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git01.mediatek.com / haproxy / cc7317d11e68e4335d831dddc2c6cda0ac425d5d / . / src / proto_http.c
blob: 82d4b8700611459d028e2f2a50774adc7ade9d51 [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 */
Thierry FOURNIER7fe75e02015-03-16 12:03:44 +0100[diff] [blame]3192void inet_set_tos(int fd, struct sockaddr_storage from, int tos)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]3193{
3194#ifdef IP_TOS
3195 if (from.ss_family == AF_INET)
3196 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
3197#endif
3198#ifdef IPV6_TCLASS
3199 if (from.ss_family == AF_INET6) {
3200 if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)&from)->sin6_addr))
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
3279 * on txn->flags if it encounters a tarpit rule.
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3280 */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3281enum rule_result
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]3282http_req_get_intercept_rule(struct proxy *px, struct list *rules, struct stream *s)
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3283{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3284 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]3285 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3286 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]3287 struct act_rule *rule;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]3288 struct hdr_ctx ctx;
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]3289 const char *auth_realm;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3290 int act_flags = 0;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3291
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3292 /* If "the current_rule_list" match the executed rule list, we are in
3293 * resume condition. If a resume is needed it is always in the action
3294 * and never in the ACL or converters. In this case, we initialise the
3295 * current rule, and go to the action execution point.
3296 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3297 if (s->current_rule) {
3298 rule = s->current_rule;
3299 s->current_rule = NULL;
3300 if (s->current_rule_list == rules)
3301 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3302 }
3303 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3304
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]3305 list_for_each_entry(rule, rules, list) {
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3306
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3307 /* check optional condition */
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]3308 if (rule->cond) {
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3309 int ret;
3310
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3311 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]3312 ret = acl_pass(ret);
3313
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]3314 if (rule->cond->pol == ACL_COND_UNLESS)
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3315 ret = !ret;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3316
3317 if (!ret) /* condition not matched */
3318 continue;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3319 }
3320
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3321 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3322resume_execution:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3323 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3324 case ACT_ACTION_ALLOW:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3325 return HTTP_RULE_RES_STOP;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3326
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3327 case ACT_ACTION_DENY:
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]3328 txn->rule_deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3329 return HTTP_RULE_RES_DENY;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3330
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3331 case ACT_HTTP_REQ_TARPIT:
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]3332 txn->flags |= TX_CLTARPIT;
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]3333 txn->rule_deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3334 return HTTP_RULE_RES_DENY;
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]3335
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3336 case ACT_HTTP_REQ_AUTH:
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]3337 /* Auth might be performed on regular http-req rules as well as on stats */
3338 auth_realm = rule->arg.auth.realm;
3339 if (!auth_realm) {
3340 if (px->uri_auth && rules == &px->uri_auth->http_req_rules)
3341 auth_realm = STATS_DEFAULT_REALM;
3342 else
3343 auth_realm = px->id;
3344 }
3345 /* send 401/407 depending on whether we use a proxy or not. We still
3346 * count one error, because normal browsing won't significantly
3347 * increase the counter but brute force attempts will.
3348 */
3349 chunk_printf(&trash, (txn->flags & TX_USE_PX_CONN) ? HTTP_407_fmt : HTTP_401_fmt, auth_realm);
3350 txn->status = (txn->flags & TX_USE_PX_CONN) ? 407 : 401;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]3351 http_reply_and_close(s, txn->status, &trash);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3352 stream_inc_http_err_ctr(s);
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3353 return HTTP_RULE_RES_ABRT;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3354
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3355 case ACT_HTTP_REDIR:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3356 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
3357 return HTTP_RULE_RES_BADREQ;
3358 return HTTP_RULE_RES_DONE;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]3359
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3360 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]3361 s->task->nice = rule->arg.nice;
3362 break;
3363
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3364 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3365 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3366 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]3367 break;
3368
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3369 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]3370#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3371 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3372 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]3373#endif
3374 break;
3375
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3376 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]3377 s->logs.level = rule->arg.loglevel;
3378 break;
3379
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3380 case ACT_HTTP_REPLACE_HDR:
3381 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3382 if (http_transform_header(s, &txn->req, rule->arg.hdr_add.name,
3383 rule->arg.hdr_add.name_len,
3384 &rule->arg.hdr_add.fmt,
3385 &rule->arg.hdr_add.re, rule->action))
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3386 return HTTP_RULE_RES_BADREQ;
3387 break;
3388
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3389 case ACT_HTTP_DEL_HDR:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3390 ctx.idx = 0;
3391 /* remove all occurrences of the header */
3392 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
3393 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
3394 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]3395 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]3396 break;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3397
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3398 case ACT_HTTP_SET_HDR:
3399 case ACT_HTTP_ADD_HDR:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3400 chunk_printf(&trash, "%s: ", rule->arg.hdr_add.name);
3401 memcpy(trash.str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
3402 trash.len = rule->arg.hdr_add.name_len;
3403 trash.str[trash.len++] = ':';
3404 trash.str[trash.len++] = ' ';
3405 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]3406
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3407 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]3408 /* remove all occurrences of the header */
3409 ctx.idx = 0;
3410 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
3411 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
3412 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
3413 }
3414 }
3415
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3416 http_header_add_tail2(&txn->req, &txn->hdr_idx, trash.str, trash.len);
3417 break;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3418
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3419 case ACT_HTTP_DEL_ACL:
3420 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3421 struct pat_ref *ref;
3422 char *key;
3423 int len;
3424
3425 /* collect reference */
3426 ref = pat_ref_lookup(rule->arg.map.ref);
3427 if (!ref)
3428 continue;
3429
3430 /* collect key */
3431 len = build_logline(s, trash.str, trash.size, &rule->arg.map.key);
3432 key = trash.str;
3433 key[len] = '\0';
3434
3435 /* perform update */
3436 /* returned code: 1=ok, 0=ko */
3437 pat_ref_delete(ref, key);
3438
3439 break;
3440 }
3441
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3442 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3443 struct pat_ref *ref;
3444 char *key;
3445 struct chunk *trash_key;
3446 int len;
3447
3448 trash_key = get_trash_chunk();
3449
3450 /* collect reference */
3451 ref = pat_ref_lookup(rule->arg.map.ref);
3452 if (!ref)
3453 continue;
3454
3455 /* collect key */
3456 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
3457 key = trash_key->str;
3458 key[len] = '\0';
3459
3460 /* perform update */
3461 /* add entry only if it does not already exist */
3462 if (pat_ref_find_elt(ref, key) == NULL)
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]3463 pat_ref_add(ref, key, NULL, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3464
3465 break;
3466 }
3467
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3468 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3469 struct pat_ref *ref;
3470 char *key, *value;
3471 struct chunk *trash_key, *trash_value;
3472 int len;
3473
3474 trash_key = get_trash_chunk();
3475 trash_value = get_trash_chunk();
3476
3477 /* collect reference */
3478 ref = pat_ref_lookup(rule->arg.map.ref);
3479 if (!ref)
3480 continue;
3481
3482 /* collect key */
3483 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
3484 key = trash_key->str;
3485 key[len] = '\0';
3486
3487 /* collect value */
3488 len = build_logline(s, trash_value->str, trash_value->size, &rule->arg.map.value);
3489 value = trash_value->str;
3490 value[len] = '\0';
3491
3492 /* perform update */
3493 if (pat_ref_find_elt(ref, key) != NULL)
3494 /* update entry if it exists */
3495 pat_ref_set(ref, key, value, NULL);
3496 else
3497 /* insert a new entry */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]3498 pat_ref_add(ref, key, value, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3499
3500 break;
3501 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3502
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3503 case ACT_CUSTOM:
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3504 if ((px->options & PR_O_ABRT_CLOSE) && (s->req.flags & (CF_SHUTR|CF_READ_NULL|CF_READ_ERROR)))
3505 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]3506
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3507 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3508 case ACT_RET_ERR:
3509 case ACT_RET_CONT:
3510 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3511 case ACT_RET_STOP:
3512 return HTTP_RULE_RES_DONE;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3513 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3514 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3515 return HTTP_RULE_RES_YIELD;
3516 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3517 break;
3518
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3519 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]3520 /* Note: only the first valid tracking parameter of each
3521 * applies.
3522 */
3523
3524 if (stkctr_entry(&s->stkctr[http_req_trk_idx(rule->action)]) == NULL) {
3525 struct stktable *t;
3526 struct stksess *ts;
3527 struct stktable_key *key;
3528 void *ptr;
3529
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]3530 t = rule->arg.trk_ctr.table.t;
3531 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]3532
3533 if (key && (ts = stktable_get_entry(t, key))) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3534 stream_track_stkctr(&s->stkctr[http_req_trk_idx(rule->action)], t, ts);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]3535
3536 /* let's count a new HTTP request as it's the first time we do it */
3537 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
3538 if (ptr)
3539 stktable_data_cast(ptr, http_req_cnt)++;
3540
3541 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
3542 if (ptr)
3543 update_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
3544 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
3545
3546 stkctr_set_flags(&s->stkctr[http_req_trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3547 if (sess->fe != s->be)
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]3548 stkctr_set_flags(&s->stkctr[http_req_trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
3549 }
3550 }
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]3551 break;
3552
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3553 case ACT_HTTP_REQ_SET_SRC:
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]3554 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn)) {
3555 struct sample *smp;
3556
Thierry FOURNIERa002dc92015-07-31 08:50:51 +0200[diff] [blame]3557 smp = sample_fetch_as_type(px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL, rule->arg.expr, SMP_T_ADDR);
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]3558
3559 if (smp) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]3560 if (smp->data.type == SMP_T_IPV4) {
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]3561 ((struct sockaddr_in *)&cli_conn->addr.from)->sin_family = AF_INET;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]3562 ((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr.s_addr = smp->data.u.ipv4.s_addr;
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]3563 ((struct sockaddr_in *)&cli_conn->addr.from)->sin_port = 0;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]3564 } else if (smp->data.type == SMP_T_IPV6) {
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]3565 ((struct sockaddr_in6 *)&cli_conn->addr.from)->sin6_family = AF_INET6;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]3566 memcpy(&((struct sockaddr_in6 *)&cli_conn->addr.from)->sin6_addr, &smp->data.u.ipv6, sizeof(struct in6_addr));
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]3567 ((struct sockaddr_in6 *)&cli_conn->addr.from)->sin6_port = 0;
3568 }
3569 }
3570 }
3571 break;
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]3572
3573 /* other flags exists, but normaly, they never be matched. */
3574 default:
3575 break;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3576 }
3577 }
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3578
3579 /* we reached the end of the rules, nothing to report */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3580 return HTTP_RULE_RES_CONT;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3581}
3582
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3583
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3584/* Executes the http-response rules <rules> for stream <s> and proxy <px>. It
3585 * returns one of 5 possible statuses: HTTP_RULE_RES_CONT, HTTP_RULE_RES_STOP,
3586 * HTTP_RULE_RES_DONE, HTTP_RULE_RES_YIELD, or HTTP_RULE_RES_BADREQ. If *CONT
3587 * is returned, the process can continue the evaluation of next rule list. If
3588 * *STOP or *DONE is returned, the process must stop the evaluation. If *BADREQ
3589 * is returned, it means the operation could not be processed and a server error
3590 * must be returned. It may set the TX_SVDENY on txn->flags if it encounters a
3591 * deny rule. If *YIELD is returned, the caller must call again the function
3592 * with the same context.
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3593 */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3594static enum rule_result
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]3595http_res_get_intercept_rule(struct proxy *px, struct list *rules, struct stream *s)
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3596{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3597 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]3598 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3599 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]3600 struct act_rule *rule;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3601 struct hdr_ctx ctx;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3602 int act_flags = 0;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3603
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3604 /* If "the current_rule_list" match the executed rule list, we are in
3605 * resume condition. If a resume is needed it is always in the action
3606 * and never in the ACL or converters. In this case, we initialise the
3607 * current rule, and go to the action execution point.
3608 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3609 if (s->current_rule) {
3610 rule = s->current_rule;
3611 s->current_rule = NULL;
3612 if (s->current_rule_list == rules)
3613 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3614 }
3615 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3616
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3617 list_for_each_entry(rule, rules, list) {
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3618
3619 /* check optional condition */
3620 if (rule->cond) {
3621 int ret;
3622
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3623 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]3624 ret = acl_pass(ret);
3625
3626 if (rule->cond->pol == ACL_COND_UNLESS)
3627 ret = !ret;
3628
3629 if (!ret) /* condition not matched */
3630 continue;
3631 }
3632
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3633 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3634resume_execution:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3635 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3636 case ACT_ACTION_ALLOW:
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3637 return HTTP_RULE_RES_STOP; /* "allow" rules are OK */
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3638
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3639 case ACT_ACTION_DENY:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3640 txn->flags |= TX_SVDENY;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3641 return HTTP_RULE_RES_STOP;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3642
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3643 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]3644 s->task->nice = rule->arg.nice;
3645 break;
3646
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3647 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3648 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3649 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]3650 break;
3651
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3652 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]3653#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3654 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3655 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]3656#endif
3657 break;
3658
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3659 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]3660 s->logs.level = rule->arg.loglevel;
3661 break;
3662
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3663 case ACT_HTTP_REPLACE_HDR:
3664 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3665 if (http_transform_header(s, &txn->rsp, rule->arg.hdr_add.name,
3666 rule->arg.hdr_add.name_len,
3667 &rule->arg.hdr_add.fmt,
3668 &rule->arg.hdr_add.re, rule->action))
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3669 return HTTP_RULE_RES_STOP; /* note: we should report an error here */
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3670 break;
3671
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3672 case ACT_HTTP_DEL_HDR:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3673 ctx.idx = 0;
3674 /* remove all occurrences of the header */
3675 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
3676 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
3677 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
3678 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]3679 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3680
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3681 case ACT_HTTP_SET_HDR:
3682 case ACT_HTTP_ADD_HDR:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3683 chunk_printf(&trash, "%s: ", rule->arg.hdr_add.name);
3684 memcpy(trash.str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
3685 trash.len = rule->arg.hdr_add.name_len;
3686 trash.str[trash.len++] = ':';
3687 trash.str[trash.len++] = ' ';
3688 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]3689
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3690 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]3691 /* remove all occurrences of the header */
3692 ctx.idx = 0;
3693 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
3694 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
3695 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
3696 }
3697 }
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3698 http_header_add_tail2(&txn->rsp, &txn->hdr_idx, trash.str, trash.len);
3699 break;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3700
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3701 case ACT_HTTP_DEL_ACL:
3702 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3703 struct pat_ref *ref;
3704 char *key;
3705 int len;
3706
3707 /* collect reference */
3708 ref = pat_ref_lookup(rule->arg.map.ref);
3709 if (!ref)
3710 continue;
3711
3712 /* collect key */
3713 len = build_logline(s, trash.str, trash.size, &rule->arg.map.key);
3714 key = trash.str;
3715 key[len] = '\0';
3716
3717 /* perform update */
3718 /* returned code: 1=ok, 0=ko */
3719 pat_ref_delete(ref, key);
3720
3721 break;
3722 }
3723
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3724 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3725 struct pat_ref *ref;
3726 char *key;
3727 struct chunk *trash_key;
3728 int len;
3729
3730 trash_key = get_trash_chunk();
3731
3732 /* collect reference */
3733 ref = pat_ref_lookup(rule->arg.map.ref);
3734 if (!ref)
3735 continue;
3736
3737 /* collect key */
3738 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
3739 key = trash_key->str;
3740 key[len] = '\0';
3741
3742 /* perform update */
3743 /* check if the entry already exists */
3744 if (pat_ref_find_elt(ref, key) == NULL)
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]3745 pat_ref_add(ref, key, NULL, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3746
3747 break;
3748 }
3749
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3750 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3751 struct pat_ref *ref;
3752 char *key, *value;
3753 struct chunk *trash_key, *trash_value;
3754 int len;
3755
3756 trash_key = get_trash_chunk();
3757 trash_value = get_trash_chunk();
3758
3759 /* collect reference */
3760 ref = pat_ref_lookup(rule->arg.map.ref);
3761 if (!ref)
3762 continue;
3763
3764 /* collect key */
3765 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
3766 key = trash_key->str;
3767 key[len] = '\0';
3768
3769 /* collect value */
3770 len = build_logline(s, trash_value->str, trash_value->size, &rule->arg.map.value);
3771 value = trash_value->str;
3772 value[len] = '\0';
3773
3774 /* perform update */
3775 if (pat_ref_find_elt(ref, key) != NULL)
3776 /* update entry if it exists */
3777 pat_ref_set(ref, key, value, NULL);
3778 else
3779 /* insert a new entry */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]3780 pat_ref_add(ref, key, value, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3781
3782 break;
3783 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3784
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3785 case ACT_HTTP_REDIR:
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3786 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
3787 return HTTP_RULE_RES_BADREQ;
3788 return HTTP_RULE_RES_DONE;
3789
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3790 case ACT_CUSTOM:
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3791 if ((px->options & PR_O_ABRT_CLOSE) && (s->req.flags & (CF_SHUTR|CF_READ_NULL|CF_READ_ERROR)))
3792 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]3793
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3794 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3795 case ACT_RET_ERR:
3796 case ACT_RET_CONT:
3797 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3798 case ACT_RET_STOP:
3799 return HTTP_RULE_RES_STOP;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3800 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3801 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3802 return HTTP_RULE_RES_YIELD;
3803 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3804 break;
3805
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]3806 /* other flags exists, but normaly, they never be matched. */
3807 default:
3808 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3809 }
3810 }
3811
3812 /* we reached the end of the rules, nothing to report */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3813 return HTTP_RULE_RES_CONT;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3814}
3815
3816
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3817/* Perform an HTTP redirect based on the information in <rule>. The function
3818 * returns non-zero on success, or zero in case of a, irrecoverable error such
3819 * as too large a request to build a valid response.
3820 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3821static 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]3822{
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3823 struct http_msg *req = &txn->req;
3824 struct http_msg *res = &txn->rsp;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3825 const char *msg_fmt;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3826 const char *location;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3827
3828 /* build redirect message */
3829 switch(rule->code) {
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]3830 case 308:
3831 msg_fmt = HTTP_308;
3832 break;
3833 case 307:
3834 msg_fmt = HTTP_307;
3835 break;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3836 case 303:
3837 msg_fmt = HTTP_303;
3838 break;
3839 case 301:
3840 msg_fmt = HTTP_301;
3841 break;
3842 case 302:
3843 default:
3844 msg_fmt = HTTP_302;
3845 break;
3846 }
3847
3848 if (unlikely(!chunk_strcpy(&trash, msg_fmt)))
3849 return 0;
3850
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3851 location = trash.str + trash.len;
3852
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3853 switch(rule->type) {
3854 case REDIRECT_TYPE_SCHEME: {
3855 const char *path;
3856 const char *host;
3857 struct hdr_ctx ctx;
3858 int pathlen;
3859 int hostlen;
3860
3861 host = "";
3862 hostlen = 0;
3863 ctx.idx = 0;
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3864 if (http_find_header2("Host", 4, req->chn->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3865 host = ctx.line + ctx.val;
3866 hostlen = ctx.vlen;
3867 }
3868
3869 path = http_get_path(txn);
3870 /* build message using path */
3871 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3872 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]3873 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3874 int qs = 0;
3875 while (qs < pathlen) {
3876 if (path[qs] == '?') {
3877 pathlen = qs;
3878 break;
3879 }
3880 qs++;
3881 }
3882 }
3883 } else {
3884 path = "/";
3885 pathlen = 1;
3886 }
3887
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3888 if (rule->rdr_str) { /* this is an old "redirect" rule */
3889 /* check if we can add scheme + "://" + host + path */
3890 if (trash.len + rule->rdr_len + 3 + hostlen + pathlen > trash.size - 4)
3891 return 0;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3892
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3893 /* add scheme */
3894 memcpy(trash.str + trash.len, rule->rdr_str, rule->rdr_len);
3895 trash.len += rule->rdr_len;
3896 }
3897 else {
3898 /* add scheme with executing log format */
3899 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]3900
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3901 /* check if we can add scheme + "://" + host + path */
3902 if (trash.len + 3 + hostlen + pathlen > trash.size - 4)
3903 return 0;
3904 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3905 /* add "://" */
3906 memcpy(trash.str + trash.len, "://", 3);
3907 trash.len += 3;
3908
3909 /* add host */
3910 memcpy(trash.str + trash.len, host, hostlen);
3911 trash.len += hostlen;
3912
3913 /* add path */
3914 memcpy(trash.str + trash.len, path, pathlen);
3915 trash.len += pathlen;
3916
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3917 /* append a slash at the end of the location if needed and missing */
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3918 if (trash.len && trash.str[trash.len - 1] != '/' &&
3919 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
3920 if (trash.len > trash.size - 5)
3921 return 0;
3922 trash.str[trash.len] = '/';
3923 trash.len++;
3924 }
3925
3926 break;
3927 }
3928 case REDIRECT_TYPE_PREFIX: {
3929 const char *path;
3930 int pathlen;
3931
3932 path = http_get_path(txn);
3933 /* build message using path */
3934 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3935 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]3936 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3937 int qs = 0;
3938 while (qs < pathlen) {
3939 if (path[qs] == '?') {
3940 pathlen = qs;
3941 break;
3942 }
3943 qs++;
3944 }
3945 }
3946 } else {
3947 path = "/";
3948 pathlen = 1;
3949 }
3950
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3951 if (rule->rdr_str) { /* this is an old "redirect" rule */
3952 if (trash.len + rule->rdr_len + pathlen > trash.size - 4)
3953 return 0;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3954
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3955 /* add prefix. Note that if prefix == "/", we don't want to
3956 * add anything, otherwise it makes it hard for the user to
3957 * configure a self-redirection.
3958 */
3959 if (rule->rdr_len != 1 || *rule->rdr_str != '/') {
3960 memcpy(trash.str + trash.len, rule->rdr_str, rule->rdr_len);
3961 trash.len += rule->rdr_len;
3962 }
3963 }
3964 else {
3965 /* add prefix with executing log format */
3966 trash.len += build_logline(s, trash.str + trash.len, trash.size - trash.len, &rule->rdr_fmt);
3967
3968 /* Check length */
3969 if (trash.len + pathlen > trash.size - 4)
3970 return 0;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3971 }
3972
3973 /* add path */
3974 memcpy(trash.str + trash.len, path, pathlen);
3975 trash.len += pathlen;
3976
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3977 /* append a slash at the end of the location if needed and missing */
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3978 if (trash.len && trash.str[trash.len - 1] != '/' &&
3979 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
3980 if (trash.len > trash.size - 5)
3981 return 0;
3982 trash.str[trash.len] = '/';
3983 trash.len++;
3984 }
3985
3986 break;
3987 }
3988 case REDIRECT_TYPE_LOCATION:
3989 default:
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3990 if (rule->rdr_str) { /* this is an old "redirect" rule */
3991 if (trash.len + rule->rdr_len > trash.size - 4)
3992 return 0;
3993
3994 /* add location */
3995 memcpy(trash.str + trash.len, rule->rdr_str, rule->rdr_len);
3996 trash.len += rule->rdr_len;
3997 }
3998 else {
3999 /* add location with executing log format */
4000 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]4001
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]4002 /* Check left length */
4003 if (trash.len > trash.size - 4)
4004 return 0;
4005 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4006 break;
4007 }
4008
4009 if (rule->cookie_len) {
4010 memcpy(trash.str + trash.len, "\r\nSet-Cookie: ", 14);
4011 trash.len += 14;
4012 memcpy(trash.str + trash.len, rule->cookie_str, rule->cookie_len);
4013 trash.len += rule->cookie_len;
4014 memcpy(trash.str + trash.len, "\r\n", 2);
4015 trash.len += 2;
4016 }
4017
4018 /* add end of headers and the keep-alive/close status.
4019 * We may choose to set keep-alive if the Location begins
4020 * with a slash, because the client will come back to the
4021 * same server.
4022 */
4023 txn->status = rule->code;
4024 /* let's log the request time */
4025 s->logs.tv_request = now;
4026
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]4027 if (*location == '/' &&
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4028 (req->flags & HTTP_MSGF_XFER_LEN) &&
Willy Tarreau2de8a502015-05-28 17:23:54 +0200[diff] [blame]4029 ((!(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]4030 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
4031 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
4032 /* keep-alive possible */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4033 if (!(req->flags & HTTP_MSGF_VER_11)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4034 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
4035 memcpy(trash.str + trash.len, "\r\nProxy-Connection: keep-alive", 30);
4036 trash.len += 30;
4037 } else {
4038 memcpy(trash.str + trash.len, "\r\nConnection: keep-alive", 24);
4039 trash.len += 24;
4040 }
4041 }
4042 memcpy(trash.str + trash.len, "\r\n\r\n", 4);
4043 trash.len += 4;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]4044 FLT_STRM_CB(s, flt_http_reply(s, txn->status, &trash));
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4045 bo_inject(res->chn, trash.str, trash.len);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4046 /* "eat" the request */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4047 bi_fast_delete(req->chn->buf, req->sov);
4048 req->next -= req->sov;
4049 req->sov = 0;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4050 s->req.analysers = AN_REQ_HTTP_XFER_BODY | (s->req.analysers & AN_FLT_END);
4051 s->res.analysers = AN_RES_HTTP_XFER_BODY | (s->req.analysers & AN_FLT_END);
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4052 req->msg_state = HTTP_MSG_CLOSED;
4053 res->msg_state = HTTP_MSG_DONE;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]4054 /* Trim any possible response */
4055 res->chn->buf->i = 0;
4056 res->next = res->sov = 0;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4057 } else {
4058 /* keep-alive not possible */
4059 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
4060 memcpy(trash.str + trash.len, "\r\nProxy-Connection: close\r\n\r\n", 29);
4061 trash.len += 29;
4062 } else {
4063 memcpy(trash.str + trash.len, "\r\nConnection: close\r\n\r\n", 23);
4064 trash.len += 23;
4065 }
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4066 http_reply_and_close(s, txn->status, &trash);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4067 req->chn->analysers &= AN_FLT_END;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4068 }
4069
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4070 if (!(s->flags & SF_ERR_MASK))
4071 s->flags |= SF_ERR_LOCAL;
4072 if (!(s->flags & SF_FINST_MASK))
4073 s->flags |= SF_FINST_R;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4074
4075 return 1;
4076}
4077
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4078/* This stream analyser runs all HTTP request processing which is common to
4079 * frontends and backends, which means blocking ACLs, filters, connection-close,
4080 * reqadd, stats and redirects. This is performed for the designated proxy.
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]4081 * 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]4082 * either needs more data or wants to immediately abort the request (eg: deny,
4083 * error, ...).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]4084 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4085int 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]4086{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4087 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4088 struct http_txn *txn = s->txn;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]4089 struct http_msg *msg = &txn->req;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4090 struct redirect_rule *rule;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100[diff] [blame]4091 struct cond_wordlist *wl;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4092 enum rule_result verdict;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]4093
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]4094 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]4095 /* we need more data */
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]4096 goto return_prx_yield;
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]4097 }
4098
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4099 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]4100 now_ms, __FUNCTION__,
4101 s,
4102 req,
4103 req->rex, req->wex,
4104 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4105 req->buf->i,
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]4106 req->analysers);
4107
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]4108 /* just in case we have some per-backend tracking */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4109 stream_inc_be_http_req_ctr(s);
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]4110
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]4111 /* evaluate http-request rules */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4112 if (!LIST_ISEMPTY(&px->http_req_rules)) {
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]4113 verdict = http_req_get_intercept_rule(px, &px->http_req_rules, s);
Willy Tarreau51425942010-02-01 10:40:19 +0100[diff] [blame]4114
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4115 switch (verdict) {
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]4116 case HTTP_RULE_RES_YIELD: /* some data miss, call the function later. */
4117 goto return_prx_yield;
4118
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4119 case HTTP_RULE_RES_CONT:
4120 case HTTP_RULE_RES_STOP: /* nothing to do */
4121 break;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4122
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4123 case HTTP_RULE_RES_DENY: /* deny or tarpit */
4124 if (txn->flags & TX_CLTARPIT)
4125 goto tarpit;
4126 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4127
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4128 case HTTP_RULE_RES_ABRT: /* abort request, response already sent. Eg: auth */
4129 goto return_prx_cond;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4130
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4131 case HTTP_RULE_RES_DONE: /* OK, but terminate request processing (eg: redirect) */
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4132 goto done;
4133
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4134 case HTTP_RULE_RES_BADREQ: /* failed with a bad request */
4135 goto return_bad_req;
4136 }
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4137 }
4138
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4139 /* OK at this stage, we know that the request was accepted according to
4140 * the http-request rules, we can check for the stats. Note that the
4141 * URI is detected *before* the req* rules in order not to be affected
4142 * by a possible reqrep, while they are processed *after* so that a
4143 * reqdeny can still block them. This clearly needs to change in 1.6!
4144 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4145 if (stats_check_uri(&s->si[1], txn, px)) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4146 s->target = &http_stats_applet.obj_type;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4147 if (unlikely(!stream_int_register_handler(&s->si[1], objt_applet(s->target)))) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4148 txn->status = 500;
4149 s->logs.tv_request = now;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4150 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_500));
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]4151
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4152 if (!(s->flags & SF_ERR_MASK))
4153 s->flags |= SF_ERR_RESOURCE;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4154 goto return_prx_cond;
4155 }
4156
4157 /* parse the whole stats request and extract the relevant information */
4158 http_handle_stats(s, req);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]4159 verdict = http_req_get_intercept_rule(px, &px->uri_auth->http_req_rules, s);
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4160 /* not all actions implemented: deny, allow, auth */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4161
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4162 if (verdict == HTTP_RULE_RES_DENY) /* stats http-request deny */
4163 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4164
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4165 if (verdict == HTTP_RULE_RES_ABRT) /* stats auth / stats http-request auth */
4166 goto return_prx_cond;
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +0100[diff] [blame]4167 }
4168
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4169 /* evaluate the req* rules except reqadd */
4170 if (px->req_exp != NULL) {
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]4171 if (apply_filters_to_request(s, req, px) < 0)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4172 goto return_bad_req;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4173
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4174 if (txn->flags & TX_CLDENY)
4175 goto deny;
Willy Tarreauc465fd72009-08-31 00:17:18 +0200[diff] [blame]4176
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4177 if (txn->flags & TX_CLTARPIT)
4178 goto tarpit;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4179 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4180
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]4181 /* add request headers from the rule sets in the same order */
4182 list_for_each_entry(wl, &px->req_add, list) {
4183 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]4184 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]4185 ret = acl_pass(ret);
4186 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
4187 ret = !ret;
4188 if (!ret)
4189 continue;
4190 }
4191
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]4192 if (unlikely(http_header_add_tail(&txn->req, &txn->hdr_idx, wl->s) < 0))
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]4193 goto return_bad_req;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]4194 }
4195
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4196
4197 /* Proceed with the stats now. */
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]4198 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]4199 /* process the stats request now */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4200 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
4201 sess->fe->fe_counters.intercepted_req++;
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]4202
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4203 if (!(s->flags & SF_ERR_MASK)) // this is not really an error but it is
4204 s->flags |= SF_ERR_LOCAL; // to mark that it comes from the proxy
4205 if (!(s->flags & SF_FINST_MASK))
4206 s->flags |= SF_FINST_R;
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]4207
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]4208 /* 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]4209 req->analysers &= (AN_REQ_HTTP_BODY | AN_FLT_HTTP_HDRS | AN_FLT_END);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4210 req->analysers &= ~AN_FLT_XFER_DATA;
4211 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4212 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4213 }
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]4214
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4215 /* check whether we have some ACLs set to redirect this request */
4216 list_for_each_entry(rule, &px->redirect_rules, list) {
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]4217 if (rule->cond) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4218 int ret;
4219
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]4220 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]4221 ret = acl_pass(ret);
4222 if (rule->cond->pol == ACL_COND_UNLESS)
4223 ret = !ret;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4224 if (!ret)
4225 continue;
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]4226 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4227 if (!http_apply_redirect_rule(rule, s, txn))
4228 goto return_bad_req;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4229 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4230 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]4231
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]4232 /* POST requests may be accompanied with an "Expect: 100-Continue" header.
4233 * If this happens, then the data will not come immediately, so we must
4234 * send all what we have without waiting. Note that due to the small gain
4235 * 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]4236 * 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]4237 * itself once used.
4238 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4239 req->flags |= CF_SEND_DONTWAIT;
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]4240
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4241 done: /* done with this analyser, continue with next ones that the calling
4242 * points will have set, if any.
4243 */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4244 req->analyse_exp = TICK_ETERNITY;
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]4245 done_without_exp: /* done with this analyser, but dont reset the analyse_exp. */
4246 req->analysers &= ~an_bit;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4247 return 1;
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]4248
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4249 tarpit:
4250 /* When a connection is tarpitted, we use the tarpit timeout,
4251 * which may be the same as the connect timeout if unspecified.
4252 * If unset, then set it to zero because we really want it to
4253 * eventually expire. We build the tarpit as an analyser.
4254 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4255 channel_erase(&s->req);
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4256
4257 /* wipe the request out so that we can drop the connection early
4258 * if the client closes first.
4259 */
4260 channel_dont_connect(req);
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]4261
4262 /* Allow cookie logging
4263 */
4264 if (s->be->cookie_name || sess->fe->capture_name)
4265 manage_client_side_cookies(s, req);
4266
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4267 req->analysers &= AN_FLT_END; /* remove switching rules etc... */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4268 req->analysers |= AN_REQ_HTTP_TARPIT;
4269 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.tarpit);
4270 if (!req->analyse_exp)
4271 req->analyse_exp = tick_add(now_ms, 0);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4272 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4273 sess->fe->fe_counters.denied_req++;
4274 if (sess->fe != s->be)
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4275 s->be->be_counters.denied_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4276 if (sess->listener->counters)
4277 sess->listener->counters->denied_req++;
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]4278 goto done_without_exp;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4279
4280 deny: /* this request was blocked (denied) */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]4281
4282 /* Allow cookie logging
4283 */
4284 if (s->be->cookie_name || sess->fe->capture_name)
4285 manage_client_side_cookies(s, req);
4286
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4287 txn->flags |= TX_CLDENY;
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]4288 txn->status = http_err_codes[txn->rule_deny_status];
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4289 s->logs.tv_request = now;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4290 http_reply_and_close(s, txn->status, http_error_message(s, txn->rule_deny_status));
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4291 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4292 sess->fe->fe_counters.denied_req++;
4293 if (sess->fe != s->be)
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4294 s->be->be_counters.denied_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4295 if (sess->listener->counters)
4296 sess->listener->counters->denied_req++;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4297 goto return_prx_cond;
4298
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4299 return_bad_req:
4300 /* We centralize bad requests processing here */
4301 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
4302 /* we detected a parsing error. We want to archive this request
4303 * in the dedicated proxy area for later troubleshooting.
4304 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4305 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]4306 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]4307
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4308 txn->req.msg_state = HTTP_MSG_ERROR;
4309 txn->status = 400;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4310 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]4311
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4312 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4313 if (sess->listener->counters)
4314 sess->listener->counters->failed_req++;
Willy Tarreau6e4261e2007-09-18 18:36:05 +0200[diff] [blame]4315
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4316 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4317 if (!(s->flags & SF_ERR_MASK))
4318 s->flags |= SF_ERR_PRXCOND;
4319 if (!(s->flags & SF_FINST_MASK))
4320 s->flags |= SF_FINST_R;
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100[diff] [blame]4321
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4322 req->analysers &= AN_FLT_END;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4323 req->analyse_exp = TICK_ETERNITY;
4324 return 0;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]4325
4326 return_prx_yield:
4327 channel_dont_connect(req);
4328 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4329}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]4330
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4331/* This function performs all the processing enabled for the current request.
4332 * It returns 1 if the processing can continue on next analysers, or zero if it
4333 * needs more data, encounters an error, or wants to immediately abort the
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4334 * request. It relies on buffers flags, and updates s->req.analysers.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4335 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4336int http_process_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4337{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4338 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4339 struct http_txn *txn = s->txn;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4340 struct http_msg *msg = &txn->req;
Willy Tarreauee335e62015-04-21 18:15:13 +0200[diff] [blame]4341 struct connection *cli_conn = objt_conn(strm_sess(s)->origin);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]4342
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]4343 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]4344 /* we need more data */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4345 channel_dont_connect(req);
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]4346 return 0;
4347 }
4348
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4349 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]4350 now_ms, __FUNCTION__,
4351 s,
4352 req,
4353 req->rex, req->wex,
4354 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4355 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4356 req->analysers);
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4357
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4358 /*
4359 * Right now, we know that we have processed the entire headers
4360 * and that unwanted requests have been filtered out. We can do
4361 * whatever we want with the remaining request. Also, now we
4362 * may have separate values for ->fe, ->be.
4363 */
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4364
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4365 /*
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4366 * If HTTP PROXY is set we simply get remote server address parsing
4367 * incoming request. Note that this requires that a connection is
4368 * allocated on the server side.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4369 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4370 if ((s->be->options & PR_O_HTTP_PROXY) && !(s->flags & SF_ADDR_SET)) {
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]4371 struct connection *conn;
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]4372 char *path;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]4373
Willy Tarreau9471b8c2013-12-15 13:31:35 +0100[diff] [blame]4374 /* Note that for now we don't reuse existing proxy connections */
Willy Tarreau973a5422015-08-05 21:47:23 +0200[diff] [blame]4375 if (unlikely((conn = si_alloc_conn(&s->si[1])) == NULL)) {
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]4376 txn->req.msg_state = HTTP_MSG_ERROR;
4377 txn->status = 500;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4378 req->analysers &= AN_FLT_END;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4379 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_500));
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]4380
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4381 if (!(s->flags & SF_ERR_MASK))
4382 s->flags |= SF_ERR_RESOURCE;
4383 if (!(s->flags & SF_FINST_MASK))
4384 s->flags |= SF_FINST_R;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]4385
4386 return 0;
4387 }
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]4388
4389 path = http_get_path(txn);
4390 url2sa(req->buf->p + msg->sl.rq.u,
4391 path ? path - (req->buf->p + msg->sl.rq.u) : msg->sl.rq.u_l,
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]4392 &conn->addr.to, NULL);
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]4393 /* if the path was found, we have to remove everything between
4394 * req->buf->p + msg->sl.rq.u and path (excluded). If it was not
4395 * found, we need to replace from req->buf->p + msg->sl.rq.u for
4396 * u_l characters by a single "/".
4397 */
4398 if (path) {
4399 char *cur_ptr = req->buf->p;
4400 char *cur_end = cur_ptr + txn->req.sl.rq.l;
4401 int delta;
4402
4403 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u, path, NULL, 0);
4404 http_msg_move_end(&txn->req, delta);
4405 cur_end += delta;
4406 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
4407 goto return_bad_req;
4408 }
4409 else {
4410 char *cur_ptr = req->buf->p;
4411 char *cur_end = cur_ptr + txn->req.sl.rq.l;
4412 int delta;
4413
4414 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u,
4415 req->buf->p + msg->sl.rq.u + msg->sl.rq.u_l, "/", 1);
4416 http_msg_move_end(&txn->req, delta);
4417 cur_end += delta;
4418 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
4419 goto return_bad_req;
4420 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4421 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]4422
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4423 /*
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]4424 * 7: Now we can work with the cookies.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4425 * Note that doing so might move headers in the request, but
4426 * the fields will stay coherent and the URI will not move.
4427 * This should only be performed in the backend.
4428 */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]4429 if (s->be->cookie_name || sess->fe->capture_name)
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4430 manage_client_side_cookies(s, req);
Willy Tarreau7ac51f62007-03-25 16:00:04 +0200[diff] [blame]4431
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]4432 /* add unique-id if "header-unique-id" is specified */
4433
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]4434 if (!LIST_ISEMPTY(&sess->fe->format_unique_id) && !s->unique_id) {
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]4435 if ((s->unique_id = pool_alloc2(pool2_uniqueid)) == NULL)
4436 goto return_bad_req;
4437 s->unique_id[0] = '\0';
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4438 build_logline(s, s->unique_id, UNIQUEID_LEN, &sess->fe->format_unique_id);
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]4439 }
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]4440
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4441 if (sess->fe->header_unique_id && s->unique_id) {
4442 chunk_printf(&trash, "%s: %s", sess->fe->header_unique_id, s->unique_id);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4443 if (trash.len < 0)
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]4444 goto return_bad_req;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4445 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]4446 goto return_bad_req;
4447 }
4448
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]4449 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4450 * 9: add X-Forwarded-For if either the frontend or the backend
4451 * asks for it.
4452 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4453 if ((sess->fe->options | s->be->options) & PR_O_FWDFOR) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]4454 struct hdr_ctx ctx = { .idx = 0 };
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4455 if (!((sess->fe->options | s->be->options) & PR_O_FF_ALWAYS) &&
4456 http_find_header2(s->be->fwdfor_hdr_len ? s->be->fwdfor_hdr_name : sess->fe->fwdfor_hdr_name,
4457 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]4458 req->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]4459 /* The header is set to be added only if none is present
4460 * and we found it, so don't do anything.
4461 */
4462 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4463 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4464 /* Add an X-Forwarded-For header unless the source IP is
4465 * in the 'except' network range.
4466 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4467 if ((!sess->fe->except_mask.s_addr ||
4468 (((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr.s_addr & sess->fe->except_mask.s_addr)
4469 != sess->fe->except_net.s_addr) &&
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4470 (!s->be->except_mask.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4471 (((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]4472 != s->be->except_net.s_addr)) {
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]4473 int len;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4474 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4475 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr;
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]4476
4477 /* Note: we rely on the backend to get the header name to be used for
4478 * x-forwarded-for, because the header is really meant for the backends.
4479 * However, if the backend did not specify any option, we have to rely
4480 * on the frontend's header name.
4481 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4482 if (s->be->fwdfor_hdr_len) {
4483 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4484 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]4485 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4486 len = sess->fe->fwdfor_hdr_len;
4487 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]4488 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]4489 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]4490
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4491 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]4492 goto return_bad_req;
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]4493 }
4494 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4495 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET6) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4496 /* FIXME: for the sake of completeness, we should also support
4497 * 'except' here, although it is mostly useless in this case.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]4498 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4499 int len;
4500 char pn[INET6_ADDRSTRLEN];
4501 inet_ntop(AF_INET6,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4502 (const void *)&((struct sockaddr_in6 *)(&cli_conn->addr.from))->sin6_addr,
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4503 pn, sizeof(pn));
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]4504
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4505 /* Note: we rely on the backend to get the header name to be used for
4506 * x-forwarded-for, because the header is really meant for the backends.
4507 * However, if the backend did not specify any option, we have to rely
4508 * on the frontend's header name.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]4509 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4510 if (s->be->fwdfor_hdr_len) {
4511 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4512 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4513 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4514 len = sess->fe->fwdfor_hdr_len;
4515 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]4516 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]4517 len += snprintf(trash.str + len, trash.size - len, ": %s", pn);
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]4518
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4519 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]4520 goto return_bad_req;
4521 }
4522 }
4523
4524 /*
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4525 * 10: add X-Original-To if either the frontend or the backend
4526 * asks for it.
4527 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4528 if ((sess->fe->options | s->be->options) & PR_O_ORGTO) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4529
4530 /* FIXME: don't know if IPv6 can handle that case too. */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4531 if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4532 /* Add an X-Original-To header unless the destination IP is
4533 * in the 'except' network range.
4534 */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4535 conn_get_to_addr(cli_conn);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4536
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4537 if (cli_conn->addr.to.ss_family == AF_INET &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4538 ((!sess->fe->except_mask_to.s_addr ||
4539 (((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr.s_addr & sess->fe->except_mask_to.s_addr)
4540 != sess->fe->except_to.s_addr) &&
Emeric Brun5bd86a82010-10-22 17:23:04 +0200[diff] [blame]4541 (!s->be->except_mask_to.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4542 (((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]4543 != s->be->except_to.s_addr))) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4544 int len;
4545 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4546 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr;
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4547
4548 /* Note: we rely on the backend to get the header name to be used for
4549 * x-original-to, because the header is really meant for the backends.
4550 * However, if the backend did not specify any option, we have to rely
4551 * on the frontend's header name.
4552 */
4553 if (s->be->orgto_hdr_len) {
4554 len = s->be->orgto_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4555 memcpy(trash.str, s->be->orgto_hdr_name, len);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4556 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4557 len = sess->fe->orgto_hdr_len;
4558 memcpy(trash.str, sess->fe->orgto_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]4559 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]4560 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]4561
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4562 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]4563 goto return_bad_req;
4564 }
4565 }
4566 }
4567
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]4568 /* 11: add "Connection: close" or "Connection: keep-alive" if needed and not yet set.
4569 * If an "Upgrade" token is found, the header is left untouched in order not to have
4570 * to deal with some servers bugs : some of them fail an Upgrade if anything but
4571 * "Upgrade" is present in the Connection header.
4572 */
4573 if (!(txn->flags & TX_HDR_CONN_UPG) &&
4574 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4575 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]4576 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]4577 unsigned int want_flags = 0;
4578
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4579 if (msg->flags & HTTP_MSGF_VER_11) {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]4580 if (((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4581 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]4582 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4583 !((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]4584 want_flags |= TX_CON_CLO_SET;
4585 } else {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]4586 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4587 ((sess->fe->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL &&
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]4588 (s->be->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL)) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4589 ((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]4590 want_flags |= TX_CON_KAL_SET;
4591 }
4592
4593 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]4594 http_change_connection_header(txn, msg, want_flags);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4595 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4596
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]4597
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4598 /* If we have no server assigned yet and we're balancing on url_param
4599 * with a POST request, we may be interested in checking the body for
4600 * that parameter. This will be done in another analyser.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4601 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4602 if (!(s->flags & (SF_ASSIGNED|SF_DIRECT)) &&
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4603 s->txn->meth == HTTP_METH_POST && s->be->url_param_name != NULL &&
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4604 (msg->flags & (HTTP_MSGF_CNT_LEN|HTTP_MSGF_TE_CHNK))) {
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4605 channel_dont_connect(req);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4606 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4607 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]4608
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4609 if (msg->flags & HTTP_MSGF_XFER_LEN) {
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4610 req->analysers &= ~AN_FLT_XFER_DATA;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4611 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]4612#ifdef TCP_QUICKACK
4613 /* We expect some data from the client. Unless we know for sure
4614 * we already have a full request, we have to re-enable quick-ack
4615 * in case we previously disabled it, otherwise we might cause
4616 * the client to delay further data.
4617 */
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4618 if ((sess->listener->options & LI_O_NOQUICKACK) &&
Willy Tarreau3c728722014-01-23 13:50:42 +0100[diff] [blame]4619 cli_conn && conn_ctrl_ready(cli_conn) &&
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4620 ((msg->flags & HTTP_MSGF_TE_CHNK) ||
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4621 (msg->body_len > req->buf->i - txn->req.eoh - 2)))
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4622 setsockopt(cli_conn->t.sock.fd, IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one));
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]4623#endif
4624 }
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]4625
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4626 /*************************************************************
4627 * OK, that's finished for the headers. We have done what we *
4628 * could. Let's switch to the DATA state. *
4629 ************************************************************/
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4630 req->analyse_exp = TICK_ETERNITY;
4631 req->analysers &= ~an_bit;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]4632
Willy Tarreau7bb68ab2012-05-13 14:48:59 +0200[diff] [blame]4633 /* if the server closes the connection, we want to immediately react
4634 * and close the socket to save packets and syscalls.
4635 */
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4636 if (!(req->analysers & AN_REQ_HTTP_XFER_BODY))
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4637 s->si[1].flags |= SI_FL_NOHALF;
Willy Tarreau7bb68ab2012-05-13 14:48:59 +0200[diff] [blame]4638
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4639 s->logs.tv_request = now;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4640 /* OK let's go on with the BODY now */
4641 return 1;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4642
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4643 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]4644 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
Willy Tarreauf073a832009-03-01 23:21:47 +0100[diff] [blame]4645 /* we detected a parsing error. We want to archive this request
4646 * in the dedicated proxy area for later troubleshooting.
4647 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4648 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]4649 }
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]4650
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4651 txn->req.msg_state = HTTP_MSG_ERROR;
4652 txn->status = 400;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4653 req->analysers &= AN_FLT_END;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4654 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]4655
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4656 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4657 if (sess->listener->counters)
4658 sess->listener->counters->failed_req++;
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]4659
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4660 if (!(s->flags & SF_ERR_MASK))
4661 s->flags |= SF_ERR_PRXCOND;
4662 if (!(s->flags & SF_FINST_MASK))
4663 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]4664 return 0;
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]4665}
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]4666
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4667/* This function is an analyser which processes the HTTP tarpit. It always
4668 * returns zero, at the beginning because it prevents any other processing
4669 * from occurring, and at the end because it terminates the request.
4670 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4671int http_process_tarpit(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4672{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4673 struct http_txn *txn = s->txn;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4674
4675 /* This connection is being tarpitted. The CLIENT side has
4676 * already set the connect expiration date to the right
4677 * timeout. We just have to check that the client is still
4678 * there and that the timeout has not expired.
4679 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4680 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4681 if ((req->flags & (CF_SHUTR|CF_READ_ERROR)) == 0 &&
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4682 !tick_is_expired(req->analyse_exp, now_ms))
4683 return 0;
4684
4685 /* We will set the queue timer to the time spent, just for
4686 * logging purposes. We fake a 500 server error, so that the
4687 * attacker will not suspect his connection has been tarpitted.
4688 * It will not cause trouble to the logs because we can exclude
4689 * the tarpitted connections by filtering on the 'PT' status flags.
4690 */
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4691 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
4692
4693 txn->status = 500;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4694 if (!(req->flags & CF_READ_ERROR))
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4695 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_500));
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4696
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4697 req->analysers &= AN_FLT_END;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4698 req->analyse_exp = TICK_ETERNITY;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]4699
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4700 if (!(s->flags & SF_ERR_MASK))
4701 s->flags |= SF_ERR_PRXCOND;
4702 if (!(s->flags & SF_FINST_MASK))
4703 s->flags |= SF_FINST_T;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4704 return 0;
4705}
4706
Willy Tarreau5a8f9472014-04-10 11:16:06 +0200[diff] [blame]4707/* This function is an analyser which waits for the HTTP request body. It waits
4708 * for either the buffer to be full, or the full advertised contents to have
4709 * reached the buffer. It must only be called after the standard HTTP request
4710 * processing has occurred, because it expects the request to be parsed and will
4711 * look for the Expect header. It may send a 100-Continue interim response. It
4712 * takes in input any state starting from HTTP_MSG_BODY and leaves with one of
4713 * HTTP_MSG_CHK_SIZE, HTTP_MSG_DATA or HTTP_MSG_TRAILERS. It returns zero if it
4714 * needs to read more data, or 1 once it has completed its analysis.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4715 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4716int http_wait_for_request_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4717{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4718 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4719 struct http_txn *txn = s->txn;
4720 struct http_msg *msg = &s->txn->req;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4721
4722 /* We have to parse the HTTP request body to find any required data.
4723 * "balance url_param check_post" should have been the only way to get
4724 * into this. We were brought here after HTTP header analysis, so all
4725 * related structures are ready.
4726 */
4727
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4728 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE) {
4729 /* This is the first call */
4730 if (msg->msg_state < HTTP_MSG_BODY)
4731 goto missing_data;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4732
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4733 if (msg->msg_state < HTTP_MSG_100_SENT) {
4734 /* If we have HTTP/1.1 and Expect: 100-continue, then we must
4735 * send an HTTP/1.1 100 Continue intermediate response.
4736 */
4737 if (msg->flags & HTTP_MSGF_VER_11) {
4738 struct hdr_ctx ctx;
4739 ctx.idx = 0;
4740 /* Expect is allowed in 1.1, look for it */
4741 if (http_find_header2("Expect", 6, req->buf->p, &txn->hdr_idx, &ctx) &&
4742 unlikely(ctx.vlen == 12 && strncasecmp(ctx.line+ctx.val, "100-continue", 12) == 0)) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4743 bo_inject(&s->res, http_100_chunk.str, http_100_chunk.len);
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4744 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4745 }
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4746 msg->msg_state = HTTP_MSG_100_SENT;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4747 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4748
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]4749 /* we have msg->sov which points to the first byte of message body.
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4750 * req->buf->p still points to the beginning of the message. We
4751 * must save the body in msg->next because it survives buffer
4752 * re-alignments.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4753 */
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]4754 msg->next = msg->sov;
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4755
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4756 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4757 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
4758 else
4759 msg->msg_state = HTTP_MSG_DATA;
4760 }
4761
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4762 if (!(msg->flags & HTTP_MSGF_TE_CHNK)) {
4763 /* We're in content-length mode, we just have to wait for enough data. */
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4764 if (http_body_bytes(msg) < msg->body_len)
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4765 goto missing_data;
4766
4767 /* OK we have everything we need now */
4768 goto http_end;
4769 }
4770
4771 /* OK here we're parsing a chunked-encoded message */
4772
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4773 if (msg->msg_state == HTTP_MSG_CHUNK_SIZE) {
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]4774 /* read the chunk size and assign it to ->chunk_len, then
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4775 * set ->sov and ->next to point to the body and switch to DATA or
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4776 * TRAILERS state.
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4777 */
Willy Tarreau4baf44b2012-03-09 14:10:20 +0100[diff] [blame]4778 int ret = http_parse_chunk_size(msg);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4779
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4780 if (!ret)
4781 goto missing_data;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4782 else if (ret < 0) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4783 stream_inc_http_err_ctr(s);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4784 goto return_bad_req;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4785 }
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]4786 msg->next += ret;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4787 msg->msg_state = msg->chunk_len ? HTTP_MSG_DATA : HTTP_MSG_TRAILERS;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4788 }
4789
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4790 /* Now we're in HTTP_MSG_DATA or HTTP_MSG_TRAILERS state.
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4791 * We have the first data byte is in msg->sov + msg->sol. We're waiting
4792 * for at least a whole chunk or the whole content length bytes after
4793 * msg->sov + msg->sol.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4794 */
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4795 if (msg->msg_state == HTTP_MSG_TRAILERS)
4796 goto http_end;
4797
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4798 if (http_body_bytes(msg) >= msg->body_len) /* we have enough bytes now */
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4799 goto http_end;
4800
4801 missing_data:
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4802 /* we get here if we need to wait for more data. If the buffer is full,
4803 * we have the maximum we can expect.
4804 */
4805 if (buffer_full(req->buf, global.tune.maxrewrite))
4806 goto http_end;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4807
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4808 if ((req->flags & CF_READ_TIMEOUT) || tick_is_expired(req->analyse_exp, now_ms)) {
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4809 txn->status = 408;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4810 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_408));
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4811
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4812 if (!(s->flags & SF_ERR_MASK))
4813 s->flags |= SF_ERR_CLITO;
4814 if (!(s->flags & SF_FINST_MASK))
4815 s->flags |= SF_FINST_D;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4816 goto return_err_msg;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4817 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4818
4819 /* we get here if we need to wait for more data */
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4820 if (!(req->flags & (CF_SHUTR | CF_READ_ERROR))) {
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4821 /* Not enough data. We'll re-use the http-request
4822 * timeout here. Ideally, we should set the timeout
4823 * relative to the accept() date. We just set the
4824 * request timeout once at the beginning of the
4825 * request.
4826 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4827 channel_dont_connect(req);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4828 if (!tick_isset(req->analyse_exp))
Willy Tarreaucd7afc02009-07-12 10:03:17 +0200[diff] [blame]4829 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4830 return 0;
4831 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4832
4833 http_end:
4834 /* The situation will not evolve, so let's give up on the analysis. */
4835 s->logs.tv_request = now; /* update the request timer to reflect full request */
4836 req->analysers &= ~an_bit;
4837 req->analyse_exp = TICK_ETERNITY;
4838 return 1;
4839
4840 return_bad_req: /* let's centralize all bad requests */
4841 txn->req.msg_state = HTTP_MSG_ERROR;
4842 txn->status = 400;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4843 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_400));
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4844
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4845 if (!(s->flags & SF_ERR_MASK))
4846 s->flags |= SF_ERR_PRXCOND;
4847 if (!(s->flags & SF_FINST_MASK))
4848 s->flags |= SF_FINST_R;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4849
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4850 return_err_msg:
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4851 req->analysers &= AN_FLT_END;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4852 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4853 if (sess->listener->counters)
4854 sess->listener->counters->failed_req++;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4855 return 0;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4856}
4857
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4858/* send a server's name with an outgoing request over an established connection.
4859 * Note: this function is designed to be called once the request has been scheduled
4860 * for being forwarded. This is the reason why it rewinds the buffer before
4861 * proceeding.
4862 */
Willy Tarreau45c0d982012-03-09 12:11:57 +0100[diff] [blame]4863int 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]4864
4865 struct hdr_ctx ctx;
4866
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4867 char *hdr_name = be->server_id_hdr_name;
4868 int hdr_name_len = be->server_id_hdr_len;
Willy Tarreau394db372012-10-12 22:40:39 +0200[diff] [blame]4869 struct channel *chn = txn->req.chn;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4870 char *hdr_val;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4871 unsigned int old_o, old_i;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4872
William Lallemandd9e90662012-01-30 17:27:17 +0100[diff] [blame]4873 ctx.idx = 0;
4874
Willy Tarreau211cdec2014-04-17 20:18:08 +0200[diff] [blame]4875 old_o = http_hdr_rewind(&txn->req);
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4876 if (old_o) {
4877 /* The request was already skipped, let's restore it */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4878 b_rew(chn->buf, old_o);
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4879 txn->req.next += old_o;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4880 txn->req.sov += old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4881 }
4882
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4883 old_i = chn->buf->i;
4884 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]4885 /* remove any existing values from the header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]4886 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4887 }
4888
4889 /* Add the new header requested with the server value */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4890 hdr_val = trash.str;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4891 memcpy(hdr_val, hdr_name, hdr_name_len);
4892 hdr_val += hdr_name_len;
4893 *hdr_val++ = ':';
4894 *hdr_val++ = ' ';
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4895 hdr_val += strlcpy2(hdr_val, srv_name, trash.str + trash.size - hdr_val);
4896 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]4897
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4898 if (old_o) {
4899 /* If this was a forwarded request, we must readjust the amount of
4900 * data to be forwarded in order to take into account the size
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4901 * variations. Note that the current state is >= HTTP_MSG_BODY,
4902 * so we don't have to adjust ->sol.
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4903 */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4904 old_o += chn->buf->i - old_i;
4905 b_adv(chn->buf, old_o);
4906 txn->req.next -= old_o;
4907 txn->req.sov -= old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4908 }
4909
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4910 return 0;
4911}
4912
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4913/* Terminate current transaction and prepare a new one. This is very tricky
4914 * right now but it works.
4915 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4916void http_end_txn_clean_session(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4917{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4918 int prev_status = s->txn->status;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]4919 struct proxy *fe = strm_fe(s);
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4920 struct proxy *be = s->be;
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4921 struct connection *srv_conn;
4922 struct server *srv;
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4923 unsigned int prev_flags = s->txn->flags;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4924
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4925 /* FIXME: We need a more portable way of releasing a backend's and a
4926 * server's connections. We need a safer way to reinitialize buffer
4927 * flags. We also need a more accurate method for computing per-request
4928 * data.
4929 */
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4930 srv_conn = objt_conn(s->si[1].end);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4931
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4932 /* unless we're doing keep-alive, we want to quickly close the connection
4933 * to the server.
4934 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4935 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4936 !si_conn_ready(&s->si[1])) {
4937 s->si[1].flags |= SI_FL_NOLINGER | SI_FL_NOHALF;
4938 si_shutr(&s->si[1]);
4939 si_shutw(&s->si[1]);
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4940 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4941
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4942 if (s->flags & SF_BE_ASSIGNED) {
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4943 be->beconn--;
Willy Tarreau2d5cd472012-03-01 23:34:37 +0100[diff] [blame]4944 if (unlikely(s->srv_conn))
4945 sess_change_server(s, NULL);
4946 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4947
4948 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4949 stream_process_counters(s);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4950
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4951 if (s->txn->status) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4952 int n;
4953
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4954 n = s->txn->status / 100;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4955 if (n < 1 || n > 5)
4956 n = 0;
4957
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4958 if (fe->mode == PR_MODE_HTTP) {
4959 fe->fe_counters.p.http.rsp[n]++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4960 }
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4961 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4962 (be->mode == PR_MODE_HTTP)) {
4963 be->be_counters.p.http.rsp[n]++;
4964 be->be_counters.p.http.cum_req++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4965 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4966 }
4967
4968 /* don't count other requests' data */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4969 s->logs.bytes_in -= s->req.buf->i;
4970 s->logs.bytes_out -= s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4971
4972 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4973 if (!LIST_ISEMPTY(&fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4974 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4975 (!(fe->options & PR_O_NULLNOLOG) || s->req.total)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4976 s->do_log(s);
4977 }
4978
Willy Tarreaud713bcc2014-06-25 15:36:04 +0200[diff] [blame]4979 /* stop tracking content-based counters */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4980 stream_stop_content_counters(s);
4981 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +0200[diff] [blame]4982
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4983 s->logs.accept_date = date; /* user-visible date for logging */
4984 s->logs.tv_accept = now; /* corrected date for internal use */
4985 tv_zero(&s->logs.tv_request);
4986 s->logs.t_queue = -1;
4987 s->logs.t_connect = -1;
4988 s->logs.t_data = -1;
4989 s->logs.t_close = 0;
4990 s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */
4991 s->logs.srv_queue_size = 0; /* we will get this number soon */
4992
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4993 s->logs.bytes_in = s->req.total = s->req.buf->i;
4994 s->logs.bytes_out = s->res.total = s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4995
4996 if (s->pend_pos)
4997 pendconn_free(s->pend_pos);
4998
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4999 if (objt_server(s->target)) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5000 if (s->flags & SF_CURR_SESS) {
5001 s->flags &= ~SF_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5002 objt_server(s->target)->cur_sess--;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5003 }
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]5004 if (may_dequeue_tasks(objt_server(s->target), be))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5005 process_srv_queue(objt_server(s->target));
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5006 }
5007
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5008 s->target = NULL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5009
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5010 /* only release our endpoint if we don't intend to reuse the
5011 * connection.
5012 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5013 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5014 !si_conn_ready(&s->si[1])) {
5015 si_release_endpoint(&s->si[1]);
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]5016 srv_conn = NULL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5017 }
5018
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5019 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
5020 s->si[1].err_type = SI_ET_NONE;
5021 s->si[1].conn_retries = 0; /* used for logging too */
5022 s->si[1].exp = TICK_ETERNITY;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5023 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]5024 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);
5025 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]5026 s->flags &= ~(SF_DIRECT|SF_ASSIGNED|SF_ADDR_SET|SF_BE_ASSIGNED|SF_FORCE_PRST|SF_IGNORE_PRST);
5027 s->flags &= ~(SF_CURR_SESS|SF_REDIRECTABLE|SF_SRV_REUSED);
5028 s->flags &= ~(SF_ERR_MASK|SF_FINST_MASK|SF_REDISP);
Willy Tarreau543db622012-11-15 16:41:22 +0100[diff] [blame]5029
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5030 s->txn->meth = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5031 http_reset_txn(s);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5032 s->txn->flags |= TX_NOT_FIRST | TX_WAIT_NEXT_RQ;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]5033
5034 if (prev_status == 401 || prev_status == 407) {
5035 /* In HTTP keep-alive mode, if we receive a 401, we still have
5036 * a chance of being able to send the visitor again to the same
5037 * server over the same connection. This is required by some
5038 * broken protocols such as NTLM, and anyway whenever there is
5039 * an opportunity for sending the challenge to the proper place,
5040 * it's better to do it (at least it helps with debugging).
5041 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5042 s->txn->flags |= TX_PREFER_LAST;
Willy Tarreaubd99d582015-09-02 10:40:43 +0200[diff] [blame]5043 if (srv_conn)
5044 srv_conn->flags |= CO_FL_PRIVATE;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]5045 }
5046
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]5047 /* Never ever allow to reuse a connection from a non-reuse backend */
5048 if (srv_conn && (be->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
5049 srv_conn->flags |= CO_FL_PRIVATE;
5050
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5051 if (fe->options2 & PR_O2_INDEPSTR)
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5052 s->si[1].flags |= SI_FL_INDEP_STR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5053
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5054 if (fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5055 s->req.flags |= CF_NEVER_WAIT;
5056 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200[diff] [blame]5057 }
5058
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5059 /* if the request buffer is not empty, it means we're
5060 * about to process another request, so send pending
5061 * data with MSG_MORE to merge TCP packets when possible.
Willy Tarreau065e8332010-01-08 00:30:20 +0100[diff] [blame]5062 * Just don't do this if the buffer is close to be full,
5063 * because the request will wait for it to flush a little
5064 * bit before proceeding.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5065 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5066 if (s->req.buf->i) {
5067 if (s->res.buf->o &&
5068 !buffer_full(s->res.buf, global.tune.maxrewrite) &&
5069 bi_end(s->res.buf) <= s->res.buf->data + s->res.buf->size - global.tune.maxrewrite)
5070 s->res.flags |= CF_EXPECT_MORE;
Willy Tarreau065e8332010-01-08 00:30:20 +0100[diff] [blame]5071 }
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]5072
Willy Tarreau714ea782015-11-25 20:11:11 +0100[diff] [blame]5073 /* we're removing the analysers, we MUST re-enable events detection.
5074 * We don't enable close on the response channel since it's either
5075 * already closed, or in keep-alive with an idle connection handler.
5076 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5077 channel_auto_read(&s->req);
5078 channel_auto_close(&s->req);
5079 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5080
Willy Tarreau1c59bd52015-11-02 20:20:11 +0100[diff] [blame]5081 /* we're in keep-alive with an idle connection, monitor it if not already done */
5082 if (srv_conn && LIST_ISEMPTY(&srv_conn->list)) {
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]5083 srv = objt_server(srv_conn->target);
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]5084 if (!srv)
5085 si_idle_conn(&s->si[1], NULL);
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]5086 else if (srv_conn->flags & CO_FL_PRIVATE)
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]5087 si_idle_conn(&s->si[1], &srv->priv_conns);
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]5088 else if (prev_flags & TX_NOT_FIRST)
5089 /* note: we check the request, not the connection, but
5090 * this is valid for strategies SAFE and AGGR, and in
5091 * case of ALWS, we don't care anyway.
5092 */
5093 si_idle_conn(&s->si[1], &srv->safe_conns);
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]5094 else
5095 si_idle_conn(&s->si[1], &srv->idle_conns);
Willy Tarreau4320eaa2015-08-05 11:08:30 +0200[diff] [blame]5096 }
Willy Tarreau27375622013-12-17 00:00:28 +0100[diff] [blame]5097
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5098 if (HAS_FILTERS(s)) {
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5099 s->req.analysers &= AN_FLT_END;
5100 s->res.analysers &= AN_FLT_END;
5101 }
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5102 else {
5103 s->req.analysers = strm_li(s) ? strm_li(s)->analysers : 0;
5104 s->res.analysers = 0;
5105 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5106}
5107
5108
5109/* This function updates the request state machine according to the response
5110 * state machine and buffer flags. It returns 1 if it changes anything (flag
5111 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
5112 * it is only used to find when a request/response couple is complete. Both
5113 * this function and its equivalent should loop until both return zero. It
5114 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
5115 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5116int http_sync_req_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5117{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5118 struct channel *chn = &s->req;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5119 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5120 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5121 unsigned int old_state = txn->req.msg_state;
5122
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5123 if (unlikely(txn->req.msg_state < HTTP_MSG_BODY))
5124 return 0;
5125
5126 if (txn->req.msg_state == HTTP_MSG_DONE) {
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]5127 /* No need to read anymore, the request was completely parsed.
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]5128 * We can shut the read side unless we want to abort_on_close,
5129 * or we have a POST request. The issue with POST requests is
5130 * that some browsers still send a CRLF after the request, and
5131 * this CRLF must be read so that it does not remain in the kernel
5132 * buffers, otherwise a close could cause an RST on some systems
5133 * (eg: Linux).
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]5134 * Note that if we're using keep-alive on the client side, we'd
5135 * rather poll now and keep the polling enabled for the whole
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5136 * stream's life than enabling/disabling it between each
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]5137 * response and next request.
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]5138 */
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]5139 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
5140 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
5141 !(s->be->options & PR_O_ABRT_CLOSE) &&
5142 txn->meth != HTTP_METH_POST)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5143 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5144
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]5145 /* if the server closes the connection, we want to immediately react
5146 * and close the socket to save packets and syscalls.
5147 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5148 s->si[1].flags |= SI_FL_NOHALF;
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]5149
Willy Tarreau7f876a12015-11-18 11:59:55 +0100[diff] [blame]5150 /* In any case we've finished parsing the request so we must
5151 * disable Nagle when sending data because 1) we're not going
5152 * to shut this side, and 2) the server is waiting for us to
5153 * send pending data.
5154 */
5155 chn->flags |= CF_NEVER_WAIT;
5156
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5157 if (txn->rsp.msg_state == HTTP_MSG_ERROR)
5158 goto wait_other_side;
5159
5160 if (txn->rsp.msg_state < HTTP_MSG_DONE) {
5161 /* The server has not finished to respond, so we
5162 * don't want to move in order not to upset it.
5163 */
5164 goto wait_other_side;
5165 }
5166
5167 if (txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
5168 /* if any side switches to tunnel mode, the other one does too */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5169 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5170 txn->req.msg_state = HTTP_MSG_TUNNEL;
5171 goto wait_other_side;
5172 }
5173
5174 /* When we get here, it means that both the request and the
5175 * response have finished receiving. Depending on the connection
5176 * mode, we'll have to wait for the last bytes to leave in either
5177 * direction, and sometimes for a close to be effective.
5178 */
5179
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5180 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
5181 /* Server-close mode : queue a connection close to the server */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5182 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW)))
5183 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5184 }
5185 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
5186 /* Option forceclose is set, or either side wants to close,
5187 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5188 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5189 * once both states are CLOSED.
5190 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5191 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
5192 channel_shutr_now(chn);
5193 channel_shutw_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5194 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5195 }
5196 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5197 /* The last possible modes are keep-alive and tunnel. Tunnel mode
5198 * will not have any analyser so it needs to poll for reads.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5199 */
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5200 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN) {
5201 channel_auto_read(chn);
5202 txn->req.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5203 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5204 }
5205
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5206 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5207 /* if we've just closed an output, let's switch */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5208 s->si[1].flags |= SI_FL_NOLINGER; /* we want to close ASAP */
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5209
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5210 if (!channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5211 txn->req.msg_state = HTTP_MSG_CLOSING;
5212 goto http_msg_closing;
5213 }
5214 else {
5215 txn->req.msg_state = HTTP_MSG_CLOSED;
5216 goto http_msg_closed;
5217 }
5218 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5219 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5220 }
5221
5222 if (txn->req.msg_state == HTTP_MSG_CLOSING) {
5223 http_msg_closing:
5224 /* nothing else to forward, just waiting for the output buffer
5225 * to be empty and for the shutw_now to take effect.
5226 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5227 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5228 txn->req.msg_state = HTTP_MSG_CLOSED;
5229 goto http_msg_closed;
5230 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5231 else if (chn->flags & CF_SHUTW) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5232 txn->req.msg_state = HTTP_MSG_ERROR;
5233 goto wait_other_side;
5234 }
5235 }
5236
5237 if (txn->req.msg_state == HTTP_MSG_CLOSED) {
5238 http_msg_closed:
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]5239 /* see above in MSG_DONE why we only do this in these states */
5240 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
5241 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
5242 !(s->be->options & PR_O_ABRT_CLOSE))
Willy Tarreau2e7a1652013-12-15 15:32:10 +0100[diff] [blame]5243 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5244 goto wait_other_side;
5245 }
5246
5247 wait_other_side:
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5248 return txn->req.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5249}
5250
5251
5252/* This function updates the response state machine according to the request
5253 * state machine and buffer flags. It returns 1 if it changes anything (flag
5254 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
5255 * it is only used to find when a request/response couple is complete. Both
5256 * this function and its equivalent should loop until both return zero. It
5257 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
5258 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5259int http_sync_res_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5260{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5261 struct channel *chn = &s->res;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5262 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5263 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5264 unsigned int old_state = txn->rsp.msg_state;
5265
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5266 if (unlikely(txn->rsp.msg_state < HTTP_MSG_BODY))
5267 return 0;
5268
5269 if (txn->rsp.msg_state == HTTP_MSG_DONE) {
5270 /* In theory, we don't need to read anymore, but we must
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]5271 * still monitor the server connection for a possible close
5272 * while the request is being uploaded, so we don't disable
5273 * reading.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5274 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5275 /* channel_dont_read(chn); */
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5276
5277 if (txn->req.msg_state == HTTP_MSG_ERROR)
5278 goto wait_other_side;
5279
5280 if (txn->req.msg_state < HTTP_MSG_DONE) {
5281 /* The client seems to still be sending data, probably
5282 * because we got an error response during an upload.
5283 * We have the choice of either breaking the connection
5284 * or letting it pass through. Let's do the later.
5285 */
5286 goto wait_other_side;
5287 }
5288
5289 if (txn->req.msg_state == HTTP_MSG_TUNNEL) {
5290 /* if any side switches to tunnel mode, the other one does too */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5291 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5292 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]5293 chn->flags |= CF_NEVER_WAIT;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5294 goto wait_other_side;
5295 }
5296
5297 /* When we get here, it means that both the request and the
5298 * response have finished receiving. Depending on the connection
5299 * mode, we'll have to wait for the last bytes to leave in either
5300 * direction, and sometimes for a close to be effective.
5301 */
5302
5303 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
5304 /* Server-close mode : shut read and wait for the request
5305 * side to close its output buffer. The caller will detect
5306 * when we're in DONE and the other is in CLOSED and will
5307 * catch that for the final cleanup.
5308 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5309 if (!(chn->flags & (CF_SHUTR|CF_SHUTR_NOW)))
5310 channel_shutr_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5311 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5312 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
5313 /* Option forceclose is set, or either side wants to close,
5314 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5315 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5316 * once both states are CLOSED.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5317 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5318 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
5319 channel_shutr_now(chn);
5320 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5321 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5322 }
5323 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5324 /* The last possible modes are keep-alive and tunnel. Tunnel will
5325 * need to forward remaining data. Keep-alive will need to monitor
5326 * for connection closing.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5327 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5328 channel_auto_read(chn);
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]5329 chn->flags |= CF_NEVER_WAIT;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5330 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN)
5331 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5332 }
5333
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5334 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5335 /* if we've just closed an output, let's switch */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5336 if (!channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5337 txn->rsp.msg_state = HTTP_MSG_CLOSING;
5338 goto http_msg_closing;
5339 }
5340 else {
5341 txn->rsp.msg_state = HTTP_MSG_CLOSED;
5342 goto http_msg_closed;
5343 }
5344 }
5345 goto wait_other_side;
5346 }
5347
5348 if (txn->rsp.msg_state == HTTP_MSG_CLOSING) {
5349 http_msg_closing:
5350 /* nothing else to forward, just waiting for the output buffer
5351 * to be empty and for the shutw_now to take effect.
5352 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5353 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5354 txn->rsp.msg_state = HTTP_MSG_CLOSED;
5355 goto http_msg_closed;
5356 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5357 else if (chn->flags & CF_SHUTW) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5358 txn->rsp.msg_state = HTTP_MSG_ERROR;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5359 s->be->be_counters.cli_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5360 if (objt_server(s->target))
5361 objt_server(s->target)->counters.cli_aborts++;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5362 goto wait_other_side;
5363 }
5364 }
5365
5366 if (txn->rsp.msg_state == HTTP_MSG_CLOSED) {
5367 http_msg_closed:
5368 /* drop any pending data */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5369 channel_truncate(chn);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5370 channel_auto_close(chn);
5371 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5372 goto wait_other_side;
5373 }
5374
5375 wait_other_side:
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]5376 /* We force the response to leave immediately if we're waiting for the
5377 * other side, since there is no pending shutdown to push it out.
5378 */
5379 if (!channel_is_empty(chn))
5380 chn->flags |= CF_SEND_DONTWAIT;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5381 return txn->rsp.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5382}
5383
5384
5385/* Resync the request and response state machines. Return 1 if either state
5386 * changes.
5387 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5388int http_resync_states(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5389{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5390 struct http_txn *txn = s->txn;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5391 int old_req_state = txn->req.msg_state;
5392 int old_res_state = txn->rsp.msg_state;
5393
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5394 http_sync_req_state(s);
5395 while (1) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5396 if (!http_sync_res_state(s))
5397 break;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5398 if (!http_sync_req_state(s))
5399 break;
5400 }
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]5401
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5402 /* OK, both state machines agree on a compatible state.
5403 * There are a few cases we're interested in :
5404 * - HTTP_MSG_TUNNEL on either means we have to disable both analysers
5405 * - HTTP_MSG_CLOSED on both sides means we've reached the end in both
5406 * directions, so let's simply disable both analysers.
5407 * - HTTP_MSG_CLOSED on the response only means we must abort the
5408 * request.
5409 * - HTTP_MSG_CLOSED on the request and HTTP_MSG_DONE on the response
5410 * with server-close mode means we've completed one request and we
5411 * must re-initialize the server connection.
5412 */
5413
5414 if (txn->req.msg_state == HTTP_MSG_TUNNEL ||
5415 txn->rsp.msg_state == HTTP_MSG_TUNNEL ||
5416 (txn->req.msg_state == HTTP_MSG_CLOSED &&
5417 txn->rsp.msg_state == HTTP_MSG_CLOSED)) {
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5418 s->req.analysers &= AN_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5419 channel_auto_close(&s->req);
5420 channel_auto_read(&s->req);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5421 s->res.analysers &= AN_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5422 channel_auto_close(&s->res);
5423 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5424 }
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]5425 else if ((txn->req.msg_state >= HTTP_MSG_DONE &&
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5426 (txn->rsp.msg_state == HTTP_MSG_CLOSED || (s->res.flags & CF_SHUTW))) ||
Willy Tarreau2fa144c2010-01-04 23:13:26 +0100[diff] [blame]5427 txn->rsp.msg_state == HTTP_MSG_ERROR ||
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]5428 txn->req.msg_state == HTTP_MSG_ERROR) {
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5429 s->res.analysers &= AN_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5430 channel_auto_close(&s->res);
5431 channel_auto_read(&s->res);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5432 s->req.analysers &= AN_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5433 channel_abort(&s->req);
5434 channel_auto_close(&s->req);
5435 channel_auto_read(&s->req);
5436 channel_truncate(&s->req);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5437 }
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5438 else if ((txn->req.msg_state == HTTP_MSG_DONE ||
5439 txn->req.msg_state == HTTP_MSG_CLOSED) &&
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5440 txn->rsp.msg_state == HTTP_MSG_DONE &&
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5441 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
5442 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
5443 /* server-close/keep-alive: terminate this transaction,
5444 * possibly killing the server connection and reinitialize
5445 * a fresh-new transaction.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5446 */
5447 http_end_txn_clean_session(s);
5448 }
5449
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5450 return txn->req.msg_state != old_req_state ||
5451 txn->rsp.msg_state != old_res_state;
5452}
5453
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5454/* This function is an analyser which forwards request body (including chunk
5455 * sizes if any). It is called as soon as we must forward, even if we forward
5456 * zero byte. The only situation where it must not be called is when we're in
5457 * tunnel mode and we want to forward till the close. It's used both to forward
5458 * remaining data and to resync after end of body. It expects the msg_state to
5459 * 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]5460 * 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]5461 * When in MSG_DATA or MSG_TRAILERS, it will automatically forward chunk_len
Willy Tarreauc24715e2014-04-17 15:21:20 +0200[diff] [blame]5462 * bytes of pending data + the headers if not already done.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5463 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5464int http_request_forward_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5465{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5466 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5467 struct http_txn *txn = s->txn;
5468 struct http_msg *msg = &s->txn->req;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5469 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5470
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5471 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
5472 return 0;
5473
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5474 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]5475 ((req->flags & CF_SHUTW) && (req->to_forward || req->buf->o))) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]5476 /* Output closed while we were sending data. We must abort and
5477 * wake the other side up.
5478 */
5479 msg->msg_state = HTTP_MSG_ERROR;
5480 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]5481 return 1;
5482 }
5483
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5484 /* Note that we don't have to send 100-continue back because we don't
5485 * need the data to complete our job, and it's up to the server to
5486 * decide whether to return 100, 417 or anything else in return of
5487 * an "Expect: 100-continue" header.
5488 */
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5489 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5490 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
5491 ? HTTP_MSG_CHUNK_SIZE
5492 : HTTP_MSG_DATA);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5493
5494 /* TODO/filters: when http-buffer-request option is set or if a
5495 * rule on url_param exists, the first chunk size could be
5496 * already parsed. In that case, msg->next is after the chunk
5497 * size (including the CRLF after the size). So this case should
5498 * be handled to */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5499 }
5500
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]5501 /* Some post-connect processing might want us to refrain from starting to
5502 * forward data. Currently, the only reason for this is "balance url_param"
5503 * whichs need to parse/process the request after we've enabled forwarding.
5504 */
5505 if (unlikely(msg->flags & HTTP_MSGF_WAIT_CONN)) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5506 if (!(s->res.flags & CF_READ_ATTACHED)) {
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]5507 channel_auto_connect(req);
Willy Tarreau644c1012014-04-30 18:11:11 +0200[diff] [blame]5508 req->flags |= CF_WAKE_CONNECT;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5509 goto missing_data_or_waiting;
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]5510 }
5511 msg->flags &= ~HTTP_MSGF_WAIT_CONN;
5512 }
5513
Willy Tarreau80a92c02014-03-12 10:41:13 +0100[diff] [blame]5514 /* in most states, we should abort in case of early close */
5515 channel_auto_close(req);
5516
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]5517 if (req->to_forward) {
5518 /* We can't process the buffer's contents yet */
5519 req->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5520 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]5521 }
5522
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5523 if (msg->msg_state < HTTP_MSG_DONE) {
5524 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
5525 ? http_msg_forward_chunked_body(s, msg)
5526 : http_msg_forward_body(s, msg));
5527 if (!ret)
5528 goto missing_data_or_waiting;
5529 if (ret < 0)
5530 goto return_bad_req;
5531 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5532
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5533 /* other states, DONE...TUNNEL */
5534 /* we don't want to forward closes on DONE except in tunnel mode. */
5535 if ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
5536 channel_dont_close(req);
Willy Tarreau5c54c712010-07-17 08:02:58 +0200[diff] [blame]5537
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5538 ret = msg->msg_state;
5539 if (http_resync_states(s)) {
5540 /* some state changes occurred, maybe the analyser
5541 * was disabled too. */
5542 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
5543 if (req->flags & CF_SHUTW) {
5544 /* request errors are most likely due to the
5545 * server aborting the transfer. */
5546 goto aborted_xfer;
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]5547 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5548 if (msg->err_pos >= 0)
5549 http_capture_bad_message(&sess->fe->invalid_req, s, msg, ret, s->be);
5550 goto return_bad_req;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5551 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5552 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5553 }
5554
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5555 /* If "option abortonclose" is set on the backend, we want to monitor
5556 * the client's connection and forward any shutdown notification to the
5557 * server, which will decide whether to close or to go on processing the
5558 * request. We only do that in tunnel mode, and not in other modes since
5559 * it can be abused to exhaust source ports. */
5560 if (s->be->options & PR_O_ABRT_CLOSE) {
5561 channel_auto_read(req);
5562 if ((req->flags & (CF_SHUTR|CF_READ_NULL)) &&
5563 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN))
5564 s->si[1].flags |= SI_FL_NOLINGER;
5565 channel_auto_close(req);
5566 }
5567 else if (s->txn->meth == HTTP_METH_POST) {
5568 /* POST requests may require to read extra CRLF sent by broken
5569 * browsers and which could cause an RST to be sent upon close
5570 * on some systems (eg: Linux). */
5571 channel_auto_read(req);
5572 }
5573 return 0;
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]5574
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5575 missing_data_or_waiting:
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5576 /* stop waiting for data if the input is closed before the end */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5577 if (req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5578 if (!(s->flags & SF_ERR_MASK))
5579 s->flags |= SF_ERR_CLICL;
5580 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5581 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5582 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5583 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5584 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5585 }
5586
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5587 sess->fe->fe_counters.cli_aborts++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5588 s->be->be_counters.cli_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5589 if (objt_server(s->target))
5590 objt_server(s->target)->counters.cli_aborts++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5591
5592 goto return_bad_req_stats_ok;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]5593 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5594
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5595 /* waiting for the last bits to leave the buffer */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5596 if (req->flags & CF_SHUTW)
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5597 goto aborted_xfer;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5598
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]5599 /* When TE: chunked is used, we need to get there again to parse remaining
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5600 * 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]5601 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5602 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5603 channel_dont_close(req);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]5604
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5605 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5606 * 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]5607 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]5608 * modes are already handled by the stream sock layer. We must not do
5609 * this in content-length mode because it could present the MSG_MORE
5610 * flag with the last block of forwarded data, which would cause an
5611 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5612 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5613 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5614 req->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5615
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5616 return 0;
5617
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5618 return_bad_req: /* let's centralize all bad requests */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5619 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5620 if (sess->listener->counters)
5621 sess->listener->counters->failed_req++;
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]5622
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5623 return_bad_req_stats_ok:
5624 txn->req.msg_state = HTTP_MSG_ERROR;
5625 if (txn->status) {
5626 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5627 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5628 } else {
5629 txn->status = 400;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5630 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_400));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5631 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5632 req->analysers &= AN_FLT_END;
5633 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]5634
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5635 if (!(s->flags & SF_ERR_MASK))
5636 s->flags |= SF_ERR_PRXCOND;
5637 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5638 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5639 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5640 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5641 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5642 }
5643 return 0;
5644
5645 aborted_xfer:
5646 txn->req.msg_state = HTTP_MSG_ERROR;
5647 if (txn->status) {
5648 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5649 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5650 } else {
5651 txn->status = 502;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5652 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_502));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5653 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5654 req->analysers &= AN_FLT_END;
5655 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]5656
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5657 sess->fe->fe_counters.srv_aborts++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5658 s->be->be_counters.srv_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5659 if (objt_server(s->target))
5660 objt_server(s->target)->counters.srv_aborts++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5661
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5662 if (!(s->flags & SF_ERR_MASK))
5663 s->flags |= SF_ERR_SRVCL;
5664 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5665 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5666 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5667 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5668 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5669 }
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5670 return 0;
5671}
5672
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5673/* This stream analyser waits for a complete HTTP response. It returns 1 if the
5674 * processing can continue on next analysers, or zero if it either needs more
5675 * data or wants to immediately abort the response (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5676 * 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]5677 * when it has nothing left to do, and may remove any analyser when it wants to
5678 * abort.
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5679 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5680int http_wait_for_response(struct stream *s, struct channel *rep, int an_bit)
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5681{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5682 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5683 struct http_txn *txn = s->txn;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5684 struct http_msg *msg = &txn->rsp;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5685 struct hdr_ctx ctx;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5686 int use_close_only;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5687 int cur_idx;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5688 int n;
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]5689
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5690 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]5691 now_ms, __FUNCTION__,
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5692 s,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5693 rep,
5694 rep->rex, rep->wex,
5695 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5696 rep->buf->i,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5697 rep->analysers);
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200[diff] [blame]5698
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5699 /*
5700 * Now parse the partial (or complete) lines.
5701 * We will check the response syntax, and also join multi-line
5702 * headers. An index of all the lines will be elaborated while
5703 * parsing.
5704 *
5705 * For the parsing, we use a 28 states FSM.
5706 *
5707 * Here is the information we currently have :
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5708 * rep->buf->p = beginning of response
5709 * rep->buf->p + msg->eoh = end of processed headers / start of current one
5710 * rep->buf->p + rep->buf->i = end of input data
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]5711 * msg->eol = end of current header or line (LF or CRLF)
5712 * msg->next = first non-visited byte
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5713 */
5714
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5715 next_one:
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5716 /* There's a protected area at the end of the buffer for rewriting
5717 * purposes. We don't want to start to parse the request if the
5718 * protected area is affected, because we may have to move processed
5719 * data later, which is much more complicated.
5720 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5721 if (buffer_not_empty(rep->buf) && msg->msg_state < HTTP_MSG_ERROR) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]5722 if (unlikely(!channel_is_rewritable(rep))) {
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5723 /* some data has still not left the buffer, wake us once that's done */
5724 if (rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
5725 goto abort_response;
5726 channel_dont_close(rep);
5727 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]5728 rep->flags |= CF_WAKE_WRITE;
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5729 return 0;
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5730 }
5731
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5732 if (unlikely(bi_end(rep->buf) < b_ptr(rep->buf, msg->next) ||
5733 bi_end(rep->buf) > rep->buf->data + rep->buf->size - global.tune.maxrewrite))
5734 buffer_slow_realign(rep->buf);
5735
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5736 if (likely(msg->next < rep->buf->i))
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]5737 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5738 }
5739
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5740 /* 1: we might have to print this header in debug mode */
5741 if (unlikely((global.mode & MODE_DEBUG) &&
5742 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]5743 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5744 char *eol, *sol;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5745
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5746 sol = rep->buf->p;
5747 eol = sol + (msg->sl.st.l ? msg->sl.st.l : rep->buf->i);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5748 debug_hdr("srvrep", s, sol, eol);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5749
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5750 sol += hdr_idx_first_pos(&txn->hdr_idx);
5751 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5752
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5753 while (cur_idx) {
5754 eol = sol + txn->hdr_idx.v[cur_idx].len;
5755 debug_hdr("srvhdr", s, sol, eol);
5756 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
5757 cur_idx = txn->hdr_idx.v[cur_idx].next;
5758 }
5759 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5760
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5761 /*
5762 * Now we quickly check if we have found a full valid response.
5763 * If not so, we check the FD and buffer states before leaving.
5764 * A full response is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5765 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5766 * responses are checked first.
5767 *
5768 * Depending on whether the client is still there or not, we
5769 * may send an error response back or not. Note that normally
5770 * we should only check for HTTP status there, and check I/O
5771 * errors somewhere else.
5772 */
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5773
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5774 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5775 /* Invalid response */
5776 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
5777 /* we detected a parsing error. We want to archive this response
5778 * in the dedicated proxy area for later troubleshooting.
5779 */
5780 hdr_response_bad:
5781 if (msg->msg_state == HTTP_MSG_ERROR || msg->err_pos >= 0)
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5782 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]5783
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5784 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5785 if (objt_server(s->target)) {
5786 objt_server(s->target)->counters.failed_resp++;
5787 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5788 }
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]5789 abort_response:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5790 channel_auto_close(rep);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5791 rep->analysers &= AN_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5792 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5793 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5794 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5795 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_502));
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5796
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5797 if (!(s->flags & SF_ERR_MASK))
5798 s->flags |= SF_ERR_PRXCOND;
5799 if (!(s->flags & SF_FINST_MASK))
5800 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5801
5802 return 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5803 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5804
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5805 /* too large response does not fit in buffer. */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5806 else if (buffer_full(rep->buf, global.tune.maxrewrite)) {
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]5807 if (msg->err_pos < 0)
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5808 msg->err_pos = rep->buf->i;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5809 goto hdr_response_bad;
5810 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5811
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5812 /* read error */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5813 else if (rep->flags & CF_READ_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5814 if (msg->err_pos >= 0)
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5815 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]5816 else if (txn->flags & TX_NOT_FIRST)
5817 goto abort_keep_alive;
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5818
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5819 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5820 if (objt_server(s->target)) {
5821 objt_server(s->target)->counters.failed_resp++;
5822 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_ERROR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5823 }
Willy Tarreau461f6622008-08-15 23:43:19 +0200[diff] [blame]5824
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5825 channel_auto_close(rep);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5826 rep->analysers &= AN_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5827 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5828 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5829 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5830 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_502));
Willy Tarreau816b9792009-09-15 21:25:21 +0200[diff] [blame]5831
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5832 if (!(s->flags & SF_ERR_MASK))
5833 s->flags |= SF_ERR_SRVCL;
5834 if (!(s->flags & SF_FINST_MASK))
5835 s->flags |= SF_FINST_H;
Willy Tarreaucebf57e2008-08-15 18:16:37 +0200[diff] [blame]5836 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5837 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5838
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +0200[diff] [blame]5839 /* read timeout : return a 504 to the client. */
5840 else if (rep->flags & CF_READ_TIMEOUT) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5841 if (msg->err_pos >= 0)
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5842 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]5843
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5844 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5845 if (objt_server(s->target)) {
5846 objt_server(s->target)->counters.failed_resp++;
5847 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_TIMEOUT);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5848 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5849
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5850 channel_auto_close(rep);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5851 rep->analysers &= AN_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5852 txn->status = 504;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5853 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5854 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5855 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_504));
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5856
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5857 if (!(s->flags & SF_ERR_MASK))
5858 s->flags |= SF_ERR_SRVTO;
5859 if (!(s->flags & SF_FINST_MASK))
5860 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5861 return 0;
5862 }
Willy Tarreaua7c52762008-08-16 18:40:18 +0200[diff] [blame]5863
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5864 /* client abort with an abortonclose */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5865 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]5866 sess->fe->fe_counters.cli_aborts++;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5867 s->be->be_counters.cli_aborts++;
5868 if (objt_server(s->target))
5869 objt_server(s->target)->counters.cli_aborts++;
5870
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5871 rep->analysers &= AN_FLT_END;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5872 channel_auto_close(rep);
5873
5874 txn->status = 400;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5875 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5876 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_400));
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5877
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5878 if (!(s->flags & SF_ERR_MASK))
5879 s->flags |= SF_ERR_CLICL;
5880 if (!(s->flags & SF_FINST_MASK))
5881 s->flags |= SF_FINST_H;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5882
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5883 /* process_stream() will take care of the error */
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5884 return 0;
5885 }
5886
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5887 /* close from server, capture the response if the server has started to respond */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5888 else if (rep->flags & CF_SHUTR) {
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5889 if (msg->msg_state >= HTTP_MSG_RPVER || msg->err_pos >= 0)
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5890 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]5891 else if (txn->flags & TX_NOT_FIRST)
5892 goto abort_keep_alive;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5893
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5894 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5895 if (objt_server(s->target)) {
5896 objt_server(s->target)->counters.failed_resp++;
5897 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_BROKEN_PIPE);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5898 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5899
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5900 channel_auto_close(rep);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5901 rep->analysers &= AN_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5902 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5903 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5904 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5905 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_502));
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5906
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5907 if (!(s->flags & SF_ERR_MASK))
5908 s->flags |= SF_ERR_SRVCL;
5909 if (!(s->flags & SF_FINST_MASK))
5910 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5911 return 0;
5912 }
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5913
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5914 /* write error to client (we don't send any message then) */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5915 else if (rep->flags & CF_WRITE_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5916 if (msg->err_pos >= 0)
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5917 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]5918 else if (txn->flags & TX_NOT_FIRST)
5919 goto abort_keep_alive;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5920
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5921 s->be->be_counters.failed_resp++;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5922 rep->analysers &= AN_FLT_END;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5923 channel_auto_close(rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5924
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5925 if (!(s->flags & SF_ERR_MASK))
5926 s->flags |= SF_ERR_CLICL;
5927 if (!(s->flags & SF_FINST_MASK))
5928 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5929
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5930 /* process_stream() will take care of the error */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5931 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5932 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5933
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5934 channel_dont_close(rep);
Willy Tarreau3f3997e2013-12-15 15:21:32 +0100[diff] [blame]5935 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5936 return 0;
5937 }
5938
5939 /* More interesting part now : we know that we have a complete
5940 * response which at least looks like HTTP. We have an indicator
5941 * of each header's length, so we can parse them quickly.
5942 */
5943
5944 if (unlikely(msg->err_pos >= 0))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5945 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]5946
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5947 /*
5948 * 1: get the status code
5949 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5950 n = rep->buf->p[msg->sl.st.c] - '0';
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5951 if (n < 1 || n > 5)
5952 n = 0;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5953 /* when the client triggers a 4xx from the server, it's most often due
5954 * to a missing object or permission. These events should be tracked
5955 * because if they happen often, it may indicate a brute force or a
5956 * vulnerability scan.
5957 */
5958 if (n == 4)
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5959 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5960
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5961 if (objt_server(s->target))
5962 objt_server(s->target)->counters.p.http.rsp[n]++;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5963
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]5964 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
5965 * exactly one digit "." one digit. This check may be disabled using
5966 * option accept-invalid-http-response.
5967 */
5968 if (!(s->be->options2 & PR_O2_RSPBUG_OK)) {
5969 if (msg->sl.st.v_l != 8) {
5970 msg->err_pos = 0;
5971 goto hdr_response_bad;
5972 }
5973
5974 if (rep->buf->p[4] != '/' ||
5975 !isdigit((unsigned char)rep->buf->p[5]) ||
5976 rep->buf->p[6] != '.' ||
5977 !isdigit((unsigned char)rep->buf->p[7])) {
5978 msg->err_pos = 4;
5979 goto hdr_response_bad;
5980 }
5981 }
5982
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5983 /* check if the response is HTTP/1.1 or above */
5984 if ((msg->sl.st.v_l == 8) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5985 ((rep->buf->p[5] > '1') ||
5986 ((rep->buf->p[5] == '1') && (rep->buf->p[7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5987 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5988
5989 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]5990 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]5991
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5992 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5993 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5994
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5995 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]5996
Willy Tarreau39650402010-03-15 19:44:39 +0100[diff] [blame]5997 /* Adjust server's health based on status code. Note: status codes 501
5998 * and 505 are triggered on demand by client request, so we must not
5999 * count them as server failures.
6000 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6001 if (objt_server(s->target)) {
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]6002 if (txn->status >= 100 && (txn->status < 500 || txn->status == 501 || txn->status == 505))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6003 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_OK);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]6004 else
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6005 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_STS);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]6006 }
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]6007
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6008 /*
6009 * 2: check for cacheability.
6010 */
6011
6012 switch (txn->status) {
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]6013 case 100:
6014 /*
6015 * We may be facing a 100-continue response, in which case this
6016 * is not the right response, and we're waiting for the next one.
6017 * Let's allow this response to go to the client and wait for the
6018 * next one.
6019 */
6020 hdr_idx_init(&txn->hdr_idx);
6021 msg->next -= channel_forward(rep, msg->next);
6022 msg->msg_state = HTTP_MSG_RPBEFORE;
6023 txn->status = 0;
6024 s->logs.t_data = -1; /* was not a response yet */
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]6025 FLT_STRM_CB(s, flt_http_reset(s, msg));
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]6026 goto next_one;
6027
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6028 case 200:
6029 case 203:
6030 case 206:
6031 case 300:
6032 case 301:
6033 case 410:
6034 /* RFC2616 @13.4:
6035 * "A response received with a status code of
6036 * 200, 203, 206, 300, 301 or 410 MAY be stored
6037 * by a cache (...) unless a cache-control
6038 * directive prohibits caching."
6039 *
6040 * RFC2616 @9.5: POST method :
6041 * "Responses to this method are not cacheable,
6042 * unless the response includes appropriate
6043 * Cache-Control or Expires header fields."
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6044 */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6045 if (likely(txn->meth != HTTP_METH_POST) &&
Willy Tarreau67402132012-05-31 20:40:20 +0200[diff] [blame]6046 ((s->be->options & PR_O_CHK_CACHE) || (s->be->ck_opts & PR_CK_NOC)))
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6047 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
6048 break;
6049 default:
6050 break;
6051 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6052
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6053 /*
6054 * 3: we may need to capture headers
6055 */
6056 s->logs.logwait &= ~LW_RESP;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]6057 if (unlikely((s->logs.logwait & LW_RSPHDR) && s->res_cap))
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6058 capture_headers(rep->buf->p, &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]6059 s->res_cap, sess->fe->rsp_cap);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6060
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6061 /* 4: determine the transfer-length according to RFC2616 #4.4, updated
6062 * by RFC7230#3.3.3 :
6063 *
6064 * The length of a message body is determined by one of the following
6065 * (in order of precedence):
6066 *
6067 * 1. Any response to a HEAD request and any response with a 1xx
6068 * (Informational), 204 (No Content), or 304 (Not Modified) status
6069 * code is always terminated by the first empty line after the
6070 * header fields, regardless of the header fields present in the
6071 * message, and thus cannot contain a message body.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6072 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6073 * 2. Any 2xx (Successful) response to a CONNECT request implies that
6074 * the connection will become a tunnel immediately after the empty
6075 * line that concludes the header fields. A client MUST ignore any
6076 * Content-Length or Transfer-Encoding header fields received in
6077 * such a message.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6078 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6079 * 3. If a Transfer-Encoding header field is present and the chunked
6080 * transfer coding (Section 4.1) is the final encoding, the message
6081 * body length is determined by reading and decoding the chunked
6082 * data until the transfer coding indicates the data is complete.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6083 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6084 * If a Transfer-Encoding header field is present in a response and
6085 * the chunked transfer coding is not the final encoding, the
6086 * message body length is determined by reading the connection until
6087 * it is closed by the server. If a Transfer-Encoding header field
6088 * is present in a request and the chunked transfer coding is not
6089 * the final encoding, the message body length cannot be determined
6090 * reliably; the server MUST respond with the 400 (Bad Request)
6091 * status code and then close the connection.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6092 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6093 * If a message is received with both a Transfer-Encoding and a
6094 * Content-Length header field, the Transfer-Encoding overrides the
6095 * Content-Length. Such a message might indicate an attempt to
6096 * perform request smuggling (Section 9.5) or response splitting
6097 * (Section 9.4) and ought to be handled as an error. A sender MUST
6098 * remove the received Content-Length field prior to forwarding such
6099 * a message downstream.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6100 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6101 * 4. If a message is received without Transfer-Encoding and with
6102 * either multiple Content-Length header fields having differing
6103 * field-values or a single Content-Length header field having an
6104 * invalid value, then the message framing is invalid and the
6105 * recipient MUST treat it as an unrecoverable error. If this is a
6106 * request message, the server MUST respond with a 400 (Bad Request)
6107 * status code and then close the connection. If this is a response
6108 * message received by a proxy, the proxy MUST close the connection
6109 * to the server, discard the received response, and send a 502 (Bad
6110 * Gateway) response to the client. If this is a response message
6111 * received by a user agent, the user agent MUST close the
6112 * connection to the server and discard the received response.
6113 *
6114 * 5. If a valid Content-Length header field is present without
6115 * Transfer-Encoding, its decimal value defines the expected message
6116 * body length in octets. If the sender closes the connection or
6117 * the recipient times out before the indicated number of octets are
6118 * received, the recipient MUST consider the message to be
6119 * incomplete and close the connection.
6120 *
6121 * 6. If this is a request message and none of the above are true, then
6122 * the message body length is zero (no message body is present).
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6123 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6124 * 7. Otherwise, this is a response message without a declared message
6125 * body length, so the message body length is determined by the
6126 * number of octets received prior to the server closing the
6127 * connection.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6128 */
6129
6130 /* Skip parsing if no content length is possible. The response flags
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]6131 * remain 0 as well as the chunk_len, which may or may not mirror
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6132 * the real header value, and we note that we know the response's length.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6133 * FIXME: should we parse anyway and return an error on chunked encoding ?
6134 */
6135 if (txn->meth == HTTP_METH_HEAD ||
6136 (txn->status >= 100 && txn->status < 200) ||
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6137 txn->status == 204 || txn->status == 304) {
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6138 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6139 goto skip_content_length;
6140 }
6141
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6142 use_close_only = 0;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6143 ctx.idx = 0;
Willy Tarreau4979d5c2015-05-01 10:06:30 +0200[diff] [blame]6144 while (http_find_header2("Transfer-Encoding", 17, rep->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6145 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6146 msg->flags |= (HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
6147 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6148 /* bad transfer-encoding (chunked followed by something else) */
6149 use_close_only = 1;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6150 msg->flags &= ~(HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6151 break;
6152 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6153 }
6154
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]6155 /* Chunked responses must have their content-length removed */
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6156 ctx.idx = 0;
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]6157 if (use_close_only || (msg->flags & HTTP_MSGF_TE_CHNK)) {
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]6158 while (http_find_header2("Content-Length", 14, rep->buf->p, &txn->hdr_idx, &ctx))
6159 http_remove_header2(msg, &txn->hdr_idx, &ctx);
6160 }
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]6161 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]6162 signed long long cl;
6163
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6164 if (!ctx.vlen) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6165 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6166 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6167 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6168
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6169 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6170 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6171 goto hdr_response_bad; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6172 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6173
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6174 if (cl < 0) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6175 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6176 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6177 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6178
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6179 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6180 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6181 goto hdr_response_bad; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6182 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6183
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6184 msg->flags |= HTTP_MSGF_CNT_LEN | HTTP_MSGF_XFER_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]6185 msg->body_len = msg->chunk_len = cl;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6186 }
6187
6188skip_content_length:
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6189 /* Now we have to check if we need to modify the Connection header.
6190 * This is more difficult on the response than it is on the request,
6191 * because we can have two different HTTP versions and we don't know
6192 * how the client will interprete a response. For instance, let's say
6193 * that the client sends a keep-alive request in HTTP/1.0 and gets an
6194 * HTTP/1.1 response without any header. Maybe it will bound itself to
6195 * HTTP/1.0 because it only knows about it, and will consider the lack
6196 * of header as a close, or maybe it knows HTTP/1.1 and can consider
6197 * the lack of header as a keep-alive. Thus we will use two flags
6198 * indicating how a request MAY be understood by the client. In case
6199 * of multiple possibilities, we'll fix the header to be explicit. If
6200 * ambiguous cases such as both close and keepalive are seen, then we
6201 * will fall back to explicit close. Note that we won't take risks with
6202 * HTTP/1.0 clients which may not necessarily understand keep-alive.
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6203 * See doc/internals/connection-header.txt for the complete matrix.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6204 */
6205
Willy Tarreaudc008c52010-02-01 16:20:08 +0100[diff] [blame]6206 if (unlikely((txn->meth == HTTP_METH_CONNECT && txn->status == 200) ||
6207 txn->status == 101)) {
6208 /* Either we've established an explicit tunnel, or we're
6209 * switching the protocol. In both cases, we're very unlikely
Willy Tarreau5843d1a2010-02-01 15:13:32 +0100[diff] [blame]6210 * to understand the next protocols. We have to switch to tunnel
6211 * mode, so that we transfer the request and responses then let
6212 * this protocol pass unmodified. When we later implement specific
6213 * parsers for such protocols, we'll want to check the Upgrade
Willy Tarreaudc008c52010-02-01 16:20:08 +0100[diff] [blame]6214 * header which contains information about that protocol for
6215 * responses with status 101 (eg: see RFC2817 about TLS).
Willy Tarreau5843d1a2010-02-01 15:13:32 +0100[diff] [blame]6216 */
6217 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_TUN;
6218 }
Willy Tarreaudc008c52010-02-01 16:20:08 +0100[diff] [blame]6219 else if ((txn->status >= 200) && !(txn->flags & TX_HDR_CONN_PRS) &&
6220 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN ||
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 Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6223 int to_del = 0;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6224
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]6225 /* this situation happens when combining pretend-keepalive with httpclose. */
6226 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6227 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6228 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]6229 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
6230
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6231 /* on unknown transfer length, we must close */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6232 if (!(msg->flags & HTTP_MSGF_XFER_LEN) &&
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6233 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
6234 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6235
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6236 /* now adjust header transformations depending on current state */
6237 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN ||
6238 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
6239 to_del |= 2; /* remove "keep-alive" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6240 if (!(msg->flags & HTTP_MSGF_VER_11))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6241 to_del |= 1; /* remove "close" for HTTP/1.0 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6242 }
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6243 else { /* SCL / KAL */
6244 to_del |= 1; /* remove "close" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6245 if (txn->req.flags & msg->flags & HTTP_MSGF_VER_11)
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6246 to_del |= 2; /* remove "keep-alive" on pure 1.1 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6247 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6248
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6249 /* Parse and remove some headers from the connection header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]6250 http_parse_connection_header(txn, msg, to_del);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6251
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6252 /* Some keep-alive responses are converted to Server-close if
6253 * the server wants to close.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6254 */
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6255 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL) {
6256 if ((txn->flags & TX_HDR_CONN_CLO) ||
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6257 (!(txn->flags & TX_HDR_CONN_KAL) && !(msg->flags & HTTP_MSGF_VER_11)))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6258 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_SCL;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]6259 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6260 }
6261
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]6262 /* we want to have the response time before we start processing it */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6263 s->logs.t_data = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]6264
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6265 /* end of job, return OK */
6266 rep->analysers &= ~an_bit;
6267 rep->analyse_exp = TICK_ETERNITY;
6268 channel_auto_close(rep);
6269 return 1;
6270
6271 abort_keep_alive:
6272 /* A keep-alive request to the server failed on a network error.
6273 * The client is required to retry. We need to close without returning
6274 * any other information so that the client retries.
6275 */
6276 txn->status = 0;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6277 rep->analysers &= AN_FLT_END;
6278 s->req.analysers &= AN_FLT_END;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6279 channel_auto_close(rep);
6280 s->logs.logwait = 0;
6281 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6282 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]6283 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6284 http_reply_and_close(s, txn->status, NULL);
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6285 return 0;
6286}
6287
6288/* This function performs all the processing enabled for the current response.
6289 * It normally returns 1 unless it wants to break. It relies on buffers flags,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6290 * and updates s->res.analysers. It might make sense to explode it into several
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6291 * other functions. It works like process_request (see indications above).
6292 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6293int 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]6294{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]6295 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6296 struct http_txn *txn = s->txn;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6297 struct http_msg *msg = &txn->rsp;
6298 struct proxy *cur_proxy;
6299 struct cond_wordlist *wl;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]6300 enum rule_result ret = HTTP_RULE_RES_CONT;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6301
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6302 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]6303 now_ms, __FUNCTION__,
6304 s,
6305 rep,
6306 rep->rex, rep->wex,
6307 rep->flags,
6308 rep->buf->i,
6309 rep->analysers);
6310
6311 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) /* we need more data */
6312 return 0;
6313
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]6314 /* The stats applet needs to adjust the Connection header but we don't
6315 * apply any filter there.
6316 */
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]6317 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
6318 rep->analysers &= ~an_bit;
6319 rep->analyse_exp = TICK_ETERNITY;
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]6320 goto skip_filters;
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]6321 }
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]6322
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6323 /*
6324 * We will have to evaluate the filters.
6325 * As opposed to version 1.2, now they will be evaluated in the
6326 * filters order and not in the header order. This means that
6327 * each filter has to be validated among all headers.
6328 *
6329 * Filters are tried with ->be first, then with ->fe if it is
6330 * different from ->be.
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]6331 *
6332 * Maybe we are in resume condiion. In this case I choose the
6333 * "struct proxy" which contains the rule list matching the resume
6334 * pointer. If none of theses "struct proxy" match, I initialise
6335 * the process with the first one.
6336 *
6337 * In fact, I check only correspondance betwwen the current list
6338 * pointer and the ->fe rule list. If it doesn't match, I initialize
6339 * the loop with the ->be.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6340 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6341 if (s->current_rule_list == &sess->fe->http_res_rules)
6342 cur_proxy = sess->fe;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]6343 else
6344 cur_proxy = s->be;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6345 while (1) {
6346 struct proxy *rule_set = cur_proxy;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6347
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6348 /* evaluate http-response rules */
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]6349 if (ret == HTTP_RULE_RES_CONT) {
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]6350 ret = http_res_get_intercept_rule(cur_proxy, &cur_proxy->http_res_rules, s);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]6351
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]6352 if (ret == HTTP_RULE_RES_BADREQ)
6353 goto return_srv_prx_502;
6354
6355 if (ret == HTTP_RULE_RES_DONE) {
6356 rep->analysers &= ~an_bit;
6357 rep->analyse_exp = TICK_ETERNITY;
6358 return 1;
6359 }
6360 }
6361
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]6362 /* we need to be called again. */
6363 if (ret == HTTP_RULE_RES_YIELD) {
6364 channel_dont_close(rep);
6365 return 0;
6366 }
6367
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6368 /* try headers filters */
6369 if (rule_set->rsp_exp != NULL) {
6370 if (apply_filters_to_response(s, rep, rule_set) < 0) {
6371 return_bad_resp:
6372 if (objt_server(s->target)) {
6373 objt_server(s->target)->counters.failed_resp++;
6374 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_RSP);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]6375 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6376 s->be->be_counters.failed_resp++;
6377 return_srv_prx_502:
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6378 rep->analysers &= AN_FLT_END;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6379 txn->status = 502;
6380 s->logs.t_data = -1; /* was not a valid response */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]6381 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]6382 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6383 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_502));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6384 if (!(s->flags & SF_ERR_MASK))
6385 s->flags |= SF_ERR_PRXCOND;
6386 if (!(s->flags & SF_FINST_MASK))
6387 s->flags |= SF_FINST_H;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6388 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6389 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6390 }
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]6391
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6392 /* has the response been denied ? */
6393 if (txn->flags & TX_SVDENY) {
6394 if (objt_server(s->target))
6395 objt_server(s->target)->counters.failed_secu++;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]6396
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6397 s->be->be_counters.denied_resp++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6398 sess->fe->fe_counters.denied_resp++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]6399 if (sess->listener->counters)
6400 sess->listener->counters->denied_resp++;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6401
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6402 goto return_srv_prx_502;
6403 }
Willy Tarreau0bbc3cf2006-10-15 14:26:02 +0200[diff] [blame]6404
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6405 /* add response headers from the rule sets in the same order */
6406 list_for_each_entry(wl, &rule_set->rsp_add, list) {
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]6407 if (txn->status < 200 && txn->status != 101)
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6408 break;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6409 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6410 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]6411 ret = acl_pass(ret);
6412 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
6413 ret = !ret;
6414 if (!ret)
6415 continue;
6416 }
6417 if (unlikely(http_header_add_tail(&txn->rsp, &txn->hdr_idx, wl->s) < 0))
6418 goto return_bad_resp;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6419 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6420
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6421 /* check whether we're already working on the frontend */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6422 if (cur_proxy == sess->fe)
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6423 break;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6424 cur_proxy = sess->fe;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6425 }
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]6426
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]6427 /* After this point, this anayzer can't return yield, so we can
6428 * remove the bit corresponding to this analyzer from the list.
6429 *
6430 * Note that the intermediate returns and goto found previously
6431 * reset the analyzers.
6432 */
6433 rep->analysers &= ~an_bit;
6434 rep->analyse_exp = TICK_ETERNITY;
6435
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6436 /* OK that's all we can do for 1xx responses */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]6437 if (unlikely(txn->status < 200 && txn->status != 101))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6438 goto skip_header_mangling;
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]6439
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6440 /*
6441 * Now check for a server cookie.
6442 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]6443 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]6444 manage_server_side_cookies(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 * Check for cache-control or pragma headers if required.
6448 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]6449 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]6450 check_response_for_cacheability(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6451
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6452 /*
6453 * Add server cookie in the response if needed
6454 */
6455 if (objt_server(s->target) && (s->be->ck_opts & PR_CK_INS) &&
6456 !((txn->flags & TX_SCK_FOUND) && (s->be->ck_opts & PR_CK_PSV)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6457 (!(s->flags & SF_DIRECT) ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6458 ((s->be->cookie_maxidle || txn->cookie_last_date) &&
6459 (!txn->cookie_last_date || (txn->cookie_last_date - date.tv_sec) < 0)) ||
6460 (s->be->cookie_maxlife && !txn->cookie_first_date) || // set the first_date
6461 (!s->be->cookie_maxlife && txn->cookie_first_date)) && // remove the first_date
6462 (!(s->be->ck_opts & PR_CK_POST) || (txn->meth == HTTP_METH_POST)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6463 !(s->flags & SF_IGNORE_PRST)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6464 /* the server is known, it's not the one the client requested, or the
6465 * cookie's last seen date needs to be refreshed. We have to
6466 * insert a set-cookie here, except if we want to insert only on POST
6467 * requests and this one isn't. Note that servers which don't have cookies
6468 * (eg: some backup servers) will return a full cookie removal request.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6469 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6470 if (!objt_server(s->target)->cookie) {
6471 chunk_printf(&trash,
6472 "Set-Cookie: %s=; Expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/",
6473 s->be->cookie_name);
6474 }
6475 else {
6476 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]6477
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6478 if (s->be->cookie_maxidle || s->be->cookie_maxlife) {
6479 /* emit last_date, which is mandatory */
6480 trash.str[trash.len++] = COOKIE_DELIM_DATE;
6481 s30tob64((date.tv_sec+3) >> 2, trash.str + trash.len);
6482 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6483
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6484 if (s->be->cookie_maxlife) {
6485 /* emit first_date, which is either the original one or
6486 * the current date.
6487 */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6488 trash.str[trash.len++] = COOKIE_DELIM_DATE;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6489 s30tob64(txn->cookie_first_date ?
6490 txn->cookie_first_date >> 2 :
6491 (date.tv_sec+3) >> 2, trash.str + trash.len);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6492 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6493 }
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6494 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6495 chunk_appendf(&trash, "; path=/");
6496 }
Willy Tarreau4992dd22012-05-31 21:02:17 +0200[diff] [blame]6497
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6498 if (s->be->cookie_domain)
6499 chunk_appendf(&trash, "; domain=%s", s->be->cookie_domain);
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6500
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6501 if (s->be->ck_opts & PR_CK_HTTPONLY)
6502 chunk_appendf(&trash, "; HttpOnly");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6503
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6504 if (s->be->ck_opts & PR_CK_SECURE)
6505 chunk_appendf(&trash, "; Secure");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6506
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6507 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx, trash.str, trash.len) < 0))
6508 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6509
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6510 txn->flags &= ~TX_SCK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6511 if (objt_server(s->target)->cookie && (s->flags & SF_DIRECT))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6512 /* the server did not change, only the date was updated */
6513 txn->flags |= TX_SCK_UPDATED;
6514 else
6515 txn->flags |= TX_SCK_INSERTED;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6516
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6517 /* Here, we will tell an eventual cache on the client side that we don't
6518 * want it to cache this reply because HTTP/1.0 caches also cache cookies !
6519 * Some caches understand the correct form: 'no-cache="set-cookie"', but
6520 * others don't (eg: apache <= 1.3.26). So we use 'private' instead.
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6521 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6522 if ((s->be->ck_opts & PR_CK_NOC) && (txn->flags & TX_CACHEABLE)) {
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6523
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6524 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]6525
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6526 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx,
6527 "Cache-control: private", 22) < 0))
6528 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6529 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6530 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6531
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6532 /*
6533 * Check if result will be cacheable with a cookie.
6534 * We'll block the response if security checks have caught
6535 * nasty things such as a cacheable cookie.
6536 */
6537 if (((txn->flags & (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) ==
6538 (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) &&
6539 (s->be->options & PR_O_CHK_CACHE)) {
6540 /* we're in presence of a cacheable response containing
6541 * a set-cookie header. We'll block it as requested by
6542 * the 'checkcache' option, and send an alert.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6543 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6544 if (objt_server(s->target))
6545 objt_server(s->target)->counters.failed_secu++;
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6546
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6547 s->be->be_counters.denied_resp++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6548 sess->fe->fe_counters.denied_resp++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]6549 if (sess->listener->counters)
6550 sess->listener->counters->denied_resp++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6551
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6552 Alert("Blocking cacheable cookie in response from instance %s, server %s.\n",
6553 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
6554 send_log(s->be, LOG_ALERT,
6555 "Blocking cacheable cookie in response from instance %s, server %s.\n",
6556 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
6557 goto return_srv_prx_502;
6558 }
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]6559
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]6560 skip_filters:
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6561 /*
6562 * Adjust "Connection: close" or "Connection: keep-alive" if needed.
6563 * If an "Upgrade" token is found, the header is left untouched in order
6564 * 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]6565 * if anything but "Upgrade" is present in the Connection header. We don't
6566 * want to touch any 101 response either since it's switching to another
6567 * protocol.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6568 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]6569 if ((txn->status != 101) && !(txn->flags & TX_HDR_CONN_UPG) &&
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6570 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6571 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6572 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
6573 unsigned int want_flags = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6574
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6575 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6576 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
6577 /* we want a keep-alive response here. Keep-alive header
6578 * required if either side is not 1.1.
6579 */
6580 if (!(txn->req.flags & msg->flags & HTTP_MSGF_VER_11))
6581 want_flags |= TX_CON_KAL_SET;
6582 }
6583 else {
6584 /* we want a close response here. Close header required if
6585 * the server is 1.1, regardless of the client.
6586 */
6587 if (msg->flags & HTTP_MSGF_VER_11)
6588 want_flags |= TX_CON_CLO_SET;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6589 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6590
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6591 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
6592 http_change_connection_header(txn, msg, want_flags);
6593 }
6594
6595 skip_header_mangling:
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]6596 if ((msg->flags & HTTP_MSGF_XFER_LEN) || HAS_FILTERS(s) ||
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6597 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN) {
6598 rep->analysers &= ~AN_FLT_XFER_DATA;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6599 rep->analysers |= AN_RES_HTTP_XFER_BODY;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6600 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6601
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6602 /* if the user wants to log as soon as possible, without counting
6603 * bytes from the server, then this is the right moment. We have
6604 * to temporarily assign bytes_out to log what we currently have.
6605 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6606 if (!LIST_ISEMPTY(&sess->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6607 s->logs.t_close = s->logs.t_data; /* to get a valid end date */
6608 s->logs.bytes_out = txn->rsp.eoh;
6609 s->do_log(s);
6610 s->logs.bytes_out = 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6611 }
Willy Tarreaue3fa6e52010-01-04 22:57:43 +0100[diff] [blame]6612 return 1;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6613}
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6614
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6615/* This function is an analyser which forwards response body (including chunk
6616 * sizes if any). It is called as soon as we must forward, even if we forward
6617 * zero byte. The only situation where it must not be called is when we're in
6618 * tunnel mode and we want to forward till the close. It's used both to forward
6619 * remaining data and to resync after end of body. It expects the msg_state to
6620 * 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]6621 * 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]6622 *
6623 * It is capable of compressing response data both in content-length mode and
6624 * in chunked mode. The state machines follows different flows depending on
6625 * whether content-length and chunked modes are used, since there are no
6626 * trailers in content-length :
6627 *
6628 * chk-mode cl-mode
6629 * ,----- BODY -----.
6630 * / \
6631 * V size > 0 V chk-mode
6632 * .--> SIZE -------------> DATA -------------> CRLF
6633 * | | size == 0 | last byte |
6634 * | v final crlf v inspected |
6635 * | TRAILERS -----------> DONE |
6636 * | |
6637 * `----------------------------------------------'
6638 *
6639 * Compression only happens in the DATA state, and must be flushed in final
6640 * states (TRAILERS/DONE) or when leaving on missing data. Normal forwarding
6641 * is performed at once on final states for all bytes parsed, or when leaving
6642 * on missing data.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6643 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6644int http_response_forward_body(struct stream *s, struct channel *res, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6645{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6646 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6647 struct http_txn *txn = s->txn;
6648 struct http_msg *msg = &s->txn->rsp;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]6649 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6650
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6651 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
6652 return 0;
6653
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6654 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]6655 ((res->flags & CF_SHUTW) && (res->to_forward || res->buf->o)) ||
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6656 !s->req.analysers) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6657 /* Output closed while we were sending data. We must abort and
6658 * wake the other side up.
6659 */
6660 msg->msg_state = HTTP_MSG_ERROR;
6661 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]6662 return 1;
6663 }
6664
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6665 /* in most states, we should abort in case of early close */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6666 channel_auto_close(res);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]6667
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6668 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6669 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
6670 ? HTTP_MSG_CHUNK_SIZE
6671 : HTTP_MSG_DATA);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6672 }
6673
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6674 if (res->to_forward) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6675 /* We can't process the buffer's contents yet */
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6676 res->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6677 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6678 }
6679
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6680 if (msg->msg_state < HTTP_MSG_DONE) {
6681 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
6682 ? http_msg_forward_chunked_body(s, msg)
6683 : http_msg_forward_body(s, msg));
6684 if (!ret)
6685 goto missing_data_or_waiting;
6686 if (ret < 0)
6687 goto return_bad_res;
6688 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6689
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6690 /* other states, DONE...TUNNEL */
6691 /* for keep-alive we don't want to forward closes on DONE */
6692 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6693 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
6694 channel_dont_close(res);
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]6695
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6696 ret = msg->msg_state;
6697 if (http_resync_states(s)) {
6698 /* some state changes occurred, maybe the analyser was disabled
6699 * too. */
6700 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
6701 if (res->flags & CF_SHUTW) {
6702 /* response errors are most likely due to the
6703 * client aborting the transfer. */
6704 goto aborted_xfer;
Willy Tarreau5523b322009-12-29 12:05:52 +0100[diff] [blame]6705 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6706 if (msg->err_pos >= 0)
6707 http_capture_bad_message(&s->be->invalid_rep, s, msg, ret, strm_fe(s));
6708 goto return_bad_res;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6709 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6710 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6711 }
6712
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6713 missing_data_or_waiting:
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6714 if (res->flags & CF_SHUTW)
6715 goto aborted_xfer;
6716
6717 /* stop waiting for data if the input is closed before the end. If the
6718 * client side was already closed, it means that the client has aborted,
6719 * so we don't want to count this as a server abort. Otherwise it's a
6720 * server abort.
6721 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6722 if (res->flags & CF_SHUTR) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6723 if ((s->req.flags & (CF_SHUTR|CF_SHUTW)) == (CF_SHUTR|CF_SHUTW))
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6724 goto aborted_xfer;
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6725 /* If we have some pending data, we continue the processing */
6726 if (!buffer_pending(res->buf)) {
6727 if (!(s->flags & SF_ERR_MASK))
6728 s->flags |= SF_ERR_SRVCL;
6729 s->be->be_counters.srv_aborts++;
6730 if (objt_server(s->target))
6731 objt_server(s->target)->counters.srv_aborts++;
6732 goto return_bad_res_stats_ok;
6733 }
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6734 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6735
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6736 /* we need to obey the req analyser, so if it leaves, we must too */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6737 if (!s->req.analysers)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]6738 goto return_bad_res;
6739
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6740 /* When TE: chunked is used, we need to get there again to parse
6741 * remaining chunks even if the server has closed, so we don't want to
6742 * set CF_DONTCLOSE. Similarly, if the body length is undefined, if
6743 * keep-alive is set on the client side or if there are filters
6744 * registered on the stream, we don't want to forward a close
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6745 */
Christopher Faulet92d36382015-11-05 13:35:03 +0100[diff] [blame]6746 if ((msg->flags & HTTP_MSGF_TE_CHNK) || !msg->body_len ||
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6747 HAS_FILTERS(s) ||
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6748 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6749 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6750 channel_dont_close(res);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6751
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6752 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6753 * 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]6754 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]6755 * modes are already handled by the stream sock layer. We must not do
6756 * this in content-length mode because it could present the MSG_MORE
6757 * flag with the last block of forwarded data, which would cause an
6758 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6759 */
Christopher Faulet92d36382015-11-05 13:35:03 +0100[diff] [blame]6760 if ((msg->flags & HTTP_MSGF_TE_CHNK) || (msg->flags & HTTP_MSGF_COMPRESSING))
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6761 res->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6762
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6763 /* the stream handler will take care of timeouts and errors */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6764 return 0;
6765
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6766 return_bad_res: /* let's centralize all bad responses */
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]6767 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6768 if (objt_server(s->target))
6769 objt_server(s->target)->counters.failed_resp++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6770
6771 return_bad_res_stats_ok:
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6772 txn->rsp.msg_state = HTTP_MSG_ERROR;
Willy Tarreau148d0992010-01-10 10:21:21 +0100[diff] [blame]6773 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6774 http_reply_and_close(s, txn->status, NULL);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6775 res->analysers &= AN_FLT_END;
6776 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]6777 if (objt_server(s->target))
6778 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6779
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6780 if (!(s->flags & SF_ERR_MASK))
6781 s->flags |= SF_ERR_PRXCOND;
6782 if (!(s->flags & SF_FINST_MASK))
6783 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6784 return 0;
6785
6786 aborted_xfer:
6787 txn->rsp.msg_state = HTTP_MSG_ERROR;
6788 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6789 http_reply_and_close(s, txn->status, NULL);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6790 res->analysers &= AN_FLT_END;
6791 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]6792
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6793 sess->fe->fe_counters.cli_aborts++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]6794 s->be->be_counters.cli_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6795 if (objt_server(s->target))
6796 objt_server(s->target)->counters.cli_aborts++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6797
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6798 if (!(s->flags & SF_ERR_MASK))
6799 s->flags |= SF_ERR_CLICL;
6800 if (!(s->flags & SF_FINST_MASK))
6801 s->flags |= SF_FINST_D;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6802 return 0;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6803}
6804
6805
6806static inline int
6807http_msg_forward_body(struct stream *s, struct http_msg *msg)
6808{
6809 struct channel *chn = msg->chn;
6810 int ret;
6811
6812 /* Here we have the guarantee to be in HTTP_MSG_DATA or HTTP_MSG_ENDING state */
6813
6814 if (msg->msg_state == HTTP_MSG_ENDING)
6815 goto ending;
6816
6817 /* Neither content-length, nor transfer-encoding was found, so we must
6818 * read the body until the server connection is closed. In that case, we
6819 * eat data as they come. Of course, this happens for response only. */
6820 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6821 unsigned long long len = (chn->buf->i - msg->next);
6822 msg->chunk_len += len;
6823 msg->body_len += len;
6824 }
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6825 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6826 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6827 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6828 msg->next += ret;
6829 msg->chunk_len -= ret;
6830 if (msg->chunk_len) {
6831 /* input empty or output full */
6832 if (chn->buf->i > msg->next)
6833 chn->flags |= CF_WAKE_WRITE;
6834 goto missing_data_or_waiting;
6835 }
6836
6837 if (!(msg->flags & HTTP_MSGF_XFER_LEN) && !(chn->flags & CF_SHUTR)) {
6838 /* The server still sending data */
6839 goto missing_data_or_waiting;
6840 }
6841 msg->msg_state = HTTP_MSG_ENDING;
6842
6843 ending:
6844 /* we may have some pending data starting at res->buf->p such as a last
6845 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6846 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6847 /* default_ret */ msg->next,
6848 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6849 b_adv(chn->buf, ret);
6850 msg->next -= ret;
6851 if (msg->next)
6852 goto missing_data_or_waiting;
6853
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6854 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
6855 /* default_ret */ 1,
6856 /* on_error */ goto error,
6857 /* on_wait */ goto waiting);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6858 msg->msg_state = HTTP_MSG_DONE;
6859 return 1;
6860
6861 missing_data_or_waiting:
6862 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6863 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6864 /* default_ret */ msg->next,
6865 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6866 b_adv(chn->buf, ret);
6867 msg->next -= ret;
6868 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6869 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6870 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6871 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
6872 waiting:
6873 return 0;
6874 error:
6875 return -1;
6876}
6877
6878static inline int
6879http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg)
6880{
6881 struct channel *chn = msg->chn;
6882 int ret;
6883
6884 /* Here we have the guarantee to be in one of the following state:
6885 * HTTP_MSG_DATA, HTTP_MSG_CHUNK_SIZE, HTTP_MSG_CHUNK_CRLF,
6886 * HTTP_MSG_TRAILERS or HTTP_MSG_ENDING. */
6887
6888 switch_states:
6889 switch (msg->msg_state) {
6890 case HTTP_MSG_DATA:
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6891 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6892 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6893 /* on_error */ goto error);
6894 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6895 msg->chunk_len -= ret;
6896 if (msg->chunk_len) {
6897 /* input empty or output full */
6898 if (chn->buf->i > msg->next)
6899 chn->flags |= CF_WAKE_WRITE;
6900 goto missing_data_or_waiting;
6901 }
6902
6903 /* nothing left to forward for this chunk*/
6904 msg->msg_state = HTTP_MSG_CHUNK_CRLF;
6905 /* fall through for HTTP_MSG_CHUNK_CRLF */
6906
6907 case HTTP_MSG_CHUNK_CRLF:
6908 /* we want the CRLF after the data */
6909 ret = http_skip_chunk_crlf(msg);
6910 if (ret == 0)
6911 goto missing_data_or_waiting;
6912 if (ret < 0)
6913 goto chunk_parsing_error;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6914 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6915 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
6916 /* fall through for HTTP_MSG_CHUNK_SIZE */
6917
6918 case HTTP_MSG_CHUNK_SIZE:
6919 /* read the chunk size and assign it to ->chunk_len,
6920 * then set ->next to point to the body and switch to
6921 * DATA or TRAILERS state.
6922 */
6923 ret = http_parse_chunk_size(msg);
6924 if (ret == 0)
6925 goto missing_data_or_waiting;
6926 if (ret < 0)
6927 goto chunk_parsing_error;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6928 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6929 if (msg->chunk_len) {
6930 msg->msg_state = HTTP_MSG_DATA;
6931 goto switch_states;
6932 }
6933 msg->msg_state = HTTP_MSG_TRAILERS;
6934 /* fall through for HTTP_MSG_TRAILERS */
6935
6936 case HTTP_MSG_TRAILERS:
6937 ret = http_forward_trailers(msg);
6938 if (ret < 0)
6939 goto chunk_parsing_error;
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6940 FLT_STRM_DATA_CB(s, chn, flt_http_chunk_trailers(s, msg),
6941 /* default_ret */ 1,
6942 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6943 msg->next += msg->sol;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6944 if (!ret)
6945 goto missing_data_or_waiting;
6946 break;
6947
6948 case HTTP_MSG_ENDING:
6949 goto ending;
6950
6951 default:
6952 /* This should no happen in this function */
6953 goto error;
6954 }
6955
6956 msg->msg_state = HTTP_MSG_ENDING;
6957 ending:
6958 /* we may have some pending data starting at res->buf->p such as a last
6959 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6960 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]6961 /* default_ret */ msg->next,
6962 /* on_error */ goto error);
6963 b_adv(chn->buf, ret);
6964 msg->next -= ret;
6965 if (msg->next)
6966 goto missing_data_or_waiting;
6967
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6968 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6969 /* default_ret */ 1,
6970 /* on_error */ goto error,
6971 /* on_wait */ goto waiting);
6972 msg->msg_state = HTTP_MSG_DONE;
6973 return 1;
6974
6975 missing_data_or_waiting:
6976 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6977 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]6978 /* default_ret */ msg->next,
6979 /* on_error */ goto error);
6980 b_adv(chn->buf, ret);
6981 msg->next -= ret;
6982 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6983 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6984 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6985 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
6986 waiting:
6987 return 0;
6988
6989 chunk_parsing_error:
6990 if (msg->err_pos >= 0) {
6991 if (chn->flags & CF_ISRESP)
6992 http_capture_bad_message(&s->be->invalid_rep, s, msg,
6993 msg->msg_state, strm_fe(s));
6994 else
6995 http_capture_bad_message(&strm_fe(s)->invalid_req, s,
6996 msg, msg->msg_state, s->be);
6997 }
6998 error:
6999 return -1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]7000}
7001
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7002
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7003/* Iterate the same filter through all request headers.
7004 * Returns 1 if this filter can be stopped upon return, otherwise 0.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7005 * Since it can manage the switch to another backend, it updates the per-proxy
7006 * DENY stats.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7007 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7008int 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]7009{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7010 char *cur_ptr, *cur_end, *cur_next;
7011 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7012 struct http_txn *txn = s->txn;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7013 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7014 int delta;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100[diff] [blame]7015
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7016 last_hdr = 0;
7017
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7018 cur_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7019 old_idx = 0;
7020
7021 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7022 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7023 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7024 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7025 (exp->action == ACT_ALLOW ||
7026 exp->action == ACT_DENY ||
7027 exp->action == ACT_TARPIT))
7028 return 0;
7029
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7030 cur_idx = txn->hdr_idx.v[old_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7031 if (!cur_idx)
7032 break;
7033
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7034 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7035 cur_ptr = cur_next;
7036 cur_end = cur_ptr + cur_hdr->len;
7037 cur_next = cur_end + cur_hdr->cr + 1;
7038
7039 /* Now we have one header between cur_ptr and cur_end,
7040 * and the next header starts at cur_next.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7041 */
7042
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7043 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]7044 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7045 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7046 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7047 last_hdr = 1;
7048 break;
7049
7050 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7051 txn->flags |= TX_CLDENY;
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_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7056 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7057 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7058 break;
7059
7060 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7061 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7062 if (trash.len < 0)
7063 return -1;
7064
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7065 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7066 /* FIXME: if the user adds a newline in the replacement, the
7067 * index will not be recalculated for now, and the new line
7068 * will not be counted as a new header.
7069 */
7070
7071 cur_end += delta;
7072 cur_next += delta;
7073 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7074 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7075 break;
7076
7077 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7078 delta = buffer_replace2(req->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7079 cur_next += delta;
7080
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7081 http_msg_move_end(&txn->req, delta);
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7082 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7083 txn->hdr_idx.used--;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7084 cur_hdr->len = 0;
7085 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7086 cur_idx = old_idx;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7087 break;
7088
7089 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7090 }
7091
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7092 /* keep the link from this header to next one in case of later
7093 * removal of next header.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7094 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7095 old_idx = cur_idx;
7096 }
7097 return 0;
7098}
7099
7100
7101/* Apply the filter to the request line.
7102 * Returns 0 if nothing has been done, 1 if the filter has been applied,
7103 * or -1 if a replacement resulted in an invalid request line.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7104 * Since it can manage the switch to another backend, it updates the per-proxy
7105 * DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7106 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7107int 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]7108{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7109 char *cur_ptr, *cur_end;
7110 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7111 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7112 int delta;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7113
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7114 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7115 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7116 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7117 (exp->action == ACT_ALLOW ||
7118 exp->action == ACT_DENY ||
7119 exp->action == ACT_TARPIT))
7120 return 0;
7121 else if (exp->action == ACT_REMOVE)
7122 return 0;
7123
7124 done = 0;
7125
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7126 cur_ptr = req->buf->p;
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7127 cur_end = cur_ptr + txn->req.sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7128
7129 /* Now we have the request line between cur_ptr and cur_end */
7130
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7131 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]7132 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7133 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7134 txn->flags |= TX_CLALLOW;
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_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7139 txn->flags |= TX_CLDENY;
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_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7144 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7145 done = 1;
7146 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]7147
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7148 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7149 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7150 if (trash.len < 0)
7151 return -1;
7152
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7153 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7154 /* FIXME: if the user adds a newline in the replacement, the
7155 * index will not be recalculated for now, and the new line
7156 * will not be counted as a new header.
7157 */
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]7158
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7159 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7160 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7161 cur_end = (char *)http_parse_reqline(&txn->req,
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7162 HTTP_MSG_RQMETH,
7163 cur_ptr, cur_end + 1,
7164 NULL, NULL);
7165 if (unlikely(!cur_end))
7166 return -1;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]7167
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7168 /* we have a full request and we know that we have either a CR
7169 * or an LF at <ptr>.
7170 */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7171 txn->meth = find_http_meth(cur_ptr, txn->req.sl.rq.m_l);
7172 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]7173 /* there is no point trying this regex on headers */
7174 return 1;
7175 }
7176 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7177 return done;
7178}
Willy Tarreau97de6242006-12-27 17:18:38 +0100[diff] [blame]7179
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7180
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7181
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7182/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7183 * 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]7184 * 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]7185 * unparsable request. Since it can manage the switch to another backend, it
7186 * updates the per-proxy DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7187 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7188int apply_filters_to_request(struct stream *s, struct channel *req, struct proxy *px)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7189{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7190 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7191 struct http_txn *txn = s->txn;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]7192 struct hdr_exp *exp;
7193
7194 for (exp = px->req_exp; exp; exp = exp->next) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7195 int ret;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7196
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7197 /*
7198 * The interleaving of transformations and verdicts
7199 * makes it difficult to decide to continue or stop
7200 * the evaluation.
7201 */
7202
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]7203 if (txn->flags & (TX_CLDENY|TX_CLTARPIT))
7204 break;
7205
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7206 if ((txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7207 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]7208 exp->action == ACT_TARPIT || exp->action == ACT_PASS))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7209 continue;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]7210
7211 /* if this filter had a condition, evaluate it now and skip to
7212 * next filter if the condition does not match.
7213 */
7214 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7215 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]7216 ret = acl_pass(ret);
7217 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
7218 ret = !ret;
7219
7220 if (!ret)
7221 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7222 }
7223
7224 /* Apply the filter to the request line. */
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]7225 ret = apply_filter_to_req_line(s, req, exp);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7226 if (unlikely(ret < 0))
7227 return -1;
7228
7229 if (likely(ret == 0)) {
7230 /* The filter did not match the request, it can be
7231 * iterated through all headers.
7232 */
Willy Tarreau34d4c3c2015-01-30 20:58:58 +0100[diff] [blame]7233 if (unlikely(apply_filter_to_req_headers(s, req, exp) < 0))
7234 return -1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7235 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7236 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7237 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7238}
7239
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]7240
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7241/* Find the end of a cookie value contained between <s> and <e>. It works the
7242 * same way as with headers above except that the semi-colon also ends a token.
7243 * See RFC2965 for more information. Note that it requires a valid header to
7244 * return a valid result.
7245 */
7246char *find_cookie_value_end(char *s, const char *e)
7247{
7248 int quoted, qdpair;
7249
7250 quoted = qdpair = 0;
7251 for (; s < e; s++) {
7252 if (qdpair) qdpair = 0;
7253 else if (quoted) {
7254 if (*s == '\\') qdpair = 1;
7255 else if (*s == '"') quoted = 0;
7256 }
7257 else if (*s == '"') quoted = 1;
7258 else if (*s == ',' || *s == ';') return s;
7259 }
7260 return s;
7261}
7262
7263/* Delete a value in a header between delimiters <from> and <next> in buffer
7264 * <buf>. The number of characters displaced is returned, and the pointer to
7265 * the first delimiter is updated if required. The function tries as much as
7266 * possible to respect the following principles :
7267 * - replace <from> delimiter by the <next> one unless <from> points to a
7268 * colon, in which case <next> is simply removed
7269 * - set exactly one space character after the new first delimiter, unless
7270 * there are not enough characters in the block being moved to do so.
7271 * - remove unneeded spaces before the previous delimiter and after the new
7272 * one.
7273 *
7274 * It is the caller's responsibility to ensure that :
7275 * - <from> points to a valid delimiter or the colon ;
7276 * - <next> points to a valid delimiter or the final CR/LF ;
7277 * - there are non-space chars before <from> ;
7278 * - there is a CR/LF at or after <next>.
7279 */
Willy Tarreauaf819352012-08-27 22:08:00 +0200[diff] [blame]7280int del_hdr_value(struct buffer *buf, char **from, char *next)
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7281{
7282 char *prev = *from;
7283
7284 if (*prev == ':') {
7285 /* We're removing the first value, preserve the colon and add a
7286 * space if possible.
7287 */
7288 if (!http_is_crlf[(unsigned char)*next])
7289 next++;
7290 prev++;
7291 if (prev < next)
7292 *prev++ = ' ';
7293
7294 while (http_is_spht[(unsigned char)*next])
7295 next++;
7296 } else {
7297 /* Remove useless spaces before the old delimiter. */
7298 while (http_is_spht[(unsigned char)*(prev-1)])
7299 prev--;
7300 *from = prev;
7301
7302 /* copy the delimiter and if possible a space if we're
7303 * not at the end of the line.
7304 */
7305 if (!http_is_crlf[(unsigned char)*next]) {
7306 *prev++ = *next++;
7307 if (prev + 1 < next)
7308 *prev++ = ' ';
7309 while (http_is_spht[(unsigned char)*next])
7310 next++;
7311 }
7312 }
7313 return buffer_replace2(buf, prev, next, NULL, 0);
7314}
7315
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]7316/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]7317 * Manage client-side cookie. It can impact performance by about 2% so it is
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7318 * desirable to call it only when needed. This code is quite complex because
7319 * of the multiple very crappy and ambiguous syntaxes we have to support. it
7320 * highly recommended not to touch this part without a good reason !
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7321 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7322void manage_client_side_cookies(struct stream *s, struct channel *req)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7323{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7324 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7325 struct session *sess = s->sess;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7326 int preserve_hdr;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7327 int cur_idx, old_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7328 char *hdr_beg, *hdr_end, *hdr_next, *del_from;
7329 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7330
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7331 /* Iterate through the headers, we start with the start line. */
Willy Tarreau83969f42007-01-22 08:55:47 +0100[diff] [blame]7332 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7333 hdr_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7334
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7335 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7336 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7337 int val;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7338
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7339 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7340 hdr_beg = hdr_next;
7341 hdr_end = hdr_beg + cur_hdr->len;
7342 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7343
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7344 /* We have one full header between hdr_beg and hdr_end, and the
7345 * next header starts at hdr_next. We're only interested in
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7346 * "Cookie:" headers.
7347 */
7348
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7349 val = http_header_match2(hdr_beg, hdr_end, "Cookie", 6);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7350 if (!val) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7351 old_idx = cur_idx;
7352 continue;
7353 }
7354
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7355 del_from = NULL; /* nothing to be deleted */
7356 preserve_hdr = 0; /* assume we may kill the whole header */
7357
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7358 /* Now look for cookies. Conforming to RFC2109, we have to support
7359 * attributes whose name begin with a '$', and associate them with
7360 * the right cookie, if we want to delete this cookie.
7361 * So there are 3 cases for each cookie read :
7362 * 1) it's a special attribute, beginning with a '$' : ignore it.
7363 * 2) it's a server id cookie that we *MAY* want to delete : save
7364 * some pointers on it (last semi-colon, beginning of cookie...)
7365 * 3) it's an application cookie : we *MAY* have to delete a previous
7366 * "special" cookie.
7367 * At the end of loop, if a "special" cookie remains, we may have to
7368 * remove it. If no application cookie persists in the header, we
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7369 * *MUST* delete it.
7370 *
7371 * Note: RFC2965 is unclear about the processing of spaces around
7372 * the equal sign in the ATTR=VALUE form. A careful inspection of
7373 * the RFC explicitly allows spaces before it, and not within the
7374 * tokens (attrs or values). An inspection of RFC2109 allows that
7375 * too but section 10.1.3 lets one think that spaces may be allowed
7376 * after the equal sign too, resulting in some (rare) buggy
7377 * implementations trying to do that. So let's do what servers do.
7378 * Latest ietf draft forbids spaces all around. Also, earlier RFCs
7379 * allowed quoted strings in values, with any possible character
7380 * after a backslash, including control chars and delimitors, which
7381 * causes parsing to become ambiguous. Browsers also allow spaces
7382 * within values even without quotes.
7383 *
7384 * We have to keep multiple pointers in order to support cookie
7385 * removal at the beginning, middle or end of header without
7386 * corrupting the header. All of these headers are valid :
7387 *
7388 * Cookie:NAME1=VALUE1;NAME2=VALUE2;NAME3=VALUE3\r\n
7389 * Cookie:NAME1=VALUE1;NAME2_ONLY ;NAME3=VALUE3\r\n
7390 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
7391 * | | | | | | | | |
7392 * | | | | | | | | hdr_end <--+
7393 * | | | | | | | +--> next
7394 * | | | | | | +----> val_end
7395 * | | | | | +-----------> val_beg
7396 * | | | | +--------------> equal
7397 * | | | +----------------> att_end
7398 * | | +---------------------> att_beg
7399 * | +--------------------------> prev
7400 * +--------------------------------> hdr_beg
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7401 */
7402
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7403 for (prev = hdr_beg + 6; prev < hdr_end; prev = next) {
7404 /* Iterate through all cookies on this line */
7405
7406 /* find att_beg */
7407 att_beg = prev + 1;
7408 while (att_beg < hdr_end && http_is_spht[(unsigned char)*att_beg])
7409 att_beg++;
7410
7411 /* find att_end : this is the first character after the last non
7412 * space before the equal. It may be equal to hdr_end.
7413 */
7414 equal = att_end = att_beg;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7415
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7416 while (equal < hdr_end) {
7417 if (*equal == '=' || *equal == ',' || *equal == ';')
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7418 break;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7419 if (http_is_spht[(unsigned char)*equal++])
7420 continue;
7421 att_end = equal;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7422 }
7423
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7424 /* here, <equal> points to '=', a delimitor or the end. <att_end>
7425 * is between <att_beg> and <equal>, both may be identical.
7426 */
7427
7428 /* look for end of cookie if there is an equal sign */
7429 if (equal < hdr_end && *equal == '=') {
7430 /* look for the beginning of the value */
7431 val_beg = equal + 1;
7432 while (val_beg < hdr_end && http_is_spht[(unsigned char)*val_beg])
7433 val_beg++;
7434
7435 /* find the end of the value, respecting quotes */
7436 next = find_cookie_value_end(val_beg, hdr_end);
7437
7438 /* make val_end point to the first white space or delimitor after the value */
7439 val_end = next;
7440 while (val_end > val_beg && http_is_spht[(unsigned char)*(val_end - 1)])
7441 val_end--;
7442 } else {
7443 val_beg = val_end = next = equal;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]7444 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7445
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7446 /* We have nothing to do with attributes beginning with '$'. However,
7447 * they will automatically be removed if a header before them is removed,
7448 * since they're supposed to be linked together.
7449 */
7450 if (*att_beg == '$')
7451 continue;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7452
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7453 /* Ignore cookies with no equal sign */
7454 if (equal == next) {
7455 /* This is not our cookie, so we must preserve it. But if we already
7456 * scheduled another cookie for removal, we cannot remove the
7457 * complete header, but we can remove the previous block itself.
7458 */
7459 preserve_hdr = 1;
7460 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7461 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7462 val_end += delta;
7463 next += delta;
7464 hdr_end += delta;
7465 hdr_next += delta;
7466 cur_hdr->len += delta;
7467 http_msg_move_end(&txn->req, delta);
7468 prev = del_from;
7469 del_from = NULL;
7470 }
7471 continue;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]7472 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7473
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7474 /* if there are spaces around the equal sign, we need to
7475 * strip them otherwise we'll get trouble for cookie captures,
7476 * or even for rewrites. Since this happens extremely rarely,
7477 * it does not hurt performance.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7478 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7479 if (unlikely(att_end != equal || val_beg > equal + 1)) {
7480 int stripped_before = 0;
7481 int stripped_after = 0;
7482
7483 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7484 stripped_before = buffer_replace2(req->buf, att_end, equal, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7485 equal += stripped_before;
7486 val_beg += stripped_before;
7487 }
7488
7489 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7490 stripped_after = buffer_replace2(req->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7491 val_beg += stripped_after;
7492 stripped_before += stripped_after;
7493 }
7494
7495 val_end += stripped_before;
7496 next += stripped_before;
7497 hdr_end += stripped_before;
7498 hdr_next += stripped_before;
7499 cur_hdr->len += stripped_before;
7500 http_msg_move_end(&txn->req, stripped_before);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7501 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7502 /* now everything is as on the diagram above */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7503
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7504 /* First, let's see if we want to capture this cookie. We check
7505 * that we don't already have a client side cookie, because we
7506 * can only capture one. Also as an optimisation, we ignore
7507 * cookies shorter than the declared name.
7508 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7509 if (sess->fe->capture_name != NULL && txn->cli_cookie == NULL &&
7510 (val_end - att_beg >= sess->fe->capture_namelen) &&
7511 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7512 int log_len = val_end - att_beg;
7513
7514 if ((txn->cli_cookie = pool_alloc2(pool2_capture)) == NULL) {
7515 Alert("HTTP logging : out of memory.\n");
7516 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7517 if (log_len > sess->fe->capture_len)
7518 log_len = sess->fe->capture_len;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7519 memcpy(txn->cli_cookie, att_beg, log_len);
7520 txn->cli_cookie[log_len] = 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7521 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7522 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7523
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7524 /* Persistence cookies in passive, rewrite or insert mode have the
7525 * following form :
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7526 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7527 * Cookie: NAME=SRV[|<lastseen>[|<firstseen>]]
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7528 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7529 * For cookies in prefix mode, the form is :
7530 *
7531 * Cookie: NAME=SRV~VALUE
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7532 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7533 if ((att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
7534 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
7535 struct server *srv = s->be->srv;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7536 char *delim;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7537
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7538 /* if we're in cookie prefix mode, we'll search the delimitor so that we
7539 * have the server ID between val_beg and delim, and the original cookie between
7540 * delim+1 and val_end. Otherwise, delim==val_end :
7541 *
7542 * Cookie: NAME=SRV; # in all but prefix modes
7543 * Cookie: NAME=SRV~OPAQUE ; # in prefix mode
7544 * | || || | |+-> next
7545 * | || || | +--> val_end
7546 * | || || +---------> delim
7547 * | || |+------------> val_beg
7548 * | || +-------------> att_end = equal
7549 * | |+-----------------> att_beg
7550 * | +------------------> prev
7551 * +-------------------------> hdr_beg
7552 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7553
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7554 if (s->be->ck_opts & PR_CK_PFX) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7555 for (delim = val_beg; delim < val_end; delim++)
7556 if (*delim == COOKIE_DELIM)
7557 break;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7558 } else {
7559 char *vbar1;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7560 delim = val_end;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7561 /* Now check if the cookie contains a date field, which would
7562 * appear after a vertical bar ('|') just after the server name
7563 * and before the delimiter.
7564 */
7565 vbar1 = memchr(val_beg, COOKIE_DELIM_DATE, val_end - val_beg);
7566 if (vbar1) {
7567 /* OK, so left of the bar is the server's cookie and
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7568 * right is the last seen date. It is a base64 encoded
7569 * 30-bit value representing the UNIX date since the
7570 * epoch in 4-second quantities.
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7571 */
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7572 int val;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7573 delim = vbar1++;
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7574 if (val_end - vbar1 >= 5) {
7575 val = b64tos30(vbar1);
7576 if (val > 0)
7577 txn->cookie_last_date = val << 2;
7578 }
7579 /* look for a second vertical bar */
7580 vbar1 = memchr(vbar1, COOKIE_DELIM_DATE, val_end - vbar1);
7581 if (vbar1 && (val_end - vbar1 > 5)) {
7582 val = b64tos30(vbar1 + 1);
7583 if (val > 0)
7584 txn->cookie_first_date = val << 2;
7585 }
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7586 }
7587 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7588
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7589 /* if the cookie has an expiration date and the proxy wants to check
7590 * it, then we do that now. We first check if the cookie is too old,
7591 * then only if it has expired. We detect strict overflow because the
7592 * time resolution here is not great (4 seconds). Cookies with dates
7593 * in the future are ignored if their offset is beyond one day. This
7594 * allows an admin to fix timezone issues without expiring everyone
7595 * and at the same time avoids keeping unwanted side effects for too
7596 * long.
7597 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7598 if (txn->cookie_first_date && s->be->cookie_maxlife &&
7599 (((signed)(date.tv_sec - txn->cookie_first_date) > (signed)s->be->cookie_maxlife) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]7600 ((signed)(txn->cookie_first_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7601 txn->flags &= ~TX_CK_MASK;
7602 txn->flags |= TX_CK_OLD;
7603 delim = val_beg; // let's pretend we have not found the cookie
7604 txn->cookie_first_date = 0;
7605 txn->cookie_last_date = 0;
7606 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7607 else if (txn->cookie_last_date && s->be->cookie_maxidle &&
7608 (((signed)(date.tv_sec - txn->cookie_last_date) > (signed)s->be->cookie_maxidle) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]7609 ((signed)(txn->cookie_last_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7610 txn->flags &= ~TX_CK_MASK;
7611 txn->flags |= TX_CK_EXPIRED;
7612 delim = val_beg; // let's pretend we have not found the cookie
7613 txn->cookie_first_date = 0;
7614 txn->cookie_last_date = 0;
7615 }
7616
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7617 /* Here, we'll look for the first running server which supports the cookie.
7618 * This allows to share a same cookie between several servers, for example
7619 * to dedicate backup servers to specific servers only.
7620 * However, to prevent clients from sticking to cookie-less backup server
7621 * when they have incidentely learned an empty cookie, we simply ignore
7622 * empty cookies and mark them as invalid.
7623 * The same behaviour is applied when persistence must be ignored.
7624 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7625 if ((delim == val_beg) || (s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7626 srv = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7627
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7628 while (srv) {
7629 if (srv->cookie && (srv->cklen == delim - val_beg) &&
7630 !memcmp(val_beg, srv->cookie, delim - val_beg)) {
Willy Tarreau892337c2014-05-13 23:41:20 +0200[diff] [blame]7631 if ((srv->state != SRV_ST_STOPPED) ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7632 (s->be->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7633 (s->flags & SF_FORCE_PRST)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7634 /* we found the server and we can use it */
7635 txn->flags &= ~TX_CK_MASK;
Willy Tarreau892337c2014-05-13 23:41:20 +0200[diff] [blame]7636 txn->flags |= (srv->state != SRV_ST_STOPPED) ? TX_CK_VALID : TX_CK_DOWN;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7637 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7638 s->target = &srv->obj_type;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7639 break;
7640 } else {
7641 /* we found a server, but it's down,
7642 * mark it as such and go on in case
7643 * another one is available.
7644 */
7645 txn->flags &= ~TX_CK_MASK;
7646 txn->flags |= TX_CK_DOWN;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7647 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7648 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7649 srv = srv->next;
7650 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7651
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7652 if (!srv && !(txn->flags & (TX_CK_DOWN|TX_CK_EXPIRED|TX_CK_OLD))) {
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7653 /* no server matched this cookie or we deliberately skipped it */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7654 txn->flags &= ~TX_CK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7655 if ((s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7656 txn->flags |= TX_CK_UNUSED;
7657 else
7658 txn->flags |= TX_CK_INVALID;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7659 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7660
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7661 /* depending on the cookie mode, we may have to either :
7662 * - delete the complete cookie if we're in insert+indirect mode, so that
7663 * the server never sees it ;
7664 * - remove the server id from the cookie value, and tag the cookie as an
7665 * application cookie so that it does not get accidentely removed later,
7666 * if we're in cookie prefix mode
7667 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7668 if ((s->be->ck_opts & PR_CK_PFX) && (delim != val_end)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7669 int delta; /* negative */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7670
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7671 delta = buffer_replace2(req->buf, val_beg, delim + 1, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7672 val_end += delta;
7673 next += delta;
7674 hdr_end += delta;
7675 hdr_next += delta;
7676 cur_hdr->len += delta;
7677 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7678
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7679 del_from = NULL;
7680 preserve_hdr = 1; /* we want to keep this cookie */
7681 }
7682 else if (del_from == NULL &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7683 (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]7684 del_from = prev;
7685 }
7686 } else {
7687 /* This is not our cookie, so we must preserve it. But if we already
7688 * scheduled another cookie for removal, we cannot remove the
7689 * complete header, but we can remove the previous block itself.
7690 */
7691 preserve_hdr = 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7692
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7693 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7694 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaub8105542010-11-24 18:31:28 +0100[diff] [blame]7695 if (att_beg >= del_from)
7696 att_beg += delta;
7697 if (att_end >= del_from)
7698 att_end += delta;
7699 val_beg += delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7700 val_end += delta;
7701 next += delta;
7702 hdr_end += delta;
7703 hdr_next += delta;
7704 cur_hdr->len += delta;
7705 http_msg_move_end(&txn->req, delta);
7706 prev = del_from;
7707 del_from = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7708 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7709 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7710
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7711 /* continue with next cookie on this header line */
7712 att_beg = next;
7713 } /* for each cookie */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7714
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7715 /* There are no more cookies on this line.
7716 * We may still have one (or several) marked for deletion at the
7717 * end of the line. We must do this now in two ways :
7718 * - if some cookies must be preserved, we only delete from the
7719 * mark to the end of line ;
7720 * - if nothing needs to be preserved, simply delete the whole header
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7721 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7722 if (del_from) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7723 int delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7724 if (preserve_hdr) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7725 delta = del_hdr_value(req->buf, &del_from, hdr_end);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7726 hdr_end = del_from;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7727 cur_hdr->len += delta;
7728 } else {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7729 delta = buffer_replace2(req->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7730
7731 /* FIXME: this should be a separate function */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7732 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7733 txn->hdr_idx.used--;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7734 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7735 cur_idx = old_idx;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7736 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7737 hdr_next += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7738 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7739 }
7740
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7741 /* check next header */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7742 old_idx = cur_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7743 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7744}
7745
7746
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7747/* Iterate the same filter through all response headers contained in <rtr>.
7748 * Returns 1 if this filter can be stopped upon return, otherwise 0.
7749 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7750int 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]7751{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7752 char *cur_ptr, *cur_end, *cur_next;
7753 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7754 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7755 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7756 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7757
7758 last_hdr = 0;
7759
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7760 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7761 old_idx = 0;
7762
7763 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7764 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7765 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7766 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7767 (exp->action == ACT_ALLOW ||
7768 exp->action == ACT_DENY))
7769 return 0;
7770
7771 cur_idx = txn->hdr_idx.v[old_idx].next;
7772 if (!cur_idx)
7773 break;
7774
7775 cur_hdr = &txn->hdr_idx.v[cur_idx];
7776 cur_ptr = cur_next;
7777 cur_end = cur_ptr + cur_hdr->len;
7778 cur_next = cur_end + cur_hdr->cr + 1;
7779
7780 /* Now we have one header between cur_ptr and cur_end,
7781 * and the next header starts at cur_next.
7782 */
7783
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7784 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]7785 switch (exp->action) {
7786 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7787 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7788 last_hdr = 1;
7789 break;
7790
7791 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7792 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7793 last_hdr = 1;
7794 break;
7795
7796 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7797 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7798 if (trash.len < 0)
7799 return -1;
7800
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7801 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7802 /* FIXME: if the user adds a newline in the replacement, the
7803 * index will not be recalculated for now, and the new line
7804 * will not be counted as a new header.
7805 */
7806
7807 cur_end += delta;
7808 cur_next += delta;
7809 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7810 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7811 break;
7812
7813 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7814 delta = buffer_replace2(rtr->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7815 cur_next += delta;
7816
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7817 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7818 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7819 txn->hdr_idx.used--;
7820 cur_hdr->len = 0;
7821 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7822 cur_idx = old_idx;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7823 break;
7824
7825 }
7826 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7827
7828 /* keep the link from this header to next one in case of later
7829 * removal of next header.
7830 */
7831 old_idx = cur_idx;
7832 }
7833 return 0;
7834}
7835
7836
7837/* Apply the filter to the status line in the response buffer <rtr>.
7838 * Returns 0 if nothing has been done, 1 if the filter has been applied,
7839 * or -1 if a replacement resulted in an invalid status line.
7840 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7841int 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]7842{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7843 char *cur_ptr, *cur_end;
7844 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7845 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7846 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7847
7848
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7849 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7850 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7851 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7852 (exp->action == ACT_ALLOW ||
7853 exp->action == ACT_DENY))
7854 return 0;
7855 else if (exp->action == ACT_REMOVE)
7856 return 0;
7857
7858 done = 0;
7859
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7860 cur_ptr = rtr->buf->p;
Willy Tarreau1ba0e5f2010-06-07 13:57:32 +0200[diff] [blame]7861 cur_end = cur_ptr + txn->rsp.sl.st.l;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7862
7863 /* Now we have the status line between cur_ptr and cur_end */
7864
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7865 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]7866 switch (exp->action) {
7867 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7868 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7869 done = 1;
7870 break;
7871
7872 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7873 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7874 done = 1;
7875 break;
7876
7877 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7878 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7879 if (trash.len < 0)
7880 return -1;
7881
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7882 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7883 /* FIXME: if the user adds a newline in the replacement, the
7884 * index will not be recalculated for now, and the new line
7885 * will not be counted as a new header.
7886 */
7887
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7888 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7889 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7890 cur_end = (char *)http_parse_stsline(&txn->rsp,
Willy Tarreau02785762007-04-03 14:45:44 +0200[diff] [blame]7891 HTTP_MSG_RPVER,
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7892 cur_ptr, cur_end + 1,
7893 NULL, NULL);
7894 if (unlikely(!cur_end))
7895 return -1;
7896
7897 /* we have a full respnse and we know that we have either a CR
7898 * or an LF at <ptr>.
7899 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7900 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]7901 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]7902 /* there is no point trying this regex on headers */
7903 return 1;
7904 }
7905 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7906 return done;
7907}
7908
7909
7910
7911/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7912 * 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]7913 * Returns 0 if everything is alright, or -1 in case a replacement lead to an
7914 * unparsable response.
7915 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7916int apply_filters_to_response(struct stream *s, struct channel *rtr, struct proxy *px)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7917{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7918 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7919 struct http_txn *txn = s->txn;
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7920 struct hdr_exp *exp;
7921
7922 for (exp = px->rsp_exp; exp; exp = exp->next) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7923 int ret;
7924
7925 /*
7926 * The interleaving of transformations and verdicts
7927 * makes it difficult to decide to continue or stop
7928 * the evaluation.
7929 */
7930
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7931 if (txn->flags & TX_SVDENY)
7932 break;
7933
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7934 if ((txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7935 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
7936 exp->action == ACT_PASS)) {
7937 exp = exp->next;
7938 continue;
7939 }
7940
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7941 /* if this filter had a condition, evaluate it now and skip to
7942 * next filter if the condition does not match.
7943 */
7944 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7945 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]7946 ret = acl_pass(ret);
7947 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
7948 ret = !ret;
7949 if (!ret)
7950 continue;
7951 }
7952
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7953 /* Apply the filter to the status line. */
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7954 ret = apply_filter_to_sts_line(s, rtr, exp);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7955 if (unlikely(ret < 0))
7956 return -1;
7957
7958 if (likely(ret == 0)) {
7959 /* The filter did not match the response, it can be
7960 * iterated through all headers.
7961 */
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7962 if (unlikely(apply_filter_to_resp_headers(s, rtr, exp) < 0))
7963 return -1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7964 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7965 }
7966 return 0;
7967}
7968
7969
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7970/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]7971 * Manage server-side cookies. It can impact performance by about 2% so it is
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7972 * desirable to call it only when needed. This function is also used when we
7973 * just need to know if there is a cookie (eg: for check-cache).
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7974 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7975void manage_server_side_cookies(struct stream *s, struct channel *res)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7976{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7977 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7978 struct session *sess = s->sess;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7979 struct server *srv;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7980 int is_cookie2;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7981 int cur_idx, old_idx, delta;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7982 char *hdr_beg, *hdr_end, *hdr_next;
7983 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7984
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7985 /* Iterate through the headers.
7986 * we start with the start line.
7987 */
7988 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7989 hdr_next = res->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7990
7991 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
7992 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7993 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7994
7995 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7996 hdr_beg = hdr_next;
7997 hdr_end = hdr_beg + cur_hdr->len;
7998 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7999
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8000 /* We have one full header between hdr_beg and hdr_end, and the
8001 * next header starts at hdr_next. We're only interested in
8002 * "Set-Cookie" and "Set-Cookie2" headers.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8003 */
8004
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8005 is_cookie2 = 0;
8006 prev = hdr_beg + 10;
8007 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie", 10);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8008 if (!val) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8009 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie2", 11);
8010 if (!val) {
8011 old_idx = cur_idx;
8012 continue;
8013 }
8014 is_cookie2 = 1;
8015 prev = hdr_beg + 11;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8016 }
8017
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8018 /* OK, right now we know we have a Set-Cookie* at hdr_beg, and
8019 * <prev> points to the colon.
8020 */
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]8021 txn->flags |= TX_SCK_PRESENT;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8022
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8023 /* Maybe we only wanted to see if there was a Set-Cookie (eg:
8024 * check-cache is enabled) and we are not interested in checking
8025 * them. Warning, the cookie capture is declared in the frontend.
Willy Tarreaufd39dda2008-10-17 12:01:58 +0200[diff] [blame]8026 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]8027 if (s->be->cookie_name == NULL && sess->fe->capture_name == NULL)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8028 return;
8029
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8030 /* OK so now we know we have to process this response cookie.
8031 * The format of the Set-Cookie header is slightly different
8032 * from the format of the Cookie header in that it does not
8033 * support the comma as a cookie delimiter (thus the header
8034 * cannot be folded) because the Expires attribute described in
8035 * the original Netscape's spec may contain an unquoted date
8036 * with a comma inside. We have to live with this because
8037 * many browsers don't support Max-Age and some browsers don't
8038 * support quoted strings. However the Set-Cookie2 header is
8039 * clean.
8040 *
8041 * We have to keep multiple pointers in order to support cookie
8042 * removal at the beginning, middle or end of header without
8043 * corrupting the header (in case of set-cookie2). A special
8044 * pointer, <scav> points to the beginning of the set-cookie-av
8045 * fields after the first semi-colon. The <next> pointer points
8046 * either to the end of line (set-cookie) or next unquoted comma
8047 * (set-cookie2). All of these headers are valid :
8048 *
8049 * Set-Cookie: NAME1 = VALUE 1 ; Secure; Path="/"\r\n
8050 * Set-Cookie:NAME=VALUE; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
8051 * Set-Cookie: NAME = VALUE ; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
8052 * Set-Cookie2: NAME1 = VALUE 1 ; Max-Age=0, NAME2=VALUE2; Discard\r\n
8053 * | | | | | | | | | |
8054 * | | | | | | | | +-> next hdr_end <--+
8055 * | | | | | | | +------------> scav
8056 * | | | | | | +--------------> val_end
8057 * | | | | | +--------------------> val_beg
8058 * | | | | +----------------------> equal
8059 * | | | +------------------------> att_end
8060 * | | +----------------------------> att_beg
8061 * | +------------------------------> prev
8062 * +-----------------------------------------> hdr_beg
8063 */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8064
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8065 for (; prev < hdr_end; prev = next) {
8066 /* Iterate through all cookies on this line */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8067
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8068 /* find att_beg */
8069 att_beg = prev + 1;
8070 while (att_beg < hdr_end && http_is_spht[(unsigned char)*att_beg])
8071 att_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8072
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8073 /* find att_end : this is the first character after the last non
8074 * space before the equal. It may be equal to hdr_end.
8075 */
8076 equal = att_end = att_beg;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8077
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8078 while (equal < hdr_end) {
8079 if (*equal == '=' || *equal == ';' || (is_cookie2 && *equal == ','))
8080 break;
8081 if (http_is_spht[(unsigned char)*equal++])
8082 continue;
8083 att_end = equal;
8084 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8085
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8086 /* here, <equal> points to '=', a delimitor or the end. <att_end>
8087 * is between <att_beg> and <equal>, both may be identical.
8088 */
8089
8090 /* look for end of cookie if there is an equal sign */
8091 if (equal < hdr_end && *equal == '=') {
8092 /* look for the beginning of the value */
8093 val_beg = equal + 1;
8094 while (val_beg < hdr_end && http_is_spht[(unsigned char)*val_beg])
8095 val_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8096
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8097 /* find the end of the value, respecting quotes */
8098 next = find_cookie_value_end(val_beg, hdr_end);
8099
8100 /* make val_end point to the first white space or delimitor after the value */
8101 val_end = next;
8102 while (val_end > val_beg && http_is_spht[(unsigned char)*(val_end - 1)])
8103 val_end--;
8104 } else {
8105 /* <equal> points to next comma, semi-colon or EOL */
8106 val_beg = val_end = next = equal;
8107 }
8108
8109 if (next < hdr_end) {
8110 /* Set-Cookie2 supports multiple cookies, and <next> points to
8111 * a colon or semi-colon before the end. So skip all attr-value
8112 * pairs and look for the next comma. For Set-Cookie, since
8113 * commas are permitted in values, skip to the end.
8114 */
8115 if (is_cookie2)
8116 next = find_hdr_value_end(next, hdr_end);
8117 else
8118 next = hdr_end;
8119 }
8120
8121 /* Now everything is as on the diagram above */
8122
8123 /* Ignore cookies with no equal sign */
8124 if (equal == val_end)
8125 continue;
8126
8127 /* If there are spaces around the equal sign, we need to
8128 * strip them otherwise we'll get trouble for cookie captures,
8129 * or even for rewrites. Since this happens extremely rarely,
8130 * it does not hurt performance.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8131 */
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8132 if (unlikely(att_end != equal || val_beg > equal + 1)) {
8133 int stripped_before = 0;
8134 int stripped_after = 0;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8135
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8136 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8137 stripped_before = buffer_replace2(res->buf, att_end, equal, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8138 equal += stripped_before;
8139 val_beg += stripped_before;
8140 }
8141
8142 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8143 stripped_after = buffer_replace2(res->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8144 val_beg += stripped_after;
8145 stripped_before += stripped_after;
8146 }
8147
8148 val_end += stripped_before;
8149 next += stripped_before;
8150 hdr_end += stripped_before;
8151 hdr_next += stripped_before;
8152 cur_hdr->len += stripped_before;
Willy Tarreau1fc1f452011-04-07 22:35:37 +0200[diff] [blame]8153 http_msg_move_end(&txn->rsp, stripped_before);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8154 }
8155
8156 /* First, let's see if we want to capture this cookie. We check
8157 * that we don't already have a server side cookie, because we
8158 * can only capture one. Also as an optimisation, we ignore
8159 * cookies shorter than the declared name.
8160 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8161 if (sess->fe->capture_name != NULL &&
Willy Tarreau3bac9ff2007-03-18 17:31:28 +0100[diff] [blame]8162 txn->srv_cookie == NULL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8163 (val_end - att_beg >= sess->fe->capture_namelen) &&
8164 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8165 int log_len = val_end - att_beg;
Willy Tarreau086b3b42007-05-13 21:45:51 +0200[diff] [blame]8166 if ((txn->srv_cookie = pool_alloc2(pool2_capture)) == NULL) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8167 Alert("HTTP logging : out of memory.\n");
8168 }
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]8169 else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8170 if (log_len > sess->fe->capture_len)
8171 log_len = sess->fe->capture_len;
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]8172 memcpy(txn->srv_cookie, att_beg, log_len);
8173 txn->srv_cookie[log_len] = 0;
8174 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8175 }
8176
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8177 srv = objt_server(s->target);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8178 /* now check if we need to process it for persistence */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]8179 if (!(s->flags & SF_IGNORE_PRST) &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8180 (att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
8181 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]8182 /* assume passive cookie by default */
8183 txn->flags &= ~TX_SCK_MASK;
8184 txn->flags |= TX_SCK_FOUND;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8185
8186 /* If the cookie is in insert mode on a known server, we'll delete
8187 * this occurrence because we'll insert another one later.
8188 * 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]8189 * a direct access.
8190 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8191 if (s->be->ck_opts & PR_CK_PSV) {
Willy Tarreauba4c5be2010-10-23 12:46:42 +0200[diff] [blame]8192 /* The "preserve" flag was set, we don't want to touch the
8193 * server's cookie.
8194 */
8195 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8196 else if ((srv && (s->be->ck_opts & PR_CK_INS)) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]8197 ((s->flags & SF_DIRECT) && (s->be->ck_opts & PR_CK_IND))) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8198 /* this cookie must be deleted */
8199 if (*prev == ':' && next == hdr_end) {
8200 /* whole header */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8201 delta = buffer_replace2(res->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8202 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
8203 txn->hdr_idx.used--;
8204 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]8205 cur_idx = old_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8206 hdr_next += delta;
8207 http_msg_move_end(&txn->rsp, delta);
8208 /* note: while both invalid now, <next> and <hdr_end>
8209 * are still equal, so the for() will stop as expected.
8210 */
8211 } else {
8212 /* just remove the value */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8213 int delta = del_hdr_value(res->buf, &prev, next);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8214 next = prev;
8215 hdr_end += delta;
8216 hdr_next += delta;
8217 cur_hdr->len += delta;
8218 http_msg_move_end(&txn->rsp, delta);
8219 }
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]8220 txn->flags &= ~TX_SCK_MASK;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8221 txn->flags |= TX_SCK_DELETED;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8222 /* and go on with next cookie */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8223 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8224 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_RW)) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8225 /* replace bytes val_beg->val_end with the cookie name associated
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8226 * with this server since we know it.
8227 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8228 delta = buffer_replace2(res->buf, val_beg, val_end, srv->cookie, srv->cklen);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8229 next += delta;
8230 hdr_end += delta;
8231 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8232 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]8233 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8234
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]8235 txn->flags &= ~TX_SCK_MASK;
8236 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8237 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8238 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_PFX)) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8239 /* insert the cookie name associated with this server
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8240 * before existing cookie, and insert a delimiter between them..
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8241 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8242 delta = buffer_replace2(res->buf, val_beg, val_beg, srv->cookie, srv->cklen + 1);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8243 next += delta;
8244 hdr_end += delta;
8245 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8246 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]8247 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8248
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]8249 val_beg[srv->cklen] = COOKIE_DELIM;
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]8250 txn->flags &= ~TX_SCK_MASK;
8251 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8252 }
8253 }
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8254 /* that's done for this cookie, check the next one on the same
8255 * line when next != hdr_end (only if is_cookie2).
8256 */
8257 }
8258 /* check next header */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8259 old_idx = cur_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8260 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8261}
8262
8263
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8264/*
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8265 * Check if response is cacheable or not. Updates s->flags.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8266 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8267void check_response_for_cacheability(struct stream *s, struct channel *rtr)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8268{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8269 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8270 char *p1, *p2;
8271
8272 char *cur_ptr, *cur_end, *cur_next;
8273 int cur_idx;
8274
Willy Tarreau5df51872007-11-25 16:20:08 +0100[diff] [blame]8275 if (!(txn->flags & TX_CACHEABLE))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8276 return;
8277
8278 /* Iterate through the headers.
8279 * we start with the start line.
8280 */
8281 cur_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8282 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8283
8284 while ((cur_idx = txn->hdr_idx.v[cur_idx].next)) {
8285 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8286 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8287
8288 cur_hdr = &txn->hdr_idx.v[cur_idx];
8289 cur_ptr = cur_next;
8290 cur_end = cur_ptr + cur_hdr->len;
8291 cur_next = cur_end + cur_hdr->cr + 1;
8292
8293 /* We have one full header between cur_ptr and cur_end, and the
8294 * next header starts at cur_next. We're only interested in
8295 * "Cookie:" headers.
8296 */
8297
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8298 val = http_header_match2(cur_ptr, cur_end, "Pragma", 6);
8299 if (val) {
8300 if ((cur_end - (cur_ptr + val) >= 8) &&
8301 strncasecmp(cur_ptr + val, "no-cache", 8) == 0) {
8302 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
8303 return;
8304 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8305 }
8306
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8307 val = http_header_match2(cur_ptr, cur_end, "Cache-control", 13);
8308 if (!val)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8309 continue;
8310
8311 /* OK, right now we know we have a cache-control header at cur_ptr */
8312
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8313 p1 = cur_ptr + val; /* first non-space char after 'cache-control:' */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8314
8315 if (p1 >= cur_end) /* no more info */
8316 continue;
8317
8318 /* p1 is at the beginning of the value */
8319 p2 = p1;
8320
Willy Tarreau8f8e6452007-06-17 21:51:38 +0200[diff] [blame]8321 while (p2 < cur_end && *p2 != '=' && *p2 != ',' && !isspace((unsigned char)*p2))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8322 p2++;
8323
8324 /* we have a complete value between p1 and p2 */
8325 if (p2 < cur_end && *p2 == '=') {
8326 /* we have something of the form no-cache="set-cookie" */
8327 if ((cur_end - p1 >= 21) &&
8328 strncasecmp(p1, "no-cache=\"set-cookie", 20) == 0
8329 && (p1[20] == '"' || p1[20] == ','))
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8330 txn->flags &= ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8331 continue;
8332 }
8333
8334 /* OK, so we know that either p2 points to the end of string or to a comma */
8335 if (((p2 - p1 == 7) && strncasecmp(p1, "private", 7) == 0) ||
Willy Tarreau5b15f902013-07-04 12:46:56 +0200[diff] [blame]8336 ((p2 - p1 == 8) && strncasecmp(p1, "no-cache", 8) == 0) ||
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8337 ((p2 - p1 == 8) && strncasecmp(p1, "no-store", 8) == 0) ||
8338 ((p2 - p1 == 9) && strncasecmp(p1, "max-age=0", 9) == 0) ||
8339 ((p2 - p1 == 10) && strncasecmp(p1, "s-maxage=0", 10) == 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 return;
8342 }
8343
8344 if ((p2 - p1 == 6) && strncasecmp(p1, "public", 6) == 0) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8345 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8346 continue;
8347 }
8348 }
8349}
8350
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8351
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8352/*
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]8353 * 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]8354 * for the current backend.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8355 *
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]8356 * 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]8357 * uri_auth field is valid.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8358 *
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]8359 * Returns 1 if stats should be provided, otherwise 0.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8360 */
Willy Tarreau295a8372011-03-10 11:25:07 +0100[diff] [blame]8361int stats_check_uri(struct stream_interface *si, struct http_txn *txn, struct proxy *backend)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8362{
8363 struct uri_auth *uri_auth = backend->uri_auth;
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]8364 struct http_msg *msg = &txn->req;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8365 const char *uri = msg->chn->buf->p+ msg->sl.rq.u;
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8366
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]8367 if (!uri_auth)
8368 return 0;
8369
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]8370 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]8371 return 0;
8372
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]8373 /* check URI size */
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]8374 if (uri_auth->uri_len > msg->sl.rq.u_l)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8375 return 0;
8376
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]8377 if (memcmp(uri, uri_auth->uri_prefix, uri_auth->uri_len) != 0)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8378 return 0;
8379
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8380 return 1;
8381}
8382
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8383/*
8384 * Capture a bad request or response and archive it in the proxy's structure.
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8385 * By default it tries to report the error position as msg->err_pos. However if
8386 * this one is not set, it will then report msg->next, which is the last known
8387 * parsing point. The function is able to deal with wrapping buffers. It always
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8388 * displays buffers as a contiguous area starting at buf->p.
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8389 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8390void http_capture_bad_message(struct error_snapshot *es, struct stream *s,
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]8391 struct http_msg *msg,
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]8392 enum ht_state state, struct proxy *other_end)
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8393{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8394 struct session *sess = strm_sess(s);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8395 struct channel *chn = msg->chn;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8396 int len1, len2;
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]8397
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]8398 es->len = MIN(chn->buf->i, global.tune.bufsize);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8399 len1 = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8400 len1 = MIN(len1, es->len);
8401 len2 = es->len - len1; /* remaining data if buffer wraps */
8402
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]8403 if (!es->buf)
8404 es->buf = malloc(global.tune.bufsize);
8405
8406 if (es->buf) {
8407 memcpy(es->buf, chn->buf->p, len1);
8408 if (len2)
8409 memcpy(es->buf + len1, chn->buf->data, len2);
8410 }
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]8411
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8412 if (msg->err_pos >= 0)
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8413 es->pos = msg->err_pos;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]8414 else
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8415 es->pos = msg->next;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]8416
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8417 es->when = date; // user-visible date
8418 es->sid = s->uniq_id;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]8419 es->srv = objt_server(s->target);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8420 es->oe = other_end;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8421 if (objt_conn(sess->origin))
8422 es->src = __objt_conn(sess->origin)->addr.from;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]8423 else
8424 memset(&es->src, 0, sizeof(es->src));
8425
Willy Tarreau078272e2010-12-12 12:46:33 +0100[diff] [blame]8426 es->state = state;
Willy Tarreau10479e42010-12-12 14:00:34 +0100[diff] [blame]8427 es->ev_id = error_snapshot_id++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8428 es->b_flags = chn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]8429 es->s_flags = s->flags;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8430 es->t_flags = s->txn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]8431 es->m_flags = msg->flags;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8432 es->b_out = chn->buf->o;
8433 es->b_wrap = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8434 es->b_tot = chn->total;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]8435 es->m_clen = msg->chunk_len;
8436 es->m_blen = msg->body_len;
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8437}
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8438
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8439/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
8440 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
8441 * performed over the whole headers. Otherwise it must contain a valid header
8442 * context, initialised with ctx->idx=0 for the first lookup in a series. If
8443 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
8444 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
8445 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8446 * -1. The value fetch stops at commas, so this function is suited for use with
8447 * list headers.
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8448 * The return value is 0 if nothing was found, or non-zero otherwise.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8449 */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]8450unsigned int http_get_hdr(const struct http_msg *msg, const char *hname, int hlen,
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8451 struct hdr_idx *idx, int occ,
8452 struct hdr_ctx *ctx, char **vptr, int *vlen)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8453{
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8454 struct hdr_ctx local_ctx;
8455 char *ptr_hist[MAX_HDR_HISTORY];
8456 int len_hist[MAX_HDR_HISTORY];
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8457 unsigned int hist_ptr;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8458 int found;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8459
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8460 if (!ctx) {
8461 local_ctx.idx = 0;
8462 ctx = &local_ctx;
8463 }
8464
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8465 if (occ >= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8466 /* search from the beginning */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8467 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8468 occ--;
8469 if (occ <= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8470 *vptr = ctx->line + ctx->val;
8471 *vlen = ctx->vlen;
8472 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8473 }
8474 }
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8475 return 0;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8476 }
8477
8478 /* negative occurrence, we scan all the list then walk back */
8479 if (-occ > MAX_HDR_HISTORY)
8480 return 0;
8481
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8482 found = hist_ptr = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8483 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8484 ptr_hist[hist_ptr] = ctx->line + ctx->val;
8485 len_hist[hist_ptr] = ctx->vlen;
8486 if (++hist_ptr >= MAX_HDR_HISTORY)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8487 hist_ptr = 0;
8488 found++;
8489 }
8490 if (-occ > found)
8491 return 0;
8492 /* 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]8493 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
8494 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
8495 * to remain in the 0..9 range.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8496 */
Willy Tarreau67dad272013-06-12 22:27:44 +0200[diff] [blame]8497 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8498 if (hist_ptr >= MAX_HDR_HISTORY)
8499 hist_ptr -= MAX_HDR_HISTORY;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8500 *vptr = ptr_hist[hist_ptr];
8501 *vlen = len_hist[hist_ptr];
8502 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8503}
8504
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8505/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
8506 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
8507 * performed over the whole headers. Otherwise it must contain a valid header
8508 * context, initialised with ctx->idx=0 for the first lookup in a series. If
8509 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
8510 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
8511 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
8512 * -1. This function differs from http_get_hdr() in that it only returns full
8513 * line header values and does not stop at commas.
8514 * The return value is 0 if nothing was found, or non-zero otherwise.
8515 */
8516unsigned int http_get_fhdr(const struct http_msg *msg, const char *hname, int hlen,
8517 struct hdr_idx *idx, int occ,
8518 struct hdr_ctx *ctx, char **vptr, int *vlen)
8519{
8520 struct hdr_ctx local_ctx;
8521 char *ptr_hist[MAX_HDR_HISTORY];
8522 int len_hist[MAX_HDR_HISTORY];
8523 unsigned int hist_ptr;
8524 int found;
8525
8526 if (!ctx) {
8527 local_ctx.idx = 0;
8528 ctx = &local_ctx;
8529 }
8530
8531 if (occ >= 0) {
8532 /* search from the beginning */
8533 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
8534 occ--;
8535 if (occ <= 0) {
8536 *vptr = ctx->line + ctx->val;
8537 *vlen = ctx->vlen;
8538 return 1;
8539 }
8540 }
8541 return 0;
8542 }
8543
8544 /* negative occurrence, we scan all the list then walk back */
8545 if (-occ > MAX_HDR_HISTORY)
8546 return 0;
8547
8548 found = hist_ptr = 0;
8549 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
8550 ptr_hist[hist_ptr] = ctx->line + ctx->val;
8551 len_hist[hist_ptr] = ctx->vlen;
8552 if (++hist_ptr >= MAX_HDR_HISTORY)
8553 hist_ptr = 0;
8554 found++;
8555 }
8556 if (-occ > found)
8557 return 0;
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]8558
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8559 /* 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]8560 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
8561 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
8562 * to remain in the 0..9 range.
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8563 */
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]8564 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8565 if (hist_ptr >= MAX_HDR_HISTORY)
8566 hist_ptr -= MAX_HDR_HISTORY;
8567 *vptr = ptr_hist[hist_ptr];
8568 *vlen = len_hist[hist_ptr];
8569 return 1;
8570}
8571
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]8572/*
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]8573 * Print a debug line with a header. Always stop at the first CR or LF char,
8574 * so it is safe to pass it a full buffer if needed. If <err> is not NULL, an
8575 * arrow is printed after the line which contains the pointer.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8576 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8577void debug_hdr(const char *dir, struct stream *s, const char *start, const char *end)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8578{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8579 struct session *sess = strm_sess(s);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]8580 int max;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8581
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8582 chunk_printf(&trash, "%08x:%s.%s[%04x:%04x]: ", s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]8583 dir,
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8584 objt_conn(sess->origin) ? (unsigned short)objt_conn(sess->origin)->t.sock.fd : -1,
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]8585 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]8586
8587 for (max = 0; start + max < end; max++)
8588 if (start[max] == '\r' || start[max] == '\n')
8589 break;
8590
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]8591 UBOUND(max, trash.size - trash.len - 3);
8592 trash.len += strlcpy2(trash.str + trash.len, start, max + 1);
8593 trash.str[trash.len++] = '\n';
Willy Tarreau89efaed2013-12-13 15:14:55 +0100[diff] [blame]8594 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8595}
8596
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8597
8598/* Allocate a new HTTP transaction for stream <s> unless there is one already.
8599 * The hdr_idx is allocated as well. In case of allocation failure, everything
8600 * allocated is freed and NULL is returned. Otherwise the new transaction is
8601 * assigned to the stream and returned.
8602 */
8603struct http_txn *http_alloc_txn(struct stream *s)
8604{
8605 struct http_txn *txn = s->txn;
8606
8607 if (txn)
8608 return txn;
8609
8610 txn = pool_alloc2(pool2_http_txn);
8611 if (!txn)
8612 return txn;
8613
8614 txn->hdr_idx.size = global.tune.max_http_hdr;
8615 txn->hdr_idx.v = pool_alloc2(pool2_hdr_idx);
8616 if (!txn->hdr_idx.v) {
8617 pool_free2(pool2_http_txn, txn);
8618 return NULL;
8619 }
8620
8621 s->txn = txn;
8622 return txn;
8623}
8624
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8625void http_txn_reset_req(struct http_txn *txn)
8626{
8627 txn->req.flags = 0;
8628 txn->req.sol = txn->req.eol = txn->req.eoh = 0; /* relative to the buffer */
8629 txn->req.next = 0;
8630 txn->req.chunk_len = 0LL;
8631 txn->req.body_len = 0LL;
8632 txn->req.msg_state = HTTP_MSG_RQBEFORE; /* at the very beginning of the request */
8633}
8634
8635void http_txn_reset_res(struct http_txn *txn)
8636{
8637 txn->rsp.flags = 0;
8638 txn->rsp.sol = txn->rsp.eol = txn->rsp.eoh = 0; /* relative to the buffer */
8639 txn->rsp.next = 0;
8640 txn->rsp.chunk_len = 0LL;
8641 txn->rsp.body_len = 0LL;
8642 txn->rsp.msg_state = HTTP_MSG_RPBEFORE; /* at the very beginning of the response */
8643}
8644
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8645/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8646 * Initialize a new HTTP transaction for stream <s>. It is assumed that all
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8647 * the required fields are properly allocated and that we only need to (re)init
8648 * them. This should be used before processing any new request.
8649 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8650void http_init_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8651{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8652 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8653 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8654
8655 txn->flags = 0;
8656 txn->status = -1;
8657
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]8658 txn->cookie_first_date = 0;
8659 txn->cookie_last_date = 0;
8660
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8661 txn->srv_cookie = NULL;
8662 txn->cli_cookie = NULL;
8663 txn->uri = NULL;
8664
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8665 http_txn_reset_req(txn);
8666 http_txn_reset_res(txn);
8667
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8668 txn->req.chn = &s->req;
8669 txn->rsp.chn = &s->res;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8670
8671 txn->auth.method = HTTP_AUTH_UNKNOWN;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8672
8673 txn->req.err_pos = txn->rsp.err_pos = -2; /* block buggy requests/responses */
8674 if (fe->options2 & PR_O2_REQBUG_OK)
8675 txn->req.err_pos = -1; /* let buggy requests pass */
8676
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8677 if (txn->hdr_idx.v)
8678 hdr_idx_init(&txn->hdr_idx);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]8679
8680 vars_init(&s->vars_txn, SCOPE_TXN);
8681 vars_init(&s->vars_reqres, SCOPE_REQ);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8682}
8683
8684/* to be used at the end of a transaction */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8685void http_end_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8686{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8687 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8688 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8689
8690 /* these ones will have been dynamically allocated */
8691 pool_free2(pool2_requri, txn->uri);
8692 pool_free2(pool2_capture, txn->cli_cookie);
8693 pool_free2(pool2_capture, txn->srv_cookie);
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]8694 pool_free2(pool2_uniqueid, s->unique_id);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8695
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]8696 s->unique_id = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8697 txn->uri = NULL;
8698 txn->srv_cookie = NULL;
8699 txn->cli_cookie = NULL;
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8700
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8701 if (s->req_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8702 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8703 for (h = fe->req_cap; h; h = h->next)
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8704 pool_free2(h->pool, s->req_cap[h->index]);
8705 memset(s->req_cap, 0, fe->nb_req_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8706 }
8707
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8708 if (s->res_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8709 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8710 for (h = fe->rsp_cap; h; h = h->next)
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8711 pool_free2(h->pool, s->res_cap[h->index]);
8712 memset(s->res_cap, 0, fe->nb_rsp_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8713 }
8714
Willy Tarreau6204cd92016-03-10 16:33:04 +0100[diff] [blame]8715 vars_prune(&s->vars_txn, s->sess, s);
8716 vars_prune(&s->vars_reqres, s->sess, s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8717}
8718
8719/* to be used at the end of a transaction to prepare a new one */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8720void http_reset_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8721{
8722 http_end_txn(s);
8723 http_init_txn(s);
8724
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]8725 /* reinitialise the current rule list pointer to NULL. We are sure that
8726 * any rulelist match the NULL pointer.
8727 */
8728 s->current_rule_list = NULL;
8729
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8730 s->be = strm_fe(s);
8731 s->logs.logwait = strm_fe(s)->to_log;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]8732 s->logs.level = 0;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8733 stream_del_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]8734 s->target = NULL;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8735 /* re-init store persistence */
8736 s->store_count = 0;
Willy Tarreau1f0da242014-01-25 11:01:50 +0100[diff] [blame]8737 s->uniq_id = global.req_count++;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8738
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8739 s->pend_pos = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8740
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8741 s->req.flags |= CF_READ_DONTWAIT; /* one read is usually enough */
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8742
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8743 /* We must trim any excess data from the response buffer, because we
8744 * may have blocked an invalid response from a server that we don't
8745 * want to accidentely forward once we disable the analysers, nor do
8746 * we want those data to come along with next response. A typical
8747 * example of such data would be from a buggy server responding to
8748 * a HEAD with some data, or sending more than the advertised
8749 * content-length.
8750 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8751 if (unlikely(s->res.buf->i))
8752 s->res.buf->i = 0;
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8753
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8754 s->req.rto = strm_fe(s)->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8755 s->req.wto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8756
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8757 s->res.rto = TICK_ETERNITY;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8758 s->res.wto = strm_fe(s)->timeout.client;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8759
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8760 s->req.rex = TICK_ETERNITY;
8761 s->req.wex = TICK_ETERNITY;
8762 s->req.analyse_exp = TICK_ETERNITY;
8763 s->res.rex = TICK_ETERNITY;
8764 s->res.wex = TICK_ETERNITY;
8765 s->res.analyse_exp = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8766}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8767
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8768void free_http_res_rules(struct list *r)
8769{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8770 struct act_rule *tr, *pr;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8771
8772 list_for_each_entry_safe(pr, tr, r, list) {
8773 LIST_DEL(&pr->list);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8774 regex_free(&pr->arg.hdr_add.re);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8775 free(pr);
8776 }
8777}
8778
8779void free_http_req_rules(struct list *r)
8780{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8781 struct act_rule *tr, *pr;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8782
8783 list_for_each_entry_safe(pr, tr, r, list) {
8784 LIST_DEL(&pr->list);
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8785 if (pr->action == ACT_HTTP_REQ_AUTH)
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8786 free(pr->arg.auth.realm);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8787
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8788 regex_free(&pr->arg.hdr_add.re);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8789 free(pr);
8790 }
8791}
8792
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8793/* parse an "http-request" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8794struct 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]8795{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8796 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8797 struct action_kw *custom = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8798 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8799 char *error;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8800
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]8801 rule = calloc(1, sizeof(*rule));
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8802 if (!rule) {
8803 Alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8804 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8805 }
8806
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8807 rule->deny_status = HTTP_ERR_403;
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8808 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8809 rule->action = ACT_ACTION_ALLOW;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8810 cur_arg = 1;
Willy Tarreau5bd67592014-04-28 22:00:46 +0200[diff] [blame]8811 } else if (!strcmp(args[0], "deny") || !strcmp(args[0], "block")) {
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8812 int code;
8813 int hc;
8814
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8815 rule->action = ACT_ACTION_DENY;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8816 cur_arg = 1;
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8817 if (strcmp(args[cur_arg], "deny_status") == 0) {
8818 cur_arg++;
8819 if (!args[cur_arg]) {
8820 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing status code.\n",
8821 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
8822 goto out_err;
8823 }
8824
8825 code = atol(args[cur_arg]);
8826 cur_arg++;
8827 for (hc = 0; hc < HTTP_ERR_SIZE; hc++) {
8828 if (http_err_codes[hc] == code) {
8829 rule->deny_status = hc;
8830 break;
8831 }
8832 }
8833
8834 if (hc >= HTTP_ERR_SIZE) {
8835 Warning("parsing [%s:%d] : status code %d not handled, using default code 403.\n",
8836 file, linenum, code);
8837 }
8838 }
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]8839 } else if (!strcmp(args[0], "tarpit")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8840 rule->action = ACT_HTTP_REQ_TARPIT;
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]8841 cur_arg = 1;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8842 } else if (!strcmp(args[0], "auth")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8843 rule->action = ACT_HTTP_REQ_AUTH;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8844 cur_arg = 1;
8845
8846 while(*args[cur_arg]) {
8847 if (!strcmp(args[cur_arg], "realm")) {
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8848 rule->arg.auth.realm = strdup(args[cur_arg + 1]);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8849 cur_arg+=2;
8850 continue;
8851 } else
8852 break;
8853 }
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8854 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8855 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8856 cur_arg = 1;
8857
8858 if (!*args[cur_arg] ||
8859 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8860 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer value).\n",
8861 file, linenum, args[0]);
8862 goto out_err;
8863 }
8864 rule->arg.nice = atoi(args[cur_arg]);
8865 if (rule->arg.nice < -1024)
8866 rule->arg.nice = -1024;
8867 else if (rule->arg.nice > 1024)
8868 rule->arg.nice = 1024;
8869 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8870 } else if (!strcmp(args[0], "set-tos")) {
8871#ifdef IP_TOS
8872 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8873 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8874 cur_arg = 1;
8875
8876 if (!*args[cur_arg] ||
8877 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8878 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8879 file, linenum, args[0]);
8880 goto out_err;
8881 }
8882
8883 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8884 if (err && *err != '\0') {
8885 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8886 file, linenum, err, args[0]);
8887 goto out_err;
8888 }
8889 cur_arg++;
8890#else
8891 Alert("parsing [%s:%d]: 'http-request %s' is not supported on this platform (IP_TOS undefined).\n", file, linenum, args[0]);
8892 goto out_err;
8893#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8894 } else if (!strcmp(args[0], "set-mark")) {
8895#ifdef SO_MARK
8896 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8897 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8898 cur_arg = 1;
8899
8900 if (!*args[cur_arg] ||
8901 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8902 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8903 file, linenum, args[0]);
8904 goto out_err;
8905 }
8906
8907 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8908 if (err && *err != '\0') {
8909 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8910 file, linenum, err, args[0]);
8911 goto out_err;
8912 }
8913 cur_arg++;
8914 global.last_checks |= LSTCHK_NETADM;
8915#else
8916 Alert("parsing [%s:%d]: 'http-request %s' is not supported on this platform (SO_MARK undefined).\n", file, linenum, args[0]);
8917 goto out_err;
8918#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8919 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8920 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8921 cur_arg = 1;
8922
8923 if (!*args[cur_arg] ||
8924 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8925 bad_log_level:
8926 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (log level name or 'silent').\n",
8927 file, linenum, args[0]);
8928 goto out_err;
8929 }
8930 if (strcmp(args[cur_arg], "silent") == 0)
8931 rule->arg.loglevel = -1;
8932 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
8933 goto bad_log_level;
8934 cur_arg++;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8935 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8936 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8937 cur_arg = 1;
8938
Willy Tarreau8d1c5162013-04-03 14:13:58 +0200[diff] [blame]8939 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8940 (*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]8941 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8942 file, linenum, args[0]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8943 goto out_err;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8944 }
8945
8946 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8947 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8948 LIST_INIT(&rule->arg.hdr_add.fmt);
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]8949
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8950 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]8951 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]8952 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
8953 file, linenum);
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8954 free(proxy->conf.lfs_file);
8955 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8956 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8957 cur_arg += 2;
Willy Tarreaub8543922014-06-17 18:58:26 +0200[diff] [blame]8958 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8959 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8960 cur_arg = 1;
8961
8962 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann92df3702014-06-24 11:10:00 +0200[diff] [blame]8963 (*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]8964 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 3 arguments.\n",
8965 file, linenum, args[0]);
8966 goto out_err;
8967 }
8968
8969 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8970 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8971 LIST_INIT(&rule->arg.hdr_add.fmt);
8972
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8973 error = NULL;
8974 if (!regex_comp(args[cur_arg + 1], &rule->arg.hdr_add.re, 1, 1, &error)) {
8975 Alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8976 args[cur_arg + 1], error);
8977 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8978 goto out_err;
8979 }
8980
8981 proxy->conf.args.ctx = ARGC_HRQ;
8982 parse_logformat_string(args[cur_arg + 2], proxy, &rule->arg.hdr_add.fmt, LOG_OPT_HTTP,
8983 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
8984 file, linenum);
8985
8986 free(proxy->conf.lfs_file);
8987 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8988 proxy->conf.lfs_line = proxy->conf.args.line;
8989 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8990 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8991 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8992 cur_arg = 1;
8993
8994 if (!*args[cur_arg] ||
8995 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8996 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8997 file, linenum, args[0]);
8998 goto out_err;
8999 }
9000
9001 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9002 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9003
9004 proxy->conf.args.ctx = ARGC_HRQ;
9005 free(proxy->conf.lfs_file);
9006 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9007 proxy->conf.lfs_line = proxy->conf.args.line;
9008 cur_arg += 1;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]9009 } else if (strncmp(args[0], "track-sc", 8) == 0 &&
9010 args[0][9] == '\0' && args[0][8] >= '0' &&
Willy Tarreaue1cfc1f2014-10-17 11:53:05 +0200[diff] [blame]9011 args[0][8] < '0' + MAX_SESS_STKCTR) { /* track-sc 0..9 */
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]9012 struct sample_expr *expr;
9013 unsigned int where;
9014 char *err = NULL;
9015
9016 cur_arg = 1;
9017 proxy->conf.args.ctx = ARGC_TRK;
9018
9019 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
9020 if (!expr) {
9021 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
9022 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
9023 free(err);
9024 goto out_err;
9025 }
9026
9027 where = 0;
9028 if (proxy->cap & PR_CAP_FE)
9029 where |= SMP_VAL_FE_HRQ_HDR;
9030 if (proxy->cap & PR_CAP_BE)
9031 where |= SMP_VAL_BE_HRQ_HDR;
9032
9033 if (!(expr->fetch->val & where)) {
9034 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule :"
9035 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
9036 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
9037 args[cur_arg-1], sample_src_names(expr->fetch->use));
9038 free(expr);
9039 goto out_err;
9040 }
9041
9042 if (strcmp(args[cur_arg], "table") == 0) {
9043 cur_arg++;
9044 if (!args[cur_arg]) {
9045 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing table name.\n",
9046 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
9047 free(expr);
9048 goto out_err;
9049 }
9050 /* we copy the table name for now, it will be resolved later */
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]9051 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]9052 cur_arg++;
9053 }
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]9054 rule->arg.trk_ctr.expr = expr;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9055 rule->action = ACT_ACTION_TRK_SC0 + args[0][8] - '0';
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9056 } else if (strcmp(args[0], "redirect") == 0) {
9057 struct redirect_rule *redir;
Willy Tarreau6d4890c2013-11-18 18:04:25 +0100[diff] [blame]9058 char *errmsg = NULL;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9059
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9060 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]9061 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
9062 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
9063 goto out_err;
9064 }
9065
9066 /* this redirect rule might already contain a parsed condition which
9067 * we'll pass to the http-request rule.
9068 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9069 rule->action = ACT_HTTP_REDIR;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9070 rule->arg.redir = redir;
9071 rule->cond = redir->cond;
9072 redir->cond = NULL;
9073 cur_arg = 2;
9074 return rule;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9075 } else if (strncmp(args[0], "add-acl", 7) == 0) {
9076 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9077 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9078 /*
9079 * '+ 8' for 'add-acl('
9080 * '- 9' for 'add-acl(' + trailing ')'
9081 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9082 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9083
9084 cur_arg = 1;
9085
9086 if (!*args[cur_arg] ||
9087 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9088 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
9089 file, linenum, args[0]);
9090 goto out_err;
9091 }
9092
9093 LIST_INIT(&rule->arg.map.key);
9094 proxy->conf.args.ctx = ARGC_HRQ;
9095 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9096 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9097 file, linenum);
9098 free(proxy->conf.lfs_file);
9099 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9100 proxy->conf.lfs_line = proxy->conf.args.line;
9101 cur_arg += 1;
9102 } else if (strncmp(args[0], "del-acl", 7) == 0) {
9103 /* http-request del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9104 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9105 /*
9106 * '+ 8' for 'del-acl('
9107 * '- 9' for 'del-acl(' + trailing ')'
9108 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9109 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9110
9111 cur_arg = 1;
9112
9113 if (!*args[cur_arg] ||
9114 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9115 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
9116 file, linenum, args[0]);
9117 goto out_err;
9118 }
9119
9120 LIST_INIT(&rule->arg.map.key);
9121 proxy->conf.args.ctx = ARGC_HRQ;
9122 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9123 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9124 file, linenum);
9125 free(proxy->conf.lfs_file);
9126 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9127 proxy->conf.lfs_line = proxy->conf.args.line;
9128 cur_arg += 1;
9129 } else if (strncmp(args[0], "del-map", 7) == 0) {
9130 /* http-request del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9131 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9132 /*
9133 * '+ 8' for 'del-map('
9134 * '- 9' for 'del-map(' + trailing ')'
9135 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9136 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9137
9138 cur_arg = 1;
9139
9140 if (!*args[cur_arg] ||
9141 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9142 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
9143 file, linenum, args[0]);
9144 goto out_err;
9145 }
9146
9147 LIST_INIT(&rule->arg.map.key);
9148 proxy->conf.args.ctx = ARGC_HRQ;
9149 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9150 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9151 file, linenum);
9152 free(proxy->conf.lfs_file);
9153 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9154 proxy->conf.lfs_line = proxy->conf.args.line;
9155 cur_arg += 1;
9156 } else if (strncmp(args[0], "set-map", 7) == 0) {
9157 /* http-request set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9158 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9159 /*
9160 * '+ 8' for 'set-map('
9161 * '- 9' for 'set-map(' + trailing ')'
9162 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9163 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9164
9165 cur_arg = 1;
9166
9167 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9168 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
9169 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
9170 file, linenum, args[0]);
9171 goto out_err;
9172 }
9173
9174 LIST_INIT(&rule->arg.map.key);
9175 LIST_INIT(&rule->arg.map.value);
9176 proxy->conf.args.ctx = ARGC_HRQ;
9177
9178 /* key pattern */
9179 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9180 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9181 file, linenum);
9182
9183 /* value pattern */
9184 parse_logformat_string(args[cur_arg + 1], proxy, &rule->arg.map.value, LOG_OPT_HTTP,
9185 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9186 file, linenum);
9187 free(proxy->conf.lfs_file);
9188 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9189 proxy->conf.lfs_line = proxy->conf.args.line;
9190
9191 cur_arg += 2;
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]9192 } else if (strncmp(args[0], "set-src", 7) == 0) {
9193 struct sample_expr *expr;
9194 unsigned int where;
9195 char *err = NULL;
9196
9197 cur_arg = 1;
9198 proxy->conf.args.ctx = ARGC_HRQ;
9199
9200 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
9201 if (!expr) {
9202 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
9203 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
9204 free(err);
9205 goto out_err;
9206 }
9207
9208 where = 0;
9209 if (proxy->cap & PR_CAP_FE)
9210 where |= SMP_VAL_FE_HRQ_HDR;
9211 if (proxy->cap & PR_CAP_BE)
9212 where |= SMP_VAL_BE_HRQ_HDR;
9213
9214 if (!(expr->fetch->val & where)) {
9215 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule :"
9216 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
9217 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
9218 args[cur_arg-1], sample_src_names(expr->fetch->use));
9219 free(expr);
9220 goto out_err;
9221 }
9222
Thierry FOURNIERa002dc92015-07-31 08:50:51 +0200[diff] [blame]9223 rule->arg.expr = expr;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9224 rule->action = ACT_HTTP_REQ_SET_SRC;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9225 } else if (((custom = action_http_req_custom(args[0])) != NULL)) {
9226 char *errmsg = NULL;
9227 cur_arg = 1;
9228 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]9229 rule->from = ACT_F_HTTP_REQ;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]9230 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]9231 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9232 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
9233 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
9234 free(errmsg);
9235 goto out_err;
9236 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9237 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9238 action_build_list(&http_req_keywords.list, &trash);
9239 Alert("parsing [%s:%d]: 'http-request' expects 'allow', 'deny', 'auth', 'redirect', "
9240 "'tarpit', 'add-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
9241 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', "
9242 "'set-src'%s%s, but got '%s'%s.\n",
9243 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9244 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9245 }
9246
9247 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
9248 struct acl_cond *cond;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]9249 char *errmsg = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9250
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]9251 if ((cond = build_acl_cond(file, linenum, proxy, args+cur_arg, &errmsg)) == NULL) {
9252 Alert("parsing [%s:%d] : error detected while parsing an 'http-request %s' condition : %s.\n",
9253 file, linenum, args[0], errmsg);
9254 free(errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9255 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9256 }
9257 rule->cond = cond;
9258 }
9259 else if (*args[cur_arg]) {
9260 Alert("parsing [%s:%d]: 'http-request %s' expects 'realm' for 'auth' or"
9261 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
9262 file, linenum, args[0], args[cur_arg]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9263 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9264 }
9265
9266 return rule;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9267 out_err:
9268 free(rule);
9269 return NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9270}
9271
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9272/* parse an "http-respose" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]9273struct 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]9274{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]9275 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]9276 struct action_kw *custom = NULL;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9277 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]9278 char *error;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9279
9280 rule = calloc(1, sizeof(*rule));
9281 if (!rule) {
9282 Alert("parsing [%s:%d]: out of memory.\n", file, linenum);
9283 goto out_err;
9284 }
9285
9286 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9287 rule->action = ACT_ACTION_ALLOW;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9288 cur_arg = 1;
9289 } else if (!strcmp(args[0], "deny")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9290 rule->action = ACT_ACTION_DENY;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9291 cur_arg = 1;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]9292 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9293 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]9294 cur_arg = 1;
9295
9296 if (!*args[cur_arg] ||
9297 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9298 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer value).\n",
9299 file, linenum, args[0]);
9300 goto out_err;
9301 }
9302 rule->arg.nice = atoi(args[cur_arg]);
9303 if (rule->arg.nice < -1024)
9304 rule->arg.nice = -1024;
9305 else if (rule->arg.nice > 1024)
9306 rule->arg.nice = 1024;
9307 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]9308 } else if (!strcmp(args[0], "set-tos")) {
9309#ifdef IP_TOS
9310 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9311 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]9312 cur_arg = 1;
9313
9314 if (!*args[cur_arg] ||
9315 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9316 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
9317 file, linenum, args[0]);
9318 goto out_err;
9319 }
9320
9321 rule->arg.tos = strtol(args[cur_arg], &err, 0);
9322 if (err && *err != '\0') {
9323 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
9324 file, linenum, err, args[0]);
9325 goto out_err;
9326 }
9327 cur_arg++;
9328#else
9329 Alert("parsing [%s:%d]: 'http-response %s' is not supported on this platform (IP_TOS undefined).\n", file, linenum, args[0]);
9330 goto out_err;
9331#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]9332 } else if (!strcmp(args[0], "set-mark")) {
9333#ifdef SO_MARK
9334 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9335 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]9336 cur_arg = 1;
9337
9338 if (!*args[cur_arg] ||
9339 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9340 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
9341 file, linenum, args[0]);
9342 goto out_err;
9343 }
9344
9345 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
9346 if (err && *err != '\0') {
9347 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
9348 file, linenum, err, args[0]);
9349 goto out_err;
9350 }
9351 cur_arg++;
9352 global.last_checks |= LSTCHK_NETADM;
9353#else
9354 Alert("parsing [%s:%d]: 'http-response %s' is not supported on this platform (SO_MARK undefined).\n", file, linenum, args[0]);
9355 goto out_err;
9356#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9357 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9358 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9359 cur_arg = 1;
9360
9361 if (!*args[cur_arg] ||
9362 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9363 bad_log_level:
9364 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (log level name or 'silent').\n",
9365 file, linenum, args[0]);
9366 goto out_err;
9367 }
9368 if (strcmp(args[cur_arg], "silent") == 0)
9369 rule->arg.loglevel = -1;
9370 else if ((rule->arg.loglevel = get_log_level(args[cur_arg] + 1)) == 0)
9371 goto bad_log_level;
9372 cur_arg++;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9373 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9374 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9375 cur_arg = 1;
9376
9377 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9378 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
9379 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
9380 file, linenum, args[0]);
9381 goto out_err;
9382 }
9383
9384 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9385 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9386 LIST_INIT(&rule->arg.hdr_add.fmt);
9387
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]9388 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]9389 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]9390 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR,
9391 file, linenum);
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9392 free(proxy->conf.lfs_file);
9393 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9394 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9395 cur_arg += 2;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9396 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9397 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9398 cur_arg = 1;
9399
9400 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann12cb00b2014-08-08 17:29:06 +0200[diff] [blame]9401 (*args[cur_arg+3] && strcmp(args[cur_arg+3], "if") != 0 && strcmp(args[cur_arg+3], "unless") != 0)) {
9402 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 3 arguments.\n",
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9403 file, linenum, args[0]);
9404 goto out_err;
9405 }
9406
9407 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9408 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9409 LIST_INIT(&rule->arg.hdr_add.fmt);
9410
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]9411 error = NULL;
9412 if (!regex_comp(args[cur_arg + 1], &rule->arg.hdr_add.re, 1, 1, &error)) {
9413 Alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
9414 args[cur_arg + 1], error);
9415 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9416 goto out_err;
9417 }
9418
9419 proxy->conf.args.ctx = ARGC_HRQ;
9420 parse_logformat_string(args[cur_arg + 2], proxy, &rule->arg.hdr_add.fmt, LOG_OPT_HTTP,
9421 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR,
9422 file, linenum);
9423
9424 free(proxy->conf.lfs_file);
9425 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9426 proxy->conf.lfs_line = proxy->conf.args.line;
9427 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9428 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9429 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9430 cur_arg = 1;
9431
9432 if (!*args[cur_arg] ||
9433 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9434 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9435 file, linenum, args[0]);
9436 goto out_err;
9437 }
9438
9439 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9440 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9441
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9442 proxy->conf.args.ctx = ARGC_HRS;
9443 free(proxy->conf.lfs_file);
9444 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9445 proxy->conf.lfs_line = proxy->conf.args.line;
9446 cur_arg += 1;
9447 } else if (strncmp(args[0], "add-acl", 7) == 0) {
9448 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9449 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9450 /*
9451 * '+ 8' for 'add-acl('
9452 * '- 9' for 'add-acl(' + trailing ')'
9453 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9454 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9455
9456 cur_arg = 1;
9457
9458 if (!*args[cur_arg] ||
9459 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9460 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9461 file, linenum, args[0]);
9462 goto out_err;
9463 }
9464
9465 LIST_INIT(&rule->arg.map.key);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9466 proxy->conf.args.ctx = ARGC_HRS;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9467 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9468 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR,
9469 file, linenum);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9470 free(proxy->conf.lfs_file);
9471 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9472 proxy->conf.lfs_line = proxy->conf.args.line;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9473
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9474 cur_arg += 1;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9475 } else if (strncmp(args[0], "del-acl", 7) == 0) {
9476 /* http-response del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9477 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9478 /*
9479 * '+ 8' for 'del-acl('
9480 * '- 9' for 'del-acl(' + trailing ')'
9481 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9482 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9483
9484 cur_arg = 1;
9485
9486 if (!*args[cur_arg] ||
9487 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9488 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9489 file, linenum, args[0]);
9490 goto out_err;
9491 }
9492
9493 LIST_INIT(&rule->arg.map.key);
9494 proxy->conf.args.ctx = ARGC_HRS;
9495 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9496 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR,
9497 file, linenum);
9498 free(proxy->conf.lfs_file);
9499 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9500 proxy->conf.lfs_line = proxy->conf.args.line;
9501 cur_arg += 1;
9502 } else if (strncmp(args[0], "del-map", 7) == 0) {
9503 /* http-response del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9504 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9505 /*
9506 * '+ 8' for 'del-map('
9507 * '- 9' for 'del-map(' + trailing ')'
9508 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9509 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9510
9511 cur_arg = 1;
9512
9513 if (!*args[cur_arg] ||
9514 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9515 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9516 file, linenum, args[0]);
9517 goto out_err;
9518 }
9519
9520 LIST_INIT(&rule->arg.map.key);
9521 proxy->conf.args.ctx = ARGC_HRS;
9522 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9523 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR,
9524 file, linenum);
9525 free(proxy->conf.lfs_file);
9526 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9527 proxy->conf.lfs_line = proxy->conf.args.line;
9528 cur_arg += 1;
9529 } else if (strncmp(args[0], "set-map", 7) == 0) {
9530 /* http-response set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9531 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9532 /*
9533 * '+ 8' for 'set-map('
9534 * '- 9' for 'set-map(' + trailing ')'
9535 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9536 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9537
9538 cur_arg = 1;
9539
9540 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9541 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
9542 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
9543 file, linenum, args[0]);
9544 goto out_err;
9545 }
9546
9547 LIST_INIT(&rule->arg.map.key);
9548 LIST_INIT(&rule->arg.map.value);
9549
9550 proxy->conf.args.ctx = ARGC_HRS;
9551
9552 /* key pattern */
9553 parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
9554 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR,
9555 file, linenum);
9556
9557 /* value pattern */
9558 parse_logformat_string(args[cur_arg + 1], proxy, &rule->arg.map.value, LOG_OPT_HTTP,
9559 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR,
9560 file, linenum);
9561
9562 free(proxy->conf.lfs_file);
9563 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9564 proxy->conf.lfs_line = proxy->conf.args.line;
9565
9566 cur_arg += 2;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9567 } else if (strcmp(args[0], "redirect") == 0) {
9568 struct redirect_rule *redir;
9569 char *errmsg = NULL;
9570
9571 if ((redir = http_parse_redirect_rule(file, linenum, proxy, (const char **)args + 1, &errmsg, 1, 1)) == NULL) {
9572 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9573 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
9574 goto out_err;
9575 }
9576
9577 /* this redirect rule might already contain a parsed condition which
9578 * we'll pass to the http-request rule.
9579 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9580 rule->action = ACT_HTTP_REDIR;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9581 rule->arg.redir = redir;
9582 rule->cond = redir->cond;
9583 redir->cond = NULL;
9584 cur_arg = 2;
9585 return rule;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9586 } else if (((custom = action_http_res_custom(args[0])) != NULL)) {
9587 char *errmsg = NULL;
9588 cur_arg = 1;
9589 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]9590 rule->from = ACT_F_HTTP_RES;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]9591 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]9592 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9593 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9594 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
9595 free(errmsg);
9596 goto out_err;
9597 }
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9598 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9599 action_build_list(&http_res_keywords.list, &trash);
9600 Alert("parsing [%s:%d]: 'http-response' expects 'allow', 'deny', 'redirect', "
9601 "'add-header', 'del-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
9602 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', "
9603 "'set-src'%s%s, but got '%s'%s.\n",
9604 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9605 goto out_err;
9606 }
9607
9608 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
9609 struct acl_cond *cond;
9610 char *errmsg = NULL;
9611
9612 if ((cond = build_acl_cond(file, linenum, proxy, args+cur_arg, &errmsg)) == NULL) {
9613 Alert("parsing [%s:%d] : error detected while parsing an 'http-response %s' condition : %s.\n",
9614 file, linenum, args[0], errmsg);
9615 free(errmsg);
9616 goto out_err;
9617 }
9618 rule->cond = cond;
9619 }
9620 else if (*args[cur_arg]) {
9621 Alert("parsing [%s:%d]: 'http-response %s' expects"
9622 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
9623 file, linenum, args[0], args[cur_arg]);
9624 goto out_err;
9625 }
9626
9627 return rule;
9628 out_err:
9629 free(rule);
9630 return NULL;
9631}
9632
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9633/* Parses a redirect rule. Returns the redirect rule on success or NULL on error,
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9634 * 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]9635 * dynamic log-format rule instead of a static string. Parameter <dir> indicates
9636 * the direction of the rule, and equals 0 for request, non-zero for responses.
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9637 */
9638struct redirect_rule *http_parse_redirect_rule(const char *file, int linenum, struct proxy *curproxy,
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9639 const char **args, char **errmsg, int use_fmt, int dir)
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9640{
9641 struct redirect_rule *rule;
9642 int cur_arg;
9643 int type = REDIRECT_TYPE_NONE;
9644 int code = 302;
9645 const char *destination = NULL;
9646 const char *cookie = NULL;
9647 int cookie_set = 0;
9648 unsigned int flags = REDIRECT_FLAG_NONE;
9649 struct acl_cond *cond = NULL;
9650
9651 cur_arg = 0;
9652 while (*(args[cur_arg])) {
9653 if (strcmp(args[cur_arg], "location") == 0) {
9654 if (!*args[cur_arg + 1])
9655 goto missing_arg;
9656
9657 type = REDIRECT_TYPE_LOCATION;
9658 cur_arg++;
9659 destination = args[cur_arg];
9660 }
9661 else if (strcmp(args[cur_arg], "prefix") == 0) {
9662 if (!*args[cur_arg + 1])
9663 goto missing_arg;
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9664 type = REDIRECT_TYPE_PREFIX;
9665 cur_arg++;
9666 destination = args[cur_arg];
9667 }
9668 else if (strcmp(args[cur_arg], "scheme") == 0) {
9669 if (!*args[cur_arg + 1])
9670 goto missing_arg;
9671
9672 type = REDIRECT_TYPE_SCHEME;
9673 cur_arg++;
9674 destination = args[cur_arg];
9675 }
9676 else if (strcmp(args[cur_arg], "set-cookie") == 0) {
9677 if (!*args[cur_arg + 1])
9678 goto missing_arg;
9679
9680 cur_arg++;
9681 cookie = args[cur_arg];
9682 cookie_set = 1;
9683 }
9684 else if (strcmp(args[cur_arg], "clear-cookie") == 0) {
9685 if (!*args[cur_arg + 1])
9686 goto missing_arg;
9687
9688 cur_arg++;
9689 cookie = args[cur_arg];
9690 cookie_set = 0;
9691 }
9692 else if (strcmp(args[cur_arg], "code") == 0) {
9693 if (!*args[cur_arg + 1])
9694 goto missing_arg;
9695
9696 cur_arg++;
9697 code = atol(args[cur_arg]);
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9698 if (code < 301 || code > 308 || (code > 303 && code < 307)) {
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9699 memprintf(errmsg,
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9700 "'%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]9701 args[cur_arg - 1], args[cur_arg]);
9702 return NULL;
9703 }
9704 }
9705 else if (!strcmp(args[cur_arg],"drop-query")) {
9706 flags |= REDIRECT_FLAG_DROP_QS;
9707 }
9708 else if (!strcmp(args[cur_arg],"append-slash")) {
9709 flags |= REDIRECT_FLAG_APPEND_SLASH;
9710 }
9711 else if (strcmp(args[cur_arg], "if") == 0 ||
9712 strcmp(args[cur_arg], "unless") == 0) {
9713 cond = build_acl_cond(file, linenum, curproxy, (const char **)args + cur_arg, errmsg);
9714 if (!cond) {
9715 memprintf(errmsg, "error in condition: %s", *errmsg);
9716 return NULL;
9717 }
9718 break;
9719 }
9720 else {
9721 memprintf(errmsg,
9722 "expects 'code', 'prefix', 'location', 'scheme', 'set-cookie', 'clear-cookie', 'drop-query' or 'append-slash' (was '%s')",
9723 args[cur_arg]);
9724 return NULL;
9725 }
9726 cur_arg++;
9727 }
9728
9729 if (type == REDIRECT_TYPE_NONE) {
9730 memprintf(errmsg, "redirection type expected ('prefix', 'location', or 'scheme')");
9731 return NULL;
9732 }
9733
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9734 if (dir && type != REDIRECT_TYPE_LOCATION) {
9735 memprintf(errmsg, "response only supports redirect type 'location'");
9736 return NULL;
9737 }
9738
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]9739 rule = calloc(1, sizeof(*rule));
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9740 rule->cond = cond;
Willy Tarreau60e08382013-12-03 00:48:45 +0100[diff] [blame]9741 LIST_INIT(&rule->rdr_fmt);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9742
9743 if (!use_fmt) {
9744 /* old-style static redirect rule */
9745 rule->rdr_str = strdup(destination);
9746 rule->rdr_len = strlen(destination);
9747 }
9748 else {
9749 /* log-format based redirect rule */
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9750
9751 /* Parse destination. Note that in the REDIRECT_TYPE_PREFIX case,
9752 * if prefix == "/", we don't want to add anything, otherwise it
9753 * makes it hard for the user to configure a self-redirection.
9754 */
Godbachd9722032014-12-18 15:44:58 +0800[diff] [blame]9755 curproxy->conf.args.ctx = ARGC_RDR;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9756 if (!(type == REDIRECT_TYPE_PREFIX && destination[0] == '/' && destination[1] == '\0')) {
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]9757 parse_logformat_string(destination, curproxy, &rule->rdr_fmt, LOG_OPT_HTTP,
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9758 dir ? (curproxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRS_HDR : SMP_VAL_BE_HRS_HDR
9759 : (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]9760 file, linenum);
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9761 free(curproxy->conf.lfs_file);
9762 curproxy->conf.lfs_file = strdup(curproxy->conf.args.file);
9763 curproxy->conf.lfs_line = curproxy->conf.args.line;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9764 }
9765 }
9766
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9767 if (cookie) {
9768 /* depending on cookie_set, either we want to set the cookie, or to clear it.
9769 * a clear consists in appending "; path=/; Max-Age=0;" at the end.
9770 */
9771 rule->cookie_len = strlen(cookie);
9772 if (cookie_set) {
9773 rule->cookie_str = malloc(rule->cookie_len + 10);
9774 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9775 memcpy(rule->cookie_str + rule->cookie_len, "; path=/;", 10);
9776 rule->cookie_len += 9;
9777 } else {
9778 rule->cookie_str = malloc(rule->cookie_len + 21);
9779 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9780 memcpy(rule->cookie_str + rule->cookie_len, "; path=/; Max-Age=0;", 21);
9781 rule->cookie_len += 20;
9782 }
9783 }
9784 rule->type = type;
9785 rule->code = code;
9786 rule->flags = flags;
9787 LIST_INIT(&rule->list);
9788 return rule;
9789
9790 missing_arg:
9791 memprintf(errmsg, "missing argument for '%s'", args[cur_arg]);
9792 return NULL;
9793}
9794
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9795/************************************************************************/
9796/* The code below is dedicated to ACL parsing and matching */
9797/************************************************************************/
9798
9799
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9800/* This function ensures that the prerequisites for an L7 fetch are ready,
9801 * which means that a request or response is ready. If some data is missing,
9802 * 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]9803 * to extract data from L7. If <req_vol> is non-null during a request prefetch,
9804 * another test is made to ensure the required information is not gone.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9805 *
9806 * The function returns :
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9807 * 0 with SMP_F_MAY_CHANGE in the sample flags if some data is missing to
9808 * decide whether or not an HTTP message is present ;
9809 * 0 if the requested data cannot be fetched or if it is certain that
9810 * we'll never have any HTTP message there ;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9811 * 1 if an HTTP message is ready
9812 */
James Rosewell91a41cb2015-09-18 17:11:16 +0100[diff] [blame]9813int smp_prefetch_http(struct proxy *px, struct stream *s, unsigned int opt,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9814 const struct arg *args, struct sample *smp, int req_vol)
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9815{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9816 struct http_txn *txn;
9817 struct http_msg *msg;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9818
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9819 /* Note: it is possible that <s> is NULL when called before stream
9820 * initialization (eg: tcp-request connection), so this function is the
9821 * one responsible for guarding against this case for all HTTP users.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9822 */
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9823 if (!s)
9824 return 0;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9825
Thierry FOURNIERed08d6a2015-09-24 08:40:18 +0200[diff] [blame]9826 if (!s->txn) {
9827 if (unlikely(!http_alloc_txn(s)))
9828 return 0; /* not enough memory */
9829 http_init_txn(s);
9830 }
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9831 txn = s->txn;
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9832 msg = &txn->req;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9833
9834 /* Check for a dependency on a request */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9835 smp->data.type = SMP_T_BOOL;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9836
Willy Tarreau32a6f2e2012-04-25 10:13:36 +0200[diff] [blame]9837 if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9838 /* If the buffer does not leave enough free space at the end,
9839 * we must first realign it.
9840 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9841 if (s->req.buf->p > s->req.buf->data &&
9842 s->req.buf->i + s->req.buf->p > s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)
9843 buffer_slow_realign(s->req.buf);
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9844
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9845 if (unlikely(txn->req.msg_state < HTTP_MSG_BODY)) {
Willy Tarreau472b1ee2013-10-14 22:41:30 +0200[diff] [blame]9846 if (msg->msg_state == HTTP_MSG_ERROR)
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9847 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9848
9849 /* Try to decode HTTP request */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9850 if (likely(msg->next < s->req.buf->i))
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9851 http_msg_analyzer(msg, &txn->hdr_idx);
9852
9853 /* Still no valid request ? */
9854 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau3bf1b2b2012-08-27 20:46:07 +0200[diff] [blame]9855 if ((msg->msg_state == HTTP_MSG_ERROR) ||
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9856 buffer_full(s->req.buf, global.tune.maxrewrite)) {
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9857 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9858 }
9859 /* wait for final state */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9860 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9861 return 0;
9862 }
9863
9864 /* OK we just got a valid HTTP request. We have some minor
9865 * preparation to perform so that further checks can rely
9866 * on HTTP tests.
9867 */
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9868
9869 /* If the request was parsed but was too large, we must absolutely
9870 * return an error so that it is not processed. At the moment this
9871 * cannot happen, but if the parsers are to change in the future,
9872 * we want this check to be maintained.
9873 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9874 if (unlikely(s->req.buf->i + s->req.buf->p >
9875 s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)) {
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9876 msg->msg_state = HTTP_MSG_ERROR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9877 smp->data.u.sint = 1;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9878 return 1;
9879 }
9880
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9881 txn->meth = find_http_meth(msg->chn->buf->p, msg->sl.rq.m_l);
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9882 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]9883 s->flags |= SF_REDIRECTABLE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9884
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9885 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
9886 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9887 }
9888
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9889 if (req_vol && txn->rsp.msg_state != HTTP_MSG_RPBEFORE) {
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9890 return 0; /* data might have moved and indexes changed */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9891 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9892
9893 /* otherwise everything's ready for the request */
9894 }
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9895 else {
9896 /* Check for a dependency on a response */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9897 if (txn->rsp.msg_state < HTTP_MSG_BODY) {
9898 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9899 return 0;
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9900 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9901 }
9902
9903 /* everything's OK */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9904 smp->data.u.sint = 1;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9905 return 1;
9906}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9907
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9908/* 1. Check on METHOD
9909 * We use the pre-parsed method if it is known, and store its number as an
9910 * integer. If it is unknown, we use the pointer and the length.
9911 */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9912static int pat_parse_meth(const char *text, struct pattern *pattern, int mflags, char **err)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9913{
9914 int len, meth;
9915
Thierry FOURNIER580c32c2014-01-24 10:58:12 +0100[diff] [blame]9916 len = strlen(text);
9917 meth = find_http_meth(text, len);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9918
9919 pattern->val.i = meth;
9920 if (meth == HTTP_METH_OTHER) {
Willy Tarreau912c1192014-08-29 15:15:50 +0200[diff] [blame]9921 pattern->ptr.str = (char *)text;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9922 pattern->len = len;
9923 }
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9924 else {
9925 pattern->ptr.str = NULL;
9926 pattern->len = 0;
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9927 }
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9928 return 1;
9929}
9930
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9931/* This function fetches the method of current HTTP request and stores
9932 * it in the global pattern struct as a chunk. There are two possibilities :
9933 * - if the method is known (not HTTP_METH_OTHER), its identifier is stored
9934 * in <len> and <ptr> is NULL ;
9935 * - if the method is unknown (HTTP_METH_OTHER), <ptr> points to the text and
9936 * <len> to its length.
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]9937 * This is intended to be used with pat_match_meth() only.
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9938 */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9939static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9940smp_fetch_meth(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9941{
9942 int meth;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9943 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9944
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9945 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9946
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9947 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9948 meth = txn->meth;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9949 smp->data.type = SMP_T_METH;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9950 smp->data.u.meth.meth = meth;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9951 if (meth == HTTP_METH_OTHER) {
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9952 if (txn->rsp.msg_state != HTTP_MSG_RPBEFORE)
9953 /* ensure the indexes are not affected */
9954 return 0;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9955 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9956 smp->data.u.meth.str.len = txn->req.sl.rq.m_l;
9957 smp->data.u.meth.str.str = txn->req.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9958 }
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9959 smp->flags |= SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9960 return 1;
9961}
9962
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9963/* See above how the method is stored in the global pattern */
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9964static struct pattern *pat_match_meth(struct sample *smp, struct pattern_expr *expr, int fill)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9965{
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9966 int icase;
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9967 struct pattern_list *lst;
9968 struct pattern *pattern;
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9969
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9970 list_for_each_entry(lst, &expr->patterns, list) {
9971 pattern = &lst->pat;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9972
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9973 /* well-known method */
9974 if (pattern->val.i != HTTP_METH_OTHER) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9975 if (smp->data.u.meth.meth == pattern->val.i)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9976 return pattern;
9977 else
9978 continue;
9979 }
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9980
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9981 /* Other method, we must compare the strings */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9982 if (pattern->len != smp->data.u.meth.str.len)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9983 continue;
9984
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9985 icase = expr->mflags & PAT_MF_IGNORE_CASE;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9986 if ((icase && strncasecmp(pattern->ptr.str, smp->data.u.meth.str.str, smp->data.u.meth.str.len) == 0) ||
9987 (!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]9988 return pattern;
9989 }
9990 return NULL;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9991}
9992
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9993static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9994smp_fetch_rqver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9995{
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9996 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9997 char *ptr;
9998 int len;
9999
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10000 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10001
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10002 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10003 len = txn->req.sl.rq.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10004 ptr = txn->req.chn->buf->p + txn->req.sl.rq.v;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10005
10006 while ((len-- > 0) && (*ptr++ != '/'));
10007 if (len <= 0)
10008 return 0;
10009
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10010 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10011 smp->data.u.str.str = ptr;
10012 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10013
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10014 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10015 return 1;
10016}
10017
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]10018static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10019smp_fetch_stver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10020{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10021 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10022 char *ptr;
10023 int len;
10024
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10025 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10026
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10027 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]10028 if (txn->rsp.msg_state < HTTP_MSG_BODY)
10029 return 0;
10030
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10031 len = txn->rsp.sl.st.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10032 ptr = txn->rsp.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10033
10034 while ((len-- > 0) && (*ptr++ != '/'));
10035 if (len <= 0)
10036 return 0;
10037
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10038 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10039 smp->data.u.str.str = ptr;
10040 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10041
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10042 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10043 return 1;
10044}
10045
10046/* 3. Check on Status Code. We manipulate integers here. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]10047static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10048smp_fetch_stcode(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10049{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10050 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10051 char *ptr;
10052 int len;
10053
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10054 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10055
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10056 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]10057 if (txn->rsp.msg_state < HTTP_MSG_BODY)
10058 return 0;
10059
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10060 len = txn->rsp.sl.st.c_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10061 ptr = txn->rsp.chn->buf->p + txn->rsp.sl.st.c;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10062
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10063 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10064 smp->data.u.sint = __strl2ui(ptr, len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10065 smp->flags = SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10066 return 1;
10067}
10068
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]10069static int
10070smp_fetch_uniqueid(const struct arg *args, struct sample *smp, const char *kw, void *private)
10071{
10072 if (LIST_ISEMPTY(&smp->sess->fe->format_unique_id))
10073 return 0;
10074
10075 if (!smp->strm->unique_id) {
10076 if ((smp->strm->unique_id = pool_alloc2(pool2_uniqueid)) == NULL)
10077 return 0;
10078 smp->strm->unique_id[0] = '\0';
10079 }
10080 smp->data.u.str.len = build_logline(smp->strm, smp->strm->unique_id,
10081 UNIQUEID_LEN, &smp->sess->fe->format_unique_id);
10082
10083 smp->data.type = SMP_T_STR;
10084 smp->data.u.str.str = smp->strm->unique_id;
10085 smp->flags = SMP_F_CONST;
10086 return 1;
10087}
10088
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10089/* returns the longest available part of the body. This requires that the body
10090 * has been waited for using http-buffer-request.
10091 */
10092static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10093smp_fetch_body(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10094{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10095 struct http_msg *msg;
10096 unsigned long len;
10097 unsigned long block1;
10098 char *body;
10099 struct chunk *temp;
10100
10101 CHECK_HTTP_MESSAGE_FIRST();
10102
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10103 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10104 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10105 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10106 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10107
10108 len = http_body_bytes(msg);
10109 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
10110
10111 block1 = len;
10112 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
10113 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
10114
10115 if (block1 == len) {
10116 /* buffer is not wrapped (or empty) */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10117 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10118 smp->data.u.str.str = body;
10119 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10120 smp->flags = SMP_F_VOL_TEST | SMP_F_CONST;
10121 }
10122 else {
10123 /* buffer is wrapped, we need to defragment it */
10124 temp = get_trash_chunk();
10125 memcpy(temp->str, body, block1);
10126 memcpy(temp->str + block1, msg->chn->buf->data, len - block1);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10127 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10128 smp->data.u.str.str = temp->str;
10129 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10130 smp->flags = SMP_F_VOL_TEST;
10131 }
10132 return 1;
10133}
10134
10135
10136/* returns the available length of the body. This requires that the body
10137 * has been waited for using http-buffer-request.
10138 */
10139static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10140smp_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]10141{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10142 struct http_msg *msg;
10143
10144 CHECK_HTTP_MESSAGE_FIRST();
10145
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10146 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10147 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10148 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10149 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10150
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10151 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10152 smp->data.u.sint = http_body_bytes(msg);
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10153
10154 smp->flags = SMP_F_VOL_TEST;
10155 return 1;
10156}
10157
10158
10159/* returns the advertised length of the body, or the advertised size of the
10160 * chunks available in the buffer. This requires that the body has been waited
10161 * for using http-buffer-request.
10162 */
10163static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10164smp_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]10165{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10166 struct http_msg *msg;
10167
10168 CHECK_HTTP_MESSAGE_FIRST();
10169
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10170 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10171 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10172 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10173 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10174
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10175 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10176 smp->data.u.sint = msg->body_len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10177
10178 smp->flags = SMP_F_VOL_TEST;
10179 return 1;
10180}
10181
10182
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10183/* 4. Check on URL/URI. A pointer to the URI is stored. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]10184static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10185smp_fetch_url(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10186{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10187 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10188
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10189 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10190
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10191 txn = smp->strm->txn;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10192 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10193 smp->data.u.str.len = txn->req.sl.rq.u_l;
10194 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]10195 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10196 return 1;
10197}
10198
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10199static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10200smp_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]10201{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10202 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]10203 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10204
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10205 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10206
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10207 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]10208 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]10209 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
Willy Tarreauf4362b32011-12-16 17:49:52 +0100[diff] [blame]10210 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10211
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10212 smp->data.type = SMP_T_IPV4;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10213 smp->data.u.ipv4 = ((struct sockaddr_in *)&addr)->sin_addr;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10214 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10215 return 1;
10216}
10217
10218static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10219smp_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]10220{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10221 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]10222 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10223
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10224 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10225
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10226 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]10227 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]10228 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
10229 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10230
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10231 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10232 smp->data.u.sint = ntohs(((struct sockaddr_in *)&addr)->sin_port);
Willy Tarreau21e5b0e2012-04-23 19:25:44 +0200[diff] [blame]10233 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10234 return 1;
10235}
10236
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10237/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
10238 * Accepts an optional argument of type string containing the header field name,
10239 * and an optional argument of type signed or unsigned integer to request an
10240 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10241 * headers are considered from the first one. It does not stop on commas and
10242 * returns full lines instead (useful for User-Agent or Date for example).
10243 */
10244static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10245smp_fetch_fhdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10246{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10247 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10248 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10249 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10250 int occ = 0;
10251 const char *name_str = NULL;
10252 int name_len = 0;
10253
10254 if (!ctx) {
10255 /* first call */
10256 ctx = &static_hdr_ctx;
10257 ctx->idx = 0;
10258 smp->ctx.a[0] = ctx;
10259 }
10260
10261 if (args) {
10262 if (args[0].type != ARGT_STR)
10263 return 0;
10264 name_str = args[0].data.str.str;
10265 name_len = args[0].data.str.len;
10266
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10267 if (args[1].type == ARGT_SINT)
10268 occ = args[1].data.sint;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10269 }
10270
10271 CHECK_HTTP_MESSAGE_FIRST();
10272
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10273 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10274 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]10275
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10276 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
10277 /* search for header from the beginning */
10278 ctx->idx = 0;
10279
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10280 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10281 /* no explicit occurrence and single fetch => last header by default */
10282 occ = -1;
10283
10284 if (!occ)
10285 /* prepare to report multiple occurrences for ACL fetches */
10286 smp->flags |= SMP_F_NOT_LAST;
10287
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10288 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10289 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10290 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]10291 return 1;
10292
10293 smp->flags &= ~SMP_F_NOT_LAST;
10294 return 0;
10295}
10296
10297/* 6. Check on HTTP header count. The number of occurrences is returned.
10298 * Accepts exactly 1 argument of type string. It does not stop on commas and
10299 * returns full lines instead (useful for User-Agent or Date for example).
10300 */
10301static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10302smp_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]10303{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10304 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10305 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10306 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10307 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10308 const char *name = NULL;
10309 int len = 0;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10310
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10311 if (args && args->type == ARGT_STR) {
10312 name = args->data.str.str;
10313 len = args->data.str.len;
10314 }
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10315
10316 CHECK_HTTP_MESSAGE_FIRST();
10317
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10318 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10319 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]10320
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10321 ctx.idx = 0;
10322 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10323 while (http_find_full_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10324 cnt++;
10325
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10326 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10327 smp->data.u.sint = cnt;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10328 smp->flags = SMP_F_VOL_HDR;
10329 return 1;
10330}
10331
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10332static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10333smp_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]10334{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10335 struct hdr_idx *idx;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10336 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10337 const struct http_msg *msg;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10338 struct chunk *temp;
10339 char del = ',';
10340
10341 if (args && args->type == ARGT_STR)
10342 del = *args[0].data.str.str;
10343
10344 CHECK_HTTP_MESSAGE_FIRST();
10345
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10346 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10347 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]10348
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10349 temp = get_trash_chunk();
10350
10351 ctx.idx = 0;
10352 while (http_find_next_header(msg->chn->buf->p, idx, &ctx)) {
10353 if (temp->len)
10354 temp->str[temp->len++] = del;
10355 memcpy(temp->str + temp->len, ctx.line, ctx.del);
10356 temp->len += ctx.del;
10357 }
10358
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10359 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10360 smp->data.u.str.str = temp->str;
10361 smp->data.u.str.len = temp->len;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10362 smp->flags = SMP_F_VOL_HDR;
10363 return 1;
10364}
10365
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10366/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
10367 * Accepts an optional argument of type string containing the header field name,
10368 * and an optional argument of type signed or unsigned integer to request an
10369 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10370 * headers are considered from the first one.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10371 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10372static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10373smp_fetch_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10374{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10375 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10376 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10377 const struct http_msg *msg;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10378 int occ = 0;
10379 const char *name_str = NULL;
10380 int name_len = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10381
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10382 if (!ctx) {
10383 /* first call */
10384 ctx = &static_hdr_ctx;
10385 ctx->idx = 0;
Willy Tarreauffb6f082013-04-02 23:16:53 +0200[diff] [blame]10386 smp->ctx.a[0] = ctx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10387 }
10388
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10389 if (args) {
10390 if (args[0].type != ARGT_STR)
10391 return 0;
10392 name_str = args[0].data.str.str;
10393 name_len = args[0].data.str.len;
10394
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10395 if (args[1].type == ARGT_SINT)
10396 occ = args[1].data.sint;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10397 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10398
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10399 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10400
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10401 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10402 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]10403
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10404 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10405 /* search for header from the beginning */
10406 ctx->idx = 0;
10407
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10408 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10409 /* no explicit occurrence and single fetch => last header by default */
10410 occ = -1;
10411
10412 if (!occ)
10413 /* prepare to report multiple occurrences for ACL fetches */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10414 smp->flags |= SMP_F_NOT_LAST;
Willy Tarreau664092c2011-12-16 19:11:42 +0100[diff] [blame]10415
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10416 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10417 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10418 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]10419 return 1;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10420
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10421 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10422 return 0;
10423}
10424
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10425/* 6. Check on HTTP header count. The number of occurrences is returned.
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10426 * Accepts exactly 1 argument of type string.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10427 */
10428static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10429smp_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]10430{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10431 struct hdr_idx *idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10432 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10433 const struct http_msg *msg;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10434 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10435 const char *name = NULL;
10436 int len = 0;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10437
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10438 if (args && args->type == ARGT_STR) {
10439 name = args->data.str.str;
10440 len = args->data.str.len;
10441 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10442
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10443 CHECK_HTTP_MESSAGE_FIRST();
10444
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10445 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10446 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]10447
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10448 ctx.idx = 0;
10449 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10450 while (http_find_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10451 cnt++;
10452
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10453 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10454 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10455 smp->flags = SMP_F_VOL_HDR;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10456 return 1;
10457}
10458
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10459/* Fetch an HTTP header's integer value. The integer value is returned. It
10460 * takes a mandatory argument of type string and an optional one of type int
10461 * to designate a specific occurrence. It returns an unsigned integer, which
10462 * may or may not be appropriate for everything.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10463 */
10464static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10465smp_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]10466{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10467 int ret = smp_fetch_hdr(args, smp, kw, private);
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10468
Willy Tarreauf853c462012-04-23 18:53:56 +0200[diff] [blame]10469 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10470 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10471 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]10472 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10473
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10474 return ret;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10475}
10476
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10477/* Fetch an HTTP header's IP value. takes a mandatory argument of type string
10478 * and an optional one of type int to designate a specific occurrence.
10479 * It returns an IPv4 or IPv6 address.
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10480 */
10481static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10482smp_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]10483{
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10484 int ret;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10485
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10486 while ((ret = smp_fetch_hdr(args, smp, kw, private)) > 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10487 if (url2ipv4((char *)smp->data.u.str.str, &smp->data.u.ipv4)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10488 smp->data.type = SMP_T_IPV4;
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10489 break;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10490 } else {
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10491 struct chunk *temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10492 if (smp->data.u.str.len < temp->size - 1) {
10493 memcpy(temp->str, smp->data.u.str.str, smp->data.u.str.len);
10494 temp->str[smp->data.u.str.len] = '\0';
10495 if (inet_pton(AF_INET6, temp->str, &smp->data.u.ipv6)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10496 smp->data.type = SMP_T_IPV6;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10497 break;
10498 }
10499 }
10500 }
10501
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10502 /* if the header doesn't match an IP address, fetch next one */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10503 if (!(smp->flags & SMP_F_NOT_LAST))
10504 return 0;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10505 }
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10506 return ret;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10507}
10508
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10509/* 8. Check on URI PATH. A pointer to the PATH is stored. The path starts at
10510 * the first '/' after the possible hostname, and ends before the possible '?'.
10511 */
10512static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10513smp_fetch_path(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10514{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10515 struct http_txn *txn;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10516 char *ptr, *end;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10517
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10518 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10519
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10520 txn = smp->strm->txn;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10521 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]10522 ptr = http_get_path(txn);
10523 if (!ptr)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10524 return 0;
10525
10526 /* OK, we got the '/' ! */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10527 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10528 smp->data.u.str.str = ptr;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10529
10530 while (ptr < end && *ptr != '?')
10531 ptr++;
10532
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10533 smp->data.u.str.len = ptr - smp->data.u.str.str;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10534 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10535 return 1;
10536}
10537
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10538/* This produces a concatenation of the first occurrence of the Host header
10539 * followed by the path component if it begins with a slash ('/'). This means
10540 * that '*' will not be added, resulting in exactly the first Host entry.
10541 * If no Host header is found, then the path is returned as-is. The returned
10542 * 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]10543 * The returned sample is of type string.
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10544 */
10545static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10546smp_fetch_base(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10547{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10548 struct http_txn *txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10549 char *ptr, *end, *beg;
10550 struct hdr_ctx ctx;
Willy Tarreau3caf2af2014-06-24 17:27:02 +0200[diff] [blame]10551 struct chunk *temp;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10552
10553 CHECK_HTTP_MESSAGE_FIRST();
10554
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10555 txn = smp->strm->txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10556 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10557 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]10558 return smp_fetch_path(args, smp, kw, private);
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10559
10560 /* 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]10561 temp = get_trash_chunk();
10562 memcpy(temp->str, ctx.line + ctx.val, ctx.vlen);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10563 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10564 smp->data.u.str.str = temp->str;
10565 smp->data.u.str.len = ctx.vlen;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10566
10567 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10568 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]10569 beg = http_get_path(txn);
10570 if (!beg)
10571 beg = end;
10572
10573 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10574
10575 if (beg < ptr && *beg == '/') {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10576 memcpy(smp->data.u.str.str + smp->data.u.str.len, beg, ptr - beg);
10577 smp->data.u.str.len += ptr - beg;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10578 }
10579
10580 smp->flags = SMP_F_VOL_1ST;
10581 return 1;
10582}
10583
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10584/* This produces a 32-bit hash of the concatenation of the first occurrence of
10585 * the Host header followed by the path component if it begins with a slash ('/').
10586 * This means that '*' will not be added, resulting in exactly the first Host
10587 * 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]10588 * is hashed using the path hash followed by a full avalanche hash and provides a
10589 * 32-bit integer value. This fetch is useful for tracking per-path activity on
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10590 * high-traffic sites without having to store whole paths.
10591 */
Thierry FOURNIER055b9d52014-07-15 16:11:07 +0200[diff] [blame]10592int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10593smp_fetch_base32(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10594{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10595 struct http_txn *txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10596 struct hdr_ctx ctx;
10597 unsigned int hash = 0;
10598 char *ptr, *beg, *end;
10599 int len;
10600
10601 CHECK_HTTP_MESSAGE_FIRST();
10602
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10603 txn = smp->strm->txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10604 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10605 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]10606 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
10607 ptr = ctx.line + ctx.val;
10608 len = ctx.vlen;
10609 while (len--)
10610 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
10611 }
10612
10613 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10614 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]10615 beg = http_get_path(txn);
10616 if (!beg)
10617 beg = end;
10618
10619 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10620
10621 if (beg < ptr && *beg == '/') {
10622 while (beg < ptr)
10623 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
10624 }
10625 hash = full_hash(hash);
10626
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10627 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10628 smp->data.u.sint = hash;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10629 smp->flags = SMP_F_VOL_1ST;
10630 return 1;
10631}
10632
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10633/* 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]10634 * path as returned by smp_fetch_base32(). The idea is to have per-source and
10635 * per-path counters. The result is a binary block from 8 to 20 bytes depending
10636 * on the source address length. The path hash is stored before the address so
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10637 * that in environments where IPv6 is insignificant, truncating the output to
10638 * 8 bytes would still work.
10639 */
10640static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10641smp_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]10642{
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10643 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10644 struct connection *cli_conn = objt_conn(smp->sess->origin);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10645
10646 if (!cli_conn)
10647 return 0;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10648
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10649 if (!smp_fetch_base32(args, smp, kw, private))
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10650 return 0;
10651
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10652 temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10653 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
Willy Tarreau5ad6e1d2014-07-15 21:34:06 +0200[diff] [blame]10654 temp->len += sizeof(unsigned int);
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10655
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10656 switch (cli_conn->addr.from.ss_family) {
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10657 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10658 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]10659 temp->len += 4;
10660 break;
10661 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10662 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]10663 temp->len += 16;
10664 break;
10665 default:
10666 return 0;
10667 }
10668
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10669 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10670 smp->data.type = SMP_T_BIN;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10671 return 1;
10672}
10673
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10674/* Extracts the query string, which comes after the question mark '?'. If no
10675 * question mark is found, nothing is returned. Otherwise it returns a sample
10676 * of type string carrying the whole query string.
10677 */
10678static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10679smp_fetch_query(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10680{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10681 struct http_txn *txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10682 char *ptr, *end;
10683
10684 CHECK_HTTP_MESSAGE_FIRST();
10685
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10686 txn = smp->strm->txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10687 ptr = txn->req.chn->buf->p + txn->req.sl.rq.u;
10688 end = ptr + txn->req.sl.rq.u_l;
10689
10690 /* look up the '?' */
10691 do {
10692 if (ptr == end)
10693 return 0;
10694 } while (*ptr++ != '?');
10695
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10696 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10697 smp->data.u.str.str = ptr;
10698 smp->data.u.str.len = end - ptr;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10699 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
10700 return 1;
10701}
10702
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10703static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10704smp_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]10705{
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10706 /* Note: hdr_idx.v cannot be NULL in this ACL because the ACL is tagged
10707 * as a layer7 ACL, which involves automatic allocation of hdr_idx.
10708 */
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10709
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10710 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10711
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10712 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10713 smp->data.u.sint = 1;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10714 return 1;
10715}
10716
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10717/* return a valid test if the current request is the first one on the connection */
10718static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10719smp_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]10720{
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10721 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10722 smp->data.u.sint = !(smp->strm->txn->flags & TX_NOT_FIRST);
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10723 return 1;
10724}
10725
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10726/* Accepts exactly 1 argument of type userlist */
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10727static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10728smp_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]10729{
10730
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10731 if (!args || args->type != ARGT_USR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10732 return 0;
10733
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10734 CHECK_HTTP_MESSAGE_FIRST();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10735
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10736 if (!get_http_auth(smp->strm))
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10737 return 0;
10738
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10739 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10740 smp->data.u.sint = check_user(args->data.usr, smp->strm->txn->auth.user,
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10741 smp->strm->txn->auth.pass);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10742 return 1;
10743}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10744
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10745/* Accepts exactly 1 argument of type userlist */
10746static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10747smp_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]10748{
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10749 if (!args || args->type != ARGT_USR)
10750 return 0;
10751
10752 CHECK_HTTP_MESSAGE_FIRST();
10753
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10754 if (!get_http_auth(smp->strm))
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10755 return 0;
10756
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10757 /* if the user does not belong to the userlist or has a wrong password,
10758 * report that it unconditionally does not match. Otherwise we return
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10759 * a string containing the username.
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10760 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10761 if (!check_user(args->data.usr, smp->strm->txn->auth.user,
10762 smp->strm->txn->auth.pass))
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10763 return 0;
10764
10765 /* pat_match_auth() will need the user list */
10766 smp->ctx.a[0] = args->data.usr;
10767
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10768 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10769 smp->flags = SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10770 smp->data.u.str.str = smp->strm->txn->auth.user;
10771 smp->data.u.str.len = strlen(smp->strm->txn->auth.user);
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10772
10773 return 1;
10774}
10775
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10776/* Try to find the next occurrence of a cookie name in a cookie header value.
10777 * The lookup begins at <hdr>. The pointer and size of the next occurrence of
10778 * the cookie value is returned into *value and *value_l, and the function
10779 * returns a pointer to the next pointer to search from if the value was found.
10780 * Otherwise if the cookie was not found, NULL is returned and neither value
10781 * nor value_l are touched. The input <hdr> string should first point to the
10782 * header's value, and the <hdr_end> pointer must point to the first character
10783 * not part of the value. <list> must be non-zero if value may represent a list
10784 * of values (cookie headers). This makes it faster to abort parsing when no
10785 * list is expected.
10786 */
David Carlier4686f792015-09-25 14:10:50 +0100[diff] [blame]10787char *
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10788extract_cookie_value(char *hdr, const char *hdr_end,
10789 char *cookie_name, size_t cookie_name_l, int list,
Willy Tarreau3fb818c2012-04-11 17:21:08 +0200[diff] [blame]10790 char **value, int *value_l)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10791{
10792 char *equal, *att_end, *att_beg, *val_beg, *val_end;
10793 char *next;
10794
10795 /* we search at least a cookie name followed by an equal, and more
10796 * generally something like this :
10797 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
10798 */
10799 for (att_beg = hdr; att_beg + cookie_name_l + 1 < hdr_end; att_beg = next + 1) {
10800 /* Iterate through all cookies on this line */
10801
10802 while (att_beg < hdr_end && http_is_spht[(unsigned char)*att_beg])
10803 att_beg++;
10804
10805 /* find att_end : this is the first character after the last non
10806 * space before the equal. It may be equal to hdr_end.
10807 */
10808 equal = att_end = att_beg;
10809
10810 while (equal < hdr_end) {
10811 if (*equal == '=' || *equal == ';' || (list && *equal == ','))
10812 break;
10813 if (http_is_spht[(unsigned char)*equal++])
10814 continue;
10815 att_end = equal;
10816 }
10817
10818 /* here, <equal> points to '=', a delimitor or the end. <att_end>
10819 * is between <att_beg> and <equal>, both may be identical.
10820 */
10821
10822 /* look for end of cookie if there is an equal sign */
10823 if (equal < hdr_end && *equal == '=') {
10824 /* look for the beginning of the value */
10825 val_beg = equal + 1;
10826 while (val_beg < hdr_end && http_is_spht[(unsigned char)*val_beg])
10827 val_beg++;
10828
10829 /* find the end of the value, respecting quotes */
10830 next = find_cookie_value_end(val_beg, hdr_end);
10831
10832 /* make val_end point to the first white space or delimitor after the value */
10833 val_end = next;
10834 while (val_end > val_beg && http_is_spht[(unsigned char)*(val_end - 1)])
10835 val_end--;
10836 } else {
10837 val_beg = val_end = next = equal;
10838 }
10839
10840 /* We have nothing to do with attributes beginning with '$'. However,
10841 * they will automatically be removed if a header before them is removed,
10842 * since they're supposed to be linked together.
10843 */
10844 if (*att_beg == '$')
10845 continue;
10846
10847 /* Ignore cookies with no equal sign */
10848 if (equal == next)
10849 continue;
10850
10851 /* Now we have the cookie name between att_beg and att_end, and
10852 * its value between val_beg and val_end.
10853 */
10854
10855 if (att_end - att_beg == cookie_name_l &&
10856 memcmp(att_beg, cookie_name, cookie_name_l) == 0) {
10857 /* let's return this value and indicate where to go on from */
10858 *value = val_beg;
10859 *value_l = val_end - val_beg;
10860 return next + 1;
10861 }
10862
10863 /* Set-Cookie headers only have the name in the first attr=value part */
10864 if (!list)
10865 break;
10866 }
10867
10868 return NULL;
10869}
10870
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10871/* Fetch a captured HTTP request header. The index is the position of
10872 * the "capture" option in the configuration file
10873 */
10874static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10875smp_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]10876{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10877 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10878 int idx;
10879
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10880 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10881 return 0;
10882
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10883 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10884
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10885 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]10886 return 0;
10887
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10888 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10889 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10890 smp->data.u.str.str = smp->strm->req_cap[idx];
10891 smp->data.u.str.len = strlen(smp->strm->req_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10892
10893 return 1;
10894}
10895
10896/* Fetch a captured HTTP response header. The index is the position of
10897 * the "capture" option in the configuration file
10898 */
10899static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10900smp_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]10901{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10902 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10903 int idx;
10904
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10905 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10906 return 0;
10907
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10908 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10909
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10910 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]10911 return 0;
10912
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10913 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10914 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10915 smp->data.u.str.str = smp->strm->res_cap[idx];
10916 smp->data.u.str.len = strlen(smp->strm->res_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10917
10918 return 1;
10919}
10920
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10921/* Extracts the METHOD in the HTTP request, the txn->uri should be filled before the call */
10922static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10923smp_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]10924{
10925 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10926 struct http_txn *txn = smp->strm->txn;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10927 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10928
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10929 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10930 return 0;
10931
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10932 ptr = txn->uri;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10933
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10934 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10935 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10936
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10937 temp = get_trash_chunk();
10938 temp->str = txn->uri;
10939 temp->len = ptr - txn->uri;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10940 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10941 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10942 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10943
10944 return 1;
10945
10946}
10947
10948/* Extracts the path in the HTTP request, the txn->uri should be filled before the call */
10949static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10950smp_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]10951{
10952 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10953 struct http_txn *txn = smp->strm->txn;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10954 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10955
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10956 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10957 return 0;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10958
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10959 ptr = txn->uri;
10960
10961 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10962 ptr++;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10963
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10964 if (!*ptr)
10965 return 0;
10966
10967 ptr++; /* skip the space */
10968
10969 temp = get_trash_chunk();
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10970 ptr = temp->str = http_get_path_from_string(ptr);
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10971 if (!ptr)
10972 return 0;
10973 while (*ptr != ' ' && *ptr != '\0') /* find space after URI */
10974 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10975
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10976 smp->data.u.str = *temp;
10977 smp->data.u.str.len = ptr - temp->str;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10978 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10979 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10980
10981 return 1;
10982}
10983
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10984/* Retrieves the HTTP version from the request (either 1.0 or 1.1) and emits it
10985 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10986 */
10987static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10988smp_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]10989{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10990 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10991
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10992 if (!txn || txn->req.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10993 return 0;
10994
10995 if (txn->req.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10996 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10997 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10998 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10999
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11000 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11001 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11002 smp->flags = SMP_F_CONST;
11003 return 1;
11004
11005}
11006
11007/* Retrieves the HTTP version from the response (either 1.0 or 1.1) and emits it
11008 * as a string (either "HTTP/1.0" or "HTTP/1.1").
11009 */
11010static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11011smp_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]11012{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11013 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11014
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11015 if (!txn || txn->rsp.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11016 return 0;
11017
11018 if (txn->rsp.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11019 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11020 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11021 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11022
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11023 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11024 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11025 smp->flags = SMP_F_CONST;
11026 return 1;
11027
11028}
11029
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11030
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11031/* Iterate over all cookies present in a message. The context is stored in
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11032 * 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]11033 * 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]11034 * the direction, multiple cookies may be parsed on the same line or not.
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11035 * 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]11036 * Accepts exactly 1 argument of type string. If the input options indicate
11037 * that no iterating is desired, then only last value is fetched if any.
William Lallemand07c8b242014-05-02 17:11:07 +0200[diff] [blame]11038 * The returned sample is of type CSTR. Can be used to parse cookies in other
11039 * files.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11040 */
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11041int 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]11042{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11043 struct http_txn *txn;
11044 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]11045 struct hdr_ctx *ctx = smp->ctx.a[2];
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11046 const struct http_msg *msg;
11047 const char *hdr_name;
11048 int hdr_name_len;
11049 char *sol;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11050 int occ = 0;
11051 int found = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11052
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11053 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]11054 return 0;
11055
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]11056 if (!ctx) {
11057 /* first call */
11058 ctx = &static_hdr_ctx;
11059 ctx->idx = 0;
11060 smp->ctx.a[2] = ctx;
11061 }
11062
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11063 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11064
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11065 txn = smp->strm->txn;
11066 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11067
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11068 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11069 msg = &txn->req;
11070 hdr_name = "Cookie";
11071 hdr_name_len = 6;
11072 } else {
11073 msg = &txn->rsp;
11074 hdr_name = "Set-Cookie";
11075 hdr_name_len = 10;
11076 }
11077
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11078 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11079 /* no explicit occurrence and single fetch => last cookie by default */
11080 occ = -1;
11081
11082 /* OK so basically here, either we want only one value and it's the
11083 * last one, or we want to iterate over all of them and we fetch the
11084 * next one.
11085 */
11086
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]11087 sol = msg->chn->buf->p;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11088 if (!(smp->flags & SMP_F_NOT_LAST)) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11089 /* search for the header from the beginning, we must first initialize
11090 * the search parameters.
11091 */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11092 smp->ctx.a[0] = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11093 ctx->idx = 0;
11094 }
11095
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11096 smp->flags |= SMP_F_VOL_HDR;
11097
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11098 while (1) {
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11099 /* Note: smp->ctx.a[0] == NULL every time we need to fetch a new header */
11100 if (!smp->ctx.a[0]) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11101 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, ctx))
11102 goto out;
11103
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11104 if (ctx->vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11105 continue;
11106
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11107 smp->ctx.a[0] = ctx->line + ctx->val;
11108 smp->ctx.a[1] = smp->ctx.a[0] + ctx->vlen;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11109 }
11110
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11111 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]11112 smp->flags |= SMP_F_CONST;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11113 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]11114 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11115 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11116 &smp->data.u.str.str,
11117 &smp->data.u.str.len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11118 if (smp->ctx.a[0]) {
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11119 found = 1;
11120 if (occ >= 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11121 /* one value was returned into smp->data.u.str.{str,len} */
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11122 smp->flags |= SMP_F_NOT_LAST;
11123 return 1;
11124 }
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11125 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11126 /* if we're looking for last occurrence, let's loop */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11127 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11128 /* all cookie headers and values were scanned. If we're looking for the
11129 * last occurrence, we may return it now.
11130 */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11131 out:
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11132 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11133 return found;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11134}
11135
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11136/* Iterate over all cookies present in a request to count how many occurrences
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11137 * 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]11138 * multiple cookies may be parsed on the same line. The returned sample is of
11139 * type UINT. Accepts exactly 1 argument of type string.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11140 */
11141static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11142smp_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]11143{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11144 struct http_txn *txn;
11145 struct hdr_idx *idx;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11146 struct hdr_ctx ctx;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11147 const struct http_msg *msg;
11148 const char *hdr_name;
11149 int hdr_name_len;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11150 int cnt;
11151 char *val_beg, *val_end;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11152 char *sol;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11153
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11154 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]11155 return 0;
11156
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11157 CHECK_HTTP_MESSAGE_FIRST();
11158
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11159 txn = smp->strm->txn;
11160 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11161
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11162 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11163 msg = &txn->req;
11164 hdr_name = "Cookie";
11165 hdr_name_len = 6;
11166 } else {
11167 msg = &txn->rsp;
11168 hdr_name = "Set-Cookie";
11169 hdr_name_len = 10;
11170 }
11171
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]11172 sol = msg->chn->buf->p;
Willy Tarreau46787ed2012-04-11 17:28:40 +0200[diff] [blame]11173 val_end = val_beg = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11174 ctx.idx = 0;
11175 cnt = 0;
11176
11177 while (1) {
11178 /* Note: val_beg == NULL every time we need to fetch a new header */
11179 if (!val_beg) {
11180 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, &ctx))
11181 break;
11182
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11183 if (ctx.vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11184 continue;
11185
11186 val_beg = ctx.line + ctx.val;
11187 val_end = val_beg + ctx.vlen;
11188 }
11189
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11190 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]11191 smp->flags |= SMP_F_CONST;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11192 while ((val_beg = extract_cookie_value(val_beg, val_end,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11193 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11194 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11195 &smp->data.u.str.str,
11196 &smp->data.u.str.len))) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11197 cnt++;
11198 }
11199 }
11200
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11201 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11202 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11203 smp->flags |= SMP_F_VOL_HDR;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11204 return 1;
11205}
11206
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]11207/* Fetch an cookie's integer value. The integer value is returned. It
11208 * takes a mandatory argument of type string. It relies on smp_fetch_cookie().
11209 */
11210static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11211smp_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]11212{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11213 int ret = smp_fetch_cookie(args, smp, kw, private);
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]11214
11215 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11216 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11217 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]11218 }
11219
11220 return ret;
11221}
11222
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]11223/************************************************************************/
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]11224/* The code below is dedicated to sample fetches */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]11225/************************************************************************/
11226
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11227/*
11228 * Given a path string and its length, find the position of beginning of the
11229 * query string. Returns NULL if no query string is found in the path.
11230 *
11231 * Example: if path = "/foo/bar/fubar?yo=mama;ye=daddy", and n = 22:
11232 *
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11233 * find_query_string(path, n, '?') points to "yo=mama;ye=daddy" string.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11234 */
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11235static inline char *find_param_list(char *path, size_t path_l, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11236{
11237 char *p;
Emeric Brun485479d2010-09-23 18:02:19 +0200[diff] [blame]11238
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11239 p = memchr(path, delim, path_l);
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11240 return p ? p + 1 : NULL;
11241}
11242
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11243static inline int is_param_delimiter(char c, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11244{
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11245 return c == '&' || c == ';' || c == delim;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11246}
11247
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11248/* after increasing a pointer value, it can exceed the first buffer
11249 * size. This function transform the value of <ptr> according with
11250 * the expected position. <chunks> is an array of the one or two
11251 * avalaible chunks. The first value is the start of the first chunk,
11252 * the second value if the end+1 of the first chunks. The third value
11253 * is NULL or the start of the second chunk and the fourth value is
11254 * the end+1 of the second chunk. The function returns 1 if does a
11255 * wrap, else returns 0.
11256 */
11257static inline int fix_pointer_if_wrap(const char **chunks, const char **ptr)
11258{
11259 if (*ptr < chunks[1])
11260 return 0;
11261 if (!chunks[2])
11262 return 0;
11263 *ptr = chunks[2] + ( *ptr - chunks[1] );
11264 return 1;
11265}
11266
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11267/*
11268 * Given a url parameter, find the starting position of the first occurence,
11269 * or NULL if the parameter is not found.
11270 *
11271 * Example: if query_string is "yo=mama;ye=daddy" and url_param_name is "ye",
11272 * the function will return query_string+8.
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11273 *
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11274 * Warning: this function returns a pointer that can point to the first chunk
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11275 * or the second chunk. The caller must be check the position before using the
11276 * result.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11277 */
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11278static const char *
11279find_url_param_pos(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11280 const char* url_param_name, size_t url_param_name_l,
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11281 char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11282{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11283 const char *pos, *last, *equal;
11284 const char **bufs = chunks;
11285 int l1, l2;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11286
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11287
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11288 pos = bufs[0];
11289 last = bufs[1];
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11290 while (pos < last) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11291 /* Check the equal. */
11292 equal = pos + url_param_name_l;
11293 if (fix_pointer_if_wrap(chunks, &equal)) {
11294 if (equal >= chunks[3])
11295 return NULL;
11296 } else {
11297 if (equal >= chunks[1])
11298 return NULL;
11299 }
11300 if (*equal == '=') {
11301 if (pos + url_param_name_l > last) {
11302 /* process wrap case, we detect a wrap. In this case, the
11303 * comparison is performed in two parts.
11304 */
11305
11306 /* This is the end, we dont have any other chunk. */
11307 if (bufs != chunks || !bufs[2])
11308 return NULL;
11309
11310 /* Compute the length of each part of the comparison. */
11311 l1 = last - pos;
11312 l2 = url_param_name_l - l1;
11313
11314 /* The second buffer is too short to contain the compared string. */
11315 if (bufs[2] + l2 > bufs[3])
11316 return NULL;
11317
11318 if (memcmp(pos, url_param_name, l1) == 0 &&
11319 memcmp(bufs[2], url_param_name+l1, l2) == 0)
11320 return pos;
11321
11322 /* Perform wrapping and jump the string who fail the comparison. */
11323 bufs += 2;
11324 pos = bufs[0] + l2;
11325 last = bufs[1];
11326
11327 } else {
11328 /* process a simple comparison. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11329 if (memcmp(pos, url_param_name, url_param_name_l) == 0)
11330 return pos;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11331 pos += url_param_name_l + 1;
11332 if (fix_pointer_if_wrap(chunks, &pos))
11333 last = bufs[2];
11334 }
11335 }
11336
11337 while (1) {
11338 /* Look for the next delimiter. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11339 while (pos < last && !is_param_delimiter(*pos, delim))
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11340 pos++;
11341 if (pos < last)
11342 break;
11343 /* process buffer wrapping. */
11344 if (bufs != chunks || !bufs[2])
11345 return NULL;
11346 bufs += 2;
11347 pos = bufs[0];
11348 last = bufs[1];
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11349 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11350 pos++;
11351 }
11352 return NULL;
11353}
11354
11355/*
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11356 * Given a url parameter name and a query string, find the next value.
11357 * An empty url_param_name matches the first available parameter.
11358 * If the parameter is found, 1 is returned and *vstart / *vend are updated to
11359 * respectively provide a pointer to the value and its end.
11360 * Otherwise, 0 is returned and vstart/vend are not modified.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11361 */
11362static int
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11363find_next_url_param(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11364 const char* url_param_name, size_t url_param_name_l,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11365 const char **vstart, const char **vend, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11366{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11367 const char *arg_start, *qs_end;
11368 const char *value_start, *value_end;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11369
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11370 arg_start = chunks[0];
11371 qs_end = chunks[1];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11372 if (url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11373 /* Looks for an argument name. */
11374 arg_start = find_url_param_pos(chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11375 url_param_name, url_param_name_l,
11376 delim);
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11377 /* Check for wrapping. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11378 if (arg_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11379 qs_end = chunks[3];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11380 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11381 if (!arg_start)
11382 return 0;
11383
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11384 if (!url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11385 while (1) {
11386 /* looks for the first argument. */
11387 value_start = memchr(arg_start, '=', qs_end - arg_start);
11388 if (!value_start) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11389 /* Check for wrapping. */
11390 if (arg_start >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11391 arg_start < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11392 chunks[2]) {
11393 arg_start = chunks[2];
11394 qs_end = chunks[3];
11395 continue;
11396 }
11397 return 0;
11398 }
11399 break;
11400 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11401 value_start++;
11402 }
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11403 else {
11404 /* Jump the argument length. */
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11405 value_start = arg_start + url_param_name_l + 1;
11406
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11407 /* Check for pointer wrapping. */
11408 if (fix_pointer_if_wrap(chunks, &value_start)) {
11409 /* Update the end pointer. */
11410 qs_end = chunks[3];
11411
11412 /* Check for overflow. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11413 if (value_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11414 return 0;
11415 }
11416 }
11417
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11418 value_end = value_start;
11419
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11420 while (1) {
11421 while ((value_end < qs_end) && !is_param_delimiter(*value_end, delim))
11422 value_end++;
11423 if (value_end < qs_end)
11424 break;
11425 /* process buffer wrapping. */
11426 if (value_end >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11427 value_end < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11428 chunks[2]) {
11429 value_end = chunks[2];
11430 qs_end = chunks[3];
11431 continue;
11432 }
11433 break;
11434 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11435
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11436 *vstart = value_start;
11437 *vend = value_end;
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11438 return 1;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11439}
11440
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11441/* This scans a URL-encoded query string. It takes an optionally wrapping
11442 * string whose first contigous chunk has its beginning in ctx->a[0] and end
11443 * in ctx->a[1], and the optional second part in (ctx->a[2]..ctx->a[3]). The
11444 * pointers are updated for next iteration before leaving.
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11445 */
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11446static int
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11447smp_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]11448{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11449 const char *vstart, *vend;
11450 struct chunk *temp;
11451 const char **chunks = (const char **)smp->ctx.a;
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11452
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11453 if (!find_next_url_param(chunks,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11454 name, name_len,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11455 &vstart, &vend,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11456 delim))
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11457 return 0;
11458
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11459 /* Create sample. If the value is contiguous, return the pointer as CONST,
11460 * if the value is wrapped, copy-it in a buffer.
11461 */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11462 smp->data.type = SMP_T_STR;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11463 if (chunks[2] &&
11464 vstart >= chunks[0] && vstart <= chunks[1] &&
11465 vend >= chunks[2] && vend <= chunks[3]) {
11466 /* Wrapped case. */
11467 temp = get_trash_chunk();
11468 memcpy(temp->str, vstart, chunks[1] - vstart);
11469 memcpy(temp->str + ( chunks[1] - vstart ), chunks[2], vend - chunks[2]);
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11470 smp->data.u.str.str = temp->str;
11471 smp->data.u.str.len = ( chunks[1] - vstart ) + ( vend - chunks[2] );
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11472 } else {
11473 /* Contiguous case. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11474 smp->data.u.str.str = (char *)vstart;
11475 smp->data.u.str.len = vend - vstart;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11476 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
11477 }
11478
11479 /* Update context, check wrapping. */
11480 chunks[0] = vend;
11481 if (chunks[2] && vend >= chunks[2] && vend <= chunks[3]) {
11482 chunks[1] = chunks[3];
11483 chunks[2] = NULL;
11484 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11485
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11486 if (chunks[0] < chunks[1])
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11487 smp->flags |= SMP_F_NOT_LAST;
11488
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11489 return 1;
11490}
11491
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11492/* This function iterates over each parameter of the query string. It uses
11493 * 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]11494 * parameter. Since it uses smp_fetch_param(), ctx->a[2..3] are both NULL.
11495 * An optional parameter name is passed in args[0], otherwise any parameter is
11496 * considered. It supports an optional delimiter argument for the beginning of
11497 * the string in args[1], which defaults to "?".
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11498 */
11499static int
11500smp_fetch_url_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11501{
11502 struct http_msg *msg;
11503 char delim = '?';
11504 const char *name;
11505 int name_len;
11506
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11507 if (!args ||
11508 (args[0].type && args[0].type != ARGT_STR) ||
11509 (args[1].type && args[1].type != ARGT_STR))
11510 return 0;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11511
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11512 name = "";
11513 name_len = 0;
11514 if (args->type == ARGT_STR) {
11515 name = args->data.str.str;
11516 name_len = args->data.str.len;
11517 }
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11518
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11519 if (args[1].type)
11520 delim = *args[1].data.str.str;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11521
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11522 if (!smp->ctx.a[0]) { // first call, find the query string
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11523 CHECK_HTTP_MESSAGE_FIRST();
11524
11525 msg = &smp->strm->txn->req;
11526
11527 smp->ctx.a[0] = find_param_list(msg->chn->buf->p + msg->sl.rq.u,
11528 msg->sl.rq.u_l, delim);
11529 if (!smp->ctx.a[0])
11530 return 0;
11531
11532 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]11533
11534 /* Assume that the context is filled with NULL pointer
11535 * before the first call.
11536 * smp->ctx.a[2] = NULL;
11537 * smp->ctx.a[3] = NULL;
11538 */
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11539 }
11540
11541 return smp_fetch_param(delim, name, name_len, args, smp, kw, private);
11542}
11543
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11544/* This function iterates over each parameter of the body. This requires
11545 * that the body has been waited for using http-buffer-request. It uses
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11546 * ctx->a[0] and ctx->a[1] to store the beginning and end of the first
11547 * contigous part of the body, and optionally ctx->a[2..3] to reference the
11548 * optional second part if the body wraps at the end of the buffer. An optional
11549 * parameter name is passed in args[0], otherwise any parameter is considered.
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11550 */
11551static int
11552smp_fetch_body_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11553{
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11554 struct http_msg *msg;
11555 unsigned long len;
11556 unsigned long block1;
11557 char *body;
11558 const char *name;
11559 int name_len;
11560
11561 if (!args || (args[0].type && args[0].type != ARGT_STR))
11562 return 0;
11563
11564 name = "";
11565 name_len = 0;
11566 if (args[0].type == ARGT_STR) {
11567 name = args[0].data.str.str;
11568 name_len = args[0].data.str.len;
11569 }
11570
11571 if (!smp->ctx.a[0]) { // first call, find the query string
11572 CHECK_HTTP_MESSAGE_FIRST();
11573
11574 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11575 msg = &smp->strm->txn->req;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11576 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11577 msg = &smp->strm->txn->rsp;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11578
11579 len = http_body_bytes(msg);
11580 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
11581
11582 block1 = len;
11583 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
11584 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
11585
11586 if (block1 == len) {
11587 /* buffer is not wrapped (or empty) */
11588 smp->ctx.a[0] = body;
11589 smp->ctx.a[1] = body + len;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11590
11591 /* Assume that the context is filled with NULL pointer
11592 * before the first call.
11593 * smp->ctx.a[2] = NULL;
11594 * smp->ctx.a[3] = NULL;
11595 */
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11596 }
11597 else {
11598 /* buffer is wrapped, we need to defragment it */
11599 smp->ctx.a[0] = body;
11600 smp->ctx.a[1] = body + block1;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11601 smp->ctx.a[2] = msg->chn->buf->data;
11602 smp->ctx.a[3] = msg->chn->buf->data + ( len - block1 );
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11603 }
11604 }
11605 return smp_fetch_param('&', name, name_len, args, smp, kw, private);
11606}
11607
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11608/* Return the signed integer value for the specified url parameter (see url_param
11609 * above).
11610 */
11611static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11612smp_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]11613{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11614 int ret = smp_fetch_url_param(args, smp, kw, private);
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11615
11616 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11617 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11618 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]11619 }
11620
11621 return ret;
11622}
11623
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11624/* This produces a 32-bit hash of the concatenation of the first occurrence of
11625 * the Host header followed by the path component if it begins with a slash ('/').
11626 * This means that '*' will not be added, resulting in exactly the first Host
11627 * entry. If no Host header is found, then the path is used. The resulting value
11628 * is hashed using the url hash followed by a full avalanche hash and provides a
11629 * 32-bit integer value. This fetch is useful for tracking per-URL activity on
11630 * high-traffic sites without having to store whole paths.
11631 * this differs from the base32 functions in that it includes the url parameters
11632 * as well as the path
11633 */
11634static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11635smp_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]11636{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11637 struct http_txn *txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11638 struct hdr_ctx ctx;
11639 unsigned int hash = 0;
11640 char *ptr, *beg, *end;
11641 int len;
11642
11643 CHECK_HTTP_MESSAGE_FIRST();
11644
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11645 txn = smp->strm->txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11646 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11647 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]11648 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
11649 ptr = ctx.line + ctx.val;
11650 len = ctx.vlen;
11651 while (len--)
11652 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
11653 }
11654
11655 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11656 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]11657 beg = http_get_path(txn);
11658 if (!beg)
11659 beg = end;
11660
11661 for (ptr = beg; ptr < end ; ptr++);
11662
11663 if (beg < ptr && *beg == '/') {
11664 while (beg < ptr)
11665 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
11666 }
11667 hash = full_hash(hash);
11668
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11669 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11670 smp->data.u.sint = hash;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11671 smp->flags = SMP_F_VOL_1ST;
11672 return 1;
11673}
11674
11675/* This concatenates the source address with the 32-bit hash of the Host and
11676 * URL as returned by smp_fetch_base32(). The idea is to have per-source and
11677 * per-url counters. The result is a binary block from 8 to 20 bytes depending
11678 * on the source address length. The URL hash is stored before the address so
11679 * that in environments where IPv6 is insignificant, truncating the output to
11680 * 8 bytes would still work.
11681 */
11682static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11683smp_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]11684{
11685 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11686 struct connection *cli_conn = objt_conn(smp->sess->origin);
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]11687 unsigned int hash;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11688
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11689 if (!smp_fetch_url32(args, smp, kw, private))
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11690 return 0;
11691
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]11692 /* The returned hash is a 32 bytes integer. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11693 hash = smp->data.u.sint;
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]11694
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11695 temp = get_trash_chunk();
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]11696 memcpy(temp->str + temp->len, &hash, sizeof(hash));
11697 temp->len += sizeof(hash);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11698
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11699 switch (cli_conn->addr.from.ss_family) {
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11700 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11701 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]11702 temp->len += 4;
11703 break;
11704 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11705 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]11706 temp->len += 16;
11707 break;
11708 default:
11709 return 0;
11710 }
11711
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11712 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11713 smp->data.type = SMP_T_BIN;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11714 return 1;
11715}
11716
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11717/* This function is used to validate the arguments passed to any "hdr" fetch
11718 * keyword. These keywords support an optional positive or negative occurrence
11719 * number. We must ensure that the number is greater than -MAX_HDR_HISTORY. It
11720 * is assumed that the types are already the correct ones. Returns 0 on error,
11721 * non-zero if OK. If <err> is not NULL, it will be filled with a pointer to an
11722 * error message in case of error, that the caller is responsible for freeing.
11723 * The initial location must either be freeable or NULL.
11724 */
Thierry FOURNIER49f45af2014-12-08 19:50:43 +0100[diff] [blame]11725int val_hdr(struct arg *arg, char **err_msg)
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11726{
11727 if (arg && arg[1].type == ARGT_SINT && arg[1].data.sint < -MAX_HDR_HISTORY) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]11728 memprintf(err_msg, "header occurrence must be >= %d", -MAX_HDR_HISTORY);
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11729 return 0;
11730 }
11731 return 1;
11732}
11733
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11734/* takes an UINT value on input supposed to represent the time since EPOCH,
11735 * adds an optional offset found in args[0] and emits a string representing
11736 * the date in RFC-1123/5322 format.
11737 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11738static int sample_conv_http_date(const struct arg *args, struct sample *smp, void *private)
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11739{
Cyril Bontéf78d8962016-01-22 19:40:28 +0100[diff] [blame]11740 const char day[7][4] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11741 const char mon[12][4] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
11742 struct chunk *temp;
11743 struct tm *tm;
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11744 /* 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]11745 time_t curr_date = smp->data.u.sint & 0x007fffffffffffffLL;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11746
11747 /* add offset */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11748 if (args && (args[0].type == ARGT_SINT))
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11749 curr_date += args[0].data.sint;
11750
11751 tm = gmtime(&curr_date);
Thierry FOURNIERfac9ccf2015-07-08 00:15:20 +0200[diff] [blame]11752 if (!tm)
11753 return 0;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11754
11755 temp = get_trash_chunk();
11756 temp->len = snprintf(temp->str, temp->size - temp->len,
11757 "%s, %02d %s %04d %02d:%02d:%02d GMT",
11758 day[tm->tm_wday], tm->tm_mday, mon[tm->tm_mon], 1900+tm->tm_year,
11759 tm->tm_hour, tm->tm_min, tm->tm_sec);
11760
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11761 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11762 smp->data.type = SMP_T_STR;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11763 return 1;
11764}
11765
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11766/* Match language range with language tag. RFC2616 14.4:
11767 *
11768 * A language-range matches a language-tag if it exactly equals
11769 * the tag, or if it exactly equals a prefix of the tag such
11770 * that the first tag character following the prefix is "-".
11771 *
11772 * Return 1 if the strings match, else return 0.
11773 */
11774static inline int language_range_match(const char *range, int range_len,
11775 const char *tag, int tag_len)
11776{
11777 const char *end = range + range_len;
11778 const char *tend = tag + tag_len;
11779 while (range < end) {
11780 if (*range == '-' && tag == tend)
11781 return 1;
11782 if (*range != *tag || tag == tend)
11783 return 0;
11784 range++;
11785 tag++;
11786 }
11787 /* Return true only if the last char of the tag is matched. */
11788 return tag == tend;
11789}
11790
11791/* Arguments: The list of expected value, the number of parts returned and the separator */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11792static int sample_conv_q_prefered(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11793{
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11794 const char *al = smp->data.u.str.str;
11795 const char *end = al + smp->data.u.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11796 const char *token;
11797 int toklen;
11798 int qvalue;
11799 const char *str;
11800 const char *w;
11801 int best_q = 0;
11802
11803 /* Set the constant to the sample, because the output of the
11804 * function will be peek in the constant configuration string.
11805 */
11806 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11807 smp->data.u.str.size = 0;
11808 smp->data.u.str.str = "";
11809 smp->data.u.str.len = 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11810
11811 /* Parse the accept language */
11812 while (1) {
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 break;
11819
11820 /* Start of the fisrt word. */
11821 token = al;
11822
11823 /* Look for separator: isspace(), ',' or ';'. Next value if 0 length word. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11824 while (al < end && *al != ';' && *al != ',' && !isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11825 al++;
11826 if (al == token)
11827 goto expect_comma;
11828
11829 /* Length of the token. */
11830 toklen = al - token;
11831 qvalue = 1000;
11832
11833 /* Check if the token exists in the list. If the token not exists,
11834 * jump to the next token.
11835 */
11836 str = args[0].data.str.str;
11837 w = str;
11838 while (1) {
11839 if (*str == ';' || *str == '\0') {
11840 if (language_range_match(token, toklen, w, str-w))
11841 goto look_for_q;
11842 if (*str == '\0')
11843 goto expect_comma;
11844 w = str + 1;
11845 }
11846 str++;
11847 }
11848 goto expect_comma;
11849
11850look_for_q:
11851
11852 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11853 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11854 al++;
11855 if (al >= end)
11856 goto process_value;
11857
11858 /* If ',' is found, process the result */
11859 if (*al == ',')
11860 goto process_value;
11861
11862 /* If the character is different from ';', look
11863 * for the end of the header part in best effort.
11864 */
11865 if (*al != ';')
11866 goto expect_comma;
11867
11868 /* Assumes that the char is ';', now expect "q=". */
11869 al++;
11870
11871 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11872 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11873 al++;
11874 if (al >= end)
11875 goto process_value;
11876
11877 /* Expect 'q'. If no 'q', continue in best effort */
11878 if (*al != 'q')
11879 goto process_value;
11880 al++;
11881
11882 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11883 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11884 al++;
11885 if (al >= end)
11886 goto process_value;
11887
11888 /* Expect '='. If no '=', continue in best effort */
11889 if (*al != '=')
11890 goto process_value;
11891 al++;
11892
11893 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11894 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11895 al++;
11896 if (al >= end)
11897 goto process_value;
11898
11899 /* Parse the q value. */
11900 qvalue = parse_qvalue(al, &al);
11901
11902process_value:
11903
11904 /* If the new q value is the best q value, then store the associated
11905 * language in the response. If qvalue is the biggest value (1000),
11906 * break the process.
11907 */
11908 if (qvalue > best_q) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11909 smp->data.u.str.str = (char *)w;
11910 smp->data.u.str.len = str - w;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11911 if (qvalue >= 1000)
11912 break;
11913 best_q = qvalue;
11914 }
11915
11916expect_comma:
11917
11918 /* Expect comma or end. If the end is detected, quit the loop. */
11919 while (al < end && *al != ',')
11920 al++;
11921 if (al >= end)
11922 break;
11923
11924 /* Comma is found, jump it and restart the analyzer. */
11925 al++;
11926 }
11927
11928 /* Set default value if required. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11929 if (smp->data.u.str.len == 0 && args[1].type == ARGT_STR) {
11930 smp->data.u.str.str = args[1].data.str.str;
11931 smp->data.u.str.len = args[1].data.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11932 }
11933
11934 /* Return true only if a matching language was found. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11935 return smp->data.u.str.len != 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11936}
11937
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11938/* This fetch url-decode any input string. */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11939static int sample_conv_url_dec(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11940{
11941 /* If the constant flag is set or if not size is avalaible at
11942 * the end of the buffer, copy the string in other buffer
11943 * before decoding.
11944 */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11945 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]11946 struct chunk *str = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11947 memcpy(str->str, smp->data.u.str.str, smp->data.u.str.len);
11948 smp->data.u.str.str = str->str;
11949 smp->data.u.str.size = str->size;
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11950 smp->flags &= ~SMP_F_CONST;
11951 }
11952
11953 /* Add final \0 required by url_decode(), and convert the input string. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11954 smp->data.u.str.str[smp->data.u.str.len] = '\0';
11955 smp->data.u.str.len = url_decode(smp->data.u.str.str);
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11956 return 1;
11957}
11958
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11959static int smp_conv_req_capture(const struct arg *args, struct sample *smp, void *private)
11960{
11961 struct proxy *fe = strm_fe(smp->strm);
11962 int idx, i;
11963 struct cap_hdr *hdr;
11964 int len;
11965
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11966 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11967 return 0;
11968
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11969 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11970
11971 /* Check the availibity of the capture id. */
11972 if (idx > fe->nb_req_cap - 1)
11973 return 0;
11974
11975 /* Look for the original configuration. */
11976 for (hdr = fe->req_cap, i = fe->nb_req_cap - 1;
11977 hdr != NULL && i != idx ;
11978 i--, hdr = hdr->next);
11979 if (!hdr)
11980 return 0;
11981
11982 /* check for the memory allocation */
11983 if (smp->strm->req_cap[hdr->index] == NULL)
11984 smp->strm->req_cap[hdr->index] = pool_alloc2(hdr->pool);
11985 if (smp->strm->req_cap[hdr->index] == NULL)
11986 return 0;
11987
11988 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11989 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11990 if (len > hdr->len)
11991 len = hdr->len;
11992
11993 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11994 memcpy(smp->strm->req_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11995 smp->strm->req_cap[idx][len] = '\0';
11996
11997 return 1;
11998}
11999
12000static int smp_conv_res_capture(const struct arg *args, struct sample *smp, void *private)
12001{
12002 struct proxy *fe = strm_fe(smp->strm);
12003 int idx, i;
12004 struct cap_hdr *hdr;
12005 int len;
12006
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12007 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12008 return 0;
12009
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12010 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12011
12012 /* Check the availibity of the capture id. */
12013 if (idx > fe->nb_rsp_cap - 1)
12014 return 0;
12015
12016 /* Look for the original configuration. */
12017 for (hdr = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
12018 hdr != NULL && i != idx ;
12019 i--, hdr = hdr->next);
12020 if (!hdr)
12021 return 0;
12022
12023 /* check for the memory allocation */
12024 if (smp->strm->res_cap[hdr->index] == NULL)
12025 smp->strm->res_cap[hdr->index] = pool_alloc2(hdr->pool);
12026 if (smp->strm->res_cap[hdr->index] == NULL)
12027 return 0;
12028
12029 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12030 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12031 if (len > hdr->len)
12032 len = hdr->len;
12033
12034 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12035 memcpy(smp->strm->res_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12036 smp->strm->res_cap[idx][len] = '\0';
12037
12038 return 1;
12039}
12040
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12041/* This function executes one of the set-{method,path,query,uri} actions. It
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12042 * takes the string from the variable 'replace' with length 'len', then modifies
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12043 * the relevant part of the request line accordingly. Then it updates various
12044 * pointers to the next elements which were moved, and the total buffer length.
12045 * It finds the action to be performed in p[2], previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12046 * parse_set_req_line(). It returns 0 in case of success, -1 in case of internal
12047 * error, though this can be revisited when this code is finally exploited.
12048 *
12049 * 'action' can be '0' to replace method, '1' to replace path, '2' to replace
12050 * query string and 3 to replace uri.
12051 *
12052 * In query string case, the mark question '?' must be set at the start of the
12053 * string by the caller, event if the replacement query string is empty.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12054 */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12055int http_replace_req_line(int action, const char *replace, int len,
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]12056 struct proxy *px, struct stream *s)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12057{
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]12058 struct http_txn *txn = s->txn;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12059 char *cur_ptr, *cur_end;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12060 int offset = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12061 int delta;
12062
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12063 switch (action) {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12064 case 0: // method
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]12065 cur_ptr = s->req.buf->p;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12066 cur_end = cur_ptr + txn->req.sl.rq.m_l;
12067
12068 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12069 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12070 txn->req.sl.rq.m_l += delta;
12071 txn->req.sl.rq.u += delta;
12072 txn->req.sl.rq.v += delta;
12073 break;
12074
12075 case 1: // path
12076 cur_ptr = http_get_path(txn);
12077 if (!cur_ptr)
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]12078 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12079
12080 cur_end = cur_ptr;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]12081 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]12082 cur_end++;
12083
12084 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12085 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12086 txn->req.sl.rq.u_l += delta;
12087 txn->req.sl.rq.v += delta;
12088 break;
12089
12090 case 2: // query
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12091 offset = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]12092 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12093 cur_end = cur_ptr + txn->req.sl.rq.u_l;
12094 while (cur_ptr < cur_end && *cur_ptr != '?')
12095 cur_ptr++;
12096
12097 /* skip the question mark or indicate that we must insert it
12098 * (but only if the format string is not empty then).
12099 */
12100 if (cur_ptr < cur_end)
12101 cur_ptr++;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12102 else if (len > 1)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12103 offset = 0;
12104
12105 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12106 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12107 txn->req.sl.rq.u_l += delta;
12108 txn->req.sl.rq.v += delta;
12109 break;
12110
12111 case 3: // uri
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]12112 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12113 cur_end = cur_ptr + txn->req.sl.rq.u_l;
12114
12115 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12116 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12117 txn->req.sl.rq.u_l += delta;
12118 txn->req.sl.rq.v += delta;
12119 break;
12120
12121 default:
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12122 return -1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12123 }
12124
12125 /* commit changes and adjust end of message */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12126 delta = buffer_replace2(s->req.buf, cur_ptr, cur_end, replace + offset, len - offset);
Thierry FOURNIER7f6192c2015-04-26 18:01:40 +0200[diff] [blame]12127 txn->req.sl.rq.l += delta;
12128 txn->hdr_idx.v[0].len += delta;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12129 http_msg_move_end(&txn->req, delta);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12130 return 0;
12131}
12132
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12133/* This function replace the HTTP status code and the associated message. The
12134 * variable <status> contains the new status code. This function never fails.
12135 */
12136void http_set_status(unsigned int status, struct stream *s)
12137{
12138 struct http_txn *txn = s->txn;
12139 char *cur_ptr, *cur_end;
12140 int delta;
12141 char *res;
12142 int c_l;
12143 const char *msg;
12144 int msg_len;
12145
12146 chunk_reset(&trash);
12147
12148 res = ultoa_o(status, trash.str, trash.size);
12149 c_l = res - trash.str;
12150
12151 trash.str[c_l] = ' ';
12152 trash.len = c_l + 1;
12153
12154 msg = get_reason(status);
12155 msg_len = strlen(msg);
12156
12157 strncpy(&trash.str[trash.len], msg, trash.size - trash.len);
12158 trash.len += msg_len;
12159
12160 cur_ptr = s->res.buf->p + txn->rsp.sl.st.c;
12161 cur_end = s->res.buf->p + txn->rsp.sl.st.r + txn->rsp.sl.st.r_l;
12162
12163 /* commit changes and adjust message */
12164 delta = buffer_replace2(s->res.buf, cur_ptr, cur_end, trash.str, trash.len);
12165
12166 /* adjust res line offsets and lengths */
12167 txn->rsp.sl.st.r += c_l - txn->rsp.sl.st.c_l;
12168 txn->rsp.sl.st.c_l = c_l;
12169 txn->rsp.sl.st.r_l = msg_len;
12170
12171 delta = trash.len - (cur_end - cur_ptr);
12172 txn->rsp.sl.st.l += delta;
12173 txn->hdr_idx.v[0].len += delta;
12174 http_msg_move_end(&txn->rsp, delta);
12175}
12176
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12177/* This function executes one of the set-{method,path,query,uri} actions. It
12178 * builds a string in the trash from the specified format string. It finds
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]12179 * the action to be performed in <http.action>, previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12180 * parse_set_req_line(). The replacement action is excuted by the function
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]12181 * http_action_set_req_line(). It always returns ACT_RET_CONT. If an error
12182 * occurs the action is canceled, but the rule processing continue.
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12183 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12184enum act_return http_action_set_req_line(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12185 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12186{
12187 chunk_reset(&trash);
12188
12189 /* If we have to create a query string, prepare a '?'. */
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12190 if (rule->arg.http.action == 2)
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12191 trash.str[trash.len++] = '?';
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12192 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]12193
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12194 http_replace_req_line(rule->arg.http.action, trash.str, trash.len, px, s);
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12195 return ACT_RET_CONT;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12196}
12197
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12198/* This function is just a compliant action wrapper for "set-status". */
12199enum act_return action_http_set_status(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12200 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12201{
12202 http_set_status(rule->arg.status.code, s);
12203 return ACT_RET_CONT;
12204}
12205
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12206/* parse an http-request action among :
12207 * set-method
12208 * set-path
12209 * set-query
12210 * set-uri
12211 *
12212 * All of them accept a single argument of type string representing a log-format.
12213 * The resulting rule makes use of arg->act.p[0..1] to store the log-format list
12214 * 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]12215 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12216 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12217enum act_parse_ret parse_set_req_line(const char **args, int *orig_arg, struct proxy *px,
12218 struct act_rule *rule, char **err)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12219{
12220 int cur_arg = *orig_arg;
12221
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12222 rule->action = ACT_CUSTOM;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12223
12224 switch (args[0][4]) {
12225 case 'm' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12226 rule->arg.http.action = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12227 rule->action_ptr = http_action_set_req_line;
12228 break;
12229 case 'p' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12230 rule->arg.http.action = 1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12231 rule->action_ptr = http_action_set_req_line;
12232 break;
12233 case 'q' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12234 rule->arg.http.action = 2;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12235 rule->action_ptr = http_action_set_req_line;
12236 break;
12237 case 'u' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12238 rule->arg.http.action = 3;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12239 rule->action_ptr = http_action_set_req_line;
12240 break;
12241 default:
12242 memprintf(err, "internal error: unhandled action '%s'", args[0]);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12243 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12244 }
12245
12246 if (!*args[cur_arg] ||
12247 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
12248 memprintf(err, "expects exactly 1 argument <format>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12249 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12250 }
12251
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12252 LIST_INIT(&rule->arg.http.logfmt);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12253 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12254 parse_logformat_string(args[cur_arg], proxy, &rule->arg.http.logfmt, LOG_OPT_HTTP,
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12255 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
12256 proxy->conf.args.file, proxy->conf.args.line);
12257
12258 (*orig_arg)++;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12259 return ACT_RET_PRS_OK;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12260}
12261
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12262/* parse set-status action:
12263 * This action accepts a single argument of type int representing
12264 * an http status code. It returns ACT_RET_PRS_OK on success,
12265 * ACT_RET_PRS_ERR on error.
12266 */
12267enum act_parse_ret parse_http_set_status(const char **args, int *orig_arg, struct proxy *px,
12268 struct act_rule *rule, char **err)
12269{
12270 char *error;
12271
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12272 rule->action = ACT_CUSTOM;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12273 rule->action_ptr = action_http_set_status;
12274
12275 /* Check if an argument is available */
12276 if (!*args[*orig_arg]) {
12277 memprintf(err, "expects exactly 1 argument <status>");
12278 return ACT_RET_PRS_ERR;
12279 }
12280
12281 /* convert status code as integer */
12282 rule->arg.status.code = strtol(args[*orig_arg], &error, 10);
12283 if (*error != '\0' || rule->arg.status.code < 100 || rule->arg.status.code > 999) {
12284 memprintf(err, "expects an integer status code between 100 and 999");
12285 return ACT_RET_PRS_ERR;
12286 }
12287
12288 (*orig_arg)++;
12289 return ACT_RET_PRS_OK;
12290}
12291
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12292/* This function executes the "capture" action. It executes a fetch expression,
12293 * turns the result into a string and puts it in a capture slot. It always
12294 * returns 1. If an error occurs the action is cancelled, but the rule
12295 * processing continues.
12296 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12297enum act_return http_action_req_capture(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12298 struct session *sess, struct stream *s, int flags)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12299{
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12300 struct sample *key;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12301 struct cap_hdr *h = rule->arg.cap.hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12302 char **cap = s->req_cap;
12303 int len;
12304
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12305 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]12306 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12307 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12308
12309 if (cap[h->index] == NULL)
12310 cap[h->index] = pool_alloc2(h->pool);
12311
12312 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12313 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12314
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12315 len = key->data.u.str.len;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12316 if (len > h->len)
12317 len = h->len;
12318
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12319 memcpy(cap[h->index], key->data.u.str.str, len);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12320 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12321 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12322}
12323
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12324/* This function executes the "capture" action and store the result in a
12325 * capture slot if exists. It executes a fetch expression, turns the result
12326 * into a string and puts it in a capture slot. It always returns 1. If an
12327 * error occurs the action is cancelled, but the rule processing continues.
12328 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12329enum 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]12330 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12331{
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12332 struct sample *key;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12333 struct cap_hdr *h;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12334 char **cap = s->req_cap;
12335 struct proxy *fe = strm_fe(s);
12336 int len;
12337 int i;
12338
12339 /* Look for the original configuration. */
12340 for (h = fe->req_cap, i = fe->nb_req_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12341 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12342 i--, h = h->next);
12343 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12344 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12345
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12346 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]12347 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12348 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12349
12350 if (cap[h->index] == NULL)
12351 cap[h->index] = pool_alloc2(h->pool);
12352
12353 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12354 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12355
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12356 len = key->data.u.str.len;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12357 if (len > h->len)
12358 len = h->len;
12359
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12360 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12361 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12362 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12363}
12364
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12365/* parse an "http-request capture" action. It takes a single argument which is
12366 * a sample fetch expression. It stores the expression into arg->act.p[0] and
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12367 * the allocated hdr_cap struct or the preallocated "id" into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12368 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12369 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12370enum act_parse_ret parse_http_req_capture(const char **args, int *orig_arg, struct proxy *px,
12371 struct act_rule *rule, char **err)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12372{
12373 struct sample_expr *expr;
12374 struct cap_hdr *hdr;
12375 int cur_arg;
Willy Tarreau3986ac12015-05-08 16:13:42 +0200[diff] [blame]12376 int len = 0;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12377
12378 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12379 if (strcmp(args[cur_arg], "if") == 0 ||
12380 strcmp(args[cur_arg], "unless") == 0)
12381 break;
12382
12383 if (cur_arg < *orig_arg + 3) {
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12384 memprintf(err, "expects <expression> [ 'len' <length> | id <idx> ]");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12385 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12386 }
12387
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12388 cur_arg = *orig_arg;
12389 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12390 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12391 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12392
12393 if (!(expr->fetch->val & SMP_VAL_FE_HRQ_HDR)) {
12394 memprintf(err,
12395 "fetch method '%s' extracts information from '%s', none of which is available here",
12396 args[cur_arg-1], sample_src_names(expr->fetch->use));
12397 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12398 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12399 }
12400
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12401 if (!args[cur_arg] || !*args[cur_arg]) {
12402 memprintf(err, "expects 'len or 'id'");
12403 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12404 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12405 }
12406
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12407 if (strcmp(args[cur_arg], "len") == 0) {
12408 cur_arg++;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12409
12410 if (!(px->cap & PR_CAP_FE)) {
12411 memprintf(err, "proxy '%s' has no frontend capability", px->id);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12412 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12413 }
12414
12415 proxy->conf.args.ctx = ARGC_CAP;
12416
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12417 if (!args[cur_arg]) {
12418 memprintf(err, "missing length value");
12419 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12420 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12421 }
12422 /* we copy the table name for now, it will be resolved later */
12423 len = atoi(args[cur_arg]);
12424 if (len <= 0) {
12425 memprintf(err, "length must be > 0");
12426 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12427 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12428 }
12429 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12430
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12431 if (!len) {
12432 memprintf(err, "a positive 'len' argument is mandatory");
12433 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12434 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12435 }
12436
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]12437 hdr = calloc(1, sizeof(*hdr));
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12438 hdr->next = px->req_cap;
12439 hdr->name = NULL; /* not a header capture */
12440 hdr->namelen = 0;
12441 hdr->len = len;
12442 hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED);
12443 hdr->index = px->nb_req_cap++;
12444
12445 px->req_cap = hdr;
12446 px->to_log |= LW_REQHDR;
12447
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12448 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12449 rule->action_ptr = http_action_req_capture;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12450 rule->arg.cap.expr = expr;
12451 rule->arg.cap.hdr = hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12452 }
12453
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12454 else if (strcmp(args[cur_arg], "id") == 0) {
12455 int id;
12456 char *error;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12457
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12458 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12459
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12460 if (!args[cur_arg]) {
12461 memprintf(err, "missing id value");
12462 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12463 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12464 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12465
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12466 id = strtol(args[cur_arg], &error, 10);
12467 if (*error != '\0') {
12468 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12469 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12470 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12471 }
12472 cur_arg++;
12473
12474 proxy->conf.args.ctx = ARGC_CAP;
12475
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12476 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12477 rule->action_ptr = http_action_req_capture_by_id;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12478 rule->arg.capid.expr = expr;
12479 rule->arg.capid.idx = id;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12480 }
12481
12482 else {
12483 memprintf(err, "expects 'len' or 'id', found '%s'", args[cur_arg]);
12484 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12485 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12486 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12487
12488 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12489 return ACT_RET_PRS_OK;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12490}
12491
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12492/* This function executes the "capture" action and store the result in a
12493 * capture slot if exists. It executes a fetch expression, turns the result
12494 * into a string and puts it in a capture slot. It always returns 1. If an
12495 * error occurs the action is cancelled, but the rule processing continues.
12496 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12497enum 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]12498 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12499{
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12500 struct sample *key;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12501 struct cap_hdr *h;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12502 char **cap = s->res_cap;
12503 struct proxy *fe = strm_fe(s);
12504 int len;
12505 int i;
12506
12507 /* Look for the original configuration. */
12508 for (h = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12509 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12510 i--, h = h->next);
12511 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12512 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12513
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12514 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]12515 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12516 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12517
12518 if (cap[h->index] == NULL)
12519 cap[h->index] = pool_alloc2(h->pool);
12520
12521 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12522 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12523
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12524 len = key->data.u.str.len;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12525 if (len > h->len)
12526 len = h->len;
12527
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12528 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12529 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12530 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12531}
12532
12533/* parse an "http-response capture" action. It takes a single argument which is
12534 * a sample fetch expression. It stores the expression into arg->act.p[0] and
12535 * the allocated hdr_cap struct od the preallocated id into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12536 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12537 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12538enum act_parse_ret parse_http_res_capture(const char **args, int *orig_arg, struct proxy *px,
12539 struct act_rule *rule, char **err)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12540{
12541 struct sample_expr *expr;
12542 int cur_arg;
12543 int id;
12544 char *error;
12545
12546 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12547 if (strcmp(args[cur_arg], "if") == 0 ||
12548 strcmp(args[cur_arg], "unless") == 0)
12549 break;
12550
12551 if (cur_arg < *orig_arg + 3) {
12552 memprintf(err, "expects <expression> [ 'len' <length> | id <idx> ]");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12553 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12554 }
12555
12556 cur_arg = *orig_arg;
12557 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12558 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12559 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12560
12561 if (!(expr->fetch->val & SMP_VAL_FE_HRS_HDR)) {
12562 memprintf(err,
12563 "fetch method '%s' extracts information from '%s', none of which is available here",
12564 args[cur_arg-1], sample_src_names(expr->fetch->use));
12565 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12566 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12567 }
12568
12569 if (!args[cur_arg] || !*args[cur_arg]) {
12570 memprintf(err, "expects 'len or 'id'");
12571 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12572 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12573 }
12574
12575 if (strcmp(args[cur_arg], "id") != 0) {
12576 memprintf(err, "expects 'id', found '%s'", args[cur_arg]);
12577 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12578 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12579 }
12580
12581 cur_arg++;
12582
12583 if (!args[cur_arg]) {
12584 memprintf(err, "missing id value");
12585 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12586 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12587 }
12588
12589 id = strtol(args[cur_arg], &error, 10);
12590 if (*error != '\0') {
12591 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12592 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12593 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12594 }
12595 cur_arg++;
12596
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12597 proxy->conf.args.ctx = ARGC_CAP;
12598
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12599 rule->action = ACT_CUSTOM;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12600 rule->action_ptr = http_action_res_capture_by_id;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12601 rule->arg.capid.expr = expr;
12602 rule->arg.capid.idx = id;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12603
12604 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12605 return ACT_RET_PRS_OK;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12606}
12607
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12608/*
12609 * Return the struct http_req_action_kw associated to a keyword.
12610 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12611struct action_kw *action_http_req_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12612{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12613 return action_lookup(&http_req_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12614}
12615
12616/*
12617 * Return the struct http_res_action_kw associated to a keyword.
12618 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12619struct action_kw *action_http_res_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12620{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12621 return action_lookup(&http_res_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12622}
12623
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12624/************************************************************************/
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12625/* All supported ACL keywords must be declared here. */
12626/************************************************************************/
12627
12628/* Note: must not be declared <const> as its list will be overwritten.
12629 * Please take care of keeping this list alphabetically sorted.
12630 */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12631static struct acl_kw_list acl_kws = {ILH, {
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12632 { "base", "base", PAT_MATCH_STR },
12633 { "base_beg", "base", PAT_MATCH_BEG },
12634 { "base_dir", "base", PAT_MATCH_DIR },
12635 { "base_dom", "base", PAT_MATCH_DOM },
12636 { "base_end", "base", PAT_MATCH_END },
12637 { "base_len", "base", PAT_MATCH_LEN },
12638 { "base_reg", "base", PAT_MATCH_REG },
12639 { "base_sub", "base", PAT_MATCH_SUB },
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]12640
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12641 { "cook", "req.cook", PAT_MATCH_STR },
12642 { "cook_beg", "req.cook", PAT_MATCH_BEG },
12643 { "cook_dir", "req.cook", PAT_MATCH_DIR },
12644 { "cook_dom", "req.cook", PAT_MATCH_DOM },
12645 { "cook_end", "req.cook", PAT_MATCH_END },
12646 { "cook_len", "req.cook", PAT_MATCH_LEN },
12647 { "cook_reg", "req.cook", PAT_MATCH_REG },
12648 { "cook_sub", "req.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12649
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12650 { "hdr", "req.hdr", PAT_MATCH_STR },
12651 { "hdr_beg", "req.hdr", PAT_MATCH_BEG },
12652 { "hdr_dir", "req.hdr", PAT_MATCH_DIR },
12653 { "hdr_dom", "req.hdr", PAT_MATCH_DOM },
12654 { "hdr_end", "req.hdr", PAT_MATCH_END },
12655 { "hdr_len", "req.hdr", PAT_MATCH_LEN },
12656 { "hdr_reg", "req.hdr", PAT_MATCH_REG },
12657 { "hdr_sub", "req.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12658
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12659 /* these two declarations uses strings with list storage (in place
12660 * of tree storage). The basic match is PAT_MATCH_STR, but the indexation
12661 * and delete functions are relative to the list management. The parse
12662 * and match method are related to the corresponding fetch methods. This
12663 * is very particular ACL declaration mode.
12664 */
12665 { "http_auth_group", NULL, PAT_MATCH_STR, NULL, pat_idx_list_str, pat_del_list_ptr, NULL, pat_match_auth },
12666 { "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]12667
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12668 { "path", "path", PAT_MATCH_STR },
12669 { "path_beg", "path", PAT_MATCH_BEG },
12670 { "path_dir", "path", PAT_MATCH_DIR },
12671 { "path_dom", "path", PAT_MATCH_DOM },
12672 { "path_end", "path", PAT_MATCH_END },
12673 { "path_len", "path", PAT_MATCH_LEN },
12674 { "path_reg", "path", PAT_MATCH_REG },
12675 { "path_sub", "path", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12676
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12677 { "req_ver", "req.ver", PAT_MATCH_STR },
12678 { "resp_ver", "res.ver", PAT_MATCH_STR },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12679
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12680 { "scook", "res.cook", PAT_MATCH_STR },
12681 { "scook_beg", "res.cook", PAT_MATCH_BEG },
12682 { "scook_dir", "res.cook", PAT_MATCH_DIR },
12683 { "scook_dom", "res.cook", PAT_MATCH_DOM },
12684 { "scook_end", "res.cook", PAT_MATCH_END },
12685 { "scook_len", "res.cook", PAT_MATCH_LEN },
12686 { "scook_reg", "res.cook", PAT_MATCH_REG },
12687 { "scook_sub", "res.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12688
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12689 { "shdr", "res.hdr", PAT_MATCH_STR },
12690 { "shdr_beg", "res.hdr", PAT_MATCH_BEG },
12691 { "shdr_dir", "res.hdr", PAT_MATCH_DIR },
12692 { "shdr_dom", "res.hdr", PAT_MATCH_DOM },
12693 { "shdr_end", "res.hdr", PAT_MATCH_END },
12694 { "shdr_len", "res.hdr", PAT_MATCH_LEN },
12695 { "shdr_reg", "res.hdr", PAT_MATCH_REG },
12696 { "shdr_sub", "res.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12697
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12698 { "url", "url", PAT_MATCH_STR },
12699 { "url_beg", "url", PAT_MATCH_BEG },
12700 { "url_dir", "url", PAT_MATCH_DIR },
12701 { "url_dom", "url", PAT_MATCH_DOM },
12702 { "url_end", "url", PAT_MATCH_END },
12703 { "url_len", "url", PAT_MATCH_LEN },
12704 { "url_reg", "url", PAT_MATCH_REG },
12705 { "url_sub", "url", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12706
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12707 { "urlp", "urlp", PAT_MATCH_STR },
12708 { "urlp_beg", "urlp", PAT_MATCH_BEG },
12709 { "urlp_dir", "urlp", PAT_MATCH_DIR },
12710 { "urlp_dom", "urlp", PAT_MATCH_DOM },
12711 { "urlp_end", "urlp", PAT_MATCH_END },
12712 { "urlp_len", "urlp", PAT_MATCH_LEN },
12713 { "urlp_reg", "urlp", PAT_MATCH_REG },
12714 { "urlp_sub", "urlp", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12715
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100[diff] [blame]12716 { /* END */ },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12717}};
12718
12719/************************************************************************/
12720/* All supported pattern keywords must be declared here. */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12721/************************************************************************/
12722/* Note: must not be declared <const> as its list will be overwritten */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12723static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12724 { "base", smp_fetch_base, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12725 { "base32", smp_fetch_base32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12726 { "base32+src", smp_fetch_base32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12727
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]12728 /* capture are allocated and are permanent in the stream */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12729 { "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]12730
12731 /* retrieve these captures from the HTTP logs */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12732 { "capture.req.method", smp_fetch_capture_req_method, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12733 { "capture.req.uri", smp_fetch_capture_req_uri, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12734 { "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]12735
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12736 { "capture.res.hdr", smp_fetch_capture_header_res, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRSHP },
12737 { "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]12738
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12739 /* cookie is valid in both directions (eg: for "stick ...") but cook*
12740 * are only here to match the ACL's name, are request-only and are used
12741 * for ACL compatibility only.
12742 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12743 { "cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12744 { "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]12745 { "cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12746 { "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]12747
12748 /* hdr is valid in both directions (eg: for "stick ...") but hdr_* are
12749 * only here to match the ACL's name, are request-only and are used for
12750 * ACL compatibility only.
12751 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12752 { "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]12753 { "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]12754 { "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]12755 { "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]12756
Willy Tarreau0a0daec2013-04-02 22:44:58 +0200[diff] [blame]12757 { "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]12758 { "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]12759 { "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]12760 { "method", smp_fetch_meth, 0, NULL, SMP_T_METH, SMP_USE_HRQHP },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12761 { "path", smp_fetch_path, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]12762 { "query", smp_fetch_query, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12763
12764 /* HTTP protocol on the request path */
12765 { "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]12766 { "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]12767
12768 /* HTTP version on the request path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12769 { "req.ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
12770 { "req_ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12771
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]12772 { "req.body", smp_fetch_body, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12773 { "req.body_len", smp_fetch_body_len, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
12774 { "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]12775 { "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]12776
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12777 /* HTTP version on the response path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12778 { "res.ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
12779 { "resp_ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12780
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12781 /* 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]12782 { "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]12783 { "req.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12784 { "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]12785
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12786 { "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]12787 { "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]12788 { "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]12789 { "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]12790 { "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]12791 { "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]12792 { "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]12793
12794 /* 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]12795 { "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]12796 { "res.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12797 { "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]12798
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12799 { "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]12800 { "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]12801 { "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]12802 { "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]12803 { "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]12804 { "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]12805 { "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]12806
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12807 /* scook is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12808 { "scook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12809 { "scook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12810 { "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]12811 { "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]12812
12813 /* shdr is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12814 { "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]12815 { "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]12816 { "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]12817 { "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]12818
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12819 { "status", smp_fetch_stcode, 0, NULL, SMP_T_SINT, SMP_USE_HRSHP },
Thierry Fournier0e00dca2016-04-07 15:47:40 +0200[diff] [blame]12820 { "unique-id", smp_fetch_uniqueid, 0, NULL, SMP_T_STR, SMP_SRC_L4SRV },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12821 { "url", smp_fetch_url, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12822 { "url32", smp_fetch_url32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]12823 { "url32+src", smp_fetch_url32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12824 { "url_ip", smp_fetch_url_ip, 0, NULL, SMP_T_IPV4, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12825 { "url_port", smp_fetch_url_port, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]12826 { "url_param", smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12827 { "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]12828 { "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]12829 { /* END */ },
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12830}};
12831
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12832
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12833/************************************************************************/
12834/* All supported converter keywords must be declared here. */
12835/************************************************************************/
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12836/* Note: must not be declared <const> as its list will be overwritten */
12837static struct sample_conv_kw_list sample_conv_kws = {ILH, {
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12838 { "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]12839 { "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]12840 { "capture-req", smp_conv_req_capture, ARG1(1,SINT), NULL, SMP_T_STR, SMP_T_STR},
12841 { "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]12842 { "url_dec", sample_conv_url_dec, 0, NULL, SMP_T_STR, SMP_T_STR},
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12843 { NULL, NULL, 0, 0, 0 },
12844}};
12845
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12846
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12847/************************************************************************/
12848/* All supported http-request action keywords must be declared here. */
12849/************************************************************************/
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12850struct action_kw_list http_req_actions = {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12851 .kw = {
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12852 { "capture", parse_http_req_capture },
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12853 { "set-method", parse_set_req_line },
12854 { "set-path", parse_set_req_line },
12855 { "set-query", parse_set_req_line },
12856 { "set-uri", parse_set_req_line },
Willy Tarreaucb703b02015-04-03 09:52:01 +0200[diff] [blame]12857 { NULL, NULL }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12858 }
12859};
12860
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12861struct action_kw_list http_res_actions = {
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12862 .kw = {
12863 { "capture", parse_http_res_capture },
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12864 { "set-status", parse_http_set_status },
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12865 { NULL, NULL }
12866 }
12867};
12868
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12869__attribute__((constructor))
12870static void __http_protocol_init(void)
12871{
12872 acl_register_keywords(&acl_kws);
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]12873 sample_register_fetches(&sample_fetch_keywords);
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12874 sample_register_convs(&sample_conv_kws);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12875 http_req_keywords_register(&http_req_actions);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12876 http_res_keywords_register(&http_res_actions);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12877}
12878
12879
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]12880/*
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]12881 * Local variables:
12882 * c-indent-level: 8
12883 * c-basic-offset: 8
12884 * End:
12885 */