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git01.mediatek.com / haproxy / 0ebb511b3ea1b4b00410cedfec5c6bef47d4831a / . / src / proto_http.c
blob: a92e716c7a1b7365a866cbae05a260813bdcaa28 [file] [log] [blame]
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1/*
2 * HTTP protocol analyzer
3 *
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]4 * Copyright 2000-2011 Willy Tarreau <w@1wt.eu>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
13#include <ctype.h>
14#include <errno.h>
15#include <fcntl.h>
16#include <stdio.h>
17#include <stdlib.h>
18#include <string.h>
19#include <syslog.h>
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]20#include <time.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]21
22#include <sys/socket.h>
23#include <sys/stat.h>
24#include <sys/types.h>
25
Willy Tarreaub05405a2012-01-23 15:35:52 +0100[diff] [blame]26#include <netinet/tcp.h>
27
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]28#include <common/base64.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200[diff] [blame]29#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +0200[diff] [blame]30#include <common/compat.h>
31#include <common/config.h>
Willy Tarreaua4cd1f52006-12-16 19:57:26 +0100[diff] [blame]32#include <common/debug.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +0200[diff] [blame]33#include <common/memory.h>
34#include <common/mini-clist.h>
35#include <common/standard.h>
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200[diff] [blame]36#include <common/ticks.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +0200[diff] [blame]37#include <common/time.h>
38#include <common/uri_auth.h>
39#include <common/version.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]40
41#include <types/capture.h>
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]42#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]43#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]44#include <types/global.h>
William Lallemand9ed62032016-11-21 17:49:11 +0100[diff] [blame]45#include <types/stats.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]46
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]47#include <proto/acl.h>
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]48#include <proto/action.h>
Willy Tarreau61612d42012-04-19 18:42:05 +0200[diff] [blame]49#include <proto/arg.h>
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]50#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]51#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200[diff] [blame]52#include <proto/channel.h>
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]53#include <proto/checks.h>
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]54#include <proto/cli.h>
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]55#include <proto/compression.h>
William Lallemand9ed62032016-11-21 17:49:11 +0100[diff] [blame]56#include <proto/stats.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]57#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]58#include <proto/filters.h>
Willy Tarreau03fa5df2010-05-24 21:02:37 +0200[diff] [blame]59#include <proto/frontend.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]60#include <proto/log.h>
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]61#include <proto/hdr_idx.h>
Thierry FOURNIERed66c292013-11-28 11:05:19 +0100[diff] [blame]62#include <proto/pattern.h>
Willy Tarreaub6866442008-07-14 23:54:42 +0200[diff] [blame]63#include <proto/proto_tcp.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]64#include <proto/proto_http.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +0100[diff] [blame]65#include <proto/proxy.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]66#include <proto/queue.h>
Willy Tarreaucd3b0942012-04-27 21:52:18 +0200[diff] [blame]67#include <proto/sample.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +0100[diff] [blame]68#include <proto/server.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]69#include <proto/stream.h>
Willy Tarreaucff64112008-11-03 06:26:53 +0100[diff] [blame]70#include <proto/stream_interface.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]71#include <proto/task.h>
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]72#include <proto/pattern.h>
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]73#include <proto/vars.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]74
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]75const char HTTP_100[] =
76 "HTTP/1.1 100 Continue\r\n\r\n";
77
78const struct chunk http_100_chunk = {
79 .str = (char *)&HTTP_100,
80 .len = sizeof(HTTP_100)-1
81};
82
Willy Tarreaua9679ac2010-01-03 17:32:57 +0100[diff] [blame]83/* Warning: no "connection" header is provided with the 3xx messages below */
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200[diff] [blame]84const char *HTTP_301 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]85 "HTTP/1.1 301 Moved Permanently\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]86 "Content-length: 0\r\n"
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200[diff] [blame]87 "Location: "; /* not terminated since it will be concatenated with the URL */
88
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]89const char *HTTP_302 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]90 "HTTP/1.1 302 Found\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]91 "Cache-Control: no-cache\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]92 "Content-length: 0\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]93 "Location: "; /* not terminated since it will be concatenated with the URL */
94
95/* same as 302 except that the browser MUST retry with the GET method */
96const char *HTTP_303 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]97 "HTTP/1.1 303 See Other\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]98 "Cache-Control: no-cache\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]99 "Content-length: 0\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]100 "Location: "; /* not terminated since it will be concatenated with the URL */
101
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]102
103/* same as 302 except that the browser MUST retry with the same method */
104const char *HTTP_307 =
105 "HTTP/1.1 307 Temporary Redirect\r\n"
106 "Cache-Control: no-cache\r\n"
107 "Content-length: 0\r\n"
108 "Location: "; /* not terminated since it will be concatenated with the URL */
109
110/* same as 301 except that the browser MUST retry with the same method */
111const char *HTTP_308 =
112 "HTTP/1.1 308 Permanent Redirect\r\n"
113 "Content-length: 0\r\n"
114 "Location: "; /* not terminated since it will be concatenated with the URL */
115
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]116/* Warning: this one is an sprintf() fmt string, with <realm> as its only argument */
117const char *HTTP_401_fmt =
118 "HTTP/1.0 401 Unauthorized\r\n"
119 "Cache-Control: no-cache\r\n"
120 "Connection: close\r\n"
Willy Tarreau791d66d2006-07-08 16:53:38 +0200[diff] [blame]121 "Content-Type: text/html\r\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]122 "WWW-Authenticate: Basic realm=\"%s\"\r\n"
123 "\r\n"
124 "<html><body><h1>401 Unauthorized</h1>\nYou need a valid user and password to access this content.\n</body></html>\n";
125
Willy Tarreau844a7e72010-01-31 21:46:18 +0100[diff] [blame]126const char *HTTP_407_fmt =
127 "HTTP/1.0 407 Unauthorized\r\n"
128 "Cache-Control: no-cache\r\n"
129 "Connection: close\r\n"
130 "Content-Type: text/html\r\n"
131 "Proxy-Authenticate: Basic realm=\"%s\"\r\n"
132 "\r\n"
Godbach1f1fae62014-12-17 16:32:05 +0800[diff] [blame]133 "<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]134
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]135
136const int http_err_codes[HTTP_ERR_SIZE] = {
Willy Tarreauae94d4d2011-05-11 16:28:49 +0200[diff] [blame]137 [HTTP_ERR_200] = 200, /* used by "monitor-uri" */
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]138 [HTTP_ERR_400] = 400,
139 [HTTP_ERR_403] = 403,
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]140 [HTTP_ERR_405] = 405,
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]141 [HTTP_ERR_408] = 408,
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]142 [HTTP_ERR_429] = 429,
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]143 [HTTP_ERR_500] = 500,
144 [HTTP_ERR_502] = 502,
145 [HTTP_ERR_503] = 503,
146 [HTTP_ERR_504] = 504,
147};
148
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]149static const char *http_err_msgs[HTTP_ERR_SIZE] = {
Willy Tarreauae94d4d2011-05-11 16:28:49 +0200[diff] [blame]150 [HTTP_ERR_200] =
151 "HTTP/1.0 200 OK\r\n"
152 "Cache-Control: no-cache\r\n"
153 "Connection: close\r\n"
154 "Content-Type: text/html\r\n"
155 "\r\n"
156 "<html><body><h1>200 OK</h1>\nService ready.\n</body></html>\n",
157
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]158 [HTTP_ERR_400] =
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]159 "HTTP/1.0 400 Bad request\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]160 "Cache-Control: no-cache\r\n"
161 "Connection: close\r\n"
162 "Content-Type: text/html\r\n"
163 "\r\n"
164 "<html><body><h1>400 Bad request</h1>\nYour browser sent an invalid request.\n</body></html>\n",
165
166 [HTTP_ERR_403] =
167 "HTTP/1.0 403 Forbidden\r\n"
168 "Cache-Control: no-cache\r\n"
169 "Connection: close\r\n"
170 "Content-Type: text/html\r\n"
171 "\r\n"
172 "<html><body><h1>403 Forbidden</h1>\nRequest forbidden by administrative rules.\n</body></html>\n",
173
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]174 [HTTP_ERR_405] =
175 "HTTP/1.0 405 Method Not Allowed\r\n"
176 "Cache-Control: no-cache\r\n"
177 "Connection: close\r\n"
178 "Content-Type: text/html\r\n"
179 "\r\n"
180 "<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",
181
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]182 [HTTP_ERR_408] =
183 "HTTP/1.0 408 Request Time-out\r\n"
184 "Cache-Control: no-cache\r\n"
185 "Connection: close\r\n"
186 "Content-Type: text/html\r\n"
187 "\r\n"
188 "<html><body><h1>408 Request Time-out</h1>\nYour browser didn't send a complete request in time.\n</body></html>\n",
189
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]190 [HTTP_ERR_429] =
191 "HTTP/1.0 429 Too Many Requests\r\n"
192 "Cache-Control: no-cache\r\n"
193 "Connection: close\r\n"
194 "Content-Type: text/html\r\n"
195 "\r\n"
196 "<html><body><h1>429 Too Many Requests</h1>\nYou have sent too many requests in a given amount of time.\n</body></html>\n",
197
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]198 [HTTP_ERR_500] =
199 "HTTP/1.0 500 Server Error\r\n"
200 "Cache-Control: no-cache\r\n"
201 "Connection: close\r\n"
202 "Content-Type: text/html\r\n"
203 "\r\n"
204 "<html><body><h1>500 Server Error</h1>\nAn internal server error occured.\n</body></html>\n",
205
206 [HTTP_ERR_502] =
207 "HTTP/1.0 502 Bad Gateway\r\n"
208 "Cache-Control: no-cache\r\n"
209 "Connection: close\r\n"
210 "Content-Type: text/html\r\n"
211 "\r\n"
212 "<html><body><h1>502 Bad Gateway</h1>\nThe server returned an invalid or incomplete response.\n</body></html>\n",
213
214 [HTTP_ERR_503] =
215 "HTTP/1.0 503 Service Unavailable\r\n"
216 "Cache-Control: no-cache\r\n"
217 "Connection: close\r\n"
218 "Content-Type: text/html\r\n"
219 "\r\n"
220 "<html><body><h1>503 Service Unavailable</h1>\nNo server is available to handle this request.\n</body></html>\n",
221
222 [HTTP_ERR_504] =
223 "HTTP/1.0 504 Gateway Time-out\r\n"
224 "Cache-Control: no-cache\r\n"
225 "Connection: close\r\n"
226 "Content-Type: text/html\r\n"
227 "\r\n"
228 "<html><body><h1>504 Gateway Time-out</h1>\nThe server didn't respond in time.\n</body></html>\n",
229
230};
231
Cyril Bonté19979e12012-04-04 12:57:21 +0200[diff] [blame]232/* status codes available for the stats admin page (strictly 4 chars length) */
233const char *stat_status_codes[STAT_STATUS_SIZE] = {
234 [STAT_STATUS_DENY] = "DENY",
235 [STAT_STATUS_DONE] = "DONE",
236 [STAT_STATUS_ERRP] = "ERRP",
237 [STAT_STATUS_EXCD] = "EXCD",
238 [STAT_STATUS_NONE] = "NONE",
239 [STAT_STATUS_PART] = "PART",
240 [STAT_STATUS_UNKN] = "UNKN",
241};
242
243
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]244/* List head of all known action keywords for "http-request" */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]245struct action_kw_list http_req_keywords = {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]246 .list = LIST_HEAD_INIT(http_req_keywords.list)
247};
248
249/* List head of all known action keywords for "http-response" */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]250struct action_kw_list http_res_keywords = {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]251 .list = LIST_HEAD_INIT(http_res_keywords.list)
252};
253
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]254/* We must put the messages here since GCC cannot initialize consts depending
255 * on strlen().
256 */
257struct chunk http_err_chunks[HTTP_ERR_SIZE];
258
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]259/* this struct is used between calls to smp_fetch_hdr() or smp_fetch_cookie() */
260static struct hdr_ctx static_hdr_ctx;
261
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]262#define FD_SETS_ARE_BITFIELDS
263#ifdef FD_SETS_ARE_BITFIELDS
264/*
265 * This map is used with all the FD_* macros to check whether a particular bit
266 * is set or not. Each bit represents an ACSII code. FD_SET() sets those bytes
267 * which should be encoded. When FD_ISSET() returns non-zero, it means that the
268 * byte should be encoded. Be careful to always pass bytes from 0 to 255
269 * exclusively to the macros.
270 */
271fd_set hdr_encode_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
272fd_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]273fd_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]274
275#else
276#error "Check if your OS uses bitfields for fd_sets"
277#endif
278
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]279static 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]280
David Carlier7365f7d2016-04-04 11:54:42 +0100[diff] [blame]281static inline int http_msg_forward_body(struct stream *s, struct http_msg *msg);
282static inline int http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]283
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]284/* This function returns a reason associated with the HTTP status.
285 * This function never fails, a message is always returned.
286 */
287const char *get_reason(unsigned int status)
288{
289 switch (status) {
290 case 100: return "Continue";
291 case 101: return "Switching Protocols";
292 case 102: return "Processing";
293 case 200: return "OK";
294 case 201: return "Created";
295 case 202: return "Accepted";
296 case 203: return "Non-Authoritative Information";
297 case 204: return "No Content";
298 case 205: return "Reset Content";
299 case 206: return "Partial Content";
300 case 207: return "Multi-Status";
301 case 210: return "Content Different";
302 case 226: return "IM Used";
303 case 300: return "Multiple Choices";
304 case 301: return "Moved Permanently";
305 case 302: return "Moved Temporarily";
306 case 303: return "See Other";
307 case 304: return "Not Modified";
308 case 305: return "Use Proxy";
309 case 307: return "Temporary Redirect";
310 case 308: return "Permanent Redirect";
311 case 310: return "Too many Redirects";
312 case 400: return "Bad Request";
313 case 401: return "Unauthorized";
314 case 402: return "Payment Required";
315 case 403: return "Forbidden";
316 case 404: return "Not Found";
317 case 405: return "Method Not Allowed";
318 case 406: return "Not Acceptable";
319 case 407: return "Proxy Authentication Required";
320 case 408: return "Request Time-out";
321 case 409: return "Conflict";
322 case 410: return "Gone";
323 case 411: return "Length Required";
324 case 412: return "Precondition Failed";
325 case 413: return "Request Entity Too Large";
326 case 414: return "Request-URI Too Long";
327 case 415: return "Unsupported Media Type";
328 case 416: return "Requested range unsatisfiable";
329 case 417: return "Expectation failed";
330 case 418: return "I'm a teapot";
331 case 422: return "Unprocessable entity";
332 case 423: return "Locked";
333 case 424: return "Method failure";
334 case 425: return "Unordered Collection";
335 case 426: return "Upgrade Required";
336 case 428: return "Precondition Required";
337 case 429: return "Too Many Requests";
338 case 431: return "Request Header Fields Too Large";
339 case 449: return "Retry With";
340 case 450: return "Blocked by Windows Parental Controls";
341 case 451: return "Unavailable For Legal Reasons";
342 case 456: return "Unrecoverable Error";
343 case 499: return "client has closed connection";
344 case 500: return "Internal Server Error";
345 case 501: return "Not Implemented";
346 case 502: return "Bad Gateway ou Proxy Error";
347 case 503: return "Service Unavailable";
348 case 504: return "Gateway Time-out";
349 case 505: return "HTTP Version not supported";
350 case 506: return "Variant also negociate";
351 case 507: return "Insufficient storage";
352 case 508: return "Loop detected";
353 case 509: return "Bandwidth Limit Exceeded";
354 case 510: return "Not extended";
355 case 511: return "Network authentication required";
356 case 520: return "Web server is returning an unknown error";
357 default:
358 switch (status) {
359 case 100 ... 199: return "Informational";
360 case 200 ... 299: return "Success";
361 case 300 ... 399: return "Redirection";
362 case 400 ... 499: return "Client Error";
363 case 500 ... 599: return "Server Error";
364 default: return "Other";
365 }
366 }
367}
368
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]369void init_proto_http()
370{
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]371 int i;
372 char *tmp;
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]373 int msg;
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]374
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]375 for (msg = 0; msg < HTTP_ERR_SIZE; msg++) {
376 if (!http_err_msgs[msg]) {
377 Alert("Internal error: no message defined for HTTP return code %d. Aborting.\n", msg);
378 abort();
379 }
380
381 http_err_chunks[msg].str = (char *)http_err_msgs[msg];
382 http_err_chunks[msg].len = strlen(http_err_msgs[msg]);
383 }
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]384
385 /* initialize the log header encoding map : '{|}"#' should be encoded with
386 * '#' as prefix, as well as non-printable characters ( <32 or >= 127 ).
387 * URL encoding only requires '"', '#' to be encoded as well as non-
388 * printable characters above.
389 */
390 memset(hdr_encode_map, 0, sizeof(hdr_encode_map));
391 memset(url_encode_map, 0, sizeof(url_encode_map));
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]392 memset(http_encode_map, 0, sizeof(url_encode_map));
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]393 for (i = 0; i < 32; i++) {
394 FD_SET(i, hdr_encode_map);
395 FD_SET(i, url_encode_map);
396 }
397 for (i = 127; i < 256; i++) {
398 FD_SET(i, hdr_encode_map);
399 FD_SET(i, url_encode_map);
400 }
401
402 tmp = "\"#{|}";
403 while (*tmp) {
404 FD_SET(*tmp, hdr_encode_map);
405 tmp++;
406 }
407
408 tmp = "\"#";
409 while (*tmp) {
410 FD_SET(*tmp, url_encode_map);
411 tmp++;
412 }
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]413
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]414 /* initialize the http header encoding map. The draft httpbis define the
415 * header content as:
416 *
417 * HTTP-message = start-line
418 * *( header-field CRLF )
419 * CRLF
420 * [ message-body ]
421 * header-field = field-name ":" OWS field-value OWS
422 * field-value = *( field-content / obs-fold )
423 * field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
424 * obs-fold = CRLF 1*( SP / HTAB )
425 * field-vchar = VCHAR / obs-text
426 * VCHAR = %x21-7E
427 * obs-text = %x80-FF
428 *
429 * All the chars are encoded except "VCHAR", "obs-text", SP and HTAB.
430 * The encoded chars are form 0x00 to 0x08, 0x0a to 0x1f and 0x7f. The
431 * "obs-fold" is volontary forgotten because haproxy remove this.
432 */
433 memset(http_encode_map, 0, sizeof(http_encode_map));
434 for (i = 0x00; i <= 0x08; i++)
435 FD_SET(i, http_encode_map);
436 for (i = 0x0a; i <= 0x1f; i++)
437 FD_SET(i, http_encode_map);
438 FD_SET(0x7f, http_encode_map);
439
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]440 /* memory allocations */
Willy Tarreau63986c72015-04-03 22:55:33 +0200[diff] [blame]441 pool2_http_txn = create_pool("http_txn", sizeof(struct http_txn), MEM_F_SHARED);
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]442 pool2_requri = create_pool("requri", REQURI_LEN, MEM_F_SHARED);
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]443 pool2_uniqueid = create_pool("uniqueid", UNIQUEID_LEN, MEM_F_SHARED);
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]444}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]445
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]446/*
447 * We have 26 list of methods (1 per first letter), each of which can have
448 * up to 3 entries (2 valid, 1 null).
449 */
450struct http_method_desc {
Willy Tarreauc8987b32013-12-06 23:43:17 +0100[diff] [blame]451 enum http_meth_t meth;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]452 int len;
453 const char text[8];
454};
455
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]456const struct http_method_desc http_methods[26][3] = {
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]457 ['C' - 'A'] = {
458 [0] = { .meth = HTTP_METH_CONNECT , .len=7, .text="CONNECT" },
459 },
460 ['D' - 'A'] = {
461 [0] = { .meth = HTTP_METH_DELETE , .len=6, .text="DELETE" },
462 },
463 ['G' - 'A'] = {
464 [0] = { .meth = HTTP_METH_GET , .len=3, .text="GET" },
465 },
466 ['H' - 'A'] = {
467 [0] = { .meth = HTTP_METH_HEAD , .len=4, .text="HEAD" },
468 },
Christopher Fauletd57ad642015-07-31 14:26:57 +0200[diff] [blame]469 ['O' - 'A'] = {
470 [0] = { .meth = HTTP_METH_OPTIONS , .len=7, .text="OPTIONS" },
471 },
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]472 ['P' - 'A'] = {
473 [0] = { .meth = HTTP_METH_POST , .len=4, .text="POST" },
474 [1] = { .meth = HTTP_METH_PUT , .len=3, .text="PUT" },
475 },
476 ['T' - 'A'] = {
477 [0] = { .meth = HTTP_METH_TRACE , .len=5, .text="TRACE" },
478 },
479 /* rest is empty like this :
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]480 * [0] = { .meth = HTTP_METH_OTHER , .len=0, .text="" },
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]481 */
482};
483
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]484const struct http_method_name http_known_methods[HTTP_METH_OTHER] = {
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]485 [HTTP_METH_OPTIONS] = { "OPTIONS", 7 },
486 [HTTP_METH_GET] = { "GET", 3 },
487 [HTTP_METH_HEAD] = { "HEAD", 4 },
488 [HTTP_METH_POST] = { "POST", 4 },
489 [HTTP_METH_PUT] = { "PUT", 3 },
490 [HTTP_METH_DELETE] = { "DELETE", 6 },
491 [HTTP_METH_TRACE] = { "TRACE", 5 },
492 [HTTP_METH_CONNECT] = { "CONNECT", 7 },
493};
494
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]495/* 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]496 * table than to perform a boolean AND or OR between two tests. Refer to
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]497 * RFC2616/RFC5234/RFC7230 for those chars. A token is any ASCII char that is
498 * neither a separator nor a CTL char. An http ver_token is any ASCII which can
499 * be found in an HTTP version, which includes 'H', 'T', 'P', '/', '.' and any
500 * digit. Note: please do not overwrite values in assignment since gcc-2.95
501 * will not handle them correctly. It's worth noting that chars 128..255 are
502 * nothing, not even control chars.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]503 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]504const unsigned char http_char_classes[256] = {
505 [ 0] = HTTP_FLG_CTL,
506 [ 1] = HTTP_FLG_CTL,
507 [ 2] = HTTP_FLG_CTL,
508 [ 3] = HTTP_FLG_CTL,
509 [ 4] = HTTP_FLG_CTL,
510 [ 5] = HTTP_FLG_CTL,
511 [ 6] = HTTP_FLG_CTL,
512 [ 7] = HTTP_FLG_CTL,
513 [ 8] = HTTP_FLG_CTL,
514 [ 9] = HTTP_FLG_SPHT | HTTP_FLG_LWS | HTTP_FLG_SEP | HTTP_FLG_CTL,
515 [ 10] = HTTP_FLG_CRLF | HTTP_FLG_LWS | HTTP_FLG_CTL,
516 [ 11] = HTTP_FLG_CTL,
517 [ 12] = HTTP_FLG_CTL,
518 [ 13] = HTTP_FLG_CRLF | HTTP_FLG_LWS | HTTP_FLG_CTL,
519 [ 14] = HTTP_FLG_CTL,
520 [ 15] = HTTP_FLG_CTL,
521 [ 16] = HTTP_FLG_CTL,
522 [ 17] = HTTP_FLG_CTL,
523 [ 18] = HTTP_FLG_CTL,
524 [ 19] = HTTP_FLG_CTL,
525 [ 20] = HTTP_FLG_CTL,
526 [ 21] = HTTP_FLG_CTL,
527 [ 22] = HTTP_FLG_CTL,
528 [ 23] = HTTP_FLG_CTL,
529 [ 24] = HTTP_FLG_CTL,
530 [ 25] = HTTP_FLG_CTL,
531 [ 26] = HTTP_FLG_CTL,
532 [ 27] = HTTP_FLG_CTL,
533 [ 28] = HTTP_FLG_CTL,
534 [ 29] = HTTP_FLG_CTL,
535 [ 30] = HTTP_FLG_CTL,
536 [ 31] = HTTP_FLG_CTL,
537 [' '] = HTTP_FLG_SPHT | HTTP_FLG_LWS | HTTP_FLG_SEP,
538 ['!'] = HTTP_FLG_TOK,
539 ['"'] = HTTP_FLG_SEP,
540 ['#'] = HTTP_FLG_TOK,
541 ['$'] = HTTP_FLG_TOK,
542 ['%'] = HTTP_FLG_TOK,
543 ['&'] = HTTP_FLG_TOK,
544 [ 39] = HTTP_FLG_TOK,
545 ['('] = HTTP_FLG_SEP,
546 [')'] = HTTP_FLG_SEP,
547 ['*'] = HTTP_FLG_TOK,
548 ['+'] = HTTP_FLG_TOK,
549 [','] = HTTP_FLG_SEP,
550 ['-'] = HTTP_FLG_TOK,
551 ['.'] = HTTP_FLG_TOK | HTTP_FLG_VER,
552 ['/'] = HTTP_FLG_SEP | HTTP_FLG_VER,
553 ['0'] = HTTP_FLG_TOK | HTTP_FLG_VER,
554 ['1'] = HTTP_FLG_TOK | HTTP_FLG_VER,
555 ['2'] = HTTP_FLG_TOK | HTTP_FLG_VER,
556 ['3'] = HTTP_FLG_TOK | HTTP_FLG_VER,
557 ['4'] = HTTP_FLG_TOK | HTTP_FLG_VER,
558 ['5'] = HTTP_FLG_TOK | HTTP_FLG_VER,
559 ['6'] = HTTP_FLG_TOK | HTTP_FLG_VER,
560 ['7'] = HTTP_FLG_TOK | HTTP_FLG_VER,
561 ['8'] = HTTP_FLG_TOK | HTTP_FLG_VER,
562 ['9'] = HTTP_FLG_TOK | HTTP_FLG_VER,
563 [':'] = HTTP_FLG_SEP,
564 [';'] = HTTP_FLG_SEP,
565 ['<'] = HTTP_FLG_SEP,
566 ['='] = HTTP_FLG_SEP,
567 ['>'] = HTTP_FLG_SEP,
568 ['?'] = HTTP_FLG_SEP,
569 ['@'] = HTTP_FLG_SEP,
570 ['A'] = HTTP_FLG_TOK,
571 ['B'] = HTTP_FLG_TOK,
572 ['C'] = HTTP_FLG_TOK,
573 ['D'] = HTTP_FLG_TOK,
574 ['E'] = HTTP_FLG_TOK,
575 ['F'] = HTTP_FLG_TOK,
576 ['G'] = HTTP_FLG_TOK,
577 ['H'] = HTTP_FLG_TOK | HTTP_FLG_VER,
578 ['I'] = HTTP_FLG_TOK,
579 ['J'] = HTTP_FLG_TOK,
580 ['K'] = HTTP_FLG_TOK,
581 ['L'] = HTTP_FLG_TOK,
582 ['M'] = HTTP_FLG_TOK,
583 ['N'] = HTTP_FLG_TOK,
584 ['O'] = HTTP_FLG_TOK,
585 ['P'] = HTTP_FLG_TOK | HTTP_FLG_VER,
586 ['Q'] = HTTP_FLG_TOK,
587 ['R'] = HTTP_FLG_TOK | HTTP_FLG_VER,
588 ['S'] = HTTP_FLG_TOK | HTTP_FLG_VER,
589 ['T'] = HTTP_FLG_TOK | HTTP_FLG_VER,
590 ['U'] = HTTP_FLG_TOK,
591 ['V'] = HTTP_FLG_TOK,
592 ['W'] = HTTP_FLG_TOK,
593 ['X'] = HTTP_FLG_TOK,
594 ['Y'] = HTTP_FLG_TOK,
595 ['Z'] = HTTP_FLG_TOK,
596 ['['] = HTTP_FLG_SEP,
597 [ 92] = HTTP_FLG_SEP,
598 [']'] = HTTP_FLG_SEP,
599 ['^'] = HTTP_FLG_TOK,
600 ['_'] = HTTP_FLG_TOK,
601 ['`'] = HTTP_FLG_TOK,
602 ['a'] = HTTP_FLG_TOK,
603 ['b'] = HTTP_FLG_TOK,
604 ['c'] = HTTP_FLG_TOK,
605 ['d'] = HTTP_FLG_TOK,
606 ['e'] = HTTP_FLG_TOK,
607 ['f'] = HTTP_FLG_TOK,
608 ['g'] = HTTP_FLG_TOK,
609 ['h'] = HTTP_FLG_TOK,
610 ['i'] = HTTP_FLG_TOK,
611 ['j'] = HTTP_FLG_TOK,
612 ['k'] = HTTP_FLG_TOK,
613 ['l'] = HTTP_FLG_TOK,
614 ['m'] = HTTP_FLG_TOK,
615 ['n'] = HTTP_FLG_TOK,
616 ['o'] = HTTP_FLG_TOK,
617 ['p'] = HTTP_FLG_TOK,
618 ['q'] = HTTP_FLG_TOK,
619 ['r'] = HTTP_FLG_TOK,
620 ['s'] = HTTP_FLG_TOK,
621 ['t'] = HTTP_FLG_TOK,
622 ['u'] = HTTP_FLG_TOK,
623 ['v'] = HTTP_FLG_TOK,
624 ['w'] = HTTP_FLG_TOK,
625 ['x'] = HTTP_FLG_TOK,
626 ['y'] = HTTP_FLG_TOK,
627 ['z'] = HTTP_FLG_TOK,
628 ['{'] = HTTP_FLG_SEP,
629 ['|'] = HTTP_FLG_TOK,
630 ['}'] = HTTP_FLG_SEP,
631 ['~'] = HTTP_FLG_TOK,
632 [127] = HTTP_FLG_CTL,
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]633};
634
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]635/*
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]636 * Adds a header and its CRLF at the tail of the message's buffer, just before
637 * the last CRLF. Text length is measured first, so it cannot be NULL.
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]638 * The header is also automatically added to the index <hdr_idx>, and the end
639 * of headers is automatically adjusted. The number of bytes added is returned
640 * on success, otherwise <0 is returned indicating an error.
641 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]642int 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]643{
644 int bytes, len;
645
646 len = strlen(text);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]647 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]648 if (!bytes)
649 return -1;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]650 http_msg_move_end(msg, bytes);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]651 return hdr_idx_add(len, 1, hdr_idx, hdr_idx->tail);
652}
653
654/*
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]655 * Adds a header and its CRLF at the tail of the message's buffer, just before
656 * 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]657 * the buffer is only opened and the space reserved, but nothing is copied.
658 * The header is also automatically added to the index <hdr_idx>, and the end
659 * of headers is automatically adjusted. The number of bytes added is returned
660 * on success, otherwise <0 is returned indicating an error.
661 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]662int http_header_add_tail2(struct http_msg *msg,
663 struct hdr_idx *hdr_idx, const char *text, int len)
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]664{
665 int bytes;
666
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]667 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]668 if (!bytes)
669 return -1;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]670 http_msg_move_end(msg, bytes);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]671 return hdr_idx_add(len, 1, hdr_idx, hdr_idx->tail);
672}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]673
674/*
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]675 * Checks if <hdr> is exactly <name> for <len> chars, and ends with a colon.
676 * If so, returns the position of the first non-space character relative to
677 * <hdr>, or <end>-<hdr> if not found before. If no value is found, it tries
678 * to return a pointer to the place after the first space. Returns 0 if the
679 * header name does not match. Checks are case-insensitive.
680 */
681int http_header_match2(const char *hdr, const char *end,
682 const char *name, int len)
683{
684 const char *val;
685
686 if (hdr + len >= end)
687 return 0;
688 if (hdr[len] != ':')
689 return 0;
690 if (strncasecmp(hdr, name, len) != 0)
691 return 0;
692 val = hdr + len + 1;
693 while (val < end && HTTP_IS_SPHT(*val))
694 val++;
695 if ((val >= end) && (len + 2 <= end - hdr))
696 return len + 2; /* we may replace starting from second space */
697 return val - hdr;
698}
699
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]700/* Find the first or next occurrence of header <name> in message buffer <sol>
701 * using headers index <idx>, and return it in the <ctx> structure. This
702 * structure holds everything necessary to use the header and find next
703 * occurrence. If its <idx> member is 0, the header is searched from the
704 * beginning. Otherwise, the next occurrence is returned. The function returns
705 * 1 when it finds a value, and 0 when there is no more. It is very similar to
706 * http_find_header2() except that it is designed to work with full-line headers
707 * whose comma is not a delimiter but is part of the syntax. As a special case,
708 * if ctx->val is NULL when searching for a new values of a header, the current
709 * header is rescanned. This allows rescanning after a header deletion.
710 */
711int http_find_full_header2(const char *name, int len,
712 char *sol, struct hdr_idx *idx,
713 struct hdr_ctx *ctx)
714{
715 char *eol, *sov;
716 int cur_idx, old_idx;
717
718 cur_idx = ctx->idx;
719 if (cur_idx) {
720 /* We have previously returned a header, let's search another one */
721 sol = ctx->line;
722 eol = sol + idx->v[cur_idx].len;
723 goto next_hdr;
724 }
725
726 /* first request for this header */
727 sol += hdr_idx_first_pos(idx);
728 old_idx = 0;
729 cur_idx = hdr_idx_first_idx(idx);
730 while (cur_idx) {
731 eol = sol + idx->v[cur_idx].len;
732
733 if (len == 0) {
734 /* No argument was passed, we want any header.
735 * To achieve this, we simply build a fake request. */
736 while (sol + len < eol && sol[len] != ':')
737 len++;
738 name = sol;
739 }
740
741 if ((len < eol - sol) &&
742 (sol[len] == ':') &&
743 (strncasecmp(sol, name, len) == 0)) {
744 ctx->del = len;
745 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]746 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]747 sov++;
748
749 ctx->line = sol;
750 ctx->prev = old_idx;
751 ctx->idx = cur_idx;
752 ctx->val = sov - sol;
753 ctx->tws = 0;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]754 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]755 eol--;
756 ctx->tws++;
757 }
758 ctx->vlen = eol - sov;
759 return 1;
760 }
761 next_hdr:
762 sol = eol + idx->v[cur_idx].cr + 1;
763 old_idx = cur_idx;
764 cur_idx = idx->v[cur_idx].next;
765 }
766 return 0;
767}
768
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]769/* Find the first or next header field in message buffer <sol> using headers
770 * index <idx>, and return it in the <ctx> structure. This structure holds
771 * everything necessary to use the header and find next occurrence. If its
772 * <idx> member is 0, the first header is retrieved. Otherwise, the next
773 * occurrence is returned. The function returns 1 when it finds a value, and
774 * 0 when there is no more. It is equivalent to http_find_full_header2() with
775 * no header name.
776 */
777int http_find_next_header(char *sol, struct hdr_idx *idx, struct hdr_ctx *ctx)
778{
779 char *eol, *sov;
780 int cur_idx, old_idx;
781 int len;
782
783 cur_idx = ctx->idx;
784 if (cur_idx) {
785 /* We have previously returned a header, let's search another one */
786 sol = ctx->line;
787 eol = sol + idx->v[cur_idx].len;
788 goto next_hdr;
789 }
790
791 /* first request for this header */
792 sol += hdr_idx_first_pos(idx);
793 old_idx = 0;
794 cur_idx = hdr_idx_first_idx(idx);
795 while (cur_idx) {
796 eol = sol + idx->v[cur_idx].len;
797
798 len = 0;
799 while (1) {
800 if (len >= eol - sol)
801 goto next_hdr;
802 if (sol[len] == ':')
803 break;
804 len++;
805 }
806
807 ctx->del = len;
808 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]809 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]810 sov++;
811
812 ctx->line = sol;
813 ctx->prev = old_idx;
814 ctx->idx = cur_idx;
815 ctx->val = sov - sol;
816 ctx->tws = 0;
817
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]818 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]819 eol--;
820 ctx->tws++;
821 }
822 ctx->vlen = eol - sov;
823 return 1;
824
825 next_hdr:
826 sol = eol + idx->v[cur_idx].cr + 1;
827 old_idx = cur_idx;
828 cur_idx = idx->v[cur_idx].next;
829 }
830 return 0;
831}
832
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]833/* Find the end of the header value contained between <s> and <e>. See RFC2616,
834 * par 2.2 for more information. Note that it requires a valid header to return
835 * a valid result. This works for headers defined as comma-separated lists.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]836 */
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]837char *find_hdr_value_end(char *s, const char *e)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]838{
839 int quoted, qdpair;
840
841 quoted = qdpair = 0;
Willy Tarreaue6d9c212016-11-05 18:23:38 +0100[diff] [blame]842
843#if defined(__x86_64__) || \
844 defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) || \
845 defined(__ARM_ARCH_7A__)
846 /* speedup: skip everything not a comma nor a double quote */
847 for (; s <= e - sizeof(int); s += sizeof(int)) {
848 unsigned int c = *(int *)s; // comma
849 unsigned int q = c; // quote
850
851 c ^= 0x2c2c2c2c; // contains one zero on a comma
852 q ^= 0x22222222; // contains one zero on a quote
853
854 c = (c - 0x01010101) & ~c; // contains 0x80 below a comma
855 q = (q - 0x01010101) & ~q; // contains 0x80 below a quote
856
857 if ((c | q) & 0x80808080)
858 break; // found a comma or a quote
859 }
860#endif
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]861 for (; s < e; s++) {
862 if (qdpair) qdpair = 0;
Willy Tarreau0f7f51f2010-08-30 11:06:34 +0200[diff] [blame]863 else if (quoted) {
864 if (*s == '\\') qdpair = 1;
865 else if (*s == '"') quoted = 0;
866 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]867 else if (*s == '"') quoted = 1;
868 else if (*s == ',') return s;
869 }
870 return s;
871}
872
873/* Find the first or next occurrence of header <name> in message buffer <sol>
874 * using headers index <idx>, and return it in the <ctx> structure. This
875 * structure holds everything necessary to use the header and find next
876 * occurrence. If its <idx> member is 0, the header is searched from the
877 * beginning. Otherwise, the next occurrence is returned. The function returns
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]878 * 1 when it finds a value, and 0 when there is no more. It is designed to work
879 * with headers defined as comma-separated lists. As a special case, if ctx->val
880 * is NULL when searching for a new values of a header, the current header is
881 * rescanned. This allows rescanning after a header deletion.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]882 */
883int http_find_header2(const char *name, int len,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]884 char *sol, struct hdr_idx *idx,
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]885 struct hdr_ctx *ctx)
886{
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]887 char *eol, *sov;
888 int cur_idx, old_idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]889
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]890 cur_idx = ctx->idx;
891 if (cur_idx) {
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]892 /* We have previously returned a value, let's search
893 * another one on the same line.
894 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]895 sol = ctx->line;
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]896 ctx->del = ctx->val + ctx->vlen + ctx->tws;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]897 sov = sol + ctx->del;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]898 eol = sol + idx->v[cur_idx].len;
899
900 if (sov >= eol)
901 /* no more values in this header */
902 goto next_hdr;
903
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]904 /* values remaining for this header, skip the comma but save it
905 * for later use (eg: for header deletion).
906 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]907 sov++;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]908 while (sov < eol && HTTP_IS_LWS((*sov)))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]909 sov++;
910
911 goto return_hdr;
912 }
913
914 /* first request for this header */
915 sol += hdr_idx_first_pos(idx);
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]916 old_idx = 0;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]917 cur_idx = hdr_idx_first_idx(idx);
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]918 while (cur_idx) {
919 eol = sol + idx->v[cur_idx].len;
920
Willy Tarreau1ad7c6d2007-06-10 21:42:55 +0200[diff] [blame]921 if (len == 0) {
922 /* No argument was passed, we want any header.
923 * To achieve this, we simply build a fake request. */
924 while (sol + len < eol && sol[len] != ':')
925 len++;
926 name = sol;
927 }
928
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]929 if ((len < eol - sol) &&
930 (sol[len] == ':') &&
931 (strncasecmp(sol, name, len) == 0)) {
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]932 ctx->del = len;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]933 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]934 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]935 sov++;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]936
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]937 ctx->line = sol;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]938 ctx->prev = old_idx;
939 return_hdr:
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]940 ctx->idx = cur_idx;
941 ctx->val = sov - sol;
942
943 eol = find_hdr_value_end(sov, eol);
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]944 ctx->tws = 0;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]945 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]946 eol--;
947 ctx->tws++;
948 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]949 ctx->vlen = eol - sov;
950 return 1;
951 }
952 next_hdr:
953 sol = eol + idx->v[cur_idx].cr + 1;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]954 old_idx = cur_idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]955 cur_idx = idx->v[cur_idx].next;
956 }
957 return 0;
958}
959
960int http_find_header(const char *name,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]961 char *sol, struct hdr_idx *idx,
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]962 struct hdr_ctx *ctx)
963{
964 return http_find_header2(name, strlen(name), sol, idx, ctx);
965}
966
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]967/* Remove one value of a header. This only works on a <ctx> returned by one of
968 * the http_find_header functions. The value is removed, as well as surrounding
969 * commas if any. If the removed value was alone, the whole header is removed.
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]970 * The ctx is always updated accordingly, as well as the buffer and HTTP
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]971 * message <msg>. The new index is returned. If it is zero, it means there is
972 * no more header, so any processing may stop. The ctx is always left in a form
973 * that can be handled by http_find_header2() to find next occurrence.
974 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]975int 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]976{
977 int cur_idx = ctx->idx;
978 char *sol = ctx->line;
979 struct hdr_idx_elem *hdr;
980 int delta, skip_comma;
981
982 if (!cur_idx)
983 return 0;
984
985 hdr = &idx->v[cur_idx];
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]986 if (sol[ctx->del] == ':' && ctx->val + ctx->vlen + ctx->tws == hdr->len) {
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]987 /* This was the only value of the header, we must now remove it entirely. */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]988 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]989 http_msg_move_end(msg, delta);
990 idx->used--;
991 hdr->len = 0; /* unused entry */
992 idx->v[ctx->prev].next = idx->v[ctx->idx].next;
Willy Tarreau5c4784f2011-02-12 13:07:35 +0100[diff] [blame]993 if (idx->tail == ctx->idx)
994 idx->tail = ctx->prev;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]995 ctx->idx = ctx->prev; /* walk back to the end of previous header */
Willy Tarreau7c1c2172015-01-07 17:23:50 +0100[diff] [blame]996 ctx->line -= idx->v[ctx->idx].len + idx->v[ctx->idx].cr + 1;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]997 ctx->val = idx->v[ctx->idx].len; /* point to end of previous header */
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]998 ctx->tws = ctx->vlen = 0;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]999 return ctx->idx;
1000 }
1001
1002 /* This was not the only value of this header. We have to remove between
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]1003 * ctx->del+1 and ctx->val+ctx->vlen+ctx->tws+1 included. If it is the
1004 * last entry of the list, we remove the last separator.
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]1005 */
1006
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]1007 skip_comma = (ctx->val + ctx->vlen + ctx->tws == hdr->len) ? 0 : 1;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1008 delta = buffer_replace2(msg->chn->buf, sol + ctx->del + skip_comma,
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]1009 sol + ctx->val + ctx->vlen + ctx->tws + skip_comma,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]1010 NULL, 0);
1011 hdr->len += delta;
1012 http_msg_move_end(msg, delta);
1013 ctx->val = ctx->del;
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]1014 ctx->tws = ctx->vlen = 0;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]1015 return ctx->idx;
1016}
1017
Willy Tarreau2d3d94c2008-11-30 20:20:08 +0100[diff] [blame]1018/* This function handles a server error at the stream interface level. The
1019 * stream interface is assumed to be already in a closed state. An optional
1020 * message is copied into the input buffer, and an HTTP status code stored.
1021 * The error flags are set to the values in arguments. Any pending request
Willy Tarreau6f0aa472009-03-08 20:33:29 +0100[diff] [blame]1022 * in this buffer will be lost.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1023 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1024static void http_server_error(struct stream *s, struct stream_interface *si,
Willy Tarreau2d3d94c2008-11-30 20:20:08 +0100[diff] [blame]1025 int err, int finst, int status, const struct chunk *msg)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1026{
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]1027 FLT_STRM_CB(s, flt_http_reply(s, status, msg));
Willy Tarreau2bb4a962014-11-28 11:11:05 +0100[diff] [blame]1028 channel_auto_read(si_oc(si));
1029 channel_abort(si_oc(si));
1030 channel_auto_close(si_oc(si));
1031 channel_erase(si_oc(si));
1032 channel_auto_close(si_ic(si));
1033 channel_auto_read(si_ic(si));
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]1034 if (status > 0 && msg) {
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1035 s->txn->status = status;
Willy Tarreau2bb4a962014-11-28 11:11:05 +0100[diff] [blame]1036 bo_inject(si_ic(si), msg->str, msg->len);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1037 }
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1038 if (!(s->flags & SF_ERR_MASK))
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]1039 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1040 if (!(s->flags & SF_FINST_MASK))
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]1041 s->flags |= finst;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1042}
1043
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1044/* This function returns the appropriate error location for the given stream
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]1045 * and message.
1046 */
1047
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1048struct chunk *http_error_message(struct stream *s, int msgnum)
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]1049{
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200[diff] [blame]1050 if (s->be->errmsg[msgnum].str)
1051 return &s->be->errmsg[msgnum];
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]1052 else if (strm_fe(s)->errmsg[msgnum].str)
1053 return &strm_fe(s)->errmsg[msgnum];
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]1054 else
1055 return &http_err_chunks[msgnum];
1056}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1057
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]1058void
1059http_reply_and_close(struct stream *s, short status, struct chunk *msg)
1060{
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]1061 s->txn->flags &= ~TX_WAIT_NEXT_RQ;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]1062 FLT_STRM_CB(s, flt_http_reply(s, status, msg));
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]1063 stream_int_retnclose(&s->si[0], msg);
1064}
1065
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]1066/*
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]1067 * returns a known method among HTTP_METH_* or HTTP_METH_OTHER for all unknown
1068 * ones.
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]1069 */
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]1070enum http_meth_t find_http_meth(const char *str, const int len)
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]1071{
1072 unsigned char m;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1073 const struct http_method_desc *h;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]1074
1075 m = ((unsigned)*str - 'A');
1076
1077 if (m < 26) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1078 for (h = http_methods[m]; h->len > 0; h++) {
1079 if (unlikely(h->len != len))
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]1080 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1081 if (likely(memcmp(str, h->text, h->len) == 0))
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]1082 return h->meth;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]1083 };
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]1084 }
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]1085 return HTTP_METH_OTHER;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]1086}
1087
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]1088/* Parse the URI from the given transaction (which is assumed to be in request
1089 * phase) and look for the "/" beginning the PATH. If not found, return NULL.
1090 * It is returned otherwise.
1091 */
Thierry FOURNIER3c331782015-09-17 19:33:35 +0200[diff] [blame]1092char *http_get_path(struct http_txn *txn)
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]1093{
1094 char *ptr, *end;
1095
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1096 ptr = txn->req.chn->buf->p + txn->req.sl.rq.u;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]1097 end = ptr + txn->req.sl.rq.u_l;
1098
1099 if (ptr >= end)
1100 return NULL;
1101
1102 /* RFC2616, par. 5.1.2 :
1103 * Request-URI = "*" | absuri | abspath | authority
1104 */
1105
1106 if (*ptr == '*')
1107 return NULL;
1108
1109 if (isalpha((unsigned char)*ptr)) {
1110 /* this is a scheme as described by RFC3986, par. 3.1 */
1111 ptr++;
1112 while (ptr < end &&
1113 (isalnum((unsigned char)*ptr) || *ptr == '+' || *ptr == '-' || *ptr == '.'))
1114 ptr++;
1115 /* skip '://' */
1116 if (ptr == end || *ptr++ != ':')
1117 return NULL;
1118 if (ptr == end || *ptr++ != '/')
1119 return NULL;
1120 if (ptr == end || *ptr++ != '/')
1121 return NULL;
1122 }
1123 /* skip [user[:passwd]@]host[:[port]] */
1124
1125 while (ptr < end && *ptr != '/')
1126 ptr++;
1127
1128 if (ptr == end)
1129 return NULL;
1130
1131 /* OK, we got the '/' ! */
1132 return ptr;
1133}
1134
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]1135/* Parse the URI from the given string and look for the "/" beginning the PATH.
1136 * If not found, return NULL. It is returned otherwise.
1137 */
1138static char *
1139http_get_path_from_string(char *str)
1140{
1141 char *ptr = str;
1142
1143 /* RFC2616, par. 5.1.2 :
1144 * Request-URI = "*" | absuri | abspath | authority
1145 */
1146
1147 if (*ptr == '*')
1148 return NULL;
1149
1150 if (isalpha((unsigned char)*ptr)) {
1151 /* this is a scheme as described by RFC3986, par. 3.1 */
1152 ptr++;
1153 while (isalnum((unsigned char)*ptr) || *ptr == '+' || *ptr == '-' || *ptr == '.')
1154 ptr++;
1155 /* skip '://' */
1156 if (*ptr == '\0' || *ptr++ != ':')
1157 return NULL;
1158 if (*ptr == '\0' || *ptr++ != '/')
1159 return NULL;
1160 if (*ptr == '\0' || *ptr++ != '/')
1161 return NULL;
1162 }
1163 /* skip [user[:passwd]@]host[:[port]] */
1164
1165 while (*ptr != '\0' && *ptr != ' ' && *ptr != '/')
1166 ptr++;
1167
1168 if (*ptr == '\0' || *ptr == ' ')
1169 return NULL;
1170
1171 /* OK, we got the '/' ! */
1172 return ptr;
1173}
1174
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]1175/* Returns a 302 for a redirectable request that reaches a server working in
1176 * in redirect mode. This may only be called just after the stream interface
1177 * has moved to SI_ST_ASS. Unprocessable requests are left unchanged and will
1178 * follow normal proxy processing. NOTE: this function is designed to support
1179 * being called once data are scheduled for forwarding.
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1180 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1181void http_perform_server_redirect(struct stream *s, struct stream_interface *si)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1182{
1183 struct http_txn *txn;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1184 struct server *srv;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1185 char *path;
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1186 int len, rewind;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1187
1188 /* 1: create the response header */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1189 trash.len = strlen(HTTP_302);
1190 memcpy(trash.str, HTTP_302, trash.len);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1191
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]1192 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1193
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1194 /* 2: add the server's prefix */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1195 if (trash.len + srv->rdr_len > trash.size)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1196 return;
1197
Willy Tarreaudcb75c42010-01-10 00:24:22 +0100[diff] [blame]1198 /* special prefix "/" means don't change URL */
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1199 if (srv->rdr_len != 1 || *srv->rdr_pfx != '/') {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1200 memcpy(trash.str + trash.len, srv->rdr_pfx, srv->rdr_len);
1201 trash.len += srv->rdr_len;
Willy Tarreaudcb75c42010-01-10 00:24:22 +0100[diff] [blame]1202 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1203
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1204 /* 3: add the request URI. Since it was already forwarded, we need
1205 * to temporarily rewind the buffer.
1206 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1207 txn = s->txn;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1208 b_rew(s->req.buf, rewind = http_hdr_rewind(&txn->req));
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1209
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1210 path = http_get_path(txn);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1211 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]1212
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1213 b_adv(s->req.buf, rewind);
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1214
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1215 if (!path)
1216 return;
1217
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1218 if (trash.len + len > trash.size - 4) /* 4 for CRLF-CRLF */
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1219 return;
1220
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1221 memcpy(trash.str + trash.len, path, len);
1222 trash.len += len;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1223
1224 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1225 memcpy(trash.str + trash.len, "\r\nProxy-Connection: close\r\n\r\n", 29);
1226 trash.len += 29;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1227 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1228 memcpy(trash.str + trash.len, "\r\nConnection: close\r\n\r\n", 23);
1229 trash.len += 23;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1230 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1231
1232 /* prepare to return without error. */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200[diff] [blame]1233 si_shutr(si);
1234 si_shutw(si);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1235 si->err_type = SI_ET_NONE;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1236 si->state = SI_ST_CLO;
1237
1238 /* send the message */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1239 http_server_error(s, si, SF_ERR_LOCAL, SF_FINST_C, 302, &trash);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1240
1241 /* FIXME: we should increase a counter of redirects per server and per backend. */
Willy Tarreau4521ba62013-01-24 01:25:25 +0100[diff] [blame]1242 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -0500[diff] [blame]1243 srv_set_sess_last(srv);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1244}
1245
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100[diff] [blame]1246/* Return the error message corresponding to si->err_type. It is assumed
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1247 * that the server side is closed. Note that err_type is actually a
1248 * bitmask, where almost only aborts may be cumulated with other
1249 * values. We consider that aborted operations are more important
1250 * than timeouts or errors due to the fact that nobody else in the
1251 * logs might explain incomplete retries. All others should avoid
1252 * being cumulated. It should normally not be possible to have multiple
1253 * aborts at once, but just in case, the first one in sequence is reported.
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]1254 * Note that connection errors appearing on the second request of a keep-alive
1255 * connection are not reported since this allows the client to retry.
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1256 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1257void http_return_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1258{
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100[diff] [blame]1259 int err_type = si->err_type;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1260
1261 if (err_type & SI_ET_QUEUE_ABRT)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1262 http_server_error(s, si, SF_ERR_CLICL, SF_FINST_Q,
Willy Tarreau783f2582012-09-04 12:19:04 +0200[diff] [blame]1263 503, http_error_message(s, HTTP_ERR_503));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1264 else if (err_type & SI_ET_CONN_ABRT)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1265 http_server_error(s, si, SF_ERR_CLICL, SF_FINST_C,
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1266 503, (s->txn->flags & TX_NOT_FIRST) ? NULL :
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]1267 http_error_message(s, HTTP_ERR_503));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1268 else if (err_type & SI_ET_QUEUE_TO)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1269 http_server_error(s, si, SF_ERR_SRVTO, SF_FINST_Q,
Willy Tarreau783f2582012-09-04 12:19:04 +0200[diff] [blame]1270 503, http_error_message(s, HTTP_ERR_503));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1271 else if (err_type & SI_ET_QUEUE_ERR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1272 http_server_error(s, si, SF_ERR_SRVCL, SF_FINST_Q,
Willy Tarreau783f2582012-09-04 12:19:04 +0200[diff] [blame]1273 503, http_error_message(s, HTTP_ERR_503));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1274 else if (err_type & SI_ET_CONN_TO)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1275 http_server_error(s, si, SF_ERR_SRVTO, SF_FINST_C,
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1276 503, (s->txn->flags & TX_NOT_FIRST) ? NULL :
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]1277 http_error_message(s, HTTP_ERR_503));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1278 else if (err_type & SI_ET_CONN_ERR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1279 http_server_error(s, si, SF_ERR_SRVCL, SF_FINST_C,
1280 503, (s->flags & SF_SRV_REUSED) ? NULL :
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]1281 http_error_message(s, HTTP_ERR_503));
Willy Tarreau2d400bb2012-05-14 12:11:47 +0200[diff] [blame]1282 else if (err_type & SI_ET_CONN_RES)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1283 http_server_error(s, si, SF_ERR_RESOURCE, SF_FINST_C,
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1284 503, (s->txn->flags & TX_NOT_FIRST) ? NULL :
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]1285 http_error_message(s, HTTP_ERR_503));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1286 else /* SI_ET_CONN_OTHER and others */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1287 http_server_error(s, si, SF_ERR_INTERNAL, SF_FINST_C,
Willy Tarreau783f2582012-09-04 12:19:04 +0200[diff] [blame]1288 500, http_error_message(s, HTTP_ERR_500));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1289}
1290
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]1291extern const char sess_term_cond[8];
1292extern const char sess_fin_state[8];
1293extern const char *monthname[12];
Willy Tarreau63986c72015-04-03 22:55:33 +0200[diff] [blame]1294struct pool_head *pool2_http_txn;
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]1295struct pool_head *pool2_requri;
Willy Tarreau193b8c62012-11-22 00:17:38 +0100[diff] [blame]1296struct pool_head *pool2_capture = NULL;
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]1297struct pool_head *pool2_uniqueid;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1298
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1299/*
1300 * Capture headers from message starting at <som> according to header list
Willy Tarreau54da8db2014-06-13 16:11:48 +0200[diff] [blame]1301 * <cap_hdr>, and fill the <cap> pointers appropriately.
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1302 */
1303void capture_headers(char *som, struct hdr_idx *idx,
1304 char **cap, struct cap_hdr *cap_hdr)
1305{
1306 char *eol, *sol, *col, *sov;
1307 int cur_idx;
1308 struct cap_hdr *h;
1309 int len;
1310
1311 sol = som + hdr_idx_first_pos(idx);
1312 cur_idx = hdr_idx_first_idx(idx);
1313
1314 while (cur_idx) {
1315 eol = sol + idx->v[cur_idx].len;
1316
1317 col = sol;
1318 while (col < eol && *col != ':')
1319 col++;
1320
1321 sov = col + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]1322 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1323 sov++;
1324
1325 for (h = cap_hdr; h; h = h->next) {
Willy Tarreau54da8db2014-06-13 16:11:48 +0200[diff] [blame]1326 if (h->namelen && (h->namelen == col - sol) &&
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1327 (strncasecmp(sol, h->name, h->namelen) == 0)) {
1328 if (cap[h->index] == NULL)
1329 cap[h->index] =
Willy Tarreaucf7f3202007-05-13 22:46:04 +0200[diff] [blame]1330 pool_alloc2(h->pool);
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1331
1332 if (cap[h->index] == NULL) {
1333 Alert("HTTP capture : out of memory.\n");
1334 continue;
1335 }
1336
1337 len = eol - sov;
1338 if (len > h->len)
1339 len = h->len;
1340
1341 memcpy(cap[h->index], sov, len);
1342 cap[h->index][len]=0;
1343 }
1344 }
1345 sol = eol + idx->v[cur_idx].cr + 1;
1346 cur_idx = idx->v[cur_idx].next;
1347 }
1348}
1349
1350
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]1351/* either we find an LF at <ptr> or we jump to <bad>.
1352 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1353#define EXPECT_LF_HERE(ptr, bad, st) do { if (unlikely(*(ptr) != '\n')) { state = st; goto bad;}; } while (0)
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]1354
1355/* plays with variables <ptr>, <end> and <state>. Jumps to <good> if OK,
1356 * otherwise to <http_msg_ood> with <state> set to <st>.
1357 */
1358#define EAT_AND_JUMP_OR_RETURN(good, st) do { \
1359 ptr++; \
1360 if (likely(ptr < end)) \
1361 goto good; \
1362 else { \
1363 state = (st); \
1364 goto http_msg_ood; \
1365 } \
1366 } while (0)
1367
1368
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1369/*
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]1370 * This function parses a status line between <ptr> and <end>, starting with
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1371 * parser state <state>. Only states HTTP_MSG_RPVER, HTTP_MSG_RPVER_SP,
1372 * HTTP_MSG_RPCODE, HTTP_MSG_RPCODE_SP and HTTP_MSG_RPREASON are handled. Others
1373 * will give undefined results.
1374 * Note that it is upon the caller's responsibility to ensure that ptr < end,
1375 * and that msg->sol points to the beginning of the response.
1376 * If a complete line is found (which implies that at least one CR or LF is
1377 * found before <end>, the updated <ptr> is returned, otherwise NULL is
1378 * returned indicating an incomplete line (which does not mean that parts have
1379 * not been updated). In the incomplete case, if <ret_ptr> or <ret_state> are
1380 * non-NULL, they are fed with the new <ptr> and <state> values to be passed
1381 * upon next call.
1382 *
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]1383 * This function was intentionally designed to be called from
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1384 * http_msg_analyzer() with the lowest overhead. It should integrate perfectly
1385 * within its state machine and use the same macros, hence the need for same
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]1386 * labels and variable names. Note that msg->sol is left unchanged.
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1387 */
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1388const char *http_parse_stsline(struct http_msg *msg,
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1389 enum ht_state state, const char *ptr, const char *end,
1390 unsigned int *ret_ptr, enum ht_state *ret_state)
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1391{
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1392 const char *msg_start = msg->chn->buf->p;
Willy Tarreau62f791e2012-03-09 11:32:30 +0100[diff] [blame]1393
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1394 switch (state) {
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1395 case HTTP_MSG_RPVER:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1396 http_msg_rpver:
Willy Tarreau4b89ad42007-03-04 18:13:58 +0100[diff] [blame]1397 if (likely(HTTP_IS_VER_TOKEN(*ptr)))
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1398 EAT_AND_JUMP_OR_RETURN(http_msg_rpver, HTTP_MSG_RPVER);
1399
1400 if (likely(HTTP_IS_SPHT(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1401 msg->sl.st.v_l = ptr - msg_start;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1402 EAT_AND_JUMP_OR_RETURN(http_msg_rpver_sp, HTTP_MSG_RPVER_SP);
1403 }
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1404 msg->err_state = HTTP_MSG_RPVER;
Willy Tarreau7552c032009-03-01 11:10:40 +0100[diff] [blame]1405 state = HTTP_MSG_ERROR;
1406 break;
1407
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1408 case HTTP_MSG_RPVER_SP:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1409 http_msg_rpver_sp:
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1410 if (likely(!HTTP_IS_LWS(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1411 msg->sl.st.c = ptr - msg_start;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1412 goto http_msg_rpcode;
1413 }
1414 if (likely(HTTP_IS_SPHT(*ptr)))
1415 EAT_AND_JUMP_OR_RETURN(http_msg_rpver_sp, HTTP_MSG_RPVER_SP);
1416 /* so it's a CR/LF, this is invalid */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1417 msg->err_state = HTTP_MSG_RPVER_SP;
Willy Tarreau7552c032009-03-01 11:10:40 +0100[diff] [blame]1418 state = HTTP_MSG_ERROR;
1419 break;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1420
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1421 case HTTP_MSG_RPCODE:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1422 http_msg_rpcode:
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1423 if (likely(!HTTP_IS_LWS(*ptr)))
1424 EAT_AND_JUMP_OR_RETURN(http_msg_rpcode, HTTP_MSG_RPCODE);
1425
1426 if (likely(HTTP_IS_SPHT(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1427 msg->sl.st.c_l = ptr - msg_start - msg->sl.st.c;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1428 EAT_AND_JUMP_OR_RETURN(http_msg_rpcode_sp, HTTP_MSG_RPCODE_SP);
1429 }
1430
1431 /* so it's a CR/LF, so there is no reason phrase */
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1432 msg->sl.st.c_l = ptr - msg_start - msg->sl.st.c;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1433 http_msg_rsp_reason:
1434 /* FIXME: should we support HTTP responses without any reason phrase ? */
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1435 msg->sl.st.r = ptr - msg_start;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1436 msg->sl.st.r_l = 0;
1437 goto http_msg_rpline_eol;
1438
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1439 case HTTP_MSG_RPCODE_SP:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1440 http_msg_rpcode_sp:
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1441 if (likely(!HTTP_IS_LWS(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1442 msg->sl.st.r = ptr - msg_start;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1443 goto http_msg_rpreason;
1444 }
1445 if (likely(HTTP_IS_SPHT(*ptr)))
1446 EAT_AND_JUMP_OR_RETURN(http_msg_rpcode_sp, HTTP_MSG_RPCODE_SP);
1447 /* so it's a CR/LF, so there is no reason phrase */
1448 goto http_msg_rsp_reason;
1449
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1450 case HTTP_MSG_RPREASON:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1451 http_msg_rpreason:
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1452 if (likely(!HTTP_IS_CRLF(*ptr)))
1453 EAT_AND_JUMP_OR_RETURN(http_msg_rpreason, HTTP_MSG_RPREASON);
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1454 msg->sl.st.r_l = ptr - msg_start - msg->sl.st.r;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1455 http_msg_rpline_eol:
1456 /* We have seen the end of line. Note that we do not
1457 * necessarily have the \n yet, but at least we know that we
1458 * have EITHER \r OR \n, otherwise the response would not be
1459 * complete. We can then record the response length and return
1460 * to the caller which will be able to register it.
1461 */
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]1462 msg->sl.st.l = ptr - msg_start - msg->sol;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1463 return ptr;
1464
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1465 default:
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1466#ifdef DEBUG_FULL
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1467 fprintf(stderr, "FIXME !!!! impossible state at %s:%d = %d\n", __FILE__, __LINE__, state);
1468 exit(1);
1469#endif
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1470 ;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1471 }
1472
1473 http_msg_ood:
Willy Tarreau7552c032009-03-01 11:10:40 +0100[diff] [blame]1474 /* out of valid data */
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1475 if (ret_state)
1476 *ret_state = state;
1477 if (ret_ptr)
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]1478 *ret_ptr = ptr - msg_start;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1479 return NULL;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1480}
1481
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1482/*
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1483 * This function parses a request line between <ptr> and <end>, starting with
1484 * parser state <state>. Only states HTTP_MSG_RQMETH, HTTP_MSG_RQMETH_SP,
1485 * HTTP_MSG_RQURI, HTTP_MSG_RQURI_SP and HTTP_MSG_RQVER are handled. Others
1486 * will give undefined results.
1487 * Note that it is upon the caller's responsibility to ensure that ptr < end,
1488 * and that msg->sol points to the beginning of the request.
1489 * If a complete line is found (which implies that at least one CR or LF is
1490 * found before <end>, the updated <ptr> is returned, otherwise NULL is
1491 * returned indicating an incomplete line (which does not mean that parts have
1492 * not been updated). In the incomplete case, if <ret_ptr> or <ret_state> are
1493 * non-NULL, they are fed with the new <ptr> and <state> values to be passed
1494 * upon next call.
1495 *
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]1496 * This function was intentionally designed to be called from
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1497 * http_msg_analyzer() with the lowest overhead. It should integrate perfectly
1498 * within its state machine and use the same macros, hence the need for same
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]1499 * labels and variable names. Note that msg->sol is left unchanged.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1500 */
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1501const char *http_parse_reqline(struct http_msg *msg,
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1502 enum ht_state state, const char *ptr, const char *end,
1503 unsigned int *ret_ptr, enum ht_state *ret_state)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1504{
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1505 const char *msg_start = msg->chn->buf->p;
Willy Tarreau62f791e2012-03-09 11:32:30 +0100[diff] [blame]1506
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1507 switch (state) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1508 case HTTP_MSG_RQMETH:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1509 http_msg_rqmeth:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1510 if (likely(HTTP_IS_TOKEN(*ptr)))
1511 EAT_AND_JUMP_OR_RETURN(http_msg_rqmeth, HTTP_MSG_RQMETH);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1512
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1513 if (likely(HTTP_IS_SPHT(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1514 msg->sl.rq.m_l = ptr - msg_start;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1515 EAT_AND_JUMP_OR_RETURN(http_msg_rqmeth_sp, HTTP_MSG_RQMETH_SP);
1516 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1517
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1518 if (likely(HTTP_IS_CRLF(*ptr))) {
1519 /* HTTP 0.9 request */
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1520 msg->sl.rq.m_l = ptr - msg_start;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1521 http_msg_req09_uri:
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1522 msg->sl.rq.u = ptr - msg_start;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1523 http_msg_req09_uri_e:
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1524 msg->sl.rq.u_l = ptr - msg_start - msg->sl.rq.u;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1525 http_msg_req09_ver:
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1526 msg->sl.rq.v = ptr - msg_start;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1527 msg->sl.rq.v_l = 0;
1528 goto http_msg_rqline_eol;
1529 }
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1530 msg->err_state = HTTP_MSG_RQMETH;
Willy Tarreau7552c032009-03-01 11:10:40 +0100[diff] [blame]1531 state = HTTP_MSG_ERROR;
1532 break;
1533
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1534 case HTTP_MSG_RQMETH_SP:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1535 http_msg_rqmeth_sp:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1536 if (likely(!HTTP_IS_LWS(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1537 msg->sl.rq.u = ptr - msg_start;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1538 goto http_msg_rquri;
1539 }
1540 if (likely(HTTP_IS_SPHT(*ptr)))
1541 EAT_AND_JUMP_OR_RETURN(http_msg_rqmeth_sp, HTTP_MSG_RQMETH_SP);
1542 /* so it's a CR/LF, meaning an HTTP 0.9 request */
1543 goto http_msg_req09_uri;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1544
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1545 case HTTP_MSG_RQURI:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1546 http_msg_rquri:
Willy Tarreau5f10ea32016-11-05 17:52:06 +0100[diff] [blame]1547#if defined(__x86_64__) || \
1548 defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) || \
1549 defined(__ARM_ARCH_7A__)
1550 /* speedup: skip bytes not between 0x21 and 0x7e inclusive */
1551 while (ptr <= end - sizeof(int)) {
1552 int x = *(int *)ptr - 0x21212121;
1553 if (x & 0x80808080)
1554 break;
1555
1556 x -= 0x5e5e5e5e;
1557 if (!(x & 0x80808080))
1558 break;
1559
1560 ptr += sizeof(int);
1561 }
1562#endif
1563 http_msg_rquri2:
Willy Tarreau2e9506d2012-01-07 23:22:31 +0100[diff] [blame]1564 if (likely((unsigned char)(*ptr - 33) <= 93)) /* 33 to 126 included */
Willy Tarreau5f10ea32016-11-05 17:52:06 +0100[diff] [blame]1565 EAT_AND_JUMP_OR_RETURN(http_msg_rquri2, HTTP_MSG_RQURI);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1566
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1567 if (likely(HTTP_IS_SPHT(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1568 msg->sl.rq.u_l = ptr - msg_start - msg->sl.rq.u;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1569 EAT_AND_JUMP_OR_RETURN(http_msg_rquri_sp, HTTP_MSG_RQURI_SP);
1570 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1571
Willy Tarreau2e9506d2012-01-07 23:22:31 +0100[diff] [blame]1572 if (likely((unsigned char)*ptr >= 128)) {
Willy Tarreau422246e2012-01-07 23:54:13 +0100[diff] [blame]1573 /* non-ASCII chars are forbidden unless option
1574 * accept-invalid-http-request is enabled in the frontend.
1575 * In any case, we capture the faulty char.
Willy Tarreau2e9506d2012-01-07 23:22:31 +0100[diff] [blame]1576 */
Willy Tarreau422246e2012-01-07 23:54:13 +0100[diff] [blame]1577 if (msg->err_pos < -1)
1578 goto invalid_char;
1579 if (msg->err_pos == -1)
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1580 msg->err_pos = ptr - msg_start;
Willy Tarreau2e9506d2012-01-07 23:22:31 +0100[diff] [blame]1581 EAT_AND_JUMP_OR_RETURN(http_msg_rquri, HTTP_MSG_RQURI);
1582 }
1583
1584 if (likely(HTTP_IS_CRLF(*ptr))) {
1585 /* so it's a CR/LF, meaning an HTTP 0.9 request */
1586 goto http_msg_req09_uri_e;
1587 }
1588
1589 /* OK forbidden chars, 0..31 or 127 */
Willy Tarreau422246e2012-01-07 23:54:13 +0100[diff] [blame]1590 invalid_char:
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1591 msg->err_pos = ptr - msg_start;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1592 msg->err_state = HTTP_MSG_RQURI;
Willy Tarreau2e9506d2012-01-07 23:22:31 +0100[diff] [blame]1593 state = HTTP_MSG_ERROR;
1594 break;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1595
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1596 case HTTP_MSG_RQURI_SP:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1597 http_msg_rquri_sp:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1598 if (likely(!HTTP_IS_LWS(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1599 msg->sl.rq.v = ptr - msg_start;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1600 goto http_msg_rqver;
1601 }
1602 if (likely(HTTP_IS_SPHT(*ptr)))
1603 EAT_AND_JUMP_OR_RETURN(http_msg_rquri_sp, HTTP_MSG_RQURI_SP);
1604 /* so it's a CR/LF, meaning an HTTP 0.9 request */
1605 goto http_msg_req09_ver;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1606
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1607 case HTTP_MSG_RQVER:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1608 http_msg_rqver:
Willy Tarreau4b89ad42007-03-04 18:13:58 +0100[diff] [blame]1609 if (likely(HTTP_IS_VER_TOKEN(*ptr)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1610 EAT_AND_JUMP_OR_RETURN(http_msg_rqver, HTTP_MSG_RQVER);
Willy Tarreau4b89ad42007-03-04 18:13:58 +0100[diff] [blame]1611
1612 if (likely(HTTP_IS_CRLF(*ptr))) {
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]1613 msg->sl.rq.v_l = ptr - msg_start - msg->sl.rq.v;
Willy Tarreau4b89ad42007-03-04 18:13:58 +0100[diff] [blame]1614 http_msg_rqline_eol:
1615 /* We have seen the end of line. Note that we do not
1616 * necessarily have the \n yet, but at least we know that we
1617 * have EITHER \r OR \n, otherwise the request would not be
1618 * complete. We can then record the request length and return
1619 * to the caller which will be able to register it.
1620 */
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]1621 msg->sl.rq.l = ptr - msg_start - msg->sol;
Willy Tarreau4b89ad42007-03-04 18:13:58 +0100[diff] [blame]1622 return ptr;
1623 }
1624
1625 /* neither an HTTP_VER token nor a CRLF */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1626 msg->err_state = HTTP_MSG_RQVER;
Willy Tarreau7552c032009-03-01 11:10:40 +0100[diff] [blame]1627 state = HTTP_MSG_ERROR;
1628 break;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1629
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1630 default:
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1631#ifdef DEBUG_FULL
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1632 fprintf(stderr, "FIXME !!!! impossible state at %s:%d = %d\n", __FILE__, __LINE__, state);
1633 exit(1);
1634#endif
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1635 ;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1636 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1637
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1638 http_msg_ood:
Willy Tarreau7552c032009-03-01 11:10:40 +0100[diff] [blame]1639 /* out of valid data */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1640 if (ret_state)
1641 *ret_state = state;
1642 if (ret_ptr)
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]1643 *ret_ptr = ptr - msg_start;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1644 return NULL;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1645}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1646
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1647/*
1648 * Returns the data from Authorization header. Function may be called more
1649 * than once so data is stored in txn->auth_data. When no header is found
1650 * 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]1651 * searching again for something we are unable to find anyway. However, if
1652 * the result if valid, the cache is not reused because we would risk to
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1653 * have the credentials overwritten by another stream in parallel.
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1654 */
1655
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]1656/* This bufffer is initialized in the file 'src/haproxy.c'. This length is
1657 * set according to global.tune.bufsize.
1658 */
Willy Tarreau7e2c6472012-10-29 20:44:36 +0100[diff] [blame]1659char *get_http_auth_buff;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1660
1661int
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1662get_http_auth(struct stream *s)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1663{
1664
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1665 struct http_txn *txn = s->txn;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1666 struct chunk auth_method;
1667 struct hdr_ctx ctx;
1668 char *h, *p;
1669 int len;
1670
1671#ifdef DEBUG_AUTH
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1672 printf("Auth for stream %p: %d\n", s, txn->auth.method);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1673#endif
1674
1675 if (txn->auth.method == HTTP_AUTH_WRONG)
1676 return 0;
1677
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1678 txn->auth.method = HTTP_AUTH_WRONG;
1679
1680 ctx.idx = 0;
Willy Tarreau844a7e72010-01-31 21:46:18 +0100[diff] [blame]1681
1682 if (txn->flags & TX_USE_PX_CONN) {
1683 h = "Proxy-Authorization";
1684 len = strlen(h);
1685 } else {
1686 h = "Authorization";
1687 len = strlen(h);
1688 }
1689
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1690 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]1691 return 0;
1692
1693 h = ctx.line + ctx.val;
1694
1695 p = memchr(h, ' ', ctx.vlen);
Willy Tarreau5c557d12016-03-13 08:17:02 +0100[diff] [blame]1696 len = p - h;
1697 if (!p || len <= 0)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1698 return 0;
1699
David Carlier7365f7d2016-04-04 11:54:42 +0100[diff] [blame]1700 if (chunk_initlen(&auth_method, h, 0, len) != 1)
1701 return 0;
1702
Willy Tarreau5c557d12016-03-13 08:17:02 +0100[diff] [blame]1703 chunk_initlen(&txn->auth.method_data, p + 1, 0, ctx.vlen - len - 1);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1704
1705 if (!strncasecmp("Basic", auth_method.str, auth_method.len)) {
1706
1707 len = base64dec(txn->auth.method_data.str, txn->auth.method_data.len,
Willy Tarreau7e2c6472012-10-29 20:44:36 +0100[diff] [blame]1708 get_http_auth_buff, global.tune.bufsize - 1);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1709
1710 if (len < 0)
1711 return 0;
1712
1713
1714 get_http_auth_buff[len] = '\0';
1715
1716 p = strchr(get_http_auth_buff, ':');
1717
1718 if (!p)
1719 return 0;
1720
1721 txn->auth.user = get_http_auth_buff;
1722 *p = '\0';
1723 txn->auth.pass = p+1;
1724
1725 txn->auth.method = HTTP_AUTH_BASIC;
1726 return 1;
1727 }
1728
1729 return 0;
1730}
1731
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1732
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1733/*
1734 * This function parses an HTTP message, either a request or a response,
Willy Tarreau8b1323e2012-03-09 14:46:19 +0100[diff] [blame]1735 * depending on the initial msg->msg_state. The caller is responsible for
1736 * ensuring that the message does not wrap. The function can be preempted
1737 * everywhere when data are missing and recalled at the exact same location
1738 * with no information loss. The message may even be realigned between two
1739 * calls. The header index is re-initialized when switching from
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]1740 * 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]1741 * fields. Note that msg->sol will be initialized after completing the first
1742 * state, so that none of the msg pointers has to be initialized prior to the
1743 * first call.
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1744 */
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]1745void http_msg_analyzer(struct http_msg *msg, struct hdr_idx *idx)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1746{
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]1747 enum ht_state state; /* updated only when leaving the FSM */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1748 register char *ptr, *end; /* request pointers, to avoid dereferences */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1749 struct buffer *buf;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1750
Willy Tarreaub326fcc2007-03-03 13:54:32 +0100[diff] [blame]1751 state = msg->msg_state;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1752 buf = msg->chn->buf;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1753 ptr = buf->p + msg->next;
1754 end = buf->p + buf->i;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1755
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1756 if (unlikely(ptr >= end))
1757 goto http_msg_ood;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1758
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1759 switch (state) {
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1760 /*
1761 * First, states that are specific to the response only.
1762 * We check them first so that request and headers are
1763 * closer to each other (accessed more often).
1764 */
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1765 case HTTP_MSG_RPBEFORE:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1766 http_msg_rpbefore:
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1767 if (likely(HTTP_IS_TOKEN(*ptr))) {
Willy Tarreau15de77e2010-01-02 21:59:16 +0100[diff] [blame]1768 /* we have a start of message, but we have to check
1769 * first if we need to remove some CRLF. We can only
Willy Tarreau2e046c62012-03-01 16:08:30 +0100[diff] [blame]1770 * do this when o=0.
Willy Tarreau15de77e2010-01-02 21:59:16 +0100[diff] [blame]1771 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1772 if (unlikely(ptr != buf->p)) {
1773 if (buf->o)
Willy Tarreau15de77e2010-01-02 21:59:16 +0100[diff] [blame]1774 goto http_msg_ood;
Willy Tarreau1d3bcce2009-12-27 15:50:06 +0100[diff] [blame]1775 /* Remove empty leading lines, as recommended by RFC2616. */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1776 bi_fast_delete(buf, ptr - buf->p);
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1777 }
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]1778 msg->sol = 0;
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]1779 msg->sl.st.l = 0; /* used in debug mode */
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1780 hdr_idx_init(idx);
1781 state = HTTP_MSG_RPVER;
1782 goto http_msg_rpver;
1783 }
1784
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1785 if (unlikely(!HTTP_IS_CRLF(*ptr))) {
1786 state = HTTP_MSG_RPBEFORE;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1787 goto http_msg_invalid;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1788 }
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1789
1790 if (unlikely(*ptr == '\n'))
1791 EAT_AND_JUMP_OR_RETURN(http_msg_rpbefore, HTTP_MSG_RPBEFORE);
1792 EAT_AND_JUMP_OR_RETURN(http_msg_rpbefore_cr, HTTP_MSG_RPBEFORE_CR);
1793 /* stop here */
1794
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1795 case HTTP_MSG_RPBEFORE_CR:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1796 http_msg_rpbefore_cr:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1797 EXPECT_LF_HERE(ptr, http_msg_invalid, HTTP_MSG_RPBEFORE_CR);
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1798 EAT_AND_JUMP_OR_RETURN(http_msg_rpbefore, HTTP_MSG_RPBEFORE);
1799 /* stop here */
1800
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1801 case HTTP_MSG_RPVER:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1802 http_msg_rpver:
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1803 case HTTP_MSG_RPVER_SP:
1804 case HTTP_MSG_RPCODE:
1805 case HTTP_MSG_RPCODE_SP:
1806 case HTTP_MSG_RPREASON:
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1807 ptr = (char *)http_parse_stsline(msg,
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]1808 state, ptr, end,
1809 &msg->next, &msg->msg_state);
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1810 if (unlikely(!ptr))
1811 return;
1812
1813 /* we have a full response and we know that we have either a CR
1814 * or an LF at <ptr>.
1815 */
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1816 hdr_idx_set_start(idx, msg->sl.st.l, *ptr == '\r');
1817
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1818 msg->sol = ptr - buf->p;
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1819 if (likely(*ptr == '\r'))
1820 EAT_AND_JUMP_OR_RETURN(http_msg_rpline_end, HTTP_MSG_RPLINE_END);
1821 goto http_msg_rpline_end;
1822
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1823 case HTTP_MSG_RPLINE_END:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1824 http_msg_rpline_end:
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1825 /* msg->sol must point to the first of CR or LF. */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1826 EXPECT_LF_HERE(ptr, http_msg_invalid, HTTP_MSG_RPLINE_END);
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1827 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_first, HTTP_MSG_HDR_FIRST);
1828 /* stop here */
1829
1830 /*
1831 * Second, states that are specific to the request only
1832 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1833 case HTTP_MSG_RQBEFORE:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1834 http_msg_rqbefore:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1835 if (likely(HTTP_IS_TOKEN(*ptr))) {
Willy Tarreau15de77e2010-01-02 21:59:16 +0100[diff] [blame]1836 /* we have a start of message, but we have to check
1837 * first if we need to remove some CRLF. We can only
Willy Tarreau2e046c62012-03-01 16:08:30 +0100[diff] [blame]1838 * do this when o=0.
Willy Tarreau15de77e2010-01-02 21:59:16 +0100[diff] [blame]1839 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1840 if (likely(ptr != buf->p)) {
1841 if (buf->o)
Willy Tarreau15de77e2010-01-02 21:59:16 +0100[diff] [blame]1842 goto http_msg_ood;
Willy Tarreau1d3bcce2009-12-27 15:50:06 +0100[diff] [blame]1843 /* Remove empty leading lines, as recommended by RFC2616. */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1844 bi_fast_delete(buf, ptr - buf->p);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1845 }
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]1846 msg->sol = 0;
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]1847 msg->sl.rq.l = 0; /* used in debug mode */
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1848 state = HTTP_MSG_RQMETH;
1849 goto http_msg_rqmeth;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1850 }
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1851
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1852 if (unlikely(!HTTP_IS_CRLF(*ptr))) {
1853 state = HTTP_MSG_RQBEFORE;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1854 goto http_msg_invalid;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1855 }
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1856
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1857 if (unlikely(*ptr == '\n'))
1858 EAT_AND_JUMP_OR_RETURN(http_msg_rqbefore, HTTP_MSG_RQBEFORE);
1859 EAT_AND_JUMP_OR_RETURN(http_msg_rqbefore_cr, HTTP_MSG_RQBEFORE_CR);
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1860 /* stop here */
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1861
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1862 case HTTP_MSG_RQBEFORE_CR:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1863 http_msg_rqbefore_cr:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1864 EXPECT_LF_HERE(ptr, http_msg_invalid, HTTP_MSG_RQBEFORE_CR);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1865 EAT_AND_JUMP_OR_RETURN(http_msg_rqbefore, HTTP_MSG_RQBEFORE);
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1866 /* stop here */
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1867
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1868 case HTTP_MSG_RQMETH:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1869 http_msg_rqmeth:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1870 case HTTP_MSG_RQMETH_SP:
1871 case HTTP_MSG_RQURI:
1872 case HTTP_MSG_RQURI_SP:
1873 case HTTP_MSG_RQVER:
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1874 ptr = (char *)http_parse_reqline(msg,
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]1875 state, ptr, end,
1876 &msg->next, &msg->msg_state);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1877 if (unlikely(!ptr))
1878 return;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1879
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1880 /* we have a full request and we know that we have either a CR
1881 * or an LF at <ptr>.
1882 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1883 hdr_idx_set_start(idx, msg->sl.rq.l, *ptr == '\r');
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1884
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1885 msg->sol = ptr - buf->p;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1886 if (likely(*ptr == '\r'))
1887 EAT_AND_JUMP_OR_RETURN(http_msg_rqline_end, HTTP_MSG_RQLINE_END);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1888 goto http_msg_rqline_end;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1889
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1890 case HTTP_MSG_RQLINE_END:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1891 http_msg_rqline_end:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1892 /* check for HTTP/0.9 request : no version information available.
1893 * msg->sol must point to the first of CR or LF.
1894 */
1895 if (unlikely(msg->sl.rq.v_l == 0))
1896 goto http_msg_last_lf;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1897
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1898 EXPECT_LF_HERE(ptr, http_msg_invalid, HTTP_MSG_RQLINE_END);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1899 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_first, HTTP_MSG_HDR_FIRST);
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1900 /* stop here */
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1901
Willy Tarreau8973c702007-01-21 23:58:29 +0100[diff] [blame]1902 /*
1903 * Common states below
1904 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1905 case HTTP_MSG_HDR_FIRST:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1906 http_msg_hdr_first:
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1907 msg->sol = ptr - buf->p;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1908 if (likely(!HTTP_IS_CRLF(*ptr))) {
1909 goto http_msg_hdr_name;
1910 }
1911
1912 if (likely(*ptr == '\r'))
1913 EAT_AND_JUMP_OR_RETURN(http_msg_last_lf, HTTP_MSG_LAST_LF);
1914 goto http_msg_last_lf;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1915
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1916 case HTTP_MSG_HDR_NAME:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1917 http_msg_hdr_name:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1918 /* assumes msg->sol points to the first char */
1919 if (likely(HTTP_IS_TOKEN(*ptr)))
1920 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_name, HTTP_MSG_HDR_NAME);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1921
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]1922 if (likely(*ptr == ':'))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1923 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]1924
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1925 if (likely(msg->err_pos < -1) || *ptr == '\n') {
1926 state = HTTP_MSG_HDR_NAME;
Willy Tarreau32a4ec02009-04-02 11:35:18 +0200[diff] [blame]1927 goto http_msg_invalid;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1928 }
Willy Tarreau32a4ec02009-04-02 11:35:18 +0200[diff] [blame]1929
1930 if (msg->err_pos == -1) /* capture error pointer */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1931 msg->err_pos = ptr - buf->p; /* >= 0 now */
Willy Tarreau32a4ec02009-04-02 11:35:18 +0200[diff] [blame]1932
1933 /* and we still accept this non-token character */
1934 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_name, HTTP_MSG_HDR_NAME);
Willy Tarreau230fd0b2006-12-17 12:05:00 +0100[diff] [blame]1935
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1936 case HTTP_MSG_HDR_L1_SP:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1937 http_msg_hdr_l1_sp:
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]1938 /* assumes msg->sol points to the first char */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1939 if (likely(HTTP_IS_SPHT(*ptr)))
1940 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]1941
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1942 /* header value can be basically anything except CR/LF */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1943 msg->sov = ptr - buf->p;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1944
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1945 if (likely(!HTTP_IS_CRLF(*ptr))) {
1946 goto http_msg_hdr_val;
1947 }
1948
1949 if (likely(*ptr == '\r'))
1950 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_l1_lf, HTTP_MSG_HDR_L1_LF);
1951 goto http_msg_hdr_l1_lf;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1952
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1953 case HTTP_MSG_HDR_L1_LF:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1954 http_msg_hdr_l1_lf:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1955 EXPECT_LF_HERE(ptr, http_msg_invalid, HTTP_MSG_HDR_L1_LF);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1956 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]1957
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1958 case HTTP_MSG_HDR_L1_LWS:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1959 http_msg_hdr_l1_lws:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1960 if (likely(HTTP_IS_SPHT(*ptr))) {
1961 /* replace HT,CR,LF with spaces */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]1962 for (; buf->p + msg->sov < ptr; msg->sov++)
1963 buf->p[msg->sov] = ' ';
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1964 goto http_msg_hdr_l1_sp;
1965 }
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]1966 /* we had a header consisting only in spaces ! */
Willy Tarreau12e48b32012-03-05 16:57:34 +0100[diff] [blame]1967 msg->eol = msg->sov;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1968 goto http_msg_complete_header;
1969
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1970 case HTTP_MSG_HDR_VAL:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]1971 http_msg_hdr_val:
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]1972 /* assumes msg->sol points to the first char, and msg->sov
1973 * points to the first character of the value.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1974 */
Willy Tarreau0431f9d2016-11-05 17:35:40 +0100[diff] [blame]1975
1976 /* speedup: we'll skip packs of 4 or 8 bytes not containing bytes 0x0D
1977 * and lower. In fact since most of the time is spent in the loop, we
1978 * also remove the sign bit test so that bytes 0x8e..0x0d break the
1979 * loop, but we don't care since they're very rare in header values.
1980 */
1981#if defined(__x86_64__)
1982 while (ptr <= end - sizeof(long)) {
1983 if ((*(long *)ptr - 0x0e0e0e0e0e0e0e0eULL) & 0x8080808080808080ULL)
1984 goto http_msg_hdr_val2;
1985 ptr += sizeof(long);
1986 }
1987#endif
1988#if defined(__x86_64__) || \
1989 defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) || \
1990 defined(__ARM_ARCH_7A__)
1991 while (ptr <= end - sizeof(int)) {
1992 if ((*(int*)ptr - 0x0e0e0e0e) & 0x80808080)
1993 goto http_msg_hdr_val2;
1994 ptr += sizeof(int);
1995 }
1996#endif
1997 http_msg_hdr_val2:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1998 if (likely(!HTTP_IS_CRLF(*ptr)))
Willy Tarreau0431f9d2016-11-05 17:35:40 +0100[diff] [blame]1999 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_val2, HTTP_MSG_HDR_VAL);
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]2000
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2001 msg->eol = ptr - buf->p;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2002 /* Note: we could also copy eol into ->eoh so that we have the
2003 * real header end in case it ends with lots of LWS, but is this
2004 * really needed ?
2005 */
2006 if (likely(*ptr == '\r'))
2007 EAT_AND_JUMP_OR_RETURN(http_msg_hdr_l2_lf, HTTP_MSG_HDR_L2_LF);
2008 goto http_msg_hdr_l2_lf;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]2009
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2010 case HTTP_MSG_HDR_L2_LF:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]2011 http_msg_hdr_l2_lf:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2012 EXPECT_LF_HERE(ptr, http_msg_invalid, HTTP_MSG_HDR_L2_LF);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2013 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]2014
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2015 case HTTP_MSG_HDR_L2_LWS:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]2016 http_msg_hdr_l2_lws:
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2017 if (unlikely(HTTP_IS_SPHT(*ptr))) {
2018 /* LWS: replace HT,CR,LF with spaces */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2019 for (; buf->p + msg->eol < ptr; msg->eol++)
2020 buf->p[msg->eol] = ' ';
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2021 goto http_msg_hdr_val;
2022 }
2023 http_msg_complete_header:
2024 /*
2025 * It was a new header, so the last one is finished.
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]2026 * Assumes msg->sol points to the first char, msg->sov points
2027 * to the first character of the value and msg->eol to the
2028 * first CR or LF so we know how the line ends. We insert last
2029 * header into the index.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2030 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2031 if (unlikely(hdr_idx_add(msg->eol - msg->sol, buf->p[msg->eol] == '\r',
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2032 idx, idx->tail) < 0)) {
2033 state = HTTP_MSG_HDR_L2_LWS;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2034 goto http_msg_invalid;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2035 }
Willy Tarreau230fd0b2006-12-17 12:05:00 +0100[diff] [blame]2036
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2037 msg->sol = ptr - buf->p;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2038 if (likely(!HTTP_IS_CRLF(*ptr))) {
2039 goto http_msg_hdr_name;
2040 }
2041
2042 if (likely(*ptr == '\r'))
2043 EAT_AND_JUMP_OR_RETURN(http_msg_last_lf, HTTP_MSG_LAST_LF);
2044 goto http_msg_last_lf;
Willy Tarreau230fd0b2006-12-17 12:05:00 +0100[diff] [blame]2045
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2046 case HTTP_MSG_LAST_LF:
Willy Tarreaue3f284a2010-09-28 19:42:42 +0200[diff] [blame]2047 http_msg_last_lf:
Willy Tarreau0558a022014-03-13 15:48:45 +0100[diff] [blame]2048 /* Assumes msg->sol points to the first of either CR or LF.
2049 * Sets ->sov and ->next to the total header length, ->eoh to
2050 * the last CRLF, and ->eol to the last CRLF length (1 or 2).
2051 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2052 EXPECT_LF_HERE(ptr, http_msg_invalid, HTTP_MSG_LAST_LF);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2053 ptr++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2054 msg->sov = msg->next = ptr - buf->p;
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]2055 msg->eoh = msg->sol;
2056 msg->sol = 0;
Willy Tarreau0558a022014-03-13 15:48:45 +0100[diff] [blame]2057 msg->eol = msg->sov - msg->eoh;
Willy Tarreaub326fcc2007-03-03 13:54:32 +0100[diff] [blame]2058 msg->msg_state = HTTP_MSG_BODY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2059 return;
Willy Tarreaub56928a2012-04-16 14:51:55 +0200[diff] [blame]2060
2061 case HTTP_MSG_ERROR:
2062 /* this may only happen if we call http_msg_analyser() twice with an error */
2063 break;
2064
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2065 default:
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]2066#ifdef DEBUG_FULL
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2067 fprintf(stderr, "FIXME !!!! impossible state at %s:%d = %d\n", __FILE__, __LINE__, state);
2068 exit(1);
Willy Tarreau230fd0b2006-12-17 12:05:00 +0100[diff] [blame]2069#endif
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]2070 ;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2071 }
2072 http_msg_ood:
2073 /* out of data */
Willy Tarreaub326fcc2007-03-03 13:54:32 +0100[diff] [blame]2074 msg->msg_state = state;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2075 msg->next = ptr - buf->p;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2076 return;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2077
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2078 http_msg_invalid:
2079 /* invalid message */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2080 msg->err_state = state;
Willy Tarreaub326fcc2007-03-03 13:54:32 +0100[diff] [blame]2081 msg->msg_state = HTTP_MSG_ERROR;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2082 msg->next = ptr - buf->p;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2083 return;
2084}
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]2085
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]2086/* convert an HTTP/0.9 request into an HTTP/1.0 request. Returns 1 if the
2087 * conversion succeeded, 0 in case of error. If the request was already 1.X,
2088 * nothing is done and 1 is returned.
2089 */
Willy Tarreau418bfcc2012-03-09 13:56:20 +0100[diff] [blame]2090static int http_upgrade_v09_to_v10(struct http_txn *txn)
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]2091{
2092 int delta;
2093 char *cur_end;
Willy Tarreau418bfcc2012-03-09 13:56:20 +0100[diff] [blame]2094 struct http_msg *msg = &txn->req;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]2095
2096 if (msg->sl.rq.v_l != 0)
2097 return 1;
2098
Apollon Oikonomopoulos25a15222014-04-06 02:46:00 +0300[diff] [blame]2099 /* RFC 1945 allows only GET for HTTP/0.9 requests */
2100 if (txn->meth != HTTP_METH_GET)
2101 return 0;
2102
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2103 cur_end = msg->chn->buf->p + msg->sl.rq.l;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]2104
2105 if (msg->sl.rq.u_l == 0) {
Apollon Oikonomopoulos25a15222014-04-06 02:46:00 +0300[diff] [blame]2106 /* HTTP/0.9 requests *must* have a request URI, per RFC 1945 */
2107 return 0;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]2108 }
2109 /* add HTTP version */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2110 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]2111 http_msg_move_end(msg, delta);
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]2112 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]2113 cur_end = (char *)http_parse_reqline(msg,
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]2114 HTTP_MSG_RQMETH,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2115 msg->chn->buf->p, cur_end + 1,
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]2116 NULL, NULL);
2117 if (unlikely(!cur_end))
2118 return 0;
2119
2120 /* we have a full HTTP/1.0 request now and we know that
2121 * we have either a CR or an LF at <ptr>.
2122 */
2123 hdr_idx_set_start(&txn->hdr_idx, msg->sl.rq.l, *cur_end == '\r');
2124 return 1;
2125}
2126
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2127/* Parse the Connection: header of an HTTP request, looking for both "close"
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2128 * and "keep-alive" values. If we already know that some headers may safely
2129 * be removed, we remove them now. The <to_del> flags are used for that :
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2130 * - bit 0 means remove "close" headers (in HTTP/1.0 requests/responses)
2131 * - 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]2132 * Presence of the "Upgrade" token is also checked and reported.
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2133 * The TX_HDR_CONN_* flags are adjusted in txn->flags depending on what was
2134 * found, and TX_CON_*_SET is adjusted depending on what is left so only
2135 * harmless combinations may be removed. Do not call that after changes have
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2136 * been processed.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2137 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2138void 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]2139{
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2140 struct hdr_ctx ctx;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2141 const char *hdr_val = "Connection";
2142 int hdr_len = 10;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2143
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2144 if (txn->flags & TX_HDR_CONN_PRS)
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2145 return;
2146
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2147 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
2148 hdr_val = "Proxy-Connection";
2149 hdr_len = 16;
2150 }
2151
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2152 ctx.idx = 0;
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2153 txn->flags &= ~(TX_CON_KAL_SET|TX_CON_CLO_SET);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2154 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]2155 if (ctx.vlen >= 10 && word_match(ctx.line + ctx.val, ctx.vlen, "keep-alive", 10)) {
2156 txn->flags |= TX_HDR_CONN_KAL;
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2157 if (to_del & 2)
2158 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2159 else
2160 txn->flags |= TX_CON_KAL_SET;
2161 }
2162 else if (ctx.vlen >= 5 && word_match(ctx.line + ctx.val, ctx.vlen, "close", 5)) {
2163 txn->flags |= TX_HDR_CONN_CLO;
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2164 if (to_del & 1)
2165 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2166 else
2167 txn->flags |= TX_CON_CLO_SET;
2168 }
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]2169 else if (ctx.vlen >= 7 && word_match(ctx.line + ctx.val, ctx.vlen, "upgrade", 7)) {
2170 txn->flags |= TX_HDR_CONN_UPG;
2171 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2172 }
2173
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2174 txn->flags |= TX_HDR_CONN_PRS;
2175 return;
2176}
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2177
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2178/* Apply desired changes on the Connection: header. Values may be removed and/or
2179 * added depending on the <wanted> flags, which are exclusively composed of
2180 * TX_CON_CLO_SET and TX_CON_KAL_SET, depending on what flags are desired. The
2181 * TX_CON_*_SET flags are adjusted in txn->flags depending on what is left.
2182 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2183void http_change_connection_header(struct http_txn *txn, struct http_msg *msg, int wanted)
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2184{
2185 struct hdr_ctx ctx;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2186 const char *hdr_val = "Connection";
2187 int hdr_len = 10;
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2188
2189 ctx.idx = 0;
2190
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2191
2192 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
2193 hdr_val = "Proxy-Connection";
2194 hdr_len = 16;
2195 }
2196
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2197 txn->flags &= ~(TX_CON_CLO_SET | TX_CON_KAL_SET);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2198 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]2199 if (ctx.vlen >= 10 && word_match(ctx.line + ctx.val, ctx.vlen, "keep-alive", 10)) {
2200 if (wanted & TX_CON_KAL_SET)
2201 txn->flags |= TX_CON_KAL_SET;
2202 else
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2203 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2204 }
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2205 else if (ctx.vlen >= 5 && word_match(ctx.line + ctx.val, ctx.vlen, "close", 5)) {
2206 if (wanted & TX_CON_CLO_SET)
2207 txn->flags |= TX_CON_CLO_SET;
2208 else
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2209 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreau0dfdf192010-01-05 11:33:11 +0100[diff] [blame]2210 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2211 }
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2212
2213 if (wanted == (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
2214 return;
2215
2216 if ((wanted & TX_CON_CLO_SET) && !(txn->flags & TX_CON_CLO_SET)) {
2217 txn->flags |= TX_CON_CLO_SET;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2218 hdr_val = "Connection: close";
2219 hdr_len = 17;
2220 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
2221 hdr_val = "Proxy-Connection: close";
2222 hdr_len = 23;
2223 }
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2224 http_header_add_tail2(msg, &txn->hdr_idx, hdr_val, hdr_len);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2225 }
2226
2227 if ((wanted & TX_CON_KAL_SET) && !(txn->flags & TX_CON_KAL_SET)) {
2228 txn->flags |= TX_CON_KAL_SET;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2229 hdr_val = "Connection: keep-alive";
2230 hdr_len = 22;
2231 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
2232 hdr_val = "Proxy-Connection: keep-alive";
2233 hdr_len = 28;
2234 }
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]2235 http_header_add_tail2(msg, &txn->hdr_idx, hdr_val, hdr_len);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]2236 }
2237 return;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2238}
2239
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]2240/* Parse the chunk size at msg->next. Once done, caller should adjust ->next to
2241 * point to the first byte of data after the chunk size, so that we know we can
2242 * forward exactly msg->next bytes. msg->sol contains the exact number of bytes
2243 * forming the chunk size. That way it is always possible to differentiate
2244 * between the start of the body and the start of the data. Return the number
2245 * of byte parsed on success, 0 when some data is missing, <0 on error. Note:
2246 * this function is designed to parse wrapped CRLF at the end of the buffer.
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2247 */
Willy Tarreau24e6d972012-10-26 00:49:52 +0200[diff] [blame]2248static inline int http_parse_chunk_size(struct http_msg *msg)
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2249{
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2250 const struct buffer *buf = msg->chn->buf;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2251 const char *ptr = b_ptr(buf, msg->next);
Willy Tarreau4baf44b2012-03-09 14:10:20 +0100[diff] [blame]2252 const char *ptr_old = ptr;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2253 const char *end = buf->data + buf->size;
2254 const char *stop = bi_end(buf);
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2255 unsigned int chunk = 0;
2256
2257 /* The chunk size is in the following form, though we are only
2258 * interested in the size and CRLF :
2259 * 1*HEXDIGIT *WSP *[ ';' extensions ] CRLF
2260 */
2261 while (1) {
2262 int c;
Willy Tarreau363a5bb2012-03-02 20:14:45 +0100[diff] [blame]2263 if (ptr == stop)
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2264 return 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2265 c = hex2i(*ptr);
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2266 if (c < 0) /* not a hex digit anymore */
2267 break;
Willy Tarreau0161d622013-04-02 01:26:55 +0200[diff] [blame]2268 if (unlikely(++ptr >= end))
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2269 ptr = buf->data;
Willy Tarreau431946e2012-02-24 19:20:12 +0100[diff] [blame]2270 if (chunk & 0xF8000000) /* integer overflow will occur if result >= 2GB */
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2271 goto error;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2272 chunk = (chunk << 4) + c;
2273 }
2274
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2275 /* empty size not allowed */
Willy Tarreau0161d622013-04-02 01:26:55 +0200[diff] [blame]2276 if (unlikely(ptr == ptr_old))
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2277 goto error;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2278
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]2279 while (HTTP_IS_SPHT(*ptr)) {
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2280 if (++ptr >= end)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2281 ptr = buf->data;
Willy Tarreau0161d622013-04-02 01:26:55 +0200[diff] [blame]2282 if (unlikely(ptr == stop))
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2283 return 0;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2284 }
2285
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2286 /* Up to there, we know that at least one byte is present at *ptr. Check
2287 * for the end of chunk size.
2288 */
2289 while (1) {
2290 if (likely(HTTP_IS_CRLF(*ptr))) {
2291 /* we now have a CR or an LF at ptr */
2292 if (likely(*ptr == '\r')) {
2293 if (++ptr >= end)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2294 ptr = buf->data;
Willy Tarreau363a5bb2012-03-02 20:14:45 +0100[diff] [blame]2295 if (ptr == stop)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2296 return 0;
2297 }
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2298
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2299 if (*ptr != '\n')
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2300 goto error;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2301 if (++ptr >= end)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2302 ptr = buf->data;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2303 /* done */
2304 break;
2305 }
2306 else if (*ptr == ';') {
2307 /* chunk extension, ends at next CRLF */
2308 if (++ptr >= end)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2309 ptr = buf->data;
Willy Tarreau363a5bb2012-03-02 20:14:45 +0100[diff] [blame]2310 if (ptr == stop)
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2311 return 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2312
2313 while (!HTTP_IS_CRLF(*ptr)) {
2314 if (++ptr >= end)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2315 ptr = buf->data;
Willy Tarreau363a5bb2012-03-02 20:14:45 +0100[diff] [blame]2316 if (ptr == stop)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2317 return 0;
2318 }
2319 /* we have a CRLF now, loop above */
2320 continue;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2321 }
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2322 else
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2323 goto error;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2324 }
2325
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]2326 /* OK we found our CRLF and now <ptr> points to the next byte, which may
2327 * or may not be present. We save the number of bytes parsed into
2328 * msg->sol.
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2329 */
Willy Tarreauc24715e2014-04-17 15:21:20 +0200[diff] [blame]2330 msg->sol = ptr - ptr_old;
Willy Tarreau0161d622013-04-02 01:26:55 +0200[diff] [blame]2331 if (unlikely(ptr < ptr_old))
Willy Tarreauc24715e2014-04-17 15:21:20 +0200[diff] [blame]2332 msg->sol += buf->size;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]2333 msg->chunk_len = chunk;
2334 msg->body_len += chunk;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]2335 return msg->sol;
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2336 error:
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2337 msg->err_pos = buffer_count(buf, buf->p, ptr);
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2338 return -1;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]2339}
2340
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]2341/* This function skips trailers in the buffer associated with HTTP message
2342 * <msg>. The first visited position is msg->next. If the end of the trailers is
2343 * found, the function returns >0. So, the caller can automatically schedul it
2344 * to be forwarded, and switch msg->msg_state to HTTP_MSG_DONE. If not enough
2345 * data are available, the function does not change anything except maybe
2346 * msg->sol if it could parse some lines, and returns zero. If a parse error
2347 * is encountered, the function returns < 0 and does not change anything except
2348 * maybe msg->sol. Note that the message must already be in HTTP_MSG_TRAILERS
2349 * state before calling this function, which implies that all non-trailers data
2350 * have already been scheduled for forwarding, and that msg->next exactly
2351 * matches the length of trailers already parsed and not forwarded. It is also
2352 * important to note that this function is designed to be able to parse wrapped
2353 * headers at end of buffer.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2354 */
Willy Tarreau24e6d972012-10-26 00:49:52 +0200[diff] [blame]2355static int http_forward_trailers(struct http_msg *msg)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2356{
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2357 const struct buffer *buf = msg->chn->buf;
Willy Tarreau4baf44b2012-03-09 14:10:20 +0100[diff] [blame]2358
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]2359 /* we have msg->next which points to next line. Look for CRLF. But
2360 * first, we reset msg->sol */
2361 msg->sol = 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2362 while (1) {
Willy Tarreau4baf44b2012-03-09 14:10:20 +0100[diff] [blame]2363 const char *p1 = NULL, *p2 = NULL;
Christopher Faulet2fb28802015-12-01 10:40:57 +0100[diff] [blame]2364 const char *start = b_ptr(buf, msg->next + msg->sol);
2365 const char *stop = bi_end(buf);
2366 const char *ptr = start;
2367 int bytes = 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2368
2369 /* scan current line and stop at LF or CRLF */
2370 while (1) {
Willy Tarreau363a5bb2012-03-02 20:14:45 +0100[diff] [blame]2371 if (ptr == stop)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2372 return 0;
2373
2374 if (*ptr == '\n') {
2375 if (!p1)
2376 p1 = ptr;
2377 p2 = ptr;
2378 break;
2379 }
2380
2381 if (*ptr == '\r') {
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2382 if (p1) {
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2383 msg->err_pos = buffer_count(buf, buf->p, ptr);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2384 return -1;
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2385 }
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2386 p1 = ptr;
2387 }
2388
2389 ptr++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2390 if (ptr >= buf->data + buf->size)
2391 ptr = buf->data;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2392 }
2393
2394 /* after LF; point to beginning of next line */
2395 p2++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2396 if (p2 >= buf->data + buf->size)
2397 p2 = buf->data;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2398
Christopher Faulet2fb28802015-12-01 10:40:57 +0100[diff] [blame]2399 bytes = p2 - start;
Willy Tarreau638cd022010-01-03 07:42:04 +0100[diff] [blame]2400 if (bytes < 0)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2401 bytes += buf->size;
Christopher Faulet2fb28802015-12-01 10:40:57 +0100[diff] [blame]2402 msg->sol += bytes;
Willy Tarreau638cd022010-01-03 07:42:04 +0100[diff] [blame]2403
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]2404 /* LF/CRLF at beginning of line => end of trailers at p2.
2405 * Everything was scheduled for forwarding, there's nothing left
Christopher Faulet2fb28802015-12-01 10:40:57 +0100[diff] [blame]2406 * from this message. */
2407 if (p1 == start)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2408 return 1;
Christopher Faulet2fb28802015-12-01 10:40:57 +0100[diff] [blame]2409
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2410 /* OK, next line then */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2411 }
2412}
2413
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]2414/* This function may be called only in HTTP_MSG_CHUNK_CRLF. It reads the CRLF or
2415 * a possible LF alone at the end of a chunk. The caller should adjust msg->next
2416 * in order to include this part into the next forwarding phase. Note that the
2417 * caller must ensure that ->p points to the first byte to parse. It returns
2418 * the number of bytes parsed on success, so the caller can set msg_state to
2419 * HTTP_MSG_CHUNK_SIZE. If not enough data are available, the function does not
2420 * change anything and returns zero. If a parse error is encountered, the
2421 * function returns < 0. Note: this function is designed to parse wrapped CRLF
2422 * at the end of the buffer.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2423 */
Willy Tarreau24e6d972012-10-26 00:49:52 +0200[diff] [blame]2424static inline int http_skip_chunk_crlf(struct http_msg *msg)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2425{
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2426 const struct buffer *buf = msg->chn->buf;
Willy Tarreau4baf44b2012-03-09 14:10:20 +0100[diff] [blame]2427 const char *ptr;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2428 int bytes;
2429
2430 /* NB: we'll check data availabilty at the end. It's not a
2431 * problem because whatever we match first will be checked
2432 * against the correct length.
2433 */
2434 bytes = 1;
Willy Tarreau0669d7d2014-04-17 11:40:10 +0200[diff] [blame]2435 ptr = b_ptr(buf, msg->next);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2436 if (*ptr == '\r') {
2437 bytes++;
2438 ptr++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2439 if (ptr >= buf->data + buf->size)
2440 ptr = buf->data;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2441 }
2442
Willy Tarreau0669d7d2014-04-17 11:40:10 +0200[diff] [blame]2443 if (msg->next + bytes > buf->i)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2444 return 0;
2445
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2446 if (*ptr != '\n') {
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]2447 msg->err_pos = buffer_count(buf, buf->p, ptr);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2448 return -1;
Willy Tarreaue1582eb2010-12-12 13:10:11 +0100[diff] [blame]2449 }
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]2450 return bytes;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]2451}
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2452
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]2453/* Parses a qvalue and returns it multipled by 1000, from 0 to 1000. If the
2454 * value is larger than 1000, it is bound to 1000. The parser consumes up to
2455 * 1 digit, one dot and 3 digits and stops on the first invalid character.
2456 * Unparsable qvalues return 1000 as "q=1.000".
2457 */
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]2458int parse_qvalue(const char *qvalue, const char **end)
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]2459{
2460 int q = 1000;
2461
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]2462 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]2463 goto out;
2464 q = (*qvalue++ - '0') * 1000;
2465
2466 if (*qvalue++ != '.')
2467 goto out;
2468
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]2469 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]2470 goto out;
2471 q += (*qvalue++ - '0') * 100;
2472
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]2473 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]2474 goto out;
2475 q += (*qvalue++ - '0') * 10;
2476
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]2477 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]2478 goto out;
2479 q += (*qvalue++ - '0') * 1;
2480 out:
2481 if (q > 1000)
2482 q = 1000;
Willy Tarreau38b3aa52014-04-22 23:32:05 +0200[diff] [blame]2483 if (end)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]2484 *end = qvalue;
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]2485 return q;
2486}
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]2487
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2488void 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]2489{
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]2490 struct proxy *fe = strm_fe(s);
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2491 int tmp = TX_CON_WANT_KAL;
2492
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2493 if (!((fe->options2|s->be->options2) & PR_O2_FAKE_KA)) {
2494 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_TUN ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2495 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_TUN)
2496 tmp = TX_CON_WANT_TUN;
2497
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2498 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2499 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)
2500 tmp = TX_CON_WANT_TUN;
2501 }
2502
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2503 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2504 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL) {
2505 /* option httpclose + server_close => forceclose */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2506 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2507 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)
2508 tmp = TX_CON_WANT_CLO;
2509 else
2510 tmp = TX_CON_WANT_SCL;
2511 }
2512
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2513 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_FCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2514 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_FCL)
2515 tmp = TX_CON_WANT_CLO;
2516
2517 if ((txn->flags & TX_CON_WANT_MSK) < tmp)
2518 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | tmp;
2519
2520 if (!(txn->flags & TX_HDR_CONN_PRS) &&
2521 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) {
2522 /* parse the Connection header and possibly clean it */
2523 int to_del = 0;
2524 if ((msg->flags & HTTP_MSGF_VER_11) ||
2525 ((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2526 !((fe->options2|s->be->options2) & PR_O2_FAKE_KA)))
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2527 to_del |= 2; /* remove "keep-alive" */
2528 if (!(msg->flags & HTTP_MSGF_VER_11))
2529 to_del |= 1; /* remove "close" */
2530 http_parse_connection_header(txn, msg, to_del);
2531 }
2532
2533 /* check if client or config asks for explicit close in KAL/SCL */
2534 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
2535 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) &&
2536 ((txn->flags & TX_HDR_CONN_CLO) || /* "connection: close" */
2537 (!(msg->flags & HTTP_MSGF_VER_11) && !(txn->flags & TX_HDR_CONN_KAL)) || /* no "connection: k-a" in 1.0 */
2538 !(msg->flags & HTTP_MSGF_XFER_LEN) || /* no length known => close */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2539 fe->state == PR_STSTOPPED)) /* frontend is stopping */
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2540 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
2541}
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]2542
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2543/* This stream analyser waits for a complete HTTP request. It returns 1 if the
2544 * processing can continue on next analysers, or zero if it either needs more
2545 * data or wants to immediately abort the request (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]2546 * 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]2547 * when it has nothing left to do, and may remove any analyser when it wants to
2548 * abort.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2549 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2550int http_wait_for_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2551{
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2552 /*
2553 * We will parse the partial (or complete) lines.
2554 * We will check the request syntax, and also join multi-line
2555 * headers. An index of all the lines will be elaborated while
2556 * parsing.
2557 *
2558 * For the parsing, we use a 28 states FSM.
2559 *
2560 * Here is the information we currently have :
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2561 * req->buf->p = beginning of request
2562 * req->buf->p + msg->eoh = end of processed headers / start of current one
2563 * req->buf->p + req->buf->i = end of input data
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]2564 * msg->eol = end of current header or line (LF or CRLF)
2565 * msg->next = first non-visited byte
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2566 *
2567 * 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]2568 * we will set a few fields (txn->meth, sn->flags/SF_REDIRECTABLE).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2569 * We also check for monitor-uri, logging, HTTP/0.9 to 1.0 conversion, and
2570 * finally headers capture.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2571 */
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]2572
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2573 int cur_idx;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]2574 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2575 struct http_txn *txn = s->txn;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2576 struct http_msg *msg = &txn->req;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2577 struct hdr_ctx ctx;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]2578
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2579 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]2580 now_ms, __FUNCTION__,
2581 s,
2582 req,
2583 req->rex, req->wex,
2584 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2585 req->buf->i,
Willy Tarreau6bf17362009-02-24 10:48:35 +0100[diff] [blame]2586 req->analysers);
2587
Willy Tarreau52a0c602009-08-16 22:45:38 +0200[diff] [blame]2588 /* we're speaking HTTP here, so let's speak HTTP to the client */
2589 s->srv_error = http_return_srv_error;
2590
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]2591 /* There's a protected area at the end of the buffer for rewriting
2592 * purposes. We don't want to start to parse the request if the
2593 * protected area is affected, because we may have to move processed
2594 * data later, which is much more complicated.
2595 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2596 if (buffer_not_empty(req->buf) && msg->msg_state < HTTP_MSG_ERROR) {
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200[diff] [blame]2597
2598 /* This point is executed when some data is avalaible for analysis,
2599 * so we log the end of the idle time. */
2600 if (s->logs.t_idle == -1)
2601 s->logs.t_idle = tv_ms_elapsed(&s->logs.tv_accept, &now) - s->logs.t_handshake;
2602
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]2603 if (txn->flags & TX_NOT_FIRST) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]2604 if (unlikely(!channel_is_rewritable(req))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]2605 if (req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]2606 goto failed_keep_alive;
Willy Tarreau2ab6eb12010-01-02 22:04:45 +0100[diff] [blame]2607 /* some data has still not left the buffer, wake us once that's done */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]2608 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]2609 req->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]2610 req->flags |= CF_WAKE_WRITE;
Willy Tarreau2ab6eb12010-01-02 22:04:45 +0100[diff] [blame]2611 return 0;
2612 }
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]2613 if (unlikely(bi_end(req->buf) < b_ptr(req->buf, msg->next) ||
2614 bi_end(req->buf) > req->buf->data + req->buf->size - global.tune.maxrewrite))
2615 buffer_slow_realign(req->buf);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]2616 }
2617
Willy Tarreau065e8332010-01-08 00:30:20 +0100[diff] [blame]2618 /* Note that we have the same problem with the response ; we
2619 * may want to send a redirect, error or anything which requires
2620 * some spare space. So we'll ensure that we have at least
2621 * maxrewrite bytes available in the response buffer before
2622 * processing that one. This will only affect pipelined
2623 * keep-alive requests.
2624 */
2625 if ((txn->flags & TX_NOT_FIRST) &&
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]2626 unlikely(!channel_is_rewritable(&s->res) ||
2627 bi_end(s->res.buf) < b_ptr(s->res.buf, txn->rsp.next) ||
2628 bi_end(s->res.buf) > s->res.buf->data + s->res.buf->size - global.tune.maxrewrite)) {
2629 if (s->res.buf->o) {
2630 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]2631 goto failed_keep_alive;
Willy Tarreau065e8332010-01-08 00:30:20 +0100[diff] [blame]2632 /* don't let a connection request be initiated */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]2633 channel_dont_connect(req);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]2634 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
2635 s->res.flags |= CF_WAKE_WRITE;
2636 s->res.analysers |= an_bit; /* wake us up once it changes */
Willy Tarreau065e8332010-01-08 00:30:20 +0100[diff] [blame]2637 return 0;
2638 }
2639 }
2640
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2641 if (likely(msg->next < req->buf->i)) /* some unparsed data are available */
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]2642 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]2643 }
2644
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2645 /* 1: we might have to print this header in debug mode */
2646 if (unlikely((global.mode & MODE_DEBUG) &&
2647 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]2648 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2649 char *eol, *sol;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2650
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2651 sol = req->buf->p;
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]2652 /* this is a bit complex : in case of error on the request line,
2653 * we know that rq.l is still zero, so we display only the part
2654 * up to the end of the line (truncated by debug_hdr).
2655 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2656 eol = sol + (msg->sl.rq.l ? msg->sl.rq.l : req->buf->i);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2657 debug_hdr("clireq", s, sol, eol);
Willy Tarreau45e73e32006-12-17 00:05:15 +0100[diff] [blame]2658
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2659 sol += hdr_idx_first_pos(&txn->hdr_idx);
2660 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2661
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2662 while (cur_idx) {
2663 eol = sol + txn->hdr_idx.v[cur_idx].len;
2664 debug_hdr("clihdr", s, sol, eol);
2665 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
2666 cur_idx = txn->hdr_idx.v[cur_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2667 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2668 }
2669
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2670
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2671 /*
2672 * Now we quickly check if we have found a full valid request.
2673 * If not so, we check the FD and buffer states before leaving.
2674 * A full request is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]2675 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]2676 * requests are checked first. When waiting for a second request
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2677 * on a keep-alive stream, if we encounter and error, close, t/o,
2678 * we note the error in the stream flags but don't set any state.
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]2679 * Since the error will be noted there, it will not be counted by
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2680 * process_stream() as a frontend error.
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]2681 * Last, we may increase some tracked counters' http request errors on
2682 * the cases that are deliberately the client's fault. For instance,
2683 * a timeout or connection reset is not counted as an error. However
2684 * a bad request is.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2685 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2686
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]2687 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2688 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2689 * First, let's catch bad requests.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2690 */
Willy Tarreau3e1b6d12010-03-04 23:02:38 +0100[diff] [blame]2691 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2692 stream_inc_http_req_ctr(s);
2693 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2694 proxy_inc_fe_req_ctr(sess->fe);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2695 goto return_bad_req;
Willy Tarreau3e1b6d12010-03-04 23:02:38 +0100[diff] [blame]2696 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2697
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2698 /* 1: Since we are in header mode, if there's no space
2699 * left for headers, we won't be able to free more
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2700 * later, so the stream will never terminate. We
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2701 * must terminate it now.
2702 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2703 if (unlikely(buffer_full(req->buf, global.tune.maxrewrite))) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2704 /* FIXME: check if URI is set and return Status
2705 * 414 Request URI too long instead.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2706 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2707 stream_inc_http_req_ctr(s);
2708 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2709 proxy_inc_fe_req_ctr(sess->fe);
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]2710 if (msg->err_pos < 0)
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2711 msg->err_pos = req->buf->i;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2712 goto return_bad_req;
2713 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2714
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2715 /* 2: have we encountered a read error ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]2716 else if (req->flags & CF_READ_ERROR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2717 if (!(s->flags & SF_ERR_MASK))
2718 s->flags |= SF_ERR_CLICL;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]2719
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]2720 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]2721 goto failed_keep_alive;
2722
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]2723 if (sess->fe->options & PR_O_IGNORE_PRB)
2724 goto failed_keep_alive;
2725
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2726 /* we cannot return any message on error */
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]2727 if (msg->err_pos >= 0) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2728 http_capture_bad_message(&sess->fe->invalid_req, s, msg, msg->err_state, sess->fe);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2729 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]2730 }
2731
Willy Tarreaudc979f22012-12-04 10:39:01 +0100[diff] [blame]2732 txn->status = 400;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2733 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2734 msg->msg_state = HTTP_MSG_ERROR;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2735 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]2736 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2737 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2738 proxy_inc_fe_req_ctr(sess->fe);
2739 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]2740 if (sess->listener->counters)
2741 sess->listener->counters->failed_req++;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]2742
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2743 if (!(s->flags & SF_FINST_MASK))
2744 s->flags |= SF_FINST_R;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2745 return 0;
2746 }
Willy Tarreauf9839bd2008-08-27 23:57:16 +0200[diff] [blame]2747
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2748 /* 3: has the read timeout expired ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]2749 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]2750 if (!(s->flags & SF_ERR_MASK))
2751 s->flags |= SF_ERR_CLITO;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]2752
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]2753 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]2754 goto failed_keep_alive;
2755
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]2756 if (sess->fe->options & PR_O_IGNORE_PRB)
2757 goto failed_keep_alive;
2758
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2759 /* read timeout : give up with an error message. */
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]2760 if (msg->err_pos >= 0) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2761 http_capture_bad_message(&sess->fe->invalid_req, s, msg, msg->err_state, sess->fe);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2762 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]2763 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2764 txn->status = 408;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2765 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2766 msg->msg_state = HTTP_MSG_ERROR;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2767 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_408));
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]2768 req->analysers &= AN_REQ_FLT_END;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]2769
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2770 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2771 proxy_inc_fe_req_ctr(sess->fe);
2772 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]2773 if (sess->listener->counters)
2774 sess->listener->counters->failed_req++;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]2775
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2776 if (!(s->flags & SF_FINST_MASK))
2777 s->flags |= SF_FINST_R;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2778 return 0;
2779 }
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]2780
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2781 /* 4: have we encountered a close ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]2782 else if (req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2783 if (!(s->flags & SF_ERR_MASK))
2784 s->flags |= SF_ERR_CLICL;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]2785
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]2786 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]2787 goto failed_keep_alive;
2788
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]2789 if (sess->fe->options & PR_O_IGNORE_PRB)
2790 goto failed_keep_alive;
2791
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]2792 if (msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2793 http_capture_bad_message(&sess->fe->invalid_req, s, msg, msg->err_state, sess->fe);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2794 txn->status = 400;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2795 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2796 msg->msg_state = HTTP_MSG_ERROR;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2797 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_400));
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]2798 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2799 stream_inc_http_err_ctr(s);
2800 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2801 proxy_inc_fe_req_ctr(sess->fe);
2802 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]2803 if (sess->listener->counters)
2804 sess->listener->counters->failed_req++;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]2805
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2806 if (!(s->flags & SF_FINST_MASK))
2807 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]2808 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2809 }
2810
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]2811 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]2812 req->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]2813 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]2814#ifdef TCP_QUICKACK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2815 if (sess->listener->options & LI_O_NOQUICKACK && req->buf->i &&
2816 objt_conn(sess->origin) && conn_ctrl_ready(__objt_conn(sess->origin))) {
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]2817 /* We need more data, we have to re-enable quick-ack in case we
2818 * previously disabled it, otherwise we might cause the client
2819 * to delay next data.
2820 */
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2821 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]2822 }
2823#endif
Willy Tarreau1b194fe2009-03-21 21:10:04 +0100[diff] [blame]2824
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]2825 if ((msg->msg_state != HTTP_MSG_RQBEFORE) && (txn->flags & TX_WAIT_NEXT_RQ)) {
2826 /* If the client starts to talk, let's fall back to
2827 * request timeout processing.
2828 */
2829 txn->flags &= ~TX_WAIT_NEXT_RQ;
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]2830 req->analyse_exp = TICK_ETERNITY;
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]2831 }
2832
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2833 /* just set the request timeout once at the beginning of the request */
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]2834 if (!tick_isset(req->analyse_exp)) {
2835 if ((msg->msg_state == HTTP_MSG_RQBEFORE) &&
2836 (txn->flags & TX_WAIT_NEXT_RQ) &&
2837 tick_isset(s->be->timeout.httpka))
2838 req->analyse_exp = tick_add(now_ms, s->be->timeout.httpka);
2839 else
2840 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
2841 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2842
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2843 /* we're not ready yet */
2844 return 0;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]2845
2846 failed_keep_alive:
2847 /* Here we process low-level errors for keep-alive requests. In
2848 * short, if the request is not the first one and it experiences
2849 * a timeout, read error or shutdown, we just silently close so
2850 * that the client can try again.
2851 */
2852 txn->status = 0;
2853 msg->msg_state = HTTP_MSG_RQBEFORE;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]2854 req->analysers &= AN_REQ_FLT_END;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]2855 s->logs.logwait = 0;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]2856 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]2857 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2858 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]2859 return 0;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2860 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2861
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2862 /* OK now we have a complete HTTP request with indexed headers. Let's
2863 * complete the request parsing by setting a few fields we will need
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2864 * 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]2865 * 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]2866 * points to the CRLF of the request line. msg->next points to the first
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]2867 * byte after the last LF. msg->sov points to the first byte of data.
2868 * msg->eol cannot be trusted because it may have been left uninitialized
2869 * (for instance in the absence of headers).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2870 */
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]2871
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2872 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2873 proxy_inc_fe_req_ctr(sess->fe); /* one more valid request for this FE */
Willy Tarreaud9b587f2010-02-26 10:05:55 +0100[diff] [blame]2874
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]2875 if (txn->flags & TX_WAIT_NEXT_RQ) {
2876 /* kill the pending keep-alive timeout */
2877 txn->flags &= ~TX_WAIT_NEXT_RQ;
2878 req->analyse_exp = TICK_ETERNITY;
2879 }
2880
2881
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2882 /* Maybe we found in invalid header name while we were configured not
2883 * to block on that, so we have to capture it now.
2884 */
2885 if (unlikely(msg->err_pos >= 0))
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2886 http_capture_bad_message(&sess->fe->invalid_req, s, msg, msg->err_state, sess->fe);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]2887
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2888 /*
2889 * 1: identify the method
2890 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2891 txn->meth = find_http_meth(req->buf->p, msg->sl.rq.m_l);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2892
2893 /* we can make use of server redirect on GET and HEAD */
2894 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2895 s->flags |= SF_REDIRECTABLE;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200[diff] [blame]2896
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2897 /*
2898 * 2: check if the URI matches the monitor_uri.
2899 * We have to do this for every request which gets in, because
2900 * the monitor-uri is defined by the frontend.
2901 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2902 if (unlikely((sess->fe->monitor_uri_len != 0) &&
2903 (sess->fe->monitor_uri_len == msg->sl.rq.u_l) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2904 !memcmp(req->buf->p + msg->sl.rq.u,
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2905 sess->fe->monitor_uri,
2906 sess->fe->monitor_uri_len))) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2907 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2908 * We have found the monitor URI
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]2909 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2910 struct acl_cond *cond;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]2911
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2912 s->flags |= SF_MONITOR;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2913 sess->fe->fe_counters.intercepted_req++;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]2914
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2915 /* Check if we want to fail this monitor request or not */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2916 list_for_each_entry(cond, &sess->fe->mon_fail_cond, list) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2917 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]2918
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2919 ret = acl_pass(ret);
2920 if (cond->pol == ACL_COND_UNLESS)
2921 ret = !ret;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]2922
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2923 if (ret) {
2924 /* we fail this request, let's return 503 service unavail */
2925 txn->status = 503;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2926 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_503));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2927 if (!(s->flags & SF_ERR_MASK))
2928 s->flags |= SF_ERR_LOCAL; /* we don't want a real error here */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2929 goto return_prx_cond;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]2930 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2931 }
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100[diff] [blame]2932
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2933 /* nothing to fail, let's reply normaly */
2934 txn->status = 200;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2935 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_200));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2936 if (!(s->flags & SF_ERR_MASK))
2937 s->flags |= SF_ERR_LOCAL; /* we don't want a real error here */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2938 goto return_prx_cond;
2939 }
2940
2941 /*
2942 * 3: Maybe we have to copy the original REQURI for the logs ?
2943 * Note: we cannot log anymore if the request has been
2944 * classified as invalid.
2945 */
2946 if (unlikely(s->logs.logwait & LW_REQ)) {
2947 /* we have a complete HTTP request that we must log */
2948 if ((txn->uri = pool_alloc2(pool2_requri)) != NULL) {
2949 int urilen = msg->sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2950
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2951 if (urilen >= REQURI_LEN)
2952 urilen = REQURI_LEN - 1;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2953 memcpy(txn->uri, req->buf->p, urilen);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2954 txn->uri[urilen] = 0;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2955
Willy Tarreaud79a3b22012-12-28 09:40:16 +0100[diff] [blame]2956 if (!(s->logs.logwait &= ~(LW_REQ|LW_INIT)))
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2957 s->do_log(s);
2958 } else {
2959 Alert("HTTP logging : out of memory.\n");
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]2960 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2961 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]2962
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]2963 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
2964 * exactly one digit "." one digit. This check may be disabled using
2965 * option accept-invalid-http-request.
2966 */
2967 if (!(sess->fe->options2 & PR_O2_REQBUG_OK)) {
2968 if (msg->sl.rq.v_l != 8) {
2969 msg->err_pos = msg->sl.rq.v;
2970 goto return_bad_req;
2971 }
2972
2973 if (req->buf->p[msg->sl.rq.v + 4] != '/' ||
2974 !isdigit((unsigned char)req->buf->p[msg->sl.rq.v + 5]) ||
2975 req->buf->p[msg->sl.rq.v + 6] != '.' ||
2976 !isdigit((unsigned char)req->buf->p[msg->sl.rq.v + 7])) {
2977 msg->err_pos = msg->sl.rq.v + 4;
2978 goto return_bad_req;
2979 }
2980 }
Willy Tarreau13317662015-05-01 13:47:08 +0200[diff] [blame]2981 else {
2982 /* 4. We may have to convert HTTP/0.9 requests to HTTP/1.0 */
2983 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
2984 goto return_bad_req;
2985 }
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]2986
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2987 /* ... and check if the request is HTTP/1.1 or above */
2988 if ((msg->sl.rq.v_l == 8) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2989 ((req->buf->p[msg->sl.rq.v + 5] > '1') ||
2990 ((req->buf->p[msg->sl.rq.v + 5] == '1') &&
2991 (req->buf->p[msg->sl.rq.v + 7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2992 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]2993
2994 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]2995 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]2996
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2997 /* if the frontend has "option http-use-proxy-header", we'll check if
2998 * we have what looks like a proxied connection instead of a connection,
2999 * and in this case set the TX_USE_PX_CONN flag to use Proxy-connection.
3000 * Note that this is *not* RFC-compliant, however browsers and proxies
3001 * happen to do that despite being non-standard :-(
3002 * We consider that a request not beginning with either '/' or '*' is
3003 * a proxied connection, which covers both "scheme://location" and
3004 * CONNECT ip:port.
3005 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3006 if ((sess->fe->options2 & PR_O2_USE_PXHDR) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3007 req->buf->p[msg->sl.rq.u] != '/' && req->buf->p[msg->sl.rq.u] != '*')
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]3008 txn->flags |= TX_USE_PX_CONN;
3009
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]3010 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3011 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]3012
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3013 /* 5: we may need to capture headers */
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]3014 if (unlikely((s->logs.logwait & LW_REQHDR) && s->req_cap))
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3015 capture_headers(req->buf->p, &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]3016 s->req_cap, sess->fe->req_cap);
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]3017
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]3018 /* 6: determine the transfer-length according to RFC2616 #4.4, updated
3019 * by RFC7230#3.3.3 :
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]3020 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]3021 * The length of a message body is determined by one of the following
3022 * (in order of precedence):
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]3023 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]3024 * 1. Any response to a HEAD request and any response with a 1xx
3025 * (Informational), 204 (No Content), or 304 (Not Modified) status
3026 * code is always terminated by the first empty line after the
3027 * header fields, regardless of the header fields present in the
3028 * message, and thus cannot contain a message body.
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]3029 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]3030 * 2. Any 2xx (Successful) response to a CONNECT request implies that
3031 * the connection will become a tunnel immediately after the empty
3032 * line that concludes the header fields. A client MUST ignore any
3033 * Content-Length or Transfer-Encoding header fields received in
3034 * such a message.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]3035 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]3036 * 3. If a Transfer-Encoding header field is present and the chunked
3037 * transfer coding (Section 4.1) is the final encoding, the message
3038 * body length is determined by reading and decoding the chunked
3039 * data until the transfer coding indicates the data is complete.
3040 *
3041 * If a Transfer-Encoding header field is present in a response and
3042 * the chunked transfer coding is not the final encoding, the
3043 * message body length is determined by reading the connection until
3044 * it is closed by the server. If a Transfer-Encoding header field
3045 * is present in a request and the chunked transfer coding is not
3046 * the final encoding, the message body length cannot be determined
3047 * reliably; the server MUST respond with the 400 (Bad Request)
3048 * status code and then close the connection.
3049 *
3050 * If a message is received with both a Transfer-Encoding and a
3051 * Content-Length header field, the Transfer-Encoding overrides the
3052 * Content-Length. Such a message might indicate an attempt to
3053 * perform request smuggling (Section 9.5) or response splitting
3054 * (Section 9.4) and ought to be handled as an error. A sender MUST
3055 * remove the received Content-Length field prior to forwarding such
3056 * a message downstream.
3057 *
3058 * 4. If a message is received without Transfer-Encoding and with
3059 * either multiple Content-Length header fields having differing
3060 * field-values or a single Content-Length header field having an
3061 * invalid value, then the message framing is invalid and the
3062 * recipient MUST treat it as an unrecoverable error. If this is a
3063 * request message, the server MUST respond with a 400 (Bad Request)
3064 * status code and then close the connection. If this is a response
3065 * message received by a proxy, the proxy MUST close the connection
3066 * to the server, discard the received response, and send a 502 (Bad
3067 * Gateway) response to the client. If this is a response message
3068 * received by a user agent, the user agent MUST close the
3069 * connection to the server and discard the received response.
3070 *
3071 * 5. If a valid Content-Length header field is present without
3072 * Transfer-Encoding, its decimal value defines the expected message
3073 * body length in octets. If the sender closes the connection or
3074 * the recipient times out before the indicated number of octets are
3075 * received, the recipient MUST consider the message to be
3076 * incomplete and close the connection.
3077 *
3078 * 6. If this is a request message and none of the above are true, then
3079 * the message body length is zero (no message body is present).
3080 *
3081 * 7. Otherwise, this is a response message without a declared message
3082 * body length, so the message body length is determined by the
3083 * number of octets received prior to the server closing the
3084 * connection.
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]3085 */
3086
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]3087 ctx.idx = 0;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]3088 /* set TE_CHNK and XFER_LEN only if "chunked" is seen last */
Willy Tarreau4979d5c2015-05-01 10:06:30 +0200[diff] [blame]3089 while (http_find_header2("Transfer-Encoding", 17, req->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]3090 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3091 msg->flags |= (HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
3092 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]3093 /* chunked not last, return badreq */
3094 goto return_bad_req;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]3095 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]3096 }
3097
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]3098 /* Chunked requests must have their content-length removed */
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]3099 ctx.idx = 0;
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]3100 if (msg->flags & HTTP_MSGF_TE_CHNK) {
3101 while (http_find_header2("Content-Length", 14, req->buf->p, &txn->hdr_idx, &ctx))
3102 http_remove_header2(msg, &txn->hdr_idx, &ctx);
3103 }
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]3104 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]3105 signed long long cl;
3106
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]3107 if (!ctx.vlen) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3108 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]3109 goto return_bad_req;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]3110 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]3111
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]3112 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3113 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]3114 goto return_bad_req; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]3115 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]3116
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]3117 if (cl < 0) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3118 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]3119 goto return_bad_req;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]3120 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]3121
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3122 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3123 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]3124 goto return_bad_req; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]3125 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]3126
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3127 msg->flags |= HTTP_MSGF_CNT_LEN | HTTP_MSGF_XFER_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]3128 msg->body_len = msg->chunk_len = cl;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]3129 }
3130
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]3131 /* even bodyless requests have a known length */
3132 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]3133
Willy Tarreau179085c2014-04-28 16:48:56 +0200[diff] [blame]3134 /* Until set to anything else, the connection mode is set as Keep-Alive. It will
3135 * only change if both the request and the config reference something else.
3136 * Option httpclose by itself sets tunnel mode where headers are mangled.
3137 * However, if another mode is set, it will affect it (eg: server-close/
3138 * keep-alive + httpclose = close). Note that we avoid to redo the same work
3139 * if FE and BE have the same settings (common). The method consists in
3140 * checking if options changed between the two calls (implying that either
3141 * one is non-null, or one of them is non-null and we are there for the first
3142 * time.
3143 */
3144 if (!(txn->flags & TX_HDR_CONN_PRS) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3145 ((sess->fe->options & PR_O_HTTP_MODE) != (s->be->options & PR_O_HTTP_MODE)))
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]3146 http_adjust_conn_mode(s, txn, msg);
Willy Tarreau179085c2014-04-28 16:48:56 +0200[diff] [blame]3147
Willy Tarreau9fbe18e2015-05-01 22:42:08 +0200[diff] [blame]3148 /* we may have to wait for the request's body */
3149 if ((s->be->options & PR_O_WREQ_BODY) &&
3150 (msg->body_len || (msg->flags & HTTP_MSGF_TE_CHNK)))
3151 req->analysers |= AN_REQ_HTTP_BODY;
3152
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3153 /* end of job, return OK */
Willy Tarreau3a816292009-07-07 10:55:49 +0200[diff] [blame]3154 req->analysers &= ~an_bit;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3155 req->analyse_exp = TICK_ETERNITY;
3156 return 1;
3157
3158 return_bad_req:
3159 /* We centralize bad requests processing here */
3160 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
3161 /* we detected a parsing error. We want to archive this request
3162 * in the dedicated proxy area for later troubleshooting.
3163 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3164 http_capture_bad_message(&sess->fe->invalid_req, s, msg, msg->err_state, sess->fe);
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3165 }
3166
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3167 txn->req.err_state = txn->req.msg_state;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3168 txn->req.msg_state = HTTP_MSG_ERROR;
3169 txn->status = 400;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]3170 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]3171
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3172 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3173 if (sess->listener->counters)
3174 sess->listener->counters->failed_req++;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3175
3176 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3177 if (!(s->flags & SF_ERR_MASK))
3178 s->flags |= SF_ERR_PRXCOND;
3179 if (!(s->flags & SF_FINST_MASK))
3180 s->flags |= SF_FINST_R;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3181
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3182 req->analysers &= AN_REQ_FLT_END;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3183 req->analyse_exp = TICK_ETERNITY;
3184 return 0;
3185}
3186
Willy Tarreau4f8a83c2012-06-04 00:26:23 +0200[diff] [blame]3187
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3188/* This function prepares an applet to handle the stats. It can deal with the
3189 * "100-continue" expectation, check that admin rules are met for POST requests,
3190 * and program a response message if something was unexpected. It cannot fail
3191 * 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]3192 * analysers nor counters, which are left to the caller. It does not touch
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3193 * s->target which is supposed to already point to the stats applet. The caller
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3194 * is expected to have already assigned an appctx to the stream.
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3195 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3196int http_handle_stats(struct stream *s, struct channel *req)
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3197{
3198 struct stats_admin_rule *stats_admin_rule;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]3199 struct stream_interface *si = &s->si[1];
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3200 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3201 struct http_txn *txn = s->txn;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3202 struct http_msg *msg = &txn->req;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3203 struct uri_auth *uri_auth = s->be->uri_auth;
3204 const char *uri, *h, *lookup;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3205 struct appctx *appctx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3206
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3207 appctx = si_appctx(si);
3208 memset(&appctx->ctx.stats, 0, sizeof(appctx->ctx.stats));
3209 appctx->st1 = appctx->st2 = 0;
3210 appctx->ctx.stats.st_code = STAT_STATUS_INIT;
3211 appctx->ctx.stats.flags |= STAT_FMT_HTML; /* assume HTML mode by default */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3212 if ((msg->flags & HTTP_MSGF_VER_11) && (s->txn->meth != HTTP_METH_HEAD))
Willy Tarreauaf3cf702014-04-22 22:19:53 +0200[diff] [blame]3213 appctx->ctx.stats.flags |= STAT_CHUNKED;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3214
3215 uri = msg->chn->buf->p + msg->sl.rq.u;
3216 lookup = uri + uri_auth->uri_len;
3217
3218 for (h = lookup; h <= uri + msg->sl.rq.u_l - 3; h++) {
3219 if (memcmp(h, ";up", 3) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3220 appctx->ctx.stats.flags |= STAT_HIDE_DOWN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3221 break;
3222 }
3223 }
3224
3225 if (uri_auth->refresh) {
3226 for (h = lookup; h <= uri + msg->sl.rq.u_l - 10; h++) {
3227 if (memcmp(h, ";norefresh", 10) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3228 appctx->ctx.stats.flags |= STAT_NO_REFRESH;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3229 break;
3230 }
3231 }
3232 }
3233
3234 for (h = lookup; h <= uri + msg->sl.rq.u_l - 4; h++) {
3235 if (memcmp(h, ";csv", 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3236 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3237 break;
3238 }
3239 }
3240
Willy Tarreau1e62df92016-01-11 18:57:53 +0100[diff] [blame]3241 for (h = lookup; h <= uri + msg->sl.rq.u_l - 6; h++) {
3242 if (memcmp(h, ";typed", 6) == 0) {
3243 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
3244 appctx->ctx.stats.flags |= STAT_FMT_TYPED;
3245 break;
3246 }
3247 }
3248
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3249 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
3250 if (memcmp(h, ";st=", 4) == 0) {
3251 int i;
3252 h += 4;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3253 appctx->ctx.stats.st_code = STAT_STATUS_UNKN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3254 for (i = STAT_STATUS_INIT + 1; i < STAT_STATUS_SIZE; i++) {
3255 if (strncmp(stat_status_codes[i], h, 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3256 appctx->ctx.stats.st_code = i;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3257 break;
3258 }
3259 }
3260 break;
3261 }
3262 }
3263
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3264 appctx->ctx.stats.scope_str = 0;
3265 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3266 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
3267 if (memcmp(h, STAT_SCOPE_INPUT_NAME "=", strlen(STAT_SCOPE_INPUT_NAME) + 1) == 0) {
3268 int itx = 0;
3269 const char *h2;
3270 char scope_txt[STAT_SCOPE_TXT_MAXLEN + 1];
3271 const char *err;
3272
3273 h += strlen(STAT_SCOPE_INPUT_NAME) + 1;
3274 h2 = h;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3275 appctx->ctx.stats.scope_str = h2 - msg->chn->buf->p;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3276 while (*h != ';' && *h != '\0' && *h != '&' && *h != ' ' && *h != '\n') {
3277 itx++;
3278 h++;
3279 }
3280
3281 if (itx > STAT_SCOPE_TXT_MAXLEN)
3282 itx = STAT_SCOPE_TXT_MAXLEN;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3283 appctx->ctx.stats.scope_len = itx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3284
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3285 /* 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]3286 memcpy(scope_txt, h2, itx);
3287 scope_txt[itx] = '\0';
3288 err = invalid_char(scope_txt);
3289 if (err) {
3290 /* bad char in search text => clear scope */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3291 appctx->ctx.stats.scope_str = 0;
3292 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3293 }
3294 break;
3295 }
3296 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3297
3298 /* now check whether we have some admin rules for this request */
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3299 list_for_each_entry(stats_admin_rule, &uri_auth->admin_rules, list) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3300 int ret = 1;
3301
3302 if (stats_admin_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3303 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]3304 ret = acl_pass(ret);
3305 if (stats_admin_rule->cond->pol == ACL_COND_UNLESS)
3306 ret = !ret;
3307 }
3308
3309 if (ret) {
3310 /* no rule, or the rule matches */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3311 appctx->ctx.stats.flags |= STAT_ADMIN;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3312 break;
3313 }
3314 }
3315
3316 /* Was the status page requested with a POST ? */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]3317 if (unlikely(txn->meth == HTTP_METH_POST && txn->req.body_len > 0)) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3318 if (appctx->ctx.stats.flags & STAT_ADMIN) {
Willy Tarreaucfe7fdd2014-04-26 22:08:32 +0200[diff] [blame]3319 /* we'll need the request body, possibly after sending 100-continue */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]3320 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE)
3321 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3322 appctx->st0 = STAT_HTTP_POST;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3323 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3324 else {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3325 appctx->ctx.stats.st_code = STAT_STATUS_DENY;
3326 appctx->st0 = STAT_HTTP_LAST;
de Lafond Guillaume88c278f2013-04-15 19:27:10 +0200[diff] [blame]3327 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3328 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3329 else {
3330 /* So it was another method (GET/HEAD) */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3331 appctx->st0 = STAT_HTTP_HEAD;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3332 }
3333
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3334 s->task->nice = -32; /* small boost for HTTP statistics */
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3335 return 1;
3336}
3337
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]3338/* Sets the TOS header in IPv4 and the traffic class header in IPv6 packets
3339 * (as per RFC3260 #4 and BCP37 #4.2 and #5.2).
3340 */
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]3341void inet_set_tos(int fd, const struct sockaddr_storage *from, int tos)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]3342{
3343#ifdef IP_TOS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]3344 if (from->ss_family == AF_INET)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]3345 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
3346#endif
3347#ifdef IPV6_TCLASS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]3348 if (from->ss_family == AF_INET6) {
3349 if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)from)->sin6_addr))
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]3350 /* v4-mapped addresses need IP_TOS */
3351 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
3352 else
3353 setsockopt(fd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof(tos));
3354 }
3355#endif
3356}
3357
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3358int http_transform_header_str(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]3359 const char* name, unsigned int name_len,
3360 const char *str, struct my_regex *re,
3361 int action)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3362{
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3363 struct hdr_ctx ctx;
3364 char *buf = msg->chn->buf->p;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3365 struct hdr_idx *idx = &s->txn->hdr_idx;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]3366 int (*http_find_hdr_func)(const char *name, int len, char *sol,
3367 struct hdr_idx *idx, struct hdr_ctx *ctx);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3368 struct chunk *output = get_trash_chunk();
3369
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3370 ctx.idx = 0;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3371
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3372 /* Choose the header browsing function. */
3373 switch (action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3374 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3375 http_find_hdr_func = http_find_header2;
3376 break;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3377 case ACT_HTTP_REPLACE_HDR:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3378 http_find_hdr_func = http_find_full_header2;
3379 break;
3380 default: /* impossible */
3381 return -1;
3382 }
3383
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3384 while (http_find_hdr_func(name, name_len, buf, idx, &ctx)) {
3385 struct hdr_idx_elem *hdr = idx->v + ctx.idx;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3386 int delta;
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3387 char *val = ctx.line + ctx.val;
3388 char* val_end = val + ctx.vlen;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3389
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3390 if (!regex_exec_match2(re, val, val_end-val, MAX_MATCH, pmatch, 0))
3391 continue;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3392
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]3393 output->len = exp_replace(output->str, output->size, val, str, pmatch);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3394 if (output->len == -1)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3395 return -1;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3396
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3397 delta = buffer_replace2(msg->chn->buf, val, val_end, output->str, output->len);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3398
3399 hdr->len += delta;
3400 http_msg_move_end(msg, delta);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]3401
3402 /* Adjust the length of the current value of the index. */
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3403 ctx.vlen += delta;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3404 }
3405
3406 return 0;
3407}
3408
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3409static int http_transform_header(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]3410 const char* name, unsigned int name_len,
3411 struct list *fmt, struct my_regex *re,
3412 int action)
3413{
3414 struct chunk *replace = get_trash_chunk();
3415
3416 replace->len = build_logline(s, replace->str, replace->size, fmt);
3417 if (replace->len >= replace->size - 1)
3418 return -1;
3419
3420 return http_transform_header_str(s, msg, name, name_len, replace->str, re, action);
3421}
3422
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3423/* Executes the http-request rules <rules> for stream <s>, proxy <px> and
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3424 * transaction <txn>. Returns the verdict of the first rule that prevents
3425 * further processing of the request (auth, deny, ...), and defaults to
3426 * HTTP_RULE_RES_STOP if it executed all rules or stopped on an allow, or
3427 * HTTP_RULE_RES_CONT if the last rule was reached. It may set the TX_CLTARPIT
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3428 * on txn->flags if it encounters a tarpit rule. If <deny_status> is not NULL
3429 * and a deny/tarpit rule is matched, it will be filled with this rule's deny
3430 * status.
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3431 */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3432enum rule_result
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3433http_req_get_intercept_rule(struct proxy *px, struct list *rules, struct stream *s, int *deny_status)
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3434{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3435 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]3436 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3437 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]3438 struct act_rule *rule;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]3439 struct hdr_ctx ctx;
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]3440 const char *auth_realm;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3441 int act_flags = 0;
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]3442 int len;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3443
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3444 /* If "the current_rule_list" match the executed rule list, we are in
3445 * resume condition. If a resume is needed it is always in the action
3446 * and never in the ACL or converters. In this case, we initialise the
3447 * current rule, and go to the action execution point.
3448 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3449 if (s->current_rule) {
3450 rule = s->current_rule;
3451 s->current_rule = NULL;
3452 if (s->current_rule_list == rules)
3453 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3454 }
3455 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3456
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]3457 list_for_each_entry(rule, rules, list) {
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3458
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3459 /* check optional condition */
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]3460 if (rule->cond) {
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3461 int ret;
3462
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3463 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]3464 ret = acl_pass(ret);
3465
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]3466 if (rule->cond->pol == ACL_COND_UNLESS)
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3467 ret = !ret;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3468
3469 if (!ret) /* condition not matched */
3470 continue;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3471 }
3472
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3473 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3474resume_execution:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3475 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3476 case ACT_ACTION_ALLOW:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3477 return HTTP_RULE_RES_STOP;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3478
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3479 case ACT_ACTION_DENY:
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3480 if (deny_status)
3481 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3482 return HTTP_RULE_RES_DENY;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3483
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3484 case ACT_HTTP_REQ_TARPIT:
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]3485 txn->flags |= TX_CLTARPIT;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3486 if (deny_status)
3487 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3488 return HTTP_RULE_RES_DENY;
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]3489
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3490 case ACT_HTTP_REQ_AUTH:
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]3491 /* Auth might be performed on regular http-req rules as well as on stats */
3492 auth_realm = rule->arg.auth.realm;
3493 if (!auth_realm) {
3494 if (px->uri_auth && rules == &px->uri_auth->http_req_rules)
3495 auth_realm = STATS_DEFAULT_REALM;
3496 else
3497 auth_realm = px->id;
3498 }
3499 /* send 401/407 depending on whether we use a proxy or not. We still
3500 * count one error, because normal browsing won't significantly
3501 * increase the counter but brute force attempts will.
3502 */
3503 chunk_printf(&trash, (txn->flags & TX_USE_PX_CONN) ? HTTP_407_fmt : HTTP_401_fmt, auth_realm);
3504 txn->status = (txn->flags & TX_USE_PX_CONN) ? 407 : 401;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]3505 http_reply_and_close(s, txn->status, &trash);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3506 stream_inc_http_err_ctr(s);
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3507 return HTTP_RULE_RES_ABRT;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3508
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3509 case ACT_HTTP_REDIR:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3510 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
3511 return HTTP_RULE_RES_BADREQ;
3512 return HTTP_RULE_RES_DONE;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]3513
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3514 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]3515 s->task->nice = rule->arg.nice;
3516 break;
3517
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3518 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3519 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]3520 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]3521 break;
3522
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3523 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]3524#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3525 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3526 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]3527#endif
3528 break;
3529
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3530 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]3531 s->logs.level = rule->arg.loglevel;
3532 break;
3533
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3534 case ACT_HTTP_REPLACE_HDR:
3535 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3536 if (http_transform_header(s, &txn->req, rule->arg.hdr_add.name,
3537 rule->arg.hdr_add.name_len,
3538 &rule->arg.hdr_add.fmt,
3539 &rule->arg.hdr_add.re, rule->action))
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3540 return HTTP_RULE_RES_BADREQ;
3541 break;
3542
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3543 case ACT_HTTP_DEL_HDR:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3544 ctx.idx = 0;
3545 /* remove all occurrences of the header */
3546 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
3547 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
3548 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]3549 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]3550 break;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3551
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3552 case ACT_HTTP_SET_HDR:
3553 case ACT_HTTP_ADD_HDR:
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]3554 /* The scope of the trash buffer must be limited to this function. The
3555 * build_logline() function can execute a lot of other function which
3556 * can use the trash buffer. So for limiting the scope of this global
3557 * buffer, we build first the header value using build_logline, and
3558 * after we store the header name.
3559 */
3560 len = rule->arg.hdr_add.name_len + 2,
3561 len += build_logline(s, trash.str + len, trash.size - len, &rule->arg.hdr_add.fmt);
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3562 memcpy(trash.str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]3563 trash.str[rule->arg.hdr_add.name_len] = ':';
3564 trash.str[rule->arg.hdr_add.name_len + 1] = ' ';
3565 trash.len = len;
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]3566
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3567 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]3568 /* remove all occurrences of the header */
3569 ctx.idx = 0;
3570 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
3571 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
3572 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
3573 }
3574 }
3575
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3576 http_header_add_tail2(&txn->req, &txn->hdr_idx, trash.str, trash.len);
3577 break;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3578
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3579 case ACT_HTTP_DEL_ACL:
3580 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3581 struct pat_ref *ref;
3582 char *key;
3583 int len;
3584
3585 /* collect reference */
3586 ref = pat_ref_lookup(rule->arg.map.ref);
3587 if (!ref)
3588 continue;
3589
3590 /* collect key */
3591 len = build_logline(s, trash.str, trash.size, &rule->arg.map.key);
3592 key = trash.str;
3593 key[len] = '\0';
3594
3595 /* perform update */
3596 /* returned code: 1=ok, 0=ko */
3597 pat_ref_delete(ref, key);
3598
3599 break;
3600 }
3601
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3602 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3603 struct pat_ref *ref;
3604 char *key;
3605 struct chunk *trash_key;
3606 int len;
3607
3608 trash_key = get_trash_chunk();
3609
3610 /* collect reference */
3611 ref = pat_ref_lookup(rule->arg.map.ref);
3612 if (!ref)
3613 continue;
3614
3615 /* collect key */
3616 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
3617 key = trash_key->str;
3618 key[len] = '\0';
3619
3620 /* perform update */
3621 /* add entry only if it does not already exist */
3622 if (pat_ref_find_elt(ref, key) == NULL)
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]3623 pat_ref_add(ref, key, NULL, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3624
3625 break;
3626 }
3627
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3628 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3629 struct pat_ref *ref;
3630 char *key, *value;
3631 struct chunk *trash_key, *trash_value;
3632 int len;
3633
3634 trash_key = get_trash_chunk();
3635 trash_value = get_trash_chunk();
3636
3637 /* collect reference */
3638 ref = pat_ref_lookup(rule->arg.map.ref);
3639 if (!ref)
3640 continue;
3641
3642 /* collect key */
3643 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
3644 key = trash_key->str;
3645 key[len] = '\0';
3646
3647 /* collect value */
3648 len = build_logline(s, trash_value->str, trash_value->size, &rule->arg.map.value);
3649 value = trash_value->str;
3650 value[len] = '\0';
3651
3652 /* perform update */
3653 if (pat_ref_find_elt(ref, key) != NULL)
3654 /* update entry if it exists */
3655 pat_ref_set(ref, key, value, NULL);
3656 else
3657 /* insert a new entry */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]3658 pat_ref_add(ref, key, value, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3659
3660 break;
3661 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3662
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3663 case ACT_CUSTOM:
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3664 if ((px->options & PR_O_ABRT_CLOSE) && (s->req.flags & (CF_SHUTR|CF_READ_NULL|CF_READ_ERROR)))
3665 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]3666
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3667 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3668 case ACT_RET_ERR:
3669 case ACT_RET_CONT:
3670 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3671 case ACT_RET_STOP:
3672 return HTTP_RULE_RES_DONE;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3673 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3674 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3675 return HTTP_RULE_RES_YIELD;
3676 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3677 break;
3678
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3679 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]3680 /* Note: only the first valid tracking parameter of each
3681 * applies.
3682 */
3683
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3684 if (stkctr_entry(&s->stkctr[http_trk_idx(rule->action)]) == NULL) {
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]3685 struct stktable *t;
3686 struct stksess *ts;
3687 struct stktable_key *key;
3688 void *ptr;
3689
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]3690 t = rule->arg.trk_ctr.table.t;
3691 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]3692
3693 if (key && (ts = stktable_get_entry(t, key))) {
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3694 stream_track_stkctr(&s->stkctr[http_trk_idx(rule->action)], t, ts);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]3695
3696 /* let's count a new HTTP request as it's the first time we do it */
3697 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
3698 if (ptr)
3699 stktable_data_cast(ptr, http_req_cnt)++;
3700
3701 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
3702 if (ptr)
3703 update_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
3704 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
3705
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3706 stkctr_set_flags(&s->stkctr[http_trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3707 if (sess->fe != s->be)
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3708 stkctr_set_flags(&s->stkctr[http_trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]3709 }
3710 }
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]3711 break;
3712
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]3713 /* other flags exists, but normaly, they never be matched. */
3714 default:
3715 break;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3716 }
3717 }
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]3718
3719 /* we reached the end of the rules, nothing to report */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3720 return HTTP_RULE_RES_CONT;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3721}
3722
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3723
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3724/* Executes the http-response rules <rules> for stream <s> and proxy <px>. It
3725 * returns one of 5 possible statuses: HTTP_RULE_RES_CONT, HTTP_RULE_RES_STOP,
3726 * HTTP_RULE_RES_DONE, HTTP_RULE_RES_YIELD, or HTTP_RULE_RES_BADREQ. If *CONT
3727 * is returned, the process can continue the evaluation of next rule list. If
3728 * *STOP or *DONE is returned, the process must stop the evaluation. If *BADREQ
3729 * is returned, it means the operation could not be processed and a server error
3730 * must be returned. It may set the TX_SVDENY on txn->flags if it encounters a
3731 * deny rule. If *YIELD is returned, the caller must call again the function
3732 * with the same context.
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3733 */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3734static enum rule_result
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]3735http_res_get_intercept_rule(struct proxy *px, struct list *rules, struct stream *s)
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3736{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3737 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]3738 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3739 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]3740 struct act_rule *rule;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3741 struct hdr_ctx ctx;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3742 int act_flags = 0;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3743
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3744 /* If "the current_rule_list" match the executed rule list, we are in
3745 * resume condition. If a resume is needed it is always in the action
3746 * and never in the ACL or converters. In this case, we initialise the
3747 * current rule, and go to the action execution point.
3748 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3749 if (s->current_rule) {
3750 rule = s->current_rule;
3751 s->current_rule = NULL;
3752 if (s->current_rule_list == rules)
3753 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3754 }
3755 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3756
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3757 list_for_each_entry(rule, rules, list) {
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3758
3759 /* check optional condition */
3760 if (rule->cond) {
3761 int ret;
3762
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3763 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]3764 ret = acl_pass(ret);
3765
3766 if (rule->cond->pol == ACL_COND_UNLESS)
3767 ret = !ret;
3768
3769 if (!ret) /* condition not matched */
3770 continue;
3771 }
3772
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3773 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3774resume_execution:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3775 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3776 case ACT_ACTION_ALLOW:
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3777 return HTTP_RULE_RES_STOP; /* "allow" rules are OK */
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3778
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3779 case ACT_ACTION_DENY:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3780 txn->flags |= TX_SVDENY;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3781 return HTTP_RULE_RES_STOP;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3782
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3783 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]3784 s->task->nice = rule->arg.nice;
3785 break;
3786
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3787 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3788 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]3789 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]3790 break;
3791
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3792 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]3793#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]3794 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3795 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]3796#endif
3797 break;
3798
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3799 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]3800 s->logs.level = rule->arg.loglevel;
3801 break;
3802
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3803 case ACT_HTTP_REPLACE_HDR:
3804 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]3805 if (http_transform_header(s, &txn->rsp, rule->arg.hdr_add.name,
3806 rule->arg.hdr_add.name_len,
3807 &rule->arg.hdr_add.fmt,
3808 &rule->arg.hdr_add.re, rule->action))
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3809 return HTTP_RULE_RES_STOP; /* note: we should report an error here */
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]3810 break;
3811
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3812 case ACT_HTTP_DEL_HDR:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3813 ctx.idx = 0;
3814 /* remove all occurrences of the header */
3815 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
3816 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
3817 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
3818 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]3819 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3820
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3821 case ACT_HTTP_SET_HDR:
3822 case ACT_HTTP_ADD_HDR:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3823 chunk_printf(&trash, "%s: ", rule->arg.hdr_add.name);
3824 memcpy(trash.str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
3825 trash.len = rule->arg.hdr_add.name_len;
3826 trash.str[trash.len++] = ':';
3827 trash.str[trash.len++] = ' ';
3828 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]3829
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3830 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]3831 /* remove all occurrences of the header */
3832 ctx.idx = 0;
3833 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
3834 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
3835 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
3836 }
3837 }
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3838 http_header_add_tail2(&txn->rsp, &txn->hdr_idx, trash.str, trash.len);
3839 break;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3840
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3841 case ACT_HTTP_DEL_ACL:
3842 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3843 struct pat_ref *ref;
3844 char *key;
3845 int len;
3846
3847 /* collect reference */
3848 ref = pat_ref_lookup(rule->arg.map.ref);
3849 if (!ref)
3850 continue;
3851
3852 /* collect key */
3853 len = build_logline(s, trash.str, trash.size, &rule->arg.map.key);
3854 key = trash.str;
3855 key[len] = '\0';
3856
3857 /* perform update */
3858 /* returned code: 1=ok, 0=ko */
3859 pat_ref_delete(ref, key);
3860
3861 break;
3862 }
3863
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3864 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3865 struct pat_ref *ref;
3866 char *key;
3867 struct chunk *trash_key;
3868 int len;
3869
3870 trash_key = get_trash_chunk();
3871
3872 /* collect reference */
3873 ref = pat_ref_lookup(rule->arg.map.ref);
3874 if (!ref)
3875 continue;
3876
3877 /* collect key */
3878 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
3879 key = trash_key->str;
3880 key[len] = '\0';
3881
3882 /* perform update */
3883 /* check if the entry already exists */
3884 if (pat_ref_find_elt(ref, key) == NULL)
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]3885 pat_ref_add(ref, key, NULL, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3886
3887 break;
3888 }
3889
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3890 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3891 struct pat_ref *ref;
3892 char *key, *value;
3893 struct chunk *trash_key, *trash_value;
3894 int len;
3895
3896 trash_key = get_trash_chunk();
3897 trash_value = get_trash_chunk();
3898
3899 /* collect reference */
3900 ref = pat_ref_lookup(rule->arg.map.ref);
3901 if (!ref)
3902 continue;
3903
3904 /* collect key */
3905 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
3906 key = trash_key->str;
3907 key[len] = '\0';
3908
3909 /* collect value */
3910 len = build_logline(s, trash_value->str, trash_value->size, &rule->arg.map.value);
3911 value = trash_value->str;
3912 value[len] = '\0';
3913
3914 /* perform update */
3915 if (pat_ref_find_elt(ref, key) != NULL)
3916 /* update entry if it exists */
3917 pat_ref_set(ref, key, value, NULL);
3918 else
3919 /* insert a new entry */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]3920 pat_ref_add(ref, key, value, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]3921
3922 break;
3923 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3924
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]3925 case ACT_HTTP_REDIR:
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3926 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
3927 return HTTP_RULE_RES_BADREQ;
3928 return HTTP_RULE_RES_DONE;
3929
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3930 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
3931 /* Note: only the first valid tracking parameter of each
3932 * applies.
3933 */
3934
3935 if (stkctr_entry(&s->stkctr[http_trk_idx(rule->action)]) == NULL) {
3936 struct stktable *t;
3937 struct stksess *ts;
3938 struct stktable_key *key;
3939 void *ptr;
3940
3941 t = rule->arg.trk_ctr.table.t;
3942 key = stktable_fetch_key(t, s->be, sess, s, SMP_OPT_DIR_RES | SMP_OPT_FINAL, rule->arg.trk_ctr.expr, NULL);
3943
3944 if (key && (ts = stktable_get_entry(t, key))) {
3945 stream_track_stkctr(&s->stkctr[http_trk_idx(rule->action)], t, ts);
3946
3947 /* let's count a new HTTP request as it's the first time we do it */
3948 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
3949 if (ptr)
3950 stktable_data_cast(ptr, http_req_cnt)++;
3951
3952 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
3953 if (ptr)
3954 update_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
3955 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
3956
3957 stkctr_set_flags(&s->stkctr[http_trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
3958 if (sess->fe != s->be)
3959 stkctr_set_flags(&s->stkctr[http_trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
3960
3961 /* When the client triggers a 4xx from the server, it's most often due
3962 * to a missing object or permission. These events should be tracked
3963 * because if they happen often, it may indicate a brute force or a
3964 * vulnerability scan. Normally this is done when receiving the response
3965 * but here we're tracking after this ought to have been done so we have
3966 * to do it on purpose.
3967 */
Willy Tarreau3146a4c2016-07-26 15:22:33 +0200[diff] [blame]3968 if ((unsigned)(txn->status - 400) < 100) {
3969 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_ERR_CNT);
3970 if (ptr)
3971 stktable_data_cast(ptr, http_err_cnt)++;
3972
3973 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_ERR_RATE);
3974 if (ptr)
3975 update_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
3976 t->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u, 1);
3977 }
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]3978 }
3979 }
3980 break;
3981
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3982 case ACT_CUSTOM:
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3983 if ((px->options & PR_O_ABRT_CLOSE) && (s->req.flags & (CF_SHUTR|CF_READ_NULL|CF_READ_ERROR)))
3984 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]3985
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]3986 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3987 case ACT_RET_ERR:
3988 case ACT_RET_CONT:
3989 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]3990 case ACT_RET_STOP:
3991 return HTTP_RULE_RES_STOP;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]3992 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]3993 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3994 return HTTP_RULE_RES_YIELD;
3995 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3996 break;
3997
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]3998 /* other flags exists, but normaly, they never be matched. */
3999 default:
4000 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]4001 }
4002 }
4003
4004 /* we reached the end of the rules, nothing to report */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]4005 return HTTP_RULE_RES_CONT;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]4006}
4007
4008
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4009/* Perform an HTTP redirect based on the information in <rule>. The function
4010 * returns non-zero on success, or zero in case of a, irrecoverable error such
4011 * as too large a request to build a valid response.
4012 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4013static 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]4014{
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4015 struct http_msg *req = &txn->req;
4016 struct http_msg *res = &txn->rsp;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4017 const char *msg_fmt;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]4018 const char *location;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4019
4020 /* build redirect message */
4021 switch(rule->code) {
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]4022 case 308:
4023 msg_fmt = HTTP_308;
4024 break;
4025 case 307:
4026 msg_fmt = HTTP_307;
4027 break;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4028 case 303:
4029 msg_fmt = HTTP_303;
4030 break;
4031 case 301:
4032 msg_fmt = HTTP_301;
4033 break;
4034 case 302:
4035 default:
4036 msg_fmt = HTTP_302;
4037 break;
4038 }
4039
4040 if (unlikely(!chunk_strcpy(&trash, msg_fmt)))
4041 return 0;
4042
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]4043 location = trash.str + trash.len;
4044
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4045 switch(rule->type) {
4046 case REDIRECT_TYPE_SCHEME: {
4047 const char *path;
4048 const char *host;
4049 struct hdr_ctx ctx;
4050 int pathlen;
4051 int hostlen;
4052
4053 host = "";
4054 hostlen = 0;
4055 ctx.idx = 0;
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4056 if (http_find_header2("Host", 4, req->chn->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4057 host = ctx.line + ctx.val;
4058 hostlen = ctx.vlen;
4059 }
4060
4061 path = http_get_path(txn);
4062 /* build message using path */
4063 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4064 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]4065 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
4066 int qs = 0;
4067 while (qs < pathlen) {
4068 if (path[qs] == '?') {
4069 pathlen = qs;
4070 break;
4071 }
4072 qs++;
4073 }
4074 }
4075 } else {
4076 path = "/";
4077 pathlen = 1;
4078 }
4079
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]4080 if (rule->rdr_str) { /* this is an old "redirect" rule */
4081 /* check if we can add scheme + "://" + host + path */
4082 if (trash.len + rule->rdr_len + 3 + hostlen + pathlen > trash.size - 4)
4083 return 0;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4084
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]4085 /* add scheme */
4086 memcpy(trash.str + trash.len, rule->rdr_str, rule->rdr_len);
4087 trash.len += rule->rdr_len;
4088 }
4089 else {
4090 /* add scheme with executing log format */
4091 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]4092
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]4093 /* check if we can add scheme + "://" + host + path */
4094 if (trash.len + 3 + hostlen + pathlen > trash.size - 4)
4095 return 0;
4096 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4097 /* add "://" */
4098 memcpy(trash.str + trash.len, "://", 3);
4099 trash.len += 3;
4100
4101 /* add host */
4102 memcpy(trash.str + trash.len, host, hostlen);
4103 trash.len += hostlen;
4104
4105 /* add path */
4106 memcpy(trash.str + trash.len, path, pathlen);
4107 trash.len += pathlen;
4108
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]4109 /* append a slash at the end of the location if needed and missing */
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4110 if (trash.len && trash.str[trash.len - 1] != '/' &&
4111 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
4112 if (trash.len > trash.size - 5)
4113 return 0;
4114 trash.str[trash.len] = '/';
4115 trash.len++;
4116 }
4117
4118 break;
4119 }
4120 case REDIRECT_TYPE_PREFIX: {
4121 const char *path;
4122 int pathlen;
4123
4124 path = http_get_path(txn);
4125 /* build message using path */
4126 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4127 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]4128 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
4129 int qs = 0;
4130 while (qs < pathlen) {
4131 if (path[qs] == '?') {
4132 pathlen = qs;
4133 break;
4134 }
4135 qs++;
4136 }
4137 }
4138 } else {
4139 path = "/";
4140 pathlen = 1;
4141 }
4142
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]4143 if (rule->rdr_str) { /* this is an old "redirect" rule */
4144 if (trash.len + rule->rdr_len + pathlen > trash.size - 4)
4145 return 0;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4146
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]4147 /* add prefix. Note that if prefix == "/", we don't want to
4148 * add anything, otherwise it makes it hard for the user to
4149 * configure a self-redirection.
4150 */
4151 if (rule->rdr_len != 1 || *rule->rdr_str != '/') {
4152 memcpy(trash.str + trash.len, rule->rdr_str, rule->rdr_len);
4153 trash.len += rule->rdr_len;
4154 }
4155 }
4156 else {
4157 /* add prefix with executing log format */
4158 trash.len += build_logline(s, trash.str + trash.len, trash.size - trash.len, &rule->rdr_fmt);
4159
4160 /* Check length */
4161 if (trash.len + pathlen > trash.size - 4)
4162 return 0;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4163 }
4164
4165 /* add path */
4166 memcpy(trash.str + trash.len, path, pathlen);
4167 trash.len += pathlen;
4168
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]4169 /* append a slash at the end of the location if needed and missing */
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4170 if (trash.len && trash.str[trash.len - 1] != '/' &&
4171 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
4172 if (trash.len > trash.size - 5)
4173 return 0;
4174 trash.str[trash.len] = '/';
4175 trash.len++;
4176 }
4177
4178 break;
4179 }
4180 case REDIRECT_TYPE_LOCATION:
4181 default:
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]4182 if (rule->rdr_str) { /* this is an old "redirect" rule */
4183 if (trash.len + rule->rdr_len > trash.size - 4)
4184 return 0;
4185
4186 /* add location */
4187 memcpy(trash.str + trash.len, rule->rdr_str, rule->rdr_len);
4188 trash.len += rule->rdr_len;
4189 }
4190 else {
4191 /* add location with executing log format */
4192 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]4193
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]4194 /* Check left length */
4195 if (trash.len > trash.size - 4)
4196 return 0;
4197 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4198 break;
4199 }
4200
4201 if (rule->cookie_len) {
4202 memcpy(trash.str + trash.len, "\r\nSet-Cookie: ", 14);
4203 trash.len += 14;
4204 memcpy(trash.str + trash.len, rule->cookie_str, rule->cookie_len);
4205 trash.len += rule->cookie_len;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4206 }
4207
4208 /* add end of headers and the keep-alive/close status.
4209 * We may choose to set keep-alive if the Location begins
4210 * with a slash, because the client will come back to the
4211 * same server.
4212 */
4213 txn->status = rule->code;
4214 /* let's log the request time */
4215 s->logs.tv_request = now;
4216
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]4217 if (*location == '/' &&
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4218 (req->flags & HTTP_MSGF_XFER_LEN) &&
Willy Tarreau2de8a502015-05-28 17:23:54 +0200[diff] [blame]4219 ((!(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]4220 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
4221 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
4222 /* keep-alive possible */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4223 if (!(req->flags & HTTP_MSGF_VER_11)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4224 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
4225 memcpy(trash.str + trash.len, "\r\nProxy-Connection: keep-alive", 30);
4226 trash.len += 30;
4227 } else {
4228 memcpy(trash.str + trash.len, "\r\nConnection: keep-alive", 24);
4229 trash.len += 24;
4230 }
4231 }
4232 memcpy(trash.str + trash.len, "\r\n\r\n", 4);
4233 trash.len += 4;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]4234 FLT_STRM_CB(s, flt_http_reply(s, txn->status, &trash));
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4235 bo_inject(res->chn, trash.str, trash.len);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4236 /* "eat" the request */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4237 bi_fast_delete(req->chn->buf, req->sov);
4238 req->next -= req->sov;
4239 req->sov = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4240 s->req.analysers = AN_REQ_HTTP_XFER_BODY | (s->req.analysers & AN_REQ_FLT_END);
4241 s->res.analysers = AN_RES_HTTP_XFER_BODY | (s->req.analysers & AN_RES_FLT_END);
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]4242 req->msg_state = HTTP_MSG_CLOSED;
4243 res->msg_state = HTTP_MSG_DONE;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]4244 /* Trim any possible response */
4245 res->chn->buf->i = 0;
4246 res->next = res->sov = 0;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4247 } else {
4248 /* keep-alive not possible */
4249 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
4250 memcpy(trash.str + trash.len, "\r\nProxy-Connection: close\r\n\r\n", 29);
4251 trash.len += 29;
4252 } else {
4253 memcpy(trash.str + trash.len, "\r\nConnection: close\r\n\r\n", 23);
4254 trash.len += 23;
4255 }
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4256 http_reply_and_close(s, txn->status, &trash);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4257 req->chn->analysers &= AN_REQ_FLT_END;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4258 }
4259
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4260 if (!(s->flags & SF_ERR_MASK))
4261 s->flags |= SF_ERR_LOCAL;
4262 if (!(s->flags & SF_FINST_MASK))
4263 s->flags |= SF_FINST_R;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4264
4265 return 1;
4266}
4267
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4268/* This stream analyser runs all HTTP request processing which is common to
4269 * frontends and backends, which means blocking ACLs, filters, connection-close,
4270 * reqadd, stats and redirects. This is performed for the designated proxy.
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]4271 * 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]4272 * either needs more data or wants to immediately abort the request (eg: deny,
4273 * error, ...).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]4274 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4275int 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]4276{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4277 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4278 struct http_txn *txn = s->txn;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]4279 struct http_msg *msg = &txn->req;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4280 struct redirect_rule *rule;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100[diff] [blame]4281 struct cond_wordlist *wl;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4282 enum rule_result verdict;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]4283 int deny_status = HTTP_ERR_403;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]4284
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]4285 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]4286 /* we need more data */
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]4287 goto return_prx_yield;
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]4288 }
4289
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4290 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]4291 now_ms, __FUNCTION__,
4292 s,
4293 req,
4294 req->rex, req->wex,
4295 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4296 req->buf->i,
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]4297 req->analysers);
4298
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]4299 /* just in case we have some per-backend tracking */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4300 stream_inc_be_http_req_ctr(s);
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]4301
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]4302 /* evaluate http-request rules */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4303 if (!LIST_ISEMPTY(&px->http_req_rules)) {
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]4304 verdict = http_req_get_intercept_rule(px, &px->http_req_rules, s, &deny_status);
Willy Tarreau51425942010-02-01 10:40:19 +0100[diff] [blame]4305
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4306 switch (verdict) {
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]4307 case HTTP_RULE_RES_YIELD: /* some data miss, call the function later. */
4308 goto return_prx_yield;
4309
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4310 case HTTP_RULE_RES_CONT:
4311 case HTTP_RULE_RES_STOP: /* nothing to do */
4312 break;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4313
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4314 case HTTP_RULE_RES_DENY: /* deny or tarpit */
4315 if (txn->flags & TX_CLTARPIT)
4316 goto tarpit;
4317 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4318
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4319 case HTTP_RULE_RES_ABRT: /* abort request, response already sent. Eg: auth */
4320 goto return_prx_cond;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4321
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4322 case HTTP_RULE_RES_DONE: /* OK, but terminate request processing (eg: redirect) */
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4323 goto done;
4324
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4325 case HTTP_RULE_RES_BADREQ: /* failed with a bad request */
4326 goto return_bad_req;
4327 }
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4328 }
4329
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4330 /* OK at this stage, we know that the request was accepted according to
4331 * the http-request rules, we can check for the stats. Note that the
4332 * URI is detected *before* the req* rules in order not to be affected
4333 * by a possible reqrep, while they are processed *after* so that a
4334 * reqdeny can still block them. This clearly needs to change in 1.6!
4335 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4336 if (stats_check_uri(&s->si[1], txn, px)) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4337 s->target = &http_stats_applet.obj_type;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4338 if (unlikely(!stream_int_register_handler(&s->si[1], objt_applet(s->target)))) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4339 txn->status = 500;
4340 s->logs.tv_request = now;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4341 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_500));
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]4342
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4343 if (!(s->flags & SF_ERR_MASK))
4344 s->flags |= SF_ERR_RESOURCE;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4345 goto return_prx_cond;
4346 }
4347
4348 /* parse the whole stats request and extract the relevant information */
4349 http_handle_stats(s, req);
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]4350 verdict = http_req_get_intercept_rule(px, &px->uri_auth->http_req_rules, s, &deny_status);
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4351 /* not all actions implemented: deny, allow, auth */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4352
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4353 if (verdict == HTTP_RULE_RES_DENY) /* stats http-request deny */
4354 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4355
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4356 if (verdict == HTTP_RULE_RES_ABRT) /* stats auth / stats http-request auth */
4357 goto return_prx_cond;
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +0100[diff] [blame]4358 }
4359
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4360 /* evaluate the req* rules except reqadd */
4361 if (px->req_exp != NULL) {
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]4362 if (apply_filters_to_request(s, req, px) < 0)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4363 goto return_bad_req;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4364
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4365 if (txn->flags & TX_CLDENY)
4366 goto deny;
Willy Tarreauc465fd72009-08-31 00:17:18 +0200[diff] [blame]4367
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4368 if (txn->flags & TX_CLTARPIT)
4369 goto tarpit;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4370 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4371
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]4372 /* add request headers from the rule sets in the same order */
4373 list_for_each_entry(wl, &px->req_add, list) {
4374 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]4375 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]4376 ret = acl_pass(ret);
4377 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
4378 ret = !ret;
4379 if (!ret)
4380 continue;
4381 }
4382
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]4383 if (unlikely(http_header_add_tail(&txn->req, &txn->hdr_idx, wl->s) < 0))
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]4384 goto return_bad_req;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]4385 }
4386
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]4387
4388 /* Proceed with the stats now. */
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]4389 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]4390 /* process the stats request now */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4391 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
4392 sess->fe->fe_counters.intercepted_req++;
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]4393
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4394 if (!(s->flags & SF_ERR_MASK)) // this is not really an error but it is
4395 s->flags |= SF_ERR_LOCAL; // to mark that it comes from the proxy
4396 if (!(s->flags & SF_FINST_MASK))
4397 s->flags |= SF_FINST_R;
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]4398
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]4399 /* enable the minimally required analyzers to handle keep-alive and compression on the HTTP response */
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4400 req->analysers &= (AN_REQ_HTTP_BODY | AN_REQ_FLT_HTTP_HDRS | AN_REQ_FLT_END);
4401 req->analysers &= ~AN_REQ_FLT_XFER_DATA;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4402 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4403 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4404 }
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]4405
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4406 /* check whether we have some ACLs set to redirect this request */
4407 list_for_each_entry(rule, &px->redirect_rules, list) {
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]4408 if (rule->cond) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4409 int ret;
4410
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]4411 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]4412 ret = acl_pass(ret);
4413 if (rule->cond->pol == ACL_COND_UNLESS)
4414 ret = !ret;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4415 if (!ret)
4416 continue;
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]4417 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]4418 if (!http_apply_redirect_rule(rule, s, txn))
4419 goto return_bad_req;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4420 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4421 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]4422
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]4423 /* POST requests may be accompanied with an "Expect: 100-Continue" header.
4424 * If this happens, then the data will not come immediately, so we must
4425 * send all what we have without waiting. Note that due to the small gain
4426 * 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]4427 * 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]4428 * itself once used.
4429 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4430 req->flags |= CF_SEND_DONTWAIT;
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]4431
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4432 done: /* done with this analyser, continue with next ones that the calling
4433 * points will have set, if any.
4434 */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4435 req->analyse_exp = TICK_ETERNITY;
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]4436 done_without_exp: /* done with this analyser, but dont reset the analyse_exp. */
4437 req->analysers &= ~an_bit;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4438 return 1;
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]4439
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4440 tarpit:
4441 /* When a connection is tarpitted, we use the tarpit timeout,
4442 * which may be the same as the connect timeout if unspecified.
4443 * If unset, then set it to zero because we really want it to
4444 * eventually expire. We build the tarpit as an analyser.
4445 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4446 channel_erase(&s->req);
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4447
4448 /* wipe the request out so that we can drop the connection early
4449 * if the client closes first.
4450 */
4451 channel_dont_connect(req);
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]4452
4453 /* Allow cookie logging
4454 */
4455 if (s->be->cookie_name || sess->fe->capture_name)
4456 manage_client_side_cookies(s, req);
4457
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4458 req->analysers &= AN_REQ_FLT_END; /* remove switching rules etc... */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4459 req->analysers |= AN_REQ_HTTP_TARPIT;
4460 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.tarpit);
4461 if (!req->analyse_exp)
4462 req->analyse_exp = tick_add(now_ms, 0);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4463 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4464 sess->fe->fe_counters.denied_req++;
4465 if (sess->fe != s->be)
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4466 s->be->be_counters.denied_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4467 if (sess->listener->counters)
4468 sess->listener->counters->denied_req++;
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]4469 goto done_without_exp;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4470
4471 deny: /* this request was blocked (denied) */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]4472
4473 /* Allow cookie logging
4474 */
4475 if (s->be->cookie_name || sess->fe->capture_name)
4476 manage_client_side_cookies(s, req);
4477
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]4478 txn->flags |= TX_CLDENY;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]4479 txn->status = http_err_codes[deny_status];
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4480 s->logs.tv_request = now;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]4481 http_reply_and_close(s, txn->status, http_error_message(s, deny_status));
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4482 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4483 sess->fe->fe_counters.denied_req++;
4484 if (sess->fe != s->be)
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4485 s->be->be_counters.denied_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4486 if (sess->listener->counters)
4487 sess->listener->counters->denied_req++;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]4488 goto return_prx_cond;
4489
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4490 return_bad_req:
4491 /* We centralize bad requests processing here */
4492 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
4493 /* we detected a parsing error. We want to archive this request
4494 * in the dedicated proxy area for later troubleshooting.
4495 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4496 http_capture_bad_message(&sess->fe->invalid_req, s, msg, msg->err_state, sess->fe);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4497 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]4498
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4499 txn->req.err_state = txn->req.msg_state;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4500 txn->req.msg_state = HTTP_MSG_ERROR;
4501 txn->status = 400;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4502 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]4503
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4504 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4505 if (sess->listener->counters)
4506 sess->listener->counters->failed_req++;
Willy Tarreau6e4261e2007-09-18 18:36:05 +0200[diff] [blame]4507
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4508 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4509 if (!(s->flags & SF_ERR_MASK))
4510 s->flags |= SF_ERR_PRXCOND;
4511 if (!(s->flags & SF_FINST_MASK))
4512 s->flags |= SF_FINST_R;
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100[diff] [blame]4513
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4514 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4515 req->analyse_exp = TICK_ETERNITY;
4516 return 0;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]4517
4518 return_prx_yield:
4519 channel_dont_connect(req);
4520 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4521}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]4522
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4523/* This function performs all the processing enabled for the current request.
4524 * It returns 1 if the processing can continue on next analysers, or zero if it
4525 * needs more data, encounters an error, or wants to immediately abort the
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4526 * request. It relies on buffers flags, and updates s->req.analysers.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4527 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4528int http_process_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4529{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4530 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4531 struct http_txn *txn = s->txn;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4532 struct http_msg *msg = &txn->req;
Willy Tarreauee335e62015-04-21 18:15:13 +0200[diff] [blame]4533 struct connection *cli_conn = objt_conn(strm_sess(s)->origin);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]4534
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]4535 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]4536 /* we need more data */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4537 channel_dont_connect(req);
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]4538 return 0;
4539 }
4540
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4541 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]4542 now_ms, __FUNCTION__,
4543 s,
4544 req,
4545 req->rex, req->wex,
4546 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4547 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]4548 req->analysers);
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4549
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4550 /*
4551 * Right now, we know that we have processed the entire headers
4552 * and that unwanted requests have been filtered out. We can do
4553 * whatever we want with the remaining request. Also, now we
4554 * may have separate values for ->fe, ->be.
4555 */
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4556
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4557 /*
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4558 * If HTTP PROXY is set we simply get remote server address parsing
4559 * incoming request. Note that this requires that a connection is
4560 * allocated on the server side.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4561 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4562 if ((s->be->options & PR_O_HTTP_PROXY) && !(s->flags & SF_ADDR_SET)) {
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]4563 struct connection *conn;
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]4564 char *path;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]4565
Willy Tarreau9471b8c2013-12-15 13:31:35 +0100[diff] [blame]4566 /* Note that for now we don't reuse existing proxy connections */
Willy Tarreau973a5422015-08-05 21:47:23 +0200[diff] [blame]4567 if (unlikely((conn = si_alloc_conn(&s->si[1])) == NULL)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4568 txn->req.err_state = txn->req.msg_state;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]4569 txn->req.msg_state = HTTP_MSG_ERROR;
4570 txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4571 req->analysers &= AN_REQ_FLT_END;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4572 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_500));
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]4573
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4574 if (!(s->flags & SF_ERR_MASK))
4575 s->flags |= SF_ERR_RESOURCE;
4576 if (!(s->flags & SF_FINST_MASK))
4577 s->flags |= SF_FINST_R;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]4578
4579 return 0;
4580 }
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]4581
4582 path = http_get_path(txn);
4583 url2sa(req->buf->p + msg->sl.rq.u,
4584 path ? path - (req->buf->p + msg->sl.rq.u) : msg->sl.rq.u_l,
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]4585 &conn->addr.to, NULL);
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]4586 /* if the path was found, we have to remove everything between
4587 * req->buf->p + msg->sl.rq.u and path (excluded). If it was not
4588 * found, we need to replace from req->buf->p + msg->sl.rq.u for
4589 * u_l characters by a single "/".
4590 */
4591 if (path) {
4592 char *cur_ptr = req->buf->p;
4593 char *cur_end = cur_ptr + txn->req.sl.rq.l;
4594 int delta;
4595
4596 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u, path, NULL, 0);
4597 http_msg_move_end(&txn->req, delta);
4598 cur_end += delta;
4599 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
4600 goto return_bad_req;
4601 }
4602 else {
4603 char *cur_ptr = req->buf->p;
4604 char *cur_end = cur_ptr + txn->req.sl.rq.l;
4605 int delta;
4606
4607 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u,
4608 req->buf->p + msg->sl.rq.u + msg->sl.rq.u_l, "/", 1);
4609 http_msg_move_end(&txn->req, delta);
4610 cur_end += delta;
4611 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
4612 goto return_bad_req;
4613 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4614 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]4615
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4616 /*
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]4617 * 7: Now we can work with the cookies.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4618 * Note that doing so might move headers in the request, but
4619 * the fields will stay coherent and the URI will not move.
4620 * This should only be performed in the backend.
4621 */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]4622 if (s->be->cookie_name || sess->fe->capture_name)
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4623 manage_client_side_cookies(s, req);
Willy Tarreau7ac51f62007-03-25 16:00:04 +0200[diff] [blame]4624
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]4625 /* add unique-id if "header-unique-id" is specified */
4626
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]4627 if (!LIST_ISEMPTY(&sess->fe->format_unique_id) && !s->unique_id) {
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]4628 if ((s->unique_id = pool_alloc2(pool2_uniqueid)) == NULL)
4629 goto return_bad_req;
4630 s->unique_id[0] = '\0';
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4631 build_logline(s, s->unique_id, UNIQUEID_LEN, &sess->fe->format_unique_id);
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]4632 }
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]4633
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4634 if (sess->fe->header_unique_id && s->unique_id) {
4635 chunk_printf(&trash, "%s: %s", sess->fe->header_unique_id, s->unique_id);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4636 if (trash.len < 0)
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]4637 goto return_bad_req;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4638 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]4639 goto return_bad_req;
4640 }
4641
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]4642 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4643 * 9: add X-Forwarded-For if either the frontend or the backend
4644 * asks for it.
4645 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4646 if ((sess->fe->options | s->be->options) & PR_O_FWDFOR) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]4647 struct hdr_ctx ctx = { .idx = 0 };
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4648 if (!((sess->fe->options | s->be->options) & PR_O_FF_ALWAYS) &&
4649 http_find_header2(s->be->fwdfor_hdr_len ? s->be->fwdfor_hdr_name : sess->fe->fwdfor_hdr_name,
4650 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]4651 req->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]4652 /* The header is set to be added only if none is present
4653 * and we found it, so don't do anything.
4654 */
4655 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4656 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4657 /* Add an X-Forwarded-For header unless the source IP is
4658 * in the 'except' network range.
4659 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4660 if ((!sess->fe->except_mask.s_addr ||
4661 (((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr.s_addr & sess->fe->except_mask.s_addr)
4662 != sess->fe->except_net.s_addr) &&
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4663 (!s->be->except_mask.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4664 (((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]4665 != s->be->except_net.s_addr)) {
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]4666 int len;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4667 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4668 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr;
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]4669
4670 /* Note: we rely on the backend to get the header name to be used for
4671 * x-forwarded-for, because the header is really meant for the backends.
4672 * However, if the backend did not specify any option, we have to rely
4673 * on the frontend's header name.
4674 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4675 if (s->be->fwdfor_hdr_len) {
4676 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4677 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]4678 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4679 len = sess->fe->fwdfor_hdr_len;
4680 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]4681 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]4682 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]4683
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4684 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]4685 goto return_bad_req;
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]4686 }
4687 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4688 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET6) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4689 /* FIXME: for the sake of completeness, we should also support
4690 * 'except' here, although it is mostly useless in this case.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]4691 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4692 int len;
4693 char pn[INET6_ADDRSTRLEN];
4694 inet_ntop(AF_INET6,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4695 (const void *)&((struct sockaddr_in6 *)(&cli_conn->addr.from))->sin6_addr,
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4696 pn, sizeof(pn));
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]4697
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4698 /* Note: we rely on the backend to get the header name to be used for
4699 * x-forwarded-for, because the header is really meant for the backends.
4700 * However, if the backend did not specify any option, we have to rely
4701 * on the frontend's header name.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]4702 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4703 if (s->be->fwdfor_hdr_len) {
4704 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4705 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4706 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4707 len = sess->fe->fwdfor_hdr_len;
4708 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]4709 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]4710 len += snprintf(trash.str + len, trash.size - len, ": %s", pn);
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]4711
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4712 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]4713 goto return_bad_req;
4714 }
4715 }
4716
4717 /*
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4718 * 10: add X-Original-To if either the frontend or the backend
4719 * asks for it.
4720 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4721 if ((sess->fe->options | s->be->options) & PR_O_ORGTO) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4722
4723 /* FIXME: don't know if IPv6 can handle that case too. */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4724 if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4725 /* Add an X-Original-To header unless the destination IP is
4726 * in the 'except' network range.
4727 */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4728 conn_get_to_addr(cli_conn);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4729
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4730 if (cli_conn->addr.to.ss_family == AF_INET &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4731 ((!sess->fe->except_mask_to.s_addr ||
4732 (((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr.s_addr & sess->fe->except_mask_to.s_addr)
4733 != sess->fe->except_to.s_addr) &&
Emeric Brun5bd86a82010-10-22 17:23:04 +0200[diff] [blame]4734 (!s->be->except_mask_to.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4735 (((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]4736 != s->be->except_to.s_addr))) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4737 int len;
4738 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4739 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr;
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4740
4741 /* Note: we rely on the backend to get the header name to be used for
4742 * x-original-to, because the header is really meant for the backends.
4743 * However, if the backend did not specify any option, we have to rely
4744 * on the frontend's header name.
4745 */
4746 if (s->be->orgto_hdr_len) {
4747 len = s->be->orgto_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4748 memcpy(trash.str, s->be->orgto_hdr_name, len);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]4749 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4750 len = sess->fe->orgto_hdr_len;
4751 memcpy(trash.str, sess->fe->orgto_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]4752 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]4753 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]4754
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4755 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]4756 goto return_bad_req;
4757 }
4758 }
4759 }
4760
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]4761 /* 11: add "Connection: close" or "Connection: keep-alive" if needed and not yet set.
4762 * If an "Upgrade" token is found, the header is left untouched in order not to have
4763 * to deal with some servers bugs : some of them fail an Upgrade if anything but
4764 * "Upgrade" is present in the Connection header.
4765 */
4766 if (!(txn->flags & TX_HDR_CONN_UPG) &&
4767 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4768 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]4769 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]4770 unsigned int want_flags = 0;
4771
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4772 if (msg->flags & HTTP_MSGF_VER_11) {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]4773 if (((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4774 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]4775 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4776 !((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]4777 want_flags |= TX_CON_CLO_SET;
4778 } else {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]4779 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4780 ((sess->fe->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL &&
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]4781 (s->be->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL)) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4782 ((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]4783 want_flags |= TX_CON_KAL_SET;
4784 }
4785
4786 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]4787 http_change_connection_header(txn, msg, want_flags);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4788 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4789
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]4790
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4791 /* If we have no server assigned yet and we're balancing on url_param
4792 * with a POST request, we may be interested in checking the body for
4793 * that parameter. This will be done in another analyser.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4794 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4795 if (!(s->flags & (SF_ASSIGNED|SF_DIRECT)) &&
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4796 s->txn->meth == HTTP_METH_POST && s->be->url_param_name != NULL &&
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4797 (msg->flags & (HTTP_MSGF_CNT_LEN|HTTP_MSGF_TE_CHNK))) {
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4798 channel_dont_connect(req);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4799 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4800 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]4801
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4802 if (msg->flags & HTTP_MSGF_XFER_LEN) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4803 req->analysers &= ~AN_REQ_FLT_XFER_DATA;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4804 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]4805#ifdef TCP_QUICKACK
4806 /* We expect some data from the client. Unless we know for sure
4807 * we already have a full request, we have to re-enable quick-ack
4808 * in case we previously disabled it, otherwise we might cause
4809 * the client to delay further data.
4810 */
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4811 if ((sess->listener->options & LI_O_NOQUICKACK) &&
Willy Tarreau3c728722014-01-23 13:50:42 +0100[diff] [blame]4812 cli_conn && conn_ctrl_ready(cli_conn) &&
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4813 ((msg->flags & HTTP_MSGF_TE_CHNK) ||
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4814 (msg->body_len > req->buf->i - txn->req.eoh - 2)))
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]4815 setsockopt(cli_conn->t.sock.fd, IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one));
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]4816#endif
4817 }
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]4818
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4819 /*************************************************************
4820 * OK, that's finished for the headers. We have done what we *
4821 * could. Let's switch to the DATA state. *
4822 ************************************************************/
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4823 req->analyse_exp = TICK_ETERNITY;
4824 req->analysers &= ~an_bit;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]4825
Willy Tarreau7bb68ab2012-05-13 14:48:59 +0200[diff] [blame]4826 /* if the server closes the connection, we want to immediately react
4827 * and close the socket to save packets and syscalls.
4828 */
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4829 if (!(req->analysers & AN_REQ_HTTP_XFER_BODY))
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4830 s->si[1].flags |= SI_FL_NOHALF;
Willy Tarreau7bb68ab2012-05-13 14:48:59 +0200[diff] [blame]4831
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4832 s->logs.tv_request = now;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4833 /* OK let's go on with the BODY now */
4834 return 1;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]4835
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4836 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]4837 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
Willy Tarreauf073a832009-03-01 23:21:47 +0100[diff] [blame]4838 /* we detected a parsing error. We want to archive this request
4839 * in the dedicated proxy area for later troubleshooting.
4840 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4841 http_capture_bad_message(&sess->fe->invalid_req, s, msg, msg->err_state, sess->fe);
Willy Tarreauf073a832009-03-01 23:21:47 +0100[diff] [blame]4842 }
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]4843
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4844 txn->req.err_state = txn->req.msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]4845 txn->req.msg_state = HTTP_MSG_ERROR;
4846 txn->status = 400;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4847 req->analysers &= AN_REQ_FLT_END;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4848 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]4849
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4850 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4851 if (sess->listener->counters)
4852 sess->listener->counters->failed_req++;
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]4853
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4854 if (!(s->flags & SF_ERR_MASK))
4855 s->flags |= SF_ERR_PRXCOND;
4856 if (!(s->flags & SF_FINST_MASK))
4857 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]4858 return 0;
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]4859}
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]4860
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4861/* This function is an analyser which processes the HTTP tarpit. It always
4862 * returns zero, at the beginning because it prevents any other processing
4863 * from occurring, and at the end because it terminates the request.
4864 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4865int http_process_tarpit(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4866{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4867 struct http_txn *txn = s->txn;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4868
4869 /* This connection is being tarpitted. The CLIENT side has
4870 * already set the connect expiration date to the right
4871 * timeout. We just have to check that the client is still
4872 * there and that the timeout has not expired.
4873 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4874 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4875 if ((req->flags & (CF_SHUTR|CF_READ_ERROR)) == 0 &&
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4876 !tick_is_expired(req->analyse_exp, now_ms))
4877 return 0;
4878
4879 /* We will set the queue timer to the time spent, just for
4880 * logging purposes. We fake a 500 server error, so that the
4881 * attacker will not suspect his connection has been tarpitted.
4882 * It will not cause trouble to the logs because we can exclude
4883 * the tarpitted connections by filtering on the 'PT' status flags.
4884 */
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4885 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
4886
4887 txn->status = 500;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4888 if (!(req->flags & CF_READ_ERROR))
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4889 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_500));
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4890
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4891 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4892 req->analyse_exp = TICK_ETERNITY;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]4893
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4894 if (!(s->flags & SF_ERR_MASK))
4895 s->flags |= SF_ERR_PRXCOND;
4896 if (!(s->flags & SF_FINST_MASK))
4897 s->flags |= SF_FINST_T;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]4898 return 0;
4899}
4900
Willy Tarreau5a8f9472014-04-10 11:16:06 +0200[diff] [blame]4901/* This function is an analyser which waits for the HTTP request body. It waits
4902 * for either the buffer to be full, or the full advertised contents to have
4903 * reached the buffer. It must only be called after the standard HTTP request
4904 * processing has occurred, because it expects the request to be parsed and will
4905 * look for the Expect header. It may send a 100-Continue interim response. It
4906 * takes in input any state starting from HTTP_MSG_BODY and leaves with one of
4907 * HTTP_MSG_CHK_SIZE, HTTP_MSG_DATA or HTTP_MSG_TRAILERS. It returns zero if it
4908 * needs to read more data, or 1 once it has completed its analysis.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4909 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4910int http_wait_for_request_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4911{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4912 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4913 struct http_txn *txn = s->txn;
4914 struct http_msg *msg = &s->txn->req;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4915
4916 /* We have to parse the HTTP request body to find any required data.
4917 * "balance url_param check_post" should have been the only way to get
4918 * into this. We were brought here after HTTP header analysis, so all
4919 * related structures are ready.
4920 */
4921
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4922 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE) {
4923 /* This is the first call */
4924 if (msg->msg_state < HTTP_MSG_BODY)
4925 goto missing_data;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4926
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4927 if (msg->msg_state < HTTP_MSG_100_SENT) {
4928 /* If we have HTTP/1.1 and Expect: 100-continue, then we must
4929 * send an HTTP/1.1 100 Continue intermediate response.
4930 */
4931 if (msg->flags & HTTP_MSGF_VER_11) {
4932 struct hdr_ctx ctx;
4933 ctx.idx = 0;
4934 /* Expect is allowed in 1.1, look for it */
4935 if (http_find_header2("Expect", 6, req->buf->p, &txn->hdr_idx, &ctx) &&
4936 unlikely(ctx.vlen == 12 && strncasecmp(ctx.line+ctx.val, "100-continue", 12) == 0)) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4937 bo_inject(&s->res, http_100_chunk.str, http_100_chunk.len);
Thierry FOURNIER / OZON.IO43ad11d2016-12-12 15:19:58 +0100[diff] [blame]4938 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4939 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4940 }
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4941 msg->msg_state = HTTP_MSG_100_SENT;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4942 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4943
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]4944 /* we have msg->sov which points to the first byte of message body.
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4945 * req->buf->p still points to the beginning of the message. We
4946 * must save the body in msg->next because it survives buffer
4947 * re-alignments.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4948 */
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]4949 msg->next = msg->sov;
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4950
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4951 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4952 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
4953 else
4954 msg->msg_state = HTTP_MSG_DATA;
4955 }
4956
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4957 if (!(msg->flags & HTTP_MSGF_TE_CHNK)) {
4958 /* We're in content-length mode, we just have to wait for enough data. */
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4959 if (http_body_bytes(msg) < msg->body_len)
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4960 goto missing_data;
4961
4962 /* OK we have everything we need now */
4963 goto http_end;
4964 }
4965
4966 /* OK here we're parsing a chunked-encoded message */
4967
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4968 if (msg->msg_state == HTTP_MSG_CHUNK_SIZE) {
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]4969 /* read the chunk size and assign it to ->chunk_len, then
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]4970 * set ->sov and ->next to point to the body and switch to DATA or
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4971 * TRAILERS state.
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4972 */
Willy Tarreau4baf44b2012-03-09 14:10:20 +0100[diff] [blame]4973 int ret = http_parse_chunk_size(msg);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4974
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4975 if (!ret)
4976 goto missing_data;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4977 else if (ret < 0) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4978 stream_inc_http_err_ctr(s);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4979 goto return_bad_req;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]4980 }
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]4981 msg->next += ret;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4982 msg->msg_state = msg->chunk_len ? HTTP_MSG_DATA : HTTP_MSG_TRAILERS;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4983 }
4984
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4985 /* Now we're in HTTP_MSG_DATA or HTTP_MSG_TRAILERS state.
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4986 * We have the first data byte is in msg->sov + msg->sol. We're waiting
4987 * for at least a whole chunk or the whole content length bytes after
4988 * msg->sov + msg->sol.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4989 */
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]4990 if (msg->msg_state == HTTP_MSG_TRAILERS)
4991 goto http_end;
4992
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]4993 if (http_body_bytes(msg) >= msg->body_len) /* we have enough bytes now */
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4994 goto http_end;
4995
4996 missing_data:
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4997 /* we get here if we need to wait for more data. If the buffer is full,
4998 * we have the maximum we can expect.
4999 */
5000 if (buffer_full(req->buf, global.tune.maxrewrite))
5001 goto http_end;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]5002
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5003 if ((req->flags & CF_READ_TIMEOUT) || tick_is_expired(req->analyse_exp, now_ms)) {
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]5004 txn->status = 408;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5005 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_408));
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]5006
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5007 if (!(s->flags & SF_ERR_MASK))
5008 s->flags |= SF_ERR_CLITO;
5009 if (!(s->flags & SF_FINST_MASK))
5010 s->flags |= SF_FINST_D;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]5011 goto return_err_msg;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]5012 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]5013
5014 /* we get here if we need to wait for more data */
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]5015 if (!(req->flags & (CF_SHUTR | CF_READ_ERROR))) {
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]5016 /* Not enough data. We'll re-use the http-request
5017 * timeout here. Ideally, we should set the timeout
5018 * relative to the accept() date. We just set the
5019 * request timeout once at the beginning of the
5020 * request.
5021 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5022 channel_dont_connect(req);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]5023 if (!tick_isset(req->analyse_exp))
Willy Tarreaucd7afc02009-07-12 10:03:17 +0200[diff] [blame]5024 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]5025 return 0;
5026 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]5027
5028 http_end:
5029 /* The situation will not evolve, so let's give up on the analysis. */
5030 s->logs.tv_request = now; /* update the request timer to reflect full request */
5031 req->analysers &= ~an_bit;
5032 req->analyse_exp = TICK_ETERNITY;
5033 return 1;
5034
5035 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5036 txn->req.err_state = txn->req.msg_state;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]5037 txn->req.msg_state = HTTP_MSG_ERROR;
5038 txn->status = 400;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5039 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_400));
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]5040
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5041 if (!(s->flags & SF_ERR_MASK))
5042 s->flags |= SF_ERR_PRXCOND;
5043 if (!(s->flags & SF_FINST_MASK))
5044 s->flags |= SF_FINST_R;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]5045
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]5046 return_err_msg:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5047 req->analysers &= AN_REQ_FLT_END;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5048 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5049 if (sess->listener->counters)
5050 sess->listener->counters->failed_req++;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]5051 return 0;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]5052}
5053
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]5054/* send a server's name with an outgoing request over an established connection.
5055 * Note: this function is designed to be called once the request has been scheduled
5056 * for being forwarded. This is the reason why it rewinds the buffer before
5057 * proceeding.
5058 */
Willy Tarreau45c0d982012-03-09 12:11:57 +0100[diff] [blame]5059int 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]5060
5061 struct hdr_ctx ctx;
5062
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]5063 char *hdr_name = be->server_id_hdr_name;
5064 int hdr_name_len = be->server_id_hdr_len;
Willy Tarreau394db372012-10-12 22:40:39 +0200[diff] [blame]5065 struct channel *chn = txn->req.chn;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]5066 char *hdr_val;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]5067 unsigned int old_o, old_i;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]5068
William Lallemandd9e90662012-01-30 17:27:17 +0100[diff] [blame]5069 ctx.idx = 0;
5070
Willy Tarreau211cdec2014-04-17 20:18:08 +0200[diff] [blame]5071 old_o = http_hdr_rewind(&txn->req);
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]5072 if (old_o) {
5073 /* The request was already skipped, let's restore it */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5074 b_rew(chn->buf, old_o);
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]5075 txn->req.next += old_o;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5076 txn->req.sov += old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]5077 }
5078
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5079 old_i = chn->buf->i;
5080 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]5081 /* remove any existing values from the header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]5082 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]5083 }
5084
5085 /* Add the new header requested with the server value */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]5086 hdr_val = trash.str;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]5087 memcpy(hdr_val, hdr_name, hdr_name_len);
5088 hdr_val += hdr_name_len;
5089 *hdr_val++ = ':';
5090 *hdr_val++ = ' ';
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]5091 hdr_val += strlcpy2(hdr_val, srv_name, trash.str + trash.size - hdr_val);
5092 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]5093
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]5094 if (old_o) {
5095 /* If this was a forwarded request, we must readjust the amount of
5096 * data to be forwarded in order to take into account the size
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]5097 * variations. Note that the current state is >= HTTP_MSG_BODY,
5098 * so we don't have to adjust ->sol.
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]5099 */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]5100 old_o += chn->buf->i - old_i;
5101 b_adv(chn->buf, old_o);
5102 txn->req.next -= old_o;
5103 txn->req.sov -= old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]5104 }
5105
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]5106 return 0;
5107}
5108
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5109/* Terminate current transaction and prepare a new one. This is very tricky
5110 * right now but it works.
5111 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5112void http_end_txn_clean_session(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5113{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5114 int prev_status = s->txn->status;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]5115 struct proxy *fe = strm_fe(s);
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]5116 struct proxy *be = s->be;
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]5117 struct connection *srv_conn;
5118 struct server *srv;
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]5119 unsigned int prev_flags = s->txn->flags;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]5120
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5121 /* FIXME: We need a more portable way of releasing a backend's and a
5122 * server's connections. We need a safer way to reinitialize buffer
5123 * flags. We also need a more accurate method for computing per-request
5124 * data.
5125 */
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]5126 srv_conn = objt_conn(s->si[1].end);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5127
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5128 /* unless we're doing keep-alive, we want to quickly close the connection
5129 * to the server.
5130 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5131 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5132 !si_conn_ready(&s->si[1])) {
5133 s->si[1].flags |= SI_FL_NOLINGER | SI_FL_NOHALF;
5134 si_shutr(&s->si[1]);
5135 si_shutw(&s->si[1]);
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5136 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5137
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5138 if (s->flags & SF_BE_ASSIGNED) {
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]5139 be->beconn--;
Willy Tarreau2d5cd472012-03-01 23:34:37 +0100[diff] [blame]5140 if (unlikely(s->srv_conn))
5141 sess_change_server(s, NULL);
5142 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5143
5144 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5145 stream_process_counters(s);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5146
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5147 if (s->txn->status) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5148 int n;
5149
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5150 n = s->txn->status / 100;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5151 if (n < 1 || n > 5)
5152 n = 0;
5153
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5154 if (fe->mode == PR_MODE_HTTP) {
5155 fe->fe_counters.p.http.rsp[n]++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]5156 }
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5157 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]5158 (be->mode == PR_MODE_HTTP)) {
5159 be->be_counters.p.http.rsp[n]++;
5160 be->be_counters.p.http.cum_req++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]5161 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5162 }
5163
5164 /* don't count other requests' data */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5165 s->logs.bytes_in -= s->req.buf->i;
5166 s->logs.bytes_out -= s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5167
5168 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5169 if (!LIST_ISEMPTY(&fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5170 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5171 (!(fe->options & PR_O_NULLNOLOG) || s->req.total)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5172 s->do_log(s);
5173 }
5174
Willy Tarreaud713bcc2014-06-25 15:36:04 +0200[diff] [blame]5175 /* stop tracking content-based counters */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5176 stream_stop_content_counters(s);
5177 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +0200[diff] [blame]5178
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5179 s->logs.accept_date = date; /* user-visible date for logging */
5180 s->logs.tv_accept = now; /* corrected date for internal use */
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200[diff] [blame]5181 s->logs.t_handshake = 0; /* There are no handshake in keep alive connection. */
5182 s->logs.t_idle = -1;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5183 tv_zero(&s->logs.tv_request);
5184 s->logs.t_queue = -1;
5185 s->logs.t_connect = -1;
5186 s->logs.t_data = -1;
5187 s->logs.t_close = 0;
5188 s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */
5189 s->logs.srv_queue_size = 0; /* we will get this number soon */
5190
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5191 s->logs.bytes_in = s->req.total = s->req.buf->i;
5192 s->logs.bytes_out = s->res.total = s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5193
5194 if (s->pend_pos)
5195 pendconn_free(s->pend_pos);
5196
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5197 if (objt_server(s->target)) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5198 if (s->flags & SF_CURR_SESS) {
5199 s->flags &= ~SF_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5200 objt_server(s->target)->cur_sess--;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5201 }
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]5202 if (may_dequeue_tasks(objt_server(s->target), be))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5203 process_srv_queue(objt_server(s->target));
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5204 }
5205
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5206 s->target = NULL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5207
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5208 /* only release our endpoint if we don't intend to reuse the
5209 * connection.
5210 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5211 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5212 !si_conn_ready(&s->si[1])) {
5213 si_release_endpoint(&s->si[1]);
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]5214 srv_conn = NULL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5215 }
5216
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5217 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
5218 s->si[1].err_type = SI_ET_NONE;
5219 s->si[1].conn_retries = 0; /* used for logging too */
5220 s->si[1].exp = TICK_ETERNITY;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5221 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]5222 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);
5223 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]5224 s->flags &= ~(SF_DIRECT|SF_ASSIGNED|SF_ADDR_SET|SF_BE_ASSIGNED|SF_FORCE_PRST|SF_IGNORE_PRST);
5225 s->flags &= ~(SF_CURR_SESS|SF_REDIRECTABLE|SF_SRV_REUSED);
5226 s->flags &= ~(SF_ERR_MASK|SF_FINST_MASK|SF_REDISP);
Willy Tarreau543db622012-11-15 16:41:22 +0100[diff] [blame]5227
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5228 s->txn->meth = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5229 http_reset_txn(s);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5230 s->txn->flags |= TX_NOT_FIRST | TX_WAIT_NEXT_RQ;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]5231
5232 if (prev_status == 401 || prev_status == 407) {
5233 /* In HTTP keep-alive mode, if we receive a 401, we still have
5234 * a chance of being able to send the visitor again to the same
5235 * server over the same connection. This is required by some
5236 * broken protocols such as NTLM, and anyway whenever there is
5237 * an opportunity for sending the challenge to the proper place,
5238 * it's better to do it (at least it helps with debugging).
5239 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5240 s->txn->flags |= TX_PREFER_LAST;
Willy Tarreaubd99d582015-09-02 10:40:43 +0200[diff] [blame]5241 if (srv_conn)
5242 srv_conn->flags |= CO_FL_PRIVATE;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]5243 }
5244
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]5245 /* Never ever allow to reuse a connection from a non-reuse backend */
5246 if (srv_conn && (be->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
5247 srv_conn->flags |= CO_FL_PRIVATE;
5248
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5249 if (fe->options2 & PR_O2_INDEPSTR)
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5250 s->si[1].flags |= SI_FL_INDEP_STR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5251
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5252 if (fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5253 s->req.flags |= CF_NEVER_WAIT;
5254 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200[diff] [blame]5255 }
5256
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5257 /* if the request buffer is not empty, it means we're
5258 * about to process another request, so send pending
5259 * data with MSG_MORE to merge TCP packets when possible.
Willy Tarreau065e8332010-01-08 00:30:20 +0100[diff] [blame]5260 * Just don't do this if the buffer is close to be full,
5261 * because the request will wait for it to flush a little
5262 * bit before proceeding.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5263 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5264 if (s->req.buf->i) {
5265 if (s->res.buf->o &&
5266 !buffer_full(s->res.buf, global.tune.maxrewrite) &&
5267 bi_end(s->res.buf) <= s->res.buf->data + s->res.buf->size - global.tune.maxrewrite)
5268 s->res.flags |= CF_EXPECT_MORE;
Willy Tarreau065e8332010-01-08 00:30:20 +0100[diff] [blame]5269 }
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]5270
Willy Tarreau714ea782015-11-25 20:11:11 +0100[diff] [blame]5271 /* we're removing the analysers, we MUST re-enable events detection.
5272 * We don't enable close on the response channel since it's either
5273 * already closed, or in keep-alive with an idle connection handler.
5274 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5275 channel_auto_read(&s->req);
5276 channel_auto_close(&s->req);
5277 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5278
Willy Tarreau1c59bd52015-11-02 20:20:11 +0100[diff] [blame]5279 /* we're in keep-alive with an idle connection, monitor it if not already done */
5280 if (srv_conn && LIST_ISEMPTY(&srv_conn->list)) {
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]5281 srv = objt_server(srv_conn->target);
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]5282 if (!srv)
5283 si_idle_conn(&s->si[1], NULL);
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]5284 else if (srv_conn->flags & CO_FL_PRIVATE)
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]5285 si_idle_conn(&s->si[1], &srv->priv_conns);
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]5286 else if (prev_flags & TX_NOT_FIRST)
5287 /* note: we check the request, not the connection, but
5288 * this is valid for strategies SAFE and AGGR, and in
5289 * case of ALWS, we don't care anyway.
5290 */
5291 si_idle_conn(&s->si[1], &srv->safe_conns);
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]5292 else
5293 si_idle_conn(&s->si[1], &srv->idle_conns);
Willy Tarreau4320eaa2015-08-05 11:08:30 +0200[diff] [blame]5294 }
Willy Tarreau27375622013-12-17 00:00:28 +0100[diff] [blame]5295
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5296 if (HAS_FILTERS(s)) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5297 s->req.analysers &= AN_REQ_FLT_END;
5298 s->res.analysers &= AN_RES_FLT_END;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5299 }
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5300 else {
5301 s->req.analysers = strm_li(s) ? strm_li(s)->analysers : 0;
5302 s->res.analysers = 0;
5303 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5304}
5305
5306
5307/* This function updates the request state machine according to the response
5308 * state machine and buffer flags. It returns 1 if it changes anything (flag
5309 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
5310 * it is only used to find when a request/response couple is complete. Both
5311 * this function and its equivalent should loop until both return zero. It
5312 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
5313 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5314int http_sync_req_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5315{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5316 struct channel *chn = &s->req;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5317 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5318 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5319 unsigned int old_state = txn->req.msg_state;
5320
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5321 if (unlikely(txn->req.msg_state < HTTP_MSG_BODY))
5322 return 0;
5323
5324 if (txn->req.msg_state == HTTP_MSG_DONE) {
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]5325 /* No need to read anymore, the request was completely parsed.
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]5326 * We can shut the read side unless we want to abort_on_close,
5327 * or we have a POST request. The issue with POST requests is
5328 * that some browsers still send a CRLF after the request, and
5329 * this CRLF must be read so that it does not remain in the kernel
5330 * buffers, otherwise a close could cause an RST on some systems
5331 * (eg: Linux).
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]5332 * Note that if we're using keep-alive on the client side, we'd
5333 * rather poll now and keep the polling enabled for the whole
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5334 * stream's life than enabling/disabling it between each
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]5335 * response and next request.
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]5336 */
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]5337 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
5338 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
5339 !(s->be->options & PR_O_ABRT_CLOSE) &&
5340 txn->meth != HTTP_METH_POST)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5341 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5342
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]5343 /* if the server closes the connection, we want to immediately react
5344 * and close the socket to save packets and syscalls.
5345 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5346 s->si[1].flags |= SI_FL_NOHALF;
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]5347
Willy Tarreau7f876a12015-11-18 11:59:55 +0100[diff] [blame]5348 /* In any case we've finished parsing the request so we must
5349 * disable Nagle when sending data because 1) we're not going
5350 * to shut this side, and 2) the server is waiting for us to
5351 * send pending data.
5352 */
5353 chn->flags |= CF_NEVER_WAIT;
5354
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5355 if (txn->rsp.msg_state == HTTP_MSG_ERROR)
5356 goto wait_other_side;
5357
5358 if (txn->rsp.msg_state < HTTP_MSG_DONE) {
5359 /* The server has not finished to respond, so we
5360 * don't want to move in order not to upset it.
5361 */
5362 goto wait_other_side;
5363 }
5364
5365 if (txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
5366 /* if any side switches to tunnel mode, the other one does too */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5367 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5368 txn->req.msg_state = HTTP_MSG_TUNNEL;
5369 goto wait_other_side;
5370 }
5371
5372 /* When we get here, it means that both the request and the
5373 * response have finished receiving. Depending on the connection
5374 * mode, we'll have to wait for the last bytes to leave in either
5375 * direction, and sometimes for a close to be effective.
5376 */
5377
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5378 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
5379 /* Server-close mode : queue a connection close to the server */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5380 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW)))
5381 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5382 }
5383 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
5384 /* Option forceclose is set, or either side wants to close,
5385 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5386 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5387 * once both states are CLOSED.
5388 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5389 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
5390 channel_shutr_now(chn);
5391 channel_shutw_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5392 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5393 }
5394 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5395 /* The last possible modes are keep-alive and tunnel. Tunnel mode
5396 * will not have any analyser so it needs to poll for reads.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5397 */
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5398 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN) {
5399 channel_auto_read(chn);
5400 txn->req.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5401 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5402 }
5403
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5404 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5405 /* if we've just closed an output, let's switch */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5406 s->si[1].flags |= SI_FL_NOLINGER; /* we want to close ASAP */
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5407
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5408 if (!channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5409 txn->req.msg_state = HTTP_MSG_CLOSING;
5410 goto http_msg_closing;
5411 }
5412 else {
5413 txn->req.msg_state = HTTP_MSG_CLOSED;
5414 goto http_msg_closed;
5415 }
5416 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5417 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5418 }
5419
5420 if (txn->req.msg_state == HTTP_MSG_CLOSING) {
5421 http_msg_closing:
5422 /* nothing else to forward, just waiting for the output buffer
5423 * to be empty and for the shutw_now to take effect.
5424 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5425 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5426 txn->req.msg_state = HTTP_MSG_CLOSED;
5427 goto http_msg_closed;
5428 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5429 else if (chn->flags & CF_SHUTW) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5430 txn->req.err_state = txn->req.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5431 txn->req.msg_state = HTTP_MSG_ERROR;
5432 goto wait_other_side;
5433 }
5434 }
5435
5436 if (txn->req.msg_state == HTTP_MSG_CLOSED) {
5437 http_msg_closed:
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]5438 /* see above in MSG_DONE why we only do this in these states */
5439 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
5440 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
5441 !(s->be->options & PR_O_ABRT_CLOSE))
Willy Tarreau2e7a1652013-12-15 15:32:10 +0100[diff] [blame]5442 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5443 goto wait_other_side;
5444 }
5445
5446 wait_other_side:
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5447 return txn->req.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5448}
5449
5450
5451/* This function updates the response state machine according to the request
5452 * state machine and buffer flags. It returns 1 if it changes anything (flag
5453 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
5454 * it is only used to find when a request/response couple is complete. Both
5455 * this function and its equivalent should loop until both return zero. It
5456 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
5457 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5458int http_sync_res_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5459{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5460 struct channel *chn = &s->res;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5461 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5462 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5463 unsigned int old_state = txn->rsp.msg_state;
5464
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5465 if (unlikely(txn->rsp.msg_state < HTTP_MSG_BODY))
5466 return 0;
5467
5468 if (txn->rsp.msg_state == HTTP_MSG_DONE) {
5469 /* In theory, we don't need to read anymore, but we must
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]5470 * still monitor the server connection for a possible close
5471 * while the request is being uploaded, so we don't disable
5472 * reading.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5473 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5474 /* channel_dont_read(chn); */
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5475
5476 if (txn->req.msg_state == HTTP_MSG_ERROR)
5477 goto wait_other_side;
5478
5479 if (txn->req.msg_state < HTTP_MSG_DONE) {
5480 /* The client seems to still be sending data, probably
5481 * because we got an error response during an upload.
5482 * We have the choice of either breaking the connection
5483 * or letting it pass through. Let's do the later.
5484 */
5485 goto wait_other_side;
5486 }
5487
5488 if (txn->req.msg_state == HTTP_MSG_TUNNEL) {
5489 /* if any side switches to tunnel mode, the other one does too */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5490 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5491 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]5492 chn->flags |= CF_NEVER_WAIT;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5493 goto wait_other_side;
5494 }
5495
5496 /* When we get here, it means that both the request and the
5497 * response have finished receiving. Depending on the connection
5498 * mode, we'll have to wait for the last bytes to leave in either
5499 * direction, and sometimes for a close to be effective.
5500 */
5501
5502 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
5503 /* Server-close mode : shut read and wait for the request
5504 * side to close its output buffer. The caller will detect
5505 * when we're in DONE and the other is in CLOSED and will
5506 * catch that for the final cleanup.
5507 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5508 if (!(chn->flags & (CF_SHUTR|CF_SHUTR_NOW)))
5509 channel_shutr_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5510 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5511 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
5512 /* Option forceclose is set, or either side wants to close,
5513 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5514 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5515 * once both states are CLOSED.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5516 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5517 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
5518 channel_shutr_now(chn);
5519 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]5520 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5521 }
5522 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5523 /* The last possible modes are keep-alive and tunnel. Tunnel will
5524 * need to forward remaining data. Keep-alive will need to monitor
5525 * for connection closing.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5526 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5527 channel_auto_read(chn);
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]5528 chn->flags |= CF_NEVER_WAIT;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5529 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN)
5530 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5531 }
5532
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5533 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5534 /* if we've just closed an output, let's switch */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5535 if (!channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5536 txn->rsp.msg_state = HTTP_MSG_CLOSING;
5537 goto http_msg_closing;
5538 }
5539 else {
5540 txn->rsp.msg_state = HTTP_MSG_CLOSED;
5541 goto http_msg_closed;
5542 }
5543 }
5544 goto wait_other_side;
5545 }
5546
5547 if (txn->rsp.msg_state == HTTP_MSG_CLOSING) {
5548 http_msg_closing:
5549 /* nothing else to forward, just waiting for the output buffer
5550 * to be empty and for the shutw_now to take effect.
5551 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5552 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5553 txn->rsp.msg_state = HTTP_MSG_CLOSED;
5554 goto http_msg_closed;
5555 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5556 else if (chn->flags & CF_SHUTW) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5557 txn->req.err_state = txn->req.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5558 txn->rsp.msg_state = HTTP_MSG_ERROR;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5559 s->be->be_counters.cli_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5560 if (objt_server(s->target))
5561 objt_server(s->target)->counters.cli_aborts++;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5562 goto wait_other_side;
5563 }
5564 }
5565
5566 if (txn->rsp.msg_state == HTTP_MSG_CLOSED) {
5567 http_msg_closed:
5568 /* drop any pending data */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5569 channel_truncate(chn);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5570 channel_auto_close(chn);
5571 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5572 goto wait_other_side;
5573 }
5574
5575 wait_other_side:
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]5576 /* We force the response to leave immediately if we're waiting for the
5577 * other side, since there is no pending shutdown to push it out.
5578 */
5579 if (!channel_is_empty(chn))
5580 chn->flags |= CF_SEND_DONTWAIT;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]5581 return txn->rsp.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5582}
5583
5584
5585/* Resync the request and response state machines. Return 1 if either state
5586 * changes.
5587 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5588int http_resync_states(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5589{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5590 struct http_txn *txn = s->txn;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5591 int old_req_state = txn->req.msg_state;
5592 int old_res_state = txn->rsp.msg_state;
5593
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5594 http_sync_req_state(s);
5595 while (1) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5596 if (!http_sync_res_state(s))
5597 break;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5598 if (!http_sync_req_state(s))
5599 break;
5600 }
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]5601
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5602 /* OK, both state machines agree on a compatible state.
5603 * There are a few cases we're interested in :
5604 * - HTTP_MSG_TUNNEL on either means we have to disable both analysers
5605 * - HTTP_MSG_CLOSED on both sides means we've reached the end in both
5606 * directions, so let's simply disable both analysers.
5607 * - HTTP_MSG_CLOSED on the response only means we must abort the
5608 * request.
5609 * - HTTP_MSG_CLOSED on the request and HTTP_MSG_DONE on the response
5610 * with server-close mode means we've completed one request and we
5611 * must re-initialize the server connection.
5612 */
5613
5614 if (txn->req.msg_state == HTTP_MSG_TUNNEL ||
5615 txn->rsp.msg_state == HTTP_MSG_TUNNEL ||
5616 (txn->req.msg_state == HTTP_MSG_CLOSED &&
5617 txn->rsp.msg_state == HTTP_MSG_CLOSED)) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5618 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5619 channel_auto_close(&s->req);
5620 channel_auto_read(&s->req);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5621 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5622 channel_auto_close(&s->res);
5623 channel_auto_read(&s->res);
Christopher Faulet6962f4e2016-11-28 14:21:27 +0100[diff] [blame]5624 if (txn->req.msg_state == HTTP_MSG_TUNNEL && HAS_REQ_DATA_FILTERS(s))
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5625 s->req.analysers |= AN_REQ_FLT_XFER_DATA;
Christopher Faulet6962f4e2016-11-28 14:21:27 +0100[diff] [blame]5626 if (txn->rsp.msg_state == HTTP_MSG_TUNNEL && HAS_RSP_DATA_FILTERS(s))
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5627 s->res.analysers |= AN_RES_FLT_XFER_DATA;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5628 }
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]5629 else if ((txn->req.msg_state >= HTTP_MSG_DONE &&
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5630 (txn->rsp.msg_state == HTTP_MSG_CLOSED || (s->res.flags & CF_SHUTW))) ||
Willy Tarreau2fa144c2010-01-04 23:13:26 +0100[diff] [blame]5631 txn->rsp.msg_state == HTTP_MSG_ERROR ||
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]5632 txn->req.msg_state == HTTP_MSG_ERROR) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5633 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5634 channel_auto_close(&s->res);
5635 channel_auto_read(&s->res);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5636 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5637 channel_abort(&s->req);
5638 channel_auto_close(&s->req);
5639 channel_auto_read(&s->req);
5640 channel_truncate(&s->req);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5641 }
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5642 else if ((txn->req.msg_state == HTTP_MSG_DONE ||
5643 txn->req.msg_state == HTTP_MSG_CLOSED) &&
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5644 txn->rsp.msg_state == HTTP_MSG_DONE &&
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]5645 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
5646 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
5647 /* server-close/keep-alive: terminate this transaction,
5648 * possibly killing the server connection and reinitialize
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]5649 * a fresh-new transaction, but only once we're sure there's
5650 * enough room in the request and response buffer to process
5651 * another request. The request buffer must not hold any
5652 * pending output data and the request buffer must not have
5653 * output data occupying the reserve.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5654 */
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]5655 if (s->req.buf->o)
5656 s->req.flags |= CF_WAKE_WRITE;
5657 else if (channel_congested(&s->res))
5658 s->res.flags |= CF_WAKE_WRITE;
5659 else
5660 http_end_txn_clean_session(s);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5661 }
5662
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5663 return txn->req.msg_state != old_req_state ||
5664 txn->rsp.msg_state != old_res_state;
5665}
5666
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5667/* This function is an analyser which forwards request body (including chunk
5668 * sizes if any). It is called as soon as we must forward, even if we forward
5669 * zero byte. The only situation where it must not be called is when we're in
5670 * tunnel mode and we want to forward till the close. It's used both to forward
5671 * remaining data and to resync after end of body. It expects the msg_state to
5672 * 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]5673 * 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]5674 * When in MSG_DATA or MSG_TRAILERS, it will automatically forward chunk_len
Willy Tarreauc24715e2014-04-17 15:21:20 +0200[diff] [blame]5675 * bytes of pending data + the headers if not already done.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5676 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5677int http_request_forward_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5678{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5679 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5680 struct http_txn *txn = s->txn;
5681 struct http_msg *msg = &s->txn->req;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5682 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5683
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5684 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
5685 return 0;
5686
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5687 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]5688 ((req->flags & CF_SHUTW) && (req->to_forward || req->buf->o))) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]5689 /* Output closed while we were sending data. We must abort and
5690 * wake the other side up.
5691 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5692 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]5693 msg->msg_state = HTTP_MSG_ERROR;
5694 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]5695 return 1;
5696 }
5697
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5698 /* Note that we don't have to send 100-continue back because we don't
5699 * need the data to complete our job, and it's up to the server to
5700 * decide whether to return 100, 417 or anything else in return of
5701 * an "Expect: 100-continue" header.
5702 */
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5703 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5704 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
5705 ? HTTP_MSG_CHUNK_SIZE
5706 : HTTP_MSG_DATA);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5707
5708 /* TODO/filters: when http-buffer-request option is set or if a
5709 * rule on url_param exists, the first chunk size could be
5710 * already parsed. In that case, msg->next is after the chunk
5711 * size (including the CRLF after the size). So this case should
5712 * be handled to */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5713 }
5714
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]5715 /* Some post-connect processing might want us to refrain from starting to
5716 * forward data. Currently, the only reason for this is "balance url_param"
5717 * whichs need to parse/process the request after we've enabled forwarding.
5718 */
5719 if (unlikely(msg->flags & HTTP_MSGF_WAIT_CONN)) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5720 if (!(s->res.flags & CF_READ_ATTACHED)) {
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]5721 channel_auto_connect(req);
Willy Tarreau644c1012014-04-30 18:11:11 +0200[diff] [blame]5722 req->flags |= CF_WAKE_CONNECT;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5723 goto missing_data_or_waiting;
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]5724 }
5725 msg->flags &= ~HTTP_MSGF_WAIT_CONN;
5726 }
5727
Willy Tarreau80a92c02014-03-12 10:41:13 +0100[diff] [blame]5728 /* in most states, we should abort in case of early close */
5729 channel_auto_close(req);
5730
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]5731 if (req->to_forward) {
5732 /* We can't process the buffer's contents yet */
5733 req->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5734 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]5735 }
5736
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5737 if (msg->msg_state < HTTP_MSG_DONE) {
5738 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
5739 ? http_msg_forward_chunked_body(s, msg)
5740 : http_msg_forward_body(s, msg));
5741 if (!ret)
5742 goto missing_data_or_waiting;
5743 if (ret < 0)
5744 goto return_bad_req;
5745 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5746
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5747 /* other states, DONE...TUNNEL */
5748 /* we don't want to forward closes on DONE except in tunnel mode. */
5749 if ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
5750 channel_dont_close(req);
Willy Tarreau5c54c712010-07-17 08:02:58 +0200[diff] [blame]5751
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5752 if (http_resync_states(s)) {
5753 /* some state changes occurred, maybe the analyser
5754 * was disabled too. */
5755 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
5756 if (req->flags & CF_SHUTW) {
5757 /* request errors are most likely due to the
5758 * server aborting the transfer. */
5759 goto aborted_xfer;
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]5760 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5761 if (msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5762 http_capture_bad_message(&sess->fe->invalid_req, s, msg, msg->err_state, s->be);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5763 goto return_bad_req;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5764 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5765 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5766 }
5767
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5768 /* If "option abortonclose" is set on the backend, we want to monitor
5769 * the client's connection and forward any shutdown notification to the
5770 * server, which will decide whether to close or to go on processing the
5771 * request. We only do that in tunnel mode, and not in other modes since
5772 * it can be abused to exhaust source ports. */
5773 if (s->be->options & PR_O_ABRT_CLOSE) {
5774 channel_auto_read(req);
5775 if ((req->flags & (CF_SHUTR|CF_READ_NULL)) &&
5776 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN))
5777 s->si[1].flags |= SI_FL_NOLINGER;
5778 channel_auto_close(req);
5779 }
5780 else if (s->txn->meth == HTTP_METH_POST) {
5781 /* POST requests may require to read extra CRLF sent by broken
5782 * browsers and which could cause an RST to be sent upon close
5783 * on some systems (eg: Linux). */
5784 channel_auto_read(req);
5785 }
5786 return 0;
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]5787
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5788 missing_data_or_waiting:
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5789 /* stop waiting for data if the input is closed before the end */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5790 if (req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5791 if (!(s->flags & SF_ERR_MASK))
5792 s->flags |= SF_ERR_CLICL;
5793 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5794 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5795 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5796 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5797 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5798 }
5799
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5800 sess->fe->fe_counters.cli_aborts++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5801 s->be->be_counters.cli_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5802 if (objt_server(s->target))
5803 objt_server(s->target)->counters.cli_aborts++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5804
5805 goto return_bad_req_stats_ok;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]5806 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5807
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5808 /* waiting for the last bits to leave the buffer */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5809 if (req->flags & CF_SHUTW)
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5810 goto aborted_xfer;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5811
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]5812 /* When TE: chunked is used, we need to get there again to parse remaining
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5813 * 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]5814 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5815 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5816 channel_dont_close(req);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]5817
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5818 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5819 * 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]5820 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]5821 * modes are already handled by the stream sock layer. We must not do
5822 * this in content-length mode because it could present the MSG_MORE
5823 * flag with the last block of forwarded data, which would cause an
5824 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5825 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5826 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5827 req->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5828
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5829 return 0;
5830
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5831 return_bad_req: /* let's centralize all bad requests */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5832 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5833 if (sess->listener->counters)
5834 sess->listener->counters->failed_req++;
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]5835
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5836 return_bad_req_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5837 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5838 txn->req.msg_state = HTTP_MSG_ERROR;
5839 if (txn->status) {
5840 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5841 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5842 } else {
5843 txn->status = 400;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5844 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_400));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5845 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5846 req->analysers &= AN_REQ_FLT_END;
5847 s->res.analysers &= AN_RES_FLT_END; /* we're in data phase, we want to abort both directions */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5848
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5849 if (!(s->flags & SF_ERR_MASK))
5850 s->flags |= SF_ERR_PRXCOND;
5851 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5852 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5853 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5854 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5855 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5856 }
5857 return 0;
5858
5859 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5860 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5861 txn->req.msg_state = HTTP_MSG_ERROR;
5862 if (txn->status) {
5863 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5864 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5865 } else {
5866 txn->status = 502;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5867 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_502));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5868 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5869 req->analysers &= AN_REQ_FLT_END;
5870 s->res.analysers &= AN_RES_FLT_END; /* we're in data phase, we want to abort both directions */
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5871
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5872 sess->fe->fe_counters.srv_aborts++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5873 s->be->be_counters.srv_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5874 if (objt_server(s->target))
5875 objt_server(s->target)->counters.srv_aborts++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5876
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5877 if (!(s->flags & SF_ERR_MASK))
5878 s->flags |= SF_ERR_SRVCL;
5879 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5880 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5881 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5882 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5883 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]5884 }
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5885 return 0;
5886}
5887
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5888/* This stream analyser waits for a complete HTTP response. It returns 1 if the
5889 * processing can continue on next analysers, or zero if it either needs more
5890 * data or wants to immediately abort the response (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5891 * 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]5892 * when it has nothing left to do, and may remove any analyser when it wants to
5893 * abort.
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5894 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5895int http_wait_for_response(struct stream *s, struct channel *rep, int an_bit)
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]5896{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5897 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5898 struct http_txn *txn = s->txn;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5899 struct http_msg *msg = &txn->rsp;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5900 struct hdr_ctx ctx;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5901 int use_close_only;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5902 int cur_idx;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5903 int n;
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]5904
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5905 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]5906 now_ms, __FUNCTION__,
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5907 s,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5908 rep,
5909 rep->rex, rep->wex,
5910 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5911 rep->buf->i,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]5912 rep->analysers);
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200[diff] [blame]5913
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5914 /*
5915 * Now parse the partial (or complete) lines.
5916 * We will check the response syntax, and also join multi-line
5917 * headers. An index of all the lines will be elaborated while
5918 * parsing.
5919 *
5920 * For the parsing, we use a 28 states FSM.
5921 *
5922 * Here is the information we currently have :
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5923 * rep->buf->p = beginning of response
5924 * rep->buf->p + msg->eoh = end of processed headers / start of current one
5925 * rep->buf->p + rep->buf->i = end of input data
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]5926 * msg->eol = end of current header or line (LF or CRLF)
5927 * msg->next = first non-visited byte
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5928 */
5929
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5930 next_one:
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5931 /* There's a protected area at the end of the buffer for rewriting
5932 * purposes. We don't want to start to parse the request if the
5933 * protected area is affected, because we may have to move processed
5934 * data later, which is much more complicated.
5935 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5936 if (buffer_not_empty(rep->buf) && msg->msg_state < HTTP_MSG_ERROR) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]5937 if (unlikely(!channel_is_rewritable(rep))) {
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5938 /* some data has still not left the buffer, wake us once that's done */
5939 if (rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
5940 goto abort_response;
5941 channel_dont_close(rep);
5942 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]5943 rep->flags |= CF_WAKE_WRITE;
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5944 return 0;
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5945 }
5946
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]5947 if (unlikely(bi_end(rep->buf) < b_ptr(rep->buf, msg->next) ||
5948 bi_end(rep->buf) > rep->buf->data + rep->buf->size - global.tune.maxrewrite))
5949 buffer_slow_realign(rep->buf);
5950
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5951 if (likely(msg->next < rep->buf->i))
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]5952 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]5953 }
5954
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5955 /* 1: we might have to print this header in debug mode */
5956 if (unlikely((global.mode & MODE_DEBUG) &&
5957 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]5958 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5959 char *eol, *sol;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5960
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5961 sol = rep->buf->p;
5962 eol = sol + (msg->sl.st.l ? msg->sl.st.l : rep->buf->i);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5963 debug_hdr("srvrep", s, sol, eol);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5964
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5965 sol += hdr_idx_first_pos(&txn->hdr_idx);
5966 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5967
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5968 while (cur_idx) {
5969 eol = sol + txn->hdr_idx.v[cur_idx].len;
5970 debug_hdr("srvhdr", s, sol, eol);
5971 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
5972 cur_idx = txn->hdr_idx.v[cur_idx].next;
5973 }
5974 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5975
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5976 /*
5977 * Now we quickly check if we have found a full valid response.
5978 * If not so, we check the FD and buffer states before leaving.
5979 * A full response is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5980 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5981 * responses are checked first.
5982 *
5983 * Depending on whether the client is still there or not, we
5984 * may send an error response back or not. Note that normally
5985 * we should only check for HTTP status there, and check I/O
5986 * errors somewhere else.
5987 */
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5988
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]5989 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5990 /* Invalid response */
5991 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
5992 /* we detected a parsing error. We want to archive this response
5993 * in the dedicated proxy area for later troubleshooting.
5994 */
5995 hdr_response_bad:
5996 if (msg->msg_state == HTTP_MSG_ERROR || msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5997 http_capture_bad_message(&s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5998
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5999 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6000 if (objt_server(s->target)) {
6001 objt_server(s->target)->counters.failed_resp++;
6002 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]6003 }
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]6004 abort_response:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6005 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6006 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6007 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]6008 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]6009 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6010 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_502));
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6011
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6012 if (!(s->flags & SF_ERR_MASK))
6013 s->flags |= SF_ERR_PRXCOND;
6014 if (!(s->flags & SF_FINST_MASK))
6015 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6016
6017 return 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6018 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6019
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6020 /* too large response does not fit in buffer. */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6021 else if (buffer_full(rep->buf, global.tune.maxrewrite)) {
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]6022 if (msg->err_pos < 0)
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6023 msg->err_pos = rep->buf->i;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6024 goto hdr_response_bad;
6025 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6026
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6027 /* read error */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6028 else if (rep->flags & CF_READ_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6029 if (msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6030 http_capture_bad_message(&s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]6031 else if (txn->flags & TX_NOT_FIRST)
6032 goto abort_keep_alive;
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]6033
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]6034 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6035 if (objt_server(s->target)) {
6036 objt_server(s->target)->counters.failed_resp++;
6037 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_ERROR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]6038 }
Willy Tarreau461f6622008-08-15 23:43:19 +0200[diff] [blame]6039
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6040 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6041 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6042 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]6043 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]6044 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6045 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_502));
Willy Tarreau816b9792009-09-15 21:25:21 +0200[diff] [blame]6046
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6047 if (!(s->flags & SF_ERR_MASK))
6048 s->flags |= SF_ERR_SRVCL;
6049 if (!(s->flags & SF_FINST_MASK))
6050 s->flags |= SF_FINST_H;
Willy Tarreaucebf57e2008-08-15 18:16:37 +0200[diff] [blame]6051 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6052 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6053
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +0200[diff] [blame]6054 /* read timeout : return a 504 to the client. */
6055 else if (rep->flags & CF_READ_TIMEOUT) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6056 if (msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6057 http_capture_bad_message(&s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]6058
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]6059 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6060 if (objt_server(s->target)) {
6061 objt_server(s->target)->counters.failed_resp++;
6062 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_TIMEOUT);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]6063 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]6064
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6065 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6066 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6067 txn->status = 504;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]6068 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]6069 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6070 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_504));
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]6071
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6072 if (!(s->flags & SF_ERR_MASK))
6073 s->flags |= SF_ERR_SRVTO;
6074 if (!(s->flags & SF_FINST_MASK))
6075 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6076 return 0;
6077 }
Willy Tarreaua7c52762008-08-16 18:40:18 +0200[diff] [blame]6078
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6079 /* client abort with an abortonclose */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6080 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]6081 sess->fe->fe_counters.cli_aborts++;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6082 s->be->be_counters.cli_aborts++;
6083 if (objt_server(s->target))
6084 objt_server(s->target)->counters.cli_aborts++;
6085
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6086 rep->analysers &= AN_RES_FLT_END;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6087 channel_auto_close(rep);
6088
6089 txn->status = 400;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]6090 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6091 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_400));
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6092
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6093 if (!(s->flags & SF_ERR_MASK))
6094 s->flags |= SF_ERR_CLICL;
6095 if (!(s->flags & SF_FINST_MASK))
6096 s->flags |= SF_FINST_H;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6097
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6098 /* process_stream() will take care of the error */
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6099 return 0;
6100 }
6101
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]6102 /* close from server, capture the response if the server has started to respond */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6103 else if (rep->flags & CF_SHUTR) {
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]6104 if (msg->msg_state >= HTTP_MSG_RPVER || msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6105 http_capture_bad_message(&s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]6106 else if (txn->flags & TX_NOT_FIRST)
6107 goto abort_keep_alive;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]6108
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]6109 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6110 if (objt_server(s->target)) {
6111 objt_server(s->target)->counters.failed_resp++;
6112 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_BROKEN_PIPE);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]6113 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]6114
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6115 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6116 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6117 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]6118 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]6119 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6120 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_502));
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]6121
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6122 if (!(s->flags & SF_ERR_MASK))
6123 s->flags |= SF_ERR_SRVCL;
6124 if (!(s->flags & SF_FINST_MASK))
6125 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6126 return 0;
6127 }
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]6128
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6129 /* write error to client (we don't send any message then) */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6130 else if (rep->flags & CF_WRITE_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6131 if (msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6132 http_capture_bad_message(&s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]6133 else if (txn->flags & TX_NOT_FIRST)
6134 goto abort_keep_alive;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]6135
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]6136 s->be->be_counters.failed_resp++;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6137 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6138 channel_auto_close(rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6139
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6140 if (!(s->flags & SF_ERR_MASK))
6141 s->flags |= SF_ERR_CLICL;
6142 if (!(s->flags & SF_FINST_MASK))
6143 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6144
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6145 /* process_stream() will take care of the error */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6146 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6147 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]6148
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6149 channel_dont_close(rep);
Willy Tarreau3f3997e2013-12-15 15:21:32 +0100[diff] [blame]6150 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6151 return 0;
6152 }
6153
6154 /* More interesting part now : we know that we have a complete
6155 * response which at least looks like HTTP. We have an indicator
6156 * of each header's length, so we can parse them quickly.
6157 */
6158
6159 if (unlikely(msg->err_pos >= 0))
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6160 http_capture_bad_message(&s->be->invalid_rep, s, msg, msg->err_state, sess->fe);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6161
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6162 /*
6163 * 1: get the status code
6164 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6165 n = rep->buf->p[msg->sl.st.c] - '0';
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6166 if (n < 1 || n > 5)
6167 n = 0;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]6168 /* when the client triggers a 4xx from the server, it's most often due
6169 * to a missing object or permission. These events should be tracked
6170 * because if they happen often, it may indicate a brute force or a
6171 * vulnerability scan.
6172 */
6173 if (n == 4)
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6174 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]6175
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6176 if (objt_server(s->target))
6177 objt_server(s->target)->counters.p.http.rsp[n]++;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6178
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]6179 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
6180 * exactly one digit "." one digit. This check may be disabled using
6181 * option accept-invalid-http-response.
6182 */
6183 if (!(s->be->options2 & PR_O2_RSPBUG_OK)) {
6184 if (msg->sl.st.v_l != 8) {
6185 msg->err_pos = 0;
6186 goto hdr_response_bad;
6187 }
6188
6189 if (rep->buf->p[4] != '/' ||
6190 !isdigit((unsigned char)rep->buf->p[5]) ||
6191 rep->buf->p[6] != '.' ||
6192 !isdigit((unsigned char)rep->buf->p[7])) {
6193 msg->err_pos = 4;
6194 goto hdr_response_bad;
6195 }
6196 }
6197
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6198 /* check if the response is HTTP/1.1 or above */
6199 if ((msg->sl.st.v_l == 8) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6200 ((rep->buf->p[5] > '1') ||
6201 ((rep->buf->p[5] == '1') && (rep->buf->p[7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6202 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6203
6204 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]6205 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]6206
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6207 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6208 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6209
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6210 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]6211
Willy Tarreau39650402010-03-15 19:44:39 +0100[diff] [blame]6212 /* Adjust server's health based on status code. Note: status codes 501
6213 * and 505 are triggered on demand by client request, so we must not
6214 * count them as server failures.
6215 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6216 if (objt_server(s->target)) {
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]6217 if (txn->status >= 100 && (txn->status < 500 || txn->status == 501 || txn->status == 505))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6218 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_OK);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]6219 else
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6220 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_STS);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]6221 }
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]6222
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6223 /*
6224 * 2: check for cacheability.
6225 */
6226
6227 switch (txn->status) {
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]6228 case 100:
6229 /*
6230 * We may be facing a 100-continue response, in which case this
6231 * is not the right response, and we're waiting for the next one.
6232 * Let's allow this response to go to the client and wait for the
6233 * next one.
6234 */
6235 hdr_idx_init(&txn->hdr_idx);
6236 msg->next -= channel_forward(rep, msg->next);
6237 msg->msg_state = HTTP_MSG_RPBEFORE;
6238 txn->status = 0;
6239 s->logs.t_data = -1; /* was not a response yet */
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]6240 FLT_STRM_CB(s, flt_http_reset(s, msg));
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]6241 goto next_one;
6242
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6243 case 200:
6244 case 203:
6245 case 206:
6246 case 300:
6247 case 301:
6248 case 410:
6249 /* RFC2616 @13.4:
6250 * "A response received with a status code of
6251 * 200, 203, 206, 300, 301 or 410 MAY be stored
6252 * by a cache (...) unless a cache-control
6253 * directive prohibits caching."
6254 *
6255 * RFC2616 @9.5: POST method :
6256 * "Responses to this method are not cacheable,
6257 * unless the response includes appropriate
6258 * Cache-Control or Expires header fields."
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6259 */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6260 if (likely(txn->meth != HTTP_METH_POST) &&
Willy Tarreau67402132012-05-31 20:40:20 +0200[diff] [blame]6261 ((s->be->options & PR_O_CHK_CACHE) || (s->be->ck_opts & PR_CK_NOC)))
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6262 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
6263 break;
6264 default:
6265 break;
6266 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6267
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6268 /*
6269 * 3: we may need to capture headers
6270 */
6271 s->logs.logwait &= ~LW_RESP;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]6272 if (unlikely((s->logs.logwait & LW_RSPHDR) && s->res_cap))
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6273 capture_headers(rep->buf->p, &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]6274 s->res_cap, sess->fe->rsp_cap);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]6275
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6276 /* 4: determine the transfer-length according to RFC2616 #4.4, updated
6277 * by RFC7230#3.3.3 :
6278 *
6279 * The length of a message body is determined by one of the following
6280 * (in order of precedence):
6281 *
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]6282 * 1. Any 2xx (Successful) response to a CONNECT request implies that
6283 * the connection will become a tunnel immediately after the empty
6284 * line that concludes the header fields. A client MUST ignore
6285 * any Content-Length or Transfer-Encoding header fields received
6286 * in such a message. Any 101 response (Switching Protocols) is
6287 * managed in the same manner.
6288 *
6289 * 2. Any response to a HEAD request and any response with a 1xx
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6290 * (Informational), 204 (No Content), or 304 (Not Modified) status
6291 * code is always terminated by the first empty line after the
6292 * header fields, regardless of the header fields present in the
6293 * message, and thus cannot contain a message body.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6294 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6295 * 3. If a Transfer-Encoding header field is present and the chunked
6296 * transfer coding (Section 4.1) is the final encoding, the message
6297 * body length is determined by reading and decoding the chunked
6298 * data until the transfer coding indicates the data is complete.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6299 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6300 * If a Transfer-Encoding header field is present in a response and
6301 * the chunked transfer coding is not the final encoding, the
6302 * message body length is determined by reading the connection until
6303 * it is closed by the server. If a Transfer-Encoding header field
6304 * is present in a request and the chunked transfer coding is not
6305 * the final encoding, the message body length cannot be determined
6306 * reliably; the server MUST respond with the 400 (Bad Request)
6307 * status code and then close the connection.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6308 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6309 * If a message is received with both a Transfer-Encoding and a
6310 * Content-Length header field, the Transfer-Encoding overrides the
6311 * Content-Length. Such a message might indicate an attempt to
6312 * perform request smuggling (Section 9.5) or response splitting
6313 * (Section 9.4) and ought to be handled as an error. A sender MUST
6314 * remove the received Content-Length field prior to forwarding such
6315 * a message downstream.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6316 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6317 * 4. If a message is received without Transfer-Encoding and with
6318 * either multiple Content-Length header fields having differing
6319 * field-values or a single Content-Length header field having an
6320 * invalid value, then the message framing is invalid and the
6321 * recipient MUST treat it as an unrecoverable error. If this is a
6322 * request message, the server MUST respond with a 400 (Bad Request)
6323 * status code and then close the connection. If this is a response
6324 * message received by a proxy, the proxy MUST close the connection
6325 * to the server, discard the received response, and send a 502 (Bad
6326 * Gateway) response to the client. If this is a response message
6327 * received by a user agent, the user agent MUST close the
6328 * connection to the server and discard the received response.
6329 *
6330 * 5. If a valid Content-Length header field is present without
6331 * Transfer-Encoding, its decimal value defines the expected message
6332 * body length in octets. If the sender closes the connection or
6333 * the recipient times out before the indicated number of octets are
6334 * received, the recipient MUST consider the message to be
6335 * incomplete and close the connection.
6336 *
6337 * 6. If this is a request message and none of the above are true, then
6338 * the message body length is zero (no message body is present).
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6339 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]6340 * 7. Otherwise, this is a response message without a declared message
6341 * body length, so the message body length is determined by the
6342 * number of octets received prior to the server closing the
6343 * connection.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6344 */
6345
6346 /* Skip parsing if no content length is possible. The response flags
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]6347 * remain 0 as well as the chunk_len, which may or may not mirror
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6348 * the real header value, and we note that we know the response's length.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6349 * FIXME: should we parse anyway and return an error on chunked encoding ?
6350 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]6351 if (unlikely((txn->meth == HTTP_METH_CONNECT && txn->status == 200) ||
6352 txn->status == 101)) {
6353 /* Either we've established an explicit tunnel, or we're
6354 * switching the protocol. In both cases, we're very unlikely
6355 * to understand the next protocols. We have to switch to tunnel
6356 * mode, so that we transfer the request and responses then let
6357 * this protocol pass unmodified. When we later implement specific
6358 * parsers for such protocols, we'll want to check the Upgrade
6359 * header which contains information about that protocol for
6360 * responses with status 101 (eg: see RFC2817 about TLS).
6361 */
6362 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_TUN;
6363 msg->flags |= HTTP_MSGF_XFER_LEN;
6364 goto end;
6365 }
6366
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6367 if (txn->meth == HTTP_METH_HEAD ||
6368 (txn->status >= 100 && txn->status < 200) ||
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6369 txn->status == 204 || txn->status == 304) {
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6370 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6371 goto skip_content_length;
6372 }
6373
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6374 use_close_only = 0;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6375 ctx.idx = 0;
Willy Tarreau4979d5c2015-05-01 10:06:30 +0200[diff] [blame]6376 while (http_find_header2("Transfer-Encoding", 17, rep->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6377 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6378 msg->flags |= (HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
6379 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6380 /* bad transfer-encoding (chunked followed by something else) */
6381 use_close_only = 1;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6382 msg->flags &= ~(HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]6383 break;
6384 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6385 }
6386
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]6387 /* Chunked responses must have their content-length removed */
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6388 ctx.idx = 0;
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]6389 if (use_close_only || (msg->flags & HTTP_MSGF_TE_CHNK)) {
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]6390 while (http_find_header2("Content-Length", 14, rep->buf->p, &txn->hdr_idx, &ctx))
6391 http_remove_header2(msg, &txn->hdr_idx, &ctx);
6392 }
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]6393 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]6394 signed long long cl;
6395
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6396 if (!ctx.vlen) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6397 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6398 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6399 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6400
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6401 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6402 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6403 goto hdr_response_bad; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6404 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6405
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6406 if (cl < 0) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6407 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6408 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6409 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6410
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6411 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6412 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6413 goto hdr_response_bad; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]6414 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6415
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6416 msg->flags |= HTTP_MSGF_CNT_LEN | HTTP_MSGF_XFER_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]6417 msg->body_len = msg->chunk_len = cl;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]6418 }
6419
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]6420 skip_content_length:
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6421 /* Now we have to check if we need to modify the Connection header.
6422 * This is more difficult on the response than it is on the request,
6423 * because we can have two different HTTP versions and we don't know
6424 * how the client will interprete a response. For instance, let's say
6425 * that the client sends a keep-alive request in HTTP/1.0 and gets an
6426 * HTTP/1.1 response without any header. Maybe it will bound itself to
6427 * HTTP/1.0 because it only knows about it, and will consider the lack
6428 * of header as a close, or maybe it knows HTTP/1.1 and can consider
6429 * the lack of header as a keep-alive. Thus we will use two flags
6430 * indicating how a request MAY be understood by the client. In case
6431 * of multiple possibilities, we'll fix the header to be explicit. If
6432 * ambiguous cases such as both close and keepalive are seen, then we
6433 * will fall back to explicit close. Note that we won't take risks with
6434 * HTTP/1.0 clients which may not necessarily understand keep-alive.
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6435 * See doc/internals/connection-header.txt for the complete matrix.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6436 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]6437 if ((txn->status >= 200) && !(txn->flags & TX_HDR_CONN_PRS) &&
6438 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN ||
6439 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
6440 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6441 int to_del = 0;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6442
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]6443 /* this situation happens when combining pretend-keepalive with httpclose. */
6444 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6445 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6446 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]6447 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
6448
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6449 /* on unknown transfer length, we must close */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6450 if (!(msg->flags & HTTP_MSGF_XFER_LEN) &&
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6451 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
6452 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6453
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6454 /* now adjust header transformations depending on current state */
6455 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN ||
6456 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
6457 to_del |= 2; /* remove "keep-alive" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6458 if (!(msg->flags & HTTP_MSGF_VER_11))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6459 to_del |= 1; /* remove "close" for HTTP/1.0 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6460 }
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6461 else { /* SCL / KAL */
6462 to_del |= 1; /* remove "close" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6463 if (txn->req.flags & msg->flags & HTTP_MSGF_VER_11)
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6464 to_del |= 2; /* remove "keep-alive" on pure 1.1 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6465 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6466
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6467 /* Parse and remove some headers from the connection header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]6468 http_parse_connection_header(txn, msg, to_del);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6469
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6470 /* Some keep-alive responses are converted to Server-close if
6471 * the server wants to close.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6472 */
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6473 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL) {
6474 if ((txn->flags & TX_HDR_CONN_CLO) ||
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]6475 (!(txn->flags & TX_HDR_CONN_KAL) && !(msg->flags & HTTP_MSGF_VER_11)))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6476 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_SCL;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]6477 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]6478 }
6479
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]6480 end:
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]6481 /* we want to have the response time before we start processing it */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6482 s->logs.t_data = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]6483
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6484 /* end of job, return OK */
6485 rep->analysers &= ~an_bit;
6486 rep->analyse_exp = TICK_ETERNITY;
6487 channel_auto_close(rep);
6488 return 1;
6489
6490 abort_keep_alive:
6491 /* A keep-alive request to the server failed on a network error.
6492 * The client is required to retry. We need to close without returning
6493 * any other information so that the client retries.
6494 */
6495 txn->status = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6496 rep->analysers &= AN_RES_FLT_END;
6497 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6498 channel_auto_close(rep);
6499 s->logs.logwait = 0;
6500 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6501 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]6502 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6503 http_reply_and_close(s, txn->status, NULL);
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6504 return 0;
6505}
6506
6507/* This function performs all the processing enabled for the current response.
6508 * It normally returns 1 unless it wants to break. It relies on buffers flags,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6509 * and updates s->res.analysers. It might make sense to explode it into several
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6510 * other functions. It works like process_request (see indications above).
6511 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6512int 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]6513{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]6514 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6515 struct http_txn *txn = s->txn;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6516 struct http_msg *msg = &txn->rsp;
6517 struct proxy *cur_proxy;
6518 struct cond_wordlist *wl;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]6519 enum rule_result ret = HTTP_RULE_RES_CONT;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]6520
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6521 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]6522 now_ms, __FUNCTION__,
6523 s,
6524 rep,
6525 rep->rex, rep->wex,
6526 rep->flags,
6527 rep->buf->i,
6528 rep->analysers);
6529
6530 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) /* we need more data */
6531 return 0;
6532
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]6533 /* The stats applet needs to adjust the Connection header but we don't
6534 * apply any filter there.
6535 */
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]6536 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
6537 rep->analysers &= ~an_bit;
6538 rep->analyse_exp = TICK_ETERNITY;
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]6539 goto skip_filters;
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]6540 }
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]6541
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6542 /*
6543 * We will have to evaluate the filters.
6544 * As opposed to version 1.2, now they will be evaluated in the
6545 * filters order and not in the header order. This means that
6546 * each filter has to be validated among all headers.
6547 *
6548 * Filters are tried with ->be first, then with ->fe if it is
6549 * different from ->be.
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]6550 *
6551 * Maybe we are in resume condiion. In this case I choose the
6552 * "struct proxy" which contains the rule list matching the resume
6553 * pointer. If none of theses "struct proxy" match, I initialise
6554 * the process with the first one.
6555 *
6556 * In fact, I check only correspondance betwwen the current list
6557 * pointer and the ->fe rule list. If it doesn't match, I initialize
6558 * the loop with the ->be.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6559 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6560 if (s->current_rule_list == &sess->fe->http_res_rules)
6561 cur_proxy = sess->fe;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]6562 else
6563 cur_proxy = s->be;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6564 while (1) {
6565 struct proxy *rule_set = cur_proxy;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6566
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6567 /* evaluate http-response rules */
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]6568 if (ret == HTTP_RULE_RES_CONT) {
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]6569 ret = http_res_get_intercept_rule(cur_proxy, &cur_proxy->http_res_rules, s);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]6570
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]6571 if (ret == HTTP_RULE_RES_BADREQ)
6572 goto return_srv_prx_502;
6573
6574 if (ret == HTTP_RULE_RES_DONE) {
6575 rep->analysers &= ~an_bit;
6576 rep->analyse_exp = TICK_ETERNITY;
6577 return 1;
6578 }
6579 }
6580
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]6581 /* we need to be called again. */
6582 if (ret == HTTP_RULE_RES_YIELD) {
6583 channel_dont_close(rep);
6584 return 0;
6585 }
6586
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6587 /* try headers filters */
6588 if (rule_set->rsp_exp != NULL) {
6589 if (apply_filters_to_response(s, rep, rule_set) < 0) {
6590 return_bad_resp:
6591 if (objt_server(s->target)) {
6592 objt_server(s->target)->counters.failed_resp++;
6593 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_RSP);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]6594 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6595 s->be->be_counters.failed_resp++;
6596 return_srv_prx_502:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6597 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6598 txn->status = 502;
6599 s->logs.t_data = -1; /* was not a valid response */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]6600 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]6601 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6602 http_reply_and_close(s, txn->status, http_error_message(s, HTTP_ERR_502));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6603 if (!(s->flags & SF_ERR_MASK))
6604 s->flags |= SF_ERR_PRXCOND;
6605 if (!(s->flags & SF_FINST_MASK))
6606 s->flags |= SF_FINST_H;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6607 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6608 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6609 }
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]6610
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6611 /* has the response been denied ? */
6612 if (txn->flags & TX_SVDENY) {
6613 if (objt_server(s->target))
6614 objt_server(s->target)->counters.failed_secu++;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]6615
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6616 s->be->be_counters.denied_resp++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6617 sess->fe->fe_counters.denied_resp++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]6618 if (sess->listener->counters)
6619 sess->listener->counters->denied_resp++;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6620
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6621 goto return_srv_prx_502;
6622 }
Willy Tarreau0bbc3cf2006-10-15 14:26:02 +0200[diff] [blame]6623
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6624 /* add response headers from the rule sets in the same order */
6625 list_for_each_entry(wl, &rule_set->rsp_add, list) {
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]6626 if (txn->status < 200 && txn->status != 101)
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6627 break;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6628 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6629 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]6630 ret = acl_pass(ret);
6631 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
6632 ret = !ret;
6633 if (!ret)
6634 continue;
6635 }
6636 if (unlikely(http_header_add_tail(&txn->rsp, &txn->hdr_idx, wl->s) < 0))
6637 goto return_bad_resp;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6638 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6639
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6640 /* check whether we're already working on the frontend */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6641 if (cur_proxy == sess->fe)
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6642 break;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6643 cur_proxy = sess->fe;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6644 }
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]6645
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]6646 /* After this point, this anayzer can't return yield, so we can
6647 * remove the bit corresponding to this analyzer from the list.
6648 *
6649 * Note that the intermediate returns and goto found previously
6650 * reset the analyzers.
6651 */
6652 rep->analysers &= ~an_bit;
6653 rep->analyse_exp = TICK_ETERNITY;
6654
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6655 /* OK that's all we can do for 1xx responses */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]6656 if (unlikely(txn->status < 200 && txn->status != 101))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6657 goto skip_header_mangling;
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]6658
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6659 /*
6660 * Now check for a server cookie.
6661 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]6662 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]6663 manage_server_side_cookies(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6664
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6665 /*
6666 * Check for cache-control or pragma headers if required.
6667 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]6668 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]6669 check_response_for_cacheability(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6670
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6671 /*
6672 * Add server cookie in the response if needed
6673 */
6674 if (objt_server(s->target) && (s->be->ck_opts & PR_CK_INS) &&
6675 !((txn->flags & TX_SCK_FOUND) && (s->be->ck_opts & PR_CK_PSV)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6676 (!(s->flags & SF_DIRECT) ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6677 ((s->be->cookie_maxidle || txn->cookie_last_date) &&
6678 (!txn->cookie_last_date || (txn->cookie_last_date - date.tv_sec) < 0)) ||
6679 (s->be->cookie_maxlife && !txn->cookie_first_date) || // set the first_date
6680 (!s->be->cookie_maxlife && txn->cookie_first_date)) && // remove the first_date
6681 (!(s->be->ck_opts & PR_CK_POST) || (txn->meth == HTTP_METH_POST)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6682 !(s->flags & SF_IGNORE_PRST)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6683 /* the server is known, it's not the one the client requested, or the
6684 * cookie's last seen date needs to be refreshed. We have to
6685 * insert a set-cookie here, except if we want to insert only on POST
6686 * requests and this one isn't. Note that servers which don't have cookies
6687 * (eg: some backup servers) will return a full cookie removal request.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6688 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6689 if (!objt_server(s->target)->cookie) {
6690 chunk_printf(&trash,
6691 "Set-Cookie: %s=; Expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/",
6692 s->be->cookie_name);
6693 }
6694 else {
6695 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]6696
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6697 if (s->be->cookie_maxidle || s->be->cookie_maxlife) {
6698 /* emit last_date, which is mandatory */
6699 trash.str[trash.len++] = COOKIE_DELIM_DATE;
6700 s30tob64((date.tv_sec+3) >> 2, trash.str + trash.len);
6701 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6702
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6703 if (s->be->cookie_maxlife) {
6704 /* emit first_date, which is either the original one or
6705 * the current date.
6706 */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6707 trash.str[trash.len++] = COOKIE_DELIM_DATE;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6708 s30tob64(txn->cookie_first_date ?
6709 txn->cookie_first_date >> 2 :
6710 (date.tv_sec+3) >> 2, trash.str + trash.len);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6711 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6712 }
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6713 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6714 chunk_appendf(&trash, "; path=/");
6715 }
Willy Tarreau4992dd22012-05-31 21:02:17 +0200[diff] [blame]6716
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6717 if (s->be->cookie_domain)
6718 chunk_appendf(&trash, "; domain=%s", s->be->cookie_domain);
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6719
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6720 if (s->be->ck_opts & PR_CK_HTTPONLY)
6721 chunk_appendf(&trash, "; HttpOnly");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6722
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6723 if (s->be->ck_opts & PR_CK_SECURE)
6724 chunk_appendf(&trash, "; Secure");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6725
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6726 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx, trash.str, trash.len) < 0))
6727 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6728
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6729 txn->flags &= ~TX_SCK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6730 if (objt_server(s->target)->cookie && (s->flags & SF_DIRECT))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6731 /* the server did not change, only the date was updated */
6732 txn->flags |= TX_SCK_UPDATED;
6733 else
6734 txn->flags |= TX_SCK_INSERTED;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6735
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6736 /* Here, we will tell an eventual cache on the client side that we don't
6737 * want it to cache this reply because HTTP/1.0 caches also cache cookies !
6738 * Some caches understand the correct form: 'no-cache="set-cookie"', but
6739 * others don't (eg: apache <= 1.3.26). So we use 'private' instead.
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6740 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6741 if ((s->be->ck_opts & PR_CK_NOC) && (txn->flags & TX_CACHEABLE)) {
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6742
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6743 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]6744
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6745 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx,
6746 "Cache-control: private", 22) < 0))
6747 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6748 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6749 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6750
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6751 /*
6752 * Check if result will be cacheable with a cookie.
6753 * We'll block the response if security checks have caught
6754 * nasty things such as a cacheable cookie.
6755 */
6756 if (((txn->flags & (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) ==
6757 (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) &&
6758 (s->be->options & PR_O_CHK_CACHE)) {
6759 /* we're in presence of a cacheable response containing
6760 * a set-cookie header. We'll block it as requested by
6761 * the 'checkcache' option, and send an alert.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6762 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6763 if (objt_server(s->target))
6764 objt_server(s->target)->counters.failed_secu++;
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]6765
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6766 s->be->be_counters.denied_resp++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6767 sess->fe->fe_counters.denied_resp++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]6768 if (sess->listener->counters)
6769 sess->listener->counters->denied_resp++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6770
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6771 Alert("Blocking cacheable cookie in response from instance %s, server %s.\n",
6772 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
6773 send_log(s->be, LOG_ALERT,
6774 "Blocking cacheable cookie in response from instance %s, server %s.\n",
6775 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
6776 goto return_srv_prx_502;
6777 }
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]6778
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]6779 skip_filters:
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6780 /*
6781 * Adjust "Connection: close" or "Connection: keep-alive" if needed.
6782 * If an "Upgrade" token is found, the header is left untouched in order
6783 * 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]6784 * if anything but "Upgrade" is present in the Connection header. We don't
6785 * want to touch any 101 response either since it's switching to another
6786 * protocol.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6787 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]6788 if ((txn->status != 101) && !(txn->flags & TX_HDR_CONN_UPG) &&
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6789 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6790 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6791 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
6792 unsigned int want_flags = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]6793
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6794 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6795 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
6796 /* we want a keep-alive response here. Keep-alive header
6797 * required if either side is not 1.1.
6798 */
6799 if (!(txn->req.flags & msg->flags & HTTP_MSGF_VER_11))
6800 want_flags |= TX_CON_KAL_SET;
6801 }
6802 else {
6803 /* we want a close response here. Close header required if
6804 * the server is 1.1, regardless of the client.
6805 */
6806 if (msg->flags & HTTP_MSGF_VER_11)
6807 want_flags |= TX_CON_CLO_SET;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6808 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6809
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6810 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
6811 http_change_connection_header(txn, msg, want_flags);
6812 }
6813
6814 skip_header_mangling:
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]6815 if ((msg->flags & HTTP_MSGF_XFER_LEN) || HAS_FILTERS(s) ||
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6816 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6817 rep->analysers &= ~AN_RES_FLT_XFER_DATA;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6818 rep->analysers |= AN_RES_HTTP_XFER_BODY;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6819 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6820
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6821 /* if the user wants to log as soon as possible, without counting
6822 * bytes from the server, then this is the right moment. We have
6823 * to temporarily assign bytes_out to log what we currently have.
6824 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6825 if (!LIST_ISEMPTY(&sess->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]6826 s->logs.t_close = s->logs.t_data; /* to get a valid end date */
6827 s->logs.bytes_out = txn->rsp.eoh;
6828 s->do_log(s);
6829 s->logs.bytes_out = 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6830 }
Willy Tarreaue3fa6e52010-01-04 22:57:43 +0100[diff] [blame]6831 return 1;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]6832}
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6833
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6834/* This function is an analyser which forwards response body (including chunk
6835 * sizes if any). It is called as soon as we must forward, even if we forward
6836 * zero byte. The only situation where it must not be called is when we're in
6837 * tunnel mode and we want to forward till the close. It's used both to forward
6838 * remaining data and to resync after end of body. It expects the msg_state to
6839 * 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]6840 * 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]6841 *
6842 * It is capable of compressing response data both in content-length mode and
6843 * in chunked mode. The state machines follows different flows depending on
6844 * whether content-length and chunked modes are used, since there are no
6845 * trailers in content-length :
6846 *
6847 * chk-mode cl-mode
6848 * ,----- BODY -----.
6849 * / \
6850 * V size > 0 V chk-mode
6851 * .--> SIZE -------------> DATA -------------> CRLF
6852 * | | size == 0 | last byte |
6853 * | v final crlf v inspected |
6854 * | TRAILERS -----------> DONE |
6855 * | |
6856 * `----------------------------------------------'
6857 *
6858 * Compression only happens in the DATA state, and must be flushed in final
6859 * states (TRAILERS/DONE) or when leaving on missing data. Normal forwarding
6860 * is performed at once on final states for all bytes parsed, or when leaving
6861 * on missing data.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6862 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6863int http_response_forward_body(struct stream *s, struct channel *res, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6864{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6865 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6866 struct http_txn *txn = s->txn;
6867 struct http_msg *msg = &s->txn->rsp;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]6868 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6869
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6870 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
6871 return 0;
6872
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6873 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]6874 ((res->flags & CF_SHUTW) && (res->to_forward || res->buf->o)) ||
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6875 !s->req.analysers) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6876 /* Output closed while we were sending data. We must abort and
6877 * wake the other side up.
6878 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6879 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6880 msg->msg_state = HTTP_MSG_ERROR;
6881 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]6882 return 1;
6883 }
6884
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]6885 /* in most states, we should abort in case of early close */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6886 channel_auto_close(res);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]6887
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6888 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6889 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
6890 ? HTTP_MSG_CHUNK_SIZE
6891 : HTTP_MSG_DATA);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6892 }
6893
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6894 if (res->to_forward) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6895 /* We can't process the buffer's contents yet */
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6896 res->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6897 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]6898 }
6899
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6900 if (msg->msg_state < HTTP_MSG_DONE) {
6901 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
6902 ? http_msg_forward_chunked_body(s, msg)
6903 : http_msg_forward_body(s, msg));
6904 if (!ret)
6905 goto missing_data_or_waiting;
6906 if (ret < 0)
6907 goto return_bad_res;
6908 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]6909
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6910 /* other states, DONE...TUNNEL */
6911 /* for keep-alive we don't want to forward closes on DONE */
6912 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6913 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
6914 channel_dont_close(res);
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]6915
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6916 if (http_resync_states(s)) {
6917 /* some state changes occurred, maybe the analyser was disabled
6918 * too. */
6919 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
6920 if (res->flags & CF_SHUTW) {
6921 /* response errors are most likely due to the
6922 * client aborting the transfer. */
6923 goto aborted_xfer;
Willy Tarreau5523b322009-12-29 12:05:52 +0100[diff] [blame]6924 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6925 if (msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6926 http_capture_bad_message(&s->be->invalid_rep, s, msg, msg->err_state, strm_fe(s));
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6927 goto return_bad_res;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6928 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6929 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6930 }
Willy Tarreauf51d03c2016-05-02 15:25:15 +0200[diff] [blame]6931 return 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6932
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6933 missing_data_or_waiting:
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6934 if (res->flags & CF_SHUTW)
6935 goto aborted_xfer;
6936
6937 /* stop waiting for data if the input is closed before the end. If the
6938 * client side was already closed, it means that the client has aborted,
6939 * so we don't want to count this as a server abort. Otherwise it's a
6940 * server abort.
6941 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6942 if (res->flags & CF_SHUTR) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6943 if ((s->req.flags & (CF_SHUTR|CF_SHUTW)) == (CF_SHUTR|CF_SHUTW))
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]6944 goto aborted_xfer;
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]6945 /* If we have some pending data, we continue the processing */
6946 if (!buffer_pending(res->buf)) {
6947 if (!(s->flags & SF_ERR_MASK))
6948 s->flags |= SF_ERR_SRVCL;
6949 s->be->be_counters.srv_aborts++;
6950 if (objt_server(s->target))
6951 objt_server(s->target)->counters.srv_aborts++;
6952 goto return_bad_res_stats_ok;
6953 }
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6954 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]6955
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6956 /* we need to obey the req analyser, so if it leaves, we must too */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]6957 if (!s->req.analysers)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]6958 goto return_bad_res;
6959
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6960 /* When TE: chunked is used, we need to get there again to parse
6961 * remaining chunks even if the server has closed, so we don't want to
6962 * set CF_DONTCLOSE. Similarly, if the body length is undefined, if
6963 * keep-alive is set on the client side or if there are filters
6964 * registered on the stream, we don't want to forward a close
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6965 */
Christopher Faulet92d36382015-11-05 13:35:03 +0100[diff] [blame]6966 if ((msg->flags & HTTP_MSGF_TE_CHNK) || !msg->body_len ||
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6967 HAS_FILTERS(s) ||
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6968 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
6969 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]6970 channel_dont_close(res);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]6971
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6972 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6973 * 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]6974 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]6975 * modes are already handled by the stream sock layer. We must not do
6976 * this in content-length mode because it could present the MSG_MORE
6977 * flag with the last block of forwarded data, which would cause an
6978 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6979 */
Christopher Faulet92d36382015-11-05 13:35:03 +0100[diff] [blame]6980 if ((msg->flags & HTTP_MSGF_TE_CHNK) || (msg->flags & HTTP_MSGF_COMPRESSING))
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]6981 res->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]6982
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6983 /* the stream handler will take care of timeouts and errors */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6984 return 0;
6985
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]6986 return_bad_res: /* let's centralize all bad responses */
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]6987 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6988 if (objt_server(s->target))
6989 objt_server(s->target)->counters.failed_resp++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6990
6991 return_bad_res_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6992 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6993 txn->rsp.msg_state = HTTP_MSG_ERROR;
Willy Tarreau148d0992010-01-10 10:21:21 +0100[diff] [blame]6994 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6995 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6996 res->analysers &= AN_RES_FLT_END;
6997 s->req.analysers &= AN_REQ_FLT_END; /* we're in data phase, we want to abort both directions */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6998 if (objt_server(s->target))
6999 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]7000
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7001 if (!(s->flags & SF_ERR_MASK))
7002 s->flags |= SF_ERR_PRXCOND;
7003 if (!(s->flags & SF_FINST_MASK))
7004 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]7005 return 0;
7006
7007 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]7008 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]7009 txn->rsp.msg_state = HTTP_MSG_ERROR;
7010 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]7011 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]7012 res->analysers &= AN_RES_FLT_END;
7013 s->req.analysers &= AN_REQ_FLT_END; /* we're in data phase, we want to abort both directions */
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]7014
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7015 sess->fe->fe_counters.cli_aborts++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]7016 s->be->be_counters.cli_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]7017 if (objt_server(s->target))
7018 objt_server(s->target)->counters.cli_aborts++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]7019
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7020 if (!(s->flags & SF_ERR_MASK))
7021 s->flags |= SF_ERR_CLICL;
7022 if (!(s->flags & SF_FINST_MASK))
7023 s->flags |= SF_FINST_D;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]7024 return 0;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7025}
7026
7027
7028static inline int
7029http_msg_forward_body(struct stream *s, struct http_msg *msg)
7030{
7031 struct channel *chn = msg->chn;
7032 int ret;
7033
7034 /* Here we have the guarantee to be in HTTP_MSG_DATA or HTTP_MSG_ENDING state */
7035
7036 if (msg->msg_state == HTTP_MSG_ENDING)
7037 goto ending;
7038
7039 /* Neither content-length, nor transfer-encoding was found, so we must
7040 * read the body until the server connection is closed. In that case, we
7041 * eat data as they come. Of course, this happens for response only. */
7042 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
7043 unsigned long long len = (chn->buf->i - msg->next);
7044 msg->chunk_len += len;
7045 msg->body_len += len;
7046 }
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]7047 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
7048 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
7049 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7050 msg->next += ret;
7051 msg->chunk_len -= ret;
7052 if (msg->chunk_len) {
7053 /* input empty or output full */
7054 if (chn->buf->i > msg->next)
7055 chn->flags |= CF_WAKE_WRITE;
7056 goto missing_data_or_waiting;
7057 }
7058
Christopher Faulet32359572016-11-29 14:49:54 +0100[diff] [blame]7059 if (!(msg->flags & HTTP_MSGF_XFER_LEN) && !(chn->flags & CF_SHUTR) &&
7060 HAS_DATA_FILTERS(s, chn)) {
7061 /* The server still sending data that should be filtered */
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7062 goto missing_data_or_waiting;
7063 }
7064 msg->msg_state = HTTP_MSG_ENDING;
7065
7066 ending:
7067 /* we may have some pending data starting at res->buf->p such as a last
7068 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]7069 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
7070 /* default_ret */ msg->next,
7071 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7072 b_adv(chn->buf, ret);
7073 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]7074 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
7075 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]7076 if (msg->next)
7077 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]7078
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]7079 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
7080 /* default_ret */ 1,
7081 /* on_error */ goto error,
7082 /* on_wait */ goto waiting);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7083 msg->msg_state = HTTP_MSG_DONE;
7084 return 1;
7085
7086 missing_data_or_waiting:
7087 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]7088 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
7089 /* default_ret */ msg->next,
7090 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7091 b_adv(chn->buf, ret);
7092 msg->next -= ret;
7093 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
7094 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]7095 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7096 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]7097 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7098 return 0;
7099 error:
7100 return -1;
7101}
7102
7103static inline int
7104http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg)
7105{
7106 struct channel *chn = msg->chn;
7107 int ret;
7108
7109 /* Here we have the guarantee to be in one of the following state:
7110 * HTTP_MSG_DATA, HTTP_MSG_CHUNK_SIZE, HTTP_MSG_CHUNK_CRLF,
7111 * HTTP_MSG_TRAILERS or HTTP_MSG_ENDING. */
7112
7113 switch_states:
7114 switch (msg->msg_state) {
7115 case HTTP_MSG_DATA:
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]7116 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
7117 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
7118 /* on_error */ goto error);
7119 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7120 msg->chunk_len -= ret;
7121 if (msg->chunk_len) {
7122 /* input empty or output full */
7123 if (chn->buf->i > msg->next)
7124 chn->flags |= CF_WAKE_WRITE;
7125 goto missing_data_or_waiting;
7126 }
7127
7128 /* nothing left to forward for this chunk*/
7129 msg->msg_state = HTTP_MSG_CHUNK_CRLF;
7130 /* fall through for HTTP_MSG_CHUNK_CRLF */
7131
7132 case HTTP_MSG_CHUNK_CRLF:
7133 /* we want the CRLF after the data */
7134 ret = http_skip_chunk_crlf(msg);
7135 if (ret == 0)
7136 goto missing_data_or_waiting;
7137 if (ret < 0)
7138 goto chunk_parsing_error;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]7139 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7140 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
7141 /* fall through for HTTP_MSG_CHUNK_SIZE */
7142
7143 case HTTP_MSG_CHUNK_SIZE:
7144 /* read the chunk size and assign it to ->chunk_len,
7145 * then set ->next to point to the body and switch to
7146 * DATA or TRAILERS state.
7147 */
7148 ret = http_parse_chunk_size(msg);
7149 if (ret == 0)
7150 goto missing_data_or_waiting;
7151 if (ret < 0)
7152 goto chunk_parsing_error;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]7153 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7154 if (msg->chunk_len) {
7155 msg->msg_state = HTTP_MSG_DATA;
7156 goto switch_states;
7157 }
7158 msg->msg_state = HTTP_MSG_TRAILERS;
7159 /* fall through for HTTP_MSG_TRAILERS */
7160
7161 case HTTP_MSG_TRAILERS:
7162 ret = http_forward_trailers(msg);
7163 if (ret < 0)
7164 goto chunk_parsing_error;
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]7165 FLT_STRM_DATA_CB(s, chn, flt_http_chunk_trailers(s, msg),
7166 /* default_ret */ 1,
7167 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7168 msg->next += msg->sol;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7169 if (!ret)
7170 goto missing_data_or_waiting;
7171 break;
7172
7173 case HTTP_MSG_ENDING:
7174 goto ending;
7175
7176 default:
7177 /* This should no happen in this function */
7178 goto error;
7179 }
7180
7181 msg->msg_state = HTTP_MSG_ENDING;
7182 ending:
7183 /* we may have some pending data starting at res->buf->p such as a last
7184 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]7185 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]7186 /* default_ret */ msg->next,
7187 /* on_error */ goto error);
7188 b_adv(chn->buf, ret);
7189 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]7190 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
7191 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]7192 if (msg->next)
7193 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]7194
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]7195 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7196 /* default_ret */ 1,
7197 /* on_error */ goto error,
7198 /* on_wait */ goto waiting);
7199 msg->msg_state = HTTP_MSG_DONE;
7200 return 1;
7201
7202 missing_data_or_waiting:
7203 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]7204 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]7205 /* default_ret */ msg->next,
7206 /* on_error */ goto error);
7207 b_adv(chn->buf, ret);
7208 msg->next -= ret;
7209 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
7210 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]7211 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7212 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]7213 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7214 return 0;
7215
7216 chunk_parsing_error:
7217 if (msg->err_pos >= 0) {
7218 if (chn->flags & CF_ISRESP)
7219 http_capture_bad_message(&s->be->invalid_rep, s, msg,
7220 msg->msg_state, strm_fe(s));
7221 else
7222 http_capture_bad_message(&strm_fe(s)->invalid_req, s,
7223 msg, msg->msg_state, s->be);
7224 }
7225 error:
7226 return -1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]7227}
7228
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]7229
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7230/* Iterate the same filter through all request headers.
7231 * Returns 1 if this filter can be stopped upon return, otherwise 0.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7232 * Since it can manage the switch to another backend, it updates the per-proxy
7233 * DENY stats.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7234 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7235int 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]7236{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7237 char *cur_ptr, *cur_end, *cur_next;
7238 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7239 struct http_txn *txn = s->txn;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7240 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7241 int delta;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100[diff] [blame]7242
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7243 last_hdr = 0;
7244
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7245 cur_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7246 old_idx = 0;
7247
7248 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7249 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7250 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7251 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7252 (exp->action == ACT_ALLOW ||
7253 exp->action == ACT_DENY ||
7254 exp->action == ACT_TARPIT))
7255 return 0;
7256
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7257 cur_idx = txn->hdr_idx.v[old_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7258 if (!cur_idx)
7259 break;
7260
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7261 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7262 cur_ptr = cur_next;
7263 cur_end = cur_ptr + cur_hdr->len;
7264 cur_next = cur_end + cur_hdr->cr + 1;
7265
7266 /* Now we have one header between cur_ptr and cur_end,
7267 * and the next header starts at cur_next.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7268 */
7269
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7270 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]7271 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7272 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7273 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7274 last_hdr = 1;
7275 break;
7276
7277 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7278 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7279 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7280 break;
7281
7282 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7283 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7284 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7285 break;
7286
7287 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7288 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7289 if (trash.len < 0)
7290 return -1;
7291
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7292 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7293 /* FIXME: if the user adds a newline in the replacement, the
7294 * index will not be recalculated for now, and the new line
7295 * will not be counted as a new header.
7296 */
7297
7298 cur_end += delta;
7299 cur_next += delta;
7300 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7301 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7302 break;
7303
7304 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7305 delta = buffer_replace2(req->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7306 cur_next += delta;
7307
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7308 http_msg_move_end(&txn->req, delta);
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7309 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7310 txn->hdr_idx.used--;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7311 cur_hdr->len = 0;
7312 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7313 cur_idx = old_idx;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7314 break;
7315
7316 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7317 }
7318
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7319 /* keep the link from this header to next one in case of later
7320 * removal of next header.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7321 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7322 old_idx = cur_idx;
7323 }
7324 return 0;
7325}
7326
7327
7328/* Apply the filter to the request line.
7329 * Returns 0 if nothing has been done, 1 if the filter has been applied,
7330 * or -1 if a replacement resulted in an invalid request line.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7331 * Since it can manage the switch to another backend, it updates the per-proxy
7332 * DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7333 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7334int 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]7335{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7336 char *cur_ptr, *cur_end;
7337 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7338 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7339 int delta;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7340
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7341 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7342 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7343 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7344 (exp->action == ACT_ALLOW ||
7345 exp->action == ACT_DENY ||
7346 exp->action == ACT_TARPIT))
7347 return 0;
7348 else if (exp->action == ACT_REMOVE)
7349 return 0;
7350
7351 done = 0;
7352
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7353 cur_ptr = req->buf->p;
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7354 cur_end = cur_ptr + txn->req.sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7355
7356 /* Now we have the request line between cur_ptr and cur_end */
7357
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7358 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]7359 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7360 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7361 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7362 done = 1;
7363 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]7364
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7365 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7366 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7367 done = 1;
7368 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]7369
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7370 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7371 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7372 done = 1;
7373 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]7374
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7375 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7376 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7377 if (trash.len < 0)
7378 return -1;
7379
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7380 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7381 /* FIXME: if the user adds a newline in the replacement, the
7382 * index will not be recalculated for now, and the new line
7383 * will not be counted as a new header.
7384 */
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]7385
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7386 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7387 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7388 cur_end = (char *)http_parse_reqline(&txn->req,
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7389 HTTP_MSG_RQMETH,
7390 cur_ptr, cur_end + 1,
7391 NULL, NULL);
7392 if (unlikely(!cur_end))
7393 return -1;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]7394
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7395 /* we have a full request and we know that we have either a CR
7396 * or an LF at <ptr>.
7397 */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7398 txn->meth = find_http_meth(cur_ptr, txn->req.sl.rq.m_l);
7399 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]7400 /* there is no point trying this regex on headers */
7401 return 1;
7402 }
7403 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7404 return done;
7405}
Willy Tarreau97de6242006-12-27 17:18:38 +0100[diff] [blame]7406
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7407
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7408
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7409/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7410 * 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]7411 * 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]7412 * unparsable request. Since it can manage the switch to another backend, it
7413 * updates the per-proxy DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7414 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7415int apply_filters_to_request(struct stream *s, struct channel *req, struct proxy *px)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7416{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7417 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7418 struct http_txn *txn = s->txn;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]7419 struct hdr_exp *exp;
7420
7421 for (exp = px->req_exp; exp; exp = exp->next) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7422 int ret;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7423
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7424 /*
7425 * The interleaving of transformations and verdicts
7426 * makes it difficult to decide to continue or stop
7427 * the evaluation.
7428 */
7429
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]7430 if (txn->flags & (TX_CLDENY|TX_CLTARPIT))
7431 break;
7432
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7433 if ((txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7434 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]7435 exp->action == ACT_TARPIT || exp->action == ACT_PASS))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7436 continue;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]7437
7438 /* if this filter had a condition, evaluate it now and skip to
7439 * next filter if the condition does not match.
7440 */
7441 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7442 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]7443 ret = acl_pass(ret);
7444 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
7445 ret = !ret;
7446
7447 if (!ret)
7448 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7449 }
7450
7451 /* Apply the filter to the request line. */
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]7452 ret = apply_filter_to_req_line(s, req, exp);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7453 if (unlikely(ret < 0))
7454 return -1;
7455
7456 if (likely(ret == 0)) {
7457 /* The filter did not match the request, it can be
7458 * iterated through all headers.
7459 */
Willy Tarreau34d4c3c2015-01-30 20:58:58 +0100[diff] [blame]7460 if (unlikely(apply_filter_to_req_headers(s, req, exp) < 0))
7461 return -1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7462 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7463 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7464 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7465}
7466
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]7467
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7468/* Find the end of a cookie value contained between <s> and <e>. It works the
7469 * same way as with headers above except that the semi-colon also ends a token.
7470 * See RFC2965 for more information. Note that it requires a valid header to
7471 * return a valid result.
7472 */
7473char *find_cookie_value_end(char *s, const char *e)
7474{
7475 int quoted, qdpair;
7476
7477 quoted = qdpair = 0;
7478 for (; s < e; s++) {
7479 if (qdpair) qdpair = 0;
7480 else if (quoted) {
7481 if (*s == '\\') qdpair = 1;
7482 else if (*s == '"') quoted = 0;
7483 }
7484 else if (*s == '"') quoted = 1;
7485 else if (*s == ',' || *s == ';') return s;
7486 }
7487 return s;
7488}
7489
7490/* Delete a value in a header between delimiters <from> and <next> in buffer
7491 * <buf>. The number of characters displaced is returned, and the pointer to
7492 * the first delimiter is updated if required. The function tries as much as
7493 * possible to respect the following principles :
7494 * - replace <from> delimiter by the <next> one unless <from> points to a
7495 * colon, in which case <next> is simply removed
7496 * - set exactly one space character after the new first delimiter, unless
7497 * there are not enough characters in the block being moved to do so.
7498 * - remove unneeded spaces before the previous delimiter and after the new
7499 * one.
7500 *
7501 * It is the caller's responsibility to ensure that :
7502 * - <from> points to a valid delimiter or the colon ;
7503 * - <next> points to a valid delimiter or the final CR/LF ;
7504 * - there are non-space chars before <from> ;
7505 * - there is a CR/LF at or after <next>.
7506 */
Willy Tarreauaf819352012-08-27 22:08:00 +0200[diff] [blame]7507int del_hdr_value(struct buffer *buf, char **from, char *next)
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7508{
7509 char *prev = *from;
7510
7511 if (*prev == ':') {
7512 /* We're removing the first value, preserve the colon and add a
7513 * space if possible.
7514 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7515 if (!HTTP_IS_CRLF(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7516 next++;
7517 prev++;
7518 if (prev < next)
7519 *prev++ = ' ';
7520
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7521 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7522 next++;
7523 } else {
7524 /* Remove useless spaces before the old delimiter. */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7525 while (HTTP_IS_SPHT(*(prev-1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7526 prev--;
7527 *from = prev;
7528
7529 /* copy the delimiter and if possible a space if we're
7530 * not at the end of the line.
7531 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7532 if (!HTTP_IS_CRLF(*next)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7533 *prev++ = *next++;
7534 if (prev + 1 < next)
7535 *prev++ = ' ';
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7536 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7537 next++;
7538 }
7539 }
7540 return buffer_replace2(buf, prev, next, NULL, 0);
7541}
7542
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]7543/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]7544 * Manage client-side cookie. It can impact performance by about 2% so it is
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7545 * desirable to call it only when needed. This code is quite complex because
7546 * of the multiple very crappy and ambiguous syntaxes we have to support. it
7547 * highly recommended not to touch this part without a good reason !
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7548 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7549void manage_client_side_cookies(struct stream *s, struct channel *req)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7550{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7551 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7552 struct session *sess = s->sess;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7553 int preserve_hdr;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7554 int cur_idx, old_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7555 char *hdr_beg, *hdr_end, *hdr_next, *del_from;
7556 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7557
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7558 /* Iterate through the headers, we start with the start line. */
Willy Tarreau83969f42007-01-22 08:55:47 +0100[diff] [blame]7559 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7560 hdr_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7561
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7562 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7563 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7564 int val;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7565
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7566 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7567 hdr_beg = hdr_next;
7568 hdr_end = hdr_beg + cur_hdr->len;
7569 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7570
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7571 /* We have one full header between hdr_beg and hdr_end, and the
7572 * next header starts at hdr_next. We're only interested in
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7573 * "Cookie:" headers.
7574 */
7575
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7576 val = http_header_match2(hdr_beg, hdr_end, "Cookie", 6);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7577 if (!val) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7578 old_idx = cur_idx;
7579 continue;
7580 }
7581
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7582 del_from = NULL; /* nothing to be deleted */
7583 preserve_hdr = 0; /* assume we may kill the whole header */
7584
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7585 /* Now look for cookies. Conforming to RFC2109, we have to support
7586 * attributes whose name begin with a '$', and associate them with
7587 * the right cookie, if we want to delete this cookie.
7588 * So there are 3 cases for each cookie read :
7589 * 1) it's a special attribute, beginning with a '$' : ignore it.
7590 * 2) it's a server id cookie that we *MAY* want to delete : save
7591 * some pointers on it (last semi-colon, beginning of cookie...)
7592 * 3) it's an application cookie : we *MAY* have to delete a previous
7593 * "special" cookie.
7594 * At the end of loop, if a "special" cookie remains, we may have to
7595 * remove it. If no application cookie persists in the header, we
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7596 * *MUST* delete it.
7597 *
7598 * Note: RFC2965 is unclear about the processing of spaces around
7599 * the equal sign in the ATTR=VALUE form. A careful inspection of
7600 * the RFC explicitly allows spaces before it, and not within the
7601 * tokens (attrs or values). An inspection of RFC2109 allows that
7602 * too but section 10.1.3 lets one think that spaces may be allowed
7603 * after the equal sign too, resulting in some (rare) buggy
7604 * implementations trying to do that. So let's do what servers do.
7605 * Latest ietf draft forbids spaces all around. Also, earlier RFCs
7606 * allowed quoted strings in values, with any possible character
7607 * after a backslash, including control chars and delimitors, which
7608 * causes parsing to become ambiguous. Browsers also allow spaces
7609 * within values even without quotes.
7610 *
7611 * We have to keep multiple pointers in order to support cookie
7612 * removal at the beginning, middle or end of header without
7613 * corrupting the header. All of these headers are valid :
7614 *
7615 * Cookie:NAME1=VALUE1;NAME2=VALUE2;NAME3=VALUE3\r\n
7616 * Cookie:NAME1=VALUE1;NAME2_ONLY ;NAME3=VALUE3\r\n
7617 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
7618 * | | | | | | | | |
7619 * | | | | | | | | hdr_end <--+
7620 * | | | | | | | +--> next
7621 * | | | | | | +----> val_end
7622 * | | | | | +-----------> val_beg
7623 * | | | | +--------------> equal
7624 * | | | +----------------> att_end
7625 * | | +---------------------> att_beg
7626 * | +--------------------------> prev
7627 * +--------------------------------> hdr_beg
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7628 */
7629
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7630 for (prev = hdr_beg + 6; prev < hdr_end; prev = next) {
7631 /* Iterate through all cookies on this line */
7632
7633 /* find att_beg */
7634 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7635 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7636 att_beg++;
7637
7638 /* find att_end : this is the first character after the last non
7639 * space before the equal. It may be equal to hdr_end.
7640 */
7641 equal = att_end = att_beg;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7642
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7643 while (equal < hdr_end) {
7644 if (*equal == '=' || *equal == ',' || *equal == ';')
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7645 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7646 if (HTTP_IS_SPHT(*equal++))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7647 continue;
7648 att_end = equal;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7649 }
7650
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7651 /* here, <equal> points to '=', a delimitor or the end. <att_end>
7652 * is between <att_beg> and <equal>, both may be identical.
7653 */
7654
7655 /* look for end of cookie if there is an equal sign */
7656 if (equal < hdr_end && *equal == '=') {
7657 /* look for the beginning of the value */
7658 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7659 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7660 val_beg++;
7661
7662 /* find the end of the value, respecting quotes */
7663 next = find_cookie_value_end(val_beg, hdr_end);
7664
7665 /* make val_end point to the first white space or delimitor after the value */
7666 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7667 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7668 val_end--;
7669 } else {
7670 val_beg = val_end = next = equal;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]7671 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7672
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7673 /* We have nothing to do with attributes beginning with '$'. However,
7674 * they will automatically be removed if a header before them is removed,
7675 * since they're supposed to be linked together.
7676 */
7677 if (*att_beg == '$')
7678 continue;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7679
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7680 /* Ignore cookies with no equal sign */
7681 if (equal == next) {
7682 /* This is not our cookie, so we must preserve it. But if we already
7683 * scheduled another cookie for removal, we cannot remove the
7684 * complete header, but we can remove the previous block itself.
7685 */
7686 preserve_hdr = 1;
7687 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7688 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7689 val_end += delta;
7690 next += delta;
7691 hdr_end += delta;
7692 hdr_next += delta;
7693 cur_hdr->len += delta;
7694 http_msg_move_end(&txn->req, delta);
7695 prev = del_from;
7696 del_from = NULL;
7697 }
7698 continue;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]7699 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7700
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7701 /* if there are spaces around the equal sign, we need to
7702 * strip them otherwise we'll get trouble for cookie captures,
7703 * or even for rewrites. Since this happens extremely rarely,
7704 * it does not hurt performance.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7705 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7706 if (unlikely(att_end != equal || val_beg > equal + 1)) {
7707 int stripped_before = 0;
7708 int stripped_after = 0;
7709
7710 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7711 stripped_before = buffer_replace2(req->buf, att_end, equal, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7712 equal += stripped_before;
7713 val_beg += stripped_before;
7714 }
7715
7716 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7717 stripped_after = buffer_replace2(req->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7718 val_beg += stripped_after;
7719 stripped_before += stripped_after;
7720 }
7721
7722 val_end += stripped_before;
7723 next += stripped_before;
7724 hdr_end += stripped_before;
7725 hdr_next += stripped_before;
7726 cur_hdr->len += stripped_before;
7727 http_msg_move_end(&txn->req, stripped_before);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7728 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7729 /* now everything is as on the diagram above */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7730
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7731 /* First, let's see if we want to capture this cookie. We check
7732 * that we don't already have a client side cookie, because we
7733 * can only capture one. Also as an optimisation, we ignore
7734 * cookies shorter than the declared name.
7735 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7736 if (sess->fe->capture_name != NULL && txn->cli_cookie == NULL &&
7737 (val_end - att_beg >= sess->fe->capture_namelen) &&
7738 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7739 int log_len = val_end - att_beg;
7740
7741 if ((txn->cli_cookie = pool_alloc2(pool2_capture)) == NULL) {
7742 Alert("HTTP logging : out of memory.\n");
7743 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7744 if (log_len > sess->fe->capture_len)
7745 log_len = sess->fe->capture_len;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7746 memcpy(txn->cli_cookie, att_beg, log_len);
7747 txn->cli_cookie[log_len] = 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7748 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7749 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7750
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7751 /* Persistence cookies in passive, rewrite or insert mode have the
7752 * following form :
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7753 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7754 * Cookie: NAME=SRV[|<lastseen>[|<firstseen>]]
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7755 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7756 * For cookies in prefix mode, the form is :
7757 *
7758 * Cookie: NAME=SRV~VALUE
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7759 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7760 if ((att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
7761 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
7762 struct server *srv = s->be->srv;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7763 char *delim;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7764
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7765 /* if we're in cookie prefix mode, we'll search the delimitor so that we
7766 * have the server ID between val_beg and delim, and the original cookie between
7767 * delim+1 and val_end. Otherwise, delim==val_end :
7768 *
7769 * Cookie: NAME=SRV; # in all but prefix modes
7770 * Cookie: NAME=SRV~OPAQUE ; # in prefix mode
7771 * | || || | |+-> next
7772 * | || || | +--> val_end
7773 * | || || +---------> delim
7774 * | || |+------------> val_beg
7775 * | || +-------------> att_end = equal
7776 * | |+-----------------> att_beg
7777 * | +------------------> prev
7778 * +-------------------------> hdr_beg
7779 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7780
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7781 if (s->be->ck_opts & PR_CK_PFX) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7782 for (delim = val_beg; delim < val_end; delim++)
7783 if (*delim == COOKIE_DELIM)
7784 break;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7785 } else {
7786 char *vbar1;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7787 delim = val_end;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7788 /* Now check if the cookie contains a date field, which would
7789 * appear after a vertical bar ('|') just after the server name
7790 * and before the delimiter.
7791 */
7792 vbar1 = memchr(val_beg, COOKIE_DELIM_DATE, val_end - val_beg);
7793 if (vbar1) {
7794 /* OK, so left of the bar is the server's cookie and
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7795 * right is the last seen date. It is a base64 encoded
7796 * 30-bit value representing the UNIX date since the
7797 * epoch in 4-second quantities.
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7798 */
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7799 int val;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7800 delim = vbar1++;
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7801 if (val_end - vbar1 >= 5) {
7802 val = b64tos30(vbar1);
7803 if (val > 0)
7804 txn->cookie_last_date = val << 2;
7805 }
7806 /* look for a second vertical bar */
7807 vbar1 = memchr(vbar1, COOKIE_DELIM_DATE, val_end - vbar1);
7808 if (vbar1 && (val_end - vbar1 > 5)) {
7809 val = b64tos30(vbar1 + 1);
7810 if (val > 0)
7811 txn->cookie_first_date = val << 2;
7812 }
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]7813 }
7814 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7815
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7816 /* if the cookie has an expiration date and the proxy wants to check
7817 * it, then we do that now. We first check if the cookie is too old,
7818 * then only if it has expired. We detect strict overflow because the
7819 * time resolution here is not great (4 seconds). Cookies with dates
7820 * in the future are ignored if their offset is beyond one day. This
7821 * allows an admin to fix timezone issues without expiring everyone
7822 * and at the same time avoids keeping unwanted side effects for too
7823 * long.
7824 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7825 if (txn->cookie_first_date && s->be->cookie_maxlife &&
7826 (((signed)(date.tv_sec - txn->cookie_first_date) > (signed)s->be->cookie_maxlife) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]7827 ((signed)(txn->cookie_first_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7828 txn->flags &= ~TX_CK_MASK;
7829 txn->flags |= TX_CK_OLD;
7830 delim = val_beg; // let's pretend we have not found the cookie
7831 txn->cookie_first_date = 0;
7832 txn->cookie_last_date = 0;
7833 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7834 else if (txn->cookie_last_date && s->be->cookie_maxidle &&
7835 (((signed)(date.tv_sec - txn->cookie_last_date) > (signed)s->be->cookie_maxidle) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]7836 ((signed)(txn->cookie_last_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7837 txn->flags &= ~TX_CK_MASK;
7838 txn->flags |= TX_CK_EXPIRED;
7839 delim = val_beg; // let's pretend we have not found the cookie
7840 txn->cookie_first_date = 0;
7841 txn->cookie_last_date = 0;
7842 }
7843
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7844 /* Here, we'll look for the first running server which supports the cookie.
7845 * This allows to share a same cookie between several servers, for example
7846 * to dedicate backup servers to specific servers only.
7847 * However, to prevent clients from sticking to cookie-less backup server
7848 * when they have incidentely learned an empty cookie, we simply ignore
7849 * empty cookies and mark them as invalid.
7850 * The same behaviour is applied when persistence must be ignored.
7851 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7852 if ((delim == val_beg) || (s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7853 srv = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7854
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7855 while (srv) {
7856 if (srv->cookie && (srv->cklen == delim - val_beg) &&
7857 !memcmp(val_beg, srv->cookie, delim - val_beg)) {
Willy Tarreau892337c2014-05-13 23:41:20 +0200[diff] [blame]7858 if ((srv->state != SRV_ST_STOPPED) ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7859 (s->be->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7860 (s->flags & SF_FORCE_PRST)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7861 /* we found the server and we can use it */
7862 txn->flags &= ~TX_CK_MASK;
Willy Tarreau892337c2014-05-13 23:41:20 +0200[diff] [blame]7863 txn->flags |= (srv->state != SRV_ST_STOPPED) ? TX_CK_VALID : TX_CK_DOWN;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7864 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7865 s->target = &srv->obj_type;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7866 break;
7867 } else {
7868 /* we found a server, but it's down,
7869 * mark it as such and go on in case
7870 * another one is available.
7871 */
7872 txn->flags &= ~TX_CK_MASK;
7873 txn->flags |= TX_CK_DOWN;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7874 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7875 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7876 srv = srv->next;
7877 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7878
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7879 if (!srv && !(txn->flags & (TX_CK_DOWN|TX_CK_EXPIRED|TX_CK_OLD))) {
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7880 /* no server matched this cookie or we deliberately skipped it */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7881 txn->flags &= ~TX_CK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7882 if ((s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]7883 txn->flags |= TX_CK_UNUSED;
7884 else
7885 txn->flags |= TX_CK_INVALID;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7886 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7887
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7888 /* depending on the cookie mode, we may have to either :
7889 * - delete the complete cookie if we're in insert+indirect mode, so that
7890 * the server never sees it ;
7891 * - remove the server id from the cookie value, and tag the cookie as an
7892 * application cookie so that it does not get accidentely removed later,
7893 * if we're in cookie prefix mode
7894 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7895 if ((s->be->ck_opts & PR_CK_PFX) && (delim != val_end)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7896 int delta; /* negative */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7897
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7898 delta = buffer_replace2(req->buf, val_beg, delim + 1, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7899 val_end += delta;
7900 next += delta;
7901 hdr_end += delta;
7902 hdr_next += delta;
7903 cur_hdr->len += delta;
7904 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7905
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7906 del_from = NULL;
7907 preserve_hdr = 1; /* we want to keep this cookie */
7908 }
7909 else if (del_from == NULL &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7910 (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]7911 del_from = prev;
7912 }
7913 } else {
7914 /* This is not our cookie, so we must preserve it. But if we already
7915 * scheduled another cookie for removal, we cannot remove the
7916 * complete header, but we can remove the previous block itself.
7917 */
7918 preserve_hdr = 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7919
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7920 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7921 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaub8105542010-11-24 18:31:28 +0100[diff] [blame]7922 if (att_beg >= del_from)
7923 att_beg += delta;
7924 if (att_end >= del_from)
7925 att_end += delta;
7926 val_beg += delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7927 val_end += delta;
7928 next += delta;
7929 hdr_end += delta;
7930 hdr_next += delta;
7931 cur_hdr->len += delta;
7932 http_msg_move_end(&txn->req, delta);
7933 prev = del_from;
7934 del_from = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7935 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7936 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7937
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7938 /* continue with next cookie on this header line */
7939 att_beg = next;
7940 } /* for each cookie */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7941
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7942 /* There are no more cookies on this line.
7943 * We may still have one (or several) marked for deletion at the
7944 * end of the line. We must do this now in two ways :
7945 * - if some cookies must be preserved, we only delete from the
7946 * mark to the end of line ;
7947 * - if nothing needs to be preserved, simply delete the whole header
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7948 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7949 if (del_from) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7950 int delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7951 if (preserve_hdr) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7952 delta = del_hdr_value(req->buf, &del_from, hdr_end);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7953 hdr_end = del_from;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7954 cur_hdr->len += delta;
7955 } else {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7956 delta = buffer_replace2(req->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7957
7958 /* FIXME: this should be a separate function */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]7959 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7960 txn->hdr_idx.used--;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7961 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7962 cur_idx = old_idx;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7963 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7964 hdr_next += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7965 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7966 }
7967
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7968 /* check next header */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7969 old_idx = cur_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]7970 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7971}
7972
7973
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7974/* Iterate the same filter through all response headers contained in <rtr>.
7975 * Returns 1 if this filter can be stopped upon return, otherwise 0.
7976 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7977int 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]7978{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7979 char *cur_ptr, *cur_end, *cur_next;
7980 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7981 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7982 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7983 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7984
7985 last_hdr = 0;
7986
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7987 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7988 old_idx = 0;
7989
7990 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7991 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7992 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7993 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7994 (exp->action == ACT_ALLOW ||
7995 exp->action == ACT_DENY))
7996 return 0;
7997
7998 cur_idx = txn->hdr_idx.v[old_idx].next;
7999 if (!cur_idx)
8000 break;
8001
8002 cur_hdr = &txn->hdr_idx.v[cur_idx];
8003 cur_ptr = cur_next;
8004 cur_end = cur_ptr + cur_hdr->len;
8005 cur_next = cur_end + cur_hdr->cr + 1;
8006
8007 /* Now we have one header between cur_ptr and cur_end,
8008 * and the next header starts at cur_next.
8009 */
8010
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]8011 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]8012 switch (exp->action) {
8013 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8014 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8015 last_hdr = 1;
8016 break;
8017
8018 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8019 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8020 last_hdr = 1;
8021 break;
8022
8023 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]8024 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
8025 if (trash.len < 0)
8026 return -1;
8027
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]8028 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8029 /* FIXME: if the user adds a newline in the replacement, the
8030 * index will not be recalculated for now, and the new line
8031 * will not be counted as a new header.
8032 */
8033
8034 cur_end += delta;
8035 cur_next += delta;
8036 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]8037 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8038 break;
8039
8040 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8041 delta = buffer_replace2(rtr->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8042 cur_next += delta;
8043
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]8044 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8045 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
8046 txn->hdr_idx.used--;
8047 cur_hdr->len = 0;
8048 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]8049 cur_idx = old_idx;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8050 break;
8051
8052 }
8053 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8054
8055 /* keep the link from this header to next one in case of later
8056 * removal of next header.
8057 */
8058 old_idx = cur_idx;
8059 }
8060 return 0;
8061}
8062
8063
8064/* Apply the filter to the status line in the response buffer <rtr>.
8065 * Returns 0 if nothing has been done, 1 if the filter has been applied,
8066 * or -1 if a replacement resulted in an invalid status line.
8067 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8068int 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]8069{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8070 char *cur_ptr, *cur_end;
8071 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8072 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]8073 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8074
8075
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8076 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8077 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8078 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8079 (exp->action == ACT_ALLOW ||
8080 exp->action == ACT_DENY))
8081 return 0;
8082 else if (exp->action == ACT_REMOVE)
8083 return 0;
8084
8085 done = 0;
8086
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8087 cur_ptr = rtr->buf->p;
Willy Tarreau1ba0e5f2010-06-07 13:57:32 +0200[diff] [blame]8088 cur_end = cur_ptr + txn->rsp.sl.st.l;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8089
8090 /* Now we have the status line between cur_ptr and cur_end */
8091
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]8092 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]8093 switch (exp->action) {
8094 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8095 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8096 done = 1;
8097 break;
8098
8099 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8100 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8101 done = 1;
8102 break;
8103
8104 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]8105 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
8106 if (trash.len < 0)
8107 return -1;
8108
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]8109 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8110 /* FIXME: if the user adds a newline in the replacement, the
8111 * index will not be recalculated for now, and the new line
8112 * will not be counted as a new header.
8113 */
8114
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]8115 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8116 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8117 cur_end = (char *)http_parse_stsline(&txn->rsp,
Willy Tarreau02785762007-04-03 14:45:44 +0200[diff] [blame]8118 HTTP_MSG_RPVER,
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8119 cur_ptr, cur_end + 1,
8120 NULL, NULL);
8121 if (unlikely(!cur_end))
8122 return -1;
8123
8124 /* we have a full respnse and we know that we have either a CR
8125 * or an LF at <ptr>.
8126 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8127 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]8128 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]8129 /* there is no point trying this regex on headers */
8130 return 1;
8131 }
8132 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8133 return done;
8134}
8135
8136
8137
8138/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8139 * 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]8140 * Returns 0 if everything is alright, or -1 in case a replacement lead to an
8141 * unparsable response.
8142 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8143int apply_filters_to_response(struct stream *s, struct channel *rtr, struct proxy *px)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8144{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]8145 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8146 struct http_txn *txn = s->txn;
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]8147 struct hdr_exp *exp;
8148
8149 for (exp = px->rsp_exp; exp; exp = exp->next) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8150 int ret;
8151
8152 /*
8153 * The interleaving of transformations and verdicts
8154 * makes it difficult to decide to continue or stop
8155 * the evaluation.
8156 */
8157
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]8158 if (txn->flags & TX_SVDENY)
8159 break;
8160
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8161 if ((txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8162 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
8163 exp->action == ACT_PASS)) {
8164 exp = exp->next;
8165 continue;
8166 }
8167
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]8168 /* if this filter had a condition, evaluate it now and skip to
8169 * next filter if the condition does not match.
8170 */
8171 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]8172 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]8173 ret = acl_pass(ret);
8174 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
8175 ret = !ret;
8176 if (!ret)
8177 continue;
8178 }
8179
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8180 /* Apply the filter to the status line. */
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]8181 ret = apply_filter_to_sts_line(s, rtr, exp);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8182 if (unlikely(ret < 0))
8183 return -1;
8184
8185 if (likely(ret == 0)) {
8186 /* The filter did not match the response, it can be
8187 * iterated through all headers.
8188 */
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]8189 if (unlikely(apply_filter_to_resp_headers(s, rtr, exp) < 0))
8190 return -1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8191 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8192 }
8193 return 0;
8194}
8195
8196
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8197/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]8198 * Manage server-side cookies. It can impact performance by about 2% so it is
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8199 * desirable to call it only when needed. This function is also used when we
8200 * just need to know if there is a cookie (eg: for check-cache).
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8201 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8202void manage_server_side_cookies(struct stream *s, struct channel *res)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8203{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8204 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8205 struct session *sess = s->sess;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]8206 struct server *srv;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8207 int is_cookie2;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8208 int cur_idx, old_idx, delta;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8209 char *hdr_beg, *hdr_end, *hdr_next;
8210 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8211
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8212 /* Iterate through the headers.
8213 * we start with the start line.
8214 */
8215 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8216 hdr_next = res->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8217
8218 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
8219 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8220 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8221
8222 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8223 hdr_beg = hdr_next;
8224 hdr_end = hdr_beg + cur_hdr->len;
8225 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8226
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8227 /* We have one full header between hdr_beg and hdr_end, and the
8228 * next header starts at hdr_next. We're only interested in
8229 * "Set-Cookie" and "Set-Cookie2" headers.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8230 */
8231
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8232 is_cookie2 = 0;
8233 prev = hdr_beg + 10;
8234 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie", 10);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8235 if (!val) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8236 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie2", 11);
8237 if (!val) {
8238 old_idx = cur_idx;
8239 continue;
8240 }
8241 is_cookie2 = 1;
8242 prev = hdr_beg + 11;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8243 }
8244
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8245 /* OK, right now we know we have a Set-Cookie* at hdr_beg, and
8246 * <prev> points to the colon.
8247 */
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]8248 txn->flags |= TX_SCK_PRESENT;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8249
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8250 /* Maybe we only wanted to see if there was a Set-Cookie (eg:
8251 * check-cache is enabled) and we are not interested in checking
8252 * them. Warning, the cookie capture is declared in the frontend.
Willy Tarreaufd39dda2008-10-17 12:01:58 +0200[diff] [blame]8253 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]8254 if (s->be->cookie_name == NULL && sess->fe->capture_name == NULL)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8255 return;
8256
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8257 /* OK so now we know we have to process this response cookie.
8258 * The format of the Set-Cookie header is slightly different
8259 * from the format of the Cookie header in that it does not
8260 * support the comma as a cookie delimiter (thus the header
8261 * cannot be folded) because the Expires attribute described in
8262 * the original Netscape's spec may contain an unquoted date
8263 * with a comma inside. We have to live with this because
8264 * many browsers don't support Max-Age and some browsers don't
8265 * support quoted strings. However the Set-Cookie2 header is
8266 * clean.
8267 *
8268 * We have to keep multiple pointers in order to support cookie
8269 * removal at the beginning, middle or end of header without
8270 * corrupting the header (in case of set-cookie2). A special
8271 * pointer, <scav> points to the beginning of the set-cookie-av
8272 * fields after the first semi-colon. The <next> pointer points
8273 * either to the end of line (set-cookie) or next unquoted comma
8274 * (set-cookie2). All of these headers are valid :
8275 *
8276 * Set-Cookie: NAME1 = VALUE 1 ; Secure; Path="/"\r\n
8277 * Set-Cookie:NAME=VALUE; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
8278 * Set-Cookie: NAME = VALUE ; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
8279 * Set-Cookie2: NAME1 = VALUE 1 ; Max-Age=0, NAME2=VALUE2; Discard\r\n
8280 * | | | | | | | | | |
8281 * | | | | | | | | +-> next hdr_end <--+
8282 * | | | | | | | +------------> scav
8283 * | | | | | | +--------------> val_end
8284 * | | | | | +--------------------> val_beg
8285 * | | | | +----------------------> equal
8286 * | | | +------------------------> att_end
8287 * | | +----------------------------> att_beg
8288 * | +------------------------------> prev
8289 * +-----------------------------------------> hdr_beg
8290 */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8291
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8292 for (; prev < hdr_end; prev = next) {
8293 /* Iterate through all cookies on this line */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8294
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8295 /* find att_beg */
8296 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]8297 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8298 att_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8299
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8300 /* find att_end : this is the first character after the last non
8301 * space before the equal. It may be equal to hdr_end.
8302 */
8303 equal = att_end = att_beg;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8304
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8305 while (equal < hdr_end) {
8306 if (*equal == '=' || *equal == ';' || (is_cookie2 && *equal == ','))
8307 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]8308 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8309 continue;
8310 att_end = equal;
8311 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8312
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8313 /* here, <equal> points to '=', a delimitor or the end. <att_end>
8314 * is between <att_beg> and <equal>, both may be identical.
8315 */
8316
8317 /* look for end of cookie if there is an equal sign */
8318 if (equal < hdr_end && *equal == '=') {
8319 /* look for the beginning of the value */
8320 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]8321 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8322 val_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8323
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8324 /* find the end of the value, respecting quotes */
8325 next = find_cookie_value_end(val_beg, hdr_end);
8326
8327 /* make val_end point to the first white space or delimitor after the value */
8328 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]8329 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8330 val_end--;
8331 } else {
8332 /* <equal> points to next comma, semi-colon or EOL */
8333 val_beg = val_end = next = equal;
8334 }
8335
8336 if (next < hdr_end) {
8337 /* Set-Cookie2 supports multiple cookies, and <next> points to
8338 * a colon or semi-colon before the end. So skip all attr-value
8339 * pairs and look for the next comma. For Set-Cookie, since
8340 * commas are permitted in values, skip to the end.
8341 */
8342 if (is_cookie2)
8343 next = find_hdr_value_end(next, hdr_end);
8344 else
8345 next = hdr_end;
8346 }
8347
8348 /* Now everything is as on the diagram above */
8349
8350 /* Ignore cookies with no equal sign */
8351 if (equal == val_end)
8352 continue;
8353
8354 /* If there are spaces around the equal sign, we need to
8355 * strip them otherwise we'll get trouble for cookie captures,
8356 * or even for rewrites. Since this happens extremely rarely,
8357 * it does not hurt performance.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8358 */
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8359 if (unlikely(att_end != equal || val_beg > equal + 1)) {
8360 int stripped_before = 0;
8361 int stripped_after = 0;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8362
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8363 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8364 stripped_before = buffer_replace2(res->buf, att_end, equal, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8365 equal += stripped_before;
8366 val_beg += stripped_before;
8367 }
8368
8369 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8370 stripped_after = buffer_replace2(res->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8371 val_beg += stripped_after;
8372 stripped_before += stripped_after;
8373 }
8374
8375 val_end += stripped_before;
8376 next += stripped_before;
8377 hdr_end += stripped_before;
8378 hdr_next += stripped_before;
8379 cur_hdr->len += stripped_before;
Willy Tarreau1fc1f452011-04-07 22:35:37 +0200[diff] [blame]8380 http_msg_move_end(&txn->rsp, stripped_before);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8381 }
8382
8383 /* First, let's see if we want to capture this cookie. We check
8384 * that we don't already have a server side cookie, because we
8385 * can only capture one. Also as an optimisation, we ignore
8386 * cookies shorter than the declared name.
8387 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8388 if (sess->fe->capture_name != NULL &&
Willy Tarreau3bac9ff2007-03-18 17:31:28 +0100[diff] [blame]8389 txn->srv_cookie == NULL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8390 (val_end - att_beg >= sess->fe->capture_namelen) &&
8391 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8392 int log_len = val_end - att_beg;
Willy Tarreau086b3b42007-05-13 21:45:51 +0200[diff] [blame]8393 if ((txn->srv_cookie = pool_alloc2(pool2_capture)) == NULL) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8394 Alert("HTTP logging : out of memory.\n");
8395 }
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]8396 else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8397 if (log_len > sess->fe->capture_len)
8398 log_len = sess->fe->capture_len;
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]8399 memcpy(txn->srv_cookie, att_beg, log_len);
8400 txn->srv_cookie[log_len] = 0;
8401 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8402 }
8403
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8404 srv = objt_server(s->target);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8405 /* now check if we need to process it for persistence */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]8406 if (!(s->flags & SF_IGNORE_PRST) &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8407 (att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
8408 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]8409 /* assume passive cookie by default */
8410 txn->flags &= ~TX_SCK_MASK;
8411 txn->flags |= TX_SCK_FOUND;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8412
8413 /* If the cookie is in insert mode on a known server, we'll delete
8414 * this occurrence because we'll insert another one later.
8415 * 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]8416 * a direct access.
8417 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8418 if (s->be->ck_opts & PR_CK_PSV) {
Willy Tarreauba4c5be2010-10-23 12:46:42 +0200[diff] [blame]8419 /* The "preserve" flag was set, we don't want to touch the
8420 * server's cookie.
8421 */
8422 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8423 else if ((srv && (s->be->ck_opts & PR_CK_INS)) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]8424 ((s->flags & SF_DIRECT) && (s->be->ck_opts & PR_CK_IND))) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8425 /* this cookie must be deleted */
8426 if (*prev == ':' && next == hdr_end) {
8427 /* whole header */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8428 delta = buffer_replace2(res->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8429 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
8430 txn->hdr_idx.used--;
8431 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]8432 cur_idx = old_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8433 hdr_next += delta;
8434 http_msg_move_end(&txn->rsp, delta);
8435 /* note: while both invalid now, <next> and <hdr_end>
8436 * are still equal, so the for() will stop as expected.
8437 */
8438 } else {
8439 /* just remove the value */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8440 int delta = del_hdr_value(res->buf, &prev, next);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8441 next = prev;
8442 hdr_end += delta;
8443 hdr_next += delta;
8444 cur_hdr->len += delta;
8445 http_msg_move_end(&txn->rsp, delta);
8446 }
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]8447 txn->flags &= ~TX_SCK_MASK;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8448 txn->flags |= TX_SCK_DELETED;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8449 /* and go on with next cookie */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8450 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8451 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_RW)) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8452 /* replace bytes val_beg->val_end with the cookie name associated
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8453 * with this server since we know it.
8454 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8455 delta = buffer_replace2(res->buf, val_beg, val_end, srv->cookie, srv->cklen);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8456 next += delta;
8457 hdr_end += delta;
8458 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8459 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]8460 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8461
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]8462 txn->flags &= ~TX_SCK_MASK;
8463 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8464 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8465 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_PFX)) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8466 /* insert the cookie name associated with this server
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8467 * before existing cookie, and insert a delimiter between them..
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8468 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8469 delta = buffer_replace2(res->buf, val_beg, val_beg, srv->cookie, srv->cklen + 1);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8470 next += delta;
8471 hdr_end += delta;
8472 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8473 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]8474 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8475
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]8476 val_beg[srv->cklen] = COOKIE_DELIM;
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]8477 txn->flags &= ~TX_SCK_MASK;
8478 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8479 }
8480 }
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8481 /* that's done for this cookie, check the next one on the same
8482 * line when next != hdr_end (only if is_cookie2).
8483 */
8484 }
8485 /* check next header */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8486 old_idx = cur_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]8487 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8488}
8489
8490
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8491/*
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8492 * Check if response is cacheable or not. Updates s->flags.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8493 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8494void check_response_for_cacheability(struct stream *s, struct channel *rtr)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8495{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8496 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8497 char *p1, *p2;
8498
8499 char *cur_ptr, *cur_end, *cur_next;
8500 int cur_idx;
8501
Willy Tarreau5df51872007-11-25 16:20:08 +0100[diff] [blame]8502 if (!(txn->flags & TX_CACHEABLE))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8503 return;
8504
8505 /* Iterate through the headers.
8506 * we start with the start line.
8507 */
8508 cur_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8509 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8510
8511 while ((cur_idx = txn->hdr_idx.v[cur_idx].next)) {
8512 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8513 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8514
8515 cur_hdr = &txn->hdr_idx.v[cur_idx];
8516 cur_ptr = cur_next;
8517 cur_end = cur_ptr + cur_hdr->len;
8518 cur_next = cur_end + cur_hdr->cr + 1;
8519
8520 /* We have one full header between cur_ptr and cur_end, and the
8521 * next header starts at cur_next. We're only interested in
8522 * "Cookie:" headers.
8523 */
8524
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8525 val = http_header_match2(cur_ptr, cur_end, "Pragma", 6);
8526 if (val) {
8527 if ((cur_end - (cur_ptr + val) >= 8) &&
8528 strncasecmp(cur_ptr + val, "no-cache", 8) == 0) {
8529 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
8530 return;
8531 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8532 }
8533
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8534 val = http_header_match2(cur_ptr, cur_end, "Cache-control", 13);
8535 if (!val)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8536 continue;
8537
8538 /* OK, right now we know we have a cache-control header at cur_ptr */
8539
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]8540 p1 = cur_ptr + val; /* first non-space char after 'cache-control:' */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8541
8542 if (p1 >= cur_end) /* no more info */
8543 continue;
8544
8545 /* p1 is at the beginning of the value */
8546 p2 = p1;
8547
Willy Tarreau8f8e6452007-06-17 21:51:38 +0200[diff] [blame]8548 while (p2 < cur_end && *p2 != '=' && *p2 != ',' && !isspace((unsigned char)*p2))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8549 p2++;
8550
8551 /* we have a complete value between p1 and p2 */
8552 if (p2 < cur_end && *p2 == '=') {
8553 /* we have something of the form no-cache="set-cookie" */
8554 if ((cur_end - p1 >= 21) &&
8555 strncasecmp(p1, "no-cache=\"set-cookie", 20) == 0
8556 && (p1[20] == '"' || p1[20] == ','))
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8557 txn->flags &= ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8558 continue;
8559 }
8560
8561 /* OK, so we know that either p2 points to the end of string or to a comma */
8562 if (((p2 - p1 == 7) && strncasecmp(p1, "private", 7) == 0) ||
Willy Tarreau5b15f902013-07-04 12:46:56 +0200[diff] [blame]8563 ((p2 - p1 == 8) && strncasecmp(p1, "no-cache", 8) == 0) ||
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8564 ((p2 - p1 == 8) && strncasecmp(p1, "no-store", 8) == 0) ||
8565 ((p2 - p1 == 9) && strncasecmp(p1, "max-age=0", 9) == 0) ||
8566 ((p2 - p1 == 10) && strncasecmp(p1, "s-maxage=0", 10) == 0)) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8567 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8568 return;
8569 }
8570
8571 if ((p2 - p1 == 6) && strncasecmp(p1, "public", 6) == 0) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]8572 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]8573 continue;
8574 }
8575 }
8576}
8577
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8578
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8579/*
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]8580 * 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]8581 * for the current backend.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8582 *
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]8583 * 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]8584 * uri_auth field is valid.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8585 *
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]8586 * Returns 1 if stats should be provided, otherwise 0.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8587 */
Willy Tarreau295a8372011-03-10 11:25:07 +0100[diff] [blame]8588int stats_check_uri(struct stream_interface *si, struct http_txn *txn, struct proxy *backend)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8589{
8590 struct uri_auth *uri_auth = backend->uri_auth;
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]8591 struct http_msg *msg = &txn->req;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8592 const char *uri = msg->chn->buf->p+ msg->sl.rq.u;
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8593
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]8594 if (!uri_auth)
8595 return 0;
8596
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]8597 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]8598 return 0;
8599
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]8600 /* check URI size */
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]8601 if (uri_auth->uri_len > msg->sl.rq.u_l)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8602 return 0;
8603
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]8604 if (memcmp(uri, uri_auth->uri_prefix, uri_auth->uri_len) != 0)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8605 return 0;
8606
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8607 return 1;
8608}
8609
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8610/*
8611 * Capture a bad request or response and archive it in the proxy's structure.
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8612 * By default it tries to report the error position as msg->err_pos. However if
8613 * this one is not set, it will then report msg->next, which is the last known
8614 * parsing point. The function is able to deal with wrapping buffers. It always
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8615 * displays buffers as a contiguous area starting at buf->p.
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8616 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8617void http_capture_bad_message(struct error_snapshot *es, struct stream *s,
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]8618 struct http_msg *msg,
Willy Tarreau3770f232013-12-07 00:01:53 +0100[diff] [blame]8619 enum ht_state state, struct proxy *other_end)
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8620{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8621 struct session *sess = strm_sess(s);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8622 struct channel *chn = msg->chn;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8623 int len1, len2;
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]8624
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]8625 es->len = MIN(chn->buf->i, global.tune.bufsize);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8626 len1 = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8627 len1 = MIN(len1, es->len);
8628 len2 = es->len - len1; /* remaining data if buffer wraps */
8629
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]8630 if (!es->buf)
8631 es->buf = malloc(global.tune.bufsize);
8632
8633 if (es->buf) {
8634 memcpy(es->buf, chn->buf->p, len1);
8635 if (len2)
8636 memcpy(es->buf + len1, chn->buf->data, len2);
8637 }
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]8638
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8639 if (msg->err_pos >= 0)
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8640 es->pos = msg->err_pos;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]8641 else
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]8642 es->pos = msg->next;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]8643
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8644 es->when = date; // user-visible date
8645 es->sid = s->uniq_id;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]8646 es->srv = objt_server(s->target);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8647 es->oe = other_end;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8648 if (objt_conn(sess->origin))
8649 es->src = __objt_conn(sess->origin)->addr.from;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]8650 else
8651 memset(&es->src, 0, sizeof(es->src));
8652
Willy Tarreau078272e2010-12-12 12:46:33 +0100[diff] [blame]8653 es->state = state;
Willy Tarreau10479e42010-12-12 14:00:34 +0100[diff] [blame]8654 es->ev_id = error_snapshot_id++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8655 es->b_flags = chn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]8656 es->s_flags = s->flags;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8657 es->t_flags = s->txn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]8658 es->m_flags = msg->flags;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8659 es->b_out = chn->buf->o;
8660 es->b_wrap = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]8661 es->b_tot = chn->total;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]8662 es->m_clen = msg->chunk_len;
8663 es->m_blen = msg->body_len;
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]8664}
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]8665
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8666/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
8667 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
8668 * performed over the whole headers. Otherwise it must contain a valid header
8669 * context, initialised with ctx->idx=0 for the first lookup in a series. If
8670 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
8671 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
8672 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8673 * -1. The value fetch stops at commas, so this function is suited for use with
8674 * list headers.
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8675 * The return value is 0 if nothing was found, or non-zero otherwise.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8676 */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]8677unsigned int http_get_hdr(const struct http_msg *msg, const char *hname, int hlen,
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8678 struct hdr_idx *idx, int occ,
8679 struct hdr_ctx *ctx, char **vptr, int *vlen)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8680{
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8681 struct hdr_ctx local_ctx;
8682 char *ptr_hist[MAX_HDR_HISTORY];
8683 int len_hist[MAX_HDR_HISTORY];
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8684 unsigned int hist_ptr;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8685 int found;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8686
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8687 if (!ctx) {
8688 local_ctx.idx = 0;
8689 ctx = &local_ctx;
8690 }
8691
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8692 if (occ >= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8693 /* search from the beginning */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8694 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8695 occ--;
8696 if (occ <= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8697 *vptr = ctx->line + ctx->val;
8698 *vlen = ctx->vlen;
8699 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8700 }
8701 }
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8702 return 0;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8703 }
8704
8705 /* negative occurrence, we scan all the list then walk back */
8706 if (-occ > MAX_HDR_HISTORY)
8707 return 0;
8708
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8709 found = hist_ptr = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]8710 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8711 ptr_hist[hist_ptr] = ctx->line + ctx->val;
8712 len_hist[hist_ptr] = ctx->vlen;
8713 if (++hist_ptr >= MAX_HDR_HISTORY)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8714 hist_ptr = 0;
8715 found++;
8716 }
8717 if (-occ > found)
8718 return 0;
8719 /* 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]8720 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
8721 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
8722 * to remain in the 0..9 range.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8723 */
Willy Tarreau67dad272013-06-12 22:27:44 +0200[diff] [blame]8724 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8725 if (hist_ptr >= MAX_HDR_HISTORY)
8726 hist_ptr -= MAX_HDR_HISTORY;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]8727 *vptr = ptr_hist[hist_ptr];
8728 *vlen = len_hist[hist_ptr];
8729 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]8730}
8731
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8732/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
8733 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
8734 * performed over the whole headers. Otherwise it must contain a valid header
8735 * context, initialised with ctx->idx=0 for the first lookup in a series. If
8736 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
8737 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
8738 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
8739 * -1. This function differs from http_get_hdr() in that it only returns full
8740 * line header values and does not stop at commas.
8741 * The return value is 0 if nothing was found, or non-zero otherwise.
8742 */
8743unsigned int http_get_fhdr(const struct http_msg *msg, const char *hname, int hlen,
8744 struct hdr_idx *idx, int occ,
8745 struct hdr_ctx *ctx, char **vptr, int *vlen)
8746{
8747 struct hdr_ctx local_ctx;
8748 char *ptr_hist[MAX_HDR_HISTORY];
8749 int len_hist[MAX_HDR_HISTORY];
8750 unsigned int hist_ptr;
8751 int found;
8752
8753 if (!ctx) {
8754 local_ctx.idx = 0;
8755 ctx = &local_ctx;
8756 }
8757
8758 if (occ >= 0) {
8759 /* search from the beginning */
8760 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
8761 occ--;
8762 if (occ <= 0) {
8763 *vptr = ctx->line + ctx->val;
8764 *vlen = ctx->vlen;
8765 return 1;
8766 }
8767 }
8768 return 0;
8769 }
8770
8771 /* negative occurrence, we scan all the list then walk back */
8772 if (-occ > MAX_HDR_HISTORY)
8773 return 0;
8774
8775 found = hist_ptr = 0;
8776 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
8777 ptr_hist[hist_ptr] = ctx->line + ctx->val;
8778 len_hist[hist_ptr] = ctx->vlen;
8779 if (++hist_ptr >= MAX_HDR_HISTORY)
8780 hist_ptr = 0;
8781 found++;
8782 }
8783 if (-occ > found)
8784 return 0;
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]8785
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8786 /* 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]8787 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
8788 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
8789 * to remain in the 0..9 range.
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8790 */
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]8791 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]8792 if (hist_ptr >= MAX_HDR_HISTORY)
8793 hist_ptr -= MAX_HDR_HISTORY;
8794 *vptr = ptr_hist[hist_ptr];
8795 *vlen = len_hist[hist_ptr];
8796 return 1;
8797}
8798
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]8799/*
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]8800 * Print a debug line with a header. Always stop at the first CR or LF char,
8801 * so it is safe to pass it a full buffer if needed. If <err> is not NULL, an
8802 * arrow is printed after the line which contains the pointer.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8803 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8804void debug_hdr(const char *dir, struct stream *s, const char *start, const char *end)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8805{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8806 struct session *sess = strm_sess(s);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]8807 int max;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8808
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]8809 chunk_printf(&trash, "%08x:%s.%s[%04x:%04x]: ", s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]8810 dir,
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]8811 objt_conn(sess->origin) ? (unsigned short)objt_conn(sess->origin)->t.sock.fd : -1,
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]8812 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]8813
8814 for (max = 0; start + max < end; max++)
8815 if (start[max] == '\r' || start[max] == '\n')
8816 break;
8817
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]8818 UBOUND(max, trash.size - trash.len - 3);
8819 trash.len += strlcpy2(trash.str + trash.len, start, max + 1);
8820 trash.str[trash.len++] = '\n';
Willy Tarreau89efaed2013-12-13 15:14:55 +0100[diff] [blame]8821 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8822}
8823
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8824
8825/* Allocate a new HTTP transaction for stream <s> unless there is one already.
8826 * The hdr_idx is allocated as well. In case of allocation failure, everything
8827 * allocated is freed and NULL is returned. Otherwise the new transaction is
8828 * assigned to the stream and returned.
8829 */
8830struct http_txn *http_alloc_txn(struct stream *s)
8831{
8832 struct http_txn *txn = s->txn;
8833
8834 if (txn)
8835 return txn;
8836
8837 txn = pool_alloc2(pool2_http_txn);
8838 if (!txn)
8839 return txn;
8840
8841 txn->hdr_idx.size = global.tune.max_http_hdr;
8842 txn->hdr_idx.v = pool_alloc2(pool2_hdr_idx);
8843 if (!txn->hdr_idx.v) {
8844 pool_free2(pool2_http_txn, txn);
8845 return NULL;
8846 }
8847
8848 s->txn = txn;
8849 return txn;
8850}
8851
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8852void http_txn_reset_req(struct http_txn *txn)
8853{
8854 txn->req.flags = 0;
8855 txn->req.sol = txn->req.eol = txn->req.eoh = 0; /* relative to the buffer */
8856 txn->req.next = 0;
8857 txn->req.chunk_len = 0LL;
8858 txn->req.body_len = 0LL;
8859 txn->req.msg_state = HTTP_MSG_RQBEFORE; /* at the very beginning of the request */
8860}
8861
8862void http_txn_reset_res(struct http_txn *txn)
8863{
8864 txn->rsp.flags = 0;
8865 txn->rsp.sol = txn->rsp.eol = txn->rsp.eoh = 0; /* relative to the buffer */
8866 txn->rsp.next = 0;
8867 txn->rsp.chunk_len = 0LL;
8868 txn->rsp.body_len = 0LL;
8869 txn->rsp.msg_state = HTTP_MSG_RPBEFORE; /* at the very beginning of the response */
8870}
8871
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8872/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8873 * Initialize a new HTTP transaction for stream <s>. It is assumed that all
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8874 * the required fields are properly allocated and that we only need to (re)init
8875 * them. This should be used before processing any new request.
8876 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8877void http_init_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8878{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8879 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8880 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8881
8882 txn->flags = 0;
8883 txn->status = -1;
8884
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]8885 txn->cookie_first_date = 0;
8886 txn->cookie_last_date = 0;
8887
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8888 txn->srv_cookie = NULL;
8889 txn->cli_cookie = NULL;
8890 txn->uri = NULL;
8891
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]8892 http_txn_reset_req(txn);
8893 http_txn_reset_res(txn);
8894
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8895 txn->req.chn = &s->req;
8896 txn->rsp.chn = &s->res;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8897
8898 txn->auth.method = HTTP_AUTH_UNKNOWN;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8899
8900 txn->req.err_pos = txn->rsp.err_pos = -2; /* block buggy requests/responses */
8901 if (fe->options2 & PR_O2_REQBUG_OK)
8902 txn->req.err_pos = -1; /* let buggy requests pass */
8903
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8904 if (txn->hdr_idx.v)
8905 hdr_idx_init(&txn->hdr_idx);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]8906
8907 vars_init(&s->vars_txn, SCOPE_TXN);
8908 vars_init(&s->vars_reqres, SCOPE_REQ);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8909}
8910
8911/* to be used at the end of a transaction */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8912void http_end_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8913{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]8914 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8915 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8916
8917 /* these ones will have been dynamically allocated */
8918 pool_free2(pool2_requri, txn->uri);
8919 pool_free2(pool2_capture, txn->cli_cookie);
8920 pool_free2(pool2_capture, txn->srv_cookie);
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]8921 pool_free2(pool2_uniqueid, s->unique_id);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]8922
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]8923 s->unique_id = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8924 txn->uri = NULL;
8925 txn->srv_cookie = NULL;
8926 txn->cli_cookie = NULL;
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8927
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8928 if (s->req_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8929 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8930 for (h = fe->req_cap; h; h = h->next)
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8931 pool_free2(h->pool, s->req_cap[h->index]);
8932 memset(s->req_cap, 0, fe->nb_req_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8933 }
8934
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8935 if (s->res_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8936 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]8937 for (h = fe->rsp_cap; h; h = h->next)
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]8938 pool_free2(h->pool, s->res_cap[h->index]);
8939 memset(s->res_cap, 0, fe->nb_rsp_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]8940 }
8941
Willy Tarreau6204cd92016-03-10 16:33:04 +0100[diff] [blame]8942 vars_prune(&s->vars_txn, s->sess, s);
8943 vars_prune(&s->vars_reqres, s->sess, s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8944}
8945
8946/* to be used at the end of a transaction to prepare a new one */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8947void http_reset_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8948{
8949 http_end_txn(s);
8950 http_init_txn(s);
8951
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]8952 /* reinitialise the current rule list pointer to NULL. We are sure that
8953 * any rulelist match the NULL pointer.
8954 */
8955 s->current_rule_list = NULL;
8956
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8957 s->be = strm_fe(s);
8958 s->logs.logwait = strm_fe(s)->to_log;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]8959 s->logs.level = 0;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]8960 stream_del_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]8961 s->target = NULL;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8962 /* re-init store persistence */
8963 s->store_count = 0;
Willy Tarreau1f0da242014-01-25 11:01:50 +0100[diff] [blame]8964 s->uniq_id = global.req_count++;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]8965
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8966 s->pend_pos = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8967
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8968 s->req.flags |= CF_READ_DONTWAIT; /* one read is usually enough */
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8969
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8970 /* We must trim any excess data from the response buffer, because we
8971 * may have blocked an invalid response from a server that we don't
8972 * want to accidentely forward once we disable the analysers, nor do
8973 * we want those data to come along with next response. A typical
8974 * example of such data would be from a buggy server responding to
8975 * a HEAD with some data, or sending more than the advertised
8976 * content-length.
8977 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8978 if (unlikely(s->res.buf->i))
8979 s->res.buf->i = 0;
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]8980
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8981 s->req.rto = strm_fe(s)->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8982 s->req.wto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8983
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8984 s->res.rto = TICK_ETERNITY;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8985 s->res.wto = strm_fe(s)->timeout.client;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8986
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8987 s->req.rex = TICK_ETERNITY;
8988 s->req.wex = TICK_ETERNITY;
8989 s->req.analyse_exp = TICK_ETERNITY;
8990 s->res.rex = TICK_ETERNITY;
8991 s->res.wex = TICK_ETERNITY;
8992 s->res.analyse_exp = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8993}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8994
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8995void free_http_res_rules(struct list *r)
8996{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8997 struct act_rule *tr, *pr;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8998
8999 list_for_each_entry_safe(pr, tr, r, list) {
9000 LIST_DEL(&pr->list);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]9001 regex_free(&pr->arg.hdr_add.re);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9002 free(pr);
9003 }
9004}
9005
9006void free_http_req_rules(struct list *r)
9007{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]9008 struct act_rule *tr, *pr;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9009
9010 list_for_each_entry_safe(pr, tr, r, list) {
9011 LIST_DEL(&pr->list);
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9012 if (pr->action == ACT_HTTP_REQ_AUTH)
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]9013 free(pr->arg.auth.realm);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9014
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]9015 regex_free(&pr->arg.hdr_add.re);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9016 free(pr);
9017 }
9018}
9019
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9020/* parse an "http-request" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]9021struct 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]9022{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]9023 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]9024 struct action_kw *custom = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9025 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]9026 char *error;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9027
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]9028 rule = calloc(1, sizeof(*rule));
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9029 if (!rule) {
9030 Alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9031 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9032 }
9033
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]9034 rule->deny_status = HTTP_ERR_403;
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]9035 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9036 rule->action = ACT_ACTION_ALLOW;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9037 cur_arg = 1;
Willy Tarreau5bd67592014-04-28 22:00:46 +0200[diff] [blame]9038 } else if (!strcmp(args[0], "deny") || !strcmp(args[0], "block")) {
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]9039 int code;
9040 int hc;
9041
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9042 rule->action = ACT_ACTION_DENY;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9043 cur_arg = 1;
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]9044 if (strcmp(args[cur_arg], "deny_status") == 0) {
9045 cur_arg++;
9046 if (!args[cur_arg]) {
9047 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing status code.\n",
9048 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
9049 goto out_err;
9050 }
9051
9052 code = atol(args[cur_arg]);
9053 cur_arg++;
9054 for (hc = 0; hc < HTTP_ERR_SIZE; hc++) {
9055 if (http_err_codes[hc] == code) {
9056 rule->deny_status = hc;
9057 break;
9058 }
9059 }
9060
9061 if (hc >= HTTP_ERR_SIZE) {
9062 Warning("parsing [%s:%d] : status code %d not handled, using default code 403.\n",
9063 file, linenum, code);
9064 }
9065 }
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]9066 } else if (!strcmp(args[0], "tarpit")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9067 rule->action = ACT_HTTP_REQ_TARPIT;
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]9068 cur_arg = 1;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9069 } else if (!strcmp(args[0], "auth")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9070 rule->action = ACT_HTTP_REQ_AUTH;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9071 cur_arg = 1;
9072
9073 while(*args[cur_arg]) {
9074 if (!strcmp(args[cur_arg], "realm")) {
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]9075 rule->arg.auth.realm = strdup(args[cur_arg + 1]);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9076 cur_arg+=2;
9077 continue;
9078 } else
9079 break;
9080 }
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]9081 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9082 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]9083 cur_arg = 1;
9084
9085 if (!*args[cur_arg] ||
9086 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9087 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer value).\n",
9088 file, linenum, args[0]);
9089 goto out_err;
9090 }
9091 rule->arg.nice = atoi(args[cur_arg]);
9092 if (rule->arg.nice < -1024)
9093 rule->arg.nice = -1024;
9094 else if (rule->arg.nice > 1024)
9095 rule->arg.nice = 1024;
9096 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]9097 } else if (!strcmp(args[0], "set-tos")) {
9098#ifdef IP_TOS
9099 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9100 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]9101 cur_arg = 1;
9102
9103 if (!*args[cur_arg] ||
9104 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9105 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
9106 file, linenum, args[0]);
9107 goto out_err;
9108 }
9109
9110 rule->arg.tos = strtol(args[cur_arg], &err, 0);
9111 if (err && *err != '\0') {
9112 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
9113 file, linenum, err, args[0]);
9114 goto out_err;
9115 }
9116 cur_arg++;
9117#else
9118 Alert("parsing [%s:%d]: 'http-request %s' is not supported on this platform (IP_TOS undefined).\n", file, linenum, args[0]);
9119 goto out_err;
9120#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]9121 } else if (!strcmp(args[0], "set-mark")) {
9122#ifdef SO_MARK
9123 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9124 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]9125 cur_arg = 1;
9126
9127 if (!*args[cur_arg] ||
9128 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9129 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
9130 file, linenum, args[0]);
9131 goto out_err;
9132 }
9133
9134 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
9135 if (err && *err != '\0') {
9136 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
9137 file, linenum, err, args[0]);
9138 goto out_err;
9139 }
9140 cur_arg++;
9141 global.last_checks |= LSTCHK_NETADM;
9142#else
9143 Alert("parsing [%s:%d]: 'http-request %s' is not supported on this platform (SO_MARK undefined).\n", file, linenum, args[0]);
9144 goto out_err;
9145#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9146 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9147 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9148 cur_arg = 1;
9149
9150 if (!*args[cur_arg] ||
9151 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9152 bad_log_level:
9153 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (log level name or 'silent').\n",
9154 file, linenum, args[0]);
9155 goto out_err;
9156 }
9157 if (strcmp(args[cur_arg], "silent") == 0)
9158 rule->arg.loglevel = -1;
9159 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
9160 goto bad_log_level;
9161 cur_arg++;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]9162 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9163 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]9164 cur_arg = 1;
9165
Willy Tarreau8d1c5162013-04-03 14:13:58 +0200[diff] [blame]9166 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9167 (*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]9168 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
9169 file, linenum, args[0]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9170 goto out_err;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]9171 }
9172
9173 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9174 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9175 LIST_INIT(&rule->arg.hdr_add.fmt);
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]9176
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]9177 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9178 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9179 if (!parse_logformat_string(args[cur_arg + 1], proxy, &rule->arg.hdr_add.fmt, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9180 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
9181 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
9182 file, linenum, args[0], error);
9183 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9184 goto out_err;
9185 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9186 free(proxy->conf.lfs_file);
9187 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9188 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]9189 cur_arg += 2;
Willy Tarreaub8543922014-06-17 18:58:26 +0200[diff] [blame]9190 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9191 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9192 cur_arg = 1;
9193
9194 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann92df3702014-06-24 11:10:00 +0200[diff] [blame]9195 (*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]9196 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 3 arguments.\n",
9197 file, linenum, args[0]);
9198 goto out_err;
9199 }
9200
9201 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9202 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9203 LIST_INIT(&rule->arg.hdr_add.fmt);
9204
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]9205 error = NULL;
9206 if (!regex_comp(args[cur_arg + 1], &rule->arg.hdr_add.re, 1, 1, &error)) {
9207 Alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
9208 args[cur_arg + 1], error);
9209 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9210 goto out_err;
9211 }
9212
9213 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9214 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9215 if (!parse_logformat_string(args[cur_arg + 2], proxy, &rule->arg.hdr_add.fmt, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9216 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
9217 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
9218 file, linenum, args[0], error);
9219 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9220 goto out_err;
9221 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9222
9223 free(proxy->conf.lfs_file);
9224 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9225 proxy->conf.lfs_line = proxy->conf.args.line;
9226 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9227 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9228 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9229 cur_arg = 1;
9230
9231 if (!*args[cur_arg] ||
9232 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9233 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
9234 file, linenum, args[0]);
9235 goto out_err;
9236 }
9237
9238 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9239 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9240
9241 proxy->conf.args.ctx = ARGC_HRQ;
9242 free(proxy->conf.lfs_file);
9243 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9244 proxy->conf.lfs_line = proxy->conf.args.line;
9245 cur_arg += 1;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]9246 } else if (strncmp(args[0], "track-sc", 8) == 0 &&
9247 args[0][9] == '\0' && args[0][8] >= '0' &&
Willy Tarreaue1cfc1f2014-10-17 11:53:05 +0200[diff] [blame]9248 args[0][8] < '0' + MAX_SESS_STKCTR) { /* track-sc 0..9 */
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]9249 struct sample_expr *expr;
9250 unsigned int where;
9251 char *err = NULL;
9252
9253 cur_arg = 1;
9254 proxy->conf.args.ctx = ARGC_TRK;
9255
9256 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
9257 if (!expr) {
9258 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
9259 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
9260 free(err);
9261 goto out_err;
9262 }
9263
9264 where = 0;
9265 if (proxy->cap & PR_CAP_FE)
9266 where |= SMP_VAL_FE_HRQ_HDR;
9267 if (proxy->cap & PR_CAP_BE)
9268 where |= SMP_VAL_BE_HRQ_HDR;
9269
9270 if (!(expr->fetch->val & where)) {
9271 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule :"
9272 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
9273 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
9274 args[cur_arg-1], sample_src_names(expr->fetch->use));
9275 free(expr);
9276 goto out_err;
9277 }
9278
9279 if (strcmp(args[cur_arg], "table") == 0) {
9280 cur_arg++;
9281 if (!args[cur_arg]) {
9282 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing table name.\n",
9283 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
9284 free(expr);
9285 goto out_err;
9286 }
9287 /* we copy the table name for now, it will be resolved later */
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]9288 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]9289 cur_arg++;
9290 }
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]9291 rule->arg.trk_ctr.expr = expr;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9292 rule->action = ACT_ACTION_TRK_SC0 + args[0][8] - '0';
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9293 } else if (strcmp(args[0], "redirect") == 0) {
9294 struct redirect_rule *redir;
Willy Tarreau6d4890c2013-11-18 18:04:25 +0100[diff] [blame]9295 char *errmsg = NULL;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9296
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9297 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]9298 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
9299 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
9300 goto out_err;
9301 }
9302
9303 /* this redirect rule might already contain a parsed condition which
9304 * we'll pass to the http-request rule.
9305 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9306 rule->action = ACT_HTTP_REDIR;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9307 rule->arg.redir = redir;
9308 rule->cond = redir->cond;
9309 redir->cond = NULL;
9310 cur_arg = 2;
9311 return rule;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9312 } else if (strncmp(args[0], "add-acl", 7) == 0) {
9313 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9314 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9315 /*
9316 * '+ 8' for 'add-acl('
9317 * '- 9' for 'add-acl(' + trailing ')'
9318 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9319 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9320
9321 cur_arg = 1;
9322
9323 if (!*args[cur_arg] ||
9324 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9325 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
9326 file, linenum, args[0]);
9327 goto out_err;
9328 }
9329
9330 LIST_INIT(&rule->arg.map.key);
9331 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9332 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9333 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9334 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
9335 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
9336 file, linenum, args[0], error);
9337 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9338 goto out_err;
9339 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9340 free(proxy->conf.lfs_file);
9341 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9342 proxy->conf.lfs_line = proxy->conf.args.line;
9343 cur_arg += 1;
9344 } else if (strncmp(args[0], "del-acl", 7) == 0) {
9345 /* http-request del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9346 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9347 /*
9348 * '+ 8' for 'del-acl('
9349 * '- 9' for 'del-acl(' + trailing ')'
9350 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9351 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9352
9353 cur_arg = 1;
9354
9355 if (!*args[cur_arg] ||
9356 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9357 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
9358 file, linenum, args[0]);
9359 goto out_err;
9360 }
9361
9362 LIST_INIT(&rule->arg.map.key);
9363 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9364 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9365 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9366 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
9367 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
9368 file, linenum, args[0], error);
9369 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9370 goto out_err;
9371 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9372 free(proxy->conf.lfs_file);
9373 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9374 proxy->conf.lfs_line = proxy->conf.args.line;
9375 cur_arg += 1;
9376 } else if (strncmp(args[0], "del-map", 7) == 0) {
9377 /* http-request del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9378 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9379 /*
9380 * '+ 8' for 'del-map('
9381 * '- 9' for 'del-map(' + trailing ')'
9382 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9383 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9384
9385 cur_arg = 1;
9386
9387 if (!*args[cur_arg] ||
9388 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9389 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
9390 file, linenum, args[0]);
9391 goto out_err;
9392 }
9393
9394 LIST_INIT(&rule->arg.map.key);
9395 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9396 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9397 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9398 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
9399 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
9400 file, linenum, args[0], error);
9401 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9402 goto out_err;
9403 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9404 free(proxy->conf.lfs_file);
9405 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9406 proxy->conf.lfs_line = proxy->conf.args.line;
9407 cur_arg += 1;
9408 } else if (strncmp(args[0], "set-map", 7) == 0) {
9409 /* http-request set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9410 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9411 /*
9412 * '+ 8' for 'set-map('
9413 * '- 9' for 'set-map(' + trailing ')'
9414 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9415 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9416
9417 cur_arg = 1;
9418
9419 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9420 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
9421 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
9422 file, linenum, args[0]);
9423 goto out_err;
9424 }
9425
9426 LIST_INIT(&rule->arg.map.key);
9427 LIST_INIT(&rule->arg.map.value);
9428 proxy->conf.args.ctx = ARGC_HRQ;
9429
9430 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9431 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9432 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9433 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
9434 Alert("parsing [%s:%d]: 'http-request %s' key: %s.\n",
9435 file, linenum, args[0], error);
9436 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9437 goto out_err;
9438 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9439
9440 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9441 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9442 if (!parse_logformat_string(args[cur_arg + 1], proxy, &rule->arg.map.value, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9443 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
9444 Alert("parsing [%s:%d]: 'http-request %s' pattern: %s.\n",
9445 file, linenum, args[0], error);
9446 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9447 goto out_err;
9448 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9449 free(proxy->conf.lfs_file);
9450 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9451 proxy->conf.lfs_line = proxy->conf.args.line;
9452
9453 cur_arg += 2;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9454 } else if (((custom = action_http_req_custom(args[0])) != NULL)) {
9455 char *errmsg = NULL;
9456 cur_arg = 1;
9457 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]9458 rule->from = ACT_F_HTTP_REQ;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]9459 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]9460 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9461 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
9462 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
9463 free(errmsg);
9464 goto out_err;
9465 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9466 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9467 action_build_list(&http_req_keywords.list, &trash);
9468 Alert("parsing [%s:%d]: 'http-request' expects 'allow', 'deny', 'auth', 'redirect', "
9469 "'tarpit', 'add-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9470 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', 'track-sc*'"
William Lallemand2e785f22016-05-25 01:48:42 +0200[diff] [blame]9471 "%s%s, but got '%s'%s.\n",
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9472 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9473 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9474 }
9475
9476 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
9477 struct acl_cond *cond;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]9478 char *errmsg = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9479
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]9480 if ((cond = build_acl_cond(file, linenum, proxy, args+cur_arg, &errmsg)) == NULL) {
9481 Alert("parsing [%s:%d] : error detected while parsing an 'http-request %s' condition : %s.\n",
9482 file, linenum, args[0], errmsg);
9483 free(errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9484 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9485 }
9486 rule->cond = cond;
9487 }
9488 else if (*args[cur_arg]) {
9489 Alert("parsing [%s:%d]: 'http-request %s' expects 'realm' for 'auth' or"
9490 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
9491 file, linenum, args[0], args[cur_arg]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9492 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9493 }
9494
9495 return rule;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]9496 out_err:
9497 free(rule);
9498 return NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]9499}
9500
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9501/* parse an "http-respose" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]9502struct 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]9503{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]9504 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]9505 struct action_kw *custom = NULL;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9506 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]9507 char *error;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9508
9509 rule = calloc(1, sizeof(*rule));
9510 if (!rule) {
9511 Alert("parsing [%s:%d]: out of memory.\n", file, linenum);
9512 goto out_err;
9513 }
9514
9515 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9516 rule->action = ACT_ACTION_ALLOW;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9517 cur_arg = 1;
9518 } else if (!strcmp(args[0], "deny")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9519 rule->action = ACT_ACTION_DENY;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9520 cur_arg = 1;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]9521 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9522 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]9523 cur_arg = 1;
9524
9525 if (!*args[cur_arg] ||
9526 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9527 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer value).\n",
9528 file, linenum, args[0]);
9529 goto out_err;
9530 }
9531 rule->arg.nice = atoi(args[cur_arg]);
9532 if (rule->arg.nice < -1024)
9533 rule->arg.nice = -1024;
9534 else if (rule->arg.nice > 1024)
9535 rule->arg.nice = 1024;
9536 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]9537 } else if (!strcmp(args[0], "set-tos")) {
9538#ifdef IP_TOS
9539 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9540 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]9541 cur_arg = 1;
9542
9543 if (!*args[cur_arg] ||
9544 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9545 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
9546 file, linenum, args[0]);
9547 goto out_err;
9548 }
9549
9550 rule->arg.tos = strtol(args[cur_arg], &err, 0);
9551 if (err && *err != '\0') {
9552 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
9553 file, linenum, err, args[0]);
9554 goto out_err;
9555 }
9556 cur_arg++;
9557#else
9558 Alert("parsing [%s:%d]: 'http-response %s' is not supported on this platform (IP_TOS undefined).\n", file, linenum, args[0]);
9559 goto out_err;
9560#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]9561 } else if (!strcmp(args[0], "set-mark")) {
9562#ifdef SO_MARK
9563 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9564 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]9565 cur_arg = 1;
9566
9567 if (!*args[cur_arg] ||
9568 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9569 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
9570 file, linenum, args[0]);
9571 goto out_err;
9572 }
9573
9574 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
9575 if (err && *err != '\0') {
9576 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
9577 file, linenum, err, args[0]);
9578 goto out_err;
9579 }
9580 cur_arg++;
9581 global.last_checks |= LSTCHK_NETADM;
9582#else
9583 Alert("parsing [%s:%d]: 'http-response %s' is not supported on this platform (SO_MARK undefined).\n", file, linenum, args[0]);
9584 goto out_err;
9585#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9586 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9587 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9588 cur_arg = 1;
9589
9590 if (!*args[cur_arg] ||
9591 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
9592 bad_log_level:
9593 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (log level name or 'silent').\n",
9594 file, linenum, args[0]);
9595 goto out_err;
9596 }
9597 if (strcmp(args[cur_arg], "silent") == 0)
9598 rule->arg.loglevel = -1;
Ruoshan Huangdd016782016-06-15 22:16:03 +0800[diff] [blame]9599 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]9600 goto bad_log_level;
9601 cur_arg++;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9602 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9603 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9604 cur_arg = 1;
9605
9606 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9607 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
9608 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
9609 file, linenum, args[0]);
9610 goto out_err;
9611 }
9612
9613 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9614 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9615 LIST_INIT(&rule->arg.hdr_add.fmt);
9616
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]9617 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9618 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9619 if (!parse_logformat_string(args[cur_arg + 1], proxy, &rule->arg.hdr_add.fmt, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9620 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
9621 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9622 file, linenum, args[0], error);
9623 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9624 goto out_err;
9625 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9626 free(proxy->conf.lfs_file);
9627 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9628 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9629 cur_arg += 2;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9630 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9631 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9632 cur_arg = 1;
9633
9634 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann12cb00b2014-08-08 17:29:06 +0200[diff] [blame]9635 (*args[cur_arg+3] && strcmp(args[cur_arg+3], "if") != 0 && strcmp(args[cur_arg+3], "unless") != 0)) {
9636 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 3 arguments.\n",
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9637 file, linenum, args[0]);
9638 goto out_err;
9639 }
9640
9641 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9642 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9643 LIST_INIT(&rule->arg.hdr_add.fmt);
9644
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]9645 error = NULL;
9646 if (!regex_comp(args[cur_arg + 1], &rule->arg.hdr_add.re, 1, 1, &error)) {
9647 Alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
9648 args[cur_arg + 1], error);
9649 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9650 goto out_err;
9651 }
9652
9653 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9654 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9655 if (!parse_logformat_string(args[cur_arg + 2], proxy, &rule->arg.hdr_add.fmt, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9656 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
9657 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9658 file, linenum, args[0], error);
9659 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9660 goto out_err;
9661 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]9662
9663 free(proxy->conf.lfs_file);
9664 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9665 proxy->conf.lfs_line = proxy->conf.args.line;
9666 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9667 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9668 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9669 cur_arg = 1;
9670
9671 if (!*args[cur_arg] ||
9672 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9673 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9674 file, linenum, args[0]);
9675 goto out_err;
9676 }
9677
9678 rule->arg.hdr_add.name = strdup(args[cur_arg]);
9679 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
9680
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9681 proxy->conf.args.ctx = ARGC_HRS;
9682 free(proxy->conf.lfs_file);
9683 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9684 proxy->conf.lfs_line = proxy->conf.args.line;
9685 cur_arg += 1;
9686 } else if (strncmp(args[0], "add-acl", 7) == 0) {
9687 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9688 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9689 /*
9690 * '+ 8' for 'add-acl('
9691 * '- 9' for 'add-acl(' + trailing ')'
9692 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9693 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9694
9695 cur_arg = 1;
9696
9697 if (!*args[cur_arg] ||
9698 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9699 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9700 file, linenum, args[0]);
9701 goto out_err;
9702 }
9703
9704 LIST_INIT(&rule->arg.map.key);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9705 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9706 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9707 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9708 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
9709 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9710 file, linenum, args[0], error);
9711 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9712 goto out_err;
9713 }
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9714 free(proxy->conf.lfs_file);
9715 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9716 proxy->conf.lfs_line = proxy->conf.args.line;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9717
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]9718 cur_arg += 1;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9719 } else if (strncmp(args[0], "del-acl", 7) == 0) {
9720 /* http-response del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9721 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9722 /*
9723 * '+ 8' for 'del-acl('
9724 * '- 9' for 'del-acl(' + trailing ')'
9725 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9726 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9727
9728 cur_arg = 1;
9729
9730 if (!*args[cur_arg] ||
9731 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9732 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9733 file, linenum, args[0]);
9734 goto out_err;
9735 }
9736
9737 LIST_INIT(&rule->arg.map.key);
9738 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9739 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9740 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9741 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
9742 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
9743 file, linenum, args[0], error);
9744 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9745 goto out_err;
9746 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9747 free(proxy->conf.lfs_file);
9748 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9749 proxy->conf.lfs_line = proxy->conf.args.line;
9750 cur_arg += 1;
9751 } else if (strncmp(args[0], "del-map", 7) == 0) {
9752 /* http-response del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9753 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9754 /*
9755 * '+ 8' for 'del-map('
9756 * '- 9' for 'del-map(' + trailing ')'
9757 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9758 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9759
9760 cur_arg = 1;
9761
9762 if (!*args[cur_arg] ||
9763 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
9764 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
9765 file, linenum, args[0]);
9766 goto out_err;
9767 }
9768
9769 LIST_INIT(&rule->arg.map.key);
9770 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9771 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9772 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9773 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
9774 Alert("parsing [%s:%d]: 'http-response %s' %s.\n",
9775 file, linenum, args[0], error);
9776 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9777 goto out_err;
9778 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9779 free(proxy->conf.lfs_file);
9780 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9781 proxy->conf.lfs_line = proxy->conf.args.line;
9782 cur_arg += 1;
9783 } else if (strncmp(args[0], "set-map", 7) == 0) {
9784 /* http-response set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9785 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9786 /*
9787 * '+ 8' for 'set-map('
9788 * '- 9' for 'set-map(' + trailing ')'
9789 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]9790 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9791
9792 cur_arg = 1;
9793
9794 if (!*args[cur_arg] || !*args[cur_arg+1] ||
9795 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
9796 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
9797 file, linenum, args[0]);
9798 goto out_err;
9799 }
9800
9801 LIST_INIT(&rule->arg.map.key);
9802 LIST_INIT(&rule->arg.map.value);
9803
9804 proxy->conf.args.ctx = ARGC_HRS;
9805
9806 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9807 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9808 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9809 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
9810 Alert("parsing [%s:%d]: 'http-response %s' name: %s.\n",
9811 file, linenum, args[0], error);
9812 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9813 goto out_err;
9814 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9815
9816 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9817 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9818 if (!parse_logformat_string(args[cur_arg + 1], proxy, &rule->arg.map.value, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]9819 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
9820 Alert("parsing [%s:%d]: 'http-response %s' value: %s.\n",
9821 file, linenum, args[0], error);
9822 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9823 goto out_err;
9824 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]9825
9826 free(proxy->conf.lfs_file);
9827 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
9828 proxy->conf.lfs_line = proxy->conf.args.line;
9829
9830 cur_arg += 2;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9831 } else if (strcmp(args[0], "redirect") == 0) {
9832 struct redirect_rule *redir;
9833 char *errmsg = NULL;
9834
9835 if ((redir = http_parse_redirect_rule(file, linenum, proxy, (const char **)args + 1, &errmsg, 1, 1)) == NULL) {
9836 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9837 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
9838 goto out_err;
9839 }
9840
9841 /* this redirect rule might already contain a parsed condition which
9842 * we'll pass to the http-request rule.
9843 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]9844 rule->action = ACT_HTTP_REDIR;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]9845 rule->arg.redir = redir;
9846 rule->cond = redir->cond;
9847 redir->cond = NULL;
9848 cur_arg = 2;
9849 return rule;
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9850 } else if (strncmp(args[0], "track-sc", 8) == 0 &&
9851 args[0][9] == '\0' && args[0][8] >= '0' &&
9852 args[0][8] < '0' + MAX_SESS_STKCTR) { /* track-sc 0..9 */
9853 struct sample_expr *expr;
9854 unsigned int where;
9855 char *err = NULL;
9856
9857 cur_arg = 1;
9858 proxy->conf.args.ctx = ARGC_TRK;
9859
9860 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
9861 if (!expr) {
9862 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9863 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
9864 free(err);
9865 goto out_err;
9866 }
9867
9868 where = 0;
9869 if (proxy->cap & PR_CAP_FE)
9870 where |= SMP_VAL_FE_HRS_HDR;
9871 if (proxy->cap & PR_CAP_BE)
9872 where |= SMP_VAL_BE_HRS_HDR;
9873
9874 if (!(expr->fetch->val & where)) {
9875 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule :"
9876 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
9877 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
9878 args[cur_arg-1], sample_src_names(expr->fetch->use));
9879 free(expr);
9880 goto out_err;
9881 }
9882
9883 if (strcmp(args[cur_arg], "table") == 0) {
9884 cur_arg++;
9885 if (!args[cur_arg]) {
9886 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : missing table name.\n",
9887 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
9888 free(expr);
9889 goto out_err;
9890 }
9891 /* we copy the table name for now, it will be resolved later */
9892 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
9893 cur_arg++;
9894 }
9895 rule->arg.trk_ctr.expr = expr;
9896 rule->action = ACT_ACTION_TRK_SC0 + args[0][8] - '0';
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9897 } else if (((custom = action_http_res_custom(args[0])) != NULL)) {
9898 char *errmsg = NULL;
9899 cur_arg = 1;
9900 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]9901 rule->from = ACT_F_HTTP_RES;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]9902 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]9903 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]9904 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
9905 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
9906 free(errmsg);
9907 goto out_err;
9908 }
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9909 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9910 action_build_list(&http_res_keywords.list, &trash);
9911 Alert("parsing [%s:%d]: 'http-response' expects 'allow', 'deny', 'redirect', "
9912 "'add-header', 'del-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]9913 "'set-tos', 'set-mark', 'set-log-level', 'add-acl', 'del-acl', 'del-map', 'set-map', 'track-sc*'"
William Lallemand2e785f22016-05-25 01:48:42 +0200[diff] [blame]9914 "%s%s, but got '%s'%s.\n",
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]9915 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]9916 goto out_err;
9917 }
9918
9919 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
9920 struct acl_cond *cond;
9921 char *errmsg = NULL;
9922
9923 if ((cond = build_acl_cond(file, linenum, proxy, args+cur_arg, &errmsg)) == NULL) {
9924 Alert("parsing [%s:%d] : error detected while parsing an 'http-response %s' condition : %s.\n",
9925 file, linenum, args[0], errmsg);
9926 free(errmsg);
9927 goto out_err;
9928 }
9929 rule->cond = cond;
9930 }
9931 else if (*args[cur_arg]) {
9932 Alert("parsing [%s:%d]: 'http-response %s' expects"
9933 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
9934 file, linenum, args[0], args[cur_arg]);
9935 goto out_err;
9936 }
9937
9938 return rule;
9939 out_err:
9940 free(rule);
9941 return NULL;
9942}
9943
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9944/* Parses a redirect rule. Returns the redirect rule on success or NULL on error,
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9945 * 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]9946 * dynamic log-format rule instead of a static string. Parameter <dir> indicates
9947 * the direction of the rule, and equals 0 for request, non-zero for responses.
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9948 */
9949struct redirect_rule *http_parse_redirect_rule(const char *file, int linenum, struct proxy *curproxy,
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9950 const char **args, char **errmsg, int use_fmt, int dir)
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9951{
9952 struct redirect_rule *rule;
9953 int cur_arg;
9954 int type = REDIRECT_TYPE_NONE;
9955 int code = 302;
9956 const char *destination = NULL;
9957 const char *cookie = NULL;
9958 int cookie_set = 0;
9959 unsigned int flags = REDIRECT_FLAG_NONE;
9960 struct acl_cond *cond = NULL;
9961
9962 cur_arg = 0;
9963 while (*(args[cur_arg])) {
9964 if (strcmp(args[cur_arg], "location") == 0) {
9965 if (!*args[cur_arg + 1])
9966 goto missing_arg;
9967
9968 type = REDIRECT_TYPE_LOCATION;
9969 cur_arg++;
9970 destination = args[cur_arg];
9971 }
9972 else if (strcmp(args[cur_arg], "prefix") == 0) {
9973 if (!*args[cur_arg + 1])
9974 goto missing_arg;
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9975 type = REDIRECT_TYPE_PREFIX;
9976 cur_arg++;
9977 destination = args[cur_arg];
9978 }
9979 else if (strcmp(args[cur_arg], "scheme") == 0) {
9980 if (!*args[cur_arg + 1])
9981 goto missing_arg;
9982
9983 type = REDIRECT_TYPE_SCHEME;
9984 cur_arg++;
9985 destination = args[cur_arg];
9986 }
9987 else if (strcmp(args[cur_arg], "set-cookie") == 0) {
9988 if (!*args[cur_arg + 1])
9989 goto missing_arg;
9990
9991 cur_arg++;
9992 cookie = args[cur_arg];
9993 cookie_set = 1;
9994 }
9995 else if (strcmp(args[cur_arg], "clear-cookie") == 0) {
9996 if (!*args[cur_arg + 1])
9997 goto missing_arg;
9998
9999 cur_arg++;
10000 cookie = args[cur_arg];
10001 cookie_set = 0;
10002 }
10003 else if (strcmp(args[cur_arg], "code") == 0) {
10004 if (!*args[cur_arg + 1])
10005 goto missing_arg;
10006
10007 cur_arg++;
10008 code = atol(args[cur_arg]);
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]10009 if (code < 301 || code > 308 || (code > 303 && code < 307)) {
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]10010 memprintf(errmsg,
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]10011 "'%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]10012 args[cur_arg - 1], args[cur_arg]);
10013 return NULL;
10014 }
10015 }
10016 else if (!strcmp(args[cur_arg],"drop-query")) {
10017 flags |= REDIRECT_FLAG_DROP_QS;
10018 }
10019 else if (!strcmp(args[cur_arg],"append-slash")) {
10020 flags |= REDIRECT_FLAG_APPEND_SLASH;
10021 }
10022 else if (strcmp(args[cur_arg], "if") == 0 ||
10023 strcmp(args[cur_arg], "unless") == 0) {
10024 cond = build_acl_cond(file, linenum, curproxy, (const char **)args + cur_arg, errmsg);
10025 if (!cond) {
10026 memprintf(errmsg, "error in condition: %s", *errmsg);
10027 return NULL;
10028 }
10029 break;
10030 }
10031 else {
10032 memprintf(errmsg,
10033 "expects 'code', 'prefix', 'location', 'scheme', 'set-cookie', 'clear-cookie', 'drop-query' or 'append-slash' (was '%s')",
10034 args[cur_arg]);
10035 return NULL;
10036 }
10037 cur_arg++;
10038 }
10039
10040 if (type == REDIRECT_TYPE_NONE) {
10041 memprintf(errmsg, "redirection type expected ('prefix', 'location', or 'scheme')");
10042 return NULL;
10043 }
10044
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]10045 if (dir && type != REDIRECT_TYPE_LOCATION) {
10046 memprintf(errmsg, "response only supports redirect type 'location'");
10047 return NULL;
10048 }
10049
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]10050 rule = calloc(1, sizeof(*rule));
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]10051 rule->cond = cond;
Willy Tarreau60e08382013-12-03 00:48:45 +0100[diff] [blame]10052 LIST_INIT(&rule->rdr_fmt);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]10053
10054 if (!use_fmt) {
10055 /* old-style static redirect rule */
10056 rule->rdr_str = strdup(destination);
10057 rule->rdr_len = strlen(destination);
10058 }
10059 else {
10060 /* log-format based redirect rule */
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]10061
10062 /* Parse destination. Note that in the REDIRECT_TYPE_PREFIX case,
10063 * if prefix == "/", we don't want to add anything, otherwise it
10064 * makes it hard for the user to configure a self-redirection.
10065 */
Godbachd9722032014-12-18 15:44:58 +0800[diff] [blame]10066 curproxy->conf.args.ctx = ARGC_RDR;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]10067 if (!(type == REDIRECT_TYPE_PREFIX && destination[0] == '/' && destination[1] == '\0')) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]10068 if (!parse_logformat_string(destination, curproxy, &rule->rdr_fmt, LOG_OPT_HTTP,
10069 dir ? (curproxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRS_HDR : SMP_VAL_BE_HRS_HDR
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]10070 : (curproxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
10071 errmsg)) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]10072 return NULL;
10073 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]10074 free(curproxy->conf.lfs_file);
10075 curproxy->conf.lfs_file = strdup(curproxy->conf.args.file);
10076 curproxy->conf.lfs_line = curproxy->conf.args.line;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]10077 }
10078 }
10079
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]10080 if (cookie) {
10081 /* depending on cookie_set, either we want to set the cookie, or to clear it.
10082 * a clear consists in appending "; path=/; Max-Age=0;" at the end.
10083 */
10084 rule->cookie_len = strlen(cookie);
10085 if (cookie_set) {
10086 rule->cookie_str = malloc(rule->cookie_len + 10);
10087 memcpy(rule->cookie_str, cookie, rule->cookie_len);
10088 memcpy(rule->cookie_str + rule->cookie_len, "; path=/;", 10);
10089 rule->cookie_len += 9;
10090 } else {
10091 rule->cookie_str = malloc(rule->cookie_len + 21);
10092 memcpy(rule->cookie_str, cookie, rule->cookie_len);
10093 memcpy(rule->cookie_str + rule->cookie_len, "; path=/; Max-Age=0;", 21);
10094 rule->cookie_len += 20;
10095 }
10096 }
10097 rule->type = type;
10098 rule->code = code;
10099 rule->flags = flags;
10100 LIST_INIT(&rule->list);
10101 return rule;
10102
10103 missing_arg:
10104 memprintf(errmsg, "missing argument for '%s'", args[cur_arg]);
10105 return NULL;
10106}
10107
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10108/************************************************************************/
10109/* The code below is dedicated to ACL parsing and matching */
10110/************************************************************************/
10111
10112
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10113/* This function ensures that the prerequisites for an L7 fetch are ready,
10114 * which means that a request or response is ready. If some data is missing,
10115 * 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]10116 * to extract data from L7. If <req_vol> is non-null during a request prefetch,
10117 * another test is made to ensure the required information is not gone.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10118 *
10119 * The function returns :
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]10120 * 0 with SMP_F_MAY_CHANGE in the sample flags if some data is missing to
10121 * decide whether or not an HTTP message is present ;
10122 * 0 if the requested data cannot be fetched or if it is certain that
10123 * we'll never have any HTTP message there ;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10124 * 1 if an HTTP message is ready
10125 */
James Rosewell91a41cb2015-09-18 17:11:16 +0100[diff] [blame]10126int smp_prefetch_http(struct proxy *px, struct stream *s, unsigned int opt,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10127 const struct arg *args, struct sample *smp, int req_vol)
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10128{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]10129 struct http_txn *txn;
10130 struct http_msg *msg;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10131
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10132 /* Note: it is possible that <s> is NULL when called before stream
10133 * initialization (eg: tcp-request connection), so this function is the
10134 * one responsible for guarding against this case for all HTTP users.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10135 */
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]10136 if (!s)
10137 return 0;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10138
Thierry FOURNIERed08d6a2015-09-24 08:40:18 +0200[diff] [blame]10139 if (!s->txn) {
10140 if (unlikely(!http_alloc_txn(s)))
10141 return 0; /* not enough memory */
10142 http_init_txn(s);
10143 }
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]10144 txn = s->txn;
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]10145 msg = &txn->req;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10146
10147 /* Check for a dependency on a request */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10148 smp->data.type = SMP_T_BOOL;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10149
Willy Tarreau32a6f2e2012-04-25 10:13:36 +0200[diff] [blame]10150 if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]10151 /* If the buffer does not leave enough free space at the end,
10152 * we must first realign it.
10153 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]10154 if (s->req.buf->p > s->req.buf->data &&
10155 s->req.buf->i + s->req.buf->p > s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)
10156 buffer_slow_realign(s->req.buf);
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]10157
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10158 if (unlikely(txn->req.msg_state < HTTP_MSG_BODY)) {
Willy Tarreau472b1ee2013-10-14 22:41:30 +0200[diff] [blame]10159 if (msg->msg_state == HTTP_MSG_ERROR)
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]10160 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10161
10162 /* Try to decode HTTP request */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]10163 if (likely(msg->next < s->req.buf->i))
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10164 http_msg_analyzer(msg, &txn->hdr_idx);
10165
10166 /* Still no valid request ? */
10167 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau3bf1b2b2012-08-27 20:46:07 +0200[diff] [blame]10168 if ((msg->msg_state == HTTP_MSG_ERROR) ||
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]10169 buffer_full(s->req.buf, global.tune.maxrewrite)) {
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]10170 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10171 }
10172 /* wait for final state */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10173 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10174 return 0;
10175 }
10176
10177 /* OK we just got a valid HTTP request. We have some minor
10178 * preparation to perform so that further checks can rely
10179 * on HTTP tests.
10180 */
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]10181
10182 /* If the request was parsed but was too large, we must absolutely
10183 * return an error so that it is not processed. At the moment this
10184 * cannot happen, but if the parsers are to change in the future,
10185 * we want this check to be maintained.
10186 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]10187 if (unlikely(s->req.buf->i + s->req.buf->p >
10188 s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]10189 msg->err_state = msg->msg_state;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]10190 msg->msg_state = HTTP_MSG_ERROR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10191 smp->data.u.sint = 1;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]10192 return 1;
10193 }
10194
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10195 txn->meth = find_http_meth(msg->chn->buf->p, msg->sl.rq.m_l);
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10196 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]10197 s->flags |= SF_REDIRECTABLE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10198
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]10199 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
10200 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10201 }
10202
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]10203 if (req_vol && txn->rsp.msg_state != HTTP_MSG_RPBEFORE) {
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10204 return 0; /* data might have moved and indexes changed */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]10205 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10206
10207 /* otherwise everything's ready for the request */
10208 }
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10209 else {
10210 /* Check for a dependency on a response */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]10211 if (txn->rsp.msg_state < HTTP_MSG_BODY) {
10212 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10213 return 0;
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]10214 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10215 }
10216
10217 /* everything's OK */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10218 smp->data.u.sint = 1;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]10219 return 1;
10220}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10221
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10222/* 1. Check on METHOD
10223 * We use the pre-parsed method if it is known, and store its number as an
10224 * integer. If it is unknown, we use the pointer and the length.
10225 */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]10226static int pat_parse_meth(const char *text, struct pattern *pattern, int mflags, char **err)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10227{
10228 int len, meth;
10229
Thierry FOURNIER580c32c2014-01-24 10:58:12 +0100[diff] [blame]10230 len = strlen(text);
10231 meth = find_http_meth(text, len);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10232
10233 pattern->val.i = meth;
10234 if (meth == HTTP_METH_OTHER) {
Willy Tarreau912c1192014-08-29 15:15:50 +0200[diff] [blame]10235 pattern->ptr.str = (char *)text;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10236 pattern->len = len;
10237 }
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]10238 else {
10239 pattern->ptr.str = NULL;
10240 pattern->len = 0;
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]10241 }
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10242 return 1;
10243}
10244
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]10245/* This function fetches the method of current HTTP request and stores
10246 * it in the global pattern struct as a chunk. There are two possibilities :
10247 * - if the method is known (not HTTP_METH_OTHER), its identifier is stored
10248 * in <len> and <ptr> is NULL ;
10249 * - if the method is unknown (HTTP_METH_OTHER), <ptr> points to the text and
10250 * <len> to its length.
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]10251 * This is intended to be used with pat_match_meth() only.
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]10252 */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]10253static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10254smp_fetch_meth(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10255{
10256 int meth;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10257 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10258
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10259 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10260
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10261 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10262 meth = txn->meth;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10263 smp->data.type = SMP_T_METH;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10264 smp->data.u.meth.meth = meth;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10265 if (meth == HTTP_METH_OTHER) {
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10266 if (txn->rsp.msg_state != HTTP_MSG_RPBEFORE)
10267 /* ensure the indexes are not affected */
10268 return 0;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10269 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10270 smp->data.u.meth.str.len = txn->req.sl.rq.m_l;
10271 smp->data.u.meth.str.str = txn->req.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10272 }
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10273 smp->flags |= SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10274 return 1;
10275}
10276
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]10277/* See above how the method is stored in the global pattern */
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]10278static struct pattern *pat_match_meth(struct sample *smp, struct pattern_expr *expr, int fill)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10279{
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]10280 int icase;
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]10281 struct pattern_list *lst;
10282 struct pattern *pattern;
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]10283
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]10284 list_for_each_entry(lst, &expr->patterns, list) {
10285 pattern = &lst->pat;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10286
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]10287 /* well-known method */
10288 if (pattern->val.i != HTTP_METH_OTHER) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10289 if (smp->data.u.meth.meth == pattern->val.i)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]10290 return pattern;
10291 else
10292 continue;
10293 }
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]10294
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]10295 /* Other method, we must compare the strings */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10296 if (pattern->len != smp->data.u.meth.str.len)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]10297 continue;
10298
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]10299 icase = expr->mflags & PAT_MF_IGNORE_CASE;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10300 if ((icase && strncasecmp(pattern->ptr.str, smp->data.u.meth.str.str, smp->data.u.meth.str.len) == 0) ||
10301 (!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]10302 return pattern;
10303 }
10304 return NULL;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10305}
10306
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]10307static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10308smp_fetch_rqver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10309{
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10310 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10311 char *ptr;
10312 int len;
10313
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10314 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10315
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10316 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10317 len = txn->req.sl.rq.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10318 ptr = txn->req.chn->buf->p + txn->req.sl.rq.v;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10319
10320 while ((len-- > 0) && (*ptr++ != '/'));
10321 if (len <= 0)
10322 return 0;
10323
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10324 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10325 smp->data.u.str.str = ptr;
10326 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10327
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10328 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10329 return 1;
10330}
10331
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]10332static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10333smp_fetch_stver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10334{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10335 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10336 char *ptr;
10337 int len;
10338
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10339 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10340
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10341 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]10342 if (txn->rsp.msg_state < HTTP_MSG_BODY)
10343 return 0;
10344
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10345 len = txn->rsp.sl.st.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10346 ptr = txn->rsp.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10347
10348 while ((len-- > 0) && (*ptr++ != '/'));
10349 if (len <= 0)
10350 return 0;
10351
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10352 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10353 smp->data.u.str.str = ptr;
10354 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10355
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10356 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10357 return 1;
10358}
10359
10360/* 3. Check on Status Code. We manipulate integers here. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]10361static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10362smp_fetch_stcode(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10363{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10364 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10365 char *ptr;
10366 int len;
10367
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10368 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10369
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10370 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]10371 if (txn->rsp.msg_state < HTTP_MSG_BODY)
10372 return 0;
10373
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10374 len = txn->rsp.sl.st.c_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10375 ptr = txn->rsp.chn->buf->p + txn->rsp.sl.st.c;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10376
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10377 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10378 smp->data.u.sint = __strl2ui(ptr, len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10379 smp->flags = SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10380 return 1;
10381}
10382
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]10383static int
10384smp_fetch_uniqueid(const struct arg *args, struct sample *smp, const char *kw, void *private)
10385{
10386 if (LIST_ISEMPTY(&smp->sess->fe->format_unique_id))
10387 return 0;
10388
10389 if (!smp->strm->unique_id) {
10390 if ((smp->strm->unique_id = pool_alloc2(pool2_uniqueid)) == NULL)
10391 return 0;
10392 smp->strm->unique_id[0] = '\0';
10393 }
10394 smp->data.u.str.len = build_logline(smp->strm, smp->strm->unique_id,
10395 UNIQUEID_LEN, &smp->sess->fe->format_unique_id);
10396
10397 smp->data.type = SMP_T_STR;
10398 smp->data.u.str.str = smp->strm->unique_id;
10399 smp->flags = SMP_F_CONST;
10400 return 1;
10401}
10402
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10403/* returns the longest available part of the body. This requires that the body
10404 * has been waited for using http-buffer-request.
10405 */
10406static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10407smp_fetch_body(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10408{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10409 struct http_msg *msg;
10410 unsigned long len;
10411 unsigned long block1;
10412 char *body;
10413 struct chunk *temp;
10414
10415 CHECK_HTTP_MESSAGE_FIRST();
10416
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10417 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10418 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10419 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10420 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10421
10422 len = http_body_bytes(msg);
10423 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
10424
10425 block1 = len;
10426 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
10427 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
10428
10429 if (block1 == len) {
10430 /* buffer is not wrapped (or empty) */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10431 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10432 smp->data.u.str.str = body;
10433 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10434 smp->flags = SMP_F_VOL_TEST | SMP_F_CONST;
10435 }
10436 else {
10437 /* buffer is wrapped, we need to defragment it */
10438 temp = get_trash_chunk();
10439 memcpy(temp->str, body, block1);
10440 memcpy(temp->str + block1, msg->chn->buf->data, len - block1);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10441 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10442 smp->data.u.str.str = temp->str;
10443 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10444 smp->flags = SMP_F_VOL_TEST;
10445 }
10446 return 1;
10447}
10448
10449
10450/* returns the available length of the body. This requires that the body
10451 * has been waited for using http-buffer-request.
10452 */
10453static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10454smp_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]10455{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10456 struct http_msg *msg;
10457
10458 CHECK_HTTP_MESSAGE_FIRST();
10459
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10460 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10461 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10462 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10463 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10464
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10465 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10466 smp->data.u.sint = http_body_bytes(msg);
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10467
10468 smp->flags = SMP_F_VOL_TEST;
10469 return 1;
10470}
10471
10472
10473/* returns the advertised length of the body, or the advertised size of the
10474 * chunks available in the buffer. This requires that the body has been waited
10475 * for using http-buffer-request.
10476 */
10477static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10478smp_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]10479{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10480 struct http_msg *msg;
10481
10482 CHECK_HTTP_MESSAGE_FIRST();
10483
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10484 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10485 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10486 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]10487 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10488
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10489 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10490 smp->data.u.sint = msg->body_len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]10491
10492 smp->flags = SMP_F_VOL_TEST;
10493 return 1;
10494}
10495
10496
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10497/* 4. Check on URL/URI. A pointer to the URI is stored. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]10498static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10499smp_fetch_url(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10500{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10501 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10502
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10503 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10504
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10505 txn = smp->strm->txn;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10506 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10507 smp->data.u.str.len = txn->req.sl.rq.u_l;
10508 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]10509 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10510 return 1;
10511}
10512
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10513static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10514smp_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]10515{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10516 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]10517 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10518
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10519 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10520
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10521 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]10522 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]10523 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
Willy Tarreauf4362b32011-12-16 17:49:52 +0100[diff] [blame]10524 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10525
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10526 smp->data.type = SMP_T_IPV4;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10527 smp->data.u.ipv4 = ((struct sockaddr_in *)&addr)->sin_addr;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10528 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10529 return 1;
10530}
10531
10532static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10533smp_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]10534{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10535 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]10536 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10537
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10538 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10539
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10540 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]10541 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]10542 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
10543 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10544
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10545 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10546 smp->data.u.sint = ntohs(((struct sockaddr_in *)&addr)->sin_port);
Willy Tarreau21e5b0e2012-04-23 19:25:44 +0200[diff] [blame]10547 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]10548 return 1;
10549}
10550
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10551/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
10552 * Accepts an optional argument of type string containing the header field name,
10553 * and an optional argument of type signed or unsigned integer to request an
10554 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10555 * headers are considered from the first one. It does not stop on commas and
10556 * returns full lines instead (useful for User-Agent or Date for example).
10557 */
10558static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10559smp_fetch_fhdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10560{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10561 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10562 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10563 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10564 int occ = 0;
10565 const char *name_str = NULL;
10566 int name_len = 0;
10567
10568 if (!ctx) {
10569 /* first call */
10570 ctx = &static_hdr_ctx;
10571 ctx->idx = 0;
10572 smp->ctx.a[0] = ctx;
10573 }
10574
10575 if (args) {
10576 if (args[0].type != ARGT_STR)
10577 return 0;
10578 name_str = args[0].data.str.str;
10579 name_len = args[0].data.str.len;
10580
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10581 if (args[1].type == ARGT_SINT)
10582 occ = args[1].data.sint;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10583 }
10584
10585 CHECK_HTTP_MESSAGE_FIRST();
10586
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10587 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10588 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]10589
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10590 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
10591 /* search for header from the beginning */
10592 ctx->idx = 0;
10593
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10594 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10595 /* no explicit occurrence and single fetch => last header by default */
10596 occ = -1;
10597
10598 if (!occ)
10599 /* prepare to report multiple occurrences for ACL fetches */
10600 smp->flags |= SMP_F_NOT_LAST;
10601
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10602 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10603 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10604 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]10605 return 1;
10606
10607 smp->flags &= ~SMP_F_NOT_LAST;
10608 return 0;
10609}
10610
10611/* 6. Check on HTTP header count. The number of occurrences is returned.
10612 * Accepts exactly 1 argument of type string. It does not stop on commas and
10613 * returns full lines instead (useful for User-Agent or Date for example).
10614 */
10615static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10616smp_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]10617{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10618 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10619 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10620 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10621 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10622 const char *name = NULL;
10623 int len = 0;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10624
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10625 if (args && args->type == ARGT_STR) {
10626 name = args->data.str.str;
10627 len = args->data.str.len;
10628 }
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10629
10630 CHECK_HTTP_MESSAGE_FIRST();
10631
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10632 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10633 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]10634
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10635 ctx.idx = 0;
10636 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10637 while (http_find_full_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10638 cnt++;
10639
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10640 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10641 smp->data.u.sint = cnt;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10642 smp->flags = SMP_F_VOL_HDR;
10643 return 1;
10644}
10645
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10646static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10647smp_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]10648{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10649 struct hdr_idx *idx;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10650 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10651 const struct http_msg *msg;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10652 struct chunk *temp;
10653 char del = ',';
10654
10655 if (args && args->type == ARGT_STR)
10656 del = *args[0].data.str.str;
10657
10658 CHECK_HTTP_MESSAGE_FIRST();
10659
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10660 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10661 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]10662
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10663 temp = get_trash_chunk();
10664
10665 ctx.idx = 0;
10666 while (http_find_next_header(msg->chn->buf->p, idx, &ctx)) {
10667 if (temp->len)
10668 temp->str[temp->len++] = del;
10669 memcpy(temp->str + temp->len, ctx.line, ctx.del);
10670 temp->len += ctx.del;
10671 }
10672
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10673 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10674 smp->data.u.str.str = temp->str;
10675 smp->data.u.str.len = temp->len;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]10676 smp->flags = SMP_F_VOL_HDR;
10677 return 1;
10678}
10679
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]10680/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
10681 * Accepts an optional argument of type string containing the header field name,
10682 * and an optional argument of type signed or unsigned integer to request an
10683 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10684 * headers are considered from the first one.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10685 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10686static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10687smp_fetch_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10688{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10689 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10690 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10691 const struct http_msg *msg;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10692 int occ = 0;
10693 const char *name_str = NULL;
10694 int name_len = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10695
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10696 if (!ctx) {
10697 /* first call */
10698 ctx = &static_hdr_ctx;
10699 ctx->idx = 0;
Willy Tarreauffb6f082013-04-02 23:16:53 +0200[diff] [blame]10700 smp->ctx.a[0] = ctx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10701 }
10702
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10703 if (args) {
10704 if (args[0].type != ARGT_STR)
10705 return 0;
10706 name_str = args[0].data.str.str;
10707 name_len = args[0].data.str.len;
10708
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10709 if (args[1].type == ARGT_SINT)
10710 occ = args[1].data.sint;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10711 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10712
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10713 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10714
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10715 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10716 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]10717
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10718 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10719 /* search for header from the beginning */
10720 ctx->idx = 0;
10721
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10722 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10723 /* no explicit occurrence and single fetch => last header by default */
10724 occ = -1;
10725
10726 if (!occ)
10727 /* prepare to report multiple occurrences for ACL fetches */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10728 smp->flags |= SMP_F_NOT_LAST;
Willy Tarreau664092c2011-12-16 19:11:42 +0100[diff] [blame]10729
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10730 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10731 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10732 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]10733 return 1;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10734
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10735 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10736 return 0;
10737}
10738
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10739/* 6. Check on HTTP header count. The number of occurrences is returned.
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10740 * Accepts exactly 1 argument of type string.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10741 */
10742static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10743smp_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]10744{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10745 struct hdr_idx *idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10746 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10747 const struct http_msg *msg;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10748 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10749 const char *name = NULL;
10750 int len = 0;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10751
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10752 if (args && args->type == ARGT_STR) {
10753 name = args->data.str.str;
10754 len = args->data.str.len;
10755 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10756
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10757 CHECK_HTTP_MESSAGE_FIRST();
10758
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10759 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10760 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]10761
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10762 ctx.idx = 0;
10763 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]10764 while (http_find_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10765 cnt++;
10766
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10767 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10768 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10769 smp->flags = SMP_F_VOL_HDR;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10770 return 1;
10771}
10772
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10773/* Fetch an HTTP header's integer value. The integer value is returned. It
10774 * takes a mandatory argument of type string and an optional one of type int
10775 * to designate a specific occurrence. It returns an unsigned integer, which
10776 * may or may not be appropriate for everything.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10777 */
10778static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10779smp_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]10780{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10781 int ret = smp_fetch_hdr(args, smp, kw, private);
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10782
Willy Tarreauf853c462012-04-23 18:53:56 +0200[diff] [blame]10783 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10784 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10785 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]10786 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10787
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10788 return ret;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10789}
10790
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10791/* Fetch an HTTP header's IP value. takes a mandatory argument of type string
10792 * and an optional one of type int to designate a specific occurrence.
10793 * It returns an IPv4 or IPv6 address.
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10794 */
10795static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10796smp_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]10797{
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10798 int ret;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10799
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10800 while ((ret = smp_fetch_hdr(args, smp, kw, private)) > 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10801 if (url2ipv4((char *)smp->data.u.str.str, &smp->data.u.ipv4)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10802 smp->data.type = SMP_T_IPV4;
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10803 break;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10804 } else {
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10805 struct chunk *temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10806 if (smp->data.u.str.len < temp->size - 1) {
10807 memcpy(temp->str, smp->data.u.str.str, smp->data.u.str.len);
10808 temp->str[smp->data.u.str.len] = '\0';
10809 if (inet_pton(AF_INET6, temp->str, &smp->data.u.ipv6)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10810 smp->data.type = SMP_T_IPV6;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]10811 break;
10812 }
10813 }
10814 }
10815
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10816 /* if the header doesn't match an IP address, fetch next one */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]10817 if (!(smp->flags & SMP_F_NOT_LAST))
10818 return 0;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10819 }
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]10820 return ret;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]10821}
10822
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10823/* 8. Check on URI PATH. A pointer to the PATH is stored. The path starts at
10824 * the first '/' after the possible hostname, and ends before the possible '?'.
10825 */
10826static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10827smp_fetch_path(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10828{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10829 struct http_txn *txn;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10830 char *ptr, *end;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]10831
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10832 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]10833
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10834 txn = smp->strm->txn;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10835 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]10836 ptr = http_get_path(txn);
10837 if (!ptr)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10838 return 0;
10839
10840 /* OK, we got the '/' ! */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10841 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10842 smp->data.u.str.str = ptr;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10843
10844 while (ptr < end && *ptr != '?')
10845 ptr++;
10846
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10847 smp->data.u.str.len = ptr - smp->data.u.str.str;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10848 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10849 return 1;
10850}
10851
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10852/* This produces a concatenation of the first occurrence of the Host header
10853 * followed by the path component if it begins with a slash ('/'). This means
10854 * that '*' will not be added, resulting in exactly the first Host entry.
10855 * If no Host header is found, then the path is returned as-is. The returned
10856 * 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]10857 * The returned sample is of type string.
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10858 */
10859static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10860smp_fetch_base(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10861{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10862 struct http_txn *txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10863 char *ptr, *end, *beg;
10864 struct hdr_ctx ctx;
Willy Tarreau3caf2af2014-06-24 17:27:02 +0200[diff] [blame]10865 struct chunk *temp;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10866
10867 CHECK_HTTP_MESSAGE_FIRST();
10868
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10869 txn = smp->strm->txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10870 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10871 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]10872 return smp_fetch_path(args, smp, kw, private);
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10873
10874 /* 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]10875 temp = get_trash_chunk();
10876 memcpy(temp->str, ctx.line + ctx.val, ctx.vlen);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10877 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10878 smp->data.u.str.str = temp->str;
10879 smp->data.u.str.len = ctx.vlen;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10880
10881 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10882 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]10883 beg = http_get_path(txn);
10884 if (!beg)
10885 beg = end;
10886
10887 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10888
10889 if (beg < ptr && *beg == '/') {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10890 memcpy(smp->data.u.str.str + smp->data.u.str.len, beg, ptr - beg);
10891 smp->data.u.str.len += ptr - beg;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10892 }
10893
10894 smp->flags = SMP_F_VOL_1ST;
10895 return 1;
10896}
10897
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10898/* This produces a 32-bit hash of the concatenation of the first occurrence of
10899 * the Host header followed by the path component if it begins with a slash ('/').
10900 * This means that '*' will not be added, resulting in exactly the first Host
10901 * 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]10902 * is hashed using the path hash followed by a full avalanche hash and provides a
10903 * 32-bit integer value. This fetch is useful for tracking per-path activity on
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10904 * high-traffic sites without having to store whole paths.
10905 */
Thierry FOURNIER055b9d52014-07-15 16:11:07 +0200[diff] [blame]10906int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10907smp_fetch_base32(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10908{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10909 struct http_txn *txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10910 struct hdr_ctx ctx;
10911 unsigned int hash = 0;
10912 char *ptr, *beg, *end;
10913 int len;
10914
10915 CHECK_HTTP_MESSAGE_FIRST();
10916
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10917 txn = smp->strm->txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10918 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10919 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]10920 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
10921 ptr = ctx.line + ctx.val;
10922 len = ctx.vlen;
10923 while (len--)
10924 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
10925 }
10926
10927 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10928 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]10929 beg = http_get_path(txn);
10930 if (!beg)
10931 beg = end;
10932
10933 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10934
10935 if (beg < ptr && *beg == '/') {
10936 while (beg < ptr)
10937 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
10938 }
10939 hash = full_hash(hash);
10940
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10941 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10942 smp->data.u.sint = hash;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10943 smp->flags = SMP_F_VOL_1ST;
10944 return 1;
10945}
10946
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10947/* 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]10948 * path as returned by smp_fetch_base32(). The idea is to have per-source and
10949 * per-path counters. The result is a binary block from 8 to 20 bytes depending
10950 * on the source address length. The path hash is stored before the address so
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10951 * that in environments where IPv6 is insignificant, truncating the output to
10952 * 8 bytes would still work.
10953 */
10954static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10955smp_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]10956{
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10957 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10958 struct connection *cli_conn = objt_conn(smp->sess->origin);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10959
10960 if (!cli_conn)
10961 return 0;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10962
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10963 if (!smp_fetch_base32(args, smp, kw, private))
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10964 return 0;
10965
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10966 temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10967 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
Willy Tarreau5ad6e1d2014-07-15 21:34:06 +0200[diff] [blame]10968 temp->len += sizeof(unsigned int);
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10969
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10970 switch (cli_conn->addr.from.ss_family) {
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10971 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10972 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]10973 temp->len += 4;
10974 break;
10975 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10976 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]10977 temp->len += 16;
10978 break;
10979 default:
10980 return 0;
10981 }
10982
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10983 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10984 smp->data.type = SMP_T_BIN;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10985 return 1;
10986}
10987
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10988/* Extracts the query string, which comes after the question mark '?'. If no
10989 * question mark is found, nothing is returned. Otherwise it returns a sample
10990 * of type string carrying the whole query string.
10991 */
10992static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10993smp_fetch_query(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10994{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10995 struct http_txn *txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10996 char *ptr, *end;
10997
10998 CHECK_HTTP_MESSAGE_FIRST();
10999
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11000 txn = smp->strm->txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]11001 ptr = txn->req.chn->buf->p + txn->req.sl.rq.u;
11002 end = ptr + txn->req.sl.rq.u_l;
11003
11004 /* look up the '?' */
11005 do {
11006 if (ptr == end)
11007 return 0;
11008 } while (*ptr++ != '?');
11009
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11010 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11011 smp->data.u.str.str = ptr;
11012 smp->data.u.str.len = end - ptr;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]11013 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
11014 return 1;
11015}
11016
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]11017static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11018smp_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]11019{
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]11020 /* Note: hdr_idx.v cannot be NULL in this ACL because the ACL is tagged
11021 * as a layer7 ACL, which involves automatic allocation of hdr_idx.
11022 */
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]11023
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11024 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]11025
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11026 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11027 smp->data.u.sint = 1;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]11028 return 1;
11029}
11030
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]11031/* return a valid test if the current request is the first one on the connection */
11032static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11033smp_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]11034{
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11035 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11036 smp->data.u.sint = !(smp->strm->txn->flags & TX_NOT_FIRST);
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]11037 return 1;
11038}
11039
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]11040/* Accepts exactly 1 argument of type userlist */
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]11041static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11042smp_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]11043{
11044
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11045 if (!args || args->type != ARGT_USR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]11046 return 0;
11047
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]11048 CHECK_HTTP_MESSAGE_FIRST();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]11049
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11050 if (!get_http_auth(smp->strm))
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]11051 return 0;
11052
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11053 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11054 smp->data.u.sint = check_user(args->data.usr, smp->strm->txn->auth.user,
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11055 smp->strm->txn->auth.pass);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]11056 return 1;
11057}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]11058
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]11059/* Accepts exactly 1 argument of type userlist */
11060static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11061smp_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]11062{
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]11063 if (!args || args->type != ARGT_USR)
11064 return 0;
11065
11066 CHECK_HTTP_MESSAGE_FIRST();
11067
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11068 if (!get_http_auth(smp->strm))
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]11069 return 0;
11070
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]11071 /* if the user does not belong to the userlist or has a wrong password,
11072 * report that it unconditionally does not match. Otherwise we return
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]11073 * a string containing the username.
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]11074 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11075 if (!check_user(args->data.usr, smp->strm->txn->auth.user,
11076 smp->strm->txn->auth.pass))
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]11077 return 0;
11078
11079 /* pat_match_auth() will need the user list */
11080 smp->ctx.a[0] = args->data.usr;
11081
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11082 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]11083 smp->flags = SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11084 smp->data.u.str.str = smp->strm->txn->auth.user;
11085 smp->data.u.str.len = strlen(smp->strm->txn->auth.user);
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]11086
11087 return 1;
11088}
11089
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11090/* Try to find the next occurrence of a cookie name in a cookie header value.
11091 * The lookup begins at <hdr>. The pointer and size of the next occurrence of
11092 * the cookie value is returned into *value and *value_l, and the function
11093 * returns a pointer to the next pointer to search from if the value was found.
11094 * Otherwise if the cookie was not found, NULL is returned and neither value
11095 * nor value_l are touched. The input <hdr> string should first point to the
11096 * header's value, and the <hdr_end> pointer must point to the first character
11097 * not part of the value. <list> must be non-zero if value may represent a list
11098 * of values (cookie headers). This makes it faster to abort parsing when no
11099 * list is expected.
11100 */
David Carlier4686f792015-09-25 14:10:50 +0100[diff] [blame]11101char *
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11102extract_cookie_value(char *hdr, const char *hdr_end,
11103 char *cookie_name, size_t cookie_name_l, int list,
Willy Tarreau3fb818c2012-04-11 17:21:08 +0200[diff] [blame]11104 char **value, int *value_l)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11105{
11106 char *equal, *att_end, *att_beg, *val_beg, *val_end;
11107 char *next;
11108
11109 /* we search at least a cookie name followed by an equal, and more
11110 * generally something like this :
11111 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
11112 */
11113 for (att_beg = hdr; att_beg + cookie_name_l + 1 < hdr_end; att_beg = next + 1) {
11114 /* Iterate through all cookies on this line */
11115
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]11116 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11117 att_beg++;
11118
11119 /* find att_end : this is the first character after the last non
11120 * space before the equal. It may be equal to hdr_end.
11121 */
11122 equal = att_end = att_beg;
11123
11124 while (equal < hdr_end) {
11125 if (*equal == '=' || *equal == ';' || (list && *equal == ','))
11126 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]11127 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11128 continue;
11129 att_end = equal;
11130 }
11131
11132 /* here, <equal> points to '=', a delimitor or the end. <att_end>
11133 * is between <att_beg> and <equal>, both may be identical.
11134 */
11135
11136 /* look for end of cookie if there is an equal sign */
11137 if (equal < hdr_end && *equal == '=') {
11138 /* look for the beginning of the value */
11139 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]11140 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11141 val_beg++;
11142
11143 /* find the end of the value, respecting quotes */
11144 next = find_cookie_value_end(val_beg, hdr_end);
11145
11146 /* make val_end point to the first white space or delimitor after the value */
11147 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]11148 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11149 val_end--;
11150 } else {
11151 val_beg = val_end = next = equal;
11152 }
11153
11154 /* We have nothing to do with attributes beginning with '$'. However,
11155 * they will automatically be removed if a header before them is removed,
11156 * since they're supposed to be linked together.
11157 */
11158 if (*att_beg == '$')
11159 continue;
11160
11161 /* Ignore cookies with no equal sign */
11162 if (equal == next)
11163 continue;
11164
11165 /* Now we have the cookie name between att_beg and att_end, and
11166 * its value between val_beg and val_end.
11167 */
11168
11169 if (att_end - att_beg == cookie_name_l &&
11170 memcmp(att_beg, cookie_name, cookie_name_l) == 0) {
11171 /* let's return this value and indicate where to go on from */
11172 *value = val_beg;
11173 *value_l = val_end - val_beg;
11174 return next + 1;
11175 }
11176
11177 /* Set-Cookie headers only have the name in the first attr=value part */
11178 if (!list)
11179 break;
11180 }
11181
11182 return NULL;
11183}
11184
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]11185/* Fetch a captured HTTP request header. The index is the position of
11186 * the "capture" option in the configuration file
11187 */
11188static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11189smp_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]11190{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11191 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]11192 int idx;
11193
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11194 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]11195 return 0;
11196
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11197 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]11198
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11199 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]11200 return 0;
11201
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11202 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]11203 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11204 smp->data.u.str.str = smp->strm->req_cap[idx];
11205 smp->data.u.str.len = strlen(smp->strm->req_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]11206
11207 return 1;
11208}
11209
11210/* Fetch a captured HTTP response header. The index is the position of
11211 * the "capture" option in the configuration file
11212 */
11213static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11214smp_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]11215{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11216 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]11217 int idx;
11218
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11219 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]11220 return 0;
11221
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11222 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]11223
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11224 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]11225 return 0;
11226
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11227 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]11228 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11229 smp->data.u.str.str = smp->strm->res_cap[idx];
11230 smp->data.u.str.len = strlen(smp->strm->res_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]11231
11232 return 1;
11233}
11234
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11235/* Extracts the METHOD in the HTTP request, the txn->uri should be filled before the call */
11236static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11237smp_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]11238{
11239 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11240 struct http_txn *txn = smp->strm->txn;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]11241 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11242
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11243 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11244 return 0;
11245
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]11246 ptr = txn->uri;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11247
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]11248 while (*ptr != ' ' && *ptr != '\0') /* find first space */
11249 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11250
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]11251 temp = get_trash_chunk();
11252 temp->str = txn->uri;
11253 temp->len = ptr - txn->uri;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11254 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11255 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]11256 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11257
11258 return 1;
11259
11260}
11261
11262/* Extracts the path in the HTTP request, the txn->uri should be filled before the call */
11263static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11264smp_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]11265{
11266 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11267 struct http_txn *txn = smp->strm->txn;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11268 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11269
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11270 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11271 return 0;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]11272
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11273 ptr = txn->uri;
11274
11275 while (*ptr != ' ' && *ptr != '\0') /* find first space */
11276 ptr++;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]11277
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11278 if (!*ptr)
11279 return 0;
11280
11281 ptr++; /* skip the space */
11282
11283 temp = get_trash_chunk();
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]11284 ptr = temp->str = http_get_path_from_string(ptr);
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11285 if (!ptr)
11286 return 0;
11287 while (*ptr != ' ' && *ptr != '\0') /* find space after URI */
11288 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11289
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11290 smp->data.u.str = *temp;
11291 smp->data.u.str.len = ptr - temp->str;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11292 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]11293 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11294
11295 return 1;
11296}
11297
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11298/* Retrieves the HTTP version from the request (either 1.0 or 1.1) and emits it
11299 * as a string (either "HTTP/1.0" or "HTTP/1.1").
11300 */
11301static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11302smp_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]11303{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11304 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11305
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11306 if (!txn || txn->req.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11307 return 0;
11308
11309 if (txn->req.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11310 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11311 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11312 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11313
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11314 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11315 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11316 smp->flags = SMP_F_CONST;
11317 return 1;
11318
11319}
11320
11321/* Retrieves the HTTP version from the response (either 1.0 or 1.1) and emits it
11322 * as a string (either "HTTP/1.0" or "HTTP/1.1").
11323 */
11324static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11325smp_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]11326{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11327 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11328
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11329 if (!txn || txn->rsp.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11330 return 0;
11331
11332 if (txn->rsp.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11333 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11334 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11335 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11336
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11337 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11338 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]11339 smp->flags = SMP_F_CONST;
11340 return 1;
11341
11342}
11343
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]11344
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11345/* Iterate over all cookies present in a message. The context is stored in
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11346 * 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]11347 * 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]11348 * the direction, multiple cookies may be parsed on the same line or not.
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11349 * 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]11350 * Accepts exactly 1 argument of type string. If the input options indicate
11351 * that no iterating is desired, then only last value is fetched if any.
William Lallemand07c8b242014-05-02 17:11:07 +0200[diff] [blame]11352 * The returned sample is of type CSTR. Can be used to parse cookies in other
11353 * files.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11354 */
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11355int 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]11356{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11357 struct http_txn *txn;
11358 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]11359 struct hdr_ctx *ctx = smp->ctx.a[2];
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11360 const struct http_msg *msg;
11361 const char *hdr_name;
11362 int hdr_name_len;
11363 char *sol;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11364 int occ = 0;
11365 int found = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11366
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11367 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]11368 return 0;
11369
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]11370 if (!ctx) {
11371 /* first call */
11372 ctx = &static_hdr_ctx;
11373 ctx->idx = 0;
11374 smp->ctx.a[2] = ctx;
11375 }
11376
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11377 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11378
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11379 txn = smp->strm->txn;
11380 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11381
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11382 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11383 msg = &txn->req;
11384 hdr_name = "Cookie";
11385 hdr_name_len = 6;
11386 } else {
11387 msg = &txn->rsp;
11388 hdr_name = "Set-Cookie";
11389 hdr_name_len = 10;
11390 }
11391
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11392 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11393 /* no explicit occurrence and single fetch => last cookie by default */
11394 occ = -1;
11395
11396 /* OK so basically here, either we want only one value and it's the
11397 * last one, or we want to iterate over all of them and we fetch the
11398 * next one.
11399 */
11400
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]11401 sol = msg->chn->buf->p;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11402 if (!(smp->flags & SMP_F_NOT_LAST)) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11403 /* search for the header from the beginning, we must first initialize
11404 * the search parameters.
11405 */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11406 smp->ctx.a[0] = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11407 ctx->idx = 0;
11408 }
11409
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11410 smp->flags |= SMP_F_VOL_HDR;
11411
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11412 while (1) {
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11413 /* Note: smp->ctx.a[0] == NULL every time we need to fetch a new header */
11414 if (!smp->ctx.a[0]) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11415 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, ctx))
11416 goto out;
11417
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11418 if (ctx->vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11419 continue;
11420
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11421 smp->ctx.a[0] = ctx->line + ctx->val;
11422 smp->ctx.a[1] = smp->ctx.a[0] + ctx->vlen;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11423 }
11424
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11425 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]11426 smp->flags |= SMP_F_CONST;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11427 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]11428 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11429 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11430 &smp->data.u.str.str,
11431 &smp->data.u.str.len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11432 if (smp->ctx.a[0]) {
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11433 found = 1;
11434 if (occ >= 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11435 /* one value was returned into smp->data.u.str.{str,len} */
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11436 smp->flags |= SMP_F_NOT_LAST;
11437 return 1;
11438 }
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11439 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11440 /* if we're looking for last occurrence, let's loop */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11441 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11442 /* all cookie headers and values were scanned. If we're looking for the
11443 * last occurrence, we may return it now.
11444 */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11445 out:
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11446 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]11447 return found;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11448}
11449
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11450/* Iterate over all cookies present in a request to count how many occurrences
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11451 * 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]11452 * multiple cookies may be parsed on the same line. The returned sample is of
11453 * type UINT. Accepts exactly 1 argument of type string.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11454 */
11455static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11456smp_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]11457{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11458 struct http_txn *txn;
11459 struct hdr_idx *idx;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11460 struct hdr_ctx ctx;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11461 const struct http_msg *msg;
11462 const char *hdr_name;
11463 int hdr_name_len;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11464 int cnt;
11465 char *val_beg, *val_end;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11466 char *sol;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11467
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11468 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]11469 return 0;
11470
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11471 CHECK_HTTP_MESSAGE_FIRST();
11472
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11473 txn = smp->strm->txn;
11474 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11475
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11476 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]11477 msg = &txn->req;
11478 hdr_name = "Cookie";
11479 hdr_name_len = 6;
11480 } else {
11481 msg = &txn->rsp;
11482 hdr_name = "Set-Cookie";
11483 hdr_name_len = 10;
11484 }
11485
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]11486 sol = msg->chn->buf->p;
Willy Tarreau46787ed2012-04-11 17:28:40 +0200[diff] [blame]11487 val_end = val_beg = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11488 ctx.idx = 0;
11489 cnt = 0;
11490
11491 while (1) {
11492 /* Note: val_beg == NULL every time we need to fetch a new header */
11493 if (!val_beg) {
11494 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, &ctx))
11495 break;
11496
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11497 if (ctx.vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11498 continue;
11499
11500 val_beg = ctx.line + ctx.val;
11501 val_end = val_beg + ctx.vlen;
11502 }
11503
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11504 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]11505 smp->flags |= SMP_F_CONST;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11506 while ((val_beg = extract_cookie_value(val_beg, val_end,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]11507 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11508 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11509 &smp->data.u.str.str,
11510 &smp->data.u.str.len))) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11511 cnt++;
11512 }
11513 }
11514
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11515 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11516 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]11517 smp->flags |= SMP_F_VOL_HDR;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]11518 return 1;
11519}
11520
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]11521/* Fetch an cookie's integer value. The integer value is returned. It
11522 * takes a mandatory argument of type string. It relies on smp_fetch_cookie().
11523 */
11524static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11525smp_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]11526{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11527 int ret = smp_fetch_cookie(args, smp, kw, private);
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]11528
11529 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11530 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11531 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]11532 }
11533
11534 return ret;
11535}
11536
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]11537/************************************************************************/
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]11538/* The code below is dedicated to sample fetches */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]11539/************************************************************************/
11540
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11541/*
11542 * Given a path string and its length, find the position of beginning of the
11543 * query string. Returns NULL if no query string is found in the path.
11544 *
11545 * Example: if path = "/foo/bar/fubar?yo=mama;ye=daddy", and n = 22:
11546 *
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11547 * find_query_string(path, n, '?') points to "yo=mama;ye=daddy" string.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11548 */
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11549static inline char *find_param_list(char *path, size_t path_l, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11550{
11551 char *p;
Emeric Brun485479d2010-09-23 18:02:19 +0200[diff] [blame]11552
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11553 p = memchr(path, delim, path_l);
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11554 return p ? p + 1 : NULL;
11555}
11556
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11557static inline int is_param_delimiter(char c, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11558{
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11559 return c == '&' || c == ';' || c == delim;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11560}
11561
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11562/* after increasing a pointer value, it can exceed the first buffer
11563 * size. This function transform the value of <ptr> according with
11564 * the expected position. <chunks> is an array of the one or two
11565 * avalaible chunks. The first value is the start of the first chunk,
11566 * the second value if the end+1 of the first chunks. The third value
11567 * is NULL or the start of the second chunk and the fourth value is
11568 * the end+1 of the second chunk. The function returns 1 if does a
11569 * wrap, else returns 0.
11570 */
11571static inline int fix_pointer_if_wrap(const char **chunks, const char **ptr)
11572{
11573 if (*ptr < chunks[1])
11574 return 0;
11575 if (!chunks[2])
11576 return 0;
11577 *ptr = chunks[2] + ( *ptr - chunks[1] );
11578 return 1;
11579}
11580
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11581/*
11582 * Given a url parameter, find the starting position of the first occurence,
11583 * or NULL if the parameter is not found.
11584 *
11585 * Example: if query_string is "yo=mama;ye=daddy" and url_param_name is "ye",
11586 * the function will return query_string+8.
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11587 *
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11588 * Warning: this function returns a pointer that can point to the first chunk
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11589 * or the second chunk. The caller must be check the position before using the
11590 * result.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11591 */
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11592static const char *
11593find_url_param_pos(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11594 const char* url_param_name, size_t url_param_name_l,
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11595 char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11596{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11597 const char *pos, *last, *equal;
11598 const char **bufs = chunks;
11599 int l1, l2;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11600
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11601
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11602 pos = bufs[0];
11603 last = bufs[1];
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11604 while (pos < last) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11605 /* Check the equal. */
11606 equal = pos + url_param_name_l;
11607 if (fix_pointer_if_wrap(chunks, &equal)) {
11608 if (equal >= chunks[3])
11609 return NULL;
11610 } else {
11611 if (equal >= chunks[1])
11612 return NULL;
11613 }
11614 if (*equal == '=') {
11615 if (pos + url_param_name_l > last) {
11616 /* process wrap case, we detect a wrap. In this case, the
11617 * comparison is performed in two parts.
11618 */
11619
11620 /* This is the end, we dont have any other chunk. */
11621 if (bufs != chunks || !bufs[2])
11622 return NULL;
11623
11624 /* Compute the length of each part of the comparison. */
11625 l1 = last - pos;
11626 l2 = url_param_name_l - l1;
11627
11628 /* The second buffer is too short to contain the compared string. */
11629 if (bufs[2] + l2 > bufs[3])
11630 return NULL;
11631
11632 if (memcmp(pos, url_param_name, l1) == 0 &&
11633 memcmp(bufs[2], url_param_name+l1, l2) == 0)
11634 return pos;
11635
11636 /* Perform wrapping and jump the string who fail the comparison. */
11637 bufs += 2;
11638 pos = bufs[0] + l2;
11639 last = bufs[1];
11640
11641 } else {
11642 /* process a simple comparison. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11643 if (memcmp(pos, url_param_name, url_param_name_l) == 0)
11644 return pos;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11645 pos += url_param_name_l + 1;
11646 if (fix_pointer_if_wrap(chunks, &pos))
11647 last = bufs[2];
11648 }
11649 }
11650
11651 while (1) {
11652 /* Look for the next delimiter. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11653 while (pos < last && !is_param_delimiter(*pos, delim))
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11654 pos++;
11655 if (pos < last)
11656 break;
11657 /* process buffer wrapping. */
11658 if (bufs != chunks || !bufs[2])
11659 return NULL;
11660 bufs += 2;
11661 pos = bufs[0];
11662 last = bufs[1];
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11663 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11664 pos++;
11665 }
11666 return NULL;
11667}
11668
11669/*
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11670 * Given a url parameter name and a query string, find the next value.
11671 * An empty url_param_name matches the first available parameter.
11672 * If the parameter is found, 1 is returned and *vstart / *vend are updated to
11673 * respectively provide a pointer to the value and its end.
11674 * Otherwise, 0 is returned and vstart/vend are not modified.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11675 */
11676static int
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11677find_next_url_param(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11678 const char* url_param_name, size_t url_param_name_l,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11679 const char **vstart, const char **vend, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11680{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11681 const char *arg_start, *qs_end;
11682 const char *value_start, *value_end;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11683
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11684 arg_start = chunks[0];
11685 qs_end = chunks[1];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11686 if (url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11687 /* Looks for an argument name. */
11688 arg_start = find_url_param_pos(chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11689 url_param_name, url_param_name_l,
11690 delim);
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11691 /* Check for wrapping. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11692 if (arg_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11693 qs_end = chunks[3];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11694 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11695 if (!arg_start)
11696 return 0;
11697
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11698 if (!url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11699 while (1) {
11700 /* looks for the first argument. */
11701 value_start = memchr(arg_start, '=', qs_end - arg_start);
11702 if (!value_start) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11703 /* Check for wrapping. */
11704 if (arg_start >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11705 arg_start < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11706 chunks[2]) {
11707 arg_start = chunks[2];
11708 qs_end = chunks[3];
11709 continue;
11710 }
11711 return 0;
11712 }
11713 break;
11714 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11715 value_start++;
11716 }
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11717 else {
11718 /* Jump the argument length. */
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11719 value_start = arg_start + url_param_name_l + 1;
11720
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11721 /* Check for pointer wrapping. */
11722 if (fix_pointer_if_wrap(chunks, &value_start)) {
11723 /* Update the end pointer. */
11724 qs_end = chunks[3];
11725
11726 /* Check for overflow. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11727 if (value_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11728 return 0;
11729 }
11730 }
11731
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11732 value_end = value_start;
11733
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11734 while (1) {
11735 while ((value_end < qs_end) && !is_param_delimiter(*value_end, delim))
11736 value_end++;
11737 if (value_end < qs_end)
11738 break;
11739 /* process buffer wrapping. */
11740 if (value_end >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]11741 value_end < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11742 chunks[2]) {
11743 value_end = chunks[2];
11744 qs_end = chunks[3];
11745 continue;
11746 }
11747 break;
11748 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11749
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11750 *vstart = value_start;
11751 *vend = value_end;
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]11752 return 1;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11753}
11754
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11755/* This scans a URL-encoded query string. It takes an optionally wrapping
11756 * string whose first contigous chunk has its beginning in ctx->a[0] and end
11757 * in ctx->a[1], and the optional second part in (ctx->a[2]..ctx->a[3]). The
11758 * pointers are updated for next iteration before leaving.
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11759 */
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11760static int
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11761smp_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]11762{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11763 const char *vstart, *vend;
11764 struct chunk *temp;
11765 const char **chunks = (const char **)smp->ctx.a;
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]11766
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11767 if (!find_next_url_param(chunks,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11768 name, name_len,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11769 &vstart, &vend,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]11770 delim))
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11771 return 0;
11772
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11773 /* Create sample. If the value is contiguous, return the pointer as CONST,
11774 * if the value is wrapped, copy-it in a buffer.
11775 */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11776 smp->data.type = SMP_T_STR;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11777 if (chunks[2] &&
11778 vstart >= chunks[0] && vstart <= chunks[1] &&
11779 vend >= chunks[2] && vend <= chunks[3]) {
11780 /* Wrapped case. */
11781 temp = get_trash_chunk();
11782 memcpy(temp->str, vstart, chunks[1] - vstart);
11783 memcpy(temp->str + ( chunks[1] - vstart ), chunks[2], vend - chunks[2]);
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11784 smp->data.u.str.str = temp->str;
11785 smp->data.u.str.len = ( chunks[1] - vstart ) + ( vend - chunks[2] );
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11786 } else {
11787 /* Contiguous case. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11788 smp->data.u.str.str = (char *)vstart;
11789 smp->data.u.str.len = vend - vstart;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11790 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
11791 }
11792
11793 /* Update context, check wrapping. */
11794 chunks[0] = vend;
11795 if (chunks[2] && vend >= chunks[2] && vend <= chunks[3]) {
11796 chunks[1] = chunks[3];
11797 chunks[2] = NULL;
11798 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11799
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11800 if (chunks[0] < chunks[1])
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]11801 smp->flags |= SMP_F_NOT_LAST;
11802
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]11803 return 1;
11804}
11805
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11806/* This function iterates over each parameter of the query string. It uses
11807 * 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]11808 * parameter. Since it uses smp_fetch_param(), ctx->a[2..3] are both NULL.
11809 * An optional parameter name is passed in args[0], otherwise any parameter is
11810 * considered. It supports an optional delimiter argument for the beginning of
11811 * the string in args[1], which defaults to "?".
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11812 */
11813static int
11814smp_fetch_url_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11815{
11816 struct http_msg *msg;
11817 char delim = '?';
11818 const char *name;
11819 int name_len;
11820
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11821 if (!args ||
11822 (args[0].type && args[0].type != ARGT_STR) ||
11823 (args[1].type && args[1].type != ARGT_STR))
11824 return 0;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11825
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11826 name = "";
11827 name_len = 0;
11828 if (args->type == ARGT_STR) {
11829 name = args->data.str.str;
11830 name_len = args->data.str.len;
11831 }
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11832
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11833 if (args[1].type)
11834 delim = *args[1].data.str.str;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11835
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]11836 if (!smp->ctx.a[0]) { // first call, find the query string
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11837 CHECK_HTTP_MESSAGE_FIRST();
11838
11839 msg = &smp->strm->txn->req;
11840
11841 smp->ctx.a[0] = find_param_list(msg->chn->buf->p + msg->sl.rq.u,
11842 msg->sl.rq.u_l, delim);
11843 if (!smp->ctx.a[0])
11844 return 0;
11845
11846 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]11847
11848 /* Assume that the context is filled with NULL pointer
11849 * before the first call.
11850 * smp->ctx.a[2] = NULL;
11851 * smp->ctx.a[3] = NULL;
11852 */
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11853 }
11854
11855 return smp_fetch_param(delim, name, name_len, args, smp, kw, private);
11856}
11857
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11858/* This function iterates over each parameter of the body. This requires
11859 * that the body has been waited for using http-buffer-request. It uses
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11860 * ctx->a[0] and ctx->a[1] to store the beginning and end of the first
11861 * contigous part of the body, and optionally ctx->a[2..3] to reference the
11862 * optional second part if the body wraps at the end of the buffer. An optional
11863 * parameter name is passed in args[0], otherwise any parameter is considered.
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11864 */
11865static int
11866smp_fetch_body_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11867{
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11868 struct http_msg *msg;
11869 unsigned long len;
11870 unsigned long block1;
11871 char *body;
11872 const char *name;
11873 int name_len;
11874
11875 if (!args || (args[0].type && args[0].type != ARGT_STR))
11876 return 0;
11877
11878 name = "";
11879 name_len = 0;
11880 if (args[0].type == ARGT_STR) {
11881 name = args[0].data.str.str;
11882 name_len = args[0].data.str.len;
11883 }
11884
11885 if (!smp->ctx.a[0]) { // first call, find the query string
11886 CHECK_HTTP_MESSAGE_FIRST();
11887
11888 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11889 msg = &smp->strm->txn->req;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11890 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11891 msg = &smp->strm->txn->rsp;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11892
11893 len = http_body_bytes(msg);
11894 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
11895
11896 block1 = len;
11897 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
11898 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
11899
11900 if (block1 == len) {
11901 /* buffer is not wrapped (or empty) */
11902 smp->ctx.a[0] = body;
11903 smp->ctx.a[1] = body + len;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11904
11905 /* Assume that the context is filled with NULL pointer
11906 * before the first call.
11907 * smp->ctx.a[2] = NULL;
11908 * smp->ctx.a[3] = NULL;
11909 */
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11910 }
11911 else {
11912 /* buffer is wrapped, we need to defragment it */
11913 smp->ctx.a[0] = body;
11914 smp->ctx.a[1] = body + block1;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11915 smp->ctx.a[2] = msg->chn->buf->data;
11916 smp->ctx.a[3] = msg->chn->buf->data + ( len - block1 );
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11917 }
11918 }
11919 return smp_fetch_param('&', name, name_len, args, smp, kw, private);
11920}
11921
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11922/* Return the signed integer value for the specified url parameter (see url_param
11923 * above).
11924 */
11925static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11926smp_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]11927{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11928 int ret = smp_fetch_url_param(args, smp, kw, private);
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11929
11930 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11931 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11932 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]11933 }
11934
11935 return ret;
11936}
11937
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11938/* This produces a 32-bit hash of the concatenation of the first occurrence of
11939 * the Host header followed by the path component if it begins with a slash ('/').
11940 * This means that '*' will not be added, resulting in exactly the first Host
11941 * entry. If no Host header is found, then the path is used. The resulting value
11942 * is hashed using the url hash followed by a full avalanche hash and provides a
11943 * 32-bit integer value. This fetch is useful for tracking per-URL activity on
11944 * high-traffic sites without having to store whole paths.
11945 * this differs from the base32 functions in that it includes the url parameters
11946 * as well as the path
11947 */
11948static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11949smp_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]11950{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11951 struct http_txn *txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11952 struct hdr_ctx ctx;
11953 unsigned int hash = 0;
11954 char *ptr, *beg, *end;
11955 int len;
11956
11957 CHECK_HTTP_MESSAGE_FIRST();
11958
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11959 txn = smp->strm->txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11960 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11961 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]11962 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
11963 ptr = ctx.line + ctx.val;
11964 len = ctx.vlen;
11965 while (len--)
11966 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
11967 }
11968
11969 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11970 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]11971 beg = http_get_path(txn);
11972 if (!beg)
11973 beg = end;
11974
11975 for (ptr = beg; ptr < end ; ptr++);
11976
11977 if (beg < ptr && *beg == '/') {
11978 while (beg < ptr)
11979 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
11980 }
11981 hash = full_hash(hash);
11982
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11983 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11984 smp->data.u.sint = hash;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11985 smp->flags = SMP_F_VOL_1ST;
11986 return 1;
11987}
11988
11989/* This concatenates the source address with the 32-bit hash of the Host and
11990 * URL as returned by smp_fetch_base32(). The idea is to have per-source and
11991 * per-url counters. The result is a binary block from 8 to 20 bytes depending
11992 * on the source address length. The URL hash is stored before the address so
11993 * that in environments where IPv6 is insignificant, truncating the output to
11994 * 8 bytes would still work.
11995 */
11996static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11997smp_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]11998{
11999 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]12000 struct connection *cli_conn = objt_conn(smp->sess->origin);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]12001
Dragan Dosendb5af612016-06-16 11:23:01 +0200[diff] [blame]12002 if (!cli_conn)
12003 return 0;
12004
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]12005 if (!smp_fetch_url32(args, smp, kw, private))
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]12006 return 0;
12007
12008 temp = get_trash_chunk();
Dragan Dosene5f41332016-06-16 11:08:08 +0200[diff] [blame]12009 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
12010 temp->len += sizeof(unsigned int);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]12011
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]12012 switch (cli_conn->addr.from.ss_family) {
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]12013 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]12014 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]12015 temp->len += 4;
12016 break;
12017 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]12018 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]12019 temp->len += 16;
12020 break;
12021 default:
12022 return 0;
12023 }
12024
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12025 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]12026 smp->data.type = SMP_T_BIN;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]12027 return 1;
12028}
12029
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]12030/* This function is used to validate the arguments passed to any "hdr" fetch
12031 * keyword. These keywords support an optional positive or negative occurrence
12032 * number. We must ensure that the number is greater than -MAX_HDR_HISTORY. It
12033 * is assumed that the types are already the correct ones. Returns 0 on error,
12034 * non-zero if OK. If <err> is not NULL, it will be filled with a pointer to an
12035 * error message in case of error, that the caller is responsible for freeing.
12036 * The initial location must either be freeable or NULL.
12037 */
Thierry FOURNIER49f45af2014-12-08 19:50:43 +0100[diff] [blame]12038int val_hdr(struct arg *arg, char **err_msg)
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]12039{
12040 if (arg && arg[1].type == ARGT_SINT && arg[1].data.sint < -MAX_HDR_HISTORY) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]12041 memprintf(err_msg, "header occurrence must be >= %d", -MAX_HDR_HISTORY);
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]12042 return 0;
12043 }
12044 return 1;
12045}
12046
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12047/* takes an UINT value on input supposed to represent the time since EPOCH,
12048 * adds an optional offset found in args[0] and emits a string representing
12049 * the date in RFC-1123/5322 format.
12050 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]12051static int sample_conv_http_date(const struct arg *args, struct sample *smp, void *private)
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12052{
Cyril Bontéf78d8962016-01-22 19:40:28 +0100[diff] [blame]12053 const char day[7][4] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12054 const char mon[12][4] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
12055 struct chunk *temp;
12056 struct tm *tm;
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12057 /* 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]12058 time_t curr_date = smp->data.u.sint & 0x007fffffffffffffLL;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12059
12060 /* add offset */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12061 if (args && (args[0].type == ARGT_SINT))
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12062 curr_date += args[0].data.sint;
12063
12064 tm = gmtime(&curr_date);
Thierry FOURNIERfac9ccf2015-07-08 00:15:20 +0200[diff] [blame]12065 if (!tm)
12066 return 0;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12067
12068 temp = get_trash_chunk();
12069 temp->len = snprintf(temp->str, temp->size - temp->len,
12070 "%s, %02d %s %04d %02d:%02d:%02d GMT",
12071 day[tm->tm_wday], tm->tm_mday, mon[tm->tm_mon], 1900+tm->tm_year,
12072 tm->tm_hour, tm->tm_min, tm->tm_sec);
12073
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12074 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]12075 smp->data.type = SMP_T_STR;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12076 return 1;
12077}
12078
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]12079/* Match language range with language tag. RFC2616 14.4:
12080 *
12081 * A language-range matches a language-tag if it exactly equals
12082 * the tag, or if it exactly equals a prefix of the tag such
12083 * that the first tag character following the prefix is "-".
12084 *
12085 * Return 1 if the strings match, else return 0.
12086 */
12087static inline int language_range_match(const char *range, int range_len,
12088 const char *tag, int tag_len)
12089{
12090 const char *end = range + range_len;
12091 const char *tend = tag + tag_len;
12092 while (range < end) {
12093 if (*range == '-' && tag == tend)
12094 return 1;
12095 if (*range != *tag || tag == tend)
12096 return 0;
12097 range++;
12098 tag++;
12099 }
12100 /* Return true only if the last char of the tag is matched. */
12101 return tag == tend;
12102}
12103
12104/* Arguments: The list of expected value, the number of parts returned and the separator */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]12105static int sample_conv_q_prefered(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]12106{
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12107 const char *al = smp->data.u.str.str;
12108 const char *end = al + smp->data.u.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]12109 const char *token;
12110 int toklen;
12111 int qvalue;
12112 const char *str;
12113 const char *w;
12114 int best_q = 0;
12115
12116 /* Set the constant to the sample, because the output of the
12117 * function will be peek in the constant configuration string.
12118 */
12119 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12120 smp->data.u.str.size = 0;
12121 smp->data.u.str.str = "";
12122 smp->data.u.str.len = 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]12123
12124 /* Parse the accept language */
12125 while (1) {
12126
12127 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]12128 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]12129 al++;
12130 if (al >= end)
12131 break;
12132
12133 /* Start of the fisrt word. */
12134 token = al;
12135
12136 /* Look for separator: isspace(), ',' or ';'. Next value if 0 length word. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]12137 while (al < end && *al != ';' && *al != ',' && !isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]12138 al++;
12139 if (al == token)
12140 goto expect_comma;
12141
12142 /* Length of the token. */
12143 toklen = al - token;
12144 qvalue = 1000;
12145
12146 /* Check if the token exists in the list. If the token not exists,
12147 * jump to the next token.
12148 */
12149 str = args[0].data.str.str;
12150 w = str;
12151 while (1) {
12152 if (*str == ';' || *str == '\0') {
12153 if (language_range_match(token, toklen, w, str-w))
12154 goto look_for_q;
12155 if (*str == '\0')
12156 goto expect_comma;
12157 w = str + 1;
12158 }
12159 str++;
12160 }
12161 goto expect_comma;
12162
12163look_for_q:
12164
12165 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]12166 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]12167 al++;
12168 if (al >= end)
12169 goto process_value;
12170
12171 /* If ',' is found, process the result */
12172 if (*al == ',')
12173 goto process_value;
12174
12175 /* If the character is different from ';', look
12176 * for the end of the header part in best effort.
12177 */
12178 if (*al != ';')
12179 goto expect_comma;
12180
12181 /* Assumes that the char is ';', now expect "q=". */
12182 al++;
12183
12184 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]12185 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]12186 al++;
12187 if (al >= end)
12188 goto process_value;
12189
12190 /* Expect 'q'. If no 'q', continue in best effort */
12191 if (*al != 'q')
12192 goto process_value;
12193 al++;
12194
12195 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]12196 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]12197 al++;
12198 if (al >= end)
12199 goto process_value;
12200
12201 /* Expect '='. If no '=', continue in best effort */
12202 if (*al != '=')
12203 goto process_value;
12204 al++;
12205
12206 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]12207 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]12208 al++;
12209 if (al >= end)
12210 goto process_value;
12211
12212 /* Parse the q value. */
12213 qvalue = parse_qvalue(al, &al);
12214
12215process_value:
12216
12217 /* If the new q value is the best q value, then store the associated
12218 * language in the response. If qvalue is the biggest value (1000),
12219 * break the process.
12220 */
12221 if (qvalue > best_q) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12222 smp->data.u.str.str = (char *)w;
12223 smp->data.u.str.len = str - w;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]12224 if (qvalue >= 1000)
12225 break;
12226 best_q = qvalue;
12227 }
12228
12229expect_comma:
12230
12231 /* Expect comma or end. If the end is detected, quit the loop. */
12232 while (al < end && *al != ',')
12233 al++;
12234 if (al >= end)
12235 break;
12236
12237 /* Comma is found, jump it and restart the analyzer. */
12238 al++;
12239 }
12240
12241 /* Set default value if required. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12242 if (smp->data.u.str.len == 0 && args[1].type == ARGT_STR) {
12243 smp->data.u.str.str = args[1].data.str.str;
12244 smp->data.u.str.len = args[1].data.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]12245 }
12246
12247 /* Return true only if a matching language was found. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12248 return smp->data.u.str.len != 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]12249}
12250
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]12251/* This fetch url-decode any input string. */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]12252static int sample_conv_url_dec(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]12253{
12254 /* If the constant flag is set or if not size is avalaible at
12255 * the end of the buffer, copy the string in other buffer
12256 * before decoding.
12257 */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12258 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]12259 struct chunk *str = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12260 memcpy(str->str, smp->data.u.str.str, smp->data.u.str.len);
12261 smp->data.u.str.str = str->str;
12262 smp->data.u.str.size = str->size;
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]12263 smp->flags &= ~SMP_F_CONST;
12264 }
12265
12266 /* Add final \0 required by url_decode(), and convert the input string. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12267 smp->data.u.str.str[smp->data.u.str.len] = '\0';
12268 smp->data.u.str.len = url_decode(smp->data.u.str.str);
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]12269 return 1;
12270}
12271
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12272static int smp_conv_req_capture(const struct arg *args, struct sample *smp, void *private)
12273{
12274 struct proxy *fe = strm_fe(smp->strm);
12275 int idx, i;
12276 struct cap_hdr *hdr;
12277 int len;
12278
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12279 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12280 return 0;
12281
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12282 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12283
12284 /* Check the availibity of the capture id. */
12285 if (idx > fe->nb_req_cap - 1)
12286 return 0;
12287
12288 /* Look for the original configuration. */
12289 for (hdr = fe->req_cap, i = fe->nb_req_cap - 1;
12290 hdr != NULL && i != idx ;
12291 i--, hdr = hdr->next);
12292 if (!hdr)
12293 return 0;
12294
12295 /* check for the memory allocation */
12296 if (smp->strm->req_cap[hdr->index] == NULL)
12297 smp->strm->req_cap[hdr->index] = pool_alloc2(hdr->pool);
12298 if (smp->strm->req_cap[hdr->index] == NULL)
12299 return 0;
12300
12301 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12302 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12303 if (len > hdr->len)
12304 len = hdr->len;
12305
12306 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12307 memcpy(smp->strm->req_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12308 smp->strm->req_cap[idx][len] = '\0';
12309
12310 return 1;
12311}
12312
12313static int smp_conv_res_capture(const struct arg *args, struct sample *smp, void *private)
12314{
12315 struct proxy *fe = strm_fe(smp->strm);
12316 int idx, i;
12317 struct cap_hdr *hdr;
12318 int len;
12319
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12320 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12321 return 0;
12322
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12323 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12324
12325 /* Check the availibity of the capture id. */
12326 if (idx > fe->nb_rsp_cap - 1)
12327 return 0;
12328
12329 /* Look for the original configuration. */
12330 for (hdr = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
12331 hdr != NULL && i != idx ;
12332 i--, hdr = hdr->next);
12333 if (!hdr)
12334 return 0;
12335
12336 /* check for the memory allocation */
12337 if (smp->strm->res_cap[hdr->index] == NULL)
12338 smp->strm->res_cap[hdr->index] = pool_alloc2(hdr->pool);
12339 if (smp->strm->res_cap[hdr->index] == NULL)
12340 return 0;
12341
12342 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12343 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12344 if (len > hdr->len)
12345 len = hdr->len;
12346
12347 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12348 memcpy(smp->strm->res_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12349 smp->strm->res_cap[idx][len] = '\0';
12350
12351 return 1;
12352}
12353
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12354/* This function executes one of the set-{method,path,query,uri} actions. It
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12355 * takes the string from the variable 'replace' with length 'len', then modifies
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12356 * the relevant part of the request line accordingly. Then it updates various
12357 * pointers to the next elements which were moved, and the total buffer length.
12358 * It finds the action to be performed in p[2], previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12359 * parse_set_req_line(). It returns 0 in case of success, -1 in case of internal
12360 * error, though this can be revisited when this code is finally exploited.
12361 *
12362 * 'action' can be '0' to replace method, '1' to replace path, '2' to replace
12363 * query string and 3 to replace uri.
12364 *
12365 * In query string case, the mark question '?' must be set at the start of the
12366 * string by the caller, event if the replacement query string is empty.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12367 */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12368int http_replace_req_line(int action, const char *replace, int len,
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]12369 struct proxy *px, struct stream *s)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12370{
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]12371 struct http_txn *txn = s->txn;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12372 char *cur_ptr, *cur_end;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12373 int offset = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12374 int delta;
12375
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12376 switch (action) {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12377 case 0: // method
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]12378 cur_ptr = s->req.buf->p;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12379 cur_end = cur_ptr + txn->req.sl.rq.m_l;
12380
12381 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12382 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12383 txn->req.sl.rq.m_l += delta;
12384 txn->req.sl.rq.u += delta;
12385 txn->req.sl.rq.v += delta;
12386 break;
12387
12388 case 1: // path
12389 cur_ptr = http_get_path(txn);
12390 if (!cur_ptr)
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]12391 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12392
12393 cur_end = cur_ptr;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]12394 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]12395 cur_end++;
12396
12397 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12398 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12399 txn->req.sl.rq.u_l += delta;
12400 txn->req.sl.rq.v += delta;
12401 break;
12402
12403 case 2: // query
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12404 offset = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]12405 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12406 cur_end = cur_ptr + txn->req.sl.rq.u_l;
12407 while (cur_ptr < cur_end && *cur_ptr != '?')
12408 cur_ptr++;
12409
12410 /* skip the question mark or indicate that we must insert it
12411 * (but only if the format string is not empty then).
12412 */
12413 if (cur_ptr < cur_end)
12414 cur_ptr++;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12415 else if (len > 1)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12416 offset = 0;
12417
12418 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12419 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12420 txn->req.sl.rq.u_l += delta;
12421 txn->req.sl.rq.v += delta;
12422 break;
12423
12424 case 3: // uri
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]12425 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12426 cur_end = cur_ptr + txn->req.sl.rq.u_l;
12427
12428 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12429 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12430 txn->req.sl.rq.u_l += delta;
12431 txn->req.sl.rq.v += delta;
12432 break;
12433
12434 default:
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12435 return -1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12436 }
12437
12438 /* commit changes and adjust end of message */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12439 delta = buffer_replace2(s->req.buf, cur_ptr, cur_end, replace + offset, len - offset);
Thierry FOURNIER7f6192c2015-04-26 18:01:40 +0200[diff] [blame]12440 txn->req.sl.rq.l += delta;
12441 txn->hdr_idx.v[0].len += delta;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12442 http_msg_move_end(&txn->req, delta);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12443 return 0;
12444}
12445
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12446/* This function replace the HTTP status code and the associated message. The
12447 * variable <status> contains the new status code. This function never fails.
12448 */
12449void http_set_status(unsigned int status, struct stream *s)
12450{
12451 struct http_txn *txn = s->txn;
12452 char *cur_ptr, *cur_end;
12453 int delta;
12454 char *res;
12455 int c_l;
12456 const char *msg;
12457 int msg_len;
12458
12459 chunk_reset(&trash);
12460
12461 res = ultoa_o(status, trash.str, trash.size);
12462 c_l = res - trash.str;
12463
12464 trash.str[c_l] = ' ';
12465 trash.len = c_l + 1;
12466
12467 msg = get_reason(status);
12468 msg_len = strlen(msg);
12469
12470 strncpy(&trash.str[trash.len], msg, trash.size - trash.len);
12471 trash.len += msg_len;
12472
12473 cur_ptr = s->res.buf->p + txn->rsp.sl.st.c;
12474 cur_end = s->res.buf->p + txn->rsp.sl.st.r + txn->rsp.sl.st.r_l;
12475
12476 /* commit changes and adjust message */
12477 delta = buffer_replace2(s->res.buf, cur_ptr, cur_end, trash.str, trash.len);
12478
12479 /* adjust res line offsets and lengths */
12480 txn->rsp.sl.st.r += c_l - txn->rsp.sl.st.c_l;
12481 txn->rsp.sl.st.c_l = c_l;
12482 txn->rsp.sl.st.r_l = msg_len;
12483
12484 delta = trash.len - (cur_end - cur_ptr);
12485 txn->rsp.sl.st.l += delta;
12486 txn->hdr_idx.v[0].len += delta;
12487 http_msg_move_end(&txn->rsp, delta);
12488}
12489
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12490/* This function executes one of the set-{method,path,query,uri} actions. It
12491 * builds a string in the trash from the specified format string. It finds
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]12492 * the action to be performed in <http.action>, previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12493 * parse_set_req_line(). The replacement action is excuted by the function
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]12494 * http_action_set_req_line(). It always returns ACT_RET_CONT. If an error
12495 * occurs the action is canceled, but the rule processing continue.
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12496 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12497enum act_return http_action_set_req_line(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 FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12499{
12500 chunk_reset(&trash);
12501
12502 /* If we have to create a query string, prepare a '?'. */
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12503 if (rule->arg.http.action == 2)
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]12504 trash.str[trash.len++] = '?';
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12505 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]12506
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12507 http_replace_req_line(rule->arg.http.action, trash.str, trash.len, px, s);
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12508 return ACT_RET_CONT;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12509}
12510
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12511/* This function is just a compliant action wrapper for "set-status". */
12512enum act_return action_http_set_status(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12513 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12514{
12515 http_set_status(rule->arg.status.code, s);
12516 return ACT_RET_CONT;
12517}
12518
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12519/* parse an http-request action among :
12520 * set-method
12521 * set-path
12522 * set-query
12523 * set-uri
12524 *
12525 * All of them accept a single argument of type string representing a log-format.
12526 * The resulting rule makes use of arg->act.p[0..1] to store the log-format list
12527 * 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]12528 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12529 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12530enum act_parse_ret parse_set_req_line(const char **args, int *orig_arg, struct proxy *px,
12531 struct act_rule *rule, char **err)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12532{
12533 int cur_arg = *orig_arg;
12534
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12535 rule->action = ACT_CUSTOM;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12536
12537 switch (args[0][4]) {
12538 case 'm' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12539 rule->arg.http.action = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12540 rule->action_ptr = http_action_set_req_line;
12541 break;
12542 case 'p' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12543 rule->arg.http.action = 1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12544 rule->action_ptr = http_action_set_req_line;
12545 break;
12546 case 'q' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12547 rule->arg.http.action = 2;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12548 rule->action_ptr = http_action_set_req_line;
12549 break;
12550 case 'u' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12551 rule->arg.http.action = 3;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12552 rule->action_ptr = http_action_set_req_line;
12553 break;
12554 default:
12555 memprintf(err, "internal error: unhandled action '%s'", args[0]);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12556 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12557 }
12558
12559 if (!*args[cur_arg] ||
12560 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
12561 memprintf(err, "expects exactly 1 argument <format>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12562 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12563 }
12564
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]12565 LIST_INIT(&rule->arg.http.logfmt);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12566 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]12567 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.http.logfmt, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]12568 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, err)) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]12569 return ACT_RET_PRS_ERR;
12570 }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12571
12572 (*orig_arg)++;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12573 return ACT_RET_PRS_OK;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12574}
12575
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12576/* parse set-status action:
12577 * This action accepts a single argument of type int representing
12578 * an http status code. It returns ACT_RET_PRS_OK on success,
12579 * ACT_RET_PRS_ERR on error.
12580 */
12581enum act_parse_ret parse_http_set_status(const char **args, int *orig_arg, struct proxy *px,
12582 struct act_rule *rule, char **err)
12583{
12584 char *error;
12585
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12586 rule->action = ACT_CUSTOM;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12587 rule->action_ptr = action_http_set_status;
12588
12589 /* Check if an argument is available */
12590 if (!*args[*orig_arg]) {
12591 memprintf(err, "expects exactly 1 argument <status>");
12592 return ACT_RET_PRS_ERR;
12593 }
12594
12595 /* convert status code as integer */
12596 rule->arg.status.code = strtol(args[*orig_arg], &error, 10);
12597 if (*error != '\0' || rule->arg.status.code < 100 || rule->arg.status.code > 999) {
12598 memprintf(err, "expects an integer status code between 100 and 999");
12599 return ACT_RET_PRS_ERR;
12600 }
12601
12602 (*orig_arg)++;
12603 return ACT_RET_PRS_OK;
12604}
12605
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12606/* This function executes the "capture" action. It executes a fetch expression,
12607 * turns the result into a string and puts it in a capture slot. It always
12608 * returns 1. If an error occurs the action is cancelled, but the rule
12609 * processing continues.
12610 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12611enum act_return http_action_req_capture(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]12612 struct session *sess, struct stream *s, int flags)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12613{
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12614 struct sample *key;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12615 struct cap_hdr *h = rule->arg.cap.hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12616 char **cap = s->req_cap;
12617 int len;
12618
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12619 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]12620 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12621 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12622
12623 if (cap[h->index] == NULL)
12624 cap[h->index] = pool_alloc2(h->pool);
12625
12626 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12627 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12628
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12629 len = key->data.u.str.len;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12630 if (len > h->len)
12631 len = h->len;
12632
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12633 memcpy(cap[h->index], key->data.u.str.str, len);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12634 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12635 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12636}
12637
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12638/* This function executes the "capture" action and store the result in a
12639 * capture slot if exists. It executes a fetch expression, turns the result
12640 * into a string and puts it in a capture slot. It always returns 1. If an
12641 * error occurs the action is cancelled, but the rule processing continues.
12642 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12643enum 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]12644 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12645{
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12646 struct sample *key;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12647 struct cap_hdr *h;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12648 char **cap = s->req_cap;
12649 struct proxy *fe = strm_fe(s);
12650 int len;
12651 int i;
12652
12653 /* Look for the original configuration. */
12654 for (h = fe->req_cap, i = fe->nb_req_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12655 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12656 i--, h = h->next);
12657 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12658 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12659
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12660 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]12661 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12662 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12663
12664 if (cap[h->index] == NULL)
12665 cap[h->index] = pool_alloc2(h->pool);
12666
12667 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12668 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12669
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12670 len = key->data.u.str.len;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12671 if (len > h->len)
12672 len = h->len;
12673
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12674 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12675 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12676 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12677}
12678
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12679/* parse an "http-request capture" action. It takes a single argument which is
12680 * a sample fetch expression. It stores the expression into arg->act.p[0] and
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12681 * the allocated hdr_cap struct or the preallocated "id" into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12682 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12683 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12684enum act_parse_ret parse_http_req_capture(const char **args, int *orig_arg, struct proxy *px,
12685 struct act_rule *rule, char **err)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12686{
12687 struct sample_expr *expr;
12688 struct cap_hdr *hdr;
12689 int cur_arg;
Willy Tarreau3986ac12015-05-08 16:13:42 +0200[diff] [blame]12690 int len = 0;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12691
12692 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12693 if (strcmp(args[cur_arg], "if") == 0 ||
12694 strcmp(args[cur_arg], "unless") == 0)
12695 break;
12696
12697 if (cur_arg < *orig_arg + 3) {
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12698 memprintf(err, "expects <expression> [ 'len' <length> | id <idx> ]");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12699 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12700 }
12701
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12702 cur_arg = *orig_arg;
12703 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12704 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12705 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12706
12707 if (!(expr->fetch->val & SMP_VAL_FE_HRQ_HDR)) {
12708 memprintf(err,
12709 "fetch method '%s' extracts information from '%s', none of which is available here",
12710 args[cur_arg-1], sample_src_names(expr->fetch->use));
12711 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12712 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12713 }
12714
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12715 if (!args[cur_arg] || !*args[cur_arg]) {
12716 memprintf(err, "expects 'len or 'id'");
12717 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12718 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12719 }
12720
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12721 if (strcmp(args[cur_arg], "len") == 0) {
12722 cur_arg++;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12723
12724 if (!(px->cap & PR_CAP_FE)) {
12725 memprintf(err, "proxy '%s' has no frontend capability", px->id);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12726 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12727 }
12728
12729 proxy->conf.args.ctx = ARGC_CAP;
12730
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12731 if (!args[cur_arg]) {
12732 memprintf(err, "missing length value");
12733 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12734 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12735 }
12736 /* we copy the table name for now, it will be resolved later */
12737 len = atoi(args[cur_arg]);
12738 if (len <= 0) {
12739 memprintf(err, "length must be > 0");
12740 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12741 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12742 }
12743 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12744
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12745 if (!len) {
12746 memprintf(err, "a positive 'len' argument is mandatory");
12747 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12748 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12749 }
12750
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]12751 hdr = calloc(1, sizeof(*hdr));
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12752 hdr->next = px->req_cap;
12753 hdr->name = NULL; /* not a header capture */
12754 hdr->namelen = 0;
12755 hdr->len = len;
12756 hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED);
12757 hdr->index = px->nb_req_cap++;
12758
12759 px->req_cap = hdr;
12760 px->to_log |= LW_REQHDR;
12761
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12762 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12763 rule->action_ptr = http_action_req_capture;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]12764 rule->arg.cap.expr = expr;
12765 rule->arg.cap.hdr = hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12766 }
12767
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12768 else if (strcmp(args[cur_arg], "id") == 0) {
12769 int id;
12770 char *error;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12771
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12772 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12773
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12774 if (!args[cur_arg]) {
12775 memprintf(err, "missing id value");
12776 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12777 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12778 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12779
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12780 id = strtol(args[cur_arg], &error, 10);
12781 if (*error != '\0') {
12782 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12783 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12784 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12785 }
12786 cur_arg++;
12787
12788 proxy->conf.args.ctx = ARGC_CAP;
12789
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12790 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12791 rule->action_ptr = http_action_req_capture_by_id;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12792 rule->arg.capid.expr = expr;
12793 rule->arg.capid.idx = id;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12794 }
12795
12796 else {
12797 memprintf(err, "expects 'len' or 'id', found '%s'", args[cur_arg]);
12798 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12799 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]12800 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12801
12802 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12803 return ACT_RET_PRS_OK;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12804}
12805
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12806/* This function executes the "capture" action and store the result in a
12807 * capture slot if exists. It executes a fetch expression, turns the result
12808 * into a string and puts it in a capture slot. It always returns 1. If an
12809 * error occurs the action is cancelled, but the rule processing continues.
12810 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12811enum 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]12812 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12813{
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12814 struct sample *key;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12815 struct cap_hdr *h;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12816 char **cap = s->res_cap;
12817 struct proxy *fe = strm_fe(s);
12818 int len;
12819 int i;
12820
12821 /* Look for the original configuration. */
12822 for (h = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12823 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12824 i--, h = h->next);
12825 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12826 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12827
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12828 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]12829 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12830 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12831
12832 if (cap[h->index] == NULL)
12833 cap[h->index] = pool_alloc2(h->pool);
12834
12835 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12836 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12837
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12838 len = key->data.u.str.len;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12839 if (len > h->len)
12840 len = h->len;
12841
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12842 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12843 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12844 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12845}
12846
12847/* parse an "http-response capture" action. It takes a single argument which is
12848 * a sample fetch expression. It stores the expression into arg->act.p[0] and
12849 * the allocated hdr_cap struct od the preallocated id into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12850 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12851 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12852enum act_parse_ret parse_http_res_capture(const char **args, int *orig_arg, struct proxy *px,
12853 struct act_rule *rule, char **err)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12854{
12855 struct sample_expr *expr;
12856 int cur_arg;
12857 int id;
12858 char *error;
12859
12860 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12861 if (strcmp(args[cur_arg], "if") == 0 ||
12862 strcmp(args[cur_arg], "unless") == 0)
12863 break;
12864
12865 if (cur_arg < *orig_arg + 3) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12866 memprintf(err, "expects <expression> id <idx>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12867 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12868 }
12869
12870 cur_arg = *orig_arg;
12871 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12872 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12873 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12874
12875 if (!(expr->fetch->val & SMP_VAL_FE_HRS_HDR)) {
12876 memprintf(err,
12877 "fetch method '%s' extracts information from '%s', none of which is available here",
12878 args[cur_arg-1], sample_src_names(expr->fetch->use));
12879 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12880 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12881 }
12882
12883 if (!args[cur_arg] || !*args[cur_arg]) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12884 memprintf(err, "expects 'id'");
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12885 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12886 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12887 }
12888
12889 if (strcmp(args[cur_arg], "id") != 0) {
12890 memprintf(err, "expects 'id', found '%s'", args[cur_arg]);
12891 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12892 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12893 }
12894
12895 cur_arg++;
12896
12897 if (!args[cur_arg]) {
12898 memprintf(err, "missing id value");
12899 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12900 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12901 }
12902
12903 id = strtol(args[cur_arg], &error, 10);
12904 if (*error != '\0') {
12905 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12906 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12907 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12908 }
12909 cur_arg++;
12910
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12911 proxy->conf.args.ctx = ARGC_CAP;
12912
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12913 rule->action = ACT_CUSTOM;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12914 rule->action_ptr = http_action_res_capture_by_id;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12915 rule->arg.capid.expr = expr;
12916 rule->arg.capid.idx = id;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12917
12918 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12919 return ACT_RET_PRS_OK;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12920}
12921
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12922/*
12923 * Return the struct http_req_action_kw associated to a keyword.
12924 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12925struct action_kw *action_http_req_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12926{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12927 return action_lookup(&http_req_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12928}
12929
12930/*
12931 * Return the struct http_res_action_kw associated to a keyword.
12932 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12933struct action_kw *action_http_res_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12934{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12935 return action_lookup(&http_res_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12936}
12937
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12938
12939/* "show errors" handler for the CLI. Returns 0 if wants to continue, 1 to stop
12940 * now.
12941 */
12942static int cli_parse_show_errors(char **args, struct appctx *appctx, void *private)
12943{
12944 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
12945 return 1;
12946
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12947 if (*args[2]) {
12948 struct proxy *px;
12949
12950 px = proxy_find_by_name(args[2], 0, 0);
12951 if (px)
12952 appctx->ctx.errors.iid = px->uuid;
12953 else
12954 appctx->ctx.errors.iid = atoi(args[2]);
12955
12956 if (!appctx->ctx.errors.iid) {
12957 appctx->ctx.cli.msg = "No such proxy.\n";
12958 appctx->st0 = CLI_ST_PRINT;
12959 return 1;
12960 }
12961 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12962 else
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12963 appctx->ctx.errors.iid = -1; // dump all proxies
12964
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12965 appctx->ctx.errors.flag = 0;
12966 if (strcmp(args[3], "request") == 0)
12967 appctx->ctx.errors.flag |= 4; // ignore response
12968 else if (strcmp(args[3], "response") == 0)
12969 appctx->ctx.errors.flag |= 2; // ignore request
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12970 appctx->ctx.errors.px = NULL;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12971 return 0;
12972}
12973
12974/* This function dumps all captured errors onto the stream interface's
12975 * read buffer. It returns 0 if the output buffer is full and it needs
12976 * to be called again, otherwise non-zero.
12977 */
12978static int cli_io_handler_show_errors(struct appctx *appctx)
12979{
12980 struct stream_interface *si = appctx->owner;
12981 extern const char *monthname[12];
12982
12983 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
12984 return 1;
12985
12986 chunk_reset(&trash);
12987
12988 if (!appctx->ctx.errors.px) {
12989 /* the function had not been called yet, let's prepare the
12990 * buffer for a response.
12991 */
12992 struct tm tm;
12993
12994 get_localtime(date.tv_sec, &tm);
12995 chunk_appendf(&trash, "Total events captured on [%02d/%s/%04d:%02d:%02d:%02d.%03d] : %u\n",
12996 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12997 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(date.tv_usec/1000),
12998 error_snapshot_id);
12999
13000 if (bi_putchk(si_ic(si), &trash) == -1) {
13001 /* Socket buffer full. Let's try again later from the same point */
13002 si_applet_cant_put(si);
13003 return 0;
13004 }
13005
13006 appctx->ctx.errors.px = proxy;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]13007 appctx->ctx.errors.bol = 0;
13008 appctx->ctx.errors.ptr = -1;
13009 }
13010
13011 /* we have two inner loops here, one for the proxy, the other one for
13012 * the buffer.
13013 */
13014 while (appctx->ctx.errors.px) {
13015 struct error_snapshot *es;
13016
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]13017 if ((appctx->ctx.errors.flag & 1) == 0) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]13018 es = &appctx->ctx.errors.px->invalid_req;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]13019 if (appctx->ctx.errors.flag & 2) // skip req
13020 goto next;
13021 }
13022 else {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]13023 es = &appctx->ctx.errors.px->invalid_rep;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]13024 if (appctx->ctx.errors.flag & 4) // skip resp
13025 goto next;
13026 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]13027
13028 if (!es->when.tv_sec)
13029 goto next;
13030
13031 if (appctx->ctx.errors.iid >= 0 &&
13032 appctx->ctx.errors.px->uuid != appctx->ctx.errors.iid &&
13033 es->oe->uuid != appctx->ctx.errors.iid)
13034 goto next;
13035
13036 if (appctx->ctx.errors.ptr < 0) {
13037 /* just print headers now */
13038
13039 char pn[INET6_ADDRSTRLEN];
13040 struct tm tm;
13041 int port;
13042
13043 get_localtime(es->when.tv_sec, &tm);
13044 chunk_appendf(&trash, " \n[%02d/%s/%04d:%02d:%02d:%02d.%03d]",
13045 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
13046 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(es->when.tv_usec/1000));
13047
13048 switch (addr_to_str(&es->src, pn, sizeof(pn))) {
13049 case AF_INET:
13050 case AF_INET6:
13051 port = get_host_port(&es->src);
13052 break;
13053 default:
13054 port = 0;
13055 }
13056
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]13057 switch (appctx->ctx.errors.flag & 1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]13058 case 0:
13059 chunk_appendf(&trash,
13060 " frontend %s (#%d): invalid request\n"
13061 " backend %s (#%d)",
13062 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
13063 (es->oe->cap & PR_CAP_BE) ? es->oe->id : "<NONE>",
13064 (es->oe->cap & PR_CAP_BE) ? es->oe->uuid : -1);
13065 break;
13066 case 1:
13067 chunk_appendf(&trash,
13068 " backend %s (#%d): invalid response\n"
13069 " frontend %s (#%d)",
13070 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
13071 es->oe->id, es->oe->uuid);
13072 break;
13073 }
13074
13075 chunk_appendf(&trash,
13076 ", server %s (#%d), event #%u\n"
13077 " src %s:%d, session #%d, session flags 0x%08x\n"
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]13078 " HTTP msg state %s(%d), msg flags 0x%08x, tx flags 0x%08x\n"
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]13079 " HTTP chunk len %lld bytes, HTTP body len %lld bytes\n"
13080 " buffer flags 0x%08x, out %d bytes, total %lld bytes\n"
13081 " pending %d bytes, wrapping at %d, error at position %d:\n \n",
13082 es->srv ? es->srv->id : "<NONE>", es->srv ? es->srv->puid : -1,
13083 es->ev_id,
13084 pn, port, es->sid, es->s_flags,
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]13085 http_msg_state_str(es->state), es->state, es->m_flags, es->t_flags,
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]13086 es->m_clen, es->m_blen,
13087 es->b_flags, es->b_out, es->b_tot,
13088 es->len, es->b_wrap, es->pos);
13089
13090 if (bi_putchk(si_ic(si), &trash) == -1) {
13091 /* Socket buffer full. Let's try again later from the same point */
13092 si_applet_cant_put(si);
13093 return 0;
13094 }
13095 appctx->ctx.errors.ptr = 0;
13096 appctx->ctx.errors.sid = es->sid;
13097 }
13098
13099 if (appctx->ctx.errors.sid != es->sid) {
13100 /* the snapshot changed while we were dumping it */
13101 chunk_appendf(&trash,
13102 " WARNING! update detected on this snapshot, dump interrupted. Please re-check!\n");
13103 if (bi_putchk(si_ic(si), &trash) == -1) {
13104 si_applet_cant_put(si);
13105 return 0;
13106 }
13107 goto next;
13108 }
13109
13110 /* OK, ptr >= 0, so we have to dump the current line */
13111 while (es->buf && appctx->ctx.errors.ptr < es->len && appctx->ctx.errors.ptr < global.tune.bufsize) {
13112 int newptr;
13113 int newline;
13114
13115 newline = appctx->ctx.errors.bol;
13116 newptr = dump_text_line(&trash, es->buf, global.tune.bufsize, es->len, &newline, appctx->ctx.errors.ptr);
13117 if (newptr == appctx->ctx.errors.ptr)
13118 return 0;
13119
13120 if (bi_putchk(si_ic(si), &trash) == -1) {
13121 /* Socket buffer full. Let's try again later from the same point */
13122 si_applet_cant_put(si);
13123 return 0;
13124 }
13125 appctx->ctx.errors.ptr = newptr;
13126 appctx->ctx.errors.bol = newline;
13127 };
13128 next:
13129 appctx->ctx.errors.bol = 0;
13130 appctx->ctx.errors.ptr = -1;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]13131 appctx->ctx.errors.flag ^= 1;
13132 if (!(appctx->ctx.errors.flag & 1))
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]13133 appctx->ctx.errors.px = appctx->ctx.errors.px->next;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]13134 }
13135
13136 /* dump complete */
13137 return 1;
13138}
13139
13140/* register cli keywords */
13141static struct cli_kw_list cli_kws = {{ },{
13142 { { "show", "errors", NULL },
13143 "show errors : report last request and response errors for each proxy",
13144 cli_parse_show_errors, cli_io_handler_show_errors, NULL,
13145 },
13146 {{},}
13147}};
13148
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]13149/************************************************************************/
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]13150/* All supported ACL keywords must be declared here. */
13151/************************************************************************/
13152
13153/* Note: must not be declared <const> as its list will be overwritten.
13154 * Please take care of keeping this list alphabetically sorted.
13155 */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]13156static struct acl_kw_list acl_kws = {ILH, {
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]13157 { "base", "base", PAT_MATCH_STR },
13158 { "base_beg", "base", PAT_MATCH_BEG },
13159 { "base_dir", "base", PAT_MATCH_DIR },
13160 { "base_dom", "base", PAT_MATCH_DOM },
13161 { "base_end", "base", PAT_MATCH_END },
13162 { "base_len", "base", PAT_MATCH_LEN },
13163 { "base_reg", "base", PAT_MATCH_REG },
13164 { "base_sub", "base", PAT_MATCH_SUB },
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]13165
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]13166 { "cook", "req.cook", PAT_MATCH_STR },
13167 { "cook_beg", "req.cook", PAT_MATCH_BEG },
13168 { "cook_dir", "req.cook", PAT_MATCH_DIR },
13169 { "cook_dom", "req.cook", PAT_MATCH_DOM },
13170 { "cook_end", "req.cook", PAT_MATCH_END },
13171 { "cook_len", "req.cook", PAT_MATCH_LEN },
13172 { "cook_reg", "req.cook", PAT_MATCH_REG },
13173 { "cook_sub", "req.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]13174
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]13175 { "hdr", "req.hdr", PAT_MATCH_STR },
13176 { "hdr_beg", "req.hdr", PAT_MATCH_BEG },
13177 { "hdr_dir", "req.hdr", PAT_MATCH_DIR },
13178 { "hdr_dom", "req.hdr", PAT_MATCH_DOM },
13179 { "hdr_end", "req.hdr", PAT_MATCH_END },
13180 { "hdr_len", "req.hdr", PAT_MATCH_LEN },
13181 { "hdr_reg", "req.hdr", PAT_MATCH_REG },
13182 { "hdr_sub", "req.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]13183
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]13184 /* these two declarations uses strings with list storage (in place
13185 * of tree storage). The basic match is PAT_MATCH_STR, but the indexation
13186 * and delete functions are relative to the list management. The parse
13187 * and match method are related to the corresponding fetch methods. This
13188 * is very particular ACL declaration mode.
13189 */
13190 { "http_auth_group", NULL, PAT_MATCH_STR, NULL, pat_idx_list_str, pat_del_list_ptr, NULL, pat_match_auth },
13191 { "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]13192
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]13193 { "path", "path", PAT_MATCH_STR },
13194 { "path_beg", "path", PAT_MATCH_BEG },
13195 { "path_dir", "path", PAT_MATCH_DIR },
13196 { "path_dom", "path", PAT_MATCH_DOM },
13197 { "path_end", "path", PAT_MATCH_END },
13198 { "path_len", "path", PAT_MATCH_LEN },
13199 { "path_reg", "path", PAT_MATCH_REG },
13200 { "path_sub", "path", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]13201
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]13202 { "req_ver", "req.ver", PAT_MATCH_STR },
13203 { "resp_ver", "res.ver", PAT_MATCH_STR },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]13204
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]13205 { "scook", "res.cook", PAT_MATCH_STR },
13206 { "scook_beg", "res.cook", PAT_MATCH_BEG },
13207 { "scook_dir", "res.cook", PAT_MATCH_DIR },
13208 { "scook_dom", "res.cook", PAT_MATCH_DOM },
13209 { "scook_end", "res.cook", PAT_MATCH_END },
13210 { "scook_len", "res.cook", PAT_MATCH_LEN },
13211 { "scook_reg", "res.cook", PAT_MATCH_REG },
13212 { "scook_sub", "res.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]13213
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]13214 { "shdr", "res.hdr", PAT_MATCH_STR },
13215 { "shdr_beg", "res.hdr", PAT_MATCH_BEG },
13216 { "shdr_dir", "res.hdr", PAT_MATCH_DIR },
13217 { "shdr_dom", "res.hdr", PAT_MATCH_DOM },
13218 { "shdr_end", "res.hdr", PAT_MATCH_END },
13219 { "shdr_len", "res.hdr", PAT_MATCH_LEN },
13220 { "shdr_reg", "res.hdr", PAT_MATCH_REG },
13221 { "shdr_sub", "res.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]13222
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]13223 { "url", "url", PAT_MATCH_STR },
13224 { "url_beg", "url", PAT_MATCH_BEG },
13225 { "url_dir", "url", PAT_MATCH_DIR },
13226 { "url_dom", "url", PAT_MATCH_DOM },
13227 { "url_end", "url", PAT_MATCH_END },
13228 { "url_len", "url", PAT_MATCH_LEN },
13229 { "url_reg", "url", PAT_MATCH_REG },
13230 { "url_sub", "url", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]13231
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]13232 { "urlp", "urlp", PAT_MATCH_STR },
13233 { "urlp_beg", "urlp", PAT_MATCH_BEG },
13234 { "urlp_dir", "urlp", PAT_MATCH_DIR },
13235 { "urlp_dom", "urlp", PAT_MATCH_DOM },
13236 { "urlp_end", "urlp", PAT_MATCH_END },
13237 { "urlp_len", "urlp", PAT_MATCH_LEN },
13238 { "urlp_reg", "urlp", PAT_MATCH_REG },
13239 { "urlp_sub", "urlp", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]13240
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100[diff] [blame]13241 { /* END */ },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]13242}};
13243
13244/************************************************************************/
13245/* All supported pattern keywords must be declared here. */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]13246/************************************************************************/
13247/* Note: must not be declared <const> as its list will be overwritten */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]13248static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13249 { "base", smp_fetch_base, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13250 { "base32", smp_fetch_base32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]13251 { "base32+src", smp_fetch_base32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
13252
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]13253 /* capture are allocated and are permanent in the stream */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]13254 { "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]13255
13256 /* retrieve these captures from the HTTP logs */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]13257 { "capture.req.method", smp_fetch_capture_req_method, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
13258 { "capture.req.uri", smp_fetch_capture_req_uri, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
13259 { "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]13260
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]13261 { "capture.res.hdr", smp_fetch_capture_header_res, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRSHP },
13262 { "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]13263
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]13264 /* cookie is valid in both directions (eg: for "stick ...") but cook*
13265 * are only here to match the ACL's name, are request-only and are used
13266 * for ACL compatibility only.
13267 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13268 { "cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
13269 { "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]13270 { "cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
13271 { "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]13272
13273 /* hdr is valid in both directions (eg: for "stick ...") but hdr_* are
13274 * only here to match the ACL's name, are request-only and are used for
13275 * ACL compatibility only.
13276 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13277 { "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]13278 { "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]13279 { "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]13280 { "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]13281
Willy Tarreau0a0daec2013-04-02 22:44:58 +0200[diff] [blame]13282 { "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]13283 { "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]13284 { "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]13285 { "method", smp_fetch_meth, 0, NULL, SMP_T_METH, SMP_USE_HRQHP },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13286 { "path", smp_fetch_path, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]13287 { "query", smp_fetch_query, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]13288
13289 /* HTTP protocol on the request path */
13290 { "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]13291 { "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]13292
13293 /* HTTP version on the request path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13294 { "req.ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
13295 { "req_ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]13296
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]13297 { "req.body", smp_fetch_body, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13298 { "req.body_len", smp_fetch_body_len, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
13299 { "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]13300 { "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]13301
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]13302 /* HTTP version on the response path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13303 { "res.ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
13304 { "resp_ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]13305
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]13306 /* 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]13307 { "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]13308 { "req.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
13309 { "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]13310
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13311 { "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]13312 { "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]13313 { "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]13314 { "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]13315 { "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]13316 { "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]13317 { "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]13318
13319 /* 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]13320 { "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]13321 { "res.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
13322 { "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]13323
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13324 { "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]13325 { "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]13326 { "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]13327 { "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]13328 { "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]13329 { "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]13330 { "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]13331
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]13332 /* scook is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13333 { "scook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13334 { "scook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
13335 { "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]13336 { "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]13337
13338 /* shdr is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13339 { "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]13340 { "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]13341 { "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]13342 { "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]13343
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13344 { "status", smp_fetch_stcode, 0, NULL, SMP_T_SINT, SMP_USE_HRSHP },
Thierry Fournier0e00dca2016-04-07 15:47:40 +0200[diff] [blame]13345 { "unique-id", smp_fetch_uniqueid, 0, NULL, SMP_T_STR, SMP_SRC_L4SRV },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]13346 { "url", smp_fetch_url, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13347 { "url32", smp_fetch_url32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]13348 { "url32+src", smp_fetch_url32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]13349 { "url_ip", smp_fetch_url_ip, 0, NULL, SMP_T_IPV4, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13350 { "url_port", smp_fetch_url_port, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]13351 { "url_param", smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
13352 { "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]13353 { "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]13354 { /* END */ },
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]13355}};
13356
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]13357
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13358/************************************************************************/
13359/* All supported converter keywords must be declared here. */
13360/************************************************************************/
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]13361/* Note: must not be declared <const> as its list will be overwritten */
13362static struct sample_conv_kw_list sample_conv_kws = {ILH, {
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]13363 { "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]13364 { "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]13365 { "capture-req", smp_conv_req_capture, ARG1(1,SINT), NULL, SMP_T_STR, SMP_T_STR},
13366 { "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]13367 { "url_dec", sample_conv_url_dec, 0, NULL, SMP_T_STR, SMP_T_STR},
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]13368 { NULL, NULL, 0, 0, 0 },
13369}};
13370
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]13371
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13372/************************************************************************/
13373/* All supported http-request action keywords must be declared here. */
13374/************************************************************************/
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]13375struct action_kw_list http_req_actions = {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13376 .kw = {
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]13377 { "capture", parse_http_req_capture },
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13378 { "set-method", parse_set_req_line },
13379 { "set-path", parse_set_req_line },
13380 { "set-query", parse_set_req_line },
13381 { "set-uri", parse_set_req_line },
Willy Tarreaucb703b02015-04-03 09:52:01 +0200[diff] [blame]13382 { NULL, NULL }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13383 }
13384};
13385
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]13386struct action_kw_list http_res_actions = {
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]13387 .kw = {
13388 { "capture", parse_http_res_capture },
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]13389 { "set-status", parse_http_set_status },
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]13390 { NULL, NULL }
13391 }
13392};
13393
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]13394__attribute__((constructor))
13395static void __http_protocol_init(void)
13396{
13397 acl_register_keywords(&acl_kws);
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]13398 sample_register_fetches(&sample_fetch_keywords);
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]13399 sample_register_convs(&sample_conv_kws);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]13400 http_req_keywords_register(&http_req_actions);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]13401 http_res_keywords_register(&http_res_actions);
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]13402 cli_register_kw(&cli_kws);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]13403}
13404
13405
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]13406/*
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]13407 * Local variables:
13408 * c-indent-level: 8
13409 * c-basic-offset: 8
13410 * End:
13411 */