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git01.mediatek.com / haproxy / 9b03c0c9a74a86f00fdce6823ff71bd663ce658f / . / src / proto_http.c
blob: 42c9d1a6221a20fecfa604d9211b504597ca2edf [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
4406 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4407 if (!LIST_ISEMPTY(&fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4408 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4409 (!(fe->options & PR_O_NULLNOLOG) || s->req.total)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4410 s->do_log(s);
4411 }
4412
Willy Tarreaud713bcc2014-06-25 15:36:04 +0200[diff] [blame]4413 /* stop tracking content-based counters */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4414 stream_stop_content_counters(s);
4415 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +0200[diff] [blame]4416
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4417 s->logs.accept_date = date; /* user-visible date for logging */
4418 s->logs.tv_accept = now; /* corrected date for internal use */
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200[diff] [blame]4419 s->logs.t_handshake = 0; /* There are no handshake in keep alive connection. */
4420 s->logs.t_idle = -1;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4421 tv_zero(&s->logs.tv_request);
4422 s->logs.t_queue = -1;
4423 s->logs.t_connect = -1;
4424 s->logs.t_data = -1;
4425 s->logs.t_close = 0;
4426 s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */
4427 s->logs.srv_queue_size = 0; /* we will get this number soon */
4428
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]4429 s->logs.bytes_in = s->req.total = ci_data(&s->req);
4430 s->logs.bytes_out = s->res.total = ci_data(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4431
Willy Tarreaud0ad4a82018-07-25 11:13:53 +0200[diff] [blame]4432 pendconn_free(s);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4433
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4434 if (objt_server(s->target)) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4435 if (s->flags & SF_CURR_SESS) {
4436 s->flags &= ~SF_CURR_SESS;
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4437 HA_ATOMIC_SUB(&objt_server(s->target)->cur_sess, 1);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4438 }
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4439 if (may_dequeue_tasks(objt_server(s->target), be))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4440 process_srv_queue(objt_server(s->target));
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4441 }
4442
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4443 s->target = NULL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4444
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4445 /* only release our endpoint if we don't intend to reuse the
4446 * connection.
4447 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4448 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4449 !si_conn_ready(&s->si[1])) {
4450 si_release_endpoint(&s->si[1]);
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4451 srv_conn = NULL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4452 }
4453
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4454 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
4455 s->si[1].err_type = SI_ET_NONE;
4456 s->si[1].conn_retries = 0; /* used for logging too */
4457 s->si[1].exp = TICK_ETERNITY;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4458 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]4459 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]4460 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]4461 s->flags &= ~(SF_DIRECT|SF_ASSIGNED|SF_ADDR_SET|SF_BE_ASSIGNED|SF_FORCE_PRST|SF_IGNORE_PRST);
4462 s->flags &= ~(SF_CURR_SESS|SF_REDIRECTABLE|SF_SRV_REUSED);
4463 s->flags &= ~(SF_ERR_MASK|SF_FINST_MASK|SF_REDISP);
Willy Tarreau543db622012-11-15 16:41:22 +0100[diff] [blame]4464
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4465 s->txn->meth = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4466 http_reset_txn(s);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4467 s->txn->flags |= TX_NOT_FIRST | TX_WAIT_NEXT_RQ;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4468
4469 if (prev_status == 401 || prev_status == 407) {
4470 /* In HTTP keep-alive mode, if we receive a 401, we still have
4471 * a chance of being able to send the visitor again to the same
4472 * server over the same connection. This is required by some
4473 * broken protocols such as NTLM, and anyway whenever there is
4474 * an opportunity for sending the challenge to the proper place,
4475 * it's better to do it (at least it helps with debugging).
4476 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4477 s->txn->flags |= TX_PREFER_LAST;
Willy Tarreaubd99d582015-09-02 10:40:43 +0200[diff] [blame]4478 if (srv_conn)
4479 srv_conn->flags |= CO_FL_PRIVATE;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4480 }
4481
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4482 /* Never ever allow to reuse a connection from a non-reuse backend */
4483 if (srv_conn && (be->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
4484 srv_conn->flags |= CO_FL_PRIVATE;
4485
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4486 if (fe->options2 & PR_O2_INDEPSTR)
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4487 s->si[1].flags |= SI_FL_INDEP_STR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4488
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4489 if (fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4490 s->req.flags |= CF_NEVER_WAIT;
4491 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200[diff] [blame]4492 }
4493
Willy Tarreau714ea782015-11-25 20:11:11 +0100[diff] [blame]4494 /* we're removing the analysers, we MUST re-enable events detection.
4495 * We don't enable close on the response channel since it's either
4496 * already closed, or in keep-alive with an idle connection handler.
4497 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4498 channel_auto_read(&s->req);
4499 channel_auto_close(&s->req);
4500 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4501
Willy Tarreau1c59bd52015-11-02 20:20:11 +0100[diff] [blame]4502 /* we're in keep-alive with an idle connection, monitor it if not already done */
4503 if (srv_conn && LIST_ISEMPTY(&srv_conn->list)) {
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4504 srv = objt_server(srv_conn->target);
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4505 if (!srv)
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4506 si_idle_cs(&s->si[1], NULL);
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4507 else if (srv_conn->flags & CO_FL_PRIVATE)
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4508 si_idle_cs(&s->si[1], (srv->priv_conns ? &srv->priv_conns[tid] : NULL));
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4509 else if (prev_flags & TX_NOT_FIRST)
4510 /* note: we check the request, not the connection, but
4511 * this is valid for strategies SAFE and AGGR, and in
4512 * case of ALWS, we don't care anyway.
4513 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4514 si_idle_cs(&s->si[1], (srv->safe_conns ? &srv->safe_conns[tid] : NULL));
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4515 else
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4516 si_idle_cs(&s->si[1], (srv->idle_conns ? &srv->idle_conns[tid] : NULL));
Willy Tarreau4320eaa2015-08-05 11:08:30 +0200[diff] [blame]4517 }
Christopher Faulete6006242017-03-10 11:52:44 +0100[diff] [blame]4518 s->req.analysers = strm_li(s) ? strm_li(s)->analysers : 0;
4519 s->res.analysers = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4520}
4521
4522
4523/* This function updates the request state machine according to the response
4524 * state machine and buffer flags. It returns 1 if it changes anything (flag
4525 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4526 * it is only used to find when a request/response couple is complete. Both
4527 * this function and its equivalent should loop until both return zero. It
4528 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4529 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4530int http_sync_req_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4531{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4532 struct channel *chn = &s->req;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4533 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4534 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4535 unsigned int old_state = txn->req.msg_state;
4536
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4537 if (unlikely(txn->req.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4538 return 0;
4539
4540 if (txn->req.msg_state == HTTP_MSG_DONE) {
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4541 /* No need to read anymore, the request was completely parsed.
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4542 * We can shut the read side unless we want to abort_on_close,
4543 * or we have a POST request. The issue with POST requests is
4544 * that some browsers still send a CRLF after the request, and
4545 * this CRLF must be read so that it does not remain in the kernel
4546 * buffers, otherwise a close could cause an RST on some systems
4547 * (eg: Linux).
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4548 * Note that if we're using keep-alive on the client side, we'd
4549 * rather poll now and keep the polling enabled for the whole
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4550 * stream's life than enabling/disabling it between each
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4551 * response and next request.
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4552 */
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4553 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4554 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]4555 (!(s->be->options & PR_O_ABRT_CLOSE) ||
4556 (s->si[0].flags & SI_FL_CLEAN_ABRT)) &&
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4557 txn->meth != HTTP_METH_POST)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4558 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4559
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4560 /* if the server closes the connection, we want to immediately react
4561 * and close the socket to save packets and syscalls.
4562 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4563 s->si[1].flags |= SI_FL_NOHALF;
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4564
Willy Tarreau7f876a12015-11-18 11:59:55 +0100[diff] [blame]4565 /* In any case we've finished parsing the request so we must
4566 * disable Nagle when sending data because 1) we're not going
4567 * to shut this side, and 2) the server is waiting for us to
4568 * send pending data.
4569 */
4570 chn->flags |= CF_NEVER_WAIT;
4571
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4572 if (txn->rsp.msg_state == HTTP_MSG_ERROR)
4573 goto wait_other_side;
4574
4575 if (txn->rsp.msg_state < HTTP_MSG_DONE) {
4576 /* The server has not finished to respond, so we
4577 * don't want to move in order not to upset it.
4578 */
4579 goto wait_other_side;
4580 }
4581
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4582 /* When we get here, it means that both the request and the
4583 * response have finished receiving. Depending on the connection
4584 * mode, we'll have to wait for the last bytes to leave in either
4585 * direction, and sometimes for a close to be effective.
4586 */
4587
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4588 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4589 /* Server-close mode : queue a connection close to the server */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4590 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW)))
4591 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4592 }
4593 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4594 /* Option forceclose is set, or either side wants to close,
4595 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4596 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4597 * once both states are CLOSED.
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4598 *
4599 * However, there is an exception if the response
4600 * length is undefined. In this case, we need to wait
4601 * the close from the server. The response will be
4602 * switched in TUNNEL mode until the end.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4603 */
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4604 if (!(txn->rsp.flags & HTTP_MSGF_XFER_LEN) &&
4605 txn->rsp.msg_state != HTTP_MSG_CLOSED)
4606 goto check_channel_flags;
4607
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4608 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
4609 channel_shutr_now(chn);
4610 channel_shutw_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4611 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4612 }
4613 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4614 /* The last possible modes are keep-alive and tunnel. Tunnel mode
4615 * will not have any analyser so it needs to poll for reads.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4616 */
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4617 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN) {
4618 channel_auto_read(chn);
4619 txn->req.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4620 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4621 }
4622
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4623 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4624 }
4625
4626 if (txn->req.msg_state == HTTP_MSG_CLOSING) {
4627 http_msg_closing:
4628 /* nothing else to forward, just waiting for the output buffer
4629 * to be empty and for the shutw_now to take effect.
4630 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4631 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4632 txn->req.msg_state = HTTP_MSG_CLOSED;
4633 goto http_msg_closed;
4634 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4635 else if (chn->flags & CF_SHUTW) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4636 txn->req.err_state = txn->req.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4637 txn->req.msg_state = HTTP_MSG_ERROR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4638 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4639 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4640 }
4641
4642 if (txn->req.msg_state == HTTP_MSG_CLOSED) {
4643 http_msg_closed:
Willy Tarreau80593512017-12-14 10:43:31 +0100[diff] [blame]4644 /* if we don't know whether the server will close, we need to hard close */
4645 if (txn->rsp.flags & HTTP_MSGF_XFER_LEN)
4646 s->si[1].flags |= SI_FL_NOLINGER; /* we want to close ASAP */
4647
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4648 /* see above in MSG_DONE why we only do this in these states */
4649 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4650 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]4651 (!(s->be->options & PR_O_ABRT_CLOSE) ||
4652 (s->si[0].flags & SI_FL_CLEAN_ABRT)))
Willy Tarreau2e7a1652013-12-15 15:32:10 +0100[diff] [blame]4653 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4654 goto wait_other_side;
4655 }
4656
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4657 check_channel_flags:
4658 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4659 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4660 /* if we've just closed an output, let's switch */
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4661 txn->req.msg_state = HTTP_MSG_CLOSING;
4662 goto http_msg_closing;
4663 }
4664
4665
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4666 wait_other_side:
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4667 return txn->req.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4668}
4669
4670
4671/* This function updates the response state machine according to the request
4672 * state machine and buffer flags. It returns 1 if it changes anything (flag
4673 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4674 * it is only used to find when a request/response couple is complete. Both
4675 * this function and its equivalent should loop until both return zero. It
4676 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4677 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4678int http_sync_res_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4679{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4680 struct channel *chn = &s->res;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4681 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4682 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4683 unsigned int old_state = txn->rsp.msg_state;
4684
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4685 if (unlikely(txn->rsp.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4686 return 0;
4687
4688 if (txn->rsp.msg_state == HTTP_MSG_DONE) {
4689 /* In theory, we don't need to read anymore, but we must
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4690 * still monitor the server connection for a possible close
4691 * while the request is being uploaded, so we don't disable
4692 * reading.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4693 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4694 /* channel_dont_read(chn); */
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4695
4696 if (txn->req.msg_state == HTTP_MSG_ERROR)
4697 goto wait_other_side;
4698
4699 if (txn->req.msg_state < HTTP_MSG_DONE) {
4700 /* The client seems to still be sending data, probably
4701 * because we got an error response during an upload.
4702 * We have the choice of either breaking the connection
4703 * or letting it pass through. Let's do the later.
4704 */
4705 goto wait_other_side;
4706 }
4707
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4708 /* When we get here, it means that both the request and the
4709 * response have finished receiving. Depending on the connection
4710 * mode, we'll have to wait for the last bytes to leave in either
4711 * direction, and sometimes for a close to be effective.
4712 */
4713
4714 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4715 /* Server-close mode : shut read and wait for the request
4716 * side to close its output buffer. The caller will detect
4717 * when we're in DONE and the other is in CLOSED and will
4718 * catch that for the final cleanup.
4719 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4720 if (!(chn->flags & (CF_SHUTR|CF_SHUTR_NOW)))
4721 channel_shutr_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4722 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4723 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4724 /* Option forceclose is set, or either side wants to close,
4725 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4726 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4727 * once both states are CLOSED.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4728 */
Christopher Fauletfd04fcf2018-02-02 15:54:15 +0100[diff] [blame]4729 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4730 channel_shutr_now(chn);
4731 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4732 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4733 }
4734 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4735 /* The last possible modes are keep-alive and tunnel. Tunnel will
4736 * need to forward remaining data. Keep-alive will need to monitor
4737 * for connection closing.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4738 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4739 channel_auto_read(chn);
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4740 chn->flags |= CF_NEVER_WAIT;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4741 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN)
4742 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4743 }
4744
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4745 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4746 }
4747
4748 if (txn->rsp.msg_state == HTTP_MSG_CLOSING) {
4749 http_msg_closing:
4750 /* nothing else to forward, just waiting for the output buffer
4751 * to be empty and for the shutw_now to take effect.
4752 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4753 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4754 txn->rsp.msg_state = HTTP_MSG_CLOSED;
4755 goto http_msg_closed;
4756 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4757 else if (chn->flags & CF_SHUTW) {
Christopher Fauleta3992e02017-07-18 10:35:55 +0200[diff] [blame]4758 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4759 txn->rsp.msg_state = HTTP_MSG_ERROR;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4760 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4761 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4762 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4763 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4764 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4765 }
4766
4767 if (txn->rsp.msg_state == HTTP_MSG_CLOSED) {
4768 http_msg_closed:
4769 /* drop any pending data */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]4770 channel_truncate(chn);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4771 channel_auto_close(chn);
4772 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4773 goto wait_other_side;
4774 }
4775
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4776 check_channel_flags:
4777 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4778 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4779 /* if we've just closed an output, let's switch */
4780 txn->rsp.msg_state = HTTP_MSG_CLOSING;
4781 goto http_msg_closing;
4782 }
4783
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4784 wait_other_side:
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4785 /* We force the response to leave immediately if we're waiting for the
4786 * other side, since there is no pending shutdown to push it out.
4787 */
4788 if (!channel_is_empty(chn))
4789 chn->flags |= CF_SEND_DONTWAIT;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4790 return txn->rsp.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4791}
4792
4793
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4794/* Resync the request and response state machines. */
4795void http_resync_states(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4796{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4797 struct http_txn *txn = s->txn;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4798#ifdef DEBUG_FULL
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4799 int old_req_state = txn->req.msg_state;
4800 int old_res_state = txn->rsp.msg_state;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4801#endif
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4802
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4803 http_sync_req_state(s);
4804 while (1) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4805 if (!http_sync_res_state(s))
4806 break;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4807 if (!http_sync_req_state(s))
4808 break;
4809 }
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]4810
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4811 DPRINTF(stderr,"[%u] %s: stream=%p old=%s,%s cur=%s,%s "
4812 "req->analysers=0x%08x res->analysers=0x%08x\n",
4813 now_ms, __FUNCTION__, s,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]4814 h1_msg_state_str(old_req_state), h1_msg_state_str(old_res_state),
4815 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]4816 s->req.analysers, s->res.analysers);
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4817
4818
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4819 /* OK, both state machines agree on a compatible state.
4820 * There are a few cases we're interested in :
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4821 * - HTTP_MSG_CLOSED on both sides means we've reached the end in both
4822 * directions, so let's simply disable both analysers.
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4823 * - HTTP_MSG_CLOSED on the response only or HTTP_MSG_ERROR on either
4824 * means we must abort the request.
4825 * - HTTP_MSG_TUNNEL on either means we have to disable analyser on
4826 * corresponding channel.
4827 * - HTTP_MSG_DONE or HTTP_MSG_CLOSED on the request and HTTP_MSG_DONE
4828 * on the response with server-close mode means we've completed one
4829 * request and we must re-initialize the server connection.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4830 */
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4831 if (txn->req.msg_state == HTTP_MSG_CLOSED &&
4832 txn->rsp.msg_state == HTTP_MSG_CLOSED) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4833 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4834 channel_auto_close(&s->req);
4835 channel_auto_read(&s->req);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4836 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4837 channel_auto_close(&s->res);
4838 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4839 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4840 else if (txn->rsp.msg_state == HTTP_MSG_CLOSED ||
4841 txn->rsp.msg_state == HTTP_MSG_ERROR ||
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4842 txn->req.msg_state == HTTP_MSG_ERROR) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4843 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4844 channel_auto_close(&s->res);
4845 channel_auto_read(&s->res);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4846 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4847 channel_abort(&s->req);
4848 channel_auto_close(&s->req);
4849 channel_auto_read(&s->req);
4850 channel_truncate(&s->req);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4851 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4852 else if (txn->req.msg_state == HTTP_MSG_TUNNEL ||
4853 txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4854 if (txn->req.msg_state == HTTP_MSG_TUNNEL) {
4855 s->req.analysers &= AN_REQ_FLT_END;
4856 if (HAS_REQ_DATA_FILTERS(s))
4857 s->req.analysers |= AN_REQ_FLT_XFER_DATA;
4858 }
4859 if (txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4860 s->res.analysers &= AN_RES_FLT_END;
4861 if (HAS_RSP_DATA_FILTERS(s))
4862 s->res.analysers |= AN_RES_FLT_XFER_DATA;
4863 }
4864 channel_auto_close(&s->req);
4865 channel_auto_read(&s->req);
4866 channel_auto_close(&s->res);
4867 channel_auto_read(&s->res);
4868 }
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4869 else if ((txn->req.msg_state == HTTP_MSG_DONE ||
4870 txn->req.msg_state == HTTP_MSG_CLOSED) &&
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4871 txn->rsp.msg_state == HTTP_MSG_DONE &&
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4872 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
4873 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
4874 /* server-close/keep-alive: terminate this transaction,
4875 * possibly killing the server connection and reinitialize
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4876 * a fresh-new transaction, but only once we're sure there's
4877 * enough room in the request and response buffer to process
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]4878 * another request. They must not hold any pending output data
4879 * and the response buffer must realigned
4880 * (realign is done is http_end_txn_clean_session).
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4881 */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]4882 if (co_data(&s->req))
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4883 s->req.flags |= CF_WAKE_WRITE;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]4884 else if (co_data(&s->res))
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4885 s->res.flags |= CF_WAKE_WRITE;
Christopher Fauleta81ff602017-07-18 22:01:05 +0200[diff] [blame]4886 else {
4887 s->req.analysers = AN_REQ_FLT_END;
4888 s->res.analysers = AN_RES_FLT_END;
4889 txn->flags |= TX_WAIT_CLEANUP;
4890 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4891 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4892}
4893
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4894/* This function is an analyser which forwards request body (including chunk
4895 * sizes if any). It is called as soon as we must forward, even if we forward
4896 * zero byte. The only situation where it must not be called is when we're in
4897 * tunnel mode and we want to forward till the close. It's used both to forward
4898 * remaining data and to resync after end of body. It expects the msg_state to
4899 * 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]4900 * 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]4901 * When in MSG_DATA or MSG_TRAILERS, it will automatically forward chunk_len
Willy Tarreauc24715e2014-04-17 15:21:20 +0200[diff] [blame]4902 * bytes of pending data + the headers if not already done.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4903 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4904int http_request_forward_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4905{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4906 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4907 struct http_txn *txn = s->txn;
4908 struct http_msg *msg = &s->txn->req;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]4909 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4910
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]4911 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]4912 now_ms, __FUNCTION__,
4913 s,
4914 req,
4915 req->rex, req->wex,
4916 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]4917 ci_data(req),
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4918 req->analysers);
4919
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4920 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
4921 return 0;
4922
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4923 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]4924 ((req->flags & CF_SHUTW) && (req->to_forward || co_data(req)))) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4925 /* Output closed while we were sending data. We must abort and
4926 * wake the other side up.
4927 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4928 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4929 msg->msg_state = HTTP_MSG_ERROR;
4930 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]4931 return 1;
4932 }
4933
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4934 /* Note that we don't have to send 100-continue back because we don't
4935 * need the data to complete our job, and it's up to the server to
4936 * decide whether to return 100, 417 or anything else in return of
4937 * an "Expect: 100-continue" header.
4938 */
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4939 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4940 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
4941 ? HTTP_MSG_CHUNK_SIZE
4942 : HTTP_MSG_DATA);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4943
4944 /* TODO/filters: when http-buffer-request option is set or if a
4945 * rule on url_param exists, the first chunk size could be
4946 * already parsed. In that case, msg->next is after the chunk
4947 * size (including the CRLF after the size). So this case should
4948 * be handled to */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4949 }
4950
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4951 /* Some post-connect processing might want us to refrain from starting to
4952 * forward data. Currently, the only reason for this is "balance url_param"
4953 * whichs need to parse/process the request after we've enabled forwarding.
4954 */
4955 if (unlikely(msg->flags & HTTP_MSGF_WAIT_CONN)) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4956 if (!(s->res.flags & CF_READ_ATTACHED)) {
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4957 channel_auto_connect(req);
Willy Tarreau644c1012014-04-30 18:11:11 +0200[diff] [blame]4958 req->flags |= CF_WAKE_CONNECT;
Willy Tarreauba20dfc2018-05-16 11:35:05 +0200[diff] [blame]4959 channel_dont_close(req); /* don't fail on early shutr */
4960 goto waiting;
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4961 }
4962 msg->flags &= ~HTTP_MSGF_WAIT_CONN;
4963 }
4964
Willy Tarreau80a92c02014-03-12 10:41:13 +0100[diff] [blame]4965 /* in most states, we should abort in case of early close */
4966 channel_auto_close(req);
4967
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4968 if (req->to_forward) {
4969 /* We can't process the buffer's contents yet */
4970 req->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4971 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4972 }
4973
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4974 if (msg->msg_state < HTTP_MSG_DONE) {
4975 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
4976 ? http_msg_forward_chunked_body(s, msg)
4977 : http_msg_forward_body(s, msg));
4978 if (!ret)
4979 goto missing_data_or_waiting;
4980 if (ret < 0)
4981 goto return_bad_req;
4982 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4983
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4984 /* other states, DONE...TUNNEL */
4985 /* we don't want to forward closes on DONE except in tunnel mode. */
4986 if ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
4987 channel_dont_close(req);
Willy Tarreau5c54c712010-07-17 08:02:58 +0200[diff] [blame]4988
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4989 http_resync_states(s);
4990 if (!(req->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4991 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
4992 if (req->flags & CF_SHUTW) {
4993 /* request errors are most likely due to the
4994 * server aborting the transfer. */
4995 goto aborted_xfer;
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4996 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4997 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]4998 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]4999 goto return_bad_req;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5000 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5001 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5002 }
5003
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5004 /* If "option abortonclose" is set on the backend, we want to monitor
5005 * the client's connection and forward any shutdown notification to the
5006 * server, which will decide whether to close or to go on processing the
5007 * request. We only do that in tunnel mode, and not in other modes since
5008 * it can be abused to exhaust source ports. */
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]5009 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]5010 channel_auto_read(req);
5011 if ((req->flags & (CF_SHUTR|CF_READ_NULL)) &&
5012 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN))
5013 s->si[1].flags |= SI_FL_NOLINGER;
5014 channel_auto_close(req);
5015 }
5016 else if (s->txn->meth == HTTP_METH_POST) {
5017 /* POST requests may require to read extra CRLF sent by broken
5018 * browsers and which could cause an RST to be sent upon close
5019 * on some systems (eg: Linux). */
5020 channel_auto_read(req);
5021 }
5022 return 0;
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]5023
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5024 missing_data_or_waiting:
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5025 /* stop waiting for data if the input is closed before the end */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]5026 if (msg->msg_state < HTTP_MSG_ENDING && req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5027 if (!(s->flags & SF_ERR_MASK))
5028 s->flags |= SF_ERR_CLICL;
5029 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5030 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5031 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5032 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5033 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5034 }
5035
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5036 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
5037 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5038 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5039 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5040
5041 goto return_bad_req_stats_ok;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]5042 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5043
Willy Tarreauba20dfc2018-05-16 11:35:05 +0200[diff] [blame]5044 waiting:
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5045 /* waiting for the last bits to leave the buffer */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5046 if (req->flags & CF_SHUTW)
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5047 goto aborted_xfer;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5048
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]5049 /* When TE: chunked is used, we need to get there again to parse remaining
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5050 * 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]5051 * And when content-length is used, we never want to let the possible
5052 * shutdown be forwarded to the other side, as the state machine will
5053 * take care of it once the client responds. It's also important to
5054 * prevent TIME_WAITs from accumulating on the backend side, and for
5055 * HTTP/2 where the last frame comes with a shutdown.
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]5056 */
Willy Tarreauff47b3f2017-12-29 16:30:31 +0100[diff] [blame]5057 if (msg->flags & (HTTP_MSGF_TE_CHNK|HTTP_MSGF_CNT_LEN))
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5058 channel_dont_close(req);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]5059
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5060 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5061 * 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]5062 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]5063 * modes are already handled by the stream sock layer. We must not do
5064 * this in content-length mode because it could present the MSG_MORE
5065 * flag with the last block of forwarded data, which would cause an
5066 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5067 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5068 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5069 req->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5070
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5071 return 0;
5072
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5073 return_bad_req: /* let's centralize all bad requests */
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5074 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5075 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]5076 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]5077
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5078 return_bad_req_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5079 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5080 txn->req.msg_state = HTTP_MSG_ERROR;
5081 if (txn->status) {
5082 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5083 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5084 } else {
5085 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5086 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5087 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5088 req->analysers &= AN_REQ_FLT_END;
5089 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]5090
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5091 if (!(s->flags & SF_ERR_MASK))
5092 s->flags |= SF_ERR_PRXCOND;
5093 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5094 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5095 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5096 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5097 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5098 }
5099 return 0;
5100
5101 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5102 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5103 txn->req.msg_state = HTTP_MSG_ERROR;
5104 if (txn->status) {
5105 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5106 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5107 } else {
5108 txn->status = 502;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5109 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5110 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5111 req->analysers &= AN_REQ_FLT_END;
5112 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]5113
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5114 HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
5115 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5116 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5117 HA_ATOMIC_ADD(&objt_server(s->target)->counters.srv_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5118
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5119 if (!(s->flags & SF_ERR_MASK))
5120 s->flags |= SF_ERR_SRVCL;
5121 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5122 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5123 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5124 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5125 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5126 }
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5127 return 0;
5128}
5129
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5130/* This stream analyser waits for a complete HTTP response. It returns 1 if the
5131 * processing can continue on next analysers, or zero if it either needs more
5132 * data or wants to immediately abort the response (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5133 * 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]5134 * when it has nothing left to do, and may remove any analyser when it wants to
5135 * abort.
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5136 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5137int http_wait_for_response(struct stream *s, struct channel *rep, int an_bit)
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5138{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5139 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5140 struct http_txn *txn = s->txn;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5141 struct http_msg *msg = &txn->rsp;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5142 struct hdr_ctx ctx;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5143 int use_close_only;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5144 int cur_idx;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5145 int n;
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]5146
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]5147 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]5148 now_ms, __FUNCTION__,
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5149 s,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5150 rep,
5151 rep->rex, rep->wex,
5152 rep->flags,
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5153 ci_data(rep),
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5154 rep->analysers);
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200[diff] [blame]5155
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5156 /*
5157 * Now parse the partial (or complete) lines.
5158 * We will check the response syntax, and also join multi-line
5159 * headers. An index of all the lines will be elaborated while
5160 * parsing.
5161 *
5162 * For the parsing, we use a 28 states FSM.
5163 *
5164 * Here is the information we currently have :
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5165 * ci_head(rep) = beginning of response
5166 * ci_head(rep) + msg->eoh = end of processed headers / start of current one
5167 * ci_tail(rep) = end of input data
5168 * msg->eol = end of current header or line (LF or CRLF)
5169 * msg->next = first non-visited byte
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5170 */
5171
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5172 next_one:
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5173 /* There's a protected area at the end of the buffer for rewriting
5174 * purposes. We don't want to start to parse the request if the
5175 * protected area is affected, because we may have to move processed
5176 * data later, which is much more complicated.
5177 */
Willy Tarreaud760eec2018-07-10 09:50:25 +0200[diff] [blame]5178 if (c_data(rep) && msg->msg_state < HTTP_MSG_ERROR) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]5179 if (unlikely(!channel_is_rewritable(rep))) {
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5180 /* some data has still not left the buffer, wake us once that's done */
5181 if (rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
5182 goto abort_response;
5183 channel_dont_close(rep);
5184 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]5185 rep->flags |= CF_WAKE_WRITE;
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5186 return 0;
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5187 }
5188
Willy Tarreau188e2302018-06-15 11:11:53 +0200[diff] [blame]5189 if (unlikely(ci_tail(rep) < c_ptr(rep, msg->next) ||
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]5190 ci_tail(rep) > b_wrap(&rep->buf) - global.tune.maxrewrite))
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]5191 channel_slow_realign(rep, trash.area);
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5192
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5193 if (likely(msg->next < ci_data(rep)))
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]5194 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5195 }
5196
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5197 /* 1: we might have to print this header in debug mode */
5198 if (unlikely((global.mode & MODE_DEBUG) &&
5199 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]5200 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5201 char *eol, *sol;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5202
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5203 sol = ci_head(rep);
5204 eol = sol + (msg->sl.st.l ? msg->sl.st.l : ci_data(rep));
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5205 debug_hdr("srvrep", s, sol, eol);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5206
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5207 sol += hdr_idx_first_pos(&txn->hdr_idx);
5208 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5209
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5210 while (cur_idx) {
5211 eol = sol + txn->hdr_idx.v[cur_idx].len;
5212 debug_hdr("srvhdr", s, sol, eol);
5213 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
5214 cur_idx = txn->hdr_idx.v[cur_idx].next;
5215 }
5216 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5217
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5218 /*
5219 * Now we quickly check if we have found a full valid response.
5220 * If not so, we check the FD and buffer states before leaving.
5221 * A full response is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5222 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5223 * responses are checked first.
5224 *
5225 * Depending on whether the client is still there or not, we
5226 * may send an error response back or not. Note that normally
5227 * we should only check for HTTP status there, and check I/O
5228 * errors somewhere else.
5229 */
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5230
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5231 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5232 /* Invalid response */
5233 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
5234 /* we detected a parsing error. We want to archive this response
5235 * in the dedicated proxy area for later troubleshooting.
5236 */
5237 hdr_response_bad:
5238 if (msg->msg_state == HTTP_MSG_ERROR || msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5239 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]5240
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5241 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5242 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5243 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5244 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5245 }
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]5246 abort_response:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5247 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5248 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5249 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5250 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5251 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5252 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5253
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5254 if (!(s->flags & SF_ERR_MASK))
5255 s->flags |= SF_ERR_PRXCOND;
5256 if (!(s->flags & SF_FINST_MASK))
5257 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5258
5259 return 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5260 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5261
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5262 /* too large response does not fit in buffer. */
Willy Tarreau23752332018-06-15 14:54:53 +0200[diff] [blame]5263 else if (channel_full(rep, global.tune.maxrewrite)) {
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]5264 if (msg->err_pos < 0)
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5265 msg->err_pos = ci_data(rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5266 goto hdr_response_bad;
5267 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5268
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5269 /* read error */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5270 else if (rep->flags & CF_READ_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5271 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5272 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]5273 else if (txn->flags & TX_NOT_FIRST)
5274 goto abort_keep_alive;
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5275
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5276 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5277 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5278 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5279 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_ERROR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5280 }
Willy Tarreau461f6622008-08-15 23:43:19 +0200[diff] [blame]5281
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5282 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5283 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5284 txn->status = 502;
Olivier Houchard522eea72017-11-03 16:27:47 +0100[diff] [blame]5285
5286 /* Check to see if the server refused the early data.
5287 * If so, just send a 425
5288 */
5289 if (objt_cs(s->si[1].end)) {
5290 struct connection *conn = objt_cs(s->si[1].end)->conn;
5291
5292 if (conn->err_code == CO_ER_SSL_EARLY_FAILED)
5293 txn->status = 425;
5294 }
5295
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5296 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5297 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5298 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau816b9792009-09-15 21:25:21 +0200[diff] [blame]5299
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5300 if (!(s->flags & SF_ERR_MASK))
5301 s->flags |= SF_ERR_SRVCL;
5302 if (!(s->flags & SF_FINST_MASK))
5303 s->flags |= SF_FINST_H;
Willy Tarreaucebf57e2008-08-15 18:16:37 +0200[diff] [blame]5304 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5305 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5306
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +0200[diff] [blame]5307 /* read timeout : return a 504 to the client. */
5308 else if (rep->flags & CF_READ_TIMEOUT) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5309 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5310 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]5311
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5312 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5313 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5314 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5315 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_TIMEOUT);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5316 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5317
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5318 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5319 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5320 txn->status = 504;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5321 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5322 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5323 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5324
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5325 if (!(s->flags & SF_ERR_MASK))
5326 s->flags |= SF_ERR_SRVTO;
5327 if (!(s->flags & SF_FINST_MASK))
5328 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5329 return 0;
5330 }
Willy Tarreaua7c52762008-08-16 18:40:18 +0200[diff] [blame]5331
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5332 /* client abort with an abortonclose */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5333 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]5334 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
5335 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5336 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5337 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5338
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5339 rep->analysers &= AN_RES_FLT_END;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5340 channel_auto_close(rep);
5341
5342 txn->status = 400;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5343 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5344 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5345
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5346 if (!(s->flags & SF_ERR_MASK))
5347 s->flags |= SF_ERR_CLICL;
5348 if (!(s->flags & SF_FINST_MASK))
5349 s->flags |= SF_FINST_H;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5350
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5351 /* process_stream() will take care of the error */
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5352 return 0;
5353 }
5354
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5355 /* close from server, capture the response if the server has started to respond */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5356 else if (rep->flags & CF_SHUTR) {
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5357 if (msg->msg_state >= HTTP_MSG_RPVER || msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5358 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]5359 else if (txn->flags & TX_NOT_FIRST)
5360 goto abort_keep_alive;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5361
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5362 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5363 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5364 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5365 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_BROKEN_PIPE);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5366 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5367
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5368 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5369 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5370 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5371 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5372 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5373 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5374
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5375 if (!(s->flags & SF_ERR_MASK))
5376 s->flags |= SF_ERR_SRVCL;
5377 if (!(s->flags & SF_FINST_MASK))
5378 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5379 return 0;
5380 }
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5381
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5382 /* write error to client (we don't send any message then) */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5383 else if (rep->flags & CF_WRITE_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5384 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5385 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]5386 else if (txn->flags & TX_NOT_FIRST)
5387 goto abort_keep_alive;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5388
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5389 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5390 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5391 channel_auto_close(rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5392
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5393 if (!(s->flags & SF_ERR_MASK))
5394 s->flags |= SF_ERR_CLICL;
5395 if (!(s->flags & SF_FINST_MASK))
5396 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5397
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5398 /* process_stream() will take care of the error */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5399 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5400 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5401
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5402 channel_dont_close(rep);
Willy Tarreau3f3997e2013-12-15 15:21:32 +0100[diff] [blame]5403 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5404 return 0;
5405 }
5406
5407 /* More interesting part now : we know that we have a complete
5408 * response which at least looks like HTTP. We have an indicator
5409 * of each header's length, so we can parse them quickly.
5410 */
5411
5412 if (unlikely(msg->err_pos >= 0))
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5413 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]5414
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5415 /*
5416 * 1: get the status code
5417 */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5418 n = ci_head(rep)[msg->sl.st.c] - '0';
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5419 if (n < 1 || n > 5)
5420 n = 0;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5421 /* when the client triggers a 4xx from the server, it's most often due
5422 * to a missing object or permission. These events should be tracked
5423 * because if they happen often, it may indicate a brute force or a
5424 * vulnerability scan.
5425 */
5426 if (n == 4)
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5427 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5428
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5429 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5430 HA_ATOMIC_ADD(&objt_server(s->target)->counters.p.http.rsp[n], 1);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5431
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]5432 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
5433 * exactly one digit "." one digit. This check may be disabled using
5434 * option accept-invalid-http-response.
5435 */
5436 if (!(s->be->options2 & PR_O2_RSPBUG_OK)) {
5437 if (msg->sl.st.v_l != 8) {
5438 msg->err_pos = 0;
5439 goto hdr_response_bad;
5440 }
5441
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5442 if (ci_head(rep)[4] != '/' ||
5443 !isdigit((unsigned char)ci_head(rep)[5]) ||
5444 ci_head(rep)[6] != '.' ||
5445 !isdigit((unsigned char)ci_head(rep)[7])) {
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]5446 msg->err_pos = 4;
5447 goto hdr_response_bad;
5448 }
5449 }
5450
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5451 /* check if the response is HTTP/1.1 or above */
5452 if ((msg->sl.st.v_l == 8) &&
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5453 ((ci_head(rep)[5] > '1') ||
5454 ((ci_head(rep)[5] == '1') && (ci_head(rep)[7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5455 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5456
5457 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]5458 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]5459
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5460 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5461 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5462
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5463 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]5464
Willy Tarreau39650402010-03-15 19:44:39 +0100[diff] [blame]5465 /* Adjust server's health based on status code. Note: status codes 501
5466 * and 505 are triggered on demand by client request, so we must not
5467 * count them as server failures.
5468 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5469 if (objt_server(s->target)) {
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5470 if (txn->status >= 100 && (txn->status < 500 || txn->status == 501 || txn->status == 505))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5471 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_OK);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5472 else
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5473 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_STS);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5474 }
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5475
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5476 /*
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5477 * We may be facing a 100-continue response, or any other informational
5478 * 1xx response which is non-final, in which case this is not the right
5479 * response, and we're waiting for the next one. Let's allow this response
5480 * to go to the client and wait for the next one. There's an exception for
5481 * 101 which is used later in the code to switch protocols.
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5482 */
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5483 if (txn->status < 200 &&
5484 (txn->status == 100 || txn->status >= 102)) {
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5485 hdr_idx_init(&txn->hdr_idx);
5486 msg->next -= channel_forward(rep, msg->next);
5487 msg->msg_state = HTTP_MSG_RPBEFORE;
5488 txn->status = 0;
5489 s->logs.t_data = -1; /* was not a response yet */
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5490 FLT_STRM_CB(s, flt_http_reset(s, msg));
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5491 goto next_one;
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5492 }
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5493
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5494 /*
5495 * 2: check for cacheability.
5496 */
5497
5498 switch (txn->status) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5499 case 200:
5500 case 203:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5501 case 204:
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5502 case 206:
5503 case 300:
5504 case 301:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5505 case 404:
5506 case 405:
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5507 case 410:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5508 case 414:
5509 case 501:
Willy Tarreau83ece462017-12-21 15:13:09 +0100[diff] [blame]5510 break;
5511 default:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5512 /* RFC7231#6.1:
5513 * Responses with status codes that are defined as
5514 * cacheable by default (e.g., 200, 203, 204, 206,
5515 * 300, 301, 404, 405, 410, 414, and 501 in this
5516 * specification) can be reused by a cache with
5517 * heuristic expiration unless otherwise indicated
5518 * by the method definition or explicit cache
5519 * controls [RFC7234]; all other status codes are
5520 * not cacheable by default.
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5521 */
Willy Tarreau83ece462017-12-21 15:13:09 +0100[diff] [blame]5522 txn->flags &= ~(TX_CACHEABLE | TX_CACHE_COOK);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5523 break;
5524 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5525
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5526 /*
5527 * 3: we may need to capture headers
5528 */
5529 s->logs.logwait &= ~LW_RESP;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5530 if (unlikely((s->logs.logwait & LW_RSPHDR) && s->res_cap))
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5531 capture_headers(ci_head(rep), &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5532 s->res_cap, sess->fe->rsp_cap);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5533
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5534 /* 4: determine the transfer-length according to RFC2616 #4.4, updated
5535 * by RFC7230#3.3.3 :
5536 *
5537 * The length of a message body is determined by one of the following
5538 * (in order of precedence):
5539 *
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5540 * 1. Any 2xx (Successful) response to a CONNECT request implies that
5541 * the connection will become a tunnel immediately after the empty
5542 * line that concludes the header fields. A client MUST ignore
5543 * any Content-Length or Transfer-Encoding header fields received
5544 * in such a message. Any 101 response (Switching Protocols) is
5545 * managed in the same manner.
5546 *
5547 * 2. Any response to a HEAD request and any response with a 1xx
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5548 * (Informational), 204 (No Content), or 304 (Not Modified) status
5549 * code is always terminated by the first empty line after the
5550 * header fields, regardless of the header fields present in the
5551 * message, and thus cannot contain a message body.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5552 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5553 * 3. If a Transfer-Encoding header field is present and the chunked
5554 * transfer coding (Section 4.1) is the final encoding, the message
5555 * body length is determined by reading and decoding the chunked
5556 * data until the transfer coding indicates the data is complete.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5557 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5558 * If a Transfer-Encoding header field is present in a response and
5559 * the chunked transfer coding is not the final encoding, the
5560 * message body length is determined by reading the connection until
5561 * it is closed by the server. If a Transfer-Encoding header field
5562 * is present in a request and the chunked transfer coding is not
5563 * the final encoding, the message body length cannot be determined
5564 * reliably; the server MUST respond with the 400 (Bad Request)
5565 * status code and then close the connection.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5566 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5567 * If a message is received with both a Transfer-Encoding and a
5568 * Content-Length header field, the Transfer-Encoding overrides the
5569 * Content-Length. Such a message might indicate an attempt to
5570 * perform request smuggling (Section 9.5) or response splitting
5571 * (Section 9.4) and ought to be handled as an error. A sender MUST
5572 * remove the received Content-Length field prior to forwarding such
5573 * a message downstream.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5574 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5575 * 4. If a message is received without Transfer-Encoding and with
5576 * either multiple Content-Length header fields having differing
5577 * field-values or a single Content-Length header field having an
5578 * invalid value, then the message framing is invalid and the
5579 * recipient MUST treat it as an unrecoverable error. If this is a
5580 * request message, the server MUST respond with a 400 (Bad Request)
5581 * status code and then close the connection. If this is a response
5582 * message received by a proxy, the proxy MUST close the connection
5583 * to the server, discard the received response, and send a 502 (Bad
5584 * Gateway) response to the client. If this is a response message
5585 * received by a user agent, the user agent MUST close the
5586 * connection to the server and discard the received response.
5587 *
5588 * 5. If a valid Content-Length header field is present without
5589 * Transfer-Encoding, its decimal value defines the expected message
5590 * body length in octets. If the sender closes the connection or
5591 * the recipient times out before the indicated number of octets are
5592 * received, the recipient MUST consider the message to be
5593 * incomplete and close the connection.
5594 *
5595 * 6. If this is a request message and none of the above are true, then
5596 * the message body length is zero (no message body is present).
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5597 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5598 * 7. Otherwise, this is a response message without a declared message
5599 * body length, so the message body length is determined by the
5600 * number of octets received prior to the server closing the
5601 * connection.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5602 */
5603
5604 /* Skip parsing if no content length is possible. The response flags
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5605 * remain 0 as well as the chunk_len, which may or may not mirror
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5606 * the real header value, and we note that we know the response's length.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5607 * FIXME: should we parse anyway and return an error on chunked encoding ?
5608 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5609 if (unlikely((txn->meth == HTTP_METH_CONNECT && txn->status == 200) ||
5610 txn->status == 101)) {
5611 /* Either we've established an explicit tunnel, or we're
5612 * switching the protocol. In both cases, we're very unlikely
5613 * to understand the next protocols. We have to switch to tunnel
5614 * mode, so that we transfer the request and responses then let
5615 * this protocol pass unmodified. When we later implement specific
5616 * parsers for such protocols, we'll want to check the Upgrade
5617 * header which contains information about that protocol for
5618 * responses with status 101 (eg: see RFC2817 about TLS).
5619 */
5620 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_TUN;
5621 msg->flags |= HTTP_MSGF_XFER_LEN;
5622 goto end;
5623 }
5624
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5625 if (txn->meth == HTTP_METH_HEAD ||
5626 (txn->status >= 100 && txn->status < 200) ||
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5627 txn->status == 204 || txn->status == 304) {
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5628 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5629 goto skip_content_length;
5630 }
5631
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5632 use_close_only = 0;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5633 ctx.idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5634 while (http_find_header2("Transfer-Encoding", 17, ci_head(rep), &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5635 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5636 msg->flags |= (HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
5637 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5638 /* bad transfer-encoding (chunked followed by something else) */
5639 use_close_only = 1;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5640 msg->flags &= ~(HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5641 break;
5642 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5643 }
5644
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5645 /* Chunked responses must have their content-length removed */
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5646 ctx.idx = 0;
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]5647 if (use_close_only || (msg->flags & HTTP_MSGF_TE_CHNK)) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5648 while (http_find_header2("Content-Length", 14, ci_head(rep), &txn->hdr_idx, &ctx))
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5649 http_remove_header2(msg, &txn->hdr_idx, &ctx);
5650 }
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5651 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]5652 signed long long cl;
5653
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5654 if (!ctx.vlen) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5655 msg->err_pos = ctx.line + ctx.val - ci_head(rep);
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5656 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5657 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5658
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5659 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5660 msg->err_pos = ctx.line + ctx.val - ci_head(rep);
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5661 goto hdr_response_bad; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5662 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5663
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5664 if (cl < 0) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5665 msg->err_pos = ctx.line + ctx.val - ci_head(rep);
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5666 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5667 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5668
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5669 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5670 msg->err_pos = ctx.line + ctx.val - ci_head(rep);
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5671 goto hdr_response_bad; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5672 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5673
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5674 msg->flags |= HTTP_MSGF_CNT_LEN | HTTP_MSGF_XFER_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5675 msg->body_len = msg->chunk_len = cl;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5676 }
5677
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5678 skip_content_length:
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5679 /* Now we have to check if we need to modify the Connection header.
5680 * This is more difficult on the response than it is on the request,
5681 * because we can have two different HTTP versions and we don't know
5682 * how the client will interprete a response. For instance, let's say
5683 * that the client sends a keep-alive request in HTTP/1.0 and gets an
5684 * HTTP/1.1 response without any header. Maybe it will bound itself to
5685 * HTTP/1.0 because it only knows about it, and will consider the lack
5686 * of header as a close, or maybe it knows HTTP/1.1 and can consider
5687 * the lack of header as a keep-alive. Thus we will use two flags
5688 * indicating how a request MAY be understood by the client. In case
5689 * of multiple possibilities, we'll fix the header to be explicit. If
5690 * ambiguous cases such as both close and keepalive are seen, then we
5691 * will fall back to explicit close. Note that we won't take risks with
5692 * HTTP/1.0 clients which may not necessarily understand keep-alive.
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5693 * See doc/internals/connection-header.txt for the complete matrix.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5694 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5695 if ((txn->status >= 200) && !(txn->flags & TX_HDR_CONN_PRS) &&
5696 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN ||
5697 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
5698 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5699 int to_del = 0;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5700
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5701 /* this situation happens when combining pretend-keepalive with httpclose. */
5702 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5703 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5704 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5705 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
5706
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5707 /* on unknown transfer length, we must close */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5708 if (!(msg->flags & HTTP_MSGF_XFER_LEN) &&
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5709 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
5710 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5711
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5712 /* now adjust header transformations depending on current state */
5713 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN ||
5714 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
5715 to_del |= 2; /* remove "keep-alive" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5716 if (!(msg->flags & HTTP_MSGF_VER_11))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5717 to_del |= 1; /* remove "close" for HTTP/1.0 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5718 }
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5719 else { /* SCL / KAL */
5720 to_del |= 1; /* remove "close" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5721 if (txn->req.flags & msg->flags & HTTP_MSGF_VER_11)
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5722 to_del |= 2; /* remove "keep-alive" on pure 1.1 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5723 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5724
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5725 /* Parse and remove some headers from the connection header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]5726 http_parse_connection_header(txn, msg, to_del);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5727
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5728 /* Some keep-alive responses are converted to Server-close if
5729 * the server wants to close.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5730 */
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5731 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL) {
5732 if ((txn->flags & TX_HDR_CONN_CLO) ||
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5733 (!(txn->flags & TX_HDR_CONN_KAL) && !(msg->flags & HTTP_MSGF_VER_11)))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5734 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_SCL;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]5735 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5736 }
5737
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5738 end:
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5739 /* we want to have the response time before we start processing it */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5740 s->logs.t_data = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5741
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5742 /* end of job, return OK */
5743 rep->analysers &= ~an_bit;
5744 rep->analyse_exp = TICK_ETERNITY;
5745 channel_auto_close(rep);
5746 return 1;
5747
5748 abort_keep_alive:
5749 /* A keep-alive request to the server failed on a network error.
5750 * The client is required to retry. We need to close without returning
5751 * any other information so that the client retries.
5752 */
5753 txn->status = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5754 rep->analysers &= AN_RES_FLT_END;
5755 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5756 channel_auto_close(rep);
5757 s->logs.logwait = 0;
5758 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5759 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5760 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5761 http_reply_and_close(s, txn->status, NULL);
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5762 return 0;
5763}
5764
5765/* This function performs all the processing enabled for the current response.
5766 * It normally returns 1 unless it wants to break. It relies on buffers flags,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5767 * and updates s->res.analysers. It might make sense to explode it into several
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5768 * other functions. It works like process_request (see indications above).
5769 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5770int 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]5771{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5772 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5773 struct http_txn *txn = s->txn;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5774 struct http_msg *msg = &txn->rsp;
5775 struct proxy *cur_proxy;
5776 struct cond_wordlist *wl;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]5777 enum rule_result ret = HTTP_RULE_RES_CONT;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5778
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]5779 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]5780 now_ms, __FUNCTION__,
5781 s,
5782 rep,
5783 rep->rex, rep->wex,
5784 rep->flags,
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]5785 ci_data(rep),
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5786 rep->analysers);
5787
5788 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) /* we need more data */
5789 return 0;
5790
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5791 /* The stats applet needs to adjust the Connection header but we don't
5792 * apply any filter there.
5793 */
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5794 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
5795 rep->analysers &= ~an_bit;
5796 rep->analyse_exp = TICK_ETERNITY;
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5797 goto skip_filters;
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5798 }
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5799
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5800 /*
5801 * We will have to evaluate the filters.
5802 * As opposed to version 1.2, now they will be evaluated in the
5803 * filters order and not in the header order. This means that
5804 * each filter has to be validated among all headers.
5805 *
5806 * Filters are tried with ->be first, then with ->fe if it is
5807 * different from ->be.
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5808 *
5809 * Maybe we are in resume condiion. In this case I choose the
5810 * "struct proxy" which contains the rule list matching the resume
5811 * pointer. If none of theses "struct proxy" match, I initialise
5812 * the process with the first one.
5813 *
5814 * In fact, I check only correspondance betwwen the current list
5815 * pointer and the ->fe rule list. If it doesn't match, I initialize
5816 * the loop with the ->be.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5817 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5818 if (s->current_rule_list == &sess->fe->http_res_rules)
5819 cur_proxy = sess->fe;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5820 else
5821 cur_proxy = s->be;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5822 while (1) {
5823 struct proxy *rule_set = cur_proxy;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5824
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5825 /* evaluate http-response rules */
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5826 if (ret == HTTP_RULE_RES_CONT) {
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]5827 ret = http_res_get_intercept_rule(cur_proxy, &cur_proxy->http_res_rules, s);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]5828
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5829 if (ret == HTTP_RULE_RES_BADREQ)
5830 goto return_srv_prx_502;
5831
5832 if (ret == HTTP_RULE_RES_DONE) {
5833 rep->analysers &= ~an_bit;
5834 rep->analyse_exp = TICK_ETERNITY;
5835 return 1;
5836 }
5837 }
5838
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5839 /* we need to be called again. */
5840 if (ret == HTTP_RULE_RES_YIELD) {
5841 channel_dont_close(rep);
5842 return 0;
5843 }
5844
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5845 /* try headers filters */
5846 if (rule_set->rsp_exp != NULL) {
5847 if (apply_filters_to_response(s, rep, rule_set) < 0) {
5848 return_bad_resp:
5849 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5850 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5851 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_RSP);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5852 }
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5853 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5854 return_srv_prx_502:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5855 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5856 txn->status = 502;
5857 s->logs.t_data = -1; /* was not a valid response */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5858 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5859 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5860 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5861 if (!(s->flags & SF_ERR_MASK))
5862 s->flags |= SF_ERR_PRXCOND;
5863 if (!(s->flags & SF_FINST_MASK))
5864 s->flags |= SF_FINST_H;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5865 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5866 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5867 }
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5868
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5869 /* has the response been denied ? */
5870 if (txn->flags & TX_SVDENY) {
5871 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5872 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_secu, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5873
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5874 HA_ATOMIC_ADD(&s->be->be_counters.denied_resp, 1);
5875 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_resp, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5876 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]5877 HA_ATOMIC_ADD(&sess->listener->counters->denied_resp, 1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5878
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5879 goto return_srv_prx_502;
5880 }
Willy Tarreau0bbc3cf2006-10-15 14:26:02 +0200[diff] [blame]5881
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5882 /* add response headers from the rule sets in the same order */
5883 list_for_each_entry(wl, &rule_set->rsp_add, list) {
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5884 if (txn->status < 200 && txn->status != 101)
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5885 break;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5886 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]5887 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]5888 ret = acl_pass(ret);
5889 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
5890 ret = !ret;
5891 if (!ret)
5892 continue;
5893 }
5894 if (unlikely(http_header_add_tail(&txn->rsp, &txn->hdr_idx, wl->s) < 0))
5895 goto return_bad_resp;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5896 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5897
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5898 /* check whether we're already working on the frontend */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5899 if (cur_proxy == sess->fe)
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5900 break;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5901 cur_proxy = sess->fe;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5902 }
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5903
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5904 /* After this point, this anayzer can't return yield, so we can
5905 * remove the bit corresponding to this analyzer from the list.
5906 *
5907 * Note that the intermediate returns and goto found previously
5908 * reset the analyzers.
5909 */
5910 rep->analysers &= ~an_bit;
5911 rep->analyse_exp = TICK_ETERNITY;
5912
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5913 /* OK that's all we can do for 1xx responses */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5914 if (unlikely(txn->status < 200 && txn->status != 101))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5915 goto skip_header_mangling;
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5916
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5917 /*
5918 * Now check for a server cookie.
5919 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]5920 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]5921 manage_server_side_cookies(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5922
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5923 /*
5924 * Check for cache-control or pragma headers if required.
5925 */
Willy Tarreau12b32f22017-12-21 16:08:09 +0100[diff] [blame]5926 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]5927 check_response_for_cacheability(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5928
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5929 /*
5930 * Add server cookie in the response if needed
5931 */
5932 if (objt_server(s->target) && (s->be->ck_opts & PR_CK_INS) &&
5933 !((txn->flags & TX_SCK_FOUND) && (s->be->ck_opts & PR_CK_PSV)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5934 (!(s->flags & SF_DIRECT) ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5935 ((s->be->cookie_maxidle || txn->cookie_last_date) &&
5936 (!txn->cookie_last_date || (txn->cookie_last_date - date.tv_sec) < 0)) ||
5937 (s->be->cookie_maxlife && !txn->cookie_first_date) || // set the first_date
5938 (!s->be->cookie_maxlife && txn->cookie_first_date)) && // remove the first_date
5939 (!(s->be->ck_opts & PR_CK_POST) || (txn->meth == HTTP_METH_POST)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5940 !(s->flags & SF_IGNORE_PRST)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5941 /* the server is known, it's not the one the client requested, or the
5942 * cookie's last seen date needs to be refreshed. We have to
5943 * insert a set-cookie here, except if we want to insert only on POST
5944 * requests and this one isn't. Note that servers which don't have cookies
5945 * (eg: some backup servers) will return a full cookie removal request.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5946 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5947 if (!objt_server(s->target)->cookie) {
5948 chunk_printf(&trash,
5949 "Set-Cookie: %s=; Expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/",
5950 s->be->cookie_name);
5951 }
5952 else {
5953 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]5954
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5955 if (s->be->cookie_maxidle || s->be->cookie_maxlife) {
5956 /* emit last_date, which is mandatory */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]5957 trash.area[trash.data++] = COOKIE_DELIM_DATE;
5958 s30tob64((date.tv_sec+3) >> 2,
5959 trash.area + trash.data);
5960 trash.data += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5961
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5962 if (s->be->cookie_maxlife) {
5963 /* emit first_date, which is either the original one or
5964 * the current date.
5965 */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]5966 trash.area[trash.data++] = COOKIE_DELIM_DATE;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5967 s30tob64(txn->cookie_first_date ?
5968 txn->cookie_first_date >> 2 :
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]5969 (date.tv_sec+3) >> 2,
5970 trash.area + trash.data);
5971 trash.data += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5972 }
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5973 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5974 chunk_appendf(&trash, "; path=/");
5975 }
Willy Tarreau4992dd22012-05-31 21:02:17 +0200[diff] [blame]5976
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5977 if (s->be->cookie_domain)
5978 chunk_appendf(&trash, "; domain=%s", s->be->cookie_domain);
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5979
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5980 if (s->be->ck_opts & PR_CK_HTTPONLY)
5981 chunk_appendf(&trash, "; HttpOnly");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5982
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5983 if (s->be->ck_opts & PR_CK_SECURE)
5984 chunk_appendf(&trash, "; Secure");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5985
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]5986 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]5987 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5988
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5989 txn->flags &= ~TX_SCK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5990 if (objt_server(s->target)->cookie && (s->flags & SF_DIRECT))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5991 /* the server did not change, only the date was updated */
5992 txn->flags |= TX_SCK_UPDATED;
5993 else
5994 txn->flags |= TX_SCK_INSERTED;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5995
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5996 /* Here, we will tell an eventual cache on the client side that we don't
5997 * want it to cache this reply because HTTP/1.0 caches also cache cookies !
5998 * Some caches understand the correct form: 'no-cache="set-cookie"', but
5999 * others don't (eg: apache <= 1.3.26). So we use 'private' instead.
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6000 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6001 if ((s->be->ck_opts & PR_CK_NOC) && (txn->flags & TX_CACHEABLE)) {
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6002
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6003 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]6004
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6005 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx,
6006 "Cache-control: private", 22) < 0))
6007 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6008 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6009 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6010
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6011 /*
6012 * Check if result will be cacheable with a cookie.
6013 * We'll block the response if security checks have caught
6014 * nasty things such as a cacheable cookie.
6015 */
6016 if (((txn->flags & (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) ==
6017 (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) &&
6018 (s->be->options & PR_O_CHK_CACHE)) {
6019 /* we're in presence of a cacheable response containing
6020 * a set-cookie header. We'll block it as requested by
6021 * the 'checkcache' option, and send an alert.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6022 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6023 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6024 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_secu, 1);
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6025
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6026 HA_ATOMIC_ADD(&s->be->be_counters.denied_resp, 1);
6027 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_resp, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]6028 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]6029 HA_ATOMIC_ADD(&sess->listener->counters->denied_resp, 1);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6030
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]6031 ha_alert("Blocking cacheable cookie in response from instance %s, server %s.\n",
6032 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6033 send_log(s->be, LOG_ALERT,
6034 "Blocking cacheable cookie in response from instance %s, server %s.\n",
6035 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
6036 goto return_srv_prx_502;
6037 }
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]6038
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]6039 skip_filters:
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6040 /*
6041 * Adjust "Connection: close" or "Connection: keep-alive" if needed.
6042 * If an "Upgrade" token is found, the header is left untouched in order
6043 * 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]6044 * if anything but "Upgrade" is present in the Connection header. We don't
6045 * want to touch any 101 response either since it's switching to another
6046 * protocol.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6047 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]6048 if ((txn->status != 101) && !(txn->flags & TX_HDR_CONN_UPG) &&
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6049 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6050 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6051 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
6052 unsigned int want_flags = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6053
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6054 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6055 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
6056 /* we want a keep-alive response here. Keep-alive header
6057 * required if either side is not 1.1.
6058 */
6059 if (!(txn->req.flags & msg->flags & HTTP_MSGF_VER_11))
6060 want_flags |= TX_CON_KAL_SET;
6061 }
6062 else {
6063 /* we want a close response here. Close header required if
6064 * the server is 1.1, regardless of the client.
6065 */
6066 if (msg->flags & HTTP_MSGF_VER_11)
6067 want_flags |= TX_CON_CLO_SET;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6068 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6069
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6070 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
6071 http_change_connection_header(txn, msg, want_flags);
6072 }
6073
6074 skip_header_mangling:
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6075 /* Always enter in the body analyzer */
6076 rep->analysers &= ~AN_RES_FLT_XFER_DATA;
6077 rep->analysers |= AN_RES_HTTP_XFER_BODY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6078
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6079 /* if the user wants to log as soon as possible, without counting
6080 * bytes from the server, then this is the right moment. We have
6081 * to temporarily assign bytes_out to log what we currently have.
6082 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6083 if (!LIST_ISEMPTY(&sess->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6084 s->logs.t_close = s->logs.t_data; /* to get a valid end date */
6085 s->logs.bytes_out = txn->rsp.eoh;
6086 s->do_log(s);
6087 s->logs.bytes_out = 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6088 }
Willy Tarreaue3fa6e52010-01-04 22:57:43 +0100[diff] [blame]6089 return 1;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6090}
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6091
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6092/* This function is an analyser which forwards response body (including chunk
6093 * sizes if any). It is called as soon as we must forward, even if we forward
6094 * zero byte. The only situation where it must not be called is when we're in
6095 * tunnel mode and we want to forward till the close. It's used both to forward
6096 * remaining data and to resync after end of body. It expects the msg_state to
6097 * 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]6098 * 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]6099 *
6100 * It is capable of compressing response data both in content-length mode and
6101 * in chunked mode. The state machines follows different flows depending on
6102 * whether content-length and chunked modes are used, since there are no
6103 * trailers in content-length :
6104 *
6105 * chk-mode cl-mode
6106 * ,----- BODY -----.
6107 * / \
6108 * V size > 0 V chk-mode
6109 * .--> SIZE -------------> DATA -------------> CRLF
6110 * | | size == 0 | last byte |
6111 * | v final crlf v inspected |
6112 * | TRAILERS -----------> DONE |
6113 * | |
6114 * `----------------------------------------------'
6115 *
6116 * Compression only happens in the DATA state, and must be flushed in final
6117 * states (TRAILERS/DONE) or when leaving on missing data. Normal forwarding
6118 * is performed at once on final states for all bytes parsed, or when leaving
6119 * on missing data.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6120 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6121int http_response_forward_body(struct stream *s, struct channel *res, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6122{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6123 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6124 struct http_txn *txn = s->txn;
6125 struct http_msg *msg = &s->txn->rsp;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]6126 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6127
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]6128 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]6129 now_ms, __FUNCTION__,
6130 s,
6131 res,
6132 res->rex, res->wex,
6133 res->flags,
Christopher Faulet45073512018-07-20 10:16:29 +0200[diff] [blame]6134 ci_data(res),
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]6135 res->analysers);
6136
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6137 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
6138 return 0;
6139
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6140 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]6141 ((res->flags & CF_SHUTW) && (res->to_forward || co_data(res))) ||
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6142 !s->req.analysers) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6143 /* Output closed while we were sending data. We must abort and
6144 * wake the other side up.
6145 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6146 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6147 msg->msg_state = HTTP_MSG_ERROR;
6148 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]6149 return 1;
6150 }
6151
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6152 /* in most states, we should abort in case of early close */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6153 channel_auto_close(res);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]6154
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6155 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6156 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
6157 ? HTTP_MSG_CHUNK_SIZE
6158 : HTTP_MSG_DATA);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6159 }
6160
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6161 if (res->to_forward) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6162 /* We can't process the buffer's contents yet */
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6163 res->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6164 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6165 }
6166
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6167 if (msg->msg_state < HTTP_MSG_DONE) {
6168 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
6169 ? http_msg_forward_chunked_body(s, msg)
6170 : http_msg_forward_body(s, msg));
6171 if (!ret)
6172 goto missing_data_or_waiting;
6173 if (ret < 0)
6174 goto return_bad_res;
6175 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6176
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6177 /* other states, DONE...TUNNEL */
6178 /* for keep-alive we don't want to forward closes on DONE */
6179 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6180 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
6181 channel_dont_close(res);
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]6182
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]6183 http_resync_states(s);
6184 if (!(res->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6185 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
6186 if (res->flags & CF_SHUTW) {
6187 /* response errors are most likely due to the
6188 * client aborting the transfer. */
6189 goto aborted_xfer;
Willy Tarreau5523b322009-12-29 12:05:52 +0100[diff] [blame]6190 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6191 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6192 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]6193 goto return_bad_res;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6194 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6195 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6196 }
Willy Tarreauf51d03c2016-05-02 15:25:15 +0200[diff] [blame]6197 return 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6198
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6199 missing_data_or_waiting:
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6200 if (res->flags & CF_SHUTW)
6201 goto aborted_xfer;
6202
6203 /* stop waiting for data if the input is closed before the end. If the
6204 * client side was already closed, it means that the client has aborted,
6205 * so we don't want to count this as a server abort. Otherwise it's a
6206 * server abort.
6207 */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]6208 if (msg->msg_state < HTTP_MSG_ENDING && res->flags & CF_SHUTR) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6209 if ((s->req.flags & (CF_SHUTR|CF_SHUTW)) == (CF_SHUTR|CF_SHUTW))
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6210 goto aborted_xfer;
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6211 /* If we have some pending data, we continue the processing */
Willy Tarreau5ba65522018-06-15 15:14:53 +0200[diff] [blame]6212 if (!ci_data(res)) {
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6213 if (!(s->flags & SF_ERR_MASK))
6214 s->flags |= SF_ERR_SRVCL;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6215 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6216 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6217 HA_ATOMIC_ADD(&objt_server(s->target)->counters.srv_aborts, 1);
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6218 goto return_bad_res_stats_ok;
6219 }
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6220 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6221
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6222 /* we need to obey the req analyser, so if it leaves, we must too */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6223 if (!s->req.analysers)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]6224 goto return_bad_res;
6225
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6226 /* When TE: chunked is used, we need to get there again to parse
6227 * remaining chunks even if the server has closed, so we don't want to
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6228 * set CF_DONTCLOSE. Similarly, if keep-alive is set on the client side
6229 * or if there are filters registered on the stream, we don't want to
6230 * forward a close
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6231 */
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6232 if ((msg->flags & HTTP_MSGF_TE_CHNK) ||
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]6233 HAS_DATA_FILTERS(s, res) ||
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6234 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6235 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6236 channel_dont_close(res);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6237
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6238 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6239 * 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]6240 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]6241 * modes are already handled by the stream sock layer. We must not do
6242 * this in content-length mode because it could present the MSG_MORE
6243 * flag with the last block of forwarded data, which would cause an
6244 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6245 */
Christopher Faulet92d36382015-11-05 13:35:03 +0100[diff] [blame]6246 if ((msg->flags & HTTP_MSGF_TE_CHNK) || (msg->flags & HTTP_MSGF_COMPRESSING))
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6247 res->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6248
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6249 /* the stream handler will take care of timeouts and errors */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6250 return 0;
6251
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6252 return_bad_res: /* let's centralize all bad responses */
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6253 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6254 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6255 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6256
6257 return_bad_res_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6258 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6259 txn->rsp.msg_state = HTTP_MSG_ERROR;
Willy Tarreau148d0992010-01-10 10:21:21 +0100[diff] [blame]6260 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6261 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6262 res->analysers &= AN_RES_FLT_END;
6263 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]6264 if (objt_server(s->target))
6265 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6266
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6267 if (!(s->flags & SF_ERR_MASK))
6268 s->flags |= SF_ERR_PRXCOND;
6269 if (!(s->flags & SF_FINST_MASK))
6270 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6271 return 0;
6272
6273 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6274 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6275 txn->rsp.msg_state = HTTP_MSG_ERROR;
6276 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6277 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6278 res->analysers &= AN_RES_FLT_END;
6279 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]6280
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6281 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
6282 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6283 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6284 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6285
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6286 if (!(s->flags & SF_ERR_MASK))
6287 s->flags |= SF_ERR_CLICL;
6288 if (!(s->flags & SF_FINST_MASK))
6289 s->flags |= SF_FINST_D;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6290 return 0;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6291}
6292
6293
6294static inline int
6295http_msg_forward_body(struct stream *s, struct http_msg *msg)
6296{
6297 struct channel *chn = msg->chn;
6298 int ret;
6299
6300 /* Here we have the guarantee to be in HTTP_MSG_DATA or HTTP_MSG_ENDING state */
6301
6302 if (msg->msg_state == HTTP_MSG_ENDING)
6303 goto ending;
6304
6305 /* Neither content-length, nor transfer-encoding was found, so we must
6306 * read the body until the server connection is closed. In that case, we
6307 * eat data as they come. Of course, this happens for response only. */
6308 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6309 unsigned long long len = ci_data(chn) - msg->next;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6310 msg->chunk_len += len;
6311 msg->body_len += len;
6312 }
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6313 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6314 /* default_ret */ MIN(msg->chunk_len, ci_data(chn) - msg->next),
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6315 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6316 msg->next += ret;
6317 msg->chunk_len -= ret;
6318 if (msg->chunk_len) {
6319 /* input empty or output full */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6320 if (ci_data(chn) > msg->next)
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6321 chn->flags |= CF_WAKE_WRITE;
6322 goto missing_data_or_waiting;
6323 }
6324
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]6325 /* This check can only be true for a response. HTTP_MSGF_XFER_LEN is
6326 * always set for a request. */
6327 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6328 /* The server still sending data that should be filtered */
6329 if (!(chn->flags & CF_SHUTR) && HAS_DATA_FILTERS(s, chn))
6330 goto missing_data_or_waiting;
Christopher Fauletfd04fcf2018-02-02 15:54:15 +0100[diff] [blame]6331 msg->msg_state = HTTP_MSG_TUNNEL;
6332 goto ending;
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]6333 }
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]6334
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6335 msg->msg_state = HTTP_MSG_ENDING;
6336
6337 ending:
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6338 /* 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]6339 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6340 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6341 /* default_ret */ msg->next,
6342 /* on_error */ goto error);
Willy Tarreaubcbd3932018-06-06 07:13:22 +0200[diff] [blame]6343 c_adv(chn, ret);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6344 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6345 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6346 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6347 if (msg->next)
6348 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6349
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6350 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
6351 /* default_ret */ 1,
6352 /* on_error */ goto error,
6353 /* on_wait */ goto waiting);
Christopher Fauletfd04fcf2018-02-02 15:54:15 +0100[diff] [blame]6354 if (msg->msg_state == HTTP_MSG_ENDING)
6355 msg->msg_state = HTTP_MSG_DONE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6356 return 1;
6357
6358 missing_data_or_waiting:
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6359 /* we may have some pending data starting at chn->buf.p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6360 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6361 /* default_ret */ msg->next,
6362 /* on_error */ goto error);
Willy Tarreaubcbd3932018-06-06 07:13:22 +0200[diff] [blame]6363 c_adv(chn, ret);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6364 msg->next -= ret;
6365 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6366 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6367 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6368 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6369 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6370 return 0;
6371 error:
6372 return -1;
6373}
6374
6375static inline int
6376http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg)
6377{
6378 struct channel *chn = msg->chn;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6379 unsigned int chunk;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6380 int ret;
6381
6382 /* Here we have the guarantee to be in one of the following state:
6383 * HTTP_MSG_DATA, HTTP_MSG_CHUNK_SIZE, HTTP_MSG_CHUNK_CRLF,
6384 * HTTP_MSG_TRAILERS or HTTP_MSG_ENDING. */
6385
6386 switch_states:
6387 switch (msg->msg_state) {
6388 case HTTP_MSG_DATA:
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6389 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6390 /* default_ret */ MIN(msg->chunk_len, ci_data(chn) - msg->next),
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6391 /* on_error */ goto error);
6392 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6393 msg->chunk_len -= ret;
6394 if (msg->chunk_len) {
6395 /* input empty or output full */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6396 if (ci_data(chn) > msg->next)
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6397 chn->flags |= CF_WAKE_WRITE;
6398 goto missing_data_or_waiting;
6399 }
6400
6401 /* nothing left to forward for this chunk*/
6402 msg->msg_state = HTTP_MSG_CHUNK_CRLF;
6403 /* fall through for HTTP_MSG_CHUNK_CRLF */
6404
6405 case HTTP_MSG_CHUNK_CRLF:
6406 /* we want the CRLF after the data */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6407 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]6408 if (ret == 0)
6409 goto missing_data_or_waiting;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6410 if (ret < 0) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6411 msg->err_pos = ci_data(chn) + ret;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6412 if (msg->err_pos < 0)
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6413 msg->err_pos += chn->buf.size;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6414 goto chunk_parsing_error;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6415 }
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6416 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6417 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
6418 /* fall through for HTTP_MSG_CHUNK_SIZE */
6419
6420 case HTTP_MSG_CHUNK_SIZE:
6421 /* read the chunk size and assign it to ->chunk_len,
6422 * then set ->next to point to the body and switch to
6423 * DATA or TRAILERS state.
6424 */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6425 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]6426 if (ret == 0)
6427 goto missing_data_or_waiting;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6428 if (ret < 0) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6429 msg->err_pos = ci_data(chn) + ret;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6430 if (msg->err_pos < 0)
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6431 msg->err_pos += chn->buf.size;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6432 goto chunk_parsing_error;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6433 }
6434
6435 msg->sol = ret;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6436 msg->next += ret;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6437 msg->chunk_len = chunk;
6438 msg->body_len += chunk;
6439
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6440 if (msg->chunk_len) {
6441 msg->msg_state = HTTP_MSG_DATA;
6442 goto switch_states;
6443 }
6444 msg->msg_state = HTTP_MSG_TRAILERS;
6445 /* fall through for HTTP_MSG_TRAILERS */
6446
6447 case HTTP_MSG_TRAILERS:
6448 ret = http_forward_trailers(msg);
6449 if (ret < 0)
6450 goto chunk_parsing_error;
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6451 FLT_STRM_DATA_CB(s, chn, flt_http_chunk_trailers(s, msg),
6452 /* default_ret */ 1,
6453 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6454 msg->next += msg->sol;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6455 if (!ret)
6456 goto missing_data_or_waiting;
6457 break;
6458
6459 case HTTP_MSG_ENDING:
6460 goto ending;
6461
6462 default:
6463 /* This should no happen in this function */
6464 goto error;
6465 }
6466
6467 msg->msg_state = HTTP_MSG_ENDING;
6468 ending:
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6469 /* 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]6470 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6471 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]6472 /* default_ret */ msg->next,
6473 /* on_error */ goto error);
Willy Tarreaubcbd3932018-06-06 07:13:22 +0200[diff] [blame]6474 c_adv(chn, ret);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6475 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6476 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6477 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6478 if (msg->next)
6479 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6480
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6481 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6482 /* default_ret */ 1,
6483 /* on_error */ goto error,
6484 /* on_wait */ goto waiting);
6485 msg->msg_state = HTTP_MSG_DONE;
6486 return 1;
6487
6488 missing_data_or_waiting:
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6489 /* we may have some pending data starting at chn->buf.p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6490 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]6491 /* default_ret */ msg->next,
6492 /* on_error */ goto error);
Willy Tarreaubcbd3932018-06-06 07:13:22 +0200[diff] [blame]6493 c_adv(chn, ret);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6494 msg->next -= ret;
6495 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6496 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6497 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6498 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6499 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6500 return 0;
6501
6502 chunk_parsing_error:
6503 if (msg->err_pos >= 0) {
6504 if (chn->flags & CF_ISRESP)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6505 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg,
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6506 msg->msg_state, strm_fe(s));
6507 else
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6508 http_capture_bad_message(strm_fe(s), &strm_fe(s)->invalid_req, s,
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6509 msg, msg->msg_state, s->be);
6510 }
6511 error:
6512 return -1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6513}
6514
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6515
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6516/* Iterate the same filter through all request headers.
6517 * Returns 1 if this filter can be stopped upon return, otherwise 0.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6518 * Since it can manage the switch to another backend, it updates the per-proxy
6519 * DENY stats.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6520 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6521int 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]6522{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6523 char *cur_ptr, *cur_end, *cur_next;
6524 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6525 struct http_txn *txn = s->txn;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6526 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6527 int delta;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100[diff] [blame]6528
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6529 last_hdr = 0;
6530
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6531 cur_next = ci_head(req) + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6532 old_idx = 0;
6533
6534 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6535 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6536 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6537 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6538 (exp->action == ACT_ALLOW ||
6539 exp->action == ACT_DENY ||
6540 exp->action == ACT_TARPIT))
6541 return 0;
6542
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6543 cur_idx = txn->hdr_idx.v[old_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6544 if (!cur_idx)
6545 break;
6546
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6547 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6548 cur_ptr = cur_next;
6549 cur_end = cur_ptr + cur_hdr->len;
6550 cur_next = cur_end + cur_hdr->cr + 1;
6551
6552 /* Now we have one header between cur_ptr and cur_end,
6553 * and the next header starts at cur_next.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6554 */
6555
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]6556 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]6557 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6558 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6559 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6560 last_hdr = 1;
6561 break;
6562
6563 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6564 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6565 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6566 break;
6567
6568 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6569 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6570 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6571 break;
6572
6573 case ACT_REPLACE:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]6574 trash.data = exp_replace(trash.area,
6575 trash.size, cur_ptr,
6576 exp->replace, pmatch);
6577 if (trash.data < 0)
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6578 return -1;
6579
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]6580 delta = b_rep_blk(&req->buf, cur_ptr, cur_end,
6581 trash.area, trash.data);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6582 /* FIXME: if the user adds a newline in the replacement, the
6583 * index will not be recalculated for now, and the new line
6584 * will not be counted as a new header.
6585 */
6586
6587 cur_end += delta;
6588 cur_next += delta;
6589 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6590 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6591 break;
6592
6593 case ACT_REMOVE:
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6594 delta = b_rep_blk(&req->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6595 cur_next += delta;
6596
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6597 http_msg_move_end(&txn->req, delta);
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6598 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
6599 txn->hdr_idx.used--;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6600 cur_hdr->len = 0;
6601 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]6602 cur_idx = old_idx;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6603 break;
6604
6605 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6606 }
6607
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6608 /* keep the link from this header to next one in case of later
6609 * removal of next header.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6610 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6611 old_idx = cur_idx;
6612 }
6613 return 0;
6614}
6615
6616
6617/* Apply the filter to the request line.
6618 * Returns 0 if nothing has been done, 1 if the filter has been applied,
6619 * or -1 if a replacement resulted in an invalid request line.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6620 * Since it can manage the switch to another backend, it updates the per-proxy
6621 * DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6622 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6623int 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]6624{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6625 char *cur_ptr, *cur_end;
6626 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6627 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6628 int delta;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6629
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6630 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6631 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6632 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6633 (exp->action == ACT_ALLOW ||
6634 exp->action == ACT_DENY ||
6635 exp->action == ACT_TARPIT))
6636 return 0;
6637 else if (exp->action == ACT_REMOVE)
6638 return 0;
6639
6640 done = 0;
6641
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6642 cur_ptr = ci_head(req);
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6643 cur_end = cur_ptr + txn->req.sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6644
6645 /* Now we have the request line between cur_ptr and cur_end */
6646
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]6647 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]6648 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6649 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6650 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6651 done = 1;
6652 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6653
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6654 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6655 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6656 done = 1;
6657 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6658
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6659 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6660 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6661 done = 1;
6662 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6663
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6664 case ACT_REPLACE:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]6665 trash.data = exp_replace(trash.area, trash.size,
6666 cur_ptr, exp->replace, pmatch);
6667 if (trash.data < 0)
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6668 return -1;
6669
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]6670 delta = b_rep_blk(&req->buf, cur_ptr, cur_end,
6671 trash.area, trash.data);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6672 /* FIXME: if the user adds a newline in the replacement, the
6673 * index will not be recalculated for now, and the new line
6674 * will not be counted as a new header.
6675 */
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6676
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6677 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6678 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]6679 cur_end = (char *)http_parse_reqline(&txn->req,
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6680 HTTP_MSG_RQMETH,
6681 cur_ptr, cur_end + 1,
6682 NULL, NULL);
6683 if (unlikely(!cur_end))
6684 return -1;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6685
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6686 /* we have a full request and we know that we have either a CR
6687 * or an LF at <ptr>.
6688 */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6689 txn->meth = find_http_meth(cur_ptr, txn->req.sl.rq.m_l);
6690 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]6691 /* there is no point trying this regex on headers */
6692 return 1;
6693 }
6694 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6695 return done;
6696}
Willy Tarreau97de6242006-12-27 17:18:38 +0100[diff] [blame]6697
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6698
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6699
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6700/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6701 * 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]6702 * 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]6703 * unparsable request. Since it can manage the switch to another backend, it
6704 * updates the per-proxy DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6705 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6706int apply_filters_to_request(struct stream *s, struct channel *req, struct proxy *px)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6707{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6708 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6709 struct http_txn *txn = s->txn;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6710 struct hdr_exp *exp;
6711
6712 for (exp = px->req_exp; exp; exp = exp->next) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6713 int ret;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6714
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6715 /*
6716 * The interleaving of transformations and verdicts
6717 * makes it difficult to decide to continue or stop
6718 * the evaluation.
6719 */
6720
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6721 if (txn->flags & (TX_CLDENY|TX_CLTARPIT))
6722 break;
6723
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6724 if ((txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6725 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6726 exp->action == ACT_TARPIT || exp->action == ACT_PASS))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6727 continue;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6728
6729 /* if this filter had a condition, evaluate it now and skip to
6730 * next filter if the condition does not match.
6731 */
6732 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6733 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]6734 ret = acl_pass(ret);
6735 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
6736 ret = !ret;
6737
6738 if (!ret)
6739 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6740 }
6741
6742 /* Apply the filter to the request line. */
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6743 ret = apply_filter_to_req_line(s, req, exp);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6744 if (unlikely(ret < 0))
6745 return -1;
6746
6747 if (likely(ret == 0)) {
6748 /* The filter did not match the request, it can be
6749 * iterated through all headers.
6750 */
Willy Tarreau34d4c3c2015-01-30 20:58:58 +0100[diff] [blame]6751 if (unlikely(apply_filter_to_req_headers(s, req, exp) < 0))
6752 return -1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6753 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6754 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6755 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6756}
6757
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6758
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6759/* Find the end of a cookie value contained between <s> and <e>. It works the
6760 * same way as with headers above except that the semi-colon also ends a token.
6761 * See RFC2965 for more information. Note that it requires a valid header to
6762 * return a valid result.
6763 */
6764char *find_cookie_value_end(char *s, const char *e)
6765{
6766 int quoted, qdpair;
6767
6768 quoted = qdpair = 0;
6769 for (; s < e; s++) {
6770 if (qdpair) qdpair = 0;
6771 else if (quoted) {
6772 if (*s == '\\') qdpair = 1;
6773 else if (*s == '"') quoted = 0;
6774 }
6775 else if (*s == '"') quoted = 1;
6776 else if (*s == ',' || *s == ';') return s;
6777 }
6778 return s;
6779}
6780
6781/* Delete a value in a header between delimiters <from> and <next> in buffer
6782 * <buf>. The number of characters displaced is returned, and the pointer to
6783 * the first delimiter is updated if required. The function tries as much as
6784 * possible to respect the following principles :
6785 * - replace <from> delimiter by the <next> one unless <from> points to a
6786 * colon, in which case <next> is simply removed
6787 * - set exactly one space character after the new first delimiter, unless
6788 * there are not enough characters in the block being moved to do so.
6789 * - remove unneeded spaces before the previous delimiter and after the new
6790 * one.
6791 *
6792 * It is the caller's responsibility to ensure that :
6793 * - <from> points to a valid delimiter or the colon ;
6794 * - <next> points to a valid delimiter or the final CR/LF ;
6795 * - there are non-space chars before <from> ;
6796 * - there is a CR/LF at or after <next>.
6797 */
Willy Tarreauaf819352012-08-27 22:08:00 +0200[diff] [blame]6798int del_hdr_value(struct buffer *buf, char **from, char *next)
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6799{
6800 char *prev = *from;
6801
6802 if (*prev == ':') {
6803 /* We're removing the first value, preserve the colon and add a
6804 * space if possible.
6805 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6806 if (!HTTP_IS_CRLF(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6807 next++;
6808 prev++;
6809 if (prev < next)
6810 *prev++ = ' ';
6811
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6812 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6813 next++;
6814 } else {
6815 /* Remove useless spaces before the old delimiter. */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6816 while (HTTP_IS_SPHT(*(prev-1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6817 prev--;
6818 *from = prev;
6819
6820 /* copy the delimiter and if possible a space if we're
6821 * not at the end of the line.
6822 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6823 if (!HTTP_IS_CRLF(*next)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6824 *prev++ = *next++;
6825 if (prev + 1 < next)
6826 *prev++ = ' ';
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6827 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6828 next++;
6829 }
6830 }
Willy Tarreaue3128022018-07-12 15:55:34 +0200[diff] [blame]6831 return b_rep_blk(buf, prev, next, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6832}
6833
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6834/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]6835 * Manage client-side cookie. It can impact performance by about 2% so it is
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6836 * desirable to call it only when needed. This code is quite complex because
6837 * of the multiple very crappy and ambiguous syntaxes we have to support. it
6838 * highly recommended not to touch this part without a good reason !
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6839 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6840void manage_client_side_cookies(struct stream *s, struct channel *req)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6841{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6842 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6843 struct session *sess = s->sess;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6844 int preserve_hdr;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6845 int cur_idx, old_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6846 char *hdr_beg, *hdr_end, *hdr_next, *del_from;
6847 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6848
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6849 /* Iterate through the headers, we start with the start line. */
Willy Tarreau83969f42007-01-22 08:55:47 +0100[diff] [blame]6850 old_idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]6851 hdr_next = ci_head(req) + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6852
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6853 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6854 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6855 int val;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6856
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6857 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6858 hdr_beg = hdr_next;
6859 hdr_end = hdr_beg + cur_hdr->len;
6860 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6861
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6862 /* We have one full header between hdr_beg and hdr_end, and the
6863 * next header starts at hdr_next. We're only interested in
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6864 * "Cookie:" headers.
6865 */
6866
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6867 val = http_header_match2(hdr_beg, hdr_end, "Cookie", 6);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6868 if (!val) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6869 old_idx = cur_idx;
6870 continue;
6871 }
6872
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6873 del_from = NULL; /* nothing to be deleted */
6874 preserve_hdr = 0; /* assume we may kill the whole header */
6875
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6876 /* Now look for cookies. Conforming to RFC2109, we have to support
6877 * attributes whose name begin with a '$', and associate them with
6878 * the right cookie, if we want to delete this cookie.
6879 * So there are 3 cases for each cookie read :
6880 * 1) it's a special attribute, beginning with a '$' : ignore it.
6881 * 2) it's a server id cookie that we *MAY* want to delete : save
6882 * some pointers on it (last semi-colon, beginning of cookie...)
6883 * 3) it's an application cookie : we *MAY* have to delete a previous
6884 * "special" cookie.
6885 * At the end of loop, if a "special" cookie remains, we may have to
6886 * remove it. If no application cookie persists in the header, we
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6887 * *MUST* delete it.
6888 *
6889 * Note: RFC2965 is unclear about the processing of spaces around
6890 * the equal sign in the ATTR=VALUE form. A careful inspection of
6891 * the RFC explicitly allows spaces before it, and not within the
6892 * tokens (attrs or values). An inspection of RFC2109 allows that
6893 * too but section 10.1.3 lets one think that spaces may be allowed
6894 * after the equal sign too, resulting in some (rare) buggy
6895 * implementations trying to do that. So let's do what servers do.
6896 * Latest ietf draft forbids spaces all around. Also, earlier RFCs
6897 * allowed quoted strings in values, with any possible character
6898 * after a backslash, including control chars and delimitors, which
6899 * causes parsing to become ambiguous. Browsers also allow spaces
6900 * within values even without quotes.
6901 *
6902 * We have to keep multiple pointers in order to support cookie
6903 * removal at the beginning, middle or end of header without
6904 * corrupting the header. All of these headers are valid :
6905 *
6906 * Cookie:NAME1=VALUE1;NAME2=VALUE2;NAME3=VALUE3\r\n
6907 * Cookie:NAME1=VALUE1;NAME2_ONLY ;NAME3=VALUE3\r\n
6908 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
6909 * | | | | | | | | |
6910 * | | | | | | | | hdr_end <--+
6911 * | | | | | | | +--> next
6912 * | | | | | | +----> val_end
6913 * | | | | | +-----------> val_beg
6914 * | | | | +--------------> equal
6915 * | | | +----------------> att_end
6916 * | | +---------------------> att_beg
6917 * | +--------------------------> prev
6918 * +--------------------------------> hdr_beg
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6919 */
6920
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6921 for (prev = hdr_beg + 6; prev < hdr_end; prev = next) {
6922 /* Iterate through all cookies on this line */
6923
6924 /* find att_beg */
6925 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6926 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6927 att_beg++;
6928
6929 /* find att_end : this is the first character after the last non
6930 * space before the equal. It may be equal to hdr_end.
6931 */
6932 equal = att_end = att_beg;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6933
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6934 while (equal < hdr_end) {
6935 if (*equal == '=' || *equal == ',' || *equal == ';')
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6936 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6937 if (HTTP_IS_SPHT(*equal++))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6938 continue;
6939 att_end = equal;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6940 }
6941
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6942 /* here, <equal> points to '=', a delimitor or the end. <att_end>
6943 * is between <att_beg> and <equal>, both may be identical.
6944 */
6945
6946 /* look for end of cookie if there is an equal sign */
6947 if (equal < hdr_end && *equal == '=') {
6948 /* look for the beginning of the value */
6949 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6950 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6951 val_beg++;
6952
6953 /* find the end of the value, respecting quotes */
6954 next = find_cookie_value_end(val_beg, hdr_end);
6955
6956 /* make val_end point to the first white space or delimitor after the value */
6957 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6958 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6959 val_end--;
6960 } else {
6961 val_beg = val_end = next = equal;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6962 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6963
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6964 /* We have nothing to do with attributes beginning with '$'. However,
6965 * they will automatically be removed if a header before them is removed,
6966 * since they're supposed to be linked together.
6967 */
6968 if (*att_beg == '$')
6969 continue;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6970
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6971 /* Ignore cookies with no equal sign */
6972 if (equal == next) {
6973 /* This is not our cookie, so we must preserve it. But if we already
6974 * scheduled another cookie for removal, we cannot remove the
6975 * complete header, but we can remove the previous block itself.
6976 */
6977 preserve_hdr = 1;
6978 if (del_from != NULL) {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]6979 int delta = del_hdr_value(&req->buf, &del_from, prev);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6980 val_end += delta;
6981 next += delta;
6982 hdr_end += delta;
6983 hdr_next += delta;
6984 cur_hdr->len += delta;
6985 http_msg_move_end(&txn->req, delta);
6986 prev = del_from;
6987 del_from = NULL;
6988 }
6989 continue;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6990 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6991
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6992 /* if there are spaces around the equal sign, we need to
6993 * strip them otherwise we'll get trouble for cookie captures,
6994 * or even for rewrites. Since this happens extremely rarely,
6995 * it does not hurt performance.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6996 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6997 if (unlikely(att_end != equal || val_beg > equal + 1)) {
6998 int stripped_before = 0;
6999 int stripped_after = 0;
7000
7001 if (att_end != equal) {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7002 stripped_before = b_rep_blk(&req->buf, att_end, equal, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7003 equal += stripped_before;
7004 val_beg += stripped_before;
7005 }
7006
7007 if (val_beg > equal + 1) {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7008 stripped_after = b_rep_blk(&req->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7009 val_beg += stripped_after;
7010 stripped_before += stripped_after;
7011 }
7012
7013 val_end += stripped_before;
7014 next += stripped_before;
7015 hdr_end += stripped_before;
7016 hdr_next += stripped_before;
7017 cur_hdr->len += stripped_before;
7018 http_msg_move_end(&txn->req, stripped_before);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7019 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7020 /* now everything is as on the diagram above */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7021
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7022 /* First, let's see if we want to capture this cookie. We check
7023 * that we don't already have a client side cookie, because we
7024 * can only capture one. Also as an optimisation, we ignore
7025 * cookies shorter than the declared name.
7026 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7027 if (sess->fe->capture_name != NULL && txn->cli_cookie == NULL &&
7028 (val_end - att_beg >= sess->fe->capture_namelen) &&
7029 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7030 int log_len = val_end - att_beg;
7031
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]7032 if ((txn->cli_cookie = pool_alloc(pool_head_capture)) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]7033 ha_alert("HTTP logging : out of memory.\n");
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7034 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7035 if (log_len > sess->fe->capture_len)
7036 log_len = sess->fe->capture_len;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7037 memcpy(txn->cli_cookie, att_beg, log_len);
7038 txn->cli_cookie[log_len] = 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7039 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7040 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7041
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7042 /* Persistence cookies in passive, rewrite or insert mode have the
7043 * following form :
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7044 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7045 * Cookie: NAME=SRV[|<lastseen>[|<firstseen>]]
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7046 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7047 * For cookies in prefix mode, the form is :
7048 *
7049 * Cookie: NAME=SRV~VALUE
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7050 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7051 if ((att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
7052 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
7053 struct server *srv = s->be->srv;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7054 char *delim;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7055
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7056 /* if we're in cookie prefix mode, we'll search the delimitor so that we
7057 * have the server ID between val_beg and delim, and the original cookie between
7058 * delim+1 and val_end. Otherwise, delim==val_end :
7059 *
7060 * Cookie: NAME=SRV; # in all but prefix modes
7061 * Cookie: NAME=SRV~OPAQUE ; # in prefix mode
7062 * | || || | |+-> next
7063 * | || || | +--> val_end
7064 * | || || +---------> delim
7065 * | || |+------------> val_beg
7066 * | || +-------------> att_end = equal
7067 * | |+-----------------> att_beg
7068 * | +------------------> prev
7069 * +-------------------------> hdr_beg
7070 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7071
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7072 if (s->be->ck_opts & PR_CK_PFX) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7073 for (delim = val_beg; delim < val_end; delim++)
7074 if (*delim == COOKIE_DELIM)
7075 break;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7076 } else {
7077 char *vbar1;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7078 delim = val_end;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7079 /* Now check if the cookie contains a date field, which would
7080 * appear after a vertical bar ('|') just after the server name
7081 * and before the delimiter.
7082 */
7083 vbar1 = memchr(val_beg, COOKIE_DELIM_DATE, val_end - val_beg);
7084 if (vbar1) {
7085 /* OK, so left of the bar is the server's cookie and
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7086 * right is the last seen date. It is a base64 encoded
7087 * 30-bit value representing the UNIX date since the
7088 * epoch in 4-second quantities.
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7089 */
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7090 int val;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7091 delim = vbar1++;
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7092 if (val_end - vbar1 >= 5) {
7093 val = b64tos30(vbar1);
7094 if (val > 0)
7095 txn->cookie_last_date = val << 2;
7096 }
7097 /* look for a second vertical bar */
7098 vbar1 = memchr(vbar1, COOKIE_DELIM_DATE, val_end - vbar1);
7099 if (vbar1 && (val_end - vbar1 > 5)) {
7100 val = b64tos30(vbar1 + 1);
7101 if (val > 0)
7102 txn->cookie_first_date = val << 2;
7103 }
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7104 }
7105 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7106
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7107 /* if the cookie has an expiration date and the proxy wants to check
7108 * it, then we do that now. We first check if the cookie is too old,
7109 * then only if it has expired. We detect strict overflow because the
7110 * time resolution here is not great (4 seconds). Cookies with dates
7111 * in the future are ignored if their offset is beyond one day. This
7112 * allows an admin to fix timezone issues without expiring everyone
7113 * and at the same time avoids keeping unwanted side effects for too
7114 * long.
7115 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7116 if (txn->cookie_first_date && s->be->cookie_maxlife &&
7117 (((signed)(date.tv_sec - txn->cookie_first_date) > (signed)s->be->cookie_maxlife) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]7118 ((signed)(txn->cookie_first_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7119 txn->flags &= ~TX_CK_MASK;
7120 txn->flags |= TX_CK_OLD;
7121 delim = val_beg; // let's pretend we have not found the cookie
7122 txn->cookie_first_date = 0;
7123 txn->cookie_last_date = 0;
7124 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7125 else if (txn->cookie_last_date && s->be->cookie_maxidle &&
7126 (((signed)(date.tv_sec - txn->cookie_last_date) > (signed)s->be->cookie_maxidle) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]7127 ((signed)(txn->cookie_last_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7128 txn->flags &= ~TX_CK_MASK;
7129 txn->flags |= TX_CK_EXPIRED;
7130 delim = val_beg; // let's pretend we have not found the cookie
7131 txn->cookie_first_date = 0;
7132 txn->cookie_last_date = 0;
7133 }
7134
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7135 /* Here, we'll look for the first running server which supports the cookie.
7136 * This allows to share a same cookie between several servers, for example
7137 * to dedicate backup servers to specific servers only.
7138 * However, to prevent clients from sticking to cookie-less backup server
7139 * when they have incidentely learned an empty cookie, we simply ignore
7140 * empty cookies and mark them as invalid.
7141 * The same behaviour is applied when persistence must be ignored.
7142 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7143 if ((delim == val_beg) || (s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7144 srv = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7145
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7146 while (srv) {
7147 if (srv->cookie && (srv->cklen == delim - val_beg) &&
7148 !memcmp(val_beg, srv->cookie, delim - val_beg)) {
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]7149 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7150 (s->be->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7151 (s->flags & SF_FORCE_PRST)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7152 /* we found the server and we can use it */
7153 txn->flags &= ~TX_CK_MASK;
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]7154 txn->flags |= (srv->cur_state != SRV_ST_STOPPED) ? TX_CK_VALID : TX_CK_DOWN;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7155 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7156 s->target = &srv->obj_type;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7157 break;
7158 } else {
7159 /* we found a server, but it's down,
7160 * mark it as such and go on in case
7161 * another one is available.
7162 */
7163 txn->flags &= ~TX_CK_MASK;
7164 txn->flags |= TX_CK_DOWN;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7165 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7166 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7167 srv = srv->next;
7168 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7169
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7170 if (!srv && !(txn->flags & (TX_CK_DOWN|TX_CK_EXPIRED|TX_CK_OLD))) {
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7171 /* no server matched this cookie or we deliberately skipped it */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7172 txn->flags &= ~TX_CK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7173 if ((s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7174 txn->flags |= TX_CK_UNUSED;
7175 else
7176 txn->flags |= TX_CK_INVALID;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7177 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7178
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7179 /* depending on the cookie mode, we may have to either :
7180 * - delete the complete cookie if we're in insert+indirect mode, so that
7181 * the server never sees it ;
7182 * - remove the server id from the cookie value, and tag the cookie as an
7183 * application cookie so that it does not get accidentely removed later,
7184 * if we're in cookie prefix mode
7185 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7186 if ((s->be->ck_opts & PR_CK_PFX) && (delim != val_end)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7187 int delta; /* negative */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7188
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7189 delta = b_rep_blk(&req->buf, val_beg, delim + 1, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7190 val_end += delta;
7191 next += delta;
7192 hdr_end += delta;
7193 hdr_next += delta;
7194 cur_hdr->len += delta;
7195 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7196
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7197 del_from = NULL;
7198 preserve_hdr = 1; /* we want to keep this cookie */
7199 }
7200 else if (del_from == NULL &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7201 (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]7202 del_from = prev;
7203 }
7204 } else {
7205 /* This is not our cookie, so we must preserve it. But if we already
7206 * scheduled another cookie for removal, we cannot remove the
7207 * complete header, but we can remove the previous block itself.
7208 */
7209 preserve_hdr = 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7210
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7211 if (del_from != NULL) {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7212 int delta = del_hdr_value(&req->buf, &del_from, prev);
Willy Tarreaub8105542010-11-24 18:31:28 +0100[diff] [blame]7213 if (att_beg >= del_from)
7214 att_beg += delta;
7215 if (att_end >= del_from)
7216 att_end += delta;
7217 val_beg += delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7218 val_end += delta;
7219 next += delta;
7220 hdr_end += delta;
7221 hdr_next += delta;
7222 cur_hdr->len += delta;
7223 http_msg_move_end(&txn->req, delta);
7224 prev = del_from;
7225 del_from = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7226 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7227 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7228
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7229 /* continue with next cookie on this header line */
7230 att_beg = next;
7231 } /* for each cookie */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7232
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7233 /* There are no more cookies on this line.
7234 * We may still have one (or several) marked for deletion at the
7235 * end of the line. We must do this now in two ways :
7236 * - if some cookies must be preserved, we only delete from the
7237 * mark to the end of line ;
7238 * - if nothing needs to be preserved, simply delete the whole header
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7239 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7240 if (del_from) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7241 int delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7242 if (preserve_hdr) {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7243 delta = del_hdr_value(&req->buf, &del_from, hdr_end);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7244 hdr_end = del_from;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7245 cur_hdr->len += delta;
7246 } else {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7247 delta = b_rep_blk(&req->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7248
7249 /* FIXME: this should be a separate function */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7250 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7251 txn->hdr_idx.used--;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7252 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7253 cur_idx = old_idx;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7254 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7255 hdr_next += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7256 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7257 }
7258
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7259 /* check next header */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7260 old_idx = cur_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7261 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7262}
7263
7264
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7265/* Iterate the same filter through all response headers contained in <rtr>.
7266 * Returns 1 if this filter can be stopped upon return, otherwise 0.
7267 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7268int 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]7269{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7270 char *cur_ptr, *cur_end, *cur_next;
7271 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7272 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7273 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7274 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7275
7276 last_hdr = 0;
7277
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]7278 cur_next = ci_head(rtr) + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7279 old_idx = 0;
7280
7281 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7282 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7283 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7284 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7285 (exp->action == ACT_ALLOW ||
7286 exp->action == ACT_DENY))
7287 return 0;
7288
7289 cur_idx = txn->hdr_idx.v[old_idx].next;
7290 if (!cur_idx)
7291 break;
7292
7293 cur_hdr = &txn->hdr_idx.v[cur_idx];
7294 cur_ptr = cur_next;
7295 cur_end = cur_ptr + cur_hdr->len;
7296 cur_next = cur_end + cur_hdr->cr + 1;
7297
7298 /* Now we have one header between cur_ptr and cur_end,
7299 * and the next header starts at cur_next.
7300 */
7301
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7302 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]7303 switch (exp->action) {
7304 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7305 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7306 last_hdr = 1;
7307 break;
7308
7309 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7310 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7311 last_hdr = 1;
7312 break;
7313
7314 case ACT_REPLACE:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]7315 trash.data = exp_replace(trash.area,
7316 trash.size, cur_ptr,
7317 exp->replace, pmatch);
7318 if (trash.data < 0)
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7319 return -1;
7320
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]7321 delta = b_rep_blk(&rtr->buf, cur_ptr, cur_end,
7322 trash.area, trash.data);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7323 /* FIXME: if the user adds a newline in the replacement, the
7324 * index will not be recalculated for now, and the new line
7325 * will not be counted as a new header.
7326 */
7327
7328 cur_end += delta;
7329 cur_next += delta;
7330 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7331 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7332 break;
7333
7334 case ACT_REMOVE:
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7335 delta = b_rep_blk(&rtr->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7336 cur_next += delta;
7337
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7338 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7339 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7340 txn->hdr_idx.used--;
7341 cur_hdr->len = 0;
7342 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7343 cur_idx = old_idx;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7344 break;
7345
7346 }
7347 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7348
7349 /* keep the link from this header to next one in case of later
7350 * removal of next header.
7351 */
7352 old_idx = cur_idx;
7353 }
7354 return 0;
7355}
7356
7357
7358/* Apply the filter to the status line in the response buffer <rtr>.
7359 * Returns 0 if nothing has been done, 1 if the filter has been applied,
7360 * or -1 if a replacement resulted in an invalid status line.
7361 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7362int 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]7363{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7364 char *cur_ptr, *cur_end;
7365 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7366 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7367 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7368
7369
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7370 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7371 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7372 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7373 (exp->action == ACT_ALLOW ||
7374 exp->action == ACT_DENY))
7375 return 0;
7376 else if (exp->action == ACT_REMOVE)
7377 return 0;
7378
7379 done = 0;
7380
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]7381 cur_ptr = ci_head(rtr);
Willy Tarreau1ba0e5f2010-06-07 13:57:32 +0200[diff] [blame]7382 cur_end = cur_ptr + txn->rsp.sl.st.l;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7383
7384 /* Now we have the status line between cur_ptr and cur_end */
7385
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7386 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]7387 switch (exp->action) {
7388 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7389 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7390 done = 1;
7391 break;
7392
7393 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7394 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7395 done = 1;
7396 break;
7397
7398 case ACT_REPLACE:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]7399 trash.data = exp_replace(trash.area, trash.size,
7400 cur_ptr, exp->replace, pmatch);
7401 if (trash.data < 0)
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7402 return -1;
7403
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]7404 delta = b_rep_blk(&rtr->buf, cur_ptr, cur_end,
7405 trash.area, trash.data);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7406 /* FIXME: if the user adds a newline in the replacement, the
7407 * index will not be recalculated for now, and the new line
7408 * will not be counted as a new header.
7409 */
7410
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7411 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7412 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7413 cur_end = (char *)http_parse_stsline(&txn->rsp,
Willy Tarreau02785762007-04-03 14:45:44 +0200[diff] [blame]7414 HTTP_MSG_RPVER,
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7415 cur_ptr, cur_end + 1,
7416 NULL, NULL);
7417 if (unlikely(!cur_end))
7418 return -1;
7419
7420 /* we have a full respnse and we know that we have either a CR
7421 * or an LF at <ptr>.
7422 */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]7423 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]7424 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]7425 /* there is no point trying this regex on headers */
7426 return 1;
7427 }
7428 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7429 return done;
7430}
7431
7432
7433
7434/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7435 * 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]7436 * Returns 0 if everything is alright, or -1 in case a replacement lead to an
7437 * unparsable response.
7438 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7439int apply_filters_to_response(struct stream *s, struct channel *rtr, struct proxy *px)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7440{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7441 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7442 struct http_txn *txn = s->txn;
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7443 struct hdr_exp *exp;
7444
7445 for (exp = px->rsp_exp; exp; exp = exp->next) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7446 int ret;
7447
7448 /*
7449 * The interleaving of transformations and verdicts
7450 * makes it difficult to decide to continue or stop
7451 * the evaluation.
7452 */
7453
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7454 if (txn->flags & TX_SVDENY)
7455 break;
7456
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7457 if ((txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7458 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
7459 exp->action == ACT_PASS)) {
7460 exp = exp->next;
7461 continue;
7462 }
7463
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7464 /* if this filter had a condition, evaluate it now and skip to
7465 * next filter if the condition does not match.
7466 */
7467 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7468 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]7469 ret = acl_pass(ret);
7470 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
7471 ret = !ret;
7472 if (!ret)
7473 continue;
7474 }
7475
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7476 /* Apply the filter to the status line. */
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7477 ret = apply_filter_to_sts_line(s, rtr, exp);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7478 if (unlikely(ret < 0))
7479 return -1;
7480
7481 if (likely(ret == 0)) {
7482 /* The filter did not match the response, it can be
7483 * iterated through all headers.
7484 */
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7485 if (unlikely(apply_filter_to_resp_headers(s, rtr, exp) < 0))
7486 return -1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7487 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7488 }
7489 return 0;
7490}
7491
7492
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7493/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]7494 * Manage server-side cookies. It can impact performance by about 2% so it is
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7495 * desirable to call it only when needed. This function is also used when we
7496 * just need to know if there is a cookie (eg: for check-cache).
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7497 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7498void manage_server_side_cookies(struct stream *s, struct channel *res)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7499{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7500 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7501 struct session *sess = s->sess;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7502 struct server *srv;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7503 int is_cookie2;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7504 int cur_idx, old_idx, delta;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7505 char *hdr_beg, *hdr_end, *hdr_next;
7506 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7507
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7508 /* Iterate through the headers.
7509 * we start with the start line.
7510 */
7511 old_idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]7512 hdr_next = ci_head(res) + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7513
7514 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
7515 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7516 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7517
7518 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7519 hdr_beg = hdr_next;
7520 hdr_end = hdr_beg + cur_hdr->len;
7521 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7522
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7523 /* We have one full header between hdr_beg and hdr_end, and the
7524 * next header starts at hdr_next. We're only interested in
7525 * "Set-Cookie" and "Set-Cookie2" headers.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7526 */
7527
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7528 is_cookie2 = 0;
7529 prev = hdr_beg + 10;
7530 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie", 10);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7531 if (!val) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7532 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie2", 11);
7533 if (!val) {
7534 old_idx = cur_idx;
7535 continue;
7536 }
7537 is_cookie2 = 1;
7538 prev = hdr_beg + 11;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7539 }
7540
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7541 /* OK, right now we know we have a Set-Cookie* at hdr_beg, and
7542 * <prev> points to the colon.
7543 */
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7544 txn->flags |= TX_SCK_PRESENT;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7545
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7546 /* Maybe we only wanted to see if there was a Set-Cookie (eg:
7547 * check-cache is enabled) and we are not interested in checking
7548 * them. Warning, the cookie capture is declared in the frontend.
Willy Tarreaufd39dda2008-10-17 12:01:58 +0200[diff] [blame]7549 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]7550 if (s->be->cookie_name == NULL && sess->fe->capture_name == NULL)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7551 return;
7552
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7553 /* OK so now we know we have to process this response cookie.
7554 * The format of the Set-Cookie header is slightly different
7555 * from the format of the Cookie header in that it does not
7556 * support the comma as a cookie delimiter (thus the header
7557 * cannot be folded) because the Expires attribute described in
7558 * the original Netscape's spec may contain an unquoted date
7559 * with a comma inside. We have to live with this because
7560 * many browsers don't support Max-Age and some browsers don't
7561 * support quoted strings. However the Set-Cookie2 header is
7562 * clean.
7563 *
7564 * We have to keep multiple pointers in order to support cookie
7565 * removal at the beginning, middle or end of header without
7566 * corrupting the header (in case of set-cookie2). A special
7567 * pointer, <scav> points to the beginning of the set-cookie-av
7568 * fields after the first semi-colon. The <next> pointer points
7569 * either to the end of line (set-cookie) or next unquoted comma
7570 * (set-cookie2). All of these headers are valid :
7571 *
7572 * Set-Cookie: NAME1 = VALUE 1 ; Secure; Path="/"\r\n
7573 * Set-Cookie:NAME=VALUE; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7574 * Set-Cookie: NAME = VALUE ; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7575 * Set-Cookie2: NAME1 = VALUE 1 ; Max-Age=0, NAME2=VALUE2; Discard\r\n
7576 * | | | | | | | | | |
7577 * | | | | | | | | +-> next hdr_end <--+
7578 * | | | | | | | +------------> scav
7579 * | | | | | | +--------------> val_end
7580 * | | | | | +--------------------> val_beg
7581 * | | | | +----------------------> equal
7582 * | | | +------------------------> att_end
7583 * | | +----------------------------> att_beg
7584 * | +------------------------------> prev
7585 * +-----------------------------------------> hdr_beg
7586 */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7587
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7588 for (; prev < hdr_end; prev = next) {
7589 /* Iterate through all cookies on this line */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7590
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7591 /* find att_beg */
7592 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7593 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7594 att_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7595
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7596 /* find att_end : this is the first character after the last non
7597 * space before the equal. It may be equal to hdr_end.
7598 */
7599 equal = att_end = att_beg;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7600
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7601 while (equal < hdr_end) {
7602 if (*equal == '=' || *equal == ';' || (is_cookie2 && *equal == ','))
7603 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7604 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7605 continue;
7606 att_end = equal;
7607 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7608
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7609 /* here, <equal> points to '=', a delimitor or the end. <att_end>
7610 * is between <att_beg> and <equal>, both may be identical.
7611 */
7612
7613 /* look for end of cookie if there is an equal sign */
7614 if (equal < hdr_end && *equal == '=') {
7615 /* look for the beginning of the value */
7616 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7617 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7618 val_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7619
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7620 /* find the end of the value, respecting quotes */
7621 next = find_cookie_value_end(val_beg, hdr_end);
7622
7623 /* make val_end point to the first white space or delimitor after the value */
7624 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7625 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7626 val_end--;
7627 } else {
7628 /* <equal> points to next comma, semi-colon or EOL */
7629 val_beg = val_end = next = equal;
7630 }
7631
7632 if (next < hdr_end) {
7633 /* Set-Cookie2 supports multiple cookies, and <next> points to
7634 * a colon or semi-colon before the end. So skip all attr-value
7635 * pairs and look for the next comma. For Set-Cookie, since
7636 * commas are permitted in values, skip to the end.
7637 */
7638 if (is_cookie2)
7639 next = find_hdr_value_end(next, hdr_end);
7640 else
7641 next = hdr_end;
7642 }
7643
7644 /* Now everything is as on the diagram above */
7645
7646 /* Ignore cookies with no equal sign */
7647 if (equal == val_end)
7648 continue;
7649
7650 /* If there are spaces around the equal sign, we need to
7651 * strip them otherwise we'll get trouble for cookie captures,
7652 * or even for rewrites. Since this happens extremely rarely,
7653 * it does not hurt performance.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7654 */
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7655 if (unlikely(att_end != equal || val_beg > equal + 1)) {
7656 int stripped_before = 0;
7657 int stripped_after = 0;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7658
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7659 if (att_end != equal) {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7660 stripped_before = b_rep_blk(&res->buf, att_end, equal, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7661 equal += stripped_before;
7662 val_beg += stripped_before;
7663 }
7664
7665 if (val_beg > equal + 1) {
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7666 stripped_after = b_rep_blk(&res->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7667 val_beg += stripped_after;
7668 stripped_before += stripped_after;
7669 }
7670
7671 val_end += stripped_before;
7672 next += stripped_before;
7673 hdr_end += stripped_before;
7674 hdr_next += stripped_before;
7675 cur_hdr->len += stripped_before;
Willy Tarreau1fc1f452011-04-07 22:35:37 +0200[diff] [blame]7676 http_msg_move_end(&txn->rsp, stripped_before);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7677 }
7678
7679 /* First, let's see if we want to capture this cookie. We check
7680 * that we don't already have a server side cookie, because we
7681 * can only capture one. Also as an optimisation, we ignore
7682 * cookies shorter than the declared name.
7683 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7684 if (sess->fe->capture_name != NULL &&
Willy Tarreau3bac9ff2007-03-18 17:31:28 +0100[diff] [blame]7685 txn->srv_cookie == NULL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7686 (val_end - att_beg >= sess->fe->capture_namelen) &&
7687 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7688 int log_len = val_end - att_beg;
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]7689 if ((txn->srv_cookie = pool_alloc(pool_head_capture)) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]7690 ha_alert("HTTP logging : out of memory.\n");
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7691 }
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7692 else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7693 if (log_len > sess->fe->capture_len)
7694 log_len = sess->fe->capture_len;
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7695 memcpy(txn->srv_cookie, att_beg, log_len);
7696 txn->srv_cookie[log_len] = 0;
7697 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7698 }
7699
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7700 srv = objt_server(s->target);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7701 /* now check if we need to process it for persistence */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7702 if (!(s->flags & SF_IGNORE_PRST) &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7703 (att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
7704 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7705 /* assume passive cookie by default */
7706 txn->flags &= ~TX_SCK_MASK;
7707 txn->flags |= TX_SCK_FOUND;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7708
7709 /* If the cookie is in insert mode on a known server, we'll delete
7710 * this occurrence because we'll insert another one later.
7711 * 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]7712 * a direct access.
7713 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7714 if (s->be->ck_opts & PR_CK_PSV) {
Willy Tarreauba4c5be2010-10-23 12:46:42 +0200[diff] [blame]7715 /* The "preserve" flag was set, we don't want to touch the
7716 * server's cookie.
7717 */
7718 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7719 else if ((srv && (s->be->ck_opts & PR_CK_INS)) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7720 ((s->flags & SF_DIRECT) && (s->be->ck_opts & PR_CK_IND))) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7721 /* this cookie must be deleted */
7722 if (*prev == ':' && next == hdr_end) {
7723 /* whole header */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7724 delta = b_rep_blk(&res->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7725 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7726 txn->hdr_idx.used--;
7727 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7728 cur_idx = old_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7729 hdr_next += delta;
7730 http_msg_move_end(&txn->rsp, delta);
7731 /* note: while both invalid now, <next> and <hdr_end>
7732 * are still equal, so the for() will stop as expected.
7733 */
7734 } else {
7735 /* just remove the value */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7736 int delta = del_hdr_value(&res->buf, &prev, next);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7737 next = prev;
7738 hdr_end += delta;
7739 hdr_next += delta;
7740 cur_hdr->len += delta;
7741 http_msg_move_end(&txn->rsp, delta);
7742 }
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7743 txn->flags &= ~TX_SCK_MASK;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7744 txn->flags |= TX_SCK_DELETED;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7745 /* and go on with next cookie */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7746 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7747 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_RW)) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7748 /* replace bytes val_beg->val_end with the cookie name associated
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7749 * with this server since we know it.
7750 */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7751 delta = b_rep_blk(&res->buf, val_beg, val_end, srv->cookie, srv->cklen);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7752 next += delta;
7753 hdr_end += delta;
7754 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7755 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7756 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7757
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7758 txn->flags &= ~TX_SCK_MASK;
7759 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7760 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7761 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_PFX)) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7762 /* insert the cookie name associated with this server
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7763 * before existing cookie, and insert a delimiter between them..
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7764 */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]7765 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]7766 next += delta;
7767 hdr_end += delta;
7768 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7769 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7770 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7771
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7772 val_beg[srv->cklen] = COOKIE_DELIM;
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7773 txn->flags &= ~TX_SCK_MASK;
7774 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7775 }
7776 }
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7777 /* that's done for this cookie, check the next one on the same
7778 * line when next != hdr_end (only if is_cookie2).
7779 */
7780 }
7781 /* check next header */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7782 old_idx = cur_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7783 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7784}
7785
7786
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7787/*
Willy Tarreau0ad8e0d2017-12-22 15:03:36 +0100[diff] [blame]7788 * Parses the Cache-Control and Pragma request header fields to determine if
7789 * the request may be served from the cache and/or if it is cacheable. Updates
7790 * s->txn->flags.
7791 */
7792void check_request_for_cacheability(struct stream *s, struct channel *chn)
7793{
7794 struct http_txn *txn = s->txn;
7795 char *p1, *p2;
7796 char *cur_ptr, *cur_end, *cur_next;
7797 int pragma_found;
7798 int cc_found;
7799 int cur_idx;
7800
7801 if ((txn->flags & (TX_CACHEABLE|TX_CACHE_IGNORE)) == TX_CACHE_IGNORE)
7802 return; /* nothing more to do here */
7803
7804 cur_idx = 0;
7805 pragma_found = cc_found = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]7806 cur_next = ci_head(chn) + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau0ad8e0d2017-12-22 15:03:36 +0100[diff] [blame]7807
7808 while ((cur_idx = txn->hdr_idx.v[cur_idx].next)) {
7809 struct hdr_idx_elem *cur_hdr;
7810 int val;
7811
7812 cur_hdr = &txn->hdr_idx.v[cur_idx];
7813 cur_ptr = cur_next;
7814 cur_end = cur_ptr + cur_hdr->len;
7815 cur_next = cur_end + cur_hdr->cr + 1;
7816
7817 /* We have one full header between cur_ptr and cur_end, and the
7818 * next header starts at cur_next.
7819 */
7820
7821 val = http_header_match2(cur_ptr, cur_end, "Pragma", 6);
7822 if (val) {
7823 if ((cur_end - (cur_ptr + val) >= 8) &&
7824 strncasecmp(cur_ptr + val, "no-cache", 8) == 0) {
7825 pragma_found = 1;
7826 continue;
7827 }
7828 }
7829
William Lallemand8a16fe02018-05-22 11:04:33 +0200[diff] [blame]7830 /* Don't use the cache and don't try to store if we found the
7831 * Authorization header */
7832 val = http_header_match2(cur_ptr, cur_end, "Authorization", 13);
7833 if (val) {
7834 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7835 txn->flags |= TX_CACHE_IGNORE;
7836 continue;
7837 }
7838
Willy Tarreau0ad8e0d2017-12-22 15:03:36 +0100[diff] [blame]7839 val = http_header_match2(cur_ptr, cur_end, "Cache-control", 13);
7840 if (!val)
7841 continue;
7842
7843 /* OK, right now we know we have a cache-control header at cur_ptr */
7844 cc_found = 1;
7845 p1 = cur_ptr + val; /* first non-space char after 'cache-control:' */
7846
7847 if (p1 >= cur_end) /* no more info */
7848 continue;
7849
7850 /* p1 is at the beginning of the value */
7851 p2 = p1;
7852 while (p2 < cur_end && *p2 != '=' && *p2 != ',' && !isspace((unsigned char)*p2))
7853 p2++;
7854
7855 /* we have a complete value between p1 and p2. We don't check the
7856 * values after max-age, max-stale nor min-fresh, we simply don't
7857 * use the cache when they're specified.
7858 */
7859 if (((p2 - p1 == 7) && strncasecmp(p1, "max-age", 7) == 0) ||
7860 ((p2 - p1 == 8) && strncasecmp(p1, "no-cache", 8) == 0) ||
7861 ((p2 - p1 == 9) && strncasecmp(p1, "max-stale", 9) == 0) ||
7862 ((p2 - p1 == 9) && strncasecmp(p1, "min-fresh", 9) == 0)) {
7863 txn->flags |= TX_CACHE_IGNORE;
7864 continue;
7865 }
7866
7867 if ((p2 - p1 == 8) && strncasecmp(p1, "no-store", 8) == 0) {
7868 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7869 continue;
7870 }
7871 }
7872
7873 /* RFC7234#5.4:
7874 * When the Cache-Control header field is also present and
7875 * understood in a request, Pragma is ignored.
7876 * When the Cache-Control header field is not present in a
7877 * request, caches MUST consider the no-cache request
7878 * pragma-directive as having the same effect as if
7879 * "Cache-Control: no-cache" were present.
7880 */
7881 if (!cc_found && pragma_found)
7882 txn->flags |= TX_CACHE_IGNORE;
7883}
7884
7885/*
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7886 * Check if response is cacheable or not. Updates s->txn->flags.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7887 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7888void check_response_for_cacheability(struct stream *s, struct channel *rtr)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7889{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7890 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7891 char *p1, *p2;
7892
7893 char *cur_ptr, *cur_end, *cur_next;
7894 int cur_idx;
7895
Willy Tarreau12b32f22017-12-21 16:08:09 +0100[diff] [blame]7896 if (txn->status < 200) {
7897 /* do not try to cache interim responses! */
7898 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7899 return;
Willy Tarreau12b32f22017-12-21 16:08:09 +0100[diff] [blame]7900 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7901
7902 /* Iterate through the headers.
7903 * we start with the start line.
7904 */
7905 cur_idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]7906 cur_next = ci_head(rtr) + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7907
7908 while ((cur_idx = txn->hdr_idx.v[cur_idx].next)) {
7909 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7910 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7911
7912 cur_hdr = &txn->hdr_idx.v[cur_idx];
7913 cur_ptr = cur_next;
7914 cur_end = cur_ptr + cur_hdr->len;
7915 cur_next = cur_end + cur_hdr->cr + 1;
7916
7917 /* We have one full header between cur_ptr and cur_end, and the
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7918 * next header starts at cur_next.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7919 */
7920
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7921 val = http_header_match2(cur_ptr, cur_end, "Pragma", 6);
7922 if (val) {
7923 if ((cur_end - (cur_ptr + val) >= 8) &&
7924 strncasecmp(cur_ptr + val, "no-cache", 8) == 0) {
7925 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7926 return;
7927 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7928 }
7929
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7930 val = http_header_match2(cur_ptr, cur_end, "Cache-control", 13);
7931 if (!val)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7932 continue;
7933
7934 /* OK, right now we know we have a cache-control header at cur_ptr */
7935
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7936 p1 = cur_ptr + val; /* first non-space char after 'cache-control:' */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7937
7938 if (p1 >= cur_end) /* no more info */
7939 continue;
7940
7941 /* p1 is at the beginning of the value */
7942 p2 = p1;
7943
Willy Tarreau8f8e6452007-06-17 21:51:38 +0200[diff] [blame]7944 while (p2 < cur_end && *p2 != '=' && *p2 != ',' && !isspace((unsigned char)*p2))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7945 p2++;
7946
7947 /* we have a complete value between p1 and p2 */
7948 if (p2 < cur_end && *p2 == '=') {
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7949 if (((cur_end - p2) > 1 && (p2 - p1 == 7) && strncasecmp(p1, "max-age=0", 9) == 0) ||
7950 ((cur_end - p2) > 1 && (p2 - p1 == 8) && strncasecmp(p1, "s-maxage=0", 10) == 0)) {
7951 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7952 continue;
7953 }
7954
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7955 /* we have something of the form no-cache="set-cookie" */
7956 if ((cur_end - p1 >= 21) &&
7957 strncasecmp(p1, "no-cache=\"set-cookie", 20) == 0
7958 && (p1[20] == '"' || p1[20] == ','))
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7959 txn->flags &= ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7960 continue;
7961 }
7962
7963 /* OK, so we know that either p2 points to the end of string or to a comma */
7964 if (((p2 - p1 == 7) && strncasecmp(p1, "private", 7) == 0) ||
Willy Tarreau5b15f902013-07-04 12:46:56 +0200[diff] [blame]7965 ((p2 - p1 == 8) && strncasecmp(p1, "no-cache", 8) == 0) ||
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7966 ((p2 - p1 == 8) && strncasecmp(p1, "no-store", 8) == 0)) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7967 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7968 return;
7969 }
7970
7971 if ((p2 - p1 == 6) && strncasecmp(p1, "public", 6) == 0) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7972 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7973 continue;
7974 }
7975 }
7976}
7977
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7978
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7979/*
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7980 * 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]7981 * for the current backend.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7982 *
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7983 * 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]7984 * uri_auth field is valid.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7985 *
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7986 * Returns 1 if stats should be provided, otherwise 0.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7987 */
Willy Tarreau295a8372011-03-10 11:25:07 +0100[diff] [blame]7988int stats_check_uri(struct stream_interface *si, struct http_txn *txn, struct proxy *backend)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7989{
7990 struct uri_auth *uri_auth = backend->uri_auth;
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]7991 struct http_msg *msg = &txn->req;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]7992 const char *uri = ci_head(msg->chn)+ msg->sl.rq.u;
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7993
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7994 if (!uri_auth)
7995 return 0;
7996
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7997 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]7998 return 0;
7999
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]8000 /* check URI size */
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]8001 if (uri_auth->uri_len > msg->sl.rq.u_l)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8002 return 0;
8003
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]8004 if (memcmp(uri, uri_auth->uri_prefix, uri_auth->uri_len) != 0)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8005 return 0;
8006
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8007 return 1;
8008}
8009
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8010/*
8011 * Capture a bad request or response and archive it in the proxy's structure.
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8012 * By default it tries to report the error position as msg->err_pos. However if
8013 * this one is not set, it will then report msg->next, which is the last known
8014 * parsing point. The function is able to deal with wrapping buffers. It always
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8015 * displays buffers as a contiguous area starting at buf->p.
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8016 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]8017void http_capture_bad_message(struct proxy *proxy, struct error_snapshot *es, struct stream *s,
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]8018 struct http_msg *msg,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]8019 enum h1_state state, struct proxy *other_end)
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8020{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8021 struct session *sess = strm_sess(s);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8022 struct channel *chn = msg->chn;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8023 int len1, len2;
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]8024
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]8025 HA_SPIN_LOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8026 es->len = MIN(ci_data(chn), global.tune.bufsize);
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]8027 len1 = b_wrap(&chn->buf) - ci_head(chn);
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8028 len1 = MIN(len1, es->len);
8029 len2 = es->len - len1; /* remaining data if buffer wraps */
8030
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]8031 if (!es->buf)
8032 es->buf = malloc(global.tune.bufsize);
8033
8034 if (es->buf) {
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8035 memcpy(es->buf, ci_head(chn), len1);
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]8036 if (len2)
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]8037 memcpy(es->buf + len1, b_orig(&chn->buf), len2);
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]8038 }
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]8039
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8040 if (msg->err_pos >= 0)
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8041 es->pos = msg->err_pos;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]8042 else
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8043 es->pos = msg->next;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]8044
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8045 es->when = date; // user-visible date
8046 es->sid = s->uniq_id;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]8047 es->srv = objt_server(s->target);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8048 es->oe = other_end;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8049 if (objt_conn(sess->origin))
8050 es->src = __objt_conn(sess->origin)->addr.from;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]8051 else
8052 memset(&es->src, 0, sizeof(es->src));
8053
Willy Tarreau078272e2010-12-12 12:46:33 +0100[diff] [blame]8054 es->state = state;
Willy Tarreau10479e42010-12-12 14:00:34 +0100[diff] [blame]8055 es->ev_id = error_snapshot_id++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8056 es->b_flags = chn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]8057 es->s_flags = s->flags;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8058 es->t_flags = s->txn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]8059 es->m_flags = msg->flags;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8060 es->b_out = co_data(chn);
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]8061 es->b_wrap = b_wrap(&chn->buf) - ci_head(chn);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8062 es->b_tot = chn->total;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]8063 es->m_clen = msg->chunk_len;
8064 es->m_blen = msg->body_len;
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]8065 HA_SPIN_UNLOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8066}
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8067
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8068/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
8069 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
8070 * performed over the whole headers. Otherwise it must contain a valid header
8071 * context, initialised with ctx->idx=0 for the first lookup in a series. If
8072 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
8073 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
8074 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8075 * -1. The value fetch stops at commas, so this function is suited for use with
8076 * list headers.
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8077 * The return value is 0 if nothing was found, or non-zero otherwise.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8078 */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]8079unsigned int http_get_hdr(const struct http_msg *msg, const char *hname, int hlen,
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8080 struct hdr_idx *idx, int occ,
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]8081 struct hdr_ctx *ctx, char **vptr, size_t *vlen)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8082{
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8083 struct hdr_ctx local_ctx;
8084 char *ptr_hist[MAX_HDR_HISTORY];
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]8085 unsigned int len_hist[MAX_HDR_HISTORY];
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8086 unsigned int hist_ptr;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8087 int found;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8088
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8089 if (!ctx) {
8090 local_ctx.idx = 0;
8091 ctx = &local_ctx;
8092 }
8093
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8094 if (occ >= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8095 /* search from the beginning */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8096 while (http_find_header2(hname, hlen, ci_head(msg->chn), idx, ctx)) {
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8097 occ--;
8098 if (occ <= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8099 *vptr = ctx->line + ctx->val;
8100 *vlen = ctx->vlen;
8101 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8102 }
8103 }
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8104 return 0;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8105 }
8106
8107 /* negative occurrence, we scan all the list then walk back */
8108 if (-occ > MAX_HDR_HISTORY)
8109 return 0;
8110
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8111 found = hist_ptr = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8112 while (http_find_header2(hname, hlen, ci_head(msg->chn), idx, ctx)) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8113 ptr_hist[hist_ptr] = ctx->line + ctx->val;
8114 len_hist[hist_ptr] = ctx->vlen;
8115 if (++hist_ptr >= MAX_HDR_HISTORY)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8116 hist_ptr = 0;
8117 found++;
8118 }
8119 if (-occ > found)
8120 return 0;
8121 /* 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]8122 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
8123 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
8124 * to remain in the 0..9 range.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8125 */
Willy Tarreau67dad272013-06-12 22:27:44 +0200[diff] [blame]8126 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8127 if (hist_ptr >= MAX_HDR_HISTORY)
8128 hist_ptr -= MAX_HDR_HISTORY;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8129 *vptr = ptr_hist[hist_ptr];
8130 *vlen = len_hist[hist_ptr];
8131 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8132}
8133
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8134/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
8135 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
8136 * performed over the whole headers. Otherwise it must contain a valid header
8137 * context, initialised with ctx->idx=0 for the first lookup in a series. If
8138 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
8139 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
8140 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
8141 * -1. This function differs from http_get_hdr() in that it only returns full
8142 * line header values and does not stop at commas.
8143 * The return value is 0 if nothing was found, or non-zero otherwise.
8144 */
8145unsigned int http_get_fhdr(const struct http_msg *msg, const char *hname, int hlen,
8146 struct hdr_idx *idx, int occ,
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]8147 struct hdr_ctx *ctx, char **vptr, size_t *vlen)
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8148{
8149 struct hdr_ctx local_ctx;
8150 char *ptr_hist[MAX_HDR_HISTORY];
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]8151 unsigned int len_hist[MAX_HDR_HISTORY];
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8152 unsigned int hist_ptr;
8153 int found;
8154
8155 if (!ctx) {
8156 local_ctx.idx = 0;
8157 ctx = &local_ctx;
8158 }
8159
8160 if (occ >= 0) {
8161 /* search from the beginning */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8162 while (http_find_full_header2(hname, hlen, ci_head(msg->chn), idx, ctx)) {
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8163 occ--;
8164 if (occ <= 0) {
8165 *vptr = ctx->line + ctx->val;
8166 *vlen = ctx->vlen;
8167 return 1;
8168 }
8169 }
8170 return 0;
8171 }
8172
8173 /* negative occurrence, we scan all the list then walk back */
8174 if (-occ > MAX_HDR_HISTORY)
8175 return 0;
8176
8177 found = hist_ptr = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8178 while (http_find_full_header2(hname, hlen, ci_head(msg->chn), idx, ctx)) {
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8179 ptr_hist[hist_ptr] = ctx->line + ctx->val;
8180 len_hist[hist_ptr] = ctx->vlen;
8181 if (++hist_ptr >= MAX_HDR_HISTORY)
8182 hist_ptr = 0;
8183 found++;
8184 }
8185 if (-occ > found)
8186 return 0;
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]8187
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8188 /* 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]8189 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
8190 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
8191 * to remain in the 0..9 range.
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8192 */
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]8193 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8194 if (hist_ptr >= MAX_HDR_HISTORY)
8195 hist_ptr -= MAX_HDR_HISTORY;
8196 *vptr = ptr_hist[hist_ptr];
8197 *vlen = len_hist[hist_ptr];
8198 return 1;
8199}
8200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]8201/*
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]8202 * Print a debug line with a header. Always stop at the first CR or LF char,
8203 * so it is safe to pass it a full buffer if needed. If <err> is not NULL, an
8204 * arrow is printed after the line which contains the pointer.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8205 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8206void debug_hdr(const char *dir, struct stream *s, const char *start, const char *end)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8207{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8208 struct session *sess = strm_sess(s);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]8209 int max;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8210
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8211 chunk_printf(&trash, "%08x:%s.%s[%04x:%04x]: ", s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]8212 dir,
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]8213 objt_conn(sess->origin) ? (unsigned short)objt_conn(sess->origin)->handle.fd : -1,
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]8214 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]8215
8216 for (max = 0; start + max < end; max++)
8217 if (start[max] == '\r' || start[max] == '\n')
8218 break;
8219
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]8220 UBOUND(max, trash.size - trash.data - 3);
8221 trash.data += strlcpy2(trash.area + trash.data, start, max + 1);
8222 trash.area[trash.data++] = '\n';
8223 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8224}
8225
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8226
8227/* Allocate a new HTTP transaction for stream <s> unless there is one already.
8228 * The hdr_idx is allocated as well. In case of allocation failure, everything
8229 * allocated is freed and NULL is returned. Otherwise the new transaction is
8230 * assigned to the stream and returned.
8231 */
8232struct http_txn *http_alloc_txn(struct stream *s)
8233{
8234 struct http_txn *txn = s->txn;
8235
8236 if (txn)
8237 return txn;
8238
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8239 txn = pool_alloc(pool_head_http_txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8240 if (!txn)
8241 return txn;
8242
8243 txn->hdr_idx.size = global.tune.max_http_hdr;
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8244 txn->hdr_idx.v = pool_alloc(pool_head_hdr_idx);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8245 if (!txn->hdr_idx.v) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8246 pool_free(pool_head_http_txn, txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8247 return NULL;
8248 }
8249
8250 s->txn = txn;
8251 return txn;
8252}
8253
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8254void http_txn_reset_req(struct http_txn *txn)
8255{
8256 txn->req.flags = 0;
8257 txn->req.sol = txn->req.eol = txn->req.eoh = 0; /* relative to the buffer */
8258 txn->req.next = 0;
8259 txn->req.chunk_len = 0LL;
8260 txn->req.body_len = 0LL;
8261 txn->req.msg_state = HTTP_MSG_RQBEFORE; /* at the very beginning of the request */
8262}
8263
8264void http_txn_reset_res(struct http_txn *txn)
8265{
8266 txn->rsp.flags = 0;
8267 txn->rsp.sol = txn->rsp.eol = txn->rsp.eoh = 0; /* relative to the buffer */
8268 txn->rsp.next = 0;
8269 txn->rsp.chunk_len = 0LL;
8270 txn->rsp.body_len = 0LL;
8271 txn->rsp.msg_state = HTTP_MSG_RPBEFORE; /* at the very beginning of the response */
8272}
8273
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8274/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8275 * Initialize a new HTTP transaction for stream <s>. It is assumed that all
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8276 * the required fields are properly allocated and that we only need to (re)init
8277 * them. This should be used before processing any new request.
8278 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8279void http_init_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8280{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8281 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8282 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8283
8284 txn->flags = 0;
8285 txn->status = -1;
8286
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]8287 txn->cookie_first_date = 0;
8288 txn->cookie_last_date = 0;
8289
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8290 txn->srv_cookie = NULL;
8291 txn->cli_cookie = NULL;
8292 txn->uri = NULL;
8293
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8294 http_txn_reset_req(txn);
8295 http_txn_reset_res(txn);
8296
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8297 txn->req.chn = &s->req;
8298 txn->rsp.chn = &s->res;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8299
8300 txn->auth.method = HTTP_AUTH_UNKNOWN;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8301
8302 txn->req.err_pos = txn->rsp.err_pos = -2; /* block buggy requests/responses */
8303 if (fe->options2 & PR_O2_REQBUG_OK)
8304 txn->req.err_pos = -1; /* let buggy requests pass */
8305
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8306 if (txn->hdr_idx.v)
8307 hdr_idx_init(&txn->hdr_idx);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]8308
8309 vars_init(&s->vars_txn, SCOPE_TXN);
8310 vars_init(&s->vars_reqres, SCOPE_REQ);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8311}
8312
8313/* to be used at the end of a transaction */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8314void http_end_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8315{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8316 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8317 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8318
8319 /* these ones will have been dynamically allocated */
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8320 pool_free(pool_head_requri, txn->uri);
8321 pool_free(pool_head_capture, txn->cli_cookie);
8322 pool_free(pool_head_capture, txn->srv_cookie);
8323 pool_free(pool_head_uniqueid, s->unique_id);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8324
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]8325 s->unique_id = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8326 txn->uri = NULL;
8327 txn->srv_cookie = NULL;
8328 txn->cli_cookie = NULL;
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8329
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8330 if (s->req_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8331 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8332 for (h = fe->req_cap; h; h = h->next)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8333 pool_free(h->pool, s->req_cap[h->index]);
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8334 memset(s->req_cap, 0, fe->nb_req_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8335 }
8336
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8337 if (s->res_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8338 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8339 for (h = fe->rsp_cap; h; h = h->next)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8340 pool_free(h->pool, s->res_cap[h->index]);
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8341 memset(s->res_cap, 0, fe->nb_rsp_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8342 }
8343
Willy Tarreau6204cd92016-03-10 16:33:04 +0100[diff] [blame]8344 vars_prune(&s->vars_txn, s->sess, s);
8345 vars_prune(&s->vars_reqres, s->sess, s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8346}
8347
8348/* to be used at the end of a transaction to prepare a new one */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8349void http_reset_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8350{
8351 http_end_txn(s);
8352 http_init_txn(s);
8353
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]8354 /* reinitialise the current rule list pointer to NULL. We are sure that
8355 * any rulelist match the NULL pointer.
8356 */
8357 s->current_rule_list = NULL;
8358
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8359 s->be = strm_fe(s);
8360 s->logs.logwait = strm_fe(s)->to_log;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]8361 s->logs.level = 0;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8362 stream_del_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]8363 s->target = NULL;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8364 /* re-init store persistence */
8365 s->store_count = 0;
Willy Tarreau1f0da242014-01-25 11:01:50 +0100[diff] [blame]8366 s->uniq_id = global.req_count++;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8367
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8368 s->req.flags |= CF_READ_DONTWAIT; /* one read is usually enough */
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8369
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8370 /* We must trim any excess data from the response buffer, because we
8371 * may have blocked an invalid response from a server that we don't
8372 * want to accidentely forward once we disable the analysers, nor do
8373 * we want those data to come along with next response. A typical
8374 * example of such data would be from a buggy server responding to
8375 * a HEAD with some data, or sending more than the advertised
8376 * content-length.
8377 */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]8378 if (unlikely(ci_data(&s->res)))
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]8379 b_set_data(&s->res.buf, co_data(&s->res));
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8380
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]8381 /* Now we can realign the response buffer */
Willy Tarreaud5b343b2018-06-06 06:42:46 +0200[diff] [blame]8382 c_realign_if_empty(&s->res);
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]8383
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8384 s->req.rto = strm_fe(s)->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8385 s->req.wto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8386
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8387 s->res.rto = TICK_ETERNITY;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8388 s->res.wto = strm_fe(s)->timeout.client;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8389
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8390 s->req.rex = TICK_ETERNITY;
8391 s->req.wex = TICK_ETERNITY;
8392 s->req.analyse_exp = TICK_ETERNITY;
8393 s->res.rex = TICK_ETERNITY;
8394 s->res.wex = TICK_ETERNITY;
8395 s->res.analyse_exp = TICK_ETERNITY;
Hongbo Longe39683c2017-03-10 18:41:51 +0100[diff] [blame]8396 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8397}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8398
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8399void free_http_res_rules(struct list *r)
8400{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8401 struct act_rule *tr, *pr;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8402
8403 list_for_each_entry_safe(pr, tr, r, list) {
8404 LIST_DEL(&pr->list);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8405 regex_free(&pr->arg.hdr_add.re);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8406 free(pr);
8407 }
8408}
8409
8410void free_http_req_rules(struct list *r)
8411{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8412 struct act_rule *tr, *pr;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8413
8414 list_for_each_entry_safe(pr, tr, r, list) {
8415 LIST_DEL(&pr->list);
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8416 if (pr->action == ACT_HTTP_REQ_AUTH)
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8417 free(pr->arg.auth.realm);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8418
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8419 regex_free(&pr->arg.hdr_add.re);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8420 free(pr);
8421 }
8422}
8423
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8424/* parse an "http-request" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8425struct 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]8426{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8427 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8428 struct action_kw *custom = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8429 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8430 char *error;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8431
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]8432 rule = calloc(1, sizeof(*rule));
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8433 if (!rule) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8434 ha_alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8435 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8436 }
8437
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8438 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8439 rule->action = ACT_ACTION_ALLOW;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8440 cur_arg = 1;
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8441 } else if (!strcmp(args[0], "deny") || !strcmp(args[0], "block") || !strcmp(args[0], "tarpit")) {
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8442 int code;
8443 int hc;
8444
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8445 if (!strcmp(args[0], "tarpit")) {
8446 rule->action = ACT_HTTP_REQ_TARPIT;
8447 rule->deny_status = HTTP_ERR_500;
8448 }
8449 else {
8450 rule->action = ACT_ACTION_DENY;
8451 rule->deny_status = HTTP_ERR_403;
8452 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8453 cur_arg = 1;
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8454 if (strcmp(args[cur_arg], "deny_status") == 0) {
8455 cur_arg++;
8456 if (!args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8457 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing status code.\n",
8458 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8459 goto out_err;
8460 }
8461
8462 code = atol(args[cur_arg]);
8463 cur_arg++;
8464 for (hc = 0; hc < HTTP_ERR_SIZE; hc++) {
8465 if (http_err_codes[hc] == code) {
8466 rule->deny_status = hc;
8467 break;
8468 }
8469 }
8470
8471 if (hc >= HTTP_ERR_SIZE) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8472 ha_warning("parsing [%s:%d] : status code %d not handled, using default code %d.\n",
8473 file, linenum, code, http_err_codes[rule->deny_status]);
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8474 }
8475 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8476 } else if (!strcmp(args[0], "auth")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8477 rule->action = ACT_HTTP_REQ_AUTH;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8478 cur_arg = 1;
8479
8480 while(*args[cur_arg]) {
8481 if (!strcmp(args[cur_arg], "realm")) {
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8482 rule->arg.auth.realm = strdup(args[cur_arg + 1]);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8483 cur_arg+=2;
8484 continue;
8485 } else
8486 break;
8487 }
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8488 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8489 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8490 cur_arg = 1;
8491
8492 if (!*args[cur_arg] ||
8493 (*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]8494 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer value).\n",
8495 file, linenum, args[0]);
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8496 goto out_err;
8497 }
8498 rule->arg.nice = atoi(args[cur_arg]);
8499 if (rule->arg.nice < -1024)
8500 rule->arg.nice = -1024;
8501 else if (rule->arg.nice > 1024)
8502 rule->arg.nice = 1024;
8503 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8504 } else if (!strcmp(args[0], "set-tos")) {
8505#ifdef IP_TOS
8506 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8507 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8508 cur_arg = 1;
8509
8510 if (!*args[cur_arg] ||
8511 (*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]8512 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8513 file, linenum, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8514 goto out_err;
8515 }
8516
8517 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8518 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8519 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8520 file, linenum, err, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8521 goto out_err;
8522 }
8523 cur_arg++;
8524#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8525 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]8526 goto out_err;
8527#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8528 } else if (!strcmp(args[0], "set-mark")) {
8529#ifdef SO_MARK
8530 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8531 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8532 cur_arg = 1;
8533
8534 if (!*args[cur_arg] ||
8535 (*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]8536 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8537 file, linenum, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8538 goto out_err;
8539 }
8540
8541 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8542 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8543 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8544 file, linenum, err, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8545 goto out_err;
8546 }
8547 cur_arg++;
8548 global.last_checks |= LSTCHK_NETADM;
8549#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8550 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]8551 goto out_err;
8552#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8553 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8554 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8555 cur_arg = 1;
8556
8557 if (!*args[cur_arg] ||
8558 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8559 bad_log_level:
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8560 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (log level name or 'silent').\n",
8561 file, linenum, args[0]);
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8562 goto out_err;
8563 }
8564 if (strcmp(args[cur_arg], "silent") == 0)
8565 rule->arg.loglevel = -1;
8566 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
8567 goto bad_log_level;
8568 cur_arg++;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8569 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8570 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8571 cur_arg = 1;
8572
Willy Tarreau8d1c5162013-04-03 14:13:58 +0200[diff] [blame]8573 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8574 (*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]8575 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8576 file, linenum, args[0]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8577 goto out_err;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8578 }
8579
8580 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8581 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8582 LIST_INIT(&rule->arg.hdr_add.fmt);
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]8583
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8584 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8585 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8586 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]8587 (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]8588 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8589 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8590 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8591 goto out_err;
8592 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8593 free(proxy->conf.lfs_file);
8594 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8595 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8596 cur_arg += 2;
Willy Tarreaub8543922014-06-17 18:58:26 +0200[diff] [blame]8597 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8598 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8599 cur_arg = 1;
8600
8601 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann92df3702014-06-24 11:10:00 +0200[diff] [blame]8602 (*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]8603 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 3 arguments.\n",
8604 file, linenum, args[0]);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8605 goto out_err;
8606 }
8607
8608 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8609 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8610 LIST_INIT(&rule->arg.hdr_add.fmt);
8611
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8612 error = NULL;
8613 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]8614 ha_alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8615 args[cur_arg + 1], error);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8616 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8617 goto out_err;
8618 }
8619
8620 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8621 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8622 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]8623 (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]8624 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8625 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8626 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8627 goto out_err;
8628 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8629
8630 free(proxy->conf.lfs_file);
8631 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8632 proxy->conf.lfs_line = proxy->conf.args.line;
8633 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8634 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8635 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8636 cur_arg = 1;
8637
8638 if (!*args[cur_arg] ||
8639 (*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]8640 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8641 file, linenum, args[0]);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8642 goto out_err;
8643 }
8644
8645 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8646 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8647
8648 proxy->conf.args.ctx = ARGC_HRQ;
8649 free(proxy->conf.lfs_file);
8650 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8651 proxy->conf.lfs_line = proxy->conf.args.line;
8652 cur_arg += 1;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]8653 } else if (strncmp(args[0], "track-sc", 8) == 0) {
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8654 struct sample_expr *expr;
8655 unsigned int where;
8656 char *err = NULL;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]8657 unsigned int tsc_num;
8658 const char *tsc_num_str;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8659
8660 cur_arg = 1;
8661 proxy->conf.args.ctx = ARGC_TRK;
8662
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]8663 tsc_num_str = &args[0][8];
8664 if (cfg_parse_track_sc_num(&tsc_num, tsc_num_str, tsc_num_str + strlen(tsc_num_str), &err) == -1) {
8665 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8666 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
8667 free(err);
8668 goto out_err;
8669 }
8670
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8671 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
8672 if (!expr) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8673 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8674 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8675 free(err);
8676 goto out_err;
8677 }
8678
8679 where = 0;
8680 if (proxy->cap & PR_CAP_FE)
8681 where |= SMP_VAL_FE_HRQ_HDR;
8682 if (proxy->cap & PR_CAP_BE)
8683 where |= SMP_VAL_BE_HRQ_HDR;
8684
8685 if (!(expr->fetch->val & where)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8686 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule :"
8687 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
8688 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
8689 args[cur_arg-1], sample_src_names(expr->fetch->use));
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8690 free(expr);
8691 goto out_err;
8692 }
8693
8694 if (strcmp(args[cur_arg], "table") == 0) {
8695 cur_arg++;
8696 if (!args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8697 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing table name.\n",
8698 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8699 free(expr);
8700 goto out_err;
8701 }
8702 /* we copy the table name for now, it will be resolved later */
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8703 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8704 cur_arg++;
8705 }
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8706 rule->arg.trk_ctr.expr = expr;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]8707 rule->action = ACT_ACTION_TRK_SC0 + tsc_num;
Christopher Faulet78880fb2017-09-18 14:43:55 +0200[diff] [blame]8708 rule->check_ptr = check_trk_action;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8709 } else if (strcmp(args[0], "redirect") == 0) {
8710 struct redirect_rule *redir;
Willy Tarreau6d4890c2013-11-18 18:04:25 +0100[diff] [blame]8711 char *errmsg = NULL;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8712
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]8713 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]8714 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8715 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8716 goto out_err;
8717 }
8718
8719 /* this redirect rule might already contain a parsed condition which
8720 * we'll pass to the http-request rule.
8721 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8722 rule->action = ACT_HTTP_REDIR;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8723 rule->arg.redir = redir;
8724 rule->cond = redir->cond;
8725 redir->cond = NULL;
8726 cur_arg = 2;
8727 return rule;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8728 } else if (strncmp(args[0], "add-acl", 7) == 0) {
8729 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8730 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8731 /*
8732 * '+ 8' for 'add-acl('
8733 * '- 9' for 'add-acl(' + trailing ')'
8734 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8735 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8736
8737 cur_arg = 1;
8738
8739 if (!*args[cur_arg] ||
8740 (*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]8741 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8742 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8743 goto out_err;
8744 }
8745
8746 LIST_INIT(&rule->arg.map.key);
8747 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8748 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8749 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]8750 (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]8751 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8752 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8753 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8754 goto out_err;
8755 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8756 free(proxy->conf.lfs_file);
8757 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8758 proxy->conf.lfs_line = proxy->conf.args.line;
8759 cur_arg += 1;
8760 } else if (strncmp(args[0], "del-acl", 7) == 0) {
8761 /* http-request del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8762 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8763 /*
8764 * '+ 8' for 'del-acl('
8765 * '- 9' for 'del-acl(' + trailing ')'
8766 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8767 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8768
8769 cur_arg = 1;
8770
8771 if (!*args[cur_arg] ||
8772 (*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]8773 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8774 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8775 goto out_err;
8776 }
8777
8778 LIST_INIT(&rule->arg.map.key);
8779 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8780 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8781 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]8782 (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]8783 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8784 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8785 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8786 goto out_err;
8787 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8788 free(proxy->conf.lfs_file);
8789 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8790 proxy->conf.lfs_line = proxy->conf.args.line;
8791 cur_arg += 1;
8792 } else if (strncmp(args[0], "del-map", 7) == 0) {
8793 /* http-request del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8794 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8795 /*
8796 * '+ 8' for 'del-map('
8797 * '- 9' for 'del-map(' + trailing ')'
8798 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8799 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8800
8801 cur_arg = 1;
8802
8803 if (!*args[cur_arg] ||
8804 (*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]8805 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8806 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8807 goto out_err;
8808 }
8809
8810 LIST_INIT(&rule->arg.map.key);
8811 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8812 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8813 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]8814 (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]8815 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8816 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8817 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8818 goto out_err;
8819 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8820 free(proxy->conf.lfs_file);
8821 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8822 proxy->conf.lfs_line = proxy->conf.args.line;
8823 cur_arg += 1;
8824 } else if (strncmp(args[0], "set-map", 7) == 0) {
8825 /* http-request set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8826 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8827 /*
8828 * '+ 8' for 'set-map('
8829 * '- 9' for 'set-map(' + trailing ')'
8830 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8831 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8832
8833 cur_arg = 1;
8834
8835 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8836 (*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]8837 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8838 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8839 goto out_err;
8840 }
8841
8842 LIST_INIT(&rule->arg.map.key);
8843 LIST_INIT(&rule->arg.map.value);
8844 proxy->conf.args.ctx = ARGC_HRQ;
8845
8846 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8847 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8848 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]8849 (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]8850 ha_alert("parsing [%s:%d]: 'http-request %s' key: %s.\n",
8851 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8852 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8853 goto out_err;
8854 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8855
8856 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8857 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8858 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]8859 (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]8860 ha_alert("parsing [%s:%d]: 'http-request %s' pattern: %s.\n",
8861 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8862 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8863 goto out_err;
8864 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8865 free(proxy->conf.lfs_file);
8866 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8867 proxy->conf.lfs_line = proxy->conf.args.line;
8868
8869 cur_arg += 2;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8870 } else if (((custom = action_http_req_custom(args[0])) != NULL)) {
8871 char *errmsg = NULL;
8872 cur_arg = 1;
8873 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]8874 rule->from = ACT_F_HTTP_REQ;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]8875 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]8876 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8877 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8878 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8879 free(errmsg);
8880 goto out_err;
8881 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8882 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]8883 action_build_list(&http_req_keywords.list, &trash);
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8884 ha_alert("parsing [%s:%d]: 'http-request' expects 'allow', 'deny', 'auth', 'redirect', "
8885 "'tarpit', 'add-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
8886 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', 'track-sc*'"
8887 "%s%s, but got '%s'%s.\n",
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]8888 file, linenum, *trash.area ? ", " : "", trash.area,
8889 args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8890 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8891 }
8892
8893 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
8894 struct acl_cond *cond;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]8895 char *errmsg = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8896
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]8897 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]8898 ha_alert("parsing [%s:%d] : error detected while parsing an 'http-request %s' condition : %s.\n",
8899 file, linenum, args[0], errmsg);
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]8900 free(errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8901 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8902 }
8903 rule->cond = cond;
8904 }
8905 else if (*args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8906 ha_alert("parsing [%s:%d]: 'http-request %s' expects 'realm' for 'auth' or"
8907 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
8908 file, linenum, args[0], args[cur_arg]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8909 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8910 }
8911
8912 return rule;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8913 out_err:
8914 free(rule);
8915 return NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8916}
8917
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8918/* parse an "http-respose" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8919struct 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]8920{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8921 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8922 struct action_kw *custom = NULL;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8923 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8924 char *error;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8925
8926 rule = calloc(1, sizeof(*rule));
8927 if (!rule) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8928 ha_alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8929 goto out_err;
8930 }
8931
8932 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8933 rule->action = ACT_ACTION_ALLOW;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8934 cur_arg = 1;
8935 } else if (!strcmp(args[0], "deny")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8936 rule->action = ACT_ACTION_DENY;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8937 cur_arg = 1;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8938 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8939 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8940 cur_arg = 1;
8941
8942 if (!*args[cur_arg] ||
8943 (*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]8944 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer value).\n",
8945 file, linenum, args[0]);
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8946 goto out_err;
8947 }
8948 rule->arg.nice = atoi(args[cur_arg]);
8949 if (rule->arg.nice < -1024)
8950 rule->arg.nice = -1024;
8951 else if (rule->arg.nice > 1024)
8952 rule->arg.nice = 1024;
8953 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8954 } else if (!strcmp(args[0], "set-tos")) {
8955#ifdef IP_TOS
8956 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8957 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8958 cur_arg = 1;
8959
8960 if (!*args[cur_arg] ||
8961 (*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]8962 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8963 file, linenum, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8964 goto out_err;
8965 }
8966
8967 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8968 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8969 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8970 file, linenum, err, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8971 goto out_err;
8972 }
8973 cur_arg++;
8974#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8975 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]8976 goto out_err;
8977#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8978 } else if (!strcmp(args[0], "set-mark")) {
8979#ifdef SO_MARK
8980 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8981 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8982 cur_arg = 1;
8983
8984 if (!*args[cur_arg] ||
8985 (*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]8986 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8987 file, linenum, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8988 goto out_err;
8989 }
8990
8991 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8992 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8993 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8994 file, linenum, err, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8995 goto out_err;
8996 }
8997 cur_arg++;
8998 global.last_checks |= LSTCHK_NETADM;
8999#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9000 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]9001 goto out_err;
9002#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9003 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9004 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9005 cur_arg = 1;
9006
9007 if (!*args[cur_arg] ||
9008 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9009 bad_log_level:
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9010 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (log level name or 'silent').\n",
9011 file, linenum, args[0]);
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9012 goto out_err;
9013 }
9014 if (strcmp(args[cur_arg], "silent") == 0)
9015 rule->arg.loglevel = -1;
Ruoshan Huangdd016782016-06-15 22:16:03 +0800[diff] [blame]9016 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9017 goto bad_log_level;
9018 cur_arg++;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9019 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9020 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9021 cur_arg = 1;
9022
9023 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9024 (*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]9025 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
9026 file, linenum, args[0]);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9027 goto out_err;
9028 }
9029
9030 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9031 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9032 LIST_INIT(&rule->arg.hdr_add.fmt);
9033
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]9034 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9035 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9036 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]9037 (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]9038 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9039 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9040 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9041 goto out_err;
9042 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9043 free(proxy->conf.lfs_file);
9044 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9045 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9046 cur_arg += 2;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9047 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9048 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9049 cur_arg = 1;
9050
9051 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann12cb00b2014-08-08 17:29:06 +0200[diff] [blame]9052 (*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]9053 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 3 arguments.\n",
9054 file, linenum, args[0]);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9055 goto out_err;
9056 }
9057
9058 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9059 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9060 LIST_INIT(&rule->arg.hdr_add.fmt);
9061
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]9062 error = NULL;
9063 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]9064 ha_alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
9065 args[cur_arg + 1], error);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]9066 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9067 goto out_err;
9068 }
9069
9070 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9071 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9072 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]9073 (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]9074 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9075 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9076 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9077 goto out_err;
9078 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9079
9080 free(proxy->conf.lfs_file);
9081 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9082 proxy->conf.lfs_line = proxy->conf.args.line;
9083 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9084 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9085 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9086 cur_arg = 1;
9087
9088 if (!*args[cur_arg] ||
9089 (*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]9090 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9091 file, linenum, args[0]);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9092 goto out_err;
9093 }
9094
9095 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9096 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9097
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9098 proxy->conf.args.ctx = ARGC_HRS;
9099 free(proxy->conf.lfs_file);
9100 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9101 proxy->conf.lfs_line = proxy->conf.args.line;
9102 cur_arg += 1;
9103 } else if (strncmp(args[0], "add-acl", 7) == 0) {
9104 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9105 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9106 /*
9107 * '+ 8' for 'add-acl('
9108 * '- 9' for 'add-acl(' + trailing ')'
9109 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9110 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9111
9112 cur_arg = 1;
9113
9114 if (!*args[cur_arg] ||
9115 (*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]9116 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9117 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9118 goto out_err;
9119 }
9120
9121 LIST_INIT(&rule->arg.map.key);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9122 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9123 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9124 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]9125 (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]9126 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9127 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9128 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9129 goto out_err;
9130 }
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9131 free(proxy->conf.lfs_file);
9132 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9133 proxy->conf.lfs_line = proxy->conf.args.line;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9134
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9135 cur_arg += 1;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9136 } else if (strncmp(args[0], "del-acl", 7) == 0) {
9137 /* http-response del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9138 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9139 /*
9140 * '+ 8' for 'del-acl('
9141 * '- 9' for 'del-acl(' + trailing ')'
9142 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9143 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9144
9145 cur_arg = 1;
9146
9147 if (!*args[cur_arg] ||
9148 (*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]9149 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9150 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9151 goto out_err;
9152 }
9153
9154 LIST_INIT(&rule->arg.map.key);
9155 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9156 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9157 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]9158 (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]9159 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9160 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9161 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9162 goto out_err;
9163 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9164 free(proxy->conf.lfs_file);
9165 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9166 proxy->conf.lfs_line = proxy->conf.args.line;
9167 cur_arg += 1;
9168 } else if (strncmp(args[0], "del-map", 7) == 0) {
9169 /* http-response del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9170 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9171 /*
9172 * '+ 8' for 'del-map('
9173 * '- 9' for 'del-map(' + trailing ')'
9174 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9175 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9176
9177 cur_arg = 1;
9178
9179 if (!*args[cur_arg] ||
9180 (*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]9181 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9182 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9183 goto out_err;
9184 }
9185
9186 LIST_INIT(&rule->arg.map.key);
9187 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9188 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9189 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]9190 (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]9191 ha_alert("parsing [%s:%d]: 'http-response %s' %s.\n",
9192 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9193 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9194 goto out_err;
9195 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9196 free(proxy->conf.lfs_file);
9197 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9198 proxy->conf.lfs_line = proxy->conf.args.line;
9199 cur_arg += 1;
9200 } else if (strncmp(args[0], "set-map", 7) == 0) {
9201 /* http-response set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9202 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9203 /*
9204 * '+ 8' for 'set-map('
9205 * '- 9' for 'set-map(' + trailing ')'
9206 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9207 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9208
9209 cur_arg = 1;
9210
9211 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9212 (*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]9213 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
9214 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9215 goto out_err;
9216 }
9217
9218 LIST_INIT(&rule->arg.map.key);
9219 LIST_INIT(&rule->arg.map.value);
9220
9221 proxy->conf.args.ctx = ARGC_HRS;
9222
9223 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9224 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9225 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]9226 (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]9227 ha_alert("parsing [%s:%d]: 'http-response %s' name: %s.\n",
9228 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9229 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9230 goto out_err;
9231 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9232
9233 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9234 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9235 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]9236 (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]9237 ha_alert("parsing [%s:%d]: 'http-response %s' value: %s.\n",
9238 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9239 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9240 goto out_err;
9241 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9242
9243 free(proxy->conf.lfs_file);
9244 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9245 proxy->conf.lfs_line = proxy->conf.args.line;
9246
9247 cur_arg += 2;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9248 } else if (strcmp(args[0], "redirect") == 0) {
9249 struct redirect_rule *redir;
9250 char *errmsg = NULL;
9251
9252 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]9253 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9254 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9255 goto out_err;
9256 }
9257
9258 /* this redirect rule might already contain a parsed condition which
9259 * we'll pass to the http-request rule.
9260 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9261 rule->action = ACT_HTTP_REDIR;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9262 rule->arg.redir = redir;
9263 rule->cond = redir->cond;
9264 redir->cond = NULL;
9265 cur_arg = 2;
9266 return rule;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]9267 } else if (strncmp(args[0], "track-sc", 8) == 0) {
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9268 struct sample_expr *expr;
9269 unsigned int where;
9270 char *err = NULL;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]9271 unsigned int tsc_num;
9272 const char *tsc_num_str;
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9273
9274 cur_arg = 1;
9275 proxy->conf.args.ctx = ARGC_TRK;
9276
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]9277 tsc_num_str = &args[0][8];
9278 if (cfg_parse_track_sc_num(&tsc_num, tsc_num_str, tsc_num_str + strlen(tsc_num_str), &err) == -1) {
9279 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9280 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
9281 free(err);
9282 goto out_err;
9283 }
9284
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9285 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
9286 if (!expr) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9287 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9288 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9289 free(err);
9290 goto out_err;
9291 }
9292
9293 where = 0;
9294 if (proxy->cap & PR_CAP_FE)
9295 where |= SMP_VAL_FE_HRS_HDR;
9296 if (proxy->cap & PR_CAP_BE)
9297 where |= SMP_VAL_BE_HRS_HDR;
9298
9299 if (!(expr->fetch->val & where)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9300 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule :"
9301 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
9302 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
9303 args[cur_arg-1], sample_src_names(expr->fetch->use));
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9304 free(expr);
9305 goto out_err;
9306 }
9307
9308 if (strcmp(args[cur_arg], "table") == 0) {
9309 cur_arg++;
9310 if (!args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9311 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : missing table name.\n",
9312 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9313 free(expr);
9314 goto out_err;
9315 }
9316 /* we copy the table name for now, it will be resolved later */
9317 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
9318 cur_arg++;
9319 }
9320 rule->arg.trk_ctr.expr = expr;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]9321 rule->action = ACT_ACTION_TRK_SC0 + tsc_num;
Christopher Faulet78880fb2017-09-18 14:43:55 +0200[diff] [blame]9322 rule->check_ptr = check_trk_action;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9323 } else if (((custom = action_http_res_custom(args[0])) != NULL)) {
9324 char *errmsg = NULL;
9325 cur_arg = 1;
9326 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]9327 rule->from = ACT_F_HTTP_RES;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]9328 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]9329 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9330 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9331 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9332 free(errmsg);
9333 goto out_err;
9334 }
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9335 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9336 action_build_list(&http_res_keywords.list, &trash);
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9337 ha_alert("parsing [%s:%d]: 'http-response' expects 'allow', 'deny', 'redirect', "
9338 "'add-header', 'del-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
9339 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', 'track-sc*'"
9340 "%s%s, but got '%s'%s.\n",
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9341 file, linenum, *trash.area ? ", " : "", trash.area,
9342 args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9343 goto out_err;
9344 }
9345
9346 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
9347 struct acl_cond *cond;
9348 char *errmsg = NULL;
9349
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]9350 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]9351 ha_alert("parsing [%s:%d] : error detected while parsing an 'http-response %s' condition : %s.\n",
9352 file, linenum, args[0], errmsg);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9353 free(errmsg);
9354 goto out_err;
9355 }
9356 rule->cond = cond;
9357 }
9358 else if (*args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9359 ha_alert("parsing [%s:%d]: 'http-response %s' expects"
9360 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
9361 file, linenum, args[0], args[cur_arg]);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9362 goto out_err;
9363 }
9364
9365 return rule;
9366 out_err:
9367 free(rule);
9368 return NULL;
9369}
9370
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9371/* Parses a redirect rule. Returns the redirect rule on success or NULL on error,
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9372 * 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]9373 * dynamic log-format rule instead of a static string. Parameter <dir> indicates
9374 * the direction of the rule, and equals 0 for request, non-zero for responses.
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9375 */
9376struct redirect_rule *http_parse_redirect_rule(const char *file, int linenum, struct proxy *curproxy,
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9377 const char **args, char **errmsg, int use_fmt, int dir)
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9378{
9379 struct redirect_rule *rule;
9380 int cur_arg;
9381 int type = REDIRECT_TYPE_NONE;
9382 int code = 302;
9383 const char *destination = NULL;
9384 const char *cookie = NULL;
9385 int cookie_set = 0;
9386 unsigned int flags = REDIRECT_FLAG_NONE;
9387 struct acl_cond *cond = NULL;
9388
9389 cur_arg = 0;
9390 while (*(args[cur_arg])) {
9391 if (strcmp(args[cur_arg], "location") == 0) {
9392 if (!*args[cur_arg + 1])
9393 goto missing_arg;
9394
9395 type = REDIRECT_TYPE_LOCATION;
9396 cur_arg++;
9397 destination = args[cur_arg];
9398 }
9399 else if (strcmp(args[cur_arg], "prefix") == 0) {
9400 if (!*args[cur_arg + 1])
9401 goto missing_arg;
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9402 type = REDIRECT_TYPE_PREFIX;
9403 cur_arg++;
9404 destination = args[cur_arg];
9405 }
9406 else if (strcmp(args[cur_arg], "scheme") == 0) {
9407 if (!*args[cur_arg + 1])
9408 goto missing_arg;
9409
9410 type = REDIRECT_TYPE_SCHEME;
9411 cur_arg++;
9412 destination = args[cur_arg];
9413 }
9414 else if (strcmp(args[cur_arg], "set-cookie") == 0) {
9415 if (!*args[cur_arg + 1])
9416 goto missing_arg;
9417
9418 cur_arg++;
9419 cookie = args[cur_arg];
9420 cookie_set = 1;
9421 }
9422 else if (strcmp(args[cur_arg], "clear-cookie") == 0) {
9423 if (!*args[cur_arg + 1])
9424 goto missing_arg;
9425
9426 cur_arg++;
9427 cookie = args[cur_arg];
9428 cookie_set = 0;
9429 }
9430 else if (strcmp(args[cur_arg], "code") == 0) {
9431 if (!*args[cur_arg + 1])
9432 goto missing_arg;
9433
9434 cur_arg++;
9435 code = atol(args[cur_arg]);
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9436 if (code < 301 || code > 308 || (code > 303 && code < 307)) {
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9437 memprintf(errmsg,
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9438 "'%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]9439 args[cur_arg - 1], args[cur_arg]);
9440 return NULL;
9441 }
9442 }
9443 else if (!strcmp(args[cur_arg],"drop-query")) {
9444 flags |= REDIRECT_FLAG_DROP_QS;
9445 }
9446 else if (!strcmp(args[cur_arg],"append-slash")) {
9447 flags |= REDIRECT_FLAG_APPEND_SLASH;
9448 }
9449 else if (strcmp(args[cur_arg], "if") == 0 ||
9450 strcmp(args[cur_arg], "unless") == 0) {
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]9451 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]9452 if (!cond) {
9453 memprintf(errmsg, "error in condition: %s", *errmsg);
9454 return NULL;
9455 }
9456 break;
9457 }
9458 else {
9459 memprintf(errmsg,
9460 "expects 'code', 'prefix', 'location', 'scheme', 'set-cookie', 'clear-cookie', 'drop-query' or 'append-slash' (was '%s')",
9461 args[cur_arg]);
9462 return NULL;
9463 }
9464 cur_arg++;
9465 }
9466
9467 if (type == REDIRECT_TYPE_NONE) {
9468 memprintf(errmsg, "redirection type expected ('prefix', 'location', or 'scheme')");
9469 return NULL;
9470 }
9471
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9472 if (dir && type != REDIRECT_TYPE_LOCATION) {
9473 memprintf(errmsg, "response only supports redirect type 'location'");
9474 return NULL;
9475 }
9476
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]9477 rule = calloc(1, sizeof(*rule));
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9478 rule->cond = cond;
Willy Tarreau60e08382013-12-03 00:48:45 +0100[diff] [blame]9479 LIST_INIT(&rule->rdr_fmt);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9480
9481 if (!use_fmt) {
9482 /* old-style static redirect rule */
9483 rule->rdr_str = strdup(destination);
9484 rule->rdr_len = strlen(destination);
9485 }
9486 else {
9487 /* log-format based redirect rule */
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9488
9489 /* Parse destination. Note that in the REDIRECT_TYPE_PREFIX case,
9490 * if prefix == "/", we don't want to add anything, otherwise it
9491 * makes it hard for the user to configure a self-redirection.
9492 */
Godbachd9722032014-12-18 15:44:58 +0800[diff] [blame]9493 curproxy->conf.args.ctx = ARGC_RDR;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9494 if (!(type == REDIRECT_TYPE_PREFIX && destination[0] == '/' && destination[1] == '\0')) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9495 if (!parse_logformat_string(destination, curproxy, &rule->rdr_fmt, LOG_OPT_HTTP,
9496 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]9497 : (curproxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9498 errmsg)) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9499 return NULL;
9500 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9501 free(curproxy->conf.lfs_file);
9502 curproxy->conf.lfs_file = strdup(curproxy->conf.args.file);
9503 curproxy->conf.lfs_line = curproxy->conf.args.line;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9504 }
9505 }
9506
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9507 if (cookie) {
9508 /* depending on cookie_set, either we want to set the cookie, or to clear it.
9509 * a clear consists in appending "; path=/; Max-Age=0;" at the end.
9510 */
9511 rule->cookie_len = strlen(cookie);
9512 if (cookie_set) {
9513 rule->cookie_str = malloc(rule->cookie_len + 10);
9514 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9515 memcpy(rule->cookie_str + rule->cookie_len, "; path=/;", 10);
9516 rule->cookie_len += 9;
9517 } else {
9518 rule->cookie_str = malloc(rule->cookie_len + 21);
9519 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9520 memcpy(rule->cookie_str + rule->cookie_len, "; path=/; Max-Age=0;", 21);
9521 rule->cookie_len += 20;
9522 }
9523 }
9524 rule->type = type;
9525 rule->code = code;
9526 rule->flags = flags;
9527 LIST_INIT(&rule->list);
9528 return rule;
9529
9530 missing_arg:
9531 memprintf(errmsg, "missing argument for '%s'", args[cur_arg]);
9532 return NULL;
9533}
9534
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9535/************************************************************************/
9536/* The code below is dedicated to ACL parsing and matching */
9537/************************************************************************/
9538
9539
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9540/* This function ensures that the prerequisites for an L7 fetch are ready,
9541 * which means that a request or response is ready. If some data is missing,
9542 * 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]9543 * to extract data from L7. If <req_vol> is non-null during a request prefetch,
9544 * another test is made to ensure the required information is not gone.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9545 *
9546 * The function returns :
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9547 * 0 with SMP_F_MAY_CHANGE in the sample flags if some data is missing to
9548 * decide whether or not an HTTP message is present ;
9549 * 0 if the requested data cannot be fetched or if it is certain that
9550 * we'll never have any HTTP message there ;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9551 * 1 if an HTTP message is ready
9552 */
James Rosewell91a41cb2015-09-18 17:11:16 +0100[diff] [blame]9553int smp_prefetch_http(struct proxy *px, struct stream *s, unsigned int opt,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9554 const struct arg *args, struct sample *smp, int req_vol)
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9555{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9556 struct http_txn *txn;
9557 struct http_msg *msg;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9558
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9559 /* Note: it is possible that <s> is NULL when called before stream
9560 * initialization (eg: tcp-request connection), so this function is the
9561 * one responsible for guarding against this case for all HTTP users.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9562 */
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9563 if (!s)
9564 return 0;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9565
Thierry FOURNIERed08d6a2015-09-24 08:40:18 +0200[diff] [blame]9566 if (!s->txn) {
9567 if (unlikely(!http_alloc_txn(s)))
9568 return 0; /* not enough memory */
9569 http_init_txn(s);
9570 }
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9571 txn = s->txn;
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9572 msg = &txn->req;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9573
9574 /* Check for a dependency on a request */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9575 smp->data.type = SMP_T_BOOL;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9576
Willy Tarreau32a6f2e2012-04-25 10:13:36 +0200[diff] [blame]9577 if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9578 /* If the buffer does not leave enough free space at the end,
9579 * we must first realign it.
9580 */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]9581 if (ci_head(&s->req) > b_orig(&s->req.buf) &&
9582 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]9583 channel_slow_realign(&s->req, trash.area);
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9584
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9585 if (unlikely(txn->req.msg_state < HTTP_MSG_BODY)) {
Willy Tarreau472b1ee2013-10-14 22:41:30 +0200[diff] [blame]9586 if (msg->msg_state == HTTP_MSG_ERROR)
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9587 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9588
9589 /* Try to decode HTTP request */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9590 if (likely(msg->next < ci_data(&s->req)))
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9591 http_msg_analyzer(msg, &txn->hdr_idx);
9592
9593 /* Still no valid request ? */
9594 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau3bf1b2b2012-08-27 20:46:07 +0200[diff] [blame]9595 if ((msg->msg_state == HTTP_MSG_ERROR) ||
Willy Tarreau23752332018-06-15 14:54:53 +0200[diff] [blame]9596 channel_full(&s->req, global.tune.maxrewrite)) {
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9597 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9598 }
9599 /* wait for final state */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9600 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9601 return 0;
9602 }
9603
9604 /* OK we just got a valid HTTP request. We have some minor
9605 * preparation to perform so that further checks can rely
9606 * on HTTP tests.
9607 */
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9608
9609 /* If the request was parsed but was too large, we must absolutely
9610 * return an error so that it is not processed. At the moment this
9611 * cannot happen, but if the parsers are to change in the future,
9612 * we want this check to be maintained.
9613 */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9614 if (unlikely(ci_head(&s->req) + ci_data(&s->req) >
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]9615 b_wrap(&s->req.buf) - global.tune.maxrewrite)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]9616 msg->err_state = msg->msg_state;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9617 msg->msg_state = HTTP_MSG_ERROR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9618 smp->data.u.sint = 1;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9619 return 1;
9620 }
9621
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9622 txn->meth = find_http_meth(ci_head(msg->chn), msg->sl.rq.m_l);
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9623 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]9624 s->flags |= SF_REDIRECTABLE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9625
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9626 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
9627 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9628 }
9629
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9630 if (req_vol && txn->rsp.msg_state != HTTP_MSG_RPBEFORE) {
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9631 return 0; /* data might have moved and indexes changed */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9632 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9633
9634 /* otherwise everything's ready for the request */
9635 }
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9636 else {
9637 /* Check for a dependency on a response */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9638 if (txn->rsp.msg_state < HTTP_MSG_BODY) {
9639 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9640 return 0;
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9641 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9642 }
9643
9644 /* everything's OK */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9645 smp->data.u.sint = 1;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9646 return 1;
9647}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9648
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9649/* 1. Check on METHOD
9650 * We use the pre-parsed method if it is known, and store its number as an
9651 * integer. If it is unknown, we use the pointer and the length.
9652 */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9653static int pat_parse_meth(const char *text, struct pattern *pattern, int mflags, char **err)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9654{
9655 int len, meth;
9656
Thierry FOURNIER580c32c2014-01-24 10:58:12 +0100[diff] [blame]9657 len = strlen(text);
9658 meth = find_http_meth(text, len);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9659
9660 pattern->val.i = meth;
9661 if (meth == HTTP_METH_OTHER) {
Willy Tarreau912c1192014-08-29 15:15:50 +0200[diff] [blame]9662 pattern->ptr.str = (char *)text;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9663 pattern->len = len;
9664 }
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9665 else {
9666 pattern->ptr.str = NULL;
9667 pattern->len = 0;
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9668 }
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9669 return 1;
9670}
9671
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9672/* This function fetches the method of current HTTP request and stores
9673 * it in the global pattern struct as a chunk. There are two possibilities :
9674 * - if the method is known (not HTTP_METH_OTHER), its identifier is stored
9675 * in <len> and <ptr> is NULL ;
9676 * - if the method is unknown (HTTP_METH_OTHER), <ptr> points to the text and
9677 * <len> to its length.
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]9678 * This is intended to be used with pat_match_meth() only.
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9679 */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9680static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9681smp_fetch_meth(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9682{
9683 int meth;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9684 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9685
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9686 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9687
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9688 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9689 meth = txn->meth;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9690 smp->data.type = SMP_T_METH;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9691 smp->data.u.meth.meth = meth;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9692 if (meth == HTTP_METH_OTHER) {
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9693 if (txn->rsp.msg_state != HTTP_MSG_RPBEFORE)
9694 /* ensure the indexes are not affected */
9695 return 0;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9696 smp->flags |= SMP_F_CONST;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9697 smp->data.u.meth.str.data = txn->req.sl.rq.m_l;
9698 smp->data.u.meth.str.area = ci_head(txn->req.chn);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9699 }
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9700 smp->flags |= SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9701 return 1;
9702}
9703
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9704/* See above how the method is stored in the global pattern */
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9705static struct pattern *pat_match_meth(struct sample *smp, struct pattern_expr *expr, int fill)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9706{
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9707 int icase;
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9708 struct pattern_list *lst;
9709 struct pattern *pattern;
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9710
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9711 list_for_each_entry(lst, &expr->patterns, list) {
9712 pattern = &lst->pat;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9713
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9714 /* well-known method */
9715 if (pattern->val.i != HTTP_METH_OTHER) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9716 if (smp->data.u.meth.meth == pattern->val.i)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9717 return pattern;
9718 else
9719 continue;
9720 }
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9721
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9722 /* Other method, we must compare the strings */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9723 if (pattern->len != smp->data.u.meth.str.data)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9724 continue;
9725
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9726 icase = expr->mflags & PAT_MF_IGNORE_CASE;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9727 if ((icase && strncasecmp(pattern->ptr.str, smp->data.u.meth.str.area, smp->data.u.meth.str.data) == 0) ||
9728 (!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]9729 return pattern;
9730 }
9731 return NULL;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9732}
9733
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9734static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9735smp_fetch_rqver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9736{
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9737 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9738 char *ptr;
9739 int len;
9740
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9741 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9742
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9743 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9744 len = txn->req.sl.rq.v_l;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9745 ptr = ci_head(txn->req.chn) + txn->req.sl.rq.v;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9746
9747 while ((len-- > 0) && (*ptr++ != '/'));
9748 if (len <= 0)
9749 return 0;
9750
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9751 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9752 smp->data.u.str.area = ptr;
9753 smp->data.u.str.data = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9754
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9755 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9756 return 1;
9757}
9758
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9759static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9760smp_fetch_stver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9761{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9762 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9763 char *ptr;
9764 int len;
9765
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9766 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9767
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9768 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9769 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9770 return 0;
9771
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9772 len = txn->rsp.sl.st.v_l;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9773 ptr = ci_head(txn->rsp.chn);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9774
9775 while ((len-- > 0) && (*ptr++ != '/'));
9776 if (len <= 0)
9777 return 0;
9778
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9779 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9780 smp->data.u.str.area = ptr;
9781 smp->data.u.str.data = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9782
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9783 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9784 return 1;
9785}
9786
9787/* 3. Check on Status Code. We manipulate integers here. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9788static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9789smp_fetch_stcode(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9790{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9791 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9792 char *ptr;
9793 int len;
9794
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9795 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9796
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9797 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9798 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9799 return 0;
9800
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9801 len = txn->rsp.sl.st.c_l;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9802 ptr = ci_head(txn->rsp.chn) + txn->rsp.sl.st.c;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9803
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9804 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9805 smp->data.u.sint = __strl2ui(ptr, len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9806 smp->flags = SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9807 return 1;
9808}
9809
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9810static int
9811smp_fetch_uniqueid(const struct arg *args, struct sample *smp, const char *kw, void *private)
9812{
9813 if (LIST_ISEMPTY(&smp->sess->fe->format_unique_id))
9814 return 0;
9815
9816 if (!smp->strm->unique_id) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]9817 if ((smp->strm->unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9818 return 0;
9819 smp->strm->unique_id[0] = '\0';
9820 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9821 smp->data.u.str.data = build_logline(smp->strm, smp->strm->unique_id,
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9822 UNIQUEID_LEN, &smp->sess->fe->format_unique_id);
9823
9824 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9825 smp->data.u.str.area = smp->strm->unique_id;
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9826 smp->flags = SMP_F_CONST;
9827 return 1;
9828}
9829
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]9830/* Returns a string block containing all headers including the
9831 * empty line wich separes headers from the body. This is useful
9832 * form some headers analysis.
9833 */
9834static int
9835smp_fetch_hdrs(const struct arg *args, struct sample *smp, const char *kw, void *private)
9836{
9837 struct http_msg *msg;
9838 struct hdr_idx *idx;
9839 struct http_txn *txn;
9840
9841 CHECK_HTTP_MESSAGE_FIRST();
9842
9843 txn = smp->strm->txn;
9844 idx = &txn->hdr_idx;
9845 msg = &txn->req;
9846
9847 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9848 smp->data.u.str.area = ci_head(msg->chn) + hdr_idx_first_pos(idx);
9849 smp->data.u.str.data = msg->eoh - hdr_idx_first_pos(idx) + 1 +
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9850 (ci_head(msg->chn)[msg->eoh] == '\r');
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]9851
9852 return 1;
9853}
9854
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9855/* Returns the header request in a length/value encoded format.
9856 * This is useful for exchanges with the SPOE.
9857 *
9858 * A "length value" is a multibyte code encoding numbers. It uses the
9859 * SPOE format. The encoding is the following:
9860 *
9861 * Each couple "header name" / "header value" is composed
9862 * like this:
9863 * "length value" "header name bytes"
9864 * "length value" "header value bytes"
9865 * When the last header is reached, the header name and the header
9866 * value are empty. Their length are 0
9867 */
9868static int
9869smp_fetch_hdrs_bin(const struct arg *args, struct sample *smp, const char *kw, void *private)
9870{
9871 struct http_msg *msg;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]9872 struct buffer *temp;
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9873 struct hdr_idx *idx;
9874 const char *cur_ptr, *cur_next, *p;
9875 int old_idx, cur_idx;
9876 struct hdr_idx_elem *cur_hdr;
9877 const char *hn, *hv;
9878 int hnl, hvl;
9879 int ret;
9880 struct http_txn *txn;
9881 char *buf;
9882 char *end;
9883
9884 CHECK_HTTP_MESSAGE_FIRST();
9885
9886 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9887 buf = temp->area;
9888 end = temp->area + temp->size;
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9889
9890 txn = smp->strm->txn;
9891 idx = &txn->hdr_idx;
9892 msg = &txn->req;
9893
9894 /* Build array of headers. */
9895 old_idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]9896 cur_next = ci_head(msg->chn) + hdr_idx_first_pos(idx);
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9897 while (1) {
9898 cur_idx = idx->v[old_idx].next;
9899 if (!cur_idx)
9900 break;
9901 old_idx = cur_idx;
9902
9903 cur_hdr = &idx->v[cur_idx];
9904 cur_ptr = cur_next;
9905 cur_next = cur_ptr + cur_hdr->len + cur_hdr->cr + 1;
9906
9907 /* Now we have one full header at cur_ptr of len cur_hdr->len,
9908 * and the next header starts at cur_next. We'll check
9909 * this header in the list as well as against the default
9910 * rule.
9911 */
9912
9913 /* look for ': *'. */
9914 hn = cur_ptr;
9915 for (p = cur_ptr; p < cur_ptr + cur_hdr->len && *p != ':'; p++);
9916 if (p >= cur_ptr+cur_hdr->len)
9917 continue;
9918 hnl = p - hn;
9919 p++;
9920 while (p < cur_ptr + cur_hdr->len && (*p == ' ' || *p == '\t'))
9921 p++;
9922 if (p >= cur_ptr + cur_hdr->len)
9923 continue;
9924 hv = p;
9925 hvl = cur_ptr + cur_hdr->len-p;
9926
9927 /* encode the header name. */
9928 ret = encode_varint(hnl, &buf, end);
9929 if (ret == -1)
9930 return 0;
9931 if (buf + hnl > end)
9932 return 0;
9933 memcpy(buf, hn, hnl);
9934 buf += hnl;
9935
9936 /* encode and copy the value. */
9937 ret = encode_varint(hvl, &buf, end);
9938 if (ret == -1)
9939 return 0;
9940 if (buf + hvl > end)
9941 return 0;
9942 memcpy(buf, hv, hvl);
9943 buf += hvl;
9944 }
9945
9946 /* encode the end of the header list with empty
9947 * header name and header value.
9948 */
9949 ret = encode_varint(0, &buf, end);
9950 if (ret == -1)
9951 return 0;
9952 ret = encode_varint(0, &buf, end);
9953 if (ret == -1)
9954 return 0;
9955
9956 /* Initialise sample data which will be filled. */
9957 smp->data.type = SMP_T_BIN;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9958 smp->data.u.str.area = temp->area;
9959 smp->data.u.str.data = buf - temp->area;
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9960 smp->data.u.str.size = temp->size;
9961
9962 return 1;
9963}
9964
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9965/* returns the longest available part of the body. This requires that the body
9966 * has been waited for using http-buffer-request.
9967 */
9968static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9969smp_fetch_body(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9970{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9971 struct http_msg *msg;
9972 unsigned long len;
9973 unsigned long block1;
9974 char *body;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]9975 struct buffer *temp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9976
9977 CHECK_HTTP_MESSAGE_FIRST();
9978
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9979 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9980 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9981 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9982 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9983
9984 len = http_body_bytes(msg);
Willy Tarreau188e2302018-06-15 11:11:53 +0200[diff] [blame]9985 body = c_ptr(msg->chn, -http_data_rewind(msg));
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9986
9987 block1 = len;
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]9988 if (block1 > b_wrap(&msg->chn->buf) - body)
9989 block1 = b_wrap(&msg->chn->buf) - body;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9990
9991 if (block1 == len) {
9992 /* buffer is not wrapped (or empty) */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9993 smp->data.type = SMP_T_BIN;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]9994 smp->data.u.str.area = body;
9995 smp->data.u.str.data = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9996 smp->flags = SMP_F_VOL_TEST | SMP_F_CONST;
9997 }
9998 else {
9999 /* buffer is wrapped, we need to defragment it */
10000 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10001 memcpy(temp->area, body, block1);
10002 memcpy(temp->area + block1, b_orig(&msg->chn->buf),
10003 len - block1);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10004 smp->data.type = SMP_T_BIN;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10005 smp->data.u.str.area = temp->area;
10006 smp->data.u.str.data = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10007 smp->flags = SMP_F_VOL_TEST;
10008 }
10009 return 1;
10010}
10011
10012
10013/* returns the available length of the body. This requires that the body
10014 * has been waited for using http-buffer-request.
10015 */
10016static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10017smp_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]10018{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10019 struct http_msg *msg;
10020
10021 CHECK_HTTP_MESSAGE_FIRST();
10022
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10023 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10024 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10025 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10026 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10027
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10028 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10029 smp->data.u.sint = http_body_bytes(msg);
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10030
10031 smp->flags = SMP_F_VOL_TEST;
10032 return 1;
10033}
10034
10035
10036/* returns the advertised length of the body, or the advertised size of the
10037 * chunks available in the buffer. This requires that the body has been waited
10038 * for using http-buffer-request.
10039 */
10040static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10041smp_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]10042{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10043 struct http_msg *msg;
10044
10045 CHECK_HTTP_MESSAGE_FIRST();
10046
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10047 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10048 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10049 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10050 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10051
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10052 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10053 smp->data.u.sint = msg->body_len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10054
10055 smp->flags = SMP_F_VOL_TEST;
10056 return 1;
10057}
10058
10059
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10060/* 4. Check on URL/URI. A pointer to the URI is stored. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]10061static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10062smp_fetch_url(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10063{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10064 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10065
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10066 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10067
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10068 txn = smp->strm->txn;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10069 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10070 smp->data.u.str.data = txn->req.sl.rq.u_l;
10071 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]10072 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10073 return 1;
10074}
10075
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10076static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10077smp_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]10078{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10079 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]10080 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10081
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10082 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10083
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10084 txn = smp->strm->txn;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10085 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]10086 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
Willy Tarreauf4362b32011-12-16 17:49:52 +0100[diff] [blame]10087 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10088
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10089 smp->data.type = SMP_T_IPV4;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10090 smp->data.u.ipv4 = ((struct sockaddr_in *)&addr)->sin_addr;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10091 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10092 return 1;
10093}
10094
10095static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10096smp_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]10097{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10098 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]10099 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10100
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10101 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10102
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10103 txn = smp->strm->txn;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10104 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]10105 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
10106 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10107
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10108 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10109 smp->data.u.sint = ntohs(((struct sockaddr_in *)&addr)->sin_port);
Willy Tarreau21e5b0e2012-04-23 19:25:44 +0200[diff] [blame]10110 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10111 return 1;
10112}
10113
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10114/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
10115 * Accepts an optional argument of type string containing the header field name,
10116 * and an optional argument of type signed or unsigned integer to request an
10117 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10118 * headers are considered from the first one. It does not stop on commas and
10119 * returns full lines instead (useful for User-Agent or Date for example).
10120 */
10121static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10122smp_fetch_fhdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10123{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10124 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10125 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10126 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10127 int occ = 0;
10128 const char *name_str = NULL;
10129 int name_len = 0;
10130
10131 if (!ctx) {
10132 /* first call */
10133 ctx = &static_hdr_ctx;
10134 ctx->idx = 0;
10135 smp->ctx.a[0] = ctx;
10136 }
10137
10138 if (args) {
10139 if (args[0].type != ARGT_STR)
10140 return 0;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10141 name_str = args[0].data.str.area;
10142 name_len = args[0].data.str.data;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10143
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10144 if (args[1].type == ARGT_SINT)
10145 occ = args[1].data.sint;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10146 }
10147
10148 CHECK_HTTP_MESSAGE_FIRST();
10149
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10150 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10151 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]10152
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10153 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
10154 /* search for header from the beginning */
10155 ctx->idx = 0;
10156
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10157 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10158 /* no explicit occurrence and single fetch => last header by default */
10159 occ = -1;
10160
10161 if (!occ)
10162 /* prepare to report multiple occurrences for ACL fetches */
10163 smp->flags |= SMP_F_NOT_LAST;
10164
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10165 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10166 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10167 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]10168 return 1;
10169
10170 smp->flags &= ~SMP_F_NOT_LAST;
10171 return 0;
10172}
10173
10174/* 6. Check on HTTP header count. The number of occurrences is returned.
10175 * Accepts exactly 1 argument of type string. It does not stop on commas and
10176 * returns full lines instead (useful for User-Agent or Date for example).
10177 */
10178static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10179smp_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]10180{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10181 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10182 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10183 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10184 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10185 const char *name = NULL;
10186 int len = 0;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10187
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10188 if (args && args->type == ARGT_STR) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10189 name = args->data.str.area;
10190 len = args->data.str.data;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10191 }
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10192
10193 CHECK_HTTP_MESSAGE_FIRST();
10194
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10195 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10196 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]10197
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10198 ctx.idx = 0;
10199 cnt = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10200 while (http_find_full_header2(name, len, ci_head(msg->chn), idx, &ctx))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10201 cnt++;
10202
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10203 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10204 smp->data.u.sint = cnt;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10205 smp->flags = SMP_F_VOL_HDR;
10206 return 1;
10207}
10208
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10209static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10210smp_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]10211{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10212 struct hdr_idx *idx;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10213 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10214 const struct http_msg *msg;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]10215 struct buffer *temp;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10216 char del = ',';
10217
10218 if (args && args->type == ARGT_STR)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10219 del = *args[0].data.str.area;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10220
10221 CHECK_HTTP_MESSAGE_FIRST();
10222
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10223 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10224 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]10225
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10226 temp = get_trash_chunk();
10227
10228 ctx.idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10229 while (http_find_next_header(ci_head(msg->chn), idx, &ctx)) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10230 if (temp->data)
10231 temp->area[temp->data++] = del;
10232 memcpy(temp->area + temp->data, ctx.line, ctx.del);
10233 temp->data += ctx.del;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10234 }
10235
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10236 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10237 smp->data.u.str.area = temp->area;
10238 smp->data.u.str.data = temp->data;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10239 smp->flags = SMP_F_VOL_HDR;
10240 return 1;
10241}
10242
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10243/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
10244 * Accepts an optional argument of type string containing the header field name,
10245 * and an optional argument of type signed or unsigned integer to request an
10246 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10247 * headers are considered from the first one.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10248 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10249static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10250smp_fetch_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10251{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10252 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10253 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10254 const struct http_msg *msg;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10255 int occ = 0;
10256 const char *name_str = NULL;
10257 int name_len = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10258
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10259 if (!ctx) {
10260 /* first call */
10261 ctx = &static_hdr_ctx;
10262 ctx->idx = 0;
Willy Tarreauffb6f082013-04-02 23:16:53 +0200[diff] [blame]10263 smp->ctx.a[0] = ctx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10264 }
10265
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10266 if (args) {
10267 if (args[0].type != ARGT_STR)
10268 return 0;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10269 name_str = args[0].data.str.area;
10270 name_len = args[0].data.str.data;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10271
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10272 if (args[1].type == ARGT_SINT)
10273 occ = args[1].data.sint;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10274 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10275
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10276 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10277
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10278 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10279 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]10280
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10281 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10282 /* search for header from the beginning */
10283 ctx->idx = 0;
10284
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10285 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10286 /* no explicit occurrence and single fetch => last header by default */
10287 occ = -1;
10288
10289 if (!occ)
10290 /* prepare to report multiple occurrences for ACL fetches */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10291 smp->flags |= SMP_F_NOT_LAST;
Willy Tarreau664092c2011-12-16 19:11:42 +0100[diff] [blame]10292
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10293 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10294 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10295 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]10296 return 1;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10297
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10298 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10299 return 0;
10300}
10301
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10302/* 6. Check on HTTP header count. The number of occurrences is returned.
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10303 * Accepts exactly 1 argument of type string.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10304 */
10305static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10306smp_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]10307{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10308 struct hdr_idx *idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10309 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10310 const struct http_msg *msg;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10311 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10312 const char *name = NULL;
10313 int len = 0;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10314
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10315 if (args && args->type == ARGT_STR) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10316 name = args->data.str.area;
10317 len = args->data.str.data;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10318 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10319
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10320 CHECK_HTTP_MESSAGE_FIRST();
10321
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10322 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10323 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]10324
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10325 ctx.idx = 0;
10326 cnt = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10327 while (http_find_header2(name, len, ci_head(msg->chn), idx, &ctx))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10328 cnt++;
10329
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10330 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10331 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10332 smp->flags = SMP_F_VOL_HDR;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10333 return 1;
10334}
10335
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10336/* Fetch an HTTP header's integer value. The integer value is returned. It
10337 * takes a mandatory argument of type string and an optional one of type int
10338 * to designate a specific occurrence. It returns an unsigned integer, which
10339 * may or may not be appropriate for everything.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10340 */
10341static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10342smp_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]10343{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10344 int ret = smp_fetch_hdr(args, smp, kw, private);
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10345
Willy Tarreauf853c462012-04-23 18:53:56 +0200[diff] [blame]10346 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10347 smp->data.type = SMP_T_SINT;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10348 smp->data.u.sint = strl2ic(smp->data.u.str.area,
10349 smp->data.u.str.data);
Willy Tarreauf853c462012-04-23 18:53:56 +0200[diff] [blame]10350 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10351
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10352 return ret;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10353}
10354
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10355/* Fetch an HTTP header's IP value. takes a mandatory argument of type string
10356 * and an optional one of type int to designate a specific occurrence.
10357 * It returns an IPv4 or IPv6 address.
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10358 */
10359static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10360smp_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]10361{
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10362 int ret;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10363
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10364 while ((ret = smp_fetch_hdr(args, smp, kw, private)) > 0) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10365 if (url2ipv4((char *) smp->data.u.str.area, &smp->data.u.ipv4)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10366 smp->data.type = SMP_T_IPV4;
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10367 break;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10368 } else {
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]10369 struct buffer *temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10370 if (smp->data.u.str.data < temp->size - 1) {
10371 memcpy(temp->area, smp->data.u.str.area,
10372 smp->data.u.str.data);
10373 temp->area[smp->data.u.str.data] = '\0';
10374 if (inet_pton(AF_INET6, temp->area, &smp->data.u.ipv6)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10375 smp->data.type = SMP_T_IPV6;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10376 break;
10377 }
10378 }
10379 }
10380
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10381 /* if the header doesn't match an IP address, fetch next one */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10382 if (!(smp->flags & SMP_F_NOT_LAST))
10383 return 0;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10384 }
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10385 return ret;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10386}
10387
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10388/* 8. Check on URI PATH. A pointer to the PATH is stored. The path starts at
10389 * the first '/' after the possible hostname, and ends before the possible '?'.
10390 */
10391static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10392smp_fetch_path(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10393{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10394 struct http_txn *txn;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10395 char *ptr, *end;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10396
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10397 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10398
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10399 txn = smp->strm->txn;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10400 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]10401 ptr = http_get_path(txn);
10402 if (!ptr)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10403 return 0;
10404
10405 /* OK, we got the '/' ! */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10406 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10407 smp->data.u.str.area = ptr;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10408
10409 while (ptr < end && *ptr != '?')
10410 ptr++;
10411
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10412 smp->data.u.str.data = ptr - smp->data.u.str.area;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10413 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10414 return 1;
10415}
10416
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10417/* This produces a concatenation of the first occurrence of the Host header
10418 * followed by the path component if it begins with a slash ('/'). This means
10419 * that '*' will not be added, resulting in exactly the first Host entry.
10420 * If no Host header is found, then the path is returned as-is. The returned
10421 * 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]10422 * The returned sample is of type string.
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10423 */
10424static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10425smp_fetch_base(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10426{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10427 struct http_txn *txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10428 char *ptr, *end, *beg;
10429 struct hdr_ctx ctx;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]10430 struct buffer *temp;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10431
10432 CHECK_HTTP_MESSAGE_FIRST();
10433
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10434 txn = smp->strm->txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10435 ctx.idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10436 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]10437 return smp_fetch_path(args, smp, kw, private);
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10438
10439 /* 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]10440 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10441 memcpy(temp->area, ctx.line + ctx.val, ctx.vlen);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10442 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10443 smp->data.u.str.area = temp->area;
10444 smp->data.u.str.data = ctx.vlen;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10445
10446 /* now retrieve the path */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10447 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]10448 beg = http_get_path(txn);
10449 if (!beg)
10450 beg = end;
10451
10452 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10453
10454 if (beg < ptr && *beg == '/') {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10455 memcpy(smp->data.u.str.area + smp->data.u.str.data, beg,
10456 ptr - beg);
10457 smp->data.u.str.data += ptr - beg;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10458 }
10459
10460 smp->flags = SMP_F_VOL_1ST;
10461 return 1;
10462}
10463
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10464/* This produces a 32-bit hash of the concatenation of the first occurrence of
10465 * the Host header followed by the path component if it begins with a slash ('/').
10466 * This means that '*' will not be added, resulting in exactly the first Host
10467 * 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]10468 * is hashed using the path hash followed by a full avalanche hash and provides a
10469 * 32-bit integer value. This fetch is useful for tracking per-path activity on
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10470 * high-traffic sites without having to store whole paths.
10471 */
Thierry FOURNIER055b9d52014-07-15 16:11:07 +0200[diff] [blame]10472int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10473smp_fetch_base32(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10474{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10475 struct http_txn *txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10476 struct hdr_ctx ctx;
10477 unsigned int hash = 0;
10478 char *ptr, *beg, *end;
10479 int len;
10480
10481 CHECK_HTTP_MESSAGE_FIRST();
10482
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10483 txn = smp->strm->txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10484 ctx.idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10485 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]10486 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
10487 ptr = ctx.line + ctx.val;
10488 len = ctx.vlen;
10489 while (len--)
10490 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
10491 }
10492
10493 /* now retrieve the path */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10494 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]10495 beg = http_get_path(txn);
10496 if (!beg)
10497 beg = end;
10498
10499 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10500
10501 if (beg < ptr && *beg == '/') {
10502 while (beg < ptr)
10503 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
10504 }
10505 hash = full_hash(hash);
10506
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10507 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10508 smp->data.u.sint = hash;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10509 smp->flags = SMP_F_VOL_1ST;
10510 return 1;
10511}
10512
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10513/* 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]10514 * path as returned by smp_fetch_base32(). The idea is to have per-source and
10515 * per-path counters. The result is a binary block from 8 to 20 bytes depending
10516 * on the source address length. The path hash is stored before the address so
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10517 * that in environments where IPv6 is insignificant, truncating the output to
10518 * 8 bytes would still work.
10519 */
10520static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10521smp_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]10522{
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]10523 struct buffer *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10524 struct connection *cli_conn = objt_conn(smp->sess->origin);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10525
10526 if (!cli_conn)
10527 return 0;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10528
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10529 if (!smp_fetch_base32(args, smp, kw, private))
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10530 return 0;
10531
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10532 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10533 *(unsigned int *) temp->area = htonl(smp->data.u.sint);
10534 temp->data += sizeof(unsigned int);
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10535
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10536 switch (cli_conn->addr.from.ss_family) {
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10537 case AF_INET:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10538 memcpy(temp->area + temp->data,
10539 &((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr,
10540 4);
10541 temp->data += 4;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10542 break;
10543 case AF_INET6:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10544 memcpy(temp->area + temp->data,
10545 &((struct sockaddr_in6 *)&cli_conn->addr.from)->sin6_addr,
10546 16);
10547 temp->data += 16;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10548 break;
10549 default:
10550 return 0;
10551 }
10552
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10553 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10554 smp->data.type = SMP_T_BIN;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10555 return 1;
10556}
10557
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10558/* Extracts the query string, which comes after the question mark '?'. If no
10559 * question mark is found, nothing is returned. Otherwise it returns a sample
10560 * of type string carrying the whole query string.
10561 */
10562static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10563smp_fetch_query(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10564{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10565 struct http_txn *txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10566 char *ptr, *end;
10567
10568 CHECK_HTTP_MESSAGE_FIRST();
10569
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10570 txn = smp->strm->txn;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10571 ptr = ci_head(txn->req.chn) + txn->req.sl.rq.u;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10572 end = ptr + txn->req.sl.rq.u_l;
10573
10574 /* look up the '?' */
10575 do {
10576 if (ptr == end)
10577 return 0;
10578 } while (*ptr++ != '?');
10579
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10580 smp->data.type = SMP_T_STR;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10581 smp->data.u.str.area = ptr;
10582 smp->data.u.str.data = end - ptr;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10583 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
10584 return 1;
10585}
10586
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10587static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10588smp_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]10589{
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10590 /* Note: hdr_idx.v cannot be NULL in this ACL because the ACL is tagged
10591 * as a layer7 ACL, which involves automatic allocation of hdr_idx.
10592 */
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10593
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10594 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10595
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10596 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10597 smp->data.u.sint = 1;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10598 return 1;
10599}
10600
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10601/* return a valid test if the current request is the first one on the connection */
10602static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10603smp_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]10604{
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10605 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10606 smp->data.u.sint = !(smp->strm->txn->flags & TX_NOT_FIRST);
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10607 return 1;
10608}
10609
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10610/* Accepts exactly 1 argument of type userlist */
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10611static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10612smp_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]10613{
10614
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10615 if (!args || args->type != ARGT_USR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10616 return 0;
10617
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10618 CHECK_HTTP_MESSAGE_FIRST();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10619
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10620 if (!get_http_auth(smp->strm))
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10621 return 0;
10622
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10623 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10624 smp->data.u.sint = check_user(args->data.usr, smp->strm->txn->auth.user,
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10625 smp->strm->txn->auth.pass);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10626 return 1;
10627}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10628
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10629/* Accepts exactly 1 argument of type userlist */
10630static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10631smp_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]10632{
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10633 if (!args || args->type != ARGT_USR)
10634 return 0;
10635
10636 CHECK_HTTP_MESSAGE_FIRST();
10637
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10638 if (!get_http_auth(smp->strm))
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10639 return 0;
10640
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10641 /* if the user does not belong to the userlist or has a wrong password,
10642 * report that it unconditionally does not match. Otherwise we return
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10643 * a string containing the username.
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10644 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10645 if (!check_user(args->data.usr, smp->strm->txn->auth.user,
10646 smp->strm->txn->auth.pass))
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10647 return 0;
10648
10649 /* pat_match_auth() will need the user list */
10650 smp->ctx.a[0] = args->data.usr;
10651
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10652 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10653 smp->flags = SMP_F_CONST;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10654 smp->data.u.str.area = smp->strm->txn->auth.user;
10655 smp->data.u.str.data = strlen(smp->strm->txn->auth.user);
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10656
10657 return 1;
10658}
10659
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10660/* Try to find the next occurrence of a cookie name in a cookie header value.
10661 * The lookup begins at <hdr>. The pointer and size of the next occurrence of
10662 * the cookie value is returned into *value and *value_l, and the function
10663 * returns a pointer to the next pointer to search from if the value was found.
10664 * Otherwise if the cookie was not found, NULL is returned and neither value
10665 * nor value_l are touched. The input <hdr> string should first point to the
10666 * header's value, and the <hdr_end> pointer must point to the first character
10667 * not part of the value. <list> must be non-zero if value may represent a list
10668 * of values (cookie headers). This makes it faster to abort parsing when no
10669 * list is expected.
10670 */
David Carlier4686f792015-09-25 14:10:50 +0100[diff] [blame]10671char *
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10672extract_cookie_value(char *hdr, const char *hdr_end,
10673 char *cookie_name, size_t cookie_name_l, int list,
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10674 char **value, size_t *value_l)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10675{
10676 char *equal, *att_end, *att_beg, *val_beg, *val_end;
10677 char *next;
10678
10679 /* we search at least a cookie name followed by an equal, and more
10680 * generally something like this :
10681 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
10682 */
10683 for (att_beg = hdr; att_beg + cookie_name_l + 1 < hdr_end; att_beg = next + 1) {
10684 /* Iterate through all cookies on this line */
10685
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10686 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10687 att_beg++;
10688
10689 /* find att_end : this is the first character after the last non
10690 * space before the equal. It may be equal to hdr_end.
10691 */
10692 equal = att_end = att_beg;
10693
10694 while (equal < hdr_end) {
10695 if (*equal == '=' || *equal == ';' || (list && *equal == ','))
10696 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10697 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10698 continue;
10699 att_end = equal;
10700 }
10701
10702 /* here, <equal> points to '=', a delimitor or the end. <att_end>
10703 * is between <att_beg> and <equal>, both may be identical.
10704 */
10705
10706 /* look for end of cookie if there is an equal sign */
10707 if (equal < hdr_end && *equal == '=') {
10708 /* look for the beginning of the value */
10709 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10710 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10711 val_beg++;
10712
10713 /* find the end of the value, respecting quotes */
10714 next = find_cookie_value_end(val_beg, hdr_end);
10715
10716 /* make val_end point to the first white space or delimitor after the value */
10717 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10718 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10719 val_end--;
10720 } else {
10721 val_beg = val_end = next = equal;
10722 }
10723
10724 /* We have nothing to do with attributes beginning with '$'. However,
10725 * they will automatically be removed if a header before them is removed,
10726 * since they're supposed to be linked together.
10727 */
10728 if (*att_beg == '$')
10729 continue;
10730
10731 /* Ignore cookies with no equal sign */
10732 if (equal == next)
10733 continue;
10734
10735 /* Now we have the cookie name between att_beg and att_end, and
10736 * its value between val_beg and val_end.
10737 */
10738
10739 if (att_end - att_beg == cookie_name_l &&
10740 memcmp(att_beg, cookie_name, cookie_name_l) == 0) {
10741 /* let's return this value and indicate where to go on from */
10742 *value = val_beg;
10743 *value_l = val_end - val_beg;
10744 return next + 1;
10745 }
10746
10747 /* Set-Cookie headers only have the name in the first attr=value part */
10748 if (!list)
10749 break;
10750 }
10751
10752 return NULL;
10753}
10754
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10755/* Fetch a captured HTTP request header. The index is the position of
10756 * the "capture" option in the configuration file
10757 */
10758static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10759smp_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]10760{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10761 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10762 int idx;
10763
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10764 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10765 return 0;
10766
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10767 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10768
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10769 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]10770 return 0;
10771
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10772 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10773 smp->flags |= SMP_F_CONST;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10774 smp->data.u.str.area = smp->strm->req_cap[idx];
10775 smp->data.u.str.data = strlen(smp->strm->req_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10776
10777 return 1;
10778}
10779
10780/* Fetch a captured HTTP response header. The index is the position of
10781 * the "capture" option in the configuration file
10782 */
10783static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10784smp_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]10785{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10786 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10787 int idx;
10788
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10789 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10790 return 0;
10791
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10792 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10793
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10794 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]10795 return 0;
10796
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10797 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10798 smp->flags |= SMP_F_CONST;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10799 smp->data.u.str.area = smp->strm->res_cap[idx];
10800 smp->data.u.str.data = strlen(smp->strm->res_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10801
10802 return 1;
10803}
10804
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10805/* Extracts the METHOD in the HTTP request, the txn->uri should be filled before the call */
10806static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10807smp_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]10808{
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]10809 struct buffer *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10810 struct http_txn *txn = smp->strm->txn;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10811 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10812
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10813 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10814 return 0;
10815
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10816 ptr = txn->uri;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10817
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10818 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10819 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10820
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10821 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10822 temp->area = txn->uri;
10823 temp->data = ptr - txn->uri;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10824 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10825 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10826 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10827
10828 return 1;
10829
10830}
10831
10832/* Extracts the path in the HTTP request, the txn->uri should be filled before the call */
10833static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10834smp_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]10835{
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]10836 struct buffer *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10837 struct http_txn *txn = smp->strm->txn;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10838 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10839
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10840 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10841 return 0;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10842
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10843 ptr = txn->uri;
10844
10845 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10846 ptr++;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10847
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10848 if (!*ptr)
10849 return 0;
10850
10851 ptr++; /* skip the space */
10852
10853 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10854 ptr = temp->area = http_get_path_from_string(ptr);
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10855 if (!ptr)
10856 return 0;
10857 while (*ptr != ' ' && *ptr != '\0') /* find space after URI */
10858 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10859
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10860 smp->data.u.str = *temp;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10861 smp->data.u.str.data = ptr - temp->area;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10862 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10863 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10864
10865 return 1;
10866}
10867
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10868/* Retrieves the HTTP version from the request (either 1.0 or 1.1) and emits it
10869 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10870 */
10871static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10872smp_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]10873{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10874 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10875
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10876 if (!txn || txn->req.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10877 return 0;
10878
10879 if (txn->req.flags & HTTP_MSGF_VER_11)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10880 smp->data.u.str.area = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10881 else
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10882 smp->data.u.str.area = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10883
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10884 smp->data.u.str.data = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10885 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10886 smp->flags = SMP_F_CONST;
10887 return 1;
10888
10889}
10890
10891/* Retrieves the HTTP version from the response (either 1.0 or 1.1) and emits it
10892 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10893 */
10894static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10895smp_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]10896{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10897 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10898
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10899 if (!txn || txn->rsp.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10900 return 0;
10901
10902 if (txn->rsp.flags & HTTP_MSGF_VER_11)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10903 smp->data.u.str.area = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10904 else
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10905 smp->data.u.str.area = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10906
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10907 smp->data.u.str.data = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10908 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10909 smp->flags = SMP_F_CONST;
10910 return 1;
10911
10912}
10913
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10914
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10915/* Iterate over all cookies present in a message. The context is stored in
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10916 * 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]10917 * 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]10918 * the direction, multiple cookies may be parsed on the same line or not.
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10919 * 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]10920 * Accepts exactly 1 argument of type string. If the input options indicate
10921 * that no iterating is desired, then only last value is fetched if any.
William Lallemand07c8b242014-05-02 17:11:07 +0200[diff] [blame]10922 * The returned sample is of type CSTR. Can be used to parse cookies in other
10923 * files.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10924 */
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10925int 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]10926{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10927 struct http_txn *txn;
10928 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10929 struct hdr_ctx *ctx = smp->ctx.a[2];
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10930 const struct http_msg *msg;
10931 const char *hdr_name;
10932 int hdr_name_len;
10933 char *sol;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10934 int occ = 0;
10935 int found = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10936
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10937 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10938 return 0;
10939
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10940 if (!ctx) {
10941 /* first call */
10942 ctx = &static_hdr_ctx;
10943 ctx->idx = 0;
10944 smp->ctx.a[2] = ctx;
10945 }
10946
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10947 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10948
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10949 txn = smp->strm->txn;
10950 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10951
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10952 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10953 msg = &txn->req;
10954 hdr_name = "Cookie";
10955 hdr_name_len = 6;
10956 } else {
10957 msg = &txn->rsp;
10958 hdr_name = "Set-Cookie";
10959 hdr_name_len = 10;
10960 }
10961
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10962 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10963 /* no explicit occurrence and single fetch => last cookie by default */
10964 occ = -1;
10965
10966 /* OK so basically here, either we want only one value and it's the
10967 * last one, or we want to iterate over all of them and we fetch the
10968 * next one.
10969 */
10970
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]10971 sol = ci_head(msg->chn);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10972 if (!(smp->flags & SMP_F_NOT_LAST)) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10973 /* search for the header from the beginning, we must first initialize
10974 * the search parameters.
10975 */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10976 smp->ctx.a[0] = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10977 ctx->idx = 0;
10978 }
10979
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10980 smp->flags |= SMP_F_VOL_HDR;
10981
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10982 while (1) {
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10983 /* Note: smp->ctx.a[0] == NULL every time we need to fetch a new header */
10984 if (!smp->ctx.a[0]) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10985 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, ctx))
10986 goto out;
10987
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]10988 if (ctx->vlen < args->data.str.data + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10989 continue;
10990
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10991 smp->ctx.a[0] = ctx->line + ctx->val;
10992 smp->ctx.a[1] = smp->ctx.a[0] + ctx->vlen;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10993 }
10994
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10995 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10996 smp->flags |= SMP_F_CONST;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10997 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]10998 args->data.str.area,
10999 args->data.str.data,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11000 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11001 &smp->data.u.str.area,
11002 &smp->data.u.str.data);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11003 if (smp->ctx.a[0]) {
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11004 found = 1;
11005 if (occ >= 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11006 /* one value was returned into smp->data.u.str.{str,len} */
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11007 smp->flags |= SMP_F_NOT_LAST;
11008 return 1;
11009 }
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11010 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11011 /* if we're looking for last occurrence, let's loop */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11012 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11013 /* all cookie headers and values were scanned. If we're looking for the
11014 * last occurrence, we may return it now.
11015 */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11016 out:
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11017 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11018 return found;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11019}
11020
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11021/* Iterate over all cookies present in a request to count how many occurrences
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11022 * 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]11023 * multiple cookies may be parsed on the same line. The returned sample is of
11024 * type UINT. Accepts exactly 1 argument of type string.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11025 */
11026static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11027smp_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]11028{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11029 struct http_txn *txn;
11030 struct hdr_idx *idx;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11031 struct hdr_ctx ctx;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11032 const struct http_msg *msg;
11033 const char *hdr_name;
11034 int hdr_name_len;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11035 int cnt;
11036 char *val_beg, *val_end;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11037 char *sol;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11038
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11039 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]11040 return 0;
11041
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11042 CHECK_HTTP_MESSAGE_FIRST();
11043
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11044 txn = smp->strm->txn;
11045 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11046
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11047 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11048 msg = &txn->req;
11049 hdr_name = "Cookie";
11050 hdr_name_len = 6;
11051 } else {
11052 msg = &txn->rsp;
11053 hdr_name = "Set-Cookie";
11054 hdr_name_len = 10;
11055 }
11056
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11057 sol = ci_head(msg->chn);
Willy Tarreau46787ed2012-04-11 17:28:40 +0200[diff] [blame]11058 val_end = val_beg = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11059 ctx.idx = 0;
11060 cnt = 0;
11061
11062 while (1) {
11063 /* Note: val_beg == NULL every time we need to fetch a new header */
11064 if (!val_beg) {
11065 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, &ctx))
11066 break;
11067
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11068 if (ctx.vlen < args->data.str.data + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11069 continue;
11070
11071 val_beg = ctx.line + ctx.val;
11072 val_end = val_beg + ctx.vlen;
11073 }
11074
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11075 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]11076 smp->flags |= SMP_F_CONST;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11077 while ((val_beg = extract_cookie_value(val_beg, val_end,
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11078 args->data.str.area, args->data.str.data,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11079 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11080 &smp->data.u.str.area,
11081 &smp->data.u.str.data))) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11082 cnt++;
11083 }
11084 }
11085
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11086 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11087 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11088 smp->flags |= SMP_F_VOL_HDR;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11089 return 1;
11090}
11091
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]11092/* Fetch an cookie's integer value. The integer value is returned. It
11093 * takes a mandatory argument of type string. It relies on smp_fetch_cookie().
11094 */
11095static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11096smp_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]11097{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11098 int ret = smp_fetch_cookie(args, smp, kw, private);
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]11099
11100 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11101 smp->data.type = SMP_T_SINT;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11102 smp->data.u.sint = strl2ic(smp->data.u.str.area,
11103 smp->data.u.str.data);
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]11104 }
11105
11106 return ret;
11107}
11108
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]11109/************************************************************************/
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]11110/* The code below is dedicated to sample fetches */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]11111/************************************************************************/
11112
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11113/*
11114 * Given a path string and its length, find the position of beginning of the
11115 * query string. Returns NULL if no query string is found in the path.
11116 *
11117 * Example: if path = "/foo/bar/fubar?yo=mama;ye=daddy", and n = 22:
11118 *
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11119 * find_query_string(path, n, '?') points to "yo=mama;ye=daddy" string.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11120 */
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11121static inline char *find_param_list(char *path, size_t path_l, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11122{
11123 char *p;
Emeric Brun485479d2010-09-23 18:02:19 +0200[diff] [blame]11124
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11125 p = memchr(path, delim, path_l);
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11126 return p ? p + 1 : NULL;
11127}
11128
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11129static inline int is_param_delimiter(char c, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11130{
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11131 return c == '&' || c == ';' || c == delim;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11132}
11133
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11134/* after increasing a pointer value, it can exceed the first buffer
11135 * size. This function transform the value of <ptr> according with
11136 * the expected position. <chunks> is an array of the one or two
11137 * avalaible chunks. The first value is the start of the first chunk,
11138 * the second value if the end+1 of the first chunks. The third value
11139 * is NULL or the start of the second chunk and the fourth value is
11140 * the end+1 of the second chunk. The function returns 1 if does a
11141 * wrap, else returns 0.
11142 */
11143static inline int fix_pointer_if_wrap(const char **chunks, const char **ptr)
11144{
11145 if (*ptr < chunks[1])
11146 return 0;
11147 if (!chunks[2])
11148 return 0;
11149 *ptr = chunks[2] + ( *ptr - chunks[1] );
11150 return 1;
11151}
11152
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11153/*
11154 * Given a url parameter, find the starting position of the first occurence,
11155 * or NULL if the parameter is not found.
11156 *
11157 * Example: if query_string is "yo=mama;ye=daddy" and url_param_name is "ye",
11158 * the function will return query_string+8.
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11159 *
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11160 * Warning: this function returns a pointer that can point to the first chunk
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11161 * or the second chunk. The caller must be check the position before using the
11162 * result.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11163 */
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11164static const char *
11165find_url_param_pos(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11166 const char* url_param_name, size_t url_param_name_l,
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11167 char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11168{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11169 const char *pos, *last, *equal;
11170 const char **bufs = chunks;
11171 int l1, l2;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11172
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11173
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11174 pos = bufs[0];
11175 last = bufs[1];
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11176 while (pos < last) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11177 /* Check the equal. */
11178 equal = pos + url_param_name_l;
11179 if (fix_pointer_if_wrap(chunks, &equal)) {
11180 if (equal >= chunks[3])
11181 return NULL;
11182 } else {
11183 if (equal >= chunks[1])
11184 return NULL;
11185 }
11186 if (*equal == '=') {
11187 if (pos + url_param_name_l > last) {
11188 /* process wrap case, we detect a wrap. In this case, the
11189 * comparison is performed in two parts.
11190 */
11191
11192 /* This is the end, we dont have any other chunk. */
11193 if (bufs != chunks || !bufs[2])
11194 return NULL;
11195
11196 /* Compute the length of each part of the comparison. */
11197 l1 = last - pos;
11198 l2 = url_param_name_l - l1;
11199
11200 /* The second buffer is too short to contain the compared string. */
11201 if (bufs[2] + l2 > bufs[3])
11202 return NULL;
11203
11204 if (memcmp(pos, url_param_name, l1) == 0 &&
11205 memcmp(bufs[2], url_param_name+l1, l2) == 0)
11206 return pos;
11207
11208 /* Perform wrapping and jump the string who fail the comparison. */
11209 bufs += 2;
11210 pos = bufs[0] + l2;
11211 last = bufs[1];
11212
11213 } else {
11214 /* process a simple comparison. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11215 if (memcmp(pos, url_param_name, url_param_name_l) == 0)
11216 return pos;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11217 pos += url_param_name_l + 1;
11218 if (fix_pointer_if_wrap(chunks, &pos))
11219 last = bufs[2];
11220 }
11221 }
11222
11223 while (1) {
11224 /* Look for the next delimiter. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11225 while (pos < last && !is_param_delimiter(*pos, delim))
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11226 pos++;
11227 if (pos < last)
11228 break;
11229 /* process buffer wrapping. */
11230 if (bufs != chunks || !bufs[2])
11231 return NULL;
11232 bufs += 2;
11233 pos = bufs[0];
11234 last = bufs[1];
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11235 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11236 pos++;
11237 }
11238 return NULL;
11239}
11240
11241/*
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11242 * Given a url parameter name and a query string, find the next value.
11243 * An empty url_param_name matches the first available parameter.
11244 * If the parameter is found, 1 is returned and *vstart / *vend are updated to
11245 * respectively provide a pointer to the value and its end.
11246 * Otherwise, 0 is returned and vstart/vend are not modified.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11247 */
11248static int
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11249find_next_url_param(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11250 const char* url_param_name, size_t url_param_name_l,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11251 const char **vstart, const char **vend, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11252{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11253 const char *arg_start, *qs_end;
11254 const char *value_start, *value_end;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11255
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11256 arg_start = chunks[0];
11257 qs_end = chunks[1];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11258 if (url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11259 /* Looks for an argument name. */
11260 arg_start = find_url_param_pos(chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11261 url_param_name, url_param_name_l,
11262 delim);
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11263 /* Check for wrapping. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11264 if (arg_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11265 qs_end = chunks[3];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11266 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11267 if (!arg_start)
11268 return 0;
11269
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11270 if (!url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11271 while (1) {
11272 /* looks for the first argument. */
11273 value_start = memchr(arg_start, '=', qs_end - arg_start);
11274 if (!value_start) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11275 /* Check for wrapping. */
11276 if (arg_start >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11277 arg_start < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11278 chunks[2]) {
11279 arg_start = chunks[2];
11280 qs_end = chunks[3];
11281 continue;
11282 }
11283 return 0;
11284 }
11285 break;
11286 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11287 value_start++;
11288 }
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11289 else {
11290 /* Jump the argument length. */
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11291 value_start = arg_start + url_param_name_l + 1;
11292
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11293 /* Check for pointer wrapping. */
11294 if (fix_pointer_if_wrap(chunks, &value_start)) {
11295 /* Update the end pointer. */
11296 qs_end = chunks[3];
11297
11298 /* Check for overflow. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11299 if (value_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11300 return 0;
11301 }
11302 }
11303
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11304 value_end = value_start;
11305
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11306 while (1) {
11307 while ((value_end < qs_end) && !is_param_delimiter(*value_end, delim))
11308 value_end++;
11309 if (value_end < qs_end)
11310 break;
11311 /* process buffer wrapping. */
11312 if (value_end >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11313 value_end < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11314 chunks[2]) {
11315 value_end = chunks[2];
11316 qs_end = chunks[3];
11317 continue;
11318 }
11319 break;
11320 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11321
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11322 *vstart = value_start;
11323 *vend = value_end;
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11324 return 1;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11325}
11326
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11327/* This scans a URL-encoded query string. It takes an optionally wrapping
11328 * string whose first contigous chunk has its beginning in ctx->a[0] and end
11329 * in ctx->a[1], and the optional second part in (ctx->a[2]..ctx->a[3]). The
11330 * pointers are updated for next iteration before leaving.
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11331 */
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11332static int
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11333smp_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]11334{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11335 const char *vstart, *vend;
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]11336 struct buffer *temp;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11337 const char **chunks = (const char **)smp->ctx.a;
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11338
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11339 if (!find_next_url_param(chunks,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11340 name, name_len,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11341 &vstart, &vend,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11342 delim))
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11343 return 0;
11344
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11345 /* Create sample. If the value is contiguous, return the pointer as CONST,
11346 * if the value is wrapped, copy-it in a buffer.
11347 */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11348 smp->data.type = SMP_T_STR;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11349 if (chunks[2] &&
11350 vstart >= chunks[0] && vstart <= chunks[1] &&
11351 vend >= chunks[2] && vend <= chunks[3]) {
11352 /* Wrapped case. */
11353 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11354 memcpy(temp->area, vstart, chunks[1] - vstart);
11355 memcpy(temp->area + ( chunks[1] - vstart ), chunks[2],
11356 vend - chunks[2]);
11357 smp->data.u.str.area = temp->area;
11358 smp->data.u.str.data = ( chunks[1] - vstart ) + ( vend - chunks[2] );
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11359 } else {
11360 /* Contiguous case. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11361 smp->data.u.str.area = (char *)vstart;
11362 smp->data.u.str.data = vend - vstart;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11363 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
11364 }
11365
11366 /* Update context, check wrapping. */
11367 chunks[0] = vend;
11368 if (chunks[2] && vend >= chunks[2] && vend <= chunks[3]) {
11369 chunks[1] = chunks[3];
11370 chunks[2] = NULL;
11371 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11372
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11373 if (chunks[0] < chunks[1])
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11374 smp->flags |= SMP_F_NOT_LAST;
11375
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11376 return 1;
11377}
11378
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11379/* This function iterates over each parameter of the query string. It uses
11380 * 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]11381 * parameter. Since it uses smp_fetch_param(), ctx->a[2..3] are both NULL.
11382 * An optional parameter name is passed in args[0], otherwise any parameter is
11383 * considered. It supports an optional delimiter argument for the beginning of
11384 * the string in args[1], which defaults to "?".
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11385 */
11386static int
11387smp_fetch_url_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11388{
11389 struct http_msg *msg;
11390 char delim = '?';
11391 const char *name;
11392 int name_len;
11393
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11394 if (!args ||
11395 (args[0].type && args[0].type != ARGT_STR) ||
11396 (args[1].type && args[1].type != ARGT_STR))
11397 return 0;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11398
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11399 name = "";
11400 name_len = 0;
11401 if (args->type == ARGT_STR) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11402 name = args->data.str.area;
11403 name_len = args->data.str.data;
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11404 }
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11405
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11406 if (args[1].type)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11407 delim = *args[1].data.str.area;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11408
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11409 if (!smp->ctx.a[0]) { // first call, find the query string
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11410 CHECK_HTTP_MESSAGE_FIRST();
11411
11412 msg = &smp->strm->txn->req;
11413
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11414 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]11415 msg->sl.rq.u_l, delim);
11416 if (!smp->ctx.a[0])
11417 return 0;
11418
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11419 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]11420
11421 /* Assume that the context is filled with NULL pointer
11422 * before the first call.
11423 * smp->ctx.a[2] = NULL;
11424 * smp->ctx.a[3] = NULL;
11425 */
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11426 }
11427
11428 return smp_fetch_param(delim, name, name_len, args, smp, kw, private);
11429}
11430
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11431/* This function iterates over each parameter of the body. This requires
11432 * that the body has been waited for using http-buffer-request. It uses
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11433 * ctx->a[0] and ctx->a[1] to store the beginning and end of the first
11434 * contigous part of the body, and optionally ctx->a[2..3] to reference the
11435 * optional second part if the body wraps at the end of the buffer. An optional
11436 * parameter name is passed in args[0], otherwise any parameter is considered.
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11437 */
11438static int
11439smp_fetch_body_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11440{
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11441 struct http_msg *msg;
11442 unsigned long len;
11443 unsigned long block1;
11444 char *body;
11445 const char *name;
11446 int name_len;
11447
11448 if (!args || (args[0].type && args[0].type != ARGT_STR))
11449 return 0;
11450
11451 name = "";
11452 name_len = 0;
11453 if (args[0].type == ARGT_STR) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11454 name = args[0].data.str.area;
11455 name_len = args[0].data.str.data;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11456 }
11457
11458 if (!smp->ctx.a[0]) { // first call, find the query string
11459 CHECK_HTTP_MESSAGE_FIRST();
11460
11461 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11462 msg = &smp->strm->txn->req;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11463 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11464 msg = &smp->strm->txn->rsp;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11465
11466 len = http_body_bytes(msg);
Willy Tarreau188e2302018-06-15 11:11:53 +0200[diff] [blame]11467 body = c_ptr(msg->chn, -http_data_rewind(msg));
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11468
11469 block1 = len;
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]11470 if (block1 > b_wrap(&msg->chn->buf) - body)
11471 block1 = b_wrap(&msg->chn->buf) - body;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11472
11473 if (block1 == len) {
11474 /* buffer is not wrapped (or empty) */
11475 smp->ctx.a[0] = body;
11476 smp->ctx.a[1] = body + len;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11477
11478 /* Assume that the context is filled with NULL pointer
11479 * before the first call.
11480 * smp->ctx.a[2] = NULL;
11481 * smp->ctx.a[3] = NULL;
11482 */
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11483 }
11484 else {
11485 /* buffer is wrapped, we need to defragment it */
11486 smp->ctx.a[0] = body;
11487 smp->ctx.a[1] = body + block1;
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]11488 smp->ctx.a[2] = b_orig(&msg->chn->buf);
11489 smp->ctx.a[3] = b_orig(&msg->chn->buf) + ( len - block1 );
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11490 }
11491 }
11492 return smp_fetch_param('&', name, name_len, args, smp, kw, private);
11493}
11494
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11495/* Return the signed integer value for the specified url parameter (see url_param
11496 * above).
11497 */
11498static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11499smp_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]11500{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11501 int ret = smp_fetch_url_param(args, smp, kw, private);
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11502
11503 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11504 smp->data.type = SMP_T_SINT;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11505 smp->data.u.sint = strl2ic(smp->data.u.str.area,
11506 smp->data.u.str.data);
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11507 }
11508
11509 return ret;
11510}
11511
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11512/* This produces a 32-bit hash of the concatenation of the first occurrence of
11513 * the Host header followed by the path component if it begins with a slash ('/').
11514 * This means that '*' will not be added, resulting in exactly the first Host
11515 * entry. If no Host header is found, then the path is used. The resulting value
11516 * is hashed using the url hash followed by a full avalanche hash and provides a
11517 * 32-bit integer value. This fetch is useful for tracking per-URL activity on
11518 * high-traffic sites without having to store whole paths.
11519 * this differs from the base32 functions in that it includes the url parameters
11520 * as well as the path
11521 */
11522static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11523smp_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]11524{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11525 struct http_txn *txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11526 struct hdr_ctx ctx;
11527 unsigned int hash = 0;
11528 char *ptr, *beg, *end;
11529 int len;
11530
11531 CHECK_HTTP_MESSAGE_FIRST();
11532
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11533 txn = smp->strm->txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11534 ctx.idx = 0;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11535 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]11536 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
11537 ptr = ctx.line + ctx.val;
11538 len = ctx.vlen;
11539 while (len--)
11540 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
11541 }
11542
11543 /* now retrieve the path */
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11544 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]11545 beg = http_get_path(txn);
11546 if (!beg)
11547 beg = end;
11548
11549 for (ptr = beg; ptr < end ; ptr++);
11550
11551 if (beg < ptr && *beg == '/') {
11552 while (beg < ptr)
11553 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
11554 }
11555 hash = full_hash(hash);
11556
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11557 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11558 smp->data.u.sint = hash;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11559 smp->flags = SMP_F_VOL_1ST;
11560 return 1;
11561}
11562
11563/* This concatenates the source address with the 32-bit hash of the Host and
11564 * URL as returned by smp_fetch_base32(). The idea is to have per-source and
11565 * per-url counters. The result is a binary block from 8 to 20 bytes depending
11566 * on the source address length. The URL hash is stored before the address so
11567 * that in environments where IPv6 is insignificant, truncating the output to
11568 * 8 bytes would still work.
11569 */
11570static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11571smp_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]11572{
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]11573 struct buffer *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11574 struct connection *cli_conn = objt_conn(smp->sess->origin);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11575
Dragan Dosendb5af612016-06-16 11:23:01 +0200[diff] [blame]11576 if (!cli_conn)
11577 return 0;
11578
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11579 if (!smp_fetch_url32(args, smp, kw, private))
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11580 return 0;
11581
11582 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11583 *(unsigned int *) temp->area = htonl(smp->data.u.sint);
11584 temp->data += sizeof(unsigned int);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11585
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11586 switch (cli_conn->addr.from.ss_family) {
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11587 case AF_INET:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11588 memcpy(temp->area + temp->data,
11589 &((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr,
11590 4);
11591 temp->data += 4;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11592 break;
11593 case AF_INET6:
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11594 memcpy(temp->area + temp->data,
11595 &((struct sockaddr_in6 *)&cli_conn->addr.from)->sin6_addr,
11596 16);
11597 temp->data += 16;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11598 break;
11599 default:
11600 return 0;
11601 }
11602
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11603 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11604 smp->data.type = SMP_T_BIN;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11605 return 1;
11606}
11607
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11608/* This function is used to validate the arguments passed to any "hdr" fetch
11609 * keyword. These keywords support an optional positive or negative occurrence
11610 * number. We must ensure that the number is greater than -MAX_HDR_HISTORY. It
11611 * is assumed that the types are already the correct ones. Returns 0 on error,
11612 * non-zero if OK. If <err> is not NULL, it will be filled with a pointer to an
11613 * error message in case of error, that the caller is responsible for freeing.
11614 * The initial location must either be freeable or NULL.
11615 */
Thierry FOURNIER49f45af2014-12-08 19:50:43 +0100[diff] [blame]11616int val_hdr(struct arg *arg, char **err_msg)
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11617{
11618 if (arg && arg[1].type == ARGT_SINT && arg[1].data.sint < -MAX_HDR_HISTORY) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]11619 memprintf(err_msg, "header occurrence must be >= %d", -MAX_HDR_HISTORY);
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11620 return 0;
11621 }
11622 return 1;
11623}
11624
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11625/* takes an UINT value on input supposed to represent the time since EPOCH,
11626 * adds an optional offset found in args[0] and emits a string representing
11627 * the date in RFC-1123/5322 format.
11628 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11629static int sample_conv_http_date(const struct arg *args, struct sample *smp, void *private)
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11630{
Cyril Bontéf78d8962016-01-22 19:40:28 +0100[diff] [blame]11631 const char day[7][4] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11632 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]11633 struct buffer *temp;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11634 struct tm *tm;
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11635 /* 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]11636 time_t curr_date = smp->data.u.sint & 0x007fffffffffffffLL;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11637
11638 /* add offset */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11639 if (args && (args[0].type == ARGT_SINT))
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11640 curr_date += args[0].data.sint;
11641
11642 tm = gmtime(&curr_date);
Thierry FOURNIERfac9ccf2015-07-08 00:15:20 +0200[diff] [blame]11643 if (!tm)
11644 return 0;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11645
11646 temp = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11647 temp->data = snprintf(temp->area, temp->size - temp->data,
11648 "%s, %02d %s %04d %02d:%02d:%02d GMT",
11649 day[tm->tm_wday], tm->tm_mday, mon[tm->tm_mon],
11650 1900+tm->tm_year,
11651 tm->tm_hour, tm->tm_min, tm->tm_sec);
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11652
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11653 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11654 smp->data.type = SMP_T_STR;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11655 return 1;
11656}
11657
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11658/* Match language range with language tag. RFC2616 14.4:
11659 *
11660 * A language-range matches a language-tag if it exactly equals
11661 * the tag, or if it exactly equals a prefix of the tag such
11662 * that the first tag character following the prefix is "-".
11663 *
11664 * Return 1 if the strings match, else return 0.
11665 */
11666static inline int language_range_match(const char *range, int range_len,
11667 const char *tag, int tag_len)
11668{
11669 const char *end = range + range_len;
11670 const char *tend = tag + tag_len;
11671 while (range < end) {
11672 if (*range == '-' && tag == tend)
11673 return 1;
11674 if (*range != *tag || tag == tend)
11675 return 0;
11676 range++;
11677 tag++;
11678 }
11679 /* Return true only if the last char of the tag is matched. */
11680 return tag == tend;
11681}
11682
11683/* Arguments: The list of expected value, the number of parts returned and the separator */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11684static int sample_conv_q_prefered(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11685{
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11686 const char *al = smp->data.u.str.area;
11687 const char *end = al + smp->data.u.str.data;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11688 const char *token;
11689 int toklen;
11690 int qvalue;
11691 const char *str;
11692 const char *w;
11693 int best_q = 0;
11694
11695 /* Set the constant to the sample, because the output of the
11696 * function will be peek in the constant configuration string.
11697 */
11698 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11699 smp->data.u.str.size = 0;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11700 smp->data.u.str.area = "";
11701 smp->data.u.str.data = 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11702
11703 /* Parse the accept language */
11704 while (1) {
11705
11706 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11707 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11708 al++;
11709 if (al >= end)
11710 break;
11711
11712 /* Start of the fisrt word. */
11713 token = al;
11714
11715 /* Look for separator: isspace(), ',' or ';'. Next value if 0 length word. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11716 while (al < end && *al != ';' && *al != ',' && !isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11717 al++;
11718 if (al == token)
11719 goto expect_comma;
11720
11721 /* Length of the token. */
11722 toklen = al - token;
11723 qvalue = 1000;
11724
11725 /* Check if the token exists in the list. If the token not exists,
11726 * jump to the next token.
11727 */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11728 str = args[0].data.str.area;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11729 w = str;
11730 while (1) {
11731 if (*str == ';' || *str == '\0') {
11732 if (language_range_match(token, toklen, w, str-w))
11733 goto look_for_q;
11734 if (*str == '\0')
11735 goto expect_comma;
11736 w = str + 1;
11737 }
11738 str++;
11739 }
11740 goto expect_comma;
11741
11742look_for_q:
11743
11744 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11745 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11746 al++;
11747 if (al >= end)
11748 goto process_value;
11749
11750 /* If ',' is found, process the result */
11751 if (*al == ',')
11752 goto process_value;
11753
11754 /* If the character is different from ';', look
11755 * for the end of the header part in best effort.
11756 */
11757 if (*al != ';')
11758 goto expect_comma;
11759
11760 /* Assumes that the char is ';', now expect "q=". */
11761 al++;
11762
11763 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11764 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11765 al++;
11766 if (al >= end)
11767 goto process_value;
11768
11769 /* Expect 'q'. If no 'q', continue in best effort */
11770 if (*al != 'q')
11771 goto process_value;
11772 al++;
11773
11774 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11775 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11776 al++;
11777 if (al >= end)
11778 goto process_value;
11779
11780 /* Expect '='. If no '=', continue in best effort */
11781 if (*al != '=')
11782 goto process_value;
11783 al++;
11784
11785 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11786 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11787 al++;
11788 if (al >= end)
11789 goto process_value;
11790
11791 /* Parse the q value. */
11792 qvalue = parse_qvalue(al, &al);
11793
11794process_value:
11795
11796 /* If the new q value is the best q value, then store the associated
11797 * language in the response. If qvalue is the biggest value (1000),
11798 * break the process.
11799 */
11800 if (qvalue > best_q) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11801 smp->data.u.str.area = (char *)w;
11802 smp->data.u.str.data = str - w;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11803 if (qvalue >= 1000)
11804 break;
11805 best_q = qvalue;
11806 }
11807
11808expect_comma:
11809
11810 /* Expect comma or end. If the end is detected, quit the loop. */
11811 while (al < end && *al != ',')
11812 al++;
11813 if (al >= end)
11814 break;
11815
11816 /* Comma is found, jump it and restart the analyzer. */
11817 al++;
11818 }
11819
11820 /* Set default value if required. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11821 if (smp->data.u.str.data == 0 && args[1].type == ARGT_STR) {
11822 smp->data.u.str.area = args[1].data.str.area;
11823 smp->data.u.str.data = args[1].data.str.data;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11824 }
11825
11826 /* Return true only if a matching language was found. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11827 return smp->data.u.str.data != 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11828}
11829
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11830/* This fetch url-decode any input string. */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11831static int sample_conv_url_dec(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11832{
11833 /* If the constant flag is set or if not size is avalaible at
11834 * the end of the buffer, copy the string in other buffer
11835 * before decoding.
11836 */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11837 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]11838 struct buffer *str = get_trash_chunk();
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11839 memcpy(str->area, smp->data.u.str.area, smp->data.u.str.data);
11840 smp->data.u.str.area = str->area;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11841 smp->data.u.str.size = str->size;
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11842 smp->flags &= ~SMP_F_CONST;
11843 }
11844
11845 /* Add final \0 required by url_decode(), and convert the input string. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11846 smp->data.u.str.area[smp->data.u.str.data] = '\0';
11847 smp->data.u.str.data = url_decode(smp->data.u.str.area);
11848 return (smp->data.u.str.data >= 0);
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11849}
11850
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11851static int smp_conv_req_capture(const struct arg *args, struct sample *smp, void *private)
11852{
11853 struct proxy *fe = strm_fe(smp->strm);
11854 int idx, i;
11855 struct cap_hdr *hdr;
11856 int len;
11857
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11858 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11859 return 0;
11860
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11861 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11862
11863 /* Check the availibity of the capture id. */
11864 if (idx > fe->nb_req_cap - 1)
11865 return 0;
11866
11867 /* Look for the original configuration. */
11868 for (hdr = fe->req_cap, i = fe->nb_req_cap - 1;
11869 hdr != NULL && i != idx ;
11870 i--, hdr = hdr->next);
11871 if (!hdr)
11872 return 0;
11873
11874 /* check for the memory allocation */
11875 if (smp->strm->req_cap[hdr->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]11876 smp->strm->req_cap[hdr->index] = pool_alloc(hdr->pool);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11877 if (smp->strm->req_cap[hdr->index] == NULL)
11878 return 0;
11879
11880 /* Check length. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11881 len = smp->data.u.str.data;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11882 if (len > hdr->len)
11883 len = hdr->len;
11884
11885 /* Capture input data. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11886 memcpy(smp->strm->req_cap[idx], smp->data.u.str.area, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11887 smp->strm->req_cap[idx][len] = '\0';
11888
11889 return 1;
11890}
11891
11892static int smp_conv_res_capture(const struct arg *args, struct sample *smp, void *private)
11893{
11894 struct proxy *fe = strm_fe(smp->strm);
11895 int idx, i;
11896 struct cap_hdr *hdr;
11897 int len;
11898
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11899 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11900 return 0;
11901
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11902 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11903
11904 /* Check the availibity of the capture id. */
11905 if (idx > fe->nb_rsp_cap - 1)
11906 return 0;
11907
11908 /* Look for the original configuration. */
11909 for (hdr = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
11910 hdr != NULL && i != idx ;
11911 i--, hdr = hdr->next);
11912 if (!hdr)
11913 return 0;
11914
11915 /* check for the memory allocation */
11916 if (smp->strm->res_cap[hdr->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]11917 smp->strm->res_cap[hdr->index] = pool_alloc(hdr->pool);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11918 if (smp->strm->res_cap[hdr->index] == NULL)
11919 return 0;
11920
11921 /* Check length. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11922 len = smp->data.u.str.data;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11923 if (len > hdr->len)
11924 len = hdr->len;
11925
11926 /* Capture input data. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]11927 memcpy(smp->strm->res_cap[idx], smp->data.u.str.area, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11928 smp->strm->res_cap[idx][len] = '\0';
11929
11930 return 1;
11931}
11932
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11933/* This function executes one of the set-{method,path,query,uri} actions. It
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11934 * takes the string from the variable 'replace' with length 'len', then modifies
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11935 * the relevant part of the request line accordingly. Then it updates various
11936 * pointers to the next elements which were moved, and the total buffer length.
11937 * It finds the action to be performed in p[2], previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11938 * parse_set_req_line(). It returns 0 in case of success, -1 in case of internal
11939 * error, though this can be revisited when this code is finally exploited.
11940 *
11941 * 'action' can be '0' to replace method, '1' to replace path, '2' to replace
11942 * query string and 3 to replace uri.
11943 *
11944 * In query string case, the mark question '?' must be set at the start of the
11945 * string by the caller, event if the replacement query string is empty.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11946 */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11947int http_replace_req_line(int action, const char *replace, int len,
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11948 struct proxy *px, struct stream *s)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11949{
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11950 struct http_txn *txn = s->txn;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11951 char *cur_ptr, *cur_end;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11952 int offset = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11953 int delta;
11954
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11955 switch (action) {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11956 case 0: // method
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11957 cur_ptr = ci_head(&s->req);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11958 cur_end = cur_ptr + txn->req.sl.rq.m_l;
11959
11960 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11961 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11962 txn->req.sl.rq.m_l += delta;
11963 txn->req.sl.rq.u += delta;
11964 txn->req.sl.rq.v += delta;
11965 break;
11966
11967 case 1: // path
11968 cur_ptr = http_get_path(txn);
11969 if (!cur_ptr)
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11970 cur_ptr = ci_head(&s->req) + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11971
11972 cur_end = cur_ptr;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11973 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]11974 cur_end++;
11975
11976 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11977 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11978 txn->req.sl.rq.u_l += delta;
11979 txn->req.sl.rq.v += delta;
11980 break;
11981
11982 case 2: // query
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11983 offset = 1;
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]11984 cur_ptr = ci_head(&s->req) + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11985 cur_end = cur_ptr + txn->req.sl.rq.u_l;
11986 while (cur_ptr < cur_end && *cur_ptr != '?')
11987 cur_ptr++;
11988
11989 /* skip the question mark or indicate that we must insert it
11990 * (but only if the format string is not empty then).
11991 */
11992 if (cur_ptr < cur_end)
11993 cur_ptr++;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11994 else if (len > 1)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11995 offset = 0;
11996
11997 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11998 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11999 txn->req.sl.rq.u_l += delta;
12000 txn->req.sl.rq.v += delta;
12001 break;
12002
12003 case 3: // uri
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]12004 cur_ptr = ci_head(&s->req) + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12005 cur_end = cur_ptr + txn->req.sl.rq.u_l;
12006
12007 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12008 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12009 txn->req.sl.rq.u_l += delta;
12010 txn->req.sl.rq.v += delta;
12011 break;
12012
12013 default:
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12014 return -1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12015 }
12016
12017 /* commit changes and adjust end of message */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200[diff] [blame]12018 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]12019 txn->req.sl.rq.l += delta;
12020 txn->hdr_idx.v[0].len += delta;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12021 http_msg_move_end(&txn->req, delta);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12022 return 0;
12023}
12024
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12025/* This function replace the HTTP status code and the associated message. The
12026 * variable <status> contains the new status code. This function never fails.
12027 */
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12028void http_set_status(unsigned int status, const char *reason, struct stream *s)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12029{
12030 struct http_txn *txn = s->txn;
12031 char *cur_ptr, *cur_end;
12032 int delta;
12033 char *res;
12034 int c_l;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12035 const char *msg = reason;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12036 int msg_len;
12037
12038 chunk_reset(&trash);
12039
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12040 res = ultoa_o(status, trash.area, trash.size);
12041 c_l = res - trash.area;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12042
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12043 trash.area[c_l] = ' ';
12044 trash.data = c_l + 1;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12045
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12046 /* Do we have a custom reason format string? */
12047 if (msg == NULL)
12048 msg = get_reason(status);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12049 msg_len = strlen(msg);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12050 strncpy(&trash.area[trash.data], msg, trash.size - trash.data);
12051 trash.data += msg_len;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12052
Willy Tarreauf37954d2018-06-15 18:31:02 +0200[diff] [blame]12053 cur_ptr = ci_head(&s->res) + txn->rsp.sl.st.c;
12054 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]12055
12056 /* commit changes and adjust message */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12057 delta = b_rep_blk(&s->res.buf, cur_ptr, cur_end, trash.area,
12058 trash.data);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12059
12060 /* adjust res line offsets and lengths */
12061 txn->rsp.sl.st.r += c_l - txn->rsp.sl.st.c_l;
12062 txn->rsp.sl.st.c_l = c_l;
12063 txn->rsp.sl.st.r_l = msg_len;
12064
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12065 delta = trash.data - (cur_end - cur_ptr);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12066 txn->rsp.sl.st.l += delta;
12067 txn->hdr_idx.v[0].len += delta;
12068 http_msg_move_end(&txn->rsp, delta);
12069}
12070
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12071/* This function executes one of the set-{method,path,query,uri} actions. It
12072 * builds a string in the trash from the specified format string. It finds
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]12073 * the action to be performed in <http.action>, previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12074 * parse_set_req_line(). The replacement action is excuted by the function
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]12075 * http_action_set_req_line(). It always returns ACT_RET_CONT. If an error
12076 * occurs the action is canceled, but the rule processing continue.
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12077 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12078enum act_return http_action_set_req_line(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12079 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12080{
Willy Tarreau83061a82018-07-13 11:56:34 +0200[diff] [blame]12081 struct buffer *replace;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]12082 enum act_return ret = ACT_RET_ERR;
12083
12084 replace = alloc_trash_chunk();
12085 if (!replace)
12086 goto leave;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12087
12088 /* If we have to create a query string, prepare a '?'. */
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12089 if (rule->arg.http.action == 2)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12090 replace->area[replace->data++] = '?';
12091 replace->data += build_logline(s, replace->area + replace->data,
12092 replace->size - replace->data,
12093 &rule->arg.http.logfmt);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12094
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12095 http_replace_req_line(rule->arg.http.action, replace->area,
12096 replace->data, px, s);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]12097
12098 ret = ACT_RET_CONT;
12099
12100leave:
12101 free_trash_chunk(replace);
12102 return ret;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12103}
12104
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12105/* This function is just a compliant action wrapper for "set-status". */
12106enum act_return action_http_set_status(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12107 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12108{
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12109 http_set_status(rule->arg.status.code, rule->arg.status.reason, s);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12110 return ACT_RET_CONT;
12111}
12112
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12113/* parse an http-request action among :
12114 * set-method
12115 * set-path
12116 * set-query
12117 * set-uri
12118 *
12119 * All of them accept a single argument of type string representing a log-format.
12120 * The resulting rule makes use of arg->act.p[0..1] to store the log-format list
12121 * 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]12122 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12123 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12124enum act_parse_ret parse_set_req_line(const char **args, int *orig_arg, struct proxy *px,
12125 struct act_rule *rule, char **err)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12126{
12127 int cur_arg = *orig_arg;
12128
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12129 rule->action = ACT_CUSTOM;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12130
12131 switch (args[0][4]) {
12132 case 'm' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12133 rule->arg.http.action = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12134 rule->action_ptr = http_action_set_req_line;
12135 break;
12136 case 'p' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12137 rule->arg.http.action = 1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12138 rule->action_ptr = http_action_set_req_line;
12139 break;
12140 case 'q' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12141 rule->arg.http.action = 2;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12142 rule->action_ptr = http_action_set_req_line;
12143 break;
12144 case 'u' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12145 rule->arg.http.action = 3;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12146 rule->action_ptr = http_action_set_req_line;
12147 break;
12148 default:
12149 memprintf(err, "internal error: unhandled action '%s'", args[0]);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12150 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12151 }
12152
12153 if (!*args[cur_arg] ||
12154 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
12155 memprintf(err, "expects exactly 1 argument <format>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12156 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12157 }
12158
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12159 LIST_INIT(&rule->arg.http.logfmt);
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12160 px->conf.args.ctx = ARGC_HRQ;
12161 if (!parse_logformat_string(args[cur_arg], px, &rule->arg.http.logfmt, LOG_OPT_HTTP,
12162 (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]12163 return ACT_RET_PRS_ERR;
12164 }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12165
12166 (*orig_arg)++;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12167 return ACT_RET_PRS_OK;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12168}
12169
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12170/* parse set-status action:
12171 * This action accepts a single argument of type int representing
12172 * an http status code. It returns ACT_RET_PRS_OK on success,
12173 * ACT_RET_PRS_ERR on error.
12174 */
12175enum act_parse_ret parse_http_set_status(const char **args, int *orig_arg, struct proxy *px,
12176 struct act_rule *rule, char **err)
12177{
12178 char *error;
12179
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12180 rule->action = ACT_CUSTOM;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12181 rule->action_ptr = action_http_set_status;
12182
12183 /* Check if an argument is available */
12184 if (!*args[*orig_arg]) {
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12185 memprintf(err, "expects 1 argument: <status>; or 3 arguments: <status> reason <fmt>");
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12186 return ACT_RET_PRS_ERR;
12187 }
12188
12189 /* convert status code as integer */
12190 rule->arg.status.code = strtol(args[*orig_arg], &error, 10);
12191 if (*error != '\0' || rule->arg.status.code < 100 || rule->arg.status.code > 999) {
12192 memprintf(err, "expects an integer status code between 100 and 999");
12193 return ACT_RET_PRS_ERR;
12194 }
12195
12196 (*orig_arg)++;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12197
12198 /* set custom reason string */
12199 rule->arg.status.reason = NULL; // If null, we use the default reason for the status code.
12200 if (*args[*orig_arg] && strcmp(args[*orig_arg], "reason") == 0 &&
12201 (*args[*orig_arg + 1] && strcmp(args[*orig_arg + 1], "if") != 0 && strcmp(args[*orig_arg + 1], "unless") != 0)) {
12202 (*orig_arg)++;
12203 rule->arg.status.reason = strdup(args[*orig_arg]);
12204 (*orig_arg)++;
12205 }
12206
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12207 return ACT_RET_PRS_OK;
12208}
12209
Willy Tarreau53275e82017-11-24 07:52:01 +0100[diff] [blame]12210/* This function executes the "reject" HTTP action. It clears the request and
12211 * response buffer without sending any response. It can be useful as an HTTP
12212 * alternative to the silent-drop action to defend against DoS attacks, and may
12213 * also be used with HTTP/2 to close a connection instead of just a stream.
12214 * The txn status is unchanged, indicating no response was sent. The termination
12215 * flags will indicate "PR". It always returns ACT_RET_STOP.
12216 */
12217enum act_return http_action_reject(struct act_rule *rule, struct proxy *px,
12218 struct session *sess, struct stream *s, int flags)
12219{
12220 channel_abort(&s->req);
12221 channel_abort(&s->res);
12222 s->req.analysers = 0;
12223 s->res.analysers = 0;
12224
12225 HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1);
12226 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1);
12227 if (sess->listener && sess->listener->counters)
12228 HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1);
12229
12230 if (!(s->flags & SF_ERR_MASK))
12231 s->flags |= SF_ERR_PRXCOND;
12232 if (!(s->flags & SF_FINST_MASK))
12233 s->flags |= SF_FINST_R;
12234
12235 return ACT_RET_CONT;
12236}
12237
12238/* parse the "reject" action:
12239 * This action takes no argument and returns ACT_RET_PRS_OK on success,
12240 * ACT_RET_PRS_ERR on error.
12241 */
12242enum act_parse_ret parse_http_action_reject(const char **args, int *orig_arg, struct proxy *px,
12243 struct act_rule *rule, char **err)
12244{
12245 rule->action = ACT_CUSTOM;
12246 rule->action_ptr = http_action_reject;
12247 return ACT_RET_PRS_OK;
12248}
12249
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12250/* This function executes the "capture" action. It executes a fetch expression,
12251 * turns the result into a string and puts it in a capture slot. It always
12252 * returns 1. If an error occurs the action is cancelled, but the rule
12253 * processing continues.
12254 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12255enum act_return http_action_req_capture(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12256 struct session *sess, struct stream *s, int flags)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12257{
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12258 struct sample *key;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12259 struct cap_hdr *h = rule->arg.cap.hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12260 char **cap = s->req_cap;
12261 int len;
12262
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12263 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]12264 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12265 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12266
12267 if (cap[h->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]12268 cap[h->index] = pool_alloc(h->pool);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12269
12270 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12271 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12272
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12273 len = key->data.u.str.data;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12274 if (len > h->len)
12275 len = h->len;
12276
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12277 memcpy(cap[h->index], key->data.u.str.area, len);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12278 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12279 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12280}
12281
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12282/* This function executes the "capture" action and store the result in a
12283 * capture slot if exists. It executes a fetch expression, turns the result
12284 * into a string and puts it in a capture slot. It always returns 1. If an
12285 * error occurs the action is cancelled, but the rule processing continues.
12286 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12287enum 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]12288 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12289{
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12290 struct sample *key;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12291 struct cap_hdr *h;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12292 char **cap = s->req_cap;
12293 struct proxy *fe = strm_fe(s);
12294 int len;
12295 int i;
12296
12297 /* Look for the original configuration. */
12298 for (h = fe->req_cap, i = fe->nb_req_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12299 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12300 i--, h = h->next);
12301 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12302 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12303
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12304 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]12305 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12306 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12307
12308 if (cap[h->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]12309 cap[h->index] = pool_alloc(h->pool);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12310
12311 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12312 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12313
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12314 len = key->data.u.str.data;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12315 if (len > h->len)
12316 len = h->len;
12317
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12318 memcpy(cap[h->index], key->data.u.str.area, len);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12319 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12320 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12321}
12322
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12323/* Check an "http-request capture" action.
12324 *
12325 * The function returns 1 in success case, otherwise, it returns 0 and err is
12326 * filled.
12327 */
12328int check_http_req_capture(struct act_rule *rule, struct proxy *px, char **err)
12329{
Christopher Fauletfd608dd2017-12-04 09:45:15 +0100[diff] [blame]12330 if (rule->action_ptr != http_action_req_capture_by_id)
12331 return 1;
12332
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12333 if (rule->arg.capid.idx >= px->nb_req_cap) {
12334 memprintf(err, "unable to find capture id '%d' referenced by http-request capture rule",
12335 rule->arg.capid.idx);
12336 return 0;
12337 }
12338
12339 return 1;
12340}
12341
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12342/* parse an "http-request capture" action. It takes a single argument which is
12343 * a sample fetch expression. It stores the expression into arg->act.p[0] and
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12344 * the allocated hdr_cap struct or the preallocated "id" into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12345 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12346 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12347enum act_parse_ret parse_http_req_capture(const char **args, int *orig_arg, struct proxy *px,
12348 struct act_rule *rule, char **err)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12349{
12350 struct sample_expr *expr;
12351 struct cap_hdr *hdr;
12352 int cur_arg;
Willy Tarreau3986ac12015-05-08 16:13:42 +0200[diff] [blame]12353 int len = 0;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12354
12355 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12356 if (strcmp(args[cur_arg], "if") == 0 ||
12357 strcmp(args[cur_arg], "unless") == 0)
12358 break;
12359
12360 if (cur_arg < *orig_arg + 3) {
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12361 memprintf(err, "expects <expression> [ 'len' <length> | id <idx> ]");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12362 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12363 }
12364
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12365 cur_arg = *orig_arg;
12366 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12367 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12368 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12369
12370 if (!(expr->fetch->val & SMP_VAL_FE_HRQ_HDR)) {
12371 memprintf(err,
12372 "fetch method '%s' extracts information from '%s', none of which is available here",
12373 args[cur_arg-1], sample_src_names(expr->fetch->use));
12374 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12375 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12376 }
12377
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12378 if (!args[cur_arg] || !*args[cur_arg]) {
12379 memprintf(err, "expects 'len or 'id'");
12380 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12381 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12382 }
12383
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12384 if (strcmp(args[cur_arg], "len") == 0) {
12385 cur_arg++;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12386
12387 if (!(px->cap & PR_CAP_FE)) {
12388 memprintf(err, "proxy '%s' has no frontend capability", px->id);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12389 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12390 }
12391
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12392 px->conf.args.ctx = ARGC_CAP;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12393
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12394 if (!args[cur_arg]) {
12395 memprintf(err, "missing length value");
12396 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12397 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12398 }
12399 /* we copy the table name for now, it will be resolved later */
12400 len = atoi(args[cur_arg]);
12401 if (len <= 0) {
12402 memprintf(err, "length must be > 0");
12403 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12404 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12405 }
12406 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12407
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12408 if (!len) {
12409 memprintf(err, "a positive 'len' argument is mandatory");
12410 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12411 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12412 }
12413
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]12414 hdr = calloc(1, sizeof(*hdr));
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12415 hdr->next = px->req_cap;
12416 hdr->name = NULL; /* not a header capture */
12417 hdr->namelen = 0;
12418 hdr->len = len;
12419 hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED);
12420 hdr->index = px->nb_req_cap++;
12421
12422 px->req_cap = hdr;
12423 px->to_log |= LW_REQHDR;
12424
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12425 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12426 rule->action_ptr = http_action_req_capture;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12427 rule->arg.cap.expr = expr;
12428 rule->arg.cap.hdr = hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12429 }
12430
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12431 else if (strcmp(args[cur_arg], "id") == 0) {
12432 int id;
12433 char *error;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12434
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12435 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12436
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12437 if (!args[cur_arg]) {
12438 memprintf(err, "missing id value");
12439 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12440 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12441 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12442
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12443 id = strtol(args[cur_arg], &error, 10);
12444 if (*error != '\0') {
12445 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12446 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12447 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12448 }
12449 cur_arg++;
12450
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12451 px->conf.args.ctx = ARGC_CAP;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12452
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12453 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12454 rule->action_ptr = http_action_req_capture_by_id;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12455 rule->check_ptr = check_http_req_capture;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12456 rule->arg.capid.expr = expr;
12457 rule->arg.capid.idx = id;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12458 }
12459
12460 else {
12461 memprintf(err, "expects 'len' or 'id', found '%s'", args[cur_arg]);
12462 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12463 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12464 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12465
12466 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12467 return ACT_RET_PRS_OK;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12468}
12469
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12470/* This function executes the "capture" action and store the result in a
12471 * capture slot if exists. It executes a fetch expression, turns the result
12472 * into a string and puts it in a capture slot. It always returns 1. If an
12473 * error occurs the action is cancelled, but the rule processing continues.
12474 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12475enum 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]12476 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12477{
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12478 struct sample *key;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12479 struct cap_hdr *h;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12480 char **cap = s->res_cap;
12481 struct proxy *fe = strm_fe(s);
12482 int len;
12483 int i;
12484
12485 /* Look for the original configuration. */
12486 for (h = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12487 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12488 i--, h = h->next);
12489 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12490 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12491
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12492 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]12493 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12494 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12495
12496 if (cap[h->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]12497 cap[h->index] = pool_alloc(h->pool);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12498
12499 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12500 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12501
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12502 len = key->data.u.str.data;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12503 if (len > h->len)
12504 len = h->len;
12505
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]12506 memcpy(cap[h->index], key->data.u.str.area, len);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12507 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12508 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12509}
12510
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12511/* Check an "http-response capture" action.
12512 *
12513 * The function returns 1 in success case, otherwise, it returns 0 and err is
12514 * filled.
12515 */
12516int check_http_res_capture(struct act_rule *rule, struct proxy *px, char **err)
12517{
Christopher Fauletfd608dd2017-12-04 09:45:15 +0100[diff] [blame]12518 if (rule->action_ptr != http_action_res_capture_by_id)
12519 return 1;
12520
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12521 if (rule->arg.capid.idx >= px->nb_rsp_cap) {
12522 memprintf(err, "unable to find capture id '%d' referenced by http-response capture rule",
12523 rule->arg.capid.idx);
12524 return 0;
12525 }
12526
12527 return 1;
12528}
12529
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12530/* parse an "http-response capture" action. It takes a single argument which is
12531 * a sample fetch expression. It stores the expression into arg->act.p[0] and
12532 * the allocated hdr_cap struct od the preallocated id into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12533 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12534 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12535enum act_parse_ret parse_http_res_capture(const char **args, int *orig_arg, struct proxy *px,
12536 struct act_rule *rule, char **err)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12537{
12538 struct sample_expr *expr;
12539 int cur_arg;
12540 int id;
12541 char *error;
12542
12543 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12544 if (strcmp(args[cur_arg], "if") == 0 ||
12545 strcmp(args[cur_arg], "unless") == 0)
12546 break;
12547
12548 if (cur_arg < *orig_arg + 3) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12549 memprintf(err, "expects <expression> id <idx>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12550 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12551 }
12552
12553 cur_arg = *orig_arg;
12554 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12555 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12556 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12557
12558 if (!(expr->fetch->val & SMP_VAL_FE_HRS_HDR)) {
12559 memprintf(err,
12560 "fetch method '%s' extracts information from '%s', none of which is available here",
12561 args[cur_arg-1], sample_src_names(expr->fetch->use));
12562 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12563 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12564 }
12565
12566 if (!args[cur_arg] || !*args[cur_arg]) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12567 memprintf(err, "expects 'id'");
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12568 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12569 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12570 }
12571
12572 if (strcmp(args[cur_arg], "id") != 0) {
12573 memprintf(err, "expects 'id', found '%s'", args[cur_arg]);
12574 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12575 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12576 }
12577
12578 cur_arg++;
12579
12580 if (!args[cur_arg]) {
12581 memprintf(err, "missing id value");
12582 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12583 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12584 }
12585
12586 id = strtol(args[cur_arg], &error, 10);
12587 if (*error != '\0') {
12588 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12589 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12590 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12591 }
12592 cur_arg++;
12593
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12594 px->conf.args.ctx = ARGC_CAP;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12595
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12596 rule->action = ACT_CUSTOM;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12597 rule->action_ptr = http_action_res_capture_by_id;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12598 rule->check_ptr = check_http_res_capture;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12599 rule->arg.capid.expr = expr;
12600 rule->arg.capid.idx = id;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12601
12602 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12603 return ACT_RET_PRS_OK;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12604}
12605
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12606/*
12607 * Return the struct http_req_action_kw associated to a keyword.
12608 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12609struct action_kw *action_http_req_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12610{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12611 return action_lookup(&http_req_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12612}
12613
12614/*
12615 * Return the struct http_res_action_kw associated to a keyword.
12616 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12617struct action_kw *action_http_res_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12618{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12619 return action_lookup(&http_res_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12620}
12621
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12622
12623/* "show errors" handler for the CLI. Returns 0 if wants to continue, 1 to stop
12624 * now.
12625 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200[diff] [blame]12626static int cli_parse_show_errors(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12627{
12628 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
12629 return 1;
12630
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12631 if (*args[2]) {
12632 struct proxy *px;
12633
12634 px = proxy_find_by_name(args[2], 0, 0);
12635 if (px)
12636 appctx->ctx.errors.iid = px->uuid;
12637 else
12638 appctx->ctx.errors.iid = atoi(args[2]);
12639
12640 if (!appctx->ctx.errors.iid) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +0200[diff] [blame]12641 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12642 appctx->ctx.cli.msg = "No such proxy.\n";
12643 appctx->st0 = CLI_ST_PRINT;
12644 return 1;
12645 }
12646 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12647 else
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12648 appctx->ctx.errors.iid = -1; // dump all proxies
12649
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12650 appctx->ctx.errors.flag = 0;
12651 if (strcmp(args[3], "request") == 0)
12652 appctx->ctx.errors.flag |= 4; // ignore response
12653 else if (strcmp(args[3], "response") == 0)
12654 appctx->ctx.errors.flag |= 2; // ignore request
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12655 appctx->ctx.errors.px = NULL;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12656 return 0;
12657}
12658
12659/* This function dumps all captured errors onto the stream interface's
12660 * read buffer. It returns 0 if the output buffer is full and it needs
12661 * to be called again, otherwise non-zero.
12662 */
12663static int cli_io_handler_show_errors(struct appctx *appctx)
12664{
12665 struct stream_interface *si = appctx->owner;
12666 extern const char *monthname[12];
12667
12668 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
12669 return 1;
12670
12671 chunk_reset(&trash);
12672
12673 if (!appctx->ctx.errors.px) {
12674 /* the function had not been called yet, let's prepare the
12675 * buffer for a response.
12676 */
12677 struct tm tm;
12678
12679 get_localtime(date.tv_sec, &tm);
12680 chunk_appendf(&trash, "Total events captured on [%02d/%s/%04d:%02d:%02d:%02d.%03d] : %u\n",
12681 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12682 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(date.tv_usec/1000),
12683 error_snapshot_id);
12684
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12685 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12686 /* Socket buffer full. Let's try again later from the same point */
12687 si_applet_cant_put(si);
12688 return 0;
12689 }
12690
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12691 appctx->ctx.errors.px = proxies_list;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12692 appctx->ctx.errors.bol = 0;
12693 appctx->ctx.errors.ptr = -1;
12694 }
12695
12696 /* we have two inner loops here, one for the proxy, the other one for
12697 * the buffer.
12698 */
12699 while (appctx->ctx.errors.px) {
12700 struct error_snapshot *es;
12701
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12702 if ((appctx->ctx.errors.flag & 1) == 0) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12703 es = &appctx->ctx.errors.px->invalid_req;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12704 if (appctx->ctx.errors.flag & 2) // skip req
12705 goto next;
12706 }
12707 else {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12708 es = &appctx->ctx.errors.px->invalid_rep;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12709 if (appctx->ctx.errors.flag & 4) // skip resp
12710 goto next;
12711 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12712
12713 if (!es->when.tv_sec)
12714 goto next;
12715
12716 if (appctx->ctx.errors.iid >= 0 &&
12717 appctx->ctx.errors.px->uuid != appctx->ctx.errors.iid &&
12718 es->oe->uuid != appctx->ctx.errors.iid)
12719 goto next;
12720
12721 if (appctx->ctx.errors.ptr < 0) {
12722 /* just print headers now */
12723
12724 char pn[INET6_ADDRSTRLEN];
12725 struct tm tm;
12726 int port;
12727
12728 get_localtime(es->when.tv_sec, &tm);
12729 chunk_appendf(&trash, " \n[%02d/%s/%04d:%02d:%02d:%02d.%03d]",
12730 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12731 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(es->when.tv_usec/1000));
12732
12733 switch (addr_to_str(&es->src, pn, sizeof(pn))) {
12734 case AF_INET:
12735 case AF_INET6:
12736 port = get_host_port(&es->src);
12737 break;
12738 default:
12739 port = 0;
12740 }
12741
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12742 switch (appctx->ctx.errors.flag & 1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12743 case 0:
12744 chunk_appendf(&trash,
12745 " frontend %s (#%d): invalid request\n"
12746 " backend %s (#%d)",
12747 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12748 (es->oe->cap & PR_CAP_BE) ? es->oe->id : "<NONE>",
12749 (es->oe->cap & PR_CAP_BE) ? es->oe->uuid : -1);
12750 break;
12751 case 1:
12752 chunk_appendf(&trash,
12753 " backend %s (#%d): invalid response\n"
12754 " frontend %s (#%d)",
12755 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12756 es->oe->id, es->oe->uuid);
12757 break;
12758 }
12759
12760 chunk_appendf(&trash,
12761 ", server %s (#%d), event #%u\n"
12762 " src %s:%d, session #%d, session flags 0x%08x\n"
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]12763 " HTTP msg state %s(%d), msg flags 0x%08x, tx flags 0x%08x\n"
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12764 " HTTP chunk len %lld bytes, HTTP body len %lld bytes\n"
12765 " buffer flags 0x%08x, out %d bytes, total %lld bytes\n"
12766 " pending %d bytes, wrapping at %d, error at position %d:\n \n",
12767 es->srv ? es->srv->id : "<NONE>", es->srv ? es->srv->puid : -1,
12768 es->ev_id,
12769 pn, port, es->sid, es->s_flags,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]12770 h1_msg_state_str(es->state), es->state, es->m_flags, es->t_flags,
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12771 es->m_clen, es->m_blen,
12772 es->b_flags, es->b_out, es->b_tot,
12773 es->len, es->b_wrap, es->pos);
12774
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12775 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12776 /* Socket buffer full. Let's try again later from the same point */
12777 si_applet_cant_put(si);
12778 return 0;
12779 }
12780 appctx->ctx.errors.ptr = 0;
12781 appctx->ctx.errors.sid = es->sid;
12782 }
12783
12784 if (appctx->ctx.errors.sid != es->sid) {
12785 /* the snapshot changed while we were dumping it */
12786 chunk_appendf(&trash,
12787 " WARNING! update detected on this snapshot, dump interrupted. Please re-check!\n");
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12788 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12789 si_applet_cant_put(si);
12790 return 0;
12791 }
12792 goto next;
12793 }
12794
12795 /* OK, ptr >= 0, so we have to dump the current line */
12796 while (es->buf && appctx->ctx.errors.ptr < es->len && appctx->ctx.errors.ptr < global.tune.bufsize) {
12797 int newptr;
12798 int newline;
12799
12800 newline = appctx->ctx.errors.bol;
12801 newptr = dump_text_line(&trash, es->buf, global.tune.bufsize, es->len, &newline, appctx->ctx.errors.ptr);
12802 if (newptr == appctx->ctx.errors.ptr)
12803 return 0;
12804
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12805 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12806 /* Socket buffer full. Let's try again later from the same point */
12807 si_applet_cant_put(si);
12808 return 0;
12809 }
12810 appctx->ctx.errors.ptr = newptr;
12811 appctx->ctx.errors.bol = newline;
12812 };
12813 next:
12814 appctx->ctx.errors.bol = 0;
12815 appctx->ctx.errors.ptr = -1;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12816 appctx->ctx.errors.flag ^= 1;
12817 if (!(appctx->ctx.errors.flag & 1))
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12818 appctx->ctx.errors.px = appctx->ctx.errors.px->next;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12819 }
12820
12821 /* dump complete */
12822 return 1;
12823}
12824
12825/* register cli keywords */
12826static struct cli_kw_list cli_kws = {{ },{
12827 { { "show", "errors", NULL },
12828 "show errors : report last request and response errors for each proxy",
12829 cli_parse_show_errors, cli_io_handler_show_errors, NULL,
12830 },
12831 {{},}
12832}};
12833
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12834/************************************************************************/
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12835/* All supported ACL keywords must be declared here. */
12836/************************************************************************/
12837
12838/* Note: must not be declared <const> as its list will be overwritten.
12839 * Please take care of keeping this list alphabetically sorted.
12840 */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12841static struct acl_kw_list acl_kws = {ILH, {
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12842 { "base", "base", PAT_MATCH_STR },
12843 { "base_beg", "base", PAT_MATCH_BEG },
12844 { "base_dir", "base", PAT_MATCH_DIR },
12845 { "base_dom", "base", PAT_MATCH_DOM },
12846 { "base_end", "base", PAT_MATCH_END },
12847 { "base_len", "base", PAT_MATCH_LEN },
12848 { "base_reg", "base", PAT_MATCH_REG },
12849 { "base_sub", "base", PAT_MATCH_SUB },
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]12850
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12851 { "cook", "req.cook", PAT_MATCH_STR },
12852 { "cook_beg", "req.cook", PAT_MATCH_BEG },
12853 { "cook_dir", "req.cook", PAT_MATCH_DIR },
12854 { "cook_dom", "req.cook", PAT_MATCH_DOM },
12855 { "cook_end", "req.cook", PAT_MATCH_END },
12856 { "cook_len", "req.cook", PAT_MATCH_LEN },
12857 { "cook_reg", "req.cook", PAT_MATCH_REG },
12858 { "cook_sub", "req.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12859
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12860 { "hdr", "req.hdr", PAT_MATCH_STR },
12861 { "hdr_beg", "req.hdr", PAT_MATCH_BEG },
12862 { "hdr_dir", "req.hdr", PAT_MATCH_DIR },
12863 { "hdr_dom", "req.hdr", PAT_MATCH_DOM },
12864 { "hdr_end", "req.hdr", PAT_MATCH_END },
12865 { "hdr_len", "req.hdr", PAT_MATCH_LEN },
12866 { "hdr_reg", "req.hdr", PAT_MATCH_REG },
12867 { "hdr_sub", "req.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12868
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12869 /* these two declarations uses strings with list storage (in place
12870 * of tree storage). The basic match is PAT_MATCH_STR, but the indexation
12871 * and delete functions are relative to the list management. The parse
12872 * and match method are related to the corresponding fetch methods. This
12873 * is very particular ACL declaration mode.
12874 */
12875 { "http_auth_group", NULL, PAT_MATCH_STR, NULL, pat_idx_list_str, pat_del_list_ptr, NULL, pat_match_auth },
12876 { "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]12877
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12878 { "path", "path", PAT_MATCH_STR },
12879 { "path_beg", "path", PAT_MATCH_BEG },
12880 { "path_dir", "path", PAT_MATCH_DIR },
12881 { "path_dom", "path", PAT_MATCH_DOM },
12882 { "path_end", "path", PAT_MATCH_END },
12883 { "path_len", "path", PAT_MATCH_LEN },
12884 { "path_reg", "path", PAT_MATCH_REG },
12885 { "path_sub", "path", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12886
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12887 { "req_ver", "req.ver", PAT_MATCH_STR },
12888 { "resp_ver", "res.ver", PAT_MATCH_STR },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12889
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12890 { "scook", "res.cook", PAT_MATCH_STR },
12891 { "scook_beg", "res.cook", PAT_MATCH_BEG },
12892 { "scook_dir", "res.cook", PAT_MATCH_DIR },
12893 { "scook_dom", "res.cook", PAT_MATCH_DOM },
12894 { "scook_end", "res.cook", PAT_MATCH_END },
12895 { "scook_len", "res.cook", PAT_MATCH_LEN },
12896 { "scook_reg", "res.cook", PAT_MATCH_REG },
12897 { "scook_sub", "res.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12898
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12899 { "shdr", "res.hdr", PAT_MATCH_STR },
12900 { "shdr_beg", "res.hdr", PAT_MATCH_BEG },
12901 { "shdr_dir", "res.hdr", PAT_MATCH_DIR },
12902 { "shdr_dom", "res.hdr", PAT_MATCH_DOM },
12903 { "shdr_end", "res.hdr", PAT_MATCH_END },
12904 { "shdr_len", "res.hdr", PAT_MATCH_LEN },
12905 { "shdr_reg", "res.hdr", PAT_MATCH_REG },
12906 { "shdr_sub", "res.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12907
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12908 { "url", "url", PAT_MATCH_STR },
12909 { "url_beg", "url", PAT_MATCH_BEG },
12910 { "url_dir", "url", PAT_MATCH_DIR },
12911 { "url_dom", "url", PAT_MATCH_DOM },
12912 { "url_end", "url", PAT_MATCH_END },
12913 { "url_len", "url", PAT_MATCH_LEN },
12914 { "url_reg", "url", PAT_MATCH_REG },
12915 { "url_sub", "url", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12916
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12917 { "urlp", "urlp", PAT_MATCH_STR },
12918 { "urlp_beg", "urlp", PAT_MATCH_BEG },
12919 { "urlp_dir", "urlp", PAT_MATCH_DIR },
12920 { "urlp_dom", "urlp", PAT_MATCH_DOM },
12921 { "urlp_end", "urlp", PAT_MATCH_END },
12922 { "urlp_len", "urlp", PAT_MATCH_LEN },
12923 { "urlp_reg", "urlp", PAT_MATCH_REG },
12924 { "urlp_sub", "urlp", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12925
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100[diff] [blame]12926 { /* END */ },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12927}};
12928
12929/************************************************************************/
12930/* All supported pattern keywords must be declared here. */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12931/************************************************************************/
12932/* Note: must not be declared <const> as its list will be overwritten */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12933static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12934 { "base", smp_fetch_base, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12935 { "base32", smp_fetch_base32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12936 { "base32+src", smp_fetch_base32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12937
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]12938 /* capture are allocated and are permanent in the stream */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12939 { "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]12940
12941 /* retrieve these captures from the HTTP logs */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12942 { "capture.req.method", smp_fetch_capture_req_method, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12943 { "capture.req.uri", smp_fetch_capture_req_uri, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12944 { "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]12945
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12946 { "capture.res.hdr", smp_fetch_capture_header_res, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRSHP },
12947 { "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]12948
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12949 /* cookie is valid in both directions (eg: for "stick ...") but cook*
12950 * are only here to match the ACL's name, are request-only and are used
12951 * for ACL compatibility only.
12952 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12953 { "cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12954 { "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]12955 { "cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12956 { "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]12957
12958 /* hdr is valid in both directions (eg: for "stick ...") but hdr_* are
12959 * only here to match the ACL's name, are request-only and are used for
12960 * ACL compatibility only.
12961 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12962 { "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]12963 { "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]12964 { "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]12965 { "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]12966
Willy Tarreau0a0daec2013-04-02 22:44:58 +0200[diff] [blame]12967 { "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]12968 { "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]12969 { "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]12970 { "method", smp_fetch_meth, 0, NULL, SMP_T_METH, SMP_USE_HRQHP },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12971 { "path", smp_fetch_path, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]12972 { "query", smp_fetch_query, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12973
12974 /* HTTP protocol on the request path */
12975 { "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]12976 { "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]12977
12978 /* HTTP version on the request path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12979 { "req.ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
12980 { "req_ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12981
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]12982 { "req.body", smp_fetch_body, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12983 { "req.body_len", smp_fetch_body_len, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
12984 { "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]12985 { "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]12986
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]12987 { "req.hdrs", smp_fetch_hdrs, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]12988 { "req.hdrs_bin", smp_fetch_hdrs_bin, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12989
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12990 /* HTTP version on the response path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12991 { "res.ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
12992 { "resp_ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12993
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12994 /* 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]12995 { "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]12996 { "req.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12997 { "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]12998
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12999 { "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]13000 { "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]13001 { "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]13002 { "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]13003 { "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]13004 { "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]13005 { "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]13006
13007 /* 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]13008 { "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]13009 { "res.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
13010 { "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]13011
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13012 { "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]13013 { "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]13014 { "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]13015 { "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]13016 { "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]13017 { "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]13018 { "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]13019
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]13020 /* scook is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13021 { "scook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13022 { "scook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
13023 { "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]13024 { "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]13025
13026 /* shdr is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13027 { "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]13028 { "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]13029 { "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]13030 { "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]13031
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13032 { "status", smp_fetch_stcode, 0, NULL, SMP_T_SINT, SMP_USE_HRSHP },
Thierry Fournier0e00dca2016-04-07 15:47:40 +0200[diff] [blame]13033 { "unique-id", smp_fetch_uniqueid, 0, NULL, SMP_T_STR, SMP_SRC_L4SRV },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13034 { "url", smp_fetch_url, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13035 { "url32", smp_fetch_url32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]13036 { "url32+src", smp_fetch_url32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]13037 { "url_ip", smp_fetch_url_ip, 0, NULL, SMP_T_IPV4, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13038 { "url_port", smp_fetch_url_port, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]13039 { "url_param", smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
13040 { "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]13041 { "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]13042 { /* END */ },
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]13043}};
13044
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]13045
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13046/************************************************************************/
13047/* All supported converter keywords must be declared here. */
13048/************************************************************************/
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]13049/* Note: must not be declared <const> as its list will be overwritten */
13050static struct sample_conv_kw_list sample_conv_kws = {ILH, {
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13051 { "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]13052 { "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]13053 { "capture-req", smp_conv_req_capture, ARG1(1,SINT), NULL, SMP_T_STR, SMP_T_STR},
13054 { "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]13055 { "url_dec", sample_conv_url_dec, 0, NULL, SMP_T_STR, SMP_T_STR},
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]13056 { NULL, NULL, 0, 0, 0 },
13057}};
13058
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]13059
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13060/************************************************************************/
13061/* All supported http-request action keywords must be declared here. */
13062/************************************************************************/
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]13063struct action_kw_list http_req_actions = {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13064 .kw = {
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]13065 { "capture", parse_http_req_capture },
Willy Tarreau53275e82017-11-24 07:52:01 +0100[diff] [blame]13066 { "reject", parse_http_action_reject },
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13067 { "set-method", parse_set_req_line },
13068 { "set-path", parse_set_req_line },
13069 { "set-query", parse_set_req_line },
13070 { "set-uri", parse_set_req_line },
Willy Tarreaucb703b02015-04-03 09:52:01 +0200[diff] [blame]13071 { NULL, NULL }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13072 }
13073};
13074
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]13075struct action_kw_list http_res_actions = {
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]13076 .kw = {
13077 { "capture", parse_http_res_capture },
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]13078 { "set-status", parse_http_set_status },
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]13079 { NULL, NULL }
13080 }
13081};
13082
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]13083__attribute__((constructor))
13084static void __http_protocol_init(void)
13085{
13086 acl_register_keywords(&acl_kws);
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]13087 sample_register_fetches(&sample_fetch_keywords);
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]13088 sample_register_convs(&sample_conv_kws);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13089 http_req_keywords_register(&http_req_actions);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]13090 http_res_keywords_register(&http_res_actions);
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]13091 cli_register_kw(&cli_kws);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]13092}
13093
13094
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]13095/*
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]13096 * Local variables:
13097 * c-indent-level: 8
13098 * c-basic-offset: 8
13099 * End:
13100 */