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git01.mediatek.com / haproxy / 0048dd04c9a6e9b9c7def8e7060793290e0c36ff / . / src / proto_http.c
blob: 64bd4109feec5feeace26d4e0104dc52c7cd48f4 [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>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200[diff] [blame]29#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +0200[diff] [blame]30#include <common/compat.h>
31#include <common/config.h>
Willy Tarreaua4cd1f52006-12-16 19:57:26 +0100[diff] [blame]32#include <common/debug.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +0200[diff] [blame]33#include <common/memory.h>
34#include <common/mini-clist.h>
35#include <common/standard.h>
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200[diff] [blame]36#include <common/ticks.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +0200[diff] [blame]37#include <common/time.h>
38#include <common/uri_auth.h>
39#include <common/version.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]40
41#include <types/capture.h>
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]42#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]43#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]44#include <types/global.h>
William Lallemand71bd11a2017-11-20 19:13:14 +0100[diff] [blame]45#include <types/cache.h>
William Lallemand9ed62032016-11-21 17:49:11 +0100[diff] [blame]46#include <types/stats.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]47
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]48#include <proto/acl.h>
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]49#include <proto/action.h>
Willy Tarreau61612d42012-04-19 18:42:05 +0200[diff] [blame]50#include <proto/arg.h>
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]51#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]52#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200[diff] [blame]53#include <proto/channel.h>
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]54#include <proto/checks.h>
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]55#include <proto/cli.h>
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]56#include <proto/compression.h>
William Lallemand9ed62032016-11-21 17:49:11 +0100[diff] [blame]57#include <proto/stats.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]58#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]59#include <proto/filters.h>
Willy Tarreau03fa5df2010-05-24 21:02:37 +0200[diff] [blame]60#include <proto/frontend.h>
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]61#include <proto/h1.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]62#include <proto/log.h>
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]63#include <proto/hdr_idx.h>
Thierry FOURNIERed66c292013-11-28 11:05:19 +0100[diff] [blame]64#include <proto/pattern.h>
Willy Tarreaub6866442008-07-14 23:54:42 +0200[diff] [blame]65#include <proto/proto_tcp.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]66#include <proto/proto_http.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +0100[diff] [blame]67#include <proto/proxy.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]68#include <proto/queue.h>
Willy Tarreaucd3b0942012-04-27 21:52:18 +0200[diff] [blame]69#include <proto/sample.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +0100[diff] [blame]70#include <proto/server.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]71#include <proto/stream.h>
Willy Tarreaucff64112008-11-03 06:26:53 +0100[diff] [blame]72#include <proto/stream_interface.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]73#include <proto/task.h>
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]74#include <proto/pattern.h>
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]75#include <proto/vars.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]76
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]77const char HTTP_100[] =
78 "HTTP/1.1 100 Continue\r\n\r\n";
79
80const struct chunk http_100_chunk = {
81 .str = (char *)&HTTP_100,
82 .len = sizeof(HTTP_100)-1
83};
84
Willy Tarreaua9679ac2010-01-03 17:32:57 +0100[diff] [blame]85/* Warning: no "connection" header is provided with the 3xx messages below */
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200[diff] [blame]86const char *HTTP_301 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]87 "HTTP/1.1 301 Moved Permanently\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]88 "Content-length: 0\r\n"
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200[diff] [blame]89 "Location: "; /* not terminated since it will be concatenated with the URL */
90
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]91const char *HTTP_302 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]92 "HTTP/1.1 302 Found\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]93 "Cache-Control: no-cache\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]94 "Content-length: 0\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]95 "Location: "; /* not terminated since it will be concatenated with the URL */
96
97/* same as 302 except that the browser MUST retry with the GET method */
98const char *HTTP_303 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]99 "HTTP/1.1 303 See Other\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]100 "Cache-Control: no-cache\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]101 "Content-length: 0\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]102 "Location: "; /* not terminated since it will be concatenated with the URL */
103
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]104
105/* same as 302 except that the browser MUST retry with the same method */
106const char *HTTP_307 =
107 "HTTP/1.1 307 Temporary Redirect\r\n"
108 "Cache-Control: no-cache\r\n"
109 "Content-length: 0\r\n"
110 "Location: "; /* not terminated since it will be concatenated with the URL */
111
112/* same as 301 except that the browser MUST retry with the same method */
113const char *HTTP_308 =
114 "HTTP/1.1 308 Permanent Redirect\r\n"
115 "Content-length: 0\r\n"
116 "Location: "; /* not terminated since it will be concatenated with the URL */
117
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]118/* Warning: this one is an sprintf() fmt string, with <realm> as its only argument */
119const char *HTTP_401_fmt =
120 "HTTP/1.0 401 Unauthorized\r\n"
121 "Cache-Control: no-cache\r\n"
122 "Connection: close\r\n"
Willy Tarreau791d66d2006-07-08 16:53:38 +0200[diff] [blame]123 "Content-Type: text/html\r\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]124 "WWW-Authenticate: Basic realm=\"%s\"\r\n"
125 "\r\n"
126 "<html><body><h1>401 Unauthorized</h1>\nYou need a valid user and password to access this content.\n</body></html>\n";
127
Willy Tarreau844a7e72010-01-31 21:46:18 +0100[diff] [blame]128const char *HTTP_407_fmt =
129 "HTTP/1.0 407 Unauthorized\r\n"
130 "Cache-Control: no-cache\r\n"
131 "Connection: close\r\n"
132 "Content-Type: text/html\r\n"
133 "Proxy-Authenticate: Basic realm=\"%s\"\r\n"
134 "\r\n"
Godbach1f1fae62014-12-17 16:32:05 +0800[diff] [blame]135 "<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]136
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]137
138const int http_err_codes[HTTP_ERR_SIZE] = {
Willy Tarreauae94d4d2011-05-11 16:28:49 +0200[diff] [blame]139 [HTTP_ERR_200] = 200, /* used by "monitor-uri" */
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]140 [HTTP_ERR_400] = 400,
141 [HTTP_ERR_403] = 403,
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]142 [HTTP_ERR_405] = 405,
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]143 [HTTP_ERR_408] = 408,
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]144 [HTTP_ERR_425] = 425,
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]145 [HTTP_ERR_429] = 429,
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]146 [HTTP_ERR_500] = 500,
147 [HTTP_ERR_502] = 502,
148 [HTTP_ERR_503] = 503,
149 [HTTP_ERR_504] = 504,
150};
151
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]152static const char *http_err_msgs[HTTP_ERR_SIZE] = {
Willy Tarreauae94d4d2011-05-11 16:28:49 +0200[diff] [blame]153 [HTTP_ERR_200] =
154 "HTTP/1.0 200 OK\r\n"
155 "Cache-Control: no-cache\r\n"
156 "Connection: close\r\n"
157 "Content-Type: text/html\r\n"
158 "\r\n"
159 "<html><body><h1>200 OK</h1>\nService ready.\n</body></html>\n",
160
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]161 [HTTP_ERR_400] =
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]162 "HTTP/1.0 400 Bad request\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]163 "Cache-Control: no-cache\r\n"
164 "Connection: close\r\n"
165 "Content-Type: text/html\r\n"
166 "\r\n"
167 "<html><body><h1>400 Bad request</h1>\nYour browser sent an invalid request.\n</body></html>\n",
168
169 [HTTP_ERR_403] =
170 "HTTP/1.0 403 Forbidden\r\n"
171 "Cache-Control: no-cache\r\n"
172 "Connection: close\r\n"
173 "Content-Type: text/html\r\n"
174 "\r\n"
175 "<html><body><h1>403 Forbidden</h1>\nRequest forbidden by administrative rules.\n</body></html>\n",
176
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]177 [HTTP_ERR_405] =
178 "HTTP/1.0 405 Method Not Allowed\r\n"
179 "Cache-Control: no-cache\r\n"
180 "Connection: close\r\n"
181 "Content-Type: text/html\r\n"
182 "\r\n"
183 "<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",
184
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]185 [HTTP_ERR_408] =
186 "HTTP/1.0 408 Request Time-out\r\n"
187 "Cache-Control: no-cache\r\n"
188 "Connection: close\r\n"
189 "Content-Type: text/html\r\n"
190 "\r\n"
191 "<html><body><h1>408 Request Time-out</h1>\nYour browser didn't send a complete request in time.\n</body></html>\n",
192
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]193 [HTTP_ERR_425] =
194 "HTTP/1.0 425 Too Early\r\n"
195 "Cache-Control: no-cache\r\n"
196 "Connection: close\r\n"
197 "Content-Type: text/html\r\n"
198 "\r\n"
199 "<html><body><h1>425 Too Early</h1>\nYour browser sent early data.\n</body></html>\n",
200
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]201 [HTTP_ERR_429] =
202 "HTTP/1.0 429 Too Many Requests\r\n"
203 "Cache-Control: no-cache\r\n"
204 "Connection: close\r\n"
205 "Content-Type: text/html\r\n"
206 "\r\n"
207 "<html><body><h1>429 Too Many Requests</h1>\nYou have sent too many requests in a given amount of time.\n</body></html>\n",
208
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]209 [HTTP_ERR_500] =
Jarno Huuskonen16ad94a2017-01-09 14:17:10 +0200[diff] [blame]210 "HTTP/1.0 500 Internal Server Error\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]211 "Cache-Control: no-cache\r\n"
212 "Connection: close\r\n"
213 "Content-Type: text/html\r\n"
214 "\r\n"
Jarno Huuskonen16ad94a2017-01-09 14:17:10 +0200[diff] [blame]215 "<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]216
217 [HTTP_ERR_502] =
218 "HTTP/1.0 502 Bad Gateway\r\n"
219 "Cache-Control: no-cache\r\n"
220 "Connection: close\r\n"
221 "Content-Type: text/html\r\n"
222 "\r\n"
223 "<html><body><h1>502 Bad Gateway</h1>\nThe server returned an invalid or incomplete response.\n</body></html>\n",
224
225 [HTTP_ERR_503] =
226 "HTTP/1.0 503 Service Unavailable\r\n"
227 "Cache-Control: no-cache\r\n"
228 "Connection: close\r\n"
229 "Content-Type: text/html\r\n"
230 "\r\n"
231 "<html><body><h1>503 Service Unavailable</h1>\nNo server is available to handle this request.\n</body></html>\n",
232
233 [HTTP_ERR_504] =
234 "HTTP/1.0 504 Gateway Time-out\r\n"
235 "Cache-Control: no-cache\r\n"
236 "Connection: close\r\n"
237 "Content-Type: text/html\r\n"
238 "\r\n"
239 "<html><body><h1>504 Gateway Time-out</h1>\nThe server didn't respond in time.\n</body></html>\n",
240
241};
242
Cyril Bonté19979e12012-04-04 12:57:21 +0200[diff] [blame]243/* status codes available for the stats admin page (strictly 4 chars length) */
244const char *stat_status_codes[STAT_STATUS_SIZE] = {
245 [STAT_STATUS_DENY] = "DENY",
246 [STAT_STATUS_DONE] = "DONE",
247 [STAT_STATUS_ERRP] = "ERRP",
248 [STAT_STATUS_EXCD] = "EXCD",
249 [STAT_STATUS_NONE] = "NONE",
250 [STAT_STATUS_PART] = "PART",
251 [STAT_STATUS_UNKN] = "UNKN",
252};
253
254
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]255/* List head of all known action keywords for "http-request" */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]256struct action_kw_list http_req_keywords = {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]257 .list = LIST_HEAD_INIT(http_req_keywords.list)
258};
259
260/* List head of all known action keywords for "http-response" */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]261struct action_kw_list http_res_keywords = {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]262 .list = LIST_HEAD_INIT(http_res_keywords.list)
263};
264
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]265/* We must put the messages here since GCC cannot initialize consts depending
266 * on strlen().
267 */
268struct chunk http_err_chunks[HTTP_ERR_SIZE];
269
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]270/* this struct is used between calls to smp_fetch_hdr() or smp_fetch_cookie() */
Christopher Faulet1bc04c72017-10-29 20:14:08 +0100[diff] [blame]271static THREAD_LOCAL struct hdr_ctx static_hdr_ctx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]272
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]273#define FD_SETS_ARE_BITFIELDS
274#ifdef FD_SETS_ARE_BITFIELDS
275/*
276 * This map is used with all the FD_* macros to check whether a particular bit
277 * is set or not. Each bit represents an ACSII code. FD_SET() sets those bytes
278 * which should be encoded. When FD_ISSET() returns non-zero, it means that the
279 * byte should be encoded. Be careful to always pass bytes from 0 to 255
280 * exclusively to the macros.
281 */
282fd_set hdr_encode_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
283fd_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]284fd_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]285
286#else
287#error "Check if your OS uses bitfields for fd_sets"
288#endif
289
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]290static 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]291
David Carlier7365f7d2016-04-04 11:54:42 +0100[diff] [blame]292static inline int http_msg_forward_body(struct stream *s, struct http_msg *msg);
293static inline int http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]294
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]295/* This function returns a reason associated with the HTTP status.
296 * This function never fails, a message is always returned.
297 */
298const char *get_reason(unsigned int status)
299{
300 switch (status) {
301 case 100: return "Continue";
302 case 101: return "Switching Protocols";
303 case 102: return "Processing";
304 case 200: return "OK";
305 case 201: return "Created";
306 case 202: return "Accepted";
307 case 203: return "Non-Authoritative Information";
308 case 204: return "No Content";
309 case 205: return "Reset Content";
310 case 206: return "Partial Content";
311 case 207: return "Multi-Status";
312 case 210: return "Content Different";
313 case 226: return "IM Used";
314 case 300: return "Multiple Choices";
315 case 301: return "Moved Permanently";
316 case 302: return "Moved Temporarily";
317 case 303: return "See Other";
318 case 304: return "Not Modified";
319 case 305: return "Use Proxy";
320 case 307: return "Temporary Redirect";
321 case 308: return "Permanent Redirect";
322 case 310: return "Too many Redirects";
323 case 400: return "Bad Request";
324 case 401: return "Unauthorized";
325 case 402: return "Payment Required";
326 case 403: return "Forbidden";
327 case 404: return "Not Found";
328 case 405: return "Method Not Allowed";
329 case 406: return "Not Acceptable";
330 case 407: return "Proxy Authentication Required";
331 case 408: return "Request Time-out";
332 case 409: return "Conflict";
333 case 410: return "Gone";
334 case 411: return "Length Required";
335 case 412: return "Precondition Failed";
336 case 413: return "Request Entity Too Large";
337 case 414: return "Request-URI Too Long";
338 case 415: return "Unsupported Media Type";
339 case 416: return "Requested range unsatisfiable";
340 case 417: return "Expectation failed";
341 case 418: return "I'm a teapot";
342 case 422: return "Unprocessable entity";
343 case 423: return "Locked";
344 case 424: return "Method failure";
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]345 case 425: return "Too Early";
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]346 case 426: return "Upgrade Required";
347 case 428: return "Precondition Required";
348 case 429: return "Too Many Requests";
349 case 431: return "Request Header Fields Too Large";
350 case 449: return "Retry With";
351 case 450: return "Blocked by Windows Parental Controls";
352 case 451: return "Unavailable For Legal Reasons";
353 case 456: return "Unrecoverable Error";
354 case 499: return "client has closed connection";
355 case 500: return "Internal Server Error";
356 case 501: return "Not Implemented";
Jarno Huuskonen59af2df2016-12-28 10:49:01 +0200[diff] [blame]357 case 502: return "Bad Gateway or Proxy Error";
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]358 case 503: return "Service Unavailable";
359 case 504: return "Gateway Time-out";
360 case 505: return "HTTP Version not supported";
361 case 506: return "Variant also negociate";
362 case 507: return "Insufficient storage";
363 case 508: return "Loop detected";
364 case 509: return "Bandwidth Limit Exceeded";
365 case 510: return "Not extended";
366 case 511: return "Network authentication required";
367 case 520: return "Web server is returning an unknown error";
368 default:
369 switch (status) {
370 case 100 ... 199: return "Informational";
371 case 200 ... 299: return "Success";
372 case 300 ... 399: return "Redirection";
373 case 400 ... 499: return "Client Error";
374 case 500 ... 599: return "Server Error";
375 default: return "Other";
376 }
377 }
378}
379
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]380/* This function returns HTTP_ERR_<num> (enum) matching http status code.
381 * Returned value should match codes from http_err_codes.
382 */
383static const int http_get_status_idx(unsigned int status)
384{
385 switch (status) {
386 case 200: return HTTP_ERR_200;
387 case 400: return HTTP_ERR_400;
388 case 403: return HTTP_ERR_403;
389 case 405: return HTTP_ERR_405;
390 case 408: return HTTP_ERR_408;
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]391 case 425: return HTTP_ERR_425;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]392 case 429: return HTTP_ERR_429;
393 case 500: return HTTP_ERR_500;
394 case 502: return HTTP_ERR_502;
395 case 503: return HTTP_ERR_503;
396 case 504: return HTTP_ERR_504;
397 default: return HTTP_ERR_500;
398 }
399}
400
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]401void init_proto_http()
402{
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]403 int i;
404 char *tmp;
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]405 int msg;
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]406
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]407 for (msg = 0; msg < HTTP_ERR_SIZE; msg++) {
408 if (!http_err_msgs[msg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]409 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]410 abort();
411 }
412
413 http_err_chunks[msg].str = (char *)http_err_msgs[msg];
414 http_err_chunks[msg].len = strlen(http_err_msgs[msg]);
415 }
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]416
417 /* initialize the log header encoding map : '{|}"#' should be encoded with
418 * '#' as prefix, as well as non-printable characters ( <32 or >= 127 ).
419 * URL encoding only requires '"', '#' to be encoded as well as non-
420 * printable characters above.
421 */
422 memset(hdr_encode_map, 0, sizeof(hdr_encode_map));
423 memset(url_encode_map, 0, sizeof(url_encode_map));
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]424 memset(http_encode_map, 0, sizeof(url_encode_map));
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]425 for (i = 0; i < 32; i++) {
426 FD_SET(i, hdr_encode_map);
427 FD_SET(i, url_encode_map);
428 }
429 for (i = 127; i < 256; i++) {
430 FD_SET(i, hdr_encode_map);
431 FD_SET(i, url_encode_map);
432 }
433
434 tmp = "\"#{|}";
435 while (*tmp) {
436 FD_SET(*tmp, hdr_encode_map);
437 tmp++;
438 }
439
440 tmp = "\"#";
441 while (*tmp) {
442 FD_SET(*tmp, url_encode_map);
443 tmp++;
444 }
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]445
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]446 /* initialize the http header encoding map. The draft httpbis define the
447 * header content as:
448 *
449 * HTTP-message = start-line
450 * *( header-field CRLF )
451 * CRLF
452 * [ message-body ]
453 * header-field = field-name ":" OWS field-value OWS
454 * field-value = *( field-content / obs-fold )
455 * field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
456 * obs-fold = CRLF 1*( SP / HTAB )
457 * field-vchar = VCHAR / obs-text
458 * VCHAR = %x21-7E
459 * obs-text = %x80-FF
460 *
461 * All the chars are encoded except "VCHAR", "obs-text", SP and HTAB.
462 * The encoded chars are form 0x00 to 0x08, 0x0a to 0x1f and 0x7f. The
463 * "obs-fold" is volontary forgotten because haproxy remove this.
464 */
465 memset(http_encode_map, 0, sizeof(http_encode_map));
466 for (i = 0x00; i <= 0x08; i++)
467 FD_SET(i, http_encode_map);
468 for (i = 0x0a; i <= 0x1f; i++)
469 FD_SET(i, http_encode_map);
470 FD_SET(0x7f, http_encode_map);
471
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]472 /* memory allocations */
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]473 pool_head_http_txn = create_pool("http_txn", sizeof(struct http_txn), MEM_F_SHARED);
474 pool_head_uniqueid = create_pool("uniqueid", UNIQUEID_LEN, MEM_F_SHARED);
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]475}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]476
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]477/*
478 * We have 26 list of methods (1 per first letter), each of which can have
479 * up to 3 entries (2 valid, 1 null).
480 */
481struct http_method_desc {
Willy Tarreauc8987b32013-12-06 23:43:17 +0100[diff] [blame]482 enum http_meth_t meth;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]483 int len;
484 const char text[8];
485};
486
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]487const struct http_method_desc http_methods[26][3] = {
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]488 ['C' - 'A'] = {
489 [0] = { .meth = HTTP_METH_CONNECT , .len=7, .text="CONNECT" },
490 },
491 ['D' - 'A'] = {
492 [0] = { .meth = HTTP_METH_DELETE , .len=6, .text="DELETE" },
493 },
494 ['G' - 'A'] = {
495 [0] = { .meth = HTTP_METH_GET , .len=3, .text="GET" },
496 },
497 ['H' - 'A'] = {
498 [0] = { .meth = HTTP_METH_HEAD , .len=4, .text="HEAD" },
499 },
Christopher Fauletd57ad642015-07-31 14:26:57 +0200[diff] [blame]500 ['O' - 'A'] = {
501 [0] = { .meth = HTTP_METH_OPTIONS , .len=7, .text="OPTIONS" },
502 },
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]503 ['P' - 'A'] = {
504 [0] = { .meth = HTTP_METH_POST , .len=4, .text="POST" },
505 [1] = { .meth = HTTP_METH_PUT , .len=3, .text="PUT" },
506 },
507 ['T' - 'A'] = {
508 [0] = { .meth = HTTP_METH_TRACE , .len=5, .text="TRACE" },
509 },
510 /* rest is empty like this :
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]511 * [0] = { .meth = HTTP_METH_OTHER , .len=0, .text="" },
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]512 */
513};
514
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]515const struct http_method_name http_known_methods[HTTP_METH_OTHER] = {
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]516 [HTTP_METH_OPTIONS] = { "OPTIONS", 7 },
517 [HTTP_METH_GET] = { "GET", 3 },
518 [HTTP_METH_HEAD] = { "HEAD", 4 },
519 [HTTP_METH_POST] = { "POST", 4 },
520 [HTTP_METH_PUT] = { "PUT", 3 },
521 [HTTP_METH_DELETE] = { "DELETE", 6 },
522 [HTTP_METH_TRACE] = { "TRACE", 5 },
523 [HTTP_METH_CONNECT] = { "CONNECT", 7 },
524};
525
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]526/*
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]527 * Adds a header and its CRLF at the tail of the message's buffer, just before
528 * the last CRLF. Text length is measured first, so it cannot be NULL.
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]529 * The header is also automatically added to the index <hdr_idx>, and the end
530 * of headers is automatically adjusted. The number of bytes added is returned
531 * on success, otherwise <0 is returned indicating an error.
532 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]533int 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]534{
535 int bytes, len;
536
537 len = strlen(text);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]538 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]539 if (!bytes)
540 return -1;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]541 http_msg_move_end(msg, bytes);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]542 return hdr_idx_add(len, 1, hdr_idx, hdr_idx->tail);
543}
544
545/*
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]546 * Adds a header and its CRLF at the tail of the message's buffer, just before
547 * 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]548 * the buffer is only opened and the space reserved, but nothing is copied.
549 * The header is also automatically added to the index <hdr_idx>, and the end
550 * of headers is automatically adjusted. The number of bytes added is returned
551 * on success, otherwise <0 is returned indicating an error.
552 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]553int http_header_add_tail2(struct http_msg *msg,
554 struct hdr_idx *hdr_idx, const char *text, int len)
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]555{
556 int bytes;
557
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]558 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]559 if (!bytes)
560 return -1;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]561 http_msg_move_end(msg, bytes);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]562 return hdr_idx_add(len, 1, hdr_idx, hdr_idx->tail);
563}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]564
565/*
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]566 * Checks if <hdr> is exactly <name> for <len> chars, and ends with a colon.
567 * If so, returns the position of the first non-space character relative to
568 * <hdr>, or <end>-<hdr> if not found before. If no value is found, it tries
569 * to return a pointer to the place after the first space. Returns 0 if the
570 * header name does not match. Checks are case-insensitive.
571 */
572int http_header_match2(const char *hdr, const char *end,
573 const char *name, int len)
574{
575 const char *val;
576
577 if (hdr + len >= end)
578 return 0;
579 if (hdr[len] != ':')
580 return 0;
581 if (strncasecmp(hdr, name, len) != 0)
582 return 0;
583 val = hdr + len + 1;
584 while (val < end && HTTP_IS_SPHT(*val))
585 val++;
586 if ((val >= end) && (len + 2 <= end - hdr))
587 return len + 2; /* we may replace starting from second space */
588 return val - hdr;
589}
590
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]591/* Find the first or next occurrence of header <name> in message buffer <sol>
592 * using headers index <idx>, and return it in the <ctx> structure. This
593 * structure holds everything necessary to use the header and find next
594 * occurrence. If its <idx> member is 0, the header is searched from the
595 * beginning. Otherwise, the next occurrence is returned. The function returns
596 * 1 when it finds a value, and 0 when there is no more. It is very similar to
597 * http_find_header2() except that it is designed to work with full-line headers
598 * whose comma is not a delimiter but is part of the syntax. As a special case,
599 * if ctx->val is NULL when searching for a new values of a header, the current
600 * header is rescanned. This allows rescanning after a header deletion.
601 */
602int http_find_full_header2(const char *name, int len,
603 char *sol, struct hdr_idx *idx,
604 struct hdr_ctx *ctx)
605{
606 char *eol, *sov;
607 int cur_idx, old_idx;
608
609 cur_idx = ctx->idx;
610 if (cur_idx) {
611 /* We have previously returned a header, let's search another one */
612 sol = ctx->line;
613 eol = sol + idx->v[cur_idx].len;
614 goto next_hdr;
615 }
616
617 /* first request for this header */
618 sol += hdr_idx_first_pos(idx);
619 old_idx = 0;
620 cur_idx = hdr_idx_first_idx(idx);
621 while (cur_idx) {
622 eol = sol + idx->v[cur_idx].len;
623
624 if (len == 0) {
625 /* No argument was passed, we want any header.
626 * To achieve this, we simply build a fake request. */
627 while (sol + len < eol && sol[len] != ':')
628 len++;
629 name = sol;
630 }
631
632 if ((len < eol - sol) &&
633 (sol[len] == ':') &&
634 (strncasecmp(sol, name, len) == 0)) {
635 ctx->del = len;
636 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]637 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]638 sov++;
639
640 ctx->line = sol;
641 ctx->prev = old_idx;
642 ctx->idx = cur_idx;
643 ctx->val = sov - sol;
644 ctx->tws = 0;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]645 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]646 eol--;
647 ctx->tws++;
648 }
649 ctx->vlen = eol - sov;
650 return 1;
651 }
652 next_hdr:
653 sol = eol + idx->v[cur_idx].cr + 1;
654 old_idx = cur_idx;
655 cur_idx = idx->v[cur_idx].next;
656 }
657 return 0;
658}
659
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]660/* Find the first or next header field in message buffer <sol> using headers
661 * index <idx>, and return it in the <ctx> structure. This structure holds
662 * everything necessary to use the header and find next occurrence. If its
663 * <idx> member is 0, the first header is retrieved. Otherwise, the next
664 * occurrence is returned. The function returns 1 when it finds a value, and
665 * 0 when there is no more. It is equivalent to http_find_full_header2() with
666 * no header name.
667 */
668int http_find_next_header(char *sol, struct hdr_idx *idx, struct hdr_ctx *ctx)
669{
670 char *eol, *sov;
671 int cur_idx, old_idx;
672 int len;
673
674 cur_idx = ctx->idx;
675 if (cur_idx) {
676 /* We have previously returned a header, let's search another one */
677 sol = ctx->line;
678 eol = sol + idx->v[cur_idx].len;
679 goto next_hdr;
680 }
681
682 /* first request for this header */
683 sol += hdr_idx_first_pos(idx);
684 old_idx = 0;
685 cur_idx = hdr_idx_first_idx(idx);
686 while (cur_idx) {
687 eol = sol + idx->v[cur_idx].len;
688
689 len = 0;
690 while (1) {
691 if (len >= eol - sol)
692 goto next_hdr;
693 if (sol[len] == ':')
694 break;
695 len++;
696 }
697
698 ctx->del = len;
699 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]700 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]701 sov++;
702
703 ctx->line = sol;
704 ctx->prev = old_idx;
705 ctx->idx = cur_idx;
706 ctx->val = sov - sol;
707 ctx->tws = 0;
708
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]709 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]710 eol--;
711 ctx->tws++;
712 }
713 ctx->vlen = eol - sov;
714 return 1;
715
716 next_hdr:
717 sol = eol + idx->v[cur_idx].cr + 1;
718 old_idx = cur_idx;
719 cur_idx = idx->v[cur_idx].next;
720 }
721 return 0;
722}
723
Lukas Tribus23953682017-04-28 13:24:30 +0000[diff] [blame]724/* Find the end of the header value contained between <s> and <e>. See RFC7230,
725 * 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]726 * a valid result. This works for headers defined as comma-separated lists.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]727 */
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]728char *find_hdr_value_end(char *s, const char *e)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]729{
730 int quoted, qdpair;
731
732 quoted = qdpair = 0;
Willy Tarreaue6d9c212016-11-05 18:23:38 +0100[diff] [blame]733
734#if defined(__x86_64__) || \
735 defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) || \
736 defined(__ARM_ARCH_7A__)
737 /* speedup: skip everything not a comma nor a double quote */
738 for (; s <= e - sizeof(int); s += sizeof(int)) {
739 unsigned int c = *(int *)s; // comma
740 unsigned int q = c; // quote
741
742 c ^= 0x2c2c2c2c; // contains one zero on a comma
743 q ^= 0x22222222; // contains one zero on a quote
744
745 c = (c - 0x01010101) & ~c; // contains 0x80 below a comma
746 q = (q - 0x01010101) & ~q; // contains 0x80 below a quote
747
748 if ((c | q) & 0x80808080)
749 break; // found a comma or a quote
750 }
751#endif
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]752 for (; s < e; s++) {
753 if (qdpair) qdpair = 0;
Willy Tarreau0f7f51f2010-08-30 11:06:34 +0200[diff] [blame]754 else if (quoted) {
755 if (*s == '\\') qdpair = 1;
756 else if (*s == '"') quoted = 0;
757 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]758 else if (*s == '"') quoted = 1;
759 else if (*s == ',') return s;
760 }
761 return s;
762}
763
764/* Find the first or next occurrence of header <name> in message buffer <sol>
765 * using headers index <idx>, and return it in the <ctx> structure. This
766 * structure holds everything necessary to use the header and find next
767 * occurrence. If its <idx> member is 0, the header is searched from the
768 * beginning. Otherwise, the next occurrence is returned. The function returns
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]769 * 1 when it finds a value, and 0 when there is no more. It is designed to work
770 * with headers defined as comma-separated lists. As a special case, if ctx->val
771 * is NULL when searching for a new values of a header, the current header is
772 * rescanned. This allows rescanning after a header deletion.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]773 */
774int http_find_header2(const char *name, int len,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]775 char *sol, struct hdr_idx *idx,
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]776 struct hdr_ctx *ctx)
777{
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]778 char *eol, *sov;
779 int cur_idx, old_idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]780
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]781 cur_idx = ctx->idx;
782 if (cur_idx) {
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]783 /* We have previously returned a value, let's search
784 * another one on the same line.
785 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]786 sol = ctx->line;
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]787 ctx->del = ctx->val + ctx->vlen + ctx->tws;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]788 sov = sol + ctx->del;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]789 eol = sol + idx->v[cur_idx].len;
790
791 if (sov >= eol)
792 /* no more values in this header */
793 goto next_hdr;
794
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]795 /* values remaining for this header, skip the comma but save it
796 * for later use (eg: for header deletion).
797 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]798 sov++;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]799 while (sov < eol && HTTP_IS_LWS((*sov)))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]800 sov++;
801
802 goto return_hdr;
803 }
804
805 /* first request for this header */
806 sol += hdr_idx_first_pos(idx);
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]807 old_idx = 0;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]808 cur_idx = hdr_idx_first_idx(idx);
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]809 while (cur_idx) {
810 eol = sol + idx->v[cur_idx].len;
811
Willy Tarreau1ad7c6d2007-06-10 21:42:55 +0200[diff] [blame]812 if (len == 0) {
813 /* No argument was passed, we want any header.
814 * To achieve this, we simply build a fake request. */
815 while (sol + len < eol && sol[len] != ':')
816 len++;
817 name = sol;
818 }
819
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]820 if ((len < eol - sol) &&
821 (sol[len] == ':') &&
822 (strncasecmp(sol, name, len) == 0)) {
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]823 ctx->del = len;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]824 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]825 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]826 sov++;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]827
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]828 ctx->line = sol;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]829 ctx->prev = old_idx;
830 return_hdr:
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]831 ctx->idx = cur_idx;
832 ctx->val = sov - sol;
833
834 eol = find_hdr_value_end(sov, eol);
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]835 ctx->tws = 0;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]836 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]837 eol--;
838 ctx->tws++;
839 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]840 ctx->vlen = eol - sov;
841 return 1;
842 }
843 next_hdr:
844 sol = eol + idx->v[cur_idx].cr + 1;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]845 old_idx = cur_idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]846 cur_idx = idx->v[cur_idx].next;
847 }
848 return 0;
849}
850
851int http_find_header(const char *name,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]852 char *sol, struct hdr_idx *idx,
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]853 struct hdr_ctx *ctx)
854{
855 return http_find_header2(name, strlen(name), sol, idx, ctx);
856}
857
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]858/* Remove one value of a header. This only works on a <ctx> returned by one of
859 * the http_find_header functions. The value is removed, as well as surrounding
860 * commas if any. If the removed value was alone, the whole header is removed.
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]861 * The ctx is always updated accordingly, as well as the buffer and HTTP
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]862 * message <msg>. The new index is returned. If it is zero, it means there is
863 * no more header, so any processing may stop. The ctx is always left in a form
864 * that can be handled by http_find_header2() to find next occurrence.
865 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]866int 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]867{
868 int cur_idx = ctx->idx;
869 char *sol = ctx->line;
870 struct hdr_idx_elem *hdr;
871 int delta, skip_comma;
872
873 if (!cur_idx)
874 return 0;
875
876 hdr = &idx->v[cur_idx];
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]877 if (sol[ctx->del] == ':' && ctx->val + ctx->vlen + ctx->tws == hdr->len) {
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]878 /* This was the only value of the header, we must now remove it entirely. */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]879 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]880 http_msg_move_end(msg, delta);
881 idx->used--;
882 hdr->len = 0; /* unused entry */
883 idx->v[ctx->prev].next = idx->v[ctx->idx].next;
Willy Tarreau5c4784f2011-02-12 13:07:35 +0100[diff] [blame]884 if (idx->tail == ctx->idx)
885 idx->tail = ctx->prev;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]886 ctx->idx = ctx->prev; /* walk back to the end of previous header */
Willy Tarreau7c1c2172015-01-07 17:23:50 +0100[diff] [blame]887 ctx->line -= idx->v[ctx->idx].len + idx->v[ctx->idx].cr + 1;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]888 ctx->val = idx->v[ctx->idx].len; /* point to end of previous header */
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]889 ctx->tws = ctx->vlen = 0;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]890 return ctx->idx;
891 }
892
893 /* This was not the only value of this header. We have to remove between
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]894 * ctx->del+1 and ctx->val+ctx->vlen+ctx->tws+1 included. If it is the
895 * last entry of the list, we remove the last separator.
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]896 */
897
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]898 skip_comma = (ctx->val + ctx->vlen + ctx->tws == hdr->len) ? 0 : 1;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]899 delta = buffer_replace2(msg->chn->buf, sol + ctx->del + skip_comma,
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]900 sol + ctx->val + ctx->vlen + ctx->tws + skip_comma,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]901 NULL, 0);
902 hdr->len += delta;
903 http_msg_move_end(msg, delta);
904 ctx->val = ctx->del;
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]905 ctx->tws = ctx->vlen = 0;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]906 return ctx->idx;
907}
908
Willy Tarreau2d3d94c2008-11-30 20:20:08 +0100[diff] [blame]909/* This function handles a server error at the stream interface level. The
910 * stream interface is assumed to be already in a closed state. An optional
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]911 * message is copied into the input buffer.
Willy Tarreau2d3d94c2008-11-30 20:20:08 +0100[diff] [blame]912 * The error flags are set to the values in arguments. Any pending request
Willy Tarreau6f0aa472009-03-08 20:33:29 +0100[diff] [blame]913 * in this buffer will be lost.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]914 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]915static void http_server_error(struct stream *s, struct stream_interface *si,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]916 int err, int finst, const struct chunk *msg)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]917{
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]918 FLT_STRM_CB(s, flt_http_reply(s, s->txn->status, msg));
Willy Tarreau2bb4a962014-11-28 11:11:05 +0100[diff] [blame]919 channel_auto_read(si_oc(si));
920 channel_abort(si_oc(si));
921 channel_auto_close(si_oc(si));
922 channel_erase(si_oc(si));
923 channel_auto_close(si_ic(si));
924 channel_auto_read(si_ic(si));
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]925 if (msg)
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]926 co_inject(si_ic(si), msg->str, msg->len);
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]927 if (!(s->flags & SF_ERR_MASK))
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]928 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]929 if (!(s->flags & SF_FINST_MASK))
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]930 s->flags |= finst;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]931}
932
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]933/* This function returns the appropriate error location for the given stream
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]934 * and message.
935 */
936
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]937struct chunk *http_error_message(struct stream *s)
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]938{
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]939 const int msgnum = http_get_status_idx(s->txn->status);
940
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200[diff] [blame]941 if (s->be->errmsg[msgnum].str)
942 return &s->be->errmsg[msgnum];
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]943 else if (strm_fe(s)->errmsg[msgnum].str)
944 return &strm_fe(s)->errmsg[msgnum];
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]945 else
946 return &http_err_chunks[msgnum];
947}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]948
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]949void
950http_reply_and_close(struct stream *s, short status, struct chunk *msg)
951{
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]952 s->txn->flags &= ~TX_WAIT_NEXT_RQ;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]953 FLT_STRM_CB(s, flt_http_reply(s, status, msg));
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]954 stream_int_retnclose(&s->si[0], msg);
955}
956
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]957/*
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]958 * returns a known method among HTTP_METH_* or HTTP_METH_OTHER for all unknown
959 * ones.
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]960 */
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]961enum http_meth_t find_http_meth(const char *str, const int len)
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]962{
963 unsigned char m;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]964 const struct http_method_desc *h;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]965
966 m = ((unsigned)*str - 'A');
967
968 if (m < 26) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]969 for (h = http_methods[m]; h->len > 0; h++) {
970 if (unlikely(h->len != len))
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]971 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]972 if (likely(memcmp(str, h->text, h->len) == 0))
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]973 return h->meth;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]974 };
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]975 }
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]976 return HTTP_METH_OTHER;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]977}
978
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]979/* Parse the URI from the given transaction (which is assumed to be in request
980 * phase) and look for the "/" beginning the PATH. If not found, return NULL.
981 * It is returned otherwise.
982 */
Thierry FOURNIER3c331782015-09-17 19:33:35 +0200[diff] [blame]983char *http_get_path(struct http_txn *txn)
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]984{
985 char *ptr, *end;
986
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]987 ptr = txn->req.chn->buf->p + txn->req.sl.rq.u;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]988 end = ptr + txn->req.sl.rq.u_l;
989
990 if (ptr >= end)
991 return NULL;
992
Lukas Tribus23953682017-04-28 13:24:30 +0000[diff] [blame]993 /* RFC7230, par. 2.7 :
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]994 * Request-URI = "*" | absuri | abspath | authority
995 */
996
997 if (*ptr == '*')
998 return NULL;
999
1000 if (isalpha((unsigned char)*ptr)) {
1001 /* this is a scheme as described by RFC3986, par. 3.1 */
1002 ptr++;
1003 while (ptr < end &&
1004 (isalnum((unsigned char)*ptr) || *ptr == '+' || *ptr == '-' || *ptr == '.'))
1005 ptr++;
1006 /* skip '://' */
1007 if (ptr == end || *ptr++ != ':')
1008 return NULL;
1009 if (ptr == end || *ptr++ != '/')
1010 return NULL;
1011 if (ptr == end || *ptr++ != '/')
1012 return NULL;
1013 }
1014 /* skip [user[:passwd]@]host[:[port]] */
1015
1016 while (ptr < end && *ptr != '/')
1017 ptr++;
1018
1019 if (ptr == end)
1020 return NULL;
1021
1022 /* OK, we got the '/' ! */
1023 return ptr;
1024}
1025
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]1026/* Parse the URI from the given string and look for the "/" beginning the PATH.
1027 * If not found, return NULL. It is returned otherwise.
1028 */
1029static char *
1030http_get_path_from_string(char *str)
1031{
1032 char *ptr = str;
1033
1034 /* RFC2616, par. 5.1.2 :
1035 * Request-URI = "*" | absuri | abspath | authority
1036 */
1037
1038 if (*ptr == '*')
1039 return NULL;
1040
1041 if (isalpha((unsigned char)*ptr)) {
1042 /* this is a scheme as described by RFC3986, par. 3.1 */
1043 ptr++;
1044 while (isalnum((unsigned char)*ptr) || *ptr == '+' || *ptr == '-' || *ptr == '.')
1045 ptr++;
1046 /* skip '://' */
1047 if (*ptr == '\0' || *ptr++ != ':')
1048 return NULL;
1049 if (*ptr == '\0' || *ptr++ != '/')
1050 return NULL;
1051 if (*ptr == '\0' || *ptr++ != '/')
1052 return NULL;
1053 }
1054 /* skip [user[:passwd]@]host[:[port]] */
1055
1056 while (*ptr != '\0' && *ptr != ' ' && *ptr != '/')
1057 ptr++;
1058
1059 if (*ptr == '\0' || *ptr == ' ')
1060 return NULL;
1061
1062 /* OK, we got the '/' ! */
1063 return ptr;
1064}
1065
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]1066/* Returns a 302 for a redirectable request that reaches a server working in
1067 * in redirect mode. This may only be called just after the stream interface
1068 * has moved to SI_ST_ASS. Unprocessable requests are left unchanged and will
1069 * follow normal proxy processing. NOTE: this function is designed to support
1070 * being called once data are scheduled for forwarding.
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1071 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1072void http_perform_server_redirect(struct stream *s, struct stream_interface *si)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1073{
1074 struct http_txn *txn;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1075 struct server *srv;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1076 char *path;
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1077 int len, rewind;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1078
1079 /* 1: create the response header */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1080 trash.len = strlen(HTTP_302);
1081 memcpy(trash.str, HTTP_302, trash.len);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1082
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]1083 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1084
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1085 /* 2: add the server's prefix */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1086 if (trash.len + srv->rdr_len > trash.size)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1087 return;
1088
Willy Tarreaudcb75c42010-01-10 00:24:22 +0100[diff] [blame]1089 /* special prefix "/" means don't change URL */
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1090 if (srv->rdr_len != 1 || *srv->rdr_pfx != '/') {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1091 memcpy(trash.str + trash.len, srv->rdr_pfx, srv->rdr_len);
1092 trash.len += srv->rdr_len;
Willy Tarreaudcb75c42010-01-10 00:24:22 +0100[diff] [blame]1093 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1094
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1095 /* 3: add the request URI. Since it was already forwarded, we need
1096 * to temporarily rewind the buffer.
1097 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1098 txn = s->txn;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1099 b_rew(s->req.buf, rewind = http_hdr_rewind(&txn->req));
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1100
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1101 path = http_get_path(txn);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1102 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]1103
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1104 b_adv(s->req.buf, rewind);
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1105
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1106 if (!path)
1107 return;
1108
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1109 if (trash.len + len > trash.size - 4) /* 4 for CRLF-CRLF */
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1110 return;
1111
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1112 memcpy(trash.str + trash.len, path, len);
1113 trash.len += len;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1114
1115 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1116 memcpy(trash.str + trash.len, "\r\nProxy-Connection: close\r\n\r\n", 29);
1117 trash.len += 29;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1118 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1119 memcpy(trash.str + trash.len, "\r\nConnection: close\r\n\r\n", 23);
1120 trash.len += 23;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1121 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1122
1123 /* prepare to return without error. */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200[diff] [blame]1124 si_shutr(si);
1125 si_shutw(si);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1126 si->err_type = SI_ET_NONE;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1127 si->state = SI_ST_CLO;
1128
1129 /* send the message */
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1130 txn->status = 302;
1131 http_server_error(s, si, SF_ERR_LOCAL, SF_FINST_C, &trash);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1132
1133 /* FIXME: we should increase a counter of redirects per server and per backend. */
Willy Tarreau4521ba62013-01-24 01:25:25 +0100[diff] [blame]1134 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -0500[diff] [blame]1135 srv_set_sess_last(srv);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1136}
1137
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100[diff] [blame]1138/* Return the error message corresponding to si->err_type. It is assumed
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1139 * that the server side is closed. Note that err_type is actually a
1140 * bitmask, where almost only aborts may be cumulated with other
1141 * values. We consider that aborted operations are more important
1142 * than timeouts or errors due to the fact that nobody else in the
1143 * logs might explain incomplete retries. All others should avoid
1144 * being cumulated. It should normally not be possible to have multiple
1145 * aborts at once, but just in case, the first one in sequence is reported.
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]1146 * Note that connection errors appearing on the second request of a keep-alive
1147 * connection are not reported since this allows the client to retry.
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1148 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1149void http_return_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1150{
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100[diff] [blame]1151 int err_type = si->err_type;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1152
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1153 /* set s->txn->status for http_error_message(s) */
1154 s->txn->status = 503;
1155
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1156 if (err_type & SI_ET_QUEUE_ABRT)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1157 http_server_error(s, si, SF_ERR_CLICL, SF_FINST_Q,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1158 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1159 else if (err_type & SI_ET_CONN_ABRT)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1160 http_server_error(s, si, SF_ERR_CLICL, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1161 (s->txn->flags & TX_NOT_FIRST) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1162 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1163 else if (err_type & SI_ET_QUEUE_TO)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1164 http_server_error(s, si, SF_ERR_SRVTO, SF_FINST_Q,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1165 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1166 else if (err_type & SI_ET_QUEUE_ERR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1167 http_server_error(s, si, SF_ERR_SRVCL, SF_FINST_Q,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1168 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1169 else if (err_type & SI_ET_CONN_TO)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1170 http_server_error(s, si, SF_ERR_SRVTO, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1171 (s->txn->flags & TX_NOT_FIRST) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1172 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1173 else if (err_type & SI_ET_CONN_ERR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1174 http_server_error(s, si, SF_ERR_SRVCL, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1175 (s->flags & SF_SRV_REUSED) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1176 http_error_message(s));
Willy Tarreau2d400bb2012-05-14 12:11:47 +0200[diff] [blame]1177 else if (err_type & SI_ET_CONN_RES)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1178 http_server_error(s, si, SF_ERR_RESOURCE, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1179 (s->txn->flags & TX_NOT_FIRST) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1180 http_error_message(s));
1181 else { /* SI_ET_CONN_OTHER and others */
1182 s->txn->status = 500;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1183 http_server_error(s, si, SF_ERR_INTERNAL, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1184 http_error_message(s));
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1185 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1186}
1187
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]1188extern const char sess_term_cond[8];
1189extern const char sess_fin_state[8];
1190extern const char *monthname[12];
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]1191struct pool_head *pool_head_http_txn;
1192struct pool_head *pool_head_requri;
1193struct pool_head *pool_head_capture = NULL;
1194struct pool_head *pool_head_uniqueid;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1195
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1196/*
1197 * Capture headers from message starting at <som> according to header list
Willy Tarreau54da8db2014-06-13 16:11:48 +0200[diff] [blame]1198 * <cap_hdr>, and fill the <cap> pointers appropriately.
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1199 */
1200void capture_headers(char *som, struct hdr_idx *idx,
1201 char **cap, struct cap_hdr *cap_hdr)
1202{
1203 char *eol, *sol, *col, *sov;
1204 int cur_idx;
1205 struct cap_hdr *h;
1206 int len;
1207
1208 sol = som + hdr_idx_first_pos(idx);
1209 cur_idx = hdr_idx_first_idx(idx);
1210
1211 while (cur_idx) {
1212 eol = sol + idx->v[cur_idx].len;
1213
1214 col = sol;
1215 while (col < eol && *col != ':')
1216 col++;
1217
1218 sov = col + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]1219 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1220 sov++;
1221
1222 for (h = cap_hdr; h; h = h->next) {
Willy Tarreau54da8db2014-06-13 16:11:48 +0200[diff] [blame]1223 if (h->namelen && (h->namelen == col - sol) &&
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1224 (strncasecmp(sol, h->name, h->namelen) == 0)) {
1225 if (cap[h->index] == NULL)
1226 cap[h->index] =
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]1227 pool_alloc(h->pool);
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1228
1229 if (cap[h->index] == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]1230 ha_alert("HTTP capture : out of memory.\n");
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1231 continue;
1232 }
1233
1234 len = eol - sov;
1235 if (len > h->len)
1236 len = h->len;
1237
1238 memcpy(cap[h->index], sov, len);
1239 cap[h->index][len]=0;
1240 }
1241 }
1242 sol = eol + idx->v[cur_idx].cr + 1;
1243 cur_idx = idx->v[cur_idx].next;
1244 }
1245}
1246
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1247/*
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1248 * Returns the data from Authorization header. Function may be called more
1249 * than once so data is stored in txn->auth_data. When no header is found
1250 * 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]1251 * searching again for something we are unable to find anyway. However, if
1252 * the result if valid, the cache is not reused because we would risk to
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1253 * have the credentials overwritten by another stream in parallel.
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1254 */
1255
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1256int
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1257get_http_auth(struct stream *s)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1258{
1259
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1260 struct http_txn *txn = s->txn;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1261 struct chunk auth_method;
1262 struct hdr_ctx ctx;
1263 char *h, *p;
1264 int len;
1265
1266#ifdef DEBUG_AUTH
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1267 printf("Auth for stream %p: %d\n", s, txn->auth.method);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1268#endif
1269
1270 if (txn->auth.method == HTTP_AUTH_WRONG)
1271 return 0;
1272
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1273 txn->auth.method = HTTP_AUTH_WRONG;
1274
1275 ctx.idx = 0;
Willy Tarreau844a7e72010-01-31 21:46:18 +0100[diff] [blame]1276
1277 if (txn->flags & TX_USE_PX_CONN) {
1278 h = "Proxy-Authorization";
1279 len = strlen(h);
1280 } else {
1281 h = "Authorization";
1282 len = strlen(h);
1283 }
1284
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1285 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]1286 return 0;
1287
1288 h = ctx.line + ctx.val;
1289
1290 p = memchr(h, ' ', ctx.vlen);
Willy Tarreau5c557d12016-03-13 08:17:02 +0100[diff] [blame]1291 len = p - h;
1292 if (!p || len <= 0)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1293 return 0;
1294
David Carlier7365f7d2016-04-04 11:54:42 +0100[diff] [blame]1295 if (chunk_initlen(&auth_method, h, 0, len) != 1)
1296 return 0;
1297
Willy Tarreau5c557d12016-03-13 08:17:02 +0100[diff] [blame]1298 chunk_initlen(&txn->auth.method_data, p + 1, 0, ctx.vlen - len - 1);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1299
1300 if (!strncasecmp("Basic", auth_method.str, auth_method.len)) {
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1301 struct chunk *http_auth = get_trash_chunk();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1302
1303 len = base64dec(txn->auth.method_data.str, txn->auth.method_data.len,
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1304 http_auth->str, global.tune.bufsize - 1);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1305
1306 if (len < 0)
1307 return 0;
1308
1309
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1310 http_auth->str[len] = '\0';
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1311
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1312 p = strchr(http_auth->str, ':');
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1313
1314 if (!p)
1315 return 0;
1316
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1317 txn->auth.user = http_auth->str;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1318 *p = '\0';
1319 txn->auth.pass = p+1;
1320
1321 txn->auth.method = HTTP_AUTH_BASIC;
1322 return 1;
1323 }
1324
1325 return 0;
1326}
1327
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]1328
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1329/* convert an HTTP/0.9 request into an HTTP/1.0 request. Returns 1 if the
1330 * conversion succeeded, 0 in case of error. If the request was already 1.X,
1331 * nothing is done and 1 is returned.
1332 */
Willy Tarreau418bfcc2012-03-09 13:56:20 +0100[diff] [blame]1333static int http_upgrade_v09_to_v10(struct http_txn *txn)
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1334{
1335 int delta;
1336 char *cur_end;
Willy Tarreau418bfcc2012-03-09 13:56:20 +0100[diff] [blame]1337 struct http_msg *msg = &txn->req;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1338
1339 if (msg->sl.rq.v_l != 0)
1340 return 1;
1341
Apollon Oikonomopoulos25a15222014-04-06 02:46:00 +0300[diff] [blame]1342 /* RFC 1945 allows only GET for HTTP/0.9 requests */
1343 if (txn->meth != HTTP_METH_GET)
1344 return 0;
1345
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1346 cur_end = msg->chn->buf->p + msg->sl.rq.l;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1347
1348 if (msg->sl.rq.u_l == 0) {
Apollon Oikonomopoulos25a15222014-04-06 02:46:00 +0300[diff] [blame]1349 /* HTTP/0.9 requests *must* have a request URI, per RFC 1945 */
1350 return 0;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1351 }
1352 /* add HTTP version */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1353 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]1354 http_msg_move_end(msg, delta);
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1355 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1356 cur_end = (char *)http_parse_reqline(msg,
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1357 HTTP_MSG_RQMETH,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1358 msg->chn->buf->p, cur_end + 1,
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1359 NULL, NULL);
1360 if (unlikely(!cur_end))
1361 return 0;
1362
1363 /* we have a full HTTP/1.0 request now and we know that
1364 * we have either a CR or an LF at <ptr>.
1365 */
1366 hdr_idx_set_start(&txn->hdr_idx, msg->sl.rq.l, *cur_end == '\r');
1367 return 1;
1368}
1369
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1370/* Parse the Connection: header of an HTTP request, looking for both "close"
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1371 * and "keep-alive" values. If we already know that some headers may safely
1372 * be removed, we remove them now. The <to_del> flags are used for that :
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1373 * - bit 0 means remove "close" headers (in HTTP/1.0 requests/responses)
1374 * - 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]1375 * Presence of the "Upgrade" token is also checked and reported.
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1376 * The TX_HDR_CONN_* flags are adjusted in txn->flags depending on what was
1377 * found, and TX_CON_*_SET is adjusted depending on what is left so only
1378 * harmless combinations may be removed. Do not call that after changes have
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1379 * been processed.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1380 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1381void 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]1382{
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1383 struct hdr_ctx ctx;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1384 const char *hdr_val = "Connection";
1385 int hdr_len = 10;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1386
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1387 if (txn->flags & TX_HDR_CONN_PRS)
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1388 return;
1389
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1390 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1391 hdr_val = "Proxy-Connection";
1392 hdr_len = 16;
1393 }
1394
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1395 ctx.idx = 0;
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1396 txn->flags &= ~(TX_CON_KAL_SET|TX_CON_CLO_SET);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1397 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]1398 if (ctx.vlen >= 10 && word_match(ctx.line + ctx.val, ctx.vlen, "keep-alive", 10)) {
1399 txn->flags |= TX_HDR_CONN_KAL;
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1400 if (to_del & 2)
1401 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1402 else
1403 txn->flags |= TX_CON_KAL_SET;
1404 }
1405 else if (ctx.vlen >= 5 && word_match(ctx.line + ctx.val, ctx.vlen, "close", 5)) {
1406 txn->flags |= TX_HDR_CONN_CLO;
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1407 if (to_del & 1)
1408 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1409 else
1410 txn->flags |= TX_CON_CLO_SET;
1411 }
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]1412 else if (ctx.vlen >= 7 && word_match(ctx.line + ctx.val, ctx.vlen, "upgrade", 7)) {
1413 txn->flags |= TX_HDR_CONN_UPG;
1414 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1415 }
1416
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1417 txn->flags |= TX_HDR_CONN_PRS;
1418 return;
1419}
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1420
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1421/* Apply desired changes on the Connection: header. Values may be removed and/or
1422 * added depending on the <wanted> flags, which are exclusively composed of
1423 * TX_CON_CLO_SET and TX_CON_KAL_SET, depending on what flags are desired. The
1424 * TX_CON_*_SET flags are adjusted in txn->flags depending on what is left.
1425 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1426void http_change_connection_header(struct http_txn *txn, struct http_msg *msg, int wanted)
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1427{
1428 struct hdr_ctx ctx;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1429 const char *hdr_val = "Connection";
1430 int hdr_len = 10;
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1431
1432 ctx.idx = 0;
1433
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1434
1435 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1436 hdr_val = "Proxy-Connection";
1437 hdr_len = 16;
1438 }
1439
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1440 txn->flags &= ~(TX_CON_CLO_SET | TX_CON_KAL_SET);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1441 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]1442 if (ctx.vlen >= 10 && word_match(ctx.line + ctx.val, ctx.vlen, "keep-alive", 10)) {
1443 if (wanted & TX_CON_KAL_SET)
1444 txn->flags |= TX_CON_KAL_SET;
1445 else
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1446 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1447 }
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1448 else if (ctx.vlen >= 5 && word_match(ctx.line + ctx.val, ctx.vlen, "close", 5)) {
1449 if (wanted & TX_CON_CLO_SET)
1450 txn->flags |= TX_CON_CLO_SET;
1451 else
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1452 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreau0dfdf192010-01-05 11:33:11 +0100[diff] [blame]1453 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1454 }
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1455
1456 if (wanted == (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
1457 return;
1458
1459 if ((wanted & TX_CON_CLO_SET) && !(txn->flags & TX_CON_CLO_SET)) {
1460 txn->flags |= TX_CON_CLO_SET;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1461 hdr_val = "Connection: close";
1462 hdr_len = 17;
1463 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1464 hdr_val = "Proxy-Connection: close";
1465 hdr_len = 23;
1466 }
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1467 http_header_add_tail2(msg, &txn->hdr_idx, hdr_val, hdr_len);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1468 }
1469
1470 if ((wanted & TX_CON_KAL_SET) && !(txn->flags & TX_CON_KAL_SET)) {
1471 txn->flags |= TX_CON_KAL_SET;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1472 hdr_val = "Connection: keep-alive";
1473 hdr_len = 22;
1474 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1475 hdr_val = "Proxy-Connection: keep-alive";
1476 hdr_len = 28;
1477 }
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1478 http_header_add_tail2(msg, &txn->hdr_idx, hdr_val, hdr_len);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1479 }
1480 return;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1481}
1482
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1483/* Parses a qvalue and returns it multipled by 1000, from 0 to 1000. If the
1484 * value is larger than 1000, it is bound to 1000. The parser consumes up to
1485 * 1 digit, one dot and 3 digits and stops on the first invalid character.
1486 * Unparsable qvalues return 1000 as "q=1.000".
1487 */
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]1488int parse_qvalue(const char *qvalue, const char **end)
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1489{
1490 int q = 1000;
1491
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1492 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1493 goto out;
1494 q = (*qvalue++ - '0') * 1000;
1495
1496 if (*qvalue++ != '.')
1497 goto out;
1498
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1499 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1500 goto out;
1501 q += (*qvalue++ - '0') * 100;
1502
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1503 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1504 goto out;
1505 q += (*qvalue++ - '0') * 10;
1506
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1507 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1508 goto out;
1509 q += (*qvalue++ - '0') * 1;
1510 out:
1511 if (q > 1000)
1512 q = 1000;
Willy Tarreau38b3aa52014-04-22 23:32:05 +0200[diff] [blame]1513 if (end)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]1514 *end = qvalue;
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1515 return q;
1516}
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]1517
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1518void 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]1519{
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]1520 struct proxy *fe = strm_fe(s);
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1521 int tmp = TX_CON_WANT_KAL;
1522
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1523 if (!((fe->options2|s->be->options2) & PR_O2_FAKE_KA)) {
1524 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_TUN ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1525 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_TUN)
1526 tmp = TX_CON_WANT_TUN;
1527
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1528 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1529 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)
1530 tmp = TX_CON_WANT_TUN;
1531 }
1532
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1533 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1534 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL) {
1535 /* option httpclose + server_close => forceclose */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1536 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1537 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)
1538 tmp = TX_CON_WANT_CLO;
1539 else
1540 tmp = TX_CON_WANT_SCL;
1541 }
1542
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1543 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_FCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1544 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_FCL)
1545 tmp = TX_CON_WANT_CLO;
1546
1547 if ((txn->flags & TX_CON_WANT_MSK) < tmp)
1548 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | tmp;
1549
1550 if (!(txn->flags & TX_HDR_CONN_PRS) &&
1551 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) {
1552 /* parse the Connection header and possibly clean it */
1553 int to_del = 0;
1554 if ((msg->flags & HTTP_MSGF_VER_11) ||
1555 ((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1556 !((fe->options2|s->be->options2) & PR_O2_FAKE_KA)))
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1557 to_del |= 2; /* remove "keep-alive" */
1558 if (!(msg->flags & HTTP_MSGF_VER_11))
1559 to_del |= 1; /* remove "close" */
1560 http_parse_connection_header(txn, msg, to_del);
1561 }
1562
1563 /* check if client or config asks for explicit close in KAL/SCL */
1564 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
1565 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) &&
1566 ((txn->flags & TX_HDR_CONN_CLO) || /* "connection: close" */
1567 (!(msg->flags & HTTP_MSGF_VER_11) && !(txn->flags & TX_HDR_CONN_KAL)) || /* no "connection: k-a" in 1.0 */
1568 !(msg->flags & HTTP_MSGF_XFER_LEN) || /* no length known => close */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1569 fe->state == PR_STSTOPPED)) /* frontend is stopping */
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1570 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
1571}
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]1572
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1573/* This stream analyser waits for a complete HTTP request. It returns 1 if the
1574 * processing can continue on next analysers, or zero if it either needs more
1575 * data or wants to immediately abort the request (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1576 * 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]1577 * when it has nothing left to do, and may remove any analyser when it wants to
1578 * abort.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1579 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1580int http_wait_for_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1581{
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1582 /*
1583 * We will parse the partial (or complete) lines.
1584 * We will check the request syntax, and also join multi-line
1585 * headers. An index of all the lines will be elaborated while
1586 * parsing.
1587 *
1588 * For the parsing, we use a 28 states FSM.
1589 *
1590 * Here is the information we currently have :
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1591 * req->buf->p = beginning of request
1592 * req->buf->p + msg->eoh = end of processed headers / start of current one
1593 * req->buf->p + req->buf->i = end of input data
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]1594 * msg->eol = end of current header or line (LF or CRLF)
1595 * msg->next = first non-visited byte
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1596 *
1597 * 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]1598 * we will set a few fields (txn->meth, sn->flags/SF_REDIRECTABLE).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1599 * We also check for monitor-uri, logging, HTTP/0.9 to 1.0 conversion, and
1600 * finally headers capture.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1601 */
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1602
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1603 int cur_idx;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1604 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1605 struct http_txn *txn = s->txn;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1606 struct http_msg *msg = &txn->req;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]1607 struct hdr_ctx ctx;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1608
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1609 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]1610 now_ms, __FUNCTION__,
1611 s,
1612 req,
1613 req->rex, req->wex,
1614 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1615 req->buf->i,
Willy Tarreau6bf17362009-02-24 10:48:35 +0100[diff] [blame]1616 req->analysers);
1617
Willy Tarreau52a0c602009-08-16 22:45:38 +0200[diff] [blame]1618 /* we're speaking HTTP here, so let's speak HTTP to the client */
1619 s->srv_error = http_return_srv_error;
1620
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]1621 /* There's a protected area at the end of the buffer for rewriting
1622 * purposes. We don't want to start to parse the request if the
1623 * protected area is affected, because we may have to move processed
1624 * data later, which is much more complicated.
1625 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1626 if (buffer_not_empty(req->buf) && msg->msg_state < HTTP_MSG_ERROR) {
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200[diff] [blame]1627
1628 /* This point is executed when some data is avalaible for analysis,
1629 * so we log the end of the idle time. */
1630 if (s->logs.t_idle == -1)
1631 s->logs.t_idle = tv_ms_elapsed(&s->logs.tv_accept, &now) - s->logs.t_handshake;
1632
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]1633 if (txn->flags & TX_NOT_FIRST) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]1634 if (unlikely(!channel_is_rewritable(req))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1635 if (req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]1636 goto failed_keep_alive;
Willy Tarreau2ab6eb12010-01-02 22:04:45 +0100[diff] [blame]1637 /* some data has still not left the buffer, wake us once that's done */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]1638 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1639 req->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]1640 req->flags |= CF_WAKE_WRITE;
Willy Tarreau2ab6eb12010-01-02 22:04:45 +0100[diff] [blame]1641 return 0;
1642 }
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]1643 if (unlikely(bi_end(req->buf) < b_ptr(req->buf, msg->next) ||
1644 bi_end(req->buf) > req->buf->data + req->buf->size - global.tune.maxrewrite))
1645 buffer_slow_realign(req->buf);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]1646 }
1647
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1648 if (likely(msg->next < req->buf->i)) /* some unparsed data are available */
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]1649 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]1650 }
1651
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1652 /* 1: we might have to print this header in debug mode */
1653 if (unlikely((global.mode & MODE_DEBUG) &&
1654 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]1655 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1656 char *eol, *sol;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1657
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1658 sol = req->buf->p;
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]1659 /* this is a bit complex : in case of error on the request line,
1660 * we know that rq.l is still zero, so we display only the part
1661 * up to the end of the line (truncated by debug_hdr).
1662 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1663 eol = sol + (msg->sl.rq.l ? msg->sl.rq.l : req->buf->i);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1664 debug_hdr("clireq", s, sol, eol);
Willy Tarreau45e73e32006-12-17 00:05:15 +0100[diff] [blame]1665
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1666 sol += hdr_idx_first_pos(&txn->hdr_idx);
1667 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1668
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1669 while (cur_idx) {
1670 eol = sol + txn->hdr_idx.v[cur_idx].len;
1671 debug_hdr("clihdr", s, sol, eol);
1672 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
1673 cur_idx = txn->hdr_idx.v[cur_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1674 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1675 }
1676
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1677
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1678 /*
1679 * Now we quickly check if we have found a full valid request.
1680 * If not so, we check the FD and buffer states before leaving.
1681 * A full request is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]1682 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1683 * requests are checked first. When waiting for a second request
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1684 * on a keep-alive stream, if we encounter and error, close, t/o,
1685 * we note the error in the stream flags but don't set any state.
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1686 * Since the error will be noted there, it will not be counted by
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1687 * process_stream() as a frontend error.
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1688 * Last, we may increase some tracked counters' http request errors on
1689 * the cases that are deliberately the client's fault. For instance,
1690 * a timeout or connection reset is not counted as an error. However
1691 * a bad request is.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1692 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1693
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]1694 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1695 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1696 * First, let's catch bad requests.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1697 */
Willy Tarreau3e1b6d12010-03-04 23:02:38 +0100[diff] [blame]1698 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1699 stream_inc_http_req_ctr(s);
1700 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1701 proxy_inc_fe_req_ctr(sess->fe);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1702 goto return_bad_req;
Willy Tarreau3e1b6d12010-03-04 23:02:38 +0100[diff] [blame]1703 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1704
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1705 /* 1: Since we are in header mode, if there's no space
1706 * left for headers, we won't be able to free more
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1707 * later, so the stream will never terminate. We
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1708 * must terminate it now.
1709 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1710 if (unlikely(buffer_full(req->buf, global.tune.maxrewrite))) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1711 /* FIXME: check if URI is set and return Status
1712 * 414 Request URI too long instead.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1713 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1714 stream_inc_http_req_ctr(s);
1715 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1716 proxy_inc_fe_req_ctr(sess->fe);
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]1717 if (msg->err_pos < 0)
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1718 msg->err_pos = req->buf->i;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1719 goto return_bad_req;
1720 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1721
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1722 /* 2: have we encountered a read error ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1723 else if (req->flags & CF_READ_ERROR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1724 if (!(s->flags & SF_ERR_MASK))
1725 s->flags |= SF_ERR_CLICL;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1726
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1727 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1728 goto failed_keep_alive;
1729
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]1730 if (sess->fe->options & PR_O_IGNORE_PRB)
1731 goto failed_keep_alive;
1732
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1733 /* we cannot return any message on error */
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1734 if (msg->err_pos >= 0) {
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1735 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]1736 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1737 }
1738
Willy Tarreaudc979f22012-12-04 10:39:01 +0100[diff] [blame]1739 txn->status = 400;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1740 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1741 msg->msg_state = HTTP_MSG_ERROR;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]1742 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1743 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1744 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1745 proxy_inc_fe_req_ctr(sess->fe);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1746 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1747 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]1748 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1749
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1750 if (!(s->flags & SF_FINST_MASK))
1751 s->flags |= SF_FINST_R;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1752 return 0;
1753 }
Willy Tarreauf9839bd2008-08-27 23:57:16 +0200[diff] [blame]1754
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1755 /* 3: has the read timeout expired ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1756 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]1757 if (!(s->flags & SF_ERR_MASK))
1758 s->flags |= SF_ERR_CLITO;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1759
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1760 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1761 goto failed_keep_alive;
1762
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]1763 if (sess->fe->options & PR_O_IGNORE_PRB)
1764 goto failed_keep_alive;
1765
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1766 /* read timeout : give up with an error message. */
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1767 if (msg->err_pos >= 0) {
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1768 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]1769 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1770 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1771 txn->status = 408;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1772 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1773 msg->msg_state = HTTP_MSG_ERROR;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1774 http_reply_and_close(s, txn->status, http_error_message(s));
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1775 req->analysers &= AN_REQ_FLT_END;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1776
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1777 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1778 proxy_inc_fe_req_ctr(sess->fe);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1779 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1780 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]1781 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1782
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1783 if (!(s->flags & SF_FINST_MASK))
1784 s->flags |= SF_FINST_R;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1785 return 0;
1786 }
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]1787
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1788 /* 4: have we encountered a close ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1789 else if (req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1790 if (!(s->flags & SF_ERR_MASK))
1791 s->flags |= SF_ERR_CLICL;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1792
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1793 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1794 goto failed_keep_alive;
1795
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]1796 if (sess->fe->options & PR_O_IGNORE_PRB)
1797 goto failed_keep_alive;
1798
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]1799 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1800 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]1801 txn->status = 400;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1802 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1803 msg->msg_state = HTTP_MSG_ERROR;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1804 http_reply_and_close(s, txn->status, http_error_message(s));
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1805 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1806 stream_inc_http_err_ctr(s);
1807 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1808 proxy_inc_fe_req_ctr(sess->fe);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1809 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1810 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]1811 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1812
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1813 if (!(s->flags & SF_FINST_MASK))
1814 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]1815 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1816 }
1817
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]1818 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1819 req->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1820 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]1821#ifdef TCP_QUICKACK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]1822 if (sess->listener->options & LI_O_NOQUICKACK && req->buf->i &&
1823 objt_conn(sess->origin) && conn_ctrl_ready(__objt_conn(sess->origin))) {
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]1824 /* We need more data, we have to re-enable quick-ack in case we
1825 * previously disabled it, otherwise we might cause the client
1826 * to delay next data.
1827 */
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]1828 setsockopt(__objt_conn(sess->origin)->handle.fd, IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one));
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]1829 }
1830#endif
Willy Tarreau1b194fe2009-03-21 21:10:04 +0100[diff] [blame]1831
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1832 if ((msg->msg_state != HTTP_MSG_RQBEFORE) && (txn->flags & TX_WAIT_NEXT_RQ)) {
1833 /* If the client starts to talk, let's fall back to
1834 * request timeout processing.
1835 */
1836 txn->flags &= ~TX_WAIT_NEXT_RQ;
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]1837 req->analyse_exp = TICK_ETERNITY;
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1838 }
1839
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1840 /* just set the request timeout once at the beginning of the request */
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]1841 if (!tick_isset(req->analyse_exp)) {
1842 if ((msg->msg_state == HTTP_MSG_RQBEFORE) &&
1843 (txn->flags & TX_WAIT_NEXT_RQ) &&
1844 tick_isset(s->be->timeout.httpka))
1845 req->analyse_exp = tick_add(now_ms, s->be->timeout.httpka);
1846 else
1847 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
1848 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1849
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1850 /* we're not ready yet */
1851 return 0;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1852
1853 failed_keep_alive:
1854 /* Here we process low-level errors for keep-alive requests. In
1855 * short, if the request is not the first one and it experiences
1856 * a timeout, read error or shutdown, we just silently close so
1857 * that the client can try again.
1858 */
1859 txn->status = 0;
1860 msg->msg_state = HTTP_MSG_RQBEFORE;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1861 req->analysers &= AN_REQ_FLT_END;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1862 s->logs.logwait = 0;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]1863 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1864 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]1865 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1866 return 0;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1867 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1868
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1869 /* OK now we have a complete HTTP request with indexed headers. Let's
1870 * complete the request parsing by setting a few fields we will need
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1871 * 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]1872 * 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]1873 * points to the CRLF of the request line. msg->next points to the first
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]1874 * byte after the last LF. msg->sov points to the first byte of data.
1875 * msg->eol cannot be trusted because it may have been left uninitialized
1876 * (for instance in the absence of headers).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1877 */
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]1878
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1879 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1880 proxy_inc_fe_req_ctr(sess->fe); /* one more valid request for this FE */
Willy Tarreaud9b587f2010-02-26 10:05:55 +0100[diff] [blame]1881
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]1882 if (txn->flags & TX_WAIT_NEXT_RQ) {
1883 /* kill the pending keep-alive timeout */
1884 txn->flags &= ~TX_WAIT_NEXT_RQ;
1885 req->analyse_exp = TICK_ETERNITY;
1886 }
1887
1888
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1889 /* Maybe we found in invalid header name while we were configured not
1890 * to block on that, so we have to capture it now.
1891 */
1892 if (unlikely(msg->err_pos >= 0))
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1893 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]1894
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1895 /*
1896 * 1: identify the method
1897 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1898 txn->meth = find_http_meth(req->buf->p, msg->sl.rq.m_l);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1899
1900 /* we can make use of server redirect on GET and HEAD */
1901 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1902 s->flags |= SF_REDIRECTABLE;
Willy Tarreau91659792017-11-10 19:38:10 +0100[diff] [blame]1903 else if (txn->meth == HTTP_METH_OTHER &&
1904 msg->sl.rq.m_l == 3 && memcmp(req->buf->p, "PRI", 3) == 0) {
1905 /* PRI is reserved for the HTTP/2 preface */
1906 msg->err_pos = 0;
1907 goto return_bad_req;
1908 }
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200[diff] [blame]1909
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1910 /*
1911 * 2: check if the URI matches the monitor_uri.
1912 * We have to do this for every request which gets in, because
1913 * the monitor-uri is defined by the frontend.
1914 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1915 if (unlikely((sess->fe->monitor_uri_len != 0) &&
1916 (sess->fe->monitor_uri_len == msg->sl.rq.u_l) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1917 !memcmp(req->buf->p + msg->sl.rq.u,
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1918 sess->fe->monitor_uri,
1919 sess->fe->monitor_uri_len))) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1920 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1921 * We have found the monitor URI
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1922 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1923 struct acl_cond *cond;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1924
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1925 s->flags |= SF_MONITOR;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1926 HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1927
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1928 /* Check if we want to fail this monitor request or not */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1929 list_for_each_entry(cond, &sess->fe->mon_fail_cond, list) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]1930 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]1931
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1932 ret = acl_pass(ret);
1933 if (cond->pol == ACL_COND_UNLESS)
1934 ret = !ret;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1935
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1936 if (ret) {
1937 /* we fail this request, let's return 503 service unavail */
1938 txn->status = 503;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1939 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1940 if (!(s->flags & SF_ERR_MASK))
1941 s->flags |= SF_ERR_LOCAL; /* we don't want a real error here */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1942 goto return_prx_cond;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1943 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1944 }
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100[diff] [blame]1945
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1946 /* nothing to fail, let's reply normaly */
1947 txn->status = 200;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1948 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1949 if (!(s->flags & SF_ERR_MASK))
1950 s->flags |= SF_ERR_LOCAL; /* we don't want a real error here */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1951 goto return_prx_cond;
1952 }
1953
1954 /*
1955 * 3: Maybe we have to copy the original REQURI for the logs ?
1956 * Note: we cannot log anymore if the request has been
1957 * classified as invalid.
1958 */
1959 if (unlikely(s->logs.logwait & LW_REQ)) {
1960 /* we have a complete HTTP request that we must log */
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]1961 if ((txn->uri = pool_alloc(pool_head_requri)) != NULL) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1962 int urilen = msg->sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1963
Stéphane Cottin23e9e932017-05-18 08:58:41 +0200[diff] [blame]1964 if (urilen >= global.tune.requri_len )
1965 urilen = global.tune.requri_len - 1;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1966 memcpy(txn->uri, req->buf->p, urilen);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1967 txn->uri[urilen] = 0;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1968
Willy Tarreaud79a3b22012-12-28 09:40:16 +0100[diff] [blame]1969 if (!(s->logs.logwait &= ~(LW_REQ|LW_INIT)))
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1970 s->do_log(s);
1971 } else {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]1972 ha_alert("HTTP logging : out of memory.\n");
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1973 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1974 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]1975
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]1976 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
1977 * exactly one digit "." one digit. This check may be disabled using
1978 * option accept-invalid-http-request.
1979 */
1980 if (!(sess->fe->options2 & PR_O2_REQBUG_OK)) {
1981 if (msg->sl.rq.v_l != 8) {
1982 msg->err_pos = msg->sl.rq.v;
1983 goto return_bad_req;
1984 }
1985
1986 if (req->buf->p[msg->sl.rq.v + 4] != '/' ||
1987 !isdigit((unsigned char)req->buf->p[msg->sl.rq.v + 5]) ||
1988 req->buf->p[msg->sl.rq.v + 6] != '.' ||
1989 !isdigit((unsigned char)req->buf->p[msg->sl.rq.v + 7])) {
1990 msg->err_pos = msg->sl.rq.v + 4;
1991 goto return_bad_req;
1992 }
1993 }
Willy Tarreau13317662015-05-01 13:47:08 +0200[diff] [blame]1994 else {
1995 /* 4. We may have to convert HTTP/0.9 requests to HTTP/1.0 */
1996 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
1997 goto return_bad_req;
1998 }
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]1999
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2000 /* ... and check if the request is HTTP/1.1 or above */
2001 if ((msg->sl.rq.v_l == 8) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2002 ((req->buf->p[msg->sl.rq.v + 5] > '1') ||
2003 ((req->buf->p[msg->sl.rq.v + 5] == '1') &&
2004 (req->buf->p[msg->sl.rq.v + 7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2005 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2006
2007 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]2008 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]2009
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2010 /* if the frontend has "option http-use-proxy-header", we'll check if
2011 * we have what looks like a proxied connection instead of a connection,
2012 * and in this case set the TX_USE_PX_CONN flag to use Proxy-connection.
2013 * Note that this is *not* RFC-compliant, however browsers and proxies
2014 * happen to do that despite being non-standard :-(
2015 * We consider that a request not beginning with either '/' or '*' is
2016 * a proxied connection, which covers both "scheme://location" and
2017 * CONNECT ip:port.
2018 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2019 if ((sess->fe->options2 & PR_O2_USE_PXHDR) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2020 req->buf->p[msg->sl.rq.u] != '/' && req->buf->p[msg->sl.rq.u] != '*')
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2021 txn->flags |= TX_USE_PX_CONN;
2022
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2023 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2024 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2025
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2026 /* 5: we may need to capture headers */
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]2027 if (unlikely((s->logs.logwait & LW_REQHDR) && s->req_cap))
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2028 capture_headers(req->buf->p, &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]2029 s->req_cap, sess->fe->req_cap);
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]2030
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2031 /* 6: determine the transfer-length according to RFC2616 #4.4, updated
2032 * by RFC7230#3.3.3 :
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2033 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2034 * The length of a message body is determined by one of the following
2035 * (in order of precedence):
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2036 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2037 * 1. Any response to a HEAD request and any response with a 1xx
2038 * (Informational), 204 (No Content), or 304 (Not Modified) status
2039 * code is always terminated by the first empty line after the
2040 * header fields, regardless of the header fields present in the
2041 * message, and thus cannot contain a message body.
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2042 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2043 * 2. Any 2xx (Successful) response to a CONNECT request implies that
2044 * the connection will become a tunnel immediately after the empty
2045 * line that concludes the header fields. A client MUST ignore any
2046 * Content-Length or Transfer-Encoding header fields received in
2047 * such a message.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2048 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2049 * 3. If a Transfer-Encoding header field is present and the chunked
2050 * transfer coding (Section 4.1) is the final encoding, the message
2051 * body length is determined by reading and decoding the chunked
2052 * data until the transfer coding indicates the data is complete.
2053 *
2054 * If a Transfer-Encoding header field is present in a response and
2055 * the chunked transfer coding is not the final encoding, the
2056 * message body length is determined by reading the connection until
2057 * it is closed by the server. If a Transfer-Encoding header field
2058 * is present in a request and the chunked transfer coding is not
2059 * the final encoding, the message body length cannot be determined
2060 * reliably; the server MUST respond with the 400 (Bad Request)
2061 * status code and then close the connection.
2062 *
2063 * If a message is received with both a Transfer-Encoding and a
2064 * Content-Length header field, the Transfer-Encoding overrides the
2065 * Content-Length. Such a message might indicate an attempt to
2066 * perform request smuggling (Section 9.5) or response splitting
2067 * (Section 9.4) and ought to be handled as an error. A sender MUST
2068 * remove the received Content-Length field prior to forwarding such
2069 * a message downstream.
2070 *
2071 * 4. If a message is received without Transfer-Encoding and with
2072 * either multiple Content-Length header fields having differing
2073 * field-values or a single Content-Length header field having an
2074 * invalid value, then the message framing is invalid and the
2075 * recipient MUST treat it as an unrecoverable error. If this is a
2076 * request message, the server MUST respond with a 400 (Bad Request)
2077 * status code and then close the connection. If this is a response
2078 * message received by a proxy, the proxy MUST close the connection
2079 * to the server, discard the received response, and send a 502 (Bad
2080 * Gateway) response to the client. If this is a response message
2081 * received by a user agent, the user agent MUST close the
2082 * connection to the server and discard the received response.
2083 *
2084 * 5. If a valid Content-Length header field is present without
2085 * Transfer-Encoding, its decimal value defines the expected message
2086 * body length in octets. If the sender closes the connection or
2087 * the recipient times out before the indicated number of octets are
2088 * received, the recipient MUST consider the message to be
2089 * incomplete and close the connection.
2090 *
2091 * 6. If this is a request message and none of the above are true, then
2092 * the message body length is zero (no message body is present).
2093 *
2094 * 7. Otherwise, this is a response message without a declared message
2095 * body length, so the message body length is determined by the
2096 * number of octets received prior to the server closing the
2097 * connection.
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2098 */
2099
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2100 ctx.idx = 0;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2101 /* set TE_CHNK and XFER_LEN only if "chunked" is seen last */
Willy Tarreau4979d5c2015-05-01 10:06:30 +0200[diff] [blame]2102 while (http_find_header2("Transfer-Encoding", 17, req->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2103 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]2104 msg->flags |= HTTP_MSGF_TE_CHNK;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2105 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2106 /* chunked not last, return badreq */
2107 goto return_bad_req;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2108 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2109 }
2110
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]2111 /* Chunked requests must have their content-length removed */
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2112 ctx.idx = 0;
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]2113 if (msg->flags & HTTP_MSGF_TE_CHNK) {
2114 while (http_find_header2("Content-Length", 14, req->buf->p, &txn->hdr_idx, &ctx))
2115 http_remove_header2(msg, &txn->hdr_idx, &ctx);
2116 }
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2117 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]2118 signed long long cl;
2119
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2120 if (!ctx.vlen) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2121 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2122 goto return_bad_req;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2123 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2124
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2125 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2126 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2127 goto return_bad_req; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2128 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2129
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2130 if (cl < 0) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2131 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2132 goto return_bad_req;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2133 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2134
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2135 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2136 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2137 goto return_bad_req; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2138 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2139
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]2140 msg->flags |= HTTP_MSGF_CNT_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]2141 msg->body_len = msg->chunk_len = cl;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2142 }
2143
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2144 /* even bodyless requests have a known length */
2145 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2146
Willy Tarreau179085c2014-04-28 16:48:56 +0200[diff] [blame]2147 /* Until set to anything else, the connection mode is set as Keep-Alive. It will
2148 * only change if both the request and the config reference something else.
2149 * Option httpclose by itself sets tunnel mode where headers are mangled.
2150 * However, if another mode is set, it will affect it (eg: server-close/
2151 * keep-alive + httpclose = close). Note that we avoid to redo the same work
2152 * if FE and BE have the same settings (common). The method consists in
2153 * checking if options changed between the two calls (implying that either
2154 * one is non-null, or one of them is non-null and we are there for the first
2155 * time.
2156 */
2157 if (!(txn->flags & TX_HDR_CONN_PRS) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2158 ((sess->fe->options & PR_O_HTTP_MODE) != (s->be->options & PR_O_HTTP_MODE)))
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2159 http_adjust_conn_mode(s, txn, msg);
Willy Tarreau179085c2014-04-28 16:48:56 +0200[diff] [blame]2160
Willy Tarreau9fbe18e2015-05-01 22:42:08 +0200[diff] [blame]2161 /* we may have to wait for the request's body */
2162 if ((s->be->options & PR_O_WREQ_BODY) &&
2163 (msg->body_len || (msg->flags & HTTP_MSGF_TE_CHNK)))
2164 req->analysers |= AN_REQ_HTTP_BODY;
2165
Willy Tarreau83ece462017-12-21 15:13:09 +0100[diff] [blame]2166 /*
2167 * RFC7234#4:
2168 * A cache MUST write through requests with methods
2169 * that are unsafe (Section 4.2.1 of [RFC7231]) to
2170 * the origin server; i.e., a cache is not allowed
2171 * to generate a reply to such a request before
2172 * having forwarded the request and having received
2173 * a corresponding response.
2174 *
2175 * RFC7231#4.2.1:
2176 * Of the request methods defined by this
2177 * specification, the GET, HEAD, OPTIONS, and TRACE
2178 * methods are defined to be safe.
2179 */
2180 if (likely(txn->meth == HTTP_METH_GET ||
2181 txn->meth == HTTP_METH_HEAD ||
2182 txn->meth == HTTP_METH_OPTIONS ||
2183 txn->meth == HTTP_METH_TRACE))
2184 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
2185
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2186 /* end of job, return OK */
Willy Tarreau3a816292009-07-07 10:55:49 +0200[diff] [blame]2187 req->analysers &= ~an_bit;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2188 req->analyse_exp = TICK_ETERNITY;
2189 return 1;
2190
2191 return_bad_req:
2192 /* We centralize bad requests processing here */
2193 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
2194 /* we detected a parsing error. We want to archive this request
2195 * in the dedicated proxy area for later troubleshooting.
2196 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]2197 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]2198 }
2199
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2200 txn->req.err_state = txn->req.msg_state;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2201 txn->req.msg_state = HTTP_MSG_ERROR;
2202 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]2203 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]2204
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]2205 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]2206 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]2207 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2208
2209 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2210 if (!(s->flags & SF_ERR_MASK))
2211 s->flags |= SF_ERR_PRXCOND;
2212 if (!(s->flags & SF_FINST_MASK))
2213 s->flags |= SF_FINST_R;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2214
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]2215 req->analysers &= AN_REQ_FLT_END;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2216 req->analyse_exp = TICK_ETERNITY;
2217 return 0;
2218}
2219
Willy Tarreau4f8a83c2012-06-04 00:26:23 +0200[diff] [blame]2220
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2221/* This function prepares an applet to handle the stats. It can deal with the
2222 * "100-continue" expectation, check that admin rules are met for POST requests,
2223 * and program a response message if something was unexpected. It cannot fail
2224 * 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]2225 * analysers nor counters, which are left to the caller. It does not touch
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2226 * s->target which is supposed to already point to the stats applet. The caller
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2227 * is expected to have already assigned an appctx to the stream.
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2228 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2229int http_handle_stats(struct stream *s, struct channel *req)
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2230{
2231 struct stats_admin_rule *stats_admin_rule;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]2232 struct stream_interface *si = &s->si[1];
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2233 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2234 struct http_txn *txn = s->txn;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2235 struct http_msg *msg = &txn->req;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2236 struct uri_auth *uri_auth = s->be->uri_auth;
2237 const char *uri, *h, *lookup;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2238 struct appctx *appctx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2239
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2240 appctx = si_appctx(si);
2241 memset(&appctx->ctx.stats, 0, sizeof(appctx->ctx.stats));
2242 appctx->st1 = appctx->st2 = 0;
2243 appctx->ctx.stats.st_code = STAT_STATUS_INIT;
2244 appctx->ctx.stats.flags |= STAT_FMT_HTML; /* assume HTML mode by default */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2245 if ((msg->flags & HTTP_MSGF_VER_11) && (s->txn->meth != HTTP_METH_HEAD))
Willy Tarreauaf3cf702014-04-22 22:19:53 +0200[diff] [blame]2246 appctx->ctx.stats.flags |= STAT_CHUNKED;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2247
2248 uri = msg->chn->buf->p + msg->sl.rq.u;
2249 lookup = uri + uri_auth->uri_len;
2250
2251 for (h = lookup; h <= uri + msg->sl.rq.u_l - 3; h++) {
2252 if (memcmp(h, ";up", 3) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2253 appctx->ctx.stats.flags |= STAT_HIDE_DOWN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2254 break;
2255 }
2256 }
2257
2258 if (uri_auth->refresh) {
2259 for (h = lookup; h <= uri + msg->sl.rq.u_l - 10; h++) {
2260 if (memcmp(h, ";norefresh", 10) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2261 appctx->ctx.stats.flags |= STAT_NO_REFRESH;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2262 break;
2263 }
2264 }
2265 }
2266
2267 for (h = lookup; h <= uri + msg->sl.rq.u_l - 4; h++) {
2268 if (memcmp(h, ";csv", 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2269 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2270 break;
2271 }
2272 }
2273
Willy Tarreau1e62df92016-01-11 18:57:53 +0100[diff] [blame]2274 for (h = lookup; h <= uri + msg->sl.rq.u_l - 6; h++) {
2275 if (memcmp(h, ";typed", 6) == 0) {
2276 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
2277 appctx->ctx.stats.flags |= STAT_FMT_TYPED;
2278 break;
2279 }
2280 }
2281
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2282 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
2283 if (memcmp(h, ";st=", 4) == 0) {
2284 int i;
2285 h += 4;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2286 appctx->ctx.stats.st_code = STAT_STATUS_UNKN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2287 for (i = STAT_STATUS_INIT + 1; i < STAT_STATUS_SIZE; i++) {
2288 if (strncmp(stat_status_codes[i], h, 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2289 appctx->ctx.stats.st_code = i;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2290 break;
2291 }
2292 }
2293 break;
2294 }
2295 }
2296
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2297 appctx->ctx.stats.scope_str = 0;
2298 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2299 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
2300 if (memcmp(h, STAT_SCOPE_INPUT_NAME "=", strlen(STAT_SCOPE_INPUT_NAME) + 1) == 0) {
2301 int itx = 0;
2302 const char *h2;
2303 char scope_txt[STAT_SCOPE_TXT_MAXLEN + 1];
2304 const char *err;
2305
2306 h += strlen(STAT_SCOPE_INPUT_NAME) + 1;
2307 h2 = h;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2308 appctx->ctx.stats.scope_str = h2 - msg->chn->buf->p;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2309 while (*h != ';' && *h != '\0' && *h != '&' && *h != ' ' && *h != '\n') {
2310 itx++;
2311 h++;
2312 }
2313
2314 if (itx > STAT_SCOPE_TXT_MAXLEN)
2315 itx = STAT_SCOPE_TXT_MAXLEN;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2316 appctx->ctx.stats.scope_len = itx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2317
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2318 /* 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]2319 memcpy(scope_txt, h2, itx);
2320 scope_txt[itx] = '\0';
2321 err = invalid_char(scope_txt);
2322 if (err) {
2323 /* bad char in search text => clear scope */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2324 appctx->ctx.stats.scope_str = 0;
2325 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2326 }
2327 break;
2328 }
2329 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2330
2331 /* now check whether we have some admin rules for this request */
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2332 list_for_each_entry(stats_admin_rule, &uri_auth->admin_rules, list) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2333 int ret = 1;
2334
2335 if (stats_admin_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2336 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]2337 ret = acl_pass(ret);
2338 if (stats_admin_rule->cond->pol == ACL_COND_UNLESS)
2339 ret = !ret;
2340 }
2341
2342 if (ret) {
2343 /* no rule, or the rule matches */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2344 appctx->ctx.stats.flags |= STAT_ADMIN;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2345 break;
2346 }
2347 }
2348
2349 /* Was the status page requested with a POST ? */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]2350 if (unlikely(txn->meth == HTTP_METH_POST && txn->req.body_len > 0)) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2351 if (appctx->ctx.stats.flags & STAT_ADMIN) {
Willy Tarreaucfe7fdd2014-04-26 22:08:32 +0200[diff] [blame]2352 /* we'll need the request body, possibly after sending 100-continue */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]2353 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE)
2354 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2355 appctx->st0 = STAT_HTTP_POST;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2356 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2357 else {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2358 appctx->ctx.stats.st_code = STAT_STATUS_DENY;
2359 appctx->st0 = STAT_HTTP_LAST;
de Lafond Guillaume88c278f2013-04-15 19:27:10 +0200[diff] [blame]2360 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2361 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2362 else {
2363 /* So it was another method (GET/HEAD) */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2364 appctx->st0 = STAT_HTTP_HEAD;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2365 }
2366
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2367 s->task->nice = -32; /* small boost for HTTP statistics */
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2368 return 1;
2369}
2370
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2371/* Sets the TOS header in IPv4 and the traffic class header in IPv6 packets
2372 * (as per RFC3260 #4 and BCP37 #4.2 and #5.2).
2373 */
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2374void inet_set_tos(int fd, const struct sockaddr_storage *from, int tos)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2375{
2376#ifdef IP_TOS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2377 if (from->ss_family == AF_INET)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2378 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
2379#endif
2380#ifdef IPV6_TCLASS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2381 if (from->ss_family == AF_INET6) {
2382 if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)from)->sin6_addr))
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2383 /* v4-mapped addresses need IP_TOS */
2384 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
2385 else
2386 setsockopt(fd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof(tos));
2387 }
2388#endif
2389}
2390
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2391int http_transform_header_str(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2392 const char* name, unsigned int name_len,
2393 const char *str, struct my_regex *re,
2394 int action)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2395{
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2396 struct hdr_ctx ctx;
2397 char *buf = msg->chn->buf->p;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2398 struct hdr_idx *idx = &s->txn->hdr_idx;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2399 int (*http_find_hdr_func)(const char *name, int len, char *sol,
2400 struct hdr_idx *idx, struct hdr_ctx *ctx);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2401 struct chunk *output = get_trash_chunk();
2402
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2403 ctx.idx = 0;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2404
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2405 /* Choose the header browsing function. */
2406 switch (action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2407 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2408 http_find_hdr_func = http_find_header2;
2409 break;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2410 case ACT_HTTP_REPLACE_HDR:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2411 http_find_hdr_func = http_find_full_header2;
2412 break;
2413 default: /* impossible */
2414 return -1;
2415 }
2416
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2417 while (http_find_hdr_func(name, name_len, buf, idx, &ctx)) {
2418 struct hdr_idx_elem *hdr = idx->v + ctx.idx;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2419 int delta;
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2420 char *val = ctx.line + ctx.val;
2421 char* val_end = val + ctx.vlen;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2422
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2423 if (!regex_exec_match2(re, val, val_end-val, MAX_MATCH, pmatch, 0))
2424 continue;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2425
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2426 output->len = exp_replace(output->str, output->size, val, str, pmatch);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2427 if (output->len == -1)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2428 return -1;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2429
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2430 delta = buffer_replace2(msg->chn->buf, val, val_end, output->str, output->len);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2431
2432 hdr->len += delta;
2433 http_msg_move_end(msg, delta);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2434
2435 /* Adjust the length of the current value of the index. */
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2436 ctx.vlen += delta;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2437 }
2438
2439 return 0;
2440}
2441
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2442static int http_transform_header(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2443 const char* name, unsigned int name_len,
2444 struct list *fmt, struct my_regex *re,
2445 int action)
2446{
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2447 struct chunk *replace;
2448 int ret = -1;
2449
2450 replace = alloc_trash_chunk();
2451 if (!replace)
2452 goto leave;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2453
2454 replace->len = build_logline(s, replace->str, replace->size, fmt);
2455 if (replace->len >= replace->size - 1)
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2456 goto leave;
2457
2458 ret = http_transform_header_str(s, msg, name, name_len, replace->str, re, action);
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2459
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2460 leave:
2461 free_trash_chunk(replace);
2462 return ret;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2463}
2464
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2465/* Executes the http-request rules <rules> for stream <s>, proxy <px> and
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2466 * transaction <txn>. Returns the verdict of the first rule that prevents
2467 * further processing of the request (auth, deny, ...), and defaults to
2468 * HTTP_RULE_RES_STOP if it executed all rules or stopped on an allow, or
2469 * 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]2470 * on txn->flags if it encounters a tarpit rule. If <deny_status> is not NULL
2471 * and a deny/tarpit rule is matched, it will be filled with this rule's deny
2472 * status.
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2473 */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2474enum rule_result
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2475http_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]2476{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2477 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2478 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]2479 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]2480 struct act_rule *rule;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]2481 struct hdr_ctx ctx;
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]2482 const char *auth_realm;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2483 int act_flags = 0;
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2484 int len;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2485
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2486 /* If "the current_rule_list" match the executed rule list, we are in
2487 * resume condition. If a resume is needed it is always in the action
2488 * and never in the ACL or converters. In this case, we initialise the
2489 * current rule, and go to the action execution point.
2490 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2491 if (s->current_rule) {
2492 rule = s->current_rule;
2493 s->current_rule = NULL;
2494 if (s->current_rule_list == rules)
2495 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2496 }
2497 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2498
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2499 list_for_each_entry(rule, rules, list) {
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2500
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2501 /* check optional condition */
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2502 if (rule->cond) {
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2503 int ret;
2504
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2505 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]2506 ret = acl_pass(ret);
2507
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2508 if (rule->cond->pol == ACL_COND_UNLESS)
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2509 ret = !ret;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2510
2511 if (!ret) /* condition not matched */
2512 continue;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2513 }
2514
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2515 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2516resume_execution:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2517 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2518 case ACT_ACTION_ALLOW:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2519 return HTTP_RULE_RES_STOP;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2520
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2521 case ACT_ACTION_DENY:
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2522 if (deny_status)
2523 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2524 return HTTP_RULE_RES_DENY;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2525
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2526 case ACT_HTTP_REQ_TARPIT:
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]2527 txn->flags |= TX_CLTARPIT;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2528 if (deny_status)
2529 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2530 return HTTP_RULE_RES_DENY;
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]2531
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2532 case ACT_HTTP_REQ_AUTH:
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]2533 /* Auth might be performed on regular http-req rules as well as on stats */
2534 auth_realm = rule->arg.auth.realm;
2535 if (!auth_realm) {
2536 if (px->uri_auth && rules == &px->uri_auth->http_req_rules)
2537 auth_realm = STATS_DEFAULT_REALM;
2538 else
2539 auth_realm = px->id;
2540 }
2541 /* send 401/407 depending on whether we use a proxy or not. We still
2542 * count one error, because normal browsing won't significantly
2543 * increase the counter but brute force attempts will.
2544 */
2545 chunk_printf(&trash, (txn->flags & TX_USE_PX_CONN) ? HTTP_407_fmt : HTTP_401_fmt, auth_realm);
2546 txn->status = (txn->flags & TX_USE_PX_CONN) ? 407 : 401;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2547 http_reply_and_close(s, txn->status, &trash);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2548 stream_inc_http_err_ctr(s);
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2549 return HTTP_RULE_RES_ABRT;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2550
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2551 case ACT_HTTP_REDIR:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2552 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
2553 return HTTP_RULE_RES_BADREQ;
2554 return HTTP_RULE_RES_DONE;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]2555
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2556 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]2557 s->task->nice = rule->arg.nice;
2558 break;
2559
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2560 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2561 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2562 inet_set_tos(cli_conn->handle.fd, &cli_conn->addr.from, rule->arg.tos);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]2563 break;
2564
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2565 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2566#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2567 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2568 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]2569#endif
2570 break;
2571
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2572 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]2573 s->logs.level = rule->arg.loglevel;
2574 break;
2575
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2576 case ACT_HTTP_REPLACE_HDR:
2577 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2578 if (http_transform_header(s, &txn->req, rule->arg.hdr_add.name,
2579 rule->arg.hdr_add.name_len,
2580 &rule->arg.hdr_add.fmt,
2581 &rule->arg.hdr_add.re, rule->action))
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2582 return HTTP_RULE_RES_BADREQ;
2583 break;
2584
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2585 case ACT_HTTP_DEL_HDR:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2586 ctx.idx = 0;
2587 /* remove all occurrences of the header */
2588 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2589 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
2590 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]2591 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2592 break;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2593
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2594 case ACT_HTTP_SET_HDR:
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2595 case ACT_HTTP_ADD_HDR: {
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2596 /* The scope of the trash buffer must be limited to this function. The
2597 * build_logline() function can execute a lot of other function which
2598 * can use the trash buffer. So for limiting the scope of this global
2599 * buffer, we build first the header value using build_logline, and
2600 * after we store the header name.
2601 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2602 struct chunk *replace;
2603
2604 replace = alloc_trash_chunk();
2605 if (!replace)
2606 return HTTP_RULE_RES_BADREQ;
2607
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2608 len = rule->arg.hdr_add.name_len + 2,
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2609 len += build_logline(s, replace->str + len, replace->size - len, &rule->arg.hdr_add.fmt);
2610 memcpy(replace->str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
2611 replace->str[rule->arg.hdr_add.name_len] = ':';
2612 replace->str[rule->arg.hdr_add.name_len + 1] = ' ';
2613 replace->len = len;
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2614
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2615 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2616 /* remove all occurrences of the header */
2617 ctx.idx = 0;
2618 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2619 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
2620 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
2621 }
2622 }
2623
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2624 http_header_add_tail2(&txn->req, &txn->hdr_idx, replace->str, replace->len);
2625
2626 free_trash_chunk(replace);
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2627 break;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2628 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2629
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2630 case ACT_HTTP_DEL_ACL:
2631 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2632 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2633 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2634
2635 /* collect reference */
2636 ref = pat_ref_lookup(rule->arg.map.ref);
2637 if (!ref)
2638 continue;
2639
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2640 /* allocate key */
2641 key = alloc_trash_chunk();
2642 if (!key)
2643 return HTTP_RULE_RES_BADREQ;
2644
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2645 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2646 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2647 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2648
2649 /* perform update */
2650 /* returned code: 1=ok, 0=ko */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2651 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2652 pat_ref_delete(ref, key->str);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2653 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2654
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2655 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2656 break;
2657 }
2658
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2659 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2660 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2661 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2662
2663 /* collect reference */
2664 ref = pat_ref_lookup(rule->arg.map.ref);
2665 if (!ref)
2666 continue;
2667
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2668 /* allocate key */
2669 key = alloc_trash_chunk();
2670 if (!key)
2671 return HTTP_RULE_RES_BADREQ;
2672
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2673 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2674 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2675 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2676
2677 /* perform update */
2678 /* add entry only if it does not already exist */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2679 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2680 if (pat_ref_find_elt(ref, key->str) == NULL)
2681 pat_ref_add(ref, key->str, NULL, NULL);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2682 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2683
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2684 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2685 break;
2686 }
2687
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2688 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2689 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2690 struct chunk *key, *value;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2691
2692 /* collect reference */
2693 ref = pat_ref_lookup(rule->arg.map.ref);
2694 if (!ref)
2695 continue;
2696
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2697 /* allocate key */
2698 key = alloc_trash_chunk();
2699 if (!key)
2700 return HTTP_RULE_RES_BADREQ;
2701
2702 /* allocate value */
2703 value = alloc_trash_chunk();
2704 if (!value) {
2705 free_trash_chunk(key);
2706 return HTTP_RULE_RES_BADREQ;
2707 }
2708
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2709 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2710 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2711 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2712
2713 /* collect value */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2714 value->len = build_logline(s, value->str, value->size, &rule->arg.map.value);
2715 value->str[value->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2716
2717 /* perform update */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2718 if (pat_ref_find_elt(ref, key->str) != NULL)
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2719 /* update entry if it exists */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2720 pat_ref_set(ref, key->str, value->str, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2721 else
2722 /* insert a new entry */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2723 pat_ref_add(ref, key->str, value->str, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2724
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2725 free_trash_chunk(key);
2726 free_trash_chunk(value);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2727 break;
2728 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]2729
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]2730 case ACT_CUSTOM:
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]2731 if ((s->req.flags & CF_READ_ERROR) ||
2732 ((s->req.flags & (CF_SHUTR|CF_READ_NULL)) &&
2733 !(s->si[0].flags & SI_FL_CLEAN_ABRT) &&
2734 (px->options & PR_O_ABRT_CLOSE)))
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2735 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]2736
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2737 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]2738 case ACT_RET_ERR:
2739 case ACT_RET_CONT:
2740 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]2741 case ACT_RET_STOP:
2742 return HTTP_RULE_RES_DONE;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]2743 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2744 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2745 return HTTP_RULE_RES_YIELD;
2746 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]2747 break;
2748
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2749 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2750 /* Note: only the first valid tracking parameter of each
2751 * applies.
2752 */
2753
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2754 if (stkctr_entry(&s->stkctr[trk_idx(rule->action)]) == NULL) {
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2755 struct stktable *t;
2756 struct stksess *ts;
2757 struct stktable_key *key;
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]2758 void *ptr1, *ptr2;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2759
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]2760 t = rule->arg.trk_ctr.table.t;
2761 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]2762
2763 if (key && (ts = stktable_get_entry(t, key))) {
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2764 stream_track_stkctr(&s->stkctr[trk_idx(rule->action)], t, ts);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2765
2766 /* 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]2767 ptr1 = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
2768 ptr2 = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
2769 if (ptr1 || ptr2) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2770 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2771
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]2772 if (ptr1)
2773 stktable_data_cast(ptr1, http_req_cnt)++;
2774
2775 if (ptr2)
2776 update_freq_ctr_period(&stktable_data_cast(ptr2, http_req_rate),
2777 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
2778
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2779 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun0fed0b02017-11-29 16:15:07 +0100[diff] [blame]2780
2781 /* If data was modified, we need to touch to re-schedule sync */
2782 stktable_touch_local(t, ts, 0);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]2783 }
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2784
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2785 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2786 if (sess->fe != s->be)
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2787 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2788 }
2789 }
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]2790 break;
2791
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]2792 /* other flags exists, but normaly, they never be matched. */
2793 default:
2794 break;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2795 }
2796 }
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2797
2798 /* we reached the end of the rules, nothing to report */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2799 return HTTP_RULE_RES_CONT;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2800}
2801
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]2802
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]2803/* Executes the http-response rules <rules> for stream <s> and proxy <px>. It
2804 * returns one of 5 possible statuses: HTTP_RULE_RES_CONT, HTTP_RULE_RES_STOP,
2805 * HTTP_RULE_RES_DONE, HTTP_RULE_RES_YIELD, or HTTP_RULE_RES_BADREQ. If *CONT
2806 * is returned, the process can continue the evaluation of next rule list. If
2807 * *STOP or *DONE is returned, the process must stop the evaluation. If *BADREQ
2808 * is returned, it means the operation could not be processed and a server error
2809 * must be returned. It may set the TX_SVDENY on txn->flags if it encounters a
2810 * deny rule. If *YIELD is returned, the caller must call again the function
2811 * with the same context.
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2812 */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2813static enum rule_result
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2814http_res_get_intercept_rule(struct proxy *px, struct list *rules, struct stream *s)
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2815{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2816 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2817 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]2818 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]2819 struct act_rule *rule;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2820 struct hdr_ctx ctx;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2821 int act_flags = 0;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2822
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2823 /* If "the current_rule_list" match the executed rule list, we are in
2824 * resume condition. If a resume is needed it is always in the action
2825 * and never in the ACL or converters. In this case, we initialise the
2826 * current rule, and go to the action execution point.
2827 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2828 if (s->current_rule) {
2829 rule = s->current_rule;
2830 s->current_rule = NULL;
2831 if (s->current_rule_list == rules)
2832 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2833 }
2834 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2835
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2836 list_for_each_entry(rule, rules, list) {
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2837
2838 /* check optional condition */
2839 if (rule->cond) {
2840 int ret;
2841
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2842 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]2843 ret = acl_pass(ret);
2844
2845 if (rule->cond->pol == ACL_COND_UNLESS)
2846 ret = !ret;
2847
2848 if (!ret) /* condition not matched */
2849 continue;
2850 }
2851
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2852 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2853resume_execution:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2854 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2855 case ACT_ACTION_ALLOW:
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2856 return HTTP_RULE_RES_STOP; /* "allow" rules are OK */
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2857
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2858 case ACT_ACTION_DENY:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2859 txn->flags |= TX_SVDENY;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2860 return HTTP_RULE_RES_STOP;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2861
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2862 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]2863 s->task->nice = rule->arg.nice;
2864 break;
2865
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2866 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2867 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2868 inet_set_tos(cli_conn->handle.fd, &cli_conn->addr.from, rule->arg.tos);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]2869 break;
2870
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2871 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2872#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2873 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2874 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]2875#endif
2876 break;
2877
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2878 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]2879 s->logs.level = rule->arg.loglevel;
2880 break;
2881
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2882 case ACT_HTTP_REPLACE_HDR:
2883 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2884 if (http_transform_header(s, &txn->rsp, rule->arg.hdr_add.name,
2885 rule->arg.hdr_add.name_len,
2886 &rule->arg.hdr_add.fmt,
2887 &rule->arg.hdr_add.re, rule->action))
Christopher Fauletcdade942017-02-08 12:41:31 +0100[diff] [blame]2888 return HTTP_RULE_RES_BADREQ;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2889 break;
2890
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2891 case ACT_HTTP_DEL_HDR:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2892 ctx.idx = 0;
2893 /* remove all occurrences of the header */
2894 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2895 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
2896 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
2897 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2898 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2899
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2900 case ACT_HTTP_SET_HDR:
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2901 case ACT_HTTP_ADD_HDR: {
2902 struct chunk *replace;
2903
2904 replace = alloc_trash_chunk();
2905 if (!replace)
2906 return HTTP_RULE_RES_BADREQ;
2907
2908 chunk_printf(replace, "%s: ", rule->arg.hdr_add.name);
2909 memcpy(replace->str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
2910 replace->len = rule->arg.hdr_add.name_len;
2911 replace->str[replace->len++] = ':';
2912 replace->str[replace->len++] = ' ';
2913 replace->len += build_logline(s, replace->str + replace->len, replace->size - replace->len,
2914 &rule->arg.hdr_add.fmt);
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2915
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2916 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2917 /* remove all occurrences of the header */
2918 ctx.idx = 0;
2919 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2920 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
2921 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
2922 }
2923 }
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2924 http_header_add_tail2(&txn->rsp, &txn->hdr_idx, replace->str, replace->len);
2925
2926 free_trash_chunk(replace);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2927 break;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2928 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2929
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2930 case ACT_HTTP_DEL_ACL:
2931 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2932 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2933 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2934
2935 /* collect reference */
2936 ref = pat_ref_lookup(rule->arg.map.ref);
2937 if (!ref)
2938 continue;
2939
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2940 /* allocate key */
2941 key = alloc_trash_chunk();
2942 if (!key)
2943 return HTTP_RULE_RES_BADREQ;
2944
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2945 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2946 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2947 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2948
2949 /* perform update */
2950 /* returned code: 1=ok, 0=ko */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2951 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2952 pat_ref_delete(ref, key->str);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2953 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2954
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2955 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2956 break;
2957 }
2958
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2959 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2960 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2961 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2962
2963 /* collect reference */
2964 ref = pat_ref_lookup(rule->arg.map.ref);
2965 if (!ref)
2966 continue;
2967
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2968 /* allocate key */
2969 key = alloc_trash_chunk();
2970 if (!key)
2971 return HTTP_RULE_RES_BADREQ;
2972
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2973 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2974 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2975 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2976
2977 /* perform update */
2978 /* check if the entry already exists */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2979 if (pat_ref_find_elt(ref, key->str) == NULL)
2980 pat_ref_add(ref, key->str, NULL, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2981
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2982 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2983 break;
2984 }
2985
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2986 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2987 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2988 struct chunk *key, *value;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2989
2990 /* collect reference */
2991 ref = pat_ref_lookup(rule->arg.map.ref);
2992 if (!ref)
2993 continue;
2994
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2995 /* allocate key */
2996 key = alloc_trash_chunk();
2997 if (!key)
2998 return HTTP_RULE_RES_BADREQ;
2999
3000 /* allocate value */
3001 value = alloc_trash_chunk();
3002 if (!value) {
3003 free_trash_chunk(key);
3004 return HTTP_RULE_RES_BADREQ;
3005 }
3006
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3007 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3008 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
3009 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3010
3011 /* collect value */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3012 value->len = build_logline(s, value->str, value->size, &rule->arg.map.value);
3013 value->str[value->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3014
3015 /* perform update */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3016 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3017 if (pat_ref_find_elt(ref, key->str) != NULL)
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3018 /* update entry if it exists */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3019 pat_ref_set(ref, key->str, value->str, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3020 else
3021 /* insert a new entry */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3022 pat_ref_add(ref, key->str, value->str, NULL);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3023 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3024 free_trash_chunk(key);
3025 free_trash_chunk(value);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3026 break;
3027 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3028
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3029 case ACT_HTTP_REDIR:
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3030 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
3031 return HTTP_RULE_RES_BADREQ;
3032 return HTTP_RULE_RES_DONE;
3033
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3034 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
3035 /* Note: only the first valid tracking parameter of each
3036 * applies.
3037 */
3038
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]3039 if (stkctr_entry(&s->stkctr[trk_idx(rule->action)]) == NULL) {
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3040 struct stktable *t;
3041 struct stksess *ts;
3042 struct stktable_key *key;
3043 void *ptr;
3044
3045 t = rule->arg.trk_ctr.table.t;
3046 key = stktable_fetch_key(t, s->be, sess, s, SMP_OPT_DIR_RES | SMP_OPT_FINAL, rule->arg.trk_ctr.expr, NULL);
3047
3048 if (key && (ts = stktable_get_entry(t, key))) {
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]3049 stream_track_stkctr(&s->stkctr[trk_idx(rule->action)], t, ts);
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3050
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3051 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3052
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3053 /* let's count a new HTTP request as it's the first time we do it */
3054 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
3055 if (ptr)
3056 stktable_data_cast(ptr, http_req_cnt)++;
3057
3058 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
3059 if (ptr)
3060 update_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
3061 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
3062
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3063 /* When the client triggers a 4xx from the server, it's most often due
3064 * to a missing object or permission. These events should be tracked
3065 * because if they happen often, it may indicate a brute force or a
3066 * vulnerability scan. Normally this is done when receiving the response
3067 * but here we're tracking after this ought to have been done so we have
3068 * to do it on purpose.
3069 */
Willy Tarreau3146a4c2016-07-26 15:22:33 +0200[diff] [blame]3070 if ((unsigned)(txn->status - 400) < 100) {
3071 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_ERR_CNT);
3072 if (ptr)
3073 stktable_data_cast(ptr, http_err_cnt)++;
3074
3075 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_ERR_RATE);
3076 if (ptr)
3077 update_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
3078 t->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u, 1);
3079 }
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3080
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3081 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3082
Emeric Brun0fed0b02017-11-29 16:15:07 +0100[diff] [blame]3083 /* If data was modified, we need to touch to re-schedule sync */
3084 stktable_touch_local(t, ts, 0);
3085
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3086 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
3087 if (sess->fe != s->be)
3088 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
3089
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3090 }
3091 }
3092 break;
3093
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3094 case ACT_CUSTOM:
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]3095 if ((s->req.flags & CF_READ_ERROR) ||
3096 ((s->req.flags & (CF_SHUTR|CF_READ_NULL)) &&
3097 !(s->si[0].flags & SI_FL_CLEAN_ABRT) &&
3098 (px->options & PR_O_ABRT_CLOSE)))
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3099 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]3100
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3101 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3102 case ACT_RET_ERR:
3103 case ACT_RET_CONT:
3104 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3105 case ACT_RET_STOP:
3106 return HTTP_RULE_RES_STOP;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3107 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3108 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3109 return HTTP_RULE_RES_YIELD;
3110 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3111 break;
3112
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]3113 /* other flags exists, but normaly, they never be matched. */
3114 default:
3115 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3116 }
3117 }
3118
3119 /* we reached the end of the rules, nothing to report */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3120 return HTTP_RULE_RES_CONT;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3121}
3122
3123
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3124/* Perform an HTTP redirect based on the information in <rule>. The function
3125 * returns non-zero on success, or zero in case of a, irrecoverable error such
3126 * as too large a request to build a valid response.
3127 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3128static 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]3129{
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3130 struct http_msg *req = &txn->req;
3131 struct http_msg *res = &txn->rsp;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3132 const char *msg_fmt;
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3133 struct chunk *chunk;
3134 int ret = 0;
3135
3136 chunk = alloc_trash_chunk();
3137 if (!chunk)
3138 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3139
3140 /* build redirect message */
3141 switch(rule->code) {
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]3142 case 308:
3143 msg_fmt = HTTP_308;
3144 break;
3145 case 307:
3146 msg_fmt = HTTP_307;
3147 break;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3148 case 303:
3149 msg_fmt = HTTP_303;
3150 break;
3151 case 301:
3152 msg_fmt = HTTP_301;
3153 break;
3154 case 302:
3155 default:
3156 msg_fmt = HTTP_302;
3157 break;
3158 }
3159
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3160 if (unlikely(!chunk_strcpy(chunk, msg_fmt)))
3161 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3162
3163 switch(rule->type) {
3164 case REDIRECT_TYPE_SCHEME: {
3165 const char *path;
3166 const char *host;
3167 struct hdr_ctx ctx;
3168 int pathlen;
3169 int hostlen;
3170
3171 host = "";
3172 hostlen = 0;
3173 ctx.idx = 0;
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3174 if (http_find_header2("Host", 4, req->chn->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3175 host = ctx.line + ctx.val;
3176 hostlen = ctx.vlen;
3177 }
3178
3179 path = http_get_path(txn);
3180 /* build message using path */
3181 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3182 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]3183 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3184 int qs = 0;
3185 while (qs < pathlen) {
3186 if (path[qs] == '?') {
3187 pathlen = qs;
3188 break;
3189 }
3190 qs++;
3191 }
3192 }
3193 } else {
3194 path = "/";
3195 pathlen = 1;
3196 }
3197
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3198 if (rule->rdr_str) { /* this is an old "redirect" rule */
3199 /* check if we can add scheme + "://" + host + path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3200 if (chunk->len + rule->rdr_len + 3 + hostlen + pathlen > chunk->size - 4)
3201 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3202
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3203 /* add scheme */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3204 memcpy(chunk->str + chunk->len, rule->rdr_str, rule->rdr_len);
3205 chunk->len += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3206 }
3207 else {
3208 /* add scheme with executing log format */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3209 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]3210
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3211 /* check if we can add scheme + "://" + host + path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3212 if (chunk->len + 3 + hostlen + pathlen > chunk->size - 4)
3213 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3214 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3215 /* add "://" */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3216 memcpy(chunk->str + chunk->len, "://", 3);
3217 chunk->len += 3;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3218
3219 /* add host */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3220 memcpy(chunk->str + chunk->len, host, hostlen);
3221 chunk->len += hostlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3222
3223 /* add path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3224 memcpy(chunk->str + chunk->len, path, pathlen);
3225 chunk->len += pathlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3226
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3227 /* append a slash at the end of the location if needed and missing */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3228 if (chunk->len && chunk->str[chunk->len - 1] != '/' &&
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3229 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3230 if (chunk->len > chunk->size - 5)
3231 goto leave;
3232 chunk->str[chunk->len] = '/';
3233 chunk->len++;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3234 }
3235
3236 break;
3237 }
3238 case REDIRECT_TYPE_PREFIX: {
3239 const char *path;
3240 int pathlen;
3241
3242 path = http_get_path(txn);
3243 /* build message using path */
3244 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3245 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]3246 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3247 int qs = 0;
3248 while (qs < pathlen) {
3249 if (path[qs] == '?') {
3250 pathlen = qs;
3251 break;
3252 }
3253 qs++;
3254 }
3255 }
3256 } else {
3257 path = "/";
3258 pathlen = 1;
3259 }
3260
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3261 if (rule->rdr_str) { /* this is an old "redirect" rule */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3262 if (chunk->len + rule->rdr_len + pathlen > chunk->size - 4)
3263 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3264
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3265 /* add prefix. Note that if prefix == "/", we don't want to
3266 * add anything, otherwise it makes it hard for the user to
3267 * configure a self-redirection.
3268 */
3269 if (rule->rdr_len != 1 || *rule->rdr_str != '/') {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3270 memcpy(chunk->str + chunk->len, rule->rdr_str, rule->rdr_len);
3271 chunk->len += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3272 }
3273 }
3274 else {
3275 /* add prefix with executing log format */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3276 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]3277
3278 /* Check length */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3279 if (chunk->len + pathlen > chunk->size - 4)
3280 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3281 }
3282
3283 /* add path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3284 memcpy(chunk->str + chunk->len, path, pathlen);
3285 chunk->len += pathlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3286
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3287 /* append a slash at the end of the location if needed and missing */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3288 if (chunk->len && chunk->str[chunk->len - 1] != '/' &&
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3289 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3290 if (chunk->len > chunk->size - 5)
3291 goto leave;
3292 chunk->str[chunk->len] = '/';
3293 chunk->len++;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3294 }
3295
3296 break;
3297 }
3298 case REDIRECT_TYPE_LOCATION:
3299 default:
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3300 if (rule->rdr_str) { /* this is an old "redirect" rule */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3301 if (chunk->len + rule->rdr_len > chunk->size - 4)
3302 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3303
3304 /* add location */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3305 memcpy(chunk->str + chunk->len, rule->rdr_str, rule->rdr_len);
3306 chunk->len += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3307 }
3308 else {
3309 /* add location with executing log format */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3310 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]3311
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3312 /* Check left length */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3313 if (chunk->len > chunk->size - 4)
3314 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3315 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3316 break;
3317 }
3318
3319 if (rule->cookie_len) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3320 memcpy(chunk->str + chunk->len, "\r\nSet-Cookie: ", 14);
3321 chunk->len += 14;
3322 memcpy(chunk->str + chunk->len, rule->cookie_str, rule->cookie_len);
3323 chunk->len += rule->cookie_len;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3324 }
3325
Willy Tarreau19b14122017-02-28 09:48:11 +0100[diff] [blame]3326 /* add end of headers and the keep-alive/close status. */
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3327 txn->status = rule->code;
3328 /* let's log the request time */
3329 s->logs.tv_request = now;
3330
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3331 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]3332 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
3333 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
3334 /* keep-alive possible */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3335 if (!(req->flags & HTTP_MSGF_VER_11)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3336 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3337 memcpy(chunk->str + chunk->len, "\r\nProxy-Connection: keep-alive", 30);
3338 chunk->len += 30;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3339 } else {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3340 memcpy(chunk->str + chunk->len, "\r\nConnection: keep-alive", 24);
3341 chunk->len += 24;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3342 }
3343 }
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3344 memcpy(chunk->str + chunk->len, "\r\n\r\n", 4);
3345 chunk->len += 4;
3346 FLT_STRM_CB(s, flt_http_reply(s, txn->status, chunk));
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]3347 co_inject(res->chn, chunk->str, chunk->len);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3348 /* "eat" the request */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3349 bi_fast_delete(req->chn->buf, req->sov);
3350 req->next -= req->sov;
3351 req->sov = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3352 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]3353 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]3354 req->msg_state = HTTP_MSG_CLOSED;
3355 res->msg_state = HTTP_MSG_DONE;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3356 /* Trim any possible response */
3357 res->chn->buf->i = 0;
3358 res->next = res->sov = 0;
Christopher Faulet5d468ca2017-09-11 09:27:29 +0200[diff] [blame]3359 /* let the server side turn to SI_ST_CLO */
3360 channel_shutw_now(req->chn);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3361 } else {
3362 /* keep-alive not possible */
3363 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3364 memcpy(chunk->str + chunk->len, "\r\nProxy-Connection: close\r\n\r\n", 29);
3365 chunk->len += 29;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3366 } else {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3367 memcpy(chunk->str + chunk->len, "\r\nConnection: close\r\n\r\n", 23);
3368 chunk->len += 23;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3369 }
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3370 http_reply_and_close(s, txn->status, chunk);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3371 req->chn->analysers &= AN_REQ_FLT_END;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3372 }
3373
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3374 if (!(s->flags & SF_ERR_MASK))
3375 s->flags |= SF_ERR_LOCAL;
3376 if (!(s->flags & SF_FINST_MASK))
3377 s->flags |= SF_FINST_R;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3378
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3379 ret = 1;
3380 leave:
3381 free_trash_chunk(chunk);
3382 return ret;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3383}
3384
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3385/* This stream analyser runs all HTTP request processing which is common to
3386 * frontends and backends, which means blocking ACLs, filters, connection-close,
3387 * reqadd, stats and redirects. This is performed for the designated proxy.
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3388 * 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]3389 * either needs more data or wants to immediately abort the request (eg: deny,
3390 * error, ...).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3391 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3392int 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]3393{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3394 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3395 struct http_txn *txn = s->txn;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3396 struct http_msg *msg = &txn->req;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3397 struct redirect_rule *rule;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100[diff] [blame]3398 struct cond_wordlist *wl;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3399 enum rule_result verdict;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3400 int deny_status = HTTP_ERR_403;
Olivier Houchardc2aae742017-09-22 18:26:28 +0200[diff] [blame]3401 struct connection *conn = objt_conn(sess->origin);
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3402
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]3403 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3404 /* we need more data */
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3405 goto return_prx_yield;
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3406 }
3407
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3408 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]3409 now_ms, __FUNCTION__,
3410 s,
3411 req,
3412 req->rex, req->wex,
3413 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3414 req->buf->i,
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3415 req->analysers);
3416
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]3417 /* just in case we have some per-backend tracking */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3418 stream_inc_be_http_req_ctr(s);
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]3419
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3420 /* evaluate http-request rules */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3421 if (!LIST_ISEMPTY(&px->http_req_rules)) {
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3422 verdict = http_req_get_intercept_rule(px, &px->http_req_rules, s, &deny_status);
Willy Tarreau51425942010-02-01 10:40:19 +0100[diff] [blame]3423
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3424 switch (verdict) {
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3425 case HTTP_RULE_RES_YIELD: /* some data miss, call the function later. */
3426 goto return_prx_yield;
3427
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3428 case HTTP_RULE_RES_CONT:
3429 case HTTP_RULE_RES_STOP: /* nothing to do */
3430 break;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3431
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3432 case HTTP_RULE_RES_DENY: /* deny or tarpit */
3433 if (txn->flags & TX_CLTARPIT)
3434 goto tarpit;
3435 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3436
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3437 case HTTP_RULE_RES_ABRT: /* abort request, response already sent. Eg: auth */
3438 goto return_prx_cond;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3439
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3440 case HTTP_RULE_RES_DONE: /* OK, but terminate request processing (eg: redirect) */
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3441 goto done;
3442
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3443 case HTTP_RULE_RES_BADREQ: /* failed with a bad request */
3444 goto return_bad_req;
3445 }
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3446 }
3447
Olivier Houchardc2aae742017-09-22 18:26:28 +0200[diff] [blame]3448 if (conn && conn->flags & CO_FL_EARLY_DATA) {
3449 struct hdr_ctx ctx;
3450
3451 ctx.idx = 0;
3452 if (!http_find_header2("Early-Data", strlen("Early-Data"),
3453 s->req.buf->p, &txn->hdr_idx, &ctx)) {
3454 if (unlikely(http_header_add_tail2(&txn->req,
3455 &txn->hdr_idx, "Early-Data: 1",
3456 strlen("Early-Data: 1"))) < 0) {
3457 goto return_bad_req;
3458 }
3459 }
3460
3461 }
3462
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3463 /* OK at this stage, we know that the request was accepted according to
3464 * the http-request rules, we can check for the stats. Note that the
3465 * URI is detected *before* the req* rules in order not to be affected
3466 * by a possible reqrep, while they are processed *after* so that a
3467 * reqdeny can still block them. This clearly needs to change in 1.6!
3468 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]3469 if (stats_check_uri(&s->si[1], txn, px)) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3470 s->target = &http_stats_applet.obj_type;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]3471 if (unlikely(!stream_int_register_handler(&s->si[1], objt_applet(s->target)))) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3472 txn->status = 500;
3473 s->logs.tv_request = now;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3474 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3475
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3476 if (!(s->flags & SF_ERR_MASK))
3477 s->flags |= SF_ERR_RESOURCE;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3478 goto return_prx_cond;
3479 }
3480
3481 /* parse the whole stats request and extract the relevant information */
3482 http_handle_stats(s, req);
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3483 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]3484 /* not all actions implemented: deny, allow, auth */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3485
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3486 if (verdict == HTTP_RULE_RES_DENY) /* stats http-request deny */
3487 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3488
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3489 if (verdict == HTTP_RULE_RES_ABRT) /* stats auth / stats http-request auth */
3490 goto return_prx_cond;
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +0100[diff] [blame]3491 }
3492
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3493 /* evaluate the req* rules except reqadd */
3494 if (px->req_exp != NULL) {
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]3495 if (apply_filters_to_request(s, req, px) < 0)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3496 goto return_bad_req;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3497
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3498 if (txn->flags & TX_CLDENY)
3499 goto deny;
Willy Tarreauc465fd72009-08-31 00:17:18 +0200[diff] [blame]3500
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3501 if (txn->flags & TX_CLTARPIT) {
3502 deny_status = HTTP_ERR_500;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3503 goto tarpit;
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3504 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3505 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3506
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3507 /* add request headers from the rule sets in the same order */
3508 list_for_each_entry(wl, &px->req_add, list) {
3509 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3510 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]3511 ret = acl_pass(ret);
3512 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
3513 ret = !ret;
3514 if (!ret)
3515 continue;
3516 }
3517
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]3518 if (unlikely(http_header_add_tail(&txn->req, &txn->hdr_idx, wl->s) < 0))
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3519 goto return_bad_req;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]3520 }
3521
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3522
3523 /* Proceed with the stats now. */
William Lallemand71bd11a2017-11-20 19:13:14 +0100[diff] [blame]3524 if (unlikely(objt_applet(s->target) == &http_stats_applet) ||
3525 unlikely(objt_applet(s->target) == &http_cache_applet)) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3526 /* process the stats request now */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3527 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]3528 HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3529
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3530 if (!(s->flags & SF_ERR_MASK)) // this is not really an error but it is
3531 s->flags |= SF_ERR_LOCAL; // to mark that it comes from the proxy
3532 if (!(s->flags & SF_FINST_MASK))
3533 s->flags |= SF_FINST_R;
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3534
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]3535 /* 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]3536 req->analysers &= (AN_REQ_HTTP_BODY | AN_REQ_FLT_HTTP_HDRS | AN_REQ_FLT_END);
3537 req->analysers &= ~AN_REQ_FLT_XFER_DATA;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]3538 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3539 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3540 }
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]3541
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3542 /* check whether we have some ACLs set to redirect this request */
3543 list_for_each_entry(rule, &px->redirect_rules, list) {
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]3544 if (rule->cond) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3545 int ret;
3546
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3547 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]3548 ret = acl_pass(ret);
3549 if (rule->cond->pol == ACL_COND_UNLESS)
3550 ret = !ret;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3551 if (!ret)
3552 continue;
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]3553 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3554 if (!http_apply_redirect_rule(rule, s, txn))
3555 goto return_bad_req;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3556 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3557 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]3558
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]3559 /* POST requests may be accompanied with an "Expect: 100-Continue" header.
3560 * If this happens, then the data will not come immediately, so we must
3561 * send all what we have without waiting. Note that due to the small gain
3562 * 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]3563 * 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]3564 * itself once used.
3565 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]3566 req->flags |= CF_SEND_DONTWAIT;
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]3567
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3568 done: /* done with this analyser, continue with next ones that the calling
3569 * points will have set, if any.
3570 */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3571 req->analyse_exp = TICK_ETERNITY;
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]3572 done_without_exp: /* done with this analyser, but dont reset the analyse_exp. */
3573 req->analysers &= ~an_bit;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3574 return 1;
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]3575
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3576 tarpit:
Willy Tarreau6a0bca92017-06-11 17:56:27 +0200[diff] [blame]3577 /* Allow cookie logging
3578 */
3579 if (s->be->cookie_name || sess->fe->capture_name)
3580 manage_client_side_cookies(s, req);
3581
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3582 /* When a connection is tarpitted, we use the tarpit timeout,
3583 * which may be the same as the connect timeout if unspecified.
3584 * If unset, then set it to zero because we really want it to
3585 * eventually expire. We build the tarpit as an analyser.
3586 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]3587 channel_erase(&s->req);
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3588
3589 /* wipe the request out so that we can drop the connection early
3590 * if the client closes first.
3591 */
3592 channel_dont_connect(req);
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3593
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3594 txn->status = http_err_codes[deny_status];
3595
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3596 req->analysers &= AN_REQ_FLT_END; /* remove switching rules etc... */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3597 req->analysers |= AN_REQ_HTTP_TARPIT;
3598 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.tarpit);
3599 if (!req->analyse_exp)
3600 req->analyse_exp = tick_add(now_ms, 0);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3601 stream_inc_http_err_ctr(s);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3602 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3603 if (sess->fe != s->be)
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3604 HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3605 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3606 HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1);
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]3607 goto done_without_exp;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3608
3609 deny: /* this request was blocked (denied) */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3610
3611 /* Allow cookie logging
3612 */
3613 if (s->be->cookie_name || sess->fe->capture_name)
3614 manage_client_side_cookies(s, req);
3615
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3616 txn->flags |= TX_CLDENY;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3617 txn->status = http_err_codes[deny_status];
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3618 s->logs.tv_request = now;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3619 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3620 stream_inc_http_err_ctr(s);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3621 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3622 if (sess->fe != s->be)
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3623 HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3624 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3625 HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1);
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3626 goto return_prx_cond;
3627
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3628 return_bad_req:
3629 /* We centralize bad requests processing here */
3630 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
3631 /* we detected a parsing error. We want to archive this request
3632 * in the dedicated proxy area for later troubleshooting.
3633 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]3634 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]3635 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]3636
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3637 txn->req.err_state = txn->req.msg_state;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3638 txn->req.msg_state = HTTP_MSG_ERROR;
3639 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3640 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]3641
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3642 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3643 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3644 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreau6e4261e2007-09-18 18:36:05 +0200[diff] [blame]3645
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3646 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3647 if (!(s->flags & SF_ERR_MASK))
3648 s->flags |= SF_ERR_PRXCOND;
3649 if (!(s->flags & SF_FINST_MASK))
3650 s->flags |= SF_FINST_R;
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100[diff] [blame]3651
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3652 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3653 req->analyse_exp = TICK_ETERNITY;
3654 return 0;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3655
3656 return_prx_yield:
3657 channel_dont_connect(req);
3658 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3659}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3660
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3661/* This function performs all the processing enabled for the current request.
3662 * It returns 1 if the processing can continue on next analysers, or zero if it
3663 * needs more data, encounters an error, or wants to immediately abort the
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]3664 * request. It relies on buffers flags, and updates s->req.analysers.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3665 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3666int http_process_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3667{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3668 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3669 struct http_txn *txn = s->txn;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3670 struct http_msg *msg = &txn->req;
Willy Tarreauee335e62015-04-21 18:15:13 +0200[diff] [blame]3671 struct connection *cli_conn = objt_conn(strm_sess(s)->origin);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3672
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]3673 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3674 /* we need more data */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]3675 channel_dont_connect(req);
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3676 return 0;
3677 }
3678
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3679 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]3680 now_ms, __FUNCTION__,
3681 s,
3682 req,
3683 req->rex, req->wex,
3684 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3685 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3686 req->analysers);
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3687
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3688 /*
3689 * Right now, we know that we have processed the entire headers
3690 * and that unwanted requests have been filtered out. We can do
3691 * whatever we want with the remaining request. Also, now we
3692 * may have separate values for ->fe, ->be.
3693 */
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3694
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3695 /*
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3696 * If HTTP PROXY is set we simply get remote server address parsing
3697 * incoming request. Note that this requires that a connection is
3698 * allocated on the server side.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3699 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3700 if ((s->be->options & PR_O_HTTP_PROXY) && !(s->flags & SF_ADDR_SET)) {
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3701 struct connection *conn;
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3702 char *path;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3703
Willy Tarreau9471b8c2013-12-15 13:31:35 +0100[diff] [blame]3704 /* Note that for now we don't reuse existing proxy connections */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]3705 if (unlikely((conn = cs_conn(si_alloc_cs(&s->si[1], NULL))) == NULL)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3706 txn->req.err_state = txn->req.msg_state;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3707 txn->req.msg_state = HTTP_MSG_ERROR;
3708 txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3709 req->analysers &= AN_REQ_FLT_END;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3710 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3711
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3712 if (!(s->flags & SF_ERR_MASK))
3713 s->flags |= SF_ERR_RESOURCE;
3714 if (!(s->flags & SF_FINST_MASK))
3715 s->flags |= SF_FINST_R;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3716
3717 return 0;
3718 }
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3719
3720 path = http_get_path(txn);
3721 url2sa(req->buf->p + msg->sl.rq.u,
3722 path ? path - (req->buf->p + msg->sl.rq.u) : msg->sl.rq.u_l,
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]3723 &conn->addr.to, NULL);
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3724 /* if the path was found, we have to remove everything between
3725 * req->buf->p + msg->sl.rq.u and path (excluded). If it was not
3726 * found, we need to replace from req->buf->p + msg->sl.rq.u for
3727 * u_l characters by a single "/".
3728 */
3729 if (path) {
3730 char *cur_ptr = req->buf->p;
3731 char *cur_end = cur_ptr + txn->req.sl.rq.l;
3732 int delta;
3733
3734 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u, path, NULL, 0);
3735 http_msg_move_end(&txn->req, delta);
3736 cur_end += delta;
3737 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
3738 goto return_bad_req;
3739 }
3740 else {
3741 char *cur_ptr = req->buf->p;
3742 char *cur_end = cur_ptr + txn->req.sl.rq.l;
3743 int delta;
3744
3745 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u,
3746 req->buf->p + msg->sl.rq.u + msg->sl.rq.u_l, "/", 1);
3747 http_msg_move_end(&txn->req, delta);
3748 cur_end += delta;
3749 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
3750 goto return_bad_req;
3751 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3752 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3753
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3754 /*
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]3755 * 7: Now we can work with the cookies.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3756 * Note that doing so might move headers in the request, but
3757 * the fields will stay coherent and the URI will not move.
3758 * This should only be performed in the backend.
3759 */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3760 if (s->be->cookie_name || sess->fe->capture_name)
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3761 manage_client_side_cookies(s, req);
Willy Tarreau7ac51f62007-03-25 16:00:04 +0200[diff] [blame]3762
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3763 /* add unique-id if "header-unique-id" is specified */
3764
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]3765 if (!LIST_ISEMPTY(&sess->fe->format_unique_id) && !s->unique_id) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]3766 if ((s->unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]3767 goto return_bad_req;
3768 s->unique_id[0] = '\0';
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3769 build_logline(s, s->unique_id, UNIQUEID_LEN, &sess->fe->format_unique_id);
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]3770 }
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3771
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3772 if (sess->fe->header_unique_id && s->unique_id) {
3773 chunk_printf(&trash, "%s: %s", sess->fe->header_unique_id, s->unique_id);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3774 if (trash.len < 0)
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3775 goto return_bad_req;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3776 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]3777 goto return_bad_req;
3778 }
3779
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]3780 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3781 * 9: add X-Forwarded-For if either the frontend or the backend
3782 * asks for it.
3783 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3784 if ((sess->fe->options | s->be->options) & PR_O_FWDFOR) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]3785 struct hdr_ctx ctx = { .idx = 0 };
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3786 if (!((sess->fe->options | s->be->options) & PR_O_FF_ALWAYS) &&
3787 http_find_header2(s->be->fwdfor_hdr_len ? s->be->fwdfor_hdr_name : sess->fe->fwdfor_hdr_name,
3788 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]3789 req->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]3790 /* The header is set to be added only if none is present
3791 * and we found it, so don't do anything.
3792 */
3793 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3794 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3795 /* Add an X-Forwarded-For header unless the source IP is
3796 * in the 'except' network range.
3797 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3798 if ((!sess->fe->except_mask.s_addr ||
3799 (((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr.s_addr & sess->fe->except_mask.s_addr)
3800 != sess->fe->except_net.s_addr) &&
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3801 (!s->be->except_mask.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3802 (((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]3803 != s->be->except_net.s_addr)) {
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]3804 int len;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3805 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3806 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr;
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]3807
3808 /* Note: we rely on the backend to get the header name to be used for
3809 * x-forwarded-for, because the header is really meant for the backends.
3810 * However, if the backend did not specify any option, we have to rely
3811 * on the frontend's header name.
3812 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3813 if (s->be->fwdfor_hdr_len) {
3814 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3815 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]3816 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3817 len = sess->fe->fwdfor_hdr_len;
3818 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]3819 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]3820 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]3821
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3822 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]3823 goto return_bad_req;
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]3824 }
3825 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3826 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET6) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3827 /* FIXME: for the sake of completeness, we should also support
3828 * 'except' here, although it is mostly useless in this case.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3829 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3830 int len;
3831 char pn[INET6_ADDRSTRLEN];
3832 inet_ntop(AF_INET6,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3833 (const void *)&((struct sockaddr_in6 *)(&cli_conn->addr.from))->sin6_addr,
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3834 pn, sizeof(pn));
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3835
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3836 /* Note: we rely on the backend to get the header name to be used for
3837 * x-forwarded-for, because the header is really meant for the backends.
3838 * However, if the backend did not specify any option, we have to rely
3839 * on the frontend's header name.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3840 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3841 if (s->be->fwdfor_hdr_len) {
3842 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3843 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3844 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3845 len = sess->fe->fwdfor_hdr_len;
3846 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3847 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]3848 len += snprintf(trash.str + len, trash.size - len, ": %s", pn);
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3849
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3850 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]3851 goto return_bad_req;
3852 }
3853 }
3854
3855 /*
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3856 * 10: add X-Original-To if either the frontend or the backend
3857 * asks for it.
3858 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3859 if ((sess->fe->options | s->be->options) & PR_O_ORGTO) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3860
3861 /* FIXME: don't know if IPv6 can handle that case too. */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3862 if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3863 /* Add an X-Original-To header unless the destination IP is
3864 * in the 'except' network range.
3865 */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3866 conn_get_to_addr(cli_conn);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3867
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3868 if (cli_conn->addr.to.ss_family == AF_INET &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3869 ((!sess->fe->except_mask_to.s_addr ||
3870 (((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr.s_addr & sess->fe->except_mask_to.s_addr)
3871 != sess->fe->except_to.s_addr) &&
Emeric Brun5bd86a82010-10-22 17:23:04 +0200[diff] [blame]3872 (!s->be->except_mask_to.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3873 (((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]3874 != s->be->except_to.s_addr))) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3875 int len;
3876 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3877 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr;
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3878
3879 /* Note: we rely on the backend to get the header name to be used for
3880 * x-original-to, because the header is really meant for the backends.
3881 * However, if the backend did not specify any option, we have to rely
3882 * on the frontend's header name.
3883 */
3884 if (s->be->orgto_hdr_len) {
3885 len = s->be->orgto_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3886 memcpy(trash.str, s->be->orgto_hdr_name, len);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3887 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3888 len = sess->fe->orgto_hdr_len;
3889 memcpy(trash.str, sess->fe->orgto_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]3890 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]3891 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]3892
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3893 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]3894 goto return_bad_req;
3895 }
3896 }
3897 }
3898
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]3899 /* 11: add "Connection: close" or "Connection: keep-alive" if needed and not yet set.
3900 * If an "Upgrade" token is found, the header is left untouched in order not to have
3901 * to deal with some servers bugs : some of them fail an Upgrade if anything but
3902 * "Upgrade" is present in the Connection header.
3903 */
3904 if (!(txn->flags & TX_HDR_CONN_UPG) &&
3905 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3906 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3907 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3908 unsigned int want_flags = 0;
3909
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3910 if (msg->flags & HTTP_MSGF_VER_11) {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]3911 if (((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3912 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3913 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3914 !((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3915 want_flags |= TX_CON_CLO_SET;
3916 } else {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]3917 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3918 ((sess->fe->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL &&
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3919 (s->be->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL)) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3920 ((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3921 want_flags |= TX_CON_KAL_SET;
3922 }
3923
3924 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]3925 http_change_connection_header(txn, msg, want_flags);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3926 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3927
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3928
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3929 /* If we have no server assigned yet and we're balancing on url_param
3930 * with a POST request, we may be interested in checking the body for
3931 * that parameter. This will be done in another analyser.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3932 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3933 if (!(s->flags & (SF_ASSIGNED|SF_DIRECT)) &&
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3934 s->txn->meth == HTTP_METH_POST && s->be->url_param_name != NULL &&
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3935 (msg->flags & (HTTP_MSGF_CNT_LEN|HTTP_MSGF_TE_CHNK))) {
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]3936 channel_dont_connect(req);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3937 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3938 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]3939
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3940 req->analysers &= ~AN_REQ_FLT_XFER_DATA;
3941 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]3942#ifdef TCP_QUICKACK
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3943 /* We expect some data from the client. Unless we know for sure
3944 * we already have a full request, we have to re-enable quick-ack
3945 * in case we previously disabled it, otherwise we might cause
3946 * the client to delay further data.
3947 */
3948 if ((sess->listener->options & LI_O_NOQUICKACK) &&
3949 cli_conn && conn_ctrl_ready(cli_conn) &&
3950 ((msg->flags & HTTP_MSGF_TE_CHNK) ||
3951 (msg->body_len > req->buf->i - txn->req.eoh - 2)))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]3952 setsockopt(cli_conn->handle.fd, IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one));
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]3953#endif
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]3954
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3955 /*************************************************************
3956 * OK, that's finished for the headers. We have done what we *
3957 * could. Let's switch to the DATA state. *
3958 ************************************************************/
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3959 req->analyse_exp = TICK_ETERNITY;
3960 req->analysers &= ~an_bit;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]3961
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3962 s->logs.tv_request = now;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3963 /* OK let's go on with the BODY now */
3964 return 1;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3965
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3966 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]3967 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
Willy Tarreauf073a832009-03-01 23:21:47 +0100[diff] [blame]3968 /* we detected a parsing error. We want to archive this request
3969 * in the dedicated proxy area for later troubleshooting.
3970 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]3971 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]3972 }
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]3973
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3974 txn->req.err_state = txn->req.msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3975 txn->req.msg_state = HTTP_MSG_ERROR;
3976 txn->status = 400;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3977 req->analysers &= AN_REQ_FLT_END;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3978 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]3979
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3980 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3981 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3982 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3983
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3984 if (!(s->flags & SF_ERR_MASK))
3985 s->flags |= SF_ERR_PRXCOND;
3986 if (!(s->flags & SF_FINST_MASK))
3987 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]3988 return 0;
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]3989}
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3990
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3991/* This function is an analyser which processes the HTTP tarpit. It always
3992 * returns zero, at the beginning because it prevents any other processing
3993 * from occurring, and at the end because it terminates the request.
3994 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3995int http_process_tarpit(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3996{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3997 struct http_txn *txn = s->txn;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3998
3999 /* This connection is being tarpitted. The CLIENT side has
4000 * already set the connect expiration date to the right
4001 * timeout. We just have to check that the client is still
4002 * there and that the timeout has not expired.
4003 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4004 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4005 if ((req->flags & (CF_SHUTR|CF_READ_ERROR)) == 0 &&
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4006 !tick_is_expired(req->analyse_exp, now_ms))
4007 return 0;
4008
4009 /* We will set the queue timer to the time spent, just for
4010 * logging purposes. We fake a 500 server error, so that the
4011 * attacker will not suspect his connection has been tarpitted.
4012 * It will not cause trouble to the logs because we can exclude
4013 * the tarpitted connections by filtering on the 'PT' status flags.
4014 */
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4015 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
4016
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4017 if (!(req->flags & CF_READ_ERROR))
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4018 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4019
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4020 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4021 req->analyse_exp = TICK_ETERNITY;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]4022
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4023 if (!(s->flags & SF_ERR_MASK))
4024 s->flags |= SF_ERR_PRXCOND;
4025 if (!(s->flags & SF_FINST_MASK))
4026 s->flags |= SF_FINST_T;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4027 return 0;
4028}
4029
Willy Tarreau5a8f9472014-04-10 11:16:06 +0200[diff] [blame]4030/* This function is an analyser which waits for the HTTP request body. It waits
4031 * for either the buffer to be full, or the full advertised contents to have
4032 * reached the buffer. It must only be called after the standard HTTP request
4033 * processing has occurred, because it expects the request to be parsed and will
4034 * look for the Expect header. It may send a 100-Continue interim response. It
4035 * takes in input any state starting from HTTP_MSG_BODY and leaves with one of
4036 * HTTP_MSG_CHK_SIZE, HTTP_MSG_DATA or HTTP_MSG_TRAILERS. It returns zero if it
4037 * needs to read more data, or 1 once it has completed its analysis.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4038 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4039int http_wait_for_request_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4040{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4041 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4042 struct http_txn *txn = s->txn;
4043 struct http_msg *msg = &s->txn->req;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4044
4045 /* We have to parse the HTTP request body to find any required data.
4046 * "balance url_param check_post" should have been the only way to get
4047 * into this. We were brought here after HTTP header analysis, so all
4048 * related structures are ready.
4049 */
4050
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4051 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE) {
4052 /* This is the first call */
4053 if (msg->msg_state < HTTP_MSG_BODY)
4054 goto missing_data;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4055
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4056 if (msg->msg_state < HTTP_MSG_100_SENT) {
4057 /* If we have HTTP/1.1 and Expect: 100-continue, then we must
4058 * send an HTTP/1.1 100 Continue intermediate response.
4059 */
4060 if (msg->flags & HTTP_MSGF_VER_11) {
4061 struct hdr_ctx ctx;
4062 ctx.idx = 0;
4063 /* Expect is allowed in 1.1, look for it */
4064 if (http_find_header2("Expect", 6, req->buf->p, &txn->hdr_idx, &ctx) &&
4065 unlikely(ctx.vlen == 12 && strncasecmp(ctx.line+ctx.val, "100-continue", 12) == 0)) {
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]4066 co_inject(&s->res, http_100_chunk.str, http_100_chunk.len);
Thierry FOURNIER / OZON.IO43ad11d2016-12-12 15:19:58 +0100[diff] [blame]4067 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4068 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4069 }
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4070 msg->msg_state = HTTP_MSG_100_SENT;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4071 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4072
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]4073 /* we have msg->sov which points to the first byte of message body.
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4074 * req->buf->p still points to the beginning of the message. We
4075 * must save the body in msg->next because it survives buffer
4076 * re-alignments.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4077 */
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]4078 msg->next = msg->sov;
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4079
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4080 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4081 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
4082 else
4083 msg->msg_state = HTTP_MSG_DATA;
4084 }
4085
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4086 if (!(msg->flags & HTTP_MSGF_TE_CHNK)) {
4087 /* We're in content-length mode, we just have to wait for enough data. */
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4088 if (http_body_bytes(msg) < msg->body_len)
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4089 goto missing_data;
4090
4091 /* OK we have everything we need now */
4092 goto http_end;
4093 }
4094
4095 /* OK here we're parsing a chunked-encoded message */
4096
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4097 if (msg->msg_state == HTTP_MSG_CHUNK_SIZE) {
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]4098 /* read the chunk size and assign it to ->chunk_len, then
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4099 * set ->sov and ->next to point to the body and switch to DATA or
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4100 * TRAILERS state.
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4101 */
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]4102 unsigned int chunk;
4103 int ret = h1_parse_chunk_size(req->buf, msg->next, req->buf->i, &chunk);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4104
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4105 if (!ret)
4106 goto missing_data;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4107 else if (ret < 0) {
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]4108 msg->err_pos = req->buf->i + ret;
4109 if (msg->err_pos < 0)
4110 msg->err_pos += req->buf->size;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4111 stream_inc_http_err_ctr(s);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4112 goto return_bad_req;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4113 }
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]4114
4115 msg->chunk_len = chunk;
4116 msg->body_len += chunk;
4117
4118 msg->sol = ret;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]4119 msg->next += ret;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4120 msg->msg_state = msg->chunk_len ? HTTP_MSG_DATA : HTTP_MSG_TRAILERS;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4121 }
4122
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4123 /* Now we're in HTTP_MSG_DATA or HTTP_MSG_TRAILERS state.
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4124 * We have the first data byte is in msg->sov + msg->sol. We're waiting
4125 * for at least a whole chunk or the whole content length bytes after
4126 * msg->sov + msg->sol.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4127 */
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4128 if (msg->msg_state == HTTP_MSG_TRAILERS)
4129 goto http_end;
4130
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4131 if (http_body_bytes(msg) >= msg->body_len) /* we have enough bytes now */
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4132 goto http_end;
4133
4134 missing_data:
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4135 /* we get here if we need to wait for more data. If the buffer is full,
4136 * we have the maximum we can expect.
4137 */
4138 if (buffer_full(req->buf, global.tune.maxrewrite))
4139 goto http_end;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4140
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4141 if ((req->flags & CF_READ_TIMEOUT) || tick_is_expired(req->analyse_exp, now_ms)) {
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4142 txn->status = 408;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4143 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4144
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4145 if (!(s->flags & SF_ERR_MASK))
4146 s->flags |= SF_ERR_CLITO;
4147 if (!(s->flags & SF_FINST_MASK))
4148 s->flags |= SF_FINST_D;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4149 goto return_err_msg;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4150 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4151
4152 /* we get here if we need to wait for more data */
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4153 if (!(req->flags & (CF_SHUTR | CF_READ_ERROR))) {
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4154 /* Not enough data. We'll re-use the http-request
4155 * timeout here. Ideally, we should set the timeout
4156 * relative to the accept() date. We just set the
4157 * request timeout once at the beginning of the
4158 * request.
4159 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4160 channel_dont_connect(req);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4161 if (!tick_isset(req->analyse_exp))
Willy Tarreaucd7afc02009-07-12 10:03:17 +0200[diff] [blame]4162 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4163 return 0;
4164 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4165
4166 http_end:
4167 /* The situation will not evolve, so let's give up on the analysis. */
4168 s->logs.tv_request = now; /* update the request timer to reflect full request */
4169 req->analysers &= ~an_bit;
4170 req->analyse_exp = TICK_ETERNITY;
4171 return 1;
4172
4173 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4174 txn->req.err_state = txn->req.msg_state;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4175 txn->req.msg_state = HTTP_MSG_ERROR;
4176 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4177 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4178
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4179 if (!(s->flags & SF_ERR_MASK))
4180 s->flags |= SF_ERR_PRXCOND;
4181 if (!(s->flags & SF_FINST_MASK))
4182 s->flags |= SF_FINST_R;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4183
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4184 return_err_msg:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4185 req->analysers &= AN_REQ_FLT_END;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4186 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4187 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]4188 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4189 return 0;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4190}
4191
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4192/* send a server's name with an outgoing request over an established connection.
4193 * Note: this function is designed to be called once the request has been scheduled
4194 * for being forwarded. This is the reason why it rewinds the buffer before
4195 * proceeding.
4196 */
Willy Tarreau45c0d982012-03-09 12:11:57 +0100[diff] [blame]4197int 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]4198
4199 struct hdr_ctx ctx;
4200
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4201 char *hdr_name = be->server_id_hdr_name;
4202 int hdr_name_len = be->server_id_hdr_len;
Willy Tarreau394db372012-10-12 22:40:39 +0200[diff] [blame]4203 struct channel *chn = txn->req.chn;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4204 char *hdr_val;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4205 unsigned int old_o, old_i;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4206
William Lallemandd9e90662012-01-30 17:27:17 +0100[diff] [blame]4207 ctx.idx = 0;
4208
Willy Tarreau211cdec2014-04-17 20:18:08 +0200[diff] [blame]4209 old_o = http_hdr_rewind(&txn->req);
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4210 if (old_o) {
4211 /* The request was already skipped, let's restore it */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4212 b_rew(chn->buf, old_o);
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4213 txn->req.next += old_o;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4214 txn->req.sov += old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4215 }
4216
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4217 old_i = chn->buf->i;
4218 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]4219 /* remove any existing values from the header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]4220 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4221 }
4222
4223 /* Add the new header requested with the server value */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4224 hdr_val = trash.str;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4225 memcpy(hdr_val, hdr_name, hdr_name_len);
4226 hdr_val += hdr_name_len;
4227 *hdr_val++ = ':';
4228 *hdr_val++ = ' ';
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4229 hdr_val += strlcpy2(hdr_val, srv_name, trash.str + trash.size - hdr_val);
4230 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]4231
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4232 if (old_o) {
4233 /* If this was a forwarded request, we must readjust the amount of
4234 * data to be forwarded in order to take into account the size
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4235 * variations. Note that the current state is >= HTTP_MSG_BODY,
4236 * so we don't have to adjust ->sol.
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4237 */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4238 old_o += chn->buf->i - old_i;
4239 b_adv(chn->buf, old_o);
4240 txn->req.next -= old_o;
4241 txn->req.sov -= old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4242 }
4243
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4244 return 0;
4245}
4246
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4247/* Terminate current transaction and prepare a new one. This is very tricky
4248 * right now but it works.
4249 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4250void http_end_txn_clean_session(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4251{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4252 int prev_status = s->txn->status;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]4253 struct proxy *fe = strm_fe(s);
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4254 struct proxy *be = s->be;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4255 struct conn_stream *cs;
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4256 struct connection *srv_conn;
4257 struct server *srv;
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4258 unsigned int prev_flags = s->txn->flags;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4259
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4260 /* FIXME: We need a more portable way of releasing a backend's and a
4261 * server's connections. We need a safer way to reinitialize buffer
4262 * flags. We also need a more accurate method for computing per-request
4263 * data.
4264 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4265 /*
4266 * XXX cognet: This is probably wrong, this is killing a whole
4267 * connection, in the new world order, we probably want to just kill
4268 * the stream, this is to be revisited the day we handle multiple
4269 * streams in one server connection.
4270 */
4271 cs = objt_cs(s->si[1].end);
4272 srv_conn = cs_conn(cs);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4273
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4274 /* unless we're doing keep-alive, we want to quickly close the connection
4275 * to the server.
4276 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4277 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4278 !si_conn_ready(&s->si[1])) {
4279 s->si[1].flags |= SI_FL_NOLINGER | SI_FL_NOHALF;
4280 si_shutr(&s->si[1]);
4281 si_shutw(&s->si[1]);
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4282 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4283
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4284 if (s->flags & SF_BE_ASSIGNED) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4285 HA_ATOMIC_SUB(&be->beconn, 1);
Willy Tarreau2d5cd472012-03-01 23:34:37 +0100[diff] [blame]4286 if (unlikely(s->srv_conn))
4287 sess_change_server(s, NULL);
4288 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4289
4290 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4291 stream_process_counters(s);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4292
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4293 if (s->txn->status) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4294 int n;
4295
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4296 n = s->txn->status / 100;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4297 if (n < 1 || n > 5)
4298 n = 0;
4299
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4300 if (fe->mode == PR_MODE_HTTP) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4301 HA_ATOMIC_ADD(&fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4302 }
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4303 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4304 (be->mode == PR_MODE_HTTP)) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4305 HA_ATOMIC_ADD(&be->be_counters.p.http.rsp[n], 1);
4306 HA_ATOMIC_ADD(&be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4307 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4308 }
4309
4310 /* don't count other requests' data */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4311 s->logs.bytes_in -= s->req.buf->i;
4312 s->logs.bytes_out -= s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4313
4314 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4315 if (!LIST_ISEMPTY(&fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4316 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4317 (!(fe->options & PR_O_NULLNOLOG) || s->req.total)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4318 s->do_log(s);
4319 }
4320
Willy Tarreaud713bcc2014-06-25 15:36:04 +0200[diff] [blame]4321 /* stop tracking content-based counters */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4322 stream_stop_content_counters(s);
4323 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +0200[diff] [blame]4324
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4325 s->logs.accept_date = date; /* user-visible date for logging */
4326 s->logs.tv_accept = now; /* corrected date for internal use */
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200[diff] [blame]4327 s->logs.t_handshake = 0; /* There are no handshake in keep alive connection. */
4328 s->logs.t_idle = -1;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4329 tv_zero(&s->logs.tv_request);
4330 s->logs.t_queue = -1;
4331 s->logs.t_connect = -1;
4332 s->logs.t_data = -1;
4333 s->logs.t_close = 0;
4334 s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */
4335 s->logs.srv_queue_size = 0; /* we will get this number soon */
4336
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4337 s->logs.bytes_in = s->req.total = s->req.buf->i;
4338 s->logs.bytes_out = s->res.total = s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4339
4340 if (s->pend_pos)
4341 pendconn_free(s->pend_pos);
4342
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4343 if (objt_server(s->target)) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4344 if (s->flags & SF_CURR_SESS) {
4345 s->flags &= ~SF_CURR_SESS;
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4346 HA_ATOMIC_SUB(&objt_server(s->target)->cur_sess, 1);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4347 }
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4348 if (may_dequeue_tasks(objt_server(s->target), be))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4349 process_srv_queue(objt_server(s->target));
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4350 }
4351
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4352 s->target = NULL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4353
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4354 /* only release our endpoint if we don't intend to reuse the
4355 * connection.
4356 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4357 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4358 !si_conn_ready(&s->si[1])) {
4359 si_release_endpoint(&s->si[1]);
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4360 srv_conn = NULL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4361 }
4362
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4363 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
4364 s->si[1].err_type = SI_ET_NONE;
4365 s->si[1].conn_retries = 0; /* used for logging too */
4366 s->si[1].exp = TICK_ETERNITY;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4367 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]4368 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]4369 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]4370 s->flags &= ~(SF_DIRECT|SF_ASSIGNED|SF_ADDR_SET|SF_BE_ASSIGNED|SF_FORCE_PRST|SF_IGNORE_PRST);
4371 s->flags &= ~(SF_CURR_SESS|SF_REDIRECTABLE|SF_SRV_REUSED);
4372 s->flags &= ~(SF_ERR_MASK|SF_FINST_MASK|SF_REDISP);
Willy Tarreau543db622012-11-15 16:41:22 +0100[diff] [blame]4373
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4374 s->txn->meth = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4375 http_reset_txn(s);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4376 s->txn->flags |= TX_NOT_FIRST | TX_WAIT_NEXT_RQ;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4377
4378 if (prev_status == 401 || prev_status == 407) {
4379 /* In HTTP keep-alive mode, if we receive a 401, we still have
4380 * a chance of being able to send the visitor again to the same
4381 * server over the same connection. This is required by some
4382 * broken protocols such as NTLM, and anyway whenever there is
4383 * an opportunity for sending the challenge to the proper place,
4384 * it's better to do it (at least it helps with debugging).
4385 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4386 s->txn->flags |= TX_PREFER_LAST;
Willy Tarreaubd99d582015-09-02 10:40:43 +0200[diff] [blame]4387 if (srv_conn)
4388 srv_conn->flags |= CO_FL_PRIVATE;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4389 }
4390
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4391 /* Never ever allow to reuse a connection from a non-reuse backend */
4392 if (srv_conn && (be->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
4393 srv_conn->flags |= CO_FL_PRIVATE;
4394
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4395 if (fe->options2 & PR_O2_INDEPSTR)
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4396 s->si[1].flags |= SI_FL_INDEP_STR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4397
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4398 if (fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4399 s->req.flags |= CF_NEVER_WAIT;
4400 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200[diff] [blame]4401 }
4402
Willy Tarreau714ea782015-11-25 20:11:11 +0100[diff] [blame]4403 /* we're removing the analysers, we MUST re-enable events detection.
4404 * We don't enable close on the response channel since it's either
4405 * already closed, or in keep-alive with an idle connection handler.
4406 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4407 channel_auto_read(&s->req);
4408 channel_auto_close(&s->req);
4409 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4410
Willy Tarreau1c59bd52015-11-02 20:20:11 +0100[diff] [blame]4411 /* we're in keep-alive with an idle connection, monitor it if not already done */
4412 if (srv_conn && LIST_ISEMPTY(&srv_conn->list)) {
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4413 srv = objt_server(srv_conn->target);
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4414 if (!srv)
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4415 si_idle_cs(&s->si[1], NULL);
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4416 else if (srv_conn->flags & CO_FL_PRIVATE)
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4417 si_idle_cs(&s->si[1], (srv->priv_conns ? &srv->priv_conns[tid] : NULL));
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4418 else if (prev_flags & TX_NOT_FIRST)
4419 /* note: we check the request, not the connection, but
4420 * this is valid for strategies SAFE and AGGR, and in
4421 * case of ALWS, we don't care anyway.
4422 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4423 si_idle_cs(&s->si[1], (srv->safe_conns ? &srv->safe_conns[tid] : NULL));
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4424 else
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4425 si_idle_cs(&s->si[1], (srv->idle_conns ? &srv->idle_conns[tid] : NULL));
Willy Tarreau4320eaa2015-08-05 11:08:30 +0200[diff] [blame]4426 }
Christopher Faulete6006242017-03-10 11:52:44 +0100[diff] [blame]4427 s->req.analysers = strm_li(s) ? strm_li(s)->analysers : 0;
4428 s->res.analysers = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4429}
4430
4431
4432/* This function updates the request state machine according to the response
4433 * state machine and buffer flags. It returns 1 if it changes anything (flag
4434 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4435 * it is only used to find when a request/response couple is complete. Both
4436 * this function and its equivalent should loop until both return zero. It
4437 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4438 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4439int http_sync_req_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4440{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4441 struct channel *chn = &s->req;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4442 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4443 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4444 unsigned int old_state = txn->req.msg_state;
4445
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4446 if (unlikely(txn->req.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4447 return 0;
4448
4449 if (txn->req.msg_state == HTTP_MSG_DONE) {
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4450 /* No need to read anymore, the request was completely parsed.
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4451 * We can shut the read side unless we want to abort_on_close,
4452 * or we have a POST request. The issue with POST requests is
4453 * that some browsers still send a CRLF after the request, and
4454 * this CRLF must be read so that it does not remain in the kernel
4455 * buffers, otherwise a close could cause an RST on some systems
4456 * (eg: Linux).
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4457 * Note that if we're using keep-alive on the client side, we'd
4458 * rather poll now and keep the polling enabled for the whole
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4459 * stream's life than enabling/disabling it between each
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4460 * response and next request.
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4461 */
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4462 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4463 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]4464 (!(s->be->options & PR_O_ABRT_CLOSE) ||
4465 (s->si[0].flags & SI_FL_CLEAN_ABRT)) &&
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4466 txn->meth != HTTP_METH_POST)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4467 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4468
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4469 /* if the server closes the connection, we want to immediately react
4470 * and close the socket to save packets and syscalls.
4471 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4472 s->si[1].flags |= SI_FL_NOHALF;
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4473
Willy Tarreau7f876a12015-11-18 11:59:55 +0100[diff] [blame]4474 /* In any case we've finished parsing the request so we must
4475 * disable Nagle when sending data because 1) we're not going
4476 * to shut this side, and 2) the server is waiting for us to
4477 * send pending data.
4478 */
4479 chn->flags |= CF_NEVER_WAIT;
4480
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4481 if (txn->rsp.msg_state == HTTP_MSG_ERROR)
4482 goto wait_other_side;
4483
4484 if (txn->rsp.msg_state < HTTP_MSG_DONE) {
4485 /* The server has not finished to respond, so we
4486 * don't want to move in order not to upset it.
4487 */
4488 goto wait_other_side;
4489 }
4490
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4491 /* When we get here, it means that both the request and the
4492 * response have finished receiving. Depending on the connection
4493 * mode, we'll have to wait for the last bytes to leave in either
4494 * direction, and sometimes for a close to be effective.
4495 */
4496
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4497 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4498 /* Server-close mode : queue a connection close to the server */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4499 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW)))
4500 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4501 }
4502 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4503 /* Option forceclose is set, or either side wants to close,
4504 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4505 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4506 * once both states are CLOSED.
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4507 *
4508 * However, there is an exception if the response
4509 * length is undefined. In this case, we need to wait
4510 * the close from the server. The response will be
4511 * switched in TUNNEL mode until the end.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4512 */
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4513 if (!(txn->rsp.flags & HTTP_MSGF_XFER_LEN) &&
4514 txn->rsp.msg_state != HTTP_MSG_CLOSED)
4515 goto check_channel_flags;
4516
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4517 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
4518 channel_shutr_now(chn);
4519 channel_shutw_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4520 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4521 }
4522 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4523 /* The last possible modes are keep-alive and tunnel. Tunnel mode
4524 * will not have any analyser so it needs to poll for reads.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4525 */
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4526 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN) {
4527 channel_auto_read(chn);
4528 txn->req.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4529 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4530 }
4531
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4532 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4533 }
4534
4535 if (txn->req.msg_state == HTTP_MSG_CLOSING) {
4536 http_msg_closing:
4537 /* nothing else to forward, just waiting for the output buffer
4538 * to be empty and for the shutw_now to take effect.
4539 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4540 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4541 txn->req.msg_state = HTTP_MSG_CLOSED;
4542 goto http_msg_closed;
4543 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4544 else if (chn->flags & CF_SHUTW) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4545 txn->req.err_state = txn->req.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4546 txn->req.msg_state = HTTP_MSG_ERROR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4547 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4548 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4549 }
4550
4551 if (txn->req.msg_state == HTTP_MSG_CLOSED) {
4552 http_msg_closed:
Willy Tarreau80593512017-12-14 10:43:31 +0100[diff] [blame]4553 /* if we don't know whether the server will close, we need to hard close */
4554 if (txn->rsp.flags & HTTP_MSGF_XFER_LEN)
4555 s->si[1].flags |= SI_FL_NOLINGER; /* we want to close ASAP */
4556
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4557 /* see above in MSG_DONE why we only do this in these states */
4558 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4559 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]4560 (!(s->be->options & PR_O_ABRT_CLOSE) ||
4561 (s->si[0].flags & SI_FL_CLEAN_ABRT)))
Willy Tarreau2e7a1652013-12-15 15:32:10 +0100[diff] [blame]4562 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4563 goto wait_other_side;
4564 }
4565
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4566 check_channel_flags:
4567 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4568 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4569 /* if we've just closed an output, let's switch */
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4570 txn->req.msg_state = HTTP_MSG_CLOSING;
4571 goto http_msg_closing;
4572 }
4573
4574
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4575 wait_other_side:
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4576 return txn->req.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4577}
4578
4579
4580/* This function updates the response state machine according to the request
4581 * state machine and buffer flags. It returns 1 if it changes anything (flag
4582 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4583 * it is only used to find when a request/response couple is complete. Both
4584 * this function and its equivalent should loop until both return zero. It
4585 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4586 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4587int http_sync_res_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4588{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4589 struct channel *chn = &s->res;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4590 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4591 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4592 unsigned int old_state = txn->rsp.msg_state;
4593
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4594 if (unlikely(txn->rsp.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4595 return 0;
4596
4597 if (txn->rsp.msg_state == HTTP_MSG_DONE) {
4598 /* In theory, we don't need to read anymore, but we must
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4599 * still monitor the server connection for a possible close
4600 * while the request is being uploaded, so we don't disable
4601 * reading.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4602 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4603 /* channel_dont_read(chn); */
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4604
4605 if (txn->req.msg_state == HTTP_MSG_ERROR)
4606 goto wait_other_side;
4607
4608 if (txn->req.msg_state < HTTP_MSG_DONE) {
4609 /* The client seems to still be sending data, probably
4610 * because we got an error response during an upload.
4611 * We have the choice of either breaking the connection
4612 * or letting it pass through. Let's do the later.
4613 */
4614 goto wait_other_side;
4615 }
4616
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4617 /* When we get here, it means that both the request and the
4618 * response have finished receiving. Depending on the connection
4619 * mode, we'll have to wait for the last bytes to leave in either
4620 * direction, and sometimes for a close to be effective.
4621 */
4622
4623 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4624 /* Server-close mode : shut read and wait for the request
4625 * side to close its output buffer. The caller will detect
4626 * when we're in DONE and the other is in CLOSED and will
4627 * catch that for the final cleanup.
4628 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4629 if (!(chn->flags & (CF_SHUTR|CF_SHUTR_NOW)))
4630 channel_shutr_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4631 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4632 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4633 /* Option forceclose is set, or either side wants to close,
4634 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4635 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4636 * once both states are CLOSED.
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4637 *
4638 * However, there is an exception if the response length
4639 * is undefined. In this case, we switch in TUNNEL mode.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4640 */
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4641 if (!(txn->rsp.flags & HTTP_MSGF_XFER_LEN)) {
4642 channel_auto_read(chn);
4643 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
4644 chn->flags |= CF_NEVER_WAIT;
4645 }
4646 else if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4647 channel_shutr_now(chn);
4648 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4649 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4650 }
4651 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4652 /* The last possible modes are keep-alive and tunnel. Tunnel will
4653 * need to forward remaining data. Keep-alive will need to monitor
4654 * for connection closing.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4655 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4656 channel_auto_read(chn);
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4657 chn->flags |= CF_NEVER_WAIT;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4658 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN)
4659 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4660 }
4661
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4662 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4663 }
4664
4665 if (txn->rsp.msg_state == HTTP_MSG_CLOSING) {
4666 http_msg_closing:
4667 /* nothing else to forward, just waiting for the output buffer
4668 * to be empty and for the shutw_now to take effect.
4669 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4670 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4671 txn->rsp.msg_state = HTTP_MSG_CLOSED;
4672 goto http_msg_closed;
4673 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4674 else if (chn->flags & CF_SHUTW) {
Christopher Fauleta3992e02017-07-18 10:35:55 +0200[diff] [blame]4675 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4676 txn->rsp.msg_state = HTTP_MSG_ERROR;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4677 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4678 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4679 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4680 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4681 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4682 }
4683
4684 if (txn->rsp.msg_state == HTTP_MSG_CLOSED) {
4685 http_msg_closed:
4686 /* drop any pending data */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]4687 channel_truncate(chn);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4688 channel_auto_close(chn);
4689 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4690 goto wait_other_side;
4691 }
4692
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4693 check_channel_flags:
4694 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4695 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4696 /* if we've just closed an output, let's switch */
4697 txn->rsp.msg_state = HTTP_MSG_CLOSING;
4698 goto http_msg_closing;
4699 }
4700
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4701 wait_other_side:
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4702 /* We force the response to leave immediately if we're waiting for the
4703 * other side, since there is no pending shutdown to push it out.
4704 */
4705 if (!channel_is_empty(chn))
4706 chn->flags |= CF_SEND_DONTWAIT;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4707 return txn->rsp.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4708}
4709
4710
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4711/* Resync the request and response state machines. */
4712void http_resync_states(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4713{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4714 struct http_txn *txn = s->txn;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4715#ifdef DEBUG_FULL
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4716 int old_req_state = txn->req.msg_state;
4717 int old_res_state = txn->rsp.msg_state;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4718#endif
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4719
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4720 http_sync_req_state(s);
4721 while (1) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4722 if (!http_sync_res_state(s))
4723 break;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4724 if (!http_sync_req_state(s))
4725 break;
4726 }
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]4727
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4728 DPRINTF(stderr,"[%u] %s: stream=%p old=%s,%s cur=%s,%s "
4729 "req->analysers=0x%08x res->analysers=0x%08x\n",
4730 now_ms, __FUNCTION__, s,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]4731 h1_msg_state_str(old_req_state), h1_msg_state_str(old_res_state),
4732 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]4733 s->req.analysers, s->res.analysers);
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4734
4735
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4736 /* OK, both state machines agree on a compatible state.
4737 * There are a few cases we're interested in :
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4738 * - HTTP_MSG_CLOSED on both sides means we've reached the end in both
4739 * directions, so let's simply disable both analysers.
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4740 * - HTTP_MSG_CLOSED on the response only or HTTP_MSG_ERROR on either
4741 * means we must abort the request.
4742 * - HTTP_MSG_TUNNEL on either means we have to disable analyser on
4743 * corresponding channel.
4744 * - HTTP_MSG_DONE or HTTP_MSG_CLOSED on the request and HTTP_MSG_DONE
4745 * on the response with server-close mode means we've completed one
4746 * request and we must re-initialize the server connection.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4747 */
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4748 if (txn->req.msg_state == HTTP_MSG_CLOSED &&
4749 txn->rsp.msg_state == HTTP_MSG_CLOSED) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4750 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4751 channel_auto_close(&s->req);
4752 channel_auto_read(&s->req);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4753 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4754 channel_auto_close(&s->res);
4755 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4756 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4757 else if (txn->rsp.msg_state == HTTP_MSG_CLOSED ||
4758 txn->rsp.msg_state == HTTP_MSG_ERROR ||
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4759 txn->req.msg_state == HTTP_MSG_ERROR) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4760 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4761 channel_auto_close(&s->res);
4762 channel_auto_read(&s->res);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4763 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4764 channel_abort(&s->req);
4765 channel_auto_close(&s->req);
4766 channel_auto_read(&s->req);
4767 channel_truncate(&s->req);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4768 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4769 else if (txn->req.msg_state == HTTP_MSG_TUNNEL ||
4770 txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4771 if (txn->req.msg_state == HTTP_MSG_TUNNEL) {
4772 s->req.analysers &= AN_REQ_FLT_END;
4773 if (HAS_REQ_DATA_FILTERS(s))
4774 s->req.analysers |= AN_REQ_FLT_XFER_DATA;
4775 }
4776 if (txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4777 s->res.analysers &= AN_RES_FLT_END;
4778 if (HAS_RSP_DATA_FILTERS(s))
4779 s->res.analysers |= AN_RES_FLT_XFER_DATA;
4780 }
4781 channel_auto_close(&s->req);
4782 channel_auto_read(&s->req);
4783 channel_auto_close(&s->res);
4784 channel_auto_read(&s->res);
4785 }
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4786 else if ((txn->req.msg_state == HTTP_MSG_DONE ||
4787 txn->req.msg_state == HTTP_MSG_CLOSED) &&
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4788 txn->rsp.msg_state == HTTP_MSG_DONE &&
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4789 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
4790 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
4791 /* server-close/keep-alive: terminate this transaction,
4792 * possibly killing the server connection and reinitialize
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4793 * a fresh-new transaction, but only once we're sure there's
4794 * enough room in the request and response buffer to process
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]4795 * another request. They must not hold any pending output data
4796 * and the response buffer must realigned
4797 * (realign is done is http_end_txn_clean_session).
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4798 */
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4799 if (s->req.buf->o)
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4800 s->req.flags |= CF_WAKE_WRITE;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4801 else if (s->res.buf->o)
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4802 s->res.flags |= CF_WAKE_WRITE;
Christopher Fauleta81ff602017-07-18 22:01:05 +0200[diff] [blame]4803 else {
4804 s->req.analysers = AN_REQ_FLT_END;
4805 s->res.analysers = AN_RES_FLT_END;
4806 txn->flags |= TX_WAIT_CLEANUP;
4807 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4808 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4809}
4810
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4811/* This function is an analyser which forwards request body (including chunk
4812 * sizes if any). It is called as soon as we must forward, even if we forward
4813 * zero byte. The only situation where it must not be called is when we're in
4814 * tunnel mode and we want to forward till the close. It's used both to forward
4815 * remaining data and to resync after end of body. It expects the msg_state to
4816 * 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]4817 * 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]4818 * When in MSG_DATA or MSG_TRAILERS, it will automatically forward chunk_len
Willy Tarreauc24715e2014-04-17 15:21:20 +0200[diff] [blame]4819 * bytes of pending data + the headers if not already done.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4820 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4821int http_request_forward_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4822{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4823 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4824 struct http_txn *txn = s->txn;
4825 struct http_msg *msg = &s->txn->req;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]4826 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4827
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4828 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
4829 now_ms, __FUNCTION__,
4830 s,
4831 req,
4832 req->rex, req->wex,
4833 req->flags,
4834 req->buf->i,
4835 req->analysers);
4836
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4837 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
4838 return 0;
4839
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4840 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]4841 ((req->flags & CF_SHUTW) && (req->to_forward || req->buf->o))) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4842 /* Output closed while we were sending data. We must abort and
4843 * wake the other side up.
4844 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4845 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4846 msg->msg_state = HTTP_MSG_ERROR;
4847 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]4848 return 1;
4849 }
4850
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4851 /* Note that we don't have to send 100-continue back because we don't
4852 * need the data to complete our job, and it's up to the server to
4853 * decide whether to return 100, 417 or anything else in return of
4854 * an "Expect: 100-continue" header.
4855 */
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4856 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4857 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
4858 ? HTTP_MSG_CHUNK_SIZE
4859 : HTTP_MSG_DATA);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4860
4861 /* TODO/filters: when http-buffer-request option is set or if a
4862 * rule on url_param exists, the first chunk size could be
4863 * already parsed. In that case, msg->next is after the chunk
4864 * size (including the CRLF after the size). So this case should
4865 * be handled to */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4866 }
4867
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4868 /* Some post-connect processing might want us to refrain from starting to
4869 * forward data. Currently, the only reason for this is "balance url_param"
4870 * whichs need to parse/process the request after we've enabled forwarding.
4871 */
4872 if (unlikely(msg->flags & HTTP_MSGF_WAIT_CONN)) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4873 if (!(s->res.flags & CF_READ_ATTACHED)) {
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4874 channel_auto_connect(req);
Willy Tarreau644c1012014-04-30 18:11:11 +0200[diff] [blame]4875 req->flags |= CF_WAKE_CONNECT;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4876 goto missing_data_or_waiting;
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4877 }
4878 msg->flags &= ~HTTP_MSGF_WAIT_CONN;
4879 }
4880
Willy Tarreau80a92c02014-03-12 10:41:13 +0100[diff] [blame]4881 /* in most states, we should abort in case of early close */
4882 channel_auto_close(req);
4883
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4884 if (req->to_forward) {
4885 /* We can't process the buffer's contents yet */
4886 req->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4887 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4888 }
4889
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4890 if (msg->msg_state < HTTP_MSG_DONE) {
4891 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
4892 ? http_msg_forward_chunked_body(s, msg)
4893 : http_msg_forward_body(s, msg));
4894 if (!ret)
4895 goto missing_data_or_waiting;
4896 if (ret < 0)
4897 goto return_bad_req;
4898 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4899
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4900 /* other states, DONE...TUNNEL */
4901 /* we don't want to forward closes on DONE except in tunnel mode. */
4902 if ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
4903 channel_dont_close(req);
Willy Tarreau5c54c712010-07-17 08:02:58 +0200[diff] [blame]4904
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4905 http_resync_states(s);
4906 if (!(req->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4907 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
4908 if (req->flags & CF_SHUTW) {
4909 /* request errors are most likely due to the
4910 * server aborting the transfer. */
4911 goto aborted_xfer;
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4912 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4913 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]4914 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]4915 goto return_bad_req;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4916 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4917 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4918 }
4919
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4920 /* If "option abortonclose" is set on the backend, we want to monitor
4921 * the client's connection and forward any shutdown notification to the
4922 * server, which will decide whether to close or to go on processing the
4923 * request. We only do that in tunnel mode, and not in other modes since
4924 * it can be abused to exhaust source ports. */
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100[diff] [blame]4925 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]4926 channel_auto_read(req);
4927 if ((req->flags & (CF_SHUTR|CF_READ_NULL)) &&
4928 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN))
4929 s->si[1].flags |= SI_FL_NOLINGER;
4930 channel_auto_close(req);
4931 }
4932 else if (s->txn->meth == HTTP_METH_POST) {
4933 /* POST requests may require to read extra CRLF sent by broken
4934 * browsers and which could cause an RST to be sent upon close
4935 * on some systems (eg: Linux). */
4936 channel_auto_read(req);
4937 }
4938 return 0;
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]4939
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4940 missing_data_or_waiting:
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4941 /* stop waiting for data if the input is closed before the end */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]4942 if (msg->msg_state < HTTP_MSG_ENDING && req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4943 if (!(s->flags & SF_ERR_MASK))
4944 s->flags |= SF_ERR_CLICL;
4945 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4946 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4947 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4948 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4949 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4950 }
4951
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4952 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
4953 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4954 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4955 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4956
4957 goto return_bad_req_stats_ok;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4958 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4959
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4960 /* waiting for the last bits to leave the buffer */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4961 if (req->flags & CF_SHUTW)
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4962 goto aborted_xfer;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4963
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]4964 /* When TE: chunked is used, we need to get there again to parse remaining
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4965 * 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]4966 * And when content-length is used, we never want to let the possible
4967 * shutdown be forwarded to the other side, as the state machine will
4968 * take care of it once the client responds. It's also important to
4969 * prevent TIME_WAITs from accumulating on the backend side, and for
4970 * HTTP/2 where the last frame comes with a shutdown.
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]4971 */
Willy Tarreauff47b3f2017-12-29 16:30:31 +0100[diff] [blame]4972 if (msg->flags & (HTTP_MSGF_TE_CHNK|HTTP_MSGF_CNT_LEN))
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4973 channel_dont_close(req);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]4974
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4975 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4976 * 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]4977 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]4978 * modes are already handled by the stream sock layer. We must not do
4979 * this in content-length mode because it could present the MSG_MORE
4980 * flag with the last block of forwarded data, which would cause an
4981 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4982 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4983 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4984 req->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4985
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4986 return 0;
4987
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4988 return_bad_req: /* let's centralize all bad requests */
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4989 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4990 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]4991 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]4992
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4993 return_bad_req_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4994 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4995 txn->req.msg_state = HTTP_MSG_ERROR;
4996 if (txn->status) {
4997 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4998 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4999 } else {
5000 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5001 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5002 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5003 req->analysers &= AN_REQ_FLT_END;
5004 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]5005
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5006 if (!(s->flags & SF_ERR_MASK))
5007 s->flags |= SF_ERR_PRXCOND;
5008 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5009 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5010 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5011 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5012 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5013 }
5014 return 0;
5015
5016 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5017 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5018 txn->req.msg_state = HTTP_MSG_ERROR;
5019 if (txn->status) {
5020 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5021 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5022 } else {
5023 txn->status = 502;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5024 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5025 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5026 req->analysers &= AN_REQ_FLT_END;
5027 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]5028
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5029 HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
5030 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5031 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5032 HA_ATOMIC_ADD(&objt_server(s->target)->counters.srv_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5033
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5034 if (!(s->flags & SF_ERR_MASK))
5035 s->flags |= SF_ERR_SRVCL;
5036 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5037 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5038 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5039 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5040 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5041 }
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5042 return 0;
5043}
5044
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5045/* This stream analyser waits for a complete HTTP response. It returns 1 if the
5046 * processing can continue on next analysers, or zero if it either needs more
5047 * data or wants to immediately abort the response (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5048 * 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]5049 * when it has nothing left to do, and may remove any analyser when it wants to
5050 * abort.
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5051 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5052int http_wait_for_response(struct stream *s, struct channel *rep, int an_bit)
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5053{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5054 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5055 struct http_txn *txn = s->txn;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5056 struct http_msg *msg = &txn->rsp;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5057 struct hdr_ctx ctx;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5058 int use_close_only;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5059 int cur_idx;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5060 int n;
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]5061
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5062 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]5063 now_ms, __FUNCTION__,
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5064 s,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5065 rep,
5066 rep->rex, rep->wex,
5067 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5068 rep->buf->i,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5069 rep->analysers);
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200[diff] [blame]5070
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5071 /*
5072 * Now parse the partial (or complete) lines.
5073 * We will check the response syntax, and also join multi-line
5074 * headers. An index of all the lines will be elaborated while
5075 * parsing.
5076 *
5077 * For the parsing, we use a 28 states FSM.
5078 *
5079 * Here is the information we currently have :
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5080 * rep->buf->p = beginning of response
5081 * rep->buf->p + msg->eoh = end of processed headers / start of current one
5082 * rep->buf->p + rep->buf->i = end of input data
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]5083 * msg->eol = end of current header or line (LF or CRLF)
5084 * msg->next = first non-visited byte
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5085 */
5086
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5087 next_one:
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5088 /* There's a protected area at the end of the buffer for rewriting
5089 * purposes. We don't want to start to parse the request if the
5090 * protected area is affected, because we may have to move processed
5091 * data later, which is much more complicated.
5092 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5093 if (buffer_not_empty(rep->buf) && msg->msg_state < HTTP_MSG_ERROR) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]5094 if (unlikely(!channel_is_rewritable(rep))) {
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5095 /* some data has still not left the buffer, wake us once that's done */
5096 if (rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
5097 goto abort_response;
5098 channel_dont_close(rep);
5099 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]5100 rep->flags |= CF_WAKE_WRITE;
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5101 return 0;
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5102 }
5103
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5104 if (unlikely(bi_end(rep->buf) < b_ptr(rep->buf, msg->next) ||
5105 bi_end(rep->buf) > rep->buf->data + rep->buf->size - global.tune.maxrewrite))
5106 buffer_slow_realign(rep->buf);
5107
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5108 if (likely(msg->next < rep->buf->i))
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]5109 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5110 }
5111
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5112 /* 1: we might have to print this header in debug mode */
5113 if (unlikely((global.mode & MODE_DEBUG) &&
5114 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]5115 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5116 char *eol, *sol;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5117
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5118 sol = rep->buf->p;
5119 eol = sol + (msg->sl.st.l ? msg->sl.st.l : rep->buf->i);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5120 debug_hdr("srvrep", s, sol, eol);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5121
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5122 sol += hdr_idx_first_pos(&txn->hdr_idx);
5123 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5124
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5125 while (cur_idx) {
5126 eol = sol + txn->hdr_idx.v[cur_idx].len;
5127 debug_hdr("srvhdr", s, sol, eol);
5128 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
5129 cur_idx = txn->hdr_idx.v[cur_idx].next;
5130 }
5131 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5132
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5133 /*
5134 * Now we quickly check if we have found a full valid response.
5135 * If not so, we check the FD and buffer states before leaving.
5136 * A full response is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5137 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5138 * responses are checked first.
5139 *
5140 * Depending on whether the client is still there or not, we
5141 * may send an error response back or not. Note that normally
5142 * we should only check for HTTP status there, and check I/O
5143 * errors somewhere else.
5144 */
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5145
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5146 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5147 /* Invalid response */
5148 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
5149 /* we detected a parsing error. We want to archive this response
5150 * in the dedicated proxy area for later troubleshooting.
5151 */
5152 hdr_response_bad:
5153 if (msg->msg_state == HTTP_MSG_ERROR || msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5154 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]5155
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5156 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5157 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5158 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5159 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5160 }
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]5161 abort_response:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5162 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5163 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5164 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5165 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5166 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5167 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5168
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5169 if (!(s->flags & SF_ERR_MASK))
5170 s->flags |= SF_ERR_PRXCOND;
5171 if (!(s->flags & SF_FINST_MASK))
5172 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5173
5174 return 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5175 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5176
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5177 /* too large response does not fit in buffer. */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5178 else if (buffer_full(rep->buf, global.tune.maxrewrite)) {
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]5179 if (msg->err_pos < 0)
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5180 msg->err_pos = rep->buf->i;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5181 goto hdr_response_bad;
5182 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5183
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5184 /* read error */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5185 else if (rep->flags & CF_READ_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5186 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5187 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]5188 else if (txn->flags & TX_NOT_FIRST)
5189 goto abort_keep_alive;
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5190
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5191 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5192 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5193 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5194 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_ERROR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5195 }
Willy Tarreau461f6622008-08-15 23:43:19 +0200[diff] [blame]5196
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5197 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5198 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5199 txn->status = 502;
Olivier Houchard522eea72017-11-03 16:27:47 +0100[diff] [blame]5200
5201 /* Check to see if the server refused the early data.
5202 * If so, just send a 425
5203 */
5204 if (objt_cs(s->si[1].end)) {
5205 struct connection *conn = objt_cs(s->si[1].end)->conn;
5206
5207 if (conn->err_code == CO_ER_SSL_EARLY_FAILED)
5208 txn->status = 425;
5209 }
5210
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5211 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5212 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5213 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau816b9792009-09-15 21:25:21 +0200[diff] [blame]5214
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5215 if (!(s->flags & SF_ERR_MASK))
5216 s->flags |= SF_ERR_SRVCL;
5217 if (!(s->flags & SF_FINST_MASK))
5218 s->flags |= SF_FINST_H;
Willy Tarreaucebf57e2008-08-15 18:16:37 +0200[diff] [blame]5219 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5220 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5221
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +0200[diff] [blame]5222 /* read timeout : return a 504 to the client. */
5223 else if (rep->flags & CF_READ_TIMEOUT) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5224 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5225 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]5226
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5227 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5228 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5229 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5230 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_TIMEOUT);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5231 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5232
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5233 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5234 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5235 txn->status = 504;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5236 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5237 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5238 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5239
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5240 if (!(s->flags & SF_ERR_MASK))
5241 s->flags |= SF_ERR_SRVTO;
5242 if (!(s->flags & SF_FINST_MASK))
5243 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5244 return 0;
5245 }
Willy Tarreaua7c52762008-08-16 18:40:18 +0200[diff] [blame]5246
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5247 /* client abort with an abortonclose */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5248 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]5249 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
5250 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5251 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5252 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5253
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5254 rep->analysers &= AN_RES_FLT_END;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5255 channel_auto_close(rep);
5256
5257 txn->status = 400;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5258 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5259 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5260
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5261 if (!(s->flags & SF_ERR_MASK))
5262 s->flags |= SF_ERR_CLICL;
5263 if (!(s->flags & SF_FINST_MASK))
5264 s->flags |= SF_FINST_H;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5265
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5266 /* process_stream() will take care of the error */
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5267 return 0;
5268 }
5269
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5270 /* close from server, capture the response if the server has started to respond */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5271 else if (rep->flags & CF_SHUTR) {
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5272 if (msg->msg_state >= HTTP_MSG_RPVER || msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5273 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]5274 else if (txn->flags & TX_NOT_FIRST)
5275 goto abort_keep_alive;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5276
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5277 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5278 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5279 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5280 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_BROKEN_PIPE);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5281 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5282
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5283 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5284 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5285 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5286 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5287 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5288 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5289
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5290 if (!(s->flags & SF_ERR_MASK))
5291 s->flags |= SF_ERR_SRVCL;
5292 if (!(s->flags & SF_FINST_MASK))
5293 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5294 return 0;
5295 }
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5296
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5297 /* write error to client (we don't send any message then) */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5298 else if (rep->flags & CF_WRITE_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5299 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5300 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]5301 else if (txn->flags & TX_NOT_FIRST)
5302 goto abort_keep_alive;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5303
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5304 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5305 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5306 channel_auto_close(rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5307
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5308 if (!(s->flags & SF_ERR_MASK))
5309 s->flags |= SF_ERR_CLICL;
5310 if (!(s->flags & SF_FINST_MASK))
5311 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5312
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5313 /* process_stream() will take care of the error */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5314 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5315 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5316
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5317 channel_dont_close(rep);
Willy Tarreau3f3997e2013-12-15 15:21:32 +0100[diff] [blame]5318 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5319 return 0;
5320 }
5321
5322 /* More interesting part now : we know that we have a complete
5323 * response which at least looks like HTTP. We have an indicator
5324 * of each header's length, so we can parse them quickly.
5325 */
5326
5327 if (unlikely(msg->err_pos >= 0))
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5328 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]5329
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5330 /*
5331 * 1: get the status code
5332 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5333 n = rep->buf->p[msg->sl.st.c] - '0';
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5334 if (n < 1 || n > 5)
5335 n = 0;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5336 /* when the client triggers a 4xx from the server, it's most often due
5337 * to a missing object or permission. These events should be tracked
5338 * because if they happen often, it may indicate a brute force or a
5339 * vulnerability scan.
5340 */
5341 if (n == 4)
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5342 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5343
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5344 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5345 HA_ATOMIC_ADD(&objt_server(s->target)->counters.p.http.rsp[n], 1);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5346
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]5347 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
5348 * exactly one digit "." one digit. This check may be disabled using
5349 * option accept-invalid-http-response.
5350 */
5351 if (!(s->be->options2 & PR_O2_RSPBUG_OK)) {
5352 if (msg->sl.st.v_l != 8) {
5353 msg->err_pos = 0;
5354 goto hdr_response_bad;
5355 }
5356
5357 if (rep->buf->p[4] != '/' ||
5358 !isdigit((unsigned char)rep->buf->p[5]) ||
5359 rep->buf->p[6] != '.' ||
5360 !isdigit((unsigned char)rep->buf->p[7])) {
5361 msg->err_pos = 4;
5362 goto hdr_response_bad;
5363 }
5364 }
5365
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5366 /* check if the response is HTTP/1.1 or above */
5367 if ((msg->sl.st.v_l == 8) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5368 ((rep->buf->p[5] > '1') ||
5369 ((rep->buf->p[5] == '1') && (rep->buf->p[7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5370 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5371
5372 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]5373 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]5374
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5375 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5376 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5377
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5378 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]5379
Willy Tarreau39650402010-03-15 19:44:39 +0100[diff] [blame]5380 /* Adjust server's health based on status code. Note: status codes 501
5381 * and 505 are triggered on demand by client request, so we must not
5382 * count them as server failures.
5383 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5384 if (objt_server(s->target)) {
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5385 if (txn->status >= 100 && (txn->status < 500 || txn->status == 501 || txn->status == 505))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5386 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_OK);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5387 else
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5388 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_STS);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5389 }
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5390
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5391 /*
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5392 * We may be facing a 100-continue response, or any other informational
5393 * 1xx response which is non-final, in which case this is not the right
5394 * response, and we're waiting for the next one. Let's allow this response
5395 * to go to the client and wait for the next one. There's an exception for
5396 * 101 which is used later in the code to switch protocols.
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5397 */
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5398 if (txn->status < 200 &&
5399 (txn->status == 100 || txn->status >= 102)) {
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5400 hdr_idx_init(&txn->hdr_idx);
5401 msg->next -= channel_forward(rep, msg->next);
5402 msg->msg_state = HTTP_MSG_RPBEFORE;
5403 txn->status = 0;
5404 s->logs.t_data = -1; /* was not a response yet */
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5405 FLT_STRM_CB(s, flt_http_reset(s, msg));
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5406 goto next_one;
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5407 }
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5408
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5409 /*
5410 * 2: check for cacheability.
5411 */
5412
5413 switch (txn->status) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5414 case 200:
5415 case 203:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5416 case 204:
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5417 case 206:
5418 case 300:
5419 case 301:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5420 case 404:
5421 case 405:
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5422 case 410:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5423 case 414:
5424 case 501:
Willy Tarreau83ece462017-12-21 15:13:09 +0100[diff] [blame]5425 break;
5426 default:
Willy Tarreauc55ddce2017-12-21 11:41:38 +0100[diff] [blame]5427 /* RFC7231#6.1:
5428 * Responses with status codes that are defined as
5429 * cacheable by default (e.g., 200, 203, 204, 206,
5430 * 300, 301, 404, 405, 410, 414, and 501 in this
5431 * specification) can be reused by a cache with
5432 * heuristic expiration unless otherwise indicated
5433 * by the method definition or explicit cache
5434 * controls [RFC7234]; all other status codes are
5435 * not cacheable by default.
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5436 */
Willy Tarreau83ece462017-12-21 15:13:09 +0100[diff] [blame]5437 txn->flags &= ~(TX_CACHEABLE | TX_CACHE_COOK);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5438 break;
5439 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5440
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5441 /*
5442 * 3: we may need to capture headers
5443 */
5444 s->logs.logwait &= ~LW_RESP;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5445 if (unlikely((s->logs.logwait & LW_RSPHDR) && s->res_cap))
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5446 capture_headers(rep->buf->p, &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5447 s->res_cap, sess->fe->rsp_cap);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5448
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5449 /* 4: determine the transfer-length according to RFC2616 #4.4, updated
5450 * by RFC7230#3.3.3 :
5451 *
5452 * The length of a message body is determined by one of the following
5453 * (in order of precedence):
5454 *
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5455 * 1. Any 2xx (Successful) response to a CONNECT request implies that
5456 * the connection will become a tunnel immediately after the empty
5457 * line that concludes the header fields. A client MUST ignore
5458 * any Content-Length or Transfer-Encoding header fields received
5459 * in such a message. Any 101 response (Switching Protocols) is
5460 * managed in the same manner.
5461 *
5462 * 2. Any response to a HEAD request and any response with a 1xx
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5463 * (Informational), 204 (No Content), or 304 (Not Modified) status
5464 * code is always terminated by the first empty line after the
5465 * header fields, regardless of the header fields present in the
5466 * message, and thus cannot contain a message body.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5467 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5468 * 3. If a Transfer-Encoding header field is present and the chunked
5469 * transfer coding (Section 4.1) is the final encoding, the message
5470 * body length is determined by reading and decoding the chunked
5471 * data until the transfer coding indicates the data is complete.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5472 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5473 * If a Transfer-Encoding header field is present in a response and
5474 * the chunked transfer coding is not the final encoding, the
5475 * message body length is determined by reading the connection until
5476 * it is closed by the server. If a Transfer-Encoding header field
5477 * is present in a request and the chunked transfer coding is not
5478 * the final encoding, the message body length cannot be determined
5479 * reliably; the server MUST respond with the 400 (Bad Request)
5480 * status code and then close the connection.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5481 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5482 * If a message is received with both a Transfer-Encoding and a
5483 * Content-Length header field, the Transfer-Encoding overrides the
5484 * Content-Length. Such a message might indicate an attempt to
5485 * perform request smuggling (Section 9.5) or response splitting
5486 * (Section 9.4) and ought to be handled as an error. A sender MUST
5487 * remove the received Content-Length field prior to forwarding such
5488 * a message downstream.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5489 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5490 * 4. If a message is received without Transfer-Encoding and with
5491 * either multiple Content-Length header fields having differing
5492 * field-values or a single Content-Length header field having an
5493 * invalid value, then the message framing is invalid and the
5494 * recipient MUST treat it as an unrecoverable error. If this is a
5495 * request message, the server MUST respond with a 400 (Bad Request)
5496 * status code and then close the connection. If this is a response
5497 * message received by a proxy, the proxy MUST close the connection
5498 * to the server, discard the received response, and send a 502 (Bad
5499 * Gateway) response to the client. If this is a response message
5500 * received by a user agent, the user agent MUST close the
5501 * connection to the server and discard the received response.
5502 *
5503 * 5. If a valid Content-Length header field is present without
5504 * Transfer-Encoding, its decimal value defines the expected message
5505 * body length in octets. If the sender closes the connection or
5506 * the recipient times out before the indicated number of octets are
5507 * received, the recipient MUST consider the message to be
5508 * incomplete and close the connection.
5509 *
5510 * 6. If this is a request message and none of the above are true, then
5511 * the message body length is zero (no message body is present).
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5512 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5513 * 7. Otherwise, this is a response message without a declared message
5514 * body length, so the message body length is determined by the
5515 * number of octets received prior to the server closing the
5516 * connection.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5517 */
5518
5519 /* Skip parsing if no content length is possible. The response flags
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5520 * remain 0 as well as the chunk_len, which may or may not mirror
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5521 * the real header value, and we note that we know the response's length.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5522 * FIXME: should we parse anyway and return an error on chunked encoding ?
5523 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5524 if (unlikely((txn->meth == HTTP_METH_CONNECT && txn->status == 200) ||
5525 txn->status == 101)) {
5526 /* Either we've established an explicit tunnel, or we're
5527 * switching the protocol. In both cases, we're very unlikely
5528 * to understand the next protocols. We have to switch to tunnel
5529 * mode, so that we transfer the request and responses then let
5530 * this protocol pass unmodified. When we later implement specific
5531 * parsers for such protocols, we'll want to check the Upgrade
5532 * header which contains information about that protocol for
5533 * responses with status 101 (eg: see RFC2817 about TLS).
5534 */
5535 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_TUN;
5536 msg->flags |= HTTP_MSGF_XFER_LEN;
5537 goto end;
5538 }
5539
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5540 if (txn->meth == HTTP_METH_HEAD ||
5541 (txn->status >= 100 && txn->status < 200) ||
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5542 txn->status == 204 || txn->status == 304) {
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5543 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5544 goto skip_content_length;
5545 }
5546
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5547 use_close_only = 0;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5548 ctx.idx = 0;
Willy Tarreau4979d5c2015-05-01 10:06:30 +0200[diff] [blame]5549 while (http_find_header2("Transfer-Encoding", 17, rep->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5550 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5551 msg->flags |= (HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
5552 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5553 /* bad transfer-encoding (chunked followed by something else) */
5554 use_close_only = 1;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5555 msg->flags &= ~(HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5556 break;
5557 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5558 }
5559
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5560 /* Chunked responses must have their content-length removed */
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5561 ctx.idx = 0;
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]5562 if (use_close_only || (msg->flags & HTTP_MSGF_TE_CHNK)) {
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5563 while (http_find_header2("Content-Length", 14, rep->buf->p, &txn->hdr_idx, &ctx))
5564 http_remove_header2(msg, &txn->hdr_idx, &ctx);
5565 }
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]5566 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]5567 signed long long cl;
5568
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5569 if (!ctx.vlen) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5570 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5571 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5572 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5573
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5574 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5575 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5576 goto hdr_response_bad; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5577 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5578
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5579 if (cl < 0) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5580 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5581 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5582 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5583
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5584 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5585 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5586 goto hdr_response_bad; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5587 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5588
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5589 msg->flags |= HTTP_MSGF_CNT_LEN | HTTP_MSGF_XFER_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5590 msg->body_len = msg->chunk_len = cl;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5591 }
5592
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5593 skip_content_length:
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5594 /* Now we have to check if we need to modify the Connection header.
5595 * This is more difficult on the response than it is on the request,
5596 * because we can have two different HTTP versions and we don't know
5597 * how the client will interprete a response. For instance, let's say
5598 * that the client sends a keep-alive request in HTTP/1.0 and gets an
5599 * HTTP/1.1 response without any header. Maybe it will bound itself to
5600 * HTTP/1.0 because it only knows about it, and will consider the lack
5601 * of header as a close, or maybe it knows HTTP/1.1 and can consider
5602 * the lack of header as a keep-alive. Thus we will use two flags
5603 * indicating how a request MAY be understood by the client. In case
5604 * of multiple possibilities, we'll fix the header to be explicit. If
5605 * ambiguous cases such as both close and keepalive are seen, then we
5606 * will fall back to explicit close. Note that we won't take risks with
5607 * HTTP/1.0 clients which may not necessarily understand keep-alive.
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5608 * See doc/internals/connection-header.txt for the complete matrix.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5609 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5610 if ((txn->status >= 200) && !(txn->flags & TX_HDR_CONN_PRS) &&
5611 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN ||
5612 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
5613 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5614 int to_del = 0;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5615
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5616 /* this situation happens when combining pretend-keepalive with httpclose. */
5617 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5618 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5619 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5620 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
5621
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5622 /* on unknown transfer length, we must close */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5623 if (!(msg->flags & HTTP_MSGF_XFER_LEN) &&
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5624 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
5625 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5626
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5627 /* now adjust header transformations depending on current state */
5628 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN ||
5629 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
5630 to_del |= 2; /* remove "keep-alive" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5631 if (!(msg->flags & HTTP_MSGF_VER_11))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5632 to_del |= 1; /* remove "close" for HTTP/1.0 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5633 }
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5634 else { /* SCL / KAL */
5635 to_del |= 1; /* remove "close" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5636 if (txn->req.flags & msg->flags & HTTP_MSGF_VER_11)
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5637 to_del |= 2; /* remove "keep-alive" on pure 1.1 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5638 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5639
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5640 /* Parse and remove some headers from the connection header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]5641 http_parse_connection_header(txn, msg, to_del);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5642
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5643 /* Some keep-alive responses are converted to Server-close if
5644 * the server wants to close.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5645 */
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5646 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL) {
5647 if ((txn->flags & TX_HDR_CONN_CLO) ||
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5648 (!(txn->flags & TX_HDR_CONN_KAL) && !(msg->flags & HTTP_MSGF_VER_11)))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5649 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_SCL;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]5650 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5651 }
5652
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5653 end:
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5654 /* we want to have the response time before we start processing it */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5655 s->logs.t_data = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5656
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5657 /* end of job, return OK */
5658 rep->analysers &= ~an_bit;
5659 rep->analyse_exp = TICK_ETERNITY;
5660 channel_auto_close(rep);
5661 return 1;
5662
5663 abort_keep_alive:
5664 /* A keep-alive request to the server failed on a network error.
5665 * The client is required to retry. We need to close without returning
5666 * any other information so that the client retries.
5667 */
5668 txn->status = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5669 rep->analysers &= AN_RES_FLT_END;
5670 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5671 channel_auto_close(rep);
5672 s->logs.logwait = 0;
5673 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5674 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5675 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5676 http_reply_and_close(s, txn->status, NULL);
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5677 return 0;
5678}
5679
5680/* This function performs all the processing enabled for the current response.
5681 * It normally returns 1 unless it wants to break. It relies on buffers flags,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5682 * and updates s->res.analysers. It might make sense to explode it into several
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5683 * other functions. It works like process_request (see indications above).
5684 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5685int 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]5686{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5687 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5688 struct http_txn *txn = s->txn;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5689 struct http_msg *msg = &txn->rsp;
5690 struct proxy *cur_proxy;
5691 struct cond_wordlist *wl;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]5692 enum rule_result ret = HTTP_RULE_RES_CONT;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5693
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5694 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]5695 now_ms, __FUNCTION__,
5696 s,
5697 rep,
5698 rep->rex, rep->wex,
5699 rep->flags,
5700 rep->buf->i,
5701 rep->analysers);
5702
5703 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) /* we need more data */
5704 return 0;
5705
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5706 /* The stats applet needs to adjust the Connection header but we don't
5707 * apply any filter there.
5708 */
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5709 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
5710 rep->analysers &= ~an_bit;
5711 rep->analyse_exp = TICK_ETERNITY;
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5712 goto skip_filters;
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5713 }
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5714
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5715 /*
5716 * We will have to evaluate the filters.
5717 * As opposed to version 1.2, now they will be evaluated in the
5718 * filters order and not in the header order. This means that
5719 * each filter has to be validated among all headers.
5720 *
5721 * Filters are tried with ->be first, then with ->fe if it is
5722 * different from ->be.
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5723 *
5724 * Maybe we are in resume condiion. In this case I choose the
5725 * "struct proxy" which contains the rule list matching the resume
5726 * pointer. If none of theses "struct proxy" match, I initialise
5727 * the process with the first one.
5728 *
5729 * In fact, I check only correspondance betwwen the current list
5730 * pointer and the ->fe rule list. If it doesn't match, I initialize
5731 * the loop with the ->be.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5732 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5733 if (s->current_rule_list == &sess->fe->http_res_rules)
5734 cur_proxy = sess->fe;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5735 else
5736 cur_proxy = s->be;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5737 while (1) {
5738 struct proxy *rule_set = cur_proxy;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5739
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5740 /* evaluate http-response rules */
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5741 if (ret == HTTP_RULE_RES_CONT) {
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]5742 ret = http_res_get_intercept_rule(cur_proxy, &cur_proxy->http_res_rules, s);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]5743
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5744 if (ret == HTTP_RULE_RES_BADREQ)
5745 goto return_srv_prx_502;
5746
5747 if (ret == HTTP_RULE_RES_DONE) {
5748 rep->analysers &= ~an_bit;
5749 rep->analyse_exp = TICK_ETERNITY;
5750 return 1;
5751 }
5752 }
5753
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5754 /* we need to be called again. */
5755 if (ret == HTTP_RULE_RES_YIELD) {
5756 channel_dont_close(rep);
5757 return 0;
5758 }
5759
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5760 /* try headers filters */
5761 if (rule_set->rsp_exp != NULL) {
5762 if (apply_filters_to_response(s, rep, rule_set) < 0) {
5763 return_bad_resp:
5764 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5765 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5766 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_RSP);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5767 }
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5768 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5769 return_srv_prx_502:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5770 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5771 txn->status = 502;
5772 s->logs.t_data = -1; /* was not a valid response */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5773 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5774 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5775 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5776 if (!(s->flags & SF_ERR_MASK))
5777 s->flags |= SF_ERR_PRXCOND;
5778 if (!(s->flags & SF_FINST_MASK))
5779 s->flags |= SF_FINST_H;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5780 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5781 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5782 }
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5783
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5784 /* has the response been denied ? */
5785 if (txn->flags & TX_SVDENY) {
5786 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5787 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_secu, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5788
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5789 HA_ATOMIC_ADD(&s->be->be_counters.denied_resp, 1);
5790 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_resp, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5791 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]5792 HA_ATOMIC_ADD(&sess->listener->counters->denied_resp, 1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5793
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5794 goto return_srv_prx_502;
5795 }
Willy Tarreau0bbc3cf2006-10-15 14:26:02 +0200[diff] [blame]5796
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5797 /* add response headers from the rule sets in the same order */
5798 list_for_each_entry(wl, &rule_set->rsp_add, list) {
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5799 if (txn->status < 200 && txn->status != 101)
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5800 break;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5801 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]5802 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]5803 ret = acl_pass(ret);
5804 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
5805 ret = !ret;
5806 if (!ret)
5807 continue;
5808 }
5809 if (unlikely(http_header_add_tail(&txn->rsp, &txn->hdr_idx, wl->s) < 0))
5810 goto return_bad_resp;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5811 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5812
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5813 /* check whether we're already working on the frontend */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5814 if (cur_proxy == sess->fe)
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5815 break;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5816 cur_proxy = sess->fe;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5817 }
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5818
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5819 /* After this point, this anayzer can't return yield, so we can
5820 * remove the bit corresponding to this analyzer from the list.
5821 *
5822 * Note that the intermediate returns and goto found previously
5823 * reset the analyzers.
5824 */
5825 rep->analysers &= ~an_bit;
5826 rep->analyse_exp = TICK_ETERNITY;
5827
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5828 /* OK that's all we can do for 1xx responses */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5829 if (unlikely(txn->status < 200 && txn->status != 101))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5830 goto skip_header_mangling;
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5831
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5832 /*
5833 * Now check for a server cookie.
5834 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]5835 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]5836 manage_server_side_cookies(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5837
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5838 /*
5839 * Check for cache-control or pragma headers if required.
5840 */
Willy Tarreau12b32f22017-12-21 16:08:09 +0100[diff] [blame]5841 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]5842 check_response_for_cacheability(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5843
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5844 /*
5845 * Add server cookie in the response if needed
5846 */
5847 if (objt_server(s->target) && (s->be->ck_opts & PR_CK_INS) &&
5848 !((txn->flags & TX_SCK_FOUND) && (s->be->ck_opts & PR_CK_PSV)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5849 (!(s->flags & SF_DIRECT) ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5850 ((s->be->cookie_maxidle || txn->cookie_last_date) &&
5851 (!txn->cookie_last_date || (txn->cookie_last_date - date.tv_sec) < 0)) ||
5852 (s->be->cookie_maxlife && !txn->cookie_first_date) || // set the first_date
5853 (!s->be->cookie_maxlife && txn->cookie_first_date)) && // remove the first_date
5854 (!(s->be->ck_opts & PR_CK_POST) || (txn->meth == HTTP_METH_POST)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5855 !(s->flags & SF_IGNORE_PRST)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5856 /* the server is known, it's not the one the client requested, or the
5857 * cookie's last seen date needs to be refreshed. We have to
5858 * insert a set-cookie here, except if we want to insert only on POST
5859 * requests and this one isn't. Note that servers which don't have cookies
5860 * (eg: some backup servers) will return a full cookie removal request.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5861 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5862 if (!objt_server(s->target)->cookie) {
5863 chunk_printf(&trash,
5864 "Set-Cookie: %s=; Expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/",
5865 s->be->cookie_name);
5866 }
5867 else {
5868 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]5869
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5870 if (s->be->cookie_maxidle || s->be->cookie_maxlife) {
5871 /* emit last_date, which is mandatory */
5872 trash.str[trash.len++] = COOKIE_DELIM_DATE;
5873 s30tob64((date.tv_sec+3) >> 2, trash.str + trash.len);
5874 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5875
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5876 if (s->be->cookie_maxlife) {
5877 /* emit first_date, which is either the original one or
5878 * the current date.
5879 */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]5880 trash.str[trash.len++] = COOKIE_DELIM_DATE;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5881 s30tob64(txn->cookie_first_date ?
5882 txn->cookie_first_date >> 2 :
5883 (date.tv_sec+3) >> 2, trash.str + trash.len);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]5884 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5885 }
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5886 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5887 chunk_appendf(&trash, "; path=/");
5888 }
Willy Tarreau4992dd22012-05-31 21:02:17 +0200[diff] [blame]5889
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5890 if (s->be->cookie_domain)
5891 chunk_appendf(&trash, "; domain=%s", s->be->cookie_domain);
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5892
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5893 if (s->be->ck_opts & PR_CK_HTTPONLY)
5894 chunk_appendf(&trash, "; HttpOnly");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5895
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5896 if (s->be->ck_opts & PR_CK_SECURE)
5897 chunk_appendf(&trash, "; Secure");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5898
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5899 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx, trash.str, trash.len) < 0))
5900 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5901
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5902 txn->flags &= ~TX_SCK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5903 if (objt_server(s->target)->cookie && (s->flags & SF_DIRECT))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5904 /* the server did not change, only the date was updated */
5905 txn->flags |= TX_SCK_UPDATED;
5906 else
5907 txn->flags |= TX_SCK_INSERTED;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5908
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5909 /* Here, we will tell an eventual cache on the client side that we don't
5910 * want it to cache this reply because HTTP/1.0 caches also cache cookies !
5911 * Some caches understand the correct form: 'no-cache="set-cookie"', but
5912 * others don't (eg: apache <= 1.3.26). So we use 'private' instead.
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5913 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5914 if ((s->be->ck_opts & PR_CK_NOC) && (txn->flags & TX_CACHEABLE)) {
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5915
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5916 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5917
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5918 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx,
5919 "Cache-control: private", 22) < 0))
5920 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5921 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5922 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5923
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5924 /*
5925 * Check if result will be cacheable with a cookie.
5926 * We'll block the response if security checks have caught
5927 * nasty things such as a cacheable cookie.
5928 */
5929 if (((txn->flags & (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) ==
5930 (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) &&
5931 (s->be->options & PR_O_CHK_CACHE)) {
5932 /* we're in presence of a cacheable response containing
5933 * a set-cookie header. We'll block it as requested by
5934 * the 'checkcache' option, and send an alert.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5935 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5936 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5937 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_secu, 1);
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5938
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5939 HA_ATOMIC_ADD(&s->be->be_counters.denied_resp, 1);
5940 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_resp, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5941 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]5942 HA_ATOMIC_ADD(&sess->listener->counters->denied_resp, 1);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5943
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]5944 ha_alert("Blocking cacheable cookie in response from instance %s, server %s.\n",
5945 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5946 send_log(s->be, LOG_ALERT,
5947 "Blocking cacheable cookie in response from instance %s, server %s.\n",
5948 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
5949 goto return_srv_prx_502;
5950 }
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]5951
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5952 skip_filters:
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5953 /*
5954 * Adjust "Connection: close" or "Connection: keep-alive" if needed.
5955 * If an "Upgrade" token is found, the header is left untouched in order
5956 * 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]5957 * if anything but "Upgrade" is present in the Connection header. We don't
5958 * want to touch any 101 response either since it's switching to another
5959 * protocol.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5960 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5961 if ((txn->status != 101) && !(txn->flags & TX_HDR_CONN_UPG) &&
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5962 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5963 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5964 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
5965 unsigned int want_flags = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5966
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5967 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
5968 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
5969 /* we want a keep-alive response here. Keep-alive header
5970 * required if either side is not 1.1.
5971 */
5972 if (!(txn->req.flags & msg->flags & HTTP_MSGF_VER_11))
5973 want_flags |= TX_CON_KAL_SET;
5974 }
5975 else {
5976 /* we want a close response here. Close header required if
5977 * the server is 1.1, regardless of the client.
5978 */
5979 if (msg->flags & HTTP_MSGF_VER_11)
5980 want_flags |= TX_CON_CLO_SET;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5981 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5982
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5983 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
5984 http_change_connection_header(txn, msg, want_flags);
5985 }
5986
5987 skip_header_mangling:
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]5988 /* Always enter in the body analyzer */
5989 rep->analysers &= ~AN_RES_FLT_XFER_DATA;
5990 rep->analysers |= AN_RES_HTTP_XFER_BODY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5991
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5992 /* if the user wants to log as soon as possible, without counting
5993 * bytes from the server, then this is the right moment. We have
5994 * to temporarily assign bytes_out to log what we currently have.
5995 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5996 if (!LIST_ISEMPTY(&sess->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5997 s->logs.t_close = s->logs.t_data; /* to get a valid end date */
5998 s->logs.bytes_out = txn->rsp.eoh;
5999 s->do_log(s);
6000 s->logs.bytes_out = 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6001 }
Willy Tarreaue3fa6e52010-01-04 22:57:43 +0100[diff] [blame]6002 return 1;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6003}
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6004
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6005/* This function is an analyser which forwards response body (including chunk
6006 * sizes if any). It is called as soon as we must forward, even if we forward
6007 * zero byte. The only situation where it must not be called is when we're in
6008 * tunnel mode and we want to forward till the close. It's used both to forward
6009 * remaining data and to resync after end of body. It expects the msg_state to
6010 * 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]6011 * 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]6012 *
6013 * It is capable of compressing response data both in content-length mode and
6014 * in chunked mode. The state machines follows different flows depending on
6015 * whether content-length and chunked modes are used, since there are no
6016 * trailers in content-length :
6017 *
6018 * chk-mode cl-mode
6019 * ,----- BODY -----.
6020 * / \
6021 * V size > 0 V chk-mode
6022 * .--> SIZE -------------> DATA -------------> CRLF
6023 * | | size == 0 | last byte |
6024 * | v final crlf v inspected |
6025 * | TRAILERS -----------> DONE |
6026 * | |
6027 * `----------------------------------------------'
6028 *
6029 * Compression only happens in the DATA state, and must be flushed in final
6030 * states (TRAILERS/DONE) or when leaving on missing data. Normal forwarding
6031 * is performed at once on final states for all bytes parsed, or when leaving
6032 * on missing data.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6033 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6034int http_response_forward_body(struct stream *s, struct channel *res, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6035{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6036 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6037 struct http_txn *txn = s->txn;
6038 struct http_msg *msg = &s->txn->rsp;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]6039 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6040
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]6041 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
6042 now_ms, __FUNCTION__,
6043 s,
6044 res,
6045 res->rex, res->wex,
6046 res->flags,
6047 res->buf->i,
6048 res->analysers);
6049
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6050 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
6051 return 0;
6052
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6053 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]6054 ((res->flags & CF_SHUTW) && (res->to_forward || res->buf->o)) ||
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6055 !s->req.analysers) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6056 /* Output closed while we were sending data. We must abort and
6057 * wake the other side up.
6058 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6059 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6060 msg->msg_state = HTTP_MSG_ERROR;
6061 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]6062 return 1;
6063 }
6064
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6065 /* in most states, we should abort in case of early close */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6066 channel_auto_close(res);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]6067
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6068 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6069 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
6070 ? HTTP_MSG_CHUNK_SIZE
6071 : HTTP_MSG_DATA);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6072 }
6073
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6074 if (res->to_forward) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6075 /* We can't process the buffer's contents yet */
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6076 res->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6077 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6078 }
6079
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6080 if (msg->msg_state < HTTP_MSG_DONE) {
6081 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
6082 ? http_msg_forward_chunked_body(s, msg)
6083 : http_msg_forward_body(s, msg));
6084 if (!ret)
6085 goto missing_data_or_waiting;
6086 if (ret < 0)
6087 goto return_bad_res;
6088 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6089
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6090 /* other states, DONE...TUNNEL */
6091 /* for keep-alive we don't want to forward closes on DONE */
6092 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6093 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
6094 channel_dont_close(res);
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]6095
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]6096 http_resync_states(s);
6097 if (!(res->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6098 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
6099 if (res->flags & CF_SHUTW) {
6100 /* response errors are most likely due to the
6101 * client aborting the transfer. */
6102 goto aborted_xfer;
Willy Tarreau5523b322009-12-29 12:05:52 +0100[diff] [blame]6103 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6104 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6105 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]6106 goto return_bad_res;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6107 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6108 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6109 }
Willy Tarreauf51d03c2016-05-02 15:25:15 +0200[diff] [blame]6110 return 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6111
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6112 missing_data_or_waiting:
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6113 if (res->flags & CF_SHUTW)
6114 goto aborted_xfer;
6115
6116 /* stop waiting for data if the input is closed before the end. If the
6117 * client side was already closed, it means that the client has aborted,
6118 * so we don't want to count this as a server abort. Otherwise it's a
6119 * server abort.
6120 */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]6121 if (msg->msg_state < HTTP_MSG_ENDING && res->flags & CF_SHUTR) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6122 if ((s->req.flags & (CF_SHUTR|CF_SHUTW)) == (CF_SHUTR|CF_SHUTW))
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6123 goto aborted_xfer;
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6124 /* If we have some pending data, we continue the processing */
6125 if (!buffer_pending(res->buf)) {
6126 if (!(s->flags & SF_ERR_MASK))
6127 s->flags |= SF_ERR_SRVCL;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6128 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6129 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6130 HA_ATOMIC_ADD(&objt_server(s->target)->counters.srv_aborts, 1);
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6131 goto return_bad_res_stats_ok;
6132 }
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6133 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6134
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6135 /* we need to obey the req analyser, so if it leaves, we must too */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6136 if (!s->req.analysers)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]6137 goto return_bad_res;
6138
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6139 /* When TE: chunked is used, we need to get there again to parse
6140 * remaining chunks even if the server has closed, so we don't want to
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6141 * set CF_DONTCLOSE. Similarly, if keep-alive is set on the client side
6142 * or if there are filters registered on the stream, we don't want to
6143 * forward a close
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6144 */
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6145 if ((msg->flags & HTTP_MSGF_TE_CHNK) ||
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]6146 HAS_DATA_FILTERS(s, res) ||
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6147 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6148 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6149 channel_dont_close(res);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6150
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6151 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6152 * 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]6153 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]6154 * modes are already handled by the stream sock layer. We must not do
6155 * this in content-length mode because it could present the MSG_MORE
6156 * flag with the last block of forwarded data, which would cause an
6157 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6158 */
Christopher Faulet92d36382015-11-05 13:35:03 +0100[diff] [blame]6159 if ((msg->flags & HTTP_MSGF_TE_CHNK) || (msg->flags & HTTP_MSGF_COMPRESSING))
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6160 res->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6161
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6162 /* the stream handler will take care of timeouts and errors */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6163 return 0;
6164
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6165 return_bad_res: /* let's centralize all bad responses */
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6166 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6167 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6168 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6169
6170 return_bad_res_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6171 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6172 txn->rsp.msg_state = HTTP_MSG_ERROR;
Willy Tarreau148d0992010-01-10 10:21:21 +0100[diff] [blame]6173 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6174 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6175 res->analysers &= AN_RES_FLT_END;
6176 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]6177 if (objt_server(s->target))
6178 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6179
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6180 if (!(s->flags & SF_ERR_MASK))
6181 s->flags |= SF_ERR_PRXCOND;
6182 if (!(s->flags & SF_FINST_MASK))
6183 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6184 return 0;
6185
6186 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6187 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6188 txn->rsp.msg_state = HTTP_MSG_ERROR;
6189 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6190 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6191 res->analysers &= AN_RES_FLT_END;
6192 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]6193
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6194 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
6195 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6196 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6197 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6198
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6199 if (!(s->flags & SF_ERR_MASK))
6200 s->flags |= SF_ERR_CLICL;
6201 if (!(s->flags & SF_FINST_MASK))
6202 s->flags |= SF_FINST_D;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6203 return 0;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6204}
6205
6206
6207static inline int
6208http_msg_forward_body(struct stream *s, struct http_msg *msg)
6209{
6210 struct channel *chn = msg->chn;
6211 int ret;
6212
6213 /* Here we have the guarantee to be in HTTP_MSG_DATA or HTTP_MSG_ENDING state */
6214
6215 if (msg->msg_state == HTTP_MSG_ENDING)
6216 goto ending;
6217
6218 /* Neither content-length, nor transfer-encoding was found, so we must
6219 * read the body until the server connection is closed. In that case, we
6220 * eat data as they come. Of course, this happens for response only. */
6221 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6222 unsigned long long len = (chn->buf->i - msg->next);
6223 msg->chunk_len += len;
6224 msg->body_len += len;
6225 }
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6226 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6227 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6228 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6229 msg->next += ret;
6230 msg->chunk_len -= ret;
6231 if (msg->chunk_len) {
6232 /* input empty or output full */
6233 if (chn->buf->i > msg->next)
6234 chn->flags |= CF_WAKE_WRITE;
6235 goto missing_data_or_waiting;
6236 }
6237
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]6238 /* This check can only be true for a response. HTTP_MSGF_XFER_LEN is
6239 * always set for a request. */
6240 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6241 /* The server still sending data that should be filtered */
6242 if (!(chn->flags & CF_SHUTR) && HAS_DATA_FILTERS(s, chn))
6243 goto missing_data_or_waiting;
6244 }
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]6245
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6246 msg->msg_state = HTTP_MSG_ENDING;
6247
6248 ending:
6249 /* we may have some pending data starting at res->buf->p such as a last
6250 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6251 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6252 /* default_ret */ msg->next,
6253 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6254 b_adv(chn->buf, ret);
6255 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6256 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6257 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6258 if (msg->next)
6259 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6260
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6261 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
6262 /* default_ret */ 1,
6263 /* on_error */ goto error,
6264 /* on_wait */ goto waiting);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6265 msg->msg_state = HTTP_MSG_DONE;
6266 return 1;
6267
6268 missing_data_or_waiting:
6269 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6270 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6271 /* default_ret */ msg->next,
6272 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6273 b_adv(chn->buf, ret);
6274 msg->next -= ret;
6275 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6276 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6277 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6278 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6279 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6280 return 0;
6281 error:
6282 return -1;
6283}
6284
6285static inline int
6286http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg)
6287{
6288 struct channel *chn = msg->chn;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6289 unsigned int chunk;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6290 int ret;
6291
6292 /* Here we have the guarantee to be in one of the following state:
6293 * HTTP_MSG_DATA, HTTP_MSG_CHUNK_SIZE, HTTP_MSG_CHUNK_CRLF,
6294 * HTTP_MSG_TRAILERS or HTTP_MSG_ENDING. */
6295
6296 switch_states:
6297 switch (msg->msg_state) {
6298 case HTTP_MSG_DATA:
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6299 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6300 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6301 /* on_error */ goto error);
6302 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6303 msg->chunk_len -= ret;
6304 if (msg->chunk_len) {
6305 /* input empty or output full */
6306 if (chn->buf->i > msg->next)
6307 chn->flags |= CF_WAKE_WRITE;
6308 goto missing_data_or_waiting;
6309 }
6310
6311 /* nothing left to forward for this chunk*/
6312 msg->msg_state = HTTP_MSG_CHUNK_CRLF;
6313 /* fall through for HTTP_MSG_CHUNK_CRLF */
6314
6315 case HTTP_MSG_CHUNK_CRLF:
6316 /* we want the CRLF after the data */
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6317 ret = h1_skip_chunk_crlf(chn->buf, msg->next, chn->buf->i);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6318 if (ret == 0)
6319 goto missing_data_or_waiting;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6320 if (ret < 0) {
6321 msg->err_pos = chn->buf->i + ret;
6322 if (msg->err_pos < 0)
6323 msg->err_pos += chn->buf->size;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6324 goto chunk_parsing_error;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6325 }
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6326 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6327 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
6328 /* fall through for HTTP_MSG_CHUNK_SIZE */
6329
6330 case HTTP_MSG_CHUNK_SIZE:
6331 /* read the chunk size and assign it to ->chunk_len,
6332 * then set ->next to point to the body and switch to
6333 * DATA or TRAILERS state.
6334 */
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6335 ret = h1_parse_chunk_size(chn->buf, msg->next, chn->buf->i, &chunk);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6336 if (ret == 0)
6337 goto missing_data_or_waiting;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6338 if (ret < 0) {
6339 msg->err_pos = chn->buf->i + ret;
6340 if (msg->err_pos < 0)
6341 msg->err_pos += chn->buf->size;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6342 goto chunk_parsing_error;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6343 }
6344
6345 msg->sol = ret;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6346 msg->next += ret;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6347 msg->chunk_len = chunk;
6348 msg->body_len += chunk;
6349
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6350 if (msg->chunk_len) {
6351 msg->msg_state = HTTP_MSG_DATA;
6352 goto switch_states;
6353 }
6354 msg->msg_state = HTTP_MSG_TRAILERS;
6355 /* fall through for HTTP_MSG_TRAILERS */
6356
6357 case HTTP_MSG_TRAILERS:
6358 ret = http_forward_trailers(msg);
6359 if (ret < 0)
6360 goto chunk_parsing_error;
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6361 FLT_STRM_DATA_CB(s, chn, flt_http_chunk_trailers(s, msg),
6362 /* default_ret */ 1,
6363 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6364 msg->next += msg->sol;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6365 if (!ret)
6366 goto missing_data_or_waiting;
6367 break;
6368
6369 case HTTP_MSG_ENDING:
6370 goto ending;
6371
6372 default:
6373 /* This should no happen in this function */
6374 goto error;
6375 }
6376
6377 msg->msg_state = HTTP_MSG_ENDING;
6378 ending:
6379 /* we may have some pending data starting at res->buf->p such as a last
6380 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6381 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]6382 /* default_ret */ msg->next,
6383 /* on_error */ goto error);
6384 b_adv(chn->buf, ret);
6385 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6386 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6387 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6388 if (msg->next)
6389 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6390
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6391 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6392 /* default_ret */ 1,
6393 /* on_error */ goto error,
6394 /* on_wait */ goto waiting);
6395 msg->msg_state = HTTP_MSG_DONE;
6396 return 1;
6397
6398 missing_data_or_waiting:
6399 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6400 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]6401 /* default_ret */ msg->next,
6402 /* on_error */ goto error);
6403 b_adv(chn->buf, ret);
6404 msg->next -= ret;
6405 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6406 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6407 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6408 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6409 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6410 return 0;
6411
6412 chunk_parsing_error:
6413 if (msg->err_pos >= 0) {
6414 if (chn->flags & CF_ISRESP)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6415 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg,
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6416 msg->msg_state, strm_fe(s));
6417 else
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6418 http_capture_bad_message(strm_fe(s), &strm_fe(s)->invalid_req, s,
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6419 msg, msg->msg_state, s->be);
6420 }
6421 error:
6422 return -1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6423}
6424
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6425
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6426/* Iterate the same filter through all request headers.
6427 * Returns 1 if this filter can be stopped upon return, otherwise 0.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6428 * Since it can manage the switch to another backend, it updates the per-proxy
6429 * DENY stats.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6430 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6431int 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]6432{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6433 char *cur_ptr, *cur_end, *cur_next;
6434 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6435 struct http_txn *txn = s->txn;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6436 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6437 int delta;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100[diff] [blame]6438
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6439 last_hdr = 0;
6440
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6441 cur_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6442 old_idx = 0;
6443
6444 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6445 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6446 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6447 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6448 (exp->action == ACT_ALLOW ||
6449 exp->action == ACT_DENY ||
6450 exp->action == ACT_TARPIT))
6451 return 0;
6452
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6453 cur_idx = txn->hdr_idx.v[old_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6454 if (!cur_idx)
6455 break;
6456
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6457 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6458 cur_ptr = cur_next;
6459 cur_end = cur_ptr + cur_hdr->len;
6460 cur_next = cur_end + cur_hdr->cr + 1;
6461
6462 /* Now we have one header between cur_ptr and cur_end,
6463 * and the next header starts at cur_next.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6464 */
6465
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]6466 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]6467 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6468 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6469 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6470 last_hdr = 1;
6471 break;
6472
6473 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6474 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6475 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6476 break;
6477
6478 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6479 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6480 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6481 break;
6482
6483 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6484 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
6485 if (trash.len < 0)
6486 return -1;
6487
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6488 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6489 /* FIXME: if the user adds a newline in the replacement, the
6490 * index will not be recalculated for now, and the new line
6491 * will not be counted as a new header.
6492 */
6493
6494 cur_end += delta;
6495 cur_next += delta;
6496 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6497 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6498 break;
6499
6500 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6501 delta = buffer_replace2(req->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6502 cur_next += delta;
6503
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6504 http_msg_move_end(&txn->req, delta);
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6505 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
6506 txn->hdr_idx.used--;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6507 cur_hdr->len = 0;
6508 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]6509 cur_idx = old_idx;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6510 break;
6511
6512 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6513 }
6514
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6515 /* keep the link from this header to next one in case of later
6516 * removal of next header.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6517 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6518 old_idx = cur_idx;
6519 }
6520 return 0;
6521}
6522
6523
6524/* Apply the filter to the request line.
6525 * Returns 0 if nothing has been done, 1 if the filter has been applied,
6526 * or -1 if a replacement resulted in an invalid request line.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6527 * Since it can manage the switch to another backend, it updates the per-proxy
6528 * DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6529 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6530int 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]6531{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6532 char *cur_ptr, *cur_end;
6533 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6534 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6535 int delta;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6536
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6537 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6538 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6539 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6540 (exp->action == ACT_ALLOW ||
6541 exp->action == ACT_DENY ||
6542 exp->action == ACT_TARPIT))
6543 return 0;
6544 else if (exp->action == ACT_REMOVE)
6545 return 0;
6546
6547 done = 0;
6548
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6549 cur_ptr = req->buf->p;
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6550 cur_end = cur_ptr + txn->req.sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6551
6552 /* Now we have the request line between cur_ptr and cur_end */
6553
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]6554 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]6555 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6556 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6557 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6558 done = 1;
6559 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6560
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6561 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6562 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6563 done = 1;
6564 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6565
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6566 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6567 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6568 done = 1;
6569 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6570
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6571 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6572 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
6573 if (trash.len < 0)
6574 return -1;
6575
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6576 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6577 /* FIXME: if the user adds a newline in the replacement, the
6578 * index will not be recalculated for now, and the new line
6579 * will not be counted as a new header.
6580 */
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6581
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6582 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6583 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]6584 cur_end = (char *)http_parse_reqline(&txn->req,
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6585 HTTP_MSG_RQMETH,
6586 cur_ptr, cur_end + 1,
6587 NULL, NULL);
6588 if (unlikely(!cur_end))
6589 return -1;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6590
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6591 /* we have a full request and we know that we have either a CR
6592 * or an LF at <ptr>.
6593 */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6594 txn->meth = find_http_meth(cur_ptr, txn->req.sl.rq.m_l);
6595 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]6596 /* there is no point trying this regex on headers */
6597 return 1;
6598 }
6599 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6600 return done;
6601}
Willy Tarreau97de6242006-12-27 17:18:38 +0100[diff] [blame]6602
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6603
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6604
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6605/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6606 * 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]6607 * 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]6608 * unparsable request. Since it can manage the switch to another backend, it
6609 * updates the per-proxy DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6610 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6611int apply_filters_to_request(struct stream *s, struct channel *req, struct proxy *px)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6612{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6613 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6614 struct http_txn *txn = s->txn;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6615 struct hdr_exp *exp;
6616
6617 for (exp = px->req_exp; exp; exp = exp->next) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6618 int ret;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6619
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6620 /*
6621 * The interleaving of transformations and verdicts
6622 * makes it difficult to decide to continue or stop
6623 * the evaluation.
6624 */
6625
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6626 if (txn->flags & (TX_CLDENY|TX_CLTARPIT))
6627 break;
6628
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6629 if ((txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6630 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6631 exp->action == ACT_TARPIT || exp->action == ACT_PASS))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6632 continue;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6633
6634 /* if this filter had a condition, evaluate it now and skip to
6635 * next filter if the condition does not match.
6636 */
6637 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6638 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]6639 ret = acl_pass(ret);
6640 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
6641 ret = !ret;
6642
6643 if (!ret)
6644 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6645 }
6646
6647 /* Apply the filter to the request line. */
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6648 ret = apply_filter_to_req_line(s, req, exp);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6649 if (unlikely(ret < 0))
6650 return -1;
6651
6652 if (likely(ret == 0)) {
6653 /* The filter did not match the request, it can be
6654 * iterated through all headers.
6655 */
Willy Tarreau34d4c3c2015-01-30 20:58:58 +0100[diff] [blame]6656 if (unlikely(apply_filter_to_req_headers(s, req, exp) < 0))
6657 return -1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6658 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6659 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6660 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6661}
6662
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6663
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6664/* Find the end of a cookie value contained between <s> and <e>. It works the
6665 * same way as with headers above except that the semi-colon also ends a token.
6666 * See RFC2965 for more information. Note that it requires a valid header to
6667 * return a valid result.
6668 */
6669char *find_cookie_value_end(char *s, const char *e)
6670{
6671 int quoted, qdpair;
6672
6673 quoted = qdpair = 0;
6674 for (; s < e; s++) {
6675 if (qdpair) qdpair = 0;
6676 else if (quoted) {
6677 if (*s == '\\') qdpair = 1;
6678 else if (*s == '"') quoted = 0;
6679 }
6680 else if (*s == '"') quoted = 1;
6681 else if (*s == ',' || *s == ';') return s;
6682 }
6683 return s;
6684}
6685
6686/* Delete a value in a header between delimiters <from> and <next> in buffer
6687 * <buf>. The number of characters displaced is returned, and the pointer to
6688 * the first delimiter is updated if required. The function tries as much as
6689 * possible to respect the following principles :
6690 * - replace <from> delimiter by the <next> one unless <from> points to a
6691 * colon, in which case <next> is simply removed
6692 * - set exactly one space character after the new first delimiter, unless
6693 * there are not enough characters in the block being moved to do so.
6694 * - remove unneeded spaces before the previous delimiter and after the new
6695 * one.
6696 *
6697 * It is the caller's responsibility to ensure that :
6698 * - <from> points to a valid delimiter or the colon ;
6699 * - <next> points to a valid delimiter or the final CR/LF ;
6700 * - there are non-space chars before <from> ;
6701 * - there is a CR/LF at or after <next>.
6702 */
Willy Tarreauaf819352012-08-27 22:08:00 +0200[diff] [blame]6703int del_hdr_value(struct buffer *buf, char **from, char *next)
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6704{
6705 char *prev = *from;
6706
6707 if (*prev == ':') {
6708 /* We're removing the first value, preserve the colon and add a
6709 * space if possible.
6710 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6711 if (!HTTP_IS_CRLF(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6712 next++;
6713 prev++;
6714 if (prev < next)
6715 *prev++ = ' ';
6716
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6717 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6718 next++;
6719 } else {
6720 /* Remove useless spaces before the old delimiter. */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6721 while (HTTP_IS_SPHT(*(prev-1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6722 prev--;
6723 *from = prev;
6724
6725 /* copy the delimiter and if possible a space if we're
6726 * not at the end of the line.
6727 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6728 if (!HTTP_IS_CRLF(*next)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6729 *prev++ = *next++;
6730 if (prev + 1 < next)
6731 *prev++ = ' ';
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6732 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6733 next++;
6734 }
6735 }
6736 return buffer_replace2(buf, prev, next, NULL, 0);
6737}
6738
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6739/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]6740 * Manage client-side cookie. It can impact performance by about 2% so it is
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6741 * desirable to call it only when needed. This code is quite complex because
6742 * of the multiple very crappy and ambiguous syntaxes we have to support. it
6743 * highly recommended not to touch this part without a good reason !
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6744 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6745void manage_client_side_cookies(struct stream *s, struct channel *req)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6746{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6747 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6748 struct session *sess = s->sess;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6749 int preserve_hdr;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6750 int cur_idx, old_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6751 char *hdr_beg, *hdr_end, *hdr_next, *del_from;
6752 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6753
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6754 /* Iterate through the headers, we start with the start line. */
Willy Tarreau83969f42007-01-22 08:55:47 +0100[diff] [blame]6755 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6756 hdr_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6757
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6758 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6759 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6760 int val;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6761
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6762 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6763 hdr_beg = hdr_next;
6764 hdr_end = hdr_beg + cur_hdr->len;
6765 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6766
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6767 /* We have one full header between hdr_beg and hdr_end, and the
6768 * next header starts at hdr_next. We're only interested in
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6769 * "Cookie:" headers.
6770 */
6771
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6772 val = http_header_match2(hdr_beg, hdr_end, "Cookie", 6);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6773 if (!val) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6774 old_idx = cur_idx;
6775 continue;
6776 }
6777
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6778 del_from = NULL; /* nothing to be deleted */
6779 preserve_hdr = 0; /* assume we may kill the whole header */
6780
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6781 /* Now look for cookies. Conforming to RFC2109, we have to support
6782 * attributes whose name begin with a '$', and associate them with
6783 * the right cookie, if we want to delete this cookie.
6784 * So there are 3 cases for each cookie read :
6785 * 1) it's a special attribute, beginning with a '$' : ignore it.
6786 * 2) it's a server id cookie that we *MAY* want to delete : save
6787 * some pointers on it (last semi-colon, beginning of cookie...)
6788 * 3) it's an application cookie : we *MAY* have to delete a previous
6789 * "special" cookie.
6790 * At the end of loop, if a "special" cookie remains, we may have to
6791 * remove it. If no application cookie persists in the header, we
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6792 * *MUST* delete it.
6793 *
6794 * Note: RFC2965 is unclear about the processing of spaces around
6795 * the equal sign in the ATTR=VALUE form. A careful inspection of
6796 * the RFC explicitly allows spaces before it, and not within the
6797 * tokens (attrs or values). An inspection of RFC2109 allows that
6798 * too but section 10.1.3 lets one think that spaces may be allowed
6799 * after the equal sign too, resulting in some (rare) buggy
6800 * implementations trying to do that. So let's do what servers do.
6801 * Latest ietf draft forbids spaces all around. Also, earlier RFCs
6802 * allowed quoted strings in values, with any possible character
6803 * after a backslash, including control chars and delimitors, which
6804 * causes parsing to become ambiguous. Browsers also allow spaces
6805 * within values even without quotes.
6806 *
6807 * We have to keep multiple pointers in order to support cookie
6808 * removal at the beginning, middle or end of header without
6809 * corrupting the header. All of these headers are valid :
6810 *
6811 * Cookie:NAME1=VALUE1;NAME2=VALUE2;NAME3=VALUE3\r\n
6812 * Cookie:NAME1=VALUE1;NAME2_ONLY ;NAME3=VALUE3\r\n
6813 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
6814 * | | | | | | | | |
6815 * | | | | | | | | hdr_end <--+
6816 * | | | | | | | +--> next
6817 * | | | | | | +----> val_end
6818 * | | | | | +-----------> val_beg
6819 * | | | | +--------------> equal
6820 * | | | +----------------> att_end
6821 * | | +---------------------> att_beg
6822 * | +--------------------------> prev
6823 * +--------------------------------> hdr_beg
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6824 */
6825
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6826 for (prev = hdr_beg + 6; prev < hdr_end; prev = next) {
6827 /* Iterate through all cookies on this line */
6828
6829 /* find att_beg */
6830 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6831 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6832 att_beg++;
6833
6834 /* find att_end : this is the first character after the last non
6835 * space before the equal. It may be equal to hdr_end.
6836 */
6837 equal = att_end = att_beg;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6838
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6839 while (equal < hdr_end) {
6840 if (*equal == '=' || *equal == ',' || *equal == ';')
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6841 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6842 if (HTTP_IS_SPHT(*equal++))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6843 continue;
6844 att_end = equal;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6845 }
6846
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6847 /* here, <equal> points to '=', a delimitor or the end. <att_end>
6848 * is between <att_beg> and <equal>, both may be identical.
6849 */
6850
6851 /* look for end of cookie if there is an equal sign */
6852 if (equal < hdr_end && *equal == '=') {
6853 /* look for the beginning of the value */
6854 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6855 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6856 val_beg++;
6857
6858 /* find the end of the value, respecting quotes */
6859 next = find_cookie_value_end(val_beg, hdr_end);
6860
6861 /* make val_end point to the first white space or delimitor after the value */
6862 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6863 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6864 val_end--;
6865 } else {
6866 val_beg = val_end = next = equal;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6867 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6868
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6869 /* We have nothing to do with attributes beginning with '$'. However,
6870 * they will automatically be removed if a header before them is removed,
6871 * since they're supposed to be linked together.
6872 */
6873 if (*att_beg == '$')
6874 continue;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6875
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6876 /* Ignore cookies with no equal sign */
6877 if (equal == next) {
6878 /* This is not our cookie, so we must preserve it. But if we already
6879 * scheduled another cookie for removal, we cannot remove the
6880 * complete header, but we can remove the previous block itself.
6881 */
6882 preserve_hdr = 1;
6883 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6884 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6885 val_end += delta;
6886 next += delta;
6887 hdr_end += delta;
6888 hdr_next += delta;
6889 cur_hdr->len += delta;
6890 http_msg_move_end(&txn->req, delta);
6891 prev = del_from;
6892 del_from = NULL;
6893 }
6894 continue;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6895 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6896
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6897 /* if there are spaces around the equal sign, we need to
6898 * strip them otherwise we'll get trouble for cookie captures,
6899 * or even for rewrites. Since this happens extremely rarely,
6900 * it does not hurt performance.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6901 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6902 if (unlikely(att_end != equal || val_beg > equal + 1)) {
6903 int stripped_before = 0;
6904 int stripped_after = 0;
6905
6906 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6907 stripped_before = buffer_replace2(req->buf, att_end, equal, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6908 equal += stripped_before;
6909 val_beg += stripped_before;
6910 }
6911
6912 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6913 stripped_after = buffer_replace2(req->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6914 val_beg += stripped_after;
6915 stripped_before += stripped_after;
6916 }
6917
6918 val_end += stripped_before;
6919 next += stripped_before;
6920 hdr_end += stripped_before;
6921 hdr_next += stripped_before;
6922 cur_hdr->len += stripped_before;
6923 http_msg_move_end(&txn->req, stripped_before);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6924 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6925 /* now everything is as on the diagram above */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6926
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6927 /* First, let's see if we want to capture this cookie. We check
6928 * that we don't already have a client side cookie, because we
6929 * can only capture one. Also as an optimisation, we ignore
6930 * cookies shorter than the declared name.
6931 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6932 if (sess->fe->capture_name != NULL && txn->cli_cookie == NULL &&
6933 (val_end - att_beg >= sess->fe->capture_namelen) &&
6934 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6935 int log_len = val_end - att_beg;
6936
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]6937 if ((txn->cli_cookie = pool_alloc(pool_head_capture)) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]6938 ha_alert("HTTP logging : out of memory.\n");
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6939 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6940 if (log_len > sess->fe->capture_len)
6941 log_len = sess->fe->capture_len;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6942 memcpy(txn->cli_cookie, att_beg, log_len);
6943 txn->cli_cookie[log_len] = 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6944 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6945 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6946
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6947 /* Persistence cookies in passive, rewrite or insert mode have the
6948 * following form :
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6949 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6950 * Cookie: NAME=SRV[|<lastseen>[|<firstseen>]]
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6951 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6952 * For cookies in prefix mode, the form is :
6953 *
6954 * Cookie: NAME=SRV~VALUE
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6955 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6956 if ((att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
6957 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
6958 struct server *srv = s->be->srv;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6959 char *delim;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6960
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6961 /* if we're in cookie prefix mode, we'll search the delimitor so that we
6962 * have the server ID between val_beg and delim, and the original cookie between
6963 * delim+1 and val_end. Otherwise, delim==val_end :
6964 *
6965 * Cookie: NAME=SRV; # in all but prefix modes
6966 * Cookie: NAME=SRV~OPAQUE ; # in prefix mode
6967 * | || || | |+-> next
6968 * | || || | +--> val_end
6969 * | || || +---------> delim
6970 * | || |+------------> val_beg
6971 * | || +-------------> att_end = equal
6972 * | |+-----------------> att_beg
6973 * | +------------------> prev
6974 * +-------------------------> hdr_beg
6975 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6976
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6977 if (s->be->ck_opts & PR_CK_PFX) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6978 for (delim = val_beg; delim < val_end; delim++)
6979 if (*delim == COOKIE_DELIM)
6980 break;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6981 } else {
6982 char *vbar1;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6983 delim = val_end;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6984 /* Now check if the cookie contains a date field, which would
6985 * appear after a vertical bar ('|') just after the server name
6986 * and before the delimiter.
6987 */
6988 vbar1 = memchr(val_beg, COOKIE_DELIM_DATE, val_end - val_beg);
6989 if (vbar1) {
6990 /* OK, so left of the bar is the server's cookie and
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6991 * right is the last seen date. It is a base64 encoded
6992 * 30-bit value representing the UNIX date since the
6993 * epoch in 4-second quantities.
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6994 */
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6995 int val;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6996 delim = vbar1++;
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6997 if (val_end - vbar1 >= 5) {
6998 val = b64tos30(vbar1);
6999 if (val > 0)
7000 txn->cookie_last_date = val << 2;
7001 }
7002 /* look for a second vertical bar */
7003 vbar1 = memchr(vbar1, COOKIE_DELIM_DATE, val_end - vbar1);
7004 if (vbar1 && (val_end - vbar1 > 5)) {
7005 val = b64tos30(vbar1 + 1);
7006 if (val > 0)
7007 txn->cookie_first_date = val << 2;
7008 }
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7009 }
7010 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7011
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7012 /* if the cookie has an expiration date and the proxy wants to check
7013 * it, then we do that now. We first check if the cookie is too old,
7014 * then only if it has expired. We detect strict overflow because the
7015 * time resolution here is not great (4 seconds). Cookies with dates
7016 * in the future are ignored if their offset is beyond one day. This
7017 * allows an admin to fix timezone issues without expiring everyone
7018 * and at the same time avoids keeping unwanted side effects for too
7019 * long.
7020 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7021 if (txn->cookie_first_date && s->be->cookie_maxlife &&
7022 (((signed)(date.tv_sec - txn->cookie_first_date) > (signed)s->be->cookie_maxlife) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]7023 ((signed)(txn->cookie_first_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7024 txn->flags &= ~TX_CK_MASK;
7025 txn->flags |= TX_CK_OLD;
7026 delim = val_beg; // let's pretend we have not found the cookie
7027 txn->cookie_first_date = 0;
7028 txn->cookie_last_date = 0;
7029 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7030 else if (txn->cookie_last_date && s->be->cookie_maxidle &&
7031 (((signed)(date.tv_sec - txn->cookie_last_date) > (signed)s->be->cookie_maxidle) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]7032 ((signed)(txn->cookie_last_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7033 txn->flags &= ~TX_CK_MASK;
7034 txn->flags |= TX_CK_EXPIRED;
7035 delim = val_beg; // let's pretend we have not found the cookie
7036 txn->cookie_first_date = 0;
7037 txn->cookie_last_date = 0;
7038 }
7039
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7040 /* Here, we'll look for the first running server which supports the cookie.
7041 * This allows to share a same cookie between several servers, for example
7042 * to dedicate backup servers to specific servers only.
7043 * However, to prevent clients from sticking to cookie-less backup server
7044 * when they have incidentely learned an empty cookie, we simply ignore
7045 * empty cookies and mark them as invalid.
7046 * The same behaviour is applied when persistence must be ignored.
7047 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7048 if ((delim == val_beg) || (s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7049 srv = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7050
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7051 while (srv) {
7052 if (srv->cookie && (srv->cklen == delim - val_beg) &&
7053 !memcmp(val_beg, srv->cookie, delim - val_beg)) {
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]7054 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7055 (s->be->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7056 (s->flags & SF_FORCE_PRST)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7057 /* we found the server and we can use it */
7058 txn->flags &= ~TX_CK_MASK;
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]7059 txn->flags |= (srv->cur_state != SRV_ST_STOPPED) ? TX_CK_VALID : TX_CK_DOWN;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7060 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7061 s->target = &srv->obj_type;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7062 break;
7063 } else {
7064 /* we found a server, but it's down,
7065 * mark it as such and go on in case
7066 * another one is available.
7067 */
7068 txn->flags &= ~TX_CK_MASK;
7069 txn->flags |= TX_CK_DOWN;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7070 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7071 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7072 srv = srv->next;
7073 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7074
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7075 if (!srv && !(txn->flags & (TX_CK_DOWN|TX_CK_EXPIRED|TX_CK_OLD))) {
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7076 /* no server matched this cookie or we deliberately skipped it */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7077 txn->flags &= ~TX_CK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7078 if ((s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7079 txn->flags |= TX_CK_UNUSED;
7080 else
7081 txn->flags |= TX_CK_INVALID;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7082 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7083
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7084 /* depending on the cookie mode, we may have to either :
7085 * - delete the complete cookie if we're in insert+indirect mode, so that
7086 * the server never sees it ;
7087 * - remove the server id from the cookie value, and tag the cookie as an
7088 * application cookie so that it does not get accidentely removed later,
7089 * if we're in cookie prefix mode
7090 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7091 if ((s->be->ck_opts & PR_CK_PFX) && (delim != val_end)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7092 int delta; /* negative */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7093
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7094 delta = buffer_replace2(req->buf, val_beg, delim + 1, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7095 val_end += delta;
7096 next += delta;
7097 hdr_end += delta;
7098 hdr_next += delta;
7099 cur_hdr->len += delta;
7100 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7101
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7102 del_from = NULL;
7103 preserve_hdr = 1; /* we want to keep this cookie */
7104 }
7105 else if (del_from == NULL &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7106 (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]7107 del_from = prev;
7108 }
7109 } else {
7110 /* This is not our cookie, so we must preserve it. But if we already
7111 * scheduled another cookie for removal, we cannot remove the
7112 * complete header, but we can remove the previous block itself.
7113 */
7114 preserve_hdr = 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7115
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7116 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7117 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaub8105542010-11-24 18:31:28 +0100[diff] [blame]7118 if (att_beg >= del_from)
7119 att_beg += delta;
7120 if (att_end >= del_from)
7121 att_end += delta;
7122 val_beg += delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7123 val_end += delta;
7124 next += delta;
7125 hdr_end += delta;
7126 hdr_next += delta;
7127 cur_hdr->len += delta;
7128 http_msg_move_end(&txn->req, delta);
7129 prev = del_from;
7130 del_from = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7131 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7132 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7133
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7134 /* continue with next cookie on this header line */
7135 att_beg = next;
7136 } /* for each cookie */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7137
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7138 /* There are no more cookies on this line.
7139 * We may still have one (or several) marked for deletion at the
7140 * end of the line. We must do this now in two ways :
7141 * - if some cookies must be preserved, we only delete from the
7142 * mark to the end of line ;
7143 * - if nothing needs to be preserved, simply delete the whole header
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7144 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7145 if (del_from) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7146 int delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7147 if (preserve_hdr) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7148 delta = del_hdr_value(req->buf, &del_from, hdr_end);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7149 hdr_end = del_from;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7150 cur_hdr->len += delta;
7151 } else {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7152 delta = buffer_replace2(req->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7153
7154 /* FIXME: this should be a separate function */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7155 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7156 txn->hdr_idx.used--;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7157 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7158 cur_idx = old_idx;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7159 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7160 hdr_next += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7161 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7162 }
7163
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7164 /* check next header */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7165 old_idx = cur_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7166 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7167}
7168
7169
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7170/* Iterate the same filter through all response headers contained in <rtr>.
7171 * Returns 1 if this filter can be stopped upon return, otherwise 0.
7172 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7173int 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]7174{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7175 char *cur_ptr, *cur_end, *cur_next;
7176 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7177 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7178 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7179 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7180
7181 last_hdr = 0;
7182
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7183 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7184 old_idx = 0;
7185
7186 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7187 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7188 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7189 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7190 (exp->action == ACT_ALLOW ||
7191 exp->action == ACT_DENY))
7192 return 0;
7193
7194 cur_idx = txn->hdr_idx.v[old_idx].next;
7195 if (!cur_idx)
7196 break;
7197
7198 cur_hdr = &txn->hdr_idx.v[cur_idx];
7199 cur_ptr = cur_next;
7200 cur_end = cur_ptr + cur_hdr->len;
7201 cur_next = cur_end + cur_hdr->cr + 1;
7202
7203 /* Now we have one header between cur_ptr and cur_end,
7204 * and the next header starts at cur_next.
7205 */
7206
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7207 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]7208 switch (exp->action) {
7209 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7210 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7211 last_hdr = 1;
7212 break;
7213
7214 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7215 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7216 last_hdr = 1;
7217 break;
7218
7219 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7220 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7221 if (trash.len < 0)
7222 return -1;
7223
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7224 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7225 /* FIXME: if the user adds a newline in the replacement, the
7226 * index will not be recalculated for now, and the new line
7227 * will not be counted as a new header.
7228 */
7229
7230 cur_end += delta;
7231 cur_next += delta;
7232 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7233 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7234 break;
7235
7236 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7237 delta = buffer_replace2(rtr->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7238 cur_next += delta;
7239
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7240 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7241 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7242 txn->hdr_idx.used--;
7243 cur_hdr->len = 0;
7244 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7245 cur_idx = old_idx;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7246 break;
7247
7248 }
7249 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7250
7251 /* keep the link from this header to next one in case of later
7252 * removal of next header.
7253 */
7254 old_idx = cur_idx;
7255 }
7256 return 0;
7257}
7258
7259
7260/* Apply the filter to the status line in the response buffer <rtr>.
7261 * Returns 0 if nothing has been done, 1 if the filter has been applied,
7262 * or -1 if a replacement resulted in an invalid status line.
7263 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7264int 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]7265{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7266 char *cur_ptr, *cur_end;
7267 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7268 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7269 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7270
7271
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7272 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7273 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7274 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7275 (exp->action == ACT_ALLOW ||
7276 exp->action == ACT_DENY))
7277 return 0;
7278 else if (exp->action == ACT_REMOVE)
7279 return 0;
7280
7281 done = 0;
7282
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7283 cur_ptr = rtr->buf->p;
Willy Tarreau1ba0e5f2010-06-07 13:57:32 +0200[diff] [blame]7284 cur_end = cur_ptr + txn->rsp.sl.st.l;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7285
7286 /* Now we have the status line between cur_ptr and cur_end */
7287
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7288 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]7289 switch (exp->action) {
7290 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7291 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7292 done = 1;
7293 break;
7294
7295 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7296 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7297 done = 1;
7298 break;
7299
7300 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7301 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7302 if (trash.len < 0)
7303 return -1;
7304
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7305 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7306 /* FIXME: if the user adds a newline in the replacement, the
7307 * index will not be recalculated for now, and the new line
7308 * will not be counted as a new header.
7309 */
7310
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7311 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7312 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7313 cur_end = (char *)http_parse_stsline(&txn->rsp,
Willy Tarreau02785762007-04-03 14:45:44 +0200[diff] [blame]7314 HTTP_MSG_RPVER,
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7315 cur_ptr, cur_end + 1,
7316 NULL, NULL);
7317 if (unlikely(!cur_end))
7318 return -1;
7319
7320 /* we have a full respnse and we know that we have either a CR
7321 * or an LF at <ptr>.
7322 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7323 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]7324 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]7325 /* there is no point trying this regex on headers */
7326 return 1;
7327 }
7328 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7329 return done;
7330}
7331
7332
7333
7334/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7335 * 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]7336 * Returns 0 if everything is alright, or -1 in case a replacement lead to an
7337 * unparsable response.
7338 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7339int apply_filters_to_response(struct stream *s, struct channel *rtr, struct proxy *px)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7340{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7341 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7342 struct http_txn *txn = s->txn;
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7343 struct hdr_exp *exp;
7344
7345 for (exp = px->rsp_exp; exp; exp = exp->next) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7346 int ret;
7347
7348 /*
7349 * The interleaving of transformations and verdicts
7350 * makes it difficult to decide to continue or stop
7351 * the evaluation.
7352 */
7353
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7354 if (txn->flags & TX_SVDENY)
7355 break;
7356
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7357 if ((txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7358 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
7359 exp->action == ACT_PASS)) {
7360 exp = exp->next;
7361 continue;
7362 }
7363
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7364 /* if this filter had a condition, evaluate it now and skip to
7365 * next filter if the condition does not match.
7366 */
7367 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7368 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]7369 ret = acl_pass(ret);
7370 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
7371 ret = !ret;
7372 if (!ret)
7373 continue;
7374 }
7375
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7376 /* Apply the filter to the status line. */
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7377 ret = apply_filter_to_sts_line(s, rtr, exp);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7378 if (unlikely(ret < 0))
7379 return -1;
7380
7381 if (likely(ret == 0)) {
7382 /* The filter did not match the response, it can be
7383 * iterated through all headers.
7384 */
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7385 if (unlikely(apply_filter_to_resp_headers(s, rtr, exp) < 0))
7386 return -1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7387 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7388 }
7389 return 0;
7390}
7391
7392
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7393/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]7394 * Manage server-side cookies. It can impact performance by about 2% so it is
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7395 * desirable to call it only when needed. This function is also used when we
7396 * just need to know if there is a cookie (eg: for check-cache).
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7397 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7398void manage_server_side_cookies(struct stream *s, struct channel *res)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7399{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7400 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7401 struct session *sess = s->sess;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7402 struct server *srv;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7403 int is_cookie2;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7404 int cur_idx, old_idx, delta;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7405 char *hdr_beg, *hdr_end, *hdr_next;
7406 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7407
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7408 /* Iterate through the headers.
7409 * we start with the start line.
7410 */
7411 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7412 hdr_next = res->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7413
7414 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
7415 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7416 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7417
7418 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7419 hdr_beg = hdr_next;
7420 hdr_end = hdr_beg + cur_hdr->len;
7421 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7422
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7423 /* We have one full header between hdr_beg and hdr_end, and the
7424 * next header starts at hdr_next. We're only interested in
7425 * "Set-Cookie" and "Set-Cookie2" headers.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7426 */
7427
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7428 is_cookie2 = 0;
7429 prev = hdr_beg + 10;
7430 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie", 10);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7431 if (!val) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7432 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie2", 11);
7433 if (!val) {
7434 old_idx = cur_idx;
7435 continue;
7436 }
7437 is_cookie2 = 1;
7438 prev = hdr_beg + 11;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7439 }
7440
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7441 /* OK, right now we know we have a Set-Cookie* at hdr_beg, and
7442 * <prev> points to the colon.
7443 */
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7444 txn->flags |= TX_SCK_PRESENT;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7445
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7446 /* Maybe we only wanted to see if there was a Set-Cookie (eg:
7447 * check-cache is enabled) and we are not interested in checking
7448 * them. Warning, the cookie capture is declared in the frontend.
Willy Tarreaufd39dda2008-10-17 12:01:58 +0200[diff] [blame]7449 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]7450 if (s->be->cookie_name == NULL && sess->fe->capture_name == NULL)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7451 return;
7452
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7453 /* OK so now we know we have to process this response cookie.
7454 * The format of the Set-Cookie header is slightly different
7455 * from the format of the Cookie header in that it does not
7456 * support the comma as a cookie delimiter (thus the header
7457 * cannot be folded) because the Expires attribute described in
7458 * the original Netscape's spec may contain an unquoted date
7459 * with a comma inside. We have to live with this because
7460 * many browsers don't support Max-Age and some browsers don't
7461 * support quoted strings. However the Set-Cookie2 header is
7462 * clean.
7463 *
7464 * We have to keep multiple pointers in order to support cookie
7465 * removal at the beginning, middle or end of header without
7466 * corrupting the header (in case of set-cookie2). A special
7467 * pointer, <scav> points to the beginning of the set-cookie-av
7468 * fields after the first semi-colon. The <next> pointer points
7469 * either to the end of line (set-cookie) or next unquoted comma
7470 * (set-cookie2). All of these headers are valid :
7471 *
7472 * Set-Cookie: NAME1 = VALUE 1 ; Secure; Path="/"\r\n
7473 * Set-Cookie:NAME=VALUE; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7474 * Set-Cookie: NAME = VALUE ; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7475 * Set-Cookie2: NAME1 = VALUE 1 ; Max-Age=0, NAME2=VALUE2; Discard\r\n
7476 * | | | | | | | | | |
7477 * | | | | | | | | +-> next hdr_end <--+
7478 * | | | | | | | +------------> scav
7479 * | | | | | | +--------------> val_end
7480 * | | | | | +--------------------> val_beg
7481 * | | | | +----------------------> equal
7482 * | | | +------------------------> att_end
7483 * | | +----------------------------> att_beg
7484 * | +------------------------------> prev
7485 * +-----------------------------------------> hdr_beg
7486 */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7487
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7488 for (; prev < hdr_end; prev = next) {
7489 /* Iterate through all cookies on this line */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7490
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7491 /* find att_beg */
7492 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7493 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7494 att_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7495
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7496 /* find att_end : this is the first character after the last non
7497 * space before the equal. It may be equal to hdr_end.
7498 */
7499 equal = att_end = att_beg;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7500
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7501 while (equal < hdr_end) {
7502 if (*equal == '=' || *equal == ';' || (is_cookie2 && *equal == ','))
7503 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7504 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7505 continue;
7506 att_end = equal;
7507 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7508
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7509 /* here, <equal> points to '=', a delimitor or the end. <att_end>
7510 * is between <att_beg> and <equal>, both may be identical.
7511 */
7512
7513 /* look for end of cookie if there is an equal sign */
7514 if (equal < hdr_end && *equal == '=') {
7515 /* look for the beginning of the value */
7516 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7517 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7518 val_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7519
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7520 /* find the end of the value, respecting quotes */
7521 next = find_cookie_value_end(val_beg, hdr_end);
7522
7523 /* make val_end point to the first white space or delimitor after the value */
7524 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7525 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7526 val_end--;
7527 } else {
7528 /* <equal> points to next comma, semi-colon or EOL */
7529 val_beg = val_end = next = equal;
7530 }
7531
7532 if (next < hdr_end) {
7533 /* Set-Cookie2 supports multiple cookies, and <next> points to
7534 * a colon or semi-colon before the end. So skip all attr-value
7535 * pairs and look for the next comma. For Set-Cookie, since
7536 * commas are permitted in values, skip to the end.
7537 */
7538 if (is_cookie2)
7539 next = find_hdr_value_end(next, hdr_end);
7540 else
7541 next = hdr_end;
7542 }
7543
7544 /* Now everything is as on the diagram above */
7545
7546 /* Ignore cookies with no equal sign */
7547 if (equal == val_end)
7548 continue;
7549
7550 /* If there are spaces around the equal sign, we need to
7551 * strip them otherwise we'll get trouble for cookie captures,
7552 * or even for rewrites. Since this happens extremely rarely,
7553 * it does not hurt performance.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7554 */
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7555 if (unlikely(att_end != equal || val_beg > equal + 1)) {
7556 int stripped_before = 0;
7557 int stripped_after = 0;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7558
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7559 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7560 stripped_before = buffer_replace2(res->buf, att_end, equal, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7561 equal += stripped_before;
7562 val_beg += stripped_before;
7563 }
7564
7565 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7566 stripped_after = buffer_replace2(res->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7567 val_beg += stripped_after;
7568 stripped_before += stripped_after;
7569 }
7570
7571 val_end += stripped_before;
7572 next += stripped_before;
7573 hdr_end += stripped_before;
7574 hdr_next += stripped_before;
7575 cur_hdr->len += stripped_before;
Willy Tarreau1fc1f452011-04-07 22:35:37 +0200[diff] [blame]7576 http_msg_move_end(&txn->rsp, stripped_before);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7577 }
7578
7579 /* First, let's see if we want to capture this cookie. We check
7580 * that we don't already have a server side cookie, because we
7581 * can only capture one. Also as an optimisation, we ignore
7582 * cookies shorter than the declared name.
7583 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7584 if (sess->fe->capture_name != NULL &&
Willy Tarreau3bac9ff2007-03-18 17:31:28 +0100[diff] [blame]7585 txn->srv_cookie == NULL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7586 (val_end - att_beg >= sess->fe->capture_namelen) &&
7587 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7588 int log_len = val_end - att_beg;
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]7589 if ((txn->srv_cookie = pool_alloc(pool_head_capture)) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]7590 ha_alert("HTTP logging : out of memory.\n");
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7591 }
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7592 else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7593 if (log_len > sess->fe->capture_len)
7594 log_len = sess->fe->capture_len;
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7595 memcpy(txn->srv_cookie, att_beg, log_len);
7596 txn->srv_cookie[log_len] = 0;
7597 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7598 }
7599
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7600 srv = objt_server(s->target);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7601 /* now check if we need to process it for persistence */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7602 if (!(s->flags & SF_IGNORE_PRST) &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7603 (att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
7604 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7605 /* assume passive cookie by default */
7606 txn->flags &= ~TX_SCK_MASK;
7607 txn->flags |= TX_SCK_FOUND;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7608
7609 /* If the cookie is in insert mode on a known server, we'll delete
7610 * this occurrence because we'll insert another one later.
7611 * 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]7612 * a direct access.
7613 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7614 if (s->be->ck_opts & PR_CK_PSV) {
Willy Tarreauba4c5be2010-10-23 12:46:42 +0200[diff] [blame]7615 /* The "preserve" flag was set, we don't want to touch the
7616 * server's cookie.
7617 */
7618 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7619 else if ((srv && (s->be->ck_opts & PR_CK_INS)) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7620 ((s->flags & SF_DIRECT) && (s->be->ck_opts & PR_CK_IND))) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7621 /* this cookie must be deleted */
7622 if (*prev == ':' && next == hdr_end) {
7623 /* whole header */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7624 delta = buffer_replace2(res->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7625 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7626 txn->hdr_idx.used--;
7627 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7628 cur_idx = old_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7629 hdr_next += delta;
7630 http_msg_move_end(&txn->rsp, delta);
7631 /* note: while both invalid now, <next> and <hdr_end>
7632 * are still equal, so the for() will stop as expected.
7633 */
7634 } else {
7635 /* just remove the value */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7636 int delta = del_hdr_value(res->buf, &prev, next);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7637 next = prev;
7638 hdr_end += delta;
7639 hdr_next += delta;
7640 cur_hdr->len += delta;
7641 http_msg_move_end(&txn->rsp, delta);
7642 }
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7643 txn->flags &= ~TX_SCK_MASK;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7644 txn->flags |= TX_SCK_DELETED;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7645 /* and go on with next cookie */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7646 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7647 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_RW)) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7648 /* replace bytes val_beg->val_end with the cookie name associated
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7649 * with this server since we know it.
7650 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7651 delta = buffer_replace2(res->buf, val_beg, val_end, srv->cookie, srv->cklen);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7652 next += delta;
7653 hdr_end += delta;
7654 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7655 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7656 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7657
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7658 txn->flags &= ~TX_SCK_MASK;
7659 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7660 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7661 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_PFX)) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7662 /* insert the cookie name associated with this server
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7663 * before existing cookie, and insert a delimiter between them..
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7664 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7665 delta = buffer_replace2(res->buf, val_beg, val_beg, srv->cookie, srv->cklen + 1);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7666 next += delta;
7667 hdr_end += delta;
7668 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7669 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7670 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7671
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7672 val_beg[srv->cklen] = COOKIE_DELIM;
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7673 txn->flags &= ~TX_SCK_MASK;
7674 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7675 }
7676 }
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7677 /* that's done for this cookie, check the next one on the same
7678 * line when next != hdr_end (only if is_cookie2).
7679 */
7680 }
7681 /* check next header */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7682 old_idx = cur_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7683 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7684}
7685
7686
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7687/*
Willy Tarreau0ad8e0d2017-12-22 15:03:36 +0100[diff] [blame]7688 * Parses the Cache-Control and Pragma request header fields to determine if
7689 * the request may be served from the cache and/or if it is cacheable. Updates
7690 * s->txn->flags.
7691 */
7692void check_request_for_cacheability(struct stream *s, struct channel *chn)
7693{
7694 struct http_txn *txn = s->txn;
7695 char *p1, *p2;
7696 char *cur_ptr, *cur_end, *cur_next;
7697 int pragma_found;
7698 int cc_found;
7699 int cur_idx;
7700
7701 if ((txn->flags & (TX_CACHEABLE|TX_CACHE_IGNORE)) == TX_CACHE_IGNORE)
7702 return; /* nothing more to do here */
7703
7704 cur_idx = 0;
7705 pragma_found = cc_found = 0;
7706 cur_next = chn->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
7707
7708 while ((cur_idx = txn->hdr_idx.v[cur_idx].next)) {
7709 struct hdr_idx_elem *cur_hdr;
7710 int val;
7711
7712 cur_hdr = &txn->hdr_idx.v[cur_idx];
7713 cur_ptr = cur_next;
7714 cur_end = cur_ptr + cur_hdr->len;
7715 cur_next = cur_end + cur_hdr->cr + 1;
7716
7717 /* We have one full header between cur_ptr and cur_end, and the
7718 * next header starts at cur_next.
7719 */
7720
7721 val = http_header_match2(cur_ptr, cur_end, "Pragma", 6);
7722 if (val) {
7723 if ((cur_end - (cur_ptr + val) >= 8) &&
7724 strncasecmp(cur_ptr + val, "no-cache", 8) == 0) {
7725 pragma_found = 1;
7726 continue;
7727 }
7728 }
7729
7730 val = http_header_match2(cur_ptr, cur_end, "Cache-control", 13);
7731 if (!val)
7732 continue;
7733
7734 /* OK, right now we know we have a cache-control header at cur_ptr */
7735 cc_found = 1;
7736 p1 = cur_ptr + val; /* first non-space char after 'cache-control:' */
7737
7738 if (p1 >= cur_end) /* no more info */
7739 continue;
7740
7741 /* p1 is at the beginning of the value */
7742 p2 = p1;
7743 while (p2 < cur_end && *p2 != '=' && *p2 != ',' && !isspace((unsigned char)*p2))
7744 p2++;
7745
7746 /* we have a complete value between p1 and p2. We don't check the
7747 * values after max-age, max-stale nor min-fresh, we simply don't
7748 * use the cache when they're specified.
7749 */
7750 if (((p2 - p1 == 7) && strncasecmp(p1, "max-age", 7) == 0) ||
7751 ((p2 - p1 == 8) && strncasecmp(p1, "no-cache", 8) == 0) ||
7752 ((p2 - p1 == 9) && strncasecmp(p1, "max-stale", 9) == 0) ||
7753 ((p2 - p1 == 9) && strncasecmp(p1, "min-fresh", 9) == 0)) {
7754 txn->flags |= TX_CACHE_IGNORE;
7755 continue;
7756 }
7757
7758 if ((p2 - p1 == 8) && strncasecmp(p1, "no-store", 8) == 0) {
7759 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7760 continue;
7761 }
7762 }
7763
7764 /* RFC7234#5.4:
7765 * When the Cache-Control header field is also present and
7766 * understood in a request, Pragma is ignored.
7767 * When the Cache-Control header field is not present in a
7768 * request, caches MUST consider the no-cache request
7769 * pragma-directive as having the same effect as if
7770 * "Cache-Control: no-cache" were present.
7771 */
7772 if (!cc_found && pragma_found)
7773 txn->flags |= TX_CACHE_IGNORE;
7774}
7775
7776/*
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7777 * Check if response is cacheable or not. Updates s->txn->flags.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7778 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7779void check_response_for_cacheability(struct stream *s, struct channel *rtr)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7780{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7781 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7782 char *p1, *p2;
7783
7784 char *cur_ptr, *cur_end, *cur_next;
7785 int cur_idx;
7786
Willy Tarreau12b32f22017-12-21 16:08:09 +0100[diff] [blame]7787 if (txn->status < 200) {
7788 /* do not try to cache interim responses! */
7789 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7790 return;
Willy Tarreau12b32f22017-12-21 16:08:09 +0100[diff] [blame]7791 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7792
7793 /* Iterate through the headers.
7794 * we start with the start line.
7795 */
7796 cur_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7797 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7798
7799 while ((cur_idx = txn->hdr_idx.v[cur_idx].next)) {
7800 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7801 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7802
7803 cur_hdr = &txn->hdr_idx.v[cur_idx];
7804 cur_ptr = cur_next;
7805 cur_end = cur_ptr + cur_hdr->len;
7806 cur_next = cur_end + cur_hdr->cr + 1;
7807
7808 /* We have one full header between cur_ptr and cur_end, and the
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7809 * next header starts at cur_next.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7810 */
7811
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7812 val = http_header_match2(cur_ptr, cur_end, "Pragma", 6);
7813 if (val) {
7814 if ((cur_end - (cur_ptr + val) >= 8) &&
7815 strncasecmp(cur_ptr + val, "no-cache", 8) == 0) {
7816 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7817 return;
7818 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7819 }
7820
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7821 val = http_header_match2(cur_ptr, cur_end, "Cache-control", 13);
7822 if (!val)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7823 continue;
7824
7825 /* OK, right now we know we have a cache-control header at cur_ptr */
7826
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7827 p1 = cur_ptr + val; /* first non-space char after 'cache-control:' */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7828
7829 if (p1 >= cur_end) /* no more info */
7830 continue;
7831
7832 /* p1 is at the beginning of the value */
7833 p2 = p1;
7834
Willy Tarreau8f8e6452007-06-17 21:51:38 +0200[diff] [blame]7835 while (p2 < cur_end && *p2 != '=' && *p2 != ',' && !isspace((unsigned char)*p2))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7836 p2++;
7837
7838 /* we have a complete value between p1 and p2 */
7839 if (p2 < cur_end && *p2 == '=') {
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7840 if (((cur_end - p2) > 1 && (p2 - p1 == 7) && strncasecmp(p1, "max-age=0", 9) == 0) ||
7841 ((cur_end - p2) > 1 && (p2 - p1 == 8) && strncasecmp(p1, "s-maxage=0", 10) == 0)) {
7842 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7843 continue;
7844 }
7845
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7846 /* we have something of the form no-cache="set-cookie" */
7847 if ((cur_end - p1 >= 21) &&
7848 strncasecmp(p1, "no-cache=\"set-cookie", 20) == 0
7849 && (p1[20] == '"' || p1[20] == ','))
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7850 txn->flags &= ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7851 continue;
7852 }
7853
7854 /* OK, so we know that either p2 points to the end of string or to a comma */
7855 if (((p2 - p1 == 7) && strncasecmp(p1, "private", 7) == 0) ||
Willy Tarreau5b15f902013-07-04 12:46:56 +0200[diff] [blame]7856 ((p2 - p1 == 8) && strncasecmp(p1, "no-cache", 8) == 0) ||
Willy Tarreaud3900cc2017-12-22 15:35:11 +0100[diff] [blame]7857 ((p2 - p1 == 8) && strncasecmp(p1, "no-store", 8) == 0)) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7858 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7859 return;
7860 }
7861
7862 if ((p2 - p1 == 6) && strncasecmp(p1, "public", 6) == 0) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7863 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7864 continue;
7865 }
7866 }
7867}
7868
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7869
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7870/*
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7871 * 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]7872 * for the current backend.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7873 *
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7874 * 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]7875 * uri_auth field is valid.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7876 *
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7877 * Returns 1 if stats should be provided, otherwise 0.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7878 */
Willy Tarreau295a8372011-03-10 11:25:07 +0100[diff] [blame]7879int stats_check_uri(struct stream_interface *si, struct http_txn *txn, struct proxy *backend)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7880{
7881 struct uri_auth *uri_auth = backend->uri_auth;
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]7882 struct http_msg *msg = &txn->req;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7883 const char *uri = msg->chn->buf->p+ msg->sl.rq.u;
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7884
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7885 if (!uri_auth)
7886 return 0;
7887
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7888 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]7889 return 0;
7890
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7891 /* check URI size */
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]7892 if (uri_auth->uri_len > msg->sl.rq.u_l)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7893 return 0;
7894
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]7895 if (memcmp(uri, uri_auth->uri_prefix, uri_auth->uri_len) != 0)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7896 return 0;
7897
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7898 return 1;
7899}
7900
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7901/*
7902 * Capture a bad request or response and archive it in the proxy's structure.
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7903 * By default it tries to report the error position as msg->err_pos. However if
7904 * this one is not set, it will then report msg->next, which is the last known
7905 * parsing point. The function is able to deal with wrapping buffers. It always
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7906 * displays buffers as a contiguous area starting at buf->p.
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7907 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]7908void http_capture_bad_message(struct proxy *proxy, struct error_snapshot *es, struct stream *s,
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]7909 struct http_msg *msg,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]7910 enum h1_state state, struct proxy *other_end)
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7911{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7912 struct session *sess = strm_sess(s);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7913 struct channel *chn = msg->chn;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7914 int len1, len2;
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]7915
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]7916 HA_SPIN_LOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]7917 es->len = MIN(chn->buf->i, global.tune.bufsize);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7918 len1 = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7919 len1 = MIN(len1, es->len);
7920 len2 = es->len - len1; /* remaining data if buffer wraps */
7921
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]7922 if (!es->buf)
7923 es->buf = malloc(global.tune.bufsize);
7924
7925 if (es->buf) {
7926 memcpy(es->buf, chn->buf->p, len1);
7927 if (len2)
7928 memcpy(es->buf + len1, chn->buf->data, len2);
7929 }
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7930
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7931 if (msg->err_pos >= 0)
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7932 es->pos = msg->err_pos;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7933 else
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7934 es->pos = msg->next;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7935
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7936 es->when = date; // user-visible date
7937 es->sid = s->uniq_id;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]7938 es->srv = objt_server(s->target);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7939 es->oe = other_end;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7940 if (objt_conn(sess->origin))
7941 es->src = __objt_conn(sess->origin)->addr.from;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]7942 else
7943 memset(&es->src, 0, sizeof(es->src));
7944
Willy Tarreau078272e2010-12-12 12:46:33 +0100[diff] [blame]7945 es->state = state;
Willy Tarreau10479e42010-12-12 14:00:34 +0100[diff] [blame]7946 es->ev_id = error_snapshot_id++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7947 es->b_flags = chn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7948 es->s_flags = s->flags;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7949 es->t_flags = s->txn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7950 es->m_flags = msg->flags;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7951 es->b_out = chn->buf->o;
7952 es->b_wrap = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7953 es->b_tot = chn->total;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7954 es->m_clen = msg->chunk_len;
7955 es->m_blen = msg->body_len;
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]7956 HA_SPIN_UNLOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7957}
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7958
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7959/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
7960 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
7961 * performed over the whole headers. Otherwise it must contain a valid header
7962 * context, initialised with ctx->idx=0 for the first lookup in a series. If
7963 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
7964 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
7965 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7966 * -1. The value fetch stops at commas, so this function is suited for use with
7967 * list headers.
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7968 * The return value is 0 if nothing was found, or non-zero otherwise.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7969 */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]7970unsigned int http_get_hdr(const struct http_msg *msg, const char *hname, int hlen,
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7971 struct hdr_idx *idx, int occ,
7972 struct hdr_ctx *ctx, char **vptr, int *vlen)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7973{
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7974 struct hdr_ctx local_ctx;
7975 char *ptr_hist[MAX_HDR_HISTORY];
7976 int len_hist[MAX_HDR_HISTORY];
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7977 unsigned int hist_ptr;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7978 int found;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7979
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7980 if (!ctx) {
7981 local_ctx.idx = 0;
7982 ctx = &local_ctx;
7983 }
7984
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7985 if (occ >= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7986 /* search from the beginning */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7987 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7988 occ--;
7989 if (occ <= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7990 *vptr = ctx->line + ctx->val;
7991 *vlen = ctx->vlen;
7992 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7993 }
7994 }
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7995 return 0;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7996 }
7997
7998 /* negative occurrence, we scan all the list then walk back */
7999 if (-occ > MAX_HDR_HISTORY)
8000 return 0;
8001
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8002 found = hist_ptr = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8003 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8004 ptr_hist[hist_ptr] = ctx->line + ctx->val;
8005 len_hist[hist_ptr] = ctx->vlen;
8006 if (++hist_ptr >= MAX_HDR_HISTORY)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8007 hist_ptr = 0;
8008 found++;
8009 }
8010 if (-occ > found)
8011 return 0;
8012 /* 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]8013 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
8014 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
8015 * to remain in the 0..9 range.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8016 */
Willy Tarreau67dad272013-06-12 22:27:44 +0200[diff] [blame]8017 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8018 if (hist_ptr >= MAX_HDR_HISTORY)
8019 hist_ptr -= MAX_HDR_HISTORY;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8020 *vptr = ptr_hist[hist_ptr];
8021 *vlen = len_hist[hist_ptr];
8022 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8023}
8024
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8025/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
8026 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
8027 * performed over the whole headers. Otherwise it must contain a valid header
8028 * context, initialised with ctx->idx=0 for the first lookup in a series. If
8029 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
8030 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
8031 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
8032 * -1. This function differs from http_get_hdr() in that it only returns full
8033 * line header values and does not stop at commas.
8034 * The return value is 0 if nothing was found, or non-zero otherwise.
8035 */
8036unsigned int http_get_fhdr(const struct http_msg *msg, const char *hname, int hlen,
8037 struct hdr_idx *idx, int occ,
8038 struct hdr_ctx *ctx, char **vptr, int *vlen)
8039{
8040 struct hdr_ctx local_ctx;
8041 char *ptr_hist[MAX_HDR_HISTORY];
8042 int len_hist[MAX_HDR_HISTORY];
8043 unsigned int hist_ptr;
8044 int found;
8045
8046 if (!ctx) {
8047 local_ctx.idx = 0;
8048 ctx = &local_ctx;
8049 }
8050
8051 if (occ >= 0) {
8052 /* search from the beginning */
8053 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
8054 occ--;
8055 if (occ <= 0) {
8056 *vptr = ctx->line + ctx->val;
8057 *vlen = ctx->vlen;
8058 return 1;
8059 }
8060 }
8061 return 0;
8062 }
8063
8064 /* negative occurrence, we scan all the list then walk back */
8065 if (-occ > MAX_HDR_HISTORY)
8066 return 0;
8067
8068 found = hist_ptr = 0;
8069 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
8070 ptr_hist[hist_ptr] = ctx->line + ctx->val;
8071 len_hist[hist_ptr] = ctx->vlen;
8072 if (++hist_ptr >= MAX_HDR_HISTORY)
8073 hist_ptr = 0;
8074 found++;
8075 }
8076 if (-occ > found)
8077 return 0;
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]8078
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8079 /* 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]8080 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
8081 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
8082 * to remain in the 0..9 range.
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8083 */
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]8084 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8085 if (hist_ptr >= MAX_HDR_HISTORY)
8086 hist_ptr -= MAX_HDR_HISTORY;
8087 *vptr = ptr_hist[hist_ptr];
8088 *vlen = len_hist[hist_ptr];
8089 return 1;
8090}
8091
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]8092/*
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]8093 * Print a debug line with a header. Always stop at the first CR or LF char,
8094 * so it is safe to pass it a full buffer if needed. If <err> is not NULL, an
8095 * arrow is printed after the line which contains the pointer.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8096 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8097void debug_hdr(const char *dir, struct stream *s, const char *start, const char *end)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8098{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8099 struct session *sess = strm_sess(s);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]8100 int max;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8101
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8102 chunk_printf(&trash, "%08x:%s.%s[%04x:%04x]: ", s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]8103 dir,
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]8104 objt_conn(sess->origin) ? (unsigned short)objt_conn(sess->origin)->handle.fd : -1,
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]8105 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]8106
8107 for (max = 0; start + max < end; max++)
8108 if (start[max] == '\r' || start[max] == '\n')
8109 break;
8110
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]8111 UBOUND(max, trash.size - trash.len - 3);
8112 trash.len += strlcpy2(trash.str + trash.len, start, max + 1);
8113 trash.str[trash.len++] = '\n';
Willy Tarreau89efaed2013-12-13 15:14:55 +0100[diff] [blame]8114 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8115}
8116
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8117
8118/* Allocate a new HTTP transaction for stream <s> unless there is one already.
8119 * The hdr_idx is allocated as well. In case of allocation failure, everything
8120 * allocated is freed and NULL is returned. Otherwise the new transaction is
8121 * assigned to the stream and returned.
8122 */
8123struct http_txn *http_alloc_txn(struct stream *s)
8124{
8125 struct http_txn *txn = s->txn;
8126
8127 if (txn)
8128 return txn;
8129
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8130 txn = pool_alloc(pool_head_http_txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8131 if (!txn)
8132 return txn;
8133
8134 txn->hdr_idx.size = global.tune.max_http_hdr;
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8135 txn->hdr_idx.v = pool_alloc(pool_head_hdr_idx);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8136 if (!txn->hdr_idx.v) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8137 pool_free(pool_head_http_txn, txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8138 return NULL;
8139 }
8140
8141 s->txn = txn;
8142 return txn;
8143}
8144
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8145void http_txn_reset_req(struct http_txn *txn)
8146{
8147 txn->req.flags = 0;
8148 txn->req.sol = txn->req.eol = txn->req.eoh = 0; /* relative to the buffer */
8149 txn->req.next = 0;
8150 txn->req.chunk_len = 0LL;
8151 txn->req.body_len = 0LL;
8152 txn->req.msg_state = HTTP_MSG_RQBEFORE; /* at the very beginning of the request */
8153}
8154
8155void http_txn_reset_res(struct http_txn *txn)
8156{
8157 txn->rsp.flags = 0;
8158 txn->rsp.sol = txn->rsp.eol = txn->rsp.eoh = 0; /* relative to the buffer */
8159 txn->rsp.next = 0;
8160 txn->rsp.chunk_len = 0LL;
8161 txn->rsp.body_len = 0LL;
8162 txn->rsp.msg_state = HTTP_MSG_RPBEFORE; /* at the very beginning of the response */
8163}
8164
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8165/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8166 * Initialize a new HTTP transaction for stream <s>. It is assumed that all
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8167 * the required fields are properly allocated and that we only need to (re)init
8168 * them. This should be used before processing any new request.
8169 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8170void http_init_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8171{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8172 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8173 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8174
8175 txn->flags = 0;
8176 txn->status = -1;
8177
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]8178 txn->cookie_first_date = 0;
8179 txn->cookie_last_date = 0;
8180
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8181 txn->srv_cookie = NULL;
8182 txn->cli_cookie = NULL;
8183 txn->uri = NULL;
8184
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8185 http_txn_reset_req(txn);
8186 http_txn_reset_res(txn);
8187
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8188 txn->req.chn = &s->req;
8189 txn->rsp.chn = &s->res;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8190
8191 txn->auth.method = HTTP_AUTH_UNKNOWN;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8192
8193 txn->req.err_pos = txn->rsp.err_pos = -2; /* block buggy requests/responses */
8194 if (fe->options2 & PR_O2_REQBUG_OK)
8195 txn->req.err_pos = -1; /* let buggy requests pass */
8196
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8197 if (txn->hdr_idx.v)
8198 hdr_idx_init(&txn->hdr_idx);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]8199
8200 vars_init(&s->vars_txn, SCOPE_TXN);
8201 vars_init(&s->vars_reqres, SCOPE_REQ);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8202}
8203
8204/* to be used at the end of a transaction */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8205void http_end_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8206{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8207 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8208 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8209
8210 /* these ones will have been dynamically allocated */
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8211 pool_free(pool_head_requri, txn->uri);
8212 pool_free(pool_head_capture, txn->cli_cookie);
8213 pool_free(pool_head_capture, txn->srv_cookie);
8214 pool_free(pool_head_uniqueid, s->unique_id);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8215
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]8216 s->unique_id = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8217 txn->uri = NULL;
8218 txn->srv_cookie = NULL;
8219 txn->cli_cookie = NULL;
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8220
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8221 if (s->req_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8222 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8223 for (h = fe->req_cap; h; h = h->next)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8224 pool_free(h->pool, s->req_cap[h->index]);
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8225 memset(s->req_cap, 0, fe->nb_req_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8226 }
8227
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8228 if (s->res_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8229 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8230 for (h = fe->rsp_cap; h; h = h->next)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8231 pool_free(h->pool, s->res_cap[h->index]);
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8232 memset(s->res_cap, 0, fe->nb_rsp_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8233 }
8234
Willy Tarreau6204cd92016-03-10 16:33:04 +0100[diff] [blame]8235 vars_prune(&s->vars_txn, s->sess, s);
8236 vars_prune(&s->vars_reqres, s->sess, s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8237}
8238
8239/* to be used at the end of a transaction to prepare a new one */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8240void http_reset_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8241{
8242 http_end_txn(s);
8243 http_init_txn(s);
8244
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]8245 /* reinitialise the current rule list pointer to NULL. We are sure that
8246 * any rulelist match the NULL pointer.
8247 */
8248 s->current_rule_list = NULL;
8249
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8250 s->be = strm_fe(s);
8251 s->logs.logwait = strm_fe(s)->to_log;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]8252 s->logs.level = 0;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8253 stream_del_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]8254 s->target = NULL;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8255 /* re-init store persistence */
8256 s->store_count = 0;
Willy Tarreau1f0da242014-01-25 11:01:50 +0100[diff] [blame]8257 s->uniq_id = global.req_count++;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8258
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8259 s->pend_pos = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8260
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8261 s->req.flags |= CF_READ_DONTWAIT; /* one read is usually enough */
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8262
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8263 /* We must trim any excess data from the response buffer, because we
8264 * may have blocked an invalid response from a server that we don't
8265 * want to accidentely forward once we disable the analysers, nor do
8266 * we want those data to come along with next response. A typical
8267 * example of such data would be from a buggy server responding to
8268 * a HEAD with some data, or sending more than the advertised
8269 * content-length.
8270 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8271 if (unlikely(s->res.buf->i))
8272 s->res.buf->i = 0;
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8273
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]8274 /* Now we can realign the response buffer */
8275 buffer_realign(s->res.buf);
8276
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8277 s->req.rto = strm_fe(s)->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8278 s->req.wto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8279
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8280 s->res.rto = TICK_ETERNITY;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8281 s->res.wto = strm_fe(s)->timeout.client;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8282
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8283 s->req.rex = TICK_ETERNITY;
8284 s->req.wex = TICK_ETERNITY;
8285 s->req.analyse_exp = TICK_ETERNITY;
8286 s->res.rex = TICK_ETERNITY;
8287 s->res.wex = TICK_ETERNITY;
8288 s->res.analyse_exp = TICK_ETERNITY;
Hongbo Longe39683c2017-03-10 18:41:51 +0100[diff] [blame]8289 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8290}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8291
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8292void free_http_res_rules(struct list *r)
8293{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8294 struct act_rule *tr, *pr;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8295
8296 list_for_each_entry_safe(pr, tr, r, list) {
8297 LIST_DEL(&pr->list);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8298 regex_free(&pr->arg.hdr_add.re);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8299 free(pr);
8300 }
8301}
8302
8303void free_http_req_rules(struct list *r)
8304{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8305 struct act_rule *tr, *pr;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8306
8307 list_for_each_entry_safe(pr, tr, r, list) {
8308 LIST_DEL(&pr->list);
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8309 if (pr->action == ACT_HTTP_REQ_AUTH)
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8310 free(pr->arg.auth.realm);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8311
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8312 regex_free(&pr->arg.hdr_add.re);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8313 free(pr);
8314 }
8315}
8316
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8317/* parse an "http-request" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8318struct 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]8319{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8320 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8321 struct action_kw *custom = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8322 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8323 char *error;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8324
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]8325 rule = calloc(1, sizeof(*rule));
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8326 if (!rule) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8327 ha_alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8328 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8329 }
8330
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8331 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8332 rule->action = ACT_ACTION_ALLOW;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8333 cur_arg = 1;
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8334 } else if (!strcmp(args[0], "deny") || !strcmp(args[0], "block") || !strcmp(args[0], "tarpit")) {
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8335 int code;
8336 int hc;
8337
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8338 if (!strcmp(args[0], "tarpit")) {
8339 rule->action = ACT_HTTP_REQ_TARPIT;
8340 rule->deny_status = HTTP_ERR_500;
8341 }
8342 else {
8343 rule->action = ACT_ACTION_DENY;
8344 rule->deny_status = HTTP_ERR_403;
8345 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8346 cur_arg = 1;
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8347 if (strcmp(args[cur_arg], "deny_status") == 0) {
8348 cur_arg++;
8349 if (!args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8350 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing status code.\n",
8351 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8352 goto out_err;
8353 }
8354
8355 code = atol(args[cur_arg]);
8356 cur_arg++;
8357 for (hc = 0; hc < HTTP_ERR_SIZE; hc++) {
8358 if (http_err_codes[hc] == code) {
8359 rule->deny_status = hc;
8360 break;
8361 }
8362 }
8363
8364 if (hc >= HTTP_ERR_SIZE) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8365 ha_warning("parsing [%s:%d] : status code %d not handled, using default code %d.\n",
8366 file, linenum, code, http_err_codes[rule->deny_status]);
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8367 }
8368 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8369 } else if (!strcmp(args[0], "auth")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8370 rule->action = ACT_HTTP_REQ_AUTH;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8371 cur_arg = 1;
8372
8373 while(*args[cur_arg]) {
8374 if (!strcmp(args[cur_arg], "realm")) {
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8375 rule->arg.auth.realm = strdup(args[cur_arg + 1]);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8376 cur_arg+=2;
8377 continue;
8378 } else
8379 break;
8380 }
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8381 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8382 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8383 cur_arg = 1;
8384
8385 if (!*args[cur_arg] ||
8386 (*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]8387 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer value).\n",
8388 file, linenum, args[0]);
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8389 goto out_err;
8390 }
8391 rule->arg.nice = atoi(args[cur_arg]);
8392 if (rule->arg.nice < -1024)
8393 rule->arg.nice = -1024;
8394 else if (rule->arg.nice > 1024)
8395 rule->arg.nice = 1024;
8396 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8397 } else if (!strcmp(args[0], "set-tos")) {
8398#ifdef IP_TOS
8399 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8400 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8401 cur_arg = 1;
8402
8403 if (!*args[cur_arg] ||
8404 (*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]8405 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8406 file, linenum, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8407 goto out_err;
8408 }
8409
8410 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8411 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8412 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8413 file, linenum, err, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8414 goto out_err;
8415 }
8416 cur_arg++;
8417#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8418 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]8419 goto out_err;
8420#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8421 } else if (!strcmp(args[0], "set-mark")) {
8422#ifdef SO_MARK
8423 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8424 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8425 cur_arg = 1;
8426
8427 if (!*args[cur_arg] ||
8428 (*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]8429 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8430 file, linenum, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8431 goto out_err;
8432 }
8433
8434 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8435 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8436 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8437 file, linenum, err, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8438 goto out_err;
8439 }
8440 cur_arg++;
8441 global.last_checks |= LSTCHK_NETADM;
8442#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8443 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]8444 goto out_err;
8445#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8446 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8447 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8448 cur_arg = 1;
8449
8450 if (!*args[cur_arg] ||
8451 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8452 bad_log_level:
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8453 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (log level name or 'silent').\n",
8454 file, linenum, args[0]);
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8455 goto out_err;
8456 }
8457 if (strcmp(args[cur_arg], "silent") == 0)
8458 rule->arg.loglevel = -1;
8459 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
8460 goto bad_log_level;
8461 cur_arg++;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8462 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8463 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8464 cur_arg = 1;
8465
Willy Tarreau8d1c5162013-04-03 14:13:58 +0200[diff] [blame]8466 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8467 (*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]8468 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8469 file, linenum, args[0]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8470 goto out_err;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8471 }
8472
8473 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8474 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8475 LIST_INIT(&rule->arg.hdr_add.fmt);
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]8476
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8477 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8478 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8479 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]8480 (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]8481 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8482 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8483 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8484 goto out_err;
8485 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8486 free(proxy->conf.lfs_file);
8487 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8488 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8489 cur_arg += 2;
Willy Tarreaub8543922014-06-17 18:58:26 +0200[diff] [blame]8490 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8491 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8492 cur_arg = 1;
8493
8494 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann92df3702014-06-24 11:10:00 +0200[diff] [blame]8495 (*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]8496 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 3 arguments.\n",
8497 file, linenum, args[0]);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8498 goto out_err;
8499 }
8500
8501 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8502 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8503 LIST_INIT(&rule->arg.hdr_add.fmt);
8504
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8505 error = NULL;
8506 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]8507 ha_alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8508 args[cur_arg + 1], error);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8509 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8510 goto out_err;
8511 }
8512
8513 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8514 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8515 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]8516 (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]8517 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8518 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8519 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8520 goto out_err;
8521 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8522
8523 free(proxy->conf.lfs_file);
8524 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8525 proxy->conf.lfs_line = proxy->conf.args.line;
8526 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8527 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8528 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8529 cur_arg = 1;
8530
8531 if (!*args[cur_arg] ||
8532 (*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]8533 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8534 file, linenum, args[0]);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8535 goto out_err;
8536 }
8537
8538 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8539 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8540
8541 proxy->conf.args.ctx = ARGC_HRQ;
8542 free(proxy->conf.lfs_file);
8543 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8544 proxy->conf.lfs_line = proxy->conf.args.line;
8545 cur_arg += 1;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8546 } else if (strncmp(args[0], "track-sc", 8) == 0 &&
8547 args[0][9] == '\0' && args[0][8] >= '0' &&
Willy Tarreaue1cfc1f2014-10-17 11:53:05 +0200[diff] [blame]8548 args[0][8] < '0' + MAX_SESS_STKCTR) { /* track-sc 0..9 */
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8549 struct sample_expr *expr;
8550 unsigned int where;
8551 char *err = NULL;
8552
8553 cur_arg = 1;
8554 proxy->conf.args.ctx = ARGC_TRK;
8555
8556 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
8557 if (!expr) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8558 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8559 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8560 free(err);
8561 goto out_err;
8562 }
8563
8564 where = 0;
8565 if (proxy->cap & PR_CAP_FE)
8566 where |= SMP_VAL_FE_HRQ_HDR;
8567 if (proxy->cap & PR_CAP_BE)
8568 where |= SMP_VAL_BE_HRQ_HDR;
8569
8570 if (!(expr->fetch->val & where)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8571 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule :"
8572 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
8573 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
8574 args[cur_arg-1], sample_src_names(expr->fetch->use));
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8575 free(expr);
8576 goto out_err;
8577 }
8578
8579 if (strcmp(args[cur_arg], "table") == 0) {
8580 cur_arg++;
8581 if (!args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8582 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing table name.\n",
8583 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8584 free(expr);
8585 goto out_err;
8586 }
8587 /* we copy the table name for now, it will be resolved later */
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8588 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8589 cur_arg++;
8590 }
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8591 rule->arg.trk_ctr.expr = expr;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8592 rule->action = ACT_ACTION_TRK_SC0 + args[0][8] - '0';
Christopher Faulet78880fb2017-09-18 14:43:55 +0200[diff] [blame]8593 rule->check_ptr = check_trk_action;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8594 } else if (strcmp(args[0], "redirect") == 0) {
8595 struct redirect_rule *redir;
Willy Tarreau6d4890c2013-11-18 18:04:25 +0100[diff] [blame]8596 char *errmsg = NULL;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8597
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]8598 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]8599 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8600 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8601 goto out_err;
8602 }
8603
8604 /* this redirect rule might already contain a parsed condition which
8605 * we'll pass to the http-request rule.
8606 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8607 rule->action = ACT_HTTP_REDIR;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8608 rule->arg.redir = redir;
8609 rule->cond = redir->cond;
8610 redir->cond = NULL;
8611 cur_arg = 2;
8612 return rule;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8613 } else if (strncmp(args[0], "add-acl", 7) == 0) {
8614 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8615 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8616 /*
8617 * '+ 8' for 'add-acl('
8618 * '- 9' for 'add-acl(' + trailing ')'
8619 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8620 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8621
8622 cur_arg = 1;
8623
8624 if (!*args[cur_arg] ||
8625 (*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]8626 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8627 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8628 goto out_err;
8629 }
8630
8631 LIST_INIT(&rule->arg.map.key);
8632 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8633 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8634 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]8635 (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]8636 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8637 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8638 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8639 goto out_err;
8640 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8641 free(proxy->conf.lfs_file);
8642 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8643 proxy->conf.lfs_line = proxy->conf.args.line;
8644 cur_arg += 1;
8645 } else if (strncmp(args[0], "del-acl", 7) == 0) {
8646 /* http-request del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8647 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8648 /*
8649 * '+ 8' for 'del-acl('
8650 * '- 9' for 'del-acl(' + trailing ')'
8651 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8652 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8653
8654 cur_arg = 1;
8655
8656 if (!*args[cur_arg] ||
8657 (*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]8658 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8659 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8660 goto out_err;
8661 }
8662
8663 LIST_INIT(&rule->arg.map.key);
8664 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8665 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8666 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]8667 (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]8668 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8669 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8670 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8671 goto out_err;
8672 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8673 free(proxy->conf.lfs_file);
8674 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8675 proxy->conf.lfs_line = proxy->conf.args.line;
8676 cur_arg += 1;
8677 } else if (strncmp(args[0], "del-map", 7) == 0) {
8678 /* http-request del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8679 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8680 /*
8681 * '+ 8' for 'del-map('
8682 * '- 9' for 'del-map(' + trailing ')'
8683 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8684 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8685
8686 cur_arg = 1;
8687
8688 if (!*args[cur_arg] ||
8689 (*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]8690 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8691 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8692 goto out_err;
8693 }
8694
8695 LIST_INIT(&rule->arg.map.key);
8696 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8697 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8698 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]8699 (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]8700 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8701 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8702 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8703 goto out_err;
8704 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8705 free(proxy->conf.lfs_file);
8706 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8707 proxy->conf.lfs_line = proxy->conf.args.line;
8708 cur_arg += 1;
8709 } else if (strncmp(args[0], "set-map", 7) == 0) {
8710 /* http-request set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8711 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8712 /*
8713 * '+ 8' for 'set-map('
8714 * '- 9' for 'set-map(' + trailing ')'
8715 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8716 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8717
8718 cur_arg = 1;
8719
8720 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8721 (*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]8722 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8723 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8724 goto out_err;
8725 }
8726
8727 LIST_INIT(&rule->arg.map.key);
8728 LIST_INIT(&rule->arg.map.value);
8729 proxy->conf.args.ctx = ARGC_HRQ;
8730
8731 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8732 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8733 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]8734 (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]8735 ha_alert("parsing [%s:%d]: 'http-request %s' key: %s.\n",
8736 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8737 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8738 goto out_err;
8739 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8740
8741 /* value 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 + 1], proxy, &rule->arg.map.value, 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' pattern: %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 free(proxy->conf.lfs_file);
8751 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8752 proxy->conf.lfs_line = proxy->conf.args.line;
8753
8754 cur_arg += 2;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8755 } else if (((custom = action_http_req_custom(args[0])) != NULL)) {
8756 char *errmsg = NULL;
8757 cur_arg = 1;
8758 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]8759 rule->from = ACT_F_HTTP_REQ;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]8760 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]8761 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8762 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8763 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8764 free(errmsg);
8765 goto out_err;
8766 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8767 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]8768 action_build_list(&http_req_keywords.list, &trash);
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8769 ha_alert("parsing [%s:%d]: 'http-request' expects 'allow', 'deny', 'auth', 'redirect', "
8770 "'tarpit', 'add-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
8771 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', 'track-sc*'"
8772 "%s%s, but got '%s'%s.\n",
8773 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8774 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8775 }
8776
8777 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
8778 struct acl_cond *cond;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]8779 char *errmsg = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8780
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]8781 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]8782 ha_alert("parsing [%s:%d] : error detected while parsing an 'http-request %s' condition : %s.\n",
8783 file, linenum, args[0], errmsg);
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]8784 free(errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8785 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8786 }
8787 rule->cond = cond;
8788 }
8789 else if (*args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8790 ha_alert("parsing [%s:%d]: 'http-request %s' expects 'realm' for 'auth' or"
8791 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
8792 file, linenum, args[0], args[cur_arg]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8793 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8794 }
8795
8796 return rule;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8797 out_err:
8798 free(rule);
8799 return NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8800}
8801
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8802/* parse an "http-respose" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8803struct 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]8804{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8805 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8806 struct action_kw *custom = NULL;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8807 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8808 char *error;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8809
8810 rule = calloc(1, sizeof(*rule));
8811 if (!rule) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8812 ha_alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8813 goto out_err;
8814 }
8815
8816 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8817 rule->action = ACT_ACTION_ALLOW;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8818 cur_arg = 1;
8819 } else if (!strcmp(args[0], "deny")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8820 rule->action = ACT_ACTION_DENY;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8821 cur_arg = 1;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8822 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8823 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8824 cur_arg = 1;
8825
8826 if (!*args[cur_arg] ||
8827 (*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]8828 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer value).\n",
8829 file, linenum, args[0]);
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8830 goto out_err;
8831 }
8832 rule->arg.nice = atoi(args[cur_arg]);
8833 if (rule->arg.nice < -1024)
8834 rule->arg.nice = -1024;
8835 else if (rule->arg.nice > 1024)
8836 rule->arg.nice = 1024;
8837 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8838 } else if (!strcmp(args[0], "set-tos")) {
8839#ifdef IP_TOS
8840 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8841 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8842 cur_arg = 1;
8843
8844 if (!*args[cur_arg] ||
8845 (*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]8846 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8847 file, linenum, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8848 goto out_err;
8849 }
8850
8851 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8852 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8853 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8854 file, linenum, err, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8855 goto out_err;
8856 }
8857 cur_arg++;
8858#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8859 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]8860 goto out_err;
8861#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8862 } else if (!strcmp(args[0], "set-mark")) {
8863#ifdef SO_MARK
8864 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8865 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8866 cur_arg = 1;
8867
8868 if (!*args[cur_arg] ||
8869 (*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]8870 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8871 file, linenum, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8872 goto out_err;
8873 }
8874
8875 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8876 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8877 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8878 file, linenum, err, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8879 goto out_err;
8880 }
8881 cur_arg++;
8882 global.last_checks |= LSTCHK_NETADM;
8883#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8884 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]8885 goto out_err;
8886#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8887 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8888 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8889 cur_arg = 1;
8890
8891 if (!*args[cur_arg] ||
8892 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8893 bad_log_level:
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8894 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (log level name or 'silent').\n",
8895 file, linenum, args[0]);
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8896 goto out_err;
8897 }
8898 if (strcmp(args[cur_arg], "silent") == 0)
8899 rule->arg.loglevel = -1;
Ruoshan Huangdd016782016-06-15 22:16:03 +0800[diff] [blame]8900 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8901 goto bad_log_level;
8902 cur_arg++;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8903 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8904 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8905 cur_arg = 1;
8906
8907 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8908 (*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]8909 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
8910 file, linenum, args[0]);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8911 goto out_err;
8912 }
8913
8914 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8915 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8916 LIST_INIT(&rule->arg.hdr_add.fmt);
8917
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8918 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8919 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8920 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]8921 (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]8922 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8923 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8924 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8925 goto out_err;
8926 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8927 free(proxy->conf.lfs_file);
8928 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8929 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8930 cur_arg += 2;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8931 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8932 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8933 cur_arg = 1;
8934
8935 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann12cb00b2014-08-08 17:29:06 +0200[diff] [blame]8936 (*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]8937 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 3 arguments.\n",
8938 file, linenum, args[0]);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8939 goto out_err;
8940 }
8941
8942 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8943 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8944 LIST_INIT(&rule->arg.hdr_add.fmt);
8945
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8946 error = NULL;
8947 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]8948 ha_alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8949 args[cur_arg + 1], error);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8950 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8951 goto out_err;
8952 }
8953
8954 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8955 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8956 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]8957 (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]8958 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8959 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8960 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8961 goto out_err;
8962 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8963
8964 free(proxy->conf.lfs_file);
8965 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8966 proxy->conf.lfs_line = proxy->conf.args.line;
8967 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8968 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8969 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8970 cur_arg = 1;
8971
8972 if (!*args[cur_arg] ||
8973 (*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]8974 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8975 file, linenum, args[0]);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8976 goto out_err;
8977 }
8978
8979 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8980 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8981
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8982 proxy->conf.args.ctx = ARGC_HRS;
8983 free(proxy->conf.lfs_file);
8984 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8985 proxy->conf.lfs_line = proxy->conf.args.line;
8986 cur_arg += 1;
8987 } else if (strncmp(args[0], "add-acl", 7) == 0) {
8988 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8989 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8990 /*
8991 * '+ 8' for 'add-acl('
8992 * '- 9' for 'add-acl(' + trailing ')'
8993 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8994 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8995
8996 cur_arg = 1;
8997
8998 if (!*args[cur_arg] ||
8999 (*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]9000 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9001 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9002 goto out_err;
9003 }
9004
9005 LIST_INIT(&rule->arg.map.key);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9006 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9007 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9008 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]9009 (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]9010 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9011 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9012 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9013 goto out_err;
9014 }
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9015 free(proxy->conf.lfs_file);
9016 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9017 proxy->conf.lfs_line = proxy->conf.args.line;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9018
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9019 cur_arg += 1;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9020 } else if (strncmp(args[0], "del-acl", 7) == 0) {
9021 /* http-response del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9022 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9023 /*
9024 * '+ 8' for 'del-acl('
9025 * '- 9' for 'del-acl(' + trailing ')'
9026 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9027 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9028
9029 cur_arg = 1;
9030
9031 if (!*args[cur_arg] ||
9032 (*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]9033 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9034 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9035 goto out_err;
9036 }
9037
9038 LIST_INIT(&rule->arg.map.key);
9039 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9040 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9041 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]9042 (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]9043 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9044 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9045 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9046 goto out_err;
9047 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9048 free(proxy->conf.lfs_file);
9049 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9050 proxy->conf.lfs_line = proxy->conf.args.line;
9051 cur_arg += 1;
9052 } else if (strncmp(args[0], "del-map", 7) == 0) {
9053 /* http-response del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9054 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9055 /*
9056 * '+ 8' for 'del-map('
9057 * '- 9' for 'del-map(' + trailing ')'
9058 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9059 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9060
9061 cur_arg = 1;
9062
9063 if (!*args[cur_arg] ||
9064 (*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]9065 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9066 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9067 goto out_err;
9068 }
9069
9070 LIST_INIT(&rule->arg.map.key);
9071 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9072 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9073 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9074 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9075 ha_alert("parsing [%s:%d]: 'http-response %s' %s.\n",
9076 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9077 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9078 goto out_err;
9079 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9080 free(proxy->conf.lfs_file);
9081 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9082 proxy->conf.lfs_line = proxy->conf.args.line;
9083 cur_arg += 1;
9084 } else if (strncmp(args[0], "set-map", 7) == 0) {
9085 /* http-response set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9086 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9087 /*
9088 * '+ 8' for 'set-map('
9089 * '- 9' for 'set-map(' + trailing ')'
9090 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9091 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9092
9093 cur_arg = 1;
9094
9095 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9096 (*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]9097 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
9098 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9099 goto out_err;
9100 }
9101
9102 LIST_INIT(&rule->arg.map.key);
9103 LIST_INIT(&rule->arg.map.value);
9104
9105 proxy->conf.args.ctx = ARGC_HRS;
9106
9107 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9108 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9109 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]9110 (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]9111 ha_alert("parsing [%s:%d]: 'http-response %s' name: %s.\n",
9112 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9113 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9114 goto out_err;
9115 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9116
9117 /* value 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 + 1], proxy, &rule->arg.map.value, 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' value: %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 free(proxy->conf.lfs_file);
9128 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9129 proxy->conf.lfs_line = proxy->conf.args.line;
9130
9131 cur_arg += 2;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9132 } else if (strcmp(args[0], "redirect") == 0) {
9133 struct redirect_rule *redir;
9134 char *errmsg = NULL;
9135
9136 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]9137 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9138 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9139 goto out_err;
9140 }
9141
9142 /* this redirect rule might already contain a parsed condition which
9143 * we'll pass to the http-request rule.
9144 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9145 rule->action = ACT_HTTP_REDIR;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9146 rule->arg.redir = redir;
9147 rule->cond = redir->cond;
9148 redir->cond = NULL;
9149 cur_arg = 2;
9150 return rule;
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9151 } else if (strncmp(args[0], "track-sc", 8) == 0 &&
9152 args[0][9] == '\0' && args[0][8] >= '0' &&
9153 args[0][8] < '0' + MAX_SESS_STKCTR) { /* track-sc 0..9 */
9154 struct sample_expr *expr;
9155 unsigned int where;
9156 char *err = NULL;
9157
9158 cur_arg = 1;
9159 proxy->conf.args.ctx = ARGC_TRK;
9160
9161 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
9162 if (!expr) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9163 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9164 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9165 free(err);
9166 goto out_err;
9167 }
9168
9169 where = 0;
9170 if (proxy->cap & PR_CAP_FE)
9171 where |= SMP_VAL_FE_HRS_HDR;
9172 if (proxy->cap & PR_CAP_BE)
9173 where |= SMP_VAL_BE_HRS_HDR;
9174
9175 if (!(expr->fetch->val & where)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9176 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule :"
9177 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
9178 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
9179 args[cur_arg-1], sample_src_names(expr->fetch->use));
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9180 free(expr);
9181 goto out_err;
9182 }
9183
9184 if (strcmp(args[cur_arg], "table") == 0) {
9185 cur_arg++;
9186 if (!args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9187 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : missing table name.\n",
9188 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9189 free(expr);
9190 goto out_err;
9191 }
9192 /* we copy the table name for now, it will be resolved later */
9193 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
9194 cur_arg++;
9195 }
9196 rule->arg.trk_ctr.expr = expr;
9197 rule->action = ACT_ACTION_TRK_SC0 + args[0][8] - '0';
Christopher Faulet78880fb2017-09-18 14:43:55 +0200[diff] [blame]9198 rule->check_ptr = check_trk_action;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9199 } else if (((custom = action_http_res_custom(args[0])) != NULL)) {
9200 char *errmsg = NULL;
9201 cur_arg = 1;
9202 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]9203 rule->from = ACT_F_HTTP_RES;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]9204 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]9205 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9206 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9207 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9208 free(errmsg);
9209 goto out_err;
9210 }
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9211 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9212 action_build_list(&http_res_keywords.list, &trash);
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9213 ha_alert("parsing [%s:%d]: 'http-response' expects 'allow', 'deny', 'redirect', "
9214 "'add-header', 'del-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
9215 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', 'track-sc*'"
9216 "%s%s, but got '%s'%s.\n",
9217 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9218 goto out_err;
9219 }
9220
9221 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
9222 struct acl_cond *cond;
9223 char *errmsg = NULL;
9224
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]9225 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]9226 ha_alert("parsing [%s:%d] : error detected while parsing an 'http-response %s' condition : %s.\n",
9227 file, linenum, args[0], errmsg);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9228 free(errmsg);
9229 goto out_err;
9230 }
9231 rule->cond = cond;
9232 }
9233 else if (*args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9234 ha_alert("parsing [%s:%d]: 'http-response %s' expects"
9235 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
9236 file, linenum, args[0], args[cur_arg]);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9237 goto out_err;
9238 }
9239
9240 return rule;
9241 out_err:
9242 free(rule);
9243 return NULL;
9244}
9245
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9246/* Parses a redirect rule. Returns the redirect rule on success or NULL on error,
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9247 * 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]9248 * dynamic log-format rule instead of a static string. Parameter <dir> indicates
9249 * the direction of the rule, and equals 0 for request, non-zero for responses.
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9250 */
9251struct redirect_rule *http_parse_redirect_rule(const char *file, int linenum, struct proxy *curproxy,
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9252 const char **args, char **errmsg, int use_fmt, int dir)
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9253{
9254 struct redirect_rule *rule;
9255 int cur_arg;
9256 int type = REDIRECT_TYPE_NONE;
9257 int code = 302;
9258 const char *destination = NULL;
9259 const char *cookie = NULL;
9260 int cookie_set = 0;
9261 unsigned int flags = REDIRECT_FLAG_NONE;
9262 struct acl_cond *cond = NULL;
9263
9264 cur_arg = 0;
9265 while (*(args[cur_arg])) {
9266 if (strcmp(args[cur_arg], "location") == 0) {
9267 if (!*args[cur_arg + 1])
9268 goto missing_arg;
9269
9270 type = REDIRECT_TYPE_LOCATION;
9271 cur_arg++;
9272 destination = args[cur_arg];
9273 }
9274 else if (strcmp(args[cur_arg], "prefix") == 0) {
9275 if (!*args[cur_arg + 1])
9276 goto missing_arg;
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9277 type = REDIRECT_TYPE_PREFIX;
9278 cur_arg++;
9279 destination = args[cur_arg];
9280 }
9281 else if (strcmp(args[cur_arg], "scheme") == 0) {
9282 if (!*args[cur_arg + 1])
9283 goto missing_arg;
9284
9285 type = REDIRECT_TYPE_SCHEME;
9286 cur_arg++;
9287 destination = args[cur_arg];
9288 }
9289 else if (strcmp(args[cur_arg], "set-cookie") == 0) {
9290 if (!*args[cur_arg + 1])
9291 goto missing_arg;
9292
9293 cur_arg++;
9294 cookie = args[cur_arg];
9295 cookie_set = 1;
9296 }
9297 else if (strcmp(args[cur_arg], "clear-cookie") == 0) {
9298 if (!*args[cur_arg + 1])
9299 goto missing_arg;
9300
9301 cur_arg++;
9302 cookie = args[cur_arg];
9303 cookie_set = 0;
9304 }
9305 else if (strcmp(args[cur_arg], "code") == 0) {
9306 if (!*args[cur_arg + 1])
9307 goto missing_arg;
9308
9309 cur_arg++;
9310 code = atol(args[cur_arg]);
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9311 if (code < 301 || code > 308 || (code > 303 && code < 307)) {
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9312 memprintf(errmsg,
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9313 "'%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]9314 args[cur_arg - 1], args[cur_arg]);
9315 return NULL;
9316 }
9317 }
9318 else if (!strcmp(args[cur_arg],"drop-query")) {
9319 flags |= REDIRECT_FLAG_DROP_QS;
9320 }
9321 else if (!strcmp(args[cur_arg],"append-slash")) {
9322 flags |= REDIRECT_FLAG_APPEND_SLASH;
9323 }
9324 else if (strcmp(args[cur_arg], "if") == 0 ||
9325 strcmp(args[cur_arg], "unless") == 0) {
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]9326 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]9327 if (!cond) {
9328 memprintf(errmsg, "error in condition: %s", *errmsg);
9329 return NULL;
9330 }
9331 break;
9332 }
9333 else {
9334 memprintf(errmsg,
9335 "expects 'code', 'prefix', 'location', 'scheme', 'set-cookie', 'clear-cookie', 'drop-query' or 'append-slash' (was '%s')",
9336 args[cur_arg]);
9337 return NULL;
9338 }
9339 cur_arg++;
9340 }
9341
9342 if (type == REDIRECT_TYPE_NONE) {
9343 memprintf(errmsg, "redirection type expected ('prefix', 'location', or 'scheme')");
9344 return NULL;
9345 }
9346
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9347 if (dir && type != REDIRECT_TYPE_LOCATION) {
9348 memprintf(errmsg, "response only supports redirect type 'location'");
9349 return NULL;
9350 }
9351
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]9352 rule = calloc(1, sizeof(*rule));
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9353 rule->cond = cond;
Willy Tarreau60e08382013-12-03 00:48:45 +0100[diff] [blame]9354 LIST_INIT(&rule->rdr_fmt);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9355
9356 if (!use_fmt) {
9357 /* old-style static redirect rule */
9358 rule->rdr_str = strdup(destination);
9359 rule->rdr_len = strlen(destination);
9360 }
9361 else {
9362 /* log-format based redirect rule */
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9363
9364 /* Parse destination. Note that in the REDIRECT_TYPE_PREFIX case,
9365 * if prefix == "/", we don't want to add anything, otherwise it
9366 * makes it hard for the user to configure a self-redirection.
9367 */
Godbachd9722032014-12-18 15:44:58 +0800[diff] [blame]9368 curproxy->conf.args.ctx = ARGC_RDR;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9369 if (!(type == REDIRECT_TYPE_PREFIX && destination[0] == '/' && destination[1] == '\0')) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9370 if (!parse_logformat_string(destination, curproxy, &rule->rdr_fmt, LOG_OPT_HTTP,
9371 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]9372 : (curproxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9373 errmsg)) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9374 return NULL;
9375 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9376 free(curproxy->conf.lfs_file);
9377 curproxy->conf.lfs_file = strdup(curproxy->conf.args.file);
9378 curproxy->conf.lfs_line = curproxy->conf.args.line;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9379 }
9380 }
9381
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9382 if (cookie) {
9383 /* depending on cookie_set, either we want to set the cookie, or to clear it.
9384 * a clear consists in appending "; path=/; Max-Age=0;" at the end.
9385 */
9386 rule->cookie_len = strlen(cookie);
9387 if (cookie_set) {
9388 rule->cookie_str = malloc(rule->cookie_len + 10);
9389 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9390 memcpy(rule->cookie_str + rule->cookie_len, "; path=/;", 10);
9391 rule->cookie_len += 9;
9392 } else {
9393 rule->cookie_str = malloc(rule->cookie_len + 21);
9394 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9395 memcpy(rule->cookie_str + rule->cookie_len, "; path=/; Max-Age=0;", 21);
9396 rule->cookie_len += 20;
9397 }
9398 }
9399 rule->type = type;
9400 rule->code = code;
9401 rule->flags = flags;
9402 LIST_INIT(&rule->list);
9403 return rule;
9404
9405 missing_arg:
9406 memprintf(errmsg, "missing argument for '%s'", args[cur_arg]);
9407 return NULL;
9408}
9409
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9410/************************************************************************/
9411/* The code below is dedicated to ACL parsing and matching */
9412/************************************************************************/
9413
9414
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9415/* This function ensures that the prerequisites for an L7 fetch are ready,
9416 * which means that a request or response is ready. If some data is missing,
9417 * 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]9418 * to extract data from L7. If <req_vol> is non-null during a request prefetch,
9419 * another test is made to ensure the required information is not gone.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9420 *
9421 * The function returns :
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9422 * 0 with SMP_F_MAY_CHANGE in the sample flags if some data is missing to
9423 * decide whether or not an HTTP message is present ;
9424 * 0 if the requested data cannot be fetched or if it is certain that
9425 * we'll never have any HTTP message there ;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9426 * 1 if an HTTP message is ready
9427 */
James Rosewell91a41cb2015-09-18 17:11:16 +0100[diff] [blame]9428int smp_prefetch_http(struct proxy *px, struct stream *s, unsigned int opt,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9429 const struct arg *args, struct sample *smp, int req_vol)
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9430{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9431 struct http_txn *txn;
9432 struct http_msg *msg;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9433
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9434 /* Note: it is possible that <s> is NULL when called before stream
9435 * initialization (eg: tcp-request connection), so this function is the
9436 * one responsible for guarding against this case for all HTTP users.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9437 */
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9438 if (!s)
9439 return 0;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9440
Thierry FOURNIERed08d6a2015-09-24 08:40:18 +0200[diff] [blame]9441 if (!s->txn) {
9442 if (unlikely(!http_alloc_txn(s)))
9443 return 0; /* not enough memory */
9444 http_init_txn(s);
9445 }
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9446 txn = s->txn;
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9447 msg = &txn->req;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9448
9449 /* Check for a dependency on a request */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9450 smp->data.type = SMP_T_BOOL;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9451
Willy Tarreau32a6f2e2012-04-25 10:13:36 +0200[diff] [blame]9452 if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9453 /* If the buffer does not leave enough free space at the end,
9454 * we must first realign it.
9455 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9456 if (s->req.buf->p > s->req.buf->data &&
9457 s->req.buf->i + s->req.buf->p > s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)
9458 buffer_slow_realign(s->req.buf);
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9459
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9460 if (unlikely(txn->req.msg_state < HTTP_MSG_BODY)) {
Willy Tarreau472b1ee2013-10-14 22:41:30 +0200[diff] [blame]9461 if (msg->msg_state == HTTP_MSG_ERROR)
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9462 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9463
9464 /* Try to decode HTTP request */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9465 if (likely(msg->next < s->req.buf->i))
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9466 http_msg_analyzer(msg, &txn->hdr_idx);
9467
9468 /* Still no valid request ? */
9469 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau3bf1b2b2012-08-27 20:46:07 +0200[diff] [blame]9470 if ((msg->msg_state == HTTP_MSG_ERROR) ||
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9471 buffer_full(s->req.buf, global.tune.maxrewrite)) {
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9472 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9473 }
9474 /* wait for final state */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9475 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9476 return 0;
9477 }
9478
9479 /* OK we just got a valid HTTP request. We have some minor
9480 * preparation to perform so that further checks can rely
9481 * on HTTP tests.
9482 */
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9483
9484 /* If the request was parsed but was too large, we must absolutely
9485 * return an error so that it is not processed. At the moment this
9486 * cannot happen, but if the parsers are to change in the future,
9487 * we want this check to be maintained.
9488 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9489 if (unlikely(s->req.buf->i + s->req.buf->p >
9490 s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]9491 msg->err_state = msg->msg_state;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9492 msg->msg_state = HTTP_MSG_ERROR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9493 smp->data.u.sint = 1;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9494 return 1;
9495 }
9496
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9497 txn->meth = find_http_meth(msg->chn->buf->p, msg->sl.rq.m_l);
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9498 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]9499 s->flags |= SF_REDIRECTABLE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9500
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9501 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
9502 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9503 }
9504
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9505 if (req_vol && txn->rsp.msg_state != HTTP_MSG_RPBEFORE) {
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9506 return 0; /* data might have moved and indexes changed */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9507 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9508
9509 /* otherwise everything's ready for the request */
9510 }
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9511 else {
9512 /* Check for a dependency on a response */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9513 if (txn->rsp.msg_state < HTTP_MSG_BODY) {
9514 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9515 return 0;
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9516 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9517 }
9518
9519 /* everything's OK */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9520 smp->data.u.sint = 1;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9521 return 1;
9522}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9523
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9524/* 1. Check on METHOD
9525 * We use the pre-parsed method if it is known, and store its number as an
9526 * integer. If it is unknown, we use the pointer and the length.
9527 */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9528static int pat_parse_meth(const char *text, struct pattern *pattern, int mflags, char **err)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9529{
9530 int len, meth;
9531
Thierry FOURNIER580c32c2014-01-24 10:58:12 +0100[diff] [blame]9532 len = strlen(text);
9533 meth = find_http_meth(text, len);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9534
9535 pattern->val.i = meth;
9536 if (meth == HTTP_METH_OTHER) {
Willy Tarreau912c1192014-08-29 15:15:50 +0200[diff] [blame]9537 pattern->ptr.str = (char *)text;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9538 pattern->len = len;
9539 }
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9540 else {
9541 pattern->ptr.str = NULL;
9542 pattern->len = 0;
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9543 }
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9544 return 1;
9545}
9546
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9547/* This function fetches the method of current HTTP request and stores
9548 * it in the global pattern struct as a chunk. There are two possibilities :
9549 * - if the method is known (not HTTP_METH_OTHER), its identifier is stored
9550 * in <len> and <ptr> is NULL ;
9551 * - if the method is unknown (HTTP_METH_OTHER), <ptr> points to the text and
9552 * <len> to its length.
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]9553 * This is intended to be used with pat_match_meth() only.
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9554 */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9555static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9556smp_fetch_meth(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9557{
9558 int meth;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9559 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9560
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9561 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9562
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9563 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9564 meth = txn->meth;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9565 smp->data.type = SMP_T_METH;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9566 smp->data.u.meth.meth = meth;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9567 if (meth == HTTP_METH_OTHER) {
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9568 if (txn->rsp.msg_state != HTTP_MSG_RPBEFORE)
9569 /* ensure the indexes are not affected */
9570 return 0;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9571 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9572 smp->data.u.meth.str.len = txn->req.sl.rq.m_l;
9573 smp->data.u.meth.str.str = txn->req.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9574 }
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9575 smp->flags |= SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9576 return 1;
9577}
9578
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9579/* See above how the method is stored in the global pattern */
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9580static struct pattern *pat_match_meth(struct sample *smp, struct pattern_expr *expr, int fill)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9581{
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9582 int icase;
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9583 struct pattern_list *lst;
9584 struct pattern *pattern;
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9585
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9586 list_for_each_entry(lst, &expr->patterns, list) {
9587 pattern = &lst->pat;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9588
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9589 /* well-known method */
9590 if (pattern->val.i != HTTP_METH_OTHER) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9591 if (smp->data.u.meth.meth == pattern->val.i)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9592 return pattern;
9593 else
9594 continue;
9595 }
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9596
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9597 /* Other method, we must compare the strings */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9598 if (pattern->len != smp->data.u.meth.str.len)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9599 continue;
9600
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9601 icase = expr->mflags & PAT_MF_IGNORE_CASE;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9602 if ((icase && strncasecmp(pattern->ptr.str, smp->data.u.meth.str.str, smp->data.u.meth.str.len) == 0) ||
9603 (!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]9604 return pattern;
9605 }
9606 return NULL;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9607}
9608
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9609static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9610smp_fetch_rqver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9611{
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9612 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9613 char *ptr;
9614 int len;
9615
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9616 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9617
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9618 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9619 len = txn->req.sl.rq.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9620 ptr = txn->req.chn->buf->p + txn->req.sl.rq.v;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9621
9622 while ((len-- > 0) && (*ptr++ != '/'));
9623 if (len <= 0)
9624 return 0;
9625
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9626 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9627 smp->data.u.str.str = ptr;
9628 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9629
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9630 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9631 return 1;
9632}
9633
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9634static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9635smp_fetch_stver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9636{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9637 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9638 char *ptr;
9639 int len;
9640
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9641 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9642
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9643 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9644 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9645 return 0;
9646
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9647 len = txn->rsp.sl.st.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9648 ptr = txn->rsp.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9649
9650 while ((len-- > 0) && (*ptr++ != '/'));
9651 if (len <= 0)
9652 return 0;
9653
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9654 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9655 smp->data.u.str.str = ptr;
9656 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9657
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9658 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9659 return 1;
9660}
9661
9662/* 3. Check on Status Code. We manipulate integers here. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9663static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9664smp_fetch_stcode(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9665{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9666 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9667 char *ptr;
9668 int len;
9669
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9670 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9671
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9672 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9673 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9674 return 0;
9675
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9676 len = txn->rsp.sl.st.c_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9677 ptr = txn->rsp.chn->buf->p + txn->rsp.sl.st.c;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9678
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9679 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9680 smp->data.u.sint = __strl2ui(ptr, len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9681 smp->flags = SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9682 return 1;
9683}
9684
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9685static int
9686smp_fetch_uniqueid(const struct arg *args, struct sample *smp, const char *kw, void *private)
9687{
9688 if (LIST_ISEMPTY(&smp->sess->fe->format_unique_id))
9689 return 0;
9690
9691 if (!smp->strm->unique_id) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]9692 if ((smp->strm->unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9693 return 0;
9694 smp->strm->unique_id[0] = '\0';
9695 }
9696 smp->data.u.str.len = build_logline(smp->strm, smp->strm->unique_id,
9697 UNIQUEID_LEN, &smp->sess->fe->format_unique_id);
9698
9699 smp->data.type = SMP_T_STR;
9700 smp->data.u.str.str = smp->strm->unique_id;
9701 smp->flags = SMP_F_CONST;
9702 return 1;
9703}
9704
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]9705/* Returns a string block containing all headers including the
9706 * empty line wich separes headers from the body. This is useful
9707 * form some headers analysis.
9708 */
9709static int
9710smp_fetch_hdrs(const struct arg *args, struct sample *smp, const char *kw, void *private)
9711{
9712 struct http_msg *msg;
9713 struct hdr_idx *idx;
9714 struct http_txn *txn;
9715
9716 CHECK_HTTP_MESSAGE_FIRST();
9717
9718 txn = smp->strm->txn;
9719 idx = &txn->hdr_idx;
9720 msg = &txn->req;
9721
9722 smp->data.type = SMP_T_STR;
9723 smp->data.u.str.str = msg->chn->buf->p + hdr_idx_first_pos(idx);
9724 smp->data.u.str.len = msg->eoh - hdr_idx_first_pos(idx) + 1 +
9725 (msg->chn->buf->p[msg->eoh] == '\r');
9726
9727 return 1;
9728}
9729
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9730/* Returns the header request in a length/value encoded format.
9731 * This is useful for exchanges with the SPOE.
9732 *
9733 * A "length value" is a multibyte code encoding numbers. It uses the
9734 * SPOE format. The encoding is the following:
9735 *
9736 * Each couple "header name" / "header value" is composed
9737 * like this:
9738 * "length value" "header name bytes"
9739 * "length value" "header value bytes"
9740 * When the last header is reached, the header name and the header
9741 * value are empty. Their length are 0
9742 */
9743static int
9744smp_fetch_hdrs_bin(const struct arg *args, struct sample *smp, const char *kw, void *private)
9745{
9746 struct http_msg *msg;
9747 struct chunk *temp;
9748 struct hdr_idx *idx;
9749 const char *cur_ptr, *cur_next, *p;
9750 int old_idx, cur_idx;
9751 struct hdr_idx_elem *cur_hdr;
9752 const char *hn, *hv;
9753 int hnl, hvl;
9754 int ret;
9755 struct http_txn *txn;
9756 char *buf;
9757 char *end;
9758
9759 CHECK_HTTP_MESSAGE_FIRST();
9760
9761 temp = get_trash_chunk();
9762 buf = temp->str;
9763 end = temp->str + temp->size;
9764
9765 txn = smp->strm->txn;
9766 idx = &txn->hdr_idx;
9767 msg = &txn->req;
9768
9769 /* Build array of headers. */
9770 old_idx = 0;
9771 cur_next = msg->chn->buf->p + hdr_idx_first_pos(idx);
9772 while (1) {
9773 cur_idx = idx->v[old_idx].next;
9774 if (!cur_idx)
9775 break;
9776 old_idx = cur_idx;
9777
9778 cur_hdr = &idx->v[cur_idx];
9779 cur_ptr = cur_next;
9780 cur_next = cur_ptr + cur_hdr->len + cur_hdr->cr + 1;
9781
9782 /* Now we have one full header at cur_ptr of len cur_hdr->len,
9783 * and the next header starts at cur_next. We'll check
9784 * this header in the list as well as against the default
9785 * rule.
9786 */
9787
9788 /* look for ': *'. */
9789 hn = cur_ptr;
9790 for (p = cur_ptr; p < cur_ptr + cur_hdr->len && *p != ':'; p++);
9791 if (p >= cur_ptr+cur_hdr->len)
9792 continue;
9793 hnl = p - hn;
9794 p++;
9795 while (p < cur_ptr + cur_hdr->len && (*p == ' ' || *p == '\t'))
9796 p++;
9797 if (p >= cur_ptr + cur_hdr->len)
9798 continue;
9799 hv = p;
9800 hvl = cur_ptr + cur_hdr->len-p;
9801
9802 /* encode the header name. */
9803 ret = encode_varint(hnl, &buf, end);
9804 if (ret == -1)
9805 return 0;
9806 if (buf + hnl > end)
9807 return 0;
9808 memcpy(buf, hn, hnl);
9809 buf += hnl;
9810
9811 /* encode and copy the value. */
9812 ret = encode_varint(hvl, &buf, end);
9813 if (ret == -1)
9814 return 0;
9815 if (buf + hvl > end)
9816 return 0;
9817 memcpy(buf, hv, hvl);
9818 buf += hvl;
9819 }
9820
9821 /* encode the end of the header list with empty
9822 * header name and header value.
9823 */
9824 ret = encode_varint(0, &buf, end);
9825 if (ret == -1)
9826 return 0;
9827 ret = encode_varint(0, &buf, end);
9828 if (ret == -1)
9829 return 0;
9830
9831 /* Initialise sample data which will be filled. */
9832 smp->data.type = SMP_T_BIN;
9833 smp->data.u.str.str = temp->str;
9834 smp->data.u.str.len = buf - temp->str;
9835 smp->data.u.str.size = temp->size;
9836
9837 return 1;
9838}
9839
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9840/* returns the longest available part of the body. This requires that the body
9841 * has been waited for using http-buffer-request.
9842 */
9843static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9844smp_fetch_body(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9845{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9846 struct http_msg *msg;
9847 unsigned long len;
9848 unsigned long block1;
9849 char *body;
9850 struct chunk *temp;
9851
9852 CHECK_HTTP_MESSAGE_FIRST();
9853
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9854 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9855 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9856 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9857 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9858
9859 len = http_body_bytes(msg);
9860 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
9861
9862 block1 = len;
9863 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
9864 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
9865
9866 if (block1 == len) {
9867 /* buffer is not wrapped (or empty) */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9868 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9869 smp->data.u.str.str = body;
9870 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9871 smp->flags = SMP_F_VOL_TEST | SMP_F_CONST;
9872 }
9873 else {
9874 /* buffer is wrapped, we need to defragment it */
9875 temp = get_trash_chunk();
9876 memcpy(temp->str, body, block1);
9877 memcpy(temp->str + block1, msg->chn->buf->data, len - block1);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9878 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9879 smp->data.u.str.str = temp->str;
9880 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9881 smp->flags = SMP_F_VOL_TEST;
9882 }
9883 return 1;
9884}
9885
9886
9887/* returns the available length of the body. This requires that the body
9888 * has been waited for using http-buffer-request.
9889 */
9890static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9891smp_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]9892{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9893 struct http_msg *msg;
9894
9895 CHECK_HTTP_MESSAGE_FIRST();
9896
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9897 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9898 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9899 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9900 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9901
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9902 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9903 smp->data.u.sint = http_body_bytes(msg);
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9904
9905 smp->flags = SMP_F_VOL_TEST;
9906 return 1;
9907}
9908
9909
9910/* returns the advertised length of the body, or the advertised size of the
9911 * chunks available in the buffer. This requires that the body has been waited
9912 * for using http-buffer-request.
9913 */
9914static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9915smp_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]9916{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9917 struct http_msg *msg;
9918
9919 CHECK_HTTP_MESSAGE_FIRST();
9920
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9921 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9922 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9923 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9924 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9925
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9926 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9927 smp->data.u.sint = msg->body_len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9928
9929 smp->flags = SMP_F_VOL_TEST;
9930 return 1;
9931}
9932
9933
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9934/* 4. Check on URL/URI. A pointer to the URI is stored. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9935static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9936smp_fetch_url(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9937{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9938 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9939
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9940 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9941
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9942 txn = smp->strm->txn;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9943 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9944 smp->data.u.str.len = txn->req.sl.rq.u_l;
9945 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]9946 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9947 return 1;
9948}
9949
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9950static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9951smp_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]9952{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9953 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]9954 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9955
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9956 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9957
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9958 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]9959 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]9960 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
Willy Tarreauf4362b32011-12-16 17:49:52 +0100[diff] [blame]9961 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9962
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9963 smp->data.type = SMP_T_IPV4;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9964 smp->data.u.ipv4 = ((struct sockaddr_in *)&addr)->sin_addr;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9965 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9966 return 1;
9967}
9968
9969static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9970smp_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]9971{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9972 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]9973 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9974
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9975 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9976
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9977 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]9978 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]9979 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
9980 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9981
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9982 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9983 smp->data.u.sint = ntohs(((struct sockaddr_in *)&addr)->sin_port);
Willy Tarreau21e5b0e2012-04-23 19:25:44 +0200[diff] [blame]9984 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9985 return 1;
9986}
9987
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9988/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
9989 * Accepts an optional argument of type string containing the header field name,
9990 * and an optional argument of type signed or unsigned integer to request an
9991 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9992 * headers are considered from the first one. It does not stop on commas and
9993 * returns full lines instead (useful for User-Agent or Date for example).
9994 */
9995static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9996smp_fetch_fhdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9997{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9998 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9999 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10000 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10001 int occ = 0;
10002 const char *name_str = NULL;
10003 int name_len = 0;
10004
10005 if (!ctx) {
10006 /* first call */
10007 ctx = &static_hdr_ctx;
10008 ctx->idx = 0;
10009 smp->ctx.a[0] = ctx;
10010 }
10011
10012 if (args) {
10013 if (args[0].type != ARGT_STR)
10014 return 0;
10015 name_str = args[0].data.str.str;
10016 name_len = args[0].data.str.len;
10017
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10018 if (args[1].type == ARGT_SINT)
10019 occ = args[1].data.sint;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10020 }
10021
10022 CHECK_HTTP_MESSAGE_FIRST();
10023
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10024 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10025 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]10026
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10027 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
10028 /* search for header from the beginning */
10029 ctx->idx = 0;
10030
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10031 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10032 /* no explicit occurrence and single fetch => last header by default */
10033 occ = -1;
10034
10035 if (!occ)
10036 /* prepare to report multiple occurrences for ACL fetches */
10037 smp->flags |= SMP_F_NOT_LAST;
10038
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10039 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10040 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10041 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]10042 return 1;
10043
10044 smp->flags &= ~SMP_F_NOT_LAST;
10045 return 0;
10046}
10047
10048/* 6. Check on HTTP header count. The number of occurrences is returned.
10049 * Accepts exactly 1 argument of type string. It does not stop on commas and
10050 * returns full lines instead (useful for User-Agent or Date for example).
10051 */
10052static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10053smp_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]10054{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10055 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10056 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10057 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10058 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10059 const char *name = NULL;
10060 int len = 0;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10061
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10062 if (args && args->type == ARGT_STR) {
10063 name = args->data.str.str;
10064 len = args->data.str.len;
10065 }
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10066
10067 CHECK_HTTP_MESSAGE_FIRST();
10068
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10069 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10070 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]10071
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10072 ctx.idx = 0;
10073 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10074 while (http_find_full_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10075 cnt++;
10076
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10077 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10078 smp->data.u.sint = cnt;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10079 smp->flags = SMP_F_VOL_HDR;
10080 return 1;
10081}
10082
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10083static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10084smp_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]10085{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10086 struct hdr_idx *idx;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10087 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10088 const struct http_msg *msg;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10089 struct chunk *temp;
10090 char del = ',';
10091
10092 if (args && args->type == ARGT_STR)
10093 del = *args[0].data.str.str;
10094
10095 CHECK_HTTP_MESSAGE_FIRST();
10096
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10097 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10098 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]10099
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10100 temp = get_trash_chunk();
10101
10102 ctx.idx = 0;
10103 while (http_find_next_header(msg->chn->buf->p, idx, &ctx)) {
10104 if (temp->len)
10105 temp->str[temp->len++] = del;
10106 memcpy(temp->str + temp->len, ctx.line, ctx.del);
10107 temp->len += ctx.del;
10108 }
10109
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10110 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10111 smp->data.u.str.str = temp->str;
10112 smp->data.u.str.len = temp->len;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10113 smp->flags = SMP_F_VOL_HDR;
10114 return 1;
10115}
10116
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10117/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
10118 * Accepts an optional argument of type string containing the header field name,
10119 * and an optional argument of type signed or unsigned integer to request an
10120 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10121 * headers are considered from the first one.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10122 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10123static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10124smp_fetch_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10125{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10126 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10127 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10128 const struct http_msg *msg;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10129 int occ = 0;
10130 const char *name_str = NULL;
10131 int name_len = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10132
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10133 if (!ctx) {
10134 /* first call */
10135 ctx = &static_hdr_ctx;
10136 ctx->idx = 0;
Willy Tarreauffb6f082013-04-02 23:16:53 +0200[diff] [blame]10137 smp->ctx.a[0] = ctx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10138 }
10139
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10140 if (args) {
10141 if (args[0].type != ARGT_STR)
10142 return 0;
10143 name_str = args[0].data.str.str;
10144 name_len = args[0].data.str.len;
10145
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10146 if (args[1].type == ARGT_SINT)
10147 occ = args[1].data.sint;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10148 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10149
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10150 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10151
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10152 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10153 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]10154
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10155 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10156 /* search for header from the beginning */
10157 ctx->idx = 0;
10158
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10159 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10160 /* no explicit occurrence and single fetch => last header by default */
10161 occ = -1;
10162
10163 if (!occ)
10164 /* prepare to report multiple occurrences for ACL fetches */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10165 smp->flags |= SMP_F_NOT_LAST;
Willy Tarreau664092c2011-12-16 19:11:42 +0100[diff] [blame]10166
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10167 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10168 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10169 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]10170 return 1;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10171
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10172 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10173 return 0;
10174}
10175
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10176/* 6. Check on HTTP header count. The number of occurrences is returned.
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10177 * Accepts exactly 1 argument of type string.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10178 */
10179static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10180smp_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]10181{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10182 struct hdr_idx *idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10183 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10184 const struct http_msg *msg;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10185 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10186 const char *name = NULL;
10187 int len = 0;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10188
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10189 if (args && args->type == ARGT_STR) {
10190 name = args->data.str.str;
10191 len = args->data.str.len;
10192 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10193
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10194 CHECK_HTTP_MESSAGE_FIRST();
10195
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10196 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10197 msg = ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) ? &smp->strm->txn->req : &smp->strm->txn->rsp;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10198
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10199 ctx.idx = 0;
10200 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10201 while (http_find_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10202 cnt++;
10203
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10204 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10205 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10206 smp->flags = SMP_F_VOL_HDR;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10207 return 1;
10208}
10209
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10210/* Fetch an HTTP header's integer value. The integer value is returned. It
10211 * takes a mandatory argument of type string and an optional one of type int
10212 * to designate a specific occurrence. It returns an unsigned integer, which
10213 * may or may not be appropriate for everything.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10214 */
10215static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10216smp_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]10217{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10218 int ret = smp_fetch_hdr(args, smp, kw, private);
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10219
Willy Tarreauf853c462012-04-23 18:53:56 +0200[diff] [blame]10220 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10221 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10222 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]10223 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10224
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10225 return ret;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10226}
10227
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10228/* Fetch an HTTP header's IP value. takes a mandatory argument of type string
10229 * and an optional one of type int to designate a specific occurrence.
10230 * It returns an IPv4 or IPv6 address.
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10231 */
10232static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10233smp_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]10234{
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10235 int ret;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10236
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10237 while ((ret = smp_fetch_hdr(args, smp, kw, private)) > 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10238 if (url2ipv4((char *)smp->data.u.str.str, &smp->data.u.ipv4)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10239 smp->data.type = SMP_T_IPV4;
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10240 break;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10241 } else {
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10242 struct chunk *temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10243 if (smp->data.u.str.len < temp->size - 1) {
10244 memcpy(temp->str, smp->data.u.str.str, smp->data.u.str.len);
10245 temp->str[smp->data.u.str.len] = '\0';
10246 if (inet_pton(AF_INET6, temp->str, &smp->data.u.ipv6)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10247 smp->data.type = SMP_T_IPV6;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10248 break;
10249 }
10250 }
10251 }
10252
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10253 /* if the header doesn't match an IP address, fetch next one */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10254 if (!(smp->flags & SMP_F_NOT_LAST))
10255 return 0;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10256 }
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10257 return ret;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10258}
10259
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10260/* 8. Check on URI PATH. A pointer to the PATH is stored. The path starts at
10261 * the first '/' after the possible hostname, and ends before the possible '?'.
10262 */
10263static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10264smp_fetch_path(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10265{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10266 struct http_txn *txn;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10267 char *ptr, *end;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10268
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10269 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10270
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10271 txn = smp->strm->txn;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10272 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]10273 ptr = http_get_path(txn);
10274 if (!ptr)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10275 return 0;
10276
10277 /* OK, we got the '/' ! */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10278 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10279 smp->data.u.str.str = ptr;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10280
10281 while (ptr < end && *ptr != '?')
10282 ptr++;
10283
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10284 smp->data.u.str.len = ptr - smp->data.u.str.str;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10285 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10286 return 1;
10287}
10288
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10289/* This produces a concatenation of the first occurrence of the Host header
10290 * followed by the path component if it begins with a slash ('/'). This means
10291 * that '*' will not be added, resulting in exactly the first Host entry.
10292 * If no Host header is found, then the path is returned as-is. The returned
10293 * 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]10294 * The returned sample is of type string.
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10295 */
10296static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10297smp_fetch_base(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10298{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10299 struct http_txn *txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10300 char *ptr, *end, *beg;
10301 struct hdr_ctx ctx;
Willy Tarreau3caf2af2014-06-24 17:27:02 +0200[diff] [blame]10302 struct chunk *temp;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10303
10304 CHECK_HTTP_MESSAGE_FIRST();
10305
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10306 txn = smp->strm->txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10307 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10308 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]10309 return smp_fetch_path(args, smp, kw, private);
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10310
10311 /* 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]10312 temp = get_trash_chunk();
10313 memcpy(temp->str, ctx.line + ctx.val, ctx.vlen);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10314 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10315 smp->data.u.str.str = temp->str;
10316 smp->data.u.str.len = ctx.vlen;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10317
10318 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10319 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]10320 beg = http_get_path(txn);
10321 if (!beg)
10322 beg = end;
10323
10324 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10325
10326 if (beg < ptr && *beg == '/') {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10327 memcpy(smp->data.u.str.str + smp->data.u.str.len, beg, ptr - beg);
10328 smp->data.u.str.len += ptr - beg;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10329 }
10330
10331 smp->flags = SMP_F_VOL_1ST;
10332 return 1;
10333}
10334
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10335/* This produces a 32-bit hash of the concatenation of the first occurrence of
10336 * the Host header followed by the path component if it begins with a slash ('/').
10337 * This means that '*' will not be added, resulting in exactly the first Host
10338 * 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]10339 * is hashed using the path hash followed by a full avalanche hash and provides a
10340 * 32-bit integer value. This fetch is useful for tracking per-path activity on
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10341 * high-traffic sites without having to store whole paths.
10342 */
Thierry FOURNIER055b9d52014-07-15 16:11:07 +0200[diff] [blame]10343int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10344smp_fetch_base32(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10345{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10346 struct http_txn *txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10347 struct hdr_ctx ctx;
10348 unsigned int hash = 0;
10349 char *ptr, *beg, *end;
10350 int len;
10351
10352 CHECK_HTTP_MESSAGE_FIRST();
10353
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10354 txn = smp->strm->txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10355 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10356 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]10357 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
10358 ptr = ctx.line + ctx.val;
10359 len = ctx.vlen;
10360 while (len--)
10361 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
10362 }
10363
10364 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10365 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]10366 beg = http_get_path(txn);
10367 if (!beg)
10368 beg = end;
10369
10370 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10371
10372 if (beg < ptr && *beg == '/') {
10373 while (beg < ptr)
10374 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
10375 }
10376 hash = full_hash(hash);
10377
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10378 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10379 smp->data.u.sint = hash;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10380 smp->flags = SMP_F_VOL_1ST;
10381 return 1;
10382}
10383
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10384/* 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]10385 * path as returned by smp_fetch_base32(). The idea is to have per-source and
10386 * per-path counters. The result is a binary block from 8 to 20 bytes depending
10387 * on the source address length. The path hash is stored before the address so
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10388 * that in environments where IPv6 is insignificant, truncating the output to
10389 * 8 bytes would still work.
10390 */
10391static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10392smp_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]10393{
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10394 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10395 struct connection *cli_conn = objt_conn(smp->sess->origin);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10396
10397 if (!cli_conn)
10398 return 0;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10399
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10400 if (!smp_fetch_base32(args, smp, kw, private))
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10401 return 0;
10402
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10403 temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10404 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
Willy Tarreau5ad6e1d2014-07-15 21:34:06 +0200[diff] [blame]10405 temp->len += sizeof(unsigned int);
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10406
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10407 switch (cli_conn->addr.from.ss_family) {
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10408 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10409 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]10410 temp->len += 4;
10411 break;
10412 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10413 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]10414 temp->len += 16;
10415 break;
10416 default:
10417 return 0;
10418 }
10419
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10420 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10421 smp->data.type = SMP_T_BIN;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10422 return 1;
10423}
10424
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10425/* Extracts the query string, which comes after the question mark '?'. If no
10426 * question mark is found, nothing is returned. Otherwise it returns a sample
10427 * of type string carrying the whole query string.
10428 */
10429static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10430smp_fetch_query(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10431{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10432 struct http_txn *txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10433 char *ptr, *end;
10434
10435 CHECK_HTTP_MESSAGE_FIRST();
10436
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10437 txn = smp->strm->txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10438 ptr = txn->req.chn->buf->p + txn->req.sl.rq.u;
10439 end = ptr + txn->req.sl.rq.u_l;
10440
10441 /* look up the '?' */
10442 do {
10443 if (ptr == end)
10444 return 0;
10445 } while (*ptr++ != '?');
10446
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10447 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10448 smp->data.u.str.str = ptr;
10449 smp->data.u.str.len = end - ptr;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10450 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
10451 return 1;
10452}
10453
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10454static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10455smp_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]10456{
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10457 /* Note: hdr_idx.v cannot be NULL in this ACL because the ACL is tagged
10458 * as a layer7 ACL, which involves automatic allocation of hdr_idx.
10459 */
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10460
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10461 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10462
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10463 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10464 smp->data.u.sint = 1;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10465 return 1;
10466}
10467
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10468/* return a valid test if the current request is the first one on the connection */
10469static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10470smp_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]10471{
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10472 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10473 smp->data.u.sint = !(smp->strm->txn->flags & TX_NOT_FIRST);
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10474 return 1;
10475}
10476
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10477/* Accepts exactly 1 argument of type userlist */
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10478static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10479smp_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]10480{
10481
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10482 if (!args || args->type != ARGT_USR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10483 return 0;
10484
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10485 CHECK_HTTP_MESSAGE_FIRST();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10486
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10487 if (!get_http_auth(smp->strm))
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10488 return 0;
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 = check_user(args->data.usr, smp->strm->txn->auth.user,
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10492 smp->strm->txn->auth.pass);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10493 return 1;
10494}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10495
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10496/* Accepts exactly 1 argument of type userlist */
10497static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10498smp_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]10499{
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10500 if (!args || args->type != ARGT_USR)
10501 return 0;
10502
10503 CHECK_HTTP_MESSAGE_FIRST();
10504
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10505 if (!get_http_auth(smp->strm))
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10506 return 0;
10507
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10508 /* if the user does not belong to the userlist or has a wrong password,
10509 * report that it unconditionally does not match. Otherwise we return
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10510 * a string containing the username.
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10511 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10512 if (!check_user(args->data.usr, smp->strm->txn->auth.user,
10513 smp->strm->txn->auth.pass))
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10514 return 0;
10515
10516 /* pat_match_auth() will need the user list */
10517 smp->ctx.a[0] = args->data.usr;
10518
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10519 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10520 smp->flags = SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10521 smp->data.u.str.str = smp->strm->txn->auth.user;
10522 smp->data.u.str.len = strlen(smp->strm->txn->auth.user);
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10523
10524 return 1;
10525}
10526
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10527/* Try to find the next occurrence of a cookie name in a cookie header value.
10528 * The lookup begins at <hdr>. The pointer and size of the next occurrence of
10529 * the cookie value is returned into *value and *value_l, and the function
10530 * returns a pointer to the next pointer to search from if the value was found.
10531 * Otherwise if the cookie was not found, NULL is returned and neither value
10532 * nor value_l are touched. The input <hdr> string should first point to the
10533 * header's value, and the <hdr_end> pointer must point to the first character
10534 * not part of the value. <list> must be non-zero if value may represent a list
10535 * of values (cookie headers). This makes it faster to abort parsing when no
10536 * list is expected.
10537 */
David Carlier4686f792015-09-25 14:10:50 +0100[diff] [blame]10538char *
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10539extract_cookie_value(char *hdr, const char *hdr_end,
10540 char *cookie_name, size_t cookie_name_l, int list,
Willy Tarreau3fb818c2012-04-11 17:21:08 +0200[diff] [blame]10541 char **value, int *value_l)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10542{
10543 char *equal, *att_end, *att_beg, *val_beg, *val_end;
10544 char *next;
10545
10546 /* we search at least a cookie name followed by an equal, and more
10547 * generally something like this :
10548 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
10549 */
10550 for (att_beg = hdr; att_beg + cookie_name_l + 1 < hdr_end; att_beg = next + 1) {
10551 /* Iterate through all cookies on this line */
10552
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10553 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10554 att_beg++;
10555
10556 /* find att_end : this is the first character after the last non
10557 * space before the equal. It may be equal to hdr_end.
10558 */
10559 equal = att_end = att_beg;
10560
10561 while (equal < hdr_end) {
10562 if (*equal == '=' || *equal == ';' || (list && *equal == ','))
10563 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10564 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10565 continue;
10566 att_end = equal;
10567 }
10568
10569 /* here, <equal> points to '=', a delimitor or the end. <att_end>
10570 * is between <att_beg> and <equal>, both may be identical.
10571 */
10572
10573 /* look for end of cookie if there is an equal sign */
10574 if (equal < hdr_end && *equal == '=') {
10575 /* look for the beginning of the value */
10576 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10577 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10578 val_beg++;
10579
10580 /* find the end of the value, respecting quotes */
10581 next = find_cookie_value_end(val_beg, hdr_end);
10582
10583 /* make val_end point to the first white space or delimitor after the value */
10584 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10585 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10586 val_end--;
10587 } else {
10588 val_beg = val_end = next = equal;
10589 }
10590
10591 /* We have nothing to do with attributes beginning with '$'. However,
10592 * they will automatically be removed if a header before them is removed,
10593 * since they're supposed to be linked together.
10594 */
10595 if (*att_beg == '$')
10596 continue;
10597
10598 /* Ignore cookies with no equal sign */
10599 if (equal == next)
10600 continue;
10601
10602 /* Now we have the cookie name between att_beg and att_end, and
10603 * its value between val_beg and val_end.
10604 */
10605
10606 if (att_end - att_beg == cookie_name_l &&
10607 memcmp(att_beg, cookie_name, cookie_name_l) == 0) {
10608 /* let's return this value and indicate where to go on from */
10609 *value = val_beg;
10610 *value_l = val_end - val_beg;
10611 return next + 1;
10612 }
10613
10614 /* Set-Cookie headers only have the name in the first attr=value part */
10615 if (!list)
10616 break;
10617 }
10618
10619 return NULL;
10620}
10621
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10622/* Fetch a captured HTTP request header. The index is the position of
10623 * the "capture" option in the configuration file
10624 */
10625static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10626smp_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]10627{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10628 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10629 int idx;
10630
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10631 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10632 return 0;
10633
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10634 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10635
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10636 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]10637 return 0;
10638
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10639 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10640 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10641 smp->data.u.str.str = smp->strm->req_cap[idx];
10642 smp->data.u.str.len = strlen(smp->strm->req_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10643
10644 return 1;
10645}
10646
10647/* Fetch a captured HTTP response header. The index is the position of
10648 * the "capture" option in the configuration file
10649 */
10650static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10651smp_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]10652{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10653 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10654 int idx;
10655
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10656 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10657 return 0;
10658
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10659 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10660
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10661 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]10662 return 0;
10663
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10664 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10665 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10666 smp->data.u.str.str = smp->strm->res_cap[idx];
10667 smp->data.u.str.len = strlen(smp->strm->res_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10668
10669 return 1;
10670}
10671
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10672/* Extracts the METHOD in the HTTP request, the txn->uri should be filled before the call */
10673static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10674smp_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]10675{
10676 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10677 struct http_txn *txn = smp->strm->txn;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10678 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10679
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10680 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10681 return 0;
10682
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10683 ptr = txn->uri;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10684
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10685 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10686 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10687
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10688 temp = get_trash_chunk();
10689 temp->str = txn->uri;
10690 temp->len = ptr - txn->uri;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10691 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10692 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10693 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10694
10695 return 1;
10696
10697}
10698
10699/* Extracts the path in the HTTP request, the txn->uri should be filled before the call */
10700static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10701smp_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]10702{
10703 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10704 struct http_txn *txn = smp->strm->txn;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10705 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10706
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10707 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10708 return 0;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10709
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10710 ptr = txn->uri;
10711
10712 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10713 ptr++;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10714
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10715 if (!*ptr)
10716 return 0;
10717
10718 ptr++; /* skip the space */
10719
10720 temp = get_trash_chunk();
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10721 ptr = temp->str = http_get_path_from_string(ptr);
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10722 if (!ptr)
10723 return 0;
10724 while (*ptr != ' ' && *ptr != '\0') /* find space after URI */
10725 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10726
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10727 smp->data.u.str = *temp;
10728 smp->data.u.str.len = ptr - temp->str;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10729 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10730 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10731
10732 return 1;
10733}
10734
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10735/* Retrieves the HTTP version from the request (either 1.0 or 1.1) and emits it
10736 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10737 */
10738static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10739smp_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]10740{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10741 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10742
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10743 if (!txn || txn->req.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10744 return 0;
10745
10746 if (txn->req.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10747 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10748 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10749 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10750
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10751 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10752 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10753 smp->flags = SMP_F_CONST;
10754 return 1;
10755
10756}
10757
10758/* Retrieves the HTTP version from the response (either 1.0 or 1.1) and emits it
10759 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10760 */
10761static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10762smp_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]10763{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10764 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10765
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10766 if (!txn || txn->rsp.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10767 return 0;
10768
10769 if (txn->rsp.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10770 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10771 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10772 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10773
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10774 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10775 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10776 smp->flags = SMP_F_CONST;
10777 return 1;
10778
10779}
10780
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10781
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10782/* Iterate over all cookies present in a message. The context is stored in
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10783 * 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]10784 * 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]10785 * the direction, multiple cookies may be parsed on the same line or not.
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10786 * 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]10787 * Accepts exactly 1 argument of type string. If the input options indicate
10788 * that no iterating is desired, then only last value is fetched if any.
William Lallemand07c8b242014-05-02 17:11:07 +0200[diff] [blame]10789 * The returned sample is of type CSTR. Can be used to parse cookies in other
10790 * files.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10791 */
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10792int 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]10793{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10794 struct http_txn *txn;
10795 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10796 struct hdr_ctx *ctx = smp->ctx.a[2];
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10797 const struct http_msg *msg;
10798 const char *hdr_name;
10799 int hdr_name_len;
10800 char *sol;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10801 int occ = 0;
10802 int found = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10803
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10804 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10805 return 0;
10806
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10807 if (!ctx) {
10808 /* first call */
10809 ctx = &static_hdr_ctx;
10810 ctx->idx = 0;
10811 smp->ctx.a[2] = ctx;
10812 }
10813
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10814 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10815
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10816 txn = smp->strm->txn;
10817 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10818
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10819 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10820 msg = &txn->req;
10821 hdr_name = "Cookie";
10822 hdr_name_len = 6;
10823 } else {
10824 msg = &txn->rsp;
10825 hdr_name = "Set-Cookie";
10826 hdr_name_len = 10;
10827 }
10828
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10829 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10830 /* no explicit occurrence and single fetch => last cookie by default */
10831 occ = -1;
10832
10833 /* OK so basically here, either we want only one value and it's the
10834 * last one, or we want to iterate over all of them and we fetch the
10835 * next one.
10836 */
10837
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10838 sol = msg->chn->buf->p;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10839 if (!(smp->flags & SMP_F_NOT_LAST)) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10840 /* search for the header from the beginning, we must first initialize
10841 * the search parameters.
10842 */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10843 smp->ctx.a[0] = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10844 ctx->idx = 0;
10845 }
10846
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10847 smp->flags |= SMP_F_VOL_HDR;
10848
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10849 while (1) {
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10850 /* Note: smp->ctx.a[0] == NULL every time we need to fetch a new header */
10851 if (!smp->ctx.a[0]) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10852 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, ctx))
10853 goto out;
10854
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10855 if (ctx->vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10856 continue;
10857
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10858 smp->ctx.a[0] = ctx->line + ctx->val;
10859 smp->ctx.a[1] = smp->ctx.a[0] + ctx->vlen;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10860 }
10861
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10862 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10863 smp->flags |= SMP_F_CONST;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10864 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]10865 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10866 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10867 &smp->data.u.str.str,
10868 &smp->data.u.str.len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10869 if (smp->ctx.a[0]) {
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10870 found = 1;
10871 if (occ >= 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10872 /* one value was returned into smp->data.u.str.{str,len} */
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10873 smp->flags |= SMP_F_NOT_LAST;
10874 return 1;
10875 }
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10876 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10877 /* if we're looking for last occurrence, let's loop */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10878 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10879 /* all cookie headers and values were scanned. If we're looking for the
10880 * last occurrence, we may return it now.
10881 */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10882 out:
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10883 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10884 return found;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10885}
10886
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10887/* Iterate over all cookies present in a request to count how many occurrences
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10888 * 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]10889 * multiple cookies may be parsed on the same line. The returned sample is of
10890 * type UINT. Accepts exactly 1 argument of type string.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10891 */
10892static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10893smp_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]10894{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10895 struct http_txn *txn;
10896 struct hdr_idx *idx;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10897 struct hdr_ctx ctx;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10898 const struct http_msg *msg;
10899 const char *hdr_name;
10900 int hdr_name_len;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10901 int cnt;
10902 char *val_beg, *val_end;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10903 char *sol;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10904
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10905 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10906 return 0;
10907
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10908 CHECK_HTTP_MESSAGE_FIRST();
10909
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10910 txn = smp->strm->txn;
10911 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10912
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10913 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10914 msg = &txn->req;
10915 hdr_name = "Cookie";
10916 hdr_name_len = 6;
10917 } else {
10918 msg = &txn->rsp;
10919 hdr_name = "Set-Cookie";
10920 hdr_name_len = 10;
10921 }
10922
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10923 sol = msg->chn->buf->p;
Willy Tarreau46787ed2012-04-11 17:28:40 +0200[diff] [blame]10924 val_end = val_beg = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10925 ctx.idx = 0;
10926 cnt = 0;
10927
10928 while (1) {
10929 /* Note: val_beg == NULL every time we need to fetch a new header */
10930 if (!val_beg) {
10931 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, &ctx))
10932 break;
10933
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10934 if (ctx.vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10935 continue;
10936
10937 val_beg = ctx.line + ctx.val;
10938 val_end = val_beg + ctx.vlen;
10939 }
10940
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10941 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10942 smp->flags |= SMP_F_CONST;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10943 while ((val_beg = extract_cookie_value(val_beg, val_end,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10944 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10945 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10946 &smp->data.u.str.str,
10947 &smp->data.u.str.len))) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10948 cnt++;
10949 }
10950 }
10951
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10952 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10953 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10954 smp->flags |= SMP_F_VOL_HDR;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10955 return 1;
10956}
10957
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]10958/* Fetch an cookie's integer value. The integer value is returned. It
10959 * takes a mandatory argument of type string. It relies on smp_fetch_cookie().
10960 */
10961static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10962smp_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]10963{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10964 int ret = smp_fetch_cookie(args, smp, kw, private);
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]10965
10966 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10967 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10968 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]10969 }
10970
10971 return ret;
10972}
10973
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10974/************************************************************************/
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]10975/* The code below is dedicated to sample fetches */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]10976/************************************************************************/
10977
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10978/*
10979 * Given a path string and its length, find the position of beginning of the
10980 * query string. Returns NULL if no query string is found in the path.
10981 *
10982 * Example: if path = "/foo/bar/fubar?yo=mama;ye=daddy", and n = 22:
10983 *
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10984 * find_query_string(path, n, '?') points to "yo=mama;ye=daddy" string.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10985 */
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10986static inline char *find_param_list(char *path, size_t path_l, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10987{
10988 char *p;
Emeric Brun485479d2010-09-23 18:02:19 +0200[diff] [blame]10989
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10990 p = memchr(path, delim, path_l);
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10991 return p ? p + 1 : NULL;
10992}
10993
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10994static inline int is_param_delimiter(char c, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10995{
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10996 return c == '&' || c == ';' || c == delim;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10997}
10998
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10999/* after increasing a pointer value, it can exceed the first buffer
11000 * size. This function transform the value of <ptr> according with
11001 * the expected position. <chunks> is an array of the one or two
11002 * avalaible chunks. The first value is the start of the first chunk,
11003 * the second value if the end+1 of the first chunks. The third value
11004 * is NULL or the start of the second chunk and the fourth value is
11005 * the end+1 of the second chunk. The function returns 1 if does a
11006 * wrap, else returns 0.
11007 */
11008static inline int fix_pointer_if_wrap(const char **chunks, const char **ptr)
11009{
11010 if (*ptr < chunks[1])
11011 return 0;
11012 if (!chunks[2])
11013 return 0;
11014 *ptr = chunks[2] + ( *ptr - chunks[1] );
11015 return 1;
11016}
11017
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11018/*
11019 * Given a url parameter, find the starting position of the first occurence,
11020 * or NULL if the parameter is not found.
11021 *
11022 * Example: if query_string is "yo=mama;ye=daddy" and url_param_name is "ye",
11023 * the function will return query_string+8.
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11024 *
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11025 * Warning: this function returns a pointer that can point to the first chunk
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11026 * or the second chunk. The caller must be check the position before using the
11027 * result.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11028 */
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11029static const char *
11030find_url_param_pos(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11031 const char* url_param_name, size_t url_param_name_l,
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11032 char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11033{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11034 const char *pos, *last, *equal;
11035 const char **bufs = chunks;
11036 int l1, l2;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11037
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11038
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11039 pos = bufs[0];
11040 last = bufs[1];
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11041 while (pos < last) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11042 /* Check the equal. */
11043 equal = pos + url_param_name_l;
11044 if (fix_pointer_if_wrap(chunks, &equal)) {
11045 if (equal >= chunks[3])
11046 return NULL;
11047 } else {
11048 if (equal >= chunks[1])
11049 return NULL;
11050 }
11051 if (*equal == '=') {
11052 if (pos + url_param_name_l > last) {
11053 /* process wrap case, we detect a wrap. In this case, the
11054 * comparison is performed in two parts.
11055 */
11056
11057 /* This is the end, we dont have any other chunk. */
11058 if (bufs != chunks || !bufs[2])
11059 return NULL;
11060
11061 /* Compute the length of each part of the comparison. */
11062 l1 = last - pos;
11063 l2 = url_param_name_l - l1;
11064
11065 /* The second buffer is too short to contain the compared string. */
11066 if (bufs[2] + l2 > bufs[3])
11067 return NULL;
11068
11069 if (memcmp(pos, url_param_name, l1) == 0 &&
11070 memcmp(bufs[2], url_param_name+l1, l2) == 0)
11071 return pos;
11072
11073 /* Perform wrapping and jump the string who fail the comparison. */
11074 bufs += 2;
11075 pos = bufs[0] + l2;
11076 last = bufs[1];
11077
11078 } else {
11079 /* process a simple comparison. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11080 if (memcmp(pos, url_param_name, url_param_name_l) == 0)
11081 return pos;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11082 pos += url_param_name_l + 1;
11083 if (fix_pointer_if_wrap(chunks, &pos))
11084 last = bufs[2];
11085 }
11086 }
11087
11088 while (1) {
11089 /* Look for the next delimiter. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11090 while (pos < last && !is_param_delimiter(*pos, delim))
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11091 pos++;
11092 if (pos < last)
11093 break;
11094 /* process buffer wrapping. */
11095 if (bufs != chunks || !bufs[2])
11096 return NULL;
11097 bufs += 2;
11098 pos = bufs[0];
11099 last = bufs[1];
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11100 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11101 pos++;
11102 }
11103 return NULL;
11104}
11105
11106/*
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11107 * Given a url parameter name and a query string, find the next value.
11108 * An empty url_param_name matches the first available parameter.
11109 * If the parameter is found, 1 is returned and *vstart / *vend are updated to
11110 * respectively provide a pointer to the value and its end.
11111 * Otherwise, 0 is returned and vstart/vend are not modified.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11112 */
11113static int
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11114find_next_url_param(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11115 const char* url_param_name, size_t url_param_name_l,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11116 const char **vstart, const char **vend, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11117{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11118 const char *arg_start, *qs_end;
11119 const char *value_start, *value_end;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11120
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11121 arg_start = chunks[0];
11122 qs_end = chunks[1];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11123 if (url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11124 /* Looks for an argument name. */
11125 arg_start = find_url_param_pos(chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11126 url_param_name, url_param_name_l,
11127 delim);
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11128 /* Check for wrapping. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11129 if (arg_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11130 qs_end = chunks[3];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11131 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11132 if (!arg_start)
11133 return 0;
11134
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11135 if (!url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11136 while (1) {
11137 /* looks for the first argument. */
11138 value_start = memchr(arg_start, '=', qs_end - arg_start);
11139 if (!value_start) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11140 /* Check for wrapping. */
11141 if (arg_start >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11142 arg_start < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11143 chunks[2]) {
11144 arg_start = chunks[2];
11145 qs_end = chunks[3];
11146 continue;
11147 }
11148 return 0;
11149 }
11150 break;
11151 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11152 value_start++;
11153 }
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11154 else {
11155 /* Jump the argument length. */
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11156 value_start = arg_start + url_param_name_l + 1;
11157
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11158 /* Check for pointer wrapping. */
11159 if (fix_pointer_if_wrap(chunks, &value_start)) {
11160 /* Update the end pointer. */
11161 qs_end = chunks[3];
11162
11163 /* Check for overflow. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11164 if (value_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11165 return 0;
11166 }
11167 }
11168
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11169 value_end = value_start;
11170
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11171 while (1) {
11172 while ((value_end < qs_end) && !is_param_delimiter(*value_end, delim))
11173 value_end++;
11174 if (value_end < qs_end)
11175 break;
11176 /* process buffer wrapping. */
11177 if (value_end >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11178 value_end < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11179 chunks[2]) {
11180 value_end = chunks[2];
11181 qs_end = chunks[3];
11182 continue;
11183 }
11184 break;
11185 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11186
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11187 *vstart = value_start;
11188 *vend = value_end;
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11189 return 1;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11190}
11191
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11192/* This scans a URL-encoded query string. It takes an optionally wrapping
11193 * string whose first contigous chunk has its beginning in ctx->a[0] and end
11194 * in ctx->a[1], and the optional second part in (ctx->a[2]..ctx->a[3]). The
11195 * pointers are updated for next iteration before leaving.
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11196 */
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11197static int
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11198smp_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]11199{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11200 const char *vstart, *vend;
11201 struct chunk *temp;
11202 const char **chunks = (const char **)smp->ctx.a;
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11203
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11204 if (!find_next_url_param(chunks,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11205 name, name_len,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11206 &vstart, &vend,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11207 delim))
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11208 return 0;
11209
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11210 /* Create sample. If the value is contiguous, return the pointer as CONST,
11211 * if the value is wrapped, copy-it in a buffer.
11212 */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11213 smp->data.type = SMP_T_STR;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11214 if (chunks[2] &&
11215 vstart >= chunks[0] && vstart <= chunks[1] &&
11216 vend >= chunks[2] && vend <= chunks[3]) {
11217 /* Wrapped case. */
11218 temp = get_trash_chunk();
11219 memcpy(temp->str, vstart, chunks[1] - vstart);
11220 memcpy(temp->str + ( chunks[1] - vstart ), chunks[2], vend - chunks[2]);
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11221 smp->data.u.str.str = temp->str;
11222 smp->data.u.str.len = ( chunks[1] - vstart ) + ( vend - chunks[2] );
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11223 } else {
11224 /* Contiguous case. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11225 smp->data.u.str.str = (char *)vstart;
11226 smp->data.u.str.len = vend - vstart;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11227 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
11228 }
11229
11230 /* Update context, check wrapping. */
11231 chunks[0] = vend;
11232 if (chunks[2] && vend >= chunks[2] && vend <= chunks[3]) {
11233 chunks[1] = chunks[3];
11234 chunks[2] = NULL;
11235 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11236
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11237 if (chunks[0] < chunks[1])
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11238 smp->flags |= SMP_F_NOT_LAST;
11239
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11240 return 1;
11241}
11242
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11243/* This function iterates over each parameter of the query string. It uses
11244 * 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]11245 * parameter. Since it uses smp_fetch_param(), ctx->a[2..3] are both NULL.
11246 * An optional parameter name is passed in args[0], otherwise any parameter is
11247 * considered. It supports an optional delimiter argument for the beginning of
11248 * the string in args[1], which defaults to "?".
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11249 */
11250static int
11251smp_fetch_url_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11252{
11253 struct http_msg *msg;
11254 char delim = '?';
11255 const char *name;
11256 int name_len;
11257
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11258 if (!args ||
11259 (args[0].type && args[0].type != ARGT_STR) ||
11260 (args[1].type && args[1].type != ARGT_STR))
11261 return 0;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11262
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11263 name = "";
11264 name_len = 0;
11265 if (args->type == ARGT_STR) {
11266 name = args->data.str.str;
11267 name_len = args->data.str.len;
11268 }
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11269
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11270 if (args[1].type)
11271 delim = *args[1].data.str.str;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11272
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11273 if (!smp->ctx.a[0]) { // first call, find the query string
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11274 CHECK_HTTP_MESSAGE_FIRST();
11275
11276 msg = &smp->strm->txn->req;
11277
11278 smp->ctx.a[0] = find_param_list(msg->chn->buf->p + msg->sl.rq.u,
11279 msg->sl.rq.u_l, delim);
11280 if (!smp->ctx.a[0])
11281 return 0;
11282
11283 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]11284
11285 /* Assume that the context is filled with NULL pointer
11286 * before the first call.
11287 * smp->ctx.a[2] = NULL;
11288 * smp->ctx.a[3] = NULL;
11289 */
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11290 }
11291
11292 return smp_fetch_param(delim, name, name_len, args, smp, kw, private);
11293}
11294
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11295/* This function iterates over each parameter of the body. This requires
11296 * that the body has been waited for using http-buffer-request. It uses
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11297 * ctx->a[0] and ctx->a[1] to store the beginning and end of the first
11298 * contigous part of the body, and optionally ctx->a[2..3] to reference the
11299 * optional second part if the body wraps at the end of the buffer. An optional
11300 * parameter name is passed in args[0], otherwise any parameter is considered.
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11301 */
11302static int
11303smp_fetch_body_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11304{
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11305 struct http_msg *msg;
11306 unsigned long len;
11307 unsigned long block1;
11308 char *body;
11309 const char *name;
11310 int name_len;
11311
11312 if (!args || (args[0].type && args[0].type != ARGT_STR))
11313 return 0;
11314
11315 name = "";
11316 name_len = 0;
11317 if (args[0].type == ARGT_STR) {
11318 name = args[0].data.str.str;
11319 name_len = args[0].data.str.len;
11320 }
11321
11322 if (!smp->ctx.a[0]) { // first call, find the query string
11323 CHECK_HTTP_MESSAGE_FIRST();
11324
11325 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11326 msg = &smp->strm->txn->req;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11327 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11328 msg = &smp->strm->txn->rsp;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11329
11330 len = http_body_bytes(msg);
11331 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
11332
11333 block1 = len;
11334 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
11335 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
11336
11337 if (block1 == len) {
11338 /* buffer is not wrapped (or empty) */
11339 smp->ctx.a[0] = body;
11340 smp->ctx.a[1] = body + len;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11341
11342 /* Assume that the context is filled with NULL pointer
11343 * before the first call.
11344 * smp->ctx.a[2] = NULL;
11345 * smp->ctx.a[3] = NULL;
11346 */
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11347 }
11348 else {
11349 /* buffer is wrapped, we need to defragment it */
11350 smp->ctx.a[0] = body;
11351 smp->ctx.a[1] = body + block1;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11352 smp->ctx.a[2] = msg->chn->buf->data;
11353 smp->ctx.a[3] = msg->chn->buf->data + ( len - block1 );
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11354 }
11355 }
11356 return smp_fetch_param('&', name, name_len, args, smp, kw, private);
11357}
11358
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11359/* Return the signed integer value for the specified url parameter (see url_param
11360 * above).
11361 */
11362static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11363smp_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]11364{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11365 int ret = smp_fetch_url_param(args, smp, kw, private);
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11366
11367 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11368 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11369 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]11370 }
11371
11372 return ret;
11373}
11374
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11375/* This produces a 32-bit hash of the concatenation of the first occurrence of
11376 * the Host header followed by the path component if it begins with a slash ('/').
11377 * This means that '*' will not be added, resulting in exactly the first Host
11378 * entry. If no Host header is found, then the path is used. The resulting value
11379 * is hashed using the url hash followed by a full avalanche hash and provides a
11380 * 32-bit integer value. This fetch is useful for tracking per-URL activity on
11381 * high-traffic sites without having to store whole paths.
11382 * this differs from the base32 functions in that it includes the url parameters
11383 * as well as the path
11384 */
11385static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11386smp_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]11387{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11388 struct http_txn *txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11389 struct hdr_ctx ctx;
11390 unsigned int hash = 0;
11391 char *ptr, *beg, *end;
11392 int len;
11393
11394 CHECK_HTTP_MESSAGE_FIRST();
11395
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11396 txn = smp->strm->txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11397 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11398 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]11399 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
11400 ptr = ctx.line + ctx.val;
11401 len = ctx.vlen;
11402 while (len--)
11403 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
11404 }
11405
11406 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11407 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]11408 beg = http_get_path(txn);
11409 if (!beg)
11410 beg = end;
11411
11412 for (ptr = beg; ptr < end ; ptr++);
11413
11414 if (beg < ptr && *beg == '/') {
11415 while (beg < ptr)
11416 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
11417 }
11418 hash = full_hash(hash);
11419
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11420 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11421 smp->data.u.sint = hash;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11422 smp->flags = SMP_F_VOL_1ST;
11423 return 1;
11424}
11425
11426/* This concatenates the source address with the 32-bit hash of the Host and
11427 * URL as returned by smp_fetch_base32(). The idea is to have per-source and
11428 * per-url counters. The result is a binary block from 8 to 20 bytes depending
11429 * on the source address length. The URL hash is stored before the address so
11430 * that in environments where IPv6 is insignificant, truncating the output to
11431 * 8 bytes would still work.
11432 */
11433static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11434smp_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]11435{
11436 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11437 struct connection *cli_conn = objt_conn(smp->sess->origin);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11438
Dragan Dosendb5af612016-06-16 11:23:01 +0200[diff] [blame]11439 if (!cli_conn)
11440 return 0;
11441
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11442 if (!smp_fetch_url32(args, smp, kw, private))
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11443 return 0;
11444
11445 temp = get_trash_chunk();
Dragan Dosene5f41332016-06-16 11:08:08 +0200[diff] [blame]11446 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
11447 temp->len += sizeof(unsigned int);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11448
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11449 switch (cli_conn->addr.from.ss_family) {
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11450 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11451 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]11452 temp->len += 4;
11453 break;
11454 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11455 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]11456 temp->len += 16;
11457 break;
11458 default:
11459 return 0;
11460 }
11461
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11462 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11463 smp->data.type = SMP_T_BIN;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11464 return 1;
11465}
11466
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11467/* This function is used to validate the arguments passed to any "hdr" fetch
11468 * keyword. These keywords support an optional positive or negative occurrence
11469 * number. We must ensure that the number is greater than -MAX_HDR_HISTORY. It
11470 * is assumed that the types are already the correct ones. Returns 0 on error,
11471 * non-zero if OK. If <err> is not NULL, it will be filled with a pointer to an
11472 * error message in case of error, that the caller is responsible for freeing.
11473 * The initial location must either be freeable or NULL.
11474 */
Thierry FOURNIER49f45af2014-12-08 19:50:43 +0100[diff] [blame]11475int val_hdr(struct arg *arg, char **err_msg)
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11476{
11477 if (arg && arg[1].type == ARGT_SINT && arg[1].data.sint < -MAX_HDR_HISTORY) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]11478 memprintf(err_msg, "header occurrence must be >= %d", -MAX_HDR_HISTORY);
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11479 return 0;
11480 }
11481 return 1;
11482}
11483
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11484/* takes an UINT value on input supposed to represent the time since EPOCH,
11485 * adds an optional offset found in args[0] and emits a string representing
11486 * the date in RFC-1123/5322 format.
11487 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11488static int sample_conv_http_date(const struct arg *args, struct sample *smp, void *private)
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11489{
Cyril Bontéf78d8962016-01-22 19:40:28 +0100[diff] [blame]11490 const char day[7][4] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11491 const char mon[12][4] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
11492 struct chunk *temp;
11493 struct tm *tm;
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11494 /* 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]11495 time_t curr_date = smp->data.u.sint & 0x007fffffffffffffLL;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11496
11497 /* add offset */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11498 if (args && (args[0].type == ARGT_SINT))
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11499 curr_date += args[0].data.sint;
11500
11501 tm = gmtime(&curr_date);
Thierry FOURNIERfac9ccf2015-07-08 00:15:20 +0200[diff] [blame]11502 if (!tm)
11503 return 0;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11504
11505 temp = get_trash_chunk();
11506 temp->len = snprintf(temp->str, temp->size - temp->len,
11507 "%s, %02d %s %04d %02d:%02d:%02d GMT",
11508 day[tm->tm_wday], tm->tm_mday, mon[tm->tm_mon], 1900+tm->tm_year,
11509 tm->tm_hour, tm->tm_min, tm->tm_sec);
11510
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11511 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11512 smp->data.type = SMP_T_STR;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11513 return 1;
11514}
11515
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11516/* Match language range with language tag. RFC2616 14.4:
11517 *
11518 * A language-range matches a language-tag if it exactly equals
11519 * the tag, or if it exactly equals a prefix of the tag such
11520 * that the first tag character following the prefix is "-".
11521 *
11522 * Return 1 if the strings match, else return 0.
11523 */
11524static inline int language_range_match(const char *range, int range_len,
11525 const char *tag, int tag_len)
11526{
11527 const char *end = range + range_len;
11528 const char *tend = tag + tag_len;
11529 while (range < end) {
11530 if (*range == '-' && tag == tend)
11531 return 1;
11532 if (*range != *tag || tag == tend)
11533 return 0;
11534 range++;
11535 tag++;
11536 }
11537 /* Return true only if the last char of the tag is matched. */
11538 return tag == tend;
11539}
11540
11541/* Arguments: The list of expected value, the number of parts returned and the separator */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11542static int sample_conv_q_prefered(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11543{
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11544 const char *al = smp->data.u.str.str;
11545 const char *end = al + smp->data.u.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11546 const char *token;
11547 int toklen;
11548 int qvalue;
11549 const char *str;
11550 const char *w;
11551 int best_q = 0;
11552
11553 /* Set the constant to the sample, because the output of the
11554 * function will be peek in the constant configuration string.
11555 */
11556 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11557 smp->data.u.str.size = 0;
11558 smp->data.u.str.str = "";
11559 smp->data.u.str.len = 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11560
11561 /* Parse the accept language */
11562 while (1) {
11563
11564 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11565 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11566 al++;
11567 if (al >= end)
11568 break;
11569
11570 /* Start of the fisrt word. */
11571 token = al;
11572
11573 /* Look for separator: isspace(), ',' or ';'. Next value if 0 length word. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11574 while (al < end && *al != ';' && *al != ',' && !isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11575 al++;
11576 if (al == token)
11577 goto expect_comma;
11578
11579 /* Length of the token. */
11580 toklen = al - token;
11581 qvalue = 1000;
11582
11583 /* Check if the token exists in the list. If the token not exists,
11584 * jump to the next token.
11585 */
11586 str = args[0].data.str.str;
11587 w = str;
11588 while (1) {
11589 if (*str == ';' || *str == '\0') {
11590 if (language_range_match(token, toklen, w, str-w))
11591 goto look_for_q;
11592 if (*str == '\0')
11593 goto expect_comma;
11594 w = str + 1;
11595 }
11596 str++;
11597 }
11598 goto expect_comma;
11599
11600look_for_q:
11601
11602 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11603 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11604 al++;
11605 if (al >= end)
11606 goto process_value;
11607
11608 /* If ',' is found, process the result */
11609 if (*al == ',')
11610 goto process_value;
11611
11612 /* If the character is different from ';', look
11613 * for the end of the header part in best effort.
11614 */
11615 if (*al != ';')
11616 goto expect_comma;
11617
11618 /* Assumes that the char is ';', now expect "q=". */
11619 al++;
11620
11621 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11622 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11623 al++;
11624 if (al >= end)
11625 goto process_value;
11626
11627 /* Expect 'q'. If no 'q', continue in best effort */
11628 if (*al != 'q')
11629 goto process_value;
11630 al++;
11631
11632 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11633 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11634 al++;
11635 if (al >= end)
11636 goto process_value;
11637
11638 /* Expect '='. If no '=', continue in best effort */
11639 if (*al != '=')
11640 goto process_value;
11641 al++;
11642
11643 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11644 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11645 al++;
11646 if (al >= end)
11647 goto process_value;
11648
11649 /* Parse the q value. */
11650 qvalue = parse_qvalue(al, &al);
11651
11652process_value:
11653
11654 /* If the new q value is the best q value, then store the associated
11655 * language in the response. If qvalue is the biggest value (1000),
11656 * break the process.
11657 */
11658 if (qvalue > best_q) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11659 smp->data.u.str.str = (char *)w;
11660 smp->data.u.str.len = str - w;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11661 if (qvalue >= 1000)
11662 break;
11663 best_q = qvalue;
11664 }
11665
11666expect_comma:
11667
11668 /* Expect comma or end. If the end is detected, quit the loop. */
11669 while (al < end && *al != ',')
11670 al++;
11671 if (al >= end)
11672 break;
11673
11674 /* Comma is found, jump it and restart the analyzer. */
11675 al++;
11676 }
11677
11678 /* Set default value if required. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11679 if (smp->data.u.str.len == 0 && args[1].type == ARGT_STR) {
11680 smp->data.u.str.str = args[1].data.str.str;
11681 smp->data.u.str.len = args[1].data.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11682 }
11683
11684 /* Return true only if a matching language was found. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11685 return smp->data.u.str.len != 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11686}
11687
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11688/* This fetch url-decode any input string. */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11689static int sample_conv_url_dec(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11690{
11691 /* If the constant flag is set or if not size is avalaible at
11692 * the end of the buffer, copy the string in other buffer
11693 * before decoding.
11694 */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11695 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]11696 struct chunk *str = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11697 memcpy(str->str, smp->data.u.str.str, smp->data.u.str.len);
11698 smp->data.u.str.str = str->str;
11699 smp->data.u.str.size = str->size;
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11700 smp->flags &= ~SMP_F_CONST;
11701 }
11702
11703 /* Add final \0 required by url_decode(), and convert the input string. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11704 smp->data.u.str.str[smp->data.u.str.len] = '\0';
11705 smp->data.u.str.len = url_decode(smp->data.u.str.str);
Christopher Fauleta2584792017-10-05 10:03:12 +0200[diff] [blame]11706 return (smp->data.u.str.len >= 0);
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11707}
11708
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11709static int smp_conv_req_capture(const struct arg *args, struct sample *smp, void *private)
11710{
11711 struct proxy *fe = strm_fe(smp->strm);
11712 int idx, i;
11713 struct cap_hdr *hdr;
11714 int len;
11715
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11716 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11717 return 0;
11718
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11719 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11720
11721 /* Check the availibity of the capture id. */
11722 if (idx > fe->nb_req_cap - 1)
11723 return 0;
11724
11725 /* Look for the original configuration. */
11726 for (hdr = fe->req_cap, i = fe->nb_req_cap - 1;
11727 hdr != NULL && i != idx ;
11728 i--, hdr = hdr->next);
11729 if (!hdr)
11730 return 0;
11731
11732 /* check for the memory allocation */
11733 if (smp->strm->req_cap[hdr->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]11734 smp->strm->req_cap[hdr->index] = pool_alloc(hdr->pool);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11735 if (smp->strm->req_cap[hdr->index] == NULL)
11736 return 0;
11737
11738 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11739 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11740 if (len > hdr->len)
11741 len = hdr->len;
11742
11743 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11744 memcpy(smp->strm->req_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11745 smp->strm->req_cap[idx][len] = '\0';
11746
11747 return 1;
11748}
11749
11750static int smp_conv_res_capture(const struct arg *args, struct sample *smp, void *private)
11751{
11752 struct proxy *fe = strm_fe(smp->strm);
11753 int idx, i;
11754 struct cap_hdr *hdr;
11755 int len;
11756
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11757 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11758 return 0;
11759
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11760 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11761
11762 /* Check the availibity of the capture id. */
11763 if (idx > fe->nb_rsp_cap - 1)
11764 return 0;
11765
11766 /* Look for the original configuration. */
11767 for (hdr = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
11768 hdr != NULL && i != idx ;
11769 i--, hdr = hdr->next);
11770 if (!hdr)
11771 return 0;
11772
11773 /* check for the memory allocation */
11774 if (smp->strm->res_cap[hdr->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]11775 smp->strm->res_cap[hdr->index] = pool_alloc(hdr->pool);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11776 if (smp->strm->res_cap[hdr->index] == NULL)
11777 return 0;
11778
11779 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11780 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11781 if (len > hdr->len)
11782 len = hdr->len;
11783
11784 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11785 memcpy(smp->strm->res_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11786 smp->strm->res_cap[idx][len] = '\0';
11787
11788 return 1;
11789}
11790
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11791/* This function executes one of the set-{method,path,query,uri} actions. It
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11792 * takes the string from the variable 'replace' with length 'len', then modifies
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11793 * the relevant part of the request line accordingly. Then it updates various
11794 * pointers to the next elements which were moved, and the total buffer length.
11795 * It finds the action to be performed in p[2], previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11796 * parse_set_req_line(). It returns 0 in case of success, -1 in case of internal
11797 * error, though this can be revisited when this code is finally exploited.
11798 *
11799 * 'action' can be '0' to replace method, '1' to replace path, '2' to replace
11800 * query string and 3 to replace uri.
11801 *
11802 * In query string case, the mark question '?' must be set at the start of the
11803 * string by the caller, event if the replacement query string is empty.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11804 */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11805int http_replace_req_line(int action, const char *replace, int len,
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11806 struct proxy *px, struct stream *s)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11807{
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11808 struct http_txn *txn = s->txn;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11809 char *cur_ptr, *cur_end;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11810 int offset = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11811 int delta;
11812
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11813 switch (action) {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11814 case 0: // method
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11815 cur_ptr = s->req.buf->p;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11816 cur_end = cur_ptr + txn->req.sl.rq.m_l;
11817
11818 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11819 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11820 txn->req.sl.rq.m_l += delta;
11821 txn->req.sl.rq.u += delta;
11822 txn->req.sl.rq.v += delta;
11823 break;
11824
11825 case 1: // path
11826 cur_ptr = http_get_path(txn);
11827 if (!cur_ptr)
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11828 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11829
11830 cur_end = cur_ptr;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11831 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]11832 cur_end++;
11833
11834 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11835 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11836 txn->req.sl.rq.u_l += delta;
11837 txn->req.sl.rq.v += delta;
11838 break;
11839
11840 case 2: // query
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11841 offset = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11842 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11843 cur_end = cur_ptr + txn->req.sl.rq.u_l;
11844 while (cur_ptr < cur_end && *cur_ptr != '?')
11845 cur_ptr++;
11846
11847 /* skip the question mark or indicate that we must insert it
11848 * (but only if the format string is not empty then).
11849 */
11850 if (cur_ptr < cur_end)
11851 cur_ptr++;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11852 else if (len > 1)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11853 offset = 0;
11854
11855 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11856 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11857 txn->req.sl.rq.u_l += delta;
11858 txn->req.sl.rq.v += delta;
11859 break;
11860
11861 case 3: // uri
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11862 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11863 cur_end = cur_ptr + txn->req.sl.rq.u_l;
11864
11865 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11866 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11867 txn->req.sl.rq.u_l += delta;
11868 txn->req.sl.rq.v += delta;
11869 break;
11870
11871 default:
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11872 return -1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11873 }
11874
11875 /* commit changes and adjust end of message */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11876 delta = buffer_replace2(s->req.buf, cur_ptr, cur_end, replace + offset, len - offset);
Thierry FOURNIER7f6192c2015-04-26 18:01:40 +0200[diff] [blame]11877 txn->req.sl.rq.l += delta;
11878 txn->hdr_idx.v[0].len += delta;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11879 http_msg_move_end(&txn->req, delta);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11880 return 0;
11881}
11882
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11883/* This function replace the HTTP status code and the associated message. The
11884 * variable <status> contains the new status code. This function never fails.
11885 */
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11886void http_set_status(unsigned int status, const char *reason, struct stream *s)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11887{
11888 struct http_txn *txn = s->txn;
11889 char *cur_ptr, *cur_end;
11890 int delta;
11891 char *res;
11892 int c_l;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11893 const char *msg = reason;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11894 int msg_len;
11895
11896 chunk_reset(&trash);
11897
11898 res = ultoa_o(status, trash.str, trash.size);
11899 c_l = res - trash.str;
11900
11901 trash.str[c_l] = ' ';
11902 trash.len = c_l + 1;
11903
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11904 /* Do we have a custom reason format string? */
11905 if (msg == NULL)
11906 msg = get_reason(status);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11907 msg_len = strlen(msg);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11908 strncpy(&trash.str[trash.len], msg, trash.size - trash.len);
11909 trash.len += msg_len;
11910
11911 cur_ptr = s->res.buf->p + txn->rsp.sl.st.c;
11912 cur_end = s->res.buf->p + txn->rsp.sl.st.r + txn->rsp.sl.st.r_l;
11913
11914 /* commit changes and adjust message */
11915 delta = buffer_replace2(s->res.buf, cur_ptr, cur_end, trash.str, trash.len);
11916
11917 /* adjust res line offsets and lengths */
11918 txn->rsp.sl.st.r += c_l - txn->rsp.sl.st.c_l;
11919 txn->rsp.sl.st.c_l = c_l;
11920 txn->rsp.sl.st.r_l = msg_len;
11921
11922 delta = trash.len - (cur_end - cur_ptr);
11923 txn->rsp.sl.st.l += delta;
11924 txn->hdr_idx.v[0].len += delta;
11925 http_msg_move_end(&txn->rsp, delta);
11926}
11927
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11928/* This function executes one of the set-{method,path,query,uri} actions. It
11929 * builds a string in the trash from the specified format string. It finds
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]11930 * the action to be performed in <http.action>, previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11931 * parse_set_req_line(). The replacement action is excuted by the function
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]11932 * http_action_set_req_line(). It always returns ACT_RET_CONT. If an error
11933 * occurs the action is canceled, but the rule processing continue.
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11934 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11935enum act_return http_action_set_req_line(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11936 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11937{
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]11938 struct chunk *replace;
11939 enum act_return ret = ACT_RET_ERR;
11940
11941 replace = alloc_trash_chunk();
11942 if (!replace)
11943 goto leave;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11944
11945 /* If we have to create a query string, prepare a '?'. */
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11946 if (rule->arg.http.action == 2)
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]11947 replace->str[replace->len++] = '?';
11948 replace->len += build_logline(s, replace->str + replace->len, replace->size - replace->len,
11949 &rule->arg.http.logfmt);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11950
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]11951 http_replace_req_line(rule->arg.http.action, replace->str, replace->len, px, s);
11952
11953 ret = ACT_RET_CONT;
11954
11955leave:
11956 free_trash_chunk(replace);
11957 return ret;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11958}
11959
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11960/* This function is just a compliant action wrapper for "set-status". */
11961enum act_return action_http_set_status(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11962 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11963{
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11964 http_set_status(rule->arg.status.code, rule->arg.status.reason, s);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11965 return ACT_RET_CONT;
11966}
11967
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11968/* parse an http-request action among :
11969 * set-method
11970 * set-path
11971 * set-query
11972 * set-uri
11973 *
11974 * All of them accept a single argument of type string representing a log-format.
11975 * The resulting rule makes use of arg->act.p[0..1] to store the log-format list
11976 * 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]11977 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11978 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11979enum act_parse_ret parse_set_req_line(const char **args, int *orig_arg, struct proxy *px,
11980 struct act_rule *rule, char **err)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11981{
11982 int cur_arg = *orig_arg;
11983
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]11984 rule->action = ACT_CUSTOM;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11985
11986 switch (args[0][4]) {
11987 case 'm' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11988 rule->arg.http.action = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11989 rule->action_ptr = http_action_set_req_line;
11990 break;
11991 case 'p' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11992 rule->arg.http.action = 1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11993 rule->action_ptr = http_action_set_req_line;
11994 break;
11995 case 'q' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11996 rule->arg.http.action = 2;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11997 rule->action_ptr = http_action_set_req_line;
11998 break;
11999 case 'u' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12000 rule->arg.http.action = 3;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12001 rule->action_ptr = http_action_set_req_line;
12002 break;
12003 default:
12004 memprintf(err, "internal error: unhandled action '%s'", args[0]);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12005 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12006 }
12007
12008 if (!*args[cur_arg] ||
12009 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
12010 memprintf(err, "expects exactly 1 argument <format>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12011 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12012 }
12013
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12014 LIST_INIT(&rule->arg.http.logfmt);
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12015 px->conf.args.ctx = ARGC_HRQ;
12016 if (!parse_logformat_string(args[cur_arg], px, &rule->arg.http.logfmt, LOG_OPT_HTTP,
12017 (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]12018 return ACT_RET_PRS_ERR;
12019 }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12020
12021 (*orig_arg)++;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12022 return ACT_RET_PRS_OK;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12023}
12024
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12025/* parse set-status action:
12026 * This action accepts a single argument of type int representing
12027 * an http status code. It returns ACT_RET_PRS_OK on success,
12028 * ACT_RET_PRS_ERR on error.
12029 */
12030enum act_parse_ret parse_http_set_status(const char **args, int *orig_arg, struct proxy *px,
12031 struct act_rule *rule, char **err)
12032{
12033 char *error;
12034
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12035 rule->action = ACT_CUSTOM;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12036 rule->action_ptr = action_http_set_status;
12037
12038 /* Check if an argument is available */
12039 if (!*args[*orig_arg]) {
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12040 memprintf(err, "expects 1 argument: <status>; or 3 arguments: <status> reason <fmt>");
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12041 return ACT_RET_PRS_ERR;
12042 }
12043
12044 /* convert status code as integer */
12045 rule->arg.status.code = strtol(args[*orig_arg], &error, 10);
12046 if (*error != '\0' || rule->arg.status.code < 100 || rule->arg.status.code > 999) {
12047 memprintf(err, "expects an integer status code between 100 and 999");
12048 return ACT_RET_PRS_ERR;
12049 }
12050
12051 (*orig_arg)++;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]12052
12053 /* set custom reason string */
12054 rule->arg.status.reason = NULL; // If null, we use the default reason for the status code.
12055 if (*args[*orig_arg] && strcmp(args[*orig_arg], "reason") == 0 &&
12056 (*args[*orig_arg + 1] && strcmp(args[*orig_arg + 1], "if") != 0 && strcmp(args[*orig_arg + 1], "unless") != 0)) {
12057 (*orig_arg)++;
12058 rule->arg.status.reason = strdup(args[*orig_arg]);
12059 (*orig_arg)++;
12060 }
12061
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12062 return ACT_RET_PRS_OK;
12063}
12064
Willy Tarreau53275e82017-11-24 07:52:01 +0100[diff] [blame]12065/* This function executes the "reject" HTTP action. It clears the request and
12066 * response buffer without sending any response. It can be useful as an HTTP
12067 * alternative to the silent-drop action to defend against DoS attacks, and may
12068 * also be used with HTTP/2 to close a connection instead of just a stream.
12069 * The txn status is unchanged, indicating no response was sent. The termination
12070 * flags will indicate "PR". It always returns ACT_RET_STOP.
12071 */
12072enum act_return http_action_reject(struct act_rule *rule, struct proxy *px,
12073 struct session *sess, struct stream *s, int flags)
12074{
12075 channel_abort(&s->req);
12076 channel_abort(&s->res);
12077 s->req.analysers = 0;
12078 s->res.analysers = 0;
12079
12080 HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1);
12081 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1);
12082 if (sess->listener && sess->listener->counters)
12083 HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1);
12084
12085 if (!(s->flags & SF_ERR_MASK))
12086 s->flags |= SF_ERR_PRXCOND;
12087 if (!(s->flags & SF_FINST_MASK))
12088 s->flags |= SF_FINST_R;
12089
12090 return ACT_RET_CONT;
12091}
12092
12093/* parse the "reject" action:
12094 * This action takes no argument and returns ACT_RET_PRS_OK on success,
12095 * ACT_RET_PRS_ERR on error.
12096 */
12097enum act_parse_ret parse_http_action_reject(const char **args, int *orig_arg, struct proxy *px,
12098 struct act_rule *rule, char **err)
12099{
12100 rule->action = ACT_CUSTOM;
12101 rule->action_ptr = http_action_reject;
12102 return ACT_RET_PRS_OK;
12103}
12104
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12105/* This function executes the "capture" action. It executes a fetch expression,
12106 * turns the result into a string and puts it in a capture slot. It always
12107 * returns 1. If an error occurs the action is cancelled, but the rule
12108 * processing continues.
12109 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12110enum act_return http_action_req_capture(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12111 struct session *sess, struct stream *s, int flags)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12112{
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12113 struct sample *key;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12114 struct cap_hdr *h = rule->arg.cap.hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12115 char **cap = s->req_cap;
12116 int len;
12117
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12118 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]12119 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12120 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12121
12122 if (cap[h->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]12123 cap[h->index] = pool_alloc(h->pool);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12124
12125 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12126 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12127
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12128 len = key->data.u.str.len;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12129 if (len > h->len)
12130 len = h->len;
12131
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12132 memcpy(cap[h->index], key->data.u.str.str, len);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12133 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12134 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12135}
12136
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12137/* This function executes the "capture" action and store the result in a
12138 * capture slot if exists. It executes a fetch expression, turns the result
12139 * into a string and puts it in a capture slot. It always returns 1. If an
12140 * error occurs the action is cancelled, but the rule processing continues.
12141 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12142enum 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]12143 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12144{
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12145 struct sample *key;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12146 struct cap_hdr *h;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12147 char **cap = s->req_cap;
12148 struct proxy *fe = strm_fe(s);
12149 int len;
12150 int i;
12151
12152 /* Look for the original configuration. */
12153 for (h = fe->req_cap, i = fe->nb_req_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12154 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12155 i--, h = h->next);
12156 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12157 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12158
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12159 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]12160 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12161 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12162
12163 if (cap[h->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]12164 cap[h->index] = pool_alloc(h->pool);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12165
12166 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12167 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12168
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12169 len = key->data.u.str.len;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12170 if (len > h->len)
12171 len = h->len;
12172
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12173 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12174 cap[h->index][len] = 0;
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}
12177
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12178/* Check an "http-request capture" action.
12179 *
12180 * The function returns 1 in success case, otherwise, it returns 0 and err is
12181 * filled.
12182 */
12183int check_http_req_capture(struct act_rule *rule, struct proxy *px, char **err)
12184{
Christopher Fauletfd608dd2017-12-04 09:45:15 +0100[diff] [blame]12185 if (rule->action_ptr != http_action_req_capture_by_id)
12186 return 1;
12187
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12188 if (rule->arg.capid.idx >= px->nb_req_cap) {
12189 memprintf(err, "unable to find capture id '%d' referenced by http-request capture rule",
12190 rule->arg.capid.idx);
12191 return 0;
12192 }
12193
12194 return 1;
12195}
12196
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12197/* parse an "http-request capture" action. It takes a single argument which is
12198 * a sample fetch expression. It stores the expression into arg->act.p[0] and
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12199 * the allocated hdr_cap struct or the preallocated "id" into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12200 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12201 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12202enum act_parse_ret parse_http_req_capture(const char **args, int *orig_arg, struct proxy *px,
12203 struct act_rule *rule, char **err)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12204{
12205 struct sample_expr *expr;
12206 struct cap_hdr *hdr;
12207 int cur_arg;
Willy Tarreau3986ac12015-05-08 16:13:42 +0200[diff] [blame]12208 int len = 0;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12209
12210 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12211 if (strcmp(args[cur_arg], "if") == 0 ||
12212 strcmp(args[cur_arg], "unless") == 0)
12213 break;
12214
12215 if (cur_arg < *orig_arg + 3) {
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12216 memprintf(err, "expects <expression> [ 'len' <length> | id <idx> ]");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12217 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12218 }
12219
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12220 cur_arg = *orig_arg;
12221 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12222 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12223 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12224
12225 if (!(expr->fetch->val & SMP_VAL_FE_HRQ_HDR)) {
12226 memprintf(err,
12227 "fetch method '%s' extracts information from '%s', none of which is available here",
12228 args[cur_arg-1], sample_src_names(expr->fetch->use));
12229 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12230 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12231 }
12232
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12233 if (!args[cur_arg] || !*args[cur_arg]) {
12234 memprintf(err, "expects 'len or 'id'");
12235 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12236 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12237 }
12238
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12239 if (strcmp(args[cur_arg], "len") == 0) {
12240 cur_arg++;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12241
12242 if (!(px->cap & PR_CAP_FE)) {
12243 memprintf(err, "proxy '%s' has no frontend capability", px->id);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12244 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12245 }
12246
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12247 px->conf.args.ctx = ARGC_CAP;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12248
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12249 if (!args[cur_arg]) {
12250 memprintf(err, "missing length value");
12251 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12252 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12253 }
12254 /* we copy the table name for now, it will be resolved later */
12255 len = atoi(args[cur_arg]);
12256 if (len <= 0) {
12257 memprintf(err, "length must be > 0");
12258 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12259 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12260 }
12261 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12262
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12263 if (!len) {
12264 memprintf(err, "a positive 'len' argument is mandatory");
12265 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12266 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12267 }
12268
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]12269 hdr = calloc(1, sizeof(*hdr));
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12270 hdr->next = px->req_cap;
12271 hdr->name = NULL; /* not a header capture */
12272 hdr->namelen = 0;
12273 hdr->len = len;
12274 hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED);
12275 hdr->index = px->nb_req_cap++;
12276
12277 px->req_cap = hdr;
12278 px->to_log |= LW_REQHDR;
12279
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12280 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12281 rule->action_ptr = http_action_req_capture;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12282 rule->arg.cap.expr = expr;
12283 rule->arg.cap.hdr = hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12284 }
12285
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12286 else if (strcmp(args[cur_arg], "id") == 0) {
12287 int id;
12288 char *error;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12289
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12290 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12291
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12292 if (!args[cur_arg]) {
12293 memprintf(err, "missing id value");
12294 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12295 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12296 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12297
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12298 id = strtol(args[cur_arg], &error, 10);
12299 if (*error != '\0') {
12300 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12301 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12302 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12303 }
12304 cur_arg++;
12305
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12306 px->conf.args.ctx = ARGC_CAP;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12307
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12308 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12309 rule->action_ptr = http_action_req_capture_by_id;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12310 rule->check_ptr = check_http_req_capture;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12311 rule->arg.capid.expr = expr;
12312 rule->arg.capid.idx = id;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12313 }
12314
12315 else {
12316 memprintf(err, "expects 'len' or 'id', found '%s'", args[cur_arg]);
12317 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12318 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12319 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12320
12321 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12322 return ACT_RET_PRS_OK;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12323}
12324
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12325/* This function executes the "capture" action and store the result in a
12326 * capture slot if exists. It executes a fetch expression, turns the result
12327 * into a string and puts it in a capture slot. It always returns 1. If an
12328 * error occurs the action is cancelled, but the rule processing continues.
12329 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12330enum 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]12331 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12332{
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12333 struct sample *key;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12334 struct cap_hdr *h;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12335 char **cap = s->res_cap;
12336 struct proxy *fe = strm_fe(s);
12337 int len;
12338 int i;
12339
12340 /* Look for the original configuration. */
12341 for (h = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12342 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12343 i--, h = h->next);
12344 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12345 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12346
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12347 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]12348 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12349 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12350
12351 if (cap[h->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]12352 cap[h->index] = pool_alloc(h->pool);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12353
12354 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12355 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12356
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12357 len = key->data.u.str.len;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12358 if (len > h->len)
12359 len = h->len;
12360
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12361 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12362 cap[h->index][len] = 0;
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}
12365
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12366/* Check an "http-response capture" action.
12367 *
12368 * The function returns 1 in success case, otherwise, it returns 0 and err is
12369 * filled.
12370 */
12371int check_http_res_capture(struct act_rule *rule, struct proxy *px, char **err)
12372{
Christopher Fauletfd608dd2017-12-04 09:45:15 +0100[diff] [blame]12373 if (rule->action_ptr != http_action_res_capture_by_id)
12374 return 1;
12375
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12376 if (rule->arg.capid.idx >= px->nb_rsp_cap) {
12377 memprintf(err, "unable to find capture id '%d' referenced by http-response capture rule",
12378 rule->arg.capid.idx);
12379 return 0;
12380 }
12381
12382 return 1;
12383}
12384
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12385/* parse an "http-response capture" action. It takes a single argument which is
12386 * a sample fetch expression. It stores the expression into arg->act.p[0] and
12387 * the allocated hdr_cap struct od the preallocated id into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12388 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12389 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12390enum act_parse_ret parse_http_res_capture(const char **args, int *orig_arg, struct proxy *px,
12391 struct act_rule *rule, char **err)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12392{
12393 struct sample_expr *expr;
12394 int cur_arg;
12395 int id;
12396 char *error;
12397
12398 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12399 if (strcmp(args[cur_arg], "if") == 0 ||
12400 strcmp(args[cur_arg], "unless") == 0)
12401 break;
12402
12403 if (cur_arg < *orig_arg + 3) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12404 memprintf(err, "expects <expression> id <idx>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12405 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12406 }
12407
12408 cur_arg = *orig_arg;
12409 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12410 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12411 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12412
12413 if (!(expr->fetch->val & SMP_VAL_FE_HRS_HDR)) {
12414 memprintf(err,
12415 "fetch method '%s' extracts information from '%s', none of which is available here",
12416 args[cur_arg-1], sample_src_names(expr->fetch->use));
12417 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12418 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12419 }
12420
12421 if (!args[cur_arg] || !*args[cur_arg]) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12422 memprintf(err, "expects 'id'");
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12423 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12424 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12425 }
12426
12427 if (strcmp(args[cur_arg], "id") != 0) {
12428 memprintf(err, "expects 'id', found '%s'", args[cur_arg]);
12429 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12430 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12431 }
12432
12433 cur_arg++;
12434
12435 if (!args[cur_arg]) {
12436 memprintf(err, "missing id value");
12437 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12438 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12439 }
12440
12441 id = strtol(args[cur_arg], &error, 10);
12442 if (*error != '\0') {
12443 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12444 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12445 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12446 }
12447 cur_arg++;
12448
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12449 px->conf.args.ctx = ARGC_CAP;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12450
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12451 rule->action = ACT_CUSTOM;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12452 rule->action_ptr = http_action_res_capture_by_id;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12453 rule->check_ptr = check_http_res_capture;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12454 rule->arg.capid.expr = expr;
12455 rule->arg.capid.idx = id;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12456
12457 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12458 return ACT_RET_PRS_OK;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12459}
12460
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12461/*
12462 * Return the struct http_req_action_kw associated to a keyword.
12463 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12464struct action_kw *action_http_req_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12465{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12466 return action_lookup(&http_req_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12467}
12468
12469/*
12470 * Return the struct http_res_action_kw associated to a keyword.
12471 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12472struct action_kw *action_http_res_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12473{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12474 return action_lookup(&http_res_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12475}
12476
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12477
12478/* "show errors" handler for the CLI. Returns 0 if wants to continue, 1 to stop
12479 * now.
12480 */
12481static int cli_parse_show_errors(char **args, struct appctx *appctx, void *private)
12482{
12483 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
12484 return 1;
12485
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12486 if (*args[2]) {
12487 struct proxy *px;
12488
12489 px = proxy_find_by_name(args[2], 0, 0);
12490 if (px)
12491 appctx->ctx.errors.iid = px->uuid;
12492 else
12493 appctx->ctx.errors.iid = atoi(args[2]);
12494
12495 if (!appctx->ctx.errors.iid) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +0200[diff] [blame]12496 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12497 appctx->ctx.cli.msg = "No such proxy.\n";
12498 appctx->st0 = CLI_ST_PRINT;
12499 return 1;
12500 }
12501 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12502 else
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12503 appctx->ctx.errors.iid = -1; // dump all proxies
12504
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12505 appctx->ctx.errors.flag = 0;
12506 if (strcmp(args[3], "request") == 0)
12507 appctx->ctx.errors.flag |= 4; // ignore response
12508 else if (strcmp(args[3], "response") == 0)
12509 appctx->ctx.errors.flag |= 2; // ignore request
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12510 appctx->ctx.errors.px = NULL;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12511 return 0;
12512}
12513
12514/* This function dumps all captured errors onto the stream interface's
12515 * read buffer. It returns 0 if the output buffer is full and it needs
12516 * to be called again, otherwise non-zero.
12517 */
12518static int cli_io_handler_show_errors(struct appctx *appctx)
12519{
12520 struct stream_interface *si = appctx->owner;
12521 extern const char *monthname[12];
12522
12523 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
12524 return 1;
12525
12526 chunk_reset(&trash);
12527
12528 if (!appctx->ctx.errors.px) {
12529 /* the function had not been called yet, let's prepare the
12530 * buffer for a response.
12531 */
12532 struct tm tm;
12533
12534 get_localtime(date.tv_sec, &tm);
12535 chunk_appendf(&trash, "Total events captured on [%02d/%s/%04d:%02d:%02d:%02d.%03d] : %u\n",
12536 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12537 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(date.tv_usec/1000),
12538 error_snapshot_id);
12539
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12540 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12541 /* Socket buffer full. Let's try again later from the same point */
12542 si_applet_cant_put(si);
12543 return 0;
12544 }
12545
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12546 appctx->ctx.errors.px = proxies_list;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12547 appctx->ctx.errors.bol = 0;
12548 appctx->ctx.errors.ptr = -1;
12549 }
12550
12551 /* we have two inner loops here, one for the proxy, the other one for
12552 * the buffer.
12553 */
12554 while (appctx->ctx.errors.px) {
12555 struct error_snapshot *es;
12556
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12557 if ((appctx->ctx.errors.flag & 1) == 0) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12558 es = &appctx->ctx.errors.px->invalid_req;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12559 if (appctx->ctx.errors.flag & 2) // skip req
12560 goto next;
12561 }
12562 else {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12563 es = &appctx->ctx.errors.px->invalid_rep;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12564 if (appctx->ctx.errors.flag & 4) // skip resp
12565 goto next;
12566 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12567
12568 if (!es->when.tv_sec)
12569 goto next;
12570
12571 if (appctx->ctx.errors.iid >= 0 &&
12572 appctx->ctx.errors.px->uuid != appctx->ctx.errors.iid &&
12573 es->oe->uuid != appctx->ctx.errors.iid)
12574 goto next;
12575
12576 if (appctx->ctx.errors.ptr < 0) {
12577 /* just print headers now */
12578
12579 char pn[INET6_ADDRSTRLEN];
12580 struct tm tm;
12581 int port;
12582
12583 get_localtime(es->when.tv_sec, &tm);
12584 chunk_appendf(&trash, " \n[%02d/%s/%04d:%02d:%02d:%02d.%03d]",
12585 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12586 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(es->when.tv_usec/1000));
12587
12588 switch (addr_to_str(&es->src, pn, sizeof(pn))) {
12589 case AF_INET:
12590 case AF_INET6:
12591 port = get_host_port(&es->src);
12592 break;
12593 default:
12594 port = 0;
12595 }
12596
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12597 switch (appctx->ctx.errors.flag & 1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12598 case 0:
12599 chunk_appendf(&trash,
12600 " frontend %s (#%d): invalid request\n"
12601 " backend %s (#%d)",
12602 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12603 (es->oe->cap & PR_CAP_BE) ? es->oe->id : "<NONE>",
12604 (es->oe->cap & PR_CAP_BE) ? es->oe->uuid : -1);
12605 break;
12606 case 1:
12607 chunk_appendf(&trash,
12608 " backend %s (#%d): invalid response\n"
12609 " frontend %s (#%d)",
12610 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12611 es->oe->id, es->oe->uuid);
12612 break;
12613 }
12614
12615 chunk_appendf(&trash,
12616 ", server %s (#%d), event #%u\n"
12617 " src %s:%d, session #%d, session flags 0x%08x\n"
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]12618 " HTTP msg state %s(%d), msg flags 0x%08x, tx flags 0x%08x\n"
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12619 " HTTP chunk len %lld bytes, HTTP body len %lld bytes\n"
12620 " buffer flags 0x%08x, out %d bytes, total %lld bytes\n"
12621 " pending %d bytes, wrapping at %d, error at position %d:\n \n",
12622 es->srv ? es->srv->id : "<NONE>", es->srv ? es->srv->puid : -1,
12623 es->ev_id,
12624 pn, port, es->sid, es->s_flags,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]12625 h1_msg_state_str(es->state), es->state, es->m_flags, es->t_flags,
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12626 es->m_clen, es->m_blen,
12627 es->b_flags, es->b_out, es->b_tot,
12628 es->len, es->b_wrap, es->pos);
12629
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12630 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12631 /* Socket buffer full. Let's try again later from the same point */
12632 si_applet_cant_put(si);
12633 return 0;
12634 }
12635 appctx->ctx.errors.ptr = 0;
12636 appctx->ctx.errors.sid = es->sid;
12637 }
12638
12639 if (appctx->ctx.errors.sid != es->sid) {
12640 /* the snapshot changed while we were dumping it */
12641 chunk_appendf(&trash,
12642 " WARNING! update detected on this snapshot, dump interrupted. Please re-check!\n");
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12643 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12644 si_applet_cant_put(si);
12645 return 0;
12646 }
12647 goto next;
12648 }
12649
12650 /* OK, ptr >= 0, so we have to dump the current line */
12651 while (es->buf && appctx->ctx.errors.ptr < es->len && appctx->ctx.errors.ptr < global.tune.bufsize) {
12652 int newptr;
12653 int newline;
12654
12655 newline = appctx->ctx.errors.bol;
12656 newptr = dump_text_line(&trash, es->buf, global.tune.bufsize, es->len, &newline, appctx->ctx.errors.ptr);
12657 if (newptr == appctx->ctx.errors.ptr)
12658 return 0;
12659
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12660 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12661 /* Socket buffer full. Let's try again later from the same point */
12662 si_applet_cant_put(si);
12663 return 0;
12664 }
12665 appctx->ctx.errors.ptr = newptr;
12666 appctx->ctx.errors.bol = newline;
12667 };
12668 next:
12669 appctx->ctx.errors.bol = 0;
12670 appctx->ctx.errors.ptr = -1;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12671 appctx->ctx.errors.flag ^= 1;
12672 if (!(appctx->ctx.errors.flag & 1))
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12673 appctx->ctx.errors.px = appctx->ctx.errors.px->next;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12674 }
12675
12676 /* dump complete */
12677 return 1;
12678}
12679
12680/* register cli keywords */
12681static struct cli_kw_list cli_kws = {{ },{
12682 { { "show", "errors", NULL },
12683 "show errors : report last request and response errors for each proxy",
12684 cli_parse_show_errors, cli_io_handler_show_errors, NULL,
12685 },
12686 {{},}
12687}};
12688
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12689/************************************************************************/
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12690/* All supported ACL keywords must be declared here. */
12691/************************************************************************/
12692
12693/* Note: must not be declared <const> as its list will be overwritten.
12694 * Please take care of keeping this list alphabetically sorted.
12695 */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12696static struct acl_kw_list acl_kws = {ILH, {
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12697 { "base", "base", PAT_MATCH_STR },
12698 { "base_beg", "base", PAT_MATCH_BEG },
12699 { "base_dir", "base", PAT_MATCH_DIR },
12700 { "base_dom", "base", PAT_MATCH_DOM },
12701 { "base_end", "base", PAT_MATCH_END },
12702 { "base_len", "base", PAT_MATCH_LEN },
12703 { "base_reg", "base", PAT_MATCH_REG },
12704 { "base_sub", "base", PAT_MATCH_SUB },
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]12705
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12706 { "cook", "req.cook", PAT_MATCH_STR },
12707 { "cook_beg", "req.cook", PAT_MATCH_BEG },
12708 { "cook_dir", "req.cook", PAT_MATCH_DIR },
12709 { "cook_dom", "req.cook", PAT_MATCH_DOM },
12710 { "cook_end", "req.cook", PAT_MATCH_END },
12711 { "cook_len", "req.cook", PAT_MATCH_LEN },
12712 { "cook_reg", "req.cook", PAT_MATCH_REG },
12713 { "cook_sub", "req.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12714
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12715 { "hdr", "req.hdr", PAT_MATCH_STR },
12716 { "hdr_beg", "req.hdr", PAT_MATCH_BEG },
12717 { "hdr_dir", "req.hdr", PAT_MATCH_DIR },
12718 { "hdr_dom", "req.hdr", PAT_MATCH_DOM },
12719 { "hdr_end", "req.hdr", PAT_MATCH_END },
12720 { "hdr_len", "req.hdr", PAT_MATCH_LEN },
12721 { "hdr_reg", "req.hdr", PAT_MATCH_REG },
12722 { "hdr_sub", "req.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12723
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12724 /* these two declarations uses strings with list storage (in place
12725 * of tree storage). The basic match is PAT_MATCH_STR, but the indexation
12726 * and delete functions are relative to the list management. The parse
12727 * and match method are related to the corresponding fetch methods. This
12728 * is very particular ACL declaration mode.
12729 */
12730 { "http_auth_group", NULL, PAT_MATCH_STR, NULL, pat_idx_list_str, pat_del_list_ptr, NULL, pat_match_auth },
12731 { "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]12732
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12733 { "path", "path", PAT_MATCH_STR },
12734 { "path_beg", "path", PAT_MATCH_BEG },
12735 { "path_dir", "path", PAT_MATCH_DIR },
12736 { "path_dom", "path", PAT_MATCH_DOM },
12737 { "path_end", "path", PAT_MATCH_END },
12738 { "path_len", "path", PAT_MATCH_LEN },
12739 { "path_reg", "path", PAT_MATCH_REG },
12740 { "path_sub", "path", 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 { "req_ver", "req.ver", PAT_MATCH_STR },
12743 { "resp_ver", "res.ver", PAT_MATCH_STR },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12744
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12745 { "scook", "res.cook", PAT_MATCH_STR },
12746 { "scook_beg", "res.cook", PAT_MATCH_BEG },
12747 { "scook_dir", "res.cook", PAT_MATCH_DIR },
12748 { "scook_dom", "res.cook", PAT_MATCH_DOM },
12749 { "scook_end", "res.cook", PAT_MATCH_END },
12750 { "scook_len", "res.cook", PAT_MATCH_LEN },
12751 { "scook_reg", "res.cook", PAT_MATCH_REG },
12752 { "scook_sub", "res.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12753
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12754 { "shdr", "res.hdr", PAT_MATCH_STR },
12755 { "shdr_beg", "res.hdr", PAT_MATCH_BEG },
12756 { "shdr_dir", "res.hdr", PAT_MATCH_DIR },
12757 { "shdr_dom", "res.hdr", PAT_MATCH_DOM },
12758 { "shdr_end", "res.hdr", PAT_MATCH_END },
12759 { "shdr_len", "res.hdr", PAT_MATCH_LEN },
12760 { "shdr_reg", "res.hdr", PAT_MATCH_REG },
12761 { "shdr_sub", "res.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12762
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12763 { "url", "url", PAT_MATCH_STR },
12764 { "url_beg", "url", PAT_MATCH_BEG },
12765 { "url_dir", "url", PAT_MATCH_DIR },
12766 { "url_dom", "url", PAT_MATCH_DOM },
12767 { "url_end", "url", PAT_MATCH_END },
12768 { "url_len", "url", PAT_MATCH_LEN },
12769 { "url_reg", "url", PAT_MATCH_REG },
12770 { "url_sub", "url", 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 { "urlp", "urlp", PAT_MATCH_STR },
12773 { "urlp_beg", "urlp", PAT_MATCH_BEG },
12774 { "urlp_dir", "urlp", PAT_MATCH_DIR },
12775 { "urlp_dom", "urlp", PAT_MATCH_DOM },
12776 { "urlp_end", "urlp", PAT_MATCH_END },
12777 { "urlp_len", "urlp", PAT_MATCH_LEN },
12778 { "urlp_reg", "urlp", PAT_MATCH_REG },
12779 { "urlp_sub", "urlp", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12780
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100[diff] [blame]12781 { /* END */ },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12782}};
12783
12784/************************************************************************/
12785/* All supported pattern keywords must be declared here. */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12786/************************************************************************/
12787/* Note: must not be declared <const> as its list will be overwritten */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12788static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12789 { "base", smp_fetch_base, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12790 { "base32", smp_fetch_base32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12791 { "base32+src", smp_fetch_base32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12792
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]12793 /* capture are allocated and are permanent in the stream */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12794 { "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]12795
12796 /* retrieve these captures from the HTTP logs */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12797 { "capture.req.method", smp_fetch_capture_req_method, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12798 { "capture.req.uri", smp_fetch_capture_req_uri, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12799 { "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]12800
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12801 { "capture.res.hdr", smp_fetch_capture_header_res, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRSHP },
12802 { "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]12803
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12804 /* cookie is valid in both directions (eg: for "stick ...") but cook*
12805 * are only here to match the ACL's name, are request-only and are used
12806 * for ACL compatibility only.
12807 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12808 { "cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12809 { "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]12810 { "cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12811 { "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]12812
12813 /* hdr is valid in both directions (eg: for "stick ...") but hdr_* are
12814 * only here to match the ACL's name, are request-only and are used for
12815 * ACL compatibility only.
12816 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12817 { "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]12818 { "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]12819 { "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]12820 { "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]12821
Willy Tarreau0a0daec2013-04-02 22:44:58 +0200[diff] [blame]12822 { "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]12823 { "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]12824 { "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]12825 { "method", smp_fetch_meth, 0, NULL, SMP_T_METH, SMP_USE_HRQHP },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12826 { "path", smp_fetch_path, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]12827 { "query", smp_fetch_query, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12828
12829 /* HTTP protocol on the request path */
12830 { "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]12831 { "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]12832
12833 /* HTTP version on the request path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12834 { "req.ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
12835 { "req_ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12836
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]12837 { "req.body", smp_fetch_body, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12838 { "req.body_len", smp_fetch_body_len, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
12839 { "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]12840 { "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]12841
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]12842 { "req.hdrs", smp_fetch_hdrs, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]12843 { "req.hdrs_bin", smp_fetch_hdrs_bin, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12844
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12845 /* HTTP version on the response path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12846 { "res.ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
12847 { "resp_ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12848
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12849 /* 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]12850 { "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]12851 { "req.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12852 { "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]12853
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12854 { "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]12855 { "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]12856 { "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]12857 { "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]12858 { "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]12859 { "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]12860 { "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]12861
12862 /* 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]12863 { "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]12864 { "res.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12865 { "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]12866
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12867 { "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]12868 { "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]12869 { "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]12870 { "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]12871 { "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]12872 { "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]12873 { "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]12874
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12875 /* scook is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12876 { "scook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12877 { "scook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12878 { "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]12879 { "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]12880
12881 /* shdr is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12882 { "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]12883 { "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]12884 { "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]12885 { "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]12886
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12887 { "status", smp_fetch_stcode, 0, NULL, SMP_T_SINT, SMP_USE_HRSHP },
Thierry Fournier0e00dca2016-04-07 15:47:40 +0200[diff] [blame]12888 { "unique-id", smp_fetch_uniqueid, 0, NULL, SMP_T_STR, SMP_SRC_L4SRV },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12889 { "url", smp_fetch_url, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12890 { "url32", smp_fetch_url32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]12891 { "url32+src", smp_fetch_url32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12892 { "url_ip", smp_fetch_url_ip, 0, NULL, SMP_T_IPV4, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12893 { "url_port", smp_fetch_url_port, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]12894 { "url_param", smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12895 { "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]12896 { "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]12897 { /* END */ },
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12898}};
12899
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12900
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12901/************************************************************************/
12902/* All supported converter keywords must be declared here. */
12903/************************************************************************/
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12904/* Note: must not be declared <const> as its list will be overwritten */
12905static struct sample_conv_kw_list sample_conv_kws = {ILH, {
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12906 { "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]12907 { "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]12908 { "capture-req", smp_conv_req_capture, ARG1(1,SINT), NULL, SMP_T_STR, SMP_T_STR},
12909 { "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]12910 { "url_dec", sample_conv_url_dec, 0, NULL, SMP_T_STR, SMP_T_STR},
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12911 { NULL, NULL, 0, 0, 0 },
12912}};
12913
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12914
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12915/************************************************************************/
12916/* All supported http-request action keywords must be declared here. */
12917/************************************************************************/
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12918struct action_kw_list http_req_actions = {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12919 .kw = {
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12920 { "capture", parse_http_req_capture },
Willy Tarreau53275e82017-11-24 07:52:01 +0100[diff] [blame]12921 { "reject", parse_http_action_reject },
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12922 { "set-method", parse_set_req_line },
12923 { "set-path", parse_set_req_line },
12924 { "set-query", parse_set_req_line },
12925 { "set-uri", parse_set_req_line },
Willy Tarreaucb703b02015-04-03 09:52:01 +0200[diff] [blame]12926 { NULL, NULL }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12927 }
12928};
12929
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12930struct action_kw_list http_res_actions = {
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12931 .kw = {
12932 { "capture", parse_http_res_capture },
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12933 { "set-status", parse_http_set_status },
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12934 { NULL, NULL }
12935 }
12936};
12937
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12938__attribute__((constructor))
12939static void __http_protocol_init(void)
12940{
12941 acl_register_keywords(&acl_kws);
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]12942 sample_register_fetches(&sample_fetch_keywords);
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12943 sample_register_convs(&sample_conv_kws);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12944 http_req_keywords_register(&http_req_actions);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12945 http_res_keywords_register(&http_res_actions);
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12946 cli_register_kw(&cli_kws);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12947}
12948
12949
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]12950/*
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]12951 * Local variables:
12952 * c-indent-level: 8
12953 * c-basic-offset: 8
12954 * End:
12955 */