Gitiles
Code Review Sign In
git01.mediatek.com / haproxy / da282f4a8f985df16e864058cb3a56b9c0e5f957 / . / src / proto_http.c
blob: 999c39ebfacf2b5908499ffa114cf2c0792b7a20 [file] [log] [blame]
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1/*
2 * HTTP protocol analyzer
3 *
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]4 * Copyright 2000-2011 Willy Tarreau <w@1wt.eu>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
13#include <ctype.h>
14#include <errno.h>
15#include <fcntl.h>
16#include <stdio.h>
17#include <stdlib.h>
18#include <string.h>
19#include <syslog.h>
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]20#include <time.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]21
22#include <sys/socket.h>
23#include <sys/stat.h>
24#include <sys/types.h>
25
Willy Tarreaub05405a2012-01-23 15:35:52 +0100[diff] [blame]26#include <netinet/tcp.h>
27
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]28#include <common/base64.h>
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]29#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200[diff] [blame]30#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +0200[diff] [blame]31#include <common/compat.h>
32#include <common/config.h>
Willy Tarreaua4cd1f52006-12-16 19:57:26 +0100[diff] [blame]33#include <common/debug.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +0200[diff] [blame]34#include <common/memory.h>
35#include <common/mini-clist.h>
36#include <common/standard.h>
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200[diff] [blame]37#include <common/ticks.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +0200[diff] [blame]38#include <common/time.h>
39#include <common/uri_auth.h>
40#include <common/version.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]41
42#include <types/capture.h>
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]43#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]44#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]45#include <types/global.h>
William Lallemand71bd11a2017-11-20 19:13:14 +0100[diff] [blame]46#include <types/cache.h>
William Lallemand9ed62032016-11-21 17:49:11 +0100[diff] [blame]47#include <types/stats.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]48
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]49#include <proto/acl.h>
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]50#include <proto/action.h>
Willy Tarreau61612d42012-04-19 18:42:05 +0200[diff] [blame]51#include <proto/arg.h>
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]52#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]53#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200[diff] [blame]54#include <proto/channel.h>
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]55#include <proto/checks.h>
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]56#include <proto/cli.h>
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]57#include <proto/compression.h>
William Lallemand9ed62032016-11-21 17:49:11 +0100[diff] [blame]58#include <proto/stats.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]59#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]60#include <proto/filters.h>
Willy Tarreau03fa5df2010-05-24 21:02:37 +0200[diff] [blame]61#include <proto/frontend.h>
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]62#include <proto/h1.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]63#include <proto/log.h>
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]64#include <proto/hdr_idx.h>
Thierry FOURNIERed66c292013-11-28 11:05:19 +0100[diff] [blame]65#include <proto/pattern.h>
Willy Tarreaub6866442008-07-14 23:54:42 +0200[diff] [blame]66#include <proto/proto_tcp.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]67#include <proto/proto_http.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +0100[diff] [blame]68#include <proto/proxy.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]69#include <proto/queue.h>
Willy Tarreaucd3b0942012-04-27 21:52:18 +0200[diff] [blame]70#include <proto/sample.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +0100[diff] [blame]71#include <proto/server.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]72#include <proto/stream.h>
Willy Tarreaucff64112008-11-03 06:26:53 +0100[diff] [blame]73#include <proto/stream_interface.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]74#include <proto/task.h>
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]75#include <proto/pattern.h>
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]76#include <proto/vars.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]77
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]78const char HTTP_100[] =
79 "HTTP/1.1 100 Continue\r\n\r\n";
80
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]81const struct buffer http_100_chunk = {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]82 .area = (char *)&HTTP_100,
83 .data = sizeof(HTTP_100)-1
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]84};
85
Willy Tarreaua9679ac2010-01-03 17:32:57 +0100[diff] [blame]86/* Warning: no "connection" header is provided with the 3xx messages below */
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200[diff] [blame]87const char *HTTP_301 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]88 "HTTP/1.1 301 Moved Permanently\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]89 "Content-length: 0\r\n"
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200[diff] [blame]90 "Location: "; /* not terminated since it will be concatenated with the URL */
91
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]92const char *HTTP_302 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]93 "HTTP/1.1 302 Found\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]94 "Cache-Control: no-cache\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]95 "Content-length: 0\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]96 "Location: "; /* not terminated since it will be concatenated with the URL */
97
98/* same as 302 except that the browser MUST retry with the GET method */
99const char *HTTP_303 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]100 "HTTP/1.1 303 See Other\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]101 "Cache-Control: no-cache\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]102 "Content-length: 0\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]103 "Location: "; /* not terminated since it will be concatenated with the URL */
104
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]105
106/* same as 302 except that the browser MUST retry with the same method */
107const char *HTTP_307 =
108 "HTTP/1.1 307 Temporary Redirect\r\n"
109 "Cache-Control: no-cache\r\n"
110 "Content-length: 0\r\n"
111 "Location: "; /* not terminated since it will be concatenated with the URL */
112
113/* same as 301 except that the browser MUST retry with the same method */
114const char *HTTP_308 =
115 "HTTP/1.1 308 Permanent Redirect\r\n"
116 "Content-length: 0\r\n"
117 "Location: "; /* not terminated since it will be concatenated with the URL */
118
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]119/* Warning: this one is an sprintf() fmt string, with <realm> as its only argument */
120const char *HTTP_401_fmt =
121 "HTTP/1.0 401 Unauthorized\r\n"
122 "Cache-Control: no-cache\r\n"
123 "Connection: close\r\n"
Willy Tarreau791d66d2006-07-08 16:53:38 +0200[diff] [blame]124 "Content-Type: text/html\r\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]125 "WWW-Authenticate: Basic realm=\"%s\"\r\n"
126 "\r\n"
127 "<html><body><h1>401 Unauthorized</h1>\nYou need a valid user and password to access this content.\n</body></html>\n";
128
Willy Tarreau844a7e72010-01-31 21:46:18 +0100[diff] [blame]129const char *HTTP_407_fmt =
130 "HTTP/1.0 407 Unauthorized\r\n"
131 "Cache-Control: no-cache\r\n"
132 "Connection: close\r\n"
133 "Content-Type: text/html\r\n"
134 "Proxy-Authenticate: Basic realm=\"%s\"\r\n"
135 "\r\n"
Godbach1f1fae62014-12-17 16:32:05 +0800[diff] [blame]136 "<html><body><h1>407 Unauthorized</h1>\nYou need a valid user and password to access this content.\n</body></html>\n";
Willy Tarreau844a7e72010-01-31 21:46:18 +0100[diff] [blame]137
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]138
139const int http_err_codes[HTTP_ERR_SIZE] = {
Willy Tarreauae94d4d2011-05-11 16:28:49 +0200[diff] [blame]140 [HTTP_ERR_200] = 200, /* used by "monitor-uri" */
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]141 [HTTP_ERR_400] = 400,
142 [HTTP_ERR_403] = 403,
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]143 [HTTP_ERR_405] = 405,
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]144 [HTTP_ERR_408] = 408,
Tim Duesterhuse2b10bf2018-04-27 21:18:46 +0200[diff] [blame]145 [HTTP_ERR_421] = 421,
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]146 [HTTP_ERR_425] = 425,
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]147 [HTTP_ERR_429] = 429,
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]148 [HTTP_ERR_500] = 500,
149 [HTTP_ERR_502] = 502,
150 [HTTP_ERR_503] = 503,
151 [HTTP_ERR_504] = 504,
152};
153
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]154static const char *http_err_msgs[HTTP_ERR_SIZE] = {
Willy Tarreauae94d4d2011-05-11 16:28:49 +0200[diff] [blame]155 [HTTP_ERR_200] =
156 "HTTP/1.0 200 OK\r\n"
157 "Cache-Control: no-cache\r\n"
158 "Connection: close\r\n"
159 "Content-Type: text/html\r\n"
160 "\r\n"
161 "<html><body><h1>200 OK</h1>\nService ready.\n</body></html>\n",
162
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]163 [HTTP_ERR_400] =
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]164 "HTTP/1.0 400 Bad request\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]165 "Cache-Control: no-cache\r\n"
166 "Connection: close\r\n"
167 "Content-Type: text/html\r\n"
168 "\r\n"
169 "<html><body><h1>400 Bad request</h1>\nYour browser sent an invalid request.\n</body></html>\n",
170
171 [HTTP_ERR_403] =
172 "HTTP/1.0 403 Forbidden\r\n"
173 "Cache-Control: no-cache\r\n"
174 "Connection: close\r\n"
175 "Content-Type: text/html\r\n"
176 "\r\n"
177 "<html><body><h1>403 Forbidden</h1>\nRequest forbidden by administrative rules.\n</body></html>\n",
178
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]179 [HTTP_ERR_405] =
180 "HTTP/1.0 405 Method Not Allowed\r\n"
181 "Cache-Control: no-cache\r\n"
182 "Connection: close\r\n"
183 "Content-Type: text/html\r\n"
184 "\r\n"
185 "<html><body><h1>405 Method Not Allowed</h1>\nA request was made of a resource using a request method not supported by that resource\n</body></html>\n",
186
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]187 [HTTP_ERR_408] =
188 "HTTP/1.0 408 Request Time-out\r\n"
189 "Cache-Control: no-cache\r\n"
190 "Connection: close\r\n"
191 "Content-Type: text/html\r\n"
192 "\r\n"
193 "<html><body><h1>408 Request Time-out</h1>\nYour browser didn't send a complete request in time.\n</body></html>\n",
194
Tim Duesterhuse2b10bf2018-04-27 21:18:46 +0200[diff] [blame]195 [HTTP_ERR_421] =
196 "HTTP/1.0 421 Misdirected Request\r\n"
197 "Cache-Control: no-cache\r\n"
198 "Connection: close\r\n"
199 "Content-Type: text/html\r\n"
200 "\r\n"
201 "<html><body><h1>421 Misdirected Request</h1>\nRequest sent to a non-authoritative server.\n</body></html>\n",
202
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]203 [HTTP_ERR_425] =
204 "HTTP/1.0 425 Too Early\r\n"
205 "Cache-Control: no-cache\r\n"
206 "Connection: close\r\n"
207 "Content-Type: text/html\r\n"
208 "\r\n"
209 "<html><body><h1>425 Too Early</h1>\nYour browser sent early data.\n</body></html>\n",
210
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]211 [HTTP_ERR_429] =
212 "HTTP/1.0 429 Too Many Requests\r\n"
213 "Cache-Control: no-cache\r\n"
214 "Connection: close\r\n"
215 "Content-Type: text/html\r\n"
216 "\r\n"
217 "<html><body><h1>429 Too Many Requests</h1>\nYou have sent too many requests in a given amount of time.\n</body></html>\n",
218
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]219 [HTTP_ERR_500] =
Jarno Huuskonen16ad94a2017-01-09 14:17:10 +0200[diff] [blame]220 "HTTP/1.0 500 Internal Server Error\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]221 "Cache-Control: no-cache\r\n"
222 "Connection: close\r\n"
223 "Content-Type: text/html\r\n"
224 "\r\n"
Jarno Huuskonen16ad94a2017-01-09 14:17:10 +0200[diff] [blame]225 "<html><body><h1>500 Internal Server Error</h1>\nAn internal server error occured.\n</body></html>\n",
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]226
227 [HTTP_ERR_502] =
228 "HTTP/1.0 502 Bad Gateway\r\n"
229 "Cache-Control: no-cache\r\n"
230 "Connection: close\r\n"
231 "Content-Type: text/html\r\n"
232 "\r\n"
233 "<html><body><h1>502 Bad Gateway</h1>\nThe server returned an invalid or incomplete response.\n</body></html>\n",
234
235 [HTTP_ERR_503] =
236 "HTTP/1.0 503 Service Unavailable\r\n"
237 "Cache-Control: no-cache\r\n"
238 "Connection: close\r\n"
239 "Content-Type: text/html\r\n"
240 "\r\n"
241 "<html><body><h1>503 Service Unavailable</h1>\nNo server is available to handle this request.\n</body></html>\n",
242
243 [HTTP_ERR_504] =
244 "HTTP/1.0 504 Gateway Time-out\r\n"
245 "Cache-Control: no-cache\r\n"
246 "Connection: close\r\n"
247 "Content-Type: text/html\r\n"
248 "\r\n"
249 "<html><body><h1>504 Gateway Time-out</h1>\nThe server didn't respond in time.\n</body></html>\n",
250
251};
252
Cyril Bonté19979e12012-04-04 12:57:21 +0200[diff] [blame]253/* status codes available for the stats admin page (strictly 4 chars length) */
254const char *stat_status_codes[STAT_STATUS_SIZE] = {
255 [STAT_STATUS_DENY] = "DENY",
256 [STAT_STATUS_DONE] = "DONE",
257 [STAT_STATUS_ERRP] = "ERRP",
258 [STAT_STATUS_EXCD] = "EXCD",
259 [STAT_STATUS_NONE] = "NONE",
260 [STAT_STATUS_PART] = "PART",
261 [STAT_STATUS_UNKN] = "UNKN",
262};
263
264
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]265/* List head of all known action keywords for "http-request" */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]266struct action_kw_list http_req_keywords = {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]267 .list = LIST_HEAD_INIT(http_req_keywords.list)
268};
269
270/* List head of all known action keywords for "http-response" */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]271struct action_kw_list http_res_keywords = {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]272 .list = LIST_HEAD_INIT(http_res_keywords.list)
273};
274
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]275/* We must put the messages here since GCC cannot initialize consts depending
276 * on strlen().
277 */
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]278struct buffer http_err_chunks[HTTP_ERR_SIZE];
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]279
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]280/* this struct is used between calls to smp_fetch_hdr() or smp_fetch_cookie() */
Christopher Faulet1bc04c72017-10-29 20:14:08 +0100[diff] [blame]281static THREAD_LOCAL struct hdr_ctx static_hdr_ctx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]282
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]283#define FD_SETS_ARE_BITFIELDS
284#ifdef FD_SETS_ARE_BITFIELDS
285/*
286 * This map is used with all the FD_* macros to check whether a particular bit
287 * is set or not. Each bit represents an ACSII code. FD_SET() sets those bytes
288 * which should be encoded. When FD_ISSET() returns non-zero, it means that the
289 * byte should be encoded. Be careful to always pass bytes from 0 to 255
290 * exclusively to the macros.
291 */
292fd_set hdr_encode_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
293fd_set url_encode_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]294fd_set http_encode_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]295
296#else
297#error "Check if your OS uses bitfields for fd_sets"
298#endif
299
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]300static int http_apply_redirect_rule(struct redirect_rule *rule, struct stream *s, struct http_txn *txn);
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]301
David Carlier7365f7d2016-04-04 11:54:42 +0100[diff] [blame]302static inline int http_msg_forward_body(struct stream *s, struct http_msg *msg);
303static inline int http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]304
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]305/* This function returns a reason associated with the HTTP status.
306 * This function never fails, a message is always returned.
307 */
308const char *get_reason(unsigned int status)
309{
310 switch (status) {
311 case 100: return "Continue";
312 case 101: return "Switching Protocols";
313 case 102: return "Processing";
314 case 200: return "OK";
315 case 201: return "Created";
316 case 202: return "Accepted";
317 case 203: return "Non-Authoritative Information";
318 case 204: return "No Content";
319 case 205: return "Reset Content";
320 case 206: return "Partial Content";
321 case 207: return "Multi-Status";
322 case 210: return "Content Different";
323 case 226: return "IM Used";
324 case 300: return "Multiple Choices";
325 case 301: return "Moved Permanently";
326 case 302: return "Moved Temporarily";
327 case 303: return "See Other";
328 case 304: return "Not Modified";
329 case 305: return "Use Proxy";
330 case 307: return "Temporary Redirect";
331 case 308: return "Permanent Redirect";
332 case 310: return "Too many Redirects";
333 case 400: return "Bad Request";
334 case 401: return "Unauthorized";
335 case 402: return "Payment Required";
336 case 403: return "Forbidden";
337 case 404: return "Not Found";
338 case 405: return "Method Not Allowed";
339 case 406: return "Not Acceptable";
340 case 407: return "Proxy Authentication Required";
341 case 408: return "Request Time-out";
342 case 409: return "Conflict";
343 case 410: return "Gone";
344 case 411: return "Length Required";
345 case 412: return "Precondition Failed";
346 case 413: return "Request Entity Too Large";
347 case 414: return "Request-URI Too Long";
348 case 415: return "Unsupported Media Type";
349 case 416: return "Requested range unsatisfiable";
350 case 417: return "Expectation failed";
351 case 418: return "I'm a teapot";
Tim Duesterhuse2b10bf2018-04-27 21:18:46 +0200[diff] [blame]352 case 421: return "Misdirected Request";
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]353 case 422: return "Unprocessable entity";
354 case 423: return "Locked";
355 case 424: return "Method failure";
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]356 case 425: return "Too Early";
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]357 case 426: return "Upgrade Required";
358 case 428: return "Precondition Required";
359 case 429: return "Too Many Requests";
360 case 431: return "Request Header Fields Too Large";
361 case 449: return "Retry With";
362 case 450: return "Blocked by Windows Parental Controls";
363 case 451: return "Unavailable For Legal Reasons";
364 case 456: return "Unrecoverable Error";
365 case 499: return "client has closed connection";
366 case 500: return "Internal Server Error";
367 case 501: return "Not Implemented";
Jarno Huuskonen59af2df2016-12-28 10:49:01 +0200[diff] [blame]368 case 502: return "Bad Gateway or Proxy Error";
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]369 case 503: return "Service Unavailable";
370 case 504: return "Gateway Time-out";
371 case 505: return "HTTP Version not supported";
372 case 506: return "Variant also negociate";
373 case 507: return "Insufficient storage";
374 case 508: return "Loop detected";
375 case 509: return "Bandwidth Limit Exceeded";
376 case 510: return "Not extended";
377 case 511: return "Network authentication required";
378 case 520: return "Web server is returning an unknown error";
379 default:
380 switch (status) {
381 case 100 ... 199: return "Informational";
382 case 200 ... 299: return "Success";
383 case 300 ... 399: return "Redirection";
384 case 400 ... 499: return "Client Error";
385 case 500 ... 599: return "Server Error";
386 default: return "Other";
387 }
388 }
389}
390
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]391/* This function returns HTTP_ERR_<num> (enum) matching http status code.
392 * Returned value should match codes from http_err_codes.
393 */
394static const int http_get_status_idx(unsigned int status)
395{
396 switch (status) {
397 case 200: return HTTP_ERR_200;
398 case 400: return HTTP_ERR_400;
399 case 403: return HTTP_ERR_403;
400 case 405: return HTTP_ERR_405;
401 case 408: return HTTP_ERR_408;
Tim Duesterhuse2b10bf2018-04-27 21:18:46 +0200[diff] [blame]402 case 421: return HTTP_ERR_421;
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]403 case 425: return HTTP_ERR_425;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]404 case 429: return HTTP_ERR_429;
405 case 500: return HTTP_ERR_500;
406 case 502: return HTTP_ERR_502;
407 case 503: return HTTP_ERR_503;
408 case 504: return HTTP_ERR_504;
409 default: return HTTP_ERR_500;
410 }
411}
412
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]413void init_proto_http()
414{
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]415 int i;
416 char *tmp;
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]417 int msg;
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]418
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]419 for (msg = 0; msg < HTTP_ERR_SIZE; msg++) {
420 if (!http_err_msgs[msg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]421 ha_alert("Internal error: no message defined for HTTP return code %d. Aborting.\n", msg);
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]422 abort();
423 }
424
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]425 http_err_chunks[msg].area = (char *)http_err_msgs[msg];
426 http_err_chunks[msg].data = strlen(http_err_msgs[msg]);
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]427 }
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]428
429 /* initialize the log header encoding map : '{|}"#' should be encoded with
430 * '#' as prefix, as well as non-printable characters ( <32 or >= 127 ).
431 * URL encoding only requires '"', '#' to be encoded as well as non-
432 * printable characters above.
433 */
434 memset(hdr_encode_map, 0, sizeof(hdr_encode_map));
435 memset(url_encode_map, 0, sizeof(url_encode_map));
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]436 memset(http_encode_map, 0, sizeof(url_encode_map));
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]437 for (i = 0; i < 32; i++) {
438 FD_SET(i, hdr_encode_map);
439 FD_SET(i, url_encode_map);
440 }
441 for (i = 127; i < 256; i++) {
442 FD_SET(i, hdr_encode_map);
443 FD_SET(i, url_encode_map);
444 }
445
446 tmp = "\"#{|}";
447 while (*tmp) {
448 FD_SET(*tmp, hdr_encode_map);
449 tmp++;
450 }
451
452 tmp = "\"#";
453 while (*tmp) {
454 FD_SET(*tmp, url_encode_map);
455 tmp++;
456 }
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]457
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]458 /* initialize the http header encoding map. The draft httpbis define the
459 * header content as:
460 *
461 * HTTP-message = start-line
462 * *( header-field CRLF )
463 * CRLF
464 * [ message-body ]
465 * header-field = field-name ":" OWS field-value OWS
466 * field-value = *( field-content / obs-fold )
467 * field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
468 * obs-fold = CRLF 1*( SP / HTAB )
469 * field-vchar = VCHAR / obs-text
470 * VCHAR = %x21-7E
471 * obs-text = %x80-FF
472 *
473 * All the chars are encoded except "VCHAR", "obs-text", SP and HTAB.
474 * The encoded chars are form 0x00 to 0x08, 0x0a to 0x1f and 0x7f. The
475 * "obs-fold" is volontary forgotten because haproxy remove this.
476 */
477 memset(http_encode_map, 0, sizeof(http_encode_map));
478 for (i = 0x00; i <= 0x08; i++)
479 FD_SET(i, http_encode_map);
480 for (i = 0x0a; i <= 0x1f; i++)
481 FD_SET(i, http_encode_map);
482 FD_SET(0x7f, http_encode_map);
483
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]484 /* memory allocations */
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]485 pool_head_http_txn = create_pool("http_txn", sizeof(struct http_txn), MEM_F_SHARED);
486 pool_head_uniqueid = create_pool("uniqueid", UNIQUEID_LEN, MEM_F_SHARED);
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]487}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]488
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]489/*
490 * We have 26 list of methods (1 per first letter), each of which can have
491 * up to 3 entries (2 valid, 1 null).
492 */
493struct http_method_desc {
Willy Tarreauc8987b32013-12-06 23:43:17 +0100[diff] [blame]494 enum http_meth_t meth;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]495 int len;
496 const char text[8];
497};
498
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]499const struct http_method_desc http_methods[26][3] = {
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]500 ['C' - 'A'] = {
501 [0] = { .meth = HTTP_METH_CONNECT , .len=7, .text="CONNECT" },
502 },
503 ['D' - 'A'] = {
504 [0] = { .meth = HTTP_METH_DELETE , .len=6, .text="DELETE" },
505 },
506 ['G' - 'A'] = {
507 [0] = { .meth = HTTP_METH_GET , .len=3, .text="GET" },
508 },
509 ['H' - 'A'] = {
510 [0] = { .meth = HTTP_METH_HEAD , .len=4, .text="HEAD" },
511 },
Christopher Fauletd57ad642015-07-31 14:26:57 +0200[diff] [blame]512 ['O' - 'A'] = {
513 [0] = { .meth = HTTP_METH_OPTIONS , .len=7, .text="OPTIONS" },
514 },
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]515 ['P' - 'A'] = {
516 [0] = { .meth = HTTP_METH_POST , .len=4, .text="POST" },
517 [1] = { .meth = HTTP_METH_PUT , .len=3, .text="PUT" },
518 },
519 ['T' - 'A'] = {
520 [0] = { .meth = HTTP_METH_TRACE , .len=5, .text="TRACE" },
521 },
522 /* rest is empty like this :
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]523 * [0] = { .meth = HTTP_METH_OTHER , .len=0, .text="" },
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]524 */
525};
526
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]527const struct http_method_name http_known_methods[HTTP_METH_OTHER] = {
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]528 [HTTP_METH_OPTIONS] = { "OPTIONS", 7 },
529 [HTTP_METH_GET] = { "GET", 3 },
530 [HTTP_METH_HEAD] = { "HEAD", 4 },
531 [HTTP_METH_POST] = { "POST", 4 },
532 [HTTP_METH_PUT] = { "PUT", 3 },
533 [HTTP_METH_DELETE] = { "DELETE", 6 },
534 [HTTP_METH_TRACE] = { "TRACE", 5 },
535 [HTTP_METH_CONNECT] = { "CONNECT", 7 },
536};
537
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]538/*
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]539 * Adds a header and its CRLF at the tail of the message's buffer, just before
Willy Tarreau4d893d42018-07-12 15:43:32 +0200[diff] [blame]540 * the last CRLF.
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]541 * The header is also automatically added to the index <hdr_idx>, and the end
542 * of headers is automatically adjusted. The number of bytes added is returned
543 * on success, otherwise <0 is returned indicating an error.
544 */
Willy Tarreau4d893d42018-07-12 15:43:32 +0200[diff] [blame]545static inline int http_header_add_tail(struct http_msg *msg, struct hdr_idx *hdr_idx, const char *text)
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]546{
Willy Tarreau4d893d42018-07-12 15:43:32 +0200[diff] [blame]547 return http_header_add_tail2(msg, hdr_idx, text, strlen(text));
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]548}
549
550/*
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]551 * Adds a header and its CRLF at the tail of the message's buffer, just before
Willy Tarreau4d893d42018-07-12 15:43:32 +0200[diff] [blame]552 * the last CRLF. <len> bytes are copied, not counting the CRLF.
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]553 * The header is also automatically added to the index <hdr_idx>, and the end
554 * of headers is automatically adjusted. The number of bytes added is returned
555 * on success, otherwise <0 is returned indicating an error.
556 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]557int http_header_add_tail2(struct http_msg *msg,
558 struct hdr_idx *hdr_idx, const char *text, int len)
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]559{
560 int bytes;
561
Willy Tarreau4d893d42018-07-12 15:43:32 +0200[diff] [blame]562 bytes = ci_insert_line2(msg->chn, msg->eoh, text, len);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]563 if (!bytes)
564 return -1;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]565 http_msg_move_end(msg, bytes);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]566 return hdr_idx_add(len, 1, hdr_idx, hdr_idx->tail);
567}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]568
569/*
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]570 * Checks if <hdr> is exactly <name> for <len> chars, and ends with a colon.
571 * If so, returns the position of the first non-space character relative to
572 * <hdr>, or <end>-<hdr> if not found before. If no value is found, it tries
573 * to return a pointer to the place after the first space. Returns 0 if the
574 * header name does not match. Checks are case-insensitive.
575 */
576int http_header_match2(const char *hdr, const char *end,
577 const char *name, int len)
578{
579 const char *val;
580
581 if (hdr + len >= end)
582 return 0;
583 if (hdr[len] != ':')
584 return 0;
585 if (strncasecmp(hdr, name, len) != 0)
586 return 0;
587 val = hdr + len + 1;
588 while (val < end && HTTP_IS_SPHT(*val))
589 val++;
590 if ((val >= end) && (len + 2 <= end - hdr))
591 return len + 2; /* we may replace starting from second space */
592 return val - hdr;
593}
594
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]595/* Find the first or next occurrence of header <name> in message buffer <sol>
596 * using headers index <idx>, and return it in the <ctx> structure. This
597 * structure holds everything necessary to use the header and find next
598 * occurrence. If its <idx> member is 0, the header is searched from the
599 * beginning. Otherwise, the next occurrence is returned. The function returns
600 * 1 when it finds a value, and 0 when there is no more. It is very similar to
601 * http_find_header2() except that it is designed to work with full-line headers
602 * whose comma is not a delimiter but is part of the syntax. As a special case,
603 * if ctx->val is NULL when searching for a new values of a header, the current
604 * header is rescanned. This allows rescanning after a header deletion.
605 */
606int http_find_full_header2(const char *name, int len,
607 char *sol, struct hdr_idx *idx,
608 struct hdr_ctx *ctx)
609{
610 char *eol, *sov;
611 int cur_idx, old_idx;
612
613 cur_idx = ctx->idx;
614 if (cur_idx) {
615 /* We have previously returned a header, let's search another one */
616 sol = ctx->line;
617 eol = sol + idx->v[cur_idx].len;
618 goto next_hdr;
619 }
620
621 /* first request for this header */
622 sol += hdr_idx_first_pos(idx);
623 old_idx = 0;
624 cur_idx = hdr_idx_first_idx(idx);
625 while (cur_idx) {
626 eol = sol + idx->v[cur_idx].len;
627
628 if (len == 0) {
629 /* No argument was passed, we want any header.
630 * To achieve this, we simply build a fake request. */
631 while (sol + len < eol && sol[len] != ':')
632 len++;
633 name = sol;
634 }
635
636 if ((len < eol - sol) &&
637 (sol[len] == ':') &&
638 (strncasecmp(sol, name, len) == 0)) {
639 ctx->del = len;
640 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]641 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]642 sov++;
643
644 ctx->line = sol;
645 ctx->prev = old_idx;
646 ctx->idx = cur_idx;
647 ctx->val = sov - sol;
648 ctx->tws = 0;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]649 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]650 eol--;
651 ctx->tws++;
652 }
653 ctx->vlen = eol - sov;
654 return 1;
655 }
656 next_hdr:
657 sol = eol + idx->v[cur_idx].cr + 1;
658 old_idx = cur_idx;
659 cur_idx = idx->v[cur_idx].next;
660 }
661 return 0;
662}
663
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]664/* Find the first or next header field in message buffer <sol> using headers
665 * index <idx>, and return it in the <ctx> structure. This structure holds
666 * everything necessary to use the header and find next occurrence. If its
667 * <idx> member is 0, the first header is retrieved. Otherwise, the next
668 * occurrence is returned. The function returns 1 when it finds a value, and
669 * 0 when there is no more. It is equivalent to http_find_full_header2() with
670 * no header name.
671 */
672int http_find_next_header(char *sol, struct hdr_idx *idx, struct hdr_ctx *ctx)
673{
674 char *eol, *sov;
675 int cur_idx, old_idx;
676 int len;
677
678 cur_idx = ctx->idx;
679 if (cur_idx) {
680 /* We have previously returned a header, let's search another one */
681 sol = ctx->line;
682 eol = sol + idx->v[cur_idx].len;
683 goto next_hdr;
684 }
685
686 /* first request for this header */
687 sol += hdr_idx_first_pos(idx);
688 old_idx = 0;
689 cur_idx = hdr_idx_first_idx(idx);
690 while (cur_idx) {
691 eol = sol + idx->v[cur_idx].len;
692
693 len = 0;
694 while (1) {
695 if (len >= eol - sol)
696 goto next_hdr;
697 if (sol[len] == ':')
698 break;
699 len++;
700 }
701
702 ctx->del = len;
703 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]704 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]705 sov++;
706
707 ctx->line = sol;
708 ctx->prev = old_idx;
709 ctx->idx = cur_idx;
710 ctx->val = sov - sol;
711 ctx->tws = 0;
712
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]713 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]714 eol--;
715 ctx->tws++;
716 }
717 ctx->vlen = eol - sov;
718 return 1;
719
720 next_hdr:
721 sol = eol + idx->v[cur_idx].cr + 1;
722 old_idx = cur_idx;
723 cur_idx = idx->v[cur_idx].next;
724 }
725 return 0;
726}
727
Lukas Tribus23953682017-04-28 13:24:30 +0000[diff] [blame]728/* Find the end of the header value contained between <s> and <e>. See RFC7230,
729 * par 3.2 for more information. Note that it requires a valid header to return
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]730 * a valid result. This works for headers defined as comma-separated lists.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]731 */
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]732char *find_hdr_value_end(char *s, const char *e)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]733{
734 int quoted, qdpair;
735
736 quoted = qdpair = 0;
Willy Tarreaue6d9c212016-11-05 18:23:38 +0100[diff] [blame]737
738#if defined(__x86_64__) || \
739 defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) || \
740 defined(__ARM_ARCH_7A__)
741 /* speedup: skip everything not a comma nor a double quote */
742 for (; s <= e - sizeof(int); s += sizeof(int)) {
743 unsigned int c = *(int *)s; // comma
744 unsigned int q = c; // quote
745
746 c ^= 0x2c2c2c2c; // contains one zero on a comma
747 q ^= 0x22222222; // contains one zero on a quote
748
749 c = (c - 0x01010101) & ~c; // contains 0x80 below a comma
750 q = (q - 0x01010101) & ~q; // contains 0x80 below a quote
751
752 if ((c | q) & 0x80808080)
753 break; // found a comma or a quote
754 }
755#endif
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]756 for (; s < e; s++) {
757 if (qdpair) qdpair = 0;
Willy Tarreau0f7f51f2010-08-30 11:06:34 +0200[diff] [blame]758 else if (quoted) {
759 if (*s == '\\') qdpair = 1;
760 else if (*s == '"') quoted = 0;
761 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]762 else if (*s == '"') quoted = 1;
763 else if (*s == ',') return s;
764 }
765 return s;
766}
767
768/* Find the first or next occurrence of header <name> in message buffer <sol>
769 * using headers index <idx>, and return it in the <ctx> structure. This
770 * structure holds everything necessary to use the header and find next
771 * occurrence. If its <idx> member is 0, the header is searched from the
772 * beginning. Otherwise, the next occurrence is returned. The function returns
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]773 * 1 when it finds a value, and 0 when there is no more. It is designed to work
774 * with headers defined as comma-separated lists. As a special case, if ctx->val
775 * is NULL when searching for a new values of a header, the current header is
776 * rescanned. This allows rescanning after a header deletion.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]777 */
778int http_find_header2(const char *name, int len,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]779 char *sol, struct hdr_idx *idx,
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]780 struct hdr_ctx *ctx)
781{
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]782 char *eol, *sov;
783 int cur_idx, old_idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]784
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]785 cur_idx = ctx->idx;
786 if (cur_idx) {
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]787 /* We have previously returned a value, let's search
788 * another one on the same line.
789 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]790 sol = ctx->line;
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]791 ctx->del = ctx->val + ctx->vlen + ctx->tws;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]792 sov = sol + ctx->del;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]793 eol = sol + idx->v[cur_idx].len;
794
795 if (sov >= eol)
796 /* no more values in this header */
797 goto next_hdr;
798
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]799 /* values remaining for this header, skip the comma but save it
800 * for later use (eg: for header deletion).
801 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]802 sov++;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]803 while (sov < eol && HTTP_IS_LWS((*sov)))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]804 sov++;
805
806 goto return_hdr;
807 }
808
809 /* first request for this header */
810 sol += hdr_idx_first_pos(idx);
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]811 old_idx = 0;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]812 cur_idx = hdr_idx_first_idx(idx);
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]813 while (cur_idx) {
814 eol = sol + idx->v[cur_idx].len;
815
Willy Tarreau1ad7c6d2007-06-10 21:42:55 +0200[diff] [blame]816 if (len == 0) {
817 /* No argument was passed, we want any header.
818 * To achieve this, we simply build a fake request. */
819 while (sol + len < eol && sol[len] != ':')
820 len++;
821 name = sol;
822 }
823
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]824 if ((len < eol - sol) &&
825 (sol[len] == ':') &&
826 (strncasecmp(sol, name, len) == 0)) {
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]827 ctx->del = len;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]828 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]829 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]830 sov++;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]831
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]832 ctx->line = sol;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]833 ctx->prev = old_idx;
834 return_hdr:
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]835 ctx->idx = cur_idx;
836 ctx->val = sov - sol;
837
838 eol = find_hdr_value_end(sov, eol);
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]839 ctx->tws = 0;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]840 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]841 eol--;
842 ctx->tws++;
843 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]844 ctx->vlen = eol - sov;
845 return 1;
846 }
847 next_hdr:
848 sol = eol + idx->v[cur_idx].cr + 1;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]849 old_idx = cur_idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]850 cur_idx = idx->v[cur_idx].next;
851 }
852 return 0;
853}
854
855int http_find_header(const char *name,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]856 char *sol, struct hdr_idx *idx,
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]857 struct hdr_ctx *ctx)
858{
859 return http_find_header2(name, strlen(name), sol, idx, ctx);
860}
861
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]862/* Remove one value of a header. This only works on a <ctx> returned by one of
863 * the http_find_header functions. The value is removed, as well as surrounding
864 * commas if any. If the removed value was alone, the whole header is removed.
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]865 * The ctx is always updated accordingly, as well as the buffer and HTTP
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]866 * message <msg>. The new index is returned. If it is zero, it means there is
867 * no more header, so any processing may stop. The ctx is always left in a form
868 * that can be handled by http_find_header2() to find next occurrence.
869 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]870int http_remove_header2(struct http_msg *msg, struct hdr_idx *idx, struct hdr_ctx *ctx)
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]871{
872 int cur_idx = ctx->idx;
873 char *sol = ctx->line;
874 struct hdr_idx_elem *hdr;
875 int delta, skip_comma;
876
877 if (!cur_idx)
878 return 0;
879
880 hdr = &idx->v[cur_idx];
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]881 if (sol[ctx->del] == ':' && ctx->val + ctx->vlen + ctx->tws == hdr->len) {
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]882 /* This was the only value of the header, we must now remove it entirely. */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]883 delta = b_rep_blk(&msg->chn->buf, sol, sol + hdr->len + hdr->cr + 1, NULL, 0);
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]884 http_msg_move_end(msg, delta);
885 idx->used--;
886 hdr->len = 0; /* unused entry */
887 idx->v[ctx->prev].next = idx->v[ctx->idx].next;
Willy Tarreau5c4784f2011-02-12 13:07:35 +0100[diff] [blame]888 if (idx->tail == ctx->idx)
889 idx->tail = ctx->prev;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]890 ctx->idx = ctx->prev; /* walk back to the end of previous header */
Willy Tarreau7c1c2172015-01-07 17:23:50 +0100[diff] [blame]891 ctx->line -= idx->v[ctx->idx].len + idx->v[ctx->idx].cr + 1;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]892 ctx->val = idx->v[ctx->idx].len; /* point to end of previous header */
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]893 ctx->tws = ctx->vlen = 0;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]894 return ctx->idx;
895 }
896
897 /* This was not the only value of this header. We have to remove between
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]898 * ctx->del+1 and ctx->val+ctx->vlen+ctx->tws+1 included. If it is the
899 * last entry of the list, we remove the last separator.
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]900 */
901
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]902 skip_comma = (ctx->val + ctx->vlen + ctx->tws == hdr->len) ? 0 : 1;
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]903 delta = b_rep_blk(&msg->chn->buf, sol + ctx->del + skip_comma,
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]904 sol + ctx->val + ctx->vlen + ctx->tws + skip_comma,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]905 NULL, 0);
906 hdr->len += delta;
907 http_msg_move_end(msg, delta);
908 ctx->val = ctx->del;
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]909 ctx->tws = ctx->vlen = 0;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]910 return ctx->idx;
911}
912
Willy Tarreau2d3d94c2008-11-30 20:20:08 +0100[diff] [blame]913/* This function handles a server error at the stream interface level. The
914 * stream interface is assumed to be already in a closed state. An optional
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]915 * message is copied into the input buffer.
Willy Tarreau2d3d94c2008-11-30 20:20:08 +0100[diff] [blame]916 * The error flags are set to the values in arguments. Any pending request
Willy Tarreau6f0aa472009-03-08 20:33:29 +0100[diff] [blame]917 * in this buffer will be lost.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]918 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]919static void http_server_error(struct stream *s, struct stream_interface *si,
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]920 int err, int finst, const struct buffer *msg)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]921{
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]922 FLT_STRM_CB(s, flt_http_reply(s, s->txn->status, msg));
Willy Tarreau2bb4a962014-11-28 11:11:05 +0100[diff] [blame]923 channel_auto_read(si_oc(si));
924 channel_abort(si_oc(si));
925 channel_auto_close(si_oc(si));
926 channel_erase(si_oc(si));
927 channel_auto_close(si_ic(si));
928 channel_auto_read(si_ic(si));
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]929 if (msg)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]930 co_inject(si_ic(si), msg->area, msg->data);
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]931 if (!(s->flags & SF_ERR_MASK))
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]932 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]933 if (!(s->flags & SF_FINST_MASK))
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]934 s->flags |= finst;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]935}
936
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]937/* This function returns the appropriate error location for the given stream
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]938 * and message.
939 */
940
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]941struct buffer *http_error_message(struct stream *s)
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]942{
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]943 const int msgnum = http_get_status_idx(s->txn->status);
944
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]945 if (s->be->errmsg[msgnum].area)
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200[diff] [blame]946 return &s->be->errmsg[msgnum];
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]947 else if (strm_fe(s)->errmsg[msgnum].area)
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]948 return &strm_fe(s)->errmsg[msgnum];
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]949 else
950 return &http_err_chunks[msgnum];
951}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]952
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]953void
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]954http_reply_and_close(struct stream *s, short status, struct buffer *msg)
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]955{
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]956 s->txn->flags &= ~TX_WAIT_NEXT_RQ;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]957 FLT_STRM_CB(s, flt_http_reply(s, status, msg));
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]958 stream_int_retnclose(&s->si[0], msg);
959}
960
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]961/*
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]962 * returns a known method among HTTP_METH_* or HTTP_METH_OTHER for all unknown
963 * ones.
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]964 */
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]965enum http_meth_t find_http_meth(const char *str, const int len)
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]966{
967 unsigned char m;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]968 const struct http_method_desc *h;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]969
970 m = ((unsigned)*str - 'A');
971
972 if (m < 26) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]973 for (h = http_methods[m]; h->len > 0; h++) {
974 if (unlikely(h->len != len))
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]975 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]976 if (likely(memcmp(str, h->text, h->len) == 0))
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]977 return h->meth;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]978 };
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]979 }
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]980 return HTTP_METH_OTHER;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]981}
982
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]983/* Parse the URI from the given transaction (which is assumed to be in request
984 * phase) and look for the "/" beginning the PATH. If not found, return NULL.
985 * It is returned otherwise.
986 */
Thierry FOURNIER3c331782015-09-17 19:33:35 +0200[diff] [blame]987char *http_get_path(struct http_txn *txn)
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]988{
989 char *ptr, *end;
990
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]991 ptr = ci_head(txn->req.chn) + txn->req.sl.rq.u;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]992 end = ptr + txn->req.sl.rq.u_l;
993
994 if (ptr >= end)
995 return NULL;
996
Lukas Tribus23953682017-04-28 13:24:30 +0000[diff] [blame]997 /* RFC7230, par. 2.7 :
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]998 * Request-URI = "*" | absuri | abspath | authority
999 */
1000
1001 if (*ptr == '*')
1002 return NULL;
1003
1004 if (isalpha((unsigned char)*ptr)) {
1005 /* this is a scheme as described by RFC3986, par. 3.1 */
1006 ptr++;
1007 while (ptr < end &&
1008 (isalnum((unsigned char)*ptr) || *ptr == '+' || *ptr == '-' || *ptr == '.'))
1009 ptr++;
1010 /* skip '://' */
1011 if (ptr == end || *ptr++ != ':')
1012 return NULL;
1013 if (ptr == end || *ptr++ != '/')
1014 return NULL;
1015 if (ptr == end || *ptr++ != '/')
1016 return NULL;
1017 }
1018 /* skip [user[:passwd]@]host[:[port]] */
1019
1020 while (ptr < end && *ptr != '/')
1021 ptr++;
1022
1023 if (ptr == end)
1024 return NULL;
1025
1026 /* OK, we got the '/' ! */
1027 return ptr;
1028}
1029
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]1030/* Parse the URI from the given string and look for the "/" beginning the PATH.
1031 * If not found, return NULL. It is returned otherwise.
1032 */
1033static char *
1034http_get_path_from_string(char *str)
1035{
1036 char *ptr = str;
1037
1038 /* RFC2616, par. 5.1.2 :
1039 * Request-URI = "*" | absuri | abspath | authority
1040 */
1041
1042 if (*ptr == '*')
1043 return NULL;
1044
1045 if (isalpha((unsigned char)*ptr)) {
1046 /* this is a scheme as described by RFC3986, par. 3.1 */
1047 ptr++;
1048 while (isalnum((unsigned char)*ptr) || *ptr == '+' || *ptr == '-' || *ptr == '.')
1049 ptr++;
1050 /* skip '://' */
1051 if (*ptr == '\0' || *ptr++ != ':')
1052 return NULL;
1053 if (*ptr == '\0' || *ptr++ != '/')
1054 return NULL;
1055 if (*ptr == '\0' || *ptr++ != '/')
1056 return NULL;
1057 }
1058 /* skip [user[:passwd]@]host[:[port]] */
1059
1060 while (*ptr != '\0' && *ptr != ' ' && *ptr != '/')
1061 ptr++;
1062
1063 if (*ptr == '\0' || *ptr == ' ')
1064 return NULL;
1065
1066 /* OK, we got the '/' ! */
1067 return ptr;
1068}
1069
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]1070/* Returns a 302 for a redirectable request that reaches a server working in
1071 * in redirect mode. This may only be called just after the stream interface
1072 * has moved to SI_ST_ASS. Unprocessable requests are left unchanged and will
1073 * follow normal proxy processing. NOTE: this function is designed to support
1074 * being called once data are scheduled for forwarding.
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1075 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1076void http_perform_server_redirect(struct stream *s, struct stream_interface *si)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1077{
1078 struct http_txn *txn;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1079 struct server *srv;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1080 char *path;
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1081 int len, rewind;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1082
1083 /* 1: create the response header */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]1084 trash.data = strlen(HTTP_302);
1085 memcpy(trash.area, HTTP_302, trash.data);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1086
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]1087 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1088
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1089 /* 2: add the server's prefix */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]1090 if (trash.data + srv->rdr_len > trash.size)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1091 return;
1092
Willy Tarreaudcb75c42010-01-10 00:24:22 +0100[diff] [blame]1093 /* special prefix "/" means don't change URL */
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1094 if (srv->rdr_len != 1 || *srv->rdr_pfx != '/') {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]1095 memcpy(trash.area + trash.data, srv->rdr_pfx, srv->rdr_len);
1096 trash.data += srv->rdr_len;
Willy Tarreaudcb75c42010-01-10 00:24:22 +0100[diff] [blame]1097 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1098
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1099 /* 3: add the request URI. Since it was already forwarded, we need
1100 * to temporarily rewind the buffer.
1101 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1102 txn = s->txn;
Willy Tarreaubcbd3932018-06-06 07:13:22 +0200[diff] [blame]1103 c_rew(&s->req, rewind = http_hdr_rewind(&txn->req));
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1104
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1105 path = http_get_path(txn);
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]1106 len = b_dist(&s->req.buf, path, c_ptr(&s->req, txn->req.sl.rq.u + txn->req.sl.rq.u_l));
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1107
Willy Tarreaubcbd3932018-06-06 07:13:22 +0200[diff] [blame]1108 c_adv(&s->req, rewind);
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1109
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1110 if (!path)
1111 return;
1112
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]1113 if (trash.data + len > trash.size - 4) /* 4 for CRLF-CRLF */
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1114 return;
1115
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]1116 memcpy(trash.area + trash.data, path, len);
1117 trash.data += len;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1118
1119 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]1120 memcpy(trash.area + trash.data,
1121 "\r\nProxy-Connection: close\r\n\r\n", 29);
1122 trash.data += 29;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1123 } else {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]1124 memcpy(trash.area + trash.data,
1125 "\r\nConnection: close\r\n\r\n", 23);
1126 trash.data += 23;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1127 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1128
1129 /* prepare to return without error. */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200[diff] [blame]1130 si_shutr(si);
1131 si_shutw(si);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1132 si->err_type = SI_ET_NONE;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1133 si->state = SI_ST_CLO;
1134
1135 /* send the message */
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1136 txn->status = 302;
1137 http_server_error(s, si, SF_ERR_LOCAL, SF_FINST_C, &trash);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1138
1139 /* FIXME: we should increase a counter of redirects per server and per backend. */
Willy Tarreau4521ba62013-01-24 01:25:25 +0100[diff] [blame]1140 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -0500[diff] [blame]1141 srv_set_sess_last(srv);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1142}
1143
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100[diff] [blame]1144/* Return the error message corresponding to si->err_type. It is assumed
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1145 * that the server side is closed. Note that err_type is actually a
1146 * bitmask, where almost only aborts may be cumulated with other
1147 * values. We consider that aborted operations are more important
1148 * than timeouts or errors due to the fact that nobody else in the
1149 * logs might explain incomplete retries. All others should avoid
1150 * being cumulated. It should normally not be possible to have multiple
1151 * aborts at once, but just in case, the first one in sequence is reported.
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]1152 * Note that connection errors appearing on the second request of a keep-alive
1153 * connection are not reported since this allows the client to retry.
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1154 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1155void http_return_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1156{
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100[diff] [blame]1157 int err_type = si->err_type;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1158
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1159 /* set s->txn->status for http_error_message(s) */
1160 s->txn->status = 503;
1161
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1162 if (err_type & SI_ET_QUEUE_ABRT)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1163 http_server_error(s, si, SF_ERR_CLICL, SF_FINST_Q,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1164 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1165 else if (err_type & SI_ET_CONN_ABRT)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1166 http_server_error(s, si, SF_ERR_CLICL, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1167 (s->txn->flags & TX_NOT_FIRST) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1168 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1169 else if (err_type & SI_ET_QUEUE_TO)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1170 http_server_error(s, si, SF_ERR_SRVTO, SF_FINST_Q,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1171 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1172 else if (err_type & SI_ET_QUEUE_ERR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1173 http_server_error(s, si, SF_ERR_SRVCL, SF_FINST_Q,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1174 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1175 else if (err_type & SI_ET_CONN_TO)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1176 http_server_error(s, si, SF_ERR_SRVTO, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1177 (s->txn->flags & TX_NOT_FIRST) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1178 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1179 else if (err_type & SI_ET_CONN_ERR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1180 http_server_error(s, si, SF_ERR_SRVCL, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1181 (s->flags & SF_SRV_REUSED) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1182 http_error_message(s));
Willy Tarreau2d400bb2012-05-14 12:11:47 +0200[diff] [blame]1183 else if (err_type & SI_ET_CONN_RES)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1184 http_server_error(s, si, SF_ERR_RESOURCE, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1185 (s->txn->flags & TX_NOT_FIRST) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1186 http_error_message(s));
1187 else { /* SI_ET_CONN_OTHER and others */
1188 s->txn->status = 500;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1189 http_server_error(s, si, SF_ERR_INTERNAL, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1190 http_error_message(s));
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1191 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1192}
1193
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]1194extern const char sess_term_cond[8];
1195extern const char sess_fin_state[8];
1196extern const char *monthname[12];
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]1197struct pool_head *pool_head_http_txn;
1198struct pool_head *pool_head_requri;
1199struct pool_head *pool_head_capture = NULL;
1200struct pool_head *pool_head_uniqueid;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1201
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1202/*
1203 * Capture headers from message starting at <som> according to header list
Willy Tarreau54da8db2014-06-13 16:11:48 +0200[diff] [blame]1204 * <cap_hdr>, and fill the <cap> pointers appropriately.
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1205 */
1206void capture_headers(char *som, struct hdr_idx *idx,
1207 char **cap, struct cap_hdr *cap_hdr)
1208{
1209 char *eol, *sol, *col, *sov;
1210 int cur_idx;
1211 struct cap_hdr *h;
1212 int len;
1213
1214 sol = som + hdr_idx_first_pos(idx);
1215 cur_idx = hdr_idx_first_idx(idx);
1216
1217 while (cur_idx) {
1218 eol = sol + idx->v[cur_idx].len;
1219
1220 col = sol;
1221 while (col < eol && *col != ':')
1222 col++;
1223
1224 sov = col + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]1225 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1226 sov++;
1227
1228 for (h = cap_hdr; h; h = h->next) {
Willy Tarreau54da8db2014-06-13 16:11:48 +0200[diff] [blame]1229 if (h->namelen && (h->namelen == col - sol) &&
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1230 (strncasecmp(sol, h->name, h->namelen) == 0)) {
1231 if (cap[h->index] == NULL)
1232 cap[h->index] =
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]1233 pool_alloc(h->pool);
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1234
1235 if (cap[h->index] == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]1236 ha_alert("HTTP capture : out of memory.\n");
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1237 continue;
1238 }
1239
1240 len = eol - sov;
1241 if (len > h->len)
1242 len = h->len;
1243
1244 memcpy(cap[h->index], sov, len);
1245 cap[h->index][len]=0;
1246 }
1247 }
1248 sol = eol + idx->v[cur_idx].cr + 1;
1249 cur_idx = idx->v[cur_idx].next;
1250 }
1251}
1252
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1253/*
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1254 * Returns the data from Authorization header. Function may be called more
1255 * than once so data is stored in txn->auth_data. When no header is found
1256 * or auth method is unknown auth_method is set to HTTP_AUTH_WRONG to avoid
Thierry FOURNIER98d96952014-01-23 12:13:02 +0100[diff] [blame]1257 * searching again for something we are unable to find anyway. However, if
1258 * the result if valid, the cache is not reused because we would risk to
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1259 * have the credentials overwritten by another stream in parallel.
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1260 */
1261
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1262int
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1263get_http_auth(struct stream *s)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1264{
1265
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1266 struct http_txn *txn = s->txn;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]1267 struct buffer auth_method;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1268 struct hdr_ctx ctx;
1269 char *h, *p;
1270 int len;
1271
1272#ifdef DEBUG_AUTH
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1273 printf("Auth for stream %p: %d\n", s, txn->auth.method);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1274#endif
1275
1276 if (txn->auth.method == HTTP_AUTH_WRONG)
1277 return 0;
1278
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1279 txn->auth.method = HTTP_AUTH_WRONG;
1280
1281 ctx.idx = 0;
Willy Tarreau844a7e72010-01-31 21:46:18 +0100[diff] [blame]1282
1283 if (txn->flags & TX_USE_PX_CONN) {
1284 h = "Proxy-Authorization";
1285 len = strlen(h);
1286 } else {
1287 h = "Authorization";
1288 len = strlen(h);
1289 }
1290
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1291 if (!http_find_header2(h, len, ci_head(&s->req), &txn->hdr_idx, &ctx))
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1292 return 0;
1293
1294 h = ctx.line + ctx.val;
1295
1296 p = memchr(h, ' ', ctx.vlen);
Willy Tarreau5c557d12016-03-13 08:17:02 +0100[diff] [blame]1297 len = p - h;
1298 if (!p || len <= 0)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1299 return 0;
1300
David Carlier7365f7d2016-04-04 11:54:42 +0100[diff] [blame]1301 if (chunk_initlen(&auth_method, h, 0, len) != 1)
1302 return 0;
1303
Willy Tarreau5c557d12016-03-13 08:17:02 +0100[diff] [blame]1304 chunk_initlen(&txn->auth.method_data, p + 1, 0, ctx.vlen - len - 1);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1305
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]1306 if (!strncasecmp("Basic", auth_method.area, auth_method.data)) {
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]1307 struct buffer *http_auth = get_trash_chunk();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1308
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]1309 len = base64dec(txn->auth.method_data.area,
1310 txn->auth.method_data.data,
1311 http_auth->area, global.tune.bufsize - 1);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1312
1313 if (len < 0)
1314 return 0;
1315
1316
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]1317 http_auth->area[len] = '\0';
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1318
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]1319 p = strchr(http_auth->area, ':');
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1320
1321 if (!p)
1322 return 0;
1323
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]1324 txn->auth.user = http_auth->area;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1325 *p = '\0';
1326 txn->auth.pass = p+1;
1327
1328 txn->auth.method = HTTP_AUTH_BASIC;
1329 return 1;
1330 }
1331
1332 return 0;
1333}
1334
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]1335
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1336/* convert an HTTP/0.9 request into an HTTP/1.0 request. Returns 1 if the
1337 * conversion succeeded, 0 in case of error. If the request was already 1.X,
1338 * nothing is done and 1 is returned.
1339 */
Willy Tarreau418bfcc2012-03-09 13:56:20 +0100[diff] [blame]1340static int http_upgrade_v09_to_v10(struct http_txn *txn)
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1341{
1342 int delta;
1343 char *cur_end;
Willy Tarreau418bfcc2012-03-09 13:56:20 +0100[diff] [blame]1344 struct http_msg *msg = &txn->req;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1345
1346 if (msg->sl.rq.v_l != 0)
1347 return 1;
1348
Apollon Oikonomopoulos25a15222014-04-06 02:46:00 +0300[diff] [blame]1349 /* RFC 1945 allows only GET for HTTP/0.9 requests */
1350 if (txn->meth != HTTP_METH_GET)
1351 return 0;
1352
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1353 cur_end = ci_head(msg->chn) + msg->sl.rq.l;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1354
1355 if (msg->sl.rq.u_l == 0) {
Apollon Oikonomopoulos25a15222014-04-06 02:46:00 +0300[diff] [blame]1356 /* HTTP/0.9 requests *must* have a request URI, per RFC 1945 */
1357 return 0;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1358 }
1359 /* add HTTP version */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]1360 delta = b_rep_blk(&msg->chn->buf, cur_end, cur_end, " HTTP/1.0\r\n", 11);
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]1361 http_msg_move_end(msg, delta);
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1362 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1363 cur_end = (char *)http_parse_reqline(msg,
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1364 HTTP_MSG_RQMETH,
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1365 ci_head(msg->chn), cur_end + 1,
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1366 NULL, NULL);
1367 if (unlikely(!cur_end))
1368 return 0;
1369
1370 /* we have a full HTTP/1.0 request now and we know that
1371 * we have either a CR or an LF at <ptr>.
1372 */
1373 hdr_idx_set_start(&txn->hdr_idx, msg->sl.rq.l, *cur_end == '\r');
1374 return 1;
1375}
1376
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1377/* Parse the Connection: header of an HTTP request, looking for both "close"
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1378 * and "keep-alive" values. If we already know that some headers may safely
1379 * be removed, we remove them now. The <to_del> flags are used for that :
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1380 * - bit 0 means remove "close" headers (in HTTP/1.0 requests/responses)
1381 * - bit 1 means remove "keep-alive" headers (in HTTP/1.1 reqs/resp to 1.1).
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]1382 * Presence of the "Upgrade" token is also checked and reported.
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1383 * The TX_HDR_CONN_* flags are adjusted in txn->flags depending on what was
1384 * found, and TX_CON_*_SET is adjusted depending on what is left so only
1385 * harmless combinations may be removed. Do not call that after changes have
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1386 * been processed.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1387 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1388void http_parse_connection_header(struct http_txn *txn, struct http_msg *msg, int to_del)
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1389{
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1390 struct hdr_ctx ctx;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1391 const char *hdr_val = "Connection";
1392 int hdr_len = 10;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1393
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1394 if (txn->flags & TX_HDR_CONN_PRS)
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1395 return;
1396
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1397 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1398 hdr_val = "Proxy-Connection";
1399 hdr_len = 16;
1400 }
1401
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1402 ctx.idx = 0;
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1403 txn->flags &= ~(TX_CON_KAL_SET|TX_CON_CLO_SET);
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1404 while (http_find_header2(hdr_val, hdr_len, ci_head(msg->chn), &txn->hdr_idx, &ctx)) {
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1405 if (ctx.vlen >= 10 && word_match(ctx.line + ctx.val, ctx.vlen, "keep-alive", 10)) {
1406 txn->flags |= TX_HDR_CONN_KAL;
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1407 if (to_del & 2)
1408 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1409 else
1410 txn->flags |= TX_CON_KAL_SET;
1411 }
1412 else if (ctx.vlen >= 5 && word_match(ctx.line + ctx.val, ctx.vlen, "close", 5)) {
1413 txn->flags |= TX_HDR_CONN_CLO;
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1414 if (to_del & 1)
1415 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1416 else
1417 txn->flags |= TX_CON_CLO_SET;
1418 }
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]1419 else if (ctx.vlen >= 7 && word_match(ctx.line + ctx.val, ctx.vlen, "upgrade", 7)) {
1420 txn->flags |= TX_HDR_CONN_UPG;
1421 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1422 }
1423
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1424 txn->flags |= TX_HDR_CONN_PRS;
1425 return;
1426}
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1427
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1428/* Apply desired changes on the Connection: header. Values may be removed and/or
1429 * added depending on the <wanted> flags, which are exclusively composed of
1430 * TX_CON_CLO_SET and TX_CON_KAL_SET, depending on what flags are desired. The
1431 * TX_CON_*_SET flags are adjusted in txn->flags depending on what is left.
1432 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1433void http_change_connection_header(struct http_txn *txn, struct http_msg *msg, int wanted)
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1434{
1435 struct hdr_ctx ctx;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1436 const char *hdr_val = "Connection";
1437 int hdr_len = 10;
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1438
1439 ctx.idx = 0;
1440
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1441
1442 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1443 hdr_val = "Proxy-Connection";
1444 hdr_len = 16;
1445 }
1446
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1447 txn->flags &= ~(TX_CON_CLO_SET | TX_CON_KAL_SET);
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1448 while (http_find_header2(hdr_val, hdr_len, ci_head(msg->chn), &txn->hdr_idx, &ctx)) {
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1449 if (ctx.vlen >= 10 && word_match(ctx.line + ctx.val, ctx.vlen, "keep-alive", 10)) {
1450 if (wanted & TX_CON_KAL_SET)
1451 txn->flags |= TX_CON_KAL_SET;
1452 else
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1453 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1454 }
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1455 else if (ctx.vlen >= 5 && word_match(ctx.line + ctx.val, ctx.vlen, "close", 5)) {
1456 if (wanted & TX_CON_CLO_SET)
1457 txn->flags |= TX_CON_CLO_SET;
1458 else
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1459 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreau0dfdf192010-01-05 11:33:11 +0100[diff] [blame]1460 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1461 }
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1462
1463 if (wanted == (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
1464 return;
1465
1466 if ((wanted & TX_CON_CLO_SET) && !(txn->flags & TX_CON_CLO_SET)) {
1467 txn->flags |= TX_CON_CLO_SET;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1468 hdr_val = "Connection: close";
1469 hdr_len = 17;
1470 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1471 hdr_val = "Proxy-Connection: close";
1472 hdr_len = 23;
1473 }
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1474 http_header_add_tail2(msg, &txn->hdr_idx, hdr_val, hdr_len);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1475 }
1476
1477 if ((wanted & TX_CON_KAL_SET) && !(txn->flags & TX_CON_KAL_SET)) {
1478 txn->flags |= TX_CON_KAL_SET;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1479 hdr_val = "Connection: keep-alive";
1480 hdr_len = 22;
1481 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1482 hdr_val = "Proxy-Connection: keep-alive";
1483 hdr_len = 28;
1484 }
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1485 http_header_add_tail2(msg, &txn->hdr_idx, hdr_val, hdr_len);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1486 }
1487 return;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1488}
1489
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1490/* Parses a qvalue and returns it multipled by 1000, from 0 to 1000. If the
1491 * value is larger than 1000, it is bound to 1000. The parser consumes up to
1492 * 1 digit, one dot and 3 digits and stops on the first invalid character.
1493 * Unparsable qvalues return 1000 as "q=1.000".
1494 */
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]1495int parse_qvalue(const char *qvalue, const char **end)
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1496{
1497 int q = 1000;
1498
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1499 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1500 goto out;
1501 q = (*qvalue++ - '0') * 1000;
1502
1503 if (*qvalue++ != '.')
1504 goto out;
1505
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1506 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1507 goto out;
1508 q += (*qvalue++ - '0') * 100;
1509
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1510 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1511 goto out;
1512 q += (*qvalue++ - '0') * 10;
1513
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1514 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1515 goto out;
1516 q += (*qvalue++ - '0') * 1;
1517 out:
1518 if (q > 1000)
1519 q = 1000;
Willy Tarreau38b3aa52014-04-22 23:32:05 +0200[diff] [blame]1520 if (end)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]1521 *end = qvalue;
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1522 return q;
1523}
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]1524
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1525void http_adjust_conn_mode(struct stream *s, struct http_txn *txn, struct http_msg *msg)
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1526{
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]1527 struct proxy *fe = strm_fe(s);
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1528 int tmp = TX_CON_WANT_KAL;
1529
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1530 if (!((fe->options2|s->be->options2) & PR_O2_FAKE_KA)) {
1531 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_TUN ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1532 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_TUN)
1533 tmp = TX_CON_WANT_TUN;
1534
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1535 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1536 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)
1537 tmp = TX_CON_WANT_TUN;
1538 }
1539
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1540 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1541 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL) {
1542 /* option httpclose + server_close => forceclose */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1543 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1544 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)
1545 tmp = TX_CON_WANT_CLO;
1546 else
1547 tmp = TX_CON_WANT_SCL;
1548 }
1549
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1550 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_FCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1551 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_FCL)
1552 tmp = TX_CON_WANT_CLO;
1553
1554 if ((txn->flags & TX_CON_WANT_MSK) < tmp)
1555 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | tmp;
1556
1557 if (!(txn->flags & TX_HDR_CONN_PRS) &&
1558 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) {
1559 /* parse the Connection header and possibly clean it */
1560 int to_del = 0;
1561 if ((msg->flags & HTTP_MSGF_VER_11) ||
1562 ((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1563 !((fe->options2|s->be->options2) & PR_O2_FAKE_KA)))
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1564 to_del |= 2; /* remove "keep-alive" */
1565 if (!(msg->flags & HTTP_MSGF_VER_11))
1566 to_del |= 1; /* remove "close" */
1567 http_parse_connection_header(txn, msg, to_del);
1568 }
1569
1570 /* check if client or config asks for explicit close in KAL/SCL */
1571 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
1572 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) &&
1573 ((txn->flags & TX_HDR_CONN_CLO) || /* "connection: close" */
1574 (!(msg->flags & HTTP_MSGF_VER_11) && !(txn->flags & TX_HDR_CONN_KAL)) || /* no "connection: k-a" in 1.0 */
1575 !(msg->flags & HTTP_MSGF_XFER_LEN) || /* no length known => close */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1576 fe->state == PR_STSTOPPED)) /* frontend is stopping */
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1577 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
1578}
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]1579
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1580/* This stream analyser waits for a complete HTTP request. It returns 1 if the
1581 * processing can continue on next analysers, or zero if it either needs more
1582 * data or wants to immediately abort the request (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1583 * is tied to AN_REQ_WAIT_HTTP and may may remove itself from s->req.analysers
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1584 * when it has nothing left to do, and may remove any analyser when it wants to
1585 * abort.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1586 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1587int http_wait_for_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1588{
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1589 /*
1590 * We will parse the partial (or complete) lines.
1591 * We will check the request syntax, and also join multi-line
1592 * headers. An index of all the lines will be elaborated while
1593 * parsing.
1594 *
1595 * For the parsing, we use a 28 states FSM.
1596 *
1597 * Here is the information we currently have :
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1598 * ci_head(req) = beginning of request
1599 * ci_head(req) + msg->eoh = end of processed headers / start of current one
1600 * ci_tail(req) = end of input data
1601 * msg->eol = end of current header or line (LF or CRLF)
1602 * msg->next = first non-visited byte
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1603 *
1604 * At end of parsing, we may perform a capture of the error (if any), and
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1605 * we will set a few fields (txn->meth, sn->flags/SF_REDIRECTABLE).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1606 * We also check for monitor-uri, logging, HTTP/0.9 to 1.0 conversion, and
1607 * finally headers capture.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1608 */
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1609
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1610 int cur_idx;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1611 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1612 struct http_txn *txn = s->txn;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1613 struct http_msg *msg = &txn->req;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]1614 struct hdr_ctx ctx;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1615
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]1616 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%lu analysers=%02x\n",
Willy Tarreau6bf17362009-02-24 10:48:35 +0100[diff] [blame]1617 now_ms, __FUNCTION__,
1618 s,
1619 req,
1620 req->rex, req->wex,
1621 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]1622 ci_data(req),
Willy Tarreau6bf17362009-02-24 10:48:35 +0100[diff] [blame]1623 req->analysers);
1624
Willy Tarreau52a0c602009-08-16 22:45:38 +0200[diff] [blame]1625 /* we're speaking HTTP here, so let's speak HTTP to the client */
1626 s->srv_error = http_return_srv_error;
1627
Rian McGuire89fcb7d2018-04-24 11:19:21 -0300[diff] [blame]1628 /* If there is data available for analysis, log the end of the idle time. */
Willy Tarreaud760eec2018-07-10 09:50:25 +0200[diff] [blame]1629 if (c_data(req) && s->logs.t_idle == -1)
Rian McGuire89fcb7d2018-04-24 11:19:21 -0300[diff] [blame]1630 s->logs.t_idle = tv_ms_elapsed(&s->logs.tv_accept, &now) - s->logs.t_handshake;
1631
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]1632 /* There's a protected area at the end of the buffer for rewriting
1633 * purposes. We don't want to start to parse the request if the
1634 * protected area is affected, because we may have to move processed
1635 * data later, which is much more complicated.
1636 */
Willy Tarreaud760eec2018-07-10 09:50:25 +0200[diff] [blame]1637 if (c_data(req) && msg->msg_state < HTTP_MSG_ERROR) {
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]1638 if (txn->flags & TX_NOT_FIRST) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]1639 if (unlikely(!channel_is_rewritable(req))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1640 if (req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]1641 goto failed_keep_alive;
Willy Tarreau2ab6eb12010-01-02 22:04:45 +0100[diff] [blame]1642 /* some data has still not left the buffer, wake us once that's done */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]1643 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1644 req->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]1645 req->flags |= CF_WAKE_WRITE;
Willy Tarreau2ab6eb12010-01-02 22:04:45 +0100[diff] [blame]1646 return 0;
1647 }
Willy Tarreau188e2302018-06-15 11:11:53 +0200[diff] [blame]1648 if (unlikely(ci_tail(req) < c_ptr(req, msg->next) ||
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]1649 ci_tail(req) > b_wrap(&req->buf) - global.tune.maxrewrite))
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]1650 channel_slow_realign(req, trash.area);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]1651 }
1652
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1653 if (likely(msg->next < ci_data(req))) /* some unparsed data are available */
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]1654 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]1655 }
1656
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1657 /* 1: we might have to print this header in debug mode */
1658 if (unlikely((global.mode & MODE_DEBUG) &&
1659 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]1660 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1661 char *eol, *sol;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1662
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1663 sol = ci_head(req);
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]1664 /* this is a bit complex : in case of error on the request line,
1665 * we know that rq.l is still zero, so we display only the part
1666 * up to the end of the line (truncated by debug_hdr).
1667 */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1668 eol = sol + (msg->sl.rq.l ? msg->sl.rq.l : ci_data(req));
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1669 debug_hdr("clireq", s, sol, eol);
Willy Tarreau45e73e32006-12-17 00:05:15 +0100[diff] [blame]1670
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1671 sol += hdr_idx_first_pos(&txn->hdr_idx);
1672 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1673
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1674 while (cur_idx) {
1675 eol = sol + txn->hdr_idx.v[cur_idx].len;
1676 debug_hdr("clihdr", s, sol, eol);
1677 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
1678 cur_idx = txn->hdr_idx.v[cur_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1679 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1680 }
1681
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1682
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1683 /*
1684 * Now we quickly check if we have found a full valid request.
1685 * If not so, we check the FD and buffer states before leaving.
1686 * A full request is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]1687 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1688 * requests are checked first. When waiting for a second request
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1689 * on a keep-alive stream, if we encounter and error, close, t/o,
1690 * we note the error in the stream flags but don't set any state.
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1691 * Since the error will be noted there, it will not be counted by
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1692 * process_stream() as a frontend error.
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1693 * Last, we may increase some tracked counters' http request errors on
1694 * the cases that are deliberately the client's fault. For instance,
1695 * a timeout or connection reset is not counted as an error. However
1696 * a bad request is.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1697 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1698
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]1699 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1700 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1701 * First, let's catch bad requests.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1702 */
Willy Tarreau3e1b6d12010-03-04 23:02:38 +0100[diff] [blame]1703 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1704 stream_inc_http_req_ctr(s);
1705 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1706 proxy_inc_fe_req_ctr(sess->fe);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1707 goto return_bad_req;
Willy Tarreau3e1b6d12010-03-04 23:02:38 +0100[diff] [blame]1708 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1709
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1710 /* 1: Since we are in header mode, if there's no space
1711 * left for headers, we won't be able to free more
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1712 * later, so the stream will never terminate. We
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1713 * must terminate it now.
1714 */
Willy Tarreau23752332018-06-15 14:54:53 +0200[diff] [blame]1715 if (unlikely(channel_full(req, global.tune.maxrewrite))) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1716 /* FIXME: check if URI is set and return Status
1717 * 414 Request URI too long instead.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1718 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1719 stream_inc_http_req_ctr(s);
1720 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1721 proxy_inc_fe_req_ctr(sess->fe);
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]1722 if (msg->err_pos < 0)
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1723 msg->err_pos = ci_data(req);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1724 goto return_bad_req;
1725 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1726
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1727 /* 2: have we encountered a read error ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1728 else if (req->flags & CF_READ_ERROR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1729 if (!(s->flags & SF_ERR_MASK))
1730 s->flags |= SF_ERR_CLICL;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1731
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1732 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1733 goto failed_keep_alive;
1734
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]1735 if (sess->fe->options & PR_O_IGNORE_PRB)
1736 goto failed_keep_alive;
1737
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1738 /* we cannot return any message on error */
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1739 if (msg->err_pos >= 0) {
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1740 http_capture_bad_message(sess->fe, &sess->fe->invalid_req, s, msg, msg->err_state, sess->fe);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1741 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1742 }
1743
Willy Tarreaudc979f22012-12-04 10:39:01 +0100[diff] [blame]1744 txn->status = 400;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1745 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1746 msg->msg_state = HTTP_MSG_ERROR;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]1747 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1748 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1749 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1750 proxy_inc_fe_req_ctr(sess->fe);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1751 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1752 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]1753 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1754
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1755 if (!(s->flags & SF_FINST_MASK))
1756 s->flags |= SF_FINST_R;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1757 return 0;
1758 }
Willy Tarreauf9839bd2008-08-27 23:57:16 +0200[diff] [blame]1759
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1760 /* 3: has the read timeout expired ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1761 else if (req->flags & CF_READ_TIMEOUT || tick_is_expired(req->analyse_exp, now_ms)) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1762 if (!(s->flags & SF_ERR_MASK))
1763 s->flags |= SF_ERR_CLITO;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1764
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1765 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1766 goto failed_keep_alive;
1767
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]1768 if (sess->fe->options & PR_O_IGNORE_PRB)
1769 goto failed_keep_alive;
1770
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1771 /* read timeout : give up with an error message. */
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1772 if (msg->err_pos >= 0) {
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1773 http_capture_bad_message(sess->fe, &sess->fe->invalid_req, s, msg, msg->err_state, sess->fe);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1774 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1775 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1776 txn->status = 408;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1777 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1778 msg->msg_state = HTTP_MSG_ERROR;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1779 http_reply_and_close(s, txn->status, http_error_message(s));
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1780 req->analysers &= AN_REQ_FLT_END;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1781
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1782 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1783 proxy_inc_fe_req_ctr(sess->fe);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1784 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1785 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]1786 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1787
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1788 if (!(s->flags & SF_FINST_MASK))
1789 s->flags |= SF_FINST_R;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1790 return 0;
1791 }
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]1792
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1793 /* 4: have we encountered a close ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1794 else if (req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1795 if (!(s->flags & SF_ERR_MASK))
1796 s->flags |= SF_ERR_CLICL;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1797
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1798 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1799 goto failed_keep_alive;
1800
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]1801 if (sess->fe->options & PR_O_IGNORE_PRB)
1802 goto failed_keep_alive;
1803
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]1804 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1805 http_capture_bad_message(sess->fe, &sess->fe->invalid_req, s, msg, msg->err_state, sess->fe);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1806 txn->status = 400;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1807 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1808 msg->msg_state = HTTP_MSG_ERROR;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1809 http_reply_and_close(s, txn->status, http_error_message(s));
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1810 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1811 stream_inc_http_err_ctr(s);
1812 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1813 proxy_inc_fe_req_ctr(sess->fe);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1814 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1815 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]1816 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1817
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1818 if (!(s->flags & SF_FINST_MASK))
1819 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]1820 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1821 }
1822
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]1823 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1824 req->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1825 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]1826#ifdef TCP_QUICKACK
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1827 if (sess->listener->options & LI_O_NOQUICKACK && ci_data(req) &&
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]1828 objt_conn(sess->origin) && conn_ctrl_ready(__objt_conn(sess->origin))) {
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]1829 /* We need more data, we have to re-enable quick-ack in case we
1830 * previously disabled it, otherwise we might cause the client
1831 * to delay next data.
1832 */
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]1833 setsockopt(__objt_conn(sess->origin)->handle.fd, IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one));
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]1834 }
1835#endif
Willy Tarreau1b194fe2009-03-21 21:10:04 +0100[diff] [blame]1836
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1837 if ((msg->msg_state != HTTP_MSG_RQBEFORE) && (txn->flags & TX_WAIT_NEXT_RQ)) {
1838 /* If the client starts to talk, let's fall back to
1839 * request timeout processing.
1840 */
1841 txn->flags &= ~TX_WAIT_NEXT_RQ;
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]1842 req->analyse_exp = TICK_ETERNITY;
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1843 }
1844
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1845 /* just set the request timeout once at the beginning of the request */
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]1846 if (!tick_isset(req->analyse_exp)) {
1847 if ((msg->msg_state == HTTP_MSG_RQBEFORE) &&
1848 (txn->flags & TX_WAIT_NEXT_RQ) &&
1849 tick_isset(s->be->timeout.httpka))
1850 req->analyse_exp = tick_add(now_ms, s->be->timeout.httpka);
1851 else
1852 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
1853 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1854
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1855 /* we're not ready yet */
1856 return 0;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1857
1858 failed_keep_alive:
1859 /* Here we process low-level errors for keep-alive requests. In
1860 * short, if the request is not the first one and it experiences
1861 * a timeout, read error or shutdown, we just silently close so
1862 * that the client can try again.
1863 */
1864 txn->status = 0;
1865 msg->msg_state = HTTP_MSG_RQBEFORE;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1866 req->analysers &= AN_REQ_FLT_END;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1867 s->logs.logwait = 0;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]1868 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1869 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]1870 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1871 return 0;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1872 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1873
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1874 /* OK now we have a complete HTTP request with indexed headers. Let's
1875 * complete the request parsing by setting a few fields we will need
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]1876 * later. At this point, we have the last CRLF at req->buf.data + msg->eoh.
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]1877 * If the request is in HTTP/0.9 form, the rule is still true, and eoh
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]1878 * points to the CRLF of the request line. msg->next points to the first
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]1879 * byte after the last LF. msg->sov points to the first byte of data.
1880 * msg->eol cannot be trusted because it may have been left uninitialized
1881 * (for instance in the absence of headers).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1882 */
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]1883
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1884 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1885 proxy_inc_fe_req_ctr(sess->fe); /* one more valid request for this FE */
Willy Tarreaud9b587f2010-02-26 10:05:55 +0100[diff] [blame]1886
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]1887 if (txn->flags & TX_WAIT_NEXT_RQ) {
1888 /* kill the pending keep-alive timeout */
1889 txn->flags &= ~TX_WAIT_NEXT_RQ;
1890 req->analyse_exp = TICK_ETERNITY;
1891 }
1892
1893
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1894 /* Maybe we found in invalid header name while we were configured not
1895 * to block on that, so we have to capture it now.
1896 */
1897 if (unlikely(msg->err_pos >= 0))
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1898 http_capture_bad_message(sess->fe, &sess->fe->invalid_req, s, msg, msg->err_state, sess->fe);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]1899
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1900 /*
1901 * 1: identify the method
1902 */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1903 txn->meth = find_http_meth(ci_head(req), msg->sl.rq.m_l);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1904
1905 /* we can make use of server redirect on GET and HEAD */
1906 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1907 s->flags |= SF_REDIRECTABLE;
Willy Tarreau91659792017-11-10 19:38:10 +0100[diff] [blame]1908 else if (txn->meth == HTTP_METH_OTHER &&
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1909 msg->sl.rq.m_l == 3 && memcmp(ci_head(req), "PRI", 3) == 0) {
Willy Tarreau91659792017-11-10 19:38:10 +0100[diff] [blame]1910 /* PRI is reserved for the HTTP/2 preface */
1911 msg->err_pos = 0;
1912 goto return_bad_req;
1913 }
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200[diff] [blame]1914
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1915 /*
1916 * 2: check if the URI matches the monitor_uri.
1917 * We have to do this for every request which gets in, because
1918 * the monitor-uri is defined by the frontend.
1919 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1920 if (unlikely((sess->fe->monitor_uri_len != 0) &&
1921 (sess->fe->monitor_uri_len == msg->sl.rq.u_l) &&
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1922 !memcmp(ci_head(req) + msg->sl.rq.u,
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1923 sess->fe->monitor_uri,
1924 sess->fe->monitor_uri_len))) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1925 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1926 * We have found the monitor URI
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1927 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1928 struct acl_cond *cond;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1929
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1930 s->flags |= SF_MONITOR;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1931 HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1932
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1933 /* Check if we want to fail this monitor request or not */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1934 list_for_each_entry(cond, &sess->fe->mon_fail_cond, list) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]1935 int ret = acl_exec_cond(cond, sess->fe, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]1936
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1937 ret = acl_pass(ret);
1938 if (cond->pol == ACL_COND_UNLESS)
1939 ret = !ret;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1940
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1941 if (ret) {
1942 /* we fail this request, let's return 503 service unavail */
1943 txn->status = 503;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1944 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1945 if (!(s->flags & SF_ERR_MASK))
1946 s->flags |= SF_ERR_LOCAL; /* we don't want a real error here */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1947 goto return_prx_cond;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1948 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1949 }
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100[diff] [blame]1950
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1951 /* nothing to fail, let's reply normaly */
1952 txn->status = 200;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1953 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1954 if (!(s->flags & SF_ERR_MASK))
1955 s->flags |= SF_ERR_LOCAL; /* we don't want a real error here */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1956 goto return_prx_cond;
1957 }
1958
1959 /*
1960 * 3: Maybe we have to copy the original REQURI for the logs ?
1961 * Note: we cannot log anymore if the request has been
1962 * classified as invalid.
1963 */
1964 if (unlikely(s->logs.logwait & LW_REQ)) {
1965 /* we have a complete HTTP request that we must log */
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]1966 if ((txn->uri = pool_alloc(pool_head_requri)) != NULL) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1967 int urilen = msg->sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1968
Stéphane Cottin23e9e932017-05-18 08:58:41 +0200[diff] [blame]1969 if (urilen >= global.tune.requri_len )
1970 urilen = global.tune.requri_len - 1;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1971 memcpy(txn->uri, ci_head(req), urilen);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1972 txn->uri[urilen] = 0;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1973
Willy Tarreaud79a3b22012-12-28 09:40:16 +0100[diff] [blame]1974 if (!(s->logs.logwait &= ~(LW_REQ|LW_INIT)))
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1975 s->do_log(s);
1976 } else {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]1977 ha_alert("HTTP logging : out of memory.\n");
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1978 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1979 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]1980
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]1981 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
1982 * exactly one digit "." one digit. This check may be disabled using
1983 * option accept-invalid-http-request.
1984 */
1985 if (!(sess->fe->options2 & PR_O2_REQBUG_OK)) {
1986 if (msg->sl.rq.v_l != 8) {
1987 msg->err_pos = msg->sl.rq.v;
1988 goto return_bad_req;
1989 }
1990
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]1991 if (ci_head(req)[msg->sl.rq.v + 4] != '/' ||
1992 !isdigit((unsigned char)ci_head(req)[msg->sl.rq.v + 5]) ||
1993 ci_head(req)[msg->sl.rq.v + 6] != '.' ||
1994 !isdigit((unsigned char)ci_head(req)[msg->sl.rq.v + 7])) {
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]1995 msg->err_pos = msg->sl.rq.v + 4;
1996 goto return_bad_req;
1997 }
1998 }
Willy Tarreau13317662015-05-01 13:47:08 +0200[diff] [blame]1999 else {
2000 /* 4. We may have to convert HTTP/0.9 requests to HTTP/1.0 */
2001 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
2002 goto return_bad_req;
2003 }
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]2004
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2005 /* ... and check if the request is HTTP/1.1 or above */
2006 if ((msg->sl.rq.v_l == 8) &&
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2007 ((ci_head(req)[msg->sl.rq.v + 5] > '1') ||
2008 ((ci_head(req)[msg->sl.rq.v + 5] == '1') &&
2009 (ci_head(req)[msg->sl.rq.v + 7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2010 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2011
2012 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]2013 txn->flags &= ~(TX_HDR_CONN_PRS | TX_HDR_CONN_CLO | TX_HDR_CONN_KAL | TX_HDR_CONN_UPG);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2014
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2015 /* if the frontend has "option http-use-proxy-header", we'll check if
2016 * we have what looks like a proxied connection instead of a connection,
2017 * and in this case set the TX_USE_PX_CONN flag to use Proxy-connection.
2018 * Note that this is *not* RFC-compliant, however browsers and proxies
2019 * happen to do that despite being non-standard :-(
2020 * We consider that a request not beginning with either '/' or '*' is
2021 * a proxied connection, which covers both "scheme://location" and
2022 * CONNECT ip:port.
2023 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2024 if ((sess->fe->options2 & PR_O2_USE_PXHDR) &&
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2025 ci_head(req)[msg->sl.rq.u] != '/' && ci_head(req)[msg->sl.rq.u] != '*')
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2026 txn->flags |= TX_USE_PX_CONN;
2027
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2028 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2029 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2030
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2031 /* 5: we may need to capture headers */
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]2032 if (unlikely((s->logs.logwait & LW_REQHDR) && s->req_cap))
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2033 capture_headers(ci_head(req), &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]2034 s->req_cap, sess->fe->req_cap);
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]2035
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2036 /* 6: determine the transfer-length according to RFC2616 #4.4, updated
2037 * by RFC7230#3.3.3 :
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2038 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2039 * The length of a message body is determined by one of the following
2040 * (in order of precedence):
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2041 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2042 * 1. Any response to a HEAD request and any response with a 1xx
2043 * (Informational), 204 (No Content), or 304 (Not Modified) status
2044 * code is always terminated by the first empty line after the
2045 * header fields, regardless of the header fields present in the
2046 * message, and thus cannot contain a message body.
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2047 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2048 * 2. Any 2xx (Successful) response to a CONNECT request implies that
2049 * the connection will become a tunnel immediately after the empty
2050 * line that concludes the header fields. A client MUST ignore any
2051 * Content-Length or Transfer-Encoding header fields received in
2052 * such a message.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2053 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2054 * 3. If a Transfer-Encoding header field is present and the chunked
2055 * transfer coding (Section 4.1) is the final encoding, the message
2056 * body length is determined by reading and decoding the chunked
2057 * data until the transfer coding indicates the data is complete.
2058 *
2059 * If a Transfer-Encoding header field is present in a response and
2060 * the chunked transfer coding is not the final encoding, the
2061 * message body length is determined by reading the connection until
2062 * it is closed by the server. If a Transfer-Encoding header field
2063 * is present in a request and the chunked transfer coding is not
2064 * the final encoding, the message body length cannot be determined
2065 * reliably; the server MUST respond with the 400 (Bad Request)
2066 * status code and then close the connection.
2067 *
2068 * If a message is received with both a Transfer-Encoding and a
2069 * Content-Length header field, the Transfer-Encoding overrides the
2070 * Content-Length. Such a message might indicate an attempt to
2071 * perform request smuggling (Section 9.5) or response splitting
2072 * (Section 9.4) and ought to be handled as an error. A sender MUST
2073 * remove the received Content-Length field prior to forwarding such
2074 * a message downstream.
2075 *
2076 * 4. If a message is received without Transfer-Encoding and with
2077 * either multiple Content-Length header fields having differing
2078 * field-values or a single Content-Length header field having an
2079 * invalid value, then the message framing is invalid and the
2080 * recipient MUST treat it as an unrecoverable error. If this is a
2081 * request message, the server MUST respond with a 400 (Bad Request)
2082 * status code and then close the connection. If this is a response
2083 * message received by a proxy, the proxy MUST close the connection
2084 * to the server, discard the received response, and send a 502 (Bad
2085 * Gateway) response to the client. If this is a response message
2086 * received by a user agent, the user agent MUST close the
2087 * connection to the server and discard the received response.
2088 *
2089 * 5. If a valid Content-Length header field is present without
2090 * Transfer-Encoding, its decimal value defines the expected message
2091 * body length in octets. If the sender closes the connection or
2092 * the recipient times out before the indicated number of octets are
2093 * received, the recipient MUST consider the message to be
2094 * incomplete and close the connection.
2095 *
2096 * 6. If this is a request message and none of the above are true, then
2097 * the message body length is zero (no message body is present).
2098 *
2099 * 7. Otherwise, this is a response message without a declared message
2100 * body length, so the message body length is determined by the
2101 * number of octets received prior to the server closing the
2102 * connection.
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2103 */
2104
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2105 ctx.idx = 0;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2106 /* set TE_CHNK and XFER_LEN only if "chunked" is seen last */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2107 while (http_find_header2("Transfer-Encoding", 17, ci_head(req), &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2108 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]2109 msg->flags |= HTTP_MSGF_TE_CHNK;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2110 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2111 /* chunked not last, return badreq */
2112 goto return_bad_req;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2113 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2114 }
2115
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]2116 /* Chunked requests must have their content-length removed */
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2117 ctx.idx = 0;
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]2118 if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2119 while (http_find_header2("Content-Length", 14, ci_head(req), &txn->hdr_idx, &ctx))
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]2120 http_remove_header2(msg, &txn->hdr_idx, &ctx);
2121 }
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2122 else while (http_find_header2("Content-Length", 14, ci_head(req), &txn->hdr_idx, &ctx)) {
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2123 signed long long cl;
2124
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2125 if (!ctx.vlen) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2126 msg->err_pos = ctx.line + ctx.val - ci_head(req);
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2127 goto return_bad_req;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2128 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2129
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2130 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2131 msg->err_pos = ctx.line + ctx.val - ci_head(req);
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2132 goto return_bad_req; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2133 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2134
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2135 if (cl < 0) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2136 msg->err_pos = ctx.line + ctx.val - ci_head(req);
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2137 goto return_bad_req;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2138 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2139
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2140 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2141 msg->err_pos = ctx.line + ctx.val - ci_head(req);
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2142 goto return_bad_req; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2143 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2144
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]2145 msg->flags |= HTTP_MSGF_CNT_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]2146 msg->body_len = msg->chunk_len = cl;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2147 }
2148
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2149 /* even bodyless requests have a known length */
2150 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2151
Willy Tarreau179085c2014-04-28 16:48:56 +0200[diff] [blame]2152 /* Until set to anything else, the connection mode is set as Keep-Alive. It will
2153 * only change if both the request and the config reference something else.
2154 * Option httpclose by itself sets tunnel mode where headers are mangled.
2155 * However, if another mode is set, it will affect it (eg: server-close/
2156 * keep-alive + httpclose = close). Note that we avoid to redo the same work
2157 * if FE and BE have the same settings (common). The method consists in
2158 * checking if options changed between the two calls (implying that either
2159 * one is non-null, or one of them is non-null and we are there for the first
2160 * time.
2161 */
2162 if (!(txn->flags & TX_HDR_CONN_PRS) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2163 ((sess->fe->options & PR_O_HTTP_MODE) != (s->be->options & PR_O_HTTP_MODE)))
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2164 http_adjust_conn_mode(s, txn, msg);
Willy Tarreau179085c2014-04-28 16:48:56 +0200[diff] [blame]2165
Willy Tarreau9fbe18e2015-05-01 22:42:08 +0200[diff] [blame]2166 /* we may have to wait for the request's body */
2167 if ((s->be->options & PR_O_WREQ_BODY) &&
2168 (msg->body_len || (msg->flags & HTTP_MSGF_TE_CHNK)))
2169 req->analysers |= AN_REQ_HTTP_BODY;
2170
Willy Tarreau83ece462017-12-21 15:13:09 +0100[diff] [blame]2171 /*
2172 * RFC7234#4:
2173 * A cache MUST write through requests with methods
2174 * that are unsafe (Section 4.2.1 of [RFC7231]) to
2175 * the origin server; i.e., a cache is not allowed
2176 * to generate a reply to such a request before
2177 * having forwarded the request and having received
2178 * a corresponding response.
2179 *
2180 * RFC7231#4.2.1:
2181 * Of the request methods defined by this
2182 * specification, the GET, HEAD, OPTIONS, and TRACE
2183 * methods are defined to be safe.
2184 */
2185 if (likely(txn->meth == HTTP_METH_GET ||
2186 txn->meth == HTTP_METH_HEAD ||
2187 txn->meth == HTTP_METH_OPTIONS ||
2188 txn->meth == HTTP_METH_TRACE))
2189 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
2190
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2191 /* end of job, return OK */
Willy Tarreau3a816292009-07-07 10:55:49 +0200[diff] [blame]2192 req->analysers &= ~an_bit;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2193 req->analyse_exp = TICK_ETERNITY;
2194 return 1;
2195
2196 return_bad_req:
2197 /* We centralize bad requests processing here */
2198 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
2199 /* we detected a parsing error. We want to archive this request
2200 * in the dedicated proxy area for later troubleshooting.
2201 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]2202 http_capture_bad_message(sess->fe, &sess->fe->invalid_req, s, msg, msg->err_state, sess->fe);
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2203 }
2204
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2205 txn->req.err_state = txn->req.msg_state;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2206 txn->req.msg_state = HTTP_MSG_ERROR;
2207 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]2208 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]2209
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]2210 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]2211 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]2212 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2213
2214 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2215 if (!(s->flags & SF_ERR_MASK))
2216 s->flags |= SF_ERR_PRXCOND;
2217 if (!(s->flags & SF_FINST_MASK))
2218 s->flags |= SF_FINST_R;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2219
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]2220 req->analysers &= AN_REQ_FLT_END;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2221 req->analyse_exp = TICK_ETERNITY;
2222 return 0;
2223}
2224
Willy Tarreau4f8a83c2012-06-04 00:26:23 +0200[diff] [blame]2225
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2226/* This function prepares an applet to handle the stats. It can deal with the
2227 * "100-continue" expectation, check that admin rules are met for POST requests,
2228 * and program a response message if something was unexpected. It cannot fail
2229 * and always relies on the stats applet to complete the job. It does not touch
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2230 * analysers nor counters, which are left to the caller. It does not touch
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2231 * s->target which is supposed to already point to the stats applet. The caller
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2232 * is expected to have already assigned an appctx to the stream.
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2233 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2234int http_handle_stats(struct stream *s, struct channel *req)
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2235{
2236 struct stats_admin_rule *stats_admin_rule;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]2237 struct stream_interface *si = &s->si[1];
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2238 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2239 struct http_txn *txn = s->txn;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2240 struct http_msg *msg = &txn->req;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2241 struct uri_auth *uri_auth = s->be->uri_auth;
2242 const char *uri, *h, *lookup;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2243 struct appctx *appctx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2244
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2245 appctx = si_appctx(si);
2246 memset(&appctx->ctx.stats, 0, sizeof(appctx->ctx.stats));
2247 appctx->st1 = appctx->st2 = 0;
2248 appctx->ctx.stats.st_code = STAT_STATUS_INIT;
2249 appctx->ctx.stats.flags |= STAT_FMT_HTML; /* assume HTML mode by default */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2250 if ((msg->flags & HTTP_MSGF_VER_11) && (s->txn->meth != HTTP_METH_HEAD))
Willy Tarreauaf3cf702014-04-22 22:19:53 +0200[diff] [blame]2251 appctx->ctx.stats.flags |= STAT_CHUNKED;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2252
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2253 uri = ci_head(msg->chn) + msg->sl.rq.u;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2254 lookup = uri + uri_auth->uri_len;
2255
2256 for (h = lookup; h <= uri + msg->sl.rq.u_l - 3; h++) {
2257 if (memcmp(h, ";up", 3) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2258 appctx->ctx.stats.flags |= STAT_HIDE_DOWN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2259 break;
2260 }
2261 }
2262
2263 if (uri_auth->refresh) {
2264 for (h = lookup; h <= uri + msg->sl.rq.u_l - 10; h++) {
2265 if (memcmp(h, ";norefresh", 10) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2266 appctx->ctx.stats.flags |= STAT_NO_REFRESH;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2267 break;
2268 }
2269 }
2270 }
2271
2272 for (h = lookup; h <= uri + msg->sl.rq.u_l - 4; h++) {
2273 if (memcmp(h, ";csv", 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2274 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2275 break;
2276 }
2277 }
2278
Willy Tarreau1e62df92016-01-11 18:57:53 +0100[diff] [blame]2279 for (h = lookup; h <= uri + msg->sl.rq.u_l - 6; h++) {
2280 if (memcmp(h, ";typed", 6) == 0) {
2281 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
2282 appctx->ctx.stats.flags |= STAT_FMT_TYPED;
2283 break;
2284 }
2285 }
2286
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2287 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
2288 if (memcmp(h, ";st=", 4) == 0) {
2289 int i;
2290 h += 4;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2291 appctx->ctx.stats.st_code = STAT_STATUS_UNKN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2292 for (i = STAT_STATUS_INIT + 1; i < STAT_STATUS_SIZE; i++) {
2293 if (strncmp(stat_status_codes[i], h, 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2294 appctx->ctx.stats.st_code = i;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2295 break;
2296 }
2297 }
2298 break;
2299 }
2300 }
2301
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2302 appctx->ctx.stats.scope_str = 0;
2303 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2304 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
2305 if (memcmp(h, STAT_SCOPE_INPUT_NAME "=", strlen(STAT_SCOPE_INPUT_NAME) + 1) == 0) {
2306 int itx = 0;
2307 const char *h2;
2308 char scope_txt[STAT_SCOPE_TXT_MAXLEN + 1];
2309 const char *err;
2310
2311 h += strlen(STAT_SCOPE_INPUT_NAME) + 1;
2312 h2 = h;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2313 appctx->ctx.stats.scope_str = h2 - ci_head(msg->chn);
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2314 while (*h != ';' && *h != '\0' && *h != '&' && *h != ' ' && *h != '\n') {
2315 itx++;
2316 h++;
2317 }
2318
2319 if (itx > STAT_SCOPE_TXT_MAXLEN)
2320 itx = STAT_SCOPE_TXT_MAXLEN;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2321 appctx->ctx.stats.scope_len = itx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2322
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2323 /* scope_txt = search query, appctx->ctx.stats.scope_len is always <= STAT_SCOPE_TXT_MAXLEN */
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2324 memcpy(scope_txt, h2, itx);
2325 scope_txt[itx] = '\0';
2326 err = invalid_char(scope_txt);
2327 if (err) {
2328 /* bad char in search text => clear scope */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2329 appctx->ctx.stats.scope_str = 0;
2330 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2331 }
2332 break;
2333 }
2334 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2335
2336 /* now check whether we have some admin rules for this request */
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2337 list_for_each_entry(stats_admin_rule, &uri_auth->admin_rules, list) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2338 int ret = 1;
2339
2340 if (stats_admin_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2341 ret = acl_exec_cond(stats_admin_rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2342 ret = acl_pass(ret);
2343 if (stats_admin_rule->cond->pol == ACL_COND_UNLESS)
2344 ret = !ret;
2345 }
2346
2347 if (ret) {
2348 /* no rule, or the rule matches */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2349 appctx->ctx.stats.flags |= STAT_ADMIN;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2350 break;
2351 }
2352 }
2353
2354 /* Was the status page requested with a POST ? */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]2355 if (unlikely(txn->meth == HTTP_METH_POST && txn->req.body_len > 0)) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2356 if (appctx->ctx.stats.flags & STAT_ADMIN) {
Willy Tarreaucfe7fdd2014-04-26 22:08:32 +0200[diff] [blame]2357 /* we'll need the request body, possibly after sending 100-continue */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]2358 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE)
2359 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2360 appctx->st0 = STAT_HTTP_POST;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2361 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2362 else {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2363 appctx->ctx.stats.st_code = STAT_STATUS_DENY;
2364 appctx->st0 = STAT_HTTP_LAST;
de Lafond Guillaume88c278f2013-04-15 19:27:10 +0200[diff] [blame]2365 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2366 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2367 else {
2368 /* So it was another method (GET/HEAD) */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2369 appctx->st0 = STAT_HTTP_HEAD;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2370 }
2371
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2372 s->task->nice = -32; /* small boost for HTTP statistics */
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2373 return 1;
2374}
2375
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2376/* Sets the TOS header in IPv4 and the traffic class header in IPv6 packets
2377 * (as per RFC3260 #4 and BCP37 #4.2 and #5.2).
2378 */
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2379void inet_set_tos(int fd, const struct sockaddr_storage *from, int tos)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2380{
2381#ifdef IP_TOS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2382 if (from->ss_family == AF_INET)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2383 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
2384#endif
2385#ifdef IPV6_TCLASS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2386 if (from->ss_family == AF_INET6) {
2387 if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)from)->sin6_addr))
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2388 /* v4-mapped addresses need IP_TOS */
2389 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
2390 else
2391 setsockopt(fd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof(tos));
2392 }
2393#endif
2394}
2395
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2396int http_transform_header_str(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2397 const char* name, unsigned int name_len,
2398 const char *str, struct my_regex *re,
2399 int action)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2400{
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2401 struct hdr_ctx ctx;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2402 char *buf = ci_head(msg->chn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2403 struct hdr_idx *idx = &s->txn->hdr_idx;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2404 int (*http_find_hdr_func)(const char *name, int len, char *sol,
2405 struct hdr_idx *idx, struct hdr_ctx *ctx);
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]2406 struct buffer *output = get_trash_chunk();
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2407
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2408 ctx.idx = 0;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2409
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2410 /* Choose the header browsing function. */
2411 switch (action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2412 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2413 http_find_hdr_func = http_find_header2;
2414 break;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2415 case ACT_HTTP_REPLACE_HDR:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2416 http_find_hdr_func = http_find_full_header2;
2417 break;
2418 default: /* impossible */
2419 return -1;
2420 }
2421
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2422 while (http_find_hdr_func(name, name_len, buf, idx, &ctx)) {
2423 struct hdr_idx_elem *hdr = idx->v + ctx.idx;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2424 int delta;
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2425 char *val = ctx.line + ctx.val;
2426 char* val_end = val + ctx.vlen;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2427
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2428 if (!regex_exec_match2(re, val, val_end-val, MAX_MATCH, pmatch, 0))
2429 continue;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2430
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2431 output->data = exp_replace(output->area, output->size, val,
2432 str, pmatch);
2433 if (output->data == -1)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2434 return -1;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2435
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2436 delta = b_rep_blk(&msg->chn->buf, val, val_end, output->area,
2437 output->data);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2438
2439 hdr->len += delta;
2440 http_msg_move_end(msg, delta);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2441
2442 /* Adjust the length of the current value of the index. */
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2443 ctx.vlen += delta;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2444 }
2445
2446 return 0;
2447}
2448
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2449static int http_transform_header(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2450 const char* name, unsigned int name_len,
2451 struct list *fmt, struct my_regex *re,
2452 int action)
2453{
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]2454 struct buffer *replace;
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2455 int ret = -1;
2456
2457 replace = alloc_trash_chunk();
2458 if (!replace)
2459 goto leave;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2460
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2461 replace->data = build_logline(s, replace->area, replace->size, fmt);
2462 if (replace->data >= replace->size - 1)
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2463 goto leave;
2464
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2465 ret = http_transform_header_str(s, msg, name, name_len, replace->area,
2466 re, action);
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2467
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2468 leave:
2469 free_trash_chunk(replace);
2470 return ret;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2471}
2472
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2473/* Executes the http-request rules <rules> for stream <s>, proxy <px> and
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2474 * transaction <txn>. Returns the verdict of the first rule that prevents
2475 * further processing of the request (auth, deny, ...), and defaults to
2476 * HTTP_RULE_RES_STOP if it executed all rules or stopped on an allow, or
2477 * HTTP_RULE_RES_CONT if the last rule was reached. It may set the TX_CLTARPIT
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2478 * on txn->flags if it encounters a tarpit rule. If <deny_status> is not NULL
2479 * and a deny/tarpit rule is matched, it will be filled with this rule's deny
2480 * status.
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2481 */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2482enum rule_result
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2483http_req_get_intercept_rule(struct proxy *px, struct list *rules, struct stream *s, int *deny_status)
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2484{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2485 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2486 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]2487 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]2488 struct act_rule *rule;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]2489 struct hdr_ctx ctx;
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]2490 const char *auth_realm;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2491 int act_flags = 0;
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2492 int len;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2493
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2494 /* If "the current_rule_list" match the executed rule list, we are in
2495 * resume condition. If a resume is needed it is always in the action
2496 * and never in the ACL or converters. In this case, we initialise the
2497 * current rule, and go to the action execution point.
2498 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2499 if (s->current_rule) {
2500 rule = s->current_rule;
2501 s->current_rule = NULL;
2502 if (s->current_rule_list == rules)
2503 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2504 }
2505 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2506
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2507 list_for_each_entry(rule, rules, list) {
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2508
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2509 /* check optional condition */
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2510 if (rule->cond) {
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2511 int ret;
2512
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2513 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2514 ret = acl_pass(ret);
2515
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2516 if (rule->cond->pol == ACL_COND_UNLESS)
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2517 ret = !ret;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2518
2519 if (!ret) /* condition not matched */
2520 continue;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2521 }
2522
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2523 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2524resume_execution:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2525 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2526 case ACT_ACTION_ALLOW:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2527 return HTTP_RULE_RES_STOP;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2528
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2529 case ACT_ACTION_DENY:
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2530 if (deny_status)
2531 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2532 return HTTP_RULE_RES_DENY;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2533
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2534 case ACT_HTTP_REQ_TARPIT:
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]2535 txn->flags |= TX_CLTARPIT;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2536 if (deny_status)
2537 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2538 return HTTP_RULE_RES_DENY;
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]2539
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2540 case ACT_HTTP_REQ_AUTH:
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]2541 /* Auth might be performed on regular http-req rules as well as on stats */
2542 auth_realm = rule->arg.auth.realm;
2543 if (!auth_realm) {
2544 if (px->uri_auth && rules == &px->uri_auth->http_req_rules)
2545 auth_realm = STATS_DEFAULT_REALM;
2546 else
2547 auth_realm = px->id;
2548 }
2549 /* send 401/407 depending on whether we use a proxy or not. We still
2550 * count one error, because normal browsing won't significantly
2551 * increase the counter but brute force attempts will.
2552 */
2553 chunk_printf(&trash, (txn->flags & TX_USE_PX_CONN) ? HTTP_407_fmt : HTTP_401_fmt, auth_realm);
2554 txn->status = (txn->flags & TX_USE_PX_CONN) ? 407 : 401;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2555 http_reply_and_close(s, txn->status, &trash);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2556 stream_inc_http_err_ctr(s);
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2557 return HTTP_RULE_RES_ABRT;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2558
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2559 case ACT_HTTP_REDIR:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2560 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
2561 return HTTP_RULE_RES_BADREQ;
2562 return HTTP_RULE_RES_DONE;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]2563
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2564 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]2565 s->task->nice = rule->arg.nice;
2566 break;
2567
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2568 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2569 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2570 inet_set_tos(cli_conn->handle.fd, &cli_conn->addr.from, rule->arg.tos);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]2571 break;
2572
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2573 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2574#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2575 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2576 setsockopt(cli_conn->handle.fd, SOL_SOCKET, SO_MARK, &rule->arg.mark, sizeof(rule->arg.mark));
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2577#endif
2578 break;
2579
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2580 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]2581 s->logs.level = rule->arg.loglevel;
2582 break;
2583
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2584 case ACT_HTTP_REPLACE_HDR:
2585 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2586 if (http_transform_header(s, &txn->req, rule->arg.hdr_add.name,
2587 rule->arg.hdr_add.name_len,
2588 &rule->arg.hdr_add.fmt,
2589 &rule->arg.hdr_add.re, rule->action))
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2590 return HTTP_RULE_RES_BADREQ;
2591 break;
2592
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2593 case ACT_HTTP_DEL_HDR:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2594 ctx.idx = 0;
2595 /* remove all occurrences of the header */
2596 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2597 ci_head(txn->req.chn), &txn->hdr_idx, &ctx)) {
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2598 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]2599 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2600 break;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2601
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2602 case ACT_HTTP_SET_HDR:
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2603 case ACT_HTTP_ADD_HDR: {
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2604 /* The scope of the trash buffer must be limited to this function. The
2605 * build_logline() function can execute a lot of other function which
2606 * can use the trash buffer. So for limiting the scope of this global
2607 * buffer, we build first the header value using build_logline, and
2608 * after we store the header name.
2609 */
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]2610 struct buffer *replace;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2611
2612 replace = alloc_trash_chunk();
2613 if (!replace)
2614 return HTTP_RULE_RES_BADREQ;
2615
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2616 len = rule->arg.hdr_add.name_len + 2,
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2617 len += build_logline(s, replace->area + len,
2618 replace->size - len,
2619 &rule->arg.hdr_add.fmt);
2620 memcpy(replace->area, rule->arg.hdr_add.name,
2621 rule->arg.hdr_add.name_len);
2622 replace->area[rule->arg.hdr_add.name_len] = ':';
2623 replace->area[rule->arg.hdr_add.name_len + 1] = ' ';
2624 replace->data = len;
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2625
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2626 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2627 /* remove all occurrences of the header */
2628 ctx.idx = 0;
2629 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2630 ci_head(txn->req.chn), &txn->hdr_idx, &ctx)) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2631 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
2632 }
2633 }
2634
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2635 if (http_header_add_tail2(&txn->req, &txn->hdr_idx, replace->area, replace->data) < 0) {
Tim Duesterhus3fd19732018-05-27 20:35:08 +0200[diff] [blame]2636 static unsigned char rate_limit = 0;
2637
2638 if ((rate_limit++ & 255) == 0) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2639 replace->area[rule->arg.hdr_add.name_len] = 0;
2640 send_log(px, LOG_WARNING, "Proxy %s failed to add or set the request header '%s' for request #%u. You might need to increase tune.maxrewrite.", px->id,
2641 replace->area, s->uniq_id);
Tim Duesterhus3fd19732018-05-27 20:35:08 +0200[diff] [blame]2642 }
2643
2644 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_rewrites, 1);
2645 if (sess->fe != s->be)
2646 HA_ATOMIC_ADD(&s->be->be_counters.failed_rewrites, 1);
2647 if (sess->listener->counters)
2648 HA_ATOMIC_ADD(&sess->listener->counters->failed_rewrites, 1);
2649 }
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2650
2651 free_trash_chunk(replace);
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2652 break;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2653 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2654
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2655 case ACT_HTTP_DEL_ACL:
2656 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2657 struct pat_ref *ref;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]2658 struct buffer *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2659
2660 /* collect reference */
2661 ref = pat_ref_lookup(rule->arg.map.ref);
2662 if (!ref)
2663 continue;
2664
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2665 /* allocate key */
2666 key = alloc_trash_chunk();
2667 if (!key)
2668 return HTTP_RULE_RES_BADREQ;
2669
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2670 /* collect key */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2671 key->data = build_logline(s, key->area, key->size,
2672 &rule->arg.map.key);
2673 key->area[key->data] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2674
2675 /* perform update */
2676 /* returned code: 1=ok, 0=ko */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2677 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2678 pat_ref_delete(ref, key->area);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2679 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2680
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2681 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2682 break;
2683 }
2684
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2685 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2686 struct pat_ref *ref;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]2687 struct buffer *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2688
2689 /* collect reference */
2690 ref = pat_ref_lookup(rule->arg.map.ref);
2691 if (!ref)
2692 continue;
2693
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2694 /* allocate key */
2695 key = alloc_trash_chunk();
2696 if (!key)
2697 return HTTP_RULE_RES_BADREQ;
2698
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2699 /* collect key */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2700 key->data = build_logline(s, key->area, key->size,
2701 &rule->arg.map.key);
2702 key->area[key->data] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2703
2704 /* perform update */
2705 /* add entry only if it does not already exist */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2706 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2707 if (pat_ref_find_elt(ref, key->area) == NULL)
2708 pat_ref_add(ref, key->area, NULL, NULL);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2709 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2710
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2711 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2712 break;
2713 }
2714
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2715 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2716 struct pat_ref *ref;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]2717 struct buffer *key, *value;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2718
2719 /* collect reference */
2720 ref = pat_ref_lookup(rule->arg.map.ref);
2721 if (!ref)
2722 continue;
2723
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2724 /* allocate key */
2725 key = alloc_trash_chunk();
2726 if (!key)
2727 return HTTP_RULE_RES_BADREQ;
2728
2729 /* allocate value */
2730 value = alloc_trash_chunk();
2731 if (!value) {
2732 free_trash_chunk(key);
2733 return HTTP_RULE_RES_BADREQ;
2734 }
2735
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2736 /* collect key */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2737 key->data = build_logline(s, key->area, key->size,
2738 &rule->arg.map.key);
2739 key->area[key->data] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2740
2741 /* collect value */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2742 value->data = build_logline(s, value->area,
2743 value->size,
2744 &rule->arg.map.value);
2745 value->area[value->data] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2746
2747 /* perform update */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2748 if (pat_ref_find_elt(ref, key->area) != NULL)
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2749 /* update entry if it exists */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2750 pat_ref_set(ref, key->area, value->area, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2751 else
2752 /* insert a new entry */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2753 pat_ref_add(ref, key->area, value->area, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2754
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2755 free_trash_chunk(key);
2756 free_trash_chunk(value);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2757 break;
2758 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]2759
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]2760 case ACT_CUSTOM:
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]2761 if ((s->req.flags & CF_READ_ERROR) ||
2762 ((s->req.flags & (CF_SHUTR|CF_READ_NULL)) &&
2763 !(s->si[0].flags & SI_FL_CLEAN_ABRT) &&
2764 (px->options & PR_O_ABRT_CLOSE)))
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2765 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]2766
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2767 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]2768 case ACT_RET_ERR:
2769 case ACT_RET_CONT:
2770 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]2771 case ACT_RET_STOP:
2772 return HTTP_RULE_RES_DONE;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]2773 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2774 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2775 return HTTP_RULE_RES_YIELD;
2776 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]2777 break;
2778
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2779 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2780 /* Note: only the first valid tracking parameter of each
2781 * applies.
2782 */
2783
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2784 if (stkctr_entry(&s->stkctr[trk_idx(rule->action)]) == NULL) {
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2785 struct stktable *t;
2786 struct stksess *ts;
2787 struct stktable_key *key;
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]2788 void *ptr1, *ptr2;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2789
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]2790 t = rule->arg.trk_ctr.table.t;
2791 key = stktable_fetch_key(t, s->be, sess, s, SMP_OPT_DIR_REQ | SMP_OPT_FINAL, rule->arg.trk_ctr.expr, NULL);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2792
2793 if (key && (ts = stktable_get_entry(t, key))) {
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2794 stream_track_stkctr(&s->stkctr[trk_idx(rule->action)], t, ts);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2795
2796 /* let's count a new HTTP request as it's the first time we do it */
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]2797 ptr1 = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
2798 ptr2 = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
2799 if (ptr1 || ptr2) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2800 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2801
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]2802 if (ptr1)
2803 stktable_data_cast(ptr1, http_req_cnt)++;
2804
2805 if (ptr2)
2806 update_freq_ctr_period(&stktable_data_cast(ptr2, http_req_rate),
2807 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
2808
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2809 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun0fed0b02017-11-29 16:15:07 +0100[diff] [blame]2810
2811 /* If data was modified, we need to touch to re-schedule sync */
2812 stktable_touch_local(t, ts, 0);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]2813 }
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2814
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2815 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2816 if (sess->fe != s->be)
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2817 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2818 }
2819 }
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]2820 break;
2821
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]2822 /* other flags exists, but normaly, they never be matched. */
2823 default:
2824 break;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2825 }
2826 }
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2827
2828 /* we reached the end of the rules, nothing to report */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2829 return HTTP_RULE_RES_CONT;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2830}
2831
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]2832
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]2833/* Executes the http-response rules <rules> for stream <s> and proxy <px>. It
2834 * returns one of 5 possible statuses: HTTP_RULE_RES_CONT, HTTP_RULE_RES_STOP,
2835 * HTTP_RULE_RES_DONE, HTTP_RULE_RES_YIELD, or HTTP_RULE_RES_BADREQ. If *CONT
2836 * is returned, the process can continue the evaluation of next rule list. If
2837 * *STOP or *DONE is returned, the process must stop the evaluation. If *BADREQ
2838 * is returned, it means the operation could not be processed and a server error
2839 * must be returned. It may set the TX_SVDENY on txn->flags if it encounters a
2840 * deny rule. If *YIELD is returned, the caller must call again the function
2841 * with the same context.
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2842 */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2843static enum rule_result
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2844http_res_get_intercept_rule(struct proxy *px, struct list *rules, struct stream *s)
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2845{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2846 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2847 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]2848 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]2849 struct act_rule *rule;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2850 struct hdr_ctx ctx;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2851 int act_flags = 0;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2852
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2853 /* If "the current_rule_list" match the executed rule list, we are in
2854 * resume condition. If a resume is needed it is always in the action
2855 * and never in the ACL or converters. In this case, we initialise the
2856 * current rule, and go to the action execution point.
2857 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2858 if (s->current_rule) {
2859 rule = s->current_rule;
2860 s->current_rule = NULL;
2861 if (s->current_rule_list == rules)
2862 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2863 }
2864 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2865
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2866 list_for_each_entry(rule, rules, list) {
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2867
2868 /* check optional condition */
2869 if (rule->cond) {
2870 int ret;
2871
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2872 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2873 ret = acl_pass(ret);
2874
2875 if (rule->cond->pol == ACL_COND_UNLESS)
2876 ret = !ret;
2877
2878 if (!ret) /* condition not matched */
2879 continue;
2880 }
2881
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2882 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2883resume_execution:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2884 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2885 case ACT_ACTION_ALLOW:
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2886 return HTTP_RULE_RES_STOP; /* "allow" rules are OK */
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2887
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2888 case ACT_ACTION_DENY:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2889 txn->flags |= TX_SVDENY;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2890 return HTTP_RULE_RES_STOP;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2891
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2892 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]2893 s->task->nice = rule->arg.nice;
2894 break;
2895
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2896 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2897 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2898 inet_set_tos(cli_conn->handle.fd, &cli_conn->addr.from, rule->arg.tos);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]2899 break;
2900
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2901 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2902#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2903 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2904 setsockopt(cli_conn->handle.fd, SOL_SOCKET, SO_MARK, &rule->arg.mark, sizeof(rule->arg.mark));
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2905#endif
2906 break;
2907
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2908 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]2909 s->logs.level = rule->arg.loglevel;
2910 break;
2911
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2912 case ACT_HTTP_REPLACE_HDR:
2913 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2914 if (http_transform_header(s, &txn->rsp, rule->arg.hdr_add.name,
2915 rule->arg.hdr_add.name_len,
2916 &rule->arg.hdr_add.fmt,
2917 &rule->arg.hdr_add.re, rule->action))
Christopher Fauletcdade942017-02-08 12:41:31 +0100[diff] [blame]2918 return HTTP_RULE_RES_BADREQ;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2919 break;
2920
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2921 case ACT_HTTP_DEL_HDR:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2922 ctx.idx = 0;
2923 /* remove all occurrences of the header */
2924 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2925 ci_head(txn->rsp.chn), &txn->hdr_idx, &ctx)) {
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2926 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
2927 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2928 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2929
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2930 case ACT_HTTP_SET_HDR:
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2931 case ACT_HTTP_ADD_HDR: {
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]2932 struct buffer *replace;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2933
2934 replace = alloc_trash_chunk();
2935 if (!replace)
2936 return HTTP_RULE_RES_BADREQ;
2937
2938 chunk_printf(replace, "%s: ", rule->arg.hdr_add.name);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2939 memcpy(replace->area, rule->arg.hdr_add.name,
2940 rule->arg.hdr_add.name_len);
2941 replace->data = rule->arg.hdr_add.name_len;
2942 replace->area[replace->data++] = ':';
2943 replace->area[replace->data++] = ' ';
2944 replace->data += build_logline(s,
2945 replace->area + replace->data,
2946 replace->size - replace->data,
2947 &rule->arg.hdr_add.fmt);
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2948
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2949 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2950 /* remove all occurrences of the header */
2951 ctx.idx = 0;
2952 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]2953 ci_head(txn->rsp.chn), &txn->hdr_idx, &ctx)) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2954 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
2955 }
2956 }
Tim Duesterhus3fd19732018-05-27 20:35:08 +0200[diff] [blame]2957
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2958 if (http_header_add_tail2(&txn->rsp, &txn->hdr_idx, replace->area, replace->data) < 0) {
Tim Duesterhus3fd19732018-05-27 20:35:08 +0200[diff] [blame]2959 static unsigned char rate_limit = 0;
2960
2961 if ((rate_limit++ & 255) == 0) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2962 replace->area[rule->arg.hdr_add.name_len] = 0;
2963 send_log(px, LOG_WARNING, "Proxy %s failed to add or set the response header '%s' for request #%u. You might need to increase tune.maxrewrite.", px->id,
2964 replace->area, s->uniq_id);
Tim Duesterhus3fd19732018-05-27 20:35:08 +0200[diff] [blame]2965 }
2966
2967 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_rewrites, 1);
2968 if (sess->fe != s->be)
2969 HA_ATOMIC_ADD(&s->be->be_counters.failed_rewrites, 1);
2970 if (sess->listener->counters)
2971 HA_ATOMIC_ADD(&sess->listener->counters->failed_rewrites, 1);
2972 if (objt_server(s->target))
2973 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_rewrites, 1);
2974 }
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2975
2976 free_trash_chunk(replace);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2977 break;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2978 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2979
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2980 case ACT_HTTP_DEL_ACL:
2981 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2982 struct pat_ref *ref;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]2983 struct buffer *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2984
2985 /* collect reference */
2986 ref = pat_ref_lookup(rule->arg.map.ref);
2987 if (!ref)
2988 continue;
2989
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2990 /* allocate key */
2991 key = alloc_trash_chunk();
2992 if (!key)
2993 return HTTP_RULE_RES_BADREQ;
2994
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2995 /* collect key */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]2996 key->data = build_logline(s, key->area, key->size,
2997 &rule->arg.map.key);
2998 key->area[key->data] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2999
3000 /* perform update */
3001 /* returned code: 1=ok, 0=ko */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3002 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3003 pat_ref_delete(ref, key->area);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3004 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3005
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3006 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3007 break;
3008 }
3009
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3010 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3011 struct pat_ref *ref;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]3012 struct buffer *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3013
3014 /* collect reference */
3015 ref = pat_ref_lookup(rule->arg.map.ref);
3016 if (!ref)
3017 continue;
3018
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3019 /* allocate key */
3020 key = alloc_trash_chunk();
3021 if (!key)
3022 return HTTP_RULE_RES_BADREQ;
3023
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3024 /* collect key */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3025 key->data = build_logline(s, key->area, key->size,
3026 &rule->arg.map.key);
3027 key->area[key->data] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3028
3029 /* perform update */
3030 /* check if the entry already exists */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3031 if (pat_ref_find_elt(ref, key->area) == NULL)
3032 pat_ref_add(ref, key->area, NULL, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3033
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3034 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3035 break;
3036 }
3037
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3038 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3039 struct pat_ref *ref;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]3040 struct buffer *key, *value;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3041
3042 /* collect reference */
3043 ref = pat_ref_lookup(rule->arg.map.ref);
3044 if (!ref)
3045 continue;
3046
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3047 /* allocate key */
3048 key = alloc_trash_chunk();
3049 if (!key)
3050 return HTTP_RULE_RES_BADREQ;
3051
3052 /* allocate value */
3053 value = alloc_trash_chunk();
3054 if (!value) {
3055 free_trash_chunk(key);
3056 return HTTP_RULE_RES_BADREQ;
3057 }
3058
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3059 /* collect key */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3060 key->data = build_logline(s, key->area, key->size,
3061 &rule->arg.map.key);
3062 key->area[key->data] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3063
3064 /* collect value */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3065 value->data = build_logline(s, value->area,
3066 value->size,
3067 &rule->arg.map.value);
3068 value->area[value->data] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3069
3070 /* perform update */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3071 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3072 if (pat_ref_find_elt(ref, key->area) != NULL)
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3073 /* update entry if it exists */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3074 pat_ref_set(ref, key->area, value->area, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3075 else
3076 /* insert a new entry */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3077 pat_ref_add(ref, key->area, value->area, NULL);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3078 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3079 free_trash_chunk(key);
3080 free_trash_chunk(value);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3081 break;
3082 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3083
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3084 case ACT_HTTP_REDIR:
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3085 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
3086 return HTTP_RULE_RES_BADREQ;
3087 return HTTP_RULE_RES_DONE;
3088
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3089 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
3090 /* Note: only the first valid tracking parameter of each
3091 * applies.
3092 */
3093
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]3094 if (stkctr_entry(&s->stkctr[trk_idx(rule->action)]) == NULL) {
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3095 struct stktable *t;
3096 struct stksess *ts;
3097 struct stktable_key *key;
3098 void *ptr;
3099
3100 t = rule->arg.trk_ctr.table.t;
3101 key = stktable_fetch_key(t, s->be, sess, s, SMP_OPT_DIR_RES | SMP_OPT_FINAL, rule->arg.trk_ctr.expr, NULL);
3102
3103 if (key && (ts = stktable_get_entry(t, key))) {
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]3104 stream_track_stkctr(&s->stkctr[trk_idx(rule->action)], t, ts);
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3105
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3106 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3107
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3108 /* let's count a new HTTP request as it's the first time we do it */
3109 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
3110 if (ptr)
3111 stktable_data_cast(ptr, http_req_cnt)++;
3112
3113 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
3114 if (ptr)
3115 update_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
3116 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
3117
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3118 /* When the client triggers a 4xx from the server, it's most often due
3119 * to a missing object or permission. These events should be tracked
3120 * because if they happen often, it may indicate a brute force or a
3121 * vulnerability scan. Normally this is done when receiving the response
3122 * but here we're tracking after this ought to have been done so we have
3123 * to do it on purpose.
3124 */
Willy Tarreau3146a4c2016-07-26 15:22:33 +0200[diff] [blame]3125 if ((unsigned)(txn->status - 400) < 100) {
3126 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_ERR_CNT);
3127 if (ptr)
3128 stktable_data_cast(ptr, http_err_cnt)++;
3129
3130 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_ERR_RATE);
3131 if (ptr)
3132 update_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
3133 t->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u, 1);
3134 }
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3135
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3136 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3137
Emeric Brun0fed0b02017-11-29 16:15:07 +0100[diff] [blame]3138 /* If data was modified, we need to touch to re-schedule sync */
3139 stktable_touch_local(t, ts, 0);
3140
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3141 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
3142 if (sess->fe != s->be)
3143 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
3144
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3145 }
3146 }
3147 break;
3148
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3149 case ACT_CUSTOM:
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]3150 if ((s->req.flags & CF_READ_ERROR) ||
3151 ((s->req.flags & (CF_SHUTR|CF_READ_NULL)) &&
3152 !(s->si[0].flags & SI_FL_CLEAN_ABRT) &&
3153 (px->options & PR_O_ABRT_CLOSE)))
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3154 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]3155
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3156 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3157 case ACT_RET_ERR:
3158 case ACT_RET_CONT:
3159 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3160 case ACT_RET_STOP:
3161 return HTTP_RULE_RES_STOP;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3162 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3163 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3164 return HTTP_RULE_RES_YIELD;
3165 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3166 break;
3167
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]3168 /* other flags exists, but normaly, they never be matched. */
3169 default:
3170 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3171 }
3172 }
3173
3174 /* we reached the end of the rules, nothing to report */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3175 return HTTP_RULE_RES_CONT;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3176}
3177
3178
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3179/* Perform an HTTP redirect based on the information in <rule>. The function
3180 * returns non-zero on success, or zero in case of a, irrecoverable error such
3181 * as too large a request to build a valid response.
3182 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3183static int http_apply_redirect_rule(struct redirect_rule *rule, struct stream *s, struct http_txn *txn)
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3184{
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3185 struct http_msg *req = &txn->req;
3186 struct http_msg *res = &txn->rsp;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3187 const char *msg_fmt;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]3188 struct buffer *chunk;
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3189 int ret = 0;
3190
3191 chunk = alloc_trash_chunk();
3192 if (!chunk)
3193 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3194
3195 /* build redirect message */
3196 switch(rule->code) {
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]3197 case 308:
3198 msg_fmt = HTTP_308;
3199 break;
3200 case 307:
3201 msg_fmt = HTTP_307;
3202 break;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3203 case 303:
3204 msg_fmt = HTTP_303;
3205 break;
3206 case 301:
3207 msg_fmt = HTTP_301;
3208 break;
3209 case 302:
3210 default:
3211 msg_fmt = HTTP_302;
3212 break;
3213 }
3214
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3215 if (unlikely(!chunk_strcpy(chunk, msg_fmt)))
3216 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3217
3218 switch(rule->type) {
3219 case REDIRECT_TYPE_SCHEME: {
3220 const char *path;
3221 const char *host;
3222 struct hdr_ctx ctx;
3223 int pathlen;
3224 int hostlen;
3225
3226 host = "";
3227 hostlen = 0;
3228 ctx.idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]3229 if (http_find_header2("Host", 4, ci_head(req->chn), &txn->hdr_idx, &ctx)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3230 host = ctx.line + ctx.val;
3231 hostlen = ctx.vlen;
3232 }
3233
3234 path = http_get_path(txn);
3235 /* build message using path */
3236 if (path) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]3237 pathlen = req->sl.rq.u_l + (ci_head(req->chn) + req->sl.rq.u) - path;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3238 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3239 int qs = 0;
3240 while (qs < pathlen) {
3241 if (path[qs] == '?') {
3242 pathlen = qs;
3243 break;
3244 }
3245 qs++;
3246 }
3247 }
3248 } else {
3249 path = "/";
3250 pathlen = 1;
3251 }
3252
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3253 if (rule->rdr_str) { /* this is an old "redirect" rule */
3254 /* check if we can add scheme + "://" + host + path */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3255 if (chunk->data + rule->rdr_len + 3 + hostlen + pathlen > chunk->size - 4)
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3256 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3257
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3258 /* add scheme */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3259 memcpy(chunk->area + chunk->data, rule->rdr_str,
3260 rule->rdr_len);
3261 chunk->data += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3262 }
3263 else {
3264 /* add scheme with executing log format */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3265 chunk->data += build_logline(s,
3266 chunk->area + chunk->data,
3267 chunk->size - chunk->data,
3268 &rule->rdr_fmt);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3269
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3270 /* check if we can add scheme + "://" + host + path */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3271 if (chunk->data + 3 + hostlen + pathlen > chunk->size - 4)
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3272 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3273 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3274 /* add "://" */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3275 memcpy(chunk->area + chunk->data, "://", 3);
3276 chunk->data += 3;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3277
3278 /* add host */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3279 memcpy(chunk->area + chunk->data, host, hostlen);
3280 chunk->data += hostlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3281
3282 /* add path */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3283 memcpy(chunk->area + chunk->data, path, pathlen);
3284 chunk->data += pathlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3285
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3286 /* append a slash at the end of the location if needed and missing */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3287 if (chunk->data && chunk->area[chunk->data - 1] != '/' &&
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3288 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3289 if (chunk->data > chunk->size - 5)
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3290 goto leave;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3291 chunk->area[chunk->data] = '/';
3292 chunk->data++;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3293 }
3294
3295 break;
3296 }
3297 case REDIRECT_TYPE_PREFIX: {
3298 const char *path;
3299 int pathlen;
3300
3301 path = http_get_path(txn);
3302 /* build message using path */
3303 if (path) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]3304 pathlen = req->sl.rq.u_l + (ci_head(req->chn) + req->sl.rq.u) - path;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3305 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3306 int qs = 0;
3307 while (qs < pathlen) {
3308 if (path[qs] == '?') {
3309 pathlen = qs;
3310 break;
3311 }
3312 qs++;
3313 }
3314 }
3315 } else {
3316 path = "/";
3317 pathlen = 1;
3318 }
3319
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3320 if (rule->rdr_str) { /* this is an old "redirect" rule */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3321 if (chunk->data + rule->rdr_len + pathlen > chunk->size - 4)
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3322 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3323
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3324 /* add prefix. Note that if prefix == "/", we don't want to
3325 * add anything, otherwise it makes it hard for the user to
3326 * configure a self-redirection.
3327 */
3328 if (rule->rdr_len != 1 || *rule->rdr_str != '/') {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3329 memcpy(chunk->area + chunk->data,
3330 rule->rdr_str, rule->rdr_len);
3331 chunk->data += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3332 }
3333 }
3334 else {
3335 /* add prefix with executing log format */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3336 chunk->data += build_logline(s,
3337 chunk->area + chunk->data,
3338 chunk->size - chunk->data,
3339 &rule->rdr_fmt);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3340
3341 /* Check length */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3342 if (chunk->data + pathlen > chunk->size - 4)
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3343 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3344 }
3345
3346 /* add path */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3347 memcpy(chunk->area + chunk->data, path, pathlen);
3348 chunk->data += pathlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3349
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3350 /* append a slash at the end of the location if needed and missing */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3351 if (chunk->data && chunk->area[chunk->data - 1] != '/' &&
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3352 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3353 if (chunk->data > chunk->size - 5)
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3354 goto leave;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3355 chunk->area[chunk->data] = '/';
3356 chunk->data++;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3357 }
3358
3359 break;
3360 }
3361 case REDIRECT_TYPE_LOCATION:
3362 default:
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3363 if (rule->rdr_str) { /* this is an old "redirect" rule */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3364 if (chunk->data + rule->rdr_len > chunk->size - 4)
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3365 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3366
3367 /* add location */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3368 memcpy(chunk->area + chunk->data, rule->rdr_str,
3369 rule->rdr_len);
3370 chunk->data += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3371 }
3372 else {
3373 /* add location with executing log format */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3374 chunk->data += build_logline(s,
3375 chunk->area + chunk->data,
3376 chunk->size - chunk->data,
3377 &rule->rdr_fmt);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3378
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3379 /* Check left length */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3380 if (chunk->data > chunk->size - 4)
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3381 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3382 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3383 break;
3384 }
3385
3386 if (rule->cookie_len) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3387 memcpy(chunk->area + chunk->data, "\r\nSet-Cookie: ", 14);
3388 chunk->data += 14;
3389 memcpy(chunk->area + chunk->data, rule->cookie_str,
3390 rule->cookie_len);
3391 chunk->data += rule->cookie_len;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3392 }
3393
Willy Tarreau19b14122017-02-28 09:48:11 +0100[diff] [blame]3394 /* add end of headers and the keep-alive/close status. */
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3395 txn->status = rule->code;
3396 /* let's log the request time */
3397 s->logs.tv_request = now;
3398
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3399 if (((!(req->flags & HTTP_MSGF_TE_CHNK) && !req->body_len) || (req->msg_state == HTTP_MSG_DONE)) &&
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3400 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
3401 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
3402 /* keep-alive possible */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3403 if (!(req->flags & HTTP_MSGF_VER_11)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3404 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3405 memcpy(chunk->area + chunk->data,
3406 "\r\nProxy-Connection: keep-alive", 30);
3407 chunk->data += 30;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3408 } else {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3409 memcpy(chunk->area + chunk->data,
3410 "\r\nConnection: keep-alive", 24);
3411 chunk->data += 24;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3412 }
3413 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3414 memcpy(chunk->area + chunk->data, "\r\n\r\n", 4);
3415 chunk->data += 4;
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3416 FLT_STRM_CB(s, flt_http_reply(s, txn->status, chunk));
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3417 co_inject(res->chn, chunk->area, chunk->data);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3418 /* "eat" the request */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]3419 b_del(&req->chn->buf, req->sov);
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3420 req->next -= req->sov;
3421 req->sov = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3422 s->req.analysers = AN_REQ_HTTP_XFER_BODY | (s->req.analysers & AN_REQ_FLT_END);
Christopher Faulet014e39c2017-03-10 13:52:30 +0100[diff] [blame]3423 s->res.analysers = AN_RES_HTTP_XFER_BODY | (s->res.analysers & AN_RES_FLT_END);
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3424 req->msg_state = HTTP_MSG_CLOSED;
3425 res->msg_state = HTTP_MSG_DONE;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3426 /* Trim any possible response */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]3427 b_set_data(&res->chn->buf, co_data(res->chn));
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3428 res->next = res->sov = 0;
Christopher Faulet5d468ca2017-09-11 09:27:29 +0200[diff] [blame]3429 /* let the server side turn to SI_ST_CLO */
3430 channel_shutw_now(req->chn);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3431 } else {
3432 /* keep-alive not possible */
3433 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3434 memcpy(chunk->area + chunk->data,
3435 "\r\nProxy-Connection: close\r\n\r\n", 29);
3436 chunk->data += 29;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3437 } else {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3438 memcpy(chunk->area + chunk->data,
3439 "\r\nConnection: close\r\n\r\n", 23);
3440 chunk->data += 23;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3441 }
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3442 http_reply_and_close(s, txn->status, chunk);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3443 req->chn->analysers &= AN_REQ_FLT_END;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3444 }
3445
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3446 if (!(s->flags & SF_ERR_MASK))
3447 s->flags |= SF_ERR_LOCAL;
3448 if (!(s->flags & SF_FINST_MASK))
3449 s->flags |= SF_FINST_R;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3450
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3451 ret = 1;
3452 leave:
3453 free_trash_chunk(chunk);
3454 return ret;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3455}
3456
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3457/* This stream analyser runs all HTTP request processing which is common to
3458 * frontends and backends, which means blocking ACLs, filters, connection-close,
3459 * reqadd, stats and redirects. This is performed for the designated proxy.
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3460 * It returns 1 if the processing can continue on next analysers, or zero if it
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3461 * either needs more data or wants to immediately abort the request (eg: deny,
3462 * error, ...).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3463 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3464int http_process_req_common(struct stream *s, struct channel *req, int an_bit, struct proxy *px)
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3465{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3466 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3467 struct http_txn *txn = s->txn;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3468 struct http_msg *msg = &txn->req;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3469 struct redirect_rule *rule;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100[diff] [blame]3470 struct cond_wordlist *wl;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3471 enum rule_result verdict;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3472 int deny_status = HTTP_ERR_403;
Olivier Houchardc2aae742017-09-22 18:26:28 +0200[diff] [blame]3473 struct connection *conn = objt_conn(sess->origin);
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3474
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]3475 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3476 /* we need more data */
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3477 goto return_prx_yield;
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3478 }
3479
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]3480 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%lu analysers=%02x\n",
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3481 now_ms, __FUNCTION__,
3482 s,
3483 req,
3484 req->rex, req->wex,
3485 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]3486 ci_data(req),
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3487 req->analysers);
3488
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]3489 /* just in case we have some per-backend tracking */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3490 stream_inc_be_http_req_ctr(s);
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]3491
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3492 /* evaluate http-request rules */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3493 if (!LIST_ISEMPTY(&px->http_req_rules)) {
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3494 verdict = http_req_get_intercept_rule(px, &px->http_req_rules, s, &deny_status);
Willy Tarreau51425942010-02-01 10:40:19 +0100[diff] [blame]3495
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3496 switch (verdict) {
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3497 case HTTP_RULE_RES_YIELD: /* some data miss, call the function later. */
3498 goto return_prx_yield;
3499
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3500 case HTTP_RULE_RES_CONT:
3501 case HTTP_RULE_RES_STOP: /* nothing to do */
3502 break;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3503
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3504 case HTTP_RULE_RES_DENY: /* deny or tarpit */
3505 if (txn->flags & TX_CLTARPIT)
3506 goto tarpit;
3507 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3508
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3509 case HTTP_RULE_RES_ABRT: /* abort request, response already sent. Eg: auth */
3510 goto return_prx_cond;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3511
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3512 case HTTP_RULE_RES_DONE: /* OK, but terminate request processing (eg: redirect) */
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3513 goto done;
3514
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3515 case HTTP_RULE_RES_BADREQ: /* failed with a bad request */
3516 goto return_bad_req;
3517 }
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3518 }
3519
Olivier Houchard25ae45a2017-11-29 19:51:19 +0100[diff] [blame]3520 if (conn && (conn->flags & CO_FL_EARLY_DATA) &&
3521 (conn->flags & (CO_FL_EARLY_SSL_HS | CO_FL_HANDSHAKE))) {
Olivier Houchardc2aae742017-09-22 18:26:28 +0200[diff] [blame]3522 struct hdr_ctx ctx;
3523
3524 ctx.idx = 0;
3525 if (!http_find_header2("Early-Data", strlen("Early-Data"),
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]3526 ci_head(&s->req), &txn->hdr_idx, &ctx)) {
Olivier Houchardc2aae742017-09-22 18:26:28 +0200[diff] [blame]3527 if (unlikely(http_header_add_tail2(&txn->req,
3528 &txn->hdr_idx, "Early-Data: 1",
Christopher Faulet005e79e2018-07-20 09:54:26 +0200[diff] [blame]3529 strlen("Early-Data: 1")) < 0)) {
Olivier Houchardc2aae742017-09-22 18:26:28 +0200[diff] [blame]3530 goto return_bad_req;
3531 }
3532 }
3533
3534 }
3535
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3536 /* OK at this stage, we know that the request was accepted according to
3537 * the http-request rules, we can check for the stats. Note that the
3538 * URI is detected *before* the req* rules in order not to be affected
3539 * by a possible reqrep, while they are processed *after* so that a
3540 * reqdeny can still block them. This clearly needs to change in 1.6!
3541 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]3542 if (stats_check_uri(&s->si[1], txn, px)) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3543 s->target = &http_stats_applet.obj_type;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]3544 if (unlikely(!stream_int_register_handler(&s->si[1], objt_applet(s->target)))) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3545 txn->status = 500;
3546 s->logs.tv_request = now;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3547 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3548
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3549 if (!(s->flags & SF_ERR_MASK))
3550 s->flags |= SF_ERR_RESOURCE;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3551 goto return_prx_cond;
3552 }
3553
3554 /* parse the whole stats request and extract the relevant information */
3555 http_handle_stats(s, req);
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3556 verdict = http_req_get_intercept_rule(px, &px->uri_auth->http_req_rules, s, &deny_status);
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3557 /* not all actions implemented: deny, allow, auth */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3558
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3559 if (verdict == HTTP_RULE_RES_DENY) /* stats http-request deny */
3560 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3561
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3562 if (verdict == HTTP_RULE_RES_ABRT) /* stats auth / stats http-request auth */
3563 goto return_prx_cond;
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +0100[diff] [blame]3564 }
3565
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3566 /* evaluate the req* rules except reqadd */
3567 if (px->req_exp != NULL) {
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]3568 if (apply_filters_to_request(s, req, px) < 0)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3569 goto return_bad_req;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3570
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3571 if (txn->flags & TX_CLDENY)
3572 goto deny;
Willy Tarreauc465fd72009-08-31 00:17:18 +0200[diff] [blame]3573
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3574 if (txn->flags & TX_CLTARPIT) {
3575 deny_status = HTTP_ERR_500;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3576 goto tarpit;
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3577 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3578 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3579
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3580 /* add request headers from the rule sets in the same order */
3581 list_for_each_entry(wl, &px->req_add, list) {
3582 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3583 int ret = acl_exec_cond(wl->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3584 ret = acl_pass(ret);
3585 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
3586 ret = !ret;
3587 if (!ret)
3588 continue;
3589 }
3590
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]3591 if (unlikely(http_header_add_tail(&txn->req, &txn->hdr_idx, wl->s) < 0))
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3592 goto return_bad_req;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]3593 }
3594
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3595
3596 /* Proceed with the stats now. */
William Lallemand71bd11a2017-11-20 19:13:14 +0100[diff] [blame]3597 if (unlikely(objt_applet(s->target) == &http_stats_applet) ||
3598 unlikely(objt_applet(s->target) == &http_cache_applet)) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3599 /* process the stats request now */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3600 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3601 HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3602
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3603 if (!(s->flags & SF_ERR_MASK)) // this is not really an error but it is
3604 s->flags |= SF_ERR_LOCAL; // to mark that it comes from the proxy
3605 if (!(s->flags & SF_FINST_MASK))
3606 s->flags |= SF_FINST_R;
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3607
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]3608 /* enable the minimally required analyzers to handle keep-alive and compression on the HTTP response */
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3609 req->analysers &= (AN_REQ_HTTP_BODY | AN_REQ_FLT_HTTP_HDRS | AN_REQ_FLT_END);
3610 req->analysers &= ~AN_REQ_FLT_XFER_DATA;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]3611 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3612 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3613 }
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]3614
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3615 /* check whether we have some ACLs set to redirect this request */
3616 list_for_each_entry(rule, &px->redirect_rules, list) {
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]3617 if (rule->cond) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3618 int ret;
3619
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3620 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]3621 ret = acl_pass(ret);
3622 if (rule->cond->pol == ACL_COND_UNLESS)
3623 ret = !ret;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3624 if (!ret)
3625 continue;
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]3626 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3627 if (!http_apply_redirect_rule(rule, s, txn))
3628 goto return_bad_req;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3629 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3630 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]3631
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]3632 /* POST requests may be accompanied with an "Expect: 100-Continue" header.
3633 * If this happens, then the data will not come immediately, so we must
3634 * send all what we have without waiting. Note that due to the small gain
3635 * in waiting for the body of the request, it's easier to simply put the
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]3636 * CF_SEND_DONTWAIT flag any time. It's a one-shot flag so it will remove
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]3637 * itself once used.
3638 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]3639 req->flags |= CF_SEND_DONTWAIT;
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]3640
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3641 done: /* done with this analyser, continue with next ones that the calling
3642 * points will have set, if any.
3643 */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3644 req->analyse_exp = TICK_ETERNITY;
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]3645 done_without_exp: /* done with this analyser, but dont reset the analyse_exp. */
3646 req->analysers &= ~an_bit;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3647 return 1;
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]3648
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3649 tarpit:
Willy Tarreau6a0bca92017-06-11 17:56:27 +0200[diff] [blame]3650 /* Allow cookie logging
3651 */
3652 if (s->be->cookie_name || sess->fe->capture_name)
3653 manage_client_side_cookies(s, req);
3654
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3655 /* When a connection is tarpitted, we use the tarpit timeout,
3656 * which may be the same as the connect timeout if unspecified.
3657 * If unset, then set it to zero because we really want it to
3658 * eventually expire. We build the tarpit as an analyser.
3659 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]3660 channel_erase(&s->req);
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3661
3662 /* wipe the request out so that we can drop the connection early
3663 * if the client closes first.
3664 */
3665 channel_dont_connect(req);
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3666
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3667 txn->status = http_err_codes[deny_status];
3668
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3669 req->analysers &= AN_REQ_FLT_END; /* remove switching rules etc... */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3670 req->analysers |= AN_REQ_HTTP_TARPIT;
3671 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.tarpit);
3672 if (!req->analyse_exp)
3673 req->analyse_exp = tick_add(now_ms, 0);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3674 stream_inc_http_err_ctr(s);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3675 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3676 if (sess->fe != s->be)
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3677 HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3678 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3679 HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1);
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]3680 goto done_without_exp;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3681
3682 deny: /* this request was blocked (denied) */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3683
3684 /* Allow cookie logging
3685 */
3686 if (s->be->cookie_name || sess->fe->capture_name)
3687 manage_client_side_cookies(s, req);
3688
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3689 txn->flags |= TX_CLDENY;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3690 txn->status = http_err_codes[deny_status];
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3691 s->logs.tv_request = now;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3692 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3693 stream_inc_http_err_ctr(s);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3694 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3695 if (sess->fe != s->be)
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3696 HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3697 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3698 HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1);
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3699 goto return_prx_cond;
3700
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3701 return_bad_req:
3702 /* We centralize bad requests processing here */
3703 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
3704 /* we detected a parsing error. We want to archive this request
3705 * in the dedicated proxy area for later troubleshooting.
3706 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]3707 http_capture_bad_message(sess->fe, &sess->fe->invalid_req, s, msg, msg->err_state, sess->fe);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3708 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]3709
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3710 txn->req.err_state = txn->req.msg_state;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3711 txn->req.msg_state = HTTP_MSG_ERROR;
3712 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3713 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]3714
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3715 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3716 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3717 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreau6e4261e2007-09-18 18:36:05 +0200[diff] [blame]3718
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3719 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3720 if (!(s->flags & SF_ERR_MASK))
3721 s->flags |= SF_ERR_PRXCOND;
3722 if (!(s->flags & SF_FINST_MASK))
3723 s->flags |= SF_FINST_R;
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100[diff] [blame]3724
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3725 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3726 req->analyse_exp = TICK_ETERNITY;
3727 return 0;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3728
3729 return_prx_yield:
3730 channel_dont_connect(req);
3731 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3732}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3733
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3734/* This function performs all the processing enabled for the current request.
3735 * It returns 1 if the processing can continue on next analysers, or zero if it
3736 * needs more data, encounters an error, or wants to immediately abort the
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]3737 * request. It relies on buffers flags, and updates s->req.analysers.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3738 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3739int http_process_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3740{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3741 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3742 struct http_txn *txn = s->txn;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3743 struct http_msg *msg = &txn->req;
Willy Tarreauee335e62015-04-21 18:15:13 +0200[diff] [blame]3744 struct connection *cli_conn = objt_conn(strm_sess(s)->origin);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3745
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]3746 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3747 /* we need more data */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]3748 channel_dont_connect(req);
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3749 return 0;
3750 }
3751
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]3752 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%lu analysers=%02x\n",
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3753 now_ms, __FUNCTION__,
3754 s,
3755 req,
3756 req->rex, req->wex,
3757 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]3758 ci_data(req),
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3759 req->analysers);
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3760
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3761 /*
3762 * Right now, we know that we have processed the entire headers
3763 * and that unwanted requests have been filtered out. We can do
3764 * whatever we want with the remaining request. Also, now we
3765 * may have separate values for ->fe, ->be.
3766 */
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3767
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3768 /*
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3769 * If HTTP PROXY is set we simply get remote server address parsing
3770 * incoming request. Note that this requires that a connection is
3771 * allocated on the server side.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3772 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3773 if ((s->be->options & PR_O_HTTP_PROXY) && !(s->flags & SF_ADDR_SET)) {
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3774 struct connection *conn;
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3775 char *path;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3776
Willy Tarreau9471b8c2013-12-15 13:31:35 +0100[diff] [blame]3777 /* Note that for now we don't reuse existing proxy connections */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]3778 if (unlikely((conn = cs_conn(si_alloc_cs(&s->si[1], NULL))) == NULL)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3779 txn->req.err_state = txn->req.msg_state;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3780 txn->req.msg_state = HTTP_MSG_ERROR;
3781 txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3782 req->analysers &= AN_REQ_FLT_END;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3783 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3784
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3785 if (!(s->flags & SF_ERR_MASK))
3786 s->flags |= SF_ERR_RESOURCE;
3787 if (!(s->flags & SF_FINST_MASK))
3788 s->flags |= SF_FINST_R;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3789
3790 return 0;
3791 }
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3792
3793 path = http_get_path(txn);
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]3794 if (url2sa(ci_head(req) + msg->sl.rq.u,
3795 path ? path - (ci_head(req) + msg->sl.rq.u) : msg->sl.rq.u_l,
Christopher Faulet11ebb202018-04-13 15:53:12 +0200[diff] [blame]3796 &conn->addr.to, NULL) == -1)
3797 goto return_bad_req;
3798
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3799 /* if the path was found, we have to remove everything between
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]3800 * ci_head(req) + msg->sl.rq.u and path (excluded). If it was not
3801 * found, we need to replace from ci_head(req) + msg->sl.rq.u for
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3802 * u_l characters by a single "/".
3803 */
3804 if (path) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]3805 char *cur_ptr = ci_head(req);
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3806 char *cur_end = cur_ptr + txn->req.sl.rq.l;
3807 int delta;
3808
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]3809 delta = b_rep_blk(&req->buf, cur_ptr + msg->sl.rq.u, path, NULL, 0);
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3810 http_msg_move_end(&txn->req, delta);
3811 cur_end += delta;
3812 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
3813 goto return_bad_req;
3814 }
3815 else {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]3816 char *cur_ptr = ci_head(req);
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3817 char *cur_end = cur_ptr + txn->req.sl.rq.l;
3818 int delta;
3819
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]3820 delta = b_rep_blk(&req->buf, cur_ptr + msg->sl.rq.u,
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]3821 cur_ptr + msg->sl.rq.u + msg->sl.rq.u_l, "/", 1);
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3822 http_msg_move_end(&txn->req, delta);
3823 cur_end += delta;
3824 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
3825 goto return_bad_req;
3826 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3827 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3828
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3829 /*
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]3830 * 7: Now we can work with the cookies.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3831 * Note that doing so might move headers in the request, but
3832 * the fields will stay coherent and the URI will not move.
3833 * This should only be performed in the backend.
3834 */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3835 if (s->be->cookie_name || sess->fe->capture_name)
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3836 manage_client_side_cookies(s, req);
Willy Tarreau7ac51f62007-03-25 16:00:04 +0200[diff] [blame]3837
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3838 /* add unique-id if "header-unique-id" is specified */
3839
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]3840 if (!LIST_ISEMPTY(&sess->fe->format_unique_id) && !s->unique_id) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]3841 if ((s->unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]3842 goto return_bad_req;
3843 s->unique_id[0] = '\0';
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3844 build_logline(s, s->unique_id, UNIQUEID_LEN, &sess->fe->format_unique_id);
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]3845 }
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3846
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3847 if (sess->fe->header_unique_id && s->unique_id) {
3848 chunk_printf(&trash, "%s: %s", sess->fe->header_unique_id, s->unique_id);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3849 if (trash.data < 0)
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3850 goto return_bad_req;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3851 if (unlikely(http_header_add_tail2(&txn->req, &txn->hdr_idx, trash.area, trash.data) < 0))
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3852 goto return_bad_req;
3853 }
3854
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]3855 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3856 * 9: add X-Forwarded-For if either the frontend or the backend
3857 * asks for it.
3858 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3859 if ((sess->fe->options | s->be->options) & PR_O_FWDFOR) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]3860 struct hdr_ctx ctx = { .idx = 0 };
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3861 if (!((sess->fe->options | s->be->options) & PR_O_FF_ALWAYS) &&
3862 http_find_header2(s->be->fwdfor_hdr_len ? s->be->fwdfor_hdr_name : sess->fe->fwdfor_hdr_name,
3863 s->be->fwdfor_hdr_len ? s->be->fwdfor_hdr_len : sess->fe->fwdfor_hdr_len,
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]3864 ci_head(req), &txn->hdr_idx, &ctx)) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]3865 /* The header is set to be added only if none is present
3866 * and we found it, so don't do anything.
3867 */
3868 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3869 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3870 /* Add an X-Forwarded-For header unless the source IP is
3871 * in the 'except' network range.
3872 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3873 if ((!sess->fe->except_mask.s_addr ||
3874 (((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr.s_addr & sess->fe->except_mask.s_addr)
3875 != sess->fe->except_net.s_addr) &&
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3876 (!s->be->except_mask.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3877 (((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr.s_addr & s->be->except_mask.s_addr)
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3878 != s->be->except_net.s_addr)) {
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]3879 int len;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3880 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3881 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr;
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]3882
3883 /* Note: we rely on the backend to get the header name to be used for
3884 * x-forwarded-for, because the header is really meant for the backends.
3885 * However, if the backend did not specify any option, we have to rely
3886 * on the frontend's header name.
3887 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3888 if (s->be->fwdfor_hdr_len) {
3889 len = s->be->fwdfor_hdr_len;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3890 memcpy(trash.area,
3891 s->be->fwdfor_hdr_name, len);
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]3892 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3893 len = sess->fe->fwdfor_hdr_len;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3894 memcpy(trash.area,
3895 sess->fe->fwdfor_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]3896 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3897 len += snprintf(trash.area + len,
3898 trash.size - len,
3899 ": %d.%d.%d.%d", pn[0], pn[1],
3900 pn[2], pn[3]);
Willy Tarreauedcf6682008-11-30 23:15:34 +0100[diff] [blame]3901
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3902 if (unlikely(http_header_add_tail2(&txn->req, &txn->hdr_idx, trash.area, len) < 0))
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3903 goto return_bad_req;
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]3904 }
3905 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3906 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET6) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3907 /* FIXME: for the sake of completeness, we should also support
3908 * 'except' here, although it is mostly useless in this case.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3909 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3910 int len;
3911 char pn[INET6_ADDRSTRLEN];
3912 inet_ntop(AF_INET6,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3913 (const void *)&((struct sockaddr_in6 *)(&cli_conn->addr.from))->sin6_addr,
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3914 pn, sizeof(pn));
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3915
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3916 /* Note: we rely on the backend to get the header name to be used for
3917 * x-forwarded-for, because the header is really meant for the backends.
3918 * However, if the backend did not specify any option, we have to rely
3919 * on the frontend's header name.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3920 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3921 if (s->be->fwdfor_hdr_len) {
3922 len = s->be->fwdfor_hdr_len;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3923 memcpy(trash.area, s->be->fwdfor_hdr_name,
3924 len);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3925 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3926 len = sess->fe->fwdfor_hdr_len;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3927 memcpy(trash.area, sess->fe->fwdfor_hdr_name,
3928 len);
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3929 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3930 len += snprintf(trash.area + len, trash.size - len,
3931 ": %s", pn);
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3932
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3933 if (unlikely(http_header_add_tail2(&txn->req, &txn->hdr_idx, trash.area, len) < 0))
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3934 goto return_bad_req;
3935 }
3936 }
3937
3938 /*
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3939 * 10: add X-Original-To if either the frontend or the backend
3940 * asks for it.
3941 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3942 if ((sess->fe->options | s->be->options) & PR_O_ORGTO) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3943
3944 /* FIXME: don't know if IPv6 can handle that case too. */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3945 if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3946 /* Add an X-Original-To header unless the destination IP is
3947 * in the 'except' network range.
3948 */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3949 conn_get_to_addr(cli_conn);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3950
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3951 if (cli_conn->addr.to.ss_family == AF_INET &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3952 ((!sess->fe->except_mask_to.s_addr ||
3953 (((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr.s_addr & sess->fe->except_mask_to.s_addr)
3954 != sess->fe->except_to.s_addr) &&
Emeric Brun5bd86a82010-10-22 17:23:04 +0200[diff] [blame]3955 (!s->be->except_mask_to.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3956 (((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr.s_addr & s->be->except_mask_to.s_addr)
Emeric Brun5bd86a82010-10-22 17:23:04 +0200[diff] [blame]3957 != s->be->except_to.s_addr))) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3958 int len;
3959 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3960 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr;
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3961
3962 /* Note: we rely on the backend to get the header name to be used for
3963 * x-original-to, because the header is really meant for the backends.
3964 * However, if the backend did not specify any option, we have to rely
3965 * on the frontend's header name.
3966 */
3967 if (s->be->orgto_hdr_len) {
3968 len = s->be->orgto_hdr_len;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3969 memcpy(trash.area,
3970 s->be->orgto_hdr_name, len);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3971 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3972 len = sess->fe->orgto_hdr_len;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3973 memcpy(trash.area,
3974 sess->fe->orgto_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]3975 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3976 len += snprintf(trash.area + len,
3977 trash.size - len,
3978 ": %d.%d.%d.%d", pn[0], pn[1],
3979 pn[2], pn[3]);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3980
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]3981 if (unlikely(http_header_add_tail2(&txn->req, &txn->hdr_idx, trash.area, len) < 0))
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3982 goto return_bad_req;
3983 }
3984 }
3985 }
3986
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]3987 /* 11: add "Connection: close" or "Connection: keep-alive" if needed and not yet set.
3988 * If an "Upgrade" token is found, the header is left untouched in order not to have
3989 * to deal with some servers bugs : some of them fail an Upgrade if anything but
3990 * "Upgrade" is present in the Connection header.
3991 */
3992 if (!(txn->flags & TX_HDR_CONN_UPG) &&
3993 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3994 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3995 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3996 unsigned int want_flags = 0;
3997
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3998 if (msg->flags & HTTP_MSGF_VER_11) {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]3999 if (((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4000 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]4001 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4002 !((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]4003 want_flags |= TX_CON_CLO_SET;
4004 } else {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]4005 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4006 ((sess->fe->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL &&
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]4007 (s->be->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL)) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4008 ((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]4009 want_flags |= TX_CON_KAL_SET;
4010 }
4011
4012 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]4013 http_change_connection_header(txn, msg, want_flags);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4014 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4015
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]4016
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4017 /* If we have no server assigned yet and we're balancing on url_param
4018 * with a POST request, we may be interested in checking the body for
4019 * that parameter. This will be done in another analyser.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4020 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4021 if (!(s->flags & (SF_ASSIGNED|SF_DIRECT)) &&
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4022 s->txn->meth == HTTP_METH_POST && s->be->url_param_name != NULL &&
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4023 (msg->flags & (HTTP_MSGF_CNT_LEN|HTTP_MSGF_TE_CHNK))) {
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4024 channel_dont_connect(req);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4025 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4026 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]4027
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]4028 req->analysers &= ~AN_REQ_FLT_XFER_DATA;
4029 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]4030#ifdef TCP_QUICKACK
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]4031 /* We expect some data from the client. Unless we know for sure
4032 * we already have a full request, we have to re-enable quick-ack
4033 * in case we previously disabled it, otherwise we might cause
4034 * the client to delay further data.
4035 */
4036 if ((sess->listener->options & LI_O_NOQUICKACK) &&
4037 cli_conn && conn_ctrl_ready(cli_conn) &&
4038 ((msg->flags & HTTP_MSGF_TE_CHNK) ||
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]4039 (msg->body_len > ci_data(req) - txn->req.eoh - 2)))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]4040 setsockopt(cli_conn->handle.fd, IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one));
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]4041#endif
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]4042
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4043 /*************************************************************
4044 * OK, that's finished for the headers. We have done what we *
4045 * could. Let's switch to the DATA state. *
4046 ************************************************************/
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4047 req->analyse_exp = TICK_ETERNITY;
4048 req->analysers &= ~an_bit;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]4049
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4050 s->logs.tv_request = now;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4051 /* OK let's go on with the BODY now */
4052 return 1;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4053
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4054 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]4055 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
Willy Tarreauf073a832009-03-01 23:21:47 +0100[diff] [blame]4056 /* we detected a parsing error. We want to archive this request
4057 * in the dedicated proxy area for later troubleshooting.
4058 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]4059 http_capture_bad_message(sess->fe, &sess->fe->invalid_req, s, msg, msg->err_state, sess->fe);
Willy Tarreauf073a832009-03-01 23:21:47 +0100[diff] [blame]4060 }
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]4061
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4062 txn->req.err_state = txn->req.msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4063 txn->req.msg_state = HTTP_MSG_ERROR;
4064 txn->status = 400;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4065 req->analysers &= AN_REQ_FLT_END;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4066 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]4067
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4068 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4069 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]4070 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]4071
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4072 if (!(s->flags & SF_ERR_MASK))
4073 s->flags |= SF_ERR_PRXCOND;
4074 if (!(s->flags & SF_FINST_MASK))
4075 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]4076 return 0;
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]4077}
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]4078
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4079/* This function is an analyser which processes the HTTP tarpit. It always
4080 * returns zero, at the beginning because it prevents any other processing
4081 * from occurring, and at the end because it terminates the request.
4082 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4083int http_process_tarpit(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4084{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4085 struct http_txn *txn = s->txn;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4086
4087 /* This connection is being tarpitted. The CLIENT side has
4088 * already set the connect expiration date to the right
4089 * timeout. We just have to check that the client is still
4090 * there and that the timeout has not expired.
4091 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4092 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4093 if ((req->flags & (CF_SHUTR|CF_READ_ERROR)) == 0 &&
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4094 !tick_is_expired(req->analyse_exp, now_ms))
4095 return 0;
4096
4097 /* We will set the queue timer to the time spent, just for
4098 * logging purposes. We fake a 500 server error, so that the
4099 * attacker will not suspect his connection has been tarpitted.
4100 * It will not cause trouble to the logs because we can exclude
4101 * the tarpitted connections by filtering on the 'PT' status flags.
4102 */
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4103 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
4104
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4105 if (!(req->flags & CF_READ_ERROR))
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4106 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4107
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4108 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4109 req->analyse_exp = TICK_ETERNITY;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]4110
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4111 if (!(s->flags & SF_ERR_MASK))
4112 s->flags |= SF_ERR_PRXCOND;
4113 if (!(s->flags & SF_FINST_MASK))
4114 s->flags |= SF_FINST_T;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4115 return 0;
4116}
4117
Willy Tarreau5a8f9472014-04-10 11:16:06 +0200[diff] [blame]4118/* This function is an analyser which waits for the HTTP request body. It waits
4119 * for either the buffer to be full, or the full advertised contents to have
4120 * reached the buffer. It must only be called after the standard HTTP request
4121 * processing has occurred, because it expects the request to be parsed and will
4122 * look for the Expect header. It may send a 100-Continue interim response. It
4123 * takes in input any state starting from HTTP_MSG_BODY and leaves with one of
4124 * HTTP_MSG_CHK_SIZE, HTTP_MSG_DATA or HTTP_MSG_TRAILERS. It returns zero if it
4125 * needs to read more data, or 1 once it has completed its analysis.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4126 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4127int http_wait_for_request_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4128{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4129 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4130 struct http_txn *txn = s->txn;
4131 struct http_msg *msg = &s->txn->req;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4132
4133 /* We have to parse the HTTP request body to find any required data.
4134 * "balance url_param check_post" should have been the only way to get
4135 * into this. We were brought here after HTTP header analysis, so all
4136 * related structures are ready.
4137 */
4138
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4139 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE) {
4140 /* This is the first call */
4141 if (msg->msg_state < HTTP_MSG_BODY)
4142 goto missing_data;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4143
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4144 if (msg->msg_state < HTTP_MSG_100_SENT) {
4145 /* If we have HTTP/1.1 and Expect: 100-continue, then we must
4146 * send an HTTP/1.1 100 Continue intermediate response.
4147 */
4148 if (msg->flags & HTTP_MSGF_VER_11) {
4149 struct hdr_ctx ctx;
4150 ctx.idx = 0;
4151 /* Expect is allowed in 1.1, look for it */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]4152 if (http_find_header2("Expect", 6, ci_head(req), &txn->hdr_idx, &ctx) &&
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4153 unlikely(ctx.vlen == 12 && strncasecmp(ctx.line+ctx.val, "100-continue", 12) == 0)) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]4154 co_inject(&s->res,
4155 http_100_chunk.area,
4156 http_100_chunk.data);
Thierry FOURNIER / OZON.IO43ad11d2016-12-12 15:19:58 +0100[diff] [blame]4157 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4158 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4159 }
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4160 msg->msg_state = HTTP_MSG_100_SENT;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4161 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4162
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]4163 /* we have msg->sov which points to the first byte of message body.
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]4164 * ci_head(req) still points to the beginning of the message. We
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4165 * must save the body in msg->next because it survives buffer
4166 * re-alignments.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4167 */
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]4168 msg->next = msg->sov;
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4169
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4170 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4171 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
4172 else
4173 msg->msg_state = HTTP_MSG_DATA;
4174 }
4175
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4176 if (!(msg->flags & HTTP_MSGF_TE_CHNK)) {
4177 /* We're in content-length mode, we just have to wait for enough data. */
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4178 if (http_body_bytes(msg) < msg->body_len)
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4179 goto missing_data;
4180
4181 /* OK we have everything we need now */
4182 goto http_end;
4183 }
4184
4185 /* OK here we're parsing a chunked-encoded message */
4186
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4187 if (msg->msg_state == HTTP_MSG_CHUNK_SIZE) {
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]4188 /* read the chunk size and assign it to ->chunk_len, then
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4189 * set ->sov and ->next to point to the body and switch to DATA or
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4190 * TRAILERS state.
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4191 */
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]4192 unsigned int chunk;
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]4193 int ret = h1_parse_chunk_size(&req->buf, co_data(req) + msg->next, c_data(req), &chunk);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4194
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4195 if (!ret)
4196 goto missing_data;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4197 else if (ret < 0) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]4198 msg->err_pos = ci_data(req) + ret;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]4199 if (msg->err_pos < 0)
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]4200 msg->err_pos += req->buf.size;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4201 stream_inc_http_err_ctr(s);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4202 goto return_bad_req;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4203 }
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]4204
4205 msg->chunk_len = chunk;
4206 msg->body_len += chunk;
4207
4208 msg->sol = ret;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]4209 msg->next += ret;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4210 msg->msg_state = msg->chunk_len ? HTTP_MSG_DATA : HTTP_MSG_TRAILERS;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4211 }
4212
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4213 /* Now we're in HTTP_MSG_DATA or HTTP_MSG_TRAILERS state.
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4214 * We have the first data byte is in msg->sov + msg->sol. We're waiting
4215 * for at least a whole chunk or the whole content length bytes after
4216 * msg->sov + msg->sol.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4217 */
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4218 if (msg->msg_state == HTTP_MSG_TRAILERS)
4219 goto http_end;
4220
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4221 if (http_body_bytes(msg) >= msg->body_len) /* we have enough bytes now */
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4222 goto http_end;
4223
4224 missing_data:
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4225 /* we get here if we need to wait for more data. If the buffer is full,
4226 * we have the maximum we can expect.
4227 */
Willy Tarreau23752332018-06-15 14:54:53 +0200[diff] [blame]4228 if (channel_full(req, global.tune.maxrewrite))
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4229 goto http_end;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4230
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4231 if ((req->flags & CF_READ_TIMEOUT) || tick_is_expired(req->analyse_exp, now_ms)) {
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4232 txn->status = 408;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4233 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4234
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4235 if (!(s->flags & SF_ERR_MASK))
4236 s->flags |= SF_ERR_CLITO;
4237 if (!(s->flags & SF_FINST_MASK))
4238 s->flags |= SF_FINST_D;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4239 goto return_err_msg;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4240 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4241
4242 /* we get here if we need to wait for more data */
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4243 if (!(req->flags & (CF_SHUTR | CF_READ_ERROR))) {
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4244 /* Not enough data. We'll re-use the http-request
4245 * timeout here. Ideally, we should set the timeout
4246 * relative to the accept() date. We just set the
4247 * request timeout once at the beginning of the
4248 * request.
4249 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4250 channel_dont_connect(req);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4251 if (!tick_isset(req->analyse_exp))
Willy Tarreaucd7afc02009-07-12 10:03:17 +0200[diff] [blame]4252 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4253 return 0;
4254 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4255
4256 http_end:
4257 /* The situation will not evolve, so let's give up on the analysis. */
4258 s->logs.tv_request = now; /* update the request timer to reflect full request */
4259 req->analysers &= ~an_bit;
4260 req->analyse_exp = TICK_ETERNITY;
4261 return 1;
4262
4263 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4264 txn->req.err_state = txn->req.msg_state;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4265 txn->req.msg_state = HTTP_MSG_ERROR;
4266 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4267 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4268
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4269 if (!(s->flags & SF_ERR_MASK))
4270 s->flags |= SF_ERR_PRXCOND;
4271 if (!(s->flags & SF_FINST_MASK))
4272 s->flags |= SF_FINST_R;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4273
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4274 return_err_msg:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4275 req->analysers &= AN_REQ_FLT_END;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4276 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4277 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]4278 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4279 return 0;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4280}
4281
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4282/* send a server's name with an outgoing request over an established connection.
4283 * Note: this function is designed to be called once the request has been scheduled
4284 * for being forwarded. This is the reason why it rewinds the buffer before
4285 * proceeding.
4286 */
Willy Tarreau45c0d982012-03-09 12:11:57 +0100[diff] [blame]4287int http_send_name_header(struct http_txn *txn, struct proxy* be, const char* srv_name) {
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4288
4289 struct hdr_ctx ctx;
4290
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4291 char *hdr_name = be->server_id_hdr_name;
4292 int hdr_name_len = be->server_id_hdr_len;
Willy Tarreau394db372012-10-12 22:40:39 +0200[diff] [blame]4293 struct channel *chn = txn->req.chn;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4294 char *hdr_val;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4295 unsigned int old_o, old_i;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4296
William Lallemandd9e90662012-01-30 17:27:17 +0100[diff] [blame]4297 ctx.idx = 0;
4298
Willy Tarreau211cdec2014-04-17 20:18:08 +0200[diff] [blame]4299 old_o = http_hdr_rewind(&txn->req);
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4300 if (old_o) {
4301 /* The request was already skipped, let's restore it */
Willy Tarreaubcbd3932018-06-06 07:13:22 +0200[diff] [blame]4302 c_rew(chn, old_o);
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4303 txn->req.next += old_o;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4304 txn->req.sov += old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4305 }
4306
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]4307 old_i = ci_data(chn);
4308 while (http_find_header2(hdr_name, hdr_name_len, ci_head(txn->req.chn), &txn->hdr_idx, &ctx)) {
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4309 /* remove any existing values from the header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]4310 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4311 }
4312
4313 /* Add the new header requested with the server value */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]4314 hdr_val = trash.area;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4315 memcpy(hdr_val, hdr_name, hdr_name_len);
4316 hdr_val += hdr_name_len;
4317 *hdr_val++ = ':';
4318 *hdr_val++ = ' ';
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]4319 hdr_val += strlcpy2(hdr_val, srv_name,
4320 trash.area + trash.size - hdr_val);
4321 http_header_add_tail2(&txn->req, &txn->hdr_idx, trash.area,
4322 hdr_val - trash.area);
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4323
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4324 if (old_o) {
4325 /* If this was a forwarded request, we must readjust the amount of
4326 * data to be forwarded in order to take into account the size
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4327 * variations. Note that the current state is >= HTTP_MSG_BODY,
4328 * so we don't have to adjust ->sol.
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4329 */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]4330 old_o += ci_data(chn) - old_i;
Willy Tarreaubcbd3932018-06-06 07:13:22 +0200[diff] [blame]4331 c_adv(chn, old_o);
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4332 txn->req.next -= old_o;
4333 txn->req.sov -= old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4334 }
4335
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4336 return 0;
4337}
4338
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4339/* Terminate current transaction and prepare a new one. This is very tricky
4340 * right now but it works.
4341 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4342void http_end_txn_clean_session(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4343{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4344 int prev_status = s->txn->status;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]4345 struct proxy *fe = strm_fe(s);
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4346 struct proxy *be = s->be;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4347 struct conn_stream *cs;
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4348 struct connection *srv_conn;
4349 struct server *srv;
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4350 unsigned int prev_flags = s->txn->flags;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4351
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4352 /* FIXME: We need a more portable way of releasing a backend's and a
4353 * server's connections. We need a safer way to reinitialize buffer
4354 * flags. We also need a more accurate method for computing per-request
4355 * data.
4356 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4357 /*
4358 * XXX cognet: This is probably wrong, this is killing a whole
4359 * connection, in the new world order, we probably want to just kill
4360 * the stream, this is to be revisited the day we handle multiple
4361 * streams in one server connection.
4362 */
4363 cs = objt_cs(s->si[1].end);
4364 srv_conn = cs_conn(cs);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4365
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4366 /* unless we're doing keep-alive, we want to quickly close the connection
4367 * to the server.
4368 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4369 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4370 !si_conn_ready(&s->si[1])) {
4371 s->si[1].flags |= SI_FL_NOLINGER | SI_FL_NOHALF;
4372 si_shutr(&s->si[1]);
4373 si_shutw(&s->si[1]);
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4374 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4375
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4376 if (s->flags & SF_BE_ASSIGNED) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4377 HA_ATOMIC_SUB(&be->beconn, 1);
Willy Tarreau2d5cd472012-03-01 23:34:37 +0100[diff] [blame]4378 if (unlikely(s->srv_conn))
4379 sess_change_server(s, NULL);
4380 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4381
4382 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4383 stream_process_counters(s);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4384
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4385 if (s->txn->status) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4386 int n;
4387
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4388 n = s->txn->status / 100;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4389 if (n < 1 || n > 5)
4390 n = 0;
4391
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4392 if (fe->mode == PR_MODE_HTTP) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4393 HA_ATOMIC_ADD(&fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4394 }
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4395 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4396 (be->mode == PR_MODE_HTTP)) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4397 HA_ATOMIC_ADD(&be->be_counters.p.http.rsp[n], 1);
4398 HA_ATOMIC_ADD(&be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4399 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4400 }
4401
4402 /* don't count other requests' data */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]4403 s->logs.bytes_in -= ci_data(&s->req);
4404 s->logs.bytes_out -= ci_data(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4405
Willy Tarreau66425e32018-07-25 06:55:12 +0200[diff] [blame]4406 /* we may need to know the position in the queue */
4407 pendconn_free(s);
4408
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4409 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4410 if (!LIST_ISEMPTY(&fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4411 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4412 (!(fe->options & PR_O_NULLNOLOG) || s->req.total)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4413 s->do_log(s);
4414 }
4415
Willy Tarreaud713bcc2014-06-25 15:36:04 +0200[diff] [blame]4416 /* stop tracking content-based counters */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4417 stream_stop_content_counters(s);
4418 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +0200[diff] [blame]4419
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4420 s->logs.accept_date = date; /* user-visible date for logging */
4421 s->logs.tv_accept = now; /* corrected date for internal use */
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200[diff] [blame]4422 s->logs.t_handshake = 0; /* There are no handshake in keep alive connection. */
4423 s->logs.t_idle = -1;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4424 tv_zero(&s->logs.tv_request);
4425 s->logs.t_queue = -1;
4426 s->logs.t_connect = -1;
4427 s->logs.t_data = -1;
4428 s->logs.t_close = 0;
Patrick Hemmerffe5e8c2018-05-11 12:52:31 -0400[diff] [blame]4429 s->logs.prx_queue_pos = 0; /* we get the number of pending conns before us */
4430 s->logs.srv_queue_pos = 0; /* we will get this number soon */
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4431
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]4432 s->logs.bytes_in = s->req.total = ci_data(&s->req);
4433 s->logs.bytes_out = s->res.total = ci_data(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4434
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4435 if (objt_server(s->target)) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4436 if (s->flags & SF_CURR_SESS) {
4437 s->flags &= ~SF_CURR_SESS;
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4438 HA_ATOMIC_SUB(&objt_server(s->target)->cur_sess, 1);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4439 }
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4440 if (may_dequeue_tasks(objt_server(s->target), be))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4441 process_srv_queue(objt_server(s->target));
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4442 }
4443
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4444 s->target = NULL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4445
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4446 /* only release our endpoint if we don't intend to reuse the
4447 * connection.
4448 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4449 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4450 !si_conn_ready(&s->si[1])) {
4451 si_release_endpoint(&s->si[1]);
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4452 srv_conn = NULL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4453 }
4454
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4455 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
4456 s->si[1].err_type = SI_ET_NONE;
4457 s->si[1].conn_retries = 0; /* used for logging too */
4458 s->si[1].exp = TICK_ETERNITY;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4459 s->si[1].flags &= SI_FL_ISBACK | SI_FL_DONT_WAKE; /* we're in the context of process_stream */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4460 s->req.flags &= ~(CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CONNECT|CF_WRITE_ERROR|CF_STREAMER|CF_STREAMER_FAST|CF_NEVER_WAIT|CF_WAKE_CONNECT|CF_WROTE_DATA);
Christopher Fauletc5a9d5b2017-11-09 09:36:43 +0100[diff] [blame]4461 s->res.flags &= ~(CF_SHUTR|CF_SHUTR_NOW|CF_READ_ATTACHED|CF_READ_ERROR|CF_READ_NOEXP|CF_STREAMER|CF_STREAMER_FAST|CF_WRITE_PARTIAL|CF_NEVER_WAIT|CF_WROTE_DATA|CF_WRITE_EVENT);
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4462 s->flags &= ~(SF_DIRECT|SF_ASSIGNED|SF_ADDR_SET|SF_BE_ASSIGNED|SF_FORCE_PRST|SF_IGNORE_PRST);
4463 s->flags &= ~(SF_CURR_SESS|SF_REDIRECTABLE|SF_SRV_REUSED);
4464 s->flags &= ~(SF_ERR_MASK|SF_FINST_MASK|SF_REDISP);
Willy Tarreau543db622012-11-15 16:41:22 +0100[diff] [blame]4465
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4466 s->txn->meth = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4467 http_reset_txn(s);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4468 s->txn->flags |= TX_NOT_FIRST | TX_WAIT_NEXT_RQ;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4469
4470 if (prev_status == 401 || prev_status == 407) {
4471 /* In HTTP keep-alive mode, if we receive a 401, we still have
4472 * a chance of being able to send the visitor again to the same
4473 * server over the same connection. This is required by some
4474 * broken protocols such as NTLM, and anyway whenever there is
4475 * an opportunity for sending the challenge to the proper place,
4476 * it's better to do it (at least it helps with debugging).
4477 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4478 s->txn->flags |= TX_PREFER_LAST;
Willy Tarreaubd99d582015-09-02 10:40:43 +0200[diff] [blame]4479 if (srv_conn)
4480 srv_conn->flags |= CO_FL_PRIVATE;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4481 }
4482
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4483 /* Never ever allow to reuse a connection from a non-reuse backend */
4484 if (srv_conn && (be->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
4485 srv_conn->flags |= CO_FL_PRIVATE;
4486
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4487 if (fe->options2 & PR_O2_INDEPSTR)
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4488 s->si[1].flags |= SI_FL_INDEP_STR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4489
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4490 if (fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4491 s->req.flags |= CF_NEVER_WAIT;
4492 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200[diff] [blame]4493 }
4494
Willy Tarreau714ea782015-11-25 20:11:11 +0100[diff] [blame]4495 /* we're removing the analysers, we MUST re-enable events detection.
4496 * We don't enable close on the response channel since it's either
4497 * already closed, or in keep-alive with an idle connection handler.
4498 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4499 channel_auto_read(&s->req);
4500 channel_auto_close(&s->req);
4501 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4502
Willy Tarreau1c59bd52015-11-02 20:20:11 +0100[diff] [blame]4503 /* we're in keep-alive with an idle connection, monitor it if not already done */
4504 if (srv_conn && LIST_ISEMPTY(&srv_conn->list)) {
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4505 srv = objt_server(srv_conn->target);
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4506 if (!srv)
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4507 si_idle_cs(&s->si[1], NULL);
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4508 else if (srv_conn->flags & CO_FL_PRIVATE)
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4509 si_idle_cs(&s->si[1], (srv->priv_conns ? &srv->priv_conns[tid] : NULL));
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4510 else if (prev_flags & TX_NOT_FIRST)
4511 /* note: we check the request, not the connection, but
4512 * this is valid for strategies SAFE and AGGR, and in
4513 * case of ALWS, we don't care anyway.
4514 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4515 si_idle_cs(&s->si[1], (srv->safe_conns ? &srv->safe_conns[tid] : NULL));
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4516 else
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4517 si_idle_cs(&s->si[1], (srv->idle_conns ? &srv->idle_conns[tid] : NULL));
Willy Tarreau4320eaa2015-08-05 11:08:30 +0200[diff] [blame]4518 }
Christopher Faulete6006242017-03-10 11:52:44 +0100[diff] [blame]4519 s->req.analysers = strm_li(s) ? strm_li(s)->analysers : 0;
4520 s->res.analysers = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4521}
4522
4523
4524/* This function updates the request state machine according to the response
4525 * state machine and buffer flags. It returns 1 if it changes anything (flag
4526 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4527 * it is only used to find when a request/response couple is complete. Both
4528 * this function and its equivalent should loop until both return zero. It
4529 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4530 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4531int http_sync_req_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4532{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4533 struct channel *chn = &s->req;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4534 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4535 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4536 unsigned int old_state = txn->req.msg_state;
4537
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4538 if (unlikely(txn->req.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4539 return 0;
4540
4541 if (txn->req.msg_state == HTTP_MSG_DONE) {
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4542 /* No need to read anymore, the request was completely parsed.
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4543 * We can shut the read side unless we want to abort_on_close,
4544 * or we have a POST request. The issue with POST requests is
4545 * that some browsers still send a CRLF after the request, and
4546 * this CRLF must be read so that it does not remain in the kernel
4547 * buffers, otherwise a close could cause an RST on some systems
4548 * (eg: Linux).
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4549 * Note that if we're using keep-alive on the client side, we'd
4550 * rather poll now and keep the polling enabled for the whole
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4551 * stream's life than enabling/disabling it between each
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4552 * response and next request.
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4553 */
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4554 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4555 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]4556 (!(s->be->options & PR_O_ABRT_CLOSE) ||
4557 (s->si[0].flags & SI_FL_CLEAN_ABRT)) &&
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4558 txn->meth != HTTP_METH_POST)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4559 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4560
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4561 /* if the server closes the connection, we want to immediately react
4562 * and close the socket to save packets and syscalls.
4563 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4564 s->si[1].flags |= SI_FL_NOHALF;
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4565
Willy Tarreau7f876a12015-11-18 11:59:55 +0100[diff] [blame]4566 /* In any case we've finished parsing the request so we must
4567 * disable Nagle when sending data because 1) we're not going
4568 * to shut this side, and 2) the server is waiting for us to
4569 * send pending data.
4570 */
4571 chn->flags |= CF_NEVER_WAIT;
4572
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4573 if (txn->rsp.msg_state == HTTP_MSG_ERROR)
4574 goto wait_other_side;
4575
4576 if (txn->rsp.msg_state < HTTP_MSG_DONE) {
4577 /* The server has not finished to respond, so we
4578 * don't want to move in order not to upset it.
4579 */
4580 goto wait_other_side;
4581 }
4582
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4583 /* When we get here, it means that both the request and the
4584 * response have finished receiving. Depending on the connection
4585 * mode, we'll have to wait for the last bytes to leave in either
4586 * direction, and sometimes for a close to be effective.
4587 */
4588
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4589 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4590 /* Server-close mode : queue a connection close to the server */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4591 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW)))
4592 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4593 }
4594 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4595 /* Option forceclose is set, or either side wants to close,
4596 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4597 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4598 * once both states are CLOSED.
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4599 *
4600 * However, there is an exception if the response
4601 * length is undefined. In this case, we need to wait
4602 * the close from the server. The response will be
4603 * switched in TUNNEL mode until the end.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4604 */
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4605 if (!(txn->rsp.flags & HTTP_MSGF_XFER_LEN) &&
4606 txn->rsp.msg_state != HTTP_MSG_CLOSED)
4607 goto check_channel_flags;
4608
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4609 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
4610 channel_shutr_now(chn);
4611 channel_shutw_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4612 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4613 }
4614 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4615 /* The last possible modes are keep-alive and tunnel. Tunnel mode
4616 * will not have any analyser so it needs to poll for reads.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4617 */
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4618 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN) {
4619 channel_auto_read(chn);
4620 txn->req.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4621 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4622 }
4623
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4624 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4625 }
4626
4627 if (txn->req.msg_state == HTTP_MSG_CLOSING) {
4628 http_msg_closing:
4629 /* nothing else to forward, just waiting for the output buffer
4630 * to be empty and for the shutw_now to take effect.
4631 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4632 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4633 txn->req.msg_state = HTTP_MSG_CLOSED;
4634 goto http_msg_closed;
4635 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4636 else if (chn->flags & CF_SHUTW) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4637 txn->req.err_state = txn->req.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4638 txn->req.msg_state = HTTP_MSG_ERROR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4639 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4640 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4641 }
4642
4643 if (txn->req.msg_state == HTTP_MSG_CLOSED) {
4644 http_msg_closed:
Willy Tarreau80593512017-12-14 10:43:31 +0100[diff] [blame]4645 /* if we don't know whether the server will close, we need to hard close */
4646 if (txn->rsp.flags & HTTP_MSGF_XFER_LEN)
4647 s->si[1].flags |= SI_FL_NOLINGER; /* we want to close ASAP */
4648
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4649 /* see above in MSG_DONE why we only do this in these states */
4650 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4651 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]4652 (!(s->be->options & PR_O_ABRT_CLOSE) ||
4653 (s->si[0].flags & SI_FL_CLEAN_ABRT)))
Willy Tarreau2e7a1652013-12-15 15:32:10 +0100[diff] [blame]4654 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4655 goto wait_other_side;
4656 }
4657
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4658 check_channel_flags:
4659 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4660 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4661 /* if we've just closed an output, let's switch */
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4662 txn->req.msg_state = HTTP_MSG_CLOSING;
4663 goto http_msg_closing;
4664 }
4665
4666
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4667 wait_other_side:
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4668 return txn->req.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4669}
4670
4671
4672/* This function updates the response state machine according to the request
4673 * state machine and buffer flags. It returns 1 if it changes anything (flag
4674 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4675 * it is only used to find when a request/response couple is complete. Both
4676 * this function and its equivalent should loop until both return zero. It
4677 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4678 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4679int http_sync_res_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4680{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4681 struct channel *chn = &s->res;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4682 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4683 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4684 unsigned int old_state = txn->rsp.msg_state;
4685
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4686 if (unlikely(txn->rsp.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4687 return 0;
4688
4689 if (txn->rsp.msg_state == HTTP_MSG_DONE) {
4690 /* In theory, we don't need to read anymore, but we must
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4691 * still monitor the server connection for a possible close
4692 * while the request is being uploaded, so we don't disable
4693 * reading.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4694 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4695 /* channel_dont_read(chn); */
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4696
4697 if (txn->req.msg_state == HTTP_MSG_ERROR)
4698 goto wait_other_side;
4699
4700 if (txn->req.msg_state < HTTP_MSG_DONE) {
4701 /* The client seems to still be sending data, probably
4702 * because we got an error response during an upload.
4703 * We have the choice of either breaking the connection
4704 * or letting it pass through. Let's do the later.
4705 */
4706 goto wait_other_side;
4707 }
4708
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4709 /* When we get here, it means that both the request and the
4710 * response have finished receiving. Depending on the connection
4711 * mode, we'll have to wait for the last bytes to leave in either
4712 * direction, and sometimes for a close to be effective.
4713 */
4714
4715 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4716 /* Server-close mode : shut read and wait for the request
4717 * side to close its output buffer. The caller will detect
4718 * when we're in DONE and the other is in CLOSED and will
4719 * catch that for the final cleanup.
4720 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4721 if (!(chn->flags & (CF_SHUTR|CF_SHUTR_NOW)))
4722 channel_shutr_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4723 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4724 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4725 /* Option forceclose is set, or either side wants to close,
4726 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4727 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4728 * once both states are CLOSED.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4729 */
Christopher Fauletfd04fcf2018-02-02 15:54:15 +0100[diff] [blame]4730 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4731 channel_shutr_now(chn);
4732 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4733 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4734 }
4735 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4736 /* The last possible modes are keep-alive and tunnel. Tunnel will
4737 * need to forward remaining data. Keep-alive will need to monitor
4738 * for connection closing.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4739 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4740 channel_auto_read(chn);
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4741 chn->flags |= CF_NEVER_WAIT;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4742 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN)
4743 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4744 }
4745
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4746 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4747 }
4748
4749 if (txn->rsp.msg_state == HTTP_MSG_CLOSING) {
4750 http_msg_closing:
4751 /* nothing else to forward, just waiting for the output buffer
4752 * to be empty and for the shutw_now to take effect.
4753 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4754 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4755 txn->rsp.msg_state = HTTP_MSG_CLOSED;
4756 goto http_msg_closed;
4757 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4758 else if (chn->flags & CF_SHUTW) {
Christopher Fauleta3992e02017-07-18 10:35:55 +0200[diff] [blame]4759 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4760 txn->rsp.msg_state = HTTP_MSG_ERROR;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4761 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4762 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4763 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4764 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4765 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4766 }
4767
4768 if (txn->rsp.msg_state == HTTP_MSG_CLOSED) {
4769 http_msg_closed:
4770 /* drop any pending data */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]4771 channel_truncate(chn);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4772 channel_auto_close(chn);
4773 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4774 goto wait_other_side;
4775 }
4776
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4777 check_channel_flags:
4778 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4779 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4780 /* if we've just closed an output, let's switch */
4781 txn->rsp.msg_state = HTTP_MSG_CLOSING;
4782 goto http_msg_closing;
4783 }
4784
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4785 wait_other_side:
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4786 /* We force the response to leave immediately if we're waiting for the
4787 * other side, since there is no pending shutdown to push it out.
4788 */
4789 if (!channel_is_empty(chn))
4790 chn->flags |= CF_SEND_DONTWAIT;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4791 return txn->rsp.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4792}
4793
4794
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4795/* Resync the request and response state machines. */
4796void http_resync_states(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4797{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4798 struct http_txn *txn = s->txn;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4799#ifdef DEBUG_FULL
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4800 int old_req_state = txn->req.msg_state;
4801 int old_res_state = txn->rsp.msg_state;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4802#endif
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4803
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4804 http_sync_req_state(s);
4805 while (1) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4806 if (!http_sync_res_state(s))
4807 break;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4808 if (!http_sync_req_state(s))
4809 break;
4810 }
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]4811
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4812 DPRINTF(stderr,"[%u] %s: stream=%p old=%s,%s cur=%s,%s "
4813 "req->analysers=0x%08x res->analysers=0x%08x\n",
4814 now_ms, __FUNCTION__, s,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]4815 h1_msg_state_str(old_req_state), h1_msg_state_str(old_res_state),
4816 h1_msg_state_str(txn->req.msg_state), h1_msg_state_str(txn->rsp.msg_state),
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4817 s->req.analysers, s->res.analysers);
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4818
4819
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4820 /* OK, both state machines agree on a compatible state.
4821 * There are a few cases we're interested in :
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4822 * - HTTP_MSG_CLOSED on both sides means we've reached the end in both
4823 * directions, so let's simply disable both analysers.
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4824 * - HTTP_MSG_CLOSED on the response only or HTTP_MSG_ERROR on either
4825 * means we must abort the request.
4826 * - HTTP_MSG_TUNNEL on either means we have to disable analyser on
4827 * corresponding channel.
4828 * - HTTP_MSG_DONE or HTTP_MSG_CLOSED on the request and HTTP_MSG_DONE
4829 * on the response with server-close mode means we've completed one
4830 * request and we must re-initialize the server connection.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4831 */
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4832 if (txn->req.msg_state == HTTP_MSG_CLOSED &&
4833 txn->rsp.msg_state == HTTP_MSG_CLOSED) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4834 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4835 channel_auto_close(&s->req);
4836 channel_auto_read(&s->req);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4837 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4838 channel_auto_close(&s->res);
4839 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4840 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4841 else if (txn->rsp.msg_state == HTTP_MSG_CLOSED ||
4842 txn->rsp.msg_state == HTTP_MSG_ERROR ||
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4843 txn->req.msg_state == HTTP_MSG_ERROR) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4844 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4845 channel_auto_close(&s->res);
4846 channel_auto_read(&s->res);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4847 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4848 channel_abort(&s->req);
4849 channel_auto_close(&s->req);
4850 channel_auto_read(&s->req);
4851 channel_truncate(&s->req);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4852 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4853 else if (txn->req.msg_state == HTTP_MSG_TUNNEL ||
4854 txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4855 if (txn->req.msg_state == HTTP_MSG_TUNNEL) {
4856 s->req.analysers &= AN_REQ_FLT_END;
4857 if (HAS_REQ_DATA_FILTERS(s))
4858 s->req.analysers |= AN_REQ_FLT_XFER_DATA;
4859 }
4860 if (txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4861 s->res.analysers &= AN_RES_FLT_END;
4862 if (HAS_RSP_DATA_FILTERS(s))
4863 s->res.analysers |= AN_RES_FLT_XFER_DATA;
4864 }
4865 channel_auto_close(&s->req);
4866 channel_auto_read(&s->req);
4867 channel_auto_close(&s->res);
4868 channel_auto_read(&s->res);
4869 }
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4870 else if ((txn->req.msg_state == HTTP_MSG_DONE ||
4871 txn->req.msg_state == HTTP_MSG_CLOSED) &&
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4872 txn->rsp.msg_state == HTTP_MSG_DONE &&
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4873 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
4874 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
4875 /* server-close/keep-alive: terminate this transaction,
4876 * possibly killing the server connection and reinitialize
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4877 * a fresh-new transaction, but only once we're sure there's
4878 * enough room in the request and response buffer to process
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]4879 * another request. They must not hold any pending output data
4880 * and the response buffer must realigned
4881 * (realign is done is http_end_txn_clean_session).
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4882 */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]4883 if (co_data(&s->req))
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4884 s->req.flags |= CF_WAKE_WRITE;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]4885 else if (co_data(&s->res))
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4886 s->res.flags |= CF_WAKE_WRITE;
Christopher Fauleta81ff602017-07-18 22:01:05 +0200[diff] [blame]4887 else {
4888 s->req.analysers = AN_REQ_FLT_END;
4889 s->res.analysers = AN_RES_FLT_END;
4890 txn->flags |= TX_WAIT_CLEANUP;
4891 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4892 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4893}
4894
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4895/* This function is an analyser which forwards request body (including chunk
4896 * sizes if any). It is called as soon as we must forward, even if we forward
4897 * zero byte. The only situation where it must not be called is when we're in
4898 * tunnel mode and we want to forward till the close. It's used both to forward
4899 * remaining data and to resync after end of body. It expects the msg_state to
4900 * be between MSG_BODY and MSG_DONE (inclusive). It returns zero if it needs to
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4901 * read more data, or 1 once we can go on with next request or end the stream.
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]4902 * When in MSG_DATA or MSG_TRAILERS, it will automatically forward chunk_len
Willy Tarreauc24715e2014-04-17 15:21:20 +0200[diff] [blame]4903 * bytes of pending data + the headers if not already done.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4904 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4905int http_request_forward_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4906{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4907 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4908 struct http_txn *txn = s->txn;
4909 struct http_msg *msg = &s->txn->req;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]4910 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4911
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]4912 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%lu analysers=%02x\n",
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4913 now_ms, __FUNCTION__,
4914 s,
4915 req,
4916 req->rex, req->wex,
4917 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]4918 ci_data(req),
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4919 req->analysers);
4920
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4921 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
4922 return 0;
4923
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4924 if ((req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) ||
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]4925 ((req->flags & CF_SHUTW) && (req->to_forward || co_data(req)))) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4926 /* Output closed while we were sending data. We must abort and
4927 * wake the other side up.
4928 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4929 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4930 msg->msg_state = HTTP_MSG_ERROR;
4931 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]4932 return 1;
4933 }
4934
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4935 /* Note that we don't have to send 100-continue back because we don't
4936 * need the data to complete our job, and it's up to the server to
4937 * decide whether to return 100, 417 or anything else in return of
4938 * an "Expect: 100-continue" header.
4939 */
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4940 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4941 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
4942 ? HTTP_MSG_CHUNK_SIZE
4943 : HTTP_MSG_DATA);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4944
4945 /* TODO/filters: when http-buffer-request option is set or if a
4946 * rule on url_param exists, the first chunk size could be
4947 * already parsed. In that case, msg->next is after the chunk
4948 * size (including the CRLF after the size). So this case should
4949 * be handled to */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4950 }
4951
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4952 /* Some post-connect processing might want us to refrain from starting to
4953 * forward data. Currently, the only reason for this is "balance url_param"
4954 * whichs need to parse/process the request after we've enabled forwarding.
4955 */
4956 if (unlikely(msg->flags & HTTP_MSGF_WAIT_CONN)) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4957 if (!(s->res.flags & CF_READ_ATTACHED)) {
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4958 channel_auto_connect(req);
Willy Tarreau644c1012014-04-30 18:11:11 +0200[diff] [blame]4959 req->flags |= CF_WAKE_CONNECT;
Willy Tarreauba20dfc2018-05-16 11:35:05 +0200[diff] [blame]4960 channel_dont_close(req); /* don't fail on early shutr */
4961 goto waiting;
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4962 }
4963 msg->flags &= ~HTTP_MSGF_WAIT_CONN;
4964 }
4965
Willy Tarreau80a92c02014-03-12 10:41:13 +0100[diff] [blame]4966 /* in most states, we should abort in case of early close */
4967 channel_auto_close(req);
4968
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4969 if (req->to_forward) {
4970 /* We can't process the buffer's contents yet */
4971 req->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4972 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4973 }
4974
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4975 if (msg->msg_state < HTTP_MSG_DONE) {
4976 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
4977 ? http_msg_forward_chunked_body(s, msg)
4978 : http_msg_forward_body(s, msg));
4979 if (!ret)
4980 goto missing_data_or_waiting;
4981 if (ret < 0)
4982 goto return_bad_req;
4983 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4984
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4985 /* other states, DONE...TUNNEL */
4986 /* we don't want to forward closes on DONE except in tunnel mode. */
4987 if ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
4988 channel_dont_close(req);
Willy Tarreau5c54c712010-07-17 08:02:58 +0200[diff] [blame]4989
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4990 http_resync_states(s);
4991 if (!(req->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4992 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
4993 if (req->flags & CF_SHUTW) {
4994 /* request errors are most likely due to the
4995 * server aborting the transfer. */
4996 goto aborted_xfer;
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4997 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4998 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]4999 http_capture_bad_message(sess->fe, &sess->fe->invalid_req, s, msg, msg->err_state, s->be);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5000 goto return_bad_req;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5001 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5002 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5003 }
5004
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5005 /* If "option abortonclose" is set on the backend, we want to monitor
5006 * the client's connection and forward any shutdown notification to the
5007 * server, which will decide whether to close or to go on processing the
5008 * request. We only do that in tunnel mode, and not in other modes since
5009 * it can be abused to exhaust source ports. */
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]5010 if ((s->be->options & PR_O_ABRT_CLOSE) && !(s->si[0].flags & SI_FL_CLEAN_ABRT)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5011 channel_auto_read(req);
5012 if ((req->flags & (CF_SHUTR|CF_READ_NULL)) &&
5013 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN))
5014 s->si[1].flags |= SI_FL_NOLINGER;
5015 channel_auto_close(req);
5016 }
5017 else if (s->txn->meth == HTTP_METH_POST) {
5018 /* POST requests may require to read extra CRLF sent by broken
5019 * browsers and which could cause an RST to be sent upon close
5020 * on some systems (eg: Linux). */
5021 channel_auto_read(req);
5022 }
5023 return 0;
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]5024
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5025 missing_data_or_waiting:
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5026 /* stop waiting for data if the input is closed before the end */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]5027 if (msg->msg_state < HTTP_MSG_ENDING && req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5028 if (!(s->flags & SF_ERR_MASK))
5029 s->flags |= SF_ERR_CLICL;
5030 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5031 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5032 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5033 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5034 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5035 }
5036
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5037 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
5038 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5039 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5040 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5041
5042 goto return_bad_req_stats_ok;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]5043 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5044
Willy Tarreauba20dfc2018-05-16 11:35:05 +0200[diff] [blame]5045 waiting:
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5046 /* waiting for the last bits to leave the buffer */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5047 if (req->flags & CF_SHUTW)
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5048 goto aborted_xfer;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5049
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]5050 /* When TE: chunked is used, we need to get there again to parse remaining
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5051 * chunks even if the client has closed, so we don't want to set CF_DONTCLOSE.
Willy Tarreauff47b3f2017-12-29 16:30:31 +0100[diff] [blame]5052 * And when content-length is used, we never want to let the possible
5053 * shutdown be forwarded to the other side, as the state machine will
5054 * take care of it once the client responds. It's also important to
5055 * prevent TIME_WAITs from accumulating on the backend side, and for
5056 * HTTP/2 where the last frame comes with a shutdown.
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]5057 */
Willy Tarreauff47b3f2017-12-29 16:30:31 +0100[diff] [blame]5058 if (msg->flags & (HTTP_MSGF_TE_CHNK|HTTP_MSGF_CNT_LEN))
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5059 channel_dont_close(req);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]5060
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5061 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5062 * what we did. So we always set the CF_EXPECT_MORE flag so that the
Willy Tarreau07293032011-05-30 18:29:28 +0200[diff] [blame]5063 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]5064 * modes are already handled by the stream sock layer. We must not do
5065 * this in content-length mode because it could present the MSG_MORE
5066 * flag with the last block of forwarded data, which would cause an
5067 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5068 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5069 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5070 req->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5071
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5072 return 0;
5073
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5074 return_bad_req: /* let's centralize all bad requests */
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5075 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5076 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]5077 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]5078
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5079 return_bad_req_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5080 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5081 txn->req.msg_state = HTTP_MSG_ERROR;
5082 if (txn->status) {
5083 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5084 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5085 } else {
5086 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5087 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5088 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5089 req->analysers &= AN_REQ_FLT_END;
5090 s->res.analysers &= AN_RES_FLT_END; /* we're in data phase, we want to abort both directions */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5091
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5092 if (!(s->flags & SF_ERR_MASK))
5093 s->flags |= SF_ERR_PRXCOND;
5094 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5095 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5096 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5097 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5098 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5099 }
5100 return 0;
5101
5102 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5103 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5104 txn->req.msg_state = HTTP_MSG_ERROR;
5105 if (txn->status) {
5106 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5107 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5108 } else {
5109 txn->status = 502;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5110 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5111 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5112 req->analysers &= AN_REQ_FLT_END;
5113 s->res.analysers &= AN_RES_FLT_END; /* we're in data phase, we want to abort both directions */
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5114
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5115 HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
5116 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5117 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5118 HA_ATOMIC_ADD(&objt_server(s->target)->counters.srv_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5119
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5120 if (!(s->flags & SF_ERR_MASK))
5121 s->flags |= SF_ERR_SRVCL;
5122 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5123 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5124 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5125 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5126 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5127 }
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5128 return 0;
5129}
5130
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5131/* This stream analyser waits for a complete HTTP response. It returns 1 if the
5132 * processing can continue on next analysers, or zero if it either needs more
5133 * data or wants to immediately abort the response (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5134 * is tied to AN_RES_WAIT_HTTP and may may remove itself from s->res.analysers
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5135 * when it has nothing left to do, and may remove any analyser when it wants to
5136 * abort.
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5137 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5138int http_wait_for_response(struct stream *s, struct channel *rep, int an_bit)
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5139{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5140 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5141 struct http_txn *txn = s->txn;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5142 struct http_msg *msg = &txn->rsp;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5143 struct hdr_ctx ctx;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5144 int use_close_only;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5145 int cur_idx;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5146 int n;
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]5147
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]5148 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%lu analysers=%02x\n",
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200[diff] [blame]5149 now_ms, __FUNCTION__,
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5150 s,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5151 rep,
5152 rep->rex, rep->wex,
5153 rep->flags,
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5154 ci_data(rep),
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5155 rep->analysers);
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200[diff] [blame]5156
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5157 /*
5158 * Now parse the partial (or complete) lines.
5159 * We will check the response syntax, and also join multi-line
5160 * headers. An index of all the lines will be elaborated while
5161 * parsing.
5162 *
5163 * For the parsing, we use a 28 states FSM.
5164 *
5165 * Here is the information we currently have :
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5166 * ci_head(rep) = beginning of response
5167 * ci_head(rep) + msg->eoh = end of processed headers / start of current one
5168 * ci_tail(rep) = end of input data
5169 * msg->eol = end of current header or line (LF or CRLF)
5170 * msg->next = first non-visited byte
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5171 */
5172
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5173 next_one:
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5174 /* There's a protected area at the end of the buffer for rewriting
5175 * purposes. We don't want to start to parse the request if the
5176 * protected area is affected, because we may have to move processed
5177 * data later, which is much more complicated.
5178 */
Willy Tarreaud760eec2018-07-10 09:50:25 +0200[diff] [blame]5179 if (c_data(rep) && msg->msg_state < HTTP_MSG_ERROR) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]5180 if (unlikely(!channel_is_rewritable(rep))) {
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5181 /* some data has still not left the buffer, wake us once that's done */
5182 if (rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
5183 goto abort_response;
5184 channel_dont_close(rep);
5185 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]5186 rep->flags |= CF_WAKE_WRITE;
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5187 return 0;
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5188 }
5189
Willy Tarreau188e2302018-06-15 11:11:53 +0200[diff] [blame]5190 if (unlikely(ci_tail(rep) < c_ptr(rep, msg->next) ||
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]5191 ci_tail(rep) > b_wrap(&rep->buf) - global.tune.maxrewrite))
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]5192 channel_slow_realign(rep, trash.area);
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5193
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5194 if (likely(msg->next < ci_data(rep)))
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]5195 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5196 }
5197
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5198 /* 1: we might have to print this header in debug mode */
5199 if (unlikely((global.mode & MODE_DEBUG) &&
5200 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]5201 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5202 char *eol, *sol;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5203
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5204 sol = ci_head(rep);
5205 eol = sol + (msg->sl.st.l ? msg->sl.st.l : ci_data(rep));
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5206 debug_hdr("srvrep", s, sol, eol);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5207
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5208 sol += hdr_idx_first_pos(&txn->hdr_idx);
5209 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5210
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5211 while (cur_idx) {
5212 eol = sol + txn->hdr_idx.v[cur_idx].len;
5213 debug_hdr("srvhdr", s, sol, eol);
5214 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
5215 cur_idx = txn->hdr_idx.v[cur_idx].next;
5216 }
5217 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5218
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5219 /*
5220 * Now we quickly check if we have found a full valid response.
5221 * If not so, we check the FD and buffer states before leaving.
5222 * A full response is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5223 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5224 * responses are checked first.
5225 *
5226 * Depending on whether the client is still there or not, we
5227 * may send an error response back or not. Note that normally
5228 * we should only check for HTTP status there, and check I/O
5229 * errors somewhere else.
5230 */
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5231
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5232 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5233 /* Invalid response */
5234 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
5235 /* we detected a parsing error. We want to archive this response
5236 * in the dedicated proxy area for later troubleshooting.
5237 */
5238 hdr_response_bad:
5239 if (msg->msg_state == HTTP_MSG_ERROR || msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5240 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5241
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5242 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5243 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5244 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5245 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5246 }
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]5247 abort_response:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5248 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5249 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5250 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5251 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5252 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5253 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5254
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5255 if (!(s->flags & SF_ERR_MASK))
5256 s->flags |= SF_ERR_PRXCOND;
5257 if (!(s->flags & SF_FINST_MASK))
5258 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5259
5260 return 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5261 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5262
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5263 /* too large response does not fit in buffer. */
Willy Tarreau23752332018-06-15 14:54:53 +0200[diff] [blame]5264 else if (channel_full(rep, global.tune.maxrewrite)) {
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]5265 if (msg->err_pos < 0)
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5266 msg->err_pos = ci_data(rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5267 goto hdr_response_bad;
5268 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5269
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5270 /* read error */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5271 else if (rep->flags & CF_READ_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5272 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5273 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]5274 else if (txn->flags & TX_NOT_FIRST)
5275 goto abort_keep_alive;
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5276
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5277 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5278 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5279 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5280 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_ERROR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5281 }
Willy Tarreau461f6622008-08-15 23:43:19 +0200[diff] [blame]5282
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5283 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5284 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5285 txn->status = 502;
Olivier Houchard522eea72017-11-03 16:27:47 +0100[diff] [blame]5286
5287 /* Check to see if the server refused the early data.
5288 * If so, just send a 425
5289 */
5290 if (objt_cs(s->si[1].end)) {
5291 struct connection *conn = objt_cs(s->si[1].end)->conn;
5292
5293 if (conn->err_code == CO_ER_SSL_EARLY_FAILED)
5294 txn->status = 425;
5295 }
5296
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5297 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5298 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5299 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau816b9792009-09-15 21:25:21 +0200[diff] [blame]5300
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5301 if (!(s->flags & SF_ERR_MASK))
5302 s->flags |= SF_ERR_SRVCL;
5303 if (!(s->flags & SF_FINST_MASK))
5304 s->flags |= SF_FINST_H;
Willy Tarreaucebf57e2008-08-15 18:16:37 +0200[diff] [blame]5305 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5306 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5307
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +0200[diff] [blame]5308 /* read timeout : return a 504 to the client. */
5309 else if (rep->flags & CF_READ_TIMEOUT) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5310 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5311 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5312
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5313 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5314 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5315 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5316 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_TIMEOUT);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5317 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5318
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5319 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5320 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5321 txn->status = 504;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5322 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5323 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5324 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5325
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5326 if (!(s->flags & SF_ERR_MASK))
5327 s->flags |= SF_ERR_SRVTO;
5328 if (!(s->flags & SF_FINST_MASK))
5329 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5330 return 0;
5331 }
Willy Tarreaua7c52762008-08-16 18:40:18 +0200[diff] [blame]5332
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5333 /* client abort with an abortonclose */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5334 else if ((rep->flags & CF_SHUTR) && ((s->req.flags & (CF_SHUTR|CF_SHUTW)) == (CF_SHUTR|CF_SHUTW))) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5335 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
5336 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5337 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5338 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5339
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5340 rep->analysers &= AN_RES_FLT_END;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5341 channel_auto_close(rep);
5342
5343 txn->status = 400;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5344 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5345 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5346
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5347 if (!(s->flags & SF_ERR_MASK))
5348 s->flags |= SF_ERR_CLICL;
5349 if (!(s->flags & SF_FINST_MASK))
5350 s->flags |= SF_FINST_H;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5351
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5352 /* process_stream() will take care of the error */
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5353 return 0;
5354 }
5355
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5356 /* close from server, capture the response if the server has started to respond */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5357 else if (rep->flags & CF_SHUTR) {
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5358 if (msg->msg_state >= HTTP_MSG_RPVER || msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5359 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]5360 else if (txn->flags & TX_NOT_FIRST)
5361 goto abort_keep_alive;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5362
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5363 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5364 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5365 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5366 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_BROKEN_PIPE);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5367 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5368
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5369 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5370 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5371 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5372 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5373 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5374 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5375
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5376 if (!(s->flags & SF_ERR_MASK))
5377 s->flags |= SF_ERR_SRVCL;
5378 if (!(s->flags & SF_FINST_MASK))
5379 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5380 return 0;
5381 }
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5382
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5383 /* write error to client (we don't send any message then) */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5384 else if (rep->flags & CF_WRITE_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5385 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5386 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]5387 else if (txn->flags & TX_NOT_FIRST)
5388 goto abort_keep_alive;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5389
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5390 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5391 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5392 channel_auto_close(rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5393
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5394 if (!(s->flags & SF_ERR_MASK))
5395 s->flags |= SF_ERR_CLICL;
5396 if (!(s->flags & SF_FINST_MASK))
5397 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5398
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5399 /* process_stream() will take care of the error */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5400 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5401 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5402
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5403 channel_dont_close(rep);
Willy Tarreau3f3997e2013-12-15 15:21:32 +0100[diff] [blame]5404 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5405 return 0;
5406 }
5407
5408 /* More interesting part now : we know that we have a complete
5409 * response which at least looks like HTTP. We have an indicator
5410 * of each header's length, so we can parse them quickly.
5411 */
5412
5413 if (unlikely(msg->err_pos >= 0))
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5414 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5415
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5416 /*
5417 * 1: get the status code
5418 */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5419 n = ci_head(rep)[msg->sl.st.c] - '0';
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5420 if (n < 1 || n > 5)
5421 n = 0;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5422 /* when the client triggers a 4xx from the server, it's most often due
5423 * to a missing object or permission. These events should be tracked
5424 * because if they happen often, it may indicate a brute force or a
5425 * vulnerability scan.
5426 */
5427 if (n == 4)
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5428 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5429
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5430 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5431 HA_ATOMIC_ADD(&objt_server(s->target)->counters.p.http.rsp[n], 1);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5432
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]5433 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
5434 * exactly one digit "." one digit. This check may be disabled using
5435 * option accept-invalid-http-response.
5436 */
5437 if (!(s->be->options2 & PR_O2_RSPBUG_OK)) {
5438 if (msg->sl.st.v_l != 8) {
5439 msg->err_pos = 0;
5440 goto hdr_response_bad;
5441 }
5442
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5443 if (ci_head(rep)[4] != '/' ||
5444 !isdigit((unsigned char)ci_head(rep)[5]) ||
5445 ci_head(rep)[6] != '.' ||
5446 !isdigit((unsigned char)ci_head(rep)[7])) {
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]5447 msg->err_pos = 4;
5448 goto hdr_response_bad;
5449 }
5450 }
5451
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5452 /* check if the response is HTTP/1.1 or above */
5453 if ((msg->sl.st.v_l == 8) &&
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5454 ((ci_head(rep)[5] > '1') ||
5455 ((ci_head(rep)[5] == '1') && (ci_head(rep)[7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5456 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5457
5458 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]5459 txn->flags &= ~(TX_HDR_CONN_PRS|TX_HDR_CONN_CLO|TX_HDR_CONN_KAL|TX_HDR_CONN_UPG|TX_CON_CLO_SET|TX_CON_KAL_SET);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5460
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5461 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5462 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5463
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5464 txn->status = strl2ui(ci_head(rep) + msg->sl.st.c, msg->sl.st.c_l);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5465
Willy Tarreau39650402010-03-15 19:44:39 +0100[diff] [blame]5466 /* Adjust server's health based on status code. Note: status codes 501
5467 * and 505 are triggered on demand by client request, so we must not
5468 * count them as server failures.
5469 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5470 if (objt_server(s->target)) {
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5471 if (txn->status >= 100 && (txn->status < 500 || txn->status == 501 || txn->status == 505))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5472 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_OK);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5473 else
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5474 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_STS);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5475 }
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5476
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5477 /*
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5478 * We may be facing a 100-continue response, or any other informational
5479 * 1xx response which is non-final, in which case this is not the right
5480 * response, and we're waiting for the next one. Let's allow this response
5481 * to go to the client and wait for the next one. There's an exception for
5482 * 101 which is used later in the code to switch protocols.
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5483 */
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5484 if (txn->status < 200 &&
5485 (txn->status == 100 || txn->status >= 102)) {
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5486 hdr_idx_init(&txn->hdr_idx);
5487 msg->next -= channel_forward(rep, msg->next);
5488 msg->msg_state = HTTP_MSG_RPBEFORE;
5489 txn->status = 0;
5490 s->logs.t_data = -1; /* was not a response yet */
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5491 FLT_STRM_CB(s, flt_http_reset(s, msg));
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5492 goto next_one;
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5493 }
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5494
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5495 /*
5496 * 2: check for cacheability.
5497 */
5498
5499 switch (txn->status) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5500 case 200:
5501 case 203:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5502 case 204:
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5503 case 206:
5504 case 300:
5505 case 301:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5506 case 404:
5507 case 405:
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5508 case 410:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5509 case 414:
5510 case 501:
Willy Tarreau83ece462017-12-21 15:13:09 +0100[diff] [blame]5511 break;
5512 default:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5513 /* RFC7231#6.1:
5514 * Responses with status codes that are defined as
5515 * cacheable by default (e.g., 200, 203, 204, 206,
5516 * 300, 301, 404, 405, 410, 414, and 501 in this
5517 * specification) can be reused by a cache with
5518 * heuristic expiration unless otherwise indicated
5519 * by the method definition or explicit cache
5520 * controls [RFC7234]; all other status codes are
5521 * not cacheable by default.
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5522 */
Willy Tarreau83ece462017-12-21 15:13:09 +0100[diff] [blame]5523 txn->flags &= ~(TX_CACHEABLE | TX_CACHE_COOK);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5524 break;
5525 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5526
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5527 /*
5528 * 3: we may need to capture headers
5529 */
5530 s->logs.logwait &= ~LW_RESP;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5531 if (unlikely((s->logs.logwait & LW_RSPHDR) && s->res_cap))
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5532 capture_headers(ci_head(rep), &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5533 s->res_cap, sess->fe->rsp_cap);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5534
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5535 /* 4: determine the transfer-length according to RFC2616 #4.4, updated
5536 * by RFC7230#3.3.3 :
5537 *
5538 * The length of a message body is determined by one of the following
5539 * (in order of precedence):
5540 *
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5541 * 1. Any 2xx (Successful) response to a CONNECT request implies that
5542 * the connection will become a tunnel immediately after the empty
5543 * line that concludes the header fields. A client MUST ignore
5544 * any Content-Length or Transfer-Encoding header fields received
5545 * in such a message. Any 101 response (Switching Protocols) is
5546 * managed in the same manner.
5547 *
5548 * 2. Any response to a HEAD request and any response with a 1xx
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5549 * (Informational), 204 (No Content), or 304 (Not Modified) status
5550 * code is always terminated by the first empty line after the
5551 * header fields, regardless of the header fields present in the
5552 * message, and thus cannot contain a message body.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5553 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5554 * 3. If a Transfer-Encoding header field is present and the chunked
5555 * transfer coding (Section 4.1) is the final encoding, the message
5556 * body length is determined by reading and decoding the chunked
5557 * data until the transfer coding indicates the data is complete.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5558 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5559 * If a Transfer-Encoding header field is present in a response and
5560 * the chunked transfer coding is not the final encoding, the
5561 * message body length is determined by reading the connection until
5562 * it is closed by the server. If a Transfer-Encoding header field
5563 * is present in a request and the chunked transfer coding is not
5564 * the final encoding, the message body length cannot be determined
5565 * reliably; the server MUST respond with the 400 (Bad Request)
5566 * status code and then close the connection.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5567 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5568 * If a message is received with both a Transfer-Encoding and a
5569 * Content-Length header field, the Transfer-Encoding overrides the
5570 * Content-Length. Such a message might indicate an attempt to
5571 * perform request smuggling (Section 9.5) or response splitting
5572 * (Section 9.4) and ought to be handled as an error. A sender MUST
5573 * remove the received Content-Length field prior to forwarding such
5574 * a message downstream.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5575 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5576 * 4. If a message is received without Transfer-Encoding and with
5577 * either multiple Content-Length header fields having differing
5578 * field-values or a single Content-Length header field having an
5579 * invalid value, then the message framing is invalid and the
5580 * recipient MUST treat it as an unrecoverable error. If this is a
5581 * request message, the server MUST respond with a 400 (Bad Request)
5582 * status code and then close the connection. If this is a response
5583 * message received by a proxy, the proxy MUST close the connection
5584 * to the server, discard the received response, and send a 502 (Bad
5585 * Gateway) response to the client. If this is a response message
5586 * received by a user agent, the user agent MUST close the
5587 * connection to the server and discard the received response.
5588 *
5589 * 5. If a valid Content-Length header field is present without
5590 * Transfer-Encoding, its decimal value defines the expected message
5591 * body length in octets. If the sender closes the connection or
5592 * the recipient times out before the indicated number of octets are
5593 * received, the recipient MUST consider the message to be
5594 * incomplete and close the connection.
5595 *
5596 * 6. If this is a request message and none of the above are true, then
5597 * the message body length is zero (no message body is present).
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5598 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5599 * 7. Otherwise, this is a response message without a declared message
5600 * body length, so the message body length is determined by the
5601 * number of octets received prior to the server closing the
5602 * connection.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5603 */
5604
5605 /* Skip parsing if no content length is possible. The response flags
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5606 * remain 0 as well as the chunk_len, which may or may not mirror
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5607 * the real header value, and we note that we know the response's length.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5608 * FIXME: should we parse anyway and return an error on chunked encoding ?
5609 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5610 if (unlikely((txn->meth == HTTP_METH_CONNECT && txn->status == 200) ||
5611 txn->status == 101)) {
5612 /* Either we've established an explicit tunnel, or we're
5613 * switching the protocol. In both cases, we're very unlikely
5614 * to understand the next protocols. We have to switch to tunnel
5615 * mode, so that we transfer the request and responses then let
5616 * this protocol pass unmodified. When we later implement specific
5617 * parsers for such protocols, we'll want to check the Upgrade
5618 * header which contains information about that protocol for
5619 * responses with status 101 (eg: see RFC2817 about TLS).
5620 */
5621 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_TUN;
5622 msg->flags |= HTTP_MSGF_XFER_LEN;
5623 goto end;
5624 }
5625
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5626 if (txn->meth == HTTP_METH_HEAD ||
5627 (txn->status >= 100 && txn->status < 200) ||
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5628 txn->status == 204 || txn->status == 304) {
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5629 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5630 goto skip_content_length;
5631 }
5632
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5633 use_close_only = 0;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5634 ctx.idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5635 while (http_find_header2("Transfer-Encoding", 17, ci_head(rep), &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5636 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5637 msg->flags |= (HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
5638 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5639 /* bad transfer-encoding (chunked followed by something else) */
5640 use_close_only = 1;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5641 msg->flags &= ~(HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5642 break;
5643 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5644 }
5645
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5646 /* Chunked responses must have their content-length removed */
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5647 ctx.idx = 0;
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]5648 if (use_close_only || (msg->flags & HTTP_MSGF_TE_CHNK)) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5649 while (http_find_header2("Content-Length", 14, ci_head(rep), &txn->hdr_idx, &ctx))
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5650 http_remove_header2(msg, &txn->hdr_idx, &ctx);
5651 }
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5652 else while (http_find_header2("Content-Length", 14, ci_head(rep), &txn->hdr_idx, &ctx)) {
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5653 signed long long cl;
5654
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5655 if (!ctx.vlen) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5656 msg->err_pos = ctx.line + ctx.val - ci_head(rep);
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5657 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5658 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5659
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5660 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5661 msg->err_pos = ctx.line + ctx.val - ci_head(rep);
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5662 goto hdr_response_bad; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5663 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5664
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5665 if (cl < 0) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5666 msg->err_pos = ctx.line + ctx.val - ci_head(rep);
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5667 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5668 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5669
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5670 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5671 msg->err_pos = ctx.line + ctx.val - ci_head(rep);
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5672 goto hdr_response_bad; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5673 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5674
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5675 msg->flags |= HTTP_MSGF_CNT_LEN | HTTP_MSGF_XFER_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5676 msg->body_len = msg->chunk_len = cl;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5677 }
5678
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5679 skip_content_length:
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5680 /* Now we have to check if we need to modify the Connection header.
5681 * This is more difficult on the response than it is on the request,
5682 * because we can have two different HTTP versions and we don't know
5683 * how the client will interprete a response. For instance, let's say
5684 * that the client sends a keep-alive request in HTTP/1.0 and gets an
5685 * HTTP/1.1 response without any header. Maybe it will bound itself to
5686 * HTTP/1.0 because it only knows about it, and will consider the lack
5687 * of header as a close, or maybe it knows HTTP/1.1 and can consider
5688 * the lack of header as a keep-alive. Thus we will use two flags
5689 * indicating how a request MAY be understood by the client. In case
5690 * of multiple possibilities, we'll fix the header to be explicit. If
5691 * ambiguous cases such as both close and keepalive are seen, then we
5692 * will fall back to explicit close. Note that we won't take risks with
5693 * HTTP/1.0 clients which may not necessarily understand keep-alive.
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5694 * See doc/internals/connection-header.txt for the complete matrix.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5695 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5696 if ((txn->status >= 200) && !(txn->flags & TX_HDR_CONN_PRS) &&
5697 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN ||
5698 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
5699 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5700 int to_del = 0;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5701
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5702 /* this situation happens when combining pretend-keepalive with httpclose. */
5703 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5704 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5705 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5706 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
5707
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5708 /* on unknown transfer length, we must close */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5709 if (!(msg->flags & HTTP_MSGF_XFER_LEN) &&
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5710 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
5711 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5712
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5713 /* now adjust header transformations depending on current state */
5714 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN ||
5715 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
5716 to_del |= 2; /* remove "keep-alive" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5717 if (!(msg->flags & HTTP_MSGF_VER_11))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5718 to_del |= 1; /* remove "close" for HTTP/1.0 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5719 }
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5720 else { /* SCL / KAL */
5721 to_del |= 1; /* remove "close" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5722 if (txn->req.flags & msg->flags & HTTP_MSGF_VER_11)
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5723 to_del |= 2; /* remove "keep-alive" on pure 1.1 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5724 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5725
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5726 /* Parse and remove some headers from the connection header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]5727 http_parse_connection_header(txn, msg, to_del);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5728
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5729 /* Some keep-alive responses are converted to Server-close if
5730 * the server wants to close.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5731 */
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5732 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL) {
5733 if ((txn->flags & TX_HDR_CONN_CLO) ||
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5734 (!(txn->flags & TX_HDR_CONN_KAL) && !(msg->flags & HTTP_MSGF_VER_11)))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5735 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_SCL;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]5736 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5737 }
5738
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5739 end:
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5740 /* we want to have the response time before we start processing it */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5741 s->logs.t_data = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5742
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5743 /* end of job, return OK */
5744 rep->analysers &= ~an_bit;
5745 rep->analyse_exp = TICK_ETERNITY;
5746 channel_auto_close(rep);
5747 return 1;
5748
5749 abort_keep_alive:
5750 /* A keep-alive request to the server failed on a network error.
5751 * The client is required to retry. We need to close without returning
5752 * any other information so that the client retries.
5753 */
5754 txn->status = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5755 rep->analysers &= AN_RES_FLT_END;
5756 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5757 channel_auto_close(rep);
5758 s->logs.logwait = 0;
5759 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5760 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5761 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5762 http_reply_and_close(s, txn->status, NULL);
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5763 return 0;
5764}
5765
5766/* This function performs all the processing enabled for the current response.
5767 * It normally returns 1 unless it wants to break. It relies on buffers flags,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5768 * and updates s->res.analysers. It might make sense to explode it into several
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5769 * other functions. It works like process_request (see indications above).
5770 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5771int http_process_res_common(struct stream *s, struct channel *rep, int an_bit, struct proxy *px)
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5772{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5773 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5774 struct http_txn *txn = s->txn;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5775 struct http_msg *msg = &txn->rsp;
5776 struct proxy *cur_proxy;
5777 struct cond_wordlist *wl;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]5778 enum rule_result ret = HTTP_RULE_RES_CONT;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5779
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]5780 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%lu analysers=%02x\n",
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5781 now_ms, __FUNCTION__,
5782 s,
5783 rep,
5784 rep->rex, rep->wex,
5785 rep->flags,
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5786 ci_data(rep),
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5787 rep->analysers);
5788
5789 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) /* we need more data */
5790 return 0;
5791
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5792 /* The stats applet needs to adjust the Connection header but we don't
5793 * apply any filter there.
5794 */
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5795 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
5796 rep->analysers &= ~an_bit;
5797 rep->analyse_exp = TICK_ETERNITY;
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5798 goto skip_filters;
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5799 }
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5800
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5801 /*
5802 * We will have to evaluate the filters.
5803 * As opposed to version 1.2, now they will be evaluated in the
5804 * filters order and not in the header order. This means that
5805 * each filter has to be validated among all headers.
5806 *
5807 * Filters are tried with ->be first, then with ->fe if it is
5808 * different from ->be.
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5809 *
5810 * Maybe we are in resume condiion. In this case I choose the
5811 * "struct proxy" which contains the rule list matching the resume
5812 * pointer. If none of theses "struct proxy" match, I initialise
5813 * the process with the first one.
5814 *
5815 * In fact, I check only correspondance betwwen the current list
5816 * pointer and the ->fe rule list. If it doesn't match, I initialize
5817 * the loop with the ->be.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5818 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5819 if (s->current_rule_list == &sess->fe->http_res_rules)
5820 cur_proxy = sess->fe;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5821 else
5822 cur_proxy = s->be;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5823 while (1) {
5824 struct proxy *rule_set = cur_proxy;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5825
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5826 /* evaluate http-response rules */
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5827 if (ret == HTTP_RULE_RES_CONT) {
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]5828 ret = http_res_get_intercept_rule(cur_proxy, &cur_proxy->http_res_rules, s);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]5829
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5830 if (ret == HTTP_RULE_RES_BADREQ)
5831 goto return_srv_prx_502;
5832
5833 if (ret == HTTP_RULE_RES_DONE) {
5834 rep->analysers &= ~an_bit;
5835 rep->analyse_exp = TICK_ETERNITY;
5836 return 1;
5837 }
5838 }
5839
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5840 /* we need to be called again. */
5841 if (ret == HTTP_RULE_RES_YIELD) {
5842 channel_dont_close(rep);
5843 return 0;
5844 }
5845
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5846 /* try headers filters */
5847 if (rule_set->rsp_exp != NULL) {
5848 if (apply_filters_to_response(s, rep, rule_set) < 0) {
5849 return_bad_resp:
5850 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5851 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5852 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_RSP);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5853 }
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5854 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5855 return_srv_prx_502:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5856 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5857 txn->status = 502;
5858 s->logs.t_data = -1; /* was not a valid response */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5859 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5860 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5861 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5862 if (!(s->flags & SF_ERR_MASK))
5863 s->flags |= SF_ERR_PRXCOND;
5864 if (!(s->flags & SF_FINST_MASK))
5865 s->flags |= SF_FINST_H;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5866 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5867 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5868 }
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5869
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5870 /* has the response been denied ? */
5871 if (txn->flags & TX_SVDENY) {
5872 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5873 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_secu, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5874
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5875 HA_ATOMIC_ADD(&s->be->be_counters.denied_resp, 1);
5876 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_resp, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5877 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]5878 HA_ATOMIC_ADD(&sess->listener->counters->denied_resp, 1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5879
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5880 goto return_srv_prx_502;
5881 }
Willy Tarreau0bbc3cf2006-10-15 14:26:02 +0200[diff] [blame]5882
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5883 /* add response headers from the rule sets in the same order */
5884 list_for_each_entry(wl, &rule_set->rsp_add, list) {
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5885 if (txn->status < 200 && txn->status != 101)
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5886 break;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5887 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]5888 int ret = acl_exec_cond(wl->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5889 ret = acl_pass(ret);
5890 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
5891 ret = !ret;
5892 if (!ret)
5893 continue;
5894 }
5895 if (unlikely(http_header_add_tail(&txn->rsp, &txn->hdr_idx, wl->s) < 0))
5896 goto return_bad_resp;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5897 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5898
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5899 /* check whether we're already working on the frontend */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5900 if (cur_proxy == sess->fe)
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5901 break;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5902 cur_proxy = sess->fe;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5903 }
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5904
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5905 /* After this point, this anayzer can't return yield, so we can
5906 * remove the bit corresponding to this analyzer from the list.
5907 *
5908 * Note that the intermediate returns and goto found previously
5909 * reset the analyzers.
5910 */
5911 rep->analysers &= ~an_bit;
5912 rep->analyse_exp = TICK_ETERNITY;
5913
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5914 /* OK that's all we can do for 1xx responses */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5915 if (unlikely(txn->status < 200 && txn->status != 101))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5916 goto skip_header_mangling;
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5917
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5918 /*
5919 * Now check for a server cookie.
5920 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]5921 if (s->be->cookie_name || sess->fe->capture_name || (s->be->options & PR_O_CHK_CACHE))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5922 manage_server_side_cookies(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5923
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5924 /*
5925 * Check for cache-control or pragma headers if required.
5926 */
Willy Tarreau12b32f22017-12-21 16:08:09 +0100[diff] [blame]5927 if ((s->be->options & PR_O_CHK_CACHE) || (s->be->ck_opts & PR_CK_NOC))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5928 check_response_for_cacheability(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5929
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5930 /*
5931 * Add server cookie in the response if needed
5932 */
5933 if (objt_server(s->target) && (s->be->ck_opts & PR_CK_INS) &&
5934 !((txn->flags & TX_SCK_FOUND) && (s->be->ck_opts & PR_CK_PSV)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5935 (!(s->flags & SF_DIRECT) ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5936 ((s->be->cookie_maxidle || txn->cookie_last_date) &&
5937 (!txn->cookie_last_date || (txn->cookie_last_date - date.tv_sec) < 0)) ||
5938 (s->be->cookie_maxlife && !txn->cookie_first_date) || // set the first_date
5939 (!s->be->cookie_maxlife && txn->cookie_first_date)) && // remove the first_date
5940 (!(s->be->ck_opts & PR_CK_POST) || (txn->meth == HTTP_METH_POST)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5941 !(s->flags & SF_IGNORE_PRST)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5942 /* the server is known, it's not the one the client requested, or the
5943 * cookie's last seen date needs to be refreshed. We have to
5944 * insert a set-cookie here, except if we want to insert only on POST
5945 * requests and this one isn't. Note that servers which don't have cookies
5946 * (eg: some backup servers) will return a full cookie removal request.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5947 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5948 if (!objt_server(s->target)->cookie) {
5949 chunk_printf(&trash,
5950 "Set-Cookie: %s=; Expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/",
5951 s->be->cookie_name);
5952 }
5953 else {
5954 chunk_printf(&trash, "Set-Cookie: %s=%s", s->be->cookie_name, objt_server(s->target)->cookie);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5955
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5956 if (s->be->cookie_maxidle || s->be->cookie_maxlife) {
5957 /* emit last_date, which is mandatory */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]5958 trash.area[trash.data++] = COOKIE_DELIM_DATE;
5959 s30tob64((date.tv_sec+3) >> 2,
5960 trash.area + trash.data);
5961 trash.data += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5962
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5963 if (s->be->cookie_maxlife) {
5964 /* emit first_date, which is either the original one or
5965 * the current date.
5966 */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]5967 trash.area[trash.data++] = COOKIE_DELIM_DATE;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5968 s30tob64(txn->cookie_first_date ?
5969 txn->cookie_first_date >> 2 :
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]5970 (date.tv_sec+3) >> 2,
5971 trash.area + trash.data);
5972 trash.data += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5973 }
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5974 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5975 chunk_appendf(&trash, "; path=/");
5976 }
Willy Tarreau4992dd22012-05-31 21:02:17 +0200[diff] [blame]5977
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5978 if (s->be->cookie_domain)
5979 chunk_appendf(&trash, "; domain=%s", s->be->cookie_domain);
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5980
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5981 if (s->be->ck_opts & PR_CK_HTTPONLY)
5982 chunk_appendf(&trash, "; HttpOnly");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5983
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5984 if (s->be->ck_opts & PR_CK_SECURE)
5985 chunk_appendf(&trash, "; Secure");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5986
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]5987 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx, trash.area, trash.data) < 0))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5988 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5989
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5990 txn->flags &= ~TX_SCK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5991 if (objt_server(s->target)->cookie && (s->flags & SF_DIRECT))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5992 /* the server did not change, only the date was updated */
5993 txn->flags |= TX_SCK_UPDATED;
5994 else
5995 txn->flags |= TX_SCK_INSERTED;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5996
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5997 /* Here, we will tell an eventual cache on the client side that we don't
5998 * want it to cache this reply because HTTP/1.0 caches also cache cookies !
5999 * Some caches understand the correct form: 'no-cache="set-cookie"', but
6000 * others don't (eg: apache <= 1.3.26). So we use 'private' instead.
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6001 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6002 if ((s->be->ck_opts & PR_CK_NOC) && (txn->flags & TX_CACHEABLE)) {
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6003
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6004 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]6005
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6006 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx,
6007 "Cache-control: private", 22) < 0))
6008 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6009 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6010 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6011
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6012 /*
6013 * Check if result will be cacheable with a cookie.
6014 * We'll block the response if security checks have caught
6015 * nasty things such as a cacheable cookie.
6016 */
6017 if (((txn->flags & (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) ==
6018 (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) &&
6019 (s->be->options & PR_O_CHK_CACHE)) {
6020 /* we're in presence of a cacheable response containing
6021 * a set-cookie header. We'll block it as requested by
6022 * the 'checkcache' option, and send an alert.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6023 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6024 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6025 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_secu, 1);
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6026
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6027 HA_ATOMIC_ADD(&s->be->be_counters.denied_resp, 1);
6028 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_resp, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]6029 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]6030 HA_ATOMIC_ADD(&sess->listener->counters->denied_resp, 1);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6031
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]6032 ha_alert("Blocking cacheable cookie in response from instance %s, server %s.\n",
6033 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6034 send_log(s->be, LOG_ALERT,
6035 "Blocking cacheable cookie in response from instance %s, server %s.\n",
6036 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
6037 goto return_srv_prx_502;
6038 }
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]6039
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]6040 skip_filters:
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6041 /*
6042 * Adjust "Connection: close" or "Connection: keep-alive" if needed.
6043 * If an "Upgrade" token is found, the header is left untouched in order
6044 * not to have to deal with some client bugs : some of them fail an upgrade
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]6045 * if anything but "Upgrade" is present in the Connection header. We don't
6046 * want to touch any 101 response either since it's switching to another
6047 * protocol.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6048 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]6049 if ((txn->status != 101) && !(txn->flags & TX_HDR_CONN_UPG) &&
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6050 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6051 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6052 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
6053 unsigned int want_flags = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6054
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6055 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6056 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
6057 /* we want a keep-alive response here. Keep-alive header
6058 * required if either side is not 1.1.
6059 */
6060 if (!(txn->req.flags & msg->flags & HTTP_MSGF_VER_11))
6061 want_flags |= TX_CON_KAL_SET;
6062 }
6063 else {
6064 /* we want a close response here. Close header required if
6065 * the server is 1.1, regardless of the client.
6066 */
6067 if (msg->flags & HTTP_MSGF_VER_11)
6068 want_flags |= TX_CON_CLO_SET;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6069 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6070
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6071 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
6072 http_change_connection_header(txn, msg, want_flags);
6073 }
6074
6075 skip_header_mangling:
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6076 /* Always enter in the body analyzer */
6077 rep->analysers &= ~AN_RES_FLT_XFER_DATA;
6078 rep->analysers |= AN_RES_HTTP_XFER_BODY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6079
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6080 /* if the user wants to log as soon as possible, without counting
6081 * bytes from the server, then this is the right moment. We have
6082 * to temporarily assign bytes_out to log what we currently have.
6083 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6084 if (!LIST_ISEMPTY(&sess->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6085 s->logs.t_close = s->logs.t_data; /* to get a valid end date */
6086 s->logs.bytes_out = txn->rsp.eoh;
6087 s->do_log(s);
6088 s->logs.bytes_out = 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6089 }
Willy Tarreaue3fa6e52010-01-04 22:57:43 +0100[diff] [blame]6090 return 1;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6091}
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6092
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6093/* This function is an analyser which forwards response body (including chunk
6094 * sizes if any). It is called as soon as we must forward, even if we forward
6095 * zero byte. The only situation where it must not be called is when we're in
6096 * tunnel mode and we want to forward till the close. It's used both to forward
6097 * remaining data and to resync after end of body. It expects the msg_state to
6098 * be between MSG_BODY and MSG_DONE (inclusive). It returns zero if it needs to
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6099 * read more data, or 1 once we can go on with next request or end the stream.
Willy Tarreaud3510212014-04-21 11:24:13 +0200[diff] [blame]6100 *
6101 * It is capable of compressing response data both in content-length mode and
6102 * in chunked mode. The state machines follows different flows depending on
6103 * whether content-length and chunked modes are used, since there are no
6104 * trailers in content-length :
6105 *
6106 * chk-mode cl-mode
6107 * ,----- BODY -----.
6108 * / \
6109 * V size > 0 V chk-mode
6110 * .--> SIZE -------------> DATA -------------> CRLF
6111 * | | size == 0 | last byte |
6112 * | v final crlf v inspected |
6113 * | TRAILERS -----------> DONE |
6114 * | |
6115 * `----------------------------------------------'
6116 *
6117 * Compression only happens in the DATA state, and must be flushed in final
6118 * states (TRAILERS/DONE) or when leaving on missing data. Normal forwarding
6119 * is performed at once on final states for all bytes parsed, or when leaving
6120 * on missing data.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6121 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6122int http_response_forward_body(struct stream *s, struct channel *res, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6123{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6124 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6125 struct http_txn *txn = s->txn;
6126 struct http_msg *msg = &s->txn->rsp;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]6127 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6128
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]6129 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%lu analysers=%02x\n",
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]6130 now_ms, __FUNCTION__,
6131 s,
6132 res,
6133 res->rex, res->wex,
6134 res->flags,
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]6135 ci_data(res),
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]6136 res->analysers);
6137
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6138 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
6139 return 0;
6140
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6141 if ((res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) ||
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6142 ((res->flags & CF_SHUTW) && (res->to_forward || co_data(res))) ||
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6143 !s->req.analysers) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6144 /* Output closed while we were sending data. We must abort and
6145 * wake the other side up.
6146 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6147 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6148 msg->msg_state = HTTP_MSG_ERROR;
6149 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]6150 return 1;
6151 }
6152
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6153 /* in most states, we should abort in case of early close */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6154 channel_auto_close(res);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]6155
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6156 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6157 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
6158 ? HTTP_MSG_CHUNK_SIZE
6159 : HTTP_MSG_DATA);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6160 }
6161
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6162 if (res->to_forward) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6163 /* We can't process the buffer's contents yet */
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6164 res->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6165 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6166 }
6167
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6168 if (msg->msg_state < HTTP_MSG_DONE) {
6169 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
6170 ? http_msg_forward_chunked_body(s, msg)
6171 : http_msg_forward_body(s, msg));
6172 if (!ret)
6173 goto missing_data_or_waiting;
6174 if (ret < 0)
6175 goto return_bad_res;
6176 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6177
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6178 /* other states, DONE...TUNNEL */
6179 /* for keep-alive we don't want to forward closes on DONE */
6180 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6181 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
6182 channel_dont_close(res);
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]6183
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]6184 http_resync_states(s);
6185 if (!(res->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6186 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
6187 if (res->flags & CF_SHUTW) {
6188 /* response errors are most likely due to the
6189 * client aborting the transfer. */
6190 goto aborted_xfer;
Willy Tarreau5523b322009-12-29 12:05:52 +0100[diff] [blame]6191 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6192 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6193 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg, msg->err_state, strm_fe(s));
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6194 goto return_bad_res;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6195 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6196 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6197 }
Willy Tarreauf51d03c2016-05-02 15:25:15 +0200[diff] [blame]6198 return 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6199
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6200 missing_data_or_waiting:
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6201 if (res->flags & CF_SHUTW)
6202 goto aborted_xfer;
6203
6204 /* stop waiting for data if the input is closed before the end. If the
6205 * client side was already closed, it means that the client has aborted,
6206 * so we don't want to count this as a server abort. Otherwise it's a
6207 * server abort.
6208 */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]6209 if (msg->msg_state < HTTP_MSG_ENDING && res->flags & CF_SHUTR) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6210 if ((s->req.flags & (CF_SHUTR|CF_SHUTW)) == (CF_SHUTR|CF_SHUTW))
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6211 goto aborted_xfer;
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6212 /* If we have some pending data, we continue the processing */
Willy Tarreau5ba65522018-06-15 15:14:53 +0200[diff] [blame]6213 if (!ci_data(res)) {
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6214 if (!(s->flags & SF_ERR_MASK))
6215 s->flags |= SF_ERR_SRVCL;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6216 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6217 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6218 HA_ATOMIC_ADD(&objt_server(s->target)->counters.srv_aborts, 1);
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6219 goto return_bad_res_stats_ok;
6220 }
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6221 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6222
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6223 /* we need to obey the req analyser, so if it leaves, we must too */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6224 if (!s->req.analysers)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]6225 goto return_bad_res;
6226
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6227 /* When TE: chunked is used, we need to get there again to parse
6228 * remaining chunks even if the server has closed, so we don't want to
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6229 * set CF_DONTCLOSE. Similarly, if keep-alive is set on the client side
6230 * or if there are filters registered on the stream, we don't want to
6231 * forward a close
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6232 */
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6233 if ((msg->flags & HTTP_MSGF_TE_CHNK) ||
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]6234 HAS_DATA_FILTERS(s, res) ||
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6235 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6236 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6237 channel_dont_close(res);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6238
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6239 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6240 * what we did. So we always set the CF_EXPECT_MORE flag so that the
Willy Tarreau07293032011-05-30 18:29:28 +0200[diff] [blame]6241 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]6242 * modes are already handled by the stream sock layer. We must not do
6243 * this in content-length mode because it could present the MSG_MORE
6244 * flag with the last block of forwarded data, which would cause an
6245 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6246 */
Christopher Faulet92d36382015-11-05 13:35:03 +0100[diff] [blame]6247 if ((msg->flags & HTTP_MSGF_TE_CHNK) || (msg->flags & HTTP_MSGF_COMPRESSING))
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6248 res->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6249
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6250 /* the stream handler will take care of timeouts and errors */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6251 return 0;
6252
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6253 return_bad_res: /* let's centralize all bad responses */
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6254 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6255 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6256 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6257
6258 return_bad_res_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6259 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6260 txn->rsp.msg_state = HTTP_MSG_ERROR;
Willy Tarreau148d0992010-01-10 10:21:21 +0100[diff] [blame]6261 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6262 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6263 res->analysers &= AN_RES_FLT_END;
6264 s->req.analysers &= AN_REQ_FLT_END; /* we're in data phase, we want to abort both directions */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6265 if (objt_server(s->target))
6266 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6267
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6268 if (!(s->flags & SF_ERR_MASK))
6269 s->flags |= SF_ERR_PRXCOND;
6270 if (!(s->flags & SF_FINST_MASK))
6271 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6272 return 0;
6273
6274 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6275 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6276 txn->rsp.msg_state = HTTP_MSG_ERROR;
6277 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6278 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6279 res->analysers &= AN_RES_FLT_END;
6280 s->req.analysers &= AN_REQ_FLT_END; /* we're in data phase, we want to abort both directions */
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6281
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6282 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
6283 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6284 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6285 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6286
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6287 if (!(s->flags & SF_ERR_MASK))
6288 s->flags |= SF_ERR_CLICL;
6289 if (!(s->flags & SF_FINST_MASK))
6290 s->flags |= SF_FINST_D;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6291 return 0;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6292}
6293
6294
6295static inline int
6296http_msg_forward_body(struct stream *s, struct http_msg *msg)
6297{
6298 struct channel *chn = msg->chn;
6299 int ret;
6300
6301 /* Here we have the guarantee to be in HTTP_MSG_DATA or HTTP_MSG_ENDING state */
6302
6303 if (msg->msg_state == HTTP_MSG_ENDING)
6304 goto ending;
6305
6306 /* Neither content-length, nor transfer-encoding was found, so we must
6307 * read the body until the server connection is closed. In that case, we
6308 * eat data as they come. Of course, this happens for response only. */
6309 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6310 unsigned long long len = ci_data(chn) - msg->next;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6311 msg->chunk_len += len;
6312 msg->body_len += len;
6313 }
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6314 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6315 /* default_ret */ MIN(msg->chunk_len, ci_data(chn) - msg->next),
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6316 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6317 msg->next += ret;
6318 msg->chunk_len -= ret;
6319 if (msg->chunk_len) {
6320 /* input empty or output full */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6321 if (ci_data(chn) > msg->next)
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6322 chn->flags |= CF_WAKE_WRITE;
6323 goto missing_data_or_waiting;
6324 }
6325
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]6326 /* This check can only be true for a response. HTTP_MSGF_XFER_LEN is
6327 * always set for a request. */
6328 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6329 /* The server still sending data that should be filtered */
6330 if (!(chn->flags & CF_SHUTR) && HAS_DATA_FILTERS(s, chn))
6331 goto missing_data_or_waiting;
Christopher Fauletfd04fcf2018-02-02 15:54:15 +0100[diff] [blame]6332 msg->msg_state = HTTP_MSG_TUNNEL;
6333 goto ending;
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]6334 }
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]6335
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6336 msg->msg_state = HTTP_MSG_ENDING;
6337
6338 ending:
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6339 /* we may have some pending data starting at res->buf.p such as a last
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6340 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6341 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6342 /* default_ret */ msg->next,
6343 /* on_error */ goto error);
Willy Tarreaubcbd3932018-06-06 07:13:22 +0200[diff] [blame]6344 c_adv(chn, ret);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6345 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6346 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6347 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6348 if (msg->next)
6349 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6350
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6351 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
6352 /* default_ret */ 1,
6353 /* on_error */ goto error,
6354 /* on_wait */ goto waiting);
Christopher Fauletfd04fcf2018-02-02 15:54:15 +0100[diff] [blame]6355 if (msg->msg_state == HTTP_MSG_ENDING)
6356 msg->msg_state = HTTP_MSG_DONE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6357 return 1;
6358
6359 missing_data_or_waiting:
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6360 /* we may have some pending data starting at chn->buf.p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6361 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6362 /* default_ret */ msg->next,
6363 /* on_error */ goto error);
Willy Tarreaubcbd3932018-06-06 07:13:22 +0200[diff] [blame]6364 c_adv(chn, ret);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6365 msg->next -= ret;
6366 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6367 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6368 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6369 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6370 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6371 return 0;
6372 error:
6373 return -1;
6374}
6375
6376static inline int
6377http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg)
6378{
6379 struct channel *chn = msg->chn;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6380 unsigned int chunk;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6381 int ret;
6382
6383 /* Here we have the guarantee to be in one of the following state:
6384 * HTTP_MSG_DATA, HTTP_MSG_CHUNK_SIZE, HTTP_MSG_CHUNK_CRLF,
6385 * HTTP_MSG_TRAILERS or HTTP_MSG_ENDING. */
6386
6387 switch_states:
6388 switch (msg->msg_state) {
6389 case HTTP_MSG_DATA:
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6390 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6391 /* default_ret */ MIN(msg->chunk_len, ci_data(chn) - msg->next),
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6392 /* on_error */ goto error);
6393 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6394 msg->chunk_len -= ret;
6395 if (msg->chunk_len) {
6396 /* input empty or output full */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6397 if (ci_data(chn) > msg->next)
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6398 chn->flags |= CF_WAKE_WRITE;
6399 goto missing_data_or_waiting;
6400 }
6401
6402 /* nothing left to forward for this chunk*/
6403 msg->msg_state = HTTP_MSG_CHUNK_CRLF;
6404 /* fall through for HTTP_MSG_CHUNK_CRLF */
6405
6406 case HTTP_MSG_CHUNK_CRLF:
6407 /* we want the CRLF after the data */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6408 ret = h1_skip_chunk_crlf(&chn->buf, co_data(chn) + msg->next, c_data(chn));
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6409 if (ret == 0)
6410 goto missing_data_or_waiting;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6411 if (ret < 0) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6412 msg->err_pos = ci_data(chn) + ret;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6413 if (msg->err_pos < 0)
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6414 msg->err_pos += chn->buf.size;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6415 goto chunk_parsing_error;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6416 }
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6417 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6418 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
6419 /* fall through for HTTP_MSG_CHUNK_SIZE */
6420
6421 case HTTP_MSG_CHUNK_SIZE:
6422 /* read the chunk size and assign it to ->chunk_len,
6423 * then set ->next to point to the body and switch to
6424 * DATA or TRAILERS state.
6425 */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6426 ret = h1_parse_chunk_size(&chn->buf, co_data(chn) + msg->next, c_data(chn), &chunk);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6427 if (ret == 0)
6428 goto missing_data_or_waiting;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6429 if (ret < 0) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6430 msg->err_pos = ci_data(chn) + ret;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6431 if (msg->err_pos < 0)
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6432 msg->err_pos += chn->buf.size;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6433 goto chunk_parsing_error;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6434 }
6435
6436 msg->sol = ret;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6437 msg->next += ret;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6438 msg->chunk_len = chunk;
6439 msg->body_len += chunk;
6440
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6441 if (msg->chunk_len) {
6442 msg->msg_state = HTTP_MSG_DATA;
6443 goto switch_states;
6444 }
6445 msg->msg_state = HTTP_MSG_TRAILERS;
6446 /* fall through for HTTP_MSG_TRAILERS */
6447
6448 case HTTP_MSG_TRAILERS:
6449 ret = http_forward_trailers(msg);
6450 if (ret < 0)
6451 goto chunk_parsing_error;
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6452 FLT_STRM_DATA_CB(s, chn, flt_http_chunk_trailers(s, msg),
6453 /* default_ret */ 1,
6454 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6455 msg->next += msg->sol;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6456 if (!ret)
6457 goto missing_data_or_waiting;
6458 break;
6459
6460 case HTTP_MSG_ENDING:
6461 goto ending;
6462
6463 default:
6464 /* This should no happen in this function */
6465 goto error;
6466 }
6467
6468 msg->msg_state = HTTP_MSG_ENDING;
6469 ending:
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6470 /* we may have some pending data starting at res->buf.p such as a last
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6471 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6472 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6473 /* default_ret */ msg->next,
6474 /* on_error */ goto error);
Willy Tarreaubcbd3932018-06-06 07:13:22 +0200[diff] [blame]6475 c_adv(chn, ret);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6476 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6477 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6478 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6479 if (msg->next)
6480 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6481
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6482 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6483 /* default_ret */ 1,
6484 /* on_error */ goto error,
6485 /* on_wait */ goto waiting);
6486 msg->msg_state = HTTP_MSG_DONE;
6487 return 1;
6488
6489 missing_data_or_waiting:
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6490 /* we may have some pending data starting at chn->buf.p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6491 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6492 /* default_ret */ msg->next,
6493 /* on_error */ goto error);
Willy Tarreaubcbd3932018-06-06 07:13:22 +0200[diff] [blame]6494 c_adv(chn, ret);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6495 msg->next -= ret;
6496 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6497 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6498 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6499 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6500 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6501 return 0;
6502
6503 chunk_parsing_error:
6504 if (msg->err_pos >= 0) {
6505 if (chn->flags & CF_ISRESP)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6506 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg,
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6507 msg->msg_state, strm_fe(s));
6508 else
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6509 http_capture_bad_message(strm_fe(s), &strm_fe(s)->invalid_req, s,
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6510 msg, msg->msg_state, s->be);
6511 }
6512 error:
6513 return -1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6514}
6515
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6516
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6517/* Iterate the same filter through all request headers.
6518 * Returns 1 if this filter can be stopped upon return, otherwise 0.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6519 * Since it can manage the switch to another backend, it updates the per-proxy
6520 * DENY stats.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6521 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6522int apply_filter_to_req_headers(struct stream *s, struct channel *req, struct hdr_exp *exp)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6523{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6524 char *cur_ptr, *cur_end, *cur_next;
6525 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6526 struct http_txn *txn = s->txn;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6527 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6528 int delta;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100[diff] [blame]6529
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6530 last_hdr = 0;
6531
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6532 cur_next = ci_head(req) + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6533 old_idx = 0;
6534
6535 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6536 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6537 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6538 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6539 (exp->action == ACT_ALLOW ||
6540 exp->action == ACT_DENY ||
6541 exp->action == ACT_TARPIT))
6542 return 0;
6543
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6544 cur_idx = txn->hdr_idx.v[old_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6545 if (!cur_idx)
6546 break;
6547
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6548 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6549 cur_ptr = cur_next;
6550 cur_end = cur_ptr + cur_hdr->len;
6551 cur_next = cur_end + cur_hdr->cr + 1;
6552
6553 /* Now we have one header between cur_ptr and cur_end,
6554 * and the next header starts at cur_next.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6555 */
6556
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]6557 if (regex_exec_match2(exp->preg, cur_ptr, cur_end-cur_ptr, MAX_MATCH, pmatch, 0)) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6558 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6559 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6560 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6561 last_hdr = 1;
6562 break;
6563
6564 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6565 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6566 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6567 break;
6568
6569 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6570 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6571 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6572 break;
6573
6574 case ACT_REPLACE:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]6575 trash.data = exp_replace(trash.area,
6576 trash.size, cur_ptr,
6577 exp->replace, pmatch);
6578 if (trash.data < 0)
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6579 return -1;
6580
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]6581 delta = b_rep_blk(&req->buf, cur_ptr, cur_end,
6582 trash.area, trash.data);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6583 /* FIXME: if the user adds a newline in the replacement, the
6584 * index will not be recalculated for now, and the new line
6585 * will not be counted as a new header.
6586 */
6587
6588 cur_end += delta;
6589 cur_next += delta;
6590 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6591 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6592 break;
6593
6594 case ACT_REMOVE:
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6595 delta = b_rep_blk(&req->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6596 cur_next += delta;
6597
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6598 http_msg_move_end(&txn->req, delta);
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6599 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
6600 txn->hdr_idx.used--;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6601 cur_hdr->len = 0;
6602 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]6603 cur_idx = old_idx;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6604 break;
6605
6606 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6607 }
6608
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6609 /* keep the link from this header to next one in case of later
6610 * removal of next header.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6611 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6612 old_idx = cur_idx;
6613 }
6614 return 0;
6615}
6616
6617
6618/* Apply the filter to the request line.
6619 * Returns 0 if nothing has been done, 1 if the filter has been applied,
6620 * or -1 if a replacement resulted in an invalid request line.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6621 * Since it can manage the switch to another backend, it updates the per-proxy
6622 * DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6623 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6624int apply_filter_to_req_line(struct stream *s, struct channel *req, struct hdr_exp *exp)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6625{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6626 char *cur_ptr, *cur_end;
6627 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6628 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6629 int delta;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6630
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6631 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6632 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6633 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6634 (exp->action == ACT_ALLOW ||
6635 exp->action == ACT_DENY ||
6636 exp->action == ACT_TARPIT))
6637 return 0;
6638 else if (exp->action == ACT_REMOVE)
6639 return 0;
6640
6641 done = 0;
6642
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6643 cur_ptr = ci_head(req);
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6644 cur_end = cur_ptr + txn->req.sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6645
6646 /* Now we have the request line between cur_ptr and cur_end */
6647
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]6648 if (regex_exec_match2(exp->preg, cur_ptr, cur_end-cur_ptr, MAX_MATCH, pmatch, 0)) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6649 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6650 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6651 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6652 done = 1;
6653 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6654
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6655 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6656 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6657 done = 1;
6658 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6659
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6660 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6661 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6662 done = 1;
6663 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6664
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6665 case ACT_REPLACE:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]6666 trash.data = exp_replace(trash.area, trash.size,
6667 cur_ptr, exp->replace, pmatch);
6668 if (trash.data < 0)
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6669 return -1;
6670
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]6671 delta = b_rep_blk(&req->buf, cur_ptr, cur_end,
6672 trash.area, trash.data);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6673 /* FIXME: if the user adds a newline in the replacement, the
6674 * index will not be recalculated for now, and the new line
6675 * will not be counted as a new header.
6676 */
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6677
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6678 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6679 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]6680 cur_end = (char *)http_parse_reqline(&txn->req,
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6681 HTTP_MSG_RQMETH,
6682 cur_ptr, cur_end + 1,
6683 NULL, NULL);
6684 if (unlikely(!cur_end))
6685 return -1;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6686
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6687 /* we have a full request and we know that we have either a CR
6688 * or an LF at <ptr>.
6689 */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6690 txn->meth = find_http_meth(cur_ptr, txn->req.sl.rq.m_l);
6691 hdr_idx_set_start(&txn->hdr_idx, txn->req.sl.rq.l, *cur_end == '\r');
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6692 /* there is no point trying this regex on headers */
6693 return 1;
6694 }
6695 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6696 return done;
6697}
Willy Tarreau97de6242006-12-27 17:18:38 +0100[diff] [blame]6698
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6699
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6700
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6701/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6702 * Apply all the req filters of proxy <px> to all headers in buffer <req> of stream <s>.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6703 * Returns 0 if everything is alright, or -1 in case a replacement lead to an
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6704 * unparsable request. Since it can manage the switch to another backend, it
6705 * updates the per-proxy DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6706 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6707int apply_filters_to_request(struct stream *s, struct channel *req, struct proxy *px)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6708{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6709 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6710 struct http_txn *txn = s->txn;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6711 struct hdr_exp *exp;
6712
6713 for (exp = px->req_exp; exp; exp = exp->next) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6714 int ret;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6715
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6716 /*
6717 * The interleaving of transformations and verdicts
6718 * makes it difficult to decide to continue or stop
6719 * the evaluation.
6720 */
6721
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6722 if (txn->flags & (TX_CLDENY|TX_CLTARPIT))
6723 break;
6724
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6725 if ((txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6726 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6727 exp->action == ACT_TARPIT || exp->action == ACT_PASS))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6728 continue;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6729
6730 /* if this filter had a condition, evaluate it now and skip to
6731 * next filter if the condition does not match.
6732 */
6733 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6734 ret = acl_exec_cond(exp->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6735 ret = acl_pass(ret);
6736 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
6737 ret = !ret;
6738
6739 if (!ret)
6740 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6741 }
6742
6743 /* Apply the filter to the request line. */
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6744 ret = apply_filter_to_req_line(s, req, exp);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6745 if (unlikely(ret < 0))
6746 return -1;
6747
6748 if (likely(ret == 0)) {
6749 /* The filter did not match the request, it can be
6750 * iterated through all headers.
6751 */
Willy Tarreau34d4c3c2015-01-30 20:58:58 +0100[diff] [blame]6752 if (unlikely(apply_filter_to_req_headers(s, req, exp) < 0))
6753 return -1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6754 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6755 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6756 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6757}
6758
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6759
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6760/* Find the end of a cookie value contained between <s> and <e>. It works the
6761 * same way as with headers above except that the semi-colon also ends a token.
6762 * See RFC2965 for more information. Note that it requires a valid header to
6763 * return a valid result.
6764 */
6765char *find_cookie_value_end(char *s, const char *e)
6766{
6767 int quoted, qdpair;
6768
6769 quoted = qdpair = 0;
6770 for (; s < e; s++) {
6771 if (qdpair) qdpair = 0;
6772 else if (quoted) {
6773 if (*s == '\\') qdpair = 1;
6774 else if (*s == '"') quoted = 0;
6775 }
6776 else if (*s == '"') quoted = 1;
6777 else if (*s == ',' || *s == ';') return s;
6778 }
6779 return s;
6780}
6781
6782/* Delete a value in a header between delimiters <from> and <next> in buffer
6783 * <buf>. The number of characters displaced is returned, and the pointer to
6784 * the first delimiter is updated if required. The function tries as much as
6785 * possible to respect the following principles :
6786 * - replace <from> delimiter by the <next> one unless <from> points to a
6787 * colon, in which case <next> is simply removed
6788 * - set exactly one space character after the new first delimiter, unless
6789 * there are not enough characters in the block being moved to do so.
6790 * - remove unneeded spaces before the previous delimiter and after the new
6791 * one.
6792 *
6793 * It is the caller's responsibility to ensure that :
6794 * - <from> points to a valid delimiter or the colon ;
6795 * - <next> points to a valid delimiter or the final CR/LF ;
6796 * - there are non-space chars before <from> ;
6797 * - there is a CR/LF at or after <next>.
6798 */
Willy Tarreauaf819352012-08-27 22:08:00 +0200[diff] [blame]6799int del_hdr_value(struct buffer *buf, char **from, char *next)
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6800{
6801 char *prev = *from;
6802
6803 if (*prev == ':') {
6804 /* We're removing the first value, preserve the colon and add a
6805 * space if possible.
6806 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6807 if (!HTTP_IS_CRLF(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6808 next++;
6809 prev++;
6810 if (prev < next)
6811 *prev++ = ' ';
6812
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6813 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6814 next++;
6815 } else {
6816 /* Remove useless spaces before the old delimiter. */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6817 while (HTTP_IS_SPHT(*(prev-1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6818 prev--;
6819 *from = prev;
6820
6821 /* copy the delimiter and if possible a space if we're
6822 * not at the end of the line.
6823 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6824 if (!HTTP_IS_CRLF(*next)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6825 *prev++ = *next++;
6826 if (prev + 1 < next)
6827 *prev++ = ' ';
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6828 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6829 next++;
6830 }
6831 }
Willy Tarreaue3128022018-07-12 15:55:34 +0200[diff] [blame]6832 return b_rep_blk(buf, prev, next, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6833}
6834
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6835/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]6836 * Manage client-side cookie. It can impact performance by about 2% so it is
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6837 * desirable to call it only when needed. This code is quite complex because
6838 * of the multiple very crappy and ambiguous syntaxes we have to support. it
6839 * highly recommended not to touch this part without a good reason !
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6840 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6841void manage_client_side_cookies(struct stream *s, struct channel *req)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6842{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6843 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6844 struct session *sess = s->sess;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6845 int preserve_hdr;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6846 int cur_idx, old_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6847 char *hdr_beg, *hdr_end, *hdr_next, *del_from;
6848 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6849
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6850 /* Iterate through the headers, we start with the start line. */
Willy Tarreau83969f42007-01-22 08:55:47 +0100[diff] [blame]6851 old_idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6852 hdr_next = ci_head(req) + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6853
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6854 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6855 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6856 int val;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6857
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6858 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6859 hdr_beg = hdr_next;
6860 hdr_end = hdr_beg + cur_hdr->len;
6861 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6862
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6863 /* We have one full header between hdr_beg and hdr_end, and the
6864 * next header starts at hdr_next. We're only interested in
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6865 * "Cookie:" headers.
6866 */
6867
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6868 val = http_header_match2(hdr_beg, hdr_end, "Cookie", 6);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6869 if (!val) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6870 old_idx = cur_idx;
6871 continue;
6872 }
6873
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6874 del_from = NULL; /* nothing to be deleted */
6875 preserve_hdr = 0; /* assume we may kill the whole header */
6876
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6877 /* Now look for cookies. Conforming to RFC2109, we have to support
6878 * attributes whose name begin with a '$', and associate them with
6879 * the right cookie, if we want to delete this cookie.
6880 * So there are 3 cases for each cookie read :
6881 * 1) it's a special attribute, beginning with a '$' : ignore it.
6882 * 2) it's a server id cookie that we *MAY* want to delete : save
6883 * some pointers on it (last semi-colon, beginning of cookie...)
6884 * 3) it's an application cookie : we *MAY* have to delete a previous
6885 * "special" cookie.
6886 * At the end of loop, if a "special" cookie remains, we may have to
6887 * remove it. If no application cookie persists in the header, we
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6888 * *MUST* delete it.
6889 *
6890 * Note: RFC2965 is unclear about the processing of spaces around
6891 * the equal sign in the ATTR=VALUE form. A careful inspection of
6892 * the RFC explicitly allows spaces before it, and not within the
6893 * tokens (attrs or values). An inspection of RFC2109 allows that
6894 * too but section 10.1.3 lets one think that spaces may be allowed
6895 * after the equal sign too, resulting in some (rare) buggy
6896 * implementations trying to do that. So let's do what servers do.
6897 * Latest ietf draft forbids spaces all around. Also, earlier RFCs
6898 * allowed quoted strings in values, with any possible character
6899 * after a backslash, including control chars and delimitors, which
6900 * causes parsing to become ambiguous. Browsers also allow spaces
6901 * within values even without quotes.
6902 *
6903 * We have to keep multiple pointers in order to support cookie
6904 * removal at the beginning, middle or end of header without
6905 * corrupting the header. All of these headers are valid :
6906 *
6907 * Cookie:NAME1=VALUE1;NAME2=VALUE2;NAME3=VALUE3\r\n
6908 * Cookie:NAME1=VALUE1;NAME2_ONLY ;NAME3=VALUE3\r\n
6909 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
6910 * | | | | | | | | |
6911 * | | | | | | | | hdr_end <--+
6912 * | | | | | | | +--> next
6913 * | | | | | | +----> val_end
6914 * | | | | | +-----------> val_beg
6915 * | | | | +--------------> equal
6916 * | | | +----------------> att_end
6917 * | | +---------------------> att_beg
6918 * | +--------------------------> prev
6919 * +--------------------------------> hdr_beg
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6920 */
6921
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6922 for (prev = hdr_beg + 6; prev < hdr_end; prev = next) {
6923 /* Iterate through all cookies on this line */
6924
6925 /* find att_beg */
6926 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6927 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6928 att_beg++;
6929
6930 /* find att_end : this is the first character after the last non
6931 * space before the equal. It may be equal to hdr_end.
6932 */
6933 equal = att_end = att_beg;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6934
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6935 while (equal < hdr_end) {
6936 if (*equal == '=' || *equal == ',' || *equal == ';')
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6937 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6938 if (HTTP_IS_SPHT(*equal++))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6939 continue;
6940 att_end = equal;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6941 }
6942
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6943 /* here, <equal> points to '=', a delimitor or the end. <att_end>
6944 * is between <att_beg> and <equal>, both may be identical.
6945 */
6946
6947 /* look for end of cookie if there is an equal sign */
6948 if (equal < hdr_end && *equal == '=') {
6949 /* look for the beginning of the value */
6950 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6951 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6952 val_beg++;
6953
6954 /* find the end of the value, respecting quotes */
6955 next = find_cookie_value_end(val_beg, hdr_end);
6956
6957 /* make val_end point to the first white space or delimitor after the value */
6958 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6959 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6960 val_end--;
6961 } else {
6962 val_beg = val_end = next = equal;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6963 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6964
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6965 /* We have nothing to do with attributes beginning with '$'. However,
6966 * they will automatically be removed if a header before them is removed,
6967 * since they're supposed to be linked together.
6968 */
6969 if (*att_beg == '$')
6970 continue;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6971
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6972 /* Ignore cookies with no equal sign */
6973 if (equal == next) {
6974 /* This is not our cookie, so we must preserve it. But if we already
6975 * scheduled another cookie for removal, we cannot remove the
6976 * complete header, but we can remove the previous block itself.
6977 */
6978 preserve_hdr = 1;
6979 if (del_from != NULL) {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6980 int delta = del_hdr_value(&req->buf, &del_from, prev);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6981 val_end += delta;
6982 next += delta;
6983 hdr_end += delta;
6984 hdr_next += delta;
6985 cur_hdr->len += delta;
6986 http_msg_move_end(&txn->req, delta);
6987 prev = del_from;
6988 del_from = NULL;
6989 }
6990 continue;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6991 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6992
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6993 /* if there are spaces around the equal sign, we need to
6994 * strip them otherwise we'll get trouble for cookie captures,
6995 * or even for rewrites. Since this happens extremely rarely,
6996 * it does not hurt performance.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6997 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6998 if (unlikely(att_end != equal || val_beg > equal + 1)) {
6999 int stripped_before = 0;
7000 int stripped_after = 0;
7001
7002 if (att_end != equal) {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7003 stripped_before = b_rep_blk(&req->buf, att_end, equal, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7004 equal += stripped_before;
7005 val_beg += stripped_before;
7006 }
7007
7008 if (val_beg > equal + 1) {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7009 stripped_after = b_rep_blk(&req->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7010 val_beg += stripped_after;
7011 stripped_before += stripped_after;
7012 }
7013
7014 val_end += stripped_before;
7015 next += stripped_before;
7016 hdr_end += stripped_before;
7017 hdr_next += stripped_before;
7018 cur_hdr->len += stripped_before;
7019 http_msg_move_end(&txn->req, stripped_before);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7020 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7021 /* now everything is as on the diagram above */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7022
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7023 /* First, let's see if we want to capture this cookie. We check
7024 * that we don't already have a client side cookie, because we
7025 * can only capture one. Also as an optimisation, we ignore
7026 * cookies shorter than the declared name.
7027 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7028 if (sess->fe->capture_name != NULL && txn->cli_cookie == NULL &&
7029 (val_end - att_beg >= sess->fe->capture_namelen) &&
7030 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7031 int log_len = val_end - att_beg;
7032
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]7033 if ((txn->cli_cookie = pool_alloc(pool_head_capture)) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]7034 ha_alert("HTTP logging : out of memory.\n");
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7035 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7036 if (log_len > sess->fe->capture_len)
7037 log_len = sess->fe->capture_len;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7038 memcpy(txn->cli_cookie, att_beg, log_len);
7039 txn->cli_cookie[log_len] = 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7040 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7041 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7042
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7043 /* Persistence cookies in passive, rewrite or insert mode have the
7044 * following form :
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7045 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7046 * Cookie: NAME=SRV[|<lastseen>[|<firstseen>]]
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7047 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7048 * For cookies in prefix mode, the form is :
7049 *
7050 * Cookie: NAME=SRV~VALUE
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7051 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7052 if ((att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
7053 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
7054 struct server *srv = s->be->srv;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7055 char *delim;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7056
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7057 /* if we're in cookie prefix mode, we'll search the delimitor so that we
7058 * have the server ID between val_beg and delim, and the original cookie between
7059 * delim+1 and val_end. Otherwise, delim==val_end :
7060 *
7061 * Cookie: NAME=SRV; # in all but prefix modes
7062 * Cookie: NAME=SRV~OPAQUE ; # in prefix mode
7063 * | || || | |+-> next
7064 * | || || | +--> val_end
7065 * | || || +---------> delim
7066 * | || |+------------> val_beg
7067 * | || +-------------> att_end = equal
7068 * | |+-----------------> att_beg
7069 * | +------------------> prev
7070 * +-------------------------> hdr_beg
7071 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7072
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7073 if (s->be->ck_opts & PR_CK_PFX) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7074 for (delim = val_beg; delim < val_end; delim++)
7075 if (*delim == COOKIE_DELIM)
7076 break;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7077 } else {
7078 char *vbar1;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7079 delim = val_end;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7080 /* Now check if the cookie contains a date field, which would
7081 * appear after a vertical bar ('|') just after the server name
7082 * and before the delimiter.
7083 */
7084 vbar1 = memchr(val_beg, COOKIE_DELIM_DATE, val_end - val_beg);
7085 if (vbar1) {
7086 /* OK, so left of the bar is the server's cookie and
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7087 * right is the last seen date. It is a base64 encoded
7088 * 30-bit value representing the UNIX date since the
7089 * epoch in 4-second quantities.
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7090 */
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7091 int val;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7092 delim = vbar1++;
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7093 if (val_end - vbar1 >= 5) {
7094 val = b64tos30(vbar1);
7095 if (val > 0)
7096 txn->cookie_last_date = val << 2;
7097 }
7098 /* look for a second vertical bar */
7099 vbar1 = memchr(vbar1, COOKIE_DELIM_DATE, val_end - vbar1);
7100 if (vbar1 && (val_end - vbar1 > 5)) {
7101 val = b64tos30(vbar1 + 1);
7102 if (val > 0)
7103 txn->cookie_first_date = val << 2;
7104 }
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7105 }
7106 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7107
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7108 /* if the cookie has an expiration date and the proxy wants to check
7109 * it, then we do that now. We first check if the cookie is too old,
7110 * then only if it has expired. We detect strict overflow because the
7111 * time resolution here is not great (4 seconds). Cookies with dates
7112 * in the future are ignored if their offset is beyond one day. This
7113 * allows an admin to fix timezone issues without expiring everyone
7114 * and at the same time avoids keeping unwanted side effects for too
7115 * long.
7116 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7117 if (txn->cookie_first_date && s->be->cookie_maxlife &&
7118 (((signed)(date.tv_sec - txn->cookie_first_date) > (signed)s->be->cookie_maxlife) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]7119 ((signed)(txn->cookie_first_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7120 txn->flags &= ~TX_CK_MASK;
7121 txn->flags |= TX_CK_OLD;
7122 delim = val_beg; // let's pretend we have not found the cookie
7123 txn->cookie_first_date = 0;
7124 txn->cookie_last_date = 0;
7125 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7126 else if (txn->cookie_last_date && s->be->cookie_maxidle &&
7127 (((signed)(date.tv_sec - txn->cookie_last_date) > (signed)s->be->cookie_maxidle) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]7128 ((signed)(txn->cookie_last_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7129 txn->flags &= ~TX_CK_MASK;
7130 txn->flags |= TX_CK_EXPIRED;
7131 delim = val_beg; // let's pretend we have not found the cookie
7132 txn->cookie_first_date = 0;
7133 txn->cookie_last_date = 0;
7134 }
7135
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7136 /* Here, we'll look for the first running server which supports the cookie.
7137 * This allows to share a same cookie between several servers, for example
7138 * to dedicate backup servers to specific servers only.
7139 * However, to prevent clients from sticking to cookie-less backup server
7140 * when they have incidentely learned an empty cookie, we simply ignore
7141 * empty cookies and mark them as invalid.
7142 * The same behaviour is applied when persistence must be ignored.
7143 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7144 if ((delim == val_beg) || (s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7145 srv = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7146
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7147 while (srv) {
7148 if (srv->cookie && (srv->cklen == delim - val_beg) &&
7149 !memcmp(val_beg, srv->cookie, delim - val_beg)) {
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]7150 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7151 (s->be->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7152 (s->flags & SF_FORCE_PRST)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7153 /* we found the server and we can use it */
7154 txn->flags &= ~TX_CK_MASK;
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]7155 txn->flags |= (srv->cur_state != SRV_ST_STOPPED) ? TX_CK_VALID : TX_CK_DOWN;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7156 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7157 s->target = &srv->obj_type;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7158 break;
7159 } else {
7160 /* we found a server, but it's down,
7161 * mark it as such and go on in case
7162 * another one is available.
7163 */
7164 txn->flags &= ~TX_CK_MASK;
7165 txn->flags |= TX_CK_DOWN;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7166 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7167 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7168 srv = srv->next;
7169 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7170
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7171 if (!srv && !(txn->flags & (TX_CK_DOWN|TX_CK_EXPIRED|TX_CK_OLD))) {
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7172 /* no server matched this cookie or we deliberately skipped it */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7173 txn->flags &= ~TX_CK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7174 if ((s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7175 txn->flags |= TX_CK_UNUSED;
7176 else
7177 txn->flags |= TX_CK_INVALID;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7178 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7179
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7180 /* depending on the cookie mode, we may have to either :
7181 * - delete the complete cookie if we're in insert+indirect mode, so that
7182 * the server never sees it ;
7183 * - remove the server id from the cookie value, and tag the cookie as an
7184 * application cookie so that it does not get accidentely removed later,
7185 * if we're in cookie prefix mode
7186 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7187 if ((s->be->ck_opts & PR_CK_PFX) && (delim != val_end)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7188 int delta; /* negative */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7189
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7190 delta = b_rep_blk(&req->buf, val_beg, delim + 1, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7191 val_end += delta;
7192 next += delta;
7193 hdr_end += delta;
7194 hdr_next += delta;
7195 cur_hdr->len += delta;
7196 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7197
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7198 del_from = NULL;
7199 preserve_hdr = 1; /* we want to keep this cookie */
7200 }
7201 else if (del_from == NULL &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7202 (s->be->ck_opts & (PR_CK_INS | PR_CK_IND)) == (PR_CK_INS | PR_CK_IND)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7203 del_from = prev;
7204 }
7205 } else {
7206 /* This is not our cookie, so we must preserve it. But if we already
7207 * scheduled another cookie for removal, we cannot remove the
7208 * complete header, but we can remove the previous block itself.
7209 */
7210 preserve_hdr = 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7211
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7212 if (del_from != NULL) {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7213 int delta = del_hdr_value(&req->buf, &del_from, prev);
Willy Tarreaub8105542010-11-24 18:31:28 +0100[diff] [blame]7214 if (att_beg >= del_from)
7215 att_beg += delta;
7216 if (att_end >= del_from)
7217 att_end += delta;
7218 val_beg += delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7219 val_end += delta;
7220 next += delta;
7221 hdr_end += delta;
7222 hdr_next += delta;
7223 cur_hdr->len += delta;
7224 http_msg_move_end(&txn->req, delta);
7225 prev = del_from;
7226 del_from = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7227 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7228 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7229
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7230 /* continue with next cookie on this header line */
7231 att_beg = next;
7232 } /* for each cookie */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7233
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7234 /* There are no more cookies on this line.
7235 * We may still have one (or several) marked for deletion at the
7236 * end of the line. We must do this now in two ways :
7237 * - if some cookies must be preserved, we only delete from the
7238 * mark to the end of line ;
7239 * - if nothing needs to be preserved, simply delete the whole header
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7240 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7241 if (del_from) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7242 int delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7243 if (preserve_hdr) {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7244 delta = del_hdr_value(&req->buf, &del_from, hdr_end);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7245 hdr_end = del_from;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7246 cur_hdr->len += delta;
7247 } else {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7248 delta = b_rep_blk(&req->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7249
7250 /* FIXME: this should be a separate function */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7251 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7252 txn->hdr_idx.used--;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7253 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7254 cur_idx = old_idx;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7255 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7256 hdr_next += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7257 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7258 }
7259
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7260 /* check next header */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7261 old_idx = cur_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7262 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7263}
7264
7265
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7266/* Iterate the same filter through all response headers contained in <rtr>.
7267 * Returns 1 if this filter can be stopped upon return, otherwise 0.
7268 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7269int apply_filter_to_resp_headers(struct stream *s, struct channel *rtr, struct hdr_exp *exp)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7270{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7271 char *cur_ptr, *cur_end, *cur_next;
7272 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7273 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7274 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7275 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7276
7277 last_hdr = 0;
7278
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]7279 cur_next = ci_head(rtr) + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7280 old_idx = 0;
7281
7282 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7283 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7284 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7285 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7286 (exp->action == ACT_ALLOW ||
7287 exp->action == ACT_DENY))
7288 return 0;
7289
7290 cur_idx = txn->hdr_idx.v[old_idx].next;
7291 if (!cur_idx)
7292 break;
7293
7294 cur_hdr = &txn->hdr_idx.v[cur_idx];
7295 cur_ptr = cur_next;
7296 cur_end = cur_ptr + cur_hdr->len;
7297 cur_next = cur_end + cur_hdr->cr + 1;
7298
7299 /* Now we have one header between cur_ptr and cur_end,
7300 * and the next header starts at cur_next.
7301 */
7302
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7303 if (regex_exec_match2(exp->preg, cur_ptr, cur_end-cur_ptr, MAX_MATCH, pmatch, 0)) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7304 switch (exp->action) {
7305 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7306 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7307 last_hdr = 1;
7308 break;
7309
7310 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7311 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7312 last_hdr = 1;
7313 break;
7314
7315 case ACT_REPLACE:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]7316 trash.data = exp_replace(trash.area,
7317 trash.size, cur_ptr,
7318 exp->replace, pmatch);
7319 if (trash.data < 0)
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7320 return -1;
7321
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]7322 delta = b_rep_blk(&rtr->buf, cur_ptr, cur_end,
7323 trash.area, trash.data);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7324 /* FIXME: if the user adds a newline in the replacement, the
7325 * index will not be recalculated for now, and the new line
7326 * will not be counted as a new header.
7327 */
7328
7329 cur_end += delta;
7330 cur_next += delta;
7331 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7332 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7333 break;
7334
7335 case ACT_REMOVE:
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7336 delta = b_rep_blk(&rtr->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7337 cur_next += delta;
7338
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7339 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7340 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7341 txn->hdr_idx.used--;
7342 cur_hdr->len = 0;
7343 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7344 cur_idx = old_idx;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7345 break;
7346
7347 }
7348 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7349
7350 /* keep the link from this header to next one in case of later
7351 * removal of next header.
7352 */
7353 old_idx = cur_idx;
7354 }
7355 return 0;
7356}
7357
7358
7359/* Apply the filter to the status line in the response buffer <rtr>.
7360 * Returns 0 if nothing has been done, 1 if the filter has been applied,
7361 * or -1 if a replacement resulted in an invalid status line.
7362 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7363int apply_filter_to_sts_line(struct stream *s, struct channel *rtr, struct hdr_exp *exp)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7364{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7365 char *cur_ptr, *cur_end;
7366 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7367 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7368 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7369
7370
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7371 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7372 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7373 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7374 (exp->action == ACT_ALLOW ||
7375 exp->action == ACT_DENY))
7376 return 0;
7377 else if (exp->action == ACT_REMOVE)
7378 return 0;
7379
7380 done = 0;
7381
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]7382 cur_ptr = ci_head(rtr);
Willy Tarreau1ba0e5f2010-06-07 13:57:32 +0200[diff] [blame]7383 cur_end = cur_ptr + txn->rsp.sl.st.l;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7384
7385 /* Now we have the status line between cur_ptr and cur_end */
7386
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7387 if (regex_exec_match2(exp->preg, cur_ptr, cur_end-cur_ptr, MAX_MATCH, pmatch, 0)) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7388 switch (exp->action) {
7389 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7390 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7391 done = 1;
7392 break;
7393
7394 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7395 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7396 done = 1;
7397 break;
7398
7399 case ACT_REPLACE:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]7400 trash.data = exp_replace(trash.area, trash.size,
7401 cur_ptr, exp->replace, pmatch);
7402 if (trash.data < 0)
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7403 return -1;
7404
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]7405 delta = b_rep_blk(&rtr->buf, cur_ptr, cur_end,
7406 trash.area, trash.data);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7407 /* FIXME: if the user adds a newline in the replacement, the
7408 * index will not be recalculated for now, and the new line
7409 * will not be counted as a new header.
7410 */
7411
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7412 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7413 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7414 cur_end = (char *)http_parse_stsline(&txn->rsp,
Willy Tarreau02785762007-04-03 14:45:44 +0200[diff] [blame]7415 HTTP_MSG_RPVER,
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7416 cur_ptr, cur_end + 1,
7417 NULL, NULL);
7418 if (unlikely(!cur_end))
7419 return -1;
7420
7421 /* we have a full respnse and we know that we have either a CR
7422 * or an LF at <ptr>.
7423 */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]7424 txn->status = strl2ui(ci_head(rtr) + txn->rsp.sl.st.c, txn->rsp.sl.st.c_l);
Willy Tarreau1ba0e5f2010-06-07 13:57:32 +0200[diff] [blame]7425 hdr_idx_set_start(&txn->hdr_idx, txn->rsp.sl.st.l, *cur_end == '\r');
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7426 /* there is no point trying this regex on headers */
7427 return 1;
7428 }
7429 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7430 return done;
7431}
7432
7433
7434
7435/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7436 * Apply all the resp filters of proxy <px> to all headers in buffer <rtr> of stream <s>.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7437 * Returns 0 if everything is alright, or -1 in case a replacement lead to an
7438 * unparsable response.
7439 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7440int apply_filters_to_response(struct stream *s, struct channel *rtr, struct proxy *px)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7441{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7442 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7443 struct http_txn *txn = s->txn;
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7444 struct hdr_exp *exp;
7445
7446 for (exp = px->rsp_exp; exp; exp = exp->next) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7447 int ret;
7448
7449 /*
7450 * The interleaving of transformations and verdicts
7451 * makes it difficult to decide to continue or stop
7452 * the evaluation.
7453 */
7454
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7455 if (txn->flags & TX_SVDENY)
7456 break;
7457
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7458 if ((txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7459 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
7460 exp->action == ACT_PASS)) {
7461 exp = exp->next;
7462 continue;
7463 }
7464
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7465 /* if this filter had a condition, evaluate it now and skip to
7466 * next filter if the condition does not match.
7467 */
7468 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7469 ret = acl_exec_cond(exp->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7470 ret = acl_pass(ret);
7471 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
7472 ret = !ret;
7473 if (!ret)
7474 continue;
7475 }
7476
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7477 /* Apply the filter to the status line. */
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7478 ret = apply_filter_to_sts_line(s, rtr, exp);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7479 if (unlikely(ret < 0))
7480 return -1;
7481
7482 if (likely(ret == 0)) {
7483 /* The filter did not match the response, it can be
7484 * iterated through all headers.
7485 */
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7486 if (unlikely(apply_filter_to_resp_headers(s, rtr, exp) < 0))
7487 return -1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7488 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7489 }
7490 return 0;
7491}
7492
7493
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7494/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]7495 * Manage server-side cookies. It can impact performance by about 2% so it is
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7496 * desirable to call it only when needed. This function is also used when we
7497 * just need to know if there is a cookie (eg: for check-cache).
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7498 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7499void manage_server_side_cookies(struct stream *s, struct channel *res)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7500{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7501 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7502 struct session *sess = s->sess;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7503 struct server *srv;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7504 int is_cookie2;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7505 int cur_idx, old_idx, delta;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7506 char *hdr_beg, *hdr_end, *hdr_next;
7507 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7508
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7509 /* Iterate through the headers.
7510 * we start with the start line.
7511 */
7512 old_idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]7513 hdr_next = ci_head(res) + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7514
7515 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
7516 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7517 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7518
7519 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7520 hdr_beg = hdr_next;
7521 hdr_end = hdr_beg + cur_hdr->len;
7522 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7523
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7524 /* We have one full header between hdr_beg and hdr_end, and the
7525 * next header starts at hdr_next. We're only interested in
7526 * "Set-Cookie" and "Set-Cookie2" headers.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7527 */
7528
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7529 is_cookie2 = 0;
7530 prev = hdr_beg + 10;
7531 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie", 10);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7532 if (!val) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7533 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie2", 11);
7534 if (!val) {
7535 old_idx = cur_idx;
7536 continue;
7537 }
7538 is_cookie2 = 1;
7539 prev = hdr_beg + 11;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7540 }
7541
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7542 /* OK, right now we know we have a Set-Cookie* at hdr_beg, and
7543 * <prev> points to the colon.
7544 */
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7545 txn->flags |= TX_SCK_PRESENT;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7546
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7547 /* Maybe we only wanted to see if there was a Set-Cookie (eg:
7548 * check-cache is enabled) and we are not interested in checking
7549 * them. Warning, the cookie capture is declared in the frontend.
Willy Tarreaufd39dda2008-10-17 12:01:58 +0200[diff] [blame]7550 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]7551 if (s->be->cookie_name == NULL && sess->fe->capture_name == NULL)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7552 return;
7553
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7554 /* OK so now we know we have to process this response cookie.
7555 * The format of the Set-Cookie header is slightly different
7556 * from the format of the Cookie header in that it does not
7557 * support the comma as a cookie delimiter (thus the header
7558 * cannot be folded) because the Expires attribute described in
7559 * the original Netscape's spec may contain an unquoted date
7560 * with a comma inside. We have to live with this because
7561 * many browsers don't support Max-Age and some browsers don't
7562 * support quoted strings. However the Set-Cookie2 header is
7563 * clean.
7564 *
7565 * We have to keep multiple pointers in order to support cookie
7566 * removal at the beginning, middle or end of header without
7567 * corrupting the header (in case of set-cookie2). A special
7568 * pointer, <scav> points to the beginning of the set-cookie-av
7569 * fields after the first semi-colon. The <next> pointer points
7570 * either to the end of line (set-cookie) or next unquoted comma
7571 * (set-cookie2). All of these headers are valid :
7572 *
7573 * Set-Cookie: NAME1 = VALUE 1 ; Secure; Path="/"\r\n
7574 * Set-Cookie:NAME=VALUE; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7575 * Set-Cookie: NAME = VALUE ; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7576 * Set-Cookie2: NAME1 = VALUE 1 ; Max-Age=0, NAME2=VALUE2; Discard\r\n
7577 * | | | | | | | | | |
7578 * | | | | | | | | +-> next hdr_end <--+
7579 * | | | | | | | +------------> scav
7580 * | | | | | | +--------------> val_end
7581 * | | | | | +--------------------> val_beg
7582 * | | | | +----------------------> equal
7583 * | | | +------------------------> att_end
7584 * | | +----------------------------> att_beg
7585 * | +------------------------------> prev
7586 * +-----------------------------------------> hdr_beg
7587 */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7588
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7589 for (; prev < hdr_end; prev = next) {
7590 /* Iterate through all cookies on this line */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7591
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7592 /* find att_beg */
7593 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7594 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7595 att_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7596
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7597 /* find att_end : this is the first character after the last non
7598 * space before the equal. It may be equal to hdr_end.
7599 */
7600 equal = att_end = att_beg;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7601
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7602 while (equal < hdr_end) {
7603 if (*equal == '=' || *equal == ';' || (is_cookie2 && *equal == ','))
7604 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7605 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7606 continue;
7607 att_end = equal;
7608 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7609
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7610 /* here, <equal> points to '=', a delimitor or the end. <att_end>
7611 * is between <att_beg> and <equal>, both may be identical.
7612 */
7613
7614 /* look for end of cookie if there is an equal sign */
7615 if (equal < hdr_end && *equal == '=') {
7616 /* look for the beginning of the value */
7617 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7618 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7619 val_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7620
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7621 /* find the end of the value, respecting quotes */
7622 next = find_cookie_value_end(val_beg, hdr_end);
7623
7624 /* make val_end point to the first white space or delimitor after the value */
7625 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7626 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7627 val_end--;
7628 } else {
7629 /* <equal> points to next comma, semi-colon or EOL */
7630 val_beg = val_end = next = equal;
7631 }
7632
7633 if (next < hdr_end) {
7634 /* Set-Cookie2 supports multiple cookies, and <next> points to
7635 * a colon or semi-colon before the end. So skip all attr-value
7636 * pairs and look for the next comma. For Set-Cookie, since
7637 * commas are permitted in values, skip to the end.
7638 */
7639 if (is_cookie2)
7640 next = find_hdr_value_end(next, hdr_end);
7641 else
7642 next = hdr_end;
7643 }
7644
7645 /* Now everything is as on the diagram above */
7646
7647 /* Ignore cookies with no equal sign */
7648 if (equal == val_end)
7649 continue;
7650
7651 /* If there are spaces around the equal sign, we need to
7652 * strip them otherwise we'll get trouble for cookie captures,
7653 * or even for rewrites. Since this happens extremely rarely,
7654 * it does not hurt performance.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7655 */
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7656 if (unlikely(att_end != equal || val_beg > equal + 1)) {
7657 int stripped_before = 0;
7658 int stripped_after = 0;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7659
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7660 if (att_end != equal) {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7661 stripped_before = b_rep_blk(&res->buf, att_end, equal, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7662 equal += stripped_before;
7663 val_beg += stripped_before;
7664 }
7665
7666 if (val_beg > equal + 1) {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7667 stripped_after = b_rep_blk(&res->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7668 val_beg += stripped_after;
7669 stripped_before += stripped_after;
7670 }
7671
7672 val_end += stripped_before;
7673 next += stripped_before;
7674 hdr_end += stripped_before;
7675 hdr_next += stripped_before;
7676 cur_hdr->len += stripped_before;
Willy Tarreau1fc1f452011-04-07 22:35:37 +0200[diff] [blame]7677 http_msg_move_end(&txn->rsp, stripped_before);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7678 }
7679
7680 /* First, let's see if we want to capture this cookie. We check
7681 * that we don't already have a server side cookie, because we
7682 * can only capture one. Also as an optimisation, we ignore
7683 * cookies shorter than the declared name.
7684 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7685 if (sess->fe->capture_name != NULL &&
Willy Tarreau3bac9ff2007-03-18 17:31:28 +0100[diff] [blame]7686 txn->srv_cookie == NULL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7687 (val_end - att_beg >= sess->fe->capture_namelen) &&
7688 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7689 int log_len = val_end - att_beg;
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]7690 if ((txn->srv_cookie = pool_alloc(pool_head_capture)) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]7691 ha_alert("HTTP logging : out of memory.\n");
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7692 }
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7693 else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7694 if (log_len > sess->fe->capture_len)
7695 log_len = sess->fe->capture_len;
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7696 memcpy(txn->srv_cookie, att_beg, log_len);
7697 txn->srv_cookie[log_len] = 0;
7698 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7699 }
7700
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7701 srv = objt_server(s->target);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7702 /* now check if we need to process it for persistence */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7703 if (!(s->flags & SF_IGNORE_PRST) &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7704 (att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
7705 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7706 /* assume passive cookie by default */
7707 txn->flags &= ~TX_SCK_MASK;
7708 txn->flags |= TX_SCK_FOUND;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7709
7710 /* If the cookie is in insert mode on a known server, we'll delete
7711 * this occurrence because we'll insert another one later.
7712 * We'll delete it too if the "indirect" option is set and we're in
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7713 * a direct access.
7714 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7715 if (s->be->ck_opts & PR_CK_PSV) {
Willy Tarreauba4c5be2010-10-23 12:46:42 +0200[diff] [blame]7716 /* The "preserve" flag was set, we don't want to touch the
7717 * server's cookie.
7718 */
7719 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7720 else if ((srv && (s->be->ck_opts & PR_CK_INS)) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7721 ((s->flags & SF_DIRECT) && (s->be->ck_opts & PR_CK_IND))) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7722 /* this cookie must be deleted */
7723 if (*prev == ':' && next == hdr_end) {
7724 /* whole header */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7725 delta = b_rep_blk(&res->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7726 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7727 txn->hdr_idx.used--;
7728 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7729 cur_idx = old_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7730 hdr_next += delta;
7731 http_msg_move_end(&txn->rsp, delta);
7732 /* note: while both invalid now, <next> and <hdr_end>
7733 * are still equal, so the for() will stop as expected.
7734 */
7735 } else {
7736 /* just remove the value */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7737 int delta = del_hdr_value(&res->buf, &prev, next);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7738 next = prev;
7739 hdr_end += delta;
7740 hdr_next += delta;
7741 cur_hdr->len += delta;
7742 http_msg_move_end(&txn->rsp, delta);
7743 }
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7744 txn->flags &= ~TX_SCK_MASK;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7745 txn->flags |= TX_SCK_DELETED;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7746 /* and go on with next cookie */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7747 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7748 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_RW)) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7749 /* replace bytes val_beg->val_end with the cookie name associated
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7750 * with this server since we know it.
7751 */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7752 delta = b_rep_blk(&res->buf, val_beg, val_end, srv->cookie, srv->cklen);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7753 next += delta;
7754 hdr_end += delta;
7755 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7756 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7757 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7758
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7759 txn->flags &= ~TX_SCK_MASK;
7760 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7761 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7762 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_PFX)) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7763 /* insert the cookie name associated with this server
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7764 * before existing cookie, and insert a delimiter between them..
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7765 */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7766 delta = b_rep_blk(&res->buf, val_beg, val_beg, srv->cookie, srv->cklen + 1);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7767 next += delta;
7768 hdr_end += delta;
7769 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7770 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7771 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7772
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7773 val_beg[srv->cklen] = COOKIE_DELIM;
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7774 txn->flags &= ~TX_SCK_MASK;
7775 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7776 }
7777 }
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7778 /* that's done for this cookie, check the next one on the same
7779 * line when next != hdr_end (only if is_cookie2).
7780 */
7781 }
7782 /* check next header */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7783 old_idx = cur_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7784 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7785}
7786
7787
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7788/*
Willy Tarreau0ad8e0d2017-12-22 15:03:36 +0100[diff] [blame]7789 * Parses the Cache-Control and Pragma request header fields to determine if
7790 * the request may be served from the cache and/or if it is cacheable. Updates
7791 * s->txn->flags.
7792 */
7793void check_request_for_cacheability(struct stream *s, struct channel *chn)
7794{
7795 struct http_txn *txn = s->txn;
7796 char *p1, *p2;
7797 char *cur_ptr, *cur_end, *cur_next;
7798 int pragma_found;
7799 int cc_found;
7800 int cur_idx;
7801
7802 if ((txn->flags & (TX_CACHEABLE|TX_CACHE_IGNORE)) == TX_CACHE_IGNORE)
7803 return; /* nothing more to do here */
7804
7805 cur_idx = 0;
7806 pragma_found = cc_found = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]7807 cur_next = ci_head(chn) + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau0ad8e0d2017-12-22 15:03:36 +0100[diff] [blame]7808
7809 while ((cur_idx = txn->hdr_idx.v[cur_idx].next)) {
7810 struct hdr_idx_elem *cur_hdr;
7811 int val;
7812
7813 cur_hdr = &txn->hdr_idx.v[cur_idx];
7814 cur_ptr = cur_next;
7815 cur_end = cur_ptr + cur_hdr->len;
7816 cur_next = cur_end + cur_hdr->cr + 1;
7817
7818 /* We have one full header between cur_ptr and cur_end, and the
7819 * next header starts at cur_next.
7820 */
7821
7822 val = http_header_match2(cur_ptr, cur_end, "Pragma", 6);
7823 if (val) {
7824 if ((cur_end - (cur_ptr + val) >= 8) &&
7825 strncasecmp(cur_ptr + val, "no-cache", 8) == 0) {
7826 pragma_found = 1;
7827 continue;
7828 }
7829 }
7830
William Lallemand8a16fe02018-05-22 11:04:33 +0200[diff] [blame]7831 /* Don't use the cache and don't try to store if we found the
7832 * Authorization header */
7833 val = http_header_match2(cur_ptr, cur_end, "Authorization", 13);
7834 if (val) {
7835 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7836 txn->flags |= TX_CACHE_IGNORE;
7837 continue;
7838 }
7839
Willy Tarreau0ad8e0d2017-12-22 15:03:36 +0100[diff] [blame]7840 val = http_header_match2(cur_ptr, cur_end, "Cache-control", 13);
7841 if (!val)
7842 continue;
7843
7844 /* OK, right now we know we have a cache-control header at cur_ptr */
7845 cc_found = 1;
7846 p1 = cur_ptr + val; /* first non-space char after 'cache-control:' */
7847
7848 if (p1 >= cur_end) /* no more info */
7849 continue;
7850
7851 /* p1 is at the beginning of the value */
7852 p2 = p1;
7853 while (p2 < cur_end && *p2 != '=' && *p2 != ',' && !isspace((unsigned char)*p2))
7854 p2++;
7855
7856 /* we have a complete value between p1 and p2. We don't check the
7857 * values after max-age, max-stale nor min-fresh, we simply don't
7858 * use the cache when they're specified.
7859 */
7860 if (((p2 - p1 == 7) && strncasecmp(p1, "max-age", 7) == 0) ||
7861 ((p2 - p1 == 8) && strncasecmp(p1, "no-cache", 8) == 0) ||
7862 ((p2 - p1 == 9) && strncasecmp(p1, "max-stale", 9) == 0) ||
7863 ((p2 - p1 == 9) && strncasecmp(p1, "min-fresh", 9) == 0)) {
7864 txn->flags |= TX_CACHE_IGNORE;
7865 continue;
7866 }
7867
7868 if ((p2 - p1 == 8) && strncasecmp(p1, "no-store", 8) == 0) {
7869 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7870 continue;
7871 }
7872 }
7873
7874 /* RFC7234#5.4:
7875 * When the Cache-Control header field is also present and
7876 * understood in a request, Pragma is ignored.
7877 * When the Cache-Control header field is not present in a
7878 * request, caches MUST consider the no-cache request
7879 * pragma-directive as having the same effect as if
7880 * "Cache-Control: no-cache" were present.
7881 */
7882 if (!cc_found && pragma_found)
7883 txn->flags |= TX_CACHE_IGNORE;
7884}
7885
7886/*
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7887 * Check if response is cacheable or not. Updates s->txn->flags.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7888 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7889void check_response_for_cacheability(struct stream *s, struct channel *rtr)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7890{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7891 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7892 char *p1, *p2;
7893
7894 char *cur_ptr, *cur_end, *cur_next;
7895 int cur_idx;
7896
Willy Tarreau12b32f22017-12-21 16:08:09 +0100[diff] [blame]7897 if (txn->status < 200) {
7898 /* do not try to cache interim responses! */
7899 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7900 return;
Willy Tarreau12b32f22017-12-21 16:08:09 +0100[diff] [blame]7901 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7902
7903 /* Iterate through the headers.
7904 * we start with the start line.
7905 */
7906 cur_idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]7907 cur_next = ci_head(rtr) + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7908
7909 while ((cur_idx = txn->hdr_idx.v[cur_idx].next)) {
7910 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7911 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7912
7913 cur_hdr = &txn->hdr_idx.v[cur_idx];
7914 cur_ptr = cur_next;
7915 cur_end = cur_ptr + cur_hdr->len;
7916 cur_next = cur_end + cur_hdr->cr + 1;
7917
7918 /* We have one full header between cur_ptr and cur_end, and the
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7919 * next header starts at cur_next.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7920 */
7921
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7922 val = http_header_match2(cur_ptr, cur_end, "Pragma", 6);
7923 if (val) {
7924 if ((cur_end - (cur_ptr + val) >= 8) &&
7925 strncasecmp(cur_ptr + val, "no-cache", 8) == 0) {
7926 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7927 return;
7928 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7929 }
7930
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7931 val = http_header_match2(cur_ptr, cur_end, "Cache-control", 13);
7932 if (!val)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7933 continue;
7934
7935 /* OK, right now we know we have a cache-control header at cur_ptr */
7936
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7937 p1 = cur_ptr + val; /* first non-space char after 'cache-control:' */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7938
7939 if (p1 >= cur_end) /* no more info */
7940 continue;
7941
7942 /* p1 is at the beginning of the value */
7943 p2 = p1;
7944
Willy Tarreau8f8e6452007-06-17 21:51:38 +0200[diff] [blame]7945 while (p2 < cur_end && *p2 != '=' && *p2 != ',' && !isspace((unsigned char)*p2))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7946 p2++;
7947
7948 /* we have a complete value between p1 and p2 */
7949 if (p2 < cur_end && *p2 == '=') {
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7950 if (((cur_end - p2) > 1 && (p2 - p1 == 7) && strncasecmp(p1, "max-age=0", 9) == 0) ||
7951 ((cur_end - p2) > 1 && (p2 - p1 == 8) && strncasecmp(p1, "s-maxage=0", 10) == 0)) {
7952 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7953 continue;
7954 }
7955
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7956 /* we have something of the form no-cache="set-cookie" */
7957 if ((cur_end - p1 >= 21) &&
7958 strncasecmp(p1, "no-cache=\"set-cookie", 20) == 0
7959 && (p1[20] == '"' || p1[20] == ','))
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7960 txn->flags &= ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7961 continue;
7962 }
7963
7964 /* OK, so we know that either p2 points to the end of string or to a comma */
7965 if (((p2 - p1 == 7) && strncasecmp(p1, "private", 7) == 0) ||
Willy Tarreau5b15f902013-07-04 12:46:56 +0200[diff] [blame]7966 ((p2 - p1 == 8) && strncasecmp(p1, "no-cache", 8) == 0) ||
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7967 ((p2 - p1 == 8) && strncasecmp(p1, "no-store", 8) == 0)) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7968 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7969 return;
7970 }
7971
7972 if ((p2 - p1 == 6) && strncasecmp(p1, "public", 6) == 0) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7973 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7974 continue;
7975 }
7976 }
7977}
7978
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7979
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7980/*
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7981 * In a GET, HEAD or POST request, check if the requested URI matches the stats uri
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7982 * for the current backend.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7983 *
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7984 * It is assumed that the request is either a HEAD, GET, or POST and that the
Willy Tarreau295a8372011-03-10 11:25:07 +0100[diff] [blame]7985 * uri_auth field is valid.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7986 *
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7987 * Returns 1 if stats should be provided, otherwise 0.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7988 */
Willy Tarreau295a8372011-03-10 11:25:07 +0100[diff] [blame]7989int stats_check_uri(struct stream_interface *si, struct http_txn *txn, struct proxy *backend)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7990{
7991 struct uri_auth *uri_auth = backend->uri_auth;
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]7992 struct http_msg *msg = &txn->req;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]7993 const char *uri = ci_head(msg->chn)+ msg->sl.rq.u;
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7994
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7995 if (!uri_auth)
7996 return 0;
7997
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7998 if (txn->meth != HTTP_METH_GET && txn->meth != HTTP_METH_HEAD && txn->meth != HTTP_METH_POST)
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7999 return 0;
8000
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]8001 /* check URI size */
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]8002 if (uri_auth->uri_len > msg->sl.rq.u_l)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8003 return 0;
8004
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]8005 if (memcmp(uri, uri_auth->uri_prefix, uri_auth->uri_len) != 0)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8006 return 0;
8007
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8008 return 1;
8009}
8010
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8011/*
8012 * Capture a bad request or response and archive it in the proxy's structure.
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8013 * By default it tries to report the error position as msg->err_pos. However if
8014 * this one is not set, it will then report msg->next, which is the last known
8015 * parsing point. The function is able to deal with wrapping buffers. It always
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8016 * displays buffers as a contiguous area starting at buf->p.
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8017 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]8018void http_capture_bad_message(struct proxy *proxy, struct error_snapshot *es, struct stream *s,
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]8019 struct http_msg *msg,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]8020 enum h1_state state, struct proxy *other_end)
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8021{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8022 struct session *sess = strm_sess(s);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8023 struct channel *chn = msg->chn;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8024 int len1, len2;
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]8025
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]8026 HA_SPIN_LOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8027 es->len = MIN(ci_data(chn), global.tune.bufsize);
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]8028 len1 = b_wrap(&chn->buf) - ci_head(chn);
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8029 len1 = MIN(len1, es->len);
8030 len2 = es->len - len1; /* remaining data if buffer wraps */
8031
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]8032 if (!es->buf)
8033 es->buf = malloc(global.tune.bufsize);
8034
8035 if (es->buf) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8036 memcpy(es->buf, ci_head(chn), len1);
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]8037 if (len2)
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]8038 memcpy(es->buf + len1, b_orig(&chn->buf), len2);
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]8039 }
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]8040
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8041 if (msg->err_pos >= 0)
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8042 es->pos = msg->err_pos;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]8043 else
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8044 es->pos = msg->next;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]8045
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8046 es->when = date; // user-visible date
8047 es->sid = s->uniq_id;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]8048 es->srv = objt_server(s->target);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8049 es->oe = other_end;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8050 if (objt_conn(sess->origin))
8051 es->src = __objt_conn(sess->origin)->addr.from;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]8052 else
8053 memset(&es->src, 0, sizeof(es->src));
8054
Willy Tarreau078272e2010-12-12 12:46:33 +0100[diff] [blame]8055 es->state = state;
Willy Tarreau10479e42010-12-12 14:00:34 +0100[diff] [blame]8056 es->ev_id = error_snapshot_id++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8057 es->b_flags = chn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]8058 es->s_flags = s->flags;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8059 es->t_flags = s->txn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]8060 es->m_flags = msg->flags;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8061 es->b_out = co_data(chn);
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]8062 es->b_wrap = b_wrap(&chn->buf) - ci_head(chn);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8063 es->b_tot = chn->total;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]8064 es->m_clen = msg->chunk_len;
8065 es->m_blen = msg->body_len;
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]8066 HA_SPIN_UNLOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8067}
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8068
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8069/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
8070 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
8071 * performed over the whole headers. Otherwise it must contain a valid header
8072 * context, initialised with ctx->idx=0 for the first lookup in a series. If
8073 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
8074 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
8075 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8076 * -1. The value fetch stops at commas, so this function is suited for use with
8077 * list headers.
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8078 * The return value is 0 if nothing was found, or non-zero otherwise.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8079 */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]8080unsigned int http_get_hdr(const struct http_msg *msg, const char *hname, int hlen,
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8081 struct hdr_idx *idx, int occ,
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]8082 struct hdr_ctx *ctx, char **vptr, size_t *vlen)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8083{
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8084 struct hdr_ctx local_ctx;
8085 char *ptr_hist[MAX_HDR_HISTORY];
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]8086 unsigned int len_hist[MAX_HDR_HISTORY];
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8087 unsigned int hist_ptr;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8088 int found;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8089
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8090 if (!ctx) {
8091 local_ctx.idx = 0;
8092 ctx = &local_ctx;
8093 }
8094
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8095 if (occ >= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8096 /* search from the beginning */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8097 while (http_find_header2(hname, hlen, ci_head(msg->chn), idx, ctx)) {
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8098 occ--;
8099 if (occ <= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8100 *vptr = ctx->line + ctx->val;
8101 *vlen = ctx->vlen;
8102 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8103 }
8104 }
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8105 return 0;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8106 }
8107
8108 /* negative occurrence, we scan all the list then walk back */
8109 if (-occ > MAX_HDR_HISTORY)
8110 return 0;
8111
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8112 found = hist_ptr = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8113 while (http_find_header2(hname, hlen, ci_head(msg->chn), idx, ctx)) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8114 ptr_hist[hist_ptr] = ctx->line + ctx->val;
8115 len_hist[hist_ptr] = ctx->vlen;
8116 if (++hist_ptr >= MAX_HDR_HISTORY)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8117 hist_ptr = 0;
8118 found++;
8119 }
8120 if (-occ > found)
8121 return 0;
8122 /* OK now we have the last occurrence in [hist_ptr-1], and we need to
Willy Tarreau67dad272013-06-12 22:27:44 +0200[diff] [blame]8123 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
8124 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
8125 * to remain in the 0..9 range.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8126 */
Willy Tarreau67dad272013-06-12 22:27:44 +0200[diff] [blame]8127 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8128 if (hist_ptr >= MAX_HDR_HISTORY)
8129 hist_ptr -= MAX_HDR_HISTORY;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8130 *vptr = ptr_hist[hist_ptr];
8131 *vlen = len_hist[hist_ptr];
8132 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8133}
8134
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8135/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
8136 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
8137 * performed over the whole headers. Otherwise it must contain a valid header
8138 * context, initialised with ctx->idx=0 for the first lookup in a series. If
8139 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
8140 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
8141 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
8142 * -1. This function differs from http_get_hdr() in that it only returns full
8143 * line header values and does not stop at commas.
8144 * The return value is 0 if nothing was found, or non-zero otherwise.
8145 */
8146unsigned int http_get_fhdr(const struct http_msg *msg, const char *hname, int hlen,
8147 struct hdr_idx *idx, int occ,
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]8148 struct hdr_ctx *ctx, char **vptr, size_t *vlen)
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8149{
8150 struct hdr_ctx local_ctx;
8151 char *ptr_hist[MAX_HDR_HISTORY];
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]8152 unsigned int len_hist[MAX_HDR_HISTORY];
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8153 unsigned int hist_ptr;
8154 int found;
8155
8156 if (!ctx) {
8157 local_ctx.idx = 0;
8158 ctx = &local_ctx;
8159 }
8160
8161 if (occ >= 0) {
8162 /* search from the beginning */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8163 while (http_find_full_header2(hname, hlen, ci_head(msg->chn), idx, ctx)) {
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8164 occ--;
8165 if (occ <= 0) {
8166 *vptr = ctx->line + ctx->val;
8167 *vlen = ctx->vlen;
8168 return 1;
8169 }
8170 }
8171 return 0;
8172 }
8173
8174 /* negative occurrence, we scan all the list then walk back */
8175 if (-occ > MAX_HDR_HISTORY)
8176 return 0;
8177
8178 found = hist_ptr = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8179 while (http_find_full_header2(hname, hlen, ci_head(msg->chn), idx, ctx)) {
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8180 ptr_hist[hist_ptr] = ctx->line + ctx->val;
8181 len_hist[hist_ptr] = ctx->vlen;
8182 if (++hist_ptr >= MAX_HDR_HISTORY)
8183 hist_ptr = 0;
8184 found++;
8185 }
8186 if (-occ > found)
8187 return 0;
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]8188
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8189 /* OK now we have the last occurrence in [hist_ptr-1], and we need to
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]8190 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
8191 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
8192 * to remain in the 0..9 range.
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8193 */
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]8194 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8195 if (hist_ptr >= MAX_HDR_HISTORY)
8196 hist_ptr -= MAX_HDR_HISTORY;
8197 *vptr = ptr_hist[hist_ptr];
8198 *vlen = len_hist[hist_ptr];
8199 return 1;
8200}
8201
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]8202/*
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]8203 * Print a debug line with a header. Always stop at the first CR or LF char,
8204 * so it is safe to pass it a full buffer if needed. If <err> is not NULL, an
8205 * arrow is printed after the line which contains the pointer.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8206 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8207void debug_hdr(const char *dir, struct stream *s, const char *start, const char *end)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8208{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8209 struct session *sess = strm_sess(s);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]8210 int max;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8211
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8212 chunk_printf(&trash, "%08x:%s.%s[%04x:%04x]: ", s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]8213 dir,
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]8214 objt_conn(sess->origin) ? (unsigned short)objt_conn(sess->origin)->handle.fd : -1,
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]8215 objt_cs(s->si[1].end) ? (unsigned short)objt_cs(s->si[1].end)->conn->handle.fd : -1);
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]8216
8217 for (max = 0; start + max < end; max++)
8218 if (start[max] == '\r' || start[max] == '\n')
8219 break;
8220
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]8221 UBOUND(max, trash.size - trash.data - 3);
8222 trash.data += strlcpy2(trash.area + trash.data, start, max + 1);
8223 trash.area[trash.data++] = '\n';
8224 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8225}
8226
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8227
8228/* Allocate a new HTTP transaction for stream <s> unless there is one already.
8229 * The hdr_idx is allocated as well. In case of allocation failure, everything
8230 * allocated is freed and NULL is returned. Otherwise the new transaction is
8231 * assigned to the stream and returned.
8232 */
8233struct http_txn *http_alloc_txn(struct stream *s)
8234{
8235 struct http_txn *txn = s->txn;
8236
8237 if (txn)
8238 return txn;
8239
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8240 txn = pool_alloc(pool_head_http_txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8241 if (!txn)
8242 return txn;
8243
8244 txn->hdr_idx.size = global.tune.max_http_hdr;
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8245 txn->hdr_idx.v = pool_alloc(pool_head_hdr_idx);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8246 if (!txn->hdr_idx.v) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8247 pool_free(pool_head_http_txn, txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8248 return NULL;
8249 }
8250
8251 s->txn = txn;
8252 return txn;
8253}
8254
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8255void http_txn_reset_req(struct http_txn *txn)
8256{
8257 txn->req.flags = 0;
8258 txn->req.sol = txn->req.eol = txn->req.eoh = 0; /* relative to the buffer */
8259 txn->req.next = 0;
8260 txn->req.chunk_len = 0LL;
8261 txn->req.body_len = 0LL;
8262 txn->req.msg_state = HTTP_MSG_RQBEFORE; /* at the very beginning of the request */
8263}
8264
8265void http_txn_reset_res(struct http_txn *txn)
8266{
8267 txn->rsp.flags = 0;
8268 txn->rsp.sol = txn->rsp.eol = txn->rsp.eoh = 0; /* relative to the buffer */
8269 txn->rsp.next = 0;
8270 txn->rsp.chunk_len = 0LL;
8271 txn->rsp.body_len = 0LL;
8272 txn->rsp.msg_state = HTTP_MSG_RPBEFORE; /* at the very beginning of the response */
8273}
8274
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8275/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8276 * Initialize a new HTTP transaction for stream <s>. It is assumed that all
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8277 * the required fields are properly allocated and that we only need to (re)init
8278 * them. This should be used before processing any new request.
8279 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8280void http_init_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8281{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8282 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8283 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8284
8285 txn->flags = 0;
8286 txn->status = -1;
8287
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]8288 txn->cookie_first_date = 0;
8289 txn->cookie_last_date = 0;
8290
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8291 txn->srv_cookie = NULL;
8292 txn->cli_cookie = NULL;
8293 txn->uri = NULL;
8294
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8295 http_txn_reset_req(txn);
8296 http_txn_reset_res(txn);
8297
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8298 txn->req.chn = &s->req;
8299 txn->rsp.chn = &s->res;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8300
8301 txn->auth.method = HTTP_AUTH_UNKNOWN;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8302
8303 txn->req.err_pos = txn->rsp.err_pos = -2; /* block buggy requests/responses */
8304 if (fe->options2 & PR_O2_REQBUG_OK)
8305 txn->req.err_pos = -1; /* let buggy requests pass */
8306
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8307 if (txn->hdr_idx.v)
8308 hdr_idx_init(&txn->hdr_idx);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]8309
8310 vars_init(&s->vars_txn, SCOPE_TXN);
8311 vars_init(&s->vars_reqres, SCOPE_REQ);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8312}
8313
8314/* to be used at the end of a transaction */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8315void http_end_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8316{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8317 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8318 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8319
8320 /* these ones will have been dynamically allocated */
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8321 pool_free(pool_head_requri, txn->uri);
8322 pool_free(pool_head_capture, txn->cli_cookie);
8323 pool_free(pool_head_capture, txn->srv_cookie);
8324 pool_free(pool_head_uniqueid, s->unique_id);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8325
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]8326 s->unique_id = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8327 txn->uri = NULL;
8328 txn->srv_cookie = NULL;
8329 txn->cli_cookie = NULL;
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8330
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8331 if (s->req_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8332 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8333 for (h = fe->req_cap; h; h = h->next)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8334 pool_free(h->pool, s->req_cap[h->index]);
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8335 memset(s->req_cap, 0, fe->nb_req_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8336 }
8337
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8338 if (s->res_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8339 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8340 for (h = fe->rsp_cap; h; h = h->next)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8341 pool_free(h->pool, s->res_cap[h->index]);
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8342 memset(s->res_cap, 0, fe->nb_rsp_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8343 }
8344
Willy Tarreau6204cd92016-03-10 16:33:04 +0100[diff] [blame]8345 vars_prune(&s->vars_txn, s->sess, s);
8346 vars_prune(&s->vars_reqres, s->sess, s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8347}
8348
8349/* to be used at the end of a transaction to prepare a new one */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8350void http_reset_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8351{
8352 http_end_txn(s);
8353 http_init_txn(s);
8354
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]8355 /* reinitialise the current rule list pointer to NULL. We are sure that
8356 * any rulelist match the NULL pointer.
8357 */
8358 s->current_rule_list = NULL;
8359
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8360 s->be = strm_fe(s);
8361 s->logs.logwait = strm_fe(s)->to_log;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]8362 s->logs.level = 0;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8363 stream_del_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]8364 s->target = NULL;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8365 /* re-init store persistence */
8366 s->store_count = 0;
Willy Tarreau1f0da242014-01-25 11:01:50 +0100[diff] [blame]8367 s->uniq_id = global.req_count++;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8368
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8369 s->req.flags |= CF_READ_DONTWAIT; /* one read is usually enough */
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8370
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8371 /* We must trim any excess data from the response buffer, because we
8372 * may have blocked an invalid response from a server that we don't
8373 * want to accidentely forward once we disable the analysers, nor do
8374 * we want those data to come along with next response. A typical
8375 * example of such data would be from a buggy server responding to
8376 * a HEAD with some data, or sending more than the advertised
8377 * content-length.
8378 */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8379 if (unlikely(ci_data(&s->res)))
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]8380 b_set_data(&s->res.buf, co_data(&s->res));
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8381
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]8382 /* Now we can realign the response buffer */
Willy Tarreaud5b343b2018-06-06 06:42:46 +0200[diff] [blame]8383 c_realign_if_empty(&s->res);
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]8384
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8385 s->req.rto = strm_fe(s)->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8386 s->req.wto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8387
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8388 s->res.rto = TICK_ETERNITY;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8389 s->res.wto = strm_fe(s)->timeout.client;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8390
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8391 s->req.rex = TICK_ETERNITY;
8392 s->req.wex = TICK_ETERNITY;
8393 s->req.analyse_exp = TICK_ETERNITY;
8394 s->res.rex = TICK_ETERNITY;
8395 s->res.wex = TICK_ETERNITY;
8396 s->res.analyse_exp = TICK_ETERNITY;
Hongbo Longe39683c2017-03-10 18:41:51 +0100[diff] [blame]8397 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8398}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8399
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8400void free_http_res_rules(struct list *r)
8401{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8402 struct act_rule *tr, *pr;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8403
8404 list_for_each_entry_safe(pr, tr, r, list) {
8405 LIST_DEL(&pr->list);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8406 regex_free(&pr->arg.hdr_add.re);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8407 free(pr);
8408 }
8409}
8410
8411void free_http_req_rules(struct list *r)
8412{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8413 struct act_rule *tr, *pr;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8414
8415 list_for_each_entry_safe(pr, tr, r, list) {
8416 LIST_DEL(&pr->list);
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8417 if (pr->action == ACT_HTTP_REQ_AUTH)
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8418 free(pr->arg.auth.realm);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8419
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8420 regex_free(&pr->arg.hdr_add.re);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8421 free(pr);
8422 }
8423}
8424
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8425/* parse an "http-request" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8426struct act_rule *parse_http_req_cond(const char **args, const char *file, int linenum, struct proxy *proxy)
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8427{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8428 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8429 struct action_kw *custom = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8430 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8431 char *error;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8432
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]8433 rule = calloc(1, sizeof(*rule));
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8434 if (!rule) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8435 ha_alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8436 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8437 }
8438
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8439 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8440 rule->action = ACT_ACTION_ALLOW;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8441 cur_arg = 1;
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8442 } else if (!strcmp(args[0], "deny") || !strcmp(args[0], "block") || !strcmp(args[0], "tarpit")) {
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8443 int code;
8444 int hc;
8445
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8446 if (!strcmp(args[0], "tarpit")) {
8447 rule->action = ACT_HTTP_REQ_TARPIT;
8448 rule->deny_status = HTTP_ERR_500;
8449 }
8450 else {
8451 rule->action = ACT_ACTION_DENY;
8452 rule->deny_status = HTTP_ERR_403;
8453 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8454 cur_arg = 1;
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8455 if (strcmp(args[cur_arg], "deny_status") == 0) {
8456 cur_arg++;
8457 if (!args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8458 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing status code.\n",
8459 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8460 goto out_err;
8461 }
8462
8463 code = atol(args[cur_arg]);
8464 cur_arg++;
8465 for (hc = 0; hc < HTTP_ERR_SIZE; hc++) {
8466 if (http_err_codes[hc] == code) {
8467 rule->deny_status = hc;
8468 break;
8469 }
8470 }
8471
8472 if (hc >= HTTP_ERR_SIZE) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8473 ha_warning("parsing [%s:%d] : status code %d not handled, using default code %d.\n",
8474 file, linenum, code, http_err_codes[rule->deny_status]);
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8475 }
8476 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8477 } else if (!strcmp(args[0], "auth")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8478 rule->action = ACT_HTTP_REQ_AUTH;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8479 cur_arg = 1;
8480
8481 while(*args[cur_arg]) {
8482 if (!strcmp(args[cur_arg], "realm")) {
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8483 rule->arg.auth.realm = strdup(args[cur_arg + 1]);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8484 cur_arg+=2;
8485 continue;
8486 } else
8487 break;
8488 }
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8489 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8490 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8491 cur_arg = 1;
8492
8493 if (!*args[cur_arg] ||
8494 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8495 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer value).\n",
8496 file, linenum, args[0]);
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8497 goto out_err;
8498 }
8499 rule->arg.nice = atoi(args[cur_arg]);
8500 if (rule->arg.nice < -1024)
8501 rule->arg.nice = -1024;
8502 else if (rule->arg.nice > 1024)
8503 rule->arg.nice = 1024;
8504 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8505 } else if (!strcmp(args[0], "set-tos")) {
8506#ifdef IP_TOS
8507 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8508 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8509 cur_arg = 1;
8510
8511 if (!*args[cur_arg] ||
8512 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8513 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8514 file, linenum, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8515 goto out_err;
8516 }
8517
8518 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8519 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8520 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8521 file, linenum, err, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8522 goto out_err;
8523 }
8524 cur_arg++;
8525#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8526 ha_alert("parsing [%s:%d]: 'http-request %s' is not supported on this platform (IP_TOS undefined).\n", file, linenum, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8527 goto out_err;
8528#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8529 } else if (!strcmp(args[0], "set-mark")) {
8530#ifdef SO_MARK
8531 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8532 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8533 cur_arg = 1;
8534
8535 if (!*args[cur_arg] ||
8536 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8537 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8538 file, linenum, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8539 goto out_err;
8540 }
8541
8542 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8543 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8544 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8545 file, linenum, err, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8546 goto out_err;
8547 }
8548 cur_arg++;
8549 global.last_checks |= LSTCHK_NETADM;
8550#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8551 ha_alert("parsing [%s:%d]: 'http-request %s' is not supported on this platform (SO_MARK undefined).\n", file, linenum, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8552 goto out_err;
8553#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8554 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8555 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8556 cur_arg = 1;
8557
8558 if (!*args[cur_arg] ||
8559 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8560 bad_log_level:
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8561 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (log level name or 'silent').\n",
8562 file, linenum, args[0]);
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8563 goto out_err;
8564 }
8565 if (strcmp(args[cur_arg], "silent") == 0)
8566 rule->arg.loglevel = -1;
8567 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
8568 goto bad_log_level;
8569 cur_arg++;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8570 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8571 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8572 cur_arg = 1;
8573
Willy Tarreau8d1c5162013-04-03 14:13:58 +0200[diff] [blame]8574 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8575 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8576 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8577 file, linenum, args[0]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8578 goto out_err;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8579 }
8580
8581 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8582 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8583 LIST_INIT(&rule->arg.hdr_add.fmt);
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]8584
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8585 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8586 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8587 if (!parse_logformat_string(args[cur_arg + 1], proxy, &rule->arg.hdr_add.fmt, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8588 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8589 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8590 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8591 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8592 goto out_err;
8593 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8594 free(proxy->conf.lfs_file);
8595 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8596 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8597 cur_arg += 2;
Willy Tarreaub8543922014-06-17 18:58:26 +0200[diff] [blame]8598 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8599 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8600 cur_arg = 1;
8601
8602 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann92df3702014-06-24 11:10:00 +0200[diff] [blame]8603 (*args[cur_arg+3] && strcmp(args[cur_arg+3], "if") != 0 && strcmp(args[cur_arg+3], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8604 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 3 arguments.\n",
8605 file, linenum, args[0]);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8606 goto out_err;
8607 }
8608
8609 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8610 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8611 LIST_INIT(&rule->arg.hdr_add.fmt);
8612
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8613 error = NULL;
8614 if (!regex_comp(args[cur_arg + 1], &rule->arg.hdr_add.re, 1, 1, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8615 ha_alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8616 args[cur_arg + 1], error);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8617 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8618 goto out_err;
8619 }
8620
8621 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8622 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8623 if (!parse_logformat_string(args[cur_arg + 2], proxy, &rule->arg.hdr_add.fmt, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8624 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8625 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8626 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8627 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8628 goto out_err;
8629 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8630
8631 free(proxy->conf.lfs_file);
8632 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8633 proxy->conf.lfs_line = proxy->conf.args.line;
8634 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8635 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8636 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8637 cur_arg = 1;
8638
8639 if (!*args[cur_arg] ||
8640 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8641 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8642 file, linenum, args[0]);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8643 goto out_err;
8644 }
8645
8646 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8647 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8648
8649 proxy->conf.args.ctx = ARGC_HRQ;
8650 free(proxy->conf.lfs_file);
8651 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8652 proxy->conf.lfs_line = proxy->conf.args.line;
8653 cur_arg += 1;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]8654 } else if (strncmp(args[0], "track-sc", 8) == 0) {
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8655 struct sample_expr *expr;
8656 unsigned int where;
8657 char *err = NULL;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]8658 unsigned int tsc_num;
8659 const char *tsc_num_str;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8660
8661 cur_arg = 1;
8662 proxy->conf.args.ctx = ARGC_TRK;
8663
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]8664 tsc_num_str = &args[0][8];
8665 if (cfg_parse_track_sc_num(&tsc_num, tsc_num_str, tsc_num_str + strlen(tsc_num_str), &err) == -1) {
8666 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8667 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
8668 free(err);
8669 goto out_err;
8670 }
8671
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8672 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
8673 if (!expr) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8674 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8675 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8676 free(err);
8677 goto out_err;
8678 }
8679
8680 where = 0;
8681 if (proxy->cap & PR_CAP_FE)
8682 where |= SMP_VAL_FE_HRQ_HDR;
8683 if (proxy->cap & PR_CAP_BE)
8684 where |= SMP_VAL_BE_HRQ_HDR;
8685
8686 if (!(expr->fetch->val & where)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8687 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule :"
8688 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
8689 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
8690 args[cur_arg-1], sample_src_names(expr->fetch->use));
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8691 free(expr);
8692 goto out_err;
8693 }
8694
8695 if (strcmp(args[cur_arg], "table") == 0) {
8696 cur_arg++;
8697 if (!args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8698 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing table name.\n",
8699 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8700 free(expr);
8701 goto out_err;
8702 }
8703 /* we copy the table name for now, it will be resolved later */
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8704 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8705 cur_arg++;
8706 }
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8707 rule->arg.trk_ctr.expr = expr;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]8708 rule->action = ACT_ACTION_TRK_SC0 + tsc_num;
Christopher Faulet78880fb2017-09-18 14:43:55 +0200[diff] [blame]8709 rule->check_ptr = check_trk_action;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8710 } else if (strcmp(args[0], "redirect") == 0) {
8711 struct redirect_rule *redir;
Willy Tarreau6d4890c2013-11-18 18:04:25 +0100[diff] [blame]8712 char *errmsg = NULL;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8713
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]8714 if ((redir = http_parse_redirect_rule(file, linenum, proxy, (const char **)args + 1, &errmsg, 1, 0)) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8715 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8716 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8717 goto out_err;
8718 }
8719
8720 /* this redirect rule might already contain a parsed condition which
8721 * we'll pass to the http-request rule.
8722 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8723 rule->action = ACT_HTTP_REDIR;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8724 rule->arg.redir = redir;
8725 rule->cond = redir->cond;
8726 redir->cond = NULL;
8727 cur_arg = 2;
8728 return rule;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8729 } else if (strncmp(args[0], "add-acl", 7) == 0) {
8730 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8731 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8732 /*
8733 * '+ 8' for 'add-acl('
8734 * '- 9' for 'add-acl(' + trailing ')'
8735 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8736 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8737
8738 cur_arg = 1;
8739
8740 if (!*args[cur_arg] ||
8741 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8742 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8743 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8744 goto out_err;
8745 }
8746
8747 LIST_INIT(&rule->arg.map.key);
8748 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8749 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8750 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8751 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8752 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8753 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8754 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8755 goto out_err;
8756 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8757 free(proxy->conf.lfs_file);
8758 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8759 proxy->conf.lfs_line = proxy->conf.args.line;
8760 cur_arg += 1;
8761 } else if (strncmp(args[0], "del-acl", 7) == 0) {
8762 /* http-request del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8763 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8764 /*
8765 * '+ 8' for 'del-acl('
8766 * '- 9' for 'del-acl(' + trailing ')'
8767 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8768 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8769
8770 cur_arg = 1;
8771
8772 if (!*args[cur_arg] ||
8773 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8774 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8775 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8776 goto out_err;
8777 }
8778
8779 LIST_INIT(&rule->arg.map.key);
8780 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8781 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8782 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8783 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8784 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8785 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8786 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8787 goto out_err;
8788 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8789 free(proxy->conf.lfs_file);
8790 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8791 proxy->conf.lfs_line = proxy->conf.args.line;
8792 cur_arg += 1;
8793 } else if (strncmp(args[0], "del-map", 7) == 0) {
8794 /* http-request del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8795 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8796 /*
8797 * '+ 8' for 'del-map('
8798 * '- 9' for 'del-map(' + trailing ')'
8799 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8800 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8801
8802 cur_arg = 1;
8803
8804 if (!*args[cur_arg] ||
8805 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8806 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8807 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8808 goto out_err;
8809 }
8810
8811 LIST_INIT(&rule->arg.map.key);
8812 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8813 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8814 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8815 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8816 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8817 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8818 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8819 goto out_err;
8820 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8821 free(proxy->conf.lfs_file);
8822 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8823 proxy->conf.lfs_line = proxy->conf.args.line;
8824 cur_arg += 1;
8825 } else if (strncmp(args[0], "set-map", 7) == 0) {
8826 /* http-request set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8827 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8828 /*
8829 * '+ 8' for 'set-map('
8830 * '- 9' for 'set-map(' + trailing ')'
8831 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8832 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8833
8834 cur_arg = 1;
8835
8836 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8837 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8838 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8839 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8840 goto out_err;
8841 }
8842
8843 LIST_INIT(&rule->arg.map.key);
8844 LIST_INIT(&rule->arg.map.value);
8845 proxy->conf.args.ctx = ARGC_HRQ;
8846
8847 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8848 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8849 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8850 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8851 ha_alert("parsing [%s:%d]: 'http-request %s' key: %s.\n",
8852 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8853 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8854 goto out_err;
8855 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8856
8857 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8858 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8859 if (!parse_logformat_string(args[cur_arg + 1], proxy, &rule->arg.map.value, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8860 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8861 ha_alert("parsing [%s:%d]: 'http-request %s' pattern: %s.\n",
8862 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8863 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8864 goto out_err;
8865 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8866 free(proxy->conf.lfs_file);
8867 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8868 proxy->conf.lfs_line = proxy->conf.args.line;
8869
8870 cur_arg += 2;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8871 } else if (((custom = action_http_req_custom(args[0])) != NULL)) {
8872 char *errmsg = NULL;
8873 cur_arg = 1;
8874 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]8875 rule->from = ACT_F_HTTP_REQ;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]8876 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]8877 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8878 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8879 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8880 free(errmsg);
8881 goto out_err;
8882 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8883 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]8884 action_build_list(&http_req_keywords.list, &trash);
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8885 ha_alert("parsing [%s:%d]: 'http-request' expects 'allow', 'deny', 'auth', 'redirect', "
8886 "'tarpit', 'add-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
8887 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', 'track-sc*'"
8888 "%s%s, but got '%s'%s.\n",
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]8889 file, linenum, *trash.area ? ", " : "", trash.area,
8890 args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8891 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8892 }
8893
8894 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
8895 struct acl_cond *cond;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]8896 char *errmsg = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8897
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]8898 if ((cond = build_acl_cond(file, linenum, &proxy->acl, proxy, args+cur_arg, &errmsg)) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8899 ha_alert("parsing [%s:%d] : error detected while parsing an 'http-request %s' condition : %s.\n",
8900 file, linenum, args[0], errmsg);
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]8901 free(errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8902 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8903 }
8904 rule->cond = cond;
8905 }
8906 else if (*args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8907 ha_alert("parsing [%s:%d]: 'http-request %s' expects 'realm' for 'auth' or"
8908 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
8909 file, linenum, args[0], args[cur_arg]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8910 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8911 }
8912
8913 return rule;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8914 out_err:
8915 free(rule);
8916 return NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8917}
8918
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8919/* parse an "http-respose" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8920struct act_rule *parse_http_res_cond(const char **args, const char *file, int linenum, struct proxy *proxy)
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8921{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8922 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8923 struct action_kw *custom = NULL;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8924 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8925 char *error;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8926
8927 rule = calloc(1, sizeof(*rule));
8928 if (!rule) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8929 ha_alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8930 goto out_err;
8931 }
8932
8933 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8934 rule->action = ACT_ACTION_ALLOW;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8935 cur_arg = 1;
8936 } else if (!strcmp(args[0], "deny")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8937 rule->action = ACT_ACTION_DENY;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8938 cur_arg = 1;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8939 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8940 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8941 cur_arg = 1;
8942
8943 if (!*args[cur_arg] ||
8944 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8945 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer value).\n",
8946 file, linenum, args[0]);
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8947 goto out_err;
8948 }
8949 rule->arg.nice = atoi(args[cur_arg]);
8950 if (rule->arg.nice < -1024)
8951 rule->arg.nice = -1024;
8952 else if (rule->arg.nice > 1024)
8953 rule->arg.nice = 1024;
8954 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8955 } else if (!strcmp(args[0], "set-tos")) {
8956#ifdef IP_TOS
8957 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8958 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8959 cur_arg = 1;
8960
8961 if (!*args[cur_arg] ||
8962 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8963 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8964 file, linenum, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8965 goto out_err;
8966 }
8967
8968 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8969 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8970 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8971 file, linenum, err, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8972 goto out_err;
8973 }
8974 cur_arg++;
8975#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8976 ha_alert("parsing [%s:%d]: 'http-response %s' is not supported on this platform (IP_TOS undefined).\n", file, linenum, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8977 goto out_err;
8978#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8979 } else if (!strcmp(args[0], "set-mark")) {
8980#ifdef SO_MARK
8981 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8982 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8983 cur_arg = 1;
8984
8985 if (!*args[cur_arg] ||
8986 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8987 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8988 file, linenum, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8989 goto out_err;
8990 }
8991
8992 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8993 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8994 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8995 file, linenum, err, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8996 goto out_err;
8997 }
8998 cur_arg++;
8999 global.last_checks |= LSTCHK_NETADM;
9000#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9001 ha_alert("parsing [%s:%d]: 'http-response %s' is not supported on this platform (SO_MARK undefined).\n", file, linenum, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]9002 goto out_err;
9003#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9004 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9005 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9006 cur_arg = 1;
9007
9008 if (!*args[cur_arg] ||
9009 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9010 bad_log_level:
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9011 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (log level name or 'silent').\n",
9012 file, linenum, args[0]);
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9013 goto out_err;
9014 }
9015 if (strcmp(args[cur_arg], "silent") == 0)
9016 rule->arg.loglevel = -1;
Ruoshan Huangdd016782016-06-15 22:16:03 +0800[diff] [blame]9017 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9018 goto bad_log_level;
9019 cur_arg++;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9020 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9021 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9022 cur_arg = 1;
9023
9024 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9025 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9026 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
9027 file, linenum, args[0]);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9028 goto out_err;
9029 }
9030
9031 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9032 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9033 LIST_INIT(&rule->arg.hdr_add.fmt);
9034
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]9035 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9036 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9037 if (!parse_logformat_string(args[cur_arg + 1], proxy, &rule->arg.hdr_add.fmt, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9038 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9039 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9040 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9041 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9042 goto out_err;
9043 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9044 free(proxy->conf.lfs_file);
9045 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9046 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9047 cur_arg += 2;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9048 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9049 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9050 cur_arg = 1;
9051
9052 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann12cb00b2014-08-08 17:29:06 +0200[diff] [blame]9053 (*args[cur_arg+3] && strcmp(args[cur_arg+3], "if") != 0 && strcmp(args[cur_arg+3], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9054 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 3 arguments.\n",
9055 file, linenum, args[0]);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9056 goto out_err;
9057 }
9058
9059 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9060 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9061 LIST_INIT(&rule->arg.hdr_add.fmt);
9062
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]9063 error = NULL;
9064 if (!regex_comp(args[cur_arg + 1], &rule->arg.hdr_add.re, 1, 1, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9065 ha_alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
9066 args[cur_arg + 1], error);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]9067 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9068 goto out_err;
9069 }
9070
9071 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9072 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9073 if (!parse_logformat_string(args[cur_arg + 2], proxy, &rule->arg.hdr_add.fmt, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9074 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9075 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9076 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9077 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9078 goto out_err;
9079 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9080
9081 free(proxy->conf.lfs_file);
9082 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9083 proxy->conf.lfs_line = proxy->conf.args.line;
9084 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9085 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9086 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9087 cur_arg = 1;
9088
9089 if (!*args[cur_arg] ||
9090 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9091 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9092 file, linenum, args[0]);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9093 goto out_err;
9094 }
9095
9096 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9097 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9098
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9099 proxy->conf.args.ctx = ARGC_HRS;
9100 free(proxy->conf.lfs_file);
9101 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9102 proxy->conf.lfs_line = proxy->conf.args.line;
9103 cur_arg += 1;
9104 } else if (strncmp(args[0], "add-acl", 7) == 0) {
9105 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9106 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9107 /*
9108 * '+ 8' for 'add-acl('
9109 * '- 9' for 'add-acl(' + trailing ')'
9110 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9111 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9112
9113 cur_arg = 1;
9114
9115 if (!*args[cur_arg] ||
9116 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9117 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9118 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9119 goto out_err;
9120 }
9121
9122 LIST_INIT(&rule->arg.map.key);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9123 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9124 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9125 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9126 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9127 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9128 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9129 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9130 goto out_err;
9131 }
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9132 free(proxy->conf.lfs_file);
9133 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9134 proxy->conf.lfs_line = proxy->conf.args.line;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9135
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9136 cur_arg += 1;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9137 } else if (strncmp(args[0], "del-acl", 7) == 0) {
9138 /* http-response del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9139 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9140 /*
9141 * '+ 8' for 'del-acl('
9142 * '- 9' for 'del-acl(' + trailing ')'
9143 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9144 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9145
9146 cur_arg = 1;
9147
9148 if (!*args[cur_arg] ||
9149 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9150 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9151 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9152 goto out_err;
9153 }
9154
9155 LIST_INIT(&rule->arg.map.key);
9156 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9157 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9158 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9159 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9160 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9161 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9162 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9163 goto out_err;
9164 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9165 free(proxy->conf.lfs_file);
9166 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9167 proxy->conf.lfs_line = proxy->conf.args.line;
9168 cur_arg += 1;
9169 } else if (strncmp(args[0], "del-map", 7) == 0) {
9170 /* http-response del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9171 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9172 /*
9173 * '+ 8' for 'del-map('
9174 * '- 9' for 'del-map(' + trailing ')'
9175 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9176 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9177
9178 cur_arg = 1;
9179
9180 if (!*args[cur_arg] ||
9181 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9182 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9183 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9184 goto out_err;
9185 }
9186
9187 LIST_INIT(&rule->arg.map.key);
9188 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9189 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9190 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9191 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9192 ha_alert("parsing [%s:%d]: 'http-response %s' %s.\n",
9193 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9194 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9195 goto out_err;
9196 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9197 free(proxy->conf.lfs_file);
9198 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9199 proxy->conf.lfs_line = proxy->conf.args.line;
9200 cur_arg += 1;
9201 } else if (strncmp(args[0], "set-map", 7) == 0) {
9202 /* http-response set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9203 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9204 /*
9205 * '+ 8' for 'set-map('
9206 * '- 9' for 'set-map(' + trailing ')'
9207 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9208 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9209
9210 cur_arg = 1;
9211
9212 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9213 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9214 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
9215 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9216 goto out_err;
9217 }
9218
9219 LIST_INIT(&rule->arg.map.key);
9220 LIST_INIT(&rule->arg.map.value);
9221
9222 proxy->conf.args.ctx = ARGC_HRS;
9223
9224 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9225 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9226 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9227 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9228 ha_alert("parsing [%s:%d]: 'http-response %s' name: %s.\n",
9229 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9230 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9231 goto out_err;
9232 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9233
9234 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9235 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9236 if (!parse_logformat_string(args[cur_arg + 1], proxy, &rule->arg.map.value, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9237 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9238 ha_alert("parsing [%s:%d]: 'http-response %s' value: %s.\n",
9239 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9240 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9241 goto out_err;
9242 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9243
9244 free(proxy->conf.lfs_file);
9245 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9246 proxy->conf.lfs_line = proxy->conf.args.line;
9247
9248 cur_arg += 2;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9249 } else if (strcmp(args[0], "redirect") == 0) {
9250 struct redirect_rule *redir;
9251 char *errmsg = NULL;
9252
9253 if ((redir = http_parse_redirect_rule(file, linenum, proxy, (const char **)args + 1, &errmsg, 1, 1)) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9254 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9255 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9256 goto out_err;
9257 }
9258
9259 /* this redirect rule might already contain a parsed condition which
9260 * we'll pass to the http-request rule.
9261 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9262 rule->action = ACT_HTTP_REDIR;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9263 rule->arg.redir = redir;
9264 rule->cond = redir->cond;
9265 redir->cond = NULL;
9266 cur_arg = 2;
9267 return rule;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]9268 } else if (strncmp(args[0], "track-sc", 8) == 0) {
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9269 struct sample_expr *expr;
9270 unsigned int where;
9271 char *err = NULL;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]9272 unsigned int tsc_num;
9273 const char *tsc_num_str;
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9274
9275 cur_arg = 1;
9276 proxy->conf.args.ctx = ARGC_TRK;
9277
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]9278 tsc_num_str = &args[0][8];
9279 if (cfg_parse_track_sc_num(&tsc_num, tsc_num_str, tsc_num_str + strlen(tsc_num_str), &err) == -1) {
9280 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9281 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
9282 free(err);
9283 goto out_err;
9284 }
9285
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9286 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
9287 if (!expr) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9288 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9289 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9290 free(err);
9291 goto out_err;
9292 }
9293
9294 where = 0;
9295 if (proxy->cap & PR_CAP_FE)
9296 where |= SMP_VAL_FE_HRS_HDR;
9297 if (proxy->cap & PR_CAP_BE)
9298 where |= SMP_VAL_BE_HRS_HDR;
9299
9300 if (!(expr->fetch->val & where)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9301 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule :"
9302 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
9303 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
9304 args[cur_arg-1], sample_src_names(expr->fetch->use));
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9305 free(expr);
9306 goto out_err;
9307 }
9308
9309 if (strcmp(args[cur_arg], "table") == 0) {
9310 cur_arg++;
9311 if (!args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9312 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : missing table name.\n",
9313 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9314 free(expr);
9315 goto out_err;
9316 }
9317 /* we copy the table name for now, it will be resolved later */
9318 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
9319 cur_arg++;
9320 }
9321 rule->arg.trk_ctr.expr = expr;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]9322 rule->action = ACT_ACTION_TRK_SC0 + tsc_num;
Christopher Faulet78880fb2017-09-18 14:43:55 +0200[diff] [blame]9323 rule->check_ptr = check_trk_action;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9324 } else if (((custom = action_http_res_custom(args[0])) != NULL)) {
9325 char *errmsg = NULL;
9326 cur_arg = 1;
9327 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]9328 rule->from = ACT_F_HTTP_RES;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]9329 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]9330 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9331 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9332 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9333 free(errmsg);
9334 goto out_err;
9335 }
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9336 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9337 action_build_list(&http_res_keywords.list, &trash);
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9338 ha_alert("parsing [%s:%d]: 'http-response' expects 'allow', 'deny', 'redirect', "
9339 "'add-header', 'del-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
9340 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', 'track-sc*'"
9341 "%s%s, but got '%s'%s.\n",
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9342 file, linenum, *trash.area ? ", " : "", trash.area,
9343 args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9344 goto out_err;
9345 }
9346
9347 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
9348 struct acl_cond *cond;
9349 char *errmsg = NULL;
9350
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]9351 if ((cond = build_acl_cond(file, linenum, &proxy->acl, proxy, args+cur_arg, &errmsg)) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9352 ha_alert("parsing [%s:%d] : error detected while parsing an 'http-response %s' condition : %s.\n",
9353 file, linenum, args[0], errmsg);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9354 free(errmsg);
9355 goto out_err;
9356 }
9357 rule->cond = cond;
9358 }
9359 else if (*args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9360 ha_alert("parsing [%s:%d]: 'http-response %s' expects"
9361 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
9362 file, linenum, args[0], args[cur_arg]);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9363 goto out_err;
9364 }
9365
9366 return rule;
9367 out_err:
9368 free(rule);
9369 return NULL;
9370}
9371
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9372/* Parses a redirect rule. Returns the redirect rule on success or NULL on error,
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9373 * with <err> filled with the error message. If <use_fmt> is not null, builds a
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9374 * dynamic log-format rule instead of a static string. Parameter <dir> indicates
9375 * the direction of the rule, and equals 0 for request, non-zero for responses.
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9376 */
9377struct redirect_rule *http_parse_redirect_rule(const char *file, int linenum, struct proxy *curproxy,
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9378 const char **args, char **errmsg, int use_fmt, int dir)
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9379{
9380 struct redirect_rule *rule;
9381 int cur_arg;
9382 int type = REDIRECT_TYPE_NONE;
9383 int code = 302;
9384 const char *destination = NULL;
9385 const char *cookie = NULL;
9386 int cookie_set = 0;
9387 unsigned int flags = REDIRECT_FLAG_NONE;
9388 struct acl_cond *cond = NULL;
9389
9390 cur_arg = 0;
9391 while (*(args[cur_arg])) {
9392 if (strcmp(args[cur_arg], "location") == 0) {
9393 if (!*args[cur_arg + 1])
9394 goto missing_arg;
9395
9396 type = REDIRECT_TYPE_LOCATION;
9397 cur_arg++;
9398 destination = args[cur_arg];
9399 }
9400 else if (strcmp(args[cur_arg], "prefix") == 0) {
9401 if (!*args[cur_arg + 1])
9402 goto missing_arg;
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9403 type = REDIRECT_TYPE_PREFIX;
9404 cur_arg++;
9405 destination = args[cur_arg];
9406 }
9407 else if (strcmp(args[cur_arg], "scheme") == 0) {
9408 if (!*args[cur_arg + 1])
9409 goto missing_arg;
9410
9411 type = REDIRECT_TYPE_SCHEME;
9412 cur_arg++;
9413 destination = args[cur_arg];
9414 }
9415 else if (strcmp(args[cur_arg], "set-cookie") == 0) {
9416 if (!*args[cur_arg + 1])
9417 goto missing_arg;
9418
9419 cur_arg++;
9420 cookie = args[cur_arg];
9421 cookie_set = 1;
9422 }
9423 else if (strcmp(args[cur_arg], "clear-cookie") == 0) {
9424 if (!*args[cur_arg + 1])
9425 goto missing_arg;
9426
9427 cur_arg++;
9428 cookie = args[cur_arg];
9429 cookie_set = 0;
9430 }
9431 else if (strcmp(args[cur_arg], "code") == 0) {
9432 if (!*args[cur_arg + 1])
9433 goto missing_arg;
9434
9435 cur_arg++;
9436 code = atol(args[cur_arg]);
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9437 if (code < 301 || code > 308 || (code > 303 && code < 307)) {
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9438 memprintf(errmsg,
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9439 "'%s': unsupported HTTP code '%s' (must be one of 301, 302, 303, 307 or 308)",
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9440 args[cur_arg - 1], args[cur_arg]);
9441 return NULL;
9442 }
9443 }
9444 else if (!strcmp(args[cur_arg],"drop-query")) {
9445 flags |= REDIRECT_FLAG_DROP_QS;
9446 }
9447 else if (!strcmp(args[cur_arg],"append-slash")) {
9448 flags |= REDIRECT_FLAG_APPEND_SLASH;
9449 }
9450 else if (strcmp(args[cur_arg], "if") == 0 ||
9451 strcmp(args[cur_arg], "unless") == 0) {
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]9452 cond = build_acl_cond(file, linenum, &curproxy->acl, curproxy, (const char **)args + cur_arg, errmsg);
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9453 if (!cond) {
9454 memprintf(errmsg, "error in condition: %s", *errmsg);
9455 return NULL;
9456 }
9457 break;
9458 }
9459 else {
9460 memprintf(errmsg,
9461 "expects 'code', 'prefix', 'location', 'scheme', 'set-cookie', 'clear-cookie', 'drop-query' or 'append-slash' (was '%s')",
9462 args[cur_arg]);
9463 return NULL;
9464 }
9465 cur_arg++;
9466 }
9467
9468 if (type == REDIRECT_TYPE_NONE) {
9469 memprintf(errmsg, "redirection type expected ('prefix', 'location', or 'scheme')");
9470 return NULL;
9471 }
9472
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9473 if (dir && type != REDIRECT_TYPE_LOCATION) {
9474 memprintf(errmsg, "response only supports redirect type 'location'");
9475 return NULL;
9476 }
9477
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]9478 rule = calloc(1, sizeof(*rule));
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9479 rule->cond = cond;
Willy Tarreau60e08382013-12-03 00:48:45 +0100[diff] [blame]9480 LIST_INIT(&rule->rdr_fmt);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9481
9482 if (!use_fmt) {
9483 /* old-style static redirect rule */
9484 rule->rdr_str = strdup(destination);
9485 rule->rdr_len = strlen(destination);
9486 }
9487 else {
9488 /* log-format based redirect rule */
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9489
9490 /* Parse destination. Note that in the REDIRECT_TYPE_PREFIX case,
9491 * if prefix == "/", we don't want to add anything, otherwise it
9492 * makes it hard for the user to configure a self-redirection.
9493 */
Godbachd9722032014-12-18 15:44:58 +0800[diff] [blame]9494 curproxy->conf.args.ctx = ARGC_RDR;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9495 if (!(type == REDIRECT_TYPE_PREFIX && destination[0] == '/' && destination[1] == '\0')) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9496 if (!parse_logformat_string(destination, curproxy, &rule->rdr_fmt, LOG_OPT_HTTP,
9497 dir ? (curproxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRS_HDR : SMP_VAL_BE_HRS_HDR
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9498 : (curproxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9499 errmsg)) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9500 return NULL;
9501 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9502 free(curproxy->conf.lfs_file);
9503 curproxy->conf.lfs_file = strdup(curproxy->conf.args.file);
9504 curproxy->conf.lfs_line = curproxy->conf.args.line;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9505 }
9506 }
9507
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9508 if (cookie) {
9509 /* depending on cookie_set, either we want to set the cookie, or to clear it.
9510 * a clear consists in appending "; path=/; Max-Age=0;" at the end.
9511 */
9512 rule->cookie_len = strlen(cookie);
9513 if (cookie_set) {
9514 rule->cookie_str = malloc(rule->cookie_len + 10);
9515 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9516 memcpy(rule->cookie_str + rule->cookie_len, "; path=/;", 10);
9517 rule->cookie_len += 9;
9518 } else {
9519 rule->cookie_str = malloc(rule->cookie_len + 21);
9520 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9521 memcpy(rule->cookie_str + rule->cookie_len, "; path=/; Max-Age=0;", 21);
9522 rule->cookie_len += 20;
9523 }
9524 }
9525 rule->type = type;
9526 rule->code = code;
9527 rule->flags = flags;
9528 LIST_INIT(&rule->list);
9529 return rule;
9530
9531 missing_arg:
9532 memprintf(errmsg, "missing argument for '%s'", args[cur_arg]);
9533 return NULL;
9534}
9535
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9536/************************************************************************/
9537/* The code below is dedicated to ACL parsing and matching */
9538/************************************************************************/
9539
9540
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9541/* This function ensures that the prerequisites for an L7 fetch are ready,
9542 * which means that a request or response is ready. If some data is missing,
9543 * a parsing attempt is made. This is useful in TCP-based ACLs which are able
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9544 * to extract data from L7. If <req_vol> is non-null during a request prefetch,
9545 * another test is made to ensure the required information is not gone.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9546 *
9547 * The function returns :
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9548 * 0 with SMP_F_MAY_CHANGE in the sample flags if some data is missing to
9549 * decide whether or not an HTTP message is present ;
9550 * 0 if the requested data cannot be fetched or if it is certain that
9551 * we'll never have any HTTP message there ;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9552 * 1 if an HTTP message is ready
9553 */
James Rosewell91a41cb2015-09-18 17:11:16 +0100[diff] [blame]9554int smp_prefetch_http(struct proxy *px, struct stream *s, unsigned int opt,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9555 const struct arg *args, struct sample *smp, int req_vol)
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9556{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9557 struct http_txn *txn;
9558 struct http_msg *msg;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9559
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9560 /* Note: it is possible that <s> is NULL when called before stream
9561 * initialization (eg: tcp-request connection), so this function is the
9562 * one responsible for guarding against this case for all HTTP users.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9563 */
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9564 if (!s)
9565 return 0;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9566
Thierry FOURNIERed08d6a2015-09-24 08:40:18 +0200[diff] [blame]9567 if (!s->txn) {
9568 if (unlikely(!http_alloc_txn(s)))
9569 return 0; /* not enough memory */
9570 http_init_txn(s);
9571 }
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9572 txn = s->txn;
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9573 msg = &txn->req;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9574
9575 /* Check for a dependency on a request */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9576 smp->data.type = SMP_T_BOOL;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9577
Willy Tarreau32a6f2e2012-04-25 10:13:36 +0200[diff] [blame]9578 if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9579 /* If the buffer does not leave enough free space at the end,
9580 * we must first realign it.
9581 */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]9582 if (ci_head(&s->req) > b_orig(&s->req.buf) &&
9583 ci_head(&s->req) + ci_data(&s->req) > b_wrap(&s->req.buf) - global.tune.maxrewrite)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9584 channel_slow_realign(&s->req, trash.area);
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9585
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9586 if (unlikely(txn->req.msg_state < HTTP_MSG_BODY)) {
Willy Tarreau472b1ee2013-10-14 22:41:30 +0200[diff] [blame]9587 if (msg->msg_state == HTTP_MSG_ERROR)
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9588 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9589
9590 /* Try to decode HTTP request */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9591 if (likely(msg->next < ci_data(&s->req)))
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9592 http_msg_analyzer(msg, &txn->hdr_idx);
9593
9594 /* Still no valid request ? */
9595 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau3bf1b2b2012-08-27 20:46:07 +0200[diff] [blame]9596 if ((msg->msg_state == HTTP_MSG_ERROR) ||
Willy Tarreau23752332018-06-15 14:54:53 +0200[diff] [blame]9597 channel_full(&s->req, global.tune.maxrewrite)) {
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9598 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9599 }
9600 /* wait for final state */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9601 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9602 return 0;
9603 }
9604
9605 /* OK we just got a valid HTTP request. We have some minor
9606 * preparation to perform so that further checks can rely
9607 * on HTTP tests.
9608 */
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9609
9610 /* If the request was parsed but was too large, we must absolutely
9611 * return an error so that it is not processed. At the moment this
9612 * cannot happen, but if the parsers are to change in the future,
9613 * we want this check to be maintained.
9614 */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9615 if (unlikely(ci_head(&s->req) + ci_data(&s->req) >
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]9616 b_wrap(&s->req.buf) - global.tune.maxrewrite)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]9617 msg->err_state = msg->msg_state;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9618 msg->msg_state = HTTP_MSG_ERROR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9619 smp->data.u.sint = 1;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9620 return 1;
9621 }
9622
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9623 txn->meth = find_http_meth(ci_head(msg->chn), msg->sl.rq.m_l);
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9624 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]9625 s->flags |= SF_REDIRECTABLE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9626
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9627 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
9628 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9629 }
9630
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9631 if (req_vol && txn->rsp.msg_state != HTTP_MSG_RPBEFORE) {
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9632 return 0; /* data might have moved and indexes changed */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9633 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9634
9635 /* otherwise everything's ready for the request */
9636 }
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9637 else {
9638 /* Check for a dependency on a response */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9639 if (txn->rsp.msg_state < HTTP_MSG_BODY) {
9640 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9641 return 0;
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9642 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9643 }
9644
9645 /* everything's OK */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9646 smp->data.u.sint = 1;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9647 return 1;
9648}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9649
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9650/* 1. Check on METHOD
9651 * We use the pre-parsed method if it is known, and store its number as an
9652 * integer. If it is unknown, we use the pointer and the length.
9653 */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9654static int pat_parse_meth(const char *text, struct pattern *pattern, int mflags, char **err)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9655{
9656 int len, meth;
9657
Thierry FOURNIER580c32c2014-01-24 10:58:12 +0100[diff] [blame]9658 len = strlen(text);
9659 meth = find_http_meth(text, len);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9660
9661 pattern->val.i = meth;
9662 if (meth == HTTP_METH_OTHER) {
Willy Tarreau912c1192014-08-29 15:15:50 +0200[diff] [blame]9663 pattern->ptr.str = (char *)text;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9664 pattern->len = len;
9665 }
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9666 else {
9667 pattern->ptr.str = NULL;
9668 pattern->len = 0;
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9669 }
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9670 return 1;
9671}
9672
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9673/* This function fetches the method of current HTTP request and stores
9674 * it in the global pattern struct as a chunk. There are two possibilities :
9675 * - if the method is known (not HTTP_METH_OTHER), its identifier is stored
9676 * in <len> and <ptr> is NULL ;
9677 * - if the method is unknown (HTTP_METH_OTHER), <ptr> points to the text and
9678 * <len> to its length.
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]9679 * This is intended to be used with pat_match_meth() only.
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9680 */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9681static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9682smp_fetch_meth(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9683{
9684 int meth;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9685 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9686
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9687 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9688
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9689 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9690 meth = txn->meth;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9691 smp->data.type = SMP_T_METH;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9692 smp->data.u.meth.meth = meth;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9693 if (meth == HTTP_METH_OTHER) {
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9694 if (txn->rsp.msg_state != HTTP_MSG_RPBEFORE)
9695 /* ensure the indexes are not affected */
9696 return 0;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9697 smp->flags |= SMP_F_CONST;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9698 smp->data.u.meth.str.data = txn->req.sl.rq.m_l;
9699 smp->data.u.meth.str.area = ci_head(txn->req.chn);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9700 }
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9701 smp->flags |= SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9702 return 1;
9703}
9704
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9705/* See above how the method is stored in the global pattern */
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9706static struct pattern *pat_match_meth(struct sample *smp, struct pattern_expr *expr, int fill)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9707{
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9708 int icase;
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9709 struct pattern_list *lst;
9710 struct pattern *pattern;
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9711
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9712 list_for_each_entry(lst, &expr->patterns, list) {
9713 pattern = &lst->pat;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9714
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9715 /* well-known method */
9716 if (pattern->val.i != HTTP_METH_OTHER) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9717 if (smp->data.u.meth.meth == pattern->val.i)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9718 return pattern;
9719 else
9720 continue;
9721 }
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9722
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9723 /* Other method, we must compare the strings */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9724 if (pattern->len != smp->data.u.meth.str.data)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9725 continue;
9726
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9727 icase = expr->mflags & PAT_MF_IGNORE_CASE;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9728 if ((icase && strncasecmp(pattern->ptr.str, smp->data.u.meth.str.area, smp->data.u.meth.str.data) == 0) ||
9729 (!icase && strncmp(pattern->ptr.str, smp->data.u.meth.str.area, smp->data.u.meth.str.data) == 0))
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9730 return pattern;
9731 }
9732 return NULL;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9733}
9734
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9735static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9736smp_fetch_rqver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9737{
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9738 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9739 char *ptr;
9740 int len;
9741
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9742 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9743
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9744 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9745 len = txn->req.sl.rq.v_l;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9746 ptr = ci_head(txn->req.chn) + txn->req.sl.rq.v;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9747
9748 while ((len-- > 0) && (*ptr++ != '/'));
9749 if (len <= 0)
9750 return 0;
9751
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9752 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9753 smp->data.u.str.area = ptr;
9754 smp->data.u.str.data = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9755
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9756 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9757 return 1;
9758}
9759
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9760static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9761smp_fetch_stver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9762{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9763 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9764 char *ptr;
9765 int len;
9766
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9767 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9768
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9769 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9770 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9771 return 0;
9772
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9773 len = txn->rsp.sl.st.v_l;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9774 ptr = ci_head(txn->rsp.chn);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9775
9776 while ((len-- > 0) && (*ptr++ != '/'));
9777 if (len <= 0)
9778 return 0;
9779
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9780 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9781 smp->data.u.str.area = ptr;
9782 smp->data.u.str.data = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9783
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9784 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9785 return 1;
9786}
9787
9788/* 3. Check on Status Code. We manipulate integers here. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9789static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9790smp_fetch_stcode(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9791{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9792 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9793 char *ptr;
9794 int len;
9795
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9796 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9797
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9798 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9799 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9800 return 0;
9801
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9802 len = txn->rsp.sl.st.c_l;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9803 ptr = ci_head(txn->rsp.chn) + txn->rsp.sl.st.c;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9804
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9805 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9806 smp->data.u.sint = __strl2ui(ptr, len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9807 smp->flags = SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9808 return 1;
9809}
9810
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9811static int
9812smp_fetch_uniqueid(const struct arg *args, struct sample *smp, const char *kw, void *private)
9813{
9814 if (LIST_ISEMPTY(&smp->sess->fe->format_unique_id))
9815 return 0;
9816
9817 if (!smp->strm->unique_id) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]9818 if ((smp->strm->unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9819 return 0;
9820 smp->strm->unique_id[0] = '\0';
9821 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9822 smp->data.u.str.data = build_logline(smp->strm, smp->strm->unique_id,
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9823 UNIQUEID_LEN, &smp->sess->fe->format_unique_id);
9824
9825 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9826 smp->data.u.str.area = smp->strm->unique_id;
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9827 smp->flags = SMP_F_CONST;
9828 return 1;
9829}
9830
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]9831/* Returns a string block containing all headers including the
9832 * empty line wich separes headers from the body. This is useful
9833 * form some headers analysis.
9834 */
9835static int
9836smp_fetch_hdrs(const struct arg *args, struct sample *smp, const char *kw, void *private)
9837{
9838 struct http_msg *msg;
9839 struct hdr_idx *idx;
9840 struct http_txn *txn;
9841
9842 CHECK_HTTP_MESSAGE_FIRST();
9843
9844 txn = smp->strm->txn;
9845 idx = &txn->hdr_idx;
9846 msg = &txn->req;
9847
9848 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9849 smp->data.u.str.area = ci_head(msg->chn) + hdr_idx_first_pos(idx);
9850 smp->data.u.str.data = msg->eoh - hdr_idx_first_pos(idx) + 1 +
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9851 (ci_head(msg->chn)[msg->eoh] == '\r');
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]9852
9853 return 1;
9854}
9855
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9856/* Returns the header request in a length/value encoded format.
9857 * This is useful for exchanges with the SPOE.
9858 *
9859 * A "length value" is a multibyte code encoding numbers. It uses the
9860 * SPOE format. The encoding is the following:
9861 *
9862 * Each couple "header name" / "header value" is composed
9863 * like this:
9864 * "length value" "header name bytes"
9865 * "length value" "header value bytes"
9866 * When the last header is reached, the header name and the header
9867 * value are empty. Their length are 0
9868 */
9869static int
9870smp_fetch_hdrs_bin(const struct arg *args, struct sample *smp, const char *kw, void *private)
9871{
9872 struct http_msg *msg;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]9873 struct buffer *temp;
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9874 struct hdr_idx *idx;
9875 const char *cur_ptr, *cur_next, *p;
9876 int old_idx, cur_idx;
9877 struct hdr_idx_elem *cur_hdr;
9878 const char *hn, *hv;
9879 int hnl, hvl;
9880 int ret;
9881 struct http_txn *txn;
9882 char *buf;
9883 char *end;
9884
9885 CHECK_HTTP_MESSAGE_FIRST();
9886
9887 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9888 buf = temp->area;
9889 end = temp->area + temp->size;
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9890
9891 txn = smp->strm->txn;
9892 idx = &txn->hdr_idx;
9893 msg = &txn->req;
9894
9895 /* Build array of headers. */
9896 old_idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9897 cur_next = ci_head(msg->chn) + hdr_idx_first_pos(idx);
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9898 while (1) {
9899 cur_idx = idx->v[old_idx].next;
9900 if (!cur_idx)
9901 break;
9902 old_idx = cur_idx;
9903
9904 cur_hdr = &idx->v[cur_idx];
9905 cur_ptr = cur_next;
9906 cur_next = cur_ptr + cur_hdr->len + cur_hdr->cr + 1;
9907
9908 /* Now we have one full header at cur_ptr of len cur_hdr->len,
9909 * and the next header starts at cur_next. We'll check
9910 * this header in the list as well as against the default
9911 * rule.
9912 */
9913
9914 /* look for ': *'. */
9915 hn = cur_ptr;
9916 for (p = cur_ptr; p < cur_ptr + cur_hdr->len && *p != ':'; p++);
9917 if (p >= cur_ptr+cur_hdr->len)
9918 continue;
9919 hnl = p - hn;
9920 p++;
9921 while (p < cur_ptr + cur_hdr->len && (*p == ' ' || *p == '\t'))
9922 p++;
9923 if (p >= cur_ptr + cur_hdr->len)
9924 continue;
9925 hv = p;
9926 hvl = cur_ptr + cur_hdr->len-p;
9927
9928 /* encode the header name. */
9929 ret = encode_varint(hnl, &buf, end);
9930 if (ret == -1)
9931 return 0;
9932 if (buf + hnl > end)
9933 return 0;
9934 memcpy(buf, hn, hnl);
9935 buf += hnl;
9936
9937 /* encode and copy the value. */
9938 ret = encode_varint(hvl, &buf, end);
9939 if (ret == -1)
9940 return 0;
9941 if (buf + hvl > end)
9942 return 0;
9943 memcpy(buf, hv, hvl);
9944 buf += hvl;
9945 }
9946
9947 /* encode the end of the header list with empty
9948 * header name and header value.
9949 */
9950 ret = encode_varint(0, &buf, end);
9951 if (ret == -1)
9952 return 0;
9953 ret = encode_varint(0, &buf, end);
9954 if (ret == -1)
9955 return 0;
9956
9957 /* Initialise sample data which will be filled. */
9958 smp->data.type = SMP_T_BIN;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9959 smp->data.u.str.area = temp->area;
9960 smp->data.u.str.data = buf - temp->area;
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9961 smp->data.u.str.size = temp->size;
9962
9963 return 1;
9964}
9965
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9966/* returns the longest available part of the body. This requires that the body
9967 * has been waited for using http-buffer-request.
9968 */
9969static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9970smp_fetch_body(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9971{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9972 struct http_msg *msg;
9973 unsigned long len;
9974 unsigned long block1;
9975 char *body;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]9976 struct buffer *temp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9977
9978 CHECK_HTTP_MESSAGE_FIRST();
9979
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9980 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9981 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9982 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9983 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9984
9985 len = http_body_bytes(msg);
Willy Tarreau188e2302018-06-15 11:11:53 +0200[diff] [blame]9986 body = c_ptr(msg->chn, -http_data_rewind(msg));
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9987
9988 block1 = len;
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]9989 if (block1 > b_wrap(&msg->chn->buf) - body)
9990 block1 = b_wrap(&msg->chn->buf) - body;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9991
9992 if (block1 == len) {
9993 /* buffer is not wrapped (or empty) */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9994 smp->data.type = SMP_T_BIN;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9995 smp->data.u.str.area = body;
9996 smp->data.u.str.data = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9997 smp->flags = SMP_F_VOL_TEST | SMP_F_CONST;
9998 }
9999 else {
10000 /* buffer is wrapped, we need to defragment it */
10001 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10002 memcpy(temp->area, body, block1);
10003 memcpy(temp->area + block1, b_orig(&msg->chn->buf),
10004 len - block1);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10005 smp->data.type = SMP_T_BIN;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10006 smp->data.u.str.area = temp->area;
10007 smp->data.u.str.data = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10008 smp->flags = SMP_F_VOL_TEST;
10009 }
10010 return 1;
10011}
10012
10013
10014/* returns the available length of the body. This requires that the body
10015 * has been waited for using http-buffer-request.
10016 */
10017static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10018smp_fetch_body_len(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10019{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10020 struct http_msg *msg;
10021
10022 CHECK_HTTP_MESSAGE_FIRST();
10023
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10024 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10025 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10026 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10027 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10028
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10029 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10030 smp->data.u.sint = http_body_bytes(msg);
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10031
10032 smp->flags = SMP_F_VOL_TEST;
10033 return 1;
10034}
10035
10036
10037/* returns the advertised length of the body, or the advertised size of the
10038 * chunks available in the buffer. This requires that the body has been waited
10039 * for using http-buffer-request.
10040 */
10041static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10042smp_fetch_body_size(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10043{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10044 struct http_msg *msg;
10045
10046 CHECK_HTTP_MESSAGE_FIRST();
10047
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10048 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10049 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10050 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10051 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10052
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10053 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10054 smp->data.u.sint = msg->body_len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10055
10056 smp->flags = SMP_F_VOL_TEST;
10057 return 1;
10058}
10059
10060
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10061/* 4. Check on URL/URI. A pointer to the URI is stored. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]10062static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10063smp_fetch_url(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10064{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10065 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10066
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10067 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10068
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10069 txn = smp->strm->txn;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10070 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10071 smp->data.u.str.data = txn->req.sl.rq.u_l;
10072 smp->data.u.str.area = ci_head(txn->req.chn) + txn->req.sl.rq.u;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10073 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10074 return 1;
10075}
10076
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10077static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10078smp_fetch_url_ip(const struct arg *args, struct sample *smp, const char *kw, void *private)
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10079{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10080 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]10081 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10082
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10083 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10084
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10085 txn = smp->strm->txn;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10086 url2sa(ci_head(txn->req.chn) + txn->req.sl.rq.u, txn->req.sl.rq.u_l, &addr, NULL);
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]10087 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
Willy Tarreauf4362b32011-12-16 17:49:52 +0100[diff] [blame]10088 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10089
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10090 smp->data.type = SMP_T_IPV4;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10091 smp->data.u.ipv4 = ((struct sockaddr_in *)&addr)->sin_addr;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10092 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10093 return 1;
10094}
10095
10096static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10097smp_fetch_url_port(const struct arg *args, struct sample *smp, const char *kw, void *private)
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10098{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10099 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]10100 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10101
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10102 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10103
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10104 txn = smp->strm->txn;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10105 url2sa(ci_head(txn->req.chn) + txn->req.sl.rq.u, txn->req.sl.rq.u_l, &addr, NULL);
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]10106 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
10107 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10108
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10109 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10110 smp->data.u.sint = ntohs(((struct sockaddr_in *)&addr)->sin_port);
Willy Tarreau21e5b0e2012-04-23 19:25:44 +0200[diff] [blame]10111 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10112 return 1;
10113}
10114
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10115/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
10116 * Accepts an optional argument of type string containing the header field name,
10117 * and an optional argument of type signed or unsigned integer to request an
10118 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10119 * headers are considered from the first one. It does not stop on commas and
10120 * returns full lines instead (useful for User-Agent or Date for example).
10121 */
10122static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10123smp_fetch_fhdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10124{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10125 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10126 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10127 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10128 int occ = 0;
10129 const char *name_str = NULL;
10130 int name_len = 0;
10131
10132 if (!ctx) {
10133 /* first call */
10134 ctx = &static_hdr_ctx;
10135 ctx->idx = 0;
10136 smp->ctx.a[0] = ctx;
10137 }
10138
10139 if (args) {
10140 if (args[0].type != ARGT_STR)
10141 return 0;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10142 name_str = args[0].data.str.area;
10143 name_len = args[0].data.str.data;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10144
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10145 if (args[1].type == ARGT_SINT)
10146 occ = args[1].data.sint;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10147 }
10148
10149 CHECK_HTTP_MESSAGE_FIRST();
10150
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10151 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10152 msg = ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) ? &smp->strm->txn->req : &smp->strm->txn->rsp;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10153
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10154 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
10155 /* search for header from the beginning */
10156 ctx->idx = 0;
10157
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10158 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10159 /* no explicit occurrence and single fetch => last header by default */
10160 occ = -1;
10161
10162 if (!occ)
10163 /* prepare to report multiple occurrences for ACL fetches */
10164 smp->flags |= SMP_F_NOT_LAST;
10165
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10166 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10167 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10168 if (http_get_fhdr(msg, name_str, name_len, idx, occ, ctx, &smp->data.u.str.area, &smp->data.u.str.data))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10169 return 1;
10170
10171 smp->flags &= ~SMP_F_NOT_LAST;
10172 return 0;
10173}
10174
10175/* 6. Check on HTTP header count. The number of occurrences is returned.
10176 * Accepts exactly 1 argument of type string. It does not stop on commas and
10177 * returns full lines instead (useful for User-Agent or Date for example).
10178 */
10179static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10180smp_fetch_fhdr_cnt(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10181{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10182 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10183 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10184 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10185 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10186 const char *name = NULL;
10187 int len = 0;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10188
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10189 if (args && args->type == ARGT_STR) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10190 name = args->data.str.area;
10191 len = args->data.str.data;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10192 }
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10193
10194 CHECK_HTTP_MESSAGE_FIRST();
10195
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10196 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10197 msg = ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) ? &smp->strm->txn->req : &smp->strm->txn->rsp;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10198
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10199 ctx.idx = 0;
10200 cnt = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10201 while (http_find_full_header2(name, len, ci_head(msg->chn), idx, &ctx))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10202 cnt++;
10203
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10204 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10205 smp->data.u.sint = cnt;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10206 smp->flags = SMP_F_VOL_HDR;
10207 return 1;
10208}
10209
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10210static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10211smp_fetch_hdr_names(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10212{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10213 struct hdr_idx *idx;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10214 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10215 const struct http_msg *msg;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]10216 struct buffer *temp;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10217 char del = ',';
10218
10219 if (args && args->type == ARGT_STR)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10220 del = *args[0].data.str.area;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10221
10222 CHECK_HTTP_MESSAGE_FIRST();
10223
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10224 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10225 msg = ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) ? &smp->strm->txn->req : &smp->strm->txn->rsp;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10226
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10227 temp = get_trash_chunk();
10228
10229 ctx.idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10230 while (http_find_next_header(ci_head(msg->chn), idx, &ctx)) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10231 if (temp->data)
10232 temp->area[temp->data++] = del;
10233 memcpy(temp->area + temp->data, ctx.line, ctx.del);
10234 temp->data += ctx.del;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10235 }
10236
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10237 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10238 smp->data.u.str.area = temp->area;
10239 smp->data.u.str.data = temp->data;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10240 smp->flags = SMP_F_VOL_HDR;
10241 return 1;
10242}
10243
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10244/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
10245 * Accepts an optional argument of type string containing the header field name,
10246 * and an optional argument of type signed or unsigned integer to request an
10247 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10248 * headers are considered from the first one.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10249 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10250static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10251smp_fetch_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10252{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10253 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10254 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10255 const struct http_msg *msg;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10256 int occ = 0;
10257 const char *name_str = NULL;
10258 int name_len = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10259
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10260 if (!ctx) {
10261 /* first call */
10262 ctx = &static_hdr_ctx;
10263 ctx->idx = 0;
Willy Tarreauffb6f082013-04-02 23:16:53 +0200[diff] [blame]10264 smp->ctx.a[0] = ctx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10265 }
10266
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10267 if (args) {
10268 if (args[0].type != ARGT_STR)
10269 return 0;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10270 name_str = args[0].data.str.area;
10271 name_len = args[0].data.str.data;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10272
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10273 if (args[1].type == ARGT_SINT)
10274 occ = args[1].data.sint;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10275 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10276
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10277 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10278
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10279 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10280 msg = ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) ? &smp->strm->txn->req : &smp->strm->txn->rsp;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10281
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10282 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10283 /* search for header from the beginning */
10284 ctx->idx = 0;
10285
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10286 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10287 /* no explicit occurrence and single fetch => last header by default */
10288 occ = -1;
10289
10290 if (!occ)
10291 /* prepare to report multiple occurrences for ACL fetches */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10292 smp->flags |= SMP_F_NOT_LAST;
Willy Tarreau664092c2011-12-16 19:11:42 +0100[diff] [blame]10293
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10294 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10295 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10296 if (http_get_hdr(msg, name_str, name_len, idx, occ, ctx, &smp->data.u.str.area, &smp->data.u.str.data))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10297 return 1;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10298
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10299 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10300 return 0;
10301}
10302
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10303/* 6. Check on HTTP header count. The number of occurrences is returned.
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10304 * Accepts exactly 1 argument of type string.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10305 */
10306static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10307smp_fetch_hdr_cnt(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10308{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10309 struct hdr_idx *idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10310 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10311 const struct http_msg *msg;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10312 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10313 const char *name = NULL;
10314 int len = 0;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10315
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10316 if (args && args->type == ARGT_STR) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10317 name = args->data.str.area;
10318 len = args->data.str.data;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10319 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10320
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10321 CHECK_HTTP_MESSAGE_FIRST();
10322
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10323 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10324 msg = ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) ? &smp->strm->txn->req : &smp->strm->txn->rsp;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10325
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10326 ctx.idx = 0;
10327 cnt = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10328 while (http_find_header2(name, len, ci_head(msg->chn), idx, &ctx))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10329 cnt++;
10330
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10331 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10332 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10333 smp->flags = SMP_F_VOL_HDR;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10334 return 1;
10335}
10336
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10337/* Fetch an HTTP header's integer value. The integer value is returned. It
10338 * takes a mandatory argument of type string and an optional one of type int
10339 * to designate a specific occurrence. It returns an unsigned integer, which
10340 * may or may not be appropriate for everything.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10341 */
10342static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10343smp_fetch_hdr_val(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10344{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10345 int ret = smp_fetch_hdr(args, smp, kw, private);
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10346
Willy Tarreauf853c462012-04-23 18:53:56 +0200[diff] [blame]10347 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10348 smp->data.type = SMP_T_SINT;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10349 smp->data.u.sint = strl2ic(smp->data.u.str.area,
10350 smp->data.u.str.data);
Willy Tarreauf853c462012-04-23 18:53:56 +0200[diff] [blame]10351 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10352
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10353 return ret;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10354}
10355
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10356/* Fetch an HTTP header's IP value. takes a mandatory argument of type string
10357 * and an optional one of type int to designate a specific occurrence.
10358 * It returns an IPv4 or IPv6 address.
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10359 */
10360static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10361smp_fetch_hdr_ip(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10362{
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10363 int ret;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10364
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10365 while ((ret = smp_fetch_hdr(args, smp, kw, private)) > 0) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10366 if (url2ipv4((char *) smp->data.u.str.area, &smp->data.u.ipv4)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10367 smp->data.type = SMP_T_IPV4;
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10368 break;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10369 } else {
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]10370 struct buffer *temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10371 if (smp->data.u.str.data < temp->size - 1) {
10372 memcpy(temp->area, smp->data.u.str.area,
10373 smp->data.u.str.data);
10374 temp->area[smp->data.u.str.data] = '\0';
10375 if (inet_pton(AF_INET6, temp->area, &smp->data.u.ipv6)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10376 smp->data.type = SMP_T_IPV6;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10377 break;
10378 }
10379 }
10380 }
10381
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10382 /* if the header doesn't match an IP address, fetch next one */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10383 if (!(smp->flags & SMP_F_NOT_LAST))
10384 return 0;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10385 }
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10386 return ret;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10387}
10388
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10389/* 8. Check on URI PATH. A pointer to the PATH is stored. The path starts at
10390 * the first '/' after the possible hostname, and ends before the possible '?'.
10391 */
10392static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10393smp_fetch_path(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10394{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10395 struct http_txn *txn;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10396 char *ptr, *end;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10397
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10398 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10399
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10400 txn = smp->strm->txn;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10401 end = ci_head(txn->req.chn) + txn->req.sl.rq.u + txn->req.sl.rq.u_l;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]10402 ptr = http_get_path(txn);
10403 if (!ptr)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10404 return 0;
10405
10406 /* OK, we got the '/' ! */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10407 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10408 smp->data.u.str.area = ptr;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10409
10410 while (ptr < end && *ptr != '?')
10411 ptr++;
10412
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10413 smp->data.u.str.data = ptr - smp->data.u.str.area;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10414 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10415 return 1;
10416}
10417
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10418/* This produces a concatenation of the first occurrence of the Host header
10419 * followed by the path component if it begins with a slash ('/'). This means
10420 * that '*' will not be added, resulting in exactly the first Host entry.
10421 * If no Host header is found, then the path is returned as-is. The returned
10422 * value is stored in the trash so it does not need to be marked constant.
Willy Tarreaub169eba2013-12-16 15:14:43 +0100[diff] [blame]10423 * The returned sample is of type string.
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10424 */
10425static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10426smp_fetch_base(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10427{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10428 struct http_txn *txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10429 char *ptr, *end, *beg;
10430 struct hdr_ctx ctx;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]10431 struct buffer *temp;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10432
10433 CHECK_HTTP_MESSAGE_FIRST();
10434
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10435 txn = smp->strm->txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10436 ctx.idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10437 if (!http_find_header2("Host", 4, ci_head(txn->req.chn), &txn->hdr_idx, &ctx) || !ctx.vlen)
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10438 return smp_fetch_path(args, smp, kw, private);
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10439
10440 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
Willy Tarreau3caf2af2014-06-24 17:27:02 +0200[diff] [blame]10441 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10442 memcpy(temp->area, ctx.line + ctx.val, ctx.vlen);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10443 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10444 smp->data.u.str.area = temp->area;
10445 smp->data.u.str.data = ctx.vlen;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10446
10447 /* now retrieve the path */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10448 end = ci_head(txn->req.chn) + txn->req.sl.rq.u + txn->req.sl.rq.u_l;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10449 beg = http_get_path(txn);
10450 if (!beg)
10451 beg = end;
10452
10453 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10454
10455 if (beg < ptr && *beg == '/') {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10456 memcpy(smp->data.u.str.area + smp->data.u.str.data, beg,
10457 ptr - beg);
10458 smp->data.u.str.data += ptr - beg;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10459 }
10460
10461 smp->flags = SMP_F_VOL_1ST;
10462 return 1;
10463}
10464
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10465/* This produces a 32-bit hash of the concatenation of the first occurrence of
10466 * the Host header followed by the path component if it begins with a slash ('/').
10467 * This means that '*' will not be added, resulting in exactly the first Host
10468 * entry. If no Host header is found, then the path is used. The resulting value
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]10469 * is hashed using the path hash followed by a full avalanche hash and provides a
10470 * 32-bit integer value. This fetch is useful for tracking per-path activity on
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10471 * high-traffic sites without having to store whole paths.
10472 */
Thierry FOURNIER055b9d52014-07-15 16:11:07 +0200[diff] [blame]10473int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10474smp_fetch_base32(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10475{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10476 struct http_txn *txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10477 struct hdr_ctx ctx;
10478 unsigned int hash = 0;
10479 char *ptr, *beg, *end;
10480 int len;
10481
10482 CHECK_HTTP_MESSAGE_FIRST();
10483
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10484 txn = smp->strm->txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10485 ctx.idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10486 if (http_find_header2("Host", 4, ci_head(txn->req.chn), &txn->hdr_idx, &ctx)) {
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10487 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
10488 ptr = ctx.line + ctx.val;
10489 len = ctx.vlen;
10490 while (len--)
10491 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
10492 }
10493
10494 /* now retrieve the path */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10495 end = ci_head(txn->req.chn) + txn->req.sl.rq.u + txn->req.sl.rq.u_l;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10496 beg = http_get_path(txn);
10497 if (!beg)
10498 beg = end;
10499
10500 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10501
10502 if (beg < ptr && *beg == '/') {
10503 while (beg < ptr)
10504 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
10505 }
10506 hash = full_hash(hash);
10507
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10508 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10509 smp->data.u.sint = hash;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10510 smp->flags = SMP_F_VOL_1ST;
10511 return 1;
10512}
10513
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10514/* This concatenates the source address with the 32-bit hash of the Host and
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]10515 * path as returned by smp_fetch_base32(). The idea is to have per-source and
10516 * per-path counters. The result is a binary block from 8 to 20 bytes depending
10517 * on the source address length. The path hash is stored before the address so
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10518 * that in environments where IPv6 is insignificant, truncating the output to
10519 * 8 bytes would still work.
10520 */
10521static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10522smp_fetch_base32_src(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10523{
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]10524 struct buffer *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10525 struct connection *cli_conn = objt_conn(smp->sess->origin);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10526
10527 if (!cli_conn)
10528 return 0;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10529
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10530 if (!smp_fetch_base32(args, smp, kw, private))
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10531 return 0;
10532
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10533 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10534 *(unsigned int *) temp->area = htonl(smp->data.u.sint);
10535 temp->data += sizeof(unsigned int);
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10536
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10537 switch (cli_conn->addr.from.ss_family) {
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10538 case AF_INET:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10539 memcpy(temp->area + temp->data,
10540 &((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr,
10541 4);
10542 temp->data += 4;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10543 break;
10544 case AF_INET6:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10545 memcpy(temp->area + temp->data,
10546 &((struct sockaddr_in6 *)&cli_conn->addr.from)->sin6_addr,
10547 16);
10548 temp->data += 16;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10549 break;
10550 default:
10551 return 0;
10552 }
10553
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10554 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10555 smp->data.type = SMP_T_BIN;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10556 return 1;
10557}
10558
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10559/* Extracts the query string, which comes after the question mark '?'. If no
10560 * question mark is found, nothing is returned. Otherwise it returns a sample
10561 * of type string carrying the whole query string.
10562 */
10563static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10564smp_fetch_query(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10565{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10566 struct http_txn *txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10567 char *ptr, *end;
10568
10569 CHECK_HTTP_MESSAGE_FIRST();
10570
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10571 txn = smp->strm->txn;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10572 ptr = ci_head(txn->req.chn) + txn->req.sl.rq.u;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10573 end = ptr + txn->req.sl.rq.u_l;
10574
10575 /* look up the '?' */
10576 do {
10577 if (ptr == end)
10578 return 0;
10579 } while (*ptr++ != '?');
10580
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10581 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10582 smp->data.u.str.area = ptr;
10583 smp->data.u.str.data = end - ptr;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10584 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
10585 return 1;
10586}
10587
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10588static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10589smp_fetch_proto_http(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10590{
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10591 /* Note: hdr_idx.v cannot be NULL in this ACL because the ACL is tagged
10592 * as a layer7 ACL, which involves automatic allocation of hdr_idx.
10593 */
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10594
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10595 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10596
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10597 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10598 smp->data.u.sint = 1;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10599 return 1;
10600}
10601
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10602/* return a valid test if the current request is the first one on the connection */
10603static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10604smp_fetch_http_first_req(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10605{
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10606 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10607 smp->data.u.sint = !(smp->strm->txn->flags & TX_NOT_FIRST);
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10608 return 1;
10609}
10610
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10611/* Accepts exactly 1 argument of type userlist */
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10612static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10613smp_fetch_http_auth(const struct arg *args, struct sample *smp, const char *kw, void *private)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10614{
10615
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10616 if (!args || args->type != ARGT_USR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10617 return 0;
10618
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10619 CHECK_HTTP_MESSAGE_FIRST();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10620
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10621 if (!get_http_auth(smp->strm))
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10622 return 0;
10623
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10624 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10625 smp->data.u.sint = check_user(args->data.usr, smp->strm->txn->auth.user,
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10626 smp->strm->txn->auth.pass);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10627 return 1;
10628}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10629
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10630/* Accepts exactly 1 argument of type userlist */
10631static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10632smp_fetch_http_auth_grp(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10633{
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10634 if (!args || args->type != ARGT_USR)
10635 return 0;
10636
10637 CHECK_HTTP_MESSAGE_FIRST();
10638
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10639 if (!get_http_auth(smp->strm))
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10640 return 0;
10641
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10642 /* if the user does not belong to the userlist or has a wrong password,
10643 * report that it unconditionally does not match. Otherwise we return
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10644 * a string containing the username.
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10645 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10646 if (!check_user(args->data.usr, smp->strm->txn->auth.user,
10647 smp->strm->txn->auth.pass))
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10648 return 0;
10649
10650 /* pat_match_auth() will need the user list */
10651 smp->ctx.a[0] = args->data.usr;
10652
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10653 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10654 smp->flags = SMP_F_CONST;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10655 smp->data.u.str.area = smp->strm->txn->auth.user;
10656 smp->data.u.str.data = strlen(smp->strm->txn->auth.user);
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10657
10658 return 1;
10659}
10660
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10661/* Try to find the next occurrence of a cookie name in a cookie header value.
10662 * The lookup begins at <hdr>. The pointer and size of the next occurrence of
10663 * the cookie value is returned into *value and *value_l, and the function
10664 * returns a pointer to the next pointer to search from if the value was found.
10665 * Otherwise if the cookie was not found, NULL is returned and neither value
10666 * nor value_l are touched. The input <hdr> string should first point to the
10667 * header's value, and the <hdr_end> pointer must point to the first character
10668 * not part of the value. <list> must be non-zero if value may represent a list
10669 * of values (cookie headers). This makes it faster to abort parsing when no
10670 * list is expected.
10671 */
David Carlier4686f792015-09-25 14:10:50 +0100[diff] [blame]10672char *
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10673extract_cookie_value(char *hdr, const char *hdr_end,
10674 char *cookie_name, size_t cookie_name_l, int list,
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10675 char **value, size_t *value_l)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10676{
10677 char *equal, *att_end, *att_beg, *val_beg, *val_end;
10678 char *next;
10679
10680 /* we search at least a cookie name followed by an equal, and more
10681 * generally something like this :
10682 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
10683 */
10684 for (att_beg = hdr; att_beg + cookie_name_l + 1 < hdr_end; att_beg = next + 1) {
10685 /* Iterate through all cookies on this line */
10686
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10687 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10688 att_beg++;
10689
10690 /* find att_end : this is the first character after the last non
10691 * space before the equal. It may be equal to hdr_end.
10692 */
10693 equal = att_end = att_beg;
10694
10695 while (equal < hdr_end) {
10696 if (*equal == '=' || *equal == ';' || (list && *equal == ','))
10697 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10698 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10699 continue;
10700 att_end = equal;
10701 }
10702
10703 /* here, <equal> points to '=', a delimitor or the end. <att_end>
10704 * is between <att_beg> and <equal>, both may be identical.
10705 */
10706
10707 /* look for end of cookie if there is an equal sign */
10708 if (equal < hdr_end && *equal == '=') {
10709 /* look for the beginning of the value */
10710 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10711 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10712 val_beg++;
10713
10714 /* find the end of the value, respecting quotes */
10715 next = find_cookie_value_end(val_beg, hdr_end);
10716
10717 /* make val_end point to the first white space or delimitor after the value */
10718 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10719 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10720 val_end--;
10721 } else {
10722 val_beg = val_end = next = equal;
10723 }
10724
10725 /* We have nothing to do with attributes beginning with '$'. However,
10726 * they will automatically be removed if a header before them is removed,
10727 * since they're supposed to be linked together.
10728 */
10729 if (*att_beg == '$')
10730 continue;
10731
10732 /* Ignore cookies with no equal sign */
10733 if (equal == next)
10734 continue;
10735
10736 /* Now we have the cookie name between att_beg and att_end, and
10737 * its value between val_beg and val_end.
10738 */
10739
10740 if (att_end - att_beg == cookie_name_l &&
10741 memcmp(att_beg, cookie_name, cookie_name_l) == 0) {
10742 /* let's return this value and indicate where to go on from */
10743 *value = val_beg;
10744 *value_l = val_end - val_beg;
10745 return next + 1;
10746 }
10747
10748 /* Set-Cookie headers only have the name in the first attr=value part */
10749 if (!list)
10750 break;
10751 }
10752
10753 return NULL;
10754}
10755
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10756/* Fetch a captured HTTP request header. The index is the position of
10757 * the "capture" option in the configuration file
10758 */
10759static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10760smp_fetch_capture_header_req(const struct arg *args, struct sample *smp, const char *kw, void *private)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10761{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10762 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10763 int idx;
10764
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10765 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10766 return 0;
10767
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10768 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10769
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10770 if (idx > (fe->nb_req_cap - 1) || smp->strm->req_cap == NULL || smp->strm->req_cap[idx] == NULL)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10771 return 0;
10772
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10773 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10774 smp->flags |= SMP_F_CONST;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10775 smp->data.u.str.area = smp->strm->req_cap[idx];
10776 smp->data.u.str.data = strlen(smp->strm->req_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10777
10778 return 1;
10779}
10780
10781/* Fetch a captured HTTP response header. The index is the position of
10782 * the "capture" option in the configuration file
10783 */
10784static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10785smp_fetch_capture_header_res(const struct arg *args, struct sample *smp, const char *kw, void *private)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10786{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10787 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10788 int idx;
10789
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10790 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10791 return 0;
10792
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10793 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10794
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10795 if (idx > (fe->nb_rsp_cap - 1) || smp->strm->res_cap == NULL || smp->strm->res_cap[idx] == NULL)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10796 return 0;
10797
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10798 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10799 smp->flags |= SMP_F_CONST;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10800 smp->data.u.str.area = smp->strm->res_cap[idx];
10801 smp->data.u.str.data = strlen(smp->strm->res_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10802
10803 return 1;
10804}
10805
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10806/* Extracts the METHOD in the HTTP request, the txn->uri should be filled before the call */
10807static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10808smp_fetch_capture_req_method(const struct arg *args, struct sample *smp, const char *kw, void *private)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10809{
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]10810 struct buffer *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10811 struct http_txn *txn = smp->strm->txn;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10812 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10813
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10814 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10815 return 0;
10816
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10817 ptr = txn->uri;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10818
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10819 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10820 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10821
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10822 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10823 temp->area = txn->uri;
10824 temp->data = ptr - txn->uri;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10825 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10826 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10827 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10828
10829 return 1;
10830
10831}
10832
10833/* Extracts the path in the HTTP request, the txn->uri should be filled before the call */
10834static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10835smp_fetch_capture_req_uri(const struct arg *args, struct sample *smp, const char *kw, void *private)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10836{
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]10837 struct buffer *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10838 struct http_txn *txn = smp->strm->txn;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10839 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10840
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10841 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10842 return 0;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10843
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10844 ptr = txn->uri;
10845
10846 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10847 ptr++;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10848
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10849 if (!*ptr)
10850 return 0;
10851
10852 ptr++; /* skip the space */
10853
10854 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10855 ptr = temp->area = http_get_path_from_string(ptr);
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10856 if (!ptr)
10857 return 0;
10858 while (*ptr != ' ' && *ptr != '\0') /* find space after URI */
10859 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10860
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10861 smp->data.u.str = *temp;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10862 smp->data.u.str.data = ptr - temp->area;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10863 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10864 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10865
10866 return 1;
10867}
10868
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10869/* Retrieves the HTTP version from the request (either 1.0 or 1.1) and emits it
10870 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10871 */
10872static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10873smp_fetch_capture_req_ver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10874{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10875 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10876
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10877 if (!txn || txn->req.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10878 return 0;
10879
10880 if (txn->req.flags & HTTP_MSGF_VER_11)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10881 smp->data.u.str.area = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10882 else
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10883 smp->data.u.str.area = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10884
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10885 smp->data.u.str.data = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10886 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10887 smp->flags = SMP_F_CONST;
10888 return 1;
10889
10890}
10891
10892/* Retrieves the HTTP version from the response (either 1.0 or 1.1) and emits it
10893 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10894 */
10895static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10896smp_fetch_capture_res_ver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10897{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10898 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10899
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10900 if (!txn || txn->rsp.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10901 return 0;
10902
10903 if (txn->rsp.flags & HTTP_MSGF_VER_11)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10904 smp->data.u.str.area = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10905 else
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10906 smp->data.u.str.area = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10907
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10908 smp->data.u.str.data = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10909 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10910 smp->flags = SMP_F_CONST;
10911 return 1;
10912
10913}
10914
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10915
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10916/* Iterate over all cookies present in a message. The context is stored in
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10917 * smp->ctx.a[0] for the in-header position, smp->ctx.a[1] for the
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10918 * end-of-header-value, and smp->ctx.a[2] for the hdr_ctx. Depending on
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10919 * the direction, multiple cookies may be parsed on the same line or not.
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10920 * The cookie name is in args and the name length in args->data.str.len.
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10921 * Accepts exactly 1 argument of type string. If the input options indicate
10922 * that no iterating is desired, then only last value is fetched if any.
William Lallemand07c8b242014-05-02 17:11:07 +0200[diff] [blame]10923 * The returned sample is of type CSTR. Can be used to parse cookies in other
10924 * files.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10925 */
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10926int smp_fetch_cookie(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10927{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10928 struct http_txn *txn;
10929 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10930 struct hdr_ctx *ctx = smp->ctx.a[2];
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10931 const struct http_msg *msg;
10932 const char *hdr_name;
10933 int hdr_name_len;
10934 char *sol;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10935 int occ = 0;
10936 int found = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10937
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10938 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10939 return 0;
10940
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10941 if (!ctx) {
10942 /* first call */
10943 ctx = &static_hdr_ctx;
10944 ctx->idx = 0;
10945 smp->ctx.a[2] = ctx;
10946 }
10947
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10948 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10949
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10950 txn = smp->strm->txn;
10951 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10952
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10953 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10954 msg = &txn->req;
10955 hdr_name = "Cookie";
10956 hdr_name_len = 6;
10957 } else {
10958 msg = &txn->rsp;
10959 hdr_name = "Set-Cookie";
10960 hdr_name_len = 10;
10961 }
10962
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10963 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10964 /* no explicit occurrence and single fetch => last cookie by default */
10965 occ = -1;
10966
10967 /* OK so basically here, either we want only one value and it's the
10968 * last one, or we want to iterate over all of them and we fetch the
10969 * next one.
10970 */
10971
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10972 sol = ci_head(msg->chn);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10973 if (!(smp->flags & SMP_F_NOT_LAST)) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10974 /* search for the header from the beginning, we must first initialize
10975 * the search parameters.
10976 */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10977 smp->ctx.a[0] = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10978 ctx->idx = 0;
10979 }
10980
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10981 smp->flags |= SMP_F_VOL_HDR;
10982
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10983 while (1) {
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10984 /* Note: smp->ctx.a[0] == NULL every time we need to fetch a new header */
10985 if (!smp->ctx.a[0]) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10986 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, ctx))
10987 goto out;
10988
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10989 if (ctx->vlen < args->data.str.data + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10990 continue;
10991
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10992 smp->ctx.a[0] = ctx->line + ctx->val;
10993 smp->ctx.a[1] = smp->ctx.a[0] + ctx->vlen;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10994 }
10995
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10996 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10997 smp->flags |= SMP_F_CONST;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10998 smp->ctx.a[0] = extract_cookie_value(smp->ctx.a[0], smp->ctx.a[1],
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10999 args->data.str.area,
11000 args->data.str.data,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11001 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11002 &smp->data.u.str.area,
11003 &smp->data.u.str.data);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11004 if (smp->ctx.a[0]) {
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11005 found = 1;
11006 if (occ >= 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11007 /* one value was returned into smp->data.u.str.{str,len} */
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11008 smp->flags |= SMP_F_NOT_LAST;
11009 return 1;
11010 }
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11011 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11012 /* if we're looking for last occurrence, let's loop */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11013 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11014 /* all cookie headers and values were scanned. If we're looking for the
11015 * last occurrence, we may return it now.
11016 */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11017 out:
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11018 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11019 return found;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11020}
11021
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11022/* Iterate over all cookies present in a request to count how many occurrences
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11023 * match the name in args and args->data.str.len. If <multi> is non-null, then
Willy Tarreaub169eba2013-12-16 15:14:43 +0100[diff] [blame]11024 * multiple cookies may be parsed on the same line. The returned sample is of
11025 * type UINT. Accepts exactly 1 argument of type string.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11026 */
11027static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11028smp_fetch_cookie_cnt(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11029{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11030 struct http_txn *txn;
11031 struct hdr_idx *idx;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11032 struct hdr_ctx ctx;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11033 const struct http_msg *msg;
11034 const char *hdr_name;
11035 int hdr_name_len;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11036 int cnt;
11037 char *val_beg, *val_end;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11038 char *sol;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11039
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11040 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]11041 return 0;
11042
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11043 CHECK_HTTP_MESSAGE_FIRST();
11044
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11045 txn = smp->strm->txn;
11046 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11047
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11048 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11049 msg = &txn->req;
11050 hdr_name = "Cookie";
11051 hdr_name_len = 6;
11052 } else {
11053 msg = &txn->rsp;
11054 hdr_name = "Set-Cookie";
11055 hdr_name_len = 10;
11056 }
11057
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11058 sol = ci_head(msg->chn);
Willy Tarreau46787ed2012-04-11 17:28:40 +0200[diff] [blame]11059 val_end = val_beg = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11060 ctx.idx = 0;
11061 cnt = 0;
11062
11063 while (1) {
11064 /* Note: val_beg == NULL every time we need to fetch a new header */
11065 if (!val_beg) {
11066 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, &ctx))
11067 break;
11068
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11069 if (ctx.vlen < args->data.str.data + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11070 continue;
11071
11072 val_beg = ctx.line + ctx.val;
11073 val_end = val_beg + ctx.vlen;
11074 }
11075
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11076 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]11077 smp->flags |= SMP_F_CONST;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11078 while ((val_beg = extract_cookie_value(val_beg, val_end,
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11079 args->data.str.area, args->data.str.data,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11080 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11081 &smp->data.u.str.area,
11082 &smp->data.u.str.data))) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11083 cnt++;
11084 }
11085 }
11086
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11087 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11088 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11089 smp->flags |= SMP_F_VOL_HDR;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11090 return 1;
11091}
11092
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]11093/* Fetch an cookie's integer value. The integer value is returned. It
11094 * takes a mandatory argument of type string. It relies on smp_fetch_cookie().
11095 */
11096static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11097smp_fetch_cookie_val(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]11098{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11099 int ret = smp_fetch_cookie(args, smp, kw, private);
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]11100
11101 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11102 smp->data.type = SMP_T_SINT;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11103 smp->data.u.sint = strl2ic(smp->data.u.str.area,
11104 smp->data.u.str.data);
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]11105 }
11106
11107 return ret;
11108}
11109
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]11110/************************************************************************/
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]11111/* The code below is dedicated to sample fetches */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]11112/************************************************************************/
11113
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11114/*
11115 * Given a path string and its length, find the position of beginning of the
11116 * query string. Returns NULL if no query string is found in the path.
11117 *
11118 * Example: if path = "/foo/bar/fubar?yo=mama;ye=daddy", and n = 22:
11119 *
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11120 * find_query_string(path, n, '?') points to "yo=mama;ye=daddy" string.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11121 */
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11122static inline char *find_param_list(char *path, size_t path_l, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11123{
11124 char *p;
Emeric Brun485479d2010-09-23 18:02:19 +0200[diff] [blame]11125
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11126 p = memchr(path, delim, path_l);
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11127 return p ? p + 1 : NULL;
11128}
11129
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11130static inline int is_param_delimiter(char c, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11131{
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11132 return c == '&' || c == ';' || c == delim;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11133}
11134
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11135/* after increasing a pointer value, it can exceed the first buffer
11136 * size. This function transform the value of <ptr> according with
11137 * the expected position. <chunks> is an array of the one or two
11138 * avalaible chunks. The first value is the start of the first chunk,
11139 * the second value if the end+1 of the first chunks. The third value
11140 * is NULL or the start of the second chunk and the fourth value is
11141 * the end+1 of the second chunk. The function returns 1 if does a
11142 * wrap, else returns 0.
11143 */
11144static inline int fix_pointer_if_wrap(const char **chunks, const char **ptr)
11145{
11146 if (*ptr < chunks[1])
11147 return 0;
11148 if (!chunks[2])
11149 return 0;
11150 *ptr = chunks[2] + ( *ptr - chunks[1] );
11151 return 1;
11152}
11153
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11154/*
11155 * Given a url parameter, find the starting position of the first occurence,
11156 * or NULL if the parameter is not found.
11157 *
11158 * Example: if query_string is "yo=mama;ye=daddy" and url_param_name is "ye",
11159 * the function will return query_string+8.
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11160 *
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11161 * Warning: this function returns a pointer that can point to the first chunk
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11162 * or the second chunk. The caller must be check the position before using the
11163 * result.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11164 */
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11165static const char *
11166find_url_param_pos(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11167 const char* url_param_name, size_t url_param_name_l,
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11168 char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11169{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11170 const char *pos, *last, *equal;
11171 const char **bufs = chunks;
11172 int l1, l2;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11173
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11174
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11175 pos = bufs[0];
11176 last = bufs[1];
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11177 while (pos < last) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11178 /* Check the equal. */
11179 equal = pos + url_param_name_l;
11180 if (fix_pointer_if_wrap(chunks, &equal)) {
11181 if (equal >= chunks[3])
11182 return NULL;
11183 } else {
11184 if (equal >= chunks[1])
11185 return NULL;
11186 }
11187 if (*equal == '=') {
11188 if (pos + url_param_name_l > last) {
11189 /* process wrap case, we detect a wrap. In this case, the
11190 * comparison is performed in two parts.
11191 */
11192
11193 /* This is the end, we dont have any other chunk. */
11194 if (bufs != chunks || !bufs[2])
11195 return NULL;
11196
11197 /* Compute the length of each part of the comparison. */
11198 l1 = last - pos;
11199 l2 = url_param_name_l - l1;
11200
11201 /* The second buffer is too short to contain the compared string. */
11202 if (bufs[2] + l2 > bufs[3])
11203 return NULL;
11204
11205 if (memcmp(pos, url_param_name, l1) == 0 &&
11206 memcmp(bufs[2], url_param_name+l1, l2) == 0)
11207 return pos;
11208
11209 /* Perform wrapping and jump the string who fail the comparison. */
11210 bufs += 2;
11211 pos = bufs[0] + l2;
11212 last = bufs[1];
11213
11214 } else {
11215 /* process a simple comparison. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11216 if (memcmp(pos, url_param_name, url_param_name_l) == 0)
11217 return pos;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11218 pos += url_param_name_l + 1;
11219 if (fix_pointer_if_wrap(chunks, &pos))
11220 last = bufs[2];
11221 }
11222 }
11223
11224 while (1) {
11225 /* Look for the next delimiter. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11226 while (pos < last && !is_param_delimiter(*pos, delim))
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11227 pos++;
11228 if (pos < last)
11229 break;
11230 /* process buffer wrapping. */
11231 if (bufs != chunks || !bufs[2])
11232 return NULL;
11233 bufs += 2;
11234 pos = bufs[0];
11235 last = bufs[1];
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11236 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11237 pos++;
11238 }
11239 return NULL;
11240}
11241
11242/*
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11243 * Given a url parameter name and a query string, find the next value.
11244 * An empty url_param_name matches the first available parameter.
11245 * If the parameter is found, 1 is returned and *vstart / *vend are updated to
11246 * respectively provide a pointer to the value and its end.
11247 * Otherwise, 0 is returned and vstart/vend are not modified.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11248 */
11249static int
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11250find_next_url_param(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11251 const char* url_param_name, size_t url_param_name_l,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11252 const char **vstart, const char **vend, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11253{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11254 const char *arg_start, *qs_end;
11255 const char *value_start, *value_end;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11256
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11257 arg_start = chunks[0];
11258 qs_end = chunks[1];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11259 if (url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11260 /* Looks for an argument name. */
11261 arg_start = find_url_param_pos(chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11262 url_param_name, url_param_name_l,
11263 delim);
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11264 /* Check for wrapping. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11265 if (arg_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11266 qs_end = chunks[3];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11267 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11268 if (!arg_start)
11269 return 0;
11270
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11271 if (!url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11272 while (1) {
11273 /* looks for the first argument. */
11274 value_start = memchr(arg_start, '=', qs_end - arg_start);
11275 if (!value_start) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11276 /* Check for wrapping. */
11277 if (arg_start >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11278 arg_start < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11279 chunks[2]) {
11280 arg_start = chunks[2];
11281 qs_end = chunks[3];
11282 continue;
11283 }
11284 return 0;
11285 }
11286 break;
11287 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11288 value_start++;
11289 }
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11290 else {
11291 /* Jump the argument length. */
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11292 value_start = arg_start + url_param_name_l + 1;
11293
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11294 /* Check for pointer wrapping. */
11295 if (fix_pointer_if_wrap(chunks, &value_start)) {
11296 /* Update the end pointer. */
11297 qs_end = chunks[3];
11298
11299 /* Check for overflow. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11300 if (value_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11301 return 0;
11302 }
11303 }
11304
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11305 value_end = value_start;
11306
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11307 while (1) {
11308 while ((value_end < qs_end) && !is_param_delimiter(*value_end, delim))
11309 value_end++;
11310 if (value_end < qs_end)
11311 break;
11312 /* process buffer wrapping. */
11313 if (value_end >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11314 value_end < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11315 chunks[2]) {
11316 value_end = chunks[2];
11317 qs_end = chunks[3];
11318 continue;
11319 }
11320 break;
11321 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11322
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11323 *vstart = value_start;
11324 *vend = value_end;
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11325 return 1;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11326}
11327
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11328/* This scans a URL-encoded query string. It takes an optionally wrapping
11329 * string whose first contigous chunk has its beginning in ctx->a[0] and end
11330 * in ctx->a[1], and the optional second part in (ctx->a[2]..ctx->a[3]). The
11331 * pointers are updated for next iteration before leaving.
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11332 */
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11333static int
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11334smp_fetch_param(char delim, const char *name, int name_len, const struct arg *args, struct sample *smp, const char *kw, void *private)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11335{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11336 const char *vstart, *vend;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]11337 struct buffer *temp;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11338 const char **chunks = (const char **)smp->ctx.a;
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11339
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11340 if (!find_next_url_param(chunks,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11341 name, name_len,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11342 &vstart, &vend,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11343 delim))
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11344 return 0;
11345
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11346 /* Create sample. If the value is contiguous, return the pointer as CONST,
11347 * if the value is wrapped, copy-it in a buffer.
11348 */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11349 smp->data.type = SMP_T_STR;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11350 if (chunks[2] &&
11351 vstart >= chunks[0] && vstart <= chunks[1] &&
11352 vend >= chunks[2] && vend <= chunks[3]) {
11353 /* Wrapped case. */
11354 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11355 memcpy(temp->area, vstart, chunks[1] - vstart);
11356 memcpy(temp->area + ( chunks[1] - vstart ), chunks[2],
11357 vend - chunks[2]);
11358 smp->data.u.str.area = temp->area;
11359 smp->data.u.str.data = ( chunks[1] - vstart ) + ( vend - chunks[2] );
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11360 } else {
11361 /* Contiguous case. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11362 smp->data.u.str.area = (char *)vstart;
11363 smp->data.u.str.data = vend - vstart;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11364 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
11365 }
11366
11367 /* Update context, check wrapping. */
11368 chunks[0] = vend;
11369 if (chunks[2] && vend >= chunks[2] && vend <= chunks[3]) {
11370 chunks[1] = chunks[3];
11371 chunks[2] = NULL;
11372 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11373
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11374 if (chunks[0] < chunks[1])
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11375 smp->flags |= SMP_F_NOT_LAST;
11376
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11377 return 1;
11378}
11379
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11380/* This function iterates over each parameter of the query string. It uses
11381 * ctx->a[0] and ctx->a[1] to store the beginning and end of the current
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11382 * parameter. Since it uses smp_fetch_param(), ctx->a[2..3] are both NULL.
11383 * An optional parameter name is passed in args[0], otherwise any parameter is
11384 * considered. It supports an optional delimiter argument for the beginning of
11385 * the string in args[1], which defaults to "?".
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11386 */
11387static int
11388smp_fetch_url_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11389{
11390 struct http_msg *msg;
11391 char delim = '?';
11392 const char *name;
11393 int name_len;
11394
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11395 if (!args ||
11396 (args[0].type && args[0].type != ARGT_STR) ||
11397 (args[1].type && args[1].type != ARGT_STR))
11398 return 0;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11399
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11400 name = "";
11401 name_len = 0;
11402 if (args->type == ARGT_STR) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11403 name = args->data.str.area;
11404 name_len = args->data.str.data;
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11405 }
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11406
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11407 if (args[1].type)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11408 delim = *args[1].data.str.area;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11409
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11410 if (!smp->ctx.a[0]) { // first call, find the query string
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11411 CHECK_HTTP_MESSAGE_FIRST();
11412
11413 msg = &smp->strm->txn->req;
11414
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11415 smp->ctx.a[0] = find_param_list(ci_head(msg->chn) + msg->sl.rq.u,
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11416 msg->sl.rq.u_l, delim);
11417 if (!smp->ctx.a[0])
11418 return 0;
11419
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11420 smp->ctx.a[1] = ci_head(msg->chn) + msg->sl.rq.u + msg->sl.rq.u_l;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11421
11422 /* Assume that the context is filled with NULL pointer
11423 * before the first call.
11424 * smp->ctx.a[2] = NULL;
11425 * smp->ctx.a[3] = NULL;
11426 */
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11427 }
11428
11429 return smp_fetch_param(delim, name, name_len, args, smp, kw, private);
11430}
11431
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11432/* This function iterates over each parameter of the body. This requires
11433 * that the body has been waited for using http-buffer-request. It uses
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11434 * ctx->a[0] and ctx->a[1] to store the beginning and end of the first
11435 * contigous part of the body, and optionally ctx->a[2..3] to reference the
11436 * optional second part if the body wraps at the end of the buffer. An optional
11437 * parameter name is passed in args[0], otherwise any parameter is considered.
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11438 */
11439static int
11440smp_fetch_body_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11441{
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11442 struct http_msg *msg;
11443 unsigned long len;
11444 unsigned long block1;
11445 char *body;
11446 const char *name;
11447 int name_len;
11448
11449 if (!args || (args[0].type && args[0].type != ARGT_STR))
11450 return 0;
11451
11452 name = "";
11453 name_len = 0;
11454 if (args[0].type == ARGT_STR) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11455 name = args[0].data.str.area;
11456 name_len = args[0].data.str.data;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11457 }
11458
11459 if (!smp->ctx.a[0]) { // first call, find the query string
11460 CHECK_HTTP_MESSAGE_FIRST();
11461
11462 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11463 msg = &smp->strm->txn->req;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11464 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11465 msg = &smp->strm->txn->rsp;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11466
11467 len = http_body_bytes(msg);
Willy Tarreau188e2302018-06-15 11:11:53 +0200[diff] [blame]11468 body = c_ptr(msg->chn, -http_data_rewind(msg));
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11469
11470 block1 = len;
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]11471 if (block1 > b_wrap(&msg->chn->buf) - body)
11472 block1 = b_wrap(&msg->chn->buf) - body;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11473
11474 if (block1 == len) {
11475 /* buffer is not wrapped (or empty) */
11476 smp->ctx.a[0] = body;
11477 smp->ctx.a[1] = body + len;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11478
11479 /* Assume that the context is filled with NULL pointer
11480 * before the first call.
11481 * smp->ctx.a[2] = NULL;
11482 * smp->ctx.a[3] = NULL;
11483 */
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11484 }
11485 else {
11486 /* buffer is wrapped, we need to defragment it */
11487 smp->ctx.a[0] = body;
11488 smp->ctx.a[1] = body + block1;
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]11489 smp->ctx.a[2] = b_orig(&msg->chn->buf);
11490 smp->ctx.a[3] = b_orig(&msg->chn->buf) + ( len - block1 );
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11491 }
11492 }
11493 return smp_fetch_param('&', name, name_len, args, smp, kw, private);
11494}
11495
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11496/* Return the signed integer value for the specified url parameter (see url_param
11497 * above).
11498 */
11499static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11500smp_fetch_url_param_val(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11501{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11502 int ret = smp_fetch_url_param(args, smp, kw, private);
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11503
11504 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11505 smp->data.type = SMP_T_SINT;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11506 smp->data.u.sint = strl2ic(smp->data.u.str.area,
11507 smp->data.u.str.data);
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11508 }
11509
11510 return ret;
11511}
11512
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11513/* This produces a 32-bit hash of the concatenation of the first occurrence of
11514 * the Host header followed by the path component if it begins with a slash ('/').
11515 * This means that '*' will not be added, resulting in exactly the first Host
11516 * entry. If no Host header is found, then the path is used. The resulting value
11517 * is hashed using the url hash followed by a full avalanche hash and provides a
11518 * 32-bit integer value. This fetch is useful for tracking per-URL activity on
11519 * high-traffic sites without having to store whole paths.
11520 * this differs from the base32 functions in that it includes the url parameters
11521 * as well as the path
11522 */
11523static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11524smp_fetch_url32(const struct arg *args, struct sample *smp, const char *kw, void *private)
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11525{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11526 struct http_txn *txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11527 struct hdr_ctx ctx;
11528 unsigned int hash = 0;
11529 char *ptr, *beg, *end;
11530 int len;
11531
11532 CHECK_HTTP_MESSAGE_FIRST();
11533
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11534 txn = smp->strm->txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11535 ctx.idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11536 if (http_find_header2("Host", 4, ci_head(txn->req.chn), &txn->hdr_idx, &ctx)) {
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11537 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
11538 ptr = ctx.line + ctx.val;
11539 len = ctx.vlen;
11540 while (len--)
11541 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
11542 }
11543
11544 /* now retrieve the path */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11545 end = ci_head(txn->req.chn) + txn->req.sl.rq.u + txn->req.sl.rq.u_l;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11546 beg = http_get_path(txn);
11547 if (!beg)
11548 beg = end;
11549
11550 for (ptr = beg; ptr < end ; ptr++);
11551
11552 if (beg < ptr && *beg == '/') {
11553 while (beg < ptr)
11554 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
11555 }
11556 hash = full_hash(hash);
11557
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11558 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11559 smp->data.u.sint = hash;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11560 smp->flags = SMP_F_VOL_1ST;
11561 return 1;
11562}
11563
11564/* This concatenates the source address with the 32-bit hash of the Host and
11565 * URL as returned by smp_fetch_base32(). The idea is to have per-source and
11566 * per-url counters. The result is a binary block from 8 to 20 bytes depending
11567 * on the source address length. The URL hash is stored before the address so
11568 * that in environments where IPv6 is insignificant, truncating the output to
11569 * 8 bytes would still work.
11570 */
11571static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11572smp_fetch_url32_src(const struct arg *args, struct sample *smp, const char *kw, void *private)
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11573{
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]11574 struct buffer *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11575 struct connection *cli_conn = objt_conn(smp->sess->origin);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11576
Dragan Dosendb5af612016-06-16 11:23:01 +0200[diff] [blame]11577 if (!cli_conn)
11578 return 0;
11579
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11580 if (!smp_fetch_url32(args, smp, kw, private))
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11581 return 0;
11582
11583 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11584 *(unsigned int *) temp->area = htonl(smp->data.u.sint);
11585 temp->data += sizeof(unsigned int);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11586
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11587 switch (cli_conn->addr.from.ss_family) {
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11588 case AF_INET:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11589 memcpy(temp->area + temp->data,
11590 &((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr,
11591 4);
11592 temp->data += 4;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11593 break;
11594 case AF_INET6:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11595 memcpy(temp->area + temp->data,
11596 &((struct sockaddr_in6 *)&cli_conn->addr.from)->sin6_addr,
11597 16);
11598 temp->data += 16;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11599 break;
11600 default:
11601 return 0;
11602 }
11603
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11604 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11605 smp->data.type = SMP_T_BIN;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11606 return 1;
11607}
11608
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11609/* This function is used to validate the arguments passed to any "hdr" fetch
11610 * keyword. These keywords support an optional positive or negative occurrence
11611 * number. We must ensure that the number is greater than -MAX_HDR_HISTORY. It
11612 * is assumed that the types are already the correct ones. Returns 0 on error,
11613 * non-zero if OK. If <err> is not NULL, it will be filled with a pointer to an
11614 * error message in case of error, that the caller is responsible for freeing.
11615 * The initial location must either be freeable or NULL.
11616 */
Thierry FOURNIER49f45af2014-12-08 19:50:43 +0100[diff] [blame]11617int val_hdr(struct arg *arg, char **err_msg)
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11618{
11619 if (arg && arg[1].type == ARGT_SINT && arg[1].data.sint < -MAX_HDR_HISTORY) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]11620 memprintf(err_msg, "header occurrence must be >= %d", -MAX_HDR_HISTORY);
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11621 return 0;
11622 }
11623 return 1;
11624}
11625
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11626/* takes an UINT value on input supposed to represent the time since EPOCH,
11627 * adds an optional offset found in args[0] and emits a string representing
11628 * the date in RFC-1123/5322 format.
11629 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11630static int sample_conv_http_date(const struct arg *args, struct sample *smp, void *private)
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11631{
Cyril Bontéf78d8962016-01-22 19:40:28 +0100[diff] [blame]11632 const char day[7][4] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11633 const char mon[12][4] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]11634 struct buffer *temp;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11635 struct tm *tm;
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11636 /* With high numbers, the date returned can be negative, the 55 bits mask prevent this. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11637 time_t curr_date = smp->data.u.sint & 0x007fffffffffffffLL;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11638
11639 /* add offset */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11640 if (args && (args[0].type == ARGT_SINT))
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11641 curr_date += args[0].data.sint;
11642
11643 tm = gmtime(&curr_date);
Thierry FOURNIERfac9ccf2015-07-08 00:15:20 +0200[diff] [blame]11644 if (!tm)
11645 return 0;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11646
11647 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11648 temp->data = snprintf(temp->area, temp->size - temp->data,
11649 "%s, %02d %s %04d %02d:%02d:%02d GMT",
11650 day[tm->tm_wday], tm->tm_mday, mon[tm->tm_mon],
11651 1900+tm->tm_year,
11652 tm->tm_hour, tm->tm_min, tm->tm_sec);
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11653
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11654 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11655 smp->data.type = SMP_T_STR;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11656 return 1;
11657}
11658
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11659/* Match language range with language tag. RFC2616 14.4:
11660 *
11661 * A language-range matches a language-tag if it exactly equals
11662 * the tag, or if it exactly equals a prefix of the tag such
11663 * that the first tag character following the prefix is "-".
11664 *
11665 * Return 1 if the strings match, else return 0.
11666 */
11667static inline int language_range_match(const char *range, int range_len,
11668 const char *tag, int tag_len)
11669{
11670 const char *end = range + range_len;
11671 const char *tend = tag + tag_len;
11672 while (range < end) {
11673 if (*range == '-' && tag == tend)
11674 return 1;
11675 if (*range != *tag || tag == tend)
11676 return 0;
11677 range++;
11678 tag++;
11679 }
11680 /* Return true only if the last char of the tag is matched. */
11681 return tag == tend;
11682}
11683
11684/* Arguments: The list of expected value, the number of parts returned and the separator */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11685static int sample_conv_q_prefered(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11686{
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11687 const char *al = smp->data.u.str.area;
11688 const char *end = al + smp->data.u.str.data;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11689 const char *token;
11690 int toklen;
11691 int qvalue;
11692 const char *str;
11693 const char *w;
11694 int best_q = 0;
11695
11696 /* Set the constant to the sample, because the output of the
11697 * function will be peek in the constant configuration string.
11698 */
11699 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11700 smp->data.u.str.size = 0;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11701 smp->data.u.str.area = "";
11702 smp->data.u.str.data = 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11703
11704 /* Parse the accept language */
11705 while (1) {
11706
11707 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11708 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11709 al++;
11710 if (al >= end)
11711 break;
11712
11713 /* Start of the fisrt word. */
11714 token = al;
11715
11716 /* Look for separator: isspace(), ',' or ';'. Next value if 0 length word. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11717 while (al < end && *al != ';' && *al != ',' && !isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11718 al++;
11719 if (al == token)
11720 goto expect_comma;
11721
11722 /* Length of the token. */
11723 toklen = al - token;
11724 qvalue = 1000;
11725
11726 /* Check if the token exists in the list. If the token not exists,
11727 * jump to the next token.
11728 */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11729 str = args[0].data.str.area;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11730 w = str;
11731 while (1) {
11732 if (*str == ';' || *str == '\0') {
11733 if (language_range_match(token, toklen, w, str-w))
11734 goto look_for_q;
11735 if (*str == '\0')
11736 goto expect_comma;
11737 w = str + 1;
11738 }
11739 str++;
11740 }
11741 goto expect_comma;
11742
11743look_for_q:
11744
11745 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11746 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11747 al++;
11748 if (al >= end)
11749 goto process_value;
11750
11751 /* If ',' is found, process the result */
11752 if (*al == ',')
11753 goto process_value;
11754
11755 /* If the character is different from ';', look
11756 * for the end of the header part in best effort.
11757 */
11758 if (*al != ';')
11759 goto expect_comma;
11760
11761 /* Assumes that the char is ';', now expect "q=". */
11762 al++;
11763
11764 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11765 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11766 al++;
11767 if (al >= end)
11768 goto process_value;
11769
11770 /* Expect 'q'. If no 'q', continue in best effort */
11771 if (*al != 'q')
11772 goto process_value;
11773 al++;
11774
11775 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11776 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11777 al++;
11778 if (al >= end)
11779 goto process_value;
11780
11781 /* Expect '='. If no '=', continue in best effort */
11782 if (*al != '=')
11783 goto process_value;
11784 al++;
11785
11786 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11787 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11788 al++;
11789 if (al >= end)
11790 goto process_value;
11791
11792 /* Parse the q value. */
11793 qvalue = parse_qvalue(al, &al);
11794
11795process_value:
11796
11797 /* If the new q value is the best q value, then store the associated
11798 * language in the response. If qvalue is the biggest value (1000),
11799 * break the process.
11800 */
11801 if (qvalue > best_q) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11802 smp->data.u.str.area = (char *)w;
11803 smp->data.u.str.data = str - w;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11804 if (qvalue >= 1000)
11805 break;
11806 best_q = qvalue;
11807 }
11808
11809expect_comma:
11810
11811 /* Expect comma or end. If the end is detected, quit the loop. */
11812 while (al < end && *al != ',')
11813 al++;
11814 if (al >= end)
11815 break;
11816
11817 /* Comma is found, jump it and restart the analyzer. */
11818 al++;
11819 }
11820
11821 /* Set default value if required. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11822 if (smp->data.u.str.data == 0 && args[1].type == ARGT_STR) {
11823 smp->data.u.str.area = args[1].data.str.area;
11824 smp->data.u.str.data = args[1].data.str.data;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11825 }
11826
11827 /* Return true only if a matching language was found. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11828 return smp->data.u.str.data != 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11829}
11830
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11831/* This fetch url-decode any input string. */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11832static int sample_conv_url_dec(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11833{
11834 /* If the constant flag is set or if not size is avalaible at
11835 * the end of the buffer, copy the string in other buffer
11836 * before decoding.
11837 */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11838 if (smp->flags & SMP_F_CONST || smp->data.u.str.size <= smp->data.u.str.data) {
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]11839 struct buffer *str = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11840 memcpy(str->area, smp->data.u.str.area, smp->data.u.str.data);
11841 smp->data.u.str.area = str->area;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11842 smp->data.u.str.size = str->size;
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11843 smp->flags &= ~SMP_F_CONST;
11844 }
11845
11846 /* Add final \0 required by url_decode(), and convert the input string. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11847 smp->data.u.str.area[smp->data.u.str.data] = '\0';
11848 smp->data.u.str.data = url_decode(smp->data.u.str.area);
11849 return (smp->data.u.str.data >= 0);
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11850}
11851
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11852static int smp_conv_req_capture(const struct arg *args, struct sample *smp, void *private)
11853{
11854 struct proxy *fe = strm_fe(smp->strm);
11855 int idx, i;
11856 struct cap_hdr *hdr;
11857 int len;
11858
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11859 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11860 return 0;
11861
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11862 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11863
11864 /* Check the availibity of the capture id. */
11865 if (idx > fe->nb_req_cap - 1)
11866 return 0;
11867
11868 /* Look for the original configuration. */
11869 for (hdr = fe->req_cap, i = fe->nb_req_cap - 1;
11870 hdr != NULL && i != idx ;
11871 i--, hdr = hdr->next);
11872 if (!hdr)
11873 return 0;
11874
11875 /* check for the memory allocation */
11876 if (smp->strm->req_cap[hdr->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]11877 smp->strm->req_cap[hdr->index] = pool_alloc(hdr->pool);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11878 if (smp->strm->req_cap[hdr->index] == NULL)
11879 return 0;
11880
11881 /* Check length. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11882 len = smp->data.u.str.data;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11883 if (len > hdr->len)
11884 len = hdr->len;
11885
11886 /* Capture input data. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11887 memcpy(smp->strm->req_cap[idx], smp->data.u.str.area, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11888 smp->strm->req_cap[idx][len] = '\0';
11889
11890 return 1;
11891}
11892
11893static int smp_conv_res_capture(const struct arg *args, struct sample *smp, void *private)
11894{
11895 struct proxy *fe = strm_fe(smp->strm);
11896 int idx, i;
11897 struct cap_hdr *hdr;
11898 int len;
11899
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11900 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11901 return 0;
11902
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11903 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11904
11905 /* Check the availibity of the capture id. */
11906 if (idx > fe->nb_rsp_cap - 1)
11907 return 0;
11908
11909 /* Look for the original configuration. */
11910 for (hdr = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
11911 hdr != NULL && i != idx ;
11912 i--, hdr = hdr->next);
11913 if (!hdr)
11914 return 0;
11915
11916 /* check for the memory allocation */
11917 if (smp->strm->res_cap[hdr->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]11918 smp->strm->res_cap[hdr->index] = pool_alloc(hdr->pool);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11919 if (smp->strm->res_cap[hdr->index] == NULL)
11920 return 0;
11921
11922 /* Check length. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11923 len = smp->data.u.str.data;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11924 if (len > hdr->len)
11925 len = hdr->len;
11926
11927 /* Capture input data. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11928 memcpy(smp->strm->res_cap[idx], smp->data.u.str.area, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11929 smp->strm->res_cap[idx][len] = '\0';
11930
11931 return 1;
11932}
11933
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11934/* This function executes one of the set-{method,path,query,uri} actions. It
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11935 * takes the string from the variable 'replace' with length 'len', then modifies
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11936 * the relevant part of the request line accordingly. Then it updates various
11937 * pointers to the next elements which were moved, and the total buffer length.
11938 * It finds the action to be performed in p[2], previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11939 * parse_set_req_line(). It returns 0 in case of success, -1 in case of internal
11940 * error, though this can be revisited when this code is finally exploited.
11941 *
11942 * 'action' can be '0' to replace method, '1' to replace path, '2' to replace
11943 * query string and 3 to replace uri.
11944 *
11945 * In query string case, the mark question '?' must be set at the start of the
11946 * string by the caller, event if the replacement query string is empty.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11947 */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11948int http_replace_req_line(int action, const char *replace, int len,
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11949 struct proxy *px, struct stream *s)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11950{
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11951 struct http_txn *txn = s->txn;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11952 char *cur_ptr, *cur_end;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11953 int offset = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11954 int delta;
11955
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11956 switch (action) {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11957 case 0: // method
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11958 cur_ptr = ci_head(&s->req);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11959 cur_end = cur_ptr + txn->req.sl.rq.m_l;
11960
11961 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11962 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11963 txn->req.sl.rq.m_l += delta;
11964 txn->req.sl.rq.u += delta;
11965 txn->req.sl.rq.v += delta;
11966 break;
11967
11968 case 1: // path
11969 cur_ptr = http_get_path(txn);
11970 if (!cur_ptr)
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11971 cur_ptr = ci_head(&s->req) + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11972
11973 cur_end = cur_ptr;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11974 while (cur_end < ci_head(&s->req) + txn->req.sl.rq.u + txn->req.sl.rq.u_l && *cur_end != '?')
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11975 cur_end++;
11976
11977 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11978 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11979 txn->req.sl.rq.u_l += delta;
11980 txn->req.sl.rq.v += delta;
11981 break;
11982
11983 case 2: // query
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11984 offset = 1;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11985 cur_ptr = ci_head(&s->req) + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11986 cur_end = cur_ptr + txn->req.sl.rq.u_l;
11987 while (cur_ptr < cur_end && *cur_ptr != '?')
11988 cur_ptr++;
11989
11990 /* skip the question mark or indicate that we must insert it
11991 * (but only if the format string is not empty then).
11992 */
11993 if (cur_ptr < cur_end)
11994 cur_ptr++;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11995 else if (len > 1)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11996 offset = 0;
11997
11998 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11999 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12000 txn->req.sl.rq.u_l += delta;
12001 txn->req.sl.rq.v += delta;
12002 break;
12003
12004 case 3: // uri
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]12005 cur_ptr = ci_head(&s->req) + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12006 cur_end = cur_ptr + txn->req.sl.rq.u_l;
12007
12008 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12009 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12010 txn->req.sl.rq.u_l += delta;
12011 txn->req.sl.rq.v += delta;
12012 break;
12013
12014 default:
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12015 return -1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12016 }
12017
12018 /* commit changes and adjust end of message */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]12019 delta = b_rep_blk(&s->req.buf, cur_ptr, cur_end, replace + offset, len - offset);
Thierry FOURNIER7f6192c2015-04-26 18:01:40 +0200[diff] [blame]12020 txn->req.sl.rq.l += delta;
12021 txn->hdr_idx.v[0].len += delta;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12022 http_msg_move_end(&txn->req, delta);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12023 return 0;
12024}
12025
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12026/* This function replace the HTTP status code and the associated message. The
12027 * variable <status> contains the new status code. This function never fails.
12028 */
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12029void http_set_status(unsigned int status, const char *reason, struct stream *s)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12030{
12031 struct http_txn *txn = s->txn;
12032 char *cur_ptr, *cur_end;
12033 int delta;
12034 char *res;
12035 int c_l;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12036 const char *msg = reason;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12037 int msg_len;
12038
12039 chunk_reset(&trash);
12040
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12041 res = ultoa_o(status, trash.area, trash.size);
12042 c_l = res - trash.area;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12043
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12044 trash.area[c_l] = ' ';
12045 trash.data = c_l + 1;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12046
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12047 /* Do we have a custom reason format string? */
12048 if (msg == NULL)
12049 msg = get_reason(status);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12050 msg_len = strlen(msg);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12051 strncpy(&trash.area[trash.data], msg, trash.size - trash.data);
12052 trash.data += msg_len;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12053
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]12054 cur_ptr = ci_head(&s->res) + txn->rsp.sl.st.c;
12055 cur_end = ci_head(&s->res) + txn->rsp.sl.st.r + txn->rsp.sl.st.r_l;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12056
12057 /* commit changes and adjust message */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12058 delta = b_rep_blk(&s->res.buf, cur_ptr, cur_end, trash.area,
12059 trash.data);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12060
12061 /* adjust res line offsets and lengths */
12062 txn->rsp.sl.st.r += c_l - txn->rsp.sl.st.c_l;
12063 txn->rsp.sl.st.c_l = c_l;
12064 txn->rsp.sl.st.r_l = msg_len;
12065
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12066 delta = trash.data - (cur_end - cur_ptr);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12067 txn->rsp.sl.st.l += delta;
12068 txn->hdr_idx.v[0].len += delta;
12069 http_msg_move_end(&txn->rsp, delta);
12070}
12071
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12072/* This function executes one of the set-{method,path,query,uri} actions. It
12073 * builds a string in the trash from the specified format string. It finds
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]12074 * the action to be performed in <http.action>, previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12075 * parse_set_req_line(). The replacement action is excuted by the function
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]12076 * http_action_set_req_line(). It always returns ACT_RET_CONT. If an error
12077 * occurs the action is canceled, but the rule processing continue.
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12078 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12079enum act_return http_action_set_req_line(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12080 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12081{
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]12082 struct buffer *replace;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]12083 enum act_return ret = ACT_RET_ERR;
12084
12085 replace = alloc_trash_chunk();
12086 if (!replace)
12087 goto leave;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12088
12089 /* If we have to create a query string, prepare a '?'. */
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12090 if (rule->arg.http.action == 2)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12091 replace->area[replace->data++] = '?';
12092 replace->data += build_logline(s, replace->area + replace->data,
12093 replace->size - replace->data,
12094 &rule->arg.http.logfmt);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12095
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12096 http_replace_req_line(rule->arg.http.action, replace->area,
12097 replace->data, px, s);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]12098
12099 ret = ACT_RET_CONT;
12100
12101leave:
12102 free_trash_chunk(replace);
12103 return ret;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12104}
12105
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12106/* This function is just a compliant action wrapper for "set-status". */
12107enum act_return action_http_set_status(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12108 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12109{
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12110 http_set_status(rule->arg.status.code, rule->arg.status.reason, s);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12111 return ACT_RET_CONT;
12112}
12113
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12114/* parse an http-request action among :
12115 * set-method
12116 * set-path
12117 * set-query
12118 * set-uri
12119 *
12120 * All of them accept a single argument of type string representing a log-format.
12121 * The resulting rule makes use of arg->act.p[0..1] to store the log-format list
12122 * head, and p[2] to store the action as an int (0=method, 1=path, 2=query, 3=uri).
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12123 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12124 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12125enum act_parse_ret parse_set_req_line(const char **args, int *orig_arg, struct proxy *px,
12126 struct act_rule *rule, char **err)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12127{
12128 int cur_arg = *orig_arg;
12129
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12130 rule->action = ACT_CUSTOM;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12131
12132 switch (args[0][4]) {
12133 case 'm' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12134 rule->arg.http.action = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12135 rule->action_ptr = http_action_set_req_line;
12136 break;
12137 case 'p' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12138 rule->arg.http.action = 1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12139 rule->action_ptr = http_action_set_req_line;
12140 break;
12141 case 'q' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12142 rule->arg.http.action = 2;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12143 rule->action_ptr = http_action_set_req_line;
12144 break;
12145 case 'u' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12146 rule->arg.http.action = 3;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12147 rule->action_ptr = http_action_set_req_line;
12148 break;
12149 default:
12150 memprintf(err, "internal error: unhandled action '%s'", args[0]);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12151 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12152 }
12153
12154 if (!*args[cur_arg] ||
12155 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
12156 memprintf(err, "expects exactly 1 argument <format>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12157 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12158 }
12159
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12160 LIST_INIT(&rule->arg.http.logfmt);
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12161 px->conf.args.ctx = ARGC_HRQ;
12162 if (!parse_logformat_string(args[cur_arg], px, &rule->arg.http.logfmt, LOG_OPT_HTTP,
12163 (px->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, err)) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]12164 return ACT_RET_PRS_ERR;
12165 }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12166
12167 (*orig_arg)++;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12168 return ACT_RET_PRS_OK;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12169}
12170
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12171/* parse set-status action:
12172 * This action accepts a single argument of type int representing
12173 * an http status code. It returns ACT_RET_PRS_OK on success,
12174 * ACT_RET_PRS_ERR on error.
12175 */
12176enum act_parse_ret parse_http_set_status(const char **args, int *orig_arg, struct proxy *px,
12177 struct act_rule *rule, char **err)
12178{
12179 char *error;
12180
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12181 rule->action = ACT_CUSTOM;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12182 rule->action_ptr = action_http_set_status;
12183
12184 /* Check if an argument is available */
12185 if (!*args[*orig_arg]) {
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12186 memprintf(err, "expects 1 argument: <status>; or 3 arguments: <status> reason <fmt>");
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12187 return ACT_RET_PRS_ERR;
12188 }
12189
12190 /* convert status code as integer */
12191 rule->arg.status.code = strtol(args[*orig_arg], &error, 10);
12192 if (*error != '\0' || rule->arg.status.code < 100 || rule->arg.status.code > 999) {
12193 memprintf(err, "expects an integer status code between 100 and 999");
12194 return ACT_RET_PRS_ERR;
12195 }
12196
12197 (*orig_arg)++;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12198
12199 /* set custom reason string */
12200 rule->arg.status.reason = NULL; // If null, we use the default reason for the status code.
12201 if (*args[*orig_arg] && strcmp(args[*orig_arg], "reason") == 0 &&
12202 (*args[*orig_arg + 1] && strcmp(args[*orig_arg + 1], "if") != 0 && strcmp(args[*orig_arg + 1], "unless") != 0)) {
12203 (*orig_arg)++;
12204 rule->arg.status.reason = strdup(args[*orig_arg]);
12205 (*orig_arg)++;
12206 }
12207
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12208 return ACT_RET_PRS_OK;
12209}
12210
Willy Tarreau53275e82017-11-24 07:52:01 +0100[diff] [blame]12211/* This function executes the "reject" HTTP action. It clears the request and
12212 * response buffer without sending any response. It can be useful as an HTTP
12213 * alternative to the silent-drop action to defend against DoS attacks, and may
12214 * also be used with HTTP/2 to close a connection instead of just a stream.
12215 * The txn status is unchanged, indicating no response was sent. The termination
12216 * flags will indicate "PR". It always returns ACT_RET_STOP.
12217 */
12218enum act_return http_action_reject(struct act_rule *rule, struct proxy *px,
12219 struct session *sess, struct stream *s, int flags)
12220{
12221 channel_abort(&s->req);
12222 channel_abort(&s->res);
12223 s->req.analysers = 0;
12224 s->res.analysers = 0;
12225
12226 HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1);
12227 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1);
12228 if (sess->listener && sess->listener->counters)
12229 HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1);
12230
12231 if (!(s->flags & SF_ERR_MASK))
12232 s->flags |= SF_ERR_PRXCOND;
12233 if (!(s->flags & SF_FINST_MASK))
12234 s->flags |= SF_FINST_R;
12235
12236 return ACT_RET_CONT;
12237}
12238
12239/* parse the "reject" action:
12240 * This action takes no argument and returns ACT_RET_PRS_OK on success,
12241 * ACT_RET_PRS_ERR on error.
12242 */
12243enum act_parse_ret parse_http_action_reject(const char **args, int *orig_arg, struct proxy *px,
12244 struct act_rule *rule, char **err)
12245{
12246 rule->action = ACT_CUSTOM;
12247 rule->action_ptr = http_action_reject;
12248 return ACT_RET_PRS_OK;
12249}
12250
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12251/* This function executes the "capture" action. It executes a fetch expression,
12252 * turns the result into a string and puts it in a capture slot. It always
12253 * returns 1. If an error occurs the action is cancelled, but the rule
12254 * processing continues.
12255 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12256enum act_return http_action_req_capture(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12257 struct session *sess, struct stream *s, int flags)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12258{
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12259 struct sample *key;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12260 struct cap_hdr *h = rule->arg.cap.hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12261 char **cap = s->req_cap;
12262 int len;
12263
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12264 key = sample_fetch_as_type(s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL, rule->arg.cap.expr, SMP_T_STR);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12265 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12266 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12267
12268 if (cap[h->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]12269 cap[h->index] = pool_alloc(h->pool);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12270
12271 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12272 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12273
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12274 len = key->data.u.str.data;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12275 if (len > h->len)
12276 len = h->len;
12277
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12278 memcpy(cap[h->index], key->data.u.str.area, len);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12279 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12280 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12281}
12282
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12283/* This function executes the "capture" action and store the result in a
12284 * capture slot if exists. It executes a fetch expression, turns the result
12285 * into a string and puts it in a capture slot. It always returns 1. If an
12286 * error occurs the action is cancelled, but the rule processing continues.
12287 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12288enum act_return http_action_req_capture_by_id(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12289 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12290{
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12291 struct sample *key;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12292 struct cap_hdr *h;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12293 char **cap = s->req_cap;
12294 struct proxy *fe = strm_fe(s);
12295 int len;
12296 int i;
12297
12298 /* Look for the original configuration. */
12299 for (h = fe->req_cap, i = fe->nb_req_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12300 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12301 i--, h = h->next);
12302 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12303 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12304
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12305 key = sample_fetch_as_type(s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL, rule->arg.capid.expr, SMP_T_STR);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12306 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12307 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12308
12309 if (cap[h->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]12310 cap[h->index] = pool_alloc(h->pool);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12311
12312 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12313 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12314
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12315 len = key->data.u.str.data;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12316 if (len > h->len)
12317 len = h->len;
12318
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12319 memcpy(cap[h->index], key->data.u.str.area, len);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12320 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12321 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12322}
12323
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12324/* Check an "http-request capture" action.
12325 *
12326 * The function returns 1 in success case, otherwise, it returns 0 and err is
12327 * filled.
12328 */
12329int check_http_req_capture(struct act_rule *rule, struct proxy *px, char **err)
12330{
Christopher Fauletfd608dd2017-12-04 09:45:15 +0100[diff] [blame]12331 if (rule->action_ptr != http_action_req_capture_by_id)
12332 return 1;
12333
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12334 if (rule->arg.capid.idx >= px->nb_req_cap) {
12335 memprintf(err, "unable to find capture id '%d' referenced by http-request capture rule",
12336 rule->arg.capid.idx);
12337 return 0;
12338 }
12339
12340 return 1;
12341}
12342
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12343/* parse an "http-request capture" action. It takes a single argument which is
12344 * a sample fetch expression. It stores the expression into arg->act.p[0] and
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12345 * the allocated hdr_cap struct or the preallocated "id" into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12346 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12347 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12348enum act_parse_ret parse_http_req_capture(const char **args, int *orig_arg, struct proxy *px,
12349 struct act_rule *rule, char **err)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12350{
12351 struct sample_expr *expr;
12352 struct cap_hdr *hdr;
12353 int cur_arg;
Willy Tarreau3986ac12015-05-08 16:13:42 +0200[diff] [blame]12354 int len = 0;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12355
12356 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12357 if (strcmp(args[cur_arg], "if") == 0 ||
12358 strcmp(args[cur_arg], "unless") == 0)
12359 break;
12360
12361 if (cur_arg < *orig_arg + 3) {
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12362 memprintf(err, "expects <expression> [ 'len' <length> | id <idx> ]");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12363 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12364 }
12365
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12366 cur_arg = *orig_arg;
12367 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12368 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12369 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12370
12371 if (!(expr->fetch->val & SMP_VAL_FE_HRQ_HDR)) {
12372 memprintf(err,
12373 "fetch method '%s' extracts information from '%s', none of which is available here",
12374 args[cur_arg-1], sample_src_names(expr->fetch->use));
12375 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12376 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12377 }
12378
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12379 if (!args[cur_arg] || !*args[cur_arg]) {
12380 memprintf(err, "expects 'len or 'id'");
12381 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12382 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12383 }
12384
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12385 if (strcmp(args[cur_arg], "len") == 0) {
12386 cur_arg++;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12387
12388 if (!(px->cap & PR_CAP_FE)) {
12389 memprintf(err, "proxy '%s' has no frontend capability", px->id);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12390 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12391 }
12392
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12393 px->conf.args.ctx = ARGC_CAP;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12394
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12395 if (!args[cur_arg]) {
12396 memprintf(err, "missing length value");
12397 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12398 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12399 }
12400 /* we copy the table name for now, it will be resolved later */
12401 len = atoi(args[cur_arg]);
12402 if (len <= 0) {
12403 memprintf(err, "length must be > 0");
12404 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12405 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12406 }
12407 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12408
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12409 if (!len) {
12410 memprintf(err, "a positive 'len' argument is mandatory");
12411 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12412 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12413 }
12414
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]12415 hdr = calloc(1, sizeof(*hdr));
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12416 hdr->next = px->req_cap;
12417 hdr->name = NULL; /* not a header capture */
12418 hdr->namelen = 0;
12419 hdr->len = len;
12420 hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED);
12421 hdr->index = px->nb_req_cap++;
12422
12423 px->req_cap = hdr;
12424 px->to_log |= LW_REQHDR;
12425
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12426 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12427 rule->action_ptr = http_action_req_capture;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12428 rule->arg.cap.expr = expr;
12429 rule->arg.cap.hdr = hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12430 }
12431
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12432 else if (strcmp(args[cur_arg], "id") == 0) {
12433 int id;
12434 char *error;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12435
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12436 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12437
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12438 if (!args[cur_arg]) {
12439 memprintf(err, "missing id value");
12440 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12441 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12442 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12443
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12444 id = strtol(args[cur_arg], &error, 10);
12445 if (*error != '\0') {
12446 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12447 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12448 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12449 }
12450 cur_arg++;
12451
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12452 px->conf.args.ctx = ARGC_CAP;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12453
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12454 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12455 rule->action_ptr = http_action_req_capture_by_id;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12456 rule->check_ptr = check_http_req_capture;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12457 rule->arg.capid.expr = expr;
12458 rule->arg.capid.idx = id;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12459 }
12460
12461 else {
12462 memprintf(err, "expects 'len' or 'id', found '%s'", args[cur_arg]);
12463 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12464 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12465 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12466
12467 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12468 return ACT_RET_PRS_OK;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12469}
12470
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12471/* This function executes the "capture" action and store the result in a
12472 * capture slot if exists. It executes a fetch expression, turns the result
12473 * into a string and puts it in a capture slot. It always returns 1. If an
12474 * error occurs the action is cancelled, but the rule processing continues.
12475 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12476enum act_return http_action_res_capture_by_id(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12477 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12478{
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12479 struct sample *key;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12480 struct cap_hdr *h;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12481 char **cap = s->res_cap;
12482 struct proxy *fe = strm_fe(s);
12483 int len;
12484 int i;
12485
12486 /* Look for the original configuration. */
12487 for (h = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12488 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12489 i--, h = h->next);
12490 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12491 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12492
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12493 key = sample_fetch_as_type(s->be, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL, rule->arg.capid.expr, SMP_T_STR);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12494 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12495 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12496
12497 if (cap[h->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]12498 cap[h->index] = pool_alloc(h->pool);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12499
12500 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12501 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12502
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12503 len = key->data.u.str.data;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12504 if (len > h->len)
12505 len = h->len;
12506
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12507 memcpy(cap[h->index], key->data.u.str.area, len);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12508 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12509 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12510}
12511
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12512/* Check an "http-response capture" action.
12513 *
12514 * The function returns 1 in success case, otherwise, it returns 0 and err is
12515 * filled.
12516 */
12517int check_http_res_capture(struct act_rule *rule, struct proxy *px, char **err)
12518{
Christopher Fauletfd608dd2017-12-04 09:45:15 +0100[diff] [blame]12519 if (rule->action_ptr != http_action_res_capture_by_id)
12520 return 1;
12521
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12522 if (rule->arg.capid.idx >= px->nb_rsp_cap) {
12523 memprintf(err, "unable to find capture id '%d' referenced by http-response capture rule",
12524 rule->arg.capid.idx);
12525 return 0;
12526 }
12527
12528 return 1;
12529}
12530
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12531/* parse an "http-response capture" action. It takes a single argument which is
12532 * a sample fetch expression. It stores the expression into arg->act.p[0] and
12533 * the allocated hdr_cap struct od the preallocated id into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12534 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12535 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12536enum act_parse_ret parse_http_res_capture(const char **args, int *orig_arg, struct proxy *px,
12537 struct act_rule *rule, char **err)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12538{
12539 struct sample_expr *expr;
12540 int cur_arg;
12541 int id;
12542 char *error;
12543
12544 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12545 if (strcmp(args[cur_arg], "if") == 0 ||
12546 strcmp(args[cur_arg], "unless") == 0)
12547 break;
12548
12549 if (cur_arg < *orig_arg + 3) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12550 memprintf(err, "expects <expression> id <idx>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12551 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12552 }
12553
12554 cur_arg = *orig_arg;
12555 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12556 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12557 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12558
12559 if (!(expr->fetch->val & SMP_VAL_FE_HRS_HDR)) {
12560 memprintf(err,
12561 "fetch method '%s' extracts information from '%s', none of which is available here",
12562 args[cur_arg-1], sample_src_names(expr->fetch->use));
12563 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12564 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12565 }
12566
12567 if (!args[cur_arg] || !*args[cur_arg]) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12568 memprintf(err, "expects 'id'");
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12569 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12570 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12571 }
12572
12573 if (strcmp(args[cur_arg], "id") != 0) {
12574 memprintf(err, "expects 'id', found '%s'", args[cur_arg]);
12575 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12576 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12577 }
12578
12579 cur_arg++;
12580
12581 if (!args[cur_arg]) {
12582 memprintf(err, "missing id value");
12583 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12584 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12585 }
12586
12587 id = strtol(args[cur_arg], &error, 10);
12588 if (*error != '\0') {
12589 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12590 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12591 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12592 }
12593 cur_arg++;
12594
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12595 px->conf.args.ctx = ARGC_CAP;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12596
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12597 rule->action = ACT_CUSTOM;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12598 rule->action_ptr = http_action_res_capture_by_id;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12599 rule->check_ptr = check_http_res_capture;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12600 rule->arg.capid.expr = expr;
12601 rule->arg.capid.idx = id;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12602
12603 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12604 return ACT_RET_PRS_OK;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12605}
12606
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12607/*
12608 * Return the struct http_req_action_kw associated to a keyword.
12609 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12610struct action_kw *action_http_req_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12611{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12612 return action_lookup(&http_req_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12613}
12614
12615/*
12616 * Return the struct http_res_action_kw associated to a keyword.
12617 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12618struct action_kw *action_http_res_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12619{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12620 return action_lookup(&http_res_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12621}
12622
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12623
12624/* "show errors" handler for the CLI. Returns 0 if wants to continue, 1 to stop
12625 * now.
12626 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200[diff] [blame]12627static int cli_parse_show_errors(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12628{
12629 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
12630 return 1;
12631
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12632 if (*args[2]) {
12633 struct proxy *px;
12634
12635 px = proxy_find_by_name(args[2], 0, 0);
12636 if (px)
12637 appctx->ctx.errors.iid = px->uuid;
12638 else
12639 appctx->ctx.errors.iid = atoi(args[2]);
12640
12641 if (!appctx->ctx.errors.iid) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +0200[diff] [blame]12642 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12643 appctx->ctx.cli.msg = "No such proxy.\n";
12644 appctx->st0 = CLI_ST_PRINT;
12645 return 1;
12646 }
12647 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12648 else
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12649 appctx->ctx.errors.iid = -1; // dump all proxies
12650
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12651 appctx->ctx.errors.flag = 0;
12652 if (strcmp(args[3], "request") == 0)
12653 appctx->ctx.errors.flag |= 4; // ignore response
12654 else if (strcmp(args[3], "response") == 0)
12655 appctx->ctx.errors.flag |= 2; // ignore request
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12656 appctx->ctx.errors.px = NULL;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12657 return 0;
12658}
12659
12660/* This function dumps all captured errors onto the stream interface's
12661 * read buffer. It returns 0 if the output buffer is full and it needs
12662 * to be called again, otherwise non-zero.
12663 */
12664static int cli_io_handler_show_errors(struct appctx *appctx)
12665{
12666 struct stream_interface *si = appctx->owner;
12667 extern const char *monthname[12];
12668
12669 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
12670 return 1;
12671
12672 chunk_reset(&trash);
12673
12674 if (!appctx->ctx.errors.px) {
12675 /* the function had not been called yet, let's prepare the
12676 * buffer for a response.
12677 */
12678 struct tm tm;
12679
12680 get_localtime(date.tv_sec, &tm);
12681 chunk_appendf(&trash, "Total events captured on [%02d/%s/%04d:%02d:%02d:%02d.%03d] : %u\n",
12682 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12683 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(date.tv_usec/1000),
12684 error_snapshot_id);
12685
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12686 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12687 /* Socket buffer full. Let's try again later from the same point */
12688 si_applet_cant_put(si);
12689 return 0;
12690 }
12691
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12692 appctx->ctx.errors.px = proxies_list;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12693 appctx->ctx.errors.bol = 0;
12694 appctx->ctx.errors.ptr = -1;
12695 }
12696
12697 /* we have two inner loops here, one for the proxy, the other one for
12698 * the buffer.
12699 */
12700 while (appctx->ctx.errors.px) {
12701 struct error_snapshot *es;
12702
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12703 if ((appctx->ctx.errors.flag & 1) == 0) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12704 es = &appctx->ctx.errors.px->invalid_req;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12705 if (appctx->ctx.errors.flag & 2) // skip req
12706 goto next;
12707 }
12708 else {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12709 es = &appctx->ctx.errors.px->invalid_rep;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12710 if (appctx->ctx.errors.flag & 4) // skip resp
12711 goto next;
12712 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12713
12714 if (!es->when.tv_sec)
12715 goto next;
12716
12717 if (appctx->ctx.errors.iid >= 0 &&
12718 appctx->ctx.errors.px->uuid != appctx->ctx.errors.iid &&
12719 es->oe->uuid != appctx->ctx.errors.iid)
12720 goto next;
12721
12722 if (appctx->ctx.errors.ptr < 0) {
12723 /* just print headers now */
12724
12725 char pn[INET6_ADDRSTRLEN];
12726 struct tm tm;
12727 int port;
12728
12729 get_localtime(es->when.tv_sec, &tm);
12730 chunk_appendf(&trash, " \n[%02d/%s/%04d:%02d:%02d:%02d.%03d]",
12731 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12732 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(es->when.tv_usec/1000));
12733
12734 switch (addr_to_str(&es->src, pn, sizeof(pn))) {
12735 case AF_INET:
12736 case AF_INET6:
12737 port = get_host_port(&es->src);
12738 break;
12739 default:
12740 port = 0;
12741 }
12742
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12743 switch (appctx->ctx.errors.flag & 1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12744 case 0:
12745 chunk_appendf(&trash,
12746 " frontend %s (#%d): invalid request\n"
12747 " backend %s (#%d)",
12748 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12749 (es->oe->cap & PR_CAP_BE) ? es->oe->id : "<NONE>",
12750 (es->oe->cap & PR_CAP_BE) ? es->oe->uuid : -1);
12751 break;
12752 case 1:
12753 chunk_appendf(&trash,
12754 " backend %s (#%d): invalid response\n"
12755 " frontend %s (#%d)",
12756 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12757 es->oe->id, es->oe->uuid);
12758 break;
12759 }
12760
12761 chunk_appendf(&trash,
12762 ", server %s (#%d), event #%u\n"
12763 " src %s:%d, session #%d, session flags 0x%08x\n"
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]12764 " HTTP msg state %s(%d), msg flags 0x%08x, tx flags 0x%08x\n"
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12765 " HTTP chunk len %lld bytes, HTTP body len %lld bytes\n"
12766 " buffer flags 0x%08x, out %d bytes, total %lld bytes\n"
12767 " pending %d bytes, wrapping at %d, error at position %d:\n \n",
12768 es->srv ? es->srv->id : "<NONE>", es->srv ? es->srv->puid : -1,
12769 es->ev_id,
12770 pn, port, es->sid, es->s_flags,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]12771 h1_msg_state_str(es->state), es->state, es->m_flags, es->t_flags,
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12772 es->m_clen, es->m_blen,
12773 es->b_flags, es->b_out, es->b_tot,
12774 es->len, es->b_wrap, es->pos);
12775
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12776 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12777 /* Socket buffer full. Let's try again later from the same point */
12778 si_applet_cant_put(si);
12779 return 0;
12780 }
12781 appctx->ctx.errors.ptr = 0;
12782 appctx->ctx.errors.sid = es->sid;
12783 }
12784
12785 if (appctx->ctx.errors.sid != es->sid) {
12786 /* the snapshot changed while we were dumping it */
12787 chunk_appendf(&trash,
12788 " WARNING! update detected on this snapshot, dump interrupted. Please re-check!\n");
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12789 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12790 si_applet_cant_put(si);
12791 return 0;
12792 }
12793 goto next;
12794 }
12795
12796 /* OK, ptr >= 0, so we have to dump the current line */
12797 while (es->buf && appctx->ctx.errors.ptr < es->len && appctx->ctx.errors.ptr < global.tune.bufsize) {
12798 int newptr;
12799 int newline;
12800
12801 newline = appctx->ctx.errors.bol;
12802 newptr = dump_text_line(&trash, es->buf, global.tune.bufsize, es->len, &newline, appctx->ctx.errors.ptr);
12803 if (newptr == appctx->ctx.errors.ptr)
12804 return 0;
12805
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12806 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12807 /* Socket buffer full. Let's try again later from the same point */
12808 si_applet_cant_put(si);
12809 return 0;
12810 }
12811 appctx->ctx.errors.ptr = newptr;
12812 appctx->ctx.errors.bol = newline;
12813 };
12814 next:
12815 appctx->ctx.errors.bol = 0;
12816 appctx->ctx.errors.ptr = -1;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12817 appctx->ctx.errors.flag ^= 1;
12818 if (!(appctx->ctx.errors.flag & 1))
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12819 appctx->ctx.errors.px = appctx->ctx.errors.px->next;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12820 }
12821
12822 /* dump complete */
12823 return 1;
12824}
12825
12826/* register cli keywords */
12827static struct cli_kw_list cli_kws = {{ },{
12828 { { "show", "errors", NULL },
12829 "show errors : report last request and response errors for each proxy",
12830 cli_parse_show_errors, cli_io_handler_show_errors, NULL,
12831 },
12832 {{},}
12833}};
12834
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12835/************************************************************************/
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12836/* All supported ACL keywords must be declared here. */
12837/************************************************************************/
12838
12839/* Note: must not be declared <const> as its list will be overwritten.
12840 * Please take care of keeping this list alphabetically sorted.
12841 */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12842static struct acl_kw_list acl_kws = {ILH, {
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12843 { "base", "base", PAT_MATCH_STR },
12844 { "base_beg", "base", PAT_MATCH_BEG },
12845 { "base_dir", "base", PAT_MATCH_DIR },
12846 { "base_dom", "base", PAT_MATCH_DOM },
12847 { "base_end", "base", PAT_MATCH_END },
12848 { "base_len", "base", PAT_MATCH_LEN },
12849 { "base_reg", "base", PAT_MATCH_REG },
12850 { "base_sub", "base", PAT_MATCH_SUB },
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]12851
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12852 { "cook", "req.cook", PAT_MATCH_STR },
12853 { "cook_beg", "req.cook", PAT_MATCH_BEG },
12854 { "cook_dir", "req.cook", PAT_MATCH_DIR },
12855 { "cook_dom", "req.cook", PAT_MATCH_DOM },
12856 { "cook_end", "req.cook", PAT_MATCH_END },
12857 { "cook_len", "req.cook", PAT_MATCH_LEN },
12858 { "cook_reg", "req.cook", PAT_MATCH_REG },
12859 { "cook_sub", "req.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12860
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12861 { "hdr", "req.hdr", PAT_MATCH_STR },
12862 { "hdr_beg", "req.hdr", PAT_MATCH_BEG },
12863 { "hdr_dir", "req.hdr", PAT_MATCH_DIR },
12864 { "hdr_dom", "req.hdr", PAT_MATCH_DOM },
12865 { "hdr_end", "req.hdr", PAT_MATCH_END },
12866 { "hdr_len", "req.hdr", PAT_MATCH_LEN },
12867 { "hdr_reg", "req.hdr", PAT_MATCH_REG },
12868 { "hdr_sub", "req.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12869
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12870 /* these two declarations uses strings with list storage (in place
12871 * of tree storage). The basic match is PAT_MATCH_STR, but the indexation
12872 * and delete functions are relative to the list management. The parse
12873 * and match method are related to the corresponding fetch methods. This
12874 * is very particular ACL declaration mode.
12875 */
12876 { "http_auth_group", NULL, PAT_MATCH_STR, NULL, pat_idx_list_str, pat_del_list_ptr, NULL, pat_match_auth },
12877 { "method", NULL, PAT_MATCH_STR, pat_parse_meth, pat_idx_list_str, pat_del_list_ptr, NULL, pat_match_meth },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12878
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12879 { "path", "path", PAT_MATCH_STR },
12880 { "path_beg", "path", PAT_MATCH_BEG },
12881 { "path_dir", "path", PAT_MATCH_DIR },
12882 { "path_dom", "path", PAT_MATCH_DOM },
12883 { "path_end", "path", PAT_MATCH_END },
12884 { "path_len", "path", PAT_MATCH_LEN },
12885 { "path_reg", "path", PAT_MATCH_REG },
12886 { "path_sub", "path", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12887
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12888 { "req_ver", "req.ver", PAT_MATCH_STR },
12889 { "resp_ver", "res.ver", PAT_MATCH_STR },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12890
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12891 { "scook", "res.cook", PAT_MATCH_STR },
12892 { "scook_beg", "res.cook", PAT_MATCH_BEG },
12893 { "scook_dir", "res.cook", PAT_MATCH_DIR },
12894 { "scook_dom", "res.cook", PAT_MATCH_DOM },
12895 { "scook_end", "res.cook", PAT_MATCH_END },
12896 { "scook_len", "res.cook", PAT_MATCH_LEN },
12897 { "scook_reg", "res.cook", PAT_MATCH_REG },
12898 { "scook_sub", "res.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12899
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12900 { "shdr", "res.hdr", PAT_MATCH_STR },
12901 { "shdr_beg", "res.hdr", PAT_MATCH_BEG },
12902 { "shdr_dir", "res.hdr", PAT_MATCH_DIR },
12903 { "shdr_dom", "res.hdr", PAT_MATCH_DOM },
12904 { "shdr_end", "res.hdr", PAT_MATCH_END },
12905 { "shdr_len", "res.hdr", PAT_MATCH_LEN },
12906 { "shdr_reg", "res.hdr", PAT_MATCH_REG },
12907 { "shdr_sub", "res.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12908
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12909 { "url", "url", PAT_MATCH_STR },
12910 { "url_beg", "url", PAT_MATCH_BEG },
12911 { "url_dir", "url", PAT_MATCH_DIR },
12912 { "url_dom", "url", PAT_MATCH_DOM },
12913 { "url_end", "url", PAT_MATCH_END },
12914 { "url_len", "url", PAT_MATCH_LEN },
12915 { "url_reg", "url", PAT_MATCH_REG },
12916 { "url_sub", "url", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12917
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12918 { "urlp", "urlp", PAT_MATCH_STR },
12919 { "urlp_beg", "urlp", PAT_MATCH_BEG },
12920 { "urlp_dir", "urlp", PAT_MATCH_DIR },
12921 { "urlp_dom", "urlp", PAT_MATCH_DOM },
12922 { "urlp_end", "urlp", PAT_MATCH_END },
12923 { "urlp_len", "urlp", PAT_MATCH_LEN },
12924 { "urlp_reg", "urlp", PAT_MATCH_REG },
12925 { "urlp_sub", "urlp", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12926
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100[diff] [blame]12927 { /* END */ },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12928}};
12929
12930/************************************************************************/
12931/* All supported pattern keywords must be declared here. */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12932/************************************************************************/
12933/* Note: must not be declared <const> as its list will be overwritten */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12934static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12935 { "base", smp_fetch_base, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12936 { "base32", smp_fetch_base32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12937 { "base32+src", smp_fetch_base32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12938
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]12939 /* capture are allocated and are permanent in the stream */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12940 { "capture.req.hdr", smp_fetch_capture_header_req, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRQHP },
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]12941
12942 /* retrieve these captures from the HTTP logs */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12943 { "capture.req.method", smp_fetch_capture_req_method, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12944 { "capture.req.uri", smp_fetch_capture_req_uri, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12945 { "capture.req.ver", smp_fetch_capture_req_ver, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]12946
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12947 { "capture.res.hdr", smp_fetch_capture_header_res, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRSHP },
12948 { "capture.res.ver", smp_fetch_capture_res_ver, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]12949
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12950 /* cookie is valid in both directions (eg: for "stick ...") but cook*
12951 * are only here to match the ACL's name, are request-only and are used
12952 * for ACL compatibility only.
12953 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12954 { "cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12955 { "cookie", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV|SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12956 { "cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12957 { "cook_val", smp_fetch_cookie_val, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12958
12959 /* hdr is valid in both directions (eg: for "stick ...") but hdr_* are
12960 * only here to match the ACL's name, are request-only and are used for
12961 * ACL compatibility only.
12962 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12963 { "hdr", smp_fetch_hdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRQHV|SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12964 { "hdr_cnt", smp_fetch_hdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12965 { "hdr_ip", smp_fetch_hdr_ip, ARG2(0,STR,SINT), val_hdr, SMP_T_IPV4, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12966 { "hdr_val", smp_fetch_hdr_val, ARG2(0,STR,SINT), val_hdr, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12967
Willy Tarreau0a0daec2013-04-02 22:44:58 +0200[diff] [blame]12968 { "http_auth", smp_fetch_http_auth, ARG1(1,USR), NULL, SMP_T_BOOL, SMP_USE_HRQHV },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12969 { "http_auth_group", smp_fetch_http_auth_grp, ARG1(1,USR), NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12970 { "http_first_req", smp_fetch_http_first_req, 0, NULL, SMP_T_BOOL, SMP_USE_HRQHP },
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]12971 { "method", smp_fetch_meth, 0, NULL, SMP_T_METH, SMP_USE_HRQHP },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12972 { "path", smp_fetch_path, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]12973 { "query", smp_fetch_query, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12974
12975 /* HTTP protocol on the request path */
12976 { "req.proto_http", smp_fetch_proto_http, 0, NULL, SMP_T_BOOL, SMP_USE_HRQHP },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12977 { "req_proto_http", smp_fetch_proto_http, 0, NULL, SMP_T_BOOL, SMP_USE_HRQHP },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12978
12979 /* HTTP version on the request path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12980 { "req.ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
12981 { "req_ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12982
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]12983 { "req.body", smp_fetch_body, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12984 { "req.body_len", smp_fetch_body_len, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
12985 { "req.body_size", smp_fetch_body_size, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]12986 { "req.body_param", smp_fetch_body_param, ARG1(0,STR), NULL, SMP_T_BIN, SMP_USE_HRQHV },
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]12987
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]12988 { "req.hdrs", smp_fetch_hdrs, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]12989 { "req.hdrs_bin", smp_fetch_hdrs_bin, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12990
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12991 /* HTTP version on the response path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12992 { "res.ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
12993 { "resp_ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12994
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12995 /* explicit req.{cook,hdr} are used to force the fetch direction to be request-only */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12996 { "req.cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12997 { "req.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12998 { "req.cook_val", smp_fetch_cookie_val, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12999
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13000 { "req.fhdr", smp_fetch_fhdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13001 { "req.fhdr_cnt", smp_fetch_fhdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13002 { "req.hdr", smp_fetch_hdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13003 { "req.hdr_cnt", smp_fetch_hdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]13004 { "req.hdr_ip", smp_fetch_hdr_ip, ARG2(0,STR,SINT), val_hdr, SMP_T_IPV4, SMP_USE_HRQHV },
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]13005 { "req.hdr_names", smp_fetch_hdr_names, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13006 { "req.hdr_val", smp_fetch_hdr_val, ARG2(0,STR,SINT), val_hdr, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]13007
13008 /* explicit req.{cook,hdr} are used to force the fetch direction to be response-only */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13009 { "res.cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13010 { "res.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
13011 { "res.cook_val", smp_fetch_cookie_val, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]13012
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13013 { "res.fhdr", smp_fetch_fhdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13014 { "res.fhdr_cnt", smp_fetch_fhdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13015 { "res.hdr", smp_fetch_hdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13016 { "res.hdr_cnt", smp_fetch_hdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]13017 { "res.hdr_ip", smp_fetch_hdr_ip, ARG2(0,STR,SINT), val_hdr, SMP_T_IPV4, SMP_USE_HRSHV },
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]13018 { "res.hdr_names", smp_fetch_hdr_names, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13019 { "res.hdr_val", smp_fetch_hdr_val, ARG2(0,STR,SINT), val_hdr, SMP_T_SINT, SMP_USE_HRSHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]13020
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]13021 /* scook is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13022 { "scook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13023 { "scook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
13024 { "scook_val", smp_fetch_cookie_val, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13025 { "set-cookie", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV }, /* deprecated */
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]13026
13027 /* shdr is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13028 { "shdr", smp_fetch_hdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13029 { "shdr_cnt", smp_fetch_hdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]13030 { "shdr_ip", smp_fetch_hdr_ip, ARG2(0,STR,SINT), val_hdr, SMP_T_IPV4, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13031 { "shdr_val", smp_fetch_hdr_val, ARG2(0,STR,SINT), val_hdr, SMP_T_SINT, SMP_USE_HRSHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]13032
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13033 { "status", smp_fetch_stcode, 0, NULL, SMP_T_SINT, SMP_USE_HRSHP },
Thierry Fournier0e00dca2016-04-07 15:47:40 +0200[diff] [blame]13034 { "unique-id", smp_fetch_uniqueid, 0, NULL, SMP_T_STR, SMP_SRC_L4SRV },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13035 { "url", smp_fetch_url, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13036 { "url32", smp_fetch_url32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]13037 { "url32+src", smp_fetch_url32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]13038 { "url_ip", smp_fetch_url_ip, 0, NULL, SMP_T_IPV4, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13039 { "url_port", smp_fetch_url_port, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]13040 { "url_param", smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
13041 { "urlp" , smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13042 { "urlp_val", smp_fetch_url_param_val, ARG2(0,STR,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]13043 { /* END */ },
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]13044}};
13045
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]13046
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13047/************************************************************************/
13048/* All supported converter keywords must be declared here. */
13049/************************************************************************/
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]13050/* Note: must not be declared <const> as its list will be overwritten */
13051static struct sample_conv_kw_list sample_conv_kws = {ILH, {
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13052 { "http_date", sample_conv_http_date, ARG1(0,SINT), NULL, SMP_T_SINT, SMP_T_STR},
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]13053 { "language", sample_conv_q_prefered, ARG2(1,STR,STR), NULL, SMP_T_STR, SMP_T_STR},
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]13054 { "capture-req", smp_conv_req_capture, ARG1(1,SINT), NULL, SMP_T_STR, SMP_T_STR},
13055 { "capture-res", smp_conv_res_capture, ARG1(1,SINT), NULL, SMP_T_STR, SMP_T_STR},
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]13056 { "url_dec", sample_conv_url_dec, 0, NULL, SMP_T_STR, SMP_T_STR},
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]13057 { NULL, NULL, 0, 0, 0 },
13058}};
13059
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]13060
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13061/************************************************************************/
13062/* All supported http-request action keywords must be declared here. */
13063/************************************************************************/
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]13064struct action_kw_list http_req_actions = {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13065 .kw = {
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]13066 { "capture", parse_http_req_capture },
Willy Tarreau53275e82017-11-24 07:52:01 +0100[diff] [blame]13067 { "reject", parse_http_action_reject },
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13068 { "set-method", parse_set_req_line },
13069 { "set-path", parse_set_req_line },
13070 { "set-query", parse_set_req_line },
13071 { "set-uri", parse_set_req_line },
Willy Tarreaucb703b02015-04-03 09:52:01 +0200[diff] [blame]13072 { NULL, NULL }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13073 }
13074};
13075
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]13076struct action_kw_list http_res_actions = {
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]13077 .kw = {
13078 { "capture", parse_http_res_capture },
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]13079 { "set-status", parse_http_set_status },
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]13080 { NULL, NULL }
13081 }
13082};
13083
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]13084__attribute__((constructor))
13085static void __http_protocol_init(void)
13086{
13087 acl_register_keywords(&acl_kws);
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]13088 sample_register_fetches(&sample_fetch_keywords);
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]13089 sample_register_convs(&sample_conv_kws);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13090 http_req_keywords_register(&http_req_actions);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]13091 http_res_keywords_register(&http_res_actions);
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]13092 cli_register_kw(&cli_kws);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]13093}
13094
13095
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]13096/*
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]13097 * Local variables:
13098 * c-indent-level: 8
13099 * c-basic-offset: 8
13100 * End:
13101 */