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git01.mediatek.com / haproxy / 4a53bfdc1de46c78a23eabdefc4b418cff7d0403 / . / src / proto_http.c
blob: 668663179cf23c8ffcb7742880038857cccea52d [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>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]42#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]43#include <types/global.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]44
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]45#include <proto/acl.h>
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]46#include <proto/action.h>
Willy Tarreau61612d42012-04-19 18:42:05 +0200[diff] [blame]47#include <proto/arg.h>
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]48#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]49#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200[diff] [blame]50#include <proto/channel.h>
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]51#include <proto/checks.h>
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]52#include <proto/compression.h>
Willy Tarreau91861262007-10-17 17:06:05 +0200[diff] [blame]53#include <proto/dumpstats.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]54#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]55#include <proto/filters.h>
Willy Tarreau03fa5df2010-05-24 21:02:37 +0200[diff] [blame]56#include <proto/frontend.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]57#include <proto/log.h>
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]58#include <proto/hdr_idx.h>
Thierry FOURNIERed66c292013-11-28 11:05:19 +0100[diff] [blame]59#include <proto/pattern.h>
Willy Tarreaub6866442008-07-14 23:54:42 +0200[diff] [blame]60#include <proto/proto_tcp.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]61#include <proto/proto_http.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +0100[diff] [blame]62#include <proto/proxy.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]63#include <proto/queue.h>
Willy Tarreaucd3b0942012-04-27 21:52:18 +0200[diff] [blame]64#include <proto/sample.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +0100[diff] [blame]65#include <proto/server.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]66#include <proto/stream.h>
Willy Tarreaucff64112008-11-03 06:26:53 +0100[diff] [blame]67#include <proto/stream_interface.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]68#include <proto/task.h>
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]69#include <proto/pattern.h>
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]70#include <proto/vars.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]71
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]72const char HTTP_100[] =
73 "HTTP/1.1 100 Continue\r\n\r\n";
74
75const struct chunk http_100_chunk = {
76 .str = (char *)&HTTP_100,
77 .len = sizeof(HTTP_100)-1
78};
79
Willy Tarreaua9679ac2010-01-03 17:32:57 +0100[diff] [blame]80/* Warning: no "connection" header is provided with the 3xx messages below */
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200[diff] [blame]81const char *HTTP_301 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]82 "HTTP/1.1 301 Moved Permanently\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]83 "Content-length: 0\r\n"
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200[diff] [blame]84 "Location: "; /* not terminated since it will be concatenated with the URL */
85
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]86const char *HTTP_302 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]87 "HTTP/1.1 302 Found\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]88 "Cache-Control: no-cache\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]89 "Content-length: 0\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]90 "Location: "; /* not terminated since it will be concatenated with the URL */
91
92/* same as 302 except that the browser MUST retry with the GET method */
93const char *HTTP_303 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]94 "HTTP/1.1 303 See Other\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]95 "Cache-Control: no-cache\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]96 "Content-length: 0\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]97 "Location: "; /* not terminated since it will be concatenated with the URL */
98
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]99
100/* same as 302 except that the browser MUST retry with the same method */
101const char *HTTP_307 =
102 "HTTP/1.1 307 Temporary Redirect\r\n"
103 "Cache-Control: no-cache\r\n"
104 "Content-length: 0\r\n"
105 "Location: "; /* not terminated since it will be concatenated with the URL */
106
107/* same as 301 except that the browser MUST retry with the same method */
108const char *HTTP_308 =
109 "HTTP/1.1 308 Permanent Redirect\r\n"
110 "Content-length: 0\r\n"
111 "Location: "; /* not terminated since it will be concatenated with the URL */
112
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]113/* Warning: this one is an sprintf() fmt string, with <realm> as its only argument */
114const char *HTTP_401_fmt =
115 "HTTP/1.0 401 Unauthorized\r\n"
116 "Cache-Control: no-cache\r\n"
117 "Connection: close\r\n"
Willy Tarreau791d66d2006-07-08 16:53:38 +0200[diff] [blame]118 "Content-Type: text/html\r\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]119 "WWW-Authenticate: Basic realm=\"%s\"\r\n"
120 "\r\n"
121 "<html><body><h1>401 Unauthorized</h1>\nYou need a valid user and password to access this content.\n</body></html>\n";
122
Willy Tarreau844a7e72010-01-31 21:46:18 +0100[diff] [blame]123const char *HTTP_407_fmt =
124 "HTTP/1.0 407 Unauthorized\r\n"
125 "Cache-Control: no-cache\r\n"
126 "Connection: close\r\n"
127 "Content-Type: text/html\r\n"
128 "Proxy-Authenticate: Basic realm=\"%s\"\r\n"
129 "\r\n"
Godbach1f1fae62014-12-17 16:32:05 +0800[diff] [blame]130 "<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]131
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]132
133const int http_err_codes[HTTP_ERR_SIZE] = {
Willy Tarreauae94d4d2011-05-11 16:28:49 +0200[diff] [blame]134 [HTTP_ERR_200] = 200, /* used by "monitor-uri" */
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]135 [HTTP_ERR_400] = 400,
136 [HTTP_ERR_403] = 403,
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]137 [HTTP_ERR_405] = 405,
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]138 [HTTP_ERR_408] = 408,
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]139 [HTTP_ERR_429] = 429,
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]140 [HTTP_ERR_500] = 500,
141 [HTTP_ERR_502] = 502,
142 [HTTP_ERR_503] = 503,
143 [HTTP_ERR_504] = 504,
144};
145
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]146static const char *http_err_msgs[HTTP_ERR_SIZE] = {
Willy Tarreauae94d4d2011-05-11 16:28:49 +0200[diff] [blame]147 [HTTP_ERR_200] =
148 "HTTP/1.0 200 OK\r\n"
149 "Cache-Control: no-cache\r\n"
150 "Connection: close\r\n"
151 "Content-Type: text/html\r\n"
152 "\r\n"
153 "<html><body><h1>200 OK</h1>\nService ready.\n</body></html>\n",
154
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]155 [HTTP_ERR_400] =
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]156 "HTTP/1.0 400 Bad request\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]157 "Cache-Control: no-cache\r\n"
158 "Connection: close\r\n"
159 "Content-Type: text/html\r\n"
160 "\r\n"
161 "<html><body><h1>400 Bad request</h1>\nYour browser sent an invalid request.\n</body></html>\n",
162
163 [HTTP_ERR_403] =
164 "HTTP/1.0 403 Forbidden\r\n"
165 "Cache-Control: no-cache\r\n"
166 "Connection: close\r\n"
167 "Content-Type: text/html\r\n"
168 "\r\n"
169 "<html><body><h1>403 Forbidden</h1>\nRequest forbidden by administrative rules.\n</body></html>\n",
170
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]171 [HTTP_ERR_405] =
172 "HTTP/1.0 405 Method Not Allowed\r\n"
173 "Cache-Control: no-cache\r\n"
174 "Connection: close\r\n"
175 "Content-Type: text/html\r\n"
176 "\r\n"
177 "<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",
178
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]179 [HTTP_ERR_408] =
180 "HTTP/1.0 408 Request Time-out\r\n"
181 "Cache-Control: no-cache\r\n"
182 "Connection: close\r\n"
183 "Content-Type: text/html\r\n"
184 "\r\n"
185 "<html><body><h1>408 Request Time-out</h1>\nYour browser didn't send a complete request in time.\n</body></html>\n",
186
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]187 [HTTP_ERR_429] =
188 "HTTP/1.0 429 Too Many Requests\r\n"
189 "Cache-Control: no-cache\r\n"
190 "Connection: close\r\n"
191 "Content-Type: text/html\r\n"
192 "\r\n"
193 "<html><body><h1>429 Too Many Requests</h1>\nYou have sent too many requests in a given amount of time.\n</body></html>\n",
194
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]195 [HTTP_ERR_500] =
196 "HTTP/1.0 500 Server Error\r\n"
197 "Cache-Control: no-cache\r\n"
198 "Connection: close\r\n"
199 "Content-Type: text/html\r\n"
200 "\r\n"
201 "<html><body><h1>500 Server Error</h1>\nAn internal server error occured.\n</body></html>\n",
202
203 [HTTP_ERR_502] =
204 "HTTP/1.0 502 Bad Gateway\r\n"
205 "Cache-Control: no-cache\r\n"
206 "Connection: close\r\n"
207 "Content-Type: text/html\r\n"
208 "\r\n"
209 "<html><body><h1>502 Bad Gateway</h1>\nThe server returned an invalid or incomplete response.\n</body></html>\n",
210
211 [HTTP_ERR_503] =
212 "HTTP/1.0 503 Service Unavailable\r\n"
213 "Cache-Control: no-cache\r\n"
214 "Connection: close\r\n"
215 "Content-Type: text/html\r\n"
216 "\r\n"
217 "<html><body><h1>503 Service Unavailable</h1>\nNo server is available to handle this request.\n</body></html>\n",
218
219 [HTTP_ERR_504] =
220 "HTTP/1.0 504 Gateway Time-out\r\n"
221 "Cache-Control: no-cache\r\n"
222 "Connection: close\r\n"
223 "Content-Type: text/html\r\n"
224 "\r\n"
225 "<html><body><h1>504 Gateway Time-out</h1>\nThe server didn't respond in time.\n</body></html>\n",
226
227};
228
Cyril Bonté19979e12012-04-04 12:57:21 +0200[diff] [blame]229/* status codes available for the stats admin page (strictly 4 chars length) */
230const char *stat_status_codes[STAT_STATUS_SIZE] = {
231 [STAT_STATUS_DENY] = "DENY",
232 [STAT_STATUS_DONE] = "DONE",
233 [STAT_STATUS_ERRP] = "ERRP",
234 [STAT_STATUS_EXCD] = "EXCD",
235 [STAT_STATUS_NONE] = "NONE",
236 [STAT_STATUS_PART] = "PART",
237 [STAT_STATUS_UNKN] = "UNKN",
238};
239
240
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]241/* List head of all known action keywords for "http-request" */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]242struct action_kw_list http_req_keywords = {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]243 .list = LIST_HEAD_INIT(http_req_keywords.list)
244};
245
246/* List head of all known action keywords for "http-response" */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]247struct action_kw_list http_res_keywords = {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]248 .list = LIST_HEAD_INIT(http_res_keywords.list)
249};
250
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]251/* We must put the messages here since GCC cannot initialize consts depending
252 * on strlen().
253 */
254struct chunk http_err_chunks[HTTP_ERR_SIZE];
255
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]256/* this struct is used between calls to smp_fetch_hdr() or smp_fetch_cookie() */
257static struct hdr_ctx static_hdr_ctx;
258
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]259#define FD_SETS_ARE_BITFIELDS
260#ifdef FD_SETS_ARE_BITFIELDS
261/*
262 * This map is used with all the FD_* macros to check whether a particular bit
263 * is set or not. Each bit represents an ACSII code. FD_SET() sets those bytes
264 * which should be encoded. When FD_ISSET() returns non-zero, it means that the
265 * byte should be encoded. Be careful to always pass bytes from 0 to 255
266 * exclusively to the macros.
267 */
268fd_set hdr_encode_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
269fd_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]270fd_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]271
272#else
273#error "Check if your OS uses bitfields for fd_sets"
274#endif
275
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]276static 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]277
David Carlier7365f7d2016-04-04 11:54:42 +0100[diff] [blame]278static inline int http_msg_forward_body(struct stream *s, struct http_msg *msg);
279static inline int http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]280
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]281/* This function returns a reason associated with the HTTP status.
282 * This function never fails, a message is always returned.
283 */
284const char *get_reason(unsigned int status)
285{
286 switch (status) {
287 case 100: return "Continue";
288 case 101: return "Switching Protocols";
289 case 102: return "Processing";
290 case 200: return "OK";
291 case 201: return "Created";
292 case 202: return "Accepted";
293 case 203: return "Non-Authoritative Information";
294 case 204: return "No Content";
295 case 205: return "Reset Content";
296 case 206: return "Partial Content";
297 case 207: return "Multi-Status";
298 case 210: return "Content Different";
299 case 226: return "IM Used";
300 case 300: return "Multiple Choices";
301 case 301: return "Moved Permanently";
302 case 302: return "Moved Temporarily";
303 case 303: return "See Other";
304 case 304: return "Not Modified";
305 case 305: return "Use Proxy";
306 case 307: return "Temporary Redirect";
307 case 308: return "Permanent Redirect";
308 case 310: return "Too many Redirects";
309 case 400: return "Bad Request";
310 case 401: return "Unauthorized";
311 case 402: return "Payment Required";
312 case 403: return "Forbidden";
313 case 404: return "Not Found";
314 case 405: return "Method Not Allowed";
315 case 406: return "Not Acceptable";
316 case 407: return "Proxy Authentication Required";
317 case 408: return "Request Time-out";
318 case 409: return "Conflict";
319 case 410: return "Gone";
320 case 411: return "Length Required";
321 case 412: return "Precondition Failed";
322 case 413: return "Request Entity Too Large";
323 case 414: return "Request-URI Too Long";
324 case 415: return "Unsupported Media Type";
325 case 416: return "Requested range unsatisfiable";
326 case 417: return "Expectation failed";
327 case 418: return "I'm a teapot";
328 case 422: return "Unprocessable entity";
329 case 423: return "Locked";
330 case 424: return "Method failure";
331 case 425: return "Unordered Collection";
332 case 426: return "Upgrade Required";
333 case 428: return "Precondition Required";
334 case 429: return "Too Many Requests";
335 case 431: return "Request Header Fields Too Large";
336 case 449: return "Retry With";
337 case 450: return "Blocked by Windows Parental Controls";
338 case 451: return "Unavailable For Legal Reasons";
339 case 456: return "Unrecoverable Error";
340 case 499: return "client has closed connection";
341 case 500: return "Internal Server Error";
342 case 501: return "Not Implemented";
343 case 502: return "Bad Gateway ou Proxy Error";
344 case 503: return "Service Unavailable";
345 case 504: return "Gateway Time-out";
346 case 505: return "HTTP Version not supported";
347 case 506: return "Variant also negociate";
348 case 507: return "Insufficient storage";
349 case 508: return "Loop detected";
350 case 509: return "Bandwidth Limit Exceeded";
351 case 510: return "Not extended";
352 case 511: return "Network authentication required";
353 case 520: return "Web server is returning an unknown error";
354 default:
355 switch (status) {
356 case 100 ... 199: return "Informational";
357 case 200 ... 299: return "Success";
358 case 300 ... 399: return "Redirection";
359 case 400 ... 499: return "Client Error";
360 case 500 ... 599: return "Server Error";
361 default: return "Other";
362 }
363 }
364}
365
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]366void init_proto_http()
367{
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]368 int i;
369 char *tmp;
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]370 int msg;
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]371
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]372 for (msg = 0; msg < HTTP_ERR_SIZE; msg++) {
373 if (!http_err_msgs[msg]) {
374 Alert("Internal error: no message defined for HTTP return code %d. Aborting.\n", msg);
375 abort();
376 }
377
378 http_err_chunks[msg].str = (char *)http_err_msgs[msg];
379 http_err_chunks[msg].len = strlen(http_err_msgs[msg]);
380 }
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]381
382 /* initialize the log header encoding map : '{|}"#' should be encoded with
383 * '#' as prefix, as well as non-printable characters ( <32 or >= 127 ).
384 * URL encoding only requires '"', '#' to be encoded as well as non-
385 * printable characters above.
386 */
387 memset(hdr_encode_map, 0, sizeof(hdr_encode_map));
388 memset(url_encode_map, 0, sizeof(url_encode_map));
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]389 memset(http_encode_map, 0, sizeof(url_encode_map));
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]390 for (i = 0; i < 32; i++) {
391 FD_SET(i, hdr_encode_map);
392 FD_SET(i, url_encode_map);
393 }
394 for (i = 127; i < 256; i++) {
395 FD_SET(i, hdr_encode_map);
396 FD_SET(i, url_encode_map);
397 }
398
399 tmp = "\"#{|}";
400 while (*tmp) {
401 FD_SET(*tmp, hdr_encode_map);
402 tmp++;
403 }
404
405 tmp = "\"#";
406 while (*tmp) {
407 FD_SET(*tmp, url_encode_map);
408 tmp++;
409 }
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]410
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]411 /* initialize the http header encoding map. The draft httpbis define the
412 * header content as:
413 *
414 * HTTP-message = start-line
415 * *( header-field CRLF )
416 * CRLF
417 * [ message-body ]
418 * header-field = field-name ":" OWS field-value OWS
419 * field-value = *( field-content / obs-fold )
420 * field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
421 * obs-fold = CRLF 1*( SP / HTAB )
422 * field-vchar = VCHAR / obs-text
423 * VCHAR = %x21-7E
424 * obs-text = %x80-FF
425 *
426 * All the chars are encoded except "VCHAR", "obs-text", SP and HTAB.
427 * The encoded chars are form 0x00 to 0x08, 0x0a to 0x1f and 0x7f. The
428 * "obs-fold" is volontary forgotten because haproxy remove this.
429 */
430 memset(http_encode_map, 0, sizeof(http_encode_map));
431 for (i = 0x00; i <= 0x08; i++)
432 FD_SET(i, http_encode_map);
433 for (i = 0x0a; i <= 0x1f; i++)
434 FD_SET(i, http_encode_map);
435 FD_SET(0x7f, http_encode_map);
436
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]437 /* memory allocations */
Willy Tarreau63986c72015-04-03 22:55:33 +0200[diff] [blame]438 pool2_http_txn = create_pool("http_txn", sizeof(struct http_txn), MEM_F_SHARED);
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]439 pool2_requri = create_pool("requri", REQURI_LEN, MEM_F_SHARED);
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]440 pool2_uniqueid = create_pool("uniqueid", UNIQUEID_LEN, MEM_F_SHARED);
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]441}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]442
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]443/*
444 * We have 26 list of methods (1 per first letter), each of which can have
445 * up to 3 entries (2 valid, 1 null).
446 */
447struct http_method_desc {
Willy Tarreauc8987b32013-12-06 23:43:17 +0100[diff] [blame]448 enum http_meth_t meth;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]449 int len;
450 const char text[8];
451};
452
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]453const struct http_method_desc http_methods[26][3] = {
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]454 ['C' - 'A'] = {
455 [0] = { .meth = HTTP_METH_CONNECT , .len=7, .text="CONNECT" },
456 },
457 ['D' - 'A'] = {
458 [0] = { .meth = HTTP_METH_DELETE , .len=6, .text="DELETE" },
459 },
460 ['G' - 'A'] = {
461 [0] = { .meth = HTTP_METH_GET , .len=3, .text="GET" },
462 },
463 ['H' - 'A'] = {
464 [0] = { .meth = HTTP_METH_HEAD , .len=4, .text="HEAD" },
465 },
Christopher Fauletd57ad642015-07-31 14:26:57 +0200[diff] [blame]466 ['O' - 'A'] = {
467 [0] = { .meth = HTTP_METH_OPTIONS , .len=7, .text="OPTIONS" },
468 },
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]469 ['P' - 'A'] = {
470 [0] = { .meth = HTTP_METH_POST , .len=4, .text="POST" },
471 [1] = { .meth = HTTP_METH_PUT , .len=3, .text="PUT" },
472 },
473 ['T' - 'A'] = {
474 [0] = { .meth = HTTP_METH_TRACE , .len=5, .text="TRACE" },
475 },
476 /* rest is empty like this :
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]477 * [0] = { .meth = HTTP_METH_OTHER , .len=0, .text="" },
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]478 */
479};
480
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]481const struct http_method_name http_known_methods[HTTP_METH_OTHER] = {
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]482 [HTTP_METH_OPTIONS] = { "OPTIONS", 7 },
483 [HTTP_METH_GET] = { "GET", 3 },
484 [HTTP_METH_HEAD] = { "HEAD", 4 },
485 [HTTP_METH_POST] = { "POST", 4 },
486 [HTTP_METH_PUT] = { "PUT", 3 },
487 [HTTP_METH_DELETE] = { "DELETE", 6 },
488 [HTTP_METH_TRACE] = { "TRACE", 5 },
489 [HTTP_METH_CONNECT] = { "CONNECT", 7 },
490};
491
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]492/* It is about twice as fast on recent architectures to lookup a byte in a
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]493 * table than to perform a boolean AND or OR between two tests. Refer to
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]494 * RFC2616 for those chars.
495 */
496
497const char http_is_spht[256] = {
498 [' '] = 1, ['\t'] = 1,
499};
500
501const char http_is_crlf[256] = {
502 ['\r'] = 1, ['\n'] = 1,
503};
504
505const char http_is_lws[256] = {
506 [' '] = 1, ['\t'] = 1,
507 ['\r'] = 1, ['\n'] = 1,
508};
509
510const char http_is_sep[256] = {
511 ['('] = 1, [')'] = 1, ['<'] = 1, ['>'] = 1,
512 ['@'] = 1, [','] = 1, [';'] = 1, [':'] = 1,
513 ['"'] = 1, ['/'] = 1, ['['] = 1, [']'] = 1,
514 ['{'] = 1, ['}'] = 1, ['?'] = 1, ['='] = 1,
515 [' '] = 1, ['\t'] = 1, ['\\'] = 1,
516};
517
518const char http_is_ctl[256] = {
519 [0 ... 31] = 1,
520 [127] = 1,
521};
522
523/*
524 * A token is any ASCII char that is neither a separator nor a CTL char.
525 * Do not overwrite values in assignment since gcc-2.95 will not handle
526 * them correctly. Instead, define every non-CTL char's status.
527 */
528const char http_is_token[256] = {
529 [' '] = 0, ['!'] = 1, ['"'] = 0, ['#'] = 1,
530 ['$'] = 1, ['%'] = 1, ['&'] = 1, ['\''] = 1,
531 ['('] = 0, [')'] = 0, ['*'] = 1, ['+'] = 1,
532 [','] = 0, ['-'] = 1, ['.'] = 1, ['/'] = 0,
533 ['0'] = 1, ['1'] = 1, ['2'] = 1, ['3'] = 1,
534 ['4'] = 1, ['5'] = 1, ['6'] = 1, ['7'] = 1,
535 ['8'] = 1, ['9'] = 1, [':'] = 0, [';'] = 0,
536 ['<'] = 0, ['='] = 0, ['>'] = 0, ['?'] = 0,
537 ['@'] = 0, ['A'] = 1, ['B'] = 1, ['C'] = 1,
538 ['D'] = 1, ['E'] = 1, ['F'] = 1, ['G'] = 1,
539 ['H'] = 1, ['I'] = 1, ['J'] = 1, ['K'] = 1,
540 ['L'] = 1, ['M'] = 1, ['N'] = 1, ['O'] = 1,
541 ['P'] = 1, ['Q'] = 1, ['R'] = 1, ['S'] = 1,
542 ['T'] = 1, ['U'] = 1, ['V'] = 1, ['W'] = 1,
543 ['X'] = 1, ['Y'] = 1, ['Z'] = 1, ['['] = 0,
544 ['\\'] = 0, [']'] = 0, ['^'] = 1, ['_'] = 1,
545 ['`'] = 1, ['a'] = 1, ['b'] = 1, ['c'] = 1,
546 ['d'] = 1, ['e'] = 1, ['f'] = 1, ['g'] = 1,
547 ['h'] = 1, ['i'] = 1, ['j'] = 1, ['k'] = 1,
548 ['l'] = 1, ['m'] = 1, ['n'] = 1, ['o'] = 1,
549 ['p'] = 1, ['q'] = 1, ['r'] = 1, ['s'] = 1,
550 ['t'] = 1, ['u'] = 1, ['v'] = 1, ['w'] = 1,
551 ['x'] = 1, ['y'] = 1, ['z'] = 1, ['{'] = 0,
552 ['|'] = 1, ['}'] = 0, ['~'] = 1,
553};
554
555
Willy Tarreau4b89ad42007-03-04 18:13:58 +0100[diff] [blame]556/*
557 * An http ver_token is any ASCII which can be found in an HTTP version,
558 * which includes 'H', 'T', 'P', '/', '.' and any digit.
559 */
560const char http_is_ver_token[256] = {
561 ['.'] = 1, ['/'] = 1,
562 ['0'] = 1, ['1'] = 1, ['2'] = 1, ['3'] = 1, ['4'] = 1,
563 ['5'] = 1, ['6'] = 1, ['7'] = 1, ['8'] = 1, ['9'] = 1,
Thierry FOURNIER63d692c2015-02-28 19:03:56 +0100[diff] [blame]564 ['H'] = 1, ['P'] = 1, ['R'] = 1, ['S'] = 1, ['T'] = 1,
Willy Tarreau4b89ad42007-03-04 18:13:58 +0100[diff] [blame]565};
566
567
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]568/*
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]569 * Adds a header and its CRLF at the tail of the message's buffer, just before
570 * the last CRLF. Text length is measured first, so it cannot be NULL.
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]571 * The header is also automatically added to the index <hdr_idx>, and the end
572 * of headers is automatically adjusted. The number of bytes added is returned
573 * on success, otherwise <0 is returned indicating an error.
574 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]575int 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]576{
577 int bytes, len;
578
579 len = strlen(text);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]580 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]581 if (!bytes)
582 return -1;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]583 http_msg_move_end(msg, bytes);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]584 return hdr_idx_add(len, 1, hdr_idx, hdr_idx->tail);
585}
586
587/*
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]588 * Adds a header and its CRLF at the tail of the message's buffer, just before
589 * 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]590 * the buffer is only opened and the space reserved, but nothing is copied.
591 * The header is also automatically added to the index <hdr_idx>, and the end
592 * of headers is automatically adjusted. The number of bytes added is returned
593 * on success, otherwise <0 is returned indicating an error.
594 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]595int http_header_add_tail2(struct http_msg *msg,
596 struct hdr_idx *hdr_idx, const char *text, int len)
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]597{
598 int bytes;
599
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]600 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]601 if (!bytes)
602 return -1;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]603 http_msg_move_end(msg, bytes);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]604 return hdr_idx_add(len, 1, hdr_idx, hdr_idx->tail);
605}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]606
607/*
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]608 * Checks if <hdr> is exactly <name> for <len> chars, and ends with a colon.
609 * If so, returns the position of the first non-space character relative to
610 * <hdr>, or <end>-<hdr> if not found before. If no value is found, it tries
611 * to return a pointer to the place after the first space. Returns 0 if the
612 * header name does not match. Checks are case-insensitive.
613 */
614int http_header_match2(const char *hdr, const char *end,
615 const char *name, int len)
616{
617 const char *val;
618
619 if (hdr + len >= end)
620 return 0;
621 if (hdr[len] != ':')
622 return 0;
623 if (strncasecmp(hdr, name, len) != 0)
624 return 0;
625 val = hdr + len + 1;
626 while (val < end && HTTP_IS_SPHT(*val))
627 val++;
628 if ((val >= end) && (len + 2 <= end - hdr))
629 return len + 2; /* we may replace starting from second space */
630 return val - hdr;
631}
632
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]633/* Find the first or next occurrence of header <name> in message buffer <sol>
634 * using headers index <idx>, and return it in the <ctx> structure. This
635 * structure holds everything necessary to use the header and find next
636 * occurrence. If its <idx> member is 0, the header is searched from the
637 * beginning. Otherwise, the next occurrence is returned. The function returns
638 * 1 when it finds a value, and 0 when there is no more. It is very similar to
639 * http_find_header2() except that it is designed to work with full-line headers
640 * whose comma is not a delimiter but is part of the syntax. As a special case,
641 * if ctx->val is NULL when searching for a new values of a header, the current
642 * header is rescanned. This allows rescanning after a header deletion.
643 */
644int http_find_full_header2(const char *name, int len,
645 char *sol, struct hdr_idx *idx,
646 struct hdr_ctx *ctx)
647{
648 char *eol, *sov;
649 int cur_idx, old_idx;
650
651 cur_idx = ctx->idx;
652 if (cur_idx) {
653 /* We have previously returned a header, let's search another one */
654 sol = ctx->line;
655 eol = sol + idx->v[cur_idx].len;
656 goto next_hdr;
657 }
658
659 /* first request for this header */
660 sol += hdr_idx_first_pos(idx);
661 old_idx = 0;
662 cur_idx = hdr_idx_first_idx(idx);
663 while (cur_idx) {
664 eol = sol + idx->v[cur_idx].len;
665
666 if (len == 0) {
667 /* No argument was passed, we want any header.
668 * To achieve this, we simply build a fake request. */
669 while (sol + len < eol && sol[len] != ':')
670 len++;
671 name = sol;
672 }
673
674 if ((len < eol - sol) &&
675 (sol[len] == ':') &&
676 (strncasecmp(sol, name, len) == 0)) {
677 ctx->del = len;
678 sov = sol + len + 1;
679 while (sov < eol && http_is_lws[(unsigned char)*sov])
680 sov++;
681
682 ctx->line = sol;
683 ctx->prev = old_idx;
684 ctx->idx = cur_idx;
685 ctx->val = sov - sol;
686 ctx->tws = 0;
687 while (eol > sov && http_is_lws[(unsigned char)*(eol - 1)]) {
688 eol--;
689 ctx->tws++;
690 }
691 ctx->vlen = eol - sov;
692 return 1;
693 }
694 next_hdr:
695 sol = eol + idx->v[cur_idx].cr + 1;
696 old_idx = cur_idx;
697 cur_idx = idx->v[cur_idx].next;
698 }
699 return 0;
700}
701
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]702/* Find the first or next header field in message buffer <sol> using headers
703 * index <idx>, and return it in the <ctx> structure. This structure holds
704 * everything necessary to use the header and find next occurrence. If its
705 * <idx> member is 0, the first header is retrieved. Otherwise, the next
706 * occurrence is returned. The function returns 1 when it finds a value, and
707 * 0 when there is no more. It is equivalent to http_find_full_header2() with
708 * no header name.
709 */
710int http_find_next_header(char *sol, struct hdr_idx *idx, struct hdr_ctx *ctx)
711{
712 char *eol, *sov;
713 int cur_idx, old_idx;
714 int len;
715
716 cur_idx = ctx->idx;
717 if (cur_idx) {
718 /* We have previously returned a header, let's search another one */
719 sol = ctx->line;
720 eol = sol + idx->v[cur_idx].len;
721 goto next_hdr;
722 }
723
724 /* first request for this header */
725 sol += hdr_idx_first_pos(idx);
726 old_idx = 0;
727 cur_idx = hdr_idx_first_idx(idx);
728 while (cur_idx) {
729 eol = sol + idx->v[cur_idx].len;
730
731 len = 0;
732 while (1) {
733 if (len >= eol - sol)
734 goto next_hdr;
735 if (sol[len] == ':')
736 break;
737 len++;
738 }
739
740 ctx->del = len;
741 sov = sol + len + 1;
742 while (sov < eol && http_is_lws[(unsigned char)*sov])
743 sov++;
744
745 ctx->line = sol;
746 ctx->prev = old_idx;
747 ctx->idx = cur_idx;
748 ctx->val = sov - sol;
749 ctx->tws = 0;
750
751 while (eol > sov && http_is_lws[(unsigned char)*(eol - 1)]) {
752 eol--;
753 ctx->tws++;
754 }
755 ctx->vlen = eol - sov;
756 return 1;
757
758 next_hdr:
759 sol = eol + idx->v[cur_idx].cr + 1;
760 old_idx = cur_idx;
761 cur_idx = idx->v[cur_idx].next;
762 }
763 return 0;
764}
765
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]766/* Find the end of the header value contained between <s> and <e>. See RFC2616,
767 * par 2.2 for more information. Note that it requires a valid header to return
768 * a valid result. This works for headers defined as comma-separated lists.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]769 */
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]770char *find_hdr_value_end(char *s, const char *e)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]771{
772 int quoted, qdpair;
773
774 quoted = qdpair = 0;
775 for (; s < e; s++) {
776 if (qdpair) qdpair = 0;
Willy Tarreau0f7f51f2010-08-30 11:06:34 +0200[diff] [blame]777 else if (quoted) {
778 if (*s == '\\') qdpair = 1;
779 else if (*s == '"') quoted = 0;
780 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]781 else if (*s == '"') quoted = 1;
782 else if (*s == ',') return s;
783 }
784 return s;
785}
786
787/* Find the first or next occurrence of header <name> in message buffer <sol>
788 * using headers index <idx>, and return it in the <ctx> structure. This
789 * structure holds everything necessary to use the header and find next
790 * occurrence. If its <idx> member is 0, the header is searched from the
791 * beginning. Otherwise, the next occurrence is returned. The function returns
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]792 * 1 when it finds a value, and 0 when there is no more. It is designed to work
793 * with headers defined as comma-separated lists. As a special case, if ctx->val
794 * is NULL when searching for a new values of a header, the current header is
795 * rescanned. This allows rescanning after a header deletion.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]796 */
797int http_find_header2(const char *name, int len,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]798 char *sol, struct hdr_idx *idx,
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]799 struct hdr_ctx *ctx)
800{
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]801 char *eol, *sov;
802 int cur_idx, old_idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]803
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]804 cur_idx = ctx->idx;
805 if (cur_idx) {
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]806 /* We have previously returned a value, let's search
807 * another one on the same line.
808 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]809 sol = ctx->line;
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]810 ctx->del = ctx->val + ctx->vlen + ctx->tws;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]811 sov = sol + ctx->del;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]812 eol = sol + idx->v[cur_idx].len;
813
814 if (sov >= eol)
815 /* no more values in this header */
816 goto next_hdr;
817
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]818 /* values remaining for this header, skip the comma but save it
819 * for later use (eg: for header deletion).
820 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]821 sov++;
822 while (sov < eol && http_is_lws[(unsigned char)*sov])
823 sov++;
824
825 goto return_hdr;
826 }
827
828 /* first request for this header */
829 sol += hdr_idx_first_pos(idx);
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]830 old_idx = 0;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]831 cur_idx = hdr_idx_first_idx(idx);
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]832 while (cur_idx) {
833 eol = sol + idx->v[cur_idx].len;
834
Willy Tarreau1ad7c6d2007-06-10 21:42:55 +0200[diff] [blame]835 if (len == 0) {
836 /* No argument was passed, we want any header.
837 * To achieve this, we simply build a fake request. */
838 while (sol + len < eol && sol[len] != ':')
839 len++;
840 name = sol;
841 }
842
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]843 if ((len < eol - sol) &&
844 (sol[len] == ':') &&
845 (strncasecmp(sol, name, len) == 0)) {
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]846 ctx->del = len;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]847 sov = sol + len + 1;
848 while (sov < eol && http_is_lws[(unsigned char)*sov])
849 sov++;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]850
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]851 ctx->line = sol;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]852 ctx->prev = old_idx;
853 return_hdr:
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]854 ctx->idx = cur_idx;
855 ctx->val = sov - sol;
856
857 eol = find_hdr_value_end(sov, eol);
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]858 ctx->tws = 0;
Willy Tarreau275600b2011-09-16 08:11:26 +0200[diff] [blame]859 while (eol > sov && http_is_lws[(unsigned char)*(eol - 1)]) {
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]860 eol--;
861 ctx->tws++;
862 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]863 ctx->vlen = eol - sov;
864 return 1;
865 }
866 next_hdr:
867 sol = eol + idx->v[cur_idx].cr + 1;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]868 old_idx = cur_idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]869 cur_idx = idx->v[cur_idx].next;
870 }
871 return 0;
872}
873
874int http_find_header(const char *name,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]875 char *sol, struct hdr_idx *idx,
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]876 struct hdr_ctx *ctx)
877{
878 return http_find_header2(name, strlen(name), sol, idx, ctx);
879}
880
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]881/* Remove one value of a header. This only works on a <ctx> returned by one of
882 * the http_find_header functions. The value is removed, as well as surrounding
883 * commas if any. If the removed value was alone, the whole header is removed.
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]884 * The ctx is always updated accordingly, as well as the buffer and HTTP
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]885 * message <msg>. The new index is returned. If it is zero, it means there is
886 * no more header, so any processing may stop. The ctx is always left in a form
887 * that can be handled by http_find_header2() to find next occurrence.
888 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]889int 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]890{
891 int cur_idx = ctx->idx;
892 char *sol = ctx->line;
893 struct hdr_idx_elem *hdr;
894 int delta, skip_comma;
895
896 if (!cur_idx)
897 return 0;
898
899 hdr = &idx->v[cur_idx];
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]900 if (sol[ctx->del] == ':' && ctx->val + ctx->vlen + ctx->tws == hdr->len) {
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]901 /* This was the only value of the header, we must now remove it entirely. */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]902 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]903 http_msg_move_end(msg, delta);
904 idx->used--;
905 hdr->len = 0; /* unused entry */
906 idx->v[ctx->prev].next = idx->v[ctx->idx].next;
Willy Tarreau5c4784f2011-02-12 13:07:35 +0100[diff] [blame]907 if (idx->tail == ctx->idx)
908 idx->tail = ctx->prev;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]909 ctx->idx = ctx->prev; /* walk back to the end of previous header */
Willy Tarreau7c1c2172015-01-07 17:23:50 +0100[diff] [blame]910 ctx->line -= idx->v[ctx->idx].len + idx->v[ctx->idx].cr + 1;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]911 ctx->val = idx->v[ctx->idx].len; /* point to end of previous header */
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]912 ctx->tws = ctx->vlen = 0;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]913 return ctx->idx;
914 }
915
916 /* This was not the only value of this header. We have to remove between
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]917 * ctx->del+1 and ctx->val+ctx->vlen+ctx->tws+1 included. If it is the
918 * last entry of the list, we remove the last separator.
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]919 */
920
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]921 skip_comma = (ctx->val + ctx->vlen + ctx->tws == hdr->len) ? 0 : 1;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]922 delta = buffer_replace2(msg->chn->buf, sol + ctx->del + skip_comma,
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]923 sol + ctx->val + ctx->vlen + ctx->tws + skip_comma,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]924 NULL, 0);
925 hdr->len += delta;
926 http_msg_move_end(msg, delta);
927 ctx->val = ctx->del;
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]928 ctx->tws = ctx->vlen = 0;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]929 return ctx->idx;
930}
931
Willy Tarreau2d3d94c2008-11-30 20:20:08 +0100[diff] [blame]932/* This function handles a server error at the stream interface level. The
933 * stream interface is assumed to be already in a closed state. An optional
934 * message is copied into the input buffer, and an HTTP status code stored.
935 * The error flags are set to the values in arguments. Any pending request
Willy Tarreau6f0aa472009-03-08 20:33:29 +0100[diff] [blame]936 * in this buffer will be lost.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]937 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]938static void http_server_error(struct stream *s, struct stream_interface *si,
Willy Tarreau2d3d94c2008-11-30 20:20:08 +0100[diff] [blame]939 int err, int finst, int status, const struct chunk *msg)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]940{
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]941 FLT_STRM_CB(s, flt_http_reply(s, status, msg));
Willy Tarreau2bb4a962014-11-28 11:11:05 +0100[diff] [blame]942 channel_auto_read(si_oc(si));
943 channel_abort(si_oc(si));
944 channel_auto_close(si_oc(si));
945 channel_erase(si_oc(si));
946 channel_auto_close(si_ic(si));
947 channel_auto_read(si_ic(si));
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]948 if (status > 0 && msg) {
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]949 s->txn->status = status;
Willy Tarreau2bb4a962014-11-28 11:11:05 +0100[diff] [blame]950 bo_inject(si_ic(si), msg->str, msg->len);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]951 }
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]952 if (!(s->flags & SF_ERR_MASK))
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]953 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]954 if (!(s->flags & SF_FINST_MASK))
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]955 s->flags |= finst;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]956}
957
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]958/* This function returns the appropriate error location for the given stream
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]959 * and message.
960 */
961
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]962struct chunk *http_error_message(struct stream *s, int msgnum)
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]963{
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200[diff] [blame]964 if (s->be->errmsg[msgnum].str)
965 return &s->be->errmsg[msgnum];
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]966 else if (strm_fe(s)->errmsg[msgnum].str)
967 return &strm_fe(s)->errmsg[msgnum];
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]968 else
969 return &http_err_chunks[msgnum];
970}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]971
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]972void
973http_reply_and_close(struct stream *s, short status, struct chunk *msg)
974{
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]975 s->txn->flags &= ~TX_WAIT_NEXT_RQ;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]976 FLT_STRM_CB(s, flt_http_reply(s, status, msg));
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]977 stream_int_retnclose(&s->si[0], msg);
978}
979
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]980/*
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]981 * returns a known method among HTTP_METH_* or HTTP_METH_OTHER for all unknown
982 * ones.
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]983 */
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]984enum http_meth_t find_http_meth(const char *str, const int len)
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]985{
986 unsigned char m;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]987 const struct http_method_desc *h;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]988
989 m = ((unsigned)*str - 'A');
990
991 if (m < 26) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]992 for (h = http_methods[m]; h->len > 0; h++) {
993 if (unlikely(h->len != len))
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]994 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]995 if (likely(memcmp(str, h->text, h->len) == 0))
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]996 return h->meth;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]997 };
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]998 }
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]999 return HTTP_METH_OTHER;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]1000}
1001
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]1002/* Parse the URI from the given transaction (which is assumed to be in request
1003 * phase) and look for the "/" beginning the PATH. If not found, return NULL.
1004 * It is returned otherwise.
1005 */
Thierry FOURNIER3c331782015-09-17 19:33:35 +0200[diff] [blame]1006char *http_get_path(struct http_txn *txn)
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]1007{
1008 char *ptr, *end;
1009
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1010 ptr = txn->req.chn->buf->p + txn->req.sl.rq.u;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]1011 end = ptr + txn->req.sl.rq.u_l;
1012
1013 if (ptr >= end)
1014 return NULL;
1015
1016 /* RFC2616, par. 5.1.2 :
1017 * Request-URI = "*" | absuri | abspath | authority
1018 */
1019
1020 if (*ptr == '*')
1021 return NULL;
1022
1023 if (isalpha((unsigned char)*ptr)) {
1024 /* this is a scheme as described by RFC3986, par. 3.1 */
1025 ptr++;
1026 while (ptr < end &&
1027 (isalnum((unsigned char)*ptr) || *ptr == '+' || *ptr == '-' || *ptr == '.'))
1028 ptr++;
1029 /* skip '://' */
1030 if (ptr == end || *ptr++ != ':')
1031 return NULL;
1032 if (ptr == end || *ptr++ != '/')
1033 return NULL;
1034 if (ptr == end || *ptr++ != '/')
1035 return NULL;
1036 }
1037 /* skip [user[:passwd]@]host[:[port]] */
1038
1039 while (ptr < end && *ptr != '/')
1040 ptr++;
1041
1042 if (ptr == end)
1043 return NULL;
1044
1045 /* OK, we got the '/' ! */
1046 return ptr;
1047}
1048
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]1049/* Parse the URI from the given string and look for the "/" beginning the PATH.
1050 * If not found, return NULL. It is returned otherwise.
1051 */
1052static char *
1053http_get_path_from_string(char *str)
1054{
1055 char *ptr = str;
1056
1057 /* RFC2616, par. 5.1.2 :
1058 * Request-URI = "*" | absuri | abspath | authority
1059 */
1060
1061 if (*ptr == '*')
1062 return NULL;
1063
1064 if (isalpha((unsigned char)*ptr)) {
1065 /* this is a scheme as described by RFC3986, par. 3.1 */
1066 ptr++;
1067 while (isalnum((unsigned char)*ptr) || *ptr == '+' || *ptr == '-' || *ptr == '.')
1068 ptr++;
1069 /* skip '://' */
1070 if (*ptr == '\0' || *ptr++ != ':')
1071 return NULL;
1072 if (*ptr == '\0' || *ptr++ != '/')
1073 return NULL;
1074 if (*ptr == '\0' || *ptr++ != '/')
1075 return NULL;
1076 }
1077 /* skip [user[:passwd]@]host[:[port]] */
1078
1079 while (*ptr != '\0' && *ptr != ' ' && *ptr != '/')
1080 ptr++;
1081
1082 if (*ptr == '\0' || *ptr == ' ')
1083 return NULL;
1084
1085 /* OK, we got the '/' ! */
1086 return ptr;
1087}
1088
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]1089/* Returns a 302 for a redirectable request that reaches a server working in
1090 * in redirect mode. This may only be called just after the stream interface
1091 * has moved to SI_ST_ASS. Unprocessable requests are left unchanged and will
1092 * follow normal proxy processing. NOTE: this function is designed to support
1093 * being called once data are scheduled for forwarding.
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1094 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1095void http_perform_server_redirect(struct stream *s, struct stream_interface *si)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1096{
1097 struct http_txn *txn;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1098 struct server *srv;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1099 char *path;
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1100 int len, rewind;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1101
1102 /* 1: create the response header */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1103 trash.len = strlen(HTTP_302);
1104 memcpy(trash.str, HTTP_302, trash.len);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1105
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]1106 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1107
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1108 /* 2: add the server's prefix */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1109 if (trash.len + srv->rdr_len > trash.size)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1110 return;
1111
Willy Tarreaudcb75c42010-01-10 00:24:22 +0100[diff] [blame]1112 /* special prefix "/" means don't change URL */
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1113 if (srv->rdr_len != 1 || *srv->rdr_pfx != '/') {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1114 memcpy(trash.str + trash.len, srv->rdr_pfx, srv->rdr_len);
1115 trash.len += srv->rdr_len;
Willy Tarreaudcb75c42010-01-10 00:24:22 +0100[diff] [blame]1116 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1117
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1118 /* 3: add the request URI. Since it was already forwarded, we need
1119 * to temporarily rewind the buffer.
1120 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1121 txn = s->txn;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1122 b_rew(s->req.buf, rewind = http_hdr_rewind(&txn->req));
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1123
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1124 path = http_get_path(txn);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1125 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]1126
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1127 b_adv(s->req.buf, rewind);
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1128
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1129 if (!path)
1130 return;
1131
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1132 if (trash.len + len > trash.size - 4) /* 4 for CRLF-CRLF */
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1133 return;
1134
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1135 memcpy(trash.str + trash.len, path, len);
1136 trash.len += len;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1137
1138 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1139 memcpy(trash.str + trash.len, "\r\nProxy-Connection: close\r\n\r\n", 29);
1140 trash.len += 29;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1141 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1142 memcpy(trash.str + trash.len, "\r\nConnection: close\r\n\r\n", 23);
1143 trash.len += 23;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1144 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1145
1146 /* prepare to return without error. */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200[diff] [blame]1147 si_shutr(si);
1148 si_shutw(si);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1149 si->err_type = SI_ET_NONE;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1150 si->state = SI_ST_CLO;
1151
1152 /* send the message */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1153 http_server_error(s, si, SF_ERR_LOCAL, SF_FINST_C, 302, &trash);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1154
1155 /* FIXME: we should increase a counter of redirects per server and per backend. */
Willy Tarreau4521ba62013-01-24 01:25:25 +0100[diff] [blame]1156 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -0500[diff] [blame]1157 srv_set_sess_last(srv);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1158}
1159
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100[diff] [blame]1160/* Return the error message corresponding to si->err_type. It is assumed
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1161 * that the server side is closed. Note that err_type is actually a
1162 * bitmask, where almost only aborts may be cumulated with other
1163 * values. We consider that aborted operations are more important
1164 * than timeouts or errors due to the fact that nobody else in the
1165 * logs might explain incomplete retries. All others should avoid
1166 * being cumulated. It should normally not be possible to have multiple
1167 * aborts at once, but just in case, the first one in sequence is reported.
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]1168 * Note that connection errors appearing on the second request of a keep-alive
1169 * connection are not reported since this allows the client to retry.
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1170 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1171void http_return_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1172{
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100[diff] [blame]1173 int err_type = si->err_type;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1174
1175 if (err_type & SI_ET_QUEUE_ABRT)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1176 http_server_error(s, si, SF_ERR_CLICL, SF_FINST_Q,
Willy Tarreau783f2582012-09-04 12:19:04 +0200[diff] [blame]1177 503, http_error_message(s, HTTP_ERR_503));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1178 else if (err_type & SI_ET_CONN_ABRT)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1179 http_server_error(s, si, SF_ERR_CLICL, SF_FINST_C,
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1180 503, (s->txn->flags & TX_NOT_FIRST) ? NULL :
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]1181 http_error_message(s, HTTP_ERR_503));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1182 else if (err_type & SI_ET_QUEUE_TO)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1183 http_server_error(s, si, SF_ERR_SRVTO, SF_FINST_Q,
Willy Tarreau783f2582012-09-04 12:19:04 +0200[diff] [blame]1184 503, http_error_message(s, HTTP_ERR_503));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1185 else if (err_type & SI_ET_QUEUE_ERR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1186 http_server_error(s, si, SF_ERR_SRVCL, SF_FINST_Q,
Willy Tarreau783f2582012-09-04 12:19:04 +0200[diff] [blame]1187 503, http_error_message(s, HTTP_ERR_503));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1188 else if (err_type & SI_ET_CONN_TO)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1189 http_server_error(s, si, SF_ERR_SRVTO, SF_FINST_C,
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1190 503, (s->txn->flags & TX_NOT_FIRST) ? NULL :
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]1191 http_error_message(s, HTTP_ERR_503));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1192 else if (err_type & SI_ET_CONN_ERR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1193 http_server_error(s, si, SF_ERR_SRVCL, SF_FINST_C,
1194 503, (s->flags & SF_SRV_REUSED) ? NULL :
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]1195 http_error_message(s, HTTP_ERR_503));
Willy Tarreau2d400bb2012-05-14 12:11:47 +0200[diff] [blame]1196 else if (err_type & SI_ET_CONN_RES)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1197 http_server_error(s, si, SF_ERR_RESOURCE, SF_FINST_C,
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1198 503, (s->txn->flags & TX_NOT_FIRST) ? NULL :
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]1199 http_error_message(s, HTTP_ERR_503));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1200 else /* SI_ET_CONN_OTHER and others */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1201 http_server_error(s, si, SF_ERR_INTERNAL, SF_FINST_C,
Willy Tarreau783f2582012-09-04 12:19:04 +0200[diff] [blame]1202 500, http_error_message(s, HTTP_ERR_500));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1203}
1204
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]1205extern const char sess_term_cond[8];
1206extern const char sess_fin_state[8];
1207extern const char *monthname[12];
Willy Tarreau63986c72015-04-03 22:55:33 +0200[diff] [blame]1208struct pool_head *pool2_http_txn;
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]1209struct pool_head *pool2_requri;
Willy Tarreau193b8c62012-11-22 00:17:38 +0100[diff] [blame]1210struct pool_head *pool2_capture = NULL;
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]1211struct pool_head *pool2_uniqueid;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1212
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1213/*
1214 * Capture headers from message starting at <som> according to header list
Willy Tarreau54da8db2014-06-13 16:11:48 +0200[diff] [blame]1215 * <cap_hdr>, and fill the <cap> pointers appropriately.
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1216 */
1217void capture_headers(char *som, struct hdr_idx *idx,
1218 char **cap, struct cap_hdr *cap_hdr)
1219{
1220 char *eol, *sol, *col, *sov;
1221 int cur_idx;
1222 struct cap_hdr *h;
1223 int len;
1224
1225 sol = som + hdr_idx_first_pos(idx);
1226 cur_idx = hdr_idx_first_idx(idx);
1227
1228 while (cur_idx) {
1229 eol = sol + idx->v[cur_idx].len;
1230
1231 col = sol;
1232 while (col < eol && *col != ':')
1233 col++;
1234
1235 sov = col + 1;
1236 while (sov < eol && http_is_lws[(unsigned char)*sov])
1237 sov++;
1238
1239 for (h = cap_hdr; h; h = h->next) {
Willy Tarreau54da8db2014-06-13 16:11:48 +0200[diff] [blame]1240 if (h->namelen && (h->namelen == col - sol) &&
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1241 (strncasecmp(sol, h->name, h->namelen) == 0)) {
1242 if (cap[h->index] == NULL)
1243 cap[h->index] =
Willy Tarreaucf7f3202007-05-13 22:46:04 +0200[diff] [blame]1244 pool_alloc2(h->pool);
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1245
1246 if (cap[h->index] == NULL) {
1247 Alert("HTTP capture : out of memory.\n");
1248 continue;
1249 }
1250
1251 len = eol - sov;
1252 if (len > h->len)
1253 len = h->len;
1254
1255 memcpy(cap[h->index], sov, len);
1256 cap[h->index][len]=0;
1257 }
1258 }
1259 sol = eol + idx->v[cur_idx].cr + 1;
1260 cur_idx = idx->v[cur_idx].next;
1261 }
1262}
1263
1264
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]1265/* either we find an LF at <ptr> or we jump to <bad>.
1266 */
1267#define EXPECT_LF_HERE(ptr, bad) do { if (unlikely(*(ptr) != '\n')) goto bad; } while (0)
1268
1269/* plays with variables <ptr>, <end> and <state>. Jumps to <good> if OK,
1270 * otherwise to <http_msg_ood> with <state> set to <st>.
1271 */
1272#define EAT_AND_JUMP_OR_RETURN(good, st) do { \
1273 ptr++; \
1274 if (likely(ptr < end)) \
1275 goto good; \
1276 else { \
1277 state = (st); \
1278 goto http_msg_ood; \
1279 } \
1280 } while (0)
1281
1282
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1283/*
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]1284 * This function parses a status line between <ptr> and <end>, starting with
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1285 * parser state <state>. Only states HTTP_MSG_RPVER, HTTP_MSG_RPVER_SP,
1286 * HTTP_MSG_RPCODE, HTTP_MSG_RPCODE_SP and HTTP_MSG_RPREASON are handled. Others
1287 * will give undefined results.
1288 * Note that it is upon the caller's responsibility to ensure that ptr < end,
1289 * and that msg->sol points to the beginning of the response.
1290 * If a complete line is found (which implies that at least one CR or LF is
1291 * found before <end>, the updated <ptr> is returned, otherwise NULL is
1292 * returned indicating an incomplete line (which does not mean that parts have
1293 * not been updated). In the incomplete case, if <ret_ptr> or <ret_state> are
1294 * non-NULL, they are fed with the new <ptr> and <state> values to be passed
1295 * upon next call.
1296 *
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]1297 * This function was intentionally designed to be called from
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1298 * http_msg_analyzer() with the lowest overhead. It should integrate perfectly
1299 * within its state machine and use the same macros, hence the need for same
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]1300 * labels and variable names. Note that msg->sol is left unchanged.
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1301 */
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1302const char *http_parse_stsline(struct http_msg *msg,
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1303 enum ht_state state, const char *ptr, const char *end,
1304 unsigned int *ret_ptr, enum ht_state *ret_state)
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1305{
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1306 const char *msg_start = msg->chn->buf->p;
Willy Tarreau62f791e2012-03-09 11:32:30 +0100[diff] [blame]1307
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1308 switch (state) {
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1309 case HTTP_MSG_RPVER:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1310 http_msg_rpver:
Willy Tarreau4b89ad42007-03-04 18:13:58 +0100[diff] [blame]1311 if (likely(HTTP_IS_VER_TOKEN(*ptr)))
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1312 EAT_AND_JUMP_OR_RETURN(http_msg_rpver, HTTP_MSG_RPVER);
1313
1314 if (likely(HTTP_IS_SPHT(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1315 msg->sl.st.v_l = ptr - msg_start;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1316 EAT_AND_JUMP_OR_RETURN(http_msg_rpver_sp, HTTP_MSG_RPVER_SP);
1317 }
Willy Tarreau7552c032009-03-01 11:10:40 +0100[diff] [blame]1318 state = HTTP_MSG_ERROR;
1319 break;
1320
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1321 case HTTP_MSG_RPVER_SP:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1322 http_msg_rpver_sp:
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1323 if (likely(!HTTP_IS_LWS(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1324 msg->sl.st.c = ptr - msg_start;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1325 goto http_msg_rpcode;
1326 }
1327 if (likely(HTTP_IS_SPHT(*ptr)))
1328 EAT_AND_JUMP_OR_RETURN(http_msg_rpver_sp, HTTP_MSG_RPVER_SP);
1329 /* so it's a CR/LF, this is invalid */
Willy Tarreau7552c032009-03-01 11:10:40 +0100[diff] [blame]1330 state = HTTP_MSG_ERROR;
1331 break;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1332
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1333 case HTTP_MSG_RPCODE:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1334 http_msg_rpcode:
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1335 if (likely(!HTTP_IS_LWS(*ptr)))
1336 EAT_AND_JUMP_OR_RETURN(http_msg_rpcode, HTTP_MSG_RPCODE);
1337
1338 if (likely(HTTP_IS_SPHT(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1339 msg->sl.st.c_l = ptr - msg_start - msg->sl.st.c;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1340 EAT_AND_JUMP_OR_RETURN(http_msg_rpcode_sp, HTTP_MSG_RPCODE_SP);
1341 }
1342
1343 /* so it's a CR/LF, so there is no reason phrase */
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1344 msg->sl.st.c_l = ptr - msg_start - msg->sl.st.c;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1345 http_msg_rsp_reason:
1346 /* FIXME: should we support HTTP responses without any reason phrase ? */
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1347 msg->sl.st.r = ptr - msg_start;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1348 msg->sl.st.r_l = 0;
1349 goto http_msg_rpline_eol;
1350
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1351 case HTTP_MSG_RPCODE_SP:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1352 http_msg_rpcode_sp:
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1353 if (likely(!HTTP_IS_LWS(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1354 msg->sl.st.r = ptr - msg_start;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1355 goto http_msg_rpreason;
1356 }
1357 if (likely(HTTP_IS_SPHT(*ptr)))
1358 EAT_AND_JUMP_OR_RETURN(http_msg_rpcode_sp, HTTP_MSG_RPCODE_SP);
1359 /* so it's a CR/LF, so there is no reason phrase */
1360 goto http_msg_rsp_reason;
1361
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1362 case HTTP_MSG_RPREASON:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1363 http_msg_rpreason:
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1364 if (likely(!HTTP_IS_CRLF(*ptr)))
1365 EAT_AND_JUMP_OR_RETURN(http_msg_rpreason, HTTP_MSG_RPREASON);
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1366 msg->sl.st.r_l = ptr - msg_start - msg->sl.st.r;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1367 http_msg_rpline_eol:
1368 /* We have seen the end of line. Note that we do not
1369 * necessarily have the \n yet, but at least we know that we
1370 * have EITHER \r OR \n, otherwise the response would not be
1371 * complete. We can then record the response length and return
1372 * to the caller which will be able to register it.
1373 */
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]1374 msg->sl.st.l = ptr - msg_start - msg->sol;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1375 return ptr;
1376
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1377 default:
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1378#ifdef DEBUG_FULL
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1379 fprintf(stderr, "FIXME !!!! impossible state at %s:%d = %d\n", __FILE__, __LINE__, state);
1380 exit(1);
1381#endif
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1382 ;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1383 }
1384
1385 http_msg_ood:
Willy Tarreau7552c032009-03-01 11:10:40 +0100[diff] [blame]1386 /* out of valid data */
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1387 if (ret_state)
1388 *ret_state = state;
1389 if (ret_ptr)
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]1390 *ret_ptr = ptr - msg_start;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1391 return NULL;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1392}
1393
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1394/*
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1395 * This function parses a request line between <ptr> and <end>, starting with
1396 * parser state <state>. Only states HTTP_MSG_RQMETH, HTTP_MSG_RQMETH_SP,
1397 * HTTP_MSG_RQURI, HTTP_MSG_RQURI_SP and HTTP_MSG_RQVER are handled. Others
1398 * will give undefined results.
1399 * Note that it is upon the caller's responsibility to ensure that ptr < end,
1400 * and that msg->sol points to the beginning of the request.
1401 * If a complete line is found (which implies that at least one CR or LF is
1402 * found before <end>, the updated <ptr> is returned, otherwise NULL is
1403 * returned indicating an incomplete line (which does not mean that parts have
1404 * not been updated). In the incomplete case, if <ret_ptr> or <ret_state> are
1405 * non-NULL, they are fed with the new <ptr> and <state> values to be passed
1406 * upon next call.
1407 *
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]1408 * This function was intentionally designed to be called from
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1409 * http_msg_analyzer() with the lowest overhead. It should integrate perfectly
1410 * within its state machine and use the same macros, hence the need for same
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]1411 * labels and variable names. Note that msg->sol is left unchanged.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1412 */
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1413const char *http_parse_reqline(struct http_msg *msg,
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1414 enum ht_state state, const char *ptr, const char *end,
1415 unsigned int *ret_ptr, enum ht_state *ret_state)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1416{
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1417 const char *msg_start = msg->chn->buf->p;
Willy Tarreau62f791e2012-03-09 11:32:30 +0100[diff] [blame]1418
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1419 switch (state) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1420 case HTTP_MSG_RQMETH:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1421 http_msg_rqmeth:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1422 if (likely(HTTP_IS_TOKEN(*ptr)))
1423 EAT_AND_JUMP_OR_RETURN(http_msg_rqmeth, HTTP_MSG_RQMETH);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1424
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1425 if (likely(HTTP_IS_SPHT(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1426 msg->sl.rq.m_l = ptr - msg_start;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1427 EAT_AND_JUMP_OR_RETURN(http_msg_rqmeth_sp, HTTP_MSG_RQMETH_SP);
1428 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1429
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1430 if (likely(HTTP_IS_CRLF(*ptr))) {
1431 /* HTTP 0.9 request */
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1432 msg->sl.rq.m_l = ptr - msg_start;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1433 http_msg_req09_uri:
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1434 msg->sl.rq.u = ptr - msg_start;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1435 http_msg_req09_uri_e:
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1436 msg->sl.rq.u_l = ptr - msg_start - msg->sl.rq.u;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1437 http_msg_req09_ver:
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1438 msg->sl.rq.v = ptr - msg_start;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1439 msg->sl.rq.v_l = 0;
1440 goto http_msg_rqline_eol;
1441 }
Willy Tarreau7552c032009-03-01 11:10:40 +0100[diff] [blame]1442 state = HTTP_MSG_ERROR;
1443 break;
1444
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1445 case HTTP_MSG_RQMETH_SP:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1446 http_msg_rqmeth_sp:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1447 if (likely(!HTTP_IS_LWS(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1448 msg->sl.rq.u = ptr - msg_start;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1449 goto http_msg_rquri;
1450 }
1451 if (likely(HTTP_IS_SPHT(*ptr)))
1452 EAT_AND_JUMP_OR_RETURN(http_msg_rqmeth_sp, HTTP_MSG_RQMETH_SP);
1453 /* so it's a CR/LF, meaning an HTTP 0.9 request */
1454 goto http_msg_req09_uri;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1455
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1456 case HTTP_MSG_RQURI:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1457 http_msg_rquri:
Willy Tarreau2e9506d2012-01-07 23:22:31 +0100[diff] [blame]1458 if (likely((unsigned char)(*ptr - 33) <= 93)) /* 33 to 126 included */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1459 EAT_AND_JUMP_OR_RETURN(http_msg_rquri, HTTP_MSG_RQURI);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1460
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1461 if (likely(HTTP_IS_SPHT(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1462 msg->sl.rq.u_l = ptr - msg_start - msg->sl.rq.u;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1463 EAT_AND_JUMP_OR_RETURN(http_msg_rquri_sp, HTTP_MSG_RQURI_SP);
1464 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1465
Willy Tarreau2e9506d2012-01-07 23:22:31 +0100[diff] [blame]1466 if (likely((unsigned char)*ptr >= 128)) {
Willy Tarreau422246e2012-01-07 23:54:13 +0100[diff] [blame]1467 /* non-ASCII chars are forbidden unless option
1468 * accept-invalid-http-request is enabled in the frontend.
1469 * In any case, we capture the faulty char.
Willy Tarreau2e9506d2012-01-07 23:22:31 +0100[diff] [blame]1470 */
Willy Tarreau422246e2012-01-07 23:54:13 +0100[diff] [blame]1471 if (msg->err_pos < -1)
1472 goto invalid_char;
1473 if (msg->err_pos == -1)
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1474 msg->err_pos = ptr - msg_start;
Willy Tarreau2e9506d2012-01-07 23:22:31 +0100[diff] [blame]1475 EAT_AND_JUMP_OR_RETURN(http_msg_rquri, HTTP_MSG_RQURI);
1476 }
1477
1478 if (likely(HTTP_IS_CRLF(*ptr))) {
1479 /* so it's a CR/LF, meaning an HTTP 0.9 request */
1480 goto http_msg_req09_uri_e;
1481 }
1482
1483 /* OK forbidden chars, 0..31 or 127 */
Willy Tarreau422246e2012-01-07 23:54:13 +0100[diff] [blame]1484 invalid_char:
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1485 msg->err_pos = ptr - msg_start;
Willy Tarreau2e9506d2012-01-07 23:22:31 +0100[diff] [blame]1486 state = HTTP_MSG_ERROR;
1487 break;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1488
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1489 case HTTP_MSG_RQURI_SP:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1490 http_msg_rquri_sp:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1491 if (likely(!HTTP_IS_LWS(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1492 msg->sl.rq.v = ptr - msg_start;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1493 goto http_msg_rqver;
1494 }
1495 if (likely(HTTP_IS_SPHT(*ptr)))
1496 EAT_AND_JUMP_OR_RETURN(http_msg_rquri_sp, HTTP_MSG_RQURI_SP);
1497 /* so it's a CR/LF, meaning an HTTP 0.9 request */
1498 goto http_msg_req09_ver;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1499
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1500 case HTTP_MSG_RQVER:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1501 http_msg_rqver:
Willy Tarreau4b89ad42007-03-04 18:13:58 +0100[diff] [blame]1502 if (likely(HTTP_IS_VER_TOKEN(*ptr)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1503 EAT_AND_JUMP_OR_RETURN(http_msg_rqver, HTTP_MSG_RQVER);
Willy Tarreau4b89ad42007-03-04 18:13:58 +0100[diff] [blame]1504
1505 if (likely(HTTP_IS_CRLF(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1506 msg->sl.rq.v_l = ptr - msg_start - msg->sl.rq.v;
Willy Tarreau4b89ad42007-03-04 18:13:58 +0100[diff] [blame]1507 http_msg_rqline_eol:
1508 /* We have seen the end of line. Note that we do not
1509 * necessarily have the \n yet, but at least we know that we
1510 * have EITHER \r OR \n, otherwise the request would not be
1511 * complete. We can then record the request length and return
1512 * to the caller which will be able to register it.
1513 */
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]1514 msg->sl.rq.l = ptr - msg_start - msg->sol;
Willy Tarreau4b89ad42007-03-04 18:13:58 +0100[diff] [blame]1515 return ptr;
1516 }
1517
1518 /* neither an HTTP_VER token nor a CRLF */
Willy Tarreau7552c032009-03-01 11:10:40 +0100[diff] [blame]1519 state = HTTP_MSG_ERROR;
1520 break;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1521
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1522 default:
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1523#ifdef DEBUG_FULL
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1524 fprintf(stderr, "FIXME !!!! impossible state at %s:%d = %d\n", __FILE__, __LINE__, state);
1525 exit(1);
1526#endif
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1527 ;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1528 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1529
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1530 http_msg_ood:
Willy Tarreau7552c032009-03-01 11:10:40 +0100[diff] [blame]1531 /* out of valid data */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1532 if (ret_state)
1533 *ret_state = state;
1534 if (ret_ptr)
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]1535 *ret_ptr = ptr - msg_start;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1536 return NULL;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1537}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1538
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1539/*
1540 * Returns the data from Authorization header. Function may be called more
1541 * than once so data is stored in txn->auth_data. When no header is found
1542 * 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]1543 * searching again for something we are unable to find anyway. However, if
1544 * the result if valid, the cache is not reused because we would risk to
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1545 * have the credentials overwritten by another stream in parallel.
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1546 */
1547
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]1548/* This bufffer is initialized in the file 'src/haproxy.c'. This length is
1549 * set according to global.tune.bufsize.
1550 */
Willy Tarreau7e2c6472012-10-29 20:44:36 +0100[diff] [blame]1551char *get_http_auth_buff;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1552
1553int
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1554get_http_auth(struct stream *s)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1555{
1556
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1557 struct http_txn *txn = s->txn;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1558 struct chunk auth_method;
1559 struct hdr_ctx ctx;
1560 char *h, *p;
1561 int len;
1562
1563#ifdef DEBUG_AUTH
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1564 printf("Auth for stream %p: %d\n", s, txn->auth.method);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1565#endif
1566
1567 if (txn->auth.method == HTTP_AUTH_WRONG)
1568 return 0;
1569
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1570 txn->auth.method = HTTP_AUTH_WRONG;
1571
1572 ctx.idx = 0;
Willy Tarreau844a7e72010-01-31 21:46:18 +0100[diff] [blame]1573
1574 if (txn->flags & TX_USE_PX_CONN) {
1575 h = "Proxy-Authorization";
1576 len = strlen(h);
1577 } else {
1578 h = "Authorization";
1579 len = strlen(h);
1580 }
1581
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1582 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]1583 return 0;
1584
1585 h = ctx.line + ctx.val;
1586
1587 p = memchr(h, ' ', ctx.vlen);
Willy Tarreau5c557d12016-03-13 08:17:02 +0100[diff] [blame]1588 len = p - h;
1589 if (!p || len <= 0)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1590 return 0;
1591
David Carlier7365f7d2016-04-04 11:54:42 +0100[diff] [blame]1592 if (chunk_initlen(&auth_method, h, 0, len) != 1)
1593 return 0;
1594
Willy Tarreau5c557d12016-03-13 08:17:02 +0100[diff] [blame]1595 chunk_initlen(&txn->auth.method_data, p + 1, 0, ctx.vlen - len - 1);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1596
1597 if (!strncasecmp("Basic", auth_method.str, auth_method.len)) {
1598
1599 len = base64dec(txn->auth.method_data.str, txn->auth.method_data.len,
Willy Tarreau7e2c6472012-10-29 20:44:36 +0100[diff] [blame]1600 get_http_auth_buff, global.tune.bufsize - 1);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1601
1602 if (len < 0)
1603 return 0;
1604
1605
1606 get_http_auth_buff[len] = '\0';
1607
1608 p = strchr(get_http_auth_buff, ':');
1609
1610 if (!p)
1611 return 0;
1612
1613 txn->auth.user = get_http_auth_buff;
1614 *p = '\0';
1615 txn->auth.pass = p+1;
1616
1617 txn->auth.method = HTTP_AUTH_BASIC;
1618 return 1;
1619 }
1620
1621 return 0;
1622}
1623
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1624
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1625/*
1626 * This function parses an HTTP message, either a request or a response,
Willy Tarreau8b1323e2012-03-09 14:46:19 +0100[diff] [blame]1627 * depending on the initial msg->msg_state. The caller is responsible for
1628 * ensuring that the message does not wrap. The function can be preempted
1629 * everywhere when data are missing and recalled at the exact same location
1630 * with no information loss. The message may even be realigned between two
1631 * calls. The header index is re-initialized when switching from
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]1632 * MSG_R[PQ]BEFORE to MSG_RPVER|MSG_RQMETH. It modifies msg->sol among other
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]1633 * fields. Note that msg->sol will be initialized after completing the first
1634 * state, so that none of the msg pointers has to be initialized prior to the
1635 * first call.
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1636 */
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]1637void http_msg_analyzer(struct http_msg *msg, struct hdr_idx *idx)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1638{
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1639 enum ht_state state; /* updated only when leaving the FSM */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1640 register char *ptr, *end; /* request pointers, to avoid dereferences */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1641 struct buffer *buf;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1642
Willy Tarreaub326fcc2007-03-03 13:54:32 +0100[diff] [blame]1643 state = msg->msg_state;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1644 buf = msg->chn->buf;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1645 ptr = buf->p + msg->next;
1646 end = buf->p + buf->i;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1647
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1648 if (unlikely(ptr >= end))
1649 goto http_msg_ood;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1650
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1651 switch (state) {
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1652 /*
1653 * First, states that are specific to the response only.
1654 * We check them first so that request and headers are
1655 * closer to each other (accessed more often).
1656 */
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1657 case HTTP_MSG_RPBEFORE:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1658 http_msg_rpbefore:
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1659 if (likely(HTTP_IS_TOKEN(*ptr))) {
Willy Tarreau15de77e2010-01-02 21:59:16 +0100[diff] [blame]1660 /* we have a start of message, but we have to check
1661 * first if we need to remove some CRLF. We can only
Willy Tarreau2e046c62012-03-01 16:08:30 +0100[diff] [blame]1662 * do this when o=0.
Willy Tarreau15de77e2010-01-02 21:59:16 +0100[diff] [blame]1663 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1664 if (unlikely(ptr != buf->p)) {
1665 if (buf->o)
Willy Tarreau15de77e2010-01-02 21:59:16 +0100[diff] [blame]1666 goto http_msg_ood;
Willy Tarreau1d3bcce2009-12-27 15:50:06 +0100[diff] [blame]1667 /* Remove empty leading lines, as recommended by RFC2616. */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1668 bi_fast_delete(buf, ptr - buf->p);
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1669 }
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]1670 msg->sol = 0;
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]1671 msg->sl.st.l = 0; /* used in debug mode */
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1672 hdr_idx_init(idx);
1673 state = HTTP_MSG_RPVER;
1674 goto http_msg_rpver;
1675 }
1676
1677 if (unlikely(!HTTP_IS_CRLF(*ptr)))
1678 goto http_msg_invalid;
1679
1680 if (unlikely(*ptr == '\n'))
1681 EAT_AND_JUMP_OR_RETURN(http_msg_rpbefore, HTTP_MSG_RPBEFORE);
1682 EAT_AND_JUMP_OR_RETURN(http_msg_rpbefore_cr, HTTP_MSG_RPBEFORE_CR);
1683 /* stop here */
1684
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1685 case HTTP_MSG_RPBEFORE_CR:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1686 http_msg_rpbefore_cr:
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1687 EXPECT_LF_HERE(ptr, http_msg_invalid);
1688 EAT_AND_JUMP_OR_RETURN(http_msg_rpbefore, HTTP_MSG_RPBEFORE);
1689 /* stop here */
1690
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1691 case HTTP_MSG_RPVER:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1692 http_msg_rpver:
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1693 case HTTP_MSG_RPVER_SP:
1694 case HTTP_MSG_RPCODE:
1695 case HTTP_MSG_RPCODE_SP:
1696 case HTTP_MSG_RPREASON:
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1697 ptr = (char *)http_parse_stsline(msg,
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]1698 state, ptr, end,
1699 &msg->next, &msg->msg_state);
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1700 if (unlikely(!ptr))
1701 return;
1702
1703 /* we have a full response and we know that we have either a CR
1704 * or an LF at <ptr>.
1705 */
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1706 hdr_idx_set_start(idx, msg->sl.st.l, *ptr == '\r');
1707
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1708 msg->sol = ptr - buf->p;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1709 if (likely(*ptr == '\r'))
1710 EAT_AND_JUMP_OR_RETURN(http_msg_rpline_end, HTTP_MSG_RPLINE_END);
1711 goto http_msg_rpline_end;
1712
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1713 case HTTP_MSG_RPLINE_END:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1714 http_msg_rpline_end:
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1715 /* msg->sol must point to the first of CR or LF. */
1716 EXPECT_LF_HERE(ptr, http_msg_invalid);
1717 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_first, HTTP_MSG_HDR_FIRST);
1718 /* stop here */
1719
1720 /*
1721 * Second, states that are specific to the request only
1722 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1723 case HTTP_MSG_RQBEFORE:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1724 http_msg_rqbefore:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1725 if (likely(HTTP_IS_TOKEN(*ptr))) {
Willy Tarreau15de77e2010-01-02 21:59:16 +0100[diff] [blame]1726 /* we have a start of message, but we have to check
1727 * first if we need to remove some CRLF. We can only
Willy Tarreau2e046c62012-03-01 16:08:30 +0100[diff] [blame]1728 * do this when o=0.
Willy Tarreau15de77e2010-01-02 21:59:16 +0100[diff] [blame]1729 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1730 if (likely(ptr != buf->p)) {
1731 if (buf->o)
Willy Tarreau15de77e2010-01-02 21:59:16 +0100[diff] [blame]1732 goto http_msg_ood;
Willy Tarreau1d3bcce2009-12-27 15:50:06 +0100[diff] [blame]1733 /* Remove empty leading lines, as recommended by RFC2616. */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1734 bi_fast_delete(buf, ptr - buf->p);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1735 }
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]1736 msg->sol = 0;
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]1737 msg->sl.rq.l = 0; /* used in debug mode */
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1738 state = HTTP_MSG_RQMETH;
1739 goto http_msg_rqmeth;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1740 }
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1741
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1742 if (unlikely(!HTTP_IS_CRLF(*ptr)))
1743 goto http_msg_invalid;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1744
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1745 if (unlikely(*ptr == '\n'))
1746 EAT_AND_JUMP_OR_RETURN(http_msg_rqbefore, HTTP_MSG_RQBEFORE);
1747 EAT_AND_JUMP_OR_RETURN(http_msg_rqbefore_cr, HTTP_MSG_RQBEFORE_CR);
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1748 /* stop here */
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1749
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1750 case HTTP_MSG_RQBEFORE_CR:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1751 http_msg_rqbefore_cr:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1752 EXPECT_LF_HERE(ptr, http_msg_invalid);
1753 EAT_AND_JUMP_OR_RETURN(http_msg_rqbefore, HTTP_MSG_RQBEFORE);
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1754 /* stop here */
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1755
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1756 case HTTP_MSG_RQMETH:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1757 http_msg_rqmeth:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1758 case HTTP_MSG_RQMETH_SP:
1759 case HTTP_MSG_RQURI:
1760 case HTTP_MSG_RQURI_SP:
1761 case HTTP_MSG_RQVER:
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1762 ptr = (char *)http_parse_reqline(msg,
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]1763 state, ptr, end,
1764 &msg->next, &msg->msg_state);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1765 if (unlikely(!ptr))
1766 return;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1767
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1768 /* we have a full request and we know that we have either a CR
1769 * or an LF at <ptr>.
1770 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1771 hdr_idx_set_start(idx, msg->sl.rq.l, *ptr == '\r');
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1772
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1773 msg->sol = ptr - buf->p;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1774 if (likely(*ptr == '\r'))
1775 EAT_AND_JUMP_OR_RETURN(http_msg_rqline_end, HTTP_MSG_RQLINE_END);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1776 goto http_msg_rqline_end;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1777
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1778 case HTTP_MSG_RQLINE_END:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1779 http_msg_rqline_end:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1780 /* check for HTTP/0.9 request : no version information available.
1781 * msg->sol must point to the first of CR or LF.
1782 */
1783 if (unlikely(msg->sl.rq.v_l == 0))
1784 goto http_msg_last_lf;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1785
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1786 EXPECT_LF_HERE(ptr, http_msg_invalid);
1787 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_first, HTTP_MSG_HDR_FIRST);
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1788 /* stop here */
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1789
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1790 /*
1791 * Common states below
1792 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1793 case HTTP_MSG_HDR_FIRST:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1794 http_msg_hdr_first:
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1795 msg->sol = ptr - buf->p;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1796 if (likely(!HTTP_IS_CRLF(*ptr))) {
1797 goto http_msg_hdr_name;
1798 }
1799
1800 if (likely(*ptr == '\r'))
1801 EAT_AND_JUMP_OR_RETURN(http_msg_last_lf, HTTP_MSG_LAST_LF);
1802 goto http_msg_last_lf;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1803
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1804 case HTTP_MSG_HDR_NAME:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1805 http_msg_hdr_name:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1806 /* assumes msg->sol points to the first char */
1807 if (likely(HTTP_IS_TOKEN(*ptr)))
1808 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_name, HTTP_MSG_HDR_NAME);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1809
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]1810 if (likely(*ptr == ':'))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1811 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_l1_sp, HTTP_MSG_HDR_L1_SP);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1812
Willy Tarreau32a4ec02009-04-02 11:35:18 +0200[diff] [blame]1813 if (likely(msg->err_pos < -1) || *ptr == '\n')
1814 goto http_msg_invalid;
1815
1816 if (msg->err_pos == -1) /* capture error pointer */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1817 msg->err_pos = ptr - buf->p; /* >= 0 now */
Willy Tarreau32a4ec02009-04-02 11:35:18 +0200[diff] [blame]1818
1819 /* and we still accept this non-token character */
1820 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_name, HTTP_MSG_HDR_NAME);
Willy Tarreau230fd0b2006-12-17 12:05:00 +0100[diff] [blame]1821
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1822 case HTTP_MSG_HDR_L1_SP:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1823 http_msg_hdr_l1_sp:
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]1824 /* assumes msg->sol points to the first char */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1825 if (likely(HTTP_IS_SPHT(*ptr)))
1826 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_l1_sp, HTTP_MSG_HDR_L1_SP);
Willy Tarreau230fd0b2006-12-17 12:05:00 +0100[diff] [blame]1827
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1828 /* header value can be basically anything except CR/LF */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1829 msg->sov = ptr - buf->p;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1830
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1831 if (likely(!HTTP_IS_CRLF(*ptr))) {
1832 goto http_msg_hdr_val;
1833 }
1834
1835 if (likely(*ptr == '\r'))
1836 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_l1_lf, HTTP_MSG_HDR_L1_LF);
1837 goto http_msg_hdr_l1_lf;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1838
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1839 case HTTP_MSG_HDR_L1_LF:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1840 http_msg_hdr_l1_lf:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1841 EXPECT_LF_HERE(ptr, http_msg_invalid);
1842 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_l1_lws, HTTP_MSG_HDR_L1_LWS);
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1843
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1844 case HTTP_MSG_HDR_L1_LWS:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1845 http_msg_hdr_l1_lws:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1846 if (likely(HTTP_IS_SPHT(*ptr))) {
1847 /* replace HT,CR,LF with spaces */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1848 for (; buf->p + msg->sov < ptr; msg->sov++)
1849 buf->p[msg->sov] = ' ';
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1850 goto http_msg_hdr_l1_sp;
1851 }
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]1852 /* we had a header consisting only in spaces ! */
Willy Tarreau12e48b32012-03-05 16:57:34 +0100[diff] [blame]1853 msg->eol = msg->sov;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1854 goto http_msg_complete_header;
1855
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1856 case HTTP_MSG_HDR_VAL:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1857 http_msg_hdr_val:
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]1858 /* assumes msg->sol points to the first char, and msg->sov
1859 * points to the first character of the value.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1860 */
1861 if (likely(!HTTP_IS_CRLF(*ptr)))
1862 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_val, HTTP_MSG_HDR_VAL);
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1863
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1864 msg->eol = ptr - buf->p;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1865 /* Note: we could also copy eol into ->eoh so that we have the
1866 * real header end in case it ends with lots of LWS, but is this
1867 * really needed ?
1868 */
1869 if (likely(*ptr == '\r'))
1870 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_l2_lf, HTTP_MSG_HDR_L2_LF);
1871 goto http_msg_hdr_l2_lf;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1872
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1873 case HTTP_MSG_HDR_L2_LF:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1874 http_msg_hdr_l2_lf:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1875 EXPECT_LF_HERE(ptr, http_msg_invalid);
1876 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_l2_lws, HTTP_MSG_HDR_L2_LWS);
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1877
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1878 case HTTP_MSG_HDR_L2_LWS:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1879 http_msg_hdr_l2_lws:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1880 if (unlikely(HTTP_IS_SPHT(*ptr))) {
1881 /* LWS: replace HT,CR,LF with spaces */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1882 for (; buf->p + msg->eol < ptr; msg->eol++)
1883 buf->p[msg->eol] = ' ';
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1884 goto http_msg_hdr_val;
1885 }
1886 http_msg_complete_header:
1887 /*
1888 * It was a new header, so the last one is finished.
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]1889 * Assumes msg->sol points to the first char, msg->sov points
1890 * to the first character of the value and msg->eol to the
1891 * first CR or LF so we know how the line ends. We insert last
1892 * header into the index.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1893 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1894 if (unlikely(hdr_idx_add(msg->eol - msg->sol, buf->p[msg->eol] == '\r',
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1895 idx, idx->tail) < 0))
1896 goto http_msg_invalid;
Willy Tarreau230fd0b2006-12-17 12:05:00 +0100[diff] [blame]1897
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1898 msg->sol = ptr - buf->p;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1899 if (likely(!HTTP_IS_CRLF(*ptr))) {
1900 goto http_msg_hdr_name;
1901 }
1902
1903 if (likely(*ptr == '\r'))
1904 EAT_AND_JUMP_OR_RETURN(http_msg_last_lf, HTTP_MSG_LAST_LF);
1905 goto http_msg_last_lf;
Willy Tarreau230fd0b2006-12-17 12:05:00 +0100[diff] [blame]1906
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1907 case HTTP_MSG_LAST_LF:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1908 http_msg_last_lf:
Willy Tarreau0558a022014-03-13 15:48:45 +0100[diff] [blame]1909 /* Assumes msg->sol points to the first of either CR or LF.
1910 * Sets ->sov and ->next to the total header length, ->eoh to
1911 * the last CRLF, and ->eol to the last CRLF length (1 or 2).
1912 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1913 EXPECT_LF_HERE(ptr, http_msg_invalid);
1914 ptr++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1915 msg->sov = msg->next = ptr - buf->p;
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]1916 msg->eoh = msg->sol;
1917 msg->sol = 0;
Willy Tarreau0558a022014-03-13 15:48:45 +0100[diff] [blame]1918 msg->eol = msg->sov - msg->eoh;
Willy Tarreaub326fcc2007-03-03 13:54:32 +0100[diff] [blame]1919 msg->msg_state = HTTP_MSG_BODY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1920 return;
Willy Tarreaub56928a2012-04-16 14:51:55 +0200[diff] [blame]1921
1922 case HTTP_MSG_ERROR:
1923 /* this may only happen if we call http_msg_analyser() twice with an error */
1924 break;
1925
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1926 default:
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1927#ifdef DEBUG_FULL
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1928 fprintf(stderr, "FIXME !!!! impossible state at %s:%d = %d\n", __FILE__, __LINE__, state);
1929 exit(1);
Willy Tarreau230fd0b2006-12-17 12:05:00 +0100[diff] [blame]1930#endif
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1931 ;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1932 }
1933 http_msg_ood:
1934 /* out of data */
Willy Tarreaub326fcc2007-03-03 13:54:32 +0100[diff] [blame]1935 msg->msg_state = state;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1936 msg->next = ptr - buf->p;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1937 return;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1938
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1939 http_msg_invalid:
1940 /* invalid message */
Willy Tarreaub326fcc2007-03-03 13:54:32 +0100[diff] [blame]1941 msg->msg_state = HTTP_MSG_ERROR;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1942 msg->next = ptr - buf->p;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1943 return;
1944}
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]1945
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1946/* convert an HTTP/0.9 request into an HTTP/1.0 request. Returns 1 if the
1947 * conversion succeeded, 0 in case of error. If the request was already 1.X,
1948 * nothing is done and 1 is returned.
1949 */
Willy Tarreau418bfcc2012-03-09 13:56:20 +0100[diff] [blame]1950static int http_upgrade_v09_to_v10(struct http_txn *txn)
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1951{
1952 int delta;
1953 char *cur_end;
Willy Tarreau418bfcc2012-03-09 13:56:20 +0100[diff] [blame]1954 struct http_msg *msg = &txn->req;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1955
1956 if (msg->sl.rq.v_l != 0)
1957 return 1;
1958
Apollon Oikonomopoulos25a15222014-04-06 02:46:00 +0300[diff] [blame]1959 /* RFC 1945 allows only GET for HTTP/0.9 requests */
1960 if (txn->meth != HTTP_METH_GET)
1961 return 0;
1962
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1963 cur_end = msg->chn->buf->p + msg->sl.rq.l;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1964 delta = 0;
1965
1966 if (msg->sl.rq.u_l == 0) {
Apollon Oikonomopoulos25a15222014-04-06 02:46:00 +0300[diff] [blame]1967 /* HTTP/0.9 requests *must* have a request URI, per RFC 1945 */
1968 return 0;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1969 }
1970 /* add HTTP version */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1971 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]1972 http_msg_move_end(msg, delta);
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1973 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1974 cur_end = (char *)http_parse_reqline(msg,
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1975 HTTP_MSG_RQMETH,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1976 msg->chn->buf->p, cur_end + 1,
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1977 NULL, NULL);
1978 if (unlikely(!cur_end))
1979 return 0;
1980
1981 /* we have a full HTTP/1.0 request now and we know that
1982 * we have either a CR or an LF at <ptr>.
1983 */
1984 hdr_idx_set_start(&txn->hdr_idx, msg->sl.rq.l, *cur_end == '\r');
1985 return 1;
1986}
1987
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1988/* Parse the Connection: header of an HTTP request, looking for both "close"
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1989 * and "keep-alive" values. If we already know that some headers may safely
1990 * be removed, we remove them now. The <to_del> flags are used for that :
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1991 * - bit 0 means remove "close" headers (in HTTP/1.0 requests/responses)
1992 * - 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]1993 * Presence of the "Upgrade" token is also checked and reported.
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1994 * The TX_HDR_CONN_* flags are adjusted in txn->flags depending on what was
1995 * found, and TX_CON_*_SET is adjusted depending on what is left so only
1996 * harmless combinations may be removed. Do not call that after changes have
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1997 * been processed.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1998 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1999void 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]2000{
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2001 struct hdr_ctx ctx;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2002 const char *hdr_val = "Connection";
2003 int hdr_len = 10;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2004
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2005 if (txn->flags & TX_HDR_CONN_PRS)
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2006 return;
2007
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2008 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
2009 hdr_val = "Proxy-Connection";
2010 hdr_len = 16;
2011 }
2012
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2013 ctx.idx = 0;
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2014 txn->flags &= ~(TX_CON_KAL_SET|TX_CON_CLO_SET);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2015 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]2016 if (ctx.vlen >= 10 && word_match(ctx.line + ctx.val, ctx.vlen, "keep-alive", 10)) {
2017 txn->flags |= TX_HDR_CONN_KAL;
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2018 if (to_del & 2)
2019 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2020 else
2021 txn->flags |= TX_CON_KAL_SET;
2022 }
2023 else if (ctx.vlen >= 5 && word_match(ctx.line + ctx.val, ctx.vlen, "close", 5)) {
2024 txn->flags |= TX_HDR_CONN_CLO;
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2025 if (to_del & 1)
2026 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2027 else
2028 txn->flags |= TX_CON_CLO_SET;
2029 }
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]2030 else if (ctx.vlen >= 7 && word_match(ctx.line + ctx.val, ctx.vlen, "upgrade", 7)) {
2031 txn->flags |= TX_HDR_CONN_UPG;
2032 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2033 }
2034
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2035 txn->flags |= TX_HDR_CONN_PRS;
2036 return;
2037}
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2038
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2039/* Apply desired changes on the Connection: header. Values may be removed and/or
2040 * added depending on the <wanted> flags, which are exclusively composed of
2041 * TX_CON_CLO_SET and TX_CON_KAL_SET, depending on what flags are desired. The
2042 * TX_CON_*_SET flags are adjusted in txn->flags depending on what is left.
2043 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2044void http_change_connection_header(struct http_txn *txn, struct http_msg *msg, int wanted)
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2045{
2046 struct hdr_ctx ctx;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2047 const char *hdr_val = "Connection";
2048 int hdr_len = 10;
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2049
2050 ctx.idx = 0;
2051
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2052
2053 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
2054 hdr_val = "Proxy-Connection";
2055 hdr_len = 16;
2056 }
2057
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2058 txn->flags &= ~(TX_CON_CLO_SET | TX_CON_KAL_SET);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2059 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]2060 if (ctx.vlen >= 10 && word_match(ctx.line + ctx.val, ctx.vlen, "keep-alive", 10)) {
2061 if (wanted & TX_CON_KAL_SET)
2062 txn->flags |= TX_CON_KAL_SET;
2063 else
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2064 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2065 }
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2066 else if (ctx.vlen >= 5 && word_match(ctx.line + ctx.val, ctx.vlen, "close", 5)) {
2067 if (wanted & TX_CON_CLO_SET)
2068 txn->flags |= TX_CON_CLO_SET;
2069 else
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2070 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreau0dfdf192010-01-05 11:33:11 +0100[diff] [blame]2071 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2072 }
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2073
2074 if (wanted == (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
2075 return;
2076
2077 if ((wanted & TX_CON_CLO_SET) && !(txn->flags & TX_CON_CLO_SET)) {
2078 txn->flags |= TX_CON_CLO_SET;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2079 hdr_val = "Connection: close";
2080 hdr_len = 17;
2081 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
2082 hdr_val = "Proxy-Connection: close";
2083 hdr_len = 23;
2084 }
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2085 http_header_add_tail2(msg, &txn->hdr_idx, hdr_val, hdr_len);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2086 }
2087
2088 if ((wanted & TX_CON_KAL_SET) && !(txn->flags & TX_CON_KAL_SET)) {
2089 txn->flags |= TX_CON_KAL_SET;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2090 hdr_val = "Connection: keep-alive";
2091 hdr_len = 22;
2092 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
2093 hdr_val = "Proxy-Connection: keep-alive";
2094 hdr_len = 28;
2095 }
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2096 http_header_add_tail2(msg, &txn->hdr_idx, hdr_val, hdr_len);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2097 }
2098 return;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2099}
2100
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]2101/* Parse the chunk size at msg->next. Once done, caller should adjust ->next to
2102 * point to the first byte of data after the chunk size, so that we know we can
2103 * forward exactly msg->next bytes. msg->sol contains the exact number of bytes
2104 * forming the chunk size. That way it is always possible to differentiate
2105 * between the start of the body and the start of the data. Return the number
2106 * of byte parsed on success, 0 when some data is missing, <0 on error. Note:
2107 * this function is designed to parse wrapped CRLF at the end of the buffer.
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2108 */
Willy Tarreau24e6d972012-10-26 00:49:52 +0200[diff] [blame]2109static inline int http_parse_chunk_size(struct http_msg *msg)
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2110{
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2111 const struct buffer *buf = msg->chn->buf;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2112 const char *ptr = b_ptr(buf, msg->next);
Willy Tarreau4baf44b2012-03-09 14:10:20 +0100[diff] [blame]2113 const char *ptr_old = ptr;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2114 const char *end = buf->data + buf->size;
2115 const char *stop = bi_end(buf);
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2116 unsigned int chunk = 0;
2117
2118 /* The chunk size is in the following form, though we are only
2119 * interested in the size and CRLF :
2120 * 1*HEXDIGIT *WSP *[ ';' extensions ] CRLF
2121 */
2122 while (1) {
2123 int c;
Willy Tarreau363a5bb2012-03-02 20:14:45 +0100[diff] [blame]2124 if (ptr == stop)
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2125 return 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2126 c = hex2i(*ptr);
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2127 if (c < 0) /* not a hex digit anymore */
2128 break;
Willy Tarreau0161d622013-04-02 01:26:55 +0200[diff] [blame]2129 if (unlikely(++ptr >= end))
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2130 ptr = buf->data;
Willy Tarreau431946e2012-02-24 19:20:12 +0100[diff] [blame]2131 if (chunk & 0xF8000000) /* integer overflow will occur if result >= 2GB */
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2132 goto error;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2133 chunk = (chunk << 4) + c;
2134 }
2135
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2136 /* empty size not allowed */
Willy Tarreau0161d622013-04-02 01:26:55 +0200[diff] [blame]2137 if (unlikely(ptr == ptr_old))
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2138 goto error;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2139
2140 while (http_is_spht[(unsigned char)*ptr]) {
2141 if (++ptr >= end)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2142 ptr = buf->data;
Willy Tarreau0161d622013-04-02 01:26:55 +0200[diff] [blame]2143 if (unlikely(ptr == stop))
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2144 return 0;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2145 }
2146
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2147 /* Up to there, we know that at least one byte is present at *ptr. Check
2148 * for the end of chunk size.
2149 */
2150 while (1) {
2151 if (likely(HTTP_IS_CRLF(*ptr))) {
2152 /* we now have a CR or an LF at ptr */
2153 if (likely(*ptr == '\r')) {
2154 if (++ptr >= end)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2155 ptr = buf->data;
Willy Tarreau363a5bb2012-03-02 20:14:45 +0100[diff] [blame]2156 if (ptr == stop)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2157 return 0;
2158 }
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2159
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2160 if (*ptr != '\n')
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2161 goto error;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2162 if (++ptr >= end)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2163 ptr = buf->data;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2164 /* done */
2165 break;
2166 }
2167 else if (*ptr == ';') {
2168 /* chunk extension, ends at next CRLF */
2169 if (++ptr >= end)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2170 ptr = buf->data;
Willy Tarreau363a5bb2012-03-02 20:14:45 +0100[diff] [blame]2171 if (ptr == stop)
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2172 return 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2173
2174 while (!HTTP_IS_CRLF(*ptr)) {
2175 if (++ptr >= end)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2176 ptr = buf->data;
Willy Tarreau363a5bb2012-03-02 20:14:45 +0100[diff] [blame]2177 if (ptr == stop)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2178 return 0;
2179 }
2180 /* we have a CRLF now, loop above */
2181 continue;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2182 }
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2183 else
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2184 goto error;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2185 }
2186
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]2187 /* OK we found our CRLF and now <ptr> points to the next byte, which may
2188 * or may not be present. We save the number of bytes parsed into
2189 * msg->sol.
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2190 */
Willy Tarreauc24715e2014-04-17 15:21:20 +0200[diff] [blame]2191 msg->sol = ptr - ptr_old;
Willy Tarreau0161d622013-04-02 01:26:55 +0200[diff] [blame]2192 if (unlikely(ptr < ptr_old))
Willy Tarreauc24715e2014-04-17 15:21:20 +0200[diff] [blame]2193 msg->sol += buf->size;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]2194 msg->chunk_len = chunk;
2195 msg->body_len += chunk;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]2196 return msg->sol;
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2197 error:
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2198 msg->err_pos = buffer_count(buf, buf->p, ptr);
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2199 return -1;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2200}
2201
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]2202/* This function skips trailers in the buffer associated with HTTP message
2203 * <msg>. The first visited position is msg->next. If the end of the trailers is
2204 * found, the function returns >0. So, the caller can automatically schedul it
2205 * to be forwarded, and switch msg->msg_state to HTTP_MSG_DONE. If not enough
2206 * data are available, the function does not change anything except maybe
2207 * msg->sol if it could parse some lines, and returns zero. If a parse error
2208 * is encountered, the function returns < 0 and does not change anything except
2209 * maybe msg->sol. Note that the message must already be in HTTP_MSG_TRAILERS
2210 * state before calling this function, which implies that all non-trailers data
2211 * have already been scheduled for forwarding, and that msg->next exactly
2212 * matches the length of trailers already parsed and not forwarded. It is also
2213 * important to note that this function is designed to be able to parse wrapped
2214 * headers at end of buffer.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2215 */
Willy Tarreau24e6d972012-10-26 00:49:52 +0200[diff] [blame]2216static int http_forward_trailers(struct http_msg *msg)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2217{
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2218 const struct buffer *buf = msg->chn->buf;
Willy Tarreau4baf44b2012-03-09 14:10:20 +0100[diff] [blame]2219
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]2220 /* we have msg->next which points to next line. Look for CRLF. But
2221 * first, we reset msg->sol */
2222 msg->sol = 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2223 while (1) {
Willy Tarreau4baf44b2012-03-09 14:10:20 +0100[diff] [blame]2224 const char *p1 = NULL, *p2 = NULL;
Christopher Faulet2fb28802015-12-01 10:40:57 +0100[diff] [blame]2225 const char *start = b_ptr(buf, msg->next + msg->sol);
2226 const char *stop = bi_end(buf);
2227 const char *ptr = start;
2228 int bytes = 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2229
2230 /* scan current line and stop at LF or CRLF */
2231 while (1) {
Willy Tarreau363a5bb2012-03-02 20:14:45 +0100[diff] [blame]2232 if (ptr == stop)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2233 return 0;
2234
2235 if (*ptr == '\n') {
2236 if (!p1)
2237 p1 = ptr;
2238 p2 = ptr;
2239 break;
2240 }
2241
2242 if (*ptr == '\r') {
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2243 if (p1) {
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2244 msg->err_pos = buffer_count(buf, buf->p, ptr);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2245 return -1;
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2246 }
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2247 p1 = ptr;
2248 }
2249
2250 ptr++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2251 if (ptr >= buf->data + buf->size)
2252 ptr = buf->data;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2253 }
2254
2255 /* after LF; point to beginning of next line */
2256 p2++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2257 if (p2 >= buf->data + buf->size)
2258 p2 = buf->data;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2259
Christopher Faulet2fb28802015-12-01 10:40:57 +0100[diff] [blame]2260 bytes = p2 - start;
Willy Tarreau638cd022010-01-03 07:42:04 +0100[diff] [blame]2261 if (bytes < 0)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2262 bytes += buf->size;
Christopher Faulet2fb28802015-12-01 10:40:57 +0100[diff] [blame]2263 msg->sol += bytes;
Willy Tarreau638cd022010-01-03 07:42:04 +0100[diff] [blame]2264
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]2265 /* LF/CRLF at beginning of line => end of trailers at p2.
2266 * Everything was scheduled for forwarding, there's nothing left
Christopher Faulet2fb28802015-12-01 10:40:57 +0100[diff] [blame]2267 * from this message. */
2268 if (p1 == start)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2269 return 1;
Christopher Faulet2fb28802015-12-01 10:40:57 +0100[diff] [blame]2270
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2271 /* OK, next line then */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2272 }
2273}
2274
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]2275/* This function may be called only in HTTP_MSG_CHUNK_CRLF. It reads the CRLF or
2276 * a possible LF alone at the end of a chunk. The caller should adjust msg->next
2277 * in order to include this part into the next forwarding phase. Note that the
2278 * caller must ensure that ->p points to the first byte to parse. It returns
2279 * the number of bytes parsed on success, so the caller can set msg_state to
2280 * HTTP_MSG_CHUNK_SIZE. If not enough data are available, the function does not
2281 * change anything and returns zero. If a parse error is encountered, the
2282 * function returns < 0. Note: this function is designed to parse wrapped CRLF
2283 * at the end of the buffer.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2284 */
Willy Tarreau24e6d972012-10-26 00:49:52 +0200[diff] [blame]2285static inline int http_skip_chunk_crlf(struct http_msg *msg)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2286{
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2287 const struct buffer *buf = msg->chn->buf;
Willy Tarreau4baf44b2012-03-09 14:10:20 +0100[diff] [blame]2288 const char *ptr;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2289 int bytes;
2290
2291 /* NB: we'll check data availabilty at the end. It's not a
2292 * problem because whatever we match first will be checked
2293 * against the correct length.
2294 */
2295 bytes = 1;
Willy Tarreau0669d7d2014-04-17 11:40:10 +0200[diff] [blame]2296 ptr = b_ptr(buf, msg->next);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2297 if (*ptr == '\r') {
2298 bytes++;
2299 ptr++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2300 if (ptr >= buf->data + buf->size)
2301 ptr = buf->data;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2302 }
2303
Willy Tarreau0669d7d2014-04-17 11:40:10 +0200[diff] [blame]2304 if (msg->next + bytes > buf->i)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2305 return 0;
2306
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2307 if (*ptr != '\n') {
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2308 msg->err_pos = buffer_count(buf, buf->p, ptr);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2309 return -1;
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2310 }
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]2311 return bytes;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2312}
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2313
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]2314/* Parses a qvalue and returns it multipled by 1000, from 0 to 1000. If the
2315 * value is larger than 1000, it is bound to 1000. The parser consumes up to
2316 * 1 digit, one dot and 3 digits and stops on the first invalid character.
2317 * Unparsable qvalues return 1000 as "q=1.000".
2318 */
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]2319int parse_qvalue(const char *qvalue, const char **end)
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]2320{
2321 int q = 1000;
2322
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]2323 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]2324 goto out;
2325 q = (*qvalue++ - '0') * 1000;
2326
2327 if (*qvalue++ != '.')
2328 goto out;
2329
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]2330 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]2331 goto out;
2332 q += (*qvalue++ - '0') * 100;
2333
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]2334 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]2335 goto out;
2336 q += (*qvalue++ - '0') * 10;
2337
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]2338 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]2339 goto out;
2340 q += (*qvalue++ - '0') * 1;
2341 out:
2342 if (q > 1000)
2343 q = 1000;
Willy Tarreau38b3aa52014-04-22 23:32:05 +0200[diff] [blame]2344 if (end)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]2345 *end = qvalue;
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]2346 return q;
2347}
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]2348
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2349void 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]2350{
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]2351 struct proxy *fe = strm_fe(s);
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2352 int tmp = TX_CON_WANT_KAL;
2353
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2354 if (!((fe->options2|s->be->options2) & PR_O2_FAKE_KA)) {
2355 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_TUN ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2356 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_TUN)
2357 tmp = TX_CON_WANT_TUN;
2358
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2359 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2360 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)
2361 tmp = TX_CON_WANT_TUN;
2362 }
2363
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2364 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2365 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL) {
2366 /* option httpclose + server_close => forceclose */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2367 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2368 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)
2369 tmp = TX_CON_WANT_CLO;
2370 else
2371 tmp = TX_CON_WANT_SCL;
2372 }
2373
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2374 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_FCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2375 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_FCL)
2376 tmp = TX_CON_WANT_CLO;
2377
2378 if ((txn->flags & TX_CON_WANT_MSK) < tmp)
2379 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | tmp;
2380
2381 if (!(txn->flags & TX_HDR_CONN_PRS) &&
2382 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) {
2383 /* parse the Connection header and possibly clean it */
2384 int to_del = 0;
2385 if ((msg->flags & HTTP_MSGF_VER_11) ||
2386 ((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2387 !((fe->options2|s->be->options2) & PR_O2_FAKE_KA)))
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2388 to_del |= 2; /* remove "keep-alive" */
2389 if (!(msg->flags & HTTP_MSGF_VER_11))
2390 to_del |= 1; /* remove "close" */
2391 http_parse_connection_header(txn, msg, to_del);
2392 }
2393
2394 /* check if client or config asks for explicit close in KAL/SCL */
2395 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
2396 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) &&
2397 ((txn->flags & TX_HDR_CONN_CLO) || /* "connection: close" */
2398 (!(msg->flags & HTTP_MSGF_VER_11) && !(txn->flags & TX_HDR_CONN_KAL)) || /* no "connection: k-a" in 1.0 */
2399 !(msg->flags & HTTP_MSGF_XFER_LEN) || /* no length known => close */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2400 fe->state == PR_STSTOPPED)) /* frontend is stopping */
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2401 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
2402}
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]2403
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2404/* This stream analyser waits for a complete HTTP request. It returns 1 if the
2405 * processing can continue on next analysers, or zero if it either needs more
2406 * data or wants to immediately abort the request (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]2407 * 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]2408 * when it has nothing left to do, and may remove any analyser when it wants to
2409 * abort.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2410 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2411int http_wait_for_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2412{
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2413 /*
2414 * We will parse the partial (or complete) lines.
2415 * We will check the request syntax, and also join multi-line
2416 * headers. An index of all the lines will be elaborated while
2417 * parsing.
2418 *
2419 * For the parsing, we use a 28 states FSM.
2420 *
2421 * Here is the information we currently have :
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2422 * req->buf->p = beginning of request
2423 * req->buf->p + msg->eoh = end of processed headers / start of current one
2424 * req->buf->p + req->buf->i = end of input data
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]2425 * msg->eol = end of current header or line (LF or CRLF)
2426 * msg->next = first non-visited byte
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2427 *
2428 * 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]2429 * we will set a few fields (txn->meth, sn->flags/SF_REDIRECTABLE).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2430 * We also check for monitor-uri, logging, HTTP/0.9 to 1.0 conversion, and
2431 * finally headers capture.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2432 */
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]2433
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2434 int cur_idx;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]2435 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2436 struct http_txn *txn = s->txn;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2437 struct http_msg *msg = &txn->req;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2438 struct hdr_ctx ctx;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]2439
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2440 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]2441 now_ms, __FUNCTION__,
2442 s,
2443 req,
2444 req->rex, req->wex,
2445 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2446 req->buf->i,
Willy Tarreau6bf17362009-02-24 10:48:35 +0100[diff] [blame]2447 req->analysers);
2448
Willy Tarreau52a0c602009-08-16 22:45:38 +0200[diff] [blame]2449 /* we're speaking HTTP here, so let's speak HTTP to the client */
2450 s->srv_error = http_return_srv_error;
2451
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]2452 /* There's a protected area at the end of the buffer for rewriting
2453 * purposes. We don't want to start to parse the request if the
2454 * protected area is affected, because we may have to move processed
2455 * data later, which is much more complicated.
2456 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2457 if (buffer_not_empty(req->buf) && msg->msg_state < HTTP_MSG_ERROR) {
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]2458 if (txn->flags & TX_NOT_FIRST) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]2459 if (unlikely(!channel_is_rewritable(req))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]2460 if (req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]2461 goto failed_keep_alive;
Willy Tarreau2ab6eb12010-01-02 22:04:45 +0100[diff] [blame]2462 /* some data has still not left the buffer, wake us once that's done */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]2463 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]2464 req->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]2465 req->flags |= CF_WAKE_WRITE;
Willy Tarreau2ab6eb12010-01-02 22:04:45 +0100[diff] [blame]2466 return 0;
2467 }
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]2468 if (unlikely(bi_end(req->buf) < b_ptr(req->buf, msg->next) ||
2469 bi_end(req->buf) > req->buf->data + req->buf->size - global.tune.maxrewrite))
2470 buffer_slow_realign(req->buf);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]2471 }
2472
Willy Tarreau065e8332010-01-08 00:30:20 +0100[diff] [blame]2473 /* Note that we have the same problem with the response ; we
2474 * may want to send a redirect, error or anything which requires
2475 * some spare space. So we'll ensure that we have at least
2476 * maxrewrite bytes available in the response buffer before
2477 * processing that one. This will only affect pipelined
2478 * keep-alive requests.
2479 */
2480 if ((txn->flags & TX_NOT_FIRST) &&
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]2481 unlikely(!channel_is_rewritable(&s->res) ||
2482 bi_end(s->res.buf) < b_ptr(s->res.buf, txn->rsp.next) ||
2483 bi_end(s->res.buf) > s->res.buf->data + s->res.buf->size - global.tune.maxrewrite)) {
2484 if (s->res.buf->o) {
2485 if (s->res.flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]2486 goto failed_keep_alive;
Willy Tarreau065e8332010-01-08 00:30:20 +0100[diff] [blame]2487 /* don't let a connection request be initiated */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]2488 channel_dont_connect(req);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]2489 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
2490 s->res.flags |= CF_WAKE_WRITE;
2491 s->res.analysers |= an_bit; /* wake us up once it changes */
Willy Tarreau065e8332010-01-08 00:30:20 +0100[diff] [blame]2492 return 0;
2493 }
2494 }
2495
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2496 if (likely(msg->next < req->buf->i)) /* some unparsed data are available */
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]2497 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]2498 }
2499
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2500 /* 1: we might have to print this header in debug mode */
2501 if (unlikely((global.mode & MODE_DEBUG) &&
2502 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]2503 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2504 char *eol, *sol;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2505
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2506 sol = req->buf->p;
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]2507 /* this is a bit complex : in case of error on the request line,
2508 * we know that rq.l is still zero, so we display only the part
2509 * up to the end of the line (truncated by debug_hdr).
2510 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2511 eol = sol + (msg->sl.rq.l ? msg->sl.rq.l : req->buf->i);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2512 debug_hdr("clireq", s, sol, eol);
Willy Tarreau45e73e32006-12-17 00:05:15 +0100[diff] [blame]2513
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2514 sol += hdr_idx_first_pos(&txn->hdr_idx);
2515 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2516
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2517 while (cur_idx) {
2518 eol = sol + txn->hdr_idx.v[cur_idx].len;
2519 debug_hdr("clihdr", s, sol, eol);
2520 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
2521 cur_idx = txn->hdr_idx.v[cur_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2522 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2523 }
2524
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2525
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2526 /*
2527 * Now we quickly check if we have found a full valid request.
2528 * If not so, we check the FD and buffer states before leaving.
2529 * A full request is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]2530 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]2531 * requests are checked first. When waiting for a second request
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2532 * on a keep-alive stream, if we encounter and error, close, t/o,
2533 * we note the error in the stream flags but don't set any state.
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]2534 * Since the error will be noted there, it will not be counted by
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2535 * process_stream() as a frontend error.
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]2536 * Last, we may increase some tracked counters' http request errors on
2537 * the cases that are deliberately the client's fault. For instance,
2538 * a timeout or connection reset is not counted as an error. However
2539 * a bad request is.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2540 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2541
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]2542 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2543 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2544 * First, let's catch bad requests.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2545 */
Willy Tarreau3e1b6d12010-03-04 23:02:38 +0100[diff] [blame]2546 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2547 stream_inc_http_req_ctr(s);
2548 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2549 proxy_inc_fe_req_ctr(sess->fe);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2550 goto return_bad_req;
Willy Tarreau3e1b6d12010-03-04 23:02:38 +0100[diff] [blame]2551 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2552
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2553 /* 1: Since we are in header mode, if there's no space
2554 * left for headers, we won't be able to free more
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2555 * later, so the stream will never terminate. We
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2556 * must terminate it now.
2557 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2558 if (unlikely(buffer_full(req->buf, global.tune.maxrewrite))) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2559 /* FIXME: check if URI is set and return Status
2560 * 414 Request URI too long instead.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2561 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2562 stream_inc_http_req_ctr(s);
2563 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2564 proxy_inc_fe_req_ctr(sess->fe);
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]2565 if (msg->err_pos < 0)
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2566 msg->err_pos = req->buf->i;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2567 goto return_bad_req;
2568 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2569
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2570 /* 2: have we encountered a read error ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]2571 else if (req->flags & CF_READ_ERROR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2572 if (!(s->flags & SF_ERR_MASK))
2573 s->flags |= SF_ERR_CLICL;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]2574
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]2575 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]2576 goto failed_keep_alive;
2577
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]2578 if (sess->fe->options & PR_O_IGNORE_PRB)
2579 goto failed_keep_alive;
2580
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2581 /* we cannot return any message on error */
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]2582 if (msg->err_pos >= 0) {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2583 http_capture_bad_message(&sess->fe->invalid_req, s, msg, msg->msg_state, sess->fe);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2584 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]2585 }
2586
Willy Tarreaudc979f22012-12-04 10:39:01 +0100[diff] [blame]2587 txn->status = 400;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2588 msg->msg_state = HTTP_MSG_ERROR;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2589 http_reply_and_close(s, txn->status, NULL);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]2590 req->analysers &= AN_FLT_END;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2591 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2592 proxy_inc_fe_req_ctr(sess->fe);
2593 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]2594 if (sess->listener->counters)
2595 sess->listener->counters->failed_req++;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]2596
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2597 if (!(s->flags & SF_FINST_MASK))
2598 s->flags |= SF_FINST_R;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2599 return 0;
2600 }
Willy Tarreauf9839bd2008-08-27 23:57:16 +0200[diff] [blame]2601
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2602 /* 3: has the read timeout expired ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]2603 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]2604 if (!(s->flags & SF_ERR_MASK))
2605 s->flags |= SF_ERR_CLITO;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]2606
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]2607 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]2608 goto failed_keep_alive;
2609
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]2610 if (sess->fe->options & PR_O_IGNORE_PRB)
2611 goto failed_keep_alive;
2612
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2613 /* read timeout : give up with an error message. */
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]2614 if (msg->err_pos >= 0) {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2615 http_capture_bad_message(&sess->fe->invalid_req, s, msg, msg->msg_state, sess->fe);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2616 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]2617 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2618 txn->status = 408;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2619 msg->msg_state = HTTP_MSG_ERROR;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2620 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_408));
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]2621 req->analysers &= AN_FLT_END;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]2622
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2623 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2624 proxy_inc_fe_req_ctr(sess->fe);
2625 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]2626 if (sess->listener->counters)
2627 sess->listener->counters->failed_req++;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]2628
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2629 if (!(s->flags & SF_FINST_MASK))
2630 s->flags |= SF_FINST_R;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2631 return 0;
2632 }
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]2633
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2634 /* 4: have we encountered a close ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]2635 else if (req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2636 if (!(s->flags & SF_ERR_MASK))
2637 s->flags |= SF_ERR_CLICL;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]2638
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]2639 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]2640 goto failed_keep_alive;
2641
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]2642 if (sess->fe->options & PR_O_IGNORE_PRB)
2643 goto failed_keep_alive;
2644
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]2645 if (msg->err_pos >= 0)
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2646 http_capture_bad_message(&sess->fe->invalid_req, s, msg, msg->msg_state, sess->fe);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2647 txn->status = 400;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2648 msg->msg_state = HTTP_MSG_ERROR;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2649 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_400));
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]2650 req->analysers &= AN_FLT_END;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2651 stream_inc_http_err_ctr(s);
2652 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2653 proxy_inc_fe_req_ctr(sess->fe);
2654 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]2655 if (sess->listener->counters)
2656 sess->listener->counters->failed_req++;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]2657
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2658 if (!(s->flags & SF_FINST_MASK))
2659 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]2660 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2661 }
2662
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]2663 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]2664 req->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]2665 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]2666#ifdef TCP_QUICKACK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2667 if (sess->listener->options & LI_O_NOQUICKACK && req->buf->i &&
2668 objt_conn(sess->origin) && conn_ctrl_ready(__objt_conn(sess->origin))) {
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]2669 /* We need more data, we have to re-enable quick-ack in case we
2670 * previously disabled it, otherwise we might cause the client
2671 * to delay next data.
2672 */
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2673 setsockopt(__objt_conn(sess->origin)->t.sock.fd, IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one));
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]2674 }
2675#endif
Willy Tarreau1b194fe2009-03-21 21:10:04 +0100[diff] [blame]2676
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]2677 if ((msg->msg_state != HTTP_MSG_RQBEFORE) && (txn->flags & TX_WAIT_NEXT_RQ)) {
2678 /* If the client starts to talk, let's fall back to
2679 * request timeout processing.
2680 */
2681 txn->flags &= ~TX_WAIT_NEXT_RQ;
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]2682 req->analyse_exp = TICK_ETERNITY;
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]2683 }
2684
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2685 /* just set the request timeout once at the beginning of the request */
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]2686 if (!tick_isset(req->analyse_exp)) {
2687 if ((msg->msg_state == HTTP_MSG_RQBEFORE) &&
2688 (txn->flags & TX_WAIT_NEXT_RQ) &&
2689 tick_isset(s->be->timeout.httpka))
2690 req->analyse_exp = tick_add(now_ms, s->be->timeout.httpka);
2691 else
2692 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
2693 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2694
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2695 /* we're not ready yet */
2696 return 0;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]2697
2698 failed_keep_alive:
2699 /* Here we process low-level errors for keep-alive requests. In
2700 * short, if the request is not the first one and it experiences
2701 * a timeout, read error or shutdown, we just silently close so
2702 * that the client can try again.
2703 */
2704 txn->status = 0;
2705 msg->msg_state = HTTP_MSG_RQBEFORE;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]2706 req->analysers &= AN_FLT_END;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]2707 s->logs.logwait = 0;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]2708 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]2709 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2710 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]2711 return 0;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2712 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2713
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2714 /* OK now we have a complete HTTP request with indexed headers. Let's
2715 * complete the request parsing by setting a few fields we will need
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2716 * 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]2717 * 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]2718 * points to the CRLF of the request line. msg->next points to the first
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]2719 * byte after the last LF. msg->sov points to the first byte of data.
2720 * msg->eol cannot be trusted because it may have been left uninitialized
2721 * (for instance in the absence of headers).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2722 */
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]2723
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2724 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2725 proxy_inc_fe_req_ctr(sess->fe); /* one more valid request for this FE */
Willy Tarreaud9b587f2010-02-26 10:05:55 +0100[diff] [blame]2726
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]2727 if (txn->flags & TX_WAIT_NEXT_RQ) {
2728 /* kill the pending keep-alive timeout */
2729 txn->flags &= ~TX_WAIT_NEXT_RQ;
2730 req->analyse_exp = TICK_ETERNITY;
2731 }
2732
2733
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2734 /* Maybe we found in invalid header name while we were configured not
2735 * to block on that, so we have to capture it now.
2736 */
2737 if (unlikely(msg->err_pos >= 0))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2738 http_capture_bad_message(&sess->fe->invalid_req, s, msg, msg->msg_state, sess->fe);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]2739
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2740 /*
2741 * 1: identify the method
2742 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2743 txn->meth = find_http_meth(req->buf->p, msg->sl.rq.m_l);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2744
2745 /* we can make use of server redirect on GET and HEAD */
2746 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2747 s->flags |= SF_REDIRECTABLE;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200[diff] [blame]2748
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2749 /*
2750 * 2: check if the URI matches the monitor_uri.
2751 * We have to do this for every request which gets in, because
2752 * the monitor-uri is defined by the frontend.
2753 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2754 if (unlikely((sess->fe->monitor_uri_len != 0) &&
2755 (sess->fe->monitor_uri_len == msg->sl.rq.u_l) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2756 !memcmp(req->buf->p + msg->sl.rq.u,
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2757 sess->fe->monitor_uri,
2758 sess->fe->monitor_uri_len))) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2759 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2760 * We have found the monitor URI
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2761 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2762 struct acl_cond *cond;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]2763
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2764 s->flags |= SF_MONITOR;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2765 sess->fe->fe_counters.intercepted_req++;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]2766
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2767 /* Check if we want to fail this monitor request or not */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2768 list_for_each_entry(cond, &sess->fe->mon_fail_cond, list) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2769 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]2770
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2771 ret = acl_pass(ret);
2772 if (cond->pol == ACL_COND_UNLESS)
2773 ret = !ret;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]2774
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2775 if (ret) {
2776 /* we fail this request, let's return 503 service unavail */
2777 txn->status = 503;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2778 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_503));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2779 if (!(s->flags & SF_ERR_MASK))
2780 s->flags |= SF_ERR_LOCAL; /* we don't want a real error here */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2781 goto return_prx_cond;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]2782 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2783 }
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100[diff] [blame]2784
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2785 /* nothing to fail, let's reply normaly */
2786 txn->status = 200;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2787 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_200));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2788 if (!(s->flags & SF_ERR_MASK))
2789 s->flags |= SF_ERR_LOCAL; /* we don't want a real error here */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2790 goto return_prx_cond;
2791 }
2792
2793 /*
2794 * 3: Maybe we have to copy the original REQURI for the logs ?
2795 * Note: we cannot log anymore if the request has been
2796 * classified as invalid.
2797 */
2798 if (unlikely(s->logs.logwait & LW_REQ)) {
2799 /* we have a complete HTTP request that we must log */
2800 if ((txn->uri = pool_alloc2(pool2_requri)) != NULL) {
2801 int urilen = msg->sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2802
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2803 if (urilen >= REQURI_LEN)
2804 urilen = REQURI_LEN - 1;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2805 memcpy(txn->uri, req->buf->p, urilen);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2806 txn->uri[urilen] = 0;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2807
Willy Tarreaud79a3b22012-12-28 09:40:16 +0100[diff] [blame]2808 if (!(s->logs.logwait &= ~(LW_REQ|LW_INIT)))
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2809 s->do_log(s);
2810 } else {
2811 Alert("HTTP logging : out of memory.\n");
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2812 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2813 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]2814
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]2815 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
2816 * exactly one digit "." one digit. This check may be disabled using
2817 * option accept-invalid-http-request.
2818 */
2819 if (!(sess->fe->options2 & PR_O2_REQBUG_OK)) {
2820 if (msg->sl.rq.v_l != 8) {
2821 msg->err_pos = msg->sl.rq.v;
2822 goto return_bad_req;
2823 }
2824
2825 if (req->buf->p[msg->sl.rq.v + 4] != '/' ||
2826 !isdigit((unsigned char)req->buf->p[msg->sl.rq.v + 5]) ||
2827 req->buf->p[msg->sl.rq.v + 6] != '.' ||
2828 !isdigit((unsigned char)req->buf->p[msg->sl.rq.v + 7])) {
2829 msg->err_pos = msg->sl.rq.v + 4;
2830 goto return_bad_req;
2831 }
2832 }
Willy Tarreau13317662015-05-01 13:47:08 +0200[diff] [blame]2833 else {
2834 /* 4. We may have to convert HTTP/0.9 requests to HTTP/1.0 */
2835 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
2836 goto return_bad_req;
2837 }
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]2838
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2839 /* ... and check if the request is HTTP/1.1 or above */
2840 if ((msg->sl.rq.v_l == 8) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2841 ((req->buf->p[msg->sl.rq.v + 5] > '1') ||
2842 ((req->buf->p[msg->sl.rq.v + 5] == '1') &&
2843 (req->buf->p[msg->sl.rq.v + 7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2844 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2845
2846 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]2847 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]2848
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2849 /* if the frontend has "option http-use-proxy-header", we'll check if
2850 * we have what looks like a proxied connection instead of a connection,
2851 * and in this case set the TX_USE_PX_CONN flag to use Proxy-connection.
2852 * Note that this is *not* RFC-compliant, however browsers and proxies
2853 * happen to do that despite being non-standard :-(
2854 * We consider that a request not beginning with either '/' or '*' is
2855 * a proxied connection, which covers both "scheme://location" and
2856 * CONNECT ip:port.
2857 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2858 if ((sess->fe->options2 & PR_O2_USE_PXHDR) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2859 req->buf->p[msg->sl.rq.u] != '/' && req->buf->p[msg->sl.rq.u] != '*')
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2860 txn->flags |= TX_USE_PX_CONN;
2861
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2862 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2863 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2864
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2865 /* 5: we may need to capture headers */
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]2866 if (unlikely((s->logs.logwait & LW_REQHDR) && s->req_cap))
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2867 capture_headers(req->buf->p, &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]2868 s->req_cap, sess->fe->req_cap);
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]2869
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2870 /* 6: determine the transfer-length according to RFC2616 #4.4, updated
2871 * by RFC7230#3.3.3 :
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2872 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2873 * The length of a message body is determined by one of the following
2874 * (in order of precedence):
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2875 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2876 * 1. Any response to a HEAD request and any response with a 1xx
2877 * (Informational), 204 (No Content), or 304 (Not Modified) status
2878 * code is always terminated by the first empty line after the
2879 * header fields, regardless of the header fields present in the
2880 * message, and thus cannot contain a message body.
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2881 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2882 * 2. Any 2xx (Successful) response to a CONNECT request implies that
2883 * the connection will become a tunnel immediately after the empty
2884 * line that concludes the header fields. A client MUST ignore any
2885 * Content-Length or Transfer-Encoding header fields received in
2886 * such a message.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2887 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2888 * 3. If a Transfer-Encoding header field is present and the chunked
2889 * transfer coding (Section 4.1) is the final encoding, the message
2890 * body length is determined by reading and decoding the chunked
2891 * data until the transfer coding indicates the data is complete.
2892 *
2893 * If a Transfer-Encoding header field is present in a response and
2894 * the chunked transfer coding is not the final encoding, the
2895 * message body length is determined by reading the connection until
2896 * it is closed by the server. If a Transfer-Encoding header field
2897 * is present in a request and the chunked transfer coding is not
2898 * the final encoding, the message body length cannot be determined
2899 * reliably; the server MUST respond with the 400 (Bad Request)
2900 * status code and then close the connection.
2901 *
2902 * If a message is received with both a Transfer-Encoding and a
2903 * Content-Length header field, the Transfer-Encoding overrides the
2904 * Content-Length. Such a message might indicate an attempt to
2905 * perform request smuggling (Section 9.5) or response splitting
2906 * (Section 9.4) and ought to be handled as an error. A sender MUST
2907 * remove the received Content-Length field prior to forwarding such
2908 * a message downstream.
2909 *
2910 * 4. If a message is received without Transfer-Encoding and with
2911 * either multiple Content-Length header fields having differing
2912 * field-values or a single Content-Length header field having an
2913 * invalid value, then the message framing is invalid and the
2914 * recipient MUST treat it as an unrecoverable error. If this is a
2915 * request message, the server MUST respond with a 400 (Bad Request)
2916 * status code and then close the connection. If this is a response
2917 * message received by a proxy, the proxy MUST close the connection
2918 * to the server, discard the received response, and send a 502 (Bad
2919 * Gateway) response to the client. If this is a response message
2920 * received by a user agent, the user agent MUST close the
2921 * connection to the server and discard the received response.
2922 *
2923 * 5. If a valid Content-Length header field is present without
2924 * Transfer-Encoding, its decimal value defines the expected message
2925 * body length in octets. If the sender closes the connection or
2926 * the recipient times out before the indicated number of octets are
2927 * received, the recipient MUST consider the message to be
2928 * incomplete and close the connection.
2929 *
2930 * 6. If this is a request message and none of the above are true, then
2931 * the message body length is zero (no message body is present).
2932 *
2933 * 7. Otherwise, this is a response message without a declared message
2934 * body length, so the message body length is determined by the
2935 * number of octets received prior to the server closing the
2936 * connection.
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2937 */
2938
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2939 ctx.idx = 0;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2940 /* set TE_CHNK and XFER_LEN only if "chunked" is seen last */
Willy Tarreau4979d5c2015-05-01 10:06:30 +0200[diff] [blame]2941 while (http_find_header2("Transfer-Encoding", 17, req->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2942 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2943 msg->flags |= (HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
2944 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2945 /* chunked not last, return badreq */
2946 goto return_bad_req;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2947 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2948 }
2949
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]2950 /* Chunked requests must have their content-length removed */
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2951 ctx.idx = 0;
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]2952 if (msg->flags & HTTP_MSGF_TE_CHNK) {
2953 while (http_find_header2("Content-Length", 14, req->buf->p, &txn->hdr_idx, &ctx))
2954 http_remove_header2(msg, &txn->hdr_idx, &ctx);
2955 }
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2956 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]2957 signed long long cl;
2958
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2959 if (!ctx.vlen) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2960 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2961 goto return_bad_req;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2962 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2963
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2964 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2965 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2966 goto return_bad_req; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2967 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2968
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2969 if (cl < 0) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2970 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2971 goto return_bad_req;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2972 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2973
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2974 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2975 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2976 goto return_bad_req; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2977 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2978
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2979 msg->flags |= HTTP_MSGF_CNT_LEN | HTTP_MSGF_XFER_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]2980 msg->body_len = msg->chunk_len = cl;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2981 }
2982
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2983 /* even bodyless requests have a known length */
2984 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2985
Willy Tarreau179085c2014-04-28 16:48:56 +0200[diff] [blame]2986 /* Until set to anything else, the connection mode is set as Keep-Alive. It will
2987 * only change if both the request and the config reference something else.
2988 * Option httpclose by itself sets tunnel mode where headers are mangled.
2989 * However, if another mode is set, it will affect it (eg: server-close/
2990 * keep-alive + httpclose = close). Note that we avoid to redo the same work
2991 * if FE and BE have the same settings (common). The method consists in
2992 * checking if options changed between the two calls (implying that either
2993 * one is non-null, or one of them is non-null and we are there for the first
2994 * time.
2995 */
2996 if (!(txn->flags & TX_HDR_CONN_PRS) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2997 ((sess->fe->options & PR_O_HTTP_MODE) != (s->be->options & PR_O_HTTP_MODE)))
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2998 http_adjust_conn_mode(s, txn, msg);
Willy Tarreau179085c2014-04-28 16:48:56 +0200[diff] [blame]2999
Willy Tarreau9fbe18e2015-05-01 22:42:08 +0200[diff] [blame]3000 /* we may have to wait for the request's body */
3001 if ((s->be->options & PR_O_WREQ_BODY) &&
3002 (msg->body_len || (msg->flags & HTTP_MSGF_TE_CHNK)))
3003 req->analysers |= AN_REQ_HTTP_BODY;
3004
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3005 /* end of job, return OK */
Willy Tarreau3a816292009-07-07 10:55:49 +0200[diff] [blame]3006 req->analysers &= ~an_bit;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3007 req->analyse_exp = TICK_ETERNITY;
3008 return 1;
3009
3010 return_bad_req:
3011 /* We centralize bad requests processing here */
3012 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
3013 /* we detected a parsing error. We want to archive this request
3014 * in the dedicated proxy area for later troubleshooting.
3015 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3016 http_capture_bad_message(&sess->fe->invalid_req, s, msg, msg->msg_state, sess->fe);
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3017 }
3018
3019 txn->req.msg_state = HTTP_MSG_ERROR;
3020 txn->status = 400;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]3021 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_400));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]3022
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3023 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3024 if (sess->listener->counters)
3025 sess->listener->counters->failed_req++;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3026
3027 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3028 if (!(s->flags & SF_ERR_MASK))
3029 s->flags |= SF_ERR_PRXCOND;
3030 if (!(s->flags & SF_FINST_MASK))
3031 s->flags |= SF_FINST_R;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3032
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]3033 req->analysers &= AN_FLT_END;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3034 req->analyse_exp = TICK_ETERNITY;
3035 return 0;
3036}
3037
Willy Tarreau4f8a83c2012-06-04 00:26:23 +0200[diff] [blame]3038
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3039/* This function prepares an applet to handle the stats. It can deal with the
3040 * "100-continue" expectation, check that admin rules are met for POST requests,
3041 * and program a response message if something was unexpected. It cannot fail
3042 * 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]3043 * analysers nor counters, which are left to the caller. It does not touch
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3044 * s->target which is supposed to already point to the stats applet. The caller
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3045 * is expected to have already assigned an appctx to the stream.
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3046 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3047int http_handle_stats(struct stream *s, struct channel *req)
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3048{
3049 struct stats_admin_rule *stats_admin_rule;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]3050 struct stream_interface *si = &s->si[1];
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3051 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3052 struct http_txn *txn = s->txn;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3053 struct http_msg *msg = &txn->req;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3054 struct uri_auth *uri_auth = s->be->uri_auth;
3055 const char *uri, *h, *lookup;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3056 struct appctx *appctx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3057
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3058 appctx = si_appctx(si);
3059 memset(&appctx->ctx.stats, 0, sizeof(appctx->ctx.stats));
3060 appctx->st1 = appctx->st2 = 0;
3061 appctx->ctx.stats.st_code = STAT_STATUS_INIT;
3062 appctx->ctx.stats.flags |= STAT_FMT_HTML; /* assume HTML mode by default */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3063 if ((msg->flags & HTTP_MSGF_VER_11) && (s->txn->meth != HTTP_METH_HEAD))
Willy Tarreauaf3cf702014-04-22 22:19:53 +0200[diff] [blame]3064 appctx->ctx.stats.flags |= STAT_CHUNKED;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3065
3066 uri = msg->chn->buf->p + msg->sl.rq.u;
3067 lookup = uri + uri_auth->uri_len;
3068
3069 for (h = lookup; h <= uri + msg->sl.rq.u_l - 3; h++) {
3070 if (memcmp(h, ";up", 3) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3071 appctx->ctx.stats.flags |= STAT_HIDE_DOWN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3072 break;
3073 }
3074 }
3075
3076 if (uri_auth->refresh) {
3077 for (h = lookup; h <= uri + msg->sl.rq.u_l - 10; h++) {
3078 if (memcmp(h, ";norefresh", 10) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3079 appctx->ctx.stats.flags |= STAT_NO_REFRESH;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3080 break;
3081 }
3082 }
3083 }
3084
3085 for (h = lookup; h <= uri + msg->sl.rq.u_l - 4; h++) {
3086 if (memcmp(h, ";csv", 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3087 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3088 break;
3089 }
3090 }
3091
Willy Tarreau1e62df92016-01-11 18:57:53 +0100[diff] [blame]3092 for (h = lookup; h <= uri + msg->sl.rq.u_l - 6; h++) {
3093 if (memcmp(h, ";typed", 6) == 0) {
3094 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
3095 appctx->ctx.stats.flags |= STAT_FMT_TYPED;
3096 break;
3097 }
3098 }
3099
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3100 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
3101 if (memcmp(h, ";st=", 4) == 0) {
3102 int i;
3103 h += 4;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3104 appctx->ctx.stats.st_code = STAT_STATUS_UNKN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3105 for (i = STAT_STATUS_INIT + 1; i < STAT_STATUS_SIZE; i++) {
3106 if (strncmp(stat_status_codes[i], h, 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3107 appctx->ctx.stats.st_code = i;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3108 break;
3109 }
3110 }
3111 break;
3112 }
3113 }
3114
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3115 appctx->ctx.stats.scope_str = 0;
3116 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3117 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
3118 if (memcmp(h, STAT_SCOPE_INPUT_NAME "=", strlen(STAT_SCOPE_INPUT_NAME) + 1) == 0) {
3119 int itx = 0;
3120 const char *h2;
3121 char scope_txt[STAT_SCOPE_TXT_MAXLEN + 1];
3122 const char *err;
3123
3124 h += strlen(STAT_SCOPE_INPUT_NAME) + 1;
3125 h2 = h;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3126 appctx->ctx.stats.scope_str = h2 - msg->chn->buf->p;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3127 while (*h != ';' && *h != '\0' && *h != '&' && *h != ' ' && *h != '\n') {
3128 itx++;
3129 h++;
3130 }
3131
3132 if (itx > STAT_SCOPE_TXT_MAXLEN)
3133 itx = STAT_SCOPE_TXT_MAXLEN;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3134 appctx->ctx.stats.scope_len = itx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3135
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3136 /* 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]3137 memcpy(scope_txt, h2, itx);
3138 scope_txt[itx] = '\0';
3139 err = invalid_char(scope_txt);
3140 if (err) {
3141 /* bad char in search text => clear scope */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3142 appctx->ctx.stats.scope_str = 0;
3143 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3144 }
3145 break;
3146 }
3147 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3148
3149 /* now check whether we have some admin rules for this request */
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3150 list_for_each_entry(stats_admin_rule, &uri_auth->admin_rules, list) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3151 int ret = 1;
3152
3153 if (stats_admin_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3154 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]3155 ret = acl_pass(ret);
3156 if (stats_admin_rule->cond->pol == ACL_COND_UNLESS)
3157 ret = !ret;
3158 }
3159
3160 if (ret) {
3161 /* no rule, or the rule matches */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3162 appctx->ctx.stats.flags |= STAT_ADMIN;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3163 break;
3164 }
3165 }
3166
3167 /* Was the status page requested with a POST ? */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]3168 if (unlikely(txn->meth == HTTP_METH_POST && txn->req.body_len > 0)) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3169 if (appctx->ctx.stats.flags & STAT_ADMIN) {
Willy Tarreaucfe7fdd2014-04-26 22:08:32 +0200[diff] [blame]3170 /* we'll need the request body, possibly after sending 100-continue */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]3171 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE)
3172 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3173 appctx->st0 = STAT_HTTP_POST;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3174 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3175 else {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3176 appctx->ctx.stats.st_code = STAT_STATUS_DENY;
3177 appctx->st0 = STAT_HTTP_LAST;
de Lafond Guillaume88c278f2013-04-15 19:27:10 +0200[diff] [blame]3178 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3179 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3180 else {
3181 /* So it was another method (GET/HEAD) */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3182 appctx->st0 = STAT_HTTP_HEAD;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3183 }
3184
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3185 s->task->nice = -32; /* small boost for HTTP statistics */
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3186 return 1;
3187}
3188
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]3189/* Sets the TOS header in IPv4 and the traffic class header in IPv6 packets
3190 * (as per RFC3260 #4 and BCP37 #4.2 and #5.2).
3191 */
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]3192void inet_set_tos(int fd, const struct sockaddr_storage *from, int tos)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]3193{
3194#ifdef IP_TOS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]3195 if (from->ss_family == AF_INET)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]3196 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
3197#endif
3198#ifdef IPV6_TCLASS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]3199 if (from->ss_family == AF_INET6) {
3200 if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)from)->sin6_addr))
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]3201 /* v4-mapped addresses need IP_TOS */
3202 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
3203 else
3204 setsockopt(fd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof(tos));
3205 }
3206#endif
3207}
3208
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3209int http_transform_header_str(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]3210 const char* name, unsigned int name_len,
3211 const char *str, struct my_regex *re,
3212 int action)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3213{
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3214 struct hdr_ctx ctx;
3215 char *buf = msg->chn->buf->p;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3216 struct hdr_idx *idx = &s->txn->hdr_idx;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]3217 int (*http_find_hdr_func)(const char *name, int len, char *sol,
3218 struct hdr_idx *idx, struct hdr_ctx *ctx);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3219 struct chunk *output = get_trash_chunk();
3220
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3221 ctx.idx = 0;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3222
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3223 /* Choose the header browsing function. */
3224 switch (action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3225 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3226 http_find_hdr_func = http_find_header2;
3227 break;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3228 case ACT_HTTP_REPLACE_HDR:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3229 http_find_hdr_func = http_find_full_header2;
3230 break;
3231 default: /* impossible */
3232 return -1;
3233 }
3234
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3235 while (http_find_hdr_func(name, name_len, buf, idx, &ctx)) {
3236 struct hdr_idx_elem *hdr = idx->v + ctx.idx;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3237 int delta;
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3238 char *val = ctx.line + ctx.val;
3239 char* val_end = val + ctx.vlen;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3240
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3241 if (!regex_exec_match2(re, val, val_end-val, MAX_MATCH, pmatch, 0))
3242 continue;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3243
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]3244 output->len = exp_replace(output->str, output->size, val, str, pmatch);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3245 if (output->len == -1)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3246 return -1;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3247
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3248 delta = buffer_replace2(msg->chn->buf, val, val_end, output->str, output->len);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3249
3250 hdr->len += delta;
3251 http_msg_move_end(msg, delta);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3252
3253 /* Adjust the length of the current value of the index. */
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3254 ctx.vlen += delta;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3255 }
3256
3257 return 0;
3258}
3259
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3260static int http_transform_header(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]3261 const char* name, unsigned int name_len,
3262 struct list *fmt, struct my_regex *re,
3263 int action)
3264{
3265 struct chunk *replace = get_trash_chunk();
3266
3267 replace->len = build_logline(s, replace->str, replace->size, fmt);
3268 if (replace->len >= replace->size - 1)
3269 return -1;
3270
3271 return http_transform_header_str(s, msg, name, name_len, replace->str, re, action);
3272}
3273
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3274/* Executes the http-request rules <rules> for stream <s>, proxy <px> and
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3275 * transaction <txn>. Returns the verdict of the first rule that prevents
3276 * further processing of the request (auth, deny, ...), and defaults to
3277 * HTTP_RULE_RES_STOP if it executed all rules or stopped on an allow, or
3278 * 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]3279 * on txn->flags if it encounters a tarpit rule. If <deny_status> is not NULL
3280 * and a deny/tarpit rule is matched, it will be filled with this rule's deny
3281 * status.
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3282 */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3283enum rule_result
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3284http_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]3285{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3286 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]3287 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3288 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]3289 struct act_rule *rule;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]3290 struct hdr_ctx ctx;
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]3291 const char *auth_realm;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3292 int act_flags = 0;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3293
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3294 /* If "the current_rule_list" match the executed rule list, we are in
3295 * resume condition. If a resume is needed it is always in the action
3296 * and never in the ACL or converters. In this case, we initialise the
3297 * current rule, and go to the action execution point.
3298 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3299 if (s->current_rule) {
3300 rule = s->current_rule;
3301 s->current_rule = NULL;
3302 if (s->current_rule_list == rules)
3303 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3304 }
3305 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3306
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]3307 list_for_each_entry(rule, rules, list) {
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3308
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3309 /* check optional condition */
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]3310 if (rule->cond) {
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3311 int ret;
3312
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3313 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]3314 ret = acl_pass(ret);
3315
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]3316 if (rule->cond->pol == ACL_COND_UNLESS)
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3317 ret = !ret;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3318
3319 if (!ret) /* condition not matched */
3320 continue;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3321 }
3322
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3323 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3324resume_execution:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3325 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3326 case ACT_ACTION_ALLOW:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3327 return HTTP_RULE_RES_STOP;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3328
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3329 case ACT_ACTION_DENY:
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3330 if (deny_status)
3331 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3332 return HTTP_RULE_RES_DENY;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3333
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3334 case ACT_HTTP_REQ_TARPIT:
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]3335 txn->flags |= TX_CLTARPIT;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3336 if (deny_status)
3337 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3338 return HTTP_RULE_RES_DENY;
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]3339
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3340 case ACT_HTTP_REQ_AUTH:
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]3341 /* Auth might be performed on regular http-req rules as well as on stats */
3342 auth_realm = rule->arg.auth.realm;
3343 if (!auth_realm) {
3344 if (px->uri_auth && rules == &px->uri_auth->http_req_rules)
3345 auth_realm = STATS_DEFAULT_REALM;
3346 else
3347 auth_realm = px->id;
3348 }
3349 /* send 401/407 depending on whether we use a proxy or not. We still
3350 * count one error, because normal browsing won't significantly
3351 * increase the counter but brute force attempts will.
3352 */
3353 chunk_printf(&trash, (txn->flags & TX_USE_PX_CONN) ? HTTP_407_fmt : HTTP_401_fmt, auth_realm);
3354 txn->status = (txn->flags & TX_USE_PX_CONN) ? 407 : 401;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]3355 http_reply_and_close(s, txn->status, &trash);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3356 stream_inc_http_err_ctr(s);
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3357 return HTTP_RULE_RES_ABRT;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3358
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3359 case ACT_HTTP_REDIR:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3360 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
3361 return HTTP_RULE_RES_BADREQ;
3362 return HTTP_RULE_RES_DONE;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]3363
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3364 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]3365 s->task->nice = rule->arg.nice;
3366 break;
3367
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3368 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3369 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]3370 inet_set_tos(cli_conn->t.sock.fd, &cli_conn->addr.from, rule->arg.tos);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]3371 break;
3372
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3373 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]3374#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3375 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3376 setsockopt(cli_conn->t.sock.fd, SOL_SOCKET, SO_MARK, &rule->arg.mark, sizeof(rule->arg.mark));
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]3377#endif
3378 break;
3379
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3380 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]3381 s->logs.level = rule->arg.loglevel;
3382 break;
3383
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3384 case ACT_HTTP_REPLACE_HDR:
3385 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3386 if (http_transform_header(s, &txn->req, rule->arg.hdr_add.name,
3387 rule->arg.hdr_add.name_len,
3388 &rule->arg.hdr_add.fmt,
3389 &rule->arg.hdr_add.re, rule->action))
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3390 return HTTP_RULE_RES_BADREQ;
3391 break;
3392
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3393 case ACT_HTTP_DEL_HDR:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3394 ctx.idx = 0;
3395 /* remove all occurrences of the header */
3396 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
3397 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
3398 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]3399 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]3400 break;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3401
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3402 case ACT_HTTP_SET_HDR:
3403 case ACT_HTTP_ADD_HDR:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3404 chunk_printf(&trash, "%s: ", rule->arg.hdr_add.name);
3405 memcpy(trash.str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
3406 trash.len = rule->arg.hdr_add.name_len;
3407 trash.str[trash.len++] = ':';
3408 trash.str[trash.len++] = ' ';
3409 trash.len += build_logline(s, trash.str + trash.len, trash.size - trash.len, &rule->arg.hdr_add.fmt);
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]3410
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3411 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]3412 /* remove all occurrences of the header */
3413 ctx.idx = 0;
3414 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
3415 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
3416 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
3417 }
3418 }
3419
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3420 http_header_add_tail2(&txn->req, &txn->hdr_idx, trash.str, trash.len);
3421 break;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3422
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3423 case ACT_HTTP_DEL_ACL:
3424 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3425 struct pat_ref *ref;
3426 char *key;
3427 int len;
3428
3429 /* collect reference */
3430 ref = pat_ref_lookup(rule->arg.map.ref);
3431 if (!ref)
3432 continue;
3433
3434 /* collect key */
3435 len = build_logline(s, trash.str, trash.size, &rule->arg.map.key);
3436 key = trash.str;
3437 key[len] = '\0';
3438
3439 /* perform update */
3440 /* returned code: 1=ok, 0=ko */
3441 pat_ref_delete(ref, key);
3442
3443 break;
3444 }
3445
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3446 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3447 struct pat_ref *ref;
3448 char *key;
3449 struct chunk *trash_key;
3450 int len;
3451
3452 trash_key = get_trash_chunk();
3453
3454 /* collect reference */
3455 ref = pat_ref_lookup(rule->arg.map.ref);
3456 if (!ref)
3457 continue;
3458
3459 /* collect key */
3460 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
3461 key = trash_key->str;
3462 key[len] = '\0';
3463
3464 /* perform update */
3465 /* add entry only if it does not already exist */
3466 if (pat_ref_find_elt(ref, key) == NULL)
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]3467 pat_ref_add(ref, key, NULL, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3468
3469 break;
3470 }
3471
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3472 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3473 struct pat_ref *ref;
3474 char *key, *value;
3475 struct chunk *trash_key, *trash_value;
3476 int len;
3477
3478 trash_key = get_trash_chunk();
3479 trash_value = get_trash_chunk();
3480
3481 /* collect reference */
3482 ref = pat_ref_lookup(rule->arg.map.ref);
3483 if (!ref)
3484 continue;
3485
3486 /* collect key */
3487 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
3488 key = trash_key->str;
3489 key[len] = '\0';
3490
3491 /* collect value */
3492 len = build_logline(s, trash_value->str, trash_value->size, &rule->arg.map.value);
3493 value = trash_value->str;
3494 value[len] = '\0';
3495
3496 /* perform update */
3497 if (pat_ref_find_elt(ref, key) != NULL)
3498 /* update entry if it exists */
3499 pat_ref_set(ref, key, value, NULL);
3500 else
3501 /* insert a new entry */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]3502 pat_ref_add(ref, key, value, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3503
3504 break;
3505 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3506
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3507 case ACT_CUSTOM:
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3508 if ((px->options & PR_O_ABRT_CLOSE) && (s->req.flags & (CF_SHUTR|CF_READ_NULL|CF_READ_ERROR)))
3509 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]3510
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3511 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3512 case ACT_RET_ERR:
3513 case ACT_RET_CONT:
3514 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3515 case ACT_RET_STOP:
3516 return HTTP_RULE_RES_DONE;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3517 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3518 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3519 return HTTP_RULE_RES_YIELD;
3520 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3521 break;
3522
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3523 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]3524 /* Note: only the first valid tracking parameter of each
3525 * applies.
3526 */
3527
3528 if (stkctr_entry(&s->stkctr[http_req_trk_idx(rule->action)]) == NULL) {
3529 struct stktable *t;
3530 struct stksess *ts;
3531 struct stktable_key *key;
3532 void *ptr;
3533
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]3534 t = rule->arg.trk_ctr.table.t;
3535 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]3536
3537 if (key && (ts = stktable_get_entry(t, key))) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3538 stream_track_stkctr(&s->stkctr[http_req_trk_idx(rule->action)], t, ts);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]3539
3540 /* let's count a new HTTP request as it's the first time we do it */
3541 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
3542 if (ptr)
3543 stktable_data_cast(ptr, http_req_cnt)++;
3544
3545 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
3546 if (ptr)
3547 update_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
3548 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
3549
3550 stkctr_set_flags(&s->stkctr[http_req_trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3551 if (sess->fe != s->be)
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]3552 stkctr_set_flags(&s->stkctr[http_req_trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
3553 }
3554 }
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]3555 break;
3556
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]3557 /* other flags exists, but normaly, they never be matched. */
3558 default:
3559 break;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3560 }
3561 }
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3562
3563 /* we reached the end of the rules, nothing to report */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3564 return HTTP_RULE_RES_CONT;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3565}
3566
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3567
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3568/* Executes the http-response rules <rules> for stream <s> and proxy <px>. It
3569 * returns one of 5 possible statuses: HTTP_RULE_RES_CONT, HTTP_RULE_RES_STOP,
3570 * HTTP_RULE_RES_DONE, HTTP_RULE_RES_YIELD, or HTTP_RULE_RES_BADREQ. If *CONT
3571 * is returned, the process can continue the evaluation of next rule list. If
3572 * *STOP or *DONE is returned, the process must stop the evaluation. If *BADREQ
3573 * is returned, it means the operation could not be processed and a server error
3574 * must be returned. It may set the TX_SVDENY on txn->flags if it encounters a
3575 * deny rule. If *YIELD is returned, the caller must call again the function
3576 * with the same context.
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3577 */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3578static enum rule_result
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]3579http_res_get_intercept_rule(struct proxy *px, struct list *rules, struct stream *s)
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3580{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3581 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]3582 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3583 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]3584 struct act_rule *rule;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3585 struct hdr_ctx ctx;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3586 int act_flags = 0;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3587
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3588 /* If "the current_rule_list" match the executed rule list, we are in
3589 * resume condition. If a resume is needed it is always in the action
3590 * and never in the ACL or converters. In this case, we initialise the
3591 * current rule, and go to the action execution point.
3592 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3593 if (s->current_rule) {
3594 rule = s->current_rule;
3595 s->current_rule = NULL;
3596 if (s->current_rule_list == rules)
3597 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3598 }
3599 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3600
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3601 list_for_each_entry(rule, rules, list) {
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3602
3603 /* check optional condition */
3604 if (rule->cond) {
3605 int ret;
3606
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3607 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]3608 ret = acl_pass(ret);
3609
3610 if (rule->cond->pol == ACL_COND_UNLESS)
3611 ret = !ret;
3612
3613 if (!ret) /* condition not matched */
3614 continue;
3615 }
3616
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3617 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3618resume_execution:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3619 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3620 case ACT_ACTION_ALLOW:
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3621 return HTTP_RULE_RES_STOP; /* "allow" rules are OK */
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3622
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3623 case ACT_ACTION_DENY:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3624 txn->flags |= TX_SVDENY;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3625 return HTTP_RULE_RES_STOP;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3626
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3627 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]3628 s->task->nice = rule->arg.nice;
3629 break;
3630
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3631 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3632 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]3633 inet_set_tos(cli_conn->t.sock.fd, &cli_conn->addr.from, rule->arg.tos);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]3634 break;
3635
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3636 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]3637#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3638 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3639 setsockopt(cli_conn->t.sock.fd, SOL_SOCKET, SO_MARK, &rule->arg.mark, sizeof(rule->arg.mark));
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]3640#endif
3641 break;
3642
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3643 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]3644 s->logs.level = rule->arg.loglevel;
3645 break;
3646
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3647 case ACT_HTTP_REPLACE_HDR:
3648 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3649 if (http_transform_header(s, &txn->rsp, rule->arg.hdr_add.name,
3650 rule->arg.hdr_add.name_len,
3651 &rule->arg.hdr_add.fmt,
3652 &rule->arg.hdr_add.re, rule->action))
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3653 return HTTP_RULE_RES_STOP; /* note: we should report an error here */
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3654 break;
3655
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3656 case ACT_HTTP_DEL_HDR:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3657 ctx.idx = 0;
3658 /* remove all occurrences of the header */
3659 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
3660 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
3661 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
3662 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]3663 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3664
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3665 case ACT_HTTP_SET_HDR:
3666 case ACT_HTTP_ADD_HDR:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3667 chunk_printf(&trash, "%s: ", rule->arg.hdr_add.name);
3668 memcpy(trash.str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
3669 trash.len = rule->arg.hdr_add.name_len;
3670 trash.str[trash.len++] = ':';
3671 trash.str[trash.len++] = ' ';
3672 trash.len += build_logline(s, trash.str + trash.len, trash.size - trash.len, &rule->arg.hdr_add.fmt);
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]3673
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3674 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]3675 /* remove all occurrences of the header */
3676 ctx.idx = 0;
3677 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
3678 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
3679 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
3680 }
3681 }
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3682 http_header_add_tail2(&txn->rsp, &txn->hdr_idx, trash.str, trash.len);
3683 break;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3684
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3685 case ACT_HTTP_DEL_ACL:
3686 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3687 struct pat_ref *ref;
3688 char *key;
3689 int len;
3690
3691 /* collect reference */
3692 ref = pat_ref_lookup(rule->arg.map.ref);
3693 if (!ref)
3694 continue;
3695
3696 /* collect key */
3697 len = build_logline(s, trash.str, trash.size, &rule->arg.map.key);
3698 key = trash.str;
3699 key[len] = '\0';
3700
3701 /* perform update */
3702 /* returned code: 1=ok, 0=ko */
3703 pat_ref_delete(ref, key);
3704
3705 break;
3706 }
3707
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3708 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3709 struct pat_ref *ref;
3710 char *key;
3711 struct chunk *trash_key;
3712 int len;
3713
3714 trash_key = get_trash_chunk();
3715
3716 /* collect reference */
3717 ref = pat_ref_lookup(rule->arg.map.ref);
3718 if (!ref)
3719 continue;
3720
3721 /* collect key */
3722 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
3723 key = trash_key->str;
3724 key[len] = '\0';
3725
3726 /* perform update */
3727 /* check if the entry already exists */
3728 if (pat_ref_find_elt(ref, key) == NULL)
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]3729 pat_ref_add(ref, key, NULL, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3730
3731 break;
3732 }
3733
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3734 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3735 struct pat_ref *ref;
3736 char *key, *value;
3737 struct chunk *trash_key, *trash_value;
3738 int len;
3739
3740 trash_key = get_trash_chunk();
3741 trash_value = get_trash_chunk();
3742
3743 /* collect reference */
3744 ref = pat_ref_lookup(rule->arg.map.ref);
3745 if (!ref)
3746 continue;
3747
3748 /* collect key */
3749 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
3750 key = trash_key->str;
3751 key[len] = '\0';
3752
3753 /* collect value */
3754 len = build_logline(s, trash_value->str, trash_value->size, &rule->arg.map.value);
3755 value = trash_value->str;
3756 value[len] = '\0';
3757
3758 /* perform update */
3759 if (pat_ref_find_elt(ref, key) != NULL)
3760 /* update entry if it exists */
3761 pat_ref_set(ref, key, value, NULL);
3762 else
3763 /* insert a new entry */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]3764 pat_ref_add(ref, key, value, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3765
3766 break;
3767 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3768
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3769 case ACT_HTTP_REDIR:
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3770 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
3771 return HTTP_RULE_RES_BADREQ;
3772 return HTTP_RULE_RES_DONE;
3773
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3774 case ACT_CUSTOM:
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3775 if ((px->options & PR_O_ABRT_CLOSE) && (s->req.flags & (CF_SHUTR|CF_READ_NULL|CF_READ_ERROR)))
3776 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]3777
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3778 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3779 case ACT_RET_ERR:
3780 case ACT_RET_CONT:
3781 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3782 case ACT_RET_STOP:
3783 return HTTP_RULE_RES_STOP;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3784 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3785 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3786 return HTTP_RULE_RES_YIELD;
3787 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3788 break;
3789
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]3790 /* other flags exists, but normaly, they never be matched. */
3791 default:
3792 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3793 }
3794 }
3795
3796 /* we reached the end of the rules, nothing to report */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3797 return HTTP_RULE_RES_CONT;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3798}
3799
3800
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3801/* Perform an HTTP redirect based on the information in <rule>. The function
3802 * returns non-zero on success, or zero in case of a, irrecoverable error such
3803 * as too large a request to build a valid response.
3804 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3805static 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]3806{
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3807 struct http_msg *req = &txn->req;
3808 struct http_msg *res = &txn->rsp;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3809 const char *msg_fmt;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3810 const char *location;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3811
3812 /* build redirect message */
3813 switch(rule->code) {
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]3814 case 308:
3815 msg_fmt = HTTP_308;
3816 break;
3817 case 307:
3818 msg_fmt = HTTP_307;
3819 break;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3820 case 303:
3821 msg_fmt = HTTP_303;
3822 break;
3823 case 301:
3824 msg_fmt = HTTP_301;
3825 break;
3826 case 302:
3827 default:
3828 msg_fmt = HTTP_302;
3829 break;
3830 }
3831
3832 if (unlikely(!chunk_strcpy(&trash, msg_fmt)))
3833 return 0;
3834
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3835 location = trash.str + trash.len;
3836
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3837 switch(rule->type) {
3838 case REDIRECT_TYPE_SCHEME: {
3839 const char *path;
3840 const char *host;
3841 struct hdr_ctx ctx;
3842 int pathlen;
3843 int hostlen;
3844
3845 host = "";
3846 hostlen = 0;
3847 ctx.idx = 0;
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3848 if (http_find_header2("Host", 4, req->chn->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3849 host = ctx.line + ctx.val;
3850 hostlen = ctx.vlen;
3851 }
3852
3853 path = http_get_path(txn);
3854 /* build message using path */
3855 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3856 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]3857 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3858 int qs = 0;
3859 while (qs < pathlen) {
3860 if (path[qs] == '?') {
3861 pathlen = qs;
3862 break;
3863 }
3864 qs++;
3865 }
3866 }
3867 } else {
3868 path = "/";
3869 pathlen = 1;
3870 }
3871
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3872 if (rule->rdr_str) { /* this is an old "redirect" rule */
3873 /* check if we can add scheme + "://" + host + path */
3874 if (trash.len + rule->rdr_len + 3 + hostlen + pathlen > trash.size - 4)
3875 return 0;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3876
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3877 /* add scheme */
3878 memcpy(trash.str + trash.len, rule->rdr_str, rule->rdr_len);
3879 trash.len += rule->rdr_len;
3880 }
3881 else {
3882 /* add scheme with executing log format */
3883 trash.len += build_logline(s, trash.str + trash.len, trash.size - trash.len, &rule->rdr_fmt);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3884
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3885 /* check if we can add scheme + "://" + host + path */
3886 if (trash.len + 3 + hostlen + pathlen > trash.size - 4)
3887 return 0;
3888 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3889 /* add "://" */
3890 memcpy(trash.str + trash.len, "://", 3);
3891 trash.len += 3;
3892
3893 /* add host */
3894 memcpy(trash.str + trash.len, host, hostlen);
3895 trash.len += hostlen;
3896
3897 /* add path */
3898 memcpy(trash.str + trash.len, path, pathlen);
3899 trash.len += pathlen;
3900
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3901 /* append a slash at the end of the location if needed and missing */
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3902 if (trash.len && trash.str[trash.len - 1] != '/' &&
3903 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
3904 if (trash.len > trash.size - 5)
3905 return 0;
3906 trash.str[trash.len] = '/';
3907 trash.len++;
3908 }
3909
3910 break;
3911 }
3912 case REDIRECT_TYPE_PREFIX: {
3913 const char *path;
3914 int pathlen;
3915
3916 path = http_get_path(txn);
3917 /* build message using path */
3918 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3919 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]3920 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3921 int qs = 0;
3922 while (qs < pathlen) {
3923 if (path[qs] == '?') {
3924 pathlen = qs;
3925 break;
3926 }
3927 qs++;
3928 }
3929 }
3930 } else {
3931 path = "/";
3932 pathlen = 1;
3933 }
3934
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3935 if (rule->rdr_str) { /* this is an old "redirect" rule */
3936 if (trash.len + rule->rdr_len + pathlen > trash.size - 4)
3937 return 0;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3938
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3939 /* add prefix. Note that if prefix == "/", we don't want to
3940 * add anything, otherwise it makes it hard for the user to
3941 * configure a self-redirection.
3942 */
3943 if (rule->rdr_len != 1 || *rule->rdr_str != '/') {
3944 memcpy(trash.str + trash.len, rule->rdr_str, rule->rdr_len);
3945 trash.len += rule->rdr_len;
3946 }
3947 }
3948 else {
3949 /* add prefix with executing log format */
3950 trash.len += build_logline(s, trash.str + trash.len, trash.size - trash.len, &rule->rdr_fmt);
3951
3952 /* Check length */
3953 if (trash.len + pathlen > trash.size - 4)
3954 return 0;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3955 }
3956
3957 /* add path */
3958 memcpy(trash.str + trash.len, path, pathlen);
3959 trash.len += pathlen;
3960
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3961 /* append a slash at the end of the location if needed and missing */
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3962 if (trash.len && trash.str[trash.len - 1] != '/' &&
3963 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
3964 if (trash.len > trash.size - 5)
3965 return 0;
3966 trash.str[trash.len] = '/';
3967 trash.len++;
3968 }
3969
3970 break;
3971 }
3972 case REDIRECT_TYPE_LOCATION:
3973 default:
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3974 if (rule->rdr_str) { /* this is an old "redirect" rule */
3975 if (trash.len + rule->rdr_len > trash.size - 4)
3976 return 0;
3977
3978 /* add location */
3979 memcpy(trash.str + trash.len, rule->rdr_str, rule->rdr_len);
3980 trash.len += rule->rdr_len;
3981 }
3982 else {
3983 /* add location with executing log format */
3984 trash.len += build_logline(s, trash.str + trash.len, trash.size - trash.len, &rule->rdr_fmt);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3985
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3986 /* Check left length */
3987 if (trash.len > trash.size - 4)
3988 return 0;
3989 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3990 break;
3991 }
3992
3993 if (rule->cookie_len) {
3994 memcpy(trash.str + trash.len, "\r\nSet-Cookie: ", 14);
3995 trash.len += 14;
3996 memcpy(trash.str + trash.len, rule->cookie_str, rule->cookie_len);
3997 trash.len += rule->cookie_len;
3998 memcpy(trash.str + trash.len, "\r\n", 2);
3999 trash.len += 2;
4000 }
4001
4002 /* add end of headers and the keep-alive/close status.
4003 * We may choose to set keep-alive if the Location begins
4004 * with a slash, because the client will come back to the
4005 * same server.
4006 */
4007 txn->status = rule->code;
4008 /* let's log the request time */
4009 s->logs.tv_request = now;
4010
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]4011 if (*location == '/' &&
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4012 (req->flags & HTTP_MSGF_XFER_LEN) &&
Willy Tarreau2de8a502015-05-28 17:23:54 +0200[diff] [blame]4013 ((!(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]4014 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
4015 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
4016 /* keep-alive possible */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4017 if (!(req->flags & HTTP_MSGF_VER_11)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4018 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
4019 memcpy(trash.str + trash.len, "\r\nProxy-Connection: keep-alive", 30);
4020 trash.len += 30;
4021 } else {
4022 memcpy(trash.str + trash.len, "\r\nConnection: keep-alive", 24);
4023 trash.len += 24;
4024 }
4025 }
4026 memcpy(trash.str + trash.len, "\r\n\r\n", 4);
4027 trash.len += 4;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]4028 FLT_STRM_CB(s, flt_http_reply(s, txn->status, &trash));
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4029 bo_inject(res->chn, trash.str, trash.len);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4030 /* "eat" the request */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4031 bi_fast_delete(req->chn->buf, req->sov);
4032 req->next -= req->sov;
4033 req->sov = 0;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4034 s->req.analysers = AN_REQ_HTTP_XFER_BODY | (s->req.analysers & AN_FLT_END);
4035 s->res.analysers = AN_RES_HTTP_XFER_BODY | (s->req.analysers & AN_FLT_END);
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4036 req->msg_state = HTTP_MSG_CLOSED;
4037 res->msg_state = HTTP_MSG_DONE;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]4038 /* Trim any possible response */
4039 res->chn->buf->i = 0;
4040 res->next = res->sov = 0;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4041 } else {
4042 /* keep-alive not possible */
4043 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
4044 memcpy(trash.str + trash.len, "\r\nProxy-Connection: close\r\n\r\n", 29);
4045 trash.len += 29;
4046 } else {
4047 memcpy(trash.str + trash.len, "\r\nConnection: close\r\n\r\n", 23);
4048 trash.len += 23;
4049 }
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4050 http_reply_and_close(s, txn->status, &trash);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4051 req->chn->analysers &= AN_FLT_END;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4052 }
4053
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4054 if (!(s->flags & SF_ERR_MASK))
4055 s->flags |= SF_ERR_LOCAL;
4056 if (!(s->flags & SF_FINST_MASK))
4057 s->flags |= SF_FINST_R;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4058
4059 return 1;
4060}
4061
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4062/* This stream analyser runs all HTTP request processing which is common to
4063 * frontends and backends, which means blocking ACLs, filters, connection-close,
4064 * reqadd, stats and redirects. This is performed for the designated proxy.
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]4065 * 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]4066 * either needs more data or wants to immediately abort the request (eg: deny,
4067 * error, ...).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]4068 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4069int 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]4070{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4071 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4072 struct http_txn *txn = s->txn;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]4073 struct http_msg *msg = &txn->req;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4074 struct redirect_rule *rule;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100[diff] [blame]4075 struct cond_wordlist *wl;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4076 enum rule_result verdict;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]4077 int deny_status = HTTP_ERR_403;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]4078
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]4079 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]4080 /* we need more data */
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]4081 goto return_prx_yield;
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]4082 }
4083
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4084 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]4085 now_ms, __FUNCTION__,
4086 s,
4087 req,
4088 req->rex, req->wex,
4089 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4090 req->buf->i,
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]4091 req->analysers);
4092
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]4093 /* just in case we have some per-backend tracking */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4094 stream_inc_be_http_req_ctr(s);
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]4095
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]4096 /* evaluate http-request rules */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4097 if (!LIST_ISEMPTY(&px->http_req_rules)) {
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]4098 verdict = http_req_get_intercept_rule(px, &px->http_req_rules, s, &deny_status);
Willy Tarreau51425942010-02-01 10:40:19 +0100[diff] [blame]4099
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4100 switch (verdict) {
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]4101 case HTTP_RULE_RES_YIELD: /* some data miss, call the function later. */
4102 goto return_prx_yield;
4103
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4104 case HTTP_RULE_RES_CONT:
4105 case HTTP_RULE_RES_STOP: /* nothing to do */
4106 break;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4107
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4108 case HTTP_RULE_RES_DENY: /* deny or tarpit */
4109 if (txn->flags & TX_CLTARPIT)
4110 goto tarpit;
4111 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4112
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4113 case HTTP_RULE_RES_ABRT: /* abort request, response already sent. Eg: auth */
4114 goto return_prx_cond;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4115
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4116 case HTTP_RULE_RES_DONE: /* OK, but terminate request processing (eg: redirect) */
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4117 goto done;
4118
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4119 case HTTP_RULE_RES_BADREQ: /* failed with a bad request */
4120 goto return_bad_req;
4121 }
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4122 }
4123
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4124 /* OK at this stage, we know that the request was accepted according to
4125 * the http-request rules, we can check for the stats. Note that the
4126 * URI is detected *before* the req* rules in order not to be affected
4127 * by a possible reqrep, while they are processed *after* so that a
4128 * reqdeny can still block them. This clearly needs to change in 1.6!
4129 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4130 if (stats_check_uri(&s->si[1], txn, px)) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4131 s->target = &http_stats_applet.obj_type;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4132 if (unlikely(!stream_int_register_handler(&s->si[1], objt_applet(s->target)))) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4133 txn->status = 500;
4134 s->logs.tv_request = now;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4135 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_500));
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]4136
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4137 if (!(s->flags & SF_ERR_MASK))
4138 s->flags |= SF_ERR_RESOURCE;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4139 goto return_prx_cond;
4140 }
4141
4142 /* parse the whole stats request and extract the relevant information */
4143 http_handle_stats(s, req);
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]4144 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]4145 /* not all actions implemented: deny, allow, auth */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4146
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4147 if (verdict == HTTP_RULE_RES_DENY) /* stats http-request deny */
4148 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4149
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4150 if (verdict == HTTP_RULE_RES_ABRT) /* stats auth / stats http-request auth */
4151 goto return_prx_cond;
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +0100[diff] [blame]4152 }
4153
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4154 /* evaluate the req* rules except reqadd */
4155 if (px->req_exp != NULL) {
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]4156 if (apply_filters_to_request(s, req, px) < 0)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4157 goto return_bad_req;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4158
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4159 if (txn->flags & TX_CLDENY)
4160 goto deny;
Willy Tarreauc465fd72009-08-31 00:17:18 +0200[diff] [blame]4161
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4162 if (txn->flags & TX_CLTARPIT)
4163 goto tarpit;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4164 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4165
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]4166 /* add request headers from the rule sets in the same order */
4167 list_for_each_entry(wl, &px->req_add, list) {
4168 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]4169 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]4170 ret = acl_pass(ret);
4171 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
4172 ret = !ret;
4173 if (!ret)
4174 continue;
4175 }
4176
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]4177 if (unlikely(http_header_add_tail(&txn->req, &txn->hdr_idx, wl->s) < 0))
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]4178 goto return_bad_req;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]4179 }
4180
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4181
4182 /* Proceed with the stats now. */
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]4183 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]4184 /* process the stats request now */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4185 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
4186 sess->fe->fe_counters.intercepted_req++;
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]4187
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4188 if (!(s->flags & SF_ERR_MASK)) // this is not really an error but it is
4189 s->flags |= SF_ERR_LOCAL; // to mark that it comes from the proxy
4190 if (!(s->flags & SF_FINST_MASK))
4191 s->flags |= SF_FINST_R;
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]4192
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]4193 /* enable the minimally required analyzers to handle keep-alive and compression on the HTTP response */
Christopher Faulet309c6412015-12-02 09:57:32 +0100[diff] [blame]4194 req->analysers &= (AN_REQ_HTTP_BODY | AN_FLT_HTTP_HDRS | AN_FLT_END);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4195 req->analysers &= ~AN_FLT_XFER_DATA;
4196 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4197 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4198 }
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]4199
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4200 /* check whether we have some ACLs set to redirect this request */
4201 list_for_each_entry(rule, &px->redirect_rules, list) {
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]4202 if (rule->cond) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4203 int ret;
4204
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]4205 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]4206 ret = acl_pass(ret);
4207 if (rule->cond->pol == ACL_COND_UNLESS)
4208 ret = !ret;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4209 if (!ret)
4210 continue;
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]4211 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4212 if (!http_apply_redirect_rule(rule, s, txn))
4213 goto return_bad_req;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4214 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4215 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]4216
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]4217 /* POST requests may be accompanied with an "Expect: 100-Continue" header.
4218 * If this happens, then the data will not come immediately, so we must
4219 * send all what we have without waiting. Note that due to the small gain
4220 * 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]4221 * 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]4222 * itself once used.
4223 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4224 req->flags |= CF_SEND_DONTWAIT;
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]4225
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4226 done: /* done with this analyser, continue with next ones that the calling
4227 * points will have set, if any.
4228 */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4229 req->analyse_exp = TICK_ETERNITY;
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]4230 done_without_exp: /* done with this analyser, but dont reset the analyse_exp. */
4231 req->analysers &= ~an_bit;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4232 return 1;
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]4233
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4234 tarpit:
4235 /* When a connection is tarpitted, we use the tarpit timeout,
4236 * which may be the same as the connect timeout if unspecified.
4237 * If unset, then set it to zero because we really want it to
4238 * eventually expire. We build the tarpit as an analyser.
4239 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4240 channel_erase(&s->req);
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4241
4242 /* wipe the request out so that we can drop the connection early
4243 * if the client closes first.
4244 */
4245 channel_dont_connect(req);
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]4246
4247 /* Allow cookie logging
4248 */
4249 if (s->be->cookie_name || sess->fe->capture_name)
4250 manage_client_side_cookies(s, req);
4251
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4252 req->analysers &= AN_FLT_END; /* remove switching rules etc... */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4253 req->analysers |= AN_REQ_HTTP_TARPIT;
4254 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.tarpit);
4255 if (!req->analyse_exp)
4256 req->analyse_exp = tick_add(now_ms, 0);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4257 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4258 sess->fe->fe_counters.denied_req++;
4259 if (sess->fe != s->be)
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4260 s->be->be_counters.denied_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4261 if (sess->listener->counters)
4262 sess->listener->counters->denied_req++;
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]4263 goto done_without_exp;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4264
4265 deny: /* this request was blocked (denied) */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]4266
4267 /* Allow cookie logging
4268 */
4269 if (s->be->cookie_name || sess->fe->capture_name)
4270 manage_client_side_cookies(s, req);
4271
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4272 txn->flags |= TX_CLDENY;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]4273 txn->status = http_err_codes[deny_status];
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4274 s->logs.tv_request = now;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]4275 http_reply_and_close(s, txn->status, http_error_message(s, deny_status));
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4276 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4277 sess->fe->fe_counters.denied_req++;
4278 if (sess->fe != s->be)
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4279 s->be->be_counters.denied_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4280 if (sess->listener->counters)
4281 sess->listener->counters->denied_req++;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4282 goto return_prx_cond;
4283
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4284 return_bad_req:
4285 /* We centralize bad requests processing here */
4286 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
4287 /* we detected a parsing error. We want to archive this request
4288 * in the dedicated proxy area for later troubleshooting.
4289 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4290 http_capture_bad_message(&sess->fe->invalid_req, s, msg, msg->msg_state, sess->fe);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4291 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]4292
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4293 txn->req.msg_state = HTTP_MSG_ERROR;
4294 txn->status = 400;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4295 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_400));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]4296
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4297 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4298 if (sess->listener->counters)
4299 sess->listener->counters->failed_req++;
Willy Tarreau6e4261e2007-09-18 18:36:05 +0200[diff] [blame]4300
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4301 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4302 if (!(s->flags & SF_ERR_MASK))
4303 s->flags |= SF_ERR_PRXCOND;
4304 if (!(s->flags & SF_FINST_MASK))
4305 s->flags |= SF_FINST_R;
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100[diff] [blame]4306
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4307 req->analysers &= AN_FLT_END;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4308 req->analyse_exp = TICK_ETERNITY;
4309 return 0;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]4310
4311 return_prx_yield:
4312 channel_dont_connect(req);
4313 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4314}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]4315
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4316/* This function performs all the processing enabled for the current request.
4317 * It returns 1 if the processing can continue on next analysers, or zero if it
4318 * needs more data, encounters an error, or wants to immediately abort the
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4319 * request. It relies on buffers flags, and updates s->req.analysers.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4320 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4321int http_process_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4322{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4323 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4324 struct http_txn *txn = s->txn;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4325 struct http_msg *msg = &txn->req;
Willy Tarreauee335e62015-04-21 18:15:13 +0200[diff] [blame]4326 struct connection *cli_conn = objt_conn(strm_sess(s)->origin);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]4327
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]4328 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]4329 /* we need more data */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4330 channel_dont_connect(req);
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]4331 return 0;
4332 }
4333
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4334 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]4335 now_ms, __FUNCTION__,
4336 s,
4337 req,
4338 req->rex, req->wex,
4339 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4340 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4341 req->analysers);
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4342
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4343 /*
4344 * Right now, we know that we have processed the entire headers
4345 * and that unwanted requests have been filtered out. We can do
4346 * whatever we want with the remaining request. Also, now we
4347 * may have separate values for ->fe, ->be.
4348 */
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4349
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4350 /*
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4351 * If HTTP PROXY is set we simply get remote server address parsing
4352 * incoming request. Note that this requires that a connection is
4353 * allocated on the server side.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4354 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4355 if ((s->be->options & PR_O_HTTP_PROXY) && !(s->flags & SF_ADDR_SET)) {
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]4356 struct connection *conn;
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]4357 char *path;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]4358
Willy Tarreau9471b8c2013-12-15 13:31:35 +0100[diff] [blame]4359 /* Note that for now we don't reuse existing proxy connections */
Willy Tarreau973a5422015-08-05 21:47:23 +0200[diff] [blame]4360 if (unlikely((conn = si_alloc_conn(&s->si[1])) == NULL)) {
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]4361 txn->req.msg_state = HTTP_MSG_ERROR;
4362 txn->status = 500;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4363 req->analysers &= AN_FLT_END;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4364 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_500));
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]4365
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4366 if (!(s->flags & SF_ERR_MASK))
4367 s->flags |= SF_ERR_RESOURCE;
4368 if (!(s->flags & SF_FINST_MASK))
4369 s->flags |= SF_FINST_R;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]4370
4371 return 0;
4372 }
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]4373
4374 path = http_get_path(txn);
4375 url2sa(req->buf->p + msg->sl.rq.u,
4376 path ? path - (req->buf->p + msg->sl.rq.u) : msg->sl.rq.u_l,
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]4377 &conn->addr.to, NULL);
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]4378 /* if the path was found, we have to remove everything between
4379 * req->buf->p + msg->sl.rq.u and path (excluded). If it was not
4380 * found, we need to replace from req->buf->p + msg->sl.rq.u for
4381 * u_l characters by a single "/".
4382 */
4383 if (path) {
4384 char *cur_ptr = req->buf->p;
4385 char *cur_end = cur_ptr + txn->req.sl.rq.l;
4386 int delta;
4387
4388 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u, path, NULL, 0);
4389 http_msg_move_end(&txn->req, delta);
4390 cur_end += delta;
4391 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
4392 goto return_bad_req;
4393 }
4394 else {
4395 char *cur_ptr = req->buf->p;
4396 char *cur_end = cur_ptr + txn->req.sl.rq.l;
4397 int delta;
4398
4399 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u,
4400 req->buf->p + msg->sl.rq.u + msg->sl.rq.u_l, "/", 1);
4401 http_msg_move_end(&txn->req, delta);
4402 cur_end += delta;
4403 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
4404 goto return_bad_req;
4405 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4406 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]4407
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4408 /*
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]4409 * 7: Now we can work with the cookies.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4410 * Note that doing so might move headers in the request, but
4411 * the fields will stay coherent and the URI will not move.
4412 * This should only be performed in the backend.
4413 */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]4414 if (s->be->cookie_name || sess->fe->capture_name)
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4415 manage_client_side_cookies(s, req);
Willy Tarreau7ac51f62007-03-25 16:00:04 +0200[diff] [blame]4416
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]4417 /* add unique-id if "header-unique-id" is specified */
4418
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]4419 if (!LIST_ISEMPTY(&sess->fe->format_unique_id) && !s->unique_id) {
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]4420 if ((s->unique_id = pool_alloc2(pool2_uniqueid)) == NULL)
4421 goto return_bad_req;
4422 s->unique_id[0] = '\0';
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4423 build_logline(s, s->unique_id, UNIQUEID_LEN, &sess->fe->format_unique_id);
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]4424 }
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]4425
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4426 if (sess->fe->header_unique_id && s->unique_id) {
4427 chunk_printf(&trash, "%s: %s", sess->fe->header_unique_id, s->unique_id);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4428 if (trash.len < 0)
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]4429 goto return_bad_req;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4430 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]4431 goto return_bad_req;
4432 }
4433
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]4434 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4435 * 9: add X-Forwarded-For if either the frontend or the backend
4436 * asks for it.
4437 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4438 if ((sess->fe->options | s->be->options) & PR_O_FWDFOR) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]4439 struct hdr_ctx ctx = { .idx = 0 };
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4440 if (!((sess->fe->options | s->be->options) & PR_O_FF_ALWAYS) &&
4441 http_find_header2(s->be->fwdfor_hdr_len ? s->be->fwdfor_hdr_name : sess->fe->fwdfor_hdr_name,
4442 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]4443 req->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]4444 /* The header is set to be added only if none is present
4445 * and we found it, so don't do anything.
4446 */
4447 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4448 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4449 /* Add an X-Forwarded-For header unless the source IP is
4450 * in the 'except' network range.
4451 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4452 if ((!sess->fe->except_mask.s_addr ||
4453 (((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr.s_addr & sess->fe->except_mask.s_addr)
4454 != sess->fe->except_net.s_addr) &&
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4455 (!s->be->except_mask.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4456 (((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]4457 != s->be->except_net.s_addr)) {
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]4458 int len;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4459 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4460 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr;
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]4461
4462 /* Note: we rely on the backend to get the header name to be used for
4463 * x-forwarded-for, because the header is really meant for the backends.
4464 * However, if the backend did not specify any option, we have to rely
4465 * on the frontend's header name.
4466 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4467 if (s->be->fwdfor_hdr_len) {
4468 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4469 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]4470 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4471 len = sess->fe->fwdfor_hdr_len;
4472 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]4473 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]4474 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]4475
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4476 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]4477 goto return_bad_req;
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]4478 }
4479 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4480 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET6) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4481 /* FIXME: for the sake of completeness, we should also support
4482 * 'except' here, although it is mostly useless in this case.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]4483 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4484 int len;
4485 char pn[INET6_ADDRSTRLEN];
4486 inet_ntop(AF_INET6,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4487 (const void *)&((struct sockaddr_in6 *)(&cli_conn->addr.from))->sin6_addr,
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4488 pn, sizeof(pn));
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]4489
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4490 /* Note: we rely on the backend to get the header name to be used for
4491 * x-forwarded-for, because the header is really meant for the backends.
4492 * However, if the backend did not specify any option, we have to rely
4493 * on the frontend's header name.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]4494 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4495 if (s->be->fwdfor_hdr_len) {
4496 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4497 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4498 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4499 len = sess->fe->fwdfor_hdr_len;
4500 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]4501 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]4502 len += snprintf(trash.str + len, trash.size - len, ": %s", pn);
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]4503
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4504 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]4505 goto return_bad_req;
4506 }
4507 }
4508
4509 /*
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4510 * 10: add X-Original-To if either the frontend or the backend
4511 * asks for it.
4512 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4513 if ((sess->fe->options | s->be->options) & PR_O_ORGTO) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4514
4515 /* FIXME: don't know if IPv6 can handle that case too. */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4516 if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4517 /* Add an X-Original-To header unless the destination IP is
4518 * in the 'except' network range.
4519 */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4520 conn_get_to_addr(cli_conn);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4521
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4522 if (cli_conn->addr.to.ss_family == AF_INET &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4523 ((!sess->fe->except_mask_to.s_addr ||
4524 (((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr.s_addr & sess->fe->except_mask_to.s_addr)
4525 != sess->fe->except_to.s_addr) &&
Emeric Brun5bd86a82010-10-22 17:23:04 +0200[diff] [blame]4526 (!s->be->except_mask_to.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4527 (((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]4528 != s->be->except_to.s_addr))) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4529 int len;
4530 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4531 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr;
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4532
4533 /* Note: we rely on the backend to get the header name to be used for
4534 * x-original-to, because the header is really meant for the backends.
4535 * However, if the backend did not specify any option, we have to rely
4536 * on the frontend's header name.
4537 */
4538 if (s->be->orgto_hdr_len) {
4539 len = s->be->orgto_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4540 memcpy(trash.str, s->be->orgto_hdr_name, len);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4541 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4542 len = sess->fe->orgto_hdr_len;
4543 memcpy(trash.str, sess->fe->orgto_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]4544 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]4545 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]4546
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4547 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]4548 goto return_bad_req;
4549 }
4550 }
4551 }
4552
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]4553 /* 11: add "Connection: close" or "Connection: keep-alive" if needed and not yet set.
4554 * If an "Upgrade" token is found, the header is left untouched in order not to have
4555 * to deal with some servers bugs : some of them fail an Upgrade if anything but
4556 * "Upgrade" is present in the Connection header.
4557 */
4558 if (!(txn->flags & TX_HDR_CONN_UPG) &&
4559 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4560 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]4561 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]4562 unsigned int want_flags = 0;
4563
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4564 if (msg->flags & HTTP_MSGF_VER_11) {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]4565 if (((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4566 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]4567 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4568 !((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]4569 want_flags |= TX_CON_CLO_SET;
4570 } else {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]4571 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4572 ((sess->fe->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL &&
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]4573 (s->be->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL)) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4574 ((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]4575 want_flags |= TX_CON_KAL_SET;
4576 }
4577
4578 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]4579 http_change_connection_header(txn, msg, want_flags);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4580 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4581
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]4582
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4583 /* If we have no server assigned yet and we're balancing on url_param
4584 * with a POST request, we may be interested in checking the body for
4585 * that parameter. This will be done in another analyser.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4586 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4587 if (!(s->flags & (SF_ASSIGNED|SF_DIRECT)) &&
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4588 s->txn->meth == HTTP_METH_POST && s->be->url_param_name != NULL &&
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4589 (msg->flags & (HTTP_MSGF_CNT_LEN|HTTP_MSGF_TE_CHNK))) {
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4590 channel_dont_connect(req);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4591 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4592 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]4593
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4594 if (msg->flags & HTTP_MSGF_XFER_LEN) {
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4595 req->analysers &= ~AN_FLT_XFER_DATA;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4596 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]4597#ifdef TCP_QUICKACK
4598 /* We expect some data from the client. Unless we know for sure
4599 * we already have a full request, we have to re-enable quick-ack
4600 * in case we previously disabled it, otherwise we might cause
4601 * the client to delay further data.
4602 */
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4603 if ((sess->listener->options & LI_O_NOQUICKACK) &&
Willy Tarreau3c728722014-01-23 13:50:42 +0100[diff] [blame]4604 cli_conn && conn_ctrl_ready(cli_conn) &&
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4605 ((msg->flags & HTTP_MSGF_TE_CHNK) ||
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4606 (msg->body_len > req->buf->i - txn->req.eoh - 2)))
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4607 setsockopt(cli_conn->t.sock.fd, IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one));
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]4608#endif
4609 }
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]4610
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4611 /*************************************************************
4612 * OK, that's finished for the headers. We have done what we *
4613 * could. Let's switch to the DATA state. *
4614 ************************************************************/
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4615 req->analyse_exp = TICK_ETERNITY;
4616 req->analysers &= ~an_bit;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]4617
Willy Tarreau7bb68ab2012-05-13 14:48:59 +0200[diff] [blame]4618 /* if the server closes the connection, we want to immediately react
4619 * and close the socket to save packets and syscalls.
4620 */
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4621 if (!(req->analysers & AN_REQ_HTTP_XFER_BODY))
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4622 s->si[1].flags |= SI_FL_NOHALF;
Willy Tarreau7bb68ab2012-05-13 14:48:59 +0200[diff] [blame]4623
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4624 s->logs.tv_request = now;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4625 /* OK let's go on with the BODY now */
4626 return 1;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4627
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4628 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]4629 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
Willy Tarreauf073a832009-03-01 23:21:47 +0100[diff] [blame]4630 /* we detected a parsing error. We want to archive this request
4631 * in the dedicated proxy area for later troubleshooting.
4632 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4633 http_capture_bad_message(&sess->fe->invalid_req, s, msg, msg->msg_state, sess->fe);
Willy Tarreauf073a832009-03-01 23:21:47 +0100[diff] [blame]4634 }
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]4635
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4636 txn->req.msg_state = HTTP_MSG_ERROR;
4637 txn->status = 400;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4638 req->analysers &= AN_FLT_END;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4639 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_400));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]4640
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4641 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4642 if (sess->listener->counters)
4643 sess->listener->counters->failed_req++;
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]4644
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4645 if (!(s->flags & SF_ERR_MASK))
4646 s->flags |= SF_ERR_PRXCOND;
4647 if (!(s->flags & SF_FINST_MASK))
4648 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]4649 return 0;
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]4650}
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]4651
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4652/* This function is an analyser which processes the HTTP tarpit. It always
4653 * returns zero, at the beginning because it prevents any other processing
4654 * from occurring, and at the end because it terminates the request.
4655 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4656int http_process_tarpit(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4657{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4658 struct http_txn *txn = s->txn;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4659
4660 /* This connection is being tarpitted. The CLIENT side has
4661 * already set the connect expiration date to the right
4662 * timeout. We just have to check that the client is still
4663 * there and that the timeout has not expired.
4664 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4665 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4666 if ((req->flags & (CF_SHUTR|CF_READ_ERROR)) == 0 &&
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4667 !tick_is_expired(req->analyse_exp, now_ms))
4668 return 0;
4669
4670 /* We will set the queue timer to the time spent, just for
4671 * logging purposes. We fake a 500 server error, so that the
4672 * attacker will not suspect his connection has been tarpitted.
4673 * It will not cause trouble to the logs because we can exclude
4674 * the tarpitted connections by filtering on the 'PT' status flags.
4675 */
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4676 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
4677
4678 txn->status = 500;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4679 if (!(req->flags & CF_READ_ERROR))
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4680 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_500));
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4681
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4682 req->analysers &= AN_FLT_END;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4683 req->analyse_exp = TICK_ETERNITY;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]4684
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4685 if (!(s->flags & SF_ERR_MASK))
4686 s->flags |= SF_ERR_PRXCOND;
4687 if (!(s->flags & SF_FINST_MASK))
4688 s->flags |= SF_FINST_T;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4689 return 0;
4690}
4691
Willy Tarreau5a8f9472014-04-10 11:16:06 +0200[diff] [blame]4692/* This function is an analyser which waits for the HTTP request body. It waits
4693 * for either the buffer to be full, or the full advertised contents to have
4694 * reached the buffer. It must only be called after the standard HTTP request
4695 * processing has occurred, because it expects the request to be parsed and will
4696 * look for the Expect header. It may send a 100-Continue interim response. It
4697 * takes in input any state starting from HTTP_MSG_BODY and leaves with one of
4698 * HTTP_MSG_CHK_SIZE, HTTP_MSG_DATA or HTTP_MSG_TRAILERS. It returns zero if it
4699 * needs to read more data, or 1 once it has completed its analysis.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4700 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4701int http_wait_for_request_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4702{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4703 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4704 struct http_txn *txn = s->txn;
4705 struct http_msg *msg = &s->txn->req;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4706
4707 /* We have to parse the HTTP request body to find any required data.
4708 * "balance url_param check_post" should have been the only way to get
4709 * into this. We were brought here after HTTP header analysis, so all
4710 * related structures are ready.
4711 */
4712
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4713 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE) {
4714 /* This is the first call */
4715 if (msg->msg_state < HTTP_MSG_BODY)
4716 goto missing_data;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4717
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4718 if (msg->msg_state < HTTP_MSG_100_SENT) {
4719 /* If we have HTTP/1.1 and Expect: 100-continue, then we must
4720 * send an HTTP/1.1 100 Continue intermediate response.
4721 */
4722 if (msg->flags & HTTP_MSGF_VER_11) {
4723 struct hdr_ctx ctx;
4724 ctx.idx = 0;
4725 /* Expect is allowed in 1.1, look for it */
4726 if (http_find_header2("Expect", 6, req->buf->p, &txn->hdr_idx, &ctx) &&
4727 unlikely(ctx.vlen == 12 && strncasecmp(ctx.line+ctx.val, "100-continue", 12) == 0)) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4728 bo_inject(&s->res, http_100_chunk.str, http_100_chunk.len);
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4729 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4730 }
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4731 msg->msg_state = HTTP_MSG_100_SENT;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4732 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4733
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]4734 /* we have msg->sov which points to the first byte of message body.
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4735 * req->buf->p still points to the beginning of the message. We
4736 * must save the body in msg->next because it survives buffer
4737 * re-alignments.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4738 */
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]4739 msg->next = msg->sov;
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4740
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4741 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4742 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
4743 else
4744 msg->msg_state = HTTP_MSG_DATA;
4745 }
4746
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4747 if (!(msg->flags & HTTP_MSGF_TE_CHNK)) {
4748 /* We're in content-length mode, we just have to wait for enough data. */
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4749 if (http_body_bytes(msg) < msg->body_len)
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4750 goto missing_data;
4751
4752 /* OK we have everything we need now */
4753 goto http_end;
4754 }
4755
4756 /* OK here we're parsing a chunked-encoded message */
4757
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4758 if (msg->msg_state == HTTP_MSG_CHUNK_SIZE) {
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]4759 /* read the chunk size and assign it to ->chunk_len, then
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4760 * set ->sov and ->next to point to the body and switch to DATA or
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4761 * TRAILERS state.
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4762 */
Willy Tarreau4baf44b2012-03-09 14:10:20 +0100[diff] [blame]4763 int ret = http_parse_chunk_size(msg);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4764
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4765 if (!ret)
4766 goto missing_data;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4767 else if (ret < 0) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4768 stream_inc_http_err_ctr(s);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4769 goto return_bad_req;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4770 }
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]4771 msg->next += ret;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4772 msg->msg_state = msg->chunk_len ? HTTP_MSG_DATA : HTTP_MSG_TRAILERS;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4773 }
4774
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4775 /* Now we're in HTTP_MSG_DATA or HTTP_MSG_TRAILERS state.
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4776 * We have the first data byte is in msg->sov + msg->sol. We're waiting
4777 * for at least a whole chunk or the whole content length bytes after
4778 * msg->sov + msg->sol.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4779 */
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4780 if (msg->msg_state == HTTP_MSG_TRAILERS)
4781 goto http_end;
4782
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4783 if (http_body_bytes(msg) >= msg->body_len) /* we have enough bytes now */
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4784 goto http_end;
4785
4786 missing_data:
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4787 /* we get here if we need to wait for more data. If the buffer is full,
4788 * we have the maximum we can expect.
4789 */
4790 if (buffer_full(req->buf, global.tune.maxrewrite))
4791 goto http_end;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4792
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4793 if ((req->flags & CF_READ_TIMEOUT) || tick_is_expired(req->analyse_exp, now_ms)) {
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4794 txn->status = 408;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4795 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_408));
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4796
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4797 if (!(s->flags & SF_ERR_MASK))
4798 s->flags |= SF_ERR_CLITO;
4799 if (!(s->flags & SF_FINST_MASK))
4800 s->flags |= SF_FINST_D;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4801 goto return_err_msg;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4802 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4803
4804 /* we get here if we need to wait for more data */
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4805 if (!(req->flags & (CF_SHUTR | CF_READ_ERROR))) {
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4806 /* Not enough data. We'll re-use the http-request
4807 * timeout here. Ideally, we should set the timeout
4808 * relative to the accept() date. We just set the
4809 * request timeout once at the beginning of the
4810 * request.
4811 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4812 channel_dont_connect(req);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4813 if (!tick_isset(req->analyse_exp))
Willy Tarreaucd7afc02009-07-12 10:03:17 +0200[diff] [blame]4814 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4815 return 0;
4816 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4817
4818 http_end:
4819 /* The situation will not evolve, so let's give up on the analysis. */
4820 s->logs.tv_request = now; /* update the request timer to reflect full request */
4821 req->analysers &= ~an_bit;
4822 req->analyse_exp = TICK_ETERNITY;
4823 return 1;
4824
4825 return_bad_req: /* let's centralize all bad requests */
4826 txn->req.msg_state = HTTP_MSG_ERROR;
4827 txn->status = 400;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4828 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_400));
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4829
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4830 if (!(s->flags & SF_ERR_MASK))
4831 s->flags |= SF_ERR_PRXCOND;
4832 if (!(s->flags & SF_FINST_MASK))
4833 s->flags |= SF_FINST_R;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4834
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4835 return_err_msg:
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4836 req->analysers &= AN_FLT_END;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4837 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4838 if (sess->listener->counters)
4839 sess->listener->counters->failed_req++;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4840 return 0;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4841}
4842
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4843/* send a server's name with an outgoing request over an established connection.
4844 * Note: this function is designed to be called once the request has been scheduled
4845 * for being forwarded. This is the reason why it rewinds the buffer before
4846 * proceeding.
4847 */
Willy Tarreau45c0d982012-03-09 12:11:57 +0100[diff] [blame]4848int 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]4849
4850 struct hdr_ctx ctx;
4851
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4852 char *hdr_name = be->server_id_hdr_name;
4853 int hdr_name_len = be->server_id_hdr_len;
Willy Tarreau394db372012-10-12 22:40:39 +0200[diff] [blame]4854 struct channel *chn = txn->req.chn;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4855 char *hdr_val;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4856 unsigned int old_o, old_i;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4857
William Lallemandd9e90662012-01-30 17:27:17 +0100[diff] [blame]4858 ctx.idx = 0;
4859
Willy Tarreau211cdec2014-04-17 20:18:08 +0200[diff] [blame]4860 old_o = http_hdr_rewind(&txn->req);
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4861 if (old_o) {
4862 /* The request was already skipped, let's restore it */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4863 b_rew(chn->buf, old_o);
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4864 txn->req.next += old_o;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4865 txn->req.sov += old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4866 }
4867
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4868 old_i = chn->buf->i;
4869 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]4870 /* remove any existing values from the header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]4871 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4872 }
4873
4874 /* Add the new header requested with the server value */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4875 hdr_val = trash.str;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4876 memcpy(hdr_val, hdr_name, hdr_name_len);
4877 hdr_val += hdr_name_len;
4878 *hdr_val++ = ':';
4879 *hdr_val++ = ' ';
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4880 hdr_val += strlcpy2(hdr_val, srv_name, trash.str + trash.size - hdr_val);
4881 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]4882
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4883 if (old_o) {
4884 /* If this was a forwarded request, we must readjust the amount of
4885 * data to be forwarded in order to take into account the size
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4886 * variations. Note that the current state is >= HTTP_MSG_BODY,
4887 * so we don't have to adjust ->sol.
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4888 */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4889 old_o += chn->buf->i - old_i;
4890 b_adv(chn->buf, old_o);
4891 txn->req.next -= old_o;
4892 txn->req.sov -= old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4893 }
4894
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4895 return 0;
4896}
4897
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4898/* Terminate current transaction and prepare a new one. This is very tricky
4899 * right now but it works.
4900 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4901void http_end_txn_clean_session(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4902{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4903 int prev_status = s->txn->status;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]4904 struct proxy *fe = strm_fe(s);
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4905 struct proxy *be = s->be;
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4906 struct connection *srv_conn;
4907 struct server *srv;
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4908 unsigned int prev_flags = s->txn->flags;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4909
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4910 /* FIXME: We need a more portable way of releasing a backend's and a
4911 * server's connections. We need a safer way to reinitialize buffer
4912 * flags. We also need a more accurate method for computing per-request
4913 * data.
4914 */
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4915 srv_conn = objt_conn(s->si[1].end);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4916
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4917 /* unless we're doing keep-alive, we want to quickly close the connection
4918 * to the server.
4919 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4920 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4921 !si_conn_ready(&s->si[1])) {
4922 s->si[1].flags |= SI_FL_NOLINGER | SI_FL_NOHALF;
4923 si_shutr(&s->si[1]);
4924 si_shutw(&s->si[1]);
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4925 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4926
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4927 if (s->flags & SF_BE_ASSIGNED) {
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4928 be->beconn--;
Willy Tarreau2d5cd472012-03-01 23:34:37 +0100[diff] [blame]4929 if (unlikely(s->srv_conn))
4930 sess_change_server(s, NULL);
4931 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4932
4933 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4934 stream_process_counters(s);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4935
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4936 if (s->txn->status) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4937 int n;
4938
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4939 n = s->txn->status / 100;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4940 if (n < 1 || n > 5)
4941 n = 0;
4942
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4943 if (fe->mode == PR_MODE_HTTP) {
4944 fe->fe_counters.p.http.rsp[n]++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4945 }
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4946 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4947 (be->mode == PR_MODE_HTTP)) {
4948 be->be_counters.p.http.rsp[n]++;
4949 be->be_counters.p.http.cum_req++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4950 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4951 }
4952
4953 /* don't count other requests' data */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4954 s->logs.bytes_in -= s->req.buf->i;
4955 s->logs.bytes_out -= s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4956
4957 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4958 if (!LIST_ISEMPTY(&fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4959 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4960 (!(fe->options & PR_O_NULLNOLOG) || s->req.total)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4961 s->do_log(s);
4962 }
4963
Willy Tarreaud713bcc2014-06-25 15:36:04 +0200[diff] [blame]4964 /* stop tracking content-based counters */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4965 stream_stop_content_counters(s);
4966 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +0200[diff] [blame]4967
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4968 s->logs.accept_date = date; /* user-visible date for logging */
4969 s->logs.tv_accept = now; /* corrected date for internal use */
4970 tv_zero(&s->logs.tv_request);
4971 s->logs.t_queue = -1;
4972 s->logs.t_connect = -1;
4973 s->logs.t_data = -1;
4974 s->logs.t_close = 0;
4975 s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */
4976 s->logs.srv_queue_size = 0; /* we will get this number soon */
4977
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4978 s->logs.bytes_in = s->req.total = s->req.buf->i;
4979 s->logs.bytes_out = s->res.total = s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4980
4981 if (s->pend_pos)
4982 pendconn_free(s->pend_pos);
4983
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4984 if (objt_server(s->target)) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4985 if (s->flags & SF_CURR_SESS) {
4986 s->flags &= ~SF_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4987 objt_server(s->target)->cur_sess--;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4988 }
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4989 if (may_dequeue_tasks(objt_server(s->target), be))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4990 process_srv_queue(objt_server(s->target));
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4991 }
4992
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4993 s->target = NULL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4994
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4995 /* only release our endpoint if we don't intend to reuse the
4996 * connection.
4997 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4998 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4999 !si_conn_ready(&s->si[1])) {
5000 si_release_endpoint(&s->si[1]);
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]5001 srv_conn = NULL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5002 }
5003
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5004 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
5005 s->si[1].err_type = SI_ET_NONE;
5006 s->si[1].conn_retries = 0; /* used for logging too */
5007 s->si[1].exp = TICK_ETERNITY;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5008 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]5009 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);
5010 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]5011 s->flags &= ~(SF_DIRECT|SF_ASSIGNED|SF_ADDR_SET|SF_BE_ASSIGNED|SF_FORCE_PRST|SF_IGNORE_PRST);
5012 s->flags &= ~(SF_CURR_SESS|SF_REDIRECTABLE|SF_SRV_REUSED);
5013 s->flags &= ~(SF_ERR_MASK|SF_FINST_MASK|SF_REDISP);
Willy Tarreau543db622012-11-15 16:41:22 +0100[diff] [blame]5014
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5015 s->txn->meth = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5016 http_reset_txn(s);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5017 s->txn->flags |= TX_NOT_FIRST | TX_WAIT_NEXT_RQ;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]5018
5019 if (prev_status == 401 || prev_status == 407) {
5020 /* In HTTP keep-alive mode, if we receive a 401, we still have
5021 * a chance of being able to send the visitor again to the same
5022 * server over the same connection. This is required by some
5023 * broken protocols such as NTLM, and anyway whenever there is
5024 * an opportunity for sending the challenge to the proper place,
5025 * it's better to do it (at least it helps with debugging).
5026 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5027 s->txn->flags |= TX_PREFER_LAST;
Willy Tarreaubd99d582015-09-02 10:40:43 +0200[diff] [blame]5028 if (srv_conn)
5029 srv_conn->flags |= CO_FL_PRIVATE;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]5030 }
5031
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]5032 /* Never ever allow to reuse a connection from a non-reuse backend */
5033 if (srv_conn && (be->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
5034 srv_conn->flags |= CO_FL_PRIVATE;
5035
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5036 if (fe->options2 & PR_O2_INDEPSTR)
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5037 s->si[1].flags |= SI_FL_INDEP_STR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5038
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5039 if (fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5040 s->req.flags |= CF_NEVER_WAIT;
5041 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200[diff] [blame]5042 }
5043
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5044 /* if the request buffer is not empty, it means we're
5045 * about to process another request, so send pending
5046 * data with MSG_MORE to merge TCP packets when possible.
Willy Tarreau065e8332010-01-08 00:30:20 +0100[diff] [blame]5047 * Just don't do this if the buffer is close to be full,
5048 * because the request will wait for it to flush a little
5049 * bit before proceeding.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5050 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5051 if (s->req.buf->i) {
5052 if (s->res.buf->o &&
5053 !buffer_full(s->res.buf, global.tune.maxrewrite) &&
5054 bi_end(s->res.buf) <= s->res.buf->data + s->res.buf->size - global.tune.maxrewrite)
5055 s->res.flags |= CF_EXPECT_MORE;
Willy Tarreau065e8332010-01-08 00:30:20 +0100[diff] [blame]5056 }
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]5057
Willy Tarreau714ea782015-11-25 20:11:11 +0100[diff] [blame]5058 /* we're removing the analysers, we MUST re-enable events detection.
5059 * We don't enable close on the response channel since it's either
5060 * already closed, or in keep-alive with an idle connection handler.
5061 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5062 channel_auto_read(&s->req);
5063 channel_auto_close(&s->req);
5064 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5065
Willy Tarreau1c59bd52015-11-02 20:20:11 +0100[diff] [blame]5066 /* we're in keep-alive with an idle connection, monitor it if not already done */
5067 if (srv_conn && LIST_ISEMPTY(&srv_conn->list)) {
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]5068 srv = objt_server(srv_conn->target);
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]5069 if (!srv)
5070 si_idle_conn(&s->si[1], NULL);
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]5071 else if (srv_conn->flags & CO_FL_PRIVATE)
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]5072 si_idle_conn(&s->si[1], &srv->priv_conns);
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]5073 else if (prev_flags & TX_NOT_FIRST)
5074 /* note: we check the request, not the connection, but
5075 * this is valid for strategies SAFE and AGGR, and in
5076 * case of ALWS, we don't care anyway.
5077 */
5078 si_idle_conn(&s->si[1], &srv->safe_conns);
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]5079 else
5080 si_idle_conn(&s->si[1], &srv->idle_conns);
Willy Tarreau4320eaa2015-08-05 11:08:30 +0200[diff] [blame]5081 }
Willy Tarreau27375622013-12-17 00:00:28 +0100[diff] [blame]5082
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5083 if (HAS_FILTERS(s)) {
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5084 s->req.analysers &= AN_FLT_END;
5085 s->res.analysers &= AN_FLT_END;
5086 }
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5087 else {
5088 s->req.analysers = strm_li(s) ? strm_li(s)->analysers : 0;
5089 s->res.analysers = 0;
5090 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5091}
5092
5093
5094/* This function updates the request state machine according to the response
5095 * state machine and buffer flags. It returns 1 if it changes anything (flag
5096 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
5097 * it is only used to find when a request/response couple is complete. Both
5098 * this function and its equivalent should loop until both return zero. It
5099 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
5100 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5101int http_sync_req_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5102{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5103 struct channel *chn = &s->req;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5104 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5105 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5106 unsigned int old_state = txn->req.msg_state;
5107
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5108 if (unlikely(txn->req.msg_state < HTTP_MSG_BODY))
5109 return 0;
5110
5111 if (txn->req.msg_state == HTTP_MSG_DONE) {
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]5112 /* No need to read anymore, the request was completely parsed.
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]5113 * We can shut the read side unless we want to abort_on_close,
5114 * or we have a POST request. The issue with POST requests is
5115 * that some browsers still send a CRLF after the request, and
5116 * this CRLF must be read so that it does not remain in the kernel
5117 * buffers, otherwise a close could cause an RST on some systems
5118 * (eg: Linux).
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]5119 * Note that if we're using keep-alive on the client side, we'd
5120 * rather poll now and keep the polling enabled for the whole
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5121 * stream's life than enabling/disabling it between each
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]5122 * response and next request.
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]5123 */
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]5124 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
5125 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
5126 !(s->be->options & PR_O_ABRT_CLOSE) &&
5127 txn->meth != HTTP_METH_POST)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5128 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5129
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]5130 /* if the server closes the connection, we want to immediately react
5131 * and close the socket to save packets and syscalls.
5132 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5133 s->si[1].flags |= SI_FL_NOHALF;
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]5134
Willy Tarreau7f876a12015-11-18 11:59:55 +0100[diff] [blame]5135 /* In any case we've finished parsing the request so we must
5136 * disable Nagle when sending data because 1) we're not going
5137 * to shut this side, and 2) the server is waiting for us to
5138 * send pending data.
5139 */
5140 chn->flags |= CF_NEVER_WAIT;
5141
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5142 if (txn->rsp.msg_state == HTTP_MSG_ERROR)
5143 goto wait_other_side;
5144
5145 if (txn->rsp.msg_state < HTTP_MSG_DONE) {
5146 /* The server has not finished to respond, so we
5147 * don't want to move in order not to upset it.
5148 */
5149 goto wait_other_side;
5150 }
5151
5152 if (txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
5153 /* if any side switches to tunnel mode, the other one does too */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5154 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5155 txn->req.msg_state = HTTP_MSG_TUNNEL;
5156 goto wait_other_side;
5157 }
5158
5159 /* When we get here, it means that both the request and the
5160 * response have finished receiving. Depending on the connection
5161 * mode, we'll have to wait for the last bytes to leave in either
5162 * direction, and sometimes for a close to be effective.
5163 */
5164
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5165 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
5166 /* Server-close mode : queue a connection close to the server */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5167 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW)))
5168 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5169 }
5170 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
5171 /* Option forceclose is set, or either side wants to close,
5172 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5173 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5174 * once both states are CLOSED.
5175 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5176 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
5177 channel_shutr_now(chn);
5178 channel_shutw_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5179 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5180 }
5181 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5182 /* The last possible modes are keep-alive and tunnel. Tunnel mode
5183 * will not have any analyser so it needs to poll for reads.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5184 */
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5185 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN) {
5186 channel_auto_read(chn);
5187 txn->req.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5188 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5189 }
5190
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5191 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5192 /* if we've just closed an output, let's switch */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5193 s->si[1].flags |= SI_FL_NOLINGER; /* we want to close ASAP */
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5194
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5195 if (!channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5196 txn->req.msg_state = HTTP_MSG_CLOSING;
5197 goto http_msg_closing;
5198 }
5199 else {
5200 txn->req.msg_state = HTTP_MSG_CLOSED;
5201 goto http_msg_closed;
5202 }
5203 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5204 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5205 }
5206
5207 if (txn->req.msg_state == HTTP_MSG_CLOSING) {
5208 http_msg_closing:
5209 /* nothing else to forward, just waiting for the output buffer
5210 * to be empty and for the shutw_now to take effect.
5211 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5212 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5213 txn->req.msg_state = HTTP_MSG_CLOSED;
5214 goto http_msg_closed;
5215 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5216 else if (chn->flags & CF_SHUTW) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5217 txn->req.msg_state = HTTP_MSG_ERROR;
5218 goto wait_other_side;
5219 }
5220 }
5221
5222 if (txn->req.msg_state == HTTP_MSG_CLOSED) {
5223 http_msg_closed:
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]5224 /* see above in MSG_DONE why we only do this in these states */
5225 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
5226 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
5227 !(s->be->options & PR_O_ABRT_CLOSE))
Willy Tarreau2e7a1652013-12-15 15:32:10 +0100[diff] [blame]5228 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5229 goto wait_other_side;
5230 }
5231
5232 wait_other_side:
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5233 return txn->req.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5234}
5235
5236
5237/* This function updates the response state machine according to the request
5238 * state machine and buffer flags. It returns 1 if it changes anything (flag
5239 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
5240 * it is only used to find when a request/response couple is complete. Both
5241 * this function and its equivalent should loop until both return zero. It
5242 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
5243 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5244int http_sync_res_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5245{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5246 struct channel *chn = &s->res;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5247 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5248 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5249 unsigned int old_state = txn->rsp.msg_state;
5250
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5251 if (unlikely(txn->rsp.msg_state < HTTP_MSG_BODY))
5252 return 0;
5253
5254 if (txn->rsp.msg_state == HTTP_MSG_DONE) {
5255 /* In theory, we don't need to read anymore, but we must
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]5256 * still monitor the server connection for a possible close
5257 * while the request is being uploaded, so we don't disable
5258 * reading.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5259 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5260 /* channel_dont_read(chn); */
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5261
5262 if (txn->req.msg_state == HTTP_MSG_ERROR)
5263 goto wait_other_side;
5264
5265 if (txn->req.msg_state < HTTP_MSG_DONE) {
5266 /* The client seems to still be sending data, probably
5267 * because we got an error response during an upload.
5268 * We have the choice of either breaking the connection
5269 * or letting it pass through. Let's do the later.
5270 */
5271 goto wait_other_side;
5272 }
5273
5274 if (txn->req.msg_state == HTTP_MSG_TUNNEL) {
5275 /* if any side switches to tunnel mode, the other one does too */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5276 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5277 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]5278 chn->flags |= CF_NEVER_WAIT;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5279 goto wait_other_side;
5280 }
5281
5282 /* When we get here, it means that both the request and the
5283 * response have finished receiving. Depending on the connection
5284 * mode, we'll have to wait for the last bytes to leave in either
5285 * direction, and sometimes for a close to be effective.
5286 */
5287
5288 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
5289 /* Server-close mode : shut read and wait for the request
5290 * side to close its output buffer. The caller will detect
5291 * when we're in DONE and the other is in CLOSED and will
5292 * catch that for the final cleanup.
5293 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5294 if (!(chn->flags & (CF_SHUTR|CF_SHUTR_NOW)))
5295 channel_shutr_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5296 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5297 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
5298 /* Option forceclose is set, or either side wants to close,
5299 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5300 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5301 * once both states are CLOSED.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5302 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5303 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
5304 channel_shutr_now(chn);
5305 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5306 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5307 }
5308 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5309 /* The last possible modes are keep-alive and tunnel. Tunnel will
5310 * need to forward remaining data. Keep-alive will need to monitor
5311 * for connection closing.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5312 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5313 channel_auto_read(chn);
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]5314 chn->flags |= CF_NEVER_WAIT;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5315 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN)
5316 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5317 }
5318
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5319 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5320 /* if we've just closed an output, let's switch */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5321 if (!channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5322 txn->rsp.msg_state = HTTP_MSG_CLOSING;
5323 goto http_msg_closing;
5324 }
5325 else {
5326 txn->rsp.msg_state = HTTP_MSG_CLOSED;
5327 goto http_msg_closed;
5328 }
5329 }
5330 goto wait_other_side;
5331 }
5332
5333 if (txn->rsp.msg_state == HTTP_MSG_CLOSING) {
5334 http_msg_closing:
5335 /* nothing else to forward, just waiting for the output buffer
5336 * to be empty and for the shutw_now to take effect.
5337 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5338 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5339 txn->rsp.msg_state = HTTP_MSG_CLOSED;
5340 goto http_msg_closed;
5341 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5342 else if (chn->flags & CF_SHUTW) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5343 txn->rsp.msg_state = HTTP_MSG_ERROR;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5344 s->be->be_counters.cli_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5345 if (objt_server(s->target))
5346 objt_server(s->target)->counters.cli_aborts++;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5347 goto wait_other_side;
5348 }
5349 }
5350
5351 if (txn->rsp.msg_state == HTTP_MSG_CLOSED) {
5352 http_msg_closed:
5353 /* drop any pending data */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5354 channel_truncate(chn);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5355 channel_auto_close(chn);
5356 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5357 goto wait_other_side;
5358 }
5359
5360 wait_other_side:
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]5361 /* We force the response to leave immediately if we're waiting for the
5362 * other side, since there is no pending shutdown to push it out.
5363 */
5364 if (!channel_is_empty(chn))
5365 chn->flags |= CF_SEND_DONTWAIT;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5366 return txn->rsp.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5367}
5368
5369
5370/* Resync the request and response state machines. Return 1 if either state
5371 * changes.
5372 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5373int http_resync_states(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5374{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5375 struct http_txn *txn = s->txn;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5376 int old_req_state = txn->req.msg_state;
5377 int old_res_state = txn->rsp.msg_state;
5378
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5379 http_sync_req_state(s);
5380 while (1) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5381 if (!http_sync_res_state(s))
5382 break;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5383 if (!http_sync_req_state(s))
5384 break;
5385 }
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]5386
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5387 /* OK, both state machines agree on a compatible state.
5388 * There are a few cases we're interested in :
5389 * - HTTP_MSG_TUNNEL on either means we have to disable both analysers
5390 * - HTTP_MSG_CLOSED on both sides means we've reached the end in both
5391 * directions, so let's simply disable both analysers.
5392 * - HTTP_MSG_CLOSED on the response only means we must abort the
5393 * request.
5394 * - HTTP_MSG_CLOSED on the request and HTTP_MSG_DONE on the response
5395 * with server-close mode means we've completed one request and we
5396 * must re-initialize the server connection.
5397 */
5398
5399 if (txn->req.msg_state == HTTP_MSG_TUNNEL ||
5400 txn->rsp.msg_state == HTTP_MSG_TUNNEL ||
5401 (txn->req.msg_state == HTTP_MSG_CLOSED &&
5402 txn->rsp.msg_state == HTTP_MSG_CLOSED)) {
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5403 s->req.analysers &= AN_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5404 channel_auto_close(&s->req);
5405 channel_auto_read(&s->req);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5406 s->res.analysers &= AN_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5407 channel_auto_close(&s->res);
5408 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5409 }
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]5410 else if ((txn->req.msg_state >= HTTP_MSG_DONE &&
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5411 (txn->rsp.msg_state == HTTP_MSG_CLOSED || (s->res.flags & CF_SHUTW))) ||
Willy Tarreau2fa144c2010-01-04 23:13:26 +0100[diff] [blame]5412 txn->rsp.msg_state == HTTP_MSG_ERROR ||
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]5413 txn->req.msg_state == HTTP_MSG_ERROR) {
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5414 s->res.analysers &= AN_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5415 channel_auto_close(&s->res);
5416 channel_auto_read(&s->res);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5417 s->req.analysers &= AN_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5418 channel_abort(&s->req);
5419 channel_auto_close(&s->req);
5420 channel_auto_read(&s->req);
5421 channel_truncate(&s->req);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5422 }
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5423 else if ((txn->req.msg_state == HTTP_MSG_DONE ||
5424 txn->req.msg_state == HTTP_MSG_CLOSED) &&
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5425 txn->rsp.msg_state == HTTP_MSG_DONE &&
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5426 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
5427 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
5428 /* server-close/keep-alive: terminate this transaction,
5429 * possibly killing the server connection and reinitialize
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]5430 * a fresh-new transaction, but only once we're sure there's
5431 * enough room in the request and response buffer to process
5432 * another request. The request buffer must not hold any
5433 * pending output data and the request buffer must not have
5434 * output data occupying the reserve.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5435 */
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]5436 if (s->req.buf->o)
5437 s->req.flags |= CF_WAKE_WRITE;
5438 else if (channel_congested(&s->res))
5439 s->res.flags |= CF_WAKE_WRITE;
5440 else
5441 http_end_txn_clean_session(s);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5442 }
5443
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5444 return txn->req.msg_state != old_req_state ||
5445 txn->rsp.msg_state != old_res_state;
5446}
5447
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5448/* This function is an analyser which forwards request body (including chunk
5449 * sizes if any). It is called as soon as we must forward, even if we forward
5450 * zero byte. The only situation where it must not be called is when we're in
5451 * tunnel mode and we want to forward till the close. It's used both to forward
5452 * remaining data and to resync after end of body. It expects the msg_state to
5453 * 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]5454 * 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]5455 * When in MSG_DATA or MSG_TRAILERS, it will automatically forward chunk_len
Willy Tarreauc24715e2014-04-17 15:21:20 +0200[diff] [blame]5456 * bytes of pending data + the headers if not already done.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5457 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5458int http_request_forward_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5459{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5460 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5461 struct http_txn *txn = s->txn;
5462 struct http_msg *msg = &s->txn->req;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5463 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5464
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5465 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
5466 return 0;
5467
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5468 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]5469 ((req->flags & CF_SHUTW) && (req->to_forward || req->buf->o))) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]5470 /* Output closed while we were sending data. We must abort and
5471 * wake the other side up.
5472 */
5473 msg->msg_state = HTTP_MSG_ERROR;
5474 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]5475 return 1;
5476 }
5477
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5478 /* Note that we don't have to send 100-continue back because we don't
5479 * need the data to complete our job, and it's up to the server to
5480 * decide whether to return 100, 417 or anything else in return of
5481 * an "Expect: 100-continue" header.
5482 */
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5483 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5484 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
5485 ? HTTP_MSG_CHUNK_SIZE
5486 : HTTP_MSG_DATA);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5487
5488 /* TODO/filters: when http-buffer-request option is set or if a
5489 * rule on url_param exists, the first chunk size could be
5490 * already parsed. In that case, msg->next is after the chunk
5491 * size (including the CRLF after the size). So this case should
5492 * be handled to */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5493 }
5494
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]5495 /* Some post-connect processing might want us to refrain from starting to
5496 * forward data. Currently, the only reason for this is "balance url_param"
5497 * whichs need to parse/process the request after we've enabled forwarding.
5498 */
5499 if (unlikely(msg->flags & HTTP_MSGF_WAIT_CONN)) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5500 if (!(s->res.flags & CF_READ_ATTACHED)) {
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]5501 channel_auto_connect(req);
Willy Tarreau644c1012014-04-30 18:11:11 +0200[diff] [blame]5502 req->flags |= CF_WAKE_CONNECT;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5503 goto missing_data_or_waiting;
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]5504 }
5505 msg->flags &= ~HTTP_MSGF_WAIT_CONN;
5506 }
5507
Willy Tarreau80a92c02014-03-12 10:41:13 +0100[diff] [blame]5508 /* in most states, we should abort in case of early close */
5509 channel_auto_close(req);
5510
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]5511 if (req->to_forward) {
5512 /* We can't process the buffer's contents yet */
5513 req->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5514 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]5515 }
5516
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5517 if (msg->msg_state < HTTP_MSG_DONE) {
5518 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
5519 ? http_msg_forward_chunked_body(s, msg)
5520 : http_msg_forward_body(s, msg));
5521 if (!ret)
5522 goto missing_data_or_waiting;
5523 if (ret < 0)
5524 goto return_bad_req;
5525 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5526
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5527 /* other states, DONE...TUNNEL */
5528 /* we don't want to forward closes on DONE except in tunnel mode. */
5529 if ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
5530 channel_dont_close(req);
Willy Tarreau5c54c712010-07-17 08:02:58 +0200[diff] [blame]5531
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5532 ret = msg->msg_state;
5533 if (http_resync_states(s)) {
5534 /* some state changes occurred, maybe the analyser
5535 * was disabled too. */
5536 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
5537 if (req->flags & CF_SHUTW) {
5538 /* request errors are most likely due to the
5539 * server aborting the transfer. */
5540 goto aborted_xfer;
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]5541 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5542 if (msg->err_pos >= 0)
5543 http_capture_bad_message(&sess->fe->invalid_req, s, msg, ret, s->be);
5544 goto return_bad_req;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5545 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5546 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5547 }
5548
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5549 /* If "option abortonclose" is set on the backend, we want to monitor
5550 * the client's connection and forward any shutdown notification to the
5551 * server, which will decide whether to close or to go on processing the
5552 * request. We only do that in tunnel mode, and not in other modes since
5553 * it can be abused to exhaust source ports. */
5554 if (s->be->options & PR_O_ABRT_CLOSE) {
5555 channel_auto_read(req);
5556 if ((req->flags & (CF_SHUTR|CF_READ_NULL)) &&
5557 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN))
5558 s->si[1].flags |= SI_FL_NOLINGER;
5559 channel_auto_close(req);
5560 }
5561 else if (s->txn->meth == HTTP_METH_POST) {
5562 /* POST requests may require to read extra CRLF sent by broken
5563 * browsers and which could cause an RST to be sent upon close
5564 * on some systems (eg: Linux). */
5565 channel_auto_read(req);
5566 }
5567 return 0;
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]5568
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5569 missing_data_or_waiting:
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5570 /* stop waiting for data if the input is closed before the end */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5571 if (req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5572 if (!(s->flags & SF_ERR_MASK))
5573 s->flags |= SF_ERR_CLICL;
5574 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5575 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5576 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5577 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5578 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5579 }
5580
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5581 sess->fe->fe_counters.cli_aborts++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5582 s->be->be_counters.cli_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5583 if (objt_server(s->target))
5584 objt_server(s->target)->counters.cli_aborts++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5585
5586 goto return_bad_req_stats_ok;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]5587 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5588
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5589 /* waiting for the last bits to leave the buffer */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5590 if (req->flags & CF_SHUTW)
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5591 goto aborted_xfer;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5592
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]5593 /* When TE: chunked is used, we need to get there again to parse remaining
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5594 * 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]5595 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5596 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5597 channel_dont_close(req);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]5598
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5599 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5600 * 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]5601 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]5602 * modes are already handled by the stream sock layer. We must not do
5603 * this in content-length mode because it could present the MSG_MORE
5604 * flag with the last block of forwarded data, which would cause an
5605 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5606 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5607 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5608 req->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5609
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5610 return 0;
5611
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5612 return_bad_req: /* let's centralize all bad requests */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5613 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5614 if (sess->listener->counters)
5615 sess->listener->counters->failed_req++;
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]5616
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5617 return_bad_req_stats_ok:
5618 txn->req.msg_state = HTTP_MSG_ERROR;
5619 if (txn->status) {
5620 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5621 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5622 } else {
5623 txn->status = 400;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5624 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_400));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5625 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5626 req->analysers &= AN_FLT_END;
5627 s->res.analysers &= AN_FLT_END; /* we're in data phase, we want to abort both directions */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5628
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5629 if (!(s->flags & SF_ERR_MASK))
5630 s->flags |= SF_ERR_PRXCOND;
5631 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5632 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5633 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5634 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5635 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5636 }
5637 return 0;
5638
5639 aborted_xfer:
5640 txn->req.msg_state = HTTP_MSG_ERROR;
5641 if (txn->status) {
5642 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5643 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5644 } else {
5645 txn->status = 502;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5646 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_502));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5647 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5648 req->analysers &= AN_FLT_END;
5649 s->res.analysers &= AN_FLT_END; /* we're in data phase, we want to abort both directions */
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5650
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5651 sess->fe->fe_counters.srv_aborts++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5652 s->be->be_counters.srv_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5653 if (objt_server(s->target))
5654 objt_server(s->target)->counters.srv_aborts++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5655
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5656 if (!(s->flags & SF_ERR_MASK))
5657 s->flags |= SF_ERR_SRVCL;
5658 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5659 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5660 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5661 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5662 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5663 }
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5664 return 0;
5665}
5666
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5667/* This stream analyser waits for a complete HTTP response. It returns 1 if the
5668 * processing can continue on next analysers, or zero if it either needs more
5669 * data or wants to immediately abort the response (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5670 * 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]5671 * when it has nothing left to do, and may remove any analyser when it wants to
5672 * abort.
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5673 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5674int http_wait_for_response(struct stream *s, struct channel *rep, int an_bit)
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5675{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5676 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5677 struct http_txn *txn = s->txn;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5678 struct http_msg *msg = &txn->rsp;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5679 struct hdr_ctx ctx;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5680 int use_close_only;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5681 int cur_idx;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5682 int n;
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]5683
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5684 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]5685 now_ms, __FUNCTION__,
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5686 s,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5687 rep,
5688 rep->rex, rep->wex,
5689 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5690 rep->buf->i,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5691 rep->analysers);
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200[diff] [blame]5692
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5693 /*
5694 * Now parse the partial (or complete) lines.
5695 * We will check the response syntax, and also join multi-line
5696 * headers. An index of all the lines will be elaborated while
5697 * parsing.
5698 *
5699 * For the parsing, we use a 28 states FSM.
5700 *
5701 * Here is the information we currently have :
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5702 * rep->buf->p = beginning of response
5703 * rep->buf->p + msg->eoh = end of processed headers / start of current one
5704 * rep->buf->p + rep->buf->i = end of input data
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]5705 * msg->eol = end of current header or line (LF or CRLF)
5706 * msg->next = first non-visited byte
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5707 */
5708
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5709 next_one:
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5710 /* There's a protected area at the end of the buffer for rewriting
5711 * purposes. We don't want to start to parse the request if the
5712 * protected area is affected, because we may have to move processed
5713 * data later, which is much more complicated.
5714 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5715 if (buffer_not_empty(rep->buf) && msg->msg_state < HTTP_MSG_ERROR) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]5716 if (unlikely(!channel_is_rewritable(rep))) {
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5717 /* some data has still not left the buffer, wake us once that's done */
5718 if (rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
5719 goto abort_response;
5720 channel_dont_close(rep);
5721 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]5722 rep->flags |= CF_WAKE_WRITE;
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5723 return 0;
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5724 }
5725
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5726 if (unlikely(bi_end(rep->buf) < b_ptr(rep->buf, msg->next) ||
5727 bi_end(rep->buf) > rep->buf->data + rep->buf->size - global.tune.maxrewrite))
5728 buffer_slow_realign(rep->buf);
5729
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5730 if (likely(msg->next < rep->buf->i))
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]5731 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5732 }
5733
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5734 /* 1: we might have to print this header in debug mode */
5735 if (unlikely((global.mode & MODE_DEBUG) &&
5736 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]5737 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5738 char *eol, *sol;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5739
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5740 sol = rep->buf->p;
5741 eol = sol + (msg->sl.st.l ? msg->sl.st.l : rep->buf->i);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5742 debug_hdr("srvrep", s, sol, eol);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5743
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5744 sol += hdr_idx_first_pos(&txn->hdr_idx);
5745 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5746
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5747 while (cur_idx) {
5748 eol = sol + txn->hdr_idx.v[cur_idx].len;
5749 debug_hdr("srvhdr", s, sol, eol);
5750 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
5751 cur_idx = txn->hdr_idx.v[cur_idx].next;
5752 }
5753 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5754
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5755 /*
5756 * Now we quickly check if we have found a full valid response.
5757 * If not so, we check the FD and buffer states before leaving.
5758 * A full response is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5759 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5760 * responses are checked first.
5761 *
5762 * Depending on whether the client is still there or not, we
5763 * may send an error response back or not. Note that normally
5764 * we should only check for HTTP status there, and check I/O
5765 * errors somewhere else.
5766 */
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5767
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5768 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5769 /* Invalid response */
5770 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
5771 /* we detected a parsing error. We want to archive this response
5772 * in the dedicated proxy area for later troubleshooting.
5773 */
5774 hdr_response_bad:
5775 if (msg->msg_state == HTTP_MSG_ERROR || msg->err_pos >= 0)
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5776 http_capture_bad_message(&s->be->invalid_rep, s, msg, msg->msg_state, sess->fe);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5777
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5778 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5779 if (objt_server(s->target)) {
5780 objt_server(s->target)->counters.failed_resp++;
5781 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5782 }
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]5783 abort_response:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5784 channel_auto_close(rep);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5785 rep->analysers &= AN_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5786 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5787 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5788 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5789 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_502));
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5790
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5791 if (!(s->flags & SF_ERR_MASK))
5792 s->flags |= SF_ERR_PRXCOND;
5793 if (!(s->flags & SF_FINST_MASK))
5794 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5795
5796 return 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5797 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5798
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5799 /* too large response does not fit in buffer. */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5800 else if (buffer_full(rep->buf, global.tune.maxrewrite)) {
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]5801 if (msg->err_pos < 0)
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5802 msg->err_pos = rep->buf->i;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5803 goto hdr_response_bad;
5804 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5805
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5806 /* read error */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5807 else if (rep->flags & CF_READ_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5808 if (msg->err_pos >= 0)
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5809 http_capture_bad_message(&s->be->invalid_rep, s, msg, msg->msg_state, sess->fe);
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]5810 else if (txn->flags & TX_NOT_FIRST)
5811 goto abort_keep_alive;
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5812
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5813 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5814 if (objt_server(s->target)) {
5815 objt_server(s->target)->counters.failed_resp++;
5816 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_ERROR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5817 }
Willy Tarreau461f6622008-08-15 23:43:19 +0200[diff] [blame]5818
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5819 channel_auto_close(rep);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5820 rep->analysers &= AN_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5821 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5822 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5823 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5824 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_502));
Willy Tarreau816b9792009-09-15 21:25:21 +0200[diff] [blame]5825
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5826 if (!(s->flags & SF_ERR_MASK))
5827 s->flags |= SF_ERR_SRVCL;
5828 if (!(s->flags & SF_FINST_MASK))
5829 s->flags |= SF_FINST_H;
Willy Tarreaucebf57e2008-08-15 18:16:37 +0200[diff] [blame]5830 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5831 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5832
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +0200[diff] [blame]5833 /* read timeout : return a 504 to the client. */
5834 else if (rep->flags & CF_READ_TIMEOUT) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5835 if (msg->err_pos >= 0)
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5836 http_capture_bad_message(&s->be->invalid_rep, s, msg, msg->msg_state, sess->fe);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5837
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5838 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5839 if (objt_server(s->target)) {
5840 objt_server(s->target)->counters.failed_resp++;
5841 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_TIMEOUT);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5842 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5843
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5844 channel_auto_close(rep);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5845 rep->analysers &= AN_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5846 txn->status = 504;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5847 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5848 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5849 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_504));
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5850
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5851 if (!(s->flags & SF_ERR_MASK))
5852 s->flags |= SF_ERR_SRVTO;
5853 if (!(s->flags & SF_FINST_MASK))
5854 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5855 return 0;
5856 }
Willy Tarreaua7c52762008-08-16 18:40:18 +0200[diff] [blame]5857
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5858 /* client abort with an abortonclose */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5859 else if ((rep->flags & CF_SHUTR) && ((s->req.flags & (CF_SHUTR|CF_SHUTW)) == (CF_SHUTR|CF_SHUTW))) {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5860 sess->fe->fe_counters.cli_aborts++;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5861 s->be->be_counters.cli_aborts++;
5862 if (objt_server(s->target))
5863 objt_server(s->target)->counters.cli_aborts++;
5864
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5865 rep->analysers &= AN_FLT_END;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5866 channel_auto_close(rep);
5867
5868 txn->status = 400;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5869 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5870 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_400));
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5871
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5872 if (!(s->flags & SF_ERR_MASK))
5873 s->flags |= SF_ERR_CLICL;
5874 if (!(s->flags & SF_FINST_MASK))
5875 s->flags |= SF_FINST_H;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5876
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5877 /* process_stream() will take care of the error */
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5878 return 0;
5879 }
5880
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5881 /* close from server, capture the response if the server has started to respond */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5882 else if (rep->flags & CF_SHUTR) {
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5883 if (msg->msg_state >= HTTP_MSG_RPVER || msg->err_pos >= 0)
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5884 http_capture_bad_message(&s->be->invalid_rep, s, msg, msg->msg_state, sess->fe);
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]5885 else if (txn->flags & TX_NOT_FIRST)
5886 goto abort_keep_alive;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5887
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5888 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5889 if (objt_server(s->target)) {
5890 objt_server(s->target)->counters.failed_resp++;
5891 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_BROKEN_PIPE);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5892 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5893
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5894 channel_auto_close(rep);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5895 rep->analysers &= AN_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5896 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5897 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5898 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5899 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_502));
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5900
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5901 if (!(s->flags & SF_ERR_MASK))
5902 s->flags |= SF_ERR_SRVCL;
5903 if (!(s->flags & SF_FINST_MASK))
5904 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5905 return 0;
5906 }
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5907
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5908 /* write error to client (we don't send any message then) */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5909 else if (rep->flags & CF_WRITE_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5910 if (msg->err_pos >= 0)
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5911 http_capture_bad_message(&s->be->invalid_rep, s, msg, msg->msg_state, sess->fe);
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]5912 else if (txn->flags & TX_NOT_FIRST)
5913 goto abort_keep_alive;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5914
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5915 s->be->be_counters.failed_resp++;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5916 rep->analysers &= AN_FLT_END;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5917 channel_auto_close(rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5918
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5919 if (!(s->flags & SF_ERR_MASK))
5920 s->flags |= SF_ERR_CLICL;
5921 if (!(s->flags & SF_FINST_MASK))
5922 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5923
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5924 /* process_stream() will take care of the error */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5925 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5926 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5927
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5928 channel_dont_close(rep);
Willy Tarreau3f3997e2013-12-15 15:21:32 +0100[diff] [blame]5929 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5930 return 0;
5931 }
5932
5933 /* More interesting part now : we know that we have a complete
5934 * response which at least looks like HTTP. We have an indicator
5935 * of each header's length, so we can parse them quickly.
5936 */
5937
5938 if (unlikely(msg->err_pos >= 0))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5939 http_capture_bad_message(&s->be->invalid_rep, s, msg, msg->msg_state, sess->fe);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5940
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5941 /*
5942 * 1: get the status code
5943 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5944 n = rep->buf->p[msg->sl.st.c] - '0';
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5945 if (n < 1 || n > 5)
5946 n = 0;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5947 /* when the client triggers a 4xx from the server, it's most often due
5948 * to a missing object or permission. These events should be tracked
5949 * because if they happen often, it may indicate a brute force or a
5950 * vulnerability scan.
5951 */
5952 if (n == 4)
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5953 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5954
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5955 if (objt_server(s->target))
5956 objt_server(s->target)->counters.p.http.rsp[n]++;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5957
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]5958 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
5959 * exactly one digit "." one digit. This check may be disabled using
5960 * option accept-invalid-http-response.
5961 */
5962 if (!(s->be->options2 & PR_O2_RSPBUG_OK)) {
5963 if (msg->sl.st.v_l != 8) {
5964 msg->err_pos = 0;
5965 goto hdr_response_bad;
5966 }
5967
5968 if (rep->buf->p[4] != '/' ||
5969 !isdigit((unsigned char)rep->buf->p[5]) ||
5970 rep->buf->p[6] != '.' ||
5971 !isdigit((unsigned char)rep->buf->p[7])) {
5972 msg->err_pos = 4;
5973 goto hdr_response_bad;
5974 }
5975 }
5976
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5977 /* check if the response is HTTP/1.1 or above */
5978 if ((msg->sl.st.v_l == 8) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5979 ((rep->buf->p[5] > '1') ||
5980 ((rep->buf->p[5] == '1') && (rep->buf->p[7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5981 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5982
5983 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]5984 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]5985
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5986 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5987 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5988
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5989 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]5990
Willy Tarreau39650402010-03-15 19:44:39 +0100[diff] [blame]5991 /* Adjust server's health based on status code. Note: status codes 501
5992 * and 505 are triggered on demand by client request, so we must not
5993 * count them as server failures.
5994 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5995 if (objt_server(s->target)) {
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5996 if (txn->status >= 100 && (txn->status < 500 || txn->status == 501 || txn->status == 505))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5997 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_OK);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5998 else
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5999 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_STS);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]6000 }
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]6001
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6002 /*
6003 * 2: check for cacheability.
6004 */
6005
6006 switch (txn->status) {
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]6007 case 100:
6008 /*
6009 * We may be facing a 100-continue response, in which case this
6010 * is not the right response, and we're waiting for the next one.
6011 * Let's allow this response to go to the client and wait for the
6012 * next one.
6013 */
6014 hdr_idx_init(&txn->hdr_idx);
6015 msg->next -= channel_forward(rep, msg->next);
6016 msg->msg_state = HTTP_MSG_RPBEFORE;
6017 txn->status = 0;
6018 s->logs.t_data = -1; /* was not a response yet */
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]6019 FLT_STRM_CB(s, flt_http_reset(s, msg));
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]6020 goto next_one;
6021
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6022 case 200:
6023 case 203:
6024 case 206:
6025 case 300:
6026 case 301:
6027 case 410:
6028 /* RFC2616 @13.4:
6029 * "A response received with a status code of
6030 * 200, 203, 206, 300, 301 or 410 MAY be stored
6031 * by a cache (...) unless a cache-control
6032 * directive prohibits caching."
6033 *
6034 * RFC2616 @9.5: POST method :
6035 * "Responses to this method are not cacheable,
6036 * unless the response includes appropriate
6037 * Cache-Control or Expires header fields."
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6038 */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6039 if (likely(txn->meth != HTTP_METH_POST) &&
Willy Tarreau67402132012-05-31 20:40:20 +0200[diff] [blame]6040 ((s->be->options & PR_O_CHK_CACHE) || (s->be->ck_opts & PR_CK_NOC)))
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6041 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
6042 break;
6043 default:
6044 break;
6045 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6046
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6047 /*
6048 * 3: we may need to capture headers
6049 */
6050 s->logs.logwait &= ~LW_RESP;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]6051 if (unlikely((s->logs.logwait & LW_RSPHDR) && s->res_cap))
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6052 capture_headers(rep->buf->p, &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]6053 s->res_cap, sess->fe->rsp_cap);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6054
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6055 /* 4: determine the transfer-length according to RFC2616 #4.4, updated
6056 * by RFC7230#3.3.3 :
6057 *
6058 * The length of a message body is determined by one of the following
6059 * (in order of precedence):
6060 *
6061 * 1. Any response to a HEAD request and any response with a 1xx
6062 * (Informational), 204 (No Content), or 304 (Not Modified) status
6063 * code is always terminated by the first empty line after the
6064 * header fields, regardless of the header fields present in the
6065 * message, and thus cannot contain a message body.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6066 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6067 * 2. Any 2xx (Successful) response to a CONNECT request implies that
6068 * the connection will become a tunnel immediately after the empty
6069 * line that concludes the header fields. A client MUST ignore any
6070 * Content-Length or Transfer-Encoding header fields received in
6071 * such a message.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6072 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6073 * 3. If a Transfer-Encoding header field is present and the chunked
6074 * transfer coding (Section 4.1) is the final encoding, the message
6075 * body length is determined by reading and decoding the chunked
6076 * data until the transfer coding indicates the data is complete.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6077 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6078 * If a Transfer-Encoding header field is present in a response and
6079 * the chunked transfer coding is not the final encoding, the
6080 * message body length is determined by reading the connection until
6081 * it is closed by the server. If a Transfer-Encoding header field
6082 * is present in a request and the chunked transfer coding is not
6083 * the final encoding, the message body length cannot be determined
6084 * reliably; the server MUST respond with the 400 (Bad Request)
6085 * status code and then close the connection.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6086 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6087 * If a message is received with both a Transfer-Encoding and a
6088 * Content-Length header field, the Transfer-Encoding overrides the
6089 * Content-Length. Such a message might indicate an attempt to
6090 * perform request smuggling (Section 9.5) or response splitting
6091 * (Section 9.4) and ought to be handled as an error. A sender MUST
6092 * remove the received Content-Length field prior to forwarding such
6093 * a message downstream.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6094 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6095 * 4. If a message is received without Transfer-Encoding and with
6096 * either multiple Content-Length header fields having differing
6097 * field-values or a single Content-Length header field having an
6098 * invalid value, then the message framing is invalid and the
6099 * recipient MUST treat it as an unrecoverable error. If this is a
6100 * request message, the server MUST respond with a 400 (Bad Request)
6101 * status code and then close the connection. If this is a response
6102 * message received by a proxy, the proxy MUST close the connection
6103 * to the server, discard the received response, and send a 502 (Bad
6104 * Gateway) response to the client. If this is a response message
6105 * received by a user agent, the user agent MUST close the
6106 * connection to the server and discard the received response.
6107 *
6108 * 5. If a valid Content-Length header field is present without
6109 * Transfer-Encoding, its decimal value defines the expected message
6110 * body length in octets. If the sender closes the connection or
6111 * the recipient times out before the indicated number of octets are
6112 * received, the recipient MUST consider the message to be
6113 * incomplete and close the connection.
6114 *
6115 * 6. If this is a request message and none of the above are true, then
6116 * the message body length is zero (no message body is present).
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6117 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6118 * 7. Otherwise, this is a response message without a declared message
6119 * body length, so the message body length is determined by the
6120 * number of octets received prior to the server closing the
6121 * connection.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6122 */
6123
6124 /* Skip parsing if no content length is possible. The response flags
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]6125 * remain 0 as well as the chunk_len, which may or may not mirror
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6126 * the real header value, and we note that we know the response's length.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6127 * FIXME: should we parse anyway and return an error on chunked encoding ?
6128 */
6129 if (txn->meth == HTTP_METH_HEAD ||
6130 (txn->status >= 100 && txn->status < 200) ||
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6131 txn->status == 204 || txn->status == 304) {
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6132 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6133 goto skip_content_length;
6134 }
6135
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6136 use_close_only = 0;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6137 ctx.idx = 0;
Willy Tarreau4979d5c2015-05-01 10:06:30 +0200[diff] [blame]6138 while (http_find_header2("Transfer-Encoding", 17, rep->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6139 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6140 msg->flags |= (HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
6141 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6142 /* bad transfer-encoding (chunked followed by something else) */
6143 use_close_only = 1;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6144 msg->flags &= ~(HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6145 break;
6146 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6147 }
6148
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]6149 /* Chunked responses must have their content-length removed */
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6150 ctx.idx = 0;
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]6151 if (use_close_only || (msg->flags & HTTP_MSGF_TE_CHNK)) {
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]6152 while (http_find_header2("Content-Length", 14, rep->buf->p, &txn->hdr_idx, &ctx))
6153 http_remove_header2(msg, &txn->hdr_idx, &ctx);
6154 }
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]6155 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]6156 signed long long cl;
6157
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6158 if (!ctx.vlen) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6159 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6160 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6161 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6162
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6163 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6164 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6165 goto hdr_response_bad; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6166 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6167
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6168 if (cl < 0) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6169 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6170 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6171 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6172
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6173 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6174 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6175 goto hdr_response_bad; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6176 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6177
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6178 msg->flags |= HTTP_MSGF_CNT_LEN | HTTP_MSGF_XFER_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]6179 msg->body_len = msg->chunk_len = cl;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6180 }
6181
6182skip_content_length:
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6183 /* Now we have to check if we need to modify the Connection header.
6184 * This is more difficult on the response than it is on the request,
6185 * because we can have two different HTTP versions and we don't know
6186 * how the client will interprete a response. For instance, let's say
6187 * that the client sends a keep-alive request in HTTP/1.0 and gets an
6188 * HTTP/1.1 response without any header. Maybe it will bound itself to
6189 * HTTP/1.0 because it only knows about it, and will consider the lack
6190 * of header as a close, or maybe it knows HTTP/1.1 and can consider
6191 * the lack of header as a keep-alive. Thus we will use two flags
6192 * indicating how a request MAY be understood by the client. In case
6193 * of multiple possibilities, we'll fix the header to be explicit. If
6194 * ambiguous cases such as both close and keepalive are seen, then we
6195 * will fall back to explicit close. Note that we won't take risks with
6196 * HTTP/1.0 clients which may not necessarily understand keep-alive.
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6197 * See doc/internals/connection-header.txt for the complete matrix.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6198 */
6199
Willy Tarreaudc008c52010-02-01 16:20:08 +0100[diff] [blame]6200 if (unlikely((txn->meth == HTTP_METH_CONNECT && txn->status == 200) ||
6201 txn->status == 101)) {
6202 /* Either we've established an explicit tunnel, or we're
6203 * switching the protocol. In both cases, we're very unlikely
Willy Tarreau5843d1a2010-02-01 15:13:32 +0100[diff] [blame]6204 * to understand the next protocols. We have to switch to tunnel
6205 * mode, so that we transfer the request and responses then let
6206 * this protocol pass unmodified. When we later implement specific
6207 * parsers for such protocols, we'll want to check the Upgrade
Willy Tarreaudc008c52010-02-01 16:20:08 +0100[diff] [blame]6208 * header which contains information about that protocol for
6209 * responses with status 101 (eg: see RFC2817 about TLS).
Willy Tarreau5843d1a2010-02-01 15:13:32 +0100[diff] [blame]6210 */
6211 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_TUN;
6212 }
Willy Tarreaudc008c52010-02-01 16:20:08 +0100[diff] [blame]6213 else if ((txn->status >= 200) && !(txn->flags & TX_HDR_CONN_PRS) &&
6214 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6215 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6216 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6217 int to_del = 0;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6218
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]6219 /* this situation happens when combining pretend-keepalive with httpclose. */
6220 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6221 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6222 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]6223 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
6224
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6225 /* on unknown transfer length, we must close */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6226 if (!(msg->flags & HTTP_MSGF_XFER_LEN) &&
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6227 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
6228 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6229
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6230 /* now adjust header transformations depending on current state */
6231 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN ||
6232 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
6233 to_del |= 2; /* remove "keep-alive" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6234 if (!(msg->flags & HTTP_MSGF_VER_11))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6235 to_del |= 1; /* remove "close" for HTTP/1.0 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6236 }
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6237 else { /* SCL / KAL */
6238 to_del |= 1; /* remove "close" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6239 if (txn->req.flags & msg->flags & HTTP_MSGF_VER_11)
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6240 to_del |= 2; /* remove "keep-alive" on pure 1.1 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6241 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6242
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6243 /* Parse and remove some headers from the connection header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]6244 http_parse_connection_header(txn, msg, to_del);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6245
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6246 /* Some keep-alive responses are converted to Server-close if
6247 * the server wants to close.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6248 */
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6249 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL) {
6250 if ((txn->flags & TX_HDR_CONN_CLO) ||
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6251 (!(txn->flags & TX_HDR_CONN_KAL) && !(msg->flags & HTTP_MSGF_VER_11)))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6252 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_SCL;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]6253 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6254 }
6255
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]6256 /* we want to have the response time before we start processing it */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6257 s->logs.t_data = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]6258
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6259 /* end of job, return OK */
6260 rep->analysers &= ~an_bit;
6261 rep->analyse_exp = TICK_ETERNITY;
6262 channel_auto_close(rep);
6263 return 1;
6264
6265 abort_keep_alive:
6266 /* A keep-alive request to the server failed on a network error.
6267 * The client is required to retry. We need to close without returning
6268 * any other information so that the client retries.
6269 */
6270 txn->status = 0;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6271 rep->analysers &= AN_FLT_END;
6272 s->req.analysers &= AN_FLT_END;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6273 channel_auto_close(rep);
6274 s->logs.logwait = 0;
6275 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6276 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]6277 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6278 http_reply_and_close(s, txn->status, NULL);
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6279 return 0;
6280}
6281
6282/* This function performs all the processing enabled for the current response.
6283 * It normally returns 1 unless it wants to break. It relies on buffers flags,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6284 * and updates s->res.analysers. It might make sense to explode it into several
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6285 * other functions. It works like process_request (see indications above).
6286 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6287int 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]6288{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]6289 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6290 struct http_txn *txn = s->txn;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6291 struct http_msg *msg = &txn->rsp;
6292 struct proxy *cur_proxy;
6293 struct cond_wordlist *wl;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]6294 enum rule_result ret = HTTP_RULE_RES_CONT;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6295
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6296 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]6297 now_ms, __FUNCTION__,
6298 s,
6299 rep,
6300 rep->rex, rep->wex,
6301 rep->flags,
6302 rep->buf->i,
6303 rep->analysers);
6304
6305 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) /* we need more data */
6306 return 0;
6307
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]6308 /* The stats applet needs to adjust the Connection header but we don't
6309 * apply any filter there.
6310 */
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]6311 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
6312 rep->analysers &= ~an_bit;
6313 rep->analyse_exp = TICK_ETERNITY;
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]6314 goto skip_filters;
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]6315 }
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]6316
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6317 /*
6318 * We will have to evaluate the filters.
6319 * As opposed to version 1.2, now they will be evaluated in the
6320 * filters order and not in the header order. This means that
6321 * each filter has to be validated among all headers.
6322 *
6323 * Filters are tried with ->be first, then with ->fe if it is
6324 * different from ->be.
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]6325 *
6326 * Maybe we are in resume condiion. In this case I choose the
6327 * "struct proxy" which contains the rule list matching the resume
6328 * pointer. If none of theses "struct proxy" match, I initialise
6329 * the process with the first one.
6330 *
6331 * In fact, I check only correspondance betwwen the current list
6332 * pointer and the ->fe rule list. If it doesn't match, I initialize
6333 * the loop with the ->be.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6334 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6335 if (s->current_rule_list == &sess->fe->http_res_rules)
6336 cur_proxy = sess->fe;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]6337 else
6338 cur_proxy = s->be;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6339 while (1) {
6340 struct proxy *rule_set = cur_proxy;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6341
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6342 /* evaluate http-response rules */
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]6343 if (ret == HTTP_RULE_RES_CONT) {
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]6344 ret = http_res_get_intercept_rule(cur_proxy, &cur_proxy->http_res_rules, s);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]6345
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]6346 if (ret == HTTP_RULE_RES_BADREQ)
6347 goto return_srv_prx_502;
6348
6349 if (ret == HTTP_RULE_RES_DONE) {
6350 rep->analysers &= ~an_bit;
6351 rep->analyse_exp = TICK_ETERNITY;
6352 return 1;
6353 }
6354 }
6355
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]6356 /* we need to be called again. */
6357 if (ret == HTTP_RULE_RES_YIELD) {
6358 channel_dont_close(rep);
6359 return 0;
6360 }
6361
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6362 /* try headers filters */
6363 if (rule_set->rsp_exp != NULL) {
6364 if (apply_filters_to_response(s, rep, rule_set) < 0) {
6365 return_bad_resp:
6366 if (objt_server(s->target)) {
6367 objt_server(s->target)->counters.failed_resp++;
6368 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_RSP);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]6369 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6370 s->be->be_counters.failed_resp++;
6371 return_srv_prx_502:
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6372 rep->analysers &= AN_FLT_END;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6373 txn->status = 502;
6374 s->logs.t_data = -1; /* was not a valid response */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]6375 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]6376 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6377 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_502));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6378 if (!(s->flags & SF_ERR_MASK))
6379 s->flags |= SF_ERR_PRXCOND;
6380 if (!(s->flags & SF_FINST_MASK))
6381 s->flags |= SF_FINST_H;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6382 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6383 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6384 }
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]6385
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6386 /* has the response been denied ? */
6387 if (txn->flags & TX_SVDENY) {
6388 if (objt_server(s->target))
6389 objt_server(s->target)->counters.failed_secu++;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]6390
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6391 s->be->be_counters.denied_resp++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6392 sess->fe->fe_counters.denied_resp++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]6393 if (sess->listener->counters)
6394 sess->listener->counters->denied_resp++;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6395
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6396 goto return_srv_prx_502;
6397 }
Willy Tarreau0bbc3cf2006-10-15 14:26:02 +0200[diff] [blame]6398
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6399 /* add response headers from the rule sets in the same order */
6400 list_for_each_entry(wl, &rule_set->rsp_add, list) {
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]6401 if (txn->status < 200 && txn->status != 101)
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6402 break;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6403 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6404 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]6405 ret = acl_pass(ret);
6406 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
6407 ret = !ret;
6408 if (!ret)
6409 continue;
6410 }
6411 if (unlikely(http_header_add_tail(&txn->rsp, &txn->hdr_idx, wl->s) < 0))
6412 goto return_bad_resp;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6413 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6414
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6415 /* check whether we're already working on the frontend */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6416 if (cur_proxy == sess->fe)
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6417 break;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6418 cur_proxy = sess->fe;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6419 }
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]6420
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]6421 /* After this point, this anayzer can't return yield, so we can
6422 * remove the bit corresponding to this analyzer from the list.
6423 *
6424 * Note that the intermediate returns and goto found previously
6425 * reset the analyzers.
6426 */
6427 rep->analysers &= ~an_bit;
6428 rep->analyse_exp = TICK_ETERNITY;
6429
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6430 /* OK that's all we can do for 1xx responses */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]6431 if (unlikely(txn->status < 200 && txn->status != 101))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6432 goto skip_header_mangling;
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]6433
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6434 /*
6435 * Now check for a server cookie.
6436 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]6437 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]6438 manage_server_side_cookies(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6439
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6440 /*
6441 * Check for cache-control or pragma headers if required.
6442 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]6443 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]6444 check_response_for_cacheability(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6445
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6446 /*
6447 * Add server cookie in the response if needed
6448 */
6449 if (objt_server(s->target) && (s->be->ck_opts & PR_CK_INS) &&
6450 !((txn->flags & TX_SCK_FOUND) && (s->be->ck_opts & PR_CK_PSV)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6451 (!(s->flags & SF_DIRECT) ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6452 ((s->be->cookie_maxidle || txn->cookie_last_date) &&
6453 (!txn->cookie_last_date || (txn->cookie_last_date - date.tv_sec) < 0)) ||
6454 (s->be->cookie_maxlife && !txn->cookie_first_date) || // set the first_date
6455 (!s->be->cookie_maxlife && txn->cookie_first_date)) && // remove the first_date
6456 (!(s->be->ck_opts & PR_CK_POST) || (txn->meth == HTTP_METH_POST)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6457 !(s->flags & SF_IGNORE_PRST)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6458 /* the server is known, it's not the one the client requested, or the
6459 * cookie's last seen date needs to be refreshed. We have to
6460 * insert a set-cookie here, except if we want to insert only on POST
6461 * requests and this one isn't. Note that servers which don't have cookies
6462 * (eg: some backup servers) will return a full cookie removal request.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6463 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6464 if (!objt_server(s->target)->cookie) {
6465 chunk_printf(&trash,
6466 "Set-Cookie: %s=; Expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/",
6467 s->be->cookie_name);
6468 }
6469 else {
6470 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]6471
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6472 if (s->be->cookie_maxidle || s->be->cookie_maxlife) {
6473 /* emit last_date, which is mandatory */
6474 trash.str[trash.len++] = COOKIE_DELIM_DATE;
6475 s30tob64((date.tv_sec+3) >> 2, trash.str + trash.len);
6476 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6477
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6478 if (s->be->cookie_maxlife) {
6479 /* emit first_date, which is either the original one or
6480 * the current date.
6481 */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6482 trash.str[trash.len++] = COOKIE_DELIM_DATE;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6483 s30tob64(txn->cookie_first_date ?
6484 txn->cookie_first_date >> 2 :
6485 (date.tv_sec+3) >> 2, trash.str + trash.len);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6486 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6487 }
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6488 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6489 chunk_appendf(&trash, "; path=/");
6490 }
Willy Tarreau4992dd22012-05-31 21:02:17 +0200[diff] [blame]6491
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6492 if (s->be->cookie_domain)
6493 chunk_appendf(&trash, "; domain=%s", s->be->cookie_domain);
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6494
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6495 if (s->be->ck_opts & PR_CK_HTTPONLY)
6496 chunk_appendf(&trash, "; HttpOnly");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6497
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6498 if (s->be->ck_opts & PR_CK_SECURE)
6499 chunk_appendf(&trash, "; Secure");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6500
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6501 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx, trash.str, trash.len) < 0))
6502 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6503
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6504 txn->flags &= ~TX_SCK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6505 if (objt_server(s->target)->cookie && (s->flags & SF_DIRECT))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6506 /* the server did not change, only the date was updated */
6507 txn->flags |= TX_SCK_UPDATED;
6508 else
6509 txn->flags |= TX_SCK_INSERTED;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6510
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6511 /* Here, we will tell an eventual cache on the client side that we don't
6512 * want it to cache this reply because HTTP/1.0 caches also cache cookies !
6513 * Some caches understand the correct form: 'no-cache="set-cookie"', but
6514 * others don't (eg: apache <= 1.3.26). So we use 'private' instead.
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6515 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6516 if ((s->be->ck_opts & PR_CK_NOC) && (txn->flags & TX_CACHEABLE)) {
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6517
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6518 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]6519
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6520 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx,
6521 "Cache-control: private", 22) < 0))
6522 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6523 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6524 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6525
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6526 /*
6527 * Check if result will be cacheable with a cookie.
6528 * We'll block the response if security checks have caught
6529 * nasty things such as a cacheable cookie.
6530 */
6531 if (((txn->flags & (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) ==
6532 (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) &&
6533 (s->be->options & PR_O_CHK_CACHE)) {
6534 /* we're in presence of a cacheable response containing
6535 * a set-cookie header. We'll block it as requested by
6536 * the 'checkcache' option, and send an alert.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6537 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6538 if (objt_server(s->target))
6539 objt_server(s->target)->counters.failed_secu++;
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6540
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6541 s->be->be_counters.denied_resp++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6542 sess->fe->fe_counters.denied_resp++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]6543 if (sess->listener->counters)
6544 sess->listener->counters->denied_resp++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6545
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6546 Alert("Blocking cacheable cookie in response from instance %s, server %s.\n",
6547 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
6548 send_log(s->be, LOG_ALERT,
6549 "Blocking cacheable cookie in response from instance %s, server %s.\n",
6550 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
6551 goto return_srv_prx_502;
6552 }
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]6553
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]6554 skip_filters:
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6555 /*
6556 * Adjust "Connection: close" or "Connection: keep-alive" if needed.
6557 * If an "Upgrade" token is found, the header is left untouched in order
6558 * 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]6559 * if anything but "Upgrade" is present in the Connection header. We don't
6560 * want to touch any 101 response either since it's switching to another
6561 * protocol.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6562 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]6563 if ((txn->status != 101) && !(txn->flags & TX_HDR_CONN_UPG) &&
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6564 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6565 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6566 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
6567 unsigned int want_flags = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6568
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6569 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6570 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
6571 /* we want a keep-alive response here. Keep-alive header
6572 * required if either side is not 1.1.
6573 */
6574 if (!(txn->req.flags & msg->flags & HTTP_MSGF_VER_11))
6575 want_flags |= TX_CON_KAL_SET;
6576 }
6577 else {
6578 /* we want a close response here. Close header required if
6579 * the server is 1.1, regardless of the client.
6580 */
6581 if (msg->flags & HTTP_MSGF_VER_11)
6582 want_flags |= TX_CON_CLO_SET;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6583 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6584
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6585 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
6586 http_change_connection_header(txn, msg, want_flags);
6587 }
6588
6589 skip_header_mangling:
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]6590 if ((msg->flags & HTTP_MSGF_XFER_LEN) || HAS_FILTERS(s) ||
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6591 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN) {
6592 rep->analysers &= ~AN_FLT_XFER_DATA;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6593 rep->analysers |= AN_RES_HTTP_XFER_BODY;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6594 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6595
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6596 /* if the user wants to log as soon as possible, without counting
6597 * bytes from the server, then this is the right moment. We have
6598 * to temporarily assign bytes_out to log what we currently have.
6599 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6600 if (!LIST_ISEMPTY(&sess->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6601 s->logs.t_close = s->logs.t_data; /* to get a valid end date */
6602 s->logs.bytes_out = txn->rsp.eoh;
6603 s->do_log(s);
6604 s->logs.bytes_out = 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6605 }
Willy Tarreaue3fa6e52010-01-04 22:57:43 +0100[diff] [blame]6606 return 1;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6607}
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6608
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6609/* This function is an analyser which forwards response body (including chunk
6610 * sizes if any). It is called as soon as we must forward, even if we forward
6611 * zero byte. The only situation where it must not be called is when we're in
6612 * tunnel mode and we want to forward till the close. It's used both to forward
6613 * remaining data and to resync after end of body. It expects the msg_state to
6614 * 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]6615 * 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]6616 *
6617 * It is capable of compressing response data both in content-length mode and
6618 * in chunked mode. The state machines follows different flows depending on
6619 * whether content-length and chunked modes are used, since there are no
6620 * trailers in content-length :
6621 *
6622 * chk-mode cl-mode
6623 * ,----- BODY -----.
6624 * / \
6625 * V size > 0 V chk-mode
6626 * .--> SIZE -------------> DATA -------------> CRLF
6627 * | | size == 0 | last byte |
6628 * | v final crlf v inspected |
6629 * | TRAILERS -----------> DONE |
6630 * | |
6631 * `----------------------------------------------'
6632 *
6633 * Compression only happens in the DATA state, and must be flushed in final
6634 * states (TRAILERS/DONE) or when leaving on missing data. Normal forwarding
6635 * is performed at once on final states for all bytes parsed, or when leaving
6636 * on missing data.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6637 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6638int http_response_forward_body(struct stream *s, struct channel *res, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6639{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6640 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6641 struct http_txn *txn = s->txn;
6642 struct http_msg *msg = &s->txn->rsp;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]6643 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6644
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6645 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
6646 return 0;
6647
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6648 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]6649 ((res->flags & CF_SHUTW) && (res->to_forward || res->buf->o)) ||
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6650 !s->req.analysers) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6651 /* Output closed while we were sending data. We must abort and
6652 * wake the other side up.
6653 */
6654 msg->msg_state = HTTP_MSG_ERROR;
6655 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]6656 return 1;
6657 }
6658
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6659 /* in most states, we should abort in case of early close */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6660 channel_auto_close(res);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]6661
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6662 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6663 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
6664 ? HTTP_MSG_CHUNK_SIZE
6665 : HTTP_MSG_DATA);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6666 }
6667
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6668 if (res->to_forward) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6669 /* We can't process the buffer's contents yet */
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6670 res->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6671 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6672 }
6673
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6674 if (msg->msg_state < HTTP_MSG_DONE) {
6675 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
6676 ? http_msg_forward_chunked_body(s, msg)
6677 : http_msg_forward_body(s, msg));
6678 if (!ret)
6679 goto missing_data_or_waiting;
6680 if (ret < 0)
6681 goto return_bad_res;
6682 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6683
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6684 /* other states, DONE...TUNNEL */
6685 /* for keep-alive we don't want to forward closes on DONE */
6686 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6687 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
6688 channel_dont_close(res);
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]6689
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6690 ret = msg->msg_state;
6691 if (http_resync_states(s)) {
6692 /* some state changes occurred, maybe the analyser was disabled
6693 * too. */
6694 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
6695 if (res->flags & CF_SHUTW) {
6696 /* response errors are most likely due to the
6697 * client aborting the transfer. */
6698 goto aborted_xfer;
Willy Tarreau5523b322009-12-29 12:05:52 +0100[diff] [blame]6699 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6700 if (msg->err_pos >= 0)
6701 http_capture_bad_message(&s->be->invalid_rep, s, msg, ret, strm_fe(s));
6702 goto return_bad_res;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6703 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6704 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6705 }
Willy Tarreauf51d03c2016-05-02 15:25:15 +0200[diff] [blame]6706 return 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6707
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6708 missing_data_or_waiting:
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6709 if (res->flags & CF_SHUTW)
6710 goto aborted_xfer;
6711
6712 /* stop waiting for data if the input is closed before the end. If the
6713 * client side was already closed, it means that the client has aborted,
6714 * so we don't want to count this as a server abort. Otherwise it's a
6715 * server abort.
6716 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6717 if (res->flags & CF_SHUTR) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6718 if ((s->req.flags & (CF_SHUTR|CF_SHUTW)) == (CF_SHUTR|CF_SHUTW))
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6719 goto aborted_xfer;
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6720 /* If we have some pending data, we continue the processing */
6721 if (!buffer_pending(res->buf)) {
6722 if (!(s->flags & SF_ERR_MASK))
6723 s->flags |= SF_ERR_SRVCL;
6724 s->be->be_counters.srv_aborts++;
6725 if (objt_server(s->target))
6726 objt_server(s->target)->counters.srv_aborts++;
6727 goto return_bad_res_stats_ok;
6728 }
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6729 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6730
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6731 /* we need to obey the req analyser, so if it leaves, we must too */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6732 if (!s->req.analysers)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]6733 goto return_bad_res;
6734
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6735 /* When TE: chunked is used, we need to get there again to parse
6736 * remaining chunks even if the server has closed, so we don't want to
6737 * set CF_DONTCLOSE. Similarly, if the body length is undefined, if
6738 * keep-alive is set on the client side or if there are filters
6739 * registered on the stream, we don't want to forward a close
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6740 */
Christopher Faulet92d36382015-11-05 13:35:03 +0100[diff] [blame]6741 if ((msg->flags & HTTP_MSGF_TE_CHNK) || !msg->body_len ||
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6742 HAS_FILTERS(s) ||
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6743 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6744 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6745 channel_dont_close(res);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6746
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6747 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6748 * 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]6749 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]6750 * modes are already handled by the stream sock layer. We must not do
6751 * this in content-length mode because it could present the MSG_MORE
6752 * flag with the last block of forwarded data, which would cause an
6753 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6754 */
Christopher Faulet92d36382015-11-05 13:35:03 +0100[diff] [blame]6755 if ((msg->flags & HTTP_MSGF_TE_CHNK) || (msg->flags & HTTP_MSGF_COMPRESSING))
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6756 res->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6757
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6758 /* the stream handler will take care of timeouts and errors */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6759 return 0;
6760
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6761 return_bad_res: /* let's centralize all bad responses */
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]6762 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6763 if (objt_server(s->target))
6764 objt_server(s->target)->counters.failed_resp++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6765
6766 return_bad_res_stats_ok:
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6767 txn->rsp.msg_state = HTTP_MSG_ERROR;
Willy Tarreau148d0992010-01-10 10:21:21 +0100[diff] [blame]6768 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6769 http_reply_and_close(s, txn->status, NULL);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6770 res->analysers &= AN_FLT_END;
6771 s->req.analysers &= AN_FLT_END; /* we're in data phase, we want to abort both directions */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6772 if (objt_server(s->target))
6773 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6774
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6775 if (!(s->flags & SF_ERR_MASK))
6776 s->flags |= SF_ERR_PRXCOND;
6777 if (!(s->flags & SF_FINST_MASK))
6778 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6779 return 0;
6780
6781 aborted_xfer:
6782 txn->rsp.msg_state = HTTP_MSG_ERROR;
6783 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6784 http_reply_and_close(s, txn->status, NULL);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6785 res->analysers &= AN_FLT_END;
6786 s->req.analysers &= AN_FLT_END; /* we're in data phase, we want to abort both directions */
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6787
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6788 sess->fe->fe_counters.cli_aborts++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]6789 s->be->be_counters.cli_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6790 if (objt_server(s->target))
6791 objt_server(s->target)->counters.cli_aborts++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6792
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6793 if (!(s->flags & SF_ERR_MASK))
6794 s->flags |= SF_ERR_CLICL;
6795 if (!(s->flags & SF_FINST_MASK))
6796 s->flags |= SF_FINST_D;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6797 return 0;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6798}
6799
6800
6801static inline int
6802http_msg_forward_body(struct stream *s, struct http_msg *msg)
6803{
6804 struct channel *chn = msg->chn;
6805 int ret;
6806
6807 /* Here we have the guarantee to be in HTTP_MSG_DATA or HTTP_MSG_ENDING state */
6808
6809 if (msg->msg_state == HTTP_MSG_ENDING)
6810 goto ending;
6811
6812 /* Neither content-length, nor transfer-encoding was found, so we must
6813 * read the body until the server connection is closed. In that case, we
6814 * eat data as they come. Of course, this happens for response only. */
6815 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6816 unsigned long long len = (chn->buf->i - msg->next);
6817 msg->chunk_len += len;
6818 msg->body_len += len;
6819 }
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6820 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6821 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6822 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6823 msg->next += ret;
6824 msg->chunk_len -= ret;
6825 if (msg->chunk_len) {
6826 /* input empty or output full */
6827 if (chn->buf->i > msg->next)
6828 chn->flags |= CF_WAKE_WRITE;
6829 goto missing_data_or_waiting;
6830 }
6831
6832 if (!(msg->flags & HTTP_MSGF_XFER_LEN) && !(chn->flags & CF_SHUTR)) {
6833 /* The server still sending data */
6834 goto missing_data_or_waiting;
6835 }
6836 msg->msg_state = HTTP_MSG_ENDING;
6837
6838 ending:
6839 /* we may have some pending data starting at res->buf->p such as a last
6840 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6841 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6842 /* default_ret */ msg->next,
6843 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6844 b_adv(chn->buf, ret);
6845 msg->next -= ret;
6846 if (msg->next)
6847 goto missing_data_or_waiting;
6848
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6849 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
6850 /* default_ret */ 1,
6851 /* on_error */ goto error,
6852 /* on_wait */ goto waiting);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6853 msg->msg_state = HTTP_MSG_DONE;
6854 return 1;
6855
6856 missing_data_or_waiting:
6857 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6858 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6859 /* default_ret */ msg->next,
6860 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6861 b_adv(chn->buf, ret);
6862 msg->next -= ret;
6863 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6864 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6865 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6866 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
6867 waiting:
6868 return 0;
6869 error:
6870 return -1;
6871}
6872
6873static inline int
6874http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg)
6875{
6876 struct channel *chn = msg->chn;
6877 int ret;
6878
6879 /* Here we have the guarantee to be in one of the following state:
6880 * HTTP_MSG_DATA, HTTP_MSG_CHUNK_SIZE, HTTP_MSG_CHUNK_CRLF,
6881 * HTTP_MSG_TRAILERS or HTTP_MSG_ENDING. */
6882
6883 switch_states:
6884 switch (msg->msg_state) {
6885 case HTTP_MSG_DATA:
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6886 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6887 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6888 /* on_error */ goto error);
6889 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6890 msg->chunk_len -= ret;
6891 if (msg->chunk_len) {
6892 /* input empty or output full */
6893 if (chn->buf->i > msg->next)
6894 chn->flags |= CF_WAKE_WRITE;
6895 goto missing_data_or_waiting;
6896 }
6897
6898 /* nothing left to forward for this chunk*/
6899 msg->msg_state = HTTP_MSG_CHUNK_CRLF;
6900 /* fall through for HTTP_MSG_CHUNK_CRLF */
6901
6902 case HTTP_MSG_CHUNK_CRLF:
6903 /* we want the CRLF after the data */
6904 ret = http_skip_chunk_crlf(msg);
6905 if (ret == 0)
6906 goto missing_data_or_waiting;
6907 if (ret < 0)
6908 goto chunk_parsing_error;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6909 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6910 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
6911 /* fall through for HTTP_MSG_CHUNK_SIZE */
6912
6913 case HTTP_MSG_CHUNK_SIZE:
6914 /* read the chunk size and assign it to ->chunk_len,
6915 * then set ->next to point to the body and switch to
6916 * DATA or TRAILERS state.
6917 */
6918 ret = http_parse_chunk_size(msg);
6919 if (ret == 0)
6920 goto missing_data_or_waiting;
6921 if (ret < 0)
6922 goto chunk_parsing_error;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6923 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6924 if (msg->chunk_len) {
6925 msg->msg_state = HTTP_MSG_DATA;
6926 goto switch_states;
6927 }
6928 msg->msg_state = HTTP_MSG_TRAILERS;
6929 /* fall through for HTTP_MSG_TRAILERS */
6930
6931 case HTTP_MSG_TRAILERS:
6932 ret = http_forward_trailers(msg);
6933 if (ret < 0)
6934 goto chunk_parsing_error;
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6935 FLT_STRM_DATA_CB(s, chn, flt_http_chunk_trailers(s, msg),
6936 /* default_ret */ 1,
6937 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6938 msg->next += msg->sol;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6939 if (!ret)
6940 goto missing_data_or_waiting;
6941 break;
6942
6943 case HTTP_MSG_ENDING:
6944 goto ending;
6945
6946 default:
6947 /* This should no happen in this function */
6948 goto error;
6949 }
6950
6951 msg->msg_state = HTTP_MSG_ENDING;
6952 ending:
6953 /* we may have some pending data starting at res->buf->p such as a last
6954 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6955 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]6956 /* default_ret */ msg->next,
6957 /* on_error */ goto error);
6958 b_adv(chn->buf, ret);
6959 msg->next -= ret;
6960 if (msg->next)
6961 goto missing_data_or_waiting;
6962
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6963 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6964 /* default_ret */ 1,
6965 /* on_error */ goto error,
6966 /* on_wait */ goto waiting);
6967 msg->msg_state = HTTP_MSG_DONE;
6968 return 1;
6969
6970 missing_data_or_waiting:
6971 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6972 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]6973 /* default_ret */ msg->next,
6974 /* on_error */ goto error);
6975 b_adv(chn->buf, ret);
6976 msg->next -= ret;
6977 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6978 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6979 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6980 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
6981 waiting:
6982 return 0;
6983
6984 chunk_parsing_error:
6985 if (msg->err_pos >= 0) {
6986 if (chn->flags & CF_ISRESP)
6987 http_capture_bad_message(&s->be->invalid_rep, s, msg,
6988 msg->msg_state, strm_fe(s));
6989 else
6990 http_capture_bad_message(&strm_fe(s)->invalid_req, s,
6991 msg, msg->msg_state, s->be);
6992 }
6993 error:
6994 return -1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6995}
6996
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6997
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6998/* Iterate the same filter through all request headers.
6999 * Returns 1 if this filter can be stopped upon return, otherwise 0.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7000 * Since it can manage the switch to another backend, it updates the per-proxy
7001 * DENY stats.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7002 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7003int 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]7004{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7005 char *cur_ptr, *cur_end, *cur_next;
7006 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7007 struct http_txn *txn = s->txn;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7008 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7009 int delta;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100[diff] [blame]7010
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7011 last_hdr = 0;
7012
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7013 cur_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7014 old_idx = 0;
7015
7016 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7017 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7018 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7019 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7020 (exp->action == ACT_ALLOW ||
7021 exp->action == ACT_DENY ||
7022 exp->action == ACT_TARPIT))
7023 return 0;
7024
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7025 cur_idx = txn->hdr_idx.v[old_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7026 if (!cur_idx)
7027 break;
7028
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7029 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7030 cur_ptr = cur_next;
7031 cur_end = cur_ptr + cur_hdr->len;
7032 cur_next = cur_end + cur_hdr->cr + 1;
7033
7034 /* Now we have one header between cur_ptr and cur_end,
7035 * and the next header starts at cur_next.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7036 */
7037
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7038 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]7039 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7040 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7041 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7042 last_hdr = 1;
7043 break;
7044
7045 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7046 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7047 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7048 break;
7049
7050 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7051 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7052 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7053 break;
7054
7055 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7056 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7057 if (trash.len < 0)
7058 return -1;
7059
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7060 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7061 /* FIXME: if the user adds a newline in the replacement, the
7062 * index will not be recalculated for now, and the new line
7063 * will not be counted as a new header.
7064 */
7065
7066 cur_end += delta;
7067 cur_next += delta;
7068 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7069 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7070 break;
7071
7072 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7073 delta = buffer_replace2(req->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7074 cur_next += delta;
7075
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7076 http_msg_move_end(&txn->req, delta);
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7077 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7078 txn->hdr_idx.used--;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7079 cur_hdr->len = 0;
7080 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7081 cur_idx = old_idx;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7082 break;
7083
7084 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7085 }
7086
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7087 /* keep the link from this header to next one in case of later
7088 * removal of next header.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7089 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7090 old_idx = cur_idx;
7091 }
7092 return 0;
7093}
7094
7095
7096/* Apply the filter to the request line.
7097 * Returns 0 if nothing has been done, 1 if the filter has been applied,
7098 * or -1 if a replacement resulted in an invalid request line.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7099 * Since it can manage the switch to another backend, it updates the per-proxy
7100 * DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7101 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7102int 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]7103{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7104 char *cur_ptr, *cur_end;
7105 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7106 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7107 int delta;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7108
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7109 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7110 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7111 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7112 (exp->action == ACT_ALLOW ||
7113 exp->action == ACT_DENY ||
7114 exp->action == ACT_TARPIT))
7115 return 0;
7116 else if (exp->action == ACT_REMOVE)
7117 return 0;
7118
7119 done = 0;
7120
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7121 cur_ptr = req->buf->p;
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7122 cur_end = cur_ptr + txn->req.sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7123
7124 /* Now we have the request line between cur_ptr and cur_end */
7125
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7126 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]7127 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7128 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7129 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7130 done = 1;
7131 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]7132
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7133 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7134 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7135 done = 1;
7136 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]7137
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7138 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7139 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7140 done = 1;
7141 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]7142
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7143 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7144 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7145 if (trash.len < 0)
7146 return -1;
7147
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7148 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7149 /* FIXME: if the user adds a newline in the replacement, the
7150 * index will not be recalculated for now, and the new line
7151 * will not be counted as a new header.
7152 */
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]7153
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7154 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7155 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7156 cur_end = (char *)http_parse_reqline(&txn->req,
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7157 HTTP_MSG_RQMETH,
7158 cur_ptr, cur_end + 1,
7159 NULL, NULL);
7160 if (unlikely(!cur_end))
7161 return -1;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]7162
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7163 /* we have a full request and we know that we have either a CR
7164 * or an LF at <ptr>.
7165 */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7166 txn->meth = find_http_meth(cur_ptr, txn->req.sl.rq.m_l);
7167 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]7168 /* there is no point trying this regex on headers */
7169 return 1;
7170 }
7171 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7172 return done;
7173}
Willy Tarreau97de6242006-12-27 17:18:38 +0100[diff] [blame]7174
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7175
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7176
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7177/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7178 * 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]7179 * 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]7180 * unparsable request. Since it can manage the switch to another backend, it
7181 * updates the per-proxy DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7182 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7183int apply_filters_to_request(struct stream *s, struct channel *req, struct proxy *px)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7184{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7185 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7186 struct http_txn *txn = s->txn;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]7187 struct hdr_exp *exp;
7188
7189 for (exp = px->req_exp; exp; exp = exp->next) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7190 int ret;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7191
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7192 /*
7193 * The interleaving of transformations and verdicts
7194 * makes it difficult to decide to continue or stop
7195 * the evaluation.
7196 */
7197
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]7198 if (txn->flags & (TX_CLDENY|TX_CLTARPIT))
7199 break;
7200
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7201 if ((txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7202 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]7203 exp->action == ACT_TARPIT || exp->action == ACT_PASS))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7204 continue;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]7205
7206 /* if this filter had a condition, evaluate it now and skip to
7207 * next filter if the condition does not match.
7208 */
7209 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7210 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]7211 ret = acl_pass(ret);
7212 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
7213 ret = !ret;
7214
7215 if (!ret)
7216 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7217 }
7218
7219 /* Apply the filter to the request line. */
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]7220 ret = apply_filter_to_req_line(s, req, exp);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7221 if (unlikely(ret < 0))
7222 return -1;
7223
7224 if (likely(ret == 0)) {
7225 /* The filter did not match the request, it can be
7226 * iterated through all headers.
7227 */
Willy Tarreau34d4c3c2015-01-30 20:58:58 +0100[diff] [blame]7228 if (unlikely(apply_filter_to_req_headers(s, req, exp) < 0))
7229 return -1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7230 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7231 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7232 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7233}
7234
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]7235
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7236/* Find the end of a cookie value contained between <s> and <e>. It works the
7237 * same way as with headers above except that the semi-colon also ends a token.
7238 * See RFC2965 for more information. Note that it requires a valid header to
7239 * return a valid result.
7240 */
7241char *find_cookie_value_end(char *s, const char *e)
7242{
7243 int quoted, qdpair;
7244
7245 quoted = qdpair = 0;
7246 for (; s < e; s++) {
7247 if (qdpair) qdpair = 0;
7248 else if (quoted) {
7249 if (*s == '\\') qdpair = 1;
7250 else if (*s == '"') quoted = 0;
7251 }
7252 else if (*s == '"') quoted = 1;
7253 else if (*s == ',' || *s == ';') return s;
7254 }
7255 return s;
7256}
7257
7258/* Delete a value in a header between delimiters <from> and <next> in buffer
7259 * <buf>. The number of characters displaced is returned, and the pointer to
7260 * the first delimiter is updated if required. The function tries as much as
7261 * possible to respect the following principles :
7262 * - replace <from> delimiter by the <next> one unless <from> points to a
7263 * colon, in which case <next> is simply removed
7264 * - set exactly one space character after the new first delimiter, unless
7265 * there are not enough characters in the block being moved to do so.
7266 * - remove unneeded spaces before the previous delimiter and after the new
7267 * one.
7268 *
7269 * It is the caller's responsibility to ensure that :
7270 * - <from> points to a valid delimiter or the colon ;
7271 * - <next> points to a valid delimiter or the final CR/LF ;
7272 * - there are non-space chars before <from> ;
7273 * - there is a CR/LF at or after <next>.
7274 */
Willy Tarreauaf819352012-08-27 22:08:00 +0200[diff] [blame]7275int del_hdr_value(struct buffer *buf, char **from, char *next)
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7276{
7277 char *prev = *from;
7278
7279 if (*prev == ':') {
7280 /* We're removing the first value, preserve the colon and add a
7281 * space if possible.
7282 */
7283 if (!http_is_crlf[(unsigned char)*next])
7284 next++;
7285 prev++;
7286 if (prev < next)
7287 *prev++ = ' ';
7288
7289 while (http_is_spht[(unsigned char)*next])
7290 next++;
7291 } else {
7292 /* Remove useless spaces before the old delimiter. */
7293 while (http_is_spht[(unsigned char)*(prev-1)])
7294 prev--;
7295 *from = prev;
7296
7297 /* copy the delimiter and if possible a space if we're
7298 * not at the end of the line.
7299 */
7300 if (!http_is_crlf[(unsigned char)*next]) {
7301 *prev++ = *next++;
7302 if (prev + 1 < next)
7303 *prev++ = ' ';
7304 while (http_is_spht[(unsigned char)*next])
7305 next++;
7306 }
7307 }
7308 return buffer_replace2(buf, prev, next, NULL, 0);
7309}
7310
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]7311/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]7312 * Manage client-side cookie. It can impact performance by about 2% so it is
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7313 * desirable to call it only when needed. This code is quite complex because
7314 * of the multiple very crappy and ambiguous syntaxes we have to support. it
7315 * highly recommended not to touch this part without a good reason !
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7316 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7317void manage_client_side_cookies(struct stream *s, struct channel *req)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7318{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7319 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7320 struct session *sess = s->sess;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7321 int preserve_hdr;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7322 int cur_idx, old_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7323 char *hdr_beg, *hdr_end, *hdr_next, *del_from;
7324 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7325
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7326 /* Iterate through the headers, we start with the start line. */
Willy Tarreau83969f42007-01-22 08:55:47 +0100[diff] [blame]7327 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7328 hdr_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7329
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7330 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7331 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7332 int val;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7333
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7334 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7335 hdr_beg = hdr_next;
7336 hdr_end = hdr_beg + cur_hdr->len;
7337 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7338
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7339 /* We have one full header between hdr_beg and hdr_end, and the
7340 * next header starts at hdr_next. We're only interested in
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7341 * "Cookie:" headers.
7342 */
7343
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7344 val = http_header_match2(hdr_beg, hdr_end, "Cookie", 6);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7345 if (!val) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7346 old_idx = cur_idx;
7347 continue;
7348 }
7349
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7350 del_from = NULL; /* nothing to be deleted */
7351 preserve_hdr = 0; /* assume we may kill the whole header */
7352
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7353 /* Now look for cookies. Conforming to RFC2109, we have to support
7354 * attributes whose name begin with a '$', and associate them with
7355 * the right cookie, if we want to delete this cookie.
7356 * So there are 3 cases for each cookie read :
7357 * 1) it's a special attribute, beginning with a '$' : ignore it.
7358 * 2) it's a server id cookie that we *MAY* want to delete : save
7359 * some pointers on it (last semi-colon, beginning of cookie...)
7360 * 3) it's an application cookie : we *MAY* have to delete a previous
7361 * "special" cookie.
7362 * At the end of loop, if a "special" cookie remains, we may have to
7363 * remove it. If no application cookie persists in the header, we
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7364 * *MUST* delete it.
7365 *
7366 * Note: RFC2965 is unclear about the processing of spaces around
7367 * the equal sign in the ATTR=VALUE form. A careful inspection of
7368 * the RFC explicitly allows spaces before it, and not within the
7369 * tokens (attrs or values). An inspection of RFC2109 allows that
7370 * too but section 10.1.3 lets one think that spaces may be allowed
7371 * after the equal sign too, resulting in some (rare) buggy
7372 * implementations trying to do that. So let's do what servers do.
7373 * Latest ietf draft forbids spaces all around. Also, earlier RFCs
7374 * allowed quoted strings in values, with any possible character
7375 * after a backslash, including control chars and delimitors, which
7376 * causes parsing to become ambiguous. Browsers also allow spaces
7377 * within values even without quotes.
7378 *
7379 * We have to keep multiple pointers in order to support cookie
7380 * removal at the beginning, middle or end of header without
7381 * corrupting the header. All of these headers are valid :
7382 *
7383 * Cookie:NAME1=VALUE1;NAME2=VALUE2;NAME3=VALUE3\r\n
7384 * Cookie:NAME1=VALUE1;NAME2_ONLY ;NAME3=VALUE3\r\n
7385 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
7386 * | | | | | | | | |
7387 * | | | | | | | | hdr_end <--+
7388 * | | | | | | | +--> next
7389 * | | | | | | +----> val_end
7390 * | | | | | +-----------> val_beg
7391 * | | | | +--------------> equal
7392 * | | | +----------------> att_end
7393 * | | +---------------------> att_beg
7394 * | +--------------------------> prev
7395 * +--------------------------------> hdr_beg
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7396 */
7397
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7398 for (prev = hdr_beg + 6; prev < hdr_end; prev = next) {
7399 /* Iterate through all cookies on this line */
7400
7401 /* find att_beg */
7402 att_beg = prev + 1;
7403 while (att_beg < hdr_end && http_is_spht[(unsigned char)*att_beg])
7404 att_beg++;
7405
7406 /* find att_end : this is the first character after the last non
7407 * space before the equal. It may be equal to hdr_end.
7408 */
7409 equal = att_end = att_beg;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7410
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7411 while (equal < hdr_end) {
7412 if (*equal == '=' || *equal == ',' || *equal == ';')
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7413 break;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7414 if (http_is_spht[(unsigned char)*equal++])
7415 continue;
7416 att_end = equal;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7417 }
7418
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7419 /* here, <equal> points to '=', a delimitor or the end. <att_end>
7420 * is between <att_beg> and <equal>, both may be identical.
7421 */
7422
7423 /* look for end of cookie if there is an equal sign */
7424 if (equal < hdr_end && *equal == '=') {
7425 /* look for the beginning of the value */
7426 val_beg = equal + 1;
7427 while (val_beg < hdr_end && http_is_spht[(unsigned char)*val_beg])
7428 val_beg++;
7429
7430 /* find the end of the value, respecting quotes */
7431 next = find_cookie_value_end(val_beg, hdr_end);
7432
7433 /* make val_end point to the first white space or delimitor after the value */
7434 val_end = next;
7435 while (val_end > val_beg && http_is_spht[(unsigned char)*(val_end - 1)])
7436 val_end--;
7437 } else {
7438 val_beg = val_end = next = equal;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]7439 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7440
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7441 /* We have nothing to do with attributes beginning with '$'. However,
7442 * they will automatically be removed if a header before them is removed,
7443 * since they're supposed to be linked together.
7444 */
7445 if (*att_beg == '$')
7446 continue;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7447
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7448 /* Ignore cookies with no equal sign */
7449 if (equal == next) {
7450 /* This is not our cookie, so we must preserve it. But if we already
7451 * scheduled another cookie for removal, we cannot remove the
7452 * complete header, but we can remove the previous block itself.
7453 */
7454 preserve_hdr = 1;
7455 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7456 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7457 val_end += delta;
7458 next += delta;
7459 hdr_end += delta;
7460 hdr_next += delta;
7461 cur_hdr->len += delta;
7462 http_msg_move_end(&txn->req, delta);
7463 prev = del_from;
7464 del_from = NULL;
7465 }
7466 continue;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]7467 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7468
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7469 /* if there are spaces around the equal sign, we need to
7470 * strip them otherwise we'll get trouble for cookie captures,
7471 * or even for rewrites. Since this happens extremely rarely,
7472 * it does not hurt performance.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7473 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7474 if (unlikely(att_end != equal || val_beg > equal + 1)) {
7475 int stripped_before = 0;
7476 int stripped_after = 0;
7477
7478 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7479 stripped_before = buffer_replace2(req->buf, att_end, equal, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7480 equal += stripped_before;
7481 val_beg += stripped_before;
7482 }
7483
7484 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7485 stripped_after = buffer_replace2(req->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7486 val_beg += stripped_after;
7487 stripped_before += stripped_after;
7488 }
7489
7490 val_end += stripped_before;
7491 next += stripped_before;
7492 hdr_end += stripped_before;
7493 hdr_next += stripped_before;
7494 cur_hdr->len += stripped_before;
7495 http_msg_move_end(&txn->req, stripped_before);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7496 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7497 /* now everything is as on the diagram above */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7498
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7499 /* First, let's see if we want to capture this cookie. We check
7500 * that we don't already have a client side cookie, because we
7501 * can only capture one. Also as an optimisation, we ignore
7502 * cookies shorter than the declared name.
7503 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7504 if (sess->fe->capture_name != NULL && txn->cli_cookie == NULL &&
7505 (val_end - att_beg >= sess->fe->capture_namelen) &&
7506 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7507 int log_len = val_end - att_beg;
7508
7509 if ((txn->cli_cookie = pool_alloc2(pool2_capture)) == NULL) {
7510 Alert("HTTP logging : out of memory.\n");
7511 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7512 if (log_len > sess->fe->capture_len)
7513 log_len = sess->fe->capture_len;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7514 memcpy(txn->cli_cookie, att_beg, log_len);
7515 txn->cli_cookie[log_len] = 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7516 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7517 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7518
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7519 /* Persistence cookies in passive, rewrite or insert mode have the
7520 * following form :
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7521 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7522 * Cookie: NAME=SRV[|<lastseen>[|<firstseen>]]
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7523 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7524 * For cookies in prefix mode, the form is :
7525 *
7526 * Cookie: NAME=SRV~VALUE
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7527 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7528 if ((att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
7529 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
7530 struct server *srv = s->be->srv;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7531 char *delim;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7532
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7533 /* if we're in cookie prefix mode, we'll search the delimitor so that we
7534 * have the server ID between val_beg and delim, and the original cookie between
7535 * delim+1 and val_end. Otherwise, delim==val_end :
7536 *
7537 * Cookie: NAME=SRV; # in all but prefix modes
7538 * Cookie: NAME=SRV~OPAQUE ; # in prefix mode
7539 * | || || | |+-> next
7540 * | || || | +--> val_end
7541 * | || || +---------> delim
7542 * | || |+------------> val_beg
7543 * | || +-------------> att_end = equal
7544 * | |+-----------------> att_beg
7545 * | +------------------> prev
7546 * +-------------------------> hdr_beg
7547 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7548
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7549 if (s->be->ck_opts & PR_CK_PFX) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7550 for (delim = val_beg; delim < val_end; delim++)
7551 if (*delim == COOKIE_DELIM)
7552 break;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7553 } else {
7554 char *vbar1;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7555 delim = val_end;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7556 /* Now check if the cookie contains a date field, which would
7557 * appear after a vertical bar ('|') just after the server name
7558 * and before the delimiter.
7559 */
7560 vbar1 = memchr(val_beg, COOKIE_DELIM_DATE, val_end - val_beg);
7561 if (vbar1) {
7562 /* OK, so left of the bar is the server's cookie and
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7563 * right is the last seen date. It is a base64 encoded
7564 * 30-bit value representing the UNIX date since the
7565 * epoch in 4-second quantities.
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7566 */
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7567 int val;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7568 delim = vbar1++;
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7569 if (val_end - vbar1 >= 5) {
7570 val = b64tos30(vbar1);
7571 if (val > 0)
7572 txn->cookie_last_date = val << 2;
7573 }
7574 /* look for a second vertical bar */
7575 vbar1 = memchr(vbar1, COOKIE_DELIM_DATE, val_end - vbar1);
7576 if (vbar1 && (val_end - vbar1 > 5)) {
7577 val = b64tos30(vbar1 + 1);
7578 if (val > 0)
7579 txn->cookie_first_date = val << 2;
7580 }
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7581 }
7582 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7583
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7584 /* if the cookie has an expiration date and the proxy wants to check
7585 * it, then we do that now. We first check if the cookie is too old,
7586 * then only if it has expired. We detect strict overflow because the
7587 * time resolution here is not great (4 seconds). Cookies with dates
7588 * in the future are ignored if their offset is beyond one day. This
7589 * allows an admin to fix timezone issues without expiring everyone
7590 * and at the same time avoids keeping unwanted side effects for too
7591 * long.
7592 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7593 if (txn->cookie_first_date && s->be->cookie_maxlife &&
7594 (((signed)(date.tv_sec - txn->cookie_first_date) > (signed)s->be->cookie_maxlife) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]7595 ((signed)(txn->cookie_first_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7596 txn->flags &= ~TX_CK_MASK;
7597 txn->flags |= TX_CK_OLD;
7598 delim = val_beg; // let's pretend we have not found the cookie
7599 txn->cookie_first_date = 0;
7600 txn->cookie_last_date = 0;
7601 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7602 else if (txn->cookie_last_date && s->be->cookie_maxidle &&
7603 (((signed)(date.tv_sec - txn->cookie_last_date) > (signed)s->be->cookie_maxidle) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]7604 ((signed)(txn->cookie_last_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7605 txn->flags &= ~TX_CK_MASK;
7606 txn->flags |= TX_CK_EXPIRED;
7607 delim = val_beg; // let's pretend we have not found the cookie
7608 txn->cookie_first_date = 0;
7609 txn->cookie_last_date = 0;
7610 }
7611
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7612 /* Here, we'll look for the first running server which supports the cookie.
7613 * This allows to share a same cookie between several servers, for example
7614 * to dedicate backup servers to specific servers only.
7615 * However, to prevent clients from sticking to cookie-less backup server
7616 * when they have incidentely learned an empty cookie, we simply ignore
7617 * empty cookies and mark them as invalid.
7618 * The same behaviour is applied when persistence must be ignored.
7619 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7620 if ((delim == val_beg) || (s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7621 srv = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7622
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7623 while (srv) {
7624 if (srv->cookie && (srv->cklen == delim - val_beg) &&
7625 !memcmp(val_beg, srv->cookie, delim - val_beg)) {
Willy Tarreau892337c2014-05-13 23:41:20 +0200[diff] [blame]7626 if ((srv->state != SRV_ST_STOPPED) ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7627 (s->be->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7628 (s->flags & SF_FORCE_PRST)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7629 /* we found the server and we can use it */
7630 txn->flags &= ~TX_CK_MASK;
Willy Tarreau892337c2014-05-13 23:41:20 +0200[diff] [blame]7631 txn->flags |= (srv->state != SRV_ST_STOPPED) ? TX_CK_VALID : TX_CK_DOWN;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7632 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7633 s->target = &srv->obj_type;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7634 break;
7635 } else {
7636 /* we found a server, but it's down,
7637 * mark it as such and go on in case
7638 * another one is available.
7639 */
7640 txn->flags &= ~TX_CK_MASK;
7641 txn->flags |= TX_CK_DOWN;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7642 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7643 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7644 srv = srv->next;
7645 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7646
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7647 if (!srv && !(txn->flags & (TX_CK_DOWN|TX_CK_EXPIRED|TX_CK_OLD))) {
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7648 /* no server matched this cookie or we deliberately skipped it */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7649 txn->flags &= ~TX_CK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7650 if ((s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7651 txn->flags |= TX_CK_UNUSED;
7652 else
7653 txn->flags |= TX_CK_INVALID;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7654 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7655
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7656 /* depending on the cookie mode, we may have to either :
7657 * - delete the complete cookie if we're in insert+indirect mode, so that
7658 * the server never sees it ;
7659 * - remove the server id from the cookie value, and tag the cookie as an
7660 * application cookie so that it does not get accidentely removed later,
7661 * if we're in cookie prefix mode
7662 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7663 if ((s->be->ck_opts & PR_CK_PFX) && (delim != val_end)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7664 int delta; /* negative */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7665
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7666 delta = buffer_replace2(req->buf, val_beg, delim + 1, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7667 val_end += delta;
7668 next += delta;
7669 hdr_end += delta;
7670 hdr_next += delta;
7671 cur_hdr->len += delta;
7672 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7673
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7674 del_from = NULL;
7675 preserve_hdr = 1; /* we want to keep this cookie */
7676 }
7677 else if (del_from == NULL &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7678 (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]7679 del_from = prev;
7680 }
7681 } else {
7682 /* This is not our cookie, so we must preserve it. But if we already
7683 * scheduled another cookie for removal, we cannot remove the
7684 * complete header, but we can remove the previous block itself.
7685 */
7686 preserve_hdr = 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7687
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7688 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7689 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaub8105542010-11-24 18:31:28 +0100[diff] [blame]7690 if (att_beg >= del_from)
7691 att_beg += delta;
7692 if (att_end >= del_from)
7693 att_end += delta;
7694 val_beg += delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7695 val_end += delta;
7696 next += delta;
7697 hdr_end += delta;
7698 hdr_next += delta;
7699 cur_hdr->len += delta;
7700 http_msg_move_end(&txn->req, delta);
7701 prev = del_from;
7702 del_from = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7703 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7704 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7705
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7706 /* continue with next cookie on this header line */
7707 att_beg = next;
7708 } /* for each cookie */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7709
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7710 /* There are no more cookies on this line.
7711 * We may still have one (or several) marked for deletion at the
7712 * end of the line. We must do this now in two ways :
7713 * - if some cookies must be preserved, we only delete from the
7714 * mark to the end of line ;
7715 * - if nothing needs to be preserved, simply delete the whole header
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7716 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7717 if (del_from) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7718 int delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7719 if (preserve_hdr) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7720 delta = del_hdr_value(req->buf, &del_from, hdr_end);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7721 hdr_end = del_from;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7722 cur_hdr->len += delta;
7723 } else {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7724 delta = buffer_replace2(req->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7725
7726 /* FIXME: this should be a separate function */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7727 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7728 txn->hdr_idx.used--;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7729 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7730 cur_idx = old_idx;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7731 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7732 hdr_next += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7733 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7734 }
7735
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7736 /* check next header */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7737 old_idx = cur_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7738 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7739}
7740
7741
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7742/* Iterate the same filter through all response headers contained in <rtr>.
7743 * Returns 1 if this filter can be stopped upon return, otherwise 0.
7744 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7745int 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]7746{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7747 char *cur_ptr, *cur_end, *cur_next;
7748 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7749 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7750 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7751 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7752
7753 last_hdr = 0;
7754
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7755 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7756 old_idx = 0;
7757
7758 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7759 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7760 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7761 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7762 (exp->action == ACT_ALLOW ||
7763 exp->action == ACT_DENY))
7764 return 0;
7765
7766 cur_idx = txn->hdr_idx.v[old_idx].next;
7767 if (!cur_idx)
7768 break;
7769
7770 cur_hdr = &txn->hdr_idx.v[cur_idx];
7771 cur_ptr = cur_next;
7772 cur_end = cur_ptr + cur_hdr->len;
7773 cur_next = cur_end + cur_hdr->cr + 1;
7774
7775 /* Now we have one header between cur_ptr and cur_end,
7776 * and the next header starts at cur_next.
7777 */
7778
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7779 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]7780 switch (exp->action) {
7781 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7782 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7783 last_hdr = 1;
7784 break;
7785
7786 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7787 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7788 last_hdr = 1;
7789 break;
7790
7791 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7792 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7793 if (trash.len < 0)
7794 return -1;
7795
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7796 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7797 /* FIXME: if the user adds a newline in the replacement, the
7798 * index will not be recalculated for now, and the new line
7799 * will not be counted as a new header.
7800 */
7801
7802 cur_end += delta;
7803 cur_next += delta;
7804 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7805 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7806 break;
7807
7808 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7809 delta = buffer_replace2(rtr->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7810 cur_next += delta;
7811
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7812 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7813 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7814 txn->hdr_idx.used--;
7815 cur_hdr->len = 0;
7816 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7817 cur_idx = old_idx;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7818 break;
7819
7820 }
7821 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7822
7823 /* keep the link from this header to next one in case of later
7824 * removal of next header.
7825 */
7826 old_idx = cur_idx;
7827 }
7828 return 0;
7829}
7830
7831
7832/* Apply the filter to the status line in the response buffer <rtr>.
7833 * Returns 0 if nothing has been done, 1 if the filter has been applied,
7834 * or -1 if a replacement resulted in an invalid status line.
7835 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7836int 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]7837{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7838 char *cur_ptr, *cur_end;
7839 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7840 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7841 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7842
7843
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7844 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7845 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7846 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7847 (exp->action == ACT_ALLOW ||
7848 exp->action == ACT_DENY))
7849 return 0;
7850 else if (exp->action == ACT_REMOVE)
7851 return 0;
7852
7853 done = 0;
7854
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7855 cur_ptr = rtr->buf->p;
Willy Tarreau1ba0e5f2010-06-07 13:57:32 +0200[diff] [blame]7856 cur_end = cur_ptr + txn->rsp.sl.st.l;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7857
7858 /* Now we have the status line between cur_ptr and cur_end */
7859
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7860 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]7861 switch (exp->action) {
7862 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7863 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7864 done = 1;
7865 break;
7866
7867 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7868 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7869 done = 1;
7870 break;
7871
7872 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7873 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7874 if (trash.len < 0)
7875 return -1;
7876
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7877 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7878 /* FIXME: if the user adds a newline in the replacement, the
7879 * index will not be recalculated for now, and the new line
7880 * will not be counted as a new header.
7881 */
7882
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7883 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7884 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7885 cur_end = (char *)http_parse_stsline(&txn->rsp,
Willy Tarreau02785762007-04-03 14:45:44 +0200[diff] [blame]7886 HTTP_MSG_RPVER,
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7887 cur_ptr, cur_end + 1,
7888 NULL, NULL);
7889 if (unlikely(!cur_end))
7890 return -1;
7891
7892 /* we have a full respnse and we know that we have either a CR
7893 * or an LF at <ptr>.
7894 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7895 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]7896 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]7897 /* there is no point trying this regex on headers */
7898 return 1;
7899 }
7900 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7901 return done;
7902}
7903
7904
7905
7906/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7907 * 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]7908 * Returns 0 if everything is alright, or -1 in case a replacement lead to an
7909 * unparsable response.
7910 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7911int apply_filters_to_response(struct stream *s, struct channel *rtr, struct proxy *px)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7912{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7913 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7914 struct http_txn *txn = s->txn;
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7915 struct hdr_exp *exp;
7916
7917 for (exp = px->rsp_exp; exp; exp = exp->next) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7918 int ret;
7919
7920 /*
7921 * The interleaving of transformations and verdicts
7922 * makes it difficult to decide to continue or stop
7923 * the evaluation.
7924 */
7925
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7926 if (txn->flags & TX_SVDENY)
7927 break;
7928
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7929 if ((txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7930 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
7931 exp->action == ACT_PASS)) {
7932 exp = exp->next;
7933 continue;
7934 }
7935
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7936 /* if this filter had a condition, evaluate it now and skip to
7937 * next filter if the condition does not match.
7938 */
7939 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7940 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]7941 ret = acl_pass(ret);
7942 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
7943 ret = !ret;
7944 if (!ret)
7945 continue;
7946 }
7947
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7948 /* Apply the filter to the status line. */
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7949 ret = apply_filter_to_sts_line(s, rtr, exp);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7950 if (unlikely(ret < 0))
7951 return -1;
7952
7953 if (likely(ret == 0)) {
7954 /* The filter did not match the response, it can be
7955 * iterated through all headers.
7956 */
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7957 if (unlikely(apply_filter_to_resp_headers(s, rtr, exp) < 0))
7958 return -1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7959 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7960 }
7961 return 0;
7962}
7963
7964
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7965/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]7966 * Manage server-side cookies. It can impact performance by about 2% so it is
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7967 * desirable to call it only when needed. This function is also used when we
7968 * just need to know if there is a cookie (eg: for check-cache).
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7969 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7970void manage_server_side_cookies(struct stream *s, struct channel *res)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7971{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7972 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7973 struct session *sess = s->sess;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7974 struct server *srv;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7975 int is_cookie2;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7976 int cur_idx, old_idx, delta;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7977 char *hdr_beg, *hdr_end, *hdr_next;
7978 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7979
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7980 /* Iterate through the headers.
7981 * we start with the start line.
7982 */
7983 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7984 hdr_next = res->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7985
7986 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
7987 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7988 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7989
7990 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7991 hdr_beg = hdr_next;
7992 hdr_end = hdr_beg + cur_hdr->len;
7993 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7994
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7995 /* We have one full header between hdr_beg and hdr_end, and the
7996 * next header starts at hdr_next. We're only interested in
7997 * "Set-Cookie" and "Set-Cookie2" headers.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7998 */
7999
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8000 is_cookie2 = 0;
8001 prev = hdr_beg + 10;
8002 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie", 10);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8003 if (!val) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8004 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie2", 11);
8005 if (!val) {
8006 old_idx = cur_idx;
8007 continue;
8008 }
8009 is_cookie2 = 1;
8010 prev = hdr_beg + 11;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8011 }
8012
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8013 /* OK, right now we know we have a Set-Cookie* at hdr_beg, and
8014 * <prev> points to the colon.
8015 */
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]8016 txn->flags |= TX_SCK_PRESENT;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8017
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8018 /* Maybe we only wanted to see if there was a Set-Cookie (eg:
8019 * check-cache is enabled) and we are not interested in checking
8020 * them. Warning, the cookie capture is declared in the frontend.
Willy Tarreaufd39dda2008-10-17 12:01:58 +0200[diff] [blame]8021 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]8022 if (s->be->cookie_name == NULL && sess->fe->capture_name == NULL)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8023 return;
8024
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8025 /* OK so now we know we have to process this response cookie.
8026 * The format of the Set-Cookie header is slightly different
8027 * from the format of the Cookie header in that it does not
8028 * support the comma as a cookie delimiter (thus the header
8029 * cannot be folded) because the Expires attribute described in
8030 * the original Netscape's spec may contain an unquoted date
8031 * with a comma inside. We have to live with this because
8032 * many browsers don't support Max-Age and some browsers don't
8033 * support quoted strings. However the Set-Cookie2 header is
8034 * clean.
8035 *
8036 * We have to keep multiple pointers in order to support cookie
8037 * removal at the beginning, middle or end of header without
8038 * corrupting the header (in case of set-cookie2). A special
8039 * pointer, <scav> points to the beginning of the set-cookie-av
8040 * fields after the first semi-colon. The <next> pointer points
8041 * either to the end of line (set-cookie) or next unquoted comma
8042 * (set-cookie2). All of these headers are valid :
8043 *
8044 * Set-Cookie: NAME1 = VALUE 1 ; Secure; Path="/"\r\n
8045 * Set-Cookie:NAME=VALUE; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
8046 * Set-Cookie: NAME = VALUE ; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
8047 * Set-Cookie2: NAME1 = VALUE 1 ; Max-Age=0, NAME2=VALUE2; Discard\r\n
8048 * | | | | | | | | | |
8049 * | | | | | | | | +-> next hdr_end <--+
8050 * | | | | | | | +------------> scav
8051 * | | | | | | +--------------> val_end
8052 * | | | | | +--------------------> val_beg
8053 * | | | | +----------------------> equal
8054 * | | | +------------------------> att_end
8055 * | | +----------------------------> att_beg
8056 * | +------------------------------> prev
8057 * +-----------------------------------------> hdr_beg
8058 */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8059
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8060 for (; prev < hdr_end; prev = next) {
8061 /* Iterate through all cookies on this line */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8062
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8063 /* find att_beg */
8064 att_beg = prev + 1;
8065 while (att_beg < hdr_end && http_is_spht[(unsigned char)*att_beg])
8066 att_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8067
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8068 /* find att_end : this is the first character after the last non
8069 * space before the equal. It may be equal to hdr_end.
8070 */
8071 equal = att_end = att_beg;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8072
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8073 while (equal < hdr_end) {
8074 if (*equal == '=' || *equal == ';' || (is_cookie2 && *equal == ','))
8075 break;
8076 if (http_is_spht[(unsigned char)*equal++])
8077 continue;
8078 att_end = equal;
8079 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8080
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8081 /* here, <equal> points to '=', a delimitor or the end. <att_end>
8082 * is between <att_beg> and <equal>, both may be identical.
8083 */
8084
8085 /* look for end of cookie if there is an equal sign */
8086 if (equal < hdr_end && *equal == '=') {
8087 /* look for the beginning of the value */
8088 val_beg = equal + 1;
8089 while (val_beg < hdr_end && http_is_spht[(unsigned char)*val_beg])
8090 val_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8091
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8092 /* find the end of the value, respecting quotes */
8093 next = find_cookie_value_end(val_beg, hdr_end);
8094
8095 /* make val_end point to the first white space or delimitor after the value */
8096 val_end = next;
8097 while (val_end > val_beg && http_is_spht[(unsigned char)*(val_end - 1)])
8098 val_end--;
8099 } else {
8100 /* <equal> points to next comma, semi-colon or EOL */
8101 val_beg = val_end = next = equal;
8102 }
8103
8104 if (next < hdr_end) {
8105 /* Set-Cookie2 supports multiple cookies, and <next> points to
8106 * a colon or semi-colon before the end. So skip all attr-value
8107 * pairs and look for the next comma. For Set-Cookie, since
8108 * commas are permitted in values, skip to the end.
8109 */
8110 if (is_cookie2)
8111 next = find_hdr_value_end(next, hdr_end);
8112 else
8113 next = hdr_end;
8114 }
8115
8116 /* Now everything is as on the diagram above */
8117
8118 /* Ignore cookies with no equal sign */
8119 if (equal == val_end)
8120 continue;
8121
8122 /* If there are spaces around the equal sign, we need to
8123 * strip them otherwise we'll get trouble for cookie captures,
8124 * or even for rewrites. Since this happens extremely rarely,
8125 * it does not hurt performance.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8126 */
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8127 if (unlikely(att_end != equal || val_beg > equal + 1)) {
8128 int stripped_before = 0;
8129 int stripped_after = 0;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8130
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8131 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8132 stripped_before = buffer_replace2(res->buf, att_end, equal, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8133 equal += stripped_before;
8134 val_beg += stripped_before;
8135 }
8136
8137 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8138 stripped_after = buffer_replace2(res->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8139 val_beg += stripped_after;
8140 stripped_before += stripped_after;
8141 }
8142
8143 val_end += stripped_before;
8144 next += stripped_before;
8145 hdr_end += stripped_before;
8146 hdr_next += stripped_before;
8147 cur_hdr->len += stripped_before;
Willy Tarreau1fc1f452011-04-07 22:35:37 +0200[diff] [blame]8148 http_msg_move_end(&txn->rsp, stripped_before);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8149 }
8150
8151 /* First, let's see if we want to capture this cookie. We check
8152 * that we don't already have a server side cookie, because we
8153 * can only capture one. Also as an optimisation, we ignore
8154 * cookies shorter than the declared name.
8155 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8156 if (sess->fe->capture_name != NULL &&
Willy Tarreau3bac9ff2007-03-18 17:31:28 +0100[diff] [blame]8157 txn->srv_cookie == NULL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8158 (val_end - att_beg >= sess->fe->capture_namelen) &&
8159 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8160 int log_len = val_end - att_beg;
Willy Tarreau086b3b42007-05-13 21:45:51 +0200[diff] [blame]8161 if ((txn->srv_cookie = pool_alloc2(pool2_capture)) == NULL) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8162 Alert("HTTP logging : out of memory.\n");
8163 }
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]8164 else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8165 if (log_len > sess->fe->capture_len)
8166 log_len = sess->fe->capture_len;
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]8167 memcpy(txn->srv_cookie, att_beg, log_len);
8168 txn->srv_cookie[log_len] = 0;
8169 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8170 }
8171
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8172 srv = objt_server(s->target);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8173 /* now check if we need to process it for persistence */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]8174 if (!(s->flags & SF_IGNORE_PRST) &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8175 (att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
8176 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]8177 /* assume passive cookie by default */
8178 txn->flags &= ~TX_SCK_MASK;
8179 txn->flags |= TX_SCK_FOUND;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8180
8181 /* If the cookie is in insert mode on a known server, we'll delete
8182 * this occurrence because we'll insert another one later.
8183 * 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]8184 * a direct access.
8185 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8186 if (s->be->ck_opts & PR_CK_PSV) {
Willy Tarreauba4c5be2010-10-23 12:46:42 +0200[diff] [blame]8187 /* The "preserve" flag was set, we don't want to touch the
8188 * server's cookie.
8189 */
8190 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8191 else if ((srv && (s->be->ck_opts & PR_CK_INS)) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]8192 ((s->flags & SF_DIRECT) && (s->be->ck_opts & PR_CK_IND))) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8193 /* this cookie must be deleted */
8194 if (*prev == ':' && next == hdr_end) {
8195 /* whole header */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8196 delta = buffer_replace2(res->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8197 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
8198 txn->hdr_idx.used--;
8199 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]8200 cur_idx = old_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8201 hdr_next += delta;
8202 http_msg_move_end(&txn->rsp, delta);
8203 /* note: while both invalid now, <next> and <hdr_end>
8204 * are still equal, so the for() will stop as expected.
8205 */
8206 } else {
8207 /* just remove the value */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8208 int delta = del_hdr_value(res->buf, &prev, next);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8209 next = prev;
8210 hdr_end += delta;
8211 hdr_next += delta;
8212 cur_hdr->len += delta;
8213 http_msg_move_end(&txn->rsp, delta);
8214 }
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]8215 txn->flags &= ~TX_SCK_MASK;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8216 txn->flags |= TX_SCK_DELETED;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8217 /* and go on with next cookie */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8218 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8219 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_RW)) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8220 /* replace bytes val_beg->val_end with the cookie name associated
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8221 * with this server since we know it.
8222 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8223 delta = buffer_replace2(res->buf, val_beg, val_end, srv->cookie, srv->cklen);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8224 next += delta;
8225 hdr_end += delta;
8226 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8227 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]8228 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8229
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]8230 txn->flags &= ~TX_SCK_MASK;
8231 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8232 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8233 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_PFX)) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8234 /* insert the cookie name associated with this server
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8235 * before existing cookie, and insert a delimiter between them..
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8236 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8237 delta = buffer_replace2(res->buf, val_beg, val_beg, srv->cookie, srv->cklen + 1);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8238 next += delta;
8239 hdr_end += delta;
8240 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8241 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]8242 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8243
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]8244 val_beg[srv->cklen] = COOKIE_DELIM;
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]8245 txn->flags &= ~TX_SCK_MASK;
8246 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8247 }
8248 }
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8249 /* that's done for this cookie, check the next one on the same
8250 * line when next != hdr_end (only if is_cookie2).
8251 */
8252 }
8253 /* check next header */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8254 old_idx = cur_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8255 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8256}
8257
8258
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8259/*
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8260 * Check if response is cacheable or not. Updates s->flags.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8261 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8262void check_response_for_cacheability(struct stream *s, struct channel *rtr)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8263{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8264 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8265 char *p1, *p2;
8266
8267 char *cur_ptr, *cur_end, *cur_next;
8268 int cur_idx;
8269
Willy Tarreau5df51872007-11-25 16:20:08 +0100[diff] [blame]8270 if (!(txn->flags & TX_CACHEABLE))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8271 return;
8272
8273 /* Iterate through the headers.
8274 * we start with the start line.
8275 */
8276 cur_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8277 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8278
8279 while ((cur_idx = txn->hdr_idx.v[cur_idx].next)) {
8280 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8281 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8282
8283 cur_hdr = &txn->hdr_idx.v[cur_idx];
8284 cur_ptr = cur_next;
8285 cur_end = cur_ptr + cur_hdr->len;
8286 cur_next = cur_end + cur_hdr->cr + 1;
8287
8288 /* We have one full header between cur_ptr and cur_end, and the
8289 * next header starts at cur_next. We're only interested in
8290 * "Cookie:" headers.
8291 */
8292
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8293 val = http_header_match2(cur_ptr, cur_end, "Pragma", 6);
8294 if (val) {
8295 if ((cur_end - (cur_ptr + val) >= 8) &&
8296 strncasecmp(cur_ptr + val, "no-cache", 8) == 0) {
8297 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
8298 return;
8299 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8300 }
8301
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8302 val = http_header_match2(cur_ptr, cur_end, "Cache-control", 13);
8303 if (!val)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8304 continue;
8305
8306 /* OK, right now we know we have a cache-control header at cur_ptr */
8307
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8308 p1 = cur_ptr + val; /* first non-space char after 'cache-control:' */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8309
8310 if (p1 >= cur_end) /* no more info */
8311 continue;
8312
8313 /* p1 is at the beginning of the value */
8314 p2 = p1;
8315
Willy Tarreau8f8e6452007-06-17 21:51:38 +0200[diff] [blame]8316 while (p2 < cur_end && *p2 != '=' && *p2 != ',' && !isspace((unsigned char)*p2))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8317 p2++;
8318
8319 /* we have a complete value between p1 and p2 */
8320 if (p2 < cur_end && *p2 == '=') {
8321 /* we have something of the form no-cache="set-cookie" */
8322 if ((cur_end - p1 >= 21) &&
8323 strncasecmp(p1, "no-cache=\"set-cookie", 20) == 0
8324 && (p1[20] == '"' || p1[20] == ','))
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8325 txn->flags &= ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8326 continue;
8327 }
8328
8329 /* OK, so we know that either p2 points to the end of string or to a comma */
8330 if (((p2 - p1 == 7) && strncasecmp(p1, "private", 7) == 0) ||
Willy Tarreau5b15f902013-07-04 12:46:56 +0200[diff] [blame]8331 ((p2 - p1 == 8) && strncasecmp(p1, "no-cache", 8) == 0) ||
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8332 ((p2 - p1 == 8) && strncasecmp(p1, "no-store", 8) == 0) ||
8333 ((p2 - p1 == 9) && strncasecmp(p1, "max-age=0", 9) == 0) ||
8334 ((p2 - p1 == 10) && strncasecmp(p1, "s-maxage=0", 10) == 0)) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8335 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8336 return;
8337 }
8338
8339 if ((p2 - p1 == 6) && strncasecmp(p1, "public", 6) == 0) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8340 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8341 continue;
8342 }
8343 }
8344}
8345
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8346
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8347/*
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]8348 * 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]8349 * for the current backend.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8350 *
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]8351 * 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]8352 * uri_auth field is valid.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8353 *
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]8354 * Returns 1 if stats should be provided, otherwise 0.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8355 */
Willy Tarreau295a8372011-03-10 11:25:07 +0100[diff] [blame]8356int stats_check_uri(struct stream_interface *si, struct http_txn *txn, struct proxy *backend)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8357{
8358 struct uri_auth *uri_auth = backend->uri_auth;
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]8359 struct http_msg *msg = &txn->req;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8360 const char *uri = msg->chn->buf->p+ msg->sl.rq.u;
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8361
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]8362 if (!uri_auth)
8363 return 0;
8364
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]8365 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]8366 return 0;
8367
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]8368 /* check URI size */
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]8369 if (uri_auth->uri_len > msg->sl.rq.u_l)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8370 return 0;
8371
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]8372 if (memcmp(uri, uri_auth->uri_prefix, uri_auth->uri_len) != 0)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8373 return 0;
8374
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8375 return 1;
8376}
8377
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8378/*
8379 * Capture a bad request or response and archive it in the proxy's structure.
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8380 * By default it tries to report the error position as msg->err_pos. However if
8381 * this one is not set, it will then report msg->next, which is the last known
8382 * parsing point. The function is able to deal with wrapping buffers. It always
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8383 * displays buffers as a contiguous area starting at buf->p.
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8384 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8385void http_capture_bad_message(struct error_snapshot *es, struct stream *s,
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]8386 struct http_msg *msg,
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]8387 enum ht_state state, struct proxy *other_end)
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8388{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8389 struct session *sess = strm_sess(s);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8390 struct channel *chn = msg->chn;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8391 int len1, len2;
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]8392
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]8393 es->len = MIN(chn->buf->i, global.tune.bufsize);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8394 len1 = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8395 len1 = MIN(len1, es->len);
8396 len2 = es->len - len1; /* remaining data if buffer wraps */
8397
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]8398 if (!es->buf)
8399 es->buf = malloc(global.tune.bufsize);
8400
8401 if (es->buf) {
8402 memcpy(es->buf, chn->buf->p, len1);
8403 if (len2)
8404 memcpy(es->buf + len1, chn->buf->data, len2);
8405 }
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]8406
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8407 if (msg->err_pos >= 0)
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8408 es->pos = msg->err_pos;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]8409 else
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8410 es->pos = msg->next;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]8411
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8412 es->when = date; // user-visible date
8413 es->sid = s->uniq_id;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]8414 es->srv = objt_server(s->target);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8415 es->oe = other_end;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8416 if (objt_conn(sess->origin))
8417 es->src = __objt_conn(sess->origin)->addr.from;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]8418 else
8419 memset(&es->src, 0, sizeof(es->src));
8420
Willy Tarreau078272e2010-12-12 12:46:33 +0100[diff] [blame]8421 es->state = state;
Willy Tarreau10479e42010-12-12 14:00:34 +0100[diff] [blame]8422 es->ev_id = error_snapshot_id++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8423 es->b_flags = chn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]8424 es->s_flags = s->flags;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8425 es->t_flags = s->txn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]8426 es->m_flags = msg->flags;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8427 es->b_out = chn->buf->o;
8428 es->b_wrap = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8429 es->b_tot = chn->total;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]8430 es->m_clen = msg->chunk_len;
8431 es->m_blen = msg->body_len;
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8432}
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8433
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8434/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
8435 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
8436 * performed over the whole headers. Otherwise it must contain a valid header
8437 * context, initialised with ctx->idx=0 for the first lookup in a series. If
8438 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
8439 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
8440 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8441 * -1. The value fetch stops at commas, so this function is suited for use with
8442 * list headers.
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8443 * The return value is 0 if nothing was found, or non-zero otherwise.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8444 */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]8445unsigned int http_get_hdr(const struct http_msg *msg, const char *hname, int hlen,
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8446 struct hdr_idx *idx, int occ,
8447 struct hdr_ctx *ctx, char **vptr, int *vlen)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8448{
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8449 struct hdr_ctx local_ctx;
8450 char *ptr_hist[MAX_HDR_HISTORY];
8451 int len_hist[MAX_HDR_HISTORY];
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8452 unsigned int hist_ptr;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8453 int found;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8454
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8455 if (!ctx) {
8456 local_ctx.idx = 0;
8457 ctx = &local_ctx;
8458 }
8459
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8460 if (occ >= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8461 /* search from the beginning */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8462 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8463 occ--;
8464 if (occ <= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8465 *vptr = ctx->line + ctx->val;
8466 *vlen = ctx->vlen;
8467 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8468 }
8469 }
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8470 return 0;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8471 }
8472
8473 /* negative occurrence, we scan all the list then walk back */
8474 if (-occ > MAX_HDR_HISTORY)
8475 return 0;
8476
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8477 found = hist_ptr = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8478 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8479 ptr_hist[hist_ptr] = ctx->line + ctx->val;
8480 len_hist[hist_ptr] = ctx->vlen;
8481 if (++hist_ptr >= MAX_HDR_HISTORY)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8482 hist_ptr = 0;
8483 found++;
8484 }
8485 if (-occ > found)
8486 return 0;
8487 /* 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]8488 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
8489 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
8490 * to remain in the 0..9 range.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8491 */
Willy Tarreau67dad272013-06-12 22:27:44 +0200[diff] [blame]8492 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8493 if (hist_ptr >= MAX_HDR_HISTORY)
8494 hist_ptr -= MAX_HDR_HISTORY;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8495 *vptr = ptr_hist[hist_ptr];
8496 *vlen = len_hist[hist_ptr];
8497 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8498}
8499
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8500/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
8501 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
8502 * performed over the whole headers. Otherwise it must contain a valid header
8503 * context, initialised with ctx->idx=0 for the first lookup in a series. If
8504 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
8505 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
8506 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
8507 * -1. This function differs from http_get_hdr() in that it only returns full
8508 * line header values and does not stop at commas.
8509 * The return value is 0 if nothing was found, or non-zero otherwise.
8510 */
8511unsigned int http_get_fhdr(const struct http_msg *msg, const char *hname, int hlen,
8512 struct hdr_idx *idx, int occ,
8513 struct hdr_ctx *ctx, char **vptr, int *vlen)
8514{
8515 struct hdr_ctx local_ctx;
8516 char *ptr_hist[MAX_HDR_HISTORY];
8517 int len_hist[MAX_HDR_HISTORY];
8518 unsigned int hist_ptr;
8519 int found;
8520
8521 if (!ctx) {
8522 local_ctx.idx = 0;
8523 ctx = &local_ctx;
8524 }
8525
8526 if (occ >= 0) {
8527 /* search from the beginning */
8528 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
8529 occ--;
8530 if (occ <= 0) {
8531 *vptr = ctx->line + ctx->val;
8532 *vlen = ctx->vlen;
8533 return 1;
8534 }
8535 }
8536 return 0;
8537 }
8538
8539 /* negative occurrence, we scan all the list then walk back */
8540 if (-occ > MAX_HDR_HISTORY)
8541 return 0;
8542
8543 found = hist_ptr = 0;
8544 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
8545 ptr_hist[hist_ptr] = ctx->line + ctx->val;
8546 len_hist[hist_ptr] = ctx->vlen;
8547 if (++hist_ptr >= MAX_HDR_HISTORY)
8548 hist_ptr = 0;
8549 found++;
8550 }
8551 if (-occ > found)
8552 return 0;
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]8553
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8554 /* 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]8555 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
8556 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
8557 * to remain in the 0..9 range.
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8558 */
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]8559 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8560 if (hist_ptr >= MAX_HDR_HISTORY)
8561 hist_ptr -= MAX_HDR_HISTORY;
8562 *vptr = ptr_hist[hist_ptr];
8563 *vlen = len_hist[hist_ptr];
8564 return 1;
8565}
8566
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]8567/*
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]8568 * Print a debug line with a header. Always stop at the first CR or LF char,
8569 * so it is safe to pass it a full buffer if needed. If <err> is not NULL, an
8570 * arrow is printed after the line which contains the pointer.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8571 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8572void debug_hdr(const char *dir, struct stream *s, const char *start, const char *end)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8573{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8574 struct session *sess = strm_sess(s);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]8575 int max;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8576
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8577 chunk_printf(&trash, "%08x:%s.%s[%04x:%04x]: ", s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]8578 dir,
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8579 objt_conn(sess->origin) ? (unsigned short)objt_conn(sess->origin)->t.sock.fd : -1,
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]8580 objt_conn(s->si[1].end) ? (unsigned short)objt_conn(s->si[1].end)->t.sock.fd : -1);
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]8581
8582 for (max = 0; start + max < end; max++)
8583 if (start[max] == '\r' || start[max] == '\n')
8584 break;
8585
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]8586 UBOUND(max, trash.size - trash.len - 3);
8587 trash.len += strlcpy2(trash.str + trash.len, start, max + 1);
8588 trash.str[trash.len++] = '\n';
Willy Tarreau89efaed2013-12-13 15:14:55 +0100[diff] [blame]8589 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8590}
8591
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8592
8593/* Allocate a new HTTP transaction for stream <s> unless there is one already.
8594 * The hdr_idx is allocated as well. In case of allocation failure, everything
8595 * allocated is freed and NULL is returned. Otherwise the new transaction is
8596 * assigned to the stream and returned.
8597 */
8598struct http_txn *http_alloc_txn(struct stream *s)
8599{
8600 struct http_txn *txn = s->txn;
8601
8602 if (txn)
8603 return txn;
8604
8605 txn = pool_alloc2(pool2_http_txn);
8606 if (!txn)
8607 return txn;
8608
8609 txn->hdr_idx.size = global.tune.max_http_hdr;
8610 txn->hdr_idx.v = pool_alloc2(pool2_hdr_idx);
8611 if (!txn->hdr_idx.v) {
8612 pool_free2(pool2_http_txn, txn);
8613 return NULL;
8614 }
8615
8616 s->txn = txn;
8617 return txn;
8618}
8619
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8620void http_txn_reset_req(struct http_txn *txn)
8621{
8622 txn->req.flags = 0;
8623 txn->req.sol = txn->req.eol = txn->req.eoh = 0; /* relative to the buffer */
8624 txn->req.next = 0;
8625 txn->req.chunk_len = 0LL;
8626 txn->req.body_len = 0LL;
8627 txn->req.msg_state = HTTP_MSG_RQBEFORE; /* at the very beginning of the request */
8628}
8629
8630void http_txn_reset_res(struct http_txn *txn)
8631{
8632 txn->rsp.flags = 0;
8633 txn->rsp.sol = txn->rsp.eol = txn->rsp.eoh = 0; /* relative to the buffer */
8634 txn->rsp.next = 0;
8635 txn->rsp.chunk_len = 0LL;
8636 txn->rsp.body_len = 0LL;
8637 txn->rsp.msg_state = HTTP_MSG_RPBEFORE; /* at the very beginning of the response */
8638}
8639
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8640/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8641 * Initialize a new HTTP transaction for stream <s>. It is assumed that all
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8642 * the required fields are properly allocated and that we only need to (re)init
8643 * them. This should be used before processing any new request.
8644 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8645void http_init_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8646{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8647 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8648 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8649
8650 txn->flags = 0;
8651 txn->status = -1;
8652
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]8653 txn->cookie_first_date = 0;
8654 txn->cookie_last_date = 0;
8655
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8656 txn->srv_cookie = NULL;
8657 txn->cli_cookie = NULL;
8658 txn->uri = NULL;
8659
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8660 http_txn_reset_req(txn);
8661 http_txn_reset_res(txn);
8662
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8663 txn->req.chn = &s->req;
8664 txn->rsp.chn = &s->res;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8665
8666 txn->auth.method = HTTP_AUTH_UNKNOWN;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8667
8668 txn->req.err_pos = txn->rsp.err_pos = -2; /* block buggy requests/responses */
8669 if (fe->options2 & PR_O2_REQBUG_OK)
8670 txn->req.err_pos = -1; /* let buggy requests pass */
8671
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8672 if (txn->hdr_idx.v)
8673 hdr_idx_init(&txn->hdr_idx);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]8674
8675 vars_init(&s->vars_txn, SCOPE_TXN);
8676 vars_init(&s->vars_reqres, SCOPE_REQ);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8677}
8678
8679/* to be used at the end of a transaction */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8680void http_end_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8681{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8682 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8683 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8684
8685 /* these ones will have been dynamically allocated */
8686 pool_free2(pool2_requri, txn->uri);
8687 pool_free2(pool2_capture, txn->cli_cookie);
8688 pool_free2(pool2_capture, txn->srv_cookie);
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]8689 pool_free2(pool2_uniqueid, s->unique_id);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8690
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]8691 s->unique_id = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8692 txn->uri = NULL;
8693 txn->srv_cookie = NULL;
8694 txn->cli_cookie = NULL;
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8695
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8696 if (s->req_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8697 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8698 for (h = fe->req_cap; h; h = h->next)
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8699 pool_free2(h->pool, s->req_cap[h->index]);
8700 memset(s->req_cap, 0, fe->nb_req_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8701 }
8702
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8703 if (s->res_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8704 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8705 for (h = fe->rsp_cap; h; h = h->next)
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8706 pool_free2(h->pool, s->res_cap[h->index]);
8707 memset(s->res_cap, 0, fe->nb_rsp_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8708 }
8709
Willy Tarreau6204cd92016-03-10 16:33:04 +0100[diff] [blame]8710 vars_prune(&s->vars_txn, s->sess, s);
8711 vars_prune(&s->vars_reqres, s->sess, s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8712}
8713
8714/* to be used at the end of a transaction to prepare a new one */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8715void http_reset_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8716{
8717 http_end_txn(s);
8718 http_init_txn(s);
8719
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]8720 /* reinitialise the current rule list pointer to NULL. We are sure that
8721 * any rulelist match the NULL pointer.
8722 */
8723 s->current_rule_list = NULL;
8724
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8725 s->be = strm_fe(s);
8726 s->logs.logwait = strm_fe(s)->to_log;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]8727 s->logs.level = 0;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8728 stream_del_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]8729 s->target = NULL;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8730 /* re-init store persistence */
8731 s->store_count = 0;
Willy Tarreau1f0da242014-01-25 11:01:50 +0100[diff] [blame]8732 s->uniq_id = global.req_count++;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8733
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8734 s->pend_pos = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8735
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8736 s->req.flags |= CF_READ_DONTWAIT; /* one read is usually enough */
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8737
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8738 /* We must trim any excess data from the response buffer, because we
8739 * may have blocked an invalid response from a server that we don't
8740 * want to accidentely forward once we disable the analysers, nor do
8741 * we want those data to come along with next response. A typical
8742 * example of such data would be from a buggy server responding to
8743 * a HEAD with some data, or sending more than the advertised
8744 * content-length.
8745 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8746 if (unlikely(s->res.buf->i))
8747 s->res.buf->i = 0;
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8748
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8749 s->req.rto = strm_fe(s)->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8750 s->req.wto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8751
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8752 s->res.rto = TICK_ETERNITY;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8753 s->res.wto = strm_fe(s)->timeout.client;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8754
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8755 s->req.rex = TICK_ETERNITY;
8756 s->req.wex = TICK_ETERNITY;
8757 s->req.analyse_exp = TICK_ETERNITY;
8758 s->res.rex = TICK_ETERNITY;
8759 s->res.wex = TICK_ETERNITY;
8760 s->res.analyse_exp = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8761}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8762
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8763void free_http_res_rules(struct list *r)
8764{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8765 struct act_rule *tr, *pr;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8766
8767 list_for_each_entry_safe(pr, tr, r, list) {
8768 LIST_DEL(&pr->list);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8769 regex_free(&pr->arg.hdr_add.re);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8770 free(pr);
8771 }
8772}
8773
8774void free_http_req_rules(struct list *r)
8775{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8776 struct act_rule *tr, *pr;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8777
8778 list_for_each_entry_safe(pr, tr, r, list) {
8779 LIST_DEL(&pr->list);
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8780 if (pr->action == ACT_HTTP_REQ_AUTH)
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8781 free(pr->arg.auth.realm);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8782
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8783 regex_free(&pr->arg.hdr_add.re);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8784 free(pr);
8785 }
8786}
8787
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8788/* parse an "http-request" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8789struct 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]8790{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8791 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8792 struct action_kw *custom = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8793 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8794 char *error;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8795
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]8796 rule = calloc(1, sizeof(*rule));
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8797 if (!rule) {
8798 Alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8799 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8800 }
8801
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8802 rule->deny_status = HTTP_ERR_403;
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8803 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8804 rule->action = ACT_ACTION_ALLOW;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8805 cur_arg = 1;
Willy Tarreau5bd67592014-04-28 22:00:46 +0200[diff] [blame]8806 } else if (!strcmp(args[0], "deny") || !strcmp(args[0], "block")) {
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8807 int code;
8808 int hc;
8809
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8810 rule->action = ACT_ACTION_DENY;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8811 cur_arg = 1;
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8812 if (strcmp(args[cur_arg], "deny_status") == 0) {
8813 cur_arg++;
8814 if (!args[cur_arg]) {
8815 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing status code.\n",
8816 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
8817 goto out_err;
8818 }
8819
8820 code = atol(args[cur_arg]);
8821 cur_arg++;
8822 for (hc = 0; hc < HTTP_ERR_SIZE; hc++) {
8823 if (http_err_codes[hc] == code) {
8824 rule->deny_status = hc;
8825 break;
8826 }
8827 }
8828
8829 if (hc >= HTTP_ERR_SIZE) {
8830 Warning("parsing [%s:%d] : status code %d not handled, using default code 403.\n",
8831 file, linenum, code);
8832 }
8833 }
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]8834 } else if (!strcmp(args[0], "tarpit")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8835 rule->action = ACT_HTTP_REQ_TARPIT;
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]8836 cur_arg = 1;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8837 } else if (!strcmp(args[0], "auth")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8838 rule->action = ACT_HTTP_REQ_AUTH;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8839 cur_arg = 1;
8840
8841 while(*args[cur_arg]) {
8842 if (!strcmp(args[cur_arg], "realm")) {
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8843 rule->arg.auth.realm = strdup(args[cur_arg + 1]);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8844 cur_arg+=2;
8845 continue;
8846 } else
8847 break;
8848 }
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8849 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8850 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8851 cur_arg = 1;
8852
8853 if (!*args[cur_arg] ||
8854 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8855 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer value).\n",
8856 file, linenum, args[0]);
8857 goto out_err;
8858 }
8859 rule->arg.nice = atoi(args[cur_arg]);
8860 if (rule->arg.nice < -1024)
8861 rule->arg.nice = -1024;
8862 else if (rule->arg.nice > 1024)
8863 rule->arg.nice = 1024;
8864 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8865 } else if (!strcmp(args[0], "set-tos")) {
8866#ifdef IP_TOS
8867 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8868 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8869 cur_arg = 1;
8870
8871 if (!*args[cur_arg] ||
8872 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8873 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8874 file, linenum, args[0]);
8875 goto out_err;
8876 }
8877
8878 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8879 if (err && *err != '\0') {
8880 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8881 file, linenum, err, args[0]);
8882 goto out_err;
8883 }
8884 cur_arg++;
8885#else
8886 Alert("parsing [%s:%d]: 'http-request %s' is not supported on this platform (IP_TOS undefined).\n", file, linenum, args[0]);
8887 goto out_err;
8888#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8889 } else if (!strcmp(args[0], "set-mark")) {
8890#ifdef SO_MARK
8891 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8892 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8893 cur_arg = 1;
8894
8895 if (!*args[cur_arg] ||
8896 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8897 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8898 file, linenum, args[0]);
8899 goto out_err;
8900 }
8901
8902 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8903 if (err && *err != '\0') {
8904 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8905 file, linenum, err, args[0]);
8906 goto out_err;
8907 }
8908 cur_arg++;
8909 global.last_checks |= LSTCHK_NETADM;
8910#else
8911 Alert("parsing [%s:%d]: 'http-request %s' is not supported on this platform (SO_MARK undefined).\n", file, linenum, args[0]);
8912 goto out_err;
8913#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8914 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8915 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8916 cur_arg = 1;
8917
8918 if (!*args[cur_arg] ||
8919 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8920 bad_log_level:
8921 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (log level name or 'silent').\n",
8922 file, linenum, args[0]);
8923 goto out_err;
8924 }
8925 if (strcmp(args[cur_arg], "silent") == 0)
8926 rule->arg.loglevel = -1;
8927 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
8928 goto bad_log_level;
8929 cur_arg++;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8930 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8931 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8932 cur_arg = 1;
8933
Willy Tarreau8d1c5162013-04-03 14:13:58 +0200[diff] [blame]8934 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8935 (*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]8936 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8937 file, linenum, args[0]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8938 goto out_err;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8939 }
8940
8941 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8942 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8943 LIST_INIT(&rule->arg.hdr_add.fmt);
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]8944
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8945 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]8946 parse_logformat_string(args[cur_arg + 1], proxy, &rule->arg.hdr_add.fmt, LOG_OPT_HTTP,
Thierry FOURNIEReeaa9512014-02-11 14:00:19 +0100[diff] [blame]8947 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
8948 file, linenum);
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8949 free(proxy->conf.lfs_file);
8950 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8951 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8952 cur_arg += 2;
Willy Tarreaub8543922014-06-17 18:58:26 +0200[diff] [blame]8953 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8954 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8955 cur_arg = 1;
8956
8957 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann92df3702014-06-24 11:10:00 +0200[diff] [blame]8958 (*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]8959 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 3 arguments.\n",
8960 file, linenum, args[0]);
8961 goto out_err;
8962 }
8963
8964 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8965 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8966 LIST_INIT(&rule->arg.hdr_add.fmt);
8967
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8968 error = NULL;
8969 if (!regex_comp(args[cur_arg + 1], &rule->arg.hdr_add.re, 1, 1, &error)) {
8970 Alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8971 args[cur_arg + 1], error);
8972 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8973 goto out_err;
8974 }
8975
8976 proxy->conf.args.ctx = ARGC_HRQ;
8977 parse_logformat_string(args[cur_arg + 2], proxy, &rule->arg.hdr_add.fmt, LOG_OPT_HTTP,
8978 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
8979 file, linenum);
8980
8981 free(proxy->conf.lfs_file);
8982 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8983 proxy->conf.lfs_line = proxy->conf.args.line;
8984 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8985 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8986 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8987 cur_arg = 1;
8988
8989 if (!*args[cur_arg] ||
8990 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8991 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8992 file, linenum, args[0]);
8993 goto out_err;
8994 }
8995
8996 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8997 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8998
8999 proxy->conf.args.ctx = ARGC_HRQ;
9000 free(proxy->conf.lfs_file);
9001 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9002 proxy->conf.lfs_line = proxy->conf.args.line;
9003 cur_arg += 1;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]9004 } else if (strncmp(args[0], "track-sc", 8) == 0 &&
9005 args[0][9] == '\0' && args[0][8] >= '0' &&
Willy Tarreaue1cfc1f2014-10-17 11:53:05 +0200[diff] [blame]9006 args[0][8] < '0' + MAX_SESS_STKCTR) { /* track-sc 0..9 */
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]9007 struct sample_expr *expr;
9008 unsigned int where;
9009 char *err = NULL;
9010
9011 cur_arg = 1;
9012 proxy->conf.args.ctx = ARGC_TRK;
9013
9014 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
9015 if (!expr) {
9016 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
9017 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
9018 free(err);
9019 goto out_err;
9020 }
9021
9022 where = 0;
9023 if (proxy->cap & PR_CAP_FE)
9024 where |= SMP_VAL_FE_HRQ_HDR;
9025 if (proxy->cap & PR_CAP_BE)
9026 where |= SMP_VAL_BE_HRQ_HDR;
9027
9028 if (!(expr->fetch->val & where)) {
9029 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule :"
9030 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
9031 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
9032 args[cur_arg-1], sample_src_names(expr->fetch->use));
9033 free(expr);
9034 goto out_err;
9035 }
9036
9037 if (strcmp(args[cur_arg], "table") == 0) {
9038 cur_arg++;
9039 if (!args[cur_arg]) {
9040 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing table name.\n",
9041 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
9042 free(expr);
9043 goto out_err;
9044 }
9045 /* we copy the table name for now, it will be resolved later */
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]9046 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]9047 cur_arg++;
9048 }
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]9049 rule->arg.trk_ctr.expr = expr;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9050 rule->action = ACT_ACTION_TRK_SC0 + args[0][8] - '0';
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9051 } else if (strcmp(args[0], "redirect") == 0) {
9052 struct redirect_rule *redir;
Willy Tarreau6d4890c2013-11-18 18:04:25 +0100[diff] [blame]9053 char *errmsg = NULL;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9054
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9055 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]9056 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
9057 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
9058 goto out_err;
9059 }
9060
9061 /* this redirect rule might already contain a parsed condition which
9062 * we'll pass to the http-request rule.
9063 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9064 rule->action = ACT_HTTP_REDIR;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9065 rule->arg.redir = redir;
9066 rule->cond = redir->cond;
9067 redir->cond = NULL;
9068 cur_arg = 2;
9069 return rule;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9070 } else if (strncmp(args[0], "add-acl", 7) == 0) {
9071 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9072 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9073 /*
9074 * '+ 8' for 'add-acl('
9075 * '- 9' for 'add-acl(' + trailing ')'
9076 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9077 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9078
9079 cur_arg = 1;
9080
9081 if (!*args[cur_arg] ||
9082 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9083 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
9084 file, linenum, args[0]);
9085 goto out_err;
9086 }
9087
9088 LIST_INIT(&rule->arg.map.key);
9089 proxy->conf.args.ctx = ARGC_HRQ;
9090 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9091 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9092 file, linenum);
9093 free(proxy->conf.lfs_file);
9094 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9095 proxy->conf.lfs_line = proxy->conf.args.line;
9096 cur_arg += 1;
9097 } else if (strncmp(args[0], "del-acl", 7) == 0) {
9098 /* http-request del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9099 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9100 /*
9101 * '+ 8' for 'del-acl('
9102 * '- 9' for 'del-acl(' + trailing ')'
9103 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9104 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9105
9106 cur_arg = 1;
9107
9108 if (!*args[cur_arg] ||
9109 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9110 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
9111 file, linenum, args[0]);
9112 goto out_err;
9113 }
9114
9115 LIST_INIT(&rule->arg.map.key);
9116 proxy->conf.args.ctx = ARGC_HRQ;
9117 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9118 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9119 file, linenum);
9120 free(proxy->conf.lfs_file);
9121 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9122 proxy->conf.lfs_line = proxy->conf.args.line;
9123 cur_arg += 1;
9124 } else if (strncmp(args[0], "del-map", 7) == 0) {
9125 /* http-request del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9126 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9127 /*
9128 * '+ 8' for 'del-map('
9129 * '- 9' for 'del-map(' + trailing ')'
9130 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9131 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9132
9133 cur_arg = 1;
9134
9135 if (!*args[cur_arg] ||
9136 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9137 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
9138 file, linenum, args[0]);
9139 goto out_err;
9140 }
9141
9142 LIST_INIT(&rule->arg.map.key);
9143 proxy->conf.args.ctx = ARGC_HRQ;
9144 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9145 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9146 file, linenum);
9147 free(proxy->conf.lfs_file);
9148 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9149 proxy->conf.lfs_line = proxy->conf.args.line;
9150 cur_arg += 1;
9151 } else if (strncmp(args[0], "set-map", 7) == 0) {
9152 /* http-request set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9153 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9154 /*
9155 * '+ 8' for 'set-map('
9156 * '- 9' for 'set-map(' + trailing ')'
9157 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9158 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9159
9160 cur_arg = 1;
9161
9162 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9163 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
9164 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
9165 file, linenum, args[0]);
9166 goto out_err;
9167 }
9168
9169 LIST_INIT(&rule->arg.map.key);
9170 LIST_INIT(&rule->arg.map.value);
9171 proxy->conf.args.ctx = ARGC_HRQ;
9172
9173 /* key pattern */
9174 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9175 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9176 file, linenum);
9177
9178 /* value pattern */
9179 parse_logformat_string(args[cur_arg + 1], proxy, &rule->arg.map.value, LOG_OPT_HTTP,
9180 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9181 file, linenum);
9182 free(proxy->conf.lfs_file);
9183 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9184 proxy->conf.lfs_line = proxy->conf.args.line;
9185
9186 cur_arg += 2;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9187 } else if (((custom = action_http_req_custom(args[0])) != NULL)) {
9188 char *errmsg = NULL;
9189 cur_arg = 1;
9190 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]9191 rule->from = ACT_F_HTTP_REQ;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]9192 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]9193 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9194 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
9195 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
9196 free(errmsg);
9197 goto out_err;
9198 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9199 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9200 action_build_list(&http_req_keywords.list, &trash);
9201 Alert("parsing [%s:%d]: 'http-request' expects 'allow', 'deny', 'auth', 'redirect', "
9202 "'tarpit', 'add-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
William Lallemand2e785f22016-05-25 01:48:42 +0200[diff] [blame]9203 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map'"
9204 "%s%s, but got '%s'%s.\n",
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9205 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9206 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9207 }
9208
9209 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
9210 struct acl_cond *cond;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]9211 char *errmsg = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9212
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]9213 if ((cond = build_acl_cond(file, linenum, proxy, args+cur_arg, &errmsg)) == NULL) {
9214 Alert("parsing [%s:%d] : error detected while parsing an 'http-request %s' condition : %s.\n",
9215 file, linenum, args[0], errmsg);
9216 free(errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9217 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9218 }
9219 rule->cond = cond;
9220 }
9221 else if (*args[cur_arg]) {
9222 Alert("parsing [%s:%d]: 'http-request %s' expects 'realm' for 'auth' or"
9223 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
9224 file, linenum, args[0], args[cur_arg]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9225 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9226 }
9227
9228 return rule;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9229 out_err:
9230 free(rule);
9231 return NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9232}
9233
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9234/* parse an "http-respose" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]9235struct 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]9236{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]9237 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]9238 struct action_kw *custom = NULL;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9239 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]9240 char *error;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9241
9242 rule = calloc(1, sizeof(*rule));
9243 if (!rule) {
9244 Alert("parsing [%s:%d]: out of memory.\n", file, linenum);
9245 goto out_err;
9246 }
9247
9248 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9249 rule->action = ACT_ACTION_ALLOW;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9250 cur_arg = 1;
9251 } else if (!strcmp(args[0], "deny")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9252 rule->action = ACT_ACTION_DENY;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9253 cur_arg = 1;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]9254 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9255 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]9256 cur_arg = 1;
9257
9258 if (!*args[cur_arg] ||
9259 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9260 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer value).\n",
9261 file, linenum, args[0]);
9262 goto out_err;
9263 }
9264 rule->arg.nice = atoi(args[cur_arg]);
9265 if (rule->arg.nice < -1024)
9266 rule->arg.nice = -1024;
9267 else if (rule->arg.nice > 1024)
9268 rule->arg.nice = 1024;
9269 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]9270 } else if (!strcmp(args[0], "set-tos")) {
9271#ifdef IP_TOS
9272 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9273 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]9274 cur_arg = 1;
9275
9276 if (!*args[cur_arg] ||
9277 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9278 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
9279 file, linenum, args[0]);
9280 goto out_err;
9281 }
9282
9283 rule->arg.tos = strtol(args[cur_arg], &err, 0);
9284 if (err && *err != '\0') {
9285 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
9286 file, linenum, err, args[0]);
9287 goto out_err;
9288 }
9289 cur_arg++;
9290#else
9291 Alert("parsing [%s:%d]: 'http-response %s' is not supported on this platform (IP_TOS undefined).\n", file, linenum, args[0]);
9292 goto out_err;
9293#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]9294 } else if (!strcmp(args[0], "set-mark")) {
9295#ifdef SO_MARK
9296 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9297 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]9298 cur_arg = 1;
9299
9300 if (!*args[cur_arg] ||
9301 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9302 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
9303 file, linenum, args[0]);
9304 goto out_err;
9305 }
9306
9307 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
9308 if (err && *err != '\0') {
9309 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
9310 file, linenum, err, args[0]);
9311 goto out_err;
9312 }
9313 cur_arg++;
9314 global.last_checks |= LSTCHK_NETADM;
9315#else
9316 Alert("parsing [%s:%d]: 'http-response %s' is not supported on this platform (SO_MARK undefined).\n", file, linenum, args[0]);
9317 goto out_err;
9318#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9319 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9320 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9321 cur_arg = 1;
9322
9323 if (!*args[cur_arg] ||
9324 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9325 bad_log_level:
9326 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (log level name or 'silent').\n",
9327 file, linenum, args[0]);
9328 goto out_err;
9329 }
9330 if (strcmp(args[cur_arg], "silent") == 0)
9331 rule->arg.loglevel = -1;
9332 else if ((rule->arg.loglevel = get_log_level(args[cur_arg] + 1)) == 0)
9333 goto bad_log_level;
9334 cur_arg++;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9335 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9336 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9337 cur_arg = 1;
9338
9339 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9340 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
9341 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
9342 file, linenum, args[0]);
9343 goto out_err;
9344 }
9345
9346 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9347 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9348 LIST_INIT(&rule->arg.hdr_add.fmt);
9349
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]9350 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]9351 parse_logformat_string(args[cur_arg + 1], proxy, &rule->arg.hdr_add.fmt, LOG_OPT_HTTP,
Thierry FOURNIEReeaa9512014-02-11 14:00:19 +0100[diff] [blame]9352 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR,
9353 file, linenum);
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9354 free(proxy->conf.lfs_file);
9355 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9356 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9357 cur_arg += 2;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9358 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9359 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9360 cur_arg = 1;
9361
9362 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann12cb00b2014-08-08 17:29:06 +0200[diff] [blame]9363 (*args[cur_arg+3] && strcmp(args[cur_arg+3], "if") != 0 && strcmp(args[cur_arg+3], "unless") != 0)) {
9364 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 3 arguments.\n",
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9365 file, linenum, args[0]);
9366 goto out_err;
9367 }
9368
9369 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9370 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9371 LIST_INIT(&rule->arg.hdr_add.fmt);
9372
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]9373 error = NULL;
9374 if (!regex_comp(args[cur_arg + 1], &rule->arg.hdr_add.re, 1, 1, &error)) {
9375 Alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
9376 args[cur_arg + 1], error);
9377 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9378 goto out_err;
9379 }
9380
9381 proxy->conf.args.ctx = ARGC_HRQ;
9382 parse_logformat_string(args[cur_arg + 2], proxy, &rule->arg.hdr_add.fmt, LOG_OPT_HTTP,
9383 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR,
9384 file, linenum);
9385
9386 free(proxy->conf.lfs_file);
9387 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9388 proxy->conf.lfs_line = proxy->conf.args.line;
9389 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9390 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9391 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9392 cur_arg = 1;
9393
9394 if (!*args[cur_arg] ||
9395 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9396 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9397 file, linenum, args[0]);
9398 goto out_err;
9399 }
9400
9401 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9402 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9403
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9404 proxy->conf.args.ctx = ARGC_HRS;
9405 free(proxy->conf.lfs_file);
9406 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9407 proxy->conf.lfs_line = proxy->conf.args.line;
9408 cur_arg += 1;
9409 } else if (strncmp(args[0], "add-acl", 7) == 0) {
9410 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9411 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9412 /*
9413 * '+ 8' for 'add-acl('
9414 * '- 9' for 'add-acl(' + trailing ')'
9415 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9416 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9417
9418 cur_arg = 1;
9419
9420 if (!*args[cur_arg] ||
9421 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9422 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9423 file, linenum, args[0]);
9424 goto out_err;
9425 }
9426
9427 LIST_INIT(&rule->arg.map.key);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9428 proxy->conf.args.ctx = ARGC_HRS;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9429 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9430 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR,
9431 file, linenum);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9432 free(proxy->conf.lfs_file);
9433 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9434 proxy->conf.lfs_line = proxy->conf.args.line;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9435
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9436 cur_arg += 1;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9437 } else if (strncmp(args[0], "del-acl", 7) == 0) {
9438 /* http-response del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9439 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9440 /*
9441 * '+ 8' for 'del-acl('
9442 * '- 9' for 'del-acl(' + trailing ')'
9443 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9444 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9445
9446 cur_arg = 1;
9447
9448 if (!*args[cur_arg] ||
9449 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9450 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9451 file, linenum, args[0]);
9452 goto out_err;
9453 }
9454
9455 LIST_INIT(&rule->arg.map.key);
9456 proxy->conf.args.ctx = ARGC_HRS;
9457 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9458 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR,
9459 file, linenum);
9460 free(proxy->conf.lfs_file);
9461 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9462 proxy->conf.lfs_line = proxy->conf.args.line;
9463 cur_arg += 1;
9464 } else if (strncmp(args[0], "del-map", 7) == 0) {
9465 /* http-response del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9466 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9467 /*
9468 * '+ 8' for 'del-map('
9469 * '- 9' for 'del-map(' + trailing ')'
9470 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9471 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9472
9473 cur_arg = 1;
9474
9475 if (!*args[cur_arg] ||
9476 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9477 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9478 file, linenum, args[0]);
9479 goto out_err;
9480 }
9481
9482 LIST_INIT(&rule->arg.map.key);
9483 proxy->conf.args.ctx = ARGC_HRS;
9484 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9485 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR,
9486 file, linenum);
9487 free(proxy->conf.lfs_file);
9488 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9489 proxy->conf.lfs_line = proxy->conf.args.line;
9490 cur_arg += 1;
9491 } else if (strncmp(args[0], "set-map", 7) == 0) {
9492 /* http-response set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9493 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9494 /*
9495 * '+ 8' for 'set-map('
9496 * '- 9' for 'set-map(' + trailing ')'
9497 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9498 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9499
9500 cur_arg = 1;
9501
9502 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9503 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
9504 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
9505 file, linenum, args[0]);
9506 goto out_err;
9507 }
9508
9509 LIST_INIT(&rule->arg.map.key);
9510 LIST_INIT(&rule->arg.map.value);
9511
9512 proxy->conf.args.ctx = ARGC_HRS;
9513
9514 /* key pattern */
9515 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9516 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR,
9517 file, linenum);
9518
9519 /* value pattern */
9520 parse_logformat_string(args[cur_arg + 1], proxy, &rule->arg.map.value, LOG_OPT_HTTP,
9521 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR,
9522 file, linenum);
9523
9524 free(proxy->conf.lfs_file);
9525 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9526 proxy->conf.lfs_line = proxy->conf.args.line;
9527
9528 cur_arg += 2;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9529 } else if (strcmp(args[0], "redirect") == 0) {
9530 struct redirect_rule *redir;
9531 char *errmsg = NULL;
9532
9533 if ((redir = http_parse_redirect_rule(file, linenum, proxy, (const char **)args + 1, &errmsg, 1, 1)) == NULL) {
9534 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9535 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
9536 goto out_err;
9537 }
9538
9539 /* this redirect rule might already contain a parsed condition which
9540 * we'll pass to the http-request rule.
9541 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9542 rule->action = ACT_HTTP_REDIR;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9543 rule->arg.redir = redir;
9544 rule->cond = redir->cond;
9545 redir->cond = NULL;
9546 cur_arg = 2;
9547 return rule;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9548 } else if (((custom = action_http_res_custom(args[0])) != NULL)) {
9549 char *errmsg = NULL;
9550 cur_arg = 1;
9551 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]9552 rule->from = ACT_F_HTTP_RES;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]9553 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]9554 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9555 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9556 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
9557 free(errmsg);
9558 goto out_err;
9559 }
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9560 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9561 action_build_list(&http_res_keywords.list, &trash);
9562 Alert("parsing [%s:%d]: 'http-response' expects 'allow', 'deny', 'redirect', "
9563 "'add-header', 'del-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
William Lallemand2e785f22016-05-25 01:48:42 +0200[diff] [blame]9564 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map'"
9565 "%s%s, but got '%s'%s.\n",
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9566 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9567 goto out_err;
9568 }
9569
9570 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
9571 struct acl_cond *cond;
9572 char *errmsg = NULL;
9573
9574 if ((cond = build_acl_cond(file, linenum, proxy, args+cur_arg, &errmsg)) == NULL) {
9575 Alert("parsing [%s:%d] : error detected while parsing an 'http-response %s' condition : %s.\n",
9576 file, linenum, args[0], errmsg);
9577 free(errmsg);
9578 goto out_err;
9579 }
9580 rule->cond = cond;
9581 }
9582 else if (*args[cur_arg]) {
9583 Alert("parsing [%s:%d]: 'http-response %s' expects"
9584 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
9585 file, linenum, args[0], args[cur_arg]);
9586 goto out_err;
9587 }
9588
9589 return rule;
9590 out_err:
9591 free(rule);
9592 return NULL;
9593}
9594
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9595/* Parses a redirect rule. Returns the redirect rule on success or NULL on error,
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9596 * 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]9597 * dynamic log-format rule instead of a static string. Parameter <dir> indicates
9598 * the direction of the rule, and equals 0 for request, non-zero for responses.
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9599 */
9600struct redirect_rule *http_parse_redirect_rule(const char *file, int linenum, struct proxy *curproxy,
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9601 const char **args, char **errmsg, int use_fmt, int dir)
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9602{
9603 struct redirect_rule *rule;
9604 int cur_arg;
9605 int type = REDIRECT_TYPE_NONE;
9606 int code = 302;
9607 const char *destination = NULL;
9608 const char *cookie = NULL;
9609 int cookie_set = 0;
9610 unsigned int flags = REDIRECT_FLAG_NONE;
9611 struct acl_cond *cond = NULL;
9612
9613 cur_arg = 0;
9614 while (*(args[cur_arg])) {
9615 if (strcmp(args[cur_arg], "location") == 0) {
9616 if (!*args[cur_arg + 1])
9617 goto missing_arg;
9618
9619 type = REDIRECT_TYPE_LOCATION;
9620 cur_arg++;
9621 destination = args[cur_arg];
9622 }
9623 else if (strcmp(args[cur_arg], "prefix") == 0) {
9624 if (!*args[cur_arg + 1])
9625 goto missing_arg;
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9626 type = REDIRECT_TYPE_PREFIX;
9627 cur_arg++;
9628 destination = args[cur_arg];
9629 }
9630 else if (strcmp(args[cur_arg], "scheme") == 0) {
9631 if (!*args[cur_arg + 1])
9632 goto missing_arg;
9633
9634 type = REDIRECT_TYPE_SCHEME;
9635 cur_arg++;
9636 destination = args[cur_arg];
9637 }
9638 else if (strcmp(args[cur_arg], "set-cookie") == 0) {
9639 if (!*args[cur_arg + 1])
9640 goto missing_arg;
9641
9642 cur_arg++;
9643 cookie = args[cur_arg];
9644 cookie_set = 1;
9645 }
9646 else if (strcmp(args[cur_arg], "clear-cookie") == 0) {
9647 if (!*args[cur_arg + 1])
9648 goto missing_arg;
9649
9650 cur_arg++;
9651 cookie = args[cur_arg];
9652 cookie_set = 0;
9653 }
9654 else if (strcmp(args[cur_arg], "code") == 0) {
9655 if (!*args[cur_arg + 1])
9656 goto missing_arg;
9657
9658 cur_arg++;
9659 code = atol(args[cur_arg]);
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9660 if (code < 301 || code > 308 || (code > 303 && code < 307)) {
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9661 memprintf(errmsg,
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9662 "'%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]9663 args[cur_arg - 1], args[cur_arg]);
9664 return NULL;
9665 }
9666 }
9667 else if (!strcmp(args[cur_arg],"drop-query")) {
9668 flags |= REDIRECT_FLAG_DROP_QS;
9669 }
9670 else if (!strcmp(args[cur_arg],"append-slash")) {
9671 flags |= REDIRECT_FLAG_APPEND_SLASH;
9672 }
9673 else if (strcmp(args[cur_arg], "if") == 0 ||
9674 strcmp(args[cur_arg], "unless") == 0) {
9675 cond = build_acl_cond(file, linenum, curproxy, (const char **)args + cur_arg, errmsg);
9676 if (!cond) {
9677 memprintf(errmsg, "error in condition: %s", *errmsg);
9678 return NULL;
9679 }
9680 break;
9681 }
9682 else {
9683 memprintf(errmsg,
9684 "expects 'code', 'prefix', 'location', 'scheme', 'set-cookie', 'clear-cookie', 'drop-query' or 'append-slash' (was '%s')",
9685 args[cur_arg]);
9686 return NULL;
9687 }
9688 cur_arg++;
9689 }
9690
9691 if (type == REDIRECT_TYPE_NONE) {
9692 memprintf(errmsg, "redirection type expected ('prefix', 'location', or 'scheme')");
9693 return NULL;
9694 }
9695
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9696 if (dir && type != REDIRECT_TYPE_LOCATION) {
9697 memprintf(errmsg, "response only supports redirect type 'location'");
9698 return NULL;
9699 }
9700
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]9701 rule = calloc(1, sizeof(*rule));
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9702 rule->cond = cond;
Willy Tarreau60e08382013-12-03 00:48:45 +0100[diff] [blame]9703 LIST_INIT(&rule->rdr_fmt);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9704
9705 if (!use_fmt) {
9706 /* old-style static redirect rule */
9707 rule->rdr_str = strdup(destination);
9708 rule->rdr_len = strlen(destination);
9709 }
9710 else {
9711 /* log-format based redirect rule */
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9712
9713 /* Parse destination. Note that in the REDIRECT_TYPE_PREFIX case,
9714 * if prefix == "/", we don't want to add anything, otherwise it
9715 * makes it hard for the user to configure a self-redirection.
9716 */
Godbachd9722032014-12-18 15:44:58 +0800[diff] [blame]9717 curproxy->conf.args.ctx = ARGC_RDR;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9718 if (!(type == REDIRECT_TYPE_PREFIX && destination[0] == '/' && destination[1] == '\0')) {
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]9719 parse_logformat_string(destination, curproxy, &rule->rdr_fmt, LOG_OPT_HTTP,
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9720 dir ? (curproxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRS_HDR : SMP_VAL_BE_HRS_HDR
9721 : (curproxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
Thierry FOURNIEReeaa9512014-02-11 14:00:19 +0100[diff] [blame]9722 file, linenum);
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9723 free(curproxy->conf.lfs_file);
9724 curproxy->conf.lfs_file = strdup(curproxy->conf.args.file);
9725 curproxy->conf.lfs_line = curproxy->conf.args.line;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9726 }
9727 }
9728
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9729 if (cookie) {
9730 /* depending on cookie_set, either we want to set the cookie, or to clear it.
9731 * a clear consists in appending "; path=/; Max-Age=0;" at the end.
9732 */
9733 rule->cookie_len = strlen(cookie);
9734 if (cookie_set) {
9735 rule->cookie_str = malloc(rule->cookie_len + 10);
9736 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9737 memcpy(rule->cookie_str + rule->cookie_len, "; path=/;", 10);
9738 rule->cookie_len += 9;
9739 } else {
9740 rule->cookie_str = malloc(rule->cookie_len + 21);
9741 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9742 memcpy(rule->cookie_str + rule->cookie_len, "; path=/; Max-Age=0;", 21);
9743 rule->cookie_len += 20;
9744 }
9745 }
9746 rule->type = type;
9747 rule->code = code;
9748 rule->flags = flags;
9749 LIST_INIT(&rule->list);
9750 return rule;
9751
9752 missing_arg:
9753 memprintf(errmsg, "missing argument for '%s'", args[cur_arg]);
9754 return NULL;
9755}
9756
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9757/************************************************************************/
9758/* The code below is dedicated to ACL parsing and matching */
9759/************************************************************************/
9760
9761
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9762/* This function ensures that the prerequisites for an L7 fetch are ready,
9763 * which means that a request or response is ready. If some data is missing,
9764 * 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]9765 * to extract data from L7. If <req_vol> is non-null during a request prefetch,
9766 * another test is made to ensure the required information is not gone.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9767 *
9768 * The function returns :
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9769 * 0 with SMP_F_MAY_CHANGE in the sample flags if some data is missing to
9770 * decide whether or not an HTTP message is present ;
9771 * 0 if the requested data cannot be fetched or if it is certain that
9772 * we'll never have any HTTP message there ;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9773 * 1 if an HTTP message is ready
9774 */
James Rosewell91a41cb2015-09-18 17:11:16 +0100[diff] [blame]9775int smp_prefetch_http(struct proxy *px, struct stream *s, unsigned int opt,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9776 const struct arg *args, struct sample *smp, int req_vol)
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9777{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9778 struct http_txn *txn;
9779 struct http_msg *msg;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9780
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9781 /* Note: it is possible that <s> is NULL when called before stream
9782 * initialization (eg: tcp-request connection), so this function is the
9783 * one responsible for guarding against this case for all HTTP users.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9784 */
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9785 if (!s)
9786 return 0;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9787
Thierry FOURNIERed08d6a2015-09-24 08:40:18 +0200[diff] [blame]9788 if (!s->txn) {
9789 if (unlikely(!http_alloc_txn(s)))
9790 return 0; /* not enough memory */
9791 http_init_txn(s);
9792 }
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9793 txn = s->txn;
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9794 msg = &txn->req;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9795
9796 /* Check for a dependency on a request */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9797 smp->data.type = SMP_T_BOOL;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9798
Willy Tarreau32a6f2e2012-04-25 10:13:36 +0200[diff] [blame]9799 if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9800 /* If the buffer does not leave enough free space at the end,
9801 * we must first realign it.
9802 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9803 if (s->req.buf->p > s->req.buf->data &&
9804 s->req.buf->i + s->req.buf->p > s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)
9805 buffer_slow_realign(s->req.buf);
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9806
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9807 if (unlikely(txn->req.msg_state < HTTP_MSG_BODY)) {
Willy Tarreau472b1ee2013-10-14 22:41:30 +0200[diff] [blame]9808 if (msg->msg_state == HTTP_MSG_ERROR)
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9809 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9810
9811 /* Try to decode HTTP request */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9812 if (likely(msg->next < s->req.buf->i))
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9813 http_msg_analyzer(msg, &txn->hdr_idx);
9814
9815 /* Still no valid request ? */
9816 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau3bf1b2b2012-08-27 20:46:07 +0200[diff] [blame]9817 if ((msg->msg_state == HTTP_MSG_ERROR) ||
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9818 buffer_full(s->req.buf, global.tune.maxrewrite)) {
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9819 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9820 }
9821 /* wait for final state */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9822 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9823 return 0;
9824 }
9825
9826 /* OK we just got a valid HTTP request. We have some minor
9827 * preparation to perform so that further checks can rely
9828 * on HTTP tests.
9829 */
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9830
9831 /* If the request was parsed but was too large, we must absolutely
9832 * return an error so that it is not processed. At the moment this
9833 * cannot happen, but if the parsers are to change in the future,
9834 * we want this check to be maintained.
9835 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9836 if (unlikely(s->req.buf->i + s->req.buf->p >
9837 s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)) {
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9838 msg->msg_state = HTTP_MSG_ERROR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9839 smp->data.u.sint = 1;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9840 return 1;
9841 }
9842
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9843 txn->meth = find_http_meth(msg->chn->buf->p, msg->sl.rq.m_l);
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9844 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]9845 s->flags |= SF_REDIRECTABLE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9846
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9847 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
9848 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9849 }
9850
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9851 if (req_vol && txn->rsp.msg_state != HTTP_MSG_RPBEFORE) {
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9852 return 0; /* data might have moved and indexes changed */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9853 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9854
9855 /* otherwise everything's ready for the request */
9856 }
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9857 else {
9858 /* Check for a dependency on a response */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9859 if (txn->rsp.msg_state < HTTP_MSG_BODY) {
9860 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9861 return 0;
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9862 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9863 }
9864
9865 /* everything's OK */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9866 smp->data.u.sint = 1;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9867 return 1;
9868}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9869
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9870/* 1. Check on METHOD
9871 * We use the pre-parsed method if it is known, and store its number as an
9872 * integer. If it is unknown, we use the pointer and the length.
9873 */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9874static int pat_parse_meth(const char *text, struct pattern *pattern, int mflags, char **err)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9875{
9876 int len, meth;
9877
Thierry FOURNIER580c32c2014-01-24 10:58:12 +0100[diff] [blame]9878 len = strlen(text);
9879 meth = find_http_meth(text, len);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9880
9881 pattern->val.i = meth;
9882 if (meth == HTTP_METH_OTHER) {
Willy Tarreau912c1192014-08-29 15:15:50 +0200[diff] [blame]9883 pattern->ptr.str = (char *)text;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9884 pattern->len = len;
9885 }
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9886 else {
9887 pattern->ptr.str = NULL;
9888 pattern->len = 0;
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9889 }
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9890 return 1;
9891}
9892
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9893/* This function fetches the method of current HTTP request and stores
9894 * it in the global pattern struct as a chunk. There are two possibilities :
9895 * - if the method is known (not HTTP_METH_OTHER), its identifier is stored
9896 * in <len> and <ptr> is NULL ;
9897 * - if the method is unknown (HTTP_METH_OTHER), <ptr> points to the text and
9898 * <len> to its length.
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]9899 * This is intended to be used with pat_match_meth() only.
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9900 */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9901static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9902smp_fetch_meth(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9903{
9904 int meth;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9905 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9906
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9907 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9908
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9909 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9910 meth = txn->meth;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9911 smp->data.type = SMP_T_METH;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9912 smp->data.u.meth.meth = meth;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9913 if (meth == HTTP_METH_OTHER) {
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9914 if (txn->rsp.msg_state != HTTP_MSG_RPBEFORE)
9915 /* ensure the indexes are not affected */
9916 return 0;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9917 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9918 smp->data.u.meth.str.len = txn->req.sl.rq.m_l;
9919 smp->data.u.meth.str.str = txn->req.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9920 }
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9921 smp->flags |= SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9922 return 1;
9923}
9924
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9925/* See above how the method is stored in the global pattern */
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9926static struct pattern *pat_match_meth(struct sample *smp, struct pattern_expr *expr, int fill)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9927{
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9928 int icase;
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9929 struct pattern_list *lst;
9930 struct pattern *pattern;
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9931
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9932 list_for_each_entry(lst, &expr->patterns, list) {
9933 pattern = &lst->pat;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9934
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9935 /* well-known method */
9936 if (pattern->val.i != HTTP_METH_OTHER) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9937 if (smp->data.u.meth.meth == pattern->val.i)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9938 return pattern;
9939 else
9940 continue;
9941 }
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9942
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9943 /* Other method, we must compare the strings */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9944 if (pattern->len != smp->data.u.meth.str.len)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9945 continue;
9946
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9947 icase = expr->mflags & PAT_MF_IGNORE_CASE;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9948 if ((icase && strncasecmp(pattern->ptr.str, smp->data.u.meth.str.str, smp->data.u.meth.str.len) == 0) ||
9949 (!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]9950 return pattern;
9951 }
9952 return NULL;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9953}
9954
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9955static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9956smp_fetch_rqver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9957{
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9958 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9959 char *ptr;
9960 int len;
9961
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9962 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9963
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9964 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9965 len = txn->req.sl.rq.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9966 ptr = txn->req.chn->buf->p + txn->req.sl.rq.v;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9967
9968 while ((len-- > 0) && (*ptr++ != '/'));
9969 if (len <= 0)
9970 return 0;
9971
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9972 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9973 smp->data.u.str.str = ptr;
9974 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9975
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9976 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9977 return 1;
9978}
9979
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9980static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9981smp_fetch_stver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9982{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9983 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9984 char *ptr;
9985 int len;
9986
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9987 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9988
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9989 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9990 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9991 return 0;
9992
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9993 len = txn->rsp.sl.st.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9994 ptr = txn->rsp.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9995
9996 while ((len-- > 0) && (*ptr++ != '/'));
9997 if (len <= 0)
9998 return 0;
9999
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10000 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10001 smp->data.u.str.str = ptr;
10002 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10003
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10004 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10005 return 1;
10006}
10007
10008/* 3. Check on Status Code. We manipulate integers here. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]10009static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10010smp_fetch_stcode(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10011{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10012 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10013 char *ptr;
10014 int len;
10015
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10016 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10017
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10018 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]10019 if (txn->rsp.msg_state < HTTP_MSG_BODY)
10020 return 0;
10021
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10022 len = txn->rsp.sl.st.c_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10023 ptr = txn->rsp.chn->buf->p + txn->rsp.sl.st.c;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10024
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10025 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10026 smp->data.u.sint = __strl2ui(ptr, len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10027 smp->flags = SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10028 return 1;
10029}
10030
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]10031static int
10032smp_fetch_uniqueid(const struct arg *args, struct sample *smp, const char *kw, void *private)
10033{
10034 if (LIST_ISEMPTY(&smp->sess->fe->format_unique_id))
10035 return 0;
10036
10037 if (!smp->strm->unique_id) {
10038 if ((smp->strm->unique_id = pool_alloc2(pool2_uniqueid)) == NULL)
10039 return 0;
10040 smp->strm->unique_id[0] = '\0';
10041 }
10042 smp->data.u.str.len = build_logline(smp->strm, smp->strm->unique_id,
10043 UNIQUEID_LEN, &smp->sess->fe->format_unique_id);
10044
10045 smp->data.type = SMP_T_STR;
10046 smp->data.u.str.str = smp->strm->unique_id;
10047 smp->flags = SMP_F_CONST;
10048 return 1;
10049}
10050
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10051/* returns the longest available part of the body. This requires that the body
10052 * has been waited for using http-buffer-request.
10053 */
10054static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10055smp_fetch_body(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10056{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10057 struct http_msg *msg;
10058 unsigned long len;
10059 unsigned long block1;
10060 char *body;
10061 struct chunk *temp;
10062
10063 CHECK_HTTP_MESSAGE_FIRST();
10064
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10065 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10066 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10067 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10068 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10069
10070 len = http_body_bytes(msg);
10071 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
10072
10073 block1 = len;
10074 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
10075 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
10076
10077 if (block1 == len) {
10078 /* buffer is not wrapped (or empty) */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10079 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10080 smp->data.u.str.str = body;
10081 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10082 smp->flags = SMP_F_VOL_TEST | SMP_F_CONST;
10083 }
10084 else {
10085 /* buffer is wrapped, we need to defragment it */
10086 temp = get_trash_chunk();
10087 memcpy(temp->str, body, block1);
10088 memcpy(temp->str + block1, msg->chn->buf->data, len - block1);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10089 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10090 smp->data.u.str.str = temp->str;
10091 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10092 smp->flags = SMP_F_VOL_TEST;
10093 }
10094 return 1;
10095}
10096
10097
10098/* returns the available length of the body. This requires that the body
10099 * has been waited for using http-buffer-request.
10100 */
10101static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10102smp_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]10103{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10104 struct http_msg *msg;
10105
10106 CHECK_HTTP_MESSAGE_FIRST();
10107
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10108 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10109 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10110 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10111 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10112
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10113 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10114 smp->data.u.sint = http_body_bytes(msg);
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10115
10116 smp->flags = SMP_F_VOL_TEST;
10117 return 1;
10118}
10119
10120
10121/* returns the advertised length of the body, or the advertised size of the
10122 * chunks available in the buffer. This requires that the body has been waited
10123 * for using http-buffer-request.
10124 */
10125static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10126smp_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]10127{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10128 struct http_msg *msg;
10129
10130 CHECK_HTTP_MESSAGE_FIRST();
10131
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10132 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10133 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10134 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10135 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10136
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10137 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10138 smp->data.u.sint = msg->body_len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10139
10140 smp->flags = SMP_F_VOL_TEST;
10141 return 1;
10142}
10143
10144
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10145/* 4. Check on URL/URI. A pointer to the URI is stored. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]10146static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10147smp_fetch_url(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10148{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10149 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10150
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10151 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10152
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10153 txn = smp->strm->txn;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10154 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10155 smp->data.u.str.len = txn->req.sl.rq.u_l;
10156 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]10157 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10158 return 1;
10159}
10160
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10161static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10162smp_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]10163{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10164 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]10165 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10166
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10167 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10168
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10169 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]10170 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]10171 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
Willy Tarreauf4362b32011-12-16 17:49:52 +0100[diff] [blame]10172 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10173
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10174 smp->data.type = SMP_T_IPV4;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10175 smp->data.u.ipv4 = ((struct sockaddr_in *)&addr)->sin_addr;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10176 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10177 return 1;
10178}
10179
10180static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10181smp_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]10182{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10183 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]10184 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10185
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10186 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10187
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10188 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]10189 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]10190 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
10191 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10192
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10193 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10194 smp->data.u.sint = ntohs(((struct sockaddr_in *)&addr)->sin_port);
Willy Tarreau21e5b0e2012-04-23 19:25:44 +0200[diff] [blame]10195 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10196 return 1;
10197}
10198
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10199/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
10200 * Accepts an optional argument of type string containing the header field name,
10201 * and an optional argument of type signed or unsigned integer to request an
10202 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10203 * headers are considered from the first one. It does not stop on commas and
10204 * returns full lines instead (useful for User-Agent or Date for example).
10205 */
10206static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10207smp_fetch_fhdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10208{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10209 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10210 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10211 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10212 int occ = 0;
10213 const char *name_str = NULL;
10214 int name_len = 0;
10215
10216 if (!ctx) {
10217 /* first call */
10218 ctx = &static_hdr_ctx;
10219 ctx->idx = 0;
10220 smp->ctx.a[0] = ctx;
10221 }
10222
10223 if (args) {
10224 if (args[0].type != ARGT_STR)
10225 return 0;
10226 name_str = args[0].data.str.str;
10227 name_len = args[0].data.str.len;
10228
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10229 if (args[1].type == ARGT_SINT)
10230 occ = args[1].data.sint;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10231 }
10232
10233 CHECK_HTTP_MESSAGE_FIRST();
10234
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10235 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10236 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]10237
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10238 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
10239 /* search for header from the beginning */
10240 ctx->idx = 0;
10241
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10242 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10243 /* no explicit occurrence and single fetch => last header by default */
10244 occ = -1;
10245
10246 if (!occ)
10247 /* prepare to report multiple occurrences for ACL fetches */
10248 smp->flags |= SMP_F_NOT_LAST;
10249
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10250 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10251 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10252 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]10253 return 1;
10254
10255 smp->flags &= ~SMP_F_NOT_LAST;
10256 return 0;
10257}
10258
10259/* 6. Check on HTTP header count. The number of occurrences is returned.
10260 * Accepts exactly 1 argument of type string. It does not stop on commas and
10261 * returns full lines instead (useful for User-Agent or Date for example).
10262 */
10263static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10264smp_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]10265{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10266 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10267 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10268 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10269 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10270 const char *name = NULL;
10271 int len = 0;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10272
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10273 if (args && args->type == ARGT_STR) {
10274 name = args->data.str.str;
10275 len = args->data.str.len;
10276 }
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10277
10278 CHECK_HTTP_MESSAGE_FIRST();
10279
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10280 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10281 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]10282
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10283 ctx.idx = 0;
10284 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10285 while (http_find_full_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10286 cnt++;
10287
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10288 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10289 smp->data.u.sint = cnt;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10290 smp->flags = SMP_F_VOL_HDR;
10291 return 1;
10292}
10293
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10294static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10295smp_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]10296{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10297 struct hdr_idx *idx;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10298 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10299 const struct http_msg *msg;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10300 struct chunk *temp;
10301 char del = ',';
10302
10303 if (args && args->type == ARGT_STR)
10304 del = *args[0].data.str.str;
10305
10306 CHECK_HTTP_MESSAGE_FIRST();
10307
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10308 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10309 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]10310
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10311 temp = get_trash_chunk();
10312
10313 ctx.idx = 0;
10314 while (http_find_next_header(msg->chn->buf->p, idx, &ctx)) {
10315 if (temp->len)
10316 temp->str[temp->len++] = del;
10317 memcpy(temp->str + temp->len, ctx.line, ctx.del);
10318 temp->len += ctx.del;
10319 }
10320
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10321 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10322 smp->data.u.str.str = temp->str;
10323 smp->data.u.str.len = temp->len;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10324 smp->flags = SMP_F_VOL_HDR;
10325 return 1;
10326}
10327
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10328/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
10329 * Accepts an optional argument of type string containing the header field name,
10330 * and an optional argument of type signed or unsigned integer to request an
10331 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10332 * headers are considered from the first one.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10333 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10334static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10335smp_fetch_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10336{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10337 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10338 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10339 const struct http_msg *msg;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10340 int occ = 0;
10341 const char *name_str = NULL;
10342 int name_len = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10343
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10344 if (!ctx) {
10345 /* first call */
10346 ctx = &static_hdr_ctx;
10347 ctx->idx = 0;
Willy Tarreauffb6f082013-04-02 23:16:53 +0200[diff] [blame]10348 smp->ctx.a[0] = ctx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10349 }
10350
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10351 if (args) {
10352 if (args[0].type != ARGT_STR)
10353 return 0;
10354 name_str = args[0].data.str.str;
10355 name_len = args[0].data.str.len;
10356
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10357 if (args[1].type == ARGT_SINT)
10358 occ = args[1].data.sint;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10359 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10360
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10361 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10362
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10363 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10364 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]10365
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10366 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10367 /* search for header from the beginning */
10368 ctx->idx = 0;
10369
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10370 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10371 /* no explicit occurrence and single fetch => last header by default */
10372 occ = -1;
10373
10374 if (!occ)
10375 /* prepare to report multiple occurrences for ACL fetches */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10376 smp->flags |= SMP_F_NOT_LAST;
Willy Tarreau664092c2011-12-16 19:11:42 +0100[diff] [blame]10377
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10378 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10379 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10380 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]10381 return 1;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10382
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10383 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10384 return 0;
10385}
10386
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10387/* 6. Check on HTTP header count. The number of occurrences is returned.
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10388 * Accepts exactly 1 argument of type string.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10389 */
10390static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10391smp_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]10392{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10393 struct hdr_idx *idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10394 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10395 const struct http_msg *msg;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10396 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10397 const char *name = NULL;
10398 int len = 0;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10399
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10400 if (args && args->type == ARGT_STR) {
10401 name = args->data.str.str;
10402 len = args->data.str.len;
10403 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10404
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10405 CHECK_HTTP_MESSAGE_FIRST();
10406
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10407 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10408 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]10409
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10410 ctx.idx = 0;
10411 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10412 while (http_find_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10413 cnt++;
10414
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10415 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10416 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10417 smp->flags = SMP_F_VOL_HDR;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10418 return 1;
10419}
10420
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10421/* Fetch an HTTP header's integer value. The integer value is returned. It
10422 * takes a mandatory argument of type string and an optional one of type int
10423 * to designate a specific occurrence. It returns an unsigned integer, which
10424 * may or may not be appropriate for everything.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10425 */
10426static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10427smp_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]10428{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10429 int ret = smp_fetch_hdr(args, smp, kw, private);
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10430
Willy Tarreauf853c462012-04-23 18:53:56 +0200[diff] [blame]10431 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10432 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10433 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]10434 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10435
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10436 return ret;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10437}
10438
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10439/* Fetch an HTTP header's IP value. takes a mandatory argument of type string
10440 * and an optional one of type int to designate a specific occurrence.
10441 * It returns an IPv4 or IPv6 address.
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10442 */
10443static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10444smp_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]10445{
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10446 int ret;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10447
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10448 while ((ret = smp_fetch_hdr(args, smp, kw, private)) > 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10449 if (url2ipv4((char *)smp->data.u.str.str, &smp->data.u.ipv4)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10450 smp->data.type = SMP_T_IPV4;
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10451 break;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10452 } else {
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10453 struct chunk *temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10454 if (smp->data.u.str.len < temp->size - 1) {
10455 memcpy(temp->str, smp->data.u.str.str, smp->data.u.str.len);
10456 temp->str[smp->data.u.str.len] = '\0';
10457 if (inet_pton(AF_INET6, temp->str, &smp->data.u.ipv6)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10458 smp->data.type = SMP_T_IPV6;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10459 break;
10460 }
10461 }
10462 }
10463
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10464 /* if the header doesn't match an IP address, fetch next one */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10465 if (!(smp->flags & SMP_F_NOT_LAST))
10466 return 0;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10467 }
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10468 return ret;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10469}
10470
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10471/* 8. Check on URI PATH. A pointer to the PATH is stored. The path starts at
10472 * the first '/' after the possible hostname, and ends before the possible '?'.
10473 */
10474static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10475smp_fetch_path(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10476{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10477 struct http_txn *txn;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10478 char *ptr, *end;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10479
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10480 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10481
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10482 txn = smp->strm->txn;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10483 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]10484 ptr = http_get_path(txn);
10485 if (!ptr)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10486 return 0;
10487
10488 /* OK, we got the '/' ! */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10489 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10490 smp->data.u.str.str = ptr;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10491
10492 while (ptr < end && *ptr != '?')
10493 ptr++;
10494
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10495 smp->data.u.str.len = ptr - smp->data.u.str.str;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10496 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10497 return 1;
10498}
10499
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10500/* This produces a concatenation of the first occurrence of the Host header
10501 * followed by the path component if it begins with a slash ('/'). This means
10502 * that '*' will not be added, resulting in exactly the first Host entry.
10503 * If no Host header is found, then the path is returned as-is. The returned
10504 * 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]10505 * The returned sample is of type string.
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10506 */
10507static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10508smp_fetch_base(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10509{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10510 struct http_txn *txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10511 char *ptr, *end, *beg;
10512 struct hdr_ctx ctx;
Willy Tarreau3caf2af2014-06-24 17:27:02 +0200[diff] [blame]10513 struct chunk *temp;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10514
10515 CHECK_HTTP_MESSAGE_FIRST();
10516
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10517 txn = smp->strm->txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10518 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10519 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]10520 return smp_fetch_path(args, smp, kw, private);
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10521
10522 /* 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]10523 temp = get_trash_chunk();
10524 memcpy(temp->str, ctx.line + ctx.val, ctx.vlen);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10525 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10526 smp->data.u.str.str = temp->str;
10527 smp->data.u.str.len = ctx.vlen;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10528
10529 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10530 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]10531 beg = http_get_path(txn);
10532 if (!beg)
10533 beg = end;
10534
10535 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10536
10537 if (beg < ptr && *beg == '/') {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10538 memcpy(smp->data.u.str.str + smp->data.u.str.len, beg, ptr - beg);
10539 smp->data.u.str.len += ptr - beg;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10540 }
10541
10542 smp->flags = SMP_F_VOL_1ST;
10543 return 1;
10544}
10545
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10546/* This produces a 32-bit hash of the concatenation of the first occurrence of
10547 * the Host header followed by the path component if it begins with a slash ('/').
10548 * This means that '*' will not be added, resulting in exactly the first Host
10549 * 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]10550 * is hashed using the path hash followed by a full avalanche hash and provides a
10551 * 32-bit integer value. This fetch is useful for tracking per-path activity on
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10552 * high-traffic sites without having to store whole paths.
10553 */
Thierry FOURNIER055b9d52014-07-15 16:11:07 +0200[diff] [blame]10554int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10555smp_fetch_base32(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10556{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10557 struct http_txn *txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10558 struct hdr_ctx ctx;
10559 unsigned int hash = 0;
10560 char *ptr, *beg, *end;
10561 int len;
10562
10563 CHECK_HTTP_MESSAGE_FIRST();
10564
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10565 txn = smp->strm->txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10566 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10567 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]10568 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
10569 ptr = ctx.line + ctx.val;
10570 len = ctx.vlen;
10571 while (len--)
10572 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
10573 }
10574
10575 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10576 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]10577 beg = http_get_path(txn);
10578 if (!beg)
10579 beg = end;
10580
10581 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10582
10583 if (beg < ptr && *beg == '/') {
10584 while (beg < ptr)
10585 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
10586 }
10587 hash = full_hash(hash);
10588
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10589 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10590 smp->data.u.sint = hash;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10591 smp->flags = SMP_F_VOL_1ST;
10592 return 1;
10593}
10594
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10595/* 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]10596 * path as returned by smp_fetch_base32(). The idea is to have per-source and
10597 * per-path counters. The result is a binary block from 8 to 20 bytes depending
10598 * on the source address length. The path hash is stored before the address so
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10599 * that in environments where IPv6 is insignificant, truncating the output to
10600 * 8 bytes would still work.
10601 */
10602static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10603smp_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]10604{
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10605 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10606 struct connection *cli_conn = objt_conn(smp->sess->origin);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10607
10608 if (!cli_conn)
10609 return 0;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10610
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10611 if (!smp_fetch_base32(args, smp, kw, private))
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10612 return 0;
10613
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10614 temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10615 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
Willy Tarreau5ad6e1d2014-07-15 21:34:06 +0200[diff] [blame]10616 temp->len += sizeof(unsigned int);
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10617
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10618 switch (cli_conn->addr.from.ss_family) {
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10619 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10620 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]10621 temp->len += 4;
10622 break;
10623 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10624 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]10625 temp->len += 16;
10626 break;
10627 default:
10628 return 0;
10629 }
10630
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10631 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10632 smp->data.type = SMP_T_BIN;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10633 return 1;
10634}
10635
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10636/* Extracts the query string, which comes after the question mark '?'. If no
10637 * question mark is found, nothing is returned. Otherwise it returns a sample
10638 * of type string carrying the whole query string.
10639 */
10640static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10641smp_fetch_query(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10642{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10643 struct http_txn *txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10644 char *ptr, *end;
10645
10646 CHECK_HTTP_MESSAGE_FIRST();
10647
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10648 txn = smp->strm->txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10649 ptr = txn->req.chn->buf->p + txn->req.sl.rq.u;
10650 end = ptr + txn->req.sl.rq.u_l;
10651
10652 /* look up the '?' */
10653 do {
10654 if (ptr == end)
10655 return 0;
10656 } while (*ptr++ != '?');
10657
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10658 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10659 smp->data.u.str.str = ptr;
10660 smp->data.u.str.len = end - ptr;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10661 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
10662 return 1;
10663}
10664
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10665static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10666smp_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]10667{
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10668 /* Note: hdr_idx.v cannot be NULL in this ACL because the ACL is tagged
10669 * as a layer7 ACL, which involves automatic allocation of hdr_idx.
10670 */
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10671
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10672 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10673
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10674 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10675 smp->data.u.sint = 1;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10676 return 1;
10677}
10678
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10679/* return a valid test if the current request is the first one on the connection */
10680static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10681smp_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]10682{
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10683 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10684 smp->data.u.sint = !(smp->strm->txn->flags & TX_NOT_FIRST);
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10685 return 1;
10686}
10687
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10688/* Accepts exactly 1 argument of type userlist */
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10689static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10690smp_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]10691{
10692
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10693 if (!args || args->type != ARGT_USR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10694 return 0;
10695
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10696 CHECK_HTTP_MESSAGE_FIRST();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10697
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10698 if (!get_http_auth(smp->strm))
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10699 return 0;
10700
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10701 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10702 smp->data.u.sint = check_user(args->data.usr, smp->strm->txn->auth.user,
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10703 smp->strm->txn->auth.pass);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10704 return 1;
10705}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10706
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10707/* Accepts exactly 1 argument of type userlist */
10708static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10709smp_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]10710{
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10711 if (!args || args->type != ARGT_USR)
10712 return 0;
10713
10714 CHECK_HTTP_MESSAGE_FIRST();
10715
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10716 if (!get_http_auth(smp->strm))
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10717 return 0;
10718
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10719 /* if the user does not belong to the userlist or has a wrong password,
10720 * report that it unconditionally does not match. Otherwise we return
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10721 * a string containing the username.
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10722 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10723 if (!check_user(args->data.usr, smp->strm->txn->auth.user,
10724 smp->strm->txn->auth.pass))
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10725 return 0;
10726
10727 /* pat_match_auth() will need the user list */
10728 smp->ctx.a[0] = args->data.usr;
10729
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10730 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10731 smp->flags = SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10732 smp->data.u.str.str = smp->strm->txn->auth.user;
10733 smp->data.u.str.len = strlen(smp->strm->txn->auth.user);
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10734
10735 return 1;
10736}
10737
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10738/* Try to find the next occurrence of a cookie name in a cookie header value.
10739 * The lookup begins at <hdr>. The pointer and size of the next occurrence of
10740 * the cookie value is returned into *value and *value_l, and the function
10741 * returns a pointer to the next pointer to search from if the value was found.
10742 * Otherwise if the cookie was not found, NULL is returned and neither value
10743 * nor value_l are touched. The input <hdr> string should first point to the
10744 * header's value, and the <hdr_end> pointer must point to the first character
10745 * not part of the value. <list> must be non-zero if value may represent a list
10746 * of values (cookie headers). This makes it faster to abort parsing when no
10747 * list is expected.
10748 */
David Carlier4686f792015-09-25 14:10:50 +0100[diff] [blame]10749char *
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10750extract_cookie_value(char *hdr, const char *hdr_end,
10751 char *cookie_name, size_t cookie_name_l, int list,
Willy Tarreau3fb818c2012-04-11 17:21:08 +0200[diff] [blame]10752 char **value, int *value_l)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10753{
10754 char *equal, *att_end, *att_beg, *val_beg, *val_end;
10755 char *next;
10756
10757 /* we search at least a cookie name followed by an equal, and more
10758 * generally something like this :
10759 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
10760 */
10761 for (att_beg = hdr; att_beg + cookie_name_l + 1 < hdr_end; att_beg = next + 1) {
10762 /* Iterate through all cookies on this line */
10763
10764 while (att_beg < hdr_end && http_is_spht[(unsigned char)*att_beg])
10765 att_beg++;
10766
10767 /* find att_end : this is the first character after the last non
10768 * space before the equal. It may be equal to hdr_end.
10769 */
10770 equal = att_end = att_beg;
10771
10772 while (equal < hdr_end) {
10773 if (*equal == '=' || *equal == ';' || (list && *equal == ','))
10774 break;
10775 if (http_is_spht[(unsigned char)*equal++])
10776 continue;
10777 att_end = equal;
10778 }
10779
10780 /* here, <equal> points to '=', a delimitor or the end. <att_end>
10781 * is between <att_beg> and <equal>, both may be identical.
10782 */
10783
10784 /* look for end of cookie if there is an equal sign */
10785 if (equal < hdr_end && *equal == '=') {
10786 /* look for the beginning of the value */
10787 val_beg = equal + 1;
10788 while (val_beg < hdr_end && http_is_spht[(unsigned char)*val_beg])
10789 val_beg++;
10790
10791 /* find the end of the value, respecting quotes */
10792 next = find_cookie_value_end(val_beg, hdr_end);
10793
10794 /* make val_end point to the first white space or delimitor after the value */
10795 val_end = next;
10796 while (val_end > val_beg && http_is_spht[(unsigned char)*(val_end - 1)])
10797 val_end--;
10798 } else {
10799 val_beg = val_end = next = equal;
10800 }
10801
10802 /* We have nothing to do with attributes beginning with '$'. However,
10803 * they will automatically be removed if a header before them is removed,
10804 * since they're supposed to be linked together.
10805 */
10806 if (*att_beg == '$')
10807 continue;
10808
10809 /* Ignore cookies with no equal sign */
10810 if (equal == next)
10811 continue;
10812
10813 /* Now we have the cookie name between att_beg and att_end, and
10814 * its value between val_beg and val_end.
10815 */
10816
10817 if (att_end - att_beg == cookie_name_l &&
10818 memcmp(att_beg, cookie_name, cookie_name_l) == 0) {
10819 /* let's return this value and indicate where to go on from */
10820 *value = val_beg;
10821 *value_l = val_end - val_beg;
10822 return next + 1;
10823 }
10824
10825 /* Set-Cookie headers only have the name in the first attr=value part */
10826 if (!list)
10827 break;
10828 }
10829
10830 return NULL;
10831}
10832
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10833/* Fetch a captured HTTP request header. The index is the position of
10834 * the "capture" option in the configuration file
10835 */
10836static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10837smp_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]10838{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10839 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10840 int idx;
10841
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10842 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10843 return 0;
10844
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10845 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10846
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10847 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]10848 return 0;
10849
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10850 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10851 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10852 smp->data.u.str.str = smp->strm->req_cap[idx];
10853 smp->data.u.str.len = strlen(smp->strm->req_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10854
10855 return 1;
10856}
10857
10858/* Fetch a captured HTTP response header. The index is the position of
10859 * the "capture" option in the configuration file
10860 */
10861static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10862smp_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]10863{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10864 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10865 int idx;
10866
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10867 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10868 return 0;
10869
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10870 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10871
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10872 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]10873 return 0;
10874
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10875 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10876 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10877 smp->data.u.str.str = smp->strm->res_cap[idx];
10878 smp->data.u.str.len = strlen(smp->strm->res_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10879
10880 return 1;
10881}
10882
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10883/* Extracts the METHOD in the HTTP request, the txn->uri should be filled before the call */
10884static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10885smp_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]10886{
10887 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10888 struct http_txn *txn = smp->strm->txn;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10889 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10890
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10891 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10892 return 0;
10893
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10894 ptr = txn->uri;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10895
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10896 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10897 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10898
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10899 temp = get_trash_chunk();
10900 temp->str = txn->uri;
10901 temp->len = ptr - txn->uri;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10902 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10903 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10904 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10905
10906 return 1;
10907
10908}
10909
10910/* Extracts the path in the HTTP request, the txn->uri should be filled before the call */
10911static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10912smp_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]10913{
10914 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10915 struct http_txn *txn = smp->strm->txn;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10916 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10917
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10918 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10919 return 0;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10920
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10921 ptr = txn->uri;
10922
10923 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10924 ptr++;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10925
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10926 if (!*ptr)
10927 return 0;
10928
10929 ptr++; /* skip the space */
10930
10931 temp = get_trash_chunk();
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10932 ptr = temp->str = http_get_path_from_string(ptr);
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10933 if (!ptr)
10934 return 0;
10935 while (*ptr != ' ' && *ptr != '\0') /* find space after URI */
10936 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10937
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10938 smp->data.u.str = *temp;
10939 smp->data.u.str.len = ptr - temp->str;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10940 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10941 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10942
10943 return 1;
10944}
10945
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10946/* Retrieves the HTTP version from the request (either 1.0 or 1.1) and emits it
10947 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10948 */
10949static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10950smp_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]10951{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10952 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10953
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10954 if (!txn || txn->req.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10955 return 0;
10956
10957 if (txn->req.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10958 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10959 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10960 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10961
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10962 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10963 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10964 smp->flags = SMP_F_CONST;
10965 return 1;
10966
10967}
10968
10969/* Retrieves the HTTP version from the response (either 1.0 or 1.1) and emits it
10970 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10971 */
10972static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10973smp_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]10974{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10975 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10976
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10977 if (!txn || txn->rsp.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10978 return 0;
10979
10980 if (txn->rsp.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10981 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10982 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10983 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10984
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10985 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10986 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10987 smp->flags = SMP_F_CONST;
10988 return 1;
10989
10990}
10991
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10992
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10993/* Iterate over all cookies present in a message. The context is stored in
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10994 * 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]10995 * 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]10996 * the direction, multiple cookies may be parsed on the same line or not.
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10997 * 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]10998 * Accepts exactly 1 argument of type string. If the input options indicate
10999 * that no iterating is desired, then only last value is fetched if any.
William Lallemand07c8b242014-05-02 17:11:07 +0200[diff] [blame]11000 * The returned sample is of type CSTR. Can be used to parse cookies in other
11001 * files.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11002 */
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11003int 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]11004{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11005 struct http_txn *txn;
11006 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]11007 struct hdr_ctx *ctx = smp->ctx.a[2];
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11008 const struct http_msg *msg;
11009 const char *hdr_name;
11010 int hdr_name_len;
11011 char *sol;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11012 int occ = 0;
11013 int found = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11014
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11015 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]11016 return 0;
11017
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]11018 if (!ctx) {
11019 /* first call */
11020 ctx = &static_hdr_ctx;
11021 ctx->idx = 0;
11022 smp->ctx.a[2] = ctx;
11023 }
11024
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11025 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11026
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11027 txn = smp->strm->txn;
11028 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11029
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11030 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11031 msg = &txn->req;
11032 hdr_name = "Cookie";
11033 hdr_name_len = 6;
11034 } else {
11035 msg = &txn->rsp;
11036 hdr_name = "Set-Cookie";
11037 hdr_name_len = 10;
11038 }
11039
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11040 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11041 /* no explicit occurrence and single fetch => last cookie by default */
11042 occ = -1;
11043
11044 /* OK so basically here, either we want only one value and it's the
11045 * last one, or we want to iterate over all of them and we fetch the
11046 * next one.
11047 */
11048
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]11049 sol = msg->chn->buf->p;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11050 if (!(smp->flags & SMP_F_NOT_LAST)) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11051 /* search for the header from the beginning, we must first initialize
11052 * the search parameters.
11053 */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11054 smp->ctx.a[0] = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11055 ctx->idx = 0;
11056 }
11057
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11058 smp->flags |= SMP_F_VOL_HDR;
11059
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11060 while (1) {
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11061 /* Note: smp->ctx.a[0] == NULL every time we need to fetch a new header */
11062 if (!smp->ctx.a[0]) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11063 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, ctx))
11064 goto out;
11065
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11066 if (ctx->vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11067 continue;
11068
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11069 smp->ctx.a[0] = ctx->line + ctx->val;
11070 smp->ctx.a[1] = smp->ctx.a[0] + ctx->vlen;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11071 }
11072
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11073 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]11074 smp->flags |= SMP_F_CONST;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11075 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]11076 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11077 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11078 &smp->data.u.str.str,
11079 &smp->data.u.str.len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11080 if (smp->ctx.a[0]) {
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11081 found = 1;
11082 if (occ >= 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11083 /* one value was returned into smp->data.u.str.{str,len} */
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11084 smp->flags |= SMP_F_NOT_LAST;
11085 return 1;
11086 }
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11087 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11088 /* if we're looking for last occurrence, let's loop */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11089 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11090 /* all cookie headers and values were scanned. If we're looking for the
11091 * last occurrence, we may return it now.
11092 */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11093 out:
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11094 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11095 return found;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11096}
11097
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11098/* Iterate over all cookies present in a request to count how many occurrences
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11099 * 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]11100 * multiple cookies may be parsed on the same line. The returned sample is of
11101 * type UINT. Accepts exactly 1 argument of type string.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11102 */
11103static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11104smp_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]11105{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11106 struct http_txn *txn;
11107 struct hdr_idx *idx;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11108 struct hdr_ctx ctx;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11109 const struct http_msg *msg;
11110 const char *hdr_name;
11111 int hdr_name_len;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11112 int cnt;
11113 char *val_beg, *val_end;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11114 char *sol;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11115
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11116 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]11117 return 0;
11118
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11119 CHECK_HTTP_MESSAGE_FIRST();
11120
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11121 txn = smp->strm->txn;
11122 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11123
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11124 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11125 msg = &txn->req;
11126 hdr_name = "Cookie";
11127 hdr_name_len = 6;
11128 } else {
11129 msg = &txn->rsp;
11130 hdr_name = "Set-Cookie";
11131 hdr_name_len = 10;
11132 }
11133
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]11134 sol = msg->chn->buf->p;
Willy Tarreau46787ed2012-04-11 17:28:40 +0200[diff] [blame]11135 val_end = val_beg = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11136 ctx.idx = 0;
11137 cnt = 0;
11138
11139 while (1) {
11140 /* Note: val_beg == NULL every time we need to fetch a new header */
11141 if (!val_beg) {
11142 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, &ctx))
11143 break;
11144
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11145 if (ctx.vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11146 continue;
11147
11148 val_beg = ctx.line + ctx.val;
11149 val_end = val_beg + ctx.vlen;
11150 }
11151
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11152 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]11153 smp->flags |= SMP_F_CONST;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11154 while ((val_beg = extract_cookie_value(val_beg, val_end,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11155 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11156 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11157 &smp->data.u.str.str,
11158 &smp->data.u.str.len))) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11159 cnt++;
11160 }
11161 }
11162
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11163 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11164 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11165 smp->flags |= SMP_F_VOL_HDR;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11166 return 1;
11167}
11168
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]11169/* Fetch an cookie's integer value. The integer value is returned. It
11170 * takes a mandatory argument of type string. It relies on smp_fetch_cookie().
11171 */
11172static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11173smp_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]11174{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11175 int ret = smp_fetch_cookie(args, smp, kw, private);
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]11176
11177 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11178 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11179 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]11180 }
11181
11182 return ret;
11183}
11184
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]11185/************************************************************************/
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]11186/* The code below is dedicated to sample fetches */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]11187/************************************************************************/
11188
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11189/*
11190 * Given a path string and its length, find the position of beginning of the
11191 * query string. Returns NULL if no query string is found in the path.
11192 *
11193 * Example: if path = "/foo/bar/fubar?yo=mama;ye=daddy", and n = 22:
11194 *
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11195 * find_query_string(path, n, '?') points to "yo=mama;ye=daddy" string.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11196 */
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11197static inline char *find_param_list(char *path, size_t path_l, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11198{
11199 char *p;
Emeric Brun485479d2010-09-23 18:02:19 +0200[diff] [blame]11200
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11201 p = memchr(path, delim, path_l);
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11202 return p ? p + 1 : NULL;
11203}
11204
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11205static inline int is_param_delimiter(char c, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11206{
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11207 return c == '&' || c == ';' || c == delim;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11208}
11209
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11210/* after increasing a pointer value, it can exceed the first buffer
11211 * size. This function transform the value of <ptr> according with
11212 * the expected position. <chunks> is an array of the one or two
11213 * avalaible chunks. The first value is the start of the first chunk,
11214 * the second value if the end+1 of the first chunks. The third value
11215 * is NULL or the start of the second chunk and the fourth value is
11216 * the end+1 of the second chunk. The function returns 1 if does a
11217 * wrap, else returns 0.
11218 */
11219static inline int fix_pointer_if_wrap(const char **chunks, const char **ptr)
11220{
11221 if (*ptr < chunks[1])
11222 return 0;
11223 if (!chunks[2])
11224 return 0;
11225 *ptr = chunks[2] + ( *ptr - chunks[1] );
11226 return 1;
11227}
11228
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11229/*
11230 * Given a url parameter, find the starting position of the first occurence,
11231 * or NULL if the parameter is not found.
11232 *
11233 * Example: if query_string is "yo=mama;ye=daddy" and url_param_name is "ye",
11234 * the function will return query_string+8.
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11235 *
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11236 * Warning: this function returns a pointer that can point to the first chunk
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11237 * or the second chunk. The caller must be check the position before using the
11238 * result.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11239 */
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11240static const char *
11241find_url_param_pos(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11242 const char* url_param_name, size_t url_param_name_l,
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11243 char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11244{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11245 const char *pos, *last, *equal;
11246 const char **bufs = chunks;
11247 int l1, l2;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11248
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11249
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11250 pos = bufs[0];
11251 last = bufs[1];
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11252 while (pos < last) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11253 /* Check the equal. */
11254 equal = pos + url_param_name_l;
11255 if (fix_pointer_if_wrap(chunks, &equal)) {
11256 if (equal >= chunks[3])
11257 return NULL;
11258 } else {
11259 if (equal >= chunks[1])
11260 return NULL;
11261 }
11262 if (*equal == '=') {
11263 if (pos + url_param_name_l > last) {
11264 /* process wrap case, we detect a wrap. In this case, the
11265 * comparison is performed in two parts.
11266 */
11267
11268 /* This is the end, we dont have any other chunk. */
11269 if (bufs != chunks || !bufs[2])
11270 return NULL;
11271
11272 /* Compute the length of each part of the comparison. */
11273 l1 = last - pos;
11274 l2 = url_param_name_l - l1;
11275
11276 /* The second buffer is too short to contain the compared string. */
11277 if (bufs[2] + l2 > bufs[3])
11278 return NULL;
11279
11280 if (memcmp(pos, url_param_name, l1) == 0 &&
11281 memcmp(bufs[2], url_param_name+l1, l2) == 0)
11282 return pos;
11283
11284 /* Perform wrapping and jump the string who fail the comparison. */
11285 bufs += 2;
11286 pos = bufs[0] + l2;
11287 last = bufs[1];
11288
11289 } else {
11290 /* process a simple comparison. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11291 if (memcmp(pos, url_param_name, url_param_name_l) == 0)
11292 return pos;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11293 pos += url_param_name_l + 1;
11294 if (fix_pointer_if_wrap(chunks, &pos))
11295 last = bufs[2];
11296 }
11297 }
11298
11299 while (1) {
11300 /* Look for the next delimiter. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11301 while (pos < last && !is_param_delimiter(*pos, delim))
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11302 pos++;
11303 if (pos < last)
11304 break;
11305 /* process buffer wrapping. */
11306 if (bufs != chunks || !bufs[2])
11307 return NULL;
11308 bufs += 2;
11309 pos = bufs[0];
11310 last = bufs[1];
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11311 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11312 pos++;
11313 }
11314 return NULL;
11315}
11316
11317/*
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11318 * Given a url parameter name and a query string, find the next value.
11319 * An empty url_param_name matches the first available parameter.
11320 * If the parameter is found, 1 is returned and *vstart / *vend are updated to
11321 * respectively provide a pointer to the value and its end.
11322 * Otherwise, 0 is returned and vstart/vend are not modified.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11323 */
11324static int
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11325find_next_url_param(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11326 const char* url_param_name, size_t url_param_name_l,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11327 const char **vstart, const char **vend, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11328{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11329 const char *arg_start, *qs_end;
11330 const char *value_start, *value_end;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11331
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11332 arg_start = chunks[0];
11333 qs_end = chunks[1];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11334 if (url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11335 /* Looks for an argument name. */
11336 arg_start = find_url_param_pos(chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11337 url_param_name, url_param_name_l,
11338 delim);
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11339 /* Check for wrapping. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11340 if (arg_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11341 qs_end = chunks[3];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11342 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11343 if (!arg_start)
11344 return 0;
11345
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11346 if (!url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11347 while (1) {
11348 /* looks for the first argument. */
11349 value_start = memchr(arg_start, '=', qs_end - arg_start);
11350 if (!value_start) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11351 /* Check for wrapping. */
11352 if (arg_start >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11353 arg_start < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11354 chunks[2]) {
11355 arg_start = chunks[2];
11356 qs_end = chunks[3];
11357 continue;
11358 }
11359 return 0;
11360 }
11361 break;
11362 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11363 value_start++;
11364 }
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11365 else {
11366 /* Jump the argument length. */
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11367 value_start = arg_start + url_param_name_l + 1;
11368
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11369 /* Check for pointer wrapping. */
11370 if (fix_pointer_if_wrap(chunks, &value_start)) {
11371 /* Update the end pointer. */
11372 qs_end = chunks[3];
11373
11374 /* Check for overflow. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11375 if (value_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11376 return 0;
11377 }
11378 }
11379
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11380 value_end = value_start;
11381
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11382 while (1) {
11383 while ((value_end < qs_end) && !is_param_delimiter(*value_end, delim))
11384 value_end++;
11385 if (value_end < qs_end)
11386 break;
11387 /* process buffer wrapping. */
11388 if (value_end >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11389 value_end < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11390 chunks[2]) {
11391 value_end = chunks[2];
11392 qs_end = chunks[3];
11393 continue;
11394 }
11395 break;
11396 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11397
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11398 *vstart = value_start;
11399 *vend = value_end;
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11400 return 1;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11401}
11402
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11403/* This scans a URL-encoded query string. It takes an optionally wrapping
11404 * string whose first contigous chunk has its beginning in ctx->a[0] and end
11405 * in ctx->a[1], and the optional second part in (ctx->a[2]..ctx->a[3]). The
11406 * pointers are updated for next iteration before leaving.
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11407 */
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11408static int
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11409smp_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]11410{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11411 const char *vstart, *vend;
11412 struct chunk *temp;
11413 const char **chunks = (const char **)smp->ctx.a;
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11414
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11415 if (!find_next_url_param(chunks,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11416 name, name_len,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11417 &vstart, &vend,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11418 delim))
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11419 return 0;
11420
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11421 /* Create sample. If the value is contiguous, return the pointer as CONST,
11422 * if the value is wrapped, copy-it in a buffer.
11423 */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11424 smp->data.type = SMP_T_STR;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11425 if (chunks[2] &&
11426 vstart >= chunks[0] && vstart <= chunks[1] &&
11427 vend >= chunks[2] && vend <= chunks[3]) {
11428 /* Wrapped case. */
11429 temp = get_trash_chunk();
11430 memcpy(temp->str, vstart, chunks[1] - vstart);
11431 memcpy(temp->str + ( chunks[1] - vstart ), chunks[2], vend - chunks[2]);
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11432 smp->data.u.str.str = temp->str;
11433 smp->data.u.str.len = ( chunks[1] - vstart ) + ( vend - chunks[2] );
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11434 } else {
11435 /* Contiguous case. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11436 smp->data.u.str.str = (char *)vstart;
11437 smp->data.u.str.len = vend - vstart;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11438 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
11439 }
11440
11441 /* Update context, check wrapping. */
11442 chunks[0] = vend;
11443 if (chunks[2] && vend >= chunks[2] && vend <= chunks[3]) {
11444 chunks[1] = chunks[3];
11445 chunks[2] = NULL;
11446 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11447
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11448 if (chunks[0] < chunks[1])
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11449 smp->flags |= SMP_F_NOT_LAST;
11450
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11451 return 1;
11452}
11453
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11454/* This function iterates over each parameter of the query string. It uses
11455 * 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]11456 * parameter. Since it uses smp_fetch_param(), ctx->a[2..3] are both NULL.
11457 * An optional parameter name is passed in args[0], otherwise any parameter is
11458 * considered. It supports an optional delimiter argument for the beginning of
11459 * the string in args[1], which defaults to "?".
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11460 */
11461static int
11462smp_fetch_url_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11463{
11464 struct http_msg *msg;
11465 char delim = '?';
11466 const char *name;
11467 int name_len;
11468
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11469 if (!args ||
11470 (args[0].type && args[0].type != ARGT_STR) ||
11471 (args[1].type && args[1].type != ARGT_STR))
11472 return 0;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11473
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11474 name = "";
11475 name_len = 0;
11476 if (args->type == ARGT_STR) {
11477 name = args->data.str.str;
11478 name_len = args->data.str.len;
11479 }
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11480
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11481 if (args[1].type)
11482 delim = *args[1].data.str.str;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11483
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11484 if (!smp->ctx.a[0]) { // first call, find the query string
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11485 CHECK_HTTP_MESSAGE_FIRST();
11486
11487 msg = &smp->strm->txn->req;
11488
11489 smp->ctx.a[0] = find_param_list(msg->chn->buf->p + msg->sl.rq.u,
11490 msg->sl.rq.u_l, delim);
11491 if (!smp->ctx.a[0])
11492 return 0;
11493
11494 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]11495
11496 /* Assume that the context is filled with NULL pointer
11497 * before the first call.
11498 * smp->ctx.a[2] = NULL;
11499 * smp->ctx.a[3] = NULL;
11500 */
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11501 }
11502
11503 return smp_fetch_param(delim, name, name_len, args, smp, kw, private);
11504}
11505
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11506/* This function iterates over each parameter of the body. This requires
11507 * that the body has been waited for using http-buffer-request. It uses
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11508 * ctx->a[0] and ctx->a[1] to store the beginning and end of the first
11509 * contigous part of the body, and optionally ctx->a[2..3] to reference the
11510 * optional second part if the body wraps at the end of the buffer. An optional
11511 * parameter name is passed in args[0], otherwise any parameter is considered.
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11512 */
11513static int
11514smp_fetch_body_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11515{
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11516 struct http_msg *msg;
11517 unsigned long len;
11518 unsigned long block1;
11519 char *body;
11520 const char *name;
11521 int name_len;
11522
11523 if (!args || (args[0].type && args[0].type != ARGT_STR))
11524 return 0;
11525
11526 name = "";
11527 name_len = 0;
11528 if (args[0].type == ARGT_STR) {
11529 name = args[0].data.str.str;
11530 name_len = args[0].data.str.len;
11531 }
11532
11533 if (!smp->ctx.a[0]) { // first call, find the query string
11534 CHECK_HTTP_MESSAGE_FIRST();
11535
11536 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11537 msg = &smp->strm->txn->req;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11538 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11539 msg = &smp->strm->txn->rsp;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11540
11541 len = http_body_bytes(msg);
11542 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
11543
11544 block1 = len;
11545 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
11546 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
11547
11548 if (block1 == len) {
11549 /* buffer is not wrapped (or empty) */
11550 smp->ctx.a[0] = body;
11551 smp->ctx.a[1] = body + len;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11552
11553 /* Assume that the context is filled with NULL pointer
11554 * before the first call.
11555 * smp->ctx.a[2] = NULL;
11556 * smp->ctx.a[3] = NULL;
11557 */
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11558 }
11559 else {
11560 /* buffer is wrapped, we need to defragment it */
11561 smp->ctx.a[0] = body;
11562 smp->ctx.a[1] = body + block1;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11563 smp->ctx.a[2] = msg->chn->buf->data;
11564 smp->ctx.a[3] = msg->chn->buf->data + ( len - block1 );
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11565 }
11566 }
11567 return smp_fetch_param('&', name, name_len, args, smp, kw, private);
11568}
11569
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11570/* Return the signed integer value for the specified url parameter (see url_param
11571 * above).
11572 */
11573static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11574smp_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]11575{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11576 int ret = smp_fetch_url_param(args, smp, kw, private);
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11577
11578 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11579 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11580 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]11581 }
11582
11583 return ret;
11584}
11585
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11586/* This produces a 32-bit hash of the concatenation of the first occurrence of
11587 * the Host header followed by the path component if it begins with a slash ('/').
11588 * This means that '*' will not be added, resulting in exactly the first Host
11589 * entry. If no Host header is found, then the path is used. The resulting value
11590 * is hashed using the url hash followed by a full avalanche hash and provides a
11591 * 32-bit integer value. This fetch is useful for tracking per-URL activity on
11592 * high-traffic sites without having to store whole paths.
11593 * this differs from the base32 functions in that it includes the url parameters
11594 * as well as the path
11595 */
11596static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11597smp_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]11598{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11599 struct http_txn *txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11600 struct hdr_ctx ctx;
11601 unsigned int hash = 0;
11602 char *ptr, *beg, *end;
11603 int len;
11604
11605 CHECK_HTTP_MESSAGE_FIRST();
11606
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11607 txn = smp->strm->txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11608 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11609 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]11610 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
11611 ptr = ctx.line + ctx.val;
11612 len = ctx.vlen;
11613 while (len--)
11614 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
11615 }
11616
11617 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11618 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]11619 beg = http_get_path(txn);
11620 if (!beg)
11621 beg = end;
11622
11623 for (ptr = beg; ptr < end ; ptr++);
11624
11625 if (beg < ptr && *beg == '/') {
11626 while (beg < ptr)
11627 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
11628 }
11629 hash = full_hash(hash);
11630
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11631 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11632 smp->data.u.sint = hash;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11633 smp->flags = SMP_F_VOL_1ST;
11634 return 1;
11635}
11636
11637/* This concatenates the source address with the 32-bit hash of the Host and
11638 * URL as returned by smp_fetch_base32(). The idea is to have per-source and
11639 * per-url counters. The result is a binary block from 8 to 20 bytes depending
11640 * on the source address length. The URL hash is stored before the address so
11641 * that in environments where IPv6 is insignificant, truncating the output to
11642 * 8 bytes would still work.
11643 */
11644static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11645smp_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]11646{
11647 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11648 struct connection *cli_conn = objt_conn(smp->sess->origin);
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]11649 unsigned int hash;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11650
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11651 if (!smp_fetch_url32(args, smp, kw, private))
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11652 return 0;
11653
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]11654 /* The returned hash is a 32 bytes integer. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11655 hash = smp->data.u.sint;
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]11656
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11657 temp = get_trash_chunk();
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]11658 memcpy(temp->str + temp->len, &hash, sizeof(hash));
11659 temp->len += sizeof(hash);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11660
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11661 switch (cli_conn->addr.from.ss_family) {
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11662 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11663 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]11664 temp->len += 4;
11665 break;
11666 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11667 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]11668 temp->len += 16;
11669 break;
11670 default:
11671 return 0;
11672 }
11673
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11674 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11675 smp->data.type = SMP_T_BIN;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11676 return 1;
11677}
11678
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11679/* This function is used to validate the arguments passed to any "hdr" fetch
11680 * keyword. These keywords support an optional positive or negative occurrence
11681 * number. We must ensure that the number is greater than -MAX_HDR_HISTORY. It
11682 * is assumed that the types are already the correct ones. Returns 0 on error,
11683 * non-zero if OK. If <err> is not NULL, it will be filled with a pointer to an
11684 * error message in case of error, that the caller is responsible for freeing.
11685 * The initial location must either be freeable or NULL.
11686 */
Thierry FOURNIER49f45af2014-12-08 19:50:43 +0100[diff] [blame]11687int val_hdr(struct arg *arg, char **err_msg)
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11688{
11689 if (arg && arg[1].type == ARGT_SINT && arg[1].data.sint < -MAX_HDR_HISTORY) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]11690 memprintf(err_msg, "header occurrence must be >= %d", -MAX_HDR_HISTORY);
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11691 return 0;
11692 }
11693 return 1;
11694}
11695
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11696/* takes an UINT value on input supposed to represent the time since EPOCH,
11697 * adds an optional offset found in args[0] and emits a string representing
11698 * the date in RFC-1123/5322 format.
11699 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11700static int sample_conv_http_date(const struct arg *args, struct sample *smp, void *private)
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11701{
Cyril Bontéf78d8962016-01-22 19:40:28 +0100[diff] [blame]11702 const char day[7][4] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11703 const char mon[12][4] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
11704 struct chunk *temp;
11705 struct tm *tm;
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11706 /* 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]11707 time_t curr_date = smp->data.u.sint & 0x007fffffffffffffLL;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11708
11709 /* add offset */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11710 if (args && (args[0].type == ARGT_SINT))
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11711 curr_date += args[0].data.sint;
11712
11713 tm = gmtime(&curr_date);
Thierry FOURNIERfac9ccf2015-07-08 00:15:20 +0200[diff] [blame]11714 if (!tm)
11715 return 0;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11716
11717 temp = get_trash_chunk();
11718 temp->len = snprintf(temp->str, temp->size - temp->len,
11719 "%s, %02d %s %04d %02d:%02d:%02d GMT",
11720 day[tm->tm_wday], tm->tm_mday, mon[tm->tm_mon], 1900+tm->tm_year,
11721 tm->tm_hour, tm->tm_min, tm->tm_sec);
11722
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11723 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11724 smp->data.type = SMP_T_STR;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11725 return 1;
11726}
11727
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11728/* Match language range with language tag. RFC2616 14.4:
11729 *
11730 * A language-range matches a language-tag if it exactly equals
11731 * the tag, or if it exactly equals a prefix of the tag such
11732 * that the first tag character following the prefix is "-".
11733 *
11734 * Return 1 if the strings match, else return 0.
11735 */
11736static inline int language_range_match(const char *range, int range_len,
11737 const char *tag, int tag_len)
11738{
11739 const char *end = range + range_len;
11740 const char *tend = tag + tag_len;
11741 while (range < end) {
11742 if (*range == '-' && tag == tend)
11743 return 1;
11744 if (*range != *tag || tag == tend)
11745 return 0;
11746 range++;
11747 tag++;
11748 }
11749 /* Return true only if the last char of the tag is matched. */
11750 return tag == tend;
11751}
11752
11753/* Arguments: The list of expected value, the number of parts returned and the separator */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11754static int sample_conv_q_prefered(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11755{
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11756 const char *al = smp->data.u.str.str;
11757 const char *end = al + smp->data.u.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11758 const char *token;
11759 int toklen;
11760 int qvalue;
11761 const char *str;
11762 const char *w;
11763 int best_q = 0;
11764
11765 /* Set the constant to the sample, because the output of the
11766 * function will be peek in the constant configuration string.
11767 */
11768 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11769 smp->data.u.str.size = 0;
11770 smp->data.u.str.str = "";
11771 smp->data.u.str.len = 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11772
11773 /* Parse the accept language */
11774 while (1) {
11775
11776 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11777 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11778 al++;
11779 if (al >= end)
11780 break;
11781
11782 /* Start of the fisrt word. */
11783 token = al;
11784
11785 /* Look for separator: isspace(), ',' or ';'. Next value if 0 length word. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11786 while (al < end && *al != ';' && *al != ',' && !isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11787 al++;
11788 if (al == token)
11789 goto expect_comma;
11790
11791 /* Length of the token. */
11792 toklen = al - token;
11793 qvalue = 1000;
11794
11795 /* Check if the token exists in the list. If the token not exists,
11796 * jump to the next token.
11797 */
11798 str = args[0].data.str.str;
11799 w = str;
11800 while (1) {
11801 if (*str == ';' || *str == '\0') {
11802 if (language_range_match(token, toklen, w, str-w))
11803 goto look_for_q;
11804 if (*str == '\0')
11805 goto expect_comma;
11806 w = str + 1;
11807 }
11808 str++;
11809 }
11810 goto expect_comma;
11811
11812look_for_q:
11813
11814 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11815 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11816 al++;
11817 if (al >= end)
11818 goto process_value;
11819
11820 /* If ',' is found, process the result */
11821 if (*al == ',')
11822 goto process_value;
11823
11824 /* If the character is different from ';', look
11825 * for the end of the header part in best effort.
11826 */
11827 if (*al != ';')
11828 goto expect_comma;
11829
11830 /* Assumes that the char is ';', now expect "q=". */
11831 al++;
11832
11833 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11834 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11835 al++;
11836 if (al >= end)
11837 goto process_value;
11838
11839 /* Expect 'q'. If no 'q', continue in best effort */
11840 if (*al != 'q')
11841 goto process_value;
11842 al++;
11843
11844 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11845 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11846 al++;
11847 if (al >= end)
11848 goto process_value;
11849
11850 /* Expect '='. If no '=', continue in best effort */
11851 if (*al != '=')
11852 goto process_value;
11853 al++;
11854
11855 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11856 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11857 al++;
11858 if (al >= end)
11859 goto process_value;
11860
11861 /* Parse the q value. */
11862 qvalue = parse_qvalue(al, &al);
11863
11864process_value:
11865
11866 /* If the new q value is the best q value, then store the associated
11867 * language in the response. If qvalue is the biggest value (1000),
11868 * break the process.
11869 */
11870 if (qvalue > best_q) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11871 smp->data.u.str.str = (char *)w;
11872 smp->data.u.str.len = str - w;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11873 if (qvalue >= 1000)
11874 break;
11875 best_q = qvalue;
11876 }
11877
11878expect_comma:
11879
11880 /* Expect comma or end. If the end is detected, quit the loop. */
11881 while (al < end && *al != ',')
11882 al++;
11883 if (al >= end)
11884 break;
11885
11886 /* Comma is found, jump it and restart the analyzer. */
11887 al++;
11888 }
11889
11890 /* Set default value if required. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11891 if (smp->data.u.str.len == 0 && args[1].type == ARGT_STR) {
11892 smp->data.u.str.str = args[1].data.str.str;
11893 smp->data.u.str.len = args[1].data.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11894 }
11895
11896 /* Return true only if a matching language was found. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11897 return smp->data.u.str.len != 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11898}
11899
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11900/* This fetch url-decode any input string. */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11901static int sample_conv_url_dec(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11902{
11903 /* If the constant flag is set or if not size is avalaible at
11904 * the end of the buffer, copy the string in other buffer
11905 * before decoding.
11906 */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11907 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]11908 struct chunk *str = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11909 memcpy(str->str, smp->data.u.str.str, smp->data.u.str.len);
11910 smp->data.u.str.str = str->str;
11911 smp->data.u.str.size = str->size;
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11912 smp->flags &= ~SMP_F_CONST;
11913 }
11914
11915 /* Add final \0 required by url_decode(), and convert the input string. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11916 smp->data.u.str.str[smp->data.u.str.len] = '\0';
11917 smp->data.u.str.len = url_decode(smp->data.u.str.str);
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11918 return 1;
11919}
11920
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11921static int smp_conv_req_capture(const struct arg *args, struct sample *smp, void *private)
11922{
11923 struct proxy *fe = strm_fe(smp->strm);
11924 int idx, i;
11925 struct cap_hdr *hdr;
11926 int len;
11927
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11928 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11929 return 0;
11930
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11931 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11932
11933 /* Check the availibity of the capture id. */
11934 if (idx > fe->nb_req_cap - 1)
11935 return 0;
11936
11937 /* Look for the original configuration. */
11938 for (hdr = fe->req_cap, i = fe->nb_req_cap - 1;
11939 hdr != NULL && i != idx ;
11940 i--, hdr = hdr->next);
11941 if (!hdr)
11942 return 0;
11943
11944 /* check for the memory allocation */
11945 if (smp->strm->req_cap[hdr->index] == NULL)
11946 smp->strm->req_cap[hdr->index] = pool_alloc2(hdr->pool);
11947 if (smp->strm->req_cap[hdr->index] == NULL)
11948 return 0;
11949
11950 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11951 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11952 if (len > hdr->len)
11953 len = hdr->len;
11954
11955 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11956 memcpy(smp->strm->req_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11957 smp->strm->req_cap[idx][len] = '\0';
11958
11959 return 1;
11960}
11961
11962static int smp_conv_res_capture(const struct arg *args, struct sample *smp, void *private)
11963{
11964 struct proxy *fe = strm_fe(smp->strm);
11965 int idx, i;
11966 struct cap_hdr *hdr;
11967 int len;
11968
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11969 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11970 return 0;
11971
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11972 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11973
11974 /* Check the availibity of the capture id. */
11975 if (idx > fe->nb_rsp_cap - 1)
11976 return 0;
11977
11978 /* Look for the original configuration. */
11979 for (hdr = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
11980 hdr != NULL && i != idx ;
11981 i--, hdr = hdr->next);
11982 if (!hdr)
11983 return 0;
11984
11985 /* check for the memory allocation */
11986 if (smp->strm->res_cap[hdr->index] == NULL)
11987 smp->strm->res_cap[hdr->index] = pool_alloc2(hdr->pool);
11988 if (smp->strm->res_cap[hdr->index] == NULL)
11989 return 0;
11990
11991 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11992 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11993 if (len > hdr->len)
11994 len = hdr->len;
11995
11996 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11997 memcpy(smp->strm->res_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11998 smp->strm->res_cap[idx][len] = '\0';
11999
12000 return 1;
12001}
12002
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12003/* This function executes one of the set-{method,path,query,uri} actions. It
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12004 * takes the string from the variable 'replace' with length 'len', then modifies
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12005 * the relevant part of the request line accordingly. Then it updates various
12006 * pointers to the next elements which were moved, and the total buffer length.
12007 * It finds the action to be performed in p[2], previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12008 * parse_set_req_line(). It returns 0 in case of success, -1 in case of internal
12009 * error, though this can be revisited when this code is finally exploited.
12010 *
12011 * 'action' can be '0' to replace method, '1' to replace path, '2' to replace
12012 * query string and 3 to replace uri.
12013 *
12014 * In query string case, the mark question '?' must be set at the start of the
12015 * string by the caller, event if the replacement query string is empty.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12016 */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12017int http_replace_req_line(int action, const char *replace, int len,
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]12018 struct proxy *px, struct stream *s)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12019{
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]12020 struct http_txn *txn = s->txn;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12021 char *cur_ptr, *cur_end;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12022 int offset = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12023 int delta;
12024
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12025 switch (action) {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12026 case 0: // method
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]12027 cur_ptr = s->req.buf->p;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12028 cur_end = cur_ptr + txn->req.sl.rq.m_l;
12029
12030 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12031 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12032 txn->req.sl.rq.m_l += delta;
12033 txn->req.sl.rq.u += delta;
12034 txn->req.sl.rq.v += delta;
12035 break;
12036
12037 case 1: // path
12038 cur_ptr = http_get_path(txn);
12039 if (!cur_ptr)
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]12040 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12041
12042 cur_end = cur_ptr;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]12043 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]12044 cur_end++;
12045
12046 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12047 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12048 txn->req.sl.rq.u_l += delta;
12049 txn->req.sl.rq.v += delta;
12050 break;
12051
12052 case 2: // query
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12053 offset = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]12054 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12055 cur_end = cur_ptr + txn->req.sl.rq.u_l;
12056 while (cur_ptr < cur_end && *cur_ptr != '?')
12057 cur_ptr++;
12058
12059 /* skip the question mark or indicate that we must insert it
12060 * (but only if the format string is not empty then).
12061 */
12062 if (cur_ptr < cur_end)
12063 cur_ptr++;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12064 else if (len > 1)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12065 offset = 0;
12066
12067 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12068 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12069 txn->req.sl.rq.u_l += delta;
12070 txn->req.sl.rq.v += delta;
12071 break;
12072
12073 case 3: // uri
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]12074 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12075 cur_end = cur_ptr + txn->req.sl.rq.u_l;
12076
12077 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12078 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12079 txn->req.sl.rq.u_l += delta;
12080 txn->req.sl.rq.v += delta;
12081 break;
12082
12083 default:
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12084 return -1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12085 }
12086
12087 /* commit changes and adjust end of message */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12088 delta = buffer_replace2(s->req.buf, cur_ptr, cur_end, replace + offset, len - offset);
Thierry FOURNIER7f6192c2015-04-26 18:01:40 +0200[diff] [blame]12089 txn->req.sl.rq.l += delta;
12090 txn->hdr_idx.v[0].len += delta;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12091 http_msg_move_end(&txn->req, delta);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12092 return 0;
12093}
12094
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12095/* This function replace the HTTP status code and the associated message. The
12096 * variable <status> contains the new status code. This function never fails.
12097 */
12098void http_set_status(unsigned int status, struct stream *s)
12099{
12100 struct http_txn *txn = s->txn;
12101 char *cur_ptr, *cur_end;
12102 int delta;
12103 char *res;
12104 int c_l;
12105 const char *msg;
12106 int msg_len;
12107
12108 chunk_reset(&trash);
12109
12110 res = ultoa_o(status, trash.str, trash.size);
12111 c_l = res - trash.str;
12112
12113 trash.str[c_l] = ' ';
12114 trash.len = c_l + 1;
12115
12116 msg = get_reason(status);
12117 msg_len = strlen(msg);
12118
12119 strncpy(&trash.str[trash.len], msg, trash.size - trash.len);
12120 trash.len += msg_len;
12121
12122 cur_ptr = s->res.buf->p + txn->rsp.sl.st.c;
12123 cur_end = s->res.buf->p + txn->rsp.sl.st.r + txn->rsp.sl.st.r_l;
12124
12125 /* commit changes and adjust message */
12126 delta = buffer_replace2(s->res.buf, cur_ptr, cur_end, trash.str, trash.len);
12127
12128 /* adjust res line offsets and lengths */
12129 txn->rsp.sl.st.r += c_l - txn->rsp.sl.st.c_l;
12130 txn->rsp.sl.st.c_l = c_l;
12131 txn->rsp.sl.st.r_l = msg_len;
12132
12133 delta = trash.len - (cur_end - cur_ptr);
12134 txn->rsp.sl.st.l += delta;
12135 txn->hdr_idx.v[0].len += delta;
12136 http_msg_move_end(&txn->rsp, delta);
12137}
12138
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12139/* This function executes one of the set-{method,path,query,uri} actions. It
12140 * builds a string in the trash from the specified format string. It finds
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]12141 * the action to be performed in <http.action>, previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12142 * parse_set_req_line(). The replacement action is excuted by the function
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]12143 * http_action_set_req_line(). It always returns ACT_RET_CONT. If an error
12144 * occurs the action is canceled, but the rule processing continue.
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12145 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12146enum act_return http_action_set_req_line(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12147 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12148{
12149 chunk_reset(&trash);
12150
12151 /* If we have to create a query string, prepare a '?'. */
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12152 if (rule->arg.http.action == 2)
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12153 trash.str[trash.len++] = '?';
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12154 trash.len += build_logline(s, trash.str + trash.len, trash.size - trash.len, &rule->arg.http.logfmt);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12155
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12156 http_replace_req_line(rule->arg.http.action, trash.str, trash.len, px, s);
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12157 return ACT_RET_CONT;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12158}
12159
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12160/* This function is just a compliant action wrapper for "set-status". */
12161enum act_return action_http_set_status(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12162 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12163{
12164 http_set_status(rule->arg.status.code, s);
12165 return ACT_RET_CONT;
12166}
12167
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12168/* parse an http-request action among :
12169 * set-method
12170 * set-path
12171 * set-query
12172 * set-uri
12173 *
12174 * All of them accept a single argument of type string representing a log-format.
12175 * The resulting rule makes use of arg->act.p[0..1] to store the log-format list
12176 * 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]12177 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12178 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12179enum act_parse_ret parse_set_req_line(const char **args, int *orig_arg, struct proxy *px,
12180 struct act_rule *rule, char **err)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12181{
12182 int cur_arg = *orig_arg;
12183
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12184 rule->action = ACT_CUSTOM;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12185
12186 switch (args[0][4]) {
12187 case 'm' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12188 rule->arg.http.action = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12189 rule->action_ptr = http_action_set_req_line;
12190 break;
12191 case 'p' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12192 rule->arg.http.action = 1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12193 rule->action_ptr = http_action_set_req_line;
12194 break;
12195 case 'q' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12196 rule->arg.http.action = 2;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12197 rule->action_ptr = http_action_set_req_line;
12198 break;
12199 case 'u' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12200 rule->arg.http.action = 3;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12201 rule->action_ptr = http_action_set_req_line;
12202 break;
12203 default:
12204 memprintf(err, "internal error: unhandled action '%s'", args[0]);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12205 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12206 }
12207
12208 if (!*args[cur_arg] ||
12209 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
12210 memprintf(err, "expects exactly 1 argument <format>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12211 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12212 }
12213
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12214 LIST_INIT(&rule->arg.http.logfmt);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12215 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12216 parse_logformat_string(args[cur_arg], proxy, &rule->arg.http.logfmt, LOG_OPT_HTTP,
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12217 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
12218 proxy->conf.args.file, proxy->conf.args.line);
12219
12220 (*orig_arg)++;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12221 return ACT_RET_PRS_OK;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12222}
12223
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12224/* parse set-status action:
12225 * This action accepts a single argument of type int representing
12226 * an http status code. It returns ACT_RET_PRS_OK on success,
12227 * ACT_RET_PRS_ERR on error.
12228 */
12229enum act_parse_ret parse_http_set_status(const char **args, int *orig_arg, struct proxy *px,
12230 struct act_rule *rule, char **err)
12231{
12232 char *error;
12233
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12234 rule->action = ACT_CUSTOM;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12235 rule->action_ptr = action_http_set_status;
12236
12237 /* Check if an argument is available */
12238 if (!*args[*orig_arg]) {
12239 memprintf(err, "expects exactly 1 argument <status>");
12240 return ACT_RET_PRS_ERR;
12241 }
12242
12243 /* convert status code as integer */
12244 rule->arg.status.code = strtol(args[*orig_arg], &error, 10);
12245 if (*error != '\0' || rule->arg.status.code < 100 || rule->arg.status.code > 999) {
12246 memprintf(err, "expects an integer status code between 100 and 999");
12247 return ACT_RET_PRS_ERR;
12248 }
12249
12250 (*orig_arg)++;
12251 return ACT_RET_PRS_OK;
12252}
12253
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12254/* This function executes the "capture" action. It executes a fetch expression,
12255 * turns the result into a string and puts it in a capture slot. It always
12256 * returns 1. If an error occurs the action is cancelled, but the rule
12257 * processing continues.
12258 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12259enum act_return http_action_req_capture(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12260 struct session *sess, struct stream *s, int flags)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12261{
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12262 struct sample *key;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12263 struct cap_hdr *h = rule->arg.cap.hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12264 char **cap = s->req_cap;
12265 int len;
12266
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12267 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]12268 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12269 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12270
12271 if (cap[h->index] == NULL)
12272 cap[h->index] = pool_alloc2(h->pool);
12273
12274 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12275 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12276
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12277 len = key->data.u.str.len;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12278 if (len > h->len)
12279 len = h->len;
12280
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12281 memcpy(cap[h->index], key->data.u.str.str, len);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12282 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12283 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12284}
12285
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12286/* This function executes the "capture" action and store the result in a
12287 * capture slot if exists. It executes a fetch expression, turns the result
12288 * into a string and puts it in a capture slot. It always returns 1. If an
12289 * error occurs the action is cancelled, but the rule processing continues.
12290 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12291enum 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]12292 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12293{
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12294 struct sample *key;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12295 struct cap_hdr *h;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12296 char **cap = s->req_cap;
12297 struct proxy *fe = strm_fe(s);
12298 int len;
12299 int i;
12300
12301 /* Look for the original configuration. */
12302 for (h = fe->req_cap, i = fe->nb_req_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12303 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12304 i--, h = h->next);
12305 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12306 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12307
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12308 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]12309 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12310 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12311
12312 if (cap[h->index] == NULL)
12313 cap[h->index] = pool_alloc2(h->pool);
12314
12315 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12316 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12317
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12318 len = key->data.u.str.len;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12319 if (len > h->len)
12320 len = h->len;
12321
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12322 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12323 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12324 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12325}
12326
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12327/* parse an "http-request capture" action. It takes a single argument which is
12328 * a sample fetch expression. It stores the expression into arg->act.p[0] and
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12329 * the allocated hdr_cap struct or the preallocated "id" into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12330 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12331 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12332enum act_parse_ret parse_http_req_capture(const char **args, int *orig_arg, struct proxy *px,
12333 struct act_rule *rule, char **err)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12334{
12335 struct sample_expr *expr;
12336 struct cap_hdr *hdr;
12337 int cur_arg;
Willy Tarreau3986ac12015-05-08 16:13:42 +0200[diff] [blame]12338 int len = 0;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12339
12340 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12341 if (strcmp(args[cur_arg], "if") == 0 ||
12342 strcmp(args[cur_arg], "unless") == 0)
12343 break;
12344
12345 if (cur_arg < *orig_arg + 3) {
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12346 memprintf(err, "expects <expression> [ 'len' <length> | id <idx> ]");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12347 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12348 }
12349
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12350 cur_arg = *orig_arg;
12351 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12352 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12353 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12354
12355 if (!(expr->fetch->val & SMP_VAL_FE_HRQ_HDR)) {
12356 memprintf(err,
12357 "fetch method '%s' extracts information from '%s', none of which is available here",
12358 args[cur_arg-1], sample_src_names(expr->fetch->use));
12359 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12360 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12361 }
12362
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12363 if (!args[cur_arg] || !*args[cur_arg]) {
12364 memprintf(err, "expects 'len or 'id'");
12365 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12366 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12367 }
12368
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12369 if (strcmp(args[cur_arg], "len") == 0) {
12370 cur_arg++;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12371
12372 if (!(px->cap & PR_CAP_FE)) {
12373 memprintf(err, "proxy '%s' has no frontend capability", px->id);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12374 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12375 }
12376
12377 proxy->conf.args.ctx = ARGC_CAP;
12378
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12379 if (!args[cur_arg]) {
12380 memprintf(err, "missing length value");
12381 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12382 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12383 }
12384 /* we copy the table name for now, it will be resolved later */
12385 len = atoi(args[cur_arg]);
12386 if (len <= 0) {
12387 memprintf(err, "length must be > 0");
12388 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12389 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12390 }
12391 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12392
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12393 if (!len) {
12394 memprintf(err, "a positive 'len' argument is mandatory");
12395 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12396 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12397 }
12398
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]12399 hdr = calloc(1, sizeof(*hdr));
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12400 hdr->next = px->req_cap;
12401 hdr->name = NULL; /* not a header capture */
12402 hdr->namelen = 0;
12403 hdr->len = len;
12404 hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED);
12405 hdr->index = px->nb_req_cap++;
12406
12407 px->req_cap = hdr;
12408 px->to_log |= LW_REQHDR;
12409
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12410 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12411 rule->action_ptr = http_action_req_capture;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12412 rule->arg.cap.expr = expr;
12413 rule->arg.cap.hdr = hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12414 }
12415
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12416 else if (strcmp(args[cur_arg], "id") == 0) {
12417 int id;
12418 char *error;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12419
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12420 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12421
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12422 if (!args[cur_arg]) {
12423 memprintf(err, "missing id value");
12424 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12425 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12426 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12427
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12428 id = strtol(args[cur_arg], &error, 10);
12429 if (*error != '\0') {
12430 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12431 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12432 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12433 }
12434 cur_arg++;
12435
12436 proxy->conf.args.ctx = ARGC_CAP;
12437
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12438 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12439 rule->action_ptr = http_action_req_capture_by_id;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12440 rule->arg.capid.expr = expr;
12441 rule->arg.capid.idx = id;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12442 }
12443
12444 else {
12445 memprintf(err, "expects 'len' or 'id', found '%s'", args[cur_arg]);
12446 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12447 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12448 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12449
12450 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12451 return ACT_RET_PRS_OK;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12452}
12453
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12454/* This function executes the "capture" action and store the result in a
12455 * capture slot if exists. It executes a fetch expression, turns the result
12456 * into a string and puts it in a capture slot. It always returns 1. If an
12457 * error occurs the action is cancelled, but the rule processing continues.
12458 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12459enum 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]12460 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12461{
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12462 struct sample *key;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12463 struct cap_hdr *h;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12464 char **cap = s->res_cap;
12465 struct proxy *fe = strm_fe(s);
12466 int len;
12467 int i;
12468
12469 /* Look for the original configuration. */
12470 for (h = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12471 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12472 i--, h = h->next);
12473 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12474 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12475
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12476 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]12477 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12478 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12479
12480 if (cap[h->index] == NULL)
12481 cap[h->index] = pool_alloc2(h->pool);
12482
12483 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12484 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12485
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12486 len = key->data.u.str.len;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12487 if (len > h->len)
12488 len = h->len;
12489
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12490 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12491 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12492 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12493}
12494
12495/* parse an "http-response capture" action. It takes a single argument which is
12496 * a sample fetch expression. It stores the expression into arg->act.p[0] and
12497 * the allocated hdr_cap struct od the preallocated id into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12498 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12499 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12500enum act_parse_ret parse_http_res_capture(const char **args, int *orig_arg, struct proxy *px,
12501 struct act_rule *rule, char **err)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12502{
12503 struct sample_expr *expr;
12504 int cur_arg;
12505 int id;
12506 char *error;
12507
12508 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12509 if (strcmp(args[cur_arg], "if") == 0 ||
12510 strcmp(args[cur_arg], "unless") == 0)
12511 break;
12512
12513 if (cur_arg < *orig_arg + 3) {
12514 memprintf(err, "expects <expression> [ 'len' <length> | id <idx> ]");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12515 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12516 }
12517
12518 cur_arg = *orig_arg;
12519 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12520 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12521 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12522
12523 if (!(expr->fetch->val & SMP_VAL_FE_HRS_HDR)) {
12524 memprintf(err,
12525 "fetch method '%s' extracts information from '%s', none of which is available here",
12526 args[cur_arg-1], sample_src_names(expr->fetch->use));
12527 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12528 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12529 }
12530
12531 if (!args[cur_arg] || !*args[cur_arg]) {
12532 memprintf(err, "expects 'len or 'id'");
12533 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12534 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12535 }
12536
12537 if (strcmp(args[cur_arg], "id") != 0) {
12538 memprintf(err, "expects 'id', found '%s'", args[cur_arg]);
12539 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12540 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12541 }
12542
12543 cur_arg++;
12544
12545 if (!args[cur_arg]) {
12546 memprintf(err, "missing id value");
12547 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12548 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12549 }
12550
12551 id = strtol(args[cur_arg], &error, 10);
12552 if (*error != '\0') {
12553 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12554 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12555 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12556 }
12557 cur_arg++;
12558
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12559 proxy->conf.args.ctx = ARGC_CAP;
12560
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12561 rule->action = ACT_CUSTOM;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12562 rule->action_ptr = http_action_res_capture_by_id;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12563 rule->arg.capid.expr = expr;
12564 rule->arg.capid.idx = id;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12565
12566 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12567 return ACT_RET_PRS_OK;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12568}
12569
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12570/*
12571 * Return the struct http_req_action_kw associated to a keyword.
12572 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12573struct action_kw *action_http_req_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12574{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12575 return action_lookup(&http_req_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12576}
12577
12578/*
12579 * Return the struct http_res_action_kw associated to a keyword.
12580 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12581struct action_kw *action_http_res_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12582{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12583 return action_lookup(&http_res_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12584}
12585
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12586/************************************************************************/
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12587/* All supported ACL keywords must be declared here. */
12588/************************************************************************/
12589
12590/* Note: must not be declared <const> as its list will be overwritten.
12591 * Please take care of keeping this list alphabetically sorted.
12592 */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12593static struct acl_kw_list acl_kws = {ILH, {
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12594 { "base", "base", PAT_MATCH_STR },
12595 { "base_beg", "base", PAT_MATCH_BEG },
12596 { "base_dir", "base", PAT_MATCH_DIR },
12597 { "base_dom", "base", PAT_MATCH_DOM },
12598 { "base_end", "base", PAT_MATCH_END },
12599 { "base_len", "base", PAT_MATCH_LEN },
12600 { "base_reg", "base", PAT_MATCH_REG },
12601 { "base_sub", "base", PAT_MATCH_SUB },
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]12602
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12603 { "cook", "req.cook", PAT_MATCH_STR },
12604 { "cook_beg", "req.cook", PAT_MATCH_BEG },
12605 { "cook_dir", "req.cook", PAT_MATCH_DIR },
12606 { "cook_dom", "req.cook", PAT_MATCH_DOM },
12607 { "cook_end", "req.cook", PAT_MATCH_END },
12608 { "cook_len", "req.cook", PAT_MATCH_LEN },
12609 { "cook_reg", "req.cook", PAT_MATCH_REG },
12610 { "cook_sub", "req.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12611
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12612 { "hdr", "req.hdr", PAT_MATCH_STR },
12613 { "hdr_beg", "req.hdr", PAT_MATCH_BEG },
12614 { "hdr_dir", "req.hdr", PAT_MATCH_DIR },
12615 { "hdr_dom", "req.hdr", PAT_MATCH_DOM },
12616 { "hdr_end", "req.hdr", PAT_MATCH_END },
12617 { "hdr_len", "req.hdr", PAT_MATCH_LEN },
12618 { "hdr_reg", "req.hdr", PAT_MATCH_REG },
12619 { "hdr_sub", "req.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12620
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12621 /* these two declarations uses strings with list storage (in place
12622 * of tree storage). The basic match is PAT_MATCH_STR, but the indexation
12623 * and delete functions are relative to the list management. The parse
12624 * and match method are related to the corresponding fetch methods. This
12625 * is very particular ACL declaration mode.
12626 */
12627 { "http_auth_group", NULL, PAT_MATCH_STR, NULL, pat_idx_list_str, pat_del_list_ptr, NULL, pat_match_auth },
12628 { "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]12629
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12630 { "path", "path", PAT_MATCH_STR },
12631 { "path_beg", "path", PAT_MATCH_BEG },
12632 { "path_dir", "path", PAT_MATCH_DIR },
12633 { "path_dom", "path", PAT_MATCH_DOM },
12634 { "path_end", "path", PAT_MATCH_END },
12635 { "path_len", "path", PAT_MATCH_LEN },
12636 { "path_reg", "path", PAT_MATCH_REG },
12637 { "path_sub", "path", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12638
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12639 { "req_ver", "req.ver", PAT_MATCH_STR },
12640 { "resp_ver", "res.ver", PAT_MATCH_STR },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12641
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12642 { "scook", "res.cook", PAT_MATCH_STR },
12643 { "scook_beg", "res.cook", PAT_MATCH_BEG },
12644 { "scook_dir", "res.cook", PAT_MATCH_DIR },
12645 { "scook_dom", "res.cook", PAT_MATCH_DOM },
12646 { "scook_end", "res.cook", PAT_MATCH_END },
12647 { "scook_len", "res.cook", PAT_MATCH_LEN },
12648 { "scook_reg", "res.cook", PAT_MATCH_REG },
12649 { "scook_sub", "res.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12650
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12651 { "shdr", "res.hdr", PAT_MATCH_STR },
12652 { "shdr_beg", "res.hdr", PAT_MATCH_BEG },
12653 { "shdr_dir", "res.hdr", PAT_MATCH_DIR },
12654 { "shdr_dom", "res.hdr", PAT_MATCH_DOM },
12655 { "shdr_end", "res.hdr", PAT_MATCH_END },
12656 { "shdr_len", "res.hdr", PAT_MATCH_LEN },
12657 { "shdr_reg", "res.hdr", PAT_MATCH_REG },
12658 { "shdr_sub", "res.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12659
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12660 { "url", "url", PAT_MATCH_STR },
12661 { "url_beg", "url", PAT_MATCH_BEG },
12662 { "url_dir", "url", PAT_MATCH_DIR },
12663 { "url_dom", "url", PAT_MATCH_DOM },
12664 { "url_end", "url", PAT_MATCH_END },
12665 { "url_len", "url", PAT_MATCH_LEN },
12666 { "url_reg", "url", PAT_MATCH_REG },
12667 { "url_sub", "url", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12668
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12669 { "urlp", "urlp", PAT_MATCH_STR },
12670 { "urlp_beg", "urlp", PAT_MATCH_BEG },
12671 { "urlp_dir", "urlp", PAT_MATCH_DIR },
12672 { "urlp_dom", "urlp", PAT_MATCH_DOM },
12673 { "urlp_end", "urlp", PAT_MATCH_END },
12674 { "urlp_len", "urlp", PAT_MATCH_LEN },
12675 { "urlp_reg", "urlp", PAT_MATCH_REG },
12676 { "urlp_sub", "urlp", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12677
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100[diff] [blame]12678 { /* END */ },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12679}};
12680
12681/************************************************************************/
12682/* All supported pattern keywords must be declared here. */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12683/************************************************************************/
12684/* Note: must not be declared <const> as its list will be overwritten */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12685static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12686 { "base", smp_fetch_base, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12687 { "base32", smp_fetch_base32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12688 { "base32+src", smp_fetch_base32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12689
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]12690 /* capture are allocated and are permanent in the stream */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12691 { "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]12692
12693 /* retrieve these captures from the HTTP logs */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12694 { "capture.req.method", smp_fetch_capture_req_method, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12695 { "capture.req.uri", smp_fetch_capture_req_uri, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12696 { "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]12697
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12698 { "capture.res.hdr", smp_fetch_capture_header_res, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRSHP },
12699 { "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]12700
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12701 /* cookie is valid in both directions (eg: for "stick ...") but cook*
12702 * are only here to match the ACL's name, are request-only and are used
12703 * for ACL compatibility only.
12704 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12705 { "cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12706 { "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]12707 { "cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12708 { "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]12709
12710 /* hdr is valid in both directions (eg: for "stick ...") but hdr_* are
12711 * only here to match the ACL's name, are request-only and are used for
12712 * ACL compatibility only.
12713 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12714 { "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]12715 { "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]12716 { "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]12717 { "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]12718
Willy Tarreau0a0daec2013-04-02 22:44:58 +0200[diff] [blame]12719 { "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]12720 { "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]12721 { "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]12722 { "method", smp_fetch_meth, 0, NULL, SMP_T_METH, SMP_USE_HRQHP },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12723 { "path", smp_fetch_path, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]12724 { "query", smp_fetch_query, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12725
12726 /* HTTP protocol on the request path */
12727 { "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]12728 { "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]12729
12730 /* HTTP version on the request path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12731 { "req.ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
12732 { "req_ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12733
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]12734 { "req.body", smp_fetch_body, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12735 { "req.body_len", smp_fetch_body_len, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
12736 { "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]12737 { "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]12738
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12739 /* HTTP version on the response path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12740 { "res.ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
12741 { "resp_ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12742
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12743 /* 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]12744 { "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]12745 { "req.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12746 { "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]12747
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12748 { "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]12749 { "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]12750 { "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]12751 { "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]12752 { "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]12753 { "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]12754 { "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]12755
12756 /* 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]12757 { "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]12758 { "res.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12759 { "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]12760
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12761 { "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]12762 { "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]12763 { "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]12764 { "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]12765 { "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]12766 { "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]12767 { "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]12768
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12769 /* scook is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12770 { "scook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12771 { "scook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12772 { "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]12773 { "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]12774
12775 /* shdr is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12776 { "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]12777 { "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]12778 { "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]12779 { "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]12780
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12781 { "status", smp_fetch_stcode, 0, NULL, SMP_T_SINT, SMP_USE_HRSHP },
Thierry Fournier0e00dca2016-04-07 15:47:40 +0200[diff] [blame]12782 { "unique-id", smp_fetch_uniqueid, 0, NULL, SMP_T_STR, SMP_SRC_L4SRV },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12783 { "url", smp_fetch_url, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12784 { "url32", smp_fetch_url32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]12785 { "url32+src", smp_fetch_url32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12786 { "url_ip", smp_fetch_url_ip, 0, NULL, SMP_T_IPV4, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12787 { "url_port", smp_fetch_url_port, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]12788 { "url_param", smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12789 { "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]12790 { "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]12791 { /* END */ },
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12792}};
12793
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12794
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12795/************************************************************************/
12796/* All supported converter keywords must be declared here. */
12797/************************************************************************/
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12798/* Note: must not be declared <const> as its list will be overwritten */
12799static struct sample_conv_kw_list sample_conv_kws = {ILH, {
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12800 { "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]12801 { "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]12802 { "capture-req", smp_conv_req_capture, ARG1(1,SINT), NULL, SMP_T_STR, SMP_T_STR},
12803 { "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]12804 { "url_dec", sample_conv_url_dec, 0, NULL, SMP_T_STR, SMP_T_STR},
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12805 { NULL, NULL, 0, 0, 0 },
12806}};
12807
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12808
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12809/************************************************************************/
12810/* All supported http-request action keywords must be declared here. */
12811/************************************************************************/
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12812struct action_kw_list http_req_actions = {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12813 .kw = {
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12814 { "capture", parse_http_req_capture },
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12815 { "set-method", parse_set_req_line },
12816 { "set-path", parse_set_req_line },
12817 { "set-query", parse_set_req_line },
12818 { "set-uri", parse_set_req_line },
Willy Tarreaucb703b02015-04-03 09:52:01 +0200[diff] [blame]12819 { NULL, NULL }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12820 }
12821};
12822
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12823struct action_kw_list http_res_actions = {
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12824 .kw = {
12825 { "capture", parse_http_res_capture },
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12826 { "set-status", parse_http_set_status },
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12827 { NULL, NULL }
12828 }
12829};
12830
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12831__attribute__((constructor))
12832static void __http_protocol_init(void)
12833{
12834 acl_register_keywords(&acl_kws);
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]12835 sample_register_fetches(&sample_fetch_keywords);
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12836 sample_register_convs(&sample_conv_kws);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12837 http_req_keywords_register(&http_req_actions);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12838 http_res_keywords_register(&http_res_actions);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12839}
12840
12841
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]12842/*
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]12843 * Local variables:
12844 * c-indent-level: 8
12845 * c-basic-offset: 8
12846 * End:
12847 */