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git01.mediatek.com / haproxy / ef8d0dcefdf00b043697df971533daf01290811a / . / src / proto_http.c
blob: 8d813d32afb9f3d8860e87c192c8cfcf0afcd960 [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 Lallemand9ed62032016-11-21 17:49:11 +0100[diff] [blame]45#include <types/stats.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]46
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]47#include <proto/acl.h>
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]48#include <proto/action.h>
Willy Tarreau61612d42012-04-19 18:42:05 +0200[diff] [blame]49#include <proto/arg.h>
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]50#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]51#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200[diff] [blame]52#include <proto/channel.h>
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]53#include <proto/checks.h>
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]54#include <proto/cli.h>
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]55#include <proto/compression.h>
William Lallemand9ed62032016-11-21 17:49:11 +0100[diff] [blame]56#include <proto/stats.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]57#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]58#include <proto/filters.h>
Willy Tarreau03fa5df2010-05-24 21:02:37 +0200[diff] [blame]59#include <proto/frontend.h>
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]60#include <proto/h1.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]61#include <proto/log.h>
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]62#include <proto/hdr_idx.h>
Thierry FOURNIERed66c292013-11-28 11:05:19 +0100[diff] [blame]63#include <proto/pattern.h>
Willy Tarreaub6866442008-07-14 23:54:42 +0200[diff] [blame]64#include <proto/proto_tcp.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]65#include <proto/proto_http.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +0100[diff] [blame]66#include <proto/proxy.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]67#include <proto/queue.h>
Willy Tarreaucd3b0942012-04-27 21:52:18 +0200[diff] [blame]68#include <proto/sample.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +0100[diff] [blame]69#include <proto/server.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]70#include <proto/stream.h>
Willy Tarreaucff64112008-11-03 06:26:53 +0100[diff] [blame]71#include <proto/stream_interface.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]72#include <proto/task.h>
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]73#include <proto/pattern.h>
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]74#include <proto/vars.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]75
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]76const char HTTP_100[] =
77 "HTTP/1.1 100 Continue\r\n\r\n";
78
79const struct chunk http_100_chunk = {
80 .str = (char *)&HTTP_100,
81 .len = sizeof(HTTP_100)-1
82};
83
Willy Tarreaua9679ac2010-01-03 17:32:57 +0100[diff] [blame]84/* Warning: no "connection" header is provided with the 3xx messages below */
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200[diff] [blame]85const char *HTTP_301 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]86 "HTTP/1.1 301 Moved Permanently\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]87 "Content-length: 0\r\n"
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200[diff] [blame]88 "Location: "; /* not terminated since it will be concatenated with the URL */
89
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]90const char *HTTP_302 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]91 "HTTP/1.1 302 Found\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]92 "Cache-Control: no-cache\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]93 "Content-length: 0\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]94 "Location: "; /* not terminated since it will be concatenated with the URL */
95
96/* same as 302 except that the browser MUST retry with the GET method */
97const char *HTTP_303 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]98 "HTTP/1.1 303 See Other\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]99 "Cache-Control: no-cache\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]100 "Content-length: 0\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]101 "Location: "; /* not terminated since it will be concatenated with the URL */
102
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]103
104/* same as 302 except that the browser MUST retry with the same method */
105const char *HTTP_307 =
106 "HTTP/1.1 307 Temporary Redirect\r\n"
107 "Cache-Control: no-cache\r\n"
108 "Content-length: 0\r\n"
109 "Location: "; /* not terminated since it will be concatenated with the URL */
110
111/* same as 301 except that the browser MUST retry with the same method */
112const char *HTTP_308 =
113 "HTTP/1.1 308 Permanent Redirect\r\n"
114 "Content-length: 0\r\n"
115 "Location: "; /* not terminated since it will be concatenated with the URL */
116
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]117/* Warning: this one is an sprintf() fmt string, with <realm> as its only argument */
118const char *HTTP_401_fmt =
119 "HTTP/1.0 401 Unauthorized\r\n"
120 "Cache-Control: no-cache\r\n"
121 "Connection: close\r\n"
Willy Tarreau791d66d2006-07-08 16:53:38 +0200[diff] [blame]122 "Content-Type: text/html\r\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]123 "WWW-Authenticate: Basic realm=\"%s\"\r\n"
124 "\r\n"
125 "<html><body><h1>401 Unauthorized</h1>\nYou need a valid user and password to access this content.\n</body></html>\n";
126
Willy Tarreau844a7e72010-01-31 21:46:18 +0100[diff] [blame]127const char *HTTP_407_fmt =
128 "HTTP/1.0 407 Unauthorized\r\n"
129 "Cache-Control: no-cache\r\n"
130 "Connection: close\r\n"
131 "Content-Type: text/html\r\n"
132 "Proxy-Authenticate: Basic realm=\"%s\"\r\n"
133 "\r\n"
Godbach1f1fae62014-12-17 16:32:05 +0800[diff] [blame]134 "<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]135
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]136
137const int http_err_codes[HTTP_ERR_SIZE] = {
Willy Tarreauae94d4d2011-05-11 16:28:49 +0200[diff] [blame]138 [HTTP_ERR_200] = 200, /* used by "monitor-uri" */
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]139 [HTTP_ERR_400] = 400,
140 [HTTP_ERR_403] = 403,
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]141 [HTTP_ERR_405] = 405,
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]142 [HTTP_ERR_408] = 408,
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]143 [HTTP_ERR_425] = 425,
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]144 [HTTP_ERR_429] = 429,
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]145 [HTTP_ERR_500] = 500,
146 [HTTP_ERR_502] = 502,
147 [HTTP_ERR_503] = 503,
148 [HTTP_ERR_504] = 504,
149};
150
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]151static const char *http_err_msgs[HTTP_ERR_SIZE] = {
Willy Tarreauae94d4d2011-05-11 16:28:49 +0200[diff] [blame]152 [HTTP_ERR_200] =
153 "HTTP/1.0 200 OK\r\n"
154 "Cache-Control: no-cache\r\n"
155 "Connection: close\r\n"
156 "Content-Type: text/html\r\n"
157 "\r\n"
158 "<html><body><h1>200 OK</h1>\nService ready.\n</body></html>\n",
159
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]160 [HTTP_ERR_400] =
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]161 "HTTP/1.0 400 Bad request\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]162 "Cache-Control: no-cache\r\n"
163 "Connection: close\r\n"
164 "Content-Type: text/html\r\n"
165 "\r\n"
166 "<html><body><h1>400 Bad request</h1>\nYour browser sent an invalid request.\n</body></html>\n",
167
168 [HTTP_ERR_403] =
169 "HTTP/1.0 403 Forbidden\r\n"
170 "Cache-Control: no-cache\r\n"
171 "Connection: close\r\n"
172 "Content-Type: text/html\r\n"
173 "\r\n"
174 "<html><body><h1>403 Forbidden</h1>\nRequest forbidden by administrative rules.\n</body></html>\n",
175
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]176 [HTTP_ERR_405] =
177 "HTTP/1.0 405 Method Not Allowed\r\n"
178 "Cache-Control: no-cache\r\n"
179 "Connection: close\r\n"
180 "Content-Type: text/html\r\n"
181 "\r\n"
182 "<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",
183
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]184 [HTTP_ERR_408] =
185 "HTTP/1.0 408 Request Time-out\r\n"
186 "Cache-Control: no-cache\r\n"
187 "Connection: close\r\n"
188 "Content-Type: text/html\r\n"
189 "\r\n"
190 "<html><body><h1>408 Request Time-out</h1>\nYour browser didn't send a complete request in time.\n</body></html>\n",
191
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]192 [HTTP_ERR_425] =
193 "HTTP/1.0 425 Too Early\r\n"
194 "Cache-Control: no-cache\r\n"
195 "Connection: close\r\n"
196 "Content-Type: text/html\r\n"
197 "\r\n"
198 "<html><body><h1>425 Too Early</h1>\nYour browser sent early data.\n</body></html>\n",
199
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]200 [HTTP_ERR_429] =
201 "HTTP/1.0 429 Too Many Requests\r\n"
202 "Cache-Control: no-cache\r\n"
203 "Connection: close\r\n"
204 "Content-Type: text/html\r\n"
205 "\r\n"
206 "<html><body><h1>429 Too Many Requests</h1>\nYou have sent too many requests in a given amount of time.\n</body></html>\n",
207
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]208 [HTTP_ERR_500] =
Jarno Huuskonen16ad94a2017-01-09 14:17:10 +0200[diff] [blame]209 "HTTP/1.0 500 Internal Server Error\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]210 "Cache-Control: no-cache\r\n"
211 "Connection: close\r\n"
212 "Content-Type: text/html\r\n"
213 "\r\n"
Jarno Huuskonen16ad94a2017-01-09 14:17:10 +0200[diff] [blame]214 "<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]215
216 [HTTP_ERR_502] =
217 "HTTP/1.0 502 Bad Gateway\r\n"
218 "Cache-Control: no-cache\r\n"
219 "Connection: close\r\n"
220 "Content-Type: text/html\r\n"
221 "\r\n"
222 "<html><body><h1>502 Bad Gateway</h1>\nThe server returned an invalid or incomplete response.\n</body></html>\n",
223
224 [HTTP_ERR_503] =
225 "HTTP/1.0 503 Service Unavailable\r\n"
226 "Cache-Control: no-cache\r\n"
227 "Connection: close\r\n"
228 "Content-Type: text/html\r\n"
229 "\r\n"
230 "<html><body><h1>503 Service Unavailable</h1>\nNo server is available to handle this request.\n</body></html>\n",
231
232 [HTTP_ERR_504] =
233 "HTTP/1.0 504 Gateway Time-out\r\n"
234 "Cache-Control: no-cache\r\n"
235 "Connection: close\r\n"
236 "Content-Type: text/html\r\n"
237 "\r\n"
238 "<html><body><h1>504 Gateway Time-out</h1>\nThe server didn't respond in time.\n</body></html>\n",
239
240};
241
Cyril Bonté19979e12012-04-04 12:57:21 +0200[diff] [blame]242/* status codes available for the stats admin page (strictly 4 chars length) */
243const char *stat_status_codes[STAT_STATUS_SIZE] = {
244 [STAT_STATUS_DENY] = "DENY",
245 [STAT_STATUS_DONE] = "DONE",
246 [STAT_STATUS_ERRP] = "ERRP",
247 [STAT_STATUS_EXCD] = "EXCD",
248 [STAT_STATUS_NONE] = "NONE",
249 [STAT_STATUS_PART] = "PART",
250 [STAT_STATUS_UNKN] = "UNKN",
251};
252
253
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]254/* List head of all known action keywords for "http-request" */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]255struct action_kw_list http_req_keywords = {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]256 .list = LIST_HEAD_INIT(http_req_keywords.list)
257};
258
259/* List head of all known action keywords for "http-response" */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]260struct action_kw_list http_res_keywords = {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]261 .list = LIST_HEAD_INIT(http_res_keywords.list)
262};
263
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]264/* We must put the messages here since GCC cannot initialize consts depending
265 * on strlen().
266 */
267struct chunk http_err_chunks[HTTP_ERR_SIZE];
268
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]269/* this struct is used between calls to smp_fetch_hdr() or smp_fetch_cookie() */
Christopher Faulet1bc04c72017-10-29 20:14:08 +0100[diff] [blame]270static THREAD_LOCAL struct hdr_ctx static_hdr_ctx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]271
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]272#define FD_SETS_ARE_BITFIELDS
273#ifdef FD_SETS_ARE_BITFIELDS
274/*
275 * This map is used with all the FD_* macros to check whether a particular bit
276 * is set or not. Each bit represents an ACSII code. FD_SET() sets those bytes
277 * which should be encoded. When FD_ISSET() returns non-zero, it means that the
278 * byte should be encoded. Be careful to always pass bytes from 0 to 255
279 * exclusively to the macros.
280 */
281fd_set hdr_encode_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
282fd_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]283fd_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]284
285#else
286#error "Check if your OS uses bitfields for fd_sets"
287#endif
288
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]289static 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]290
David Carlier7365f7d2016-04-04 11:54:42 +0100[diff] [blame]291static inline int http_msg_forward_body(struct stream *s, struct http_msg *msg);
292static inline int http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]293
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]294/* This function returns a reason associated with the HTTP status.
295 * This function never fails, a message is always returned.
296 */
297const char *get_reason(unsigned int status)
298{
299 switch (status) {
300 case 100: return "Continue";
301 case 101: return "Switching Protocols";
302 case 102: return "Processing";
303 case 200: return "OK";
304 case 201: return "Created";
305 case 202: return "Accepted";
306 case 203: return "Non-Authoritative Information";
307 case 204: return "No Content";
308 case 205: return "Reset Content";
309 case 206: return "Partial Content";
310 case 207: return "Multi-Status";
311 case 210: return "Content Different";
312 case 226: return "IM Used";
313 case 300: return "Multiple Choices";
314 case 301: return "Moved Permanently";
315 case 302: return "Moved Temporarily";
316 case 303: return "See Other";
317 case 304: return "Not Modified";
318 case 305: return "Use Proxy";
319 case 307: return "Temporary Redirect";
320 case 308: return "Permanent Redirect";
321 case 310: return "Too many Redirects";
322 case 400: return "Bad Request";
323 case 401: return "Unauthorized";
324 case 402: return "Payment Required";
325 case 403: return "Forbidden";
326 case 404: return "Not Found";
327 case 405: return "Method Not Allowed";
328 case 406: return "Not Acceptable";
329 case 407: return "Proxy Authentication Required";
330 case 408: return "Request Time-out";
331 case 409: return "Conflict";
332 case 410: return "Gone";
333 case 411: return "Length Required";
334 case 412: return "Precondition Failed";
335 case 413: return "Request Entity Too Large";
336 case 414: return "Request-URI Too Long";
337 case 415: return "Unsupported Media Type";
338 case 416: return "Requested range unsatisfiable";
339 case 417: return "Expectation failed";
340 case 418: return "I'm a teapot";
341 case 422: return "Unprocessable entity";
342 case 423: return "Locked";
343 case 424: return "Method failure";
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]344 case 425: return "Too Early";
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]345 case 426: return "Upgrade Required";
346 case 428: return "Precondition Required";
347 case 429: return "Too Many Requests";
348 case 431: return "Request Header Fields Too Large";
349 case 449: return "Retry With";
350 case 450: return "Blocked by Windows Parental Controls";
351 case 451: return "Unavailable For Legal Reasons";
352 case 456: return "Unrecoverable Error";
353 case 499: return "client has closed connection";
354 case 500: return "Internal Server Error";
355 case 501: return "Not Implemented";
Jarno Huuskonen59af2df2016-12-28 10:49:01 +0200[diff] [blame]356 case 502: return "Bad Gateway or Proxy Error";
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]357 case 503: return "Service Unavailable";
358 case 504: return "Gateway Time-out";
359 case 505: return "HTTP Version not supported";
360 case 506: return "Variant also negociate";
361 case 507: return "Insufficient storage";
362 case 508: return "Loop detected";
363 case 509: return "Bandwidth Limit Exceeded";
364 case 510: return "Not extended";
365 case 511: return "Network authentication required";
366 case 520: return "Web server is returning an unknown error";
367 default:
368 switch (status) {
369 case 100 ... 199: return "Informational";
370 case 200 ... 299: return "Success";
371 case 300 ... 399: return "Redirection";
372 case 400 ... 499: return "Client Error";
373 case 500 ... 599: return "Server Error";
374 default: return "Other";
375 }
376 }
377}
378
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]379/* This function returns HTTP_ERR_<num> (enum) matching http status code.
380 * Returned value should match codes from http_err_codes.
381 */
382static const int http_get_status_idx(unsigned int status)
383{
384 switch (status) {
385 case 200: return HTTP_ERR_200;
386 case 400: return HTTP_ERR_400;
387 case 403: return HTTP_ERR_403;
388 case 405: return HTTP_ERR_405;
389 case 408: return HTTP_ERR_408;
Olivier Houchard51a76d82017-10-02 16:12:07 +0200[diff] [blame]390 case 425: return HTTP_ERR_425;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]391 case 429: return HTTP_ERR_429;
392 case 500: return HTTP_ERR_500;
393 case 502: return HTTP_ERR_502;
394 case 503: return HTTP_ERR_503;
395 case 504: return HTTP_ERR_504;
396 default: return HTTP_ERR_500;
397 }
398}
399
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]400void init_proto_http()
401{
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]402 int i;
403 char *tmp;
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]404 int msg;
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]405
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]406 for (msg = 0; msg < HTTP_ERR_SIZE; msg++) {
407 if (!http_err_msgs[msg]) {
408 Alert("Internal error: no message defined for HTTP return code %d. Aborting.\n", msg);
409 abort();
410 }
411
412 http_err_chunks[msg].str = (char *)http_err_msgs[msg];
413 http_err_chunks[msg].len = strlen(http_err_msgs[msg]);
414 }
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]415
416 /* initialize the log header encoding map : '{|}"#' should be encoded with
417 * '#' as prefix, as well as non-printable characters ( <32 or >= 127 ).
418 * URL encoding only requires '"', '#' to be encoded as well as non-
419 * printable characters above.
420 */
421 memset(hdr_encode_map, 0, sizeof(hdr_encode_map));
422 memset(url_encode_map, 0, sizeof(url_encode_map));
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]423 memset(http_encode_map, 0, sizeof(url_encode_map));
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]424 for (i = 0; i < 32; i++) {
425 FD_SET(i, hdr_encode_map);
426 FD_SET(i, url_encode_map);
427 }
428 for (i = 127; i < 256; i++) {
429 FD_SET(i, hdr_encode_map);
430 FD_SET(i, url_encode_map);
431 }
432
433 tmp = "\"#{|}";
434 while (*tmp) {
435 FD_SET(*tmp, hdr_encode_map);
436 tmp++;
437 }
438
439 tmp = "\"#";
440 while (*tmp) {
441 FD_SET(*tmp, url_encode_map);
442 tmp++;
443 }
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]444
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]445 /* initialize the http header encoding map. The draft httpbis define the
446 * header content as:
447 *
448 * HTTP-message = start-line
449 * *( header-field CRLF )
450 * CRLF
451 * [ message-body ]
452 * header-field = field-name ":" OWS field-value OWS
453 * field-value = *( field-content / obs-fold )
454 * field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
455 * obs-fold = CRLF 1*( SP / HTAB )
456 * field-vchar = VCHAR / obs-text
457 * VCHAR = %x21-7E
458 * obs-text = %x80-FF
459 *
460 * All the chars are encoded except "VCHAR", "obs-text", SP and HTAB.
461 * The encoded chars are form 0x00 to 0x08, 0x0a to 0x1f and 0x7f. The
462 * "obs-fold" is volontary forgotten because haproxy remove this.
463 */
464 memset(http_encode_map, 0, sizeof(http_encode_map));
465 for (i = 0x00; i <= 0x08; i++)
466 FD_SET(i, http_encode_map);
467 for (i = 0x0a; i <= 0x1f; i++)
468 FD_SET(i, http_encode_map);
469 FD_SET(0x7f, http_encode_map);
470
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]471 /* memory allocations */
Willy Tarreau63986c72015-04-03 22:55:33 +0200[diff] [blame]472 pool2_http_txn = create_pool("http_txn", sizeof(struct http_txn), MEM_F_SHARED);
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]473 pool2_uniqueid = create_pool("uniqueid", UNIQUEID_LEN, MEM_F_SHARED);
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]474}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]475
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]476/*
477 * We have 26 list of methods (1 per first letter), each of which can have
478 * up to 3 entries (2 valid, 1 null).
479 */
480struct http_method_desc {
Willy Tarreauc8987b32013-12-06 23:43:17 +0100[diff] [blame]481 enum http_meth_t meth;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]482 int len;
483 const char text[8];
484};
485
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]486const struct http_method_desc http_methods[26][3] = {
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]487 ['C' - 'A'] = {
488 [0] = { .meth = HTTP_METH_CONNECT , .len=7, .text="CONNECT" },
489 },
490 ['D' - 'A'] = {
491 [0] = { .meth = HTTP_METH_DELETE , .len=6, .text="DELETE" },
492 },
493 ['G' - 'A'] = {
494 [0] = { .meth = HTTP_METH_GET , .len=3, .text="GET" },
495 },
496 ['H' - 'A'] = {
497 [0] = { .meth = HTTP_METH_HEAD , .len=4, .text="HEAD" },
498 },
Christopher Fauletd57ad642015-07-31 14:26:57 +0200[diff] [blame]499 ['O' - 'A'] = {
500 [0] = { .meth = HTTP_METH_OPTIONS , .len=7, .text="OPTIONS" },
501 },
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]502 ['P' - 'A'] = {
503 [0] = { .meth = HTTP_METH_POST , .len=4, .text="POST" },
504 [1] = { .meth = HTTP_METH_PUT , .len=3, .text="PUT" },
505 },
506 ['T' - 'A'] = {
507 [0] = { .meth = HTTP_METH_TRACE , .len=5, .text="TRACE" },
508 },
509 /* rest is empty like this :
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]510 * [0] = { .meth = HTTP_METH_OTHER , .len=0, .text="" },
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]511 */
512};
513
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]514const struct http_method_name http_known_methods[HTTP_METH_OTHER] = {
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]515 [HTTP_METH_OPTIONS] = { "OPTIONS", 7 },
516 [HTTP_METH_GET] = { "GET", 3 },
517 [HTTP_METH_HEAD] = { "HEAD", 4 },
518 [HTTP_METH_POST] = { "POST", 4 },
519 [HTTP_METH_PUT] = { "PUT", 3 },
520 [HTTP_METH_DELETE] = { "DELETE", 6 },
521 [HTTP_METH_TRACE] = { "TRACE", 5 },
522 [HTTP_METH_CONNECT] = { "CONNECT", 7 },
523};
524
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]525/*
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]526 * Adds a header and its CRLF at the tail of the message's buffer, just before
527 * the last CRLF. Text length is measured first, so it cannot be NULL.
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]528 * The header is also automatically added to the index <hdr_idx>, and the end
529 * of headers is automatically adjusted. The number of bytes added is returned
530 * on success, otherwise <0 is returned indicating an error.
531 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]532int 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]533{
534 int bytes, len;
535
536 len = strlen(text);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]537 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]538 if (!bytes)
539 return -1;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]540 http_msg_move_end(msg, bytes);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]541 return hdr_idx_add(len, 1, hdr_idx, hdr_idx->tail);
542}
543
544/*
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]545 * Adds a header and its CRLF at the tail of the message's buffer, just before
546 * 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]547 * the buffer is only opened and the space reserved, but nothing is copied.
548 * The header is also automatically added to the index <hdr_idx>, and the end
549 * of headers is automatically adjusted. The number of bytes added is returned
550 * on success, otherwise <0 is returned indicating an error.
551 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]552int http_header_add_tail2(struct http_msg *msg,
553 struct hdr_idx *hdr_idx, const char *text, int len)
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]554{
555 int bytes;
556
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]557 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]558 if (!bytes)
559 return -1;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]560 http_msg_move_end(msg, bytes);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]561 return hdr_idx_add(len, 1, hdr_idx, hdr_idx->tail);
562}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]563
564/*
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]565 * Checks if <hdr> is exactly <name> for <len> chars, and ends with a colon.
566 * If so, returns the position of the first non-space character relative to
567 * <hdr>, or <end>-<hdr> if not found before. If no value is found, it tries
568 * to return a pointer to the place after the first space. Returns 0 if the
569 * header name does not match. Checks are case-insensitive.
570 */
571int http_header_match2(const char *hdr, const char *end,
572 const char *name, int len)
573{
574 const char *val;
575
576 if (hdr + len >= end)
577 return 0;
578 if (hdr[len] != ':')
579 return 0;
580 if (strncasecmp(hdr, name, len) != 0)
581 return 0;
582 val = hdr + len + 1;
583 while (val < end && HTTP_IS_SPHT(*val))
584 val++;
585 if ((val >= end) && (len + 2 <= end - hdr))
586 return len + 2; /* we may replace starting from second space */
587 return val - hdr;
588}
589
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]590/* Find the first or next occurrence of header <name> in message buffer <sol>
591 * using headers index <idx>, and return it in the <ctx> structure. This
592 * structure holds everything necessary to use the header and find next
593 * occurrence. If its <idx> member is 0, the header is searched from the
594 * beginning. Otherwise, the next occurrence is returned. The function returns
595 * 1 when it finds a value, and 0 when there is no more. It is very similar to
596 * http_find_header2() except that it is designed to work with full-line headers
597 * whose comma is not a delimiter but is part of the syntax. As a special case,
598 * if ctx->val is NULL when searching for a new values of a header, the current
599 * header is rescanned. This allows rescanning after a header deletion.
600 */
601int http_find_full_header2(const char *name, int len,
602 char *sol, struct hdr_idx *idx,
603 struct hdr_ctx *ctx)
604{
605 char *eol, *sov;
606 int cur_idx, old_idx;
607
608 cur_idx = ctx->idx;
609 if (cur_idx) {
610 /* We have previously returned a header, let's search another one */
611 sol = ctx->line;
612 eol = sol + idx->v[cur_idx].len;
613 goto next_hdr;
614 }
615
616 /* first request for this header */
617 sol += hdr_idx_first_pos(idx);
618 old_idx = 0;
619 cur_idx = hdr_idx_first_idx(idx);
620 while (cur_idx) {
621 eol = sol + idx->v[cur_idx].len;
622
623 if (len == 0) {
624 /* No argument was passed, we want any header.
625 * To achieve this, we simply build a fake request. */
626 while (sol + len < eol && sol[len] != ':')
627 len++;
628 name = sol;
629 }
630
631 if ((len < eol - sol) &&
632 (sol[len] == ':') &&
633 (strncasecmp(sol, name, len) == 0)) {
634 ctx->del = len;
635 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]636 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]637 sov++;
638
639 ctx->line = sol;
640 ctx->prev = old_idx;
641 ctx->idx = cur_idx;
642 ctx->val = sov - sol;
643 ctx->tws = 0;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]644 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]645 eol--;
646 ctx->tws++;
647 }
648 ctx->vlen = eol - sov;
649 return 1;
650 }
651 next_hdr:
652 sol = eol + idx->v[cur_idx].cr + 1;
653 old_idx = cur_idx;
654 cur_idx = idx->v[cur_idx].next;
655 }
656 return 0;
657}
658
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]659/* Find the first or next header field in message buffer <sol> using headers
660 * index <idx>, and return it in the <ctx> structure. This structure holds
661 * everything necessary to use the header and find next occurrence. If its
662 * <idx> member is 0, the first header is retrieved. Otherwise, the next
663 * occurrence is returned. The function returns 1 when it finds a value, and
664 * 0 when there is no more. It is equivalent to http_find_full_header2() with
665 * no header name.
666 */
667int http_find_next_header(char *sol, struct hdr_idx *idx, struct hdr_ctx *ctx)
668{
669 char *eol, *sov;
670 int cur_idx, old_idx;
671 int len;
672
673 cur_idx = ctx->idx;
674 if (cur_idx) {
675 /* We have previously returned a header, let's search another one */
676 sol = ctx->line;
677 eol = sol + idx->v[cur_idx].len;
678 goto next_hdr;
679 }
680
681 /* first request for this header */
682 sol += hdr_idx_first_pos(idx);
683 old_idx = 0;
684 cur_idx = hdr_idx_first_idx(idx);
685 while (cur_idx) {
686 eol = sol + idx->v[cur_idx].len;
687
688 len = 0;
689 while (1) {
690 if (len >= eol - sol)
691 goto next_hdr;
692 if (sol[len] == ':')
693 break;
694 len++;
695 }
696
697 ctx->del = len;
698 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]699 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]700 sov++;
701
702 ctx->line = sol;
703 ctx->prev = old_idx;
704 ctx->idx = cur_idx;
705 ctx->val = sov - sol;
706 ctx->tws = 0;
707
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]708 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]709 eol--;
710 ctx->tws++;
711 }
712 ctx->vlen = eol - sov;
713 return 1;
714
715 next_hdr:
716 sol = eol + idx->v[cur_idx].cr + 1;
717 old_idx = cur_idx;
718 cur_idx = idx->v[cur_idx].next;
719 }
720 return 0;
721}
722
Lukas Tribus23953682017-04-28 13:24:30 +0000[diff] [blame]723/* Find the end of the header value contained between <s> and <e>. See RFC7230,
724 * 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]725 * a valid result. This works for headers defined as comma-separated lists.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]726 */
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]727char *find_hdr_value_end(char *s, const char *e)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]728{
729 int quoted, qdpair;
730
731 quoted = qdpair = 0;
Willy Tarreaue6d9c212016-11-05 18:23:38 +0100[diff] [blame]732
733#if defined(__x86_64__) || \
734 defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) || \
735 defined(__ARM_ARCH_7A__)
736 /* speedup: skip everything not a comma nor a double quote */
737 for (; s <= e - sizeof(int); s += sizeof(int)) {
738 unsigned int c = *(int *)s; // comma
739 unsigned int q = c; // quote
740
741 c ^= 0x2c2c2c2c; // contains one zero on a comma
742 q ^= 0x22222222; // contains one zero on a quote
743
744 c = (c - 0x01010101) & ~c; // contains 0x80 below a comma
745 q = (q - 0x01010101) & ~q; // contains 0x80 below a quote
746
747 if ((c | q) & 0x80808080)
748 break; // found a comma or a quote
749 }
750#endif
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]751 for (; s < e; s++) {
752 if (qdpair) qdpair = 0;
Willy Tarreau0f7f51f2010-08-30 11:06:34 +0200[diff] [blame]753 else if (quoted) {
754 if (*s == '\\') qdpair = 1;
755 else if (*s == '"') quoted = 0;
756 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]757 else if (*s == '"') quoted = 1;
758 else if (*s == ',') return s;
759 }
760 return s;
761}
762
763/* Find the first or next occurrence of header <name> in message buffer <sol>
764 * using headers index <idx>, and return it in the <ctx> structure. This
765 * structure holds everything necessary to use the header and find next
766 * occurrence. If its <idx> member is 0, the header is searched from the
767 * beginning. Otherwise, the next occurrence is returned. The function returns
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]768 * 1 when it finds a value, and 0 when there is no more. It is designed to work
769 * with headers defined as comma-separated lists. As a special case, if ctx->val
770 * is NULL when searching for a new values of a header, the current header is
771 * rescanned. This allows rescanning after a header deletion.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]772 */
773int http_find_header2(const char *name, int len,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]774 char *sol, struct hdr_idx *idx,
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]775 struct hdr_ctx *ctx)
776{
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]777 char *eol, *sov;
778 int cur_idx, old_idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]779
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]780 cur_idx = ctx->idx;
781 if (cur_idx) {
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]782 /* We have previously returned a value, let's search
783 * another one on the same line.
784 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]785 sol = ctx->line;
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]786 ctx->del = ctx->val + ctx->vlen + ctx->tws;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]787 sov = sol + ctx->del;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]788 eol = sol + idx->v[cur_idx].len;
789
790 if (sov >= eol)
791 /* no more values in this header */
792 goto next_hdr;
793
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]794 /* values remaining for this header, skip the comma but save it
795 * for later use (eg: for header deletion).
796 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]797 sov++;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]798 while (sov < eol && HTTP_IS_LWS((*sov)))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]799 sov++;
800
801 goto return_hdr;
802 }
803
804 /* first request for this header */
805 sol += hdr_idx_first_pos(idx);
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]806 old_idx = 0;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]807 cur_idx = hdr_idx_first_idx(idx);
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]808 while (cur_idx) {
809 eol = sol + idx->v[cur_idx].len;
810
Willy Tarreau1ad7c6d2007-06-10 21:42:55 +0200[diff] [blame]811 if (len == 0) {
812 /* No argument was passed, we want any header.
813 * To achieve this, we simply build a fake request. */
814 while (sol + len < eol && sol[len] != ':')
815 len++;
816 name = sol;
817 }
818
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]819 if ((len < eol - sol) &&
820 (sol[len] == ':') &&
821 (strncasecmp(sol, name, len) == 0)) {
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]822 ctx->del = len;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]823 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]824 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]825 sov++;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]826
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]827 ctx->line = sol;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]828 ctx->prev = old_idx;
829 return_hdr:
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]830 ctx->idx = cur_idx;
831 ctx->val = sov - sol;
832
833 eol = find_hdr_value_end(sov, eol);
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]834 ctx->tws = 0;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]835 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]836 eol--;
837 ctx->tws++;
838 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]839 ctx->vlen = eol - sov;
840 return 1;
841 }
842 next_hdr:
843 sol = eol + idx->v[cur_idx].cr + 1;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]844 old_idx = cur_idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]845 cur_idx = idx->v[cur_idx].next;
846 }
847 return 0;
848}
849
850int http_find_header(const char *name,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]851 char *sol, struct hdr_idx *idx,
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]852 struct hdr_ctx *ctx)
853{
854 return http_find_header2(name, strlen(name), sol, idx, ctx);
855}
856
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]857/* Remove one value of a header. This only works on a <ctx> returned by one of
858 * the http_find_header functions. The value is removed, as well as surrounding
859 * commas if any. If the removed value was alone, the whole header is removed.
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]860 * The ctx is always updated accordingly, as well as the buffer and HTTP
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]861 * message <msg>. The new index is returned. If it is zero, it means there is
862 * no more header, so any processing may stop. The ctx is always left in a form
863 * that can be handled by http_find_header2() to find next occurrence.
864 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]865int 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]866{
867 int cur_idx = ctx->idx;
868 char *sol = ctx->line;
869 struct hdr_idx_elem *hdr;
870 int delta, skip_comma;
871
872 if (!cur_idx)
873 return 0;
874
875 hdr = &idx->v[cur_idx];
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]876 if (sol[ctx->del] == ':' && ctx->val + ctx->vlen + ctx->tws == hdr->len) {
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]877 /* This was the only value of the header, we must now remove it entirely. */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]878 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]879 http_msg_move_end(msg, delta);
880 idx->used--;
881 hdr->len = 0; /* unused entry */
882 idx->v[ctx->prev].next = idx->v[ctx->idx].next;
Willy Tarreau5c4784f2011-02-12 13:07:35 +0100[diff] [blame]883 if (idx->tail == ctx->idx)
884 idx->tail = ctx->prev;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]885 ctx->idx = ctx->prev; /* walk back to the end of previous header */
Willy Tarreau7c1c2172015-01-07 17:23:50 +0100[diff] [blame]886 ctx->line -= idx->v[ctx->idx].len + idx->v[ctx->idx].cr + 1;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]887 ctx->val = idx->v[ctx->idx].len; /* point to end of previous header */
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]888 ctx->tws = ctx->vlen = 0;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]889 return ctx->idx;
890 }
891
892 /* This was not the only value of this header. We have to remove between
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]893 * ctx->del+1 and ctx->val+ctx->vlen+ctx->tws+1 included. If it is the
894 * last entry of the list, we remove the last separator.
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]895 */
896
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]897 skip_comma = (ctx->val + ctx->vlen + ctx->tws == hdr->len) ? 0 : 1;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]898 delta = buffer_replace2(msg->chn->buf, sol + ctx->del + skip_comma,
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]899 sol + ctx->val + ctx->vlen + ctx->tws + skip_comma,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]900 NULL, 0);
901 hdr->len += delta;
902 http_msg_move_end(msg, delta);
903 ctx->val = ctx->del;
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]904 ctx->tws = ctx->vlen = 0;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]905 return ctx->idx;
906}
907
Willy Tarreau2d3d94c2008-11-30 20:20:08 +0100[diff] [blame]908/* This function handles a server error at the stream interface level. The
909 * stream interface is assumed to be already in a closed state. An optional
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]910 * message is copied into the input buffer.
Willy Tarreau2d3d94c2008-11-30 20:20:08 +0100[diff] [blame]911 * The error flags are set to the values in arguments. Any pending request
Willy Tarreau6f0aa472009-03-08 20:33:29 +0100[diff] [blame]912 * in this buffer will be lost.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]913 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]914static void http_server_error(struct stream *s, struct stream_interface *si,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]915 int err, int finst, const struct chunk *msg)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]916{
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]917 FLT_STRM_CB(s, flt_http_reply(s, s->txn->status, msg));
Willy Tarreau2bb4a962014-11-28 11:11:05 +0100[diff] [blame]918 channel_auto_read(si_oc(si));
919 channel_abort(si_oc(si));
920 channel_auto_close(si_oc(si));
921 channel_erase(si_oc(si));
922 channel_auto_close(si_ic(si));
923 channel_auto_read(si_ic(si));
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]924 if (msg)
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]925 co_inject(si_ic(si), msg->str, msg->len);
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]926 if (!(s->flags & SF_ERR_MASK))
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]927 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]928 if (!(s->flags & SF_FINST_MASK))
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]929 s->flags |= finst;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]930}
931
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]932/* This function returns the appropriate error location for the given stream
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]933 * and message.
934 */
935
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]936struct chunk *http_error_message(struct stream *s)
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]937{
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]938 const int msgnum = http_get_status_idx(s->txn->status);
939
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200[diff] [blame]940 if (s->be->errmsg[msgnum].str)
941 return &s->be->errmsg[msgnum];
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]942 else if (strm_fe(s)->errmsg[msgnum].str)
943 return &strm_fe(s)->errmsg[msgnum];
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]944 else
945 return &http_err_chunks[msgnum];
946}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]947
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]948void
949http_reply_and_close(struct stream *s, short status, struct chunk *msg)
950{
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]951 s->txn->flags &= ~TX_WAIT_NEXT_RQ;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]952 FLT_STRM_CB(s, flt_http_reply(s, status, msg));
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]953 stream_int_retnclose(&s->si[0], msg);
954}
955
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]956/*
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]957 * returns a known method among HTTP_METH_* or HTTP_METH_OTHER for all unknown
958 * ones.
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]959 */
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]960enum http_meth_t find_http_meth(const char *str, const int len)
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]961{
962 unsigned char m;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]963 const struct http_method_desc *h;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]964
965 m = ((unsigned)*str - 'A');
966
967 if (m < 26) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]968 for (h = http_methods[m]; h->len > 0; h++) {
969 if (unlikely(h->len != len))
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]970 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]971 if (likely(memcmp(str, h->text, h->len) == 0))
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]972 return h->meth;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]973 };
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]974 }
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]975 return HTTP_METH_OTHER;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]976}
977
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]978/* Parse the URI from the given transaction (which is assumed to be in request
979 * phase) and look for the "/" beginning the PATH. If not found, return NULL.
980 * It is returned otherwise.
981 */
Thierry FOURNIER3c331782015-09-17 19:33:35 +0200[diff] [blame]982char *http_get_path(struct http_txn *txn)
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]983{
984 char *ptr, *end;
985
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]986 ptr = txn->req.chn->buf->p + txn->req.sl.rq.u;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]987 end = ptr + txn->req.sl.rq.u_l;
988
989 if (ptr >= end)
990 return NULL;
991
Lukas Tribus23953682017-04-28 13:24:30 +0000[diff] [blame]992 /* RFC7230, par. 2.7 :
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]993 * Request-URI = "*" | absuri | abspath | authority
994 */
995
996 if (*ptr == '*')
997 return NULL;
998
999 if (isalpha((unsigned char)*ptr)) {
1000 /* this is a scheme as described by RFC3986, par. 3.1 */
1001 ptr++;
1002 while (ptr < end &&
1003 (isalnum((unsigned char)*ptr) || *ptr == '+' || *ptr == '-' || *ptr == '.'))
1004 ptr++;
1005 /* skip '://' */
1006 if (ptr == end || *ptr++ != ':')
1007 return NULL;
1008 if (ptr == end || *ptr++ != '/')
1009 return NULL;
1010 if (ptr == end || *ptr++ != '/')
1011 return NULL;
1012 }
1013 /* skip [user[:passwd]@]host[:[port]] */
1014
1015 while (ptr < end && *ptr != '/')
1016 ptr++;
1017
1018 if (ptr == end)
1019 return NULL;
1020
1021 /* OK, we got the '/' ! */
1022 return ptr;
1023}
1024
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]1025/* Parse the URI from the given string and look for the "/" beginning the PATH.
1026 * If not found, return NULL. It is returned otherwise.
1027 */
1028static char *
1029http_get_path_from_string(char *str)
1030{
1031 char *ptr = str;
1032
1033 /* RFC2616, par. 5.1.2 :
1034 * Request-URI = "*" | absuri | abspath | authority
1035 */
1036
1037 if (*ptr == '*')
1038 return NULL;
1039
1040 if (isalpha((unsigned char)*ptr)) {
1041 /* this is a scheme as described by RFC3986, par. 3.1 */
1042 ptr++;
1043 while (isalnum((unsigned char)*ptr) || *ptr == '+' || *ptr == '-' || *ptr == '.')
1044 ptr++;
1045 /* skip '://' */
1046 if (*ptr == '\0' || *ptr++ != ':')
1047 return NULL;
1048 if (*ptr == '\0' || *ptr++ != '/')
1049 return NULL;
1050 if (*ptr == '\0' || *ptr++ != '/')
1051 return NULL;
1052 }
1053 /* skip [user[:passwd]@]host[:[port]] */
1054
1055 while (*ptr != '\0' && *ptr != ' ' && *ptr != '/')
1056 ptr++;
1057
1058 if (*ptr == '\0' || *ptr == ' ')
1059 return NULL;
1060
1061 /* OK, we got the '/' ! */
1062 return ptr;
1063}
1064
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]1065/* Returns a 302 for a redirectable request that reaches a server working in
1066 * in redirect mode. This may only be called just after the stream interface
1067 * has moved to SI_ST_ASS. Unprocessable requests are left unchanged and will
1068 * follow normal proxy processing. NOTE: this function is designed to support
1069 * being called once data are scheduled for forwarding.
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1070 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1071void http_perform_server_redirect(struct stream *s, struct stream_interface *si)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1072{
1073 struct http_txn *txn;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1074 struct server *srv;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1075 char *path;
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1076 int len, rewind;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1077
1078 /* 1: create the response header */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1079 trash.len = strlen(HTTP_302);
1080 memcpy(trash.str, HTTP_302, trash.len);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1081
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]1082 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1083
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1084 /* 2: add the server's prefix */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1085 if (trash.len + srv->rdr_len > trash.size)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1086 return;
1087
Willy Tarreaudcb75c42010-01-10 00:24:22 +0100[diff] [blame]1088 /* special prefix "/" means don't change URL */
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1089 if (srv->rdr_len != 1 || *srv->rdr_pfx != '/') {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1090 memcpy(trash.str + trash.len, srv->rdr_pfx, srv->rdr_len);
1091 trash.len += srv->rdr_len;
Willy Tarreaudcb75c42010-01-10 00:24:22 +0100[diff] [blame]1092 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1093
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1094 /* 3: add the request URI. Since it was already forwarded, we need
1095 * to temporarily rewind the buffer.
1096 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1097 txn = s->txn;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1098 b_rew(s->req.buf, rewind = http_hdr_rewind(&txn->req));
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1099
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1100 path = http_get_path(txn);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1101 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]1102
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1103 b_adv(s->req.buf, rewind);
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1104
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1105 if (!path)
1106 return;
1107
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1108 if (trash.len + len > trash.size - 4) /* 4 for CRLF-CRLF */
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1109 return;
1110
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1111 memcpy(trash.str + trash.len, path, len);
1112 trash.len += len;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1113
1114 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1115 memcpy(trash.str + trash.len, "\r\nProxy-Connection: close\r\n\r\n", 29);
1116 trash.len += 29;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1117 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1118 memcpy(trash.str + trash.len, "\r\nConnection: close\r\n\r\n", 23);
1119 trash.len += 23;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1120 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1121
1122 /* prepare to return without error. */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200[diff] [blame]1123 si_shutr(si);
1124 si_shutw(si);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1125 si->err_type = SI_ET_NONE;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1126 si->state = SI_ST_CLO;
1127
1128 /* send the message */
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1129 txn->status = 302;
1130 http_server_error(s, si, SF_ERR_LOCAL, SF_FINST_C, &trash);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1131
1132 /* FIXME: we should increase a counter of redirects per server and per backend. */
Willy Tarreau4521ba62013-01-24 01:25:25 +0100[diff] [blame]1133 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -0500[diff] [blame]1134 srv_set_sess_last(srv);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1135}
1136
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100[diff] [blame]1137/* Return the error message corresponding to si->err_type. It is assumed
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1138 * that the server side is closed. Note that err_type is actually a
1139 * bitmask, where almost only aborts may be cumulated with other
1140 * values. We consider that aborted operations are more important
1141 * than timeouts or errors due to the fact that nobody else in the
1142 * logs might explain incomplete retries. All others should avoid
1143 * being cumulated. It should normally not be possible to have multiple
1144 * aborts at once, but just in case, the first one in sequence is reported.
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]1145 * Note that connection errors appearing on the second request of a keep-alive
1146 * connection are not reported since this allows the client to retry.
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1147 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1148void http_return_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1149{
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100[diff] [blame]1150 int err_type = si->err_type;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1151
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1152 /* set s->txn->status for http_error_message(s) */
1153 s->txn->status = 503;
1154
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1155 if (err_type & SI_ET_QUEUE_ABRT)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1156 http_server_error(s, si, SF_ERR_CLICL, SF_FINST_Q,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1157 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1158 else if (err_type & SI_ET_CONN_ABRT)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1159 http_server_error(s, si, SF_ERR_CLICL, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1160 (s->txn->flags & TX_NOT_FIRST) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1161 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1162 else if (err_type & SI_ET_QUEUE_TO)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1163 http_server_error(s, si, SF_ERR_SRVTO, SF_FINST_Q,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1164 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1165 else if (err_type & SI_ET_QUEUE_ERR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1166 http_server_error(s, si, SF_ERR_SRVCL, SF_FINST_Q,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1167 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1168 else if (err_type & SI_ET_CONN_TO)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1169 http_server_error(s, si, SF_ERR_SRVTO, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1170 (s->txn->flags & TX_NOT_FIRST) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1171 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1172 else if (err_type & SI_ET_CONN_ERR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1173 http_server_error(s, si, SF_ERR_SRVCL, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1174 (s->flags & SF_SRV_REUSED) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1175 http_error_message(s));
Willy Tarreau2d400bb2012-05-14 12:11:47 +0200[diff] [blame]1176 else if (err_type & SI_ET_CONN_RES)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1177 http_server_error(s, si, SF_ERR_RESOURCE, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1178 (s->txn->flags & TX_NOT_FIRST) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1179 http_error_message(s));
1180 else { /* SI_ET_CONN_OTHER and others */
1181 s->txn->status = 500;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1182 http_server_error(s, si, SF_ERR_INTERNAL, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1183 http_error_message(s));
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1184 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1185}
1186
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]1187extern const char sess_term_cond[8];
1188extern const char sess_fin_state[8];
1189extern const char *monthname[12];
Willy Tarreau63986c72015-04-03 22:55:33 +0200[diff] [blame]1190struct pool_head *pool2_http_txn;
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]1191struct pool_head *pool2_requri;
Willy Tarreau193b8c62012-11-22 00:17:38 +0100[diff] [blame]1192struct pool_head *pool2_capture = NULL;
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]1193struct pool_head *pool2_uniqueid;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1194
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1195/*
1196 * Capture headers from message starting at <som> according to header list
Willy Tarreau54da8db2014-06-13 16:11:48 +0200[diff] [blame]1197 * <cap_hdr>, and fill the <cap> pointers appropriately.
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1198 */
1199void capture_headers(char *som, struct hdr_idx *idx,
1200 char **cap, struct cap_hdr *cap_hdr)
1201{
1202 char *eol, *sol, *col, *sov;
1203 int cur_idx;
1204 struct cap_hdr *h;
1205 int len;
1206
1207 sol = som + hdr_idx_first_pos(idx);
1208 cur_idx = hdr_idx_first_idx(idx);
1209
1210 while (cur_idx) {
1211 eol = sol + idx->v[cur_idx].len;
1212
1213 col = sol;
1214 while (col < eol && *col != ':')
1215 col++;
1216
1217 sov = col + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]1218 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1219 sov++;
1220
1221 for (h = cap_hdr; h; h = h->next) {
Willy Tarreau54da8db2014-06-13 16:11:48 +0200[diff] [blame]1222 if (h->namelen && (h->namelen == col - sol) &&
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1223 (strncasecmp(sol, h->name, h->namelen) == 0)) {
1224 if (cap[h->index] == NULL)
1225 cap[h->index] =
Willy Tarreaucf7f3202007-05-13 22:46:04 +0200[diff] [blame]1226 pool_alloc2(h->pool);
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1227
1228 if (cap[h->index] == NULL) {
1229 Alert("HTTP capture : out of memory.\n");
1230 continue;
1231 }
1232
1233 len = eol - sov;
1234 if (len > h->len)
1235 len = h->len;
1236
1237 memcpy(cap[h->index], sov, len);
1238 cap[h->index][len]=0;
1239 }
1240 }
1241 sol = eol + idx->v[cur_idx].cr + 1;
1242 cur_idx = idx->v[cur_idx].next;
1243 }
1244}
1245
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1246/*
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1247 * Returns the data from Authorization header. Function may be called more
1248 * than once so data is stored in txn->auth_data. When no header is found
1249 * 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]1250 * searching again for something we are unable to find anyway. However, if
1251 * the result if valid, the cache is not reused because we would risk to
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1252 * have the credentials overwritten by another stream in parallel.
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1253 */
1254
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1255int
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1256get_http_auth(struct stream *s)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1257{
1258
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1259 struct http_txn *txn = s->txn;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1260 struct chunk auth_method;
1261 struct hdr_ctx ctx;
1262 char *h, *p;
1263 int len;
1264
1265#ifdef DEBUG_AUTH
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1266 printf("Auth for stream %p: %d\n", s, txn->auth.method);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1267#endif
1268
1269 if (txn->auth.method == HTTP_AUTH_WRONG)
1270 return 0;
1271
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1272 txn->auth.method = HTTP_AUTH_WRONG;
1273
1274 ctx.idx = 0;
Willy Tarreau844a7e72010-01-31 21:46:18 +0100[diff] [blame]1275
1276 if (txn->flags & TX_USE_PX_CONN) {
1277 h = "Proxy-Authorization";
1278 len = strlen(h);
1279 } else {
1280 h = "Authorization";
1281 len = strlen(h);
1282 }
1283
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1284 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]1285 return 0;
1286
1287 h = ctx.line + ctx.val;
1288
1289 p = memchr(h, ' ', ctx.vlen);
Willy Tarreau5c557d12016-03-13 08:17:02 +0100[diff] [blame]1290 len = p - h;
1291 if (!p || len <= 0)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1292 return 0;
1293
David Carlier7365f7d2016-04-04 11:54:42 +0100[diff] [blame]1294 if (chunk_initlen(&auth_method, h, 0, len) != 1)
1295 return 0;
1296
Willy Tarreau5c557d12016-03-13 08:17:02 +0100[diff] [blame]1297 chunk_initlen(&txn->auth.method_data, p + 1, 0, ctx.vlen - len - 1);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1298
1299 if (!strncasecmp("Basic", auth_method.str, auth_method.len)) {
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1300 struct chunk *http_auth = get_trash_chunk();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1301
1302 len = base64dec(txn->auth.method_data.str, txn->auth.method_data.len,
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1303 http_auth->str, global.tune.bufsize - 1);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1304
1305 if (len < 0)
1306 return 0;
1307
1308
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1309 http_auth->str[len] = '\0';
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1310
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1311 p = strchr(http_auth->str, ':');
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1312
1313 if (!p)
1314 return 0;
1315
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1316 txn->auth.user = http_auth->str;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1317 *p = '\0';
1318 txn->auth.pass = p+1;
1319
1320 txn->auth.method = HTTP_AUTH_BASIC;
1321 return 1;
1322 }
1323
1324 return 0;
1325}
1326
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]1327
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1328/* convert an HTTP/0.9 request into an HTTP/1.0 request. Returns 1 if the
1329 * conversion succeeded, 0 in case of error. If the request was already 1.X,
1330 * nothing is done and 1 is returned.
1331 */
Willy Tarreau418bfcc2012-03-09 13:56:20 +0100[diff] [blame]1332static int http_upgrade_v09_to_v10(struct http_txn *txn)
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1333{
1334 int delta;
1335 char *cur_end;
Willy Tarreau418bfcc2012-03-09 13:56:20 +0100[diff] [blame]1336 struct http_msg *msg = &txn->req;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1337
1338 if (msg->sl.rq.v_l != 0)
1339 return 1;
1340
Apollon Oikonomopoulos25a15222014-04-06 02:46:00 +0300[diff] [blame]1341 /* RFC 1945 allows only GET for HTTP/0.9 requests */
1342 if (txn->meth != HTTP_METH_GET)
1343 return 0;
1344
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1345 cur_end = msg->chn->buf->p + msg->sl.rq.l;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1346
1347 if (msg->sl.rq.u_l == 0) {
Apollon Oikonomopoulos25a15222014-04-06 02:46:00 +0300[diff] [blame]1348 /* HTTP/0.9 requests *must* have a request URI, per RFC 1945 */
1349 return 0;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1350 }
1351 /* add HTTP version */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1352 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]1353 http_msg_move_end(msg, delta);
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1354 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1355 cur_end = (char *)http_parse_reqline(msg,
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1356 HTTP_MSG_RQMETH,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1357 msg->chn->buf->p, cur_end + 1,
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1358 NULL, NULL);
1359 if (unlikely(!cur_end))
1360 return 0;
1361
1362 /* we have a full HTTP/1.0 request now and we know that
1363 * we have either a CR or an LF at <ptr>.
1364 */
1365 hdr_idx_set_start(&txn->hdr_idx, msg->sl.rq.l, *cur_end == '\r');
1366 return 1;
1367}
1368
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1369/* Parse the Connection: header of an HTTP request, looking for both "close"
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1370 * and "keep-alive" values. If we already know that some headers may safely
1371 * be removed, we remove them now. The <to_del> flags are used for that :
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1372 * - bit 0 means remove "close" headers (in HTTP/1.0 requests/responses)
1373 * - 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]1374 * Presence of the "Upgrade" token is also checked and reported.
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1375 * The TX_HDR_CONN_* flags are adjusted in txn->flags depending on what was
1376 * found, and TX_CON_*_SET is adjusted depending on what is left so only
1377 * harmless combinations may be removed. Do not call that after changes have
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1378 * been processed.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1379 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1380void 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]1381{
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1382 struct hdr_ctx ctx;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1383 const char *hdr_val = "Connection";
1384 int hdr_len = 10;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1385
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1386 if (txn->flags & TX_HDR_CONN_PRS)
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1387 return;
1388
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1389 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1390 hdr_val = "Proxy-Connection";
1391 hdr_len = 16;
1392 }
1393
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1394 ctx.idx = 0;
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1395 txn->flags &= ~(TX_CON_KAL_SET|TX_CON_CLO_SET);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1396 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]1397 if (ctx.vlen >= 10 && word_match(ctx.line + ctx.val, ctx.vlen, "keep-alive", 10)) {
1398 txn->flags |= TX_HDR_CONN_KAL;
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1399 if (to_del & 2)
1400 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1401 else
1402 txn->flags |= TX_CON_KAL_SET;
1403 }
1404 else if (ctx.vlen >= 5 && word_match(ctx.line + ctx.val, ctx.vlen, "close", 5)) {
1405 txn->flags |= TX_HDR_CONN_CLO;
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1406 if (to_del & 1)
1407 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1408 else
1409 txn->flags |= TX_CON_CLO_SET;
1410 }
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]1411 else if (ctx.vlen >= 7 && word_match(ctx.line + ctx.val, ctx.vlen, "upgrade", 7)) {
1412 txn->flags |= TX_HDR_CONN_UPG;
1413 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1414 }
1415
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1416 txn->flags |= TX_HDR_CONN_PRS;
1417 return;
1418}
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1419
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1420/* Apply desired changes on the Connection: header. Values may be removed and/or
1421 * added depending on the <wanted> flags, which are exclusively composed of
1422 * TX_CON_CLO_SET and TX_CON_KAL_SET, depending on what flags are desired. The
1423 * TX_CON_*_SET flags are adjusted in txn->flags depending on what is left.
1424 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1425void http_change_connection_header(struct http_txn *txn, struct http_msg *msg, int wanted)
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1426{
1427 struct hdr_ctx ctx;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1428 const char *hdr_val = "Connection";
1429 int hdr_len = 10;
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1430
1431 ctx.idx = 0;
1432
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1433
1434 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1435 hdr_val = "Proxy-Connection";
1436 hdr_len = 16;
1437 }
1438
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1439 txn->flags &= ~(TX_CON_CLO_SET | TX_CON_KAL_SET);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1440 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]1441 if (ctx.vlen >= 10 && word_match(ctx.line + ctx.val, ctx.vlen, "keep-alive", 10)) {
1442 if (wanted & TX_CON_KAL_SET)
1443 txn->flags |= TX_CON_KAL_SET;
1444 else
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1445 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1446 }
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1447 else if (ctx.vlen >= 5 && word_match(ctx.line + ctx.val, ctx.vlen, "close", 5)) {
1448 if (wanted & TX_CON_CLO_SET)
1449 txn->flags |= TX_CON_CLO_SET;
1450 else
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1451 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreau0dfdf192010-01-05 11:33:11 +0100[diff] [blame]1452 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1453 }
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1454
1455 if (wanted == (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
1456 return;
1457
1458 if ((wanted & TX_CON_CLO_SET) && !(txn->flags & TX_CON_CLO_SET)) {
1459 txn->flags |= TX_CON_CLO_SET;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1460 hdr_val = "Connection: close";
1461 hdr_len = 17;
1462 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1463 hdr_val = "Proxy-Connection: close";
1464 hdr_len = 23;
1465 }
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1466 http_header_add_tail2(msg, &txn->hdr_idx, hdr_val, hdr_len);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1467 }
1468
1469 if ((wanted & TX_CON_KAL_SET) && !(txn->flags & TX_CON_KAL_SET)) {
1470 txn->flags |= TX_CON_KAL_SET;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1471 hdr_val = "Connection: keep-alive";
1472 hdr_len = 22;
1473 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1474 hdr_val = "Proxy-Connection: keep-alive";
1475 hdr_len = 28;
1476 }
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1477 http_header_add_tail2(msg, &txn->hdr_idx, hdr_val, hdr_len);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1478 }
1479 return;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1480}
1481
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1482/* Parses a qvalue and returns it multipled by 1000, from 0 to 1000. If the
1483 * value is larger than 1000, it is bound to 1000. The parser consumes up to
1484 * 1 digit, one dot and 3 digits and stops on the first invalid character.
1485 * Unparsable qvalues return 1000 as "q=1.000".
1486 */
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]1487int parse_qvalue(const char *qvalue, const char **end)
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1488{
1489 int q = 1000;
1490
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1491 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1492 goto out;
1493 q = (*qvalue++ - '0') * 1000;
1494
1495 if (*qvalue++ != '.')
1496 goto out;
1497
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1498 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1499 goto out;
1500 q += (*qvalue++ - '0') * 100;
1501
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1502 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1503 goto out;
1504 q += (*qvalue++ - '0') * 10;
1505
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1506 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1507 goto out;
1508 q += (*qvalue++ - '0') * 1;
1509 out:
1510 if (q > 1000)
1511 q = 1000;
Willy Tarreau38b3aa52014-04-22 23:32:05 +0200[diff] [blame]1512 if (end)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]1513 *end = qvalue;
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1514 return q;
1515}
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]1516
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1517void 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]1518{
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]1519 struct proxy *fe = strm_fe(s);
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1520 int tmp = TX_CON_WANT_KAL;
1521
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1522 if (!((fe->options2|s->be->options2) & PR_O2_FAKE_KA)) {
1523 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_TUN ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1524 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_TUN)
1525 tmp = TX_CON_WANT_TUN;
1526
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1527 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1528 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)
1529 tmp = TX_CON_WANT_TUN;
1530 }
1531
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1532 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1533 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL) {
1534 /* option httpclose + server_close => forceclose */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1535 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1536 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)
1537 tmp = TX_CON_WANT_CLO;
1538 else
1539 tmp = TX_CON_WANT_SCL;
1540 }
1541
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1542 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_FCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1543 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_FCL)
1544 tmp = TX_CON_WANT_CLO;
1545
1546 if ((txn->flags & TX_CON_WANT_MSK) < tmp)
1547 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | tmp;
1548
1549 if (!(txn->flags & TX_HDR_CONN_PRS) &&
1550 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) {
1551 /* parse the Connection header and possibly clean it */
1552 int to_del = 0;
1553 if ((msg->flags & HTTP_MSGF_VER_11) ||
1554 ((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1555 !((fe->options2|s->be->options2) & PR_O2_FAKE_KA)))
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1556 to_del |= 2; /* remove "keep-alive" */
1557 if (!(msg->flags & HTTP_MSGF_VER_11))
1558 to_del |= 1; /* remove "close" */
1559 http_parse_connection_header(txn, msg, to_del);
1560 }
1561
1562 /* check if client or config asks for explicit close in KAL/SCL */
1563 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
1564 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) &&
1565 ((txn->flags & TX_HDR_CONN_CLO) || /* "connection: close" */
1566 (!(msg->flags & HTTP_MSGF_VER_11) && !(txn->flags & TX_HDR_CONN_KAL)) || /* no "connection: k-a" in 1.0 */
1567 !(msg->flags & HTTP_MSGF_XFER_LEN) || /* no length known => close */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1568 fe->state == PR_STSTOPPED)) /* frontend is stopping */
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1569 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
1570}
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]1571
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1572/* This stream analyser waits for a complete HTTP request. It returns 1 if the
1573 * processing can continue on next analysers, or zero if it either needs more
1574 * data or wants to immediately abort the request (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1575 * 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]1576 * when it has nothing left to do, and may remove any analyser when it wants to
1577 * abort.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1578 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1579int http_wait_for_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1580{
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1581 /*
1582 * We will parse the partial (or complete) lines.
1583 * We will check the request syntax, and also join multi-line
1584 * headers. An index of all the lines will be elaborated while
1585 * parsing.
1586 *
1587 * For the parsing, we use a 28 states FSM.
1588 *
1589 * Here is the information we currently have :
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1590 * req->buf->p = beginning of request
1591 * req->buf->p + msg->eoh = end of processed headers / start of current one
1592 * req->buf->p + req->buf->i = end of input data
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]1593 * msg->eol = end of current header or line (LF or CRLF)
1594 * msg->next = first non-visited byte
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1595 *
1596 * 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]1597 * we will set a few fields (txn->meth, sn->flags/SF_REDIRECTABLE).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1598 * We also check for monitor-uri, logging, HTTP/0.9 to 1.0 conversion, and
1599 * finally headers capture.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1600 */
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1601
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1602 int cur_idx;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1603 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1604 struct http_txn *txn = s->txn;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1605 struct http_msg *msg = &txn->req;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]1606 struct hdr_ctx ctx;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1607
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1608 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]1609 now_ms, __FUNCTION__,
1610 s,
1611 req,
1612 req->rex, req->wex,
1613 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1614 req->buf->i,
Willy Tarreau6bf17362009-02-24 10:48:35 +0100[diff] [blame]1615 req->analysers);
1616
Willy Tarreau52a0c602009-08-16 22:45:38 +0200[diff] [blame]1617 /* we're speaking HTTP here, so let's speak HTTP to the client */
1618 s->srv_error = http_return_srv_error;
1619
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]1620 /* There's a protected area at the end of the buffer for rewriting
1621 * purposes. We don't want to start to parse the request if the
1622 * protected area is affected, because we may have to move processed
1623 * data later, which is much more complicated.
1624 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1625 if (buffer_not_empty(req->buf) && msg->msg_state < HTTP_MSG_ERROR) {
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200[diff] [blame]1626
1627 /* This point is executed when some data is avalaible for analysis,
1628 * so we log the end of the idle time. */
1629 if (s->logs.t_idle == -1)
1630 s->logs.t_idle = tv_ms_elapsed(&s->logs.tv_accept, &now) - s->logs.t_handshake;
1631
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]1632 if (txn->flags & TX_NOT_FIRST) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]1633 if (unlikely(!channel_is_rewritable(req))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1634 if (req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]1635 goto failed_keep_alive;
Willy Tarreau2ab6eb12010-01-02 22:04:45 +0100[diff] [blame]1636 /* some data has still not left the buffer, wake us once that's done */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]1637 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1638 req->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]1639 req->flags |= CF_WAKE_WRITE;
Willy Tarreau2ab6eb12010-01-02 22:04:45 +0100[diff] [blame]1640 return 0;
1641 }
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]1642 if (unlikely(bi_end(req->buf) < b_ptr(req->buf, msg->next) ||
1643 bi_end(req->buf) > req->buf->data + req->buf->size - global.tune.maxrewrite))
1644 buffer_slow_realign(req->buf);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]1645 }
1646
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1647 if (likely(msg->next < req->buf->i)) /* some unparsed data are available */
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]1648 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]1649 }
1650
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1651 /* 1: we might have to print this header in debug mode */
1652 if (unlikely((global.mode & MODE_DEBUG) &&
1653 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]1654 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1655 char *eol, *sol;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1656
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1657 sol = req->buf->p;
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]1658 /* this is a bit complex : in case of error on the request line,
1659 * we know that rq.l is still zero, so we display only the part
1660 * up to the end of the line (truncated by debug_hdr).
1661 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1662 eol = sol + (msg->sl.rq.l ? msg->sl.rq.l : req->buf->i);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1663 debug_hdr("clireq", s, sol, eol);
Willy Tarreau45e73e32006-12-17 00:05:15 +0100[diff] [blame]1664
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1665 sol += hdr_idx_first_pos(&txn->hdr_idx);
1666 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1667
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1668 while (cur_idx) {
1669 eol = sol + txn->hdr_idx.v[cur_idx].len;
1670 debug_hdr("clihdr", s, sol, eol);
1671 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
1672 cur_idx = txn->hdr_idx.v[cur_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1673 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1674 }
1675
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1676
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1677 /*
1678 * Now we quickly check if we have found a full valid request.
1679 * If not so, we check the FD and buffer states before leaving.
1680 * A full request is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]1681 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1682 * requests are checked first. When waiting for a second request
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1683 * on a keep-alive stream, if we encounter and error, close, t/o,
1684 * we note the error in the stream flags but don't set any state.
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1685 * Since the error will be noted there, it will not be counted by
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1686 * process_stream() as a frontend error.
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1687 * Last, we may increase some tracked counters' http request errors on
1688 * the cases that are deliberately the client's fault. For instance,
1689 * a timeout or connection reset is not counted as an error. However
1690 * a bad request is.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1691 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1692
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]1693 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1694 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1695 * First, let's catch bad requests.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1696 */
Willy Tarreau3e1b6d12010-03-04 23:02:38 +0100[diff] [blame]1697 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1698 stream_inc_http_req_ctr(s);
1699 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1700 proxy_inc_fe_req_ctr(sess->fe);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1701 goto return_bad_req;
Willy Tarreau3e1b6d12010-03-04 23:02:38 +0100[diff] [blame]1702 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1703
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1704 /* 1: Since we are in header mode, if there's no space
1705 * left for headers, we won't be able to free more
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1706 * later, so the stream will never terminate. We
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1707 * must terminate it now.
1708 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1709 if (unlikely(buffer_full(req->buf, global.tune.maxrewrite))) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1710 /* FIXME: check if URI is set and return Status
1711 * 414 Request URI too long instead.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1712 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1713 stream_inc_http_req_ctr(s);
1714 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1715 proxy_inc_fe_req_ctr(sess->fe);
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]1716 if (msg->err_pos < 0)
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1717 msg->err_pos = req->buf->i;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1718 goto return_bad_req;
1719 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1720
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1721 /* 2: have we encountered a read error ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1722 else if (req->flags & CF_READ_ERROR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1723 if (!(s->flags & SF_ERR_MASK))
1724 s->flags |= SF_ERR_CLICL;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1725
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1726 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1727 goto failed_keep_alive;
1728
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]1729 if (sess->fe->options & PR_O_IGNORE_PRB)
1730 goto failed_keep_alive;
1731
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1732 /* we cannot return any message on error */
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1733 if (msg->err_pos >= 0) {
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1734 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]1735 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1736 }
1737
Willy Tarreaudc979f22012-12-04 10:39:01 +0100[diff] [blame]1738 txn->status = 400;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1739 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1740 msg->msg_state = HTTP_MSG_ERROR;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]1741 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1742 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1743 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1744 proxy_inc_fe_req_ctr(sess->fe);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1745 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1746 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]1747 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1748
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1749 if (!(s->flags & SF_FINST_MASK))
1750 s->flags |= SF_FINST_R;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1751 return 0;
1752 }
Willy Tarreauf9839bd2008-08-27 23:57:16 +0200[diff] [blame]1753
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1754 /* 3: has the read timeout expired ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1755 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]1756 if (!(s->flags & SF_ERR_MASK))
1757 s->flags |= SF_ERR_CLITO;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1758
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1759 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1760 goto failed_keep_alive;
1761
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]1762 if (sess->fe->options & PR_O_IGNORE_PRB)
1763 goto failed_keep_alive;
1764
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1765 /* read timeout : give up with an error message. */
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1766 if (msg->err_pos >= 0) {
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1767 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]1768 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1769 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1770 txn->status = 408;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1771 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1772 msg->msg_state = HTTP_MSG_ERROR;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1773 http_reply_and_close(s, txn->status, http_error_message(s));
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1774 req->analysers &= AN_REQ_FLT_END;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1775
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1776 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1777 proxy_inc_fe_req_ctr(sess->fe);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1778 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1779 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]1780 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1781
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1782 if (!(s->flags & SF_FINST_MASK))
1783 s->flags |= SF_FINST_R;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1784 return 0;
1785 }
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]1786
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1787 /* 4: have we encountered a close ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1788 else if (req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1789 if (!(s->flags & SF_ERR_MASK))
1790 s->flags |= SF_ERR_CLICL;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1791
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1792 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1793 goto failed_keep_alive;
1794
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]1795 if (sess->fe->options & PR_O_IGNORE_PRB)
1796 goto failed_keep_alive;
1797
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]1798 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1799 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]1800 txn->status = 400;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1801 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1802 msg->msg_state = HTTP_MSG_ERROR;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1803 http_reply_and_close(s, txn->status, http_error_message(s));
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1804 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1805 stream_inc_http_err_ctr(s);
1806 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1807 proxy_inc_fe_req_ctr(sess->fe);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1808 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1809 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]1810 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1811
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1812 if (!(s->flags & SF_FINST_MASK))
1813 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]1814 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1815 }
1816
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]1817 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1818 req->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1819 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]1820#ifdef TCP_QUICKACK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]1821 if (sess->listener->options & LI_O_NOQUICKACK && req->buf->i &&
1822 objt_conn(sess->origin) && conn_ctrl_ready(__objt_conn(sess->origin))) {
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]1823 /* We need more data, we have to re-enable quick-ack in case we
1824 * previously disabled it, otherwise we might cause the client
1825 * to delay next data.
1826 */
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]1827 setsockopt(__objt_conn(sess->origin)->handle.fd, IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one));
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]1828 }
1829#endif
Willy Tarreau1b194fe2009-03-21 21:10:04 +0100[diff] [blame]1830
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1831 if ((msg->msg_state != HTTP_MSG_RQBEFORE) && (txn->flags & TX_WAIT_NEXT_RQ)) {
1832 /* If the client starts to talk, let's fall back to
1833 * request timeout processing.
1834 */
1835 txn->flags &= ~TX_WAIT_NEXT_RQ;
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]1836 req->analyse_exp = TICK_ETERNITY;
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1837 }
1838
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1839 /* just set the request timeout once at the beginning of the request */
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]1840 if (!tick_isset(req->analyse_exp)) {
1841 if ((msg->msg_state == HTTP_MSG_RQBEFORE) &&
1842 (txn->flags & TX_WAIT_NEXT_RQ) &&
1843 tick_isset(s->be->timeout.httpka))
1844 req->analyse_exp = tick_add(now_ms, s->be->timeout.httpka);
1845 else
1846 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
1847 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1848
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1849 /* we're not ready yet */
1850 return 0;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1851
1852 failed_keep_alive:
1853 /* Here we process low-level errors for keep-alive requests. In
1854 * short, if the request is not the first one and it experiences
1855 * a timeout, read error or shutdown, we just silently close so
1856 * that the client can try again.
1857 */
1858 txn->status = 0;
1859 msg->msg_state = HTTP_MSG_RQBEFORE;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1860 req->analysers &= AN_REQ_FLT_END;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1861 s->logs.logwait = 0;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]1862 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1863 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]1864 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1865 return 0;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1866 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1867
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1868 /* OK now we have a complete HTTP request with indexed headers. Let's
1869 * complete the request parsing by setting a few fields we will need
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1870 * 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]1871 * 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]1872 * points to the CRLF of the request line. msg->next points to the first
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]1873 * byte after the last LF. msg->sov points to the first byte of data.
1874 * msg->eol cannot be trusted because it may have been left uninitialized
1875 * (for instance in the absence of headers).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1876 */
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]1877
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1878 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1879 proxy_inc_fe_req_ctr(sess->fe); /* one more valid request for this FE */
Willy Tarreaud9b587f2010-02-26 10:05:55 +0100[diff] [blame]1880
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]1881 if (txn->flags & TX_WAIT_NEXT_RQ) {
1882 /* kill the pending keep-alive timeout */
1883 txn->flags &= ~TX_WAIT_NEXT_RQ;
1884 req->analyse_exp = TICK_ETERNITY;
1885 }
1886
1887
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1888 /* Maybe we found in invalid header name while we were configured not
1889 * to block on that, so we have to capture it now.
1890 */
1891 if (unlikely(msg->err_pos >= 0))
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]1892 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]1893
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1894 /*
1895 * 1: identify the method
1896 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1897 txn->meth = find_http_meth(req->buf->p, msg->sl.rq.m_l);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1898
1899 /* we can make use of server redirect on GET and HEAD */
1900 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1901 s->flags |= SF_REDIRECTABLE;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200[diff] [blame]1902
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1903 /*
1904 * 2: check if the URI matches the monitor_uri.
1905 * We have to do this for every request which gets in, because
1906 * the monitor-uri is defined by the frontend.
1907 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1908 if (unlikely((sess->fe->monitor_uri_len != 0) &&
1909 (sess->fe->monitor_uri_len == msg->sl.rq.u_l) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1910 !memcmp(req->buf->p + msg->sl.rq.u,
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1911 sess->fe->monitor_uri,
1912 sess->fe->monitor_uri_len))) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1913 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1914 * We have found the monitor URI
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1915 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1916 struct acl_cond *cond;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1917
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1918 s->flags |= SF_MONITOR;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]1919 HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1920
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1921 /* Check if we want to fail this monitor request or not */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1922 list_for_each_entry(cond, &sess->fe->mon_fail_cond, list) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]1923 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]1924
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1925 ret = acl_pass(ret);
1926 if (cond->pol == ACL_COND_UNLESS)
1927 ret = !ret;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1928
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1929 if (ret) {
1930 /* we fail this request, let's return 503 service unavail */
1931 txn->status = 503;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1932 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1933 if (!(s->flags & SF_ERR_MASK))
1934 s->flags |= SF_ERR_LOCAL; /* we don't want a real error here */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1935 goto return_prx_cond;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1936 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1937 }
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100[diff] [blame]1938
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1939 /* nothing to fail, let's reply normaly */
1940 txn->status = 200;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1941 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1942 if (!(s->flags & SF_ERR_MASK))
1943 s->flags |= SF_ERR_LOCAL; /* we don't want a real error here */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1944 goto return_prx_cond;
1945 }
1946
1947 /*
1948 * 3: Maybe we have to copy the original REQURI for the logs ?
1949 * Note: we cannot log anymore if the request has been
1950 * classified as invalid.
1951 */
1952 if (unlikely(s->logs.logwait & LW_REQ)) {
1953 /* we have a complete HTTP request that we must log */
1954 if ((txn->uri = pool_alloc2(pool2_requri)) != NULL) {
1955 int urilen = msg->sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1956
Stéphane Cottin23e9e932017-05-18 08:58:41 +0200[diff] [blame]1957 if (urilen >= global.tune.requri_len )
1958 urilen = global.tune.requri_len - 1;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1959 memcpy(txn->uri, req->buf->p, urilen);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1960 txn->uri[urilen] = 0;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1961
Willy Tarreaud79a3b22012-12-28 09:40:16 +0100[diff] [blame]1962 if (!(s->logs.logwait &= ~(LW_REQ|LW_INIT)))
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1963 s->do_log(s);
1964 } else {
1965 Alert("HTTP logging : out of memory.\n");
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1966 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1967 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]1968
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]1969 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
1970 * exactly one digit "." one digit. This check may be disabled using
1971 * option accept-invalid-http-request.
1972 */
1973 if (!(sess->fe->options2 & PR_O2_REQBUG_OK)) {
1974 if (msg->sl.rq.v_l != 8) {
1975 msg->err_pos = msg->sl.rq.v;
1976 goto return_bad_req;
1977 }
1978
1979 if (req->buf->p[msg->sl.rq.v + 4] != '/' ||
1980 !isdigit((unsigned char)req->buf->p[msg->sl.rq.v + 5]) ||
1981 req->buf->p[msg->sl.rq.v + 6] != '.' ||
1982 !isdigit((unsigned char)req->buf->p[msg->sl.rq.v + 7])) {
1983 msg->err_pos = msg->sl.rq.v + 4;
1984 goto return_bad_req;
1985 }
1986 }
Willy Tarreau13317662015-05-01 13:47:08 +0200[diff] [blame]1987 else {
1988 /* 4. We may have to convert HTTP/0.9 requests to HTTP/1.0 */
1989 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
1990 goto return_bad_req;
1991 }
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]1992
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1993 /* ... and check if the request is HTTP/1.1 or above */
1994 if ((msg->sl.rq.v_l == 8) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1995 ((req->buf->p[msg->sl.rq.v + 5] > '1') ||
1996 ((req->buf->p[msg->sl.rq.v + 5] == '1') &&
1997 (req->buf->p[msg->sl.rq.v + 7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]1998 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1999
2000 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]2001 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]2002
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2003 /* if the frontend has "option http-use-proxy-header", we'll check if
2004 * we have what looks like a proxied connection instead of a connection,
2005 * and in this case set the TX_USE_PX_CONN flag to use Proxy-connection.
2006 * Note that this is *not* RFC-compliant, however browsers and proxies
2007 * happen to do that despite being non-standard :-(
2008 * We consider that a request not beginning with either '/' or '*' is
2009 * a proxied connection, which covers both "scheme://location" and
2010 * CONNECT ip:port.
2011 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2012 if ((sess->fe->options2 & PR_O2_USE_PXHDR) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2013 req->buf->p[msg->sl.rq.u] != '/' && req->buf->p[msg->sl.rq.u] != '*')
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2014 txn->flags |= TX_USE_PX_CONN;
2015
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2016 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2017 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2018
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2019 /* 5: we may need to capture headers */
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]2020 if (unlikely((s->logs.logwait & LW_REQHDR) && s->req_cap))
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2021 capture_headers(req->buf->p, &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]2022 s->req_cap, sess->fe->req_cap);
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]2023
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2024 /* 6: determine the transfer-length according to RFC2616 #4.4, updated
2025 * by RFC7230#3.3.3 :
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2026 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2027 * The length of a message body is determined by one of the following
2028 * (in order of precedence):
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2029 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2030 * 1. Any response to a HEAD request and any response with a 1xx
2031 * (Informational), 204 (No Content), or 304 (Not Modified) status
2032 * code is always terminated by the first empty line after the
2033 * header fields, regardless of the header fields present in the
2034 * message, and thus cannot contain a message body.
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2035 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2036 * 2. Any 2xx (Successful) response to a CONNECT request implies that
2037 * the connection will become a tunnel immediately after the empty
2038 * line that concludes the header fields. A client MUST ignore any
2039 * Content-Length or Transfer-Encoding header fields received in
2040 * such a message.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2041 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2042 * 3. If a Transfer-Encoding header field is present and the chunked
2043 * transfer coding (Section 4.1) is the final encoding, the message
2044 * body length is determined by reading and decoding the chunked
2045 * data until the transfer coding indicates the data is complete.
2046 *
2047 * If a Transfer-Encoding header field is present in a response and
2048 * the chunked transfer coding is not the final encoding, the
2049 * message body length is determined by reading the connection until
2050 * it is closed by the server. If a Transfer-Encoding header field
2051 * is present in a request and the chunked transfer coding is not
2052 * the final encoding, the message body length cannot be determined
2053 * reliably; the server MUST respond with the 400 (Bad Request)
2054 * status code and then close the connection.
2055 *
2056 * If a message is received with both a Transfer-Encoding and a
2057 * Content-Length header field, the Transfer-Encoding overrides the
2058 * Content-Length. Such a message might indicate an attempt to
2059 * perform request smuggling (Section 9.5) or response splitting
2060 * (Section 9.4) and ought to be handled as an error. A sender MUST
2061 * remove the received Content-Length field prior to forwarding such
2062 * a message downstream.
2063 *
2064 * 4. If a message is received without Transfer-Encoding and with
2065 * either multiple Content-Length header fields having differing
2066 * field-values or a single Content-Length header field having an
2067 * invalid value, then the message framing is invalid and the
2068 * recipient MUST treat it as an unrecoverable error. If this is a
2069 * request message, the server MUST respond with a 400 (Bad Request)
2070 * status code and then close the connection. If this is a response
2071 * message received by a proxy, the proxy MUST close the connection
2072 * to the server, discard the received response, and send a 502 (Bad
2073 * Gateway) response to the client. If this is a response message
2074 * received by a user agent, the user agent MUST close the
2075 * connection to the server and discard the received response.
2076 *
2077 * 5. If a valid Content-Length header field is present without
2078 * Transfer-Encoding, its decimal value defines the expected message
2079 * body length in octets. If the sender closes the connection or
2080 * the recipient times out before the indicated number of octets are
2081 * received, the recipient MUST consider the message to be
2082 * incomplete and close the connection.
2083 *
2084 * 6. If this is a request message and none of the above are true, then
2085 * the message body length is zero (no message body is present).
2086 *
2087 * 7. Otherwise, this is a response message without a declared message
2088 * body length, so the message body length is determined by the
2089 * number of octets received prior to the server closing the
2090 * connection.
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2091 */
2092
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2093 ctx.idx = 0;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2094 /* set TE_CHNK and XFER_LEN only if "chunked" is seen last */
Willy Tarreau4979d5c2015-05-01 10:06:30 +0200[diff] [blame]2095 while (http_find_header2("Transfer-Encoding", 17, req->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2096 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]2097 msg->flags |= HTTP_MSGF_TE_CHNK;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2098 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2099 /* chunked not last, return badreq */
2100 goto return_bad_req;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2101 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2102 }
2103
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]2104 /* Chunked requests must have their content-length removed */
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2105 ctx.idx = 0;
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]2106 if (msg->flags & HTTP_MSGF_TE_CHNK) {
2107 while (http_find_header2("Content-Length", 14, req->buf->p, &txn->hdr_idx, &ctx))
2108 http_remove_header2(msg, &txn->hdr_idx, &ctx);
2109 }
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2110 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]2111 signed long long cl;
2112
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2113 if (!ctx.vlen) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2114 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2115 goto return_bad_req;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2116 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2117
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2118 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2119 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2120 goto return_bad_req; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2121 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2122
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2123 if (cl < 0) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2124 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2125 goto return_bad_req;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2126 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2127
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2128 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2129 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2130 goto return_bad_req; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2131 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2132
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]2133 msg->flags |= HTTP_MSGF_CNT_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]2134 msg->body_len = msg->chunk_len = cl;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2135 }
2136
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2137 /* even bodyless requests have a known length */
2138 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2139
Willy Tarreau179085c2014-04-28 16:48:56 +0200[diff] [blame]2140 /* Until set to anything else, the connection mode is set as Keep-Alive. It will
2141 * only change if both the request and the config reference something else.
2142 * Option httpclose by itself sets tunnel mode where headers are mangled.
2143 * However, if another mode is set, it will affect it (eg: server-close/
2144 * keep-alive + httpclose = close). Note that we avoid to redo the same work
2145 * if FE and BE have the same settings (common). The method consists in
2146 * checking if options changed between the two calls (implying that either
2147 * one is non-null, or one of them is non-null and we are there for the first
2148 * time.
2149 */
2150 if (!(txn->flags & TX_HDR_CONN_PRS) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2151 ((sess->fe->options & PR_O_HTTP_MODE) != (s->be->options & PR_O_HTTP_MODE)))
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2152 http_adjust_conn_mode(s, txn, msg);
Willy Tarreau179085c2014-04-28 16:48:56 +0200[diff] [blame]2153
Willy Tarreau9fbe18e2015-05-01 22:42:08 +0200[diff] [blame]2154 /* we may have to wait for the request's body */
2155 if ((s->be->options & PR_O_WREQ_BODY) &&
2156 (msg->body_len || (msg->flags & HTTP_MSGF_TE_CHNK)))
2157 req->analysers |= AN_REQ_HTTP_BODY;
2158
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2159 /* end of job, return OK */
Willy Tarreau3a816292009-07-07 10:55:49 +0200[diff] [blame]2160 req->analysers &= ~an_bit;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2161 req->analyse_exp = TICK_ETERNITY;
2162 return 1;
2163
2164 return_bad_req:
2165 /* We centralize bad requests processing here */
2166 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
2167 /* we detected a parsing error. We want to archive this request
2168 * in the dedicated proxy area for later troubleshooting.
2169 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]2170 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]2171 }
2172
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2173 txn->req.err_state = txn->req.msg_state;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2174 txn->req.msg_state = HTTP_MSG_ERROR;
2175 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]2176 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]2177
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]2178 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]2179 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]2180 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2181
2182 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2183 if (!(s->flags & SF_ERR_MASK))
2184 s->flags |= SF_ERR_PRXCOND;
2185 if (!(s->flags & SF_FINST_MASK))
2186 s->flags |= SF_FINST_R;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2187
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]2188 req->analysers &= AN_REQ_FLT_END;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2189 req->analyse_exp = TICK_ETERNITY;
2190 return 0;
2191}
2192
Willy Tarreau4f8a83c2012-06-04 00:26:23 +0200[diff] [blame]2193
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2194/* This function prepares an applet to handle the stats. It can deal with the
2195 * "100-continue" expectation, check that admin rules are met for POST requests,
2196 * and program a response message if something was unexpected. It cannot fail
2197 * 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]2198 * analysers nor counters, which are left to the caller. It does not touch
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2199 * s->target which is supposed to already point to the stats applet. The caller
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2200 * is expected to have already assigned an appctx to the stream.
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2201 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2202int http_handle_stats(struct stream *s, struct channel *req)
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2203{
2204 struct stats_admin_rule *stats_admin_rule;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]2205 struct stream_interface *si = &s->si[1];
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2206 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2207 struct http_txn *txn = s->txn;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2208 struct http_msg *msg = &txn->req;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2209 struct uri_auth *uri_auth = s->be->uri_auth;
2210 const char *uri, *h, *lookup;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2211 struct appctx *appctx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2212
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2213 appctx = si_appctx(si);
2214 memset(&appctx->ctx.stats, 0, sizeof(appctx->ctx.stats));
2215 appctx->st1 = appctx->st2 = 0;
2216 appctx->ctx.stats.st_code = STAT_STATUS_INIT;
2217 appctx->ctx.stats.flags |= STAT_FMT_HTML; /* assume HTML mode by default */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2218 if ((msg->flags & HTTP_MSGF_VER_11) && (s->txn->meth != HTTP_METH_HEAD))
Willy Tarreauaf3cf702014-04-22 22:19:53 +0200[diff] [blame]2219 appctx->ctx.stats.flags |= STAT_CHUNKED;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2220
2221 uri = msg->chn->buf->p + msg->sl.rq.u;
2222 lookup = uri + uri_auth->uri_len;
2223
2224 for (h = lookup; h <= uri + msg->sl.rq.u_l - 3; h++) {
2225 if (memcmp(h, ";up", 3) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2226 appctx->ctx.stats.flags |= STAT_HIDE_DOWN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2227 break;
2228 }
2229 }
2230
2231 if (uri_auth->refresh) {
2232 for (h = lookup; h <= uri + msg->sl.rq.u_l - 10; h++) {
2233 if (memcmp(h, ";norefresh", 10) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2234 appctx->ctx.stats.flags |= STAT_NO_REFRESH;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2235 break;
2236 }
2237 }
2238 }
2239
2240 for (h = lookup; h <= uri + msg->sl.rq.u_l - 4; h++) {
2241 if (memcmp(h, ";csv", 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2242 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2243 break;
2244 }
2245 }
2246
Willy Tarreau1e62df92016-01-11 18:57:53 +0100[diff] [blame]2247 for (h = lookup; h <= uri + msg->sl.rq.u_l - 6; h++) {
2248 if (memcmp(h, ";typed", 6) == 0) {
2249 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
2250 appctx->ctx.stats.flags |= STAT_FMT_TYPED;
2251 break;
2252 }
2253 }
2254
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2255 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
2256 if (memcmp(h, ";st=", 4) == 0) {
2257 int i;
2258 h += 4;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2259 appctx->ctx.stats.st_code = STAT_STATUS_UNKN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2260 for (i = STAT_STATUS_INIT + 1; i < STAT_STATUS_SIZE; i++) {
2261 if (strncmp(stat_status_codes[i], h, 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2262 appctx->ctx.stats.st_code = i;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2263 break;
2264 }
2265 }
2266 break;
2267 }
2268 }
2269
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2270 appctx->ctx.stats.scope_str = 0;
2271 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2272 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
2273 if (memcmp(h, STAT_SCOPE_INPUT_NAME "=", strlen(STAT_SCOPE_INPUT_NAME) + 1) == 0) {
2274 int itx = 0;
2275 const char *h2;
2276 char scope_txt[STAT_SCOPE_TXT_MAXLEN + 1];
2277 const char *err;
2278
2279 h += strlen(STAT_SCOPE_INPUT_NAME) + 1;
2280 h2 = h;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2281 appctx->ctx.stats.scope_str = h2 - msg->chn->buf->p;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2282 while (*h != ';' && *h != '\0' && *h != '&' && *h != ' ' && *h != '\n') {
2283 itx++;
2284 h++;
2285 }
2286
2287 if (itx > STAT_SCOPE_TXT_MAXLEN)
2288 itx = STAT_SCOPE_TXT_MAXLEN;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2289 appctx->ctx.stats.scope_len = itx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2290
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2291 /* 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]2292 memcpy(scope_txt, h2, itx);
2293 scope_txt[itx] = '\0';
2294 err = invalid_char(scope_txt);
2295 if (err) {
2296 /* bad char in search text => clear scope */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2297 appctx->ctx.stats.scope_str = 0;
2298 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2299 }
2300 break;
2301 }
2302 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2303
2304 /* now check whether we have some admin rules for this request */
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2305 list_for_each_entry(stats_admin_rule, &uri_auth->admin_rules, list) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2306 int ret = 1;
2307
2308 if (stats_admin_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2309 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]2310 ret = acl_pass(ret);
2311 if (stats_admin_rule->cond->pol == ACL_COND_UNLESS)
2312 ret = !ret;
2313 }
2314
2315 if (ret) {
2316 /* no rule, or the rule matches */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2317 appctx->ctx.stats.flags |= STAT_ADMIN;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2318 break;
2319 }
2320 }
2321
2322 /* Was the status page requested with a POST ? */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]2323 if (unlikely(txn->meth == HTTP_METH_POST && txn->req.body_len > 0)) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2324 if (appctx->ctx.stats.flags & STAT_ADMIN) {
Willy Tarreaucfe7fdd2014-04-26 22:08:32 +0200[diff] [blame]2325 /* we'll need the request body, possibly after sending 100-continue */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]2326 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE)
2327 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2328 appctx->st0 = STAT_HTTP_POST;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2329 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2330 else {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2331 appctx->ctx.stats.st_code = STAT_STATUS_DENY;
2332 appctx->st0 = STAT_HTTP_LAST;
de Lafond Guillaume88c278f2013-04-15 19:27:10 +0200[diff] [blame]2333 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2334 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2335 else {
2336 /* So it was another method (GET/HEAD) */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2337 appctx->st0 = STAT_HTTP_HEAD;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2338 }
2339
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2340 s->task->nice = -32; /* small boost for HTTP statistics */
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2341 return 1;
2342}
2343
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2344/* Sets the TOS header in IPv4 and the traffic class header in IPv6 packets
2345 * (as per RFC3260 #4 and BCP37 #4.2 and #5.2).
2346 */
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2347void inet_set_tos(int fd, const struct sockaddr_storage *from, int tos)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2348{
2349#ifdef IP_TOS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2350 if (from->ss_family == AF_INET)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2351 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
2352#endif
2353#ifdef IPV6_TCLASS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2354 if (from->ss_family == AF_INET6) {
2355 if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)from)->sin6_addr))
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2356 /* v4-mapped addresses need IP_TOS */
2357 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
2358 else
2359 setsockopt(fd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof(tos));
2360 }
2361#endif
2362}
2363
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2364int http_transform_header_str(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2365 const char* name, unsigned int name_len,
2366 const char *str, struct my_regex *re,
2367 int action)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2368{
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2369 struct hdr_ctx ctx;
2370 char *buf = msg->chn->buf->p;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2371 struct hdr_idx *idx = &s->txn->hdr_idx;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2372 int (*http_find_hdr_func)(const char *name, int len, char *sol,
2373 struct hdr_idx *idx, struct hdr_ctx *ctx);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2374 struct chunk *output = get_trash_chunk();
2375
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2376 ctx.idx = 0;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2377
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2378 /* Choose the header browsing function. */
2379 switch (action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2380 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2381 http_find_hdr_func = http_find_header2;
2382 break;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2383 case ACT_HTTP_REPLACE_HDR:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2384 http_find_hdr_func = http_find_full_header2;
2385 break;
2386 default: /* impossible */
2387 return -1;
2388 }
2389
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2390 while (http_find_hdr_func(name, name_len, buf, idx, &ctx)) {
2391 struct hdr_idx_elem *hdr = idx->v + ctx.idx;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2392 int delta;
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2393 char *val = ctx.line + ctx.val;
2394 char* val_end = val + ctx.vlen;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2395
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2396 if (!regex_exec_match2(re, val, val_end-val, MAX_MATCH, pmatch, 0))
2397 continue;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2398
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2399 output->len = exp_replace(output->str, output->size, val, str, pmatch);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2400 if (output->len == -1)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2401 return -1;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2402
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2403 delta = buffer_replace2(msg->chn->buf, val, val_end, output->str, output->len);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2404
2405 hdr->len += delta;
2406 http_msg_move_end(msg, delta);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2407
2408 /* Adjust the length of the current value of the index. */
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2409 ctx.vlen += delta;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2410 }
2411
2412 return 0;
2413}
2414
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2415static int http_transform_header(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2416 const char* name, unsigned int name_len,
2417 struct list *fmt, struct my_regex *re,
2418 int action)
2419{
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2420 struct chunk *replace;
2421 int ret = -1;
2422
2423 replace = alloc_trash_chunk();
2424 if (!replace)
2425 goto leave;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2426
2427 replace->len = build_logline(s, replace->str, replace->size, fmt);
2428 if (replace->len >= replace->size - 1)
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2429 goto leave;
2430
2431 ret = http_transform_header_str(s, msg, name, name_len, replace->str, re, action);
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2432
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2433 leave:
2434 free_trash_chunk(replace);
2435 return ret;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2436}
2437
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2438/* Executes the http-request rules <rules> for stream <s>, proxy <px> and
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2439 * transaction <txn>. Returns the verdict of the first rule that prevents
2440 * further processing of the request (auth, deny, ...), and defaults to
2441 * HTTP_RULE_RES_STOP if it executed all rules or stopped on an allow, or
2442 * 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]2443 * on txn->flags if it encounters a tarpit rule. If <deny_status> is not NULL
2444 * and a deny/tarpit rule is matched, it will be filled with this rule's deny
2445 * status.
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2446 */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2447enum rule_result
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2448http_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]2449{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2450 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2451 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]2452 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]2453 struct act_rule *rule;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]2454 struct hdr_ctx ctx;
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]2455 const char *auth_realm;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2456 int act_flags = 0;
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2457 int len;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2458
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2459 /* If "the current_rule_list" match the executed rule list, we are in
2460 * resume condition. If a resume is needed it is always in the action
2461 * and never in the ACL or converters. In this case, we initialise the
2462 * current rule, and go to the action execution point.
2463 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2464 if (s->current_rule) {
2465 rule = s->current_rule;
2466 s->current_rule = NULL;
2467 if (s->current_rule_list == rules)
2468 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2469 }
2470 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2471
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2472 list_for_each_entry(rule, rules, list) {
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2473
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2474 /* check optional condition */
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2475 if (rule->cond) {
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2476 int ret;
2477
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2478 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]2479 ret = acl_pass(ret);
2480
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2481 if (rule->cond->pol == ACL_COND_UNLESS)
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2482 ret = !ret;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2483
2484 if (!ret) /* condition not matched */
2485 continue;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2486 }
2487
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2488 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2489resume_execution:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2490 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2491 case ACT_ACTION_ALLOW:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2492 return HTTP_RULE_RES_STOP;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2493
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2494 case ACT_ACTION_DENY:
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2495 if (deny_status)
2496 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2497 return HTTP_RULE_RES_DENY;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2498
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2499 case ACT_HTTP_REQ_TARPIT:
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]2500 txn->flags |= TX_CLTARPIT;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2501 if (deny_status)
2502 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2503 return HTTP_RULE_RES_DENY;
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]2504
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2505 case ACT_HTTP_REQ_AUTH:
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]2506 /* Auth might be performed on regular http-req rules as well as on stats */
2507 auth_realm = rule->arg.auth.realm;
2508 if (!auth_realm) {
2509 if (px->uri_auth && rules == &px->uri_auth->http_req_rules)
2510 auth_realm = STATS_DEFAULT_REALM;
2511 else
2512 auth_realm = px->id;
2513 }
2514 /* send 401/407 depending on whether we use a proxy or not. We still
2515 * count one error, because normal browsing won't significantly
2516 * increase the counter but brute force attempts will.
2517 */
2518 chunk_printf(&trash, (txn->flags & TX_USE_PX_CONN) ? HTTP_407_fmt : HTTP_401_fmt, auth_realm);
2519 txn->status = (txn->flags & TX_USE_PX_CONN) ? 407 : 401;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2520 http_reply_and_close(s, txn->status, &trash);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2521 stream_inc_http_err_ctr(s);
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2522 return HTTP_RULE_RES_ABRT;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2523
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2524 case ACT_HTTP_REDIR:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2525 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
2526 return HTTP_RULE_RES_BADREQ;
2527 return HTTP_RULE_RES_DONE;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]2528
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2529 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]2530 s->task->nice = rule->arg.nice;
2531 break;
2532
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2533 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2534 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2535 inet_set_tos(cli_conn->handle.fd, &cli_conn->addr.from, rule->arg.tos);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]2536 break;
2537
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2538 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2539#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2540 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2541 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]2542#endif
2543 break;
2544
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2545 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]2546 s->logs.level = rule->arg.loglevel;
2547 break;
2548
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2549 case ACT_HTTP_REPLACE_HDR:
2550 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2551 if (http_transform_header(s, &txn->req, rule->arg.hdr_add.name,
2552 rule->arg.hdr_add.name_len,
2553 &rule->arg.hdr_add.fmt,
2554 &rule->arg.hdr_add.re, rule->action))
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2555 return HTTP_RULE_RES_BADREQ;
2556 break;
2557
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2558 case ACT_HTTP_DEL_HDR:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2559 ctx.idx = 0;
2560 /* remove all occurrences of the header */
2561 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2562 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
2563 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]2564 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2565 break;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2566
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2567 case ACT_HTTP_SET_HDR:
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2568 case ACT_HTTP_ADD_HDR: {
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2569 /* The scope of the trash buffer must be limited to this function. The
2570 * build_logline() function can execute a lot of other function which
2571 * can use the trash buffer. So for limiting the scope of this global
2572 * buffer, we build first the header value using build_logline, and
2573 * after we store the header name.
2574 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2575 struct chunk *replace;
2576
2577 replace = alloc_trash_chunk();
2578 if (!replace)
2579 return HTTP_RULE_RES_BADREQ;
2580
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2581 len = rule->arg.hdr_add.name_len + 2,
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2582 len += build_logline(s, replace->str + len, replace->size - len, &rule->arg.hdr_add.fmt);
2583 memcpy(replace->str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
2584 replace->str[rule->arg.hdr_add.name_len] = ':';
2585 replace->str[rule->arg.hdr_add.name_len + 1] = ' ';
2586 replace->len = len;
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2587
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2588 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2589 /* remove all occurrences of the header */
2590 ctx.idx = 0;
2591 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2592 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
2593 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
2594 }
2595 }
2596
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2597 http_header_add_tail2(&txn->req, &txn->hdr_idx, replace->str, replace->len);
2598
2599 free_trash_chunk(replace);
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2600 break;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2601 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2602
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2603 case ACT_HTTP_DEL_ACL:
2604 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2605 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2606 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2607
2608 /* collect reference */
2609 ref = pat_ref_lookup(rule->arg.map.ref);
2610 if (!ref)
2611 continue;
2612
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2613 /* allocate key */
2614 key = alloc_trash_chunk();
2615 if (!key)
2616 return HTTP_RULE_RES_BADREQ;
2617
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2618 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2619 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2620 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2621
2622 /* perform update */
2623 /* returned code: 1=ok, 0=ko */
Emeric Brunb5997f72017-07-03 11:34:05 +0200[diff] [blame]2624 SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2625 pat_ref_delete(ref, key->str);
Emeric Brunb5997f72017-07-03 11:34:05 +0200[diff] [blame]2626 SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2627
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2628 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2629 break;
2630 }
2631
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2632 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2633 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2634 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2635
2636 /* collect reference */
2637 ref = pat_ref_lookup(rule->arg.map.ref);
2638 if (!ref)
2639 continue;
2640
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2641 /* allocate key */
2642 key = alloc_trash_chunk();
2643 if (!key)
2644 return HTTP_RULE_RES_BADREQ;
2645
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2646 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2647 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2648 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2649
2650 /* perform update */
2651 /* add entry only if it does not already exist */
Emeric Brunb5997f72017-07-03 11:34:05 +0200[diff] [blame]2652 SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2653 if (pat_ref_find_elt(ref, key->str) == NULL)
2654 pat_ref_add(ref, key->str, NULL, NULL);
Emeric Brunb5997f72017-07-03 11:34:05 +0200[diff] [blame]2655 SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2656
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2657 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2658 break;
2659 }
2660
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2661 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2662 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2663 struct chunk *key, *value;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2664
2665 /* collect reference */
2666 ref = pat_ref_lookup(rule->arg.map.ref);
2667 if (!ref)
2668 continue;
2669
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2670 /* allocate key */
2671 key = alloc_trash_chunk();
2672 if (!key)
2673 return HTTP_RULE_RES_BADREQ;
2674
2675 /* allocate value */
2676 value = alloc_trash_chunk();
2677 if (!value) {
2678 free_trash_chunk(key);
2679 return HTTP_RULE_RES_BADREQ;
2680 }
2681
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2682 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2683 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2684 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2685
2686 /* collect value */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2687 value->len = build_logline(s, value->str, value->size, &rule->arg.map.value);
2688 value->str[value->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2689
2690 /* perform update */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2691 if (pat_ref_find_elt(ref, key->str) != NULL)
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2692 /* update entry if it exists */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2693 pat_ref_set(ref, key->str, value->str, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2694 else
2695 /* insert a new entry */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2696 pat_ref_add(ref, key->str, value->str, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2697
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2698 free_trash_chunk(key);
2699 free_trash_chunk(value);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2700 break;
2701 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]2702
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]2703 case ACT_CUSTOM:
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2704 if ((px->options & PR_O_ABRT_CLOSE) && (s->req.flags & (CF_SHUTR|CF_READ_NULL|CF_READ_ERROR)))
2705 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]2706
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2707 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]2708 case ACT_RET_ERR:
2709 case ACT_RET_CONT:
2710 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]2711 case ACT_RET_STOP:
2712 return HTTP_RULE_RES_DONE;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]2713 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2714 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2715 return HTTP_RULE_RES_YIELD;
2716 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]2717 break;
2718
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2719 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2720 /* Note: only the first valid tracking parameter of each
2721 * applies.
2722 */
2723
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2724 if (stkctr_entry(&s->stkctr[trk_idx(rule->action)]) == NULL) {
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2725 struct stktable *t;
2726 struct stksess *ts;
2727 struct stktable_key *key;
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]2728 void *ptr1, *ptr2;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2729
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]2730 t = rule->arg.trk_ctr.table.t;
2731 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]2732
2733 if (key && (ts = stktable_get_entry(t, key))) {
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2734 stream_track_stkctr(&s->stkctr[trk_idx(rule->action)], t, ts);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2735
2736 /* 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]2737 ptr1 = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
2738 ptr2 = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
2739 if (ptr1 || ptr2) {
2740 RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2741
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]2742 if (ptr1)
2743 stktable_data_cast(ptr1, http_req_cnt)++;
2744
2745 if (ptr2)
2746 update_freq_ctr_period(&stktable_data_cast(ptr2, http_req_rate),
2747 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
2748
2749 RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
2750 }
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2751
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2752 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2753 if (sess->fe != s->be)
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]2754 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2755 }
2756 }
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]2757 break;
2758
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]2759 /* other flags exists, but normaly, they never be matched. */
2760 default:
2761 break;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2762 }
2763 }
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2764
2765 /* we reached the end of the rules, nothing to report */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2766 return HTTP_RULE_RES_CONT;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2767}
2768
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]2769
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]2770/* Executes the http-response rules <rules> for stream <s> and proxy <px>. It
2771 * returns one of 5 possible statuses: HTTP_RULE_RES_CONT, HTTP_RULE_RES_STOP,
2772 * HTTP_RULE_RES_DONE, HTTP_RULE_RES_YIELD, or HTTP_RULE_RES_BADREQ. If *CONT
2773 * is returned, the process can continue the evaluation of next rule list. If
2774 * *STOP or *DONE is returned, the process must stop the evaluation. If *BADREQ
2775 * is returned, it means the operation could not be processed and a server error
2776 * must be returned. It may set the TX_SVDENY on txn->flags if it encounters a
2777 * deny rule. If *YIELD is returned, the caller must call again the function
2778 * with the same context.
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2779 */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2780static enum rule_result
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2781http_res_get_intercept_rule(struct proxy *px, struct list *rules, struct stream *s)
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2782{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2783 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2784 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]2785 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]2786 struct act_rule *rule;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2787 struct hdr_ctx ctx;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2788 int act_flags = 0;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2789
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2790 /* If "the current_rule_list" match the executed rule list, we are in
2791 * resume condition. If a resume is needed it is always in the action
2792 * and never in the ACL or converters. In this case, we initialise the
2793 * current rule, and go to the action execution point.
2794 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2795 if (s->current_rule) {
2796 rule = s->current_rule;
2797 s->current_rule = NULL;
2798 if (s->current_rule_list == rules)
2799 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2800 }
2801 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2802
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2803 list_for_each_entry(rule, rules, list) {
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2804
2805 /* check optional condition */
2806 if (rule->cond) {
2807 int ret;
2808
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2809 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]2810 ret = acl_pass(ret);
2811
2812 if (rule->cond->pol == ACL_COND_UNLESS)
2813 ret = !ret;
2814
2815 if (!ret) /* condition not matched */
2816 continue;
2817 }
2818
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2819 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2820resume_execution:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2821 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2822 case ACT_ACTION_ALLOW:
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2823 return HTTP_RULE_RES_STOP; /* "allow" rules are OK */
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2824
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2825 case ACT_ACTION_DENY:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2826 txn->flags |= TX_SVDENY;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2827 return HTTP_RULE_RES_STOP;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2828
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2829 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]2830 s->task->nice = rule->arg.nice;
2831 break;
2832
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2833 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2834 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2835 inet_set_tos(cli_conn->handle.fd, &cli_conn->addr.from, rule->arg.tos);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]2836 break;
2837
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2838 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2839#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2840 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2841 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]2842#endif
2843 break;
2844
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2845 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]2846 s->logs.level = rule->arg.loglevel;
2847 break;
2848
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2849 case ACT_HTTP_REPLACE_HDR:
2850 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2851 if (http_transform_header(s, &txn->rsp, rule->arg.hdr_add.name,
2852 rule->arg.hdr_add.name_len,
2853 &rule->arg.hdr_add.fmt,
2854 &rule->arg.hdr_add.re, rule->action))
Christopher Fauletcdade942017-02-08 12:41:31 +0100[diff] [blame]2855 return HTTP_RULE_RES_BADREQ;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2856 break;
2857
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2858 case ACT_HTTP_DEL_HDR:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2859 ctx.idx = 0;
2860 /* remove all occurrences of the header */
2861 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2862 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
2863 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
2864 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2865 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2866
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2867 case ACT_HTTP_SET_HDR:
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2868 case ACT_HTTP_ADD_HDR: {
2869 struct chunk *replace;
2870
2871 replace = alloc_trash_chunk();
2872 if (!replace)
2873 return HTTP_RULE_RES_BADREQ;
2874
2875 chunk_printf(replace, "%s: ", rule->arg.hdr_add.name);
2876 memcpy(replace->str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
2877 replace->len = rule->arg.hdr_add.name_len;
2878 replace->str[replace->len++] = ':';
2879 replace->str[replace->len++] = ' ';
2880 replace->len += build_logline(s, replace->str + replace->len, replace->size - replace->len,
2881 &rule->arg.hdr_add.fmt);
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2882
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2883 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2884 /* remove all occurrences of the header */
2885 ctx.idx = 0;
2886 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2887 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
2888 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
2889 }
2890 }
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2891 http_header_add_tail2(&txn->rsp, &txn->hdr_idx, replace->str, replace->len);
2892
2893 free_trash_chunk(replace);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2894 break;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2895 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2896
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2897 case ACT_HTTP_DEL_ACL:
2898 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2899 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2900 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2901
2902 /* collect reference */
2903 ref = pat_ref_lookup(rule->arg.map.ref);
2904 if (!ref)
2905 continue;
2906
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2907 /* allocate key */
2908 key = alloc_trash_chunk();
2909 if (!key)
2910 return HTTP_RULE_RES_BADREQ;
2911
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2912 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2913 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2914 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2915
2916 /* perform update */
2917 /* returned code: 1=ok, 0=ko */
Emeric Brunb5997f72017-07-03 11:34:05 +0200[diff] [blame]2918 SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2919 pat_ref_delete(ref, key->str);
Emeric Brunb5997f72017-07-03 11:34:05 +0200[diff] [blame]2920 SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2921
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2922 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2923 break;
2924 }
2925
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2926 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2927 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2928 struct chunk *key;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2929
2930 /* collect reference */
2931 ref = pat_ref_lookup(rule->arg.map.ref);
2932 if (!ref)
2933 continue;
2934
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2935 /* allocate key */
2936 key = alloc_trash_chunk();
2937 if (!key)
2938 return HTTP_RULE_RES_BADREQ;
2939
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2940 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2941 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2942 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2943
2944 /* perform update */
2945 /* check if the entry already exists */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2946 if (pat_ref_find_elt(ref, key->str) == NULL)
2947 pat_ref_add(ref, key->str, NULL, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2948
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2949 free_trash_chunk(key);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2950 break;
2951 }
2952
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2953 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2954 struct pat_ref *ref;
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2955 struct chunk *key, *value;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2956
2957 /* collect reference */
2958 ref = pat_ref_lookup(rule->arg.map.ref);
2959 if (!ref)
2960 continue;
2961
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2962 /* allocate key */
2963 key = alloc_trash_chunk();
2964 if (!key)
2965 return HTTP_RULE_RES_BADREQ;
2966
2967 /* allocate value */
2968 value = alloc_trash_chunk();
2969 if (!value) {
2970 free_trash_chunk(key);
2971 return HTTP_RULE_RES_BADREQ;
2972 }
2973
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2974 /* collect key */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2975 key->len = build_logline(s, key->str, key->size, &rule->arg.map.key);
2976 key->str[key->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2977
2978 /* collect value */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2979 value->len = build_logline(s, value->str, value->size, &rule->arg.map.value);
2980 value->str[value->len] = '\0';
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2981
2982 /* perform update */
Emeric Brunb5997f72017-07-03 11:34:05 +0200[diff] [blame]2983 SPIN_LOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2984 if (pat_ref_find_elt(ref, key->str) != NULL)
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2985 /* update entry if it exists */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2986 pat_ref_set(ref, key->str, value->str, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2987 else
2988 /* insert a new entry */
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2989 pat_ref_add(ref, key->str, value->str, NULL);
Emeric Brunb5997f72017-07-03 11:34:05 +0200[diff] [blame]2990 SPIN_UNLOCK(PATREF_LOCK, &ref->lock);
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]2991 free_trash_chunk(key);
2992 free_trash_chunk(value);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2993 break;
2994 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]2995
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2996 case ACT_HTTP_REDIR:
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]2997 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
2998 return HTTP_RULE_RES_BADREQ;
2999 return HTTP_RULE_RES_DONE;
3000
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3001 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
3002 /* Note: only the first valid tracking parameter of each
3003 * applies.
3004 */
3005
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]3006 if (stkctr_entry(&s->stkctr[trk_idx(rule->action)]) == NULL) {
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3007 struct stktable *t;
3008 struct stksess *ts;
3009 struct stktable_key *key;
3010 void *ptr;
3011
3012 t = rule->arg.trk_ctr.table.t;
3013 key = stktable_fetch_key(t, s->be, sess, s, SMP_OPT_DIR_RES | SMP_OPT_FINAL, rule->arg.trk_ctr.expr, NULL);
3014
3015 if (key && (ts = stktable_get_entry(t, key))) {
Christopher Faulet4fce0d82017-09-18 11:57:31 +0200[diff] [blame]3016 stream_track_stkctr(&s->stkctr[trk_idx(rule->action)], t, ts);
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3017
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3018 RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
3019
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3020 /* let's count a new HTTP request as it's the first time we do it */
3021 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
3022 if (ptr)
3023 stktable_data_cast(ptr, http_req_cnt)++;
3024
3025 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
3026 if (ptr)
3027 update_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
3028 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
3029
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3030 /* When the client triggers a 4xx from the server, it's most often due
3031 * to a missing object or permission. These events should be tracked
3032 * because if they happen often, it may indicate a brute force or a
3033 * vulnerability scan. Normally this is done when receiving the response
3034 * but here we're tracking after this ought to have been done so we have
3035 * to do it on purpose.
3036 */
Willy Tarreau3146a4c2016-07-26 15:22:33 +0200[diff] [blame]3037 if ((unsigned)(txn->status - 400) < 100) {
3038 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_ERR_CNT);
3039 if (ptr)
3040 stktable_data_cast(ptr, http_err_cnt)++;
3041
3042 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_ERR_RATE);
3043 if (ptr)
3044 update_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
3045 t->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u, 1);
3046 }
Emeric Brun819fc6f2017-06-13 19:37:32 +0200[diff] [blame]3047
3048 RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
3049
3050 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
3051 if (sess->fe != s->be)
3052 stkctr_set_flags(&s->stkctr[trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
3053
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3054 }
3055 }
3056 break;
3057
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3058 case ACT_CUSTOM:
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3059 if ((px->options & PR_O_ABRT_CLOSE) && (s->req.flags & (CF_SHUTR|CF_READ_NULL|CF_READ_ERROR)))
3060 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]3061
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3062 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3063 case ACT_RET_ERR:
3064 case ACT_RET_CONT:
3065 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3066 case ACT_RET_STOP:
3067 return HTTP_RULE_RES_STOP;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3068 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3069 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3070 return HTTP_RULE_RES_YIELD;
3071 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3072 break;
3073
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]3074 /* other flags exists, but normaly, they never be matched. */
3075 default:
3076 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3077 }
3078 }
3079
3080 /* we reached the end of the rules, nothing to report */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3081 return HTTP_RULE_RES_CONT;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3082}
3083
3084
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3085/* Perform an HTTP redirect based on the information in <rule>. The function
3086 * returns non-zero on success, or zero in case of a, irrecoverable error such
3087 * as too large a request to build a valid response.
3088 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3089static 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]3090{
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3091 struct http_msg *req = &txn->req;
3092 struct http_msg *res = &txn->rsp;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3093 const char *msg_fmt;
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3094 struct chunk *chunk;
3095 int ret = 0;
3096
3097 chunk = alloc_trash_chunk();
3098 if (!chunk)
3099 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3100
3101 /* build redirect message */
3102 switch(rule->code) {
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]3103 case 308:
3104 msg_fmt = HTTP_308;
3105 break;
3106 case 307:
3107 msg_fmt = HTTP_307;
3108 break;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3109 case 303:
3110 msg_fmt = HTTP_303;
3111 break;
3112 case 301:
3113 msg_fmt = HTTP_301;
3114 break;
3115 case 302:
3116 default:
3117 msg_fmt = HTTP_302;
3118 break;
3119 }
3120
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3121 if (unlikely(!chunk_strcpy(chunk, msg_fmt)))
3122 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3123
3124 switch(rule->type) {
3125 case REDIRECT_TYPE_SCHEME: {
3126 const char *path;
3127 const char *host;
3128 struct hdr_ctx ctx;
3129 int pathlen;
3130 int hostlen;
3131
3132 host = "";
3133 hostlen = 0;
3134 ctx.idx = 0;
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3135 if (http_find_header2("Host", 4, req->chn->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3136 host = ctx.line + ctx.val;
3137 hostlen = ctx.vlen;
3138 }
3139
3140 path = http_get_path(txn);
3141 /* build message using path */
3142 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3143 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]3144 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3145 int qs = 0;
3146 while (qs < pathlen) {
3147 if (path[qs] == '?') {
3148 pathlen = qs;
3149 break;
3150 }
3151 qs++;
3152 }
3153 }
3154 } else {
3155 path = "/";
3156 pathlen = 1;
3157 }
3158
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3159 if (rule->rdr_str) { /* this is an old "redirect" rule */
3160 /* check if we can add scheme + "://" + host + path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3161 if (chunk->len + rule->rdr_len + 3 + hostlen + pathlen > chunk->size - 4)
3162 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3163
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3164 /* add scheme */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3165 memcpy(chunk->str + chunk->len, rule->rdr_str, rule->rdr_len);
3166 chunk->len += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3167 }
3168 else {
3169 /* add scheme with executing log format */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3170 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]3171
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3172 /* check if we can add scheme + "://" + host + path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3173 if (chunk->len + 3 + hostlen + pathlen > chunk->size - 4)
3174 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3175 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3176 /* add "://" */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3177 memcpy(chunk->str + chunk->len, "://", 3);
3178 chunk->len += 3;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3179
3180 /* add host */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3181 memcpy(chunk->str + chunk->len, host, hostlen);
3182 chunk->len += hostlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3183
3184 /* add path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3185 memcpy(chunk->str + chunk->len, path, pathlen);
3186 chunk->len += pathlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3187
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3188 /* append a slash at the end of the location if needed and missing */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3189 if (chunk->len && chunk->str[chunk->len - 1] != '/' &&
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3190 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3191 if (chunk->len > chunk->size - 5)
3192 goto leave;
3193 chunk->str[chunk->len] = '/';
3194 chunk->len++;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3195 }
3196
3197 break;
3198 }
3199 case REDIRECT_TYPE_PREFIX: {
3200 const char *path;
3201 int pathlen;
3202
3203 path = http_get_path(txn);
3204 /* build message using path */
3205 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3206 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]3207 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3208 int qs = 0;
3209 while (qs < pathlen) {
3210 if (path[qs] == '?') {
3211 pathlen = qs;
3212 break;
3213 }
3214 qs++;
3215 }
3216 }
3217 } else {
3218 path = "/";
3219 pathlen = 1;
3220 }
3221
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3222 if (rule->rdr_str) { /* this is an old "redirect" rule */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3223 if (chunk->len + rule->rdr_len + pathlen > chunk->size - 4)
3224 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3225
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3226 /* add prefix. Note that if prefix == "/", we don't want to
3227 * add anything, otherwise it makes it hard for the user to
3228 * configure a self-redirection.
3229 */
3230 if (rule->rdr_len != 1 || *rule->rdr_str != '/') {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3231 memcpy(chunk->str + chunk->len, rule->rdr_str, rule->rdr_len);
3232 chunk->len += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3233 }
3234 }
3235 else {
3236 /* add prefix with executing log format */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3237 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]3238
3239 /* Check length */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3240 if (chunk->len + pathlen > chunk->size - 4)
3241 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3242 }
3243
3244 /* add path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3245 memcpy(chunk->str + chunk->len, path, pathlen);
3246 chunk->len += pathlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3247
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3248 /* append a slash at the end of the location if needed and missing */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3249 if (chunk->len && chunk->str[chunk->len - 1] != '/' &&
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3250 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3251 if (chunk->len > chunk->size - 5)
3252 goto leave;
3253 chunk->str[chunk->len] = '/';
3254 chunk->len++;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3255 }
3256
3257 break;
3258 }
3259 case REDIRECT_TYPE_LOCATION:
3260 default:
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3261 if (rule->rdr_str) { /* this is an old "redirect" rule */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3262 if (chunk->len + rule->rdr_len > chunk->size - 4)
3263 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3264
3265 /* add location */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3266 memcpy(chunk->str + chunk->len, rule->rdr_str, rule->rdr_len);
3267 chunk->len += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3268 }
3269 else {
3270 /* add location with executing log format */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3271 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]3272
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3273 /* Check left length */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3274 if (chunk->len > chunk->size - 4)
3275 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3276 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3277 break;
3278 }
3279
3280 if (rule->cookie_len) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3281 memcpy(chunk->str + chunk->len, "\r\nSet-Cookie: ", 14);
3282 chunk->len += 14;
3283 memcpy(chunk->str + chunk->len, rule->cookie_str, rule->cookie_len);
3284 chunk->len += rule->cookie_len;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3285 }
3286
Willy Tarreau19b14122017-02-28 09:48:11 +0100[diff] [blame]3287 /* add end of headers and the keep-alive/close status. */
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3288 txn->status = rule->code;
3289 /* let's log the request time */
3290 s->logs.tv_request = now;
3291
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3292 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]3293 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
3294 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
3295 /* keep-alive possible */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3296 if (!(req->flags & HTTP_MSGF_VER_11)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3297 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3298 memcpy(chunk->str + chunk->len, "\r\nProxy-Connection: keep-alive", 30);
3299 chunk->len += 30;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3300 } else {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3301 memcpy(chunk->str + chunk->len, "\r\nConnection: keep-alive", 24);
3302 chunk->len += 24;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3303 }
3304 }
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3305 memcpy(chunk->str + chunk->len, "\r\n\r\n", 4);
3306 chunk->len += 4;
3307 FLT_STRM_CB(s, flt_http_reply(s, txn->status, chunk));
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]3308 co_inject(res->chn, chunk->str, chunk->len);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3309 /* "eat" the request */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3310 bi_fast_delete(req->chn->buf, req->sov);
3311 req->next -= req->sov;
3312 req->sov = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3313 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]3314 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]3315 req->msg_state = HTTP_MSG_CLOSED;
3316 res->msg_state = HTTP_MSG_DONE;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3317 /* Trim any possible response */
3318 res->chn->buf->i = 0;
3319 res->next = res->sov = 0;
Christopher Faulet5d468ca2017-09-11 09:27:29 +0200[diff] [blame]3320 /* let the server side turn to SI_ST_CLO */
3321 channel_shutw_now(req->chn);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3322 } else {
3323 /* keep-alive not possible */
3324 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3325 memcpy(chunk->str + chunk->len, "\r\nProxy-Connection: close\r\n\r\n", 29);
3326 chunk->len += 29;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3327 } else {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3328 memcpy(chunk->str + chunk->len, "\r\nConnection: close\r\n\r\n", 23);
3329 chunk->len += 23;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3330 }
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3331 http_reply_and_close(s, txn->status, chunk);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3332 req->chn->analysers &= AN_REQ_FLT_END;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3333 }
3334
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3335 if (!(s->flags & SF_ERR_MASK))
3336 s->flags |= SF_ERR_LOCAL;
3337 if (!(s->flags & SF_FINST_MASK))
3338 s->flags |= SF_FINST_R;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3339
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3340 ret = 1;
3341 leave:
3342 free_trash_chunk(chunk);
3343 return ret;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3344}
3345
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3346/* This stream analyser runs all HTTP request processing which is common to
3347 * frontends and backends, which means blocking ACLs, filters, connection-close,
3348 * reqadd, stats and redirects. This is performed for the designated proxy.
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3349 * 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]3350 * either needs more data or wants to immediately abort the request (eg: deny,
3351 * error, ...).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3352 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3353int 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]3354{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3355 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3356 struct http_txn *txn = s->txn;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3357 struct http_msg *msg = &txn->req;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3358 struct redirect_rule *rule;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100[diff] [blame]3359 struct cond_wordlist *wl;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3360 enum rule_result verdict;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3361 int deny_status = HTTP_ERR_403;
Olivier Houchardc2aae742017-09-22 18:26:28 +0200[diff] [blame]3362 struct connection *conn = objt_conn(sess->origin);
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3363
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]3364 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3365 /* we need more data */
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3366 goto return_prx_yield;
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3367 }
3368
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3369 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]3370 now_ms, __FUNCTION__,
3371 s,
3372 req,
3373 req->rex, req->wex,
3374 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3375 req->buf->i,
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3376 req->analysers);
3377
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]3378 /* just in case we have some per-backend tracking */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3379 stream_inc_be_http_req_ctr(s);
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]3380
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3381 /* evaluate http-request rules */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3382 if (!LIST_ISEMPTY(&px->http_req_rules)) {
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3383 verdict = http_req_get_intercept_rule(px, &px->http_req_rules, s, &deny_status);
Willy Tarreau51425942010-02-01 10:40:19 +0100[diff] [blame]3384
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3385 switch (verdict) {
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3386 case HTTP_RULE_RES_YIELD: /* some data miss, call the function later. */
3387 goto return_prx_yield;
3388
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3389 case HTTP_RULE_RES_CONT:
3390 case HTTP_RULE_RES_STOP: /* nothing to do */
3391 break;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3392
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3393 case HTTP_RULE_RES_DENY: /* deny or tarpit */
3394 if (txn->flags & TX_CLTARPIT)
3395 goto tarpit;
3396 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3397
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3398 case HTTP_RULE_RES_ABRT: /* abort request, response already sent. Eg: auth */
3399 goto return_prx_cond;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3400
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3401 case HTTP_RULE_RES_DONE: /* OK, but terminate request processing (eg: redirect) */
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3402 goto done;
3403
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3404 case HTTP_RULE_RES_BADREQ: /* failed with a bad request */
3405 goto return_bad_req;
3406 }
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3407 }
3408
Olivier Houchardc2aae742017-09-22 18:26:28 +0200[diff] [blame]3409 if (conn && conn->flags & CO_FL_EARLY_DATA) {
3410 struct hdr_ctx ctx;
3411
3412 ctx.idx = 0;
3413 if (!http_find_header2("Early-Data", strlen("Early-Data"),
3414 s->req.buf->p, &txn->hdr_idx, &ctx)) {
3415 if (unlikely(http_header_add_tail2(&txn->req,
3416 &txn->hdr_idx, "Early-Data: 1",
3417 strlen("Early-Data: 1"))) < 0) {
3418 goto return_bad_req;
3419 }
3420 }
3421
3422 }
3423
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3424 /* OK at this stage, we know that the request was accepted according to
3425 * the http-request rules, we can check for the stats. Note that the
3426 * URI is detected *before* the req* rules in order not to be affected
3427 * by a possible reqrep, while they are processed *after* so that a
3428 * reqdeny can still block them. This clearly needs to change in 1.6!
3429 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]3430 if (stats_check_uri(&s->si[1], txn, px)) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3431 s->target = &http_stats_applet.obj_type;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]3432 if (unlikely(!stream_int_register_handler(&s->si[1], objt_applet(s->target)))) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3433 txn->status = 500;
3434 s->logs.tv_request = now;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3435 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3436
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3437 if (!(s->flags & SF_ERR_MASK))
3438 s->flags |= SF_ERR_RESOURCE;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3439 goto return_prx_cond;
3440 }
3441
3442 /* parse the whole stats request and extract the relevant information */
3443 http_handle_stats(s, req);
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3444 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]3445 /* not all actions implemented: deny, allow, auth */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3446
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3447 if (verdict == HTTP_RULE_RES_DENY) /* stats http-request deny */
3448 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3449
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3450 if (verdict == HTTP_RULE_RES_ABRT) /* stats auth / stats http-request auth */
3451 goto return_prx_cond;
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +0100[diff] [blame]3452 }
3453
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3454 /* evaluate the req* rules except reqadd */
3455 if (px->req_exp != NULL) {
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]3456 if (apply_filters_to_request(s, req, px) < 0)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3457 goto return_bad_req;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3458
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3459 if (txn->flags & TX_CLDENY)
3460 goto deny;
Willy Tarreauc465fd72009-08-31 00:17:18 +0200[diff] [blame]3461
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3462 if (txn->flags & TX_CLTARPIT) {
3463 deny_status = HTTP_ERR_500;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3464 goto tarpit;
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3465 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3466 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3467
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3468 /* add request headers from the rule sets in the same order */
3469 list_for_each_entry(wl, &px->req_add, list) {
3470 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3471 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]3472 ret = acl_pass(ret);
3473 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
3474 ret = !ret;
3475 if (!ret)
3476 continue;
3477 }
3478
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]3479 if (unlikely(http_header_add_tail(&txn->req, &txn->hdr_idx, wl->s) < 0))
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3480 goto return_bad_req;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]3481 }
3482
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3483
3484 /* Proceed with the stats now. */
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3485 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3486 /* process the stats request now */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3487 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]3488 HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3489
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3490 if (!(s->flags & SF_ERR_MASK)) // this is not really an error but it is
3491 s->flags |= SF_ERR_LOCAL; // to mark that it comes from the proxy
3492 if (!(s->flags & SF_FINST_MASK))
3493 s->flags |= SF_FINST_R;
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3494
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]3495 /* 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]3496 req->analysers &= (AN_REQ_HTTP_BODY | AN_REQ_FLT_HTTP_HDRS | AN_REQ_FLT_END);
3497 req->analysers &= ~AN_REQ_FLT_XFER_DATA;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]3498 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3499 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3500 }
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]3501
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3502 /* check whether we have some ACLs set to redirect this request */
3503 list_for_each_entry(rule, &px->redirect_rules, list) {
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]3504 if (rule->cond) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3505 int ret;
3506
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3507 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]3508 ret = acl_pass(ret);
3509 if (rule->cond->pol == ACL_COND_UNLESS)
3510 ret = !ret;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3511 if (!ret)
3512 continue;
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]3513 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3514 if (!http_apply_redirect_rule(rule, s, txn))
3515 goto return_bad_req;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3516 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3517 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]3518
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]3519 /* POST requests may be accompanied with an "Expect: 100-Continue" header.
3520 * If this happens, then the data will not come immediately, so we must
3521 * send all what we have without waiting. Note that due to the small gain
3522 * 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]3523 * 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]3524 * itself once used.
3525 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]3526 req->flags |= CF_SEND_DONTWAIT;
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]3527
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3528 done: /* done with this analyser, continue with next ones that the calling
3529 * points will have set, if any.
3530 */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3531 req->analyse_exp = TICK_ETERNITY;
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]3532 done_without_exp: /* done with this analyser, but dont reset the analyse_exp. */
3533 req->analysers &= ~an_bit;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3534 return 1;
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]3535
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3536 tarpit:
Willy Tarreau6a0bca92017-06-11 17:56:27 +0200[diff] [blame]3537 /* Allow cookie logging
3538 */
3539 if (s->be->cookie_name || sess->fe->capture_name)
3540 manage_client_side_cookies(s, req);
3541
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3542 /* When a connection is tarpitted, we use the tarpit timeout,
3543 * which may be the same as the connect timeout if unspecified.
3544 * If unset, then set it to zero because we really want it to
3545 * eventually expire. We build the tarpit as an analyser.
3546 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]3547 channel_erase(&s->req);
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3548
3549 /* wipe the request out so that we can drop the connection early
3550 * if the client closes first.
3551 */
3552 channel_dont_connect(req);
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3553
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3554 txn->status = http_err_codes[deny_status];
3555
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3556 req->analysers &= AN_REQ_FLT_END; /* remove switching rules etc... */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3557 req->analysers |= AN_REQ_HTTP_TARPIT;
3558 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.tarpit);
3559 if (!req->analyse_exp)
3560 req->analyse_exp = tick_add(now_ms, 0);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3561 stream_inc_http_err_ctr(s);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3562 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3563 if (sess->fe != s->be)
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3564 HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3565 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3566 HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1);
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]3567 goto done_without_exp;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3568
3569 deny: /* this request was blocked (denied) */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3570
3571 /* Allow cookie logging
3572 */
3573 if (s->be->cookie_name || sess->fe->capture_name)
3574 manage_client_side_cookies(s, req);
3575
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3576 txn->flags |= TX_CLDENY;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3577 txn->status = http_err_codes[deny_status];
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3578 s->logs.tv_request = now;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3579 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3580 stream_inc_http_err_ctr(s);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3581 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3582 if (sess->fe != s->be)
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3583 HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3584 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3585 HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1);
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3586 goto return_prx_cond;
3587
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3588 return_bad_req:
3589 /* We centralize bad requests processing here */
3590 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
3591 /* we detected a parsing error. We want to archive this request
3592 * in the dedicated proxy area for later troubleshooting.
3593 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]3594 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]3595 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]3596
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3597 txn->req.err_state = txn->req.msg_state;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3598 txn->req.msg_state = HTTP_MSG_ERROR;
3599 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3600 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]3601
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3602 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3603 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3604 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreau6e4261e2007-09-18 18:36:05 +0200[diff] [blame]3605
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3606 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3607 if (!(s->flags & SF_ERR_MASK))
3608 s->flags |= SF_ERR_PRXCOND;
3609 if (!(s->flags & SF_FINST_MASK))
3610 s->flags |= SF_FINST_R;
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100[diff] [blame]3611
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3612 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3613 req->analyse_exp = TICK_ETERNITY;
3614 return 0;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3615
3616 return_prx_yield:
3617 channel_dont_connect(req);
3618 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3619}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3620
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3621/* This function performs all the processing enabled for the current request.
3622 * It returns 1 if the processing can continue on next analysers, or zero if it
3623 * needs more data, encounters an error, or wants to immediately abort the
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]3624 * request. It relies on buffers flags, and updates s->req.analysers.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3625 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3626int http_process_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3627{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3628 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3629 struct http_txn *txn = s->txn;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3630 struct http_msg *msg = &txn->req;
Willy Tarreauee335e62015-04-21 18:15:13 +0200[diff] [blame]3631 struct connection *cli_conn = objt_conn(strm_sess(s)->origin);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3632
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]3633 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3634 /* we need more data */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]3635 channel_dont_connect(req);
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3636 return 0;
3637 }
3638
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3639 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]3640 now_ms, __FUNCTION__,
3641 s,
3642 req,
3643 req->rex, req->wex,
3644 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3645 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3646 req->analysers);
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3647
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3648 /*
3649 * Right now, we know that we have processed the entire headers
3650 * and that unwanted requests have been filtered out. We can do
3651 * whatever we want with the remaining request. Also, now we
3652 * may have separate values for ->fe, ->be.
3653 */
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3654
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3655 /*
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3656 * If HTTP PROXY is set we simply get remote server address parsing
3657 * incoming request. Note that this requires that a connection is
3658 * allocated on the server side.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3659 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3660 if ((s->be->options & PR_O_HTTP_PROXY) && !(s->flags & SF_ADDR_SET)) {
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3661 struct connection *conn;
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3662 char *path;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3663
Willy Tarreau9471b8c2013-12-15 13:31:35 +0100[diff] [blame]3664 /* Note that for now we don't reuse existing proxy connections */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]3665 if (unlikely((conn = cs_conn(si_alloc_cs(&s->si[1], NULL))) == NULL)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3666 txn->req.err_state = txn->req.msg_state;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3667 txn->req.msg_state = HTTP_MSG_ERROR;
3668 txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3669 req->analysers &= AN_REQ_FLT_END;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3670 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3671
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3672 if (!(s->flags & SF_ERR_MASK))
3673 s->flags |= SF_ERR_RESOURCE;
3674 if (!(s->flags & SF_FINST_MASK))
3675 s->flags |= SF_FINST_R;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3676
3677 return 0;
3678 }
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3679
3680 path = http_get_path(txn);
3681 url2sa(req->buf->p + msg->sl.rq.u,
3682 path ? path - (req->buf->p + msg->sl.rq.u) : msg->sl.rq.u_l,
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]3683 &conn->addr.to, NULL);
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3684 /* if the path was found, we have to remove everything between
3685 * req->buf->p + msg->sl.rq.u and path (excluded). If it was not
3686 * found, we need to replace from req->buf->p + msg->sl.rq.u for
3687 * u_l characters by a single "/".
3688 */
3689 if (path) {
3690 char *cur_ptr = req->buf->p;
3691 char *cur_end = cur_ptr + txn->req.sl.rq.l;
3692 int delta;
3693
3694 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u, path, NULL, 0);
3695 http_msg_move_end(&txn->req, delta);
3696 cur_end += delta;
3697 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
3698 goto return_bad_req;
3699 }
3700 else {
3701 char *cur_ptr = req->buf->p;
3702 char *cur_end = cur_ptr + txn->req.sl.rq.l;
3703 int delta;
3704
3705 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u,
3706 req->buf->p + msg->sl.rq.u + msg->sl.rq.u_l, "/", 1);
3707 http_msg_move_end(&txn->req, delta);
3708 cur_end += delta;
3709 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
3710 goto return_bad_req;
3711 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3712 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3713
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3714 /*
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]3715 * 7: Now we can work with the cookies.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3716 * Note that doing so might move headers in the request, but
3717 * the fields will stay coherent and the URI will not move.
3718 * This should only be performed in the backend.
3719 */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3720 if (s->be->cookie_name || sess->fe->capture_name)
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3721 manage_client_side_cookies(s, req);
Willy Tarreau7ac51f62007-03-25 16:00:04 +0200[diff] [blame]3722
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3723 /* add unique-id if "header-unique-id" is specified */
3724
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]3725 if (!LIST_ISEMPTY(&sess->fe->format_unique_id) && !s->unique_id) {
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]3726 if ((s->unique_id = pool_alloc2(pool2_uniqueid)) == NULL)
3727 goto return_bad_req;
3728 s->unique_id[0] = '\0';
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3729 build_logline(s, s->unique_id, UNIQUEID_LEN, &sess->fe->format_unique_id);
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]3730 }
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3731
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3732 if (sess->fe->header_unique_id && s->unique_id) {
3733 chunk_printf(&trash, "%s: %s", sess->fe->header_unique_id, s->unique_id);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3734 if (trash.len < 0)
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3735 goto return_bad_req;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3736 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]3737 goto return_bad_req;
3738 }
3739
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]3740 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3741 * 9: add X-Forwarded-For if either the frontend or the backend
3742 * asks for it.
3743 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3744 if ((sess->fe->options | s->be->options) & PR_O_FWDFOR) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]3745 struct hdr_ctx ctx = { .idx = 0 };
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3746 if (!((sess->fe->options | s->be->options) & PR_O_FF_ALWAYS) &&
3747 http_find_header2(s->be->fwdfor_hdr_len ? s->be->fwdfor_hdr_name : sess->fe->fwdfor_hdr_name,
3748 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]3749 req->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]3750 /* The header is set to be added only if none is present
3751 * and we found it, so don't do anything.
3752 */
3753 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3754 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3755 /* Add an X-Forwarded-For header unless the source IP is
3756 * in the 'except' network range.
3757 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3758 if ((!sess->fe->except_mask.s_addr ||
3759 (((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr.s_addr & sess->fe->except_mask.s_addr)
3760 != sess->fe->except_net.s_addr) &&
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3761 (!s->be->except_mask.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3762 (((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]3763 != s->be->except_net.s_addr)) {
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]3764 int len;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3765 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3766 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr;
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]3767
3768 /* Note: we rely on the backend to get the header name to be used for
3769 * x-forwarded-for, because the header is really meant for the backends.
3770 * However, if the backend did not specify any option, we have to rely
3771 * on the frontend's header name.
3772 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3773 if (s->be->fwdfor_hdr_len) {
3774 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3775 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]3776 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3777 len = sess->fe->fwdfor_hdr_len;
3778 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]3779 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]3780 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]3781
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3782 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]3783 goto return_bad_req;
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]3784 }
3785 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3786 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET6) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3787 /* FIXME: for the sake of completeness, we should also support
3788 * 'except' here, although it is mostly useless in this case.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3789 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3790 int len;
3791 char pn[INET6_ADDRSTRLEN];
3792 inet_ntop(AF_INET6,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3793 (const void *)&((struct sockaddr_in6 *)(&cli_conn->addr.from))->sin6_addr,
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3794 pn, sizeof(pn));
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3795
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3796 /* Note: we rely on the backend to get the header name to be used for
3797 * x-forwarded-for, because the header is really meant for the backends.
3798 * However, if the backend did not specify any option, we have to rely
3799 * on the frontend's header name.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3800 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3801 if (s->be->fwdfor_hdr_len) {
3802 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3803 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3804 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3805 len = sess->fe->fwdfor_hdr_len;
3806 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3807 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]3808 len += snprintf(trash.str + len, trash.size - len, ": %s", pn);
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3809
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3810 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]3811 goto return_bad_req;
3812 }
3813 }
3814
3815 /*
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3816 * 10: add X-Original-To if either the frontend or the backend
3817 * asks for it.
3818 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3819 if ((sess->fe->options | s->be->options) & PR_O_ORGTO) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3820
3821 /* FIXME: don't know if IPv6 can handle that case too. */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3822 if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3823 /* Add an X-Original-To header unless the destination IP is
3824 * in the 'except' network range.
3825 */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3826 conn_get_to_addr(cli_conn);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3827
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3828 if (cli_conn->addr.to.ss_family == AF_INET &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3829 ((!sess->fe->except_mask_to.s_addr ||
3830 (((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr.s_addr & sess->fe->except_mask_to.s_addr)
3831 != sess->fe->except_to.s_addr) &&
Emeric Brun5bd86a82010-10-22 17:23:04 +0200[diff] [blame]3832 (!s->be->except_mask_to.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3833 (((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]3834 != s->be->except_to.s_addr))) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3835 int len;
3836 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3837 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr;
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3838
3839 /* Note: we rely on the backend to get the header name to be used for
3840 * x-original-to, because the header is really meant for the backends.
3841 * However, if the backend did not specify any option, we have to rely
3842 * on the frontend's header name.
3843 */
3844 if (s->be->orgto_hdr_len) {
3845 len = s->be->orgto_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3846 memcpy(trash.str, s->be->orgto_hdr_name, len);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3847 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3848 len = sess->fe->orgto_hdr_len;
3849 memcpy(trash.str, sess->fe->orgto_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]3850 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]3851 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]3852
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3853 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]3854 goto return_bad_req;
3855 }
3856 }
3857 }
3858
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]3859 /* 11: add "Connection: close" or "Connection: keep-alive" if needed and not yet set.
3860 * If an "Upgrade" token is found, the header is left untouched in order not to have
3861 * to deal with some servers bugs : some of them fail an Upgrade if anything but
3862 * "Upgrade" is present in the Connection header.
3863 */
3864 if (!(txn->flags & TX_HDR_CONN_UPG) &&
3865 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3866 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3867 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3868 unsigned int want_flags = 0;
3869
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3870 if (msg->flags & HTTP_MSGF_VER_11) {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]3871 if (((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3872 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3873 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3874 !((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3875 want_flags |= TX_CON_CLO_SET;
3876 } else {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]3877 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3878 ((sess->fe->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL &&
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3879 (s->be->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL)) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3880 ((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3881 want_flags |= TX_CON_KAL_SET;
3882 }
3883
3884 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]3885 http_change_connection_header(txn, msg, want_flags);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3886 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3887
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3888
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3889 /* If we have no server assigned yet and we're balancing on url_param
3890 * with a POST request, we may be interested in checking the body for
3891 * that parameter. This will be done in another analyser.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3892 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3893 if (!(s->flags & (SF_ASSIGNED|SF_DIRECT)) &&
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3894 s->txn->meth == HTTP_METH_POST && s->be->url_param_name != NULL &&
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3895 (msg->flags & (HTTP_MSGF_CNT_LEN|HTTP_MSGF_TE_CHNK))) {
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]3896 channel_dont_connect(req);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3897 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3898 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]3899
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3900 req->analysers &= ~AN_REQ_FLT_XFER_DATA;
3901 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]3902#ifdef TCP_QUICKACK
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3903 /* We expect some data from the client. Unless we know for sure
3904 * we already have a full request, we have to re-enable quick-ack
3905 * in case we previously disabled it, otherwise we might cause
3906 * the client to delay further data.
3907 */
3908 if ((sess->listener->options & LI_O_NOQUICKACK) &&
3909 cli_conn && conn_ctrl_ready(cli_conn) &&
3910 ((msg->flags & HTTP_MSGF_TE_CHNK) ||
3911 (msg->body_len > req->buf->i - txn->req.eoh - 2)))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]3912 setsockopt(cli_conn->handle.fd, IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one));
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]3913#endif
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]3914
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3915 /*************************************************************
3916 * OK, that's finished for the headers. We have done what we *
3917 * could. Let's switch to the DATA state. *
3918 ************************************************************/
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3919 req->analyse_exp = TICK_ETERNITY;
3920 req->analysers &= ~an_bit;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]3921
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3922 s->logs.tv_request = now;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3923 /* OK let's go on with the BODY now */
3924 return 1;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3925
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3926 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]3927 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
Willy Tarreauf073a832009-03-01 23:21:47 +0100[diff] [blame]3928 /* we detected a parsing error. We want to archive this request
3929 * in the dedicated proxy area for later troubleshooting.
3930 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]3931 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]3932 }
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]3933
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3934 txn->req.err_state = txn->req.msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3935 txn->req.msg_state = HTTP_MSG_ERROR;
3936 txn->status = 400;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3937 req->analysers &= AN_REQ_FLT_END;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3938 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]3939
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]3940 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3941 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]3942 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3943
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3944 if (!(s->flags & SF_ERR_MASK))
3945 s->flags |= SF_ERR_PRXCOND;
3946 if (!(s->flags & SF_FINST_MASK))
3947 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]3948 return 0;
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]3949}
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3950
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3951/* This function is an analyser which processes the HTTP tarpit. It always
3952 * returns zero, at the beginning because it prevents any other processing
3953 * from occurring, and at the end because it terminates the request.
3954 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3955int http_process_tarpit(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3956{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3957 struct http_txn *txn = s->txn;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3958
3959 /* This connection is being tarpitted. The CLIENT side has
3960 * already set the connect expiration date to the right
3961 * timeout. We just have to check that the client is still
3962 * there and that the timeout has not expired.
3963 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]3964 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]3965 if ((req->flags & (CF_SHUTR|CF_READ_ERROR)) == 0 &&
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3966 !tick_is_expired(req->analyse_exp, now_ms))
3967 return 0;
3968
3969 /* We will set the queue timer to the time spent, just for
3970 * logging purposes. We fake a 500 server error, so that the
3971 * attacker will not suspect his connection has been tarpitted.
3972 * It will not cause trouble to the logs because we can exclude
3973 * the tarpitted connections by filtering on the 'PT' status flags.
3974 */
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3975 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
3976
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]3977 if (!(req->flags & CF_READ_ERROR))
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3978 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3979
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3980 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3981 req->analyse_exp = TICK_ETERNITY;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]3982
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3983 if (!(s->flags & SF_ERR_MASK))
3984 s->flags |= SF_ERR_PRXCOND;
3985 if (!(s->flags & SF_FINST_MASK))
3986 s->flags |= SF_FINST_T;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3987 return 0;
3988}
3989
Willy Tarreau5a8f9472014-04-10 11:16:06 +0200[diff] [blame]3990/* This function is an analyser which waits for the HTTP request body. It waits
3991 * for either the buffer to be full, or the full advertised contents to have
3992 * reached the buffer. It must only be called after the standard HTTP request
3993 * processing has occurred, because it expects the request to be parsed and will
3994 * look for the Expect header. It may send a 100-Continue interim response. It
3995 * takes in input any state starting from HTTP_MSG_BODY and leaves with one of
3996 * HTTP_MSG_CHK_SIZE, HTTP_MSG_DATA or HTTP_MSG_TRAILERS. It returns zero if it
3997 * needs to read more data, or 1 once it has completed its analysis.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]3998 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3999int http_wait_for_request_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4000{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4001 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4002 struct http_txn *txn = s->txn;
4003 struct http_msg *msg = &s->txn->req;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4004
4005 /* We have to parse the HTTP request body to find any required data.
4006 * "balance url_param check_post" should have been the only way to get
4007 * into this. We were brought here after HTTP header analysis, so all
4008 * related structures are ready.
4009 */
4010
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4011 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE) {
4012 /* This is the first call */
4013 if (msg->msg_state < HTTP_MSG_BODY)
4014 goto missing_data;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4015
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4016 if (msg->msg_state < HTTP_MSG_100_SENT) {
4017 /* If we have HTTP/1.1 and Expect: 100-continue, then we must
4018 * send an HTTP/1.1 100 Continue intermediate response.
4019 */
4020 if (msg->flags & HTTP_MSGF_VER_11) {
4021 struct hdr_ctx ctx;
4022 ctx.idx = 0;
4023 /* Expect is allowed in 1.1, look for it */
4024 if (http_find_header2("Expect", 6, req->buf->p, &txn->hdr_idx, &ctx) &&
4025 unlikely(ctx.vlen == 12 && strncasecmp(ctx.line+ctx.val, "100-continue", 12) == 0)) {
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]4026 co_inject(&s->res, http_100_chunk.str, http_100_chunk.len);
Thierry FOURNIER / OZON.IO43ad11d2016-12-12 15:19:58 +0100[diff] [blame]4027 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4028 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4029 }
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4030 msg->msg_state = HTTP_MSG_100_SENT;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4031 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4032
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]4033 /* we have msg->sov which points to the first byte of message body.
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4034 * req->buf->p still points to the beginning of the message. We
4035 * must save the body in msg->next because it survives buffer
4036 * re-alignments.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4037 */
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]4038 msg->next = msg->sov;
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4039
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4040 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4041 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
4042 else
4043 msg->msg_state = HTTP_MSG_DATA;
4044 }
4045
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4046 if (!(msg->flags & HTTP_MSGF_TE_CHNK)) {
4047 /* We're in content-length mode, we just have to wait for enough data. */
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4048 if (http_body_bytes(msg) < msg->body_len)
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4049 goto missing_data;
4050
4051 /* OK we have everything we need now */
4052 goto http_end;
4053 }
4054
4055 /* OK here we're parsing a chunked-encoded message */
4056
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4057 if (msg->msg_state == HTTP_MSG_CHUNK_SIZE) {
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]4058 /* read the chunk size and assign it to ->chunk_len, then
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4059 * set ->sov and ->next to point to the body and switch to DATA or
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4060 * TRAILERS state.
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4061 */
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]4062 unsigned int chunk;
4063 int ret = h1_parse_chunk_size(req->buf, msg->next, req->buf->i, &chunk);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4064
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4065 if (!ret)
4066 goto missing_data;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4067 else if (ret < 0) {
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]4068 msg->err_pos = req->buf->i + ret;
4069 if (msg->err_pos < 0)
4070 msg->err_pos += req->buf->size;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4071 stream_inc_http_err_ctr(s);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4072 goto return_bad_req;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4073 }
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]4074
4075 msg->chunk_len = chunk;
4076 msg->body_len += chunk;
4077
4078 msg->sol = ret;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]4079 msg->next += ret;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4080 msg->msg_state = msg->chunk_len ? HTTP_MSG_DATA : HTTP_MSG_TRAILERS;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4081 }
4082
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4083 /* Now we're in HTTP_MSG_DATA or HTTP_MSG_TRAILERS state.
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4084 * We have the first data byte is in msg->sov + msg->sol. We're waiting
4085 * for at least a whole chunk or the whole content length bytes after
4086 * msg->sov + msg->sol.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4087 */
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4088 if (msg->msg_state == HTTP_MSG_TRAILERS)
4089 goto http_end;
4090
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4091 if (http_body_bytes(msg) >= msg->body_len) /* we have enough bytes now */
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4092 goto http_end;
4093
4094 missing_data:
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4095 /* we get here if we need to wait for more data. If the buffer is full,
4096 * we have the maximum we can expect.
4097 */
4098 if (buffer_full(req->buf, global.tune.maxrewrite))
4099 goto http_end;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4100
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4101 if ((req->flags & CF_READ_TIMEOUT) || tick_is_expired(req->analyse_exp, now_ms)) {
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4102 txn->status = 408;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4103 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4104
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4105 if (!(s->flags & SF_ERR_MASK))
4106 s->flags |= SF_ERR_CLITO;
4107 if (!(s->flags & SF_FINST_MASK))
4108 s->flags |= SF_FINST_D;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4109 goto return_err_msg;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4110 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4111
4112 /* we get here if we need to wait for more data */
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4113 if (!(req->flags & (CF_SHUTR | CF_READ_ERROR))) {
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4114 /* Not enough data. We'll re-use the http-request
4115 * timeout here. Ideally, we should set the timeout
4116 * relative to the accept() date. We just set the
4117 * request timeout once at the beginning of the
4118 * request.
4119 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4120 channel_dont_connect(req);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4121 if (!tick_isset(req->analyse_exp))
Willy Tarreaucd7afc02009-07-12 10:03:17 +0200[diff] [blame]4122 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4123 return 0;
4124 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4125
4126 http_end:
4127 /* The situation will not evolve, so let's give up on the analysis. */
4128 s->logs.tv_request = now; /* update the request timer to reflect full request */
4129 req->analysers &= ~an_bit;
4130 req->analyse_exp = TICK_ETERNITY;
4131 return 1;
4132
4133 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4134 txn->req.err_state = txn->req.msg_state;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4135 txn->req.msg_state = HTTP_MSG_ERROR;
4136 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4137 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4138
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4139 if (!(s->flags & SF_ERR_MASK))
4140 s->flags |= SF_ERR_PRXCOND;
4141 if (!(s->flags & SF_FINST_MASK))
4142 s->flags |= SF_FINST_R;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4143
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4144 return_err_msg:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4145 req->analysers &= AN_REQ_FLT_END;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4146 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4147 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]4148 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4149 return 0;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4150}
4151
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4152/* send a server's name with an outgoing request over an established connection.
4153 * Note: this function is designed to be called once the request has been scheduled
4154 * for being forwarded. This is the reason why it rewinds the buffer before
4155 * proceeding.
4156 */
Willy Tarreau45c0d982012-03-09 12:11:57 +0100[diff] [blame]4157int 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]4158
4159 struct hdr_ctx ctx;
4160
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4161 char *hdr_name = be->server_id_hdr_name;
4162 int hdr_name_len = be->server_id_hdr_len;
Willy Tarreau394db372012-10-12 22:40:39 +0200[diff] [blame]4163 struct channel *chn = txn->req.chn;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4164 char *hdr_val;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4165 unsigned int old_o, old_i;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4166
William Lallemandd9e90662012-01-30 17:27:17 +0100[diff] [blame]4167 ctx.idx = 0;
4168
Willy Tarreau211cdec2014-04-17 20:18:08 +0200[diff] [blame]4169 old_o = http_hdr_rewind(&txn->req);
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4170 if (old_o) {
4171 /* The request was already skipped, let's restore it */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4172 b_rew(chn->buf, old_o);
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4173 txn->req.next += old_o;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4174 txn->req.sov += old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4175 }
4176
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4177 old_i = chn->buf->i;
4178 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]4179 /* remove any existing values from the header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]4180 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4181 }
4182
4183 /* Add the new header requested with the server value */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4184 hdr_val = trash.str;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4185 memcpy(hdr_val, hdr_name, hdr_name_len);
4186 hdr_val += hdr_name_len;
4187 *hdr_val++ = ':';
4188 *hdr_val++ = ' ';
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4189 hdr_val += strlcpy2(hdr_val, srv_name, trash.str + trash.size - hdr_val);
4190 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]4191
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4192 if (old_o) {
4193 /* If this was a forwarded request, we must readjust the amount of
4194 * data to be forwarded in order to take into account the size
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4195 * variations. Note that the current state is >= HTTP_MSG_BODY,
4196 * so we don't have to adjust ->sol.
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4197 */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4198 old_o += chn->buf->i - old_i;
4199 b_adv(chn->buf, old_o);
4200 txn->req.next -= old_o;
4201 txn->req.sov -= old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4202 }
4203
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4204 return 0;
4205}
4206
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4207/* Terminate current transaction and prepare a new one. This is very tricky
4208 * right now but it works.
4209 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4210void http_end_txn_clean_session(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4211{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4212 int prev_status = s->txn->status;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]4213 struct proxy *fe = strm_fe(s);
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4214 struct proxy *be = s->be;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4215 struct conn_stream *cs;
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4216 struct connection *srv_conn;
4217 struct server *srv;
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4218 unsigned int prev_flags = s->txn->flags;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4219
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4220 /* FIXME: We need a more portable way of releasing a backend's and a
4221 * server's connections. We need a safer way to reinitialize buffer
4222 * flags. We also need a more accurate method for computing per-request
4223 * data.
4224 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4225 /*
4226 * XXX cognet: This is probably wrong, this is killing a whole
4227 * connection, in the new world order, we probably want to just kill
4228 * the stream, this is to be revisited the day we handle multiple
4229 * streams in one server connection.
4230 */
4231 cs = objt_cs(s->si[1].end);
4232 srv_conn = cs_conn(cs);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4233
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4234 /* unless we're doing keep-alive, we want to quickly close the connection
4235 * to the server.
4236 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4237 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4238 !si_conn_ready(&s->si[1])) {
4239 s->si[1].flags |= SI_FL_NOLINGER | SI_FL_NOHALF;
4240 si_shutr(&s->si[1]);
4241 si_shutw(&s->si[1]);
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4242 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4243
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4244 if (s->flags & SF_BE_ASSIGNED) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4245 HA_ATOMIC_SUB(&be->beconn, 1);
Willy Tarreau2d5cd472012-03-01 23:34:37 +0100[diff] [blame]4246 if (unlikely(s->srv_conn))
4247 sess_change_server(s, NULL);
4248 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4249
4250 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4251 stream_process_counters(s);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4252
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4253 if (s->txn->status) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4254 int n;
4255
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4256 n = s->txn->status / 100;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4257 if (n < 1 || n > 5)
4258 n = 0;
4259
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4260 if (fe->mode == PR_MODE_HTTP) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4261 HA_ATOMIC_ADD(&fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4262 }
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4263 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4264 (be->mode == PR_MODE_HTTP)) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4265 HA_ATOMIC_ADD(&be->be_counters.p.http.rsp[n], 1);
4266 HA_ATOMIC_ADD(&be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4267 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4268 }
4269
4270 /* don't count other requests' data */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4271 s->logs.bytes_in -= s->req.buf->i;
4272 s->logs.bytes_out -= s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4273
4274 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4275 if (!LIST_ISEMPTY(&fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4276 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4277 (!(fe->options & PR_O_NULLNOLOG) || s->req.total)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4278 s->do_log(s);
4279 }
4280
Willy Tarreaud713bcc2014-06-25 15:36:04 +0200[diff] [blame]4281 /* stop tracking content-based counters */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4282 stream_stop_content_counters(s);
4283 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +0200[diff] [blame]4284
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4285 s->logs.accept_date = date; /* user-visible date for logging */
4286 s->logs.tv_accept = now; /* corrected date for internal use */
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200[diff] [blame]4287 s->logs.t_handshake = 0; /* There are no handshake in keep alive connection. */
4288 s->logs.t_idle = -1;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4289 tv_zero(&s->logs.tv_request);
4290 s->logs.t_queue = -1;
4291 s->logs.t_connect = -1;
4292 s->logs.t_data = -1;
4293 s->logs.t_close = 0;
4294 s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */
4295 s->logs.srv_queue_size = 0; /* we will get this number soon */
4296
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4297 s->logs.bytes_in = s->req.total = s->req.buf->i;
4298 s->logs.bytes_out = s->res.total = s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4299
4300 if (s->pend_pos)
4301 pendconn_free(s->pend_pos);
4302
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4303 if (objt_server(s->target)) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4304 if (s->flags & SF_CURR_SESS) {
4305 s->flags &= ~SF_CURR_SESS;
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4306 HA_ATOMIC_SUB(&objt_server(s->target)->cur_sess, 1);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4307 }
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4308 if (may_dequeue_tasks(objt_server(s->target), be))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4309 process_srv_queue(objt_server(s->target));
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4310 }
4311
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4312 s->target = NULL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4313
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4314 /* only release our endpoint if we don't intend to reuse the
4315 * connection.
4316 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4317 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4318 !si_conn_ready(&s->si[1])) {
4319 si_release_endpoint(&s->si[1]);
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4320 srv_conn = NULL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4321 }
4322
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4323 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
4324 s->si[1].err_type = SI_ET_NONE;
4325 s->si[1].conn_retries = 0; /* used for logging too */
4326 s->si[1].exp = TICK_ETERNITY;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4327 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]4328 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);
4329 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);
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4330 s->flags &= ~(SF_DIRECT|SF_ASSIGNED|SF_ADDR_SET|SF_BE_ASSIGNED|SF_FORCE_PRST|SF_IGNORE_PRST);
4331 s->flags &= ~(SF_CURR_SESS|SF_REDIRECTABLE|SF_SRV_REUSED);
4332 s->flags &= ~(SF_ERR_MASK|SF_FINST_MASK|SF_REDISP);
Willy Tarreau543db622012-11-15 16:41:22 +0100[diff] [blame]4333
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4334 s->txn->meth = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4335 http_reset_txn(s);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4336 s->txn->flags |= TX_NOT_FIRST | TX_WAIT_NEXT_RQ;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4337
4338 if (prev_status == 401 || prev_status == 407) {
4339 /* In HTTP keep-alive mode, if we receive a 401, we still have
4340 * a chance of being able to send the visitor again to the same
4341 * server over the same connection. This is required by some
4342 * broken protocols such as NTLM, and anyway whenever there is
4343 * an opportunity for sending the challenge to the proper place,
4344 * it's better to do it (at least it helps with debugging).
4345 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4346 s->txn->flags |= TX_PREFER_LAST;
Willy Tarreaubd99d582015-09-02 10:40:43 +0200[diff] [blame]4347 if (srv_conn)
4348 srv_conn->flags |= CO_FL_PRIVATE;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4349 }
4350
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4351 /* Never ever allow to reuse a connection from a non-reuse backend */
4352 if (srv_conn && (be->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
4353 srv_conn->flags |= CO_FL_PRIVATE;
4354
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4355 if (fe->options2 & PR_O2_INDEPSTR)
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4356 s->si[1].flags |= SI_FL_INDEP_STR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4357
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4358 if (fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4359 s->req.flags |= CF_NEVER_WAIT;
4360 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200[diff] [blame]4361 }
4362
Willy Tarreau714ea782015-11-25 20:11:11 +0100[diff] [blame]4363 /* we're removing the analysers, we MUST re-enable events detection.
4364 * We don't enable close on the response channel since it's either
4365 * already closed, or in keep-alive with an idle connection handler.
4366 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4367 channel_auto_read(&s->req);
4368 channel_auto_close(&s->req);
4369 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4370
Willy Tarreau1c59bd52015-11-02 20:20:11 +0100[diff] [blame]4371 /* we're in keep-alive with an idle connection, monitor it if not already done */
4372 if (srv_conn && LIST_ISEMPTY(&srv_conn->list)) {
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4373 srv = objt_server(srv_conn->target);
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4374 if (!srv)
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4375 si_idle_cs(&s->si[1], NULL);
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4376 else if (srv_conn->flags & CO_FL_PRIVATE)
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4377 si_idle_cs(&s->si[1], (srv->priv_conns ? &srv->priv_conns[tid] : NULL));
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4378 else if (prev_flags & TX_NOT_FIRST)
4379 /* note: we check the request, not the connection, but
4380 * this is valid for strategies SAFE and AGGR, and in
4381 * case of ALWS, we don't care anyway.
4382 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4383 si_idle_cs(&s->si[1], (srv->safe_conns ? &srv->safe_conns[tid] : NULL));
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4384 else
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]4385 si_idle_cs(&s->si[1], (srv->idle_conns ? &srv->idle_conns[tid] : NULL));
Willy Tarreau4320eaa2015-08-05 11:08:30 +0200[diff] [blame]4386 }
Christopher Faulete6006242017-03-10 11:52:44 +0100[diff] [blame]4387 s->req.analysers = strm_li(s) ? strm_li(s)->analysers : 0;
4388 s->res.analysers = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4389}
4390
4391
4392/* This function updates the request state machine according to the response
4393 * state machine and buffer flags. It returns 1 if it changes anything (flag
4394 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4395 * it is only used to find when a request/response couple is complete. Both
4396 * this function and its equivalent should loop until both return zero. It
4397 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4398 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4399int http_sync_req_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4400{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4401 struct channel *chn = &s->req;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4402 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4403 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4404 unsigned int old_state = txn->req.msg_state;
4405
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4406 if (unlikely(txn->req.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4407 return 0;
4408
4409 if (txn->req.msg_state == HTTP_MSG_DONE) {
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4410 /* No need to read anymore, the request was completely parsed.
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4411 * We can shut the read side unless we want to abort_on_close,
4412 * or we have a POST request. The issue with POST requests is
4413 * that some browsers still send a CRLF after the request, and
4414 * this CRLF must be read so that it does not remain in the kernel
4415 * buffers, otherwise a close could cause an RST on some systems
4416 * (eg: Linux).
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4417 * Note that if we're using keep-alive on the client side, we'd
4418 * rather poll now and keep the polling enabled for the whole
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4419 * stream's life than enabling/disabling it between each
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4420 * response and next request.
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4421 */
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4422 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4423 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
4424 !(s->be->options & PR_O_ABRT_CLOSE) &&
4425 txn->meth != HTTP_METH_POST)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4426 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4427
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4428 /* if the server closes the connection, we want to immediately react
4429 * and close the socket to save packets and syscalls.
4430 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4431 s->si[1].flags |= SI_FL_NOHALF;
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4432
Willy Tarreau7f876a12015-11-18 11:59:55 +0100[diff] [blame]4433 /* In any case we've finished parsing the request so we must
4434 * disable Nagle when sending data because 1) we're not going
4435 * to shut this side, and 2) the server is waiting for us to
4436 * send pending data.
4437 */
4438 chn->flags |= CF_NEVER_WAIT;
4439
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4440 if (txn->rsp.msg_state == HTTP_MSG_ERROR)
4441 goto wait_other_side;
4442
4443 if (txn->rsp.msg_state < HTTP_MSG_DONE) {
4444 /* The server has not finished to respond, so we
4445 * don't want to move in order not to upset it.
4446 */
4447 goto wait_other_side;
4448 }
4449
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4450 /* When we get here, it means that both the request and the
4451 * response have finished receiving. Depending on the connection
4452 * mode, we'll have to wait for the last bytes to leave in either
4453 * direction, and sometimes for a close to be effective.
4454 */
4455
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4456 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4457 /* Server-close mode : queue a connection close to the server */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4458 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW)))
4459 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4460 }
4461 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4462 /* Option forceclose is set, or either side wants to close,
4463 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4464 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4465 * once both states are CLOSED.
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4466 *
4467 * However, there is an exception if the response
4468 * length is undefined. In this case, we need to wait
4469 * the close from the server. The response will be
4470 * switched in TUNNEL mode until the end.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4471 */
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4472 if (!(txn->rsp.flags & HTTP_MSGF_XFER_LEN) &&
4473 txn->rsp.msg_state != HTTP_MSG_CLOSED)
4474 goto check_channel_flags;
4475
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4476 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
4477 channel_shutr_now(chn);
4478 channel_shutw_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4479 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4480 }
4481 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4482 /* The last possible modes are keep-alive and tunnel. Tunnel mode
4483 * will not have any analyser so it needs to poll for reads.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4484 */
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4485 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN) {
4486 channel_auto_read(chn);
4487 txn->req.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4488 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4489 }
4490
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4491 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4492 }
4493
4494 if (txn->req.msg_state == HTTP_MSG_CLOSING) {
4495 http_msg_closing:
4496 /* nothing else to forward, just waiting for the output buffer
4497 * to be empty and for the shutw_now to take effect.
4498 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4499 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4500 txn->req.msg_state = HTTP_MSG_CLOSED;
4501 goto http_msg_closed;
4502 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4503 else if (chn->flags & CF_SHUTW) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4504 txn->req.err_state = txn->req.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4505 txn->req.msg_state = HTTP_MSG_ERROR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4506 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4507 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4508 }
4509
4510 if (txn->req.msg_state == HTTP_MSG_CLOSED) {
4511 http_msg_closed:
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4512 /* see above in MSG_DONE why we only do this in these states */
4513 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4514 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
4515 !(s->be->options & PR_O_ABRT_CLOSE))
Willy Tarreau2e7a1652013-12-15 15:32:10 +0100[diff] [blame]4516 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4517 goto wait_other_side;
4518 }
4519
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4520 check_channel_flags:
4521 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4522 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4523 /* if we've just closed an output, let's switch */
4524 s->si[1].flags |= SI_FL_NOLINGER; /* we want to close ASAP */
4525 txn->req.msg_state = HTTP_MSG_CLOSING;
4526 goto http_msg_closing;
4527 }
4528
4529
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4530 wait_other_side:
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4531 return txn->req.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4532}
4533
4534
4535/* This function updates the response state machine according to the request
4536 * state machine and buffer flags. It returns 1 if it changes anything (flag
4537 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4538 * it is only used to find when a request/response couple is complete. Both
4539 * this function and its equivalent should loop until both return zero. It
4540 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4541 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4542int http_sync_res_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4543{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4544 struct channel *chn = &s->res;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4545 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4546 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4547 unsigned int old_state = txn->rsp.msg_state;
4548
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4549 if (unlikely(txn->rsp.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4550 return 0;
4551
4552 if (txn->rsp.msg_state == HTTP_MSG_DONE) {
4553 /* In theory, we don't need to read anymore, but we must
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4554 * still monitor the server connection for a possible close
4555 * while the request is being uploaded, so we don't disable
4556 * reading.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4557 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4558 /* channel_dont_read(chn); */
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4559
4560 if (txn->req.msg_state == HTTP_MSG_ERROR)
4561 goto wait_other_side;
4562
4563 if (txn->req.msg_state < HTTP_MSG_DONE) {
4564 /* The client seems to still be sending data, probably
4565 * because we got an error response during an upload.
4566 * We have the choice of either breaking the connection
4567 * or letting it pass through. Let's do the later.
4568 */
4569 goto wait_other_side;
4570 }
4571
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4572 /* When we get here, it means that both the request and the
4573 * response have finished receiving. Depending on the connection
4574 * mode, we'll have to wait for the last bytes to leave in either
4575 * direction, and sometimes for a close to be effective.
4576 */
4577
4578 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4579 /* Server-close mode : shut read and wait for the request
4580 * side to close its output buffer. The caller will detect
4581 * when we're in DONE and the other is in CLOSED and will
4582 * catch that for the final cleanup.
4583 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4584 if (!(chn->flags & (CF_SHUTR|CF_SHUTR_NOW)))
4585 channel_shutr_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4586 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4587 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4588 /* Option forceclose is set, or either side wants to close,
4589 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4590 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4591 * once both states are CLOSED.
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4592 *
4593 * However, there is an exception if the response length
4594 * is undefined. In this case, we switch in TUNNEL mode.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4595 */
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4596 if (!(txn->rsp.flags & HTTP_MSGF_XFER_LEN)) {
4597 channel_auto_read(chn);
4598 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
4599 chn->flags |= CF_NEVER_WAIT;
4600 }
4601 else if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4602 channel_shutr_now(chn);
4603 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4604 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4605 }
4606 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4607 /* The last possible modes are keep-alive and tunnel. Tunnel will
4608 * need to forward remaining data. Keep-alive will need to monitor
4609 * for connection closing.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4610 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4611 channel_auto_read(chn);
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4612 chn->flags |= CF_NEVER_WAIT;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4613 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN)
4614 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4615 }
4616
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4617 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4618 }
4619
4620 if (txn->rsp.msg_state == HTTP_MSG_CLOSING) {
4621 http_msg_closing:
4622 /* nothing else to forward, just waiting for the output buffer
4623 * to be empty and for the shutw_now to take effect.
4624 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4625 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4626 txn->rsp.msg_state = HTTP_MSG_CLOSED;
4627 goto http_msg_closed;
4628 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4629 else if (chn->flags & CF_SHUTW) {
Christopher Fauleta3992e02017-07-18 10:35:55 +0200[diff] [blame]4630 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4631 txn->rsp.msg_state = HTTP_MSG_ERROR;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4632 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4633 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4634 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4635 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4636 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4637 }
4638
4639 if (txn->rsp.msg_state == HTTP_MSG_CLOSED) {
4640 http_msg_closed:
4641 /* drop any pending data */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]4642 channel_truncate(chn);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4643 channel_auto_close(chn);
4644 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4645 goto wait_other_side;
4646 }
4647
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4648 check_channel_flags:
4649 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4650 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4651 /* if we've just closed an output, let's switch */
4652 txn->rsp.msg_state = HTTP_MSG_CLOSING;
4653 goto http_msg_closing;
4654 }
4655
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4656 wait_other_side:
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4657 /* We force the response to leave immediately if we're waiting for the
4658 * other side, since there is no pending shutdown to push it out.
4659 */
4660 if (!channel_is_empty(chn))
4661 chn->flags |= CF_SEND_DONTWAIT;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4662 return txn->rsp.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4663}
4664
4665
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4666/* Resync the request and response state machines. */
4667void http_resync_states(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4668{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4669 struct http_txn *txn = s->txn;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4670#ifdef DEBUG_FULL
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4671 int old_req_state = txn->req.msg_state;
4672 int old_res_state = txn->rsp.msg_state;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4673#endif
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4674
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4675 http_sync_req_state(s);
4676 while (1) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4677 if (!http_sync_res_state(s))
4678 break;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4679 if (!http_sync_req_state(s))
4680 break;
4681 }
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]4682
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4683 DPRINTF(stderr,"[%u] %s: stream=%p old=%s,%s cur=%s,%s "
4684 "req->analysers=0x%08x res->analysers=0x%08x\n",
4685 now_ms, __FUNCTION__, s,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]4686 h1_msg_state_str(old_req_state), h1_msg_state_str(old_res_state),
4687 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]4688 s->req.analysers, s->res.analysers);
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4689
4690
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4691 /* OK, both state machines agree on a compatible state.
4692 * There are a few cases we're interested in :
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4693 * - HTTP_MSG_CLOSED on both sides means we've reached the end in both
4694 * directions, so let's simply disable both analysers.
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4695 * - HTTP_MSG_CLOSED on the response only or HTTP_MSG_ERROR on either
4696 * means we must abort the request.
4697 * - HTTP_MSG_TUNNEL on either means we have to disable analyser on
4698 * corresponding channel.
4699 * - HTTP_MSG_DONE or HTTP_MSG_CLOSED on the request and HTTP_MSG_DONE
4700 * on the response with server-close mode means we've completed one
4701 * request and we must re-initialize the server connection.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4702 */
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4703 if (txn->req.msg_state == HTTP_MSG_CLOSED &&
4704 txn->rsp.msg_state == HTTP_MSG_CLOSED) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4705 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4706 channel_auto_close(&s->req);
4707 channel_auto_read(&s->req);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4708 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4709 channel_auto_close(&s->res);
4710 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4711 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4712 else if (txn->rsp.msg_state == HTTP_MSG_CLOSED ||
4713 txn->rsp.msg_state == HTTP_MSG_ERROR ||
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4714 txn->req.msg_state == HTTP_MSG_ERROR) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4715 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4716 channel_auto_close(&s->res);
4717 channel_auto_read(&s->res);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4718 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4719 channel_abort(&s->req);
4720 channel_auto_close(&s->req);
4721 channel_auto_read(&s->req);
4722 channel_truncate(&s->req);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4723 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4724 else if (txn->req.msg_state == HTTP_MSG_TUNNEL ||
4725 txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4726 if (txn->req.msg_state == HTTP_MSG_TUNNEL) {
4727 s->req.analysers &= AN_REQ_FLT_END;
4728 if (HAS_REQ_DATA_FILTERS(s))
4729 s->req.analysers |= AN_REQ_FLT_XFER_DATA;
4730 }
4731 if (txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4732 s->res.analysers &= AN_RES_FLT_END;
4733 if (HAS_RSP_DATA_FILTERS(s))
4734 s->res.analysers |= AN_RES_FLT_XFER_DATA;
4735 }
4736 channel_auto_close(&s->req);
4737 channel_auto_read(&s->req);
4738 channel_auto_close(&s->res);
4739 channel_auto_read(&s->res);
4740 }
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4741 else if ((txn->req.msg_state == HTTP_MSG_DONE ||
4742 txn->req.msg_state == HTTP_MSG_CLOSED) &&
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4743 txn->rsp.msg_state == HTTP_MSG_DONE &&
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4744 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
4745 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
4746 /* server-close/keep-alive: terminate this transaction,
4747 * possibly killing the server connection and reinitialize
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4748 * a fresh-new transaction, but only once we're sure there's
4749 * enough room in the request and response buffer to process
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]4750 * another request. They must not hold any pending output data
4751 * and the response buffer must realigned
4752 * (realign is done is http_end_txn_clean_session).
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4753 */
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4754 if (s->req.buf->o)
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4755 s->req.flags |= CF_WAKE_WRITE;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4756 else if (s->res.buf->o)
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4757 s->res.flags |= CF_WAKE_WRITE;
Christopher Fauleta81ff602017-07-18 22:01:05 +0200[diff] [blame]4758 else {
4759 s->req.analysers = AN_REQ_FLT_END;
4760 s->res.analysers = AN_RES_FLT_END;
4761 txn->flags |= TX_WAIT_CLEANUP;
4762 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4763 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4764}
4765
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4766/* This function is an analyser which forwards request body (including chunk
4767 * sizes if any). It is called as soon as we must forward, even if we forward
4768 * zero byte. The only situation where it must not be called is when we're in
4769 * tunnel mode and we want to forward till the close. It's used both to forward
4770 * remaining data and to resync after end of body. It expects the msg_state to
4771 * 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]4772 * 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]4773 * When in MSG_DATA or MSG_TRAILERS, it will automatically forward chunk_len
Willy Tarreauc24715e2014-04-17 15:21:20 +0200[diff] [blame]4774 * bytes of pending data + the headers if not already done.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4775 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4776int http_request_forward_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4777{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4778 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4779 struct http_txn *txn = s->txn;
4780 struct http_msg *msg = &s->txn->req;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]4781 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4782
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4783 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
4784 now_ms, __FUNCTION__,
4785 s,
4786 req,
4787 req->rex, req->wex,
4788 req->flags,
4789 req->buf->i,
4790 req->analysers);
4791
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4792 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
4793 return 0;
4794
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4795 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]4796 ((req->flags & CF_SHUTW) && (req->to_forward || req->buf->o))) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4797 /* Output closed while we were sending data. We must abort and
4798 * wake the other side up.
4799 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4800 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4801 msg->msg_state = HTTP_MSG_ERROR;
4802 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]4803 return 1;
4804 }
4805
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4806 /* Note that we don't have to send 100-continue back because we don't
4807 * need the data to complete our job, and it's up to the server to
4808 * decide whether to return 100, 417 or anything else in return of
4809 * an "Expect: 100-continue" header.
4810 */
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4811 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4812 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
4813 ? HTTP_MSG_CHUNK_SIZE
4814 : HTTP_MSG_DATA);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4815
4816 /* TODO/filters: when http-buffer-request option is set or if a
4817 * rule on url_param exists, the first chunk size could be
4818 * already parsed. In that case, msg->next is after the chunk
4819 * size (including the CRLF after the size). So this case should
4820 * be handled to */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4821 }
4822
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4823 /* Some post-connect processing might want us to refrain from starting to
4824 * forward data. Currently, the only reason for this is "balance url_param"
4825 * whichs need to parse/process the request after we've enabled forwarding.
4826 */
4827 if (unlikely(msg->flags & HTTP_MSGF_WAIT_CONN)) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4828 if (!(s->res.flags & CF_READ_ATTACHED)) {
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4829 channel_auto_connect(req);
Willy Tarreau644c1012014-04-30 18:11:11 +0200[diff] [blame]4830 req->flags |= CF_WAKE_CONNECT;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4831 goto missing_data_or_waiting;
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4832 }
4833 msg->flags &= ~HTTP_MSGF_WAIT_CONN;
4834 }
4835
Willy Tarreau80a92c02014-03-12 10:41:13 +0100[diff] [blame]4836 /* in most states, we should abort in case of early close */
4837 channel_auto_close(req);
4838
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4839 if (req->to_forward) {
4840 /* We can't process the buffer's contents yet */
4841 req->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4842 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4843 }
4844
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4845 if (msg->msg_state < HTTP_MSG_DONE) {
4846 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
4847 ? http_msg_forward_chunked_body(s, msg)
4848 : http_msg_forward_body(s, msg));
4849 if (!ret)
4850 goto missing_data_or_waiting;
4851 if (ret < 0)
4852 goto return_bad_req;
4853 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4854
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4855 /* other states, DONE...TUNNEL */
4856 /* we don't want to forward closes on DONE except in tunnel mode. */
4857 if ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
4858 channel_dont_close(req);
Willy Tarreau5c54c712010-07-17 08:02:58 +0200[diff] [blame]4859
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4860 http_resync_states(s);
4861 if (!(req->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4862 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
4863 if (req->flags & CF_SHUTW) {
4864 /* request errors are most likely due to the
4865 * server aborting the transfer. */
4866 goto aborted_xfer;
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4867 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4868 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]4869 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]4870 goto return_bad_req;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4871 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4872 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4873 }
4874
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4875 /* If "option abortonclose" is set on the backend, we want to monitor
4876 * the client's connection and forward any shutdown notification to the
4877 * server, which will decide whether to close or to go on processing the
4878 * request. We only do that in tunnel mode, and not in other modes since
4879 * it can be abused to exhaust source ports. */
4880 if (s->be->options & PR_O_ABRT_CLOSE) {
4881 channel_auto_read(req);
4882 if ((req->flags & (CF_SHUTR|CF_READ_NULL)) &&
4883 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN))
4884 s->si[1].flags |= SI_FL_NOLINGER;
4885 channel_auto_close(req);
4886 }
4887 else if (s->txn->meth == HTTP_METH_POST) {
4888 /* POST requests may require to read extra CRLF sent by broken
4889 * browsers and which could cause an RST to be sent upon close
4890 * on some systems (eg: Linux). */
4891 channel_auto_read(req);
4892 }
4893 return 0;
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]4894
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4895 missing_data_or_waiting:
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4896 /* stop waiting for data if the input is closed before the end */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]4897 if (msg->msg_state < HTTP_MSG_ENDING && req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4898 if (!(s->flags & SF_ERR_MASK))
4899 s->flags |= SF_ERR_CLICL;
4900 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4901 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4902 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4903 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4904 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4905 }
4906
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4907 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
4908 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4909 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4910 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4911
4912 goto return_bad_req_stats_ok;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4913 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4914
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4915 /* waiting for the last bits to leave the buffer */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4916 if (req->flags & CF_SHUTW)
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4917 goto aborted_xfer;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4918
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]4919 /* When TE: chunked is used, we need to get there again to parse remaining
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4920 * 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]4921 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4922 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4923 channel_dont_close(req);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]4924
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4925 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4926 * 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]4927 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]4928 * modes are already handled by the stream sock layer. We must not do
4929 * this in content-length mode because it could present the MSG_MORE
4930 * flag with the last block of forwarded data, which would cause an
4931 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4932 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4933 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4934 req->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4935
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4936 return 0;
4937
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4938 return_bad_req: /* let's centralize all bad requests */
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4939 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4940 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]4941 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]4942
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4943 return_bad_req_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4944 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4945 txn->req.msg_state = HTTP_MSG_ERROR;
4946 if (txn->status) {
4947 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4948 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4949 } else {
4950 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4951 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4952 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4953 req->analysers &= AN_REQ_FLT_END;
4954 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]4955
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4956 if (!(s->flags & SF_ERR_MASK))
4957 s->flags |= SF_ERR_PRXCOND;
4958 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4959 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4960 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4961 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4962 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4963 }
4964 return 0;
4965
4966 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4967 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4968 txn->req.msg_state = HTTP_MSG_ERROR;
4969 if (txn->status) {
4970 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4971 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4972 } else {
4973 txn->status = 502;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4974 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4975 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4976 req->analysers &= AN_REQ_FLT_END;
4977 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]4978
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4979 HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
4980 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4981 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4982 HA_ATOMIC_ADD(&objt_server(s->target)->counters.srv_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4983
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4984 if (!(s->flags & SF_ERR_MASK))
4985 s->flags |= SF_ERR_SRVCL;
4986 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4987 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4988 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4989 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4990 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4991 }
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4992 return 0;
4993}
4994
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4995/* This stream analyser waits for a complete HTTP response. It returns 1 if the
4996 * processing can continue on next analysers, or zero if it either needs more
4997 * data or wants to immediately abort the response (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4998 * 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]4999 * when it has nothing left to do, and may remove any analyser when it wants to
5000 * abort.
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5001 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5002int http_wait_for_response(struct stream *s, struct channel *rep, int an_bit)
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5003{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5004 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5005 struct http_txn *txn = s->txn;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5006 struct http_msg *msg = &txn->rsp;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5007 struct hdr_ctx ctx;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5008 int use_close_only;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5009 int cur_idx;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5010 int n;
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]5011
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5012 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]5013 now_ms, __FUNCTION__,
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5014 s,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5015 rep,
5016 rep->rex, rep->wex,
5017 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5018 rep->buf->i,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5019 rep->analysers);
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200[diff] [blame]5020
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5021 /*
5022 * Now parse the partial (or complete) lines.
5023 * We will check the response syntax, and also join multi-line
5024 * headers. An index of all the lines will be elaborated while
5025 * parsing.
5026 *
5027 * For the parsing, we use a 28 states FSM.
5028 *
5029 * Here is the information we currently have :
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5030 * rep->buf->p = beginning of response
5031 * rep->buf->p + msg->eoh = end of processed headers / start of current one
5032 * rep->buf->p + rep->buf->i = end of input data
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]5033 * msg->eol = end of current header or line (LF or CRLF)
5034 * msg->next = first non-visited byte
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5035 */
5036
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5037 next_one:
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5038 /* There's a protected area at the end of the buffer for rewriting
5039 * purposes. We don't want to start to parse the request if the
5040 * protected area is affected, because we may have to move processed
5041 * data later, which is much more complicated.
5042 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5043 if (buffer_not_empty(rep->buf) && msg->msg_state < HTTP_MSG_ERROR) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]5044 if (unlikely(!channel_is_rewritable(rep))) {
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5045 /* some data has still not left the buffer, wake us once that's done */
5046 if (rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
5047 goto abort_response;
5048 channel_dont_close(rep);
5049 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]5050 rep->flags |= CF_WAKE_WRITE;
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5051 return 0;
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5052 }
5053
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5054 if (unlikely(bi_end(rep->buf) < b_ptr(rep->buf, msg->next) ||
5055 bi_end(rep->buf) > rep->buf->data + rep->buf->size - global.tune.maxrewrite))
5056 buffer_slow_realign(rep->buf);
5057
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5058 if (likely(msg->next < rep->buf->i))
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]5059 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5060 }
5061
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5062 /* 1: we might have to print this header in debug mode */
5063 if (unlikely((global.mode & MODE_DEBUG) &&
5064 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]5065 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5066 char *eol, *sol;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5067
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5068 sol = rep->buf->p;
5069 eol = sol + (msg->sl.st.l ? msg->sl.st.l : rep->buf->i);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5070 debug_hdr("srvrep", s, sol, eol);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5071
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5072 sol += hdr_idx_first_pos(&txn->hdr_idx);
5073 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5074
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5075 while (cur_idx) {
5076 eol = sol + txn->hdr_idx.v[cur_idx].len;
5077 debug_hdr("srvhdr", s, sol, eol);
5078 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
5079 cur_idx = txn->hdr_idx.v[cur_idx].next;
5080 }
5081 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5082
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5083 /*
5084 * Now we quickly check if we have found a full valid response.
5085 * If not so, we check the FD and buffer states before leaving.
5086 * A full response is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5087 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5088 * responses are checked first.
5089 *
5090 * Depending on whether the client is still there or not, we
5091 * may send an error response back or not. Note that normally
5092 * we should only check for HTTP status there, and check I/O
5093 * errors somewhere else.
5094 */
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5095
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5096 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5097 /* Invalid response */
5098 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
5099 /* we detected a parsing error. We want to archive this response
5100 * in the dedicated proxy area for later troubleshooting.
5101 */
5102 hdr_response_bad:
5103 if (msg->msg_state == HTTP_MSG_ERROR || msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5104 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]5105
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5106 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5107 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5108 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5109 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5110 }
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]5111 abort_response:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5112 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5113 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5114 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5115 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5116 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5117 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5118
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5119 if (!(s->flags & SF_ERR_MASK))
5120 s->flags |= SF_ERR_PRXCOND;
5121 if (!(s->flags & SF_FINST_MASK))
5122 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5123
5124 return 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5125 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5126
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5127 /* too large response does not fit in buffer. */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5128 else if (buffer_full(rep->buf, global.tune.maxrewrite)) {
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]5129 if (msg->err_pos < 0)
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5130 msg->err_pos = rep->buf->i;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5131 goto hdr_response_bad;
5132 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5133
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5134 /* read error */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5135 else if (rep->flags & CF_READ_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5136 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5137 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]5138 else if (txn->flags & TX_NOT_FIRST)
5139 goto abort_keep_alive;
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5140
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5141 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5142 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5143 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5144 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_ERROR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5145 }
Willy Tarreau461f6622008-08-15 23:43:19 +0200[diff] [blame]5146
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5147 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5148 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5149 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5150 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5151 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5152 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau816b9792009-09-15 21:25:21 +0200[diff] [blame]5153
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5154 if (!(s->flags & SF_ERR_MASK))
5155 s->flags |= SF_ERR_SRVCL;
5156 if (!(s->flags & SF_FINST_MASK))
5157 s->flags |= SF_FINST_H;
Willy Tarreaucebf57e2008-08-15 18:16:37 +0200[diff] [blame]5158 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5159 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5160
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +0200[diff] [blame]5161 /* read timeout : return a 504 to the client. */
5162 else if (rep->flags & CF_READ_TIMEOUT) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5163 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5164 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]5165
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5166 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5167 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5168 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5169 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_TIMEOUT);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5170 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5171
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5172 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5173 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5174 txn->status = 504;
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 Tarreau4076a152009-04-02 15:18:36 +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_SRVTO;
5181 if (!(s->flags & SF_FINST_MASK))
5182 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5183 return 0;
5184 }
Willy Tarreaua7c52762008-08-16 18:40:18 +0200[diff] [blame]5185
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5186 /* client abort with an abortonclose */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5187 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]5188 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
5189 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5190 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5191 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5192
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5193 rep->analysers &= AN_RES_FLT_END;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5194 channel_auto_close(rep);
5195
5196 txn->status = 400;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5197 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5198 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5199
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5200 if (!(s->flags & SF_ERR_MASK))
5201 s->flags |= SF_ERR_CLICL;
5202 if (!(s->flags & SF_FINST_MASK))
5203 s->flags |= SF_FINST_H;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5204
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5205 /* process_stream() will take care of the error */
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5206 return 0;
5207 }
5208
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5209 /* close from server, capture the response if the server has started to respond */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5210 else if (rep->flags & CF_SHUTR) {
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5211 if (msg->msg_state >= HTTP_MSG_RPVER || msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5212 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]5213 else if (txn->flags & TX_NOT_FIRST)
5214 goto abort_keep_alive;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5215
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5216 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5217 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5218 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5219 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_BROKEN_PIPE);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5220 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5221
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5222 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5223 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5224 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5225 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5226 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5227 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5228
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5229 if (!(s->flags & SF_ERR_MASK))
5230 s->flags |= SF_ERR_SRVCL;
5231 if (!(s->flags & SF_FINST_MASK))
5232 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5233 return 0;
5234 }
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5235
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5236 /* write error to client (we don't send any message then) */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5237 else if (rep->flags & CF_WRITE_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5238 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5239 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]5240 else if (txn->flags & TX_NOT_FIRST)
5241 goto abort_keep_alive;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5242
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5243 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5244 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5245 channel_auto_close(rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5246
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5247 if (!(s->flags & SF_ERR_MASK))
5248 s->flags |= SF_ERR_CLICL;
5249 if (!(s->flags & SF_FINST_MASK))
5250 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5251
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5252 /* process_stream() will take care of the error */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5253 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5254 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5255
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5256 channel_dont_close(rep);
Willy Tarreau3f3997e2013-12-15 15:21:32 +0100[diff] [blame]5257 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5258 return 0;
5259 }
5260
5261 /* More interesting part now : we know that we have a complete
5262 * response which at least looks like HTTP. We have an indicator
5263 * of each header's length, so we can parse them quickly.
5264 */
5265
5266 if (unlikely(msg->err_pos >= 0))
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5267 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]5268
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5269 /*
5270 * 1: get the status code
5271 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5272 n = rep->buf->p[msg->sl.st.c] - '0';
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5273 if (n < 1 || n > 5)
5274 n = 0;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5275 /* when the client triggers a 4xx from the server, it's most often due
5276 * to a missing object or permission. These events should be tracked
5277 * because if they happen often, it may indicate a brute force or a
5278 * vulnerability scan.
5279 */
5280 if (n == 4)
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5281 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5282
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5283 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5284 HA_ATOMIC_ADD(&objt_server(s->target)->counters.p.http.rsp[n], 1);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5285
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]5286 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
5287 * exactly one digit "." one digit. This check may be disabled using
5288 * option accept-invalid-http-response.
5289 */
5290 if (!(s->be->options2 & PR_O2_RSPBUG_OK)) {
5291 if (msg->sl.st.v_l != 8) {
5292 msg->err_pos = 0;
5293 goto hdr_response_bad;
5294 }
5295
5296 if (rep->buf->p[4] != '/' ||
5297 !isdigit((unsigned char)rep->buf->p[5]) ||
5298 rep->buf->p[6] != '.' ||
5299 !isdigit((unsigned char)rep->buf->p[7])) {
5300 msg->err_pos = 4;
5301 goto hdr_response_bad;
5302 }
5303 }
5304
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5305 /* check if the response is HTTP/1.1 or above */
5306 if ((msg->sl.st.v_l == 8) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5307 ((rep->buf->p[5] > '1') ||
5308 ((rep->buf->p[5] == '1') && (rep->buf->p[7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5309 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5310
5311 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]5312 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]5313
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5314 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5315 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5316
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5317 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]5318
Willy Tarreau39650402010-03-15 19:44:39 +0100[diff] [blame]5319 /* Adjust server's health based on status code. Note: status codes 501
5320 * and 505 are triggered on demand by client request, so we must not
5321 * count them as server failures.
5322 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5323 if (objt_server(s->target)) {
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5324 if (txn->status >= 100 && (txn->status < 500 || txn->status == 501 || txn->status == 505))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5325 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_OK);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5326 else
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5327 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_STS);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5328 }
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5329
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5330 /*
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5331 * We may be facing a 100-continue response, or any other informational
5332 * 1xx response which is non-final, in which case this is not the right
5333 * response, and we're waiting for the next one. Let's allow this response
5334 * to go to the client and wait for the next one. There's an exception for
5335 * 101 which is used later in the code to switch protocols.
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5336 */
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5337 if (txn->status < 200 &&
5338 (txn->status == 100 || txn->status >= 102)) {
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5339 hdr_idx_init(&txn->hdr_idx);
5340 msg->next -= channel_forward(rep, msg->next);
5341 msg->msg_state = HTTP_MSG_RPBEFORE;
5342 txn->status = 0;
5343 s->logs.t_data = -1; /* was not a response yet */
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5344 FLT_STRM_CB(s, flt_http_reset(s, msg));
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5345 goto next_one;
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5346 }
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5347
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5348 /*
5349 * 2: check for cacheability.
5350 */
5351
5352 switch (txn->status) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5353 case 200:
5354 case 203:
5355 case 206:
5356 case 300:
5357 case 301:
5358 case 410:
5359 /* RFC2616 @13.4:
5360 * "A response received with a status code of
5361 * 200, 203, 206, 300, 301 or 410 MAY be stored
5362 * by a cache (...) unless a cache-control
5363 * directive prohibits caching."
5364 *
5365 * RFC2616 @9.5: POST method :
5366 * "Responses to this method are not cacheable,
5367 * unless the response includes appropriate
5368 * Cache-Control or Expires header fields."
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5369 */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5370 if (likely(txn->meth != HTTP_METH_POST) &&
Willy Tarreau67402132012-05-31 20:40:20 +0200[diff] [blame]5371 ((s->be->options & PR_O_CHK_CACHE) || (s->be->ck_opts & PR_CK_NOC)))
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5372 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
5373 break;
5374 default:
5375 break;
5376 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5377
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5378 /*
5379 * 3: we may need to capture headers
5380 */
5381 s->logs.logwait &= ~LW_RESP;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5382 if (unlikely((s->logs.logwait & LW_RSPHDR) && s->res_cap))
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5383 capture_headers(rep->buf->p, &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5384 s->res_cap, sess->fe->rsp_cap);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5385
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5386 /* 4: determine the transfer-length according to RFC2616 #4.4, updated
5387 * by RFC7230#3.3.3 :
5388 *
5389 * The length of a message body is determined by one of the following
5390 * (in order of precedence):
5391 *
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5392 * 1. Any 2xx (Successful) response to a CONNECT request implies that
5393 * the connection will become a tunnel immediately after the empty
5394 * line that concludes the header fields. A client MUST ignore
5395 * any Content-Length or Transfer-Encoding header fields received
5396 * in such a message. Any 101 response (Switching Protocols) is
5397 * managed in the same manner.
5398 *
5399 * 2. Any response to a HEAD request and any response with a 1xx
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5400 * (Informational), 204 (No Content), or 304 (Not Modified) status
5401 * code is always terminated by the first empty line after the
5402 * header fields, regardless of the header fields present in the
5403 * message, and thus cannot contain a message body.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5404 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5405 * 3. If a Transfer-Encoding header field is present and the chunked
5406 * transfer coding (Section 4.1) is the final encoding, the message
5407 * body length is determined by reading and decoding the chunked
5408 * data until the transfer coding indicates the data is complete.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5409 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5410 * If a Transfer-Encoding header field is present in a response and
5411 * the chunked transfer coding is not the final encoding, the
5412 * message body length is determined by reading the connection until
5413 * it is closed by the server. If a Transfer-Encoding header field
5414 * is present in a request and the chunked transfer coding is not
5415 * the final encoding, the message body length cannot be determined
5416 * reliably; the server MUST respond with the 400 (Bad Request)
5417 * status code and then close the connection.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5418 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5419 * If a message is received with both a Transfer-Encoding and a
5420 * Content-Length header field, the Transfer-Encoding overrides the
5421 * Content-Length. Such a message might indicate an attempt to
5422 * perform request smuggling (Section 9.5) or response splitting
5423 * (Section 9.4) and ought to be handled as an error. A sender MUST
5424 * remove the received Content-Length field prior to forwarding such
5425 * a message downstream.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5426 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5427 * 4. If a message is received without Transfer-Encoding and with
5428 * either multiple Content-Length header fields having differing
5429 * field-values or a single Content-Length header field having an
5430 * invalid value, then the message framing is invalid and the
5431 * recipient MUST treat it as an unrecoverable error. If this is a
5432 * request message, the server MUST respond with a 400 (Bad Request)
5433 * status code and then close the connection. If this is a response
5434 * message received by a proxy, the proxy MUST close the connection
5435 * to the server, discard the received response, and send a 502 (Bad
5436 * Gateway) response to the client. If this is a response message
5437 * received by a user agent, the user agent MUST close the
5438 * connection to the server and discard the received response.
5439 *
5440 * 5. If a valid Content-Length header field is present without
5441 * Transfer-Encoding, its decimal value defines the expected message
5442 * body length in octets. If the sender closes the connection or
5443 * the recipient times out before the indicated number of octets are
5444 * received, the recipient MUST consider the message to be
5445 * incomplete and close the connection.
5446 *
5447 * 6. If this is a request message and none of the above are true, then
5448 * the message body length is zero (no message body is present).
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5449 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5450 * 7. Otherwise, this is a response message without a declared message
5451 * body length, so the message body length is determined by the
5452 * number of octets received prior to the server closing the
5453 * connection.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5454 */
5455
5456 /* Skip parsing if no content length is possible. The response flags
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5457 * remain 0 as well as the chunk_len, which may or may not mirror
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5458 * the real header value, and we note that we know the response's length.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5459 * FIXME: should we parse anyway and return an error on chunked encoding ?
5460 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5461 if (unlikely((txn->meth == HTTP_METH_CONNECT && txn->status == 200) ||
5462 txn->status == 101)) {
5463 /* Either we've established an explicit tunnel, or we're
5464 * switching the protocol. In both cases, we're very unlikely
5465 * to understand the next protocols. We have to switch to tunnel
5466 * mode, so that we transfer the request and responses then let
5467 * this protocol pass unmodified. When we later implement specific
5468 * parsers for such protocols, we'll want to check the Upgrade
5469 * header which contains information about that protocol for
5470 * responses with status 101 (eg: see RFC2817 about TLS).
5471 */
5472 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_TUN;
5473 msg->flags |= HTTP_MSGF_XFER_LEN;
5474 goto end;
5475 }
5476
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5477 if (txn->meth == HTTP_METH_HEAD ||
5478 (txn->status >= 100 && txn->status < 200) ||
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5479 txn->status == 204 || txn->status == 304) {
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5480 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5481 goto skip_content_length;
5482 }
5483
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5484 use_close_only = 0;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5485 ctx.idx = 0;
Willy Tarreau4979d5c2015-05-01 10:06:30 +0200[diff] [blame]5486 while (http_find_header2("Transfer-Encoding", 17, rep->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5487 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5488 msg->flags |= (HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
5489 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5490 /* bad transfer-encoding (chunked followed by something else) */
5491 use_close_only = 1;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5492 msg->flags &= ~(HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5493 break;
5494 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5495 }
5496
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5497 /* Chunked responses must have their content-length removed */
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5498 ctx.idx = 0;
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]5499 if (use_close_only || (msg->flags & HTTP_MSGF_TE_CHNK)) {
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5500 while (http_find_header2("Content-Length", 14, rep->buf->p, &txn->hdr_idx, &ctx))
5501 http_remove_header2(msg, &txn->hdr_idx, &ctx);
5502 }
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]5503 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]5504 signed long long cl;
5505
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5506 if (!ctx.vlen) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5507 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5508 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5509 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5510
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5511 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5512 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5513 goto hdr_response_bad; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5514 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5515
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5516 if (cl < 0) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5517 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5518 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5519 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5520
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5521 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5522 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5523 goto hdr_response_bad; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5524 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5525
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5526 msg->flags |= HTTP_MSGF_CNT_LEN | HTTP_MSGF_XFER_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5527 msg->body_len = msg->chunk_len = cl;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5528 }
5529
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5530 skip_content_length:
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5531 /* Now we have to check if we need to modify the Connection header.
5532 * This is more difficult on the response than it is on the request,
5533 * because we can have two different HTTP versions and we don't know
5534 * how the client will interprete a response. For instance, let's say
5535 * that the client sends a keep-alive request in HTTP/1.0 and gets an
5536 * HTTP/1.1 response without any header. Maybe it will bound itself to
5537 * HTTP/1.0 because it only knows about it, and will consider the lack
5538 * of header as a close, or maybe it knows HTTP/1.1 and can consider
5539 * the lack of header as a keep-alive. Thus we will use two flags
5540 * indicating how a request MAY be understood by the client. In case
5541 * of multiple possibilities, we'll fix the header to be explicit. If
5542 * ambiguous cases such as both close and keepalive are seen, then we
5543 * will fall back to explicit close. Note that we won't take risks with
5544 * HTTP/1.0 clients which may not necessarily understand keep-alive.
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5545 * See doc/internals/connection-header.txt for the complete matrix.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5546 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5547 if ((txn->status >= 200) && !(txn->flags & TX_HDR_CONN_PRS) &&
5548 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN ||
5549 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
5550 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5551 int to_del = 0;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5552
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5553 /* this situation happens when combining pretend-keepalive with httpclose. */
5554 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5555 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5556 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5557 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
5558
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5559 /* on unknown transfer length, we must close */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5560 if (!(msg->flags & HTTP_MSGF_XFER_LEN) &&
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5561 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
5562 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5563
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5564 /* now adjust header transformations depending on current state */
5565 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN ||
5566 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
5567 to_del |= 2; /* remove "keep-alive" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5568 if (!(msg->flags & HTTP_MSGF_VER_11))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5569 to_del |= 1; /* remove "close" for HTTP/1.0 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5570 }
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5571 else { /* SCL / KAL */
5572 to_del |= 1; /* remove "close" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5573 if (txn->req.flags & msg->flags & HTTP_MSGF_VER_11)
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5574 to_del |= 2; /* remove "keep-alive" on pure 1.1 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5575 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5576
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5577 /* Parse and remove some headers from the connection header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]5578 http_parse_connection_header(txn, msg, to_del);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5579
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5580 /* Some keep-alive responses are converted to Server-close if
5581 * the server wants to close.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5582 */
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5583 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL) {
5584 if ((txn->flags & TX_HDR_CONN_CLO) ||
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5585 (!(txn->flags & TX_HDR_CONN_KAL) && !(msg->flags & HTTP_MSGF_VER_11)))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5586 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_SCL;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]5587 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5588 }
5589
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5590 end:
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5591 /* we want to have the response time before we start processing it */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5592 s->logs.t_data = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5593
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5594 /* end of job, return OK */
5595 rep->analysers &= ~an_bit;
5596 rep->analyse_exp = TICK_ETERNITY;
5597 channel_auto_close(rep);
5598 return 1;
5599
5600 abort_keep_alive:
5601 /* A keep-alive request to the server failed on a network error.
5602 * The client is required to retry. We need to close without returning
5603 * any other information so that the client retries.
5604 */
5605 txn->status = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5606 rep->analysers &= AN_RES_FLT_END;
5607 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5608 channel_auto_close(rep);
5609 s->logs.logwait = 0;
5610 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5611 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5612 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5613 http_reply_and_close(s, txn->status, NULL);
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5614 return 0;
5615}
5616
5617/* This function performs all the processing enabled for the current response.
5618 * It normally returns 1 unless it wants to break. It relies on buffers flags,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5619 * and updates s->res.analysers. It might make sense to explode it into several
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5620 * other functions. It works like process_request (see indications above).
5621 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5622int 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]5623{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5624 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5625 struct http_txn *txn = s->txn;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5626 struct http_msg *msg = &txn->rsp;
5627 struct proxy *cur_proxy;
5628 struct cond_wordlist *wl;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]5629 enum rule_result ret = HTTP_RULE_RES_CONT;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5630
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5631 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]5632 now_ms, __FUNCTION__,
5633 s,
5634 rep,
5635 rep->rex, rep->wex,
5636 rep->flags,
5637 rep->buf->i,
5638 rep->analysers);
5639
5640 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) /* we need more data */
5641 return 0;
5642
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5643 /* The stats applet needs to adjust the Connection header but we don't
5644 * apply any filter there.
5645 */
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5646 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
5647 rep->analysers &= ~an_bit;
5648 rep->analyse_exp = TICK_ETERNITY;
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5649 goto skip_filters;
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5650 }
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5651
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5652 /*
5653 * We will have to evaluate the filters.
5654 * As opposed to version 1.2, now they will be evaluated in the
5655 * filters order and not in the header order. This means that
5656 * each filter has to be validated among all headers.
5657 *
5658 * Filters are tried with ->be first, then with ->fe if it is
5659 * different from ->be.
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5660 *
5661 * Maybe we are in resume condiion. In this case I choose the
5662 * "struct proxy" which contains the rule list matching the resume
5663 * pointer. If none of theses "struct proxy" match, I initialise
5664 * the process with the first one.
5665 *
5666 * In fact, I check only correspondance betwwen the current list
5667 * pointer and the ->fe rule list. If it doesn't match, I initialize
5668 * the loop with the ->be.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5669 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5670 if (s->current_rule_list == &sess->fe->http_res_rules)
5671 cur_proxy = sess->fe;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5672 else
5673 cur_proxy = s->be;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5674 while (1) {
5675 struct proxy *rule_set = cur_proxy;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5676
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5677 /* evaluate http-response rules */
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5678 if (ret == HTTP_RULE_RES_CONT) {
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]5679 ret = http_res_get_intercept_rule(cur_proxy, &cur_proxy->http_res_rules, s);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]5680
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5681 if (ret == HTTP_RULE_RES_BADREQ)
5682 goto return_srv_prx_502;
5683
5684 if (ret == HTTP_RULE_RES_DONE) {
5685 rep->analysers &= ~an_bit;
5686 rep->analyse_exp = TICK_ETERNITY;
5687 return 1;
5688 }
5689 }
5690
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5691 /* we need to be called again. */
5692 if (ret == HTTP_RULE_RES_YIELD) {
5693 channel_dont_close(rep);
5694 return 0;
5695 }
5696
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5697 /* try headers filters */
5698 if (rule_set->rsp_exp != NULL) {
5699 if (apply_filters_to_response(s, rep, rule_set) < 0) {
5700 return_bad_resp:
5701 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5702 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5703 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_RSP);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5704 }
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5705 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5706 return_srv_prx_502:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5707 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5708 txn->status = 502;
5709 s->logs.t_data = -1; /* was not a valid response */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5710 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5711 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5712 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5713 if (!(s->flags & SF_ERR_MASK))
5714 s->flags |= SF_ERR_PRXCOND;
5715 if (!(s->flags & SF_FINST_MASK))
5716 s->flags |= SF_FINST_H;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5717 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5718 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5719 }
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5720
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5721 /* has the response been denied ? */
5722 if (txn->flags & TX_SVDENY) {
5723 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5724 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_secu, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5725
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5726 HA_ATOMIC_ADD(&s->be->be_counters.denied_resp, 1);
5727 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_resp, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5728 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]5729 HA_ATOMIC_ADD(&sess->listener->counters->denied_resp, 1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5730
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5731 goto return_srv_prx_502;
5732 }
Willy Tarreau0bbc3cf2006-10-15 14:26:02 +0200[diff] [blame]5733
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5734 /* add response headers from the rule sets in the same order */
5735 list_for_each_entry(wl, &rule_set->rsp_add, list) {
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5736 if (txn->status < 200 && txn->status != 101)
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5737 break;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5738 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]5739 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]5740 ret = acl_pass(ret);
5741 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
5742 ret = !ret;
5743 if (!ret)
5744 continue;
5745 }
5746 if (unlikely(http_header_add_tail(&txn->rsp, &txn->hdr_idx, wl->s) < 0))
5747 goto return_bad_resp;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5748 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5749
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5750 /* check whether we're already working on the frontend */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5751 if (cur_proxy == sess->fe)
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5752 break;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5753 cur_proxy = sess->fe;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5754 }
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5755
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5756 /* After this point, this anayzer can't return yield, so we can
5757 * remove the bit corresponding to this analyzer from the list.
5758 *
5759 * Note that the intermediate returns and goto found previously
5760 * reset the analyzers.
5761 */
5762 rep->analysers &= ~an_bit;
5763 rep->analyse_exp = TICK_ETERNITY;
5764
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5765 /* OK that's all we can do for 1xx responses */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5766 if (unlikely(txn->status < 200 && txn->status != 101))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5767 goto skip_header_mangling;
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5768
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5769 /*
5770 * Now check for a server cookie.
5771 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]5772 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]5773 manage_server_side_cookies(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5774
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5775 /*
5776 * Check for cache-control or pragma headers if required.
5777 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5778 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]5779 check_response_for_cacheability(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5780
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5781 /*
5782 * Add server cookie in the response if needed
5783 */
5784 if (objt_server(s->target) && (s->be->ck_opts & PR_CK_INS) &&
5785 !((txn->flags & TX_SCK_FOUND) && (s->be->ck_opts & PR_CK_PSV)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5786 (!(s->flags & SF_DIRECT) ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5787 ((s->be->cookie_maxidle || txn->cookie_last_date) &&
5788 (!txn->cookie_last_date || (txn->cookie_last_date - date.tv_sec) < 0)) ||
5789 (s->be->cookie_maxlife && !txn->cookie_first_date) || // set the first_date
5790 (!s->be->cookie_maxlife && txn->cookie_first_date)) && // remove the first_date
5791 (!(s->be->ck_opts & PR_CK_POST) || (txn->meth == HTTP_METH_POST)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5792 !(s->flags & SF_IGNORE_PRST)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5793 /* the server is known, it's not the one the client requested, or the
5794 * cookie's last seen date needs to be refreshed. We have to
5795 * insert a set-cookie here, except if we want to insert only on POST
5796 * requests and this one isn't. Note that servers which don't have cookies
5797 * (eg: some backup servers) will return a full cookie removal request.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5798 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5799 if (!objt_server(s->target)->cookie) {
5800 chunk_printf(&trash,
5801 "Set-Cookie: %s=; Expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/",
5802 s->be->cookie_name);
5803 }
5804 else {
5805 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]5806
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5807 if (s->be->cookie_maxidle || s->be->cookie_maxlife) {
5808 /* emit last_date, which is mandatory */
5809 trash.str[trash.len++] = COOKIE_DELIM_DATE;
5810 s30tob64((date.tv_sec+3) >> 2, trash.str + trash.len);
5811 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5812
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5813 if (s->be->cookie_maxlife) {
5814 /* emit first_date, which is either the original one or
5815 * the current date.
5816 */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]5817 trash.str[trash.len++] = COOKIE_DELIM_DATE;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5818 s30tob64(txn->cookie_first_date ?
5819 txn->cookie_first_date >> 2 :
5820 (date.tv_sec+3) >> 2, trash.str + trash.len);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]5821 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5822 }
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5823 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5824 chunk_appendf(&trash, "; path=/");
5825 }
Willy Tarreau4992dd22012-05-31 21:02:17 +0200[diff] [blame]5826
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5827 if (s->be->cookie_domain)
5828 chunk_appendf(&trash, "; domain=%s", s->be->cookie_domain);
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5829
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5830 if (s->be->ck_opts & PR_CK_HTTPONLY)
5831 chunk_appendf(&trash, "; HttpOnly");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5832
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5833 if (s->be->ck_opts & PR_CK_SECURE)
5834 chunk_appendf(&trash, "; Secure");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5835
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5836 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx, trash.str, trash.len) < 0))
5837 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5838
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5839 txn->flags &= ~TX_SCK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5840 if (objt_server(s->target)->cookie && (s->flags & SF_DIRECT))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5841 /* the server did not change, only the date was updated */
5842 txn->flags |= TX_SCK_UPDATED;
5843 else
5844 txn->flags |= TX_SCK_INSERTED;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5845
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5846 /* Here, we will tell an eventual cache on the client side that we don't
5847 * want it to cache this reply because HTTP/1.0 caches also cache cookies !
5848 * Some caches understand the correct form: 'no-cache="set-cookie"', but
5849 * others don't (eg: apache <= 1.3.26). So we use 'private' instead.
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5850 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5851 if ((s->be->ck_opts & PR_CK_NOC) && (txn->flags & TX_CACHEABLE)) {
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5852
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5853 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5854
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5855 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx,
5856 "Cache-control: private", 22) < 0))
5857 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5858 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5859 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5860
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5861 /*
5862 * Check if result will be cacheable with a cookie.
5863 * We'll block the response if security checks have caught
5864 * nasty things such as a cacheable cookie.
5865 */
5866 if (((txn->flags & (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) ==
5867 (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) &&
5868 (s->be->options & PR_O_CHK_CACHE)) {
5869 /* we're in presence of a cacheable response containing
5870 * a set-cookie header. We'll block it as requested by
5871 * the 'checkcache' option, and send an alert.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5872 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5873 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5874 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_secu, 1);
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5875
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5876 HA_ATOMIC_ADD(&s->be->be_counters.denied_resp, 1);
5877 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_resp, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5878 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]5879 HA_ATOMIC_ADD(&sess->listener->counters->denied_resp, 1);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5880
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5881 Alert("Blocking cacheable cookie in response from instance %s, server %s.\n",
5882 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
5883 send_log(s->be, LOG_ALERT,
5884 "Blocking cacheable cookie in response from instance %s, server %s.\n",
5885 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
5886 goto return_srv_prx_502;
5887 }
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]5888
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5889 skip_filters:
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5890 /*
5891 * Adjust "Connection: close" or "Connection: keep-alive" if needed.
5892 * If an "Upgrade" token is found, the header is left untouched in order
5893 * 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]5894 * if anything but "Upgrade" is present in the Connection header. We don't
5895 * want to touch any 101 response either since it's switching to another
5896 * protocol.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5897 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5898 if ((txn->status != 101) && !(txn->flags & TX_HDR_CONN_UPG) &&
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5899 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5900 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5901 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
5902 unsigned int want_flags = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5903
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5904 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
5905 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
5906 /* we want a keep-alive response here. Keep-alive header
5907 * required if either side is not 1.1.
5908 */
5909 if (!(txn->req.flags & msg->flags & HTTP_MSGF_VER_11))
5910 want_flags |= TX_CON_KAL_SET;
5911 }
5912 else {
5913 /* we want a close response here. Close header required if
5914 * the server is 1.1, regardless of the client.
5915 */
5916 if (msg->flags & HTTP_MSGF_VER_11)
5917 want_flags |= TX_CON_CLO_SET;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5918 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5919
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5920 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
5921 http_change_connection_header(txn, msg, want_flags);
5922 }
5923
5924 skip_header_mangling:
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]5925 /* Always enter in the body analyzer */
5926 rep->analysers &= ~AN_RES_FLT_XFER_DATA;
5927 rep->analysers |= AN_RES_HTTP_XFER_BODY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5928
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5929 /* if the user wants to log as soon as possible, without counting
5930 * bytes from the server, then this is the right moment. We have
5931 * to temporarily assign bytes_out to log what we currently have.
5932 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5933 if (!LIST_ISEMPTY(&sess->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5934 s->logs.t_close = s->logs.t_data; /* to get a valid end date */
5935 s->logs.bytes_out = txn->rsp.eoh;
5936 s->do_log(s);
5937 s->logs.bytes_out = 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5938 }
Willy Tarreaue3fa6e52010-01-04 22:57:43 +0100[diff] [blame]5939 return 1;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5940}
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5941
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5942/* This function is an analyser which forwards response body (including chunk
5943 * sizes if any). It is called as soon as we must forward, even if we forward
5944 * zero byte. The only situation where it must not be called is when we're in
5945 * tunnel mode and we want to forward till the close. It's used both to forward
5946 * remaining data and to resync after end of body. It expects the msg_state to
5947 * 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]5948 * 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]5949 *
5950 * It is capable of compressing response data both in content-length mode and
5951 * in chunked mode. The state machines follows different flows depending on
5952 * whether content-length and chunked modes are used, since there are no
5953 * trailers in content-length :
5954 *
5955 * chk-mode cl-mode
5956 * ,----- BODY -----.
5957 * / \
5958 * V size > 0 V chk-mode
5959 * .--> SIZE -------------> DATA -------------> CRLF
5960 * | | size == 0 | last byte |
5961 * | v final crlf v inspected |
5962 * | TRAILERS -----------> DONE |
5963 * | |
5964 * `----------------------------------------------'
5965 *
5966 * Compression only happens in the DATA state, and must be flushed in final
5967 * states (TRAILERS/DONE) or when leaving on missing data. Normal forwarding
5968 * is performed at once on final states for all bytes parsed, or when leaving
5969 * on missing data.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5970 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5971int http_response_forward_body(struct stream *s, struct channel *res, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5972{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5973 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5974 struct http_txn *txn = s->txn;
5975 struct http_msg *msg = &s->txn->rsp;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5976 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5977
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]5978 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
5979 now_ms, __FUNCTION__,
5980 s,
5981 res,
5982 res->rex, res->wex,
5983 res->flags,
5984 res->buf->i,
5985 res->analysers);
5986
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5987 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
5988 return 0;
5989
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5990 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]5991 ((res->flags & CF_SHUTW) && (res->to_forward || res->buf->o)) ||
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5992 !s->req.analysers) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]5993 /* Output closed while we were sending data. We must abort and
5994 * wake the other side up.
5995 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5996 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]5997 msg->msg_state = HTTP_MSG_ERROR;
5998 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]5999 return 1;
6000 }
6001
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6002 /* in most states, we should abort in case of early close */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6003 channel_auto_close(res);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]6004
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6005 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6006 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
6007 ? HTTP_MSG_CHUNK_SIZE
6008 : HTTP_MSG_DATA);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6009 }
6010
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6011 if (res->to_forward) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6012 /* We can't process the buffer's contents yet */
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6013 res->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6014 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6015 }
6016
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6017 if (msg->msg_state < HTTP_MSG_DONE) {
6018 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
6019 ? http_msg_forward_chunked_body(s, msg)
6020 : http_msg_forward_body(s, msg));
6021 if (!ret)
6022 goto missing_data_or_waiting;
6023 if (ret < 0)
6024 goto return_bad_res;
6025 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6026
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6027 /* other states, DONE...TUNNEL */
6028 /* for keep-alive we don't want to forward closes on DONE */
6029 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6030 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
6031 channel_dont_close(res);
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]6032
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]6033 http_resync_states(s);
6034 if (!(res->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6035 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
6036 if (res->flags & CF_SHUTW) {
6037 /* response errors are most likely due to the
6038 * client aborting the transfer. */
6039 goto aborted_xfer;
Willy Tarreau5523b322009-12-29 12:05:52 +0100[diff] [blame]6040 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6041 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6042 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]6043 goto return_bad_res;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6044 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6045 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6046 }
Willy Tarreauf51d03c2016-05-02 15:25:15 +0200[diff] [blame]6047 return 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6048
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6049 missing_data_or_waiting:
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6050 if (res->flags & CF_SHUTW)
6051 goto aborted_xfer;
6052
6053 /* stop waiting for data if the input is closed before the end. If the
6054 * client side was already closed, it means that the client has aborted,
6055 * so we don't want to count this as a server abort. Otherwise it's a
6056 * server abort.
6057 */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]6058 if (msg->msg_state < HTTP_MSG_ENDING && res->flags & CF_SHUTR) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6059 if ((s->req.flags & (CF_SHUTR|CF_SHUTW)) == (CF_SHUTR|CF_SHUTW))
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6060 goto aborted_xfer;
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6061 /* If we have some pending data, we continue the processing */
6062 if (!buffer_pending(res->buf)) {
6063 if (!(s->flags & SF_ERR_MASK))
6064 s->flags |= SF_ERR_SRVCL;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6065 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6066 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6067 HA_ATOMIC_ADD(&objt_server(s->target)->counters.srv_aborts, 1);
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6068 goto return_bad_res_stats_ok;
6069 }
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6070 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6071
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6072 /* we need to obey the req analyser, so if it leaves, we must too */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6073 if (!s->req.analysers)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]6074 goto return_bad_res;
6075
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6076 /* When TE: chunked is used, we need to get there again to parse
6077 * remaining chunks even if the server has closed, so we don't want to
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6078 * set CF_DONTCLOSE. Similarly, if keep-alive is set on the client side
6079 * or if there are filters registered on the stream, we don't want to
6080 * forward a close
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6081 */
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6082 if ((msg->flags & HTTP_MSGF_TE_CHNK) ||
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]6083 HAS_DATA_FILTERS(s, res) ||
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6084 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6085 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6086 channel_dont_close(res);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6087
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6088 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6089 * 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]6090 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]6091 * modes are already handled by the stream sock layer. We must not do
6092 * this in content-length mode because it could present the MSG_MORE
6093 * flag with the last block of forwarded data, which would cause an
6094 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6095 */
Christopher Faulet92d36382015-11-05 13:35:03 +0100[diff] [blame]6096 if ((msg->flags & HTTP_MSGF_TE_CHNK) || (msg->flags & HTTP_MSGF_COMPRESSING))
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6097 res->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6098
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6099 /* the stream handler will take care of timeouts and errors */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6100 return 0;
6101
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6102 return_bad_res: /* let's centralize all bad responses */
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6103 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6104 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6105 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6106
6107 return_bad_res_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6108 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6109 txn->rsp.msg_state = HTTP_MSG_ERROR;
Willy Tarreau148d0992010-01-10 10:21:21 +0100[diff] [blame]6110 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6111 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6112 res->analysers &= AN_RES_FLT_END;
6113 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]6114 if (objt_server(s->target))
6115 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6116
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6117 if (!(s->flags & SF_ERR_MASK))
6118 s->flags |= SF_ERR_PRXCOND;
6119 if (!(s->flags & SF_FINST_MASK))
6120 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6121 return 0;
6122
6123 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6124 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6125 txn->rsp.msg_state = HTTP_MSG_ERROR;
6126 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6127 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6128 res->analysers &= AN_RES_FLT_END;
6129 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]6130
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6131 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
6132 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6133 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6134 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6135
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6136 if (!(s->flags & SF_ERR_MASK))
6137 s->flags |= SF_ERR_CLICL;
6138 if (!(s->flags & SF_FINST_MASK))
6139 s->flags |= SF_FINST_D;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6140 return 0;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6141}
6142
6143
6144static inline int
6145http_msg_forward_body(struct stream *s, struct http_msg *msg)
6146{
6147 struct channel *chn = msg->chn;
6148 int ret;
6149
6150 /* Here we have the guarantee to be in HTTP_MSG_DATA or HTTP_MSG_ENDING state */
6151
6152 if (msg->msg_state == HTTP_MSG_ENDING)
6153 goto ending;
6154
6155 /* Neither content-length, nor transfer-encoding was found, so we must
6156 * read the body until the server connection is closed. In that case, we
6157 * eat data as they come. Of course, this happens for response only. */
6158 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6159 unsigned long long len = (chn->buf->i - msg->next);
6160 msg->chunk_len += len;
6161 msg->body_len += len;
6162 }
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6163 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6164 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6165 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6166 msg->next += ret;
6167 msg->chunk_len -= ret;
6168 if (msg->chunk_len) {
6169 /* input empty or output full */
6170 if (chn->buf->i > msg->next)
6171 chn->flags |= CF_WAKE_WRITE;
6172 goto missing_data_or_waiting;
6173 }
6174
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]6175 /* This check can only be true for a response. HTTP_MSGF_XFER_LEN is
6176 * always set for a request. */
6177 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6178 /* The server still sending data that should be filtered */
6179 if (!(chn->flags & CF_SHUTR) && HAS_DATA_FILTERS(s, chn))
6180 goto missing_data_or_waiting;
6181 }
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]6182
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6183 msg->msg_state = HTTP_MSG_ENDING;
6184
6185 ending:
6186 /* we may have some pending data starting at res->buf->p such as a last
6187 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6188 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6189 /* default_ret */ msg->next,
6190 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6191 b_adv(chn->buf, ret);
6192 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6193 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6194 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6195 if (msg->next)
6196 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6197
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6198 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
6199 /* default_ret */ 1,
6200 /* on_error */ goto error,
6201 /* on_wait */ goto waiting);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6202 msg->msg_state = HTTP_MSG_DONE;
6203 return 1;
6204
6205 missing_data_or_waiting:
6206 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6207 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6208 /* default_ret */ msg->next,
6209 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6210 b_adv(chn->buf, ret);
6211 msg->next -= ret;
6212 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6213 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6214 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6215 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6216 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6217 return 0;
6218 error:
6219 return -1;
6220}
6221
6222static inline int
6223http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg)
6224{
6225 struct channel *chn = msg->chn;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6226 unsigned int chunk;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6227 int ret;
6228
6229 /* Here we have the guarantee to be in one of the following state:
6230 * HTTP_MSG_DATA, HTTP_MSG_CHUNK_SIZE, HTTP_MSG_CHUNK_CRLF,
6231 * HTTP_MSG_TRAILERS or HTTP_MSG_ENDING. */
6232
6233 switch_states:
6234 switch (msg->msg_state) {
6235 case HTTP_MSG_DATA:
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6236 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6237 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6238 /* on_error */ goto error);
6239 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6240 msg->chunk_len -= ret;
6241 if (msg->chunk_len) {
6242 /* input empty or output full */
6243 if (chn->buf->i > msg->next)
6244 chn->flags |= CF_WAKE_WRITE;
6245 goto missing_data_or_waiting;
6246 }
6247
6248 /* nothing left to forward for this chunk*/
6249 msg->msg_state = HTTP_MSG_CHUNK_CRLF;
6250 /* fall through for HTTP_MSG_CHUNK_CRLF */
6251
6252 case HTTP_MSG_CHUNK_CRLF:
6253 /* we want the CRLF after the data */
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6254 ret = h1_skip_chunk_crlf(chn->buf, msg->next, chn->buf->i);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6255 if (ret == 0)
6256 goto missing_data_or_waiting;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6257 if (ret < 0) {
6258 msg->err_pos = chn->buf->i + ret;
6259 if (msg->err_pos < 0)
6260 msg->err_pos += chn->buf->size;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6261 goto chunk_parsing_error;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6262 }
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6263 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6264 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
6265 /* fall through for HTTP_MSG_CHUNK_SIZE */
6266
6267 case HTTP_MSG_CHUNK_SIZE:
6268 /* read the chunk size and assign it to ->chunk_len,
6269 * then set ->next to point to the body and switch to
6270 * DATA or TRAILERS state.
6271 */
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6272 ret = h1_parse_chunk_size(chn->buf, msg->next, chn->buf->i, &chunk);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6273 if (ret == 0)
6274 goto missing_data_or_waiting;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6275 if (ret < 0) {
6276 msg->err_pos = chn->buf->i + ret;
6277 if (msg->err_pos < 0)
6278 msg->err_pos += chn->buf->size;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6279 goto chunk_parsing_error;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6280 }
6281
6282 msg->sol = ret;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6283 msg->next += ret;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6284 msg->chunk_len = chunk;
6285 msg->body_len += chunk;
6286
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6287 if (msg->chunk_len) {
6288 msg->msg_state = HTTP_MSG_DATA;
6289 goto switch_states;
6290 }
6291 msg->msg_state = HTTP_MSG_TRAILERS;
6292 /* fall through for HTTP_MSG_TRAILERS */
6293
6294 case HTTP_MSG_TRAILERS:
6295 ret = http_forward_trailers(msg);
6296 if (ret < 0)
6297 goto chunk_parsing_error;
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6298 FLT_STRM_DATA_CB(s, chn, flt_http_chunk_trailers(s, msg),
6299 /* default_ret */ 1,
6300 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6301 msg->next += msg->sol;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6302 if (!ret)
6303 goto missing_data_or_waiting;
6304 break;
6305
6306 case HTTP_MSG_ENDING:
6307 goto ending;
6308
6309 default:
6310 /* This should no happen in this function */
6311 goto error;
6312 }
6313
6314 msg->msg_state = HTTP_MSG_ENDING;
6315 ending:
6316 /* we may have some pending data starting at res->buf->p such as a last
6317 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6318 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]6319 /* default_ret */ msg->next,
6320 /* on_error */ goto error);
6321 b_adv(chn->buf, ret);
6322 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6323 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6324 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6325 if (msg->next)
6326 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6327
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6328 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6329 /* default_ret */ 1,
6330 /* on_error */ goto error,
6331 /* on_wait */ goto waiting);
6332 msg->msg_state = HTTP_MSG_DONE;
6333 return 1;
6334
6335 missing_data_or_waiting:
6336 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6337 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]6338 /* default_ret */ msg->next,
6339 /* on_error */ goto error);
6340 b_adv(chn->buf, ret);
6341 msg->next -= ret;
6342 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6343 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6344 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6345 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6346 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6347 return 0;
6348
6349 chunk_parsing_error:
6350 if (msg->err_pos >= 0) {
6351 if (chn->flags & CF_ISRESP)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6352 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg,
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6353 msg->msg_state, strm_fe(s));
6354 else
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6355 http_capture_bad_message(strm_fe(s), &strm_fe(s)->invalid_req, s,
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6356 msg, msg->msg_state, s->be);
6357 }
6358 error:
6359 return -1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6360}
6361
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6362
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6363/* Iterate the same filter through all request headers.
6364 * Returns 1 if this filter can be stopped upon return, otherwise 0.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6365 * Since it can manage the switch to another backend, it updates the per-proxy
6366 * DENY stats.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6367 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6368int 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]6369{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6370 char *cur_ptr, *cur_end, *cur_next;
6371 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6372 struct http_txn *txn = s->txn;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6373 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6374 int delta;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100[diff] [blame]6375
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6376 last_hdr = 0;
6377
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6378 cur_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6379 old_idx = 0;
6380
6381 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6382 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6383 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6384 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6385 (exp->action == ACT_ALLOW ||
6386 exp->action == ACT_DENY ||
6387 exp->action == ACT_TARPIT))
6388 return 0;
6389
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6390 cur_idx = txn->hdr_idx.v[old_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6391 if (!cur_idx)
6392 break;
6393
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6394 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6395 cur_ptr = cur_next;
6396 cur_end = cur_ptr + cur_hdr->len;
6397 cur_next = cur_end + cur_hdr->cr + 1;
6398
6399 /* Now we have one header between cur_ptr and cur_end,
6400 * and the next header starts at cur_next.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6401 */
6402
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]6403 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]6404 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6405 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6406 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6407 last_hdr = 1;
6408 break;
6409
6410 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6411 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6412 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6413 break;
6414
6415 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6416 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6417 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6418 break;
6419
6420 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6421 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
6422 if (trash.len < 0)
6423 return -1;
6424
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6425 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6426 /* FIXME: if the user adds a newline in the replacement, the
6427 * index will not be recalculated for now, and the new line
6428 * will not be counted as a new header.
6429 */
6430
6431 cur_end += delta;
6432 cur_next += delta;
6433 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6434 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6435 break;
6436
6437 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6438 delta = buffer_replace2(req->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6439 cur_next += delta;
6440
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6441 http_msg_move_end(&txn->req, delta);
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6442 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
6443 txn->hdr_idx.used--;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6444 cur_hdr->len = 0;
6445 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]6446 cur_idx = old_idx;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6447 break;
6448
6449 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6450 }
6451
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6452 /* keep the link from this header to next one in case of later
6453 * removal of next header.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6454 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6455 old_idx = cur_idx;
6456 }
6457 return 0;
6458}
6459
6460
6461/* Apply the filter to the request line.
6462 * Returns 0 if nothing has been done, 1 if the filter has been applied,
6463 * or -1 if a replacement resulted in an invalid request line.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6464 * Since it can manage the switch to another backend, it updates the per-proxy
6465 * DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6466 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6467int 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]6468{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6469 char *cur_ptr, *cur_end;
6470 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6471 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6472 int delta;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6473
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6474 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6475 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6476 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6477 (exp->action == ACT_ALLOW ||
6478 exp->action == ACT_DENY ||
6479 exp->action == ACT_TARPIT))
6480 return 0;
6481 else if (exp->action == ACT_REMOVE)
6482 return 0;
6483
6484 done = 0;
6485
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6486 cur_ptr = req->buf->p;
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6487 cur_end = cur_ptr + txn->req.sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6488
6489 /* Now we have the request line between cur_ptr and cur_end */
6490
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]6491 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]6492 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6493 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6494 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6495 done = 1;
6496 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6497
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6498 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6499 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6500 done = 1;
6501 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6502
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6503 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6504 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6505 done = 1;
6506 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6507
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6508 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6509 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
6510 if (trash.len < 0)
6511 return -1;
6512
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6513 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6514 /* FIXME: if the user adds a newline in the replacement, the
6515 * index will not be recalculated for now, and the new line
6516 * will not be counted as a new header.
6517 */
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6518
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6519 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6520 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]6521 cur_end = (char *)http_parse_reqline(&txn->req,
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6522 HTTP_MSG_RQMETH,
6523 cur_ptr, cur_end + 1,
6524 NULL, NULL);
6525 if (unlikely(!cur_end))
6526 return -1;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6527
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6528 /* we have a full request and we know that we have either a CR
6529 * or an LF at <ptr>.
6530 */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6531 txn->meth = find_http_meth(cur_ptr, txn->req.sl.rq.m_l);
6532 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]6533 /* there is no point trying this regex on headers */
6534 return 1;
6535 }
6536 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6537 return done;
6538}
Willy Tarreau97de6242006-12-27 17:18:38 +0100[diff] [blame]6539
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6540
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6541
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6542/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6543 * 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]6544 * 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]6545 * unparsable request. Since it can manage the switch to another backend, it
6546 * updates the per-proxy DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6547 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6548int apply_filters_to_request(struct stream *s, struct channel *req, struct proxy *px)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6549{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6550 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6551 struct http_txn *txn = s->txn;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6552 struct hdr_exp *exp;
6553
6554 for (exp = px->req_exp; exp; exp = exp->next) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6555 int ret;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6556
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6557 /*
6558 * The interleaving of transformations and verdicts
6559 * makes it difficult to decide to continue or stop
6560 * the evaluation.
6561 */
6562
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6563 if (txn->flags & (TX_CLDENY|TX_CLTARPIT))
6564 break;
6565
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6566 if ((txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6567 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6568 exp->action == ACT_TARPIT || exp->action == ACT_PASS))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6569 continue;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6570
6571 /* if this filter had a condition, evaluate it now and skip to
6572 * next filter if the condition does not match.
6573 */
6574 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6575 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]6576 ret = acl_pass(ret);
6577 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
6578 ret = !ret;
6579
6580 if (!ret)
6581 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6582 }
6583
6584 /* Apply the filter to the request line. */
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6585 ret = apply_filter_to_req_line(s, req, exp);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6586 if (unlikely(ret < 0))
6587 return -1;
6588
6589 if (likely(ret == 0)) {
6590 /* The filter did not match the request, it can be
6591 * iterated through all headers.
6592 */
Willy Tarreau34d4c3c2015-01-30 20:58:58 +0100[diff] [blame]6593 if (unlikely(apply_filter_to_req_headers(s, req, exp) < 0))
6594 return -1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6595 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6596 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6597 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6598}
6599
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6600
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6601/* Find the end of a cookie value contained between <s> and <e>. It works the
6602 * same way as with headers above except that the semi-colon also ends a token.
6603 * See RFC2965 for more information. Note that it requires a valid header to
6604 * return a valid result.
6605 */
6606char *find_cookie_value_end(char *s, const char *e)
6607{
6608 int quoted, qdpair;
6609
6610 quoted = qdpair = 0;
6611 for (; s < e; s++) {
6612 if (qdpair) qdpair = 0;
6613 else if (quoted) {
6614 if (*s == '\\') qdpair = 1;
6615 else if (*s == '"') quoted = 0;
6616 }
6617 else if (*s == '"') quoted = 1;
6618 else if (*s == ',' || *s == ';') return s;
6619 }
6620 return s;
6621}
6622
6623/* Delete a value in a header between delimiters <from> and <next> in buffer
6624 * <buf>. The number of characters displaced is returned, and the pointer to
6625 * the first delimiter is updated if required. The function tries as much as
6626 * possible to respect the following principles :
6627 * - replace <from> delimiter by the <next> one unless <from> points to a
6628 * colon, in which case <next> is simply removed
6629 * - set exactly one space character after the new first delimiter, unless
6630 * there are not enough characters in the block being moved to do so.
6631 * - remove unneeded spaces before the previous delimiter and after the new
6632 * one.
6633 *
6634 * It is the caller's responsibility to ensure that :
6635 * - <from> points to a valid delimiter or the colon ;
6636 * - <next> points to a valid delimiter or the final CR/LF ;
6637 * - there are non-space chars before <from> ;
6638 * - there is a CR/LF at or after <next>.
6639 */
Willy Tarreauaf819352012-08-27 22:08:00 +0200[diff] [blame]6640int del_hdr_value(struct buffer *buf, char **from, char *next)
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6641{
6642 char *prev = *from;
6643
6644 if (*prev == ':') {
6645 /* We're removing the first value, preserve the colon and add a
6646 * space if possible.
6647 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6648 if (!HTTP_IS_CRLF(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6649 next++;
6650 prev++;
6651 if (prev < next)
6652 *prev++ = ' ';
6653
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6654 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6655 next++;
6656 } else {
6657 /* Remove useless spaces before the old delimiter. */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6658 while (HTTP_IS_SPHT(*(prev-1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6659 prev--;
6660 *from = prev;
6661
6662 /* copy the delimiter and if possible a space if we're
6663 * not at the end of the line.
6664 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6665 if (!HTTP_IS_CRLF(*next)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6666 *prev++ = *next++;
6667 if (prev + 1 < next)
6668 *prev++ = ' ';
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6669 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6670 next++;
6671 }
6672 }
6673 return buffer_replace2(buf, prev, next, NULL, 0);
6674}
6675
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6676/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]6677 * Manage client-side cookie. It can impact performance by about 2% so it is
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6678 * desirable to call it only when needed. This code is quite complex because
6679 * of the multiple very crappy and ambiguous syntaxes we have to support. it
6680 * highly recommended not to touch this part without a good reason !
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6681 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6682void manage_client_side_cookies(struct stream *s, struct channel *req)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6683{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6684 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6685 struct session *sess = s->sess;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6686 int preserve_hdr;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6687 int cur_idx, old_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6688 char *hdr_beg, *hdr_end, *hdr_next, *del_from;
6689 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6690
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6691 /* Iterate through the headers, we start with the start line. */
Willy Tarreau83969f42007-01-22 08:55:47 +0100[diff] [blame]6692 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6693 hdr_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6694
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6695 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6696 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6697 int val;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6698
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6699 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6700 hdr_beg = hdr_next;
6701 hdr_end = hdr_beg + cur_hdr->len;
6702 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6703
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6704 /* We have one full header between hdr_beg and hdr_end, and the
6705 * next header starts at hdr_next. We're only interested in
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6706 * "Cookie:" headers.
6707 */
6708
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6709 val = http_header_match2(hdr_beg, hdr_end, "Cookie", 6);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6710 if (!val) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6711 old_idx = cur_idx;
6712 continue;
6713 }
6714
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6715 del_from = NULL; /* nothing to be deleted */
6716 preserve_hdr = 0; /* assume we may kill the whole header */
6717
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6718 /* Now look for cookies. Conforming to RFC2109, we have to support
6719 * attributes whose name begin with a '$', and associate them with
6720 * the right cookie, if we want to delete this cookie.
6721 * So there are 3 cases for each cookie read :
6722 * 1) it's a special attribute, beginning with a '$' : ignore it.
6723 * 2) it's a server id cookie that we *MAY* want to delete : save
6724 * some pointers on it (last semi-colon, beginning of cookie...)
6725 * 3) it's an application cookie : we *MAY* have to delete a previous
6726 * "special" cookie.
6727 * At the end of loop, if a "special" cookie remains, we may have to
6728 * remove it. If no application cookie persists in the header, we
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6729 * *MUST* delete it.
6730 *
6731 * Note: RFC2965 is unclear about the processing of spaces around
6732 * the equal sign in the ATTR=VALUE form. A careful inspection of
6733 * the RFC explicitly allows spaces before it, and not within the
6734 * tokens (attrs or values). An inspection of RFC2109 allows that
6735 * too but section 10.1.3 lets one think that spaces may be allowed
6736 * after the equal sign too, resulting in some (rare) buggy
6737 * implementations trying to do that. So let's do what servers do.
6738 * Latest ietf draft forbids spaces all around. Also, earlier RFCs
6739 * allowed quoted strings in values, with any possible character
6740 * after a backslash, including control chars and delimitors, which
6741 * causes parsing to become ambiguous. Browsers also allow spaces
6742 * within values even without quotes.
6743 *
6744 * We have to keep multiple pointers in order to support cookie
6745 * removal at the beginning, middle or end of header without
6746 * corrupting the header. All of these headers are valid :
6747 *
6748 * Cookie:NAME1=VALUE1;NAME2=VALUE2;NAME3=VALUE3\r\n
6749 * Cookie:NAME1=VALUE1;NAME2_ONLY ;NAME3=VALUE3\r\n
6750 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
6751 * | | | | | | | | |
6752 * | | | | | | | | hdr_end <--+
6753 * | | | | | | | +--> next
6754 * | | | | | | +----> val_end
6755 * | | | | | +-----------> val_beg
6756 * | | | | +--------------> equal
6757 * | | | +----------------> att_end
6758 * | | +---------------------> att_beg
6759 * | +--------------------------> prev
6760 * +--------------------------------> hdr_beg
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6761 */
6762
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6763 for (prev = hdr_beg + 6; prev < hdr_end; prev = next) {
6764 /* Iterate through all cookies on this line */
6765
6766 /* find att_beg */
6767 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6768 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6769 att_beg++;
6770
6771 /* find att_end : this is the first character after the last non
6772 * space before the equal. It may be equal to hdr_end.
6773 */
6774 equal = att_end = att_beg;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6775
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6776 while (equal < hdr_end) {
6777 if (*equal == '=' || *equal == ',' || *equal == ';')
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6778 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6779 if (HTTP_IS_SPHT(*equal++))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6780 continue;
6781 att_end = equal;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6782 }
6783
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6784 /* here, <equal> points to '=', a delimitor or the end. <att_end>
6785 * is between <att_beg> and <equal>, both may be identical.
6786 */
6787
6788 /* look for end of cookie if there is an equal sign */
6789 if (equal < hdr_end && *equal == '=') {
6790 /* look for the beginning of the value */
6791 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6792 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6793 val_beg++;
6794
6795 /* find the end of the value, respecting quotes */
6796 next = find_cookie_value_end(val_beg, hdr_end);
6797
6798 /* make val_end point to the first white space or delimitor after the value */
6799 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6800 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6801 val_end--;
6802 } else {
6803 val_beg = val_end = next = equal;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6804 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6805
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6806 /* We have nothing to do with attributes beginning with '$'. However,
6807 * they will automatically be removed if a header before them is removed,
6808 * since they're supposed to be linked together.
6809 */
6810 if (*att_beg == '$')
6811 continue;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6812
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6813 /* Ignore cookies with no equal sign */
6814 if (equal == next) {
6815 /* This is not our cookie, so we must preserve it. But if we already
6816 * scheduled another cookie for removal, we cannot remove the
6817 * complete header, but we can remove the previous block itself.
6818 */
6819 preserve_hdr = 1;
6820 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6821 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6822 val_end += delta;
6823 next += delta;
6824 hdr_end += delta;
6825 hdr_next += delta;
6826 cur_hdr->len += delta;
6827 http_msg_move_end(&txn->req, delta);
6828 prev = del_from;
6829 del_from = NULL;
6830 }
6831 continue;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6832 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6833
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6834 /* if there are spaces around the equal sign, we need to
6835 * strip them otherwise we'll get trouble for cookie captures,
6836 * or even for rewrites. Since this happens extremely rarely,
6837 * it does not hurt performance.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6838 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6839 if (unlikely(att_end != equal || val_beg > equal + 1)) {
6840 int stripped_before = 0;
6841 int stripped_after = 0;
6842
6843 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6844 stripped_before = buffer_replace2(req->buf, att_end, equal, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6845 equal += stripped_before;
6846 val_beg += stripped_before;
6847 }
6848
6849 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6850 stripped_after = buffer_replace2(req->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6851 val_beg += stripped_after;
6852 stripped_before += stripped_after;
6853 }
6854
6855 val_end += stripped_before;
6856 next += stripped_before;
6857 hdr_end += stripped_before;
6858 hdr_next += stripped_before;
6859 cur_hdr->len += stripped_before;
6860 http_msg_move_end(&txn->req, stripped_before);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6861 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6862 /* now everything is as on the diagram above */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6863
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6864 /* First, let's see if we want to capture this cookie. We check
6865 * that we don't already have a client side cookie, because we
6866 * can only capture one. Also as an optimisation, we ignore
6867 * cookies shorter than the declared name.
6868 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6869 if (sess->fe->capture_name != NULL && txn->cli_cookie == NULL &&
6870 (val_end - att_beg >= sess->fe->capture_namelen) &&
6871 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6872 int log_len = val_end - att_beg;
6873
6874 if ((txn->cli_cookie = pool_alloc2(pool2_capture)) == NULL) {
6875 Alert("HTTP logging : out of memory.\n");
6876 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6877 if (log_len > sess->fe->capture_len)
6878 log_len = sess->fe->capture_len;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6879 memcpy(txn->cli_cookie, att_beg, log_len);
6880 txn->cli_cookie[log_len] = 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6881 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6882 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6883
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6884 /* Persistence cookies in passive, rewrite or insert mode have the
6885 * following form :
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6886 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6887 * Cookie: NAME=SRV[|<lastseen>[|<firstseen>]]
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6888 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6889 * For cookies in prefix mode, the form is :
6890 *
6891 * Cookie: NAME=SRV~VALUE
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6892 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6893 if ((att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
6894 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
6895 struct server *srv = s->be->srv;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6896 char *delim;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6897
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6898 /* if we're in cookie prefix mode, we'll search the delimitor so that we
6899 * have the server ID between val_beg and delim, and the original cookie between
6900 * delim+1 and val_end. Otherwise, delim==val_end :
6901 *
6902 * Cookie: NAME=SRV; # in all but prefix modes
6903 * Cookie: NAME=SRV~OPAQUE ; # in prefix mode
6904 * | || || | |+-> next
6905 * | || || | +--> val_end
6906 * | || || +---------> delim
6907 * | || |+------------> val_beg
6908 * | || +-------------> att_end = equal
6909 * | |+-----------------> att_beg
6910 * | +------------------> prev
6911 * +-------------------------> hdr_beg
6912 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6913
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6914 if (s->be->ck_opts & PR_CK_PFX) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6915 for (delim = val_beg; delim < val_end; delim++)
6916 if (*delim == COOKIE_DELIM)
6917 break;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6918 } else {
6919 char *vbar1;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6920 delim = val_end;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6921 /* Now check if the cookie contains a date field, which would
6922 * appear after a vertical bar ('|') just after the server name
6923 * and before the delimiter.
6924 */
6925 vbar1 = memchr(val_beg, COOKIE_DELIM_DATE, val_end - val_beg);
6926 if (vbar1) {
6927 /* OK, so left of the bar is the server's cookie and
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6928 * right is the last seen date. It is a base64 encoded
6929 * 30-bit value representing the UNIX date since the
6930 * epoch in 4-second quantities.
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6931 */
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6932 int val;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6933 delim = vbar1++;
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6934 if (val_end - vbar1 >= 5) {
6935 val = b64tos30(vbar1);
6936 if (val > 0)
6937 txn->cookie_last_date = val << 2;
6938 }
6939 /* look for a second vertical bar */
6940 vbar1 = memchr(vbar1, COOKIE_DELIM_DATE, val_end - vbar1);
6941 if (vbar1 && (val_end - vbar1 > 5)) {
6942 val = b64tos30(vbar1 + 1);
6943 if (val > 0)
6944 txn->cookie_first_date = val << 2;
6945 }
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6946 }
6947 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6948
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6949 /* if the cookie has an expiration date and the proxy wants to check
6950 * it, then we do that now. We first check if the cookie is too old,
6951 * then only if it has expired. We detect strict overflow because the
6952 * time resolution here is not great (4 seconds). Cookies with dates
6953 * in the future are ignored if their offset is beyond one day. This
6954 * allows an admin to fix timezone issues without expiring everyone
6955 * and at the same time avoids keeping unwanted side effects for too
6956 * long.
6957 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6958 if (txn->cookie_first_date && s->be->cookie_maxlife &&
6959 (((signed)(date.tv_sec - txn->cookie_first_date) > (signed)s->be->cookie_maxlife) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6960 ((signed)(txn->cookie_first_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6961 txn->flags &= ~TX_CK_MASK;
6962 txn->flags |= TX_CK_OLD;
6963 delim = val_beg; // let's pretend we have not found the cookie
6964 txn->cookie_first_date = 0;
6965 txn->cookie_last_date = 0;
6966 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6967 else if (txn->cookie_last_date && s->be->cookie_maxidle &&
6968 (((signed)(date.tv_sec - txn->cookie_last_date) > (signed)s->be->cookie_maxidle) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6969 ((signed)(txn->cookie_last_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6970 txn->flags &= ~TX_CK_MASK;
6971 txn->flags |= TX_CK_EXPIRED;
6972 delim = val_beg; // let's pretend we have not found the cookie
6973 txn->cookie_first_date = 0;
6974 txn->cookie_last_date = 0;
6975 }
6976
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6977 /* Here, we'll look for the first running server which supports the cookie.
6978 * This allows to share a same cookie between several servers, for example
6979 * to dedicate backup servers to specific servers only.
6980 * However, to prevent clients from sticking to cookie-less backup server
6981 * when they have incidentely learned an empty cookie, we simply ignore
6982 * empty cookies and mark them as invalid.
6983 * The same behaviour is applied when persistence must be ignored.
6984 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6985 if ((delim == val_beg) || (s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6986 srv = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6987
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6988 while (srv) {
6989 if (srv->cookie && (srv->cklen == delim - val_beg) &&
6990 !memcmp(val_beg, srv->cookie, delim - val_beg)) {
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]6991 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6992 (s->be->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6993 (s->flags & SF_FORCE_PRST)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6994 /* we found the server and we can use it */
6995 txn->flags &= ~TX_CK_MASK;
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]6996 txn->flags |= (srv->cur_state != SRV_ST_STOPPED) ? TX_CK_VALID : TX_CK_DOWN;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6997 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6998 s->target = &srv->obj_type;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6999 break;
7000 } else {
7001 /* we found a server, but it's down,
7002 * mark it as such and go on in case
7003 * another one is available.
7004 */
7005 txn->flags &= ~TX_CK_MASK;
7006 txn->flags |= TX_CK_DOWN;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7007 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7008 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7009 srv = srv->next;
7010 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7011
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7012 if (!srv && !(txn->flags & (TX_CK_DOWN|TX_CK_EXPIRED|TX_CK_OLD))) {
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7013 /* no server matched this cookie or we deliberately skipped it */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7014 txn->flags &= ~TX_CK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7015 if ((s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7016 txn->flags |= TX_CK_UNUSED;
7017 else
7018 txn->flags |= TX_CK_INVALID;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7019 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7020
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7021 /* depending on the cookie mode, we may have to either :
7022 * - delete the complete cookie if we're in insert+indirect mode, so that
7023 * the server never sees it ;
7024 * - remove the server id from the cookie value, and tag the cookie as an
7025 * application cookie so that it does not get accidentely removed later,
7026 * if we're in cookie prefix mode
7027 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7028 if ((s->be->ck_opts & PR_CK_PFX) && (delim != val_end)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7029 int delta; /* negative */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7030
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7031 delta = buffer_replace2(req->buf, val_beg, delim + 1, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7032 val_end += delta;
7033 next += delta;
7034 hdr_end += delta;
7035 hdr_next += delta;
7036 cur_hdr->len += delta;
7037 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7038
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7039 del_from = NULL;
7040 preserve_hdr = 1; /* we want to keep this cookie */
7041 }
7042 else if (del_from == NULL &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7043 (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]7044 del_from = prev;
7045 }
7046 } else {
7047 /* This is not our cookie, so we must preserve it. But if we already
7048 * scheduled another cookie for removal, we cannot remove the
7049 * complete header, but we can remove the previous block itself.
7050 */
7051 preserve_hdr = 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7052
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7053 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7054 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaub8105542010-11-24 18:31:28 +0100[diff] [blame]7055 if (att_beg >= del_from)
7056 att_beg += delta;
7057 if (att_end >= del_from)
7058 att_end += delta;
7059 val_beg += delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7060 val_end += delta;
7061 next += delta;
7062 hdr_end += delta;
7063 hdr_next += delta;
7064 cur_hdr->len += delta;
7065 http_msg_move_end(&txn->req, delta);
7066 prev = del_from;
7067 del_from = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7068 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7069 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7070
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7071 /* continue with next cookie on this header line */
7072 att_beg = next;
7073 } /* for each cookie */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7074
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7075 /* There are no more cookies on this line.
7076 * We may still have one (or several) marked for deletion at the
7077 * end of the line. We must do this now in two ways :
7078 * - if some cookies must be preserved, we only delete from the
7079 * mark to the end of line ;
7080 * - if nothing needs to be preserved, simply delete the whole header
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7081 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7082 if (del_from) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7083 int delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7084 if (preserve_hdr) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7085 delta = del_hdr_value(req->buf, &del_from, hdr_end);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7086 hdr_end = del_from;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7087 cur_hdr->len += delta;
7088 } else {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7089 delta = buffer_replace2(req->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7090
7091 /* FIXME: this should be a separate function */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7092 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7093 txn->hdr_idx.used--;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7094 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7095 cur_idx = old_idx;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7096 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7097 hdr_next += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7098 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7099 }
7100
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7101 /* check next header */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7102 old_idx = cur_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7103 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7104}
7105
7106
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7107/* Iterate the same filter through all response headers contained in <rtr>.
7108 * Returns 1 if this filter can be stopped upon return, otherwise 0.
7109 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7110int 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]7111{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7112 char *cur_ptr, *cur_end, *cur_next;
7113 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7114 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7115 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7116 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7117
7118 last_hdr = 0;
7119
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7120 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7121 old_idx = 0;
7122
7123 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7124 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7125 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7126 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7127 (exp->action == ACT_ALLOW ||
7128 exp->action == ACT_DENY))
7129 return 0;
7130
7131 cur_idx = txn->hdr_idx.v[old_idx].next;
7132 if (!cur_idx)
7133 break;
7134
7135 cur_hdr = &txn->hdr_idx.v[cur_idx];
7136 cur_ptr = cur_next;
7137 cur_end = cur_ptr + cur_hdr->len;
7138 cur_next = cur_end + cur_hdr->cr + 1;
7139
7140 /* Now we have one header between cur_ptr and cur_end,
7141 * and the next header starts at cur_next.
7142 */
7143
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7144 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]7145 switch (exp->action) {
7146 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7147 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7148 last_hdr = 1;
7149 break;
7150
7151 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7152 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7153 last_hdr = 1;
7154 break;
7155
7156 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7157 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7158 if (trash.len < 0)
7159 return -1;
7160
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7161 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7162 /* FIXME: if the user adds a newline in the replacement, the
7163 * index will not be recalculated for now, and the new line
7164 * will not be counted as a new header.
7165 */
7166
7167 cur_end += delta;
7168 cur_next += delta;
7169 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7170 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7171 break;
7172
7173 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7174 delta = buffer_replace2(rtr->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7175 cur_next += delta;
7176
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7177 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7178 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7179 txn->hdr_idx.used--;
7180 cur_hdr->len = 0;
7181 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7182 cur_idx = old_idx;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7183 break;
7184
7185 }
7186 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7187
7188 /* keep the link from this header to next one in case of later
7189 * removal of next header.
7190 */
7191 old_idx = cur_idx;
7192 }
7193 return 0;
7194}
7195
7196
7197/* Apply the filter to the status line in the response buffer <rtr>.
7198 * Returns 0 if nothing has been done, 1 if the filter has been applied,
7199 * or -1 if a replacement resulted in an invalid status line.
7200 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7201int 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]7202{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7203 char *cur_ptr, *cur_end;
7204 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7205 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7206 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7207
7208
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7209 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7210 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7211 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7212 (exp->action == ACT_ALLOW ||
7213 exp->action == ACT_DENY))
7214 return 0;
7215 else if (exp->action == ACT_REMOVE)
7216 return 0;
7217
7218 done = 0;
7219
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7220 cur_ptr = rtr->buf->p;
Willy Tarreau1ba0e5f2010-06-07 13:57:32 +0200[diff] [blame]7221 cur_end = cur_ptr + txn->rsp.sl.st.l;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7222
7223 /* Now we have the status line between cur_ptr and cur_end */
7224
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7225 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]7226 switch (exp->action) {
7227 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7228 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7229 done = 1;
7230 break;
7231
7232 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7233 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7234 done = 1;
7235 break;
7236
7237 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7238 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7239 if (trash.len < 0)
7240 return -1;
7241
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7242 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7243 /* FIXME: if the user adds a newline in the replacement, the
7244 * index will not be recalculated for now, and the new line
7245 * will not be counted as a new header.
7246 */
7247
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7248 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7249 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7250 cur_end = (char *)http_parse_stsline(&txn->rsp,
Willy Tarreau02785762007-04-03 14:45:44 +0200[diff] [blame]7251 HTTP_MSG_RPVER,
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7252 cur_ptr, cur_end + 1,
7253 NULL, NULL);
7254 if (unlikely(!cur_end))
7255 return -1;
7256
7257 /* we have a full respnse and we know that we have either a CR
7258 * or an LF at <ptr>.
7259 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7260 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]7261 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]7262 /* there is no point trying this regex on headers */
7263 return 1;
7264 }
7265 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7266 return done;
7267}
7268
7269
7270
7271/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7272 * 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]7273 * Returns 0 if everything is alright, or -1 in case a replacement lead to an
7274 * unparsable response.
7275 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7276int apply_filters_to_response(struct stream *s, struct channel *rtr, struct proxy *px)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7277{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7278 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7279 struct http_txn *txn = s->txn;
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7280 struct hdr_exp *exp;
7281
7282 for (exp = px->rsp_exp; exp; exp = exp->next) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7283 int ret;
7284
7285 /*
7286 * The interleaving of transformations and verdicts
7287 * makes it difficult to decide to continue or stop
7288 * the evaluation.
7289 */
7290
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7291 if (txn->flags & TX_SVDENY)
7292 break;
7293
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7294 if ((txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7295 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
7296 exp->action == ACT_PASS)) {
7297 exp = exp->next;
7298 continue;
7299 }
7300
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7301 /* if this filter had a condition, evaluate it now and skip to
7302 * next filter if the condition does not match.
7303 */
7304 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7305 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]7306 ret = acl_pass(ret);
7307 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
7308 ret = !ret;
7309 if (!ret)
7310 continue;
7311 }
7312
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7313 /* Apply the filter to the status line. */
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7314 ret = apply_filter_to_sts_line(s, rtr, exp);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7315 if (unlikely(ret < 0))
7316 return -1;
7317
7318 if (likely(ret == 0)) {
7319 /* The filter did not match the response, it can be
7320 * iterated through all headers.
7321 */
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7322 if (unlikely(apply_filter_to_resp_headers(s, rtr, exp) < 0))
7323 return -1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7324 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7325 }
7326 return 0;
7327}
7328
7329
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7330/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]7331 * Manage server-side cookies. It can impact performance by about 2% so it is
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7332 * desirable to call it only when needed. This function is also used when we
7333 * just need to know if there is a cookie (eg: for check-cache).
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7334 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7335void manage_server_side_cookies(struct stream *s, struct channel *res)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7336{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7337 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7338 struct session *sess = s->sess;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7339 struct server *srv;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7340 int is_cookie2;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7341 int cur_idx, old_idx, delta;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7342 char *hdr_beg, *hdr_end, *hdr_next;
7343 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7344
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7345 /* Iterate through the headers.
7346 * we start with the start line.
7347 */
7348 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7349 hdr_next = res->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7350
7351 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
7352 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7353 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7354
7355 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7356 hdr_beg = hdr_next;
7357 hdr_end = hdr_beg + cur_hdr->len;
7358 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7359
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7360 /* We have one full header between hdr_beg and hdr_end, and the
7361 * next header starts at hdr_next. We're only interested in
7362 * "Set-Cookie" and "Set-Cookie2" headers.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7363 */
7364
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7365 is_cookie2 = 0;
7366 prev = hdr_beg + 10;
7367 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie", 10);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7368 if (!val) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7369 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie2", 11);
7370 if (!val) {
7371 old_idx = cur_idx;
7372 continue;
7373 }
7374 is_cookie2 = 1;
7375 prev = hdr_beg + 11;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7376 }
7377
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7378 /* OK, right now we know we have a Set-Cookie* at hdr_beg, and
7379 * <prev> points to the colon.
7380 */
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7381 txn->flags |= TX_SCK_PRESENT;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7382
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7383 /* Maybe we only wanted to see if there was a Set-Cookie (eg:
7384 * check-cache is enabled) and we are not interested in checking
7385 * them. Warning, the cookie capture is declared in the frontend.
Willy Tarreaufd39dda2008-10-17 12:01:58 +0200[diff] [blame]7386 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]7387 if (s->be->cookie_name == NULL && sess->fe->capture_name == NULL)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7388 return;
7389
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7390 /* OK so now we know we have to process this response cookie.
7391 * The format of the Set-Cookie header is slightly different
7392 * from the format of the Cookie header in that it does not
7393 * support the comma as a cookie delimiter (thus the header
7394 * cannot be folded) because the Expires attribute described in
7395 * the original Netscape's spec may contain an unquoted date
7396 * with a comma inside. We have to live with this because
7397 * many browsers don't support Max-Age and some browsers don't
7398 * support quoted strings. However the Set-Cookie2 header is
7399 * clean.
7400 *
7401 * We have to keep multiple pointers in order to support cookie
7402 * removal at the beginning, middle or end of header without
7403 * corrupting the header (in case of set-cookie2). A special
7404 * pointer, <scav> points to the beginning of the set-cookie-av
7405 * fields after the first semi-colon. The <next> pointer points
7406 * either to the end of line (set-cookie) or next unquoted comma
7407 * (set-cookie2). All of these headers are valid :
7408 *
7409 * Set-Cookie: NAME1 = VALUE 1 ; Secure; Path="/"\r\n
7410 * Set-Cookie:NAME=VALUE; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7411 * Set-Cookie: NAME = VALUE ; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7412 * Set-Cookie2: NAME1 = VALUE 1 ; Max-Age=0, NAME2=VALUE2; Discard\r\n
7413 * | | | | | | | | | |
7414 * | | | | | | | | +-> next hdr_end <--+
7415 * | | | | | | | +------------> scav
7416 * | | | | | | +--------------> val_end
7417 * | | | | | +--------------------> val_beg
7418 * | | | | +----------------------> equal
7419 * | | | +------------------------> att_end
7420 * | | +----------------------------> att_beg
7421 * | +------------------------------> prev
7422 * +-----------------------------------------> hdr_beg
7423 */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7424
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7425 for (; prev < hdr_end; prev = next) {
7426 /* Iterate through all cookies on this line */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7427
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7428 /* find att_beg */
7429 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7430 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7431 att_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7432
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7433 /* find att_end : this is the first character after the last non
7434 * space before the equal. It may be equal to hdr_end.
7435 */
7436 equal = att_end = att_beg;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7437
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7438 while (equal < hdr_end) {
7439 if (*equal == '=' || *equal == ';' || (is_cookie2 && *equal == ','))
7440 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7441 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7442 continue;
7443 att_end = equal;
7444 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7445
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7446 /* here, <equal> points to '=', a delimitor or the end. <att_end>
7447 * is between <att_beg> and <equal>, both may be identical.
7448 */
7449
7450 /* look for end of cookie if there is an equal sign */
7451 if (equal < hdr_end && *equal == '=') {
7452 /* look for the beginning of the value */
7453 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7454 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7455 val_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7456
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7457 /* find the end of the value, respecting quotes */
7458 next = find_cookie_value_end(val_beg, hdr_end);
7459
7460 /* make val_end point to the first white space or delimitor after the value */
7461 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7462 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7463 val_end--;
7464 } else {
7465 /* <equal> points to next comma, semi-colon or EOL */
7466 val_beg = val_end = next = equal;
7467 }
7468
7469 if (next < hdr_end) {
7470 /* Set-Cookie2 supports multiple cookies, and <next> points to
7471 * a colon or semi-colon before the end. So skip all attr-value
7472 * pairs and look for the next comma. For Set-Cookie, since
7473 * commas are permitted in values, skip to the end.
7474 */
7475 if (is_cookie2)
7476 next = find_hdr_value_end(next, hdr_end);
7477 else
7478 next = hdr_end;
7479 }
7480
7481 /* Now everything is as on the diagram above */
7482
7483 /* Ignore cookies with no equal sign */
7484 if (equal == val_end)
7485 continue;
7486
7487 /* If there are spaces around the equal sign, we need to
7488 * strip them otherwise we'll get trouble for cookie captures,
7489 * or even for rewrites. Since this happens extremely rarely,
7490 * it does not hurt performance.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7491 */
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7492 if (unlikely(att_end != equal || val_beg > equal + 1)) {
7493 int stripped_before = 0;
7494 int stripped_after = 0;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7495
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7496 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7497 stripped_before = buffer_replace2(res->buf, att_end, equal, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7498 equal += stripped_before;
7499 val_beg += stripped_before;
7500 }
7501
7502 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7503 stripped_after = buffer_replace2(res->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7504 val_beg += stripped_after;
7505 stripped_before += stripped_after;
7506 }
7507
7508 val_end += stripped_before;
7509 next += stripped_before;
7510 hdr_end += stripped_before;
7511 hdr_next += stripped_before;
7512 cur_hdr->len += stripped_before;
Willy Tarreau1fc1f452011-04-07 22:35:37 +0200[diff] [blame]7513 http_msg_move_end(&txn->rsp, stripped_before);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7514 }
7515
7516 /* First, let's see if we want to capture this cookie. We check
7517 * that we don't already have a server side cookie, because we
7518 * can only capture one. Also as an optimisation, we ignore
7519 * cookies shorter than the declared name.
7520 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7521 if (sess->fe->capture_name != NULL &&
Willy Tarreau3bac9ff2007-03-18 17:31:28 +0100[diff] [blame]7522 txn->srv_cookie == NULL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7523 (val_end - att_beg >= sess->fe->capture_namelen) &&
7524 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7525 int log_len = val_end - att_beg;
Willy Tarreau086b3b42007-05-13 21:45:51 +0200[diff] [blame]7526 if ((txn->srv_cookie = pool_alloc2(pool2_capture)) == NULL) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7527 Alert("HTTP logging : out of memory.\n");
7528 }
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7529 else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7530 if (log_len > sess->fe->capture_len)
7531 log_len = sess->fe->capture_len;
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7532 memcpy(txn->srv_cookie, att_beg, log_len);
7533 txn->srv_cookie[log_len] = 0;
7534 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7535 }
7536
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7537 srv = objt_server(s->target);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7538 /* now check if we need to process it for persistence */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7539 if (!(s->flags & SF_IGNORE_PRST) &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7540 (att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
7541 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7542 /* assume passive cookie by default */
7543 txn->flags &= ~TX_SCK_MASK;
7544 txn->flags |= TX_SCK_FOUND;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7545
7546 /* If the cookie is in insert mode on a known server, we'll delete
7547 * this occurrence because we'll insert another one later.
7548 * 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]7549 * a direct access.
7550 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7551 if (s->be->ck_opts & PR_CK_PSV) {
Willy Tarreauba4c5be2010-10-23 12:46:42 +0200[diff] [blame]7552 /* The "preserve" flag was set, we don't want to touch the
7553 * server's cookie.
7554 */
7555 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7556 else if ((srv && (s->be->ck_opts & PR_CK_INS)) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7557 ((s->flags & SF_DIRECT) && (s->be->ck_opts & PR_CK_IND))) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7558 /* this cookie must be deleted */
7559 if (*prev == ':' && next == hdr_end) {
7560 /* whole header */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7561 delta = buffer_replace2(res->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7562 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7563 txn->hdr_idx.used--;
7564 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7565 cur_idx = old_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7566 hdr_next += delta;
7567 http_msg_move_end(&txn->rsp, delta);
7568 /* note: while both invalid now, <next> and <hdr_end>
7569 * are still equal, so the for() will stop as expected.
7570 */
7571 } else {
7572 /* just remove the value */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7573 int delta = del_hdr_value(res->buf, &prev, next);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7574 next = prev;
7575 hdr_end += delta;
7576 hdr_next += delta;
7577 cur_hdr->len += delta;
7578 http_msg_move_end(&txn->rsp, delta);
7579 }
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7580 txn->flags &= ~TX_SCK_MASK;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7581 txn->flags |= TX_SCK_DELETED;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7582 /* and go on with next cookie */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7583 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7584 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_RW)) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7585 /* replace bytes val_beg->val_end with the cookie name associated
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7586 * with this server since we know it.
7587 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7588 delta = buffer_replace2(res->buf, val_beg, val_end, srv->cookie, srv->cklen);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7589 next += delta;
7590 hdr_end += delta;
7591 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7592 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7593 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7594
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7595 txn->flags &= ~TX_SCK_MASK;
7596 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7597 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7598 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_PFX)) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7599 /* insert the cookie name associated with this server
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7600 * before existing cookie, and insert a delimiter between them..
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7601 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7602 delta = buffer_replace2(res->buf, val_beg, val_beg, srv->cookie, srv->cklen + 1);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7603 next += delta;
7604 hdr_end += delta;
7605 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7606 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7607 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7608
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7609 val_beg[srv->cklen] = COOKIE_DELIM;
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7610 txn->flags &= ~TX_SCK_MASK;
7611 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7612 }
7613 }
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7614 /* that's done for this cookie, check the next one on the same
7615 * line when next != hdr_end (only if is_cookie2).
7616 */
7617 }
7618 /* check next header */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7619 old_idx = cur_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7620 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7621}
7622
7623
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7624/*
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7625 * Check if response is cacheable or not. Updates s->flags.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7626 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7627void check_response_for_cacheability(struct stream *s, struct channel *rtr)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7628{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7629 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7630 char *p1, *p2;
7631
7632 char *cur_ptr, *cur_end, *cur_next;
7633 int cur_idx;
7634
Willy Tarreau5df51872007-11-25 16:20:08 +0100[diff] [blame]7635 if (!(txn->flags & TX_CACHEABLE))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7636 return;
7637
7638 /* Iterate through the headers.
7639 * we start with the start line.
7640 */
7641 cur_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7642 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7643
7644 while ((cur_idx = txn->hdr_idx.v[cur_idx].next)) {
7645 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7646 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7647
7648 cur_hdr = &txn->hdr_idx.v[cur_idx];
7649 cur_ptr = cur_next;
7650 cur_end = cur_ptr + cur_hdr->len;
7651 cur_next = cur_end + cur_hdr->cr + 1;
7652
7653 /* We have one full header between cur_ptr and cur_end, and the
7654 * next header starts at cur_next. We're only interested in
7655 * "Cookie:" headers.
7656 */
7657
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7658 val = http_header_match2(cur_ptr, cur_end, "Pragma", 6);
7659 if (val) {
7660 if ((cur_end - (cur_ptr + val) >= 8) &&
7661 strncasecmp(cur_ptr + val, "no-cache", 8) == 0) {
7662 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7663 return;
7664 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7665 }
7666
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7667 val = http_header_match2(cur_ptr, cur_end, "Cache-control", 13);
7668 if (!val)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7669 continue;
7670
7671 /* OK, right now we know we have a cache-control header at cur_ptr */
7672
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7673 p1 = cur_ptr + val; /* first non-space char after 'cache-control:' */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7674
7675 if (p1 >= cur_end) /* no more info */
7676 continue;
7677
7678 /* p1 is at the beginning of the value */
7679 p2 = p1;
7680
Willy Tarreau8f8e6452007-06-17 21:51:38 +0200[diff] [blame]7681 while (p2 < cur_end && *p2 != '=' && *p2 != ',' && !isspace((unsigned char)*p2))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7682 p2++;
7683
7684 /* we have a complete value between p1 and p2 */
7685 if (p2 < cur_end && *p2 == '=') {
7686 /* we have something of the form no-cache="set-cookie" */
7687 if ((cur_end - p1 >= 21) &&
7688 strncasecmp(p1, "no-cache=\"set-cookie", 20) == 0
7689 && (p1[20] == '"' || p1[20] == ','))
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7690 txn->flags &= ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7691 continue;
7692 }
7693
7694 /* OK, so we know that either p2 points to the end of string or to a comma */
7695 if (((p2 - p1 == 7) && strncasecmp(p1, "private", 7) == 0) ||
Willy Tarreau5b15f902013-07-04 12:46:56 +0200[diff] [blame]7696 ((p2 - p1 == 8) && strncasecmp(p1, "no-cache", 8) == 0) ||
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7697 ((p2 - p1 == 8) && strncasecmp(p1, "no-store", 8) == 0) ||
7698 ((p2 - p1 == 9) && strncasecmp(p1, "max-age=0", 9) == 0) ||
7699 ((p2 - p1 == 10) && strncasecmp(p1, "s-maxage=0", 10) == 0)) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7700 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7701 return;
7702 }
7703
7704 if ((p2 - p1 == 6) && strncasecmp(p1, "public", 6) == 0) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7705 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7706 continue;
7707 }
7708 }
7709}
7710
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7711
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7712/*
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7713 * 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]7714 * for the current backend.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7715 *
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7716 * 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]7717 * uri_auth field is valid.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7718 *
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7719 * Returns 1 if stats should be provided, otherwise 0.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7720 */
Willy Tarreau295a8372011-03-10 11:25:07 +0100[diff] [blame]7721int stats_check_uri(struct stream_interface *si, struct http_txn *txn, struct proxy *backend)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7722{
7723 struct uri_auth *uri_auth = backend->uri_auth;
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]7724 struct http_msg *msg = &txn->req;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7725 const char *uri = msg->chn->buf->p+ msg->sl.rq.u;
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7726
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7727 if (!uri_auth)
7728 return 0;
7729
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7730 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]7731 return 0;
7732
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7733 /* check URI size */
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]7734 if (uri_auth->uri_len > msg->sl.rq.u_l)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7735 return 0;
7736
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]7737 if (memcmp(uri, uri_auth->uri_prefix, uri_auth->uri_len) != 0)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7738 return 0;
7739
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7740 return 1;
7741}
7742
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7743/*
7744 * Capture a bad request or response and archive it in the proxy's structure.
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7745 * By default it tries to report the error position as msg->err_pos. However if
7746 * this one is not set, it will then report msg->next, which is the last known
7747 * parsing point. The function is able to deal with wrapping buffers. It always
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7748 * displays buffers as a contiguous area starting at buf->p.
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7749 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]7750void http_capture_bad_message(struct proxy *proxy, struct error_snapshot *es, struct stream *s,
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]7751 struct http_msg *msg,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]7752 enum h1_state state, struct proxy *other_end)
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7753{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7754 struct session *sess = strm_sess(s);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7755 struct channel *chn = msg->chn;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7756 int len1, len2;
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]7757
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]7758 SPIN_LOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]7759 es->len = MIN(chn->buf->i, global.tune.bufsize);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7760 len1 = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7761 len1 = MIN(len1, es->len);
7762 len2 = es->len - len1; /* remaining data if buffer wraps */
7763
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]7764 if (!es->buf)
7765 es->buf = malloc(global.tune.bufsize);
7766
7767 if (es->buf) {
7768 memcpy(es->buf, chn->buf->p, len1);
7769 if (len2)
7770 memcpy(es->buf + len1, chn->buf->data, len2);
7771 }
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7772
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7773 if (msg->err_pos >= 0)
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7774 es->pos = msg->err_pos;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7775 else
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7776 es->pos = msg->next;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7777
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7778 es->when = date; // user-visible date
7779 es->sid = s->uniq_id;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]7780 es->srv = objt_server(s->target);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7781 es->oe = other_end;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7782 if (objt_conn(sess->origin))
7783 es->src = __objt_conn(sess->origin)->addr.from;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]7784 else
7785 memset(&es->src, 0, sizeof(es->src));
7786
Willy Tarreau078272e2010-12-12 12:46:33 +0100[diff] [blame]7787 es->state = state;
Willy Tarreau10479e42010-12-12 14:00:34 +0100[diff] [blame]7788 es->ev_id = error_snapshot_id++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7789 es->b_flags = chn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7790 es->s_flags = s->flags;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7791 es->t_flags = s->txn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7792 es->m_flags = msg->flags;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7793 es->b_out = chn->buf->o;
7794 es->b_wrap = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7795 es->b_tot = chn->total;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7796 es->m_clen = msg->chunk_len;
7797 es->m_blen = msg->body_len;
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]7798 SPIN_UNLOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7799}
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7800
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7801/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
7802 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
7803 * performed over the whole headers. Otherwise it must contain a valid header
7804 * context, initialised with ctx->idx=0 for the first lookup in a series. If
7805 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
7806 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
7807 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7808 * -1. The value fetch stops at commas, so this function is suited for use with
7809 * list headers.
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7810 * The return value is 0 if nothing was found, or non-zero otherwise.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7811 */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]7812unsigned int http_get_hdr(const struct http_msg *msg, const char *hname, int hlen,
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7813 struct hdr_idx *idx, int occ,
7814 struct hdr_ctx *ctx, char **vptr, int *vlen)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7815{
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7816 struct hdr_ctx local_ctx;
7817 char *ptr_hist[MAX_HDR_HISTORY];
7818 int len_hist[MAX_HDR_HISTORY];
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7819 unsigned int hist_ptr;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7820 int found;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7821
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7822 if (!ctx) {
7823 local_ctx.idx = 0;
7824 ctx = &local_ctx;
7825 }
7826
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7827 if (occ >= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7828 /* search from the beginning */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7829 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7830 occ--;
7831 if (occ <= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7832 *vptr = ctx->line + ctx->val;
7833 *vlen = ctx->vlen;
7834 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7835 }
7836 }
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7837 return 0;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7838 }
7839
7840 /* negative occurrence, we scan all the list then walk back */
7841 if (-occ > MAX_HDR_HISTORY)
7842 return 0;
7843
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7844 found = hist_ptr = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7845 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7846 ptr_hist[hist_ptr] = ctx->line + ctx->val;
7847 len_hist[hist_ptr] = ctx->vlen;
7848 if (++hist_ptr >= MAX_HDR_HISTORY)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7849 hist_ptr = 0;
7850 found++;
7851 }
7852 if (-occ > found)
7853 return 0;
7854 /* 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]7855 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
7856 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
7857 * to remain in the 0..9 range.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7858 */
Willy Tarreau67dad272013-06-12 22:27:44 +0200[diff] [blame]7859 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7860 if (hist_ptr >= MAX_HDR_HISTORY)
7861 hist_ptr -= MAX_HDR_HISTORY;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7862 *vptr = ptr_hist[hist_ptr];
7863 *vlen = len_hist[hist_ptr];
7864 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7865}
7866
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7867/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
7868 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
7869 * performed over the whole headers. Otherwise it must contain a valid header
7870 * context, initialised with ctx->idx=0 for the first lookup in a series. If
7871 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
7872 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
7873 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
7874 * -1. This function differs from http_get_hdr() in that it only returns full
7875 * line header values and does not stop at commas.
7876 * The return value is 0 if nothing was found, or non-zero otherwise.
7877 */
7878unsigned int http_get_fhdr(const struct http_msg *msg, const char *hname, int hlen,
7879 struct hdr_idx *idx, int occ,
7880 struct hdr_ctx *ctx, char **vptr, int *vlen)
7881{
7882 struct hdr_ctx local_ctx;
7883 char *ptr_hist[MAX_HDR_HISTORY];
7884 int len_hist[MAX_HDR_HISTORY];
7885 unsigned int hist_ptr;
7886 int found;
7887
7888 if (!ctx) {
7889 local_ctx.idx = 0;
7890 ctx = &local_ctx;
7891 }
7892
7893 if (occ >= 0) {
7894 /* search from the beginning */
7895 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
7896 occ--;
7897 if (occ <= 0) {
7898 *vptr = ctx->line + ctx->val;
7899 *vlen = ctx->vlen;
7900 return 1;
7901 }
7902 }
7903 return 0;
7904 }
7905
7906 /* negative occurrence, we scan all the list then walk back */
7907 if (-occ > MAX_HDR_HISTORY)
7908 return 0;
7909
7910 found = hist_ptr = 0;
7911 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
7912 ptr_hist[hist_ptr] = ctx->line + ctx->val;
7913 len_hist[hist_ptr] = ctx->vlen;
7914 if (++hist_ptr >= MAX_HDR_HISTORY)
7915 hist_ptr = 0;
7916 found++;
7917 }
7918 if (-occ > found)
7919 return 0;
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]7920
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7921 /* 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]7922 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
7923 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
7924 * to remain in the 0..9 range.
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7925 */
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]7926 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7927 if (hist_ptr >= MAX_HDR_HISTORY)
7928 hist_ptr -= MAX_HDR_HISTORY;
7929 *vptr = ptr_hist[hist_ptr];
7930 *vlen = len_hist[hist_ptr];
7931 return 1;
7932}
7933
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]7934/*
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]7935 * Print a debug line with a header. Always stop at the first CR or LF char,
7936 * so it is safe to pass it a full buffer if needed. If <err> is not NULL, an
7937 * arrow is printed after the line which contains the pointer.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7938 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7939void debug_hdr(const char *dir, struct stream *s, const char *start, const char *end)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7940{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7941 struct session *sess = strm_sess(s);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7942 int max;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7943
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7944 chunk_printf(&trash, "%08x:%s.%s[%04x:%04x]: ", s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]7945 dir,
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]7946 objt_conn(sess->origin) ? (unsigned short)objt_conn(sess->origin)->handle.fd : -1,
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200[diff] [blame]7947 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]7948
7949 for (max = 0; start + max < end; max++)
7950 if (start[max] == '\r' || start[max] == '\n')
7951 break;
7952
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7953 UBOUND(max, trash.size - trash.len - 3);
7954 trash.len += strlcpy2(trash.str + trash.len, start, max + 1);
7955 trash.str[trash.len++] = '\n';
Willy Tarreau89efaed2013-12-13 15:14:55 +0100[diff] [blame]7956 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7957}
7958
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7959
7960/* Allocate a new HTTP transaction for stream <s> unless there is one already.
7961 * The hdr_idx is allocated as well. In case of allocation failure, everything
7962 * allocated is freed and NULL is returned. Otherwise the new transaction is
7963 * assigned to the stream and returned.
7964 */
7965struct http_txn *http_alloc_txn(struct stream *s)
7966{
7967 struct http_txn *txn = s->txn;
7968
7969 if (txn)
7970 return txn;
7971
7972 txn = pool_alloc2(pool2_http_txn);
7973 if (!txn)
7974 return txn;
7975
7976 txn->hdr_idx.size = global.tune.max_http_hdr;
7977 txn->hdr_idx.v = pool_alloc2(pool2_hdr_idx);
7978 if (!txn->hdr_idx.v) {
7979 pool_free2(pool2_http_txn, txn);
7980 return NULL;
7981 }
7982
7983 s->txn = txn;
7984 return txn;
7985}
7986
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]7987void http_txn_reset_req(struct http_txn *txn)
7988{
7989 txn->req.flags = 0;
7990 txn->req.sol = txn->req.eol = txn->req.eoh = 0; /* relative to the buffer */
7991 txn->req.next = 0;
7992 txn->req.chunk_len = 0LL;
7993 txn->req.body_len = 0LL;
7994 txn->req.msg_state = HTTP_MSG_RQBEFORE; /* at the very beginning of the request */
7995}
7996
7997void http_txn_reset_res(struct http_txn *txn)
7998{
7999 txn->rsp.flags = 0;
8000 txn->rsp.sol = txn->rsp.eol = txn->rsp.eoh = 0; /* relative to the buffer */
8001 txn->rsp.next = 0;
8002 txn->rsp.chunk_len = 0LL;
8003 txn->rsp.body_len = 0LL;
8004 txn->rsp.msg_state = HTTP_MSG_RPBEFORE; /* at the very beginning of the response */
8005}
8006
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8007/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8008 * Initialize a new HTTP transaction for stream <s>. It is assumed that all
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8009 * the required fields are properly allocated and that we only need to (re)init
8010 * them. This should be used before processing any new request.
8011 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8012void http_init_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8013{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8014 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8015 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8016
8017 txn->flags = 0;
8018 txn->status = -1;
8019
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]8020 txn->cookie_first_date = 0;
8021 txn->cookie_last_date = 0;
8022
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8023 txn->srv_cookie = NULL;
8024 txn->cli_cookie = NULL;
8025 txn->uri = NULL;
8026
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8027 http_txn_reset_req(txn);
8028 http_txn_reset_res(txn);
8029
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8030 txn->req.chn = &s->req;
8031 txn->rsp.chn = &s->res;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8032
8033 txn->auth.method = HTTP_AUTH_UNKNOWN;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8034
8035 txn->req.err_pos = txn->rsp.err_pos = -2; /* block buggy requests/responses */
8036 if (fe->options2 & PR_O2_REQBUG_OK)
8037 txn->req.err_pos = -1; /* let buggy requests pass */
8038
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8039 if (txn->hdr_idx.v)
8040 hdr_idx_init(&txn->hdr_idx);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]8041
8042 vars_init(&s->vars_txn, SCOPE_TXN);
8043 vars_init(&s->vars_reqres, SCOPE_REQ);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8044}
8045
8046/* to be used at the end of a transaction */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8047void http_end_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8048{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8049 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8050 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8051
8052 /* these ones will have been dynamically allocated */
8053 pool_free2(pool2_requri, txn->uri);
8054 pool_free2(pool2_capture, txn->cli_cookie);
8055 pool_free2(pool2_capture, txn->srv_cookie);
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]8056 pool_free2(pool2_uniqueid, s->unique_id);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8057
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]8058 s->unique_id = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8059 txn->uri = NULL;
8060 txn->srv_cookie = NULL;
8061 txn->cli_cookie = NULL;
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8062
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8063 if (s->req_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8064 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8065 for (h = fe->req_cap; h; h = h->next)
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8066 pool_free2(h->pool, s->req_cap[h->index]);
8067 memset(s->req_cap, 0, fe->nb_req_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8068 }
8069
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8070 if (s->res_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8071 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8072 for (h = fe->rsp_cap; h; h = h->next)
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8073 pool_free2(h->pool, s->res_cap[h->index]);
8074 memset(s->res_cap, 0, fe->nb_rsp_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8075 }
8076
Willy Tarreau6204cd92016-03-10 16:33:04 +0100[diff] [blame]8077 vars_prune(&s->vars_txn, s->sess, s);
8078 vars_prune(&s->vars_reqres, s->sess, s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8079}
8080
8081/* to be used at the end of a transaction to prepare a new one */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8082void http_reset_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8083{
8084 http_end_txn(s);
8085 http_init_txn(s);
8086
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]8087 /* reinitialise the current rule list pointer to NULL. We are sure that
8088 * any rulelist match the NULL pointer.
8089 */
8090 s->current_rule_list = NULL;
8091
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8092 s->be = strm_fe(s);
8093 s->logs.logwait = strm_fe(s)->to_log;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]8094 s->logs.level = 0;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8095 stream_del_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]8096 s->target = NULL;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8097 /* re-init store persistence */
8098 s->store_count = 0;
Willy Tarreau1f0da242014-01-25 11:01:50 +0100[diff] [blame]8099 s->uniq_id = global.req_count++;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8100
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8101 s->pend_pos = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8102
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8103 s->req.flags |= CF_READ_DONTWAIT; /* one read is usually enough */
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8104
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8105 /* We must trim any excess data from the response buffer, because we
8106 * may have blocked an invalid response from a server that we don't
8107 * want to accidentely forward once we disable the analysers, nor do
8108 * we want those data to come along with next response. A typical
8109 * example of such data would be from a buggy server responding to
8110 * a HEAD with some data, or sending more than the advertised
8111 * content-length.
8112 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8113 if (unlikely(s->res.buf->i))
8114 s->res.buf->i = 0;
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8115
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]8116 /* Now we can realign the response buffer */
8117 buffer_realign(s->res.buf);
8118
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8119 s->req.rto = strm_fe(s)->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8120 s->req.wto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8121
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8122 s->res.rto = TICK_ETERNITY;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8123 s->res.wto = strm_fe(s)->timeout.client;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8124
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8125 s->req.rex = TICK_ETERNITY;
8126 s->req.wex = TICK_ETERNITY;
8127 s->req.analyse_exp = TICK_ETERNITY;
8128 s->res.rex = TICK_ETERNITY;
8129 s->res.wex = TICK_ETERNITY;
8130 s->res.analyse_exp = TICK_ETERNITY;
Hongbo Longe39683c2017-03-10 18:41:51 +0100[diff] [blame]8131 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8132}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8133
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8134void free_http_res_rules(struct list *r)
8135{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8136 struct act_rule *tr, *pr;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8137
8138 list_for_each_entry_safe(pr, tr, r, list) {
8139 LIST_DEL(&pr->list);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8140 regex_free(&pr->arg.hdr_add.re);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8141 free(pr);
8142 }
8143}
8144
8145void free_http_req_rules(struct list *r)
8146{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8147 struct act_rule *tr, *pr;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8148
8149 list_for_each_entry_safe(pr, tr, r, list) {
8150 LIST_DEL(&pr->list);
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8151 if (pr->action == ACT_HTTP_REQ_AUTH)
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8152 free(pr->arg.auth.realm);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8153
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8154 regex_free(&pr->arg.hdr_add.re);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8155 free(pr);
8156 }
8157}
8158
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8159/* parse an "http-request" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8160struct 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]8161{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8162 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8163 struct action_kw *custom = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8164 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8165 char *error;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8166
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]8167 rule = calloc(1, sizeof(*rule));
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8168 if (!rule) {
8169 Alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8170 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8171 }
8172
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8173 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8174 rule->action = ACT_ACTION_ALLOW;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8175 cur_arg = 1;
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8176 } else if (!strcmp(args[0], "deny") || !strcmp(args[0], "block") || !strcmp(args[0], "tarpit")) {
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8177 int code;
8178 int hc;
8179
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8180 if (!strcmp(args[0], "tarpit")) {
8181 rule->action = ACT_HTTP_REQ_TARPIT;
8182 rule->deny_status = HTTP_ERR_500;
8183 }
8184 else {
8185 rule->action = ACT_ACTION_DENY;
8186 rule->deny_status = HTTP_ERR_403;
8187 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8188 cur_arg = 1;
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8189 if (strcmp(args[cur_arg], "deny_status") == 0) {
8190 cur_arg++;
8191 if (!args[cur_arg]) {
8192 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing status code.\n",
8193 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
8194 goto out_err;
8195 }
8196
8197 code = atol(args[cur_arg]);
8198 cur_arg++;
8199 for (hc = 0; hc < HTTP_ERR_SIZE; hc++) {
8200 if (http_err_codes[hc] == code) {
8201 rule->deny_status = hc;
8202 break;
8203 }
8204 }
8205
8206 if (hc >= HTTP_ERR_SIZE) {
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8207 Warning("parsing [%s:%d] : status code %d not handled, using default code %d.\n",
8208 file, linenum, code, http_err_codes[rule->deny_status]);
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8209 }
8210 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8211 } else if (!strcmp(args[0], "auth")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8212 rule->action = ACT_HTTP_REQ_AUTH;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8213 cur_arg = 1;
8214
8215 while(*args[cur_arg]) {
8216 if (!strcmp(args[cur_arg], "realm")) {
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8217 rule->arg.auth.realm = strdup(args[cur_arg + 1]);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8218 cur_arg+=2;
8219 continue;
8220 } else
8221 break;
8222 }
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8223 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8224 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8225 cur_arg = 1;
8226
8227 if (!*args[cur_arg] ||
8228 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8229 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer value).\n",
8230 file, linenum, args[0]);
8231 goto out_err;
8232 }
8233 rule->arg.nice = atoi(args[cur_arg]);
8234 if (rule->arg.nice < -1024)
8235 rule->arg.nice = -1024;
8236 else if (rule->arg.nice > 1024)
8237 rule->arg.nice = 1024;
8238 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8239 } else if (!strcmp(args[0], "set-tos")) {
8240#ifdef IP_TOS
8241 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8242 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8243 cur_arg = 1;
8244
8245 if (!*args[cur_arg] ||
8246 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8247 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8248 file, linenum, args[0]);
8249 goto out_err;
8250 }
8251
8252 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8253 if (err && *err != '\0') {
8254 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8255 file, linenum, err, args[0]);
8256 goto out_err;
8257 }
8258 cur_arg++;
8259#else
8260 Alert("parsing [%s:%d]: 'http-request %s' is not supported on this platform (IP_TOS undefined).\n", file, linenum, args[0]);
8261 goto out_err;
8262#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8263 } else if (!strcmp(args[0], "set-mark")) {
8264#ifdef SO_MARK
8265 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8266 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8267 cur_arg = 1;
8268
8269 if (!*args[cur_arg] ||
8270 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8271 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8272 file, linenum, args[0]);
8273 goto out_err;
8274 }
8275
8276 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8277 if (err && *err != '\0') {
8278 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8279 file, linenum, err, args[0]);
8280 goto out_err;
8281 }
8282 cur_arg++;
8283 global.last_checks |= LSTCHK_NETADM;
8284#else
8285 Alert("parsing [%s:%d]: 'http-request %s' is not supported on this platform (SO_MARK undefined).\n", file, linenum, args[0]);
8286 goto out_err;
8287#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8288 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8289 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8290 cur_arg = 1;
8291
8292 if (!*args[cur_arg] ||
8293 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8294 bad_log_level:
8295 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (log level name or 'silent').\n",
8296 file, linenum, args[0]);
8297 goto out_err;
8298 }
8299 if (strcmp(args[cur_arg], "silent") == 0)
8300 rule->arg.loglevel = -1;
8301 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
8302 goto bad_log_level;
8303 cur_arg++;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8304 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8305 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8306 cur_arg = 1;
8307
Willy Tarreau8d1c5162013-04-03 14:13:58 +0200[diff] [blame]8308 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8309 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8310 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8311 file, linenum, args[0]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8312 goto out_err;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8313 }
8314
8315 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8316 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8317 LIST_INIT(&rule->arg.hdr_add.fmt);
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]8318
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8319 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8320 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8321 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]8322 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8323 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8324 file, linenum, args[0], error);
8325 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8326 goto out_err;
8327 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8328 free(proxy->conf.lfs_file);
8329 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8330 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8331 cur_arg += 2;
Willy Tarreaub8543922014-06-17 18:58:26 +0200[diff] [blame]8332 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8333 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8334 cur_arg = 1;
8335
8336 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann92df3702014-06-24 11:10:00 +0200[diff] [blame]8337 (*args[cur_arg+3] && strcmp(args[cur_arg+3], "if") != 0 && strcmp(args[cur_arg+3], "unless") != 0)) {
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8338 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 3 arguments.\n",
8339 file, linenum, args[0]);
8340 goto out_err;
8341 }
8342
8343 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8344 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8345 LIST_INIT(&rule->arg.hdr_add.fmt);
8346
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8347 error = NULL;
8348 if (!regex_comp(args[cur_arg + 1], &rule->arg.hdr_add.re, 1, 1, &error)) {
8349 Alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8350 args[cur_arg + 1], error);
8351 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8352 goto out_err;
8353 }
8354
8355 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8356 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8357 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]8358 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8359 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8360 file, linenum, args[0], error);
8361 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8362 goto out_err;
8363 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8364
8365 free(proxy->conf.lfs_file);
8366 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8367 proxy->conf.lfs_line = proxy->conf.args.line;
8368 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8369 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8370 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8371 cur_arg = 1;
8372
8373 if (!*args[cur_arg] ||
8374 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8375 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8376 file, linenum, args[0]);
8377 goto out_err;
8378 }
8379
8380 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8381 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8382
8383 proxy->conf.args.ctx = ARGC_HRQ;
8384 free(proxy->conf.lfs_file);
8385 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8386 proxy->conf.lfs_line = proxy->conf.args.line;
8387 cur_arg += 1;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8388 } else if (strncmp(args[0], "track-sc", 8) == 0 &&
8389 args[0][9] == '\0' && args[0][8] >= '0' &&
Willy Tarreaue1cfc1f2014-10-17 11:53:05 +0200[diff] [blame]8390 args[0][8] < '0' + MAX_SESS_STKCTR) { /* track-sc 0..9 */
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8391 struct sample_expr *expr;
8392 unsigned int where;
8393 char *err = NULL;
8394
8395 cur_arg = 1;
8396 proxy->conf.args.ctx = ARGC_TRK;
8397
8398 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
8399 if (!expr) {
8400 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8401 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
8402 free(err);
8403 goto out_err;
8404 }
8405
8406 where = 0;
8407 if (proxy->cap & PR_CAP_FE)
8408 where |= SMP_VAL_FE_HRQ_HDR;
8409 if (proxy->cap & PR_CAP_BE)
8410 where |= SMP_VAL_BE_HRQ_HDR;
8411
8412 if (!(expr->fetch->val & where)) {
8413 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule :"
8414 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
8415 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
8416 args[cur_arg-1], sample_src_names(expr->fetch->use));
8417 free(expr);
8418 goto out_err;
8419 }
8420
8421 if (strcmp(args[cur_arg], "table") == 0) {
8422 cur_arg++;
8423 if (!args[cur_arg]) {
8424 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing table name.\n",
8425 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
8426 free(expr);
8427 goto out_err;
8428 }
8429 /* we copy the table name for now, it will be resolved later */
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8430 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8431 cur_arg++;
8432 }
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8433 rule->arg.trk_ctr.expr = expr;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8434 rule->action = ACT_ACTION_TRK_SC0 + args[0][8] - '0';
Christopher Faulet78880fb2017-09-18 14:43:55 +0200[diff] [blame]8435 rule->check_ptr = check_trk_action;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8436 } else if (strcmp(args[0], "redirect") == 0) {
8437 struct redirect_rule *redir;
Willy Tarreau6d4890c2013-11-18 18:04:25 +0100[diff] [blame]8438 char *errmsg = NULL;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8439
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]8440 if ((redir = http_parse_redirect_rule(file, linenum, proxy, (const char **)args + 1, &errmsg, 1, 0)) == NULL) {
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8441 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8442 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
8443 goto out_err;
8444 }
8445
8446 /* this redirect rule might already contain a parsed condition which
8447 * we'll pass to the http-request rule.
8448 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8449 rule->action = ACT_HTTP_REDIR;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8450 rule->arg.redir = redir;
8451 rule->cond = redir->cond;
8452 redir->cond = NULL;
8453 cur_arg = 2;
8454 return rule;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8455 } else if (strncmp(args[0], "add-acl", 7) == 0) {
8456 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8457 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8458 /*
8459 * '+ 8' for 'add-acl('
8460 * '- 9' for 'add-acl(' + trailing ')'
8461 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8462 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8463
8464 cur_arg = 1;
8465
8466 if (!*args[cur_arg] ||
8467 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8468 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8469 file, linenum, args[0]);
8470 goto out_err;
8471 }
8472
8473 LIST_INIT(&rule->arg.map.key);
8474 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8475 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8476 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]8477 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8478 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8479 file, linenum, args[0], error);
8480 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8481 goto out_err;
8482 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8483 free(proxy->conf.lfs_file);
8484 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8485 proxy->conf.lfs_line = proxy->conf.args.line;
8486 cur_arg += 1;
8487 } else if (strncmp(args[0], "del-acl", 7) == 0) {
8488 /* http-request del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8489 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8490 /*
8491 * '+ 8' for 'del-acl('
8492 * '- 9' for 'del-acl(' + trailing ')'
8493 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8494 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8495
8496 cur_arg = 1;
8497
8498 if (!*args[cur_arg] ||
8499 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8500 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8501 file, linenum, args[0]);
8502 goto out_err;
8503 }
8504
8505 LIST_INIT(&rule->arg.map.key);
8506 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8507 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8508 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]8509 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8510 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8511 file, linenum, args[0], error);
8512 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8513 goto out_err;
8514 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8515 free(proxy->conf.lfs_file);
8516 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8517 proxy->conf.lfs_line = proxy->conf.args.line;
8518 cur_arg += 1;
8519 } else if (strncmp(args[0], "del-map", 7) == 0) {
8520 /* http-request del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8521 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8522 /*
8523 * '+ 8' for 'del-map('
8524 * '- 9' for 'del-map(' + trailing ')'
8525 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8526 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8527
8528 cur_arg = 1;
8529
8530 if (!*args[cur_arg] ||
8531 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8532 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8533 file, linenum, args[0]);
8534 goto out_err;
8535 }
8536
8537 LIST_INIT(&rule->arg.map.key);
8538 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8539 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8540 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]8541 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8542 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8543 file, linenum, args[0], error);
8544 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8545 goto out_err;
8546 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8547 free(proxy->conf.lfs_file);
8548 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8549 proxy->conf.lfs_line = proxy->conf.args.line;
8550 cur_arg += 1;
8551 } else if (strncmp(args[0], "set-map", 7) == 0) {
8552 /* http-request set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8553 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8554 /*
8555 * '+ 8' for 'set-map('
8556 * '- 9' for 'set-map(' + trailing ')'
8557 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8558 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8559
8560 cur_arg = 1;
8561
8562 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8563 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
8564 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8565 file, linenum, args[0]);
8566 goto out_err;
8567 }
8568
8569 LIST_INIT(&rule->arg.map.key);
8570 LIST_INIT(&rule->arg.map.value);
8571 proxy->conf.args.ctx = ARGC_HRQ;
8572
8573 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8574 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8575 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]8576 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8577 Alert("parsing [%s:%d]: 'http-request %s' key: %s.\n",
8578 file, linenum, args[0], error);
8579 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8580 goto out_err;
8581 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8582
8583 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8584 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8585 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]8586 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8587 Alert("parsing [%s:%d]: 'http-request %s' pattern: %s.\n",
8588 file, linenum, args[0], error);
8589 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8590 goto out_err;
8591 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8592 free(proxy->conf.lfs_file);
8593 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8594 proxy->conf.lfs_line = proxy->conf.args.line;
8595
8596 cur_arg += 2;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8597 } else if (((custom = action_http_req_custom(args[0])) != NULL)) {
8598 char *errmsg = NULL;
8599 cur_arg = 1;
8600 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]8601 rule->from = ACT_F_HTTP_REQ;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]8602 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]8603 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8604 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8605 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
8606 free(errmsg);
8607 goto out_err;
8608 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8609 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]8610 action_build_list(&http_req_keywords.list, &trash);
8611 Alert("parsing [%s:%d]: 'http-request' expects 'allow', 'deny', 'auth', 'redirect', "
8612 "'tarpit', 'add-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]8613 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', 'track-sc*'"
William Lallemand2e785f22016-05-25 01:48:42 +0200[diff] [blame]8614 "%s%s, but got '%s'%s.\n",
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]8615 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8616 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8617 }
8618
8619 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
8620 struct acl_cond *cond;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]8621 char *errmsg = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8622
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]8623 if ((cond = build_acl_cond(file, linenum, &proxy->acl, proxy, args+cur_arg, &errmsg)) == NULL) {
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]8624 Alert("parsing [%s:%d] : error detected while parsing an 'http-request %s' condition : %s.\n",
8625 file, linenum, args[0], errmsg);
8626 free(errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8627 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8628 }
8629 rule->cond = cond;
8630 }
8631 else if (*args[cur_arg]) {
8632 Alert("parsing [%s:%d]: 'http-request %s' expects 'realm' for 'auth' or"
8633 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
8634 file, linenum, args[0], args[cur_arg]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8635 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8636 }
8637
8638 return rule;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8639 out_err:
8640 free(rule);
8641 return NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8642}
8643
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8644/* parse an "http-respose" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8645struct 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]8646{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8647 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8648 struct action_kw *custom = NULL;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8649 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8650 char *error;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8651
8652 rule = calloc(1, sizeof(*rule));
8653 if (!rule) {
8654 Alert("parsing [%s:%d]: out of memory.\n", file, linenum);
8655 goto out_err;
8656 }
8657
8658 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8659 rule->action = ACT_ACTION_ALLOW;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8660 cur_arg = 1;
8661 } else if (!strcmp(args[0], "deny")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8662 rule->action = ACT_ACTION_DENY;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8663 cur_arg = 1;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8664 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8665 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8666 cur_arg = 1;
8667
8668 if (!*args[cur_arg] ||
8669 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8670 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer value).\n",
8671 file, linenum, args[0]);
8672 goto out_err;
8673 }
8674 rule->arg.nice = atoi(args[cur_arg]);
8675 if (rule->arg.nice < -1024)
8676 rule->arg.nice = -1024;
8677 else if (rule->arg.nice > 1024)
8678 rule->arg.nice = 1024;
8679 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8680 } else if (!strcmp(args[0], "set-tos")) {
8681#ifdef IP_TOS
8682 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8683 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8684 cur_arg = 1;
8685
8686 if (!*args[cur_arg] ||
8687 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8688 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8689 file, linenum, args[0]);
8690 goto out_err;
8691 }
8692
8693 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8694 if (err && *err != '\0') {
8695 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8696 file, linenum, err, args[0]);
8697 goto out_err;
8698 }
8699 cur_arg++;
8700#else
8701 Alert("parsing [%s:%d]: 'http-response %s' is not supported on this platform (IP_TOS undefined).\n", file, linenum, args[0]);
8702 goto out_err;
8703#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8704 } else if (!strcmp(args[0], "set-mark")) {
8705#ifdef SO_MARK
8706 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8707 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8708 cur_arg = 1;
8709
8710 if (!*args[cur_arg] ||
8711 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8712 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8713 file, linenum, args[0]);
8714 goto out_err;
8715 }
8716
8717 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8718 if (err && *err != '\0') {
8719 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8720 file, linenum, err, args[0]);
8721 goto out_err;
8722 }
8723 cur_arg++;
8724 global.last_checks |= LSTCHK_NETADM;
8725#else
8726 Alert("parsing [%s:%d]: 'http-response %s' is not supported on this platform (SO_MARK undefined).\n", file, linenum, args[0]);
8727 goto out_err;
8728#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8729 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8730 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8731 cur_arg = 1;
8732
8733 if (!*args[cur_arg] ||
8734 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8735 bad_log_level:
8736 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (log level name or 'silent').\n",
8737 file, linenum, args[0]);
8738 goto out_err;
8739 }
8740 if (strcmp(args[cur_arg], "silent") == 0)
8741 rule->arg.loglevel = -1;
Ruoshan Huangdd016782016-06-15 22:16:03 +0800[diff] [blame]8742 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8743 goto bad_log_level;
8744 cur_arg++;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8745 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8746 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8747 cur_arg = 1;
8748
8749 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8750 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
8751 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
8752 file, linenum, args[0]);
8753 goto out_err;
8754 }
8755
8756 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8757 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8758 LIST_INIT(&rule->arg.hdr_add.fmt);
8759
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8760 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8761 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8762 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]8763 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8764 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8765 file, linenum, args[0], error);
8766 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8767 goto out_err;
8768 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8769 free(proxy->conf.lfs_file);
8770 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8771 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8772 cur_arg += 2;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8773 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8774 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8775 cur_arg = 1;
8776
8777 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann12cb00b2014-08-08 17:29:06 +0200[diff] [blame]8778 (*args[cur_arg+3] && strcmp(args[cur_arg+3], "if") != 0 && strcmp(args[cur_arg+3], "unless") != 0)) {
8779 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 3 arguments.\n",
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8780 file, linenum, args[0]);
8781 goto out_err;
8782 }
8783
8784 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8785 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8786 LIST_INIT(&rule->arg.hdr_add.fmt);
8787
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8788 error = NULL;
8789 if (!regex_comp(args[cur_arg + 1], &rule->arg.hdr_add.re, 1, 1, &error)) {
8790 Alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8791 args[cur_arg + 1], error);
8792 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8793 goto out_err;
8794 }
8795
8796 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8797 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8798 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]8799 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8800 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8801 file, linenum, args[0], error);
8802 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8803 goto out_err;
8804 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8805
8806 free(proxy->conf.lfs_file);
8807 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8808 proxy->conf.lfs_line = proxy->conf.args.line;
8809 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8810 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8811 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8812 cur_arg = 1;
8813
8814 if (!*args[cur_arg] ||
8815 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8816 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8817 file, linenum, args[0]);
8818 goto out_err;
8819 }
8820
8821 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8822 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8823
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8824 proxy->conf.args.ctx = ARGC_HRS;
8825 free(proxy->conf.lfs_file);
8826 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8827 proxy->conf.lfs_line = proxy->conf.args.line;
8828 cur_arg += 1;
8829 } else if (strncmp(args[0], "add-acl", 7) == 0) {
8830 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8831 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8832 /*
8833 * '+ 8' for 'add-acl('
8834 * '- 9' for 'add-acl(' + trailing ')'
8835 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8836 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8837
8838 cur_arg = 1;
8839
8840 if (!*args[cur_arg] ||
8841 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8842 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8843 file, linenum, args[0]);
8844 goto out_err;
8845 }
8846
8847 LIST_INIT(&rule->arg.map.key);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8848 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8849 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8850 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]8851 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8852 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8853 file, linenum, args[0], error);
8854 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8855 goto out_err;
8856 }
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8857 free(proxy->conf.lfs_file);
8858 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8859 proxy->conf.lfs_line = proxy->conf.args.line;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8860
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8861 cur_arg += 1;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8862 } else if (strncmp(args[0], "del-acl", 7) == 0) {
8863 /* http-response del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8864 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8865 /*
8866 * '+ 8' for 'del-acl('
8867 * '- 9' for 'del-acl(' + trailing ')'
8868 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8869 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8870
8871 cur_arg = 1;
8872
8873 if (!*args[cur_arg] ||
8874 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8875 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8876 file, linenum, args[0]);
8877 goto out_err;
8878 }
8879
8880 LIST_INIT(&rule->arg.map.key);
8881 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8882 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8883 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]8884 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8885 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8886 file, linenum, args[0], error);
8887 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8888 goto out_err;
8889 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8890 free(proxy->conf.lfs_file);
8891 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8892 proxy->conf.lfs_line = proxy->conf.args.line;
8893 cur_arg += 1;
8894 } else if (strncmp(args[0], "del-map", 7) == 0) {
8895 /* http-response del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8896 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8897 /*
8898 * '+ 8' for 'del-map('
8899 * '- 9' for 'del-map(' + trailing ')'
8900 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8901 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8902
8903 cur_arg = 1;
8904
8905 if (!*args[cur_arg] ||
8906 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8907 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8908 file, linenum, args[0]);
8909 goto out_err;
8910 }
8911
8912 LIST_INIT(&rule->arg.map.key);
8913 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8914 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8915 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]8916 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8917 Alert("parsing [%s:%d]: 'http-response %s' %s.\n",
8918 file, linenum, args[0], error);
8919 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8920 goto out_err;
8921 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8922 free(proxy->conf.lfs_file);
8923 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8924 proxy->conf.lfs_line = proxy->conf.args.line;
8925 cur_arg += 1;
8926 } else if (strncmp(args[0], "set-map", 7) == 0) {
8927 /* http-response set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8928 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8929 /*
8930 * '+ 8' for 'set-map('
8931 * '- 9' for 'set-map(' + trailing ')'
8932 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8933 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8934
8935 cur_arg = 1;
8936
8937 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8938 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
8939 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
8940 file, linenum, args[0]);
8941 goto out_err;
8942 }
8943
8944 LIST_INIT(&rule->arg.map.key);
8945 LIST_INIT(&rule->arg.map.value);
8946
8947 proxy->conf.args.ctx = ARGC_HRS;
8948
8949 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8950 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8951 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]8952 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8953 Alert("parsing [%s:%d]: 'http-response %s' name: %s.\n",
8954 file, linenum, args[0], error);
8955 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8956 goto out_err;
8957 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8958
8959 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8960 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8961 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]8962 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8963 Alert("parsing [%s:%d]: 'http-response %s' value: %s.\n",
8964 file, linenum, args[0], error);
8965 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8966 goto out_err;
8967 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8968
8969 free(proxy->conf.lfs_file);
8970 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8971 proxy->conf.lfs_line = proxy->conf.args.line;
8972
8973 cur_arg += 2;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]8974 } else if (strcmp(args[0], "redirect") == 0) {
8975 struct redirect_rule *redir;
8976 char *errmsg = NULL;
8977
8978 if ((redir = http_parse_redirect_rule(file, linenum, proxy, (const char **)args + 1, &errmsg, 1, 1)) == NULL) {
8979 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
8980 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
8981 goto out_err;
8982 }
8983
8984 /* this redirect rule might already contain a parsed condition which
8985 * we'll pass to the http-request rule.
8986 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8987 rule->action = ACT_HTTP_REDIR;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]8988 rule->arg.redir = redir;
8989 rule->cond = redir->cond;
8990 redir->cond = NULL;
8991 cur_arg = 2;
8992 return rule;
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]8993 } else if (strncmp(args[0], "track-sc", 8) == 0 &&
8994 args[0][9] == '\0' && args[0][8] >= '0' &&
8995 args[0][8] < '0' + MAX_SESS_STKCTR) { /* track-sc 0..9 */
8996 struct sample_expr *expr;
8997 unsigned int where;
8998 char *err = NULL;
8999
9000 cur_arg = 1;
9001 proxy->conf.args.ctx = ARGC_TRK;
9002
9003 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
9004 if (!expr) {
9005 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9006 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
9007 free(err);
9008 goto out_err;
9009 }
9010
9011 where = 0;
9012 if (proxy->cap & PR_CAP_FE)
9013 where |= SMP_VAL_FE_HRS_HDR;
9014 if (proxy->cap & PR_CAP_BE)
9015 where |= SMP_VAL_BE_HRS_HDR;
9016
9017 if (!(expr->fetch->val & where)) {
9018 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule :"
9019 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
9020 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
9021 args[cur_arg-1], sample_src_names(expr->fetch->use));
9022 free(expr);
9023 goto out_err;
9024 }
9025
9026 if (strcmp(args[cur_arg], "table") == 0) {
9027 cur_arg++;
9028 if (!args[cur_arg]) {
9029 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : missing table name.\n",
9030 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
9031 free(expr);
9032 goto out_err;
9033 }
9034 /* we copy the table name for now, it will be resolved later */
9035 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
9036 cur_arg++;
9037 }
9038 rule->arg.trk_ctr.expr = expr;
9039 rule->action = ACT_ACTION_TRK_SC0 + args[0][8] - '0';
Christopher Faulet78880fb2017-09-18 14:43:55 +0200[diff] [blame]9040 rule->check_ptr = check_trk_action;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9041 } else if (((custom = action_http_res_custom(args[0])) != NULL)) {
9042 char *errmsg = NULL;
9043 cur_arg = 1;
9044 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]9045 rule->from = ACT_F_HTTP_RES;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]9046 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]9047 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9048 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9049 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
9050 free(errmsg);
9051 goto out_err;
9052 }
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9053 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9054 action_build_list(&http_res_keywords.list, &trash);
9055 Alert("parsing [%s:%d]: 'http-response' expects 'allow', 'deny', 'redirect', "
9056 "'add-header', 'del-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9057 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', 'track-sc*'"
William Lallemand2e785f22016-05-25 01:48:42 +0200[diff] [blame]9058 "%s%s, but got '%s'%s.\n",
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9059 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9060 goto out_err;
9061 }
9062
9063 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
9064 struct acl_cond *cond;
9065 char *errmsg = NULL;
9066
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]9067 if ((cond = build_acl_cond(file, linenum, &proxy->acl, proxy, args+cur_arg, &errmsg)) == NULL) {
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9068 Alert("parsing [%s:%d] : error detected while parsing an 'http-response %s' condition : %s.\n",
9069 file, linenum, args[0], errmsg);
9070 free(errmsg);
9071 goto out_err;
9072 }
9073 rule->cond = cond;
9074 }
9075 else if (*args[cur_arg]) {
9076 Alert("parsing [%s:%d]: 'http-response %s' expects"
9077 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
9078 file, linenum, args[0], args[cur_arg]);
9079 goto out_err;
9080 }
9081
9082 return rule;
9083 out_err:
9084 free(rule);
9085 return NULL;
9086}
9087
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9088/* Parses a redirect rule. Returns the redirect rule on success or NULL on error,
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9089 * 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]9090 * dynamic log-format rule instead of a static string. Parameter <dir> indicates
9091 * the direction of the rule, and equals 0 for request, non-zero for responses.
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9092 */
9093struct redirect_rule *http_parse_redirect_rule(const char *file, int linenum, struct proxy *curproxy,
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9094 const char **args, char **errmsg, int use_fmt, int dir)
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9095{
9096 struct redirect_rule *rule;
9097 int cur_arg;
9098 int type = REDIRECT_TYPE_NONE;
9099 int code = 302;
9100 const char *destination = NULL;
9101 const char *cookie = NULL;
9102 int cookie_set = 0;
9103 unsigned int flags = REDIRECT_FLAG_NONE;
9104 struct acl_cond *cond = NULL;
9105
9106 cur_arg = 0;
9107 while (*(args[cur_arg])) {
9108 if (strcmp(args[cur_arg], "location") == 0) {
9109 if (!*args[cur_arg + 1])
9110 goto missing_arg;
9111
9112 type = REDIRECT_TYPE_LOCATION;
9113 cur_arg++;
9114 destination = args[cur_arg];
9115 }
9116 else if (strcmp(args[cur_arg], "prefix") == 0) {
9117 if (!*args[cur_arg + 1])
9118 goto missing_arg;
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9119 type = REDIRECT_TYPE_PREFIX;
9120 cur_arg++;
9121 destination = args[cur_arg];
9122 }
9123 else if (strcmp(args[cur_arg], "scheme") == 0) {
9124 if (!*args[cur_arg + 1])
9125 goto missing_arg;
9126
9127 type = REDIRECT_TYPE_SCHEME;
9128 cur_arg++;
9129 destination = args[cur_arg];
9130 }
9131 else if (strcmp(args[cur_arg], "set-cookie") == 0) {
9132 if (!*args[cur_arg + 1])
9133 goto missing_arg;
9134
9135 cur_arg++;
9136 cookie = args[cur_arg];
9137 cookie_set = 1;
9138 }
9139 else if (strcmp(args[cur_arg], "clear-cookie") == 0) {
9140 if (!*args[cur_arg + 1])
9141 goto missing_arg;
9142
9143 cur_arg++;
9144 cookie = args[cur_arg];
9145 cookie_set = 0;
9146 }
9147 else if (strcmp(args[cur_arg], "code") == 0) {
9148 if (!*args[cur_arg + 1])
9149 goto missing_arg;
9150
9151 cur_arg++;
9152 code = atol(args[cur_arg]);
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9153 if (code < 301 || code > 308 || (code > 303 && code < 307)) {
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9154 memprintf(errmsg,
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9155 "'%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]9156 args[cur_arg - 1], args[cur_arg]);
9157 return NULL;
9158 }
9159 }
9160 else if (!strcmp(args[cur_arg],"drop-query")) {
9161 flags |= REDIRECT_FLAG_DROP_QS;
9162 }
9163 else if (!strcmp(args[cur_arg],"append-slash")) {
9164 flags |= REDIRECT_FLAG_APPEND_SLASH;
9165 }
9166 else if (strcmp(args[cur_arg], "if") == 0 ||
9167 strcmp(args[cur_arg], "unless") == 0) {
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]9168 cond = build_acl_cond(file, linenum, &proxy->acl, curproxy, (const char **)args + cur_arg, errmsg);
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9169 if (!cond) {
9170 memprintf(errmsg, "error in condition: %s", *errmsg);
9171 return NULL;
9172 }
9173 break;
9174 }
9175 else {
9176 memprintf(errmsg,
9177 "expects 'code', 'prefix', 'location', 'scheme', 'set-cookie', 'clear-cookie', 'drop-query' or 'append-slash' (was '%s')",
9178 args[cur_arg]);
9179 return NULL;
9180 }
9181 cur_arg++;
9182 }
9183
9184 if (type == REDIRECT_TYPE_NONE) {
9185 memprintf(errmsg, "redirection type expected ('prefix', 'location', or 'scheme')");
9186 return NULL;
9187 }
9188
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9189 if (dir && type != REDIRECT_TYPE_LOCATION) {
9190 memprintf(errmsg, "response only supports redirect type 'location'");
9191 return NULL;
9192 }
9193
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]9194 rule = calloc(1, sizeof(*rule));
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9195 rule->cond = cond;
Willy Tarreau60e08382013-12-03 00:48:45 +0100[diff] [blame]9196 LIST_INIT(&rule->rdr_fmt);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9197
9198 if (!use_fmt) {
9199 /* old-style static redirect rule */
9200 rule->rdr_str = strdup(destination);
9201 rule->rdr_len = strlen(destination);
9202 }
9203 else {
9204 /* log-format based redirect rule */
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9205
9206 /* Parse destination. Note that in the REDIRECT_TYPE_PREFIX case,
9207 * if prefix == "/", we don't want to add anything, otherwise it
9208 * makes it hard for the user to configure a self-redirection.
9209 */
Godbachd9722032014-12-18 15:44:58 +0800[diff] [blame]9210 curproxy->conf.args.ctx = ARGC_RDR;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9211 if (!(type == REDIRECT_TYPE_PREFIX && destination[0] == '/' && destination[1] == '\0')) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9212 if (!parse_logformat_string(destination, curproxy, &rule->rdr_fmt, LOG_OPT_HTTP,
9213 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]9214 : (curproxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9215 errmsg)) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9216 return NULL;
9217 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9218 free(curproxy->conf.lfs_file);
9219 curproxy->conf.lfs_file = strdup(curproxy->conf.args.file);
9220 curproxy->conf.lfs_line = curproxy->conf.args.line;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9221 }
9222 }
9223
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9224 if (cookie) {
9225 /* depending on cookie_set, either we want to set the cookie, or to clear it.
9226 * a clear consists in appending "; path=/; Max-Age=0;" at the end.
9227 */
9228 rule->cookie_len = strlen(cookie);
9229 if (cookie_set) {
9230 rule->cookie_str = malloc(rule->cookie_len + 10);
9231 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9232 memcpy(rule->cookie_str + rule->cookie_len, "; path=/;", 10);
9233 rule->cookie_len += 9;
9234 } else {
9235 rule->cookie_str = malloc(rule->cookie_len + 21);
9236 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9237 memcpy(rule->cookie_str + rule->cookie_len, "; path=/; Max-Age=0;", 21);
9238 rule->cookie_len += 20;
9239 }
9240 }
9241 rule->type = type;
9242 rule->code = code;
9243 rule->flags = flags;
9244 LIST_INIT(&rule->list);
9245 return rule;
9246
9247 missing_arg:
9248 memprintf(errmsg, "missing argument for '%s'", args[cur_arg]);
9249 return NULL;
9250}
9251
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9252/************************************************************************/
9253/* The code below is dedicated to ACL parsing and matching */
9254/************************************************************************/
9255
9256
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9257/* This function ensures that the prerequisites for an L7 fetch are ready,
9258 * which means that a request or response is ready. If some data is missing,
9259 * 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]9260 * to extract data from L7. If <req_vol> is non-null during a request prefetch,
9261 * another test is made to ensure the required information is not gone.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9262 *
9263 * The function returns :
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9264 * 0 with SMP_F_MAY_CHANGE in the sample flags if some data is missing to
9265 * decide whether or not an HTTP message is present ;
9266 * 0 if the requested data cannot be fetched or if it is certain that
9267 * we'll never have any HTTP message there ;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9268 * 1 if an HTTP message is ready
9269 */
James Rosewell91a41cb2015-09-18 17:11:16 +0100[diff] [blame]9270int smp_prefetch_http(struct proxy *px, struct stream *s, unsigned int opt,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9271 const struct arg *args, struct sample *smp, int req_vol)
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9272{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9273 struct http_txn *txn;
9274 struct http_msg *msg;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9275
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9276 /* Note: it is possible that <s> is NULL when called before stream
9277 * initialization (eg: tcp-request connection), so this function is the
9278 * one responsible for guarding against this case for all HTTP users.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9279 */
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9280 if (!s)
9281 return 0;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9282
Thierry FOURNIERed08d6a2015-09-24 08:40:18 +0200[diff] [blame]9283 if (!s->txn) {
9284 if (unlikely(!http_alloc_txn(s)))
9285 return 0; /* not enough memory */
9286 http_init_txn(s);
9287 }
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9288 txn = s->txn;
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9289 msg = &txn->req;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9290
9291 /* Check for a dependency on a request */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9292 smp->data.type = SMP_T_BOOL;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9293
Willy Tarreau32a6f2e2012-04-25 10:13:36 +0200[diff] [blame]9294 if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9295 /* If the buffer does not leave enough free space at the end,
9296 * we must first realign it.
9297 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9298 if (s->req.buf->p > s->req.buf->data &&
9299 s->req.buf->i + s->req.buf->p > s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)
9300 buffer_slow_realign(s->req.buf);
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9301
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9302 if (unlikely(txn->req.msg_state < HTTP_MSG_BODY)) {
Willy Tarreau472b1ee2013-10-14 22:41:30 +0200[diff] [blame]9303 if (msg->msg_state == HTTP_MSG_ERROR)
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9304 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9305
9306 /* Try to decode HTTP request */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9307 if (likely(msg->next < s->req.buf->i))
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9308 http_msg_analyzer(msg, &txn->hdr_idx);
9309
9310 /* Still no valid request ? */
9311 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau3bf1b2b2012-08-27 20:46:07 +0200[diff] [blame]9312 if ((msg->msg_state == HTTP_MSG_ERROR) ||
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9313 buffer_full(s->req.buf, global.tune.maxrewrite)) {
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9314 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9315 }
9316 /* wait for final state */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9317 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9318 return 0;
9319 }
9320
9321 /* OK we just got a valid HTTP request. We have some minor
9322 * preparation to perform so that further checks can rely
9323 * on HTTP tests.
9324 */
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9325
9326 /* If the request was parsed but was too large, we must absolutely
9327 * return an error so that it is not processed. At the moment this
9328 * cannot happen, but if the parsers are to change in the future,
9329 * we want this check to be maintained.
9330 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9331 if (unlikely(s->req.buf->i + s->req.buf->p >
9332 s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]9333 msg->err_state = msg->msg_state;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9334 msg->msg_state = HTTP_MSG_ERROR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9335 smp->data.u.sint = 1;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9336 return 1;
9337 }
9338
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9339 txn->meth = find_http_meth(msg->chn->buf->p, msg->sl.rq.m_l);
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9340 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]9341 s->flags |= SF_REDIRECTABLE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9342
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9343 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
9344 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9345 }
9346
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9347 if (req_vol && txn->rsp.msg_state != HTTP_MSG_RPBEFORE) {
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9348 return 0; /* data might have moved and indexes changed */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9349 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9350
9351 /* otherwise everything's ready for the request */
9352 }
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9353 else {
9354 /* Check for a dependency on a response */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9355 if (txn->rsp.msg_state < HTTP_MSG_BODY) {
9356 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9357 return 0;
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9358 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9359 }
9360
9361 /* everything's OK */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9362 smp->data.u.sint = 1;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9363 return 1;
9364}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9365
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9366/* 1. Check on METHOD
9367 * We use the pre-parsed method if it is known, and store its number as an
9368 * integer. If it is unknown, we use the pointer and the length.
9369 */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9370static int pat_parse_meth(const char *text, struct pattern *pattern, int mflags, char **err)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9371{
9372 int len, meth;
9373
Thierry FOURNIER580c32c2014-01-24 10:58:12 +0100[diff] [blame]9374 len = strlen(text);
9375 meth = find_http_meth(text, len);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9376
9377 pattern->val.i = meth;
9378 if (meth == HTTP_METH_OTHER) {
Willy Tarreau912c1192014-08-29 15:15:50 +0200[diff] [blame]9379 pattern->ptr.str = (char *)text;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9380 pattern->len = len;
9381 }
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9382 else {
9383 pattern->ptr.str = NULL;
9384 pattern->len = 0;
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9385 }
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9386 return 1;
9387}
9388
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9389/* This function fetches the method of current HTTP request and stores
9390 * it in the global pattern struct as a chunk. There are two possibilities :
9391 * - if the method is known (not HTTP_METH_OTHER), its identifier is stored
9392 * in <len> and <ptr> is NULL ;
9393 * - if the method is unknown (HTTP_METH_OTHER), <ptr> points to the text and
9394 * <len> to its length.
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]9395 * This is intended to be used with pat_match_meth() only.
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9396 */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9397static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9398smp_fetch_meth(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9399{
9400 int meth;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9401 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9402
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9403 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9404
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9405 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9406 meth = txn->meth;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9407 smp->data.type = SMP_T_METH;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9408 smp->data.u.meth.meth = meth;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9409 if (meth == HTTP_METH_OTHER) {
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9410 if (txn->rsp.msg_state != HTTP_MSG_RPBEFORE)
9411 /* ensure the indexes are not affected */
9412 return 0;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9413 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9414 smp->data.u.meth.str.len = txn->req.sl.rq.m_l;
9415 smp->data.u.meth.str.str = txn->req.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9416 }
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9417 smp->flags |= SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9418 return 1;
9419}
9420
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9421/* See above how the method is stored in the global pattern */
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9422static struct pattern *pat_match_meth(struct sample *smp, struct pattern_expr *expr, int fill)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9423{
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9424 int icase;
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9425 struct pattern_list *lst;
9426 struct pattern *pattern;
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9427
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9428 list_for_each_entry(lst, &expr->patterns, list) {
9429 pattern = &lst->pat;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9430
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9431 /* well-known method */
9432 if (pattern->val.i != HTTP_METH_OTHER) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9433 if (smp->data.u.meth.meth == pattern->val.i)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9434 return pattern;
9435 else
9436 continue;
9437 }
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9438
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9439 /* Other method, we must compare the strings */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9440 if (pattern->len != smp->data.u.meth.str.len)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9441 continue;
9442
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9443 icase = expr->mflags & PAT_MF_IGNORE_CASE;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9444 if ((icase && strncasecmp(pattern->ptr.str, smp->data.u.meth.str.str, smp->data.u.meth.str.len) == 0) ||
9445 (!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]9446 return pattern;
9447 }
9448 return NULL;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9449}
9450
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9451static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9452smp_fetch_rqver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9453{
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9454 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9455 char *ptr;
9456 int len;
9457
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9458 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9459
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9460 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9461 len = txn->req.sl.rq.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9462 ptr = txn->req.chn->buf->p + txn->req.sl.rq.v;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9463
9464 while ((len-- > 0) && (*ptr++ != '/'));
9465 if (len <= 0)
9466 return 0;
9467
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9468 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9469 smp->data.u.str.str = ptr;
9470 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9471
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9472 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9473 return 1;
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_stver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9478{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[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
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9485 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9486 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9487 return 0;
9488
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9489 len = txn->rsp.sl.st.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9490 ptr = txn->rsp.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9491
9492 while ((len-- > 0) && (*ptr++ != '/'));
9493 if (len <= 0)
9494 return 0;
9495
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9496 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9497 smp->data.u.str.str = ptr;
9498 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9499
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9500 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9501 return 1;
9502}
9503
9504/* 3. Check on Status Code. We manipulate integers here. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9505static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9506smp_fetch_stcode(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9507{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9508 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9509 char *ptr;
9510 int len;
9511
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9512 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9513
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9514 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9515 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9516 return 0;
9517
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9518 len = txn->rsp.sl.st.c_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9519 ptr = txn->rsp.chn->buf->p + txn->rsp.sl.st.c;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9520
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9521 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9522 smp->data.u.sint = __strl2ui(ptr, len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9523 smp->flags = SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9524 return 1;
9525}
9526
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9527static int
9528smp_fetch_uniqueid(const struct arg *args, struct sample *smp, const char *kw, void *private)
9529{
9530 if (LIST_ISEMPTY(&smp->sess->fe->format_unique_id))
9531 return 0;
9532
9533 if (!smp->strm->unique_id) {
9534 if ((smp->strm->unique_id = pool_alloc2(pool2_uniqueid)) == NULL)
9535 return 0;
9536 smp->strm->unique_id[0] = '\0';
9537 }
9538 smp->data.u.str.len = build_logline(smp->strm, smp->strm->unique_id,
9539 UNIQUEID_LEN, &smp->sess->fe->format_unique_id);
9540
9541 smp->data.type = SMP_T_STR;
9542 smp->data.u.str.str = smp->strm->unique_id;
9543 smp->flags = SMP_F_CONST;
9544 return 1;
9545}
9546
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]9547/* Returns a string block containing all headers including the
9548 * empty line wich separes headers from the body. This is useful
9549 * form some headers analysis.
9550 */
9551static int
9552smp_fetch_hdrs(const struct arg *args, struct sample *smp, const char *kw, void *private)
9553{
9554 struct http_msg *msg;
9555 struct hdr_idx *idx;
9556 struct http_txn *txn;
9557
9558 CHECK_HTTP_MESSAGE_FIRST();
9559
9560 txn = smp->strm->txn;
9561 idx = &txn->hdr_idx;
9562 msg = &txn->req;
9563
9564 smp->data.type = SMP_T_STR;
9565 smp->data.u.str.str = msg->chn->buf->p + hdr_idx_first_pos(idx);
9566 smp->data.u.str.len = msg->eoh - hdr_idx_first_pos(idx) + 1 +
9567 (msg->chn->buf->p[msg->eoh] == '\r');
9568
9569 return 1;
9570}
9571
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9572/* Returns the header request in a length/value encoded format.
9573 * This is useful for exchanges with the SPOE.
9574 *
9575 * A "length value" is a multibyte code encoding numbers. It uses the
9576 * SPOE format. The encoding is the following:
9577 *
9578 * Each couple "header name" / "header value" is composed
9579 * like this:
9580 * "length value" "header name bytes"
9581 * "length value" "header value bytes"
9582 * When the last header is reached, the header name and the header
9583 * value are empty. Their length are 0
9584 */
9585static int
9586smp_fetch_hdrs_bin(const struct arg *args, struct sample *smp, const char *kw, void *private)
9587{
9588 struct http_msg *msg;
9589 struct chunk *temp;
9590 struct hdr_idx *idx;
9591 const char *cur_ptr, *cur_next, *p;
9592 int old_idx, cur_idx;
9593 struct hdr_idx_elem *cur_hdr;
9594 const char *hn, *hv;
9595 int hnl, hvl;
9596 int ret;
9597 struct http_txn *txn;
9598 char *buf;
9599 char *end;
9600
9601 CHECK_HTTP_MESSAGE_FIRST();
9602
9603 temp = get_trash_chunk();
9604 buf = temp->str;
9605 end = temp->str + temp->size;
9606
9607 txn = smp->strm->txn;
9608 idx = &txn->hdr_idx;
9609 msg = &txn->req;
9610
9611 /* Build array of headers. */
9612 old_idx = 0;
9613 cur_next = msg->chn->buf->p + hdr_idx_first_pos(idx);
9614 while (1) {
9615 cur_idx = idx->v[old_idx].next;
9616 if (!cur_idx)
9617 break;
9618 old_idx = cur_idx;
9619
9620 cur_hdr = &idx->v[cur_idx];
9621 cur_ptr = cur_next;
9622 cur_next = cur_ptr + cur_hdr->len + cur_hdr->cr + 1;
9623
9624 /* Now we have one full header at cur_ptr of len cur_hdr->len,
9625 * and the next header starts at cur_next. We'll check
9626 * this header in the list as well as against the default
9627 * rule.
9628 */
9629
9630 /* look for ': *'. */
9631 hn = cur_ptr;
9632 for (p = cur_ptr; p < cur_ptr + cur_hdr->len && *p != ':'; p++);
9633 if (p >= cur_ptr+cur_hdr->len)
9634 continue;
9635 hnl = p - hn;
9636 p++;
9637 while (p < cur_ptr + cur_hdr->len && (*p == ' ' || *p == '\t'))
9638 p++;
9639 if (p >= cur_ptr + cur_hdr->len)
9640 continue;
9641 hv = p;
9642 hvl = cur_ptr + cur_hdr->len-p;
9643
9644 /* encode the header name. */
9645 ret = encode_varint(hnl, &buf, end);
9646 if (ret == -1)
9647 return 0;
9648 if (buf + hnl > end)
9649 return 0;
9650 memcpy(buf, hn, hnl);
9651 buf += hnl;
9652
9653 /* encode and copy the value. */
9654 ret = encode_varint(hvl, &buf, end);
9655 if (ret == -1)
9656 return 0;
9657 if (buf + hvl > end)
9658 return 0;
9659 memcpy(buf, hv, hvl);
9660 buf += hvl;
9661 }
9662
9663 /* encode the end of the header list with empty
9664 * header name and header value.
9665 */
9666 ret = encode_varint(0, &buf, end);
9667 if (ret == -1)
9668 return 0;
9669 ret = encode_varint(0, &buf, end);
9670 if (ret == -1)
9671 return 0;
9672
9673 /* Initialise sample data which will be filled. */
9674 smp->data.type = SMP_T_BIN;
9675 smp->data.u.str.str = temp->str;
9676 smp->data.u.str.len = buf - temp->str;
9677 smp->data.u.str.size = temp->size;
9678
9679 return 1;
9680}
9681
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9682/* returns the longest available part of the body. This requires that the body
9683 * has been waited for using http-buffer-request.
9684 */
9685static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9686smp_fetch_body(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9687{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9688 struct http_msg *msg;
9689 unsigned long len;
9690 unsigned long block1;
9691 char *body;
9692 struct chunk *temp;
9693
9694 CHECK_HTTP_MESSAGE_FIRST();
9695
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9696 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9697 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9698 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9699 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9700
9701 len = http_body_bytes(msg);
9702 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
9703
9704 block1 = len;
9705 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
9706 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
9707
9708 if (block1 == len) {
9709 /* buffer is not wrapped (or empty) */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9710 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9711 smp->data.u.str.str = body;
9712 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9713 smp->flags = SMP_F_VOL_TEST | SMP_F_CONST;
9714 }
9715 else {
9716 /* buffer is wrapped, we need to defragment it */
9717 temp = get_trash_chunk();
9718 memcpy(temp->str, body, block1);
9719 memcpy(temp->str + block1, msg->chn->buf->data, len - block1);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9720 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9721 smp->data.u.str.str = temp->str;
9722 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9723 smp->flags = SMP_F_VOL_TEST;
9724 }
9725 return 1;
9726}
9727
9728
9729/* returns the available length of the body. This requires that the body
9730 * has been waited for using http-buffer-request.
9731 */
9732static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9733smp_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]9734{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9735 struct http_msg *msg;
9736
9737 CHECK_HTTP_MESSAGE_FIRST();
9738
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9739 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9740 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9741 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9742 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9743
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9744 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9745 smp->data.u.sint = http_body_bytes(msg);
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9746
9747 smp->flags = SMP_F_VOL_TEST;
9748 return 1;
9749}
9750
9751
9752/* returns the advertised length of the body, or the advertised size of the
9753 * chunks available in the buffer. This requires that the body has been waited
9754 * for using http-buffer-request.
9755 */
9756static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9757smp_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]9758{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9759 struct http_msg *msg;
9760
9761 CHECK_HTTP_MESSAGE_FIRST();
9762
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9763 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9764 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9765 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9766 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9767
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9768 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9769 smp->data.u.sint = msg->body_len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9770
9771 smp->flags = SMP_F_VOL_TEST;
9772 return 1;
9773}
9774
9775
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9776/* 4. Check on URL/URI. A pointer to the URI is stored. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9777static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9778smp_fetch_url(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9779{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9780 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9781
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9782 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9783
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9784 txn = smp->strm->txn;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9785 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9786 smp->data.u.str.len = txn->req.sl.rq.u_l;
9787 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]9788 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9789 return 1;
9790}
9791
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9792static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9793smp_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]9794{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9795 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]9796 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9797
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9798 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9799
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9800 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]9801 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]9802 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
Willy Tarreauf4362b32011-12-16 17:49:52 +0100[diff] [blame]9803 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9804
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9805 smp->data.type = SMP_T_IPV4;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9806 smp->data.u.ipv4 = ((struct sockaddr_in *)&addr)->sin_addr;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9807 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9808 return 1;
9809}
9810
9811static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9812smp_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]9813{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9814 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]9815 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9816
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9817 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9818
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9819 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]9820 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]9821 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
9822 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9823
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9824 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9825 smp->data.u.sint = ntohs(((struct sockaddr_in *)&addr)->sin_port);
Willy Tarreau21e5b0e2012-04-23 19:25:44 +0200[diff] [blame]9826 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9827 return 1;
9828}
9829
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9830/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
9831 * Accepts an optional argument of type string containing the header field name,
9832 * and an optional argument of type signed or unsigned integer to request an
9833 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9834 * headers are considered from the first one. It does not stop on commas and
9835 * returns full lines instead (useful for User-Agent or Date for example).
9836 */
9837static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9838smp_fetch_fhdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9839{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9840 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9841 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9842 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9843 int occ = 0;
9844 const char *name_str = NULL;
9845 int name_len = 0;
9846
9847 if (!ctx) {
9848 /* first call */
9849 ctx = &static_hdr_ctx;
9850 ctx->idx = 0;
9851 smp->ctx.a[0] = ctx;
9852 }
9853
9854 if (args) {
9855 if (args[0].type != ARGT_STR)
9856 return 0;
9857 name_str = args[0].data.str.str;
9858 name_len = args[0].data.str.len;
9859
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]9860 if (args[1].type == ARGT_SINT)
9861 occ = args[1].data.sint;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9862 }
9863
9864 CHECK_HTTP_MESSAGE_FIRST();
9865
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9866 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9867 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]9868
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9869 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
9870 /* search for header from the beginning */
9871 ctx->idx = 0;
9872
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9873 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9874 /* no explicit occurrence and single fetch => last header by default */
9875 occ = -1;
9876
9877 if (!occ)
9878 /* prepare to report multiple occurrences for ACL fetches */
9879 smp->flags |= SMP_F_NOT_LAST;
9880
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9881 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9882 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9883 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]9884 return 1;
9885
9886 smp->flags &= ~SMP_F_NOT_LAST;
9887 return 0;
9888}
9889
9890/* 6. Check on HTTP header count. The number of occurrences is returned.
9891 * Accepts exactly 1 argument of type string. It does not stop on commas and
9892 * returns full lines instead (useful for User-Agent or Date for example).
9893 */
9894static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9895smp_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]9896{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9897 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9898 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9899 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9900 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]9901 const char *name = NULL;
9902 int len = 0;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9903
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]9904 if (args && args->type == ARGT_STR) {
9905 name = args->data.str.str;
9906 len = args->data.str.len;
9907 }
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9908
9909 CHECK_HTTP_MESSAGE_FIRST();
9910
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9911 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9912 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]9913
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9914 ctx.idx = 0;
9915 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]9916 while (http_find_full_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9917 cnt++;
9918
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9919 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9920 smp->data.u.sint = cnt;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9921 smp->flags = SMP_F_VOL_HDR;
9922 return 1;
9923}
9924
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9925static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9926smp_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]9927{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9928 struct hdr_idx *idx;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9929 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9930 const struct http_msg *msg;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9931 struct chunk *temp;
9932 char del = ',';
9933
9934 if (args && args->type == ARGT_STR)
9935 del = *args[0].data.str.str;
9936
9937 CHECK_HTTP_MESSAGE_FIRST();
9938
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9939 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9940 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]9941
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9942 temp = get_trash_chunk();
9943
9944 ctx.idx = 0;
9945 while (http_find_next_header(msg->chn->buf->p, idx, &ctx)) {
9946 if (temp->len)
9947 temp->str[temp->len++] = del;
9948 memcpy(temp->str + temp->len, ctx.line, ctx.del);
9949 temp->len += ctx.del;
9950 }
9951
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9952 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9953 smp->data.u.str.str = temp->str;
9954 smp->data.u.str.len = temp->len;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9955 smp->flags = SMP_F_VOL_HDR;
9956 return 1;
9957}
9958
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9959/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
9960 * Accepts an optional argument of type string containing the header field name,
9961 * and an optional argument of type signed or unsigned integer to request an
9962 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9963 * headers are considered from the first one.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9964 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9965static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9966smp_fetch_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9967{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9968 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]9969 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9970 const struct http_msg *msg;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9971 int occ = 0;
9972 const char *name_str = NULL;
9973 int name_len = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]9974
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]9975 if (!ctx) {
9976 /* first call */
9977 ctx = &static_hdr_ctx;
9978 ctx->idx = 0;
Willy Tarreauffb6f082013-04-02 23:16:53 +0200[diff] [blame]9979 smp->ctx.a[0] = ctx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]9980 }
9981
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9982 if (args) {
9983 if (args[0].type != ARGT_STR)
9984 return 0;
9985 name_str = args[0].data.str.str;
9986 name_len = args[0].data.str.len;
9987
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]9988 if (args[1].type == ARGT_SINT)
9989 occ = args[1].data.sint;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9990 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]9991
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]9992 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9993
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9994 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9995 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]9996
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9997 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9998 /* search for header from the beginning */
9999 ctx->idx = 0;
10000
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10001 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10002 /* no explicit occurrence and single fetch => last header by default */
10003 occ = -1;
10004
10005 if (!occ)
10006 /* prepare to report multiple occurrences for ACL fetches */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10007 smp->flags |= SMP_F_NOT_LAST;
Willy Tarreau664092c2011-12-16 19:11:42 +0100[diff] [blame]10008
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10009 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10010 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10011 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]10012 return 1;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10013
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10014 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10015 return 0;
10016}
10017
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10018/* 6. Check on HTTP header count. The number of occurrences is returned.
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10019 * Accepts exactly 1 argument of type string.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10020 */
10021static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10022smp_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]10023{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10024 struct hdr_idx *idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10025 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10026 const struct http_msg *msg;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10027 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10028 const char *name = NULL;
10029 int len = 0;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10030
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10031 if (args && args->type == ARGT_STR) {
10032 name = args->data.str.str;
10033 len = args->data.str.len;
10034 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10035
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10036 CHECK_HTTP_MESSAGE_FIRST();
10037
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10038 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10039 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]10040
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10041 ctx.idx = 0;
10042 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10043 while (http_find_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10044 cnt++;
10045
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10046 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10047 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10048 smp->flags = SMP_F_VOL_HDR;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10049 return 1;
10050}
10051
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10052/* Fetch an HTTP header's integer value. The integer value is returned. It
10053 * takes a mandatory argument of type string and an optional one of type int
10054 * to designate a specific occurrence. It returns an unsigned integer, which
10055 * may or may not be appropriate for everything.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10056 */
10057static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10058smp_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]10059{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10060 int ret = smp_fetch_hdr(args, smp, kw, private);
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10061
Willy Tarreauf853c462012-04-23 18:53:56 +0200[diff] [blame]10062 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10063 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10064 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]10065 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10066
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10067 return ret;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10068}
10069
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10070/* Fetch an HTTP header's IP value. takes a mandatory argument of type string
10071 * and an optional one of type int to designate a specific occurrence.
10072 * It returns an IPv4 or IPv6 address.
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10073 */
10074static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10075smp_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]10076{
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10077 int ret;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10078
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10079 while ((ret = smp_fetch_hdr(args, smp, kw, private)) > 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10080 if (url2ipv4((char *)smp->data.u.str.str, &smp->data.u.ipv4)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10081 smp->data.type = SMP_T_IPV4;
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10082 break;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10083 } else {
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10084 struct chunk *temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10085 if (smp->data.u.str.len < temp->size - 1) {
10086 memcpy(temp->str, smp->data.u.str.str, smp->data.u.str.len);
10087 temp->str[smp->data.u.str.len] = '\0';
10088 if (inet_pton(AF_INET6, temp->str, &smp->data.u.ipv6)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10089 smp->data.type = SMP_T_IPV6;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10090 break;
10091 }
10092 }
10093 }
10094
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10095 /* if the header doesn't match an IP address, fetch next one */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10096 if (!(smp->flags & SMP_F_NOT_LAST))
10097 return 0;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10098 }
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10099 return ret;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10100}
10101
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10102/* 8. Check on URI PATH. A pointer to the PATH is stored. The path starts at
10103 * the first '/' after the possible hostname, and ends before the possible '?'.
10104 */
10105static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10106smp_fetch_path(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10107{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10108 struct http_txn *txn;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10109 char *ptr, *end;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10110
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10111 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10112
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10113 txn = smp->strm->txn;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10114 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]10115 ptr = http_get_path(txn);
10116 if (!ptr)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10117 return 0;
10118
10119 /* OK, we got the '/' ! */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10120 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10121 smp->data.u.str.str = ptr;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10122
10123 while (ptr < end && *ptr != '?')
10124 ptr++;
10125
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10126 smp->data.u.str.len = ptr - smp->data.u.str.str;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10127 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10128 return 1;
10129}
10130
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10131/* This produces a concatenation of the first occurrence of the Host header
10132 * followed by the path component if it begins with a slash ('/'). This means
10133 * that '*' will not be added, resulting in exactly the first Host entry.
10134 * If no Host header is found, then the path is returned as-is. The returned
10135 * 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]10136 * The returned sample is of type string.
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10137 */
10138static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10139smp_fetch_base(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10140{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10141 struct http_txn *txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10142 char *ptr, *end, *beg;
10143 struct hdr_ctx ctx;
Willy Tarreau3caf2af2014-06-24 17:27:02 +0200[diff] [blame]10144 struct chunk *temp;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10145
10146 CHECK_HTTP_MESSAGE_FIRST();
10147
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10148 txn = smp->strm->txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10149 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10150 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]10151 return smp_fetch_path(args, smp, kw, private);
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10152
10153 /* 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]10154 temp = get_trash_chunk();
10155 memcpy(temp->str, ctx.line + ctx.val, ctx.vlen);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10156 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10157 smp->data.u.str.str = temp->str;
10158 smp->data.u.str.len = ctx.vlen;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10159
10160 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10161 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]10162 beg = http_get_path(txn);
10163 if (!beg)
10164 beg = end;
10165
10166 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10167
10168 if (beg < ptr && *beg == '/') {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10169 memcpy(smp->data.u.str.str + smp->data.u.str.len, beg, ptr - beg);
10170 smp->data.u.str.len += ptr - beg;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10171 }
10172
10173 smp->flags = SMP_F_VOL_1ST;
10174 return 1;
10175}
10176
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10177/* This produces a 32-bit hash of the concatenation of the first occurrence of
10178 * the Host header followed by the path component if it begins with a slash ('/').
10179 * This means that '*' will not be added, resulting in exactly the first Host
10180 * 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]10181 * is hashed using the path hash followed by a full avalanche hash and provides a
10182 * 32-bit integer value. This fetch is useful for tracking per-path activity on
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10183 * high-traffic sites without having to store whole paths.
10184 */
Thierry FOURNIER055b9d52014-07-15 16:11:07 +0200[diff] [blame]10185int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10186smp_fetch_base32(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10187{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10188 struct http_txn *txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10189 struct hdr_ctx ctx;
10190 unsigned int hash = 0;
10191 char *ptr, *beg, *end;
10192 int len;
10193
10194 CHECK_HTTP_MESSAGE_FIRST();
10195
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10196 txn = smp->strm->txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10197 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10198 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]10199 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
10200 ptr = ctx.line + ctx.val;
10201 len = ctx.vlen;
10202 while (len--)
10203 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
10204 }
10205
10206 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10207 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]10208 beg = http_get_path(txn);
10209 if (!beg)
10210 beg = end;
10211
10212 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10213
10214 if (beg < ptr && *beg == '/') {
10215 while (beg < ptr)
10216 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
10217 }
10218 hash = full_hash(hash);
10219
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10220 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10221 smp->data.u.sint = hash;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10222 smp->flags = SMP_F_VOL_1ST;
10223 return 1;
10224}
10225
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10226/* 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]10227 * path as returned by smp_fetch_base32(). The idea is to have per-source and
10228 * per-path counters. The result is a binary block from 8 to 20 bytes depending
10229 * on the source address length. The path hash is stored before the address so
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10230 * that in environments where IPv6 is insignificant, truncating the output to
10231 * 8 bytes would still work.
10232 */
10233static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10234smp_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]10235{
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10236 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10237 struct connection *cli_conn = objt_conn(smp->sess->origin);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10238
10239 if (!cli_conn)
10240 return 0;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10241
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10242 if (!smp_fetch_base32(args, smp, kw, private))
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10243 return 0;
10244
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10245 temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10246 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
Willy Tarreau5ad6e1d2014-07-15 21:34:06 +0200[diff] [blame]10247 temp->len += sizeof(unsigned int);
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10248
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10249 switch (cli_conn->addr.from.ss_family) {
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10250 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10251 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]10252 temp->len += 4;
10253 break;
10254 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10255 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]10256 temp->len += 16;
10257 break;
10258 default:
10259 return 0;
10260 }
10261
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10262 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10263 smp->data.type = SMP_T_BIN;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10264 return 1;
10265}
10266
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10267/* Extracts the query string, which comes after the question mark '?'. If no
10268 * question mark is found, nothing is returned. Otherwise it returns a sample
10269 * of type string carrying the whole query string.
10270 */
10271static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10272smp_fetch_query(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10273{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10274 struct http_txn *txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10275 char *ptr, *end;
10276
10277 CHECK_HTTP_MESSAGE_FIRST();
10278
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10279 txn = smp->strm->txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10280 ptr = txn->req.chn->buf->p + txn->req.sl.rq.u;
10281 end = ptr + txn->req.sl.rq.u_l;
10282
10283 /* look up the '?' */
10284 do {
10285 if (ptr == end)
10286 return 0;
10287 } while (*ptr++ != '?');
10288
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10289 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10290 smp->data.u.str.str = ptr;
10291 smp->data.u.str.len = end - ptr;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10292 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
10293 return 1;
10294}
10295
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10296static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10297smp_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]10298{
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10299 /* Note: hdr_idx.v cannot be NULL in this ACL because the ACL is tagged
10300 * as a layer7 ACL, which involves automatic allocation of hdr_idx.
10301 */
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10302
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10303 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10304
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10305 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10306 smp->data.u.sint = 1;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10307 return 1;
10308}
10309
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10310/* return a valid test if the current request is the first one on the connection */
10311static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10312smp_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]10313{
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10314 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10315 smp->data.u.sint = !(smp->strm->txn->flags & TX_NOT_FIRST);
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10316 return 1;
10317}
10318
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10319/* Accepts exactly 1 argument of type userlist */
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10320static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10321smp_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]10322{
10323
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10324 if (!args || args->type != ARGT_USR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10325 return 0;
10326
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10327 CHECK_HTTP_MESSAGE_FIRST();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10328
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10329 if (!get_http_auth(smp->strm))
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10330 return 0;
10331
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10332 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10333 smp->data.u.sint = check_user(args->data.usr, smp->strm->txn->auth.user,
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10334 smp->strm->txn->auth.pass);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10335 return 1;
10336}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10337
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10338/* Accepts exactly 1 argument of type userlist */
10339static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10340smp_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]10341{
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10342 if (!args || args->type != ARGT_USR)
10343 return 0;
10344
10345 CHECK_HTTP_MESSAGE_FIRST();
10346
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10347 if (!get_http_auth(smp->strm))
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10348 return 0;
10349
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10350 /* if the user does not belong to the userlist or has a wrong password,
10351 * report that it unconditionally does not match. Otherwise we return
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10352 * a string containing the username.
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10353 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10354 if (!check_user(args->data.usr, smp->strm->txn->auth.user,
10355 smp->strm->txn->auth.pass))
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10356 return 0;
10357
10358 /* pat_match_auth() will need the user list */
10359 smp->ctx.a[0] = args->data.usr;
10360
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10361 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10362 smp->flags = SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10363 smp->data.u.str.str = smp->strm->txn->auth.user;
10364 smp->data.u.str.len = strlen(smp->strm->txn->auth.user);
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10365
10366 return 1;
10367}
10368
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10369/* Try to find the next occurrence of a cookie name in a cookie header value.
10370 * The lookup begins at <hdr>. The pointer and size of the next occurrence of
10371 * the cookie value is returned into *value and *value_l, and the function
10372 * returns a pointer to the next pointer to search from if the value was found.
10373 * Otherwise if the cookie was not found, NULL is returned and neither value
10374 * nor value_l are touched. The input <hdr> string should first point to the
10375 * header's value, and the <hdr_end> pointer must point to the first character
10376 * not part of the value. <list> must be non-zero if value may represent a list
10377 * of values (cookie headers). This makes it faster to abort parsing when no
10378 * list is expected.
10379 */
David Carlier4686f792015-09-25 14:10:50 +0100[diff] [blame]10380char *
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10381extract_cookie_value(char *hdr, const char *hdr_end,
10382 char *cookie_name, size_t cookie_name_l, int list,
Willy Tarreau3fb818c2012-04-11 17:21:08 +0200[diff] [blame]10383 char **value, int *value_l)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10384{
10385 char *equal, *att_end, *att_beg, *val_beg, *val_end;
10386 char *next;
10387
10388 /* we search at least a cookie name followed by an equal, and more
10389 * generally something like this :
10390 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
10391 */
10392 for (att_beg = hdr; att_beg + cookie_name_l + 1 < hdr_end; att_beg = next + 1) {
10393 /* Iterate through all cookies on this line */
10394
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10395 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10396 att_beg++;
10397
10398 /* find att_end : this is the first character after the last non
10399 * space before the equal. It may be equal to hdr_end.
10400 */
10401 equal = att_end = att_beg;
10402
10403 while (equal < hdr_end) {
10404 if (*equal == '=' || *equal == ';' || (list && *equal == ','))
10405 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10406 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10407 continue;
10408 att_end = equal;
10409 }
10410
10411 /* here, <equal> points to '=', a delimitor or the end. <att_end>
10412 * is between <att_beg> and <equal>, both may be identical.
10413 */
10414
10415 /* look for end of cookie if there is an equal sign */
10416 if (equal < hdr_end && *equal == '=') {
10417 /* look for the beginning of the value */
10418 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10419 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10420 val_beg++;
10421
10422 /* find the end of the value, respecting quotes */
10423 next = find_cookie_value_end(val_beg, hdr_end);
10424
10425 /* make val_end point to the first white space or delimitor after the value */
10426 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10427 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10428 val_end--;
10429 } else {
10430 val_beg = val_end = next = equal;
10431 }
10432
10433 /* We have nothing to do with attributes beginning with '$'. However,
10434 * they will automatically be removed if a header before them is removed,
10435 * since they're supposed to be linked together.
10436 */
10437 if (*att_beg == '$')
10438 continue;
10439
10440 /* Ignore cookies with no equal sign */
10441 if (equal == next)
10442 continue;
10443
10444 /* Now we have the cookie name between att_beg and att_end, and
10445 * its value between val_beg and val_end.
10446 */
10447
10448 if (att_end - att_beg == cookie_name_l &&
10449 memcmp(att_beg, cookie_name, cookie_name_l) == 0) {
10450 /* let's return this value and indicate where to go on from */
10451 *value = val_beg;
10452 *value_l = val_end - val_beg;
10453 return next + 1;
10454 }
10455
10456 /* Set-Cookie headers only have the name in the first attr=value part */
10457 if (!list)
10458 break;
10459 }
10460
10461 return NULL;
10462}
10463
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10464/* Fetch a captured HTTP request header. The index is the position of
10465 * the "capture" option in the configuration file
10466 */
10467static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10468smp_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]10469{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10470 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10471 int idx;
10472
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10473 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10474 return 0;
10475
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10476 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10477
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10478 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]10479 return 0;
10480
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10481 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10482 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10483 smp->data.u.str.str = smp->strm->req_cap[idx];
10484 smp->data.u.str.len = strlen(smp->strm->req_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10485
10486 return 1;
10487}
10488
10489/* Fetch a captured HTTP response 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_res(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_rsp_cap - 1) || smp->strm->res_cap == NULL || smp->strm->res_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->res_cap[idx];
10509 smp->data.u.str.len = strlen(smp->strm->res_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10510
10511 return 1;
10512}
10513
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10514/* Extracts the METHOD in the HTTP request, the txn->uri should be filled before the call */
10515static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10516smp_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]10517{
10518 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10519 struct http_txn *txn = smp->strm->txn;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10520 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10521
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10522 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10523 return 0;
10524
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10525 ptr = txn->uri;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10526
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10527 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10528 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10529
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10530 temp = get_trash_chunk();
10531 temp->str = txn->uri;
10532 temp->len = ptr - txn->uri;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10533 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10534 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10535 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10536
10537 return 1;
10538
10539}
10540
10541/* Extracts the path in the HTTP request, the txn->uri should be filled before the call */
10542static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10543smp_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]10544{
10545 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10546 struct http_txn *txn = smp->strm->txn;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10547 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10548
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10549 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10550 return 0;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10551
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10552 ptr = txn->uri;
10553
10554 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10555 ptr++;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10556
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10557 if (!*ptr)
10558 return 0;
10559
10560 ptr++; /* skip the space */
10561
10562 temp = get_trash_chunk();
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10563 ptr = temp->str = http_get_path_from_string(ptr);
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10564 if (!ptr)
10565 return 0;
10566 while (*ptr != ' ' && *ptr != '\0') /* find space after URI */
10567 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10568
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10569 smp->data.u.str = *temp;
10570 smp->data.u.str.len = ptr - temp->str;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10571 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10572 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10573
10574 return 1;
10575}
10576
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10577/* Retrieves the HTTP version from the request (either 1.0 or 1.1) and emits it
10578 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10579 */
10580static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10581smp_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]10582{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10583 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10584
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10585 if (!txn || txn->req.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10586 return 0;
10587
10588 if (txn->req.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10589 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10590 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10591 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10592
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10593 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10594 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10595 smp->flags = SMP_F_CONST;
10596 return 1;
10597
10598}
10599
10600/* Retrieves the HTTP version from the response (either 1.0 or 1.1) and emits it
10601 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10602 */
10603static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10604smp_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]10605{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10606 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10607
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10608 if (!txn || txn->rsp.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10609 return 0;
10610
10611 if (txn->rsp.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10612 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10613 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10614 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10615
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10616 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10617 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10618 smp->flags = SMP_F_CONST;
10619 return 1;
10620
10621}
10622
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10623
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10624/* Iterate over all cookies present in a message. The context is stored in
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10625 * 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]10626 * 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]10627 * the direction, multiple cookies may be parsed on the same line or not.
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10628 * 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]10629 * Accepts exactly 1 argument of type string. If the input options indicate
10630 * that no iterating is desired, then only last value is fetched if any.
William Lallemand07c8b242014-05-02 17:11:07 +0200[diff] [blame]10631 * The returned sample is of type CSTR. Can be used to parse cookies in other
10632 * files.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10633 */
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10634int 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]10635{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10636 struct http_txn *txn;
10637 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10638 struct hdr_ctx *ctx = smp->ctx.a[2];
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10639 const struct http_msg *msg;
10640 const char *hdr_name;
10641 int hdr_name_len;
10642 char *sol;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10643 int occ = 0;
10644 int found = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10645
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10646 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10647 return 0;
10648
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10649 if (!ctx) {
10650 /* first call */
10651 ctx = &static_hdr_ctx;
10652 ctx->idx = 0;
10653 smp->ctx.a[2] = ctx;
10654 }
10655
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10656 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10657
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10658 txn = smp->strm->txn;
10659 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10660
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10661 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10662 msg = &txn->req;
10663 hdr_name = "Cookie";
10664 hdr_name_len = 6;
10665 } else {
10666 msg = &txn->rsp;
10667 hdr_name = "Set-Cookie";
10668 hdr_name_len = 10;
10669 }
10670
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10671 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10672 /* no explicit occurrence and single fetch => last cookie by default */
10673 occ = -1;
10674
10675 /* OK so basically here, either we want only one value and it's the
10676 * last one, or we want to iterate over all of them and we fetch the
10677 * next one.
10678 */
10679
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10680 sol = msg->chn->buf->p;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10681 if (!(smp->flags & SMP_F_NOT_LAST)) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10682 /* search for the header from the beginning, we must first initialize
10683 * the search parameters.
10684 */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10685 smp->ctx.a[0] = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10686 ctx->idx = 0;
10687 }
10688
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10689 smp->flags |= SMP_F_VOL_HDR;
10690
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10691 while (1) {
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10692 /* Note: smp->ctx.a[0] == NULL every time we need to fetch a new header */
10693 if (!smp->ctx.a[0]) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10694 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, ctx))
10695 goto out;
10696
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10697 if (ctx->vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10698 continue;
10699
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10700 smp->ctx.a[0] = ctx->line + ctx->val;
10701 smp->ctx.a[1] = smp->ctx.a[0] + ctx->vlen;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10702 }
10703
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10704 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10705 smp->flags |= SMP_F_CONST;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10706 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]10707 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10708 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10709 &smp->data.u.str.str,
10710 &smp->data.u.str.len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10711 if (smp->ctx.a[0]) {
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10712 found = 1;
10713 if (occ >= 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10714 /* one value was returned into smp->data.u.str.{str,len} */
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10715 smp->flags |= SMP_F_NOT_LAST;
10716 return 1;
10717 }
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10718 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10719 /* if we're looking for last occurrence, let's loop */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10720 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10721 /* all cookie headers and values were scanned. If we're looking for the
10722 * last occurrence, we may return it now.
10723 */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10724 out:
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10725 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10726 return found;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10727}
10728
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10729/* Iterate over all cookies present in a request to count how many occurrences
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10730 * 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]10731 * multiple cookies may be parsed on the same line. The returned sample is of
10732 * type UINT. Accepts exactly 1 argument of type string.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10733 */
10734static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10735smp_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]10736{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10737 struct http_txn *txn;
10738 struct hdr_idx *idx;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10739 struct hdr_ctx ctx;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10740 const struct http_msg *msg;
10741 const char *hdr_name;
10742 int hdr_name_len;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10743 int cnt;
10744 char *val_beg, *val_end;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10745 char *sol;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10746
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10747 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10748 return 0;
10749
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10750 CHECK_HTTP_MESSAGE_FIRST();
10751
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10752 txn = smp->strm->txn;
10753 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10754
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10755 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10756 msg = &txn->req;
10757 hdr_name = "Cookie";
10758 hdr_name_len = 6;
10759 } else {
10760 msg = &txn->rsp;
10761 hdr_name = "Set-Cookie";
10762 hdr_name_len = 10;
10763 }
10764
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10765 sol = msg->chn->buf->p;
Willy Tarreau46787ed2012-04-11 17:28:40 +0200[diff] [blame]10766 val_end = val_beg = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10767 ctx.idx = 0;
10768 cnt = 0;
10769
10770 while (1) {
10771 /* Note: val_beg == NULL every time we need to fetch a new header */
10772 if (!val_beg) {
10773 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, &ctx))
10774 break;
10775
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10776 if (ctx.vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10777 continue;
10778
10779 val_beg = ctx.line + ctx.val;
10780 val_end = val_beg + ctx.vlen;
10781 }
10782
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10783 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10784 smp->flags |= SMP_F_CONST;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10785 while ((val_beg = extract_cookie_value(val_beg, val_end,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10786 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10787 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10788 &smp->data.u.str.str,
10789 &smp->data.u.str.len))) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10790 cnt++;
10791 }
10792 }
10793
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10794 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10795 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10796 smp->flags |= SMP_F_VOL_HDR;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10797 return 1;
10798}
10799
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]10800/* Fetch an cookie's integer value. The integer value is returned. It
10801 * takes a mandatory argument of type string. It relies on smp_fetch_cookie().
10802 */
10803static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10804smp_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]10805{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10806 int ret = smp_fetch_cookie(args, smp, kw, private);
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]10807
10808 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10809 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10810 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]10811 }
10812
10813 return ret;
10814}
10815
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10816/************************************************************************/
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]10817/* The code below is dedicated to sample fetches */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]10818/************************************************************************/
10819
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10820/*
10821 * Given a path string and its length, find the position of beginning of the
10822 * query string. Returns NULL if no query string is found in the path.
10823 *
10824 * Example: if path = "/foo/bar/fubar?yo=mama;ye=daddy", and n = 22:
10825 *
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10826 * find_query_string(path, n, '?') points to "yo=mama;ye=daddy" string.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10827 */
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10828static inline char *find_param_list(char *path, size_t path_l, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10829{
10830 char *p;
Emeric Brun485479d2010-09-23 18:02:19 +0200[diff] [blame]10831
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10832 p = memchr(path, delim, path_l);
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10833 return p ? p + 1 : NULL;
10834}
10835
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10836static inline int is_param_delimiter(char c, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10837{
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10838 return c == '&' || c == ';' || c == delim;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10839}
10840
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10841/* after increasing a pointer value, it can exceed the first buffer
10842 * size. This function transform the value of <ptr> according with
10843 * the expected position. <chunks> is an array of the one or two
10844 * avalaible chunks. The first value is the start of the first chunk,
10845 * the second value if the end+1 of the first chunks. The third value
10846 * is NULL or the start of the second chunk and the fourth value is
10847 * the end+1 of the second chunk. The function returns 1 if does a
10848 * wrap, else returns 0.
10849 */
10850static inline int fix_pointer_if_wrap(const char **chunks, const char **ptr)
10851{
10852 if (*ptr < chunks[1])
10853 return 0;
10854 if (!chunks[2])
10855 return 0;
10856 *ptr = chunks[2] + ( *ptr - chunks[1] );
10857 return 1;
10858}
10859
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10860/*
10861 * Given a url parameter, find the starting position of the first occurence,
10862 * or NULL if the parameter is not found.
10863 *
10864 * Example: if query_string is "yo=mama;ye=daddy" and url_param_name is "ye",
10865 * the function will return query_string+8.
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10866 *
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10867 * Warning: this function returns a pointer that can point to the first chunk
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10868 * or the second chunk. The caller must be check the position before using the
10869 * result.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10870 */
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10871static const char *
10872find_url_param_pos(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10873 const char* url_param_name, size_t url_param_name_l,
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10874 char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10875{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10876 const char *pos, *last, *equal;
10877 const char **bufs = chunks;
10878 int l1, l2;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10879
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10880
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10881 pos = bufs[0];
10882 last = bufs[1];
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10883 while (pos < last) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10884 /* Check the equal. */
10885 equal = pos + url_param_name_l;
10886 if (fix_pointer_if_wrap(chunks, &equal)) {
10887 if (equal >= chunks[3])
10888 return NULL;
10889 } else {
10890 if (equal >= chunks[1])
10891 return NULL;
10892 }
10893 if (*equal == '=') {
10894 if (pos + url_param_name_l > last) {
10895 /* process wrap case, we detect a wrap. In this case, the
10896 * comparison is performed in two parts.
10897 */
10898
10899 /* This is the end, we dont have any other chunk. */
10900 if (bufs != chunks || !bufs[2])
10901 return NULL;
10902
10903 /* Compute the length of each part of the comparison. */
10904 l1 = last - pos;
10905 l2 = url_param_name_l - l1;
10906
10907 /* The second buffer is too short to contain the compared string. */
10908 if (bufs[2] + l2 > bufs[3])
10909 return NULL;
10910
10911 if (memcmp(pos, url_param_name, l1) == 0 &&
10912 memcmp(bufs[2], url_param_name+l1, l2) == 0)
10913 return pos;
10914
10915 /* Perform wrapping and jump the string who fail the comparison. */
10916 bufs += 2;
10917 pos = bufs[0] + l2;
10918 last = bufs[1];
10919
10920 } else {
10921 /* process a simple comparison. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10922 if (memcmp(pos, url_param_name, url_param_name_l) == 0)
10923 return pos;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10924 pos += url_param_name_l + 1;
10925 if (fix_pointer_if_wrap(chunks, &pos))
10926 last = bufs[2];
10927 }
10928 }
10929
10930 while (1) {
10931 /* Look for the next delimiter. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10932 while (pos < last && !is_param_delimiter(*pos, delim))
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10933 pos++;
10934 if (pos < last)
10935 break;
10936 /* process buffer wrapping. */
10937 if (bufs != chunks || !bufs[2])
10938 return NULL;
10939 bufs += 2;
10940 pos = bufs[0];
10941 last = bufs[1];
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10942 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10943 pos++;
10944 }
10945 return NULL;
10946}
10947
10948/*
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]10949 * Given a url parameter name and a query string, find the next value.
10950 * An empty url_param_name matches the first available parameter.
10951 * If the parameter is found, 1 is returned and *vstart / *vend are updated to
10952 * respectively provide a pointer to the value and its end.
10953 * Otherwise, 0 is returned and vstart/vend are not modified.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10954 */
10955static int
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10956find_next_url_param(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10957 const char* url_param_name, size_t url_param_name_l,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10958 const char **vstart, const char **vend, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10959{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10960 const char *arg_start, *qs_end;
10961 const char *value_start, *value_end;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10962
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10963 arg_start = chunks[0];
10964 qs_end = chunks[1];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10965 if (url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10966 /* Looks for an argument name. */
10967 arg_start = find_url_param_pos(chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10968 url_param_name, url_param_name_l,
10969 delim);
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10970 /* Check for wrapping. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10971 if (arg_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10972 qs_end = chunks[3];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10973 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10974 if (!arg_start)
10975 return 0;
10976
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10977 if (!url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10978 while (1) {
10979 /* looks for the first argument. */
10980 value_start = memchr(arg_start, '=', qs_end - arg_start);
10981 if (!value_start) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10982 /* Check for wrapping. */
10983 if (arg_start >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10984 arg_start < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10985 chunks[2]) {
10986 arg_start = chunks[2];
10987 qs_end = chunks[3];
10988 continue;
10989 }
10990 return 0;
10991 }
10992 break;
10993 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10994 value_start++;
10995 }
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10996 else {
10997 /* Jump the argument length. */
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10998 value_start = arg_start + url_param_name_l + 1;
10999
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11000 /* Check for pointer wrapping. */
11001 if (fix_pointer_if_wrap(chunks, &value_start)) {
11002 /* Update the end pointer. */
11003 qs_end = chunks[3];
11004
11005 /* Check for overflow. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11006 if (value_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11007 return 0;
11008 }
11009 }
11010
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11011 value_end = value_start;
11012
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11013 while (1) {
11014 while ((value_end < qs_end) && !is_param_delimiter(*value_end, delim))
11015 value_end++;
11016 if (value_end < qs_end)
11017 break;
11018 /* process buffer wrapping. */
11019 if (value_end >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11020 value_end < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11021 chunks[2]) {
11022 value_end = chunks[2];
11023 qs_end = chunks[3];
11024 continue;
11025 }
11026 break;
11027 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11028
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11029 *vstart = value_start;
11030 *vend = value_end;
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11031 return 1;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11032}
11033
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11034/* This scans a URL-encoded query string. It takes an optionally wrapping
11035 * string whose first contigous chunk has its beginning in ctx->a[0] and end
11036 * in ctx->a[1], and the optional second part in (ctx->a[2]..ctx->a[3]). The
11037 * pointers are updated for next iteration before leaving.
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11038 */
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11039static int
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11040smp_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]11041{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11042 const char *vstart, *vend;
11043 struct chunk *temp;
11044 const char **chunks = (const char **)smp->ctx.a;
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11045
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11046 if (!find_next_url_param(chunks,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11047 name, name_len,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11048 &vstart, &vend,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11049 delim))
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11050 return 0;
11051
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11052 /* Create sample. If the value is contiguous, return the pointer as CONST,
11053 * if the value is wrapped, copy-it in a buffer.
11054 */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11055 smp->data.type = SMP_T_STR;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11056 if (chunks[2] &&
11057 vstart >= chunks[0] && vstart <= chunks[1] &&
11058 vend >= chunks[2] && vend <= chunks[3]) {
11059 /* Wrapped case. */
11060 temp = get_trash_chunk();
11061 memcpy(temp->str, vstart, chunks[1] - vstart);
11062 memcpy(temp->str + ( chunks[1] - vstart ), chunks[2], vend - chunks[2]);
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11063 smp->data.u.str.str = temp->str;
11064 smp->data.u.str.len = ( chunks[1] - vstart ) + ( vend - chunks[2] );
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11065 } else {
11066 /* Contiguous case. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11067 smp->data.u.str.str = (char *)vstart;
11068 smp->data.u.str.len = vend - vstart;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11069 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
11070 }
11071
11072 /* Update context, check wrapping. */
11073 chunks[0] = vend;
11074 if (chunks[2] && vend >= chunks[2] && vend <= chunks[3]) {
11075 chunks[1] = chunks[3];
11076 chunks[2] = NULL;
11077 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11078
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11079 if (chunks[0] < chunks[1])
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11080 smp->flags |= SMP_F_NOT_LAST;
11081
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11082 return 1;
11083}
11084
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11085/* This function iterates over each parameter of the query string. It uses
11086 * 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]11087 * parameter. Since it uses smp_fetch_param(), ctx->a[2..3] are both NULL.
11088 * An optional parameter name is passed in args[0], otherwise any parameter is
11089 * considered. It supports an optional delimiter argument for the beginning of
11090 * the string in args[1], which defaults to "?".
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11091 */
11092static int
11093smp_fetch_url_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11094{
11095 struct http_msg *msg;
11096 char delim = '?';
11097 const char *name;
11098 int name_len;
11099
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11100 if (!args ||
11101 (args[0].type && args[0].type != ARGT_STR) ||
11102 (args[1].type && args[1].type != ARGT_STR))
11103 return 0;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11104
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11105 name = "";
11106 name_len = 0;
11107 if (args->type == ARGT_STR) {
11108 name = args->data.str.str;
11109 name_len = args->data.str.len;
11110 }
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11111
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11112 if (args[1].type)
11113 delim = *args[1].data.str.str;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11114
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11115 if (!smp->ctx.a[0]) { // first call, find the query string
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11116 CHECK_HTTP_MESSAGE_FIRST();
11117
11118 msg = &smp->strm->txn->req;
11119
11120 smp->ctx.a[0] = find_param_list(msg->chn->buf->p + msg->sl.rq.u,
11121 msg->sl.rq.u_l, delim);
11122 if (!smp->ctx.a[0])
11123 return 0;
11124
11125 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]11126
11127 /* Assume that the context is filled with NULL pointer
11128 * before the first call.
11129 * smp->ctx.a[2] = NULL;
11130 * smp->ctx.a[3] = NULL;
11131 */
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11132 }
11133
11134 return smp_fetch_param(delim, name, name_len, args, smp, kw, private);
11135}
11136
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11137/* This function iterates over each parameter of the body. This requires
11138 * that the body has been waited for using http-buffer-request. It uses
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11139 * ctx->a[0] and ctx->a[1] to store the beginning and end of the first
11140 * contigous part of the body, and optionally ctx->a[2..3] to reference the
11141 * optional second part if the body wraps at the end of the buffer. An optional
11142 * parameter name is passed in args[0], otherwise any parameter is considered.
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11143 */
11144static int
11145smp_fetch_body_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11146{
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11147 struct http_msg *msg;
11148 unsigned long len;
11149 unsigned long block1;
11150 char *body;
11151 const char *name;
11152 int name_len;
11153
11154 if (!args || (args[0].type && args[0].type != ARGT_STR))
11155 return 0;
11156
11157 name = "";
11158 name_len = 0;
11159 if (args[0].type == ARGT_STR) {
11160 name = args[0].data.str.str;
11161 name_len = args[0].data.str.len;
11162 }
11163
11164 if (!smp->ctx.a[0]) { // first call, find the query string
11165 CHECK_HTTP_MESSAGE_FIRST();
11166
11167 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11168 msg = &smp->strm->txn->req;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11169 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11170 msg = &smp->strm->txn->rsp;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11171
11172 len = http_body_bytes(msg);
11173 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
11174
11175 block1 = len;
11176 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
11177 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
11178
11179 if (block1 == len) {
11180 /* buffer is not wrapped (or empty) */
11181 smp->ctx.a[0] = body;
11182 smp->ctx.a[1] = body + len;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11183
11184 /* Assume that the context is filled with NULL pointer
11185 * before the first call.
11186 * smp->ctx.a[2] = NULL;
11187 * smp->ctx.a[3] = NULL;
11188 */
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11189 }
11190 else {
11191 /* buffer is wrapped, we need to defragment it */
11192 smp->ctx.a[0] = body;
11193 smp->ctx.a[1] = body + block1;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11194 smp->ctx.a[2] = msg->chn->buf->data;
11195 smp->ctx.a[3] = msg->chn->buf->data + ( len - block1 );
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11196 }
11197 }
11198 return smp_fetch_param('&', name, name_len, args, smp, kw, private);
11199}
11200
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11201/* Return the signed integer value for the specified url parameter (see url_param
11202 * above).
11203 */
11204static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11205smp_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]11206{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11207 int ret = smp_fetch_url_param(args, smp, kw, private);
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11208
11209 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11210 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11211 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]11212 }
11213
11214 return ret;
11215}
11216
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11217/* This produces a 32-bit hash of the concatenation of the first occurrence of
11218 * the Host header followed by the path component if it begins with a slash ('/').
11219 * This means that '*' will not be added, resulting in exactly the first Host
11220 * entry. If no Host header is found, then the path is used. The resulting value
11221 * is hashed using the url hash followed by a full avalanche hash and provides a
11222 * 32-bit integer value. This fetch is useful for tracking per-URL activity on
11223 * high-traffic sites without having to store whole paths.
11224 * this differs from the base32 functions in that it includes the url parameters
11225 * as well as the path
11226 */
11227static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11228smp_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]11229{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11230 struct http_txn *txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11231 struct hdr_ctx ctx;
11232 unsigned int hash = 0;
11233 char *ptr, *beg, *end;
11234 int len;
11235
11236 CHECK_HTTP_MESSAGE_FIRST();
11237
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11238 txn = smp->strm->txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11239 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11240 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]11241 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
11242 ptr = ctx.line + ctx.val;
11243 len = ctx.vlen;
11244 while (len--)
11245 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
11246 }
11247
11248 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11249 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]11250 beg = http_get_path(txn);
11251 if (!beg)
11252 beg = end;
11253
11254 for (ptr = beg; ptr < end ; ptr++);
11255
11256 if (beg < ptr && *beg == '/') {
11257 while (beg < ptr)
11258 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
11259 }
11260 hash = full_hash(hash);
11261
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11262 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11263 smp->data.u.sint = hash;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11264 smp->flags = SMP_F_VOL_1ST;
11265 return 1;
11266}
11267
11268/* This concatenates the source address with the 32-bit hash of the Host and
11269 * URL as returned by smp_fetch_base32(). The idea is to have per-source and
11270 * per-url counters. The result is a binary block from 8 to 20 bytes depending
11271 * on the source address length. The URL hash is stored before the address so
11272 * that in environments where IPv6 is insignificant, truncating the output to
11273 * 8 bytes would still work.
11274 */
11275static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11276smp_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]11277{
11278 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11279 struct connection *cli_conn = objt_conn(smp->sess->origin);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11280
Dragan Dosendb5af612016-06-16 11:23:01 +0200[diff] [blame]11281 if (!cli_conn)
11282 return 0;
11283
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11284 if (!smp_fetch_url32(args, smp, kw, private))
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11285 return 0;
11286
11287 temp = get_trash_chunk();
Dragan Dosene5f41332016-06-16 11:08:08 +0200[diff] [blame]11288 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
11289 temp->len += sizeof(unsigned int);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11290
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11291 switch (cli_conn->addr.from.ss_family) {
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11292 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11293 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]11294 temp->len += 4;
11295 break;
11296 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11297 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]11298 temp->len += 16;
11299 break;
11300 default:
11301 return 0;
11302 }
11303
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11304 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11305 smp->data.type = SMP_T_BIN;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11306 return 1;
11307}
11308
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11309/* This function is used to validate the arguments passed to any "hdr" fetch
11310 * keyword. These keywords support an optional positive or negative occurrence
11311 * number. We must ensure that the number is greater than -MAX_HDR_HISTORY. It
11312 * is assumed that the types are already the correct ones. Returns 0 on error,
11313 * non-zero if OK. If <err> is not NULL, it will be filled with a pointer to an
11314 * error message in case of error, that the caller is responsible for freeing.
11315 * The initial location must either be freeable or NULL.
11316 */
Thierry FOURNIER49f45af2014-12-08 19:50:43 +0100[diff] [blame]11317int val_hdr(struct arg *arg, char **err_msg)
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11318{
11319 if (arg && arg[1].type == ARGT_SINT && arg[1].data.sint < -MAX_HDR_HISTORY) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]11320 memprintf(err_msg, "header occurrence must be >= %d", -MAX_HDR_HISTORY);
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11321 return 0;
11322 }
11323 return 1;
11324}
11325
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11326/* takes an UINT value on input supposed to represent the time since EPOCH,
11327 * adds an optional offset found in args[0] and emits a string representing
11328 * the date in RFC-1123/5322 format.
11329 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11330static int sample_conv_http_date(const struct arg *args, struct sample *smp, void *private)
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11331{
Cyril Bontéf78d8962016-01-22 19:40:28 +0100[diff] [blame]11332 const char day[7][4] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11333 const char mon[12][4] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
11334 struct chunk *temp;
11335 struct tm *tm;
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11336 /* 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]11337 time_t curr_date = smp->data.u.sint & 0x007fffffffffffffLL;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11338
11339 /* add offset */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11340 if (args && (args[0].type == ARGT_SINT))
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11341 curr_date += args[0].data.sint;
11342
11343 tm = gmtime(&curr_date);
Thierry FOURNIERfac9ccf2015-07-08 00:15:20 +0200[diff] [blame]11344 if (!tm)
11345 return 0;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11346
11347 temp = get_trash_chunk();
11348 temp->len = snprintf(temp->str, temp->size - temp->len,
11349 "%s, %02d %s %04d %02d:%02d:%02d GMT",
11350 day[tm->tm_wday], tm->tm_mday, mon[tm->tm_mon], 1900+tm->tm_year,
11351 tm->tm_hour, tm->tm_min, tm->tm_sec);
11352
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11353 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11354 smp->data.type = SMP_T_STR;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11355 return 1;
11356}
11357
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11358/* Match language range with language tag. RFC2616 14.4:
11359 *
11360 * A language-range matches a language-tag if it exactly equals
11361 * the tag, or if it exactly equals a prefix of the tag such
11362 * that the first tag character following the prefix is "-".
11363 *
11364 * Return 1 if the strings match, else return 0.
11365 */
11366static inline int language_range_match(const char *range, int range_len,
11367 const char *tag, int tag_len)
11368{
11369 const char *end = range + range_len;
11370 const char *tend = tag + tag_len;
11371 while (range < end) {
11372 if (*range == '-' && tag == tend)
11373 return 1;
11374 if (*range != *tag || tag == tend)
11375 return 0;
11376 range++;
11377 tag++;
11378 }
11379 /* Return true only if the last char of the tag is matched. */
11380 return tag == tend;
11381}
11382
11383/* Arguments: The list of expected value, the number of parts returned and the separator */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11384static int sample_conv_q_prefered(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11385{
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11386 const char *al = smp->data.u.str.str;
11387 const char *end = al + smp->data.u.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11388 const char *token;
11389 int toklen;
11390 int qvalue;
11391 const char *str;
11392 const char *w;
11393 int best_q = 0;
11394
11395 /* Set the constant to the sample, because the output of the
11396 * function will be peek in the constant configuration string.
11397 */
11398 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11399 smp->data.u.str.size = 0;
11400 smp->data.u.str.str = "";
11401 smp->data.u.str.len = 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11402
11403 /* Parse the accept language */
11404 while (1) {
11405
11406 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11407 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11408 al++;
11409 if (al >= end)
11410 break;
11411
11412 /* Start of the fisrt word. */
11413 token = al;
11414
11415 /* Look for separator: isspace(), ',' or ';'. Next value if 0 length word. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11416 while (al < end && *al != ';' && *al != ',' && !isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11417 al++;
11418 if (al == token)
11419 goto expect_comma;
11420
11421 /* Length of the token. */
11422 toklen = al - token;
11423 qvalue = 1000;
11424
11425 /* Check if the token exists in the list. If the token not exists,
11426 * jump to the next token.
11427 */
11428 str = args[0].data.str.str;
11429 w = str;
11430 while (1) {
11431 if (*str == ';' || *str == '\0') {
11432 if (language_range_match(token, toklen, w, str-w))
11433 goto look_for_q;
11434 if (*str == '\0')
11435 goto expect_comma;
11436 w = str + 1;
11437 }
11438 str++;
11439 }
11440 goto expect_comma;
11441
11442look_for_q:
11443
11444 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11445 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11446 al++;
11447 if (al >= end)
11448 goto process_value;
11449
11450 /* If ',' is found, process the result */
11451 if (*al == ',')
11452 goto process_value;
11453
11454 /* If the character is different from ';', look
11455 * for the end of the header part in best effort.
11456 */
11457 if (*al != ';')
11458 goto expect_comma;
11459
11460 /* Assumes that the char is ';', now expect "q=". */
11461 al++;
11462
11463 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11464 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11465 al++;
11466 if (al >= end)
11467 goto process_value;
11468
11469 /* Expect 'q'. If no 'q', continue in best effort */
11470 if (*al != 'q')
11471 goto process_value;
11472 al++;
11473
11474 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11475 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11476 al++;
11477 if (al >= end)
11478 goto process_value;
11479
11480 /* Expect '='. If no '=', continue in best effort */
11481 if (*al != '=')
11482 goto process_value;
11483 al++;
11484
11485 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11486 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11487 al++;
11488 if (al >= end)
11489 goto process_value;
11490
11491 /* Parse the q value. */
11492 qvalue = parse_qvalue(al, &al);
11493
11494process_value:
11495
11496 /* If the new q value is the best q value, then store the associated
11497 * language in the response. If qvalue is the biggest value (1000),
11498 * break the process.
11499 */
11500 if (qvalue > best_q) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11501 smp->data.u.str.str = (char *)w;
11502 smp->data.u.str.len = str - w;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11503 if (qvalue >= 1000)
11504 break;
11505 best_q = qvalue;
11506 }
11507
11508expect_comma:
11509
11510 /* Expect comma or end. If the end is detected, quit the loop. */
11511 while (al < end && *al != ',')
11512 al++;
11513 if (al >= end)
11514 break;
11515
11516 /* Comma is found, jump it and restart the analyzer. */
11517 al++;
11518 }
11519
11520 /* Set default value if required. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11521 if (smp->data.u.str.len == 0 && args[1].type == ARGT_STR) {
11522 smp->data.u.str.str = args[1].data.str.str;
11523 smp->data.u.str.len = args[1].data.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11524 }
11525
11526 /* Return true only if a matching language was found. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11527 return smp->data.u.str.len != 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11528}
11529
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11530/* This fetch url-decode any input string. */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11531static int sample_conv_url_dec(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11532{
11533 /* If the constant flag is set or if not size is avalaible at
11534 * the end of the buffer, copy the string in other buffer
11535 * before decoding.
11536 */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11537 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]11538 struct chunk *str = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11539 memcpy(str->str, smp->data.u.str.str, smp->data.u.str.len);
11540 smp->data.u.str.str = str->str;
11541 smp->data.u.str.size = str->size;
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11542 smp->flags &= ~SMP_F_CONST;
11543 }
11544
11545 /* Add final \0 required by url_decode(), and convert the input string. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11546 smp->data.u.str.str[smp->data.u.str.len] = '\0';
11547 smp->data.u.str.len = url_decode(smp->data.u.str.str);
Christopher Fauleta2584792017-10-05 10:03:12 +0200[diff] [blame]11548 return (smp->data.u.str.len >= 0);
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11549}
11550
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11551static int smp_conv_req_capture(const struct arg *args, struct sample *smp, void *private)
11552{
11553 struct proxy *fe = strm_fe(smp->strm);
11554 int idx, i;
11555 struct cap_hdr *hdr;
11556 int len;
11557
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11558 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11559 return 0;
11560
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11561 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11562
11563 /* Check the availibity of the capture id. */
11564 if (idx > fe->nb_req_cap - 1)
11565 return 0;
11566
11567 /* Look for the original configuration. */
11568 for (hdr = fe->req_cap, i = fe->nb_req_cap - 1;
11569 hdr != NULL && i != idx ;
11570 i--, hdr = hdr->next);
11571 if (!hdr)
11572 return 0;
11573
11574 /* check for the memory allocation */
11575 if (smp->strm->req_cap[hdr->index] == NULL)
11576 smp->strm->req_cap[hdr->index] = pool_alloc2(hdr->pool);
11577 if (smp->strm->req_cap[hdr->index] == NULL)
11578 return 0;
11579
11580 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11581 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11582 if (len > hdr->len)
11583 len = hdr->len;
11584
11585 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11586 memcpy(smp->strm->req_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11587 smp->strm->req_cap[idx][len] = '\0';
11588
11589 return 1;
11590}
11591
11592static int smp_conv_res_capture(const struct arg *args, struct sample *smp, void *private)
11593{
11594 struct proxy *fe = strm_fe(smp->strm);
11595 int idx, i;
11596 struct cap_hdr *hdr;
11597 int len;
11598
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11599 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11600 return 0;
11601
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11602 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11603
11604 /* Check the availibity of the capture id. */
11605 if (idx > fe->nb_rsp_cap - 1)
11606 return 0;
11607
11608 /* Look for the original configuration. */
11609 for (hdr = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
11610 hdr != NULL && i != idx ;
11611 i--, hdr = hdr->next);
11612 if (!hdr)
11613 return 0;
11614
11615 /* check for the memory allocation */
11616 if (smp->strm->res_cap[hdr->index] == NULL)
11617 smp->strm->res_cap[hdr->index] = pool_alloc2(hdr->pool);
11618 if (smp->strm->res_cap[hdr->index] == NULL)
11619 return 0;
11620
11621 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11622 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11623 if (len > hdr->len)
11624 len = hdr->len;
11625
11626 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11627 memcpy(smp->strm->res_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11628 smp->strm->res_cap[idx][len] = '\0';
11629
11630 return 1;
11631}
11632
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11633/* This function executes one of the set-{method,path,query,uri} actions. It
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11634 * takes the string from the variable 'replace' with length 'len', then modifies
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11635 * the relevant part of the request line accordingly. Then it updates various
11636 * pointers to the next elements which were moved, and the total buffer length.
11637 * It finds the action to be performed in p[2], previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11638 * parse_set_req_line(). It returns 0 in case of success, -1 in case of internal
11639 * error, though this can be revisited when this code is finally exploited.
11640 *
11641 * 'action' can be '0' to replace method, '1' to replace path, '2' to replace
11642 * query string and 3 to replace uri.
11643 *
11644 * In query string case, the mark question '?' must be set at the start of the
11645 * string by the caller, event if the replacement query string is empty.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11646 */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11647int http_replace_req_line(int action, const char *replace, int len,
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11648 struct proxy *px, struct stream *s)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11649{
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11650 struct http_txn *txn = s->txn;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11651 char *cur_ptr, *cur_end;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11652 int offset = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11653 int delta;
11654
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11655 switch (action) {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11656 case 0: // method
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11657 cur_ptr = s->req.buf->p;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11658 cur_end = cur_ptr + txn->req.sl.rq.m_l;
11659
11660 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11661 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11662 txn->req.sl.rq.m_l += delta;
11663 txn->req.sl.rq.u += delta;
11664 txn->req.sl.rq.v += delta;
11665 break;
11666
11667 case 1: // path
11668 cur_ptr = http_get_path(txn);
11669 if (!cur_ptr)
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11670 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11671
11672 cur_end = cur_ptr;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11673 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]11674 cur_end++;
11675
11676 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11677 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11678 txn->req.sl.rq.u_l += delta;
11679 txn->req.sl.rq.v += delta;
11680 break;
11681
11682 case 2: // query
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11683 offset = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11684 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11685 cur_end = cur_ptr + txn->req.sl.rq.u_l;
11686 while (cur_ptr < cur_end && *cur_ptr != '?')
11687 cur_ptr++;
11688
11689 /* skip the question mark or indicate that we must insert it
11690 * (but only if the format string is not empty then).
11691 */
11692 if (cur_ptr < cur_end)
11693 cur_ptr++;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11694 else if (len > 1)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11695 offset = 0;
11696
11697 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11698 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11699 txn->req.sl.rq.u_l += delta;
11700 txn->req.sl.rq.v += delta;
11701 break;
11702
11703 case 3: // uri
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11704 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11705 cur_end = cur_ptr + txn->req.sl.rq.u_l;
11706
11707 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11708 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11709 txn->req.sl.rq.u_l += delta;
11710 txn->req.sl.rq.v += delta;
11711 break;
11712
11713 default:
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11714 return -1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11715 }
11716
11717 /* commit changes and adjust end of message */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11718 delta = buffer_replace2(s->req.buf, cur_ptr, cur_end, replace + offset, len - offset);
Thierry FOURNIER7f6192c2015-04-26 18:01:40 +0200[diff] [blame]11719 txn->req.sl.rq.l += delta;
11720 txn->hdr_idx.v[0].len += delta;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11721 http_msg_move_end(&txn->req, delta);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11722 return 0;
11723}
11724
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11725/* This function replace the HTTP status code and the associated message. The
11726 * variable <status> contains the new status code. This function never fails.
11727 */
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11728void http_set_status(unsigned int status, const char *reason, struct stream *s)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11729{
11730 struct http_txn *txn = s->txn;
11731 char *cur_ptr, *cur_end;
11732 int delta;
11733 char *res;
11734 int c_l;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11735 const char *msg = reason;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11736 int msg_len;
11737
11738 chunk_reset(&trash);
11739
11740 res = ultoa_o(status, trash.str, trash.size);
11741 c_l = res - trash.str;
11742
11743 trash.str[c_l] = ' ';
11744 trash.len = c_l + 1;
11745
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11746 /* Do we have a custom reason format string? */
11747 if (msg == NULL)
11748 msg = get_reason(status);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11749 msg_len = strlen(msg);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11750 strncpy(&trash.str[trash.len], msg, trash.size - trash.len);
11751 trash.len += msg_len;
11752
11753 cur_ptr = s->res.buf->p + txn->rsp.sl.st.c;
11754 cur_end = s->res.buf->p + txn->rsp.sl.st.r + txn->rsp.sl.st.r_l;
11755
11756 /* commit changes and adjust message */
11757 delta = buffer_replace2(s->res.buf, cur_ptr, cur_end, trash.str, trash.len);
11758
11759 /* adjust res line offsets and lengths */
11760 txn->rsp.sl.st.r += c_l - txn->rsp.sl.st.c_l;
11761 txn->rsp.sl.st.c_l = c_l;
11762 txn->rsp.sl.st.r_l = msg_len;
11763
11764 delta = trash.len - (cur_end - cur_ptr);
11765 txn->rsp.sl.st.l += delta;
11766 txn->hdr_idx.v[0].len += delta;
11767 http_msg_move_end(&txn->rsp, delta);
11768}
11769
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11770/* This function executes one of the set-{method,path,query,uri} actions. It
11771 * builds a string in the trash from the specified format string. It finds
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]11772 * the action to be performed in <http.action>, previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11773 * parse_set_req_line(). The replacement action is excuted by the function
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]11774 * http_action_set_req_line(). It always returns ACT_RET_CONT. If an error
11775 * occurs the action is canceled, but the rule processing continue.
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11776 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11777enum act_return http_action_set_req_line(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11778 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11779{
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]11780 struct chunk *replace;
11781 enum act_return ret = ACT_RET_ERR;
11782
11783 replace = alloc_trash_chunk();
11784 if (!replace)
11785 goto leave;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11786
11787 /* If we have to create a query string, prepare a '?'. */
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11788 if (rule->arg.http.action == 2)
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]11789 replace->str[replace->len++] = '?';
11790 replace->len += build_logline(s, replace->str + replace->len, replace->size - replace->len,
11791 &rule->arg.http.logfmt);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11792
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]11793 http_replace_req_line(rule->arg.http.action, replace->str, replace->len, px, s);
11794
11795 ret = ACT_RET_CONT;
11796
11797leave:
11798 free_trash_chunk(replace);
11799 return ret;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11800}
11801
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11802/* This function is just a compliant action wrapper for "set-status". */
11803enum act_return action_http_set_status(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11804 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11805{
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11806 http_set_status(rule->arg.status.code, rule->arg.status.reason, s);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11807 return ACT_RET_CONT;
11808}
11809
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11810/* parse an http-request action among :
11811 * set-method
11812 * set-path
11813 * set-query
11814 * set-uri
11815 *
11816 * All of them accept a single argument of type string representing a log-format.
11817 * The resulting rule makes use of arg->act.p[0..1] to store the log-format list
11818 * 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]11819 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11820 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11821enum act_parse_ret parse_set_req_line(const char **args, int *orig_arg, struct proxy *px,
11822 struct act_rule *rule, char **err)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11823{
11824 int cur_arg = *orig_arg;
11825
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]11826 rule->action = ACT_CUSTOM;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11827
11828 switch (args[0][4]) {
11829 case 'm' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11830 rule->arg.http.action = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11831 rule->action_ptr = http_action_set_req_line;
11832 break;
11833 case 'p' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11834 rule->arg.http.action = 1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11835 rule->action_ptr = http_action_set_req_line;
11836 break;
11837 case 'q' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11838 rule->arg.http.action = 2;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11839 rule->action_ptr = http_action_set_req_line;
11840 break;
11841 case 'u' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11842 rule->arg.http.action = 3;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11843 rule->action_ptr = http_action_set_req_line;
11844 break;
11845 default:
11846 memprintf(err, "internal error: unhandled action '%s'", args[0]);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11847 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11848 }
11849
11850 if (!*args[cur_arg] ||
11851 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
11852 memprintf(err, "expects exactly 1 argument <format>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11853 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11854 }
11855
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11856 LIST_INIT(&rule->arg.http.logfmt);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11857 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]11858 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.http.logfmt, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]11859 (proxy->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]11860 return ACT_RET_PRS_ERR;
11861 }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11862
11863 (*orig_arg)++;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11864 return ACT_RET_PRS_OK;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11865}
11866
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11867/* parse set-status action:
11868 * This action accepts a single argument of type int representing
11869 * an http status code. It returns ACT_RET_PRS_OK on success,
11870 * ACT_RET_PRS_ERR on error.
11871 */
11872enum act_parse_ret parse_http_set_status(const char **args, int *orig_arg, struct proxy *px,
11873 struct act_rule *rule, char **err)
11874{
11875 char *error;
11876
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]11877 rule->action = ACT_CUSTOM;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11878 rule->action_ptr = action_http_set_status;
11879
11880 /* Check if an argument is available */
11881 if (!*args[*orig_arg]) {
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11882 memprintf(err, "expects 1 argument: <status>; or 3 arguments: <status> reason <fmt>");
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11883 return ACT_RET_PRS_ERR;
11884 }
11885
11886 /* convert status code as integer */
11887 rule->arg.status.code = strtol(args[*orig_arg], &error, 10);
11888 if (*error != '\0' || rule->arg.status.code < 100 || rule->arg.status.code > 999) {
11889 memprintf(err, "expects an integer status code between 100 and 999");
11890 return ACT_RET_PRS_ERR;
11891 }
11892
11893 (*orig_arg)++;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11894
11895 /* set custom reason string */
11896 rule->arg.status.reason = NULL; // If null, we use the default reason for the status code.
11897 if (*args[*orig_arg] && strcmp(args[*orig_arg], "reason") == 0 &&
11898 (*args[*orig_arg + 1] && strcmp(args[*orig_arg + 1], "if") != 0 && strcmp(args[*orig_arg + 1], "unless") != 0)) {
11899 (*orig_arg)++;
11900 rule->arg.status.reason = strdup(args[*orig_arg]);
11901 (*orig_arg)++;
11902 }
11903
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11904 return ACT_RET_PRS_OK;
11905}
11906
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11907/* This function executes the "capture" action. It executes a fetch expression,
11908 * turns the result into a string and puts it in a capture slot. It always
11909 * returns 1. If an error occurs the action is cancelled, but the rule
11910 * processing continues.
11911 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11912enum act_return http_action_req_capture(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11913 struct session *sess, struct stream *s, int flags)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11914{
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11915 struct sample *key;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]11916 struct cap_hdr *h = rule->arg.cap.hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11917 char **cap = s->req_cap;
11918 int len;
11919
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]11920 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]11921 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11922 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11923
11924 if (cap[h->index] == NULL)
11925 cap[h->index] = pool_alloc2(h->pool);
11926
11927 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11928 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11929
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11930 len = key->data.u.str.len;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11931 if (len > h->len)
11932 len = h->len;
11933
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11934 memcpy(cap[h->index], key->data.u.str.str, len);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11935 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11936 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11937}
11938
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11939/* This function executes the "capture" action and store the result in a
11940 * capture slot if exists. It executes a fetch expression, turns the result
11941 * into a string and puts it in a capture slot. It always returns 1. If an
11942 * error occurs the action is cancelled, but the rule processing continues.
11943 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11944enum 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]11945 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11946{
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11947 struct sample *key;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11948 struct cap_hdr *h;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11949 char **cap = s->req_cap;
11950 struct proxy *fe = strm_fe(s);
11951 int len;
11952 int i;
11953
11954 /* Look for the original configuration. */
11955 for (h = fe->req_cap, i = fe->nb_req_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]11956 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11957 i--, h = h->next);
11958 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11959 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11960
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]11961 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]11962 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11963 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11964
11965 if (cap[h->index] == NULL)
11966 cap[h->index] = pool_alloc2(h->pool);
11967
11968 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11969 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11970
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11971 len = key->data.u.str.len;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11972 if (len > h->len)
11973 len = h->len;
11974
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11975 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11976 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11977 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11978}
11979
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]11980/* Check an "http-request capture" action.
11981 *
11982 * The function returns 1 in success case, otherwise, it returns 0 and err is
11983 * filled.
11984 */
11985int check_http_req_capture(struct act_rule *rule, struct proxy *px, char **err)
11986{
11987 if (rule->arg.capid.idx >= px->nb_req_cap) {
11988 memprintf(err, "unable to find capture id '%d' referenced by http-request capture rule",
11989 rule->arg.capid.idx);
11990 return 0;
11991 }
11992
11993 return 1;
11994}
11995
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11996/* parse an "http-request capture" action. It takes a single argument which is
11997 * a sample fetch expression. It stores the expression into arg->act.p[0] and
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11998 * the allocated hdr_cap struct or the preallocated "id" into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11999 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12000 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12001enum act_parse_ret parse_http_req_capture(const char **args, int *orig_arg, struct proxy *px,
12002 struct act_rule *rule, char **err)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12003{
12004 struct sample_expr *expr;
12005 struct cap_hdr *hdr;
12006 int cur_arg;
Willy Tarreau3986ac12015-05-08 16:13:42 +0200[diff] [blame]12007 int len = 0;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12008
12009 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12010 if (strcmp(args[cur_arg], "if") == 0 ||
12011 strcmp(args[cur_arg], "unless") == 0)
12012 break;
12013
12014 if (cur_arg < *orig_arg + 3) {
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12015 memprintf(err, "expects <expression> [ 'len' <length> | id <idx> ]");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12016 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12017 }
12018
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12019 cur_arg = *orig_arg;
12020 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12021 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12022 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12023
12024 if (!(expr->fetch->val & SMP_VAL_FE_HRQ_HDR)) {
12025 memprintf(err,
12026 "fetch method '%s' extracts information from '%s', none of which is available here",
12027 args[cur_arg-1], sample_src_names(expr->fetch->use));
12028 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12029 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12030 }
12031
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12032 if (!args[cur_arg] || !*args[cur_arg]) {
12033 memprintf(err, "expects 'len or 'id'");
12034 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12035 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12036 }
12037
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12038 if (strcmp(args[cur_arg], "len") == 0) {
12039 cur_arg++;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12040
12041 if (!(px->cap & PR_CAP_FE)) {
12042 memprintf(err, "proxy '%s' has no frontend capability", px->id);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12043 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12044 }
12045
12046 proxy->conf.args.ctx = ARGC_CAP;
12047
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12048 if (!args[cur_arg]) {
12049 memprintf(err, "missing length value");
12050 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12051 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12052 }
12053 /* we copy the table name for now, it will be resolved later */
12054 len = atoi(args[cur_arg]);
12055 if (len <= 0) {
12056 memprintf(err, "length must be > 0");
12057 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12058 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12059 }
12060 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12061
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12062 if (!len) {
12063 memprintf(err, "a positive 'len' argument is mandatory");
12064 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12065 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12066 }
12067
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]12068 hdr = calloc(1, sizeof(*hdr));
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12069 hdr->next = px->req_cap;
12070 hdr->name = NULL; /* not a header capture */
12071 hdr->namelen = 0;
12072 hdr->len = len;
12073 hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED);
12074 hdr->index = px->nb_req_cap++;
12075
12076 px->req_cap = hdr;
12077 px->to_log |= LW_REQHDR;
12078
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12079 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12080 rule->action_ptr = http_action_req_capture;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12081 rule->check_ptr = check_http_req_capture;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12082 rule->arg.cap.expr = expr;
12083 rule->arg.cap.hdr = hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12084 }
12085
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12086 else if (strcmp(args[cur_arg], "id") == 0) {
12087 int id;
12088 char *error;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12089
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12090 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12091
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12092 if (!args[cur_arg]) {
12093 memprintf(err, "missing id value");
12094 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12095 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12096 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12097
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12098 id = strtol(args[cur_arg], &error, 10);
12099 if (*error != '\0') {
12100 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12101 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12102 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12103 }
12104 cur_arg++;
12105
12106 proxy->conf.args.ctx = ARGC_CAP;
12107
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12108 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12109 rule->action_ptr = http_action_req_capture_by_id;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12110 rule->check_ptr = check_http_req_capture;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12111 rule->arg.capid.expr = expr;
12112 rule->arg.capid.idx = id;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12113 }
12114
12115 else {
12116 memprintf(err, "expects 'len' or 'id', found '%s'", args[cur_arg]);
12117 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12118 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12119 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12120
12121 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12122 return ACT_RET_PRS_OK;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12123}
12124
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12125/* This function executes the "capture" action and store the result in a
12126 * capture slot if exists. It executes a fetch expression, turns the result
12127 * into a string and puts it in a capture slot. It always returns 1. If an
12128 * error occurs the action is cancelled, but the rule processing continues.
12129 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12130enum 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]12131 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12132{
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12133 struct sample *key;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12134 struct cap_hdr *h;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12135 char **cap = s->res_cap;
12136 struct proxy *fe = strm_fe(s);
12137 int len;
12138 int i;
12139
12140 /* Look for the original configuration. */
12141 for (h = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12142 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12143 i--, h = h->next);
12144 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12145 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12146
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12147 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]12148 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12149 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12150
12151 if (cap[h->index] == NULL)
12152 cap[h->index] = pool_alloc2(h->pool);
12153
12154 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12155 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12156
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12157 len = key->data.u.str.len;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12158 if (len > h->len)
12159 len = h->len;
12160
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12161 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12162 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12163 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12164}
12165
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12166/* Check an "http-response capture" action.
12167 *
12168 * The function returns 1 in success case, otherwise, it returns 0 and err is
12169 * filled.
12170 */
12171int check_http_res_capture(struct act_rule *rule, struct proxy *px, char **err)
12172{
12173 if (rule->arg.capid.idx >= px->nb_rsp_cap) {
12174 memprintf(err, "unable to find capture id '%d' referenced by http-response capture rule",
12175 rule->arg.capid.idx);
12176 return 0;
12177 }
12178
12179 return 1;
12180}
12181
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12182/* parse an "http-response capture" action. It takes a single argument which is
12183 * a sample fetch expression. It stores the expression into arg->act.p[0] and
12184 * the allocated hdr_cap struct od the preallocated id into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12185 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12186 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12187enum act_parse_ret parse_http_res_capture(const char **args, int *orig_arg, struct proxy *px,
12188 struct act_rule *rule, char **err)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12189{
12190 struct sample_expr *expr;
12191 int cur_arg;
12192 int id;
12193 char *error;
12194
12195 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12196 if (strcmp(args[cur_arg], "if") == 0 ||
12197 strcmp(args[cur_arg], "unless") == 0)
12198 break;
12199
12200 if (cur_arg < *orig_arg + 3) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12201 memprintf(err, "expects <expression> id <idx>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12202 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12203 }
12204
12205 cur_arg = *orig_arg;
12206 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12207 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12208 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12209
12210 if (!(expr->fetch->val & SMP_VAL_FE_HRS_HDR)) {
12211 memprintf(err,
12212 "fetch method '%s' extracts information from '%s', none of which is available here",
12213 args[cur_arg-1], sample_src_names(expr->fetch->use));
12214 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12215 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12216 }
12217
12218 if (!args[cur_arg] || !*args[cur_arg]) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12219 memprintf(err, "expects 'id'");
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12220 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12221 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12222 }
12223
12224 if (strcmp(args[cur_arg], "id") != 0) {
12225 memprintf(err, "expects 'id', found '%s'", args[cur_arg]);
12226 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12227 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12228 }
12229
12230 cur_arg++;
12231
12232 if (!args[cur_arg]) {
12233 memprintf(err, "missing id value");
12234 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12235 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12236 }
12237
12238 id = strtol(args[cur_arg], &error, 10);
12239 if (*error != '\0') {
12240 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12241 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12242 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12243 }
12244 cur_arg++;
12245
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12246 proxy->conf.args.ctx = ARGC_CAP;
12247
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12248 rule->action = ACT_CUSTOM;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12249 rule->action_ptr = http_action_res_capture_by_id;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12250 rule->check_ptr = check_http_res_capture;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12251 rule->arg.capid.expr = expr;
12252 rule->arg.capid.idx = id;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12253
12254 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12255 return ACT_RET_PRS_OK;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12256}
12257
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12258/*
12259 * Return the struct http_req_action_kw associated to a keyword.
12260 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12261struct action_kw *action_http_req_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12262{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12263 return action_lookup(&http_req_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12264}
12265
12266/*
12267 * Return the struct http_res_action_kw associated to a keyword.
12268 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12269struct action_kw *action_http_res_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12270{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12271 return action_lookup(&http_res_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12272}
12273
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12274
12275/* "show errors" handler for the CLI. Returns 0 if wants to continue, 1 to stop
12276 * now.
12277 */
12278static int cli_parse_show_errors(char **args, struct appctx *appctx, void *private)
12279{
12280 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
12281 return 1;
12282
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12283 if (*args[2]) {
12284 struct proxy *px;
12285
12286 px = proxy_find_by_name(args[2], 0, 0);
12287 if (px)
12288 appctx->ctx.errors.iid = px->uuid;
12289 else
12290 appctx->ctx.errors.iid = atoi(args[2]);
12291
12292 if (!appctx->ctx.errors.iid) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +0200[diff] [blame]12293 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12294 appctx->ctx.cli.msg = "No such proxy.\n";
12295 appctx->st0 = CLI_ST_PRINT;
12296 return 1;
12297 }
12298 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12299 else
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12300 appctx->ctx.errors.iid = -1; // dump all proxies
12301
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12302 appctx->ctx.errors.flag = 0;
12303 if (strcmp(args[3], "request") == 0)
12304 appctx->ctx.errors.flag |= 4; // ignore response
12305 else if (strcmp(args[3], "response") == 0)
12306 appctx->ctx.errors.flag |= 2; // ignore request
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12307 appctx->ctx.errors.px = NULL;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12308 return 0;
12309}
12310
12311/* This function dumps all captured errors onto the stream interface's
12312 * read buffer. It returns 0 if the output buffer is full and it needs
12313 * to be called again, otherwise non-zero.
12314 */
12315static int cli_io_handler_show_errors(struct appctx *appctx)
12316{
12317 struct stream_interface *si = appctx->owner;
12318 extern const char *monthname[12];
12319
12320 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
12321 return 1;
12322
12323 chunk_reset(&trash);
12324
12325 if (!appctx->ctx.errors.px) {
12326 /* the function had not been called yet, let's prepare the
12327 * buffer for a response.
12328 */
12329 struct tm tm;
12330
12331 get_localtime(date.tv_sec, &tm);
12332 chunk_appendf(&trash, "Total events captured on [%02d/%s/%04d:%02d:%02d:%02d.%03d] : %u\n",
12333 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12334 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(date.tv_usec/1000),
12335 error_snapshot_id);
12336
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12337 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12338 /* Socket buffer full. Let's try again later from the same point */
12339 si_applet_cant_put(si);
12340 return 0;
12341 }
12342
12343 appctx->ctx.errors.px = proxy;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12344 appctx->ctx.errors.bol = 0;
12345 appctx->ctx.errors.ptr = -1;
12346 }
12347
12348 /* we have two inner loops here, one for the proxy, the other one for
12349 * the buffer.
12350 */
12351 while (appctx->ctx.errors.px) {
12352 struct error_snapshot *es;
12353
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12354 if ((appctx->ctx.errors.flag & 1) == 0) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12355 es = &appctx->ctx.errors.px->invalid_req;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12356 if (appctx->ctx.errors.flag & 2) // skip req
12357 goto next;
12358 }
12359 else {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12360 es = &appctx->ctx.errors.px->invalid_rep;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12361 if (appctx->ctx.errors.flag & 4) // skip resp
12362 goto next;
12363 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12364
12365 if (!es->when.tv_sec)
12366 goto next;
12367
12368 if (appctx->ctx.errors.iid >= 0 &&
12369 appctx->ctx.errors.px->uuid != appctx->ctx.errors.iid &&
12370 es->oe->uuid != appctx->ctx.errors.iid)
12371 goto next;
12372
12373 if (appctx->ctx.errors.ptr < 0) {
12374 /* just print headers now */
12375
12376 char pn[INET6_ADDRSTRLEN];
12377 struct tm tm;
12378 int port;
12379
12380 get_localtime(es->when.tv_sec, &tm);
12381 chunk_appendf(&trash, " \n[%02d/%s/%04d:%02d:%02d:%02d.%03d]",
12382 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12383 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(es->when.tv_usec/1000));
12384
12385 switch (addr_to_str(&es->src, pn, sizeof(pn))) {
12386 case AF_INET:
12387 case AF_INET6:
12388 port = get_host_port(&es->src);
12389 break;
12390 default:
12391 port = 0;
12392 }
12393
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12394 switch (appctx->ctx.errors.flag & 1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12395 case 0:
12396 chunk_appendf(&trash,
12397 " frontend %s (#%d): invalid request\n"
12398 " backend %s (#%d)",
12399 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12400 (es->oe->cap & PR_CAP_BE) ? es->oe->id : "<NONE>",
12401 (es->oe->cap & PR_CAP_BE) ? es->oe->uuid : -1);
12402 break;
12403 case 1:
12404 chunk_appendf(&trash,
12405 " backend %s (#%d): invalid response\n"
12406 " frontend %s (#%d)",
12407 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12408 es->oe->id, es->oe->uuid);
12409 break;
12410 }
12411
12412 chunk_appendf(&trash,
12413 ", server %s (#%d), event #%u\n"
12414 " src %s:%d, session #%d, session flags 0x%08x\n"
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]12415 " HTTP msg state %s(%d), msg flags 0x%08x, tx flags 0x%08x\n"
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12416 " HTTP chunk len %lld bytes, HTTP body len %lld bytes\n"
12417 " buffer flags 0x%08x, out %d bytes, total %lld bytes\n"
12418 " pending %d bytes, wrapping at %d, error at position %d:\n \n",
12419 es->srv ? es->srv->id : "<NONE>", es->srv ? es->srv->puid : -1,
12420 es->ev_id,
12421 pn, port, es->sid, es->s_flags,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]12422 h1_msg_state_str(es->state), es->state, es->m_flags, es->t_flags,
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12423 es->m_clen, es->m_blen,
12424 es->b_flags, es->b_out, es->b_tot,
12425 es->len, es->b_wrap, es->pos);
12426
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12427 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12428 /* Socket buffer full. Let's try again later from the same point */
12429 si_applet_cant_put(si);
12430 return 0;
12431 }
12432 appctx->ctx.errors.ptr = 0;
12433 appctx->ctx.errors.sid = es->sid;
12434 }
12435
12436 if (appctx->ctx.errors.sid != es->sid) {
12437 /* the snapshot changed while we were dumping it */
12438 chunk_appendf(&trash,
12439 " WARNING! update detected on this snapshot, dump interrupted. Please re-check!\n");
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12440 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12441 si_applet_cant_put(si);
12442 return 0;
12443 }
12444 goto next;
12445 }
12446
12447 /* OK, ptr >= 0, so we have to dump the current line */
12448 while (es->buf && appctx->ctx.errors.ptr < es->len && appctx->ctx.errors.ptr < global.tune.bufsize) {
12449 int newptr;
12450 int newline;
12451
12452 newline = appctx->ctx.errors.bol;
12453 newptr = dump_text_line(&trash, es->buf, global.tune.bufsize, es->len, &newline, appctx->ctx.errors.ptr);
12454 if (newptr == appctx->ctx.errors.ptr)
12455 return 0;
12456
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12457 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12458 /* Socket buffer full. Let's try again later from the same point */
12459 si_applet_cant_put(si);
12460 return 0;
12461 }
12462 appctx->ctx.errors.ptr = newptr;
12463 appctx->ctx.errors.bol = newline;
12464 };
12465 next:
12466 appctx->ctx.errors.bol = 0;
12467 appctx->ctx.errors.ptr = -1;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12468 appctx->ctx.errors.flag ^= 1;
12469 if (!(appctx->ctx.errors.flag & 1))
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12470 appctx->ctx.errors.px = appctx->ctx.errors.px->next;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12471 }
12472
12473 /* dump complete */
12474 return 1;
12475}
12476
12477/* register cli keywords */
12478static struct cli_kw_list cli_kws = {{ },{
12479 { { "show", "errors", NULL },
12480 "show errors : report last request and response errors for each proxy",
12481 cli_parse_show_errors, cli_io_handler_show_errors, NULL,
12482 },
12483 {{},}
12484}};
12485
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12486/************************************************************************/
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12487/* All supported ACL keywords must be declared here. */
12488/************************************************************************/
12489
12490/* Note: must not be declared <const> as its list will be overwritten.
12491 * Please take care of keeping this list alphabetically sorted.
12492 */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12493static struct acl_kw_list acl_kws = {ILH, {
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12494 { "base", "base", PAT_MATCH_STR },
12495 { "base_beg", "base", PAT_MATCH_BEG },
12496 { "base_dir", "base", PAT_MATCH_DIR },
12497 { "base_dom", "base", PAT_MATCH_DOM },
12498 { "base_end", "base", PAT_MATCH_END },
12499 { "base_len", "base", PAT_MATCH_LEN },
12500 { "base_reg", "base", PAT_MATCH_REG },
12501 { "base_sub", "base", PAT_MATCH_SUB },
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]12502
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12503 { "cook", "req.cook", PAT_MATCH_STR },
12504 { "cook_beg", "req.cook", PAT_MATCH_BEG },
12505 { "cook_dir", "req.cook", PAT_MATCH_DIR },
12506 { "cook_dom", "req.cook", PAT_MATCH_DOM },
12507 { "cook_end", "req.cook", PAT_MATCH_END },
12508 { "cook_len", "req.cook", PAT_MATCH_LEN },
12509 { "cook_reg", "req.cook", PAT_MATCH_REG },
12510 { "cook_sub", "req.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12511
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12512 { "hdr", "req.hdr", PAT_MATCH_STR },
12513 { "hdr_beg", "req.hdr", PAT_MATCH_BEG },
12514 { "hdr_dir", "req.hdr", PAT_MATCH_DIR },
12515 { "hdr_dom", "req.hdr", PAT_MATCH_DOM },
12516 { "hdr_end", "req.hdr", PAT_MATCH_END },
12517 { "hdr_len", "req.hdr", PAT_MATCH_LEN },
12518 { "hdr_reg", "req.hdr", PAT_MATCH_REG },
12519 { "hdr_sub", "req.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12520
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12521 /* these two declarations uses strings with list storage (in place
12522 * of tree storage). The basic match is PAT_MATCH_STR, but the indexation
12523 * and delete functions are relative to the list management. The parse
12524 * and match method are related to the corresponding fetch methods. This
12525 * is very particular ACL declaration mode.
12526 */
12527 { "http_auth_group", NULL, PAT_MATCH_STR, NULL, pat_idx_list_str, pat_del_list_ptr, NULL, pat_match_auth },
12528 { "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]12529
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12530 { "path", "path", PAT_MATCH_STR },
12531 { "path_beg", "path", PAT_MATCH_BEG },
12532 { "path_dir", "path", PAT_MATCH_DIR },
12533 { "path_dom", "path", PAT_MATCH_DOM },
12534 { "path_end", "path", PAT_MATCH_END },
12535 { "path_len", "path", PAT_MATCH_LEN },
12536 { "path_reg", "path", PAT_MATCH_REG },
12537 { "path_sub", "path", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12538
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12539 { "req_ver", "req.ver", PAT_MATCH_STR },
12540 { "resp_ver", "res.ver", PAT_MATCH_STR },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12541
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12542 { "scook", "res.cook", PAT_MATCH_STR },
12543 { "scook_beg", "res.cook", PAT_MATCH_BEG },
12544 { "scook_dir", "res.cook", PAT_MATCH_DIR },
12545 { "scook_dom", "res.cook", PAT_MATCH_DOM },
12546 { "scook_end", "res.cook", PAT_MATCH_END },
12547 { "scook_len", "res.cook", PAT_MATCH_LEN },
12548 { "scook_reg", "res.cook", PAT_MATCH_REG },
12549 { "scook_sub", "res.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12550
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12551 { "shdr", "res.hdr", PAT_MATCH_STR },
12552 { "shdr_beg", "res.hdr", PAT_MATCH_BEG },
12553 { "shdr_dir", "res.hdr", PAT_MATCH_DIR },
12554 { "shdr_dom", "res.hdr", PAT_MATCH_DOM },
12555 { "shdr_end", "res.hdr", PAT_MATCH_END },
12556 { "shdr_len", "res.hdr", PAT_MATCH_LEN },
12557 { "shdr_reg", "res.hdr", PAT_MATCH_REG },
12558 { "shdr_sub", "res.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12559
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12560 { "url", "url", PAT_MATCH_STR },
12561 { "url_beg", "url", PAT_MATCH_BEG },
12562 { "url_dir", "url", PAT_MATCH_DIR },
12563 { "url_dom", "url", PAT_MATCH_DOM },
12564 { "url_end", "url", PAT_MATCH_END },
12565 { "url_len", "url", PAT_MATCH_LEN },
12566 { "url_reg", "url", PAT_MATCH_REG },
12567 { "url_sub", "url", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12568
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12569 { "urlp", "urlp", PAT_MATCH_STR },
12570 { "urlp_beg", "urlp", PAT_MATCH_BEG },
12571 { "urlp_dir", "urlp", PAT_MATCH_DIR },
12572 { "urlp_dom", "urlp", PAT_MATCH_DOM },
12573 { "urlp_end", "urlp", PAT_MATCH_END },
12574 { "urlp_len", "urlp", PAT_MATCH_LEN },
12575 { "urlp_reg", "urlp", PAT_MATCH_REG },
12576 { "urlp_sub", "urlp", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12577
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100[diff] [blame]12578 { /* END */ },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12579}};
12580
12581/************************************************************************/
12582/* All supported pattern keywords must be declared here. */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12583/************************************************************************/
12584/* Note: must not be declared <const> as its list will be overwritten */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12585static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12586 { "base", smp_fetch_base, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12587 { "base32", smp_fetch_base32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12588 { "base32+src", smp_fetch_base32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12589
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]12590 /* capture are allocated and are permanent in the stream */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12591 { "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]12592
12593 /* retrieve these captures from the HTTP logs */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12594 { "capture.req.method", smp_fetch_capture_req_method, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12595 { "capture.req.uri", smp_fetch_capture_req_uri, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12596 { "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]12597
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12598 { "capture.res.hdr", smp_fetch_capture_header_res, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRSHP },
12599 { "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]12600
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12601 /* cookie is valid in both directions (eg: for "stick ...") but cook*
12602 * are only here to match the ACL's name, are request-only and are used
12603 * for ACL compatibility only.
12604 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12605 { "cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12606 { "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]12607 { "cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12608 { "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]12609
12610 /* hdr is valid in both directions (eg: for "stick ...") but hdr_* are
12611 * only here to match the ACL's name, are request-only and are used for
12612 * ACL compatibility only.
12613 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12614 { "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]12615 { "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]12616 { "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]12617 { "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]12618
Willy Tarreau0a0daec2013-04-02 22:44:58 +0200[diff] [blame]12619 { "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]12620 { "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]12621 { "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]12622 { "method", smp_fetch_meth, 0, NULL, SMP_T_METH, SMP_USE_HRQHP },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12623 { "path", smp_fetch_path, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]12624 { "query", smp_fetch_query, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12625
12626 /* HTTP protocol on the request path */
12627 { "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]12628 { "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]12629
12630 /* HTTP version on the request path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12631 { "req.ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
12632 { "req_ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12633
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]12634 { "req.body", smp_fetch_body, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12635 { "req.body_len", smp_fetch_body_len, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
12636 { "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]12637 { "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]12638
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]12639 { "req.hdrs", smp_fetch_hdrs, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]12640 { "req.hdrs_bin", smp_fetch_hdrs_bin, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12641
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12642 /* HTTP version on the response path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12643 { "res.ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
12644 { "resp_ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12645
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12646 /* 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]12647 { "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]12648 { "req.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12649 { "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]12650
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12651 { "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]12652 { "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]12653 { "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]12654 { "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]12655 { "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]12656 { "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]12657 { "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]12658
12659 /* 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]12660 { "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]12661 { "res.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12662 { "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]12663
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12664 { "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]12665 { "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]12666 { "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]12667 { "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]12668 { "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]12669 { "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]12670 { "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]12671
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12672 /* scook is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12673 { "scook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12674 { "scook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12675 { "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]12676 { "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]12677
12678 /* shdr is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12679 { "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]12680 { "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]12681 { "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]12682 { "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]12683
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12684 { "status", smp_fetch_stcode, 0, NULL, SMP_T_SINT, SMP_USE_HRSHP },
Thierry Fournier0e00dca2016-04-07 15:47:40 +0200[diff] [blame]12685 { "unique-id", smp_fetch_uniqueid, 0, NULL, SMP_T_STR, SMP_SRC_L4SRV },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12686 { "url", smp_fetch_url, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12687 { "url32", smp_fetch_url32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]12688 { "url32+src", smp_fetch_url32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12689 { "url_ip", smp_fetch_url_ip, 0, NULL, SMP_T_IPV4, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12690 { "url_port", smp_fetch_url_port, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]12691 { "url_param", smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12692 { "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]12693 { "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]12694 { /* END */ },
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12695}};
12696
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12697
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12698/************************************************************************/
12699/* All supported converter keywords must be declared here. */
12700/************************************************************************/
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12701/* Note: must not be declared <const> as its list will be overwritten */
12702static struct sample_conv_kw_list sample_conv_kws = {ILH, {
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12703 { "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]12704 { "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]12705 { "capture-req", smp_conv_req_capture, ARG1(1,SINT), NULL, SMP_T_STR, SMP_T_STR},
12706 { "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]12707 { "url_dec", sample_conv_url_dec, 0, NULL, SMP_T_STR, SMP_T_STR},
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12708 { NULL, NULL, 0, 0, 0 },
12709}};
12710
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12711
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12712/************************************************************************/
12713/* All supported http-request action keywords must be declared here. */
12714/************************************************************************/
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12715struct action_kw_list http_req_actions = {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12716 .kw = {
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12717 { "capture", parse_http_req_capture },
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12718 { "set-method", parse_set_req_line },
12719 { "set-path", parse_set_req_line },
12720 { "set-query", parse_set_req_line },
12721 { "set-uri", parse_set_req_line },
Willy Tarreaucb703b02015-04-03 09:52:01 +0200[diff] [blame]12722 { NULL, NULL }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12723 }
12724};
12725
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12726struct action_kw_list http_res_actions = {
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12727 .kw = {
12728 { "capture", parse_http_res_capture },
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12729 { "set-status", parse_http_set_status },
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12730 { NULL, NULL }
12731 }
12732};
12733
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12734__attribute__((constructor))
12735static void __http_protocol_init(void)
12736{
12737 acl_register_keywords(&acl_kws);
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]12738 sample_register_fetches(&sample_fetch_keywords);
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12739 sample_register_convs(&sample_conv_kws);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12740 http_req_keywords_register(&http_req_actions);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12741 http_res_keywords_register(&http_res_actions);
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12742 cli_register_kw(&cli_kws);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12743}
12744
12745
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]12746/*
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]12747 * Local variables:
12748 * c-indent-level: 8
12749 * c-basic-offset: 8
12750 * End:
12751 */