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git01.mediatek.com / haproxy / cf975d46bca2515056a4f55e55fedbbc7b4eda59 / . / src / proto_http.c
blob: 5fb510f8dbef07db37b26a30ad5a495557007028 [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
81const struct chunk http_100_chunk = {
82 .str = (char *)&HTTP_100,
83 .len = sizeof(HTTP_100)-1
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,
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]145 [HTTP_ERR_425] = 425,
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]146 [HTTP_ERR_429] = 429,
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]147 [HTTP_ERR_500] = 500,
148 [HTTP_ERR_502] = 502,
149 [HTTP_ERR_503] = 503,
150 [HTTP_ERR_504] = 504,
151};
152
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]153static const char *http_err_msgs[HTTP_ERR_SIZE] = {
Willy Tarreauae94d4d2011-05-11 16:28:49 +0200[diff] [blame]154 [HTTP_ERR_200] =
155 "HTTP/1.0 200 OK\r\n"
156 "Cache-Control: no-cache\r\n"
157 "Connection: close\r\n"
158 "Content-Type: text/html\r\n"
159 "\r\n"
160 "<html><body><h1>200 OK</h1>\nService ready.\n</body></html>\n",
161
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]162 [HTTP_ERR_400] =
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]163 "HTTP/1.0 400 Bad request\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]164 "Cache-Control: no-cache\r\n"
165 "Connection: close\r\n"
166 "Content-Type: text/html\r\n"
167 "\r\n"
168 "<html><body><h1>400 Bad request</h1>\nYour browser sent an invalid request.\n</body></html>\n",
169
170 [HTTP_ERR_403] =
171 "HTTP/1.0 403 Forbidden\r\n"
172 "Cache-Control: no-cache\r\n"
173 "Connection: close\r\n"
174 "Content-Type: text/html\r\n"
175 "\r\n"
176 "<html><body><h1>403 Forbidden</h1>\nRequest forbidden by administrative rules.\n</body></html>\n",
177
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]178 [HTTP_ERR_405] =
179 "HTTP/1.0 405 Method Not Allowed\r\n"
180 "Cache-Control: no-cache\r\n"
181 "Connection: close\r\n"
182 "Content-Type: text/html\r\n"
183 "\r\n"
184 "<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",
185
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]186 [HTTP_ERR_408] =
187 "HTTP/1.0 408 Request Time-out\r\n"
188 "Cache-Control: no-cache\r\n"
189 "Connection: close\r\n"
190 "Content-Type: text/html\r\n"
191 "\r\n"
192 "<html><body><h1>408 Request Time-out</h1>\nYour browser didn't send a complete request in time.\n</body></html>\n",
193
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]194 [HTTP_ERR_425] =
195 "HTTP/1.0 425 Too Early\r\n"
196 "Cache-Control: no-cache\r\n"
197 "Connection: close\r\n"
198 "Content-Type: text/html\r\n"
199 "\r\n"
200 "<html><body><h1>425 Too Early</h1>\nYour browser sent early data.\n</body></html>\n",
201
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]202 [HTTP_ERR_429] =
203 "HTTP/1.0 429 Too Many Requests\r\n"
204 "Cache-Control: no-cache\r\n"
205 "Connection: close\r\n"
206 "Content-Type: text/html\r\n"
207 "\r\n"
208 "<html><body><h1>429 Too Many Requests</h1>\nYou have sent too many requests in a given amount of time.\n</body></html>\n",
209
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]210 [HTTP_ERR_500] =
Jarno Huuskonen16ad94a2017-01-09 14:17:10 +0200[diff] [blame]211 "HTTP/1.0 500 Internal Server Error\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]212 "Cache-Control: no-cache\r\n"
213 "Connection: close\r\n"
214 "Content-Type: text/html\r\n"
215 "\r\n"
Jarno Huuskonen16ad94a2017-01-09 14:17:10 +0200[diff] [blame]216 "<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]217
218 [HTTP_ERR_502] =
219 "HTTP/1.0 502 Bad Gateway\r\n"
220 "Cache-Control: no-cache\r\n"
221 "Connection: close\r\n"
222 "Content-Type: text/html\r\n"
223 "\r\n"
224 "<html><body><h1>502 Bad Gateway</h1>\nThe server returned an invalid or incomplete response.\n</body></html>\n",
225
226 [HTTP_ERR_503] =
227 "HTTP/1.0 503 Service Unavailable\r\n"
228 "Cache-Control: no-cache\r\n"
229 "Connection: close\r\n"
230 "Content-Type: text/html\r\n"
231 "\r\n"
232 "<html><body><h1>503 Service Unavailable</h1>\nNo server is available to handle this request.\n</body></html>\n",
233
234 [HTTP_ERR_504] =
235 "HTTP/1.0 504 Gateway Time-out\r\n"
236 "Cache-Control: no-cache\r\n"
237 "Connection: close\r\n"
238 "Content-Type: text/html\r\n"
239 "\r\n"
240 "<html><body><h1>504 Gateway Time-out</h1>\nThe server didn't respond in time.\n</body></html>\n",
241
242};
243
Cyril Bonté19979e12012-04-04 12:57:21 +0200[diff] [blame]244/* status codes available for the stats admin page (strictly 4 chars length) */
245const char *stat_status_codes[STAT_STATUS_SIZE] = {
246 [STAT_STATUS_DENY] = "DENY",
247 [STAT_STATUS_DONE] = "DONE",
248 [STAT_STATUS_ERRP] = "ERRP",
249 [STAT_STATUS_EXCD] = "EXCD",
250 [STAT_STATUS_NONE] = "NONE",
251 [STAT_STATUS_PART] = "PART",
252 [STAT_STATUS_UNKN] = "UNKN",
253};
254
255
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]256/* List head of all known action keywords for "http-request" */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]257struct action_kw_list http_req_keywords = {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]258 .list = LIST_HEAD_INIT(http_req_keywords.list)
259};
260
261/* List head of all known action keywords for "http-response" */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]262struct action_kw_list http_res_keywords = {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]263 .list = LIST_HEAD_INIT(http_res_keywords.list)
264};
265
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]266/* We must put the messages here since GCC cannot initialize consts depending
267 * on strlen().
268 */
269struct chunk http_err_chunks[HTTP_ERR_SIZE];
270
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]271/* this struct is used between calls to smp_fetch_hdr() or smp_fetch_cookie() */
Christopher Faulet1bc04c72017-10-29 20:14:08 +0100[diff] [blame]272static THREAD_LOCAL struct hdr_ctx static_hdr_ctx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]273
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]274#define FD_SETS_ARE_BITFIELDS
275#ifdef FD_SETS_ARE_BITFIELDS
276/*
277 * This map is used with all the FD_* macros to check whether a particular bit
278 * is set or not. Each bit represents an ACSII code. FD_SET() sets those bytes
279 * which should be encoded. When FD_ISSET() returns non-zero, it means that the
280 * byte should be encoded. Be careful to always pass bytes from 0 to 255
281 * exclusively to the macros.
282 */
283fd_set hdr_encode_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
284fd_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]285fd_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]286
287#else
288#error "Check if your OS uses bitfields for fd_sets"
289#endif
290
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]291static 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]292
David Carlier7365f7d2016-04-04 11:54:42 +0100[diff] [blame]293static inline int http_msg_forward_body(struct stream *s, struct http_msg *msg);
294static inline int http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]295
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]296/* This function returns a reason associated with the HTTP status.
297 * This function never fails, a message is always returned.
298 */
299const char *get_reason(unsigned int status)
300{
301 switch (status) {
302 case 100: return "Continue";
303 case 101: return "Switching Protocols";
304 case 102: return "Processing";
305 case 200: return "OK";
306 case 201: return "Created";
307 case 202: return "Accepted";
308 case 203: return "Non-Authoritative Information";
309 case 204: return "No Content";
310 case 205: return "Reset Content";
311 case 206: return "Partial Content";
312 case 207: return "Multi-Status";
313 case 210: return "Content Different";
314 case 226: return "IM Used";
315 case 300: return "Multiple Choices";
316 case 301: return "Moved Permanently";
317 case 302: return "Moved Temporarily";
318 case 303: return "See Other";
319 case 304: return "Not Modified";
320 case 305: return "Use Proxy";
321 case 307: return "Temporary Redirect";
322 case 308: return "Permanent Redirect";
323 case 310: return "Too many Redirects";
324 case 400: return "Bad Request";
325 case 401: return "Unauthorized";
326 case 402: return "Payment Required";
327 case 403: return "Forbidden";
328 case 404: return "Not Found";
329 case 405: return "Method Not Allowed";
330 case 406: return "Not Acceptable";
331 case 407: return "Proxy Authentication Required";
332 case 408: return "Request Time-out";
333 case 409: return "Conflict";
334 case 410: return "Gone";
335 case 411: return "Length Required";
336 case 412: return "Precondition Failed";
337 case 413: return "Request Entity Too Large";
338 case 414: return "Request-URI Too Long";
339 case 415: return "Unsupported Media Type";
340 case 416: return "Requested range unsatisfiable";
341 case 417: return "Expectation failed";
342 case 418: return "I'm a teapot";
343 case 422: return "Unprocessable entity";
344 case 423: return "Locked";
345 case 424: return "Method failure";
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]346 case 425: return "Too Early";
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]347 case 426: return "Upgrade Required";
348 case 428: return "Precondition Required";
349 case 429: return "Too Many Requests";
350 case 431: return "Request Header Fields Too Large";
351 case 449: return "Retry With";
352 case 450: return "Blocked by Windows Parental Controls";
353 case 451: return "Unavailable For Legal Reasons";
354 case 456: return "Unrecoverable Error";
355 case 499: return "client has closed connection";
356 case 500: return "Internal Server Error";
357 case 501: return "Not Implemented";
Jarno Huuskonen59af2df2016-12-28 10:49:01 +0200[diff] [blame]358 case 502: return "Bad Gateway or Proxy Error";
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]359 case 503: return "Service Unavailable";
360 case 504: return "Gateway Time-out";
361 case 505: return "HTTP Version not supported";
362 case 506: return "Variant also negociate";
363 case 507: return "Insufficient storage";
364 case 508: return "Loop detected";
365 case 509: return "Bandwidth Limit Exceeded";
366 case 510: return "Not extended";
367 case 511: return "Network authentication required";
368 case 520: return "Web server is returning an unknown error";
369 default:
370 switch (status) {
371 case 100 ... 199: return "Informational";
372 case 200 ... 299: return "Success";
373 case 300 ... 399: return "Redirection";
374 case 400 ... 499: return "Client Error";
375 case 500 ... 599: return "Server Error";
376 default: return "Other";
377 }
378 }
379}
380
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]381/* This function returns HTTP_ERR_<num> (enum) matching http status code.
382 * Returned value should match codes from http_err_codes.
383 */
384static const int http_get_status_idx(unsigned int status)
385{
386 switch (status) {
387 case 200: return HTTP_ERR_200;
388 case 400: return HTTP_ERR_400;
389 case 403: return HTTP_ERR_403;
390 case 405: return HTTP_ERR_405;
391 case 408: return HTTP_ERR_408;
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]392 case 425: return HTTP_ERR_425;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]393 case 429: return HTTP_ERR_429;
394 case 500: return HTTP_ERR_500;
395 case 502: return HTTP_ERR_502;
396 case 503: return HTTP_ERR_503;
397 case 504: return HTTP_ERR_504;
398 default: return HTTP_ERR_500;
399 }
400}
401
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]402void init_proto_http()
403{
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]404 int i;
405 char *tmp;
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]406 int msg;
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]407
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]408 for (msg = 0; msg < HTTP_ERR_SIZE; msg++) {
409 if (!http_err_msgs[msg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]410 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]411 abort();
412 }
413
414 http_err_chunks[msg].str = (char *)http_err_msgs[msg];
415 http_err_chunks[msg].len = strlen(http_err_msgs[msg]);
416 }
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]417
418 /* initialize the log header encoding map : '{|}"#' should be encoded with
419 * '#' as prefix, as well as non-printable characters ( <32 or >= 127 ).
420 * URL encoding only requires '"', '#' to be encoded as well as non-
421 * printable characters above.
422 */
423 memset(hdr_encode_map, 0, sizeof(hdr_encode_map));
424 memset(url_encode_map, 0, sizeof(url_encode_map));
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]425 memset(http_encode_map, 0, sizeof(url_encode_map));
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]426 for (i = 0; i < 32; i++) {
427 FD_SET(i, hdr_encode_map);
428 FD_SET(i, url_encode_map);
429 }
430 for (i = 127; i < 256; i++) {
431 FD_SET(i, hdr_encode_map);
432 FD_SET(i, url_encode_map);
433 }
434
435 tmp = "\"#{|}";
436 while (*tmp) {
437 FD_SET(*tmp, hdr_encode_map);
438 tmp++;
439 }
440
441 tmp = "\"#";
442 while (*tmp) {
443 FD_SET(*tmp, url_encode_map);
444 tmp++;
445 }
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]446
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]447 /* initialize the http header encoding map. The draft httpbis define the
448 * header content as:
449 *
450 * HTTP-message = start-line
451 * *( header-field CRLF )
452 * CRLF
453 * [ message-body ]
454 * header-field = field-name ":" OWS field-value OWS
455 * field-value = *( field-content / obs-fold )
456 * field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
457 * obs-fold = CRLF 1*( SP / HTAB )
458 * field-vchar = VCHAR / obs-text
459 * VCHAR = %x21-7E
460 * obs-text = %x80-FF
461 *
462 * All the chars are encoded except "VCHAR", "obs-text", SP and HTAB.
463 * The encoded chars are form 0x00 to 0x08, 0x0a to 0x1f and 0x7f. The
464 * "obs-fold" is volontary forgotten because haproxy remove this.
465 */
466 memset(http_encode_map, 0, sizeof(http_encode_map));
467 for (i = 0x00; i <= 0x08; i++)
468 FD_SET(i, http_encode_map);
469 for (i = 0x0a; i <= 0x1f; i++)
470 FD_SET(i, http_encode_map);
471 FD_SET(0x7f, http_encode_map);
472
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]473 /* memory allocations */
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]474 pool_head_http_txn = create_pool("http_txn", sizeof(struct http_txn), MEM_F_SHARED);
475 pool_head_uniqueid = create_pool("uniqueid", UNIQUEID_LEN, MEM_F_SHARED);
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]476}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]477
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]478/*
479 * We have 26 list of methods (1 per first letter), each of which can have
480 * up to 3 entries (2 valid, 1 null).
481 */
482struct http_method_desc {
Willy Tarreauc8987b32013-12-06 23:43:17 +0100[diff] [blame]483 enum http_meth_t meth;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]484 int len;
485 const char text[8];
486};
487
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]488const struct http_method_desc http_methods[26][3] = {
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]489 ['C' - 'A'] = {
490 [0] = { .meth = HTTP_METH_CONNECT , .len=7, .text="CONNECT" },
491 },
492 ['D' - 'A'] = {
493 [0] = { .meth = HTTP_METH_DELETE , .len=6, .text="DELETE" },
494 },
495 ['G' - 'A'] = {
496 [0] = { .meth = HTTP_METH_GET , .len=3, .text="GET" },
497 },
498 ['H' - 'A'] = {
499 [0] = { .meth = HTTP_METH_HEAD , .len=4, .text="HEAD" },
500 },
Christopher Fauletd57ad642015-07-31 14:26:57 +0200[diff] [blame]501 ['O' - 'A'] = {
502 [0] = { .meth = HTTP_METH_OPTIONS , .len=7, .text="OPTIONS" },
503 },
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]504 ['P' - 'A'] = {
505 [0] = { .meth = HTTP_METH_POST , .len=4, .text="POST" },
506 [1] = { .meth = HTTP_METH_PUT , .len=3, .text="PUT" },
507 },
508 ['T' - 'A'] = {
509 [0] = { .meth = HTTP_METH_TRACE , .len=5, .text="TRACE" },
510 },
511 /* rest is empty like this :
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]512 * [0] = { .meth = HTTP_METH_OTHER , .len=0, .text="" },
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]513 */
514};
515
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]516const struct http_method_name http_known_methods[HTTP_METH_OTHER] = {
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]517 [HTTP_METH_OPTIONS] = { "OPTIONS", 7 },
518 [HTTP_METH_GET] = { "GET", 3 },
519 [HTTP_METH_HEAD] = { "HEAD", 4 },
520 [HTTP_METH_POST] = { "POST", 4 },
521 [HTTP_METH_PUT] = { "PUT", 3 },
522 [HTTP_METH_DELETE] = { "DELETE", 6 },
523 [HTTP_METH_TRACE] = { "TRACE", 5 },
524 [HTTP_METH_CONNECT] = { "CONNECT", 7 },
525};
526
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]527/*
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]528 * Adds a header and its CRLF at the tail of the message's buffer, just before
529 * the last CRLF. Text length is measured first, so it cannot be NULL.
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]530 * The header is also automatically added to the index <hdr_idx>, and the end
531 * of headers is automatically adjusted. The number of bytes added is returned
532 * on success, otherwise <0 is returned indicating an error.
533 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]534int 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]535{
536 int bytes, len;
537
538 len = strlen(text);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]539 bytes = buffer_insert_line2(msg->chn->buf, msg->chn->buf->p + msg->eoh, text, len);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]540 if (!bytes)
541 return -1;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]542 http_msg_move_end(msg, bytes);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]543 return hdr_idx_add(len, 1, hdr_idx, hdr_idx->tail);
544}
545
546/*
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]547 * Adds a header and its CRLF at the tail of the message's buffer, just before
548 * the last CRLF. <len> bytes are copied, not counting the CRLF. If <text> is NULL, then
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]549 * the buffer is only opened and the space reserved, but nothing is copied.
550 * The header is also automatically added to the index <hdr_idx>, and the end
551 * of headers is automatically adjusted. The number of bytes added is returned
552 * on success, otherwise <0 is returned indicating an error.
553 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]554int http_header_add_tail2(struct http_msg *msg,
555 struct hdr_idx *hdr_idx, const char *text, int len)
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]556{
557 int bytes;
558
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]559 bytes = buffer_insert_line2(msg->chn->buf, msg->chn->buf->p + msg->eoh, text, len);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]560 if (!bytes)
561 return -1;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]562 http_msg_move_end(msg, bytes);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]563 return hdr_idx_add(len, 1, hdr_idx, hdr_idx->tail);
564}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]565
566/*
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]567 * Checks if <hdr> is exactly <name> for <len> chars, and ends with a colon.
568 * If so, returns the position of the first non-space character relative to
569 * <hdr>, or <end>-<hdr> if not found before. If no value is found, it tries
570 * to return a pointer to the place after the first space. Returns 0 if the
571 * header name does not match. Checks are case-insensitive.
572 */
573int http_header_match2(const char *hdr, const char *end,
574 const char *name, int len)
575{
576 const char *val;
577
578 if (hdr + len >= end)
579 return 0;
580 if (hdr[len] != ':')
581 return 0;
582 if (strncasecmp(hdr, name, len) != 0)
583 return 0;
584 val = hdr + len + 1;
585 while (val < end && HTTP_IS_SPHT(*val))
586 val++;
587 if ((val >= end) && (len + 2 <= end - hdr))
588 return len + 2; /* we may replace starting from second space */
589 return val - hdr;
590}
591
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]592/* Find the first or next occurrence of header <name> in message buffer <sol>
593 * using headers index <idx>, and return it in the <ctx> structure. This
594 * structure holds everything necessary to use the header and find next
595 * occurrence. If its <idx> member is 0, the header is searched from the
596 * beginning. Otherwise, the next occurrence is returned. The function returns
597 * 1 when it finds a value, and 0 when there is no more. It is very similar to
598 * http_find_header2() except that it is designed to work with full-line headers
599 * whose comma is not a delimiter but is part of the syntax. As a special case,
600 * if ctx->val is NULL when searching for a new values of a header, the current
601 * header is rescanned. This allows rescanning after a header deletion.
602 */
603int http_find_full_header2(const char *name, int len,
604 char *sol, struct hdr_idx *idx,
605 struct hdr_ctx *ctx)
606{
607 char *eol, *sov;
608 int cur_idx, old_idx;
609
610 cur_idx = ctx->idx;
611 if (cur_idx) {
612 /* We have previously returned a header, let's search another one */
613 sol = ctx->line;
614 eol = sol + idx->v[cur_idx].len;
615 goto next_hdr;
616 }
617
618 /* first request for this header */
619 sol += hdr_idx_first_pos(idx);
620 old_idx = 0;
621 cur_idx = hdr_idx_first_idx(idx);
622 while (cur_idx) {
623 eol = sol + idx->v[cur_idx].len;
624
625 if (len == 0) {
626 /* No argument was passed, we want any header.
627 * To achieve this, we simply build a fake request. */
628 while (sol + len < eol && sol[len] != ':')
629 len++;
630 name = sol;
631 }
632
633 if ((len < eol - sol) &&
634 (sol[len] == ':') &&
635 (strncasecmp(sol, name, len) == 0)) {
636 ctx->del = len;
637 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]638 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]639 sov++;
640
641 ctx->line = sol;
642 ctx->prev = old_idx;
643 ctx->idx = cur_idx;
644 ctx->val = sov - sol;
645 ctx->tws = 0;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]646 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]647 eol--;
648 ctx->tws++;
649 }
650 ctx->vlen = eol - sov;
651 return 1;
652 }
653 next_hdr:
654 sol = eol + idx->v[cur_idx].cr + 1;
655 old_idx = cur_idx;
656 cur_idx = idx->v[cur_idx].next;
657 }
658 return 0;
659}
660
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]661/* Find the first or next header field in message buffer <sol> using headers
662 * index <idx>, and return it in the <ctx> structure. This structure holds
663 * everything necessary to use the header and find next occurrence. If its
664 * <idx> member is 0, the first header is retrieved. Otherwise, the next
665 * occurrence is returned. The function returns 1 when it finds a value, and
666 * 0 when there is no more. It is equivalent to http_find_full_header2() with
667 * no header name.
668 */
669int http_find_next_header(char *sol, struct hdr_idx *idx, struct hdr_ctx *ctx)
670{
671 char *eol, *sov;
672 int cur_idx, old_idx;
673 int len;
674
675 cur_idx = ctx->idx;
676 if (cur_idx) {
677 /* We have previously returned a header, let's search another one */
678 sol = ctx->line;
679 eol = sol + idx->v[cur_idx].len;
680 goto next_hdr;
681 }
682
683 /* first request for this header */
684 sol += hdr_idx_first_pos(idx);
685 old_idx = 0;
686 cur_idx = hdr_idx_first_idx(idx);
687 while (cur_idx) {
688 eol = sol + idx->v[cur_idx].len;
689
690 len = 0;
691 while (1) {
692 if (len >= eol - sol)
693 goto next_hdr;
694 if (sol[len] == ':')
695 break;
696 len++;
697 }
698
699 ctx->del = len;
700 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]701 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]702 sov++;
703
704 ctx->line = sol;
705 ctx->prev = old_idx;
706 ctx->idx = cur_idx;
707 ctx->val = sov - sol;
708 ctx->tws = 0;
709
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]710 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]711 eol--;
712 ctx->tws++;
713 }
714 ctx->vlen = eol - sov;
715 return 1;
716
717 next_hdr:
718 sol = eol + idx->v[cur_idx].cr + 1;
719 old_idx = cur_idx;
720 cur_idx = idx->v[cur_idx].next;
721 }
722 return 0;
723}
724
Lukas Tribus23953682017-04-28 13:24:30 +0000[diff] [blame]725/* Find the end of the header value contained between <s> and <e>. See RFC7230,
726 * 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]727 * a valid result. This works for headers defined as comma-separated lists.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]728 */
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]729char *find_hdr_value_end(char *s, const char *e)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]730{
731 int quoted, qdpair;
732
733 quoted = qdpair = 0;
Willy Tarreaue6d9c212016-11-05 18:23:38 +0100[diff] [blame]734
735#if defined(__x86_64__) || \
736 defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) || \
737 defined(__ARM_ARCH_7A__)
738 /* speedup: skip everything not a comma nor a double quote */
739 for (; s <= e - sizeof(int); s += sizeof(int)) {
740 unsigned int c = *(int *)s; // comma
741 unsigned int q = c; // quote
742
743 c ^= 0x2c2c2c2c; // contains one zero on a comma
744 q ^= 0x22222222; // contains one zero on a quote
745
746 c = (c - 0x01010101) & ~c; // contains 0x80 below a comma
747 q = (q - 0x01010101) & ~q; // contains 0x80 below a quote
748
749 if ((c | q) & 0x80808080)
750 break; // found a comma or a quote
751 }
752#endif
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]753 for (; s < e; s++) {
754 if (qdpair) qdpair = 0;
Willy Tarreau0f7f51f2010-08-30 11:06:34 +0200[diff] [blame]755 else if (quoted) {
756 if (*s == '\\') qdpair = 1;
757 else if (*s == '"') quoted = 0;
758 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]759 else if (*s == '"') quoted = 1;
760 else if (*s == ',') return s;
761 }
762 return s;
763}
764
765/* Find the first or next occurrence of header <name> in message buffer <sol>
766 * using headers index <idx>, and return it in the <ctx> structure. This
767 * structure holds everything necessary to use the header and find next
768 * occurrence. If its <idx> member is 0, the header is searched from the
769 * beginning. Otherwise, the next occurrence is returned. The function returns
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]770 * 1 when it finds a value, and 0 when there is no more. It is designed to work
771 * with headers defined as comma-separated lists. As a special case, if ctx->val
772 * is NULL when searching for a new values of a header, the current header is
773 * rescanned. This allows rescanning after a header deletion.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]774 */
775int http_find_header2(const char *name, int len,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]776 char *sol, struct hdr_idx *idx,
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]777 struct hdr_ctx *ctx)
778{
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]779 char *eol, *sov;
780 int cur_idx, old_idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]781
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]782 cur_idx = ctx->idx;
783 if (cur_idx) {
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]784 /* We have previously returned a value, let's search
785 * another one on the same line.
786 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]787 sol = ctx->line;
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]788 ctx->del = ctx->val + ctx->vlen + ctx->tws;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]789 sov = sol + ctx->del;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]790 eol = sol + idx->v[cur_idx].len;
791
792 if (sov >= eol)
793 /* no more values in this header */
794 goto next_hdr;
795
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]796 /* values remaining for this header, skip the comma but save it
797 * for later use (eg: for header deletion).
798 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]799 sov++;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]800 while (sov < eol && HTTP_IS_LWS((*sov)))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]801 sov++;
802
803 goto return_hdr;
804 }
805
806 /* first request for this header */
807 sol += hdr_idx_first_pos(idx);
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]808 old_idx = 0;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]809 cur_idx = hdr_idx_first_idx(idx);
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]810 while (cur_idx) {
811 eol = sol + idx->v[cur_idx].len;
812
Willy Tarreau1ad7c6d2007-06-10 21:42:55 +0200[diff] [blame]813 if (len == 0) {
814 /* No argument was passed, we want any header.
815 * To achieve this, we simply build a fake request. */
816 while (sol + len < eol && sol[len] != ':')
817 len++;
818 name = sol;
819 }
820
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]821 if ((len < eol - sol) &&
822 (sol[len] == ':') &&
823 (strncasecmp(sol, name, len) == 0)) {
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]824 ctx->del = len;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]825 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]826 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]827 sov++;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]828
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]829 ctx->line = sol;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]830 ctx->prev = old_idx;
831 return_hdr:
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]832 ctx->idx = cur_idx;
833 ctx->val = sov - sol;
834
835 eol = find_hdr_value_end(sov, eol);
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]836 ctx->tws = 0;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]837 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]838 eol--;
839 ctx->tws++;
840 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]841 ctx->vlen = eol - sov;
842 return 1;
843 }
844 next_hdr:
845 sol = eol + idx->v[cur_idx].cr + 1;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]846 old_idx = cur_idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]847 cur_idx = idx->v[cur_idx].next;
848 }
849 return 0;
850}
851
852int http_find_header(const char *name,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]853 char *sol, struct hdr_idx *idx,
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]854 struct hdr_ctx *ctx)
855{
856 return http_find_header2(name, strlen(name), sol, idx, ctx);
857}
858
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]859/* Remove one value of a header. This only works on a <ctx> returned by one of
860 * the http_find_header functions. The value is removed, as well as surrounding
861 * commas if any. If the removed value was alone, the whole header is removed.
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]862 * The ctx is always updated accordingly, as well as the buffer and HTTP
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]863 * message <msg>. The new index is returned. If it is zero, it means there is
864 * no more header, so any processing may stop. The ctx is always left in a form
865 * that can be handled by http_find_header2() to find next occurrence.
866 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]867int 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]868{
869 int cur_idx = ctx->idx;
870 char *sol = ctx->line;
871 struct hdr_idx_elem *hdr;
872 int delta, skip_comma;
873
874 if (!cur_idx)
875 return 0;
876
877 hdr = &idx->v[cur_idx];
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]878 if (sol[ctx->del] == ':' && ctx->val + ctx->vlen + ctx->tws == hdr->len) {
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]879 /* This was the only value of the header, we must now remove it entirely. */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]880 delta = buffer_replace2(msg->chn->buf, sol, sol + hdr->len + hdr->cr + 1, NULL, 0);
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]881 http_msg_move_end(msg, delta);
882 idx->used--;
883 hdr->len = 0; /* unused entry */
884 idx->v[ctx->prev].next = idx->v[ctx->idx].next;
Willy Tarreau5c4784f2011-02-12 13:07:35 +0100[diff] [blame]885 if (idx->tail == ctx->idx)
886 idx->tail = ctx->prev;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]887 ctx->idx = ctx->prev; /* walk back to the end of previous header */
Willy Tarreau7c1c2172015-01-07 17:23:50 +0100[diff] [blame]888 ctx->line -= idx->v[ctx->idx].len + idx->v[ctx->idx].cr + 1;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]889 ctx->val = idx->v[ctx->idx].len; /* point to end of previous header */
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]890 ctx->tws = ctx->vlen = 0;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]891 return ctx->idx;
892 }
893
894 /* This was not the only value of this header. We have to remove between
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]895 * ctx->del+1 and ctx->val+ctx->vlen+ctx->tws+1 included. If it is the
896 * last entry of the list, we remove the last separator.
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]897 */
898
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]899 skip_comma = (ctx->val + ctx->vlen + ctx->tws == hdr->len) ? 0 : 1;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]900 delta = buffer_replace2(msg->chn->buf, sol + ctx->del + skip_comma,
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]901 sol + ctx->val + ctx->vlen + ctx->tws + skip_comma,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]902 NULL, 0);
903 hdr->len += delta;
904 http_msg_move_end(msg, delta);
905 ctx->val = ctx->del;
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]906 ctx->tws = ctx->vlen = 0;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]907 return ctx->idx;
908}
909
Willy Tarreau2d3d94c2008-11-30 20:20:08 +0100[diff] [blame]910/* This function handles a server error at the stream interface level. The
911 * stream interface is assumed to be already in a closed state. An optional
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]912 * message is copied into the input buffer.
Willy Tarreau2d3d94c2008-11-30 20:20:08 +0100[diff] [blame]913 * The error flags are set to the values in arguments. Any pending request
Willy Tarreau6f0aa472009-03-08 20:33:29 +0100[diff] [blame]914 * in this buffer will be lost.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]915 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]916static void http_server_error(struct stream *s, struct stream_interface *si,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]917 int err, int finst, const struct chunk *msg)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]918{
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]919 FLT_STRM_CB(s, flt_http_reply(s, s->txn->status, msg));
Willy Tarreau2bb4a962014-11-28 11:11:05 +0100[diff] [blame]920 channel_auto_read(si_oc(si));
921 channel_abort(si_oc(si));
922 channel_auto_close(si_oc(si));
923 channel_erase(si_oc(si));
924 channel_auto_close(si_ic(si));
925 channel_auto_read(si_ic(si));
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]926 if (msg)
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]927 co_inject(si_ic(si), msg->str, msg->len);
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]928 if (!(s->flags & SF_ERR_MASK))
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]929 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]930 if (!(s->flags & SF_FINST_MASK))
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]931 s->flags |= finst;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]932}
933
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]934/* This function returns the appropriate error location for the given stream
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]935 * and message.
936 */
937
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]938struct chunk *http_error_message(struct stream *s)
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]939{
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]940 const int msgnum = http_get_status_idx(s->txn->status);
941
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200[diff] [blame]942 if (s->be->errmsg[msgnum].str)
943 return &s->be->errmsg[msgnum];
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]944 else if (strm_fe(s)->errmsg[msgnum].str)
945 return &strm_fe(s)->errmsg[msgnum];
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]946 else
947 return &http_err_chunks[msgnum];
948}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]949
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]950void
951http_reply_and_close(struct stream *s, short status, struct chunk *msg)
952{
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]953 s->txn->flags &= ~TX_WAIT_NEXT_RQ;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]954 FLT_STRM_CB(s, flt_http_reply(s, status, msg));
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]955 stream_int_retnclose(&s->si[0], msg);
956}
957
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]958/*
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]959 * returns a known method among HTTP_METH_* or HTTP_METH_OTHER for all unknown
960 * ones.
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]961 */
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]962enum http_meth_t find_http_meth(const char *str, const int len)
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]963{
964 unsigned char m;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]965 const struct http_method_desc *h;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]966
967 m = ((unsigned)*str - 'A');
968
969 if (m < 26) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]970 for (h = http_methods[m]; h->len > 0; h++) {
971 if (unlikely(h->len != len))
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]972 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]973 if (likely(memcmp(str, h->text, h->len) == 0))
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]974 return h->meth;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]975 };
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]976 }
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]977 return HTTP_METH_OTHER;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]978}
979
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]980/* Parse the URI from the given transaction (which is assumed to be in request
981 * phase) and look for the "/" beginning the PATH. If not found, return NULL.
982 * It is returned otherwise.
983 */
Thierry FOURNIER3c331782015-09-17 19:33:35 +0200[diff] [blame]984char *http_get_path(struct http_txn *txn)
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]985{
986 char *ptr, *end;
987
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]988 ptr = txn->req.chn->buf->p + txn->req.sl.rq.u;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]989 end = ptr + txn->req.sl.rq.u_l;
990
991 if (ptr >= end)
992 return NULL;
993
Lukas Tribus23953682017-04-28 13:24:30 +0000[diff] [blame]994 /* RFC7230, par. 2.7 :
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]995 * Request-URI = "*" | absuri | abspath | authority
996 */
997
998 if (*ptr == '*')
999 return NULL;
1000
1001 if (isalpha((unsigned char)*ptr)) {
1002 /* this is a scheme as described by RFC3986, par. 3.1 */
1003 ptr++;
1004 while (ptr < end &&
1005 (isalnum((unsigned char)*ptr) || *ptr == '+' || *ptr == '-' || *ptr == '.'))
1006 ptr++;
1007 /* skip '://' */
1008 if (ptr == end || *ptr++ != ':')
1009 return NULL;
1010 if (ptr == end || *ptr++ != '/')
1011 return NULL;
1012 if (ptr == end || *ptr++ != '/')
1013 return NULL;
1014 }
1015 /* skip [user[:passwd]@]host[:[port]] */
1016
1017 while (ptr < end && *ptr != '/')
1018 ptr++;
1019
1020 if (ptr == end)
1021 return NULL;
1022
1023 /* OK, we got the '/' ! */
1024 return ptr;
1025}
1026
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]1027/* Parse the URI from the given string and look for the "/" beginning the PATH.
1028 * If not found, return NULL. It is returned otherwise.
1029 */
1030static char *
1031http_get_path_from_string(char *str)
1032{
1033 char *ptr = str;
1034
1035 /* RFC2616, par. 5.1.2 :
1036 * Request-URI = "*" | absuri | abspath | authority
1037 */
1038
1039 if (*ptr == '*')
1040 return NULL;
1041
1042 if (isalpha((unsigned char)*ptr)) {
1043 /* this is a scheme as described by RFC3986, par. 3.1 */
1044 ptr++;
1045 while (isalnum((unsigned char)*ptr) || *ptr == '+' || *ptr == '-' || *ptr == '.')
1046 ptr++;
1047 /* skip '://' */
1048 if (*ptr == '\0' || *ptr++ != ':')
1049 return NULL;
1050 if (*ptr == '\0' || *ptr++ != '/')
1051 return NULL;
1052 if (*ptr == '\0' || *ptr++ != '/')
1053 return NULL;
1054 }
1055 /* skip [user[:passwd]@]host[:[port]] */
1056
1057 while (*ptr != '\0' && *ptr != ' ' && *ptr != '/')
1058 ptr++;
1059
1060 if (*ptr == '\0' || *ptr == ' ')
1061 return NULL;
1062
1063 /* OK, we got the '/' ! */
1064 return ptr;
1065}
1066
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]1067/* Returns a 302 for a redirectable request that reaches a server working in
1068 * in redirect mode. This may only be called just after the stream interface
1069 * has moved to SI_ST_ASS. Unprocessable requests are left unchanged and will
1070 * follow normal proxy processing. NOTE: this function is designed to support
1071 * being called once data are scheduled for forwarding.
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1072 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1073void http_perform_server_redirect(struct stream *s, struct stream_interface *si)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1074{
1075 struct http_txn *txn;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1076 struct server *srv;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1077 char *path;
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1078 int len, rewind;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1079
1080 /* 1: create the response header */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1081 trash.len = strlen(HTTP_302);
1082 memcpy(trash.str, HTTP_302, trash.len);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1083
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]1084 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1085
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1086 /* 2: add the server's prefix */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1087 if (trash.len + srv->rdr_len > trash.size)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1088 return;
1089
Willy Tarreaudcb75c42010-01-10 00:24:22 +0100[diff] [blame]1090 /* special prefix "/" means don't change URL */
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1091 if (srv->rdr_len != 1 || *srv->rdr_pfx != '/') {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1092 memcpy(trash.str + trash.len, srv->rdr_pfx, srv->rdr_len);
1093 trash.len += srv->rdr_len;
Willy Tarreaudcb75c42010-01-10 00:24:22 +0100[diff] [blame]1094 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1095
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1096 /* 3: add the request URI. Since it was already forwarded, we need
1097 * to temporarily rewind the buffer.
1098 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1099 txn = s->txn;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1100 b_rew(s->req.buf, rewind = http_hdr_rewind(&txn->req));
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1101
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1102 path = http_get_path(txn);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1103 len = buffer_count(s->req.buf, path, b_ptr(s->req.buf, txn->req.sl.rq.u + txn->req.sl.rq.u_l));
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1104
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1105 b_adv(s->req.buf, rewind);
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1106
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1107 if (!path)
1108 return;
1109
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1110 if (trash.len + len > trash.size - 4) /* 4 for CRLF-CRLF */
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1111 return;
1112
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1113 memcpy(trash.str + trash.len, path, len);
1114 trash.len += len;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1115
1116 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1117 memcpy(trash.str + trash.len, "\r\nProxy-Connection: close\r\n\r\n", 29);
1118 trash.len += 29;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1119 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1120 memcpy(trash.str + trash.len, "\r\nConnection: close\r\n\r\n", 23);
1121 trash.len += 23;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1122 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1123
1124 /* prepare to return without error. */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200[diff] [blame]1125 si_shutr(si);
1126 si_shutw(si);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1127 si->err_type = SI_ET_NONE;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1128 si->state = SI_ST_CLO;
1129
1130 /* send the message */
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1131 txn->status = 302;
1132 http_server_error(s, si, SF_ERR_LOCAL, SF_FINST_C, &trash);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1133
1134 /* FIXME: we should increase a counter of redirects per server and per backend. */
Willy Tarreau4521ba62013-01-24 01:25:25 +0100[diff] [blame]1135 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -0500[diff] [blame]1136 srv_set_sess_last(srv);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1137}
1138
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100[diff] [blame]1139/* Return the error message corresponding to si->err_type. It is assumed
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1140 * that the server side is closed. Note that err_type is actually a
1141 * bitmask, where almost only aborts may be cumulated with other
1142 * values. We consider that aborted operations are more important
1143 * than timeouts or errors due to the fact that nobody else in the
1144 * logs might explain incomplete retries. All others should avoid
1145 * being cumulated. It should normally not be possible to have multiple
1146 * aborts at once, but just in case, the first one in sequence is reported.
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]1147 * Note that connection errors appearing on the second request of a keep-alive
1148 * connection are not reported since this allows the client to retry.
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1149 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1150void http_return_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1151{
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100[diff] [blame]1152 int err_type = si->err_type;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1153
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1154 /* set s->txn->status for http_error_message(s) */
1155 s->txn->status = 503;
1156
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1157 if (err_type & SI_ET_QUEUE_ABRT)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1158 http_server_error(s, si, SF_ERR_CLICL, SF_FINST_Q,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1159 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1160 else if (err_type & SI_ET_CONN_ABRT)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1161 http_server_error(s, si, SF_ERR_CLICL, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1162 (s->txn->flags & TX_NOT_FIRST) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1163 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1164 else if (err_type & SI_ET_QUEUE_TO)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1165 http_server_error(s, si, SF_ERR_SRVTO, SF_FINST_Q,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1166 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1167 else if (err_type & SI_ET_QUEUE_ERR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1168 http_server_error(s, si, SF_ERR_SRVCL, SF_FINST_Q,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1169 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1170 else if (err_type & SI_ET_CONN_TO)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1171 http_server_error(s, si, SF_ERR_SRVTO, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1172 (s->txn->flags & TX_NOT_FIRST) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1173 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1174 else if (err_type & SI_ET_CONN_ERR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1175 http_server_error(s, si, SF_ERR_SRVCL, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1176 (s->flags & SF_SRV_REUSED) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1177 http_error_message(s));
Willy Tarreau2d400bb2012-05-14 12:11:47 +0200[diff] [blame]1178 else if (err_type & SI_ET_CONN_RES)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1179 http_server_error(s, si, SF_ERR_RESOURCE, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1180 (s->txn->flags & TX_NOT_FIRST) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1181 http_error_message(s));
1182 else { /* SI_ET_CONN_OTHER and others */
1183 s->txn->status = 500;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1184 http_server_error(s, si, SF_ERR_INTERNAL, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1185 http_error_message(s));
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1186 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1187}
1188
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]1189extern const char sess_term_cond[8];
1190extern const char sess_fin_state[8];
1191extern const char *monthname[12];
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]1192struct pool_head *pool_head_http_txn;
1193struct pool_head *pool_head_requri;
1194struct pool_head *pool_head_capture = NULL;
1195struct pool_head *pool_head_uniqueid;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1196
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1197/*
1198 * Capture headers from message starting at <som> according to header list
Willy Tarreau54da8db2014-06-13 16:11:48 +0200[diff] [blame]1199 * <cap_hdr>, and fill the <cap> pointers appropriately.
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1200 */
1201void capture_headers(char *som, struct hdr_idx *idx,
1202 char **cap, struct cap_hdr *cap_hdr)
1203{
1204 char *eol, *sol, *col, *sov;
1205 int cur_idx;
1206 struct cap_hdr *h;
1207 int len;
1208
1209 sol = som + hdr_idx_first_pos(idx);
1210 cur_idx = hdr_idx_first_idx(idx);
1211
1212 while (cur_idx) {
1213 eol = sol + idx->v[cur_idx].len;
1214
1215 col = sol;
1216 while (col < eol && *col != ':')
1217 col++;
1218
1219 sov = col + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]1220 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1221 sov++;
1222
1223 for (h = cap_hdr; h; h = h->next) {
Willy Tarreau54da8db2014-06-13 16:11:48 +0200[diff] [blame]1224 if (h->namelen && (h->namelen == col - sol) &&
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1225 (strncasecmp(sol, h->name, h->namelen) == 0)) {
1226 if (cap[h->index] == NULL)
1227 cap[h->index] =
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]1228 pool_alloc(h->pool);
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1229
1230 if (cap[h->index] == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]1231 ha_alert("HTTP capture : out of memory.\n");
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1232 continue;
1233 }
1234
1235 len = eol - sov;
1236 if (len > h->len)
1237 len = h->len;
1238
1239 memcpy(cap[h->index], sov, len);
1240 cap[h->index][len]=0;
1241 }
1242 }
1243 sol = eol + idx->v[cur_idx].cr + 1;
1244 cur_idx = idx->v[cur_idx].next;
1245 }
1246}
1247
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1248/*
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1249 * Returns the data from Authorization header. Function may be called more
1250 * than once so data is stored in txn->auth_data. When no header is found
1251 * 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]1252 * searching again for something we are unable to find anyway. However, if
1253 * the result if valid, the cache is not reused because we would risk to
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1254 * have the credentials overwritten by another stream in parallel.
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1255 */
1256
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1257int
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1258get_http_auth(struct stream *s)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1259{
1260
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1261 struct http_txn *txn = s->txn;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1262 struct chunk auth_method;
1263 struct hdr_ctx ctx;
1264 char *h, *p;
1265 int len;
1266
1267#ifdef DEBUG_AUTH
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1268 printf("Auth for stream %p: %d\n", s, txn->auth.method);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1269#endif
1270
1271 if (txn->auth.method == HTTP_AUTH_WRONG)
1272 return 0;
1273
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1274 txn->auth.method = HTTP_AUTH_WRONG;
1275
1276 ctx.idx = 0;
Willy Tarreau844a7e72010-01-31 21:46:18 +0100[diff] [blame]1277
1278 if (txn->flags & TX_USE_PX_CONN) {
1279 h = "Proxy-Authorization";
1280 len = strlen(h);
1281 } else {
1282 h = "Authorization";
1283 len = strlen(h);
1284 }
1285
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1286 if (!http_find_header2(h, len, s->req.buf->p, &txn->hdr_idx, &ctx))
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1287 return 0;
1288
1289 h = ctx.line + ctx.val;
1290
1291 p = memchr(h, ' ', ctx.vlen);
Willy Tarreau5c557d12016-03-13 08:17:02 +0100[diff] [blame]1292 len = p - h;
1293 if (!p || len <= 0)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1294 return 0;
1295
David Carlier7365f7d2016-04-04 11:54:42 +0100[diff] [blame]1296 if (chunk_initlen(&auth_method, h, 0, len) != 1)
1297 return 0;
1298
Willy Tarreau5c557d12016-03-13 08:17:02 +0100[diff] [blame]1299 chunk_initlen(&txn->auth.method_data, p + 1, 0, ctx.vlen - len - 1);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1300
1301 if (!strncasecmp("Basic", auth_method.str, auth_method.len)) {
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1302 struct chunk *http_auth = get_trash_chunk();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1303
1304 len = base64dec(txn->auth.method_data.str, txn->auth.method_data.len,
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1305 http_auth->str, global.tune.bufsize - 1);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1306
1307 if (len < 0)
1308 return 0;
1309
1310
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1311 http_auth->str[len] = '\0';
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1312
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1313 p = strchr(http_auth->str, ':');
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1314
1315 if (!p)
1316 return 0;
1317
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1318 txn->auth.user = http_auth->str;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1319 *p = '\0';
1320 txn->auth.pass = p+1;
1321
1322 txn->auth.method = HTTP_AUTH_BASIC;
1323 return 1;
1324 }
1325
1326 return 0;
1327}
1328
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]1329
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1330/* convert an HTTP/0.9 request into an HTTP/1.0 request. Returns 1 if the
1331 * conversion succeeded, 0 in case of error. If the request was already 1.X,
1332 * nothing is done and 1 is returned.
1333 */
Willy Tarreau418bfcc2012-03-09 13:56:20 +0100[diff] [blame]1334static int http_upgrade_v09_to_v10(struct http_txn *txn)
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1335{
1336 int delta;
1337 char *cur_end;
Willy Tarreau418bfcc2012-03-09 13:56:20 +0100[diff] [blame]1338 struct http_msg *msg = &txn->req;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1339
1340 if (msg->sl.rq.v_l != 0)
1341 return 1;
1342
Apollon Oikonomopoulos25a15222014-04-06 02:46:00 +0300[diff] [blame]1343 /* RFC 1945 allows only GET for HTTP/0.9 requests */
1344 if (txn->meth != HTTP_METH_GET)
1345 return 0;
1346
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1347 cur_end = msg->chn->buf->p + msg->sl.rq.l;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1348
1349 if (msg->sl.rq.u_l == 0) {
Apollon Oikonomopoulos25a15222014-04-06 02:46:00 +0300[diff] [blame]1350 /* HTTP/0.9 requests *must* have a request URI, per RFC 1945 */
1351 return 0;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1352 }
1353 /* add HTTP version */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1354 delta = buffer_replace2(msg->chn->buf, cur_end, cur_end, " HTTP/1.0\r\n", 11);
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]1355 http_msg_move_end(msg, delta);
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1356 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1357 cur_end = (char *)http_parse_reqline(msg,
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1358 HTTP_MSG_RQMETH,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1359 msg->chn->buf->p, cur_end + 1,
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1360 NULL, NULL);
1361 if (unlikely(!cur_end))
1362 return 0;
1363
1364 /* we have a full HTTP/1.0 request now and we know that
1365 * we have either a CR or an LF at <ptr>.
1366 */
1367 hdr_idx_set_start(&txn->hdr_idx, msg->sl.rq.l, *cur_end == '\r');
1368 return 1;
1369}
1370
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1371/* Parse the Connection: header of an HTTP request, looking for both "close"
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1372 * and "keep-alive" values. If we already know that some headers may safely
1373 * be removed, we remove them now. The <to_del> flags are used for that :
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1374 * - bit 0 means remove "close" headers (in HTTP/1.0 requests/responses)
1375 * - 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]1376 * Presence of the "Upgrade" token is also checked and reported.
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1377 * The TX_HDR_CONN_* flags are adjusted in txn->flags depending on what was
1378 * found, and TX_CON_*_SET is adjusted depending on what is left so only
1379 * harmless combinations may be removed. Do not call that after changes have
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1380 * been processed.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1381 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1382void 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]1383{
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1384 struct hdr_ctx ctx;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1385 const char *hdr_val = "Connection";
1386 int hdr_len = 10;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1387
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1388 if (txn->flags & TX_HDR_CONN_PRS)
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1389 return;
1390
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1391 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1392 hdr_val = "Proxy-Connection";
1393 hdr_len = 16;
1394 }
1395
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1396 ctx.idx = 0;
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1397 txn->flags &= ~(TX_CON_KAL_SET|TX_CON_CLO_SET);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1398 while (http_find_header2(hdr_val, hdr_len, msg->chn->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1399 if (ctx.vlen >= 10 && word_match(ctx.line + ctx.val, ctx.vlen, "keep-alive", 10)) {
1400 txn->flags |= TX_HDR_CONN_KAL;
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1401 if (to_del & 2)
1402 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1403 else
1404 txn->flags |= TX_CON_KAL_SET;
1405 }
1406 else if (ctx.vlen >= 5 && word_match(ctx.line + ctx.val, ctx.vlen, "close", 5)) {
1407 txn->flags |= TX_HDR_CONN_CLO;
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1408 if (to_del & 1)
1409 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1410 else
1411 txn->flags |= TX_CON_CLO_SET;
1412 }
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]1413 else if (ctx.vlen >= 7 && word_match(ctx.line + ctx.val, ctx.vlen, "upgrade", 7)) {
1414 txn->flags |= TX_HDR_CONN_UPG;
1415 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1416 }
1417
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1418 txn->flags |= TX_HDR_CONN_PRS;
1419 return;
1420}
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1421
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1422/* Apply desired changes on the Connection: header. Values may be removed and/or
1423 * added depending on the <wanted> flags, which are exclusively composed of
1424 * TX_CON_CLO_SET and TX_CON_KAL_SET, depending on what flags are desired. The
1425 * TX_CON_*_SET flags are adjusted in txn->flags depending on what is left.
1426 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1427void http_change_connection_header(struct http_txn *txn, struct http_msg *msg, int wanted)
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1428{
1429 struct hdr_ctx ctx;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1430 const char *hdr_val = "Connection";
1431 int hdr_len = 10;
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1432
1433 ctx.idx = 0;
1434
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1435
1436 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1437 hdr_val = "Proxy-Connection";
1438 hdr_len = 16;
1439 }
1440
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1441 txn->flags &= ~(TX_CON_CLO_SET | TX_CON_KAL_SET);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1442 while (http_find_header2(hdr_val, hdr_len, msg->chn->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1443 if (ctx.vlen >= 10 && word_match(ctx.line + ctx.val, ctx.vlen, "keep-alive", 10)) {
1444 if (wanted & TX_CON_KAL_SET)
1445 txn->flags |= TX_CON_KAL_SET;
1446 else
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1447 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1448 }
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1449 else if (ctx.vlen >= 5 && word_match(ctx.line + ctx.val, ctx.vlen, "close", 5)) {
1450 if (wanted & TX_CON_CLO_SET)
1451 txn->flags |= TX_CON_CLO_SET;
1452 else
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1453 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreau0dfdf192010-01-05 11:33:11 +0100[diff] [blame]1454 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1455 }
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1456
1457 if (wanted == (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
1458 return;
1459
1460 if ((wanted & TX_CON_CLO_SET) && !(txn->flags & TX_CON_CLO_SET)) {
1461 txn->flags |= TX_CON_CLO_SET;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1462 hdr_val = "Connection: close";
1463 hdr_len = 17;
1464 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1465 hdr_val = "Proxy-Connection: close";
1466 hdr_len = 23;
1467 }
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1468 http_header_add_tail2(msg, &txn->hdr_idx, hdr_val, hdr_len);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1469 }
1470
1471 if ((wanted & TX_CON_KAL_SET) && !(txn->flags & TX_CON_KAL_SET)) {
1472 txn->flags |= TX_CON_KAL_SET;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1473 hdr_val = "Connection: keep-alive";
1474 hdr_len = 22;
1475 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1476 hdr_val = "Proxy-Connection: keep-alive";
1477 hdr_len = 28;
1478 }
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1479 http_header_add_tail2(msg, &txn->hdr_idx, hdr_val, hdr_len);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1480 }
1481 return;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1482}
1483
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1484/* Parses a qvalue and returns it multipled by 1000, from 0 to 1000. If the
1485 * value is larger than 1000, it is bound to 1000. The parser consumes up to
1486 * 1 digit, one dot and 3 digits and stops on the first invalid character.
1487 * Unparsable qvalues return 1000 as "q=1.000".
1488 */
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]1489int parse_qvalue(const char *qvalue, const char **end)
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1490{
1491 int q = 1000;
1492
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1493 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1494 goto out;
1495 q = (*qvalue++ - '0') * 1000;
1496
1497 if (*qvalue++ != '.')
1498 goto out;
1499
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1500 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1501 goto out;
1502 q += (*qvalue++ - '0') * 100;
1503
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1504 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1505 goto out;
1506 q += (*qvalue++ - '0') * 10;
1507
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1508 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1509 goto out;
1510 q += (*qvalue++ - '0') * 1;
1511 out:
1512 if (q > 1000)
1513 q = 1000;
Willy Tarreau38b3aa52014-04-22 23:32:05 +0200[diff] [blame]1514 if (end)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]1515 *end = qvalue;
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1516 return q;
1517}
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]1518
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1519void 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]1520{
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]1521 struct proxy *fe = strm_fe(s);
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1522 int tmp = TX_CON_WANT_KAL;
1523
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1524 if (!((fe->options2|s->be->options2) & PR_O2_FAKE_KA)) {
1525 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_TUN ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1526 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_TUN)
1527 tmp = TX_CON_WANT_TUN;
1528
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1529 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1530 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)
1531 tmp = TX_CON_WANT_TUN;
1532 }
1533
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1534 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1535 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL) {
1536 /* option httpclose + server_close => forceclose */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1537 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1538 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)
1539 tmp = TX_CON_WANT_CLO;
1540 else
1541 tmp = TX_CON_WANT_SCL;
1542 }
1543
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1544 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_FCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1545 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_FCL)
1546 tmp = TX_CON_WANT_CLO;
1547
1548 if ((txn->flags & TX_CON_WANT_MSK) < tmp)
1549 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | tmp;
1550
1551 if (!(txn->flags & TX_HDR_CONN_PRS) &&
1552 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) {
1553 /* parse the Connection header and possibly clean it */
1554 int to_del = 0;
1555 if ((msg->flags & HTTP_MSGF_VER_11) ||
1556 ((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1557 !((fe->options2|s->be->options2) & PR_O2_FAKE_KA)))
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1558 to_del |= 2; /* remove "keep-alive" */
1559 if (!(msg->flags & HTTP_MSGF_VER_11))
1560 to_del |= 1; /* remove "close" */
1561 http_parse_connection_header(txn, msg, to_del);
1562 }
1563
1564 /* check if client or config asks for explicit close in KAL/SCL */
1565 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
1566 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) &&
1567 ((txn->flags & TX_HDR_CONN_CLO) || /* "connection: close" */
1568 (!(msg->flags & HTTP_MSGF_VER_11) && !(txn->flags & TX_HDR_CONN_KAL)) || /* no "connection: k-a" in 1.0 */
1569 !(msg->flags & HTTP_MSGF_XFER_LEN) || /* no length known => close */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1570 fe->state == PR_STSTOPPED)) /* frontend is stopping */
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1571 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
1572}
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]1573
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1574/* This stream analyser waits for a complete HTTP request. It returns 1 if the
1575 * processing can continue on next analysers, or zero if it either needs more
1576 * data or wants to immediately abort the request (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1577 * 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]1578 * when it has nothing left to do, and may remove any analyser when it wants to
1579 * abort.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1580 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1581int http_wait_for_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1582{
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1583 /*
1584 * We will parse the partial (or complete) lines.
1585 * We will check the request syntax, and also join multi-line
1586 * headers. An index of all the lines will be elaborated while
1587 * parsing.
1588 *
1589 * For the parsing, we use a 28 states FSM.
1590 *
1591 * Here is the information we currently have :
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1592 * req->buf->p = beginning of request
1593 * req->buf->p + msg->eoh = end of processed headers / start of current one
1594 * req->buf->p + req->buf->i = end of input data
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]1595 * msg->eol = end of current header or line (LF or CRLF)
1596 * msg->next = first non-visited byte
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1597 *
1598 * 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]1599 * we will set a few fields (txn->meth, sn->flags/SF_REDIRECTABLE).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1600 * We also check for monitor-uri, logging, HTTP/0.9 to 1.0 conversion, and
1601 * finally headers capture.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1602 */
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1603
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1604 int cur_idx;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1605 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1606 struct http_txn *txn = s->txn;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1607 struct http_msg *msg = &txn->req;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]1608 struct hdr_ctx ctx;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1609
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1610 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
Willy Tarreau6bf17362009-02-24 10:48:35 +0100[diff] [blame]1611 now_ms, __FUNCTION__,
1612 s,
1613 req,
1614 req->rex, req->wex,
1615 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1616 req->buf->i,
Willy Tarreau6bf17362009-02-24 10:48:35 +0100[diff] [blame]1617 req->analysers);
1618
Willy Tarreau52a0c602009-08-16 22:45:38 +0200[diff] [blame]1619 /* we're speaking HTTP here, so let's speak HTTP to the client */
1620 s->srv_error = http_return_srv_error;
1621
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]1622 /* There's a protected area at the end of the buffer for rewriting
1623 * purposes. We don't want to start to parse the request if the
1624 * protected area is affected, because we may have to move processed
1625 * data later, which is much more complicated.
1626 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1627 if (buffer_not_empty(req->buf) && msg->msg_state < HTTP_MSG_ERROR) {
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200[diff] [blame]1628
1629 /* This point is executed when some data is avalaible for analysis,
1630 * so we log the end of the idle time. */
1631 if (s->logs.t_idle == -1)
1632 s->logs.t_idle = tv_ms_elapsed(&s->logs.tv_accept, &now) - s->logs.t_handshake;
1633
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]1634 if (txn->flags & TX_NOT_FIRST) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]1635 if (unlikely(!channel_is_rewritable(req))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1636 if (req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]1637 goto failed_keep_alive;
Willy Tarreau2ab6eb12010-01-02 22:04:45 +0100[diff] [blame]1638 /* some data has still not left the buffer, wake us once that's done */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]1639 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1640 req->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]1641 req->flags |= CF_WAKE_WRITE;
Willy Tarreau2ab6eb12010-01-02 22:04:45 +0100[diff] [blame]1642 return 0;
1643 }
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]1644 if (unlikely(bi_end(req->buf) < b_ptr(req->buf, msg->next) ||
1645 bi_end(req->buf) > req->buf->data + req->buf->size - global.tune.maxrewrite))
1646 buffer_slow_realign(req->buf);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]1647 }
1648
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1649 if (likely(msg->next < req->buf->i)) /* some unparsed data are available */
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]1650 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]1651 }
1652
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1653 /* 1: we might have to print this header in debug mode */
1654 if (unlikely((global.mode & MODE_DEBUG) &&
1655 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]1656 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1657 char *eol, *sol;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1658
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1659 sol = req->buf->p;
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]1660 /* this is a bit complex : in case of error on the request line,
1661 * we know that rq.l is still zero, so we display only the part
1662 * up to the end of the line (truncated by debug_hdr).
1663 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1664 eol = sol + (msg->sl.rq.l ? msg->sl.rq.l : req->buf->i);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1665 debug_hdr("clireq", s, sol, eol);
Willy Tarreau45e73e32006-12-17 00:05:15 +0100[diff] [blame]1666
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1667 sol += hdr_idx_first_pos(&txn->hdr_idx);
1668 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1669
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1670 while (cur_idx) {
1671 eol = sol + txn->hdr_idx.v[cur_idx].len;
1672 debug_hdr("clihdr", s, sol, eol);
1673 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
1674 cur_idx = txn->hdr_idx.v[cur_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1675 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1676 }
1677
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1678
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1679 /*
1680 * Now we quickly check if we have found a full valid request.
1681 * If not so, we check the FD and buffer states before leaving.
1682 * A full request is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]1683 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1684 * requests are checked first. When waiting for a second request
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1685 * on a keep-alive stream, if we encounter and error, close, t/o,
1686 * we note the error in the stream flags but don't set any state.
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1687 * Since the error will be noted there, it will not be counted by
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1688 * process_stream() as a frontend error.
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1689 * Last, we may increase some tracked counters' http request errors on
1690 * the cases that are deliberately the client's fault. For instance,
1691 * a timeout or connection reset is not counted as an error. However
1692 * a bad request is.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1693 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1694
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]1695 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1696 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1697 * First, let's catch bad requests.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1698 */
Willy Tarreau3e1b6d12010-03-04 23:02:38 +0100[diff] [blame]1699 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1700 stream_inc_http_req_ctr(s);
1701 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1702 proxy_inc_fe_req_ctr(sess->fe);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1703 goto return_bad_req;
Willy Tarreau3e1b6d12010-03-04 23:02:38 +0100[diff] [blame]1704 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1705
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1706 /* 1: Since we are in header mode, if there's no space
1707 * left for headers, we won't be able to free more
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1708 * later, so the stream will never terminate. We
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1709 * must terminate it now.
1710 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1711 if (unlikely(buffer_full(req->buf, global.tune.maxrewrite))) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1712 /* FIXME: check if URI is set and return Status
1713 * 414 Request URI too long instead.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1714 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1715 stream_inc_http_req_ctr(s);
1716 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1717 proxy_inc_fe_req_ctr(sess->fe);
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]1718 if (msg->err_pos < 0)
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1719 msg->err_pos = req->buf->i;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1720 goto return_bad_req;
1721 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1722
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1723 /* 2: have we encountered a read error ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1724 else if (req->flags & CF_READ_ERROR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1725 if (!(s->flags & SF_ERR_MASK))
1726 s->flags |= SF_ERR_CLICL;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1727
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1728 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1729 goto failed_keep_alive;
1730
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]1731 if (sess->fe->options & PR_O_IGNORE_PRB)
1732 goto failed_keep_alive;
1733
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1734 /* we cannot return any message on error */
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1735 if (msg->err_pos >= 0) {
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1736 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]1737 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1738 }
1739
Willy Tarreaudc979f22012-12-04 10:39:01 +0100[diff] [blame]1740 txn->status = 400;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1741 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1742 msg->msg_state = HTTP_MSG_ERROR;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]1743 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1744 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1745 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1746 proxy_inc_fe_req_ctr(sess->fe);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1747 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1748 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]1749 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1750
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1751 if (!(s->flags & SF_FINST_MASK))
1752 s->flags |= SF_FINST_R;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1753 return 0;
1754 }
Willy Tarreauf9839bd2008-08-27 23:57:16 +0200[diff] [blame]1755
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1756 /* 3: has the read timeout expired ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1757 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]1758 if (!(s->flags & SF_ERR_MASK))
1759 s->flags |= SF_ERR_CLITO;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1760
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1761 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1762 goto failed_keep_alive;
1763
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]1764 if (sess->fe->options & PR_O_IGNORE_PRB)
1765 goto failed_keep_alive;
1766
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1767 /* read timeout : give up with an error message. */
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1768 if (msg->err_pos >= 0) {
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1769 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]1770 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1771 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1772 txn->status = 408;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1773 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1774 msg->msg_state = HTTP_MSG_ERROR;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1775 http_reply_and_close(s, txn->status, http_error_message(s));
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1776 req->analysers &= AN_REQ_FLT_END;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1777
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1778 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1779 proxy_inc_fe_req_ctr(sess->fe);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1780 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1781 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]1782 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1783
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1784 if (!(s->flags & SF_FINST_MASK))
1785 s->flags |= SF_FINST_R;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1786 return 0;
1787 }
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]1788
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1789 /* 4: have we encountered a close ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1790 else if (req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1791 if (!(s->flags & SF_ERR_MASK))
1792 s->flags |= SF_ERR_CLICL;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1793
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1794 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1795 goto failed_keep_alive;
1796
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]1797 if (sess->fe->options & PR_O_IGNORE_PRB)
1798 goto failed_keep_alive;
1799
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]1800 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1801 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]1802 txn->status = 400;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1803 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1804 msg->msg_state = HTTP_MSG_ERROR;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1805 http_reply_and_close(s, txn->status, http_error_message(s));
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1806 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1807 stream_inc_http_err_ctr(s);
1808 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1809 proxy_inc_fe_req_ctr(sess->fe);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1810 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1811 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]1812 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1813
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1814 if (!(s->flags & SF_FINST_MASK))
1815 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]1816 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1817 }
1818
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]1819 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1820 req->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1821 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]1822#ifdef TCP_QUICKACK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]1823 if (sess->listener->options & LI_O_NOQUICKACK && req->buf->i &&
1824 objt_conn(sess->origin) && conn_ctrl_ready(__objt_conn(sess->origin))) {
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]1825 /* We need more data, we have to re-enable quick-ack in case we
1826 * previously disabled it, otherwise we might cause the client
1827 * to delay next data.
1828 */
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]1829 setsockopt(__objt_conn(sess->origin)->handle.fd, IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one));
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]1830 }
1831#endif
Willy Tarreau1b194fe2009-03-21 21:10:04 +0100[diff] [blame]1832
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1833 if ((msg->msg_state != HTTP_MSG_RQBEFORE) && (txn->flags & TX_WAIT_NEXT_RQ)) {
1834 /* If the client starts to talk, let's fall back to
1835 * request timeout processing.
1836 */
1837 txn->flags &= ~TX_WAIT_NEXT_RQ;
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]1838 req->analyse_exp = TICK_ETERNITY;
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1839 }
1840
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1841 /* just set the request timeout once at the beginning of the request */
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]1842 if (!tick_isset(req->analyse_exp)) {
1843 if ((msg->msg_state == HTTP_MSG_RQBEFORE) &&
1844 (txn->flags & TX_WAIT_NEXT_RQ) &&
1845 tick_isset(s->be->timeout.httpka))
1846 req->analyse_exp = tick_add(now_ms, s->be->timeout.httpka);
1847 else
1848 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
1849 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1850
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1851 /* we're not ready yet */
1852 return 0;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1853
1854 failed_keep_alive:
1855 /* Here we process low-level errors for keep-alive requests. In
1856 * short, if the request is not the first one and it experiences
1857 * a timeout, read error or shutdown, we just silently close so
1858 * that the client can try again.
1859 */
1860 txn->status = 0;
1861 msg->msg_state = HTTP_MSG_RQBEFORE;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1862 req->analysers &= AN_REQ_FLT_END;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1863 s->logs.logwait = 0;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]1864 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1865 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]1866 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1867 return 0;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1868 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1869
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1870 /* OK now we have a complete HTTP request with indexed headers. Let's
1871 * complete the request parsing by setting a few fields we will need
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1872 * 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]1873 * 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]1874 * points to the CRLF of the request line. msg->next points to the first
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]1875 * byte after the last LF. msg->sov points to the first byte of data.
1876 * msg->eol cannot be trusted because it may have been left uninitialized
1877 * (for instance in the absence of headers).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1878 */
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]1879
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1880 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1881 proxy_inc_fe_req_ctr(sess->fe); /* one more valid request for this FE */
Willy Tarreaud9b587f2010-02-26 10:05:55 +0100[diff] [blame]1882
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]1883 if (txn->flags & TX_WAIT_NEXT_RQ) {
1884 /* kill the pending keep-alive timeout */
1885 txn->flags &= ~TX_WAIT_NEXT_RQ;
1886 req->analyse_exp = TICK_ETERNITY;
1887 }
1888
1889
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1890 /* Maybe we found in invalid header name while we were configured not
1891 * to block on that, so we have to capture it now.
1892 */
1893 if (unlikely(msg->err_pos >= 0))
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1894 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]1895
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1896 /*
1897 * 1: identify the method
1898 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1899 txn->meth = find_http_meth(req->buf->p, msg->sl.rq.m_l);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1900
1901 /* we can make use of server redirect on GET and HEAD */
1902 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1903 s->flags |= SF_REDIRECTABLE;
Willy Tarreau91659792017-11-10 19:38:10 +0100[diff] [blame]1904 else if (txn->meth == HTTP_METH_OTHER &&
1905 msg->sl.rq.m_l == 3 && memcmp(req->buf->p, "PRI", 3) == 0) {
1906 /* PRI is reserved for the HTTP/2 preface */
1907 msg->err_pos = 0;
1908 goto return_bad_req;
1909 }
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200[diff] [blame]1910
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1911 /*
1912 * 2: check if the URI matches the monitor_uri.
1913 * We have to do this for every request which gets in, because
1914 * the monitor-uri is defined by the frontend.
1915 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1916 if (unlikely((sess->fe->monitor_uri_len != 0) &&
1917 (sess->fe->monitor_uri_len == msg->sl.rq.u_l) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1918 !memcmp(req->buf->p + msg->sl.rq.u,
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1919 sess->fe->monitor_uri,
1920 sess->fe->monitor_uri_len))) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1921 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1922 * We have found the monitor URI
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1923 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1924 struct acl_cond *cond;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1925
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1926 s->flags |= SF_MONITOR;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1927 HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1928
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1929 /* Check if we want to fail this monitor request or not */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1930 list_for_each_entry(cond, &sess->fe->mon_fail_cond, list) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]1931 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]1932
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1933 ret = acl_pass(ret);
1934 if (cond->pol == ACL_COND_UNLESS)
1935 ret = !ret;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1936
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1937 if (ret) {
1938 /* we fail this request, let's return 503 service unavail */
1939 txn->status = 503;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1940 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1941 if (!(s->flags & SF_ERR_MASK))
1942 s->flags |= SF_ERR_LOCAL; /* we don't want a real error here */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1943 goto return_prx_cond;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1944 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1945 }
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100[diff] [blame]1946
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1947 /* nothing to fail, let's reply normaly */
1948 txn->status = 200;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1949 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1950 if (!(s->flags & SF_ERR_MASK))
1951 s->flags |= SF_ERR_LOCAL; /* we don't want a real error here */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1952 goto return_prx_cond;
1953 }
1954
1955 /*
1956 * 3: Maybe we have to copy the original REQURI for the logs ?
1957 * Note: we cannot log anymore if the request has been
1958 * classified as invalid.
1959 */
1960 if (unlikely(s->logs.logwait & LW_REQ)) {
1961 /* we have a complete HTTP request that we must log */
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]1962 if ((txn->uri = pool_alloc(pool_head_requri)) != NULL) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1963 int urilen = msg->sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1964
Stéphane Cottin23e9e932017-05-18 08:58:41 +0200[diff] [blame]1965 if (urilen >= global.tune.requri_len )
1966 urilen = global.tune.requri_len - 1;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1967 memcpy(txn->uri, req->buf->p, urilen);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1968 txn->uri[urilen] = 0;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1969
Willy Tarreaud79a3b22012-12-28 09:40:16 +0100[diff] [blame]1970 if (!(s->logs.logwait &= ~(LW_REQ|LW_INIT)))
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1971 s->do_log(s);
1972 } else {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]1973 ha_alert("HTTP logging : out of memory.\n");
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1974 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1975 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]1976
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]1977 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
1978 * exactly one digit "." one digit. This check may be disabled using
1979 * option accept-invalid-http-request.
1980 */
1981 if (!(sess->fe->options2 & PR_O2_REQBUG_OK)) {
1982 if (msg->sl.rq.v_l != 8) {
1983 msg->err_pos = msg->sl.rq.v;
1984 goto return_bad_req;
1985 }
1986
1987 if (req->buf->p[msg->sl.rq.v + 4] != '/' ||
1988 !isdigit((unsigned char)req->buf->p[msg->sl.rq.v + 5]) ||
1989 req->buf->p[msg->sl.rq.v + 6] != '.' ||
1990 !isdigit((unsigned char)req->buf->p[msg->sl.rq.v + 7])) {
1991 msg->err_pos = msg->sl.rq.v + 4;
1992 goto return_bad_req;
1993 }
1994 }
Willy Tarreau13317662015-05-01 13:47:08 +0200[diff] [blame]1995 else {
1996 /* 4. We may have to convert HTTP/0.9 requests to HTTP/1.0 */
1997 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
1998 goto return_bad_req;
1999 }
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]2000
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2001 /* ... and check if the request is HTTP/1.1 or above */
2002 if ((msg->sl.rq.v_l == 8) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2003 ((req->buf->p[msg->sl.rq.v + 5] > '1') ||
2004 ((req->buf->p[msg->sl.rq.v + 5] == '1') &&
2005 (req->buf->p[msg->sl.rq.v + 7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2006 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2007
2008 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]2009 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]2010
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2011 /* if the frontend has "option http-use-proxy-header", we'll check if
2012 * we have what looks like a proxied connection instead of a connection,
2013 * and in this case set the TX_USE_PX_CONN flag to use Proxy-connection.
2014 * Note that this is *not* RFC-compliant, however browsers and proxies
2015 * happen to do that despite being non-standard :-(
2016 * We consider that a request not beginning with either '/' or '*' is
2017 * a proxied connection, which covers both "scheme://location" and
2018 * CONNECT ip:port.
2019 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2020 if ((sess->fe->options2 & PR_O2_USE_PXHDR) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2021 req->buf->p[msg->sl.rq.u] != '/' && req->buf->p[msg->sl.rq.u] != '*')
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2022 txn->flags |= TX_USE_PX_CONN;
2023
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2024 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2025 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2026
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2027 /* 5: we may need to capture headers */
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]2028 if (unlikely((s->logs.logwait & LW_REQHDR) && s->req_cap))
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2029 capture_headers(req->buf->p, &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]2030 s->req_cap, sess->fe->req_cap);
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]2031
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2032 /* 6: determine the transfer-length according to RFC2616 #4.4, updated
2033 * by RFC7230#3.3.3 :
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2034 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2035 * The length of a message body is determined by one of the following
2036 * (in order of precedence):
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2037 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2038 * 1. Any response to a HEAD request and any response with a 1xx
2039 * (Informational), 204 (No Content), or 304 (Not Modified) status
2040 * code is always terminated by the first empty line after the
2041 * header fields, regardless of the header fields present in the
2042 * message, and thus cannot contain a message body.
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2043 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2044 * 2. Any 2xx (Successful) response to a CONNECT request implies that
2045 * the connection will become a tunnel immediately after the empty
2046 * line that concludes the header fields. A client MUST ignore any
2047 * Content-Length or Transfer-Encoding header fields received in
2048 * such a message.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2049 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2050 * 3. If a Transfer-Encoding header field is present and the chunked
2051 * transfer coding (Section 4.1) is the final encoding, the message
2052 * body length is determined by reading and decoding the chunked
2053 * data until the transfer coding indicates the data is complete.
2054 *
2055 * If a Transfer-Encoding header field is present in a response and
2056 * the chunked transfer coding is not the final encoding, the
2057 * message body length is determined by reading the connection until
2058 * it is closed by the server. If a Transfer-Encoding header field
2059 * is present in a request and the chunked transfer coding is not
2060 * the final encoding, the message body length cannot be determined
2061 * reliably; the server MUST respond with the 400 (Bad Request)
2062 * status code and then close the connection.
2063 *
2064 * If a message is received with both a Transfer-Encoding and a
2065 * Content-Length header field, the Transfer-Encoding overrides the
2066 * Content-Length. Such a message might indicate an attempt to
2067 * perform request smuggling (Section 9.5) or response splitting
2068 * (Section 9.4) and ought to be handled as an error. A sender MUST
2069 * remove the received Content-Length field prior to forwarding such
2070 * a message downstream.
2071 *
2072 * 4. If a message is received without Transfer-Encoding and with
2073 * either multiple Content-Length header fields having differing
2074 * field-values or a single Content-Length header field having an
2075 * invalid value, then the message framing is invalid and the
2076 * recipient MUST treat it as an unrecoverable error. If this is a
2077 * request message, the server MUST respond with a 400 (Bad Request)
2078 * status code and then close the connection. If this is a response
2079 * message received by a proxy, the proxy MUST close the connection
2080 * to the server, discard the received response, and send a 502 (Bad
2081 * Gateway) response to the client. If this is a response message
2082 * received by a user agent, the user agent MUST close the
2083 * connection to the server and discard the received response.
2084 *
2085 * 5. If a valid Content-Length header field is present without
2086 * Transfer-Encoding, its decimal value defines the expected message
2087 * body length in octets. If the sender closes the connection or
2088 * the recipient times out before the indicated number of octets are
2089 * received, the recipient MUST consider the message to be
2090 * incomplete and close the connection.
2091 *
2092 * 6. If this is a request message and none of the above are true, then
2093 * the message body length is zero (no message body is present).
2094 *
2095 * 7. Otherwise, this is a response message without a declared message
2096 * body length, so the message body length is determined by the
2097 * number of octets received prior to the server closing the
2098 * connection.
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2099 */
2100
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2101 ctx.idx = 0;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2102 /* set TE_CHNK and XFER_LEN only if "chunked" is seen last */
Willy Tarreau4979d5c2015-05-01 10:06:30 +0200[diff] [blame]2103 while (http_find_header2("Transfer-Encoding", 17, req->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2104 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]2105 msg->flags |= HTTP_MSGF_TE_CHNK;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2106 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2107 /* chunked not last, return badreq */
2108 goto return_bad_req;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2109 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2110 }
2111
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]2112 /* Chunked requests must have their content-length removed */
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2113 ctx.idx = 0;
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]2114 if (msg->flags & HTTP_MSGF_TE_CHNK) {
2115 while (http_find_header2("Content-Length", 14, req->buf->p, &txn->hdr_idx, &ctx))
2116 http_remove_header2(msg, &txn->hdr_idx, &ctx);
2117 }
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2118 else while (http_find_header2("Content-Length", 14, req->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2119 signed long long cl;
2120
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2121 if (!ctx.vlen) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2122 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2123 goto return_bad_req;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2124 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2125
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2126 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2127 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2128 goto return_bad_req; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2129 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2130
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2131 if (cl < 0) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2132 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2133 goto return_bad_req;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2134 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2135
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2136 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2137 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2138 goto return_bad_req; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2139 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2140
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]2141 msg->flags |= HTTP_MSGF_CNT_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]2142 msg->body_len = msg->chunk_len = cl;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2143 }
2144
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2145 /* even bodyless requests have a known length */
2146 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2147
Willy Tarreau179085c2014-04-28 16:48:56 +0200[diff] [blame]2148 /* Until set to anything else, the connection mode is set as Keep-Alive. It will
2149 * only change if both the request and the config reference something else.
2150 * Option httpclose by itself sets tunnel mode where headers are mangled.
2151 * However, if another mode is set, it will affect it (eg: server-close/
2152 * keep-alive + httpclose = close). Note that we avoid to redo the same work
2153 * if FE and BE have the same settings (common). The method consists in
2154 * checking if options changed between the two calls (implying that either
2155 * one is non-null, or one of them is non-null and we are there for the first
2156 * time.
2157 */
2158 if (!(txn->flags & TX_HDR_CONN_PRS) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2159 ((sess->fe->options & PR_O_HTTP_MODE) != (s->be->options & PR_O_HTTP_MODE)))
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2160 http_adjust_conn_mode(s, txn, msg);
Willy Tarreau179085c2014-04-28 16:48:56 +0200[diff] [blame]2161
Willy Tarreau9fbe18e2015-05-01 22:42:08 +0200[diff] [blame]2162 /* we may have to wait for the request's body */
2163 if ((s->be->options & PR_O_WREQ_BODY) &&
2164 (msg->body_len || (msg->flags & HTTP_MSGF_TE_CHNK)))
2165 req->analysers |= AN_REQ_HTTP_BODY;
2166
Willy Tarreau83ece462017-12-21 15:13:09 +0100[diff] [blame]2167 /*
2168 * RFC7234#4:
2169 * A cache MUST write through requests with methods
2170 * that are unsafe (Section 4.2.1 of [RFC7231]) to
2171 * the origin server; i.e., a cache is not allowed
2172 * to generate a reply to such a request before
2173 * having forwarded the request and having received
2174 * a corresponding response.
2175 *
2176 * RFC7231#4.2.1:
2177 * Of the request methods defined by this
2178 * specification, the GET, HEAD, OPTIONS, and TRACE
2179 * methods are defined to be safe.
2180 */
2181 if (likely(txn->meth == HTTP_METH_GET ||
2182 txn->meth == HTTP_METH_HEAD ||
2183 txn->meth == HTTP_METH_OPTIONS ||
2184 txn->meth == HTTP_METH_TRACE))
2185 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
2186
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2187 /* end of job, return OK */
Willy Tarreau3a816292009-07-07 10:55:49 +0200[diff] [blame]2188 req->analysers &= ~an_bit;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2189 req->analyse_exp = TICK_ETERNITY;
2190 return 1;
2191
2192 return_bad_req:
2193 /* We centralize bad requests processing here */
2194 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
2195 /* we detected a parsing error. We want to archive this request
2196 * in the dedicated proxy area for later troubleshooting.
2197 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]2198 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]2199 }
2200
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2201 txn->req.err_state = txn->req.msg_state;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2202 txn->req.msg_state = HTTP_MSG_ERROR;
2203 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]2204 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]2205
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]2206 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]2207 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]2208 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2209
2210 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2211 if (!(s->flags & SF_ERR_MASK))
2212 s->flags |= SF_ERR_PRXCOND;
2213 if (!(s->flags & SF_FINST_MASK))
2214 s->flags |= SF_FINST_R;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2215
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]2216 req->analysers &= AN_REQ_FLT_END;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2217 req->analyse_exp = TICK_ETERNITY;
2218 return 0;
2219}
2220
Willy Tarreau4f8a83c2012-06-04 00:26:23 +0200[diff] [blame]2221
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2222/* This function prepares an applet to handle the stats. It can deal with the
2223 * "100-continue" expectation, check that admin rules are met for POST requests,
2224 * and program a response message if something was unexpected. It cannot fail
2225 * 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]2226 * analysers nor counters, which are left to the caller. It does not touch
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2227 * s->target which is supposed to already point to the stats applet. The caller
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2228 * is expected to have already assigned an appctx to the stream.
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2229 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2230int http_handle_stats(struct stream *s, struct channel *req)
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2231{
2232 struct stats_admin_rule *stats_admin_rule;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]2233 struct stream_interface *si = &s->si[1];
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2234 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2235 struct http_txn *txn = s->txn;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2236 struct http_msg *msg = &txn->req;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2237 struct uri_auth *uri_auth = s->be->uri_auth;
2238 const char *uri, *h, *lookup;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2239 struct appctx *appctx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2240
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2241 appctx = si_appctx(si);
2242 memset(&appctx->ctx.stats, 0, sizeof(appctx->ctx.stats));
2243 appctx->st1 = appctx->st2 = 0;
2244 appctx->ctx.stats.st_code = STAT_STATUS_INIT;
2245 appctx->ctx.stats.flags |= STAT_FMT_HTML; /* assume HTML mode by default */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2246 if ((msg->flags & HTTP_MSGF_VER_11) && (s->txn->meth != HTTP_METH_HEAD))
Willy Tarreauaf3cf702014-04-22 22:19:53 +0200[diff] [blame]2247 appctx->ctx.stats.flags |= STAT_CHUNKED;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2248
2249 uri = msg->chn->buf->p + msg->sl.rq.u;
2250 lookup = uri + uri_auth->uri_len;
2251
2252 for (h = lookup; h <= uri + msg->sl.rq.u_l - 3; h++) {
2253 if (memcmp(h, ";up", 3) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2254 appctx->ctx.stats.flags |= STAT_HIDE_DOWN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2255 break;
2256 }
2257 }
2258
2259 if (uri_auth->refresh) {
2260 for (h = lookup; h <= uri + msg->sl.rq.u_l - 10; h++) {
2261 if (memcmp(h, ";norefresh", 10) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2262 appctx->ctx.stats.flags |= STAT_NO_REFRESH;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2263 break;
2264 }
2265 }
2266 }
2267
2268 for (h = lookup; h <= uri + msg->sl.rq.u_l - 4; h++) {
2269 if (memcmp(h, ";csv", 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2270 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2271 break;
2272 }
2273 }
2274
Willy Tarreau1e62df92016-01-11 18:57:53 +0100[diff] [blame]2275 for (h = lookup; h <= uri + msg->sl.rq.u_l - 6; h++) {
2276 if (memcmp(h, ";typed", 6) == 0) {
2277 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
2278 appctx->ctx.stats.flags |= STAT_FMT_TYPED;
2279 break;
2280 }
2281 }
2282
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2283 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
2284 if (memcmp(h, ";st=", 4) == 0) {
2285 int i;
2286 h += 4;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2287 appctx->ctx.stats.st_code = STAT_STATUS_UNKN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2288 for (i = STAT_STATUS_INIT + 1; i < STAT_STATUS_SIZE; i++) {
2289 if (strncmp(stat_status_codes[i], h, 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2290 appctx->ctx.stats.st_code = i;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2291 break;
2292 }
2293 }
2294 break;
2295 }
2296 }
2297
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2298 appctx->ctx.stats.scope_str = 0;
2299 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2300 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
2301 if (memcmp(h, STAT_SCOPE_INPUT_NAME "=", strlen(STAT_SCOPE_INPUT_NAME) + 1) == 0) {
2302 int itx = 0;
2303 const char *h2;
2304 char scope_txt[STAT_SCOPE_TXT_MAXLEN + 1];
2305 const char *err;
2306
2307 h += strlen(STAT_SCOPE_INPUT_NAME) + 1;
2308 h2 = h;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2309 appctx->ctx.stats.scope_str = h2 - msg->chn->buf->p;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2310 while (*h != ';' && *h != '\0' && *h != '&' && *h != ' ' && *h != '\n') {
2311 itx++;
2312 h++;
2313 }
2314
2315 if (itx > STAT_SCOPE_TXT_MAXLEN)
2316 itx = STAT_SCOPE_TXT_MAXLEN;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2317 appctx->ctx.stats.scope_len = itx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2318
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2319 /* 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]2320 memcpy(scope_txt, h2, itx);
2321 scope_txt[itx] = '\0';
2322 err = invalid_char(scope_txt);
2323 if (err) {
2324 /* bad char in search text => clear scope */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2325 appctx->ctx.stats.scope_str = 0;
2326 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2327 }
2328 break;
2329 }
2330 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2331
2332 /* now check whether we have some admin rules for this request */
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2333 list_for_each_entry(stats_admin_rule, &uri_auth->admin_rules, list) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2334 int ret = 1;
2335
2336 if (stats_admin_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2337 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]2338 ret = acl_pass(ret);
2339 if (stats_admin_rule->cond->pol == ACL_COND_UNLESS)
2340 ret = !ret;
2341 }
2342
2343 if (ret) {
2344 /* no rule, or the rule matches */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2345 appctx->ctx.stats.flags |= STAT_ADMIN;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2346 break;
2347 }
2348 }
2349
2350 /* Was the status page requested with a POST ? */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]2351 if (unlikely(txn->meth == HTTP_METH_POST && txn->req.body_len > 0)) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2352 if (appctx->ctx.stats.flags & STAT_ADMIN) {
Willy Tarreaucfe7fdd2014-04-26 22:08:32 +0200[diff] [blame]2353 /* we'll need the request body, possibly after sending 100-continue */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]2354 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE)
2355 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2356 appctx->st0 = STAT_HTTP_POST;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2357 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2358 else {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2359 appctx->ctx.stats.st_code = STAT_STATUS_DENY;
2360 appctx->st0 = STAT_HTTP_LAST;
de Lafond Guillaume88c278f2013-04-15 19:27:10 +0200[diff] [blame]2361 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2362 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2363 else {
2364 /* So it was another method (GET/HEAD) */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2365 appctx->st0 = STAT_HTTP_HEAD;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2366 }
2367
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2368 s->task->nice = -32; /* small boost for HTTP statistics */
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2369 return 1;
2370}
2371
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2372/* Sets the TOS header in IPv4 and the traffic class header in IPv6 packets
2373 * (as per RFC3260 #4 and BCP37 #4.2 and #5.2).
2374 */
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2375void inet_set_tos(int fd, const struct sockaddr_storage *from, int tos)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2376{
2377#ifdef IP_TOS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2378 if (from->ss_family == AF_INET)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2379 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
2380#endif
2381#ifdef IPV6_TCLASS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2382 if (from->ss_family == AF_INET6) {
2383 if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)from)->sin6_addr))
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2384 /* v4-mapped addresses need IP_TOS */
2385 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
2386 else
2387 setsockopt(fd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof(tos));
2388 }
2389#endif
2390}
2391
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2392int http_transform_header_str(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2393 const char* name, unsigned int name_len,
2394 const char *str, struct my_regex *re,
2395 int action)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2396{
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2397 struct hdr_ctx ctx;
2398 char *buf = msg->chn->buf->p;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2399 struct hdr_idx *idx = &s->txn->hdr_idx;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2400 int (*http_find_hdr_func)(const char *name, int len, char *sol,
2401 struct hdr_idx *idx, struct hdr_ctx *ctx);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2402 struct chunk *output = get_trash_chunk();
2403
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2404 ctx.idx = 0;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2405
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2406 /* Choose the header browsing function. */
2407 switch (action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2408 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2409 http_find_hdr_func = http_find_header2;
2410 break;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2411 case ACT_HTTP_REPLACE_HDR:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2412 http_find_hdr_func = http_find_full_header2;
2413 break;
2414 default: /* impossible */
2415 return -1;
2416 }
2417
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2418 while (http_find_hdr_func(name, name_len, buf, idx, &ctx)) {
2419 struct hdr_idx_elem *hdr = idx->v + ctx.idx;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2420 int delta;
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2421 char *val = ctx.line + ctx.val;
2422 char* val_end = val + ctx.vlen;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2423
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2424 if (!regex_exec_match2(re, val, val_end-val, MAX_MATCH, pmatch, 0))
2425 continue;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2426
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2427 output->len = exp_replace(output->str, output->size, val, str, pmatch);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2428 if (output->len == -1)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2429 return -1;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2430
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2431 delta = buffer_replace2(msg->chn->buf, val, val_end, output->str, output->len);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2432
2433 hdr->len += delta;
2434 http_msg_move_end(msg, delta);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2435
2436 /* Adjust the length of the current value of the index. */
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2437 ctx.vlen += delta;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2438 }
2439
2440 return 0;
2441}
2442
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2443static int http_transform_header(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2444 const char* name, unsigned int name_len,
2445 struct list *fmt, struct my_regex *re,
2446 int action)
2447{
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2448 struct chunk *replace;
2449 int ret = -1;
2450
2451 replace = alloc_trash_chunk();
2452 if (!replace)
2453 goto leave;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2454
2455 replace->len = build_logline(s, replace->str, replace->size, fmt);
2456 if (replace->len >= replace->size - 1)
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2457 goto leave;
2458
2459 ret = http_transform_header_str(s, msg, name, name_len, replace->str, re, action);
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2460
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2461 leave:
2462 free_trash_chunk(replace);
2463 return ret;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2464}
2465
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2466/* Executes the http-request rules <rules> for stream <s>, proxy <px> and
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2467 * transaction <txn>. Returns the verdict of the first rule that prevents
2468 * further processing of the request (auth, deny, ...), and defaults to
2469 * HTTP_RULE_RES_STOP if it executed all rules or stopped on an allow, or
2470 * 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]2471 * on txn->flags if it encounters a tarpit rule. If <deny_status> is not NULL
2472 * and a deny/tarpit rule is matched, it will be filled with this rule's deny
2473 * status.
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2474 */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2475enum rule_result
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2476http_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]2477{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2478 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2479 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]2480 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]2481 struct act_rule *rule;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]2482 struct hdr_ctx ctx;
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]2483 const char *auth_realm;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2484 int act_flags = 0;
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2485 int len;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2486
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2487 /* If "the current_rule_list" match the executed rule list, we are in
2488 * resume condition. If a resume is needed it is always in the action
2489 * and never in the ACL or converters. In this case, we initialise the
2490 * current rule, and go to the action execution point.
2491 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2492 if (s->current_rule) {
2493 rule = s->current_rule;
2494 s->current_rule = NULL;
2495 if (s->current_rule_list == rules)
2496 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2497 }
2498 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2499
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2500 list_for_each_entry(rule, rules, list) {
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2501
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2502 /* check optional condition */
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2503 if (rule->cond) {
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2504 int ret;
2505
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2506 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]2507 ret = acl_pass(ret);
2508
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2509 if (rule->cond->pol == ACL_COND_UNLESS)
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2510 ret = !ret;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2511
2512 if (!ret) /* condition not matched */
2513 continue;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2514 }
2515
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2516 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2517resume_execution:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2518 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2519 case ACT_ACTION_ALLOW:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2520 return HTTP_RULE_RES_STOP;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2521
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2522 case ACT_ACTION_DENY:
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2523 if (deny_status)
2524 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2525 return HTTP_RULE_RES_DENY;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2526
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2527 case ACT_HTTP_REQ_TARPIT:
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]2528 txn->flags |= TX_CLTARPIT;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2529 if (deny_status)
2530 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2531 return HTTP_RULE_RES_DENY;
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]2532
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2533 case ACT_HTTP_REQ_AUTH:
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]2534 /* Auth might be performed on regular http-req rules as well as on stats */
2535 auth_realm = rule->arg.auth.realm;
2536 if (!auth_realm) {
2537 if (px->uri_auth && rules == &px->uri_auth->http_req_rules)
2538 auth_realm = STATS_DEFAULT_REALM;
2539 else
2540 auth_realm = px->id;
2541 }
2542 /* send 401/407 depending on whether we use a proxy or not. We still
2543 * count one error, because normal browsing won't significantly
2544 * increase the counter but brute force attempts will.
2545 */
2546 chunk_printf(&trash, (txn->flags & TX_USE_PX_CONN) ? HTTP_407_fmt : HTTP_401_fmt, auth_realm);
2547 txn->status = (txn->flags & TX_USE_PX_CONN) ? 407 : 401;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2548 http_reply_and_close(s, txn->status, &trash);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2549 stream_inc_http_err_ctr(s);
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2550 return HTTP_RULE_RES_ABRT;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2551
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2552 case ACT_HTTP_REDIR:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2553 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
2554 return HTTP_RULE_RES_BADREQ;
2555 return HTTP_RULE_RES_DONE;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]2556
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2557 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]2558 s->task->nice = rule->arg.nice;
2559 break;
2560
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2561 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2562 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2563 inet_set_tos(cli_conn->handle.fd, &cli_conn->addr.from, rule->arg.tos);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]2564 break;
2565
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2566 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2567#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2568 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2569 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]2570#endif
2571 break;
2572
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2573 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]2574 s->logs.level = rule->arg.loglevel;
2575 break;
2576
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2577 case ACT_HTTP_REPLACE_HDR:
2578 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2579 if (http_transform_header(s, &txn->req, rule->arg.hdr_add.name,
2580 rule->arg.hdr_add.name_len,
2581 &rule->arg.hdr_add.fmt,
2582 &rule->arg.hdr_add.re, rule->action))
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2583 return HTTP_RULE_RES_BADREQ;
2584 break;
2585
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2586 case ACT_HTTP_DEL_HDR:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2587 ctx.idx = 0;
2588 /* remove all occurrences of the header */
2589 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2590 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
2591 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]2592 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2593 break;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2594
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2595 case ACT_HTTP_SET_HDR:
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2596 case ACT_HTTP_ADD_HDR: {
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2597 /* The scope of the trash buffer must be limited to this function. The
2598 * build_logline() function can execute a lot of other function which
2599 * can use the trash buffer. So for limiting the scope of this global
2600 * buffer, we build first the header value using build_logline, and
2601 * after we store the header name.
2602 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2603 struct chunk *replace;
2604
2605 replace = alloc_trash_chunk();
2606 if (!replace)
2607 return HTTP_RULE_RES_BADREQ;
2608
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2609 len = rule->arg.hdr_add.name_len + 2,
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2610 len += build_logline(s, replace->str + len, replace->size - len, &rule->arg.hdr_add.fmt);
2611 memcpy(replace->str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
2612 replace->str[rule->arg.hdr_add.name_len] = ':';
2613 replace->str[rule->arg.hdr_add.name_len + 1] = ' ';
2614 replace->len = len;
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2615
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2616 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2617 /* remove all occurrences of the header */
2618 ctx.idx = 0;
2619 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2620 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
2621 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
2622 }
2623 }
2624
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2625 http_header_add_tail2(&txn->req, &txn->hdr_idx, replace->str, replace->len);
2626
2627 free_trash_chunk(replace);
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2628 break;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2629 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2630
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2631 case ACT_HTTP_DEL_ACL:
2632 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2633 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2634 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2635
2636 /* collect reference */
2637 ref = pat_ref_lookup(rule->arg.map.ref);
2638 if (!ref)
2639 continue;
2640
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2641 /* allocate key */
2642 key = alloc_trash_chunk();
2643 if (!key)
2644 return HTTP_RULE_RES_BADREQ;
2645
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2646 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2647 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2648 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2649
2650 /* perform update */
2651 /* returned code: 1=ok, 0=ko */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2652 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2653 pat_ref_delete(ref, key->str);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2654 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2655
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2656 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2657 break;
2658 }
2659
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2660 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2661 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2662 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2663
2664 /* collect reference */
2665 ref = pat_ref_lookup(rule->arg.map.ref);
2666 if (!ref)
2667 continue;
2668
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2669 /* allocate key */
2670 key = alloc_trash_chunk();
2671 if (!key)
2672 return HTTP_RULE_RES_BADREQ;
2673
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2674 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2675 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2676 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2677
2678 /* perform update */
2679 /* add entry only if it does not already exist */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2680 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2681 if (pat_ref_find_elt(ref, key->str) == NULL)
2682 pat_ref_add(ref, key->str, NULL, NULL);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2683 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2684
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2685 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2686 break;
2687 }
2688
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2689 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2690 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2691 struct chunk *key, *value;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2692
2693 /* collect reference */
2694 ref = pat_ref_lookup(rule->arg.map.ref);
2695 if (!ref)
2696 continue;
2697
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2698 /* allocate key */
2699 key = alloc_trash_chunk();
2700 if (!key)
2701 return HTTP_RULE_RES_BADREQ;
2702
2703 /* allocate value */
2704 value = alloc_trash_chunk();
2705 if (!value) {
2706 free_trash_chunk(key);
2707 return HTTP_RULE_RES_BADREQ;
2708 }
2709
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2710 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2711 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2712 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2713
2714 /* collect value */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2715 value->len = build_logline(s, value->str, value->size, &rule->arg.map.value);
2716 value->str[value->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2717
2718 /* perform update */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2719 if (pat_ref_find_elt(ref, key->str) != NULL)
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2720 /* update entry if it exists */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2721 pat_ref_set(ref, key->str, value->str, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2722 else
2723 /* insert a new entry */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2724 pat_ref_add(ref, key->str, value->str, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2725
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2726 free_trash_chunk(key);
2727 free_trash_chunk(value);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2728 break;
2729 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]2730
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]2731 case ACT_CUSTOM:
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]2732 if ((s->req.flags & CF_READ_ERROR) ||
2733 ((s->req.flags & (CF_SHUTR|CF_READ_NULL)) &&
2734 !(s->si[0].flags & SI_FL_CLEAN_ABRT) &&
2735 (px->options & PR_O_ABRT_CLOSE)))
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2736 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]2737
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2738 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]2739 case ACT_RET_ERR:
2740 case ACT_RET_CONT:
2741 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]2742 case ACT_RET_STOP:
2743 return HTTP_RULE_RES_DONE;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]2744 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2745 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2746 return HTTP_RULE_RES_YIELD;
2747 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]2748 break;
2749
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2750 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2751 /* Note: only the first valid tracking parameter of each
2752 * applies.
2753 */
2754
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2755 if (stkctr_entry(&s->stkctr[trk_idx(rule->action)]) == NULL) {
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2756 struct stktable *t;
2757 struct stksess *ts;
2758 struct stktable_key *key;
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]2759 void *ptr1, *ptr2;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2760
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]2761 t = rule->arg.trk_ctr.table.t;
2762 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]2763
2764 if (key && (ts = stktable_get_entry(t, key))) {
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2765 stream_track_stkctr(&s->stkctr[trk_idx(rule->action)], t, ts);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2766
2767 /* 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]2768 ptr1 = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
2769 ptr2 = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
2770 if (ptr1 || ptr2) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2771 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2772
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]2773 if (ptr1)
2774 stktable_data_cast(ptr1, http_req_cnt)++;
2775
2776 if (ptr2)
2777 update_freq_ctr_period(&stktable_data_cast(ptr2, http_req_rate),
2778 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
2779
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2780 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun0fed0b02017-11-29 16:15:07 +0100[diff] [blame]2781
2782 /* If data was modified, we need to touch to re-schedule sync */
2783 stktable_touch_local(t, ts, 0);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]2784 }
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2785
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2786 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2787 if (sess->fe != s->be)
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2788 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2789 }
2790 }
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]2791 break;
2792
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]2793 /* other flags exists, but normaly, they never be matched. */
2794 default:
2795 break;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2796 }
2797 }
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2798
2799 /* we reached the end of the rules, nothing to report */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2800 return HTTP_RULE_RES_CONT;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2801}
2802
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]2803
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]2804/* Executes the http-response rules <rules> for stream <s> and proxy <px>. It
2805 * returns one of 5 possible statuses: HTTP_RULE_RES_CONT, HTTP_RULE_RES_STOP,
2806 * HTTP_RULE_RES_DONE, HTTP_RULE_RES_YIELD, or HTTP_RULE_RES_BADREQ. If *CONT
2807 * is returned, the process can continue the evaluation of next rule list. If
2808 * *STOP or *DONE is returned, the process must stop the evaluation. If *BADREQ
2809 * is returned, it means the operation could not be processed and a server error
2810 * must be returned. It may set the TX_SVDENY on txn->flags if it encounters a
2811 * deny rule. If *YIELD is returned, the caller must call again the function
2812 * with the same context.
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2813 */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2814static enum rule_result
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2815http_res_get_intercept_rule(struct proxy *px, struct list *rules, struct stream *s)
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2816{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2817 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2818 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]2819 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]2820 struct act_rule *rule;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2821 struct hdr_ctx ctx;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2822 int act_flags = 0;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2823
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2824 /* If "the current_rule_list" match the executed rule list, we are in
2825 * resume condition. If a resume is needed it is always in the action
2826 * and never in the ACL or converters. In this case, we initialise the
2827 * current rule, and go to the action execution point.
2828 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2829 if (s->current_rule) {
2830 rule = s->current_rule;
2831 s->current_rule = NULL;
2832 if (s->current_rule_list == rules)
2833 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2834 }
2835 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2836
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2837 list_for_each_entry(rule, rules, list) {
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2838
2839 /* check optional condition */
2840 if (rule->cond) {
2841 int ret;
2842
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2843 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]2844 ret = acl_pass(ret);
2845
2846 if (rule->cond->pol == ACL_COND_UNLESS)
2847 ret = !ret;
2848
2849 if (!ret) /* condition not matched */
2850 continue;
2851 }
2852
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2853 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2854resume_execution:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2855 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2856 case ACT_ACTION_ALLOW:
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2857 return HTTP_RULE_RES_STOP; /* "allow" rules are OK */
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2858
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2859 case ACT_ACTION_DENY:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2860 txn->flags |= TX_SVDENY;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2861 return HTTP_RULE_RES_STOP;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2862
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2863 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]2864 s->task->nice = rule->arg.nice;
2865 break;
2866
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2867 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2868 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2869 inet_set_tos(cli_conn->handle.fd, &cli_conn->addr.from, rule->arg.tos);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]2870 break;
2871
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2872 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2873#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2874 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2875 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]2876#endif
2877 break;
2878
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2879 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]2880 s->logs.level = rule->arg.loglevel;
2881 break;
2882
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2883 case ACT_HTTP_REPLACE_HDR:
2884 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2885 if (http_transform_header(s, &txn->rsp, rule->arg.hdr_add.name,
2886 rule->arg.hdr_add.name_len,
2887 &rule->arg.hdr_add.fmt,
2888 &rule->arg.hdr_add.re, rule->action))
Christopher Fauletcdade942017-02-08 12:41:31 +0100[diff] [blame]2889 return HTTP_RULE_RES_BADREQ;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2890 break;
2891
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2892 case ACT_HTTP_DEL_HDR:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2893 ctx.idx = 0;
2894 /* remove all occurrences of the header */
2895 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2896 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
2897 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
2898 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2899 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2900
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2901 case ACT_HTTP_SET_HDR:
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2902 case ACT_HTTP_ADD_HDR: {
2903 struct chunk *replace;
2904
2905 replace = alloc_trash_chunk();
2906 if (!replace)
2907 return HTTP_RULE_RES_BADREQ;
2908
2909 chunk_printf(replace, "%s: ", rule->arg.hdr_add.name);
2910 memcpy(replace->str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
2911 replace->len = rule->arg.hdr_add.name_len;
2912 replace->str[replace->len++] = ':';
2913 replace->str[replace->len++] = ' ';
2914 replace->len += build_logline(s, replace->str + replace->len, replace->size - replace->len,
2915 &rule->arg.hdr_add.fmt);
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2916
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2917 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2918 /* remove all occurrences of the header */
2919 ctx.idx = 0;
2920 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2921 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
2922 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
2923 }
2924 }
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2925 http_header_add_tail2(&txn->rsp, &txn->hdr_idx, replace->str, replace->len);
2926
2927 free_trash_chunk(replace);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2928 break;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2929 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2930
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2931 case ACT_HTTP_DEL_ACL:
2932 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2933 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2934 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2935
2936 /* collect reference */
2937 ref = pat_ref_lookup(rule->arg.map.ref);
2938 if (!ref)
2939 continue;
2940
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2941 /* allocate key */
2942 key = alloc_trash_chunk();
2943 if (!key)
2944 return HTTP_RULE_RES_BADREQ;
2945
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2946 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2947 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2948 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2949
2950 /* perform update */
2951 /* returned code: 1=ok, 0=ko */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2952 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2953 pat_ref_delete(ref, key->str);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2954 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2955
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2956 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2957 break;
2958 }
2959
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2960 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2961 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2962 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2963
2964 /* collect reference */
2965 ref = pat_ref_lookup(rule->arg.map.ref);
2966 if (!ref)
2967 continue;
2968
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2969 /* allocate key */
2970 key = alloc_trash_chunk();
2971 if (!key)
2972 return HTTP_RULE_RES_BADREQ;
2973
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2974 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2975 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2976 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2977
2978 /* perform update */
2979 /* check if the entry already exists */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2980 if (pat_ref_find_elt(ref, key->str) == NULL)
2981 pat_ref_add(ref, key->str, NULL, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2982
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2983 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2984 break;
2985 }
2986
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2987 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2988 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2989 struct chunk *key, *value;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2990
2991 /* collect reference */
2992 ref = pat_ref_lookup(rule->arg.map.ref);
2993 if (!ref)
2994 continue;
2995
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2996 /* allocate key */
2997 key = alloc_trash_chunk();
2998 if (!key)
2999 return HTTP_RULE_RES_BADREQ;
3000
3001 /* allocate value */
3002 value = alloc_trash_chunk();
3003 if (!value) {
3004 free_trash_chunk(key);
3005 return HTTP_RULE_RES_BADREQ;
3006 }
3007
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3008 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3009 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
3010 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3011
3012 /* collect value */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3013 value->len = build_logline(s, value->str, value->size, &rule->arg.map.value);
3014 value->str[value->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3015
3016 /* perform update */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3017 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3018 if (pat_ref_find_elt(ref, key->str) != NULL)
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3019 /* update entry if it exists */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3020 pat_ref_set(ref, key->str, value->str, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3021 else
3022 /* insert a new entry */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3023 pat_ref_add(ref, key->str, value->str, NULL);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3024 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3025 free_trash_chunk(key);
3026 free_trash_chunk(value);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3027 break;
3028 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3029
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3030 case ACT_HTTP_REDIR:
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3031 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
3032 return HTTP_RULE_RES_BADREQ;
3033 return HTTP_RULE_RES_DONE;
3034
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3035 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
3036 /* Note: only the first valid tracking parameter of each
3037 * applies.
3038 */
3039
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]3040 if (stkctr_entry(&s->stkctr[trk_idx(rule->action)]) == NULL) {
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3041 struct stktable *t;
3042 struct stksess *ts;
3043 struct stktable_key *key;
3044 void *ptr;
3045
3046 t = rule->arg.trk_ctr.table.t;
3047 key = stktable_fetch_key(t, s->be, sess, s, SMP_OPT_DIR_RES | SMP_OPT_FINAL, rule->arg.trk_ctr.expr, NULL);
3048
3049 if (key && (ts = stktable_get_entry(t, key))) {
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]3050 stream_track_stkctr(&s->stkctr[trk_idx(rule->action)], t, ts);
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3051
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3052 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3053
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3054 /* let's count a new HTTP request as it's the first time we do it */
3055 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
3056 if (ptr)
3057 stktable_data_cast(ptr, http_req_cnt)++;
3058
3059 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
3060 if (ptr)
3061 update_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
3062 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
3063
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3064 /* When the client triggers a 4xx from the server, it's most often due
3065 * to a missing object or permission. These events should be tracked
3066 * because if they happen often, it may indicate a brute force or a
3067 * vulnerability scan. Normally this is done when receiving the response
3068 * but here we're tracking after this ought to have been done so we have
3069 * to do it on purpose.
3070 */
Willy Tarreau3146a4c2016-07-26 15:22:33 +0200[diff] [blame]3071 if ((unsigned)(txn->status - 400) < 100) {
3072 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_ERR_CNT);
3073 if (ptr)
3074 stktable_data_cast(ptr, http_err_cnt)++;
3075
3076 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_ERR_RATE);
3077 if (ptr)
3078 update_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
3079 t->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u, 1);
3080 }
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3081
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3082 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3083
Emeric Brun0fed0b02017-11-29 16:15:07 +0100[diff] [blame]3084 /* If data was modified, we need to touch to re-schedule sync */
3085 stktable_touch_local(t, ts, 0);
3086
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3087 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
3088 if (sess->fe != s->be)
3089 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
3090
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3091 }
3092 }
3093 break;
3094
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3095 case ACT_CUSTOM:
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]3096 if ((s->req.flags & CF_READ_ERROR) ||
3097 ((s->req.flags & (CF_SHUTR|CF_READ_NULL)) &&
3098 !(s->si[0].flags & SI_FL_CLEAN_ABRT) &&
3099 (px->options & PR_O_ABRT_CLOSE)))
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3100 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]3101
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3102 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3103 case ACT_RET_ERR:
3104 case ACT_RET_CONT:
3105 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3106 case ACT_RET_STOP:
3107 return HTTP_RULE_RES_STOP;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3108 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3109 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3110 return HTTP_RULE_RES_YIELD;
3111 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3112 break;
3113
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]3114 /* other flags exists, but normaly, they never be matched. */
3115 default:
3116 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3117 }
3118 }
3119
3120 /* we reached the end of the rules, nothing to report */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3121 return HTTP_RULE_RES_CONT;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3122}
3123
3124
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3125/* Perform an HTTP redirect based on the information in <rule>. The function
3126 * returns non-zero on success, or zero in case of a, irrecoverable error such
3127 * as too large a request to build a valid response.
3128 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3129static 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]3130{
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3131 struct http_msg *req = &txn->req;
3132 struct http_msg *res = &txn->rsp;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3133 const char *msg_fmt;
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3134 struct chunk *chunk;
3135 int ret = 0;
3136
3137 chunk = alloc_trash_chunk();
3138 if (!chunk)
3139 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3140
3141 /* build redirect message */
3142 switch(rule->code) {
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]3143 case 308:
3144 msg_fmt = HTTP_308;
3145 break;
3146 case 307:
3147 msg_fmt = HTTP_307;
3148 break;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3149 case 303:
3150 msg_fmt = HTTP_303;
3151 break;
3152 case 301:
3153 msg_fmt = HTTP_301;
3154 break;
3155 case 302:
3156 default:
3157 msg_fmt = HTTP_302;
3158 break;
3159 }
3160
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3161 if (unlikely(!chunk_strcpy(chunk, msg_fmt)))
3162 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3163
3164 switch(rule->type) {
3165 case REDIRECT_TYPE_SCHEME: {
3166 const char *path;
3167 const char *host;
3168 struct hdr_ctx ctx;
3169 int pathlen;
3170 int hostlen;
3171
3172 host = "";
3173 hostlen = 0;
3174 ctx.idx = 0;
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3175 if (http_find_header2("Host", 4, req->chn->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3176 host = ctx.line + ctx.val;
3177 hostlen = ctx.vlen;
3178 }
3179
3180 path = http_get_path(txn);
3181 /* build message using path */
3182 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3183 pathlen = req->sl.rq.u_l + (req->chn->buf->p + req->sl.rq.u) - path;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3184 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3185 int qs = 0;
3186 while (qs < pathlen) {
3187 if (path[qs] == '?') {
3188 pathlen = qs;
3189 break;
3190 }
3191 qs++;
3192 }
3193 }
3194 } else {
3195 path = "/";
3196 pathlen = 1;
3197 }
3198
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3199 if (rule->rdr_str) { /* this is an old "redirect" rule */
3200 /* check if we can add scheme + "://" + host + path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3201 if (chunk->len + rule->rdr_len + 3 + hostlen + pathlen > chunk->size - 4)
3202 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3203
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3204 /* add scheme */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3205 memcpy(chunk->str + chunk->len, rule->rdr_str, rule->rdr_len);
3206 chunk->len += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3207 }
3208 else {
3209 /* add scheme with executing log format */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3210 chunk->len += build_logline(s, chunk->str + chunk->len, chunk->size - chunk->len, &rule->rdr_fmt);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3211
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3212 /* check if we can add scheme + "://" + host + path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3213 if (chunk->len + 3 + hostlen + pathlen > chunk->size - 4)
3214 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3215 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3216 /* add "://" */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3217 memcpy(chunk->str + chunk->len, "://", 3);
3218 chunk->len += 3;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3219
3220 /* add host */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3221 memcpy(chunk->str + chunk->len, host, hostlen);
3222 chunk->len += hostlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3223
3224 /* add path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3225 memcpy(chunk->str + chunk->len, path, pathlen);
3226 chunk->len += pathlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3227
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3228 /* append a slash at the end of the location if needed and missing */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3229 if (chunk->len && chunk->str[chunk->len - 1] != '/' &&
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3230 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3231 if (chunk->len > chunk->size - 5)
3232 goto leave;
3233 chunk->str[chunk->len] = '/';
3234 chunk->len++;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3235 }
3236
3237 break;
3238 }
3239 case REDIRECT_TYPE_PREFIX: {
3240 const char *path;
3241 int pathlen;
3242
3243 path = http_get_path(txn);
3244 /* build message using path */
3245 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3246 pathlen = req->sl.rq.u_l + (req->chn->buf->p + req->sl.rq.u) - path;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3247 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3248 int qs = 0;
3249 while (qs < pathlen) {
3250 if (path[qs] == '?') {
3251 pathlen = qs;
3252 break;
3253 }
3254 qs++;
3255 }
3256 }
3257 } else {
3258 path = "/";
3259 pathlen = 1;
3260 }
3261
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3262 if (rule->rdr_str) { /* this is an old "redirect" rule */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3263 if (chunk->len + rule->rdr_len + pathlen > chunk->size - 4)
3264 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3265
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3266 /* add prefix. Note that if prefix == "/", we don't want to
3267 * add anything, otherwise it makes it hard for the user to
3268 * configure a self-redirection.
3269 */
3270 if (rule->rdr_len != 1 || *rule->rdr_str != '/') {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3271 memcpy(chunk->str + chunk->len, rule->rdr_str, rule->rdr_len);
3272 chunk->len += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3273 }
3274 }
3275 else {
3276 /* add prefix with executing log format */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3277 chunk->len += build_logline(s, chunk->str + chunk->len, chunk->size - chunk->len, &rule->rdr_fmt);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3278
3279 /* Check length */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3280 if (chunk->len + pathlen > chunk->size - 4)
3281 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3282 }
3283
3284 /* add path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3285 memcpy(chunk->str + chunk->len, path, pathlen);
3286 chunk->len += pathlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3287
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3288 /* append a slash at the end of the location if needed and missing */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3289 if (chunk->len && chunk->str[chunk->len - 1] != '/' &&
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3290 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3291 if (chunk->len > chunk->size - 5)
3292 goto leave;
3293 chunk->str[chunk->len] = '/';
3294 chunk->len++;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3295 }
3296
3297 break;
3298 }
3299 case REDIRECT_TYPE_LOCATION:
3300 default:
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3301 if (rule->rdr_str) { /* this is an old "redirect" rule */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3302 if (chunk->len + rule->rdr_len > chunk->size - 4)
3303 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3304
3305 /* add location */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3306 memcpy(chunk->str + chunk->len, rule->rdr_str, rule->rdr_len);
3307 chunk->len += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3308 }
3309 else {
3310 /* add location with executing log format */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3311 chunk->len += build_logline(s, chunk->str + chunk->len, chunk->size - chunk->len, &rule->rdr_fmt);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3312
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3313 /* Check left length */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3314 if (chunk->len > chunk->size - 4)
3315 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3316 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3317 break;
3318 }
3319
3320 if (rule->cookie_len) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3321 memcpy(chunk->str + chunk->len, "\r\nSet-Cookie: ", 14);
3322 chunk->len += 14;
3323 memcpy(chunk->str + chunk->len, rule->cookie_str, rule->cookie_len);
3324 chunk->len += rule->cookie_len;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3325 }
3326
Willy Tarreau19b14122017-02-28 09:48:11 +0100[diff] [blame]3327 /* add end of headers and the keep-alive/close status. */
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3328 txn->status = rule->code;
3329 /* let's log the request time */
3330 s->logs.tv_request = now;
3331
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3332 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]3333 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
3334 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
3335 /* keep-alive possible */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3336 if (!(req->flags & HTTP_MSGF_VER_11)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3337 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3338 memcpy(chunk->str + chunk->len, "\r\nProxy-Connection: keep-alive", 30);
3339 chunk->len += 30;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3340 } else {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3341 memcpy(chunk->str + chunk->len, "\r\nConnection: keep-alive", 24);
3342 chunk->len += 24;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3343 }
3344 }
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3345 memcpy(chunk->str + chunk->len, "\r\n\r\n", 4);
3346 chunk->len += 4;
3347 FLT_STRM_CB(s, flt_http_reply(s, txn->status, chunk));
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]3348 co_inject(res->chn, chunk->str, chunk->len);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3349 /* "eat" the request */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3350 bi_fast_delete(req->chn->buf, req->sov);
3351 req->next -= req->sov;
3352 req->sov = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3353 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]3354 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]3355 req->msg_state = HTTP_MSG_CLOSED;
3356 res->msg_state = HTTP_MSG_DONE;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3357 /* Trim any possible response */
3358 res->chn->buf->i = 0;
3359 res->next = res->sov = 0;
Christopher Faulet5d468ca2017-09-11 09:27:29 +0200[diff] [blame]3360 /* let the server side turn to SI_ST_CLO */
3361 channel_shutw_now(req->chn);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3362 } else {
3363 /* keep-alive not possible */
3364 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3365 memcpy(chunk->str + chunk->len, "\r\nProxy-Connection: close\r\n\r\n", 29);
3366 chunk->len += 29;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3367 } else {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3368 memcpy(chunk->str + chunk->len, "\r\nConnection: close\r\n\r\n", 23);
3369 chunk->len += 23;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3370 }
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3371 http_reply_and_close(s, txn->status, chunk);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3372 req->chn->analysers &= AN_REQ_FLT_END;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3373 }
3374
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3375 if (!(s->flags & SF_ERR_MASK))
3376 s->flags |= SF_ERR_LOCAL;
3377 if (!(s->flags & SF_FINST_MASK))
3378 s->flags |= SF_FINST_R;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3379
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3380 ret = 1;
3381 leave:
3382 free_trash_chunk(chunk);
3383 return ret;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3384}
3385
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3386/* This stream analyser runs all HTTP request processing which is common to
3387 * frontends and backends, which means blocking ACLs, filters, connection-close,
3388 * reqadd, stats and redirects. This is performed for the designated proxy.
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3389 * 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]3390 * either needs more data or wants to immediately abort the request (eg: deny,
3391 * error, ...).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3392 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3393int 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]3394{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3395 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3396 struct http_txn *txn = s->txn;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3397 struct http_msg *msg = &txn->req;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3398 struct redirect_rule *rule;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100[diff] [blame]3399 struct cond_wordlist *wl;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3400 enum rule_result verdict;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3401 int deny_status = HTTP_ERR_403;
Olivier Houchardc2aae742017-09-22 18:26:28 +0200[diff] [blame]3402 struct connection *conn = objt_conn(sess->origin);
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3403
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]3404 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3405 /* we need more data */
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3406 goto return_prx_yield;
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3407 }
3408
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3409 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3410 now_ms, __FUNCTION__,
3411 s,
3412 req,
3413 req->rex, req->wex,
3414 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3415 req->buf->i,
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3416 req->analysers);
3417
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]3418 /* just in case we have some per-backend tracking */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3419 stream_inc_be_http_req_ctr(s);
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]3420
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3421 /* evaluate http-request rules */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3422 if (!LIST_ISEMPTY(&px->http_req_rules)) {
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3423 verdict = http_req_get_intercept_rule(px, &px->http_req_rules, s, &deny_status);
Willy Tarreau51425942010-02-01 10:40:19 +0100[diff] [blame]3424
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3425 switch (verdict) {
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3426 case HTTP_RULE_RES_YIELD: /* some data miss, call the function later. */
3427 goto return_prx_yield;
3428
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3429 case HTTP_RULE_RES_CONT:
3430 case HTTP_RULE_RES_STOP: /* nothing to do */
3431 break;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3432
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3433 case HTTP_RULE_RES_DENY: /* deny or tarpit */
3434 if (txn->flags & TX_CLTARPIT)
3435 goto tarpit;
3436 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3437
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3438 case HTTP_RULE_RES_ABRT: /* abort request, response already sent. Eg: auth */
3439 goto return_prx_cond;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3440
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3441 case HTTP_RULE_RES_DONE: /* OK, but terminate request processing (eg: redirect) */
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3442 goto done;
3443
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3444 case HTTP_RULE_RES_BADREQ: /* failed with a bad request */
3445 goto return_bad_req;
3446 }
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3447 }
3448
Olivier Houchard25ae45a2017-11-29 19:51:19 +0100[diff] [blame]3449 if (conn && (conn->flags & CO_FL_EARLY_DATA) &&
3450 (conn->flags & (CO_FL_EARLY_SSL_HS | CO_FL_HANDSHAKE))) {
Olivier Houchardc2aae742017-09-22 18:26:28 +0200[diff] [blame]3451 struct hdr_ctx ctx;
3452
3453 ctx.idx = 0;
3454 if (!http_find_header2("Early-Data", strlen("Early-Data"),
3455 s->req.buf->p, &txn->hdr_idx, &ctx)) {
3456 if (unlikely(http_header_add_tail2(&txn->req,
3457 &txn->hdr_idx, "Early-Data: 1",
3458 strlen("Early-Data: 1"))) < 0) {
3459 goto return_bad_req;
3460 }
3461 }
3462
3463 }
3464
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3465 /* OK at this stage, we know that the request was accepted according to
3466 * the http-request rules, we can check for the stats. Note that the
3467 * URI is detected *before* the req* rules in order not to be affected
3468 * by a possible reqrep, while they are processed *after* so that a
3469 * reqdeny can still block them. This clearly needs to change in 1.6!
3470 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]3471 if (stats_check_uri(&s->si[1], txn, px)) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3472 s->target = &http_stats_applet.obj_type;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]3473 if (unlikely(!stream_int_register_handler(&s->si[1], objt_applet(s->target)))) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3474 txn->status = 500;
3475 s->logs.tv_request = now;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3476 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3477
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3478 if (!(s->flags & SF_ERR_MASK))
3479 s->flags |= SF_ERR_RESOURCE;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3480 goto return_prx_cond;
3481 }
3482
3483 /* parse the whole stats request and extract the relevant information */
3484 http_handle_stats(s, req);
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3485 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]3486 /* not all actions implemented: deny, allow, auth */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3487
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3488 if (verdict == HTTP_RULE_RES_DENY) /* stats http-request deny */
3489 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3490
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3491 if (verdict == HTTP_RULE_RES_ABRT) /* stats auth / stats http-request auth */
3492 goto return_prx_cond;
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +0100[diff] [blame]3493 }
3494
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3495 /* evaluate the req* rules except reqadd */
3496 if (px->req_exp != NULL) {
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]3497 if (apply_filters_to_request(s, req, px) < 0)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3498 goto return_bad_req;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3499
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3500 if (txn->flags & TX_CLDENY)
3501 goto deny;
Willy Tarreauc465fd72009-08-31 00:17:18 +0200[diff] [blame]3502
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3503 if (txn->flags & TX_CLTARPIT) {
3504 deny_status = HTTP_ERR_500;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3505 goto tarpit;
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3506 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3507 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3508
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3509 /* add request headers from the rule sets in the same order */
3510 list_for_each_entry(wl, &px->req_add, list) {
3511 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3512 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]3513 ret = acl_pass(ret);
3514 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
3515 ret = !ret;
3516 if (!ret)
3517 continue;
3518 }
3519
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]3520 if (unlikely(http_header_add_tail(&txn->req, &txn->hdr_idx, wl->s) < 0))
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3521 goto return_bad_req;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]3522 }
3523
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3524
3525 /* Proceed with the stats now. */
William Lallemand71bd11a2017-11-20 19:13:14 +0100[diff] [blame]3526 if (unlikely(objt_applet(s->target) == &http_stats_applet) ||
3527 unlikely(objt_applet(s->target) == &http_cache_applet)) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3528 /* process the stats request now */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3529 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]3530 HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3531
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3532 if (!(s->flags & SF_ERR_MASK)) // this is not really an error but it is
3533 s->flags |= SF_ERR_LOCAL; // to mark that it comes from the proxy
3534 if (!(s->flags & SF_FINST_MASK))
3535 s->flags |= SF_FINST_R;
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3536
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]3537 /* 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]3538 req->analysers &= (AN_REQ_HTTP_BODY | AN_REQ_FLT_HTTP_HDRS | AN_REQ_FLT_END);
3539 req->analysers &= ~AN_REQ_FLT_XFER_DATA;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]3540 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3541 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3542 }
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]3543
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3544 /* check whether we have some ACLs set to redirect this request */
3545 list_for_each_entry(rule, &px->redirect_rules, list) {
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]3546 if (rule->cond) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3547 int ret;
3548
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3549 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]3550 ret = acl_pass(ret);
3551 if (rule->cond->pol == ACL_COND_UNLESS)
3552 ret = !ret;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3553 if (!ret)
3554 continue;
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]3555 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3556 if (!http_apply_redirect_rule(rule, s, txn))
3557 goto return_bad_req;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3558 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3559 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]3560
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]3561 /* POST requests may be accompanied with an "Expect: 100-Continue" header.
3562 * If this happens, then the data will not come immediately, so we must
3563 * send all what we have without waiting. Note that due to the small gain
3564 * 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]3565 * 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]3566 * itself once used.
3567 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]3568 req->flags |= CF_SEND_DONTWAIT;
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]3569
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3570 done: /* done with this analyser, continue with next ones that the calling
3571 * points will have set, if any.
3572 */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3573 req->analyse_exp = TICK_ETERNITY;
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]3574 done_without_exp: /* done with this analyser, but dont reset the analyse_exp. */
3575 req->analysers &= ~an_bit;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3576 return 1;
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]3577
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3578 tarpit:
Willy Tarreau6a0bca92017-06-11 17:56:27 +0200[diff] [blame]3579 /* Allow cookie logging
3580 */
3581 if (s->be->cookie_name || sess->fe->capture_name)
3582 manage_client_side_cookies(s, req);
3583
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3584 /* When a connection is tarpitted, we use the tarpit timeout,
3585 * which may be the same as the connect timeout if unspecified.
3586 * If unset, then set it to zero because we really want it to
3587 * eventually expire. We build the tarpit as an analyser.
3588 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]3589 channel_erase(&s->req);
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3590
3591 /* wipe the request out so that we can drop the connection early
3592 * if the client closes first.
3593 */
3594 channel_dont_connect(req);
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3595
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3596 txn->status = http_err_codes[deny_status];
3597
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3598 req->analysers &= AN_REQ_FLT_END; /* remove switching rules etc... */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3599 req->analysers |= AN_REQ_HTTP_TARPIT;
3600 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.tarpit);
3601 if (!req->analyse_exp)
3602 req->analyse_exp = tick_add(now_ms, 0);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3603 stream_inc_http_err_ctr(s);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3604 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3605 if (sess->fe != s->be)
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3606 HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3607 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3608 HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1);
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]3609 goto done_without_exp;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3610
3611 deny: /* this request was blocked (denied) */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3612
3613 /* Allow cookie logging
3614 */
3615 if (s->be->cookie_name || sess->fe->capture_name)
3616 manage_client_side_cookies(s, req);
3617
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3618 txn->flags |= TX_CLDENY;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3619 txn->status = http_err_codes[deny_status];
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3620 s->logs.tv_request = now;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3621 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3622 stream_inc_http_err_ctr(s);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3623 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3624 if (sess->fe != s->be)
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3625 HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3626 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3627 HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1);
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3628 goto return_prx_cond;
3629
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3630 return_bad_req:
3631 /* We centralize bad requests processing here */
3632 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
3633 /* we detected a parsing error. We want to archive this request
3634 * in the dedicated proxy area for later troubleshooting.
3635 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]3636 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]3637 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]3638
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3639 txn->req.err_state = txn->req.msg_state;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3640 txn->req.msg_state = HTTP_MSG_ERROR;
3641 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3642 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]3643
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3644 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3645 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3646 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreau6e4261e2007-09-18 18:36:05 +0200[diff] [blame]3647
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3648 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3649 if (!(s->flags & SF_ERR_MASK))
3650 s->flags |= SF_ERR_PRXCOND;
3651 if (!(s->flags & SF_FINST_MASK))
3652 s->flags |= SF_FINST_R;
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100[diff] [blame]3653
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3654 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3655 req->analyse_exp = TICK_ETERNITY;
3656 return 0;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3657
3658 return_prx_yield:
3659 channel_dont_connect(req);
3660 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3661}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3662
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3663/* This function performs all the processing enabled for the current request.
3664 * It returns 1 if the processing can continue on next analysers, or zero if it
3665 * needs more data, encounters an error, or wants to immediately abort the
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]3666 * request. It relies on buffers flags, and updates s->req.analysers.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3667 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3668int http_process_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3669{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3670 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3671 struct http_txn *txn = s->txn;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3672 struct http_msg *msg = &txn->req;
Willy Tarreauee335e62015-04-21 18:15:13 +0200[diff] [blame]3673 struct connection *cli_conn = objt_conn(strm_sess(s)->origin);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3674
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]3675 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3676 /* we need more data */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]3677 channel_dont_connect(req);
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3678 return 0;
3679 }
3680
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3681 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3682 now_ms, __FUNCTION__,
3683 s,
3684 req,
3685 req->rex, req->wex,
3686 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3687 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3688 req->analysers);
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3689
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3690 /*
3691 * Right now, we know that we have processed the entire headers
3692 * and that unwanted requests have been filtered out. We can do
3693 * whatever we want with the remaining request. Also, now we
3694 * may have separate values for ->fe, ->be.
3695 */
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3696
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3697 /*
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3698 * If HTTP PROXY is set we simply get remote server address parsing
3699 * incoming request. Note that this requires that a connection is
3700 * allocated on the server side.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3701 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3702 if ((s->be->options & PR_O_HTTP_PROXY) && !(s->flags & SF_ADDR_SET)) {
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3703 struct connection *conn;
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3704 char *path;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3705
Willy Tarreau9471b8c2013-12-15 13:31:35 +0100[diff] [blame]3706 /* Note that for now we don't reuse existing proxy connections */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]3707 if (unlikely((conn = cs_conn(si_alloc_cs(&s->si[1], NULL))) == NULL)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3708 txn->req.err_state = txn->req.msg_state;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3709 txn->req.msg_state = HTTP_MSG_ERROR;
3710 txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3711 req->analysers &= AN_REQ_FLT_END;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3712 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3713
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3714 if (!(s->flags & SF_ERR_MASK))
3715 s->flags |= SF_ERR_RESOURCE;
3716 if (!(s->flags & SF_FINST_MASK))
3717 s->flags |= SF_FINST_R;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3718
3719 return 0;
3720 }
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3721
3722 path = http_get_path(txn);
3723 url2sa(req->buf->p + msg->sl.rq.u,
3724 path ? path - (req->buf->p + msg->sl.rq.u) : msg->sl.rq.u_l,
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]3725 &conn->addr.to, NULL);
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3726 /* if the path was found, we have to remove everything between
3727 * req->buf->p + msg->sl.rq.u and path (excluded). If it was not
3728 * found, we need to replace from req->buf->p + msg->sl.rq.u for
3729 * u_l characters by a single "/".
3730 */
3731 if (path) {
3732 char *cur_ptr = req->buf->p;
3733 char *cur_end = cur_ptr + txn->req.sl.rq.l;
3734 int delta;
3735
3736 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u, path, NULL, 0);
3737 http_msg_move_end(&txn->req, delta);
3738 cur_end += delta;
3739 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
3740 goto return_bad_req;
3741 }
3742 else {
3743 char *cur_ptr = req->buf->p;
3744 char *cur_end = cur_ptr + txn->req.sl.rq.l;
3745 int delta;
3746
3747 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u,
3748 req->buf->p + msg->sl.rq.u + msg->sl.rq.u_l, "/", 1);
3749 http_msg_move_end(&txn->req, delta);
3750 cur_end += delta;
3751 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
3752 goto return_bad_req;
3753 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3754 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3755
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3756 /*
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]3757 * 7: Now we can work with the cookies.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3758 * Note that doing so might move headers in the request, but
3759 * the fields will stay coherent and the URI will not move.
3760 * This should only be performed in the backend.
3761 */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3762 if (s->be->cookie_name || sess->fe->capture_name)
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3763 manage_client_side_cookies(s, req);
Willy Tarreau7ac51f62007-03-25 16:00:04 +0200[diff] [blame]3764
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3765 /* add unique-id if "header-unique-id" is specified */
3766
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]3767 if (!LIST_ISEMPTY(&sess->fe->format_unique_id) && !s->unique_id) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]3768 if ((s->unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]3769 goto return_bad_req;
3770 s->unique_id[0] = '\0';
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3771 build_logline(s, s->unique_id, UNIQUEID_LEN, &sess->fe->format_unique_id);
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]3772 }
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3773
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3774 if (sess->fe->header_unique_id && s->unique_id) {
3775 chunk_printf(&trash, "%s: %s", sess->fe->header_unique_id, s->unique_id);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3776 if (trash.len < 0)
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3777 goto return_bad_req;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3778 if (unlikely(http_header_add_tail2(&txn->req, &txn->hdr_idx, trash.str, trash.len) < 0))
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3779 goto return_bad_req;
3780 }
3781
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]3782 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3783 * 9: add X-Forwarded-For if either the frontend or the backend
3784 * asks for it.
3785 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3786 if ((sess->fe->options | s->be->options) & PR_O_FWDFOR) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]3787 struct hdr_ctx ctx = { .idx = 0 };
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3788 if (!((sess->fe->options | s->be->options) & PR_O_FF_ALWAYS) &&
3789 http_find_header2(s->be->fwdfor_hdr_len ? s->be->fwdfor_hdr_name : sess->fe->fwdfor_hdr_name,
3790 s->be->fwdfor_hdr_len ? s->be->fwdfor_hdr_len : sess->fe->fwdfor_hdr_len,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3791 req->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]3792 /* The header is set to be added only if none is present
3793 * and we found it, so don't do anything.
3794 */
3795 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3796 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3797 /* Add an X-Forwarded-For header unless the source IP is
3798 * in the 'except' network range.
3799 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3800 if ((!sess->fe->except_mask.s_addr ||
3801 (((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr.s_addr & sess->fe->except_mask.s_addr)
3802 != sess->fe->except_net.s_addr) &&
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3803 (!s->be->except_mask.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3804 (((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]3805 != s->be->except_net.s_addr)) {
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]3806 int len;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3807 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3808 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr;
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]3809
3810 /* Note: we rely on the backend to get the header name to be used for
3811 * x-forwarded-for, because the header is really meant for the backends.
3812 * However, if the backend did not specify any option, we have to rely
3813 * on the frontend's header name.
3814 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3815 if (s->be->fwdfor_hdr_len) {
3816 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3817 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]3818 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3819 len = sess->fe->fwdfor_hdr_len;
3820 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]3821 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]3822 len += snprintf(trash.str + len, trash.size - len, ": %d.%d.%d.%d", pn[0], pn[1], pn[2], pn[3]);
Willy Tarreauedcf6682008-11-30 23:15:34 +0100[diff] [blame]3823
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3824 if (unlikely(http_header_add_tail2(&txn->req, &txn->hdr_idx, trash.str, len) < 0))
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3825 goto return_bad_req;
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]3826 }
3827 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3828 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET6) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3829 /* FIXME: for the sake of completeness, we should also support
3830 * 'except' here, although it is mostly useless in this case.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3831 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3832 int len;
3833 char pn[INET6_ADDRSTRLEN];
3834 inet_ntop(AF_INET6,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3835 (const void *)&((struct sockaddr_in6 *)(&cli_conn->addr.from))->sin6_addr,
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3836 pn, sizeof(pn));
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3837
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3838 /* Note: we rely on the backend to get the header name to be used for
3839 * x-forwarded-for, because the header is really meant for the backends.
3840 * However, if the backend did not specify any option, we have to rely
3841 * on the frontend's header name.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3842 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3843 if (s->be->fwdfor_hdr_len) {
3844 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3845 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3846 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3847 len = sess->fe->fwdfor_hdr_len;
3848 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3849 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]3850 len += snprintf(trash.str + len, trash.size - len, ": %s", pn);
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3851
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3852 if (unlikely(http_header_add_tail2(&txn->req, &txn->hdr_idx, trash.str, len) < 0))
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3853 goto return_bad_req;
3854 }
3855 }
3856
3857 /*
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3858 * 10: add X-Original-To if either the frontend or the backend
3859 * asks for it.
3860 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3861 if ((sess->fe->options | s->be->options) & PR_O_ORGTO) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3862
3863 /* FIXME: don't know if IPv6 can handle that case too. */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3864 if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3865 /* Add an X-Original-To header unless the destination IP is
3866 * in the 'except' network range.
3867 */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3868 conn_get_to_addr(cli_conn);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3869
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3870 if (cli_conn->addr.to.ss_family == AF_INET &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3871 ((!sess->fe->except_mask_to.s_addr ||
3872 (((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr.s_addr & sess->fe->except_mask_to.s_addr)
3873 != sess->fe->except_to.s_addr) &&
Emeric Brun5bd86a82010-10-22 17:23:04 +0200[diff] [blame]3874 (!s->be->except_mask_to.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3875 (((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]3876 != s->be->except_to.s_addr))) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3877 int len;
3878 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3879 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr;
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3880
3881 /* Note: we rely on the backend to get the header name to be used for
3882 * x-original-to, because the header is really meant for the backends.
3883 * However, if the backend did not specify any option, we have to rely
3884 * on the frontend's header name.
3885 */
3886 if (s->be->orgto_hdr_len) {
3887 len = s->be->orgto_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3888 memcpy(trash.str, s->be->orgto_hdr_name, len);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3889 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3890 len = sess->fe->orgto_hdr_len;
3891 memcpy(trash.str, sess->fe->orgto_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]3892 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]3893 len += snprintf(trash.str + len, trash.size - len, ": %d.%d.%d.%d", pn[0], pn[1], pn[2], pn[3]);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3894
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3895 if (unlikely(http_header_add_tail2(&txn->req, &txn->hdr_idx, trash.str, len) < 0))
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3896 goto return_bad_req;
3897 }
3898 }
3899 }
3900
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]3901 /* 11: add "Connection: close" or "Connection: keep-alive" if needed and not yet set.
3902 * If an "Upgrade" token is found, the header is left untouched in order not to have
3903 * to deal with some servers bugs : some of them fail an Upgrade if anything but
3904 * "Upgrade" is present in the Connection header.
3905 */
3906 if (!(txn->flags & TX_HDR_CONN_UPG) &&
3907 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3908 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3909 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3910 unsigned int want_flags = 0;
3911
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3912 if (msg->flags & HTTP_MSGF_VER_11) {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]3913 if (((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3914 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3915 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3916 !((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3917 want_flags |= TX_CON_CLO_SET;
3918 } else {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]3919 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3920 ((sess->fe->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL &&
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3921 (s->be->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL)) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3922 ((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3923 want_flags |= TX_CON_KAL_SET;
3924 }
3925
3926 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]3927 http_change_connection_header(txn, msg, want_flags);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3928 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3929
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3930
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3931 /* If we have no server assigned yet and we're balancing on url_param
3932 * with a POST request, we may be interested in checking the body for
3933 * that parameter. This will be done in another analyser.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3934 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3935 if (!(s->flags & (SF_ASSIGNED|SF_DIRECT)) &&
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3936 s->txn->meth == HTTP_METH_POST && s->be->url_param_name != NULL &&
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3937 (msg->flags & (HTTP_MSGF_CNT_LEN|HTTP_MSGF_TE_CHNK))) {
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]3938 channel_dont_connect(req);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3939 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3940 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]3941
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3942 req->analysers &= ~AN_REQ_FLT_XFER_DATA;
3943 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]3944#ifdef TCP_QUICKACK
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3945 /* We expect some data from the client. Unless we know for sure
3946 * we already have a full request, we have to re-enable quick-ack
3947 * in case we previously disabled it, otherwise we might cause
3948 * the client to delay further data.
3949 */
3950 if ((sess->listener->options & LI_O_NOQUICKACK) &&
3951 cli_conn && conn_ctrl_ready(cli_conn) &&
3952 ((msg->flags & HTTP_MSGF_TE_CHNK) ||
3953 (msg->body_len > req->buf->i - txn->req.eoh - 2)))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]3954 setsockopt(cli_conn->handle.fd, IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one));
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]3955#endif
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]3956
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3957 /*************************************************************
3958 * OK, that's finished for the headers. We have done what we *
3959 * could. Let's switch to the DATA state. *
3960 ************************************************************/
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3961 req->analyse_exp = TICK_ETERNITY;
3962 req->analysers &= ~an_bit;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]3963
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3964 s->logs.tv_request = now;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3965 /* OK let's go on with the BODY now */
3966 return 1;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3967
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3968 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]3969 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
Willy Tarreauf073a832009-03-01 23:21:47 +0100[diff] [blame]3970 /* we detected a parsing error. We want to archive this request
3971 * in the dedicated proxy area for later troubleshooting.
3972 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]3973 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]3974 }
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]3975
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3976 txn->req.err_state = txn->req.msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3977 txn->req.msg_state = HTTP_MSG_ERROR;
3978 txn->status = 400;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3979 req->analysers &= AN_REQ_FLT_END;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3980 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]3981
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3982 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3983 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3984 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3985
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3986 if (!(s->flags & SF_ERR_MASK))
3987 s->flags |= SF_ERR_PRXCOND;
3988 if (!(s->flags & SF_FINST_MASK))
3989 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]3990 return 0;
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]3991}
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3992
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3993/* This function is an analyser which processes the HTTP tarpit. It always
3994 * returns zero, at the beginning because it prevents any other processing
3995 * from occurring, and at the end because it terminates the request.
3996 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3997int http_process_tarpit(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3998{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3999 struct http_txn *txn = s->txn;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4000
4001 /* This connection is being tarpitted. The CLIENT side has
4002 * already set the connect expiration date to the right
4003 * timeout. We just have to check that the client is still
4004 * there and that the timeout has not expired.
4005 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4006 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4007 if ((req->flags & (CF_SHUTR|CF_READ_ERROR)) == 0 &&
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4008 !tick_is_expired(req->analyse_exp, now_ms))
4009 return 0;
4010
4011 /* We will set the queue timer to the time spent, just for
4012 * logging purposes. We fake a 500 server error, so that the
4013 * attacker will not suspect his connection has been tarpitted.
4014 * It will not cause trouble to the logs because we can exclude
4015 * the tarpitted connections by filtering on the 'PT' status flags.
4016 */
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4017 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
4018
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4019 if (!(req->flags & CF_READ_ERROR))
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4020 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4021
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4022 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4023 req->analyse_exp = TICK_ETERNITY;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]4024
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4025 if (!(s->flags & SF_ERR_MASK))
4026 s->flags |= SF_ERR_PRXCOND;
4027 if (!(s->flags & SF_FINST_MASK))
4028 s->flags |= SF_FINST_T;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4029 return 0;
4030}
4031
Willy Tarreau5a8f9472014-04-10 11:16:06 +0200[diff] [blame]4032/* This function is an analyser which waits for the HTTP request body. It waits
4033 * for either the buffer to be full, or the full advertised contents to have
4034 * reached the buffer. It must only be called after the standard HTTP request
4035 * processing has occurred, because it expects the request to be parsed and will
4036 * look for the Expect header. It may send a 100-Continue interim response. It
4037 * takes in input any state starting from HTTP_MSG_BODY and leaves with one of
4038 * HTTP_MSG_CHK_SIZE, HTTP_MSG_DATA or HTTP_MSG_TRAILERS. It returns zero if it
4039 * needs to read more data, or 1 once it has completed its analysis.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4040 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4041int http_wait_for_request_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4042{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4043 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4044 struct http_txn *txn = s->txn;
4045 struct http_msg *msg = &s->txn->req;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4046
4047 /* We have to parse the HTTP request body to find any required data.
4048 * "balance url_param check_post" should have been the only way to get
4049 * into this. We were brought here after HTTP header analysis, so all
4050 * related structures are ready.
4051 */
4052
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4053 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE) {
4054 /* This is the first call */
4055 if (msg->msg_state < HTTP_MSG_BODY)
4056 goto missing_data;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4057
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4058 if (msg->msg_state < HTTP_MSG_100_SENT) {
4059 /* If we have HTTP/1.1 and Expect: 100-continue, then we must
4060 * send an HTTP/1.1 100 Continue intermediate response.
4061 */
4062 if (msg->flags & HTTP_MSGF_VER_11) {
4063 struct hdr_ctx ctx;
4064 ctx.idx = 0;
4065 /* Expect is allowed in 1.1, look for it */
4066 if (http_find_header2("Expect", 6, req->buf->p, &txn->hdr_idx, &ctx) &&
4067 unlikely(ctx.vlen == 12 && strncasecmp(ctx.line+ctx.val, "100-continue", 12) == 0)) {
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]4068 co_inject(&s->res, http_100_chunk.str, http_100_chunk.len);
Thierry FOURNIER / OZON.IO43ad11d2016-12-12 15:19:58 +0100[diff] [blame]4069 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4070 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4071 }
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4072 msg->msg_state = HTTP_MSG_100_SENT;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4073 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4074
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]4075 /* we have msg->sov which points to the first byte of message body.
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4076 * req->buf->p still points to the beginning of the message. We
4077 * must save the body in msg->next because it survives buffer
4078 * re-alignments.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4079 */
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]4080 msg->next = msg->sov;
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4081
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4082 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4083 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
4084 else
4085 msg->msg_state = HTTP_MSG_DATA;
4086 }
4087
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4088 if (!(msg->flags & HTTP_MSGF_TE_CHNK)) {
4089 /* We're in content-length mode, we just have to wait for enough data. */
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4090 if (http_body_bytes(msg) < msg->body_len)
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4091 goto missing_data;
4092
4093 /* OK we have everything we need now */
4094 goto http_end;
4095 }
4096
4097 /* OK here we're parsing a chunked-encoded message */
4098
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4099 if (msg->msg_state == HTTP_MSG_CHUNK_SIZE) {
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]4100 /* read the chunk size and assign it to ->chunk_len, then
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4101 * set ->sov and ->next to point to the body and switch to DATA or
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4102 * TRAILERS state.
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4103 */
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]4104 unsigned int chunk;
4105 int ret = h1_parse_chunk_size(req->buf, msg->next, req->buf->i, &chunk);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4106
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4107 if (!ret)
4108 goto missing_data;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4109 else if (ret < 0) {
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]4110 msg->err_pos = req->buf->i + ret;
4111 if (msg->err_pos < 0)
4112 msg->err_pos += req->buf->size;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4113 stream_inc_http_err_ctr(s);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4114 goto return_bad_req;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4115 }
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]4116
4117 msg->chunk_len = chunk;
4118 msg->body_len += chunk;
4119
4120 msg->sol = ret;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]4121 msg->next += ret;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4122 msg->msg_state = msg->chunk_len ? HTTP_MSG_DATA : HTTP_MSG_TRAILERS;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4123 }
4124
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4125 /* Now we're in HTTP_MSG_DATA or HTTP_MSG_TRAILERS state.
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4126 * We have the first data byte is in msg->sov + msg->sol. We're waiting
4127 * for at least a whole chunk or the whole content length bytes after
4128 * msg->sov + msg->sol.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4129 */
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4130 if (msg->msg_state == HTTP_MSG_TRAILERS)
4131 goto http_end;
4132
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4133 if (http_body_bytes(msg) >= msg->body_len) /* we have enough bytes now */
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4134 goto http_end;
4135
4136 missing_data:
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4137 /* we get here if we need to wait for more data. If the buffer is full,
4138 * we have the maximum we can expect.
4139 */
4140 if (buffer_full(req->buf, global.tune.maxrewrite))
4141 goto http_end;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4142
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4143 if ((req->flags & CF_READ_TIMEOUT) || tick_is_expired(req->analyse_exp, now_ms)) {
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4144 txn->status = 408;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4145 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4146
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4147 if (!(s->flags & SF_ERR_MASK))
4148 s->flags |= SF_ERR_CLITO;
4149 if (!(s->flags & SF_FINST_MASK))
4150 s->flags |= SF_FINST_D;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4151 goto return_err_msg;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4152 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4153
4154 /* we get here if we need to wait for more data */
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4155 if (!(req->flags & (CF_SHUTR | CF_READ_ERROR))) {
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4156 /* Not enough data. We'll re-use the http-request
4157 * timeout here. Ideally, we should set the timeout
4158 * relative to the accept() date. We just set the
4159 * request timeout once at the beginning of the
4160 * request.
4161 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4162 channel_dont_connect(req);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4163 if (!tick_isset(req->analyse_exp))
Willy Tarreaucd7afc02009-07-12 10:03:17 +0200[diff] [blame]4164 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4165 return 0;
4166 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4167
4168 http_end:
4169 /* The situation will not evolve, so let's give up on the analysis. */
4170 s->logs.tv_request = now; /* update the request timer to reflect full request */
4171 req->analysers &= ~an_bit;
4172 req->analyse_exp = TICK_ETERNITY;
4173 return 1;
4174
4175 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4176 txn->req.err_state = txn->req.msg_state;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4177 txn->req.msg_state = HTTP_MSG_ERROR;
4178 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4179 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4180
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4181 if (!(s->flags & SF_ERR_MASK))
4182 s->flags |= SF_ERR_PRXCOND;
4183 if (!(s->flags & SF_FINST_MASK))
4184 s->flags |= SF_FINST_R;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4185
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4186 return_err_msg:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4187 req->analysers &= AN_REQ_FLT_END;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4188 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4189 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]4190 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4191 return 0;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4192}
4193
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4194/* send a server's name with an outgoing request over an established connection.
4195 * Note: this function is designed to be called once the request has been scheduled
4196 * for being forwarded. This is the reason why it rewinds the buffer before
4197 * proceeding.
4198 */
Willy Tarreau45c0d982012-03-09 12:11:57 +0100[diff] [blame]4199int 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]4200
4201 struct hdr_ctx ctx;
4202
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4203 char *hdr_name = be->server_id_hdr_name;
4204 int hdr_name_len = be->server_id_hdr_len;
Willy Tarreau394db372012-10-12 22:40:39 +0200[diff] [blame]4205 struct channel *chn = txn->req.chn;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4206 char *hdr_val;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4207 unsigned int old_o, old_i;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4208
William Lallemandd9e90662012-01-30 17:27:17 +0100[diff] [blame]4209 ctx.idx = 0;
4210
Willy Tarreau211cdec2014-04-17 20:18:08 +0200[diff] [blame]4211 old_o = http_hdr_rewind(&txn->req);
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4212 if (old_o) {
4213 /* The request was already skipped, let's restore it */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4214 b_rew(chn->buf, old_o);
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4215 txn->req.next += old_o;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4216 txn->req.sov += old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4217 }
4218
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4219 old_i = chn->buf->i;
4220 while (http_find_header2(hdr_name, hdr_name_len, txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4221 /* remove any existing values from the header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]4222 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4223 }
4224
4225 /* Add the new header requested with the server value */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4226 hdr_val = trash.str;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4227 memcpy(hdr_val, hdr_name, hdr_name_len);
4228 hdr_val += hdr_name_len;
4229 *hdr_val++ = ':';
4230 *hdr_val++ = ' ';
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4231 hdr_val += strlcpy2(hdr_val, srv_name, trash.str + trash.size - hdr_val);
4232 http_header_add_tail2(&txn->req, &txn->hdr_idx, trash.str, hdr_val - trash.str);
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4233
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4234 if (old_o) {
4235 /* If this was a forwarded request, we must readjust the amount of
4236 * data to be forwarded in order to take into account the size
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4237 * variations. Note that the current state is >= HTTP_MSG_BODY,
4238 * so we don't have to adjust ->sol.
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4239 */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4240 old_o += chn->buf->i - old_i;
4241 b_adv(chn->buf, old_o);
4242 txn->req.next -= old_o;
4243 txn->req.sov -= old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4244 }
4245
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4246 return 0;
4247}
4248
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4249/* Terminate current transaction and prepare a new one. This is very tricky
4250 * right now but it works.
4251 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4252void http_end_txn_clean_session(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4253{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4254 int prev_status = s->txn->status;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]4255 struct proxy *fe = strm_fe(s);
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4256 struct proxy *be = s->be;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4257 struct conn_stream *cs;
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4258 struct connection *srv_conn;
4259 struct server *srv;
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4260 unsigned int prev_flags = s->txn->flags;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4261
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4262 /* FIXME: We need a more portable way of releasing a backend's and a
4263 * server's connections. We need a safer way to reinitialize buffer
4264 * flags. We also need a more accurate method for computing per-request
4265 * data.
4266 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4267 /*
4268 * XXX cognet: This is probably wrong, this is killing a whole
4269 * connection, in the new world order, we probably want to just kill
4270 * the stream, this is to be revisited the day we handle multiple
4271 * streams in one server connection.
4272 */
4273 cs = objt_cs(s->si[1].end);
4274 srv_conn = cs_conn(cs);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4275
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4276 /* unless we're doing keep-alive, we want to quickly close the connection
4277 * to the server.
4278 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4279 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4280 !si_conn_ready(&s->si[1])) {
4281 s->si[1].flags |= SI_FL_NOLINGER | SI_FL_NOHALF;
4282 si_shutr(&s->si[1]);
4283 si_shutw(&s->si[1]);
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4284 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4285
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4286 if (s->flags & SF_BE_ASSIGNED) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4287 HA_ATOMIC_SUB(&be->beconn, 1);
Willy Tarreau2d5cd472012-03-01 23:34:37 +0100[diff] [blame]4288 if (unlikely(s->srv_conn))
4289 sess_change_server(s, NULL);
4290 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4291
4292 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4293 stream_process_counters(s);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4294
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4295 if (s->txn->status) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4296 int n;
4297
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4298 n = s->txn->status / 100;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4299 if (n < 1 || n > 5)
4300 n = 0;
4301
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4302 if (fe->mode == PR_MODE_HTTP) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4303 HA_ATOMIC_ADD(&fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4304 }
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4305 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4306 (be->mode == PR_MODE_HTTP)) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4307 HA_ATOMIC_ADD(&be->be_counters.p.http.rsp[n], 1);
4308 HA_ATOMIC_ADD(&be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4309 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4310 }
4311
4312 /* don't count other requests' data */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4313 s->logs.bytes_in -= s->req.buf->i;
4314 s->logs.bytes_out -= s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4315
4316 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4317 if (!LIST_ISEMPTY(&fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4318 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4319 (!(fe->options & PR_O_NULLNOLOG) || s->req.total)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4320 s->do_log(s);
4321 }
4322
Willy Tarreaud713bcc2014-06-25 15:36:04 +0200[diff] [blame]4323 /* stop tracking content-based counters */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4324 stream_stop_content_counters(s);
4325 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +0200[diff] [blame]4326
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4327 s->logs.accept_date = date; /* user-visible date for logging */
4328 s->logs.tv_accept = now; /* corrected date for internal use */
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200[diff] [blame]4329 s->logs.t_handshake = 0; /* There are no handshake in keep alive connection. */
4330 s->logs.t_idle = -1;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4331 tv_zero(&s->logs.tv_request);
4332 s->logs.t_queue = -1;
4333 s->logs.t_connect = -1;
4334 s->logs.t_data = -1;
4335 s->logs.t_close = 0;
4336 s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */
4337 s->logs.srv_queue_size = 0; /* we will get this number soon */
4338
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4339 s->logs.bytes_in = s->req.total = s->req.buf->i;
4340 s->logs.bytes_out = s->res.total = s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4341
4342 if (s->pend_pos)
4343 pendconn_free(s->pend_pos);
4344
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4345 if (objt_server(s->target)) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4346 if (s->flags & SF_CURR_SESS) {
4347 s->flags &= ~SF_CURR_SESS;
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4348 HA_ATOMIC_SUB(&objt_server(s->target)->cur_sess, 1);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4349 }
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4350 if (may_dequeue_tasks(objt_server(s->target), be))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4351 process_srv_queue(objt_server(s->target));
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4352 }
4353
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4354 s->target = NULL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4355
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4356 /* only release our endpoint if we don't intend to reuse the
4357 * connection.
4358 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4359 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4360 !si_conn_ready(&s->si[1])) {
4361 si_release_endpoint(&s->si[1]);
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4362 srv_conn = NULL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4363 }
4364
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4365 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
4366 s->si[1].err_type = SI_ET_NONE;
4367 s->si[1].conn_retries = 0; /* used for logging too */
4368 s->si[1].exp = TICK_ETERNITY;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4369 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]4370 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]4371 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]4372 s->flags &= ~(SF_DIRECT|SF_ASSIGNED|SF_ADDR_SET|SF_BE_ASSIGNED|SF_FORCE_PRST|SF_IGNORE_PRST);
4373 s->flags &= ~(SF_CURR_SESS|SF_REDIRECTABLE|SF_SRV_REUSED);
4374 s->flags &= ~(SF_ERR_MASK|SF_FINST_MASK|SF_REDISP);
Willy Tarreau543db622012-11-15 16:41:22 +0100[diff] [blame]4375
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4376 s->txn->meth = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4377 http_reset_txn(s);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4378 s->txn->flags |= TX_NOT_FIRST | TX_WAIT_NEXT_RQ;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4379
4380 if (prev_status == 401 || prev_status == 407) {
4381 /* In HTTP keep-alive mode, if we receive a 401, we still have
4382 * a chance of being able to send the visitor again to the same
4383 * server over the same connection. This is required by some
4384 * broken protocols such as NTLM, and anyway whenever there is
4385 * an opportunity for sending the challenge to the proper place,
4386 * it's better to do it (at least it helps with debugging).
4387 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4388 s->txn->flags |= TX_PREFER_LAST;
Willy Tarreaubd99d582015-09-02 10:40:43 +0200[diff] [blame]4389 if (srv_conn)
4390 srv_conn->flags |= CO_FL_PRIVATE;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4391 }
4392
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4393 /* Never ever allow to reuse a connection from a non-reuse backend */
4394 if (srv_conn && (be->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
4395 srv_conn->flags |= CO_FL_PRIVATE;
4396
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4397 if (fe->options2 & PR_O2_INDEPSTR)
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4398 s->si[1].flags |= SI_FL_INDEP_STR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4399
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4400 if (fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4401 s->req.flags |= CF_NEVER_WAIT;
4402 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200[diff] [blame]4403 }
4404
Willy Tarreau714ea782015-11-25 20:11:11 +0100[diff] [blame]4405 /* we're removing the analysers, we MUST re-enable events detection.
4406 * We don't enable close on the response channel since it's either
4407 * already closed, or in keep-alive with an idle connection handler.
4408 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4409 channel_auto_read(&s->req);
4410 channel_auto_close(&s->req);
4411 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4412
Willy Tarreau1c59bd52015-11-02 20:20:11 +0100[diff] [blame]4413 /* we're in keep-alive with an idle connection, monitor it if not already done */
4414 if (srv_conn && LIST_ISEMPTY(&srv_conn->list)) {
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4415 srv = objt_server(srv_conn->target);
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4416 if (!srv)
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4417 si_idle_cs(&s->si[1], NULL);
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4418 else if (srv_conn->flags & CO_FL_PRIVATE)
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4419 si_idle_cs(&s->si[1], (srv->priv_conns ? &srv->priv_conns[tid] : NULL));
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4420 else if (prev_flags & TX_NOT_FIRST)
4421 /* note: we check the request, not the connection, but
4422 * this is valid for strategies SAFE and AGGR, and in
4423 * case of ALWS, we don't care anyway.
4424 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4425 si_idle_cs(&s->si[1], (srv->safe_conns ? &srv->safe_conns[tid] : NULL));
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4426 else
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4427 si_idle_cs(&s->si[1], (srv->idle_conns ? &srv->idle_conns[tid] : NULL));
Willy Tarreau4320eaa2015-08-05 11:08:30 +0200[diff] [blame]4428 }
Christopher Faulete6006242017-03-10 11:52:44 +0100[diff] [blame]4429 s->req.analysers = strm_li(s) ? strm_li(s)->analysers : 0;
4430 s->res.analysers = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4431}
4432
4433
4434/* This function updates the request state machine according to the response
4435 * state machine and buffer flags. It returns 1 if it changes anything (flag
4436 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4437 * it is only used to find when a request/response couple is complete. Both
4438 * this function and its equivalent should loop until both return zero. It
4439 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4440 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4441int http_sync_req_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4442{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4443 struct channel *chn = &s->req;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4444 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4445 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4446 unsigned int old_state = txn->req.msg_state;
4447
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4448 if (unlikely(txn->req.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4449 return 0;
4450
4451 if (txn->req.msg_state == HTTP_MSG_DONE) {
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4452 /* No need to read anymore, the request was completely parsed.
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4453 * We can shut the read side unless we want to abort_on_close,
4454 * or we have a POST request. The issue with POST requests is
4455 * that some browsers still send a CRLF after the request, and
4456 * this CRLF must be read so that it does not remain in the kernel
4457 * buffers, otherwise a close could cause an RST on some systems
4458 * (eg: Linux).
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4459 * Note that if we're using keep-alive on the client side, we'd
4460 * rather poll now and keep the polling enabled for the whole
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4461 * stream's life than enabling/disabling it between each
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4462 * response and next request.
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4463 */
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4464 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4465 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]4466 (!(s->be->options & PR_O_ABRT_CLOSE) ||
4467 (s->si[0].flags & SI_FL_CLEAN_ABRT)) &&
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4468 txn->meth != HTTP_METH_POST)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4469 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4470
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4471 /* if the server closes the connection, we want to immediately react
4472 * and close the socket to save packets and syscalls.
4473 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4474 s->si[1].flags |= SI_FL_NOHALF;
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4475
Willy Tarreau7f876a12015-11-18 11:59:55 +0100[diff] [blame]4476 /* In any case we've finished parsing the request so we must
4477 * disable Nagle when sending data because 1) we're not going
4478 * to shut this side, and 2) the server is waiting for us to
4479 * send pending data.
4480 */
4481 chn->flags |= CF_NEVER_WAIT;
4482
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4483 if (txn->rsp.msg_state == HTTP_MSG_ERROR)
4484 goto wait_other_side;
4485
4486 if (txn->rsp.msg_state < HTTP_MSG_DONE) {
4487 /* The server has not finished to respond, so we
4488 * don't want to move in order not to upset it.
4489 */
4490 goto wait_other_side;
4491 }
4492
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4493 /* When we get here, it means that both the request and the
4494 * response have finished receiving. Depending on the connection
4495 * mode, we'll have to wait for the last bytes to leave in either
4496 * direction, and sometimes for a close to be effective.
4497 */
4498
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4499 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4500 /* Server-close mode : queue a connection close to the server */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4501 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW)))
4502 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4503 }
4504 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4505 /* Option forceclose is set, or either side wants to close,
4506 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4507 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4508 * once both states are CLOSED.
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4509 *
4510 * However, there is an exception if the response
4511 * length is undefined. In this case, we need to wait
4512 * the close from the server. The response will be
4513 * switched in TUNNEL mode until the end.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4514 */
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4515 if (!(txn->rsp.flags & HTTP_MSGF_XFER_LEN) &&
4516 txn->rsp.msg_state != HTTP_MSG_CLOSED)
4517 goto check_channel_flags;
4518
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4519 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
4520 channel_shutr_now(chn);
4521 channel_shutw_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4522 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4523 }
4524 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4525 /* The last possible modes are keep-alive and tunnel. Tunnel mode
4526 * will not have any analyser so it needs to poll for reads.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4527 */
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4528 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN) {
4529 channel_auto_read(chn);
4530 txn->req.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4531 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4532 }
4533
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4534 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4535 }
4536
4537 if (txn->req.msg_state == HTTP_MSG_CLOSING) {
4538 http_msg_closing:
4539 /* nothing else to forward, just waiting for the output buffer
4540 * to be empty and for the shutw_now to take effect.
4541 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4542 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4543 txn->req.msg_state = HTTP_MSG_CLOSED;
4544 goto http_msg_closed;
4545 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4546 else if (chn->flags & CF_SHUTW) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4547 txn->req.err_state = txn->req.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4548 txn->req.msg_state = HTTP_MSG_ERROR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4549 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4550 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4551 }
4552
4553 if (txn->req.msg_state == HTTP_MSG_CLOSED) {
4554 http_msg_closed:
Willy Tarreau80593512017-12-14 10:43:31 +0100[diff] [blame]4555 /* if we don't know whether the server will close, we need to hard close */
4556 if (txn->rsp.flags & HTTP_MSGF_XFER_LEN)
4557 s->si[1].flags |= SI_FL_NOLINGER; /* we want to close ASAP */
4558
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4559 /* see above in MSG_DONE why we only do this in these states */
4560 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4561 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]4562 (!(s->be->options & PR_O_ABRT_CLOSE) ||
4563 (s->si[0].flags & SI_FL_CLEAN_ABRT)))
Willy Tarreau2e7a1652013-12-15 15:32:10 +0100[diff] [blame]4564 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4565 goto wait_other_side;
4566 }
4567
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4568 check_channel_flags:
4569 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4570 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4571 /* if we've just closed an output, let's switch */
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4572 txn->req.msg_state = HTTP_MSG_CLOSING;
4573 goto http_msg_closing;
4574 }
4575
4576
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4577 wait_other_side:
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4578 return txn->req.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4579}
4580
4581
4582/* This function updates the response state machine according to the request
4583 * state machine and buffer flags. It returns 1 if it changes anything (flag
4584 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4585 * it is only used to find when a request/response couple is complete. Both
4586 * this function and its equivalent should loop until both return zero. It
4587 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4588 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4589int http_sync_res_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4590{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4591 struct channel *chn = &s->res;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4592 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4593 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4594 unsigned int old_state = txn->rsp.msg_state;
4595
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4596 if (unlikely(txn->rsp.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4597 return 0;
4598
4599 if (txn->rsp.msg_state == HTTP_MSG_DONE) {
4600 /* In theory, we don't need to read anymore, but we must
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4601 * still monitor the server connection for a possible close
4602 * while the request is being uploaded, so we don't disable
4603 * reading.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4604 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4605 /* channel_dont_read(chn); */
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4606
4607 if (txn->req.msg_state == HTTP_MSG_ERROR)
4608 goto wait_other_side;
4609
4610 if (txn->req.msg_state < HTTP_MSG_DONE) {
4611 /* The client seems to still be sending data, probably
4612 * because we got an error response during an upload.
4613 * We have the choice of either breaking the connection
4614 * or letting it pass through. Let's do the later.
4615 */
4616 goto wait_other_side;
4617 }
4618
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4619 /* When we get here, it means that both the request and the
4620 * response have finished receiving. Depending on the connection
4621 * mode, we'll have to wait for the last bytes to leave in either
4622 * direction, and sometimes for a close to be effective.
4623 */
4624
4625 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4626 /* Server-close mode : shut read and wait for the request
4627 * side to close its output buffer. The caller will detect
4628 * when we're in DONE and the other is in CLOSED and will
4629 * catch that for the final cleanup.
4630 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4631 if (!(chn->flags & (CF_SHUTR|CF_SHUTR_NOW)))
4632 channel_shutr_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4633 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4634 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4635 /* Option forceclose is set, or either side wants to close,
4636 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4637 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4638 * once both states are CLOSED.
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4639 *
4640 * However, there is an exception if the response length
4641 * is undefined. In this case, we switch in TUNNEL mode.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4642 */
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4643 if (!(txn->rsp.flags & HTTP_MSGF_XFER_LEN)) {
4644 channel_auto_read(chn);
4645 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
4646 chn->flags |= CF_NEVER_WAIT;
4647 }
4648 else if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4649 channel_shutr_now(chn);
4650 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4651 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4652 }
4653 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4654 /* The last possible modes are keep-alive and tunnel. Tunnel will
4655 * need to forward remaining data. Keep-alive will need to monitor
4656 * for connection closing.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4657 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4658 channel_auto_read(chn);
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4659 chn->flags |= CF_NEVER_WAIT;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4660 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN)
4661 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4662 }
4663
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4664 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4665 }
4666
4667 if (txn->rsp.msg_state == HTTP_MSG_CLOSING) {
4668 http_msg_closing:
4669 /* nothing else to forward, just waiting for the output buffer
4670 * to be empty and for the shutw_now to take effect.
4671 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4672 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4673 txn->rsp.msg_state = HTTP_MSG_CLOSED;
4674 goto http_msg_closed;
4675 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4676 else if (chn->flags & CF_SHUTW) {
Christopher Fauleta3992e02017-07-18 10:35:55 +0200[diff] [blame]4677 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4678 txn->rsp.msg_state = HTTP_MSG_ERROR;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4679 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4680 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4681 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4682 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4683 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4684 }
4685
4686 if (txn->rsp.msg_state == HTTP_MSG_CLOSED) {
4687 http_msg_closed:
4688 /* drop any pending data */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]4689 channel_truncate(chn);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4690 channel_auto_close(chn);
4691 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4692 goto wait_other_side;
4693 }
4694
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4695 check_channel_flags:
4696 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4697 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4698 /* if we've just closed an output, let's switch */
4699 txn->rsp.msg_state = HTTP_MSG_CLOSING;
4700 goto http_msg_closing;
4701 }
4702
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4703 wait_other_side:
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4704 /* We force the response to leave immediately if we're waiting for the
4705 * other side, since there is no pending shutdown to push it out.
4706 */
4707 if (!channel_is_empty(chn))
4708 chn->flags |= CF_SEND_DONTWAIT;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4709 return txn->rsp.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4710}
4711
4712
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4713/* Resync the request and response state machines. */
4714void http_resync_states(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4715{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4716 struct http_txn *txn = s->txn;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4717#ifdef DEBUG_FULL
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4718 int old_req_state = txn->req.msg_state;
4719 int old_res_state = txn->rsp.msg_state;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4720#endif
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4721
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4722 http_sync_req_state(s);
4723 while (1) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4724 if (!http_sync_res_state(s))
4725 break;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4726 if (!http_sync_req_state(s))
4727 break;
4728 }
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]4729
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4730 DPRINTF(stderr,"[%u] %s: stream=%p old=%s,%s cur=%s,%s "
4731 "req->analysers=0x%08x res->analysers=0x%08x\n",
4732 now_ms, __FUNCTION__, s,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]4733 h1_msg_state_str(old_req_state), h1_msg_state_str(old_res_state),
4734 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]4735 s->req.analysers, s->res.analysers);
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4736
4737
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4738 /* OK, both state machines agree on a compatible state.
4739 * There are a few cases we're interested in :
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4740 * - HTTP_MSG_CLOSED on both sides means we've reached the end in both
4741 * directions, so let's simply disable both analysers.
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4742 * - HTTP_MSG_CLOSED on the response only or HTTP_MSG_ERROR on either
4743 * means we must abort the request.
4744 * - HTTP_MSG_TUNNEL on either means we have to disable analyser on
4745 * corresponding channel.
4746 * - HTTP_MSG_DONE or HTTP_MSG_CLOSED on the request and HTTP_MSG_DONE
4747 * on the response with server-close mode means we've completed one
4748 * request and we must re-initialize the server connection.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4749 */
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4750 if (txn->req.msg_state == HTTP_MSG_CLOSED &&
4751 txn->rsp.msg_state == HTTP_MSG_CLOSED) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4752 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4753 channel_auto_close(&s->req);
4754 channel_auto_read(&s->req);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4755 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4756 channel_auto_close(&s->res);
4757 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4758 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4759 else if (txn->rsp.msg_state == HTTP_MSG_CLOSED ||
4760 txn->rsp.msg_state == HTTP_MSG_ERROR ||
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4761 txn->req.msg_state == HTTP_MSG_ERROR) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4762 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4763 channel_auto_close(&s->res);
4764 channel_auto_read(&s->res);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4765 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4766 channel_abort(&s->req);
4767 channel_auto_close(&s->req);
4768 channel_auto_read(&s->req);
4769 channel_truncate(&s->req);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4770 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4771 else if (txn->req.msg_state == HTTP_MSG_TUNNEL ||
4772 txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4773 if (txn->req.msg_state == HTTP_MSG_TUNNEL) {
4774 s->req.analysers &= AN_REQ_FLT_END;
4775 if (HAS_REQ_DATA_FILTERS(s))
4776 s->req.analysers |= AN_REQ_FLT_XFER_DATA;
4777 }
4778 if (txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4779 s->res.analysers &= AN_RES_FLT_END;
4780 if (HAS_RSP_DATA_FILTERS(s))
4781 s->res.analysers |= AN_RES_FLT_XFER_DATA;
4782 }
4783 channel_auto_close(&s->req);
4784 channel_auto_read(&s->req);
4785 channel_auto_close(&s->res);
4786 channel_auto_read(&s->res);
4787 }
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4788 else if ((txn->req.msg_state == HTTP_MSG_DONE ||
4789 txn->req.msg_state == HTTP_MSG_CLOSED) &&
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4790 txn->rsp.msg_state == HTTP_MSG_DONE &&
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4791 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
4792 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
4793 /* server-close/keep-alive: terminate this transaction,
4794 * possibly killing the server connection and reinitialize
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4795 * a fresh-new transaction, but only once we're sure there's
4796 * enough room in the request and response buffer to process
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]4797 * another request. They must not hold any pending output data
4798 * and the response buffer must realigned
4799 * (realign is done is http_end_txn_clean_session).
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4800 */
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4801 if (s->req.buf->o)
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4802 s->req.flags |= CF_WAKE_WRITE;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4803 else if (s->res.buf->o)
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4804 s->res.flags |= CF_WAKE_WRITE;
Christopher Fauleta81ff602017-07-18 22:01:05 +0200[diff] [blame]4805 else {
4806 s->req.analysers = AN_REQ_FLT_END;
4807 s->res.analysers = AN_RES_FLT_END;
4808 txn->flags |= TX_WAIT_CLEANUP;
4809 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4810 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4811}
4812
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4813/* This function is an analyser which forwards request body (including chunk
4814 * sizes if any). It is called as soon as we must forward, even if we forward
4815 * zero byte. The only situation where it must not be called is when we're in
4816 * tunnel mode and we want to forward till the close. It's used both to forward
4817 * remaining data and to resync after end of body. It expects the msg_state to
4818 * 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]4819 * 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]4820 * When in MSG_DATA or MSG_TRAILERS, it will automatically forward chunk_len
Willy Tarreauc24715e2014-04-17 15:21:20 +0200[diff] [blame]4821 * bytes of pending data + the headers if not already done.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4822 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4823int http_request_forward_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4824{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4825 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4826 struct http_txn *txn = s->txn;
4827 struct http_msg *msg = &s->txn->req;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]4828 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4829
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4830 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
4831 now_ms, __FUNCTION__,
4832 s,
4833 req,
4834 req->rex, req->wex,
4835 req->flags,
4836 req->buf->i,
4837 req->analysers);
4838
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4839 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
4840 return 0;
4841
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4842 if ((req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) ||
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4843 ((req->flags & CF_SHUTW) && (req->to_forward || req->buf->o))) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4844 /* Output closed while we were sending data. We must abort and
4845 * wake the other side up.
4846 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4847 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4848 msg->msg_state = HTTP_MSG_ERROR;
4849 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]4850 return 1;
4851 }
4852
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4853 /* Note that we don't have to send 100-continue back because we don't
4854 * need the data to complete our job, and it's up to the server to
4855 * decide whether to return 100, 417 or anything else in return of
4856 * an "Expect: 100-continue" header.
4857 */
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4858 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4859 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
4860 ? HTTP_MSG_CHUNK_SIZE
4861 : HTTP_MSG_DATA);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4862
4863 /* TODO/filters: when http-buffer-request option is set or if a
4864 * rule on url_param exists, the first chunk size could be
4865 * already parsed. In that case, msg->next is after the chunk
4866 * size (including the CRLF after the size). So this case should
4867 * be handled to */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4868 }
4869
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4870 /* Some post-connect processing might want us to refrain from starting to
4871 * forward data. Currently, the only reason for this is "balance url_param"
4872 * whichs need to parse/process the request after we've enabled forwarding.
4873 */
4874 if (unlikely(msg->flags & HTTP_MSGF_WAIT_CONN)) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4875 if (!(s->res.flags & CF_READ_ATTACHED)) {
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4876 channel_auto_connect(req);
Willy Tarreau644c1012014-04-30 18:11:11 +0200[diff] [blame]4877 req->flags |= CF_WAKE_CONNECT;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4878 goto missing_data_or_waiting;
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4879 }
4880 msg->flags &= ~HTTP_MSGF_WAIT_CONN;
4881 }
4882
Willy Tarreau80a92c02014-03-12 10:41:13 +0100[diff] [blame]4883 /* in most states, we should abort in case of early close */
4884 channel_auto_close(req);
4885
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4886 if (req->to_forward) {
4887 /* We can't process the buffer's contents yet */
4888 req->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4889 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4890 }
4891
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4892 if (msg->msg_state < HTTP_MSG_DONE) {
4893 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
4894 ? http_msg_forward_chunked_body(s, msg)
4895 : http_msg_forward_body(s, msg));
4896 if (!ret)
4897 goto missing_data_or_waiting;
4898 if (ret < 0)
4899 goto return_bad_req;
4900 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4901
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4902 /* other states, DONE...TUNNEL */
4903 /* we don't want to forward closes on DONE except in tunnel mode. */
4904 if ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
4905 channel_dont_close(req);
Willy Tarreau5c54c712010-07-17 08:02:58 +0200[diff] [blame]4906
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4907 http_resync_states(s);
4908 if (!(req->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4909 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
4910 if (req->flags & CF_SHUTW) {
4911 /* request errors are most likely due to the
4912 * server aborting the transfer. */
4913 goto aborted_xfer;
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4914 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4915 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]4916 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]4917 goto return_bad_req;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4918 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4919 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4920 }
4921
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4922 /* If "option abortonclose" is set on the backend, we want to monitor
4923 * the client's connection and forward any shutdown notification to the
4924 * server, which will decide whether to close or to go on processing the
4925 * request. We only do that in tunnel mode, and not in other modes since
4926 * it can be abused to exhaust source ports. */
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]4927 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]4928 channel_auto_read(req);
4929 if ((req->flags & (CF_SHUTR|CF_READ_NULL)) &&
4930 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN))
4931 s->si[1].flags |= SI_FL_NOLINGER;
4932 channel_auto_close(req);
4933 }
4934 else if (s->txn->meth == HTTP_METH_POST) {
4935 /* POST requests may require to read extra CRLF sent by broken
4936 * browsers and which could cause an RST to be sent upon close
4937 * on some systems (eg: Linux). */
4938 channel_auto_read(req);
4939 }
4940 return 0;
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]4941
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4942 missing_data_or_waiting:
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4943 /* stop waiting for data if the input is closed before the end */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]4944 if (msg->msg_state < HTTP_MSG_ENDING && req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4945 if (!(s->flags & SF_ERR_MASK))
4946 s->flags |= SF_ERR_CLICL;
4947 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4948 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4949 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4950 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4951 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4952 }
4953
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4954 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
4955 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4956 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4957 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4958
4959 goto return_bad_req_stats_ok;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4960 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4961
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4962 /* waiting for the last bits to leave the buffer */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4963 if (req->flags & CF_SHUTW)
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4964 goto aborted_xfer;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4965
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]4966 /* When TE: chunked is used, we need to get there again to parse remaining
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4967 * 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]4968 * And when content-length is used, we never want to let the possible
4969 * shutdown be forwarded to the other side, as the state machine will
4970 * take care of it once the client responds. It's also important to
4971 * prevent TIME_WAITs from accumulating on the backend side, and for
4972 * HTTP/2 where the last frame comes with a shutdown.
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]4973 */
Willy Tarreauff47b3f2017-12-29 16:30:31 +0100[diff] [blame]4974 if (msg->flags & (HTTP_MSGF_TE_CHNK|HTTP_MSGF_CNT_LEN))
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4975 channel_dont_close(req);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]4976
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4977 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4978 * 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]4979 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]4980 * modes are already handled by the stream sock layer. We must not do
4981 * this in content-length mode because it could present the MSG_MORE
4982 * flag with the last block of forwarded data, which would cause an
4983 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4984 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4985 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4986 req->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4987
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4988 return 0;
4989
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4990 return_bad_req: /* let's centralize all bad requests */
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4991 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4992 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]4993 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]4994
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4995 return_bad_req_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4996 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4997 txn->req.msg_state = HTTP_MSG_ERROR;
4998 if (txn->status) {
4999 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5000 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5001 } else {
5002 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5003 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5004 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5005 req->analysers &= AN_REQ_FLT_END;
5006 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]5007
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5008 if (!(s->flags & SF_ERR_MASK))
5009 s->flags |= SF_ERR_PRXCOND;
5010 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5011 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5012 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5013 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5014 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5015 }
5016 return 0;
5017
5018 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5019 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5020 txn->req.msg_state = HTTP_MSG_ERROR;
5021 if (txn->status) {
5022 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5023 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5024 } else {
5025 txn->status = 502;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5026 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5027 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5028 req->analysers &= AN_REQ_FLT_END;
5029 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]5030
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5031 HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
5032 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5033 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5034 HA_ATOMIC_ADD(&objt_server(s->target)->counters.srv_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5035
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5036 if (!(s->flags & SF_ERR_MASK))
5037 s->flags |= SF_ERR_SRVCL;
5038 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5039 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5040 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5041 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5042 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5043 }
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5044 return 0;
5045}
5046
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5047/* This stream analyser waits for a complete HTTP response. It returns 1 if the
5048 * processing can continue on next analysers, or zero if it either needs more
5049 * data or wants to immediately abort the response (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5050 * 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]5051 * when it has nothing left to do, and may remove any analyser when it wants to
5052 * abort.
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5053 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5054int http_wait_for_response(struct stream *s, struct channel *rep, int an_bit)
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5055{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5056 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5057 struct http_txn *txn = s->txn;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5058 struct http_msg *msg = &txn->rsp;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5059 struct hdr_ctx ctx;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5060 int use_close_only;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5061 int cur_idx;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5062 int n;
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]5063
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5064 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200[diff] [blame]5065 now_ms, __FUNCTION__,
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5066 s,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5067 rep,
5068 rep->rex, rep->wex,
5069 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5070 rep->buf->i,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5071 rep->analysers);
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200[diff] [blame]5072
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5073 /*
5074 * Now parse the partial (or complete) lines.
5075 * We will check the response syntax, and also join multi-line
5076 * headers. An index of all the lines will be elaborated while
5077 * parsing.
5078 *
5079 * For the parsing, we use a 28 states FSM.
5080 *
5081 * Here is the information we currently have :
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5082 * rep->buf->p = beginning of response
5083 * rep->buf->p + msg->eoh = end of processed headers / start of current one
5084 * rep->buf->p + rep->buf->i = end of input data
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]5085 * msg->eol = end of current header or line (LF or CRLF)
5086 * msg->next = first non-visited byte
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5087 */
5088
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5089 next_one:
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5090 /* There's a protected area at the end of the buffer for rewriting
5091 * purposes. We don't want to start to parse the request if the
5092 * protected area is affected, because we may have to move processed
5093 * data later, which is much more complicated.
5094 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5095 if (buffer_not_empty(rep->buf) && msg->msg_state < HTTP_MSG_ERROR) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]5096 if (unlikely(!channel_is_rewritable(rep))) {
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5097 /* some data has still not left the buffer, wake us once that's done */
5098 if (rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
5099 goto abort_response;
5100 channel_dont_close(rep);
5101 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]5102 rep->flags |= CF_WAKE_WRITE;
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5103 return 0;
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5104 }
5105
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5106 if (unlikely(bi_end(rep->buf) < b_ptr(rep->buf, msg->next) ||
5107 bi_end(rep->buf) > rep->buf->data + rep->buf->size - global.tune.maxrewrite))
5108 buffer_slow_realign(rep->buf);
5109
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5110 if (likely(msg->next < rep->buf->i))
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]5111 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5112 }
5113
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5114 /* 1: we might have to print this header in debug mode */
5115 if (unlikely((global.mode & MODE_DEBUG) &&
5116 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]5117 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5118 char *eol, *sol;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5119
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5120 sol = rep->buf->p;
5121 eol = sol + (msg->sl.st.l ? msg->sl.st.l : rep->buf->i);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5122 debug_hdr("srvrep", s, sol, eol);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5123
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5124 sol += hdr_idx_first_pos(&txn->hdr_idx);
5125 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5126
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5127 while (cur_idx) {
5128 eol = sol + txn->hdr_idx.v[cur_idx].len;
5129 debug_hdr("srvhdr", s, sol, eol);
5130 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
5131 cur_idx = txn->hdr_idx.v[cur_idx].next;
5132 }
5133 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5134
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5135 /*
5136 * Now we quickly check if we have found a full valid response.
5137 * If not so, we check the FD and buffer states before leaving.
5138 * A full response is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5139 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5140 * responses are checked first.
5141 *
5142 * Depending on whether the client is still there or not, we
5143 * may send an error response back or not. Note that normally
5144 * we should only check for HTTP status there, and check I/O
5145 * errors somewhere else.
5146 */
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5147
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5148 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5149 /* Invalid response */
5150 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
5151 /* we detected a parsing error. We want to archive this response
5152 * in the dedicated proxy area for later troubleshooting.
5153 */
5154 hdr_response_bad:
5155 if (msg->msg_state == HTTP_MSG_ERROR || msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5156 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]5157
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5158 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5159 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5160 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5161 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5162 }
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]5163 abort_response:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5164 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5165 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5166 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5167 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5168 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5169 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5170
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5171 if (!(s->flags & SF_ERR_MASK))
5172 s->flags |= SF_ERR_PRXCOND;
5173 if (!(s->flags & SF_FINST_MASK))
5174 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5175
5176 return 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5177 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5178
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5179 /* too large response does not fit in buffer. */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5180 else if (buffer_full(rep->buf, global.tune.maxrewrite)) {
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]5181 if (msg->err_pos < 0)
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5182 msg->err_pos = rep->buf->i;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5183 goto hdr_response_bad;
5184 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5185
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5186 /* read error */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5187 else if (rep->flags & CF_READ_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5188 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5189 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]5190 else if (txn->flags & TX_NOT_FIRST)
5191 goto abort_keep_alive;
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5192
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5193 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5194 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5195 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5196 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_ERROR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5197 }
Willy Tarreau461f6622008-08-15 23:43:19 +0200[diff] [blame]5198
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5199 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5200 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5201 txn->status = 502;
Olivier Houchard522eea72017-11-03 16:27:47 +0100[diff] [blame]5202
5203 /* Check to see if the server refused the early data.
5204 * If so, just send a 425
5205 */
5206 if (objt_cs(s->si[1].end)) {
5207 struct connection *conn = objt_cs(s->si[1].end)->conn;
5208
5209 if (conn->err_code == CO_ER_SSL_EARLY_FAILED)
5210 txn->status = 425;
5211 }
5212
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5213 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5214 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5215 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau816b9792009-09-15 21:25:21 +0200[diff] [blame]5216
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5217 if (!(s->flags & SF_ERR_MASK))
5218 s->flags |= SF_ERR_SRVCL;
5219 if (!(s->flags & SF_FINST_MASK))
5220 s->flags |= SF_FINST_H;
Willy Tarreaucebf57e2008-08-15 18:16:37 +0200[diff] [blame]5221 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5222 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5223
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +0200[diff] [blame]5224 /* read timeout : return a 504 to the client. */
5225 else if (rep->flags & CF_READ_TIMEOUT) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5226 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5227 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]5228
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5229 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5230 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5231 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5232 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_TIMEOUT);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5233 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5234
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5235 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5236 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5237 txn->status = 504;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5238 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5239 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5240 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5241
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5242 if (!(s->flags & SF_ERR_MASK))
5243 s->flags |= SF_ERR_SRVTO;
5244 if (!(s->flags & SF_FINST_MASK))
5245 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5246 return 0;
5247 }
Willy Tarreaua7c52762008-08-16 18:40:18 +0200[diff] [blame]5248
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5249 /* client abort with an abortonclose */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5250 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]5251 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
5252 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5253 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5254 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5255
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5256 rep->analysers &= AN_RES_FLT_END;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5257 channel_auto_close(rep);
5258
5259 txn->status = 400;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5260 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5261 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5262
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5263 if (!(s->flags & SF_ERR_MASK))
5264 s->flags |= SF_ERR_CLICL;
5265 if (!(s->flags & SF_FINST_MASK))
5266 s->flags |= SF_FINST_H;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5267
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5268 /* process_stream() will take care of the error */
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5269 return 0;
5270 }
5271
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5272 /* close from server, capture the response if the server has started to respond */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5273 else if (rep->flags & CF_SHUTR) {
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5274 if (msg->msg_state >= HTTP_MSG_RPVER || msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5275 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]5276 else if (txn->flags & TX_NOT_FIRST)
5277 goto abort_keep_alive;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5278
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5279 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5280 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5281 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5282 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_BROKEN_PIPE);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5283 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5284
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5285 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5286 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5287 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5288 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5289 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5290 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5291
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5292 if (!(s->flags & SF_ERR_MASK))
5293 s->flags |= SF_ERR_SRVCL;
5294 if (!(s->flags & SF_FINST_MASK))
5295 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5296 return 0;
5297 }
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5298
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5299 /* write error to client (we don't send any message then) */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5300 else if (rep->flags & CF_WRITE_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5301 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5302 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]5303 else if (txn->flags & TX_NOT_FIRST)
5304 goto abort_keep_alive;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5305
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5306 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5307 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5308 channel_auto_close(rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5309
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5310 if (!(s->flags & SF_ERR_MASK))
5311 s->flags |= SF_ERR_CLICL;
5312 if (!(s->flags & SF_FINST_MASK))
5313 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5314
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5315 /* process_stream() will take care of the error */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5316 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5317 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5318
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5319 channel_dont_close(rep);
Willy Tarreau3f3997e2013-12-15 15:21:32 +0100[diff] [blame]5320 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5321 return 0;
5322 }
5323
5324 /* More interesting part now : we know that we have a complete
5325 * response which at least looks like HTTP. We have an indicator
5326 * of each header's length, so we can parse them quickly.
5327 */
5328
5329 if (unlikely(msg->err_pos >= 0))
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5330 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]5331
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5332 /*
5333 * 1: get the status code
5334 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5335 n = rep->buf->p[msg->sl.st.c] - '0';
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5336 if (n < 1 || n > 5)
5337 n = 0;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5338 /* when the client triggers a 4xx from the server, it's most often due
5339 * to a missing object or permission. These events should be tracked
5340 * because if they happen often, it may indicate a brute force or a
5341 * vulnerability scan.
5342 */
5343 if (n == 4)
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5344 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5345
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5346 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5347 HA_ATOMIC_ADD(&objt_server(s->target)->counters.p.http.rsp[n], 1);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5348
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]5349 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
5350 * exactly one digit "." one digit. This check may be disabled using
5351 * option accept-invalid-http-response.
5352 */
5353 if (!(s->be->options2 & PR_O2_RSPBUG_OK)) {
5354 if (msg->sl.st.v_l != 8) {
5355 msg->err_pos = 0;
5356 goto hdr_response_bad;
5357 }
5358
5359 if (rep->buf->p[4] != '/' ||
5360 !isdigit((unsigned char)rep->buf->p[5]) ||
5361 rep->buf->p[6] != '.' ||
5362 !isdigit((unsigned char)rep->buf->p[7])) {
5363 msg->err_pos = 4;
5364 goto hdr_response_bad;
5365 }
5366 }
5367
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5368 /* check if the response is HTTP/1.1 or above */
5369 if ((msg->sl.st.v_l == 8) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5370 ((rep->buf->p[5] > '1') ||
5371 ((rep->buf->p[5] == '1') && (rep->buf->p[7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5372 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5373
5374 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]5375 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]5376
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5377 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5378 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5379
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5380 txn->status = strl2ui(rep->buf->p + msg->sl.st.c, msg->sl.st.c_l);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5381
Willy Tarreau39650402010-03-15 19:44:39 +0100[diff] [blame]5382 /* Adjust server's health based on status code. Note: status codes 501
5383 * and 505 are triggered on demand by client request, so we must not
5384 * count them as server failures.
5385 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5386 if (objt_server(s->target)) {
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5387 if (txn->status >= 100 && (txn->status < 500 || txn->status == 501 || txn->status == 505))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5388 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_OK);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5389 else
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5390 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_STS);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5391 }
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5392
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5393 /*
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5394 * We may be facing a 100-continue response, or any other informational
5395 * 1xx response which is non-final, in which case this is not the right
5396 * response, and we're waiting for the next one. Let's allow this response
5397 * to go to the client and wait for the next one. There's an exception for
5398 * 101 which is used later in the code to switch protocols.
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5399 */
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5400 if (txn->status < 200 &&
5401 (txn->status == 100 || txn->status >= 102)) {
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5402 hdr_idx_init(&txn->hdr_idx);
5403 msg->next -= channel_forward(rep, msg->next);
5404 msg->msg_state = HTTP_MSG_RPBEFORE;
5405 txn->status = 0;
5406 s->logs.t_data = -1; /* was not a response yet */
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5407 FLT_STRM_CB(s, flt_http_reset(s, msg));
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5408 goto next_one;
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5409 }
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5410
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5411 /*
5412 * 2: check for cacheability.
5413 */
5414
5415 switch (txn->status) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5416 case 200:
5417 case 203:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5418 case 204:
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5419 case 206:
5420 case 300:
5421 case 301:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5422 case 404:
5423 case 405:
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5424 case 410:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5425 case 414:
5426 case 501:
Willy Tarreau83ece462017-12-21 15:13:09 +0100[diff] [blame]5427 break;
5428 default:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5429 /* RFC7231#6.1:
5430 * Responses with status codes that are defined as
5431 * cacheable by default (e.g., 200, 203, 204, 206,
5432 * 300, 301, 404, 405, 410, 414, and 501 in this
5433 * specification) can be reused by a cache with
5434 * heuristic expiration unless otherwise indicated
5435 * by the method definition or explicit cache
5436 * controls [RFC7234]; all other status codes are
5437 * not cacheable by default.
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5438 */
Willy Tarreau83ece462017-12-21 15:13:09 +0100[diff] [blame]5439 txn->flags &= ~(TX_CACHEABLE | TX_CACHE_COOK);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5440 break;
5441 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5442
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5443 /*
5444 * 3: we may need to capture headers
5445 */
5446 s->logs.logwait &= ~LW_RESP;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5447 if (unlikely((s->logs.logwait & LW_RSPHDR) && s->res_cap))
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5448 capture_headers(rep->buf->p, &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5449 s->res_cap, sess->fe->rsp_cap);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5450
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5451 /* 4: determine the transfer-length according to RFC2616 #4.4, updated
5452 * by RFC7230#3.3.3 :
5453 *
5454 * The length of a message body is determined by one of the following
5455 * (in order of precedence):
5456 *
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5457 * 1. Any 2xx (Successful) response to a CONNECT request implies that
5458 * the connection will become a tunnel immediately after the empty
5459 * line that concludes the header fields. A client MUST ignore
5460 * any Content-Length or Transfer-Encoding header fields received
5461 * in such a message. Any 101 response (Switching Protocols) is
5462 * managed in the same manner.
5463 *
5464 * 2. Any response to a HEAD request and any response with a 1xx
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5465 * (Informational), 204 (No Content), or 304 (Not Modified) status
5466 * code is always terminated by the first empty line after the
5467 * header fields, regardless of the header fields present in the
5468 * message, and thus cannot contain a message body.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5469 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5470 * 3. If a Transfer-Encoding header field is present and the chunked
5471 * transfer coding (Section 4.1) is the final encoding, the message
5472 * body length is determined by reading and decoding the chunked
5473 * data until the transfer coding indicates the data is complete.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5474 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5475 * If a Transfer-Encoding header field is present in a response and
5476 * the chunked transfer coding is not the final encoding, the
5477 * message body length is determined by reading the connection until
5478 * it is closed by the server. If a Transfer-Encoding header field
5479 * is present in a request and the chunked transfer coding is not
5480 * the final encoding, the message body length cannot be determined
5481 * reliably; the server MUST respond with the 400 (Bad Request)
5482 * status code and then close the connection.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5483 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5484 * If a message is received with both a Transfer-Encoding and a
5485 * Content-Length header field, the Transfer-Encoding overrides the
5486 * Content-Length. Such a message might indicate an attempt to
5487 * perform request smuggling (Section 9.5) or response splitting
5488 * (Section 9.4) and ought to be handled as an error. A sender MUST
5489 * remove the received Content-Length field prior to forwarding such
5490 * a message downstream.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5491 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5492 * 4. If a message is received without Transfer-Encoding and with
5493 * either multiple Content-Length header fields having differing
5494 * field-values or a single Content-Length header field having an
5495 * invalid value, then the message framing is invalid and the
5496 * recipient MUST treat it as an unrecoverable error. If this is a
5497 * request message, the server MUST respond with a 400 (Bad Request)
5498 * status code and then close the connection. If this is a response
5499 * message received by a proxy, the proxy MUST close the connection
5500 * to the server, discard the received response, and send a 502 (Bad
5501 * Gateway) response to the client. If this is a response message
5502 * received by a user agent, the user agent MUST close the
5503 * connection to the server and discard the received response.
5504 *
5505 * 5. If a valid Content-Length header field is present without
5506 * Transfer-Encoding, its decimal value defines the expected message
5507 * body length in octets. If the sender closes the connection or
5508 * the recipient times out before the indicated number of octets are
5509 * received, the recipient MUST consider the message to be
5510 * incomplete and close the connection.
5511 *
5512 * 6. If this is a request message and none of the above are true, then
5513 * the message body length is zero (no message body is present).
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5514 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5515 * 7. Otherwise, this is a response message without a declared message
5516 * body length, so the message body length is determined by the
5517 * number of octets received prior to the server closing the
5518 * connection.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5519 */
5520
5521 /* Skip parsing if no content length is possible. The response flags
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5522 * remain 0 as well as the chunk_len, which may or may not mirror
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5523 * the real header value, and we note that we know the response's length.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5524 * FIXME: should we parse anyway and return an error on chunked encoding ?
5525 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5526 if (unlikely((txn->meth == HTTP_METH_CONNECT && txn->status == 200) ||
5527 txn->status == 101)) {
5528 /* Either we've established an explicit tunnel, or we're
5529 * switching the protocol. In both cases, we're very unlikely
5530 * to understand the next protocols. We have to switch to tunnel
5531 * mode, so that we transfer the request and responses then let
5532 * this protocol pass unmodified. When we later implement specific
5533 * parsers for such protocols, we'll want to check the Upgrade
5534 * header which contains information about that protocol for
5535 * responses with status 101 (eg: see RFC2817 about TLS).
5536 */
5537 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_TUN;
5538 msg->flags |= HTTP_MSGF_XFER_LEN;
5539 goto end;
5540 }
5541
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5542 if (txn->meth == HTTP_METH_HEAD ||
5543 (txn->status >= 100 && txn->status < 200) ||
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5544 txn->status == 204 || txn->status == 304) {
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5545 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5546 goto skip_content_length;
5547 }
5548
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5549 use_close_only = 0;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5550 ctx.idx = 0;
Willy Tarreau4979d5c2015-05-01 10:06:30 +0200[diff] [blame]5551 while (http_find_header2("Transfer-Encoding", 17, rep->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5552 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5553 msg->flags |= (HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
5554 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5555 /* bad transfer-encoding (chunked followed by something else) */
5556 use_close_only = 1;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5557 msg->flags &= ~(HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5558 break;
5559 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5560 }
5561
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5562 /* Chunked responses must have their content-length removed */
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5563 ctx.idx = 0;
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]5564 if (use_close_only || (msg->flags & HTTP_MSGF_TE_CHNK)) {
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5565 while (http_find_header2("Content-Length", 14, rep->buf->p, &txn->hdr_idx, &ctx))
5566 http_remove_header2(msg, &txn->hdr_idx, &ctx);
5567 }
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]5568 else while (http_find_header2("Content-Length", 14, rep->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5569 signed long long cl;
5570
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5571 if (!ctx.vlen) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5572 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5573 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5574 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5575
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5576 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5577 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5578 goto hdr_response_bad; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5579 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5580
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5581 if (cl < 0) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5582 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5583 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5584 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5585
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5586 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5587 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5588 goto hdr_response_bad; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5589 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5590
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5591 msg->flags |= HTTP_MSGF_CNT_LEN | HTTP_MSGF_XFER_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5592 msg->body_len = msg->chunk_len = cl;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5593 }
5594
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5595 skip_content_length:
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5596 /* Now we have to check if we need to modify the Connection header.
5597 * This is more difficult on the response than it is on the request,
5598 * because we can have two different HTTP versions and we don't know
5599 * how the client will interprete a response. For instance, let's say
5600 * that the client sends a keep-alive request in HTTP/1.0 and gets an
5601 * HTTP/1.1 response without any header. Maybe it will bound itself to
5602 * HTTP/1.0 because it only knows about it, and will consider the lack
5603 * of header as a close, or maybe it knows HTTP/1.1 and can consider
5604 * the lack of header as a keep-alive. Thus we will use two flags
5605 * indicating how a request MAY be understood by the client. In case
5606 * of multiple possibilities, we'll fix the header to be explicit. If
5607 * ambiguous cases such as both close and keepalive are seen, then we
5608 * will fall back to explicit close. Note that we won't take risks with
5609 * HTTP/1.0 clients which may not necessarily understand keep-alive.
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5610 * See doc/internals/connection-header.txt for the complete matrix.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5611 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5612 if ((txn->status >= 200) && !(txn->flags & TX_HDR_CONN_PRS) &&
5613 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN ||
5614 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
5615 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5616 int to_del = 0;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5617
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5618 /* this situation happens when combining pretend-keepalive with httpclose. */
5619 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5620 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5621 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5622 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
5623
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5624 /* on unknown transfer length, we must close */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5625 if (!(msg->flags & HTTP_MSGF_XFER_LEN) &&
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5626 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
5627 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5628
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5629 /* now adjust header transformations depending on current state */
5630 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN ||
5631 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
5632 to_del |= 2; /* remove "keep-alive" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5633 if (!(msg->flags & HTTP_MSGF_VER_11))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5634 to_del |= 1; /* remove "close" for HTTP/1.0 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5635 }
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5636 else { /* SCL / KAL */
5637 to_del |= 1; /* remove "close" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5638 if (txn->req.flags & msg->flags & HTTP_MSGF_VER_11)
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5639 to_del |= 2; /* remove "keep-alive" on pure 1.1 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5640 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5641
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5642 /* Parse and remove some headers from the connection header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]5643 http_parse_connection_header(txn, msg, to_del);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5644
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5645 /* Some keep-alive responses are converted to Server-close if
5646 * the server wants to close.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5647 */
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5648 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL) {
5649 if ((txn->flags & TX_HDR_CONN_CLO) ||
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5650 (!(txn->flags & TX_HDR_CONN_KAL) && !(msg->flags & HTTP_MSGF_VER_11)))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5651 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_SCL;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]5652 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5653 }
5654
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5655 end:
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5656 /* we want to have the response time before we start processing it */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5657 s->logs.t_data = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5658
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5659 /* end of job, return OK */
5660 rep->analysers &= ~an_bit;
5661 rep->analyse_exp = TICK_ETERNITY;
5662 channel_auto_close(rep);
5663 return 1;
5664
5665 abort_keep_alive:
5666 /* A keep-alive request to the server failed on a network error.
5667 * The client is required to retry. We need to close without returning
5668 * any other information so that the client retries.
5669 */
5670 txn->status = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5671 rep->analysers &= AN_RES_FLT_END;
5672 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5673 channel_auto_close(rep);
5674 s->logs.logwait = 0;
5675 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5676 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5677 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5678 http_reply_and_close(s, txn->status, NULL);
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5679 return 0;
5680}
5681
5682/* This function performs all the processing enabled for the current response.
5683 * It normally returns 1 unless it wants to break. It relies on buffers flags,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5684 * and updates s->res.analysers. It might make sense to explode it into several
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5685 * other functions. It works like process_request (see indications above).
5686 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5687int 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]5688{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5689 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5690 struct http_txn *txn = s->txn;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5691 struct http_msg *msg = &txn->rsp;
5692 struct proxy *cur_proxy;
5693 struct cond_wordlist *wl;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]5694 enum rule_result ret = HTTP_RULE_RES_CONT;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5695
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5696 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5697 now_ms, __FUNCTION__,
5698 s,
5699 rep,
5700 rep->rex, rep->wex,
5701 rep->flags,
5702 rep->buf->i,
5703 rep->analysers);
5704
5705 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) /* we need more data */
5706 return 0;
5707
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5708 /* The stats applet needs to adjust the Connection header but we don't
5709 * apply any filter there.
5710 */
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5711 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
5712 rep->analysers &= ~an_bit;
5713 rep->analyse_exp = TICK_ETERNITY;
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5714 goto skip_filters;
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5715 }
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5716
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5717 /*
5718 * We will have to evaluate the filters.
5719 * As opposed to version 1.2, now they will be evaluated in the
5720 * filters order and not in the header order. This means that
5721 * each filter has to be validated among all headers.
5722 *
5723 * Filters are tried with ->be first, then with ->fe if it is
5724 * different from ->be.
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5725 *
5726 * Maybe we are in resume condiion. In this case I choose the
5727 * "struct proxy" which contains the rule list matching the resume
5728 * pointer. If none of theses "struct proxy" match, I initialise
5729 * the process with the first one.
5730 *
5731 * In fact, I check only correspondance betwwen the current list
5732 * pointer and the ->fe rule list. If it doesn't match, I initialize
5733 * the loop with the ->be.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5734 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5735 if (s->current_rule_list == &sess->fe->http_res_rules)
5736 cur_proxy = sess->fe;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5737 else
5738 cur_proxy = s->be;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5739 while (1) {
5740 struct proxy *rule_set = cur_proxy;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5741
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5742 /* evaluate http-response rules */
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5743 if (ret == HTTP_RULE_RES_CONT) {
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]5744 ret = http_res_get_intercept_rule(cur_proxy, &cur_proxy->http_res_rules, s);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]5745
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5746 if (ret == HTTP_RULE_RES_BADREQ)
5747 goto return_srv_prx_502;
5748
5749 if (ret == HTTP_RULE_RES_DONE) {
5750 rep->analysers &= ~an_bit;
5751 rep->analyse_exp = TICK_ETERNITY;
5752 return 1;
5753 }
5754 }
5755
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5756 /* we need to be called again. */
5757 if (ret == HTTP_RULE_RES_YIELD) {
5758 channel_dont_close(rep);
5759 return 0;
5760 }
5761
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5762 /* try headers filters */
5763 if (rule_set->rsp_exp != NULL) {
5764 if (apply_filters_to_response(s, rep, rule_set) < 0) {
5765 return_bad_resp:
5766 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5767 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5768 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_RSP);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5769 }
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5770 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5771 return_srv_prx_502:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5772 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5773 txn->status = 502;
5774 s->logs.t_data = -1; /* was not a valid response */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5775 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5776 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5777 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5778 if (!(s->flags & SF_ERR_MASK))
5779 s->flags |= SF_ERR_PRXCOND;
5780 if (!(s->flags & SF_FINST_MASK))
5781 s->flags |= SF_FINST_H;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5782 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5783 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5784 }
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5785
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5786 /* has the response been denied ? */
5787 if (txn->flags & TX_SVDENY) {
5788 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5789 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_secu, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5790
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5791 HA_ATOMIC_ADD(&s->be->be_counters.denied_resp, 1);
5792 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_resp, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5793 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]5794 HA_ATOMIC_ADD(&sess->listener->counters->denied_resp, 1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5795
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5796 goto return_srv_prx_502;
5797 }
Willy Tarreau0bbc3cf2006-10-15 14:26:02 +0200[diff] [blame]5798
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5799 /* add response headers from the rule sets in the same order */
5800 list_for_each_entry(wl, &rule_set->rsp_add, list) {
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5801 if (txn->status < 200 && txn->status != 101)
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5802 break;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5803 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]5804 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]5805 ret = acl_pass(ret);
5806 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
5807 ret = !ret;
5808 if (!ret)
5809 continue;
5810 }
5811 if (unlikely(http_header_add_tail(&txn->rsp, &txn->hdr_idx, wl->s) < 0))
5812 goto return_bad_resp;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5813 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5814
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5815 /* check whether we're already working on the frontend */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5816 if (cur_proxy == sess->fe)
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5817 break;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5818 cur_proxy = sess->fe;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5819 }
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5820
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5821 /* After this point, this anayzer can't return yield, so we can
5822 * remove the bit corresponding to this analyzer from the list.
5823 *
5824 * Note that the intermediate returns and goto found previously
5825 * reset the analyzers.
5826 */
5827 rep->analysers &= ~an_bit;
5828 rep->analyse_exp = TICK_ETERNITY;
5829
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5830 /* OK that's all we can do for 1xx responses */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5831 if (unlikely(txn->status < 200 && txn->status != 101))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5832 goto skip_header_mangling;
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5833
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5834 /*
5835 * Now check for a server cookie.
5836 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]5837 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]5838 manage_server_side_cookies(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5839
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5840 /*
5841 * Check for cache-control or pragma headers if required.
5842 */
Willy Tarreau12b32f22017-12-21 16:08:09 +0100[diff] [blame]5843 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]5844 check_response_for_cacheability(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5845
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5846 /*
5847 * Add server cookie in the response if needed
5848 */
5849 if (objt_server(s->target) && (s->be->ck_opts & PR_CK_INS) &&
5850 !((txn->flags & TX_SCK_FOUND) && (s->be->ck_opts & PR_CK_PSV)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5851 (!(s->flags & SF_DIRECT) ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5852 ((s->be->cookie_maxidle || txn->cookie_last_date) &&
5853 (!txn->cookie_last_date || (txn->cookie_last_date - date.tv_sec) < 0)) ||
5854 (s->be->cookie_maxlife && !txn->cookie_first_date) || // set the first_date
5855 (!s->be->cookie_maxlife && txn->cookie_first_date)) && // remove the first_date
5856 (!(s->be->ck_opts & PR_CK_POST) || (txn->meth == HTTP_METH_POST)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5857 !(s->flags & SF_IGNORE_PRST)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5858 /* the server is known, it's not the one the client requested, or the
5859 * cookie's last seen date needs to be refreshed. We have to
5860 * insert a set-cookie here, except if we want to insert only on POST
5861 * requests and this one isn't. Note that servers which don't have cookies
5862 * (eg: some backup servers) will return a full cookie removal request.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5863 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5864 if (!objt_server(s->target)->cookie) {
5865 chunk_printf(&trash,
5866 "Set-Cookie: %s=; Expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/",
5867 s->be->cookie_name);
5868 }
5869 else {
5870 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]5871
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5872 if (s->be->cookie_maxidle || s->be->cookie_maxlife) {
5873 /* emit last_date, which is mandatory */
5874 trash.str[trash.len++] = COOKIE_DELIM_DATE;
5875 s30tob64((date.tv_sec+3) >> 2, trash.str + trash.len);
5876 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5877
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5878 if (s->be->cookie_maxlife) {
5879 /* emit first_date, which is either the original one or
5880 * the current date.
5881 */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]5882 trash.str[trash.len++] = COOKIE_DELIM_DATE;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5883 s30tob64(txn->cookie_first_date ?
5884 txn->cookie_first_date >> 2 :
5885 (date.tv_sec+3) >> 2, trash.str + trash.len);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]5886 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5887 }
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5888 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5889 chunk_appendf(&trash, "; path=/");
5890 }
Willy Tarreau4992dd22012-05-31 21:02:17 +0200[diff] [blame]5891
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5892 if (s->be->cookie_domain)
5893 chunk_appendf(&trash, "; domain=%s", s->be->cookie_domain);
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5894
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5895 if (s->be->ck_opts & PR_CK_HTTPONLY)
5896 chunk_appendf(&trash, "; HttpOnly");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5897
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5898 if (s->be->ck_opts & PR_CK_SECURE)
5899 chunk_appendf(&trash, "; Secure");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5900
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5901 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx, trash.str, trash.len) < 0))
5902 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5903
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5904 txn->flags &= ~TX_SCK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5905 if (objt_server(s->target)->cookie && (s->flags & SF_DIRECT))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5906 /* the server did not change, only the date was updated */
5907 txn->flags |= TX_SCK_UPDATED;
5908 else
5909 txn->flags |= TX_SCK_INSERTED;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5910
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5911 /* Here, we will tell an eventual cache on the client side that we don't
5912 * want it to cache this reply because HTTP/1.0 caches also cache cookies !
5913 * Some caches understand the correct form: 'no-cache="set-cookie"', but
5914 * others don't (eg: apache <= 1.3.26). So we use 'private' instead.
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5915 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5916 if ((s->be->ck_opts & PR_CK_NOC) && (txn->flags & TX_CACHEABLE)) {
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5917
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5918 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5919
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5920 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx,
5921 "Cache-control: private", 22) < 0))
5922 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5923 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5924 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5925
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5926 /*
5927 * Check if result will be cacheable with a cookie.
5928 * We'll block the response if security checks have caught
5929 * nasty things such as a cacheable cookie.
5930 */
5931 if (((txn->flags & (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) ==
5932 (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) &&
5933 (s->be->options & PR_O_CHK_CACHE)) {
5934 /* we're in presence of a cacheable response containing
5935 * a set-cookie header. We'll block it as requested by
5936 * the 'checkcache' option, and send an alert.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5937 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5938 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5939 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_secu, 1);
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5940
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5941 HA_ATOMIC_ADD(&s->be->be_counters.denied_resp, 1);
5942 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_resp, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5943 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]5944 HA_ATOMIC_ADD(&sess->listener->counters->denied_resp, 1);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5945
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]5946 ha_alert("Blocking cacheable cookie in response from instance %s, server %s.\n",
5947 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5948 send_log(s->be, LOG_ALERT,
5949 "Blocking cacheable cookie in response from instance %s, server %s.\n",
5950 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
5951 goto return_srv_prx_502;
5952 }
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]5953
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5954 skip_filters:
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5955 /*
5956 * Adjust "Connection: close" or "Connection: keep-alive" if needed.
5957 * If an "Upgrade" token is found, the header is left untouched in order
5958 * 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]5959 * if anything but "Upgrade" is present in the Connection header. We don't
5960 * want to touch any 101 response either since it's switching to another
5961 * protocol.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5962 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5963 if ((txn->status != 101) && !(txn->flags & TX_HDR_CONN_UPG) &&
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5964 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5965 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5966 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
5967 unsigned int want_flags = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5968
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5969 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
5970 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
5971 /* we want a keep-alive response here. Keep-alive header
5972 * required if either side is not 1.1.
5973 */
5974 if (!(txn->req.flags & msg->flags & HTTP_MSGF_VER_11))
5975 want_flags |= TX_CON_KAL_SET;
5976 }
5977 else {
5978 /* we want a close response here. Close header required if
5979 * the server is 1.1, regardless of the client.
5980 */
5981 if (msg->flags & HTTP_MSGF_VER_11)
5982 want_flags |= TX_CON_CLO_SET;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5983 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5984
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5985 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
5986 http_change_connection_header(txn, msg, want_flags);
5987 }
5988
5989 skip_header_mangling:
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]5990 /* Always enter in the body analyzer */
5991 rep->analysers &= ~AN_RES_FLT_XFER_DATA;
5992 rep->analysers |= AN_RES_HTTP_XFER_BODY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5993
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5994 /* if the user wants to log as soon as possible, without counting
5995 * bytes from the server, then this is the right moment. We have
5996 * to temporarily assign bytes_out to log what we currently have.
5997 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5998 if (!LIST_ISEMPTY(&sess->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5999 s->logs.t_close = s->logs.t_data; /* to get a valid end date */
6000 s->logs.bytes_out = txn->rsp.eoh;
6001 s->do_log(s);
6002 s->logs.bytes_out = 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6003 }
Willy Tarreaue3fa6e52010-01-04 22:57:43 +0100[diff] [blame]6004 return 1;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6005}
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6006
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6007/* This function is an analyser which forwards response body (including chunk
6008 * sizes if any). It is called as soon as we must forward, even if we forward
6009 * zero byte. The only situation where it must not be called is when we're in
6010 * tunnel mode and we want to forward till the close. It's used both to forward
6011 * remaining data and to resync after end of body. It expects the msg_state to
6012 * 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]6013 * 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]6014 *
6015 * It is capable of compressing response data both in content-length mode and
6016 * in chunked mode. The state machines follows different flows depending on
6017 * whether content-length and chunked modes are used, since there are no
6018 * trailers in content-length :
6019 *
6020 * chk-mode cl-mode
6021 * ,----- BODY -----.
6022 * / \
6023 * V size > 0 V chk-mode
6024 * .--> SIZE -------------> DATA -------------> CRLF
6025 * | | size == 0 | last byte |
6026 * | v final crlf v inspected |
6027 * | TRAILERS -----------> DONE |
6028 * | |
6029 * `----------------------------------------------'
6030 *
6031 * Compression only happens in the DATA state, and must be flushed in final
6032 * states (TRAILERS/DONE) or when leaving on missing data. Normal forwarding
6033 * is performed at once on final states for all bytes parsed, or when leaving
6034 * on missing data.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6035 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6036int http_response_forward_body(struct stream *s, struct channel *res, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6037{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6038 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6039 struct http_txn *txn = s->txn;
6040 struct http_msg *msg = &s->txn->rsp;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]6041 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6042
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]6043 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
6044 now_ms, __FUNCTION__,
6045 s,
6046 res,
6047 res->rex, res->wex,
6048 res->flags,
6049 res->buf->i,
6050 res->analysers);
6051
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6052 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
6053 return 0;
6054
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6055 if ((res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) ||
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6056 ((res->flags & CF_SHUTW) && (res->to_forward || res->buf->o)) ||
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6057 !s->req.analysers) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6058 /* Output closed while we were sending data. We must abort and
6059 * wake the other side up.
6060 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6061 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6062 msg->msg_state = HTTP_MSG_ERROR;
6063 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]6064 return 1;
6065 }
6066
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6067 /* in most states, we should abort in case of early close */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6068 channel_auto_close(res);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]6069
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6070 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6071 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
6072 ? HTTP_MSG_CHUNK_SIZE
6073 : HTTP_MSG_DATA);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6074 }
6075
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6076 if (res->to_forward) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6077 /* We can't process the buffer's contents yet */
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6078 res->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6079 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6080 }
6081
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6082 if (msg->msg_state < HTTP_MSG_DONE) {
6083 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
6084 ? http_msg_forward_chunked_body(s, msg)
6085 : http_msg_forward_body(s, msg));
6086 if (!ret)
6087 goto missing_data_or_waiting;
6088 if (ret < 0)
6089 goto return_bad_res;
6090 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6091
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6092 /* other states, DONE...TUNNEL */
6093 /* for keep-alive we don't want to forward closes on DONE */
6094 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6095 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
6096 channel_dont_close(res);
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]6097
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]6098 http_resync_states(s);
6099 if (!(res->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6100 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
6101 if (res->flags & CF_SHUTW) {
6102 /* response errors are most likely due to the
6103 * client aborting the transfer. */
6104 goto aborted_xfer;
Willy Tarreau5523b322009-12-29 12:05:52 +0100[diff] [blame]6105 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6106 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6107 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]6108 goto return_bad_res;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6109 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6110 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6111 }
Willy Tarreauf51d03c2016-05-02 15:25:15 +0200[diff] [blame]6112 return 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6113
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6114 missing_data_or_waiting:
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6115 if (res->flags & CF_SHUTW)
6116 goto aborted_xfer;
6117
6118 /* stop waiting for data if the input is closed before the end. If the
6119 * client side was already closed, it means that the client has aborted,
6120 * so we don't want to count this as a server abort. Otherwise it's a
6121 * server abort.
6122 */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]6123 if (msg->msg_state < HTTP_MSG_ENDING && res->flags & CF_SHUTR) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6124 if ((s->req.flags & (CF_SHUTR|CF_SHUTW)) == (CF_SHUTR|CF_SHUTW))
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6125 goto aborted_xfer;
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6126 /* If we have some pending data, we continue the processing */
6127 if (!buffer_pending(res->buf)) {
6128 if (!(s->flags & SF_ERR_MASK))
6129 s->flags |= SF_ERR_SRVCL;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6130 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6131 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6132 HA_ATOMIC_ADD(&objt_server(s->target)->counters.srv_aborts, 1);
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6133 goto return_bad_res_stats_ok;
6134 }
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6135 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6136
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6137 /* we need to obey the req analyser, so if it leaves, we must too */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6138 if (!s->req.analysers)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]6139 goto return_bad_res;
6140
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6141 /* When TE: chunked is used, we need to get there again to parse
6142 * remaining chunks even if the server has closed, so we don't want to
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6143 * set CF_DONTCLOSE. Similarly, if keep-alive is set on the client side
6144 * or if there are filters registered on the stream, we don't want to
6145 * forward a close
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6146 */
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6147 if ((msg->flags & HTTP_MSGF_TE_CHNK) ||
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]6148 HAS_DATA_FILTERS(s, res) ||
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6149 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6150 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6151 channel_dont_close(res);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6152
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6153 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6154 * 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]6155 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]6156 * modes are already handled by the stream sock layer. We must not do
6157 * this in content-length mode because it could present the MSG_MORE
6158 * flag with the last block of forwarded data, which would cause an
6159 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6160 */
Christopher Faulet92d36382015-11-05 13:35:03 +0100[diff] [blame]6161 if ((msg->flags & HTTP_MSGF_TE_CHNK) || (msg->flags & HTTP_MSGF_COMPRESSING))
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6162 res->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6163
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6164 /* the stream handler will take care of timeouts and errors */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6165 return 0;
6166
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6167 return_bad_res: /* let's centralize all bad responses */
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6168 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6169 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6170 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6171
6172 return_bad_res_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6173 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6174 txn->rsp.msg_state = HTTP_MSG_ERROR;
Willy Tarreau148d0992010-01-10 10:21:21 +0100[diff] [blame]6175 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6176 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6177 res->analysers &= AN_RES_FLT_END;
6178 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]6179 if (objt_server(s->target))
6180 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6181
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6182 if (!(s->flags & SF_ERR_MASK))
6183 s->flags |= SF_ERR_PRXCOND;
6184 if (!(s->flags & SF_FINST_MASK))
6185 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6186 return 0;
6187
6188 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6189 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6190 txn->rsp.msg_state = HTTP_MSG_ERROR;
6191 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6192 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6193 res->analysers &= AN_RES_FLT_END;
6194 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]6195
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6196 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
6197 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6198 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6199 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6200
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6201 if (!(s->flags & SF_ERR_MASK))
6202 s->flags |= SF_ERR_CLICL;
6203 if (!(s->flags & SF_FINST_MASK))
6204 s->flags |= SF_FINST_D;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6205 return 0;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6206}
6207
6208
6209static inline int
6210http_msg_forward_body(struct stream *s, struct http_msg *msg)
6211{
6212 struct channel *chn = msg->chn;
6213 int ret;
6214
6215 /* Here we have the guarantee to be in HTTP_MSG_DATA or HTTP_MSG_ENDING state */
6216
6217 if (msg->msg_state == HTTP_MSG_ENDING)
6218 goto ending;
6219
6220 /* Neither content-length, nor transfer-encoding was found, so we must
6221 * read the body until the server connection is closed. In that case, we
6222 * eat data as they come. Of course, this happens for response only. */
6223 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6224 unsigned long long len = (chn->buf->i - msg->next);
6225 msg->chunk_len += len;
6226 msg->body_len += len;
6227 }
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6228 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6229 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6230 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6231 msg->next += ret;
6232 msg->chunk_len -= ret;
6233 if (msg->chunk_len) {
6234 /* input empty or output full */
6235 if (chn->buf->i > msg->next)
6236 chn->flags |= CF_WAKE_WRITE;
6237 goto missing_data_or_waiting;
6238 }
6239
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]6240 /* This check can only be true for a response. HTTP_MSGF_XFER_LEN is
6241 * always set for a request. */
6242 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6243 /* The server still sending data that should be filtered */
6244 if (!(chn->flags & CF_SHUTR) && HAS_DATA_FILTERS(s, chn))
6245 goto missing_data_or_waiting;
6246 }
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]6247
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6248 msg->msg_state = HTTP_MSG_ENDING;
6249
6250 ending:
6251 /* we may have some pending data starting at res->buf->p such as a last
6252 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6253 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6254 /* default_ret */ msg->next,
6255 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6256 b_adv(chn->buf, ret);
6257 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6258 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6259 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6260 if (msg->next)
6261 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6262
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6263 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
6264 /* default_ret */ 1,
6265 /* on_error */ goto error,
6266 /* on_wait */ goto waiting);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6267 msg->msg_state = HTTP_MSG_DONE;
6268 return 1;
6269
6270 missing_data_or_waiting:
6271 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6272 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6273 /* default_ret */ msg->next,
6274 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6275 b_adv(chn->buf, ret);
6276 msg->next -= ret;
6277 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6278 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6279 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6280 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6281 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6282 return 0;
6283 error:
6284 return -1;
6285}
6286
6287static inline int
6288http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg)
6289{
6290 struct channel *chn = msg->chn;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6291 unsigned int chunk;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6292 int ret;
6293
6294 /* Here we have the guarantee to be in one of the following state:
6295 * HTTP_MSG_DATA, HTTP_MSG_CHUNK_SIZE, HTTP_MSG_CHUNK_CRLF,
6296 * HTTP_MSG_TRAILERS or HTTP_MSG_ENDING. */
6297
6298 switch_states:
6299 switch (msg->msg_state) {
6300 case HTTP_MSG_DATA:
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6301 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6302 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6303 /* on_error */ goto error);
6304 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6305 msg->chunk_len -= ret;
6306 if (msg->chunk_len) {
6307 /* input empty or output full */
6308 if (chn->buf->i > msg->next)
6309 chn->flags |= CF_WAKE_WRITE;
6310 goto missing_data_or_waiting;
6311 }
6312
6313 /* nothing left to forward for this chunk*/
6314 msg->msg_state = HTTP_MSG_CHUNK_CRLF;
6315 /* fall through for HTTP_MSG_CHUNK_CRLF */
6316
6317 case HTTP_MSG_CHUNK_CRLF:
6318 /* we want the CRLF after the data */
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6319 ret = h1_skip_chunk_crlf(chn->buf, msg->next, chn->buf->i);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6320 if (ret == 0)
6321 goto missing_data_or_waiting;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6322 if (ret < 0) {
6323 msg->err_pos = chn->buf->i + ret;
6324 if (msg->err_pos < 0)
6325 msg->err_pos += chn->buf->size;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6326 goto chunk_parsing_error;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6327 }
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6328 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6329 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
6330 /* fall through for HTTP_MSG_CHUNK_SIZE */
6331
6332 case HTTP_MSG_CHUNK_SIZE:
6333 /* read the chunk size and assign it to ->chunk_len,
6334 * then set ->next to point to the body and switch to
6335 * DATA or TRAILERS state.
6336 */
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6337 ret = h1_parse_chunk_size(chn->buf, msg->next, chn->buf->i, &chunk);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6338 if (ret == 0)
6339 goto missing_data_or_waiting;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6340 if (ret < 0) {
6341 msg->err_pos = chn->buf->i + ret;
6342 if (msg->err_pos < 0)
6343 msg->err_pos += chn->buf->size;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6344 goto chunk_parsing_error;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6345 }
6346
6347 msg->sol = ret;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6348 msg->next += ret;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6349 msg->chunk_len = chunk;
6350 msg->body_len += chunk;
6351
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6352 if (msg->chunk_len) {
6353 msg->msg_state = HTTP_MSG_DATA;
6354 goto switch_states;
6355 }
6356 msg->msg_state = HTTP_MSG_TRAILERS;
6357 /* fall through for HTTP_MSG_TRAILERS */
6358
6359 case HTTP_MSG_TRAILERS:
6360 ret = http_forward_trailers(msg);
6361 if (ret < 0)
6362 goto chunk_parsing_error;
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6363 FLT_STRM_DATA_CB(s, chn, flt_http_chunk_trailers(s, msg),
6364 /* default_ret */ 1,
6365 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6366 msg->next += msg->sol;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6367 if (!ret)
6368 goto missing_data_or_waiting;
6369 break;
6370
6371 case HTTP_MSG_ENDING:
6372 goto ending;
6373
6374 default:
6375 /* This should no happen in this function */
6376 goto error;
6377 }
6378
6379 msg->msg_state = HTTP_MSG_ENDING;
6380 ending:
6381 /* we may have some pending data starting at res->buf->p such as a last
6382 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6383 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]6384 /* default_ret */ msg->next,
6385 /* on_error */ goto error);
6386 b_adv(chn->buf, ret);
6387 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6388 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6389 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6390 if (msg->next)
6391 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6392
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6393 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6394 /* default_ret */ 1,
6395 /* on_error */ goto error,
6396 /* on_wait */ goto waiting);
6397 msg->msg_state = HTTP_MSG_DONE;
6398 return 1;
6399
6400 missing_data_or_waiting:
6401 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6402 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]6403 /* default_ret */ msg->next,
6404 /* on_error */ goto error);
6405 b_adv(chn->buf, ret);
6406 msg->next -= ret;
6407 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6408 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6409 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6410 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6411 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6412 return 0;
6413
6414 chunk_parsing_error:
6415 if (msg->err_pos >= 0) {
6416 if (chn->flags & CF_ISRESP)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6417 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg,
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6418 msg->msg_state, strm_fe(s));
6419 else
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6420 http_capture_bad_message(strm_fe(s), &strm_fe(s)->invalid_req, s,
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6421 msg, msg->msg_state, s->be);
6422 }
6423 error:
6424 return -1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6425}
6426
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6427
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6428/* Iterate the same filter through all request headers.
6429 * Returns 1 if this filter can be stopped upon return, otherwise 0.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6430 * Since it can manage the switch to another backend, it updates the per-proxy
6431 * DENY stats.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6432 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6433int 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]6434{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6435 char *cur_ptr, *cur_end, *cur_next;
6436 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6437 struct http_txn *txn = s->txn;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6438 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6439 int delta;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100[diff] [blame]6440
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6441 last_hdr = 0;
6442
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6443 cur_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6444 old_idx = 0;
6445
6446 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6447 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6448 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6449 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6450 (exp->action == ACT_ALLOW ||
6451 exp->action == ACT_DENY ||
6452 exp->action == ACT_TARPIT))
6453 return 0;
6454
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6455 cur_idx = txn->hdr_idx.v[old_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6456 if (!cur_idx)
6457 break;
6458
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6459 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6460 cur_ptr = cur_next;
6461 cur_end = cur_ptr + cur_hdr->len;
6462 cur_next = cur_end + cur_hdr->cr + 1;
6463
6464 /* Now we have one header between cur_ptr and cur_end,
6465 * and the next header starts at cur_next.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6466 */
6467
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]6468 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]6469 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6470 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6471 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6472 last_hdr = 1;
6473 break;
6474
6475 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6476 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6477 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6478 break;
6479
6480 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6481 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6482 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6483 break;
6484
6485 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6486 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
6487 if (trash.len < 0)
6488 return -1;
6489
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6490 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6491 /* FIXME: if the user adds a newline in the replacement, the
6492 * index will not be recalculated for now, and the new line
6493 * will not be counted as a new header.
6494 */
6495
6496 cur_end += delta;
6497 cur_next += delta;
6498 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6499 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6500 break;
6501
6502 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6503 delta = buffer_replace2(req->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6504 cur_next += delta;
6505
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6506 http_msg_move_end(&txn->req, delta);
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6507 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
6508 txn->hdr_idx.used--;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6509 cur_hdr->len = 0;
6510 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]6511 cur_idx = old_idx;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6512 break;
6513
6514 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6515 }
6516
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6517 /* keep the link from this header to next one in case of later
6518 * removal of next header.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6519 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6520 old_idx = cur_idx;
6521 }
6522 return 0;
6523}
6524
6525
6526/* Apply the filter to the request line.
6527 * Returns 0 if nothing has been done, 1 if the filter has been applied,
6528 * or -1 if a replacement resulted in an invalid request line.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6529 * Since it can manage the switch to another backend, it updates the per-proxy
6530 * DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6531 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6532int 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]6533{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6534 char *cur_ptr, *cur_end;
6535 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6536 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6537 int delta;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6538
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6539 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6540 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6541 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6542 (exp->action == ACT_ALLOW ||
6543 exp->action == ACT_DENY ||
6544 exp->action == ACT_TARPIT))
6545 return 0;
6546 else if (exp->action == ACT_REMOVE)
6547 return 0;
6548
6549 done = 0;
6550
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6551 cur_ptr = req->buf->p;
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6552 cur_end = cur_ptr + txn->req.sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6553
6554 /* Now we have the request line between cur_ptr and cur_end */
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 done = 1;
6561 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6562
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]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 done = 1;
6566 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6567
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]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 done = 1;
6571 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6572
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6573 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6574 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
6575 if (trash.len < 0)
6576 return -1;
6577
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6578 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6579 /* FIXME: if the user adds a newline in the replacement, the
6580 * index will not be recalculated for now, and the new line
6581 * will not be counted as a new header.
6582 */
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6583
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6584 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6585 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]6586 cur_end = (char *)http_parse_reqline(&txn->req,
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6587 HTTP_MSG_RQMETH,
6588 cur_ptr, cur_end + 1,
6589 NULL, NULL);
6590 if (unlikely(!cur_end))
6591 return -1;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6592
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6593 /* we have a full request and we know that we have either a CR
6594 * or an LF at <ptr>.
6595 */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6596 txn->meth = find_http_meth(cur_ptr, txn->req.sl.rq.m_l);
6597 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]6598 /* there is no point trying this regex on headers */
6599 return 1;
6600 }
6601 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6602 return done;
6603}
Willy Tarreau97de6242006-12-27 17:18:38 +0100[diff] [blame]6604
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6605
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6606
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6607/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6608 * 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]6609 * 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]6610 * unparsable request. Since it can manage the switch to another backend, it
6611 * updates the per-proxy DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6612 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6613int apply_filters_to_request(struct stream *s, struct channel *req, struct proxy *px)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6614{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6615 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6616 struct http_txn *txn = s->txn;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6617 struct hdr_exp *exp;
6618
6619 for (exp = px->req_exp; exp; exp = exp->next) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6620 int ret;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6621
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6622 /*
6623 * The interleaving of transformations and verdicts
6624 * makes it difficult to decide to continue or stop
6625 * the evaluation.
6626 */
6627
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6628 if (txn->flags & (TX_CLDENY|TX_CLTARPIT))
6629 break;
6630
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6631 if ((txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6632 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6633 exp->action == ACT_TARPIT || exp->action == ACT_PASS))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6634 continue;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6635
6636 /* if this filter had a condition, evaluate it now and skip to
6637 * next filter if the condition does not match.
6638 */
6639 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6640 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]6641 ret = acl_pass(ret);
6642 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
6643 ret = !ret;
6644
6645 if (!ret)
6646 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6647 }
6648
6649 /* Apply the filter to the request line. */
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6650 ret = apply_filter_to_req_line(s, req, exp);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6651 if (unlikely(ret < 0))
6652 return -1;
6653
6654 if (likely(ret == 0)) {
6655 /* The filter did not match the request, it can be
6656 * iterated through all headers.
6657 */
Willy Tarreau34d4c3c2015-01-30 20:58:58 +0100[diff] [blame]6658 if (unlikely(apply_filter_to_req_headers(s, req, exp) < 0))
6659 return -1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6660 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6661 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6662 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6663}
6664
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6665
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6666/* Find the end of a cookie value contained between <s> and <e>. It works the
6667 * same way as with headers above except that the semi-colon also ends a token.
6668 * See RFC2965 for more information. Note that it requires a valid header to
6669 * return a valid result.
6670 */
6671char *find_cookie_value_end(char *s, const char *e)
6672{
6673 int quoted, qdpair;
6674
6675 quoted = qdpair = 0;
6676 for (; s < e; s++) {
6677 if (qdpair) qdpair = 0;
6678 else if (quoted) {
6679 if (*s == '\\') qdpair = 1;
6680 else if (*s == '"') quoted = 0;
6681 }
6682 else if (*s == '"') quoted = 1;
6683 else if (*s == ',' || *s == ';') return s;
6684 }
6685 return s;
6686}
6687
6688/* Delete a value in a header between delimiters <from> and <next> in buffer
6689 * <buf>. The number of characters displaced is returned, and the pointer to
6690 * the first delimiter is updated if required. The function tries as much as
6691 * possible to respect the following principles :
6692 * - replace <from> delimiter by the <next> one unless <from> points to a
6693 * colon, in which case <next> is simply removed
6694 * - set exactly one space character after the new first delimiter, unless
6695 * there are not enough characters in the block being moved to do so.
6696 * - remove unneeded spaces before the previous delimiter and after the new
6697 * one.
6698 *
6699 * It is the caller's responsibility to ensure that :
6700 * - <from> points to a valid delimiter or the colon ;
6701 * - <next> points to a valid delimiter or the final CR/LF ;
6702 * - there are non-space chars before <from> ;
6703 * - there is a CR/LF at or after <next>.
6704 */
Willy Tarreauaf819352012-08-27 22:08:00 +0200[diff] [blame]6705int del_hdr_value(struct buffer *buf, char **from, char *next)
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6706{
6707 char *prev = *from;
6708
6709 if (*prev == ':') {
6710 /* We're removing the first value, preserve the colon and add a
6711 * space if possible.
6712 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6713 if (!HTTP_IS_CRLF(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6714 next++;
6715 prev++;
6716 if (prev < next)
6717 *prev++ = ' ';
6718
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6719 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6720 next++;
6721 } else {
6722 /* Remove useless spaces before the old delimiter. */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6723 while (HTTP_IS_SPHT(*(prev-1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6724 prev--;
6725 *from = prev;
6726
6727 /* copy the delimiter and if possible a space if we're
6728 * not at the end of the line.
6729 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6730 if (!HTTP_IS_CRLF(*next)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6731 *prev++ = *next++;
6732 if (prev + 1 < next)
6733 *prev++ = ' ';
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6734 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6735 next++;
6736 }
6737 }
6738 return buffer_replace2(buf, prev, next, NULL, 0);
6739}
6740
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6741/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]6742 * Manage client-side cookie. It can impact performance by about 2% so it is
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6743 * desirable to call it only when needed. This code is quite complex because
6744 * of the multiple very crappy and ambiguous syntaxes we have to support. it
6745 * highly recommended not to touch this part without a good reason !
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6746 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6747void manage_client_side_cookies(struct stream *s, struct channel *req)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6748{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6749 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6750 struct session *sess = s->sess;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6751 int preserve_hdr;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6752 int cur_idx, old_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6753 char *hdr_beg, *hdr_end, *hdr_next, *del_from;
6754 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6755
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6756 /* Iterate through the headers, we start with the start line. */
Willy Tarreau83969f42007-01-22 08:55:47 +0100[diff] [blame]6757 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6758 hdr_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6759
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6760 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6761 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6762 int val;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6763
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6764 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6765 hdr_beg = hdr_next;
6766 hdr_end = hdr_beg + cur_hdr->len;
6767 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6768
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6769 /* We have one full header between hdr_beg and hdr_end, and the
6770 * next header starts at hdr_next. We're only interested in
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6771 * "Cookie:" headers.
6772 */
6773
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6774 val = http_header_match2(hdr_beg, hdr_end, "Cookie", 6);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6775 if (!val) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6776 old_idx = cur_idx;
6777 continue;
6778 }
6779
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6780 del_from = NULL; /* nothing to be deleted */
6781 preserve_hdr = 0; /* assume we may kill the whole header */
6782
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6783 /* Now look for cookies. Conforming to RFC2109, we have to support
6784 * attributes whose name begin with a '$', and associate them with
6785 * the right cookie, if we want to delete this cookie.
6786 * So there are 3 cases for each cookie read :
6787 * 1) it's a special attribute, beginning with a '$' : ignore it.
6788 * 2) it's a server id cookie that we *MAY* want to delete : save
6789 * some pointers on it (last semi-colon, beginning of cookie...)
6790 * 3) it's an application cookie : we *MAY* have to delete a previous
6791 * "special" cookie.
6792 * At the end of loop, if a "special" cookie remains, we may have to
6793 * remove it. If no application cookie persists in the header, we
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6794 * *MUST* delete it.
6795 *
6796 * Note: RFC2965 is unclear about the processing of spaces around
6797 * the equal sign in the ATTR=VALUE form. A careful inspection of
6798 * the RFC explicitly allows spaces before it, and not within the
6799 * tokens (attrs or values). An inspection of RFC2109 allows that
6800 * too but section 10.1.3 lets one think that spaces may be allowed
6801 * after the equal sign too, resulting in some (rare) buggy
6802 * implementations trying to do that. So let's do what servers do.
6803 * Latest ietf draft forbids spaces all around. Also, earlier RFCs
6804 * allowed quoted strings in values, with any possible character
6805 * after a backslash, including control chars and delimitors, which
6806 * causes parsing to become ambiguous. Browsers also allow spaces
6807 * within values even without quotes.
6808 *
6809 * We have to keep multiple pointers in order to support cookie
6810 * removal at the beginning, middle or end of header without
6811 * corrupting the header. All of these headers are valid :
6812 *
6813 * Cookie:NAME1=VALUE1;NAME2=VALUE2;NAME3=VALUE3\r\n
6814 * Cookie:NAME1=VALUE1;NAME2_ONLY ;NAME3=VALUE3\r\n
6815 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
6816 * | | | | | | | | |
6817 * | | | | | | | | hdr_end <--+
6818 * | | | | | | | +--> next
6819 * | | | | | | +----> val_end
6820 * | | | | | +-----------> val_beg
6821 * | | | | +--------------> equal
6822 * | | | +----------------> att_end
6823 * | | +---------------------> att_beg
6824 * | +--------------------------> prev
6825 * +--------------------------------> hdr_beg
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6826 */
6827
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6828 for (prev = hdr_beg + 6; prev < hdr_end; prev = next) {
6829 /* Iterate through all cookies on this line */
6830
6831 /* find att_beg */
6832 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6833 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6834 att_beg++;
6835
6836 /* find att_end : this is the first character after the last non
6837 * space before the equal. It may be equal to hdr_end.
6838 */
6839 equal = att_end = att_beg;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6840
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6841 while (equal < hdr_end) {
6842 if (*equal == '=' || *equal == ',' || *equal == ';')
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6843 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6844 if (HTTP_IS_SPHT(*equal++))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6845 continue;
6846 att_end = equal;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6847 }
6848
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6849 /* here, <equal> points to '=', a delimitor or the end. <att_end>
6850 * is between <att_beg> and <equal>, both may be identical.
6851 */
6852
6853 /* look for end of cookie if there is an equal sign */
6854 if (equal < hdr_end && *equal == '=') {
6855 /* look for the beginning of the value */
6856 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6857 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6858 val_beg++;
6859
6860 /* find the end of the value, respecting quotes */
6861 next = find_cookie_value_end(val_beg, hdr_end);
6862
6863 /* make val_end point to the first white space or delimitor after the value */
6864 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6865 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6866 val_end--;
6867 } else {
6868 val_beg = val_end = next = equal;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6869 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6870
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6871 /* We have nothing to do with attributes beginning with '$'. However,
6872 * they will automatically be removed if a header before them is removed,
6873 * since they're supposed to be linked together.
6874 */
6875 if (*att_beg == '$')
6876 continue;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6877
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6878 /* Ignore cookies with no equal sign */
6879 if (equal == next) {
6880 /* This is not our cookie, so we must preserve it. But if we already
6881 * scheduled another cookie for removal, we cannot remove the
6882 * complete header, but we can remove the previous block itself.
6883 */
6884 preserve_hdr = 1;
6885 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6886 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6887 val_end += delta;
6888 next += delta;
6889 hdr_end += delta;
6890 hdr_next += delta;
6891 cur_hdr->len += delta;
6892 http_msg_move_end(&txn->req, delta);
6893 prev = del_from;
6894 del_from = NULL;
6895 }
6896 continue;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6897 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6898
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6899 /* if there are spaces around the equal sign, we need to
6900 * strip them otherwise we'll get trouble for cookie captures,
6901 * or even for rewrites. Since this happens extremely rarely,
6902 * it does not hurt performance.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6903 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6904 if (unlikely(att_end != equal || val_beg > equal + 1)) {
6905 int stripped_before = 0;
6906 int stripped_after = 0;
6907
6908 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6909 stripped_before = buffer_replace2(req->buf, att_end, equal, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6910 equal += stripped_before;
6911 val_beg += stripped_before;
6912 }
6913
6914 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6915 stripped_after = buffer_replace2(req->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6916 val_beg += stripped_after;
6917 stripped_before += stripped_after;
6918 }
6919
6920 val_end += stripped_before;
6921 next += stripped_before;
6922 hdr_end += stripped_before;
6923 hdr_next += stripped_before;
6924 cur_hdr->len += stripped_before;
6925 http_msg_move_end(&txn->req, stripped_before);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6926 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6927 /* now everything is as on the diagram above */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6928
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6929 /* First, let's see if we want to capture this cookie. We check
6930 * that we don't already have a client side cookie, because we
6931 * can only capture one. Also as an optimisation, we ignore
6932 * cookies shorter than the declared name.
6933 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6934 if (sess->fe->capture_name != NULL && txn->cli_cookie == NULL &&
6935 (val_end - att_beg >= sess->fe->capture_namelen) &&
6936 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6937 int log_len = val_end - att_beg;
6938
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]6939 if ((txn->cli_cookie = pool_alloc(pool_head_capture)) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]6940 ha_alert("HTTP logging : out of memory.\n");
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6941 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6942 if (log_len > sess->fe->capture_len)
6943 log_len = sess->fe->capture_len;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6944 memcpy(txn->cli_cookie, att_beg, log_len);
6945 txn->cli_cookie[log_len] = 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6946 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6947 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6948
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6949 /* Persistence cookies in passive, rewrite or insert mode have the
6950 * following form :
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6951 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6952 * Cookie: NAME=SRV[|<lastseen>[|<firstseen>]]
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6953 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6954 * For cookies in prefix mode, the form is :
6955 *
6956 * Cookie: NAME=SRV~VALUE
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6957 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6958 if ((att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
6959 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
6960 struct server *srv = s->be->srv;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6961 char *delim;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6962
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6963 /* if we're in cookie prefix mode, we'll search the delimitor so that we
6964 * have the server ID between val_beg and delim, and the original cookie between
6965 * delim+1 and val_end. Otherwise, delim==val_end :
6966 *
6967 * Cookie: NAME=SRV; # in all but prefix modes
6968 * Cookie: NAME=SRV~OPAQUE ; # in prefix mode
6969 * | || || | |+-> next
6970 * | || || | +--> val_end
6971 * | || || +---------> delim
6972 * | || |+------------> val_beg
6973 * | || +-------------> att_end = equal
6974 * | |+-----------------> att_beg
6975 * | +------------------> prev
6976 * +-------------------------> hdr_beg
6977 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6978
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6979 if (s->be->ck_opts & PR_CK_PFX) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6980 for (delim = val_beg; delim < val_end; delim++)
6981 if (*delim == COOKIE_DELIM)
6982 break;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6983 } else {
6984 char *vbar1;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6985 delim = val_end;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6986 /* Now check if the cookie contains a date field, which would
6987 * appear after a vertical bar ('|') just after the server name
6988 * and before the delimiter.
6989 */
6990 vbar1 = memchr(val_beg, COOKIE_DELIM_DATE, val_end - val_beg);
6991 if (vbar1) {
6992 /* OK, so left of the bar is the server's cookie and
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6993 * right is the last seen date. It is a base64 encoded
6994 * 30-bit value representing the UNIX date since the
6995 * epoch in 4-second quantities.
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6996 */
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6997 int val;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6998 delim = vbar1++;
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6999 if (val_end - vbar1 >= 5) {
7000 val = b64tos30(vbar1);
7001 if (val > 0)
7002 txn->cookie_last_date = val << 2;
7003 }
7004 /* look for a second vertical bar */
7005 vbar1 = memchr(vbar1, COOKIE_DELIM_DATE, val_end - vbar1);
7006 if (vbar1 && (val_end - vbar1 > 5)) {
7007 val = b64tos30(vbar1 + 1);
7008 if (val > 0)
7009 txn->cookie_first_date = val << 2;
7010 }
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7011 }
7012 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7013
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7014 /* if the cookie has an expiration date and the proxy wants to check
7015 * it, then we do that now. We first check if the cookie is too old,
7016 * then only if it has expired. We detect strict overflow because the
7017 * time resolution here is not great (4 seconds). Cookies with dates
7018 * in the future are ignored if their offset is beyond one day. This
7019 * allows an admin to fix timezone issues without expiring everyone
7020 * and at the same time avoids keeping unwanted side effects for too
7021 * long.
7022 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7023 if (txn->cookie_first_date && s->be->cookie_maxlife &&
7024 (((signed)(date.tv_sec - txn->cookie_first_date) > (signed)s->be->cookie_maxlife) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]7025 ((signed)(txn->cookie_first_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7026 txn->flags &= ~TX_CK_MASK;
7027 txn->flags |= TX_CK_OLD;
7028 delim = val_beg; // let's pretend we have not found the cookie
7029 txn->cookie_first_date = 0;
7030 txn->cookie_last_date = 0;
7031 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7032 else if (txn->cookie_last_date && s->be->cookie_maxidle &&
7033 (((signed)(date.tv_sec - txn->cookie_last_date) > (signed)s->be->cookie_maxidle) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]7034 ((signed)(txn->cookie_last_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7035 txn->flags &= ~TX_CK_MASK;
7036 txn->flags |= TX_CK_EXPIRED;
7037 delim = val_beg; // let's pretend we have not found the cookie
7038 txn->cookie_first_date = 0;
7039 txn->cookie_last_date = 0;
7040 }
7041
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7042 /* Here, we'll look for the first running server which supports the cookie.
7043 * This allows to share a same cookie between several servers, for example
7044 * to dedicate backup servers to specific servers only.
7045 * However, to prevent clients from sticking to cookie-less backup server
7046 * when they have incidentely learned an empty cookie, we simply ignore
7047 * empty cookies and mark them as invalid.
7048 * The same behaviour is applied when persistence must be ignored.
7049 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7050 if ((delim == val_beg) || (s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7051 srv = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7052
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7053 while (srv) {
7054 if (srv->cookie && (srv->cklen == delim - val_beg) &&
7055 !memcmp(val_beg, srv->cookie, delim - val_beg)) {
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]7056 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7057 (s->be->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7058 (s->flags & SF_FORCE_PRST)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7059 /* we found the server and we can use it */
7060 txn->flags &= ~TX_CK_MASK;
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]7061 txn->flags |= (srv->cur_state != SRV_ST_STOPPED) ? TX_CK_VALID : TX_CK_DOWN;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7062 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7063 s->target = &srv->obj_type;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7064 break;
7065 } else {
7066 /* we found a server, but it's down,
7067 * mark it as such and go on in case
7068 * another one is available.
7069 */
7070 txn->flags &= ~TX_CK_MASK;
7071 txn->flags |= TX_CK_DOWN;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7072 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7073 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7074 srv = srv->next;
7075 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7076
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7077 if (!srv && !(txn->flags & (TX_CK_DOWN|TX_CK_EXPIRED|TX_CK_OLD))) {
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7078 /* no server matched this cookie or we deliberately skipped it */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7079 txn->flags &= ~TX_CK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7080 if ((s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7081 txn->flags |= TX_CK_UNUSED;
7082 else
7083 txn->flags |= TX_CK_INVALID;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7084 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7085
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7086 /* depending on the cookie mode, we may have to either :
7087 * - delete the complete cookie if we're in insert+indirect mode, so that
7088 * the server never sees it ;
7089 * - remove the server id from the cookie value, and tag the cookie as an
7090 * application cookie so that it does not get accidentely removed later,
7091 * if we're in cookie prefix mode
7092 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7093 if ((s->be->ck_opts & PR_CK_PFX) && (delim != val_end)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7094 int delta; /* negative */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7095
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7096 delta = buffer_replace2(req->buf, val_beg, delim + 1, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7097 val_end += delta;
7098 next += delta;
7099 hdr_end += delta;
7100 hdr_next += delta;
7101 cur_hdr->len += delta;
7102 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7103
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7104 del_from = NULL;
7105 preserve_hdr = 1; /* we want to keep this cookie */
7106 }
7107 else if (del_from == NULL &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7108 (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]7109 del_from = prev;
7110 }
7111 } else {
7112 /* This is not our cookie, so we must preserve it. But if we already
7113 * scheduled another cookie for removal, we cannot remove the
7114 * complete header, but we can remove the previous block itself.
7115 */
7116 preserve_hdr = 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7117
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7118 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7119 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaub8105542010-11-24 18:31:28 +0100[diff] [blame]7120 if (att_beg >= del_from)
7121 att_beg += delta;
7122 if (att_end >= del_from)
7123 att_end += delta;
7124 val_beg += delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7125 val_end += delta;
7126 next += delta;
7127 hdr_end += delta;
7128 hdr_next += delta;
7129 cur_hdr->len += delta;
7130 http_msg_move_end(&txn->req, delta);
7131 prev = del_from;
7132 del_from = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7133 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7134 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7135
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7136 /* continue with next cookie on this header line */
7137 att_beg = next;
7138 } /* for each cookie */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7139
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7140 /* There are no more cookies on this line.
7141 * We may still have one (or several) marked for deletion at the
7142 * end of the line. We must do this now in two ways :
7143 * - if some cookies must be preserved, we only delete from the
7144 * mark to the end of line ;
7145 * - if nothing needs to be preserved, simply delete the whole header
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7146 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7147 if (del_from) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7148 int delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7149 if (preserve_hdr) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7150 delta = del_hdr_value(req->buf, &del_from, hdr_end);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7151 hdr_end = del_from;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7152 cur_hdr->len += delta;
7153 } else {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7154 delta = buffer_replace2(req->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7155
7156 /* FIXME: this should be a separate function */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7157 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7158 txn->hdr_idx.used--;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7159 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7160 cur_idx = old_idx;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7161 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7162 hdr_next += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7163 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7164 }
7165
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7166 /* check next header */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7167 old_idx = cur_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7168 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7169}
7170
7171
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7172/* Iterate the same filter through all response headers contained in <rtr>.
7173 * Returns 1 if this filter can be stopped upon return, otherwise 0.
7174 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7175int 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]7176{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7177 char *cur_ptr, *cur_end, *cur_next;
7178 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7179 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7180 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7181 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7182
7183 last_hdr = 0;
7184
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7185 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7186 old_idx = 0;
7187
7188 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7189 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7190 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7191 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7192 (exp->action == ACT_ALLOW ||
7193 exp->action == ACT_DENY))
7194 return 0;
7195
7196 cur_idx = txn->hdr_idx.v[old_idx].next;
7197 if (!cur_idx)
7198 break;
7199
7200 cur_hdr = &txn->hdr_idx.v[cur_idx];
7201 cur_ptr = cur_next;
7202 cur_end = cur_ptr + cur_hdr->len;
7203 cur_next = cur_end + cur_hdr->cr + 1;
7204
7205 /* Now we have one header between cur_ptr and cur_end,
7206 * and the next header starts at cur_next.
7207 */
7208
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7209 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]7210 switch (exp->action) {
7211 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7212 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7213 last_hdr = 1;
7214 break;
7215
7216 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7217 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7218 last_hdr = 1;
7219 break;
7220
7221 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7222 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7223 if (trash.len < 0)
7224 return -1;
7225
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7226 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7227 /* FIXME: if the user adds a newline in the replacement, the
7228 * index will not be recalculated for now, and the new line
7229 * will not be counted as a new header.
7230 */
7231
7232 cur_end += delta;
7233 cur_next += delta;
7234 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7235 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7236 break;
7237
7238 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7239 delta = buffer_replace2(rtr->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7240 cur_next += delta;
7241
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7242 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7243 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7244 txn->hdr_idx.used--;
7245 cur_hdr->len = 0;
7246 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7247 cur_idx = old_idx;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7248 break;
7249
7250 }
7251 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7252
7253 /* keep the link from this header to next one in case of later
7254 * removal of next header.
7255 */
7256 old_idx = cur_idx;
7257 }
7258 return 0;
7259}
7260
7261
7262/* Apply the filter to the status line in the response buffer <rtr>.
7263 * Returns 0 if nothing has been done, 1 if the filter has been applied,
7264 * or -1 if a replacement resulted in an invalid status line.
7265 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7266int 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]7267{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7268 char *cur_ptr, *cur_end;
7269 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7270 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7271 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7272
7273
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7274 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7275 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7276 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7277 (exp->action == ACT_ALLOW ||
7278 exp->action == ACT_DENY))
7279 return 0;
7280 else if (exp->action == ACT_REMOVE)
7281 return 0;
7282
7283 done = 0;
7284
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7285 cur_ptr = rtr->buf->p;
Willy Tarreau1ba0e5f2010-06-07 13:57:32 +0200[diff] [blame]7286 cur_end = cur_ptr + txn->rsp.sl.st.l;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7287
7288 /* Now we have the status line between cur_ptr and cur_end */
7289
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7290 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]7291 switch (exp->action) {
7292 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7293 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7294 done = 1;
7295 break;
7296
7297 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7298 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7299 done = 1;
7300 break;
7301
7302 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7303 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7304 if (trash.len < 0)
7305 return -1;
7306
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7307 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7308 /* FIXME: if the user adds a newline in the replacement, the
7309 * index will not be recalculated for now, and the new line
7310 * will not be counted as a new header.
7311 */
7312
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7313 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7314 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7315 cur_end = (char *)http_parse_stsline(&txn->rsp,
Willy Tarreau02785762007-04-03 14:45:44 +0200[diff] [blame]7316 HTTP_MSG_RPVER,
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7317 cur_ptr, cur_end + 1,
7318 NULL, NULL);
7319 if (unlikely(!cur_end))
7320 return -1;
7321
7322 /* we have a full respnse and we know that we have either a CR
7323 * or an LF at <ptr>.
7324 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7325 txn->status = strl2ui(rtr->buf->p + txn->rsp.sl.st.c, txn->rsp.sl.st.c_l);
Willy Tarreau1ba0e5f2010-06-07 13:57:32 +0200[diff] [blame]7326 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]7327 /* there is no point trying this regex on headers */
7328 return 1;
7329 }
7330 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7331 return done;
7332}
7333
7334
7335
7336/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7337 * 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]7338 * Returns 0 if everything is alright, or -1 in case a replacement lead to an
7339 * unparsable response.
7340 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7341int apply_filters_to_response(struct stream *s, struct channel *rtr, struct proxy *px)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7342{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7343 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7344 struct http_txn *txn = s->txn;
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7345 struct hdr_exp *exp;
7346
7347 for (exp = px->rsp_exp; exp; exp = exp->next) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7348 int ret;
7349
7350 /*
7351 * The interleaving of transformations and verdicts
7352 * makes it difficult to decide to continue or stop
7353 * the evaluation.
7354 */
7355
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7356 if (txn->flags & TX_SVDENY)
7357 break;
7358
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7359 if ((txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7360 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
7361 exp->action == ACT_PASS)) {
7362 exp = exp->next;
7363 continue;
7364 }
7365
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7366 /* if this filter had a condition, evaluate it now and skip to
7367 * next filter if the condition does not match.
7368 */
7369 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7370 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]7371 ret = acl_pass(ret);
7372 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
7373 ret = !ret;
7374 if (!ret)
7375 continue;
7376 }
7377
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7378 /* Apply the filter to the status line. */
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7379 ret = apply_filter_to_sts_line(s, rtr, exp);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7380 if (unlikely(ret < 0))
7381 return -1;
7382
7383 if (likely(ret == 0)) {
7384 /* The filter did not match the response, it can be
7385 * iterated through all headers.
7386 */
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7387 if (unlikely(apply_filter_to_resp_headers(s, rtr, exp) < 0))
7388 return -1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7389 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7390 }
7391 return 0;
7392}
7393
7394
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7395/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]7396 * Manage server-side cookies. It can impact performance by about 2% so it is
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7397 * desirable to call it only when needed. This function is also used when we
7398 * just need to know if there is a cookie (eg: for check-cache).
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7399 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7400void manage_server_side_cookies(struct stream *s, struct channel *res)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7401{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7402 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7403 struct session *sess = s->sess;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7404 struct server *srv;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7405 int is_cookie2;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7406 int cur_idx, old_idx, delta;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7407 char *hdr_beg, *hdr_end, *hdr_next;
7408 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7409
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7410 /* Iterate through the headers.
7411 * we start with the start line.
7412 */
7413 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7414 hdr_next = res->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7415
7416 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
7417 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7418 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7419
7420 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7421 hdr_beg = hdr_next;
7422 hdr_end = hdr_beg + cur_hdr->len;
7423 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7424
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7425 /* We have one full header between hdr_beg and hdr_end, and the
7426 * next header starts at hdr_next. We're only interested in
7427 * "Set-Cookie" and "Set-Cookie2" headers.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7428 */
7429
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7430 is_cookie2 = 0;
7431 prev = hdr_beg + 10;
7432 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie", 10);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7433 if (!val) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7434 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie2", 11);
7435 if (!val) {
7436 old_idx = cur_idx;
7437 continue;
7438 }
7439 is_cookie2 = 1;
7440 prev = hdr_beg + 11;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7441 }
7442
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7443 /* OK, right now we know we have a Set-Cookie* at hdr_beg, and
7444 * <prev> points to the colon.
7445 */
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7446 txn->flags |= TX_SCK_PRESENT;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7447
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7448 /* Maybe we only wanted to see if there was a Set-Cookie (eg:
7449 * check-cache is enabled) and we are not interested in checking
7450 * them. Warning, the cookie capture is declared in the frontend.
Willy Tarreaufd39dda2008-10-17 12:01:58 +0200[diff] [blame]7451 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]7452 if (s->be->cookie_name == NULL && sess->fe->capture_name == NULL)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7453 return;
7454
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7455 /* OK so now we know we have to process this response cookie.
7456 * The format of the Set-Cookie header is slightly different
7457 * from the format of the Cookie header in that it does not
7458 * support the comma as a cookie delimiter (thus the header
7459 * cannot be folded) because the Expires attribute described in
7460 * the original Netscape's spec may contain an unquoted date
7461 * with a comma inside. We have to live with this because
7462 * many browsers don't support Max-Age and some browsers don't
7463 * support quoted strings. However the Set-Cookie2 header is
7464 * clean.
7465 *
7466 * We have to keep multiple pointers in order to support cookie
7467 * removal at the beginning, middle or end of header without
7468 * corrupting the header (in case of set-cookie2). A special
7469 * pointer, <scav> points to the beginning of the set-cookie-av
7470 * fields after the first semi-colon. The <next> pointer points
7471 * either to the end of line (set-cookie) or next unquoted comma
7472 * (set-cookie2). All of these headers are valid :
7473 *
7474 * Set-Cookie: NAME1 = VALUE 1 ; Secure; Path="/"\r\n
7475 * Set-Cookie:NAME=VALUE; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7476 * Set-Cookie: NAME = VALUE ; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7477 * Set-Cookie2: NAME1 = VALUE 1 ; Max-Age=0, NAME2=VALUE2; Discard\r\n
7478 * | | | | | | | | | |
7479 * | | | | | | | | +-> next hdr_end <--+
7480 * | | | | | | | +------------> scav
7481 * | | | | | | +--------------> val_end
7482 * | | | | | +--------------------> val_beg
7483 * | | | | +----------------------> equal
7484 * | | | +------------------------> att_end
7485 * | | +----------------------------> att_beg
7486 * | +------------------------------> prev
7487 * +-----------------------------------------> hdr_beg
7488 */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7489
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7490 for (; prev < hdr_end; prev = next) {
7491 /* Iterate through all cookies on this line */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7492
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7493 /* find att_beg */
7494 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7495 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7496 att_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7497
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7498 /* find att_end : this is the first character after the last non
7499 * space before the equal. It may be equal to hdr_end.
7500 */
7501 equal = att_end = att_beg;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7502
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7503 while (equal < hdr_end) {
7504 if (*equal == '=' || *equal == ';' || (is_cookie2 && *equal == ','))
7505 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7506 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7507 continue;
7508 att_end = equal;
7509 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7510
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7511 /* here, <equal> points to '=', a delimitor or the end. <att_end>
7512 * is between <att_beg> and <equal>, both may be identical.
7513 */
7514
7515 /* look for end of cookie if there is an equal sign */
7516 if (equal < hdr_end && *equal == '=') {
7517 /* look for the beginning of the value */
7518 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7519 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7520 val_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7521
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7522 /* find the end of the value, respecting quotes */
7523 next = find_cookie_value_end(val_beg, hdr_end);
7524
7525 /* make val_end point to the first white space or delimitor after the value */
7526 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7527 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7528 val_end--;
7529 } else {
7530 /* <equal> points to next comma, semi-colon or EOL */
7531 val_beg = val_end = next = equal;
7532 }
7533
7534 if (next < hdr_end) {
7535 /* Set-Cookie2 supports multiple cookies, and <next> points to
7536 * a colon or semi-colon before the end. So skip all attr-value
7537 * pairs and look for the next comma. For Set-Cookie, since
7538 * commas are permitted in values, skip to the end.
7539 */
7540 if (is_cookie2)
7541 next = find_hdr_value_end(next, hdr_end);
7542 else
7543 next = hdr_end;
7544 }
7545
7546 /* Now everything is as on the diagram above */
7547
7548 /* Ignore cookies with no equal sign */
7549 if (equal == val_end)
7550 continue;
7551
7552 /* If there are spaces around the equal sign, we need to
7553 * strip them otherwise we'll get trouble for cookie captures,
7554 * or even for rewrites. Since this happens extremely rarely,
7555 * it does not hurt performance.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7556 */
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7557 if (unlikely(att_end != equal || val_beg > equal + 1)) {
7558 int stripped_before = 0;
7559 int stripped_after = 0;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7560
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7561 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7562 stripped_before = buffer_replace2(res->buf, att_end, equal, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7563 equal += stripped_before;
7564 val_beg += stripped_before;
7565 }
7566
7567 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7568 stripped_after = buffer_replace2(res->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7569 val_beg += stripped_after;
7570 stripped_before += stripped_after;
7571 }
7572
7573 val_end += stripped_before;
7574 next += stripped_before;
7575 hdr_end += stripped_before;
7576 hdr_next += stripped_before;
7577 cur_hdr->len += stripped_before;
Willy Tarreau1fc1f452011-04-07 22:35:37 +0200[diff] [blame]7578 http_msg_move_end(&txn->rsp, stripped_before);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7579 }
7580
7581 /* First, let's see if we want to capture this cookie. We check
7582 * that we don't already have a server side cookie, because we
7583 * can only capture one. Also as an optimisation, we ignore
7584 * cookies shorter than the declared name.
7585 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7586 if (sess->fe->capture_name != NULL &&
Willy Tarreau3bac9ff2007-03-18 17:31:28 +0100[diff] [blame]7587 txn->srv_cookie == NULL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7588 (val_end - att_beg >= sess->fe->capture_namelen) &&
7589 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7590 int log_len = val_end - att_beg;
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]7591 if ((txn->srv_cookie = pool_alloc(pool_head_capture)) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]7592 ha_alert("HTTP logging : out of memory.\n");
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7593 }
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7594 else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7595 if (log_len > sess->fe->capture_len)
7596 log_len = sess->fe->capture_len;
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7597 memcpy(txn->srv_cookie, att_beg, log_len);
7598 txn->srv_cookie[log_len] = 0;
7599 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7600 }
7601
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7602 srv = objt_server(s->target);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7603 /* now check if we need to process it for persistence */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7604 if (!(s->flags & SF_IGNORE_PRST) &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7605 (att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
7606 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7607 /* assume passive cookie by default */
7608 txn->flags &= ~TX_SCK_MASK;
7609 txn->flags |= TX_SCK_FOUND;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7610
7611 /* If the cookie is in insert mode on a known server, we'll delete
7612 * this occurrence because we'll insert another one later.
7613 * 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]7614 * a direct access.
7615 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7616 if (s->be->ck_opts & PR_CK_PSV) {
Willy Tarreauba4c5be2010-10-23 12:46:42 +0200[diff] [blame]7617 /* The "preserve" flag was set, we don't want to touch the
7618 * server's cookie.
7619 */
7620 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7621 else if ((srv && (s->be->ck_opts & PR_CK_INS)) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7622 ((s->flags & SF_DIRECT) && (s->be->ck_opts & PR_CK_IND))) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7623 /* this cookie must be deleted */
7624 if (*prev == ':' && next == hdr_end) {
7625 /* whole header */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7626 delta = buffer_replace2(res->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7627 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7628 txn->hdr_idx.used--;
7629 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7630 cur_idx = old_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7631 hdr_next += delta;
7632 http_msg_move_end(&txn->rsp, delta);
7633 /* note: while both invalid now, <next> and <hdr_end>
7634 * are still equal, so the for() will stop as expected.
7635 */
7636 } else {
7637 /* just remove the value */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7638 int delta = del_hdr_value(res->buf, &prev, next);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7639 next = prev;
7640 hdr_end += delta;
7641 hdr_next += delta;
7642 cur_hdr->len += delta;
7643 http_msg_move_end(&txn->rsp, delta);
7644 }
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7645 txn->flags &= ~TX_SCK_MASK;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7646 txn->flags |= TX_SCK_DELETED;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7647 /* and go on with next cookie */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7648 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7649 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_RW)) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7650 /* replace bytes val_beg->val_end with the cookie name associated
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7651 * with this server since we know it.
7652 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7653 delta = buffer_replace2(res->buf, val_beg, val_end, srv->cookie, srv->cklen);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7654 next += delta;
7655 hdr_end += delta;
7656 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7657 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7658 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7659
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7660 txn->flags &= ~TX_SCK_MASK;
7661 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7662 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7663 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_PFX)) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7664 /* insert the cookie name associated with this server
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7665 * before existing cookie, and insert a delimiter between them..
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7666 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7667 delta = buffer_replace2(res->buf, val_beg, val_beg, srv->cookie, srv->cklen + 1);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7668 next += delta;
7669 hdr_end += delta;
7670 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7671 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7672 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7673
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7674 val_beg[srv->cklen] = COOKIE_DELIM;
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7675 txn->flags &= ~TX_SCK_MASK;
7676 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7677 }
7678 }
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7679 /* that's done for this cookie, check the next one on the same
7680 * line when next != hdr_end (only if is_cookie2).
7681 */
7682 }
7683 /* check next header */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7684 old_idx = cur_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7685 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7686}
7687
7688
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7689/*
Willy Tarreau0ad8e0d2017-12-22 15:03:36 +0100[diff] [blame]7690 * Parses the Cache-Control and Pragma request header fields to determine if
7691 * the request may be served from the cache and/or if it is cacheable. Updates
7692 * s->txn->flags.
7693 */
7694void check_request_for_cacheability(struct stream *s, struct channel *chn)
7695{
7696 struct http_txn *txn = s->txn;
7697 char *p1, *p2;
7698 char *cur_ptr, *cur_end, *cur_next;
7699 int pragma_found;
7700 int cc_found;
7701 int cur_idx;
7702
7703 if ((txn->flags & (TX_CACHEABLE|TX_CACHE_IGNORE)) == TX_CACHE_IGNORE)
7704 return; /* nothing more to do here */
7705
7706 cur_idx = 0;
7707 pragma_found = cc_found = 0;
7708 cur_next = chn->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
7709
7710 while ((cur_idx = txn->hdr_idx.v[cur_idx].next)) {
7711 struct hdr_idx_elem *cur_hdr;
7712 int val;
7713
7714 cur_hdr = &txn->hdr_idx.v[cur_idx];
7715 cur_ptr = cur_next;
7716 cur_end = cur_ptr + cur_hdr->len;
7717 cur_next = cur_end + cur_hdr->cr + 1;
7718
7719 /* We have one full header between cur_ptr and cur_end, and the
7720 * next header starts at cur_next.
7721 */
7722
7723 val = http_header_match2(cur_ptr, cur_end, "Pragma", 6);
7724 if (val) {
7725 if ((cur_end - (cur_ptr + val) >= 8) &&
7726 strncasecmp(cur_ptr + val, "no-cache", 8) == 0) {
7727 pragma_found = 1;
7728 continue;
7729 }
7730 }
7731
7732 val = http_header_match2(cur_ptr, cur_end, "Cache-control", 13);
7733 if (!val)
7734 continue;
7735
7736 /* OK, right now we know we have a cache-control header at cur_ptr */
7737 cc_found = 1;
7738 p1 = cur_ptr + val; /* first non-space char after 'cache-control:' */
7739
7740 if (p1 >= cur_end) /* no more info */
7741 continue;
7742
7743 /* p1 is at the beginning of the value */
7744 p2 = p1;
7745 while (p2 < cur_end && *p2 != '=' && *p2 != ',' && !isspace((unsigned char)*p2))
7746 p2++;
7747
7748 /* we have a complete value between p1 and p2. We don't check the
7749 * values after max-age, max-stale nor min-fresh, we simply don't
7750 * use the cache when they're specified.
7751 */
7752 if (((p2 - p1 == 7) && strncasecmp(p1, "max-age", 7) == 0) ||
7753 ((p2 - p1 == 8) && strncasecmp(p1, "no-cache", 8) == 0) ||
7754 ((p2 - p1 == 9) && strncasecmp(p1, "max-stale", 9) == 0) ||
7755 ((p2 - p1 == 9) && strncasecmp(p1, "min-fresh", 9) == 0)) {
7756 txn->flags |= TX_CACHE_IGNORE;
7757 continue;
7758 }
7759
7760 if ((p2 - p1 == 8) && strncasecmp(p1, "no-store", 8) == 0) {
7761 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7762 continue;
7763 }
7764 }
7765
7766 /* RFC7234#5.4:
7767 * When the Cache-Control header field is also present and
7768 * understood in a request, Pragma is ignored.
7769 * When the Cache-Control header field is not present in a
7770 * request, caches MUST consider the no-cache request
7771 * pragma-directive as having the same effect as if
7772 * "Cache-Control: no-cache" were present.
7773 */
7774 if (!cc_found && pragma_found)
7775 txn->flags |= TX_CACHE_IGNORE;
7776}
7777
7778/*
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7779 * Check if response is cacheable or not. Updates s->txn->flags.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7780 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7781void check_response_for_cacheability(struct stream *s, struct channel *rtr)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7782{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7783 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7784 char *p1, *p2;
7785
7786 char *cur_ptr, *cur_end, *cur_next;
7787 int cur_idx;
7788
Willy Tarreau12b32f22017-12-21 16:08:09 +0100[diff] [blame]7789 if (txn->status < 200) {
7790 /* do not try to cache interim responses! */
7791 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7792 return;
Willy Tarreau12b32f22017-12-21 16:08:09 +0100[diff] [blame]7793 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7794
7795 /* Iterate through the headers.
7796 * we start with the start line.
7797 */
7798 cur_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7799 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7800
7801 while ((cur_idx = txn->hdr_idx.v[cur_idx].next)) {
7802 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7803 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7804
7805 cur_hdr = &txn->hdr_idx.v[cur_idx];
7806 cur_ptr = cur_next;
7807 cur_end = cur_ptr + cur_hdr->len;
7808 cur_next = cur_end + cur_hdr->cr + 1;
7809
7810 /* We have one full header between cur_ptr and cur_end, and the
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7811 * next header starts at cur_next.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7812 */
7813
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7814 val = http_header_match2(cur_ptr, cur_end, "Pragma", 6);
7815 if (val) {
7816 if ((cur_end - (cur_ptr + val) >= 8) &&
7817 strncasecmp(cur_ptr + val, "no-cache", 8) == 0) {
7818 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7819 return;
7820 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7821 }
7822
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7823 val = http_header_match2(cur_ptr, cur_end, "Cache-control", 13);
7824 if (!val)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7825 continue;
7826
7827 /* OK, right now we know we have a cache-control header at cur_ptr */
7828
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7829 p1 = cur_ptr + val; /* first non-space char after 'cache-control:' */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7830
7831 if (p1 >= cur_end) /* no more info */
7832 continue;
7833
7834 /* p1 is at the beginning of the value */
7835 p2 = p1;
7836
Willy Tarreau8f8e6452007-06-17 21:51:38 +0200[diff] [blame]7837 while (p2 < cur_end && *p2 != '=' && *p2 != ',' && !isspace((unsigned char)*p2))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7838 p2++;
7839
7840 /* we have a complete value between p1 and p2 */
7841 if (p2 < cur_end && *p2 == '=') {
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7842 if (((cur_end - p2) > 1 && (p2 - p1 == 7) && strncasecmp(p1, "max-age=0", 9) == 0) ||
7843 ((cur_end - p2) > 1 && (p2 - p1 == 8) && strncasecmp(p1, "s-maxage=0", 10) == 0)) {
7844 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7845 continue;
7846 }
7847
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7848 /* we have something of the form no-cache="set-cookie" */
7849 if ((cur_end - p1 >= 21) &&
7850 strncasecmp(p1, "no-cache=\"set-cookie", 20) == 0
7851 && (p1[20] == '"' || p1[20] == ','))
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7852 txn->flags &= ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7853 continue;
7854 }
7855
7856 /* OK, so we know that either p2 points to the end of string or to a comma */
7857 if (((p2 - p1 == 7) && strncasecmp(p1, "private", 7) == 0) ||
Willy Tarreau5b15f902013-07-04 12:46:56 +0200[diff] [blame]7858 ((p2 - p1 == 8) && strncasecmp(p1, "no-cache", 8) == 0) ||
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7859 ((p2 - p1 == 8) && strncasecmp(p1, "no-store", 8) == 0)) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7860 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7861 return;
7862 }
7863
7864 if ((p2 - p1 == 6) && strncasecmp(p1, "public", 6) == 0) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7865 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7866 continue;
7867 }
7868 }
7869}
7870
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7871
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7872/*
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7873 * 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]7874 * for the current backend.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7875 *
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7876 * 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]7877 * uri_auth field is valid.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7878 *
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7879 * Returns 1 if stats should be provided, otherwise 0.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7880 */
Willy Tarreau295a8372011-03-10 11:25:07 +0100[diff] [blame]7881int stats_check_uri(struct stream_interface *si, struct http_txn *txn, struct proxy *backend)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7882{
7883 struct uri_auth *uri_auth = backend->uri_auth;
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]7884 struct http_msg *msg = &txn->req;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7885 const char *uri = msg->chn->buf->p+ msg->sl.rq.u;
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7886
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7887 if (!uri_auth)
7888 return 0;
7889
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7890 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]7891 return 0;
7892
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7893 /* check URI size */
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]7894 if (uri_auth->uri_len > msg->sl.rq.u_l)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7895 return 0;
7896
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]7897 if (memcmp(uri, uri_auth->uri_prefix, uri_auth->uri_len) != 0)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7898 return 0;
7899
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7900 return 1;
7901}
7902
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7903/*
7904 * Capture a bad request or response and archive it in the proxy's structure.
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7905 * By default it tries to report the error position as msg->err_pos. However if
7906 * this one is not set, it will then report msg->next, which is the last known
7907 * parsing point. The function is able to deal with wrapping buffers. It always
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7908 * displays buffers as a contiguous area starting at buf->p.
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7909 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]7910void http_capture_bad_message(struct proxy *proxy, struct error_snapshot *es, struct stream *s,
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]7911 struct http_msg *msg,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]7912 enum h1_state state, struct proxy *other_end)
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7913{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7914 struct session *sess = strm_sess(s);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7915 struct channel *chn = msg->chn;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7916 int len1, len2;
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]7917
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]7918 HA_SPIN_LOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]7919 es->len = MIN(chn->buf->i, global.tune.bufsize);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7920 len1 = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7921 len1 = MIN(len1, es->len);
7922 len2 = es->len - len1; /* remaining data if buffer wraps */
7923
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]7924 if (!es->buf)
7925 es->buf = malloc(global.tune.bufsize);
7926
7927 if (es->buf) {
7928 memcpy(es->buf, chn->buf->p, len1);
7929 if (len2)
7930 memcpy(es->buf + len1, chn->buf->data, len2);
7931 }
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7932
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7933 if (msg->err_pos >= 0)
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7934 es->pos = msg->err_pos;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7935 else
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7936 es->pos = msg->next;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7937
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7938 es->when = date; // user-visible date
7939 es->sid = s->uniq_id;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]7940 es->srv = objt_server(s->target);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7941 es->oe = other_end;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7942 if (objt_conn(sess->origin))
7943 es->src = __objt_conn(sess->origin)->addr.from;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]7944 else
7945 memset(&es->src, 0, sizeof(es->src));
7946
Willy Tarreau078272e2010-12-12 12:46:33 +0100[diff] [blame]7947 es->state = state;
Willy Tarreau10479e42010-12-12 14:00:34 +0100[diff] [blame]7948 es->ev_id = error_snapshot_id++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7949 es->b_flags = chn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7950 es->s_flags = s->flags;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7951 es->t_flags = s->txn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7952 es->m_flags = msg->flags;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7953 es->b_out = chn->buf->o;
7954 es->b_wrap = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7955 es->b_tot = chn->total;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7956 es->m_clen = msg->chunk_len;
7957 es->m_blen = msg->body_len;
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]7958 HA_SPIN_UNLOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7959}
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7960
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7961/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
7962 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
7963 * performed over the whole headers. Otherwise it must contain a valid header
7964 * context, initialised with ctx->idx=0 for the first lookup in a series. If
7965 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
7966 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
7967 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7968 * -1. The value fetch stops at commas, so this function is suited for use with
7969 * list headers.
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7970 * The return value is 0 if nothing was found, or non-zero otherwise.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7971 */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]7972unsigned int http_get_hdr(const struct http_msg *msg, const char *hname, int hlen,
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7973 struct hdr_idx *idx, int occ,
7974 struct hdr_ctx *ctx, char **vptr, int *vlen)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7975{
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7976 struct hdr_ctx local_ctx;
7977 char *ptr_hist[MAX_HDR_HISTORY];
7978 int len_hist[MAX_HDR_HISTORY];
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7979 unsigned int hist_ptr;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7980 int found;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7981
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7982 if (!ctx) {
7983 local_ctx.idx = 0;
7984 ctx = &local_ctx;
7985 }
7986
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7987 if (occ >= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7988 /* search from the beginning */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7989 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7990 occ--;
7991 if (occ <= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7992 *vptr = ctx->line + ctx->val;
7993 *vlen = ctx->vlen;
7994 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7995 }
7996 }
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7997 return 0;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7998 }
7999
8000 /* negative occurrence, we scan all the list then walk back */
8001 if (-occ > MAX_HDR_HISTORY)
8002 return 0;
8003
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8004 found = hist_ptr = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8005 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8006 ptr_hist[hist_ptr] = ctx->line + ctx->val;
8007 len_hist[hist_ptr] = ctx->vlen;
8008 if (++hist_ptr >= MAX_HDR_HISTORY)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8009 hist_ptr = 0;
8010 found++;
8011 }
8012 if (-occ > found)
8013 return 0;
8014 /* 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]8015 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
8016 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
8017 * to remain in the 0..9 range.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8018 */
Willy Tarreau67dad272013-06-12 22:27:44 +0200[diff] [blame]8019 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8020 if (hist_ptr >= MAX_HDR_HISTORY)
8021 hist_ptr -= MAX_HDR_HISTORY;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8022 *vptr = ptr_hist[hist_ptr];
8023 *vlen = len_hist[hist_ptr];
8024 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8025}
8026
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8027/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
8028 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
8029 * performed over the whole headers. Otherwise it must contain a valid header
8030 * context, initialised with ctx->idx=0 for the first lookup in a series. If
8031 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
8032 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
8033 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
8034 * -1. This function differs from http_get_hdr() in that it only returns full
8035 * line header values and does not stop at commas.
8036 * The return value is 0 if nothing was found, or non-zero otherwise.
8037 */
8038unsigned int http_get_fhdr(const struct http_msg *msg, const char *hname, int hlen,
8039 struct hdr_idx *idx, int occ,
8040 struct hdr_ctx *ctx, char **vptr, int *vlen)
8041{
8042 struct hdr_ctx local_ctx;
8043 char *ptr_hist[MAX_HDR_HISTORY];
8044 int len_hist[MAX_HDR_HISTORY];
8045 unsigned int hist_ptr;
8046 int found;
8047
8048 if (!ctx) {
8049 local_ctx.idx = 0;
8050 ctx = &local_ctx;
8051 }
8052
8053 if (occ >= 0) {
8054 /* search from the beginning */
8055 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
8056 occ--;
8057 if (occ <= 0) {
8058 *vptr = ctx->line + ctx->val;
8059 *vlen = ctx->vlen;
8060 return 1;
8061 }
8062 }
8063 return 0;
8064 }
8065
8066 /* negative occurrence, we scan all the list then walk back */
8067 if (-occ > MAX_HDR_HISTORY)
8068 return 0;
8069
8070 found = hist_ptr = 0;
8071 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
8072 ptr_hist[hist_ptr] = ctx->line + ctx->val;
8073 len_hist[hist_ptr] = ctx->vlen;
8074 if (++hist_ptr >= MAX_HDR_HISTORY)
8075 hist_ptr = 0;
8076 found++;
8077 }
8078 if (-occ > found)
8079 return 0;
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]8080
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8081 /* 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]8082 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
8083 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
8084 * to remain in the 0..9 range.
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8085 */
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]8086 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8087 if (hist_ptr >= MAX_HDR_HISTORY)
8088 hist_ptr -= MAX_HDR_HISTORY;
8089 *vptr = ptr_hist[hist_ptr];
8090 *vlen = len_hist[hist_ptr];
8091 return 1;
8092}
8093
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]8094/*
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]8095 * Print a debug line with a header. Always stop at the first CR or LF char,
8096 * so it is safe to pass it a full buffer if needed. If <err> is not NULL, an
8097 * arrow is printed after the line which contains the pointer.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8098 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8099void debug_hdr(const char *dir, struct stream *s, const char *start, const char *end)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8100{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8101 struct session *sess = strm_sess(s);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]8102 int max;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8103
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8104 chunk_printf(&trash, "%08x:%s.%s[%04x:%04x]: ", s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]8105 dir,
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]8106 objt_conn(sess->origin) ? (unsigned short)objt_conn(sess->origin)->handle.fd : -1,
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]8107 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]8108
8109 for (max = 0; start + max < end; max++)
8110 if (start[max] == '\r' || start[max] == '\n')
8111 break;
8112
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]8113 UBOUND(max, trash.size - trash.len - 3);
8114 trash.len += strlcpy2(trash.str + trash.len, start, max + 1);
8115 trash.str[trash.len++] = '\n';
Willy Tarreau89efaed2013-12-13 15:14:55 +0100[diff] [blame]8116 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8117}
8118
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8119
8120/* Allocate a new HTTP transaction for stream <s> unless there is one already.
8121 * The hdr_idx is allocated as well. In case of allocation failure, everything
8122 * allocated is freed and NULL is returned. Otherwise the new transaction is
8123 * assigned to the stream and returned.
8124 */
8125struct http_txn *http_alloc_txn(struct stream *s)
8126{
8127 struct http_txn *txn = s->txn;
8128
8129 if (txn)
8130 return txn;
8131
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8132 txn = pool_alloc(pool_head_http_txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8133 if (!txn)
8134 return txn;
8135
8136 txn->hdr_idx.size = global.tune.max_http_hdr;
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8137 txn->hdr_idx.v = pool_alloc(pool_head_hdr_idx);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8138 if (!txn->hdr_idx.v) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8139 pool_free(pool_head_http_txn, txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8140 return NULL;
8141 }
8142
8143 s->txn = txn;
8144 return txn;
8145}
8146
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8147void http_txn_reset_req(struct http_txn *txn)
8148{
8149 txn->req.flags = 0;
8150 txn->req.sol = txn->req.eol = txn->req.eoh = 0; /* relative to the buffer */
8151 txn->req.next = 0;
8152 txn->req.chunk_len = 0LL;
8153 txn->req.body_len = 0LL;
8154 txn->req.msg_state = HTTP_MSG_RQBEFORE; /* at the very beginning of the request */
8155}
8156
8157void http_txn_reset_res(struct http_txn *txn)
8158{
8159 txn->rsp.flags = 0;
8160 txn->rsp.sol = txn->rsp.eol = txn->rsp.eoh = 0; /* relative to the buffer */
8161 txn->rsp.next = 0;
8162 txn->rsp.chunk_len = 0LL;
8163 txn->rsp.body_len = 0LL;
8164 txn->rsp.msg_state = HTTP_MSG_RPBEFORE; /* at the very beginning of the response */
8165}
8166
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8167/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8168 * Initialize a new HTTP transaction for stream <s>. It is assumed that all
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8169 * the required fields are properly allocated and that we only need to (re)init
8170 * them. This should be used before processing any new request.
8171 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8172void http_init_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8173{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8174 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8175 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8176
8177 txn->flags = 0;
8178 txn->status = -1;
8179
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]8180 txn->cookie_first_date = 0;
8181 txn->cookie_last_date = 0;
8182
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8183 txn->srv_cookie = NULL;
8184 txn->cli_cookie = NULL;
8185 txn->uri = NULL;
8186
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8187 http_txn_reset_req(txn);
8188 http_txn_reset_res(txn);
8189
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8190 txn->req.chn = &s->req;
8191 txn->rsp.chn = &s->res;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8192
8193 txn->auth.method = HTTP_AUTH_UNKNOWN;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8194
8195 txn->req.err_pos = txn->rsp.err_pos = -2; /* block buggy requests/responses */
8196 if (fe->options2 & PR_O2_REQBUG_OK)
8197 txn->req.err_pos = -1; /* let buggy requests pass */
8198
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8199 if (txn->hdr_idx.v)
8200 hdr_idx_init(&txn->hdr_idx);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]8201
8202 vars_init(&s->vars_txn, SCOPE_TXN);
8203 vars_init(&s->vars_reqres, SCOPE_REQ);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8204}
8205
8206/* to be used at the end of a transaction */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8207void http_end_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8208{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8209 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8210 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8211
8212 /* these ones will have been dynamically allocated */
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8213 pool_free(pool_head_requri, txn->uri);
8214 pool_free(pool_head_capture, txn->cli_cookie);
8215 pool_free(pool_head_capture, txn->srv_cookie);
8216 pool_free(pool_head_uniqueid, s->unique_id);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8217
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]8218 s->unique_id = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8219 txn->uri = NULL;
8220 txn->srv_cookie = NULL;
8221 txn->cli_cookie = NULL;
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8222
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8223 if (s->req_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8224 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8225 for (h = fe->req_cap; h; h = h->next)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8226 pool_free(h->pool, s->req_cap[h->index]);
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8227 memset(s->req_cap, 0, fe->nb_req_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8228 }
8229
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8230 if (s->res_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8231 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8232 for (h = fe->rsp_cap; h; h = h->next)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8233 pool_free(h->pool, s->res_cap[h->index]);
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8234 memset(s->res_cap, 0, fe->nb_rsp_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8235 }
8236
Willy Tarreau6204cd92016-03-10 16:33:04 +0100[diff] [blame]8237 vars_prune(&s->vars_txn, s->sess, s);
8238 vars_prune(&s->vars_reqres, s->sess, s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8239}
8240
8241/* to be used at the end of a transaction to prepare a new one */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8242void http_reset_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8243{
8244 http_end_txn(s);
8245 http_init_txn(s);
8246
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]8247 /* reinitialise the current rule list pointer to NULL. We are sure that
8248 * any rulelist match the NULL pointer.
8249 */
8250 s->current_rule_list = NULL;
8251
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8252 s->be = strm_fe(s);
8253 s->logs.logwait = strm_fe(s)->to_log;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]8254 s->logs.level = 0;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8255 stream_del_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]8256 s->target = NULL;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8257 /* re-init store persistence */
8258 s->store_count = 0;
Willy Tarreau1f0da242014-01-25 11:01:50 +0100[diff] [blame]8259 s->uniq_id = global.req_count++;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8260
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8261 s->pend_pos = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8262
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8263 s->req.flags |= CF_READ_DONTWAIT; /* one read is usually enough */
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8264
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8265 /* We must trim any excess data from the response buffer, because we
8266 * may have blocked an invalid response from a server that we don't
8267 * want to accidentely forward once we disable the analysers, nor do
8268 * we want those data to come along with next response. A typical
8269 * example of such data would be from a buggy server responding to
8270 * a HEAD with some data, or sending more than the advertised
8271 * content-length.
8272 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8273 if (unlikely(s->res.buf->i))
8274 s->res.buf->i = 0;
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8275
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]8276 /* Now we can realign the response buffer */
8277 buffer_realign(s->res.buf);
8278
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8279 s->req.rto = strm_fe(s)->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8280 s->req.wto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8281
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8282 s->res.rto = TICK_ETERNITY;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8283 s->res.wto = strm_fe(s)->timeout.client;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8284
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8285 s->req.rex = TICK_ETERNITY;
8286 s->req.wex = TICK_ETERNITY;
8287 s->req.analyse_exp = TICK_ETERNITY;
8288 s->res.rex = TICK_ETERNITY;
8289 s->res.wex = TICK_ETERNITY;
8290 s->res.analyse_exp = TICK_ETERNITY;
Hongbo Longe39683c2017-03-10 18:41:51 +0100[diff] [blame]8291 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8292}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8293
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8294void free_http_res_rules(struct list *r)
8295{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8296 struct act_rule *tr, *pr;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8297
8298 list_for_each_entry_safe(pr, tr, r, list) {
8299 LIST_DEL(&pr->list);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8300 regex_free(&pr->arg.hdr_add.re);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8301 free(pr);
8302 }
8303}
8304
8305void free_http_req_rules(struct list *r)
8306{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8307 struct act_rule *tr, *pr;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8308
8309 list_for_each_entry_safe(pr, tr, r, list) {
8310 LIST_DEL(&pr->list);
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8311 if (pr->action == ACT_HTTP_REQ_AUTH)
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8312 free(pr->arg.auth.realm);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8313
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8314 regex_free(&pr->arg.hdr_add.re);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8315 free(pr);
8316 }
8317}
8318
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8319/* parse an "http-request" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8320struct 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]8321{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8322 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8323 struct action_kw *custom = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8324 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8325 char *error;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8326
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]8327 rule = calloc(1, sizeof(*rule));
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8328 if (!rule) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8329 ha_alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8330 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8331 }
8332
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8333 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8334 rule->action = ACT_ACTION_ALLOW;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8335 cur_arg = 1;
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8336 } else if (!strcmp(args[0], "deny") || !strcmp(args[0], "block") || !strcmp(args[0], "tarpit")) {
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8337 int code;
8338 int hc;
8339
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8340 if (!strcmp(args[0], "tarpit")) {
8341 rule->action = ACT_HTTP_REQ_TARPIT;
8342 rule->deny_status = HTTP_ERR_500;
8343 }
8344 else {
8345 rule->action = ACT_ACTION_DENY;
8346 rule->deny_status = HTTP_ERR_403;
8347 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8348 cur_arg = 1;
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8349 if (strcmp(args[cur_arg], "deny_status") == 0) {
8350 cur_arg++;
8351 if (!args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8352 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing status code.\n",
8353 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8354 goto out_err;
8355 }
8356
8357 code = atol(args[cur_arg]);
8358 cur_arg++;
8359 for (hc = 0; hc < HTTP_ERR_SIZE; hc++) {
8360 if (http_err_codes[hc] == code) {
8361 rule->deny_status = hc;
8362 break;
8363 }
8364 }
8365
8366 if (hc >= HTTP_ERR_SIZE) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8367 ha_warning("parsing [%s:%d] : status code %d not handled, using default code %d.\n",
8368 file, linenum, code, http_err_codes[rule->deny_status]);
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8369 }
8370 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8371 } else if (!strcmp(args[0], "auth")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8372 rule->action = ACT_HTTP_REQ_AUTH;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8373 cur_arg = 1;
8374
8375 while(*args[cur_arg]) {
8376 if (!strcmp(args[cur_arg], "realm")) {
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8377 rule->arg.auth.realm = strdup(args[cur_arg + 1]);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8378 cur_arg+=2;
8379 continue;
8380 } else
8381 break;
8382 }
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8383 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8384 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8385 cur_arg = 1;
8386
8387 if (!*args[cur_arg] ||
8388 (*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]8389 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer value).\n",
8390 file, linenum, args[0]);
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8391 goto out_err;
8392 }
8393 rule->arg.nice = atoi(args[cur_arg]);
8394 if (rule->arg.nice < -1024)
8395 rule->arg.nice = -1024;
8396 else if (rule->arg.nice > 1024)
8397 rule->arg.nice = 1024;
8398 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8399 } else if (!strcmp(args[0], "set-tos")) {
8400#ifdef IP_TOS
8401 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8402 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8403 cur_arg = 1;
8404
8405 if (!*args[cur_arg] ||
8406 (*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]8407 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8408 file, linenum, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8409 goto out_err;
8410 }
8411
8412 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8413 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8414 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8415 file, linenum, err, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8416 goto out_err;
8417 }
8418 cur_arg++;
8419#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8420 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]8421 goto out_err;
8422#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8423 } else if (!strcmp(args[0], "set-mark")) {
8424#ifdef SO_MARK
8425 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8426 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8427 cur_arg = 1;
8428
8429 if (!*args[cur_arg] ||
8430 (*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]8431 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8432 file, linenum, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8433 goto out_err;
8434 }
8435
8436 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8437 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8438 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8439 file, linenum, err, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8440 goto out_err;
8441 }
8442 cur_arg++;
8443 global.last_checks |= LSTCHK_NETADM;
8444#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8445 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]8446 goto out_err;
8447#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8448 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8449 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8450 cur_arg = 1;
8451
8452 if (!*args[cur_arg] ||
8453 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8454 bad_log_level:
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8455 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (log level name or 'silent').\n",
8456 file, linenum, args[0]);
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8457 goto out_err;
8458 }
8459 if (strcmp(args[cur_arg], "silent") == 0)
8460 rule->arg.loglevel = -1;
8461 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
8462 goto bad_log_level;
8463 cur_arg++;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8464 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8465 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8466 cur_arg = 1;
8467
Willy Tarreau8d1c5162013-04-03 14:13:58 +0200[diff] [blame]8468 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8469 (*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]8470 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8471 file, linenum, args[0]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8472 goto out_err;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8473 }
8474
8475 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8476 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8477 LIST_INIT(&rule->arg.hdr_add.fmt);
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]8478
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8479 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8480 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8481 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]8482 (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]8483 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8484 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8485 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8486 goto out_err;
8487 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8488 free(proxy->conf.lfs_file);
8489 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8490 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8491 cur_arg += 2;
Willy Tarreaub8543922014-06-17 18:58:26 +0200[diff] [blame]8492 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8493 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8494 cur_arg = 1;
8495
8496 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann92df3702014-06-24 11:10:00 +0200[diff] [blame]8497 (*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]8498 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 3 arguments.\n",
8499 file, linenum, args[0]);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8500 goto out_err;
8501 }
8502
8503 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8504 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8505 LIST_INIT(&rule->arg.hdr_add.fmt);
8506
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8507 error = NULL;
8508 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]8509 ha_alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8510 args[cur_arg + 1], error);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8511 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8512 goto out_err;
8513 }
8514
8515 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8516 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8517 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]8518 (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]8519 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8520 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8521 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8522 goto out_err;
8523 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8524
8525 free(proxy->conf.lfs_file);
8526 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8527 proxy->conf.lfs_line = proxy->conf.args.line;
8528 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8529 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8530 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8531 cur_arg = 1;
8532
8533 if (!*args[cur_arg] ||
8534 (*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]8535 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8536 file, linenum, args[0]);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8537 goto out_err;
8538 }
8539
8540 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8541 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8542
8543 proxy->conf.args.ctx = ARGC_HRQ;
8544 free(proxy->conf.lfs_file);
8545 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8546 proxy->conf.lfs_line = proxy->conf.args.line;
8547 cur_arg += 1;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]8548 } else if (strncmp(args[0], "track-sc", 8) == 0) {
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8549 struct sample_expr *expr;
8550 unsigned int where;
8551 char *err = NULL;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]8552 unsigned int tsc_num;
8553 const char *tsc_num_str;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8554
8555 cur_arg = 1;
8556 proxy->conf.args.ctx = ARGC_TRK;
8557
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]8558 tsc_num_str = &args[0][8];
8559 if (cfg_parse_track_sc_num(&tsc_num, tsc_num_str, tsc_num_str + strlen(tsc_num_str), &err) == -1) {
8560 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8561 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
8562 free(err);
8563 goto out_err;
8564 }
8565
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8566 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
8567 if (!expr) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8568 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8569 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8570 free(err);
8571 goto out_err;
8572 }
8573
8574 where = 0;
8575 if (proxy->cap & PR_CAP_FE)
8576 where |= SMP_VAL_FE_HRQ_HDR;
8577 if (proxy->cap & PR_CAP_BE)
8578 where |= SMP_VAL_BE_HRQ_HDR;
8579
8580 if (!(expr->fetch->val & where)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8581 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule :"
8582 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
8583 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
8584 args[cur_arg-1], sample_src_names(expr->fetch->use));
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8585 free(expr);
8586 goto out_err;
8587 }
8588
8589 if (strcmp(args[cur_arg], "table") == 0) {
8590 cur_arg++;
8591 if (!args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8592 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing table name.\n",
8593 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8594 free(expr);
8595 goto out_err;
8596 }
8597 /* we copy the table name for now, it will be resolved later */
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8598 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8599 cur_arg++;
8600 }
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8601 rule->arg.trk_ctr.expr = expr;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]8602 rule->action = ACT_ACTION_TRK_SC0 + tsc_num;
Christopher Faulet78880fb2017-09-18 14:43:55 +0200[diff] [blame]8603 rule->check_ptr = check_trk_action;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8604 } else if (strcmp(args[0], "redirect") == 0) {
8605 struct redirect_rule *redir;
Willy Tarreau6d4890c2013-11-18 18:04:25 +0100[diff] [blame]8606 char *errmsg = NULL;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8607
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]8608 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]8609 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8610 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8611 goto out_err;
8612 }
8613
8614 /* this redirect rule might already contain a parsed condition which
8615 * we'll pass to the http-request rule.
8616 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8617 rule->action = ACT_HTTP_REDIR;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8618 rule->arg.redir = redir;
8619 rule->cond = redir->cond;
8620 redir->cond = NULL;
8621 cur_arg = 2;
8622 return rule;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8623 } else if (strncmp(args[0], "add-acl", 7) == 0) {
8624 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8625 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8626 /*
8627 * '+ 8' for 'add-acl('
8628 * '- 9' for 'add-acl(' + trailing ')'
8629 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8630 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8631
8632 cur_arg = 1;
8633
8634 if (!*args[cur_arg] ||
8635 (*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]8636 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8637 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8638 goto out_err;
8639 }
8640
8641 LIST_INIT(&rule->arg.map.key);
8642 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8643 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8644 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]8645 (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]8646 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8647 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8648 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8649 goto out_err;
8650 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8651 free(proxy->conf.lfs_file);
8652 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8653 proxy->conf.lfs_line = proxy->conf.args.line;
8654 cur_arg += 1;
8655 } else if (strncmp(args[0], "del-acl", 7) == 0) {
8656 /* http-request del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8657 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8658 /*
8659 * '+ 8' for 'del-acl('
8660 * '- 9' for 'del-acl(' + trailing ')'
8661 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8662 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8663
8664 cur_arg = 1;
8665
8666 if (!*args[cur_arg] ||
8667 (*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]8668 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8669 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8670 goto out_err;
8671 }
8672
8673 LIST_INIT(&rule->arg.map.key);
8674 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8675 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8676 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]8677 (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]8678 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8679 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8680 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8681 goto out_err;
8682 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8683 free(proxy->conf.lfs_file);
8684 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8685 proxy->conf.lfs_line = proxy->conf.args.line;
8686 cur_arg += 1;
8687 } else if (strncmp(args[0], "del-map", 7) == 0) {
8688 /* http-request del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8689 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8690 /*
8691 * '+ 8' for 'del-map('
8692 * '- 9' for 'del-map(' + trailing ')'
8693 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8694 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8695
8696 cur_arg = 1;
8697
8698 if (!*args[cur_arg] ||
8699 (*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]8700 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8701 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8702 goto out_err;
8703 }
8704
8705 LIST_INIT(&rule->arg.map.key);
8706 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8707 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8708 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]8709 (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]8710 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8711 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8712 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8713 goto out_err;
8714 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8715 free(proxy->conf.lfs_file);
8716 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8717 proxy->conf.lfs_line = proxy->conf.args.line;
8718 cur_arg += 1;
8719 } else if (strncmp(args[0], "set-map", 7) == 0) {
8720 /* http-request set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8721 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8722 /*
8723 * '+ 8' for 'set-map('
8724 * '- 9' for 'set-map(' + trailing ')'
8725 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8726 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8727
8728 cur_arg = 1;
8729
8730 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8731 (*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]8732 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8733 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8734 goto out_err;
8735 }
8736
8737 LIST_INIT(&rule->arg.map.key);
8738 LIST_INIT(&rule->arg.map.value);
8739 proxy->conf.args.ctx = ARGC_HRQ;
8740
8741 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8742 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8743 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]8744 (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]8745 ha_alert("parsing [%s:%d]: 'http-request %s' key: %s.\n",
8746 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8747 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8748 goto out_err;
8749 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8750
8751 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8752 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8753 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]8754 (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]8755 ha_alert("parsing [%s:%d]: 'http-request %s' pattern: %s.\n",
8756 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8757 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8758 goto out_err;
8759 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8760 free(proxy->conf.lfs_file);
8761 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8762 proxy->conf.lfs_line = proxy->conf.args.line;
8763
8764 cur_arg += 2;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8765 } else if (((custom = action_http_req_custom(args[0])) != NULL)) {
8766 char *errmsg = NULL;
8767 cur_arg = 1;
8768 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]8769 rule->from = ACT_F_HTTP_REQ;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]8770 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]8771 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8772 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8773 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8774 free(errmsg);
8775 goto out_err;
8776 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8777 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]8778 action_build_list(&http_req_keywords.list, &trash);
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8779 ha_alert("parsing [%s:%d]: 'http-request' expects 'allow', 'deny', 'auth', 'redirect', "
8780 "'tarpit', 'add-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
8781 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', 'track-sc*'"
8782 "%s%s, but got '%s'%s.\n",
8783 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8784 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8785 }
8786
8787 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
8788 struct acl_cond *cond;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]8789 char *errmsg = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8790
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]8791 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]8792 ha_alert("parsing [%s:%d] : error detected while parsing an 'http-request %s' condition : %s.\n",
8793 file, linenum, args[0], errmsg);
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]8794 free(errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8795 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8796 }
8797 rule->cond = cond;
8798 }
8799 else if (*args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8800 ha_alert("parsing [%s:%d]: 'http-request %s' expects 'realm' for 'auth' or"
8801 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
8802 file, linenum, args[0], args[cur_arg]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8803 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8804 }
8805
8806 return rule;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8807 out_err:
8808 free(rule);
8809 return NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8810}
8811
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8812/* parse an "http-respose" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8813struct 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]8814{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8815 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8816 struct action_kw *custom = NULL;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8817 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8818 char *error;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8819
8820 rule = calloc(1, sizeof(*rule));
8821 if (!rule) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8822 ha_alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8823 goto out_err;
8824 }
8825
8826 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8827 rule->action = ACT_ACTION_ALLOW;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8828 cur_arg = 1;
8829 } else if (!strcmp(args[0], "deny")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8830 rule->action = ACT_ACTION_DENY;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8831 cur_arg = 1;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8832 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8833 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8834 cur_arg = 1;
8835
8836 if (!*args[cur_arg] ||
8837 (*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]8838 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer value).\n",
8839 file, linenum, args[0]);
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8840 goto out_err;
8841 }
8842 rule->arg.nice = atoi(args[cur_arg]);
8843 if (rule->arg.nice < -1024)
8844 rule->arg.nice = -1024;
8845 else if (rule->arg.nice > 1024)
8846 rule->arg.nice = 1024;
8847 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8848 } else if (!strcmp(args[0], "set-tos")) {
8849#ifdef IP_TOS
8850 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8851 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8852 cur_arg = 1;
8853
8854 if (!*args[cur_arg] ||
8855 (*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]8856 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8857 file, linenum, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8858 goto out_err;
8859 }
8860
8861 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8862 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8863 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8864 file, linenum, err, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8865 goto out_err;
8866 }
8867 cur_arg++;
8868#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8869 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]8870 goto out_err;
8871#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8872 } else if (!strcmp(args[0], "set-mark")) {
8873#ifdef SO_MARK
8874 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8875 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8876 cur_arg = 1;
8877
8878 if (!*args[cur_arg] ||
8879 (*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]8880 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8881 file, linenum, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8882 goto out_err;
8883 }
8884
8885 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8886 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8887 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8888 file, linenum, err, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8889 goto out_err;
8890 }
8891 cur_arg++;
8892 global.last_checks |= LSTCHK_NETADM;
8893#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8894 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]8895 goto out_err;
8896#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8897 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8898 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8899 cur_arg = 1;
8900
8901 if (!*args[cur_arg] ||
8902 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8903 bad_log_level:
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8904 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (log level name or 'silent').\n",
8905 file, linenum, args[0]);
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8906 goto out_err;
8907 }
8908 if (strcmp(args[cur_arg], "silent") == 0)
8909 rule->arg.loglevel = -1;
Ruoshan Huangdd016782016-06-15 22:16:03 +0800[diff] [blame]8910 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8911 goto bad_log_level;
8912 cur_arg++;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8913 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8914 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8915 cur_arg = 1;
8916
8917 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8918 (*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]8919 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
8920 file, linenum, args[0]);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8921 goto out_err;
8922 }
8923
8924 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8925 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8926 LIST_INIT(&rule->arg.hdr_add.fmt);
8927
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8928 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8929 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8930 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]8931 (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]8932 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8933 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8934 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8935 goto out_err;
8936 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8937 free(proxy->conf.lfs_file);
8938 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8939 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8940 cur_arg += 2;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8941 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8942 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8943 cur_arg = 1;
8944
8945 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann12cb00b2014-08-08 17:29:06 +0200[diff] [blame]8946 (*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]8947 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 3 arguments.\n",
8948 file, linenum, args[0]);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8949 goto out_err;
8950 }
8951
8952 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8953 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8954 LIST_INIT(&rule->arg.hdr_add.fmt);
8955
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8956 error = NULL;
8957 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]8958 ha_alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8959 args[cur_arg + 1], error);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8960 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8961 goto out_err;
8962 }
8963
8964 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8965 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8966 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]8967 (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]8968 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8969 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8970 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8971 goto out_err;
8972 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8973
8974 free(proxy->conf.lfs_file);
8975 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8976 proxy->conf.lfs_line = proxy->conf.args.line;
8977 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8978 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8979 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8980 cur_arg = 1;
8981
8982 if (!*args[cur_arg] ||
8983 (*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]8984 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8985 file, linenum, args[0]);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8986 goto out_err;
8987 }
8988
8989 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8990 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8991
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8992 proxy->conf.args.ctx = ARGC_HRS;
8993 free(proxy->conf.lfs_file);
8994 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8995 proxy->conf.lfs_line = proxy->conf.args.line;
8996 cur_arg += 1;
8997 } else if (strncmp(args[0], "add-acl", 7) == 0) {
8998 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8999 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9000 /*
9001 * '+ 8' for 'add-acl('
9002 * '- 9' for 'add-acl(' + trailing ')'
9003 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9004 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9005
9006 cur_arg = 1;
9007
9008 if (!*args[cur_arg] ||
9009 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9010 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9011 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9012 goto out_err;
9013 }
9014
9015 LIST_INIT(&rule->arg.map.key);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9016 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9017 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9018 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]9019 (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]9020 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9021 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9022 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9023 goto out_err;
9024 }
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9025 free(proxy->conf.lfs_file);
9026 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9027 proxy->conf.lfs_line = proxy->conf.args.line;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9028
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9029 cur_arg += 1;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9030 } else if (strncmp(args[0], "del-acl", 7) == 0) {
9031 /* http-response del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9032 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9033 /*
9034 * '+ 8' for 'del-acl('
9035 * '- 9' for 'del-acl(' + trailing ')'
9036 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9037 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9038
9039 cur_arg = 1;
9040
9041 if (!*args[cur_arg] ||
9042 (*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]9043 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9044 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9045 goto out_err;
9046 }
9047
9048 LIST_INIT(&rule->arg.map.key);
9049 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9050 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9051 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]9052 (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]9053 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9054 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9055 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9056 goto out_err;
9057 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9058 free(proxy->conf.lfs_file);
9059 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9060 proxy->conf.lfs_line = proxy->conf.args.line;
9061 cur_arg += 1;
9062 } else if (strncmp(args[0], "del-map", 7) == 0) {
9063 /* http-response del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9064 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9065 /*
9066 * '+ 8' for 'del-map('
9067 * '- 9' for 'del-map(' + trailing ')'
9068 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9069 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9070
9071 cur_arg = 1;
9072
9073 if (!*args[cur_arg] ||
9074 (*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]9075 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9076 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9077 goto out_err;
9078 }
9079
9080 LIST_INIT(&rule->arg.map.key);
9081 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9082 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9083 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]9084 (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]9085 ha_alert("parsing [%s:%d]: 'http-response %s' %s.\n",
9086 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9087 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9088 goto out_err;
9089 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9090 free(proxy->conf.lfs_file);
9091 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9092 proxy->conf.lfs_line = proxy->conf.args.line;
9093 cur_arg += 1;
9094 } else if (strncmp(args[0], "set-map", 7) == 0) {
9095 /* http-response set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9096 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9097 /*
9098 * '+ 8' for 'set-map('
9099 * '- 9' for 'set-map(' + trailing ')'
9100 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9101 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9102
9103 cur_arg = 1;
9104
9105 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9106 (*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]9107 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
9108 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9109 goto out_err;
9110 }
9111
9112 LIST_INIT(&rule->arg.map.key);
9113 LIST_INIT(&rule->arg.map.value);
9114
9115 proxy->conf.args.ctx = ARGC_HRS;
9116
9117 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9118 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9119 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]9120 (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]9121 ha_alert("parsing [%s:%d]: 'http-response %s' name: %s.\n",
9122 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9123 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9124 goto out_err;
9125 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9126
9127 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9128 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9129 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]9130 (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]9131 ha_alert("parsing [%s:%d]: 'http-response %s' value: %s.\n",
9132 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9133 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9134 goto out_err;
9135 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9136
9137 free(proxy->conf.lfs_file);
9138 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9139 proxy->conf.lfs_line = proxy->conf.args.line;
9140
9141 cur_arg += 2;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9142 } else if (strcmp(args[0], "redirect") == 0) {
9143 struct redirect_rule *redir;
9144 char *errmsg = NULL;
9145
9146 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]9147 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9148 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9149 goto out_err;
9150 }
9151
9152 /* this redirect rule might already contain a parsed condition which
9153 * we'll pass to the http-request rule.
9154 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9155 rule->action = ACT_HTTP_REDIR;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9156 rule->arg.redir = redir;
9157 rule->cond = redir->cond;
9158 redir->cond = NULL;
9159 cur_arg = 2;
9160 return rule;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]9161 } else if (strncmp(args[0], "track-sc", 8) == 0) {
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9162 struct sample_expr *expr;
9163 unsigned int where;
9164 char *err = NULL;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]9165 unsigned int tsc_num;
9166 const char *tsc_num_str;
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9167
9168 cur_arg = 1;
9169 proxy->conf.args.ctx = ARGC_TRK;
9170
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]9171 tsc_num_str = &args[0][8];
9172 if (cfg_parse_track_sc_num(&tsc_num, tsc_num_str, tsc_num_str + strlen(tsc_num_str), &err) == -1) {
9173 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9174 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
9175 free(err);
9176 goto out_err;
9177 }
9178
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9179 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
9180 if (!expr) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9181 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9182 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9183 free(err);
9184 goto out_err;
9185 }
9186
9187 where = 0;
9188 if (proxy->cap & PR_CAP_FE)
9189 where |= SMP_VAL_FE_HRS_HDR;
9190 if (proxy->cap & PR_CAP_BE)
9191 where |= SMP_VAL_BE_HRS_HDR;
9192
9193 if (!(expr->fetch->val & where)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9194 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule :"
9195 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
9196 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
9197 args[cur_arg-1], sample_src_names(expr->fetch->use));
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9198 free(expr);
9199 goto out_err;
9200 }
9201
9202 if (strcmp(args[cur_arg], "table") == 0) {
9203 cur_arg++;
9204 if (!args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9205 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : missing table name.\n",
9206 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9207 free(expr);
9208 goto out_err;
9209 }
9210 /* we copy the table name for now, it will be resolved later */
9211 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
9212 cur_arg++;
9213 }
9214 rule->arg.trk_ctr.expr = expr;
Frédéric Lécaillea41d5312018-01-29 12:05:07 +0100[diff] [blame]9215 rule->action = ACT_ACTION_TRK_SC0 + tsc_num;
Christopher Faulet78880fb2017-09-18 14:43:55 +0200[diff] [blame]9216 rule->check_ptr = check_trk_action;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9217 } else if (((custom = action_http_res_custom(args[0])) != NULL)) {
9218 char *errmsg = NULL;
9219 cur_arg = 1;
9220 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]9221 rule->from = ACT_F_HTTP_RES;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]9222 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]9223 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9224 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9225 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9226 free(errmsg);
9227 goto out_err;
9228 }
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9229 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9230 action_build_list(&http_res_keywords.list, &trash);
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9231 ha_alert("parsing [%s:%d]: 'http-response' expects 'allow', 'deny', 'redirect', "
9232 "'add-header', 'del-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
9233 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', 'track-sc*'"
9234 "%s%s, but got '%s'%s.\n",
9235 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9236 goto out_err;
9237 }
9238
9239 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
9240 struct acl_cond *cond;
9241 char *errmsg = NULL;
9242
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]9243 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]9244 ha_alert("parsing [%s:%d] : error detected while parsing an 'http-response %s' condition : %s.\n",
9245 file, linenum, args[0], errmsg);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9246 free(errmsg);
9247 goto out_err;
9248 }
9249 rule->cond = cond;
9250 }
9251 else if (*args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9252 ha_alert("parsing [%s:%d]: 'http-response %s' expects"
9253 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
9254 file, linenum, args[0], args[cur_arg]);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9255 goto out_err;
9256 }
9257
9258 return rule;
9259 out_err:
9260 free(rule);
9261 return NULL;
9262}
9263
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9264/* Parses a redirect rule. Returns the redirect rule on success or NULL on error,
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9265 * 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]9266 * dynamic log-format rule instead of a static string. Parameter <dir> indicates
9267 * the direction of the rule, and equals 0 for request, non-zero for responses.
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9268 */
9269struct redirect_rule *http_parse_redirect_rule(const char *file, int linenum, struct proxy *curproxy,
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9270 const char **args, char **errmsg, int use_fmt, int dir)
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9271{
9272 struct redirect_rule *rule;
9273 int cur_arg;
9274 int type = REDIRECT_TYPE_NONE;
9275 int code = 302;
9276 const char *destination = NULL;
9277 const char *cookie = NULL;
9278 int cookie_set = 0;
9279 unsigned int flags = REDIRECT_FLAG_NONE;
9280 struct acl_cond *cond = NULL;
9281
9282 cur_arg = 0;
9283 while (*(args[cur_arg])) {
9284 if (strcmp(args[cur_arg], "location") == 0) {
9285 if (!*args[cur_arg + 1])
9286 goto missing_arg;
9287
9288 type = REDIRECT_TYPE_LOCATION;
9289 cur_arg++;
9290 destination = args[cur_arg];
9291 }
9292 else if (strcmp(args[cur_arg], "prefix") == 0) {
9293 if (!*args[cur_arg + 1])
9294 goto missing_arg;
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9295 type = REDIRECT_TYPE_PREFIX;
9296 cur_arg++;
9297 destination = args[cur_arg];
9298 }
9299 else if (strcmp(args[cur_arg], "scheme") == 0) {
9300 if (!*args[cur_arg + 1])
9301 goto missing_arg;
9302
9303 type = REDIRECT_TYPE_SCHEME;
9304 cur_arg++;
9305 destination = args[cur_arg];
9306 }
9307 else if (strcmp(args[cur_arg], "set-cookie") == 0) {
9308 if (!*args[cur_arg + 1])
9309 goto missing_arg;
9310
9311 cur_arg++;
9312 cookie = args[cur_arg];
9313 cookie_set = 1;
9314 }
9315 else if (strcmp(args[cur_arg], "clear-cookie") == 0) {
9316 if (!*args[cur_arg + 1])
9317 goto missing_arg;
9318
9319 cur_arg++;
9320 cookie = args[cur_arg];
9321 cookie_set = 0;
9322 }
9323 else if (strcmp(args[cur_arg], "code") == 0) {
9324 if (!*args[cur_arg + 1])
9325 goto missing_arg;
9326
9327 cur_arg++;
9328 code = atol(args[cur_arg]);
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9329 if (code < 301 || code > 308 || (code > 303 && code < 307)) {
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9330 memprintf(errmsg,
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9331 "'%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]9332 args[cur_arg - 1], args[cur_arg]);
9333 return NULL;
9334 }
9335 }
9336 else if (!strcmp(args[cur_arg],"drop-query")) {
9337 flags |= REDIRECT_FLAG_DROP_QS;
9338 }
9339 else if (!strcmp(args[cur_arg],"append-slash")) {
9340 flags |= REDIRECT_FLAG_APPEND_SLASH;
9341 }
9342 else if (strcmp(args[cur_arg], "if") == 0 ||
9343 strcmp(args[cur_arg], "unless") == 0) {
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]9344 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]9345 if (!cond) {
9346 memprintf(errmsg, "error in condition: %s", *errmsg);
9347 return NULL;
9348 }
9349 break;
9350 }
9351 else {
9352 memprintf(errmsg,
9353 "expects 'code', 'prefix', 'location', 'scheme', 'set-cookie', 'clear-cookie', 'drop-query' or 'append-slash' (was '%s')",
9354 args[cur_arg]);
9355 return NULL;
9356 }
9357 cur_arg++;
9358 }
9359
9360 if (type == REDIRECT_TYPE_NONE) {
9361 memprintf(errmsg, "redirection type expected ('prefix', 'location', or 'scheme')");
9362 return NULL;
9363 }
9364
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9365 if (dir && type != REDIRECT_TYPE_LOCATION) {
9366 memprintf(errmsg, "response only supports redirect type 'location'");
9367 return NULL;
9368 }
9369
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]9370 rule = calloc(1, sizeof(*rule));
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9371 rule->cond = cond;
Willy Tarreau60e08382013-12-03 00:48:45 +0100[diff] [blame]9372 LIST_INIT(&rule->rdr_fmt);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9373
9374 if (!use_fmt) {
9375 /* old-style static redirect rule */
9376 rule->rdr_str = strdup(destination);
9377 rule->rdr_len = strlen(destination);
9378 }
9379 else {
9380 /* log-format based redirect rule */
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9381
9382 /* Parse destination. Note that in the REDIRECT_TYPE_PREFIX case,
9383 * if prefix == "/", we don't want to add anything, otherwise it
9384 * makes it hard for the user to configure a self-redirection.
9385 */
Godbachd9722032014-12-18 15:44:58 +0800[diff] [blame]9386 curproxy->conf.args.ctx = ARGC_RDR;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9387 if (!(type == REDIRECT_TYPE_PREFIX && destination[0] == '/' && destination[1] == '\0')) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9388 if (!parse_logformat_string(destination, curproxy, &rule->rdr_fmt, LOG_OPT_HTTP,
9389 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]9390 : (curproxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9391 errmsg)) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9392 return NULL;
9393 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9394 free(curproxy->conf.lfs_file);
9395 curproxy->conf.lfs_file = strdup(curproxy->conf.args.file);
9396 curproxy->conf.lfs_line = curproxy->conf.args.line;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9397 }
9398 }
9399
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9400 if (cookie) {
9401 /* depending on cookie_set, either we want to set the cookie, or to clear it.
9402 * a clear consists in appending "; path=/; Max-Age=0;" at the end.
9403 */
9404 rule->cookie_len = strlen(cookie);
9405 if (cookie_set) {
9406 rule->cookie_str = malloc(rule->cookie_len + 10);
9407 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9408 memcpy(rule->cookie_str + rule->cookie_len, "; path=/;", 10);
9409 rule->cookie_len += 9;
9410 } else {
9411 rule->cookie_str = malloc(rule->cookie_len + 21);
9412 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9413 memcpy(rule->cookie_str + rule->cookie_len, "; path=/; Max-Age=0;", 21);
9414 rule->cookie_len += 20;
9415 }
9416 }
9417 rule->type = type;
9418 rule->code = code;
9419 rule->flags = flags;
9420 LIST_INIT(&rule->list);
9421 return rule;
9422
9423 missing_arg:
9424 memprintf(errmsg, "missing argument for '%s'", args[cur_arg]);
9425 return NULL;
9426}
9427
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9428/************************************************************************/
9429/* The code below is dedicated to ACL parsing and matching */
9430/************************************************************************/
9431
9432
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9433/* This function ensures that the prerequisites for an L7 fetch are ready,
9434 * which means that a request or response is ready. If some data is missing,
9435 * 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]9436 * to extract data from L7. If <req_vol> is non-null during a request prefetch,
9437 * another test is made to ensure the required information is not gone.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9438 *
9439 * The function returns :
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9440 * 0 with SMP_F_MAY_CHANGE in the sample flags if some data is missing to
9441 * decide whether or not an HTTP message is present ;
9442 * 0 if the requested data cannot be fetched or if it is certain that
9443 * we'll never have any HTTP message there ;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9444 * 1 if an HTTP message is ready
9445 */
James Rosewell91a41cb2015-09-18 17:11:16 +0100[diff] [blame]9446int smp_prefetch_http(struct proxy *px, struct stream *s, unsigned int opt,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9447 const struct arg *args, struct sample *smp, int req_vol)
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9448{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9449 struct http_txn *txn;
9450 struct http_msg *msg;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9451
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9452 /* Note: it is possible that <s> is NULL when called before stream
9453 * initialization (eg: tcp-request connection), so this function is the
9454 * one responsible for guarding against this case for all HTTP users.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9455 */
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9456 if (!s)
9457 return 0;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9458
Thierry FOURNIERed08d6a2015-09-24 08:40:18 +0200[diff] [blame]9459 if (!s->txn) {
9460 if (unlikely(!http_alloc_txn(s)))
9461 return 0; /* not enough memory */
9462 http_init_txn(s);
9463 }
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9464 txn = s->txn;
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9465 msg = &txn->req;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9466
9467 /* Check for a dependency on a request */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9468 smp->data.type = SMP_T_BOOL;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9469
Willy Tarreau32a6f2e2012-04-25 10:13:36 +0200[diff] [blame]9470 if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9471 /* If the buffer does not leave enough free space at the end,
9472 * we must first realign it.
9473 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9474 if (s->req.buf->p > s->req.buf->data &&
9475 s->req.buf->i + s->req.buf->p > s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)
9476 buffer_slow_realign(s->req.buf);
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9477
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9478 if (unlikely(txn->req.msg_state < HTTP_MSG_BODY)) {
Willy Tarreau472b1ee2013-10-14 22:41:30 +0200[diff] [blame]9479 if (msg->msg_state == HTTP_MSG_ERROR)
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9480 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9481
9482 /* Try to decode HTTP request */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9483 if (likely(msg->next < s->req.buf->i))
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9484 http_msg_analyzer(msg, &txn->hdr_idx);
9485
9486 /* Still no valid request ? */
9487 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau3bf1b2b2012-08-27 20:46:07 +0200[diff] [blame]9488 if ((msg->msg_state == HTTP_MSG_ERROR) ||
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9489 buffer_full(s->req.buf, global.tune.maxrewrite)) {
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9490 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9491 }
9492 /* wait for final state */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9493 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9494 return 0;
9495 }
9496
9497 /* OK we just got a valid HTTP request. We have some minor
9498 * preparation to perform so that further checks can rely
9499 * on HTTP tests.
9500 */
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9501
9502 /* If the request was parsed but was too large, we must absolutely
9503 * return an error so that it is not processed. At the moment this
9504 * cannot happen, but if the parsers are to change in the future,
9505 * we want this check to be maintained.
9506 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9507 if (unlikely(s->req.buf->i + s->req.buf->p >
9508 s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]9509 msg->err_state = msg->msg_state;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9510 msg->msg_state = HTTP_MSG_ERROR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9511 smp->data.u.sint = 1;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9512 return 1;
9513 }
9514
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9515 txn->meth = find_http_meth(msg->chn->buf->p, msg->sl.rq.m_l);
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9516 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]9517 s->flags |= SF_REDIRECTABLE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9518
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9519 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
9520 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9521 }
9522
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9523 if (req_vol && txn->rsp.msg_state != HTTP_MSG_RPBEFORE) {
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9524 return 0; /* data might have moved and indexes changed */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9525 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9526
9527 /* otherwise everything's ready for the request */
9528 }
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9529 else {
9530 /* Check for a dependency on a response */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9531 if (txn->rsp.msg_state < HTTP_MSG_BODY) {
9532 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9533 return 0;
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9534 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9535 }
9536
9537 /* everything's OK */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9538 smp->data.u.sint = 1;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9539 return 1;
9540}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9541
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9542/* 1. Check on METHOD
9543 * We use the pre-parsed method if it is known, and store its number as an
9544 * integer. If it is unknown, we use the pointer and the length.
9545 */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9546static int pat_parse_meth(const char *text, struct pattern *pattern, int mflags, char **err)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9547{
9548 int len, meth;
9549
Thierry FOURNIER580c32c2014-01-24 10:58:12 +0100[diff] [blame]9550 len = strlen(text);
9551 meth = find_http_meth(text, len);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9552
9553 pattern->val.i = meth;
9554 if (meth == HTTP_METH_OTHER) {
Willy Tarreau912c1192014-08-29 15:15:50 +0200[diff] [blame]9555 pattern->ptr.str = (char *)text;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9556 pattern->len = len;
9557 }
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9558 else {
9559 pattern->ptr.str = NULL;
9560 pattern->len = 0;
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9561 }
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9562 return 1;
9563}
9564
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9565/* This function fetches the method of current HTTP request and stores
9566 * it in the global pattern struct as a chunk. There are two possibilities :
9567 * - if the method is known (not HTTP_METH_OTHER), its identifier is stored
9568 * in <len> and <ptr> is NULL ;
9569 * - if the method is unknown (HTTP_METH_OTHER), <ptr> points to the text and
9570 * <len> to its length.
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]9571 * This is intended to be used with pat_match_meth() only.
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9572 */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9573static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9574smp_fetch_meth(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9575{
9576 int meth;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9577 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9578
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9579 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9580
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9581 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9582 meth = txn->meth;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9583 smp->data.type = SMP_T_METH;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9584 smp->data.u.meth.meth = meth;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9585 if (meth == HTTP_METH_OTHER) {
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9586 if (txn->rsp.msg_state != HTTP_MSG_RPBEFORE)
9587 /* ensure the indexes are not affected */
9588 return 0;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9589 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9590 smp->data.u.meth.str.len = txn->req.sl.rq.m_l;
9591 smp->data.u.meth.str.str = txn->req.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9592 }
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9593 smp->flags |= SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9594 return 1;
9595}
9596
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9597/* See above how the method is stored in the global pattern */
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9598static struct pattern *pat_match_meth(struct sample *smp, struct pattern_expr *expr, int fill)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9599{
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9600 int icase;
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9601 struct pattern_list *lst;
9602 struct pattern *pattern;
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9603
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9604 list_for_each_entry(lst, &expr->patterns, list) {
9605 pattern = &lst->pat;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9606
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9607 /* well-known method */
9608 if (pattern->val.i != HTTP_METH_OTHER) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9609 if (smp->data.u.meth.meth == pattern->val.i)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9610 return pattern;
9611 else
9612 continue;
9613 }
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9614
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9615 /* Other method, we must compare the strings */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9616 if (pattern->len != smp->data.u.meth.str.len)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9617 continue;
9618
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9619 icase = expr->mflags & PAT_MF_IGNORE_CASE;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9620 if ((icase && strncasecmp(pattern->ptr.str, smp->data.u.meth.str.str, smp->data.u.meth.str.len) == 0) ||
9621 (!icase && strncmp(pattern->ptr.str, smp->data.u.meth.str.str, smp->data.u.meth.str.len) == 0))
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9622 return pattern;
9623 }
9624 return NULL;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9625}
9626
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9627static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9628smp_fetch_rqver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9629{
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9630 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9631 char *ptr;
9632 int len;
9633
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9634 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9635
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9636 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9637 len = txn->req.sl.rq.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9638 ptr = txn->req.chn->buf->p + txn->req.sl.rq.v;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9639
9640 while ((len-- > 0) && (*ptr++ != '/'));
9641 if (len <= 0)
9642 return 0;
9643
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9644 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9645 smp->data.u.str.str = ptr;
9646 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9647
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9648 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9649 return 1;
9650}
9651
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9652static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9653smp_fetch_stver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9654{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9655 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9656 char *ptr;
9657 int len;
9658
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9659 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9660
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9661 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9662 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9663 return 0;
9664
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9665 len = txn->rsp.sl.st.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9666 ptr = txn->rsp.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9667
9668 while ((len-- > 0) && (*ptr++ != '/'));
9669 if (len <= 0)
9670 return 0;
9671
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9672 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9673 smp->data.u.str.str = ptr;
9674 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9675
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9676 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9677 return 1;
9678}
9679
9680/* 3. Check on Status Code. We manipulate integers here. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9681static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9682smp_fetch_stcode(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9683{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9684 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9685 char *ptr;
9686 int len;
9687
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9688 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9689
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9690 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9691 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9692 return 0;
9693
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9694 len = txn->rsp.sl.st.c_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9695 ptr = txn->rsp.chn->buf->p + txn->rsp.sl.st.c;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9696
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9697 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9698 smp->data.u.sint = __strl2ui(ptr, len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9699 smp->flags = SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9700 return 1;
9701}
9702
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9703static int
9704smp_fetch_uniqueid(const struct arg *args, struct sample *smp, const char *kw, void *private)
9705{
9706 if (LIST_ISEMPTY(&smp->sess->fe->format_unique_id))
9707 return 0;
9708
9709 if (!smp->strm->unique_id) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]9710 if ((smp->strm->unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9711 return 0;
9712 smp->strm->unique_id[0] = '\0';
9713 }
9714 smp->data.u.str.len = build_logline(smp->strm, smp->strm->unique_id,
9715 UNIQUEID_LEN, &smp->sess->fe->format_unique_id);
9716
9717 smp->data.type = SMP_T_STR;
9718 smp->data.u.str.str = smp->strm->unique_id;
9719 smp->flags = SMP_F_CONST;
9720 return 1;
9721}
9722
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]9723/* Returns a string block containing all headers including the
9724 * empty line wich separes headers from the body. This is useful
9725 * form some headers analysis.
9726 */
9727static int
9728smp_fetch_hdrs(const struct arg *args, struct sample *smp, const char *kw, void *private)
9729{
9730 struct http_msg *msg;
9731 struct hdr_idx *idx;
9732 struct http_txn *txn;
9733
9734 CHECK_HTTP_MESSAGE_FIRST();
9735
9736 txn = smp->strm->txn;
9737 idx = &txn->hdr_idx;
9738 msg = &txn->req;
9739
9740 smp->data.type = SMP_T_STR;
9741 smp->data.u.str.str = msg->chn->buf->p + hdr_idx_first_pos(idx);
9742 smp->data.u.str.len = msg->eoh - hdr_idx_first_pos(idx) + 1 +
9743 (msg->chn->buf->p[msg->eoh] == '\r');
9744
9745 return 1;
9746}
9747
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9748/* Returns the header request in a length/value encoded format.
9749 * This is useful for exchanges with the SPOE.
9750 *
9751 * A "length value" is a multibyte code encoding numbers. It uses the
9752 * SPOE format. The encoding is the following:
9753 *
9754 * Each couple "header name" / "header value" is composed
9755 * like this:
9756 * "length value" "header name bytes"
9757 * "length value" "header value bytes"
9758 * When the last header is reached, the header name and the header
9759 * value are empty. Their length are 0
9760 */
9761static int
9762smp_fetch_hdrs_bin(const struct arg *args, struct sample *smp, const char *kw, void *private)
9763{
9764 struct http_msg *msg;
9765 struct chunk *temp;
9766 struct hdr_idx *idx;
9767 const char *cur_ptr, *cur_next, *p;
9768 int old_idx, cur_idx;
9769 struct hdr_idx_elem *cur_hdr;
9770 const char *hn, *hv;
9771 int hnl, hvl;
9772 int ret;
9773 struct http_txn *txn;
9774 char *buf;
9775 char *end;
9776
9777 CHECK_HTTP_MESSAGE_FIRST();
9778
9779 temp = get_trash_chunk();
9780 buf = temp->str;
9781 end = temp->str + temp->size;
9782
9783 txn = smp->strm->txn;
9784 idx = &txn->hdr_idx;
9785 msg = &txn->req;
9786
9787 /* Build array of headers. */
9788 old_idx = 0;
9789 cur_next = msg->chn->buf->p + hdr_idx_first_pos(idx);
9790 while (1) {
9791 cur_idx = idx->v[old_idx].next;
9792 if (!cur_idx)
9793 break;
9794 old_idx = cur_idx;
9795
9796 cur_hdr = &idx->v[cur_idx];
9797 cur_ptr = cur_next;
9798 cur_next = cur_ptr + cur_hdr->len + cur_hdr->cr + 1;
9799
9800 /* Now we have one full header at cur_ptr of len cur_hdr->len,
9801 * and the next header starts at cur_next. We'll check
9802 * this header in the list as well as against the default
9803 * rule.
9804 */
9805
9806 /* look for ': *'. */
9807 hn = cur_ptr;
9808 for (p = cur_ptr; p < cur_ptr + cur_hdr->len && *p != ':'; p++);
9809 if (p >= cur_ptr+cur_hdr->len)
9810 continue;
9811 hnl = p - hn;
9812 p++;
9813 while (p < cur_ptr + cur_hdr->len && (*p == ' ' || *p == '\t'))
9814 p++;
9815 if (p >= cur_ptr + cur_hdr->len)
9816 continue;
9817 hv = p;
9818 hvl = cur_ptr + cur_hdr->len-p;
9819
9820 /* encode the header name. */
9821 ret = encode_varint(hnl, &buf, end);
9822 if (ret == -1)
9823 return 0;
9824 if (buf + hnl > end)
9825 return 0;
9826 memcpy(buf, hn, hnl);
9827 buf += hnl;
9828
9829 /* encode and copy the value. */
9830 ret = encode_varint(hvl, &buf, end);
9831 if (ret == -1)
9832 return 0;
9833 if (buf + hvl > end)
9834 return 0;
9835 memcpy(buf, hv, hvl);
9836 buf += hvl;
9837 }
9838
9839 /* encode the end of the header list with empty
9840 * header name and header value.
9841 */
9842 ret = encode_varint(0, &buf, end);
9843 if (ret == -1)
9844 return 0;
9845 ret = encode_varint(0, &buf, end);
9846 if (ret == -1)
9847 return 0;
9848
9849 /* Initialise sample data which will be filled. */
9850 smp->data.type = SMP_T_BIN;
9851 smp->data.u.str.str = temp->str;
9852 smp->data.u.str.len = buf - temp->str;
9853 smp->data.u.str.size = temp->size;
9854
9855 return 1;
9856}
9857
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9858/* returns the longest available part of the body. This requires that the body
9859 * has been waited for using http-buffer-request.
9860 */
9861static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9862smp_fetch_body(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9863{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9864 struct http_msg *msg;
9865 unsigned long len;
9866 unsigned long block1;
9867 char *body;
9868 struct chunk *temp;
9869
9870 CHECK_HTTP_MESSAGE_FIRST();
9871
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9872 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9873 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9874 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9875 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9876
9877 len = http_body_bytes(msg);
9878 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
9879
9880 block1 = len;
9881 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
9882 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
9883
9884 if (block1 == len) {
9885 /* buffer is not wrapped (or empty) */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9886 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9887 smp->data.u.str.str = body;
9888 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9889 smp->flags = SMP_F_VOL_TEST | SMP_F_CONST;
9890 }
9891 else {
9892 /* buffer is wrapped, we need to defragment it */
9893 temp = get_trash_chunk();
9894 memcpy(temp->str, body, block1);
9895 memcpy(temp->str + block1, msg->chn->buf->data, len - block1);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9896 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9897 smp->data.u.str.str = temp->str;
9898 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9899 smp->flags = SMP_F_VOL_TEST;
9900 }
9901 return 1;
9902}
9903
9904
9905/* returns the available length of the body. This requires that the body
9906 * has been waited for using http-buffer-request.
9907 */
9908static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9909smp_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]9910{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9911 struct http_msg *msg;
9912
9913 CHECK_HTTP_MESSAGE_FIRST();
9914
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9915 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9916 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9917 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9918 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9919
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9920 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9921 smp->data.u.sint = http_body_bytes(msg);
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9922
9923 smp->flags = SMP_F_VOL_TEST;
9924 return 1;
9925}
9926
9927
9928/* returns the advertised length of the body, or the advertised size of the
9929 * chunks available in the buffer. This requires that the body has been waited
9930 * for using http-buffer-request.
9931 */
9932static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9933smp_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]9934{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9935 struct http_msg *msg;
9936
9937 CHECK_HTTP_MESSAGE_FIRST();
9938
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9939 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9940 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9941 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9942 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9943
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9944 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9945 smp->data.u.sint = msg->body_len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9946
9947 smp->flags = SMP_F_VOL_TEST;
9948 return 1;
9949}
9950
9951
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9952/* 4. Check on URL/URI. A pointer to the URI is stored. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9953static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9954smp_fetch_url(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9955{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9956 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9957
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9958 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9959
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9960 txn = smp->strm->txn;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9961 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9962 smp->data.u.str.len = txn->req.sl.rq.u_l;
9963 smp->data.u.str.str = txn->req.chn->buf->p + txn->req.sl.rq.u;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9964 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9965 return 1;
9966}
9967
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9968static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9969smp_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]9970{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9971 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]9972 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9973
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9974 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9975
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9976 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]9977 url2sa(txn->req.chn->buf->p + txn->req.sl.rq.u, txn->req.sl.rq.u_l, &addr, NULL);
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]9978 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
Willy Tarreauf4362b32011-12-16 17:49:52 +0100[diff] [blame]9979 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9980
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9981 smp->data.type = SMP_T_IPV4;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9982 smp->data.u.ipv4 = ((struct sockaddr_in *)&addr)->sin_addr;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9983 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9984 return 1;
9985}
9986
9987static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9988smp_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]9989{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9990 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]9991 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9992
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9993 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9994
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9995 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]9996 url2sa(txn->req.chn->buf->p + txn->req.sl.rq.u, txn->req.sl.rq.u_l, &addr, NULL);
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]9997 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
9998 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9999
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10000 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10001 smp->data.u.sint = ntohs(((struct sockaddr_in *)&addr)->sin_port);
Willy Tarreau21e5b0e2012-04-23 19:25:44 +0200[diff] [blame]10002 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10003 return 1;
10004}
10005
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10006/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
10007 * Accepts an optional argument of type string containing the header field name,
10008 * and an optional argument of type signed or unsigned integer to request an
10009 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10010 * headers are considered from the first one. It does not stop on commas and
10011 * returns full lines instead (useful for User-Agent or Date for example).
10012 */
10013static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10014smp_fetch_fhdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10015{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10016 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10017 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10018 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10019 int occ = 0;
10020 const char *name_str = NULL;
10021 int name_len = 0;
10022
10023 if (!ctx) {
10024 /* first call */
10025 ctx = &static_hdr_ctx;
10026 ctx->idx = 0;
10027 smp->ctx.a[0] = ctx;
10028 }
10029
10030 if (args) {
10031 if (args[0].type != ARGT_STR)
10032 return 0;
10033 name_str = args[0].data.str.str;
10034 name_len = args[0].data.str.len;
10035
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10036 if (args[1].type == ARGT_SINT)
10037 occ = args[1].data.sint;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10038 }
10039
10040 CHECK_HTTP_MESSAGE_FIRST();
10041
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10042 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10043 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]10044
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10045 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
10046 /* search for header from the beginning */
10047 ctx->idx = 0;
10048
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10049 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10050 /* no explicit occurrence and single fetch => last header by default */
10051 occ = -1;
10052
10053 if (!occ)
10054 /* prepare to report multiple occurrences for ACL fetches */
10055 smp->flags |= SMP_F_NOT_LAST;
10056
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10057 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10058 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10059 if (http_get_fhdr(msg, name_str, name_len, idx, occ, ctx, &smp->data.u.str.str, &smp->data.u.str.len))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10060 return 1;
10061
10062 smp->flags &= ~SMP_F_NOT_LAST;
10063 return 0;
10064}
10065
10066/* 6. Check on HTTP header count. The number of occurrences is returned.
10067 * Accepts exactly 1 argument of type string. It does not stop on commas and
10068 * returns full lines instead (useful for User-Agent or Date for example).
10069 */
10070static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10071smp_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]10072{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10073 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10074 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10075 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10076 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10077 const char *name = NULL;
10078 int len = 0;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10079
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10080 if (args && args->type == ARGT_STR) {
10081 name = args->data.str.str;
10082 len = args->data.str.len;
10083 }
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10084
10085 CHECK_HTTP_MESSAGE_FIRST();
10086
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10087 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10088 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]10089
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10090 ctx.idx = 0;
10091 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10092 while (http_find_full_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10093 cnt++;
10094
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10095 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10096 smp->data.u.sint = cnt;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10097 smp->flags = SMP_F_VOL_HDR;
10098 return 1;
10099}
10100
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10101static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10102smp_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]10103{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10104 struct hdr_idx *idx;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10105 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10106 const struct http_msg *msg;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10107 struct chunk *temp;
10108 char del = ',';
10109
10110 if (args && args->type == ARGT_STR)
10111 del = *args[0].data.str.str;
10112
10113 CHECK_HTTP_MESSAGE_FIRST();
10114
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10115 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10116 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]10117
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10118 temp = get_trash_chunk();
10119
10120 ctx.idx = 0;
10121 while (http_find_next_header(msg->chn->buf->p, idx, &ctx)) {
10122 if (temp->len)
10123 temp->str[temp->len++] = del;
10124 memcpy(temp->str + temp->len, ctx.line, ctx.del);
10125 temp->len += ctx.del;
10126 }
10127
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10128 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10129 smp->data.u.str.str = temp->str;
10130 smp->data.u.str.len = temp->len;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10131 smp->flags = SMP_F_VOL_HDR;
10132 return 1;
10133}
10134
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10135/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
10136 * Accepts an optional argument of type string containing the header field name,
10137 * and an optional argument of type signed or unsigned integer to request an
10138 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10139 * headers are considered from the first one.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10140 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10141static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10142smp_fetch_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10143{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10144 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10145 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10146 const struct http_msg *msg;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10147 int occ = 0;
10148 const char *name_str = NULL;
10149 int name_len = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10150
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10151 if (!ctx) {
10152 /* first call */
10153 ctx = &static_hdr_ctx;
10154 ctx->idx = 0;
Willy Tarreauffb6f082013-04-02 23:16:53 +0200[diff] [blame]10155 smp->ctx.a[0] = ctx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10156 }
10157
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10158 if (args) {
10159 if (args[0].type != ARGT_STR)
10160 return 0;
10161 name_str = args[0].data.str.str;
10162 name_len = args[0].data.str.len;
10163
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10164 if (args[1].type == ARGT_SINT)
10165 occ = args[1].data.sint;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10166 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10167
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10168 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10169
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10170 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10171 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]10172
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10173 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10174 /* search for header from the beginning */
10175 ctx->idx = 0;
10176
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10177 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10178 /* no explicit occurrence and single fetch => last header by default */
10179 occ = -1;
10180
10181 if (!occ)
10182 /* prepare to report multiple occurrences for ACL fetches */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10183 smp->flags |= SMP_F_NOT_LAST;
Willy Tarreau664092c2011-12-16 19:11:42 +0100[diff] [blame]10184
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10185 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10186 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10187 if (http_get_hdr(msg, name_str, name_len, idx, occ, ctx, &smp->data.u.str.str, &smp->data.u.str.len))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10188 return 1;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10189
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10190 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10191 return 0;
10192}
10193
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10194/* 6. Check on HTTP header count. The number of occurrences is returned.
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10195 * Accepts exactly 1 argument of type string.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10196 */
10197static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10198smp_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]10199{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10200 struct hdr_idx *idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10201 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10202 const struct http_msg *msg;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10203 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10204 const char *name = NULL;
10205 int len = 0;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10206
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10207 if (args && args->type == ARGT_STR) {
10208 name = args->data.str.str;
10209 len = args->data.str.len;
10210 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10211
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10212 CHECK_HTTP_MESSAGE_FIRST();
10213
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10214 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10215 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]10216
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10217 ctx.idx = 0;
10218 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10219 while (http_find_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10220 cnt++;
10221
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10222 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10223 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10224 smp->flags = SMP_F_VOL_HDR;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10225 return 1;
10226}
10227
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10228/* Fetch an HTTP header's integer value. The integer value is returned. It
10229 * takes a mandatory argument of type string and an optional one of type int
10230 * to designate a specific occurrence. It returns an unsigned integer, which
10231 * may or may not be appropriate for everything.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10232 */
10233static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10234smp_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]10235{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10236 int ret = smp_fetch_hdr(args, smp, kw, private);
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10237
Willy Tarreauf853c462012-04-23 18:53:56 +0200[diff] [blame]10238 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10239 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10240 smp->data.u.sint = strl2ic(smp->data.u.str.str, smp->data.u.str.len);
Willy Tarreauf853c462012-04-23 18:53:56 +0200[diff] [blame]10241 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10242
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10243 return ret;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10244}
10245
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10246/* Fetch an HTTP header's IP value. takes a mandatory argument of type string
10247 * and an optional one of type int to designate a specific occurrence.
10248 * It returns an IPv4 or IPv6 address.
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10249 */
10250static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10251smp_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]10252{
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10253 int ret;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10254
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10255 while ((ret = smp_fetch_hdr(args, smp, kw, private)) > 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10256 if (url2ipv4((char *)smp->data.u.str.str, &smp->data.u.ipv4)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10257 smp->data.type = SMP_T_IPV4;
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10258 break;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10259 } else {
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10260 struct chunk *temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10261 if (smp->data.u.str.len < temp->size - 1) {
10262 memcpy(temp->str, smp->data.u.str.str, smp->data.u.str.len);
10263 temp->str[smp->data.u.str.len] = '\0';
10264 if (inet_pton(AF_INET6, temp->str, &smp->data.u.ipv6)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10265 smp->data.type = SMP_T_IPV6;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10266 break;
10267 }
10268 }
10269 }
10270
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10271 /* if the header doesn't match an IP address, fetch next one */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10272 if (!(smp->flags & SMP_F_NOT_LAST))
10273 return 0;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10274 }
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10275 return ret;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10276}
10277
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10278/* 8. Check on URI PATH. A pointer to the PATH is stored. The path starts at
10279 * the first '/' after the possible hostname, and ends before the possible '?'.
10280 */
10281static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10282smp_fetch_path(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10283{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10284 struct http_txn *txn;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10285 char *ptr, *end;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10286
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10287 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10288
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10289 txn = smp->strm->txn;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10290 end = txn->req.chn->buf->p + txn->req.sl.rq.u + txn->req.sl.rq.u_l;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]10291 ptr = http_get_path(txn);
10292 if (!ptr)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10293 return 0;
10294
10295 /* OK, we got the '/' ! */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10296 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10297 smp->data.u.str.str = ptr;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10298
10299 while (ptr < end && *ptr != '?')
10300 ptr++;
10301
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10302 smp->data.u.str.len = ptr - smp->data.u.str.str;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10303 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10304 return 1;
10305}
10306
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10307/* This produces a concatenation of the first occurrence of the Host header
10308 * followed by the path component if it begins with a slash ('/'). This means
10309 * that '*' will not be added, resulting in exactly the first Host entry.
10310 * If no Host header is found, then the path is returned as-is. The returned
10311 * 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]10312 * The returned sample is of type string.
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10313 */
10314static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10315smp_fetch_base(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10316{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10317 struct http_txn *txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10318 char *ptr, *end, *beg;
10319 struct hdr_ctx ctx;
Willy Tarreau3caf2af2014-06-24 17:27:02 +0200[diff] [blame]10320 struct chunk *temp;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10321
10322 CHECK_HTTP_MESSAGE_FIRST();
10323
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10324 txn = smp->strm->txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10325 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10326 if (!http_find_header2("Host", 4, txn->req.chn->buf->p, &txn->hdr_idx, &ctx) || !ctx.vlen)
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10327 return smp_fetch_path(args, smp, kw, private);
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10328
10329 /* 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]10330 temp = get_trash_chunk();
10331 memcpy(temp->str, ctx.line + ctx.val, ctx.vlen);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10332 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10333 smp->data.u.str.str = temp->str;
10334 smp->data.u.str.len = ctx.vlen;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10335
10336 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10337 end = txn->req.chn->buf->p + txn->req.sl.rq.u + txn->req.sl.rq.u_l;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10338 beg = http_get_path(txn);
10339 if (!beg)
10340 beg = end;
10341
10342 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10343
10344 if (beg < ptr && *beg == '/') {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10345 memcpy(smp->data.u.str.str + smp->data.u.str.len, beg, ptr - beg);
10346 smp->data.u.str.len += ptr - beg;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10347 }
10348
10349 smp->flags = SMP_F_VOL_1ST;
10350 return 1;
10351}
10352
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10353/* This produces a 32-bit hash of the concatenation of the first occurrence of
10354 * the Host header followed by the path component if it begins with a slash ('/').
10355 * This means that '*' will not be added, resulting in exactly the first Host
10356 * 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]10357 * is hashed using the path hash followed by a full avalanche hash and provides a
10358 * 32-bit integer value. This fetch is useful for tracking per-path activity on
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10359 * high-traffic sites without having to store whole paths.
10360 */
Thierry FOURNIER055b9d52014-07-15 16:11:07 +0200[diff] [blame]10361int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10362smp_fetch_base32(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10363{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10364 struct http_txn *txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10365 struct hdr_ctx ctx;
10366 unsigned int hash = 0;
10367 char *ptr, *beg, *end;
10368 int len;
10369
10370 CHECK_HTTP_MESSAGE_FIRST();
10371
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10372 txn = smp->strm->txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10373 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10374 if (http_find_header2("Host", 4, txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10375 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
10376 ptr = ctx.line + ctx.val;
10377 len = ctx.vlen;
10378 while (len--)
10379 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
10380 }
10381
10382 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10383 end = txn->req.chn->buf->p + txn->req.sl.rq.u + txn->req.sl.rq.u_l;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10384 beg = http_get_path(txn);
10385 if (!beg)
10386 beg = end;
10387
10388 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10389
10390 if (beg < ptr && *beg == '/') {
10391 while (beg < ptr)
10392 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
10393 }
10394 hash = full_hash(hash);
10395
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10396 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10397 smp->data.u.sint = hash;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10398 smp->flags = SMP_F_VOL_1ST;
10399 return 1;
10400}
10401
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10402/* 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]10403 * path as returned by smp_fetch_base32(). The idea is to have per-source and
10404 * per-path counters. The result is a binary block from 8 to 20 bytes depending
10405 * on the source address length. The path hash is stored before the address so
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10406 * that in environments where IPv6 is insignificant, truncating the output to
10407 * 8 bytes would still work.
10408 */
10409static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10410smp_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]10411{
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10412 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10413 struct connection *cli_conn = objt_conn(smp->sess->origin);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10414
10415 if (!cli_conn)
10416 return 0;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10417
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10418 if (!smp_fetch_base32(args, smp, kw, private))
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10419 return 0;
10420
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10421 temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10422 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
Willy Tarreau5ad6e1d2014-07-15 21:34:06 +0200[diff] [blame]10423 temp->len += sizeof(unsigned int);
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10424
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10425 switch (cli_conn->addr.from.ss_family) {
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10426 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10427 memcpy(temp->str + temp->len, &((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr, 4);
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10428 temp->len += 4;
10429 break;
10430 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10431 memcpy(temp->str + temp->len, &((struct sockaddr_in6 *)&cli_conn->addr.from)->sin6_addr, 16);
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10432 temp->len += 16;
10433 break;
10434 default:
10435 return 0;
10436 }
10437
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10438 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10439 smp->data.type = SMP_T_BIN;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10440 return 1;
10441}
10442
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10443/* Extracts the query string, which comes after the question mark '?'. If no
10444 * question mark is found, nothing is returned. Otherwise it returns a sample
10445 * of type string carrying the whole query string.
10446 */
10447static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10448smp_fetch_query(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10449{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10450 struct http_txn *txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10451 char *ptr, *end;
10452
10453 CHECK_HTTP_MESSAGE_FIRST();
10454
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10455 txn = smp->strm->txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10456 ptr = txn->req.chn->buf->p + txn->req.sl.rq.u;
10457 end = ptr + txn->req.sl.rq.u_l;
10458
10459 /* look up the '?' */
10460 do {
10461 if (ptr == end)
10462 return 0;
10463 } while (*ptr++ != '?');
10464
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10465 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10466 smp->data.u.str.str = ptr;
10467 smp->data.u.str.len = end - ptr;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10468 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
10469 return 1;
10470}
10471
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10472static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10473smp_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]10474{
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10475 /* Note: hdr_idx.v cannot be NULL in this ACL because the ACL is tagged
10476 * as a layer7 ACL, which involves automatic allocation of hdr_idx.
10477 */
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10478
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10479 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10480
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10481 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10482 smp->data.u.sint = 1;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10483 return 1;
10484}
10485
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10486/* return a valid test if the current request is the first one on the connection */
10487static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10488smp_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]10489{
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10490 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10491 smp->data.u.sint = !(smp->strm->txn->flags & TX_NOT_FIRST);
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10492 return 1;
10493}
10494
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10495/* Accepts exactly 1 argument of type userlist */
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10496static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10497smp_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]10498{
10499
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10500 if (!args || args->type != ARGT_USR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10501 return 0;
10502
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10503 CHECK_HTTP_MESSAGE_FIRST();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10504
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10505 if (!get_http_auth(smp->strm))
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10506 return 0;
10507
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10508 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10509 smp->data.u.sint = check_user(args->data.usr, smp->strm->txn->auth.user,
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10510 smp->strm->txn->auth.pass);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10511 return 1;
10512}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10513
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10514/* Accepts exactly 1 argument of type userlist */
10515static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10516smp_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]10517{
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10518 if (!args || args->type != ARGT_USR)
10519 return 0;
10520
10521 CHECK_HTTP_MESSAGE_FIRST();
10522
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10523 if (!get_http_auth(smp->strm))
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10524 return 0;
10525
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10526 /* if the user does not belong to the userlist or has a wrong password,
10527 * report that it unconditionally does not match. Otherwise we return
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10528 * a string containing the username.
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10529 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10530 if (!check_user(args->data.usr, smp->strm->txn->auth.user,
10531 smp->strm->txn->auth.pass))
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10532 return 0;
10533
10534 /* pat_match_auth() will need the user list */
10535 smp->ctx.a[0] = args->data.usr;
10536
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10537 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10538 smp->flags = SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10539 smp->data.u.str.str = smp->strm->txn->auth.user;
10540 smp->data.u.str.len = strlen(smp->strm->txn->auth.user);
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10541
10542 return 1;
10543}
10544
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10545/* Try to find the next occurrence of a cookie name in a cookie header value.
10546 * The lookup begins at <hdr>. The pointer and size of the next occurrence of
10547 * the cookie value is returned into *value and *value_l, and the function
10548 * returns a pointer to the next pointer to search from if the value was found.
10549 * Otherwise if the cookie was not found, NULL is returned and neither value
10550 * nor value_l are touched. The input <hdr> string should first point to the
10551 * header's value, and the <hdr_end> pointer must point to the first character
10552 * not part of the value. <list> must be non-zero if value may represent a list
10553 * of values (cookie headers). This makes it faster to abort parsing when no
10554 * list is expected.
10555 */
David Carlier4686f792015-09-25 14:10:50 +0100[diff] [blame]10556char *
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10557extract_cookie_value(char *hdr, const char *hdr_end,
10558 char *cookie_name, size_t cookie_name_l, int list,
Willy Tarreau3fb818c2012-04-11 17:21:08 +0200[diff] [blame]10559 char **value, int *value_l)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10560{
10561 char *equal, *att_end, *att_beg, *val_beg, *val_end;
10562 char *next;
10563
10564 /* we search at least a cookie name followed by an equal, and more
10565 * generally something like this :
10566 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
10567 */
10568 for (att_beg = hdr; att_beg + cookie_name_l + 1 < hdr_end; att_beg = next + 1) {
10569 /* Iterate through all cookies on this line */
10570
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10571 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10572 att_beg++;
10573
10574 /* find att_end : this is the first character after the last non
10575 * space before the equal. It may be equal to hdr_end.
10576 */
10577 equal = att_end = att_beg;
10578
10579 while (equal < hdr_end) {
10580 if (*equal == '=' || *equal == ';' || (list && *equal == ','))
10581 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10582 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10583 continue;
10584 att_end = equal;
10585 }
10586
10587 /* here, <equal> points to '=', a delimitor or the end. <att_end>
10588 * is between <att_beg> and <equal>, both may be identical.
10589 */
10590
10591 /* look for end of cookie if there is an equal sign */
10592 if (equal < hdr_end && *equal == '=') {
10593 /* look for the beginning of the value */
10594 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10595 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10596 val_beg++;
10597
10598 /* find the end of the value, respecting quotes */
10599 next = find_cookie_value_end(val_beg, hdr_end);
10600
10601 /* make val_end point to the first white space or delimitor after the value */
10602 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10603 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10604 val_end--;
10605 } else {
10606 val_beg = val_end = next = equal;
10607 }
10608
10609 /* We have nothing to do with attributes beginning with '$'. However,
10610 * they will automatically be removed if a header before them is removed,
10611 * since they're supposed to be linked together.
10612 */
10613 if (*att_beg == '$')
10614 continue;
10615
10616 /* Ignore cookies with no equal sign */
10617 if (equal == next)
10618 continue;
10619
10620 /* Now we have the cookie name between att_beg and att_end, and
10621 * its value between val_beg and val_end.
10622 */
10623
10624 if (att_end - att_beg == cookie_name_l &&
10625 memcmp(att_beg, cookie_name, cookie_name_l) == 0) {
10626 /* let's return this value and indicate where to go on from */
10627 *value = val_beg;
10628 *value_l = val_end - val_beg;
10629 return next + 1;
10630 }
10631
10632 /* Set-Cookie headers only have the name in the first attr=value part */
10633 if (!list)
10634 break;
10635 }
10636
10637 return NULL;
10638}
10639
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10640/* Fetch a captured HTTP request header. The index is the position of
10641 * the "capture" option in the configuration file
10642 */
10643static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10644smp_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]10645{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10646 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10647 int idx;
10648
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10649 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10650 return 0;
10651
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10652 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10653
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10654 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]10655 return 0;
10656
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10657 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10658 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10659 smp->data.u.str.str = smp->strm->req_cap[idx];
10660 smp->data.u.str.len = strlen(smp->strm->req_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10661
10662 return 1;
10663}
10664
10665/* Fetch a captured HTTP response header. The index is the position of
10666 * the "capture" option in the configuration file
10667 */
10668static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10669smp_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]10670{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10671 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10672 int idx;
10673
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10674 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10675 return 0;
10676
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10677 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10678
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10679 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]10680 return 0;
10681
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10682 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10683 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10684 smp->data.u.str.str = smp->strm->res_cap[idx];
10685 smp->data.u.str.len = strlen(smp->strm->res_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10686
10687 return 1;
10688}
10689
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10690/* Extracts the METHOD in the HTTP request, the txn->uri should be filled before the call */
10691static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10692smp_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]10693{
10694 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10695 struct http_txn *txn = smp->strm->txn;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10696 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10697
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10698 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10699 return 0;
10700
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10701 ptr = txn->uri;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10702
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10703 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10704 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10705
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10706 temp = get_trash_chunk();
10707 temp->str = txn->uri;
10708 temp->len = ptr - txn->uri;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10709 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10710 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10711 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10712
10713 return 1;
10714
10715}
10716
10717/* Extracts the path in the HTTP request, the txn->uri should be filled before the call */
10718static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10719smp_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]10720{
10721 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10722 struct http_txn *txn = smp->strm->txn;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10723 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10724
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10725 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10726 return 0;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10727
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10728 ptr = txn->uri;
10729
10730 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10731 ptr++;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10732
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10733 if (!*ptr)
10734 return 0;
10735
10736 ptr++; /* skip the space */
10737
10738 temp = get_trash_chunk();
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10739 ptr = temp->str = http_get_path_from_string(ptr);
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10740 if (!ptr)
10741 return 0;
10742 while (*ptr != ' ' && *ptr != '\0') /* find space after URI */
10743 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10744
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10745 smp->data.u.str = *temp;
10746 smp->data.u.str.len = ptr - temp->str;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10747 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10748 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10749
10750 return 1;
10751}
10752
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10753/* Retrieves the HTTP version from the request (either 1.0 or 1.1) and emits it
10754 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10755 */
10756static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10757smp_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]10758{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10759 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10760
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10761 if (!txn || txn->req.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10762 return 0;
10763
10764 if (txn->req.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10765 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10766 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10767 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10768
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10769 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10770 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10771 smp->flags = SMP_F_CONST;
10772 return 1;
10773
10774}
10775
10776/* Retrieves the HTTP version from the response (either 1.0 or 1.1) and emits it
10777 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10778 */
10779static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10780smp_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]10781{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10782 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10783
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10784 if (!txn || txn->rsp.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10785 return 0;
10786
10787 if (txn->rsp.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10788 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10789 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10790 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10791
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10792 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10793 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10794 smp->flags = SMP_F_CONST;
10795 return 1;
10796
10797}
10798
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10799
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10800/* Iterate over all cookies present in a message. The context is stored in
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10801 * 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]10802 * 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]10803 * the direction, multiple cookies may be parsed on the same line or not.
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10804 * 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]10805 * Accepts exactly 1 argument of type string. If the input options indicate
10806 * that no iterating is desired, then only last value is fetched if any.
William Lallemand07c8b242014-05-02 17:11:07 +0200[diff] [blame]10807 * The returned sample is of type CSTR. Can be used to parse cookies in other
10808 * files.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10809 */
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10810int 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]10811{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10812 struct http_txn *txn;
10813 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10814 struct hdr_ctx *ctx = smp->ctx.a[2];
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10815 const struct http_msg *msg;
10816 const char *hdr_name;
10817 int hdr_name_len;
10818 char *sol;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10819 int occ = 0;
10820 int found = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10821
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10822 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10823 return 0;
10824
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10825 if (!ctx) {
10826 /* first call */
10827 ctx = &static_hdr_ctx;
10828 ctx->idx = 0;
10829 smp->ctx.a[2] = ctx;
10830 }
10831
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10832 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10833
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10834 txn = smp->strm->txn;
10835 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10836
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10837 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10838 msg = &txn->req;
10839 hdr_name = "Cookie";
10840 hdr_name_len = 6;
10841 } else {
10842 msg = &txn->rsp;
10843 hdr_name = "Set-Cookie";
10844 hdr_name_len = 10;
10845 }
10846
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10847 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10848 /* no explicit occurrence and single fetch => last cookie by default */
10849 occ = -1;
10850
10851 /* OK so basically here, either we want only one value and it's the
10852 * last one, or we want to iterate over all of them and we fetch the
10853 * next one.
10854 */
10855
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10856 sol = msg->chn->buf->p;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10857 if (!(smp->flags & SMP_F_NOT_LAST)) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10858 /* search for the header from the beginning, we must first initialize
10859 * the search parameters.
10860 */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10861 smp->ctx.a[0] = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10862 ctx->idx = 0;
10863 }
10864
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10865 smp->flags |= SMP_F_VOL_HDR;
10866
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10867 while (1) {
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10868 /* Note: smp->ctx.a[0] == NULL every time we need to fetch a new header */
10869 if (!smp->ctx.a[0]) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10870 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, ctx))
10871 goto out;
10872
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10873 if (ctx->vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10874 continue;
10875
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10876 smp->ctx.a[0] = ctx->line + ctx->val;
10877 smp->ctx.a[1] = smp->ctx.a[0] + ctx->vlen;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10878 }
10879
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10880 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10881 smp->flags |= SMP_F_CONST;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10882 smp->ctx.a[0] = extract_cookie_value(smp->ctx.a[0], smp->ctx.a[1],
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10883 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10884 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10885 &smp->data.u.str.str,
10886 &smp->data.u.str.len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10887 if (smp->ctx.a[0]) {
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10888 found = 1;
10889 if (occ >= 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10890 /* one value was returned into smp->data.u.str.{str,len} */
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10891 smp->flags |= SMP_F_NOT_LAST;
10892 return 1;
10893 }
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10894 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10895 /* if we're looking for last occurrence, let's loop */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10896 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10897 /* all cookie headers and values were scanned. If we're looking for the
10898 * last occurrence, we may return it now.
10899 */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10900 out:
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10901 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10902 return found;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10903}
10904
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10905/* Iterate over all cookies present in a request to count how many occurrences
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10906 * 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]10907 * multiple cookies may be parsed on the same line. The returned sample is of
10908 * type UINT. Accepts exactly 1 argument of type string.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10909 */
10910static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10911smp_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]10912{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10913 struct http_txn *txn;
10914 struct hdr_idx *idx;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10915 struct hdr_ctx ctx;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10916 const struct http_msg *msg;
10917 const char *hdr_name;
10918 int hdr_name_len;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10919 int cnt;
10920 char *val_beg, *val_end;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10921 char *sol;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10922
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10923 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10924 return 0;
10925
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10926 CHECK_HTTP_MESSAGE_FIRST();
10927
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10928 txn = smp->strm->txn;
10929 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10930
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10931 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10932 msg = &txn->req;
10933 hdr_name = "Cookie";
10934 hdr_name_len = 6;
10935 } else {
10936 msg = &txn->rsp;
10937 hdr_name = "Set-Cookie";
10938 hdr_name_len = 10;
10939 }
10940
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10941 sol = msg->chn->buf->p;
Willy Tarreau46787ed2012-04-11 17:28:40 +0200[diff] [blame]10942 val_end = val_beg = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10943 ctx.idx = 0;
10944 cnt = 0;
10945
10946 while (1) {
10947 /* Note: val_beg == NULL every time we need to fetch a new header */
10948 if (!val_beg) {
10949 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, &ctx))
10950 break;
10951
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10952 if (ctx.vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10953 continue;
10954
10955 val_beg = ctx.line + ctx.val;
10956 val_end = val_beg + ctx.vlen;
10957 }
10958
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10959 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10960 smp->flags |= SMP_F_CONST;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10961 while ((val_beg = extract_cookie_value(val_beg, val_end,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10962 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10963 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10964 &smp->data.u.str.str,
10965 &smp->data.u.str.len))) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10966 cnt++;
10967 }
10968 }
10969
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10970 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10971 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10972 smp->flags |= SMP_F_VOL_HDR;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10973 return 1;
10974}
10975
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]10976/* Fetch an cookie's integer value. The integer value is returned. It
10977 * takes a mandatory argument of type string. It relies on smp_fetch_cookie().
10978 */
10979static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10980smp_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]10981{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10982 int ret = smp_fetch_cookie(args, smp, kw, private);
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]10983
10984 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10985 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10986 smp->data.u.sint = strl2ic(smp->data.u.str.str, smp->data.u.str.len);
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]10987 }
10988
10989 return ret;
10990}
10991
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10992/************************************************************************/
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]10993/* The code below is dedicated to sample fetches */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]10994/************************************************************************/
10995
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10996/*
10997 * Given a path string and its length, find the position of beginning of the
10998 * query string. Returns NULL if no query string is found in the path.
10999 *
11000 * Example: if path = "/foo/bar/fubar?yo=mama;ye=daddy", and n = 22:
11001 *
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11002 * find_query_string(path, n, '?') points to "yo=mama;ye=daddy" string.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11003 */
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11004static inline char *find_param_list(char *path, size_t path_l, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11005{
11006 char *p;
Emeric Brun485479d2010-09-23 18:02:19 +0200[diff] [blame]11007
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11008 p = memchr(path, delim, path_l);
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11009 return p ? p + 1 : NULL;
11010}
11011
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11012static inline int is_param_delimiter(char c, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11013{
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11014 return c == '&' || c == ';' || c == delim;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11015}
11016
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11017/* after increasing a pointer value, it can exceed the first buffer
11018 * size. This function transform the value of <ptr> according with
11019 * the expected position. <chunks> is an array of the one or two
11020 * avalaible chunks. The first value is the start of the first chunk,
11021 * the second value if the end+1 of the first chunks. The third value
11022 * is NULL or the start of the second chunk and the fourth value is
11023 * the end+1 of the second chunk. The function returns 1 if does a
11024 * wrap, else returns 0.
11025 */
11026static inline int fix_pointer_if_wrap(const char **chunks, const char **ptr)
11027{
11028 if (*ptr < chunks[1])
11029 return 0;
11030 if (!chunks[2])
11031 return 0;
11032 *ptr = chunks[2] + ( *ptr - chunks[1] );
11033 return 1;
11034}
11035
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11036/*
11037 * Given a url parameter, find the starting position of the first occurence,
11038 * or NULL if the parameter is not found.
11039 *
11040 * Example: if query_string is "yo=mama;ye=daddy" and url_param_name is "ye",
11041 * the function will return query_string+8.
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11042 *
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11043 * Warning: this function returns a pointer that can point to the first chunk
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11044 * or the second chunk. The caller must be check the position before using the
11045 * result.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11046 */
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11047static const char *
11048find_url_param_pos(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11049 const char* url_param_name, size_t url_param_name_l,
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11050 char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11051{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11052 const char *pos, *last, *equal;
11053 const char **bufs = chunks;
11054 int l1, l2;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11055
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11056
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11057 pos = bufs[0];
11058 last = bufs[1];
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11059 while (pos < last) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11060 /* Check the equal. */
11061 equal = pos + url_param_name_l;
11062 if (fix_pointer_if_wrap(chunks, &equal)) {
11063 if (equal >= chunks[3])
11064 return NULL;
11065 } else {
11066 if (equal >= chunks[1])
11067 return NULL;
11068 }
11069 if (*equal == '=') {
11070 if (pos + url_param_name_l > last) {
11071 /* process wrap case, we detect a wrap. In this case, the
11072 * comparison is performed in two parts.
11073 */
11074
11075 /* This is the end, we dont have any other chunk. */
11076 if (bufs != chunks || !bufs[2])
11077 return NULL;
11078
11079 /* Compute the length of each part of the comparison. */
11080 l1 = last - pos;
11081 l2 = url_param_name_l - l1;
11082
11083 /* The second buffer is too short to contain the compared string. */
11084 if (bufs[2] + l2 > bufs[3])
11085 return NULL;
11086
11087 if (memcmp(pos, url_param_name, l1) == 0 &&
11088 memcmp(bufs[2], url_param_name+l1, l2) == 0)
11089 return pos;
11090
11091 /* Perform wrapping and jump the string who fail the comparison. */
11092 bufs += 2;
11093 pos = bufs[0] + l2;
11094 last = bufs[1];
11095
11096 } else {
11097 /* process a simple comparison. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11098 if (memcmp(pos, url_param_name, url_param_name_l) == 0)
11099 return pos;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11100 pos += url_param_name_l + 1;
11101 if (fix_pointer_if_wrap(chunks, &pos))
11102 last = bufs[2];
11103 }
11104 }
11105
11106 while (1) {
11107 /* Look for the next delimiter. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11108 while (pos < last && !is_param_delimiter(*pos, delim))
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11109 pos++;
11110 if (pos < last)
11111 break;
11112 /* process buffer wrapping. */
11113 if (bufs != chunks || !bufs[2])
11114 return NULL;
11115 bufs += 2;
11116 pos = bufs[0];
11117 last = bufs[1];
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11118 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11119 pos++;
11120 }
11121 return NULL;
11122}
11123
11124/*
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11125 * Given a url parameter name and a query string, find the next value.
11126 * An empty url_param_name matches the first available parameter.
11127 * If the parameter is found, 1 is returned and *vstart / *vend are updated to
11128 * respectively provide a pointer to the value and its end.
11129 * Otherwise, 0 is returned and vstart/vend are not modified.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11130 */
11131static int
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11132find_next_url_param(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11133 const char* url_param_name, size_t url_param_name_l,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11134 const char **vstart, const char **vend, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11135{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11136 const char *arg_start, *qs_end;
11137 const char *value_start, *value_end;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11138
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11139 arg_start = chunks[0];
11140 qs_end = chunks[1];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11141 if (url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11142 /* Looks for an argument name. */
11143 arg_start = find_url_param_pos(chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11144 url_param_name, url_param_name_l,
11145 delim);
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11146 /* Check for wrapping. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11147 if (arg_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11148 qs_end = chunks[3];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11149 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11150 if (!arg_start)
11151 return 0;
11152
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11153 if (!url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11154 while (1) {
11155 /* looks for the first argument. */
11156 value_start = memchr(arg_start, '=', qs_end - arg_start);
11157 if (!value_start) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11158 /* Check for wrapping. */
11159 if (arg_start >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11160 arg_start < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11161 chunks[2]) {
11162 arg_start = chunks[2];
11163 qs_end = chunks[3];
11164 continue;
11165 }
11166 return 0;
11167 }
11168 break;
11169 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11170 value_start++;
11171 }
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11172 else {
11173 /* Jump the argument length. */
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11174 value_start = arg_start + url_param_name_l + 1;
11175
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11176 /* Check for pointer wrapping. */
11177 if (fix_pointer_if_wrap(chunks, &value_start)) {
11178 /* Update the end pointer. */
11179 qs_end = chunks[3];
11180
11181 /* Check for overflow. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11182 if (value_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11183 return 0;
11184 }
11185 }
11186
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11187 value_end = value_start;
11188
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11189 while (1) {
11190 while ((value_end < qs_end) && !is_param_delimiter(*value_end, delim))
11191 value_end++;
11192 if (value_end < qs_end)
11193 break;
11194 /* process buffer wrapping. */
11195 if (value_end >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11196 value_end < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11197 chunks[2]) {
11198 value_end = chunks[2];
11199 qs_end = chunks[3];
11200 continue;
11201 }
11202 break;
11203 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11204
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11205 *vstart = value_start;
11206 *vend = value_end;
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11207 return 1;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11208}
11209
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11210/* This scans a URL-encoded query string. It takes an optionally wrapping
11211 * string whose first contigous chunk has its beginning in ctx->a[0] and end
11212 * in ctx->a[1], and the optional second part in (ctx->a[2]..ctx->a[3]). The
11213 * pointers are updated for next iteration before leaving.
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11214 */
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11215static int
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11216smp_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]11217{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11218 const char *vstart, *vend;
11219 struct chunk *temp;
11220 const char **chunks = (const char **)smp->ctx.a;
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11221
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11222 if (!find_next_url_param(chunks,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11223 name, name_len,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11224 &vstart, &vend,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11225 delim))
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11226 return 0;
11227
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11228 /* Create sample. If the value is contiguous, return the pointer as CONST,
11229 * if the value is wrapped, copy-it in a buffer.
11230 */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11231 smp->data.type = SMP_T_STR;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11232 if (chunks[2] &&
11233 vstart >= chunks[0] && vstart <= chunks[1] &&
11234 vend >= chunks[2] && vend <= chunks[3]) {
11235 /* Wrapped case. */
11236 temp = get_trash_chunk();
11237 memcpy(temp->str, vstart, chunks[1] - vstart);
11238 memcpy(temp->str + ( chunks[1] - vstart ), chunks[2], vend - chunks[2]);
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11239 smp->data.u.str.str = temp->str;
11240 smp->data.u.str.len = ( chunks[1] - vstart ) + ( vend - chunks[2] );
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11241 } else {
11242 /* Contiguous case. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11243 smp->data.u.str.str = (char *)vstart;
11244 smp->data.u.str.len = vend - vstart;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11245 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
11246 }
11247
11248 /* Update context, check wrapping. */
11249 chunks[0] = vend;
11250 if (chunks[2] && vend >= chunks[2] && vend <= chunks[3]) {
11251 chunks[1] = chunks[3];
11252 chunks[2] = NULL;
11253 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11254
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11255 if (chunks[0] < chunks[1])
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11256 smp->flags |= SMP_F_NOT_LAST;
11257
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11258 return 1;
11259}
11260
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11261/* This function iterates over each parameter of the query string. It uses
11262 * 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]11263 * parameter. Since it uses smp_fetch_param(), ctx->a[2..3] are both NULL.
11264 * An optional parameter name is passed in args[0], otherwise any parameter is
11265 * considered. It supports an optional delimiter argument for the beginning of
11266 * the string in args[1], which defaults to "?".
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11267 */
11268static int
11269smp_fetch_url_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11270{
11271 struct http_msg *msg;
11272 char delim = '?';
11273 const char *name;
11274 int name_len;
11275
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11276 if (!args ||
11277 (args[0].type && args[0].type != ARGT_STR) ||
11278 (args[1].type && args[1].type != ARGT_STR))
11279 return 0;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11280
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11281 name = "";
11282 name_len = 0;
11283 if (args->type == ARGT_STR) {
11284 name = args->data.str.str;
11285 name_len = args->data.str.len;
11286 }
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11287
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11288 if (args[1].type)
11289 delim = *args[1].data.str.str;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11290
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11291 if (!smp->ctx.a[0]) { // first call, find the query string
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11292 CHECK_HTTP_MESSAGE_FIRST();
11293
11294 msg = &smp->strm->txn->req;
11295
11296 smp->ctx.a[0] = find_param_list(msg->chn->buf->p + msg->sl.rq.u,
11297 msg->sl.rq.u_l, delim);
11298 if (!smp->ctx.a[0])
11299 return 0;
11300
11301 smp->ctx.a[1] = msg->chn->buf->p + msg->sl.rq.u + msg->sl.rq.u_l;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11302
11303 /* Assume that the context is filled with NULL pointer
11304 * before the first call.
11305 * smp->ctx.a[2] = NULL;
11306 * smp->ctx.a[3] = NULL;
11307 */
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11308 }
11309
11310 return smp_fetch_param(delim, name, name_len, args, smp, kw, private);
11311}
11312
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11313/* This function iterates over each parameter of the body. This requires
11314 * that the body has been waited for using http-buffer-request. It uses
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11315 * ctx->a[0] and ctx->a[1] to store the beginning and end of the first
11316 * contigous part of the body, and optionally ctx->a[2..3] to reference the
11317 * optional second part if the body wraps at the end of the buffer. An optional
11318 * parameter name is passed in args[0], otherwise any parameter is considered.
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11319 */
11320static int
11321smp_fetch_body_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11322{
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11323 struct http_msg *msg;
11324 unsigned long len;
11325 unsigned long block1;
11326 char *body;
11327 const char *name;
11328 int name_len;
11329
11330 if (!args || (args[0].type && args[0].type != ARGT_STR))
11331 return 0;
11332
11333 name = "";
11334 name_len = 0;
11335 if (args[0].type == ARGT_STR) {
11336 name = args[0].data.str.str;
11337 name_len = args[0].data.str.len;
11338 }
11339
11340 if (!smp->ctx.a[0]) { // first call, find the query string
11341 CHECK_HTTP_MESSAGE_FIRST();
11342
11343 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11344 msg = &smp->strm->txn->req;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11345 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11346 msg = &smp->strm->txn->rsp;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11347
11348 len = http_body_bytes(msg);
11349 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
11350
11351 block1 = len;
11352 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
11353 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
11354
11355 if (block1 == len) {
11356 /* buffer is not wrapped (or empty) */
11357 smp->ctx.a[0] = body;
11358 smp->ctx.a[1] = body + len;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11359
11360 /* Assume that the context is filled with NULL pointer
11361 * before the first call.
11362 * smp->ctx.a[2] = NULL;
11363 * smp->ctx.a[3] = NULL;
11364 */
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11365 }
11366 else {
11367 /* buffer is wrapped, we need to defragment it */
11368 smp->ctx.a[0] = body;
11369 smp->ctx.a[1] = body + block1;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11370 smp->ctx.a[2] = msg->chn->buf->data;
11371 smp->ctx.a[3] = msg->chn->buf->data + ( len - block1 );
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11372 }
11373 }
11374 return smp_fetch_param('&', name, name_len, args, smp, kw, private);
11375}
11376
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11377/* Return the signed integer value for the specified url parameter (see url_param
11378 * above).
11379 */
11380static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11381smp_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]11382{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11383 int ret = smp_fetch_url_param(args, smp, kw, private);
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11384
11385 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11386 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11387 smp->data.u.sint = strl2ic(smp->data.u.str.str, smp->data.u.str.len);
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11388 }
11389
11390 return ret;
11391}
11392
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11393/* This produces a 32-bit hash of the concatenation of the first occurrence of
11394 * the Host header followed by the path component if it begins with a slash ('/').
11395 * This means that '*' will not be added, resulting in exactly the first Host
11396 * entry. If no Host header is found, then the path is used. The resulting value
11397 * is hashed using the url hash followed by a full avalanche hash and provides a
11398 * 32-bit integer value. This fetch is useful for tracking per-URL activity on
11399 * high-traffic sites without having to store whole paths.
11400 * this differs from the base32 functions in that it includes the url parameters
11401 * as well as the path
11402 */
11403static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11404smp_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]11405{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11406 struct http_txn *txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11407 struct hdr_ctx ctx;
11408 unsigned int hash = 0;
11409 char *ptr, *beg, *end;
11410 int len;
11411
11412 CHECK_HTTP_MESSAGE_FIRST();
11413
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11414 txn = smp->strm->txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11415 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11416 if (http_find_header2("Host", 4, txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11417 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
11418 ptr = ctx.line + ctx.val;
11419 len = ctx.vlen;
11420 while (len--)
11421 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
11422 }
11423
11424 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11425 end = txn->req.chn->buf->p + txn->req.sl.rq.u + txn->req.sl.rq.u_l;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11426 beg = http_get_path(txn);
11427 if (!beg)
11428 beg = end;
11429
11430 for (ptr = beg; ptr < end ; ptr++);
11431
11432 if (beg < ptr && *beg == '/') {
11433 while (beg < ptr)
11434 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
11435 }
11436 hash = full_hash(hash);
11437
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11438 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11439 smp->data.u.sint = hash;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11440 smp->flags = SMP_F_VOL_1ST;
11441 return 1;
11442}
11443
11444/* This concatenates the source address with the 32-bit hash of the Host and
11445 * URL as returned by smp_fetch_base32(). The idea is to have per-source and
11446 * per-url counters. The result is a binary block from 8 to 20 bytes depending
11447 * on the source address length. The URL hash is stored before the address so
11448 * that in environments where IPv6 is insignificant, truncating the output to
11449 * 8 bytes would still work.
11450 */
11451static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11452smp_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]11453{
11454 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11455 struct connection *cli_conn = objt_conn(smp->sess->origin);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11456
Dragan Dosendb5af612016-06-16 11:23:01 +0200[diff] [blame]11457 if (!cli_conn)
11458 return 0;
11459
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11460 if (!smp_fetch_url32(args, smp, kw, private))
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11461 return 0;
11462
11463 temp = get_trash_chunk();
Dragan Dosene5f41332016-06-16 11:08:08 +0200[diff] [blame]11464 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
11465 temp->len += sizeof(unsigned int);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11466
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11467 switch (cli_conn->addr.from.ss_family) {
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11468 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11469 memcpy(temp->str + temp->len, &((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr, 4);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11470 temp->len += 4;
11471 break;
11472 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11473 memcpy(temp->str + temp->len, &((struct sockaddr_in6 *)&cli_conn->addr.from)->sin6_addr, 16);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11474 temp->len += 16;
11475 break;
11476 default:
11477 return 0;
11478 }
11479
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11480 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11481 smp->data.type = SMP_T_BIN;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11482 return 1;
11483}
11484
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11485/* This function is used to validate the arguments passed to any "hdr" fetch
11486 * keyword. These keywords support an optional positive or negative occurrence
11487 * number. We must ensure that the number is greater than -MAX_HDR_HISTORY. It
11488 * is assumed that the types are already the correct ones. Returns 0 on error,
11489 * non-zero if OK. If <err> is not NULL, it will be filled with a pointer to an
11490 * error message in case of error, that the caller is responsible for freeing.
11491 * The initial location must either be freeable or NULL.
11492 */
Thierry FOURNIER49f45af2014-12-08 19:50:43 +0100[diff] [blame]11493int val_hdr(struct arg *arg, char **err_msg)
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11494{
11495 if (arg && arg[1].type == ARGT_SINT && arg[1].data.sint < -MAX_HDR_HISTORY) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]11496 memprintf(err_msg, "header occurrence must be >= %d", -MAX_HDR_HISTORY);
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11497 return 0;
11498 }
11499 return 1;
11500}
11501
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11502/* takes an UINT value on input supposed to represent the time since EPOCH,
11503 * adds an optional offset found in args[0] and emits a string representing
11504 * the date in RFC-1123/5322 format.
11505 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11506static int sample_conv_http_date(const struct arg *args, struct sample *smp, void *private)
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11507{
Cyril Bontéf78d8962016-01-22 19:40:28 +0100[diff] [blame]11508 const char day[7][4] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11509 const char mon[12][4] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
11510 struct chunk *temp;
11511 struct tm *tm;
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11512 /* 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]11513 time_t curr_date = smp->data.u.sint & 0x007fffffffffffffLL;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11514
11515 /* add offset */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11516 if (args && (args[0].type == ARGT_SINT))
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11517 curr_date += args[0].data.sint;
11518
11519 tm = gmtime(&curr_date);
Thierry FOURNIERfac9ccf2015-07-08 00:15:20 +0200[diff] [blame]11520 if (!tm)
11521 return 0;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11522
11523 temp = get_trash_chunk();
11524 temp->len = snprintf(temp->str, temp->size - temp->len,
11525 "%s, %02d %s %04d %02d:%02d:%02d GMT",
11526 day[tm->tm_wday], tm->tm_mday, mon[tm->tm_mon], 1900+tm->tm_year,
11527 tm->tm_hour, tm->tm_min, tm->tm_sec);
11528
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11529 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11530 smp->data.type = SMP_T_STR;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11531 return 1;
11532}
11533
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11534/* Match language range with language tag. RFC2616 14.4:
11535 *
11536 * A language-range matches a language-tag if it exactly equals
11537 * the tag, or if it exactly equals a prefix of the tag such
11538 * that the first tag character following the prefix is "-".
11539 *
11540 * Return 1 if the strings match, else return 0.
11541 */
11542static inline int language_range_match(const char *range, int range_len,
11543 const char *tag, int tag_len)
11544{
11545 const char *end = range + range_len;
11546 const char *tend = tag + tag_len;
11547 while (range < end) {
11548 if (*range == '-' && tag == tend)
11549 return 1;
11550 if (*range != *tag || tag == tend)
11551 return 0;
11552 range++;
11553 tag++;
11554 }
11555 /* Return true only if the last char of the tag is matched. */
11556 return tag == tend;
11557}
11558
11559/* Arguments: The list of expected value, the number of parts returned and the separator */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11560static int sample_conv_q_prefered(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11561{
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11562 const char *al = smp->data.u.str.str;
11563 const char *end = al + smp->data.u.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11564 const char *token;
11565 int toklen;
11566 int qvalue;
11567 const char *str;
11568 const char *w;
11569 int best_q = 0;
11570
11571 /* Set the constant to the sample, because the output of the
11572 * function will be peek in the constant configuration string.
11573 */
11574 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11575 smp->data.u.str.size = 0;
11576 smp->data.u.str.str = "";
11577 smp->data.u.str.len = 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11578
11579 /* Parse the accept language */
11580 while (1) {
11581
11582 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11583 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11584 al++;
11585 if (al >= end)
11586 break;
11587
11588 /* Start of the fisrt word. */
11589 token = al;
11590
11591 /* Look for separator: isspace(), ',' or ';'. Next value if 0 length word. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11592 while (al < end && *al != ';' && *al != ',' && !isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11593 al++;
11594 if (al == token)
11595 goto expect_comma;
11596
11597 /* Length of the token. */
11598 toklen = al - token;
11599 qvalue = 1000;
11600
11601 /* Check if the token exists in the list. If the token not exists,
11602 * jump to the next token.
11603 */
11604 str = args[0].data.str.str;
11605 w = str;
11606 while (1) {
11607 if (*str == ';' || *str == '\0') {
11608 if (language_range_match(token, toklen, w, str-w))
11609 goto look_for_q;
11610 if (*str == '\0')
11611 goto expect_comma;
11612 w = str + 1;
11613 }
11614 str++;
11615 }
11616 goto expect_comma;
11617
11618look_for_q:
11619
11620 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11621 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11622 al++;
11623 if (al >= end)
11624 goto process_value;
11625
11626 /* If ',' is found, process the result */
11627 if (*al == ',')
11628 goto process_value;
11629
11630 /* If the character is different from ';', look
11631 * for the end of the header part in best effort.
11632 */
11633 if (*al != ';')
11634 goto expect_comma;
11635
11636 /* Assumes that the char is ';', now expect "q=". */
11637 al++;
11638
11639 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11640 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11641 al++;
11642 if (al >= end)
11643 goto process_value;
11644
11645 /* Expect 'q'. If no 'q', continue in best effort */
11646 if (*al != 'q')
11647 goto process_value;
11648 al++;
11649
11650 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11651 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11652 al++;
11653 if (al >= end)
11654 goto process_value;
11655
11656 /* Expect '='. If no '=', continue in best effort */
11657 if (*al != '=')
11658 goto process_value;
11659 al++;
11660
11661 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11662 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11663 al++;
11664 if (al >= end)
11665 goto process_value;
11666
11667 /* Parse the q value. */
11668 qvalue = parse_qvalue(al, &al);
11669
11670process_value:
11671
11672 /* If the new q value is the best q value, then store the associated
11673 * language in the response. If qvalue is the biggest value (1000),
11674 * break the process.
11675 */
11676 if (qvalue > best_q) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11677 smp->data.u.str.str = (char *)w;
11678 smp->data.u.str.len = str - w;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11679 if (qvalue >= 1000)
11680 break;
11681 best_q = qvalue;
11682 }
11683
11684expect_comma:
11685
11686 /* Expect comma or end. If the end is detected, quit the loop. */
11687 while (al < end && *al != ',')
11688 al++;
11689 if (al >= end)
11690 break;
11691
11692 /* Comma is found, jump it and restart the analyzer. */
11693 al++;
11694 }
11695
11696 /* Set default value if required. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11697 if (smp->data.u.str.len == 0 && args[1].type == ARGT_STR) {
11698 smp->data.u.str.str = args[1].data.str.str;
11699 smp->data.u.str.len = args[1].data.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11700 }
11701
11702 /* Return true only if a matching language was found. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11703 return smp->data.u.str.len != 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11704}
11705
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11706/* This fetch url-decode any input string. */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11707static int sample_conv_url_dec(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11708{
11709 /* If the constant flag is set or if not size is avalaible at
11710 * the end of the buffer, copy the string in other buffer
11711 * before decoding.
11712 */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11713 if (smp->flags & SMP_F_CONST || smp->data.u.str.size <= smp->data.u.str.len) {
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11714 struct chunk *str = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11715 memcpy(str->str, smp->data.u.str.str, smp->data.u.str.len);
11716 smp->data.u.str.str = str->str;
11717 smp->data.u.str.size = str->size;
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11718 smp->flags &= ~SMP_F_CONST;
11719 }
11720
11721 /* Add final \0 required by url_decode(), and convert the input string. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11722 smp->data.u.str.str[smp->data.u.str.len] = '\0';
11723 smp->data.u.str.len = url_decode(smp->data.u.str.str);
Christopher Fauleta2584792017-10-05 10:03:12 +0200[diff] [blame]11724 return (smp->data.u.str.len >= 0);
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11725}
11726
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11727static int smp_conv_req_capture(const struct arg *args, struct sample *smp, void *private)
11728{
11729 struct proxy *fe = strm_fe(smp->strm);
11730 int idx, i;
11731 struct cap_hdr *hdr;
11732 int len;
11733
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11734 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11735 return 0;
11736
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11737 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11738
11739 /* Check the availibity of the capture id. */
11740 if (idx > fe->nb_req_cap - 1)
11741 return 0;
11742
11743 /* Look for the original configuration. */
11744 for (hdr = fe->req_cap, i = fe->nb_req_cap - 1;
11745 hdr != NULL && i != idx ;
11746 i--, hdr = hdr->next);
11747 if (!hdr)
11748 return 0;
11749
11750 /* check for the memory allocation */
11751 if (smp->strm->req_cap[hdr->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]11752 smp->strm->req_cap[hdr->index] = pool_alloc(hdr->pool);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11753 if (smp->strm->req_cap[hdr->index] == NULL)
11754 return 0;
11755
11756 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11757 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11758 if (len > hdr->len)
11759 len = hdr->len;
11760
11761 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11762 memcpy(smp->strm->req_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11763 smp->strm->req_cap[idx][len] = '\0';
11764
11765 return 1;
11766}
11767
11768static int smp_conv_res_capture(const struct arg *args, struct sample *smp, void *private)
11769{
11770 struct proxy *fe = strm_fe(smp->strm);
11771 int idx, i;
11772 struct cap_hdr *hdr;
11773 int len;
11774
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11775 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11776 return 0;
11777
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11778 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11779
11780 /* Check the availibity of the capture id. */
11781 if (idx > fe->nb_rsp_cap - 1)
11782 return 0;
11783
11784 /* Look for the original configuration. */
11785 for (hdr = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
11786 hdr != NULL && i != idx ;
11787 i--, hdr = hdr->next);
11788 if (!hdr)
11789 return 0;
11790
11791 /* check for the memory allocation */
11792 if (smp->strm->res_cap[hdr->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]11793 smp->strm->res_cap[hdr->index] = pool_alloc(hdr->pool);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11794 if (smp->strm->res_cap[hdr->index] == NULL)
11795 return 0;
11796
11797 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11798 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11799 if (len > hdr->len)
11800 len = hdr->len;
11801
11802 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11803 memcpy(smp->strm->res_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11804 smp->strm->res_cap[idx][len] = '\0';
11805
11806 return 1;
11807}
11808
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11809/* This function executes one of the set-{method,path,query,uri} actions. It
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11810 * takes the string from the variable 'replace' with length 'len', then modifies
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11811 * the relevant part of the request line accordingly. Then it updates various
11812 * pointers to the next elements which were moved, and the total buffer length.
11813 * It finds the action to be performed in p[2], previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11814 * parse_set_req_line(). It returns 0 in case of success, -1 in case of internal
11815 * error, though this can be revisited when this code is finally exploited.
11816 *
11817 * 'action' can be '0' to replace method, '1' to replace path, '2' to replace
11818 * query string and 3 to replace uri.
11819 *
11820 * In query string case, the mark question '?' must be set at the start of the
11821 * string by the caller, event if the replacement query string is empty.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11822 */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11823int http_replace_req_line(int action, const char *replace, int len,
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11824 struct proxy *px, struct stream *s)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11825{
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11826 struct http_txn *txn = s->txn;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11827 char *cur_ptr, *cur_end;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11828 int offset = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11829 int delta;
11830
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11831 switch (action) {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11832 case 0: // method
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11833 cur_ptr = s->req.buf->p;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11834 cur_end = cur_ptr + txn->req.sl.rq.m_l;
11835
11836 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11837 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11838 txn->req.sl.rq.m_l += delta;
11839 txn->req.sl.rq.u += delta;
11840 txn->req.sl.rq.v += delta;
11841 break;
11842
11843 case 1: // path
11844 cur_ptr = http_get_path(txn);
11845 if (!cur_ptr)
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11846 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11847
11848 cur_end = cur_ptr;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11849 while (cur_end < s->req.buf->p + txn->req.sl.rq.u + txn->req.sl.rq.u_l && *cur_end != '?')
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11850 cur_end++;
11851
11852 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11853 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11854 txn->req.sl.rq.u_l += delta;
11855 txn->req.sl.rq.v += delta;
11856 break;
11857
11858 case 2: // query
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11859 offset = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11860 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11861 cur_end = cur_ptr + txn->req.sl.rq.u_l;
11862 while (cur_ptr < cur_end && *cur_ptr != '?')
11863 cur_ptr++;
11864
11865 /* skip the question mark or indicate that we must insert it
11866 * (but only if the format string is not empty then).
11867 */
11868 if (cur_ptr < cur_end)
11869 cur_ptr++;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11870 else if (len > 1)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11871 offset = 0;
11872
11873 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11874 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11875 txn->req.sl.rq.u_l += delta;
11876 txn->req.sl.rq.v += delta;
11877 break;
11878
11879 case 3: // uri
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11880 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11881 cur_end = cur_ptr + txn->req.sl.rq.u_l;
11882
11883 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11884 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11885 txn->req.sl.rq.u_l += delta;
11886 txn->req.sl.rq.v += delta;
11887 break;
11888
11889 default:
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11890 return -1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11891 }
11892
11893 /* commit changes and adjust end of message */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11894 delta = buffer_replace2(s->req.buf, cur_ptr, cur_end, replace + offset, len - offset);
Thierry FOURNIER7f6192c2015-04-26 18:01:40 +0200[diff] [blame]11895 txn->req.sl.rq.l += delta;
11896 txn->hdr_idx.v[0].len += delta;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11897 http_msg_move_end(&txn->req, delta);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11898 return 0;
11899}
11900
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11901/* This function replace the HTTP status code and the associated message. The
11902 * variable <status> contains the new status code. This function never fails.
11903 */
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11904void http_set_status(unsigned int status, const char *reason, struct stream *s)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11905{
11906 struct http_txn *txn = s->txn;
11907 char *cur_ptr, *cur_end;
11908 int delta;
11909 char *res;
11910 int c_l;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11911 const char *msg = reason;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11912 int msg_len;
11913
11914 chunk_reset(&trash);
11915
11916 res = ultoa_o(status, trash.str, trash.size);
11917 c_l = res - trash.str;
11918
11919 trash.str[c_l] = ' ';
11920 trash.len = c_l + 1;
11921
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11922 /* Do we have a custom reason format string? */
11923 if (msg == NULL)
11924 msg = get_reason(status);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11925 msg_len = strlen(msg);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11926 strncpy(&trash.str[trash.len], msg, trash.size - trash.len);
11927 trash.len += msg_len;
11928
11929 cur_ptr = s->res.buf->p + txn->rsp.sl.st.c;
11930 cur_end = s->res.buf->p + txn->rsp.sl.st.r + txn->rsp.sl.st.r_l;
11931
11932 /* commit changes and adjust message */
11933 delta = buffer_replace2(s->res.buf, cur_ptr, cur_end, trash.str, trash.len);
11934
11935 /* adjust res line offsets and lengths */
11936 txn->rsp.sl.st.r += c_l - txn->rsp.sl.st.c_l;
11937 txn->rsp.sl.st.c_l = c_l;
11938 txn->rsp.sl.st.r_l = msg_len;
11939
11940 delta = trash.len - (cur_end - cur_ptr);
11941 txn->rsp.sl.st.l += delta;
11942 txn->hdr_idx.v[0].len += delta;
11943 http_msg_move_end(&txn->rsp, delta);
11944}
11945
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11946/* This function executes one of the set-{method,path,query,uri} actions. It
11947 * builds a string in the trash from the specified format string. It finds
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]11948 * the action to be performed in <http.action>, previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11949 * parse_set_req_line(). The replacement action is excuted by the function
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]11950 * http_action_set_req_line(). It always returns ACT_RET_CONT. If an error
11951 * occurs the action is canceled, but the rule processing continue.
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11952 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11953enum act_return http_action_set_req_line(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11954 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11955{
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]11956 struct chunk *replace;
11957 enum act_return ret = ACT_RET_ERR;
11958
11959 replace = alloc_trash_chunk();
11960 if (!replace)
11961 goto leave;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11962
11963 /* If we have to create a query string, prepare a '?'. */
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11964 if (rule->arg.http.action == 2)
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]11965 replace->str[replace->len++] = '?';
11966 replace->len += build_logline(s, replace->str + replace->len, replace->size - replace->len,
11967 &rule->arg.http.logfmt);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11968
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]11969 http_replace_req_line(rule->arg.http.action, replace->str, replace->len, px, s);
11970
11971 ret = ACT_RET_CONT;
11972
11973leave:
11974 free_trash_chunk(replace);
11975 return ret;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11976}
11977
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11978/* This function is just a compliant action wrapper for "set-status". */
11979enum act_return action_http_set_status(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11980 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11981{
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11982 http_set_status(rule->arg.status.code, rule->arg.status.reason, s);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11983 return ACT_RET_CONT;
11984}
11985
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11986/* parse an http-request action among :
11987 * set-method
11988 * set-path
11989 * set-query
11990 * set-uri
11991 *
11992 * All of them accept a single argument of type string representing a log-format.
11993 * The resulting rule makes use of arg->act.p[0..1] to store the log-format list
11994 * 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]11995 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11996 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11997enum act_parse_ret parse_set_req_line(const char **args, int *orig_arg, struct proxy *px,
11998 struct act_rule *rule, char **err)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11999{
12000 int cur_arg = *orig_arg;
12001
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12002 rule->action = ACT_CUSTOM;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12003
12004 switch (args[0][4]) {
12005 case 'm' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12006 rule->arg.http.action = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12007 rule->action_ptr = http_action_set_req_line;
12008 break;
12009 case 'p' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12010 rule->arg.http.action = 1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12011 rule->action_ptr = http_action_set_req_line;
12012 break;
12013 case 'q' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12014 rule->arg.http.action = 2;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12015 rule->action_ptr = http_action_set_req_line;
12016 break;
12017 case 'u' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12018 rule->arg.http.action = 3;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12019 rule->action_ptr = http_action_set_req_line;
12020 break;
12021 default:
12022 memprintf(err, "internal error: unhandled action '%s'", args[0]);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12023 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12024 }
12025
12026 if (!*args[cur_arg] ||
12027 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
12028 memprintf(err, "expects exactly 1 argument <format>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12029 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12030 }
12031
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12032 LIST_INIT(&rule->arg.http.logfmt);
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12033 px->conf.args.ctx = ARGC_HRQ;
12034 if (!parse_logformat_string(args[cur_arg], px, &rule->arg.http.logfmt, LOG_OPT_HTTP,
12035 (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]12036 return ACT_RET_PRS_ERR;
12037 }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12038
12039 (*orig_arg)++;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12040 return ACT_RET_PRS_OK;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12041}
12042
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12043/* parse set-status action:
12044 * This action accepts a single argument of type int representing
12045 * an http status code. It returns ACT_RET_PRS_OK on success,
12046 * ACT_RET_PRS_ERR on error.
12047 */
12048enum act_parse_ret parse_http_set_status(const char **args, int *orig_arg, struct proxy *px,
12049 struct act_rule *rule, char **err)
12050{
12051 char *error;
12052
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12053 rule->action = ACT_CUSTOM;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12054 rule->action_ptr = action_http_set_status;
12055
12056 /* Check if an argument is available */
12057 if (!*args[*orig_arg]) {
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12058 memprintf(err, "expects 1 argument: <status>; or 3 arguments: <status> reason <fmt>");
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12059 return ACT_RET_PRS_ERR;
12060 }
12061
12062 /* convert status code as integer */
12063 rule->arg.status.code = strtol(args[*orig_arg], &error, 10);
12064 if (*error != '\0' || rule->arg.status.code < 100 || rule->arg.status.code > 999) {
12065 memprintf(err, "expects an integer status code between 100 and 999");
12066 return ACT_RET_PRS_ERR;
12067 }
12068
12069 (*orig_arg)++;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12070
12071 /* set custom reason string */
12072 rule->arg.status.reason = NULL; // If null, we use the default reason for the status code.
12073 if (*args[*orig_arg] && strcmp(args[*orig_arg], "reason") == 0 &&
12074 (*args[*orig_arg + 1] && strcmp(args[*orig_arg + 1], "if") != 0 && strcmp(args[*orig_arg + 1], "unless") != 0)) {
12075 (*orig_arg)++;
12076 rule->arg.status.reason = strdup(args[*orig_arg]);
12077 (*orig_arg)++;
12078 }
12079
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12080 return ACT_RET_PRS_OK;
12081}
12082
Willy Tarreau53275e82017-11-24 07:52:01 +0100[diff] [blame]12083/* This function executes the "reject" HTTP action. It clears the request and
12084 * response buffer without sending any response. It can be useful as an HTTP
12085 * alternative to the silent-drop action to defend against DoS attacks, and may
12086 * also be used with HTTP/2 to close a connection instead of just a stream.
12087 * The txn status is unchanged, indicating no response was sent. The termination
12088 * flags will indicate "PR". It always returns ACT_RET_STOP.
12089 */
12090enum act_return http_action_reject(struct act_rule *rule, struct proxy *px,
12091 struct session *sess, struct stream *s, int flags)
12092{
12093 channel_abort(&s->req);
12094 channel_abort(&s->res);
12095 s->req.analysers = 0;
12096 s->res.analysers = 0;
12097
12098 HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1);
12099 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1);
12100 if (sess->listener && sess->listener->counters)
12101 HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1);
12102
12103 if (!(s->flags & SF_ERR_MASK))
12104 s->flags |= SF_ERR_PRXCOND;
12105 if (!(s->flags & SF_FINST_MASK))
12106 s->flags |= SF_FINST_R;
12107
12108 return ACT_RET_CONT;
12109}
12110
12111/* parse the "reject" action:
12112 * This action takes no argument and returns ACT_RET_PRS_OK on success,
12113 * ACT_RET_PRS_ERR on error.
12114 */
12115enum act_parse_ret parse_http_action_reject(const char **args, int *orig_arg, struct proxy *px,
12116 struct act_rule *rule, char **err)
12117{
12118 rule->action = ACT_CUSTOM;
12119 rule->action_ptr = http_action_reject;
12120 return ACT_RET_PRS_OK;
12121}
12122
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12123/* This function executes the "capture" action. It executes a fetch expression,
12124 * turns the result into a string and puts it in a capture slot. It always
12125 * returns 1. If an error occurs the action is cancelled, but the rule
12126 * processing continues.
12127 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12128enum act_return http_action_req_capture(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12129 struct session *sess, struct stream *s, int flags)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12130{
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12131 struct sample *key;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12132 struct cap_hdr *h = rule->arg.cap.hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12133 char **cap = s->req_cap;
12134 int len;
12135
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12136 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]12137 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12138 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12139
12140 if (cap[h->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]12141 cap[h->index] = pool_alloc(h->pool);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12142
12143 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12144 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12145
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12146 len = key->data.u.str.len;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12147 if (len > h->len)
12148 len = h->len;
12149
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12150 memcpy(cap[h->index], key->data.u.str.str, len);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12151 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12152 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12153}
12154
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12155/* This function executes the "capture" action and store the result in a
12156 * capture slot if exists. It executes a fetch expression, turns the result
12157 * into a string and puts it in a capture slot. It always returns 1. If an
12158 * error occurs the action is cancelled, but the rule processing continues.
12159 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12160enum 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]12161 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12162{
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12163 struct sample *key;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12164 struct cap_hdr *h;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12165 char **cap = s->req_cap;
12166 struct proxy *fe = strm_fe(s);
12167 int len;
12168 int i;
12169
12170 /* Look for the original configuration. */
12171 for (h = fe->req_cap, i = fe->nb_req_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12172 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12173 i--, h = h->next);
12174 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12175 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12176
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12177 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]12178 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12179 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12180
12181 if (cap[h->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]12182 cap[h->index] = pool_alloc(h->pool);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12183
12184 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12185 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12186
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12187 len = key->data.u.str.len;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12188 if (len > h->len)
12189 len = h->len;
12190
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12191 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12192 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12193 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12194}
12195
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12196/* Check an "http-request capture" action.
12197 *
12198 * The function returns 1 in success case, otherwise, it returns 0 and err is
12199 * filled.
12200 */
12201int check_http_req_capture(struct act_rule *rule, struct proxy *px, char **err)
12202{
Christopher Fauletfd608dd2017-12-04 09:45:15 +0100[diff] [blame]12203 if (rule->action_ptr != http_action_req_capture_by_id)
12204 return 1;
12205
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12206 if (rule->arg.capid.idx >= px->nb_req_cap) {
12207 memprintf(err, "unable to find capture id '%d' referenced by http-request capture rule",
12208 rule->arg.capid.idx);
12209 return 0;
12210 }
12211
12212 return 1;
12213}
12214
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12215/* parse an "http-request capture" action. It takes a single argument which is
12216 * a sample fetch expression. It stores the expression into arg->act.p[0] and
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12217 * the allocated hdr_cap struct or the preallocated "id" into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12218 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12219 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12220enum act_parse_ret parse_http_req_capture(const char **args, int *orig_arg, struct proxy *px,
12221 struct act_rule *rule, char **err)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12222{
12223 struct sample_expr *expr;
12224 struct cap_hdr *hdr;
12225 int cur_arg;
Willy Tarreau3986ac12015-05-08 16:13:42 +0200[diff] [blame]12226 int len = 0;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12227
12228 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12229 if (strcmp(args[cur_arg], "if") == 0 ||
12230 strcmp(args[cur_arg], "unless") == 0)
12231 break;
12232
12233 if (cur_arg < *orig_arg + 3) {
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12234 memprintf(err, "expects <expression> [ 'len' <length> | id <idx> ]");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12235 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12236 }
12237
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12238 cur_arg = *orig_arg;
12239 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12240 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12241 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12242
12243 if (!(expr->fetch->val & SMP_VAL_FE_HRQ_HDR)) {
12244 memprintf(err,
12245 "fetch method '%s' extracts information from '%s', none of which is available here",
12246 args[cur_arg-1], sample_src_names(expr->fetch->use));
12247 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12248 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12249 }
12250
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12251 if (!args[cur_arg] || !*args[cur_arg]) {
12252 memprintf(err, "expects 'len or 'id'");
12253 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12254 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12255 }
12256
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12257 if (strcmp(args[cur_arg], "len") == 0) {
12258 cur_arg++;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12259
12260 if (!(px->cap & PR_CAP_FE)) {
12261 memprintf(err, "proxy '%s' has no frontend capability", px->id);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12262 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12263 }
12264
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12265 px->conf.args.ctx = ARGC_CAP;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12266
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12267 if (!args[cur_arg]) {
12268 memprintf(err, "missing length value");
12269 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12270 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12271 }
12272 /* we copy the table name for now, it will be resolved later */
12273 len = atoi(args[cur_arg]);
12274 if (len <= 0) {
12275 memprintf(err, "length must be > 0");
12276 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12277 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12278 }
12279 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12280
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12281 if (!len) {
12282 memprintf(err, "a positive 'len' argument is mandatory");
12283 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12284 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12285 }
12286
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]12287 hdr = calloc(1, sizeof(*hdr));
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12288 hdr->next = px->req_cap;
12289 hdr->name = NULL; /* not a header capture */
12290 hdr->namelen = 0;
12291 hdr->len = len;
12292 hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED);
12293 hdr->index = px->nb_req_cap++;
12294
12295 px->req_cap = hdr;
12296 px->to_log |= LW_REQHDR;
12297
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12298 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12299 rule->action_ptr = http_action_req_capture;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12300 rule->arg.cap.expr = expr;
12301 rule->arg.cap.hdr = hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12302 }
12303
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12304 else if (strcmp(args[cur_arg], "id") == 0) {
12305 int id;
12306 char *error;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12307
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12308 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12309
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12310 if (!args[cur_arg]) {
12311 memprintf(err, "missing id value");
12312 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12313 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12314 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12315
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12316 id = strtol(args[cur_arg], &error, 10);
12317 if (*error != '\0') {
12318 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12319 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12320 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12321 }
12322 cur_arg++;
12323
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12324 px->conf.args.ctx = ARGC_CAP;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12325
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12326 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12327 rule->action_ptr = http_action_req_capture_by_id;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12328 rule->check_ptr = check_http_req_capture;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12329 rule->arg.capid.expr = expr;
12330 rule->arg.capid.idx = id;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12331 }
12332
12333 else {
12334 memprintf(err, "expects 'len' or 'id', found '%s'", args[cur_arg]);
12335 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12336 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12337 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12338
12339 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12340 return ACT_RET_PRS_OK;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12341}
12342
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12343/* This function executes the "capture" action and store the result in a
12344 * capture slot if exists. It executes a fetch expression, turns the result
12345 * into a string and puts it in a capture slot. It always returns 1. If an
12346 * error occurs the action is cancelled, but the rule processing continues.
12347 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12348enum 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]12349 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12350{
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12351 struct sample *key;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12352 struct cap_hdr *h;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12353 char **cap = s->res_cap;
12354 struct proxy *fe = strm_fe(s);
12355 int len;
12356 int i;
12357
12358 /* Look for the original configuration. */
12359 for (h = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12360 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12361 i--, h = h->next);
12362 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12363 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12364
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12365 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]12366 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12367 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12368
12369 if (cap[h->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]12370 cap[h->index] = pool_alloc(h->pool);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12371
12372 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12373 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12374
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12375 len = key->data.u.str.len;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12376 if (len > h->len)
12377 len = h->len;
12378
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12379 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12380 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12381 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12382}
12383
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12384/* Check an "http-response capture" action.
12385 *
12386 * The function returns 1 in success case, otherwise, it returns 0 and err is
12387 * filled.
12388 */
12389int check_http_res_capture(struct act_rule *rule, struct proxy *px, char **err)
12390{
Christopher Fauletfd608dd2017-12-04 09:45:15 +0100[diff] [blame]12391 if (rule->action_ptr != http_action_res_capture_by_id)
12392 return 1;
12393
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12394 if (rule->arg.capid.idx >= px->nb_rsp_cap) {
12395 memprintf(err, "unable to find capture id '%d' referenced by http-response capture rule",
12396 rule->arg.capid.idx);
12397 return 0;
12398 }
12399
12400 return 1;
12401}
12402
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12403/* parse an "http-response capture" action. It takes a single argument which is
12404 * a sample fetch expression. It stores the expression into arg->act.p[0] and
12405 * the allocated hdr_cap struct od the preallocated id into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12406 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12407 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12408enum act_parse_ret parse_http_res_capture(const char **args, int *orig_arg, struct proxy *px,
12409 struct act_rule *rule, char **err)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12410{
12411 struct sample_expr *expr;
12412 int cur_arg;
12413 int id;
12414 char *error;
12415
12416 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12417 if (strcmp(args[cur_arg], "if") == 0 ||
12418 strcmp(args[cur_arg], "unless") == 0)
12419 break;
12420
12421 if (cur_arg < *orig_arg + 3) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12422 memprintf(err, "expects <expression> id <idx>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12423 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12424 }
12425
12426 cur_arg = *orig_arg;
12427 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12428 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12429 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12430
12431 if (!(expr->fetch->val & SMP_VAL_FE_HRS_HDR)) {
12432 memprintf(err,
12433 "fetch method '%s' extracts information from '%s', none of which is available here",
12434 args[cur_arg-1], sample_src_names(expr->fetch->use));
12435 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12436 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12437 }
12438
12439 if (!args[cur_arg] || !*args[cur_arg]) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12440 memprintf(err, "expects 'id'");
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12441 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12442 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12443 }
12444
12445 if (strcmp(args[cur_arg], "id") != 0) {
12446 memprintf(err, "expects 'id', found '%s'", args[cur_arg]);
12447 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12448 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12449 }
12450
12451 cur_arg++;
12452
12453 if (!args[cur_arg]) {
12454 memprintf(err, "missing id value");
12455 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12456 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12457 }
12458
12459 id = strtol(args[cur_arg], &error, 10);
12460 if (*error != '\0') {
12461 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12462 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12463 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12464 }
12465 cur_arg++;
12466
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12467 px->conf.args.ctx = ARGC_CAP;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12468
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12469 rule->action = ACT_CUSTOM;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12470 rule->action_ptr = http_action_res_capture_by_id;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12471 rule->check_ptr = check_http_res_capture;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12472 rule->arg.capid.expr = expr;
12473 rule->arg.capid.idx = id;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12474
12475 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12476 return ACT_RET_PRS_OK;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12477}
12478
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12479/*
12480 * Return the struct http_req_action_kw associated to a keyword.
12481 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12482struct action_kw *action_http_req_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12483{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12484 return action_lookup(&http_req_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12485}
12486
12487/*
12488 * Return the struct http_res_action_kw associated to a keyword.
12489 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12490struct action_kw *action_http_res_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12491{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12492 return action_lookup(&http_res_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12493}
12494
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12495
12496/* "show errors" handler for the CLI. Returns 0 if wants to continue, 1 to stop
12497 * now.
12498 */
12499static int cli_parse_show_errors(char **args, struct appctx *appctx, void *private)
12500{
12501 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
12502 return 1;
12503
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12504 if (*args[2]) {
12505 struct proxy *px;
12506
12507 px = proxy_find_by_name(args[2], 0, 0);
12508 if (px)
12509 appctx->ctx.errors.iid = px->uuid;
12510 else
12511 appctx->ctx.errors.iid = atoi(args[2]);
12512
12513 if (!appctx->ctx.errors.iid) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +0200[diff] [blame]12514 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12515 appctx->ctx.cli.msg = "No such proxy.\n";
12516 appctx->st0 = CLI_ST_PRINT;
12517 return 1;
12518 }
12519 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12520 else
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12521 appctx->ctx.errors.iid = -1; // dump all proxies
12522
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12523 appctx->ctx.errors.flag = 0;
12524 if (strcmp(args[3], "request") == 0)
12525 appctx->ctx.errors.flag |= 4; // ignore response
12526 else if (strcmp(args[3], "response") == 0)
12527 appctx->ctx.errors.flag |= 2; // ignore request
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12528 appctx->ctx.errors.px = NULL;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12529 return 0;
12530}
12531
12532/* This function dumps all captured errors onto the stream interface's
12533 * read buffer. It returns 0 if the output buffer is full and it needs
12534 * to be called again, otherwise non-zero.
12535 */
12536static int cli_io_handler_show_errors(struct appctx *appctx)
12537{
12538 struct stream_interface *si = appctx->owner;
12539 extern const char *monthname[12];
12540
12541 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
12542 return 1;
12543
12544 chunk_reset(&trash);
12545
12546 if (!appctx->ctx.errors.px) {
12547 /* the function had not been called yet, let's prepare the
12548 * buffer for a response.
12549 */
12550 struct tm tm;
12551
12552 get_localtime(date.tv_sec, &tm);
12553 chunk_appendf(&trash, "Total events captured on [%02d/%s/%04d:%02d:%02d:%02d.%03d] : %u\n",
12554 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12555 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(date.tv_usec/1000),
12556 error_snapshot_id);
12557
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12558 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12559 /* Socket buffer full. Let's try again later from the same point */
12560 si_applet_cant_put(si);
12561 return 0;
12562 }
12563
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12564 appctx->ctx.errors.px = proxies_list;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12565 appctx->ctx.errors.bol = 0;
12566 appctx->ctx.errors.ptr = -1;
12567 }
12568
12569 /* we have two inner loops here, one for the proxy, the other one for
12570 * the buffer.
12571 */
12572 while (appctx->ctx.errors.px) {
12573 struct error_snapshot *es;
12574
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12575 if ((appctx->ctx.errors.flag & 1) == 0) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12576 es = &appctx->ctx.errors.px->invalid_req;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12577 if (appctx->ctx.errors.flag & 2) // skip req
12578 goto next;
12579 }
12580 else {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12581 es = &appctx->ctx.errors.px->invalid_rep;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12582 if (appctx->ctx.errors.flag & 4) // skip resp
12583 goto next;
12584 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12585
12586 if (!es->when.tv_sec)
12587 goto next;
12588
12589 if (appctx->ctx.errors.iid >= 0 &&
12590 appctx->ctx.errors.px->uuid != appctx->ctx.errors.iid &&
12591 es->oe->uuid != appctx->ctx.errors.iid)
12592 goto next;
12593
12594 if (appctx->ctx.errors.ptr < 0) {
12595 /* just print headers now */
12596
12597 char pn[INET6_ADDRSTRLEN];
12598 struct tm tm;
12599 int port;
12600
12601 get_localtime(es->when.tv_sec, &tm);
12602 chunk_appendf(&trash, " \n[%02d/%s/%04d:%02d:%02d:%02d.%03d]",
12603 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12604 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(es->when.tv_usec/1000));
12605
12606 switch (addr_to_str(&es->src, pn, sizeof(pn))) {
12607 case AF_INET:
12608 case AF_INET6:
12609 port = get_host_port(&es->src);
12610 break;
12611 default:
12612 port = 0;
12613 }
12614
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12615 switch (appctx->ctx.errors.flag & 1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12616 case 0:
12617 chunk_appendf(&trash,
12618 " frontend %s (#%d): invalid request\n"
12619 " backend %s (#%d)",
12620 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12621 (es->oe->cap & PR_CAP_BE) ? es->oe->id : "<NONE>",
12622 (es->oe->cap & PR_CAP_BE) ? es->oe->uuid : -1);
12623 break;
12624 case 1:
12625 chunk_appendf(&trash,
12626 " backend %s (#%d): invalid response\n"
12627 " frontend %s (#%d)",
12628 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12629 es->oe->id, es->oe->uuid);
12630 break;
12631 }
12632
12633 chunk_appendf(&trash,
12634 ", server %s (#%d), event #%u\n"
12635 " src %s:%d, session #%d, session flags 0x%08x\n"
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]12636 " HTTP msg state %s(%d), msg flags 0x%08x, tx flags 0x%08x\n"
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12637 " HTTP chunk len %lld bytes, HTTP body len %lld bytes\n"
12638 " buffer flags 0x%08x, out %d bytes, total %lld bytes\n"
12639 " pending %d bytes, wrapping at %d, error at position %d:\n \n",
12640 es->srv ? es->srv->id : "<NONE>", es->srv ? es->srv->puid : -1,
12641 es->ev_id,
12642 pn, port, es->sid, es->s_flags,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]12643 h1_msg_state_str(es->state), es->state, es->m_flags, es->t_flags,
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12644 es->m_clen, es->m_blen,
12645 es->b_flags, es->b_out, es->b_tot,
12646 es->len, es->b_wrap, es->pos);
12647
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12648 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12649 /* Socket buffer full. Let's try again later from the same point */
12650 si_applet_cant_put(si);
12651 return 0;
12652 }
12653 appctx->ctx.errors.ptr = 0;
12654 appctx->ctx.errors.sid = es->sid;
12655 }
12656
12657 if (appctx->ctx.errors.sid != es->sid) {
12658 /* the snapshot changed while we were dumping it */
12659 chunk_appendf(&trash,
12660 " WARNING! update detected on this snapshot, dump interrupted. Please re-check!\n");
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12661 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12662 si_applet_cant_put(si);
12663 return 0;
12664 }
12665 goto next;
12666 }
12667
12668 /* OK, ptr >= 0, so we have to dump the current line */
12669 while (es->buf && appctx->ctx.errors.ptr < es->len && appctx->ctx.errors.ptr < global.tune.bufsize) {
12670 int newptr;
12671 int newline;
12672
12673 newline = appctx->ctx.errors.bol;
12674 newptr = dump_text_line(&trash, es->buf, global.tune.bufsize, es->len, &newline, appctx->ctx.errors.ptr);
12675 if (newptr == appctx->ctx.errors.ptr)
12676 return 0;
12677
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12678 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12679 /* Socket buffer full. Let's try again later from the same point */
12680 si_applet_cant_put(si);
12681 return 0;
12682 }
12683 appctx->ctx.errors.ptr = newptr;
12684 appctx->ctx.errors.bol = newline;
12685 };
12686 next:
12687 appctx->ctx.errors.bol = 0;
12688 appctx->ctx.errors.ptr = -1;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12689 appctx->ctx.errors.flag ^= 1;
12690 if (!(appctx->ctx.errors.flag & 1))
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12691 appctx->ctx.errors.px = appctx->ctx.errors.px->next;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12692 }
12693
12694 /* dump complete */
12695 return 1;
12696}
12697
12698/* register cli keywords */
12699static struct cli_kw_list cli_kws = {{ },{
12700 { { "show", "errors", NULL },
12701 "show errors : report last request and response errors for each proxy",
12702 cli_parse_show_errors, cli_io_handler_show_errors, NULL,
12703 },
12704 {{},}
12705}};
12706
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12707/************************************************************************/
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12708/* All supported ACL keywords must be declared here. */
12709/************************************************************************/
12710
12711/* Note: must not be declared <const> as its list will be overwritten.
12712 * Please take care of keeping this list alphabetically sorted.
12713 */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12714static struct acl_kw_list acl_kws = {ILH, {
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12715 { "base", "base", PAT_MATCH_STR },
12716 { "base_beg", "base", PAT_MATCH_BEG },
12717 { "base_dir", "base", PAT_MATCH_DIR },
12718 { "base_dom", "base", PAT_MATCH_DOM },
12719 { "base_end", "base", PAT_MATCH_END },
12720 { "base_len", "base", PAT_MATCH_LEN },
12721 { "base_reg", "base", PAT_MATCH_REG },
12722 { "base_sub", "base", PAT_MATCH_SUB },
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]12723
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12724 { "cook", "req.cook", PAT_MATCH_STR },
12725 { "cook_beg", "req.cook", PAT_MATCH_BEG },
12726 { "cook_dir", "req.cook", PAT_MATCH_DIR },
12727 { "cook_dom", "req.cook", PAT_MATCH_DOM },
12728 { "cook_end", "req.cook", PAT_MATCH_END },
12729 { "cook_len", "req.cook", PAT_MATCH_LEN },
12730 { "cook_reg", "req.cook", PAT_MATCH_REG },
12731 { "cook_sub", "req.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12732
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12733 { "hdr", "req.hdr", PAT_MATCH_STR },
12734 { "hdr_beg", "req.hdr", PAT_MATCH_BEG },
12735 { "hdr_dir", "req.hdr", PAT_MATCH_DIR },
12736 { "hdr_dom", "req.hdr", PAT_MATCH_DOM },
12737 { "hdr_end", "req.hdr", PAT_MATCH_END },
12738 { "hdr_len", "req.hdr", PAT_MATCH_LEN },
12739 { "hdr_reg", "req.hdr", PAT_MATCH_REG },
12740 { "hdr_sub", "req.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12741
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12742 /* these two declarations uses strings with list storage (in place
12743 * of tree storage). The basic match is PAT_MATCH_STR, but the indexation
12744 * and delete functions are relative to the list management. The parse
12745 * and match method are related to the corresponding fetch methods. This
12746 * is very particular ACL declaration mode.
12747 */
12748 { "http_auth_group", NULL, PAT_MATCH_STR, NULL, pat_idx_list_str, pat_del_list_ptr, NULL, pat_match_auth },
12749 { "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]12750
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12751 { "path", "path", PAT_MATCH_STR },
12752 { "path_beg", "path", PAT_MATCH_BEG },
12753 { "path_dir", "path", PAT_MATCH_DIR },
12754 { "path_dom", "path", PAT_MATCH_DOM },
12755 { "path_end", "path", PAT_MATCH_END },
12756 { "path_len", "path", PAT_MATCH_LEN },
12757 { "path_reg", "path", PAT_MATCH_REG },
12758 { "path_sub", "path", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12759
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12760 { "req_ver", "req.ver", PAT_MATCH_STR },
12761 { "resp_ver", "res.ver", PAT_MATCH_STR },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12762
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12763 { "scook", "res.cook", PAT_MATCH_STR },
12764 { "scook_beg", "res.cook", PAT_MATCH_BEG },
12765 { "scook_dir", "res.cook", PAT_MATCH_DIR },
12766 { "scook_dom", "res.cook", PAT_MATCH_DOM },
12767 { "scook_end", "res.cook", PAT_MATCH_END },
12768 { "scook_len", "res.cook", PAT_MATCH_LEN },
12769 { "scook_reg", "res.cook", PAT_MATCH_REG },
12770 { "scook_sub", "res.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12771
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12772 { "shdr", "res.hdr", PAT_MATCH_STR },
12773 { "shdr_beg", "res.hdr", PAT_MATCH_BEG },
12774 { "shdr_dir", "res.hdr", PAT_MATCH_DIR },
12775 { "shdr_dom", "res.hdr", PAT_MATCH_DOM },
12776 { "shdr_end", "res.hdr", PAT_MATCH_END },
12777 { "shdr_len", "res.hdr", PAT_MATCH_LEN },
12778 { "shdr_reg", "res.hdr", PAT_MATCH_REG },
12779 { "shdr_sub", "res.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12780
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12781 { "url", "url", PAT_MATCH_STR },
12782 { "url_beg", "url", PAT_MATCH_BEG },
12783 { "url_dir", "url", PAT_MATCH_DIR },
12784 { "url_dom", "url", PAT_MATCH_DOM },
12785 { "url_end", "url", PAT_MATCH_END },
12786 { "url_len", "url", PAT_MATCH_LEN },
12787 { "url_reg", "url", PAT_MATCH_REG },
12788 { "url_sub", "url", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12789
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12790 { "urlp", "urlp", PAT_MATCH_STR },
12791 { "urlp_beg", "urlp", PAT_MATCH_BEG },
12792 { "urlp_dir", "urlp", PAT_MATCH_DIR },
12793 { "urlp_dom", "urlp", PAT_MATCH_DOM },
12794 { "urlp_end", "urlp", PAT_MATCH_END },
12795 { "urlp_len", "urlp", PAT_MATCH_LEN },
12796 { "urlp_reg", "urlp", PAT_MATCH_REG },
12797 { "urlp_sub", "urlp", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12798
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100[diff] [blame]12799 { /* END */ },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12800}};
12801
12802/************************************************************************/
12803/* All supported pattern keywords must be declared here. */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12804/************************************************************************/
12805/* Note: must not be declared <const> as its list will be overwritten */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12806static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12807 { "base", smp_fetch_base, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12808 { "base32", smp_fetch_base32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12809 { "base32+src", smp_fetch_base32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12810
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]12811 /* capture are allocated and are permanent in the stream */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12812 { "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]12813
12814 /* retrieve these captures from the HTTP logs */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12815 { "capture.req.method", smp_fetch_capture_req_method, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12816 { "capture.req.uri", smp_fetch_capture_req_uri, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12817 { "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]12818
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12819 { "capture.res.hdr", smp_fetch_capture_header_res, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRSHP },
12820 { "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]12821
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12822 /* cookie is valid in both directions (eg: for "stick ...") but cook*
12823 * are only here to match the ACL's name, are request-only and are used
12824 * for ACL compatibility only.
12825 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12826 { "cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12827 { "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]12828 { "cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12829 { "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]12830
12831 /* hdr is valid in both directions (eg: for "stick ...") but hdr_* are
12832 * only here to match the ACL's name, are request-only and are used for
12833 * ACL compatibility only.
12834 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12835 { "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]12836 { "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]12837 { "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]12838 { "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]12839
Willy Tarreau0a0daec2013-04-02 22:44:58 +0200[diff] [blame]12840 { "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]12841 { "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]12842 { "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]12843 { "method", smp_fetch_meth, 0, NULL, SMP_T_METH, SMP_USE_HRQHP },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12844 { "path", smp_fetch_path, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]12845 { "query", smp_fetch_query, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12846
12847 /* HTTP protocol on the request path */
12848 { "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]12849 { "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]12850
12851 /* HTTP version on the request path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12852 { "req.ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
12853 { "req_ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12854
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]12855 { "req.body", smp_fetch_body, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12856 { "req.body_len", smp_fetch_body_len, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
12857 { "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]12858 { "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]12859
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]12860 { "req.hdrs", smp_fetch_hdrs, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]12861 { "req.hdrs_bin", smp_fetch_hdrs_bin, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12862
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12863 /* HTTP version on the response path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12864 { "res.ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
12865 { "resp_ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12866
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12867 /* 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]12868 { "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]12869 { "req.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12870 { "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]12871
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12872 { "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]12873 { "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]12874 { "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]12875 { "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]12876 { "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]12877 { "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]12878 { "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]12879
12880 /* 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]12881 { "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]12882 { "res.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12883 { "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]12884
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12885 { "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]12886 { "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]12887 { "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]12888 { "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]12889 { "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]12890 { "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]12891 { "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]12892
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12893 /* scook is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12894 { "scook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12895 { "scook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12896 { "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]12897 { "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]12898
12899 /* shdr is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12900 { "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]12901 { "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]12902 { "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]12903 { "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]12904
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12905 { "status", smp_fetch_stcode, 0, NULL, SMP_T_SINT, SMP_USE_HRSHP },
Thierry Fournier0e00dca2016-04-07 15:47:40 +0200[diff] [blame]12906 { "unique-id", smp_fetch_uniqueid, 0, NULL, SMP_T_STR, SMP_SRC_L4SRV },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12907 { "url", smp_fetch_url, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12908 { "url32", smp_fetch_url32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]12909 { "url32+src", smp_fetch_url32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12910 { "url_ip", smp_fetch_url_ip, 0, NULL, SMP_T_IPV4, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12911 { "url_port", smp_fetch_url_port, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]12912 { "url_param", smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12913 { "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]12914 { "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]12915 { /* END */ },
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12916}};
12917
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12918
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12919/************************************************************************/
12920/* All supported converter keywords must be declared here. */
12921/************************************************************************/
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12922/* Note: must not be declared <const> as its list will be overwritten */
12923static struct sample_conv_kw_list sample_conv_kws = {ILH, {
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12924 { "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]12925 { "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]12926 { "capture-req", smp_conv_req_capture, ARG1(1,SINT), NULL, SMP_T_STR, SMP_T_STR},
12927 { "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]12928 { "url_dec", sample_conv_url_dec, 0, NULL, SMP_T_STR, SMP_T_STR},
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12929 { NULL, NULL, 0, 0, 0 },
12930}};
12931
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12932
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12933/************************************************************************/
12934/* All supported http-request action keywords must be declared here. */
12935/************************************************************************/
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12936struct action_kw_list http_req_actions = {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12937 .kw = {
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12938 { "capture", parse_http_req_capture },
Willy Tarreau53275e82017-11-24 07:52:01 +0100[diff] [blame]12939 { "reject", parse_http_action_reject },
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12940 { "set-method", parse_set_req_line },
12941 { "set-path", parse_set_req_line },
12942 { "set-query", parse_set_req_line },
12943 { "set-uri", parse_set_req_line },
Willy Tarreaucb703b02015-04-03 09:52:01 +0200[diff] [blame]12944 { NULL, NULL }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12945 }
12946};
12947
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12948struct action_kw_list http_res_actions = {
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12949 .kw = {
12950 { "capture", parse_http_res_capture },
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12951 { "set-status", parse_http_set_status },
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12952 { NULL, NULL }
12953 }
12954};
12955
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12956__attribute__((constructor))
12957static void __http_protocol_init(void)
12958{
12959 acl_register_keywords(&acl_kws);
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]12960 sample_register_fetches(&sample_fetch_keywords);
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12961 sample_register_convs(&sample_conv_kws);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12962 http_req_keywords_register(&http_req_actions);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12963 http_res_keywords_register(&http_res_actions);
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12964 cli_register_kw(&cli_kws);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12965}
12966
12967
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]12968/*
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]12969 * Local variables:
12970 * c-indent-level: 8
12971 * c-basic-offset: 8
12972 * End:
12973 */