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git01.mediatek.com / haproxy / c2a89a6aeda57207514bc9c719ef294ba1e33816 / . / src / proto_http.c
blob: 390de89ec85a53eeec0b9c2e9573c1ef3c42750a [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() */
270static struct hdr_ctx static_hdr_ctx;
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 */
Willy Tarreau973a5422015-08-05 21:47:23 +0200[diff] [blame]3665 if (unlikely((conn = si_alloc_conn(&s->si[1])) == 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;
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4215 struct connection *srv_conn;
4216 struct server *srv;
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4217 unsigned int prev_flags = s->txn->flags;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4218
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4219 /* FIXME: We need a more portable way of releasing a backend's and a
4220 * server's connections. We need a safer way to reinitialize buffer
4221 * flags. We also need a more accurate method for computing per-request
4222 * data.
4223 */
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4224 srv_conn = objt_conn(s->si[1].end);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4225
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4226 /* unless we're doing keep-alive, we want to quickly close the connection
4227 * to the server.
4228 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4229 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4230 !si_conn_ready(&s->si[1])) {
4231 s->si[1].flags |= SI_FL_NOLINGER | SI_FL_NOHALF;
4232 si_shutr(&s->si[1]);
4233 si_shutw(&s->si[1]);
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4234 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4235
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4236 if (s->flags & SF_BE_ASSIGNED) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4237 HA_ATOMIC_SUB(&be->beconn, 1);
Willy Tarreau2d5cd472012-03-01 23:34:37 +0100[diff] [blame]4238 if (unlikely(s->srv_conn))
4239 sess_change_server(s, NULL);
4240 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4241
4242 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4243 stream_process_counters(s);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4244
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4245 if (s->txn->status) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4246 int n;
4247
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4248 n = s->txn->status / 100;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4249 if (n < 1 || n > 5)
4250 n = 0;
4251
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4252 if (fe->mode == PR_MODE_HTTP) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4253 HA_ATOMIC_ADD(&fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4254 }
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4255 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4256 (be->mode == PR_MODE_HTTP)) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4257 HA_ATOMIC_ADD(&be->be_counters.p.http.rsp[n], 1);
4258 HA_ATOMIC_ADD(&be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4259 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4260 }
4261
4262 /* don't count other requests' data */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4263 s->logs.bytes_in -= s->req.buf->i;
4264 s->logs.bytes_out -= s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4265
4266 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4267 if (!LIST_ISEMPTY(&fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4268 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4269 (!(fe->options & PR_O_NULLNOLOG) || s->req.total)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4270 s->do_log(s);
4271 }
4272
Willy Tarreaud713bcc2014-06-25 15:36:04 +0200[diff] [blame]4273 /* stop tracking content-based counters */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4274 stream_stop_content_counters(s);
4275 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +0200[diff] [blame]4276
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4277 s->logs.accept_date = date; /* user-visible date for logging */
4278 s->logs.tv_accept = now; /* corrected date for internal use */
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200[diff] [blame]4279 s->logs.t_handshake = 0; /* There are no handshake in keep alive connection. */
4280 s->logs.t_idle = -1;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4281 tv_zero(&s->logs.tv_request);
4282 s->logs.t_queue = -1;
4283 s->logs.t_connect = -1;
4284 s->logs.t_data = -1;
4285 s->logs.t_close = 0;
4286 s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */
4287 s->logs.srv_queue_size = 0; /* we will get this number soon */
4288
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4289 s->logs.bytes_in = s->req.total = s->req.buf->i;
4290 s->logs.bytes_out = s->res.total = s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4291
4292 if (s->pend_pos)
4293 pendconn_free(s->pend_pos);
4294
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4295 if (objt_server(s->target)) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4296 if (s->flags & SF_CURR_SESS) {
4297 s->flags &= ~SF_CURR_SESS;
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4298 HA_ATOMIC_SUB(&objt_server(s->target)->cur_sess, 1);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4299 }
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4300 if (may_dequeue_tasks(objt_server(s->target), be))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4301 process_srv_queue(objt_server(s->target));
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4302 }
4303
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4304 s->target = NULL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4305
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4306 /* only release our endpoint if we don't intend to reuse the
4307 * connection.
4308 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4309 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4310 !si_conn_ready(&s->si[1])) {
4311 si_release_endpoint(&s->si[1]);
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4312 srv_conn = NULL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4313 }
4314
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4315 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
4316 s->si[1].err_type = SI_ET_NONE;
4317 s->si[1].conn_retries = 0; /* used for logging too */
4318 s->si[1].exp = TICK_ETERNITY;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4319 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]4320 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);
4321 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]4322 s->flags &= ~(SF_DIRECT|SF_ASSIGNED|SF_ADDR_SET|SF_BE_ASSIGNED|SF_FORCE_PRST|SF_IGNORE_PRST);
4323 s->flags &= ~(SF_CURR_SESS|SF_REDIRECTABLE|SF_SRV_REUSED);
4324 s->flags &= ~(SF_ERR_MASK|SF_FINST_MASK|SF_REDISP);
Willy Tarreau543db622012-11-15 16:41:22 +0100[diff] [blame]4325
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4326 s->txn->meth = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4327 http_reset_txn(s);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4328 s->txn->flags |= TX_NOT_FIRST | TX_WAIT_NEXT_RQ;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4329
4330 if (prev_status == 401 || prev_status == 407) {
4331 /* In HTTP keep-alive mode, if we receive a 401, we still have
4332 * a chance of being able to send the visitor again to the same
4333 * server over the same connection. This is required by some
4334 * broken protocols such as NTLM, and anyway whenever there is
4335 * an opportunity for sending the challenge to the proper place,
4336 * it's better to do it (at least it helps with debugging).
4337 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4338 s->txn->flags |= TX_PREFER_LAST;
Willy Tarreaubd99d582015-09-02 10:40:43 +0200[diff] [blame]4339 if (srv_conn)
4340 srv_conn->flags |= CO_FL_PRIVATE;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4341 }
4342
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4343 /* Never ever allow to reuse a connection from a non-reuse backend */
4344 if (srv_conn && (be->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
4345 srv_conn->flags |= CO_FL_PRIVATE;
4346
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4347 if (fe->options2 & PR_O2_INDEPSTR)
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4348 s->si[1].flags |= SI_FL_INDEP_STR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4349
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4350 if (fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4351 s->req.flags |= CF_NEVER_WAIT;
4352 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200[diff] [blame]4353 }
4354
Willy Tarreau714ea782015-11-25 20:11:11 +0100[diff] [blame]4355 /* we're removing the analysers, we MUST re-enable events detection.
4356 * We don't enable close on the response channel since it's either
4357 * already closed, or in keep-alive with an idle connection handler.
4358 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4359 channel_auto_read(&s->req);
4360 channel_auto_close(&s->req);
4361 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4362
Willy Tarreau1c59bd52015-11-02 20:20:11 +0100[diff] [blame]4363 /* we're in keep-alive with an idle connection, monitor it if not already done */
4364 if (srv_conn && LIST_ISEMPTY(&srv_conn->list)) {
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4365 srv = objt_server(srv_conn->target);
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4366 if (!srv)
4367 si_idle_conn(&s->si[1], NULL);
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4368 else if (srv_conn->flags & CO_FL_PRIVATE)
Christopher Faulet40a007c2017-07-03 15:41:01 +0200[diff] [blame]4369 si_idle_conn(&s->si[1], (srv->priv_conns ? &srv->priv_conns[tid] : NULL));
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4370 else if (prev_flags & TX_NOT_FIRST)
4371 /* note: we check the request, not the connection, but
4372 * this is valid for strategies SAFE and AGGR, and in
4373 * case of ALWS, we don't care anyway.
4374 */
Christopher Faulet40a007c2017-07-03 15:41:01 +0200[diff] [blame]4375 si_idle_conn(&s->si[1], (srv->safe_conns ? &srv->safe_conns[tid] : NULL));
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4376 else
Christopher Faulet40a007c2017-07-03 15:41:01 +0200[diff] [blame]4377 si_idle_conn(&s->si[1], (srv->idle_conns ? &srv->idle_conns[tid] : NULL));
Willy Tarreau4320eaa2015-08-05 11:08:30 +0200[diff] [blame]4378 }
Christopher Faulete6006242017-03-10 11:52:44 +0100[diff] [blame]4379 s->req.analysers = strm_li(s) ? strm_li(s)->analysers : 0;
4380 s->res.analysers = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4381}
4382
4383
4384/* This function updates the request state machine according to the response
4385 * state machine and buffer flags. It returns 1 if it changes anything (flag
4386 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4387 * it is only used to find when a request/response couple is complete. Both
4388 * this function and its equivalent should loop until both return zero. It
4389 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4390 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4391int http_sync_req_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4392{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4393 struct channel *chn = &s->req;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4394 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4395 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4396 unsigned int old_state = txn->req.msg_state;
4397
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4398 if (unlikely(txn->req.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4399 return 0;
4400
4401 if (txn->req.msg_state == HTTP_MSG_DONE) {
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4402 /* No need to read anymore, the request was completely parsed.
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4403 * We can shut the read side unless we want to abort_on_close,
4404 * or we have a POST request. The issue with POST requests is
4405 * that some browsers still send a CRLF after the request, and
4406 * this CRLF must be read so that it does not remain in the kernel
4407 * buffers, otherwise a close could cause an RST on some systems
4408 * (eg: Linux).
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4409 * Note that if we're using keep-alive on the client side, we'd
4410 * rather poll now and keep the polling enabled for the whole
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4411 * stream's life than enabling/disabling it between each
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4412 * response and next request.
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4413 */
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4414 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4415 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
4416 !(s->be->options & PR_O_ABRT_CLOSE) &&
4417 txn->meth != HTTP_METH_POST)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4418 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4419
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4420 /* if the server closes the connection, we want to immediately react
4421 * and close the socket to save packets and syscalls.
4422 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4423 s->si[1].flags |= SI_FL_NOHALF;
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4424
Willy Tarreau7f876a12015-11-18 11:59:55 +0100[diff] [blame]4425 /* In any case we've finished parsing the request so we must
4426 * disable Nagle when sending data because 1) we're not going
4427 * to shut this side, and 2) the server is waiting for us to
4428 * send pending data.
4429 */
4430 chn->flags |= CF_NEVER_WAIT;
4431
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4432 if (txn->rsp.msg_state == HTTP_MSG_ERROR)
4433 goto wait_other_side;
4434
4435 if (txn->rsp.msg_state < HTTP_MSG_DONE) {
4436 /* The server has not finished to respond, so we
4437 * don't want to move in order not to upset it.
4438 */
4439 goto wait_other_side;
4440 }
4441
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4442 /* When we get here, it means that both the request and the
4443 * response have finished receiving. Depending on the connection
4444 * mode, we'll have to wait for the last bytes to leave in either
4445 * direction, and sometimes for a close to be effective.
4446 */
4447
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4448 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4449 /* Server-close mode : queue a connection close to the server */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4450 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW)))
4451 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4452 }
4453 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4454 /* Option forceclose is set, or either side wants to close,
4455 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4456 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4457 * once both states are CLOSED.
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4458 *
4459 * However, there is an exception if the response
4460 * length is undefined. In this case, we need to wait
4461 * the close from the server. The response will be
4462 * switched in TUNNEL mode until the end.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4463 */
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4464 if (!(txn->rsp.flags & HTTP_MSGF_XFER_LEN) &&
4465 txn->rsp.msg_state != HTTP_MSG_CLOSED)
4466 goto check_channel_flags;
4467
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4468 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
4469 channel_shutr_now(chn);
4470 channel_shutw_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4471 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4472 }
4473 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4474 /* The last possible modes are keep-alive and tunnel. Tunnel mode
4475 * will not have any analyser so it needs to poll for reads.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4476 */
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4477 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN) {
4478 channel_auto_read(chn);
4479 txn->req.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4480 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4481 }
4482
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4483 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4484 }
4485
4486 if (txn->req.msg_state == HTTP_MSG_CLOSING) {
4487 http_msg_closing:
4488 /* nothing else to forward, just waiting for the output buffer
4489 * to be empty and for the shutw_now to take effect.
4490 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4491 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4492 txn->req.msg_state = HTTP_MSG_CLOSED;
4493 goto http_msg_closed;
4494 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4495 else if (chn->flags & CF_SHUTW) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4496 txn->req.err_state = txn->req.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4497 txn->req.msg_state = HTTP_MSG_ERROR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4498 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4499 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4500 }
4501
4502 if (txn->req.msg_state == HTTP_MSG_CLOSED) {
4503 http_msg_closed:
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4504 /* see above in MSG_DONE why we only do this in these states */
4505 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4506 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
4507 !(s->be->options & PR_O_ABRT_CLOSE))
Willy Tarreau2e7a1652013-12-15 15:32:10 +0100[diff] [blame]4508 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4509 goto wait_other_side;
4510 }
4511
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4512 check_channel_flags:
4513 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4514 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4515 /* if we've just closed an output, let's switch */
4516 s->si[1].flags |= SI_FL_NOLINGER; /* we want to close ASAP */
4517 txn->req.msg_state = HTTP_MSG_CLOSING;
4518 goto http_msg_closing;
4519 }
4520
4521
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4522 wait_other_side:
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4523 return txn->req.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4524}
4525
4526
4527/* This function updates the response state machine according to the request
4528 * state machine and buffer flags. It returns 1 if it changes anything (flag
4529 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4530 * it is only used to find when a request/response couple is complete. Both
4531 * this function and its equivalent should loop until both return zero. It
4532 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4533 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4534int http_sync_res_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4535{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4536 struct channel *chn = &s->res;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4537 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4538 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4539 unsigned int old_state = txn->rsp.msg_state;
4540
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4541 if (unlikely(txn->rsp.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4542 return 0;
4543
4544 if (txn->rsp.msg_state == HTTP_MSG_DONE) {
4545 /* In theory, we don't need to read anymore, but we must
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4546 * still monitor the server connection for a possible close
4547 * while the request is being uploaded, so we don't disable
4548 * reading.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4549 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4550 /* channel_dont_read(chn); */
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4551
4552 if (txn->req.msg_state == HTTP_MSG_ERROR)
4553 goto wait_other_side;
4554
4555 if (txn->req.msg_state < HTTP_MSG_DONE) {
4556 /* The client seems to still be sending data, probably
4557 * because we got an error response during an upload.
4558 * We have the choice of either breaking the connection
4559 * or letting it pass through. Let's do the later.
4560 */
4561 goto wait_other_side;
4562 }
4563
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4564 /* When we get here, it means that both the request and the
4565 * response have finished receiving. Depending on the connection
4566 * mode, we'll have to wait for the last bytes to leave in either
4567 * direction, and sometimes for a close to be effective.
4568 */
4569
4570 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4571 /* Server-close mode : shut read and wait for the request
4572 * side to close its output buffer. The caller will detect
4573 * when we're in DONE and the other is in CLOSED and will
4574 * catch that for the final cleanup.
4575 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4576 if (!(chn->flags & (CF_SHUTR|CF_SHUTR_NOW)))
4577 channel_shutr_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4578 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4579 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4580 /* Option forceclose is set, or either side wants to close,
4581 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4582 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4583 * once both states are CLOSED.
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4584 *
4585 * However, there is an exception if the response length
4586 * is undefined. In this case, we switch in TUNNEL mode.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4587 */
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4588 if (!(txn->rsp.flags & HTTP_MSGF_XFER_LEN)) {
4589 channel_auto_read(chn);
4590 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
4591 chn->flags |= CF_NEVER_WAIT;
4592 }
4593 else if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4594 channel_shutr_now(chn);
4595 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4596 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4597 }
4598 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4599 /* The last possible modes are keep-alive and tunnel. Tunnel will
4600 * need to forward remaining data. Keep-alive will need to monitor
4601 * for connection closing.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4602 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4603 channel_auto_read(chn);
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4604 chn->flags |= CF_NEVER_WAIT;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4605 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN)
4606 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4607 }
4608
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4609 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4610 }
4611
4612 if (txn->rsp.msg_state == HTTP_MSG_CLOSING) {
4613 http_msg_closing:
4614 /* nothing else to forward, just waiting for the output buffer
4615 * to be empty and for the shutw_now to take effect.
4616 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4617 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4618 txn->rsp.msg_state = HTTP_MSG_CLOSED;
4619 goto http_msg_closed;
4620 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4621 else if (chn->flags & CF_SHUTW) {
Christopher Fauleta3992e02017-07-18 10:35:55 +0200[diff] [blame]4622 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4623 txn->rsp.msg_state = HTTP_MSG_ERROR;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4624 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4625 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4626 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4627 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4628 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4629 }
4630
4631 if (txn->rsp.msg_state == HTTP_MSG_CLOSED) {
4632 http_msg_closed:
4633 /* drop any pending data */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]4634 channel_truncate(chn);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4635 channel_auto_close(chn);
4636 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4637 goto wait_other_side;
4638 }
4639
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4640 check_channel_flags:
4641 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4642 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4643 /* if we've just closed an output, let's switch */
4644 txn->rsp.msg_state = HTTP_MSG_CLOSING;
4645 goto http_msg_closing;
4646 }
4647
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4648 wait_other_side:
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4649 /* We force the response to leave immediately if we're waiting for the
4650 * other side, since there is no pending shutdown to push it out.
4651 */
4652 if (!channel_is_empty(chn))
4653 chn->flags |= CF_SEND_DONTWAIT;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4654 return txn->rsp.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4655}
4656
4657
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4658/* Resync the request and response state machines. */
4659void http_resync_states(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4660{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4661 struct http_txn *txn = s->txn;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4662#ifdef DEBUG_FULL
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4663 int old_req_state = txn->req.msg_state;
4664 int old_res_state = txn->rsp.msg_state;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4665#endif
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4666
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4667 http_sync_req_state(s);
4668 while (1) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4669 if (!http_sync_res_state(s))
4670 break;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4671 if (!http_sync_req_state(s))
4672 break;
4673 }
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]4674
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4675 DPRINTF(stderr,"[%u] %s: stream=%p old=%s,%s cur=%s,%s "
4676 "req->analysers=0x%08x res->analysers=0x%08x\n",
4677 now_ms, __FUNCTION__, s,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]4678 h1_msg_state_str(old_req_state), h1_msg_state_str(old_res_state),
4679 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]4680 s->req.analysers, s->res.analysers);
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4681
4682
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4683 /* OK, both state machines agree on a compatible state.
4684 * There are a few cases we're interested in :
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4685 * - HTTP_MSG_CLOSED on both sides means we've reached the end in both
4686 * directions, so let's simply disable both analysers.
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4687 * - HTTP_MSG_CLOSED on the response only or HTTP_MSG_ERROR on either
4688 * means we must abort the request.
4689 * - HTTP_MSG_TUNNEL on either means we have to disable analyser on
4690 * corresponding channel.
4691 * - HTTP_MSG_DONE or HTTP_MSG_CLOSED on the request and HTTP_MSG_DONE
4692 * on the response with server-close mode means we've completed one
4693 * request and we must re-initialize the server connection.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4694 */
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4695 if (txn->req.msg_state == HTTP_MSG_CLOSED &&
4696 txn->rsp.msg_state == HTTP_MSG_CLOSED) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4697 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4698 channel_auto_close(&s->req);
4699 channel_auto_read(&s->req);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4700 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4701 channel_auto_close(&s->res);
4702 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4703 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4704 else if (txn->rsp.msg_state == HTTP_MSG_CLOSED ||
4705 txn->rsp.msg_state == HTTP_MSG_ERROR ||
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4706 txn->req.msg_state == HTTP_MSG_ERROR) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4707 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4708 channel_auto_close(&s->res);
4709 channel_auto_read(&s->res);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4710 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4711 channel_abort(&s->req);
4712 channel_auto_close(&s->req);
4713 channel_auto_read(&s->req);
4714 channel_truncate(&s->req);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4715 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4716 else if (txn->req.msg_state == HTTP_MSG_TUNNEL ||
4717 txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4718 if (txn->req.msg_state == HTTP_MSG_TUNNEL) {
4719 s->req.analysers &= AN_REQ_FLT_END;
4720 if (HAS_REQ_DATA_FILTERS(s))
4721 s->req.analysers |= AN_REQ_FLT_XFER_DATA;
4722 }
4723 if (txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4724 s->res.analysers &= AN_RES_FLT_END;
4725 if (HAS_RSP_DATA_FILTERS(s))
4726 s->res.analysers |= AN_RES_FLT_XFER_DATA;
4727 }
4728 channel_auto_close(&s->req);
4729 channel_auto_read(&s->req);
4730 channel_auto_close(&s->res);
4731 channel_auto_read(&s->res);
4732 }
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4733 else if ((txn->req.msg_state == HTTP_MSG_DONE ||
4734 txn->req.msg_state == HTTP_MSG_CLOSED) &&
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4735 txn->rsp.msg_state == HTTP_MSG_DONE &&
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4736 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
4737 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
4738 /* server-close/keep-alive: terminate this transaction,
4739 * possibly killing the server connection and reinitialize
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4740 * a fresh-new transaction, but only once we're sure there's
4741 * enough room in the request and response buffer to process
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]4742 * another request. They must not hold any pending output data
4743 * and the response buffer must realigned
4744 * (realign is done is http_end_txn_clean_session).
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4745 */
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4746 if (s->req.buf->o)
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4747 s->req.flags |= CF_WAKE_WRITE;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4748 else if (s->res.buf->o)
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4749 s->res.flags |= CF_WAKE_WRITE;
Christopher Fauleta81ff602017-07-18 22:01:05 +0200[diff] [blame]4750 else {
4751 s->req.analysers = AN_REQ_FLT_END;
4752 s->res.analysers = AN_RES_FLT_END;
4753 txn->flags |= TX_WAIT_CLEANUP;
4754 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4755 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4756}
4757
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4758/* This function is an analyser which forwards request body (including chunk
4759 * sizes if any). It is called as soon as we must forward, even if we forward
4760 * zero byte. The only situation where it must not be called is when we're in
4761 * tunnel mode and we want to forward till the close. It's used both to forward
4762 * remaining data and to resync after end of body. It expects the msg_state to
4763 * 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]4764 * 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]4765 * When in MSG_DATA or MSG_TRAILERS, it will automatically forward chunk_len
Willy Tarreauc24715e2014-04-17 15:21:20 +0200[diff] [blame]4766 * bytes of pending data + the headers if not already done.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4767 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4768int http_request_forward_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4769{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4770 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4771 struct http_txn *txn = s->txn;
4772 struct http_msg *msg = &s->txn->req;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]4773 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4774
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4775 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
4776 now_ms, __FUNCTION__,
4777 s,
4778 req,
4779 req->rex, req->wex,
4780 req->flags,
4781 req->buf->i,
4782 req->analysers);
4783
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4784 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
4785 return 0;
4786
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4787 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]4788 ((req->flags & CF_SHUTW) && (req->to_forward || req->buf->o))) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4789 /* Output closed while we were sending data. We must abort and
4790 * wake the other side up.
4791 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4792 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4793 msg->msg_state = HTTP_MSG_ERROR;
4794 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]4795 return 1;
4796 }
4797
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4798 /* Note that we don't have to send 100-continue back because we don't
4799 * need the data to complete our job, and it's up to the server to
4800 * decide whether to return 100, 417 or anything else in return of
4801 * an "Expect: 100-continue" header.
4802 */
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4803 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4804 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
4805 ? HTTP_MSG_CHUNK_SIZE
4806 : HTTP_MSG_DATA);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4807
4808 /* TODO/filters: when http-buffer-request option is set or if a
4809 * rule on url_param exists, the first chunk size could be
4810 * already parsed. In that case, msg->next is after the chunk
4811 * size (including the CRLF after the size). So this case should
4812 * be handled to */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4813 }
4814
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4815 /* Some post-connect processing might want us to refrain from starting to
4816 * forward data. Currently, the only reason for this is "balance url_param"
4817 * whichs need to parse/process the request after we've enabled forwarding.
4818 */
4819 if (unlikely(msg->flags & HTTP_MSGF_WAIT_CONN)) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4820 if (!(s->res.flags & CF_READ_ATTACHED)) {
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4821 channel_auto_connect(req);
Willy Tarreau644c1012014-04-30 18:11:11 +0200[diff] [blame]4822 req->flags |= CF_WAKE_CONNECT;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4823 goto missing_data_or_waiting;
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4824 }
4825 msg->flags &= ~HTTP_MSGF_WAIT_CONN;
4826 }
4827
Willy Tarreau80a92c02014-03-12 10:41:13 +0100[diff] [blame]4828 /* in most states, we should abort in case of early close */
4829 channel_auto_close(req);
4830
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4831 if (req->to_forward) {
4832 /* We can't process the buffer's contents yet */
4833 req->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4834 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4835 }
4836
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4837 if (msg->msg_state < HTTP_MSG_DONE) {
4838 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
4839 ? http_msg_forward_chunked_body(s, msg)
4840 : http_msg_forward_body(s, msg));
4841 if (!ret)
4842 goto missing_data_or_waiting;
4843 if (ret < 0)
4844 goto return_bad_req;
4845 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4846
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4847 /* other states, DONE...TUNNEL */
4848 /* we don't want to forward closes on DONE except in tunnel mode. */
4849 if ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
4850 channel_dont_close(req);
Willy Tarreau5c54c712010-07-17 08:02:58 +0200[diff] [blame]4851
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4852 http_resync_states(s);
4853 if (!(req->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4854 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
4855 if (req->flags & CF_SHUTW) {
4856 /* request errors are most likely due to the
4857 * server aborting the transfer. */
4858 goto aborted_xfer;
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4859 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4860 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]4861 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]4862 goto return_bad_req;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4863 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4864 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4865 }
4866
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4867 /* If "option abortonclose" is set on the backend, we want to monitor
4868 * the client's connection and forward any shutdown notification to the
4869 * server, which will decide whether to close or to go on processing the
4870 * request. We only do that in tunnel mode, and not in other modes since
4871 * it can be abused to exhaust source ports. */
4872 if (s->be->options & PR_O_ABRT_CLOSE) {
4873 channel_auto_read(req);
4874 if ((req->flags & (CF_SHUTR|CF_READ_NULL)) &&
4875 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN))
4876 s->si[1].flags |= SI_FL_NOLINGER;
4877 channel_auto_close(req);
4878 }
4879 else if (s->txn->meth == HTTP_METH_POST) {
4880 /* POST requests may require to read extra CRLF sent by broken
4881 * browsers and which could cause an RST to be sent upon close
4882 * on some systems (eg: Linux). */
4883 channel_auto_read(req);
4884 }
4885 return 0;
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]4886
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4887 missing_data_or_waiting:
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4888 /* stop waiting for data if the input is closed before the end */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]4889 if (msg->msg_state < HTTP_MSG_ENDING && req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4890 if (!(s->flags & SF_ERR_MASK))
4891 s->flags |= SF_ERR_CLICL;
4892 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4893 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4894 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4895 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4896 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4897 }
4898
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4899 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
4900 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4901 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4902 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4903
4904 goto return_bad_req_stats_ok;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4905 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4906
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4907 /* waiting for the last bits to leave the buffer */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4908 if (req->flags & CF_SHUTW)
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4909 goto aborted_xfer;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4910
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]4911 /* When TE: chunked is used, we need to get there again to parse remaining
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4912 * 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]4913 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4914 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4915 channel_dont_close(req);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]4916
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4917 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4918 * 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]4919 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]4920 * modes are already handled by the stream sock layer. We must not do
4921 * this in content-length mode because it could present the MSG_MORE
4922 * flag with the last block of forwarded data, which would cause an
4923 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4924 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4925 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4926 req->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4927
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4928 return 0;
4929
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4930 return_bad_req: /* let's centralize all bad requests */
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4931 HA_ATOMIC_ADD(&sess->fe->fe_counters.failed_req, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4932 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]4933 HA_ATOMIC_ADD(&sess->listener->counters->failed_req, 1);
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]4934
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4935 return_bad_req_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4936 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4937 txn->req.msg_state = HTTP_MSG_ERROR;
4938 if (txn->status) {
4939 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4940 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4941 } else {
4942 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4943 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4944 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4945 req->analysers &= AN_REQ_FLT_END;
4946 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]4947
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4948 if (!(s->flags & SF_ERR_MASK))
4949 s->flags |= SF_ERR_PRXCOND;
4950 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4951 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4952 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4953 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4954 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4955 }
4956 return 0;
4957
4958 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4959 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4960 txn->req.msg_state = HTTP_MSG_ERROR;
4961 if (txn->status) {
4962 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4963 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4964 } else {
4965 txn->status = 502;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4966 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4967 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4968 req->analysers &= AN_REQ_FLT_END;
4969 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]4970
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]4971 HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
4972 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4973 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]4974 HA_ATOMIC_ADD(&objt_server(s->target)->counters.srv_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4975
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4976 if (!(s->flags & SF_ERR_MASK))
4977 s->flags |= SF_ERR_SRVCL;
4978 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4979 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4980 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4981 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4982 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4983 }
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4984 return 0;
4985}
4986
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4987/* This stream analyser waits for a complete HTTP response. It returns 1 if the
4988 * processing can continue on next analysers, or zero if it either needs more
4989 * data or wants to immediately abort the response (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4990 * 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]4991 * when it has nothing left to do, and may remove any analyser when it wants to
4992 * abort.
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]4993 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4994int http_wait_for_response(struct stream *s, struct channel *rep, int an_bit)
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]4995{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4996 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4997 struct http_txn *txn = s->txn;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4998 struct http_msg *msg = &txn->rsp;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]4999 struct hdr_ctx ctx;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5000 int use_close_only;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5001 int cur_idx;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5002 int n;
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]5003
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5004 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]5005 now_ms, __FUNCTION__,
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5006 s,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5007 rep,
5008 rep->rex, rep->wex,
5009 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5010 rep->buf->i,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5011 rep->analysers);
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200[diff] [blame]5012
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5013 /*
5014 * Now parse the partial (or complete) lines.
5015 * We will check the response syntax, and also join multi-line
5016 * headers. An index of all the lines will be elaborated while
5017 * parsing.
5018 *
5019 * For the parsing, we use a 28 states FSM.
5020 *
5021 * Here is the information we currently have :
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5022 * rep->buf->p = beginning of response
5023 * rep->buf->p + msg->eoh = end of processed headers / start of current one
5024 * rep->buf->p + rep->buf->i = end of input data
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]5025 * msg->eol = end of current header or line (LF or CRLF)
5026 * msg->next = first non-visited byte
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5027 */
5028
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5029 next_one:
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5030 /* There's a protected area at the end of the buffer for rewriting
5031 * purposes. We don't want to start to parse the request if the
5032 * protected area is affected, because we may have to move processed
5033 * data later, which is much more complicated.
5034 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5035 if (buffer_not_empty(rep->buf) && msg->msg_state < HTTP_MSG_ERROR) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]5036 if (unlikely(!channel_is_rewritable(rep))) {
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5037 /* some data has still not left the buffer, wake us once that's done */
5038 if (rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
5039 goto abort_response;
5040 channel_dont_close(rep);
5041 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]5042 rep->flags |= CF_WAKE_WRITE;
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5043 return 0;
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5044 }
5045
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5046 if (unlikely(bi_end(rep->buf) < b_ptr(rep->buf, msg->next) ||
5047 bi_end(rep->buf) > rep->buf->data + rep->buf->size - global.tune.maxrewrite))
5048 buffer_slow_realign(rep->buf);
5049
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5050 if (likely(msg->next < rep->buf->i))
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]5051 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5052 }
5053
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5054 /* 1: we might have to print this header in debug mode */
5055 if (unlikely((global.mode & MODE_DEBUG) &&
5056 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]5057 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5058 char *eol, *sol;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5059
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5060 sol = rep->buf->p;
5061 eol = sol + (msg->sl.st.l ? msg->sl.st.l : rep->buf->i);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5062 debug_hdr("srvrep", s, sol, eol);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5063
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5064 sol += hdr_idx_first_pos(&txn->hdr_idx);
5065 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5066
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5067 while (cur_idx) {
5068 eol = sol + txn->hdr_idx.v[cur_idx].len;
5069 debug_hdr("srvhdr", s, sol, eol);
5070 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
5071 cur_idx = txn->hdr_idx.v[cur_idx].next;
5072 }
5073 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5074
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5075 /*
5076 * Now we quickly check if we have found a full valid response.
5077 * If not so, we check the FD and buffer states before leaving.
5078 * A full response is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5079 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5080 * responses are checked first.
5081 *
5082 * Depending on whether the client is still there or not, we
5083 * may send an error response back or not. Note that normally
5084 * we should only check for HTTP status there, and check I/O
5085 * errors somewhere else.
5086 */
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5087
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5088 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5089 /* Invalid response */
5090 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
5091 /* we detected a parsing error. We want to archive this response
5092 * in the dedicated proxy area for later troubleshooting.
5093 */
5094 hdr_response_bad:
5095 if (msg->msg_state == HTTP_MSG_ERROR || msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5096 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]5097
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5098 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5099 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5100 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5101 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5102 }
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]5103 abort_response:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5104 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5105 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5106 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5107 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5108 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5109 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5110
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5111 if (!(s->flags & SF_ERR_MASK))
5112 s->flags |= SF_ERR_PRXCOND;
5113 if (!(s->flags & SF_FINST_MASK))
5114 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5115
5116 return 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5117 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5118
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5119 /* too large response does not fit in buffer. */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5120 else if (buffer_full(rep->buf, global.tune.maxrewrite)) {
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]5121 if (msg->err_pos < 0)
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5122 msg->err_pos = rep->buf->i;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5123 goto hdr_response_bad;
5124 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5125
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5126 /* read error */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5127 else if (rep->flags & CF_READ_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5128 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5129 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]5130 else if (txn->flags & TX_NOT_FIRST)
5131 goto abort_keep_alive;
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5132
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5133 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5134 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5135 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5136 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_ERROR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5137 }
Willy Tarreau461f6622008-08-15 23:43:19 +0200[diff] [blame]5138
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5139 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5140 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5141 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5142 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5143 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5144 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau816b9792009-09-15 21:25:21 +0200[diff] [blame]5145
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5146 if (!(s->flags & SF_ERR_MASK))
5147 s->flags |= SF_ERR_SRVCL;
5148 if (!(s->flags & SF_FINST_MASK))
5149 s->flags |= SF_FINST_H;
Willy Tarreaucebf57e2008-08-15 18:16:37 +0200[diff] [blame]5150 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5151 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5152
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +0200[diff] [blame]5153 /* read timeout : return a 504 to the client. */
5154 else if (rep->flags & CF_READ_TIMEOUT) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5155 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5156 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5157
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5158 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5159 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5160 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5161 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_TIMEOUT);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5162 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5163
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5164 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5165 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5166 txn->status = 504;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5167 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5168 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5169 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5170
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5171 if (!(s->flags & SF_ERR_MASK))
5172 s->flags |= SF_ERR_SRVTO;
5173 if (!(s->flags & SF_FINST_MASK))
5174 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5175 return 0;
5176 }
Willy Tarreaua7c52762008-08-16 18:40:18 +0200[diff] [blame]5177
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5178 /* client abort with an abortonclose */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5179 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]5180 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
5181 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5182 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5183 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5184
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5185 rep->analysers &= AN_RES_FLT_END;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5186 channel_auto_close(rep);
5187
5188 txn->status = 400;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5189 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5190 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5191
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5192 if (!(s->flags & SF_ERR_MASK))
5193 s->flags |= SF_ERR_CLICL;
5194 if (!(s->flags & SF_FINST_MASK))
5195 s->flags |= SF_FINST_H;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5196
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5197 /* process_stream() will take care of the error */
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5198 return 0;
5199 }
5200
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5201 /* close from server, capture the response if the server has started to respond */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5202 else if (rep->flags & CF_SHUTR) {
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5203 if (msg->msg_state >= HTTP_MSG_RPVER || msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5204 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]5205 else if (txn->flags & TX_NOT_FIRST)
5206 goto abort_keep_alive;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5207
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5208 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5209 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5210 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5211 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_BROKEN_PIPE);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5212 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5213
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5214 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5215 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5216 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5217 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5218 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5219 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5220
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5221 if (!(s->flags & SF_ERR_MASK))
5222 s->flags |= SF_ERR_SRVCL;
5223 if (!(s->flags & SF_FINST_MASK))
5224 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5225 return 0;
5226 }
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5227
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5228 /* write error to client (we don't send any message then) */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5229 else if (rep->flags & CF_WRITE_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5230 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5231 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]5232 else if (txn->flags & TX_NOT_FIRST)
5233 goto abort_keep_alive;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5234
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5235 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5236 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5237 channel_auto_close(rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5238
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5239 if (!(s->flags & SF_ERR_MASK))
5240 s->flags |= SF_ERR_CLICL;
5241 if (!(s->flags & SF_FINST_MASK))
5242 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5243
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5244 /* process_stream() will take care of the error */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5245 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5246 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5247
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5248 channel_dont_close(rep);
Willy Tarreau3f3997e2013-12-15 15:21:32 +0100[diff] [blame]5249 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5250 return 0;
5251 }
5252
5253 /* More interesting part now : we know that we have a complete
5254 * response which at least looks like HTTP. We have an indicator
5255 * of each header's length, so we can parse them quickly.
5256 */
5257
5258 if (unlikely(msg->err_pos >= 0))
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]5259 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]5260
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5261 /*
5262 * 1: get the status code
5263 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5264 n = rep->buf->p[msg->sl.st.c] - '0';
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5265 if (n < 1 || n > 5)
5266 n = 0;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5267 /* when the client triggers a 4xx from the server, it's most often due
5268 * to a missing object or permission. These events should be tracked
5269 * because if they happen often, it may indicate a brute force or a
5270 * vulnerability scan.
5271 */
5272 if (n == 4)
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5273 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5274
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5275 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5276 HA_ATOMIC_ADD(&objt_server(s->target)->counters.p.http.rsp[n], 1);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5277
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]5278 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
5279 * exactly one digit "." one digit. This check may be disabled using
5280 * option accept-invalid-http-response.
5281 */
5282 if (!(s->be->options2 & PR_O2_RSPBUG_OK)) {
5283 if (msg->sl.st.v_l != 8) {
5284 msg->err_pos = 0;
5285 goto hdr_response_bad;
5286 }
5287
5288 if (rep->buf->p[4] != '/' ||
5289 !isdigit((unsigned char)rep->buf->p[5]) ||
5290 rep->buf->p[6] != '.' ||
5291 !isdigit((unsigned char)rep->buf->p[7])) {
5292 msg->err_pos = 4;
5293 goto hdr_response_bad;
5294 }
5295 }
5296
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5297 /* check if the response is HTTP/1.1 or above */
5298 if ((msg->sl.st.v_l == 8) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5299 ((rep->buf->p[5] > '1') ||
5300 ((rep->buf->p[5] == '1') && (rep->buf->p[7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5301 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5302
5303 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]5304 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]5305
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5306 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5307 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5308
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5309 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]5310
Willy Tarreau39650402010-03-15 19:44:39 +0100[diff] [blame]5311 /* Adjust server's health based on status code. Note: status codes 501
5312 * and 505 are triggered on demand by client request, so we must not
5313 * count them as server failures.
5314 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5315 if (objt_server(s->target)) {
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5316 if (txn->status >= 100 && (txn->status < 500 || txn->status == 501 || txn->status == 505))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5317 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_OK);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5318 else
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5319 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_STS);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5320 }
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5321
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5322 /*
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5323 * We may be facing a 100-continue response, or any other informational
5324 * 1xx response which is non-final, in which case this is not the right
5325 * response, and we're waiting for the next one. Let's allow this response
5326 * to go to the client and wait for the next one. There's an exception for
5327 * 101 which is used later in the code to switch protocols.
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5328 */
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5329 if (txn->status < 200 &&
5330 (txn->status == 100 || txn->status >= 102)) {
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5331 hdr_idx_init(&txn->hdr_idx);
5332 msg->next -= channel_forward(rep, msg->next);
5333 msg->msg_state = HTTP_MSG_RPBEFORE;
5334 txn->status = 0;
5335 s->logs.t_data = -1; /* was not a response yet */
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5336 FLT_STRM_CB(s, flt_http_reset(s, msg));
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5337 goto next_one;
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5338 }
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5339
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5340 /*
5341 * 2: check for cacheability.
5342 */
5343
5344 switch (txn->status) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5345 case 200:
5346 case 203:
5347 case 206:
5348 case 300:
5349 case 301:
5350 case 410:
5351 /* RFC2616 @13.4:
5352 * "A response received with a status code of
5353 * 200, 203, 206, 300, 301 or 410 MAY be stored
5354 * by a cache (...) unless a cache-control
5355 * directive prohibits caching."
5356 *
5357 * RFC2616 @9.5: POST method :
5358 * "Responses to this method are not cacheable,
5359 * unless the response includes appropriate
5360 * Cache-Control or Expires header fields."
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5361 */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5362 if (likely(txn->meth != HTTP_METH_POST) &&
Willy Tarreau67402132012-05-31 20:40:20 +0200[diff] [blame]5363 ((s->be->options & PR_O_CHK_CACHE) || (s->be->ck_opts & PR_CK_NOC)))
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5364 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
5365 break;
5366 default:
5367 break;
5368 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5369
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5370 /*
5371 * 3: we may need to capture headers
5372 */
5373 s->logs.logwait &= ~LW_RESP;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5374 if (unlikely((s->logs.logwait & LW_RSPHDR) && s->res_cap))
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5375 capture_headers(rep->buf->p, &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5376 s->res_cap, sess->fe->rsp_cap);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5377
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5378 /* 4: determine the transfer-length according to RFC2616 #4.4, updated
5379 * by RFC7230#3.3.3 :
5380 *
5381 * The length of a message body is determined by one of the following
5382 * (in order of precedence):
5383 *
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5384 * 1. Any 2xx (Successful) response to a CONNECT request implies that
5385 * the connection will become a tunnel immediately after the empty
5386 * line that concludes the header fields. A client MUST ignore
5387 * any Content-Length or Transfer-Encoding header fields received
5388 * in such a message. Any 101 response (Switching Protocols) is
5389 * managed in the same manner.
5390 *
5391 * 2. Any response to a HEAD request and any response with a 1xx
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5392 * (Informational), 204 (No Content), or 304 (Not Modified) status
5393 * code is always terminated by the first empty line after the
5394 * header fields, regardless of the header fields present in the
5395 * message, and thus cannot contain a message body.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5396 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5397 * 3. If a Transfer-Encoding header field is present and the chunked
5398 * transfer coding (Section 4.1) is the final encoding, the message
5399 * body length is determined by reading and decoding the chunked
5400 * data until the transfer coding indicates the data is complete.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5401 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5402 * If a Transfer-Encoding header field is present in a response and
5403 * the chunked transfer coding is not the final encoding, the
5404 * message body length is determined by reading the connection until
5405 * it is closed by the server. If a Transfer-Encoding header field
5406 * is present in a request and the chunked transfer coding is not
5407 * the final encoding, the message body length cannot be determined
5408 * reliably; the server MUST respond with the 400 (Bad Request)
5409 * status code and then close the connection.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5410 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5411 * If a message is received with both a Transfer-Encoding and a
5412 * Content-Length header field, the Transfer-Encoding overrides the
5413 * Content-Length. Such a message might indicate an attempt to
5414 * perform request smuggling (Section 9.5) or response splitting
5415 * (Section 9.4) and ought to be handled as an error. A sender MUST
5416 * remove the received Content-Length field prior to forwarding such
5417 * a message downstream.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5418 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5419 * 4. If a message is received without Transfer-Encoding and with
5420 * either multiple Content-Length header fields having differing
5421 * field-values or a single Content-Length header field having an
5422 * invalid value, then the message framing is invalid and the
5423 * recipient MUST treat it as an unrecoverable error. If this is a
5424 * request message, the server MUST respond with a 400 (Bad Request)
5425 * status code and then close the connection. If this is a response
5426 * message received by a proxy, the proxy MUST close the connection
5427 * to the server, discard the received response, and send a 502 (Bad
5428 * Gateway) response to the client. If this is a response message
5429 * received by a user agent, the user agent MUST close the
5430 * connection to the server and discard the received response.
5431 *
5432 * 5. If a valid Content-Length header field is present without
5433 * Transfer-Encoding, its decimal value defines the expected message
5434 * body length in octets. If the sender closes the connection or
5435 * the recipient times out before the indicated number of octets are
5436 * received, the recipient MUST consider the message to be
5437 * incomplete and close the connection.
5438 *
5439 * 6. If this is a request message and none of the above are true, then
5440 * the message body length is zero (no message body is present).
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5441 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5442 * 7. Otherwise, this is a response message without a declared message
5443 * body length, so the message body length is determined by the
5444 * number of octets received prior to the server closing the
5445 * connection.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5446 */
5447
5448 /* Skip parsing if no content length is possible. The response flags
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5449 * remain 0 as well as the chunk_len, which may or may not mirror
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5450 * the real header value, and we note that we know the response's length.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5451 * FIXME: should we parse anyway and return an error on chunked encoding ?
5452 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5453 if (unlikely((txn->meth == HTTP_METH_CONNECT && txn->status == 200) ||
5454 txn->status == 101)) {
5455 /* Either we've established an explicit tunnel, or we're
5456 * switching the protocol. In both cases, we're very unlikely
5457 * to understand the next protocols. We have to switch to tunnel
5458 * mode, so that we transfer the request and responses then let
5459 * this protocol pass unmodified. When we later implement specific
5460 * parsers for such protocols, we'll want to check the Upgrade
5461 * header which contains information about that protocol for
5462 * responses with status 101 (eg: see RFC2817 about TLS).
5463 */
5464 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_TUN;
5465 msg->flags |= HTTP_MSGF_XFER_LEN;
5466 goto end;
5467 }
5468
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5469 if (txn->meth == HTTP_METH_HEAD ||
5470 (txn->status >= 100 && txn->status < 200) ||
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5471 txn->status == 204 || txn->status == 304) {
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5472 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5473 goto skip_content_length;
5474 }
5475
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5476 use_close_only = 0;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5477 ctx.idx = 0;
Willy Tarreau4979d5c2015-05-01 10:06:30 +0200[diff] [blame]5478 while (http_find_header2("Transfer-Encoding", 17, rep->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5479 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5480 msg->flags |= (HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
5481 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5482 /* bad transfer-encoding (chunked followed by something else) */
5483 use_close_only = 1;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5484 msg->flags &= ~(HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5485 break;
5486 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5487 }
5488
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5489 /* Chunked responses must have their content-length removed */
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5490 ctx.idx = 0;
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]5491 if (use_close_only || (msg->flags & HTTP_MSGF_TE_CHNK)) {
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5492 while (http_find_header2("Content-Length", 14, rep->buf->p, &txn->hdr_idx, &ctx))
5493 http_remove_header2(msg, &txn->hdr_idx, &ctx);
5494 }
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]5495 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]5496 signed long long cl;
5497
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5498 if (!ctx.vlen) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5499 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5500 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5501 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5502
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5503 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5504 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5505 goto hdr_response_bad; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5506 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5507
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5508 if (cl < 0) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5509 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5510 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5511 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5512
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5513 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5514 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5515 goto hdr_response_bad; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5516 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5517
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5518 msg->flags |= HTTP_MSGF_CNT_LEN | HTTP_MSGF_XFER_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5519 msg->body_len = msg->chunk_len = cl;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5520 }
5521
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5522 skip_content_length:
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5523 /* Now we have to check if we need to modify the Connection header.
5524 * This is more difficult on the response than it is on the request,
5525 * because we can have two different HTTP versions and we don't know
5526 * how the client will interprete a response. For instance, let's say
5527 * that the client sends a keep-alive request in HTTP/1.0 and gets an
5528 * HTTP/1.1 response without any header. Maybe it will bound itself to
5529 * HTTP/1.0 because it only knows about it, and will consider the lack
5530 * of header as a close, or maybe it knows HTTP/1.1 and can consider
5531 * the lack of header as a keep-alive. Thus we will use two flags
5532 * indicating how a request MAY be understood by the client. In case
5533 * of multiple possibilities, we'll fix the header to be explicit. If
5534 * ambiguous cases such as both close and keepalive are seen, then we
5535 * will fall back to explicit close. Note that we won't take risks with
5536 * HTTP/1.0 clients which may not necessarily understand keep-alive.
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5537 * See doc/internals/connection-header.txt for the complete matrix.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5538 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5539 if ((txn->status >= 200) && !(txn->flags & TX_HDR_CONN_PRS) &&
5540 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN ||
5541 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
5542 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5543 int to_del = 0;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5544
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5545 /* this situation happens when combining pretend-keepalive with httpclose. */
5546 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5547 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5548 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5549 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
5550
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5551 /* on unknown transfer length, we must close */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5552 if (!(msg->flags & HTTP_MSGF_XFER_LEN) &&
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5553 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
5554 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5555
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5556 /* now adjust header transformations depending on current state */
5557 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN ||
5558 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
5559 to_del |= 2; /* remove "keep-alive" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5560 if (!(msg->flags & HTTP_MSGF_VER_11))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5561 to_del |= 1; /* remove "close" for HTTP/1.0 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5562 }
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5563 else { /* SCL / KAL */
5564 to_del |= 1; /* remove "close" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5565 if (txn->req.flags & msg->flags & HTTP_MSGF_VER_11)
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5566 to_del |= 2; /* remove "keep-alive" on pure 1.1 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5567 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5568
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5569 /* Parse and remove some headers from the connection header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]5570 http_parse_connection_header(txn, msg, to_del);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5571
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5572 /* Some keep-alive responses are converted to Server-close if
5573 * the server wants to close.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5574 */
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5575 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL) {
5576 if ((txn->flags & TX_HDR_CONN_CLO) ||
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5577 (!(txn->flags & TX_HDR_CONN_KAL) && !(msg->flags & HTTP_MSGF_VER_11)))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5578 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_SCL;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]5579 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5580 }
5581
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5582 end:
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5583 /* we want to have the response time before we start processing it */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5584 s->logs.t_data = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5585
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5586 /* end of job, return OK */
5587 rep->analysers &= ~an_bit;
5588 rep->analyse_exp = TICK_ETERNITY;
5589 channel_auto_close(rep);
5590 return 1;
5591
5592 abort_keep_alive:
5593 /* A keep-alive request to the server failed on a network error.
5594 * The client is required to retry. We need to close without returning
5595 * any other information so that the client retries.
5596 */
5597 txn->status = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5598 rep->analysers &= AN_RES_FLT_END;
5599 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5600 channel_auto_close(rep);
5601 s->logs.logwait = 0;
5602 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5603 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5604 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5605 http_reply_and_close(s, txn->status, NULL);
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5606 return 0;
5607}
5608
5609/* This function performs all the processing enabled for the current response.
5610 * It normally returns 1 unless it wants to break. It relies on buffers flags,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5611 * and updates s->res.analysers. It might make sense to explode it into several
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5612 * other functions. It works like process_request (see indications above).
5613 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5614int 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]5615{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5616 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5617 struct http_txn *txn = s->txn;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5618 struct http_msg *msg = &txn->rsp;
5619 struct proxy *cur_proxy;
5620 struct cond_wordlist *wl;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]5621 enum rule_result ret = HTTP_RULE_RES_CONT;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5622
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5623 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]5624 now_ms, __FUNCTION__,
5625 s,
5626 rep,
5627 rep->rex, rep->wex,
5628 rep->flags,
5629 rep->buf->i,
5630 rep->analysers);
5631
5632 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) /* we need more data */
5633 return 0;
5634
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5635 /* The stats applet needs to adjust the Connection header but we don't
5636 * apply any filter there.
5637 */
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5638 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
5639 rep->analysers &= ~an_bit;
5640 rep->analyse_exp = TICK_ETERNITY;
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5641 goto skip_filters;
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5642 }
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5643
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5644 /*
5645 * We will have to evaluate the filters.
5646 * As opposed to version 1.2, now they will be evaluated in the
5647 * filters order and not in the header order. This means that
5648 * each filter has to be validated among all headers.
5649 *
5650 * Filters are tried with ->be first, then with ->fe if it is
5651 * different from ->be.
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5652 *
5653 * Maybe we are in resume condiion. In this case I choose the
5654 * "struct proxy" which contains the rule list matching the resume
5655 * pointer. If none of theses "struct proxy" match, I initialise
5656 * the process with the first one.
5657 *
5658 * In fact, I check only correspondance betwwen the current list
5659 * pointer and the ->fe rule list. If it doesn't match, I initialize
5660 * the loop with the ->be.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5661 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5662 if (s->current_rule_list == &sess->fe->http_res_rules)
5663 cur_proxy = sess->fe;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5664 else
5665 cur_proxy = s->be;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5666 while (1) {
5667 struct proxy *rule_set = cur_proxy;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5668
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5669 /* evaluate http-response rules */
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5670 if (ret == HTTP_RULE_RES_CONT) {
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]5671 ret = http_res_get_intercept_rule(cur_proxy, &cur_proxy->http_res_rules, s);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]5672
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5673 if (ret == HTTP_RULE_RES_BADREQ)
5674 goto return_srv_prx_502;
5675
5676 if (ret == HTTP_RULE_RES_DONE) {
5677 rep->analysers &= ~an_bit;
5678 rep->analyse_exp = TICK_ETERNITY;
5679 return 1;
5680 }
5681 }
5682
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5683 /* we need to be called again. */
5684 if (ret == HTTP_RULE_RES_YIELD) {
5685 channel_dont_close(rep);
5686 return 0;
5687 }
5688
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5689 /* try headers filters */
5690 if (rule_set->rsp_exp != NULL) {
5691 if (apply_filters_to_response(s, rep, rule_set) < 0) {
5692 return_bad_resp:
5693 if (objt_server(s->target)) {
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5694 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5695 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_RSP);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5696 }
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5697 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5698 return_srv_prx_502:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5699 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5700 txn->status = 502;
5701 s->logs.t_data = -1; /* was not a valid response */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5702 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5703 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5704 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5705 if (!(s->flags & SF_ERR_MASK))
5706 s->flags |= SF_ERR_PRXCOND;
5707 if (!(s->flags & SF_FINST_MASK))
5708 s->flags |= SF_FINST_H;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5709 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5710 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5711 }
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5712
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5713 /* has the response been denied ? */
5714 if (txn->flags & TX_SVDENY) {
5715 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5716 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_secu, 1);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5717
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5718 HA_ATOMIC_ADD(&s->be->be_counters.denied_resp, 1);
5719 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_resp, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5720 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]5721 HA_ATOMIC_ADD(&sess->listener->counters->denied_resp, 1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5722
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5723 goto return_srv_prx_502;
5724 }
Willy Tarreau0bbc3cf2006-10-15 14:26:02 +0200[diff] [blame]5725
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5726 /* add response headers from the rule sets in the same order */
5727 list_for_each_entry(wl, &rule_set->rsp_add, list) {
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5728 if (txn->status < 200 && txn->status != 101)
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5729 break;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5730 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]5731 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]5732 ret = acl_pass(ret);
5733 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
5734 ret = !ret;
5735 if (!ret)
5736 continue;
5737 }
5738 if (unlikely(http_header_add_tail(&txn->rsp, &txn->hdr_idx, wl->s) < 0))
5739 goto return_bad_resp;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5740 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5741
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5742 /* check whether we're already working on the frontend */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5743 if (cur_proxy == sess->fe)
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5744 break;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5745 cur_proxy = sess->fe;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5746 }
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5747
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5748 /* After this point, this anayzer can't return yield, so we can
5749 * remove the bit corresponding to this analyzer from the list.
5750 *
5751 * Note that the intermediate returns and goto found previously
5752 * reset the analyzers.
5753 */
5754 rep->analysers &= ~an_bit;
5755 rep->analyse_exp = TICK_ETERNITY;
5756
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5757 /* OK that's all we can do for 1xx responses */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5758 if (unlikely(txn->status < 200 && txn->status != 101))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5759 goto skip_header_mangling;
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5760
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5761 /*
5762 * Now check for a server cookie.
5763 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]5764 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]5765 manage_server_side_cookies(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5766
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5767 /*
5768 * Check for cache-control or pragma headers if required.
5769 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5770 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]5771 check_response_for_cacheability(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5772
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5773 /*
5774 * Add server cookie in the response if needed
5775 */
5776 if (objt_server(s->target) && (s->be->ck_opts & PR_CK_INS) &&
5777 !((txn->flags & TX_SCK_FOUND) && (s->be->ck_opts & PR_CK_PSV)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5778 (!(s->flags & SF_DIRECT) ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5779 ((s->be->cookie_maxidle || txn->cookie_last_date) &&
5780 (!txn->cookie_last_date || (txn->cookie_last_date - date.tv_sec) < 0)) ||
5781 (s->be->cookie_maxlife && !txn->cookie_first_date) || // set the first_date
5782 (!s->be->cookie_maxlife && txn->cookie_first_date)) && // remove the first_date
5783 (!(s->be->ck_opts & PR_CK_POST) || (txn->meth == HTTP_METH_POST)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5784 !(s->flags & SF_IGNORE_PRST)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5785 /* the server is known, it's not the one the client requested, or the
5786 * cookie's last seen date needs to be refreshed. We have to
5787 * insert a set-cookie here, except if we want to insert only on POST
5788 * requests and this one isn't. Note that servers which don't have cookies
5789 * (eg: some backup servers) will return a full cookie removal request.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5790 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5791 if (!objt_server(s->target)->cookie) {
5792 chunk_printf(&trash,
5793 "Set-Cookie: %s=; Expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/",
5794 s->be->cookie_name);
5795 }
5796 else {
5797 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]5798
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5799 if (s->be->cookie_maxidle || s->be->cookie_maxlife) {
5800 /* emit last_date, which is mandatory */
5801 trash.str[trash.len++] = COOKIE_DELIM_DATE;
5802 s30tob64((date.tv_sec+3) >> 2, trash.str + trash.len);
5803 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5804
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5805 if (s->be->cookie_maxlife) {
5806 /* emit first_date, which is either the original one or
5807 * the current date.
5808 */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]5809 trash.str[trash.len++] = COOKIE_DELIM_DATE;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5810 s30tob64(txn->cookie_first_date ?
5811 txn->cookie_first_date >> 2 :
5812 (date.tv_sec+3) >> 2, trash.str + trash.len);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]5813 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5814 }
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5815 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5816 chunk_appendf(&trash, "; path=/");
5817 }
Willy Tarreau4992dd22012-05-31 21:02:17 +0200[diff] [blame]5818
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5819 if (s->be->cookie_domain)
5820 chunk_appendf(&trash, "; domain=%s", s->be->cookie_domain);
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5821
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5822 if (s->be->ck_opts & PR_CK_HTTPONLY)
5823 chunk_appendf(&trash, "; HttpOnly");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5824
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5825 if (s->be->ck_opts & PR_CK_SECURE)
5826 chunk_appendf(&trash, "; Secure");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5827
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5828 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx, trash.str, trash.len) < 0))
5829 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5830
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5831 txn->flags &= ~TX_SCK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5832 if (objt_server(s->target)->cookie && (s->flags & SF_DIRECT))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5833 /* the server did not change, only the date was updated */
5834 txn->flags |= TX_SCK_UPDATED;
5835 else
5836 txn->flags |= TX_SCK_INSERTED;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5837
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5838 /* Here, we will tell an eventual cache on the client side that we don't
5839 * want it to cache this reply because HTTP/1.0 caches also cache cookies !
5840 * Some caches understand the correct form: 'no-cache="set-cookie"', but
5841 * others don't (eg: apache <= 1.3.26). So we use 'private' instead.
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5842 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5843 if ((s->be->ck_opts & PR_CK_NOC) && (txn->flags & TX_CACHEABLE)) {
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5844
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5845 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5846
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5847 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx,
5848 "Cache-control: private", 22) < 0))
5849 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5850 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5851 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5852
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5853 /*
5854 * Check if result will be cacheable with a cookie.
5855 * We'll block the response if security checks have caught
5856 * nasty things such as a cacheable cookie.
5857 */
5858 if (((txn->flags & (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) ==
5859 (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) &&
5860 (s->be->options & PR_O_CHK_CACHE)) {
5861 /* we're in presence of a cacheable response containing
5862 * a set-cookie header. We'll block it as requested by
5863 * the 'checkcache' option, and send an alert.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5864 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5865 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]5866 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_secu, 1);
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5867
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]5868 HA_ATOMIC_ADD(&s->be->be_counters.denied_resp, 1);
5869 HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_resp, 1);
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5870 if (sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200[diff] [blame]5871 HA_ATOMIC_ADD(&sess->listener->counters->denied_resp, 1);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5872
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5873 Alert("Blocking cacheable cookie in response from instance %s, server %s.\n",
5874 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
5875 send_log(s->be, LOG_ALERT,
5876 "Blocking cacheable cookie in response from instance %s, server %s.\n",
5877 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
5878 goto return_srv_prx_502;
5879 }
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]5880
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5881 skip_filters:
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5882 /*
5883 * Adjust "Connection: close" or "Connection: keep-alive" if needed.
5884 * If an "Upgrade" token is found, the header is left untouched in order
5885 * 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]5886 * if anything but "Upgrade" is present in the Connection header. We don't
5887 * want to touch any 101 response either since it's switching to another
5888 * protocol.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5889 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5890 if ((txn->status != 101) && !(txn->flags & TX_HDR_CONN_UPG) &&
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5891 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5892 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5893 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
5894 unsigned int want_flags = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5895
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5896 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
5897 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
5898 /* we want a keep-alive response here. Keep-alive header
5899 * required if either side is not 1.1.
5900 */
5901 if (!(txn->req.flags & msg->flags & HTTP_MSGF_VER_11))
5902 want_flags |= TX_CON_KAL_SET;
5903 }
5904 else {
5905 /* we want a close response here. Close header required if
5906 * the server is 1.1, regardless of the client.
5907 */
5908 if (msg->flags & HTTP_MSGF_VER_11)
5909 want_flags |= TX_CON_CLO_SET;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5910 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5911
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5912 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
5913 http_change_connection_header(txn, msg, want_flags);
5914 }
5915
5916 skip_header_mangling:
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]5917 /* Always enter in the body analyzer */
5918 rep->analysers &= ~AN_RES_FLT_XFER_DATA;
5919 rep->analysers |= AN_RES_HTTP_XFER_BODY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5920
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5921 /* if the user wants to log as soon as possible, without counting
5922 * bytes from the server, then this is the right moment. We have
5923 * to temporarily assign bytes_out to log what we currently have.
5924 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5925 if (!LIST_ISEMPTY(&sess->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5926 s->logs.t_close = s->logs.t_data; /* to get a valid end date */
5927 s->logs.bytes_out = txn->rsp.eoh;
5928 s->do_log(s);
5929 s->logs.bytes_out = 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5930 }
Willy Tarreaue3fa6e52010-01-04 22:57:43 +0100[diff] [blame]5931 return 1;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5932}
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5933
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5934/* This function is an analyser which forwards response body (including chunk
5935 * sizes if any). It is called as soon as we must forward, even if we forward
5936 * zero byte. The only situation where it must not be called is when we're in
5937 * tunnel mode and we want to forward till the close. It's used both to forward
5938 * remaining data and to resync after end of body. It expects the msg_state to
5939 * 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]5940 * 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]5941 *
5942 * It is capable of compressing response data both in content-length mode and
5943 * in chunked mode. The state machines follows different flows depending on
5944 * whether content-length and chunked modes are used, since there are no
5945 * trailers in content-length :
5946 *
5947 * chk-mode cl-mode
5948 * ,----- BODY -----.
5949 * / \
5950 * V size > 0 V chk-mode
5951 * .--> SIZE -------------> DATA -------------> CRLF
5952 * | | size == 0 | last byte |
5953 * | v final crlf v inspected |
5954 * | TRAILERS -----------> DONE |
5955 * | |
5956 * `----------------------------------------------'
5957 *
5958 * Compression only happens in the DATA state, and must be flushed in final
5959 * states (TRAILERS/DONE) or when leaving on missing data. Normal forwarding
5960 * is performed at once on final states for all bytes parsed, or when leaving
5961 * on missing data.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5962 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5963int http_response_forward_body(struct stream *s, struct channel *res, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5964{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5965 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5966 struct http_txn *txn = s->txn;
5967 struct http_msg *msg = &s->txn->rsp;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5968 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5969
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]5970 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
5971 now_ms, __FUNCTION__,
5972 s,
5973 res,
5974 res->rex, res->wex,
5975 res->flags,
5976 res->buf->i,
5977 res->analysers);
5978
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5979 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
5980 return 0;
5981
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5982 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]5983 ((res->flags & CF_SHUTW) && (res->to_forward || res->buf->o)) ||
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5984 !s->req.analysers) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]5985 /* Output closed while we were sending data. We must abort and
5986 * wake the other side up.
5987 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5988 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]5989 msg->msg_state = HTTP_MSG_ERROR;
5990 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]5991 return 1;
5992 }
5993
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]5994 /* in most states, we should abort in case of early close */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5995 channel_auto_close(res);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]5996
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5997 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5998 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
5999 ? HTTP_MSG_CHUNK_SIZE
6000 : HTTP_MSG_DATA);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6001 }
6002
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6003 if (res->to_forward) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6004 /* We can't process the buffer's contents yet */
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6005 res->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6006 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6007 }
6008
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6009 if (msg->msg_state < HTTP_MSG_DONE) {
6010 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
6011 ? http_msg_forward_chunked_body(s, msg)
6012 : http_msg_forward_body(s, msg));
6013 if (!ret)
6014 goto missing_data_or_waiting;
6015 if (ret < 0)
6016 goto return_bad_res;
6017 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6018
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6019 /* other states, DONE...TUNNEL */
6020 /* for keep-alive we don't want to forward closes on DONE */
6021 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6022 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
6023 channel_dont_close(res);
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]6024
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]6025 http_resync_states(s);
6026 if (!(res->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6027 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
6028 if (res->flags & CF_SHUTW) {
6029 /* response errors are most likely due to the
6030 * client aborting the transfer. */
6031 goto aborted_xfer;
Willy Tarreau5523b322009-12-29 12:05:52 +0100[diff] [blame]6032 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6033 if (msg->err_pos >= 0)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6034 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]6035 goto return_bad_res;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6036 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6037 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6038 }
Willy Tarreauf51d03c2016-05-02 15:25:15 +0200[diff] [blame]6039 return 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6040
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6041 missing_data_or_waiting:
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6042 if (res->flags & CF_SHUTW)
6043 goto aborted_xfer;
6044
6045 /* stop waiting for data if the input is closed before the end. If the
6046 * client side was already closed, it means that the client has aborted,
6047 * so we don't want to count this as a server abort. Otherwise it's a
6048 * server abort.
6049 */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]6050 if (msg->msg_state < HTTP_MSG_ENDING && res->flags & CF_SHUTR) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6051 if ((s->req.flags & (CF_SHUTR|CF_SHUTW)) == (CF_SHUTR|CF_SHUTW))
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6052 goto aborted_xfer;
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6053 /* If we have some pending data, we continue the processing */
6054 if (!buffer_pending(res->buf)) {
6055 if (!(s->flags & SF_ERR_MASK))
6056 s->flags |= SF_ERR_SRVCL;
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6057 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6058 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6059 HA_ATOMIC_ADD(&objt_server(s->target)->counters.srv_aborts, 1);
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6060 goto return_bad_res_stats_ok;
6061 }
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6062 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6063
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6064 /* we need to obey the req analyser, so if it leaves, we must too */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6065 if (!s->req.analysers)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]6066 goto return_bad_res;
6067
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6068 /* When TE: chunked is used, we need to get there again to parse
6069 * remaining chunks even if the server has closed, so we don't want to
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6070 * set CF_DONTCLOSE. Similarly, if keep-alive is set on the client side
6071 * or if there are filters registered on the stream, we don't want to
6072 * forward a close
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6073 */
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]6074 if ((msg->flags & HTTP_MSGF_TE_CHNK) ||
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]6075 HAS_DATA_FILTERS(s, res) ||
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6076 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6077 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6078 channel_dont_close(res);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6079
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6080 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6081 * 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]6082 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]6083 * modes are already handled by the stream sock layer. We must not do
6084 * this in content-length mode because it could present the MSG_MORE
6085 * flag with the last block of forwarded data, which would cause an
6086 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6087 */
Christopher Faulet92d36382015-11-05 13:35:03 +0100[diff] [blame]6088 if ((msg->flags & HTTP_MSGF_TE_CHNK) || (msg->flags & HTTP_MSGF_COMPRESSING))
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6089 res->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6090
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6091 /* the stream handler will take care of timeouts and errors */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6092 return 0;
6093
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6094 return_bad_res: /* let's centralize all bad responses */
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6095 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6096 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6097 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_resp, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6098
6099 return_bad_res_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6100 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6101 txn->rsp.msg_state = HTTP_MSG_ERROR;
Willy Tarreau148d0992010-01-10 10:21:21 +0100[diff] [blame]6102 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6103 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6104 res->analysers &= AN_RES_FLT_END;
6105 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]6106 if (objt_server(s->target))
6107 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6108
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6109 if (!(s->flags & SF_ERR_MASK))
6110 s->flags |= SF_ERR_PRXCOND;
6111 if (!(s->flags & SF_FINST_MASK))
6112 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6113 return 0;
6114
6115 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6116 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6117 txn->rsp.msg_state = HTTP_MSG_ERROR;
6118 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6119 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6120 res->analysers &= AN_RES_FLT_END;
6121 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]6122
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200[diff] [blame]6123 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
6124 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6125 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200[diff] [blame]6126 HA_ATOMIC_ADD(&objt_server(s->target)->counters.cli_aborts, 1);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6127
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6128 if (!(s->flags & SF_ERR_MASK))
6129 s->flags |= SF_ERR_CLICL;
6130 if (!(s->flags & SF_FINST_MASK))
6131 s->flags |= SF_FINST_D;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6132 return 0;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6133}
6134
6135
6136static inline int
6137http_msg_forward_body(struct stream *s, struct http_msg *msg)
6138{
6139 struct channel *chn = msg->chn;
6140 int ret;
6141
6142 /* Here we have the guarantee to be in HTTP_MSG_DATA or HTTP_MSG_ENDING state */
6143
6144 if (msg->msg_state == HTTP_MSG_ENDING)
6145 goto ending;
6146
6147 /* Neither content-length, nor transfer-encoding was found, so we must
6148 * read the body until the server connection is closed. In that case, we
6149 * eat data as they come. Of course, this happens for response only. */
6150 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6151 unsigned long long len = (chn->buf->i - msg->next);
6152 msg->chunk_len += len;
6153 msg->body_len += len;
6154 }
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6155 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6156 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6157 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6158 msg->next += ret;
6159 msg->chunk_len -= ret;
6160 if (msg->chunk_len) {
6161 /* input empty or output full */
6162 if (chn->buf->i > msg->next)
6163 chn->flags |= CF_WAKE_WRITE;
6164 goto missing_data_or_waiting;
6165 }
6166
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]6167 /* This check can only be true for a response. HTTP_MSGF_XFER_LEN is
6168 * always set for a request. */
6169 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6170 /* The server still sending data that should be filtered */
6171 if (!(chn->flags & CF_SHUTR) && HAS_DATA_FILTERS(s, chn))
6172 goto missing_data_or_waiting;
6173 }
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]6174
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6175 msg->msg_state = HTTP_MSG_ENDING;
6176
6177 ending:
6178 /* we may have some pending data starting at res->buf->p such as a last
6179 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6180 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6181 /* default_ret */ msg->next,
6182 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6183 b_adv(chn->buf, ret);
6184 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6185 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6186 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6187 if (msg->next)
6188 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6189
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6190 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
6191 /* default_ret */ 1,
6192 /* on_error */ goto error,
6193 /* on_wait */ goto waiting);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6194 msg->msg_state = HTTP_MSG_DONE;
6195 return 1;
6196
6197 missing_data_or_waiting:
6198 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6199 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6200 /* default_ret */ msg->next,
6201 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6202 b_adv(chn->buf, ret);
6203 msg->next -= ret;
6204 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6205 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6206 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6207 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6208 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6209 return 0;
6210 error:
6211 return -1;
6212}
6213
6214static inline int
6215http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg)
6216{
6217 struct channel *chn = msg->chn;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6218 unsigned int chunk;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6219 int ret;
6220
6221 /* Here we have the guarantee to be in one of the following state:
6222 * HTTP_MSG_DATA, HTTP_MSG_CHUNK_SIZE, HTTP_MSG_CHUNK_CRLF,
6223 * HTTP_MSG_TRAILERS or HTTP_MSG_ENDING. */
6224
6225 switch_states:
6226 switch (msg->msg_state) {
6227 case HTTP_MSG_DATA:
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6228 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6229 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6230 /* on_error */ goto error);
6231 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6232 msg->chunk_len -= ret;
6233 if (msg->chunk_len) {
6234 /* input empty or output full */
6235 if (chn->buf->i > msg->next)
6236 chn->flags |= CF_WAKE_WRITE;
6237 goto missing_data_or_waiting;
6238 }
6239
6240 /* nothing left to forward for this chunk*/
6241 msg->msg_state = HTTP_MSG_CHUNK_CRLF;
6242 /* fall through for HTTP_MSG_CHUNK_CRLF */
6243
6244 case HTTP_MSG_CHUNK_CRLF:
6245 /* we want the CRLF after the data */
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6246 ret = h1_skip_chunk_crlf(chn->buf, msg->next, chn->buf->i);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6247 if (ret == 0)
6248 goto missing_data_or_waiting;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6249 if (ret < 0) {
6250 msg->err_pos = chn->buf->i + ret;
6251 if (msg->err_pos < 0)
6252 msg->err_pos += chn->buf->size;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6253 goto chunk_parsing_error;
Willy Tarreaub2892562017-09-21 11:33:54 +0200[diff] [blame]6254 }
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6255 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6256 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
6257 /* fall through for HTTP_MSG_CHUNK_SIZE */
6258
6259 case HTTP_MSG_CHUNK_SIZE:
6260 /* read the chunk size and assign it to ->chunk_len,
6261 * then set ->next to point to the body and switch to
6262 * DATA or TRAILERS state.
6263 */
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6264 ret = h1_parse_chunk_size(chn->buf, msg->next, chn->buf->i, &chunk);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6265 if (ret == 0)
6266 goto missing_data_or_waiting;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6267 if (ret < 0) {
6268 msg->err_pos = chn->buf->i + ret;
6269 if (msg->err_pos < 0)
6270 msg->err_pos += chn->buf->size;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6271 goto chunk_parsing_error;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6272 }
6273
6274 msg->sol = ret;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6275 msg->next += ret;
Willy Tarreaue56cdd32017-09-21 08:36:33 +0200[diff] [blame]6276 msg->chunk_len = chunk;
6277 msg->body_len += chunk;
6278
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6279 if (msg->chunk_len) {
6280 msg->msg_state = HTTP_MSG_DATA;
6281 goto switch_states;
6282 }
6283 msg->msg_state = HTTP_MSG_TRAILERS;
6284 /* fall through for HTTP_MSG_TRAILERS */
6285
6286 case HTTP_MSG_TRAILERS:
6287 ret = http_forward_trailers(msg);
6288 if (ret < 0)
6289 goto chunk_parsing_error;
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6290 FLT_STRM_DATA_CB(s, chn, flt_http_chunk_trailers(s, msg),
6291 /* default_ret */ 1,
6292 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6293 msg->next += msg->sol;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6294 if (!ret)
6295 goto missing_data_or_waiting;
6296 break;
6297
6298 case HTTP_MSG_ENDING:
6299 goto ending;
6300
6301 default:
6302 /* This should no happen in this function */
6303 goto error;
6304 }
6305
6306 msg->msg_state = HTTP_MSG_ENDING;
6307 ending:
6308 /* we may have some pending data starting at res->buf->p such as a last
6309 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6310 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]6311 /* default_ret */ msg->next,
6312 /* on_error */ goto error);
6313 b_adv(chn->buf, ret);
6314 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6315 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6316 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6317 if (msg->next)
6318 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6319
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6320 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6321 /* default_ret */ 1,
6322 /* on_error */ goto error,
6323 /* on_wait */ goto waiting);
6324 msg->msg_state = HTTP_MSG_DONE;
6325 return 1;
6326
6327 missing_data_or_waiting:
6328 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6329 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]6330 /* default_ret */ msg->next,
6331 /* on_error */ goto error);
6332 b_adv(chn->buf, ret);
6333 msg->next -= ret;
6334 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6335 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6336 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6337 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6338 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6339 return 0;
6340
6341 chunk_parsing_error:
6342 if (msg->err_pos >= 0) {
6343 if (chn->flags & CF_ISRESP)
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6344 http_capture_bad_message(s->be, &s->be->invalid_rep, s, msg,
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6345 msg->msg_state, strm_fe(s));
6346 else
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]6347 http_capture_bad_message(strm_fe(s), &strm_fe(s)->invalid_req, s,
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6348 msg, msg->msg_state, s->be);
6349 }
6350 error:
6351 return -1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6352}
6353
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6354
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6355/* Iterate the same filter through all request headers.
6356 * Returns 1 if this filter can be stopped upon return, otherwise 0.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6357 * Since it can manage the switch to another backend, it updates the per-proxy
6358 * DENY stats.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6359 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6360int 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]6361{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6362 char *cur_ptr, *cur_end, *cur_next;
6363 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6364 struct http_txn *txn = s->txn;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6365 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6366 int delta;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100[diff] [blame]6367
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6368 last_hdr = 0;
6369
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6370 cur_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6371 old_idx = 0;
6372
6373 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6374 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6375 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6376 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6377 (exp->action == ACT_ALLOW ||
6378 exp->action == ACT_DENY ||
6379 exp->action == ACT_TARPIT))
6380 return 0;
6381
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6382 cur_idx = txn->hdr_idx.v[old_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6383 if (!cur_idx)
6384 break;
6385
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6386 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6387 cur_ptr = cur_next;
6388 cur_end = cur_ptr + cur_hdr->len;
6389 cur_next = cur_end + cur_hdr->cr + 1;
6390
6391 /* Now we have one header between cur_ptr and cur_end,
6392 * and the next header starts at cur_next.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6393 */
6394
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]6395 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]6396 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6397 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6398 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6399 last_hdr = 1;
6400 break;
6401
6402 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6403 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6404 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6405 break;
6406
6407 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6408 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6409 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6410 break;
6411
6412 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6413 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
6414 if (trash.len < 0)
6415 return -1;
6416
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6417 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6418 /* FIXME: if the user adds a newline in the replacement, the
6419 * index will not be recalculated for now, and the new line
6420 * will not be counted as a new header.
6421 */
6422
6423 cur_end += delta;
6424 cur_next += delta;
6425 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6426 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6427 break;
6428
6429 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6430 delta = buffer_replace2(req->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6431 cur_next += delta;
6432
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6433 http_msg_move_end(&txn->req, delta);
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6434 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
6435 txn->hdr_idx.used--;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6436 cur_hdr->len = 0;
6437 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]6438 cur_idx = old_idx;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6439 break;
6440
6441 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6442 }
6443
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6444 /* keep the link from this header to next one in case of later
6445 * removal of next header.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6446 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6447 old_idx = cur_idx;
6448 }
6449 return 0;
6450}
6451
6452
6453/* Apply the filter to the request line.
6454 * Returns 0 if nothing has been done, 1 if the filter has been applied,
6455 * or -1 if a replacement resulted in an invalid request line.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6456 * Since it can manage the switch to another backend, it updates the per-proxy
6457 * DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6458 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6459int 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]6460{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6461 char *cur_ptr, *cur_end;
6462 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6463 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6464 int delta;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6465
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6466 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6467 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6468 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6469 (exp->action == ACT_ALLOW ||
6470 exp->action == ACT_DENY ||
6471 exp->action == ACT_TARPIT))
6472 return 0;
6473 else if (exp->action == ACT_REMOVE)
6474 return 0;
6475
6476 done = 0;
6477
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6478 cur_ptr = req->buf->p;
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6479 cur_end = cur_ptr + txn->req.sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6480
6481 /* Now we have the request line between cur_ptr and cur_end */
6482
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]6483 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]6484 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6485 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6486 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6487 done = 1;
6488 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6489
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6490 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6491 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6492 done = 1;
6493 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6494
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6495 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6496 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6497 done = 1;
6498 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6499
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6500 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6501 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
6502 if (trash.len < 0)
6503 return -1;
6504
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6505 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6506 /* FIXME: if the user adds a newline in the replacement, the
6507 * index will not be recalculated for now, and the new line
6508 * will not be counted as a new header.
6509 */
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6510
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6511 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6512 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]6513 cur_end = (char *)http_parse_reqline(&txn->req,
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6514 HTTP_MSG_RQMETH,
6515 cur_ptr, cur_end + 1,
6516 NULL, NULL);
6517 if (unlikely(!cur_end))
6518 return -1;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6519
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6520 /* we have a full request and we know that we have either a CR
6521 * or an LF at <ptr>.
6522 */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6523 txn->meth = find_http_meth(cur_ptr, txn->req.sl.rq.m_l);
6524 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]6525 /* there is no point trying this regex on headers */
6526 return 1;
6527 }
6528 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6529 return done;
6530}
Willy Tarreau97de6242006-12-27 17:18:38 +0100[diff] [blame]6531
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6532
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6533
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6534/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6535 * 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]6536 * 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]6537 * unparsable request. Since it can manage the switch to another backend, it
6538 * updates the per-proxy DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6539 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6540int apply_filters_to_request(struct stream *s, struct channel *req, struct proxy *px)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6541{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6542 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6543 struct http_txn *txn = s->txn;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6544 struct hdr_exp *exp;
6545
6546 for (exp = px->req_exp; exp; exp = exp->next) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6547 int ret;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6548
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6549 /*
6550 * The interleaving of transformations and verdicts
6551 * makes it difficult to decide to continue or stop
6552 * the evaluation.
6553 */
6554
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6555 if (txn->flags & (TX_CLDENY|TX_CLTARPIT))
6556 break;
6557
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6558 if ((txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6559 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6560 exp->action == ACT_TARPIT || exp->action == ACT_PASS))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6561 continue;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6562
6563 /* if this filter had a condition, evaluate it now and skip to
6564 * next filter if the condition does not match.
6565 */
6566 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6567 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]6568 ret = acl_pass(ret);
6569 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
6570 ret = !ret;
6571
6572 if (!ret)
6573 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6574 }
6575
6576 /* Apply the filter to the request line. */
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6577 ret = apply_filter_to_req_line(s, req, exp);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6578 if (unlikely(ret < 0))
6579 return -1;
6580
6581 if (likely(ret == 0)) {
6582 /* The filter did not match the request, it can be
6583 * iterated through all headers.
6584 */
Willy Tarreau34d4c3c2015-01-30 20:58:58 +0100[diff] [blame]6585 if (unlikely(apply_filter_to_req_headers(s, req, exp) < 0))
6586 return -1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6587 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6588 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6589 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6590}
6591
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6592
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6593/* Find the end of a cookie value contained between <s> and <e>. It works the
6594 * same way as with headers above except that the semi-colon also ends a token.
6595 * See RFC2965 for more information. Note that it requires a valid header to
6596 * return a valid result.
6597 */
6598char *find_cookie_value_end(char *s, const char *e)
6599{
6600 int quoted, qdpair;
6601
6602 quoted = qdpair = 0;
6603 for (; s < e; s++) {
6604 if (qdpair) qdpair = 0;
6605 else if (quoted) {
6606 if (*s == '\\') qdpair = 1;
6607 else if (*s == '"') quoted = 0;
6608 }
6609 else if (*s == '"') quoted = 1;
6610 else if (*s == ',' || *s == ';') return s;
6611 }
6612 return s;
6613}
6614
6615/* Delete a value in a header between delimiters <from> and <next> in buffer
6616 * <buf>. The number of characters displaced is returned, and the pointer to
6617 * the first delimiter is updated if required. The function tries as much as
6618 * possible to respect the following principles :
6619 * - replace <from> delimiter by the <next> one unless <from> points to a
6620 * colon, in which case <next> is simply removed
6621 * - set exactly one space character after the new first delimiter, unless
6622 * there are not enough characters in the block being moved to do so.
6623 * - remove unneeded spaces before the previous delimiter and after the new
6624 * one.
6625 *
6626 * It is the caller's responsibility to ensure that :
6627 * - <from> points to a valid delimiter or the colon ;
6628 * - <next> points to a valid delimiter or the final CR/LF ;
6629 * - there are non-space chars before <from> ;
6630 * - there is a CR/LF at or after <next>.
6631 */
Willy Tarreauaf819352012-08-27 22:08:00 +0200[diff] [blame]6632int del_hdr_value(struct buffer *buf, char **from, char *next)
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6633{
6634 char *prev = *from;
6635
6636 if (*prev == ':') {
6637 /* We're removing the first value, preserve the colon and add a
6638 * space if possible.
6639 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6640 if (!HTTP_IS_CRLF(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6641 next++;
6642 prev++;
6643 if (prev < next)
6644 *prev++ = ' ';
6645
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6646 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6647 next++;
6648 } else {
6649 /* Remove useless spaces before the old delimiter. */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6650 while (HTTP_IS_SPHT(*(prev-1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6651 prev--;
6652 *from = prev;
6653
6654 /* copy the delimiter and if possible a space if we're
6655 * not at the end of the line.
6656 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6657 if (!HTTP_IS_CRLF(*next)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6658 *prev++ = *next++;
6659 if (prev + 1 < next)
6660 *prev++ = ' ';
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6661 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6662 next++;
6663 }
6664 }
6665 return buffer_replace2(buf, prev, next, NULL, 0);
6666}
6667
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6668/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]6669 * Manage client-side cookie. It can impact performance by about 2% so it is
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6670 * desirable to call it only when needed. This code is quite complex because
6671 * of the multiple very crappy and ambiguous syntaxes we have to support. it
6672 * highly recommended not to touch this part without a good reason !
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6673 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6674void manage_client_side_cookies(struct stream *s, struct channel *req)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6675{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6676 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6677 struct session *sess = s->sess;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6678 int preserve_hdr;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6679 int cur_idx, old_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6680 char *hdr_beg, *hdr_end, *hdr_next, *del_from;
6681 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6682
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6683 /* Iterate through the headers, we start with the start line. */
Willy Tarreau83969f42007-01-22 08:55:47 +0100[diff] [blame]6684 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6685 hdr_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6686
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6687 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6688 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6689 int val;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6690
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6691 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6692 hdr_beg = hdr_next;
6693 hdr_end = hdr_beg + cur_hdr->len;
6694 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6695
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6696 /* We have one full header between hdr_beg and hdr_end, and the
6697 * next header starts at hdr_next. We're only interested in
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6698 * "Cookie:" headers.
6699 */
6700
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6701 val = http_header_match2(hdr_beg, hdr_end, "Cookie", 6);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6702 if (!val) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6703 old_idx = cur_idx;
6704 continue;
6705 }
6706
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6707 del_from = NULL; /* nothing to be deleted */
6708 preserve_hdr = 0; /* assume we may kill the whole header */
6709
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6710 /* Now look for cookies. Conforming to RFC2109, we have to support
6711 * attributes whose name begin with a '$', and associate them with
6712 * the right cookie, if we want to delete this cookie.
6713 * So there are 3 cases for each cookie read :
6714 * 1) it's a special attribute, beginning with a '$' : ignore it.
6715 * 2) it's a server id cookie that we *MAY* want to delete : save
6716 * some pointers on it (last semi-colon, beginning of cookie...)
6717 * 3) it's an application cookie : we *MAY* have to delete a previous
6718 * "special" cookie.
6719 * At the end of loop, if a "special" cookie remains, we may have to
6720 * remove it. If no application cookie persists in the header, we
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6721 * *MUST* delete it.
6722 *
6723 * Note: RFC2965 is unclear about the processing of spaces around
6724 * the equal sign in the ATTR=VALUE form. A careful inspection of
6725 * the RFC explicitly allows spaces before it, and not within the
6726 * tokens (attrs or values). An inspection of RFC2109 allows that
6727 * too but section 10.1.3 lets one think that spaces may be allowed
6728 * after the equal sign too, resulting in some (rare) buggy
6729 * implementations trying to do that. So let's do what servers do.
6730 * Latest ietf draft forbids spaces all around. Also, earlier RFCs
6731 * allowed quoted strings in values, with any possible character
6732 * after a backslash, including control chars and delimitors, which
6733 * causes parsing to become ambiguous. Browsers also allow spaces
6734 * within values even without quotes.
6735 *
6736 * We have to keep multiple pointers in order to support cookie
6737 * removal at the beginning, middle or end of header without
6738 * corrupting the header. All of these headers are valid :
6739 *
6740 * Cookie:NAME1=VALUE1;NAME2=VALUE2;NAME3=VALUE3\r\n
6741 * Cookie:NAME1=VALUE1;NAME2_ONLY ;NAME3=VALUE3\r\n
6742 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
6743 * | | | | | | | | |
6744 * | | | | | | | | hdr_end <--+
6745 * | | | | | | | +--> next
6746 * | | | | | | +----> val_end
6747 * | | | | | +-----------> val_beg
6748 * | | | | +--------------> equal
6749 * | | | +----------------> att_end
6750 * | | +---------------------> att_beg
6751 * | +--------------------------> prev
6752 * +--------------------------------> hdr_beg
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6753 */
6754
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6755 for (prev = hdr_beg + 6; prev < hdr_end; prev = next) {
6756 /* Iterate through all cookies on this line */
6757
6758 /* find att_beg */
6759 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6760 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6761 att_beg++;
6762
6763 /* find att_end : this is the first character after the last non
6764 * space before the equal. It may be equal to hdr_end.
6765 */
6766 equal = att_end = att_beg;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6767
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6768 while (equal < hdr_end) {
6769 if (*equal == '=' || *equal == ',' || *equal == ';')
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6770 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6771 if (HTTP_IS_SPHT(*equal++))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6772 continue;
6773 att_end = equal;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6774 }
6775
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6776 /* here, <equal> points to '=', a delimitor or the end. <att_end>
6777 * is between <att_beg> and <equal>, both may be identical.
6778 */
6779
6780 /* look for end of cookie if there is an equal sign */
6781 if (equal < hdr_end && *equal == '=') {
6782 /* look for the beginning of the value */
6783 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6784 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6785 val_beg++;
6786
6787 /* find the end of the value, respecting quotes */
6788 next = find_cookie_value_end(val_beg, hdr_end);
6789
6790 /* make val_end point to the first white space or delimitor after the value */
6791 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6792 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6793 val_end--;
6794 } else {
6795 val_beg = val_end = next = equal;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6796 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6797
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6798 /* We have nothing to do with attributes beginning with '$'. However,
6799 * they will automatically be removed if a header before them is removed,
6800 * since they're supposed to be linked together.
6801 */
6802 if (*att_beg == '$')
6803 continue;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6804
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6805 /* Ignore cookies with no equal sign */
6806 if (equal == next) {
6807 /* This is not our cookie, so we must preserve it. But if we already
6808 * scheduled another cookie for removal, we cannot remove the
6809 * complete header, but we can remove the previous block itself.
6810 */
6811 preserve_hdr = 1;
6812 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6813 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6814 val_end += delta;
6815 next += delta;
6816 hdr_end += delta;
6817 hdr_next += delta;
6818 cur_hdr->len += delta;
6819 http_msg_move_end(&txn->req, delta);
6820 prev = del_from;
6821 del_from = NULL;
6822 }
6823 continue;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6824 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6825
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6826 /* if there are spaces around the equal sign, we need to
6827 * strip them otherwise we'll get trouble for cookie captures,
6828 * or even for rewrites. Since this happens extremely rarely,
6829 * it does not hurt performance.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6830 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6831 if (unlikely(att_end != equal || val_beg > equal + 1)) {
6832 int stripped_before = 0;
6833 int stripped_after = 0;
6834
6835 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6836 stripped_before = buffer_replace2(req->buf, att_end, equal, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6837 equal += stripped_before;
6838 val_beg += stripped_before;
6839 }
6840
6841 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6842 stripped_after = buffer_replace2(req->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6843 val_beg += stripped_after;
6844 stripped_before += stripped_after;
6845 }
6846
6847 val_end += stripped_before;
6848 next += stripped_before;
6849 hdr_end += stripped_before;
6850 hdr_next += stripped_before;
6851 cur_hdr->len += stripped_before;
6852 http_msg_move_end(&txn->req, stripped_before);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6853 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6854 /* now everything is as on the diagram above */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6855
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6856 /* First, let's see if we want to capture this cookie. We check
6857 * that we don't already have a client side cookie, because we
6858 * can only capture one. Also as an optimisation, we ignore
6859 * cookies shorter than the declared name.
6860 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6861 if (sess->fe->capture_name != NULL && txn->cli_cookie == NULL &&
6862 (val_end - att_beg >= sess->fe->capture_namelen) &&
6863 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6864 int log_len = val_end - att_beg;
6865
6866 if ((txn->cli_cookie = pool_alloc2(pool2_capture)) == NULL) {
6867 Alert("HTTP logging : out of memory.\n");
6868 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6869 if (log_len > sess->fe->capture_len)
6870 log_len = sess->fe->capture_len;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6871 memcpy(txn->cli_cookie, att_beg, log_len);
6872 txn->cli_cookie[log_len] = 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6873 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6874 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6875
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6876 /* Persistence cookies in passive, rewrite or insert mode have the
6877 * following form :
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6878 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6879 * Cookie: NAME=SRV[|<lastseen>[|<firstseen>]]
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6880 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6881 * For cookies in prefix mode, the form is :
6882 *
6883 * Cookie: NAME=SRV~VALUE
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6884 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6885 if ((att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
6886 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
6887 struct server *srv = s->be->srv;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6888 char *delim;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6889
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6890 /* if we're in cookie prefix mode, we'll search the delimitor so that we
6891 * have the server ID between val_beg and delim, and the original cookie between
6892 * delim+1 and val_end. Otherwise, delim==val_end :
6893 *
6894 * Cookie: NAME=SRV; # in all but prefix modes
6895 * Cookie: NAME=SRV~OPAQUE ; # in prefix mode
6896 * | || || | |+-> next
6897 * | || || | +--> val_end
6898 * | || || +---------> delim
6899 * | || |+------------> val_beg
6900 * | || +-------------> att_end = equal
6901 * | |+-----------------> att_beg
6902 * | +------------------> prev
6903 * +-------------------------> hdr_beg
6904 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6905
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6906 if (s->be->ck_opts & PR_CK_PFX) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6907 for (delim = val_beg; delim < val_end; delim++)
6908 if (*delim == COOKIE_DELIM)
6909 break;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6910 } else {
6911 char *vbar1;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6912 delim = val_end;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6913 /* Now check if the cookie contains a date field, which would
6914 * appear after a vertical bar ('|') just after the server name
6915 * and before the delimiter.
6916 */
6917 vbar1 = memchr(val_beg, COOKIE_DELIM_DATE, val_end - val_beg);
6918 if (vbar1) {
6919 /* OK, so left of the bar is the server's cookie and
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6920 * right is the last seen date. It is a base64 encoded
6921 * 30-bit value representing the UNIX date since the
6922 * epoch in 4-second quantities.
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6923 */
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6924 int val;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6925 delim = vbar1++;
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6926 if (val_end - vbar1 >= 5) {
6927 val = b64tos30(vbar1);
6928 if (val > 0)
6929 txn->cookie_last_date = val << 2;
6930 }
6931 /* look for a second vertical bar */
6932 vbar1 = memchr(vbar1, COOKIE_DELIM_DATE, val_end - vbar1);
6933 if (vbar1 && (val_end - vbar1 > 5)) {
6934 val = b64tos30(vbar1 + 1);
6935 if (val > 0)
6936 txn->cookie_first_date = val << 2;
6937 }
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6938 }
6939 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6940
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6941 /* if the cookie has an expiration date and the proxy wants to check
6942 * it, then we do that now. We first check if the cookie is too old,
6943 * then only if it has expired. We detect strict overflow because the
6944 * time resolution here is not great (4 seconds). Cookies with dates
6945 * in the future are ignored if their offset is beyond one day. This
6946 * allows an admin to fix timezone issues without expiring everyone
6947 * and at the same time avoids keeping unwanted side effects for too
6948 * long.
6949 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6950 if (txn->cookie_first_date && s->be->cookie_maxlife &&
6951 (((signed)(date.tv_sec - txn->cookie_first_date) > (signed)s->be->cookie_maxlife) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6952 ((signed)(txn->cookie_first_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6953 txn->flags &= ~TX_CK_MASK;
6954 txn->flags |= TX_CK_OLD;
6955 delim = val_beg; // let's pretend we have not found the cookie
6956 txn->cookie_first_date = 0;
6957 txn->cookie_last_date = 0;
6958 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6959 else if (txn->cookie_last_date && s->be->cookie_maxidle &&
6960 (((signed)(date.tv_sec - txn->cookie_last_date) > (signed)s->be->cookie_maxidle) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6961 ((signed)(txn->cookie_last_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6962 txn->flags &= ~TX_CK_MASK;
6963 txn->flags |= TX_CK_EXPIRED;
6964 delim = val_beg; // let's pretend we have not found the cookie
6965 txn->cookie_first_date = 0;
6966 txn->cookie_last_date = 0;
6967 }
6968
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6969 /* Here, we'll look for the first running server which supports the cookie.
6970 * This allows to share a same cookie between several servers, for example
6971 * to dedicate backup servers to specific servers only.
6972 * However, to prevent clients from sticking to cookie-less backup server
6973 * when they have incidentely learned an empty cookie, we simply ignore
6974 * empty cookies and mark them as invalid.
6975 * The same behaviour is applied when persistence must be ignored.
6976 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6977 if ((delim == val_beg) || (s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6978 srv = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6979
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6980 while (srv) {
6981 if (srv->cookie && (srv->cklen == delim - val_beg) &&
6982 !memcmp(val_beg, srv->cookie, delim - val_beg)) {
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]6983 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6984 (s->be->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6985 (s->flags & SF_FORCE_PRST)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6986 /* we found the server and we can use it */
6987 txn->flags &= ~TX_CK_MASK;
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]6988 txn->flags |= (srv->cur_state != SRV_ST_STOPPED) ? TX_CK_VALID : TX_CK_DOWN;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6989 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6990 s->target = &srv->obj_type;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6991 break;
6992 } else {
6993 /* we found a server, but it's down,
6994 * mark it as such and go on in case
6995 * another one is available.
6996 */
6997 txn->flags &= ~TX_CK_MASK;
6998 txn->flags |= TX_CK_DOWN;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6999 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7000 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7001 srv = srv->next;
7002 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7003
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7004 if (!srv && !(txn->flags & (TX_CK_DOWN|TX_CK_EXPIRED|TX_CK_OLD))) {
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7005 /* no server matched this cookie or we deliberately skipped it */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7006 txn->flags &= ~TX_CK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7007 if ((s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7008 txn->flags |= TX_CK_UNUSED;
7009 else
7010 txn->flags |= TX_CK_INVALID;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7011 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7012
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7013 /* depending on the cookie mode, we may have to either :
7014 * - delete the complete cookie if we're in insert+indirect mode, so that
7015 * the server never sees it ;
7016 * - remove the server id from the cookie value, and tag the cookie as an
7017 * application cookie so that it does not get accidentely removed later,
7018 * if we're in cookie prefix mode
7019 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7020 if ((s->be->ck_opts & PR_CK_PFX) && (delim != val_end)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7021 int delta; /* negative */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7022
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7023 delta = buffer_replace2(req->buf, val_beg, delim + 1, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7024 val_end += delta;
7025 next += delta;
7026 hdr_end += delta;
7027 hdr_next += delta;
7028 cur_hdr->len += delta;
7029 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7030
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7031 del_from = NULL;
7032 preserve_hdr = 1; /* we want to keep this cookie */
7033 }
7034 else if (del_from == NULL &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7035 (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]7036 del_from = prev;
7037 }
7038 } else {
7039 /* This is not our cookie, so we must preserve it. But if we already
7040 * scheduled another cookie for removal, we cannot remove the
7041 * complete header, but we can remove the previous block itself.
7042 */
7043 preserve_hdr = 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7044
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7045 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7046 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaub8105542010-11-24 18:31:28 +0100[diff] [blame]7047 if (att_beg >= del_from)
7048 att_beg += delta;
7049 if (att_end >= del_from)
7050 att_end += delta;
7051 val_beg += delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7052 val_end += delta;
7053 next += delta;
7054 hdr_end += delta;
7055 hdr_next += delta;
7056 cur_hdr->len += delta;
7057 http_msg_move_end(&txn->req, delta);
7058 prev = del_from;
7059 del_from = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7060 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7061 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7062
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7063 /* continue with next cookie on this header line */
7064 att_beg = next;
7065 } /* for each cookie */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7066
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7067 /* There are no more cookies on this line.
7068 * We may still have one (or several) marked for deletion at the
7069 * end of the line. We must do this now in two ways :
7070 * - if some cookies must be preserved, we only delete from the
7071 * mark to the end of line ;
7072 * - if nothing needs to be preserved, simply delete the whole header
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7073 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7074 if (del_from) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7075 int delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7076 if (preserve_hdr) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7077 delta = del_hdr_value(req->buf, &del_from, hdr_end);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7078 hdr_end = del_from;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7079 cur_hdr->len += delta;
7080 } else {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7081 delta = buffer_replace2(req->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7082
7083 /* FIXME: this should be a separate function */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7084 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7085 txn->hdr_idx.used--;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7086 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7087 cur_idx = old_idx;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7088 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7089 hdr_next += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7090 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7091 }
7092
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7093 /* check next header */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7094 old_idx = cur_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7095 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7096}
7097
7098
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7099/* Iterate the same filter through all response headers contained in <rtr>.
7100 * Returns 1 if this filter can be stopped upon return, otherwise 0.
7101 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7102int 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]7103{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7104 char *cur_ptr, *cur_end, *cur_next;
7105 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7106 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7107 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7108 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7109
7110 last_hdr = 0;
7111
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7112 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7113 old_idx = 0;
7114
7115 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7116 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7117 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7118 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7119 (exp->action == ACT_ALLOW ||
7120 exp->action == ACT_DENY))
7121 return 0;
7122
7123 cur_idx = txn->hdr_idx.v[old_idx].next;
7124 if (!cur_idx)
7125 break;
7126
7127 cur_hdr = &txn->hdr_idx.v[cur_idx];
7128 cur_ptr = cur_next;
7129 cur_end = cur_ptr + cur_hdr->len;
7130 cur_next = cur_end + cur_hdr->cr + 1;
7131
7132 /* Now we have one header between cur_ptr and cur_end,
7133 * and the next header starts at cur_next.
7134 */
7135
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7136 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]7137 switch (exp->action) {
7138 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7139 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7140 last_hdr = 1;
7141 break;
7142
7143 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7144 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7145 last_hdr = 1;
7146 break;
7147
7148 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7149 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7150 if (trash.len < 0)
7151 return -1;
7152
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7153 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7154 /* FIXME: if the user adds a newline in the replacement, the
7155 * index will not be recalculated for now, and the new line
7156 * will not be counted as a new header.
7157 */
7158
7159 cur_end += delta;
7160 cur_next += delta;
7161 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7162 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7163 break;
7164
7165 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7166 delta = buffer_replace2(rtr->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7167 cur_next += delta;
7168
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7169 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7170 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7171 txn->hdr_idx.used--;
7172 cur_hdr->len = 0;
7173 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7174 cur_idx = old_idx;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7175 break;
7176
7177 }
7178 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7179
7180 /* keep the link from this header to next one in case of later
7181 * removal of next header.
7182 */
7183 old_idx = cur_idx;
7184 }
7185 return 0;
7186}
7187
7188
7189/* Apply the filter to the status line in the response buffer <rtr>.
7190 * Returns 0 if nothing has been done, 1 if the filter has been applied,
7191 * or -1 if a replacement resulted in an invalid status line.
7192 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7193int 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]7194{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7195 char *cur_ptr, *cur_end;
7196 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7197 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7198 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7199
7200
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7201 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7202 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7203 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7204 (exp->action == ACT_ALLOW ||
7205 exp->action == ACT_DENY))
7206 return 0;
7207 else if (exp->action == ACT_REMOVE)
7208 return 0;
7209
7210 done = 0;
7211
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7212 cur_ptr = rtr->buf->p;
Willy Tarreau1ba0e5f2010-06-07 13:57:32 +0200[diff] [blame]7213 cur_end = cur_ptr + txn->rsp.sl.st.l;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7214
7215 /* Now we have the status line between cur_ptr and cur_end */
7216
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7217 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]7218 switch (exp->action) {
7219 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7220 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7221 done = 1;
7222 break;
7223
7224 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7225 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7226 done = 1;
7227 break;
7228
7229 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7230 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7231 if (trash.len < 0)
7232 return -1;
7233
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7234 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7235 /* FIXME: if the user adds a newline in the replacement, the
7236 * index will not be recalculated for now, and the new line
7237 * will not be counted as a new header.
7238 */
7239
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7240 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7241 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7242 cur_end = (char *)http_parse_stsline(&txn->rsp,
Willy Tarreau02785762007-04-03 14:45:44 +0200[diff] [blame]7243 HTTP_MSG_RPVER,
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7244 cur_ptr, cur_end + 1,
7245 NULL, NULL);
7246 if (unlikely(!cur_end))
7247 return -1;
7248
7249 /* we have a full respnse and we know that we have either a CR
7250 * or an LF at <ptr>.
7251 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7252 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]7253 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]7254 /* there is no point trying this regex on headers */
7255 return 1;
7256 }
7257 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7258 return done;
7259}
7260
7261
7262
7263/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7264 * 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]7265 * Returns 0 if everything is alright, or -1 in case a replacement lead to an
7266 * unparsable response.
7267 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7268int apply_filters_to_response(struct stream *s, struct channel *rtr, struct proxy *px)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7269{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7270 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7271 struct http_txn *txn = s->txn;
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7272 struct hdr_exp *exp;
7273
7274 for (exp = px->rsp_exp; exp; exp = exp->next) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7275 int ret;
7276
7277 /*
7278 * The interleaving of transformations and verdicts
7279 * makes it difficult to decide to continue or stop
7280 * the evaluation.
7281 */
7282
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7283 if (txn->flags & TX_SVDENY)
7284 break;
7285
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7286 if ((txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7287 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
7288 exp->action == ACT_PASS)) {
7289 exp = exp->next;
7290 continue;
7291 }
7292
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7293 /* if this filter had a condition, evaluate it now and skip to
7294 * next filter if the condition does not match.
7295 */
7296 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7297 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]7298 ret = acl_pass(ret);
7299 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
7300 ret = !ret;
7301 if (!ret)
7302 continue;
7303 }
7304
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7305 /* Apply the filter to the status line. */
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7306 ret = apply_filter_to_sts_line(s, rtr, exp);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7307 if (unlikely(ret < 0))
7308 return -1;
7309
7310 if (likely(ret == 0)) {
7311 /* The filter did not match the response, it can be
7312 * iterated through all headers.
7313 */
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7314 if (unlikely(apply_filter_to_resp_headers(s, rtr, exp) < 0))
7315 return -1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7316 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7317 }
7318 return 0;
7319}
7320
7321
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7322/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]7323 * Manage server-side cookies. It can impact performance by about 2% so it is
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7324 * desirable to call it only when needed. This function is also used when we
7325 * just need to know if there is a cookie (eg: for check-cache).
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7326 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7327void manage_server_side_cookies(struct stream *s, struct channel *res)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7328{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7329 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7330 struct session *sess = s->sess;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7331 struct server *srv;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7332 int is_cookie2;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7333 int cur_idx, old_idx, delta;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7334 char *hdr_beg, *hdr_end, *hdr_next;
7335 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7336
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7337 /* Iterate through the headers.
7338 * we start with the start line.
7339 */
7340 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7341 hdr_next = res->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7342
7343 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
7344 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7345 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7346
7347 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7348 hdr_beg = hdr_next;
7349 hdr_end = hdr_beg + cur_hdr->len;
7350 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7351
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7352 /* We have one full header between hdr_beg and hdr_end, and the
7353 * next header starts at hdr_next. We're only interested in
7354 * "Set-Cookie" and "Set-Cookie2" headers.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7355 */
7356
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7357 is_cookie2 = 0;
7358 prev = hdr_beg + 10;
7359 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie", 10);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7360 if (!val) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7361 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie2", 11);
7362 if (!val) {
7363 old_idx = cur_idx;
7364 continue;
7365 }
7366 is_cookie2 = 1;
7367 prev = hdr_beg + 11;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7368 }
7369
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7370 /* OK, right now we know we have a Set-Cookie* at hdr_beg, and
7371 * <prev> points to the colon.
7372 */
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7373 txn->flags |= TX_SCK_PRESENT;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7374
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7375 /* Maybe we only wanted to see if there was a Set-Cookie (eg:
7376 * check-cache is enabled) and we are not interested in checking
7377 * them. Warning, the cookie capture is declared in the frontend.
Willy Tarreaufd39dda2008-10-17 12:01:58 +0200[diff] [blame]7378 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]7379 if (s->be->cookie_name == NULL && sess->fe->capture_name == NULL)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7380 return;
7381
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7382 /* OK so now we know we have to process this response cookie.
7383 * The format of the Set-Cookie header is slightly different
7384 * from the format of the Cookie header in that it does not
7385 * support the comma as a cookie delimiter (thus the header
7386 * cannot be folded) because the Expires attribute described in
7387 * the original Netscape's spec may contain an unquoted date
7388 * with a comma inside. We have to live with this because
7389 * many browsers don't support Max-Age and some browsers don't
7390 * support quoted strings. However the Set-Cookie2 header is
7391 * clean.
7392 *
7393 * We have to keep multiple pointers in order to support cookie
7394 * removal at the beginning, middle or end of header without
7395 * corrupting the header (in case of set-cookie2). A special
7396 * pointer, <scav> points to the beginning of the set-cookie-av
7397 * fields after the first semi-colon. The <next> pointer points
7398 * either to the end of line (set-cookie) or next unquoted comma
7399 * (set-cookie2). All of these headers are valid :
7400 *
7401 * Set-Cookie: NAME1 = VALUE 1 ; Secure; Path="/"\r\n
7402 * Set-Cookie:NAME=VALUE; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7403 * Set-Cookie: NAME = VALUE ; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7404 * Set-Cookie2: NAME1 = VALUE 1 ; Max-Age=0, NAME2=VALUE2; Discard\r\n
7405 * | | | | | | | | | |
7406 * | | | | | | | | +-> next hdr_end <--+
7407 * | | | | | | | +------------> scav
7408 * | | | | | | +--------------> val_end
7409 * | | | | | +--------------------> val_beg
7410 * | | | | +----------------------> equal
7411 * | | | +------------------------> att_end
7412 * | | +----------------------------> att_beg
7413 * | +------------------------------> prev
7414 * +-----------------------------------------> hdr_beg
7415 */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7416
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7417 for (; prev < hdr_end; prev = next) {
7418 /* Iterate through all cookies on this line */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7419
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7420 /* find att_beg */
7421 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7422 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7423 att_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7424
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7425 /* find att_end : this is the first character after the last non
7426 * space before the equal. It may be equal to hdr_end.
7427 */
7428 equal = att_end = att_beg;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7429
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7430 while (equal < hdr_end) {
7431 if (*equal == '=' || *equal == ';' || (is_cookie2 && *equal == ','))
7432 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7433 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7434 continue;
7435 att_end = equal;
7436 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7437
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7438 /* here, <equal> points to '=', a delimitor or the end. <att_end>
7439 * is between <att_beg> and <equal>, both may be identical.
7440 */
7441
7442 /* look for end of cookie if there is an equal sign */
7443 if (equal < hdr_end && *equal == '=') {
7444 /* look for the beginning of the value */
7445 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7446 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7447 val_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7448
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7449 /* find the end of the value, respecting quotes */
7450 next = find_cookie_value_end(val_beg, hdr_end);
7451
7452 /* make val_end point to the first white space or delimitor after the value */
7453 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7454 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7455 val_end--;
7456 } else {
7457 /* <equal> points to next comma, semi-colon or EOL */
7458 val_beg = val_end = next = equal;
7459 }
7460
7461 if (next < hdr_end) {
7462 /* Set-Cookie2 supports multiple cookies, and <next> points to
7463 * a colon or semi-colon before the end. So skip all attr-value
7464 * pairs and look for the next comma. For Set-Cookie, since
7465 * commas are permitted in values, skip to the end.
7466 */
7467 if (is_cookie2)
7468 next = find_hdr_value_end(next, hdr_end);
7469 else
7470 next = hdr_end;
7471 }
7472
7473 /* Now everything is as on the diagram above */
7474
7475 /* Ignore cookies with no equal sign */
7476 if (equal == val_end)
7477 continue;
7478
7479 /* If there are spaces around the equal sign, we need to
7480 * strip them otherwise we'll get trouble for cookie captures,
7481 * or even for rewrites. Since this happens extremely rarely,
7482 * it does not hurt performance.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7483 */
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7484 if (unlikely(att_end != equal || val_beg > equal + 1)) {
7485 int stripped_before = 0;
7486 int stripped_after = 0;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7487
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7488 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7489 stripped_before = buffer_replace2(res->buf, att_end, equal, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7490 equal += stripped_before;
7491 val_beg += stripped_before;
7492 }
7493
7494 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7495 stripped_after = buffer_replace2(res->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7496 val_beg += stripped_after;
7497 stripped_before += stripped_after;
7498 }
7499
7500 val_end += stripped_before;
7501 next += stripped_before;
7502 hdr_end += stripped_before;
7503 hdr_next += stripped_before;
7504 cur_hdr->len += stripped_before;
Willy Tarreau1fc1f452011-04-07 22:35:37 +0200[diff] [blame]7505 http_msg_move_end(&txn->rsp, stripped_before);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7506 }
7507
7508 /* First, let's see if we want to capture this cookie. We check
7509 * that we don't already have a server side cookie, because we
7510 * can only capture one. Also as an optimisation, we ignore
7511 * cookies shorter than the declared name.
7512 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7513 if (sess->fe->capture_name != NULL &&
Willy Tarreau3bac9ff2007-03-18 17:31:28 +0100[diff] [blame]7514 txn->srv_cookie == NULL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7515 (val_end - att_beg >= sess->fe->capture_namelen) &&
7516 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7517 int log_len = val_end - att_beg;
Willy Tarreau086b3b42007-05-13 21:45:51 +0200[diff] [blame]7518 if ((txn->srv_cookie = pool_alloc2(pool2_capture)) == NULL) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7519 Alert("HTTP logging : out of memory.\n");
7520 }
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7521 else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7522 if (log_len > sess->fe->capture_len)
7523 log_len = sess->fe->capture_len;
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7524 memcpy(txn->srv_cookie, att_beg, log_len);
7525 txn->srv_cookie[log_len] = 0;
7526 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7527 }
7528
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7529 srv = objt_server(s->target);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7530 /* now check if we need to process it for persistence */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7531 if (!(s->flags & SF_IGNORE_PRST) &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7532 (att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
7533 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7534 /* assume passive cookie by default */
7535 txn->flags &= ~TX_SCK_MASK;
7536 txn->flags |= TX_SCK_FOUND;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7537
7538 /* If the cookie is in insert mode on a known server, we'll delete
7539 * this occurrence because we'll insert another one later.
7540 * 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]7541 * a direct access.
7542 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7543 if (s->be->ck_opts & PR_CK_PSV) {
Willy Tarreauba4c5be2010-10-23 12:46:42 +0200[diff] [blame]7544 /* The "preserve" flag was set, we don't want to touch the
7545 * server's cookie.
7546 */
7547 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7548 else if ((srv && (s->be->ck_opts & PR_CK_INS)) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7549 ((s->flags & SF_DIRECT) && (s->be->ck_opts & PR_CK_IND))) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7550 /* this cookie must be deleted */
7551 if (*prev == ':' && next == hdr_end) {
7552 /* whole header */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7553 delta = buffer_replace2(res->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7554 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7555 txn->hdr_idx.used--;
7556 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7557 cur_idx = old_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7558 hdr_next += delta;
7559 http_msg_move_end(&txn->rsp, delta);
7560 /* note: while both invalid now, <next> and <hdr_end>
7561 * are still equal, so the for() will stop as expected.
7562 */
7563 } else {
7564 /* just remove the value */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7565 int delta = del_hdr_value(res->buf, &prev, next);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7566 next = prev;
7567 hdr_end += delta;
7568 hdr_next += delta;
7569 cur_hdr->len += delta;
7570 http_msg_move_end(&txn->rsp, delta);
7571 }
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7572 txn->flags &= ~TX_SCK_MASK;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7573 txn->flags |= TX_SCK_DELETED;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7574 /* and go on with next cookie */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7575 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7576 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_RW)) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7577 /* replace bytes val_beg->val_end with the cookie name associated
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7578 * with this server since we know it.
7579 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7580 delta = buffer_replace2(res->buf, val_beg, val_end, srv->cookie, srv->cklen);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7581 next += delta;
7582 hdr_end += delta;
7583 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7584 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7585 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7586
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7587 txn->flags &= ~TX_SCK_MASK;
7588 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7589 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7590 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_PFX)) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7591 /* insert the cookie name associated with this server
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7592 * before existing cookie, and insert a delimiter between them..
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7593 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7594 delta = buffer_replace2(res->buf, val_beg, val_beg, srv->cookie, srv->cklen + 1);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7595 next += delta;
7596 hdr_end += delta;
7597 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7598 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7599 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7600
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7601 val_beg[srv->cklen] = COOKIE_DELIM;
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7602 txn->flags &= ~TX_SCK_MASK;
7603 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7604 }
7605 }
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7606 /* that's done for this cookie, check the next one on the same
7607 * line when next != hdr_end (only if is_cookie2).
7608 */
7609 }
7610 /* check next header */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7611 old_idx = cur_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7612 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7613}
7614
7615
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7616/*
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7617 * Check if response is cacheable or not. Updates s->flags.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7618 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7619void check_response_for_cacheability(struct stream *s, struct channel *rtr)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7620{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7621 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7622 char *p1, *p2;
7623
7624 char *cur_ptr, *cur_end, *cur_next;
7625 int cur_idx;
7626
Willy Tarreau5df51872007-11-25 16:20:08 +0100[diff] [blame]7627 if (!(txn->flags & TX_CACHEABLE))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7628 return;
7629
7630 /* Iterate through the headers.
7631 * we start with the start line.
7632 */
7633 cur_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7634 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7635
7636 while ((cur_idx = txn->hdr_idx.v[cur_idx].next)) {
7637 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7638 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7639
7640 cur_hdr = &txn->hdr_idx.v[cur_idx];
7641 cur_ptr = cur_next;
7642 cur_end = cur_ptr + cur_hdr->len;
7643 cur_next = cur_end + cur_hdr->cr + 1;
7644
7645 /* We have one full header between cur_ptr and cur_end, and the
7646 * next header starts at cur_next. We're only interested in
7647 * "Cookie:" headers.
7648 */
7649
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7650 val = http_header_match2(cur_ptr, cur_end, "Pragma", 6);
7651 if (val) {
7652 if ((cur_end - (cur_ptr + val) >= 8) &&
7653 strncasecmp(cur_ptr + val, "no-cache", 8) == 0) {
7654 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7655 return;
7656 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7657 }
7658
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7659 val = http_header_match2(cur_ptr, cur_end, "Cache-control", 13);
7660 if (!val)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7661 continue;
7662
7663 /* OK, right now we know we have a cache-control header at cur_ptr */
7664
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7665 p1 = cur_ptr + val; /* first non-space char after 'cache-control:' */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7666
7667 if (p1 >= cur_end) /* no more info */
7668 continue;
7669
7670 /* p1 is at the beginning of the value */
7671 p2 = p1;
7672
Willy Tarreau8f8e6452007-06-17 21:51:38 +0200[diff] [blame]7673 while (p2 < cur_end && *p2 != '=' && *p2 != ',' && !isspace((unsigned char)*p2))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7674 p2++;
7675
7676 /* we have a complete value between p1 and p2 */
7677 if (p2 < cur_end && *p2 == '=') {
7678 /* we have something of the form no-cache="set-cookie" */
7679 if ((cur_end - p1 >= 21) &&
7680 strncasecmp(p1, "no-cache=\"set-cookie", 20) == 0
7681 && (p1[20] == '"' || p1[20] == ','))
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7682 txn->flags &= ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7683 continue;
7684 }
7685
7686 /* OK, so we know that either p2 points to the end of string or to a comma */
7687 if (((p2 - p1 == 7) && strncasecmp(p1, "private", 7) == 0) ||
Willy Tarreau5b15f902013-07-04 12:46:56 +0200[diff] [blame]7688 ((p2 - p1 == 8) && strncasecmp(p1, "no-cache", 8) == 0) ||
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7689 ((p2 - p1 == 8) && strncasecmp(p1, "no-store", 8) == 0) ||
7690 ((p2 - p1 == 9) && strncasecmp(p1, "max-age=0", 9) == 0) ||
7691 ((p2 - p1 == 10) && strncasecmp(p1, "s-maxage=0", 10) == 0)) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7692 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7693 return;
7694 }
7695
7696 if ((p2 - p1 == 6) && strncasecmp(p1, "public", 6) == 0) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7697 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7698 continue;
7699 }
7700 }
7701}
7702
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7703
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7704/*
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7705 * 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]7706 * for the current backend.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7707 *
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7708 * 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]7709 * uri_auth field is valid.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7710 *
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7711 * Returns 1 if stats should be provided, otherwise 0.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7712 */
Willy Tarreau295a8372011-03-10 11:25:07 +0100[diff] [blame]7713int stats_check_uri(struct stream_interface *si, struct http_txn *txn, struct proxy *backend)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7714{
7715 struct uri_auth *uri_auth = backend->uri_auth;
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]7716 struct http_msg *msg = &txn->req;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7717 const char *uri = msg->chn->buf->p+ msg->sl.rq.u;
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7718
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7719 if (!uri_auth)
7720 return 0;
7721
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7722 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]7723 return 0;
7724
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7725 /* check URI size */
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]7726 if (uri_auth->uri_len > msg->sl.rq.u_l)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7727 return 0;
7728
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]7729 if (memcmp(uri, uri_auth->uri_prefix, uri_auth->uri_len) != 0)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7730 return 0;
7731
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7732 return 1;
7733}
7734
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7735/*
7736 * Capture a bad request or response and archive it in the proxy's structure.
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7737 * By default it tries to report the error position as msg->err_pos. However if
7738 * this one is not set, it will then report msg->next, which is the last known
7739 * parsing point. The function is able to deal with wrapping buffers. It always
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7740 * displays buffers as a contiguous area starting at buf->p.
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7741 */
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]7742void http_capture_bad_message(struct proxy *proxy, struct error_snapshot *es, struct stream *s,
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]7743 struct http_msg *msg,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]7744 enum h1_state state, struct proxy *other_end)
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7745{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7746 struct session *sess = strm_sess(s);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7747 struct channel *chn = msg->chn;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7748 int len1, len2;
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]7749
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]7750 SPIN_LOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]7751 es->len = MIN(chn->buf->i, global.tune.bufsize);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7752 len1 = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7753 len1 = MIN(len1, es->len);
7754 len2 = es->len - len1; /* remaining data if buffer wraps */
7755
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]7756 if (!es->buf)
7757 es->buf = malloc(global.tune.bufsize);
7758
7759 if (es->buf) {
7760 memcpy(es->buf, chn->buf->p, len1);
7761 if (len2)
7762 memcpy(es->buf + len1, chn->buf->data, len2);
7763 }
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7764
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7765 if (msg->err_pos >= 0)
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7766 es->pos = msg->err_pos;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7767 else
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7768 es->pos = msg->next;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7769
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7770 es->when = date; // user-visible date
7771 es->sid = s->uniq_id;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]7772 es->srv = objt_server(s->target);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7773 es->oe = other_end;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7774 if (objt_conn(sess->origin))
7775 es->src = __objt_conn(sess->origin)->addr.from;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]7776 else
7777 memset(&es->src, 0, sizeof(es->src));
7778
Willy Tarreau078272e2010-12-12 12:46:33 +0100[diff] [blame]7779 es->state = state;
Willy Tarreau10479e42010-12-12 14:00:34 +0100[diff] [blame]7780 es->ev_id = error_snapshot_id++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7781 es->b_flags = chn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7782 es->s_flags = s->flags;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7783 es->t_flags = s->txn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7784 es->m_flags = msg->flags;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7785 es->b_out = chn->buf->o;
7786 es->b_wrap = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7787 es->b_tot = chn->total;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7788 es->m_clen = msg->chunk_len;
7789 es->m_blen = msg->body_len;
Emeric Brun8c1aaa22017-06-15 11:30:06 +0200[diff] [blame]7790 SPIN_UNLOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7791}
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7792
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7793/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
7794 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
7795 * performed over the whole headers. Otherwise it must contain a valid header
7796 * context, initialised with ctx->idx=0 for the first lookup in a series. If
7797 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
7798 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
7799 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7800 * -1. The value fetch stops at commas, so this function is suited for use with
7801 * list headers.
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7802 * The return value is 0 if nothing was found, or non-zero otherwise.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7803 */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]7804unsigned int http_get_hdr(const struct http_msg *msg, const char *hname, int hlen,
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7805 struct hdr_idx *idx, int occ,
7806 struct hdr_ctx *ctx, char **vptr, int *vlen)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7807{
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7808 struct hdr_ctx local_ctx;
7809 char *ptr_hist[MAX_HDR_HISTORY];
7810 int len_hist[MAX_HDR_HISTORY];
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7811 unsigned int hist_ptr;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7812 int found;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7813
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7814 if (!ctx) {
7815 local_ctx.idx = 0;
7816 ctx = &local_ctx;
7817 }
7818
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7819 if (occ >= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7820 /* search from the beginning */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7821 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7822 occ--;
7823 if (occ <= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7824 *vptr = ctx->line + ctx->val;
7825 *vlen = ctx->vlen;
7826 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7827 }
7828 }
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7829 return 0;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7830 }
7831
7832 /* negative occurrence, we scan all the list then walk back */
7833 if (-occ > MAX_HDR_HISTORY)
7834 return 0;
7835
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7836 found = hist_ptr = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7837 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7838 ptr_hist[hist_ptr] = ctx->line + ctx->val;
7839 len_hist[hist_ptr] = ctx->vlen;
7840 if (++hist_ptr >= MAX_HDR_HISTORY)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7841 hist_ptr = 0;
7842 found++;
7843 }
7844 if (-occ > found)
7845 return 0;
7846 /* 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]7847 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
7848 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
7849 * to remain in the 0..9 range.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7850 */
Willy Tarreau67dad272013-06-12 22:27:44 +0200[diff] [blame]7851 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7852 if (hist_ptr >= MAX_HDR_HISTORY)
7853 hist_ptr -= MAX_HDR_HISTORY;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7854 *vptr = ptr_hist[hist_ptr];
7855 *vlen = len_hist[hist_ptr];
7856 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7857}
7858
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7859/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
7860 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
7861 * performed over the whole headers. Otherwise it must contain a valid header
7862 * context, initialised with ctx->idx=0 for the first lookup in a series. If
7863 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
7864 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
7865 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
7866 * -1. This function differs from http_get_hdr() in that it only returns full
7867 * line header values and does not stop at commas.
7868 * The return value is 0 if nothing was found, or non-zero otherwise.
7869 */
7870unsigned int http_get_fhdr(const struct http_msg *msg, const char *hname, int hlen,
7871 struct hdr_idx *idx, int occ,
7872 struct hdr_ctx *ctx, char **vptr, int *vlen)
7873{
7874 struct hdr_ctx local_ctx;
7875 char *ptr_hist[MAX_HDR_HISTORY];
7876 int len_hist[MAX_HDR_HISTORY];
7877 unsigned int hist_ptr;
7878 int found;
7879
7880 if (!ctx) {
7881 local_ctx.idx = 0;
7882 ctx = &local_ctx;
7883 }
7884
7885 if (occ >= 0) {
7886 /* search from the beginning */
7887 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
7888 occ--;
7889 if (occ <= 0) {
7890 *vptr = ctx->line + ctx->val;
7891 *vlen = ctx->vlen;
7892 return 1;
7893 }
7894 }
7895 return 0;
7896 }
7897
7898 /* negative occurrence, we scan all the list then walk back */
7899 if (-occ > MAX_HDR_HISTORY)
7900 return 0;
7901
7902 found = hist_ptr = 0;
7903 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
7904 ptr_hist[hist_ptr] = ctx->line + ctx->val;
7905 len_hist[hist_ptr] = ctx->vlen;
7906 if (++hist_ptr >= MAX_HDR_HISTORY)
7907 hist_ptr = 0;
7908 found++;
7909 }
7910 if (-occ > found)
7911 return 0;
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]7912
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7913 /* 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]7914 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
7915 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
7916 * to remain in the 0..9 range.
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7917 */
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]7918 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7919 if (hist_ptr >= MAX_HDR_HISTORY)
7920 hist_ptr -= MAX_HDR_HISTORY;
7921 *vptr = ptr_hist[hist_ptr];
7922 *vlen = len_hist[hist_ptr];
7923 return 1;
7924}
7925
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]7926/*
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]7927 * Print a debug line with a header. Always stop at the first CR or LF char,
7928 * so it is safe to pass it a full buffer if needed. If <err> is not NULL, an
7929 * arrow is printed after the line which contains the pointer.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7930 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7931void debug_hdr(const char *dir, struct stream *s, const char *start, const char *end)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7932{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7933 struct session *sess = strm_sess(s);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7934 int max;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7935
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7936 chunk_printf(&trash, "%08x:%s.%s[%04x:%04x]: ", s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]7937 dir,
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]7938 objt_conn(sess->origin) ? (unsigned short)objt_conn(sess->origin)->handle.fd : -1,
7939 objt_conn(s->si[1].end) ? (unsigned short)objt_conn(s->si[1].end)->handle.fd : -1);
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]7940
7941 for (max = 0; start + max < end; max++)
7942 if (start[max] == '\r' || start[max] == '\n')
7943 break;
7944
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7945 UBOUND(max, trash.size - trash.len - 3);
7946 trash.len += strlcpy2(trash.str + trash.len, start, max + 1);
7947 trash.str[trash.len++] = '\n';
Willy Tarreau89efaed2013-12-13 15:14:55 +0100[diff] [blame]7948 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7949}
7950
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7951
7952/* Allocate a new HTTP transaction for stream <s> unless there is one already.
7953 * The hdr_idx is allocated as well. In case of allocation failure, everything
7954 * allocated is freed and NULL is returned. Otherwise the new transaction is
7955 * assigned to the stream and returned.
7956 */
7957struct http_txn *http_alloc_txn(struct stream *s)
7958{
7959 struct http_txn *txn = s->txn;
7960
7961 if (txn)
7962 return txn;
7963
7964 txn = pool_alloc2(pool2_http_txn);
7965 if (!txn)
7966 return txn;
7967
7968 txn->hdr_idx.size = global.tune.max_http_hdr;
7969 txn->hdr_idx.v = pool_alloc2(pool2_hdr_idx);
7970 if (!txn->hdr_idx.v) {
7971 pool_free2(pool2_http_txn, txn);
7972 return NULL;
7973 }
7974
7975 s->txn = txn;
7976 return txn;
7977}
7978
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]7979void http_txn_reset_req(struct http_txn *txn)
7980{
7981 txn->req.flags = 0;
7982 txn->req.sol = txn->req.eol = txn->req.eoh = 0; /* relative to the buffer */
7983 txn->req.next = 0;
7984 txn->req.chunk_len = 0LL;
7985 txn->req.body_len = 0LL;
7986 txn->req.msg_state = HTTP_MSG_RQBEFORE; /* at the very beginning of the request */
7987}
7988
7989void http_txn_reset_res(struct http_txn *txn)
7990{
7991 txn->rsp.flags = 0;
7992 txn->rsp.sol = txn->rsp.eol = txn->rsp.eoh = 0; /* relative to the buffer */
7993 txn->rsp.next = 0;
7994 txn->rsp.chunk_len = 0LL;
7995 txn->rsp.body_len = 0LL;
7996 txn->rsp.msg_state = HTTP_MSG_RPBEFORE; /* at the very beginning of the response */
7997}
7998
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7999/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8000 * Initialize a new HTTP transaction for stream <s>. It is assumed that all
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8001 * the required fields are properly allocated and that we only need to (re)init
8002 * them. This should be used before processing any new request.
8003 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8004void http_init_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8005{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8006 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8007 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8008
8009 txn->flags = 0;
8010 txn->status = -1;
8011
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]8012 txn->cookie_first_date = 0;
8013 txn->cookie_last_date = 0;
8014
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8015 txn->srv_cookie = NULL;
8016 txn->cli_cookie = NULL;
8017 txn->uri = NULL;
8018
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8019 http_txn_reset_req(txn);
8020 http_txn_reset_res(txn);
8021
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8022 txn->req.chn = &s->req;
8023 txn->rsp.chn = &s->res;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8024
8025 txn->auth.method = HTTP_AUTH_UNKNOWN;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8026
8027 txn->req.err_pos = txn->rsp.err_pos = -2; /* block buggy requests/responses */
8028 if (fe->options2 & PR_O2_REQBUG_OK)
8029 txn->req.err_pos = -1; /* let buggy requests pass */
8030
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8031 if (txn->hdr_idx.v)
8032 hdr_idx_init(&txn->hdr_idx);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]8033
8034 vars_init(&s->vars_txn, SCOPE_TXN);
8035 vars_init(&s->vars_reqres, SCOPE_REQ);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8036}
8037
8038/* to be used at the end of a transaction */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8039void http_end_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8040{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8041 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8042 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8043
8044 /* these ones will have been dynamically allocated */
8045 pool_free2(pool2_requri, txn->uri);
8046 pool_free2(pool2_capture, txn->cli_cookie);
8047 pool_free2(pool2_capture, txn->srv_cookie);
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]8048 pool_free2(pool2_uniqueid, s->unique_id);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8049
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]8050 s->unique_id = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8051 txn->uri = NULL;
8052 txn->srv_cookie = NULL;
8053 txn->cli_cookie = NULL;
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8054
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8055 if (s->req_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8056 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8057 for (h = fe->req_cap; h; h = h->next)
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8058 pool_free2(h->pool, s->req_cap[h->index]);
8059 memset(s->req_cap, 0, fe->nb_req_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8060 }
8061
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8062 if (s->res_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8063 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8064 for (h = fe->rsp_cap; h; h = h->next)
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8065 pool_free2(h->pool, s->res_cap[h->index]);
8066 memset(s->res_cap, 0, fe->nb_rsp_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8067 }
8068
Willy Tarreau6204cd92016-03-10 16:33:04 +0100[diff] [blame]8069 vars_prune(&s->vars_txn, s->sess, s);
8070 vars_prune(&s->vars_reqres, s->sess, s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8071}
8072
8073/* to be used at the end of a transaction to prepare a new one */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8074void http_reset_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8075{
8076 http_end_txn(s);
8077 http_init_txn(s);
8078
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]8079 /* reinitialise the current rule list pointer to NULL. We are sure that
8080 * any rulelist match the NULL pointer.
8081 */
8082 s->current_rule_list = NULL;
8083
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8084 s->be = strm_fe(s);
8085 s->logs.logwait = strm_fe(s)->to_log;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]8086 s->logs.level = 0;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8087 stream_del_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]8088 s->target = NULL;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8089 /* re-init store persistence */
8090 s->store_count = 0;
Willy Tarreau1f0da242014-01-25 11:01:50 +0100[diff] [blame]8091 s->uniq_id = global.req_count++;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8092
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8093 s->pend_pos = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8094
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8095 s->req.flags |= CF_READ_DONTWAIT; /* one read is usually enough */
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8096
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8097 /* We must trim any excess data from the response buffer, because we
8098 * may have blocked an invalid response from a server that we don't
8099 * want to accidentely forward once we disable the analysers, nor do
8100 * we want those data to come along with next response. A typical
8101 * example of such data would be from a buggy server responding to
8102 * a HEAD with some data, or sending more than the advertised
8103 * content-length.
8104 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8105 if (unlikely(s->res.buf->i))
8106 s->res.buf->i = 0;
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8107
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]8108 /* Now we can realign the response buffer */
8109 buffer_realign(s->res.buf);
8110
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8111 s->req.rto = strm_fe(s)->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8112 s->req.wto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8113
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8114 s->res.rto = TICK_ETERNITY;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8115 s->res.wto = strm_fe(s)->timeout.client;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8116
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8117 s->req.rex = TICK_ETERNITY;
8118 s->req.wex = TICK_ETERNITY;
8119 s->req.analyse_exp = TICK_ETERNITY;
8120 s->res.rex = TICK_ETERNITY;
8121 s->res.wex = TICK_ETERNITY;
8122 s->res.analyse_exp = TICK_ETERNITY;
Hongbo Longe39683c2017-03-10 18:41:51 +0100[diff] [blame]8123 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8124}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8125
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8126void free_http_res_rules(struct list *r)
8127{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8128 struct act_rule *tr, *pr;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8129
8130 list_for_each_entry_safe(pr, tr, r, list) {
8131 LIST_DEL(&pr->list);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8132 regex_free(&pr->arg.hdr_add.re);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8133 free(pr);
8134 }
8135}
8136
8137void free_http_req_rules(struct list *r)
8138{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8139 struct act_rule *tr, *pr;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8140
8141 list_for_each_entry_safe(pr, tr, r, list) {
8142 LIST_DEL(&pr->list);
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8143 if (pr->action == ACT_HTTP_REQ_AUTH)
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8144 free(pr->arg.auth.realm);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8145
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8146 regex_free(&pr->arg.hdr_add.re);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8147 free(pr);
8148 }
8149}
8150
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8151/* parse an "http-request" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8152struct 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]8153{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8154 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8155 struct action_kw *custom = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8156 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8157 char *error;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8158
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]8159 rule = calloc(1, sizeof(*rule));
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8160 if (!rule) {
8161 Alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8162 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8163 }
8164
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8165 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8166 rule->action = ACT_ACTION_ALLOW;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8167 cur_arg = 1;
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8168 } else if (!strcmp(args[0], "deny") || !strcmp(args[0], "block") || !strcmp(args[0], "tarpit")) {
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8169 int code;
8170 int hc;
8171
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8172 if (!strcmp(args[0], "tarpit")) {
8173 rule->action = ACT_HTTP_REQ_TARPIT;
8174 rule->deny_status = HTTP_ERR_500;
8175 }
8176 else {
8177 rule->action = ACT_ACTION_DENY;
8178 rule->deny_status = HTTP_ERR_403;
8179 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8180 cur_arg = 1;
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8181 if (strcmp(args[cur_arg], "deny_status") == 0) {
8182 cur_arg++;
8183 if (!args[cur_arg]) {
8184 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing status code.\n",
8185 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
8186 goto out_err;
8187 }
8188
8189 code = atol(args[cur_arg]);
8190 cur_arg++;
8191 for (hc = 0; hc < HTTP_ERR_SIZE; hc++) {
8192 if (http_err_codes[hc] == code) {
8193 rule->deny_status = hc;
8194 break;
8195 }
8196 }
8197
8198 if (hc >= HTTP_ERR_SIZE) {
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8199 Warning("parsing [%s:%d] : status code %d not handled, using default code %d.\n",
8200 file, linenum, code, http_err_codes[rule->deny_status]);
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8201 }
8202 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8203 } else if (!strcmp(args[0], "auth")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8204 rule->action = ACT_HTTP_REQ_AUTH;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8205 cur_arg = 1;
8206
8207 while(*args[cur_arg]) {
8208 if (!strcmp(args[cur_arg], "realm")) {
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8209 rule->arg.auth.realm = strdup(args[cur_arg + 1]);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8210 cur_arg+=2;
8211 continue;
8212 } else
8213 break;
8214 }
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8215 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8216 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8217 cur_arg = 1;
8218
8219 if (!*args[cur_arg] ||
8220 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8221 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer value).\n",
8222 file, linenum, args[0]);
8223 goto out_err;
8224 }
8225 rule->arg.nice = atoi(args[cur_arg]);
8226 if (rule->arg.nice < -1024)
8227 rule->arg.nice = -1024;
8228 else if (rule->arg.nice > 1024)
8229 rule->arg.nice = 1024;
8230 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8231 } else if (!strcmp(args[0], "set-tos")) {
8232#ifdef IP_TOS
8233 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8234 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8235 cur_arg = 1;
8236
8237 if (!*args[cur_arg] ||
8238 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8239 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8240 file, linenum, args[0]);
8241 goto out_err;
8242 }
8243
8244 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8245 if (err && *err != '\0') {
8246 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8247 file, linenum, err, args[0]);
8248 goto out_err;
8249 }
8250 cur_arg++;
8251#else
8252 Alert("parsing [%s:%d]: 'http-request %s' is not supported on this platform (IP_TOS undefined).\n", file, linenum, args[0]);
8253 goto out_err;
8254#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8255 } else if (!strcmp(args[0], "set-mark")) {
8256#ifdef SO_MARK
8257 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8258 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8259 cur_arg = 1;
8260
8261 if (!*args[cur_arg] ||
8262 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8263 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8264 file, linenum, args[0]);
8265 goto out_err;
8266 }
8267
8268 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8269 if (err && *err != '\0') {
8270 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8271 file, linenum, err, args[0]);
8272 goto out_err;
8273 }
8274 cur_arg++;
8275 global.last_checks |= LSTCHK_NETADM;
8276#else
8277 Alert("parsing [%s:%d]: 'http-request %s' is not supported on this platform (SO_MARK undefined).\n", file, linenum, args[0]);
8278 goto out_err;
8279#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8280 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8281 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8282 cur_arg = 1;
8283
8284 if (!*args[cur_arg] ||
8285 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8286 bad_log_level:
8287 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (log level name or 'silent').\n",
8288 file, linenum, args[0]);
8289 goto out_err;
8290 }
8291 if (strcmp(args[cur_arg], "silent") == 0)
8292 rule->arg.loglevel = -1;
8293 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
8294 goto bad_log_level;
8295 cur_arg++;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8296 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8297 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8298 cur_arg = 1;
8299
Willy Tarreau8d1c5162013-04-03 14:13:58 +0200[diff] [blame]8300 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8301 (*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]8302 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8303 file, linenum, args[0]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8304 goto out_err;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8305 }
8306
8307 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8308 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8309 LIST_INIT(&rule->arg.hdr_add.fmt);
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]8310
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8311 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8312 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8313 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]8314 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8315 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8316 file, linenum, args[0], error);
8317 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8318 goto out_err;
8319 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8320 free(proxy->conf.lfs_file);
8321 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8322 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8323 cur_arg += 2;
Willy Tarreaub8543922014-06-17 18:58:26 +0200[diff] [blame]8324 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8325 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8326 cur_arg = 1;
8327
8328 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann92df3702014-06-24 11:10:00 +0200[diff] [blame]8329 (*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]8330 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 3 arguments.\n",
8331 file, linenum, args[0]);
8332 goto out_err;
8333 }
8334
8335 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8336 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8337 LIST_INIT(&rule->arg.hdr_add.fmt);
8338
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8339 error = NULL;
8340 if (!regex_comp(args[cur_arg + 1], &rule->arg.hdr_add.re, 1, 1, &error)) {
8341 Alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8342 args[cur_arg + 1], error);
8343 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8344 goto out_err;
8345 }
8346
8347 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8348 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8349 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]8350 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8351 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8352 file, linenum, args[0], error);
8353 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8354 goto out_err;
8355 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8356
8357 free(proxy->conf.lfs_file);
8358 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8359 proxy->conf.lfs_line = proxy->conf.args.line;
8360 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8361 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8362 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8363 cur_arg = 1;
8364
8365 if (!*args[cur_arg] ||
8366 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8367 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8368 file, linenum, args[0]);
8369 goto out_err;
8370 }
8371
8372 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8373 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8374
8375 proxy->conf.args.ctx = ARGC_HRQ;
8376 free(proxy->conf.lfs_file);
8377 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8378 proxy->conf.lfs_line = proxy->conf.args.line;
8379 cur_arg += 1;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8380 } else if (strncmp(args[0], "track-sc", 8) == 0 &&
8381 args[0][9] == '\0' && args[0][8] >= '0' &&
Willy Tarreaue1cfc1f2014-10-17 11:53:05 +0200[diff] [blame]8382 args[0][8] < '0' + MAX_SESS_STKCTR) { /* track-sc 0..9 */
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8383 struct sample_expr *expr;
8384 unsigned int where;
8385 char *err = NULL;
8386
8387 cur_arg = 1;
8388 proxy->conf.args.ctx = ARGC_TRK;
8389
8390 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
8391 if (!expr) {
8392 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8393 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
8394 free(err);
8395 goto out_err;
8396 }
8397
8398 where = 0;
8399 if (proxy->cap & PR_CAP_FE)
8400 where |= SMP_VAL_FE_HRQ_HDR;
8401 if (proxy->cap & PR_CAP_BE)
8402 where |= SMP_VAL_BE_HRQ_HDR;
8403
8404 if (!(expr->fetch->val & where)) {
8405 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule :"
8406 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
8407 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
8408 args[cur_arg-1], sample_src_names(expr->fetch->use));
8409 free(expr);
8410 goto out_err;
8411 }
8412
8413 if (strcmp(args[cur_arg], "table") == 0) {
8414 cur_arg++;
8415 if (!args[cur_arg]) {
8416 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing table name.\n",
8417 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
8418 free(expr);
8419 goto out_err;
8420 }
8421 /* we copy the table name for now, it will be resolved later */
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8422 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8423 cur_arg++;
8424 }
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8425 rule->arg.trk_ctr.expr = expr;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8426 rule->action = ACT_ACTION_TRK_SC0 + args[0][8] - '0';
Christopher Faulet78880fb2017-09-18 14:43:55 +0200[diff] [blame]8427 rule->check_ptr = check_trk_action;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8428 } else if (strcmp(args[0], "redirect") == 0) {
8429 struct redirect_rule *redir;
Willy Tarreau6d4890c2013-11-18 18:04:25 +0100[diff] [blame]8430 char *errmsg = NULL;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8431
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]8432 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]8433 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8434 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
8435 goto out_err;
8436 }
8437
8438 /* this redirect rule might already contain a parsed condition which
8439 * we'll pass to the http-request rule.
8440 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8441 rule->action = ACT_HTTP_REDIR;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8442 rule->arg.redir = redir;
8443 rule->cond = redir->cond;
8444 redir->cond = NULL;
8445 cur_arg = 2;
8446 return rule;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8447 } else if (strncmp(args[0], "add-acl", 7) == 0) {
8448 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8449 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8450 /*
8451 * '+ 8' for 'add-acl('
8452 * '- 9' for 'add-acl(' + trailing ')'
8453 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8454 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8455
8456 cur_arg = 1;
8457
8458 if (!*args[cur_arg] ||
8459 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8460 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8461 file, linenum, args[0]);
8462 goto out_err;
8463 }
8464
8465 LIST_INIT(&rule->arg.map.key);
8466 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8467 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8468 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]8469 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8470 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8471 file, linenum, args[0], error);
8472 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8473 goto out_err;
8474 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8475 free(proxy->conf.lfs_file);
8476 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8477 proxy->conf.lfs_line = proxy->conf.args.line;
8478 cur_arg += 1;
8479 } else if (strncmp(args[0], "del-acl", 7) == 0) {
8480 /* http-request del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8481 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8482 /*
8483 * '+ 8' for 'del-acl('
8484 * '- 9' for 'del-acl(' + trailing ')'
8485 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8486 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8487
8488 cur_arg = 1;
8489
8490 if (!*args[cur_arg] ||
8491 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8492 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8493 file, linenum, args[0]);
8494 goto out_err;
8495 }
8496
8497 LIST_INIT(&rule->arg.map.key);
8498 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8499 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8500 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]8501 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8502 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8503 file, linenum, args[0], error);
8504 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8505 goto out_err;
8506 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8507 free(proxy->conf.lfs_file);
8508 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8509 proxy->conf.lfs_line = proxy->conf.args.line;
8510 cur_arg += 1;
8511 } else if (strncmp(args[0], "del-map", 7) == 0) {
8512 /* http-request del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8513 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8514 /*
8515 * '+ 8' for 'del-map('
8516 * '- 9' for 'del-map(' + trailing ')'
8517 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8518 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8519
8520 cur_arg = 1;
8521
8522 if (!*args[cur_arg] ||
8523 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8524 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8525 file, linenum, args[0]);
8526 goto out_err;
8527 }
8528
8529 LIST_INIT(&rule->arg.map.key);
8530 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8531 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8532 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]8533 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8534 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8535 file, linenum, args[0], error);
8536 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8537 goto out_err;
8538 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8539 free(proxy->conf.lfs_file);
8540 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8541 proxy->conf.lfs_line = proxy->conf.args.line;
8542 cur_arg += 1;
8543 } else if (strncmp(args[0], "set-map", 7) == 0) {
8544 /* http-request set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8545 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8546 /*
8547 * '+ 8' for 'set-map('
8548 * '- 9' for 'set-map(' + trailing ')'
8549 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8550 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8551
8552 cur_arg = 1;
8553
8554 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8555 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
8556 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8557 file, linenum, args[0]);
8558 goto out_err;
8559 }
8560
8561 LIST_INIT(&rule->arg.map.key);
8562 LIST_INIT(&rule->arg.map.value);
8563 proxy->conf.args.ctx = ARGC_HRQ;
8564
8565 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8566 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8567 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]8568 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8569 Alert("parsing [%s:%d]: 'http-request %s' key: %s.\n",
8570 file, linenum, args[0], error);
8571 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8572 goto out_err;
8573 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8574
8575 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8576 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8577 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]8578 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8579 Alert("parsing [%s:%d]: 'http-request %s' pattern: %s.\n",
8580 file, linenum, args[0], error);
8581 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8582 goto out_err;
8583 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8584 free(proxy->conf.lfs_file);
8585 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8586 proxy->conf.lfs_line = proxy->conf.args.line;
8587
8588 cur_arg += 2;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8589 } else if (((custom = action_http_req_custom(args[0])) != NULL)) {
8590 char *errmsg = NULL;
8591 cur_arg = 1;
8592 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]8593 rule->from = ACT_F_HTTP_REQ;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]8594 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]8595 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8596 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8597 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
8598 free(errmsg);
8599 goto out_err;
8600 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8601 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]8602 action_build_list(&http_req_keywords.list, &trash);
8603 Alert("parsing [%s:%d]: 'http-request' expects 'allow', 'deny', 'auth', 'redirect', "
8604 "'tarpit', 'add-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]8605 "'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]8606 "%s%s, but got '%s'%s.\n",
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]8607 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8608 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8609 }
8610
8611 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
8612 struct acl_cond *cond;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]8613 char *errmsg = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8614
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]8615 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]8616 Alert("parsing [%s:%d] : error detected while parsing an 'http-request %s' condition : %s.\n",
8617 file, linenum, args[0], errmsg);
8618 free(errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8619 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8620 }
8621 rule->cond = cond;
8622 }
8623 else if (*args[cur_arg]) {
8624 Alert("parsing [%s:%d]: 'http-request %s' expects 'realm' for 'auth' or"
8625 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
8626 file, linenum, args[0], args[cur_arg]);
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
8630 return rule;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8631 out_err:
8632 free(rule);
8633 return NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8634}
8635
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8636/* parse an "http-respose" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8637struct 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]8638{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8639 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8640 struct action_kw *custom = NULL;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8641 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8642 char *error;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8643
8644 rule = calloc(1, sizeof(*rule));
8645 if (!rule) {
8646 Alert("parsing [%s:%d]: out of memory.\n", file, linenum);
8647 goto out_err;
8648 }
8649
8650 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8651 rule->action = ACT_ACTION_ALLOW;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8652 cur_arg = 1;
8653 } else if (!strcmp(args[0], "deny")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8654 rule->action = ACT_ACTION_DENY;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8655 cur_arg = 1;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8656 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8657 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8658 cur_arg = 1;
8659
8660 if (!*args[cur_arg] ||
8661 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8662 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer value).\n",
8663 file, linenum, args[0]);
8664 goto out_err;
8665 }
8666 rule->arg.nice = atoi(args[cur_arg]);
8667 if (rule->arg.nice < -1024)
8668 rule->arg.nice = -1024;
8669 else if (rule->arg.nice > 1024)
8670 rule->arg.nice = 1024;
8671 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8672 } else if (!strcmp(args[0], "set-tos")) {
8673#ifdef IP_TOS
8674 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8675 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8676 cur_arg = 1;
8677
8678 if (!*args[cur_arg] ||
8679 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8680 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8681 file, linenum, args[0]);
8682 goto out_err;
8683 }
8684
8685 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8686 if (err && *err != '\0') {
8687 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8688 file, linenum, err, args[0]);
8689 goto out_err;
8690 }
8691 cur_arg++;
8692#else
8693 Alert("parsing [%s:%d]: 'http-response %s' is not supported on this platform (IP_TOS undefined).\n", file, linenum, args[0]);
8694 goto out_err;
8695#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8696 } else if (!strcmp(args[0], "set-mark")) {
8697#ifdef SO_MARK
8698 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8699 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8700 cur_arg = 1;
8701
8702 if (!*args[cur_arg] ||
8703 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8704 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8705 file, linenum, args[0]);
8706 goto out_err;
8707 }
8708
8709 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8710 if (err && *err != '\0') {
8711 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8712 file, linenum, err, args[0]);
8713 goto out_err;
8714 }
8715 cur_arg++;
8716 global.last_checks |= LSTCHK_NETADM;
8717#else
8718 Alert("parsing [%s:%d]: 'http-response %s' is not supported on this platform (SO_MARK undefined).\n", file, linenum, args[0]);
8719 goto out_err;
8720#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8721 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8722 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8723 cur_arg = 1;
8724
8725 if (!*args[cur_arg] ||
8726 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8727 bad_log_level:
8728 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (log level name or 'silent').\n",
8729 file, linenum, args[0]);
8730 goto out_err;
8731 }
8732 if (strcmp(args[cur_arg], "silent") == 0)
8733 rule->arg.loglevel = -1;
Ruoshan Huangdd016782016-06-15 22:16:03 +0800[diff] [blame]8734 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8735 goto bad_log_level;
8736 cur_arg++;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8737 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8738 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8739 cur_arg = 1;
8740
8741 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8742 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
8743 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
8744 file, linenum, args[0]);
8745 goto out_err;
8746 }
8747
8748 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8749 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8750 LIST_INIT(&rule->arg.hdr_add.fmt);
8751
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8752 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8753 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8754 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]8755 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8756 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8757 file, linenum, args[0], error);
8758 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8759 goto out_err;
8760 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8761 free(proxy->conf.lfs_file);
8762 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8763 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8764 cur_arg += 2;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8765 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8766 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8767 cur_arg = 1;
8768
8769 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann12cb00b2014-08-08 17:29:06 +0200[diff] [blame]8770 (*args[cur_arg+3] && strcmp(args[cur_arg+3], "if") != 0 && strcmp(args[cur_arg+3], "unless") != 0)) {
8771 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 3 arguments.\n",
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8772 file, linenum, args[0]);
8773 goto out_err;
8774 }
8775
8776 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8777 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8778 LIST_INIT(&rule->arg.hdr_add.fmt);
8779
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8780 error = NULL;
8781 if (!regex_comp(args[cur_arg + 1], &rule->arg.hdr_add.re, 1, 1, &error)) {
8782 Alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8783 args[cur_arg + 1], error);
8784 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8785 goto out_err;
8786 }
8787
8788 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8789 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8790 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]8791 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8792 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8793 file, linenum, args[0], error);
8794 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8795 goto out_err;
8796 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8797
8798 free(proxy->conf.lfs_file);
8799 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8800 proxy->conf.lfs_line = proxy->conf.args.line;
8801 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8802 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8803 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8804 cur_arg = 1;
8805
8806 if (!*args[cur_arg] ||
8807 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8808 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8809 file, linenum, args[0]);
8810 goto out_err;
8811 }
8812
8813 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8814 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8815
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8816 proxy->conf.args.ctx = ARGC_HRS;
8817 free(proxy->conf.lfs_file);
8818 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8819 proxy->conf.lfs_line = proxy->conf.args.line;
8820 cur_arg += 1;
8821 } else if (strncmp(args[0], "add-acl", 7) == 0) {
8822 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8823 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8824 /*
8825 * '+ 8' for 'add-acl('
8826 * '- 9' for 'add-acl(' + trailing ')'
8827 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8828 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8829
8830 cur_arg = 1;
8831
8832 if (!*args[cur_arg] ||
8833 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8834 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8835 file, linenum, args[0]);
8836 goto out_err;
8837 }
8838
8839 LIST_INIT(&rule->arg.map.key);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8840 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8841 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8842 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]8843 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8844 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8845 file, linenum, args[0], error);
8846 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8847 goto out_err;
8848 }
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8849 free(proxy->conf.lfs_file);
8850 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8851 proxy->conf.lfs_line = proxy->conf.args.line;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8852
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8853 cur_arg += 1;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8854 } else if (strncmp(args[0], "del-acl", 7) == 0) {
8855 /* http-response del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8856 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8857 /*
8858 * '+ 8' for 'del-acl('
8859 * '- 9' for 'del-acl(' + trailing ')'
8860 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8861 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8862
8863 cur_arg = 1;
8864
8865 if (!*args[cur_arg] ||
8866 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8867 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8868 file, linenum, args[0]);
8869 goto out_err;
8870 }
8871
8872 LIST_INIT(&rule->arg.map.key);
8873 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8874 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8875 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8876 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8877 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8878 file, linenum, args[0], error);
8879 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8880 goto out_err;
8881 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8882 free(proxy->conf.lfs_file);
8883 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8884 proxy->conf.lfs_line = proxy->conf.args.line;
8885 cur_arg += 1;
8886 } else if (strncmp(args[0], "del-map", 7) == 0) {
8887 /* http-response del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8888 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8889 /*
8890 * '+ 8' for 'del-map('
8891 * '- 9' for 'del-map(' + trailing ')'
8892 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8893 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8894
8895 cur_arg = 1;
8896
8897 if (!*args[cur_arg] ||
8898 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8899 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8900 file, linenum, args[0]);
8901 goto out_err;
8902 }
8903
8904 LIST_INIT(&rule->arg.map.key);
8905 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8906 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8907 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]8908 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8909 Alert("parsing [%s:%d]: 'http-response %s' %s.\n",
8910 file, linenum, args[0], error);
8911 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8912 goto out_err;
8913 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8914 free(proxy->conf.lfs_file);
8915 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8916 proxy->conf.lfs_line = proxy->conf.args.line;
8917 cur_arg += 1;
8918 } else if (strncmp(args[0], "set-map", 7) == 0) {
8919 /* http-response set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8920 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8921 /*
8922 * '+ 8' for 'set-map('
8923 * '- 9' for 'set-map(' + trailing ')'
8924 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8925 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8926
8927 cur_arg = 1;
8928
8929 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8930 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
8931 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
8932 file, linenum, args[0]);
8933 goto out_err;
8934 }
8935
8936 LIST_INIT(&rule->arg.map.key);
8937 LIST_INIT(&rule->arg.map.value);
8938
8939 proxy->conf.args.ctx = ARGC_HRS;
8940
8941 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8942 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8943 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]8944 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8945 Alert("parsing [%s:%d]: 'http-response %s' name: %s.\n",
8946 file, linenum, args[0], error);
8947 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8948 goto out_err;
8949 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8950
8951 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8952 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8953 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]8954 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8955 Alert("parsing [%s:%d]: 'http-response %s' value: %s.\n",
8956 file, linenum, args[0], error);
8957 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8958 goto out_err;
8959 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8960
8961 free(proxy->conf.lfs_file);
8962 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8963 proxy->conf.lfs_line = proxy->conf.args.line;
8964
8965 cur_arg += 2;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]8966 } else if (strcmp(args[0], "redirect") == 0) {
8967 struct redirect_rule *redir;
8968 char *errmsg = NULL;
8969
8970 if ((redir = http_parse_redirect_rule(file, linenum, proxy, (const char **)args + 1, &errmsg, 1, 1)) == NULL) {
8971 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
8972 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
8973 goto out_err;
8974 }
8975
8976 /* this redirect rule might already contain a parsed condition which
8977 * we'll pass to the http-request rule.
8978 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8979 rule->action = ACT_HTTP_REDIR;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]8980 rule->arg.redir = redir;
8981 rule->cond = redir->cond;
8982 redir->cond = NULL;
8983 cur_arg = 2;
8984 return rule;
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]8985 } else if (strncmp(args[0], "track-sc", 8) == 0 &&
8986 args[0][9] == '\0' && args[0][8] >= '0' &&
8987 args[0][8] < '0' + MAX_SESS_STKCTR) { /* track-sc 0..9 */
8988 struct sample_expr *expr;
8989 unsigned int where;
8990 char *err = NULL;
8991
8992 cur_arg = 1;
8993 proxy->conf.args.ctx = ARGC_TRK;
8994
8995 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
8996 if (!expr) {
8997 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
8998 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
8999 free(err);
9000 goto out_err;
9001 }
9002
9003 where = 0;
9004 if (proxy->cap & PR_CAP_FE)
9005 where |= SMP_VAL_FE_HRS_HDR;
9006 if (proxy->cap & PR_CAP_BE)
9007 where |= SMP_VAL_BE_HRS_HDR;
9008
9009 if (!(expr->fetch->val & where)) {
9010 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule :"
9011 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
9012 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
9013 args[cur_arg-1], sample_src_names(expr->fetch->use));
9014 free(expr);
9015 goto out_err;
9016 }
9017
9018 if (strcmp(args[cur_arg], "table") == 0) {
9019 cur_arg++;
9020 if (!args[cur_arg]) {
9021 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : missing table name.\n",
9022 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
9023 free(expr);
9024 goto out_err;
9025 }
9026 /* we copy the table name for now, it will be resolved later */
9027 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
9028 cur_arg++;
9029 }
9030 rule->arg.trk_ctr.expr = expr;
9031 rule->action = ACT_ACTION_TRK_SC0 + args[0][8] - '0';
Christopher Faulet78880fb2017-09-18 14:43:55 +0200[diff] [blame]9032 rule->check_ptr = check_trk_action;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9033 } else if (((custom = action_http_res_custom(args[0])) != NULL)) {
9034 char *errmsg = NULL;
9035 cur_arg = 1;
9036 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]9037 rule->from = ACT_F_HTTP_RES;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]9038 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]9039 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9040 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9041 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
9042 free(errmsg);
9043 goto out_err;
9044 }
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9045 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9046 action_build_list(&http_res_keywords.list, &trash);
9047 Alert("parsing [%s:%d]: 'http-response' expects 'allow', 'deny', 'redirect', "
9048 "'add-header', 'del-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9049 "'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]9050 "%s%s, but got '%s'%s.\n",
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9051 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9052 goto out_err;
9053 }
9054
9055 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
9056 struct acl_cond *cond;
9057 char *errmsg = NULL;
9058
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]9059 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]9060 Alert("parsing [%s:%d] : error detected while parsing an 'http-response %s' condition : %s.\n",
9061 file, linenum, args[0], errmsg);
9062 free(errmsg);
9063 goto out_err;
9064 }
9065 rule->cond = cond;
9066 }
9067 else if (*args[cur_arg]) {
9068 Alert("parsing [%s:%d]: 'http-response %s' expects"
9069 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
9070 file, linenum, args[0], args[cur_arg]);
9071 goto out_err;
9072 }
9073
9074 return rule;
9075 out_err:
9076 free(rule);
9077 return NULL;
9078}
9079
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9080/* Parses a redirect rule. Returns the redirect rule on success or NULL on error,
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9081 * 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]9082 * dynamic log-format rule instead of a static string. Parameter <dir> indicates
9083 * the direction of the rule, and equals 0 for request, non-zero for responses.
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9084 */
9085struct redirect_rule *http_parse_redirect_rule(const char *file, int linenum, struct proxy *curproxy,
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9086 const char **args, char **errmsg, int use_fmt, int dir)
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9087{
9088 struct redirect_rule *rule;
9089 int cur_arg;
9090 int type = REDIRECT_TYPE_NONE;
9091 int code = 302;
9092 const char *destination = NULL;
9093 const char *cookie = NULL;
9094 int cookie_set = 0;
9095 unsigned int flags = REDIRECT_FLAG_NONE;
9096 struct acl_cond *cond = NULL;
9097
9098 cur_arg = 0;
9099 while (*(args[cur_arg])) {
9100 if (strcmp(args[cur_arg], "location") == 0) {
9101 if (!*args[cur_arg + 1])
9102 goto missing_arg;
9103
9104 type = REDIRECT_TYPE_LOCATION;
9105 cur_arg++;
9106 destination = args[cur_arg];
9107 }
9108 else if (strcmp(args[cur_arg], "prefix") == 0) {
9109 if (!*args[cur_arg + 1])
9110 goto missing_arg;
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9111 type = REDIRECT_TYPE_PREFIX;
9112 cur_arg++;
9113 destination = args[cur_arg];
9114 }
9115 else if (strcmp(args[cur_arg], "scheme") == 0) {
9116 if (!*args[cur_arg + 1])
9117 goto missing_arg;
9118
9119 type = REDIRECT_TYPE_SCHEME;
9120 cur_arg++;
9121 destination = args[cur_arg];
9122 }
9123 else if (strcmp(args[cur_arg], "set-cookie") == 0) {
9124 if (!*args[cur_arg + 1])
9125 goto missing_arg;
9126
9127 cur_arg++;
9128 cookie = args[cur_arg];
9129 cookie_set = 1;
9130 }
9131 else if (strcmp(args[cur_arg], "clear-cookie") == 0) {
9132 if (!*args[cur_arg + 1])
9133 goto missing_arg;
9134
9135 cur_arg++;
9136 cookie = args[cur_arg];
9137 cookie_set = 0;
9138 }
9139 else if (strcmp(args[cur_arg], "code") == 0) {
9140 if (!*args[cur_arg + 1])
9141 goto missing_arg;
9142
9143 cur_arg++;
9144 code = atol(args[cur_arg]);
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9145 if (code < 301 || code > 308 || (code > 303 && code < 307)) {
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9146 memprintf(errmsg,
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9147 "'%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]9148 args[cur_arg - 1], args[cur_arg]);
9149 return NULL;
9150 }
9151 }
9152 else if (!strcmp(args[cur_arg],"drop-query")) {
9153 flags |= REDIRECT_FLAG_DROP_QS;
9154 }
9155 else if (!strcmp(args[cur_arg],"append-slash")) {
9156 flags |= REDIRECT_FLAG_APPEND_SLASH;
9157 }
9158 else if (strcmp(args[cur_arg], "if") == 0 ||
9159 strcmp(args[cur_arg], "unless") == 0) {
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]9160 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]9161 if (!cond) {
9162 memprintf(errmsg, "error in condition: %s", *errmsg);
9163 return NULL;
9164 }
9165 break;
9166 }
9167 else {
9168 memprintf(errmsg,
9169 "expects 'code', 'prefix', 'location', 'scheme', 'set-cookie', 'clear-cookie', 'drop-query' or 'append-slash' (was '%s')",
9170 args[cur_arg]);
9171 return NULL;
9172 }
9173 cur_arg++;
9174 }
9175
9176 if (type == REDIRECT_TYPE_NONE) {
9177 memprintf(errmsg, "redirection type expected ('prefix', 'location', or 'scheme')");
9178 return NULL;
9179 }
9180
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9181 if (dir && type != REDIRECT_TYPE_LOCATION) {
9182 memprintf(errmsg, "response only supports redirect type 'location'");
9183 return NULL;
9184 }
9185
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]9186 rule = calloc(1, sizeof(*rule));
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9187 rule->cond = cond;
Willy Tarreau60e08382013-12-03 00:48:45 +0100[diff] [blame]9188 LIST_INIT(&rule->rdr_fmt);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9189
9190 if (!use_fmt) {
9191 /* old-style static redirect rule */
9192 rule->rdr_str = strdup(destination);
9193 rule->rdr_len = strlen(destination);
9194 }
9195 else {
9196 /* log-format based redirect rule */
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9197
9198 /* Parse destination. Note that in the REDIRECT_TYPE_PREFIX case,
9199 * if prefix == "/", we don't want to add anything, otherwise it
9200 * makes it hard for the user to configure a self-redirection.
9201 */
Godbachd9722032014-12-18 15:44:58 +0800[diff] [blame]9202 curproxy->conf.args.ctx = ARGC_RDR;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9203 if (!(type == REDIRECT_TYPE_PREFIX && destination[0] == '/' && destination[1] == '\0')) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9204 if (!parse_logformat_string(destination, curproxy, &rule->rdr_fmt, LOG_OPT_HTTP,
9205 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]9206 : (curproxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9207 errmsg)) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9208 return NULL;
9209 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9210 free(curproxy->conf.lfs_file);
9211 curproxy->conf.lfs_file = strdup(curproxy->conf.args.file);
9212 curproxy->conf.lfs_line = curproxy->conf.args.line;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9213 }
9214 }
9215
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9216 if (cookie) {
9217 /* depending on cookie_set, either we want to set the cookie, or to clear it.
9218 * a clear consists in appending "; path=/; Max-Age=0;" at the end.
9219 */
9220 rule->cookie_len = strlen(cookie);
9221 if (cookie_set) {
9222 rule->cookie_str = malloc(rule->cookie_len + 10);
9223 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9224 memcpy(rule->cookie_str + rule->cookie_len, "; path=/;", 10);
9225 rule->cookie_len += 9;
9226 } else {
9227 rule->cookie_str = malloc(rule->cookie_len + 21);
9228 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9229 memcpy(rule->cookie_str + rule->cookie_len, "; path=/; Max-Age=0;", 21);
9230 rule->cookie_len += 20;
9231 }
9232 }
9233 rule->type = type;
9234 rule->code = code;
9235 rule->flags = flags;
9236 LIST_INIT(&rule->list);
9237 return rule;
9238
9239 missing_arg:
9240 memprintf(errmsg, "missing argument for '%s'", args[cur_arg]);
9241 return NULL;
9242}
9243
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9244/************************************************************************/
9245/* The code below is dedicated to ACL parsing and matching */
9246/************************************************************************/
9247
9248
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9249/* This function ensures that the prerequisites for an L7 fetch are ready,
9250 * which means that a request or response is ready. If some data is missing,
9251 * 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]9252 * to extract data from L7. If <req_vol> is non-null during a request prefetch,
9253 * another test is made to ensure the required information is not gone.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9254 *
9255 * The function returns :
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9256 * 0 with SMP_F_MAY_CHANGE in the sample flags if some data is missing to
9257 * decide whether or not an HTTP message is present ;
9258 * 0 if the requested data cannot be fetched or if it is certain that
9259 * we'll never have any HTTP message there ;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9260 * 1 if an HTTP message is ready
9261 */
James Rosewell91a41cb2015-09-18 17:11:16 +0100[diff] [blame]9262int smp_prefetch_http(struct proxy *px, struct stream *s, unsigned int opt,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9263 const struct arg *args, struct sample *smp, int req_vol)
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9264{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9265 struct http_txn *txn;
9266 struct http_msg *msg;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9267
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9268 /* Note: it is possible that <s> is NULL when called before stream
9269 * initialization (eg: tcp-request connection), so this function is the
9270 * one responsible for guarding against this case for all HTTP users.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9271 */
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9272 if (!s)
9273 return 0;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9274
Thierry FOURNIERed08d6a2015-09-24 08:40:18 +0200[diff] [blame]9275 if (!s->txn) {
9276 if (unlikely(!http_alloc_txn(s)))
9277 return 0; /* not enough memory */
9278 http_init_txn(s);
9279 }
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9280 txn = s->txn;
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9281 msg = &txn->req;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9282
9283 /* Check for a dependency on a request */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9284 smp->data.type = SMP_T_BOOL;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9285
Willy Tarreau32a6f2e2012-04-25 10:13:36 +0200[diff] [blame]9286 if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9287 /* If the buffer does not leave enough free space at the end,
9288 * we must first realign it.
9289 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9290 if (s->req.buf->p > s->req.buf->data &&
9291 s->req.buf->i + s->req.buf->p > s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)
9292 buffer_slow_realign(s->req.buf);
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9293
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9294 if (unlikely(txn->req.msg_state < HTTP_MSG_BODY)) {
Willy Tarreau472b1ee2013-10-14 22:41:30 +0200[diff] [blame]9295 if (msg->msg_state == HTTP_MSG_ERROR)
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9296 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9297
9298 /* Try to decode HTTP request */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9299 if (likely(msg->next < s->req.buf->i))
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9300 http_msg_analyzer(msg, &txn->hdr_idx);
9301
9302 /* Still no valid request ? */
9303 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau3bf1b2b2012-08-27 20:46:07 +0200[diff] [blame]9304 if ((msg->msg_state == HTTP_MSG_ERROR) ||
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9305 buffer_full(s->req.buf, global.tune.maxrewrite)) {
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9306 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9307 }
9308 /* wait for final state */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9309 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9310 return 0;
9311 }
9312
9313 /* OK we just got a valid HTTP request. We have some minor
9314 * preparation to perform so that further checks can rely
9315 * on HTTP tests.
9316 */
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9317
9318 /* If the request was parsed but was too large, we must absolutely
9319 * return an error so that it is not processed. At the moment this
9320 * cannot happen, but if the parsers are to change in the future,
9321 * we want this check to be maintained.
9322 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9323 if (unlikely(s->req.buf->i + s->req.buf->p >
9324 s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]9325 msg->err_state = msg->msg_state;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9326 msg->msg_state = HTTP_MSG_ERROR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9327 smp->data.u.sint = 1;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9328 return 1;
9329 }
9330
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9331 txn->meth = find_http_meth(msg->chn->buf->p, msg->sl.rq.m_l);
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9332 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]9333 s->flags |= SF_REDIRECTABLE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9334
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9335 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
9336 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9337 }
9338
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9339 if (req_vol && txn->rsp.msg_state != HTTP_MSG_RPBEFORE) {
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9340 return 0; /* data might have moved and indexes changed */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9341 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9342
9343 /* otherwise everything's ready for the request */
9344 }
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9345 else {
9346 /* Check for a dependency on a response */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9347 if (txn->rsp.msg_state < HTTP_MSG_BODY) {
9348 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9349 return 0;
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9350 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9351 }
9352
9353 /* everything's OK */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9354 smp->data.u.sint = 1;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9355 return 1;
9356}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9357
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9358/* 1. Check on METHOD
9359 * We use the pre-parsed method if it is known, and store its number as an
9360 * integer. If it is unknown, we use the pointer and the length.
9361 */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9362static int pat_parse_meth(const char *text, struct pattern *pattern, int mflags, char **err)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9363{
9364 int len, meth;
9365
Thierry FOURNIER580c32c2014-01-24 10:58:12 +0100[diff] [blame]9366 len = strlen(text);
9367 meth = find_http_meth(text, len);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9368
9369 pattern->val.i = meth;
9370 if (meth == HTTP_METH_OTHER) {
Willy Tarreau912c1192014-08-29 15:15:50 +0200[diff] [blame]9371 pattern->ptr.str = (char *)text;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9372 pattern->len = len;
9373 }
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9374 else {
9375 pattern->ptr.str = NULL;
9376 pattern->len = 0;
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9377 }
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9378 return 1;
9379}
9380
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9381/* This function fetches the method of current HTTP request and stores
9382 * it in the global pattern struct as a chunk. There are two possibilities :
9383 * - if the method is known (not HTTP_METH_OTHER), its identifier is stored
9384 * in <len> and <ptr> is NULL ;
9385 * - if the method is unknown (HTTP_METH_OTHER), <ptr> points to the text and
9386 * <len> to its length.
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]9387 * This is intended to be used with pat_match_meth() only.
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9388 */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9389static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9390smp_fetch_meth(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9391{
9392 int meth;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9393 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9394
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9395 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9396
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9397 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9398 meth = txn->meth;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9399 smp->data.type = SMP_T_METH;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9400 smp->data.u.meth.meth = meth;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9401 if (meth == HTTP_METH_OTHER) {
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9402 if (txn->rsp.msg_state != HTTP_MSG_RPBEFORE)
9403 /* ensure the indexes are not affected */
9404 return 0;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9405 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9406 smp->data.u.meth.str.len = txn->req.sl.rq.m_l;
9407 smp->data.u.meth.str.str = txn->req.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9408 }
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9409 smp->flags |= SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9410 return 1;
9411}
9412
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9413/* See above how the method is stored in the global pattern */
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9414static struct pattern *pat_match_meth(struct sample *smp, struct pattern_expr *expr, int fill)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9415{
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9416 int icase;
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9417 struct pattern_list *lst;
9418 struct pattern *pattern;
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9419
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9420 list_for_each_entry(lst, &expr->patterns, list) {
9421 pattern = &lst->pat;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9422
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9423 /* well-known method */
9424 if (pattern->val.i != HTTP_METH_OTHER) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9425 if (smp->data.u.meth.meth == pattern->val.i)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9426 return pattern;
9427 else
9428 continue;
9429 }
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9430
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9431 /* Other method, we must compare the strings */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9432 if (pattern->len != smp->data.u.meth.str.len)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9433 continue;
9434
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9435 icase = expr->mflags & PAT_MF_IGNORE_CASE;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9436 if ((icase && strncasecmp(pattern->ptr.str, smp->data.u.meth.str.str, smp->data.u.meth.str.len) == 0) ||
9437 (!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]9438 return pattern;
9439 }
9440 return NULL;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9441}
9442
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9443static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9444smp_fetch_rqver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9445{
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9446 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9447 char *ptr;
9448 int len;
9449
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9450 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9451
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9452 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9453 len = txn->req.sl.rq.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9454 ptr = txn->req.chn->buf->p + txn->req.sl.rq.v;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9455
9456 while ((len-- > 0) && (*ptr++ != '/'));
9457 if (len <= 0)
9458 return 0;
9459
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9460 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9461 smp->data.u.str.str = ptr;
9462 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9463
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9464 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9465 return 1;
9466}
9467
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9468static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9469smp_fetch_stver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9470{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9471 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9472 char *ptr;
9473 int len;
9474
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9475 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9476
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9477 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9478 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9479 return 0;
9480
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9481 len = txn->rsp.sl.st.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9482 ptr = txn->rsp.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9483
9484 while ((len-- > 0) && (*ptr++ != '/'));
9485 if (len <= 0)
9486 return 0;
9487
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9488 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9489 smp->data.u.str.str = ptr;
9490 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9491
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9492 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9493 return 1;
9494}
9495
9496/* 3. Check on Status Code. We manipulate integers here. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9497static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9498smp_fetch_stcode(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9499{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9500 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9501 char *ptr;
9502 int len;
9503
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9504 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9505
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9506 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9507 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9508 return 0;
9509
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9510 len = txn->rsp.sl.st.c_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9511 ptr = txn->rsp.chn->buf->p + txn->rsp.sl.st.c;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9512
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9513 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9514 smp->data.u.sint = __strl2ui(ptr, len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9515 smp->flags = SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9516 return 1;
9517}
9518
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9519static int
9520smp_fetch_uniqueid(const struct arg *args, struct sample *smp, const char *kw, void *private)
9521{
9522 if (LIST_ISEMPTY(&smp->sess->fe->format_unique_id))
9523 return 0;
9524
9525 if (!smp->strm->unique_id) {
9526 if ((smp->strm->unique_id = pool_alloc2(pool2_uniqueid)) == NULL)
9527 return 0;
9528 smp->strm->unique_id[0] = '\0';
9529 }
9530 smp->data.u.str.len = build_logline(smp->strm, smp->strm->unique_id,
9531 UNIQUEID_LEN, &smp->sess->fe->format_unique_id);
9532
9533 smp->data.type = SMP_T_STR;
9534 smp->data.u.str.str = smp->strm->unique_id;
9535 smp->flags = SMP_F_CONST;
9536 return 1;
9537}
9538
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]9539/* Returns a string block containing all headers including the
9540 * empty line wich separes headers from the body. This is useful
9541 * form some headers analysis.
9542 */
9543static int
9544smp_fetch_hdrs(const struct arg *args, struct sample *smp, const char *kw, void *private)
9545{
9546 struct http_msg *msg;
9547 struct hdr_idx *idx;
9548 struct http_txn *txn;
9549
9550 CHECK_HTTP_MESSAGE_FIRST();
9551
9552 txn = smp->strm->txn;
9553 idx = &txn->hdr_idx;
9554 msg = &txn->req;
9555
9556 smp->data.type = SMP_T_STR;
9557 smp->data.u.str.str = msg->chn->buf->p + hdr_idx_first_pos(idx);
9558 smp->data.u.str.len = msg->eoh - hdr_idx_first_pos(idx) + 1 +
9559 (msg->chn->buf->p[msg->eoh] == '\r');
9560
9561 return 1;
9562}
9563
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9564/* Returns the header request in a length/value encoded format.
9565 * This is useful for exchanges with the SPOE.
9566 *
9567 * A "length value" is a multibyte code encoding numbers. It uses the
9568 * SPOE format. The encoding is the following:
9569 *
9570 * Each couple "header name" / "header value" is composed
9571 * like this:
9572 * "length value" "header name bytes"
9573 * "length value" "header value bytes"
9574 * When the last header is reached, the header name and the header
9575 * value are empty. Their length are 0
9576 */
9577static int
9578smp_fetch_hdrs_bin(const struct arg *args, struct sample *smp, const char *kw, void *private)
9579{
9580 struct http_msg *msg;
9581 struct chunk *temp;
9582 struct hdr_idx *idx;
9583 const char *cur_ptr, *cur_next, *p;
9584 int old_idx, cur_idx;
9585 struct hdr_idx_elem *cur_hdr;
9586 const char *hn, *hv;
9587 int hnl, hvl;
9588 int ret;
9589 struct http_txn *txn;
9590 char *buf;
9591 char *end;
9592
9593 CHECK_HTTP_MESSAGE_FIRST();
9594
9595 temp = get_trash_chunk();
9596 buf = temp->str;
9597 end = temp->str + temp->size;
9598
9599 txn = smp->strm->txn;
9600 idx = &txn->hdr_idx;
9601 msg = &txn->req;
9602
9603 /* Build array of headers. */
9604 old_idx = 0;
9605 cur_next = msg->chn->buf->p + hdr_idx_first_pos(idx);
9606 while (1) {
9607 cur_idx = idx->v[old_idx].next;
9608 if (!cur_idx)
9609 break;
9610 old_idx = cur_idx;
9611
9612 cur_hdr = &idx->v[cur_idx];
9613 cur_ptr = cur_next;
9614 cur_next = cur_ptr + cur_hdr->len + cur_hdr->cr + 1;
9615
9616 /* Now we have one full header at cur_ptr of len cur_hdr->len,
9617 * and the next header starts at cur_next. We'll check
9618 * this header in the list as well as against the default
9619 * rule.
9620 */
9621
9622 /* look for ': *'. */
9623 hn = cur_ptr;
9624 for (p = cur_ptr; p < cur_ptr + cur_hdr->len && *p != ':'; p++);
9625 if (p >= cur_ptr+cur_hdr->len)
9626 continue;
9627 hnl = p - hn;
9628 p++;
9629 while (p < cur_ptr + cur_hdr->len && (*p == ' ' || *p == '\t'))
9630 p++;
9631 if (p >= cur_ptr + cur_hdr->len)
9632 continue;
9633 hv = p;
9634 hvl = cur_ptr + cur_hdr->len-p;
9635
9636 /* encode the header name. */
9637 ret = encode_varint(hnl, &buf, end);
9638 if (ret == -1)
9639 return 0;
9640 if (buf + hnl > end)
9641 return 0;
9642 memcpy(buf, hn, hnl);
9643 buf += hnl;
9644
9645 /* encode and copy the value. */
9646 ret = encode_varint(hvl, &buf, end);
9647 if (ret == -1)
9648 return 0;
9649 if (buf + hvl > end)
9650 return 0;
9651 memcpy(buf, hv, hvl);
9652 buf += hvl;
9653 }
9654
9655 /* encode the end of the header list with empty
9656 * header name and header value.
9657 */
9658 ret = encode_varint(0, &buf, end);
9659 if (ret == -1)
9660 return 0;
9661 ret = encode_varint(0, &buf, end);
9662 if (ret == -1)
9663 return 0;
9664
9665 /* Initialise sample data which will be filled. */
9666 smp->data.type = SMP_T_BIN;
9667 smp->data.u.str.str = temp->str;
9668 smp->data.u.str.len = buf - temp->str;
9669 smp->data.u.str.size = temp->size;
9670
9671 return 1;
9672}
9673
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9674/* returns the longest available part of the body. This requires that the body
9675 * has been waited for using http-buffer-request.
9676 */
9677static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9678smp_fetch_body(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9679{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9680 struct http_msg *msg;
9681 unsigned long len;
9682 unsigned long block1;
9683 char *body;
9684 struct chunk *temp;
9685
9686 CHECK_HTTP_MESSAGE_FIRST();
9687
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9688 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9689 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9690 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9691 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9692
9693 len = http_body_bytes(msg);
9694 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
9695
9696 block1 = len;
9697 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
9698 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
9699
9700 if (block1 == len) {
9701 /* buffer is not wrapped (or empty) */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9702 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9703 smp->data.u.str.str = body;
9704 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9705 smp->flags = SMP_F_VOL_TEST | SMP_F_CONST;
9706 }
9707 else {
9708 /* buffer is wrapped, we need to defragment it */
9709 temp = get_trash_chunk();
9710 memcpy(temp->str, body, block1);
9711 memcpy(temp->str + block1, msg->chn->buf->data, len - block1);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9712 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9713 smp->data.u.str.str = temp->str;
9714 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9715 smp->flags = SMP_F_VOL_TEST;
9716 }
9717 return 1;
9718}
9719
9720
9721/* returns the available length of the body. This requires that the body
9722 * has been waited for using http-buffer-request.
9723 */
9724static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9725smp_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]9726{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9727 struct http_msg *msg;
9728
9729 CHECK_HTTP_MESSAGE_FIRST();
9730
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9731 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9732 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9733 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9734 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9735
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9736 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9737 smp->data.u.sint = http_body_bytes(msg);
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9738
9739 smp->flags = SMP_F_VOL_TEST;
9740 return 1;
9741}
9742
9743
9744/* returns the advertised length of the body, or the advertised size of the
9745 * chunks available in the buffer. This requires that the body has been waited
9746 * for using http-buffer-request.
9747 */
9748static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9749smp_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]9750{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9751 struct http_msg *msg;
9752
9753 CHECK_HTTP_MESSAGE_FIRST();
9754
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9755 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9756 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9757 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9758 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9759
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9760 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9761 smp->data.u.sint = msg->body_len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9762
9763 smp->flags = SMP_F_VOL_TEST;
9764 return 1;
9765}
9766
9767
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9768/* 4. Check on URL/URI. A pointer to the URI is stored. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9769static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9770smp_fetch_url(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9771{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9772 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9773
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9774 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9775
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9776 txn = smp->strm->txn;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9777 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9778 smp->data.u.str.len = txn->req.sl.rq.u_l;
9779 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]9780 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9781 return 1;
9782}
9783
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9784static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9785smp_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]9786{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9787 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]9788 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9789
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9790 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9791
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9792 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]9793 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]9794 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
Willy Tarreauf4362b32011-12-16 17:49:52 +0100[diff] [blame]9795 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9796
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9797 smp->data.type = SMP_T_IPV4;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9798 smp->data.u.ipv4 = ((struct sockaddr_in *)&addr)->sin_addr;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9799 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9800 return 1;
9801}
9802
9803static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9804smp_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]9805{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9806 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]9807 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9808
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9809 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9810
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9811 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]9812 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]9813 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
9814 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9815
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9816 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9817 smp->data.u.sint = ntohs(((struct sockaddr_in *)&addr)->sin_port);
Willy Tarreau21e5b0e2012-04-23 19:25:44 +0200[diff] [blame]9818 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9819 return 1;
9820}
9821
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9822/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
9823 * Accepts an optional argument of type string containing the header field name,
9824 * and an optional argument of type signed or unsigned integer to request an
9825 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9826 * headers are considered from the first one. It does not stop on commas and
9827 * returns full lines instead (useful for User-Agent or Date for example).
9828 */
9829static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9830smp_fetch_fhdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9831{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9832 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9833 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9834 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9835 int occ = 0;
9836 const char *name_str = NULL;
9837 int name_len = 0;
9838
9839 if (!ctx) {
9840 /* first call */
9841 ctx = &static_hdr_ctx;
9842 ctx->idx = 0;
9843 smp->ctx.a[0] = ctx;
9844 }
9845
9846 if (args) {
9847 if (args[0].type != ARGT_STR)
9848 return 0;
9849 name_str = args[0].data.str.str;
9850 name_len = args[0].data.str.len;
9851
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]9852 if (args[1].type == ARGT_SINT)
9853 occ = args[1].data.sint;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9854 }
9855
9856 CHECK_HTTP_MESSAGE_FIRST();
9857
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9858 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9859 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]9860
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9861 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
9862 /* search for header from the beginning */
9863 ctx->idx = 0;
9864
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9865 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9866 /* no explicit occurrence and single fetch => last header by default */
9867 occ = -1;
9868
9869 if (!occ)
9870 /* prepare to report multiple occurrences for ACL fetches */
9871 smp->flags |= SMP_F_NOT_LAST;
9872
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9873 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9874 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9875 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]9876 return 1;
9877
9878 smp->flags &= ~SMP_F_NOT_LAST;
9879 return 0;
9880}
9881
9882/* 6. Check on HTTP header count. The number of occurrences is returned.
9883 * Accepts exactly 1 argument of type string. It does not stop on commas and
9884 * returns full lines instead (useful for User-Agent or Date for example).
9885 */
9886static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9887smp_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]9888{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9889 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9890 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9891 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9892 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]9893 const char *name = NULL;
9894 int len = 0;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9895
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]9896 if (args && args->type == ARGT_STR) {
9897 name = args->data.str.str;
9898 len = args->data.str.len;
9899 }
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9900
9901 CHECK_HTTP_MESSAGE_FIRST();
9902
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9903 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9904 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]9905
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9906 ctx.idx = 0;
9907 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]9908 while (http_find_full_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9909 cnt++;
9910
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9911 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9912 smp->data.u.sint = cnt;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9913 smp->flags = SMP_F_VOL_HDR;
9914 return 1;
9915}
9916
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9917static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9918smp_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]9919{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9920 struct hdr_idx *idx;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9921 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9922 const struct http_msg *msg;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9923 struct chunk *temp;
9924 char del = ',';
9925
9926 if (args && args->type == ARGT_STR)
9927 del = *args[0].data.str.str;
9928
9929 CHECK_HTTP_MESSAGE_FIRST();
9930
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9931 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9932 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]9933
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9934 temp = get_trash_chunk();
9935
9936 ctx.idx = 0;
9937 while (http_find_next_header(msg->chn->buf->p, idx, &ctx)) {
9938 if (temp->len)
9939 temp->str[temp->len++] = del;
9940 memcpy(temp->str + temp->len, ctx.line, ctx.del);
9941 temp->len += ctx.del;
9942 }
9943
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9944 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9945 smp->data.u.str.str = temp->str;
9946 smp->data.u.str.len = temp->len;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9947 smp->flags = SMP_F_VOL_HDR;
9948 return 1;
9949}
9950
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9951/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
9952 * Accepts an optional argument of type string containing the header field name,
9953 * and an optional argument of type signed or unsigned integer to request an
9954 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9955 * headers are considered from the first one.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9956 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9957static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9958smp_fetch_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9959{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9960 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]9961 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9962 const struct http_msg *msg;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9963 int occ = 0;
9964 const char *name_str = NULL;
9965 int name_len = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]9966
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]9967 if (!ctx) {
9968 /* first call */
9969 ctx = &static_hdr_ctx;
9970 ctx->idx = 0;
Willy Tarreauffb6f082013-04-02 23:16:53 +0200[diff] [blame]9971 smp->ctx.a[0] = ctx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]9972 }
9973
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9974 if (args) {
9975 if (args[0].type != ARGT_STR)
9976 return 0;
9977 name_str = args[0].data.str.str;
9978 name_len = args[0].data.str.len;
9979
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]9980 if (args[1].type == ARGT_SINT)
9981 occ = args[1].data.sint;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9982 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]9983
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]9984 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9985
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9986 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9987 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]9988
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9989 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9990 /* search for header from the beginning */
9991 ctx->idx = 0;
9992
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9993 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9994 /* no explicit occurrence and single fetch => last header by default */
9995 occ = -1;
9996
9997 if (!occ)
9998 /* prepare to report multiple occurrences for ACL fetches */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9999 smp->flags |= SMP_F_NOT_LAST;
Willy Tarreau664092c2011-12-16 19:11:42 +0100[diff] [blame]10000
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10001 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10002 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10003 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]10004 return 1;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10005
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10006 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10007 return 0;
10008}
10009
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10010/* 6. Check on HTTP header count. The number of occurrences is returned.
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10011 * Accepts exactly 1 argument of type string.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10012 */
10013static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10014smp_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]10015{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10016 struct hdr_idx *idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10017 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10018 const struct http_msg *msg;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10019 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10020 const char *name = NULL;
10021 int len = 0;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10022
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10023 if (args && args->type == ARGT_STR) {
10024 name = args->data.str.str;
10025 len = args->data.str.len;
10026 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10027
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10028 CHECK_HTTP_MESSAGE_FIRST();
10029
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10030 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10031 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]10032
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10033 ctx.idx = 0;
10034 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10035 while (http_find_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10036 cnt++;
10037
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10038 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10039 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10040 smp->flags = SMP_F_VOL_HDR;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10041 return 1;
10042}
10043
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10044/* Fetch an HTTP header's integer value. The integer value is returned. It
10045 * takes a mandatory argument of type string and an optional one of type int
10046 * to designate a specific occurrence. It returns an unsigned integer, which
10047 * may or may not be appropriate for everything.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10048 */
10049static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10050smp_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]10051{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10052 int ret = smp_fetch_hdr(args, smp, kw, private);
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10053
Willy Tarreauf853c462012-04-23 18:53:56 +0200[diff] [blame]10054 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10055 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10056 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]10057 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10058
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10059 return ret;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10060}
10061
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10062/* Fetch an HTTP header's IP value. takes a mandatory argument of type string
10063 * and an optional one of type int to designate a specific occurrence.
10064 * It returns an IPv4 or IPv6 address.
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10065 */
10066static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10067smp_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]10068{
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10069 int ret;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10070
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10071 while ((ret = smp_fetch_hdr(args, smp, kw, private)) > 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10072 if (url2ipv4((char *)smp->data.u.str.str, &smp->data.u.ipv4)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10073 smp->data.type = SMP_T_IPV4;
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10074 break;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10075 } else {
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10076 struct chunk *temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10077 if (smp->data.u.str.len < temp->size - 1) {
10078 memcpy(temp->str, smp->data.u.str.str, smp->data.u.str.len);
10079 temp->str[smp->data.u.str.len] = '\0';
10080 if (inet_pton(AF_INET6, temp->str, &smp->data.u.ipv6)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10081 smp->data.type = SMP_T_IPV6;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10082 break;
10083 }
10084 }
10085 }
10086
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10087 /* if the header doesn't match an IP address, fetch next one */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10088 if (!(smp->flags & SMP_F_NOT_LAST))
10089 return 0;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10090 }
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10091 return ret;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10092}
10093
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10094/* 8. Check on URI PATH. A pointer to the PATH is stored. The path starts at
10095 * the first '/' after the possible hostname, and ends before the possible '?'.
10096 */
10097static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10098smp_fetch_path(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10099{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10100 struct http_txn *txn;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10101 char *ptr, *end;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10102
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10103 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10104
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10105 txn = smp->strm->txn;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10106 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]10107 ptr = http_get_path(txn);
10108 if (!ptr)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10109 return 0;
10110
10111 /* OK, we got the '/' ! */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10112 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10113 smp->data.u.str.str = ptr;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10114
10115 while (ptr < end && *ptr != '?')
10116 ptr++;
10117
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10118 smp->data.u.str.len = ptr - smp->data.u.str.str;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10119 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10120 return 1;
10121}
10122
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10123/* This produces a concatenation of the first occurrence of the Host header
10124 * followed by the path component if it begins with a slash ('/'). This means
10125 * that '*' will not be added, resulting in exactly the first Host entry.
10126 * If no Host header is found, then the path is returned as-is. The returned
10127 * 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]10128 * The returned sample is of type string.
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10129 */
10130static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10131smp_fetch_base(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10132{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10133 struct http_txn *txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10134 char *ptr, *end, *beg;
10135 struct hdr_ctx ctx;
Willy Tarreau3caf2af2014-06-24 17:27:02 +0200[diff] [blame]10136 struct chunk *temp;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10137
10138 CHECK_HTTP_MESSAGE_FIRST();
10139
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10140 txn = smp->strm->txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10141 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10142 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]10143 return smp_fetch_path(args, smp, kw, private);
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10144
10145 /* 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]10146 temp = get_trash_chunk();
10147 memcpy(temp->str, ctx.line + ctx.val, ctx.vlen);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10148 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10149 smp->data.u.str.str = temp->str;
10150 smp->data.u.str.len = ctx.vlen;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10151
10152 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10153 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]10154 beg = http_get_path(txn);
10155 if (!beg)
10156 beg = end;
10157
10158 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10159
10160 if (beg < ptr && *beg == '/') {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10161 memcpy(smp->data.u.str.str + smp->data.u.str.len, beg, ptr - beg);
10162 smp->data.u.str.len += ptr - beg;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10163 }
10164
10165 smp->flags = SMP_F_VOL_1ST;
10166 return 1;
10167}
10168
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10169/* This produces a 32-bit hash of the concatenation of the first occurrence of
10170 * the Host header followed by the path component if it begins with a slash ('/').
10171 * This means that '*' will not be added, resulting in exactly the first Host
10172 * 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]10173 * is hashed using the path hash followed by a full avalanche hash and provides a
10174 * 32-bit integer value. This fetch is useful for tracking per-path activity on
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10175 * high-traffic sites without having to store whole paths.
10176 */
Thierry FOURNIER055b9d52014-07-15 16:11:07 +0200[diff] [blame]10177int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10178smp_fetch_base32(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10179{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10180 struct http_txn *txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10181 struct hdr_ctx ctx;
10182 unsigned int hash = 0;
10183 char *ptr, *beg, *end;
10184 int len;
10185
10186 CHECK_HTTP_MESSAGE_FIRST();
10187
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10188 txn = smp->strm->txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10189 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10190 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]10191 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
10192 ptr = ctx.line + ctx.val;
10193 len = ctx.vlen;
10194 while (len--)
10195 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
10196 }
10197
10198 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10199 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]10200 beg = http_get_path(txn);
10201 if (!beg)
10202 beg = end;
10203
10204 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10205
10206 if (beg < ptr && *beg == '/') {
10207 while (beg < ptr)
10208 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
10209 }
10210 hash = full_hash(hash);
10211
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10212 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10213 smp->data.u.sint = hash;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10214 smp->flags = SMP_F_VOL_1ST;
10215 return 1;
10216}
10217
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10218/* 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]10219 * path as returned by smp_fetch_base32(). The idea is to have per-source and
10220 * per-path counters. The result is a binary block from 8 to 20 bytes depending
10221 * on the source address length. The path hash is stored before the address so
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10222 * that in environments where IPv6 is insignificant, truncating the output to
10223 * 8 bytes would still work.
10224 */
10225static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10226smp_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]10227{
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10228 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10229 struct connection *cli_conn = objt_conn(smp->sess->origin);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10230
10231 if (!cli_conn)
10232 return 0;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10233
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10234 if (!smp_fetch_base32(args, smp, kw, private))
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10235 return 0;
10236
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10237 temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10238 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
Willy Tarreau5ad6e1d2014-07-15 21:34:06 +0200[diff] [blame]10239 temp->len += sizeof(unsigned int);
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10240
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10241 switch (cli_conn->addr.from.ss_family) {
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10242 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10243 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]10244 temp->len += 4;
10245 break;
10246 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10247 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]10248 temp->len += 16;
10249 break;
10250 default:
10251 return 0;
10252 }
10253
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10254 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10255 smp->data.type = SMP_T_BIN;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10256 return 1;
10257}
10258
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10259/* Extracts the query string, which comes after the question mark '?'. If no
10260 * question mark is found, nothing is returned. Otherwise it returns a sample
10261 * of type string carrying the whole query string.
10262 */
10263static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10264smp_fetch_query(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10265{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10266 struct http_txn *txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10267 char *ptr, *end;
10268
10269 CHECK_HTTP_MESSAGE_FIRST();
10270
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10271 txn = smp->strm->txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10272 ptr = txn->req.chn->buf->p + txn->req.sl.rq.u;
10273 end = ptr + txn->req.sl.rq.u_l;
10274
10275 /* look up the '?' */
10276 do {
10277 if (ptr == end)
10278 return 0;
10279 } while (*ptr++ != '?');
10280
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10281 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10282 smp->data.u.str.str = ptr;
10283 smp->data.u.str.len = end - ptr;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10284 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
10285 return 1;
10286}
10287
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10288static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10289smp_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]10290{
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10291 /* Note: hdr_idx.v cannot be NULL in this ACL because the ACL is tagged
10292 * as a layer7 ACL, which involves automatic allocation of hdr_idx.
10293 */
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10294
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10295 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10296
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10297 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10298 smp->data.u.sint = 1;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10299 return 1;
10300}
10301
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10302/* return a valid test if the current request is the first one on the connection */
10303static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10304smp_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]10305{
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10306 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10307 smp->data.u.sint = !(smp->strm->txn->flags & TX_NOT_FIRST);
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10308 return 1;
10309}
10310
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10311/* Accepts exactly 1 argument of type userlist */
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10312static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10313smp_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]10314{
10315
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10316 if (!args || args->type != ARGT_USR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10317 return 0;
10318
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10319 CHECK_HTTP_MESSAGE_FIRST();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10320
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10321 if (!get_http_auth(smp->strm))
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10322 return 0;
10323
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10324 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10325 smp->data.u.sint = check_user(args->data.usr, smp->strm->txn->auth.user,
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10326 smp->strm->txn->auth.pass);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10327 return 1;
10328}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10329
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10330/* Accepts exactly 1 argument of type userlist */
10331static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10332smp_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]10333{
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10334 if (!args || args->type != ARGT_USR)
10335 return 0;
10336
10337 CHECK_HTTP_MESSAGE_FIRST();
10338
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10339 if (!get_http_auth(smp->strm))
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10340 return 0;
10341
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10342 /* if the user does not belong to the userlist or has a wrong password,
10343 * report that it unconditionally does not match. Otherwise we return
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10344 * a string containing the username.
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10345 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10346 if (!check_user(args->data.usr, smp->strm->txn->auth.user,
10347 smp->strm->txn->auth.pass))
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10348 return 0;
10349
10350 /* pat_match_auth() will need the user list */
10351 smp->ctx.a[0] = args->data.usr;
10352
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10353 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10354 smp->flags = SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10355 smp->data.u.str.str = smp->strm->txn->auth.user;
10356 smp->data.u.str.len = strlen(smp->strm->txn->auth.user);
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10357
10358 return 1;
10359}
10360
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10361/* Try to find the next occurrence of a cookie name in a cookie header value.
10362 * The lookup begins at <hdr>. The pointer and size of the next occurrence of
10363 * the cookie value is returned into *value and *value_l, and the function
10364 * returns a pointer to the next pointer to search from if the value was found.
10365 * Otherwise if the cookie was not found, NULL is returned and neither value
10366 * nor value_l are touched. The input <hdr> string should first point to the
10367 * header's value, and the <hdr_end> pointer must point to the first character
10368 * not part of the value. <list> must be non-zero if value may represent a list
10369 * of values (cookie headers). This makes it faster to abort parsing when no
10370 * list is expected.
10371 */
David Carlier4686f792015-09-25 14:10:50 +0100[diff] [blame]10372char *
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10373extract_cookie_value(char *hdr, const char *hdr_end,
10374 char *cookie_name, size_t cookie_name_l, int list,
Willy Tarreau3fb818c2012-04-11 17:21:08 +0200[diff] [blame]10375 char **value, int *value_l)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10376{
10377 char *equal, *att_end, *att_beg, *val_beg, *val_end;
10378 char *next;
10379
10380 /* we search at least a cookie name followed by an equal, and more
10381 * generally something like this :
10382 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
10383 */
10384 for (att_beg = hdr; att_beg + cookie_name_l + 1 < hdr_end; att_beg = next + 1) {
10385 /* Iterate through all cookies on this line */
10386
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10387 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10388 att_beg++;
10389
10390 /* find att_end : this is the first character after the last non
10391 * space before the equal. It may be equal to hdr_end.
10392 */
10393 equal = att_end = att_beg;
10394
10395 while (equal < hdr_end) {
10396 if (*equal == '=' || *equal == ';' || (list && *equal == ','))
10397 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10398 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10399 continue;
10400 att_end = equal;
10401 }
10402
10403 /* here, <equal> points to '=', a delimitor or the end. <att_end>
10404 * is between <att_beg> and <equal>, both may be identical.
10405 */
10406
10407 /* look for end of cookie if there is an equal sign */
10408 if (equal < hdr_end && *equal == '=') {
10409 /* look for the beginning of the value */
10410 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10411 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10412 val_beg++;
10413
10414 /* find the end of the value, respecting quotes */
10415 next = find_cookie_value_end(val_beg, hdr_end);
10416
10417 /* make val_end point to the first white space or delimitor after the value */
10418 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10419 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10420 val_end--;
10421 } else {
10422 val_beg = val_end = next = equal;
10423 }
10424
10425 /* We have nothing to do with attributes beginning with '$'. However,
10426 * they will automatically be removed if a header before them is removed,
10427 * since they're supposed to be linked together.
10428 */
10429 if (*att_beg == '$')
10430 continue;
10431
10432 /* Ignore cookies with no equal sign */
10433 if (equal == next)
10434 continue;
10435
10436 /* Now we have the cookie name between att_beg and att_end, and
10437 * its value between val_beg and val_end.
10438 */
10439
10440 if (att_end - att_beg == cookie_name_l &&
10441 memcmp(att_beg, cookie_name, cookie_name_l) == 0) {
10442 /* let's return this value and indicate where to go on from */
10443 *value = val_beg;
10444 *value_l = val_end - val_beg;
10445 return next + 1;
10446 }
10447
10448 /* Set-Cookie headers only have the name in the first attr=value part */
10449 if (!list)
10450 break;
10451 }
10452
10453 return NULL;
10454}
10455
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10456/* Fetch a captured HTTP request header. The index is the position of
10457 * the "capture" option in the configuration file
10458 */
10459static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10460smp_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]10461{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10462 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10463 int idx;
10464
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10465 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10466 return 0;
10467
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10468 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10469
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10470 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]10471 return 0;
10472
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10473 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10474 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10475 smp->data.u.str.str = smp->strm->req_cap[idx];
10476 smp->data.u.str.len = strlen(smp->strm->req_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10477
10478 return 1;
10479}
10480
10481/* Fetch a captured HTTP response header. The index is the position of
10482 * the "capture" option in the configuration file
10483 */
10484static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10485smp_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]10486{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10487 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10488 int idx;
10489
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10490 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10491 return 0;
10492
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10493 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10494
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10495 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]10496 return 0;
10497
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10498 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10499 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10500 smp->data.u.str.str = smp->strm->res_cap[idx];
10501 smp->data.u.str.len = strlen(smp->strm->res_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10502
10503 return 1;
10504}
10505
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10506/* Extracts the METHOD in the HTTP request, the txn->uri should be filled before the call */
10507static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10508smp_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]10509{
10510 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10511 struct http_txn *txn = smp->strm->txn;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10512 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10513
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10514 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10515 return 0;
10516
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10517 ptr = txn->uri;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10518
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10519 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10520 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10521
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10522 temp = get_trash_chunk();
10523 temp->str = txn->uri;
10524 temp->len = ptr - txn->uri;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10525 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10526 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10527 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10528
10529 return 1;
10530
10531}
10532
10533/* Extracts the path in the HTTP request, the txn->uri should be filled before the call */
10534static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10535smp_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]10536{
10537 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10538 struct http_txn *txn = smp->strm->txn;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10539 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10540
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10541 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10542 return 0;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10543
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10544 ptr = txn->uri;
10545
10546 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10547 ptr++;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10548
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10549 if (!*ptr)
10550 return 0;
10551
10552 ptr++; /* skip the space */
10553
10554 temp = get_trash_chunk();
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10555 ptr = temp->str = http_get_path_from_string(ptr);
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10556 if (!ptr)
10557 return 0;
10558 while (*ptr != ' ' && *ptr != '\0') /* find space after URI */
10559 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10560
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10561 smp->data.u.str = *temp;
10562 smp->data.u.str.len = ptr - temp->str;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10563 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10564 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10565
10566 return 1;
10567}
10568
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10569/* Retrieves the HTTP version from the request (either 1.0 or 1.1) and emits it
10570 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10571 */
10572static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10573smp_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]10574{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10575 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10576
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10577 if (!txn || txn->req.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10578 return 0;
10579
10580 if (txn->req.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10581 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10582 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10583 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10584
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10585 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10586 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10587 smp->flags = SMP_F_CONST;
10588 return 1;
10589
10590}
10591
10592/* Retrieves the HTTP version from the response (either 1.0 or 1.1) and emits it
10593 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10594 */
10595static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10596smp_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]10597{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10598 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10599
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10600 if (!txn || txn->rsp.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10601 return 0;
10602
10603 if (txn->rsp.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10604 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10605 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10606 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10607
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10608 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10609 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10610 smp->flags = SMP_F_CONST;
10611 return 1;
10612
10613}
10614
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10615
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10616/* Iterate over all cookies present in a message. The context is stored in
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10617 * 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]10618 * 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]10619 * the direction, multiple cookies may be parsed on the same line or not.
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10620 * 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]10621 * Accepts exactly 1 argument of type string. If the input options indicate
10622 * that no iterating is desired, then only last value is fetched if any.
William Lallemand07c8b242014-05-02 17:11:07 +0200[diff] [blame]10623 * The returned sample is of type CSTR. Can be used to parse cookies in other
10624 * files.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10625 */
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10626int 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]10627{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10628 struct http_txn *txn;
10629 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10630 struct hdr_ctx *ctx = smp->ctx.a[2];
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10631 const struct http_msg *msg;
10632 const char *hdr_name;
10633 int hdr_name_len;
10634 char *sol;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10635 int occ = 0;
10636 int found = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10637
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10638 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10639 return 0;
10640
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10641 if (!ctx) {
10642 /* first call */
10643 ctx = &static_hdr_ctx;
10644 ctx->idx = 0;
10645 smp->ctx.a[2] = ctx;
10646 }
10647
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10648 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10649
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10650 txn = smp->strm->txn;
10651 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10652
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10653 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10654 msg = &txn->req;
10655 hdr_name = "Cookie";
10656 hdr_name_len = 6;
10657 } else {
10658 msg = &txn->rsp;
10659 hdr_name = "Set-Cookie";
10660 hdr_name_len = 10;
10661 }
10662
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10663 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10664 /* no explicit occurrence and single fetch => last cookie by default */
10665 occ = -1;
10666
10667 /* OK so basically here, either we want only one value and it's the
10668 * last one, or we want to iterate over all of them and we fetch the
10669 * next one.
10670 */
10671
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10672 sol = msg->chn->buf->p;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10673 if (!(smp->flags & SMP_F_NOT_LAST)) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10674 /* search for the header from the beginning, we must first initialize
10675 * the search parameters.
10676 */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10677 smp->ctx.a[0] = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10678 ctx->idx = 0;
10679 }
10680
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10681 smp->flags |= SMP_F_VOL_HDR;
10682
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10683 while (1) {
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10684 /* Note: smp->ctx.a[0] == NULL every time we need to fetch a new header */
10685 if (!smp->ctx.a[0]) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10686 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, ctx))
10687 goto out;
10688
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10689 if (ctx->vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10690 continue;
10691
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10692 smp->ctx.a[0] = ctx->line + ctx->val;
10693 smp->ctx.a[1] = smp->ctx.a[0] + ctx->vlen;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10694 }
10695
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10696 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10697 smp->flags |= SMP_F_CONST;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10698 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]10699 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10700 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10701 &smp->data.u.str.str,
10702 &smp->data.u.str.len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10703 if (smp->ctx.a[0]) {
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10704 found = 1;
10705 if (occ >= 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10706 /* one value was returned into smp->data.u.str.{str,len} */
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10707 smp->flags |= SMP_F_NOT_LAST;
10708 return 1;
10709 }
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10710 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10711 /* if we're looking for last occurrence, let's loop */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10712 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10713 /* all cookie headers and values were scanned. If we're looking for the
10714 * last occurrence, we may return it now.
10715 */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10716 out:
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10717 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10718 return found;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10719}
10720
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10721/* Iterate over all cookies present in a request to count how many occurrences
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10722 * 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]10723 * multiple cookies may be parsed on the same line. The returned sample is of
10724 * type UINT. Accepts exactly 1 argument of type string.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10725 */
10726static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10727smp_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]10728{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10729 struct http_txn *txn;
10730 struct hdr_idx *idx;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10731 struct hdr_ctx ctx;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10732 const struct http_msg *msg;
10733 const char *hdr_name;
10734 int hdr_name_len;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10735 int cnt;
10736 char *val_beg, *val_end;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10737 char *sol;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10738
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10739 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10740 return 0;
10741
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10742 CHECK_HTTP_MESSAGE_FIRST();
10743
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10744 txn = smp->strm->txn;
10745 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10746
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10747 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10748 msg = &txn->req;
10749 hdr_name = "Cookie";
10750 hdr_name_len = 6;
10751 } else {
10752 msg = &txn->rsp;
10753 hdr_name = "Set-Cookie";
10754 hdr_name_len = 10;
10755 }
10756
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10757 sol = msg->chn->buf->p;
Willy Tarreau46787ed2012-04-11 17:28:40 +0200[diff] [blame]10758 val_end = val_beg = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10759 ctx.idx = 0;
10760 cnt = 0;
10761
10762 while (1) {
10763 /* Note: val_beg == NULL every time we need to fetch a new header */
10764 if (!val_beg) {
10765 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, &ctx))
10766 break;
10767
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10768 if (ctx.vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10769 continue;
10770
10771 val_beg = ctx.line + ctx.val;
10772 val_end = val_beg + ctx.vlen;
10773 }
10774
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10775 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10776 smp->flags |= SMP_F_CONST;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10777 while ((val_beg = extract_cookie_value(val_beg, val_end,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10778 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10779 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10780 &smp->data.u.str.str,
10781 &smp->data.u.str.len))) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10782 cnt++;
10783 }
10784 }
10785
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10786 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10787 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10788 smp->flags |= SMP_F_VOL_HDR;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10789 return 1;
10790}
10791
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]10792/* Fetch an cookie's integer value. The integer value is returned. It
10793 * takes a mandatory argument of type string. It relies on smp_fetch_cookie().
10794 */
10795static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10796smp_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]10797{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10798 int ret = smp_fetch_cookie(args, smp, kw, private);
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]10799
10800 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10801 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10802 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]10803 }
10804
10805 return ret;
10806}
10807
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10808/************************************************************************/
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]10809/* The code below is dedicated to sample fetches */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]10810/************************************************************************/
10811
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10812/*
10813 * Given a path string and its length, find the position of beginning of the
10814 * query string. Returns NULL if no query string is found in the path.
10815 *
10816 * Example: if path = "/foo/bar/fubar?yo=mama;ye=daddy", and n = 22:
10817 *
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10818 * find_query_string(path, n, '?') points to "yo=mama;ye=daddy" string.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10819 */
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10820static inline char *find_param_list(char *path, size_t path_l, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10821{
10822 char *p;
Emeric Brun485479d2010-09-23 18:02:19 +0200[diff] [blame]10823
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10824 p = memchr(path, delim, path_l);
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10825 return p ? p + 1 : NULL;
10826}
10827
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10828static inline int is_param_delimiter(char c, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10829{
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10830 return c == '&' || c == ';' || c == delim;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10831}
10832
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10833/* after increasing a pointer value, it can exceed the first buffer
10834 * size. This function transform the value of <ptr> according with
10835 * the expected position. <chunks> is an array of the one or two
10836 * avalaible chunks. The first value is the start of the first chunk,
10837 * the second value if the end+1 of the first chunks. The third value
10838 * is NULL or the start of the second chunk and the fourth value is
10839 * the end+1 of the second chunk. The function returns 1 if does a
10840 * wrap, else returns 0.
10841 */
10842static inline int fix_pointer_if_wrap(const char **chunks, const char **ptr)
10843{
10844 if (*ptr < chunks[1])
10845 return 0;
10846 if (!chunks[2])
10847 return 0;
10848 *ptr = chunks[2] + ( *ptr - chunks[1] );
10849 return 1;
10850}
10851
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10852/*
10853 * Given a url parameter, find the starting position of the first occurence,
10854 * or NULL if the parameter is not found.
10855 *
10856 * Example: if query_string is "yo=mama;ye=daddy" and url_param_name is "ye",
10857 * the function will return query_string+8.
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10858 *
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10859 * Warning: this function returns a pointer that can point to the first chunk
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10860 * or the second chunk. The caller must be check the position before using the
10861 * result.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10862 */
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10863static const char *
10864find_url_param_pos(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10865 const char* url_param_name, size_t url_param_name_l,
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10866 char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10867{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10868 const char *pos, *last, *equal;
10869 const char **bufs = chunks;
10870 int l1, l2;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10871
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10872
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10873 pos = bufs[0];
10874 last = bufs[1];
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10875 while (pos < last) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10876 /* Check the equal. */
10877 equal = pos + url_param_name_l;
10878 if (fix_pointer_if_wrap(chunks, &equal)) {
10879 if (equal >= chunks[3])
10880 return NULL;
10881 } else {
10882 if (equal >= chunks[1])
10883 return NULL;
10884 }
10885 if (*equal == '=') {
10886 if (pos + url_param_name_l > last) {
10887 /* process wrap case, we detect a wrap. In this case, the
10888 * comparison is performed in two parts.
10889 */
10890
10891 /* This is the end, we dont have any other chunk. */
10892 if (bufs != chunks || !bufs[2])
10893 return NULL;
10894
10895 /* Compute the length of each part of the comparison. */
10896 l1 = last - pos;
10897 l2 = url_param_name_l - l1;
10898
10899 /* The second buffer is too short to contain the compared string. */
10900 if (bufs[2] + l2 > bufs[3])
10901 return NULL;
10902
10903 if (memcmp(pos, url_param_name, l1) == 0 &&
10904 memcmp(bufs[2], url_param_name+l1, l2) == 0)
10905 return pos;
10906
10907 /* Perform wrapping and jump the string who fail the comparison. */
10908 bufs += 2;
10909 pos = bufs[0] + l2;
10910 last = bufs[1];
10911
10912 } else {
10913 /* process a simple comparison. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10914 if (memcmp(pos, url_param_name, url_param_name_l) == 0)
10915 return pos;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10916 pos += url_param_name_l + 1;
10917 if (fix_pointer_if_wrap(chunks, &pos))
10918 last = bufs[2];
10919 }
10920 }
10921
10922 while (1) {
10923 /* Look for the next delimiter. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10924 while (pos < last && !is_param_delimiter(*pos, delim))
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10925 pos++;
10926 if (pos < last)
10927 break;
10928 /* process buffer wrapping. */
10929 if (bufs != chunks || !bufs[2])
10930 return NULL;
10931 bufs += 2;
10932 pos = bufs[0];
10933 last = bufs[1];
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10934 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10935 pos++;
10936 }
10937 return NULL;
10938}
10939
10940/*
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]10941 * Given a url parameter name and a query string, find the next value.
10942 * An empty url_param_name matches the first available parameter.
10943 * If the parameter is found, 1 is returned and *vstart / *vend are updated to
10944 * respectively provide a pointer to the value and its end.
10945 * Otherwise, 0 is returned and vstart/vend are not modified.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10946 */
10947static int
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10948find_next_url_param(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10949 const char* url_param_name, size_t url_param_name_l,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10950 const char **vstart, const char **vend, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10951{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10952 const char *arg_start, *qs_end;
10953 const char *value_start, *value_end;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10954
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10955 arg_start = chunks[0];
10956 qs_end = chunks[1];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10957 if (url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10958 /* Looks for an argument name. */
10959 arg_start = find_url_param_pos(chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10960 url_param_name, url_param_name_l,
10961 delim);
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10962 /* Check for wrapping. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10963 if (arg_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10964 qs_end = chunks[3];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10965 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10966 if (!arg_start)
10967 return 0;
10968
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10969 if (!url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10970 while (1) {
10971 /* looks for the first argument. */
10972 value_start = memchr(arg_start, '=', qs_end - arg_start);
10973 if (!value_start) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10974 /* Check for wrapping. */
10975 if (arg_start >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10976 arg_start < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10977 chunks[2]) {
10978 arg_start = chunks[2];
10979 qs_end = chunks[3];
10980 continue;
10981 }
10982 return 0;
10983 }
10984 break;
10985 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10986 value_start++;
10987 }
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10988 else {
10989 /* Jump the argument length. */
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10990 value_start = arg_start + url_param_name_l + 1;
10991
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10992 /* Check for pointer wrapping. */
10993 if (fix_pointer_if_wrap(chunks, &value_start)) {
10994 /* Update the end pointer. */
10995 qs_end = chunks[3];
10996
10997 /* Check for overflow. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10998 if (value_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10999 return 0;
11000 }
11001 }
11002
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11003 value_end = value_start;
11004
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11005 while (1) {
11006 while ((value_end < qs_end) && !is_param_delimiter(*value_end, delim))
11007 value_end++;
11008 if (value_end < qs_end)
11009 break;
11010 /* process buffer wrapping. */
11011 if (value_end >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11012 value_end < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11013 chunks[2]) {
11014 value_end = chunks[2];
11015 qs_end = chunks[3];
11016 continue;
11017 }
11018 break;
11019 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11020
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11021 *vstart = value_start;
11022 *vend = value_end;
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11023 return 1;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11024}
11025
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11026/* This scans a URL-encoded query string. It takes an optionally wrapping
11027 * string whose first contigous chunk has its beginning in ctx->a[0] and end
11028 * in ctx->a[1], and the optional second part in (ctx->a[2]..ctx->a[3]). The
11029 * pointers are updated for next iteration before leaving.
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11030 */
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11031static int
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11032smp_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]11033{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11034 const char *vstart, *vend;
11035 struct chunk *temp;
11036 const char **chunks = (const char **)smp->ctx.a;
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11037
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11038 if (!find_next_url_param(chunks,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11039 name, name_len,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11040 &vstart, &vend,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11041 delim))
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11042 return 0;
11043
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11044 /* Create sample. If the value is contiguous, return the pointer as CONST,
11045 * if the value is wrapped, copy-it in a buffer.
11046 */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11047 smp->data.type = SMP_T_STR;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11048 if (chunks[2] &&
11049 vstart >= chunks[0] && vstart <= chunks[1] &&
11050 vend >= chunks[2] && vend <= chunks[3]) {
11051 /* Wrapped case. */
11052 temp = get_trash_chunk();
11053 memcpy(temp->str, vstart, chunks[1] - vstart);
11054 memcpy(temp->str + ( chunks[1] - vstart ), chunks[2], vend - chunks[2]);
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11055 smp->data.u.str.str = temp->str;
11056 smp->data.u.str.len = ( chunks[1] - vstart ) + ( vend - chunks[2] );
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11057 } else {
11058 /* Contiguous case. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11059 smp->data.u.str.str = (char *)vstart;
11060 smp->data.u.str.len = vend - vstart;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11061 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
11062 }
11063
11064 /* Update context, check wrapping. */
11065 chunks[0] = vend;
11066 if (chunks[2] && vend >= chunks[2] && vend <= chunks[3]) {
11067 chunks[1] = chunks[3];
11068 chunks[2] = NULL;
11069 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11070
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11071 if (chunks[0] < chunks[1])
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11072 smp->flags |= SMP_F_NOT_LAST;
11073
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11074 return 1;
11075}
11076
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11077/* This function iterates over each parameter of the query string. It uses
11078 * 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]11079 * parameter. Since it uses smp_fetch_param(), ctx->a[2..3] are both NULL.
11080 * An optional parameter name is passed in args[0], otherwise any parameter is
11081 * considered. It supports an optional delimiter argument for the beginning of
11082 * the string in args[1], which defaults to "?".
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11083 */
11084static int
11085smp_fetch_url_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11086{
11087 struct http_msg *msg;
11088 char delim = '?';
11089 const char *name;
11090 int name_len;
11091
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11092 if (!args ||
11093 (args[0].type && args[0].type != ARGT_STR) ||
11094 (args[1].type && args[1].type != ARGT_STR))
11095 return 0;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11096
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11097 name = "";
11098 name_len = 0;
11099 if (args->type == ARGT_STR) {
11100 name = args->data.str.str;
11101 name_len = args->data.str.len;
11102 }
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11103
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11104 if (args[1].type)
11105 delim = *args[1].data.str.str;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11106
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11107 if (!smp->ctx.a[0]) { // first call, find the query string
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11108 CHECK_HTTP_MESSAGE_FIRST();
11109
11110 msg = &smp->strm->txn->req;
11111
11112 smp->ctx.a[0] = find_param_list(msg->chn->buf->p + msg->sl.rq.u,
11113 msg->sl.rq.u_l, delim);
11114 if (!smp->ctx.a[0])
11115 return 0;
11116
11117 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]11118
11119 /* Assume that the context is filled with NULL pointer
11120 * before the first call.
11121 * smp->ctx.a[2] = NULL;
11122 * smp->ctx.a[3] = NULL;
11123 */
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11124 }
11125
11126 return smp_fetch_param(delim, name, name_len, args, smp, kw, private);
11127}
11128
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11129/* This function iterates over each parameter of the body. This requires
11130 * that the body has been waited for using http-buffer-request. It uses
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11131 * ctx->a[0] and ctx->a[1] to store the beginning and end of the first
11132 * contigous part of the body, and optionally ctx->a[2..3] to reference the
11133 * optional second part if the body wraps at the end of the buffer. An optional
11134 * parameter name is passed in args[0], otherwise any parameter is considered.
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11135 */
11136static int
11137smp_fetch_body_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11138{
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11139 struct http_msg *msg;
11140 unsigned long len;
11141 unsigned long block1;
11142 char *body;
11143 const char *name;
11144 int name_len;
11145
11146 if (!args || (args[0].type && args[0].type != ARGT_STR))
11147 return 0;
11148
11149 name = "";
11150 name_len = 0;
11151 if (args[0].type == ARGT_STR) {
11152 name = args[0].data.str.str;
11153 name_len = args[0].data.str.len;
11154 }
11155
11156 if (!smp->ctx.a[0]) { // first call, find the query string
11157 CHECK_HTTP_MESSAGE_FIRST();
11158
11159 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11160 msg = &smp->strm->txn->req;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11161 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11162 msg = &smp->strm->txn->rsp;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11163
11164 len = http_body_bytes(msg);
11165 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
11166
11167 block1 = len;
11168 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
11169 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
11170
11171 if (block1 == len) {
11172 /* buffer is not wrapped (or empty) */
11173 smp->ctx.a[0] = body;
11174 smp->ctx.a[1] = body + len;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11175
11176 /* Assume that the context is filled with NULL pointer
11177 * before the first call.
11178 * smp->ctx.a[2] = NULL;
11179 * smp->ctx.a[3] = NULL;
11180 */
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11181 }
11182 else {
11183 /* buffer is wrapped, we need to defragment it */
11184 smp->ctx.a[0] = body;
11185 smp->ctx.a[1] = body + block1;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11186 smp->ctx.a[2] = msg->chn->buf->data;
11187 smp->ctx.a[3] = msg->chn->buf->data + ( len - block1 );
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11188 }
11189 }
11190 return smp_fetch_param('&', name, name_len, args, smp, kw, private);
11191}
11192
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11193/* Return the signed integer value for the specified url parameter (see url_param
11194 * above).
11195 */
11196static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11197smp_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]11198{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11199 int ret = smp_fetch_url_param(args, smp, kw, private);
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11200
11201 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11202 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11203 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]11204 }
11205
11206 return ret;
11207}
11208
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11209/* This produces a 32-bit hash of the concatenation of the first occurrence of
11210 * the Host header followed by the path component if it begins with a slash ('/').
11211 * This means that '*' will not be added, resulting in exactly the first Host
11212 * entry. If no Host header is found, then the path is used. The resulting value
11213 * is hashed using the url hash followed by a full avalanche hash and provides a
11214 * 32-bit integer value. This fetch is useful for tracking per-URL activity on
11215 * high-traffic sites without having to store whole paths.
11216 * this differs from the base32 functions in that it includes the url parameters
11217 * as well as the path
11218 */
11219static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11220smp_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]11221{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11222 struct http_txn *txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11223 struct hdr_ctx ctx;
11224 unsigned int hash = 0;
11225 char *ptr, *beg, *end;
11226 int len;
11227
11228 CHECK_HTTP_MESSAGE_FIRST();
11229
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11230 txn = smp->strm->txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11231 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11232 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]11233 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
11234 ptr = ctx.line + ctx.val;
11235 len = ctx.vlen;
11236 while (len--)
11237 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
11238 }
11239
11240 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11241 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]11242 beg = http_get_path(txn);
11243 if (!beg)
11244 beg = end;
11245
11246 for (ptr = beg; ptr < end ; ptr++);
11247
11248 if (beg < ptr && *beg == '/') {
11249 while (beg < ptr)
11250 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
11251 }
11252 hash = full_hash(hash);
11253
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11254 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11255 smp->data.u.sint = hash;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11256 smp->flags = SMP_F_VOL_1ST;
11257 return 1;
11258}
11259
11260/* This concatenates the source address with the 32-bit hash of the Host and
11261 * URL as returned by smp_fetch_base32(). The idea is to have per-source and
11262 * per-url counters. The result is a binary block from 8 to 20 bytes depending
11263 * on the source address length. The URL hash is stored before the address so
11264 * that in environments where IPv6 is insignificant, truncating the output to
11265 * 8 bytes would still work.
11266 */
11267static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11268smp_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]11269{
11270 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11271 struct connection *cli_conn = objt_conn(smp->sess->origin);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11272
Dragan Dosendb5af612016-06-16 11:23:01 +0200[diff] [blame]11273 if (!cli_conn)
11274 return 0;
11275
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11276 if (!smp_fetch_url32(args, smp, kw, private))
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11277 return 0;
11278
11279 temp = get_trash_chunk();
Dragan Dosene5f41332016-06-16 11:08:08 +0200[diff] [blame]11280 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
11281 temp->len += sizeof(unsigned int);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11282
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11283 switch (cli_conn->addr.from.ss_family) {
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11284 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11285 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]11286 temp->len += 4;
11287 break;
11288 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11289 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]11290 temp->len += 16;
11291 break;
11292 default:
11293 return 0;
11294 }
11295
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11296 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11297 smp->data.type = SMP_T_BIN;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11298 return 1;
11299}
11300
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11301/* This function is used to validate the arguments passed to any "hdr" fetch
11302 * keyword. These keywords support an optional positive or negative occurrence
11303 * number. We must ensure that the number is greater than -MAX_HDR_HISTORY. It
11304 * is assumed that the types are already the correct ones. Returns 0 on error,
11305 * non-zero if OK. If <err> is not NULL, it will be filled with a pointer to an
11306 * error message in case of error, that the caller is responsible for freeing.
11307 * The initial location must either be freeable or NULL.
11308 */
Thierry FOURNIER49f45af2014-12-08 19:50:43 +0100[diff] [blame]11309int val_hdr(struct arg *arg, char **err_msg)
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11310{
11311 if (arg && arg[1].type == ARGT_SINT && arg[1].data.sint < -MAX_HDR_HISTORY) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]11312 memprintf(err_msg, "header occurrence must be >= %d", -MAX_HDR_HISTORY);
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11313 return 0;
11314 }
11315 return 1;
11316}
11317
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11318/* takes an UINT value on input supposed to represent the time since EPOCH,
11319 * adds an optional offset found in args[0] and emits a string representing
11320 * the date in RFC-1123/5322 format.
11321 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11322static int sample_conv_http_date(const struct arg *args, struct sample *smp, void *private)
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11323{
Cyril Bontéf78d8962016-01-22 19:40:28 +0100[diff] [blame]11324 const char day[7][4] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11325 const char mon[12][4] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
11326 struct chunk *temp;
11327 struct tm *tm;
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11328 /* 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]11329 time_t curr_date = smp->data.u.sint & 0x007fffffffffffffLL;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11330
11331 /* add offset */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11332 if (args && (args[0].type == ARGT_SINT))
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11333 curr_date += args[0].data.sint;
11334
11335 tm = gmtime(&curr_date);
Thierry FOURNIERfac9ccf2015-07-08 00:15:20 +0200[diff] [blame]11336 if (!tm)
11337 return 0;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11338
11339 temp = get_trash_chunk();
11340 temp->len = snprintf(temp->str, temp->size - temp->len,
11341 "%s, %02d %s %04d %02d:%02d:%02d GMT",
11342 day[tm->tm_wday], tm->tm_mday, mon[tm->tm_mon], 1900+tm->tm_year,
11343 tm->tm_hour, tm->tm_min, tm->tm_sec);
11344
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11345 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11346 smp->data.type = SMP_T_STR;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11347 return 1;
11348}
11349
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11350/* Match language range with language tag. RFC2616 14.4:
11351 *
11352 * A language-range matches a language-tag if it exactly equals
11353 * the tag, or if it exactly equals a prefix of the tag such
11354 * that the first tag character following the prefix is "-".
11355 *
11356 * Return 1 if the strings match, else return 0.
11357 */
11358static inline int language_range_match(const char *range, int range_len,
11359 const char *tag, int tag_len)
11360{
11361 const char *end = range + range_len;
11362 const char *tend = tag + tag_len;
11363 while (range < end) {
11364 if (*range == '-' && tag == tend)
11365 return 1;
11366 if (*range != *tag || tag == tend)
11367 return 0;
11368 range++;
11369 tag++;
11370 }
11371 /* Return true only if the last char of the tag is matched. */
11372 return tag == tend;
11373}
11374
11375/* Arguments: The list of expected value, the number of parts returned and the separator */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11376static int sample_conv_q_prefered(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11377{
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11378 const char *al = smp->data.u.str.str;
11379 const char *end = al + smp->data.u.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11380 const char *token;
11381 int toklen;
11382 int qvalue;
11383 const char *str;
11384 const char *w;
11385 int best_q = 0;
11386
11387 /* Set the constant to the sample, because the output of the
11388 * function will be peek in the constant configuration string.
11389 */
11390 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11391 smp->data.u.str.size = 0;
11392 smp->data.u.str.str = "";
11393 smp->data.u.str.len = 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11394
11395 /* Parse the accept language */
11396 while (1) {
11397
11398 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11399 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11400 al++;
11401 if (al >= end)
11402 break;
11403
11404 /* Start of the fisrt word. */
11405 token = al;
11406
11407 /* Look for separator: isspace(), ',' or ';'. Next value if 0 length word. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11408 while (al < end && *al != ';' && *al != ',' && !isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11409 al++;
11410 if (al == token)
11411 goto expect_comma;
11412
11413 /* Length of the token. */
11414 toklen = al - token;
11415 qvalue = 1000;
11416
11417 /* Check if the token exists in the list. If the token not exists,
11418 * jump to the next token.
11419 */
11420 str = args[0].data.str.str;
11421 w = str;
11422 while (1) {
11423 if (*str == ';' || *str == '\0') {
11424 if (language_range_match(token, toklen, w, str-w))
11425 goto look_for_q;
11426 if (*str == '\0')
11427 goto expect_comma;
11428 w = str + 1;
11429 }
11430 str++;
11431 }
11432 goto expect_comma;
11433
11434look_for_q:
11435
11436 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11437 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11438 al++;
11439 if (al >= end)
11440 goto process_value;
11441
11442 /* If ',' is found, process the result */
11443 if (*al == ',')
11444 goto process_value;
11445
11446 /* If the character is different from ';', look
11447 * for the end of the header part in best effort.
11448 */
11449 if (*al != ';')
11450 goto expect_comma;
11451
11452 /* Assumes that the char is ';', now expect "q=". */
11453 al++;
11454
11455 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11456 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11457 al++;
11458 if (al >= end)
11459 goto process_value;
11460
11461 /* Expect 'q'. If no 'q', continue in best effort */
11462 if (*al != 'q')
11463 goto process_value;
11464 al++;
11465
11466 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11467 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11468 al++;
11469 if (al >= end)
11470 goto process_value;
11471
11472 /* Expect '='. If no '=', continue in best effort */
11473 if (*al != '=')
11474 goto process_value;
11475 al++;
11476
11477 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11478 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11479 al++;
11480 if (al >= end)
11481 goto process_value;
11482
11483 /* Parse the q value. */
11484 qvalue = parse_qvalue(al, &al);
11485
11486process_value:
11487
11488 /* If the new q value is the best q value, then store the associated
11489 * language in the response. If qvalue is the biggest value (1000),
11490 * break the process.
11491 */
11492 if (qvalue > best_q) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11493 smp->data.u.str.str = (char *)w;
11494 smp->data.u.str.len = str - w;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11495 if (qvalue >= 1000)
11496 break;
11497 best_q = qvalue;
11498 }
11499
11500expect_comma:
11501
11502 /* Expect comma or end. If the end is detected, quit the loop. */
11503 while (al < end && *al != ',')
11504 al++;
11505 if (al >= end)
11506 break;
11507
11508 /* Comma is found, jump it and restart the analyzer. */
11509 al++;
11510 }
11511
11512 /* Set default value if required. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11513 if (smp->data.u.str.len == 0 && args[1].type == ARGT_STR) {
11514 smp->data.u.str.str = args[1].data.str.str;
11515 smp->data.u.str.len = args[1].data.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11516 }
11517
11518 /* Return true only if a matching language was found. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11519 return smp->data.u.str.len != 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11520}
11521
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11522/* This fetch url-decode any input string. */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11523static int sample_conv_url_dec(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11524{
11525 /* If the constant flag is set or if not size is avalaible at
11526 * the end of the buffer, copy the string in other buffer
11527 * before decoding.
11528 */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11529 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]11530 struct chunk *str = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11531 memcpy(str->str, smp->data.u.str.str, smp->data.u.str.len);
11532 smp->data.u.str.str = str->str;
11533 smp->data.u.str.size = str->size;
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11534 smp->flags &= ~SMP_F_CONST;
11535 }
11536
11537 /* Add final \0 required by url_decode(), and convert the input string. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11538 smp->data.u.str.str[smp->data.u.str.len] = '\0';
11539 smp->data.u.str.len = url_decode(smp->data.u.str.str);
Christopher Fauleta2584792017-10-05 10:03:12 +0200[diff] [blame]11540 return (smp->data.u.str.len >= 0);
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11541}
11542
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11543static int smp_conv_req_capture(const struct arg *args, struct sample *smp, void *private)
11544{
11545 struct proxy *fe = strm_fe(smp->strm);
11546 int idx, i;
11547 struct cap_hdr *hdr;
11548 int len;
11549
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11550 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11551 return 0;
11552
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11553 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11554
11555 /* Check the availibity of the capture id. */
11556 if (idx > fe->nb_req_cap - 1)
11557 return 0;
11558
11559 /* Look for the original configuration. */
11560 for (hdr = fe->req_cap, i = fe->nb_req_cap - 1;
11561 hdr != NULL && i != idx ;
11562 i--, hdr = hdr->next);
11563 if (!hdr)
11564 return 0;
11565
11566 /* check for the memory allocation */
11567 if (smp->strm->req_cap[hdr->index] == NULL)
11568 smp->strm->req_cap[hdr->index] = pool_alloc2(hdr->pool);
11569 if (smp->strm->req_cap[hdr->index] == NULL)
11570 return 0;
11571
11572 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11573 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11574 if (len > hdr->len)
11575 len = hdr->len;
11576
11577 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11578 memcpy(smp->strm->req_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11579 smp->strm->req_cap[idx][len] = '\0';
11580
11581 return 1;
11582}
11583
11584static int smp_conv_res_capture(const struct arg *args, struct sample *smp, void *private)
11585{
11586 struct proxy *fe = strm_fe(smp->strm);
11587 int idx, i;
11588 struct cap_hdr *hdr;
11589 int len;
11590
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11591 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11592 return 0;
11593
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11594 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11595
11596 /* Check the availibity of the capture id. */
11597 if (idx > fe->nb_rsp_cap - 1)
11598 return 0;
11599
11600 /* Look for the original configuration. */
11601 for (hdr = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
11602 hdr != NULL && i != idx ;
11603 i--, hdr = hdr->next);
11604 if (!hdr)
11605 return 0;
11606
11607 /* check for the memory allocation */
11608 if (smp->strm->res_cap[hdr->index] == NULL)
11609 smp->strm->res_cap[hdr->index] = pool_alloc2(hdr->pool);
11610 if (smp->strm->res_cap[hdr->index] == NULL)
11611 return 0;
11612
11613 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11614 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11615 if (len > hdr->len)
11616 len = hdr->len;
11617
11618 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11619 memcpy(smp->strm->res_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11620 smp->strm->res_cap[idx][len] = '\0';
11621
11622 return 1;
11623}
11624
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11625/* This function executes one of the set-{method,path,query,uri} actions. It
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11626 * takes the string from the variable 'replace' with length 'len', then modifies
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11627 * the relevant part of the request line accordingly. Then it updates various
11628 * pointers to the next elements which were moved, and the total buffer length.
11629 * It finds the action to be performed in p[2], previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11630 * parse_set_req_line(). It returns 0 in case of success, -1 in case of internal
11631 * error, though this can be revisited when this code is finally exploited.
11632 *
11633 * 'action' can be '0' to replace method, '1' to replace path, '2' to replace
11634 * query string and 3 to replace uri.
11635 *
11636 * In query string case, the mark question '?' must be set at the start of the
11637 * string by the caller, event if the replacement query string is empty.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11638 */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11639int http_replace_req_line(int action, const char *replace, int len,
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11640 struct proxy *px, struct stream *s)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11641{
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11642 struct http_txn *txn = s->txn;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11643 char *cur_ptr, *cur_end;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11644 int offset = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11645 int delta;
11646
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11647 switch (action) {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11648 case 0: // method
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11649 cur_ptr = s->req.buf->p;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11650 cur_end = cur_ptr + txn->req.sl.rq.m_l;
11651
11652 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11653 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11654 txn->req.sl.rq.m_l += delta;
11655 txn->req.sl.rq.u += delta;
11656 txn->req.sl.rq.v += delta;
11657 break;
11658
11659 case 1: // path
11660 cur_ptr = http_get_path(txn);
11661 if (!cur_ptr)
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11662 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11663
11664 cur_end = cur_ptr;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11665 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]11666 cur_end++;
11667
11668 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11669 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11670 txn->req.sl.rq.u_l += delta;
11671 txn->req.sl.rq.v += delta;
11672 break;
11673
11674 case 2: // query
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11675 offset = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11676 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11677 cur_end = cur_ptr + txn->req.sl.rq.u_l;
11678 while (cur_ptr < cur_end && *cur_ptr != '?')
11679 cur_ptr++;
11680
11681 /* skip the question mark or indicate that we must insert it
11682 * (but only if the format string is not empty then).
11683 */
11684 if (cur_ptr < cur_end)
11685 cur_ptr++;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11686 else if (len > 1)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11687 offset = 0;
11688
11689 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11690 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11691 txn->req.sl.rq.u_l += delta;
11692 txn->req.sl.rq.v += delta;
11693 break;
11694
11695 case 3: // uri
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11696 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11697 cur_end = cur_ptr + txn->req.sl.rq.u_l;
11698
11699 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11700 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11701 txn->req.sl.rq.u_l += delta;
11702 txn->req.sl.rq.v += delta;
11703 break;
11704
11705 default:
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11706 return -1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11707 }
11708
11709 /* commit changes and adjust end of message */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11710 delta = buffer_replace2(s->req.buf, cur_ptr, cur_end, replace + offset, len - offset);
Thierry FOURNIER7f6192c2015-04-26 18:01:40 +0200[diff] [blame]11711 txn->req.sl.rq.l += delta;
11712 txn->hdr_idx.v[0].len += delta;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11713 http_msg_move_end(&txn->req, delta);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11714 return 0;
11715}
11716
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11717/* This function replace the HTTP status code and the associated message. The
11718 * variable <status> contains the new status code. This function never fails.
11719 */
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11720void http_set_status(unsigned int status, const char *reason, struct stream *s)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11721{
11722 struct http_txn *txn = s->txn;
11723 char *cur_ptr, *cur_end;
11724 int delta;
11725 char *res;
11726 int c_l;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11727 const char *msg = reason;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11728 int msg_len;
11729
11730 chunk_reset(&trash);
11731
11732 res = ultoa_o(status, trash.str, trash.size);
11733 c_l = res - trash.str;
11734
11735 trash.str[c_l] = ' ';
11736 trash.len = c_l + 1;
11737
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11738 /* Do we have a custom reason format string? */
11739 if (msg == NULL)
11740 msg = get_reason(status);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11741 msg_len = strlen(msg);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11742 strncpy(&trash.str[trash.len], msg, trash.size - trash.len);
11743 trash.len += msg_len;
11744
11745 cur_ptr = s->res.buf->p + txn->rsp.sl.st.c;
11746 cur_end = s->res.buf->p + txn->rsp.sl.st.r + txn->rsp.sl.st.r_l;
11747
11748 /* commit changes and adjust message */
11749 delta = buffer_replace2(s->res.buf, cur_ptr, cur_end, trash.str, trash.len);
11750
11751 /* adjust res line offsets and lengths */
11752 txn->rsp.sl.st.r += c_l - txn->rsp.sl.st.c_l;
11753 txn->rsp.sl.st.c_l = c_l;
11754 txn->rsp.sl.st.r_l = msg_len;
11755
11756 delta = trash.len - (cur_end - cur_ptr);
11757 txn->rsp.sl.st.l += delta;
11758 txn->hdr_idx.v[0].len += delta;
11759 http_msg_move_end(&txn->rsp, delta);
11760}
11761
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11762/* This function executes one of the set-{method,path,query,uri} actions. It
11763 * builds a string in the trash from the specified format string. It finds
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]11764 * the action to be performed in <http.action>, previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11765 * parse_set_req_line(). The replacement action is excuted by the function
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]11766 * http_action_set_req_line(). It always returns ACT_RET_CONT. If an error
11767 * occurs the action is canceled, but the rule processing continue.
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11768 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11769enum act_return http_action_set_req_line(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11770 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11771{
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]11772 struct chunk *replace;
11773 enum act_return ret = ACT_RET_ERR;
11774
11775 replace = alloc_trash_chunk();
11776 if (!replace)
11777 goto leave;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11778
11779 /* If we have to create a query string, prepare a '?'. */
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11780 if (rule->arg.http.action == 2)
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]11781 replace->str[replace->len++] = '?';
11782 replace->len += build_logline(s, replace->str + replace->len, replace->size - replace->len,
11783 &rule->arg.http.logfmt);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11784
Dragan Dosen2ae327e2017-10-26 11:25:10 +0200[diff] [blame]11785 http_replace_req_line(rule->arg.http.action, replace->str, replace->len, px, s);
11786
11787 ret = ACT_RET_CONT;
11788
11789leave:
11790 free_trash_chunk(replace);
11791 return ret;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11792}
11793
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11794/* This function is just a compliant action wrapper for "set-status". */
11795enum act_return action_http_set_status(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11796 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11797{
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11798 http_set_status(rule->arg.status.code, rule->arg.status.reason, s);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11799 return ACT_RET_CONT;
11800}
11801
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11802/* parse an http-request action among :
11803 * set-method
11804 * set-path
11805 * set-query
11806 * set-uri
11807 *
11808 * All of them accept a single argument of type string representing a log-format.
11809 * The resulting rule makes use of arg->act.p[0..1] to store the log-format list
11810 * 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]11811 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11812 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11813enum act_parse_ret parse_set_req_line(const char **args, int *orig_arg, struct proxy *px,
11814 struct act_rule *rule, char **err)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11815{
11816 int cur_arg = *orig_arg;
11817
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]11818 rule->action = ACT_CUSTOM;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11819
11820 switch (args[0][4]) {
11821 case 'm' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11822 rule->arg.http.action = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11823 rule->action_ptr = http_action_set_req_line;
11824 break;
11825 case 'p' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11826 rule->arg.http.action = 1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11827 rule->action_ptr = http_action_set_req_line;
11828 break;
11829 case 'q' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11830 rule->arg.http.action = 2;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11831 rule->action_ptr = http_action_set_req_line;
11832 break;
11833 case 'u' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11834 rule->arg.http.action = 3;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11835 rule->action_ptr = http_action_set_req_line;
11836 break;
11837 default:
11838 memprintf(err, "internal error: unhandled action '%s'", args[0]);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11839 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11840 }
11841
11842 if (!*args[cur_arg] ||
11843 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
11844 memprintf(err, "expects exactly 1 argument <format>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11845 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11846 }
11847
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11848 LIST_INIT(&rule->arg.http.logfmt);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11849 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]11850 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]11851 (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]11852 return ACT_RET_PRS_ERR;
11853 }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11854
11855 (*orig_arg)++;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11856 return ACT_RET_PRS_OK;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11857}
11858
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11859/* parse set-status action:
11860 * This action accepts a single argument of type int representing
11861 * an http status code. It returns ACT_RET_PRS_OK on success,
11862 * ACT_RET_PRS_ERR on error.
11863 */
11864enum act_parse_ret parse_http_set_status(const char **args, int *orig_arg, struct proxy *px,
11865 struct act_rule *rule, char **err)
11866{
11867 char *error;
11868
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]11869 rule->action = ACT_CUSTOM;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11870 rule->action_ptr = action_http_set_status;
11871
11872 /* Check if an argument is available */
11873 if (!*args[*orig_arg]) {
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11874 memprintf(err, "expects 1 argument: <status>; or 3 arguments: <status> reason <fmt>");
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11875 return ACT_RET_PRS_ERR;
11876 }
11877
11878 /* convert status code as integer */
11879 rule->arg.status.code = strtol(args[*orig_arg], &error, 10);
11880 if (*error != '\0' || rule->arg.status.code < 100 || rule->arg.status.code > 999) {
11881 memprintf(err, "expects an integer status code between 100 and 999");
11882 return ACT_RET_PRS_ERR;
11883 }
11884
11885 (*orig_arg)++;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11886
11887 /* set custom reason string */
11888 rule->arg.status.reason = NULL; // If null, we use the default reason for the status code.
11889 if (*args[*orig_arg] && strcmp(args[*orig_arg], "reason") == 0 &&
11890 (*args[*orig_arg + 1] && strcmp(args[*orig_arg + 1], "if") != 0 && strcmp(args[*orig_arg + 1], "unless") != 0)) {
11891 (*orig_arg)++;
11892 rule->arg.status.reason = strdup(args[*orig_arg]);
11893 (*orig_arg)++;
11894 }
11895
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11896 return ACT_RET_PRS_OK;
11897}
11898
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11899/* This function executes the "capture" action. It executes a fetch expression,
11900 * turns the result into a string and puts it in a capture slot. It always
11901 * returns 1. If an error occurs the action is cancelled, but the rule
11902 * processing continues.
11903 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11904enum act_return http_action_req_capture(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11905 struct session *sess, struct stream *s, int flags)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11906{
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11907 struct sample *key;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]11908 struct cap_hdr *h = rule->arg.cap.hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11909 char **cap = s->req_cap;
11910 int len;
11911
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]11912 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]11913 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11914 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11915
11916 if (cap[h->index] == NULL)
11917 cap[h->index] = pool_alloc2(h->pool);
11918
11919 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11920 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11921
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11922 len = key->data.u.str.len;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11923 if (len > h->len)
11924 len = h->len;
11925
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11926 memcpy(cap[h->index], key->data.u.str.str, len);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11927 cap[h->index][len] = 0;
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}
11930
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11931/* This function executes the "capture" action and store the result in a
11932 * capture slot if exists. It executes a fetch expression, turns the result
11933 * into a string and puts it in a capture slot. It always returns 1. If an
11934 * error occurs the action is cancelled, but the rule processing continues.
11935 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11936enum 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]11937 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11938{
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11939 struct sample *key;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11940 struct cap_hdr *h;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11941 char **cap = s->req_cap;
11942 struct proxy *fe = strm_fe(s);
11943 int len;
11944 int i;
11945
11946 /* Look for the original configuration. */
11947 for (h = fe->req_cap, i = fe->nb_req_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]11948 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11949 i--, h = h->next);
11950 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11951 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11952
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]11953 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]11954 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11955 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11956
11957 if (cap[h->index] == NULL)
11958 cap[h->index] = pool_alloc2(h->pool);
11959
11960 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11961 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11962
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11963 len = key->data.u.str.len;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11964 if (len > h->len)
11965 len = h->len;
11966
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11967 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11968 cap[h->index][len] = 0;
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}
11971
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]11972/* Check an "http-request capture" action.
11973 *
11974 * The function returns 1 in success case, otherwise, it returns 0 and err is
11975 * filled.
11976 */
11977int check_http_req_capture(struct act_rule *rule, struct proxy *px, char **err)
11978{
11979 if (rule->arg.capid.idx >= px->nb_req_cap) {
11980 memprintf(err, "unable to find capture id '%d' referenced by http-request capture rule",
11981 rule->arg.capid.idx);
11982 return 0;
11983 }
11984
11985 return 1;
11986}
11987
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11988/* parse an "http-request capture" action. It takes a single argument which is
11989 * a sample fetch expression. It stores the expression into arg->act.p[0] and
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11990 * the allocated hdr_cap struct or the preallocated "id" into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11991 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11992 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11993enum act_parse_ret parse_http_req_capture(const char **args, int *orig_arg, struct proxy *px,
11994 struct act_rule *rule, char **err)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11995{
11996 struct sample_expr *expr;
11997 struct cap_hdr *hdr;
11998 int cur_arg;
Willy Tarreau3986ac12015-05-08 16:13:42 +0200[diff] [blame]11999 int len = 0;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12000
12001 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12002 if (strcmp(args[cur_arg], "if") == 0 ||
12003 strcmp(args[cur_arg], "unless") == 0)
12004 break;
12005
12006 if (cur_arg < *orig_arg + 3) {
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12007 memprintf(err, "expects <expression> [ 'len' <length> | id <idx> ]");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12008 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12009 }
12010
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12011 cur_arg = *orig_arg;
12012 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12013 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12014 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12015
12016 if (!(expr->fetch->val & SMP_VAL_FE_HRQ_HDR)) {
12017 memprintf(err,
12018 "fetch method '%s' extracts information from '%s', none of which is available here",
12019 args[cur_arg-1], sample_src_names(expr->fetch->use));
12020 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12021 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12022 }
12023
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12024 if (!args[cur_arg] || !*args[cur_arg]) {
12025 memprintf(err, "expects 'len or 'id'");
12026 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12027 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12028 }
12029
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12030 if (strcmp(args[cur_arg], "len") == 0) {
12031 cur_arg++;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12032
12033 if (!(px->cap & PR_CAP_FE)) {
12034 memprintf(err, "proxy '%s' has no frontend capability", px->id);
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
12038 proxy->conf.args.ctx = ARGC_CAP;
12039
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12040 if (!args[cur_arg]) {
12041 memprintf(err, "missing length value");
12042 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12043 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12044 }
12045 /* we copy the table name for now, it will be resolved later */
12046 len = atoi(args[cur_arg]);
12047 if (len <= 0) {
12048 memprintf(err, "length must be > 0");
12049 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12050 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12051 }
12052 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12053
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12054 if (!len) {
12055 memprintf(err, "a positive 'len' argument is mandatory");
12056 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12057 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12058 }
12059
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]12060 hdr = calloc(1, sizeof(*hdr));
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12061 hdr->next = px->req_cap;
12062 hdr->name = NULL; /* not a header capture */
12063 hdr->namelen = 0;
12064 hdr->len = len;
12065 hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED);
12066 hdr->index = px->nb_req_cap++;
12067
12068 px->req_cap = hdr;
12069 px->to_log |= LW_REQHDR;
12070
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12071 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12072 rule->action_ptr = http_action_req_capture;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12073 rule->check_ptr = check_http_req_capture;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12074 rule->arg.cap.expr = expr;
12075 rule->arg.cap.hdr = hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12076 }
12077
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12078 else if (strcmp(args[cur_arg], "id") == 0) {
12079 int id;
12080 char *error;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12081
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12082 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12083
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12084 if (!args[cur_arg]) {
12085 memprintf(err, "missing id value");
12086 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12087 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12088 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12089
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12090 id = strtol(args[cur_arg], &error, 10);
12091 if (*error != '\0') {
12092 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12093 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12094 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12095 }
12096 cur_arg++;
12097
12098 proxy->conf.args.ctx = ARGC_CAP;
12099
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12100 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12101 rule->action_ptr = http_action_req_capture_by_id;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12102 rule->check_ptr = check_http_req_capture;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12103 rule->arg.capid.expr = expr;
12104 rule->arg.capid.idx = id;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12105 }
12106
12107 else {
12108 memprintf(err, "expects 'len' or 'id', found '%s'", args[cur_arg]);
12109 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12110 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12111 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12112
12113 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12114 return ACT_RET_PRS_OK;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12115}
12116
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12117/* This function executes the "capture" action and store the result in a
12118 * capture slot if exists. It executes a fetch expression, turns the result
12119 * into a string and puts it in a capture slot. It always returns 1. If an
12120 * error occurs the action is cancelled, but the rule processing continues.
12121 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12122enum 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]12123 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12124{
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12125 struct sample *key;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12126 struct cap_hdr *h;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12127 char **cap = s->res_cap;
12128 struct proxy *fe = strm_fe(s);
12129 int len;
12130 int i;
12131
12132 /* Look for the original configuration. */
12133 for (h = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12134 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12135 i--, h = h->next);
12136 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12137 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12138
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12139 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]12140 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12141 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12142
12143 if (cap[h->index] == NULL)
12144 cap[h->index] = pool_alloc2(h->pool);
12145
12146 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12147 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12148
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12149 len = key->data.u.str.len;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12150 if (len > h->len)
12151 len = h->len;
12152
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12153 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12154 cap[h->index][len] = 0;
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}
12157
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12158/* Check an "http-response capture" action.
12159 *
12160 * The function returns 1 in success case, otherwise, it returns 0 and err is
12161 * filled.
12162 */
12163int check_http_res_capture(struct act_rule *rule, struct proxy *px, char **err)
12164{
12165 if (rule->arg.capid.idx >= px->nb_rsp_cap) {
12166 memprintf(err, "unable to find capture id '%d' referenced by http-response capture rule",
12167 rule->arg.capid.idx);
12168 return 0;
12169 }
12170
12171 return 1;
12172}
12173
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12174/* parse an "http-response capture" action. It takes a single argument which is
12175 * a sample fetch expression. It stores the expression into arg->act.p[0] and
12176 * the allocated hdr_cap struct od the preallocated id into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12177 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12178 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12179enum act_parse_ret parse_http_res_capture(const char **args, int *orig_arg, struct proxy *px,
12180 struct act_rule *rule, char **err)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12181{
12182 struct sample_expr *expr;
12183 int cur_arg;
12184 int id;
12185 char *error;
12186
12187 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12188 if (strcmp(args[cur_arg], "if") == 0 ||
12189 strcmp(args[cur_arg], "unless") == 0)
12190 break;
12191
12192 if (cur_arg < *orig_arg + 3) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12193 memprintf(err, "expects <expression> id <idx>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12194 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12195 }
12196
12197 cur_arg = *orig_arg;
12198 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12199 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12200 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12201
12202 if (!(expr->fetch->val & SMP_VAL_FE_HRS_HDR)) {
12203 memprintf(err,
12204 "fetch method '%s' extracts information from '%s', none of which is available here",
12205 args[cur_arg-1], sample_src_names(expr->fetch->use));
12206 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12207 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12208 }
12209
12210 if (!args[cur_arg] || !*args[cur_arg]) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12211 memprintf(err, "expects 'id'");
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12212 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12213 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12214 }
12215
12216 if (strcmp(args[cur_arg], "id") != 0) {
12217 memprintf(err, "expects 'id', found '%s'", args[cur_arg]);
12218 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12219 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12220 }
12221
12222 cur_arg++;
12223
12224 if (!args[cur_arg]) {
12225 memprintf(err, "missing id value");
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 id = strtol(args[cur_arg], &error, 10);
12231 if (*error != '\0') {
12232 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12233 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12234 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12235 }
12236 cur_arg++;
12237
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12238 proxy->conf.args.ctx = ARGC_CAP;
12239
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12240 rule->action = ACT_CUSTOM;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12241 rule->action_ptr = http_action_res_capture_by_id;
Christopher Faulet29730ba2017-09-18 15:26:32 +0200[diff] [blame]12242 rule->check_ptr = check_http_res_capture;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12243 rule->arg.capid.expr = expr;
12244 rule->arg.capid.idx = id;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12245
12246 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12247 return ACT_RET_PRS_OK;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12248}
12249
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12250/*
12251 * Return the struct http_req_action_kw associated to a keyword.
12252 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12253struct action_kw *action_http_req_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12254{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12255 return action_lookup(&http_req_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12256}
12257
12258/*
12259 * Return the struct http_res_action_kw associated to a keyword.
12260 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12261struct action_kw *action_http_res_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_res_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12264}
12265
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12266
12267/* "show errors" handler for the CLI. Returns 0 if wants to continue, 1 to stop
12268 * now.
12269 */
12270static int cli_parse_show_errors(char **args, struct appctx *appctx, void *private)
12271{
12272 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
12273 return 1;
12274
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12275 if (*args[2]) {
12276 struct proxy *px;
12277
12278 px = proxy_find_by_name(args[2], 0, 0);
12279 if (px)
12280 appctx->ctx.errors.iid = px->uuid;
12281 else
12282 appctx->ctx.errors.iid = atoi(args[2]);
12283
12284 if (!appctx->ctx.errors.iid) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +0200[diff] [blame]12285 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12286 appctx->ctx.cli.msg = "No such proxy.\n";
12287 appctx->st0 = CLI_ST_PRINT;
12288 return 1;
12289 }
12290 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12291 else
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12292 appctx->ctx.errors.iid = -1; // dump all proxies
12293
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12294 appctx->ctx.errors.flag = 0;
12295 if (strcmp(args[3], "request") == 0)
12296 appctx->ctx.errors.flag |= 4; // ignore response
12297 else if (strcmp(args[3], "response") == 0)
12298 appctx->ctx.errors.flag |= 2; // ignore request
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12299 appctx->ctx.errors.px = NULL;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12300 return 0;
12301}
12302
12303/* This function dumps all captured errors onto the stream interface's
12304 * read buffer. It returns 0 if the output buffer is full and it needs
12305 * to be called again, otherwise non-zero.
12306 */
12307static int cli_io_handler_show_errors(struct appctx *appctx)
12308{
12309 struct stream_interface *si = appctx->owner;
12310 extern const char *monthname[12];
12311
12312 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
12313 return 1;
12314
12315 chunk_reset(&trash);
12316
12317 if (!appctx->ctx.errors.px) {
12318 /* the function had not been called yet, let's prepare the
12319 * buffer for a response.
12320 */
12321 struct tm tm;
12322
12323 get_localtime(date.tv_sec, &tm);
12324 chunk_appendf(&trash, "Total events captured on [%02d/%s/%04d:%02d:%02d:%02d.%03d] : %u\n",
12325 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12326 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(date.tv_usec/1000),
12327 error_snapshot_id);
12328
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12329 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12330 /* Socket buffer full. Let's try again later from the same point */
12331 si_applet_cant_put(si);
12332 return 0;
12333 }
12334
12335 appctx->ctx.errors.px = proxy;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12336 appctx->ctx.errors.bol = 0;
12337 appctx->ctx.errors.ptr = -1;
12338 }
12339
12340 /* we have two inner loops here, one for the proxy, the other one for
12341 * the buffer.
12342 */
12343 while (appctx->ctx.errors.px) {
12344 struct error_snapshot *es;
12345
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12346 if ((appctx->ctx.errors.flag & 1) == 0) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12347 es = &appctx->ctx.errors.px->invalid_req;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12348 if (appctx->ctx.errors.flag & 2) // skip req
12349 goto next;
12350 }
12351 else {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12352 es = &appctx->ctx.errors.px->invalid_rep;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12353 if (appctx->ctx.errors.flag & 4) // skip resp
12354 goto next;
12355 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12356
12357 if (!es->when.tv_sec)
12358 goto next;
12359
12360 if (appctx->ctx.errors.iid >= 0 &&
12361 appctx->ctx.errors.px->uuid != appctx->ctx.errors.iid &&
12362 es->oe->uuid != appctx->ctx.errors.iid)
12363 goto next;
12364
12365 if (appctx->ctx.errors.ptr < 0) {
12366 /* just print headers now */
12367
12368 char pn[INET6_ADDRSTRLEN];
12369 struct tm tm;
12370 int port;
12371
12372 get_localtime(es->when.tv_sec, &tm);
12373 chunk_appendf(&trash, " \n[%02d/%s/%04d:%02d:%02d:%02d.%03d]",
12374 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12375 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(es->when.tv_usec/1000));
12376
12377 switch (addr_to_str(&es->src, pn, sizeof(pn))) {
12378 case AF_INET:
12379 case AF_INET6:
12380 port = get_host_port(&es->src);
12381 break;
12382 default:
12383 port = 0;
12384 }
12385
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12386 switch (appctx->ctx.errors.flag & 1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12387 case 0:
12388 chunk_appendf(&trash,
12389 " frontend %s (#%d): invalid request\n"
12390 " backend %s (#%d)",
12391 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12392 (es->oe->cap & PR_CAP_BE) ? es->oe->id : "<NONE>",
12393 (es->oe->cap & PR_CAP_BE) ? es->oe->uuid : -1);
12394 break;
12395 case 1:
12396 chunk_appendf(&trash,
12397 " backend %s (#%d): invalid response\n"
12398 " frontend %s (#%d)",
12399 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12400 es->oe->id, es->oe->uuid);
12401 break;
12402 }
12403
12404 chunk_appendf(&trash,
12405 ", server %s (#%d), event #%u\n"
12406 " src %s:%d, session #%d, session flags 0x%08x\n"
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]12407 " HTTP msg state %s(%d), msg flags 0x%08x, tx flags 0x%08x\n"
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12408 " HTTP chunk len %lld bytes, HTTP body len %lld bytes\n"
12409 " buffer flags 0x%08x, out %d bytes, total %lld bytes\n"
12410 " pending %d bytes, wrapping at %d, error at position %d:\n \n",
12411 es->srv ? es->srv->id : "<NONE>", es->srv ? es->srv->puid : -1,
12412 es->ev_id,
12413 pn, port, es->sid, es->s_flags,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]12414 h1_msg_state_str(es->state), es->state, es->m_flags, es->t_flags,
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12415 es->m_clen, es->m_blen,
12416 es->b_flags, es->b_out, es->b_tot,
12417 es->len, es->b_wrap, es->pos);
12418
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12419 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12420 /* Socket buffer full. Let's try again later from the same point */
12421 si_applet_cant_put(si);
12422 return 0;
12423 }
12424 appctx->ctx.errors.ptr = 0;
12425 appctx->ctx.errors.sid = es->sid;
12426 }
12427
12428 if (appctx->ctx.errors.sid != es->sid) {
12429 /* the snapshot changed while we were dumping it */
12430 chunk_appendf(&trash,
12431 " WARNING! update detected on this snapshot, dump interrupted. Please re-check!\n");
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12432 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12433 si_applet_cant_put(si);
12434 return 0;
12435 }
12436 goto next;
12437 }
12438
12439 /* OK, ptr >= 0, so we have to dump the current line */
12440 while (es->buf && appctx->ctx.errors.ptr < es->len && appctx->ctx.errors.ptr < global.tune.bufsize) {
12441 int newptr;
12442 int newline;
12443
12444 newline = appctx->ctx.errors.bol;
12445 newptr = dump_text_line(&trash, es->buf, global.tune.bufsize, es->len, &newline, appctx->ctx.errors.ptr);
12446 if (newptr == appctx->ctx.errors.ptr)
12447 return 0;
12448
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12449 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12450 /* Socket buffer full. Let's try again later from the same point */
12451 si_applet_cant_put(si);
12452 return 0;
12453 }
12454 appctx->ctx.errors.ptr = newptr;
12455 appctx->ctx.errors.bol = newline;
12456 };
12457 next:
12458 appctx->ctx.errors.bol = 0;
12459 appctx->ctx.errors.ptr = -1;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12460 appctx->ctx.errors.flag ^= 1;
12461 if (!(appctx->ctx.errors.flag & 1))
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12462 appctx->ctx.errors.px = appctx->ctx.errors.px->next;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12463 }
12464
12465 /* dump complete */
12466 return 1;
12467}
12468
12469/* register cli keywords */
12470static struct cli_kw_list cli_kws = {{ },{
12471 { { "show", "errors", NULL },
12472 "show errors : report last request and response errors for each proxy",
12473 cli_parse_show_errors, cli_io_handler_show_errors, NULL,
12474 },
12475 {{},}
12476}};
12477
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12478/************************************************************************/
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12479/* All supported ACL keywords must be declared here. */
12480/************************************************************************/
12481
12482/* Note: must not be declared <const> as its list will be overwritten.
12483 * Please take care of keeping this list alphabetically sorted.
12484 */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12485static struct acl_kw_list acl_kws = {ILH, {
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12486 { "base", "base", PAT_MATCH_STR },
12487 { "base_beg", "base", PAT_MATCH_BEG },
12488 { "base_dir", "base", PAT_MATCH_DIR },
12489 { "base_dom", "base", PAT_MATCH_DOM },
12490 { "base_end", "base", PAT_MATCH_END },
12491 { "base_len", "base", PAT_MATCH_LEN },
12492 { "base_reg", "base", PAT_MATCH_REG },
12493 { "base_sub", "base", PAT_MATCH_SUB },
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]12494
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12495 { "cook", "req.cook", PAT_MATCH_STR },
12496 { "cook_beg", "req.cook", PAT_MATCH_BEG },
12497 { "cook_dir", "req.cook", PAT_MATCH_DIR },
12498 { "cook_dom", "req.cook", PAT_MATCH_DOM },
12499 { "cook_end", "req.cook", PAT_MATCH_END },
12500 { "cook_len", "req.cook", PAT_MATCH_LEN },
12501 { "cook_reg", "req.cook", PAT_MATCH_REG },
12502 { "cook_sub", "req.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12503
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12504 { "hdr", "req.hdr", PAT_MATCH_STR },
12505 { "hdr_beg", "req.hdr", PAT_MATCH_BEG },
12506 { "hdr_dir", "req.hdr", PAT_MATCH_DIR },
12507 { "hdr_dom", "req.hdr", PAT_MATCH_DOM },
12508 { "hdr_end", "req.hdr", PAT_MATCH_END },
12509 { "hdr_len", "req.hdr", PAT_MATCH_LEN },
12510 { "hdr_reg", "req.hdr", PAT_MATCH_REG },
12511 { "hdr_sub", "req.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12512
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12513 /* these two declarations uses strings with list storage (in place
12514 * of tree storage). The basic match is PAT_MATCH_STR, but the indexation
12515 * and delete functions are relative to the list management. The parse
12516 * and match method are related to the corresponding fetch methods. This
12517 * is very particular ACL declaration mode.
12518 */
12519 { "http_auth_group", NULL, PAT_MATCH_STR, NULL, pat_idx_list_str, pat_del_list_ptr, NULL, pat_match_auth },
12520 { "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]12521
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12522 { "path", "path", PAT_MATCH_STR },
12523 { "path_beg", "path", PAT_MATCH_BEG },
12524 { "path_dir", "path", PAT_MATCH_DIR },
12525 { "path_dom", "path", PAT_MATCH_DOM },
12526 { "path_end", "path", PAT_MATCH_END },
12527 { "path_len", "path", PAT_MATCH_LEN },
12528 { "path_reg", "path", PAT_MATCH_REG },
12529 { "path_sub", "path", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12530
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12531 { "req_ver", "req.ver", PAT_MATCH_STR },
12532 { "resp_ver", "res.ver", PAT_MATCH_STR },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12533
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12534 { "scook", "res.cook", PAT_MATCH_STR },
12535 { "scook_beg", "res.cook", PAT_MATCH_BEG },
12536 { "scook_dir", "res.cook", PAT_MATCH_DIR },
12537 { "scook_dom", "res.cook", PAT_MATCH_DOM },
12538 { "scook_end", "res.cook", PAT_MATCH_END },
12539 { "scook_len", "res.cook", PAT_MATCH_LEN },
12540 { "scook_reg", "res.cook", PAT_MATCH_REG },
12541 { "scook_sub", "res.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12542
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12543 { "shdr", "res.hdr", PAT_MATCH_STR },
12544 { "shdr_beg", "res.hdr", PAT_MATCH_BEG },
12545 { "shdr_dir", "res.hdr", PAT_MATCH_DIR },
12546 { "shdr_dom", "res.hdr", PAT_MATCH_DOM },
12547 { "shdr_end", "res.hdr", PAT_MATCH_END },
12548 { "shdr_len", "res.hdr", PAT_MATCH_LEN },
12549 { "shdr_reg", "res.hdr", PAT_MATCH_REG },
12550 { "shdr_sub", "res.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12551
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12552 { "url", "url", PAT_MATCH_STR },
12553 { "url_beg", "url", PAT_MATCH_BEG },
12554 { "url_dir", "url", PAT_MATCH_DIR },
12555 { "url_dom", "url", PAT_MATCH_DOM },
12556 { "url_end", "url", PAT_MATCH_END },
12557 { "url_len", "url", PAT_MATCH_LEN },
12558 { "url_reg", "url", PAT_MATCH_REG },
12559 { "url_sub", "url", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12560
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12561 { "urlp", "urlp", PAT_MATCH_STR },
12562 { "urlp_beg", "urlp", PAT_MATCH_BEG },
12563 { "urlp_dir", "urlp", PAT_MATCH_DIR },
12564 { "urlp_dom", "urlp", PAT_MATCH_DOM },
12565 { "urlp_end", "urlp", PAT_MATCH_END },
12566 { "urlp_len", "urlp", PAT_MATCH_LEN },
12567 { "urlp_reg", "urlp", PAT_MATCH_REG },
12568 { "urlp_sub", "urlp", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12569
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100[diff] [blame]12570 { /* END */ },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12571}};
12572
12573/************************************************************************/
12574/* All supported pattern keywords must be declared here. */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12575/************************************************************************/
12576/* Note: must not be declared <const> as its list will be overwritten */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12577static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12578 { "base", smp_fetch_base, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12579 { "base32", smp_fetch_base32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12580 { "base32+src", smp_fetch_base32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12581
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]12582 /* capture are allocated and are permanent in the stream */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12583 { "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]12584
12585 /* retrieve these captures from the HTTP logs */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12586 { "capture.req.method", smp_fetch_capture_req_method, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12587 { "capture.req.uri", smp_fetch_capture_req_uri, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12588 { "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]12589
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12590 { "capture.res.hdr", smp_fetch_capture_header_res, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRSHP },
12591 { "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]12592
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12593 /* cookie is valid in both directions (eg: for "stick ...") but cook*
12594 * are only here to match the ACL's name, are request-only and are used
12595 * for ACL compatibility only.
12596 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12597 { "cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12598 { "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]12599 { "cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12600 { "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]12601
12602 /* hdr is valid in both directions (eg: for "stick ...") but hdr_* are
12603 * only here to match the ACL's name, are request-only and are used for
12604 * ACL compatibility only.
12605 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12606 { "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]12607 { "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]12608 { "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]12609 { "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]12610
Willy Tarreau0a0daec2013-04-02 22:44:58 +0200[diff] [blame]12611 { "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]12612 { "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]12613 { "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]12614 { "method", smp_fetch_meth, 0, NULL, SMP_T_METH, SMP_USE_HRQHP },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12615 { "path", smp_fetch_path, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]12616 { "query", smp_fetch_query, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12617
12618 /* HTTP protocol on the request path */
12619 { "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]12620 { "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]12621
12622 /* HTTP version on the request path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12623 { "req.ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
12624 { "req_ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12625
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]12626 { "req.body", smp_fetch_body, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12627 { "req.body_len", smp_fetch_body_len, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
12628 { "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]12629 { "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]12630
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]12631 { "req.hdrs", smp_fetch_hdrs, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]12632 { "req.hdrs_bin", smp_fetch_hdrs_bin, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12633
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12634 /* HTTP version on the response path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12635 { "res.ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
12636 { "resp_ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12637
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12638 /* 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]12639 { "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]12640 { "req.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12641 { "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]12642
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12643 { "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]12644 { "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]12645 { "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]12646 { "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]12647 { "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]12648 { "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]12649 { "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]12650
12651 /* 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]12652 { "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]12653 { "res.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12654 { "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]12655
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12656 { "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]12657 { "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]12658 { "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]12659 { "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]12660 { "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]12661 { "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]12662 { "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]12663
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12664 /* scook is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12665 { "scook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12666 { "scook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12667 { "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]12668 { "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]12669
12670 /* shdr is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12671 { "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]12672 { "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]12673 { "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]12674 { "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]12675
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12676 { "status", smp_fetch_stcode, 0, NULL, SMP_T_SINT, SMP_USE_HRSHP },
Thierry Fournier0e00dca2016-04-07 15:47:40 +0200[diff] [blame]12677 { "unique-id", smp_fetch_uniqueid, 0, NULL, SMP_T_STR, SMP_SRC_L4SRV },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12678 { "url", smp_fetch_url, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12679 { "url32", smp_fetch_url32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]12680 { "url32+src", smp_fetch_url32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12681 { "url_ip", smp_fetch_url_ip, 0, NULL, SMP_T_IPV4, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12682 { "url_port", smp_fetch_url_port, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]12683 { "url_param", smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12684 { "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]12685 { "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]12686 { /* END */ },
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12687}};
12688
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12689
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12690/************************************************************************/
12691/* All supported converter keywords must be declared here. */
12692/************************************************************************/
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12693/* Note: must not be declared <const> as its list will be overwritten */
12694static struct sample_conv_kw_list sample_conv_kws = {ILH, {
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12695 { "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]12696 { "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]12697 { "capture-req", smp_conv_req_capture, ARG1(1,SINT), NULL, SMP_T_STR, SMP_T_STR},
12698 { "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]12699 { "url_dec", sample_conv_url_dec, 0, NULL, SMP_T_STR, SMP_T_STR},
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12700 { NULL, NULL, 0, 0, 0 },
12701}};
12702
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12703
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12704/************************************************************************/
12705/* All supported http-request action keywords must be declared here. */
12706/************************************************************************/
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12707struct action_kw_list http_req_actions = {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12708 .kw = {
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12709 { "capture", parse_http_req_capture },
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12710 { "set-method", parse_set_req_line },
12711 { "set-path", parse_set_req_line },
12712 { "set-query", parse_set_req_line },
12713 { "set-uri", parse_set_req_line },
Willy Tarreaucb703b02015-04-03 09:52:01 +0200[diff] [blame]12714 { NULL, NULL }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12715 }
12716};
12717
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12718struct action_kw_list http_res_actions = {
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12719 .kw = {
12720 { "capture", parse_http_res_capture },
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12721 { "set-status", parse_http_set_status },
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12722 { NULL, NULL }
12723 }
12724};
12725
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12726__attribute__((constructor))
12727static void __http_protocol_init(void)
12728{
12729 acl_register_keywords(&acl_kws);
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]12730 sample_register_fetches(&sample_fetch_keywords);
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12731 sample_register_convs(&sample_conv_kws);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12732 http_req_keywords_register(&http_req_actions);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12733 http_res_keywords_register(&http_res_actions);
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12734 cli_register_kw(&cli_kws);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12735}
12736
12737
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]12738/*
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]12739 * Local variables:
12740 * c-indent-level: 8
12741 * c-basic-offset: 8
12742 * End:
12743 */