Gitiles
Code Review Sign In
git01.mediatek.com / haproxy / fd608dd2d212928e585da645d7d0c7089424a0de / . / src / proto_http.c
blob: f2152d6c1582a49283762b6d1dfc7bd138f781fc [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 Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2166 /* end of job, return OK */
Willy Tarreau3a816292009-07-07 10:55:49 +0200[diff] [blame]2167 req->analysers &= ~an_bit;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2168 req->analyse_exp = TICK_ETERNITY;
2169 return 1;
2170
2171 return_bad_req:
2172 /* We centralize bad requests processing here */
2173 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
2174 /* we detected a parsing error. We want to archive this request
2175 * in the dedicated proxy area for later troubleshooting.
2176 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]2177 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]2178 }
2179
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2180 txn->req.err_state = txn->req.msg_state;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2181 txn->req.msg_state = HTTP_MSG_ERROR;
2182 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]2183 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]2184
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]2185 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]2186 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]2187 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2188
2189 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2190 if (!(s->flags & SF_ERR_MASK))
2191 s->flags |= SF_ERR_PRXCOND;
2192 if (!(s->flags & SF_FINST_MASK))
2193 s->flags |= SF_FINST_R;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2194
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]2195 req->analysers &= AN_REQ_FLT_END;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2196 req->analyse_exp = TICK_ETERNITY;
2197 return 0;
2198}
2199
Willy Tarreau4f8a83c2012-06-04 00:26:23 +0200[diff] [blame]2200
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2201/* This function prepares an applet to handle the stats. It can deal with the
2202 * "100-continue" expectation, check that admin rules are met for POST requests,
2203 * and program a response message if something was unexpected. It cannot fail
2204 * 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]2205 * analysers nor counters, which are left to the caller. It does not touch
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2206 * s->target which is supposed to already point to the stats applet. The caller
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2207 * is expected to have already assigned an appctx to the stream.
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2208 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2209int http_handle_stats(struct stream *s, struct channel *req)
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2210{
2211 struct stats_admin_rule *stats_admin_rule;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]2212 struct stream_interface *si = &s->si[1];
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2213 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2214 struct http_txn *txn = s->txn;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2215 struct http_msg *msg = &txn->req;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2216 struct uri_auth *uri_auth = s->be->uri_auth;
2217 const char *uri, *h, *lookup;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2218 struct appctx *appctx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2219
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2220 appctx = si_appctx(si);
2221 memset(&appctx->ctx.stats, 0, sizeof(appctx->ctx.stats));
2222 appctx->st1 = appctx->st2 = 0;
2223 appctx->ctx.stats.st_code = STAT_STATUS_INIT;
2224 appctx->ctx.stats.flags |= STAT_FMT_HTML; /* assume HTML mode by default */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2225 if ((msg->flags & HTTP_MSGF_VER_11) && (s->txn->meth != HTTP_METH_HEAD))
Willy Tarreauaf3cf702014-04-22 22:19:53 +0200[diff] [blame]2226 appctx->ctx.stats.flags |= STAT_CHUNKED;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2227
2228 uri = msg->chn->buf->p + msg->sl.rq.u;
2229 lookup = uri + uri_auth->uri_len;
2230
2231 for (h = lookup; h <= uri + msg->sl.rq.u_l - 3; h++) {
2232 if (memcmp(h, ";up", 3) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2233 appctx->ctx.stats.flags |= STAT_HIDE_DOWN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2234 break;
2235 }
2236 }
2237
2238 if (uri_auth->refresh) {
2239 for (h = lookup; h <= uri + msg->sl.rq.u_l - 10; h++) {
2240 if (memcmp(h, ";norefresh", 10) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2241 appctx->ctx.stats.flags |= STAT_NO_REFRESH;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2242 break;
2243 }
2244 }
2245 }
2246
2247 for (h = lookup; h <= uri + msg->sl.rq.u_l - 4; h++) {
2248 if (memcmp(h, ";csv", 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2249 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2250 break;
2251 }
2252 }
2253
Willy Tarreau1e62df92016-01-11 18:57:53 +0100[diff] [blame]2254 for (h = lookup; h <= uri + msg->sl.rq.u_l - 6; h++) {
2255 if (memcmp(h, ";typed", 6) == 0) {
2256 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
2257 appctx->ctx.stats.flags |= STAT_FMT_TYPED;
2258 break;
2259 }
2260 }
2261
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2262 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
2263 if (memcmp(h, ";st=", 4) == 0) {
2264 int i;
2265 h += 4;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2266 appctx->ctx.stats.st_code = STAT_STATUS_UNKN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2267 for (i = STAT_STATUS_INIT + 1; i < STAT_STATUS_SIZE; i++) {
2268 if (strncmp(stat_status_codes[i], h, 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2269 appctx->ctx.stats.st_code = i;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2270 break;
2271 }
2272 }
2273 break;
2274 }
2275 }
2276
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2277 appctx->ctx.stats.scope_str = 0;
2278 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2279 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
2280 if (memcmp(h, STAT_SCOPE_INPUT_NAME "=", strlen(STAT_SCOPE_INPUT_NAME) + 1) == 0) {
2281 int itx = 0;
2282 const char *h2;
2283 char scope_txt[STAT_SCOPE_TXT_MAXLEN + 1];
2284 const char *err;
2285
2286 h += strlen(STAT_SCOPE_INPUT_NAME) + 1;
2287 h2 = h;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2288 appctx->ctx.stats.scope_str = h2 - msg->chn->buf->p;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2289 while (*h != ';' && *h != '\0' && *h != '&' && *h != ' ' && *h != '\n') {
2290 itx++;
2291 h++;
2292 }
2293
2294 if (itx > STAT_SCOPE_TXT_MAXLEN)
2295 itx = STAT_SCOPE_TXT_MAXLEN;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2296 appctx->ctx.stats.scope_len = itx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2297
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2298 /* 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]2299 memcpy(scope_txt, h2, itx);
2300 scope_txt[itx] = '\0';
2301 err = invalid_char(scope_txt);
2302 if (err) {
2303 /* bad char in search text => clear scope */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2304 appctx->ctx.stats.scope_str = 0;
2305 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2306 }
2307 break;
2308 }
2309 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2310
2311 /* now check whether we have some admin rules for this request */
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2312 list_for_each_entry(stats_admin_rule, &uri_auth->admin_rules, list) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2313 int ret = 1;
2314
2315 if (stats_admin_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2316 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]2317 ret = acl_pass(ret);
2318 if (stats_admin_rule->cond->pol == ACL_COND_UNLESS)
2319 ret = !ret;
2320 }
2321
2322 if (ret) {
2323 /* no rule, or the rule matches */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2324 appctx->ctx.stats.flags |= STAT_ADMIN;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2325 break;
2326 }
2327 }
2328
2329 /* Was the status page requested with a POST ? */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]2330 if (unlikely(txn->meth == HTTP_METH_POST && txn->req.body_len > 0)) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2331 if (appctx->ctx.stats.flags & STAT_ADMIN) {
Willy Tarreaucfe7fdd2014-04-26 22:08:32 +0200[diff] [blame]2332 /* we'll need the request body, possibly after sending 100-continue */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]2333 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE)
2334 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2335 appctx->st0 = STAT_HTTP_POST;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2336 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2337 else {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2338 appctx->ctx.stats.st_code = STAT_STATUS_DENY;
2339 appctx->st0 = STAT_HTTP_LAST;
de Lafond Guillaume88c278f2013-04-15 19:27:10 +0200[diff] [blame]2340 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2341 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2342 else {
2343 /* So it was another method (GET/HEAD) */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2344 appctx->st0 = STAT_HTTP_HEAD;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2345 }
2346
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2347 s->task->nice = -32; /* small boost for HTTP statistics */
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2348 return 1;
2349}
2350
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2351/* Sets the TOS header in IPv4 and the traffic class header in IPv6 packets
2352 * (as per RFC3260 #4 and BCP37 #4.2 and #5.2).
2353 */
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2354void inet_set_tos(int fd, const struct sockaddr_storage *from, int tos)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2355{
2356#ifdef IP_TOS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2357 if (from->ss_family == AF_INET)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2358 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
2359#endif
2360#ifdef IPV6_TCLASS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2361 if (from->ss_family == AF_INET6) {
2362 if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)from)->sin6_addr))
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2363 /* v4-mapped addresses need IP_TOS */
2364 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
2365 else
2366 setsockopt(fd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof(tos));
2367 }
2368#endif
2369}
2370
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2371int http_transform_header_str(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2372 const char* name, unsigned int name_len,
2373 const char *str, struct my_regex *re,
2374 int action)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2375{
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2376 struct hdr_ctx ctx;
2377 char *buf = msg->chn->buf->p;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2378 struct hdr_idx *idx = &s->txn->hdr_idx;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2379 int (*http_find_hdr_func)(const char *name, int len, char *sol,
2380 struct hdr_idx *idx, struct hdr_ctx *ctx);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2381 struct chunk *output = get_trash_chunk();
2382
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2383 ctx.idx = 0;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2384
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2385 /* Choose the header browsing function. */
2386 switch (action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2387 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2388 http_find_hdr_func = http_find_header2;
2389 break;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2390 case ACT_HTTP_REPLACE_HDR:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2391 http_find_hdr_func = http_find_full_header2;
2392 break;
2393 default: /* impossible */
2394 return -1;
2395 }
2396
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2397 while (http_find_hdr_func(name, name_len, buf, idx, &ctx)) {
2398 struct hdr_idx_elem *hdr = idx->v + ctx.idx;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2399 int delta;
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2400 char *val = ctx.line + ctx.val;
2401 char* val_end = val + ctx.vlen;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2402
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2403 if (!regex_exec_match2(re, val, val_end-val, MAX_MATCH, pmatch, 0))
2404 continue;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2405
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2406 output->len = exp_replace(output->str, output->size, val, str, pmatch);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2407 if (output->len == -1)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2408 return -1;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2409
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2410 delta = buffer_replace2(msg->chn->buf, val, val_end, output->str, output->len);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2411
2412 hdr->len += delta;
2413 http_msg_move_end(msg, delta);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2414
2415 /* Adjust the length of the current value of the index. */
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2416 ctx.vlen += delta;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2417 }
2418
2419 return 0;
2420}
2421
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2422static int http_transform_header(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2423 const char* name, unsigned int name_len,
2424 struct list *fmt, struct my_regex *re,
2425 int action)
2426{
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2427 struct chunk *replace;
2428 int ret = -1;
2429
2430 replace = alloc_trash_chunk();
2431 if (!replace)
2432 goto leave;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2433
2434 replace->len = build_logline(s, replace->str, replace->size, fmt);
2435 if (replace->len >= replace->size - 1)
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2436 goto leave;
2437
2438 ret = http_transform_header_str(s, msg, name, name_len, replace->str, re, action);
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2439
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2440 leave:
2441 free_trash_chunk(replace);
2442 return ret;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2443}
2444
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2445/* Executes the http-request rules <rules> for stream <s>, proxy <px> and
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2446 * transaction <txn>. Returns the verdict of the first rule that prevents
2447 * further processing of the request (auth, deny, ...), and defaults to
2448 * HTTP_RULE_RES_STOP if it executed all rules or stopped on an allow, or
2449 * 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]2450 * on txn->flags if it encounters a tarpit rule. If <deny_status> is not NULL
2451 * and a deny/tarpit rule is matched, it will be filled with this rule's deny
2452 * status.
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2453 */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2454enum rule_result
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2455http_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]2456{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2457 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2458 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]2459 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]2460 struct act_rule *rule;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]2461 struct hdr_ctx ctx;
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]2462 const char *auth_realm;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2463 int act_flags = 0;
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2464 int len;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2465
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2466 /* If "the current_rule_list" match the executed rule list, we are in
2467 * resume condition. If a resume is needed it is always in the action
2468 * and never in the ACL or converters. In this case, we initialise the
2469 * current rule, and go to the action execution point.
2470 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2471 if (s->current_rule) {
2472 rule = s->current_rule;
2473 s->current_rule = NULL;
2474 if (s->current_rule_list == rules)
2475 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2476 }
2477 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2478
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2479 list_for_each_entry(rule, rules, list) {
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2480
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2481 /* check optional condition */
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2482 if (rule->cond) {
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2483 int ret;
2484
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2485 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]2486 ret = acl_pass(ret);
2487
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2488 if (rule->cond->pol == ACL_COND_UNLESS)
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2489 ret = !ret;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2490
2491 if (!ret) /* condition not matched */
2492 continue;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2493 }
2494
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2495 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2496resume_execution:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2497 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2498 case ACT_ACTION_ALLOW:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2499 return HTTP_RULE_RES_STOP;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2500
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2501 case ACT_ACTION_DENY:
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2502 if (deny_status)
2503 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2504 return HTTP_RULE_RES_DENY;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2505
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2506 case ACT_HTTP_REQ_TARPIT:
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]2507 txn->flags |= TX_CLTARPIT;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2508 if (deny_status)
2509 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2510 return HTTP_RULE_RES_DENY;
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]2511
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2512 case ACT_HTTP_REQ_AUTH:
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]2513 /* Auth might be performed on regular http-req rules as well as on stats */
2514 auth_realm = rule->arg.auth.realm;
2515 if (!auth_realm) {
2516 if (px->uri_auth && rules == &px->uri_auth->http_req_rules)
2517 auth_realm = STATS_DEFAULT_REALM;
2518 else
2519 auth_realm = px->id;
2520 }
2521 /* send 401/407 depending on whether we use a proxy or not. We still
2522 * count one error, because normal browsing won't significantly
2523 * increase the counter but brute force attempts will.
2524 */
2525 chunk_printf(&trash, (txn->flags & TX_USE_PX_CONN) ? HTTP_407_fmt : HTTP_401_fmt, auth_realm);
2526 txn->status = (txn->flags & TX_USE_PX_CONN) ? 407 : 401;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2527 http_reply_and_close(s, txn->status, &trash);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2528 stream_inc_http_err_ctr(s);
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2529 return HTTP_RULE_RES_ABRT;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2530
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2531 case ACT_HTTP_REDIR:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2532 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
2533 return HTTP_RULE_RES_BADREQ;
2534 return HTTP_RULE_RES_DONE;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]2535
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2536 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]2537 s->task->nice = rule->arg.nice;
2538 break;
2539
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2540 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2541 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2542 inet_set_tos(cli_conn->handle.fd, &cli_conn->addr.from, rule->arg.tos);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]2543 break;
2544
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2545 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2546#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2547 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2548 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]2549#endif
2550 break;
2551
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2552 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]2553 s->logs.level = rule->arg.loglevel;
2554 break;
2555
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2556 case ACT_HTTP_REPLACE_HDR:
2557 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2558 if (http_transform_header(s, &txn->req, rule->arg.hdr_add.name,
2559 rule->arg.hdr_add.name_len,
2560 &rule->arg.hdr_add.fmt,
2561 &rule->arg.hdr_add.re, rule->action))
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2562 return HTTP_RULE_RES_BADREQ;
2563 break;
2564
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2565 case ACT_HTTP_DEL_HDR:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2566 ctx.idx = 0;
2567 /* remove all occurrences of the header */
2568 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2569 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
2570 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]2571 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2572 break;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2573
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2574 case ACT_HTTP_SET_HDR:
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2575 case ACT_HTTP_ADD_HDR: {
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2576 /* The scope of the trash buffer must be limited to this function. The
2577 * build_logline() function can execute a lot of other function which
2578 * can use the trash buffer. So for limiting the scope of this global
2579 * buffer, we build first the header value using build_logline, and
2580 * after we store the header name.
2581 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2582 struct chunk *replace;
2583
2584 replace = alloc_trash_chunk();
2585 if (!replace)
2586 return HTTP_RULE_RES_BADREQ;
2587
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2588 len = rule->arg.hdr_add.name_len + 2,
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2589 len += build_logline(s, replace->str + len, replace->size - len, &rule->arg.hdr_add.fmt);
2590 memcpy(replace->str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
2591 replace->str[rule->arg.hdr_add.name_len] = ':';
2592 replace->str[rule->arg.hdr_add.name_len + 1] = ' ';
2593 replace->len = len;
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2594
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2595 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2596 /* remove all occurrences of the header */
2597 ctx.idx = 0;
2598 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2599 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
2600 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
2601 }
2602 }
2603
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2604 http_header_add_tail2(&txn->req, &txn->hdr_idx, replace->str, replace->len);
2605
2606 free_trash_chunk(replace);
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2607 break;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2608 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2609
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2610 case ACT_HTTP_DEL_ACL:
2611 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2612 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2613 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2614
2615 /* collect reference */
2616 ref = pat_ref_lookup(rule->arg.map.ref);
2617 if (!ref)
2618 continue;
2619
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2620 /* allocate key */
2621 key = alloc_trash_chunk();
2622 if (!key)
2623 return HTTP_RULE_RES_BADREQ;
2624
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2625 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2626 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2627 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2628
2629 /* perform update */
2630 /* returned code: 1=ok, 0=ko */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2631 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2632 pat_ref_delete(ref, key->str);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2633 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2634
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2635 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2636 break;
2637 }
2638
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2639 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2640 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2641 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2642
2643 /* collect reference */
2644 ref = pat_ref_lookup(rule->arg.map.ref);
2645 if (!ref)
2646 continue;
2647
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2648 /* allocate key */
2649 key = alloc_trash_chunk();
2650 if (!key)
2651 return HTTP_RULE_RES_BADREQ;
2652
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2653 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2654 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2655 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2656
2657 /* perform update */
2658 /* add entry only if it does not already exist */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2659 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2660 if (pat_ref_find_elt(ref, key->str) == NULL)
2661 pat_ref_add(ref, key->str, NULL, NULL);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2662 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2663
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2664 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2665 break;
2666 }
2667
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2668 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2669 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2670 struct chunk *key, *value;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2671
2672 /* collect reference */
2673 ref = pat_ref_lookup(rule->arg.map.ref);
2674 if (!ref)
2675 continue;
2676
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2677 /* allocate key */
2678 key = alloc_trash_chunk();
2679 if (!key)
2680 return HTTP_RULE_RES_BADREQ;
2681
2682 /* allocate value */
2683 value = alloc_trash_chunk();
2684 if (!value) {
2685 free_trash_chunk(key);
2686 return HTTP_RULE_RES_BADREQ;
2687 }
2688
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2689 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2690 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2691 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2692
2693 /* collect value */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2694 value->len = build_logline(s, value->str, value->size, &rule->arg.map.value);
2695 value->str[value->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2696
2697 /* perform update */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2698 if (pat_ref_find_elt(ref, key->str) != NULL)
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2699 /* update entry if it exists */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2700 pat_ref_set(ref, key->str, value->str, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2701 else
2702 /* insert a new entry */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2703 pat_ref_add(ref, key->str, value->str, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2704
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2705 free_trash_chunk(key);
2706 free_trash_chunk(value);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2707 break;
2708 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]2709
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]2710 case ACT_CUSTOM:
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2711 if ((px->options & PR_O_ABRT_CLOSE) && (s->req.flags & (CF_SHUTR|CF_READ_NULL|CF_READ_ERROR)))
2712 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]2713
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2714 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]2715 case ACT_RET_ERR:
2716 case ACT_RET_CONT:
2717 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]2718 case ACT_RET_STOP:
2719 return HTTP_RULE_RES_DONE;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]2720 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2721 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2722 return HTTP_RULE_RES_YIELD;
2723 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]2724 break;
2725
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2726 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2727 /* Note: only the first valid tracking parameter of each
2728 * applies.
2729 */
2730
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2731 if (stkctr_entry(&s->stkctr[trk_idx(rule->action)]) == NULL) {
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2732 struct stktable *t;
2733 struct stksess *ts;
2734 struct stktable_key *key;
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]2735 void *ptr1, *ptr2;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2736
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]2737 t = rule->arg.trk_ctr.table.t;
2738 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]2739
2740 if (key && (ts = stktable_get_entry(t, key))) {
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2741 stream_track_stkctr(&s->stkctr[trk_idx(rule->action)], t, ts);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2742
2743 /* 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]2744 ptr1 = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
2745 ptr2 = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
2746 if (ptr1 || ptr2) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2747 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2748
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]2749 if (ptr1)
2750 stktable_data_cast(ptr1, http_req_cnt)++;
2751
2752 if (ptr2)
2753 update_freq_ctr_period(&stktable_data_cast(ptr2, http_req_rate),
2754 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
2755
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2756 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun0fed0b02017-11-29 16:15:07 +0100[diff] [blame]2757
2758 /* If data was modified, we need to touch to re-schedule sync */
2759 stktable_touch_local(t, ts, 0);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]2760 }
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2761
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2762 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2763 if (sess->fe != s->be)
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2764 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2765 }
2766 }
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]2767 break;
2768
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]2769 /* other flags exists, but normaly, they never be matched. */
2770 default:
2771 break;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2772 }
2773 }
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2774
2775 /* we reached the end of the rules, nothing to report */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2776 return HTTP_RULE_RES_CONT;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2777}
2778
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]2779
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]2780/* Executes the http-response rules <rules> for stream <s> and proxy <px>. It
2781 * returns one of 5 possible statuses: HTTP_RULE_RES_CONT, HTTP_RULE_RES_STOP,
2782 * HTTP_RULE_RES_DONE, HTTP_RULE_RES_YIELD, or HTTP_RULE_RES_BADREQ. If *CONT
2783 * is returned, the process can continue the evaluation of next rule list. If
2784 * *STOP or *DONE is returned, the process must stop the evaluation. If *BADREQ
2785 * is returned, it means the operation could not be processed and a server error
2786 * must be returned. It may set the TX_SVDENY on txn->flags if it encounters a
2787 * deny rule. If *YIELD is returned, the caller must call again the function
2788 * with the same context.
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2789 */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2790static enum rule_result
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2791http_res_get_intercept_rule(struct proxy *px, struct list *rules, struct stream *s)
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2792{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2793 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2794 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]2795 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]2796 struct act_rule *rule;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2797 struct hdr_ctx ctx;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2798 int act_flags = 0;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2799
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2800 /* If "the current_rule_list" match the executed rule list, we are in
2801 * resume condition. If a resume is needed it is always in the action
2802 * and never in the ACL or converters. In this case, we initialise the
2803 * current rule, and go to the action execution point.
2804 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2805 if (s->current_rule) {
2806 rule = s->current_rule;
2807 s->current_rule = NULL;
2808 if (s->current_rule_list == rules)
2809 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2810 }
2811 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2812
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2813 list_for_each_entry(rule, rules, list) {
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2814
2815 /* check optional condition */
2816 if (rule->cond) {
2817 int ret;
2818
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2819 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]2820 ret = acl_pass(ret);
2821
2822 if (rule->cond->pol == ACL_COND_UNLESS)
2823 ret = !ret;
2824
2825 if (!ret) /* condition not matched */
2826 continue;
2827 }
2828
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2829 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2830resume_execution:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2831 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2832 case ACT_ACTION_ALLOW:
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2833 return HTTP_RULE_RES_STOP; /* "allow" rules are OK */
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2834
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2835 case ACT_ACTION_DENY:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2836 txn->flags |= TX_SVDENY;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2837 return HTTP_RULE_RES_STOP;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2838
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2839 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]2840 s->task->nice = rule->arg.nice;
2841 break;
2842
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2843 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2844 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2845 inet_set_tos(cli_conn->handle.fd, &cli_conn->addr.from, rule->arg.tos);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]2846 break;
2847
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2848 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2849#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2850 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2851 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]2852#endif
2853 break;
2854
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2855 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]2856 s->logs.level = rule->arg.loglevel;
2857 break;
2858
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2859 case ACT_HTTP_REPLACE_HDR:
2860 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2861 if (http_transform_header(s, &txn->rsp, rule->arg.hdr_add.name,
2862 rule->arg.hdr_add.name_len,
2863 &rule->arg.hdr_add.fmt,
2864 &rule->arg.hdr_add.re, rule->action))
Christopher Fauletcdade942017-02-08 12:41:31 +0100[diff] [blame]2865 return HTTP_RULE_RES_BADREQ;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2866 break;
2867
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2868 case ACT_HTTP_DEL_HDR:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2869 ctx.idx = 0;
2870 /* remove all occurrences of the header */
2871 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2872 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
2873 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
2874 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2875 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2876
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2877 case ACT_HTTP_SET_HDR:
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2878 case ACT_HTTP_ADD_HDR: {
2879 struct chunk *replace;
2880
2881 replace = alloc_trash_chunk();
2882 if (!replace)
2883 return HTTP_RULE_RES_BADREQ;
2884
2885 chunk_printf(replace, "%s: ", rule->arg.hdr_add.name);
2886 memcpy(replace->str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
2887 replace->len = rule->arg.hdr_add.name_len;
2888 replace->str[replace->len++] = ':';
2889 replace->str[replace->len++] = ' ';
2890 replace->len += build_logline(s, replace->str + replace->len, replace->size - replace->len,
2891 &rule->arg.hdr_add.fmt);
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2892
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2893 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2894 /* remove all occurrences of the header */
2895 ctx.idx = 0;
2896 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2897 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
2898 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
2899 }
2900 }
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2901 http_header_add_tail2(&txn->rsp, &txn->hdr_idx, replace->str, replace->len);
2902
2903 free_trash_chunk(replace);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2904 break;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2905 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2906
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2907 case ACT_HTTP_DEL_ACL:
2908 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2909 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2910 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2911
2912 /* collect reference */
2913 ref = pat_ref_lookup(rule->arg.map.ref);
2914 if (!ref)
2915 continue;
2916
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2917 /* allocate key */
2918 key = alloc_trash_chunk();
2919 if (!key)
2920 return HTTP_RULE_RES_BADREQ;
2921
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2922 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2923 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2924 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2925
2926 /* perform update */
2927 /* returned code: 1=ok, 0=ko */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2928 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2929 pat_ref_delete(ref, key->str);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2930 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2931
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2932 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2933 break;
2934 }
2935
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2936 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2937 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2938 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2939
2940 /* collect reference */
2941 ref = pat_ref_lookup(rule->arg.map.ref);
2942 if (!ref)
2943 continue;
2944
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2945 /* allocate key */
2946 key = alloc_trash_chunk();
2947 if (!key)
2948 return HTTP_RULE_RES_BADREQ;
2949
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2950 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2951 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2952 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2953
2954 /* perform update */
2955 /* check if the entry already exists */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2956 if (pat_ref_find_elt(ref, key->str) == NULL)
2957 pat_ref_add(ref, key->str, NULL, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2958
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2959 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2960 break;
2961 }
2962
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2963 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2964 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2965 struct chunk *key, *value;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2966
2967 /* collect reference */
2968 ref = pat_ref_lookup(rule->arg.map.ref);
2969 if (!ref)
2970 continue;
2971
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2972 /* allocate key */
2973 key = alloc_trash_chunk();
2974 if (!key)
2975 return HTTP_RULE_RES_BADREQ;
2976
2977 /* allocate value */
2978 value = alloc_trash_chunk();
2979 if (!value) {
2980 free_trash_chunk(key);
2981 return HTTP_RULE_RES_BADREQ;
2982 }
2983
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2984 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2985 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2986 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2987
2988 /* collect value */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2989 value->len = build_logline(s, value->str, value->size, &rule->arg.map.value);
2990 value->str[value->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2991
2992 /* perform update */
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]2993 HA_SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2994 if (pat_ref_find_elt(ref, key->str) != NULL)
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2995 /* update entry if it exists */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2996 pat_ref_set(ref, key->str, value->str, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2997 else
2998 /* insert a new entry */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2999 pat_ref_add(ref, key->str, value->str, NULL);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3000 HA_SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]3001 free_trash_chunk(key);
3002 free_trash_chunk(value);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3003 break;
3004 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3005
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3006 case ACT_HTTP_REDIR:
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3007 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
3008 return HTTP_RULE_RES_BADREQ;
3009 return HTTP_RULE_RES_DONE;
3010
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3011 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
3012 /* Note: only the first valid tracking parameter of each
3013 * applies.
3014 */
3015
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]3016 if (stkctr_entry(&s->stkctr[trk_idx(rule->action)]) == NULL) {
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3017 struct stktable *t;
3018 struct stksess *ts;
3019 struct stktable_key *key;
3020 void *ptr;
3021
3022 t = rule->arg.trk_ctr.table.t;
3023 key = stktable_fetch_key(t, s->be, sess, s, SMP_OPT_DIR_RES | SMP_OPT_FINAL, rule->arg.trk_ctr.expr, NULL);
3024
3025 if (key && (ts = stktable_get_entry(t, key))) {
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]3026 stream_track_stkctr(&s->stkctr[trk_idx(rule->action)], t, ts);
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3027
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3028 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3029
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3030 /* let's count a new HTTP request as it's the first time we do it */
3031 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
3032 if (ptr)
3033 stktable_data_cast(ptr, http_req_cnt)++;
3034
3035 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
3036 if (ptr)
3037 update_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
3038 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
3039
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3040 /* When the client triggers a 4xx from the server, it's most often due
3041 * to a missing object or permission. These events should be tracked
3042 * because if they happen often, it may indicate a brute force or a
3043 * vulnerability scan. Normally this is done when receiving the response
3044 * but here we're tracking after this ought to have been done so we have
3045 * to do it on purpose.
3046 */
Willy Tarreau3146a4c2016-07-26 15:22:33 +0200[diff] [blame]3047 if ((unsigned)(txn->status - 400) < 100) {
3048 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_ERR_CNT);
3049 if (ptr)
3050 stktable_data_cast(ptr, http_err_cnt)++;
3051
3052 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_ERR_RATE);
3053 if (ptr)
3054 update_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
3055 t->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u, 1);
3056 }
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3057
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]3058 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3059
Emeric Brun0fed0b02017-11-29 16:15:07 +0100[diff] [blame]3060 /* If data was modified, we need to touch to re-schedule sync */
3061 stktable_touch_local(t, ts, 0);
3062
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3063 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
3064 if (sess->fe != s->be)
3065 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
3066
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3067 }
3068 }
3069 break;
3070
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3071 case ACT_CUSTOM:
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3072 if ((px->options & PR_O_ABRT_CLOSE) && (s->req.flags & (CF_SHUTR|CF_READ_NULL|CF_READ_ERROR)))
3073 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]3074
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3075 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3076 case ACT_RET_ERR:
3077 case ACT_RET_CONT:
3078 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3079 case ACT_RET_STOP:
3080 return HTTP_RULE_RES_STOP;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3081 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3082 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3083 return HTTP_RULE_RES_YIELD;
3084 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3085 break;
3086
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]3087 /* other flags exists, but normaly, they never be matched. */
3088 default:
3089 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3090 }
3091 }
3092
3093 /* we reached the end of the rules, nothing to report */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3094 return HTTP_RULE_RES_CONT;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3095}
3096
3097
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3098/* Perform an HTTP redirect based on the information in <rule>. The function
3099 * returns non-zero on success, or zero in case of a, irrecoverable error such
3100 * as too large a request to build a valid response.
3101 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3102static 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]3103{
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3104 struct http_msg *req = &txn->req;
3105 struct http_msg *res = &txn->rsp;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3106 const char *msg_fmt;
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3107 struct chunk *chunk;
3108 int ret = 0;
3109
3110 chunk = alloc_trash_chunk();
3111 if (!chunk)
3112 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3113
3114 /* build redirect message */
3115 switch(rule->code) {
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]3116 case 308:
3117 msg_fmt = HTTP_308;
3118 break;
3119 case 307:
3120 msg_fmt = HTTP_307;
3121 break;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3122 case 303:
3123 msg_fmt = HTTP_303;
3124 break;
3125 case 301:
3126 msg_fmt = HTTP_301;
3127 break;
3128 case 302:
3129 default:
3130 msg_fmt = HTTP_302;
3131 break;
3132 }
3133
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3134 if (unlikely(!chunk_strcpy(chunk, msg_fmt)))
3135 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3136
3137 switch(rule->type) {
3138 case REDIRECT_TYPE_SCHEME: {
3139 const char *path;
3140 const char *host;
3141 struct hdr_ctx ctx;
3142 int pathlen;
3143 int hostlen;
3144
3145 host = "";
3146 hostlen = 0;
3147 ctx.idx = 0;
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3148 if (http_find_header2("Host", 4, req->chn->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3149 host = ctx.line + ctx.val;
3150 hostlen = ctx.vlen;
3151 }
3152
3153 path = http_get_path(txn);
3154 /* build message using path */
3155 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3156 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]3157 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3158 int qs = 0;
3159 while (qs < pathlen) {
3160 if (path[qs] == '?') {
3161 pathlen = qs;
3162 break;
3163 }
3164 qs++;
3165 }
3166 }
3167 } else {
3168 path = "/";
3169 pathlen = 1;
3170 }
3171
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3172 if (rule->rdr_str) { /* this is an old "redirect" rule */
3173 /* check if we can add scheme + "://" + host + path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3174 if (chunk->len + rule->rdr_len + 3 + hostlen + pathlen > chunk->size - 4)
3175 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3176
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3177 /* add scheme */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3178 memcpy(chunk->str + chunk->len, rule->rdr_str, rule->rdr_len);
3179 chunk->len += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3180 }
3181 else {
3182 /* add scheme with executing log format */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3183 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]3184
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3185 /* check if we can add scheme + "://" + host + path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3186 if (chunk->len + 3 + hostlen + pathlen > chunk->size - 4)
3187 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3188 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3189 /* add "://" */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3190 memcpy(chunk->str + chunk->len, "://", 3);
3191 chunk->len += 3;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3192
3193 /* add host */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3194 memcpy(chunk->str + chunk->len, host, hostlen);
3195 chunk->len += hostlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3196
3197 /* add path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3198 memcpy(chunk->str + chunk->len, path, pathlen);
3199 chunk->len += pathlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3200
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3201 /* append a slash at the end of the location if needed and missing */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3202 if (chunk->len && chunk->str[chunk->len - 1] != '/' &&
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3203 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3204 if (chunk->len > chunk->size - 5)
3205 goto leave;
3206 chunk->str[chunk->len] = '/';
3207 chunk->len++;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3208 }
3209
3210 break;
3211 }
3212 case REDIRECT_TYPE_PREFIX: {
3213 const char *path;
3214 int pathlen;
3215
3216 path = http_get_path(txn);
3217 /* build message using path */
3218 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3219 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]3220 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3221 int qs = 0;
3222 while (qs < pathlen) {
3223 if (path[qs] == '?') {
3224 pathlen = qs;
3225 break;
3226 }
3227 qs++;
3228 }
3229 }
3230 } else {
3231 path = "/";
3232 pathlen = 1;
3233 }
3234
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3235 if (rule->rdr_str) { /* this is an old "redirect" rule */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3236 if (chunk->len + rule->rdr_len + pathlen > chunk->size - 4)
3237 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3238
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3239 /* add prefix. Note that if prefix == "/", we don't want to
3240 * add anything, otherwise it makes it hard for the user to
3241 * configure a self-redirection.
3242 */
3243 if (rule->rdr_len != 1 || *rule->rdr_str != '/') {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3244 memcpy(chunk->str + chunk->len, rule->rdr_str, rule->rdr_len);
3245 chunk->len += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3246 }
3247 }
3248 else {
3249 /* add prefix with executing log format */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3250 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]3251
3252 /* Check length */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3253 if (chunk->len + pathlen > chunk->size - 4)
3254 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3255 }
3256
3257 /* add path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3258 memcpy(chunk->str + chunk->len, path, pathlen);
3259 chunk->len += pathlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3260
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3261 /* append a slash at the end of the location if needed and missing */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3262 if (chunk->len && chunk->str[chunk->len - 1] != '/' &&
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3263 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3264 if (chunk->len > chunk->size - 5)
3265 goto leave;
3266 chunk->str[chunk->len] = '/';
3267 chunk->len++;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3268 }
3269
3270 break;
3271 }
3272 case REDIRECT_TYPE_LOCATION:
3273 default:
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3274 if (rule->rdr_str) { /* this is an old "redirect" rule */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3275 if (chunk->len + rule->rdr_len > chunk->size - 4)
3276 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3277
3278 /* add location */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3279 memcpy(chunk->str + chunk->len, rule->rdr_str, rule->rdr_len);
3280 chunk->len += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3281 }
3282 else {
3283 /* add location with executing log format */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3284 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]3285
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3286 /* Check left length */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3287 if (chunk->len > chunk->size - 4)
3288 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3289 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3290 break;
3291 }
3292
3293 if (rule->cookie_len) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3294 memcpy(chunk->str + chunk->len, "\r\nSet-Cookie: ", 14);
3295 chunk->len += 14;
3296 memcpy(chunk->str + chunk->len, rule->cookie_str, rule->cookie_len);
3297 chunk->len += rule->cookie_len;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3298 }
3299
Willy Tarreau19b14122017-02-28 09:48:11 +0100[diff] [blame]3300 /* add end of headers and the keep-alive/close status. */
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3301 txn->status = rule->code;
3302 /* let's log the request time */
3303 s->logs.tv_request = now;
3304
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3305 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]3306 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
3307 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
3308 /* keep-alive possible */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3309 if (!(req->flags & HTTP_MSGF_VER_11)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3310 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3311 memcpy(chunk->str + chunk->len, "\r\nProxy-Connection: keep-alive", 30);
3312 chunk->len += 30;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3313 } else {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3314 memcpy(chunk->str + chunk->len, "\r\nConnection: keep-alive", 24);
3315 chunk->len += 24;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3316 }
3317 }
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3318 memcpy(chunk->str + chunk->len, "\r\n\r\n", 4);
3319 chunk->len += 4;
3320 FLT_STRM_CB(s, flt_http_reply(s, txn->status, chunk));
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]3321 co_inject(res->chn, chunk->str, chunk->len);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3322 /* "eat" the request */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3323 bi_fast_delete(req->chn->buf, req->sov);
3324 req->next -= req->sov;
3325 req->sov = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3326 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]3327 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]3328 req->msg_state = HTTP_MSG_CLOSED;
3329 res->msg_state = HTTP_MSG_DONE;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3330 /* Trim any possible response */
3331 res->chn->buf->i = 0;
3332 res->next = res->sov = 0;
Christopher Faulet5d468ca2017-09-11 09:27:29 +0200[diff] [blame]3333 /* let the server side turn to SI_ST_CLO */
3334 channel_shutw_now(req->chn);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3335 } else {
3336 /* keep-alive not possible */
3337 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3338 memcpy(chunk->str + chunk->len, "\r\nProxy-Connection: close\r\n\r\n", 29);
3339 chunk->len += 29;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3340 } else {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3341 memcpy(chunk->str + chunk->len, "\r\nConnection: close\r\n\r\n", 23);
3342 chunk->len += 23;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3343 }
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3344 http_reply_and_close(s, txn->status, chunk);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3345 req->chn->analysers &= AN_REQ_FLT_END;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3346 }
3347
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3348 if (!(s->flags & SF_ERR_MASK))
3349 s->flags |= SF_ERR_LOCAL;
3350 if (!(s->flags & SF_FINST_MASK))
3351 s->flags |= SF_FINST_R;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3352
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3353 ret = 1;
3354 leave:
3355 free_trash_chunk(chunk);
3356 return ret;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3357}
3358
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3359/* This stream analyser runs all HTTP request processing which is common to
3360 * frontends and backends, which means blocking ACLs, filters, connection-close,
3361 * reqadd, stats and redirects. This is performed for the designated proxy.
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3362 * 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]3363 * either needs more data or wants to immediately abort the request (eg: deny,
3364 * error, ...).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3365 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3366int 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]3367{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3368 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3369 struct http_txn *txn = s->txn;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3370 struct http_msg *msg = &txn->req;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3371 struct redirect_rule *rule;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100[diff] [blame]3372 struct cond_wordlist *wl;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3373 enum rule_result verdict;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3374 int deny_status = HTTP_ERR_403;
Olivier Houchardc2aae742017-09-22 18:26:28 +0200[diff] [blame]3375 struct connection *conn = objt_conn(sess->origin);
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3376
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]3377 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3378 /* we need more data */
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3379 goto return_prx_yield;
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3380 }
3381
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3382 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]3383 now_ms, __FUNCTION__,
3384 s,
3385 req,
3386 req->rex, req->wex,
3387 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3388 req->buf->i,
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3389 req->analysers);
3390
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]3391 /* just in case we have some per-backend tracking */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3392 stream_inc_be_http_req_ctr(s);
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]3393
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3394 /* evaluate http-request rules */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3395 if (!LIST_ISEMPTY(&px->http_req_rules)) {
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3396 verdict = http_req_get_intercept_rule(px, &px->http_req_rules, s, &deny_status);
Willy Tarreau51425942010-02-01 10:40:19 +0100[diff] [blame]3397
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3398 switch (verdict) {
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3399 case HTTP_RULE_RES_YIELD: /* some data miss, call the function later. */
3400 goto return_prx_yield;
3401
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3402 case HTTP_RULE_RES_CONT:
3403 case HTTP_RULE_RES_STOP: /* nothing to do */
3404 break;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3405
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3406 case HTTP_RULE_RES_DENY: /* deny or tarpit */
3407 if (txn->flags & TX_CLTARPIT)
3408 goto tarpit;
3409 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3410
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3411 case HTTP_RULE_RES_ABRT: /* abort request, response already sent. Eg: auth */
3412 goto return_prx_cond;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3413
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3414 case HTTP_RULE_RES_DONE: /* OK, but terminate request processing (eg: redirect) */
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3415 goto done;
3416
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3417 case HTTP_RULE_RES_BADREQ: /* failed with a bad request */
3418 goto return_bad_req;
3419 }
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3420 }
3421
Olivier Houchardc2aae742017-09-22 18:26:28 +0200[diff] [blame]3422 if (conn && conn->flags & CO_FL_EARLY_DATA) {
3423 struct hdr_ctx ctx;
3424
3425 ctx.idx = 0;
3426 if (!http_find_header2("Early-Data", strlen("Early-Data"),
3427 s->req.buf->p, &txn->hdr_idx, &ctx)) {
3428 if (unlikely(http_header_add_tail2(&txn->req,
3429 &txn->hdr_idx, "Early-Data: 1",
3430 strlen("Early-Data: 1"))) < 0) {
3431 goto return_bad_req;
3432 }
3433 }
3434
3435 }
3436
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3437 /* OK at this stage, we know that the request was accepted according to
3438 * the http-request rules, we can check for the stats. Note that the
3439 * URI is detected *before* the req* rules in order not to be affected
3440 * by a possible reqrep, while they are processed *after* so that a
3441 * reqdeny can still block them. This clearly needs to change in 1.6!
3442 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]3443 if (stats_check_uri(&s->si[1], txn, px)) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3444 s->target = &http_stats_applet.obj_type;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]3445 if (unlikely(!stream_int_register_handler(&s->si[1], objt_applet(s->target)))) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3446 txn->status = 500;
3447 s->logs.tv_request = now;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3448 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3449
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3450 if (!(s->flags & SF_ERR_MASK))
3451 s->flags |= SF_ERR_RESOURCE;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3452 goto return_prx_cond;
3453 }
3454
3455 /* parse the whole stats request and extract the relevant information */
3456 http_handle_stats(s, req);
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3457 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]3458 /* not all actions implemented: deny, allow, auth */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3459
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3460 if (verdict == HTTP_RULE_RES_DENY) /* stats http-request deny */
3461 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3462
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3463 if (verdict == HTTP_RULE_RES_ABRT) /* stats auth / stats http-request auth */
3464 goto return_prx_cond;
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +0100[diff] [blame]3465 }
3466
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3467 /* evaluate the req* rules except reqadd */
3468 if (px->req_exp != NULL) {
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]3469 if (apply_filters_to_request(s, req, px) < 0)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3470 goto return_bad_req;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3471
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3472 if (txn->flags & TX_CLDENY)
3473 goto deny;
Willy Tarreauc465fd72009-08-31 00:17:18 +0200[diff] [blame]3474
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3475 if (txn->flags & TX_CLTARPIT) {
3476 deny_status = HTTP_ERR_500;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3477 goto tarpit;
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3478 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3479 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3480
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3481 /* add request headers from the rule sets in the same order */
3482 list_for_each_entry(wl, &px->req_add, list) {
3483 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3484 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]3485 ret = acl_pass(ret);
3486 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
3487 ret = !ret;
3488 if (!ret)
3489 continue;
3490 }
3491
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]3492 if (unlikely(http_header_add_tail(&txn->req, &txn->hdr_idx, wl->s) < 0))
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3493 goto return_bad_req;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]3494 }
3495
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3496
3497 /* Proceed with the stats now. */
William Lallemand71bd11a2017-11-20 19:13:14 +0100[diff] [blame]3498 if (unlikely(objt_applet(s->target) == &http_stats_applet) ||
3499 unlikely(objt_applet(s->target) == &http_cache_applet)) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3500 /* process the stats request now */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3501 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]3502 HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3503
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3504 if (!(s->flags & SF_ERR_MASK)) // this is not really an error but it is
3505 s->flags |= SF_ERR_LOCAL; // to mark that it comes from the proxy
3506 if (!(s->flags & SF_FINST_MASK))
3507 s->flags |= SF_FINST_R;
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3508
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]3509 /* 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]3510 req->analysers &= (AN_REQ_HTTP_BODY | AN_REQ_FLT_HTTP_HDRS | AN_REQ_FLT_END);
3511 req->analysers &= ~AN_REQ_FLT_XFER_DATA;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]3512 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3513 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3514 }
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]3515
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3516 /* check whether we have some ACLs set to redirect this request */
3517 list_for_each_entry(rule, &px->redirect_rules, list) {
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]3518 if (rule->cond) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3519 int ret;
3520
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3521 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]3522 ret = acl_pass(ret);
3523 if (rule->cond->pol == ACL_COND_UNLESS)
3524 ret = !ret;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3525 if (!ret)
3526 continue;
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]3527 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3528 if (!http_apply_redirect_rule(rule, s, txn))
3529 goto return_bad_req;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3530 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3531 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]3532
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]3533 /* POST requests may be accompanied with an "Expect: 100-Continue" header.
3534 * If this happens, then the data will not come immediately, so we must
3535 * send all what we have without waiting. Note that due to the small gain
3536 * 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]3537 * 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]3538 * itself once used.
3539 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]3540 req->flags |= CF_SEND_DONTWAIT;
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]3541
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3542 done: /* done with this analyser, continue with next ones that the calling
3543 * points will have set, if any.
3544 */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3545 req->analyse_exp = TICK_ETERNITY;
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]3546 done_without_exp: /* done with this analyser, but dont reset the analyse_exp. */
3547 req->analysers &= ~an_bit;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3548 return 1;
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]3549
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3550 tarpit:
Willy Tarreau6a0bca92017-06-11 17:56:27 +0200[diff] [blame]3551 /* Allow cookie logging
3552 */
3553 if (s->be->cookie_name || sess->fe->capture_name)
3554 manage_client_side_cookies(s, req);
3555
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3556 /* When a connection is tarpitted, we use the tarpit timeout,
3557 * which may be the same as the connect timeout if unspecified.
3558 * If unset, then set it to zero because we really want it to
3559 * eventually expire. We build the tarpit as an analyser.
3560 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]3561 channel_erase(&s->req);
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3562
3563 /* wipe the request out so that we can drop the connection early
3564 * if the client closes first.
3565 */
3566 channel_dont_connect(req);
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3567
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3568 txn->status = http_err_codes[deny_status];
3569
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3570 req->analysers &= AN_REQ_FLT_END; /* remove switching rules etc... */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3571 req->analysers |= AN_REQ_HTTP_TARPIT;
3572 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.tarpit);
3573 if (!req->analyse_exp)
3574 req->analyse_exp = tick_add(now_ms, 0);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3575 stream_inc_http_err_ctr(s);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3576 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3577 if (sess->fe != s->be)
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3578 HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3579 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3580 HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1);
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]3581 goto done_without_exp;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3582
3583 deny: /* this request was blocked (denied) */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3584
3585 /* Allow cookie logging
3586 */
3587 if (s->be->cookie_name || sess->fe->capture_name)
3588 manage_client_side_cookies(s, req);
3589
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3590 txn->flags |= TX_CLDENY;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3591 txn->status = http_err_codes[deny_status];
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3592 s->logs.tv_request = now;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3593 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3594 stream_inc_http_err_ctr(s);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3595 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3596 if (sess->fe != s->be)
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3597 HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3598 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3599 HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1);
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3600 goto return_prx_cond;
3601
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3602 return_bad_req:
3603 /* We centralize bad requests processing here */
3604 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
3605 /* we detected a parsing error. We want to archive this request
3606 * in the dedicated proxy area for later troubleshooting.
3607 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]3608 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]3609 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]3610
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3611 txn->req.err_state = txn->req.msg_state;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3612 txn->req.msg_state = HTTP_MSG_ERROR;
3613 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3614 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]3615
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3616 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3617 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3618 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreau6e4261e2007-09-18 18:36:05 +0200[diff] [blame]3619
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3620 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3621 if (!(s->flags & SF_ERR_MASK))
3622 s->flags |= SF_ERR_PRXCOND;
3623 if (!(s->flags & SF_FINST_MASK))
3624 s->flags |= SF_FINST_R;
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100[diff] [blame]3625
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3626 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3627 req->analyse_exp = TICK_ETERNITY;
3628 return 0;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3629
3630 return_prx_yield:
3631 channel_dont_connect(req);
3632 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3633}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3634
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3635/* This function performs all the processing enabled for the current request.
3636 * It returns 1 if the processing can continue on next analysers, or zero if it
3637 * needs more data, encounters an error, or wants to immediately abort the
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]3638 * request. It relies on buffers flags, and updates s->req.analysers.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3639 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3640int http_process_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3641{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3642 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3643 struct http_txn *txn = s->txn;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3644 struct http_msg *msg = &txn->req;
Willy Tarreauee335e62015-04-21 18:15:13 +0200[diff] [blame]3645 struct connection *cli_conn = objt_conn(strm_sess(s)->origin);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3646
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]3647 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3648 /* we need more data */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]3649 channel_dont_connect(req);
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3650 return 0;
3651 }
3652
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3653 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]3654 now_ms, __FUNCTION__,
3655 s,
3656 req,
3657 req->rex, req->wex,
3658 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3659 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3660 req->analysers);
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3661
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3662 /*
3663 * Right now, we know that we have processed the entire headers
3664 * and that unwanted requests have been filtered out. We can do
3665 * whatever we want with the remaining request. Also, now we
3666 * may have separate values for ->fe, ->be.
3667 */
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3668
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3669 /*
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3670 * If HTTP PROXY is set we simply get remote server address parsing
3671 * incoming request. Note that this requires that a connection is
3672 * allocated on the server side.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3673 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3674 if ((s->be->options & PR_O_HTTP_PROXY) && !(s->flags & SF_ADDR_SET)) {
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3675 struct connection *conn;
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3676 char *path;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3677
Willy Tarreau9471b8c2013-12-15 13:31:35 +0100[diff] [blame]3678 /* Note that for now we don't reuse existing proxy connections */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]3679 if (unlikely((conn = cs_conn(si_alloc_cs(&s->si[1], NULL))) == NULL)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3680 txn->req.err_state = txn->req.msg_state;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3681 txn->req.msg_state = HTTP_MSG_ERROR;
3682 txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3683 req->analysers &= AN_REQ_FLT_END;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3684 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3685
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3686 if (!(s->flags & SF_ERR_MASK))
3687 s->flags |= SF_ERR_RESOURCE;
3688 if (!(s->flags & SF_FINST_MASK))
3689 s->flags |= SF_FINST_R;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3690
3691 return 0;
3692 }
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3693
3694 path = http_get_path(txn);
3695 url2sa(req->buf->p + msg->sl.rq.u,
3696 path ? path - (req->buf->p + msg->sl.rq.u) : msg->sl.rq.u_l,
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]3697 &conn->addr.to, NULL);
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3698 /* if the path was found, we have to remove everything between
3699 * req->buf->p + msg->sl.rq.u and path (excluded). If it was not
3700 * found, we need to replace from req->buf->p + msg->sl.rq.u for
3701 * u_l characters by a single "/".
3702 */
3703 if (path) {
3704 char *cur_ptr = req->buf->p;
3705 char *cur_end = cur_ptr + txn->req.sl.rq.l;
3706 int delta;
3707
3708 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u, path, NULL, 0);
3709 http_msg_move_end(&txn->req, delta);
3710 cur_end += delta;
3711 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
3712 goto return_bad_req;
3713 }
3714 else {
3715 char *cur_ptr = req->buf->p;
3716 char *cur_end = cur_ptr + txn->req.sl.rq.l;
3717 int delta;
3718
3719 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u,
3720 req->buf->p + msg->sl.rq.u + msg->sl.rq.u_l, "/", 1);
3721 http_msg_move_end(&txn->req, delta);
3722 cur_end += delta;
3723 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
3724 goto return_bad_req;
3725 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3726 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3727
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3728 /*
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]3729 * 7: Now we can work with the cookies.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3730 * Note that doing so might move headers in the request, but
3731 * the fields will stay coherent and the URI will not move.
3732 * This should only be performed in the backend.
3733 */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3734 if (s->be->cookie_name || sess->fe->capture_name)
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3735 manage_client_side_cookies(s, req);
Willy Tarreau7ac51f62007-03-25 16:00:04 +0200[diff] [blame]3736
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3737 /* add unique-id if "header-unique-id" is specified */
3738
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]3739 if (!LIST_ISEMPTY(&sess->fe->format_unique_id) && !s->unique_id) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]3740 if ((s->unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]3741 goto return_bad_req;
3742 s->unique_id[0] = '\0';
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3743 build_logline(s, s->unique_id, UNIQUEID_LEN, &sess->fe->format_unique_id);
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]3744 }
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3745
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3746 if (sess->fe->header_unique_id && s->unique_id) {
3747 chunk_printf(&trash, "%s: %s", sess->fe->header_unique_id, s->unique_id);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3748 if (trash.len < 0)
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3749 goto return_bad_req;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3750 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]3751 goto return_bad_req;
3752 }
3753
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]3754 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3755 * 9: add X-Forwarded-For if either the frontend or the backend
3756 * asks for it.
3757 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3758 if ((sess->fe->options | s->be->options) & PR_O_FWDFOR) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]3759 struct hdr_ctx ctx = { .idx = 0 };
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3760 if (!((sess->fe->options | s->be->options) & PR_O_FF_ALWAYS) &&
3761 http_find_header2(s->be->fwdfor_hdr_len ? s->be->fwdfor_hdr_name : sess->fe->fwdfor_hdr_name,
3762 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]3763 req->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]3764 /* The header is set to be added only if none is present
3765 * and we found it, so don't do anything.
3766 */
3767 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3768 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3769 /* Add an X-Forwarded-For header unless the source IP is
3770 * in the 'except' network range.
3771 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3772 if ((!sess->fe->except_mask.s_addr ||
3773 (((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr.s_addr & sess->fe->except_mask.s_addr)
3774 != sess->fe->except_net.s_addr) &&
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3775 (!s->be->except_mask.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3776 (((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]3777 != s->be->except_net.s_addr)) {
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]3778 int len;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3779 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3780 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr;
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]3781
3782 /* Note: we rely on the backend to get the header name to be used for
3783 * x-forwarded-for, because the header is really meant for the backends.
3784 * However, if the backend did not specify any option, we have to rely
3785 * on the frontend's header name.
3786 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3787 if (s->be->fwdfor_hdr_len) {
3788 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3789 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]3790 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3791 len = sess->fe->fwdfor_hdr_len;
3792 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]3793 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]3794 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]3795
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3796 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]3797 goto return_bad_req;
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]3798 }
3799 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3800 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET6) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3801 /* FIXME: for the sake of completeness, we should also support
3802 * 'except' here, although it is mostly useless in this case.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3803 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3804 int len;
3805 char pn[INET6_ADDRSTRLEN];
3806 inet_ntop(AF_INET6,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3807 (const void *)&((struct sockaddr_in6 *)(&cli_conn->addr.from))->sin6_addr,
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3808 pn, sizeof(pn));
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3809
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3810 /* Note: we rely on the backend to get the header name to be used for
3811 * x-forwarded-for, because the header is really meant for the backends.
3812 * However, if the backend did not specify any option, we have to rely
3813 * on the frontend's header name.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3814 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3815 if (s->be->fwdfor_hdr_len) {
3816 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3817 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3818 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3819 len = sess->fe->fwdfor_hdr_len;
3820 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3821 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]3822 len += snprintf(trash.str + len, trash.size - len, ": %s", pn);
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3823
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3824 if (unlikely(http_header_add_tail2(&txn->req, &txn->hdr_idx, trash.str, len) < 0))
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3825 goto return_bad_req;
3826 }
3827 }
3828
3829 /*
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3830 * 10: add X-Original-To if either the frontend or the backend
3831 * asks for it.
3832 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3833 if ((sess->fe->options | s->be->options) & PR_O_ORGTO) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3834
3835 /* FIXME: don't know if IPv6 can handle that case too. */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3836 if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3837 /* Add an X-Original-To header unless the destination IP is
3838 * in the 'except' network range.
3839 */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3840 conn_get_to_addr(cli_conn);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3841
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3842 if (cli_conn->addr.to.ss_family == AF_INET &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3843 ((!sess->fe->except_mask_to.s_addr ||
3844 (((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr.s_addr & sess->fe->except_mask_to.s_addr)
3845 != sess->fe->except_to.s_addr) &&
Emeric Brun5bd86a82010-10-22 17:23:04 +0200[diff] [blame]3846 (!s->be->except_mask_to.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3847 (((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]3848 != s->be->except_to.s_addr))) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3849 int len;
3850 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3851 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr;
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3852
3853 /* Note: we rely on the backend to get the header name to be used for
3854 * x-original-to, because the header is really meant for the backends.
3855 * However, if the backend did not specify any option, we have to rely
3856 * on the frontend's header name.
3857 */
3858 if (s->be->orgto_hdr_len) {
3859 len = s->be->orgto_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3860 memcpy(trash.str, s->be->orgto_hdr_name, len);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3861 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3862 len = sess->fe->orgto_hdr_len;
3863 memcpy(trash.str, sess->fe->orgto_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]3864 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]3865 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]3866
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3867 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]3868 goto return_bad_req;
3869 }
3870 }
3871 }
3872
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]3873 /* 11: add "Connection: close" or "Connection: keep-alive" if needed and not yet set.
3874 * If an "Upgrade" token is found, the header is left untouched in order not to have
3875 * to deal with some servers bugs : some of them fail an Upgrade if anything but
3876 * "Upgrade" is present in the Connection header.
3877 */
3878 if (!(txn->flags & TX_HDR_CONN_UPG) &&
3879 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3880 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3881 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3882 unsigned int want_flags = 0;
3883
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3884 if (msg->flags & HTTP_MSGF_VER_11) {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]3885 if (((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3886 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3887 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3888 !((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3889 want_flags |= TX_CON_CLO_SET;
3890 } else {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]3891 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3892 ((sess->fe->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL &&
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3893 (s->be->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL)) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3894 ((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3895 want_flags |= TX_CON_KAL_SET;
3896 }
3897
3898 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]3899 http_change_connection_header(txn, msg, want_flags);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3900 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3901
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3902
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3903 /* If we have no server assigned yet and we're balancing on url_param
3904 * with a POST request, we may be interested in checking the body for
3905 * that parameter. This will be done in another analyser.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3906 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3907 if (!(s->flags & (SF_ASSIGNED|SF_DIRECT)) &&
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3908 s->txn->meth == HTTP_METH_POST && s->be->url_param_name != NULL &&
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3909 (msg->flags & (HTTP_MSGF_CNT_LEN|HTTP_MSGF_TE_CHNK))) {
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]3910 channel_dont_connect(req);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3911 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3912 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]3913
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3914 req->analysers &= ~AN_REQ_FLT_XFER_DATA;
3915 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]3916#ifdef TCP_QUICKACK
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3917 /* We expect some data from the client. Unless we know for sure
3918 * we already have a full request, we have to re-enable quick-ack
3919 * in case we previously disabled it, otherwise we might cause
3920 * the client to delay further data.
3921 */
3922 if ((sess->listener->options & LI_O_NOQUICKACK) &&
3923 cli_conn && conn_ctrl_ready(cli_conn) &&
3924 ((msg->flags & HTTP_MSGF_TE_CHNK) ||
3925 (msg->body_len > req->buf->i - txn->req.eoh - 2)))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]3926 setsockopt(cli_conn->handle.fd, IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one));
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]3927#endif
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]3928
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3929 /*************************************************************
3930 * OK, that's finished for the headers. We have done what we *
3931 * could. Let's switch to the DATA state. *
3932 ************************************************************/
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3933 req->analyse_exp = TICK_ETERNITY;
3934 req->analysers &= ~an_bit;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]3935
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3936 s->logs.tv_request = now;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3937 /* OK let's go on with the BODY now */
3938 return 1;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3939
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3940 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]3941 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
Willy Tarreauf073a832009-03-01 23:21:47 +0100[diff] [blame]3942 /* we detected a parsing error. We want to archive this request
3943 * in the dedicated proxy area for later troubleshooting.
3944 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]3945 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]3946 }
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]3947
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3948 txn->req.err_state = txn->req.msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3949 txn->req.msg_state = HTTP_MSG_ERROR;
3950 txn->status = 400;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3951 req->analysers &= AN_REQ_FLT_END;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3952 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]3953
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3954 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3955 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3956 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3957
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3958 if (!(s->flags & SF_ERR_MASK))
3959 s->flags |= SF_ERR_PRXCOND;
3960 if (!(s->flags & SF_FINST_MASK))
3961 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]3962 return 0;
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]3963}
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3964
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3965/* This function is an analyser which processes the HTTP tarpit. It always
3966 * returns zero, at the beginning because it prevents any other processing
3967 * from occurring, and at the end because it terminates the request.
3968 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3969int http_process_tarpit(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3970{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3971 struct http_txn *txn = s->txn;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3972
3973 /* This connection is being tarpitted. The CLIENT side has
3974 * already set the connect expiration date to the right
3975 * timeout. We just have to check that the client is still
3976 * there and that the timeout has not expired.
3977 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]3978 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]3979 if ((req->flags & (CF_SHUTR|CF_READ_ERROR)) == 0 &&
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3980 !tick_is_expired(req->analyse_exp, now_ms))
3981 return 0;
3982
3983 /* We will set the queue timer to the time spent, just for
3984 * logging purposes. We fake a 500 server error, so that the
3985 * attacker will not suspect his connection has been tarpitted.
3986 * It will not cause trouble to the logs because we can exclude
3987 * the tarpitted connections by filtering on the 'PT' status flags.
3988 */
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3989 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
3990
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]3991 if (!(req->flags & CF_READ_ERROR))
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3992 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3993
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3994 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3995 req->analyse_exp = TICK_ETERNITY;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]3996
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3997 if (!(s->flags & SF_ERR_MASK))
3998 s->flags |= SF_ERR_PRXCOND;
3999 if (!(s->flags & SF_FINST_MASK))
4000 s->flags |= SF_FINST_T;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4001 return 0;
4002}
4003
Willy Tarreau5a8f9472014-04-10 11:16:06 +0200[diff] [blame]4004/* This function is an analyser which waits for the HTTP request body. It waits
4005 * for either the buffer to be full, or the full advertised contents to have
4006 * reached the buffer. It must only be called after the standard HTTP request
4007 * processing has occurred, because it expects the request to be parsed and will
4008 * look for the Expect header. It may send a 100-Continue interim response. It
4009 * takes in input any state starting from HTTP_MSG_BODY and leaves with one of
4010 * HTTP_MSG_CHK_SIZE, HTTP_MSG_DATA or HTTP_MSG_TRAILERS. It returns zero if it
4011 * needs to read more data, or 1 once it has completed its analysis.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4012 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4013int http_wait_for_request_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4014{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4015 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4016 struct http_txn *txn = s->txn;
4017 struct http_msg *msg = &s->txn->req;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4018
4019 /* We have to parse the HTTP request body to find any required data.
4020 * "balance url_param check_post" should have been the only way to get
4021 * into this. We were brought here after HTTP header analysis, so all
4022 * related structures are ready.
4023 */
4024
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4025 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE) {
4026 /* This is the first call */
4027 if (msg->msg_state < HTTP_MSG_BODY)
4028 goto missing_data;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4029
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4030 if (msg->msg_state < HTTP_MSG_100_SENT) {
4031 /* If we have HTTP/1.1 and Expect: 100-continue, then we must
4032 * send an HTTP/1.1 100 Continue intermediate response.
4033 */
4034 if (msg->flags & HTTP_MSGF_VER_11) {
4035 struct hdr_ctx ctx;
4036 ctx.idx = 0;
4037 /* Expect is allowed in 1.1, look for it */
4038 if (http_find_header2("Expect", 6, req->buf->p, &txn->hdr_idx, &ctx) &&
4039 unlikely(ctx.vlen == 12 && strncasecmp(ctx.line+ctx.val, "100-continue", 12) == 0)) {
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]4040 co_inject(&s->res, http_100_chunk.str, http_100_chunk.len);
Thierry FOURNIER / OZON.IO43ad11d2016-12-12 15:19:58 +0100[diff] [blame]4041 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4042 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4043 }
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4044 msg->msg_state = HTTP_MSG_100_SENT;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4045 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4046
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]4047 /* we have msg->sov which points to the first byte of message body.
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4048 * req->buf->p still points to the beginning of the message. We
4049 * must save the body in msg->next because it survives buffer
4050 * re-alignments.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4051 */
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]4052 msg->next = msg->sov;
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4053
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4054 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4055 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
4056 else
4057 msg->msg_state = HTTP_MSG_DATA;
4058 }
4059
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4060 if (!(msg->flags & HTTP_MSGF_TE_CHNK)) {
4061 /* We're in content-length mode, we just have to wait for enough data. */
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4062 if (http_body_bytes(msg) < msg->body_len)
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4063 goto missing_data;
4064
4065 /* OK we have everything we need now */
4066 goto http_end;
4067 }
4068
4069 /* OK here we're parsing a chunked-encoded message */
4070
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4071 if (msg->msg_state == HTTP_MSG_CHUNK_SIZE) {
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]4072 /* read the chunk size and assign it to ->chunk_len, then
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4073 * set ->sov and ->next to point to the body and switch to DATA or
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4074 * TRAILERS state.
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4075 */
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]4076 unsigned int chunk;
4077 int ret = h1_parse_chunk_size(req->buf, msg->next, req->buf->i, &chunk);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4078
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4079 if (!ret)
4080 goto missing_data;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4081 else if (ret < 0) {
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]4082 msg->err_pos = req->buf->i + ret;
4083 if (msg->err_pos < 0)
4084 msg->err_pos += req->buf->size;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4085 stream_inc_http_err_ctr(s);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4086 goto return_bad_req;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4087 }
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]4088
4089 msg->chunk_len = chunk;
4090 msg->body_len += chunk;
4091
4092 msg->sol = ret;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]4093 msg->next += ret;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4094 msg->msg_state = msg->chunk_len ? HTTP_MSG_DATA : HTTP_MSG_TRAILERS;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4095 }
4096
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4097 /* Now we're in HTTP_MSG_DATA or HTTP_MSG_TRAILERS state.
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4098 * We have the first data byte is in msg->sov + msg->sol. We're waiting
4099 * for at least a whole chunk or the whole content length bytes after
4100 * msg->sov + msg->sol.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4101 */
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4102 if (msg->msg_state == HTTP_MSG_TRAILERS)
4103 goto http_end;
4104
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4105 if (http_body_bytes(msg) >= msg->body_len) /* we have enough bytes now */
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4106 goto http_end;
4107
4108 missing_data:
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4109 /* we get here if we need to wait for more data. If the buffer is full,
4110 * we have the maximum we can expect.
4111 */
4112 if (buffer_full(req->buf, global.tune.maxrewrite))
4113 goto http_end;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4114
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4115 if ((req->flags & CF_READ_TIMEOUT) || tick_is_expired(req->analyse_exp, now_ms)) {
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4116 txn->status = 408;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4117 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4118
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4119 if (!(s->flags & SF_ERR_MASK))
4120 s->flags |= SF_ERR_CLITO;
4121 if (!(s->flags & SF_FINST_MASK))
4122 s->flags |= SF_FINST_D;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4123 goto return_err_msg;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4124 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4125
4126 /* we get here if we need to wait for more data */
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4127 if (!(req->flags & (CF_SHUTR | CF_READ_ERROR))) {
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4128 /* Not enough data. We'll re-use the http-request
4129 * timeout here. Ideally, we should set the timeout
4130 * relative to the accept() date. We just set the
4131 * request timeout once at the beginning of the
4132 * request.
4133 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4134 channel_dont_connect(req);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4135 if (!tick_isset(req->analyse_exp))
Willy Tarreaucd7afc02009-07-12 10:03:17 +0200[diff] [blame]4136 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4137 return 0;
4138 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4139
4140 http_end:
4141 /* The situation will not evolve, so let's give up on the analysis. */
4142 s->logs.tv_request = now; /* update the request timer to reflect full request */
4143 req->analysers &= ~an_bit;
4144 req->analyse_exp = TICK_ETERNITY;
4145 return 1;
4146
4147 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4148 txn->req.err_state = txn->req.msg_state;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4149 txn->req.msg_state = HTTP_MSG_ERROR;
4150 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4151 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4152
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4153 if (!(s->flags & SF_ERR_MASK))
4154 s->flags |= SF_ERR_PRXCOND;
4155 if (!(s->flags & SF_FINST_MASK))
4156 s->flags |= SF_FINST_R;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4157
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4158 return_err_msg:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4159 req->analysers &= AN_REQ_FLT_END;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4160 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4161 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]4162 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4163 return 0;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4164}
4165
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4166/* send a server's name with an outgoing request over an established connection.
4167 * Note: this function is designed to be called once the request has been scheduled
4168 * for being forwarded. This is the reason why it rewinds the buffer before
4169 * proceeding.
4170 */
Willy Tarreau45c0d982012-03-09 12:11:57 +0100[diff] [blame]4171int 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]4172
4173 struct hdr_ctx ctx;
4174
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4175 char *hdr_name = be->server_id_hdr_name;
4176 int hdr_name_len = be->server_id_hdr_len;
Willy Tarreau394db372012-10-12 22:40:39 +0200[diff] [blame]4177 struct channel *chn = txn->req.chn;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4178 char *hdr_val;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4179 unsigned int old_o, old_i;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4180
William Lallemandd9e90662012-01-30 17:27:17 +0100[diff] [blame]4181 ctx.idx = 0;
4182
Willy Tarreau211cdec2014-04-17 20:18:08 +0200[diff] [blame]4183 old_o = http_hdr_rewind(&txn->req);
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4184 if (old_o) {
4185 /* The request was already skipped, let's restore it */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4186 b_rew(chn->buf, old_o);
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4187 txn->req.next += old_o;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4188 txn->req.sov += old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4189 }
4190
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4191 old_i = chn->buf->i;
4192 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]4193 /* remove any existing values from the header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]4194 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4195 }
4196
4197 /* Add the new header requested with the server value */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4198 hdr_val = trash.str;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4199 memcpy(hdr_val, hdr_name, hdr_name_len);
4200 hdr_val += hdr_name_len;
4201 *hdr_val++ = ':';
4202 *hdr_val++ = ' ';
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4203 hdr_val += strlcpy2(hdr_val, srv_name, trash.str + trash.size - hdr_val);
4204 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]4205
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4206 if (old_o) {
4207 /* If this was a forwarded request, we must readjust the amount of
4208 * data to be forwarded in order to take into account the size
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4209 * variations. Note that the current state is >= HTTP_MSG_BODY,
4210 * so we don't have to adjust ->sol.
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4211 */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4212 old_o += chn->buf->i - old_i;
4213 b_adv(chn->buf, old_o);
4214 txn->req.next -= old_o;
4215 txn->req.sov -= old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4216 }
4217
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4218 return 0;
4219}
4220
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4221/* Terminate current transaction and prepare a new one. This is very tricky
4222 * right now but it works.
4223 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4224void http_end_txn_clean_session(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4225{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4226 int prev_status = s->txn->status;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]4227 struct proxy *fe = strm_fe(s);
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4228 struct proxy *be = s->be;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4229 struct conn_stream *cs;
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4230 struct connection *srv_conn;
4231 struct server *srv;
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4232 unsigned int prev_flags = s->txn->flags;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4233
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4234 /* FIXME: We need a more portable way of releasing a backend's and a
4235 * server's connections. We need a safer way to reinitialize buffer
4236 * flags. We also need a more accurate method for computing per-request
4237 * data.
4238 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4239 /*
4240 * XXX cognet: This is probably wrong, this is killing a whole
4241 * connection, in the new world order, we probably want to just kill
4242 * the stream, this is to be revisited the day we handle multiple
4243 * streams in one server connection.
4244 */
4245 cs = objt_cs(s->si[1].end);
4246 srv_conn = cs_conn(cs);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4247
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4248 /* unless we're doing keep-alive, we want to quickly close the connection
4249 * to the server.
4250 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4251 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4252 !si_conn_ready(&s->si[1])) {
4253 s->si[1].flags |= SI_FL_NOLINGER | SI_FL_NOHALF;
4254 si_shutr(&s->si[1]);
4255 si_shutw(&s->si[1]);
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4256 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4257
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4258 if (s->flags & SF_BE_ASSIGNED) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4259 HA_ATOMIC_SUB(&be->beconn, 1);
Willy Tarreau2d5cd472012-03-01 23:34:37 +0100[diff] [blame]4260 if (unlikely(s->srv_conn))
4261 sess_change_server(s, NULL);
4262 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4263
4264 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4265 stream_process_counters(s);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4266
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4267 if (s->txn->status) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4268 int n;
4269
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4270 n = s->txn->status / 100;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4271 if (n < 1 || n > 5)
4272 n = 0;
4273
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4274 if (fe->mode == PR_MODE_HTTP) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4275 HA_ATOMIC_ADD(&fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4276 }
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4277 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4278 (be->mode == PR_MODE_HTTP)) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4279 HA_ATOMIC_ADD(&be->be_counters.p.http.rsp[n], 1);
4280 HA_ATOMIC_ADD(&be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4281 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4282 }
4283
4284 /* don't count other requests' data */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4285 s->logs.bytes_in -= s->req.buf->i;
4286 s->logs.bytes_out -= s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4287
4288 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4289 if (!LIST_ISEMPTY(&fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4290 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4291 (!(fe->options & PR_O_NULLNOLOG) || s->req.total)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4292 s->do_log(s);
4293 }
4294
Willy Tarreaud713bcc2014-06-25 15:36:04 +0200[diff] [blame]4295 /* stop tracking content-based counters */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4296 stream_stop_content_counters(s);
4297 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +0200[diff] [blame]4298
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4299 s->logs.accept_date = date; /* user-visible date for logging */
4300 s->logs.tv_accept = now; /* corrected date for internal use */
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200[diff] [blame]4301 s->logs.t_handshake = 0; /* There are no handshake in keep alive connection. */
4302 s->logs.t_idle = -1;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4303 tv_zero(&s->logs.tv_request);
4304 s->logs.t_queue = -1;
4305 s->logs.t_connect = -1;
4306 s->logs.t_data = -1;
4307 s->logs.t_close = 0;
4308 s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */
4309 s->logs.srv_queue_size = 0; /* we will get this number soon */
4310
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4311 s->logs.bytes_in = s->req.total = s->req.buf->i;
4312 s->logs.bytes_out = s->res.total = s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4313
4314 if (s->pend_pos)
4315 pendconn_free(s->pend_pos);
4316
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4317 if (objt_server(s->target)) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4318 if (s->flags & SF_CURR_SESS) {
4319 s->flags &= ~SF_CURR_SESS;
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4320 HA_ATOMIC_SUB(&objt_server(s->target)->cur_sess, 1);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4321 }
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4322 if (may_dequeue_tasks(objt_server(s->target), be))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4323 process_srv_queue(objt_server(s->target));
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4324 }
4325
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4326 s->target = NULL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4327
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4328 /* only release our endpoint if we don't intend to reuse the
4329 * connection.
4330 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4331 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4332 !si_conn_ready(&s->si[1])) {
4333 si_release_endpoint(&s->si[1]);
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4334 srv_conn = NULL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4335 }
4336
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4337 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
4338 s->si[1].err_type = SI_ET_NONE;
4339 s->si[1].conn_retries = 0; /* used for logging too */
4340 s->si[1].exp = TICK_ETERNITY;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4341 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]4342 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]4343 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]4344 s->flags &= ~(SF_DIRECT|SF_ASSIGNED|SF_ADDR_SET|SF_BE_ASSIGNED|SF_FORCE_PRST|SF_IGNORE_PRST);
4345 s->flags &= ~(SF_CURR_SESS|SF_REDIRECTABLE|SF_SRV_REUSED);
4346 s->flags &= ~(SF_ERR_MASK|SF_FINST_MASK|SF_REDISP);
Willy Tarreau543db622012-11-15 16:41:22 +0100[diff] [blame]4347
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4348 s->txn->meth = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4349 http_reset_txn(s);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4350 s->txn->flags |= TX_NOT_FIRST | TX_WAIT_NEXT_RQ;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4351
4352 if (prev_status == 401 || prev_status == 407) {
4353 /* In HTTP keep-alive mode, if we receive a 401, we still have
4354 * a chance of being able to send the visitor again to the same
4355 * server over the same connection. This is required by some
4356 * broken protocols such as NTLM, and anyway whenever there is
4357 * an opportunity for sending the challenge to the proper place,
4358 * it's better to do it (at least it helps with debugging).
4359 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4360 s->txn->flags |= TX_PREFER_LAST;
Willy Tarreaubd99d582015-09-02 10:40:43 +0200[diff] [blame]4361 if (srv_conn)
4362 srv_conn->flags |= CO_FL_PRIVATE;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4363 }
4364
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4365 /* Never ever allow to reuse a connection from a non-reuse backend */
4366 if (srv_conn && (be->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
4367 srv_conn->flags |= CO_FL_PRIVATE;
4368
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4369 if (fe->options2 & PR_O2_INDEPSTR)
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4370 s->si[1].flags |= SI_FL_INDEP_STR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4371
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4372 if (fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4373 s->req.flags |= CF_NEVER_WAIT;
4374 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200[diff] [blame]4375 }
4376
Willy Tarreau714ea782015-11-25 20:11:11 +0100[diff] [blame]4377 /* we're removing the analysers, we MUST re-enable events detection.
4378 * We don't enable close on the response channel since it's either
4379 * already closed, or in keep-alive with an idle connection handler.
4380 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4381 channel_auto_read(&s->req);
4382 channel_auto_close(&s->req);
4383 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4384
Willy Tarreau1c59bd52015-11-02 20:20:11 +0100[diff] [blame]4385 /* we're in keep-alive with an idle connection, monitor it if not already done */
4386 if (srv_conn && LIST_ISEMPTY(&srv_conn->list)) {
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4387 srv = objt_server(srv_conn->target);
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4388 if (!srv)
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4389 si_idle_cs(&s->si[1], NULL);
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4390 else if (srv_conn->flags & CO_FL_PRIVATE)
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4391 si_idle_cs(&s->si[1], (srv->priv_conns ? &srv->priv_conns[tid] : NULL));
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4392 else if (prev_flags & TX_NOT_FIRST)
4393 /* note: we check the request, not the connection, but
4394 * this is valid for strategies SAFE and AGGR, and in
4395 * case of ALWS, we don't care anyway.
4396 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4397 si_idle_cs(&s->si[1], (srv->safe_conns ? &srv->safe_conns[tid] : NULL));
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4398 else
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4399 si_idle_cs(&s->si[1], (srv->idle_conns ? &srv->idle_conns[tid] : NULL));
Willy Tarreau4320eaa2015-08-05 11:08:30 +0200[diff] [blame]4400 }
Christopher Faulete6006242017-03-10 11:52:44 +0100[diff] [blame]4401 s->req.analysers = strm_li(s) ? strm_li(s)->analysers : 0;
4402 s->res.analysers = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4403}
4404
4405
4406/* This function updates the request state machine according to the response
4407 * state machine and buffer flags. It returns 1 if it changes anything (flag
4408 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4409 * it is only used to find when a request/response couple is complete. Both
4410 * this function and its equivalent should loop until both return zero. It
4411 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4412 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4413int http_sync_req_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4414{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4415 struct channel *chn = &s->req;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4416 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4417 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4418 unsigned int old_state = txn->req.msg_state;
4419
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4420 if (unlikely(txn->req.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4421 return 0;
4422
4423 if (txn->req.msg_state == HTTP_MSG_DONE) {
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4424 /* No need to read anymore, the request was completely parsed.
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4425 * We can shut the read side unless we want to abort_on_close,
4426 * or we have a POST request. The issue with POST requests is
4427 * that some browsers still send a CRLF after the request, and
4428 * this CRLF must be read so that it does not remain in the kernel
4429 * buffers, otherwise a close could cause an RST on some systems
4430 * (eg: Linux).
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4431 * Note that if we're using keep-alive on the client side, we'd
4432 * rather poll now and keep the polling enabled for the whole
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4433 * stream's life than enabling/disabling it between each
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4434 * response and next request.
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4435 */
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4436 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4437 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
4438 !(s->be->options & PR_O_ABRT_CLOSE) &&
4439 txn->meth != HTTP_METH_POST)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4440 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4441
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4442 /* if the server closes the connection, we want to immediately react
4443 * and close the socket to save packets and syscalls.
4444 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4445 s->si[1].flags |= SI_FL_NOHALF;
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4446
Willy Tarreau7f876a12015-11-18 11:59:55 +0100[diff] [blame]4447 /* In any case we've finished parsing the request so we must
4448 * disable Nagle when sending data because 1) we're not going
4449 * to shut this side, and 2) the server is waiting for us to
4450 * send pending data.
4451 */
4452 chn->flags |= CF_NEVER_WAIT;
4453
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4454 if (txn->rsp.msg_state == HTTP_MSG_ERROR)
4455 goto wait_other_side;
4456
4457 if (txn->rsp.msg_state < HTTP_MSG_DONE) {
4458 /* The server has not finished to respond, so we
4459 * don't want to move in order not to upset it.
4460 */
4461 goto wait_other_side;
4462 }
4463
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4464 /* When we get here, it means that both the request and the
4465 * response have finished receiving. Depending on the connection
4466 * mode, we'll have to wait for the last bytes to leave in either
4467 * direction, and sometimes for a close to be effective.
4468 */
4469
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4470 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4471 /* Server-close mode : queue a connection close to the server */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4472 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW)))
4473 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4474 }
4475 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4476 /* Option forceclose is set, or either side wants to close,
4477 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4478 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4479 * once both states are CLOSED.
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4480 *
4481 * However, there is an exception if the response
4482 * length is undefined. In this case, we need to wait
4483 * the close from the server. The response will be
4484 * switched in TUNNEL mode until the end.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4485 */
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4486 if (!(txn->rsp.flags & HTTP_MSGF_XFER_LEN) &&
4487 txn->rsp.msg_state != HTTP_MSG_CLOSED)
4488 goto check_channel_flags;
4489
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4490 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
4491 channel_shutr_now(chn);
4492 channel_shutw_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4493 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4494 }
4495 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4496 /* The last possible modes are keep-alive and tunnel. Tunnel mode
4497 * will not have any analyser so it needs to poll for reads.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4498 */
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4499 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN) {
4500 channel_auto_read(chn);
4501 txn->req.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4502 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4503 }
4504
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4505 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4506 }
4507
4508 if (txn->req.msg_state == HTTP_MSG_CLOSING) {
4509 http_msg_closing:
4510 /* nothing else to forward, just waiting for the output buffer
4511 * to be empty and for the shutw_now to take effect.
4512 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4513 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4514 txn->req.msg_state = HTTP_MSG_CLOSED;
4515 goto http_msg_closed;
4516 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4517 else if (chn->flags & CF_SHUTW) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4518 txn->req.err_state = txn->req.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4519 txn->req.msg_state = HTTP_MSG_ERROR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4520 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4521 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4522 }
4523
4524 if (txn->req.msg_state == HTTP_MSG_CLOSED) {
4525 http_msg_closed:
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4526 /* see above in MSG_DONE why we only do this in these states */
4527 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4528 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
4529 !(s->be->options & PR_O_ABRT_CLOSE))
Willy Tarreau2e7a1652013-12-15 15:32:10 +0100[diff] [blame]4530 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4531 goto wait_other_side;
4532 }
4533
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4534 check_channel_flags:
4535 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4536 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4537 /* if we've just closed an output, let's switch */
4538 s->si[1].flags |= SI_FL_NOLINGER; /* we want to close ASAP */
4539 txn->req.msg_state = HTTP_MSG_CLOSING;
4540 goto http_msg_closing;
4541 }
4542
4543
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4544 wait_other_side:
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4545 return txn->req.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4546}
4547
4548
4549/* This function updates the response state machine according to the request
4550 * state machine and buffer flags. It returns 1 if it changes anything (flag
4551 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4552 * it is only used to find when a request/response couple is complete. Both
4553 * this function and its equivalent should loop until both return zero. It
4554 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4555 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4556int http_sync_res_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4557{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4558 struct channel *chn = &s->res;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4559 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4560 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4561 unsigned int old_state = txn->rsp.msg_state;
4562
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4563 if (unlikely(txn->rsp.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4564 return 0;
4565
4566 if (txn->rsp.msg_state == HTTP_MSG_DONE) {
4567 /* In theory, we don't need to read anymore, but we must
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4568 * still monitor the server connection for a possible close
4569 * while the request is being uploaded, so we don't disable
4570 * reading.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4571 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4572 /* channel_dont_read(chn); */
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4573
4574 if (txn->req.msg_state == HTTP_MSG_ERROR)
4575 goto wait_other_side;
4576
4577 if (txn->req.msg_state < HTTP_MSG_DONE) {
4578 /* The client seems to still be sending data, probably
4579 * because we got an error response during an upload.
4580 * We have the choice of either breaking the connection
4581 * or letting it pass through. Let's do the later.
4582 */
4583 goto wait_other_side;
4584 }
4585
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4586 /* When we get here, it means that both the request and the
4587 * response have finished receiving. Depending on the connection
4588 * mode, we'll have to wait for the last bytes to leave in either
4589 * direction, and sometimes for a close to be effective.
4590 */
4591
4592 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4593 /* Server-close mode : shut read and wait for the request
4594 * side to close its output buffer. The caller will detect
4595 * when we're in DONE and the other is in CLOSED and will
4596 * catch that for the final cleanup.
4597 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4598 if (!(chn->flags & (CF_SHUTR|CF_SHUTR_NOW)))
4599 channel_shutr_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4600 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4601 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4602 /* Option forceclose is set, or either side wants to close,
4603 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4604 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4605 * once both states are CLOSED.
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4606 *
4607 * However, there is an exception if the response length
4608 * is undefined. In this case, we switch in TUNNEL mode.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4609 */
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4610 if (!(txn->rsp.flags & HTTP_MSGF_XFER_LEN)) {
4611 channel_auto_read(chn);
4612 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
4613 chn->flags |= CF_NEVER_WAIT;
4614 }
4615 else if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4616 channel_shutr_now(chn);
4617 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4618 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4619 }
4620 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4621 /* The last possible modes are keep-alive and tunnel. Tunnel will
4622 * need to forward remaining data. Keep-alive will need to monitor
4623 * for connection closing.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4624 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4625 channel_auto_read(chn);
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4626 chn->flags |= CF_NEVER_WAIT;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4627 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN)
4628 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4629 }
4630
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4631 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4632 }
4633
4634 if (txn->rsp.msg_state == HTTP_MSG_CLOSING) {
4635 http_msg_closing:
4636 /* nothing else to forward, just waiting for the output buffer
4637 * to be empty and for the shutw_now to take effect.
4638 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4639 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4640 txn->rsp.msg_state = HTTP_MSG_CLOSED;
4641 goto http_msg_closed;
4642 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4643 else if (chn->flags & CF_SHUTW) {
Christopher Fauleta3992e02017-07-18 10:35:55 +0200[diff] [blame]4644 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4645 txn->rsp.msg_state = HTTP_MSG_ERROR;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4646 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4647 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4648 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4649 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4650 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4651 }
4652
4653 if (txn->rsp.msg_state == HTTP_MSG_CLOSED) {
4654 http_msg_closed:
4655 /* drop any pending data */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]4656 channel_truncate(chn);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4657 channel_auto_close(chn);
4658 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4659 goto wait_other_side;
4660 }
4661
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4662 check_channel_flags:
4663 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4664 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4665 /* if we've just closed an output, let's switch */
4666 txn->rsp.msg_state = HTTP_MSG_CLOSING;
4667 goto http_msg_closing;
4668 }
4669
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4670 wait_other_side:
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4671 /* We force the response to leave immediately if we're waiting for the
4672 * other side, since there is no pending shutdown to push it out.
4673 */
4674 if (!channel_is_empty(chn))
4675 chn->flags |= CF_SEND_DONTWAIT;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4676 return txn->rsp.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4677}
4678
4679
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4680/* Resync the request and response state machines. */
4681void http_resync_states(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4682{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4683 struct http_txn *txn = s->txn;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4684#ifdef DEBUG_FULL
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4685 int old_req_state = txn->req.msg_state;
4686 int old_res_state = txn->rsp.msg_state;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4687#endif
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4688
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4689 http_sync_req_state(s);
4690 while (1) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4691 if (!http_sync_res_state(s))
4692 break;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4693 if (!http_sync_req_state(s))
4694 break;
4695 }
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]4696
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4697 DPRINTF(stderr,"[%u] %s: stream=%p old=%s,%s cur=%s,%s "
4698 "req->analysers=0x%08x res->analysers=0x%08x\n",
4699 now_ms, __FUNCTION__, s,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]4700 h1_msg_state_str(old_req_state), h1_msg_state_str(old_res_state),
4701 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]4702 s->req.analysers, s->res.analysers);
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4703
4704
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4705 /* OK, both state machines agree on a compatible state.
4706 * There are a few cases we're interested in :
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4707 * - HTTP_MSG_CLOSED on both sides means we've reached the end in both
4708 * directions, so let's simply disable both analysers.
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4709 * - HTTP_MSG_CLOSED on the response only or HTTP_MSG_ERROR on either
4710 * means we must abort the request.
4711 * - HTTP_MSG_TUNNEL on either means we have to disable analyser on
4712 * corresponding channel.
4713 * - HTTP_MSG_DONE or HTTP_MSG_CLOSED on the request and HTTP_MSG_DONE
4714 * on the response with server-close mode means we've completed one
4715 * request and we must re-initialize the server connection.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4716 */
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4717 if (txn->req.msg_state == HTTP_MSG_CLOSED &&
4718 txn->rsp.msg_state == HTTP_MSG_CLOSED) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4719 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4720 channel_auto_close(&s->req);
4721 channel_auto_read(&s->req);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4722 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4723 channel_auto_close(&s->res);
4724 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4725 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4726 else if (txn->rsp.msg_state == HTTP_MSG_CLOSED ||
4727 txn->rsp.msg_state == HTTP_MSG_ERROR ||
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4728 txn->req.msg_state == HTTP_MSG_ERROR) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4729 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4730 channel_auto_close(&s->res);
4731 channel_auto_read(&s->res);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4732 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4733 channel_abort(&s->req);
4734 channel_auto_close(&s->req);
4735 channel_auto_read(&s->req);
4736 channel_truncate(&s->req);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4737 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4738 else if (txn->req.msg_state == HTTP_MSG_TUNNEL ||
4739 txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4740 if (txn->req.msg_state == HTTP_MSG_TUNNEL) {
4741 s->req.analysers &= AN_REQ_FLT_END;
4742 if (HAS_REQ_DATA_FILTERS(s))
4743 s->req.analysers |= AN_REQ_FLT_XFER_DATA;
4744 }
4745 if (txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4746 s->res.analysers &= AN_RES_FLT_END;
4747 if (HAS_RSP_DATA_FILTERS(s))
4748 s->res.analysers |= AN_RES_FLT_XFER_DATA;
4749 }
4750 channel_auto_close(&s->req);
4751 channel_auto_read(&s->req);
4752 channel_auto_close(&s->res);
4753 channel_auto_read(&s->res);
4754 }
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4755 else if ((txn->req.msg_state == HTTP_MSG_DONE ||
4756 txn->req.msg_state == HTTP_MSG_CLOSED) &&
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4757 txn->rsp.msg_state == HTTP_MSG_DONE &&
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4758 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
4759 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
4760 /* server-close/keep-alive: terminate this transaction,
4761 * possibly killing the server connection and reinitialize
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4762 * a fresh-new transaction, but only once we're sure there's
4763 * enough room in the request and response buffer to process
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]4764 * another request. They must not hold any pending output data
4765 * and the response buffer must realigned
4766 * (realign is done is http_end_txn_clean_session).
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4767 */
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4768 if (s->req.buf->o)
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4769 s->req.flags |= CF_WAKE_WRITE;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4770 else if (s->res.buf->o)
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4771 s->res.flags |= CF_WAKE_WRITE;
Christopher Fauleta81ff602017-07-18 22:01:05 +0200[diff] [blame]4772 else {
4773 s->req.analysers = AN_REQ_FLT_END;
4774 s->res.analysers = AN_RES_FLT_END;
4775 txn->flags |= TX_WAIT_CLEANUP;
4776 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4777 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4778}
4779
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4780/* This function is an analyser which forwards request body (including chunk
4781 * sizes if any). It is called as soon as we must forward, even if we forward
4782 * zero byte. The only situation where it must not be called is when we're in
4783 * tunnel mode and we want to forward till the close. It's used both to forward
4784 * remaining data and to resync after end of body. It expects the msg_state to
4785 * 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]4786 * 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]4787 * When in MSG_DATA or MSG_TRAILERS, it will automatically forward chunk_len
Willy Tarreauc24715e2014-04-17 15:21:20 +0200[diff] [blame]4788 * bytes of pending data + the headers if not already done.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4789 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4790int http_request_forward_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4791{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4792 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4793 struct http_txn *txn = s->txn;
4794 struct http_msg *msg = &s->txn->req;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]4795 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4796
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4797 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
4798 now_ms, __FUNCTION__,
4799 s,
4800 req,
4801 req->rex, req->wex,
4802 req->flags,
4803 req->buf->i,
4804 req->analysers);
4805
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4806 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
4807 return 0;
4808
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4809 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]4810 ((req->flags & CF_SHUTW) && (req->to_forward || req->buf->o))) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4811 /* Output closed while we were sending data. We must abort and
4812 * wake the other side up.
4813 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4814 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4815 msg->msg_state = HTTP_MSG_ERROR;
4816 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]4817 return 1;
4818 }
4819
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4820 /* Note that we don't have to send 100-continue back because we don't
4821 * need the data to complete our job, and it's up to the server to
4822 * decide whether to return 100, 417 or anything else in return of
4823 * an "Expect: 100-continue" header.
4824 */
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4825 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4826 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
4827 ? HTTP_MSG_CHUNK_SIZE
4828 : HTTP_MSG_DATA);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4829
4830 /* TODO/filters: when http-buffer-request option is set or if a
4831 * rule on url_param exists, the first chunk size could be
4832 * already parsed. In that case, msg->next is after the chunk
4833 * size (including the CRLF after the size). So this case should
4834 * be handled to */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4835 }
4836
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4837 /* Some post-connect processing might want us to refrain from starting to
4838 * forward data. Currently, the only reason for this is "balance url_param"
4839 * whichs need to parse/process the request after we've enabled forwarding.
4840 */
4841 if (unlikely(msg->flags & HTTP_MSGF_WAIT_CONN)) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4842 if (!(s->res.flags & CF_READ_ATTACHED)) {
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4843 channel_auto_connect(req);
Willy Tarreau644c1012014-04-30 18:11:11 +0200[diff] [blame]4844 req->flags |= CF_WAKE_CONNECT;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4845 goto missing_data_or_waiting;
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4846 }
4847 msg->flags &= ~HTTP_MSGF_WAIT_CONN;
4848 }
4849
Willy Tarreau80a92c02014-03-12 10:41:13 +0100[diff] [blame]4850 /* in most states, we should abort in case of early close */
4851 channel_auto_close(req);
4852
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4853 if (req->to_forward) {
4854 /* We can't process the buffer's contents yet */
4855 req->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4856 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4857 }
4858
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4859 if (msg->msg_state < HTTP_MSG_DONE) {
4860 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
4861 ? http_msg_forward_chunked_body(s, msg)
4862 : http_msg_forward_body(s, msg));
4863 if (!ret)
4864 goto missing_data_or_waiting;
4865 if (ret < 0)
4866 goto return_bad_req;
4867 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4868
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4869 /* other states, DONE...TUNNEL */
4870 /* we don't want to forward closes on DONE except in tunnel mode. */
4871 if ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
4872 channel_dont_close(req);
Willy Tarreau5c54c712010-07-17 08:02:58 +0200[diff] [blame]4873
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4874 http_resync_states(s);
4875 if (!(req->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4876 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
4877 if (req->flags & CF_SHUTW) {
4878 /* request errors are most likely due to the
4879 * server aborting the transfer. */
4880 goto aborted_xfer;
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4881 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4882 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]4883 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]4884 goto return_bad_req;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4885 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4886 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4887 }
4888
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4889 /* If "option abortonclose" is set on the backend, we want to monitor
4890 * the client's connection and forward any shutdown notification to the
4891 * server, which will decide whether to close or to go on processing the
4892 * request. We only do that in tunnel mode, and not in other modes since
4893 * it can be abused to exhaust source ports. */
4894 if (s->be->options & PR_O_ABRT_CLOSE) {
4895 channel_auto_read(req);
4896 if ((req->flags & (CF_SHUTR|CF_READ_NULL)) &&
4897 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN))
4898 s->si[1].flags |= SI_FL_NOLINGER;
4899 channel_auto_close(req);
4900 }
4901 else if (s->txn->meth == HTTP_METH_POST) {
4902 /* POST requests may require to read extra CRLF sent by broken
4903 * browsers and which could cause an RST to be sent upon close
4904 * on some systems (eg: Linux). */
4905 channel_auto_read(req);
4906 }
4907 return 0;
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]4908
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4909 missing_data_or_waiting:
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4910 /* stop waiting for data if the input is closed before the end */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]4911 if (msg->msg_state < HTTP_MSG_ENDING && req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4912 if (!(s->flags & SF_ERR_MASK))
4913 s->flags |= SF_ERR_CLICL;
4914 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4915 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4916 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4917 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4918 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4919 }
4920
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4921 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
4922 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4923 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4924 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4925
4926 goto return_bad_req_stats_ok;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4927 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4928
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4929 /* waiting for the last bits to leave the buffer */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4930 if (req->flags & CF_SHUTW)
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4931 goto aborted_xfer;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4932
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]4933 /* When TE: chunked is used, we need to get there again to parse remaining
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4934 * chunks even if the client has closed, so we don't want to set CF_DONTCLOSE.
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]4935 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4936 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4937 channel_dont_close(req);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]4938
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4939 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4940 * 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]4941 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]4942 * modes are already handled by the stream sock layer. We must not do
4943 * this in content-length mode because it could present the MSG_MORE
4944 * flag with the last block of forwarded data, which would cause an
4945 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4946 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4947 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4948 req->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4949
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4950 return 0;
4951
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4952 return_bad_req: /* let's centralize all bad requests */
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4953 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4954 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]4955 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]4956
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4957 return_bad_req_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4958 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4959 txn->req.msg_state = HTTP_MSG_ERROR;
4960 if (txn->status) {
4961 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4962 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4963 } else {
4964 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4965 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4966 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4967 req->analysers &= AN_REQ_FLT_END;
4968 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]4969
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4970 if (!(s->flags & SF_ERR_MASK))
4971 s->flags |= SF_ERR_PRXCOND;
4972 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4973 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4974 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4975 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4976 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4977 }
4978 return 0;
4979
4980 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4981 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4982 txn->req.msg_state = HTTP_MSG_ERROR;
4983 if (txn->status) {
4984 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4985 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4986 } else {
4987 txn->status = 502;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4988 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4989 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4990 req->analysers &= AN_REQ_FLT_END;
4991 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]4992
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4993 HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
4994 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4995 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4996 HA_ATOMIC_ADD(&objt_server(s->target)->counters.srv_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4997
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4998 if (!(s->flags & SF_ERR_MASK))
4999 s->flags |= SF_ERR_SRVCL;
5000 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5001 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5002 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5003 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5004 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5005 }
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5006 return 0;
5007}
5008
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5009/* This stream analyser waits for a complete HTTP response. It returns 1 if the
5010 * processing can continue on next analysers, or zero if it either needs more
5011 * data or wants to immediately abort the response (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5012 * 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]5013 * when it has nothing left to do, and may remove any analyser when it wants to
5014 * abort.
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5015 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5016int http_wait_for_response(struct stream *s, struct channel *rep, int an_bit)
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5017{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5018 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5019 struct http_txn *txn = s->txn;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5020 struct http_msg *msg = &txn->rsp;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5021 struct hdr_ctx ctx;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5022 int use_close_only;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5023 int cur_idx;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5024 int n;
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]5025
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5026 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]5027 now_ms, __FUNCTION__,
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5028 s,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5029 rep,
5030 rep->rex, rep->wex,
5031 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5032 rep->buf->i,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5033 rep->analysers);
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200[diff] [blame]5034
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5035 /*
5036 * Now parse the partial (or complete) lines.
5037 * We will check the response syntax, and also join multi-line
5038 * headers. An index of all the lines will be elaborated while
5039 * parsing.
5040 *
5041 * For the parsing, we use a 28 states FSM.
5042 *
5043 * Here is the information we currently have :
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5044 * rep->buf->p = beginning of response
5045 * rep->buf->p + msg->eoh = end of processed headers / start of current one
5046 * rep->buf->p + rep->buf->i = end of input data
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]5047 * msg->eol = end of current header or line (LF or CRLF)
5048 * msg->next = first non-visited byte
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5049 */
5050
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5051 next_one:
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5052 /* There's a protected area at the end of the buffer for rewriting
5053 * purposes. We don't want to start to parse the request if the
5054 * protected area is affected, because we may have to move processed
5055 * data later, which is much more complicated.
5056 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5057 if (buffer_not_empty(rep->buf) && msg->msg_state < HTTP_MSG_ERROR) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]5058 if (unlikely(!channel_is_rewritable(rep))) {
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5059 /* some data has still not left the buffer, wake us once that's done */
5060 if (rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
5061 goto abort_response;
5062 channel_dont_close(rep);
5063 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]5064 rep->flags |= CF_WAKE_WRITE;
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5065 return 0;
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5066 }
5067
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5068 if (unlikely(bi_end(rep->buf) < b_ptr(rep->buf, msg->next) ||
5069 bi_end(rep->buf) > rep->buf->data + rep->buf->size - global.tune.maxrewrite))
5070 buffer_slow_realign(rep->buf);
5071
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5072 if (likely(msg->next < rep->buf->i))
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]5073 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5074 }
5075
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5076 /* 1: we might have to print this header in debug mode */
5077 if (unlikely((global.mode & MODE_DEBUG) &&
5078 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]5079 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5080 char *eol, *sol;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5081
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5082 sol = rep->buf->p;
5083 eol = sol + (msg->sl.st.l ? msg->sl.st.l : rep->buf->i);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5084 debug_hdr("srvrep", s, sol, eol);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5085
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5086 sol += hdr_idx_first_pos(&txn->hdr_idx);
5087 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5088
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5089 while (cur_idx) {
5090 eol = sol + txn->hdr_idx.v[cur_idx].len;
5091 debug_hdr("srvhdr", s, sol, eol);
5092 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
5093 cur_idx = txn->hdr_idx.v[cur_idx].next;
5094 }
5095 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5096
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5097 /*
5098 * Now we quickly check if we have found a full valid response.
5099 * If not so, we check the FD and buffer states before leaving.
5100 * A full response is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5101 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5102 * responses are checked first.
5103 *
5104 * Depending on whether the client is still there or not, we
5105 * may send an error response back or not. Note that normally
5106 * we should only check for HTTP status there, and check I/O
5107 * errors somewhere else.
5108 */
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5109
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5110 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5111 /* Invalid response */
5112 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
5113 /* we detected a parsing error. We want to archive this response
5114 * in the dedicated proxy area for later troubleshooting.
5115 */
5116 hdr_response_bad:
5117 if (msg->msg_state == HTTP_MSG_ERROR || msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5118 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]5119
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5120 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5121 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5122 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5123 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5124 }
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]5125 abort_response:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5126 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5127 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5128 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5129 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5130 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5131 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5132
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5133 if (!(s->flags & SF_ERR_MASK))
5134 s->flags |= SF_ERR_PRXCOND;
5135 if (!(s->flags & SF_FINST_MASK))
5136 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5137
5138 return 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5139 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5140
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5141 /* too large response does not fit in buffer. */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5142 else if (buffer_full(rep->buf, global.tune.maxrewrite)) {
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]5143 if (msg->err_pos < 0)
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5144 msg->err_pos = rep->buf->i;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5145 goto hdr_response_bad;
5146 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5147
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5148 /* read error */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5149 else if (rep->flags & CF_READ_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5150 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5151 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]5152 else if (txn->flags & TX_NOT_FIRST)
5153 goto abort_keep_alive;
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5154
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5155 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5156 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5157 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5158 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_ERROR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5159 }
Willy Tarreau461f6622008-08-15 23:43:19 +0200[diff] [blame]5160
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5161 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5162 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5163 txn->status = 502;
Olivier Houchard522eea72017-11-03 16:27:47 +0100[diff] [blame]5164
5165 /* Check to see if the server refused the early data.
5166 * If so, just send a 425
5167 */
5168 if (objt_cs(s->si[1].end)) {
5169 struct connection *conn = objt_cs(s->si[1].end)->conn;
5170
5171 if (conn->err_code == CO_ER_SSL_EARLY_FAILED)
5172 txn->status = 425;
5173 }
5174
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5175 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5176 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5177 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau816b9792009-09-15 21:25:21 +0200[diff] [blame]5178
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5179 if (!(s->flags & SF_ERR_MASK))
5180 s->flags |= SF_ERR_SRVCL;
5181 if (!(s->flags & SF_FINST_MASK))
5182 s->flags |= SF_FINST_H;
Willy Tarreaucebf57e2008-08-15 18:16:37 +0200[diff] [blame]5183 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5184 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5185
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +0200[diff] [blame]5186 /* read timeout : return a 504 to the client. */
5187 else if (rep->flags & CF_READ_TIMEOUT) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5188 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5189 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[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_TIMEOUT);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5195 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[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 = 504;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5200 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5201 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5202 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5203
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5204 if (!(s->flags & SF_ERR_MASK))
5205 s->flags |= SF_ERR_SRVTO;
5206 if (!(s->flags & SF_FINST_MASK))
5207 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5208 return 0;
5209 }
Willy Tarreaua7c52762008-08-16 18:40:18 +0200[diff] [blame]5210
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5211 /* client abort with an abortonclose */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5212 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]5213 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
5214 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5215 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5216 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5217
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5218 rep->analysers &= AN_RES_FLT_END;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5219 channel_auto_close(rep);
5220
5221 txn->status = 400;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5222 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5223 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5224
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5225 if (!(s->flags & SF_ERR_MASK))
5226 s->flags |= SF_ERR_CLICL;
5227 if (!(s->flags & SF_FINST_MASK))
5228 s->flags |= SF_FINST_H;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5229
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5230 /* process_stream() will take care of the error */
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5231 return 0;
5232 }
5233
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5234 /* close from server, capture the response if the server has started to respond */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5235 else if (rep->flags & CF_SHUTR) {
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5236 if (msg->msg_state >= HTTP_MSG_RPVER || msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5237 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]5238 else if (txn->flags & TX_NOT_FIRST)
5239 goto abort_keep_alive;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5240
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5241 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5242 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5243 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5244 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_BROKEN_PIPE);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5245 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5246
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5247 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5248 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5249 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5250 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5251 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5252 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5253
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5254 if (!(s->flags & SF_ERR_MASK))
5255 s->flags |= SF_ERR_SRVCL;
5256 if (!(s->flags & SF_FINST_MASK))
5257 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5258 return 0;
5259 }
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5260
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5261 /* write error to client (we don't send any message then) */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5262 else if (rep->flags & CF_WRITE_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5263 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5264 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]5265 else if (txn->flags & TX_NOT_FIRST)
5266 goto abort_keep_alive;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5267
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5268 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5269 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5270 channel_auto_close(rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5271
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5272 if (!(s->flags & SF_ERR_MASK))
5273 s->flags |= SF_ERR_CLICL;
5274 if (!(s->flags & SF_FINST_MASK))
5275 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5276
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5277 /* process_stream() will take care of the error */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5278 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5279 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5280
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5281 channel_dont_close(rep);
Willy Tarreau3f3997e2013-12-15 15:21:32 +0100[diff] [blame]5282 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5283 return 0;
5284 }
5285
5286 /* More interesting part now : we know that we have a complete
5287 * response which at least looks like HTTP. We have an indicator
5288 * of each header's length, so we can parse them quickly.
5289 */
5290
5291 if (unlikely(msg->err_pos >= 0))
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5292 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]5293
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5294 /*
5295 * 1: get the status code
5296 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5297 n = rep->buf->p[msg->sl.st.c] - '0';
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5298 if (n < 1 || n > 5)
5299 n = 0;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5300 /* when the client triggers a 4xx from the server, it's most often due
5301 * to a missing object or permission. These events should be tracked
5302 * because if they happen often, it may indicate a brute force or a
5303 * vulnerability scan.
5304 */
5305 if (n == 4)
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5306 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5307
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5308 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5309 HA_ATOMIC_ADD(&objt_server(s->target)->counters.p.http.rsp[n], 1);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5310
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]5311 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
5312 * exactly one digit "." one digit. This check may be disabled using
5313 * option accept-invalid-http-response.
5314 */
5315 if (!(s->be->options2 & PR_O2_RSPBUG_OK)) {
5316 if (msg->sl.st.v_l != 8) {
5317 msg->err_pos = 0;
5318 goto hdr_response_bad;
5319 }
5320
5321 if (rep->buf->p[4] != '/' ||
5322 !isdigit((unsigned char)rep->buf->p[5]) ||
5323 rep->buf->p[6] != '.' ||
5324 !isdigit((unsigned char)rep->buf->p[7])) {
5325 msg->err_pos = 4;
5326 goto hdr_response_bad;
5327 }
5328 }
5329
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5330 /* check if the response is HTTP/1.1 or above */
5331 if ((msg->sl.st.v_l == 8) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5332 ((rep->buf->p[5] > '1') ||
5333 ((rep->buf->p[5] == '1') && (rep->buf->p[7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5334 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5335
5336 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]5337 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]5338
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5339 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5340 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5341
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5342 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]5343
Willy Tarreau39650402010-03-15 19:44:39 +0100[diff] [blame]5344 /* Adjust server's health based on status code. Note: status codes 501
5345 * and 505 are triggered on demand by client request, so we must not
5346 * count them as server failures.
5347 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5348 if (objt_server(s->target)) {
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5349 if (txn->status >= 100 && (txn->status < 500 || txn->status == 501 || txn->status == 505))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5350 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_OK);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5351 else
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5352 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_STS);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5353 }
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5354
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5355 /*
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5356 * We may be facing a 100-continue response, or any other informational
5357 * 1xx response which is non-final, in which case this is not the right
5358 * response, and we're waiting for the next one. Let's allow this response
5359 * to go to the client and wait for the next one. There's an exception for
5360 * 101 which is used later in the code to switch protocols.
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5361 */
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5362 if (txn->status < 200 &&
5363 (txn->status == 100 || txn->status >= 102)) {
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5364 hdr_idx_init(&txn->hdr_idx);
5365 msg->next -= channel_forward(rep, msg->next);
5366 msg->msg_state = HTTP_MSG_RPBEFORE;
5367 txn->status = 0;
5368 s->logs.t_data = -1; /* was not a response yet */
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5369 FLT_STRM_CB(s, flt_http_reset(s, msg));
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5370 goto next_one;
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5371 }
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5372
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5373 /*
5374 * 2: check for cacheability.
5375 */
5376
5377 switch (txn->status) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5378 case 200:
5379 case 203:
5380 case 206:
5381 case 300:
5382 case 301:
5383 case 410:
5384 /* RFC2616 @13.4:
5385 * "A response received with a status code of
5386 * 200, 203, 206, 300, 301 or 410 MAY be stored
5387 * by a cache (...) unless a cache-control
5388 * directive prohibits caching."
5389 *
5390 * RFC2616 @9.5: POST method :
5391 * "Responses to this method are not cacheable,
5392 * unless the response includes appropriate
5393 * Cache-Control or Expires header fields."
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5394 */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5395 if (likely(txn->meth != HTTP_METH_POST) &&
Willy Tarreau67402132012-05-31 20:40:20 +0200[diff] [blame]5396 ((s->be->options & PR_O_CHK_CACHE) || (s->be->ck_opts & PR_CK_NOC)))
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5397 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
5398 break;
5399 default:
5400 break;
5401 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5402
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5403 /*
5404 * 3: we may need to capture headers
5405 */
5406 s->logs.logwait &= ~LW_RESP;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5407 if (unlikely((s->logs.logwait & LW_RSPHDR) && s->res_cap))
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5408 capture_headers(rep->buf->p, &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5409 s->res_cap, sess->fe->rsp_cap);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5410
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5411 /* 4: determine the transfer-length according to RFC2616 #4.4, updated
5412 * by RFC7230#3.3.3 :
5413 *
5414 * The length of a message body is determined by one of the following
5415 * (in order of precedence):
5416 *
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5417 * 1. Any 2xx (Successful) response to a CONNECT request implies that
5418 * the connection will become a tunnel immediately after the empty
5419 * line that concludes the header fields. A client MUST ignore
5420 * any Content-Length or Transfer-Encoding header fields received
5421 * in such a message. Any 101 response (Switching Protocols) is
5422 * managed in the same manner.
5423 *
5424 * 2. Any response to a HEAD request and any response with a 1xx
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5425 * (Informational), 204 (No Content), or 304 (Not Modified) status
5426 * code is always terminated by the first empty line after the
5427 * header fields, regardless of the header fields present in the
5428 * message, and thus cannot contain a message body.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5429 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5430 * 3. If a Transfer-Encoding header field is present and the chunked
5431 * transfer coding (Section 4.1) is the final encoding, the message
5432 * body length is determined by reading and decoding the chunked
5433 * data until the transfer coding indicates the data is complete.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5434 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5435 * If a Transfer-Encoding header field is present in a response and
5436 * the chunked transfer coding is not the final encoding, the
5437 * message body length is determined by reading the connection until
5438 * it is closed by the server. If a Transfer-Encoding header field
5439 * is present in a request and the chunked transfer coding is not
5440 * the final encoding, the message body length cannot be determined
5441 * reliably; the server MUST respond with the 400 (Bad Request)
5442 * status code and then close the connection.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5443 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5444 * If a message is received with both a Transfer-Encoding and a
5445 * Content-Length header field, the Transfer-Encoding overrides the
5446 * Content-Length. Such a message might indicate an attempt to
5447 * perform request smuggling (Section 9.5) or response splitting
5448 * (Section 9.4) and ought to be handled as an error. A sender MUST
5449 * remove the received Content-Length field prior to forwarding such
5450 * a message downstream.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5451 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5452 * 4. If a message is received without Transfer-Encoding and with
5453 * either multiple Content-Length header fields having differing
5454 * field-values or a single Content-Length header field having an
5455 * invalid value, then the message framing is invalid and the
5456 * recipient MUST treat it as an unrecoverable error. If this is a
5457 * request message, the server MUST respond with a 400 (Bad Request)
5458 * status code and then close the connection. If this is a response
5459 * message received by a proxy, the proxy MUST close the connection
5460 * to the server, discard the received response, and send a 502 (Bad
5461 * Gateway) response to the client. If this is a response message
5462 * received by a user agent, the user agent MUST close the
5463 * connection to the server and discard the received response.
5464 *
5465 * 5. If a valid Content-Length header field is present without
5466 * Transfer-Encoding, its decimal value defines the expected message
5467 * body length in octets. If the sender closes the connection or
5468 * the recipient times out before the indicated number of octets are
5469 * received, the recipient MUST consider the message to be
5470 * incomplete and close the connection.
5471 *
5472 * 6. If this is a request message and none of the above are true, then
5473 * the message body length is zero (no message body is present).
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5474 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5475 * 7. Otherwise, this is a response message without a declared message
5476 * body length, so the message body length is determined by the
5477 * number of octets received prior to the server closing the
5478 * connection.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5479 */
5480
5481 /* Skip parsing if no content length is possible. The response flags
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5482 * remain 0 as well as the chunk_len, which may or may not mirror
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5483 * the real header value, and we note that we know the response's length.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5484 * FIXME: should we parse anyway and return an error on chunked encoding ?
5485 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5486 if (unlikely((txn->meth == HTTP_METH_CONNECT && txn->status == 200) ||
5487 txn->status == 101)) {
5488 /* Either we've established an explicit tunnel, or we're
5489 * switching the protocol. In both cases, we're very unlikely
5490 * to understand the next protocols. We have to switch to tunnel
5491 * mode, so that we transfer the request and responses then let
5492 * this protocol pass unmodified. When we later implement specific
5493 * parsers for such protocols, we'll want to check the Upgrade
5494 * header which contains information about that protocol for
5495 * responses with status 101 (eg: see RFC2817 about TLS).
5496 */
5497 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_TUN;
5498 msg->flags |= HTTP_MSGF_XFER_LEN;
5499 goto end;
5500 }
5501
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5502 if (txn->meth == HTTP_METH_HEAD ||
5503 (txn->status >= 100 && txn->status < 200) ||
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5504 txn->status == 204 || txn->status == 304) {
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5505 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5506 goto skip_content_length;
5507 }
5508
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5509 use_close_only = 0;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5510 ctx.idx = 0;
Willy Tarreau4979d5c2015-05-01 10:06:30 +0200[diff] [blame]5511 while (http_find_header2("Transfer-Encoding", 17, rep->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5512 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5513 msg->flags |= (HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
5514 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5515 /* bad transfer-encoding (chunked followed by something else) */
5516 use_close_only = 1;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5517 msg->flags &= ~(HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5518 break;
5519 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5520 }
5521
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5522 /* Chunked responses must have their content-length removed */
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5523 ctx.idx = 0;
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]5524 if (use_close_only || (msg->flags & HTTP_MSGF_TE_CHNK)) {
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5525 while (http_find_header2("Content-Length", 14, rep->buf->p, &txn->hdr_idx, &ctx))
5526 http_remove_header2(msg, &txn->hdr_idx, &ctx);
5527 }
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]5528 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]5529 signed long long cl;
5530
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5531 if (!ctx.vlen) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5532 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5533 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5534 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5535
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5536 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5537 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5538 goto hdr_response_bad; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5539 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5540
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5541 if (cl < 0) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5542 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5543 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5544 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5545
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5546 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5547 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5548 goto hdr_response_bad; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5549 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5550
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5551 msg->flags |= HTTP_MSGF_CNT_LEN | HTTP_MSGF_XFER_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5552 msg->body_len = msg->chunk_len = cl;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5553 }
5554
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5555 skip_content_length:
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5556 /* Now we have to check if we need to modify the Connection header.
5557 * This is more difficult on the response than it is on the request,
5558 * because we can have two different HTTP versions and we don't know
5559 * how the client will interprete a response. For instance, let's say
5560 * that the client sends a keep-alive request in HTTP/1.0 and gets an
5561 * HTTP/1.1 response without any header. Maybe it will bound itself to
5562 * HTTP/1.0 because it only knows about it, and will consider the lack
5563 * of header as a close, or maybe it knows HTTP/1.1 and can consider
5564 * the lack of header as a keep-alive. Thus we will use two flags
5565 * indicating how a request MAY be understood by the client. In case
5566 * of multiple possibilities, we'll fix the header to be explicit. If
5567 * ambiguous cases such as both close and keepalive are seen, then we
5568 * will fall back to explicit close. Note that we won't take risks with
5569 * HTTP/1.0 clients which may not necessarily understand keep-alive.
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5570 * See doc/internals/connection-header.txt for the complete matrix.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5571 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5572 if ((txn->status >= 200) && !(txn->flags & TX_HDR_CONN_PRS) &&
5573 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN ||
5574 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
5575 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5576 int to_del = 0;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5577
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5578 /* this situation happens when combining pretend-keepalive with httpclose. */
5579 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5580 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5581 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5582 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
5583
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5584 /* on unknown transfer length, we must close */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5585 if (!(msg->flags & HTTP_MSGF_XFER_LEN) &&
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5586 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
5587 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5588
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5589 /* now adjust header transformations depending on current state */
5590 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN ||
5591 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
5592 to_del |= 2; /* remove "keep-alive" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5593 if (!(msg->flags & HTTP_MSGF_VER_11))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5594 to_del |= 1; /* remove "close" for HTTP/1.0 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5595 }
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5596 else { /* SCL / KAL */
5597 to_del |= 1; /* remove "close" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5598 if (txn->req.flags & msg->flags & HTTP_MSGF_VER_11)
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5599 to_del |= 2; /* remove "keep-alive" on pure 1.1 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5600 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5601
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5602 /* Parse and remove some headers from the connection header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]5603 http_parse_connection_header(txn, msg, to_del);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5604
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5605 /* Some keep-alive responses are converted to Server-close if
5606 * the server wants to close.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5607 */
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5608 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL) {
5609 if ((txn->flags & TX_HDR_CONN_CLO) ||
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5610 (!(txn->flags & TX_HDR_CONN_KAL) && !(msg->flags & HTTP_MSGF_VER_11)))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5611 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_SCL;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]5612 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5613 }
5614
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5615 end:
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5616 /* we want to have the response time before we start processing it */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5617 s->logs.t_data = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5618
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5619 /* end of job, return OK */
5620 rep->analysers &= ~an_bit;
5621 rep->analyse_exp = TICK_ETERNITY;
5622 channel_auto_close(rep);
5623 return 1;
5624
5625 abort_keep_alive:
5626 /* A keep-alive request to the server failed on a network error.
5627 * The client is required to retry. We need to close without returning
5628 * any other information so that the client retries.
5629 */
5630 txn->status = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5631 rep->analysers &= AN_RES_FLT_END;
5632 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5633 channel_auto_close(rep);
5634 s->logs.logwait = 0;
5635 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5636 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5637 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5638 http_reply_and_close(s, txn->status, NULL);
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5639 return 0;
5640}
5641
5642/* This function performs all the processing enabled for the current response.
5643 * It normally returns 1 unless it wants to break. It relies on buffers flags,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5644 * and updates s->res.analysers. It might make sense to explode it into several
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5645 * other functions. It works like process_request (see indications above).
5646 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5647int 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]5648{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5649 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5650 struct http_txn *txn = s->txn;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5651 struct http_msg *msg = &txn->rsp;
5652 struct proxy *cur_proxy;
5653 struct cond_wordlist *wl;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]5654 enum rule_result ret = HTTP_RULE_RES_CONT;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5655
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5656 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]5657 now_ms, __FUNCTION__,
5658 s,
5659 rep,
5660 rep->rex, rep->wex,
5661 rep->flags,
5662 rep->buf->i,
5663 rep->analysers);
5664
5665 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) /* we need more data */
5666 return 0;
5667
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5668 /* The stats applet needs to adjust the Connection header but we don't
5669 * apply any filter there.
5670 */
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5671 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
5672 rep->analysers &= ~an_bit;
5673 rep->analyse_exp = TICK_ETERNITY;
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5674 goto skip_filters;
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5675 }
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5676
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5677 /*
5678 * We will have to evaluate the filters.
5679 * As opposed to version 1.2, now they will be evaluated in the
5680 * filters order and not in the header order. This means that
5681 * each filter has to be validated among all headers.
5682 *
5683 * Filters are tried with ->be first, then with ->fe if it is
5684 * different from ->be.
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5685 *
5686 * Maybe we are in resume condiion. In this case I choose the
5687 * "struct proxy" which contains the rule list matching the resume
5688 * pointer. If none of theses "struct proxy" match, I initialise
5689 * the process with the first one.
5690 *
5691 * In fact, I check only correspondance betwwen the current list
5692 * pointer and the ->fe rule list. If it doesn't match, I initialize
5693 * the loop with the ->be.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5694 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5695 if (s->current_rule_list == &sess->fe->http_res_rules)
5696 cur_proxy = sess->fe;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5697 else
5698 cur_proxy = s->be;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5699 while (1) {
5700 struct proxy *rule_set = cur_proxy;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5701
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5702 /* evaluate http-response rules */
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5703 if (ret == HTTP_RULE_RES_CONT) {
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]5704 ret = http_res_get_intercept_rule(cur_proxy, &cur_proxy->http_res_rules, s);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]5705
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5706 if (ret == HTTP_RULE_RES_BADREQ)
5707 goto return_srv_prx_502;
5708
5709 if (ret == HTTP_RULE_RES_DONE) {
5710 rep->analysers &= ~an_bit;
5711 rep->analyse_exp = TICK_ETERNITY;
5712 return 1;
5713 }
5714 }
5715
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5716 /* we need to be called again. */
5717 if (ret == HTTP_RULE_RES_YIELD) {
5718 channel_dont_close(rep);
5719 return 0;
5720 }
5721
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5722 /* try headers filters */
5723 if (rule_set->rsp_exp != NULL) {
5724 if (apply_filters_to_response(s, rep, rule_set) < 0) {
5725 return_bad_resp:
5726 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5727 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5728 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_RSP);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5729 }
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5730 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5731 return_srv_prx_502:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5732 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5733 txn->status = 502;
5734 s->logs.t_data = -1; /* was not a valid response */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5735 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5736 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5737 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5738 if (!(s->flags & SF_ERR_MASK))
5739 s->flags |= SF_ERR_PRXCOND;
5740 if (!(s->flags & SF_FINST_MASK))
5741 s->flags |= SF_FINST_H;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5742 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5743 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5744 }
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5745
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5746 /* has the response been denied ? */
5747 if (txn->flags & TX_SVDENY) {
5748 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5749 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_secu, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5750
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5751 HA_ATOMIC_ADD(&s->be->be_counters.denied_resp, 1);
5752 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_resp, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5753 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]5754 HA_ATOMIC_ADD(&sess->listener->counters->denied_resp, 1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5755
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5756 goto return_srv_prx_502;
5757 }
Willy Tarreau0bbc3cf2006-10-15 14:26:02 +0200[diff] [blame]5758
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5759 /* add response headers from the rule sets in the same order */
5760 list_for_each_entry(wl, &rule_set->rsp_add, list) {
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5761 if (txn->status < 200 && txn->status != 101)
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5762 break;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5763 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]5764 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]5765 ret = acl_pass(ret);
5766 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
5767 ret = !ret;
5768 if (!ret)
5769 continue;
5770 }
5771 if (unlikely(http_header_add_tail(&txn->rsp, &txn->hdr_idx, wl->s) < 0))
5772 goto return_bad_resp;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5773 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5774
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5775 /* check whether we're already working on the frontend */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5776 if (cur_proxy == sess->fe)
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5777 break;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5778 cur_proxy = sess->fe;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5779 }
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5780
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5781 /* After this point, this anayzer can't return yield, so we can
5782 * remove the bit corresponding to this analyzer from the list.
5783 *
5784 * Note that the intermediate returns and goto found previously
5785 * reset the analyzers.
5786 */
5787 rep->analysers &= ~an_bit;
5788 rep->analyse_exp = TICK_ETERNITY;
5789
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5790 /* OK that's all we can do for 1xx responses */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5791 if (unlikely(txn->status < 200 && txn->status != 101))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5792 goto skip_header_mangling;
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5793
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5794 /*
5795 * Now check for a server cookie.
5796 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]5797 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]5798 manage_server_side_cookies(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5799
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5800 /*
5801 * Check for cache-control or pragma headers if required.
5802 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5803 if (((s->be->options & PR_O_CHK_CACHE) || (s->be->ck_opts & PR_CK_NOC)) && txn->status != 101)
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5804 check_response_for_cacheability(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5805
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5806 /*
5807 * Add server cookie in the response if needed
5808 */
5809 if (objt_server(s->target) && (s->be->ck_opts & PR_CK_INS) &&
5810 !((txn->flags & TX_SCK_FOUND) && (s->be->ck_opts & PR_CK_PSV)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5811 (!(s->flags & SF_DIRECT) ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5812 ((s->be->cookie_maxidle || txn->cookie_last_date) &&
5813 (!txn->cookie_last_date || (txn->cookie_last_date - date.tv_sec) < 0)) ||
5814 (s->be->cookie_maxlife && !txn->cookie_first_date) || // set the first_date
5815 (!s->be->cookie_maxlife && txn->cookie_first_date)) && // remove the first_date
5816 (!(s->be->ck_opts & PR_CK_POST) || (txn->meth == HTTP_METH_POST)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5817 !(s->flags & SF_IGNORE_PRST)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5818 /* the server is known, it's not the one the client requested, or the
5819 * cookie's last seen date needs to be refreshed. We have to
5820 * insert a set-cookie here, except if we want to insert only on POST
5821 * requests and this one isn't. Note that servers which don't have cookies
5822 * (eg: some backup servers) will return a full cookie removal request.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5823 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5824 if (!objt_server(s->target)->cookie) {
5825 chunk_printf(&trash,
5826 "Set-Cookie: %s=; Expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/",
5827 s->be->cookie_name);
5828 }
5829 else {
5830 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]5831
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5832 if (s->be->cookie_maxidle || s->be->cookie_maxlife) {
5833 /* emit last_date, which is mandatory */
5834 trash.str[trash.len++] = COOKIE_DELIM_DATE;
5835 s30tob64((date.tv_sec+3) >> 2, trash.str + trash.len);
5836 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5837
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5838 if (s->be->cookie_maxlife) {
5839 /* emit first_date, which is either the original one or
5840 * the current date.
5841 */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]5842 trash.str[trash.len++] = COOKIE_DELIM_DATE;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5843 s30tob64(txn->cookie_first_date ?
5844 txn->cookie_first_date >> 2 :
5845 (date.tv_sec+3) >> 2, trash.str + trash.len);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]5846 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5847 }
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5848 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5849 chunk_appendf(&trash, "; path=/");
5850 }
Willy Tarreau4992dd22012-05-31 21:02:17 +0200[diff] [blame]5851
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5852 if (s->be->cookie_domain)
5853 chunk_appendf(&trash, "; domain=%s", s->be->cookie_domain);
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5854
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5855 if (s->be->ck_opts & PR_CK_HTTPONLY)
5856 chunk_appendf(&trash, "; HttpOnly");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5857
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5858 if (s->be->ck_opts & PR_CK_SECURE)
5859 chunk_appendf(&trash, "; Secure");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5860
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5861 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx, trash.str, trash.len) < 0))
5862 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5863
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5864 txn->flags &= ~TX_SCK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5865 if (objt_server(s->target)->cookie && (s->flags & SF_DIRECT))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5866 /* the server did not change, only the date was updated */
5867 txn->flags |= TX_SCK_UPDATED;
5868 else
5869 txn->flags |= TX_SCK_INSERTED;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5870
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5871 /* Here, we will tell an eventual cache on the client side that we don't
5872 * want it to cache this reply because HTTP/1.0 caches also cache cookies !
5873 * Some caches understand the correct form: 'no-cache="set-cookie"', but
5874 * others don't (eg: apache <= 1.3.26). So we use 'private' instead.
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5875 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5876 if ((s->be->ck_opts & PR_CK_NOC) && (txn->flags & TX_CACHEABLE)) {
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5877
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5878 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5879
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5880 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx,
5881 "Cache-control: private", 22) < 0))
5882 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5883 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5884 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5885
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5886 /*
5887 * Check if result will be cacheable with a cookie.
5888 * We'll block the response if security checks have caught
5889 * nasty things such as a cacheable cookie.
5890 */
5891 if (((txn->flags & (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) ==
5892 (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) &&
5893 (s->be->options & PR_O_CHK_CACHE)) {
5894 /* we're in presence of a cacheable response containing
5895 * a set-cookie header. We'll block it as requested by
5896 * the 'checkcache' option, and send an alert.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5897 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5898 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5899 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_secu, 1);
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5900
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5901 HA_ATOMIC_ADD(&s->be->be_counters.denied_resp, 1);
5902 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_resp, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5903 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]5904 HA_ATOMIC_ADD(&sess->listener->counters->denied_resp, 1);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5905
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]5906 ha_alert("Blocking cacheable cookie in response from instance %s, server %s.\n",
5907 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5908 send_log(s->be, LOG_ALERT,
5909 "Blocking cacheable cookie in response from instance %s, server %s.\n",
5910 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
5911 goto return_srv_prx_502;
5912 }
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]5913
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5914 skip_filters:
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5915 /*
5916 * Adjust "Connection: close" or "Connection: keep-alive" if needed.
5917 * If an "Upgrade" token is found, the header is left untouched in order
5918 * 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]5919 * if anything but "Upgrade" is present in the Connection header. We don't
5920 * want to touch any 101 response either since it's switching to another
5921 * protocol.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5922 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5923 if ((txn->status != 101) && !(txn->flags & TX_HDR_CONN_UPG) &&
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5924 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5925 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5926 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
5927 unsigned int want_flags = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5928
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5929 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
5930 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
5931 /* we want a keep-alive response here. Keep-alive header
5932 * required if either side is not 1.1.
5933 */
5934 if (!(txn->req.flags & msg->flags & HTTP_MSGF_VER_11))
5935 want_flags |= TX_CON_KAL_SET;
5936 }
5937 else {
5938 /* we want a close response here. Close header required if
5939 * the server is 1.1, regardless of the client.
5940 */
5941 if (msg->flags & HTTP_MSGF_VER_11)
5942 want_flags |= TX_CON_CLO_SET;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5943 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5944
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5945 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
5946 http_change_connection_header(txn, msg, want_flags);
5947 }
5948
5949 skip_header_mangling:
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]5950 /* Always enter in the body analyzer */
5951 rep->analysers &= ~AN_RES_FLT_XFER_DATA;
5952 rep->analysers |= AN_RES_HTTP_XFER_BODY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5953
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5954 /* if the user wants to log as soon as possible, without counting
5955 * bytes from the server, then this is the right moment. We have
5956 * to temporarily assign bytes_out to log what we currently have.
5957 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5958 if (!LIST_ISEMPTY(&sess->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5959 s->logs.t_close = s->logs.t_data; /* to get a valid end date */
5960 s->logs.bytes_out = txn->rsp.eoh;
5961 s->do_log(s);
5962 s->logs.bytes_out = 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5963 }
Willy Tarreaue3fa6e52010-01-04 22:57:43 +0100[diff] [blame]5964 return 1;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5965}
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5966
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5967/* This function is an analyser which forwards response body (including chunk
5968 * sizes if any). It is called as soon as we must forward, even if we forward
5969 * zero byte. The only situation where it must not be called is when we're in
5970 * tunnel mode and we want to forward till the close. It's used both to forward
5971 * remaining data and to resync after end of body. It expects the msg_state to
5972 * 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]5973 * 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]5974 *
5975 * It is capable of compressing response data both in content-length mode and
5976 * in chunked mode. The state machines follows different flows depending on
5977 * whether content-length and chunked modes are used, since there are no
5978 * trailers in content-length :
5979 *
5980 * chk-mode cl-mode
5981 * ,----- BODY -----.
5982 * / \
5983 * V size > 0 V chk-mode
5984 * .--> SIZE -------------> DATA -------------> CRLF
5985 * | | size == 0 | last byte |
5986 * | v final crlf v inspected |
5987 * | TRAILERS -----------> DONE |
5988 * | |
5989 * `----------------------------------------------'
5990 *
5991 * Compression only happens in the DATA state, and must be flushed in final
5992 * states (TRAILERS/DONE) or when leaving on missing data. Normal forwarding
5993 * is performed at once on final states for all bytes parsed, or when leaving
5994 * on missing data.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5995 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5996int http_response_forward_body(struct stream *s, struct channel *res, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5997{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5998 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5999 struct http_txn *txn = s->txn;
6000 struct http_msg *msg = &s->txn->rsp;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]6001 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6002
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]6003 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
6004 now_ms, __FUNCTION__,
6005 s,
6006 res,
6007 res->rex, res->wex,
6008 res->flags,
6009 res->buf->i,
6010 res->analysers);
6011
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6012 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
6013 return 0;
6014
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6015 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]6016 ((res->flags & CF_SHUTW) && (res->to_forward || res->buf->o)) ||
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6017 !s->req.analysers) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6018 /* Output closed while we were sending data. We must abort and
6019 * wake the other side up.
6020 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6021 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6022 msg->msg_state = HTTP_MSG_ERROR;
6023 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]6024 return 1;
6025 }
6026
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6027 /* in most states, we should abort in case of early close */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6028 channel_auto_close(res);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]6029
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6030 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6031 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
6032 ? HTTP_MSG_CHUNK_SIZE
6033 : HTTP_MSG_DATA);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6034 }
6035
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6036 if (res->to_forward) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6037 /* We can't process the buffer's contents yet */
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6038 res->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6039 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6040 }
6041
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6042 if (msg->msg_state < HTTP_MSG_DONE) {
6043 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
6044 ? http_msg_forward_chunked_body(s, msg)
6045 : http_msg_forward_body(s, msg));
6046 if (!ret)
6047 goto missing_data_or_waiting;
6048 if (ret < 0)
6049 goto return_bad_res;
6050 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6051
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6052 /* other states, DONE...TUNNEL */
6053 /* for keep-alive we don't want to forward closes on DONE */
6054 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6055 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
6056 channel_dont_close(res);
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]6057
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]6058 http_resync_states(s);
6059 if (!(res->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6060 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
6061 if (res->flags & CF_SHUTW) {
6062 /* response errors are most likely due to the
6063 * client aborting the transfer. */
6064 goto aborted_xfer;
Willy Tarreau5523b322009-12-29 12:05:52 +0100[diff] [blame]6065 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6066 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6067 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]6068 goto return_bad_res;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6069 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6070 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6071 }
Willy Tarreauf51d03c2016-05-02 15:25:15 +0200[diff] [blame]6072 return 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6073
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6074 missing_data_or_waiting:
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6075 if (res->flags & CF_SHUTW)
6076 goto aborted_xfer;
6077
6078 /* stop waiting for data if the input is closed before the end. If the
6079 * client side was already closed, it means that the client has aborted,
6080 * so we don't want to count this as a server abort. Otherwise it's a
6081 * server abort.
6082 */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]6083 if (msg->msg_state < HTTP_MSG_ENDING && res->flags & CF_SHUTR) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6084 if ((s->req.flags & (CF_SHUTR|CF_SHUTW)) == (CF_SHUTR|CF_SHUTW))
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6085 goto aborted_xfer;
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6086 /* If we have some pending data, we continue the processing */
6087 if (!buffer_pending(res->buf)) {
6088 if (!(s->flags & SF_ERR_MASK))
6089 s->flags |= SF_ERR_SRVCL;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6090 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6091 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6092 HA_ATOMIC_ADD(&objt_server(s->target)->counters.srv_aborts, 1);
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6093 goto return_bad_res_stats_ok;
6094 }
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6095 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6096
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6097 /* we need to obey the req analyser, so if it leaves, we must too */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6098 if (!s->req.analysers)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]6099 goto return_bad_res;
6100
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6101 /* When TE: chunked is used, we need to get there again to parse
6102 * remaining chunks even if the server has closed, so we don't want to
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6103 * set CF_DONTCLOSE. Similarly, if keep-alive is set on the client side
6104 * or if there are filters registered on the stream, we don't want to
6105 * forward a close
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6106 */
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6107 if ((msg->flags & HTTP_MSGF_TE_CHNK) ||
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]6108 HAS_DATA_FILTERS(s, res) ||
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6109 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6110 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6111 channel_dont_close(res);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6112
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6113 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6114 * 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]6115 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]6116 * modes are already handled by the stream sock layer. We must not do
6117 * this in content-length mode because it could present the MSG_MORE
6118 * flag with the last block of forwarded data, which would cause an
6119 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6120 */
Christopher Faulet92d36382015-11-05 13:35:03 +0100[diff] [blame]6121 if ((msg->flags & HTTP_MSGF_TE_CHNK) || (msg->flags & HTTP_MSGF_COMPRESSING))
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6122 res->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6123
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6124 /* the stream handler will take care of timeouts and errors */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6125 return 0;
6126
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6127 return_bad_res: /* let's centralize all bad responses */
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6128 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[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.failed_resp, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6131
6132 return_bad_res_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6133 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6134 txn->rsp.msg_state = HTTP_MSG_ERROR;
Willy Tarreau148d0992010-01-10 10:21:21 +0100[diff] [blame]6135 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6136 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6137 res->analysers &= AN_RES_FLT_END;
6138 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]6139 if (objt_server(s->target))
6140 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6141
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6142 if (!(s->flags & SF_ERR_MASK))
6143 s->flags |= SF_ERR_PRXCOND;
6144 if (!(s->flags & SF_FINST_MASK))
6145 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6146 return 0;
6147
6148 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6149 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6150 txn->rsp.msg_state = HTTP_MSG_ERROR;
6151 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6152 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6153 res->analysers &= AN_RES_FLT_END;
6154 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]6155
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6156 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
6157 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6158 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6159 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6160
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6161 if (!(s->flags & SF_ERR_MASK))
6162 s->flags |= SF_ERR_CLICL;
6163 if (!(s->flags & SF_FINST_MASK))
6164 s->flags |= SF_FINST_D;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6165 return 0;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6166}
6167
6168
6169static inline int
6170http_msg_forward_body(struct stream *s, struct http_msg *msg)
6171{
6172 struct channel *chn = msg->chn;
6173 int ret;
6174
6175 /* Here we have the guarantee to be in HTTP_MSG_DATA or HTTP_MSG_ENDING state */
6176
6177 if (msg->msg_state == HTTP_MSG_ENDING)
6178 goto ending;
6179
6180 /* Neither content-length, nor transfer-encoding was found, so we must
6181 * read the body until the server connection is closed. In that case, we
6182 * eat data as they come. Of course, this happens for response only. */
6183 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6184 unsigned long long len = (chn->buf->i - msg->next);
6185 msg->chunk_len += len;
6186 msg->body_len += len;
6187 }
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6188 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6189 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6190 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6191 msg->next += ret;
6192 msg->chunk_len -= ret;
6193 if (msg->chunk_len) {
6194 /* input empty or output full */
6195 if (chn->buf->i > msg->next)
6196 chn->flags |= CF_WAKE_WRITE;
6197 goto missing_data_or_waiting;
6198 }
6199
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]6200 /* This check can only be true for a response. HTTP_MSGF_XFER_LEN is
6201 * always set for a request. */
6202 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6203 /* The server still sending data that should be filtered */
6204 if (!(chn->flags & CF_SHUTR) && HAS_DATA_FILTERS(s, chn))
6205 goto missing_data_or_waiting;
6206 }
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]6207
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6208 msg->msg_state = HTTP_MSG_ENDING;
6209
6210 ending:
6211 /* we may have some pending data starting at res->buf->p such as a last
6212 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6213 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6214 /* default_ret */ msg->next,
6215 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6216 b_adv(chn->buf, ret);
6217 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6218 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6219 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6220 if (msg->next)
6221 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6222
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6223 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
6224 /* default_ret */ 1,
6225 /* on_error */ goto error,
6226 /* on_wait */ goto waiting);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6227 msg->msg_state = HTTP_MSG_DONE;
6228 return 1;
6229
6230 missing_data_or_waiting:
6231 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6232 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6233 /* default_ret */ msg->next,
6234 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6235 b_adv(chn->buf, ret);
6236 msg->next -= ret;
6237 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6238 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6239 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6240 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6241 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6242 return 0;
6243 error:
6244 return -1;
6245}
6246
6247static inline int
6248http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg)
6249{
6250 struct channel *chn = msg->chn;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6251 unsigned int chunk;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6252 int ret;
6253
6254 /* Here we have the guarantee to be in one of the following state:
6255 * HTTP_MSG_DATA, HTTP_MSG_CHUNK_SIZE, HTTP_MSG_CHUNK_CRLF,
6256 * HTTP_MSG_TRAILERS or HTTP_MSG_ENDING. */
6257
6258 switch_states:
6259 switch (msg->msg_state) {
6260 case HTTP_MSG_DATA:
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6261 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6262 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6263 /* on_error */ goto error);
6264 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6265 msg->chunk_len -= ret;
6266 if (msg->chunk_len) {
6267 /* input empty or output full */
6268 if (chn->buf->i > msg->next)
6269 chn->flags |= CF_WAKE_WRITE;
6270 goto missing_data_or_waiting;
6271 }
6272
6273 /* nothing left to forward for this chunk*/
6274 msg->msg_state = HTTP_MSG_CHUNK_CRLF;
6275 /* fall through for HTTP_MSG_CHUNK_CRLF */
6276
6277 case HTTP_MSG_CHUNK_CRLF:
6278 /* we want the CRLF after the data */
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6279 ret = h1_skip_chunk_crlf(chn->buf, msg->next, chn->buf->i);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6280 if (ret == 0)
6281 goto missing_data_or_waiting;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6282 if (ret < 0) {
6283 msg->err_pos = chn->buf->i + ret;
6284 if (msg->err_pos < 0)
6285 msg->err_pos += chn->buf->size;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6286 goto chunk_parsing_error;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6287 }
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6288 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6289 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
6290 /* fall through for HTTP_MSG_CHUNK_SIZE */
6291
6292 case HTTP_MSG_CHUNK_SIZE:
6293 /* read the chunk size and assign it to ->chunk_len,
6294 * then set ->next to point to the body and switch to
6295 * DATA or TRAILERS state.
6296 */
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6297 ret = h1_parse_chunk_size(chn->buf, msg->next, chn->buf->i, &chunk);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6298 if (ret == 0)
6299 goto missing_data_or_waiting;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6300 if (ret < 0) {
6301 msg->err_pos = chn->buf->i + ret;
6302 if (msg->err_pos < 0)
6303 msg->err_pos += chn->buf->size;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6304 goto chunk_parsing_error;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6305 }
6306
6307 msg->sol = ret;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6308 msg->next += ret;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6309 msg->chunk_len = chunk;
6310 msg->body_len += chunk;
6311
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6312 if (msg->chunk_len) {
6313 msg->msg_state = HTTP_MSG_DATA;
6314 goto switch_states;
6315 }
6316 msg->msg_state = HTTP_MSG_TRAILERS;
6317 /* fall through for HTTP_MSG_TRAILERS */
6318
6319 case HTTP_MSG_TRAILERS:
6320 ret = http_forward_trailers(msg);
6321 if (ret < 0)
6322 goto chunk_parsing_error;
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6323 FLT_STRM_DATA_CB(s, chn, flt_http_chunk_trailers(s, msg),
6324 /* default_ret */ 1,
6325 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6326 msg->next += msg->sol;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6327 if (!ret)
6328 goto missing_data_or_waiting;
6329 break;
6330
6331 case HTTP_MSG_ENDING:
6332 goto ending;
6333
6334 default:
6335 /* This should no happen in this function */
6336 goto error;
6337 }
6338
6339 msg->msg_state = HTTP_MSG_ENDING;
6340 ending:
6341 /* we may have some pending data starting at res->buf->p such as a last
6342 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6343 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]6344 /* default_ret */ msg->next,
6345 /* on_error */ goto error);
6346 b_adv(chn->buf, ret);
6347 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6348 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6349 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6350 if (msg->next)
6351 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6352
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6353 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6354 /* default_ret */ 1,
6355 /* on_error */ goto error,
6356 /* on_wait */ goto waiting);
6357 msg->msg_state = HTTP_MSG_DONE;
6358 return 1;
6359
6360 missing_data_or_waiting:
6361 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6362 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]6363 /* default_ret */ msg->next,
6364 /* on_error */ goto error);
6365 b_adv(chn->buf, ret);
6366 msg->next -= ret;
6367 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6368 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6369 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6370 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6371 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6372 return 0;
6373
6374 chunk_parsing_error:
6375 if (msg->err_pos >= 0) {
6376 if (chn->flags & CF_ISRESP)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6377 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg,
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6378 msg->msg_state, strm_fe(s));
6379 else
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6380 http_capture_bad_message(strm_fe(s), &strm_fe(s)->invalid_req, s,
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6381 msg, msg->msg_state, s->be);
6382 }
6383 error:
6384 return -1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6385}
6386
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6387
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6388/* Iterate the same filter through all request headers.
6389 * Returns 1 if this filter can be stopped upon return, otherwise 0.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6390 * Since it can manage the switch to another backend, it updates the per-proxy
6391 * DENY stats.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6392 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6393int 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]6394{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6395 char *cur_ptr, *cur_end, *cur_next;
6396 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6397 struct http_txn *txn = s->txn;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6398 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6399 int delta;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100[diff] [blame]6400
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6401 last_hdr = 0;
6402
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6403 cur_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6404 old_idx = 0;
6405
6406 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6407 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6408 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6409 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6410 (exp->action == ACT_ALLOW ||
6411 exp->action == ACT_DENY ||
6412 exp->action == ACT_TARPIT))
6413 return 0;
6414
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6415 cur_idx = txn->hdr_idx.v[old_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6416 if (!cur_idx)
6417 break;
6418
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6419 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6420 cur_ptr = cur_next;
6421 cur_end = cur_ptr + cur_hdr->len;
6422 cur_next = cur_end + cur_hdr->cr + 1;
6423
6424 /* Now we have one header between cur_ptr and cur_end,
6425 * and the next header starts at cur_next.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6426 */
6427
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]6428 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]6429 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6430 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6431 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6432 last_hdr = 1;
6433 break;
6434
6435 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6436 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6437 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6438 break;
6439
6440 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6441 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6442 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6443 break;
6444
6445 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6446 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
6447 if (trash.len < 0)
6448 return -1;
6449
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6450 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6451 /* FIXME: if the user adds a newline in the replacement, the
6452 * index will not be recalculated for now, and the new line
6453 * will not be counted as a new header.
6454 */
6455
6456 cur_end += delta;
6457 cur_next += delta;
6458 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6459 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6460 break;
6461
6462 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6463 delta = buffer_replace2(req->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6464 cur_next += delta;
6465
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6466 http_msg_move_end(&txn->req, delta);
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6467 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
6468 txn->hdr_idx.used--;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6469 cur_hdr->len = 0;
6470 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]6471 cur_idx = old_idx;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6472 break;
6473
6474 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6475 }
6476
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6477 /* keep the link from this header to next one in case of later
6478 * removal of next header.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6479 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6480 old_idx = cur_idx;
6481 }
6482 return 0;
6483}
6484
6485
6486/* Apply the filter to the request line.
6487 * Returns 0 if nothing has been done, 1 if the filter has been applied,
6488 * or -1 if a replacement resulted in an invalid request line.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6489 * Since it can manage the switch to another backend, it updates the per-proxy
6490 * DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6491 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6492int 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]6493{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6494 char *cur_ptr, *cur_end;
6495 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6496 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6497 int delta;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6498
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6499 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6500 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6501 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6502 (exp->action == ACT_ALLOW ||
6503 exp->action == ACT_DENY ||
6504 exp->action == ACT_TARPIT))
6505 return 0;
6506 else if (exp->action == ACT_REMOVE)
6507 return 0;
6508
6509 done = 0;
6510
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6511 cur_ptr = req->buf->p;
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6512 cur_end = cur_ptr + txn->req.sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6513
6514 /* Now we have the request line between cur_ptr and cur_end */
6515
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]6516 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]6517 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6518 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6519 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6520 done = 1;
6521 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6522
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6523 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6524 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6525 done = 1;
6526 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6527
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6528 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6529 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6530 done = 1;
6531 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6532
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6533 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6534 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
6535 if (trash.len < 0)
6536 return -1;
6537
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6538 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6539 /* FIXME: if the user adds a newline in the replacement, the
6540 * index will not be recalculated for now, and the new line
6541 * will not be counted as a new header.
6542 */
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6543
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6544 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6545 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]6546 cur_end = (char *)http_parse_reqline(&txn->req,
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6547 HTTP_MSG_RQMETH,
6548 cur_ptr, cur_end + 1,
6549 NULL, NULL);
6550 if (unlikely(!cur_end))
6551 return -1;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6552
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6553 /* we have a full request and we know that we have either a CR
6554 * or an LF at <ptr>.
6555 */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6556 txn->meth = find_http_meth(cur_ptr, txn->req.sl.rq.m_l);
6557 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]6558 /* there is no point trying this regex on headers */
6559 return 1;
6560 }
6561 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6562 return done;
6563}
Willy Tarreau97de6242006-12-27 17:18:38 +0100[diff] [blame]6564
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6565
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6566
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6567/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6568 * 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]6569 * 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]6570 * unparsable request. Since it can manage the switch to another backend, it
6571 * updates the per-proxy DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6572 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6573int apply_filters_to_request(struct stream *s, struct channel *req, struct proxy *px)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6574{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6575 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6576 struct http_txn *txn = s->txn;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6577 struct hdr_exp *exp;
6578
6579 for (exp = px->req_exp; exp; exp = exp->next) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6580 int ret;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6581
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6582 /*
6583 * The interleaving of transformations and verdicts
6584 * makes it difficult to decide to continue or stop
6585 * the evaluation.
6586 */
6587
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6588 if (txn->flags & (TX_CLDENY|TX_CLTARPIT))
6589 break;
6590
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6591 if ((txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6592 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6593 exp->action == ACT_TARPIT || exp->action == ACT_PASS))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6594 continue;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6595
6596 /* if this filter had a condition, evaluate it now and skip to
6597 * next filter if the condition does not match.
6598 */
6599 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6600 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]6601 ret = acl_pass(ret);
6602 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
6603 ret = !ret;
6604
6605 if (!ret)
6606 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6607 }
6608
6609 /* Apply the filter to the request line. */
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6610 ret = apply_filter_to_req_line(s, req, exp);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6611 if (unlikely(ret < 0))
6612 return -1;
6613
6614 if (likely(ret == 0)) {
6615 /* The filter did not match the request, it can be
6616 * iterated through all headers.
6617 */
Willy Tarreau34d4c3c2015-01-30 20:58:58 +0100[diff] [blame]6618 if (unlikely(apply_filter_to_req_headers(s, req, exp) < 0))
6619 return -1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6620 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6621 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6622 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6623}
6624
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6625
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6626/* Find the end of a cookie value contained between <s> and <e>. It works the
6627 * same way as with headers above except that the semi-colon also ends a token.
6628 * See RFC2965 for more information. Note that it requires a valid header to
6629 * return a valid result.
6630 */
6631char *find_cookie_value_end(char *s, const char *e)
6632{
6633 int quoted, qdpair;
6634
6635 quoted = qdpair = 0;
6636 for (; s < e; s++) {
6637 if (qdpair) qdpair = 0;
6638 else if (quoted) {
6639 if (*s == '\\') qdpair = 1;
6640 else if (*s == '"') quoted = 0;
6641 }
6642 else if (*s == '"') quoted = 1;
6643 else if (*s == ',' || *s == ';') return s;
6644 }
6645 return s;
6646}
6647
6648/* Delete a value in a header between delimiters <from> and <next> in buffer
6649 * <buf>. The number of characters displaced is returned, and the pointer to
6650 * the first delimiter is updated if required. The function tries as much as
6651 * possible to respect the following principles :
6652 * - replace <from> delimiter by the <next> one unless <from> points to a
6653 * colon, in which case <next> is simply removed
6654 * - set exactly one space character after the new first delimiter, unless
6655 * there are not enough characters in the block being moved to do so.
6656 * - remove unneeded spaces before the previous delimiter and after the new
6657 * one.
6658 *
6659 * It is the caller's responsibility to ensure that :
6660 * - <from> points to a valid delimiter or the colon ;
6661 * - <next> points to a valid delimiter or the final CR/LF ;
6662 * - there are non-space chars before <from> ;
6663 * - there is a CR/LF at or after <next>.
6664 */
Willy Tarreauaf819352012-08-27 22:08:00 +0200[diff] [blame]6665int del_hdr_value(struct buffer *buf, char **from, char *next)
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6666{
6667 char *prev = *from;
6668
6669 if (*prev == ':') {
6670 /* We're removing the first value, preserve the colon and add a
6671 * space if possible.
6672 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6673 if (!HTTP_IS_CRLF(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6674 next++;
6675 prev++;
6676 if (prev < next)
6677 *prev++ = ' ';
6678
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6679 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6680 next++;
6681 } else {
6682 /* Remove useless spaces before the old delimiter. */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6683 while (HTTP_IS_SPHT(*(prev-1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6684 prev--;
6685 *from = prev;
6686
6687 /* copy the delimiter and if possible a space if we're
6688 * not at the end of the line.
6689 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6690 if (!HTTP_IS_CRLF(*next)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6691 *prev++ = *next++;
6692 if (prev + 1 < next)
6693 *prev++ = ' ';
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6694 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6695 next++;
6696 }
6697 }
6698 return buffer_replace2(buf, prev, next, NULL, 0);
6699}
6700
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6701/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]6702 * Manage client-side cookie. It can impact performance by about 2% so it is
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6703 * desirable to call it only when needed. This code is quite complex because
6704 * of the multiple very crappy and ambiguous syntaxes we have to support. it
6705 * highly recommended not to touch this part without a good reason !
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6706 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6707void manage_client_side_cookies(struct stream *s, struct channel *req)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6708{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6709 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6710 struct session *sess = s->sess;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6711 int preserve_hdr;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6712 int cur_idx, old_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6713 char *hdr_beg, *hdr_end, *hdr_next, *del_from;
6714 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6715
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6716 /* Iterate through the headers, we start with the start line. */
Willy Tarreau83969f42007-01-22 08:55:47 +0100[diff] [blame]6717 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6718 hdr_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6719
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6720 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6721 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6722 int val;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6723
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6724 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6725 hdr_beg = hdr_next;
6726 hdr_end = hdr_beg + cur_hdr->len;
6727 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6728
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6729 /* We have one full header between hdr_beg and hdr_end, and the
6730 * next header starts at hdr_next. We're only interested in
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6731 * "Cookie:" headers.
6732 */
6733
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6734 val = http_header_match2(hdr_beg, hdr_end, "Cookie", 6);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6735 if (!val) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6736 old_idx = cur_idx;
6737 continue;
6738 }
6739
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6740 del_from = NULL; /* nothing to be deleted */
6741 preserve_hdr = 0; /* assume we may kill the whole header */
6742
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6743 /* Now look for cookies. Conforming to RFC2109, we have to support
6744 * attributes whose name begin with a '$', and associate them with
6745 * the right cookie, if we want to delete this cookie.
6746 * So there are 3 cases for each cookie read :
6747 * 1) it's a special attribute, beginning with a '$' : ignore it.
6748 * 2) it's a server id cookie that we *MAY* want to delete : save
6749 * some pointers on it (last semi-colon, beginning of cookie...)
6750 * 3) it's an application cookie : we *MAY* have to delete a previous
6751 * "special" cookie.
6752 * At the end of loop, if a "special" cookie remains, we may have to
6753 * remove it. If no application cookie persists in the header, we
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6754 * *MUST* delete it.
6755 *
6756 * Note: RFC2965 is unclear about the processing of spaces around
6757 * the equal sign in the ATTR=VALUE form. A careful inspection of
6758 * the RFC explicitly allows spaces before it, and not within the
6759 * tokens (attrs or values). An inspection of RFC2109 allows that
6760 * too but section 10.1.3 lets one think that spaces may be allowed
6761 * after the equal sign too, resulting in some (rare) buggy
6762 * implementations trying to do that. So let's do what servers do.
6763 * Latest ietf draft forbids spaces all around. Also, earlier RFCs
6764 * allowed quoted strings in values, with any possible character
6765 * after a backslash, including control chars and delimitors, which
6766 * causes parsing to become ambiguous. Browsers also allow spaces
6767 * within values even without quotes.
6768 *
6769 * We have to keep multiple pointers in order to support cookie
6770 * removal at the beginning, middle or end of header without
6771 * corrupting the header. All of these headers are valid :
6772 *
6773 * Cookie:NAME1=VALUE1;NAME2=VALUE2;NAME3=VALUE3\r\n
6774 * Cookie:NAME1=VALUE1;NAME2_ONLY ;NAME3=VALUE3\r\n
6775 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
6776 * | | | | | | | | |
6777 * | | | | | | | | hdr_end <--+
6778 * | | | | | | | +--> next
6779 * | | | | | | +----> val_end
6780 * | | | | | +-----------> val_beg
6781 * | | | | +--------------> equal
6782 * | | | +----------------> att_end
6783 * | | +---------------------> att_beg
6784 * | +--------------------------> prev
6785 * +--------------------------------> hdr_beg
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6786 */
6787
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6788 for (prev = hdr_beg + 6; prev < hdr_end; prev = next) {
6789 /* Iterate through all cookies on this line */
6790
6791 /* find att_beg */
6792 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6793 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6794 att_beg++;
6795
6796 /* find att_end : this is the first character after the last non
6797 * space before the equal. It may be equal to hdr_end.
6798 */
6799 equal = att_end = att_beg;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6800
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6801 while (equal < hdr_end) {
6802 if (*equal == '=' || *equal == ',' || *equal == ';')
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6803 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6804 if (HTTP_IS_SPHT(*equal++))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6805 continue;
6806 att_end = equal;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6807 }
6808
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6809 /* here, <equal> points to '=', a delimitor or the end. <att_end>
6810 * is between <att_beg> and <equal>, both may be identical.
6811 */
6812
6813 /* look for end of cookie if there is an equal sign */
6814 if (equal < hdr_end && *equal == '=') {
6815 /* look for the beginning of the value */
6816 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6817 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6818 val_beg++;
6819
6820 /* find the end of the value, respecting quotes */
6821 next = find_cookie_value_end(val_beg, hdr_end);
6822
6823 /* make val_end point to the first white space or delimitor after the value */
6824 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6825 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6826 val_end--;
6827 } else {
6828 val_beg = val_end = next = equal;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6829 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6830
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6831 /* We have nothing to do with attributes beginning with '$'. However,
6832 * they will automatically be removed if a header before them is removed,
6833 * since they're supposed to be linked together.
6834 */
6835 if (*att_beg == '$')
6836 continue;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6837
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6838 /* Ignore cookies with no equal sign */
6839 if (equal == next) {
6840 /* This is not our cookie, so we must preserve it. But if we already
6841 * scheduled another cookie for removal, we cannot remove the
6842 * complete header, but we can remove the previous block itself.
6843 */
6844 preserve_hdr = 1;
6845 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6846 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6847 val_end += delta;
6848 next += delta;
6849 hdr_end += delta;
6850 hdr_next += delta;
6851 cur_hdr->len += delta;
6852 http_msg_move_end(&txn->req, delta);
6853 prev = del_from;
6854 del_from = NULL;
6855 }
6856 continue;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6857 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6858
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6859 /* if there are spaces around the equal sign, we need to
6860 * strip them otherwise we'll get trouble for cookie captures,
6861 * or even for rewrites. Since this happens extremely rarely,
6862 * it does not hurt performance.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6863 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6864 if (unlikely(att_end != equal || val_beg > equal + 1)) {
6865 int stripped_before = 0;
6866 int stripped_after = 0;
6867
6868 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6869 stripped_before = buffer_replace2(req->buf, att_end, equal, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6870 equal += stripped_before;
6871 val_beg += stripped_before;
6872 }
6873
6874 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6875 stripped_after = buffer_replace2(req->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6876 val_beg += stripped_after;
6877 stripped_before += stripped_after;
6878 }
6879
6880 val_end += stripped_before;
6881 next += stripped_before;
6882 hdr_end += stripped_before;
6883 hdr_next += stripped_before;
6884 cur_hdr->len += stripped_before;
6885 http_msg_move_end(&txn->req, stripped_before);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6886 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6887 /* now everything is as on the diagram above */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6888
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6889 /* First, let's see if we want to capture this cookie. We check
6890 * that we don't already have a client side cookie, because we
6891 * can only capture one. Also as an optimisation, we ignore
6892 * cookies shorter than the declared name.
6893 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6894 if (sess->fe->capture_name != NULL && txn->cli_cookie == NULL &&
6895 (val_end - att_beg >= sess->fe->capture_namelen) &&
6896 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6897 int log_len = val_end - att_beg;
6898
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]6899 if ((txn->cli_cookie = pool_alloc(pool_head_capture)) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]6900 ha_alert("HTTP logging : out of memory.\n");
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6901 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6902 if (log_len > sess->fe->capture_len)
6903 log_len = sess->fe->capture_len;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6904 memcpy(txn->cli_cookie, att_beg, log_len);
6905 txn->cli_cookie[log_len] = 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6906 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6907 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6908
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6909 /* Persistence cookies in passive, rewrite or insert mode have the
6910 * following form :
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6911 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6912 * Cookie: NAME=SRV[|<lastseen>[|<firstseen>]]
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6913 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6914 * For cookies in prefix mode, the form is :
6915 *
6916 * Cookie: NAME=SRV~VALUE
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6917 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6918 if ((att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
6919 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
6920 struct server *srv = s->be->srv;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6921 char *delim;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6922
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6923 /* if we're in cookie prefix mode, we'll search the delimitor so that we
6924 * have the server ID between val_beg and delim, and the original cookie between
6925 * delim+1 and val_end. Otherwise, delim==val_end :
6926 *
6927 * Cookie: NAME=SRV; # in all but prefix modes
6928 * Cookie: NAME=SRV~OPAQUE ; # in prefix mode
6929 * | || || | |+-> next
6930 * | || || | +--> val_end
6931 * | || || +---------> delim
6932 * | || |+------------> val_beg
6933 * | || +-------------> att_end = equal
6934 * | |+-----------------> att_beg
6935 * | +------------------> prev
6936 * +-------------------------> hdr_beg
6937 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6938
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6939 if (s->be->ck_opts & PR_CK_PFX) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6940 for (delim = val_beg; delim < val_end; delim++)
6941 if (*delim == COOKIE_DELIM)
6942 break;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6943 } else {
6944 char *vbar1;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6945 delim = val_end;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6946 /* Now check if the cookie contains a date field, which would
6947 * appear after a vertical bar ('|') just after the server name
6948 * and before the delimiter.
6949 */
6950 vbar1 = memchr(val_beg, COOKIE_DELIM_DATE, val_end - val_beg);
6951 if (vbar1) {
6952 /* OK, so left of the bar is the server's cookie and
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6953 * right is the last seen date. It is a base64 encoded
6954 * 30-bit value representing the UNIX date since the
6955 * epoch in 4-second quantities.
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6956 */
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6957 int val;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6958 delim = vbar1++;
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6959 if (val_end - vbar1 >= 5) {
6960 val = b64tos30(vbar1);
6961 if (val > 0)
6962 txn->cookie_last_date = val << 2;
6963 }
6964 /* look for a second vertical bar */
6965 vbar1 = memchr(vbar1, COOKIE_DELIM_DATE, val_end - vbar1);
6966 if (vbar1 && (val_end - vbar1 > 5)) {
6967 val = b64tos30(vbar1 + 1);
6968 if (val > 0)
6969 txn->cookie_first_date = val << 2;
6970 }
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6971 }
6972 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6973
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6974 /* if the cookie has an expiration date and the proxy wants to check
6975 * it, then we do that now. We first check if the cookie is too old,
6976 * then only if it has expired. We detect strict overflow because the
6977 * time resolution here is not great (4 seconds). Cookies with dates
6978 * in the future are ignored if their offset is beyond one day. This
6979 * allows an admin to fix timezone issues without expiring everyone
6980 * and at the same time avoids keeping unwanted side effects for too
6981 * long.
6982 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6983 if (txn->cookie_first_date && s->be->cookie_maxlife &&
6984 (((signed)(date.tv_sec - txn->cookie_first_date) > (signed)s->be->cookie_maxlife) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6985 ((signed)(txn->cookie_first_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6986 txn->flags &= ~TX_CK_MASK;
6987 txn->flags |= TX_CK_OLD;
6988 delim = val_beg; // let's pretend we have not found the cookie
6989 txn->cookie_first_date = 0;
6990 txn->cookie_last_date = 0;
6991 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6992 else if (txn->cookie_last_date && s->be->cookie_maxidle &&
6993 (((signed)(date.tv_sec - txn->cookie_last_date) > (signed)s->be->cookie_maxidle) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6994 ((signed)(txn->cookie_last_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6995 txn->flags &= ~TX_CK_MASK;
6996 txn->flags |= TX_CK_EXPIRED;
6997 delim = val_beg; // let's pretend we have not found the cookie
6998 txn->cookie_first_date = 0;
6999 txn->cookie_last_date = 0;
7000 }
7001
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7002 /* Here, we'll look for the first running server which supports the cookie.
7003 * This allows to share a same cookie between several servers, for example
7004 * to dedicate backup servers to specific servers only.
7005 * However, to prevent clients from sticking to cookie-less backup server
7006 * when they have incidentely learned an empty cookie, we simply ignore
7007 * empty cookies and mark them as invalid.
7008 * The same behaviour is applied when persistence must be ignored.
7009 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7010 if ((delim == val_beg) || (s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7011 srv = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7012
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7013 while (srv) {
7014 if (srv->cookie && (srv->cklen == delim - val_beg) &&
7015 !memcmp(val_beg, srv->cookie, delim - val_beg)) {
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]7016 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7017 (s->be->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7018 (s->flags & SF_FORCE_PRST)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7019 /* we found the server and we can use it */
7020 txn->flags &= ~TX_CK_MASK;
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]7021 txn->flags |= (srv->cur_state != SRV_ST_STOPPED) ? TX_CK_VALID : TX_CK_DOWN;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7022 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7023 s->target = &srv->obj_type;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7024 break;
7025 } else {
7026 /* we found a server, but it's down,
7027 * mark it as such and go on in case
7028 * another one is available.
7029 */
7030 txn->flags &= ~TX_CK_MASK;
7031 txn->flags |= TX_CK_DOWN;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7032 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7033 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7034 srv = srv->next;
7035 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7036
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7037 if (!srv && !(txn->flags & (TX_CK_DOWN|TX_CK_EXPIRED|TX_CK_OLD))) {
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7038 /* no server matched this cookie or we deliberately skipped it */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7039 txn->flags &= ~TX_CK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7040 if ((s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7041 txn->flags |= TX_CK_UNUSED;
7042 else
7043 txn->flags |= TX_CK_INVALID;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7044 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7045
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7046 /* depending on the cookie mode, we may have to either :
7047 * - delete the complete cookie if we're in insert+indirect mode, so that
7048 * the server never sees it ;
7049 * - remove the server id from the cookie value, and tag the cookie as an
7050 * application cookie so that it does not get accidentely removed later,
7051 * if we're in cookie prefix mode
7052 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7053 if ((s->be->ck_opts & PR_CK_PFX) && (delim != val_end)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7054 int delta; /* negative */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7055
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7056 delta = buffer_replace2(req->buf, val_beg, delim + 1, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7057 val_end += delta;
7058 next += delta;
7059 hdr_end += delta;
7060 hdr_next += delta;
7061 cur_hdr->len += delta;
7062 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7063
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7064 del_from = NULL;
7065 preserve_hdr = 1; /* we want to keep this cookie */
7066 }
7067 else if (del_from == NULL &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7068 (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]7069 del_from = prev;
7070 }
7071 } else {
7072 /* This is not our cookie, so we must preserve it. But if we already
7073 * scheduled another cookie for removal, we cannot remove the
7074 * complete header, but we can remove the previous block itself.
7075 */
7076 preserve_hdr = 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7077
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7078 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7079 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaub8105542010-11-24 18:31:28 +0100[diff] [blame]7080 if (att_beg >= del_from)
7081 att_beg += delta;
7082 if (att_end >= del_from)
7083 att_end += delta;
7084 val_beg += delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7085 val_end += delta;
7086 next += delta;
7087 hdr_end += delta;
7088 hdr_next += delta;
7089 cur_hdr->len += delta;
7090 http_msg_move_end(&txn->req, delta);
7091 prev = del_from;
7092 del_from = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7093 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7094 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7095
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7096 /* continue with next cookie on this header line */
7097 att_beg = next;
7098 } /* for each cookie */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7099
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7100 /* There are no more cookies on this line.
7101 * We may still have one (or several) marked for deletion at the
7102 * end of the line. We must do this now in two ways :
7103 * - if some cookies must be preserved, we only delete from the
7104 * mark to the end of line ;
7105 * - if nothing needs to be preserved, simply delete the whole header
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7106 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7107 if (del_from) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7108 int delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7109 if (preserve_hdr) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7110 delta = del_hdr_value(req->buf, &del_from, hdr_end);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7111 hdr_end = del_from;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7112 cur_hdr->len += delta;
7113 } else {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7114 delta = buffer_replace2(req->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7115
7116 /* FIXME: this should be a separate function */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7117 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7118 txn->hdr_idx.used--;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7119 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7120 cur_idx = old_idx;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7121 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7122 hdr_next += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7123 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7124 }
7125
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7126 /* check next header */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7127 old_idx = cur_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7128 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7129}
7130
7131
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7132/* Iterate the same filter through all response headers contained in <rtr>.
7133 * Returns 1 if this filter can be stopped upon return, otherwise 0.
7134 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7135int 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]7136{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7137 char *cur_ptr, *cur_end, *cur_next;
7138 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7139 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7140 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7141 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7142
7143 last_hdr = 0;
7144
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7145 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7146 old_idx = 0;
7147
7148 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7149 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7150 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7151 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7152 (exp->action == ACT_ALLOW ||
7153 exp->action == ACT_DENY))
7154 return 0;
7155
7156 cur_idx = txn->hdr_idx.v[old_idx].next;
7157 if (!cur_idx)
7158 break;
7159
7160 cur_hdr = &txn->hdr_idx.v[cur_idx];
7161 cur_ptr = cur_next;
7162 cur_end = cur_ptr + cur_hdr->len;
7163 cur_next = cur_end + cur_hdr->cr + 1;
7164
7165 /* Now we have one header between cur_ptr and cur_end,
7166 * and the next header starts at cur_next.
7167 */
7168
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7169 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]7170 switch (exp->action) {
7171 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7172 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7173 last_hdr = 1;
7174 break;
7175
7176 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7177 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7178 last_hdr = 1;
7179 break;
7180
7181 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7182 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7183 if (trash.len < 0)
7184 return -1;
7185
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7186 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7187 /* FIXME: if the user adds a newline in the replacement, the
7188 * index will not be recalculated for now, and the new line
7189 * will not be counted as a new header.
7190 */
7191
7192 cur_end += delta;
7193 cur_next += delta;
7194 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7195 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7196 break;
7197
7198 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7199 delta = buffer_replace2(rtr->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7200 cur_next += delta;
7201
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7202 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7203 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7204 txn->hdr_idx.used--;
7205 cur_hdr->len = 0;
7206 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7207 cur_idx = old_idx;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7208 break;
7209
7210 }
7211 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7212
7213 /* keep the link from this header to next one in case of later
7214 * removal of next header.
7215 */
7216 old_idx = cur_idx;
7217 }
7218 return 0;
7219}
7220
7221
7222/* Apply the filter to the status line in the response buffer <rtr>.
7223 * Returns 0 if nothing has been done, 1 if the filter has been applied,
7224 * or -1 if a replacement resulted in an invalid status line.
7225 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7226int 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]7227{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7228 char *cur_ptr, *cur_end;
7229 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7230 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7231 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7232
7233
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7234 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7235 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7236 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7237 (exp->action == ACT_ALLOW ||
7238 exp->action == ACT_DENY))
7239 return 0;
7240 else if (exp->action == ACT_REMOVE)
7241 return 0;
7242
7243 done = 0;
7244
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7245 cur_ptr = rtr->buf->p;
Willy Tarreau1ba0e5f2010-06-07 13:57:32 +0200[diff] [blame]7246 cur_end = cur_ptr + txn->rsp.sl.st.l;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7247
7248 /* Now we have the status line between cur_ptr and cur_end */
7249
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7250 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]7251 switch (exp->action) {
7252 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7253 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7254 done = 1;
7255 break;
7256
7257 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7258 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7259 done = 1;
7260 break;
7261
7262 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7263 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7264 if (trash.len < 0)
7265 return -1;
7266
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7267 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7268 /* FIXME: if the user adds a newline in the replacement, the
7269 * index will not be recalculated for now, and the new line
7270 * will not be counted as a new header.
7271 */
7272
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7273 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7274 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7275 cur_end = (char *)http_parse_stsline(&txn->rsp,
Willy Tarreau02785762007-04-03 14:45:44 +0200[diff] [blame]7276 HTTP_MSG_RPVER,
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7277 cur_ptr, cur_end + 1,
7278 NULL, NULL);
7279 if (unlikely(!cur_end))
7280 return -1;
7281
7282 /* we have a full respnse and we know that we have either a CR
7283 * or an LF at <ptr>.
7284 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7285 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]7286 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]7287 /* there is no point trying this regex on headers */
7288 return 1;
7289 }
7290 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7291 return done;
7292}
7293
7294
7295
7296/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7297 * 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]7298 * Returns 0 if everything is alright, or -1 in case a replacement lead to an
7299 * unparsable response.
7300 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7301int apply_filters_to_response(struct stream *s, struct channel *rtr, struct proxy *px)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7302{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7303 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7304 struct http_txn *txn = s->txn;
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7305 struct hdr_exp *exp;
7306
7307 for (exp = px->rsp_exp; exp; exp = exp->next) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7308 int ret;
7309
7310 /*
7311 * The interleaving of transformations and verdicts
7312 * makes it difficult to decide to continue or stop
7313 * the evaluation.
7314 */
7315
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7316 if (txn->flags & TX_SVDENY)
7317 break;
7318
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7319 if ((txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7320 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
7321 exp->action == ACT_PASS)) {
7322 exp = exp->next;
7323 continue;
7324 }
7325
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7326 /* if this filter had a condition, evaluate it now and skip to
7327 * next filter if the condition does not match.
7328 */
7329 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7330 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]7331 ret = acl_pass(ret);
7332 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
7333 ret = !ret;
7334 if (!ret)
7335 continue;
7336 }
7337
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7338 /* Apply the filter to the status line. */
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7339 ret = apply_filter_to_sts_line(s, rtr, exp);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7340 if (unlikely(ret < 0))
7341 return -1;
7342
7343 if (likely(ret == 0)) {
7344 /* The filter did not match the response, it can be
7345 * iterated through all headers.
7346 */
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7347 if (unlikely(apply_filter_to_resp_headers(s, rtr, exp) < 0))
7348 return -1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7349 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7350 }
7351 return 0;
7352}
7353
7354
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7355/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]7356 * Manage server-side cookies. It can impact performance by about 2% so it is
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7357 * desirable to call it only when needed. This function is also used when we
7358 * just need to know if there is a cookie (eg: for check-cache).
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7359 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7360void manage_server_side_cookies(struct stream *s, struct channel *res)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7361{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7362 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7363 struct session *sess = s->sess;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7364 struct server *srv;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7365 int is_cookie2;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7366 int cur_idx, old_idx, delta;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7367 char *hdr_beg, *hdr_end, *hdr_next;
7368 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7369
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7370 /* Iterate through the headers.
7371 * we start with the start line.
7372 */
7373 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7374 hdr_next = res->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7375
7376 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
7377 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7378 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7379
7380 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7381 hdr_beg = hdr_next;
7382 hdr_end = hdr_beg + cur_hdr->len;
7383 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7384
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7385 /* We have one full header between hdr_beg and hdr_end, and the
7386 * next header starts at hdr_next. We're only interested in
7387 * "Set-Cookie" and "Set-Cookie2" headers.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7388 */
7389
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7390 is_cookie2 = 0;
7391 prev = hdr_beg + 10;
7392 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie", 10);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7393 if (!val) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7394 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie2", 11);
7395 if (!val) {
7396 old_idx = cur_idx;
7397 continue;
7398 }
7399 is_cookie2 = 1;
7400 prev = hdr_beg + 11;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7401 }
7402
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7403 /* OK, right now we know we have a Set-Cookie* at hdr_beg, and
7404 * <prev> points to the colon.
7405 */
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7406 txn->flags |= TX_SCK_PRESENT;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7407
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7408 /* Maybe we only wanted to see if there was a Set-Cookie (eg:
7409 * check-cache is enabled) and we are not interested in checking
7410 * them. Warning, the cookie capture is declared in the frontend.
Willy Tarreaufd39dda2008-10-17 12:01:58 +0200[diff] [blame]7411 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]7412 if (s->be->cookie_name == NULL && sess->fe->capture_name == NULL)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7413 return;
7414
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7415 /* OK so now we know we have to process this response cookie.
7416 * The format of the Set-Cookie header is slightly different
7417 * from the format of the Cookie header in that it does not
7418 * support the comma as a cookie delimiter (thus the header
7419 * cannot be folded) because the Expires attribute described in
7420 * the original Netscape's spec may contain an unquoted date
7421 * with a comma inside. We have to live with this because
7422 * many browsers don't support Max-Age and some browsers don't
7423 * support quoted strings. However the Set-Cookie2 header is
7424 * clean.
7425 *
7426 * We have to keep multiple pointers in order to support cookie
7427 * removal at the beginning, middle or end of header without
7428 * corrupting the header (in case of set-cookie2). A special
7429 * pointer, <scav> points to the beginning of the set-cookie-av
7430 * fields after the first semi-colon. The <next> pointer points
7431 * either to the end of line (set-cookie) or next unquoted comma
7432 * (set-cookie2). All of these headers are valid :
7433 *
7434 * Set-Cookie: NAME1 = VALUE 1 ; Secure; Path="/"\r\n
7435 * Set-Cookie:NAME=VALUE; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7436 * Set-Cookie: NAME = VALUE ; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7437 * Set-Cookie2: NAME1 = VALUE 1 ; Max-Age=0, NAME2=VALUE2; Discard\r\n
7438 * | | | | | | | | | |
7439 * | | | | | | | | +-> next hdr_end <--+
7440 * | | | | | | | +------------> scav
7441 * | | | | | | +--------------> val_end
7442 * | | | | | +--------------------> val_beg
7443 * | | | | +----------------------> equal
7444 * | | | +------------------------> att_end
7445 * | | +----------------------------> att_beg
7446 * | +------------------------------> prev
7447 * +-----------------------------------------> hdr_beg
7448 */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7449
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7450 for (; prev < hdr_end; prev = next) {
7451 /* Iterate through all cookies on this line */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7452
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7453 /* find att_beg */
7454 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7455 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7456 att_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7457
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7458 /* find att_end : this is the first character after the last non
7459 * space before the equal. It may be equal to hdr_end.
7460 */
7461 equal = att_end = att_beg;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7462
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7463 while (equal < hdr_end) {
7464 if (*equal == '=' || *equal == ';' || (is_cookie2 && *equal == ','))
7465 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7466 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7467 continue;
7468 att_end = equal;
7469 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7470
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7471 /* here, <equal> points to '=', a delimitor or the end. <att_end>
7472 * is between <att_beg> and <equal>, both may be identical.
7473 */
7474
7475 /* look for end of cookie if there is an equal sign */
7476 if (equal < hdr_end && *equal == '=') {
7477 /* look for the beginning of the value */
7478 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7479 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7480 val_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7481
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7482 /* find the end of the value, respecting quotes */
7483 next = find_cookie_value_end(val_beg, hdr_end);
7484
7485 /* make val_end point to the first white space or delimitor after the value */
7486 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7487 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7488 val_end--;
7489 } else {
7490 /* <equal> points to next comma, semi-colon or EOL */
7491 val_beg = val_end = next = equal;
7492 }
7493
7494 if (next < hdr_end) {
7495 /* Set-Cookie2 supports multiple cookies, and <next> points to
7496 * a colon or semi-colon before the end. So skip all attr-value
7497 * pairs and look for the next comma. For Set-Cookie, since
7498 * commas are permitted in values, skip to the end.
7499 */
7500 if (is_cookie2)
7501 next = find_hdr_value_end(next, hdr_end);
7502 else
7503 next = hdr_end;
7504 }
7505
7506 /* Now everything is as on the diagram above */
7507
7508 /* Ignore cookies with no equal sign */
7509 if (equal == val_end)
7510 continue;
7511
7512 /* If there are spaces around the equal sign, we need to
7513 * strip them otherwise we'll get trouble for cookie captures,
7514 * or even for rewrites. Since this happens extremely rarely,
7515 * it does not hurt performance.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7516 */
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7517 if (unlikely(att_end != equal || val_beg > equal + 1)) {
7518 int stripped_before = 0;
7519 int stripped_after = 0;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7520
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7521 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7522 stripped_before = buffer_replace2(res->buf, att_end, equal, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7523 equal += stripped_before;
7524 val_beg += stripped_before;
7525 }
7526
7527 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7528 stripped_after = buffer_replace2(res->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7529 val_beg += stripped_after;
7530 stripped_before += stripped_after;
7531 }
7532
7533 val_end += stripped_before;
7534 next += stripped_before;
7535 hdr_end += stripped_before;
7536 hdr_next += stripped_before;
7537 cur_hdr->len += stripped_before;
Willy Tarreau1fc1f452011-04-07 22:35:37 +0200[diff] [blame]7538 http_msg_move_end(&txn->rsp, stripped_before);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7539 }
7540
7541 /* First, let's see if we want to capture this cookie. We check
7542 * that we don't already have a server side cookie, because we
7543 * can only capture one. Also as an optimisation, we ignore
7544 * cookies shorter than the declared name.
7545 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7546 if (sess->fe->capture_name != NULL &&
Willy Tarreau3bac9ff2007-03-18 17:31:28 +0100[diff] [blame]7547 txn->srv_cookie == NULL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7548 (val_end - att_beg >= sess->fe->capture_namelen) &&
7549 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7550 int log_len = val_end - att_beg;
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]7551 if ((txn->srv_cookie = pool_alloc(pool_head_capture)) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]7552 ha_alert("HTTP logging : out of memory.\n");
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7553 }
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7554 else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7555 if (log_len > sess->fe->capture_len)
7556 log_len = sess->fe->capture_len;
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7557 memcpy(txn->srv_cookie, att_beg, log_len);
7558 txn->srv_cookie[log_len] = 0;
7559 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7560 }
7561
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7562 srv = objt_server(s->target);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7563 /* now check if we need to process it for persistence */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7564 if (!(s->flags & SF_IGNORE_PRST) &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7565 (att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
7566 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7567 /* assume passive cookie by default */
7568 txn->flags &= ~TX_SCK_MASK;
7569 txn->flags |= TX_SCK_FOUND;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7570
7571 /* If the cookie is in insert mode on a known server, we'll delete
7572 * this occurrence because we'll insert another one later.
7573 * 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]7574 * a direct access.
7575 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7576 if (s->be->ck_opts & PR_CK_PSV) {
Willy Tarreauba4c5be2010-10-23 12:46:42 +0200[diff] [blame]7577 /* The "preserve" flag was set, we don't want to touch the
7578 * server's cookie.
7579 */
7580 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7581 else if ((srv && (s->be->ck_opts & PR_CK_INS)) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7582 ((s->flags & SF_DIRECT) && (s->be->ck_opts & PR_CK_IND))) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7583 /* this cookie must be deleted */
7584 if (*prev == ':' && next == hdr_end) {
7585 /* whole header */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7586 delta = buffer_replace2(res->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7587 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7588 txn->hdr_idx.used--;
7589 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7590 cur_idx = old_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7591 hdr_next += delta;
7592 http_msg_move_end(&txn->rsp, delta);
7593 /* note: while both invalid now, <next> and <hdr_end>
7594 * are still equal, so the for() will stop as expected.
7595 */
7596 } else {
7597 /* just remove the value */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7598 int delta = del_hdr_value(res->buf, &prev, next);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7599 next = prev;
7600 hdr_end += delta;
7601 hdr_next += delta;
7602 cur_hdr->len += delta;
7603 http_msg_move_end(&txn->rsp, delta);
7604 }
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7605 txn->flags &= ~TX_SCK_MASK;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7606 txn->flags |= TX_SCK_DELETED;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7607 /* and go on with next cookie */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7608 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7609 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_RW)) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7610 /* replace bytes val_beg->val_end with the cookie name associated
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7611 * with this server since we know it.
7612 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7613 delta = buffer_replace2(res->buf, val_beg, val_end, srv->cookie, srv->cklen);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7614 next += delta;
7615 hdr_end += delta;
7616 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7617 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7618 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7619
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7620 txn->flags &= ~TX_SCK_MASK;
7621 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7622 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7623 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_PFX)) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7624 /* insert the cookie name associated with this server
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7625 * before existing cookie, and insert a delimiter between them..
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7626 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7627 delta = buffer_replace2(res->buf, val_beg, val_beg, srv->cookie, srv->cklen + 1);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7628 next += delta;
7629 hdr_end += delta;
7630 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7631 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7632 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7633
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7634 val_beg[srv->cklen] = COOKIE_DELIM;
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7635 txn->flags &= ~TX_SCK_MASK;
7636 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7637 }
7638 }
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7639 /* that's done for this cookie, check the next one on the same
7640 * line when next != hdr_end (only if is_cookie2).
7641 */
7642 }
7643 /* check next header */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7644 old_idx = cur_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7645 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7646}
7647
7648
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7649/*
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7650 * Check if response is cacheable or not. Updates s->flags.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7651 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7652void check_response_for_cacheability(struct stream *s, struct channel *rtr)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7653{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7654 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7655 char *p1, *p2;
7656
7657 char *cur_ptr, *cur_end, *cur_next;
7658 int cur_idx;
7659
Willy Tarreau5df51872007-11-25 16:20:08 +0100[diff] [blame]7660 if (!(txn->flags & TX_CACHEABLE))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7661 return;
7662
7663 /* Iterate through the headers.
7664 * we start with the start line.
7665 */
7666 cur_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7667 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7668
7669 while ((cur_idx = txn->hdr_idx.v[cur_idx].next)) {
7670 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7671 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7672
7673 cur_hdr = &txn->hdr_idx.v[cur_idx];
7674 cur_ptr = cur_next;
7675 cur_end = cur_ptr + cur_hdr->len;
7676 cur_next = cur_end + cur_hdr->cr + 1;
7677
7678 /* We have one full header between cur_ptr and cur_end, and the
7679 * next header starts at cur_next. We're only interested in
7680 * "Cookie:" headers.
7681 */
7682
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7683 val = http_header_match2(cur_ptr, cur_end, "Pragma", 6);
7684 if (val) {
7685 if ((cur_end - (cur_ptr + val) >= 8) &&
7686 strncasecmp(cur_ptr + val, "no-cache", 8) == 0) {
7687 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7688 return;
7689 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7690 }
7691
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7692 val = http_header_match2(cur_ptr, cur_end, "Cache-control", 13);
7693 if (!val)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7694 continue;
7695
7696 /* OK, right now we know we have a cache-control header at cur_ptr */
7697
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7698 p1 = cur_ptr + val; /* first non-space char after 'cache-control:' */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7699
7700 if (p1 >= cur_end) /* no more info */
7701 continue;
7702
7703 /* p1 is at the beginning of the value */
7704 p2 = p1;
7705
Willy Tarreau8f8e6452007-06-17 21:51:38 +0200[diff] [blame]7706 while (p2 < cur_end && *p2 != '=' && *p2 != ',' && !isspace((unsigned char)*p2))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7707 p2++;
7708
7709 /* we have a complete value between p1 and p2 */
7710 if (p2 < cur_end && *p2 == '=') {
7711 /* we have something of the form no-cache="set-cookie" */
7712 if ((cur_end - p1 >= 21) &&
7713 strncasecmp(p1, "no-cache=\"set-cookie", 20) == 0
7714 && (p1[20] == '"' || p1[20] == ','))
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7715 txn->flags &= ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7716 continue;
7717 }
7718
7719 /* OK, so we know that either p2 points to the end of string or to a comma */
7720 if (((p2 - p1 == 7) && strncasecmp(p1, "private", 7) == 0) ||
Willy Tarreau5b15f902013-07-04 12:46:56 +0200[diff] [blame]7721 ((p2 - p1 == 8) && strncasecmp(p1, "no-cache", 8) == 0) ||
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7722 ((p2 - p1 == 8) && strncasecmp(p1, "no-store", 8) == 0) ||
7723 ((p2 - p1 == 9) && strncasecmp(p1, "max-age=0", 9) == 0) ||
7724 ((p2 - p1 == 10) && strncasecmp(p1, "s-maxage=0", 10) == 0)) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7725 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7726 return;
7727 }
7728
7729 if ((p2 - p1 == 6) && strncasecmp(p1, "public", 6) == 0) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7730 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7731 continue;
7732 }
7733 }
7734}
7735
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7736
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7737/*
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7738 * 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]7739 * for the current backend.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7740 *
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7741 * 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]7742 * uri_auth field is valid.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7743 *
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7744 * Returns 1 if stats should be provided, otherwise 0.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7745 */
Willy Tarreau295a8372011-03-10 11:25:07 +0100[diff] [blame]7746int stats_check_uri(struct stream_interface *si, struct http_txn *txn, struct proxy *backend)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7747{
7748 struct uri_auth *uri_auth = backend->uri_auth;
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]7749 struct http_msg *msg = &txn->req;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7750 const char *uri = msg->chn->buf->p+ msg->sl.rq.u;
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7751
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7752 if (!uri_auth)
7753 return 0;
7754
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7755 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]7756 return 0;
7757
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7758 /* check URI size */
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]7759 if (uri_auth->uri_len > msg->sl.rq.u_l)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7760 return 0;
7761
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]7762 if (memcmp(uri, uri_auth->uri_prefix, uri_auth->uri_len) != 0)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7763 return 0;
7764
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7765 return 1;
7766}
7767
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7768/*
7769 * Capture a bad request or response and archive it in the proxy's structure.
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7770 * By default it tries to report the error position as msg->err_pos. However if
7771 * this one is not set, it will then report msg->next, which is the last known
7772 * parsing point. The function is able to deal with wrapping buffers. It always
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7773 * displays buffers as a contiguous area starting at buf->p.
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7774 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]7775void http_capture_bad_message(struct proxy *proxy, struct error_snapshot *es, struct stream *s,
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]7776 struct http_msg *msg,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]7777 enum h1_state state, struct proxy *other_end)
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7778{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7779 struct session *sess = strm_sess(s);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7780 struct channel *chn = msg->chn;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7781 int len1, len2;
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]7782
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]7783 HA_SPIN_LOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]7784 es->len = MIN(chn->buf->i, global.tune.bufsize);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7785 len1 = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7786 len1 = MIN(len1, es->len);
7787 len2 = es->len - len1; /* remaining data if buffer wraps */
7788
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]7789 if (!es->buf)
7790 es->buf = malloc(global.tune.bufsize);
7791
7792 if (es->buf) {
7793 memcpy(es->buf, chn->buf->p, len1);
7794 if (len2)
7795 memcpy(es->buf + len1, chn->buf->data, len2);
7796 }
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7797
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7798 if (msg->err_pos >= 0)
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7799 es->pos = msg->err_pos;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7800 else
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7801 es->pos = msg->next;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7802
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7803 es->when = date; // user-visible date
7804 es->sid = s->uniq_id;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]7805 es->srv = objt_server(s->target);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7806 es->oe = other_end;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7807 if (objt_conn(sess->origin))
7808 es->src = __objt_conn(sess->origin)->addr.from;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]7809 else
7810 memset(&es->src, 0, sizeof(es->src));
7811
Willy Tarreau078272e2010-12-12 12:46:33 +0100[diff] [blame]7812 es->state = state;
Willy Tarreau10479e42010-12-12 14:00:34 +0100[diff] [blame]7813 es->ev_id = error_snapshot_id++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7814 es->b_flags = chn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7815 es->s_flags = s->flags;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7816 es->t_flags = s->txn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7817 es->m_flags = msg->flags;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7818 es->b_out = chn->buf->o;
7819 es->b_wrap = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7820 es->b_tot = chn->total;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7821 es->m_clen = msg->chunk_len;
7822 es->m_blen = msg->body_len;
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100[diff] [blame]7823 HA_SPIN_UNLOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7824}
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7825
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7826/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
7827 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
7828 * performed over the whole headers. Otherwise it must contain a valid header
7829 * context, initialised with ctx->idx=0 for the first lookup in a series. If
7830 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
7831 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
7832 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7833 * -1. The value fetch stops at commas, so this function is suited for use with
7834 * list headers.
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7835 * The return value is 0 if nothing was found, or non-zero otherwise.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7836 */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]7837unsigned int http_get_hdr(const struct http_msg *msg, const char *hname, int hlen,
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7838 struct hdr_idx *idx, int occ,
7839 struct hdr_ctx *ctx, char **vptr, int *vlen)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7840{
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7841 struct hdr_ctx local_ctx;
7842 char *ptr_hist[MAX_HDR_HISTORY];
7843 int len_hist[MAX_HDR_HISTORY];
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7844 unsigned int hist_ptr;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7845 int found;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7846
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7847 if (!ctx) {
7848 local_ctx.idx = 0;
7849 ctx = &local_ctx;
7850 }
7851
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7852 if (occ >= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7853 /* search from the beginning */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7854 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7855 occ--;
7856 if (occ <= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7857 *vptr = ctx->line + ctx->val;
7858 *vlen = ctx->vlen;
7859 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7860 }
7861 }
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7862 return 0;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7863 }
7864
7865 /* negative occurrence, we scan all the list then walk back */
7866 if (-occ > MAX_HDR_HISTORY)
7867 return 0;
7868
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7869 found = hist_ptr = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7870 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7871 ptr_hist[hist_ptr] = ctx->line + ctx->val;
7872 len_hist[hist_ptr] = ctx->vlen;
7873 if (++hist_ptr >= MAX_HDR_HISTORY)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7874 hist_ptr = 0;
7875 found++;
7876 }
7877 if (-occ > found)
7878 return 0;
7879 /* 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]7880 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
7881 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
7882 * to remain in the 0..9 range.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7883 */
Willy Tarreau67dad272013-06-12 22:27:44 +0200[diff] [blame]7884 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7885 if (hist_ptr >= MAX_HDR_HISTORY)
7886 hist_ptr -= MAX_HDR_HISTORY;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7887 *vptr = ptr_hist[hist_ptr];
7888 *vlen = len_hist[hist_ptr];
7889 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7890}
7891
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7892/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
7893 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
7894 * performed over the whole headers. Otherwise it must contain a valid header
7895 * context, initialised with ctx->idx=0 for the first lookup in a series. If
7896 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
7897 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
7898 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
7899 * -1. This function differs from http_get_hdr() in that it only returns full
7900 * line header values and does not stop at commas.
7901 * The return value is 0 if nothing was found, or non-zero otherwise.
7902 */
7903unsigned int http_get_fhdr(const struct http_msg *msg, const char *hname, int hlen,
7904 struct hdr_idx *idx, int occ,
7905 struct hdr_ctx *ctx, char **vptr, int *vlen)
7906{
7907 struct hdr_ctx local_ctx;
7908 char *ptr_hist[MAX_HDR_HISTORY];
7909 int len_hist[MAX_HDR_HISTORY];
7910 unsigned int hist_ptr;
7911 int found;
7912
7913 if (!ctx) {
7914 local_ctx.idx = 0;
7915 ctx = &local_ctx;
7916 }
7917
7918 if (occ >= 0) {
7919 /* search from the beginning */
7920 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
7921 occ--;
7922 if (occ <= 0) {
7923 *vptr = ctx->line + ctx->val;
7924 *vlen = ctx->vlen;
7925 return 1;
7926 }
7927 }
7928 return 0;
7929 }
7930
7931 /* negative occurrence, we scan all the list then walk back */
7932 if (-occ > MAX_HDR_HISTORY)
7933 return 0;
7934
7935 found = hist_ptr = 0;
7936 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
7937 ptr_hist[hist_ptr] = ctx->line + ctx->val;
7938 len_hist[hist_ptr] = ctx->vlen;
7939 if (++hist_ptr >= MAX_HDR_HISTORY)
7940 hist_ptr = 0;
7941 found++;
7942 }
7943 if (-occ > found)
7944 return 0;
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]7945
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7946 /* 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]7947 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
7948 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
7949 * to remain in the 0..9 range.
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7950 */
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]7951 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7952 if (hist_ptr >= MAX_HDR_HISTORY)
7953 hist_ptr -= MAX_HDR_HISTORY;
7954 *vptr = ptr_hist[hist_ptr];
7955 *vlen = len_hist[hist_ptr];
7956 return 1;
7957}
7958
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]7959/*
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]7960 * Print a debug line with a header. Always stop at the first CR or LF char,
7961 * so it is safe to pass it a full buffer if needed. If <err> is not NULL, an
7962 * arrow is printed after the line which contains the pointer.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7963 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7964void debug_hdr(const char *dir, struct stream *s, const char *start, const char *end)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7965{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7966 struct session *sess = strm_sess(s);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7967 int max;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7968
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7969 chunk_printf(&trash, "%08x:%s.%s[%04x:%04x]: ", s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]7970 dir,
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]7971 objt_conn(sess->origin) ? (unsigned short)objt_conn(sess->origin)->handle.fd : -1,
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]7972 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]7973
7974 for (max = 0; start + max < end; max++)
7975 if (start[max] == '\r' || start[max] == '\n')
7976 break;
7977
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7978 UBOUND(max, trash.size - trash.len - 3);
7979 trash.len += strlcpy2(trash.str + trash.len, start, max + 1);
7980 trash.str[trash.len++] = '\n';
Willy Tarreau89efaed2013-12-13 15:14:55 +0100[diff] [blame]7981 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7982}
7983
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7984
7985/* Allocate a new HTTP transaction for stream <s> unless there is one already.
7986 * The hdr_idx is allocated as well. In case of allocation failure, everything
7987 * allocated is freed and NULL is returned. Otherwise the new transaction is
7988 * assigned to the stream and returned.
7989 */
7990struct http_txn *http_alloc_txn(struct stream *s)
7991{
7992 struct http_txn *txn = s->txn;
7993
7994 if (txn)
7995 return txn;
7996
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]7997 txn = pool_alloc(pool_head_http_txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7998 if (!txn)
7999 return txn;
8000
8001 txn->hdr_idx.size = global.tune.max_http_hdr;
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8002 txn->hdr_idx.v = pool_alloc(pool_head_hdr_idx);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8003 if (!txn->hdr_idx.v) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8004 pool_free(pool_head_http_txn, txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8005 return NULL;
8006 }
8007
8008 s->txn = txn;
8009 return txn;
8010}
8011
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8012void http_txn_reset_req(struct http_txn *txn)
8013{
8014 txn->req.flags = 0;
8015 txn->req.sol = txn->req.eol = txn->req.eoh = 0; /* relative to the buffer */
8016 txn->req.next = 0;
8017 txn->req.chunk_len = 0LL;
8018 txn->req.body_len = 0LL;
8019 txn->req.msg_state = HTTP_MSG_RQBEFORE; /* at the very beginning of the request */
8020}
8021
8022void http_txn_reset_res(struct http_txn *txn)
8023{
8024 txn->rsp.flags = 0;
8025 txn->rsp.sol = txn->rsp.eol = txn->rsp.eoh = 0; /* relative to the buffer */
8026 txn->rsp.next = 0;
8027 txn->rsp.chunk_len = 0LL;
8028 txn->rsp.body_len = 0LL;
8029 txn->rsp.msg_state = HTTP_MSG_RPBEFORE; /* at the very beginning of the response */
8030}
8031
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8032/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8033 * Initialize a new HTTP transaction for stream <s>. It is assumed that all
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8034 * the required fields are properly allocated and that we only need to (re)init
8035 * them. This should be used before processing any new request.
8036 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8037void http_init_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8038{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8039 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8040 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8041
8042 txn->flags = 0;
8043 txn->status = -1;
8044
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]8045 txn->cookie_first_date = 0;
8046 txn->cookie_last_date = 0;
8047
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8048 txn->srv_cookie = NULL;
8049 txn->cli_cookie = NULL;
8050 txn->uri = NULL;
8051
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8052 http_txn_reset_req(txn);
8053 http_txn_reset_res(txn);
8054
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8055 txn->req.chn = &s->req;
8056 txn->rsp.chn = &s->res;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8057
8058 txn->auth.method = HTTP_AUTH_UNKNOWN;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8059
8060 txn->req.err_pos = txn->rsp.err_pos = -2; /* block buggy requests/responses */
8061 if (fe->options2 & PR_O2_REQBUG_OK)
8062 txn->req.err_pos = -1; /* let buggy requests pass */
8063
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8064 if (txn->hdr_idx.v)
8065 hdr_idx_init(&txn->hdr_idx);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]8066
8067 vars_init(&s->vars_txn, SCOPE_TXN);
8068 vars_init(&s->vars_reqres, SCOPE_REQ);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8069}
8070
8071/* to be used at the end of a transaction */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8072void http_end_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8073{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8074 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8075 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8076
8077 /* these ones will have been dynamically allocated */
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8078 pool_free(pool_head_requri, txn->uri);
8079 pool_free(pool_head_capture, txn->cli_cookie);
8080 pool_free(pool_head_capture, txn->srv_cookie);
8081 pool_free(pool_head_uniqueid, s->unique_id);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8082
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]8083 s->unique_id = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8084 txn->uri = NULL;
8085 txn->srv_cookie = NULL;
8086 txn->cli_cookie = NULL;
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8087
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8088 if (s->req_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8089 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8090 for (h = fe->req_cap; h; h = h->next)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8091 pool_free(h->pool, s->req_cap[h->index]);
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8092 memset(s->req_cap, 0, fe->nb_req_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8093 }
8094
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8095 if (s->res_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8096 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8097 for (h = fe->rsp_cap; h; h = h->next)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]8098 pool_free(h->pool, s->res_cap[h->index]);
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8099 memset(s->res_cap, 0, fe->nb_rsp_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8100 }
8101
Willy Tarreau6204cd92016-03-10 16:33:04 +0100[diff] [blame]8102 vars_prune(&s->vars_txn, s->sess, s);
8103 vars_prune(&s->vars_reqres, s->sess, s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8104}
8105
8106/* to be used at the end of a transaction to prepare a new one */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8107void http_reset_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8108{
8109 http_end_txn(s);
8110 http_init_txn(s);
8111
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]8112 /* reinitialise the current rule list pointer to NULL. We are sure that
8113 * any rulelist match the NULL pointer.
8114 */
8115 s->current_rule_list = NULL;
8116
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8117 s->be = strm_fe(s);
8118 s->logs.logwait = strm_fe(s)->to_log;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]8119 s->logs.level = 0;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8120 stream_del_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]8121 s->target = NULL;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8122 /* re-init store persistence */
8123 s->store_count = 0;
Willy Tarreau1f0da242014-01-25 11:01:50 +0100[diff] [blame]8124 s->uniq_id = global.req_count++;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8125
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8126 s->pend_pos = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8127
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8128 s->req.flags |= CF_READ_DONTWAIT; /* one read is usually enough */
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8129
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8130 /* We must trim any excess data from the response buffer, because we
8131 * may have blocked an invalid response from a server that we don't
8132 * want to accidentely forward once we disable the analysers, nor do
8133 * we want those data to come along with next response. A typical
8134 * example of such data would be from a buggy server responding to
8135 * a HEAD with some data, or sending more than the advertised
8136 * content-length.
8137 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8138 if (unlikely(s->res.buf->i))
8139 s->res.buf->i = 0;
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8140
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]8141 /* Now we can realign the response buffer */
8142 buffer_realign(s->res.buf);
8143
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8144 s->req.rto = strm_fe(s)->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8145 s->req.wto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8146
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8147 s->res.rto = TICK_ETERNITY;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8148 s->res.wto = strm_fe(s)->timeout.client;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8149
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8150 s->req.rex = TICK_ETERNITY;
8151 s->req.wex = TICK_ETERNITY;
8152 s->req.analyse_exp = TICK_ETERNITY;
8153 s->res.rex = TICK_ETERNITY;
8154 s->res.wex = TICK_ETERNITY;
8155 s->res.analyse_exp = TICK_ETERNITY;
Hongbo Longe39683c2017-03-10 18:41:51 +0100[diff] [blame]8156 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8157}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8158
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8159void free_http_res_rules(struct list *r)
8160{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8161 struct act_rule *tr, *pr;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8162
8163 list_for_each_entry_safe(pr, tr, r, list) {
8164 LIST_DEL(&pr->list);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8165 regex_free(&pr->arg.hdr_add.re);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8166 free(pr);
8167 }
8168}
8169
8170void free_http_req_rules(struct list *r)
8171{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8172 struct act_rule *tr, *pr;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8173
8174 list_for_each_entry_safe(pr, tr, r, list) {
8175 LIST_DEL(&pr->list);
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8176 if (pr->action == ACT_HTTP_REQ_AUTH)
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8177 free(pr->arg.auth.realm);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8178
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8179 regex_free(&pr->arg.hdr_add.re);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8180 free(pr);
8181 }
8182}
8183
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8184/* parse an "http-request" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8185struct 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]8186{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8187 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8188 struct action_kw *custom = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8189 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8190 char *error;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8191
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]8192 rule = calloc(1, sizeof(*rule));
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8193 if (!rule) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8194 ha_alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8195 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8196 }
8197
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8198 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8199 rule->action = ACT_ACTION_ALLOW;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8200 cur_arg = 1;
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8201 } else if (!strcmp(args[0], "deny") || !strcmp(args[0], "block") || !strcmp(args[0], "tarpit")) {
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8202 int code;
8203 int hc;
8204
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8205 if (!strcmp(args[0], "tarpit")) {
8206 rule->action = ACT_HTTP_REQ_TARPIT;
8207 rule->deny_status = HTTP_ERR_500;
8208 }
8209 else {
8210 rule->action = ACT_ACTION_DENY;
8211 rule->deny_status = HTTP_ERR_403;
8212 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8213 cur_arg = 1;
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8214 if (strcmp(args[cur_arg], "deny_status") == 0) {
8215 cur_arg++;
8216 if (!args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8217 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing status code.\n",
8218 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8219 goto out_err;
8220 }
8221
8222 code = atol(args[cur_arg]);
8223 cur_arg++;
8224 for (hc = 0; hc < HTTP_ERR_SIZE; hc++) {
8225 if (http_err_codes[hc] == code) {
8226 rule->deny_status = hc;
8227 break;
8228 }
8229 }
8230
8231 if (hc >= HTTP_ERR_SIZE) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8232 ha_warning("parsing [%s:%d] : status code %d not handled, using default code %d.\n",
8233 file, linenum, code, http_err_codes[rule->deny_status]);
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8234 }
8235 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8236 } else if (!strcmp(args[0], "auth")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8237 rule->action = ACT_HTTP_REQ_AUTH;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8238 cur_arg = 1;
8239
8240 while(*args[cur_arg]) {
8241 if (!strcmp(args[cur_arg], "realm")) {
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8242 rule->arg.auth.realm = strdup(args[cur_arg + 1]);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8243 cur_arg+=2;
8244 continue;
8245 } else
8246 break;
8247 }
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8248 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8249 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8250 cur_arg = 1;
8251
8252 if (!*args[cur_arg] ||
8253 (*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]8254 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer value).\n",
8255 file, linenum, args[0]);
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8256 goto out_err;
8257 }
8258 rule->arg.nice = atoi(args[cur_arg]);
8259 if (rule->arg.nice < -1024)
8260 rule->arg.nice = -1024;
8261 else if (rule->arg.nice > 1024)
8262 rule->arg.nice = 1024;
8263 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8264 } else if (!strcmp(args[0], "set-tos")) {
8265#ifdef IP_TOS
8266 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8267 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8268 cur_arg = 1;
8269
8270 if (!*args[cur_arg] ||
8271 (*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]8272 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8273 file, linenum, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8274 goto out_err;
8275 }
8276
8277 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8278 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8279 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8280 file, linenum, err, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8281 goto out_err;
8282 }
8283 cur_arg++;
8284#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8285 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]8286 goto out_err;
8287#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8288 } else if (!strcmp(args[0], "set-mark")) {
8289#ifdef SO_MARK
8290 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8291 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8292 cur_arg = 1;
8293
8294 if (!*args[cur_arg] ||
8295 (*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]8296 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8297 file, linenum, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8298 goto out_err;
8299 }
8300
8301 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8302 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8303 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8304 file, linenum, err, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8305 goto out_err;
8306 }
8307 cur_arg++;
8308 global.last_checks |= LSTCHK_NETADM;
8309#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8310 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]8311 goto out_err;
8312#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8313 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8314 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8315 cur_arg = 1;
8316
8317 if (!*args[cur_arg] ||
8318 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8319 bad_log_level:
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8320 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (log level name or 'silent').\n",
8321 file, linenum, args[0]);
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8322 goto out_err;
8323 }
8324 if (strcmp(args[cur_arg], "silent") == 0)
8325 rule->arg.loglevel = -1;
8326 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
8327 goto bad_log_level;
8328 cur_arg++;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8329 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8330 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8331 cur_arg = 1;
8332
Willy Tarreau8d1c5162013-04-03 14:13:58 +0200[diff] [blame]8333 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8334 (*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]8335 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8336 file, linenum, args[0]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8337 goto out_err;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8338 }
8339
8340 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8341 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8342 LIST_INIT(&rule->arg.hdr_add.fmt);
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]8343
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8344 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8345 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8346 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]8347 (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]8348 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8349 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8350 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8351 goto out_err;
8352 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8353 free(proxy->conf.lfs_file);
8354 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8355 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8356 cur_arg += 2;
Willy Tarreaub8543922014-06-17 18:58:26 +0200[diff] [blame]8357 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8358 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8359 cur_arg = 1;
8360
8361 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann92df3702014-06-24 11:10:00 +0200[diff] [blame]8362 (*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]8363 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 3 arguments.\n",
8364 file, linenum, args[0]);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8365 goto out_err;
8366 }
8367
8368 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8369 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8370 LIST_INIT(&rule->arg.hdr_add.fmt);
8371
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8372 error = NULL;
8373 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]8374 ha_alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8375 args[cur_arg + 1], error);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8376 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8377 goto out_err;
8378 }
8379
8380 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8381 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8382 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]8383 (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]8384 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8385 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8386 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8387 goto out_err;
8388 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8389
8390 free(proxy->conf.lfs_file);
8391 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8392 proxy->conf.lfs_line = proxy->conf.args.line;
8393 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8394 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8395 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8396 cur_arg = 1;
8397
8398 if (!*args[cur_arg] ||
8399 (*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]8400 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8401 file, linenum, args[0]);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8402 goto out_err;
8403 }
8404
8405 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8406 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8407
8408 proxy->conf.args.ctx = ARGC_HRQ;
8409 free(proxy->conf.lfs_file);
8410 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8411 proxy->conf.lfs_line = proxy->conf.args.line;
8412 cur_arg += 1;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8413 } else if (strncmp(args[0], "track-sc", 8) == 0 &&
8414 args[0][9] == '\0' && args[0][8] >= '0' &&
Willy Tarreaue1cfc1f2014-10-17 11:53:05 +0200[diff] [blame]8415 args[0][8] < '0' + MAX_SESS_STKCTR) { /* track-sc 0..9 */
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8416 struct sample_expr *expr;
8417 unsigned int where;
8418 char *err = NULL;
8419
8420 cur_arg = 1;
8421 proxy->conf.args.ctx = ARGC_TRK;
8422
8423 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
8424 if (!expr) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8425 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8426 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8427 free(err);
8428 goto out_err;
8429 }
8430
8431 where = 0;
8432 if (proxy->cap & PR_CAP_FE)
8433 where |= SMP_VAL_FE_HRQ_HDR;
8434 if (proxy->cap & PR_CAP_BE)
8435 where |= SMP_VAL_BE_HRQ_HDR;
8436
8437 if (!(expr->fetch->val & where)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8438 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule :"
8439 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
8440 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
8441 args[cur_arg-1], sample_src_names(expr->fetch->use));
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8442 free(expr);
8443 goto out_err;
8444 }
8445
8446 if (strcmp(args[cur_arg], "table") == 0) {
8447 cur_arg++;
8448 if (!args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8449 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing table name.\n",
8450 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8451 free(expr);
8452 goto out_err;
8453 }
8454 /* we copy the table name for now, it will be resolved later */
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8455 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8456 cur_arg++;
8457 }
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8458 rule->arg.trk_ctr.expr = expr;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8459 rule->action = ACT_ACTION_TRK_SC0 + args[0][8] - '0';
Christopher Faulet78880fb2017-09-18 14:43:55 +0200[diff] [blame]8460 rule->check_ptr = check_trk_action;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8461 } else if (strcmp(args[0], "redirect") == 0) {
8462 struct redirect_rule *redir;
Willy Tarreau6d4890c2013-11-18 18:04:25 +0100[diff] [blame]8463 char *errmsg = NULL;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8464
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]8465 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]8466 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8467 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8468 goto out_err;
8469 }
8470
8471 /* this redirect rule might already contain a parsed condition which
8472 * we'll pass to the http-request rule.
8473 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8474 rule->action = ACT_HTTP_REDIR;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8475 rule->arg.redir = redir;
8476 rule->cond = redir->cond;
8477 redir->cond = NULL;
8478 cur_arg = 2;
8479 return rule;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8480 } else if (strncmp(args[0], "add-acl", 7) == 0) {
8481 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8482 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8483 /*
8484 * '+ 8' for 'add-acl('
8485 * '- 9' for 'add-acl(' + trailing ')'
8486 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8487 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8488
8489 cur_arg = 1;
8490
8491 if (!*args[cur_arg] ||
8492 (*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]8493 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8494 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8495 goto out_err;
8496 }
8497
8498 LIST_INIT(&rule->arg.map.key);
8499 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8500 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8501 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]8502 (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]8503 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8504 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8505 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8506 goto out_err;
8507 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8508 free(proxy->conf.lfs_file);
8509 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8510 proxy->conf.lfs_line = proxy->conf.args.line;
8511 cur_arg += 1;
8512 } else if (strncmp(args[0], "del-acl", 7) == 0) {
8513 /* http-request del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8514 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8515 /*
8516 * '+ 8' for 'del-acl('
8517 * '- 9' for 'del-acl(' + trailing ')'
8518 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8519 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8520
8521 cur_arg = 1;
8522
8523 if (!*args[cur_arg] ||
8524 (*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]8525 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8526 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8527 goto out_err;
8528 }
8529
8530 LIST_INIT(&rule->arg.map.key);
8531 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8532 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8533 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]8534 (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]8535 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8536 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8537 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8538 goto out_err;
8539 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8540 free(proxy->conf.lfs_file);
8541 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8542 proxy->conf.lfs_line = proxy->conf.args.line;
8543 cur_arg += 1;
8544 } else if (strncmp(args[0], "del-map", 7) == 0) {
8545 /* http-request del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8546 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8547 /*
8548 * '+ 8' for 'del-map('
8549 * '- 9' for 'del-map(' + trailing ')'
8550 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8551 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8552
8553 cur_arg = 1;
8554
8555 if (!*args[cur_arg] ||
8556 (*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]8557 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8558 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8559 goto out_err;
8560 }
8561
8562 LIST_INIT(&rule->arg.map.key);
8563 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8564 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8565 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]8566 (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]8567 ha_alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8568 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8569 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8570 goto out_err;
8571 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8572 free(proxy->conf.lfs_file);
8573 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8574 proxy->conf.lfs_line = proxy->conf.args.line;
8575 cur_arg += 1;
8576 } else if (strncmp(args[0], "set-map", 7) == 0) {
8577 /* http-request set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8578 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8579 /*
8580 * '+ 8' for 'set-map('
8581 * '- 9' for 'set-map(' + trailing ')'
8582 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8583 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8584
8585 cur_arg = 1;
8586
8587 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8588 (*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]8589 ha_alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8590 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8591 goto out_err;
8592 }
8593
8594 LIST_INIT(&rule->arg.map.key);
8595 LIST_INIT(&rule->arg.map.value);
8596 proxy->conf.args.ctx = ARGC_HRQ;
8597
8598 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8599 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8600 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]8601 (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]8602 ha_alert("parsing [%s:%d]: 'http-request %s' key: %s.\n",
8603 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8604 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8605 goto out_err;
8606 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8607
8608 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8609 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8610 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]8611 (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]8612 ha_alert("parsing [%s:%d]: 'http-request %s' pattern: %s.\n",
8613 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8614 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8615 goto out_err;
8616 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8617 free(proxy->conf.lfs_file);
8618 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8619 proxy->conf.lfs_line = proxy->conf.args.line;
8620
8621 cur_arg += 2;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8622 } else if (((custom = action_http_req_custom(args[0])) != NULL)) {
8623 char *errmsg = NULL;
8624 cur_arg = 1;
8625 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]8626 rule->from = ACT_F_HTTP_REQ;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]8627 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]8628 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8629 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8630 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8631 free(errmsg);
8632 goto out_err;
8633 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8634 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]8635 action_build_list(&http_req_keywords.list, &trash);
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8636 ha_alert("parsing [%s:%d]: 'http-request' expects 'allow', 'deny', 'auth', 'redirect', "
8637 "'tarpit', 'add-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
8638 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', 'track-sc*'"
8639 "%s%s, but got '%s'%s.\n",
8640 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8641 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8642 }
8643
8644 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
8645 struct acl_cond *cond;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]8646 char *errmsg = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8647
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]8648 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]8649 ha_alert("parsing [%s:%d] : error detected while parsing an 'http-request %s' condition : %s.\n",
8650 file, linenum, args[0], errmsg);
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]8651 free(errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8652 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8653 }
8654 rule->cond = cond;
8655 }
8656 else if (*args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8657 ha_alert("parsing [%s:%d]: 'http-request %s' expects 'realm' for 'auth' or"
8658 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
8659 file, linenum, args[0], args[cur_arg]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8660 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8661 }
8662
8663 return rule;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8664 out_err:
8665 free(rule);
8666 return NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8667}
8668
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8669/* parse an "http-respose" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8670struct 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]8671{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8672 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8673 struct action_kw *custom = NULL;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8674 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8675 char *error;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8676
8677 rule = calloc(1, sizeof(*rule));
8678 if (!rule) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8679 ha_alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8680 goto out_err;
8681 }
8682
8683 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8684 rule->action = ACT_ACTION_ALLOW;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8685 cur_arg = 1;
8686 } else if (!strcmp(args[0], "deny")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8687 rule->action = ACT_ACTION_DENY;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8688 cur_arg = 1;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8689 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8690 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8691 cur_arg = 1;
8692
8693 if (!*args[cur_arg] ||
8694 (*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]8695 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer value).\n",
8696 file, linenum, args[0]);
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8697 goto out_err;
8698 }
8699 rule->arg.nice = atoi(args[cur_arg]);
8700 if (rule->arg.nice < -1024)
8701 rule->arg.nice = -1024;
8702 else if (rule->arg.nice > 1024)
8703 rule->arg.nice = 1024;
8704 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8705 } else if (!strcmp(args[0], "set-tos")) {
8706#ifdef IP_TOS
8707 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8708 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8709 cur_arg = 1;
8710
8711 if (!*args[cur_arg] ||
8712 (*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]8713 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8714 file, linenum, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8715 goto out_err;
8716 }
8717
8718 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8719 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8720 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8721 file, linenum, err, args[0]);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8722 goto out_err;
8723 }
8724 cur_arg++;
8725#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8726 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]8727 goto out_err;
8728#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8729 } else if (!strcmp(args[0], "set-mark")) {
8730#ifdef SO_MARK
8731 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8732 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8733 cur_arg = 1;
8734
8735 if (!*args[cur_arg] ||
8736 (*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]8737 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8738 file, linenum, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8739 goto out_err;
8740 }
8741
8742 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8743 if (err && *err != '\0') {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8744 ha_alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8745 file, linenum, err, args[0]);
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8746 goto out_err;
8747 }
8748 cur_arg++;
8749 global.last_checks |= LSTCHK_NETADM;
8750#else
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8751 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]8752 goto out_err;
8753#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8754 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8755 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8756 cur_arg = 1;
8757
8758 if (!*args[cur_arg] ||
8759 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8760 bad_log_level:
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]8761 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (log level name or 'silent').\n",
8762 file, linenum, args[0]);
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8763 goto out_err;
8764 }
8765 if (strcmp(args[cur_arg], "silent") == 0)
8766 rule->arg.loglevel = -1;
Ruoshan Huangdd016782016-06-15 22:16:03 +0800[diff] [blame]8767 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8768 goto bad_log_level;
8769 cur_arg++;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8770 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8771 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8772 cur_arg = 1;
8773
8774 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8775 (*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]8776 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
8777 file, linenum, args[0]);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8778 goto out_err;
8779 }
8780
8781 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8782 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8783 LIST_INIT(&rule->arg.hdr_add.fmt);
8784
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8785 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8786 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8787 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]8788 (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]8789 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8790 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8791 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8792 goto out_err;
8793 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8794 free(proxy->conf.lfs_file);
8795 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8796 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8797 cur_arg += 2;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8798 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8799 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8800 cur_arg = 1;
8801
8802 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann12cb00b2014-08-08 17:29:06 +0200[diff] [blame]8803 (*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]8804 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 3 arguments.\n",
8805 file, linenum, args[0]);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8806 goto out_err;
8807 }
8808
8809 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8810 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8811 LIST_INIT(&rule->arg.hdr_add.fmt);
8812
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8813 error = NULL;
8814 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]8815 ha_alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8816 args[cur_arg + 1], error);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8817 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8818 goto out_err;
8819 }
8820
8821 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8822 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8823 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]8824 (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]8825 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8826 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8827 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8828 goto out_err;
8829 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8830
8831 free(proxy->conf.lfs_file);
8832 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8833 proxy->conf.lfs_line = proxy->conf.args.line;
8834 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8835 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8836 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8837 cur_arg = 1;
8838
8839 if (!*args[cur_arg] ||
8840 (*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]8841 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8842 file, linenum, args[0]);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8843 goto out_err;
8844 }
8845
8846 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8847 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8848
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8849 proxy->conf.args.ctx = ARGC_HRS;
8850 free(proxy->conf.lfs_file);
8851 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8852 proxy->conf.lfs_line = proxy->conf.args.line;
8853 cur_arg += 1;
8854 } else if (strncmp(args[0], "add-acl", 7) == 0) {
8855 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8856 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8857 /*
8858 * '+ 8' for 'add-acl('
8859 * '- 9' for 'add-acl(' + trailing ')'
8860 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8861 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8862
8863 cur_arg = 1;
8864
8865 if (!*args[cur_arg] ||
8866 (*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]8867 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8868 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8869 goto out_err;
8870 }
8871
8872 LIST_INIT(&rule->arg.map.key);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8873 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8874 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8875 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]8876 (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]8877 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8878 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8879 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8880 goto out_err;
8881 }
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8882 free(proxy->conf.lfs_file);
8883 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8884 proxy->conf.lfs_line = proxy->conf.args.line;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8885
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8886 cur_arg += 1;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8887 } else if (strncmp(args[0], "del-acl", 7) == 0) {
8888 /* http-response del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8889 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8890 /*
8891 * '+ 8' for 'del-acl('
8892 * '- 9' for 'del-acl(' + trailing ')'
8893 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8894 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8895
8896 cur_arg = 1;
8897
8898 if (!*args[cur_arg] ||
8899 (*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]8900 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8901 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8902 goto out_err;
8903 }
8904
8905 LIST_INIT(&rule->arg.map.key);
8906 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8907 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8908 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]8909 (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]8910 ha_alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8911 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8912 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8913 goto out_err;
8914 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8915 free(proxy->conf.lfs_file);
8916 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8917 proxy->conf.lfs_line = proxy->conf.args.line;
8918 cur_arg += 1;
8919 } else if (strncmp(args[0], "del-map", 7) == 0) {
8920 /* http-response del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8921 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8922 /*
8923 * '+ 8' for 'del-map('
8924 * '- 9' for 'del-map(' + trailing ')'
8925 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8926 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8927
8928 cur_arg = 1;
8929
8930 if (!*args[cur_arg] ||
8931 (*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]8932 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8933 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8934 goto out_err;
8935 }
8936
8937 LIST_INIT(&rule->arg.map.key);
8938 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8939 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8940 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]8941 (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]8942 ha_alert("parsing [%s:%d]: 'http-response %s' %s.\n",
8943 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8944 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8945 goto out_err;
8946 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8947 free(proxy->conf.lfs_file);
8948 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8949 proxy->conf.lfs_line = proxy->conf.args.line;
8950 cur_arg += 1;
8951 } else if (strncmp(args[0], "set-map", 7) == 0) {
8952 /* http-response set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8953 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8954 /*
8955 * '+ 8' for 'set-map('
8956 * '- 9' for 'set-map(' + trailing ')'
8957 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8958 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8959
8960 cur_arg = 1;
8961
8962 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8963 (*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]8964 ha_alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
8965 file, linenum, args[0]);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8966 goto out_err;
8967 }
8968
8969 LIST_INIT(&rule->arg.map.key);
8970 LIST_INIT(&rule->arg.map.value);
8971
8972 proxy->conf.args.ctx = ARGC_HRS;
8973
8974 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8975 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8976 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]8977 (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]8978 ha_alert("parsing [%s:%d]: 'http-response %s' name: %s.\n",
8979 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8980 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8981 goto out_err;
8982 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8983
8984 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8985 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8986 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]8987 (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]8988 ha_alert("parsing [%s:%d]: 'http-response %s' value: %s.\n",
8989 file, linenum, args[0], error);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8990 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8991 goto out_err;
8992 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8993
8994 free(proxy->conf.lfs_file);
8995 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8996 proxy->conf.lfs_line = proxy->conf.args.line;
8997
8998 cur_arg += 2;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]8999 } else if (strcmp(args[0], "redirect") == 0) {
9000 struct redirect_rule *redir;
9001 char *errmsg = NULL;
9002
9003 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]9004 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9005 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9006 goto out_err;
9007 }
9008
9009 /* this redirect rule might already contain a parsed condition which
9010 * we'll pass to the http-request rule.
9011 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9012 rule->action = ACT_HTTP_REDIR;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9013 rule->arg.redir = redir;
9014 rule->cond = redir->cond;
9015 redir->cond = NULL;
9016 cur_arg = 2;
9017 return rule;
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9018 } else if (strncmp(args[0], "track-sc", 8) == 0 &&
9019 args[0][9] == '\0' && args[0][8] >= '0' &&
9020 args[0][8] < '0' + MAX_SESS_STKCTR) { /* track-sc 0..9 */
9021 struct sample_expr *expr;
9022 unsigned int where;
9023 char *err = NULL;
9024
9025 cur_arg = 1;
9026 proxy->conf.args.ctx = ARGC_TRK;
9027
9028 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
9029 if (!expr) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9030 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9031 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9032 free(err);
9033 goto out_err;
9034 }
9035
9036 where = 0;
9037 if (proxy->cap & PR_CAP_FE)
9038 where |= SMP_VAL_FE_HRS_HDR;
9039 if (proxy->cap & PR_CAP_BE)
9040 where |= SMP_VAL_BE_HRS_HDR;
9041
9042 if (!(expr->fetch->val & where)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9043 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule :"
9044 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
9045 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
9046 args[cur_arg-1], sample_src_names(expr->fetch->use));
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9047 free(expr);
9048 goto out_err;
9049 }
9050
9051 if (strcmp(args[cur_arg], "table") == 0) {
9052 cur_arg++;
9053 if (!args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9054 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : missing table name.\n",
9055 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9056 free(expr);
9057 goto out_err;
9058 }
9059 /* we copy the table name for now, it will be resolved later */
9060 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
9061 cur_arg++;
9062 }
9063 rule->arg.trk_ctr.expr = expr;
9064 rule->action = ACT_ACTION_TRK_SC0 + args[0][8] - '0';
Christopher Faulet78880fb2017-09-18 14:43:55 +0200[diff] [blame]9065 rule->check_ptr = check_trk_action;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9066 } else if (((custom = action_http_res_custom(args[0])) != NULL)) {
9067 char *errmsg = NULL;
9068 cur_arg = 1;
9069 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]9070 rule->from = ACT_F_HTTP_RES;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]9071 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]9072 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9073 ha_alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9074 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9075 free(errmsg);
9076 goto out_err;
9077 }
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9078 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9079 action_build_list(&http_res_keywords.list, &trash);
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9080 ha_alert("parsing [%s:%d]: 'http-response' expects 'allow', 'deny', 'redirect', "
9081 "'add-header', 'del-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
9082 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', 'track-sc*'"
9083 "%s%s, but got '%s'%s.\n",
9084 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9085 goto out_err;
9086 }
9087
9088 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
9089 struct acl_cond *cond;
9090 char *errmsg = NULL;
9091
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]9092 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]9093 ha_alert("parsing [%s:%d] : error detected while parsing an 'http-response %s' condition : %s.\n",
9094 file, linenum, args[0], errmsg);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9095 free(errmsg);
9096 goto out_err;
9097 }
9098 rule->cond = cond;
9099 }
9100 else if (*args[cur_arg]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]9101 ha_alert("parsing [%s:%d]: 'http-response %s' expects"
9102 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
9103 file, linenum, args[0], args[cur_arg]);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9104 goto out_err;
9105 }
9106
9107 return rule;
9108 out_err:
9109 free(rule);
9110 return NULL;
9111}
9112
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9113/* Parses a redirect rule. Returns the redirect rule on success or NULL on error,
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9114 * 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]9115 * dynamic log-format rule instead of a static string. Parameter <dir> indicates
9116 * the direction of the rule, and equals 0 for request, non-zero for responses.
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9117 */
9118struct redirect_rule *http_parse_redirect_rule(const char *file, int linenum, struct proxy *curproxy,
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9119 const char **args, char **errmsg, int use_fmt, int dir)
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9120{
9121 struct redirect_rule *rule;
9122 int cur_arg;
9123 int type = REDIRECT_TYPE_NONE;
9124 int code = 302;
9125 const char *destination = NULL;
9126 const char *cookie = NULL;
9127 int cookie_set = 0;
9128 unsigned int flags = REDIRECT_FLAG_NONE;
9129 struct acl_cond *cond = NULL;
9130
9131 cur_arg = 0;
9132 while (*(args[cur_arg])) {
9133 if (strcmp(args[cur_arg], "location") == 0) {
9134 if (!*args[cur_arg + 1])
9135 goto missing_arg;
9136
9137 type = REDIRECT_TYPE_LOCATION;
9138 cur_arg++;
9139 destination = args[cur_arg];
9140 }
9141 else if (strcmp(args[cur_arg], "prefix") == 0) {
9142 if (!*args[cur_arg + 1])
9143 goto missing_arg;
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9144 type = REDIRECT_TYPE_PREFIX;
9145 cur_arg++;
9146 destination = args[cur_arg];
9147 }
9148 else if (strcmp(args[cur_arg], "scheme") == 0) {
9149 if (!*args[cur_arg + 1])
9150 goto missing_arg;
9151
9152 type = REDIRECT_TYPE_SCHEME;
9153 cur_arg++;
9154 destination = args[cur_arg];
9155 }
9156 else if (strcmp(args[cur_arg], "set-cookie") == 0) {
9157 if (!*args[cur_arg + 1])
9158 goto missing_arg;
9159
9160 cur_arg++;
9161 cookie = args[cur_arg];
9162 cookie_set = 1;
9163 }
9164 else if (strcmp(args[cur_arg], "clear-cookie") == 0) {
9165 if (!*args[cur_arg + 1])
9166 goto missing_arg;
9167
9168 cur_arg++;
9169 cookie = args[cur_arg];
9170 cookie_set = 0;
9171 }
9172 else if (strcmp(args[cur_arg], "code") == 0) {
9173 if (!*args[cur_arg + 1])
9174 goto missing_arg;
9175
9176 cur_arg++;
9177 code = atol(args[cur_arg]);
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9178 if (code < 301 || code > 308 || (code > 303 && code < 307)) {
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9179 memprintf(errmsg,
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9180 "'%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]9181 args[cur_arg - 1], args[cur_arg]);
9182 return NULL;
9183 }
9184 }
9185 else if (!strcmp(args[cur_arg],"drop-query")) {
9186 flags |= REDIRECT_FLAG_DROP_QS;
9187 }
9188 else if (!strcmp(args[cur_arg],"append-slash")) {
9189 flags |= REDIRECT_FLAG_APPEND_SLASH;
9190 }
9191 else if (strcmp(args[cur_arg], "if") == 0 ||
9192 strcmp(args[cur_arg], "unless") == 0) {
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]9193 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]9194 if (!cond) {
9195 memprintf(errmsg, "error in condition: %s", *errmsg);
9196 return NULL;
9197 }
9198 break;
9199 }
9200 else {
9201 memprintf(errmsg,
9202 "expects 'code', 'prefix', 'location', 'scheme', 'set-cookie', 'clear-cookie', 'drop-query' or 'append-slash' (was '%s')",
9203 args[cur_arg]);
9204 return NULL;
9205 }
9206 cur_arg++;
9207 }
9208
9209 if (type == REDIRECT_TYPE_NONE) {
9210 memprintf(errmsg, "redirection type expected ('prefix', 'location', or 'scheme')");
9211 return NULL;
9212 }
9213
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9214 if (dir && type != REDIRECT_TYPE_LOCATION) {
9215 memprintf(errmsg, "response only supports redirect type 'location'");
9216 return NULL;
9217 }
9218
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]9219 rule = calloc(1, sizeof(*rule));
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9220 rule->cond = cond;
Willy Tarreau60e08382013-12-03 00:48:45 +0100[diff] [blame]9221 LIST_INIT(&rule->rdr_fmt);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9222
9223 if (!use_fmt) {
9224 /* old-style static redirect rule */
9225 rule->rdr_str = strdup(destination);
9226 rule->rdr_len = strlen(destination);
9227 }
9228 else {
9229 /* log-format based redirect rule */
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9230
9231 /* Parse destination. Note that in the REDIRECT_TYPE_PREFIX case,
9232 * if prefix == "/", we don't want to add anything, otherwise it
9233 * makes it hard for the user to configure a self-redirection.
9234 */
Godbachd9722032014-12-18 15:44:58 +0800[diff] [blame]9235 curproxy->conf.args.ctx = ARGC_RDR;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9236 if (!(type == REDIRECT_TYPE_PREFIX && destination[0] == '/' && destination[1] == '\0')) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9237 if (!parse_logformat_string(destination, curproxy, &rule->rdr_fmt, LOG_OPT_HTTP,
9238 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]9239 : (curproxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9240 errmsg)) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9241 return NULL;
9242 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9243 free(curproxy->conf.lfs_file);
9244 curproxy->conf.lfs_file = strdup(curproxy->conf.args.file);
9245 curproxy->conf.lfs_line = curproxy->conf.args.line;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9246 }
9247 }
9248
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9249 if (cookie) {
9250 /* depending on cookie_set, either we want to set the cookie, or to clear it.
9251 * a clear consists in appending "; path=/; Max-Age=0;" at the end.
9252 */
9253 rule->cookie_len = strlen(cookie);
9254 if (cookie_set) {
9255 rule->cookie_str = malloc(rule->cookie_len + 10);
9256 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9257 memcpy(rule->cookie_str + rule->cookie_len, "; path=/;", 10);
9258 rule->cookie_len += 9;
9259 } else {
9260 rule->cookie_str = malloc(rule->cookie_len + 21);
9261 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9262 memcpy(rule->cookie_str + rule->cookie_len, "; path=/; Max-Age=0;", 21);
9263 rule->cookie_len += 20;
9264 }
9265 }
9266 rule->type = type;
9267 rule->code = code;
9268 rule->flags = flags;
9269 LIST_INIT(&rule->list);
9270 return rule;
9271
9272 missing_arg:
9273 memprintf(errmsg, "missing argument for '%s'", args[cur_arg]);
9274 return NULL;
9275}
9276
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9277/************************************************************************/
9278/* The code below is dedicated to ACL parsing and matching */
9279/************************************************************************/
9280
9281
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9282/* This function ensures that the prerequisites for an L7 fetch are ready,
9283 * which means that a request or response is ready. If some data is missing,
9284 * 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]9285 * to extract data from L7. If <req_vol> is non-null during a request prefetch,
9286 * another test is made to ensure the required information is not gone.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9287 *
9288 * The function returns :
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9289 * 0 with SMP_F_MAY_CHANGE in the sample flags if some data is missing to
9290 * decide whether or not an HTTP message is present ;
9291 * 0 if the requested data cannot be fetched or if it is certain that
9292 * we'll never have any HTTP message there ;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9293 * 1 if an HTTP message is ready
9294 */
James Rosewell91a41cb2015-09-18 17:11:16 +0100[diff] [blame]9295int smp_prefetch_http(struct proxy *px, struct stream *s, unsigned int opt,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9296 const struct arg *args, struct sample *smp, int req_vol)
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9297{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9298 struct http_txn *txn;
9299 struct http_msg *msg;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9300
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9301 /* Note: it is possible that <s> is NULL when called before stream
9302 * initialization (eg: tcp-request connection), so this function is the
9303 * one responsible for guarding against this case for all HTTP users.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9304 */
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9305 if (!s)
9306 return 0;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9307
Thierry FOURNIERed08d6a2015-09-24 08:40:18 +0200[diff] [blame]9308 if (!s->txn) {
9309 if (unlikely(!http_alloc_txn(s)))
9310 return 0; /* not enough memory */
9311 http_init_txn(s);
9312 }
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9313 txn = s->txn;
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9314 msg = &txn->req;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9315
9316 /* Check for a dependency on a request */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9317 smp->data.type = SMP_T_BOOL;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9318
Willy Tarreau32a6f2e2012-04-25 10:13:36 +0200[diff] [blame]9319 if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9320 /* If the buffer does not leave enough free space at the end,
9321 * we must first realign it.
9322 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9323 if (s->req.buf->p > s->req.buf->data &&
9324 s->req.buf->i + s->req.buf->p > s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)
9325 buffer_slow_realign(s->req.buf);
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9326
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9327 if (unlikely(txn->req.msg_state < HTTP_MSG_BODY)) {
Willy Tarreau472b1ee2013-10-14 22:41:30 +0200[diff] [blame]9328 if (msg->msg_state == HTTP_MSG_ERROR)
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9329 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9330
9331 /* Try to decode HTTP request */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9332 if (likely(msg->next < s->req.buf->i))
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9333 http_msg_analyzer(msg, &txn->hdr_idx);
9334
9335 /* Still no valid request ? */
9336 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau3bf1b2b2012-08-27 20:46:07 +0200[diff] [blame]9337 if ((msg->msg_state == HTTP_MSG_ERROR) ||
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9338 buffer_full(s->req.buf, global.tune.maxrewrite)) {
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9339 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9340 }
9341 /* wait for final state */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9342 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9343 return 0;
9344 }
9345
9346 /* OK we just got a valid HTTP request. We have some minor
9347 * preparation to perform so that further checks can rely
9348 * on HTTP tests.
9349 */
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9350
9351 /* If the request was parsed but was too large, we must absolutely
9352 * return an error so that it is not processed. At the moment this
9353 * cannot happen, but if the parsers are to change in the future,
9354 * we want this check to be maintained.
9355 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9356 if (unlikely(s->req.buf->i + s->req.buf->p >
9357 s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]9358 msg->err_state = msg->msg_state;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9359 msg->msg_state = HTTP_MSG_ERROR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9360 smp->data.u.sint = 1;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9361 return 1;
9362 }
9363
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9364 txn->meth = find_http_meth(msg->chn->buf->p, msg->sl.rq.m_l);
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9365 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]9366 s->flags |= SF_REDIRECTABLE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9367
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9368 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
9369 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9370 }
9371
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9372 if (req_vol && txn->rsp.msg_state != HTTP_MSG_RPBEFORE) {
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9373 return 0; /* data might have moved and indexes changed */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9374 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9375
9376 /* otherwise everything's ready for the request */
9377 }
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9378 else {
9379 /* Check for a dependency on a response */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9380 if (txn->rsp.msg_state < HTTP_MSG_BODY) {
9381 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9382 return 0;
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9383 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9384 }
9385
9386 /* everything's OK */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9387 smp->data.u.sint = 1;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9388 return 1;
9389}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9390
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9391/* 1. Check on METHOD
9392 * We use the pre-parsed method if it is known, and store its number as an
9393 * integer. If it is unknown, we use the pointer and the length.
9394 */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9395static int pat_parse_meth(const char *text, struct pattern *pattern, int mflags, char **err)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9396{
9397 int len, meth;
9398
Thierry FOURNIER580c32c2014-01-24 10:58:12 +0100[diff] [blame]9399 len = strlen(text);
9400 meth = find_http_meth(text, len);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9401
9402 pattern->val.i = meth;
9403 if (meth == HTTP_METH_OTHER) {
Willy Tarreau912c1192014-08-29 15:15:50 +0200[diff] [blame]9404 pattern->ptr.str = (char *)text;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9405 pattern->len = len;
9406 }
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9407 else {
9408 pattern->ptr.str = NULL;
9409 pattern->len = 0;
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9410 }
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9411 return 1;
9412}
9413
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9414/* This function fetches the method of current HTTP request and stores
9415 * it in the global pattern struct as a chunk. There are two possibilities :
9416 * - if the method is known (not HTTP_METH_OTHER), its identifier is stored
9417 * in <len> and <ptr> is NULL ;
9418 * - if the method is unknown (HTTP_METH_OTHER), <ptr> points to the text and
9419 * <len> to its length.
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]9420 * This is intended to be used with pat_match_meth() only.
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9421 */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9422static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9423smp_fetch_meth(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9424{
9425 int meth;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9426 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9427
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9428 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9429
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9430 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9431 meth = txn->meth;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9432 smp->data.type = SMP_T_METH;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9433 smp->data.u.meth.meth = meth;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9434 if (meth == HTTP_METH_OTHER) {
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9435 if (txn->rsp.msg_state != HTTP_MSG_RPBEFORE)
9436 /* ensure the indexes are not affected */
9437 return 0;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9438 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9439 smp->data.u.meth.str.len = txn->req.sl.rq.m_l;
9440 smp->data.u.meth.str.str = txn->req.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9441 }
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9442 smp->flags |= SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9443 return 1;
9444}
9445
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9446/* See above how the method is stored in the global pattern */
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9447static struct pattern *pat_match_meth(struct sample *smp, struct pattern_expr *expr, int fill)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9448{
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9449 int icase;
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9450 struct pattern_list *lst;
9451 struct pattern *pattern;
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9452
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9453 list_for_each_entry(lst, &expr->patterns, list) {
9454 pattern = &lst->pat;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9455
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9456 /* well-known method */
9457 if (pattern->val.i != HTTP_METH_OTHER) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9458 if (smp->data.u.meth.meth == pattern->val.i)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9459 return pattern;
9460 else
9461 continue;
9462 }
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9463
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9464 /* Other method, we must compare the strings */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9465 if (pattern->len != smp->data.u.meth.str.len)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9466 continue;
9467
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9468 icase = expr->mflags & PAT_MF_IGNORE_CASE;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9469 if ((icase && strncasecmp(pattern->ptr.str, smp->data.u.meth.str.str, smp->data.u.meth.str.len) == 0) ||
9470 (!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]9471 return pattern;
9472 }
9473 return NULL;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9474}
9475
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9476static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9477smp_fetch_rqver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9478{
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9479 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9480 char *ptr;
9481 int len;
9482
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9483 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9484
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9485 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9486 len = txn->req.sl.rq.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9487 ptr = txn->req.chn->buf->p + txn->req.sl.rq.v;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9488
9489 while ((len-- > 0) && (*ptr++ != '/'));
9490 if (len <= 0)
9491 return 0;
9492
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9493 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9494 smp->data.u.str.str = ptr;
9495 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9496
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9497 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9498 return 1;
9499}
9500
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9501static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9502smp_fetch_stver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9503{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9504 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9505 char *ptr;
9506 int len;
9507
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9508 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9509
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9510 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9511 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9512 return 0;
9513
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9514 len = txn->rsp.sl.st.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9515 ptr = txn->rsp.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9516
9517 while ((len-- > 0) && (*ptr++ != '/'));
9518 if (len <= 0)
9519 return 0;
9520
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9521 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9522 smp->data.u.str.str = ptr;
9523 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9524
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9525 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9526 return 1;
9527}
9528
9529/* 3. Check on Status Code. We manipulate integers here. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9530static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9531smp_fetch_stcode(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9532{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9533 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9534 char *ptr;
9535 int len;
9536
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9537 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9538
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9539 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9540 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9541 return 0;
9542
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9543 len = txn->rsp.sl.st.c_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9544 ptr = txn->rsp.chn->buf->p + txn->rsp.sl.st.c;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9545
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9546 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9547 smp->data.u.sint = __strl2ui(ptr, len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9548 smp->flags = SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9549 return 1;
9550}
9551
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9552static int
9553smp_fetch_uniqueid(const struct arg *args, struct sample *smp, const char *kw, void *private)
9554{
9555 if (LIST_ISEMPTY(&smp->sess->fe->format_unique_id))
9556 return 0;
9557
9558 if (!smp->strm->unique_id) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]9559 if ((smp->strm->unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9560 return 0;
9561 smp->strm->unique_id[0] = '\0';
9562 }
9563 smp->data.u.str.len = build_logline(smp->strm, smp->strm->unique_id,
9564 UNIQUEID_LEN, &smp->sess->fe->format_unique_id);
9565
9566 smp->data.type = SMP_T_STR;
9567 smp->data.u.str.str = smp->strm->unique_id;
9568 smp->flags = SMP_F_CONST;
9569 return 1;
9570}
9571
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]9572/* Returns a string block containing all headers including the
9573 * empty line wich separes headers from the body. This is useful
9574 * form some headers analysis.
9575 */
9576static int
9577smp_fetch_hdrs(const struct arg *args, struct sample *smp, const char *kw, void *private)
9578{
9579 struct http_msg *msg;
9580 struct hdr_idx *idx;
9581 struct http_txn *txn;
9582
9583 CHECK_HTTP_MESSAGE_FIRST();
9584
9585 txn = smp->strm->txn;
9586 idx = &txn->hdr_idx;
9587 msg = &txn->req;
9588
9589 smp->data.type = SMP_T_STR;
9590 smp->data.u.str.str = msg->chn->buf->p + hdr_idx_first_pos(idx);
9591 smp->data.u.str.len = msg->eoh - hdr_idx_first_pos(idx) + 1 +
9592 (msg->chn->buf->p[msg->eoh] == '\r');
9593
9594 return 1;
9595}
9596
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9597/* Returns the header request in a length/value encoded format.
9598 * This is useful for exchanges with the SPOE.
9599 *
9600 * A "length value" is a multibyte code encoding numbers. It uses the
9601 * SPOE format. The encoding is the following:
9602 *
9603 * Each couple "header name" / "header value" is composed
9604 * like this:
9605 * "length value" "header name bytes"
9606 * "length value" "header value bytes"
9607 * When the last header is reached, the header name and the header
9608 * value are empty. Their length are 0
9609 */
9610static int
9611smp_fetch_hdrs_bin(const struct arg *args, struct sample *smp, const char *kw, void *private)
9612{
9613 struct http_msg *msg;
9614 struct chunk *temp;
9615 struct hdr_idx *idx;
9616 const char *cur_ptr, *cur_next, *p;
9617 int old_idx, cur_idx;
9618 struct hdr_idx_elem *cur_hdr;
9619 const char *hn, *hv;
9620 int hnl, hvl;
9621 int ret;
9622 struct http_txn *txn;
9623 char *buf;
9624 char *end;
9625
9626 CHECK_HTTP_MESSAGE_FIRST();
9627
9628 temp = get_trash_chunk();
9629 buf = temp->str;
9630 end = temp->str + temp->size;
9631
9632 txn = smp->strm->txn;
9633 idx = &txn->hdr_idx;
9634 msg = &txn->req;
9635
9636 /* Build array of headers. */
9637 old_idx = 0;
9638 cur_next = msg->chn->buf->p + hdr_idx_first_pos(idx);
9639 while (1) {
9640 cur_idx = idx->v[old_idx].next;
9641 if (!cur_idx)
9642 break;
9643 old_idx = cur_idx;
9644
9645 cur_hdr = &idx->v[cur_idx];
9646 cur_ptr = cur_next;
9647 cur_next = cur_ptr + cur_hdr->len + cur_hdr->cr + 1;
9648
9649 /* Now we have one full header at cur_ptr of len cur_hdr->len,
9650 * and the next header starts at cur_next. We'll check
9651 * this header in the list as well as against the default
9652 * rule.
9653 */
9654
9655 /* look for ': *'. */
9656 hn = cur_ptr;
9657 for (p = cur_ptr; p < cur_ptr + cur_hdr->len && *p != ':'; p++);
9658 if (p >= cur_ptr+cur_hdr->len)
9659 continue;
9660 hnl = p - hn;
9661 p++;
9662 while (p < cur_ptr + cur_hdr->len && (*p == ' ' || *p == '\t'))
9663 p++;
9664 if (p >= cur_ptr + cur_hdr->len)
9665 continue;
9666 hv = p;
9667 hvl = cur_ptr + cur_hdr->len-p;
9668
9669 /* encode the header name. */
9670 ret = encode_varint(hnl, &buf, end);
9671 if (ret == -1)
9672 return 0;
9673 if (buf + hnl > end)
9674 return 0;
9675 memcpy(buf, hn, hnl);
9676 buf += hnl;
9677
9678 /* encode and copy the value. */
9679 ret = encode_varint(hvl, &buf, end);
9680 if (ret == -1)
9681 return 0;
9682 if (buf + hvl > end)
9683 return 0;
9684 memcpy(buf, hv, hvl);
9685 buf += hvl;
9686 }
9687
9688 /* encode the end of the header list with empty
9689 * header name and header value.
9690 */
9691 ret = encode_varint(0, &buf, end);
9692 if (ret == -1)
9693 return 0;
9694 ret = encode_varint(0, &buf, end);
9695 if (ret == -1)
9696 return 0;
9697
9698 /* Initialise sample data which will be filled. */
9699 smp->data.type = SMP_T_BIN;
9700 smp->data.u.str.str = temp->str;
9701 smp->data.u.str.len = buf - temp->str;
9702 smp->data.u.str.size = temp->size;
9703
9704 return 1;
9705}
9706
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9707/* returns the longest available part of the body. This requires that the body
9708 * has been waited for using http-buffer-request.
9709 */
9710static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9711smp_fetch_body(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9712{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9713 struct http_msg *msg;
9714 unsigned long len;
9715 unsigned long block1;
9716 char *body;
9717 struct chunk *temp;
9718
9719 CHECK_HTTP_MESSAGE_FIRST();
9720
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9721 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9722 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9723 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9724 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9725
9726 len = http_body_bytes(msg);
9727 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
9728
9729 block1 = len;
9730 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
9731 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
9732
9733 if (block1 == len) {
9734 /* buffer is not wrapped (or empty) */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9735 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9736 smp->data.u.str.str = body;
9737 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9738 smp->flags = SMP_F_VOL_TEST | SMP_F_CONST;
9739 }
9740 else {
9741 /* buffer is wrapped, we need to defragment it */
9742 temp = get_trash_chunk();
9743 memcpy(temp->str, body, block1);
9744 memcpy(temp->str + block1, msg->chn->buf->data, len - block1);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9745 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9746 smp->data.u.str.str = temp->str;
9747 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9748 smp->flags = SMP_F_VOL_TEST;
9749 }
9750 return 1;
9751}
9752
9753
9754/* returns the available length of the body. This requires that the body
9755 * has been waited for using http-buffer-request.
9756 */
9757static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9758smp_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]9759{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9760 struct http_msg *msg;
9761
9762 CHECK_HTTP_MESSAGE_FIRST();
9763
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9764 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9765 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9766 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9767 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9768
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9769 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9770 smp->data.u.sint = http_body_bytes(msg);
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9771
9772 smp->flags = SMP_F_VOL_TEST;
9773 return 1;
9774}
9775
9776
9777/* returns the advertised length of the body, or the advertised size of the
9778 * chunks available in the buffer. This requires that the body has been waited
9779 * for using http-buffer-request.
9780 */
9781static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9782smp_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]9783{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9784 struct http_msg *msg;
9785
9786 CHECK_HTTP_MESSAGE_FIRST();
9787
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9788 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9789 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9790 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9791 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9792
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9793 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9794 smp->data.u.sint = msg->body_len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9795
9796 smp->flags = SMP_F_VOL_TEST;
9797 return 1;
9798}
9799
9800
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9801/* 4. Check on URL/URI. A pointer to the URI is stored. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9802static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9803smp_fetch_url(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9804{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9805 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9806
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9807 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9808
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9809 txn = smp->strm->txn;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9810 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9811 smp->data.u.str.len = txn->req.sl.rq.u_l;
9812 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]9813 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9814 return 1;
9815}
9816
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9817static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9818smp_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]9819{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9820 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]9821 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9822
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9823 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9824
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9825 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]9826 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]9827 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
Willy Tarreauf4362b32011-12-16 17:49:52 +0100[diff] [blame]9828 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9829
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9830 smp->data.type = SMP_T_IPV4;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9831 smp->data.u.ipv4 = ((struct sockaddr_in *)&addr)->sin_addr;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9832 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9833 return 1;
9834}
9835
9836static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9837smp_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]9838{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9839 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]9840 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9841
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9842 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9843
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9844 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]9845 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]9846 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
9847 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9848
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9849 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9850 smp->data.u.sint = ntohs(((struct sockaddr_in *)&addr)->sin_port);
Willy Tarreau21e5b0e2012-04-23 19:25:44 +0200[diff] [blame]9851 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9852 return 1;
9853}
9854
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9855/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
9856 * Accepts an optional argument of type string containing the header field name,
9857 * and an optional argument of type signed or unsigned integer to request an
9858 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9859 * headers are considered from the first one. It does not stop on commas and
9860 * returns full lines instead (useful for User-Agent or Date for example).
9861 */
9862static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9863smp_fetch_fhdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9864{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9865 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9866 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9867 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9868 int occ = 0;
9869 const char *name_str = NULL;
9870 int name_len = 0;
9871
9872 if (!ctx) {
9873 /* first call */
9874 ctx = &static_hdr_ctx;
9875 ctx->idx = 0;
9876 smp->ctx.a[0] = ctx;
9877 }
9878
9879 if (args) {
9880 if (args[0].type != ARGT_STR)
9881 return 0;
9882 name_str = args[0].data.str.str;
9883 name_len = args[0].data.str.len;
9884
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]9885 if (args[1].type == ARGT_SINT)
9886 occ = args[1].data.sint;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9887 }
9888
9889 CHECK_HTTP_MESSAGE_FIRST();
9890
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9891 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9892 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]9893
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9894 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
9895 /* search for header from the beginning */
9896 ctx->idx = 0;
9897
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9898 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9899 /* no explicit occurrence and single fetch => last header by default */
9900 occ = -1;
9901
9902 if (!occ)
9903 /* prepare to report multiple occurrences for ACL fetches */
9904 smp->flags |= SMP_F_NOT_LAST;
9905
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9906 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9907 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9908 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]9909 return 1;
9910
9911 smp->flags &= ~SMP_F_NOT_LAST;
9912 return 0;
9913}
9914
9915/* 6. Check on HTTP header count. The number of occurrences is returned.
9916 * Accepts exactly 1 argument of type string. It does not stop on commas and
9917 * returns full lines instead (useful for User-Agent or Date for example).
9918 */
9919static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9920smp_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]9921{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9922 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9923 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9924 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9925 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]9926 const char *name = NULL;
9927 int len = 0;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9928
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]9929 if (args && args->type == ARGT_STR) {
9930 name = args->data.str.str;
9931 len = args->data.str.len;
9932 }
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9933
9934 CHECK_HTTP_MESSAGE_FIRST();
9935
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9936 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9937 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]9938
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9939 ctx.idx = 0;
9940 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]9941 while (http_find_full_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9942 cnt++;
9943
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9944 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9945 smp->data.u.sint = cnt;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9946 smp->flags = SMP_F_VOL_HDR;
9947 return 1;
9948}
9949
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9950static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9951smp_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]9952{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9953 struct hdr_idx *idx;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9954 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9955 const struct http_msg *msg;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9956 struct chunk *temp;
9957 char del = ',';
9958
9959 if (args && args->type == ARGT_STR)
9960 del = *args[0].data.str.str;
9961
9962 CHECK_HTTP_MESSAGE_FIRST();
9963
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9964 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9965 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]9966
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9967 temp = get_trash_chunk();
9968
9969 ctx.idx = 0;
9970 while (http_find_next_header(msg->chn->buf->p, idx, &ctx)) {
9971 if (temp->len)
9972 temp->str[temp->len++] = del;
9973 memcpy(temp->str + temp->len, ctx.line, ctx.del);
9974 temp->len += ctx.del;
9975 }
9976
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9977 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9978 smp->data.u.str.str = temp->str;
9979 smp->data.u.str.len = temp->len;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9980 smp->flags = SMP_F_VOL_HDR;
9981 return 1;
9982}
9983
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9984/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
9985 * Accepts an optional argument of type string containing the header field name,
9986 * and an optional argument of type signed or unsigned integer to request an
9987 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9988 * headers are considered from the first one.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9989 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9990static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9991smp_fetch_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9992{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9993 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]9994 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9995 const struct http_msg *msg;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9996 int occ = 0;
9997 const char *name_str = NULL;
9998 int name_len = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]9999
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10000 if (!ctx) {
10001 /* first call */
10002 ctx = &static_hdr_ctx;
10003 ctx->idx = 0;
Willy Tarreauffb6f082013-04-02 23:16:53 +0200[diff] [blame]10004 smp->ctx.a[0] = ctx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10005 }
10006
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10007 if (args) {
10008 if (args[0].type != ARGT_STR)
10009 return 0;
10010 name_str = args[0].data.str.str;
10011 name_len = args[0].data.str.len;
10012
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10013 if (args[1].type == ARGT_SINT)
10014 occ = args[1].data.sint;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10015 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10016
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10017 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10018
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10019 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10020 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]10021
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10022 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10023 /* search for header from the beginning */
10024 ctx->idx = 0;
10025
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10026 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10027 /* no explicit occurrence and single fetch => last header by default */
10028 occ = -1;
10029
10030 if (!occ)
10031 /* prepare to report multiple occurrences for ACL fetches */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10032 smp->flags |= SMP_F_NOT_LAST;
Willy Tarreau664092c2011-12-16 19:11:42 +0100[diff] [blame]10033
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10034 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10035 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10036 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]10037 return 1;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10038
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10039 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10040 return 0;
10041}
10042
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10043/* 6. Check on HTTP header count. The number of occurrences is returned.
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10044 * Accepts exactly 1 argument of type string.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10045 */
10046static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10047smp_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]10048{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10049 struct hdr_idx *idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10050 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10051 const struct http_msg *msg;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10052 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10053 const char *name = NULL;
10054 int len = 0;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10055
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10056 if (args && args->type == ARGT_STR) {
10057 name = args->data.str.str;
10058 len = args->data.str.len;
10059 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10060
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10061 CHECK_HTTP_MESSAGE_FIRST();
10062
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10063 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10064 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]10065
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10066 ctx.idx = 0;
10067 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10068 while (http_find_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10069 cnt++;
10070
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10071 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10072 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10073 smp->flags = SMP_F_VOL_HDR;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10074 return 1;
10075}
10076
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10077/* Fetch an HTTP header's integer value. The integer value is returned. It
10078 * takes a mandatory argument of type string and an optional one of type int
10079 * to designate a specific occurrence. It returns an unsigned integer, which
10080 * may or may not be appropriate for everything.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10081 */
10082static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10083smp_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]10084{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10085 int ret = smp_fetch_hdr(args, smp, kw, private);
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10086
Willy Tarreauf853c462012-04-23 18:53:56 +0200[diff] [blame]10087 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10088 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10089 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]10090 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10091
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10092 return ret;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10093}
10094
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10095/* Fetch an HTTP header's IP value. takes a mandatory argument of type string
10096 * and an optional one of type int to designate a specific occurrence.
10097 * It returns an IPv4 or IPv6 address.
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10098 */
10099static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10100smp_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]10101{
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10102 int ret;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10103
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10104 while ((ret = smp_fetch_hdr(args, smp, kw, private)) > 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10105 if (url2ipv4((char *)smp->data.u.str.str, &smp->data.u.ipv4)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10106 smp->data.type = SMP_T_IPV4;
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10107 break;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10108 } else {
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10109 struct chunk *temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10110 if (smp->data.u.str.len < temp->size - 1) {
10111 memcpy(temp->str, smp->data.u.str.str, smp->data.u.str.len);
10112 temp->str[smp->data.u.str.len] = '\0';
10113 if (inet_pton(AF_INET6, temp->str, &smp->data.u.ipv6)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10114 smp->data.type = SMP_T_IPV6;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10115 break;
10116 }
10117 }
10118 }
10119
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10120 /* if the header doesn't match an IP address, fetch next one */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10121 if (!(smp->flags & SMP_F_NOT_LAST))
10122 return 0;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10123 }
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10124 return ret;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10125}
10126
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10127/* 8. Check on URI PATH. A pointer to the PATH is stored. The path starts at
10128 * the first '/' after the possible hostname, and ends before the possible '?'.
10129 */
10130static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10131smp_fetch_path(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10132{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10133 struct http_txn *txn;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10134 char *ptr, *end;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10135
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10136 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10137
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10138 txn = smp->strm->txn;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10139 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]10140 ptr = http_get_path(txn);
10141 if (!ptr)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10142 return 0;
10143
10144 /* OK, we got the '/' ! */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10145 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10146 smp->data.u.str.str = ptr;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10147
10148 while (ptr < end && *ptr != '?')
10149 ptr++;
10150
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10151 smp->data.u.str.len = ptr - smp->data.u.str.str;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10152 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10153 return 1;
10154}
10155
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10156/* This produces a concatenation of the first occurrence of the Host header
10157 * followed by the path component if it begins with a slash ('/'). This means
10158 * that '*' will not be added, resulting in exactly the first Host entry.
10159 * If no Host header is found, then the path is returned as-is. The returned
10160 * 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]10161 * The returned sample is of type string.
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10162 */
10163static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10164smp_fetch_base(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10165{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10166 struct http_txn *txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10167 char *ptr, *end, *beg;
10168 struct hdr_ctx ctx;
Willy Tarreau3caf2af2014-06-24 17:27:02 +0200[diff] [blame]10169 struct chunk *temp;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10170
10171 CHECK_HTTP_MESSAGE_FIRST();
10172
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10173 txn = smp->strm->txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10174 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10175 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]10176 return smp_fetch_path(args, smp, kw, private);
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10177
10178 /* 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]10179 temp = get_trash_chunk();
10180 memcpy(temp->str, ctx.line + ctx.val, ctx.vlen);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10181 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10182 smp->data.u.str.str = temp->str;
10183 smp->data.u.str.len = ctx.vlen;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10184
10185 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10186 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]10187 beg = http_get_path(txn);
10188 if (!beg)
10189 beg = end;
10190
10191 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10192
10193 if (beg < ptr && *beg == '/') {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10194 memcpy(smp->data.u.str.str + smp->data.u.str.len, beg, ptr - beg);
10195 smp->data.u.str.len += ptr - beg;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10196 }
10197
10198 smp->flags = SMP_F_VOL_1ST;
10199 return 1;
10200}
10201
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10202/* This produces a 32-bit hash of the concatenation of the first occurrence of
10203 * the Host header followed by the path component if it begins with a slash ('/').
10204 * This means that '*' will not be added, resulting in exactly the first Host
10205 * 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]10206 * is hashed using the path hash followed by a full avalanche hash and provides a
10207 * 32-bit integer value. This fetch is useful for tracking per-path activity on
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10208 * high-traffic sites without having to store whole paths.
10209 */
Thierry FOURNIER055b9d52014-07-15 16:11:07 +0200[diff] [blame]10210int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10211smp_fetch_base32(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10212{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10213 struct http_txn *txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10214 struct hdr_ctx ctx;
10215 unsigned int hash = 0;
10216 char *ptr, *beg, *end;
10217 int len;
10218
10219 CHECK_HTTP_MESSAGE_FIRST();
10220
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10221 txn = smp->strm->txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10222 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10223 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]10224 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
10225 ptr = ctx.line + ctx.val;
10226 len = ctx.vlen;
10227 while (len--)
10228 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
10229 }
10230
10231 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10232 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]10233 beg = http_get_path(txn);
10234 if (!beg)
10235 beg = end;
10236
10237 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10238
10239 if (beg < ptr && *beg == '/') {
10240 while (beg < ptr)
10241 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
10242 }
10243 hash = full_hash(hash);
10244
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10245 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10246 smp->data.u.sint = hash;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10247 smp->flags = SMP_F_VOL_1ST;
10248 return 1;
10249}
10250
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10251/* 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]10252 * path as returned by smp_fetch_base32(). The idea is to have per-source and
10253 * per-path counters. The result is a binary block from 8 to 20 bytes depending
10254 * on the source address length. The path hash is stored before the address so
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10255 * that in environments where IPv6 is insignificant, truncating the output to
10256 * 8 bytes would still work.
10257 */
10258static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10259smp_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]10260{
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10261 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10262 struct connection *cli_conn = objt_conn(smp->sess->origin);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10263
10264 if (!cli_conn)
10265 return 0;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10266
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10267 if (!smp_fetch_base32(args, smp, kw, private))
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10268 return 0;
10269
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10270 temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10271 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
Willy Tarreau5ad6e1d2014-07-15 21:34:06 +0200[diff] [blame]10272 temp->len += sizeof(unsigned int);
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10273
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10274 switch (cli_conn->addr.from.ss_family) {
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10275 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10276 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]10277 temp->len += 4;
10278 break;
10279 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10280 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]10281 temp->len += 16;
10282 break;
10283 default:
10284 return 0;
10285 }
10286
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10287 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10288 smp->data.type = SMP_T_BIN;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10289 return 1;
10290}
10291
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10292/* Extracts the query string, which comes after the question mark '?'. If no
10293 * question mark is found, nothing is returned. Otherwise it returns a sample
10294 * of type string carrying the whole query string.
10295 */
10296static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10297smp_fetch_query(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10298{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10299 struct http_txn *txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10300 char *ptr, *end;
10301
10302 CHECK_HTTP_MESSAGE_FIRST();
10303
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10304 txn = smp->strm->txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10305 ptr = txn->req.chn->buf->p + txn->req.sl.rq.u;
10306 end = ptr + txn->req.sl.rq.u_l;
10307
10308 /* look up the '?' */
10309 do {
10310 if (ptr == end)
10311 return 0;
10312 } while (*ptr++ != '?');
10313
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 = ptr;
10316 smp->data.u.str.len = end - ptr;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10317 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
10318 return 1;
10319}
10320
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10321static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10322smp_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]10323{
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10324 /* Note: hdr_idx.v cannot be NULL in this ACL because the ACL is tagged
10325 * as a layer7 ACL, which involves automatic allocation of hdr_idx.
10326 */
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10327
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10328 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10329
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10330 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10331 smp->data.u.sint = 1;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10332 return 1;
10333}
10334
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10335/* return a valid test if the current request is the first one on the connection */
10336static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10337smp_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]10338{
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10339 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10340 smp->data.u.sint = !(smp->strm->txn->flags & TX_NOT_FIRST);
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10341 return 1;
10342}
10343
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10344/* Accepts exactly 1 argument of type userlist */
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10345static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10346smp_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]10347{
10348
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10349 if (!args || args->type != ARGT_USR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10350 return 0;
10351
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10352 CHECK_HTTP_MESSAGE_FIRST();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10353
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10354 if (!get_http_auth(smp->strm))
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10355 return 0;
10356
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10357 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10358 smp->data.u.sint = check_user(args->data.usr, smp->strm->txn->auth.user,
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10359 smp->strm->txn->auth.pass);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10360 return 1;
10361}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10362
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10363/* Accepts exactly 1 argument of type userlist */
10364static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10365smp_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]10366{
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10367 if (!args || args->type != ARGT_USR)
10368 return 0;
10369
10370 CHECK_HTTP_MESSAGE_FIRST();
10371
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10372 if (!get_http_auth(smp->strm))
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10373 return 0;
10374
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10375 /* if the user does not belong to the userlist or has a wrong password,
10376 * report that it unconditionally does not match. Otherwise we return
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10377 * a string containing the username.
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10378 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10379 if (!check_user(args->data.usr, smp->strm->txn->auth.user,
10380 smp->strm->txn->auth.pass))
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10381 return 0;
10382
10383 /* pat_match_auth() will need the user list */
10384 smp->ctx.a[0] = args->data.usr;
10385
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10386 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10387 smp->flags = SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10388 smp->data.u.str.str = smp->strm->txn->auth.user;
10389 smp->data.u.str.len = strlen(smp->strm->txn->auth.user);
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10390
10391 return 1;
10392}
10393
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10394/* Try to find the next occurrence of a cookie name in a cookie header value.
10395 * The lookup begins at <hdr>. The pointer and size of the next occurrence of
10396 * the cookie value is returned into *value and *value_l, and the function
10397 * returns a pointer to the next pointer to search from if the value was found.
10398 * Otherwise if the cookie was not found, NULL is returned and neither value
10399 * nor value_l are touched. The input <hdr> string should first point to the
10400 * header's value, and the <hdr_end> pointer must point to the first character
10401 * not part of the value. <list> must be non-zero if value may represent a list
10402 * of values (cookie headers). This makes it faster to abort parsing when no
10403 * list is expected.
10404 */
David Carlier4686f792015-09-25 14:10:50 +0100[diff] [blame]10405char *
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10406extract_cookie_value(char *hdr, const char *hdr_end,
10407 char *cookie_name, size_t cookie_name_l, int list,
Willy Tarreau3fb818c2012-04-11 17:21:08 +0200[diff] [blame]10408 char **value, int *value_l)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10409{
10410 char *equal, *att_end, *att_beg, *val_beg, *val_end;
10411 char *next;
10412
10413 /* we search at least a cookie name followed by an equal, and more
10414 * generally something like this :
10415 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
10416 */
10417 for (att_beg = hdr; att_beg + cookie_name_l + 1 < hdr_end; att_beg = next + 1) {
10418 /* Iterate through all cookies on this line */
10419
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10420 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10421 att_beg++;
10422
10423 /* find att_end : this is the first character after the last non
10424 * space before the equal. It may be equal to hdr_end.
10425 */
10426 equal = att_end = att_beg;
10427
10428 while (equal < hdr_end) {
10429 if (*equal == '=' || *equal == ';' || (list && *equal == ','))
10430 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10431 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10432 continue;
10433 att_end = equal;
10434 }
10435
10436 /* here, <equal> points to '=', a delimitor or the end. <att_end>
10437 * is between <att_beg> and <equal>, both may be identical.
10438 */
10439
10440 /* look for end of cookie if there is an equal sign */
10441 if (equal < hdr_end && *equal == '=') {
10442 /* look for the beginning of the value */
10443 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10444 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10445 val_beg++;
10446
10447 /* find the end of the value, respecting quotes */
10448 next = find_cookie_value_end(val_beg, hdr_end);
10449
10450 /* make val_end point to the first white space or delimitor after the value */
10451 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10452 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10453 val_end--;
10454 } else {
10455 val_beg = val_end = next = equal;
10456 }
10457
10458 /* We have nothing to do with attributes beginning with '$'. However,
10459 * they will automatically be removed if a header before them is removed,
10460 * since they're supposed to be linked together.
10461 */
10462 if (*att_beg == '$')
10463 continue;
10464
10465 /* Ignore cookies with no equal sign */
10466 if (equal == next)
10467 continue;
10468
10469 /* Now we have the cookie name between att_beg and att_end, and
10470 * its value between val_beg and val_end.
10471 */
10472
10473 if (att_end - att_beg == cookie_name_l &&
10474 memcmp(att_beg, cookie_name, cookie_name_l) == 0) {
10475 /* let's return this value and indicate where to go on from */
10476 *value = val_beg;
10477 *value_l = val_end - val_beg;
10478 return next + 1;
10479 }
10480
10481 /* Set-Cookie headers only have the name in the first attr=value part */
10482 if (!list)
10483 break;
10484 }
10485
10486 return NULL;
10487}
10488
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10489/* Fetch a captured HTTP request header. The index is the position of
10490 * the "capture" option in the configuration file
10491 */
10492static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10493smp_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]10494{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10495 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10496 int idx;
10497
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10498 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10499 return 0;
10500
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10501 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10502
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10503 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]10504 return 0;
10505
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10506 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10507 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10508 smp->data.u.str.str = smp->strm->req_cap[idx];
10509 smp->data.u.str.len = strlen(smp->strm->req_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10510
10511 return 1;
10512}
10513
10514/* Fetch a captured HTTP response header. The index is the position of
10515 * the "capture" option in the configuration file
10516 */
10517static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10518smp_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]10519{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10520 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10521 int idx;
10522
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10523 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10524 return 0;
10525
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10526 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10527
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10528 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]10529 return 0;
10530
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10531 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10532 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10533 smp->data.u.str.str = smp->strm->res_cap[idx];
10534 smp->data.u.str.len = strlen(smp->strm->res_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10535
10536 return 1;
10537}
10538
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10539/* Extracts the METHOD in the HTTP request, the txn->uri should be filled before the call */
10540static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10541smp_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]10542{
10543 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10544 struct http_txn *txn = smp->strm->txn;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10545 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10546
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10547 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10548 return 0;
10549
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10550 ptr = txn->uri;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10551
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10552 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10553 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10554
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10555 temp = get_trash_chunk();
10556 temp->str = txn->uri;
10557 temp->len = ptr - txn->uri;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10558 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10559 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10560 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10561
10562 return 1;
10563
10564}
10565
10566/* Extracts the path in the HTTP request, the txn->uri should be filled before the call */
10567static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10568smp_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]10569{
10570 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10571 struct http_txn *txn = smp->strm->txn;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10572 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10573
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10574 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10575 return 0;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10576
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10577 ptr = txn->uri;
10578
10579 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10580 ptr++;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10581
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10582 if (!*ptr)
10583 return 0;
10584
10585 ptr++; /* skip the space */
10586
10587 temp = get_trash_chunk();
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10588 ptr = temp->str = http_get_path_from_string(ptr);
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10589 if (!ptr)
10590 return 0;
10591 while (*ptr != ' ' && *ptr != '\0') /* find space after URI */
10592 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10593
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10594 smp->data.u.str = *temp;
10595 smp->data.u.str.len = ptr - temp->str;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10596 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10597 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10598
10599 return 1;
10600}
10601
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10602/* Retrieves the HTTP version from the request (either 1.0 or 1.1) and emits it
10603 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10604 */
10605static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10606smp_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]10607{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10608 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10609
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10610 if (!txn || txn->req.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10611 return 0;
10612
10613 if (txn->req.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10614 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10615 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10616 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10617
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10618 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10619 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10620 smp->flags = SMP_F_CONST;
10621 return 1;
10622
10623}
10624
10625/* Retrieves the HTTP version from the response (either 1.0 or 1.1) and emits it
10626 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10627 */
10628static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10629smp_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]10630{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10631 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10632
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10633 if (!txn || txn->rsp.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10634 return 0;
10635
10636 if (txn->rsp.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10637 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10638 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10639 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10640
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10641 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10642 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10643 smp->flags = SMP_F_CONST;
10644 return 1;
10645
10646}
10647
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10648
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10649/* Iterate over all cookies present in a message. The context is stored in
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10650 * 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]10651 * 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]10652 * the direction, multiple cookies may be parsed on the same line or not.
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10653 * 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]10654 * Accepts exactly 1 argument of type string. If the input options indicate
10655 * that no iterating is desired, then only last value is fetched if any.
William Lallemand07c8b242014-05-02 17:11:07 +0200[diff] [blame]10656 * The returned sample is of type CSTR. Can be used to parse cookies in other
10657 * files.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10658 */
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10659int 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]10660{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10661 struct http_txn *txn;
10662 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10663 struct hdr_ctx *ctx = smp->ctx.a[2];
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10664 const struct http_msg *msg;
10665 const char *hdr_name;
10666 int hdr_name_len;
10667 char *sol;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10668 int occ = 0;
10669 int found = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10670
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10671 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10672 return 0;
10673
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10674 if (!ctx) {
10675 /* first call */
10676 ctx = &static_hdr_ctx;
10677 ctx->idx = 0;
10678 smp->ctx.a[2] = ctx;
10679 }
10680
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10681 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10682
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10683 txn = smp->strm->txn;
10684 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10685
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10686 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10687 msg = &txn->req;
10688 hdr_name = "Cookie";
10689 hdr_name_len = 6;
10690 } else {
10691 msg = &txn->rsp;
10692 hdr_name = "Set-Cookie";
10693 hdr_name_len = 10;
10694 }
10695
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10696 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10697 /* no explicit occurrence and single fetch => last cookie by default */
10698 occ = -1;
10699
10700 /* OK so basically here, either we want only one value and it's the
10701 * last one, or we want to iterate over all of them and we fetch the
10702 * next one.
10703 */
10704
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10705 sol = msg->chn->buf->p;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10706 if (!(smp->flags & SMP_F_NOT_LAST)) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10707 /* search for the header from the beginning, we must first initialize
10708 * the search parameters.
10709 */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10710 smp->ctx.a[0] = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10711 ctx->idx = 0;
10712 }
10713
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10714 smp->flags |= SMP_F_VOL_HDR;
10715
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10716 while (1) {
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10717 /* Note: smp->ctx.a[0] == NULL every time we need to fetch a new header */
10718 if (!smp->ctx.a[0]) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10719 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, ctx))
10720 goto out;
10721
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10722 if (ctx->vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10723 continue;
10724
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10725 smp->ctx.a[0] = ctx->line + ctx->val;
10726 smp->ctx.a[1] = smp->ctx.a[0] + ctx->vlen;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10727 }
10728
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;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10731 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]10732 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10733 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10734 &smp->data.u.str.str,
10735 &smp->data.u.str.len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10736 if (smp->ctx.a[0]) {
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10737 found = 1;
10738 if (occ >= 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10739 /* one value was returned into smp->data.u.str.{str,len} */
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10740 smp->flags |= SMP_F_NOT_LAST;
10741 return 1;
10742 }
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10743 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10744 /* if we're looking for last occurrence, let's loop */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10745 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10746 /* all cookie headers and values were scanned. If we're looking for the
10747 * last occurrence, we may return it now.
10748 */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10749 out:
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10750 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10751 return found;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10752}
10753
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10754/* Iterate over all cookies present in a request to count how many occurrences
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10755 * 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]10756 * multiple cookies may be parsed on the same line. The returned sample is of
10757 * type UINT. Accepts exactly 1 argument of type string.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10758 */
10759static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10760smp_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]10761{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10762 struct http_txn *txn;
10763 struct hdr_idx *idx;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10764 struct hdr_ctx ctx;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10765 const struct http_msg *msg;
10766 const char *hdr_name;
10767 int hdr_name_len;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10768 int cnt;
10769 char *val_beg, *val_end;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10770 char *sol;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10771
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10772 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10773 return 0;
10774
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10775 CHECK_HTTP_MESSAGE_FIRST();
10776
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10777 txn = smp->strm->txn;
10778 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10779
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10780 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10781 msg = &txn->req;
10782 hdr_name = "Cookie";
10783 hdr_name_len = 6;
10784 } else {
10785 msg = &txn->rsp;
10786 hdr_name = "Set-Cookie";
10787 hdr_name_len = 10;
10788 }
10789
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10790 sol = msg->chn->buf->p;
Willy Tarreau46787ed2012-04-11 17:28:40 +0200[diff] [blame]10791 val_end = val_beg = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10792 ctx.idx = 0;
10793 cnt = 0;
10794
10795 while (1) {
10796 /* Note: val_beg == NULL every time we need to fetch a new header */
10797 if (!val_beg) {
10798 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, &ctx))
10799 break;
10800
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10801 if (ctx.vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10802 continue;
10803
10804 val_beg = ctx.line + ctx.val;
10805 val_end = val_beg + ctx.vlen;
10806 }
10807
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10808 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10809 smp->flags |= SMP_F_CONST;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10810 while ((val_beg = extract_cookie_value(val_beg, val_end,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10811 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10812 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10813 &smp->data.u.str.str,
10814 &smp->data.u.str.len))) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10815 cnt++;
10816 }
10817 }
10818
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10819 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10820 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10821 smp->flags |= SMP_F_VOL_HDR;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10822 return 1;
10823}
10824
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]10825/* Fetch an cookie's integer value. The integer value is returned. It
10826 * takes a mandatory argument of type string. It relies on smp_fetch_cookie().
10827 */
10828static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10829smp_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]10830{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10831 int ret = smp_fetch_cookie(args, smp, kw, private);
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]10832
10833 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10834 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10835 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]10836 }
10837
10838 return ret;
10839}
10840
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10841/************************************************************************/
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]10842/* The code below is dedicated to sample fetches */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]10843/************************************************************************/
10844
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10845/*
10846 * Given a path string and its length, find the position of beginning of the
10847 * query string. Returns NULL if no query string is found in the path.
10848 *
10849 * Example: if path = "/foo/bar/fubar?yo=mama;ye=daddy", and n = 22:
10850 *
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10851 * find_query_string(path, n, '?') points to "yo=mama;ye=daddy" string.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10852 */
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10853static inline char *find_param_list(char *path, size_t path_l, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10854{
10855 char *p;
Emeric Brun485479d2010-09-23 18:02:19 +0200[diff] [blame]10856
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10857 p = memchr(path, delim, path_l);
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10858 return p ? p + 1 : NULL;
10859}
10860
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10861static inline int is_param_delimiter(char c, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10862{
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10863 return c == '&' || c == ';' || c == delim;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10864}
10865
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10866/* after increasing a pointer value, it can exceed the first buffer
10867 * size. This function transform the value of <ptr> according with
10868 * the expected position. <chunks> is an array of the one or two
10869 * avalaible chunks. The first value is the start of the first chunk,
10870 * the second value if the end+1 of the first chunks. The third value
10871 * is NULL or the start of the second chunk and the fourth value is
10872 * the end+1 of the second chunk. The function returns 1 if does a
10873 * wrap, else returns 0.
10874 */
10875static inline int fix_pointer_if_wrap(const char **chunks, const char **ptr)
10876{
10877 if (*ptr < chunks[1])
10878 return 0;
10879 if (!chunks[2])
10880 return 0;
10881 *ptr = chunks[2] + ( *ptr - chunks[1] );
10882 return 1;
10883}
10884
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10885/*
10886 * Given a url parameter, find the starting position of the first occurence,
10887 * or NULL if the parameter is not found.
10888 *
10889 * Example: if query_string is "yo=mama;ye=daddy" and url_param_name is "ye",
10890 * the function will return query_string+8.
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10891 *
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10892 * Warning: this function returns a pointer that can point to the first chunk
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10893 * or the second chunk. The caller must be check the position before using the
10894 * result.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10895 */
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10896static const char *
10897find_url_param_pos(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10898 const char* url_param_name, size_t url_param_name_l,
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10899 char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10900{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10901 const char *pos, *last, *equal;
10902 const char **bufs = chunks;
10903 int l1, l2;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10904
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10905
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10906 pos = bufs[0];
10907 last = bufs[1];
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10908 while (pos < last) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10909 /* Check the equal. */
10910 equal = pos + url_param_name_l;
10911 if (fix_pointer_if_wrap(chunks, &equal)) {
10912 if (equal >= chunks[3])
10913 return NULL;
10914 } else {
10915 if (equal >= chunks[1])
10916 return NULL;
10917 }
10918 if (*equal == '=') {
10919 if (pos + url_param_name_l > last) {
10920 /* process wrap case, we detect a wrap. In this case, the
10921 * comparison is performed in two parts.
10922 */
10923
10924 /* This is the end, we dont have any other chunk. */
10925 if (bufs != chunks || !bufs[2])
10926 return NULL;
10927
10928 /* Compute the length of each part of the comparison. */
10929 l1 = last - pos;
10930 l2 = url_param_name_l - l1;
10931
10932 /* The second buffer is too short to contain the compared string. */
10933 if (bufs[2] + l2 > bufs[3])
10934 return NULL;
10935
10936 if (memcmp(pos, url_param_name, l1) == 0 &&
10937 memcmp(bufs[2], url_param_name+l1, l2) == 0)
10938 return pos;
10939
10940 /* Perform wrapping and jump the string who fail the comparison. */
10941 bufs += 2;
10942 pos = bufs[0] + l2;
10943 last = bufs[1];
10944
10945 } else {
10946 /* process a simple comparison. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10947 if (memcmp(pos, url_param_name, url_param_name_l) == 0)
10948 return pos;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10949 pos += url_param_name_l + 1;
10950 if (fix_pointer_if_wrap(chunks, &pos))
10951 last = bufs[2];
10952 }
10953 }
10954
10955 while (1) {
10956 /* Look for the next delimiter. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10957 while (pos < last && !is_param_delimiter(*pos, delim))
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10958 pos++;
10959 if (pos < last)
10960 break;
10961 /* process buffer wrapping. */
10962 if (bufs != chunks || !bufs[2])
10963 return NULL;
10964 bufs += 2;
10965 pos = bufs[0];
10966 last = bufs[1];
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10967 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10968 pos++;
10969 }
10970 return NULL;
10971}
10972
10973/*
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]10974 * Given a url parameter name and a query string, find the next value.
10975 * An empty url_param_name matches the first available parameter.
10976 * If the parameter is found, 1 is returned and *vstart / *vend are updated to
10977 * respectively provide a pointer to the value and its end.
10978 * Otherwise, 0 is returned and vstart/vend are not modified.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10979 */
10980static int
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10981find_next_url_param(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10982 const char* url_param_name, size_t url_param_name_l,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10983 const char **vstart, const char **vend, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10984{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10985 const char *arg_start, *qs_end;
10986 const char *value_start, *value_end;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10987
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10988 arg_start = chunks[0];
10989 qs_end = chunks[1];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10990 if (url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10991 /* Looks for an argument name. */
10992 arg_start = find_url_param_pos(chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10993 url_param_name, url_param_name_l,
10994 delim);
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10995 /* Check for wrapping. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10996 if (arg_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10997 qs_end = chunks[3];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10998 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10999 if (!arg_start)
11000 return 0;
11001
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11002 if (!url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11003 while (1) {
11004 /* looks for the first argument. */
11005 value_start = memchr(arg_start, '=', qs_end - arg_start);
11006 if (!value_start) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11007 /* Check for wrapping. */
11008 if (arg_start >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11009 arg_start < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11010 chunks[2]) {
11011 arg_start = chunks[2];
11012 qs_end = chunks[3];
11013 continue;
11014 }
11015 return 0;
11016 }
11017 break;
11018 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11019 value_start++;
11020 }
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11021 else {
11022 /* Jump the argument length. */
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11023 value_start = arg_start + url_param_name_l + 1;
11024
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11025 /* Check for pointer wrapping. */
11026 if (fix_pointer_if_wrap(chunks, &value_start)) {
11027 /* Update the end pointer. */
11028 qs_end = chunks[3];
11029
11030 /* Check for overflow. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11031 if (value_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11032 return 0;
11033 }
11034 }
11035
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11036 value_end = value_start;
11037
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11038 while (1) {
11039 while ((value_end < qs_end) && !is_param_delimiter(*value_end, delim))
11040 value_end++;
11041 if (value_end < qs_end)
11042 break;
11043 /* process buffer wrapping. */
11044 if (value_end >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11045 value_end < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11046 chunks[2]) {
11047 value_end = chunks[2];
11048 qs_end = chunks[3];
11049 continue;
11050 }
11051 break;
11052 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11053
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11054 *vstart = value_start;
11055 *vend = value_end;
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11056 return 1;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11057}
11058
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11059/* This scans a URL-encoded query string. It takes an optionally wrapping
11060 * string whose first contigous chunk has its beginning in ctx->a[0] and end
11061 * in ctx->a[1], and the optional second part in (ctx->a[2]..ctx->a[3]). The
11062 * pointers are updated for next iteration before leaving.
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11063 */
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11064static int
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11065smp_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]11066{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11067 const char *vstart, *vend;
11068 struct chunk *temp;
11069 const char **chunks = (const char **)smp->ctx.a;
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11070
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11071 if (!find_next_url_param(chunks,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11072 name, name_len,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11073 &vstart, &vend,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11074 delim))
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11075 return 0;
11076
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11077 /* Create sample. If the value is contiguous, return the pointer as CONST,
11078 * if the value is wrapped, copy-it in a buffer.
11079 */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11080 smp->data.type = SMP_T_STR;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11081 if (chunks[2] &&
11082 vstart >= chunks[0] && vstart <= chunks[1] &&
11083 vend >= chunks[2] && vend <= chunks[3]) {
11084 /* Wrapped case. */
11085 temp = get_trash_chunk();
11086 memcpy(temp->str, vstart, chunks[1] - vstart);
11087 memcpy(temp->str + ( chunks[1] - vstart ), chunks[2], vend - chunks[2]);
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11088 smp->data.u.str.str = temp->str;
11089 smp->data.u.str.len = ( chunks[1] - vstart ) + ( vend - chunks[2] );
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11090 } else {
11091 /* Contiguous case. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11092 smp->data.u.str.str = (char *)vstart;
11093 smp->data.u.str.len = vend - vstart;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11094 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
11095 }
11096
11097 /* Update context, check wrapping. */
11098 chunks[0] = vend;
11099 if (chunks[2] && vend >= chunks[2] && vend <= chunks[3]) {
11100 chunks[1] = chunks[3];
11101 chunks[2] = NULL;
11102 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11103
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11104 if (chunks[0] < chunks[1])
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11105 smp->flags |= SMP_F_NOT_LAST;
11106
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11107 return 1;
11108}
11109
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11110/* This function iterates over each parameter of the query string. It uses
11111 * 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]11112 * parameter. Since it uses smp_fetch_param(), ctx->a[2..3] are both NULL.
11113 * An optional parameter name is passed in args[0], otherwise any parameter is
11114 * considered. It supports an optional delimiter argument for the beginning of
11115 * the string in args[1], which defaults to "?".
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11116 */
11117static int
11118smp_fetch_url_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11119{
11120 struct http_msg *msg;
11121 char delim = '?';
11122 const char *name;
11123 int name_len;
11124
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11125 if (!args ||
11126 (args[0].type && args[0].type != ARGT_STR) ||
11127 (args[1].type && args[1].type != ARGT_STR))
11128 return 0;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11129
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11130 name = "";
11131 name_len = 0;
11132 if (args->type == ARGT_STR) {
11133 name = args->data.str.str;
11134 name_len = args->data.str.len;
11135 }
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11136
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11137 if (args[1].type)
11138 delim = *args[1].data.str.str;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11139
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11140 if (!smp->ctx.a[0]) { // first call, find the query string
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11141 CHECK_HTTP_MESSAGE_FIRST();
11142
11143 msg = &smp->strm->txn->req;
11144
11145 smp->ctx.a[0] = find_param_list(msg->chn->buf->p + msg->sl.rq.u,
11146 msg->sl.rq.u_l, delim);
11147 if (!smp->ctx.a[0])
11148 return 0;
11149
11150 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]11151
11152 /* Assume that the context is filled with NULL pointer
11153 * before the first call.
11154 * smp->ctx.a[2] = NULL;
11155 * smp->ctx.a[3] = NULL;
11156 */
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11157 }
11158
11159 return smp_fetch_param(delim, name, name_len, args, smp, kw, private);
11160}
11161
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11162/* This function iterates over each parameter of the body. This requires
11163 * that the body has been waited for using http-buffer-request. It uses
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11164 * ctx->a[0] and ctx->a[1] to store the beginning and end of the first
11165 * contigous part of the body, and optionally ctx->a[2..3] to reference the
11166 * optional second part if the body wraps at the end of the buffer. An optional
11167 * parameter name is passed in args[0], otherwise any parameter is considered.
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11168 */
11169static int
11170smp_fetch_body_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11171{
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11172 struct http_msg *msg;
11173 unsigned long len;
11174 unsigned long block1;
11175 char *body;
11176 const char *name;
11177 int name_len;
11178
11179 if (!args || (args[0].type && args[0].type != ARGT_STR))
11180 return 0;
11181
11182 name = "";
11183 name_len = 0;
11184 if (args[0].type == ARGT_STR) {
11185 name = args[0].data.str.str;
11186 name_len = args[0].data.str.len;
11187 }
11188
11189 if (!smp->ctx.a[0]) { // first call, find the query string
11190 CHECK_HTTP_MESSAGE_FIRST();
11191
11192 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11193 msg = &smp->strm->txn->req;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11194 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11195 msg = &smp->strm->txn->rsp;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11196
11197 len = http_body_bytes(msg);
11198 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
11199
11200 block1 = len;
11201 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
11202 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
11203
11204 if (block1 == len) {
11205 /* buffer is not wrapped (or empty) */
11206 smp->ctx.a[0] = body;
11207 smp->ctx.a[1] = body + len;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11208
11209 /* Assume that the context is filled with NULL pointer
11210 * before the first call.
11211 * smp->ctx.a[2] = NULL;
11212 * smp->ctx.a[3] = NULL;
11213 */
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11214 }
11215 else {
11216 /* buffer is wrapped, we need to defragment it */
11217 smp->ctx.a[0] = body;
11218 smp->ctx.a[1] = body + block1;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11219 smp->ctx.a[2] = msg->chn->buf->data;
11220 smp->ctx.a[3] = msg->chn->buf->data + ( len - block1 );
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11221 }
11222 }
11223 return smp_fetch_param('&', name, name_len, args, smp, kw, private);
11224}
11225
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11226/* Return the signed integer value for the specified url parameter (see url_param
11227 * above).
11228 */
11229static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11230smp_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]11231{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11232 int ret = smp_fetch_url_param(args, smp, kw, private);
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11233
11234 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11235 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11236 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]11237 }
11238
11239 return ret;
11240}
11241
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11242/* This produces a 32-bit hash of the concatenation of the first occurrence of
11243 * the Host header followed by the path component if it begins with a slash ('/').
11244 * This means that '*' will not be added, resulting in exactly the first Host
11245 * entry. If no Host header is found, then the path is used. The resulting value
11246 * is hashed using the url hash followed by a full avalanche hash and provides a
11247 * 32-bit integer value. This fetch is useful for tracking per-URL activity on
11248 * high-traffic sites without having to store whole paths.
11249 * this differs from the base32 functions in that it includes the url parameters
11250 * as well as the path
11251 */
11252static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11253smp_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]11254{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11255 struct http_txn *txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11256 struct hdr_ctx ctx;
11257 unsigned int hash = 0;
11258 char *ptr, *beg, *end;
11259 int len;
11260
11261 CHECK_HTTP_MESSAGE_FIRST();
11262
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11263 txn = smp->strm->txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11264 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11265 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]11266 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
11267 ptr = ctx.line + ctx.val;
11268 len = ctx.vlen;
11269 while (len--)
11270 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
11271 }
11272
11273 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11274 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]11275 beg = http_get_path(txn);
11276 if (!beg)
11277 beg = end;
11278
11279 for (ptr = beg; ptr < end ; ptr++);
11280
11281 if (beg < ptr && *beg == '/') {
11282 while (beg < ptr)
11283 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
11284 }
11285 hash = full_hash(hash);
11286
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11287 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11288 smp->data.u.sint = hash;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11289 smp->flags = SMP_F_VOL_1ST;
11290 return 1;
11291}
11292
11293/* This concatenates the source address with the 32-bit hash of the Host and
11294 * URL as returned by smp_fetch_base32(). The idea is to have per-source and
11295 * per-url counters. The result is a binary block from 8 to 20 bytes depending
11296 * on the source address length. The URL hash is stored before the address so
11297 * that in environments where IPv6 is insignificant, truncating the output to
11298 * 8 bytes would still work.
11299 */
11300static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11301smp_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]11302{
11303 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11304 struct connection *cli_conn = objt_conn(smp->sess->origin);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11305
Dragan Dosendb5af612016-06-16 11:23:01 +0200[diff] [blame]11306 if (!cli_conn)
11307 return 0;
11308
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11309 if (!smp_fetch_url32(args, smp, kw, private))
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11310 return 0;
11311
11312 temp = get_trash_chunk();
Dragan Dosene5f41332016-06-16 11:08:08 +0200[diff] [blame]11313 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
11314 temp->len += sizeof(unsigned int);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11315
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11316 switch (cli_conn->addr.from.ss_family) {
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11317 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11318 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]11319 temp->len += 4;
11320 break;
11321 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11322 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]11323 temp->len += 16;
11324 break;
11325 default:
11326 return 0;
11327 }
11328
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11329 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11330 smp->data.type = SMP_T_BIN;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11331 return 1;
11332}
11333
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11334/* This function is used to validate the arguments passed to any "hdr" fetch
11335 * keyword. These keywords support an optional positive or negative occurrence
11336 * number. We must ensure that the number is greater than -MAX_HDR_HISTORY. It
11337 * is assumed that the types are already the correct ones. Returns 0 on error,
11338 * non-zero if OK. If <err> is not NULL, it will be filled with a pointer to an
11339 * error message in case of error, that the caller is responsible for freeing.
11340 * The initial location must either be freeable or NULL.
11341 */
Thierry FOURNIER49f45af2014-12-08 19:50:43 +0100[diff] [blame]11342int val_hdr(struct arg *arg, char **err_msg)
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11343{
11344 if (arg && arg[1].type == ARGT_SINT && arg[1].data.sint < -MAX_HDR_HISTORY) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]11345 memprintf(err_msg, "header occurrence must be >= %d", -MAX_HDR_HISTORY);
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11346 return 0;
11347 }
11348 return 1;
11349}
11350
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11351/* takes an UINT value on input supposed to represent the time since EPOCH,
11352 * adds an optional offset found in args[0] and emits a string representing
11353 * the date in RFC-1123/5322 format.
11354 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11355static int sample_conv_http_date(const struct arg *args, struct sample *smp, void *private)
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11356{
Cyril Bontéf78d8962016-01-22 19:40:28 +0100[diff] [blame]11357 const char day[7][4] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11358 const char mon[12][4] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
11359 struct chunk *temp;
11360 struct tm *tm;
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11361 /* 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]11362 time_t curr_date = smp->data.u.sint & 0x007fffffffffffffLL;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11363
11364 /* add offset */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11365 if (args && (args[0].type == ARGT_SINT))
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11366 curr_date += args[0].data.sint;
11367
11368 tm = gmtime(&curr_date);
Thierry FOURNIERfac9ccf2015-07-08 00:15:20 +0200[diff] [blame]11369 if (!tm)
11370 return 0;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11371
11372 temp = get_trash_chunk();
11373 temp->len = snprintf(temp->str, temp->size - temp->len,
11374 "%s, %02d %s %04d %02d:%02d:%02d GMT",
11375 day[tm->tm_wday], tm->tm_mday, mon[tm->tm_mon], 1900+tm->tm_year,
11376 tm->tm_hour, tm->tm_min, tm->tm_sec);
11377
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11378 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11379 smp->data.type = SMP_T_STR;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11380 return 1;
11381}
11382
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11383/* Match language range with language tag. RFC2616 14.4:
11384 *
11385 * A language-range matches a language-tag if it exactly equals
11386 * the tag, or if it exactly equals a prefix of the tag such
11387 * that the first tag character following the prefix is "-".
11388 *
11389 * Return 1 if the strings match, else return 0.
11390 */
11391static inline int language_range_match(const char *range, int range_len,
11392 const char *tag, int tag_len)
11393{
11394 const char *end = range + range_len;
11395 const char *tend = tag + tag_len;
11396 while (range < end) {
11397 if (*range == '-' && tag == tend)
11398 return 1;
11399 if (*range != *tag || tag == tend)
11400 return 0;
11401 range++;
11402 tag++;
11403 }
11404 /* Return true only if the last char of the tag is matched. */
11405 return tag == tend;
11406}
11407
11408/* Arguments: The list of expected value, the number of parts returned and the separator */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11409static int sample_conv_q_prefered(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11410{
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11411 const char *al = smp->data.u.str.str;
11412 const char *end = al + smp->data.u.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11413 const char *token;
11414 int toklen;
11415 int qvalue;
11416 const char *str;
11417 const char *w;
11418 int best_q = 0;
11419
11420 /* Set the constant to the sample, because the output of the
11421 * function will be peek in the constant configuration string.
11422 */
11423 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11424 smp->data.u.str.size = 0;
11425 smp->data.u.str.str = "";
11426 smp->data.u.str.len = 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11427
11428 /* Parse the accept language */
11429 while (1) {
11430
11431 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11432 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11433 al++;
11434 if (al >= end)
11435 break;
11436
11437 /* Start of the fisrt word. */
11438 token = al;
11439
11440 /* Look for separator: isspace(), ',' or ';'. Next value if 0 length word. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11441 while (al < end && *al != ';' && *al != ',' && !isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11442 al++;
11443 if (al == token)
11444 goto expect_comma;
11445
11446 /* Length of the token. */
11447 toklen = al - token;
11448 qvalue = 1000;
11449
11450 /* Check if the token exists in the list. If the token not exists,
11451 * jump to the next token.
11452 */
11453 str = args[0].data.str.str;
11454 w = str;
11455 while (1) {
11456 if (*str == ';' || *str == '\0') {
11457 if (language_range_match(token, toklen, w, str-w))
11458 goto look_for_q;
11459 if (*str == '\0')
11460 goto expect_comma;
11461 w = str + 1;
11462 }
11463 str++;
11464 }
11465 goto expect_comma;
11466
11467look_for_q:
11468
11469 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11470 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11471 al++;
11472 if (al >= end)
11473 goto process_value;
11474
11475 /* If ',' is found, process the result */
11476 if (*al == ',')
11477 goto process_value;
11478
11479 /* If the character is different from ';', look
11480 * for the end of the header part in best effort.
11481 */
11482 if (*al != ';')
11483 goto expect_comma;
11484
11485 /* Assumes that the char is ';', now expect "q=". */
11486 al++;
11487
11488 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11489 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11490 al++;
11491 if (al >= end)
11492 goto process_value;
11493
11494 /* Expect 'q'. If no 'q', continue in best effort */
11495 if (*al != 'q')
11496 goto process_value;
11497 al++;
11498
11499 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11500 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11501 al++;
11502 if (al >= end)
11503 goto process_value;
11504
11505 /* Expect '='. If no '=', continue in best effort */
11506 if (*al != '=')
11507 goto process_value;
11508 al++;
11509
11510 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11511 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11512 al++;
11513 if (al >= end)
11514 goto process_value;
11515
11516 /* Parse the q value. */
11517 qvalue = parse_qvalue(al, &al);
11518
11519process_value:
11520
11521 /* If the new q value is the best q value, then store the associated
11522 * language in the response. If qvalue is the biggest value (1000),
11523 * break the process.
11524 */
11525 if (qvalue > best_q) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11526 smp->data.u.str.str = (char *)w;
11527 smp->data.u.str.len = str - w;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11528 if (qvalue >= 1000)
11529 break;
11530 best_q = qvalue;
11531 }
11532
11533expect_comma:
11534
11535 /* Expect comma or end. If the end is detected, quit the loop. */
11536 while (al < end && *al != ',')
11537 al++;
11538 if (al >= end)
11539 break;
11540
11541 /* Comma is found, jump it and restart the analyzer. */
11542 al++;
11543 }
11544
11545 /* Set default value if required. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11546 if (smp->data.u.str.len == 0 && args[1].type == ARGT_STR) {
11547 smp->data.u.str.str = args[1].data.str.str;
11548 smp->data.u.str.len = args[1].data.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11549 }
11550
11551 /* Return true only if a matching language was found. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11552 return smp->data.u.str.len != 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11553}
11554
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11555/* This fetch url-decode any input string. */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11556static int sample_conv_url_dec(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11557{
11558 /* If the constant flag is set or if not size is avalaible at
11559 * the end of the buffer, copy the string in other buffer
11560 * before decoding.
11561 */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11562 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]11563 struct chunk *str = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11564 memcpy(str->str, smp->data.u.str.str, smp->data.u.str.len);
11565 smp->data.u.str.str = str->str;
11566 smp->data.u.str.size = str->size;
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11567 smp->flags &= ~SMP_F_CONST;
11568 }
11569
11570 /* Add final \0 required by url_decode(), and convert the input string. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11571 smp->data.u.str.str[smp->data.u.str.len] = '\0';
11572 smp->data.u.str.len = url_decode(smp->data.u.str.str);
Christopher Fauleta2584792017-10-05 10:03:12 +0200[diff] [blame]11573 return (smp->data.u.str.len >= 0);
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11574}
11575
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11576static int smp_conv_req_capture(const struct arg *args, struct sample *smp, void *private)
11577{
11578 struct proxy *fe = strm_fe(smp->strm);
11579 int idx, i;
11580 struct cap_hdr *hdr;
11581 int len;
11582
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11583 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11584 return 0;
11585
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11586 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11587
11588 /* Check the availibity of the capture id. */
11589 if (idx > fe->nb_req_cap - 1)
11590 return 0;
11591
11592 /* Look for the original configuration. */
11593 for (hdr = fe->req_cap, i = fe->nb_req_cap - 1;
11594 hdr != NULL && i != idx ;
11595 i--, hdr = hdr->next);
11596 if (!hdr)
11597 return 0;
11598
11599 /* check for the memory allocation */
11600 if (smp->strm->req_cap[hdr->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]11601 smp->strm->req_cap[hdr->index] = pool_alloc(hdr->pool);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11602 if (smp->strm->req_cap[hdr->index] == NULL)
11603 return 0;
11604
11605 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11606 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11607 if (len > hdr->len)
11608 len = hdr->len;
11609
11610 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11611 memcpy(smp->strm->req_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11612 smp->strm->req_cap[idx][len] = '\0';
11613
11614 return 1;
11615}
11616
11617static int smp_conv_res_capture(const struct arg *args, struct sample *smp, void *private)
11618{
11619 struct proxy *fe = strm_fe(smp->strm);
11620 int idx, i;
11621 struct cap_hdr *hdr;
11622 int len;
11623
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11624 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11625 return 0;
11626
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11627 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11628
11629 /* Check the availibity of the capture id. */
11630 if (idx > fe->nb_rsp_cap - 1)
11631 return 0;
11632
11633 /* Look for the original configuration. */
11634 for (hdr = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
11635 hdr != NULL && i != idx ;
11636 i--, hdr = hdr->next);
11637 if (!hdr)
11638 return 0;
11639
11640 /* check for the memory allocation */
11641 if (smp->strm->res_cap[hdr->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]11642 smp->strm->res_cap[hdr->index] = pool_alloc(hdr->pool);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11643 if (smp->strm->res_cap[hdr->index] == NULL)
11644 return 0;
11645
11646 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11647 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11648 if (len > hdr->len)
11649 len = hdr->len;
11650
11651 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11652 memcpy(smp->strm->res_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11653 smp->strm->res_cap[idx][len] = '\0';
11654
11655 return 1;
11656}
11657
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11658/* This function executes one of the set-{method,path,query,uri} actions. It
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11659 * takes the string from the variable 'replace' with length 'len', then modifies
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11660 * the relevant part of the request line accordingly. Then it updates various
11661 * pointers to the next elements which were moved, and the total buffer length.
11662 * It finds the action to be performed in p[2], previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11663 * parse_set_req_line(). It returns 0 in case of success, -1 in case of internal
11664 * error, though this can be revisited when this code is finally exploited.
11665 *
11666 * 'action' can be '0' to replace method, '1' to replace path, '2' to replace
11667 * query string and 3 to replace uri.
11668 *
11669 * In query string case, the mark question '?' must be set at the start of the
11670 * string by the caller, event if the replacement query string is empty.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11671 */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11672int http_replace_req_line(int action, const char *replace, int len,
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11673 struct proxy *px, struct stream *s)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11674{
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11675 struct http_txn *txn = s->txn;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11676 char *cur_ptr, *cur_end;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11677 int offset = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11678 int delta;
11679
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11680 switch (action) {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11681 case 0: // method
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11682 cur_ptr = s->req.buf->p;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11683 cur_end = cur_ptr + txn->req.sl.rq.m_l;
11684
11685 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11686 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11687 txn->req.sl.rq.m_l += delta;
11688 txn->req.sl.rq.u += delta;
11689 txn->req.sl.rq.v += delta;
11690 break;
11691
11692 case 1: // path
11693 cur_ptr = http_get_path(txn);
11694 if (!cur_ptr)
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11695 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11696
11697 cur_end = cur_ptr;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11698 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]11699 cur_end++;
11700
11701 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11702 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11703 txn->req.sl.rq.u_l += delta;
11704 txn->req.sl.rq.v += delta;
11705 break;
11706
11707 case 2: // query
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11708 offset = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11709 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11710 cur_end = cur_ptr + txn->req.sl.rq.u_l;
11711 while (cur_ptr < cur_end && *cur_ptr != '?')
11712 cur_ptr++;
11713
11714 /* skip the question mark or indicate that we must insert it
11715 * (but only if the format string is not empty then).
11716 */
11717 if (cur_ptr < cur_end)
11718 cur_ptr++;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11719 else if (len > 1)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11720 offset = 0;
11721
11722 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11723 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11724 txn->req.sl.rq.u_l += delta;
11725 txn->req.sl.rq.v += delta;
11726 break;
11727
11728 case 3: // uri
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11729 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11730 cur_end = cur_ptr + txn->req.sl.rq.u_l;
11731
11732 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11733 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11734 txn->req.sl.rq.u_l += delta;
11735 txn->req.sl.rq.v += delta;
11736 break;
11737
11738 default:
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11739 return -1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11740 }
11741
11742 /* commit changes and adjust end of message */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11743 delta = buffer_replace2(s->req.buf, cur_ptr, cur_end, replace + offset, len - offset);
Thierry FOURNIER7f6192c2015-04-26 18:01:40 +0200[diff] [blame]11744 txn->req.sl.rq.l += delta;
11745 txn->hdr_idx.v[0].len += delta;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11746 http_msg_move_end(&txn->req, delta);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11747 return 0;
11748}
11749
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11750/* This function replace the HTTP status code and the associated message. The
11751 * variable <status> contains the new status code. This function never fails.
11752 */
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11753void http_set_status(unsigned int status, const char *reason, struct stream *s)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11754{
11755 struct http_txn *txn = s->txn;
11756 char *cur_ptr, *cur_end;
11757 int delta;
11758 char *res;
11759 int c_l;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11760 const char *msg = reason;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11761 int msg_len;
11762
11763 chunk_reset(&trash);
11764
11765 res = ultoa_o(status, trash.str, trash.size);
11766 c_l = res - trash.str;
11767
11768 trash.str[c_l] = ' ';
11769 trash.len = c_l + 1;
11770
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11771 /* Do we have a custom reason format string? */
11772 if (msg == NULL)
11773 msg = get_reason(status);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11774 msg_len = strlen(msg);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11775 strncpy(&trash.str[trash.len], msg, trash.size - trash.len);
11776 trash.len += msg_len;
11777
11778 cur_ptr = s->res.buf->p + txn->rsp.sl.st.c;
11779 cur_end = s->res.buf->p + txn->rsp.sl.st.r + txn->rsp.sl.st.r_l;
11780
11781 /* commit changes and adjust message */
11782 delta = buffer_replace2(s->res.buf, cur_ptr, cur_end, trash.str, trash.len);
11783
11784 /* adjust res line offsets and lengths */
11785 txn->rsp.sl.st.r += c_l - txn->rsp.sl.st.c_l;
11786 txn->rsp.sl.st.c_l = c_l;
11787 txn->rsp.sl.st.r_l = msg_len;
11788
11789 delta = trash.len - (cur_end - cur_ptr);
11790 txn->rsp.sl.st.l += delta;
11791 txn->hdr_idx.v[0].len += delta;
11792 http_msg_move_end(&txn->rsp, delta);
11793}
11794
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11795/* This function executes one of the set-{method,path,query,uri} actions. It
11796 * builds a string in the trash from the specified format string. It finds
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]11797 * the action to be performed in <http.action>, previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11798 * parse_set_req_line(). The replacement action is excuted by the function
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]11799 * http_action_set_req_line(). It always returns ACT_RET_CONT. If an error
11800 * occurs the action is canceled, but the rule processing continue.
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11801 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11802enum act_return http_action_set_req_line(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11803 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11804{
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]11805 struct chunk *replace;
11806 enum act_return ret = ACT_RET_ERR;
11807
11808 replace = alloc_trash_chunk();
11809 if (!replace)
11810 goto leave;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11811
11812 /* If we have to create a query string, prepare a '?'. */
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11813 if (rule->arg.http.action == 2)
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]11814 replace->str[replace->len++] = '?';
11815 replace->len += build_logline(s, replace->str + replace->len, replace->size - replace->len,
11816 &rule->arg.http.logfmt);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11817
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]11818 http_replace_req_line(rule->arg.http.action, replace->str, replace->len, px, s);
11819
11820 ret = ACT_RET_CONT;
11821
11822leave:
11823 free_trash_chunk(replace);
11824 return ret;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11825}
11826
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11827/* This function is just a compliant action wrapper for "set-status". */
11828enum act_return action_http_set_status(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11829 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11830{
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11831 http_set_status(rule->arg.status.code, rule->arg.status.reason, s);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11832 return ACT_RET_CONT;
11833}
11834
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11835/* parse an http-request action among :
11836 * set-method
11837 * set-path
11838 * set-query
11839 * set-uri
11840 *
11841 * All of them accept a single argument of type string representing a log-format.
11842 * The resulting rule makes use of arg->act.p[0..1] to store the log-format list
11843 * 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]11844 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11845 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11846enum act_parse_ret parse_set_req_line(const char **args, int *orig_arg, struct proxy *px,
11847 struct act_rule *rule, char **err)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11848{
11849 int cur_arg = *orig_arg;
11850
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]11851 rule->action = ACT_CUSTOM;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11852
11853 switch (args[0][4]) {
11854 case 'm' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11855 rule->arg.http.action = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11856 rule->action_ptr = http_action_set_req_line;
11857 break;
11858 case 'p' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11859 rule->arg.http.action = 1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11860 rule->action_ptr = http_action_set_req_line;
11861 break;
11862 case 'q' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11863 rule->arg.http.action = 2;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11864 rule->action_ptr = http_action_set_req_line;
11865 break;
11866 case 'u' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11867 rule->arg.http.action = 3;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11868 rule->action_ptr = http_action_set_req_line;
11869 break;
11870 default:
11871 memprintf(err, "internal error: unhandled action '%s'", args[0]);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11872 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11873 }
11874
11875 if (!*args[cur_arg] ||
11876 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
11877 memprintf(err, "expects exactly 1 argument <format>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11878 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11879 }
11880
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11881 LIST_INIT(&rule->arg.http.logfmt);
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]11882 px->conf.args.ctx = ARGC_HRQ;
11883 if (!parse_logformat_string(args[cur_arg], px, &rule->arg.http.logfmt, LOG_OPT_HTTP,
11884 (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]11885 return ACT_RET_PRS_ERR;
11886 }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11887
11888 (*orig_arg)++;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11889 return ACT_RET_PRS_OK;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11890}
11891
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11892/* parse set-status action:
11893 * This action accepts a single argument of type int representing
11894 * an http status code. It returns ACT_RET_PRS_OK on success,
11895 * ACT_RET_PRS_ERR on error.
11896 */
11897enum act_parse_ret parse_http_set_status(const char **args, int *orig_arg, struct proxy *px,
11898 struct act_rule *rule, char **err)
11899{
11900 char *error;
11901
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]11902 rule->action = ACT_CUSTOM;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11903 rule->action_ptr = action_http_set_status;
11904
11905 /* Check if an argument is available */
11906 if (!*args[*orig_arg]) {
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11907 memprintf(err, "expects 1 argument: <status>; or 3 arguments: <status> reason <fmt>");
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11908 return ACT_RET_PRS_ERR;
11909 }
11910
11911 /* convert status code as integer */
11912 rule->arg.status.code = strtol(args[*orig_arg], &error, 10);
11913 if (*error != '\0' || rule->arg.status.code < 100 || rule->arg.status.code > 999) {
11914 memprintf(err, "expects an integer status code between 100 and 999");
11915 return ACT_RET_PRS_ERR;
11916 }
11917
11918 (*orig_arg)++;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11919
11920 /* set custom reason string */
11921 rule->arg.status.reason = NULL; // If null, we use the default reason for the status code.
11922 if (*args[*orig_arg] && strcmp(args[*orig_arg], "reason") == 0 &&
11923 (*args[*orig_arg + 1] && strcmp(args[*orig_arg + 1], "if") != 0 && strcmp(args[*orig_arg + 1], "unless") != 0)) {
11924 (*orig_arg)++;
11925 rule->arg.status.reason = strdup(args[*orig_arg]);
11926 (*orig_arg)++;
11927 }
11928
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11929 return ACT_RET_PRS_OK;
11930}
11931
Willy Tarreau53275e82017-11-24 07:52:01 +0100[diff] [blame]11932/* This function executes the "reject" HTTP action. It clears the request and
11933 * response buffer without sending any response. It can be useful as an HTTP
11934 * alternative to the silent-drop action to defend against DoS attacks, and may
11935 * also be used with HTTP/2 to close a connection instead of just a stream.
11936 * The txn status is unchanged, indicating no response was sent. The termination
11937 * flags will indicate "PR". It always returns ACT_RET_STOP.
11938 */
11939enum act_return http_action_reject(struct act_rule *rule, struct proxy *px,
11940 struct session *sess, struct stream *s, int flags)
11941{
11942 channel_abort(&s->req);
11943 channel_abort(&s->res);
11944 s->req.analysers = 0;
11945 s->res.analysers = 0;
11946
11947 HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1);
11948 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1);
11949 if (sess->listener && sess->listener->counters)
11950 HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1);
11951
11952 if (!(s->flags & SF_ERR_MASK))
11953 s->flags |= SF_ERR_PRXCOND;
11954 if (!(s->flags & SF_FINST_MASK))
11955 s->flags |= SF_FINST_R;
11956
11957 return ACT_RET_CONT;
11958}
11959
11960/* parse the "reject" action:
11961 * This action takes no argument and returns ACT_RET_PRS_OK on success,
11962 * ACT_RET_PRS_ERR on error.
11963 */
11964enum act_parse_ret parse_http_action_reject(const char **args, int *orig_arg, struct proxy *px,
11965 struct act_rule *rule, char **err)
11966{
11967 rule->action = ACT_CUSTOM;
11968 rule->action_ptr = http_action_reject;
11969 return ACT_RET_PRS_OK;
11970}
11971
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11972/* This function executes the "capture" action. It executes a fetch expression,
11973 * turns the result into a string and puts it in a capture slot. It always
11974 * returns 1. If an error occurs the action is cancelled, but the rule
11975 * processing continues.
11976 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11977enum act_return http_action_req_capture(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11978 struct session *sess, struct stream *s, int flags)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11979{
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11980 struct sample *key;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]11981 struct cap_hdr *h = rule->arg.cap.hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11982 char **cap = s->req_cap;
11983 int len;
11984
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]11985 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]11986 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11987 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11988
11989 if (cap[h->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]11990 cap[h->index] = pool_alloc(h->pool);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11991
11992 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11993 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11994
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11995 len = key->data.u.str.len;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11996 if (len > h->len)
11997 len = h->len;
11998
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11999 memcpy(cap[h->index], key->data.u.str.str, len);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12000 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12001 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12002}
12003
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12004/* This function executes the "capture" action and store the result in a
12005 * capture slot if exists. It executes a fetch expression, turns the result
12006 * into a string and puts it in a capture slot. It always returns 1. If an
12007 * error occurs the action is cancelled, but the rule processing continues.
12008 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12009enum 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]12010 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12011{
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12012 struct sample *key;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12013 struct cap_hdr *h;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12014 char **cap = s->req_cap;
12015 struct proxy *fe = strm_fe(s);
12016 int len;
12017 int i;
12018
12019 /* Look for the original configuration. */
12020 for (h = fe->req_cap, i = fe->nb_req_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12021 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12022 i--, h = h->next);
12023 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12024 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12025
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12026 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]12027 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12028 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12029
12030 if (cap[h->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]12031 cap[h->index] = pool_alloc(h->pool);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12032
12033 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12034 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12035
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12036 len = key->data.u.str.len;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12037 if (len > h->len)
12038 len = h->len;
12039
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12040 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12041 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12042 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12043}
12044
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12045/* Check an "http-request capture" action.
12046 *
12047 * The function returns 1 in success case, otherwise, it returns 0 and err is
12048 * filled.
12049 */
12050int check_http_req_capture(struct act_rule *rule, struct proxy *px, char **err)
12051{
Christopher Fauletfd608dd2017-12-04 09:45:15 +0100[diff] [blame^]12052 if (rule->action_ptr != http_action_req_capture_by_id)
12053 return 1;
12054
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12055 if (rule->arg.capid.idx >= px->nb_req_cap) {
12056 memprintf(err, "unable to find capture id '%d' referenced by http-request capture rule",
12057 rule->arg.capid.idx);
12058 return 0;
12059 }
12060
12061 return 1;
12062}
12063
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12064/* parse an "http-request capture" action. It takes a single argument which is
12065 * a sample fetch expression. It stores the expression into arg->act.p[0] and
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12066 * the allocated hdr_cap struct or the preallocated "id" into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12067 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12068 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12069enum act_parse_ret parse_http_req_capture(const char **args, int *orig_arg, struct proxy *px,
12070 struct act_rule *rule, char **err)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12071{
12072 struct sample_expr *expr;
12073 struct cap_hdr *hdr;
12074 int cur_arg;
Willy Tarreau3986ac12015-05-08 16:13:42 +0200[diff] [blame]12075 int len = 0;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12076
12077 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12078 if (strcmp(args[cur_arg], "if") == 0 ||
12079 strcmp(args[cur_arg], "unless") == 0)
12080 break;
12081
12082 if (cur_arg < *orig_arg + 3) {
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12083 memprintf(err, "expects <expression> [ 'len' <length> | id <idx> ]");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12084 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12085 }
12086
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12087 cur_arg = *orig_arg;
12088 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12089 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12090 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12091
12092 if (!(expr->fetch->val & SMP_VAL_FE_HRQ_HDR)) {
12093 memprintf(err,
12094 "fetch method '%s' extracts information from '%s', none of which is available here",
12095 args[cur_arg-1], sample_src_names(expr->fetch->use));
12096 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12097 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12098 }
12099
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12100 if (!args[cur_arg] || !*args[cur_arg]) {
12101 memprintf(err, "expects 'len or 'id'");
12102 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12103 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12104 }
12105
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12106 if (strcmp(args[cur_arg], "len") == 0) {
12107 cur_arg++;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12108
12109 if (!(px->cap & PR_CAP_FE)) {
12110 memprintf(err, "proxy '%s' has no frontend capability", px->id);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12111 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12112 }
12113
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12114 px->conf.args.ctx = ARGC_CAP;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12115
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12116 if (!args[cur_arg]) {
12117 memprintf(err, "missing length value");
12118 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12119 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12120 }
12121 /* we copy the table name for now, it will be resolved later */
12122 len = atoi(args[cur_arg]);
12123 if (len <= 0) {
12124 memprintf(err, "length must be > 0");
12125 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12126 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12127 }
12128 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12129
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12130 if (!len) {
12131 memprintf(err, "a positive 'len' argument is mandatory");
12132 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12133 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12134 }
12135
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]12136 hdr = calloc(1, sizeof(*hdr));
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12137 hdr->next = px->req_cap;
12138 hdr->name = NULL; /* not a header capture */
12139 hdr->namelen = 0;
12140 hdr->len = len;
12141 hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED);
12142 hdr->index = px->nb_req_cap++;
12143
12144 px->req_cap = hdr;
12145 px->to_log |= LW_REQHDR;
12146
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12147 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12148 rule->action_ptr = http_action_req_capture;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12149 rule->check_ptr = check_http_req_capture;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12150 rule->arg.cap.expr = expr;
12151 rule->arg.cap.hdr = hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12152 }
12153
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12154 else if (strcmp(args[cur_arg], "id") == 0) {
12155 int id;
12156 char *error;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12157
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12158 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12159
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12160 if (!args[cur_arg]) {
12161 memprintf(err, "missing id value");
12162 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12163 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12164 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12165
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12166 id = strtol(args[cur_arg], &error, 10);
12167 if (*error != '\0') {
12168 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12169 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12170 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12171 }
12172 cur_arg++;
12173
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12174 px->conf.args.ctx = ARGC_CAP;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12175
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12176 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12177 rule->action_ptr = http_action_req_capture_by_id;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12178 rule->check_ptr = check_http_req_capture;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12179 rule->arg.capid.expr = expr;
12180 rule->arg.capid.idx = id;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12181 }
12182
12183 else {
12184 memprintf(err, "expects 'len' or 'id', found '%s'", args[cur_arg]);
12185 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12186 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12187 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12188
12189 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12190 return ACT_RET_PRS_OK;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12191}
12192
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12193/* This function executes the "capture" action and store the result in a
12194 * capture slot if exists. It executes a fetch expression, turns the result
12195 * into a string and puts it in a capture slot. It always returns 1. If an
12196 * error occurs the action is cancelled, but the rule processing continues.
12197 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12198enum 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]12199 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12200{
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12201 struct sample *key;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12202 struct cap_hdr *h;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12203 char **cap = s->res_cap;
12204 struct proxy *fe = strm_fe(s);
12205 int len;
12206 int i;
12207
12208 /* Look for the original configuration. */
12209 for (h = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12210 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12211 i--, h = h->next);
12212 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12213 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12214
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12215 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]12216 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12217 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12218
12219 if (cap[h->index] == NULL)
Willy Tarreaubafbe012017-11-24 17:34:44 +0100[diff] [blame]12220 cap[h->index] = pool_alloc(h->pool);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12221
12222 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12223 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12224
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12225 len = key->data.u.str.len;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12226 if (len > h->len)
12227 len = h->len;
12228
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12229 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12230 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12231 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12232}
12233
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12234/* Check an "http-response capture" action.
12235 *
12236 * The function returns 1 in success case, otherwise, it returns 0 and err is
12237 * filled.
12238 */
12239int check_http_res_capture(struct act_rule *rule, struct proxy *px, char **err)
12240{
Christopher Fauletfd608dd2017-12-04 09:45:15 +0100[diff] [blame^]12241 if (rule->action_ptr != http_action_res_capture_by_id)
12242 return 1;
12243
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12244 if (rule->arg.capid.idx >= px->nb_rsp_cap) {
12245 memprintf(err, "unable to find capture id '%d' referenced by http-response capture rule",
12246 rule->arg.capid.idx);
12247 return 0;
12248 }
12249
12250 return 1;
12251}
12252
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12253/* parse an "http-response capture" action. It takes a single argument which is
12254 * a sample fetch expression. It stores the expression into arg->act.p[0] and
12255 * the allocated hdr_cap struct od the preallocated id into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12256 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12257 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12258enum act_parse_ret parse_http_res_capture(const char **args, int *orig_arg, struct proxy *px,
12259 struct act_rule *rule, char **err)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12260{
12261 struct sample_expr *expr;
12262 int cur_arg;
12263 int id;
12264 char *error;
12265
12266 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12267 if (strcmp(args[cur_arg], "if") == 0 ||
12268 strcmp(args[cur_arg], "unless") == 0)
12269 break;
12270
12271 if (cur_arg < *orig_arg + 3) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12272 memprintf(err, "expects <expression> id <idx>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12273 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12274 }
12275
12276 cur_arg = *orig_arg;
12277 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12278 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12279 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12280
12281 if (!(expr->fetch->val & SMP_VAL_FE_HRS_HDR)) {
12282 memprintf(err,
12283 "fetch method '%s' extracts information from '%s', none of which is available here",
12284 args[cur_arg-1], sample_src_names(expr->fetch->use));
12285 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12286 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12287 }
12288
12289 if (!args[cur_arg] || !*args[cur_arg]) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12290 memprintf(err, "expects 'id'");
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12291 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12292 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12293 }
12294
12295 if (strcmp(args[cur_arg], "id") != 0) {
12296 memprintf(err, "expects 'id', found '%s'", args[cur_arg]);
12297 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12298 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12299 }
12300
12301 cur_arg++;
12302
12303 if (!args[cur_arg]) {
12304 memprintf(err, "missing id value");
12305 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12306 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12307 }
12308
12309 id = strtol(args[cur_arg], &error, 10);
12310 if (*error != '\0') {
12311 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12312 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12313 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12314 }
12315 cur_arg++;
12316
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12317 px->conf.args.ctx = ARGC_CAP;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12318
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12319 rule->action = ACT_CUSTOM;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12320 rule->action_ptr = http_action_res_capture_by_id;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12321 rule->check_ptr = check_http_res_capture;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12322 rule->arg.capid.expr = expr;
12323 rule->arg.capid.idx = id;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12324
12325 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12326 return ACT_RET_PRS_OK;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12327}
12328
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12329/*
12330 * Return the struct http_req_action_kw associated to a keyword.
12331 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12332struct action_kw *action_http_req_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12333{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12334 return action_lookup(&http_req_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12335}
12336
12337/*
12338 * Return the struct http_res_action_kw associated to a keyword.
12339 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12340struct action_kw *action_http_res_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12341{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12342 return action_lookup(&http_res_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12343}
12344
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12345
12346/* "show errors" handler for the CLI. Returns 0 if wants to continue, 1 to stop
12347 * now.
12348 */
12349static int cli_parse_show_errors(char **args, struct appctx *appctx, void *private)
12350{
12351 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
12352 return 1;
12353
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12354 if (*args[2]) {
12355 struct proxy *px;
12356
12357 px = proxy_find_by_name(args[2], 0, 0);
12358 if (px)
12359 appctx->ctx.errors.iid = px->uuid;
12360 else
12361 appctx->ctx.errors.iid = atoi(args[2]);
12362
12363 if (!appctx->ctx.errors.iid) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +0200[diff] [blame]12364 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12365 appctx->ctx.cli.msg = "No such proxy.\n";
12366 appctx->st0 = CLI_ST_PRINT;
12367 return 1;
12368 }
12369 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12370 else
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12371 appctx->ctx.errors.iid = -1; // dump all proxies
12372
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12373 appctx->ctx.errors.flag = 0;
12374 if (strcmp(args[3], "request") == 0)
12375 appctx->ctx.errors.flag |= 4; // ignore response
12376 else if (strcmp(args[3], "response") == 0)
12377 appctx->ctx.errors.flag |= 2; // ignore request
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12378 appctx->ctx.errors.px = NULL;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12379 return 0;
12380}
12381
12382/* This function dumps all captured errors onto the stream interface's
12383 * read buffer. It returns 0 if the output buffer is full and it needs
12384 * to be called again, otherwise non-zero.
12385 */
12386static int cli_io_handler_show_errors(struct appctx *appctx)
12387{
12388 struct stream_interface *si = appctx->owner;
12389 extern const char *monthname[12];
12390
12391 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
12392 return 1;
12393
12394 chunk_reset(&trash);
12395
12396 if (!appctx->ctx.errors.px) {
12397 /* the function had not been called yet, let's prepare the
12398 * buffer for a response.
12399 */
12400 struct tm tm;
12401
12402 get_localtime(date.tv_sec, &tm);
12403 chunk_appendf(&trash, "Total events captured on [%02d/%s/%04d:%02d:%02d:%02d.%03d] : %u\n",
12404 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12405 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(date.tv_usec/1000),
12406 error_snapshot_id);
12407
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12408 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12409 /* Socket buffer full. Let's try again later from the same point */
12410 si_applet_cant_put(si);
12411 return 0;
12412 }
12413
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100[diff] [blame]12414 appctx->ctx.errors.px = proxies_list;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12415 appctx->ctx.errors.bol = 0;
12416 appctx->ctx.errors.ptr = -1;
12417 }
12418
12419 /* we have two inner loops here, one for the proxy, the other one for
12420 * the buffer.
12421 */
12422 while (appctx->ctx.errors.px) {
12423 struct error_snapshot *es;
12424
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12425 if ((appctx->ctx.errors.flag & 1) == 0) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12426 es = &appctx->ctx.errors.px->invalid_req;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12427 if (appctx->ctx.errors.flag & 2) // skip req
12428 goto next;
12429 }
12430 else {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12431 es = &appctx->ctx.errors.px->invalid_rep;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12432 if (appctx->ctx.errors.flag & 4) // skip resp
12433 goto next;
12434 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12435
12436 if (!es->when.tv_sec)
12437 goto next;
12438
12439 if (appctx->ctx.errors.iid >= 0 &&
12440 appctx->ctx.errors.px->uuid != appctx->ctx.errors.iid &&
12441 es->oe->uuid != appctx->ctx.errors.iid)
12442 goto next;
12443
12444 if (appctx->ctx.errors.ptr < 0) {
12445 /* just print headers now */
12446
12447 char pn[INET6_ADDRSTRLEN];
12448 struct tm tm;
12449 int port;
12450
12451 get_localtime(es->when.tv_sec, &tm);
12452 chunk_appendf(&trash, " \n[%02d/%s/%04d:%02d:%02d:%02d.%03d]",
12453 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12454 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(es->when.tv_usec/1000));
12455
12456 switch (addr_to_str(&es->src, pn, sizeof(pn))) {
12457 case AF_INET:
12458 case AF_INET6:
12459 port = get_host_port(&es->src);
12460 break;
12461 default:
12462 port = 0;
12463 }
12464
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12465 switch (appctx->ctx.errors.flag & 1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12466 case 0:
12467 chunk_appendf(&trash,
12468 " frontend %s (#%d): invalid request\n"
12469 " backend %s (#%d)",
12470 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12471 (es->oe->cap & PR_CAP_BE) ? es->oe->id : "<NONE>",
12472 (es->oe->cap & PR_CAP_BE) ? es->oe->uuid : -1);
12473 break;
12474 case 1:
12475 chunk_appendf(&trash,
12476 " backend %s (#%d): invalid response\n"
12477 " frontend %s (#%d)",
12478 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12479 es->oe->id, es->oe->uuid);
12480 break;
12481 }
12482
12483 chunk_appendf(&trash,
12484 ", server %s (#%d), event #%u\n"
12485 " src %s:%d, session #%d, session flags 0x%08x\n"
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]12486 " HTTP msg state %s(%d), msg flags 0x%08x, tx flags 0x%08x\n"
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12487 " HTTP chunk len %lld bytes, HTTP body len %lld bytes\n"
12488 " buffer flags 0x%08x, out %d bytes, total %lld bytes\n"
12489 " pending %d bytes, wrapping at %d, error at position %d:\n \n",
12490 es->srv ? es->srv->id : "<NONE>", es->srv ? es->srv->puid : -1,
12491 es->ev_id,
12492 pn, port, es->sid, es->s_flags,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]12493 h1_msg_state_str(es->state), es->state, es->m_flags, es->t_flags,
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12494 es->m_clen, es->m_blen,
12495 es->b_flags, es->b_out, es->b_tot,
12496 es->len, es->b_wrap, es->pos);
12497
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12498 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12499 /* Socket buffer full. Let's try again later from the same point */
12500 si_applet_cant_put(si);
12501 return 0;
12502 }
12503 appctx->ctx.errors.ptr = 0;
12504 appctx->ctx.errors.sid = es->sid;
12505 }
12506
12507 if (appctx->ctx.errors.sid != es->sid) {
12508 /* the snapshot changed while we were dumping it */
12509 chunk_appendf(&trash,
12510 " WARNING! update detected on this snapshot, dump interrupted. Please re-check!\n");
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12511 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12512 si_applet_cant_put(si);
12513 return 0;
12514 }
12515 goto next;
12516 }
12517
12518 /* OK, ptr >= 0, so we have to dump the current line */
12519 while (es->buf && appctx->ctx.errors.ptr < es->len && appctx->ctx.errors.ptr < global.tune.bufsize) {
12520 int newptr;
12521 int newline;
12522
12523 newline = appctx->ctx.errors.bol;
12524 newptr = dump_text_line(&trash, es->buf, global.tune.bufsize, es->len, &newline, appctx->ctx.errors.ptr);
12525 if (newptr == appctx->ctx.errors.ptr)
12526 return 0;
12527
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12528 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12529 /* Socket buffer full. Let's try again later from the same point */
12530 si_applet_cant_put(si);
12531 return 0;
12532 }
12533 appctx->ctx.errors.ptr = newptr;
12534 appctx->ctx.errors.bol = newline;
12535 };
12536 next:
12537 appctx->ctx.errors.bol = 0;
12538 appctx->ctx.errors.ptr = -1;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12539 appctx->ctx.errors.flag ^= 1;
12540 if (!(appctx->ctx.errors.flag & 1))
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12541 appctx->ctx.errors.px = appctx->ctx.errors.px->next;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12542 }
12543
12544 /* dump complete */
12545 return 1;
12546}
12547
12548/* register cli keywords */
12549static struct cli_kw_list cli_kws = {{ },{
12550 { { "show", "errors", NULL },
12551 "show errors : report last request and response errors for each proxy",
12552 cli_parse_show_errors, cli_io_handler_show_errors, NULL,
12553 },
12554 {{},}
12555}};
12556
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12557/************************************************************************/
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12558/* All supported ACL keywords must be declared here. */
12559/************************************************************************/
12560
12561/* Note: must not be declared <const> as its list will be overwritten.
12562 * Please take care of keeping this list alphabetically sorted.
12563 */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12564static struct acl_kw_list acl_kws = {ILH, {
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12565 { "base", "base", PAT_MATCH_STR },
12566 { "base_beg", "base", PAT_MATCH_BEG },
12567 { "base_dir", "base", PAT_MATCH_DIR },
12568 { "base_dom", "base", PAT_MATCH_DOM },
12569 { "base_end", "base", PAT_MATCH_END },
12570 { "base_len", "base", PAT_MATCH_LEN },
12571 { "base_reg", "base", PAT_MATCH_REG },
12572 { "base_sub", "base", PAT_MATCH_SUB },
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]12573
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12574 { "cook", "req.cook", PAT_MATCH_STR },
12575 { "cook_beg", "req.cook", PAT_MATCH_BEG },
12576 { "cook_dir", "req.cook", PAT_MATCH_DIR },
12577 { "cook_dom", "req.cook", PAT_MATCH_DOM },
12578 { "cook_end", "req.cook", PAT_MATCH_END },
12579 { "cook_len", "req.cook", PAT_MATCH_LEN },
12580 { "cook_reg", "req.cook", PAT_MATCH_REG },
12581 { "cook_sub", "req.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12582
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12583 { "hdr", "req.hdr", PAT_MATCH_STR },
12584 { "hdr_beg", "req.hdr", PAT_MATCH_BEG },
12585 { "hdr_dir", "req.hdr", PAT_MATCH_DIR },
12586 { "hdr_dom", "req.hdr", PAT_MATCH_DOM },
12587 { "hdr_end", "req.hdr", PAT_MATCH_END },
12588 { "hdr_len", "req.hdr", PAT_MATCH_LEN },
12589 { "hdr_reg", "req.hdr", PAT_MATCH_REG },
12590 { "hdr_sub", "req.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12591
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12592 /* these two declarations uses strings with list storage (in place
12593 * of tree storage). The basic match is PAT_MATCH_STR, but the indexation
12594 * and delete functions are relative to the list management. The parse
12595 * and match method are related to the corresponding fetch methods. This
12596 * is very particular ACL declaration mode.
12597 */
12598 { "http_auth_group", NULL, PAT_MATCH_STR, NULL, pat_idx_list_str, pat_del_list_ptr, NULL, pat_match_auth },
12599 { "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]12600
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12601 { "path", "path", PAT_MATCH_STR },
12602 { "path_beg", "path", PAT_MATCH_BEG },
12603 { "path_dir", "path", PAT_MATCH_DIR },
12604 { "path_dom", "path", PAT_MATCH_DOM },
12605 { "path_end", "path", PAT_MATCH_END },
12606 { "path_len", "path", PAT_MATCH_LEN },
12607 { "path_reg", "path", PAT_MATCH_REG },
12608 { "path_sub", "path", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12609
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12610 { "req_ver", "req.ver", PAT_MATCH_STR },
12611 { "resp_ver", "res.ver", PAT_MATCH_STR },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12612
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12613 { "scook", "res.cook", PAT_MATCH_STR },
12614 { "scook_beg", "res.cook", PAT_MATCH_BEG },
12615 { "scook_dir", "res.cook", PAT_MATCH_DIR },
12616 { "scook_dom", "res.cook", PAT_MATCH_DOM },
12617 { "scook_end", "res.cook", PAT_MATCH_END },
12618 { "scook_len", "res.cook", PAT_MATCH_LEN },
12619 { "scook_reg", "res.cook", PAT_MATCH_REG },
12620 { "scook_sub", "res.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12621
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12622 { "shdr", "res.hdr", PAT_MATCH_STR },
12623 { "shdr_beg", "res.hdr", PAT_MATCH_BEG },
12624 { "shdr_dir", "res.hdr", PAT_MATCH_DIR },
12625 { "shdr_dom", "res.hdr", PAT_MATCH_DOM },
12626 { "shdr_end", "res.hdr", PAT_MATCH_END },
12627 { "shdr_len", "res.hdr", PAT_MATCH_LEN },
12628 { "shdr_reg", "res.hdr", PAT_MATCH_REG },
12629 { "shdr_sub", "res.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12630
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12631 { "url", "url", PAT_MATCH_STR },
12632 { "url_beg", "url", PAT_MATCH_BEG },
12633 { "url_dir", "url", PAT_MATCH_DIR },
12634 { "url_dom", "url", PAT_MATCH_DOM },
12635 { "url_end", "url", PAT_MATCH_END },
12636 { "url_len", "url", PAT_MATCH_LEN },
12637 { "url_reg", "url", PAT_MATCH_REG },
12638 { "url_sub", "url", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12639
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12640 { "urlp", "urlp", PAT_MATCH_STR },
12641 { "urlp_beg", "urlp", PAT_MATCH_BEG },
12642 { "urlp_dir", "urlp", PAT_MATCH_DIR },
12643 { "urlp_dom", "urlp", PAT_MATCH_DOM },
12644 { "urlp_end", "urlp", PAT_MATCH_END },
12645 { "urlp_len", "urlp", PAT_MATCH_LEN },
12646 { "urlp_reg", "urlp", PAT_MATCH_REG },
12647 { "urlp_sub", "urlp", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12648
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100[diff] [blame]12649 { /* END */ },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12650}};
12651
12652/************************************************************************/
12653/* All supported pattern keywords must be declared here. */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12654/************************************************************************/
12655/* Note: must not be declared <const> as its list will be overwritten */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12656static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12657 { "base", smp_fetch_base, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12658 { "base32", smp_fetch_base32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12659 { "base32+src", smp_fetch_base32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12660
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]12661 /* capture are allocated and are permanent in the stream */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12662 { "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]12663
12664 /* retrieve these captures from the HTTP logs */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12665 { "capture.req.method", smp_fetch_capture_req_method, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12666 { "capture.req.uri", smp_fetch_capture_req_uri, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12667 { "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]12668
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12669 { "capture.res.hdr", smp_fetch_capture_header_res, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRSHP },
12670 { "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]12671
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12672 /* cookie is valid in both directions (eg: for "stick ...") but cook*
12673 * are only here to match the ACL's name, are request-only and are used
12674 * for ACL compatibility only.
12675 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12676 { "cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12677 { "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]12678 { "cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12679 { "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]12680
12681 /* hdr is valid in both directions (eg: for "stick ...") but hdr_* are
12682 * only here to match the ACL's name, are request-only and are used for
12683 * ACL compatibility only.
12684 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12685 { "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]12686 { "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]12687 { "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]12688 { "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]12689
Willy Tarreau0a0daec2013-04-02 22:44:58 +0200[diff] [blame]12690 { "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]12691 { "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]12692 { "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]12693 { "method", smp_fetch_meth, 0, NULL, SMP_T_METH, SMP_USE_HRQHP },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12694 { "path", smp_fetch_path, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]12695 { "query", smp_fetch_query, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12696
12697 /* HTTP protocol on the request path */
12698 { "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]12699 { "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]12700
12701 /* HTTP version on the request path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12702 { "req.ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
12703 { "req_ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12704
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]12705 { "req.body", smp_fetch_body, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12706 { "req.body_len", smp_fetch_body_len, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
12707 { "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]12708 { "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]12709
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]12710 { "req.hdrs", smp_fetch_hdrs, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]12711 { "req.hdrs_bin", smp_fetch_hdrs_bin, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12712
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12713 /* HTTP version on the response path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12714 { "res.ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
12715 { "resp_ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12716
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12717 /* 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]12718 { "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]12719 { "req.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12720 { "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]12721
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12722 { "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]12723 { "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]12724 { "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]12725 { "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]12726 { "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]12727 { "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]12728 { "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]12729
12730 /* 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]12731 { "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]12732 { "res.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12733 { "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]12734
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12735 { "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]12736 { "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]12737 { "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]12738 { "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]12739 { "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]12740 { "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]12741 { "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]12742
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12743 /* scook is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12744 { "scook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12745 { "scook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12746 { "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]12747 { "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]12748
12749 /* shdr is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12750 { "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]12751 { "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]12752 { "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]12753 { "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]12754
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12755 { "status", smp_fetch_stcode, 0, NULL, SMP_T_SINT, SMP_USE_HRSHP },
Thierry Fournier0e00dca2016-04-07 15:47:40 +0200[diff] [blame]12756 { "unique-id", smp_fetch_uniqueid, 0, NULL, SMP_T_STR, SMP_SRC_L4SRV },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12757 { "url", smp_fetch_url, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12758 { "url32", smp_fetch_url32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]12759 { "url32+src", smp_fetch_url32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12760 { "url_ip", smp_fetch_url_ip, 0, NULL, SMP_T_IPV4, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12761 { "url_port", smp_fetch_url_port, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]12762 { "url_param", smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12763 { "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]12764 { "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]12765 { /* END */ },
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12766}};
12767
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12768
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12769/************************************************************************/
12770/* All supported converter keywords must be declared here. */
12771/************************************************************************/
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12772/* Note: must not be declared <const> as its list will be overwritten */
12773static struct sample_conv_kw_list sample_conv_kws = {ILH, {
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12774 { "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]12775 { "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]12776 { "capture-req", smp_conv_req_capture, ARG1(1,SINT), NULL, SMP_T_STR, SMP_T_STR},
12777 { "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]12778 { "url_dec", sample_conv_url_dec, 0, NULL, SMP_T_STR, SMP_T_STR},
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12779 { NULL, NULL, 0, 0, 0 },
12780}};
12781
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12782
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12783/************************************************************************/
12784/* All supported http-request action keywords must be declared here. */
12785/************************************************************************/
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12786struct action_kw_list http_req_actions = {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12787 .kw = {
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12788 { "capture", parse_http_req_capture },
Willy Tarreau53275e82017-11-24 07:52:01 +0100[diff] [blame]12789 { "reject", parse_http_action_reject },
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12790 { "set-method", parse_set_req_line },
12791 { "set-path", parse_set_req_line },
12792 { "set-query", parse_set_req_line },
12793 { "set-uri", parse_set_req_line },
Willy Tarreaucb703b02015-04-03 09:52:01 +0200[diff] [blame]12794 { NULL, NULL }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12795 }
12796};
12797
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12798struct action_kw_list http_res_actions = {
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12799 .kw = {
12800 { "capture", parse_http_res_capture },
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12801 { "set-status", parse_http_set_status },
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12802 { NULL, NULL }
12803 }
12804};
12805
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12806__attribute__((constructor))
12807static void __http_protocol_init(void)
12808{
12809 acl_register_keywords(&acl_kws);
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]12810 sample_register_fetches(&sample_fetch_keywords);
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12811 sample_register_convs(&sample_conv_kws);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12812 http_req_keywords_register(&http_req_actions);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12813 http_res_keywords_register(&http_res_actions);
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12814 cli_register_kw(&cli_kws);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12815}
12816
12817
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]12818/*
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]12819 * Local variables:
12820 * c-indent-level: 8
12821 * c-basic-offset: 8
12822 * End:
12823 */