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git01.mediatek.com / haproxy / 8740c8b1b2fffd33ab3b54c4b304f05d803f0063 / . / src / proto_http.c
blob: c0532d7722195d63953ff67079440fc1fdebc767 [file] [log] [blame]
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1/*
2 * HTTP protocol analyzer
3 *
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]4 * Copyright 2000-2011 Willy Tarreau <w@1wt.eu>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
13#include <ctype.h>
14#include <errno.h>
15#include <fcntl.h>
16#include <stdio.h>
17#include <stdlib.h>
18#include <string.h>
19#include <syslog.h>
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]20#include <time.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]21
22#include <sys/socket.h>
23#include <sys/stat.h>
24#include <sys/types.h>
25
Willy Tarreaub05405a2012-01-23 15:35:52 +0100[diff] [blame]26#include <netinet/tcp.h>
27
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]28#include <common/base64.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200[diff] [blame]29#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +0200[diff] [blame]30#include <common/compat.h>
31#include <common/config.h>
Willy Tarreaua4cd1f52006-12-16 19:57:26 +0100[diff] [blame]32#include <common/debug.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +0200[diff] [blame]33#include <common/memory.h>
34#include <common/mini-clist.h>
35#include <common/standard.h>
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200[diff] [blame]36#include <common/ticks.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +0200[diff] [blame]37#include <common/time.h>
38#include <common/uri_auth.h>
39#include <common/version.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]40
41#include <types/capture.h>
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]42#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]43#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]44#include <types/global.h>
William Lallemand9ed62032016-11-21 17:49:11 +0100[diff] [blame]45#include <types/stats.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]46
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]47#include <proto/acl.h>
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]48#include <proto/action.h>
Willy Tarreau61612d42012-04-19 18:42:05 +0200[diff] [blame]49#include <proto/arg.h>
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]50#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]51#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200[diff] [blame]52#include <proto/channel.h>
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]53#include <proto/checks.h>
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]54#include <proto/cli.h>
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]55#include <proto/compression.h>
William Lallemand9ed62032016-11-21 17:49:11 +0100[diff] [blame]56#include <proto/stats.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]57#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]58#include <proto/filters.h>
Willy Tarreau03fa5df2010-05-24 21:02:37 +0200[diff] [blame]59#include <proto/frontend.h>
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]60#include <proto/h1.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]61#include <proto/log.h>
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]62#include <proto/hdr_idx.h>
Thierry FOURNIERed66c292013-11-28 11:05:19 +0100[diff] [blame]63#include <proto/pattern.h>
Willy Tarreaub6866442008-07-14 23:54:42 +0200[diff] [blame]64#include <proto/proto_tcp.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]65#include <proto/proto_http.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +0100[diff] [blame]66#include <proto/proxy.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]67#include <proto/queue.h>
Willy Tarreaucd3b0942012-04-27 21:52:18 +0200[diff] [blame]68#include <proto/sample.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +0100[diff] [blame]69#include <proto/server.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]70#include <proto/stream.h>
Willy Tarreaucff64112008-11-03 06:26:53 +0100[diff] [blame]71#include <proto/stream_interface.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]72#include <proto/task.h>
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]73#include <proto/pattern.h>
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]74#include <proto/vars.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]75
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]76const char HTTP_100[] =
77 "HTTP/1.1 100 Continue\r\n\r\n";
78
79const struct chunk http_100_chunk = {
80 .str = (char *)&HTTP_100,
81 .len = sizeof(HTTP_100)-1
82};
83
Willy Tarreaua9679ac2010-01-03 17:32:57 +0100[diff] [blame]84/* Warning: no "connection" header is provided with the 3xx messages below */
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200[diff] [blame]85const char *HTTP_301 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]86 "HTTP/1.1 301 Moved Permanently\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]87 "Content-length: 0\r\n"
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200[diff] [blame]88 "Location: "; /* not terminated since it will be concatenated with the URL */
89
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]90const char *HTTP_302 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]91 "HTTP/1.1 302 Found\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]92 "Cache-Control: no-cache\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]93 "Content-length: 0\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]94 "Location: "; /* not terminated since it will be concatenated with the URL */
95
96/* same as 302 except that the browser MUST retry with the GET method */
97const char *HTTP_303 =
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]98 "HTTP/1.1 303 See Other\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]99 "Cache-Control: no-cache\r\n"
Willy Tarreaubc5aa192010-01-03 15:09:36 +0100[diff] [blame]100 "Content-length: 0\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]101 "Location: "; /* not terminated since it will be concatenated with the URL */
102
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]103
104/* same as 302 except that the browser MUST retry with the same method */
105const char *HTTP_307 =
106 "HTTP/1.1 307 Temporary Redirect\r\n"
107 "Cache-Control: no-cache\r\n"
108 "Content-length: 0\r\n"
109 "Location: "; /* not terminated since it will be concatenated with the URL */
110
111/* same as 301 except that the browser MUST retry with the same method */
112const char *HTTP_308 =
113 "HTTP/1.1 308 Permanent Redirect\r\n"
114 "Content-length: 0\r\n"
115 "Location: "; /* not terminated since it will be concatenated with the URL */
116
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]117/* Warning: this one is an sprintf() fmt string, with <realm> as its only argument */
118const char *HTTP_401_fmt =
119 "HTTP/1.0 401 Unauthorized\r\n"
120 "Cache-Control: no-cache\r\n"
121 "Connection: close\r\n"
Willy Tarreau791d66d2006-07-08 16:53:38 +0200[diff] [blame]122 "Content-Type: text/html\r\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]123 "WWW-Authenticate: Basic realm=\"%s\"\r\n"
124 "\r\n"
125 "<html><body><h1>401 Unauthorized</h1>\nYou need a valid user and password to access this content.\n</body></html>\n";
126
Willy Tarreau844a7e72010-01-31 21:46:18 +0100[diff] [blame]127const char *HTTP_407_fmt =
128 "HTTP/1.0 407 Unauthorized\r\n"
129 "Cache-Control: no-cache\r\n"
130 "Connection: close\r\n"
131 "Content-Type: text/html\r\n"
132 "Proxy-Authenticate: Basic realm=\"%s\"\r\n"
133 "\r\n"
Godbach1f1fae62014-12-17 16:32:05 +0800[diff] [blame]134 "<html><body><h1>407 Unauthorized</h1>\nYou need a valid user and password to access this content.\n</body></html>\n";
Willy Tarreau844a7e72010-01-31 21:46:18 +0100[diff] [blame]135
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]136
137const int http_err_codes[HTTP_ERR_SIZE] = {
Willy Tarreauae94d4d2011-05-11 16:28:49 +0200[diff] [blame]138 [HTTP_ERR_200] = 200, /* used by "monitor-uri" */
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]139 [HTTP_ERR_400] = 400,
140 [HTTP_ERR_403] = 403,
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]141 [HTTP_ERR_405] = 405,
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]142 [HTTP_ERR_408] = 408,
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]143 [HTTP_ERR_429] = 429,
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]144 [HTTP_ERR_500] = 500,
145 [HTTP_ERR_502] = 502,
146 [HTTP_ERR_503] = 503,
147 [HTTP_ERR_504] = 504,
148};
149
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]150static const char *http_err_msgs[HTTP_ERR_SIZE] = {
Willy Tarreauae94d4d2011-05-11 16:28:49 +0200[diff] [blame]151 [HTTP_ERR_200] =
152 "HTTP/1.0 200 OK\r\n"
153 "Cache-Control: no-cache\r\n"
154 "Connection: close\r\n"
155 "Content-Type: text/html\r\n"
156 "\r\n"
157 "<html><body><h1>200 OK</h1>\nService ready.\n</body></html>\n",
158
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]159 [HTTP_ERR_400] =
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]160 "HTTP/1.0 400 Bad request\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]161 "Cache-Control: no-cache\r\n"
162 "Connection: close\r\n"
163 "Content-Type: text/html\r\n"
164 "\r\n"
165 "<html><body><h1>400 Bad request</h1>\nYour browser sent an invalid request.\n</body></html>\n",
166
167 [HTTP_ERR_403] =
168 "HTTP/1.0 403 Forbidden\r\n"
169 "Cache-Control: no-cache\r\n"
170 "Connection: close\r\n"
171 "Content-Type: text/html\r\n"
172 "\r\n"
173 "<html><body><h1>403 Forbidden</h1>\nRequest forbidden by administrative rules.\n</body></html>\n",
174
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]175 [HTTP_ERR_405] =
176 "HTTP/1.0 405 Method Not Allowed\r\n"
177 "Cache-Control: no-cache\r\n"
178 "Connection: close\r\n"
179 "Content-Type: text/html\r\n"
180 "\r\n"
181 "<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",
182
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]183 [HTTP_ERR_408] =
184 "HTTP/1.0 408 Request Time-out\r\n"
185 "Cache-Control: no-cache\r\n"
186 "Connection: close\r\n"
187 "Content-Type: text/html\r\n"
188 "\r\n"
189 "<html><body><h1>408 Request Time-out</h1>\nYour browser didn't send a complete request in time.\n</body></html>\n",
190
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]191 [HTTP_ERR_429] =
192 "HTTP/1.0 429 Too Many Requests\r\n"
193 "Cache-Control: no-cache\r\n"
194 "Connection: close\r\n"
195 "Content-Type: text/html\r\n"
196 "\r\n"
197 "<html><body><h1>429 Too Many Requests</h1>\nYou have sent too many requests in a given amount of time.\n</body></html>\n",
198
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]199 [HTTP_ERR_500] =
Jarno Huuskonen16ad94a2017-01-09 14:17:10 +0200[diff] [blame]200 "HTTP/1.0 500 Internal Server Error\r\n"
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]201 "Cache-Control: no-cache\r\n"
202 "Connection: close\r\n"
203 "Content-Type: text/html\r\n"
204 "\r\n"
Jarno Huuskonen16ad94a2017-01-09 14:17:10 +0200[diff] [blame]205 "<html><body><h1>500 Internal Server Error</h1>\nAn internal server error occured.\n</body></html>\n",
Willy Tarreau0f772532006-12-23 20:51:41 +0100[diff] [blame]206
207 [HTTP_ERR_502] =
208 "HTTP/1.0 502 Bad Gateway\r\n"
209 "Cache-Control: no-cache\r\n"
210 "Connection: close\r\n"
211 "Content-Type: text/html\r\n"
212 "\r\n"
213 "<html><body><h1>502 Bad Gateway</h1>\nThe server returned an invalid or incomplete response.\n</body></html>\n",
214
215 [HTTP_ERR_503] =
216 "HTTP/1.0 503 Service Unavailable\r\n"
217 "Cache-Control: no-cache\r\n"
218 "Connection: close\r\n"
219 "Content-Type: text/html\r\n"
220 "\r\n"
221 "<html><body><h1>503 Service Unavailable</h1>\nNo server is available to handle this request.\n</body></html>\n",
222
223 [HTTP_ERR_504] =
224 "HTTP/1.0 504 Gateway Time-out\r\n"
225 "Cache-Control: no-cache\r\n"
226 "Connection: close\r\n"
227 "Content-Type: text/html\r\n"
228 "\r\n"
229 "<html><body><h1>504 Gateway Time-out</h1>\nThe server didn't respond in time.\n</body></html>\n",
230
231};
232
Cyril Bonté19979e12012-04-04 12:57:21 +0200[diff] [blame]233/* status codes available for the stats admin page (strictly 4 chars length) */
234const char *stat_status_codes[STAT_STATUS_SIZE] = {
235 [STAT_STATUS_DENY] = "DENY",
236 [STAT_STATUS_DONE] = "DONE",
237 [STAT_STATUS_ERRP] = "ERRP",
238 [STAT_STATUS_EXCD] = "EXCD",
239 [STAT_STATUS_NONE] = "NONE",
240 [STAT_STATUS_PART] = "PART",
241 [STAT_STATUS_UNKN] = "UNKN",
242};
243
244
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]245/* List head of all known action keywords for "http-request" */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]246struct action_kw_list http_req_keywords = {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]247 .list = LIST_HEAD_INIT(http_req_keywords.list)
248};
249
250/* List head of all known action keywords for "http-response" */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]251struct action_kw_list http_res_keywords = {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]252 .list = LIST_HEAD_INIT(http_res_keywords.list)
253};
254
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]255/* We must put the messages here since GCC cannot initialize consts depending
256 * on strlen().
257 */
258struct chunk http_err_chunks[HTTP_ERR_SIZE];
259
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]260/* this struct is used between calls to smp_fetch_hdr() or smp_fetch_cookie() */
261static struct hdr_ctx static_hdr_ctx;
262
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]263#define FD_SETS_ARE_BITFIELDS
264#ifdef FD_SETS_ARE_BITFIELDS
265/*
266 * This map is used with all the FD_* macros to check whether a particular bit
267 * is set or not. Each bit represents an ACSII code. FD_SET() sets those bytes
268 * which should be encoded. When FD_ISSET() returns non-zero, it means that the
269 * byte should be encoded. Be careful to always pass bytes from 0 to 255
270 * exclusively to the macros.
271 */
272fd_set hdr_encode_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
273fd_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]274fd_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]275
276#else
277#error "Check if your OS uses bitfields for fd_sets"
278#endif
279
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]280static 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]281
David Carlier7365f7d2016-04-04 11:54:42 +0100[diff] [blame]282static inline int http_msg_forward_body(struct stream *s, struct http_msg *msg);
283static inline int http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]284
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]285/* This function returns a reason associated with the HTTP status.
286 * This function never fails, a message is always returned.
287 */
288const char *get_reason(unsigned int status)
289{
290 switch (status) {
291 case 100: return "Continue";
292 case 101: return "Switching Protocols";
293 case 102: return "Processing";
294 case 200: return "OK";
295 case 201: return "Created";
296 case 202: return "Accepted";
297 case 203: return "Non-Authoritative Information";
298 case 204: return "No Content";
299 case 205: return "Reset Content";
300 case 206: return "Partial Content";
301 case 207: return "Multi-Status";
302 case 210: return "Content Different";
303 case 226: return "IM Used";
304 case 300: return "Multiple Choices";
305 case 301: return "Moved Permanently";
306 case 302: return "Moved Temporarily";
307 case 303: return "See Other";
308 case 304: return "Not Modified";
309 case 305: return "Use Proxy";
310 case 307: return "Temporary Redirect";
311 case 308: return "Permanent Redirect";
312 case 310: return "Too many Redirects";
313 case 400: return "Bad Request";
314 case 401: return "Unauthorized";
315 case 402: return "Payment Required";
316 case 403: return "Forbidden";
317 case 404: return "Not Found";
318 case 405: return "Method Not Allowed";
319 case 406: return "Not Acceptable";
320 case 407: return "Proxy Authentication Required";
321 case 408: return "Request Time-out";
322 case 409: return "Conflict";
323 case 410: return "Gone";
324 case 411: return "Length Required";
325 case 412: return "Precondition Failed";
326 case 413: return "Request Entity Too Large";
327 case 414: return "Request-URI Too Long";
328 case 415: return "Unsupported Media Type";
329 case 416: return "Requested range unsatisfiable";
330 case 417: return "Expectation failed";
331 case 418: return "I'm a teapot";
332 case 422: return "Unprocessable entity";
333 case 423: return "Locked";
334 case 424: return "Method failure";
335 case 425: return "Unordered Collection";
336 case 426: return "Upgrade Required";
337 case 428: return "Precondition Required";
338 case 429: return "Too Many Requests";
339 case 431: return "Request Header Fields Too Large";
340 case 449: return "Retry With";
341 case 450: return "Blocked by Windows Parental Controls";
342 case 451: return "Unavailable For Legal Reasons";
343 case 456: return "Unrecoverable Error";
344 case 499: return "client has closed connection";
345 case 500: return "Internal Server Error";
346 case 501: return "Not Implemented";
Jarno Huuskonen59af2df2016-12-28 10:49:01 +0200[diff] [blame]347 case 502: return "Bad Gateway or Proxy Error";
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]348 case 503: return "Service Unavailable";
349 case 504: return "Gateway Time-out";
350 case 505: return "HTTP Version not supported";
351 case 506: return "Variant also negociate";
352 case 507: return "Insufficient storage";
353 case 508: return "Loop detected";
354 case 509: return "Bandwidth Limit Exceeded";
355 case 510: return "Not extended";
356 case 511: return "Network authentication required";
357 case 520: return "Web server is returning an unknown error";
358 default:
359 switch (status) {
360 case 100 ... 199: return "Informational";
361 case 200 ... 299: return "Success";
362 case 300 ... 399: return "Redirection";
363 case 400 ... 499: return "Client Error";
364 case 500 ... 599: return "Server Error";
365 default: return "Other";
366 }
367 }
368}
369
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]370/* This function returns HTTP_ERR_<num> (enum) matching http status code.
371 * Returned value should match codes from http_err_codes.
372 */
373static const int http_get_status_idx(unsigned int status)
374{
375 switch (status) {
376 case 200: return HTTP_ERR_200;
377 case 400: return HTTP_ERR_400;
378 case 403: return HTTP_ERR_403;
379 case 405: return HTTP_ERR_405;
380 case 408: return HTTP_ERR_408;
381 case 429: return HTTP_ERR_429;
382 case 500: return HTTP_ERR_500;
383 case 502: return HTTP_ERR_502;
384 case 503: return HTTP_ERR_503;
385 case 504: return HTTP_ERR_504;
386 default: return HTTP_ERR_500;
387 }
388}
389
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]390void init_proto_http()
391{
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]392 int i;
393 char *tmp;
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]394 int msg;
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]395
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]396 for (msg = 0; msg < HTTP_ERR_SIZE; msg++) {
397 if (!http_err_msgs[msg]) {
398 Alert("Internal error: no message defined for HTTP return code %d. Aborting.\n", msg);
399 abort();
400 }
401
402 http_err_chunks[msg].str = (char *)http_err_msgs[msg];
403 http_err_chunks[msg].len = strlen(http_err_msgs[msg]);
404 }
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]405
406 /* initialize the log header encoding map : '{|}"#' should be encoded with
407 * '#' as prefix, as well as non-printable characters ( <32 or >= 127 ).
408 * URL encoding only requires '"', '#' to be encoded as well as non-
409 * printable characters above.
410 */
411 memset(hdr_encode_map, 0, sizeof(hdr_encode_map));
412 memset(url_encode_map, 0, sizeof(url_encode_map));
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]413 memset(http_encode_map, 0, sizeof(url_encode_map));
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]414 for (i = 0; i < 32; i++) {
415 FD_SET(i, hdr_encode_map);
416 FD_SET(i, url_encode_map);
417 }
418 for (i = 127; i < 256; i++) {
419 FD_SET(i, hdr_encode_map);
420 FD_SET(i, url_encode_map);
421 }
422
423 tmp = "\"#{|}";
424 while (*tmp) {
425 FD_SET(*tmp, hdr_encode_map);
426 tmp++;
427 }
428
429 tmp = "\"#";
430 while (*tmp) {
431 FD_SET(*tmp, url_encode_map);
432 tmp++;
433 }
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]434
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +0100[diff] [blame]435 /* initialize the http header encoding map. The draft httpbis define the
436 * header content as:
437 *
438 * HTTP-message = start-line
439 * *( header-field CRLF )
440 * CRLF
441 * [ message-body ]
442 * header-field = field-name ":" OWS field-value OWS
443 * field-value = *( field-content / obs-fold )
444 * field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
445 * obs-fold = CRLF 1*( SP / HTAB )
446 * field-vchar = VCHAR / obs-text
447 * VCHAR = %x21-7E
448 * obs-text = %x80-FF
449 *
450 * All the chars are encoded except "VCHAR", "obs-text", SP and HTAB.
451 * The encoded chars are form 0x00 to 0x08, 0x0a to 0x1f and 0x7f. The
452 * "obs-fold" is volontary forgotten because haproxy remove this.
453 */
454 memset(http_encode_map, 0, sizeof(http_encode_map));
455 for (i = 0x00; i <= 0x08; i++)
456 FD_SET(i, http_encode_map);
457 for (i = 0x0a; i <= 0x1f; i++)
458 FD_SET(i, http_encode_map);
459 FD_SET(0x7f, http_encode_map);
460
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]461 /* memory allocations */
Willy Tarreau63986c72015-04-03 22:55:33 +0200[diff] [blame]462 pool2_http_txn = create_pool("http_txn", sizeof(struct http_txn), MEM_F_SHARED);
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]463 pool2_uniqueid = create_pool("uniqueid", UNIQUEID_LEN, MEM_F_SHARED);
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]464}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]465
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]466/*
467 * We have 26 list of methods (1 per first letter), each of which can have
468 * up to 3 entries (2 valid, 1 null).
469 */
470struct http_method_desc {
Willy Tarreauc8987b32013-12-06 23:43:17 +0100[diff] [blame]471 enum http_meth_t meth;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]472 int len;
473 const char text[8];
474};
475
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]476const struct http_method_desc http_methods[26][3] = {
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]477 ['C' - 'A'] = {
478 [0] = { .meth = HTTP_METH_CONNECT , .len=7, .text="CONNECT" },
479 },
480 ['D' - 'A'] = {
481 [0] = { .meth = HTTP_METH_DELETE , .len=6, .text="DELETE" },
482 },
483 ['G' - 'A'] = {
484 [0] = { .meth = HTTP_METH_GET , .len=3, .text="GET" },
485 },
486 ['H' - 'A'] = {
487 [0] = { .meth = HTTP_METH_HEAD , .len=4, .text="HEAD" },
488 },
Christopher Fauletd57ad642015-07-31 14:26:57 +0200[diff] [blame]489 ['O' - 'A'] = {
490 [0] = { .meth = HTTP_METH_OPTIONS , .len=7, .text="OPTIONS" },
491 },
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]492 ['P' - 'A'] = {
493 [0] = { .meth = HTTP_METH_POST , .len=4, .text="POST" },
494 [1] = { .meth = HTTP_METH_PUT , .len=3, .text="PUT" },
495 },
496 ['T' - 'A'] = {
497 [0] = { .meth = HTTP_METH_TRACE , .len=5, .text="TRACE" },
498 },
499 /* rest is empty like this :
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]500 * [0] = { .meth = HTTP_METH_OTHER , .len=0, .text="" },
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]501 */
502};
503
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]504const struct http_method_name http_known_methods[HTTP_METH_OTHER] = {
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]505 [HTTP_METH_OPTIONS] = { "OPTIONS", 7 },
506 [HTTP_METH_GET] = { "GET", 3 },
507 [HTTP_METH_HEAD] = { "HEAD", 4 },
508 [HTTP_METH_POST] = { "POST", 4 },
509 [HTTP_METH_PUT] = { "PUT", 3 },
510 [HTTP_METH_DELETE] = { "DELETE", 6 },
511 [HTTP_METH_TRACE] = { "TRACE", 5 },
512 [HTTP_METH_CONNECT] = { "CONNECT", 7 },
513};
514
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]515/*
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]516 * Adds a header and its CRLF at the tail of the message's buffer, just before
517 * the last CRLF. Text length is measured first, so it cannot be NULL.
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]518 * The header is also automatically added to the index <hdr_idx>, and the end
519 * of headers is automatically adjusted. The number of bytes added is returned
520 * on success, otherwise <0 is returned indicating an error.
521 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]522int 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]523{
524 int bytes, len;
525
526 len = strlen(text);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]527 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]528 if (!bytes)
529 return -1;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]530 http_msg_move_end(msg, bytes);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]531 return hdr_idx_add(len, 1, hdr_idx, hdr_idx->tail);
532}
533
534/*
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]535 * Adds a header and its CRLF at the tail of the message's buffer, just before
536 * 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]537 * the buffer is only opened and the space reserved, but nothing is copied.
538 * The header is also automatically added to the index <hdr_idx>, and the end
539 * of headers is automatically adjusted. The number of bytes added is returned
540 * on success, otherwise <0 is returned indicating an error.
541 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]542int http_header_add_tail2(struct http_msg *msg,
543 struct hdr_idx *hdr_idx, const char *text, int len)
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]544{
545 int bytes;
546
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]547 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]548 if (!bytes)
549 return -1;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]550 http_msg_move_end(msg, bytes);
Willy Tarreau4af6f3a2007-03-18 22:36:26 +0100[diff] [blame]551 return hdr_idx_add(len, 1, hdr_idx, hdr_idx->tail);
552}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]553
554/*
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]555 * Checks if <hdr> is exactly <name> for <len> chars, and ends with a colon.
556 * If so, returns the position of the first non-space character relative to
557 * <hdr>, or <end>-<hdr> if not found before. If no value is found, it tries
558 * to return a pointer to the place after the first space. Returns 0 if the
559 * header name does not match. Checks are case-insensitive.
560 */
561int http_header_match2(const char *hdr, const char *end,
562 const char *name, int len)
563{
564 const char *val;
565
566 if (hdr + len >= end)
567 return 0;
568 if (hdr[len] != ':')
569 return 0;
570 if (strncasecmp(hdr, name, len) != 0)
571 return 0;
572 val = hdr + len + 1;
573 while (val < end && HTTP_IS_SPHT(*val))
574 val++;
575 if ((val >= end) && (len + 2 <= end - hdr))
576 return len + 2; /* we may replace starting from second space */
577 return val - hdr;
578}
579
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]580/* Find the first or next occurrence of header <name> in message buffer <sol>
581 * using headers index <idx>, and return it in the <ctx> structure. This
582 * structure holds everything necessary to use the header and find next
583 * occurrence. If its <idx> member is 0, the header is searched from the
584 * beginning. Otherwise, the next occurrence is returned. The function returns
585 * 1 when it finds a value, and 0 when there is no more. It is very similar to
586 * http_find_header2() except that it is designed to work with full-line headers
587 * whose comma is not a delimiter but is part of the syntax. As a special case,
588 * if ctx->val is NULL when searching for a new values of a header, the current
589 * header is rescanned. This allows rescanning after a header deletion.
590 */
591int http_find_full_header2(const char *name, int len,
592 char *sol, struct hdr_idx *idx,
593 struct hdr_ctx *ctx)
594{
595 char *eol, *sov;
596 int cur_idx, old_idx;
597
598 cur_idx = ctx->idx;
599 if (cur_idx) {
600 /* We have previously returned a header, let's search another one */
601 sol = ctx->line;
602 eol = sol + idx->v[cur_idx].len;
603 goto next_hdr;
604 }
605
606 /* first request for this header */
607 sol += hdr_idx_first_pos(idx);
608 old_idx = 0;
609 cur_idx = hdr_idx_first_idx(idx);
610 while (cur_idx) {
611 eol = sol + idx->v[cur_idx].len;
612
613 if (len == 0) {
614 /* No argument was passed, we want any header.
615 * To achieve this, we simply build a fake request. */
616 while (sol + len < eol && sol[len] != ':')
617 len++;
618 name = sol;
619 }
620
621 if ((len < eol - sol) &&
622 (sol[len] == ':') &&
623 (strncasecmp(sol, name, len) == 0)) {
624 ctx->del = len;
625 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]626 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]627 sov++;
628
629 ctx->line = sol;
630 ctx->prev = old_idx;
631 ctx->idx = cur_idx;
632 ctx->val = sov - sol;
633 ctx->tws = 0;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]634 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]635 eol--;
636 ctx->tws++;
637 }
638 ctx->vlen = eol - sov;
639 return 1;
640 }
641 next_hdr:
642 sol = eol + idx->v[cur_idx].cr + 1;
643 old_idx = cur_idx;
644 cur_idx = idx->v[cur_idx].next;
645 }
646 return 0;
647}
648
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]649/* Find the first or next header field in message buffer <sol> using headers
650 * index <idx>, and return it in the <ctx> structure. This structure holds
651 * everything necessary to use the header and find next occurrence. If its
652 * <idx> member is 0, the first header is retrieved. Otherwise, the next
653 * occurrence is returned. The function returns 1 when it finds a value, and
654 * 0 when there is no more. It is equivalent to http_find_full_header2() with
655 * no header name.
656 */
657int http_find_next_header(char *sol, struct hdr_idx *idx, struct hdr_ctx *ctx)
658{
659 char *eol, *sov;
660 int cur_idx, old_idx;
661 int len;
662
663 cur_idx = ctx->idx;
664 if (cur_idx) {
665 /* We have previously returned a header, let's search another one */
666 sol = ctx->line;
667 eol = sol + idx->v[cur_idx].len;
668 goto next_hdr;
669 }
670
671 /* first request for this header */
672 sol += hdr_idx_first_pos(idx);
673 old_idx = 0;
674 cur_idx = hdr_idx_first_idx(idx);
675 while (cur_idx) {
676 eol = sol + idx->v[cur_idx].len;
677
678 len = 0;
679 while (1) {
680 if (len >= eol - sol)
681 goto next_hdr;
682 if (sol[len] == ':')
683 break;
684 len++;
685 }
686
687 ctx->del = len;
688 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]689 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]690 sov++;
691
692 ctx->line = sol;
693 ctx->prev = old_idx;
694 ctx->idx = cur_idx;
695 ctx->val = sov - sol;
696 ctx->tws = 0;
697
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]698 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreauc90dc232015-02-20 13:51:36 +0100[diff] [blame]699 eol--;
700 ctx->tws++;
701 }
702 ctx->vlen = eol - sov;
703 return 1;
704
705 next_hdr:
706 sol = eol + idx->v[cur_idx].cr + 1;
707 old_idx = cur_idx;
708 cur_idx = idx->v[cur_idx].next;
709 }
710 return 0;
711}
712
Lukas Tribus23953682017-04-28 13:24:30 +0000[diff] [blame]713/* Find the end of the header value contained between <s> and <e>. See RFC7230,
714 * par 3.2 for more information. Note that it requires a valid header to return
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]715 * a valid result. This works for headers defined as comma-separated lists.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]716 */
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]717char *find_hdr_value_end(char *s, const char *e)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]718{
719 int quoted, qdpair;
720
721 quoted = qdpair = 0;
Willy Tarreaue6d9c212016-11-05 18:23:38 +0100[diff] [blame]722
723#if defined(__x86_64__) || \
724 defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) || \
725 defined(__ARM_ARCH_7A__)
726 /* speedup: skip everything not a comma nor a double quote */
727 for (; s <= e - sizeof(int); s += sizeof(int)) {
728 unsigned int c = *(int *)s; // comma
729 unsigned int q = c; // quote
730
731 c ^= 0x2c2c2c2c; // contains one zero on a comma
732 q ^= 0x22222222; // contains one zero on a quote
733
734 c = (c - 0x01010101) & ~c; // contains 0x80 below a comma
735 q = (q - 0x01010101) & ~q; // contains 0x80 below a quote
736
737 if ((c | q) & 0x80808080)
738 break; // found a comma or a quote
739 }
740#endif
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]741 for (; s < e; s++) {
742 if (qdpair) qdpair = 0;
Willy Tarreau0f7f51f2010-08-30 11:06:34 +0200[diff] [blame]743 else if (quoted) {
744 if (*s == '\\') qdpair = 1;
745 else if (*s == '"') quoted = 0;
746 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]747 else if (*s == '"') quoted = 1;
748 else if (*s == ',') return s;
749 }
750 return s;
751}
752
753/* Find the first or next occurrence of header <name> in message buffer <sol>
754 * using headers index <idx>, and return it in the <ctx> structure. This
755 * structure holds everything necessary to use the header and find next
756 * occurrence. If its <idx> member is 0, the header is searched from the
757 * beginning. Otherwise, the next occurrence is returned. The function returns
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]758 * 1 when it finds a value, and 0 when there is no more. It is designed to work
759 * with headers defined as comma-separated lists. As a special case, if ctx->val
760 * is NULL when searching for a new values of a header, the current header is
761 * rescanned. This allows rescanning after a header deletion.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]762 */
763int http_find_header2(const char *name, int len,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]764 char *sol, struct hdr_idx *idx,
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]765 struct hdr_ctx *ctx)
766{
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]767 char *eol, *sov;
768 int cur_idx, old_idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]769
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]770 cur_idx = ctx->idx;
771 if (cur_idx) {
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]772 /* We have previously returned a value, let's search
773 * another one on the same line.
774 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]775 sol = ctx->line;
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]776 ctx->del = ctx->val + ctx->vlen + ctx->tws;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]777 sov = sol + ctx->del;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]778 eol = sol + idx->v[cur_idx].len;
779
780 if (sov >= eol)
781 /* no more values in this header */
782 goto next_hdr;
783
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]784 /* values remaining for this header, skip the comma but save it
785 * for later use (eg: for header deletion).
786 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]787 sov++;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]788 while (sov < eol && HTTP_IS_LWS((*sov)))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]789 sov++;
790
791 goto return_hdr;
792 }
793
794 /* first request for this header */
795 sol += hdr_idx_first_pos(idx);
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]796 old_idx = 0;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]797 cur_idx = hdr_idx_first_idx(idx);
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]798 while (cur_idx) {
799 eol = sol + idx->v[cur_idx].len;
800
Willy Tarreau1ad7c6d2007-06-10 21:42:55 +0200[diff] [blame]801 if (len == 0) {
802 /* No argument was passed, we want any header.
803 * To achieve this, we simply build a fake request. */
804 while (sol + len < eol && sol[len] != ':')
805 len++;
806 name = sol;
807 }
808
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]809 if ((len < eol - sol) &&
810 (sol[len] == ':') &&
811 (strncasecmp(sol, name, len) == 0)) {
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]812 ctx->del = len;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]813 sov = sol + len + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]814 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]815 sov++;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]816
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]817 ctx->line = sol;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]818 ctx->prev = old_idx;
819 return_hdr:
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]820 ctx->idx = cur_idx;
821 ctx->val = sov - sol;
822
823 eol = find_hdr_value_end(sov, eol);
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]824 ctx->tws = 0;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]825 while (eol > sov && HTTP_IS_LWS(*(eol - 1))) {
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]826 eol--;
827 ctx->tws++;
828 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]829 ctx->vlen = eol - sov;
830 return 1;
831 }
832 next_hdr:
833 sol = eol + idx->v[cur_idx].cr + 1;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]834 old_idx = cur_idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]835 cur_idx = idx->v[cur_idx].next;
836 }
837 return 0;
838}
839
840int http_find_header(const char *name,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]841 char *sol, struct hdr_idx *idx,
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]842 struct hdr_ctx *ctx)
843{
844 return http_find_header2(name, strlen(name), sol, idx, ctx);
845}
846
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]847/* Remove one value of a header. This only works on a <ctx> returned by one of
848 * the http_find_header functions. The value is removed, as well as surrounding
849 * commas if any. If the removed value was alone, the whole header is removed.
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]850 * The ctx is always updated accordingly, as well as the buffer and HTTP
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]851 * message <msg>. The new index is returned. If it is zero, it means there is
852 * no more header, so any processing may stop. The ctx is always left in a form
853 * that can be handled by http_find_header2() to find next occurrence.
854 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]855int 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]856{
857 int cur_idx = ctx->idx;
858 char *sol = ctx->line;
859 struct hdr_idx_elem *hdr;
860 int delta, skip_comma;
861
862 if (!cur_idx)
863 return 0;
864
865 hdr = &idx->v[cur_idx];
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]866 if (sol[ctx->del] == ':' && ctx->val + ctx->vlen + ctx->tws == hdr->len) {
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]867 /* This was the only value of the header, we must now remove it entirely. */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]868 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]869 http_msg_move_end(msg, delta);
870 idx->used--;
871 hdr->len = 0; /* unused entry */
872 idx->v[ctx->prev].next = idx->v[ctx->idx].next;
Willy Tarreau5c4784f2011-02-12 13:07:35 +0100[diff] [blame]873 if (idx->tail == ctx->idx)
874 idx->tail = ctx->prev;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]875 ctx->idx = ctx->prev; /* walk back to the end of previous header */
Willy Tarreau7c1c2172015-01-07 17:23:50 +0100[diff] [blame]876 ctx->line -= idx->v[ctx->idx].len + idx->v[ctx->idx].cr + 1;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]877 ctx->val = idx->v[ctx->idx].len; /* point to end of previous header */
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]878 ctx->tws = ctx->vlen = 0;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]879 return ctx->idx;
880 }
881
882 /* This was not the only value of this header. We have to remove between
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]883 * ctx->del+1 and ctx->val+ctx->vlen+ctx->tws+1 included. If it is the
884 * last entry of the list, we remove the last separator.
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]885 */
886
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]887 skip_comma = (ctx->val + ctx->vlen + ctx->tws == hdr->len) ? 0 : 1;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]888 delta = buffer_replace2(msg->chn->buf, sol + ctx->del + skip_comma,
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]889 sol + ctx->val + ctx->vlen + ctx->tws + skip_comma,
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]890 NULL, 0);
891 hdr->len += delta;
892 http_msg_move_end(msg, delta);
893 ctx->val = ctx->del;
Willy Tarreau588bd4f2011-09-01 22:22:28 +0200[diff] [blame]894 ctx->tws = ctx->vlen = 0;
Willy Tarreau68085d82010-01-18 14:54:04 +0100[diff] [blame]895 return ctx->idx;
896}
897
Willy Tarreau2d3d94c2008-11-30 20:20:08 +0100[diff] [blame]898/* This function handles a server error at the stream interface level. The
899 * stream interface is assumed to be already in a closed state. An optional
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]900 * message is copied into the input buffer.
Willy Tarreau2d3d94c2008-11-30 20:20:08 +0100[diff] [blame]901 * The error flags are set to the values in arguments. Any pending request
Willy Tarreau6f0aa472009-03-08 20:33:29 +0100[diff] [blame]902 * in this buffer will be lost.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]903 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]904static void http_server_error(struct stream *s, struct stream_interface *si,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]905 int err, int finst, const struct chunk *msg)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]906{
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]907 FLT_STRM_CB(s, flt_http_reply(s, s->txn->status, msg));
Willy Tarreau2bb4a962014-11-28 11:11:05 +0100[diff] [blame]908 channel_auto_read(si_oc(si));
909 channel_abort(si_oc(si));
910 channel_auto_close(si_oc(si));
911 channel_erase(si_oc(si));
912 channel_auto_close(si_ic(si));
913 channel_auto_read(si_ic(si));
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]914 if (msg)
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]915 co_inject(si_ic(si), msg->str, msg->len);
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]916 if (!(s->flags & SF_ERR_MASK))
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]917 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]918 if (!(s->flags & SF_FINST_MASK))
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]919 s->flags |= finst;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]920}
921
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]922/* This function returns the appropriate error location for the given stream
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]923 * and message.
924 */
925
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]926struct chunk *http_error_message(struct stream *s)
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]927{
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]928 const int msgnum = http_get_status_idx(s->txn->status);
929
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200[diff] [blame]930 if (s->be->errmsg[msgnum].str)
931 return &s->be->errmsg[msgnum];
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]932 else if (strm_fe(s)->errmsg[msgnum].str)
933 return &strm_fe(s)->errmsg[msgnum];
Willy Tarreau80587432006-12-24 17:47:20 +0100[diff] [blame]934 else
935 return &http_err_chunks[msgnum];
936}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]937
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]938void
939http_reply_and_close(struct stream *s, short status, struct chunk *msg)
940{
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]941 s->txn->flags &= ~TX_WAIT_NEXT_RQ;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]942 FLT_STRM_CB(s, flt_http_reply(s, status, msg));
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]943 stream_int_retnclose(&s->si[0], msg);
944}
945
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]946/*
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]947 * returns a known method among HTTP_METH_* or HTTP_METH_OTHER for all unknown
948 * ones.
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]949 */
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]950enum http_meth_t find_http_meth(const char *str, const int len)
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]951{
952 unsigned char m;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]953 const struct http_method_desc *h;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]954
955 m = ((unsigned)*str - 'A');
956
957 if (m < 26) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]958 for (h = http_methods[m]; h->len > 0; h++) {
959 if (unlikely(h->len != len))
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]960 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]961 if (likely(memcmp(str, h->text, h->len) == 0))
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]962 return h->meth;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]963 };
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]964 }
Willy Tarreaub7ce4242015-09-03 17:15:21 +0200[diff] [blame]965 return HTTP_METH_OTHER;
Willy Tarreau53b6c742006-12-17 13:37:46 +0100[diff] [blame]966}
967
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]968/* Parse the URI from the given transaction (which is assumed to be in request
969 * phase) and look for the "/" beginning the PATH. If not found, return NULL.
970 * It is returned otherwise.
971 */
Thierry FOURNIER3c331782015-09-17 19:33:35 +0200[diff] [blame]972char *http_get_path(struct http_txn *txn)
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]973{
974 char *ptr, *end;
975
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]976 ptr = txn->req.chn->buf->p + txn->req.sl.rq.u;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]977 end = ptr + txn->req.sl.rq.u_l;
978
979 if (ptr >= end)
980 return NULL;
981
Lukas Tribus23953682017-04-28 13:24:30 +0000[diff] [blame]982 /* RFC7230, par. 2.7 :
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]983 * Request-URI = "*" | absuri | abspath | authority
984 */
985
986 if (*ptr == '*')
987 return NULL;
988
989 if (isalpha((unsigned char)*ptr)) {
990 /* this is a scheme as described by RFC3986, par. 3.1 */
991 ptr++;
992 while (ptr < end &&
993 (isalnum((unsigned char)*ptr) || *ptr == '+' || *ptr == '-' || *ptr == '.'))
994 ptr++;
995 /* skip '://' */
996 if (ptr == end || *ptr++ != ':')
997 return NULL;
998 if (ptr == end || *ptr++ != '/')
999 return NULL;
1000 if (ptr == end || *ptr++ != '/')
1001 return NULL;
1002 }
1003 /* skip [user[:passwd]@]host[:[port]] */
1004
1005 while (ptr < end && *ptr != '/')
1006 ptr++;
1007
1008 if (ptr == end)
1009 return NULL;
1010
1011 /* OK, we got the '/' ! */
1012 return ptr;
1013}
1014
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]1015/* Parse the URI from the given string and look for the "/" beginning the PATH.
1016 * If not found, return NULL. It is returned otherwise.
1017 */
1018static char *
1019http_get_path_from_string(char *str)
1020{
1021 char *ptr = str;
1022
1023 /* RFC2616, par. 5.1.2 :
1024 * Request-URI = "*" | absuri | abspath | authority
1025 */
1026
1027 if (*ptr == '*')
1028 return NULL;
1029
1030 if (isalpha((unsigned char)*ptr)) {
1031 /* this is a scheme as described by RFC3986, par. 3.1 */
1032 ptr++;
1033 while (isalnum((unsigned char)*ptr) || *ptr == '+' || *ptr == '-' || *ptr == '.')
1034 ptr++;
1035 /* skip '://' */
1036 if (*ptr == '\0' || *ptr++ != ':')
1037 return NULL;
1038 if (*ptr == '\0' || *ptr++ != '/')
1039 return NULL;
1040 if (*ptr == '\0' || *ptr++ != '/')
1041 return NULL;
1042 }
1043 /* skip [user[:passwd]@]host[:[port]] */
1044
1045 while (*ptr != '\0' && *ptr != ' ' && *ptr != '/')
1046 ptr++;
1047
1048 if (*ptr == '\0' || *ptr == ' ')
1049 return NULL;
1050
1051 /* OK, we got the '/' ! */
1052 return ptr;
1053}
1054
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]1055/* Returns a 302 for a redirectable request that reaches a server working in
1056 * in redirect mode. This may only be called just after the stream interface
1057 * has moved to SI_ST_ASS. Unprocessable requests are left unchanged and will
1058 * follow normal proxy processing. NOTE: this function is designed to support
1059 * being called once data are scheduled for forwarding.
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1060 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1061void http_perform_server_redirect(struct stream *s, struct stream_interface *si)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1062{
1063 struct http_txn *txn;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1064 struct server *srv;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1065 char *path;
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1066 int len, rewind;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1067
1068 /* 1: create the response header */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1069 trash.len = strlen(HTTP_302);
1070 memcpy(trash.str, HTTP_302, trash.len);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1071
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]1072 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1073
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1074 /* 2: add the server's prefix */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1075 if (trash.len + srv->rdr_len > trash.size)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1076 return;
1077
Willy Tarreaudcb75c42010-01-10 00:24:22 +0100[diff] [blame]1078 /* special prefix "/" means don't change URL */
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]1079 if (srv->rdr_len != 1 || *srv->rdr_pfx != '/') {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1080 memcpy(trash.str + trash.len, srv->rdr_pfx, srv->rdr_len);
1081 trash.len += srv->rdr_len;
Willy Tarreaudcb75c42010-01-10 00:24:22 +0100[diff] [blame]1082 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1083
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1084 /* 3: add the request URI. Since it was already forwarded, we need
1085 * to temporarily rewind the buffer.
1086 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1087 txn = s->txn;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1088 b_rew(s->req.buf, rewind = http_hdr_rewind(&txn->req));
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1089
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1090 path = http_get_path(txn);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1091 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]1092
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1093 b_adv(s->req.buf, rewind);
Willy Tarreaucde18fc2012-05-30 07:59:54 +0200[diff] [blame]1094
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1095 if (!path)
1096 return;
1097
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1098 if (trash.len + len > trash.size - 4) /* 4 for CRLF-CRLF */
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1099 return;
1100
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1101 memcpy(trash.str + trash.len, path, len);
1102 trash.len += len;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1103
1104 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1105 memcpy(trash.str + trash.len, "\r\nProxy-Connection: close\r\n\r\n", 29);
1106 trash.len += 29;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1107 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]1108 memcpy(trash.str + trash.len, "\r\nConnection: close\r\n\r\n", 23);
1109 trash.len += 23;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1110 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1111
1112 /* prepare to return without error. */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200[diff] [blame]1113 si_shutr(si);
1114 si_shutw(si);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1115 si->err_type = SI_ET_NONE;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1116 si->state = SI_ST_CLO;
1117
1118 /* send the message */
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1119 txn->status = 302;
1120 http_server_error(s, si, SF_ERR_LOCAL, SF_FINST_C, &trash);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1121
1122 /* FIXME: we should increase a counter of redirects per server and per backend. */
Willy Tarreau4521ba62013-01-24 01:25:25 +0100[diff] [blame]1123 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -0500[diff] [blame]1124 srv_set_sess_last(srv);
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1125}
1126
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100[diff] [blame]1127/* Return the error message corresponding to si->err_type. It is assumed
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1128 * that the server side is closed. Note that err_type is actually a
1129 * bitmask, where almost only aborts may be cumulated with other
1130 * values. We consider that aborted operations are more important
1131 * than timeouts or errors due to the fact that nobody else in the
1132 * logs might explain incomplete retries. All others should avoid
1133 * being cumulated. It should normally not be possible to have multiple
1134 * aborts at once, but just in case, the first one in sequence is reported.
Willy Tarreau6b726ad2013-12-15 19:31:37 +0100[diff] [blame]1135 * Note that connection errors appearing on the second request of a keep-alive
1136 * connection are not reported since this allows the client to retry.
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1137 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1138void http_return_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1139{
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100[diff] [blame]1140 int err_type = si->err_type;
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1141
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1142 /* set s->txn->status for http_error_message(s) */
1143 s->txn->status = 503;
1144
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1145 if (err_type & SI_ET_QUEUE_ABRT)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1146 http_server_error(s, si, SF_ERR_CLICL, SF_FINST_Q,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1147 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1148 else if (err_type & SI_ET_CONN_ABRT)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1149 http_server_error(s, si, SF_ERR_CLICL, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1150 (s->txn->flags & TX_NOT_FIRST) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1151 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1152 else if (err_type & SI_ET_QUEUE_TO)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1153 http_server_error(s, si, SF_ERR_SRVTO, SF_FINST_Q,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1154 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1155 else if (err_type & SI_ET_QUEUE_ERR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1156 http_server_error(s, si, SF_ERR_SRVCL, SF_FINST_Q,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1157 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1158 else if (err_type & SI_ET_CONN_TO)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1159 http_server_error(s, si, SF_ERR_SRVTO, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1160 (s->txn->flags & TX_NOT_FIRST) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1161 http_error_message(s));
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1162 else if (err_type & SI_ET_CONN_ERR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1163 http_server_error(s, si, SF_ERR_SRVCL, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1164 (s->flags & SF_SRV_REUSED) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1165 http_error_message(s));
Willy Tarreau2d400bb2012-05-14 12:11:47 +0200[diff] [blame]1166 else if (err_type & SI_ET_CONN_RES)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1167 http_server_error(s, si, SF_ERR_RESOURCE, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1168 (s->txn->flags & TX_NOT_FIRST) ? NULL :
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1169 http_error_message(s));
1170 else { /* SI_ET_CONN_OTHER and others */
1171 s->txn->status = 500;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1172 http_server_error(s, si, SF_ERR_INTERNAL, SF_FINST_C,
Willy Tarreau2019f952017-03-14 11:07:31 +0100[diff] [blame]1173 http_error_message(s));
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1174 }
Willy Tarreauefb453c2008-10-26 20:49:47 +0100[diff] [blame]1175}
1176
Willy Tarreau42250582007-04-01 01:30:43 +0200[diff] [blame]1177extern const char sess_term_cond[8];
1178extern const char sess_fin_state[8];
1179extern const char *monthname[12];
Willy Tarreau63986c72015-04-03 22:55:33 +0200[diff] [blame]1180struct pool_head *pool2_http_txn;
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200[diff] [blame]1181struct pool_head *pool2_requri;
Willy Tarreau193b8c62012-11-22 00:17:38 +0100[diff] [blame]1182struct pool_head *pool2_capture = NULL;
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]1183struct pool_head *pool2_uniqueid;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1184
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1185/*
1186 * Capture headers from message starting at <som> according to header list
Willy Tarreau54da8db2014-06-13 16:11:48 +0200[diff] [blame]1187 * <cap_hdr>, and fill the <cap> pointers appropriately.
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1188 */
1189void capture_headers(char *som, struct hdr_idx *idx,
1190 char **cap, struct cap_hdr *cap_hdr)
1191{
1192 char *eol, *sol, *col, *sov;
1193 int cur_idx;
1194 struct cap_hdr *h;
1195 int len;
1196
1197 sol = som + hdr_idx_first_pos(idx);
1198 cur_idx = hdr_idx_first_idx(idx);
1199
1200 while (cur_idx) {
1201 eol = sol + idx->v[cur_idx].len;
1202
1203 col = sol;
1204 while (col < eol && *col != ':')
1205 col++;
1206
1207 sov = col + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]1208 while (sov < eol && HTTP_IS_LWS(*sov))
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1209 sov++;
1210
1211 for (h = cap_hdr; h; h = h->next) {
Willy Tarreau54da8db2014-06-13 16:11:48 +0200[diff] [blame]1212 if (h->namelen && (h->namelen == col - sol) &&
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1213 (strncasecmp(sol, h->name, h->namelen) == 0)) {
1214 if (cap[h->index] == NULL)
1215 cap[h->index] =
Willy Tarreaucf7f3202007-05-13 22:46:04 +0200[diff] [blame]1216 pool_alloc2(h->pool);
Willy Tarreau117f59e2007-03-04 18:17:17 +0100[diff] [blame]1217
1218 if (cap[h->index] == NULL) {
1219 Alert("HTTP capture : out of memory.\n");
1220 continue;
1221 }
1222
1223 len = eol - sov;
1224 if (len > h->len)
1225 len = h->len;
1226
1227 memcpy(cap[h->index], sov, len);
1228 cap[h->index][len]=0;
1229 }
1230 }
1231 sol = eol + idx->v[cur_idx].cr + 1;
1232 cur_idx = idx->v[cur_idx].next;
1233 }
1234}
1235
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]1236/*
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1237 * Returns the data from Authorization header. Function may be called more
1238 * than once so data is stored in txn->auth_data. When no header is found
1239 * 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]1240 * searching again for something we are unable to find anyway. However, if
1241 * the result if valid, the cache is not reused because we would risk to
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1242 * have the credentials overwritten by another stream in parallel.
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1243 */
1244
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1245int
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1246get_http_auth(struct stream *s)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1247{
1248
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1249 struct http_txn *txn = s->txn;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1250 struct chunk auth_method;
1251 struct hdr_ctx ctx;
1252 char *h, *p;
1253 int len;
1254
1255#ifdef DEBUG_AUTH
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1256 printf("Auth for stream %p: %d\n", s, txn->auth.method);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1257#endif
1258
1259 if (txn->auth.method == HTTP_AUTH_WRONG)
1260 return 0;
1261
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1262 txn->auth.method = HTTP_AUTH_WRONG;
1263
1264 ctx.idx = 0;
Willy Tarreau844a7e72010-01-31 21:46:18 +0100[diff] [blame]1265
1266 if (txn->flags & TX_USE_PX_CONN) {
1267 h = "Proxy-Authorization";
1268 len = strlen(h);
1269 } else {
1270 h = "Authorization";
1271 len = strlen(h);
1272 }
1273
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1274 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]1275 return 0;
1276
1277 h = ctx.line + ctx.val;
1278
1279 p = memchr(h, ' ', ctx.vlen);
Willy Tarreau5c557d12016-03-13 08:17:02 +0100[diff] [blame]1280 len = p - h;
1281 if (!p || len <= 0)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1282 return 0;
1283
David Carlier7365f7d2016-04-04 11:54:42 +0100[diff] [blame]1284 if (chunk_initlen(&auth_method, h, 0, len) != 1)
1285 return 0;
1286
Willy Tarreau5c557d12016-03-13 08:17:02 +0100[diff] [blame]1287 chunk_initlen(&txn->auth.method_data, p + 1, 0, ctx.vlen - len - 1);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1288
1289 if (!strncasecmp("Basic", auth_method.str, auth_method.len)) {
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1290 struct chunk *http_auth = get_trash_chunk();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1291
1292 len = base64dec(txn->auth.method_data.str, txn->auth.method_data.len,
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1293 http_auth->str, global.tune.bufsize - 1);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1294
1295 if (len < 0)
1296 return 0;
1297
1298
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1299 http_auth->str[len] = '\0';
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1300
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1301 p = strchr(http_auth->str, ':');
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1302
1303 if (!p)
1304 return 0;
1305
Christopher Faulet6988f672017-07-27 15:18:52 +0200[diff] [blame]1306 txn->auth.user = http_auth->str;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1307 *p = '\0';
1308 txn->auth.pass = p+1;
1309
1310 txn->auth.method = HTTP_AUTH_BASIC;
1311 return 1;
1312 }
1313
1314 return 0;
1315}
1316
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]1317
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1318/* convert an HTTP/0.9 request into an HTTP/1.0 request. Returns 1 if the
1319 * conversion succeeded, 0 in case of error. If the request was already 1.X,
1320 * nothing is done and 1 is returned.
1321 */
Willy Tarreau418bfcc2012-03-09 13:56:20 +0100[diff] [blame]1322static int http_upgrade_v09_to_v10(struct http_txn *txn)
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1323{
1324 int delta;
1325 char *cur_end;
Willy Tarreau418bfcc2012-03-09 13:56:20 +0100[diff] [blame]1326 struct http_msg *msg = &txn->req;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1327
1328 if (msg->sl.rq.v_l != 0)
1329 return 1;
1330
Apollon Oikonomopoulos25a15222014-04-06 02:46:00 +0300[diff] [blame]1331 /* RFC 1945 allows only GET for HTTP/0.9 requests */
1332 if (txn->meth != HTTP_METH_GET)
1333 return 0;
1334
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1335 cur_end = msg->chn->buf->p + msg->sl.rq.l;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1336
1337 if (msg->sl.rq.u_l == 0) {
Apollon Oikonomopoulos25a15222014-04-06 02:46:00 +0300[diff] [blame]1338 /* HTTP/0.9 requests *must* have a request URI, per RFC 1945 */
1339 return 0;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1340 }
1341 /* add HTTP version */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1342 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]1343 http_msg_move_end(msg, delta);
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1344 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]1345 cur_end = (char *)http_parse_reqline(msg,
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1346 HTTP_MSG_RQMETH,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1347 msg->chn->buf->p, cur_end + 1,
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]1348 NULL, NULL);
1349 if (unlikely(!cur_end))
1350 return 0;
1351
1352 /* we have a full HTTP/1.0 request now and we know that
1353 * we have either a CR or an LF at <ptr>.
1354 */
1355 hdr_idx_set_start(&txn->hdr_idx, msg->sl.rq.l, *cur_end == '\r');
1356 return 1;
1357}
1358
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1359/* Parse the Connection: header of an HTTP request, looking for both "close"
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1360 * and "keep-alive" values. If we already know that some headers may safely
1361 * be removed, we remove them now. The <to_del> flags are used for that :
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1362 * - bit 0 means remove "close" headers (in HTTP/1.0 requests/responses)
1363 * - 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]1364 * Presence of the "Upgrade" token is also checked and reported.
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1365 * The TX_HDR_CONN_* flags are adjusted in txn->flags depending on what was
1366 * found, and TX_CON_*_SET is adjusted depending on what is left so only
1367 * harmless combinations may be removed. Do not call that after changes have
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1368 * been processed.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1369 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1370void 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]1371{
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1372 struct hdr_ctx ctx;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1373 const char *hdr_val = "Connection";
1374 int hdr_len = 10;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1375
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1376 if (txn->flags & TX_HDR_CONN_PRS)
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1377 return;
1378
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1379 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1380 hdr_val = "Proxy-Connection";
1381 hdr_len = 16;
1382 }
1383
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1384 ctx.idx = 0;
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1385 txn->flags &= ~(TX_CON_KAL_SET|TX_CON_CLO_SET);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1386 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]1387 if (ctx.vlen >= 10 && word_match(ctx.line + ctx.val, ctx.vlen, "keep-alive", 10)) {
1388 txn->flags |= TX_HDR_CONN_KAL;
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1389 if (to_del & 2)
1390 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1391 else
1392 txn->flags |= TX_CON_KAL_SET;
1393 }
1394 else if (ctx.vlen >= 5 && word_match(ctx.line + ctx.val, ctx.vlen, "close", 5)) {
1395 txn->flags |= TX_HDR_CONN_CLO;
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1396 if (to_del & 1)
1397 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1398 else
1399 txn->flags |= TX_CON_CLO_SET;
1400 }
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]1401 else if (ctx.vlen >= 7 && word_match(ctx.line + ctx.val, ctx.vlen, "upgrade", 7)) {
1402 txn->flags |= TX_HDR_CONN_UPG;
1403 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1404 }
1405
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1406 txn->flags |= TX_HDR_CONN_PRS;
1407 return;
1408}
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1409
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1410/* Apply desired changes on the Connection: header. Values may be removed and/or
1411 * added depending on the <wanted> flags, which are exclusively composed of
1412 * TX_CON_CLO_SET and TX_CON_KAL_SET, depending on what flags are desired. The
1413 * TX_CON_*_SET flags are adjusted in txn->flags depending on what is left.
1414 */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1415void http_change_connection_header(struct http_txn *txn, struct http_msg *msg, int wanted)
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1416{
1417 struct hdr_ctx ctx;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1418 const char *hdr_val = "Connection";
1419 int hdr_len = 10;
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1420
1421 ctx.idx = 0;
1422
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1423
1424 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1425 hdr_val = "Proxy-Connection";
1426 hdr_len = 16;
1427 }
1428
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1429 txn->flags &= ~(TX_CON_CLO_SET | TX_CON_KAL_SET);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1430 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]1431 if (ctx.vlen >= 10 && word_match(ctx.line + ctx.val, ctx.vlen, "keep-alive", 10)) {
1432 if (wanted & TX_CON_KAL_SET)
1433 txn->flags |= TX_CON_KAL_SET;
1434 else
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1435 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1436 }
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1437 else if (ctx.vlen >= 5 && word_match(ctx.line + ctx.val, ctx.vlen, "close", 5)) {
1438 if (wanted & TX_CON_CLO_SET)
1439 txn->flags |= TX_CON_CLO_SET;
1440 else
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1441 http_remove_header2(msg, &txn->hdr_idx, &ctx);
Willy Tarreau0dfdf192010-01-05 11:33:11 +0100[diff] [blame]1442 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1443 }
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1444
1445 if (wanted == (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
1446 return;
1447
1448 if ((wanted & TX_CON_CLO_SET) && !(txn->flags & TX_CON_CLO_SET)) {
1449 txn->flags |= TX_CON_CLO_SET;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1450 hdr_val = "Connection: close";
1451 hdr_len = 17;
1452 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1453 hdr_val = "Proxy-Connection: close";
1454 hdr_len = 23;
1455 }
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1456 http_header_add_tail2(msg, &txn->hdr_idx, hdr_val, hdr_len);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1457 }
1458
1459 if ((wanted & TX_CON_KAL_SET) && !(txn->flags & TX_CON_KAL_SET)) {
1460 txn->flags |= TX_CON_KAL_SET;
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1461 hdr_val = "Connection: keep-alive";
1462 hdr_len = 22;
1463 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
1464 hdr_val = "Proxy-Connection: keep-alive";
1465 hdr_len = 28;
1466 }
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]1467 http_header_add_tail2(msg, &txn->hdr_idx, hdr_val, hdr_len);
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]1468 }
1469 return;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1470}
1471
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1472/* Parses a qvalue and returns it multipled by 1000, from 0 to 1000. If the
1473 * value is larger than 1000, it is bound to 1000. The parser consumes up to
1474 * 1 digit, one dot and 3 digits and stops on the first invalid character.
1475 * Unparsable qvalues return 1000 as "q=1.000".
1476 */
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]1477int parse_qvalue(const char *qvalue, const char **end)
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1478{
1479 int q = 1000;
1480
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1481 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1482 goto out;
1483 q = (*qvalue++ - '0') * 1000;
1484
1485 if (*qvalue++ != '.')
1486 goto out;
1487
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1488 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1489 goto out;
1490 q += (*qvalue++ - '0') * 100;
1491
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1492 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1493 goto out;
1494 q += (*qvalue++ - '0') * 10;
1495
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]1496 if (!isdigit((unsigned char)*qvalue))
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1497 goto out;
1498 q += (*qvalue++ - '0') * 1;
1499 out:
1500 if (q > 1000)
1501 q = 1000;
Willy Tarreau38b3aa52014-04-22 23:32:05 +0200[diff] [blame]1502 if (end)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]1503 *end = qvalue;
Willy Tarreau0e9b1b42014-03-19 12:07:52 +0100[diff] [blame]1504 return q;
1505}
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]1506
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1507void 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]1508{
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]1509 struct proxy *fe = strm_fe(s);
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1510 int tmp = TX_CON_WANT_KAL;
1511
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1512 if (!((fe->options2|s->be->options2) & PR_O2_FAKE_KA)) {
1513 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_TUN ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1514 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_TUN)
1515 tmp = TX_CON_WANT_TUN;
1516
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1517 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1518 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)
1519 tmp = TX_CON_WANT_TUN;
1520 }
1521
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1522 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1523 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL) {
1524 /* option httpclose + server_close => forceclose */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1525 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1526 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)
1527 tmp = TX_CON_WANT_CLO;
1528 else
1529 tmp = TX_CON_WANT_SCL;
1530 }
1531
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1532 if ((fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_FCL ||
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1533 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_FCL)
1534 tmp = TX_CON_WANT_CLO;
1535
1536 if ((txn->flags & TX_CON_WANT_MSK) < tmp)
1537 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | tmp;
1538
1539 if (!(txn->flags & TX_HDR_CONN_PRS) &&
1540 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) {
1541 /* parse the Connection header and possibly clean it */
1542 int to_del = 0;
1543 if ((msg->flags & HTTP_MSGF_VER_11) ||
1544 ((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1545 !((fe->options2|s->be->options2) & PR_O2_FAKE_KA)))
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1546 to_del |= 2; /* remove "keep-alive" */
1547 if (!(msg->flags & HTTP_MSGF_VER_11))
1548 to_del |= 1; /* remove "close" */
1549 http_parse_connection_header(txn, msg, to_del);
1550 }
1551
1552 /* check if client or config asks for explicit close in KAL/SCL */
1553 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
1554 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) &&
1555 ((txn->flags & TX_HDR_CONN_CLO) || /* "connection: close" */
1556 (!(msg->flags & HTTP_MSGF_VER_11) && !(txn->flags & TX_HDR_CONN_KAL)) || /* no "connection: k-a" in 1.0 */
1557 !(msg->flags & HTTP_MSGF_XFER_LEN) || /* no length known => close */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1558 fe->state == PR_STSTOPPED)) /* frontend is stopping */
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]1559 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
1560}
William Lallemand82fe75c2012-10-23 10:25:10 +0200[diff] [blame]1561
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1562/* This stream analyser waits for a complete HTTP request. It returns 1 if the
1563 * processing can continue on next analysers, or zero if it either needs more
1564 * data or wants to immediately abort the request (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1565 * 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]1566 * when it has nothing left to do, and may remove any analyser when it wants to
1567 * abort.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1568 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1569int http_wait_for_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1570{
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1571 /*
1572 * We will parse the partial (or complete) lines.
1573 * We will check the request syntax, and also join multi-line
1574 * headers. An index of all the lines will be elaborated while
1575 * parsing.
1576 *
1577 * For the parsing, we use a 28 states FSM.
1578 *
1579 * Here is the information we currently have :
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1580 * req->buf->p = beginning of request
1581 * req->buf->p + msg->eoh = end of processed headers / start of current one
1582 * req->buf->p + req->buf->i = end of input data
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]1583 * msg->eol = end of current header or line (LF or CRLF)
1584 * msg->next = first non-visited byte
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1585 *
1586 * 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]1587 * we will set a few fields (txn->meth, sn->flags/SF_REDIRECTABLE).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1588 * We also check for monitor-uri, logging, HTTP/0.9 to 1.0 conversion, and
1589 * finally headers capture.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1590 */
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1591
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1592 int cur_idx;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1593 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]1594 struct http_txn *txn = s->txn;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1595 struct http_msg *msg = &txn->req;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]1596 struct hdr_ctx ctx;
Willy Tarreau976f1ee2006-12-17 10:06:03 +0100[diff] [blame]1597
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1598 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]1599 now_ms, __FUNCTION__,
1600 s,
1601 req,
1602 req->rex, req->wex,
1603 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1604 req->buf->i,
Willy Tarreau6bf17362009-02-24 10:48:35 +0100[diff] [blame]1605 req->analysers);
1606
Willy Tarreau52a0c602009-08-16 22:45:38 +0200[diff] [blame]1607 /* we're speaking HTTP here, so let's speak HTTP to the client */
1608 s->srv_error = http_return_srv_error;
1609
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]1610 /* There's a protected area at the end of the buffer for rewriting
1611 * purposes. We don't want to start to parse the request if the
1612 * protected area is affected, because we may have to move processed
1613 * data later, which is much more complicated.
1614 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1615 if (buffer_not_empty(req->buf) && msg->msg_state < HTTP_MSG_ERROR) {
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200[diff] [blame]1616
1617 /* This point is executed when some data is avalaible for analysis,
1618 * so we log the end of the idle time. */
1619 if (s->logs.t_idle == -1)
1620 s->logs.t_idle = tv_ms_elapsed(&s->logs.tv_accept, &now) - s->logs.t_handshake;
1621
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]1622 if (txn->flags & TX_NOT_FIRST) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]1623 if (unlikely(!channel_is_rewritable(req))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1624 if (req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]1625 goto failed_keep_alive;
Willy Tarreau2ab6eb12010-01-02 22:04:45 +0100[diff] [blame]1626 /* some data has still not left the buffer, wake us once that's done */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]1627 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1628 req->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]1629 req->flags |= CF_WAKE_WRITE;
Willy Tarreau2ab6eb12010-01-02 22:04:45 +0100[diff] [blame]1630 return 0;
1631 }
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]1632 if (unlikely(bi_end(req->buf) < b_ptr(req->buf, msg->next) ||
1633 bi_end(req->buf) > req->buf->data + req->buf->size - global.tune.maxrewrite))
1634 buffer_slow_realign(req->buf);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]1635 }
1636
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1637 if (likely(msg->next < req->buf->i)) /* some unparsed data are available */
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]1638 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]1639 }
1640
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1641 /* 1: we might have to print this header in debug mode */
1642 if (unlikely((global.mode & MODE_DEBUG) &&
1643 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]1644 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1645 char *eol, *sol;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1646
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1647 sol = req->buf->p;
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]1648 /* this is a bit complex : in case of error on the request line,
1649 * we know that rq.l is still zero, so we display only the part
1650 * up to the end of the line (truncated by debug_hdr).
1651 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1652 eol = sol + (msg->sl.rq.l ? msg->sl.rq.l : req->buf->i);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1653 debug_hdr("clireq", s, sol, eol);
Willy Tarreau45e73e32006-12-17 00:05:15 +0100[diff] [blame]1654
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1655 sol += hdr_idx_first_pos(&txn->hdr_idx);
1656 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1657
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1658 while (cur_idx) {
1659 eol = sol + txn->hdr_idx.v[cur_idx].len;
1660 debug_hdr("clihdr", s, sol, eol);
1661 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
1662 cur_idx = txn->hdr_idx.v[cur_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1663 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1664 }
1665
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1666
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1667 /*
1668 * Now we quickly check if we have found a full valid request.
1669 * If not so, we check the FD and buffer states before leaving.
1670 * A full request is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]1671 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1672 * requests are checked first. When waiting for a second request
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1673 * on a keep-alive stream, if we encounter and error, close, t/o,
1674 * we note the error in the stream flags but don't set any state.
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1675 * Since the error will be noted there, it will not be counted by
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1676 * process_stream() as a frontend error.
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1677 * Last, we may increase some tracked counters' http request errors on
1678 * the cases that are deliberately the client's fault. For instance,
1679 * a timeout or connection reset is not counted as an error. However
1680 * a bad request is.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1681 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1682
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]1683 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1684 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1685 * First, let's catch bad requests.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1686 */
Willy Tarreau3e1b6d12010-03-04 23:02:38 +0100[diff] [blame]1687 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1688 stream_inc_http_req_ctr(s);
1689 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1690 proxy_inc_fe_req_ctr(sess->fe);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1691 goto return_bad_req;
Willy Tarreau3e1b6d12010-03-04 23:02:38 +0100[diff] [blame]1692 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1693
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1694 /* 1: Since we are in header mode, if there's no space
1695 * left for headers, we won't be able to free more
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1696 * later, so the stream will never terminate. We
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1697 * must terminate it now.
1698 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1699 if (unlikely(buffer_full(req->buf, global.tune.maxrewrite))) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1700 /* FIXME: check if URI is set and return Status
1701 * 414 Request URI too long instead.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1702 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1703 stream_inc_http_req_ctr(s);
1704 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1705 proxy_inc_fe_req_ctr(sess->fe);
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]1706 if (msg->err_pos < 0)
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1707 msg->err_pos = req->buf->i;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1708 goto return_bad_req;
1709 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1710
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1711 /* 2: have we encountered a read error ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1712 else if (req->flags & CF_READ_ERROR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1713 if (!(s->flags & SF_ERR_MASK))
1714 s->flags |= SF_ERR_CLICL;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1715
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1716 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1717 goto failed_keep_alive;
1718
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]1719 if (sess->fe->options & PR_O_IGNORE_PRB)
1720 goto failed_keep_alive;
1721
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1722 /* we cannot return any message on error */
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1723 if (msg->err_pos >= 0) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1724 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]1725 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1726 }
1727
Willy Tarreaudc979f22012-12-04 10:39:01 +0100[diff] [blame]1728 txn->status = 400;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1729 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1730 msg->msg_state = HTTP_MSG_ERROR;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]1731 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1732 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1733 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1734 proxy_inc_fe_req_ctr(sess->fe);
1735 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1736 if (sess->listener->counters)
1737 sess->listener->counters->failed_req++;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1738
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1739 if (!(s->flags & SF_FINST_MASK))
1740 s->flags |= SF_FINST_R;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1741 return 0;
1742 }
Willy Tarreauf9839bd2008-08-27 23:57:16 +0200[diff] [blame]1743
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1744 /* 3: has the read timeout expired ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1745 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]1746 if (!(s->flags & SF_ERR_MASK))
1747 s->flags |= SF_ERR_CLITO;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1748
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1749 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1750 goto failed_keep_alive;
1751
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]1752 if (sess->fe->options & PR_O_IGNORE_PRB)
1753 goto failed_keep_alive;
1754
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1755 /* read timeout : give up with an error message. */
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1756 if (msg->err_pos >= 0) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1757 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]1758 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]1759 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1760 txn->status = 408;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1761 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1762 msg->msg_state = HTTP_MSG_ERROR;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1763 http_reply_and_close(s, txn->status, http_error_message(s));
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1764 req->analysers &= AN_REQ_FLT_END;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1765
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1766 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1767 proxy_inc_fe_req_ctr(sess->fe);
1768 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1769 if (sess->listener->counters)
1770 sess->listener->counters->failed_req++;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1771
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1772 if (!(s->flags & SF_FINST_MASK))
1773 s->flags |= SF_FINST_R;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1774 return 0;
1775 }
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]1776
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1777 /* 4: have we encountered a close ? */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1778 else if (req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1779 if (!(s->flags & SF_ERR_MASK))
1780 s->flags |= SF_ERR_CLICL;
Willy Tarreaud3c343f2010-01-16 10:26:19 +0100[diff] [blame]1781
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1782 if (txn->flags & TX_WAIT_NEXT_RQ)
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1783 goto failed_keep_alive;
1784
Willy Tarreau0f228a02015-05-01 15:37:53 +0200[diff] [blame]1785 if (sess->fe->options & PR_O_IGNORE_PRB)
1786 goto failed_keep_alive;
1787
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]1788 if (msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1789 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]1790 txn->status = 400;
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1791 msg->err_state = msg->msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1792 msg->msg_state = HTTP_MSG_ERROR;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1793 http_reply_and_close(s, txn->status, http_error_message(s));
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1794 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1795 stream_inc_http_err_ctr(s);
1796 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1797 proxy_inc_fe_req_ctr(sess->fe);
1798 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]1799 if (sess->listener->counters)
1800 sess->listener->counters->failed_req++;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]1801
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1802 if (!(s->flags & SF_FINST_MASK))
1803 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]1804 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1805 }
1806
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]1807 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]1808 req->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1809 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]1810#ifdef TCP_QUICKACK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]1811 if (sess->listener->options & LI_O_NOQUICKACK && req->buf->i &&
1812 objt_conn(sess->origin) && conn_ctrl_ready(__objt_conn(sess->origin))) {
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]1813 /* We need more data, we have to re-enable quick-ack in case we
1814 * previously disabled it, otherwise we might cause the client
1815 * to delay next data.
1816 */
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]1817 setsockopt(__objt_conn(sess->origin)->handle.fd, IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one));
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]1818 }
1819#endif
Willy Tarreau1b194fe2009-03-21 21:10:04 +0100[diff] [blame]1820
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1821 if ((msg->msg_state != HTTP_MSG_RQBEFORE) && (txn->flags & TX_WAIT_NEXT_RQ)) {
1822 /* If the client starts to talk, let's fall back to
1823 * request timeout processing.
1824 */
1825 txn->flags &= ~TX_WAIT_NEXT_RQ;
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]1826 req->analyse_exp = TICK_ETERNITY;
Willy Tarreaufcffa692010-01-10 14:21:19 +0100[diff] [blame]1827 }
1828
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1829 /* just set the request timeout once at the beginning of the request */
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]1830 if (!tick_isset(req->analyse_exp)) {
1831 if ((msg->msg_state == HTTP_MSG_RQBEFORE) &&
1832 (txn->flags & TX_WAIT_NEXT_RQ) &&
1833 tick_isset(s->be->timeout.httpka))
1834 req->analyse_exp = tick_add(now_ms, s->be->timeout.httpka);
1835 else
1836 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
1837 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1838
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1839 /* we're not ready yet */
1840 return 0;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1841
1842 failed_keep_alive:
1843 /* Here we process low-level errors for keep-alive requests. In
1844 * short, if the request is not the first one and it experiences
1845 * a timeout, read error or shutdown, we just silently close so
1846 * that the client can try again.
1847 */
1848 txn->status = 0;
1849 msg->msg_state = HTTP_MSG_RQBEFORE;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]1850 req->analysers &= AN_REQ_FLT_END;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1851 s->logs.logwait = 0;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]1852 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]1853 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]1854 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]1855 return 0;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1856 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1857
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1858 /* OK now we have a complete HTTP request with indexed headers. Let's
1859 * complete the request parsing by setting a few fields we will need
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1860 * 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]1861 * 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]1862 * points to the CRLF of the request line. msg->next points to the first
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]1863 * byte after the last LF. msg->sov points to the first byte of data.
1864 * msg->eol cannot be trusted because it may have been left uninitialized
1865 * (for instance in the absence of headers).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1866 */
Willy Tarreau9cdde232007-05-02 20:58:19 +0200[diff] [blame]1867
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]1868 stream_inc_http_req_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1869 proxy_inc_fe_req_ctr(sess->fe); /* one more valid request for this FE */
Willy Tarreaud9b587f2010-02-26 10:05:55 +0100[diff] [blame]1870
Willy Tarreaub16a5742010-01-10 14:46:16 +0100[diff] [blame]1871 if (txn->flags & TX_WAIT_NEXT_RQ) {
1872 /* kill the pending keep-alive timeout */
1873 txn->flags &= ~TX_WAIT_NEXT_RQ;
1874 req->analyse_exp = TICK_ETERNITY;
1875 }
1876
1877
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]1878 /* Maybe we found in invalid header name while we were configured not
1879 * to block on that, so we have to capture it now.
1880 */
1881 if (unlikely(msg->err_pos >= 0))
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]1882 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]1883
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1884 /*
1885 * 1: identify the method
1886 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1887 txn->meth = find_http_meth(req->buf->p, msg->sl.rq.m_l);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1888
1889 /* we can make use of server redirect on GET and HEAD */
1890 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1891 s->flags |= SF_REDIRECTABLE;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200[diff] [blame]1892
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1893 /*
1894 * 2: check if the URI matches the monitor_uri.
1895 * We have to do this for every request which gets in, because
1896 * the monitor-uri is defined by the frontend.
1897 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1898 if (unlikely((sess->fe->monitor_uri_len != 0) &&
1899 (sess->fe->monitor_uri_len == msg->sl.rq.u_l) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1900 !memcmp(req->buf->p + msg->sl.rq.u,
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1901 sess->fe->monitor_uri,
1902 sess->fe->monitor_uri_len))) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1903 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1904 * We have found the monitor URI
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]1905 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1906 struct acl_cond *cond;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1907
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1908 s->flags |= SF_MONITOR;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1909 sess->fe->fe_counters.intercepted_req++;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1910
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1911 /* Check if we want to fail this monitor request or not */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]1912 list_for_each_entry(cond, &sess->fe->mon_fail_cond, list) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]1913 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]1914
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1915 ret = acl_pass(ret);
1916 if (cond->pol == ACL_COND_UNLESS)
1917 ret = !ret;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1918
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1919 if (ret) {
1920 /* we fail this request, let's return 503 service unavail */
1921 txn->status = 503;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1922 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1923 if (!(s->flags & SF_ERR_MASK))
1924 s->flags |= SF_ERR_LOCAL; /* we don't want a real error here */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1925 goto return_prx_cond;
Willy Tarreaub80c2302007-11-30 20:51:32 +0100[diff] [blame]1926 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1927 }
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100[diff] [blame]1928
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1929 /* nothing to fail, let's reply normaly */
1930 txn->status = 200;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]1931 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]1932 if (!(s->flags & SF_ERR_MASK))
1933 s->flags |= SF_ERR_LOCAL; /* we don't want a real error here */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1934 goto return_prx_cond;
1935 }
1936
1937 /*
1938 * 3: Maybe we have to copy the original REQURI for the logs ?
1939 * Note: we cannot log anymore if the request has been
1940 * classified as invalid.
1941 */
1942 if (unlikely(s->logs.logwait & LW_REQ)) {
1943 /* we have a complete HTTP request that we must log */
1944 if ((txn->uri = pool_alloc2(pool2_requri)) != NULL) {
1945 int urilen = msg->sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1946
Stéphane Cottin23e9e932017-05-18 08:58:41 +0200[diff] [blame]1947 if (urilen >= global.tune.requri_len )
1948 urilen = global.tune.requri_len - 1;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1949 memcpy(txn->uri, req->buf->p, urilen);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1950 txn->uri[urilen] = 0;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1951
Willy Tarreaud79a3b22012-12-28 09:40:16 +0100[diff] [blame]1952 if (!(s->logs.logwait &= ~(LW_REQ|LW_INIT)))
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1953 s->do_log(s);
1954 } else {
1955 Alert("HTTP logging : out of memory.\n");
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]1956 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]1957 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]1958
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]1959 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
1960 * exactly one digit "." one digit. This check may be disabled using
1961 * option accept-invalid-http-request.
1962 */
1963 if (!(sess->fe->options2 & PR_O2_REQBUG_OK)) {
1964 if (msg->sl.rq.v_l != 8) {
1965 msg->err_pos = msg->sl.rq.v;
1966 goto return_bad_req;
1967 }
1968
1969 if (req->buf->p[msg->sl.rq.v + 4] != '/' ||
1970 !isdigit((unsigned char)req->buf->p[msg->sl.rq.v + 5]) ||
1971 req->buf->p[msg->sl.rq.v + 6] != '.' ||
1972 !isdigit((unsigned char)req->buf->p[msg->sl.rq.v + 7])) {
1973 msg->err_pos = msg->sl.rq.v + 4;
1974 goto return_bad_req;
1975 }
1976 }
Willy Tarreau13317662015-05-01 13:47:08 +0200[diff] [blame]1977 else {
1978 /* 4. We may have to convert HTTP/0.9 requests to HTTP/1.0 */
1979 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
1980 goto return_bad_req;
1981 }
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]1982
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1983 /* ... and check if the request is HTTP/1.1 or above */
1984 if ((msg->sl.rq.v_l == 8) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]1985 ((req->buf->p[msg->sl.rq.v + 5] > '1') ||
1986 ((req->buf->p[msg->sl.rq.v + 5] == '1') &&
1987 (req->buf->p[msg->sl.rq.v + 7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]1988 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]1989
1990 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]1991 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]1992
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]1993 /* if the frontend has "option http-use-proxy-header", we'll check if
1994 * we have what looks like a proxied connection instead of a connection,
1995 * and in this case set the TX_USE_PX_CONN flag to use Proxy-connection.
1996 * Note that this is *not* RFC-compliant, however browsers and proxies
1997 * happen to do that despite being non-standard :-(
1998 * We consider that a request not beginning with either '/' or '*' is
1999 * a proxied connection, which covers both "scheme://location" and
2000 * CONNECT ip:port.
2001 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2002 if ((sess->fe->options2 & PR_O2_USE_PXHDR) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2003 req->buf->p[msg->sl.rq.u] != '/' && req->buf->p[msg->sl.rq.u] != '*')
Willy Tarreau88d349d2010-01-25 12:15:43 +0100[diff] [blame]2004 txn->flags |= TX_USE_PX_CONN;
2005
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2006 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2007 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2008
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]2009 /* 5: we may need to capture headers */
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]2010 if (unlikely((s->logs.logwait & LW_REQHDR) && s->req_cap))
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2011 capture_headers(req->buf->p, &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]2012 s->req_cap, sess->fe->req_cap);
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]2013
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2014 /* 6: determine the transfer-length according to RFC2616 #4.4, updated
2015 * by RFC7230#3.3.3 :
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2016 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2017 * The length of a message body is determined by one of the following
2018 * (in order of precedence):
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2019 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2020 * 1. Any response to a HEAD request and any response with a 1xx
2021 * (Informational), 204 (No Content), or 304 (Not Modified) status
2022 * code is always terminated by the first empty line after the
2023 * header fields, regardless of the header fields present in the
2024 * message, and thus cannot contain a message body.
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2025 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2026 * 2. Any 2xx (Successful) response to a CONNECT request implies that
2027 * the connection will become a tunnel immediately after the empty
2028 * line that concludes the header fields. A client MUST ignore any
2029 * Content-Length or Transfer-Encoding header fields received in
2030 * such a message.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2031 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]2032 * 3. If a Transfer-Encoding header field is present and the chunked
2033 * transfer coding (Section 4.1) is the final encoding, the message
2034 * body length is determined by reading and decoding the chunked
2035 * data until the transfer coding indicates the data is complete.
2036 *
2037 * If a Transfer-Encoding header field is present in a response and
2038 * the chunked transfer coding is not the final encoding, the
2039 * message body length is determined by reading the connection until
2040 * it is closed by the server. If a Transfer-Encoding header field
2041 * is present in a request and the chunked transfer coding is not
2042 * the final encoding, the message body length cannot be determined
2043 * reliably; the server MUST respond with the 400 (Bad Request)
2044 * status code and then close the connection.
2045 *
2046 * If a message is received with both a Transfer-Encoding and a
2047 * Content-Length header field, the Transfer-Encoding overrides the
2048 * Content-Length. Such a message might indicate an attempt to
2049 * perform request smuggling (Section 9.5) or response splitting
2050 * (Section 9.4) and ought to be handled as an error. A sender MUST
2051 * remove the received Content-Length field prior to forwarding such
2052 * a message downstream.
2053 *
2054 * 4. If a message is received without Transfer-Encoding and with
2055 * either multiple Content-Length header fields having differing
2056 * field-values or a single Content-Length header field having an
2057 * invalid value, then the message framing is invalid and the
2058 * recipient MUST treat it as an unrecoverable error. If this is a
2059 * request message, the server MUST respond with a 400 (Bad Request)
2060 * status code and then close the connection. If this is a response
2061 * message received by a proxy, the proxy MUST close the connection
2062 * to the server, discard the received response, and send a 502 (Bad
2063 * Gateway) response to the client. If this is a response message
2064 * received by a user agent, the user agent MUST close the
2065 * connection to the server and discard the received response.
2066 *
2067 * 5. If a valid Content-Length header field is present without
2068 * Transfer-Encoding, its decimal value defines the expected message
2069 * body length in octets. If the sender closes the connection or
2070 * the recipient times out before the indicated number of octets are
2071 * received, the recipient MUST consider the message to be
2072 * incomplete and close the connection.
2073 *
2074 * 6. If this is a request message and none of the above are true, then
2075 * the message body length is zero (no message body is present).
2076 *
2077 * 7. Otherwise, this is a response message without a declared message
2078 * body length, so the message body length is determined by the
2079 * number of octets received prior to the server closing the
2080 * connection.
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2081 */
2082
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2083 ctx.idx = 0;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2084 /* set TE_CHNK and XFER_LEN only if "chunked" is seen last */
Willy Tarreau4979d5c2015-05-01 10:06:30 +0200[diff] [blame]2085 while (http_find_header2("Transfer-Encoding", 17, req->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2086 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]2087 msg->flags |= HTTP_MSGF_TE_CHNK;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2088 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2089 /* chunked not last, return badreq */
2090 goto return_bad_req;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2091 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2092 }
2093
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]2094 /* Chunked requests must have their content-length removed */
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2095 ctx.idx = 0;
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]2096 if (msg->flags & HTTP_MSGF_TE_CHNK) {
2097 while (http_find_header2("Content-Length", 14, req->buf->p, &txn->hdr_idx, &ctx))
2098 http_remove_header2(msg, &txn->hdr_idx, &ctx);
2099 }
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2100 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]2101 signed long long cl;
2102
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2103 if (!ctx.vlen) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2104 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2105 goto return_bad_req;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2106 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2107
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2108 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2109 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2110 goto return_bad_req; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2111 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2112
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2113 if (cl < 0) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2114 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2115 goto return_bad_req;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2116 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2117
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]2118 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]2119 msg->err_pos = ctx.line + ctx.val - req->buf->p;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2120 goto return_bad_req; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]2121 }
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2122
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]2123 msg->flags |= HTTP_MSGF_CNT_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]2124 msg->body_len = msg->chunk_len = cl;
Willy Tarreau32b47f42009-10-18 20:55:02 +0200[diff] [blame]2125 }
2126
Willy Tarreau34dfc602015-05-01 10:09:49 +0200[diff] [blame]2127 /* even bodyless requests have a known length */
2128 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]2129
Willy Tarreau179085c2014-04-28 16:48:56 +0200[diff] [blame]2130 /* Until set to anything else, the connection mode is set as Keep-Alive. It will
2131 * only change if both the request and the config reference something else.
2132 * Option httpclose by itself sets tunnel mode where headers are mangled.
2133 * However, if another mode is set, it will affect it (eg: server-close/
2134 * keep-alive + httpclose = close). Note that we avoid to redo the same work
2135 * if FE and BE have the same settings (common). The method consists in
2136 * checking if options changed between the two calls (implying that either
2137 * one is non-null, or one of them is non-null and we are there for the first
2138 * time.
2139 */
2140 if (!(txn->flags & TX_HDR_CONN_PRS) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2141 ((sess->fe->options & PR_O_HTTP_MODE) != (s->be->options & PR_O_HTTP_MODE)))
Willy Tarreau4e21ff92014-09-30 18:44:22 +0200[diff] [blame]2142 http_adjust_conn_mode(s, txn, msg);
Willy Tarreau179085c2014-04-28 16:48:56 +0200[diff] [blame]2143
Willy Tarreau9fbe18e2015-05-01 22:42:08 +0200[diff] [blame]2144 /* we may have to wait for the request's body */
2145 if ((s->be->options & PR_O_WREQ_BODY) &&
2146 (msg->body_len || (msg->flags & HTTP_MSGF_TE_CHNK)))
2147 req->analysers |= AN_REQ_HTTP_BODY;
2148
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2149 /* end of job, return OK */
Willy Tarreau3a816292009-07-07 10:55:49 +0200[diff] [blame]2150 req->analysers &= ~an_bit;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2151 req->analyse_exp = TICK_ETERNITY;
2152 return 1;
2153
2154 return_bad_req:
2155 /* We centralize bad requests processing here */
2156 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
2157 /* we detected a parsing error. We want to archive this request
2158 * in the dedicated proxy area for later troubleshooting.
2159 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2160 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]2161 }
2162
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]2163 txn->req.err_state = txn->req.msg_state;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2164 txn->req.msg_state = HTTP_MSG_ERROR;
2165 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]2166 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]2167
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]2168 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]2169 if (sess->listener->counters)
2170 sess->listener->counters->failed_req++;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2171
2172 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]2173 if (!(s->flags & SF_ERR_MASK))
2174 s->flags |= SF_ERR_PRXCOND;
2175 if (!(s->flags & SF_FINST_MASK))
2176 s->flags |= SF_FINST_R;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2177
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]2178 req->analysers &= AN_REQ_FLT_END;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]2179 req->analyse_exp = TICK_ETERNITY;
2180 return 0;
2181}
2182
Willy Tarreau4f8a83c2012-06-04 00:26:23 +0200[diff] [blame]2183
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2184/* This function prepares an applet to handle the stats. It can deal with the
2185 * "100-continue" expectation, check that admin rules are met for POST requests,
2186 * and program a response message if something was unexpected. It cannot fail
2187 * 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]2188 * analysers nor counters, which are left to the caller. It does not touch
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2189 * s->target which is supposed to already point to the stats applet. The caller
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2190 * is expected to have already assigned an appctx to the stream.
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2191 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2192int http_handle_stats(struct stream *s, struct channel *req)
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2193{
2194 struct stats_admin_rule *stats_admin_rule;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]2195 struct stream_interface *si = &s->si[1];
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2196 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2197 struct http_txn *txn = s->txn;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2198 struct http_msg *msg = &txn->req;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2199 struct uri_auth *uri_auth = s->be->uri_auth;
2200 const char *uri, *h, *lookup;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2201 struct appctx *appctx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2202
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2203 appctx = si_appctx(si);
2204 memset(&appctx->ctx.stats, 0, sizeof(appctx->ctx.stats));
2205 appctx->st1 = appctx->st2 = 0;
2206 appctx->ctx.stats.st_code = STAT_STATUS_INIT;
2207 appctx->ctx.stats.flags |= STAT_FMT_HTML; /* assume HTML mode by default */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2208 if ((msg->flags & HTTP_MSGF_VER_11) && (s->txn->meth != HTTP_METH_HEAD))
Willy Tarreauaf3cf702014-04-22 22:19:53 +0200[diff] [blame]2209 appctx->ctx.stats.flags |= STAT_CHUNKED;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2210
2211 uri = msg->chn->buf->p + msg->sl.rq.u;
2212 lookup = uri + uri_auth->uri_len;
2213
2214 for (h = lookup; h <= uri + msg->sl.rq.u_l - 3; h++) {
2215 if (memcmp(h, ";up", 3) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2216 appctx->ctx.stats.flags |= STAT_HIDE_DOWN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2217 break;
2218 }
2219 }
2220
2221 if (uri_auth->refresh) {
2222 for (h = lookup; h <= uri + msg->sl.rq.u_l - 10; h++) {
2223 if (memcmp(h, ";norefresh", 10) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2224 appctx->ctx.stats.flags |= STAT_NO_REFRESH;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2225 break;
2226 }
2227 }
2228 }
2229
2230 for (h = lookup; h <= uri + msg->sl.rq.u_l - 4; h++) {
2231 if (memcmp(h, ";csv", 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2232 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2233 break;
2234 }
2235 }
2236
Willy Tarreau1e62df92016-01-11 18:57:53 +0100[diff] [blame]2237 for (h = lookup; h <= uri + msg->sl.rq.u_l - 6; h++) {
2238 if (memcmp(h, ";typed", 6) == 0) {
2239 appctx->ctx.stats.flags &= ~STAT_FMT_HTML;
2240 appctx->ctx.stats.flags |= STAT_FMT_TYPED;
2241 break;
2242 }
2243 }
2244
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2245 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
2246 if (memcmp(h, ";st=", 4) == 0) {
2247 int i;
2248 h += 4;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2249 appctx->ctx.stats.st_code = STAT_STATUS_UNKN;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2250 for (i = STAT_STATUS_INIT + 1; i < STAT_STATUS_SIZE; i++) {
2251 if (strncmp(stat_status_codes[i], h, 4) == 0) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2252 appctx->ctx.stats.st_code = i;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2253 break;
2254 }
2255 }
2256 break;
2257 }
2258 }
2259
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2260 appctx->ctx.stats.scope_str = 0;
2261 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2262 for (h = lookup; h <= uri + msg->sl.rq.u_l - 8; h++) {
2263 if (memcmp(h, STAT_SCOPE_INPUT_NAME "=", strlen(STAT_SCOPE_INPUT_NAME) + 1) == 0) {
2264 int itx = 0;
2265 const char *h2;
2266 char scope_txt[STAT_SCOPE_TXT_MAXLEN + 1];
2267 const char *err;
2268
2269 h += strlen(STAT_SCOPE_INPUT_NAME) + 1;
2270 h2 = h;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2271 appctx->ctx.stats.scope_str = h2 - msg->chn->buf->p;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2272 while (*h != ';' && *h != '\0' && *h != '&' && *h != ' ' && *h != '\n') {
2273 itx++;
2274 h++;
2275 }
2276
2277 if (itx > STAT_SCOPE_TXT_MAXLEN)
2278 itx = STAT_SCOPE_TXT_MAXLEN;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2279 appctx->ctx.stats.scope_len = itx;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2280
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2281 /* 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]2282 memcpy(scope_txt, h2, itx);
2283 scope_txt[itx] = '\0';
2284 err = invalid_char(scope_txt);
2285 if (err) {
2286 /* bad char in search text => clear scope */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2287 appctx->ctx.stats.scope_str = 0;
2288 appctx->ctx.stats.scope_len = 0;
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2289 }
2290 break;
2291 }
2292 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2293
2294 /* now check whether we have some admin rules for this request */
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]2295 list_for_each_entry(stats_admin_rule, &uri_auth->admin_rules, list) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2296 int ret = 1;
2297
2298 if (stats_admin_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2299 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]2300 ret = acl_pass(ret);
2301 if (stats_admin_rule->cond->pol == ACL_COND_UNLESS)
2302 ret = !ret;
2303 }
2304
2305 if (ret) {
2306 /* no rule, or the rule matches */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2307 appctx->ctx.stats.flags |= STAT_ADMIN;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2308 break;
2309 }
2310 }
2311
2312 /* Was the status page requested with a POST ? */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]2313 if (unlikely(txn->meth == HTTP_METH_POST && txn->req.body_len > 0)) {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2314 if (appctx->ctx.stats.flags & STAT_ADMIN) {
Willy Tarreaucfe7fdd2014-04-26 22:08:32 +0200[diff] [blame]2315 /* we'll need the request body, possibly after sending 100-continue */
Willy Tarreaub8cdf522015-05-29 01:09:15 +0200[diff] [blame]2316 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE)
2317 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2318 appctx->st0 = STAT_HTTP_POST;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2319 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2320 else {
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2321 appctx->ctx.stats.st_code = STAT_STATUS_DENY;
2322 appctx->st0 = STAT_HTTP_LAST;
de Lafond Guillaume88c278f2013-04-15 19:27:10 +0200[diff] [blame]2323 }
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2324 }
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]2325 else {
2326 /* So it was another method (GET/HEAD) */
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]2327 appctx->st0 = STAT_HTTP_HEAD;
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2328 }
2329
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2330 s->task->nice = -32; /* small boost for HTTP statistics */
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]2331 return 1;
2332}
2333
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2334/* Sets the TOS header in IPv4 and the traffic class header in IPv6 packets
2335 * (as per RFC3260 #4 and BCP37 #4.2 and #5.2).
2336 */
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2337void inet_set_tos(int fd, const struct sockaddr_storage *from, int tos)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2338{
2339#ifdef IP_TOS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2340 if (from->ss_family == AF_INET)
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2341 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
2342#endif
2343#ifdef IPV6_TCLASS
Vincent Bernat6e615892016-05-18 16:17:44 +0200[diff] [blame]2344 if (from->ss_family == AF_INET6) {
2345 if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)from)->sin6_addr))
Lukas Tribus67db8df2013-06-23 17:37:13 +0200[diff] [blame]2346 /* v4-mapped addresses need IP_TOS */
2347 setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
2348 else
2349 setsockopt(fd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof(tos));
2350 }
2351#endif
2352}
2353
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2354int http_transform_header_str(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2355 const char* name, unsigned int name_len,
2356 const char *str, struct my_regex *re,
2357 int action)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2358{
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2359 struct hdr_ctx ctx;
2360 char *buf = msg->chn->buf->p;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]2361 struct hdr_idx *idx = &s->txn->hdr_idx;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2362 int (*http_find_hdr_func)(const char *name, int len, char *sol,
2363 struct hdr_idx *idx, struct hdr_ctx *ctx);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2364 struct chunk *output = get_trash_chunk();
2365
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2366 ctx.idx = 0;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2367
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2368 /* Choose the header browsing function. */
2369 switch (action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2370 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2371 http_find_hdr_func = http_find_header2;
2372 break;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2373 case ACT_HTTP_REPLACE_HDR:
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2374 http_find_hdr_func = http_find_full_header2;
2375 break;
2376 default: /* impossible */
2377 return -1;
2378 }
2379
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2380 while (http_find_hdr_func(name, name_len, buf, idx, &ctx)) {
2381 struct hdr_idx_elem *hdr = idx->v + ctx.idx;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2382 int delta;
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2383 char *val = ctx.line + ctx.val;
2384 char* val_end = val + ctx.vlen;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2385
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2386 if (!regex_exec_match2(re, val, val_end-val, MAX_MATCH, pmatch, 0))
2387 continue;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2388
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2389 output->len = exp_replace(output->str, output->size, val, str, pmatch);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2390 if (output->len == -1)
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2391 return -1;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2392
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2393 delta = buffer_replace2(msg->chn->buf, val, val_end, output->str, output->len);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2394
2395 hdr->len += delta;
2396 http_msg_move_end(msg, delta);
Thierry FOURNIER191f9ef2015-03-16 23:23:53 +0100[diff] [blame]2397
2398 /* Adjust the length of the current value of the index. */
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2399 ctx.vlen += delta;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2400 }
2401
2402 return 0;
2403}
2404
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2405static int http_transform_header(struct stream* s, struct http_msg *msg,
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2406 const char* name, unsigned int name_len,
2407 struct list *fmt, struct my_regex *re,
2408 int action)
2409{
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2410 struct chunk *replace;
2411 int ret = -1;
2412
2413 replace = alloc_trash_chunk();
2414 if (!replace)
2415 goto leave;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2416
2417 replace->len = build_logline(s, replace->str, replace->size, fmt);
2418 if (replace->len >= replace->size - 1)
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2419 goto leave;
2420
2421 ret = http_transform_header_str(s, msg, name, name_len, replace->str, re, action);
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2422
Christopher Faulet07a0fec2017-02-08 12:17:07 +0100[diff] [blame]2423 leave:
2424 free_trash_chunk(replace);
2425 return ret;
Thierry FOURNIER5531f872015-03-16 11:15:50 +0100[diff] [blame]2426}
2427
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2428/* Executes the http-request rules <rules> for stream <s>, proxy <px> and
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2429 * transaction <txn>. Returns the verdict of the first rule that prevents
2430 * further processing of the request (auth, deny, ...), and defaults to
2431 * HTTP_RULE_RES_STOP if it executed all rules or stopped on an allow, or
2432 * 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]2433 * on txn->flags if it encounters a tarpit rule. If <deny_status> is not NULL
2434 * and a deny/tarpit rule is matched, it will be filled with this rule's deny
2435 * status.
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2436 */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2437enum rule_result
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2438http_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]2439{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2440 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2441 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]2442 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]2443 struct act_rule *rule;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]2444 struct hdr_ctx ctx;
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]2445 const char *auth_realm;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2446 int act_flags = 0;
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2447 int len;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2448
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2449 /* If "the current_rule_list" match the executed rule list, we are in
2450 * resume condition. If a resume is needed it is always in the action
2451 * and never in the ACL or converters. In this case, we initialise the
2452 * current rule, and go to the action execution point.
2453 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2454 if (s->current_rule) {
2455 rule = s->current_rule;
2456 s->current_rule = NULL;
2457 if (s->current_rule_list == rules)
2458 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2459 }
2460 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2461
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2462 list_for_each_entry(rule, rules, list) {
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2463
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2464 /* check optional condition */
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2465 if (rule->cond) {
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2466 int ret;
2467
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2468 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]2469 ret = acl_pass(ret);
2470
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]2471 if (rule->cond->pol == ACL_COND_UNLESS)
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2472 ret = !ret;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2473
2474 if (!ret) /* condition not matched */
2475 continue;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2476 }
2477
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2478 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2479resume_execution:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2480 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2481 case ACT_ACTION_ALLOW:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2482 return HTTP_RULE_RES_STOP;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2483
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2484 case ACT_ACTION_DENY:
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2485 if (deny_status)
2486 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2487 return HTTP_RULE_RES_DENY;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2488
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2489 case ACT_HTTP_REQ_TARPIT:
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]2490 txn->flags |= TX_CLTARPIT;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]2491 if (deny_status)
2492 *deny_status = rule->deny_status;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2493 return HTTP_RULE_RES_DENY;
Willy Tarreauccbcc372012-12-27 12:37:57 +0100[diff] [blame]2494
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2495 case ACT_HTTP_REQ_AUTH:
Willy Tarreauae3c0102014-04-28 23:22:08 +0200[diff] [blame]2496 /* Auth might be performed on regular http-req rules as well as on stats */
2497 auth_realm = rule->arg.auth.realm;
2498 if (!auth_realm) {
2499 if (px->uri_auth && rules == &px->uri_auth->http_req_rules)
2500 auth_realm = STATS_DEFAULT_REALM;
2501 else
2502 auth_realm = px->id;
2503 }
2504 /* send 401/407 depending on whether we use a proxy or not. We still
2505 * count one error, because normal browsing won't significantly
2506 * increase the counter but brute force attempts will.
2507 */
2508 chunk_printf(&trash, (txn->flags & TX_USE_PX_CONN) ? HTTP_407_fmt : HTTP_401_fmt, auth_realm);
2509 txn->status = (txn->flags & TX_USE_PX_CONN) ? 407 : 401;
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]2510 http_reply_and_close(s, txn->status, &trash);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]2511 stream_inc_http_err_ctr(s);
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2512 return HTTP_RULE_RES_ABRT;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2513
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2514 case ACT_HTTP_REDIR:
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2515 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
2516 return HTTP_RULE_RES_BADREQ;
2517 return HTTP_RULE_RES_DONE;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]2518
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2519 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]2520 s->task->nice = rule->arg.nice;
2521 break;
2522
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2523 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2524 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2525 inet_set_tos(cli_conn->handle.fd, &cli_conn->addr.from, rule->arg.tos);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]2526 break;
2527
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2528 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2529#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2530 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2531 setsockopt(cli_conn->handle.fd, SOL_SOCKET, SO_MARK, &rule->arg.mark, sizeof(rule->arg.mark));
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2532#endif
2533 break;
2534
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2535 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]2536 s->logs.level = rule->arg.loglevel;
2537 break;
2538
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2539 case ACT_HTTP_REPLACE_HDR:
2540 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2541 if (http_transform_header(s, &txn->req, rule->arg.hdr_add.name,
2542 rule->arg.hdr_add.name_len,
2543 &rule->arg.hdr_add.fmt,
2544 &rule->arg.hdr_add.re, rule->action))
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2545 return HTTP_RULE_RES_BADREQ;
2546 break;
2547
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2548 case ACT_HTTP_DEL_HDR:
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2549 ctx.idx = 0;
2550 /* remove all occurrences of the header */
2551 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2552 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
2553 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]2554 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2555 break;
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2556
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2557 case ACT_HTTP_SET_HDR:
2558 case ACT_HTTP_ADD_HDR:
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2559 /* The scope of the trash buffer must be limited to this function. The
2560 * build_logline() function can execute a lot of other function which
2561 * can use the trash buffer. So for limiting the scope of this global
2562 * buffer, we build first the header value using build_logline, and
2563 * after we store the header name.
2564 */
2565 len = rule->arg.hdr_add.name_len + 2,
2566 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]2567 memcpy(trash.str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
Thierry Fournier4b788f72016-06-01 13:35:36 +0200[diff] [blame]2568 trash.str[rule->arg.hdr_add.name_len] = ':';
2569 trash.str[rule->arg.hdr_add.name_len + 1] = ' ';
2570 trash.len = len;
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2571
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2572 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2573 /* remove all occurrences of the header */
2574 ctx.idx = 0;
2575 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2576 txn->req.chn->buf->p, &txn->hdr_idx, &ctx)) {
2577 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
2578 }
2579 }
2580
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2581 http_header_add_tail2(&txn->req, &txn->hdr_idx, trash.str, trash.len);
2582 break;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2583
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2584 case ACT_HTTP_DEL_ACL:
2585 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2586 struct pat_ref *ref;
2587 char *key;
2588 int len;
2589
2590 /* collect reference */
2591 ref = pat_ref_lookup(rule->arg.map.ref);
2592 if (!ref)
2593 continue;
2594
2595 /* collect key */
2596 len = build_logline(s, trash.str, trash.size, &rule->arg.map.key);
2597 key = trash.str;
2598 key[len] = '\0';
2599
2600 /* perform update */
2601 /* returned code: 1=ok, 0=ko */
2602 pat_ref_delete(ref, key);
2603
2604 break;
2605 }
2606
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2607 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2608 struct pat_ref *ref;
2609 char *key;
2610 struct chunk *trash_key;
2611 int len;
2612
2613 trash_key = get_trash_chunk();
2614
2615 /* collect reference */
2616 ref = pat_ref_lookup(rule->arg.map.ref);
2617 if (!ref)
2618 continue;
2619
2620 /* collect key */
2621 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
2622 key = trash_key->str;
2623 key[len] = '\0';
2624
2625 /* perform update */
2626 /* add entry only if it does not already exist */
2627 if (pat_ref_find_elt(ref, key) == NULL)
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]2628 pat_ref_add(ref, key, NULL, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2629
2630 break;
2631 }
2632
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2633 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2634 struct pat_ref *ref;
2635 char *key, *value;
2636 struct chunk *trash_key, *trash_value;
2637 int len;
2638
2639 trash_key = get_trash_chunk();
2640 trash_value = get_trash_chunk();
2641
2642 /* collect reference */
2643 ref = pat_ref_lookup(rule->arg.map.ref);
2644 if (!ref)
2645 continue;
2646
2647 /* collect key */
2648 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
2649 key = trash_key->str;
2650 key[len] = '\0';
2651
2652 /* collect value */
2653 len = build_logline(s, trash_value->str, trash_value->size, &rule->arg.map.value);
2654 value = trash_value->str;
2655 value[len] = '\0';
2656
2657 /* perform update */
2658 if (pat_ref_find_elt(ref, key) != NULL)
2659 /* update entry if it exists */
2660 pat_ref_set(ref, key, value, NULL);
2661 else
2662 /* insert a new entry */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]2663 pat_ref_add(ref, key, value, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2664
2665 break;
2666 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]2667
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]2668 case ACT_CUSTOM:
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2669 if ((px->options & PR_O_ABRT_CLOSE) && (s->req.flags & (CF_SHUTR|CF_READ_NULL|CF_READ_ERROR)))
2670 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]2671
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2672 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]2673 case ACT_RET_ERR:
2674 case ACT_RET_CONT:
2675 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]2676 case ACT_RET_STOP:
2677 return HTTP_RULE_RES_DONE;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]2678 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2679 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2680 return HTTP_RULE_RES_YIELD;
2681 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]2682 break;
2683
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2684 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2685 /* Note: only the first valid tracking parameter of each
2686 * applies.
2687 */
2688
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]2689 if (stkctr_entry(&s->stkctr[http_trk_idx(rule->action)]) == NULL) {
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2690 struct stktable *t;
2691 struct stksess *ts;
2692 struct stktable_key *key;
2693 void *ptr;
2694
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]2695 t = rule->arg.trk_ctr.table.t;
2696 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]2697
2698 if (key && (ts = stktable_get_entry(t, key))) {
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]2699 stream_track_stkctr(&s->stkctr[http_trk_idx(rule->action)], t, ts);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2700
2701 /* let's count a new HTTP request as it's the first time we do it */
2702 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
2703 if (ptr)
2704 stktable_data_cast(ptr, http_req_cnt)++;
2705
2706 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
2707 if (ptr)
2708 update_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
2709 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
2710
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]2711 stkctr_set_flags(&s->stkctr[http_trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2712 if (sess->fe != s->be)
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]2713 stkctr_set_flags(&s->stkctr[http_trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]2714 }
2715 }
Adis Nezirovic2fbcafc2015-07-06 15:44:30 +0200[diff] [blame]2716 break;
2717
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]2718 /* other flags exists, but normaly, they never be matched. */
2719 default:
2720 break;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2721 }
2722 }
Willy Tarreau96257ec2012-12-27 10:46:37 +0100[diff] [blame]2723
2724 /* we reached the end of the rules, nothing to report */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]2725 return HTTP_RULE_RES_CONT;
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]2726}
2727
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]2728
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]2729/* Executes the http-response rules <rules> for stream <s> and proxy <px>. It
2730 * returns one of 5 possible statuses: HTTP_RULE_RES_CONT, HTTP_RULE_RES_STOP,
2731 * HTTP_RULE_RES_DONE, HTTP_RULE_RES_YIELD, or HTTP_RULE_RES_BADREQ. If *CONT
2732 * is returned, the process can continue the evaluation of next rule list. If
2733 * *STOP or *DONE is returned, the process must stop the evaluation. If *BADREQ
2734 * is returned, it means the operation could not be processed and a server error
2735 * must be returned. It may set the TX_SVDENY on txn->flags if it encounters a
2736 * deny rule. If *YIELD is returned, the caller must call again the function
2737 * with the same context.
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2738 */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2739static enum rule_result
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2740http_res_get_intercept_rule(struct proxy *px, struct list *rules, struct stream *s)
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2741{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2742 struct session *sess = strm_sess(s);
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]2743 struct http_txn *txn = s->txn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]2744 struct connection *cli_conn;
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]2745 struct act_rule *rule;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2746 struct hdr_ctx ctx;
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2747 int act_flags = 0;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2748
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2749 /* If "the current_rule_list" match the executed rule list, we are in
2750 * resume condition. If a resume is needed it is always in the action
2751 * and never in the ACL or converters. In this case, we initialise the
2752 * current rule, and go to the action execution point.
2753 */
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2754 if (s->current_rule) {
2755 rule = s->current_rule;
2756 s->current_rule = NULL;
2757 if (s->current_rule_list == rules)
2758 goto resume_execution;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2759 }
2760 s->current_rule_list = rules;
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2761
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2762 list_for_each_entry(rule, rules, list) {
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2763
2764 /* check optional condition */
2765 if (rule->cond) {
2766 int ret;
2767
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]2768 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]2769 ret = acl_pass(ret);
2770
2771 if (rule->cond->pol == ACL_COND_UNLESS)
2772 ret = !ret;
2773
2774 if (!ret) /* condition not matched */
2775 continue;
2776 }
2777
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2778 act_flags |= ACT_FLAG_FIRST;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2779resume_execution:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2780 switch (rule->action) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2781 case ACT_ACTION_ALLOW:
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2782 return HTTP_RULE_RES_STOP; /* "allow" rules are OK */
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2783
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2784 case ACT_ACTION_DENY:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2785 txn->flags |= TX_SVDENY;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]2786 return HTTP_RULE_RES_STOP;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2787
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2788 case ACT_HTTP_SET_NICE:
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]2789 s->task->nice = rule->arg.nice;
2790 break;
2791
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2792 case ACT_HTTP_SET_TOS:
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2793 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2794 inet_set_tos(cli_conn->handle.fd, &cli_conn->addr.from, rule->arg.tos);
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]2795 break;
2796
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2797 case ACT_HTTP_SET_MARK:
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2798#ifdef SO_MARK
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]2799 if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]2800 setsockopt(cli_conn->handle.fd, SOL_SOCKET, SO_MARK, &rule->arg.mark, sizeof(rule->arg.mark));
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]2801#endif
2802 break;
2803
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2804 case ACT_HTTP_SET_LOGL:
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]2805 s->logs.level = rule->arg.loglevel;
2806 break;
2807
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2808 case ACT_HTTP_REPLACE_HDR:
2809 case ACT_HTTP_REPLACE_VAL:
Thierry FOURNIER5a33ac72015-03-16 23:54:35 +0100[diff] [blame]2810 if (http_transform_header(s, &txn->rsp, rule->arg.hdr_add.name,
2811 rule->arg.hdr_add.name_len,
2812 &rule->arg.hdr_add.fmt,
2813 &rule->arg.hdr_add.re, rule->action))
Christopher Fauletcdade942017-02-08 12:41:31 +0100[diff] [blame]2814 return HTTP_RULE_RES_BADREQ;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]2815 break;
2816
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2817 case ACT_HTTP_DEL_HDR:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2818 ctx.idx = 0;
2819 /* remove all occurrences of the header */
2820 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2821 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
2822 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
2823 }
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2824 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2825
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2826 case ACT_HTTP_SET_HDR:
2827 case ACT_HTTP_ADD_HDR:
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2828 chunk_printf(&trash, "%s: ", rule->arg.hdr_add.name);
2829 memcpy(trash.str, rule->arg.hdr_add.name, rule->arg.hdr_add.name_len);
2830 trash.len = rule->arg.hdr_add.name_len;
2831 trash.str[trash.len++] = ':';
2832 trash.str[trash.len++] = ' ';
2833 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]2834
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2835 if (rule->action == ACT_HTTP_SET_HDR) {
Willy Tarreau85603282015-01-21 20:39:27 +0100[diff] [blame]2836 /* remove all occurrences of the header */
2837 ctx.idx = 0;
2838 while (http_find_header2(rule->arg.hdr_add.name, rule->arg.hdr_add.name_len,
2839 txn->rsp.chn->buf->p, &txn->hdr_idx, &ctx)) {
2840 http_remove_header2(&txn->rsp, &txn->hdr_idx, &ctx);
2841 }
2842 }
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]2843 http_header_add_tail2(&txn->rsp, &txn->hdr_idx, trash.str, trash.len);
2844 break;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2845
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2846 case ACT_HTTP_DEL_ACL:
2847 case ACT_HTTP_DEL_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2848 struct pat_ref *ref;
2849 char *key;
2850 int len;
2851
2852 /* collect reference */
2853 ref = pat_ref_lookup(rule->arg.map.ref);
2854 if (!ref)
2855 continue;
2856
2857 /* collect key */
2858 len = build_logline(s, trash.str, trash.size, &rule->arg.map.key);
2859 key = trash.str;
2860 key[len] = '\0';
2861
2862 /* perform update */
2863 /* returned code: 1=ok, 0=ko */
2864 pat_ref_delete(ref, key);
2865
2866 break;
2867 }
2868
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2869 case ACT_HTTP_ADD_ACL: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2870 struct pat_ref *ref;
2871 char *key;
2872 struct chunk *trash_key;
2873 int len;
2874
2875 trash_key = get_trash_chunk();
2876
2877 /* collect reference */
2878 ref = pat_ref_lookup(rule->arg.map.ref);
2879 if (!ref)
2880 continue;
2881
2882 /* collect key */
2883 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
2884 key = trash_key->str;
2885 key[len] = '\0';
2886
2887 /* perform update */
2888 /* check if the entry already exists */
2889 if (pat_ref_find_elt(ref, key) == NULL)
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]2890 pat_ref_add(ref, key, NULL, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2891
2892 break;
2893 }
2894
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2895 case ACT_HTTP_SET_MAP: {
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2896 struct pat_ref *ref;
2897 char *key, *value;
2898 struct chunk *trash_key, *trash_value;
2899 int len;
2900
2901 trash_key = get_trash_chunk();
2902 trash_value = get_trash_chunk();
2903
2904 /* collect reference */
2905 ref = pat_ref_lookup(rule->arg.map.ref);
2906 if (!ref)
2907 continue;
2908
2909 /* collect key */
2910 len = build_logline(s, trash_key->str, trash_key->size, &rule->arg.map.key);
2911 key = trash_key->str;
2912 key[len] = '\0';
2913
2914 /* collect value */
2915 len = build_logline(s, trash_value->str, trash_value->size, &rule->arg.map.value);
2916 value = trash_value->str;
2917 value[len] = '\0';
2918
2919 /* perform update */
2920 if (pat_ref_find_elt(ref, key) != NULL)
2921 /* update entry if it exists */
2922 pat_ref_set(ref, key, value, NULL);
2923 else
2924 /* insert a new entry */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]2925 pat_ref_add(ref, key, value, NULL);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]2926
2927 break;
2928 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]2929
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]2930 case ACT_HTTP_REDIR:
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]2931 if (!http_apply_redirect_rule(rule->arg.redir, s, txn))
2932 return HTTP_RULE_RES_BADREQ;
2933 return HTTP_RULE_RES_DONE;
2934
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]2935 case ACT_ACTION_TRK_SC0 ... ACT_ACTION_TRK_SCMAX:
2936 /* Note: only the first valid tracking parameter of each
2937 * applies.
2938 */
2939
2940 if (stkctr_entry(&s->stkctr[http_trk_idx(rule->action)]) == NULL) {
2941 struct stktable *t;
2942 struct stksess *ts;
2943 struct stktable_key *key;
2944 void *ptr;
2945
2946 t = rule->arg.trk_ctr.table.t;
2947 key = stktable_fetch_key(t, s->be, sess, s, SMP_OPT_DIR_RES | SMP_OPT_FINAL, rule->arg.trk_ctr.expr, NULL);
2948
2949 if (key && (ts = stktable_get_entry(t, key))) {
2950 stream_track_stkctr(&s->stkctr[http_trk_idx(rule->action)], t, ts);
2951
2952 /* let's count a new HTTP request as it's the first time we do it */
2953 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_CNT);
2954 if (ptr)
2955 stktable_data_cast(ptr, http_req_cnt)++;
2956
2957 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_REQ_RATE);
2958 if (ptr)
2959 update_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
2960 t->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u, 1);
2961
2962 stkctr_set_flags(&s->stkctr[http_trk_idx(rule->action)], STKCTR_TRACK_CONTENT);
2963 if (sess->fe != s->be)
2964 stkctr_set_flags(&s->stkctr[http_trk_idx(rule->action)], STKCTR_TRACK_BACKEND);
2965
2966 /* When the client triggers a 4xx from the server, it's most often due
2967 * to a missing object or permission. These events should be tracked
2968 * because if they happen often, it may indicate a brute force or a
2969 * vulnerability scan. Normally this is done when receiving the response
2970 * but here we're tracking after this ought to have been done so we have
2971 * to do it on purpose.
2972 */
Willy Tarreau3146a4c2016-07-26 15:22:33 +0200[diff] [blame]2973 if ((unsigned)(txn->status - 400) < 100) {
2974 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_ERR_CNT);
2975 if (ptr)
2976 stktable_data_cast(ptr, http_err_cnt)++;
2977
2978 ptr = stktable_data_ptr(t, ts, STKTABLE_DT_HTTP_ERR_RATE);
2979 if (ptr)
2980 update_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
2981 t->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u, 1);
2982 }
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]2983 }
2984 }
2985 break;
2986
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]2987 case ACT_CUSTOM:
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2988 if ((px->options & PR_O_ABRT_CLOSE) && (s->req.flags & (CF_SHUTR|CF_READ_NULL|CF_READ_ERROR)))
2989 act_flags |= ACT_FLAG_FINAL;
Willy Tarreau39458682015-09-27 10:33:15 +0200[diff] [blame]2990
Willy Tarreauacc98002015-09-27 23:34:39 +0200[diff] [blame]2991 switch (rule->action_ptr(rule, px, s->sess, s, act_flags)) {
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]2992 case ACT_RET_ERR:
2993 case ACT_RET_CONT:
2994 break;
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]2995 case ACT_RET_STOP:
2996 return HTTP_RULE_RES_STOP;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]2997 case ACT_RET_YIELD:
Willy Tarreau152b81e2015-04-20 13:26:17 +0200[diff] [blame]2998 s->current_rule = rule;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]2999 return HTTP_RULE_RES_YIELD;
3000 }
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]3001 break;
3002
Thierry FOURNIER22e49012015-08-05 19:13:48 +0200[diff] [blame]3003 /* other flags exists, but normaly, they never be matched. */
3004 default:
3005 break;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3006 }
3007 }
3008
3009 /* we reached the end of the rules, nothing to report */
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]3010 return HTTP_RULE_RES_CONT;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]3011}
3012
3013
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3014/* Perform an HTTP redirect based on the information in <rule>. The function
3015 * returns non-zero on success, or zero in case of a, irrecoverable error such
3016 * as too large a request to build a valid response.
3017 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3018static 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]3019{
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3020 struct http_msg *req = &txn->req;
3021 struct http_msg *res = &txn->rsp;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3022 const char *msg_fmt;
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3023 struct chunk *chunk;
3024 int ret = 0;
3025
3026 chunk = alloc_trash_chunk();
3027 if (!chunk)
3028 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3029
3030 /* build redirect message */
3031 switch(rule->code) {
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]3032 case 308:
3033 msg_fmt = HTTP_308;
3034 break;
3035 case 307:
3036 msg_fmt = HTTP_307;
3037 break;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3038 case 303:
3039 msg_fmt = HTTP_303;
3040 break;
3041 case 301:
3042 msg_fmt = HTTP_301;
3043 break;
3044 case 302:
3045 default:
3046 msg_fmt = HTTP_302;
3047 break;
3048 }
3049
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3050 if (unlikely(!chunk_strcpy(chunk, msg_fmt)))
3051 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3052
3053 switch(rule->type) {
3054 case REDIRECT_TYPE_SCHEME: {
3055 const char *path;
3056 const char *host;
3057 struct hdr_ctx ctx;
3058 int pathlen;
3059 int hostlen;
3060
3061 host = "";
3062 hostlen = 0;
3063 ctx.idx = 0;
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3064 if (http_find_header2("Host", 4, req->chn->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3065 host = ctx.line + ctx.val;
3066 hostlen = ctx.vlen;
3067 }
3068
3069 path = http_get_path(txn);
3070 /* build message using path */
3071 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3072 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]3073 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3074 int qs = 0;
3075 while (qs < pathlen) {
3076 if (path[qs] == '?') {
3077 pathlen = qs;
3078 break;
3079 }
3080 qs++;
3081 }
3082 }
3083 } else {
3084 path = "/";
3085 pathlen = 1;
3086 }
3087
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3088 if (rule->rdr_str) { /* this is an old "redirect" rule */
3089 /* check if we can add scheme + "://" + host + path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3090 if (chunk->len + rule->rdr_len + 3 + hostlen + pathlen > chunk->size - 4)
3091 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3092
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3093 /* add scheme */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3094 memcpy(chunk->str + chunk->len, rule->rdr_str, rule->rdr_len);
3095 chunk->len += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3096 }
3097 else {
3098 /* add scheme with executing log format */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3099 chunk->len += build_logline(s, chunk->str + chunk->len, chunk->size - chunk->len, &rule->rdr_fmt);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3100
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3101 /* check if we can add scheme + "://" + host + path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3102 if (chunk->len + 3 + hostlen + pathlen > chunk->size - 4)
3103 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3104 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3105 /* add "://" */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3106 memcpy(chunk->str + chunk->len, "://", 3);
3107 chunk->len += 3;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3108
3109 /* add host */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3110 memcpy(chunk->str + chunk->len, host, hostlen);
3111 chunk->len += hostlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3112
3113 /* add path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3114 memcpy(chunk->str + chunk->len, path, pathlen);
3115 chunk->len += pathlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3116
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3117 /* append a slash at the end of the location if needed and missing */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3118 if (chunk->len && chunk->str[chunk->len - 1] != '/' &&
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3119 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3120 if (chunk->len > chunk->size - 5)
3121 goto leave;
3122 chunk->str[chunk->len] = '/';
3123 chunk->len++;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3124 }
3125
3126 break;
3127 }
3128 case REDIRECT_TYPE_PREFIX: {
3129 const char *path;
3130 int pathlen;
3131
3132 path = http_get_path(txn);
3133 /* build message using path */
3134 if (path) {
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3135 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]3136 if (rule->flags & REDIRECT_FLAG_DROP_QS) {
3137 int qs = 0;
3138 while (qs < pathlen) {
3139 if (path[qs] == '?') {
3140 pathlen = qs;
3141 break;
3142 }
3143 qs++;
3144 }
3145 }
3146 } else {
3147 path = "/";
3148 pathlen = 1;
3149 }
3150
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3151 if (rule->rdr_str) { /* this is an old "redirect" rule */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3152 if (chunk->len + rule->rdr_len + pathlen > chunk->size - 4)
3153 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3154
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3155 /* add prefix. Note that if prefix == "/", we don't want to
3156 * add anything, otherwise it makes it hard for the user to
3157 * configure a self-redirection.
3158 */
3159 if (rule->rdr_len != 1 || *rule->rdr_str != '/') {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3160 memcpy(chunk->str + chunk->len, rule->rdr_str, rule->rdr_len);
3161 chunk->len += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3162 }
3163 }
3164 else {
3165 /* add prefix with executing log format */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3166 chunk->len += build_logline(s, chunk->str + chunk->len, chunk->size - chunk->len, &rule->rdr_fmt);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3167
3168 /* Check length */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3169 if (chunk->len + pathlen > chunk->size - 4)
3170 goto leave;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3171 }
3172
3173 /* add path */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3174 memcpy(chunk->str + chunk->len, path, pathlen);
3175 chunk->len += pathlen;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3176
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3177 /* append a slash at the end of the location if needed and missing */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3178 if (chunk->len && chunk->str[chunk->len - 1] != '/' &&
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3179 (rule->flags & REDIRECT_FLAG_APPEND_SLASH)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3180 if (chunk->len > chunk->size - 5)
3181 goto leave;
3182 chunk->str[chunk->len] = '/';
3183 chunk->len++;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3184 }
3185
3186 break;
3187 }
3188 case REDIRECT_TYPE_LOCATION:
3189 default:
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3190 if (rule->rdr_str) { /* this is an old "redirect" rule */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3191 if (chunk->len + rule->rdr_len > chunk->size - 4)
3192 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3193
3194 /* add location */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3195 memcpy(chunk->str + chunk->len, rule->rdr_str, rule->rdr_len);
3196 chunk->len += rule->rdr_len;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3197 }
3198 else {
3199 /* add location with executing log format */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3200 chunk->len += build_logline(s, chunk->str + chunk->len, chunk->size - chunk->len, &rule->rdr_fmt);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3201
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3202 /* Check left length */
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3203 if (chunk->len > chunk->size - 4)
3204 goto leave;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]3205 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3206 break;
3207 }
3208
3209 if (rule->cookie_len) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3210 memcpy(chunk->str + chunk->len, "\r\nSet-Cookie: ", 14);
3211 chunk->len += 14;
3212 memcpy(chunk->str + chunk->len, rule->cookie_str, rule->cookie_len);
3213 chunk->len += rule->cookie_len;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3214 }
3215
Willy Tarreau19b14122017-02-28 09:48:11 +0100[diff] [blame]3216 /* add end of headers and the keep-alive/close status. */
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3217 txn->status = rule->code;
3218 /* let's log the request time */
3219 s->logs.tv_request = now;
3220
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3221 if (((!(req->flags & HTTP_MSGF_TE_CHNK) && !req->body_len) || (req->msg_state == HTTP_MSG_DONE)) &&
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3222 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
3223 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
3224 /* keep-alive possible */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3225 if (!(req->flags & HTTP_MSGF_VER_11)) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3226 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3227 memcpy(chunk->str + chunk->len, "\r\nProxy-Connection: keep-alive", 30);
3228 chunk->len += 30;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3229 } else {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3230 memcpy(chunk->str + chunk->len, "\r\nConnection: keep-alive", 24);
3231 chunk->len += 24;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3232 }
3233 }
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3234 memcpy(chunk->str + chunk->len, "\r\n\r\n", 4);
3235 chunk->len += 4;
3236 FLT_STRM_CB(s, flt_http_reply(s, txn->status, chunk));
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]3237 co_inject(res->chn, chunk->str, chunk->len);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3238 /* "eat" the request */
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3239 bi_fast_delete(req->chn->buf, req->sov);
3240 req->next -= req->sov;
3241 req->sov = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3242 s->req.analysers = AN_REQ_HTTP_XFER_BODY | (s->req.analysers & AN_REQ_FLT_END);
Christopher Faulet014e39c2017-03-10 13:52:30 +0100[diff] [blame]3243 s->res.analysers = AN_RES_HTTP_XFER_BODY | (s->res.analysers & AN_RES_FLT_END);
Willy Tarreaub329a312015-05-22 16:27:37 +0200[diff] [blame]3244 req->msg_state = HTTP_MSG_CLOSED;
3245 res->msg_state = HTTP_MSG_DONE;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]3246 /* Trim any possible response */
3247 res->chn->buf->i = 0;
3248 res->next = res->sov = 0;
Christopher Faulet5d468ca2017-09-11 09:27:29 +0200[diff] [blame]3249 /* let the server side turn to SI_ST_CLO */
3250 channel_shutw_now(req->chn);
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3251 } else {
3252 /* keep-alive not possible */
3253 if (unlikely(txn->flags & TX_USE_PX_CONN)) {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3254 memcpy(chunk->str + chunk->len, "\r\nProxy-Connection: close\r\n\r\n", 29);
3255 chunk->len += 29;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3256 } else {
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3257 memcpy(chunk->str + chunk->len, "\r\nConnection: close\r\n\r\n", 23);
3258 chunk->len += 23;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3259 }
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3260 http_reply_and_close(s, txn->status, chunk);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3261 req->chn->analysers &= AN_REQ_FLT_END;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3262 }
3263
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3264 if (!(s->flags & SF_ERR_MASK))
3265 s->flags |= SF_ERR_LOCAL;
3266 if (!(s->flags & SF_FINST_MASK))
3267 s->flags |= SF_FINST_R;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3268
Thierry FOURNIER0d945762017-01-28 07:39:53 +0100[diff] [blame]3269 ret = 1;
3270 leave:
3271 free_trash_chunk(chunk);
3272 return ret;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3273}
3274
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3275/* This stream analyser runs all HTTP request processing which is common to
3276 * frontends and backends, which means blocking ACLs, filters, connection-close,
3277 * reqadd, stats and redirects. This is performed for the designated proxy.
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3278 * 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]3279 * either needs more data or wants to immediately abort the request (eg: deny,
3280 * error, ...).
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3281 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3282int 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]3283{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3284 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3285 struct http_txn *txn = s->txn;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3286 struct http_msg *msg = &txn->req;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3287 struct redirect_rule *rule;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100[diff] [blame]3288 struct cond_wordlist *wl;
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3289 enum rule_result verdict;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3290 int deny_status = HTTP_ERR_403;
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3291
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]3292 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3293 /* we need more data */
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3294 goto return_prx_yield;
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3295 }
3296
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3297 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]3298 now_ms, __FUNCTION__,
3299 s,
3300 req,
3301 req->rex, req->wex,
3302 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3303 req->buf->i,
Willy Tarreaud787e662009-07-07 10:14:51 +0200[diff] [blame]3304 req->analysers);
3305
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]3306 /* just in case we have some per-backend tracking */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3307 stream_inc_be_http_req_ctr(s);
Willy Tarreau65410832014-04-28 21:25:43 +0200[diff] [blame]3308
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3309 /* evaluate http-request rules */
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3310 if (!LIST_ISEMPTY(&px->http_req_rules)) {
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3311 verdict = http_req_get_intercept_rule(px, &px->http_req_rules, s, &deny_status);
Willy Tarreau51425942010-02-01 10:40:19 +0100[diff] [blame]3312
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3313 switch (verdict) {
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3314 case HTTP_RULE_RES_YIELD: /* some data miss, call the function later. */
3315 goto return_prx_yield;
3316
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3317 case HTTP_RULE_RES_CONT:
3318 case HTTP_RULE_RES_STOP: /* nothing to do */
3319 break;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3320
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3321 case HTTP_RULE_RES_DENY: /* deny or tarpit */
3322 if (txn->flags & TX_CLTARPIT)
3323 goto tarpit;
3324 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3325
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3326 case HTTP_RULE_RES_ABRT: /* abort request, response already sent. Eg: auth */
3327 goto return_prx_cond;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3328
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3329 case HTTP_RULE_RES_DONE: /* OK, but terminate request processing (eg: redirect) */
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3330 goto done;
3331
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3332 case HTTP_RULE_RES_BADREQ: /* failed with a bad request */
3333 goto return_bad_req;
3334 }
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3335 }
3336
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3337 /* OK at this stage, we know that the request was accepted according to
3338 * the http-request rules, we can check for the stats. Note that the
3339 * URI is detected *before* the req* rules in order not to be affected
3340 * by a possible reqrep, while they are processed *after* so that a
3341 * reqdeny can still block them. This clearly needs to change in 1.6!
3342 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]3343 if (stats_check_uri(&s->si[1], txn, px)) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3344 s->target = &http_stats_applet.obj_type;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]3345 if (unlikely(!stream_int_register_handler(&s->si[1], objt_applet(s->target)))) {
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3346 txn->status = 500;
3347 s->logs.tv_request = now;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3348 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau7b4b4992013-12-01 09:15:12 +0100[diff] [blame]3349
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3350 if (!(s->flags & SF_ERR_MASK))
3351 s->flags |= SF_ERR_RESOURCE;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3352 goto return_prx_cond;
3353 }
3354
3355 /* parse the whole stats request and extract the relevant information */
3356 http_handle_stats(s, req);
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3357 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]3358 /* not all actions implemented: deny, allow, auth */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3359
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3360 if (verdict == HTTP_RULE_RES_DENY) /* stats http-request deny */
3361 goto deny;
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3362
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3363 if (verdict == HTTP_RULE_RES_ABRT) /* stats auth / stats http-request auth */
3364 goto return_prx_cond;
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +0100[diff] [blame]3365 }
3366
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3367 /* evaluate the req* rules except reqadd */
3368 if (px->req_exp != NULL) {
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]3369 if (apply_filters_to_request(s, req, px) < 0)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3370 goto return_bad_req;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3371
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3372 if (txn->flags & TX_CLDENY)
3373 goto deny;
Willy Tarreauc465fd72009-08-31 00:17:18 +0200[diff] [blame]3374
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3375 if (txn->flags & TX_CLTARPIT) {
3376 deny_status = HTTP_ERR_500;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3377 goto tarpit;
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3378 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3379 }
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3380
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3381 /* add request headers from the rule sets in the same order */
3382 list_for_each_entry(wl, &px->req_add, list) {
3383 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3384 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]3385 ret = acl_pass(ret);
3386 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
3387 ret = !ret;
3388 if (!ret)
3389 continue;
3390 }
3391
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]3392 if (unlikely(http_header_add_tail(&txn->req, &txn->hdr_idx, wl->s) < 0))
Willy Tarreauf68a15a2011-01-06 16:53:21 +0100[diff] [blame]3393 goto return_bad_req;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]3394 }
3395
Willy Tarreau52542592014-04-28 18:33:26 +0200[diff] [blame]3396
3397 /* Proceed with the stats now. */
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]3398 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
Willy Tarreau1facd6d2012-12-22 22:03:39 +0100[diff] [blame]3399 /* process the stats request now */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3400 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
3401 sess->fe->fe_counters.intercepted_req++;
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3402
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3403 if (!(s->flags & SF_ERR_MASK)) // this is not really an error but it is
3404 s->flags |= SF_ERR_LOCAL; // to mark that it comes from the proxy
3405 if (!(s->flags & SF_FINST_MASK))
3406 s->flags |= SF_FINST_R;
Willy Tarreau347a35d2013-11-22 17:51:09 +0100[diff] [blame]3407
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]3408 /* 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]3409 req->analysers &= (AN_REQ_HTTP_BODY | AN_REQ_FLT_HTTP_HDRS | AN_REQ_FLT_END);
3410 req->analysers &= ~AN_REQ_FLT_XFER_DATA;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]3411 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3412 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3413 }
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]3414
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3415 /* check whether we have some ACLs set to redirect this request */
3416 list_for_each_entry(rule, &px->redirect_rules, list) {
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]3417 if (rule->cond) {
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3418 int ret;
3419
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]3420 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]3421 ret = acl_pass(ret);
3422 if (rule->cond->pol == ACL_COND_UNLESS)
3423 ret = !ret;
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3424 if (!ret)
3425 continue;
Willy Tarreauf285f542010-01-03 20:03:03 +0100[diff] [blame]3426 }
Willy Tarreau71241ab2012-12-27 11:30:54 +0100[diff] [blame]3427 if (!http_apply_redirect_rule(rule, s, txn))
3428 goto return_bad_req;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3429 goto done;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3430 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]3431
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]3432 /* POST requests may be accompanied with an "Expect: 100-Continue" header.
3433 * If this happens, then the data will not come immediately, so we must
3434 * send all what we have without waiting. Note that due to the small gain
3435 * 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]3436 * 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]3437 * itself once used.
3438 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]3439 req->flags |= CF_SEND_DONTWAIT;
Willy Tarreau2be39392010-01-03 17:24:51 +0100[diff] [blame]3440
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3441 done: /* done with this analyser, continue with next ones that the calling
3442 * points will have set, if any.
3443 */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3444 req->analyse_exp = TICK_ETERNITY;
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]3445 done_without_exp: /* done with this analyser, but dont reset the analyse_exp. */
3446 req->analysers &= ~an_bit;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3447 return 1;
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]3448
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3449 tarpit:
Willy Tarreau6a0bca92017-06-11 17:56:27 +0200[diff] [blame]3450 /* Allow cookie logging
3451 */
3452 if (s->be->cookie_name || sess->fe->capture_name)
3453 manage_client_side_cookies(s, req);
3454
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3455 /* When a connection is tarpitted, we use the tarpit timeout,
3456 * which may be the same as the connect timeout if unspecified.
3457 * If unset, then set it to zero because we really want it to
3458 * eventually expire. We build the tarpit as an analyser.
3459 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]3460 channel_erase(&s->req);
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3461
3462 /* wipe the request out so that we can drop the connection early
3463 * if the client closes first.
3464 */
3465 channel_dont_connect(req);
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3466
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]3467 txn->status = http_err_codes[deny_status];
3468
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3469 req->analysers &= AN_REQ_FLT_END; /* remove switching rules etc... */
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3470 req->analysers |= AN_REQ_HTTP_TARPIT;
3471 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.tarpit);
3472 if (!req->analyse_exp)
3473 req->analyse_exp = tick_add(now_ms, 0);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3474 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3475 sess->fe->fe_counters.denied_req++;
3476 if (sess->fe != s->be)
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3477 s->be->be_counters.denied_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3478 if (sess->listener->counters)
3479 sess->listener->counters->denied_req++;
Thierry FOURNIER7566e302014-08-22 06:55:26 +0200[diff] [blame]3480 goto done_without_exp;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3481
3482 deny: /* this request was blocked (denied) */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3483
3484 /* Allow cookie logging
3485 */
3486 if (s->be->cookie_name || sess->fe->capture_name)
3487 manage_client_side_cookies(s, req);
3488
Willy Tarreau0b748332014-04-29 00:13:29 +0200[diff] [blame]3489 txn->flags |= TX_CLDENY;
Willy Tarreau58727ec2016-05-25 16:23:59 +0200[diff] [blame]3490 txn->status = http_err_codes[deny_status];
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3491 s->logs.tv_request = now;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3492 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3493 stream_inc_http_err_ctr(s);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3494 sess->fe->fe_counters.denied_req++;
3495 if (sess->fe != s->be)
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3496 s->be->be_counters.denied_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3497 if (sess->listener->counters)
3498 sess->listener->counters->denied_req++;
Willy Tarreaubbba2a82014-04-28 13:57:26 +0200[diff] [blame]3499 goto return_prx_cond;
3500
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3501 return_bad_req:
3502 /* We centralize bad requests processing here */
3503 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
3504 /* we detected a parsing error. We want to archive this request
3505 * in the dedicated proxy area for later troubleshooting.
3506 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3507 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]3508 }
Willy Tarreau55ea7572007-06-17 19:56:27 +0200[diff] [blame]3509
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3510 txn->req.err_state = txn->req.msg_state;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3511 txn->req.msg_state = HTTP_MSG_ERROR;
3512 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3513 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]3514
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3515 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3516 if (sess->listener->counters)
3517 sess->listener->counters->failed_req++;
Willy Tarreau6e4261e2007-09-18 18:36:05 +0200[diff] [blame]3518
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3519 return_prx_cond:
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3520 if (!(s->flags & SF_ERR_MASK))
3521 s->flags |= SF_ERR_PRXCOND;
3522 if (!(s->flags & SF_FINST_MASK))
3523 s->flags |= SF_FINST_R;
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100[diff] [blame]3524
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3525 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3526 req->analyse_exp = TICK_ETERNITY;
3527 return 0;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]3528
3529 return_prx_yield:
3530 channel_dont_connect(req);
3531 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3532}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3533
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3534/* This function performs all the processing enabled for the current request.
3535 * It returns 1 if the processing can continue on next analysers, or zero if it
3536 * needs more data, encounters an error, or wants to immediately abort the
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]3537 * request. It relies on buffers flags, and updates s->req.analysers.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3538 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3539int http_process_request(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3540{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3541 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3542 struct http_txn *txn = s->txn;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3543 struct http_msg *msg = &txn->req;
Willy Tarreauee335e62015-04-21 18:15:13 +0200[diff] [blame]3544 struct connection *cli_conn = objt_conn(strm_sess(s)->origin);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3545
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]3546 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3547 /* we need more data */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]3548 channel_dont_connect(req);
Willy Tarreau51aecc72009-07-12 09:47:04 +0200[diff] [blame]3549 return 0;
3550 }
3551
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3552 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]3553 now_ms, __FUNCTION__,
3554 s,
3555 req,
3556 req->rex, req->wex,
3557 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]3558 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200[diff] [blame]3559 req->analysers);
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3560
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3561 /*
3562 * Right now, we know that we have processed the entire headers
3563 * and that unwanted requests have been filtered out. We can do
3564 * whatever we want with the remaining request. Also, now we
3565 * may have separate values for ->fe, ->be.
3566 */
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3567
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3568 /*
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3569 * If HTTP PROXY is set we simply get remote server address parsing
3570 * incoming request. Note that this requires that a connection is
3571 * allocated on the server side.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3572 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3573 if ((s->be->options & PR_O_HTTP_PROXY) && !(s->flags & SF_ADDR_SET)) {
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3574 struct connection *conn;
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3575 char *path;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3576
Willy Tarreau9471b8c2013-12-15 13:31:35 +0100[diff] [blame]3577 /* Note that for now we don't reuse existing proxy connections */
Willy Tarreau973a5422015-08-05 21:47:23 +0200[diff] [blame]3578 if (unlikely((conn = si_alloc_conn(&s->si[1])) == NULL)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3579 txn->req.err_state = txn->req.msg_state;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3580 txn->req.msg_state = HTTP_MSG_ERROR;
3581 txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3582 req->analysers &= AN_REQ_FLT_END;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3583 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3584
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3585 if (!(s->flags & SF_ERR_MASK))
3586 s->flags |= SF_ERR_RESOURCE;
3587 if (!(s->flags & SF_FINST_MASK))
3588 s->flags |= SF_FINST_R;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200[diff] [blame]3589
3590 return 0;
3591 }
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3592
3593 path = http_get_path(txn);
3594 url2sa(req->buf->p + msg->sl.rq.u,
3595 path ? path - (req->buf->p + msg->sl.rq.u) : msg->sl.rq.u_l,
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]3596 &conn->addr.to, NULL);
Willy Tarreaue8df1e12013-12-16 14:30:55 +0100[diff] [blame]3597 /* if the path was found, we have to remove everything between
3598 * req->buf->p + msg->sl.rq.u and path (excluded). If it was not
3599 * found, we need to replace from req->buf->p + msg->sl.rq.u for
3600 * u_l characters by a single "/".
3601 */
3602 if (path) {
3603 char *cur_ptr = req->buf->p;
3604 char *cur_end = cur_ptr + txn->req.sl.rq.l;
3605 int delta;
3606
3607 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u, path, NULL, 0);
3608 http_msg_move_end(&txn->req, delta);
3609 cur_end += delta;
3610 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
3611 goto return_bad_req;
3612 }
3613 else {
3614 char *cur_ptr = req->buf->p;
3615 char *cur_end = cur_ptr + txn->req.sl.rq.l;
3616 int delta;
3617
3618 delta = buffer_replace2(req->buf, req->buf->p + msg->sl.rq.u,
3619 req->buf->p + msg->sl.rq.u + msg->sl.rq.u_l, "/", 1);
3620 http_msg_move_end(&txn->req, delta);
3621 cur_end += delta;
3622 if (http_parse_reqline(&txn->req, HTTP_MSG_RQMETH, cur_ptr, cur_end + 1, NULL, NULL) == NULL)
3623 goto return_bad_req;
3624 }
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3625 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]3626
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3627 /*
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]3628 * 7: Now we can work with the cookies.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3629 * Note that doing so might move headers in the request, but
3630 * the fields will stay coherent and the URI will not move.
3631 * This should only be performed in the backend.
3632 */
Bertrand Paquet83a2c3d2016-04-06 11:58:31 +0200[diff] [blame]3633 if (s->be->cookie_name || sess->fe->capture_name)
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3634 manage_client_side_cookies(s, req);
Willy Tarreau7ac51f62007-03-25 16:00:04 +0200[diff] [blame]3635
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3636 /* add unique-id if "header-unique-id" is specified */
3637
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]3638 if (!LIST_ISEMPTY(&sess->fe->format_unique_id) && !s->unique_id) {
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]3639 if ((s->unique_id = pool_alloc2(pool2_uniqueid)) == NULL)
3640 goto return_bad_req;
3641 s->unique_id[0] = '\0';
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3642 build_logline(s, s->unique_id, UNIQUEID_LEN, &sess->fe->format_unique_id);
William Lallemand5b7ea3a2013-08-28 15:44:19 +0200[diff] [blame]3643 }
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3644
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3645 if (sess->fe->header_unique_id && s->unique_id) {
3646 chunk_printf(&trash, "%s: %s", sess->fe->header_unique_id, s->unique_id);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3647 if (trash.len < 0)
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]3648 goto return_bad_req;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3649 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]3650 goto return_bad_req;
3651 }
3652
Cyril Bontéb21570a2009-11-29 20:04:48 +0100[diff] [blame]3653 /*
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3654 * 9: add X-Forwarded-For if either the frontend or the backend
3655 * asks for it.
3656 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3657 if ((sess->fe->options | s->be->options) & PR_O_FWDFOR) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]3658 struct hdr_ctx ctx = { .idx = 0 };
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3659 if (!((sess->fe->options | s->be->options) & PR_O_FF_ALWAYS) &&
3660 http_find_header2(s->be->fwdfor_hdr_len ? s->be->fwdfor_hdr_name : sess->fe->fwdfor_hdr_name,
3661 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]3662 req->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreau87cf5142011-08-19 22:57:24 +0200[diff] [blame]3663 /* The header is set to be added only if none is present
3664 * and we found it, so don't do anything.
3665 */
3666 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3667 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3668 /* Add an X-Forwarded-For header unless the source IP is
3669 * in the 'except' network range.
3670 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3671 if ((!sess->fe->except_mask.s_addr ||
3672 (((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr.s_addr & sess->fe->except_mask.s_addr)
3673 != sess->fe->except_net.s_addr) &&
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3674 (!s->be->except_mask.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3675 (((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]3676 != s->be->except_net.s_addr)) {
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]3677 int len;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3678 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3679 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr;
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]3680
3681 /* Note: we rely on the backend to get the header name to be used for
3682 * x-forwarded-for, because the header is really meant for the backends.
3683 * However, if the backend did not specify any option, we have to rely
3684 * on the frontend's header name.
3685 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3686 if (s->be->fwdfor_hdr_len) {
3687 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3688 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Ross Westaf72a1d2008-08-03 10:51:45 +0200[diff] [blame]3689 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3690 len = sess->fe->fwdfor_hdr_len;
3691 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]3692 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]3693 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]3694
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3695 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]3696 goto return_bad_req;
Willy Tarreau2a324282006-12-05 00:05:46 +0100[diff] [blame]3697 }
3698 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3699 else if (cli_conn && cli_conn->addr.from.ss_family == AF_INET6) {
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3700 /* FIXME: for the sake of completeness, we should also support
3701 * 'except' here, although it is mostly useless in this case.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3702 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3703 int len;
3704 char pn[INET6_ADDRSTRLEN];
3705 inet_ntop(AF_INET6,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3706 (const void *)&((struct sockaddr_in6 *)(&cli_conn->addr.from))->sin6_addr,
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3707 pn, sizeof(pn));
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3708
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3709 /* Note: we rely on the backend to get the header name to be used for
3710 * x-forwarded-for, because the header is really meant for the backends.
3711 * However, if the backend did not specify any option, we have to rely
3712 * on the frontend's header name.
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3713 */
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3714 if (s->be->fwdfor_hdr_len) {
3715 len = s->be->fwdfor_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3716 memcpy(trash.str, s->be->fwdfor_hdr_name, len);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3717 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3718 len = sess->fe->fwdfor_hdr_len;
3719 memcpy(trash.str, sess->fe->fwdfor_hdr_name, len);
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200[diff] [blame]3720 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]3721 len += snprintf(trash.str + len, trash.size - len, ": %s", pn);
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3722
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3723 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]3724 goto return_bad_req;
3725 }
3726 }
3727
3728 /*
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3729 * 10: add X-Original-To if either the frontend or the backend
3730 * asks for it.
3731 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3732 if ((sess->fe->options | s->be->options) & PR_O_ORGTO) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3733
3734 /* FIXME: don't know if IPv6 can handle that case too. */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3735 if (cli_conn && cli_conn->addr.from.ss_family == AF_INET) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3736 /* Add an X-Original-To header unless the destination IP is
3737 * in the 'except' network range.
3738 */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3739 conn_get_to_addr(cli_conn);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3740
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3741 if (cli_conn->addr.to.ss_family == AF_INET &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3742 ((!sess->fe->except_mask_to.s_addr ||
3743 (((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr.s_addr & sess->fe->except_mask_to.s_addr)
3744 != sess->fe->except_to.s_addr) &&
Emeric Brun5bd86a82010-10-22 17:23:04 +0200[diff] [blame]3745 (!s->be->except_mask_to.s_addr ||
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3746 (((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]3747 != s->be->except_to.s_addr))) {
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3748 int len;
3749 unsigned char *pn;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]3750 pn = (unsigned char *)&((struct sockaddr_in *)&cli_conn->addr.to)->sin_addr;
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3751
3752 /* Note: we rely on the backend to get the header name to be used for
3753 * x-original-to, because the header is really meant for the backends.
3754 * However, if the backend did not specify any option, we have to rely
3755 * on the frontend's header name.
3756 */
3757 if (s->be->orgto_hdr_len) {
3758 len = s->be->orgto_hdr_len;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3759 memcpy(trash.str, s->be->orgto_hdr_name, len);
Maik Broemme2850cb42009-04-17 18:53:21 +0200[diff] [blame]3760 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3761 len = sess->fe->orgto_hdr_len;
3762 memcpy(trash.str, sess->fe->orgto_hdr_name, len);
Willy Tarreaub86db342009-11-30 11:50:16 +0100[diff] [blame]3763 }
Willy Tarreaue9187f82014-04-14 15:27:14 +0200[diff] [blame]3764 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]3765
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]3766 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]3767 goto return_bad_req;
3768 }
3769 }
3770 }
3771
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]3772 /* 11: add "Connection: close" or "Connection: keep-alive" if needed and not yet set.
3773 * If an "Upgrade" token is found, the header is left untouched in order not to have
3774 * to deal with some servers bugs : some of them fail an Upgrade if anything but
3775 * "Upgrade" is present in the Connection header.
3776 */
3777 if (!(txn->flags & TX_HDR_CONN_UPG) &&
3778 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3779 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3780 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3781 unsigned int want_flags = 0;
3782
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3783 if (msg->flags & HTTP_MSGF_VER_11) {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]3784 if (((txn->flags & TX_CON_WANT_MSK) >= TX_CON_WANT_SCL ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3785 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3786 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL)) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3787 !((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3788 want_flags |= TX_CON_CLO_SET;
3789 } else {
Willy Tarreau22a95342010-09-29 14:31:41 +0200[diff] [blame]3790 if (((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3791 ((sess->fe->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL &&
Willy Tarreau02bce8b2014-01-30 00:15:28 +0100[diff] [blame]3792 (s->be->options & PR_O_HTTP_MODE) != PR_O_HTTP_PCL)) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3793 ((sess->fe->options2|s->be->options2) & PR_O2_FAKE_KA))
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3794 want_flags |= TX_CON_KAL_SET;
3795 }
3796
3797 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]3798 http_change_connection_header(txn, msg, want_flags);
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3799 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3800
Willy Tarreaubbf0b372010-01-18 16:54:40 +0100[diff] [blame]3801
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3802 /* If we have no server assigned yet and we're balancing on url_param
3803 * with a POST request, we may be interested in checking the body for
3804 * that parameter. This will be done in another analyser.
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3805 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3806 if (!(s->flags & (SF_ASSIGNED|SF_DIRECT)) &&
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3807 s->txn->meth == HTTP_METH_POST && s->be->url_param_name != NULL &&
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3808 (msg->flags & (HTTP_MSGF_CNT_LEN|HTTP_MSGF_TE_CHNK))) {
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]3809 channel_dont_connect(req);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3810 req->analysers |= AN_REQ_HTTP_BODY;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3811 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]3812
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3813 req->analysers &= ~AN_REQ_FLT_XFER_DATA;
3814 req->analysers |= AN_REQ_HTTP_XFER_BODY;
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]3815#ifdef TCP_QUICKACK
Christopher Fauletbe821b92017-03-30 11:21:53 +0200[diff] [blame]3816 /* We expect some data from the client. Unless we know for sure
3817 * we already have a full request, we have to re-enable quick-ack
3818 * in case we previously disabled it, otherwise we might cause
3819 * the client to delay further data.
3820 */
3821 if ((sess->listener->options & LI_O_NOQUICKACK) &&
3822 cli_conn && conn_ctrl_ready(cli_conn) &&
3823 ((msg->flags & HTTP_MSGF_TE_CHNK) ||
3824 (msg->body_len > req->buf->i - txn->req.eoh - 2)))
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]3825 setsockopt(cli_conn->handle.fd, IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one));
Willy Tarreau5e205522011-12-17 16:34:27 +0100[diff] [blame]3826#endif
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]3827
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3828 /*************************************************************
3829 * OK, that's finished for the headers. We have done what we *
3830 * could. Let's switch to the DATA state. *
3831 ************************************************************/
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3832 req->analyse_exp = TICK_ETERNITY;
3833 req->analysers &= ~an_bit;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]3834
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3835 s->logs.tv_request = now;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3836 /* OK let's go on with the BODY now */
3837 return 1;
Willy Tarreau06619262006-12-17 08:37:22 +0100[diff] [blame]3838
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3839 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]3840 if (unlikely(msg->msg_state == HTTP_MSG_ERROR) || msg->err_pos >= 0) {
Willy Tarreauf073a832009-03-01 23:21:47 +0100[diff] [blame]3841 /* we detected a parsing error. We want to archive this request
3842 * in the dedicated proxy area for later troubleshooting.
3843 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3844 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]3845 }
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]3846
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]3847 txn->req.err_state = txn->req.msg_state;
Willy Tarreau59234e92008-11-30 23:51:27 +0100[diff] [blame]3848 txn->req.msg_state = HTTP_MSG_ERROR;
3849 txn->status = 400;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3850 req->analysers &= AN_REQ_FLT_END;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3851 http_reply_and_close(s, txn->status, http_error_message(s));
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]3852
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]3853 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3854 if (sess->listener->counters)
3855 sess->listener->counters->failed_req++;
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3856
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3857 if (!(s->flags & SF_ERR_MASK))
3858 s->flags |= SF_ERR_PRXCOND;
3859 if (!(s->flags & SF_FINST_MASK))
3860 s->flags |= SF_FINST_R;
Willy Tarreaudafde432008-08-17 01:00:46 +0200[diff] [blame]3861 return 0;
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]3862}
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]3863
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3864/* This function is an analyser which processes the HTTP tarpit. It always
3865 * returns zero, at the beginning because it prevents any other processing
3866 * from occurring, and at the end because it terminates the request.
3867 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3868int http_process_tarpit(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3869{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3870 struct http_txn *txn = s->txn;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3871
3872 /* This connection is being tarpitted. The CLIENT side has
3873 * already set the connect expiration date to the right
3874 * timeout. We just have to check that the client is still
3875 * there and that the timeout has not expired.
3876 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]3877 channel_dont_connect(req);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]3878 if ((req->flags & (CF_SHUTR|CF_READ_ERROR)) == 0 &&
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3879 !tick_is_expired(req->analyse_exp, now_ms))
3880 return 0;
3881
3882 /* We will set the queue timer to the time spent, just for
3883 * logging purposes. We fake a 500 server error, so that the
3884 * attacker will not suspect his connection has been tarpitted.
3885 * It will not cause trouble to the logs because we can exclude
3886 * the tarpitted connections by filtering on the 'PT' status flags.
3887 */
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3888 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
3889
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]3890 if (!(req->flags & CF_READ_ERROR))
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]3891 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3892
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]3893 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3894 req->analyse_exp = TICK_ETERNITY;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]3895
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]3896 if (!(s->flags & SF_ERR_MASK))
3897 s->flags |= SF_ERR_PRXCOND;
3898 if (!(s->flags & SF_FINST_MASK))
3899 s->flags |= SF_FINST_T;
Willy Tarreau60b85b02008-11-30 23:28:40 +0100[diff] [blame]3900 return 0;
3901}
3902
Willy Tarreau5a8f9472014-04-10 11:16:06 +0200[diff] [blame]3903/* This function is an analyser which waits for the HTTP request body. It waits
3904 * for either the buffer to be full, or the full advertised contents to have
3905 * reached the buffer. It must only be called after the standard HTTP request
3906 * processing has occurred, because it expects the request to be parsed and will
3907 * look for the Expect header. It may send a 100-Continue interim response. It
3908 * takes in input any state starting from HTTP_MSG_BODY and leaves with one of
3909 * HTTP_MSG_CHK_SIZE, HTTP_MSG_DATA or HTTP_MSG_TRAILERS. It returns zero if it
3910 * needs to read more data, or 1 once it has completed its analysis.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]3911 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3912int http_wait_for_request_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]3913{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]3914 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]3915 struct http_txn *txn = s->txn;
3916 struct http_msg *msg = &s->txn->req;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]3917
3918 /* We have to parse the HTTP request body to find any required data.
3919 * "balance url_param check_post" should have been the only way to get
3920 * into this. We were brought here after HTTP header analysis, so all
3921 * related structures are ready.
3922 */
3923
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]3924 if (msg->msg_state < HTTP_MSG_CHUNK_SIZE) {
3925 /* This is the first call */
3926 if (msg->msg_state < HTTP_MSG_BODY)
3927 goto missing_data;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3928
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]3929 if (msg->msg_state < HTTP_MSG_100_SENT) {
3930 /* If we have HTTP/1.1 and Expect: 100-continue, then we must
3931 * send an HTTP/1.1 100 Continue intermediate response.
3932 */
3933 if (msg->flags & HTTP_MSGF_VER_11) {
3934 struct hdr_ctx ctx;
3935 ctx.idx = 0;
3936 /* Expect is allowed in 1.1, look for it */
3937 if (http_find_header2("Expect", 6, req->buf->p, &txn->hdr_idx, &ctx) &&
3938 unlikely(ctx.vlen == 12 && strncasecmp(ctx.line+ctx.val, "100-continue", 12) == 0)) {
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]3939 co_inject(&s->res, http_100_chunk.str, http_100_chunk.len);
Thierry FOURNIER / OZON.IO43ad11d2016-12-12 15:19:58 +0100[diff] [blame]3940 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]3941 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3942 }
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]3943 msg->msg_state = HTTP_MSG_100_SENT;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3944 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3945
Willy Tarreaufa4a03c2012-03-09 21:28:54 +0100[diff] [blame]3946 /* we have msg->sov which points to the first byte of message body.
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]3947 * req->buf->p still points to the beginning of the message. We
3948 * must save the body in msg->next because it survives buffer
3949 * re-alignments.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]3950 */
Willy Tarreauea1175a2012-03-05 15:52:30 +0100[diff] [blame]3951 msg->next = msg->sov;
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]3952
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]3953 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3954 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
3955 else
3956 msg->msg_state = HTTP_MSG_DATA;
3957 }
3958
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]3959 if (!(msg->flags & HTTP_MSGF_TE_CHNK)) {
3960 /* We're in content-length mode, we just have to wait for enough data. */
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]3961 if (http_body_bytes(msg) < msg->body_len)
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]3962 goto missing_data;
3963
3964 /* OK we have everything we need now */
3965 goto http_end;
3966 }
3967
3968 /* OK here we're parsing a chunked-encoded message */
3969
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3970 if (msg->msg_state == HTTP_MSG_CHUNK_SIZE) {
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]3971 /* read the chunk size and assign it to ->chunk_len, then
Willy Tarreaua458b672012-03-05 11:17:50 +0100[diff] [blame]3972 * set ->sov and ->next to point to the body and switch to DATA or
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]3973 * TRAILERS state.
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]3974 */
Willy Tarreau4baf44b2012-03-09 14:10:20 +0100[diff] [blame]3975 int ret = http_parse_chunk_size(msg);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]3976
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]3977 if (!ret)
3978 goto missing_data;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]3979 else if (ret < 0) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]3980 stream_inc_http_err_ctr(s);
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3981 goto return_bad_req;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]3982 }
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]3983 msg->next += ret;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]3984 msg->msg_state = msg->chunk_len ? HTTP_MSG_DATA : HTTP_MSG_TRAILERS;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]3985 }
3986
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]3987 /* Now we're in HTTP_MSG_DATA or HTTP_MSG_TRAILERS state.
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]3988 * We have the first data byte is in msg->sov + msg->sol. We're waiting
3989 * for at least a whole chunk or the whole content length bytes after
3990 * msg->sov + msg->sol.
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]3991 */
Willy Tarreau890988f2014-04-10 11:59:33 +0200[diff] [blame]3992 if (msg->msg_state == HTTP_MSG_TRAILERS)
3993 goto http_end;
3994
Willy Tarreaue115b492015-05-01 23:05:14 +0200[diff] [blame]3995 if (http_body_bytes(msg) >= msg->body_len) /* we have enough bytes now */
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]3996 goto http_end;
3997
3998 missing_data:
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]3999 /* we get here if we need to wait for more data. If the buffer is full,
4000 * we have the maximum we can expect.
4001 */
4002 if (buffer_full(req->buf, global.tune.maxrewrite))
4003 goto http_end;
Willy Tarreau115acb92009-12-26 13:56:06 +0100[diff] [blame]4004
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4005 if ((req->flags & CF_READ_TIMEOUT) || tick_is_expired(req->analyse_exp, now_ms)) {
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4006 txn->status = 408;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4007 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4008
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4009 if (!(s->flags & SF_ERR_MASK))
4010 s->flags |= SF_ERR_CLITO;
4011 if (!(s->flags & SF_FINST_MASK))
4012 s->flags |= SF_FINST_D;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4013 goto return_err_msg;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4014 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4015
4016 /* we get here if we need to wait for more data */
Willy Tarreau31a19952014-04-10 11:50:37 +0200[diff] [blame]4017 if (!(req->flags & (CF_SHUTR | CF_READ_ERROR))) {
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4018 /* Not enough data. We'll re-use the http-request
4019 * timeout here. Ideally, we should set the timeout
4020 * relative to the accept() date. We just set the
4021 * request timeout once at the beginning of the
4022 * request.
4023 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4024 channel_dont_connect(req);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4025 if (!tick_isset(req->analyse_exp))
Willy Tarreaucd7afc02009-07-12 10:03:17 +0200[diff] [blame]4026 req->analyse_exp = tick_add_ifset(now_ms, s->be->timeout.httpreq);
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4027 return 0;
4028 }
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4029
4030 http_end:
4031 /* The situation will not evolve, so let's give up on the analysis. */
4032 s->logs.tv_request = now; /* update the request timer to reflect full request */
4033 req->analysers &= ~an_bit;
4034 req->analyse_exp = TICK_ETERNITY;
4035 return 1;
4036
4037 return_bad_req: /* let's centralize all bad requests */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4038 txn->req.err_state = txn->req.msg_state;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4039 txn->req.msg_state = HTTP_MSG_ERROR;
4040 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4041 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4042
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4043 if (!(s->flags & SF_ERR_MASK))
4044 s->flags |= SF_ERR_PRXCOND;
4045 if (!(s->flags & SF_FINST_MASK))
4046 s->flags |= SF_FINST_R;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4047
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4048 return_err_msg:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4049 req->analysers &= AN_REQ_FLT_END;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4050 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4051 if (sess->listener->counters)
4052 sess->listener->counters->failed_req++;
Willy Tarreau522d6c02009-12-06 18:49:18 +0100[diff] [blame]4053 return 0;
Willy Tarreaud34af782008-11-30 23:36:37 +0100[diff] [blame]4054}
4055
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4056/* send a server's name with an outgoing request over an established connection.
4057 * Note: this function is designed to be called once the request has been scheduled
4058 * for being forwarded. This is the reason why it rewinds the buffer before
4059 * proceeding.
4060 */
Willy Tarreau45c0d982012-03-09 12:11:57 +0100[diff] [blame]4061int 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]4062
4063 struct hdr_ctx ctx;
4064
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4065 char *hdr_name = be->server_id_hdr_name;
4066 int hdr_name_len = be->server_id_hdr_len;
Willy Tarreau394db372012-10-12 22:40:39 +0200[diff] [blame]4067 struct channel *chn = txn->req.chn;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4068 char *hdr_val;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4069 unsigned int old_o, old_i;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4070
William Lallemandd9e90662012-01-30 17:27:17 +0100[diff] [blame]4071 ctx.idx = 0;
4072
Willy Tarreau211cdec2014-04-17 20:18:08 +0200[diff] [blame]4073 old_o = http_hdr_rewind(&txn->req);
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4074 if (old_o) {
4075 /* The request was already skipped, let's restore it */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4076 b_rew(chn->buf, old_o);
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4077 txn->req.next += old_o;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4078 txn->req.sov += old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4079 }
4080
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4081 old_i = chn->buf->i;
4082 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]4083 /* remove any existing values from the header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]4084 http_remove_header2(&txn->req, &txn->hdr_idx, &ctx);
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4085 }
4086
4087 /* Add the new header requested with the server value */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4088 hdr_val = trash.str;
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4089 memcpy(hdr_val, hdr_name, hdr_name_len);
4090 hdr_val += hdr_name_len;
4091 *hdr_val++ = ':';
4092 *hdr_val++ = ' ';
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]4093 hdr_val += strlcpy2(hdr_val, srv_name, trash.str + trash.size - hdr_val);
4094 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]4095
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4096 if (old_o) {
4097 /* If this was a forwarded request, we must readjust the amount of
4098 * data to be forwarded in order to take into account the size
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4099 * variations. Note that the current state is >= HTTP_MSG_BODY,
4100 * so we don't have to adjust ->sol.
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4101 */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]4102 old_o += chn->buf->i - old_i;
4103 b_adv(chn->buf, old_o);
4104 txn->req.next -= old_o;
4105 txn->req.sov -= old_o;
Willy Tarreaud1de8af2012-05-18 22:12:14 +0200[diff] [blame]4106 }
4107
Mark Lamourinec2247f02012-01-04 13:02:01 -0500[diff] [blame]4108 return 0;
4109}
4110
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4111/* Terminate current transaction and prepare a new one. This is very tricky
4112 * right now but it works.
4113 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4114void http_end_txn_clean_session(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4115{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4116 int prev_status = s->txn->status;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]4117 struct proxy *fe = strm_fe(s);
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4118 struct proxy *be = s->be;
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4119 struct connection *srv_conn;
4120 struct server *srv;
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4121 unsigned int prev_flags = s->txn->flags;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4122
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4123 /* FIXME: We need a more portable way of releasing a backend's and a
4124 * server's connections. We need a safer way to reinitialize buffer
4125 * flags. We also need a more accurate method for computing per-request
4126 * data.
4127 */
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4128 srv_conn = objt_conn(s->si[1].end);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4129
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4130 /* unless we're doing keep-alive, we want to quickly close the connection
4131 * to the server.
4132 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4133 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4134 !si_conn_ready(&s->si[1])) {
4135 s->si[1].flags |= SI_FL_NOLINGER | SI_FL_NOHALF;
4136 si_shutr(&s->si[1]);
4137 si_shutw(&s->si[1]);
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4138 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4139
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4140 if (s->flags & SF_BE_ASSIGNED) {
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4141 be->beconn--;
Willy Tarreau2d5cd472012-03-01 23:34:37 +0100[diff] [blame]4142 if (unlikely(s->srv_conn))
4143 sess_change_server(s, NULL);
4144 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4145
4146 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4147 stream_process_counters(s);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4148
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4149 if (s->txn->status) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4150 int n;
4151
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4152 n = s->txn->status / 100;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4153 if (n < 1 || n > 5)
4154 n = 0;
4155
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4156 if (fe->mode == PR_MODE_HTTP) {
4157 fe->fe_counters.p.http.rsp[n]++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4158 }
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4159 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4160 (be->mode == PR_MODE_HTTP)) {
4161 be->be_counters.p.http.rsp[n]++;
4162 be->be_counters.p.http.cum_req++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +0100[diff] [blame]4163 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4164 }
4165
4166 /* don't count other requests' data */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4167 s->logs.bytes_in -= s->req.buf->i;
4168 s->logs.bytes_out -= s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4169
4170 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4171 if (!LIST_ISEMPTY(&fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4172 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4173 (!(fe->options & PR_O_NULLNOLOG) || s->req.total)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4174 s->do_log(s);
4175 }
4176
Willy Tarreaud713bcc2014-06-25 15:36:04 +0200[diff] [blame]4177 /* stop tracking content-based counters */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4178 stream_stop_content_counters(s);
4179 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +0200[diff] [blame]4180
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4181 s->logs.accept_date = date; /* user-visible date for logging */
4182 s->logs.tv_accept = now; /* corrected date for internal use */
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200[diff] [blame]4183 s->logs.t_handshake = 0; /* There are no handshake in keep alive connection. */
4184 s->logs.t_idle = -1;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4185 tv_zero(&s->logs.tv_request);
4186 s->logs.t_queue = -1;
4187 s->logs.t_connect = -1;
4188 s->logs.t_data = -1;
4189 s->logs.t_close = 0;
4190 s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */
4191 s->logs.srv_queue_size = 0; /* we will get this number soon */
4192
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4193 s->logs.bytes_in = s->req.total = s->req.buf->i;
4194 s->logs.bytes_out = s->res.total = s->res.buf->i;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4195
4196 if (s->pend_pos)
4197 pendconn_free(s->pend_pos);
4198
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4199 if (objt_server(s->target)) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4200 if (s->flags & SF_CURR_SESS) {
4201 s->flags &= ~SF_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4202 objt_server(s->target)->cur_sess--;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4203 }
Willy Tarreau858b1032015-12-07 17:04:59 +0100[diff] [blame]4204 if (may_dequeue_tasks(objt_server(s->target), be))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4205 process_srv_queue(objt_server(s->target));
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4206 }
4207
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4208 s->target = NULL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4209
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4210 /* only release our endpoint if we don't intend to reuse the
4211 * connection.
4212 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4213 if (((s->txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) ||
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4214 !si_conn_ready(&s->si[1])) {
4215 si_release_endpoint(&s->si[1]);
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4216 srv_conn = NULL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4217 }
4218
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4219 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
4220 s->si[1].err_type = SI_ET_NONE;
4221 s->si[1].conn_retries = 0; /* used for logging too */
4222 s->si[1].exp = TICK_ETERNITY;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4223 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]4224 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);
4225 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]4226 s->flags &= ~(SF_DIRECT|SF_ASSIGNED|SF_ADDR_SET|SF_BE_ASSIGNED|SF_FORCE_PRST|SF_IGNORE_PRST);
4227 s->flags &= ~(SF_CURR_SESS|SF_REDIRECTABLE|SF_SRV_REUSED);
4228 s->flags &= ~(SF_ERR_MASK|SF_FINST_MASK|SF_REDISP);
Willy Tarreau543db622012-11-15 16:41:22 +0100[diff] [blame]4229
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4230 s->txn->meth = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4231 http_reset_txn(s);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4232 s->txn->flags |= TX_NOT_FIRST | TX_WAIT_NEXT_RQ;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4233
4234 if (prev_status == 401 || prev_status == 407) {
4235 /* In HTTP keep-alive mode, if we receive a 401, we still have
4236 * a chance of being able to send the visitor again to the same
4237 * server over the same connection. This is required by some
4238 * broken protocols such as NTLM, and anyway whenever there is
4239 * an opportunity for sending the challenge to the proper place,
4240 * it's better to do it (at least it helps with debugging).
4241 */
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4242 s->txn->flags |= TX_PREFER_LAST;
Willy Tarreaubd99d582015-09-02 10:40:43 +0200[diff] [blame]4243 if (srv_conn)
4244 srv_conn->flags |= CO_FL_PRIVATE;
Willy Tarreau068621e2013-12-23 15:11:25 +0100[diff] [blame]4245 }
4246
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4247 /* Never ever allow to reuse a connection from a non-reuse backend */
4248 if (srv_conn && (be->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
4249 srv_conn->flags |= CO_FL_PRIVATE;
4250
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4251 if (fe->options2 & PR_O2_INDEPSTR)
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4252 s->si[1].flags |= SI_FL_INDEP_STR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4253
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4254 if (fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4255 s->req.flags |= CF_NEVER_WAIT;
4256 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200[diff] [blame]4257 }
4258
Willy Tarreau714ea782015-11-25 20:11:11 +0100[diff] [blame]4259 /* we're removing the analysers, we MUST re-enable events detection.
4260 * We don't enable close on the response channel since it's either
4261 * already closed, or in keep-alive with an idle connection handler.
4262 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4263 channel_auto_read(&s->req);
4264 channel_auto_close(&s->req);
4265 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4266
Willy Tarreau1c59bd52015-11-02 20:20:11 +0100[diff] [blame]4267 /* we're in keep-alive with an idle connection, monitor it if not already done */
4268 if (srv_conn && LIST_ISEMPTY(&srv_conn->list)) {
Willy Tarreau323a2d92015-08-04 19:00:17 +0200[diff] [blame]4269 srv = objt_server(srv_conn->target);
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4270 if (!srv)
4271 si_idle_conn(&s->si[1], NULL);
Willy Tarreau53f96852016-02-02 18:50:47 +0100[diff] [blame]4272 else if (srv_conn->flags & CO_FL_PRIVATE)
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4273 si_idle_conn(&s->si[1], &srv->priv_conns);
Willy Tarreau449d74a2015-08-05 17:16:33 +0200[diff] [blame]4274 else if (prev_flags & TX_NOT_FIRST)
4275 /* note: we check the request, not the connection, but
4276 * this is valid for strategies SAFE and AGGR, and in
4277 * case of ALWS, we don't care anyway.
4278 */
4279 si_idle_conn(&s->si[1], &srv->safe_conns);
Willy Tarreau8dff9982015-08-04 20:45:52 +0200[diff] [blame]4280 else
4281 si_idle_conn(&s->si[1], &srv->idle_conns);
Willy Tarreau4320eaa2015-08-05 11:08:30 +0200[diff] [blame]4282 }
Christopher Faulete6006242017-03-10 11:52:44 +0100[diff] [blame]4283 s->req.analysers = strm_li(s) ? strm_li(s)->analysers : 0;
4284 s->res.analysers = 0;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4285}
4286
4287
4288/* This function updates the request state machine according to the response
4289 * state machine and buffer flags. It returns 1 if it changes anything (flag
4290 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4291 * it is only used to find when a request/response couple is complete. Both
4292 * this function and its equivalent should loop until both return zero. It
4293 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4294 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4295int http_sync_req_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4296{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4297 struct channel *chn = &s->req;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4298 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4299 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4300 unsigned int old_state = txn->req.msg_state;
4301
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4302 if (unlikely(txn->req.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4303 return 0;
4304
4305 if (txn->req.msg_state == HTTP_MSG_DONE) {
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4306 /* No need to read anymore, the request was completely parsed.
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4307 * We can shut the read side unless we want to abort_on_close,
4308 * or we have a POST request. The issue with POST requests is
4309 * that some browsers still send a CRLF after the request, and
4310 * this CRLF must be read so that it does not remain in the kernel
4311 * buffers, otherwise a close could cause an RST on some systems
4312 * (eg: Linux).
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4313 * Note that if we're using keep-alive on the client side, we'd
4314 * rather poll now and keep the polling enabled for the whole
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4315 * stream's life than enabling/disabling it between each
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4316 * response and next request.
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4317 */
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4318 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4319 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
4320 !(s->be->options & PR_O_ABRT_CLOSE) &&
4321 txn->meth != HTTP_METH_POST)
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4322 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4323
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4324 /* if the server closes the connection, we want to immediately react
4325 * and close the socket to save packets and syscalls.
4326 */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]4327 s->si[1].flags |= SI_FL_NOHALF;
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4328
Willy Tarreau7f876a12015-11-18 11:59:55 +0100[diff] [blame]4329 /* In any case we've finished parsing the request so we must
4330 * disable Nagle when sending data because 1) we're not going
4331 * to shut this side, and 2) the server is waiting for us to
4332 * send pending data.
4333 */
4334 chn->flags |= CF_NEVER_WAIT;
4335
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4336 if (txn->rsp.msg_state == HTTP_MSG_ERROR)
4337 goto wait_other_side;
4338
4339 if (txn->rsp.msg_state < HTTP_MSG_DONE) {
4340 /* The server has not finished to respond, so we
4341 * don't want to move in order not to upset it.
4342 */
4343 goto wait_other_side;
4344 }
4345
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4346 /* When we get here, it means that both the request and the
4347 * response have finished receiving. Depending on the connection
4348 * mode, we'll have to wait for the last bytes to leave in either
4349 * direction, and sometimes for a close to be effective.
4350 */
4351
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4352 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4353 /* Server-close mode : queue a connection close to the server */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4354 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW)))
4355 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4356 }
4357 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4358 /* Option forceclose is set, or either side wants to close,
4359 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4360 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4361 * once both states are CLOSED.
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4362 *
4363 * However, there is an exception if the response
4364 * length is undefined. In this case, we need to wait
4365 * the close from the server. The response will be
4366 * switched in TUNNEL mode until the end.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4367 */
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4368 if (!(txn->rsp.flags & HTTP_MSGF_XFER_LEN) &&
4369 txn->rsp.msg_state != HTTP_MSG_CLOSED)
4370 goto check_channel_flags;
4371
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4372 if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
4373 channel_shutr_now(chn);
4374 channel_shutw_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4375 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4376 }
4377 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4378 /* The last possible modes are keep-alive and tunnel. Tunnel mode
4379 * will not have any analyser so it needs to poll for reads.
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4380 */
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4381 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN) {
4382 channel_auto_read(chn);
4383 txn->req.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4384 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4385 }
4386
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4387 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4388 }
4389
4390 if (txn->req.msg_state == HTTP_MSG_CLOSING) {
4391 http_msg_closing:
4392 /* nothing else to forward, just waiting for the output buffer
4393 * to be empty and for the shutw_now to take effect.
4394 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4395 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4396 txn->req.msg_state = HTTP_MSG_CLOSED;
4397 goto http_msg_closed;
4398 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4399 else if (chn->flags & CF_SHUTW) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4400 txn->req.err_state = txn->req.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4401 txn->req.msg_state = HTTP_MSG_ERROR;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4402 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4403 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4404 }
4405
4406 if (txn->req.msg_state == HTTP_MSG_CLOSED) {
4407 http_msg_closed:
Willy Tarreau3988d932013-12-27 23:03:08 +0100[diff] [blame]4408 /* see above in MSG_DONE why we only do this in these states */
4409 if (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_SCL) &&
4410 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_KAL) &&
4411 !(s->be->options & PR_O_ABRT_CLOSE))
Willy Tarreau2e7a1652013-12-15 15:32:10 +0100[diff] [blame]4412 channel_dont_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4413 goto wait_other_side;
4414 }
4415
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4416 check_channel_flags:
4417 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4418 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4419 /* if we've just closed an output, let's switch */
4420 s->si[1].flags |= SI_FL_NOLINGER; /* we want to close ASAP */
4421 txn->req.msg_state = HTTP_MSG_CLOSING;
4422 goto http_msg_closing;
4423 }
4424
4425
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4426 wait_other_side:
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4427 return txn->req.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4428}
4429
4430
4431/* This function updates the response state machine according to the request
4432 * state machine and buffer flags. It returns 1 if it changes anything (flag
4433 * or state), otherwise zero. It ignores any state before HTTP_MSG_DONE, as
4434 * it is only used to find when a request/response couple is complete. Both
4435 * this function and its equivalent should loop until both return zero. It
4436 * can set its own state to DONE, CLOSING, CLOSED, TUNNEL, ERROR.
4437 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4438int http_sync_res_state(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4439{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4440 struct channel *chn = &s->res;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4441 struct http_txn *txn = s->txn;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4442 unsigned int old_flags = chn->flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4443 unsigned int old_state = txn->rsp.msg_state;
4444
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4445 if (unlikely(txn->rsp.msg_state < HTTP_MSG_DONE))
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4446 return 0;
4447
4448 if (txn->rsp.msg_state == HTTP_MSG_DONE) {
4449 /* In theory, we don't need to read anymore, but we must
Willy Tarreau90deb182010-01-07 00:20:41 +0100[diff] [blame]4450 * still monitor the server connection for a possible close
4451 * while the request is being uploaded, so we don't disable
4452 * reading.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4453 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4454 /* channel_dont_read(chn); */
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4455
4456 if (txn->req.msg_state == HTTP_MSG_ERROR)
4457 goto wait_other_side;
4458
4459 if (txn->req.msg_state < HTTP_MSG_DONE) {
4460 /* The client seems to still be sending data, probably
4461 * because we got an error response during an upload.
4462 * We have the choice of either breaking the connection
4463 * or letting it pass through. Let's do the later.
4464 */
4465 goto wait_other_side;
4466 }
4467
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4468 /* When we get here, it means that both the request and the
4469 * response have finished receiving. Depending on the connection
4470 * mode, we'll have to wait for the last bytes to leave in either
4471 * direction, and sometimes for a close to be effective.
4472 */
4473
4474 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
4475 /* Server-close mode : shut read and wait for the request
4476 * side to close its output buffer. The caller will detect
4477 * when we're in DONE and the other is in CLOSED and will
4478 * catch that for the final cleanup.
4479 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4480 if (!(chn->flags & (CF_SHUTR|CF_SHUTR_NOW)))
4481 channel_shutr_now(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4482 }
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4483 else if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
4484 /* Option forceclose is set, or either side wants to close,
4485 * let's enforce it now that we're not expecting any new
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4486 * data to come. The caller knows the stream is complete
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4487 * once both states are CLOSED.
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4488 *
4489 * However, there is an exception if the response length
4490 * is undefined. In this case, we switch in TUNNEL mode.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4491 */
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]4492 if (!(txn->rsp.flags & HTTP_MSGF_XFER_LEN)) {
4493 channel_auto_read(chn);
4494 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
4495 chn->flags |= CF_NEVER_WAIT;
4496 }
4497 else if (!(chn->flags & (CF_SHUTW|CF_SHUTW_NOW))) {
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4498 channel_shutr_now(chn);
4499 channel_shutw_now(chn);
Willy Tarreaucce7fa42010-01-16 23:19:39 +0100[diff] [blame]4500 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4501 }
4502 else {
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4503 /* The last possible modes are keep-alive and tunnel. Tunnel will
4504 * need to forward remaining data. Keep-alive will need to monitor
4505 * for connection closing.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4506 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4507 channel_auto_read(chn);
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4508 chn->flags |= CF_NEVER_WAIT;
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4509 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN)
4510 txn->rsp.msg_state = HTTP_MSG_TUNNEL;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4511 }
4512
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4513 goto check_channel_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4514 }
4515
4516 if (txn->rsp.msg_state == HTTP_MSG_CLOSING) {
4517 http_msg_closing:
4518 /* nothing else to forward, just waiting for the output buffer
4519 * to be empty and for the shutw_now to take effect.
4520 */
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4521 if (channel_is_empty(chn)) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4522 txn->rsp.msg_state = HTTP_MSG_CLOSED;
4523 goto http_msg_closed;
4524 }
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4525 else if (chn->flags & CF_SHUTW) {
Christopher Fauleta3992e02017-07-18 10:35:55 +0200[diff] [blame]4526 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4527 txn->rsp.msg_state = HTTP_MSG_ERROR;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]4528 s->be->be_counters.cli_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4529 if (objt_server(s->target))
4530 objt_server(s->target)->counters.cli_aborts++;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4531 }
Christopher Faulet56d26092017-07-20 11:05:10 +0200[diff] [blame]4532 goto wait_other_side;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4533 }
4534
4535 if (txn->rsp.msg_state == HTTP_MSG_CLOSED) {
4536 http_msg_closed:
4537 /* drop any pending data */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]4538 channel_truncate(chn);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4539 channel_auto_close(chn);
4540 channel_auto_read(chn);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4541 goto wait_other_side;
4542 }
4543
Christopher Faulet4be98032017-07-18 10:48:24 +0200[diff] [blame]4544 check_channel_flags:
4545 /* Here, we are in HTTP_MSG_DONE or HTTP_MSG_TUNNEL */
4546 if (chn->flags & (CF_SHUTW|CF_SHUTW_NOW)) {
4547 /* if we've just closed an output, let's switch */
4548 txn->rsp.msg_state = HTTP_MSG_CLOSING;
4549 goto http_msg_closing;
4550 }
4551
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4552 wait_other_side:
Willy Tarreaufc47f912012-10-20 10:38:09 +0200[diff] [blame]4553 /* We force the response to leave immediately if we're waiting for the
4554 * other side, since there is no pending shutdown to push it out.
4555 */
4556 if (!channel_is_empty(chn))
4557 chn->flags |= CF_SEND_DONTWAIT;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]4558 return txn->rsp.msg_state != old_state || chn->flags != old_flags;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4559}
4560
4561
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4562/* Resync the request and response state machines. */
4563void http_resync_states(struct stream *s)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4564{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4565 struct http_txn *txn = s->txn;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4566#ifdef DEBUG_FULL
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4567 int old_req_state = txn->req.msg_state;
4568 int old_res_state = txn->rsp.msg_state;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4569#endif
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4570
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4571 http_sync_req_state(s);
4572 while (1) {
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4573 if (!http_sync_res_state(s))
4574 break;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4575 if (!http_sync_req_state(s))
4576 break;
4577 }
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]4578
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4579 DPRINTF(stderr,"[%u] %s: stream=%p old=%s,%s cur=%s,%s "
4580 "req->analysers=0x%08x res->analysers=0x%08x\n",
4581 now_ms, __FUNCTION__, s,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]4582 h1_msg_state_str(old_req_state), h1_msg_state_str(old_res_state),
4583 h1_msg_state_str(txn->req.msg_state), h1_msg_state_str(txn->rsp.msg_state),
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4584 s->req.analysers, s->res.analysers);
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4585
4586
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4587 /* OK, both state machines agree on a compatible state.
4588 * There are a few cases we're interested in :
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4589 * - HTTP_MSG_CLOSED on both sides means we've reached the end in both
4590 * directions, so let's simply disable both analysers.
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4591 * - HTTP_MSG_CLOSED on the response only or HTTP_MSG_ERROR on either
4592 * means we must abort the request.
4593 * - HTTP_MSG_TUNNEL on either means we have to disable analyser on
4594 * corresponding channel.
4595 * - HTTP_MSG_DONE or HTTP_MSG_CLOSED on the request and HTTP_MSG_DONE
4596 * on the response with server-close mode means we've completed one
4597 * request and we must re-initialize the server connection.
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4598 */
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4599 if (txn->req.msg_state == HTTP_MSG_CLOSED &&
4600 txn->rsp.msg_state == HTTP_MSG_CLOSED) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4601 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4602 channel_auto_close(&s->req);
4603 channel_auto_read(&s->req);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4604 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4605 channel_auto_close(&s->res);
4606 channel_auto_read(&s->res);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4607 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4608 else if (txn->rsp.msg_state == HTTP_MSG_CLOSED ||
4609 txn->rsp.msg_state == HTTP_MSG_ERROR ||
Willy Tarreau40f151a2012-12-20 12:10:09 +0100[diff] [blame]4610 txn->req.msg_state == HTTP_MSG_ERROR) {
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4611 s->res.analysers &= AN_RES_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4612 channel_auto_close(&s->res);
4613 channel_auto_read(&s->res);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4614 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4615 channel_abort(&s->req);
4616 channel_auto_close(&s->req);
4617 channel_auto_read(&s->req);
4618 channel_truncate(&s->req);
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4619 }
Christopher Fauletf77bb532017-07-18 11:18:46 +0200[diff] [blame]4620 else if (txn->req.msg_state == HTTP_MSG_TUNNEL ||
4621 txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4622 if (txn->req.msg_state == HTTP_MSG_TUNNEL) {
4623 s->req.analysers &= AN_REQ_FLT_END;
4624 if (HAS_REQ_DATA_FILTERS(s))
4625 s->req.analysers |= AN_REQ_FLT_XFER_DATA;
4626 }
4627 if (txn->rsp.msg_state == HTTP_MSG_TUNNEL) {
4628 s->res.analysers &= AN_RES_FLT_END;
4629 if (HAS_RSP_DATA_FILTERS(s))
4630 s->res.analysers |= AN_RES_FLT_XFER_DATA;
4631 }
4632 channel_auto_close(&s->req);
4633 channel_auto_read(&s->req);
4634 channel_auto_close(&s->res);
4635 channel_auto_read(&s->res);
4636 }
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4637 else if ((txn->req.msg_state == HTTP_MSG_DONE ||
4638 txn->req.msg_state == HTTP_MSG_CLOSED) &&
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4639 txn->rsp.msg_state == HTTP_MSG_DONE &&
Willy Tarreau4213a112013-12-15 10:25:42 +0100[diff] [blame]4640 ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL ||
4641 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL)) {
4642 /* server-close/keep-alive: terminate this transaction,
4643 * possibly killing the server connection and reinitialize
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4644 * a fresh-new transaction, but only once we're sure there's
4645 * enough room in the request and response buffer to process
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]4646 * another request. They must not hold any pending output data
4647 * and the response buffer must realigned
4648 * (realign is done is http_end_txn_clean_session).
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4649 */
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4650 if (s->req.buf->o)
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4651 s->req.flags |= CF_WAKE_WRITE;
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4652 else if (s->res.buf->o)
Willy Tarreau3de5bd62016-05-02 16:07:07 +0200[diff] [blame]4653 s->res.flags |= CF_WAKE_WRITE;
Christopher Fauleta81ff602017-07-18 22:01:05 +0200[diff] [blame]4654 else {
4655 s->req.analysers = AN_REQ_FLT_END;
4656 s->res.analysers = AN_RES_FLT_END;
4657 txn->flags |= TX_WAIT_CLEANUP;
4658 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4659 }
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4660}
4661
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4662/* This function is an analyser which forwards request body (including chunk
4663 * sizes if any). It is called as soon as we must forward, even if we forward
4664 * zero byte. The only situation where it must not be called is when we're in
4665 * tunnel mode and we want to forward till the close. It's used both to forward
4666 * remaining data and to resync after end of body. It expects the msg_state to
4667 * 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]4668 * 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]4669 * When in MSG_DATA or MSG_TRAILERS, it will automatically forward chunk_len
Willy Tarreauc24715e2014-04-17 15:21:20 +0200[diff] [blame]4670 * bytes of pending data + the headers if not already done.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4671 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4672int http_request_forward_body(struct stream *s, struct channel *req, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4673{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4674 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4675 struct http_txn *txn = s->txn;
4676 struct http_msg *msg = &s->txn->req;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]4677 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4678
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]4679 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
4680 now_ms, __FUNCTION__,
4681 s,
4682 req,
4683 req->rex, req->wex,
4684 req->flags,
4685 req->buf->i,
4686 req->analysers);
4687
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4688 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
4689 return 0;
4690
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4691 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]4692 ((req->flags & CF_SHUTW) && (req->to_forward || req->buf->o))) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4693 /* Output closed while we were sending data. We must abort and
4694 * wake the other side up.
4695 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4696 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]4697 msg->msg_state = HTTP_MSG_ERROR;
4698 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]4699 return 1;
4700 }
4701
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4702 /* Note that we don't have to send 100-continue back because we don't
4703 * need the data to complete our job, and it's up to the server to
4704 * decide whether to return 100, 417 or anything else in return of
4705 * an "Expect: 100-continue" header.
4706 */
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4707 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4708 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
4709 ? HTTP_MSG_CHUNK_SIZE
4710 : HTTP_MSG_DATA);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4711
4712 /* TODO/filters: when http-buffer-request option is set or if a
4713 * rule on url_param exists, the first chunk size could be
4714 * already parsed. In that case, msg->next is after the chunk
4715 * size (including the CRLF after the size). So this case should
4716 * be handled to */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4717 }
4718
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4719 /* Some post-connect processing might want us to refrain from starting to
4720 * forward data. Currently, the only reason for this is "balance url_param"
4721 * whichs need to parse/process the request after we've enabled forwarding.
4722 */
4723 if (unlikely(msg->flags & HTTP_MSGF_WAIT_CONN)) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4724 if (!(s->res.flags & CF_READ_ATTACHED)) {
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4725 channel_auto_connect(req);
Willy Tarreau644c1012014-04-30 18:11:11 +0200[diff] [blame]4726 req->flags |= CF_WAKE_CONNECT;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4727 goto missing_data_or_waiting;
Willy Tarreau7ba23542014-04-17 21:50:00 +0200[diff] [blame]4728 }
4729 msg->flags &= ~HTTP_MSGF_WAIT_CONN;
4730 }
4731
Willy Tarreau80a92c02014-03-12 10:41:13 +0100[diff] [blame]4732 /* in most states, we should abort in case of early close */
4733 channel_auto_close(req);
4734
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4735 if (req->to_forward) {
4736 /* We can't process the buffer's contents yet */
4737 req->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4738 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]4739 }
4740
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4741 if (msg->msg_state < HTTP_MSG_DONE) {
4742 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
4743 ? http_msg_forward_chunked_body(s, msg)
4744 : http_msg_forward_body(s, msg));
4745 if (!ret)
4746 goto missing_data_or_waiting;
4747 if (ret < 0)
4748 goto return_bad_req;
4749 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]4750
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4751 /* other states, DONE...TUNNEL */
4752 /* we don't want to forward closes on DONE except in tunnel mode. */
4753 if ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
4754 channel_dont_close(req);
Willy Tarreau5c54c712010-07-17 08:02:58 +0200[diff] [blame]4755
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]4756 http_resync_states(s);
4757 if (!(req->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4758 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
4759 if (req->flags & CF_SHUTW) {
4760 /* request errors are most likely due to the
4761 * server aborting the transfer. */
4762 goto aborted_xfer;
Willy Tarreau58bd8fd2010-09-28 14:16:41 +0200[diff] [blame]4763 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4764 if (msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4765 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]4766 goto return_bad_req;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4767 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4768 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4769 }
4770
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4771 /* If "option abortonclose" is set on the backend, we want to monitor
4772 * the client's connection and forward any shutdown notification to the
4773 * server, which will decide whether to close or to go on processing the
4774 * request. We only do that in tunnel mode, and not in other modes since
4775 * it can be abused to exhaust source ports. */
4776 if (s->be->options & PR_O_ABRT_CLOSE) {
4777 channel_auto_read(req);
4778 if ((req->flags & (CF_SHUTR|CF_READ_NULL)) &&
4779 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN))
4780 s->si[1].flags |= SI_FL_NOLINGER;
4781 channel_auto_close(req);
4782 }
4783 else if (s->txn->meth == HTTP_METH_POST) {
4784 /* POST requests may require to read extra CRLF sent by broken
4785 * browsers and which could cause an RST to be sent upon close
4786 * on some systems (eg: Linux). */
4787 channel_auto_read(req);
4788 }
4789 return 0;
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]4790
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]4791 missing_data_or_waiting:
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4792 /* stop waiting for data if the input is closed before the end */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]4793 if (msg->msg_state < HTTP_MSG_ENDING && req->flags & CF_SHUTR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4794 if (!(s->flags & SF_ERR_MASK))
4795 s->flags |= SF_ERR_CLICL;
4796 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4797 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4798 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4799 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4800 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4801 }
4802
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4803 sess->fe->fe_counters.cli_aborts++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]4804 s->be->be_counters.cli_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4805 if (objt_server(s->target))
4806 objt_server(s->target)->counters.cli_aborts++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4807
4808 goto return_bad_req_stats_ok;
Willy Tarreau79ebac62010-06-07 13:47:49 +0200[diff] [blame]4809 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4810
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4811 /* waiting for the last bits to leave the buffer */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4812 if (req->flags & CF_SHUTW)
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4813 goto aborted_xfer;
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]4814
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]4815 /* When TE: chunked is used, we need to get there again to parse remaining
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4816 * 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]4817 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4818 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]4819 channel_dont_close(req);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]4820
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4821 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4822 * 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]4823 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]4824 * modes are already handled by the stream sock layer. We must not do
4825 * this in content-length mode because it could present the MSG_MORE
4826 * flag with the last block of forwarded data, which would cause an
4827 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4828 */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]4829 if (msg->flags & HTTP_MSGF_TE_CHNK)
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]4830 req->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]4831
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]4832 return 0;
4833
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4834 return_bad_req: /* let's centralize all bad requests */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4835 sess->fe->fe_counters.failed_req++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]4836 if (sess->listener->counters)
4837 sess->listener->counters->failed_req++;
Willy Tarreaubed410e2014-04-22 08:19:34 +0200[diff] [blame]4838
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4839 return_bad_req_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4840 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4841 txn->req.msg_state = HTTP_MSG_ERROR;
4842 if (txn->status) {
4843 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4844 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4845 } else {
4846 txn->status = 400;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4847 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4848 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4849 req->analysers &= AN_REQ_FLT_END;
4850 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]4851
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4852 if (!(s->flags & SF_ERR_MASK))
4853 s->flags |= SF_ERR_PRXCOND;
4854 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4855 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4856 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4857 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4858 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4859 }
4860 return 0;
4861
4862 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]4863 txn->req.err_state = txn->req.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4864 txn->req.msg_state = HTTP_MSG_ERROR;
4865 if (txn->status) {
4866 /* Note: we don't send any error if some data were already sent */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]4867 http_reply_and_close(s, txn->status, NULL);
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4868 } else {
4869 txn->status = 502;
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]4870 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4871 }
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]4872 req->analysers &= AN_REQ_FLT_END;
4873 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]4874
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4875 sess->fe->fe_counters.srv_aborts++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]4876 s->be->be_counters.srv_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]4877 if (objt_server(s->target))
4878 objt_server(s->target)->counters.srv_aborts++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4879
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4880 if (!(s->flags & SF_ERR_MASK))
4881 s->flags |= SF_ERR_SRVCL;
4882 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4883 if (txn->rsp.msg_state < HTTP_MSG_ERROR)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4884 s->flags |= SF_FINST_H;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4885 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]4886 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]4887 }
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]4888 return 0;
4889}
4890
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4891/* This stream analyser waits for a complete HTTP response. It returns 1 if the
4892 * processing can continue on next analysers, or zero if it either needs more
4893 * data or wants to immediately abort the response (eg: timeout, error, ...). It
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]4894 * 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]4895 * when it has nothing left to do, and may remove any analyser when it wants to
4896 * abort.
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]4897 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4898int http_wait_for_response(struct stream *s, struct channel *rep, int an_bit)
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200[diff] [blame]4899{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]4900 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]4901 struct http_txn *txn = s->txn;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4902 struct http_msg *msg = &txn->rsp;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]4903 struct hdr_ctx ctx;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]4904 int use_close_only;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4905 int cur_idx;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]4906 int n;
Willy Tarreauadfb8562008-08-11 15:24:42 +0200[diff] [blame]4907
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]4908 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]4909 now_ms, __FUNCTION__,
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4910 s,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]4911 rep,
4912 rep->rex, rep->wex,
4913 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4914 rep->buf->i,
Willy Tarreau3a16b2c2008-08-28 08:54:27 +0200[diff] [blame]4915 rep->analysers);
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200[diff] [blame]4916
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4917 /*
4918 * Now parse the partial (or complete) lines.
4919 * We will check the response syntax, and also join multi-line
4920 * headers. An index of all the lines will be elaborated while
4921 * parsing.
4922 *
4923 * For the parsing, we use a 28 states FSM.
4924 *
4925 * Here is the information we currently have :
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4926 * rep->buf->p = beginning of response
4927 * rep->buf->p + msg->eoh = end of processed headers / start of current one
4928 * rep->buf->p + rep->buf->i = end of input data
Willy Tarreau26927362012-05-18 23:22:52 +0200[diff] [blame]4929 * msg->eol = end of current header or line (LF or CRLF)
4930 * msg->next = first non-visited byte
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4931 */
4932
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]4933 next_one:
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]4934 /* There's a protected area at the end of the buffer for rewriting
4935 * purposes. We don't want to start to parse the request if the
4936 * protected area is affected, because we may have to move processed
4937 * data later, which is much more complicated.
4938 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4939 if (buffer_not_empty(rep->buf) && msg->msg_state < HTTP_MSG_ERROR) {
Willy Tarreauba0902e2015-01-13 14:39:16 +0100[diff] [blame]4940 if (unlikely(!channel_is_rewritable(rep))) {
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]4941 /* some data has still not left the buffer, wake us once that's done */
4942 if (rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_WRITE_ERROR|CF_WRITE_TIMEOUT))
4943 goto abort_response;
4944 channel_dont_close(rep);
4945 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +0100[diff] [blame]4946 rep->flags |= CF_WAKE_WRITE;
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]4947 return 0;
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]4948 }
4949
Willy Tarreau379357a2013-06-08 12:55:46 +0200[diff] [blame]4950 if (unlikely(bi_end(rep->buf) < b_ptr(rep->buf, msg->next) ||
4951 bi_end(rep->buf) > rep->buf->data + rep->buf->size - global.tune.maxrewrite))
4952 buffer_slow_realign(rep->buf);
4953
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4954 if (likely(msg->next < rep->buf->i))
Willy Tarreaua560c212012-03-09 13:50:57 +0100[diff] [blame]4955 http_msg_analyzer(msg, &txn->hdr_idx);
Willy Tarreau83e3af02009-12-28 17:39:57 +0100[diff] [blame]4956 }
4957
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4958 /* 1: we might have to print this header in debug mode */
4959 if (unlikely((global.mode & MODE_DEBUG) &&
4960 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
Willy Tarreau7d59e902014-10-21 19:36:09 +0200[diff] [blame]4961 msg->msg_state >= HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4962 char *eol, *sol;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]4963
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]4964 sol = rep->buf->p;
4965 eol = sol + (msg->sl.st.l ? msg->sl.st.l : rep->buf->i);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4966 debug_hdr("srvrep", s, sol, eol);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]4967
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4968 sol += hdr_idx_first_pos(&txn->hdr_idx);
4969 cur_idx = hdr_idx_first_idx(&txn->hdr_idx);
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]4970
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4971 while (cur_idx) {
4972 eol = sol + txn->hdr_idx.v[cur_idx].len;
4973 debug_hdr("srvhdr", s, sol, eol);
4974 sol = eol + txn->hdr_idx.v[cur_idx].cr + 1;
4975 cur_idx = txn->hdr_idx.v[cur_idx].next;
4976 }
4977 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]4978
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4979 /*
4980 * Now we quickly check if we have found a full valid response.
4981 * If not so, we check the FD and buffer states before leaving.
4982 * A full response is indicated by the fact that we have seen
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]4983 * the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4984 * responses are checked first.
4985 *
4986 * Depending on whether the client is still there or not, we
4987 * may send an error response back or not. Note that normally
4988 * we should only check for HTTP status there, and check I/O
4989 * errors somewhere else.
4990 */
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]4991
Willy Tarreau655dce92009-11-08 13:10:58 +0100[diff] [blame]4992 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]4993 /* Invalid response */
4994 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
4995 /* we detected a parsing error. We want to archive this response
4996 * in the dedicated proxy area for later troubleshooting.
4997 */
4998 hdr_response_bad:
4999 if (msg->msg_state == HTTP_MSG_ERROR || msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5000 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]5001
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5002 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5003 if (objt_server(s->target)) {
5004 objt_server(s->target)->counters.failed_resp++;
5005 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5006 }
Willy Tarreau64648412010-03-05 10:41:54 +0100[diff] [blame]5007 abort_response:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5008 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5009 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5010 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5011 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5012 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5013 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5014
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5015 if (!(s->flags & SF_ERR_MASK))
5016 s->flags |= SF_ERR_PRXCOND;
5017 if (!(s->flags & SF_FINST_MASK))
5018 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5019
5020 return 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5021 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5022
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5023 /* too large response does not fit in buffer. */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5024 else if (buffer_full(rep->buf, global.tune.maxrewrite)) {
Willy Tarreaufec4d892011-09-02 20:04:57 +0200[diff] [blame]5025 if (msg->err_pos < 0)
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5026 msg->err_pos = rep->buf->i;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5027 goto hdr_response_bad;
5028 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5029
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5030 /* read error */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5031 else if (rep->flags & CF_READ_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5032 if (msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5033 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]5034 else if (txn->flags & TX_NOT_FIRST)
5035 goto abort_keep_alive;
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5036
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5037 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5038 if (objt_server(s->target)) {
5039 objt_server(s->target)->counters.failed_resp++;
5040 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_ERROR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5041 }
Willy Tarreau461f6622008-08-15 23:43:19 +0200[diff] [blame]5042
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5043 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5044 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5045 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5046 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5047 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5048 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau816b9792009-09-15 21:25:21 +0200[diff] [blame]5049
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5050 if (!(s->flags & SF_ERR_MASK))
5051 s->flags |= SF_ERR_SRVCL;
5052 if (!(s->flags & SF_FINST_MASK))
5053 s->flags |= SF_FINST_H;
Willy Tarreaucebf57e2008-08-15 18:16:37 +0200[diff] [blame]5054 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5055 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5056
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +0200[diff] [blame]5057 /* read timeout : return a 504 to the client. */
5058 else if (rep->flags & CF_READ_TIMEOUT) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5059 if (msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5060 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]5061
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5062 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5063 if (objt_server(s->target)) {
5064 objt_server(s->target)->counters.failed_resp++;
5065 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_READ_TIMEOUT);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5066 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5067
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5068 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5069 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5070 txn->status = 504;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5071 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5072 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5073 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]5074
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5075 if (!(s->flags & SF_ERR_MASK))
5076 s->flags |= SF_ERR_SRVTO;
5077 if (!(s->flags & SF_FINST_MASK))
5078 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5079 return 0;
5080 }
Willy Tarreaua7c52762008-08-16 18:40:18 +0200[diff] [blame]5081
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5082 /* client abort with an abortonclose */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5083 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]5084 sess->fe->fe_counters.cli_aborts++;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5085 s->be->be_counters.cli_aborts++;
5086 if (objt_server(s->target))
5087 objt_server(s->target)->counters.cli_aborts++;
5088
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5089 rep->analysers &= AN_RES_FLT_END;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5090 channel_auto_close(rep);
5091
5092 txn->status = 400;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5093 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5094 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5095
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5096 if (!(s->flags & SF_ERR_MASK))
5097 s->flags |= SF_ERR_CLICL;
5098 if (!(s->flags & SF_FINST_MASK))
5099 s->flags |= SF_FINST_H;
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5100
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5101 /* process_stream() will take care of the error */
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5102 return 0;
5103 }
5104
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5105 /* close from server, capture the response if the server has started to respond */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5106 else if (rep->flags & CF_SHUTR) {
Willy Tarreau3b8c08a2011-09-02 20:16:24 +0200[diff] [blame]5107 if (msg->msg_state >= HTTP_MSG_RPVER || msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5108 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]5109 else if (txn->flags & TX_NOT_FIRST)
5110 goto abort_keep_alive;
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5111
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5112 s->be->be_counters.failed_resp++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5113 if (objt_server(s->target)) {
5114 objt_server(s->target)->counters.failed_resp++;
5115 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_BROKEN_PIPE);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5116 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5117
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5118 channel_auto_close(rep);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5119 rep->analysers &= AN_RES_FLT_END;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5120 txn->status = 502;
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5121 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5122 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5123 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5124
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5125 if (!(s->flags & SF_ERR_MASK))
5126 s->flags |= SF_ERR_SRVCL;
5127 if (!(s->flags & SF_FINST_MASK))
5128 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5129 return 0;
5130 }
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5131
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5132 /* write error to client (we don't send any message then) */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5133 else if (rep->flags & CF_WRITE_ERROR) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5134 if (msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5135 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]5136 else if (txn->flags & TX_NOT_FIRST)
5137 goto abort_keep_alive;
Krzysztof Piotr Oledzki5fb18822009-10-13 21:14:09 +0200[diff] [blame]5138
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]5139 s->be->be_counters.failed_resp++;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5140 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5141 channel_auto_close(rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5142
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5143 if (!(s->flags & SF_ERR_MASK))
5144 s->flags |= SF_ERR_CLICL;
5145 if (!(s->flags & SF_FINST_MASK))
5146 s->flags |= SF_FINST_H;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5147
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5148 /* process_stream() will take care of the error */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5149 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5150 }
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5151
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5152 channel_dont_close(rep);
Willy Tarreau3f3997e2013-12-15 15:21:32 +0100[diff] [blame]5153 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5154 return 0;
5155 }
5156
5157 /* More interesting part now : we know that we have a complete
5158 * response which at least looks like HTTP. We have an indicator
5159 * of each header's length, so we can parse them quickly.
5160 */
5161
5162 if (unlikely(msg->err_pos >= 0))
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5163 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]5164
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5165 /*
5166 * 1: get the status code
5167 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5168 n = rep->buf->p[msg->sl.st.c] - '0';
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5169 if (n < 1 || n > 5)
5170 n = 0;
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5171 /* when the client triggers a 4xx from the server, it's most often due
5172 * to a missing object or permission. These events should be tracked
5173 * because if they happen often, it may indicate a brute force or a
5174 * vulnerability scan.
5175 */
5176 if (n == 4)
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5177 stream_inc_http_err_ctr(s);
Willy Tarreauda7ff642010-06-23 11:44:09 +0200[diff] [blame]5178
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5179 if (objt_server(s->target))
5180 objt_server(s->target)->counters.p.http.rsp[n]++;
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5181
Willy Tarreau91852eb2015-05-01 13:26:00 +0200[diff] [blame]5182 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
5183 * exactly one digit "." one digit. This check may be disabled using
5184 * option accept-invalid-http-response.
5185 */
5186 if (!(s->be->options2 & PR_O2_RSPBUG_OK)) {
5187 if (msg->sl.st.v_l != 8) {
5188 msg->err_pos = 0;
5189 goto hdr_response_bad;
5190 }
5191
5192 if (rep->buf->p[4] != '/' ||
5193 !isdigit((unsigned char)rep->buf->p[5]) ||
5194 rep->buf->p[6] != '.' ||
5195 !isdigit((unsigned char)rep->buf->p[7])) {
5196 msg->err_pos = 4;
5197 goto hdr_response_bad;
5198 }
5199 }
5200
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5201 /* check if the response is HTTP/1.1 or above */
5202 if ((msg->sl.st.v_l == 8) &&
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5203 ((rep->buf->p[5] > '1') ||
5204 ((rep->buf->p[5] == '1') && (rep->buf->p[7] >= '1'))))
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5205 msg->flags |= HTTP_MSGF_VER_11;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5206
5207 /* "connection" has not been parsed yet */
Willy Tarreau50fc7772012-11-11 22:19:57 +0100[diff] [blame]5208 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]5209
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5210 /* transfer length unknown*/
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5211 msg->flags &= ~HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5212
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5213 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]5214
Willy Tarreau39650402010-03-15 19:44:39 +0100[diff] [blame]5215 /* Adjust server's health based on status code. Note: status codes 501
5216 * and 505 are triggered on demand by client request, so we must not
5217 * count them as server failures.
5218 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5219 if (objt_server(s->target)) {
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5220 if (txn->status >= 100 && (txn->status < 500 || txn->status == 501 || txn->status == 505))
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5221 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_OK);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5222 else
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]5223 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_STS);
Willy Tarreaud45b3d52010-05-20 11:49:03 +0200[diff] [blame]5224 }
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100[diff] [blame]5225
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5226 /*
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5227 * We may be facing a 100-continue response, or any other informational
5228 * 1xx response which is non-final, in which case this is not the right
5229 * response, and we're waiting for the next one. Let's allow this response
5230 * to go to the client and wait for the next one. There's an exception for
5231 * 101 which is used later in the code to switch protocols.
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5232 */
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5233 if (txn->status < 200 &&
5234 (txn->status == 100 || txn->status >= 102)) {
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5235 hdr_idx_init(&txn->hdr_idx);
5236 msg->next -= channel_forward(rep, msg->next);
5237 msg->msg_state = HTTP_MSG_RPBEFORE;
5238 txn->status = 0;
5239 s->logs.t_data = -1; /* was not a response yet */
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5240 FLT_STRM_CB(s, flt_http_reset(s, msg));
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5241 goto next_one;
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5242 }
Willy Tarreau628c40c2014-04-24 19:11:26 +0200[diff] [blame]5243
Willy Tarreaua14ad722017-07-07 11:36:32 +0200[diff] [blame]5244 /*
5245 * 2: check for cacheability.
5246 */
5247
5248 switch (txn->status) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5249 case 200:
5250 case 203:
5251 case 206:
5252 case 300:
5253 case 301:
5254 case 410:
5255 /* RFC2616 @13.4:
5256 * "A response received with a status code of
5257 * 200, 203, 206, 300, 301 or 410 MAY be stored
5258 * by a cache (...) unless a cache-control
5259 * directive prohibits caching."
5260 *
5261 * RFC2616 @9.5: POST method :
5262 * "Responses to this method are not cacheable,
5263 * unless the response includes appropriate
5264 * Cache-Control or Expires header fields."
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5265 */
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5266 if (likely(txn->meth != HTTP_METH_POST) &&
Willy Tarreau67402132012-05-31 20:40:20 +0200[diff] [blame]5267 ((s->be->options & PR_O_CHK_CACHE) || (s->be->ck_opts & PR_CK_NOC)))
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5268 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
5269 break;
5270 default:
5271 break;
5272 }
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5273
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5274 /*
5275 * 3: we may need to capture headers
5276 */
5277 s->logs.logwait &= ~LW_RESP;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5278 if (unlikely((s->logs.logwait & LW_RSPHDR) && s->res_cap))
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5279 capture_headers(rep->buf->p, &txn->hdr_idx,
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]5280 s->res_cap, sess->fe->rsp_cap);
Willy Tarreaub37c27e2009-10-18 22:53:08 +0200[diff] [blame]5281
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5282 /* 4: determine the transfer-length according to RFC2616 #4.4, updated
5283 * by RFC7230#3.3.3 :
5284 *
5285 * The length of a message body is determined by one of the following
5286 * (in order of precedence):
5287 *
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5288 * 1. Any 2xx (Successful) response to a CONNECT request implies that
5289 * the connection will become a tunnel immediately after the empty
5290 * line that concludes the header fields. A client MUST ignore
5291 * any Content-Length or Transfer-Encoding header fields received
5292 * in such a message. Any 101 response (Switching Protocols) is
5293 * managed in the same manner.
5294 *
5295 * 2. Any response to a HEAD request and any response with a 1xx
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5296 * (Informational), 204 (No Content), or 304 (Not Modified) status
5297 * code is always terminated by the first empty line after the
5298 * header fields, regardless of the header fields present in the
5299 * message, and thus cannot contain a message body.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5300 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5301 * 3. If a Transfer-Encoding header field is present and the chunked
5302 * transfer coding (Section 4.1) is the final encoding, the message
5303 * body length is determined by reading and decoding the chunked
5304 * data until the transfer coding indicates the data is complete.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5305 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5306 * If a Transfer-Encoding header field is present in a response and
5307 * the chunked transfer coding is not the final encoding, the
5308 * message body length is determined by reading the connection until
5309 * it is closed by the server. If a Transfer-Encoding header field
5310 * is present in a request and the chunked transfer coding is not
5311 * the final encoding, the message body length cannot be determined
5312 * reliably; the server MUST respond with the 400 (Bad Request)
5313 * status code and then close the connection.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5314 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5315 * If a message is received with both a Transfer-Encoding and a
5316 * Content-Length header field, the Transfer-Encoding overrides the
5317 * Content-Length. Such a message might indicate an attempt to
5318 * perform request smuggling (Section 9.5) or response splitting
5319 * (Section 9.4) and ought to be handled as an error. A sender MUST
5320 * remove the received Content-Length field prior to forwarding such
5321 * a message downstream.
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5322 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5323 * 4. If a message is received without Transfer-Encoding and with
5324 * either multiple Content-Length header fields having differing
5325 * field-values or a single Content-Length header field having an
5326 * invalid value, then the message framing is invalid and the
5327 * recipient MUST treat it as an unrecoverable error. If this is a
5328 * request message, the server MUST respond with a 400 (Bad Request)
5329 * status code and then close the connection. If this is a response
5330 * message received by a proxy, the proxy MUST close the connection
5331 * to the server, discard the received response, and send a 502 (Bad
5332 * Gateway) response to the client. If this is a response message
5333 * received by a user agent, the user agent MUST close the
5334 * connection to the server and discard the received response.
5335 *
5336 * 5. If a valid Content-Length header field is present without
5337 * Transfer-Encoding, its decimal value defines the expected message
5338 * body length in octets. If the sender closes the connection or
5339 * the recipient times out before the indicated number of octets are
5340 * received, the recipient MUST consider the message to be
5341 * incomplete and close the connection.
5342 *
5343 * 6. If this is a request message and none of the above are true, then
5344 * the message body length is zero (no message body is present).
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5345 *
Willy Tarreau557f1992015-05-01 10:05:17 +0200[diff] [blame]5346 * 7. Otherwise, this is a response message without a declared message
5347 * body length, so the message body length is determined by the
5348 * number of octets received prior to the server closing the
5349 * connection.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5350 */
5351
5352 /* Skip parsing if no content length is possible. The response flags
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5353 * remain 0 as well as the chunk_len, which may or may not mirror
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5354 * the real header value, and we note that we know the response's length.
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5355 * FIXME: should we parse anyway and return an error on chunked encoding ?
5356 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5357 if (unlikely((txn->meth == HTTP_METH_CONNECT && txn->status == 200) ||
5358 txn->status == 101)) {
5359 /* Either we've established an explicit tunnel, or we're
5360 * switching the protocol. In both cases, we're very unlikely
5361 * to understand the next protocols. We have to switch to tunnel
5362 * mode, so that we transfer the request and responses then let
5363 * this protocol pass unmodified. When we later implement specific
5364 * parsers for such protocols, we'll want to check the Upgrade
5365 * header which contains information about that protocol for
5366 * responses with status 101 (eg: see RFC2817 about TLS).
5367 */
5368 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_TUN;
5369 msg->flags |= HTTP_MSGF_XFER_LEN;
5370 goto end;
5371 }
5372
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5373 if (txn->meth == HTTP_METH_HEAD ||
5374 (txn->status >= 100 && txn->status < 200) ||
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5375 txn->status == 204 || txn->status == 304) {
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5376 msg->flags |= HTTP_MSGF_XFER_LEN;
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5377 goto skip_content_length;
5378 }
5379
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5380 use_close_only = 0;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5381 ctx.idx = 0;
Willy Tarreau4979d5c2015-05-01 10:06:30 +0200[diff] [blame]5382 while (http_find_header2("Transfer-Encoding", 17, rep->buf->p, &txn->hdr_idx, &ctx)) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5383 if (ctx.vlen == 7 && strncasecmp(ctx.line + ctx.val, "chunked", 7) == 0)
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5384 msg->flags |= (HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
5385 else if (msg->flags & HTTP_MSGF_TE_CHNK) {
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5386 /* bad transfer-encoding (chunked followed by something else) */
5387 use_close_only = 1;
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5388 msg->flags &= ~(HTTP_MSGF_TE_CHNK | HTTP_MSGF_XFER_LEN);
Willy Tarreaue8e785b2009-12-26 15:34:26 +0100[diff] [blame]5389 break;
5390 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5391 }
5392
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5393 /* Chunked responses must have their content-length removed */
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5394 ctx.idx = 0;
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]5395 if (use_close_only || (msg->flags & HTTP_MSGF_TE_CHNK)) {
Willy Tarreau1c913912015-04-30 10:57:51 +0200[diff] [blame]5396 while (http_find_header2("Content-Length", 14, rep->buf->p, &txn->hdr_idx, &ctx))
5397 http_remove_header2(msg, &txn->hdr_idx, &ctx);
5398 }
Willy Tarreaub4d0c032015-05-01 10:25:45 +0200[diff] [blame]5399 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]5400 signed long long cl;
5401
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5402 if (!ctx.vlen) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5403 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5404 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5405 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5406
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5407 if (strl2llrc(ctx.line + ctx.val, ctx.vlen, &cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5408 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5409 goto hdr_response_bad; /* parse failure */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5410 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5411
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5412 if (cl < 0) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5413 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5414 goto hdr_response_bad;
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5415 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5416
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5417 if ((msg->flags & HTTP_MSGF_CNT_LEN) && (msg->chunk_len != cl)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]5418 msg->err_pos = ctx.line + ctx.val - rep->buf->p;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5419 goto hdr_response_bad; /* already specified, was different */
Willy Tarreauad14f752011-09-02 20:33:27 +0200[diff] [blame]5420 }
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5421
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5422 msg->flags |= HTTP_MSGF_CNT_LEN | HTTP_MSGF_XFER_LEN;
Willy Tarreau124d9912011-03-01 20:30:48 +0100[diff] [blame]5423 msg->body_len = msg->chunk_len = cl;
Willy Tarreaub8c82c22009-10-18 23:45:12 +0200[diff] [blame]5424 }
5425
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5426 skip_content_length:
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5427 /* Now we have to check if we need to modify the Connection header.
5428 * This is more difficult on the response than it is on the request,
5429 * because we can have two different HTTP versions and we don't know
5430 * how the client will interprete a response. For instance, let's say
5431 * that the client sends a keep-alive request in HTTP/1.0 and gets an
5432 * HTTP/1.1 response without any header. Maybe it will bound itself to
5433 * HTTP/1.0 because it only knows about it, and will consider the lack
5434 * of header as a close, or maybe it knows HTTP/1.1 and can consider
5435 * the lack of header as a keep-alive. Thus we will use two flags
5436 * indicating how a request MAY be understood by the client. In case
5437 * of multiple possibilities, we'll fix the header to be explicit. If
5438 * ambiguous cases such as both close and keepalive are seen, then we
5439 * will fall back to explicit close. Note that we won't take risks with
5440 * HTTP/1.0 clients which may not necessarily understand keep-alive.
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5441 * See doc/internals/connection-header.txt for the complete matrix.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5442 */
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5443 if ((txn->status >= 200) && !(txn->flags & TX_HDR_CONN_PRS) &&
5444 ((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN ||
5445 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
5446 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5447 int to_del = 0;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5448
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5449 /* this situation happens when combining pretend-keepalive with httpclose. */
5450 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5451 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5452 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))
Willy Tarreau70dffda2014-01-30 03:07:23 +0100[diff] [blame]5453 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
5454
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5455 /* on unknown transfer length, we must close */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5456 if (!(msg->flags & HTTP_MSGF_XFER_LEN) &&
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5457 (txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN)
5458 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_CLO;
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5459
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5460 /* now adjust header transformations depending on current state */
5461 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_TUN ||
5462 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_CLO) {
5463 to_del |= 2; /* remove "keep-alive" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5464 if (!(msg->flags & HTTP_MSGF_VER_11))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5465 to_del |= 1; /* remove "close" for HTTP/1.0 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5466 }
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5467 else { /* SCL / KAL */
5468 to_del |= 1; /* remove "close" on any response */
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5469 if (txn->req.flags & msg->flags & HTTP_MSGF_VER_11)
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5470 to_del |= 2; /* remove "keep-alive" on pure 1.1 responses */
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5471 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5472
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5473 /* Parse and remove some headers from the connection header */
Willy Tarreau6acf7c92012-03-09 13:30:45 +0100[diff] [blame]5474 http_parse_connection_header(txn, msg, to_del);
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5475
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5476 /* Some keep-alive responses are converted to Server-close if
5477 * the server wants to close.
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5478 */
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5479 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL) {
5480 if ((txn->flags & TX_HDR_CONN_CLO) ||
Willy Tarreaua36fc4d2012-02-17 17:39:37 +0100[diff] [blame]5481 (!(txn->flags & TX_HDR_CONN_KAL) && !(msg->flags & HTTP_MSGF_VER_11)))
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5482 txn->flags = (txn->flags & ~TX_CON_WANT_MSK) | TX_CON_WANT_SCL;
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]5483 }
Willy Tarreau5b154472009-12-21 20:11:07 +0100[diff] [blame]5484 }
5485
Christopher Fauletd1cd2092016-11-28 10:14:03 +0100[diff] [blame]5486 end:
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5487 /* we want to have the response time before we start processing it */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]5488 s->logs.t_data = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau7959a552013-09-23 16:44:27 +0200[diff] [blame]5489
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5490 /* end of job, return OK */
5491 rep->analysers &= ~an_bit;
5492 rep->analyse_exp = TICK_ETERNITY;
5493 channel_auto_close(rep);
5494 return 1;
5495
5496 abort_keep_alive:
5497 /* A keep-alive request to the server failed on a network error.
5498 * The client is required to retry. We need to close without returning
5499 * any other information so that the client retries.
5500 */
5501 txn->status = 0;
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5502 rep->analysers &= AN_RES_FLT_END;
5503 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5504 channel_auto_close(rep);
5505 s->logs.logwait = 0;
5506 s->logs.level = 0;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5507 s->res.flags &= ~CF_EXPECT_MORE; /* speed up sending a previous response */
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5508 channel_truncate(rep);
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]5509 http_reply_and_close(s, txn->status, NULL);
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5510 return 0;
5511}
5512
5513/* This function performs all the processing enabled for the current response.
5514 * It normally returns 1 unless it wants to break. It relies on buffers flags,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5515 * and updates s->res.analysers. It might make sense to explode it into several
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5516 * other functions. It works like process_request (see indications above).
5517 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5518int 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]5519{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5520 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5521 struct http_txn *txn = s->txn;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5522 struct http_msg *msg = &txn->rsp;
5523 struct proxy *cur_proxy;
5524 struct cond_wordlist *wl;
Thierry FOURNIER9e2ef992015-02-25 13:51:19 +0100[diff] [blame]5525 enum rule_result ret = HTTP_RULE_RES_CONT;
Willy Tarreauf118d9f2014-04-24 18:26:08 +0200[diff] [blame]5526
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5527 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]5528 now_ms, __FUNCTION__,
5529 s,
5530 rep,
5531 rep->rex, rep->wex,
5532 rep->flags,
5533 rep->buf->i,
5534 rep->analysers);
5535
5536 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) /* we need more data */
5537 return 0;
5538
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5539 /* The stats applet needs to adjust the Connection header but we don't
5540 * apply any filter there.
5541 */
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5542 if (unlikely(objt_applet(s->target) == &http_stats_applet)) {
5543 rep->analysers &= ~an_bit;
5544 rep->analyse_exp = TICK_ETERNITY;
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5545 goto skip_filters;
Willy Tarreau612adb82015-03-10 15:25:54 +0100[diff] [blame]5546 }
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5547
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5548 /*
5549 * We will have to evaluate the filters.
5550 * As opposed to version 1.2, now they will be evaluated in the
5551 * filters order and not in the header order. This means that
5552 * each filter has to be validated among all headers.
5553 *
5554 * Filters are tried with ->be first, then with ->fe if it is
5555 * different from ->be.
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5556 *
5557 * Maybe we are in resume condiion. In this case I choose the
5558 * "struct proxy" which contains the rule list matching the resume
5559 * pointer. If none of theses "struct proxy" match, I initialise
5560 * the process with the first one.
5561 *
5562 * In fact, I check only correspondance betwwen the current list
5563 * pointer and the ->fe rule list. If it doesn't match, I initialize
5564 * the loop with the ->be.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5565 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5566 if (s->current_rule_list == &sess->fe->http_res_rules)
5567 cur_proxy = sess->fe;
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5568 else
5569 cur_proxy = s->be;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5570 while (1) {
5571 struct proxy *rule_set = cur_proxy;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5572
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5573 /* evaluate http-response rules */
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5574 if (ret == HTTP_RULE_RES_CONT) {
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]5575 ret = http_res_get_intercept_rule(cur_proxy, &cur_proxy->http_res_rules, s);
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]5576
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]5577 if (ret == HTTP_RULE_RES_BADREQ)
5578 goto return_srv_prx_502;
5579
5580 if (ret == HTTP_RULE_RES_DONE) {
5581 rep->analysers &= ~an_bit;
5582 rep->analyse_exp = TICK_ETERNITY;
5583 return 1;
5584 }
5585 }
5586
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5587 /* we need to be called again. */
5588 if (ret == HTTP_RULE_RES_YIELD) {
5589 channel_dont_close(rep);
5590 return 0;
5591 }
5592
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5593 /* try headers filters */
5594 if (rule_set->rsp_exp != NULL) {
5595 if (apply_filters_to_response(s, rep, rule_set) < 0) {
5596 return_bad_resp:
5597 if (objt_server(s->target)) {
5598 objt_server(s->target)->counters.failed_resp++;
5599 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_RSP);
Willy Tarreau21d2af32008-02-14 20:25:24 +0100[diff] [blame]5600 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5601 s->be->be_counters.failed_resp++;
5602 return_srv_prx_502:
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]5603 rep->analysers &= AN_RES_FLT_END;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5604 txn->status = 502;
5605 s->logs.t_data = -1; /* was not a valid response */
Willy Tarreau350f4872014-11-28 14:42:25 +0100[diff] [blame]5606 s->si[1].flags |= SI_FL_NOLINGER;
Willy Tarreau319f7452015-01-14 20:32:59 +0100[diff] [blame]5607 channel_truncate(rep);
Jarno Huuskonen9e6906b2017-03-06 14:21:49 +0200[diff] [blame]5608 http_reply_and_close(s, txn->status, http_error_message(s));
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5609 if (!(s->flags & SF_ERR_MASK))
5610 s->flags |= SF_ERR_PRXCOND;
5611 if (!(s->flags & SF_FINST_MASK))
5612 s->flags |= SF_FINST_H;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5613 return 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5614 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5615 }
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5616
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5617 /* has the response been denied ? */
5618 if (txn->flags & TX_SVDENY) {
5619 if (objt_server(s->target))
5620 objt_server(s->target)->counters.failed_secu++;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5621
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5622 s->be->be_counters.denied_resp++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5623 sess->fe->fe_counters.denied_resp++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5624 if (sess->listener->counters)
5625 sess->listener->counters->denied_resp++;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5626
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5627 goto return_srv_prx_502;
5628 }
Willy Tarreau0bbc3cf2006-10-15 14:26:02 +0200[diff] [blame]5629
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5630 /* add response headers from the rule sets in the same order */
5631 list_for_each_entry(wl, &rule_set->rsp_add, list) {
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5632 if (txn->status < 200 && txn->status != 101)
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5633 break;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5634 if (wl->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]5635 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]5636 ret = acl_pass(ret);
5637 if (((struct acl_cond *)wl->cond)->pol == ACL_COND_UNLESS)
5638 ret = !ret;
5639 if (!ret)
5640 continue;
5641 }
5642 if (unlikely(http_header_add_tail(&txn->rsp, &txn->hdr_idx, wl->s) < 0))
5643 goto return_bad_resp;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5644 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5645
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5646 /* check whether we're already working on the frontend */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5647 if (cur_proxy == sess->fe)
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5648 break;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5649 cur_proxy = sess->fe;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5650 }
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5651
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]5652 /* After this point, this anayzer can't return yield, so we can
5653 * remove the bit corresponding to this analyzer from the list.
5654 *
5655 * Note that the intermediate returns and goto found previously
5656 * reset the analyzers.
5657 */
5658 rep->analysers &= ~an_bit;
5659 rep->analyse_exp = TICK_ETERNITY;
5660
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5661 /* OK that's all we can do for 1xx responses */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5662 if (unlikely(txn->status < 200 && txn->status != 101))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5663 goto skip_header_mangling;
Willy Tarreau63c9e5f2009-12-22 16:01:27 +0100[diff] [blame]5664
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5665 /*
5666 * Now check for a server cookie.
5667 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]5668 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]5669 manage_server_side_cookies(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5670
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5671 /*
5672 * Check for cache-control or pragma headers if required.
5673 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5674 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]5675 check_response_for_cacheability(s, rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5676
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5677 /*
5678 * Add server cookie in the response if needed
5679 */
5680 if (objt_server(s->target) && (s->be->ck_opts & PR_CK_INS) &&
5681 !((txn->flags & TX_SCK_FOUND) && (s->be->ck_opts & PR_CK_PSV)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5682 (!(s->flags & SF_DIRECT) ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5683 ((s->be->cookie_maxidle || txn->cookie_last_date) &&
5684 (!txn->cookie_last_date || (txn->cookie_last_date - date.tv_sec) < 0)) ||
5685 (s->be->cookie_maxlife && !txn->cookie_first_date) || // set the first_date
5686 (!s->be->cookie_maxlife && txn->cookie_first_date)) && // remove the first_date
5687 (!(s->be->ck_opts & PR_CK_POST) || (txn->meth == HTTP_METH_POST)) &&
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5688 !(s->flags & SF_IGNORE_PRST)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5689 /* the server is known, it's not the one the client requested, or the
5690 * cookie's last seen date needs to be refreshed. We have to
5691 * insert a set-cookie here, except if we want to insert only on POST
5692 * requests and this one isn't. Note that servers which don't have cookies
5693 * (eg: some backup servers) will return a full cookie removal request.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5694 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5695 if (!objt_server(s->target)->cookie) {
5696 chunk_printf(&trash,
5697 "Set-Cookie: %s=; Expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/",
5698 s->be->cookie_name);
5699 }
5700 else {
5701 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]5702
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5703 if (s->be->cookie_maxidle || s->be->cookie_maxlife) {
5704 /* emit last_date, which is mandatory */
5705 trash.str[trash.len++] = COOKIE_DELIM_DATE;
5706 s30tob64((date.tv_sec+3) >> 2, trash.str + trash.len);
5707 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5708
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5709 if (s->be->cookie_maxlife) {
5710 /* emit first_date, which is either the original one or
5711 * the current date.
5712 */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]5713 trash.str[trash.len++] = COOKIE_DELIM_DATE;
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5714 s30tob64(txn->cookie_first_date ?
5715 txn->cookie_first_date >> 2 :
5716 (date.tv_sec+3) >> 2, trash.str + trash.len);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]5717 trash.len += 5;
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5718 }
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5719 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5720 chunk_appendf(&trash, "; path=/");
5721 }
Willy Tarreau4992dd22012-05-31 21:02:17 +0200[diff] [blame]5722
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5723 if (s->be->cookie_domain)
5724 chunk_appendf(&trash, "; domain=%s", s->be->cookie_domain);
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]5725
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5726 if (s->be->ck_opts & PR_CK_HTTPONLY)
5727 chunk_appendf(&trash, "; HttpOnly");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5728
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5729 if (s->be->ck_opts & PR_CK_SECURE)
5730 chunk_appendf(&trash, "; Secure");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5731
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5732 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx, trash.str, trash.len) < 0))
5733 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5734
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5735 txn->flags &= ~TX_SCK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]5736 if (objt_server(s->target)->cookie && (s->flags & SF_DIRECT))
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5737 /* the server did not change, only the date was updated */
5738 txn->flags |= TX_SCK_UPDATED;
5739 else
5740 txn->flags |= TX_SCK_INSERTED;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5741
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5742 /* Here, we will tell an eventual cache on the client side that we don't
5743 * want it to cache this reply because HTTP/1.0 caches also cache cookies !
5744 * Some caches understand the correct form: 'no-cache="set-cookie"', but
5745 * others don't (eg: apache <= 1.3.26). So we use 'private' instead.
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5746 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5747 if ((s->be->ck_opts & PR_CK_NOC) && (txn->flags & TX_CACHEABLE)) {
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5748
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5749 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200[diff] [blame]5750
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5751 if (unlikely(http_header_add_tail2(&txn->rsp, &txn->hdr_idx,
5752 "Cache-control: private", 22) < 0))
5753 goto return_bad_resp;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5754 }
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5755 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5756
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5757 /*
5758 * Check if result will be cacheable with a cookie.
5759 * We'll block the response if security checks have caught
5760 * nasty things such as a cacheable cookie.
5761 */
5762 if (((txn->flags & (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) ==
5763 (TX_CACHEABLE | TX_CACHE_COOK | TX_SCK_PRESENT)) &&
5764 (s->be->options & PR_O_CHK_CACHE)) {
5765 /* we're in presence of a cacheable response containing
5766 * a set-cookie header. We'll block it as requested by
5767 * the 'checkcache' option, and send an alert.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5768 */
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5769 if (objt_server(s->target))
5770 objt_server(s->target)->counters.failed_secu++;
Willy Tarreau60466522010-01-18 19:08:45 +0100[diff] [blame]5771
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5772 s->be->be_counters.denied_resp++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5773 sess->fe->fe_counters.denied_resp++;
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200[diff] [blame]5774 if (sess->listener->counters)
5775 sess->listener->counters->denied_resp++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5776
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5777 Alert("Blocking cacheable cookie in response from instance %s, server %s.\n",
5778 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
5779 send_log(s->be, LOG_ALERT,
5780 "Blocking cacheable cookie in response from instance %s, server %s.\n",
5781 s->be->id, objt_server(s->target) ? objt_server(s->target)->id : "<dispatch>");
5782 goto return_srv_prx_502;
5783 }
Willy Tarreau03945942009-12-22 16:50:27 +0100[diff] [blame]5784
Willy Tarreau70730dd2014-04-24 18:06:27 +0200[diff] [blame]5785 skip_filters:
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5786 /*
5787 * Adjust "Connection: close" or "Connection: keep-alive" if needed.
5788 * If an "Upgrade" token is found, the header is left untouched in order
5789 * 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]5790 * if anything but "Upgrade" is present in the Connection header. We don't
5791 * want to touch any 101 response either since it's switching to another
5792 * protocol.
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5793 */
Willy Tarreauce730de2014-09-16 10:40:38 +0200[diff] [blame]5794 if ((txn->status != 101) && !(txn->flags & TX_HDR_CONN_UPG) &&
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5795 (((txn->flags & TX_CON_WANT_MSK) != TX_CON_WANT_TUN) ||
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5796 ((sess->fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL ||
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5797 (s->be->options & PR_O_HTTP_MODE) == PR_O_HTTP_PCL))) {
5798 unsigned int want_flags = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]5799
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5800 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
5801 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL) {
5802 /* we want a keep-alive response here. Keep-alive header
5803 * required if either side is not 1.1.
5804 */
5805 if (!(txn->req.flags & msg->flags & HTTP_MSGF_VER_11))
5806 want_flags |= TX_CON_KAL_SET;
5807 }
5808 else {
5809 /* we want a close response here. Close header required if
5810 * the server is 1.1, regardless of the client.
5811 */
5812 if (msg->flags & HTTP_MSGF_VER_11)
5813 want_flags |= TX_CON_CLO_SET;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5814 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5815
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5816 if (want_flags != (txn->flags & (TX_CON_CLO_SET|TX_CON_KAL_SET)))
5817 http_change_connection_header(txn, msg, want_flags);
5818 }
5819
5820 skip_header_mangling:
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]5821 /* Always enter in the body analyzer */
5822 rep->analysers &= ~AN_RES_FLT_XFER_DATA;
5823 rep->analysers |= AN_RES_HTTP_XFER_BODY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5824
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5825 /* if the user wants to log as soon as possible, without counting
5826 * bytes from the server, then this is the right moment. We have
5827 * to temporarily assign bytes_out to log what we currently have.
5828 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5829 if (!LIST_ISEMPTY(&sess->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau58975672014-04-24 21:13:57 +0200[diff] [blame]5830 s->logs.t_close = s->logs.t_data; /* to get a valid end date */
5831 s->logs.bytes_out = txn->rsp.eoh;
5832 s->do_log(s);
5833 s->logs.bytes_out = 0;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5834 }
Willy Tarreaue3fa6e52010-01-04 22:57:43 +0100[diff] [blame]5835 return 1;
Willy Tarreauf5483bf2008-08-14 18:35:40 +0200[diff] [blame]5836}
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]5837
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5838/* This function is an analyser which forwards response body (including chunk
5839 * sizes if any). It is called as soon as we must forward, even if we forward
5840 * zero byte. The only situation where it must not be called is when we're in
5841 * tunnel mode and we want to forward till the close. It's used both to forward
5842 * remaining data and to resync after end of body. It expects the msg_state to
5843 * 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]5844 * 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]5845 *
5846 * It is capable of compressing response data both in content-length mode and
5847 * in chunked mode. The state machines follows different flows depending on
5848 * whether content-length and chunked modes are used, since there are no
5849 * trailers in content-length :
5850 *
5851 * chk-mode cl-mode
5852 * ,----- BODY -----.
5853 * / \
5854 * V size > 0 V chk-mode
5855 * .--> SIZE -------------> DATA -------------> CRLF
5856 * | | size == 0 | last byte |
5857 * | v final crlf v inspected |
5858 * | TRAILERS -----------> DONE |
5859 * | |
5860 * `----------------------------------------------'
5861 *
5862 * Compression only happens in the DATA state, and must be flushed in final
5863 * states (TRAILERS/DONE) or when leaving on missing data. Normal forwarding
5864 * is performed at once on final states for all bytes parsed, or when leaving
5865 * on missing data.
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5866 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5867int http_response_forward_body(struct stream *s, struct channel *res, int an_bit)
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5868{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]5869 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]5870 struct http_txn *txn = s->txn;
5871 struct http_msg *msg = &s->txn->rsp;
Christopher Faulet3e344292015-11-24 16:24:13 +0100[diff] [blame]5872 int ret;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5873
Christopher Faulet814d2702017-03-30 11:33:44 +0200[diff] [blame]5874 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
5875 now_ms, __FUNCTION__,
5876 s,
5877 res,
5878 res->rex, res->wex,
5879 res->flags,
5880 res->buf->i,
5881 res->analysers);
5882
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5883 if (unlikely(msg->msg_state < HTTP_MSG_BODY))
5884 return 0;
5885
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5886 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]5887 ((res->flags & CF_SHUTW) && (res->to_forward || res->buf->o)) ||
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5888 !s->req.analysers) {
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]5889 /* Output closed while we were sending data. We must abort and
5890 * wake the other side up.
5891 */
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5892 msg->err_state = msg->msg_state;
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]5893 msg->msg_state = HTTP_MSG_ERROR;
5894 http_resync_states(s);
Willy Tarreau082b01c2010-01-02 23:58:04 +0100[diff] [blame]5895 return 1;
5896 }
5897
Willy Tarreau4fe41902010-06-07 22:27:41 +0200[diff] [blame]5898 /* in most states, we should abort in case of early close */
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5899 channel_auto_close(res);
Willy Tarreaub608feb2010-01-02 22:47:18 +0100[diff] [blame]5900
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5901 if (msg->msg_state == HTTP_MSG_BODY) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5902 msg->msg_state = ((msg->flags & HTTP_MSGF_TE_CHNK)
5903 ? HTTP_MSG_CHUNK_SIZE
5904 : HTTP_MSG_DATA);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5905 }
5906
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]5907 if (res->to_forward) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5908 /* We can't process the buffer's contents yet */
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]5909 res->flags |= CF_WAKE_WRITE;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5910 goto missing_data_or_waiting;
Willy Tarreauefdf0942014-04-24 20:08:57 +0200[diff] [blame]5911 }
5912
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5913 if (msg->msg_state < HTTP_MSG_DONE) {
5914 ret = ((msg->flags & HTTP_MSGF_TE_CHNK)
5915 ? http_msg_forward_chunked_body(s, msg)
5916 : http_msg_forward_body(s, msg));
5917 if (!ret)
5918 goto missing_data_or_waiting;
5919 if (ret < 0)
5920 goto return_bad_res;
5921 }
Christopher Fauletd7c91962015-04-30 11:48:27 +0200[diff] [blame]5922
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5923 /* other states, DONE...TUNNEL */
5924 /* for keep-alive we don't want to forward closes on DONE */
5925 if ((txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
5926 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
5927 channel_dont_close(res);
Willy Tarreau3ce10ff2014-04-22 08:24:38 +0200[diff] [blame]5928
Christopher Faulet894da4c2017-07-18 11:29:07 +0200[diff] [blame]5929 http_resync_states(s);
5930 if (!(res->analysers & an_bit)) {
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5931 if (unlikely(msg->msg_state == HTTP_MSG_ERROR)) {
5932 if (res->flags & CF_SHUTW) {
5933 /* response errors are most likely due to the
5934 * client aborting the transfer. */
5935 goto aborted_xfer;
Willy Tarreau5523b322009-12-29 12:05:52 +0100[diff] [blame]5936 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5937 if (msg->err_pos >= 0)
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]5938 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]5939 goto return_bad_res;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5940 }
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5941 return 1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5942 }
Willy Tarreauf51d03c2016-05-02 15:25:15 +0200[diff] [blame]5943 return 0;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5944
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5945 missing_data_or_waiting:
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5946 if (res->flags & CF_SHUTW)
5947 goto aborted_xfer;
5948
5949 /* stop waiting for data if the input is closed before the end. If the
5950 * client side was already closed, it means that the client has aborted,
5951 * so we don't want to count this as a server abort. Otherwise it's a
5952 * server abort.
5953 */
Christopher Fauleta33510b2017-03-31 15:37:29 +0200[diff] [blame]5954 if (msg->msg_state < HTTP_MSG_ENDING && res->flags & CF_SHUTR) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5955 if ((s->req.flags & (CF_SHUTR|CF_SHUTW)) == (CF_SHUTR|CF_SHUTW))
Willy Tarreauf003d372012-11-26 13:35:37 +0100[diff] [blame]5956 goto aborted_xfer;
Christopher Fauleta46bbd82015-06-19 09:00:58 +0200[diff] [blame]5957 /* If we have some pending data, we continue the processing */
5958 if (!buffer_pending(res->buf)) {
5959 if (!(s->flags & SF_ERR_MASK))
5960 s->flags |= SF_ERR_SRVCL;
5961 s->be->be_counters.srv_aborts++;
5962 if (objt_server(s->target))
5963 objt_server(s->target)->counters.srv_aborts++;
5964 goto return_bad_res_stats_ok;
5965 }
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]5966 }
Willy Tarreauf5c8bd62010-01-04 07:10:34 +0100[diff] [blame]5967
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]5968 /* we need to obey the req analyser, so if it leaves, we must too */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]5969 if (!s->req.analysers)
Willy Tarreau610ecce2010-01-04 21:15:02 +0100[diff] [blame]5970 goto return_bad_res;
5971
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]5972 /* When TE: chunked is used, we need to get there again to parse
5973 * remaining chunks even if the server has closed, so we don't want to
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]5974 * set CF_DONTCLOSE. Similarly, if keep-alive is set on the client side
5975 * or if there are filters registered on the stream, we don't want to
5976 * forward a close
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]5977 */
Christopher Faulet69744d92017-03-30 10:54:35 +0200[diff] [blame]5978 if ((msg->flags & HTTP_MSGF_TE_CHNK) ||
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]5979 HAS_DATA_FILTERS(s, res) ||
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]5980 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_KAL ||
5981 (txn->flags & TX_CON_WANT_MSK) == TX_CON_WANT_SCL)
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200[diff] [blame]5982 channel_dont_close(res);
Willy Tarreau92aa1fa2010-08-28 18:57:20 +0200[diff] [blame]5983
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5984 /* We know that more data are expected, but we couldn't send more that
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5985 * 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]5986 * system knows it must not set a PUSH on this first part. Interactive
Willy Tarreau869fc1e2012-03-05 08:29:20 +0100[diff] [blame]5987 * modes are already handled by the stream sock layer. We must not do
5988 * this in content-length mode because it could present the MSG_MORE
5989 * flag with the last block of forwarded data, which would cause an
5990 * additional delay to be observed by the receiver.
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5991 */
Christopher Faulet92d36382015-11-05 13:35:03 +0100[diff] [blame]5992 if ((msg->flags & HTTP_MSGF_TE_CHNK) || (msg->flags & HTTP_MSGF_COMPRESSING))
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200[diff] [blame]5993 res->flags |= CF_EXPECT_MORE;
Willy Tarreau5c620922011-05-11 19:56:11 +0200[diff] [blame]5994
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]5995 /* the stream handler will take care of timeouts and errors */
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]5996 return 0;
5997
Willy Tarreau40dba092010-03-04 18:14:51 +0100[diff] [blame]5998 return_bad_res: /* let's centralize all bad responses */
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++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6002
6003 return_bad_res_stats_ok:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6004 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6005 txn->rsp.msg_state = HTTP_MSG_ERROR;
Willy Tarreau148d0992010-01-10 10:21:21 +0100[diff] [blame]6006 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6007 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6008 res->analysers &= AN_RES_FLT_END;
6009 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]6010 if (objt_server(s->target))
6011 health_adjust(objt_server(s->target), HANA_STATUS_HTTP_HDRRSP);
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6012
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6013 if (!(s->flags & SF_ERR_MASK))
6014 s->flags |= SF_ERR_PRXCOND;
6015 if (!(s->flags & SF_FINST_MASK))
6016 s->flags |= SF_FINST_D;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6017 return 0;
6018
6019 aborted_xfer:
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]6020 txn->rsp.err_state = txn->rsp.msg_state;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6021 txn->rsp.msg_state = HTTP_MSG_ERROR;
6022 /* don't send any error message as we're in the body */
Christopher Fauleta94e5a52015-12-09 15:55:06 +0100[diff] [blame]6023 http_reply_and_close(s, txn->status, NULL);
Christopher Faulet0184ea72017-01-05 14:06:34 +0100[diff] [blame]6024 res->analysers &= AN_RES_FLT_END;
6025 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]6026
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6027 sess->fe->fe_counters.cli_aborts++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100[diff] [blame]6028 s->be->be_counters.cli_aborts++;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]6029 if (objt_server(s->target))
6030 objt_server(s->target)->counters.cli_aborts++;
Willy Tarreaued2fd2d2010-12-29 11:23:27 +0100[diff] [blame]6031
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6032 if (!(s->flags & SF_ERR_MASK))
6033 s->flags |= SF_ERR_CLICL;
6034 if (!(s->flags & SF_FINST_MASK))
6035 s->flags |= SF_FINST_D;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6036 return 0;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6037}
6038
6039
6040static inline int
6041http_msg_forward_body(struct stream *s, struct http_msg *msg)
6042{
6043 struct channel *chn = msg->chn;
6044 int ret;
6045
6046 /* Here we have the guarantee to be in HTTP_MSG_DATA or HTTP_MSG_ENDING state */
6047
6048 if (msg->msg_state == HTTP_MSG_ENDING)
6049 goto ending;
6050
6051 /* Neither content-length, nor transfer-encoding was found, so we must
6052 * read the body until the server connection is closed. In that case, we
6053 * eat data as they come. Of course, this happens for response only. */
6054 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6055 unsigned long long len = (chn->buf->i - msg->next);
6056 msg->chunk_len += len;
6057 msg->body_len += len;
6058 }
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6059 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6060 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6061 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6062 msg->next += ret;
6063 msg->chunk_len -= ret;
6064 if (msg->chunk_len) {
6065 /* input empty or output full */
6066 if (chn->buf->i > msg->next)
6067 chn->flags |= CF_WAKE_WRITE;
6068 goto missing_data_or_waiting;
6069 }
6070
Christopher Faulet1486b0a2017-07-18 11:42:08 +0200[diff] [blame]6071 /* This check can only be true for a response. HTTP_MSGF_XFER_LEN is
6072 * always set for a request. */
6073 if (!(msg->flags & HTTP_MSGF_XFER_LEN)) {
6074 /* The server still sending data that should be filtered */
6075 if (!(chn->flags & CF_SHUTR) && HAS_DATA_FILTERS(s, chn))
6076 goto missing_data_or_waiting;
6077 }
Christopher Fauletf1cc5d02017-02-08 09:45:13 +0100[diff] [blame]6078
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6079 msg->msg_state = HTTP_MSG_ENDING;
6080
6081 ending:
6082 /* we may have some pending data starting at res->buf->p such as a last
6083 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6084 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6085 /* default_ret */ msg->next,
6086 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6087 b_adv(chn->buf, ret);
6088 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6089 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6090 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6091 if (msg->next)
6092 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6093
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6094 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
6095 /* default_ret */ 1,
6096 /* on_error */ goto error,
6097 /* on_wait */ goto waiting);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6098 msg->msg_state = HTTP_MSG_DONE;
6099 return 1;
6100
6101 missing_data_or_waiting:
6102 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6103 ret = FLT_STRM_DATA_CB(s, chn, flt_http_forward_data(s, msg, msg->next),
6104 /* default_ret */ msg->next,
6105 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6106 b_adv(chn->buf, ret);
6107 msg->next -= ret;
6108 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6109 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6110 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6111 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6112 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6113 return 0;
6114 error:
6115 return -1;
6116}
6117
6118static inline int
6119http_msg_forward_chunked_body(struct stream *s, struct http_msg *msg)
6120{
6121 struct channel *chn = msg->chn;
6122 int ret;
6123
6124 /* Here we have the guarantee to be in one of the following state:
6125 * HTTP_MSG_DATA, HTTP_MSG_CHUNK_SIZE, HTTP_MSG_CHUNK_CRLF,
6126 * HTTP_MSG_TRAILERS or HTTP_MSG_ENDING. */
6127
6128 switch_states:
6129 switch (msg->msg_state) {
6130 case HTTP_MSG_DATA:
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6131 ret = FLT_STRM_DATA_CB(s, chn, flt_http_data(s, msg),
6132 /* default_ret */ MIN(msg->chunk_len, chn->buf->i - msg->next),
6133 /* on_error */ goto error);
6134 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6135 msg->chunk_len -= ret;
6136 if (msg->chunk_len) {
6137 /* input empty or output full */
6138 if (chn->buf->i > msg->next)
6139 chn->flags |= CF_WAKE_WRITE;
6140 goto missing_data_or_waiting;
6141 }
6142
6143 /* nothing left to forward for this chunk*/
6144 msg->msg_state = HTTP_MSG_CHUNK_CRLF;
6145 /* fall through for HTTP_MSG_CHUNK_CRLF */
6146
6147 case HTTP_MSG_CHUNK_CRLF:
6148 /* we want the CRLF after the data */
6149 ret = http_skip_chunk_crlf(msg);
6150 if (ret == 0)
6151 goto missing_data_or_waiting;
6152 if (ret < 0)
6153 goto chunk_parsing_error;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6154 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6155 msg->msg_state = HTTP_MSG_CHUNK_SIZE;
6156 /* fall through for HTTP_MSG_CHUNK_SIZE */
6157
6158 case HTTP_MSG_CHUNK_SIZE:
6159 /* read the chunk size and assign it to ->chunk_len,
6160 * then set ->next to point to the body and switch to
6161 * DATA or TRAILERS state.
6162 */
6163 ret = http_parse_chunk_size(msg);
6164 if (ret == 0)
6165 goto missing_data_or_waiting;
6166 if (ret < 0)
6167 goto chunk_parsing_error;
Christopher Faulet113f7de2015-12-14 14:52:13 +0100[diff] [blame]6168 msg->next += ret;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6169 if (msg->chunk_len) {
6170 msg->msg_state = HTTP_MSG_DATA;
6171 goto switch_states;
6172 }
6173 msg->msg_state = HTTP_MSG_TRAILERS;
6174 /* fall through for HTTP_MSG_TRAILERS */
6175
6176 case HTTP_MSG_TRAILERS:
6177 ret = http_forward_trailers(msg);
6178 if (ret < 0)
6179 goto chunk_parsing_error;
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6180 FLT_STRM_DATA_CB(s, chn, flt_http_chunk_trailers(s, msg),
6181 /* default_ret */ 1,
6182 /* on_error */ goto error);
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6183 msg->next += msg->sol;
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6184 if (!ret)
6185 goto missing_data_or_waiting;
6186 break;
6187
6188 case HTTP_MSG_ENDING:
6189 goto ending;
6190
6191 default:
6192 /* This should no happen in this function */
6193 goto error;
6194 }
6195
6196 msg->msg_state = HTTP_MSG_ENDING;
6197 ending:
6198 /* we may have some pending data starting at res->buf->p such as a last
6199 * chunk of data or trailers. */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6200 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]6201 /* default_ret */ msg->next,
6202 /* on_error */ goto error);
6203 b_adv(chn->buf, ret);
6204 msg->next -= ret;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6205 if (unlikely(!(chn->flags & CF_WROTE_DATA) || msg->sov > 0))
6206 msg->sov -= ret;
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6207 if (msg->next)
6208 goto waiting;
Willy Tarreau9962f8f2016-06-28 11:52:08 +0200[diff] [blame]6209
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6210 FLT_STRM_DATA_CB(s, chn, flt_http_end(s, msg),
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6211 /* default_ret */ 1,
6212 /* on_error */ goto error,
6213 /* on_wait */ goto waiting);
6214 msg->msg_state = HTTP_MSG_DONE;
6215 return 1;
6216
6217 missing_data_or_waiting:
6218 /* we may have some pending data starting at chn->buf->p */
Christopher Fauletda02e172015-12-04 09:25:05 +0100[diff] [blame]6219 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]6220 /* default_ret */ msg->next,
6221 /* on_error */ goto error);
6222 b_adv(chn->buf, ret);
6223 msg->next -= ret;
6224 if (!(chn->flags & CF_WROTE_DATA) || msg->sov > 0)
6225 msg->sov -= ret;
Christopher Faulet75e2eb62015-12-15 10:41:47 +0100[diff] [blame]6226 if (!HAS_DATA_FILTERS(s, chn))
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6227 msg->chunk_len -= channel_forward(chn, msg->chunk_len);
Christopher Fauleta9300a32016-06-28 15:54:44 +0200[diff] [blame]6228 waiting:
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6229 return 0;
6230
6231 chunk_parsing_error:
6232 if (msg->err_pos >= 0) {
6233 if (chn->flags & CF_ISRESP)
6234 http_capture_bad_message(&s->be->invalid_rep, s, msg,
6235 msg->msg_state, strm_fe(s));
6236 else
6237 http_capture_bad_message(&strm_fe(s)->invalid_req, s,
6238 msg, msg->msg_state, s->be);
6239 }
6240 error:
6241 return -1;
Willy Tarreaud98cf932009-12-27 22:54:55 +0100[diff] [blame]6242}
6243
Christopher Fauletdbe34eb2015-12-02 10:01:17 +0100[diff] [blame]6244
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6245/* Iterate the same filter through all request headers.
6246 * Returns 1 if this filter can be stopped upon return, otherwise 0.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6247 * Since it can manage the switch to another backend, it updates the per-proxy
6248 * DENY stats.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6249 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6250int 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]6251{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6252 char *cur_ptr, *cur_end, *cur_next;
6253 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6254 struct http_txn *txn = s->txn;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6255 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6256 int delta;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100[diff] [blame]6257
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6258 last_hdr = 0;
6259
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6260 cur_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6261 old_idx = 0;
6262
6263 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6264 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6265 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6266 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6267 (exp->action == ACT_ALLOW ||
6268 exp->action == ACT_DENY ||
6269 exp->action == ACT_TARPIT))
6270 return 0;
6271
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6272 cur_idx = txn->hdr_idx.v[old_idx].next;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6273 if (!cur_idx)
6274 break;
6275
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6276 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6277 cur_ptr = cur_next;
6278 cur_end = cur_ptr + cur_hdr->len;
6279 cur_next = cur_end + cur_hdr->cr + 1;
6280
6281 /* Now we have one header between cur_ptr and cur_end,
6282 * and the next header starts at cur_next.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6283 */
6284
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]6285 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]6286 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6287 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6288 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6289 last_hdr = 1;
6290 break;
6291
6292 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6293 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6294 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6295 break;
6296
6297 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6298 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6299 last_hdr = 1;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6300 break;
6301
6302 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6303 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
6304 if (trash.len < 0)
6305 return -1;
6306
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6307 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6308 /* FIXME: if the user adds a newline in the replacement, the
6309 * index will not be recalculated for now, and the new line
6310 * will not be counted as a new header.
6311 */
6312
6313 cur_end += delta;
6314 cur_next += delta;
6315 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6316 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6317 break;
6318
6319 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6320 delta = buffer_replace2(req->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6321 cur_next += delta;
6322
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6323 http_msg_move_end(&txn->req, delta);
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6324 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
6325 txn->hdr_idx.used--;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6326 cur_hdr->len = 0;
6327 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]6328 cur_idx = old_idx;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6329 break;
6330
6331 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6332 }
6333
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6334 /* keep the link from this header to next one in case of later
6335 * removal of next header.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6336 */
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6337 old_idx = cur_idx;
6338 }
6339 return 0;
6340}
6341
6342
6343/* Apply the filter to the request line.
6344 * Returns 0 if nothing has been done, 1 if the filter has been applied,
6345 * or -1 if a replacement resulted in an invalid request line.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6346 * Since it can manage the switch to another backend, it updates the per-proxy
6347 * DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6348 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6349int 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]6350{
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6351 char *cur_ptr, *cur_end;
6352 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6353 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6354 int delta;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6355
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6356 if (unlikely(txn->flags & (TX_CLDENY | TX_CLTARPIT)))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6357 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6358 else if (unlikely(txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6359 (exp->action == ACT_ALLOW ||
6360 exp->action == ACT_DENY ||
6361 exp->action == ACT_TARPIT))
6362 return 0;
6363 else if (exp->action == ACT_REMOVE)
6364 return 0;
6365
6366 done = 0;
6367
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6368 cur_ptr = req->buf->p;
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6369 cur_end = cur_ptr + txn->req.sl.rq.l;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6370
6371 /* Now we have the request line between cur_ptr and cur_end */
6372
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]6373 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]6374 switch (exp->action) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6375 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6376 txn->flags |= TX_CLALLOW;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6377 done = 1;
6378 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6379
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6380 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6381 txn->flags |= TX_CLDENY;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6382 done = 1;
6383 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6384
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6385 case ACT_TARPIT:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6386 txn->flags |= TX_CLTARPIT;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6387 done = 1;
6388 break;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6389
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6390 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]6391 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
6392 if (trash.len < 0)
6393 return -1;
6394
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6395 delta = buffer_replace2(req->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6396 /* FIXME: if the user adds a newline in the replacement, the
6397 * index will not be recalculated for now, and the new line
6398 * will not be counted as a new header.
6399 */
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6400
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6401 http_msg_move_end(&txn->req, delta);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6402 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]6403 cur_end = (char *)http_parse_reqline(&txn->req,
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6404 HTTP_MSG_RQMETH,
6405 cur_ptr, cur_end + 1,
6406 NULL, NULL);
6407 if (unlikely(!cur_end))
6408 return -1;
Willy Tarreaua496b602006-12-17 23:15:24 +0100[diff] [blame]6409
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6410 /* we have a full request and we know that we have either a CR
6411 * or an LF at <ptr>.
6412 */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6413 txn->meth = find_http_meth(cur_ptr, txn->req.sl.rq.m_l);
6414 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]6415 /* there is no point trying this regex on headers */
6416 return 1;
6417 }
6418 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6419 return done;
6420}
Willy Tarreau97de6242006-12-27 17:18:38 +0100[diff] [blame]6421
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6422
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6423
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6424/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6425 * 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]6426 * 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]6427 * unparsable request. Since it can manage the switch to another backend, it
6428 * updates the per-proxy DENY stats.
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6429 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6430int apply_filters_to_request(struct stream *s, struct channel *req, struct proxy *px)
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6431{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6432 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6433 struct http_txn *txn = s->txn;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6434 struct hdr_exp *exp;
6435
6436 for (exp = px->req_exp; exp; exp = exp->next) {
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6437 int ret;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6438
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6439 /*
6440 * The interleaving of transformations and verdicts
6441 * makes it difficult to decide to continue or stop
6442 * the evaluation.
6443 */
6444
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6445 if (txn->flags & (TX_CLDENY|TX_CLTARPIT))
6446 break;
6447
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]6448 if ((txn->flags & TX_CLALLOW) &&
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6449 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6450 exp->action == ACT_TARPIT || exp->action == ACT_PASS))
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6451 continue;
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6452
6453 /* if this filter had a condition, evaluate it now and skip to
6454 * next filter if the condition does not match.
6455 */
6456 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]6457 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]6458 ret = acl_pass(ret);
6459 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
6460 ret = !ret;
6461
6462 if (!ret)
6463 continue;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6464 }
6465
6466 /* Apply the filter to the request line. */
Willy Tarreau6c123b12010-01-28 20:22:06 +0100[diff] [blame]6467 ret = apply_filter_to_req_line(s, req, exp);
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6468 if (unlikely(ret < 0))
6469 return -1;
6470
6471 if (likely(ret == 0)) {
6472 /* The filter did not match the request, it can be
6473 * iterated through all headers.
6474 */
Willy Tarreau34d4c3c2015-01-30 20:58:58 +0100[diff] [blame]6475 if (unlikely(apply_filter_to_req_headers(s, req, exp) < 0))
6476 return -1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6477 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6478 }
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6479 return 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6480}
6481
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6482
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6483/* Find the end of a cookie value contained between <s> and <e>. It works the
6484 * same way as with headers above except that the semi-colon also ends a token.
6485 * See RFC2965 for more information. Note that it requires a valid header to
6486 * return a valid result.
6487 */
6488char *find_cookie_value_end(char *s, const char *e)
6489{
6490 int quoted, qdpair;
6491
6492 quoted = qdpair = 0;
6493 for (; s < e; s++) {
6494 if (qdpair) qdpair = 0;
6495 else if (quoted) {
6496 if (*s == '\\') qdpair = 1;
6497 else if (*s == '"') quoted = 0;
6498 }
6499 else if (*s == '"') quoted = 1;
6500 else if (*s == ',' || *s == ';') return s;
6501 }
6502 return s;
6503}
6504
6505/* Delete a value in a header between delimiters <from> and <next> in buffer
6506 * <buf>. The number of characters displaced is returned, and the pointer to
6507 * the first delimiter is updated if required. The function tries as much as
6508 * possible to respect the following principles :
6509 * - replace <from> delimiter by the <next> one unless <from> points to a
6510 * colon, in which case <next> is simply removed
6511 * - set exactly one space character after the new first delimiter, unless
6512 * there are not enough characters in the block being moved to do so.
6513 * - remove unneeded spaces before the previous delimiter and after the new
6514 * one.
6515 *
6516 * It is the caller's responsibility to ensure that :
6517 * - <from> points to a valid delimiter or the colon ;
6518 * - <next> points to a valid delimiter or the final CR/LF ;
6519 * - there are non-space chars before <from> ;
6520 * - there is a CR/LF at or after <next>.
6521 */
Willy Tarreauaf819352012-08-27 22:08:00 +0200[diff] [blame]6522int del_hdr_value(struct buffer *buf, char **from, char *next)
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6523{
6524 char *prev = *from;
6525
6526 if (*prev == ':') {
6527 /* We're removing the first value, preserve the colon and add a
6528 * space if possible.
6529 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6530 if (!HTTP_IS_CRLF(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6531 next++;
6532 prev++;
6533 if (prev < next)
6534 *prev++ = ' ';
6535
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6536 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6537 next++;
6538 } else {
6539 /* Remove useless spaces before the old delimiter. */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6540 while (HTTP_IS_SPHT(*(prev-1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6541 prev--;
6542 *from = prev;
6543
6544 /* copy the delimiter and if possible a space if we're
6545 * not at the end of the line.
6546 */
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6547 if (!HTTP_IS_CRLF(*next)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6548 *prev++ = *next++;
6549 if (prev + 1 < next)
6550 *prev++ = ' ';
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6551 while (HTTP_IS_SPHT(*next))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6552 next++;
6553 }
6554 }
6555 return buffer_replace2(buf, prev, next, NULL, 0);
6556}
6557
Cyril Bontébf47aeb2009-10-15 00:15:40 +0200[diff] [blame]6558/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]6559 * Manage client-side cookie. It can impact performance by about 2% so it is
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6560 * desirable to call it only when needed. This code is quite complex because
6561 * of the multiple very crappy and ambiguous syntaxes we have to support. it
6562 * highly recommended not to touch this part without a good reason !
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6563 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6564void manage_client_side_cookies(struct stream *s, struct channel *req)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6565{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6566 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6567 struct session *sess = s->sess;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6568 int preserve_hdr;
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]6569 int cur_idx, old_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6570 char *hdr_beg, *hdr_end, *hdr_next, *del_from;
6571 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6572
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6573 /* Iterate through the headers, we start with the start line. */
Willy Tarreau83969f42007-01-22 08:55:47 +0100[diff] [blame]6574 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6575 hdr_next = req->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6576
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6577 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6578 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6579 int val;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6580
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6581 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6582 hdr_beg = hdr_next;
6583 hdr_end = hdr_beg + cur_hdr->len;
6584 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6585
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6586 /* We have one full header between hdr_beg and hdr_end, and the
6587 * next header starts at hdr_next. We're only interested in
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6588 * "Cookie:" headers.
6589 */
6590
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6591 val = http_header_match2(hdr_beg, hdr_end, "Cookie", 6);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]6592 if (!val) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6593 old_idx = cur_idx;
6594 continue;
6595 }
6596
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6597 del_from = NULL; /* nothing to be deleted */
6598 preserve_hdr = 0; /* assume we may kill the whole header */
6599
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6600 /* Now look for cookies. Conforming to RFC2109, we have to support
6601 * attributes whose name begin with a '$', and associate them with
6602 * the right cookie, if we want to delete this cookie.
6603 * So there are 3 cases for each cookie read :
6604 * 1) it's a special attribute, beginning with a '$' : ignore it.
6605 * 2) it's a server id cookie that we *MAY* want to delete : save
6606 * some pointers on it (last semi-colon, beginning of cookie...)
6607 * 3) it's an application cookie : we *MAY* have to delete a previous
6608 * "special" cookie.
6609 * At the end of loop, if a "special" cookie remains, we may have to
6610 * remove it. If no application cookie persists in the header, we
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6611 * *MUST* delete it.
6612 *
6613 * Note: RFC2965 is unclear about the processing of spaces around
6614 * the equal sign in the ATTR=VALUE form. A careful inspection of
6615 * the RFC explicitly allows spaces before it, and not within the
6616 * tokens (attrs or values). An inspection of RFC2109 allows that
6617 * too but section 10.1.3 lets one think that spaces may be allowed
6618 * after the equal sign too, resulting in some (rare) buggy
6619 * implementations trying to do that. So let's do what servers do.
6620 * Latest ietf draft forbids spaces all around. Also, earlier RFCs
6621 * allowed quoted strings in values, with any possible character
6622 * after a backslash, including control chars and delimitors, which
6623 * causes parsing to become ambiguous. Browsers also allow spaces
6624 * within values even without quotes.
6625 *
6626 * We have to keep multiple pointers in order to support cookie
6627 * removal at the beginning, middle or end of header without
6628 * corrupting the header. All of these headers are valid :
6629 *
6630 * Cookie:NAME1=VALUE1;NAME2=VALUE2;NAME3=VALUE3\r\n
6631 * Cookie:NAME1=VALUE1;NAME2_ONLY ;NAME3=VALUE3\r\n
6632 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
6633 * | | | | | | | | |
6634 * | | | | | | | | hdr_end <--+
6635 * | | | | | | | +--> next
6636 * | | | | | | +----> val_end
6637 * | | | | | +-----------> val_beg
6638 * | | | | +--------------> equal
6639 * | | | +----------------> att_end
6640 * | | +---------------------> att_beg
6641 * | +--------------------------> prev
6642 * +--------------------------------> hdr_beg
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6643 */
6644
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6645 for (prev = hdr_beg + 6; prev < hdr_end; prev = next) {
6646 /* Iterate through all cookies on this line */
6647
6648 /* find att_beg */
6649 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6650 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6651 att_beg++;
6652
6653 /* find att_end : this is the first character after the last non
6654 * space before the equal. It may be equal to hdr_end.
6655 */
6656 equal = att_end = att_beg;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6657
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6658 while (equal < hdr_end) {
6659 if (*equal == '=' || *equal == ',' || *equal == ';')
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6660 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6661 if (HTTP_IS_SPHT(*equal++))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6662 continue;
6663 att_end = equal;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6664 }
6665
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6666 /* here, <equal> points to '=', a delimitor or the end. <att_end>
6667 * is between <att_beg> and <equal>, both may be identical.
6668 */
6669
6670 /* look for end of cookie if there is an equal sign */
6671 if (equal < hdr_end && *equal == '=') {
6672 /* look for the beginning of the value */
6673 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6674 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6675 val_beg++;
6676
6677 /* find the end of the value, respecting quotes */
6678 next = find_cookie_value_end(val_beg, hdr_end);
6679
6680 /* make val_end point to the first white space or delimitor after the value */
6681 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]6682 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6683 val_end--;
6684 } else {
6685 val_beg = val_end = next = equal;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6686 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6687
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6688 /* We have nothing to do with attributes beginning with '$'. However,
6689 * they will automatically be removed if a header before them is removed,
6690 * since they're supposed to be linked together.
6691 */
6692 if (*att_beg == '$')
6693 continue;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6694
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6695 /* Ignore cookies with no equal sign */
6696 if (equal == next) {
6697 /* This is not our cookie, so we must preserve it. But if we already
6698 * scheduled another cookie for removal, we cannot remove the
6699 * complete header, but we can remove the previous block itself.
6700 */
6701 preserve_hdr = 1;
6702 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6703 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6704 val_end += delta;
6705 next += delta;
6706 hdr_end += delta;
6707 hdr_next += delta;
6708 cur_hdr->len += delta;
6709 http_msg_move_end(&txn->req, delta);
6710 prev = del_from;
6711 del_from = NULL;
6712 }
6713 continue;
Willy Tarreau305ae852010-01-03 19:45:54 +0100[diff] [blame]6714 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6715
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6716 /* if there are spaces around the equal sign, we need to
6717 * strip them otherwise we'll get trouble for cookie captures,
6718 * or even for rewrites. Since this happens extremely rarely,
6719 * it does not hurt performance.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6720 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6721 if (unlikely(att_end != equal || val_beg > equal + 1)) {
6722 int stripped_before = 0;
6723 int stripped_after = 0;
6724
6725 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6726 stripped_before = buffer_replace2(req->buf, att_end, equal, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6727 equal += stripped_before;
6728 val_beg += stripped_before;
6729 }
6730
6731 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6732 stripped_after = buffer_replace2(req->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6733 val_beg += stripped_after;
6734 stripped_before += stripped_after;
6735 }
6736
6737 val_end += stripped_before;
6738 next += stripped_before;
6739 hdr_end += stripped_before;
6740 hdr_next += stripped_before;
6741 cur_hdr->len += stripped_before;
6742 http_msg_move_end(&txn->req, stripped_before);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6743 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6744 /* now everything is as on the diagram above */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6745
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6746 /* First, let's see if we want to capture this cookie. We check
6747 * that we don't already have a client side cookie, because we
6748 * can only capture one. Also as an optimisation, we ignore
6749 * cookies shorter than the declared name.
6750 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6751 if (sess->fe->capture_name != NULL && txn->cli_cookie == NULL &&
6752 (val_end - att_beg >= sess->fe->capture_namelen) &&
6753 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6754 int log_len = val_end - att_beg;
6755
6756 if ((txn->cli_cookie = pool_alloc2(pool2_capture)) == NULL) {
6757 Alert("HTTP logging : out of memory.\n");
6758 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]6759 if (log_len > sess->fe->capture_len)
6760 log_len = sess->fe->capture_len;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6761 memcpy(txn->cli_cookie, att_beg, log_len);
6762 txn->cli_cookie[log_len] = 0;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6763 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6764 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6765
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6766 /* Persistence cookies in passive, rewrite or insert mode have the
6767 * following form :
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6768 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6769 * Cookie: NAME=SRV[|<lastseen>[|<firstseen>]]
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6770 *
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6771 * For cookies in prefix mode, the form is :
6772 *
6773 * Cookie: NAME=SRV~VALUE
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6774 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6775 if ((att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
6776 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
6777 struct server *srv = s->be->srv;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6778 char *delim;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6779
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6780 /* if we're in cookie prefix mode, we'll search the delimitor so that we
6781 * have the server ID between val_beg and delim, and the original cookie between
6782 * delim+1 and val_end. Otherwise, delim==val_end :
6783 *
6784 * Cookie: NAME=SRV; # in all but prefix modes
6785 * Cookie: NAME=SRV~OPAQUE ; # in prefix mode
6786 * | || || | |+-> next
6787 * | || || | +--> val_end
6788 * | || || +---------> delim
6789 * | || |+------------> val_beg
6790 * | || +-------------> att_end = equal
6791 * | |+-----------------> att_beg
6792 * | +------------------> prev
6793 * +-------------------------> hdr_beg
6794 */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6795
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6796 if (s->be->ck_opts & PR_CK_PFX) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6797 for (delim = val_beg; delim < val_end; delim++)
6798 if (*delim == COOKIE_DELIM)
6799 break;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6800 } else {
6801 char *vbar1;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6802 delim = val_end;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6803 /* Now check if the cookie contains a date field, which would
6804 * appear after a vertical bar ('|') just after the server name
6805 * and before the delimiter.
6806 */
6807 vbar1 = memchr(val_beg, COOKIE_DELIM_DATE, val_end - val_beg);
6808 if (vbar1) {
6809 /* OK, so left of the bar is the server's cookie and
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6810 * right is the last seen date. It is a base64 encoded
6811 * 30-bit value representing the UNIX date since the
6812 * epoch in 4-second quantities.
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6813 */
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6814 int val;
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6815 delim = vbar1++;
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6816 if (val_end - vbar1 >= 5) {
6817 val = b64tos30(vbar1);
6818 if (val > 0)
6819 txn->cookie_last_date = val << 2;
6820 }
6821 /* look for a second vertical bar */
6822 vbar1 = memchr(vbar1, COOKIE_DELIM_DATE, val_end - vbar1);
6823 if (vbar1 && (val_end - vbar1 > 5)) {
6824 val = b64tos30(vbar1 + 1);
6825 if (val > 0)
6826 txn->cookie_first_date = val << 2;
6827 }
Willy Tarreaubca99692010-10-06 19:25:55 +0200[diff] [blame]6828 }
6829 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6830
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6831 /* if the cookie has an expiration date and the proxy wants to check
6832 * it, then we do that now. We first check if the cookie is too old,
6833 * then only if it has expired. We detect strict overflow because the
6834 * time resolution here is not great (4 seconds). Cookies with dates
6835 * in the future are ignored if their offset is beyond one day. This
6836 * allows an admin to fix timezone issues without expiring everyone
6837 * and at the same time avoids keeping unwanted side effects for too
6838 * long.
6839 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6840 if (txn->cookie_first_date && s->be->cookie_maxlife &&
6841 (((signed)(date.tv_sec - txn->cookie_first_date) > (signed)s->be->cookie_maxlife) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6842 ((signed)(txn->cookie_first_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6843 txn->flags &= ~TX_CK_MASK;
6844 txn->flags |= TX_CK_OLD;
6845 delim = val_beg; // let's pretend we have not found the cookie
6846 txn->cookie_first_date = 0;
6847 txn->cookie_last_date = 0;
6848 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6849 else if (txn->cookie_last_date && s->be->cookie_maxidle &&
6850 (((signed)(date.tv_sec - txn->cookie_last_date) > (signed)s->be->cookie_maxidle) ||
Willy Tarreauef4f3912010-10-07 21:00:29 +0200[diff] [blame]6851 ((signed)(txn->cookie_last_date - date.tv_sec) > 86400))) {
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6852 txn->flags &= ~TX_CK_MASK;
6853 txn->flags |= TX_CK_EXPIRED;
6854 delim = val_beg; // let's pretend we have not found the cookie
6855 txn->cookie_first_date = 0;
6856 txn->cookie_last_date = 0;
6857 }
6858
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6859 /* Here, we'll look for the first running server which supports the cookie.
6860 * This allows to share a same cookie between several servers, for example
6861 * to dedicate backup servers to specific servers only.
6862 * However, to prevent clients from sticking to cookie-less backup server
6863 * when they have incidentely learned an empty cookie, we simply ignore
6864 * empty cookies and mark them as invalid.
6865 * The same behaviour is applied when persistence must be ignored.
6866 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6867 if ((delim == val_beg) || (s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6868 srv = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6869
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6870 while (srv) {
6871 if (srv->cookie && (srv->cklen == delim - val_beg) &&
6872 !memcmp(val_beg, srv->cookie, delim - val_beg)) {
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]6873 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6874 (s->be->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6875 (s->flags & SF_FORCE_PRST)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6876 /* we found the server and we can use it */
6877 txn->flags &= ~TX_CK_MASK;
Emeric Brun52a91d32017-08-31 14:41:55 +0200[diff] [blame]6878 txn->flags |= (srv->cur_state != SRV_ST_STOPPED) ? TX_CK_VALID : TX_CK_DOWN;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6879 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6880 s->target = &srv->obj_type;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6881 break;
6882 } else {
6883 /* we found a server, but it's down,
6884 * mark it as such and go on in case
6885 * another one is available.
6886 */
6887 txn->flags &= ~TX_CK_MASK;
6888 txn->flags |= TX_CK_DOWN;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6889 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6890 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6891 srv = srv->next;
6892 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6893
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]6894 if (!srv && !(txn->flags & (TX_CK_DOWN|TX_CK_EXPIRED|TX_CK_OLD))) {
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]6895 /* no server matched this cookie or we deliberately skipped it */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6896 txn->flags &= ~TX_CK_MASK;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]6897 if ((s->flags & (SF_IGNORE_PRST | SF_ASSIGNED)))
Willy Tarreauc89ccb62012-04-05 21:18:22 +0200[diff] [blame]6898 txn->flags |= TX_CK_UNUSED;
6899 else
6900 txn->flags |= TX_CK_INVALID;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6901 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6902
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6903 /* depending on the cookie mode, we may have to either :
6904 * - delete the complete cookie if we're in insert+indirect mode, so that
6905 * the server never sees it ;
6906 * - remove the server id from the cookie value, and tag the cookie as an
6907 * application cookie so that it does not get accidentely removed later,
6908 * if we're in cookie prefix mode
6909 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6910 if ((s->be->ck_opts & PR_CK_PFX) && (delim != val_end)) {
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6911 int delta; /* negative */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6912
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6913 delta = buffer_replace2(req->buf, val_beg, delim + 1, NULL, 0);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6914 val_end += delta;
6915 next += delta;
6916 hdr_end += delta;
6917 hdr_next += delta;
6918 cur_hdr->len += delta;
6919 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6920
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6921 del_from = NULL;
6922 preserve_hdr = 1; /* we want to keep this cookie */
6923 }
6924 else if (del_from == NULL &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]6925 (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]6926 del_from = prev;
6927 }
6928 } else {
6929 /* This is not our cookie, so we must preserve it. But if we already
6930 * scheduled another cookie for removal, we cannot remove the
6931 * complete header, but we can remove the previous block itself.
6932 */
6933 preserve_hdr = 1;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6934
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6935 if (del_from != NULL) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6936 int delta = del_hdr_value(req->buf, &del_from, prev);
Willy Tarreaub8105542010-11-24 18:31:28 +0100[diff] [blame]6937 if (att_beg >= del_from)
6938 att_beg += delta;
6939 if (att_end >= del_from)
6940 att_end += delta;
6941 val_beg += delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6942 val_end += delta;
6943 next += delta;
6944 hdr_end += delta;
6945 hdr_next += delta;
6946 cur_hdr->len += delta;
6947 http_msg_move_end(&txn->req, delta);
6948 prev = del_from;
6949 del_from = NULL;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6950 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6951 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6952
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6953 /* continue with next cookie on this header line */
6954 att_beg = next;
6955 } /* for each cookie */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6956
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6957 /* There are no more cookies on this line.
6958 * We may still have one (or several) marked for deletion at the
6959 * end of the line. We must do this now in two ways :
6960 * - if some cookies must be preserved, we only delete from the
6961 * mark to the end of line ;
6962 * - if nothing needs to be preserved, simply delete the whole header
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6963 */
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6964 if (del_from) {
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6965 int delta;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6966 if (preserve_hdr) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6967 delta = del_hdr_value(req->buf, &del_from, hdr_end);
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6968 hdr_end = del_from;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6969 cur_hdr->len += delta;
6970 } else {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]6971 delta = buffer_replace2(req->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6972
6973 /* FIXME: this should be a separate function */
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100[diff] [blame]6974 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
6975 txn->hdr_idx.used--;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6976 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]6977 cur_idx = old_idx;
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6978 }
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6979 hdr_next += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]6980 http_msg_move_end(&txn->req, delta);
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6981 }
6982
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6983 /* check next header */
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6984 old_idx = cur_idx;
Willy Tarreaueb7b0a22010-08-31 16:45:02 +0200[diff] [blame]6985 }
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]6986}
6987
6988
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6989/* Iterate the same filter through all response headers contained in <rtr>.
6990 * Returns 1 if this filter can be stopped upon return, otherwise 0.
6991 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]6992int 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]6993{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6994 char *cur_ptr, *cur_end, *cur_next;
6995 int cur_idx, old_idx, last_hdr;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]6996 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6997 struct hdr_idx_elem *cur_hdr;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]6998 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]6999
7000 last_hdr = 0;
7001
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7002 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7003 old_idx = 0;
7004
7005 while (!last_hdr) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7006 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7007 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7008 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7009 (exp->action == ACT_ALLOW ||
7010 exp->action == ACT_DENY))
7011 return 0;
7012
7013 cur_idx = txn->hdr_idx.v[old_idx].next;
7014 if (!cur_idx)
7015 break;
7016
7017 cur_hdr = &txn->hdr_idx.v[cur_idx];
7018 cur_ptr = cur_next;
7019 cur_end = cur_ptr + cur_hdr->len;
7020 cur_next = cur_end + cur_hdr->cr + 1;
7021
7022 /* Now we have one header between cur_ptr and cur_end,
7023 * and the next header starts at cur_next.
7024 */
7025
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7026 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]7027 switch (exp->action) {
7028 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7029 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7030 last_hdr = 1;
7031 break;
7032
7033 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7034 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7035 last_hdr = 1;
7036 break;
7037
7038 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7039 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7040 if (trash.len < 0)
7041 return -1;
7042
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7043 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7044 /* FIXME: if the user adds a newline in the replacement, the
7045 * index will not be recalculated for now, and the new line
7046 * will not be counted as a new header.
7047 */
7048
7049 cur_end += delta;
7050 cur_next += delta;
7051 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7052 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7053 break;
7054
7055 case ACT_REMOVE:
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7056 delta = buffer_replace2(rtr->buf, cur_ptr, cur_next, NULL, 0);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7057 cur_next += delta;
7058
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7059 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7060 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7061 txn->hdr_idx.used--;
7062 cur_hdr->len = 0;
7063 cur_end = NULL; /* null-term has been rewritten */
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7064 cur_idx = old_idx;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7065 break;
7066
7067 }
7068 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7069
7070 /* keep the link from this header to next one in case of later
7071 * removal of next header.
7072 */
7073 old_idx = cur_idx;
7074 }
7075 return 0;
7076}
7077
7078
7079/* Apply the filter to the status line in the response buffer <rtr>.
7080 * Returns 0 if nothing has been done, 1 if the filter has been applied,
7081 * or -1 if a replacement resulted in an invalid status line.
7082 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7083int 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]7084{
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7085 char *cur_ptr, *cur_end;
7086 int done;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7087 struct http_txn *txn = s->txn;
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7088 int delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7089
7090
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7091 if (unlikely(txn->flags & TX_SVDENY))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7092 return 1;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7093 else if (unlikely(txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7094 (exp->action == ACT_ALLOW ||
7095 exp->action == ACT_DENY))
7096 return 0;
7097 else if (exp->action == ACT_REMOVE)
7098 return 0;
7099
7100 done = 0;
7101
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7102 cur_ptr = rtr->buf->p;
Willy Tarreau1ba0e5f2010-06-07 13:57:32 +0200[diff] [blame]7103 cur_end = cur_ptr + txn->rsp.sl.st.l;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7104
7105 /* Now we have the status line between cur_ptr and cur_end */
7106
Willy Tarreau15a53a42015-01-21 13:39:42 +0100[diff] [blame]7107 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]7108 switch (exp->action) {
7109 case ACT_ALLOW:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7110 txn->flags |= TX_SVALLOW;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7111 done = 1;
7112 break;
7113
7114 case ACT_DENY:
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7115 txn->flags |= TX_SVDENY;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7116 done = 1;
7117 break;
7118
7119 case ACT_REPLACE:
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7120 trash.len = exp_replace(trash.str, trash.size, cur_ptr, exp->replace, pmatch);
7121 if (trash.len < 0)
7122 return -1;
7123
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7124 delta = buffer_replace2(rtr->buf, cur_ptr, cur_end, trash.str, trash.len);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7125 /* FIXME: if the user adds a newline in the replacement, the
7126 * index will not be recalculated for now, and the new line
7127 * will not be counted as a new header.
7128 */
7129
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7130 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7131 cur_end += delta;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7132 cur_end = (char *)http_parse_stsline(&txn->rsp,
Willy Tarreau02785762007-04-03 14:45:44 +0200[diff] [blame]7133 HTTP_MSG_RPVER,
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7134 cur_ptr, cur_end + 1,
7135 NULL, NULL);
7136 if (unlikely(!cur_end))
7137 return -1;
7138
7139 /* we have a full respnse and we know that we have either a CR
7140 * or an LF at <ptr>.
7141 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7142 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]7143 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]7144 /* there is no point trying this regex on headers */
7145 return 1;
7146 }
7147 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7148 return done;
7149}
7150
7151
7152
7153/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7154 * 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]7155 * Returns 0 if everything is alright, or -1 in case a replacement lead to an
7156 * unparsable response.
7157 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7158int apply_filters_to_response(struct stream *s, struct channel *rtr, struct proxy *px)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7159{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7160 struct session *sess = s->sess;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7161 struct http_txn *txn = s->txn;
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7162 struct hdr_exp *exp;
7163
7164 for (exp = px->rsp_exp; exp; exp = exp->next) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7165 int ret;
7166
7167 /*
7168 * The interleaving of transformations and verdicts
7169 * makes it difficult to decide to continue or stop
7170 * the evaluation.
7171 */
7172
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7173 if (txn->flags & TX_SVDENY)
7174 break;
7175
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7176 if ((txn->flags & TX_SVALLOW) &&
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7177 (exp->action == ACT_ALLOW || exp->action == ACT_DENY ||
7178 exp->action == ACT_PASS)) {
7179 exp = exp->next;
7180 continue;
7181 }
7182
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7183 /* if this filter had a condition, evaluate it now and skip to
7184 * next filter if the condition does not match.
7185 */
7186 if (exp->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]7187 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]7188 ret = acl_pass(ret);
7189 if (((struct acl_cond *)exp->cond)->pol == ACL_COND_UNLESS)
7190 ret = !ret;
7191 if (!ret)
7192 continue;
7193 }
7194
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7195 /* Apply the filter to the status line. */
Willy Tarreaufdb563c2010-01-31 15:43:27 +0100[diff] [blame]7196 ret = apply_filter_to_sts_line(s, rtr, exp);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7197 if (unlikely(ret < 0))
7198 return -1;
7199
7200 if (likely(ret == 0)) {
7201 /* The filter did not match the response, it can be
7202 * iterated through all headers.
7203 */
Sasha Pachevc6002042014-05-26 12:33:48 -0600[diff] [blame]7204 if (unlikely(apply_filter_to_resp_headers(s, rtr, exp) < 0))
7205 return -1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7206 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7207 }
7208 return 0;
7209}
7210
7211
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7212/*
Willy Tarreau396d2c62007-11-04 19:30:00 +0100[diff] [blame]7213 * Manage server-side cookies. It can impact performance by about 2% so it is
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7214 * desirable to call it only when needed. This function is also used when we
7215 * just need to know if there is a cookie (eg: for check-cache).
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7216 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7217void manage_server_side_cookies(struct stream *s, struct channel *res)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7218{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7219 struct http_txn *txn = s->txn;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7220 struct session *sess = s->sess;
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7221 struct server *srv;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7222 int is_cookie2;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7223 int cur_idx, old_idx, delta;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7224 char *hdr_beg, *hdr_end, *hdr_next;
7225 char *prev, *att_beg, *att_end, *equal, *val_beg, *val_end, *next;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7226
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7227 /* Iterate through the headers.
7228 * we start with the start line.
7229 */
7230 old_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7231 hdr_next = res->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7232
7233 while ((cur_idx = txn->hdr_idx.v[old_idx].next)) {
7234 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7235 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7236
7237 cur_hdr = &txn->hdr_idx.v[cur_idx];
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7238 hdr_beg = hdr_next;
7239 hdr_end = hdr_beg + cur_hdr->len;
7240 hdr_next = hdr_end + cur_hdr->cr + 1;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7241
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7242 /* We have one full header between hdr_beg and hdr_end, and the
7243 * next header starts at hdr_next. We're only interested in
7244 * "Set-Cookie" and "Set-Cookie2" headers.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7245 */
7246
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7247 is_cookie2 = 0;
7248 prev = hdr_beg + 10;
7249 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie", 10);
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7250 if (!val) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7251 val = http_header_match2(hdr_beg, hdr_end, "Set-Cookie2", 11);
7252 if (!val) {
7253 old_idx = cur_idx;
7254 continue;
7255 }
7256 is_cookie2 = 1;
7257 prev = hdr_beg + 11;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7258 }
7259
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7260 /* OK, right now we know we have a Set-Cookie* at hdr_beg, and
7261 * <prev> points to the colon.
7262 */
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7263 txn->flags |= TX_SCK_PRESENT;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7264
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7265 /* Maybe we only wanted to see if there was a Set-Cookie (eg:
7266 * check-cache is enabled) and we are not interested in checking
7267 * them. Warning, the cookie capture is declared in the frontend.
Willy Tarreaufd39dda2008-10-17 12:01:58 +0200[diff] [blame]7268 */
Willy Tarreau53a09d52015-08-10 18:59:40 +0200[diff] [blame]7269 if (s->be->cookie_name == NULL && sess->fe->capture_name == NULL)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7270 return;
7271
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7272 /* OK so now we know we have to process this response cookie.
7273 * The format of the Set-Cookie header is slightly different
7274 * from the format of the Cookie header in that it does not
7275 * support the comma as a cookie delimiter (thus the header
7276 * cannot be folded) because the Expires attribute described in
7277 * the original Netscape's spec may contain an unquoted date
7278 * with a comma inside. We have to live with this because
7279 * many browsers don't support Max-Age and some browsers don't
7280 * support quoted strings. However the Set-Cookie2 header is
7281 * clean.
7282 *
7283 * We have to keep multiple pointers in order to support cookie
7284 * removal at the beginning, middle or end of header without
7285 * corrupting the header (in case of set-cookie2). A special
7286 * pointer, <scav> points to the beginning of the set-cookie-av
7287 * fields after the first semi-colon. The <next> pointer points
7288 * either to the end of line (set-cookie) or next unquoted comma
7289 * (set-cookie2). All of these headers are valid :
7290 *
7291 * Set-Cookie: NAME1 = VALUE 1 ; Secure; Path="/"\r\n
7292 * Set-Cookie:NAME=VALUE; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7293 * Set-Cookie: NAME = VALUE ; Secure; Expires=Thu, 01-Jan-1970 00:00:01 GMT\r\n
7294 * Set-Cookie2: NAME1 = VALUE 1 ; Max-Age=0, NAME2=VALUE2; Discard\r\n
7295 * | | | | | | | | | |
7296 * | | | | | | | | +-> next hdr_end <--+
7297 * | | | | | | | +------------> scav
7298 * | | | | | | +--------------> val_end
7299 * | | | | | +--------------------> val_beg
7300 * | | | | +----------------------> equal
7301 * | | | +------------------------> att_end
7302 * | | +----------------------------> att_beg
7303 * | +------------------------------> prev
7304 * +-----------------------------------------> hdr_beg
7305 */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7306
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7307 for (; prev < hdr_end; prev = next) {
7308 /* Iterate through all cookies on this line */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7309
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7310 /* find att_beg */
7311 att_beg = prev + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7312 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7313 att_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7314
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7315 /* find att_end : this is the first character after the last non
7316 * space before the equal. It may be equal to hdr_end.
7317 */
7318 equal = att_end = att_beg;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7319
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7320 while (equal < hdr_end) {
7321 if (*equal == '=' || *equal == ';' || (is_cookie2 && *equal == ','))
7322 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7323 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7324 continue;
7325 att_end = equal;
7326 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7327
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7328 /* here, <equal> points to '=', a delimitor or the end. <att_end>
7329 * is between <att_beg> and <equal>, both may be identical.
7330 */
7331
7332 /* look for end of cookie if there is an equal sign */
7333 if (equal < hdr_end && *equal == '=') {
7334 /* look for the beginning of the value */
7335 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7336 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7337 val_beg++;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7338
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7339 /* find the end of the value, respecting quotes */
7340 next = find_cookie_value_end(val_beg, hdr_end);
7341
7342 /* make val_end point to the first white space or delimitor after the value */
7343 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]7344 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7345 val_end--;
7346 } else {
7347 /* <equal> points to next comma, semi-colon or EOL */
7348 val_beg = val_end = next = equal;
7349 }
7350
7351 if (next < hdr_end) {
7352 /* Set-Cookie2 supports multiple cookies, and <next> points to
7353 * a colon or semi-colon before the end. So skip all attr-value
7354 * pairs and look for the next comma. For Set-Cookie, since
7355 * commas are permitted in values, skip to the end.
7356 */
7357 if (is_cookie2)
7358 next = find_hdr_value_end(next, hdr_end);
7359 else
7360 next = hdr_end;
7361 }
7362
7363 /* Now everything is as on the diagram above */
7364
7365 /* Ignore cookies with no equal sign */
7366 if (equal == val_end)
7367 continue;
7368
7369 /* If there are spaces around the equal sign, we need to
7370 * strip them otherwise we'll get trouble for cookie captures,
7371 * or even for rewrites. Since this happens extremely rarely,
7372 * it does not hurt performance.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7373 */
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7374 if (unlikely(att_end != equal || val_beg > equal + 1)) {
7375 int stripped_before = 0;
7376 int stripped_after = 0;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7377
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7378 if (att_end != equal) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7379 stripped_before = buffer_replace2(res->buf, att_end, equal, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7380 equal += stripped_before;
7381 val_beg += stripped_before;
7382 }
7383
7384 if (val_beg > equal + 1) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7385 stripped_after = buffer_replace2(res->buf, equal + 1, val_beg, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7386 val_beg += stripped_after;
7387 stripped_before += stripped_after;
7388 }
7389
7390 val_end += stripped_before;
7391 next += stripped_before;
7392 hdr_end += stripped_before;
7393 hdr_next += stripped_before;
7394 cur_hdr->len += stripped_before;
Willy Tarreau1fc1f452011-04-07 22:35:37 +0200[diff] [blame]7395 http_msg_move_end(&txn->rsp, stripped_before);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7396 }
7397
7398 /* First, let's see if we want to capture this cookie. We check
7399 * that we don't already have a server side cookie, because we
7400 * can only capture one. Also as an optimisation, we ignore
7401 * cookies shorter than the declared name.
7402 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7403 if (sess->fe->capture_name != NULL &&
Willy Tarreau3bac9ff2007-03-18 17:31:28 +0100[diff] [blame]7404 txn->srv_cookie == NULL &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7405 (val_end - att_beg >= sess->fe->capture_namelen) &&
7406 memcmp(att_beg, sess->fe->capture_name, sess->fe->capture_namelen) == 0) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7407 int log_len = val_end - att_beg;
Willy Tarreau086b3b42007-05-13 21:45:51 +0200[diff] [blame]7408 if ((txn->srv_cookie = pool_alloc2(pool2_capture)) == NULL) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7409 Alert("HTTP logging : out of memory.\n");
7410 }
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7411 else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7412 if (log_len > sess->fe->capture_len)
7413 log_len = sess->fe->capture_len;
Willy Tarreauf70fc752010-11-19 11:27:18 +0100[diff] [blame]7414 memcpy(txn->srv_cookie, att_beg, log_len);
7415 txn->srv_cookie[log_len] = 0;
7416 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7417 }
7418
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7419 srv = objt_server(s->target);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7420 /* now check if we need to process it for persistence */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7421 if (!(s->flags & SF_IGNORE_PRST) &&
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7422 (att_end - att_beg == s->be->cookie_len) && (s->be->cookie_name != NULL) &&
7423 (memcmp(att_beg, s->be->cookie_name, att_end - att_beg) == 0)) {
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7424 /* assume passive cookie by default */
7425 txn->flags &= ~TX_SCK_MASK;
7426 txn->flags |= TX_SCK_FOUND;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7427
7428 /* If the cookie is in insert mode on a known server, we'll delete
7429 * this occurrence because we'll insert another one later.
7430 * 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]7431 * a direct access.
7432 */
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7433 if (s->be->ck_opts & PR_CK_PSV) {
Willy Tarreauba4c5be2010-10-23 12:46:42 +0200[diff] [blame]7434 /* The "preserve" flag was set, we don't want to touch the
7435 * server's cookie.
7436 */
7437 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7438 else if ((srv && (s->be->ck_opts & PR_CK_INS)) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]7439 ((s->flags & SF_DIRECT) && (s->be->ck_opts & PR_CK_IND))) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7440 /* this cookie must be deleted */
7441 if (*prev == ':' && next == hdr_end) {
7442 /* whole header */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7443 delta = buffer_replace2(res->buf, hdr_beg, hdr_next, NULL, 0);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7444 txn->hdr_idx.v[old_idx].next = cur_hdr->next;
7445 txn->hdr_idx.used--;
7446 cur_hdr->len = 0;
Willy Tarreau26db59e2010-11-28 06:57:24 +0100[diff] [blame]7447 cur_idx = old_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7448 hdr_next += delta;
7449 http_msg_move_end(&txn->rsp, delta);
7450 /* note: while both invalid now, <next> and <hdr_end>
7451 * are still equal, so the for() will stop as expected.
7452 */
7453 } else {
7454 /* just remove the value */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7455 int delta = del_hdr_value(res->buf, &prev, next);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7456 next = prev;
7457 hdr_end += delta;
7458 hdr_next += delta;
7459 cur_hdr->len += delta;
7460 http_msg_move_end(&txn->rsp, delta);
7461 }
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7462 txn->flags &= ~TX_SCK_MASK;
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7463 txn->flags |= TX_SCK_DELETED;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7464 /* and go on with next cookie */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7465 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7466 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_RW)) {
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7467 /* replace bytes val_beg->val_end with the cookie name associated
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7468 * with this server since we know it.
7469 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7470 delta = buffer_replace2(res->buf, val_beg, val_end, srv->cookie, srv->cklen);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7471 next += delta;
7472 hdr_end += delta;
7473 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7474 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7475 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7476
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7477 txn->flags &= ~TX_SCK_MASK;
7478 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7479 }
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7480 else if (srv && srv->cookie && (s->be->ck_opts & PR_CK_PFX)) {
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7481 /* insert the cookie name associated with this server
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7482 * before existing cookie, and insert a delimiter between them..
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7483 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7484 delta = buffer_replace2(res->buf, val_beg, val_beg, srv->cookie, srv->cklen + 1);
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7485 next += delta;
7486 hdr_end += delta;
7487 hdr_next += delta;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7488 cur_hdr->len += delta;
Willy Tarreaufa355d42009-11-29 18:12:29 +0100[diff] [blame]7489 http_msg_move_end(&txn->rsp, delta);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7490
Willy Tarreau827aee92011-03-10 16:55:02 +0100[diff] [blame]7491 val_beg[srv->cklen] = COOKIE_DELIM;
Willy Tarreauf1348312010-10-07 15:54:11 +0200[diff] [blame]7492 txn->flags &= ~TX_SCK_MASK;
7493 txn->flags |= TX_SCK_REPLACED;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7494 }
7495 }
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7496 /* that's done for this cookie, check the next one on the same
7497 * line when next != hdr_end (only if is_cookie2).
7498 */
7499 }
7500 /* check next header */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7501 old_idx = cur_idx;
Willy Tarreau24581ba2010-08-31 22:39:35 +0200[diff] [blame]7502 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7503}
7504
7505
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7506/*
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7507 * Check if response is cacheable or not. Updates s->flags.
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7508 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7509void check_response_for_cacheability(struct stream *s, struct channel *rtr)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7510{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7511 struct http_txn *txn = s->txn;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7512 char *p1, *p2;
7513
7514 char *cur_ptr, *cur_end, *cur_next;
7515 int cur_idx;
7516
Willy Tarreau5df51872007-11-25 16:20:08 +0100[diff] [blame]7517 if (!(txn->flags & TX_CACHEABLE))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7518 return;
7519
7520 /* Iterate through the headers.
7521 * we start with the start line.
7522 */
7523 cur_idx = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7524 cur_next = rtr->buf->p + hdr_idx_first_pos(&txn->hdr_idx);
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7525
7526 while ((cur_idx = txn->hdr_idx.v[cur_idx].next)) {
7527 struct hdr_idx_elem *cur_hdr;
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7528 int val;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7529
7530 cur_hdr = &txn->hdr_idx.v[cur_idx];
7531 cur_ptr = cur_next;
7532 cur_end = cur_ptr + cur_hdr->len;
7533 cur_next = cur_end + cur_hdr->cr + 1;
7534
7535 /* We have one full header between cur_ptr and cur_end, and the
7536 * next header starts at cur_next. We're only interested in
7537 * "Cookie:" headers.
7538 */
7539
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7540 val = http_header_match2(cur_ptr, cur_end, "Pragma", 6);
7541 if (val) {
7542 if ((cur_end - (cur_ptr + val) >= 8) &&
7543 strncasecmp(cur_ptr + val, "no-cache", 8) == 0) {
7544 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
7545 return;
7546 }
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7547 }
7548
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7549 val = http_header_match2(cur_ptr, cur_end, "Cache-control", 13);
7550 if (!val)
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7551 continue;
7552
7553 /* OK, right now we know we have a cache-control header at cur_ptr */
7554
Willy Tarreauaa9dce32007-03-18 23:50:16 +0100[diff] [blame]7555 p1 = cur_ptr + val; /* first non-space char after 'cache-control:' */
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7556
7557 if (p1 >= cur_end) /* no more info */
7558 continue;
7559
7560 /* p1 is at the beginning of the value */
7561 p2 = p1;
7562
Willy Tarreau8f8e6452007-06-17 21:51:38 +0200[diff] [blame]7563 while (p2 < cur_end && *p2 != '=' && *p2 != ',' && !isspace((unsigned char)*p2))
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7564 p2++;
7565
7566 /* we have a complete value between p1 and p2 */
7567 if (p2 < cur_end && *p2 == '=') {
7568 /* we have something of the form no-cache="set-cookie" */
7569 if ((cur_end - p1 >= 21) &&
7570 strncasecmp(p1, "no-cache=\"set-cookie", 20) == 0
7571 && (p1[20] == '"' || p1[20] == ','))
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7572 txn->flags &= ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7573 continue;
7574 }
7575
7576 /* OK, so we know that either p2 points to the end of string or to a comma */
7577 if (((p2 - p1 == 7) && strncasecmp(p1, "private", 7) == 0) ||
Willy Tarreau5b15f902013-07-04 12:46:56 +0200[diff] [blame]7578 ((p2 - p1 == 8) && strncasecmp(p1, "no-cache", 8) == 0) ||
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7579 ((p2 - p1 == 8) && strncasecmp(p1, "no-store", 8) == 0) ||
7580 ((p2 - p1 == 9) && strncasecmp(p1, "max-age=0", 9) == 0) ||
7581 ((p2 - p1 == 10) && strncasecmp(p1, "s-maxage=0", 10) == 0)) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7582 txn->flags &= ~TX_CACHEABLE & ~TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7583 return;
7584 }
7585
7586 if ((p2 - p1 == 6) && strncasecmp(p1, "public", 6) == 0) {
Willy Tarreau3d300592007-03-18 18:34:41 +0100[diff] [blame]7587 txn->flags |= TX_CACHEABLE | TX_CACHE_COOK;
Willy Tarreaua15645d2007-03-18 16:22:39 +0100[diff] [blame]7588 continue;
7589 }
7590 }
7591}
7592
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7593
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7594/*
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7595 * 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]7596 * for the current backend.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7597 *
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7598 * 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]7599 * uri_auth field is valid.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7600 *
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7601 * Returns 1 if stats should be provided, otherwise 0.
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7602 */
Willy Tarreau295a8372011-03-10 11:25:07 +0100[diff] [blame]7603int stats_check_uri(struct stream_interface *si, struct http_txn *txn, struct proxy *backend)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7604{
7605 struct uri_auth *uri_auth = backend->uri_auth;
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]7606 struct http_msg *msg = &txn->req;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7607 const char *uri = msg->chn->buf->p+ msg->sl.rq.u;
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7608
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]7609 if (!uri_auth)
7610 return 0;
7611
Cyril Bonté70be45d2010-10-12 00:14:35 +0200[diff] [blame]7612 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]7613 return 0;
7614
Willy Tarreau8d5d7f22007-01-21 19:16:41 +0100[diff] [blame]7615 /* check URI size */
Willy Tarreau3a215be2012-03-09 21:39:51 +0100[diff] [blame]7616 if (uri_auth->uri_len > msg->sl.rq.u_l)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7617 return 0;
7618
Willy Tarreau414e9bb2013-11-23 00:30:38 +0100[diff] [blame]7619 if (memcmp(uri, uri_auth->uri_prefix, uri_auth->uri_len) != 0)
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7620 return 0;
7621
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7622 return 1;
7623}
7624
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7625/*
7626 * Capture a bad request or response and archive it in the proxy's structure.
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7627 * By default it tries to report the error position as msg->err_pos. However if
7628 * this one is not set, it will then report msg->next, which is the last known
7629 * parsing point. The function is able to deal with wrapping buffers. It always
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7630 * displays buffers as a contiguous area starting at buf->p.
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7631 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7632void http_capture_bad_message(struct error_snapshot *es, struct stream *s,
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]7633 struct http_msg *msg,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]7634 enum h1_state state, struct proxy *other_end)
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7635{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7636 struct session *sess = strm_sess(s);
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7637 struct channel *chn = msg->chn;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7638 int len1, len2;
Willy Tarreau8a0cef22012-03-09 13:39:23 +0100[diff] [blame]7639
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]7640 es->len = MIN(chn->buf->i, global.tune.bufsize);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7641 len1 = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7642 len1 = MIN(len1, es->len);
7643 len2 = es->len - len1; /* remaining data if buffer wraps */
7644
Willy Tarreauf3764b72016-03-31 13:45:10 +0200[diff] [blame]7645 if (!es->buf)
7646 es->buf = malloc(global.tune.bufsize);
7647
7648 if (es->buf) {
7649 memcpy(es->buf, chn->buf->p, len1);
7650 if (len2)
7651 memcpy(es->buf + len1, chn->buf->data, len2);
7652 }
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7653
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7654 if (msg->err_pos >= 0)
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7655 es->pos = msg->err_pos;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7656 else
Willy Tarreau69d8c5d2012-05-08 09:44:41 +0200[diff] [blame]7657 es->pos = msg->next;
Willy Tarreau81f2fb92010-12-12 13:09:08 +0100[diff] [blame]7658
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7659 es->when = date; // user-visible date
7660 es->sid = s->uniq_id;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]7661 es->srv = objt_server(s->target);
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7662 es->oe = other_end;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7663 if (objt_conn(sess->origin))
7664 es->src = __objt_conn(sess->origin)->addr.from;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]7665 else
7666 memset(&es->src, 0, sizeof(es->src));
7667
Willy Tarreau078272e2010-12-12 12:46:33 +0100[diff] [blame]7668 es->state = state;
Willy Tarreau10479e42010-12-12 14:00:34 +0100[diff] [blame]7669 es->ev_id = error_snapshot_id++;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7670 es->b_flags = chn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7671 es->s_flags = s->flags;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7672 es->t_flags = s->txn->flags;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7673 es->m_flags = msg->flags;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7674 es->b_out = chn->buf->o;
7675 es->b_wrap = chn->buf->data + chn->buf->size - chn->buf->p;
Willy Tarreaucdbdd522012-10-12 22:51:15 +0200[diff] [blame]7676 es->b_tot = chn->total;
Willy Tarreaud04b1bc2012-05-08 11:03:10 +0200[diff] [blame]7677 es->m_clen = msg->chunk_len;
7678 es->m_blen = msg->body_len;
Willy Tarreau4076a152009-04-02 15:18:36 +0200[diff] [blame]7679}
Willy Tarreaub2513902006-12-17 14:52:38 +0100[diff] [blame]7680
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7681/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
7682 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
7683 * performed over the whole headers. Otherwise it must contain a valid header
7684 * context, initialised with ctx->idx=0 for the first lookup in a series. If
7685 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
7686 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
7687 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7688 * -1. The value fetch stops at commas, so this function is suited for use with
7689 * list headers.
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7690 * The return value is 0 if nothing was found, or non-zero otherwise.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7691 */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]7692unsigned int http_get_hdr(const struct http_msg *msg, const char *hname, int hlen,
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7693 struct hdr_idx *idx, int occ,
7694 struct hdr_ctx *ctx, char **vptr, int *vlen)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7695{
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7696 struct hdr_ctx local_ctx;
7697 char *ptr_hist[MAX_HDR_HISTORY];
7698 int len_hist[MAX_HDR_HISTORY];
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7699 unsigned int hist_ptr;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7700 int found;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7701
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7702 if (!ctx) {
7703 local_ctx.idx = 0;
7704 ctx = &local_ctx;
7705 }
7706
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7707 if (occ >= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7708 /* search from the beginning */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7709 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7710 occ--;
7711 if (occ <= 0) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7712 *vptr = ctx->line + ctx->val;
7713 *vlen = ctx->vlen;
7714 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7715 }
7716 }
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7717 return 0;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7718 }
7719
7720 /* negative occurrence, we scan all the list then walk back */
7721 if (-occ > MAX_HDR_HISTORY)
7722 return 0;
7723
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7724 found = hist_ptr = 0;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]7725 while (http_find_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7726 ptr_hist[hist_ptr] = ctx->line + ctx->val;
7727 len_hist[hist_ptr] = ctx->vlen;
7728 if (++hist_ptr >= MAX_HDR_HISTORY)
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7729 hist_ptr = 0;
7730 found++;
7731 }
7732 if (-occ > found)
7733 return 0;
7734 /* 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]7735 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
7736 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
7737 * to remain in the 0..9 range.
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7738 */
Willy Tarreau67dad272013-06-12 22:27:44 +0200[diff] [blame]7739 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7740 if (hist_ptr >= MAX_HDR_HISTORY)
7741 hist_ptr -= MAX_HDR_HISTORY;
Willy Tarreau294c4732011-12-16 21:35:50 +0100[diff] [blame]7742 *vptr = ptr_hist[hist_ptr];
7743 *vlen = len_hist[hist_ptr];
7744 return 1;
Willy Tarreaubce70882009-09-07 11:51:47 +0200[diff] [blame]7745}
7746
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7747/* Return in <vptr> and <vlen> the pointer and length of occurrence <occ> of
7748 * header whose name is <hname> of length <hlen>. If <ctx> is null, lookup is
7749 * performed over the whole headers. Otherwise it must contain a valid header
7750 * context, initialised with ctx->idx=0 for the first lookup in a series. If
7751 * <occ> is positive or null, occurrence #occ from the beginning (or last ctx)
7752 * is returned. Occ #0 and #1 are equivalent. If <occ> is negative (and no less
7753 * than -MAX_HDR_HISTORY), the occurrence is counted from the last one which is
7754 * -1. This function differs from http_get_hdr() in that it only returns full
7755 * line header values and does not stop at commas.
7756 * The return value is 0 if nothing was found, or non-zero otherwise.
7757 */
7758unsigned int http_get_fhdr(const struct http_msg *msg, const char *hname, int hlen,
7759 struct hdr_idx *idx, int occ,
7760 struct hdr_ctx *ctx, char **vptr, int *vlen)
7761{
7762 struct hdr_ctx local_ctx;
7763 char *ptr_hist[MAX_HDR_HISTORY];
7764 int len_hist[MAX_HDR_HISTORY];
7765 unsigned int hist_ptr;
7766 int found;
7767
7768 if (!ctx) {
7769 local_ctx.idx = 0;
7770 ctx = &local_ctx;
7771 }
7772
7773 if (occ >= 0) {
7774 /* search from the beginning */
7775 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
7776 occ--;
7777 if (occ <= 0) {
7778 *vptr = ctx->line + ctx->val;
7779 *vlen = ctx->vlen;
7780 return 1;
7781 }
7782 }
7783 return 0;
7784 }
7785
7786 /* negative occurrence, we scan all the list then walk back */
7787 if (-occ > MAX_HDR_HISTORY)
7788 return 0;
7789
7790 found = hist_ptr = 0;
7791 while (http_find_full_header2(hname, hlen, msg->chn->buf->p, idx, ctx)) {
7792 ptr_hist[hist_ptr] = ctx->line + ctx->val;
7793 len_hist[hist_ptr] = ctx->vlen;
7794 if (++hist_ptr >= MAX_HDR_HISTORY)
7795 hist_ptr = 0;
7796 found++;
7797 }
7798 if (-occ > found)
7799 return 0;
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]7800
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7801 /* 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]7802 * find occurrence -occ. 0 <= hist_ptr < MAX_HDR_HISTORY, and we have
7803 * -10 <= occ <= -1. So we have to check [hist_ptr%MAX_HDR_HISTORY+occ]
7804 * to remain in the 0..9 range.
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7805 */
Nenad Merdanovic69ad4b92016-03-29 13:14:30 +0200[diff] [blame]7806 hist_ptr += occ + MAX_HDR_HISTORY;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]7807 if (hist_ptr >= MAX_HDR_HISTORY)
7808 hist_ptr -= MAX_HDR_HISTORY;
7809 *vptr = ptr_hist[hist_ptr];
7810 *vlen = len_hist[hist_ptr];
7811 return 1;
7812}
7813
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]7814/*
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]7815 * Print a debug line with a header. Always stop at the first CR or LF char,
7816 * so it is safe to pass it a full buffer if needed. If <err> is not NULL, an
7817 * arrow is printed after the line which contains the pointer.
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7818 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7819void debug_hdr(const char *dir, struct stream *s, const char *start, const char *end)
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7820{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7821 struct session *sess = strm_sess(s);
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7822 int max;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200[diff] [blame]7823
Willy Tarreauf1fd9dc2014-04-24 20:47:57 +0200[diff] [blame]7824 chunk_printf(&trash, "%08x:%s.%s[%04x:%04x]: ", s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]7825 dir,
Willy Tarreau585744b2017-08-24 14:31:19 +0200[diff] [blame]7826 objt_conn(sess->origin) ? (unsigned short)objt_conn(sess->origin)->handle.fd : -1,
7827 objt_conn(s->si[1].end) ? (unsigned short)objt_conn(s->si[1].end)->handle.fd : -1);
Willy Tarreaue92693a2012-09-24 21:13:39 +0200[diff] [blame]7828
7829 for (max = 0; start + max < end; max++)
7830 if (start[max] == '\r' || start[max] == '\n')
7831 break;
7832
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100[diff] [blame]7833 UBOUND(max, trash.size - trash.len - 3);
7834 trash.len += strlcpy2(trash.str + trash.len, start, max + 1);
7835 trash.str[trash.len++] = '\n';
Willy Tarreau89efaed2013-12-13 15:14:55 +0100[diff] [blame]7836 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]7837}
7838
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7839
7840/* Allocate a new HTTP transaction for stream <s> unless there is one already.
7841 * The hdr_idx is allocated as well. In case of allocation failure, everything
7842 * allocated is freed and NULL is returned. Otherwise the new transaction is
7843 * assigned to the stream and returned.
7844 */
7845struct http_txn *http_alloc_txn(struct stream *s)
7846{
7847 struct http_txn *txn = s->txn;
7848
7849 if (txn)
7850 return txn;
7851
7852 txn = pool_alloc2(pool2_http_txn);
7853 if (!txn)
7854 return txn;
7855
7856 txn->hdr_idx.size = global.tune.max_http_hdr;
7857 txn->hdr_idx.v = pool_alloc2(pool2_hdr_idx);
7858 if (!txn->hdr_idx.v) {
7859 pool_free2(pool2_http_txn, txn);
7860 return NULL;
7861 }
7862
7863 s->txn = txn;
7864 return txn;
7865}
7866
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]7867void http_txn_reset_req(struct http_txn *txn)
7868{
7869 txn->req.flags = 0;
7870 txn->req.sol = txn->req.eol = txn->req.eoh = 0; /* relative to the buffer */
7871 txn->req.next = 0;
7872 txn->req.chunk_len = 0LL;
7873 txn->req.body_len = 0LL;
7874 txn->req.msg_state = HTTP_MSG_RQBEFORE; /* at the very beginning of the request */
7875}
7876
7877void http_txn_reset_res(struct http_txn *txn)
7878{
7879 txn->rsp.flags = 0;
7880 txn->rsp.sol = txn->rsp.eol = txn->rsp.eoh = 0; /* relative to the buffer */
7881 txn->rsp.next = 0;
7882 txn->rsp.chunk_len = 0LL;
7883 txn->rsp.body_len = 0LL;
7884 txn->rsp.msg_state = HTTP_MSG_RPBEFORE; /* at the very beginning of the response */
7885}
7886
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7887/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7888 * Initialize a new HTTP transaction for stream <s>. It is assumed that all
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7889 * the required fields are properly allocated and that we only need to (re)init
7890 * them. This should be used before processing any new request.
7891 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7892void http_init_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7893{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7894 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]7895 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7896
7897 txn->flags = 0;
7898 txn->status = -1;
7899
Willy Tarreauf64d1412010-10-07 20:06:11 +0200[diff] [blame]7900 txn->cookie_first_date = 0;
7901 txn->cookie_last_date = 0;
7902
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7903 txn->srv_cookie = NULL;
7904 txn->cli_cookie = NULL;
7905 txn->uri = NULL;
7906
Thierry FOURNIERfd50f0b2015-09-25 18:53:18 +0200[diff] [blame]7907 http_txn_reset_req(txn);
7908 http_txn_reset_res(txn);
7909
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]7910 txn->req.chn = &s->req;
7911 txn->rsp.chn = &s->res;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]7912
7913 txn->auth.method = HTTP_AUTH_UNKNOWN;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7914
7915 txn->req.err_pos = txn->rsp.err_pos = -2; /* block buggy requests/responses */
7916 if (fe->options2 & PR_O2_REQBUG_OK)
7917 txn->req.err_pos = -1; /* let buggy requests pass */
7918
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7919 if (txn->hdr_idx.v)
7920 hdr_idx_init(&txn->hdr_idx);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200[diff] [blame]7921
7922 vars_init(&s->vars_txn, SCOPE_TXN);
7923 vars_init(&s->vars_reqres, SCOPE_REQ);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7924}
7925
7926/* to be used at the end of a transaction */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7927void http_end_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7928{
Willy Tarreaueee5b512015-04-03 23:46:31 +0200[diff] [blame]7929 struct http_txn *txn = s->txn;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]7930 struct proxy *fe = strm_fe(s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7931
7932 /* these ones will have been dynamically allocated */
7933 pool_free2(pool2_requri, txn->uri);
7934 pool_free2(pool2_capture, txn->cli_cookie);
7935 pool_free2(pool2_capture, txn->srv_cookie);
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]7936 pool_free2(pool2_uniqueid, s->unique_id);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]7937
William Lallemanda73203e2012-03-12 12:48:57 +0100[diff] [blame]7938 s->unique_id = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7939 txn->uri = NULL;
7940 txn->srv_cookie = NULL;
7941 txn->cli_cookie = NULL;
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]7942
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]7943 if (s->req_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]7944 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7945 for (h = fe->req_cap; h; h = h->next)
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]7946 pool_free2(h->pool, s->req_cap[h->index]);
7947 memset(s->req_cap, 0, fe->nb_req_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]7948 }
7949
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]7950 if (s->res_cap) {
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]7951 struct cap_hdr *h;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200[diff] [blame]7952 for (h = fe->rsp_cap; h; h = h->next)
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200[diff] [blame]7953 pool_free2(h->pool, s->res_cap[h->index]);
7954 memset(s->res_cap, 0, fe->nb_rsp_cap * sizeof(void *));
Willy Tarreau46023632010-01-07 22:51:47 +0100[diff] [blame]7955 }
7956
Willy Tarreau6204cd92016-03-10 16:33:04 +0100[diff] [blame]7957 vars_prune(&s->vars_txn, s->sess, s);
7958 vars_prune(&s->vars_reqres, s->sess, s);
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7959}
7960
7961/* to be used at the end of a transaction to prepare a new one */
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7962void http_reset_txn(struct stream *s)
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7963{
7964 http_end_txn(s);
7965 http_init_txn(s);
7966
Thierry FOURNIERbc4c1ac2015-02-25 13:36:14 +0100[diff] [blame]7967 /* reinitialise the current rule list pointer to NULL. We are sure that
7968 * any rulelist match the NULL pointer.
7969 */
7970 s->current_rule_list = NULL;
7971
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]7972 s->be = strm_fe(s);
7973 s->logs.logwait = strm_fe(s)->to_log;
Willy Tarreauabcd5142013-06-11 17:18:02 +0200[diff] [blame]7974 s->logs.level = 0;
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]7975 stream_del_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100[diff] [blame]7976 s->target = NULL;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]7977 /* re-init store persistence */
7978 s->store_count = 0;
Willy Tarreau1f0da242014-01-25 11:01:50 +0100[diff] [blame]7979 s->uniq_id = global.req_count++;
Emeric Brunb982a3d2010-01-04 15:45:53 +0100[diff] [blame]7980
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7981 s->pend_pos = NULL;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7982
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]7983 s->req.flags |= CF_READ_DONTWAIT; /* one read is usually enough */
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]7984
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]7985 /* We must trim any excess data from the response buffer, because we
7986 * may have blocked an invalid response from a server that we don't
7987 * want to accidentely forward once we disable the analysers, nor do
7988 * we want those data to come along with next response. A typical
7989 * example of such data would be from a buggy server responding to
7990 * a HEAD with some data, or sending more than the advertised
7991 * content-length.
7992 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]7993 if (unlikely(s->res.buf->i))
7994 s->res.buf->i = 0;
Willy Tarreau739cfba2010-01-25 23:11:14 +0100[diff] [blame]7995
Christopher Fauletc0c672a2017-03-28 11:51:33 +0200[diff] [blame]7996 /* Now we can realign the response buffer */
7997 buffer_realign(s->res.buf);
7998
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]7999 s->req.rto = strm_fe(s)->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8000 s->req.wto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8001
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8002 s->res.rto = TICK_ETERNITY;
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200[diff] [blame]8003 s->res.wto = strm_fe(s)->timeout.client;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8004
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]8005 s->req.rex = TICK_ETERNITY;
8006 s->req.wex = TICK_ETERNITY;
8007 s->req.analyse_exp = TICK_ETERNITY;
8008 s->res.rex = TICK_ETERNITY;
8009 s->res.wex = TICK_ETERNITY;
8010 s->res.analyse_exp = TICK_ETERNITY;
Hongbo Longe39683c2017-03-10 18:41:51 +0100[diff] [blame]8011 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreau0937bc42009-12-22 15:03:09 +0100[diff] [blame]8012}
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]8013
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8014void free_http_res_rules(struct list *r)
8015{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8016 struct act_rule *tr, *pr;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8017
8018 list_for_each_entry_safe(pr, tr, r, list) {
8019 LIST_DEL(&pr->list);
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8020 regex_free(&pr->arg.hdr_add.re);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8021 free(pr);
8022 }
8023}
8024
8025void free_http_req_rules(struct list *r)
8026{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8027 struct act_rule *tr, *pr;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8028
8029 list_for_each_entry_safe(pr, tr, r, list) {
8030 LIST_DEL(&pr->list);
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8031 if (pr->action == ACT_HTTP_REQ_AUTH)
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8032 free(pr->arg.auth.realm);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8033
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8034 regex_free(&pr->arg.hdr_add.re);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8035 free(pr);
8036 }
8037}
8038
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8039/* parse an "http-request" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8040struct 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]8041{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8042 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8043 struct action_kw *custom = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8044 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8045 char *error;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8046
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]8047 rule = calloc(1, sizeof(*rule));
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8048 if (!rule) {
8049 Alert("parsing [%s:%d]: out of memory.\n", file, linenum);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8050 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8051 }
8052
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8053 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8054 rule->action = ACT_ACTION_ALLOW;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8055 cur_arg = 1;
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8056 } else if (!strcmp(args[0], "deny") || !strcmp(args[0], "block") || !strcmp(args[0], "tarpit")) {
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8057 int code;
8058 int hc;
8059
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8060 if (!strcmp(args[0], "tarpit")) {
8061 rule->action = ACT_HTTP_REQ_TARPIT;
8062 rule->deny_status = HTTP_ERR_500;
8063 }
8064 else {
8065 rule->action = ACT_ACTION_DENY;
8066 rule->deny_status = HTTP_ERR_403;
8067 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8068 cur_arg = 1;
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8069 if (strcmp(args[cur_arg], "deny_status") == 0) {
8070 cur_arg++;
8071 if (!args[cur_arg]) {
8072 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing status code.\n",
8073 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
8074 goto out_err;
8075 }
8076
8077 code = atol(args[cur_arg]);
8078 cur_arg++;
8079 for (hc = 0; hc < HTTP_ERR_SIZE; hc++) {
8080 if (http_err_codes[hc] == code) {
8081 rule->deny_status = hc;
8082 break;
8083 }
8084 }
8085
8086 if (hc >= HTTP_ERR_SIZE) {
Jarno Huuskonen800d1762017-03-06 14:56:36 +0200[diff] [blame]8087 Warning("parsing [%s:%d] : status code %d not handled, using default code %d.\n",
8088 file, linenum, code, http_err_codes[rule->deny_status]);
CJ Ess108b1dd2015-04-07 12:03:37 -0400[diff] [blame]8089 }
8090 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8091 } else if (!strcmp(args[0], "auth")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8092 rule->action = ACT_HTTP_REQ_AUTH;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8093 cur_arg = 1;
8094
8095 while(*args[cur_arg]) {
8096 if (!strcmp(args[cur_arg], "realm")) {
Willy Tarreau5c2e1982012-12-24 12:00:25 +0100[diff] [blame]8097 rule->arg.auth.realm = strdup(args[cur_arg + 1]);
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8098 cur_arg+=2;
8099 continue;
8100 } else
8101 break;
8102 }
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8103 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8104 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8105 cur_arg = 1;
8106
8107 if (!*args[cur_arg] ||
8108 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8109 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer value).\n",
8110 file, linenum, args[0]);
8111 goto out_err;
8112 }
8113 rule->arg.nice = atoi(args[cur_arg]);
8114 if (rule->arg.nice < -1024)
8115 rule->arg.nice = -1024;
8116 else if (rule->arg.nice > 1024)
8117 rule->arg.nice = 1024;
8118 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8119 } else if (!strcmp(args[0], "set-tos")) {
8120#ifdef IP_TOS
8121 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8122 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8123 cur_arg = 1;
8124
8125 if (!*args[cur_arg] ||
8126 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8127 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8128 file, linenum, args[0]);
8129 goto out_err;
8130 }
8131
8132 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8133 if (err && *err != '\0') {
8134 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8135 file, linenum, err, args[0]);
8136 goto out_err;
8137 }
8138 cur_arg++;
8139#else
8140 Alert("parsing [%s:%d]: 'http-request %s' is not supported on this platform (IP_TOS undefined).\n", file, linenum, args[0]);
8141 goto out_err;
8142#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8143 } else if (!strcmp(args[0], "set-mark")) {
8144#ifdef SO_MARK
8145 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8146 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8147 cur_arg = 1;
8148
8149 if (!*args[cur_arg] ||
8150 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8151 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (integer/hex value).\n",
8152 file, linenum, args[0]);
8153 goto out_err;
8154 }
8155
8156 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8157 if (err && *err != '\0') {
8158 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-request %s' (integer/hex value expected).\n",
8159 file, linenum, err, args[0]);
8160 goto out_err;
8161 }
8162 cur_arg++;
8163 global.last_checks |= LSTCHK_NETADM;
8164#else
8165 Alert("parsing [%s:%d]: 'http-request %s' is not supported on this platform (SO_MARK undefined).\n", file, linenum, args[0]);
8166 goto out_err;
8167#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8168 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8169 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8170 cur_arg = 1;
8171
8172 if (!*args[cur_arg] ||
8173 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8174 bad_log_level:
8175 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument (log level name or 'silent').\n",
8176 file, linenum, args[0]);
8177 goto out_err;
8178 }
8179 if (strcmp(args[cur_arg], "silent") == 0)
8180 rule->arg.loglevel = -1;
8181 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
8182 goto bad_log_level;
8183 cur_arg++;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8184 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8185 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8186 cur_arg = 1;
8187
Willy Tarreau8d1c5162013-04-03 14:13:58 +0200[diff] [blame]8188 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8189 (*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]8190 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8191 file, linenum, args[0]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8192 goto out_err;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8193 }
8194
8195 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8196 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8197 LIST_INIT(&rule->arg.hdr_add.fmt);
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]8198
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8199 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8200 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8201 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]8202 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8203 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8204 file, linenum, args[0], error);
8205 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8206 goto out_err;
8207 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8208 free(proxy->conf.lfs_file);
8209 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8210 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreau20b0de52012-12-24 15:45:22 +0100[diff] [blame]8211 cur_arg += 2;
Willy Tarreaub8543922014-06-17 18:58:26 +0200[diff] [blame]8212 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8213 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8214 cur_arg = 1;
8215
8216 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann92df3702014-06-24 11:10:00 +0200[diff] [blame]8217 (*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]8218 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 3 arguments.\n",
8219 file, linenum, args[0]);
8220 goto out_err;
8221 }
8222
8223 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8224 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8225 LIST_INIT(&rule->arg.hdr_add.fmt);
8226
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8227 error = NULL;
8228 if (!regex_comp(args[cur_arg + 1], &rule->arg.hdr_add.re, 1, 1, &error)) {
8229 Alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8230 args[cur_arg + 1], error);
8231 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8232 goto out_err;
8233 }
8234
8235 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8236 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8237 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]8238 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8239 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8240 file, linenum, args[0], error);
8241 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8242 goto out_err;
8243 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8244
8245 free(proxy->conf.lfs_file);
8246 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8247 proxy->conf.lfs_line = proxy->conf.args.line;
8248 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8249 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8250 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8251 cur_arg = 1;
8252
8253 if (!*args[cur_arg] ||
8254 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8255 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8256 file, linenum, args[0]);
8257 goto out_err;
8258 }
8259
8260 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8261 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8262
8263 proxy->conf.args.ctx = ARGC_HRQ;
8264 free(proxy->conf.lfs_file);
8265 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8266 proxy->conf.lfs_line = proxy->conf.args.line;
8267 cur_arg += 1;
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8268 } else if (strncmp(args[0], "track-sc", 8) == 0 &&
8269 args[0][9] == '\0' && args[0][8] >= '0' &&
Willy Tarreaue1cfc1f2014-10-17 11:53:05 +0200[diff] [blame]8270 args[0][8] < '0' + MAX_SESS_STKCTR) { /* track-sc 0..9 */
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8271 struct sample_expr *expr;
8272 unsigned int where;
8273 char *err = NULL;
8274
8275 cur_arg = 1;
8276 proxy->conf.args.ctx = ARGC_TRK;
8277
8278 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
8279 if (!expr) {
8280 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8281 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
8282 free(err);
8283 goto out_err;
8284 }
8285
8286 where = 0;
8287 if (proxy->cap & PR_CAP_FE)
8288 where |= SMP_VAL_FE_HRQ_HDR;
8289 if (proxy->cap & PR_CAP_BE)
8290 where |= SMP_VAL_BE_HRQ_HDR;
8291
8292 if (!(expr->fetch->val & where)) {
8293 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule :"
8294 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
8295 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
8296 args[cur_arg-1], sample_src_names(expr->fetch->use));
8297 free(expr);
8298 goto out_err;
8299 }
8300
8301 if (strcmp(args[cur_arg], "table") == 0) {
8302 cur_arg++;
8303 if (!args[cur_arg]) {
8304 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : missing table name.\n",
8305 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
8306 free(expr);
8307 goto out_err;
8308 }
8309 /* we copy the table name for now, it will be resolved later */
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8310 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
Willy Tarreau09448f72014-06-25 18:12:15 +0200[diff] [blame]8311 cur_arg++;
8312 }
Thierry FOURNIER5ec63e02015-08-04 09:09:48 +0200[diff] [blame]8313 rule->arg.trk_ctr.expr = expr;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8314 rule->action = ACT_ACTION_TRK_SC0 + args[0][8] - '0';
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8315 } else if (strcmp(args[0], "redirect") == 0) {
8316 struct redirect_rule *redir;
Willy Tarreau6d4890c2013-11-18 18:04:25 +0100[diff] [blame]8317 char *errmsg = NULL;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8318
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]8319 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]8320 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8321 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
8322 goto out_err;
8323 }
8324
8325 /* this redirect rule might already contain a parsed condition which
8326 * we'll pass to the http-request rule.
8327 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8328 rule->action = ACT_HTTP_REDIR;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8329 rule->arg.redir = redir;
8330 rule->cond = redir->cond;
8331 redir->cond = NULL;
8332 cur_arg = 2;
8333 return rule;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8334 } else if (strncmp(args[0], "add-acl", 7) == 0) {
8335 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8336 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8337 /*
8338 * '+ 8' for 'add-acl('
8339 * '- 9' for 'add-acl(' + trailing ')'
8340 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8341 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8342
8343 cur_arg = 1;
8344
8345 if (!*args[cur_arg] ||
8346 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8347 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8348 file, linenum, args[0]);
8349 goto out_err;
8350 }
8351
8352 LIST_INIT(&rule->arg.map.key);
8353 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8354 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8355 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]8356 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8357 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8358 file, linenum, args[0], error);
8359 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8360 goto out_err;
8361 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8362 free(proxy->conf.lfs_file);
8363 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8364 proxy->conf.lfs_line = proxy->conf.args.line;
8365 cur_arg += 1;
8366 } else if (strncmp(args[0], "del-acl", 7) == 0) {
8367 /* http-request del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8368 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8369 /*
8370 * '+ 8' for 'del-acl('
8371 * '- 9' for 'del-acl(' + trailing ')'
8372 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8373 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8374
8375 cur_arg = 1;
8376
8377 if (!*args[cur_arg] ||
8378 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8379 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8380 file, linenum, args[0]);
8381 goto out_err;
8382 }
8383
8384 LIST_INIT(&rule->arg.map.key);
8385 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8386 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8387 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]8388 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8389 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8390 file, linenum, args[0], error);
8391 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8392 goto out_err;
8393 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8394 free(proxy->conf.lfs_file);
8395 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8396 proxy->conf.lfs_line = proxy->conf.args.line;
8397 cur_arg += 1;
8398 } else if (strncmp(args[0], "del-map", 7) == 0) {
8399 /* http-request del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8400 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8401 /*
8402 * '+ 8' for 'del-map('
8403 * '- 9' for 'del-map(' + trailing ')'
8404 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8405 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8406
8407 cur_arg = 1;
8408
8409 if (!*args[cur_arg] ||
8410 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8411 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 1 argument.\n",
8412 file, linenum, args[0]);
8413 goto out_err;
8414 }
8415
8416 LIST_INIT(&rule->arg.map.key);
8417 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8418 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8419 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]8420 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8421 Alert("parsing [%s:%d]: 'http-request %s': %s.\n",
8422 file, linenum, args[0], error);
8423 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8424 goto out_err;
8425 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8426 free(proxy->conf.lfs_file);
8427 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8428 proxy->conf.lfs_line = proxy->conf.args.line;
8429 cur_arg += 1;
8430 } else if (strncmp(args[0], "set-map", 7) == 0) {
8431 /* http-request set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8432 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8433 /*
8434 * '+ 8' for 'set-map('
8435 * '- 9' for 'set-map(' + trailing ')'
8436 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8437 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8438
8439 cur_arg = 1;
8440
8441 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8442 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
8443 Alert("parsing [%s:%d]: 'http-request %s' expects exactly 2 arguments.\n",
8444 file, linenum, args[0]);
8445 goto out_err;
8446 }
8447
8448 LIST_INIT(&rule->arg.map.key);
8449 LIST_INIT(&rule->arg.map.value);
8450 proxy->conf.args.ctx = ARGC_HRQ;
8451
8452 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8453 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8454 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]8455 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8456 Alert("parsing [%s:%d]: 'http-request %s' key: %s.\n",
8457 file, linenum, args[0], error);
8458 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8459 goto out_err;
8460 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8461
8462 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8463 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8464 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]8465 (proxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, &error)) {
8466 Alert("parsing [%s:%d]: 'http-request %s' pattern: %s.\n",
8467 file, linenum, args[0], error);
8468 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8469 goto out_err;
8470 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8471 free(proxy->conf.lfs_file);
8472 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8473 proxy->conf.lfs_line = proxy->conf.args.line;
8474
8475 cur_arg += 2;
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8476 } else if (((custom = action_http_req_custom(args[0])) != NULL)) {
8477 char *errmsg = NULL;
8478 cur_arg = 1;
8479 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]8480 rule->from = ACT_F_HTTP_REQ;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]8481 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]8482 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8483 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-request %s' rule : %s.\n",
8484 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
8485 free(errmsg);
8486 goto out_err;
8487 }
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8488 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]8489 action_build_list(&http_req_keywords.list, &trash);
8490 Alert("parsing [%s:%d]: 'http-request' expects 'allow', 'deny', 'auth', 'redirect', "
8491 "'tarpit', 'add-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]8492 "'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]8493 "%s%s, but got '%s'%s.\n",
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]8494 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8495 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8496 }
8497
8498 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
8499 struct acl_cond *cond;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]8500 char *errmsg = NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8501
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]8502 if ((cond = build_acl_cond(file, linenum, proxy, args+cur_arg, &errmsg)) == NULL) {
8503 Alert("parsing [%s:%d] : error detected while parsing an 'http-request %s' condition : %s.\n",
8504 file, linenum, args[0], errmsg);
8505 free(errmsg);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8506 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8507 }
8508 rule->cond = cond;
8509 }
8510 else if (*args[cur_arg]) {
8511 Alert("parsing [%s:%d]: 'http-request %s' expects 'realm' for 'auth' or"
8512 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
8513 file, linenum, args[0], args[cur_arg]);
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8514 goto out_err;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8515 }
8516
8517 return rule;
Willy Tarreau81499eb2012-12-27 12:19:02 +0100[diff] [blame]8518 out_err:
8519 free(rule);
8520 return NULL;
Willy Tarreauff011f22011-01-06 17:51:27 +0100[diff] [blame]8521}
8522
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8523/* parse an "http-respose" rule */
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8524struct 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]8525{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +0200[diff] [blame]8526 struct act_rule *rule;
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]8527 struct action_kw *custom = NULL;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8528 int cur_arg;
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8529 char *error;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8530
8531 rule = calloc(1, sizeof(*rule));
8532 if (!rule) {
8533 Alert("parsing [%s:%d]: out of memory.\n", file, linenum);
8534 goto out_err;
8535 }
8536
8537 if (!strcmp(args[0], "allow")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8538 rule->action = ACT_ACTION_ALLOW;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8539 cur_arg = 1;
8540 } else if (!strcmp(args[0], "deny")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8541 rule->action = ACT_ACTION_DENY;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8542 cur_arg = 1;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8543 } else if (!strcmp(args[0], "set-nice")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8544 rule->action = ACT_HTTP_SET_NICE;
Willy Tarreauf4c43c12013-06-11 17:01:13 +0200[diff] [blame]8545 cur_arg = 1;
8546
8547 if (!*args[cur_arg] ||
8548 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8549 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer value).\n",
8550 file, linenum, args[0]);
8551 goto out_err;
8552 }
8553 rule->arg.nice = atoi(args[cur_arg]);
8554 if (rule->arg.nice < -1024)
8555 rule->arg.nice = -1024;
8556 else if (rule->arg.nice > 1024)
8557 rule->arg.nice = 1024;
8558 cur_arg++;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8559 } else if (!strcmp(args[0], "set-tos")) {
8560#ifdef IP_TOS
8561 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8562 rule->action = ACT_HTTP_SET_TOS;
Willy Tarreau42cf39e2013-06-11 18:51:32 +0200[diff] [blame]8563 cur_arg = 1;
8564
8565 if (!*args[cur_arg] ||
8566 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8567 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8568 file, linenum, args[0]);
8569 goto out_err;
8570 }
8571
8572 rule->arg.tos = strtol(args[cur_arg], &err, 0);
8573 if (err && *err != '\0') {
8574 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8575 file, linenum, err, args[0]);
8576 goto out_err;
8577 }
8578 cur_arg++;
8579#else
8580 Alert("parsing [%s:%d]: 'http-response %s' is not supported on this platform (IP_TOS undefined).\n", file, linenum, args[0]);
8581 goto out_err;
8582#endif
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8583 } else if (!strcmp(args[0], "set-mark")) {
8584#ifdef SO_MARK
8585 char *err;
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8586 rule->action = ACT_HTTP_SET_MARK;
Willy Tarreau51347ed2013-06-11 19:34:13 +0200[diff] [blame]8587 cur_arg = 1;
8588
8589 if (!*args[cur_arg] ||
8590 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8591 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (integer/hex value).\n",
8592 file, linenum, args[0]);
8593 goto out_err;
8594 }
8595
8596 rule->arg.mark = strtoul(args[cur_arg], &err, 0);
8597 if (err && *err != '\0') {
8598 Alert("parsing [%s:%d]: invalid character starting at '%s' in 'http-response %s' (integer/hex value expected).\n",
8599 file, linenum, err, args[0]);
8600 goto out_err;
8601 }
8602 cur_arg++;
8603 global.last_checks |= LSTCHK_NETADM;
8604#else
8605 Alert("parsing [%s:%d]: 'http-response %s' is not supported on this platform (SO_MARK undefined).\n", file, linenum, args[0]);
8606 goto out_err;
8607#endif
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8608 } else if (!strcmp(args[0], "set-log-level")) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8609 rule->action = ACT_HTTP_SET_LOGL;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8610 cur_arg = 1;
8611
8612 if (!*args[cur_arg] ||
8613 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
8614 bad_log_level:
8615 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument (log level name or 'silent').\n",
8616 file, linenum, args[0]);
8617 goto out_err;
8618 }
8619 if (strcmp(args[cur_arg], "silent") == 0)
8620 rule->arg.loglevel = -1;
Ruoshan Huangdd016782016-06-15 22:16:03 +0800[diff] [blame]8621 else if ((rule->arg.loglevel = get_log_level(args[cur_arg]) + 1) == 0)
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200[diff] [blame]8622 goto bad_log_level;
8623 cur_arg++;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8624 } else if (strcmp(args[0], "add-header") == 0 || strcmp(args[0], "set-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8625 rule->action = *args[0] == 'a' ? ACT_HTTP_ADD_HDR : ACT_HTTP_SET_HDR;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8626 cur_arg = 1;
8627
8628 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8629 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
8630 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
8631 file, linenum, args[0]);
8632 goto out_err;
8633 }
8634
8635 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8636 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8637 LIST_INIT(&rule->arg.hdr_add.fmt);
8638
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100[diff] [blame]8639 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8640 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8641 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]8642 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8643 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8644 file, linenum, args[0], error);
8645 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8646 goto out_err;
8647 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]8648 free(proxy->conf.lfs_file);
8649 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8650 proxy->conf.lfs_line = proxy->conf.args.line;
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8651 cur_arg += 2;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8652 } else if (strcmp(args[0], "replace-header") == 0 || strcmp(args[0], "replace-value") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8653 rule->action = args[0][8] == 'h' ? ACT_HTTP_REPLACE_HDR : ACT_HTTP_REPLACE_VAL;
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8654 cur_arg = 1;
8655
8656 if (!*args[cur_arg] || !*args[cur_arg+1] || !*args[cur_arg+2] ||
Baptiste Assmann12cb00b2014-08-08 17:29:06 +0200[diff] [blame]8657 (*args[cur_arg+3] && strcmp(args[cur_arg+3], "if") != 0 && strcmp(args[cur_arg+3], "unless") != 0)) {
8658 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 3 arguments.\n",
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8659 file, linenum, args[0]);
8660 goto out_err;
8661 }
8662
8663 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8664 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8665 LIST_INIT(&rule->arg.hdr_add.fmt);
8666
Thierry FOURNIER09af0d62014-06-18 11:35:54 +0200[diff] [blame]8667 error = NULL;
8668 if (!regex_comp(args[cur_arg + 1], &rule->arg.hdr_add.re, 1, 1, &error)) {
8669 Alert("parsing [%s:%d] : '%s' : %s.\n", file, linenum,
8670 args[cur_arg + 1], error);
8671 free(error);
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8672 goto out_err;
8673 }
8674
8675 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8676 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8677 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]8678 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8679 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8680 file, linenum, args[0], error);
8681 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8682 goto out_err;
8683 }
Sasha Pachev218f0642014-06-16 12:05:59 -0600[diff] [blame]8684
8685 free(proxy->conf.lfs_file);
8686 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8687 proxy->conf.lfs_line = proxy->conf.args.line;
8688 cur_arg += 3;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8689 } else if (strcmp(args[0], "del-header") == 0) {
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8690 rule->action = ACT_HTTP_DEL_HDR;
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8691 cur_arg = 1;
8692
8693 if (!*args[cur_arg] ||
8694 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8695 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8696 file, linenum, args[0]);
8697 goto out_err;
8698 }
8699
8700 rule->arg.hdr_add.name = strdup(args[cur_arg]);
8701 rule->arg.hdr_add.name_len = strlen(rule->arg.hdr_add.name);
8702
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8703 proxy->conf.args.ctx = ARGC_HRS;
8704 free(proxy->conf.lfs_file);
8705 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8706 proxy->conf.lfs_line = proxy->conf.args.line;
8707 cur_arg += 1;
8708 } else if (strncmp(args[0], "add-acl", 7) == 0) {
8709 /* http-request add-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8710 rule->action = ACT_HTTP_ADD_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8711 /*
8712 * '+ 8' for 'add-acl('
8713 * '- 9' for 'add-acl(' + trailing ')'
8714 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8715 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8716
8717 cur_arg = 1;
8718
8719 if (!*args[cur_arg] ||
8720 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8721 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8722 file, linenum, args[0]);
8723 goto out_err;
8724 }
8725
8726 LIST_INIT(&rule->arg.map.key);
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8727 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8728 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8729 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]8730 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8731 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8732 file, linenum, args[0], error);
8733 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8734 goto out_err;
8735 }
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8736 free(proxy->conf.lfs_file);
8737 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8738 proxy->conf.lfs_line = proxy->conf.args.line;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8739
Thierry FOURNIERdad3d1d2014-04-22 18:07:25 +0200[diff] [blame]8740 cur_arg += 1;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8741 } else if (strncmp(args[0], "del-acl", 7) == 0) {
8742 /* http-response del-acl(<reference (acl name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8743 rule->action = ACT_HTTP_DEL_ACL;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8744 /*
8745 * '+ 8' for 'del-acl('
8746 * '- 9' for 'del-acl(' + trailing ')'
8747 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8748 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8749
8750 cur_arg = 1;
8751
8752 if (!*args[cur_arg] ||
8753 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8754 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8755 file, linenum, args[0]);
8756 goto out_err;
8757 }
8758
8759 LIST_INIT(&rule->arg.map.key);
8760 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8761 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8762 if (!parse_logformat_string(args[cur_arg], proxy, &rule->arg.map.key, LOG_OPT_HTTP,
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8763 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8764 Alert("parsing [%s:%d]: 'http-response %s': %s.\n",
8765 file, linenum, args[0], error);
8766 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8767 goto out_err;
8768 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8769 free(proxy->conf.lfs_file);
8770 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8771 proxy->conf.lfs_line = proxy->conf.args.line;
8772 cur_arg += 1;
8773 } else if (strncmp(args[0], "del-map", 7) == 0) {
8774 /* http-response del-map(<reference (map name)>) <key pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8775 rule->action = ACT_HTTP_DEL_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8776 /*
8777 * '+ 8' for 'del-map('
8778 * '- 9' for 'del-map(' + trailing ')'
8779 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8780 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8781
8782 cur_arg = 1;
8783
8784 if (!*args[cur_arg] ||
8785 (*args[cur_arg+1] && strcmp(args[cur_arg+1], "if") != 0 && strcmp(args[cur_arg+1], "unless") != 0)) {
8786 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 1 argument.\n",
8787 file, linenum, args[0]);
8788 goto out_err;
8789 }
8790
8791 LIST_INIT(&rule->arg.map.key);
8792 proxy->conf.args.ctx = ARGC_HRS;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8793 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8794 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]8795 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8796 Alert("parsing [%s:%d]: 'http-response %s' %s.\n",
8797 file, linenum, args[0], error);
8798 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8799 goto out_err;
8800 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8801 free(proxy->conf.lfs_file);
8802 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8803 proxy->conf.lfs_line = proxy->conf.args.line;
8804 cur_arg += 1;
8805 } else if (strncmp(args[0], "set-map", 7) == 0) {
8806 /* http-response set-map(<reference (map name)>) <key pattern> <value pattern> */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8807 rule->action = ACT_HTTP_SET_MAP;
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8808 /*
8809 * '+ 8' for 'set-map('
8810 * '- 9' for 'set-map(' + trailing ')'
8811 */
Willy Tarreau6c09c2c2014-04-25 21:38:08 +0200[diff] [blame]8812 rule->arg.map.ref = my_strndup(args[0] + 8, strlen(args[0]) - 9);
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8813
8814 cur_arg = 1;
8815
8816 if (!*args[cur_arg] || !*args[cur_arg+1] ||
8817 (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) {
8818 Alert("parsing [%s:%d]: 'http-response %s' expects exactly 2 arguments.\n",
8819 file, linenum, args[0]);
8820 goto out_err;
8821 }
8822
8823 LIST_INIT(&rule->arg.map.key);
8824 LIST_INIT(&rule->arg.map.value);
8825
8826 proxy->conf.args.ctx = ARGC_HRS;
8827
8828 /* key pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8829 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8830 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]8831 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8832 Alert("parsing [%s:%d]: 'http-response %s' name: %s.\n",
8833 file, linenum, args[0], error);
8834 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8835 goto out_err;
8836 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8837
8838 /* value pattern */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100[diff] [blame]8839 error = NULL;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8840 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]8841 (proxy->cap & PR_CAP_BE) ? SMP_VAL_BE_HRS_HDR : SMP_VAL_FE_HRS_HDR, &error)) {
8842 Alert("parsing [%s:%d]: 'http-response %s' value: %s.\n",
8843 file, linenum, args[0], error);
8844 free(error);
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]8845 goto out_err;
8846 }
Baptiste Assmannfabcbe02014-04-24 22:16:59 +0200[diff] [blame]8847
8848 free(proxy->conf.lfs_file);
8849 proxy->conf.lfs_file = strdup(proxy->conf.args.file);
8850 proxy->conf.lfs_line = proxy->conf.args.line;
8851
8852 cur_arg += 2;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]8853 } else if (strcmp(args[0], "redirect") == 0) {
8854 struct redirect_rule *redir;
8855 char *errmsg = NULL;
8856
8857 if ((redir = http_parse_redirect_rule(file, linenum, proxy, (const char **)args + 1, &errmsg, 1, 1)) == NULL) {
8858 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
8859 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
8860 goto out_err;
8861 }
8862
8863 /* this redirect rule might already contain a parsed condition which
8864 * we'll pass to the http-request rule.
8865 */
Thierry FOURNIER0ea5c7f2015-08-05 19:05:19 +0200[diff] [blame]8866 rule->action = ACT_HTTP_REDIR;
Willy Tarreau51d861a2015-05-22 17:30:48 +0200[diff] [blame]8867 rule->arg.redir = redir;
8868 rule->cond = redir->cond;
8869 redir->cond = NULL;
8870 cur_arg = 2;
8871 return rule;
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]8872 } else if (strncmp(args[0], "track-sc", 8) == 0 &&
8873 args[0][9] == '\0' && args[0][8] >= '0' &&
8874 args[0][8] < '0' + MAX_SESS_STKCTR) { /* track-sc 0..9 */
8875 struct sample_expr *expr;
8876 unsigned int where;
8877 char *err = NULL;
8878
8879 cur_arg = 1;
8880 proxy->conf.args.ctx = ARGC_TRK;
8881
8882 expr = sample_parse_expr((char **)args, &cur_arg, file, linenum, &err, &proxy->conf.args);
8883 if (!expr) {
8884 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
8885 file, linenum, proxy_type_str(proxy), proxy->id, args[0], err);
8886 free(err);
8887 goto out_err;
8888 }
8889
8890 where = 0;
8891 if (proxy->cap & PR_CAP_FE)
8892 where |= SMP_VAL_FE_HRS_HDR;
8893 if (proxy->cap & PR_CAP_BE)
8894 where |= SMP_VAL_BE_HRS_HDR;
8895
8896 if (!(expr->fetch->val & where)) {
8897 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule :"
8898 " fetch method '%s' extracts information from '%s', none of which is available here.\n",
8899 file, linenum, proxy_type_str(proxy), proxy->id, args[0],
8900 args[cur_arg-1], sample_src_names(expr->fetch->use));
8901 free(expr);
8902 goto out_err;
8903 }
8904
8905 if (strcmp(args[cur_arg], "table") == 0) {
8906 cur_arg++;
8907 if (!args[cur_arg]) {
8908 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : missing table name.\n",
8909 file, linenum, proxy_type_str(proxy), proxy->id, args[0]);
8910 free(expr);
8911 goto out_err;
8912 }
8913 /* we copy the table name for now, it will be resolved later */
8914 rule->arg.trk_ctr.table.n = strdup(args[cur_arg]);
8915 cur_arg++;
8916 }
8917 rule->arg.trk_ctr.expr = expr;
8918 rule->action = ACT_ACTION_TRK_SC0 + args[0][8] - '0';
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8919 } else if (((custom = action_http_res_custom(args[0])) != NULL)) {
8920 char *errmsg = NULL;
8921 cur_arg = 1;
8922 /* try in the module list */
Thierry FOURNIER5563e4b2015-08-14 19:20:07 +0200[diff] [blame]8923 rule->from = ACT_F_HTTP_RES;
Thierry FOURNIER85c6c972015-09-22 19:14:35 +0200[diff] [blame]8924 rule->kw = custom;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]8925 if (custom->parse(args, &cur_arg, proxy, rule, &errmsg) == ACT_RET_PRS_ERR) {
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]8926 Alert("parsing [%s:%d] : error detected in %s '%s' while parsing 'http-response %s' rule : %s.\n",
8927 file, linenum, proxy_type_str(proxy), proxy->id, args[0], errmsg);
8928 free(errmsg);
8929 goto out_err;
8930 }
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8931 } else {
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]8932 action_build_list(&http_res_keywords.list, &trash);
8933 Alert("parsing [%s:%d]: 'http-response' expects 'allow', 'deny', 'redirect', "
8934 "'add-header', 'del-header', 'set-header', 'replace-header', 'replace-value', 'set-nice', "
Ruoshan Huange4edc6b2016-07-14 15:07:45 +0800[diff] [blame]8935 "'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]8936 "%s%s, but got '%s'%s.\n",
Thierry FOURNIERab95e652015-10-02 08:24:51 +0200[diff] [blame]8937 file, linenum, *trash.str ? ", " : "", trash.str, args[0], *args[0] ? "" : " (missing argument)");
Willy Tarreaue365c0b2013-06-11 16:06:12 +0200[diff] [blame]8938 goto out_err;
8939 }
8940
8941 if (strcmp(args[cur_arg], "if") == 0 || strcmp(args[cur_arg], "unless") == 0) {
8942 struct acl_cond *cond;
8943 char *errmsg = NULL;
8944
8945 if ((cond = build_acl_cond(file, linenum, proxy, args+cur_arg, &errmsg)) == NULL) {
8946 Alert("parsing [%s:%d] : error detected while parsing an 'http-response %s' condition : %s.\n",
8947 file, linenum, args[0], errmsg);
8948 free(errmsg);
8949 goto out_err;
8950 }
8951 rule->cond = cond;
8952 }
8953 else if (*args[cur_arg]) {
8954 Alert("parsing [%s:%d]: 'http-response %s' expects"
8955 " either 'if' or 'unless' followed by a condition but found '%s'.\n",
8956 file, linenum, args[0], args[cur_arg]);
8957 goto out_err;
8958 }
8959
8960 return rule;
8961 out_err:
8962 free(rule);
8963 return NULL;
8964}
8965
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]8966/* Parses a redirect rule. Returns the redirect rule on success or NULL on error,
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]8967 * 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]8968 * dynamic log-format rule instead of a static string. Parameter <dir> indicates
8969 * the direction of the rule, and equals 0 for request, non-zero for responses.
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]8970 */
8971struct redirect_rule *http_parse_redirect_rule(const char *file, int linenum, struct proxy *curproxy,
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]8972 const char **args, char **errmsg, int use_fmt, int dir)
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]8973{
8974 struct redirect_rule *rule;
8975 int cur_arg;
8976 int type = REDIRECT_TYPE_NONE;
8977 int code = 302;
8978 const char *destination = NULL;
8979 const char *cookie = NULL;
8980 int cookie_set = 0;
8981 unsigned int flags = REDIRECT_FLAG_NONE;
8982 struct acl_cond *cond = NULL;
8983
8984 cur_arg = 0;
8985 while (*(args[cur_arg])) {
8986 if (strcmp(args[cur_arg], "location") == 0) {
8987 if (!*args[cur_arg + 1])
8988 goto missing_arg;
8989
8990 type = REDIRECT_TYPE_LOCATION;
8991 cur_arg++;
8992 destination = args[cur_arg];
8993 }
8994 else if (strcmp(args[cur_arg], "prefix") == 0) {
8995 if (!*args[cur_arg + 1])
8996 goto missing_arg;
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]8997 type = REDIRECT_TYPE_PREFIX;
8998 cur_arg++;
8999 destination = args[cur_arg];
9000 }
9001 else if (strcmp(args[cur_arg], "scheme") == 0) {
9002 if (!*args[cur_arg + 1])
9003 goto missing_arg;
9004
9005 type = REDIRECT_TYPE_SCHEME;
9006 cur_arg++;
9007 destination = args[cur_arg];
9008 }
9009 else if (strcmp(args[cur_arg], "set-cookie") == 0) {
9010 if (!*args[cur_arg + 1])
9011 goto missing_arg;
9012
9013 cur_arg++;
9014 cookie = args[cur_arg];
9015 cookie_set = 1;
9016 }
9017 else if (strcmp(args[cur_arg], "clear-cookie") == 0) {
9018 if (!*args[cur_arg + 1])
9019 goto missing_arg;
9020
9021 cur_arg++;
9022 cookie = args[cur_arg];
9023 cookie_set = 0;
9024 }
9025 else if (strcmp(args[cur_arg], "code") == 0) {
9026 if (!*args[cur_arg + 1])
9027 goto missing_arg;
9028
9029 cur_arg++;
9030 code = atol(args[cur_arg]);
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9031 if (code < 301 || code > 308 || (code > 303 && code < 307)) {
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9032 memprintf(errmsg,
Yves Lafon3e8d1ae2013-03-11 11:06:05 -0400[diff] [blame]9033 "'%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]9034 args[cur_arg - 1], args[cur_arg]);
9035 return NULL;
9036 }
9037 }
9038 else if (!strcmp(args[cur_arg],"drop-query")) {
9039 flags |= REDIRECT_FLAG_DROP_QS;
9040 }
9041 else if (!strcmp(args[cur_arg],"append-slash")) {
9042 flags |= REDIRECT_FLAG_APPEND_SLASH;
9043 }
9044 else if (strcmp(args[cur_arg], "if") == 0 ||
9045 strcmp(args[cur_arg], "unless") == 0) {
9046 cond = build_acl_cond(file, linenum, curproxy, (const char **)args + cur_arg, errmsg);
9047 if (!cond) {
9048 memprintf(errmsg, "error in condition: %s", *errmsg);
9049 return NULL;
9050 }
9051 break;
9052 }
9053 else {
9054 memprintf(errmsg,
9055 "expects 'code', 'prefix', 'location', 'scheme', 'set-cookie', 'clear-cookie', 'drop-query' or 'append-slash' (was '%s')",
9056 args[cur_arg]);
9057 return NULL;
9058 }
9059 cur_arg++;
9060 }
9061
9062 if (type == REDIRECT_TYPE_NONE) {
9063 memprintf(errmsg, "redirection type expected ('prefix', 'location', or 'scheme')");
9064 return NULL;
9065 }
9066
Willy Tarreaube4653b2015-05-28 15:26:58 +0200[diff] [blame]9067 if (dir && type != REDIRECT_TYPE_LOCATION) {
9068 memprintf(errmsg, "response only supports redirect type 'location'");
9069 return NULL;
9070 }
9071
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]9072 rule = calloc(1, sizeof(*rule));
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9073 rule->cond = cond;
Willy Tarreau60e08382013-12-03 00:48:45 +0100[diff] [blame]9074 LIST_INIT(&rule->rdr_fmt);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9075
9076 if (!use_fmt) {
9077 /* old-style static redirect rule */
9078 rule->rdr_str = strdup(destination);
9079 rule->rdr_len = strlen(destination);
9080 }
9081 else {
9082 /* log-format based redirect rule */
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9083
9084 /* Parse destination. Note that in the REDIRECT_TYPE_PREFIX case,
9085 * if prefix == "/", we don't want to add anything, otherwise it
9086 * makes it hard for the user to configure a self-redirection.
9087 */
Godbachd9722032014-12-18 15:44:58 +0800[diff] [blame]9088 curproxy->conf.args.ctx = ARGC_RDR;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9089 if (!(type == REDIRECT_TYPE_PREFIX && destination[0] == '/' && destination[1] == '\0')) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9090 if (!parse_logformat_string(destination, curproxy, &rule->rdr_fmt, LOG_OPT_HTTP,
9091 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]9092 : (curproxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR,
9093 errmsg)) {
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]9094 return NULL;
9095 }
Willy Tarreau59ad1a22014-01-29 14:39:58 +0100[diff] [blame]9096 free(curproxy->conf.lfs_file);
9097 curproxy->conf.lfs_file = strdup(curproxy->conf.args.file);
9098 curproxy->conf.lfs_line = curproxy->conf.args.line;
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100[diff] [blame]9099 }
9100 }
9101
Willy Tarreau4baae242012-12-27 12:00:31 +0100[diff] [blame]9102 if (cookie) {
9103 /* depending on cookie_set, either we want to set the cookie, or to clear it.
9104 * a clear consists in appending "; path=/; Max-Age=0;" at the end.
9105 */
9106 rule->cookie_len = strlen(cookie);
9107 if (cookie_set) {
9108 rule->cookie_str = malloc(rule->cookie_len + 10);
9109 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9110 memcpy(rule->cookie_str + rule->cookie_len, "; path=/;", 10);
9111 rule->cookie_len += 9;
9112 } else {
9113 rule->cookie_str = malloc(rule->cookie_len + 21);
9114 memcpy(rule->cookie_str, cookie, rule->cookie_len);
9115 memcpy(rule->cookie_str + rule->cookie_len, "; path=/; Max-Age=0;", 21);
9116 rule->cookie_len += 20;
9117 }
9118 }
9119 rule->type = type;
9120 rule->code = code;
9121 rule->flags = flags;
9122 LIST_INIT(&rule->list);
9123 return rule;
9124
9125 missing_arg:
9126 memprintf(errmsg, "missing argument for '%s'", args[cur_arg]);
9127 return NULL;
9128}
9129
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9130/************************************************************************/
9131/* The code below is dedicated to ACL parsing and matching */
9132/************************************************************************/
9133
9134
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9135/* This function ensures that the prerequisites for an L7 fetch are ready,
9136 * which means that a request or response is ready. If some data is missing,
9137 * 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]9138 * to extract data from L7. If <req_vol> is non-null during a request prefetch,
9139 * another test is made to ensure the required information is not gone.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9140 *
9141 * The function returns :
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9142 * 0 with SMP_F_MAY_CHANGE in the sample flags if some data is missing to
9143 * decide whether or not an HTTP message is present ;
9144 * 0 if the requested data cannot be fetched or if it is certain that
9145 * we'll never have any HTTP message there ;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9146 * 1 if an HTTP message is ready
9147 */
James Rosewell91a41cb2015-09-18 17:11:16 +0100[diff] [blame]9148int smp_prefetch_http(struct proxy *px, struct stream *s, unsigned int opt,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9149 const struct arg *args, struct sample *smp, int req_vol)
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9150{
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9151 struct http_txn *txn;
9152 struct http_msg *msg;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9153
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9154 /* Note: it is possible that <s> is NULL when called before stream
9155 * initialization (eg: tcp-request connection), so this function is the
9156 * one responsible for guarding against this case for all HTTP users.
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9157 */
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9158 if (!s)
9159 return 0;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9160
Thierry FOURNIERed08d6a2015-09-24 08:40:18 +0200[diff] [blame]9161 if (!s->txn) {
9162 if (unlikely(!http_alloc_txn(s)))
9163 return 0; /* not enough memory */
9164 http_init_txn(s);
9165 }
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9166 txn = s->txn;
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]9167 msg = &txn->req;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9168
9169 /* Check for a dependency on a request */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9170 smp->data.type = SMP_T_BOOL;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9171
Willy Tarreau32a6f2e2012-04-25 10:13:36 +0200[diff] [blame]9172 if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9173 /* If the buffer does not leave enough free space at the end,
9174 * we must first realign it.
9175 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9176 if (s->req.buf->p > s->req.buf->data &&
9177 s->req.buf->i + s->req.buf->p > s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)
9178 buffer_slow_realign(s->req.buf);
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9179
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9180 if (unlikely(txn->req.msg_state < HTTP_MSG_BODY)) {
Willy Tarreau472b1ee2013-10-14 22:41:30 +0200[diff] [blame]9181 if (msg->msg_state == HTTP_MSG_ERROR)
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9182 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9183
9184 /* Try to decode HTTP request */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9185 if (likely(msg->next < s->req.buf->i))
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9186 http_msg_analyzer(msg, &txn->hdr_idx);
9187
9188 /* Still no valid request ? */
9189 if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
Willy Tarreau3bf1b2b2012-08-27 20:46:07 +0200[diff] [blame]9190 if ((msg->msg_state == HTTP_MSG_ERROR) ||
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9191 buffer_full(s->req.buf, global.tune.maxrewrite)) {
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9192 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9193 }
9194 /* wait for final state */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9195 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9196 return 0;
9197 }
9198
9199 /* OK we just got a valid HTTP request. We have some minor
9200 * preparation to perform so that further checks can rely
9201 * on HTTP tests.
9202 */
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9203
9204 /* If the request was parsed but was too large, we must absolutely
9205 * return an error so that it is not processed. At the moment this
9206 * cannot happen, but if the parsers are to change in the future,
9207 * we want this check to be maintained.
9208 */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]9209 if (unlikely(s->req.buf->i + s->req.buf->p >
9210 s->req.buf->data + s->req.buf->size - global.tune.maxrewrite)) {
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]9211 msg->err_state = msg->msg_state;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9212 msg->msg_state = HTTP_MSG_ERROR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9213 smp->data.u.sint = 1;
Willy Tarreauaae75e32013-03-29 12:31:49 +0100[diff] [blame]9214 return 1;
9215 }
9216
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9217 txn->meth = find_http_meth(msg->chn->buf->p, msg->sl.rq.m_l);
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9218 if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200[diff] [blame]9219 s->flags |= SF_REDIRECTABLE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9220
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9221 if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn))
9222 return 0;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9223 }
9224
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9225 if (req_vol && txn->rsp.msg_state != HTTP_MSG_RPBEFORE) {
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9226 return 0; /* data might have moved and indexes changed */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9227 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9228
9229 /* otherwise everything's ready for the request */
9230 }
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9231 else {
9232 /* Check for a dependency on a response */
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9233 if (txn->rsp.msg_state < HTTP_MSG_BODY) {
9234 smp->flags |= SMP_F_MAY_CHANGE;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9235 return 0;
Willy Tarreau506d0502013-07-06 13:29:24 +0200[diff] [blame]9236 }
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9237 }
9238
9239 /* everything's OK */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9240 smp->data.u.sint = 1;
Willy Tarreau14174bc2012-04-16 14:34:04 +0200[diff] [blame]9241 return 1;
9242}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9243
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9244/* 1. Check on METHOD
9245 * We use the pre-parsed method if it is known, and store its number as an
9246 * integer. If it is unknown, we use the pointer and the length.
9247 */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9248static int pat_parse_meth(const char *text, struct pattern *pattern, int mflags, char **err)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9249{
9250 int len, meth;
9251
Thierry FOURNIER580c32c2014-01-24 10:58:12 +0100[diff] [blame]9252 len = strlen(text);
9253 meth = find_http_meth(text, len);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9254
9255 pattern->val.i = meth;
9256 if (meth == HTTP_METH_OTHER) {
Willy Tarreau912c1192014-08-29 15:15:50 +0200[diff] [blame]9257 pattern->ptr.str = (char *)text;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9258 pattern->len = len;
9259 }
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9260 else {
9261 pattern->ptr.str = NULL;
9262 pattern->len = 0;
Thierry FOURNIERd4373142013-12-17 01:10:10 +0100[diff] [blame]9263 }
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9264 return 1;
9265}
9266
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9267/* This function fetches the method of current HTTP request and stores
9268 * it in the global pattern struct as a chunk. There are two possibilities :
9269 * - if the method is known (not HTTP_METH_OTHER), its identifier is stored
9270 * in <len> and <ptr> is NULL ;
9271 * - if the method is unknown (HTTP_METH_OTHER), <ptr> points to the text and
9272 * <len> to its length.
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]9273 * This is intended to be used with pat_match_meth() only.
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9274 */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9275static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9276smp_fetch_meth(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9277{
9278 int meth;
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9279 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9280
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]9281 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9282
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9283 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9284 meth = txn->meth;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9285 smp->data.type = SMP_T_METH;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9286 smp->data.u.meth.meth = meth;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9287 if (meth == HTTP_METH_OTHER) {
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9288 if (txn->rsp.msg_state != HTTP_MSG_RPBEFORE)
9289 /* ensure the indexes are not affected */
9290 return 0;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9291 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9292 smp->data.u.meth.str.len = txn->req.sl.rq.m_l;
9293 smp->data.u.meth.str.str = txn->req.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9294 }
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9295 smp->flags |= SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9296 return 1;
9297}
9298
Willy Tarreau8e5e9552011-12-16 15:38:49 +0100[diff] [blame]9299/* See above how the method is stored in the global pattern */
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9300static struct pattern *pat_match_meth(struct sample *smp, struct pattern_expr *expr, int fill)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9301{
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9302 int icase;
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9303 struct pattern_list *lst;
9304 struct pattern *pattern;
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9305
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9306 list_for_each_entry(lst, &expr->patterns, list) {
9307 pattern = &lst->pat;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9308
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9309 /* well-known method */
9310 if (pattern->val.i != HTTP_METH_OTHER) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9311 if (smp->data.u.meth.meth == pattern->val.i)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9312 return pattern;
9313 else
9314 continue;
9315 }
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]9316
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9317 /* Other method, we must compare the strings */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9318 if (pattern->len != smp->data.u.meth.str.len)
Thierry FOURNIER5338eea2013-12-16 14:22:13 +0100[diff] [blame]9319 continue;
9320
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]9321 icase = expr->mflags & PAT_MF_IGNORE_CASE;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9322 if ((icase && strncasecmp(pattern->ptr.str, smp->data.u.meth.str.str, smp->data.u.meth.str.len) == 0) ||
9323 (!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]9324 return pattern;
9325 }
9326 return NULL;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9327}
9328
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9329static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9330smp_fetch_rqver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9331{
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9332 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9333 char *ptr;
9334 int len;
9335
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9336 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9337
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9338 txn = smp->strm->txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9339 len = txn->req.sl.rq.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9340 ptr = txn->req.chn->buf->p + txn->req.sl.rq.v;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9341
9342 while ((len-- > 0) && (*ptr++ != '/'));
9343 if (len <= 0)
9344 return 0;
9345
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9346 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9347 smp->data.u.str.str = ptr;
9348 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9349
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9350 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9351 return 1;
9352}
9353
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9354static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9355smp_fetch_stver(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9356{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9357 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9358 char *ptr;
9359 int len;
9360
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9361 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9362
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9363 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9364 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9365 return 0;
9366
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9367 len = txn->rsp.sl.st.v_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9368 ptr = txn->rsp.chn->buf->p;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9369
9370 while ((len-- > 0) && (*ptr++ != '/'));
9371 if (len <= 0)
9372 return 0;
9373
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9374 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9375 smp->data.u.str.str = ptr;
9376 smp->data.u.str.len = len;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9377
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9378 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9379 return 1;
9380}
9381
9382/* 3. Check on Status Code. We manipulate integers here. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9383static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9384smp_fetch_stcode(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9385{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9386 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9387 char *ptr;
9388 int len;
9389
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9390 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9391
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9392 txn = smp->strm->txn;
Willy Tarreauf26b2522012-12-14 08:33:14 +0100[diff] [blame]9393 if (txn->rsp.msg_state < HTTP_MSG_BODY)
9394 return 0;
9395
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9396 len = txn->rsp.sl.st.c_l;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9397 ptr = txn->rsp.chn->buf->p + txn->rsp.sl.st.c;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9398
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9399 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9400 smp->data.u.sint = __strl2ui(ptr, len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9401 smp->flags = SMP_F_VOL_1ST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9402 return 1;
9403}
9404
Thierry Fournierf4011dd2016-03-29 17:23:51 +0200[diff] [blame]9405static int
9406smp_fetch_uniqueid(const struct arg *args, struct sample *smp, const char *kw, void *private)
9407{
9408 if (LIST_ISEMPTY(&smp->sess->fe->format_unique_id))
9409 return 0;
9410
9411 if (!smp->strm->unique_id) {
9412 if ((smp->strm->unique_id = pool_alloc2(pool2_uniqueid)) == NULL)
9413 return 0;
9414 smp->strm->unique_id[0] = '\0';
9415 }
9416 smp->data.u.str.len = build_logline(smp->strm, smp->strm->unique_id,
9417 UNIQUEID_LEN, &smp->sess->fe->format_unique_id);
9418
9419 smp->data.type = SMP_T_STR;
9420 smp->data.u.str.str = smp->strm->unique_id;
9421 smp->flags = SMP_F_CONST;
9422 return 1;
9423}
9424
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]9425/* Returns a string block containing all headers including the
9426 * empty line wich separes headers from the body. This is useful
9427 * form some headers analysis.
9428 */
9429static int
9430smp_fetch_hdrs(const struct arg *args, struct sample *smp, const char *kw, void *private)
9431{
9432 struct http_msg *msg;
9433 struct hdr_idx *idx;
9434 struct http_txn *txn;
9435
9436 CHECK_HTTP_MESSAGE_FIRST();
9437
9438 txn = smp->strm->txn;
9439 idx = &txn->hdr_idx;
9440 msg = &txn->req;
9441
9442 smp->data.type = SMP_T_STR;
9443 smp->data.u.str.str = msg->chn->buf->p + hdr_idx_first_pos(idx);
9444 smp->data.u.str.len = msg->eoh - hdr_idx_first_pos(idx) + 1 +
9445 (msg->chn->buf->p[msg->eoh] == '\r');
9446
9447 return 1;
9448}
9449
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]9450/* Returns the header request in a length/value encoded format.
9451 * This is useful for exchanges with the SPOE.
9452 *
9453 * A "length value" is a multibyte code encoding numbers. It uses the
9454 * SPOE format. The encoding is the following:
9455 *
9456 * Each couple "header name" / "header value" is composed
9457 * like this:
9458 * "length value" "header name bytes"
9459 * "length value" "header value bytes"
9460 * When the last header is reached, the header name and the header
9461 * value are empty. Their length are 0
9462 */
9463static int
9464smp_fetch_hdrs_bin(const struct arg *args, struct sample *smp, const char *kw, void *private)
9465{
9466 struct http_msg *msg;
9467 struct chunk *temp;
9468 struct hdr_idx *idx;
9469 const char *cur_ptr, *cur_next, *p;
9470 int old_idx, cur_idx;
9471 struct hdr_idx_elem *cur_hdr;
9472 const char *hn, *hv;
9473 int hnl, hvl;
9474 int ret;
9475 struct http_txn *txn;
9476 char *buf;
9477 char *end;
9478
9479 CHECK_HTTP_MESSAGE_FIRST();
9480
9481 temp = get_trash_chunk();
9482 buf = temp->str;
9483 end = temp->str + temp->size;
9484
9485 txn = smp->strm->txn;
9486 idx = &txn->hdr_idx;
9487 msg = &txn->req;
9488
9489 /* Build array of headers. */
9490 old_idx = 0;
9491 cur_next = msg->chn->buf->p + hdr_idx_first_pos(idx);
9492 while (1) {
9493 cur_idx = idx->v[old_idx].next;
9494 if (!cur_idx)
9495 break;
9496 old_idx = cur_idx;
9497
9498 cur_hdr = &idx->v[cur_idx];
9499 cur_ptr = cur_next;
9500 cur_next = cur_ptr + cur_hdr->len + cur_hdr->cr + 1;
9501
9502 /* Now we have one full header at cur_ptr of len cur_hdr->len,
9503 * and the next header starts at cur_next. We'll check
9504 * this header in the list as well as against the default
9505 * rule.
9506 */
9507
9508 /* look for ': *'. */
9509 hn = cur_ptr;
9510 for (p = cur_ptr; p < cur_ptr + cur_hdr->len && *p != ':'; p++);
9511 if (p >= cur_ptr+cur_hdr->len)
9512 continue;
9513 hnl = p - hn;
9514 p++;
9515 while (p < cur_ptr + cur_hdr->len && (*p == ' ' || *p == '\t'))
9516 p++;
9517 if (p >= cur_ptr + cur_hdr->len)
9518 continue;
9519 hv = p;
9520 hvl = cur_ptr + cur_hdr->len-p;
9521
9522 /* encode the header name. */
9523 ret = encode_varint(hnl, &buf, end);
9524 if (ret == -1)
9525 return 0;
9526 if (buf + hnl > end)
9527 return 0;
9528 memcpy(buf, hn, hnl);
9529 buf += hnl;
9530
9531 /* encode and copy the value. */
9532 ret = encode_varint(hvl, &buf, end);
9533 if (ret == -1)
9534 return 0;
9535 if (buf + hvl > end)
9536 return 0;
9537 memcpy(buf, hv, hvl);
9538 buf += hvl;
9539 }
9540
9541 /* encode the end of the header list with empty
9542 * header name and header value.
9543 */
9544 ret = encode_varint(0, &buf, end);
9545 if (ret == -1)
9546 return 0;
9547 ret = encode_varint(0, &buf, end);
9548 if (ret == -1)
9549 return 0;
9550
9551 /* Initialise sample data which will be filled. */
9552 smp->data.type = SMP_T_BIN;
9553 smp->data.u.str.str = temp->str;
9554 smp->data.u.str.len = buf - temp->str;
9555 smp->data.u.str.size = temp->size;
9556
9557 return 1;
9558}
9559
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9560/* returns the longest available part of the body. This requires that the body
9561 * has been waited for using http-buffer-request.
9562 */
9563static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9564smp_fetch_body(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9565{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9566 struct http_msg *msg;
9567 unsigned long len;
9568 unsigned long block1;
9569 char *body;
9570 struct chunk *temp;
9571
9572 CHECK_HTTP_MESSAGE_FIRST();
9573
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9574 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9575 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9576 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9577 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9578
9579 len = http_body_bytes(msg);
9580 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
9581
9582 block1 = len;
9583 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
9584 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
9585
9586 if (block1 == len) {
9587 /* buffer is not wrapped (or empty) */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9588 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9589 smp->data.u.str.str = body;
9590 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9591 smp->flags = SMP_F_VOL_TEST | SMP_F_CONST;
9592 }
9593 else {
9594 /* buffer is wrapped, we need to defragment it */
9595 temp = get_trash_chunk();
9596 memcpy(temp->str, body, block1);
9597 memcpy(temp->str + block1, msg->chn->buf->data, len - block1);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9598 smp->data.type = SMP_T_BIN;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9599 smp->data.u.str.str = temp->str;
9600 smp->data.u.str.len = len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9601 smp->flags = SMP_F_VOL_TEST;
9602 }
9603 return 1;
9604}
9605
9606
9607/* returns the available length of the body. This requires that the body
9608 * has been waited for using http-buffer-request.
9609 */
9610static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9611smp_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]9612{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9613 struct http_msg *msg;
9614
9615 CHECK_HTTP_MESSAGE_FIRST();
9616
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9617 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9618 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9619 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9620 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9621
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9622 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9623 smp->data.u.sint = http_body_bytes(msg);
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9624
9625 smp->flags = SMP_F_VOL_TEST;
9626 return 1;
9627}
9628
9629
9630/* returns the advertised length of the body, or the advertised size of the
9631 * chunks available in the buffer. This requires that the body has been waited
9632 * for using http-buffer-request.
9633 */
9634static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9635smp_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]9636{
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9637 struct http_msg *msg;
9638
9639 CHECK_HTTP_MESSAGE_FIRST();
9640
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9641 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9642 msg = &smp->strm->txn->req;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9643 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]9644 msg = &smp->strm->txn->rsp;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9645
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9646 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9647 smp->data.u.sint = msg->body_len;
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]9648
9649 smp->flags = SMP_F_VOL_TEST;
9650 return 1;
9651}
9652
9653
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9654/* 4. Check on URL/URI. A pointer to the URI is stored. */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]9655static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9656smp_fetch_url(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9657{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9658 struct http_txn *txn;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9659
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9660 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9661
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9662 txn = smp->strm->txn;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9663 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9664 smp->data.u.str.len = txn->req.sl.rq.u_l;
9665 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]9666 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9667 return 1;
9668}
9669
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9670static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9671smp_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]9672{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9673 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]9674 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9675
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9676 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9677
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9678 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]9679 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]9680 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
Willy Tarreauf4362b32011-12-16 17:49:52 +0100[diff] [blame]9681 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9682
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9683 smp->data.type = SMP_T_IPV4;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9684 smp->data.u.ipv4 = ((struct sockaddr_in *)&addr)->sin_addr;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9685 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9686 return 1;
9687}
9688
9689static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9690smp_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]9691{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9692 struct http_txn *txn;
Willy Tarreau4c804ec2013-09-30 14:37:14 +0200[diff] [blame]9693 struct sockaddr_storage addr;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9694
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9695 CHECK_HTTP_MESSAGE_FIRST();
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9696
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9697 txn = smp->strm->txn;
Thierry FOURNIER9f95e402014-03-21 14:51:46 +0100[diff] [blame]9698 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]9699 if (((struct sockaddr_in *)&addr)->sin_family != AF_INET)
9700 return 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9701
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9702 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9703 smp->data.u.sint = ntohs(((struct sockaddr_in *)&addr)->sin_port);
Willy Tarreau21e5b0e2012-04-23 19:25:44 +0200[diff] [blame]9704 smp->flags = 0;
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100[diff] [blame]9705 return 1;
9706}
9707
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9708/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
9709 * Accepts an optional argument of type string containing the header field name,
9710 * and an optional argument of type signed or unsigned integer to request an
9711 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9712 * headers are considered from the first one. It does not stop on commas and
9713 * returns full lines instead (useful for User-Agent or Date for example).
9714 */
9715static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9716smp_fetch_fhdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9717{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9718 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9719 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9720 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9721 int occ = 0;
9722 const char *name_str = NULL;
9723 int name_len = 0;
9724
9725 if (!ctx) {
9726 /* first call */
9727 ctx = &static_hdr_ctx;
9728 ctx->idx = 0;
9729 smp->ctx.a[0] = ctx;
9730 }
9731
9732 if (args) {
9733 if (args[0].type != ARGT_STR)
9734 return 0;
9735 name_str = args[0].data.str.str;
9736 name_len = args[0].data.str.len;
9737
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]9738 if (args[1].type == ARGT_SINT)
9739 occ = args[1].data.sint;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9740 }
9741
9742 CHECK_HTTP_MESSAGE_FIRST();
9743
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9744 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9745 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]9746
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9747 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
9748 /* search for header from the beginning */
9749 ctx->idx = 0;
9750
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9751 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9752 /* no explicit occurrence and single fetch => last header by default */
9753 occ = -1;
9754
9755 if (!occ)
9756 /* prepare to report multiple occurrences for ACL fetches */
9757 smp->flags |= SMP_F_NOT_LAST;
9758
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9759 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9760 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9761 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]9762 return 1;
9763
9764 smp->flags &= ~SMP_F_NOT_LAST;
9765 return 0;
9766}
9767
9768/* 6. Check on HTTP header count. The number of occurrences is returned.
9769 * Accepts exactly 1 argument of type string. It does not stop on commas and
9770 * returns full lines instead (useful for User-Agent or Date for example).
9771 */
9772static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9773smp_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]9774{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9775 struct hdr_idx *idx;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9776 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9777 const struct http_msg *msg;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9778 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]9779 const char *name = NULL;
9780 int len = 0;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9781
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]9782 if (args && args->type == ARGT_STR) {
9783 name = args->data.str.str;
9784 len = args->data.str.len;
9785 }
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9786
9787 CHECK_HTTP_MESSAGE_FIRST();
9788
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9789 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9790 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]9791
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9792 ctx.idx = 0;
9793 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]9794 while (http_find_full_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9795 cnt++;
9796
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9797 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9798 smp->data.u.sint = cnt;
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9799 smp->flags = SMP_F_VOL_HDR;
9800 return 1;
9801}
9802
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9803static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9804smp_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]9805{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9806 struct hdr_idx *idx;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9807 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9808 const struct http_msg *msg;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9809 struct chunk *temp;
9810 char del = ',';
9811
9812 if (args && args->type == ARGT_STR)
9813 del = *args[0].data.str.str;
9814
9815 CHECK_HTTP_MESSAGE_FIRST();
9816
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9817 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9818 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]9819
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9820 temp = get_trash_chunk();
9821
9822 ctx.idx = 0;
9823 while (http_find_next_header(msg->chn->buf->p, idx, &ctx)) {
9824 if (temp->len)
9825 temp->str[temp->len++] = del;
9826 memcpy(temp->str + temp->len, ctx.line, ctx.del);
9827 temp->len += ctx.del;
9828 }
9829
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9830 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9831 smp->data.u.str.str = temp->str;
9832 smp->data.u.str.len = temp->len;
Willy Tarreaueb27ec72015-02-20 13:55:29 +0100[diff] [blame]9833 smp->flags = SMP_F_VOL_HDR;
9834 return 1;
9835}
9836
Willy Tarreau04ff9f12013-06-10 18:39:42 +0200[diff] [blame]9837/* Fetch an HTTP header. A pointer to the beginning of the value is returned.
9838 * Accepts an optional argument of type string containing the header field name,
9839 * and an optional argument of type signed or unsigned integer to request an
9840 * explicit occurrence of the header. Note that in the event of a missing name,
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9841 * headers are considered from the first one.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9842 */
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9843static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9844smp_fetch_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9845{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9846 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]9847 struct hdr_ctx *ctx = smp->ctx.a[0];
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9848 const struct http_msg *msg;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9849 int occ = 0;
9850 const char *name_str = NULL;
9851 int name_len = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]9852
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]9853 if (!ctx) {
9854 /* first call */
9855 ctx = &static_hdr_ctx;
9856 ctx->idx = 0;
Willy Tarreauffb6f082013-04-02 23:16:53 +0200[diff] [blame]9857 smp->ctx.a[0] = ctx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]9858 }
9859
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9860 if (args) {
9861 if (args[0].type != ARGT_STR)
9862 return 0;
9863 name_str = args[0].data.str.str;
9864 name_len = args[0].data.str.len;
9865
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]9866 if (args[1].type == ARGT_SINT)
9867 occ = args[1].data.sint;
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9868 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]9869
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]9870 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9871
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9872 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9873 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]9874
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9875 if (ctx && !(smp->flags & SMP_F_NOT_LAST))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9876 /* search for header from the beginning */
9877 ctx->idx = 0;
9878
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9879 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9880 /* no explicit occurrence and single fetch => last header by default */
9881 occ = -1;
9882
9883 if (!occ)
9884 /* prepare to report multiple occurrences for ACL fetches */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9885 smp->flags |= SMP_F_NOT_LAST;
Willy Tarreau664092c2011-12-16 19:11:42 +0100[diff] [blame]9886
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9887 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]9888 smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9889 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]9890 return 1;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9891
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9892 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9893 return 0;
9894}
9895
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9896/* 6. Check on HTTP header count. The number of occurrences is returned.
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]9897 * Accepts exactly 1 argument of type string.
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9898 */
9899static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9900smp_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]9901{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9902 struct hdr_idx *idx;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9903 struct hdr_ctx ctx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9904 const struct http_msg *msg;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9905 int cnt;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]9906 const char *name = NULL;
9907 int len = 0;
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]9908
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]9909 if (args && args->type == ARGT_STR) {
9910 name = args->data.str.str;
9911 len = args->data.str.len;
9912 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]9913
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]9914 CHECK_HTTP_MESSAGE_FIRST();
9915
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9916 idx = &smp->strm->txn->hdr_idx;
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9917 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]9918
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9919 ctx.idx = 0;
9920 cnt = 0;
Willy Tarreau601a4d12015-04-01 19:16:09 +0200[diff] [blame]9921 while (http_find_header2(name, len, msg->chn->buf->p, idx, &ctx))
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9922 cnt++;
9923
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9924 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9925 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]9926 smp->flags = SMP_F_VOL_HDR;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9927 return 1;
9928}
9929
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9930/* Fetch an HTTP header's integer value. The integer value is returned. It
9931 * takes a mandatory argument of type string and an optional one of type int
9932 * to designate a specific occurrence. It returns an unsigned integer, which
9933 * may or may not be appropriate for everything.
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9934 */
9935static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9936smp_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]9937{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9938 int ret = smp_fetch_hdr(args, smp, kw, private);
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]9939
Willy Tarreauf853c462012-04-23 18:53:56 +0200[diff] [blame]9940 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9941 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9942 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]9943 }
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9944
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]9945 return ret;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9946}
9947
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]9948/* Fetch an HTTP header's IP value. takes a mandatory argument of type string
9949 * and an optional one of type int to designate a specific occurrence.
9950 * It returns an IPv4 or IPv6 address.
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]9951 */
9952static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9953smp_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]9954{
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]9955 int ret;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]9956
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9957 while ((ret = smp_fetch_hdr(args, smp, kw, private)) > 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9958 if (url2ipv4((char *)smp->data.u.str.str, &smp->data.u.ipv4)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9959 smp->data.type = SMP_T_IPV4;
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]9960 break;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]9961 } else {
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]9962 struct chunk *temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9963 if (smp->data.u.str.len < temp->size - 1) {
9964 memcpy(temp->str, smp->data.u.str.str, smp->data.u.str.len);
9965 temp->str[smp->data.u.str.len] = '\0';
9966 if (inet_pton(AF_INET6, temp->str, &smp->data.u.ipv6)) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9967 smp->data.type = SMP_T_IPV6;
Cyril Bonté69fa9922012-10-25 00:01:06 +0200[diff] [blame]9968 break;
9969 }
9970 }
9971 }
9972
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]9973 /* if the header doesn't match an IP address, fetch next one */
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]9974 if (!(smp->flags & SMP_F_NOT_LAST))
9975 return 0;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]9976 }
Willy Tarreaud53e2422012-04-16 17:21:11 +0200[diff] [blame]9977 return ret;
Willy Tarreau106f9792009-09-19 07:54:16 +0200[diff] [blame]9978}
9979
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]9980/* 8. Check on URI PATH. A pointer to the PATH is stored. The path starts at
9981 * the first '/' after the possible hostname, and ends before the possible '?'.
9982 */
9983static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]9984smp_fetch_path(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]9985{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]9986 struct http_txn *txn;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]9987 char *ptr, *end;
Willy Tarreau33a7e692007-06-10 19:45:56 +0200[diff] [blame]9988
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]9989 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreauc11416f2007-06-17 16:58:38 +0200[diff] [blame]9990
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]9991 txn = smp->strm->txn;
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]9992 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]9993 ptr = http_get_path(txn);
9994 if (!ptr)
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]9995 return 0;
9996
9997 /* OK, we got the '/' ! */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]9998 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]9999 smp->data.u.str.str = ptr;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10000
10001 while (ptr < end && *ptr != '?')
10002 ptr++;
10003
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10004 smp->data.u.str.len = ptr - smp->data.u.str.str;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10005 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
Willy Tarreau737b0c12007-06-10 21:28:46 +0200[diff] [blame]10006 return 1;
10007}
10008
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10009/* This produces a concatenation of the first occurrence of the Host header
10010 * followed by the path component if it begins with a slash ('/'). This means
10011 * that '*' will not be added, resulting in exactly the first Host entry.
10012 * If no Host header is found, then the path is returned as-is. The returned
10013 * 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]10014 * The returned sample is of type string.
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10015 */
10016static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10017smp_fetch_base(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10018{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10019 struct http_txn *txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10020 char *ptr, *end, *beg;
10021 struct hdr_ctx ctx;
Willy Tarreau3caf2af2014-06-24 17:27:02 +0200[diff] [blame]10022 struct chunk *temp;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10023
10024 CHECK_HTTP_MESSAGE_FIRST();
10025
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10026 txn = smp->strm->txn;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10027 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10028 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]10029 return smp_fetch_path(args, smp, kw, private);
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10030
10031 /* 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]10032 temp = get_trash_chunk();
10033 memcpy(temp->str, ctx.line + ctx.val, ctx.vlen);
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10034 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10035 smp->data.u.str.str = temp->str;
10036 smp->data.u.str.len = ctx.vlen;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10037
10038 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10039 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]10040 beg = http_get_path(txn);
10041 if (!beg)
10042 beg = end;
10043
10044 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10045
10046 if (beg < ptr && *beg == '/') {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10047 memcpy(smp->data.u.str.str + smp->data.u.str.len, beg, ptr - beg);
10048 smp->data.u.str.len += ptr - beg;
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]10049 }
10050
10051 smp->flags = SMP_F_VOL_1ST;
10052 return 1;
10053}
10054
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10055/* This produces a 32-bit hash of the concatenation of the first occurrence of
10056 * the Host header followed by the path component if it begins with a slash ('/').
10057 * This means that '*' will not be added, resulting in exactly the first Host
10058 * 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]10059 * is hashed using the path hash followed by a full avalanche hash and provides a
10060 * 32-bit integer value. This fetch is useful for tracking per-path activity on
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10061 * high-traffic sites without having to store whole paths.
10062 */
Thierry FOURNIER055b9d52014-07-15 16:11:07 +0200[diff] [blame]10063int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10064smp_fetch_base32(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10065{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10066 struct http_txn *txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10067 struct hdr_ctx ctx;
10068 unsigned int hash = 0;
10069 char *ptr, *beg, *end;
10070 int len;
10071
10072 CHECK_HTTP_MESSAGE_FIRST();
10073
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10074 txn = smp->strm->txn;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10075 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10076 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]10077 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
10078 ptr = ctx.line + ctx.val;
10079 len = ctx.vlen;
10080 while (len--)
10081 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
10082 }
10083
10084 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]10085 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]10086 beg = http_get_path(txn);
10087 if (!beg)
10088 beg = end;
10089
10090 for (ptr = beg; ptr < end && *ptr != '?'; ptr++);
10091
10092 if (beg < ptr && *beg == '/') {
10093 while (beg < ptr)
10094 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
10095 }
10096 hash = full_hash(hash);
10097
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10098 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10099 smp->data.u.sint = hash;
Willy Tarreauab1f7b72012-12-09 13:38:54 +0100[diff] [blame]10100 smp->flags = SMP_F_VOL_1ST;
10101 return 1;
10102}
10103
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10104/* 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]10105 * path as returned by smp_fetch_base32(). The idea is to have per-source and
10106 * per-path counters. The result is a binary block from 8 to 20 bytes depending
10107 * on the source address length. The path hash is stored before the address so
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10108 * that in environments where IPv6 is insignificant, truncating the output to
10109 * 8 bytes would still work.
10110 */
10111static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10112smp_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]10113{
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10114 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10115 struct connection *cli_conn = objt_conn(smp->sess->origin);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10116
10117 if (!cli_conn)
10118 return 0;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10119
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10120 if (!smp_fetch_base32(args, smp, kw, private))
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10121 return 0;
10122
Willy Tarreau47ca5452012-12-23 20:22:19 +0100[diff] [blame]10123 temp = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10124 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
Willy Tarreau5ad6e1d2014-07-15 21:34:06 +0200[diff] [blame]10125 temp->len += sizeof(unsigned int);
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10126
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10127 switch (cli_conn->addr.from.ss_family) {
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10128 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10129 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]10130 temp->len += 4;
10131 break;
10132 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]10133 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]10134 temp->len += 16;
10135 break;
10136 default:
10137 return 0;
10138 }
10139
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10140 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10141 smp->data.type = SMP_T_BIN;
Willy Tarreau4a550602012-12-09 14:53:32 +0100[diff] [blame]10142 return 1;
10143}
10144
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10145/* Extracts the query string, which comes after the question mark '?'. If no
10146 * question mark is found, nothing is returned. Otherwise it returns a sample
10147 * of type string carrying the whole query string.
10148 */
10149static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10150smp_fetch_query(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10151{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10152 struct http_txn *txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10153 char *ptr, *end;
10154
10155 CHECK_HTTP_MESSAGE_FIRST();
10156
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10157 txn = smp->strm->txn;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10158 ptr = txn->req.chn->buf->p + txn->req.sl.rq.u;
10159 end = ptr + txn->req.sl.rq.u_l;
10160
10161 /* look up the '?' */
10162 do {
10163 if (ptr == end)
10164 return 0;
10165 } while (*ptr++ != '?');
10166
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10167 smp->data.type = SMP_T_STR;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10168 smp->data.u.str.str = ptr;
10169 smp->data.u.str.len = end - ptr;
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]10170 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
10171 return 1;
10172}
10173
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10174static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10175smp_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]10176{
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10177 /* Note: hdr_idx.v cannot be NULL in this ACL because the ACL is tagged
10178 * as a layer7 ACL, which involves automatic allocation of hdr_idx.
10179 */
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10180
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10181 CHECK_HTTP_MESSAGE_FIRST_PERM();
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10182
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10183 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10184 smp->data.u.sint = 1;
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]10185 return 1;
10186}
10187
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10188/* return a valid test if the current request is the first one on the connection */
10189static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10190smp_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]10191{
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10192 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10193 smp->data.u.sint = !(smp->strm->txn->flags & TX_NOT_FIRST);
Willy Tarreau7f18e522010-10-22 20:04:13 +0200[diff] [blame]10194 return 1;
10195}
10196
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10197/* Accepts exactly 1 argument of type userlist */
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10198static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10199smp_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]10200{
10201
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10202 if (!args || args->type != ARGT_USR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10203 return 0;
10204
Willy Tarreauc0239e02012-04-16 14:42:55 +0200[diff] [blame]10205 CHECK_HTTP_MESSAGE_FIRST();
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10206
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10207 if (!get_http_auth(smp->strm))
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10208 return 0;
10209
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10210 smp->data.type = SMP_T_BOOL;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10211 smp->data.u.sint = check_user(args->data.usr, smp->strm->txn->auth.user,
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10212 smp->strm->txn->auth.pass);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]10213 return 1;
10214}
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10215
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10216/* Accepts exactly 1 argument of type userlist */
10217static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10218smp_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]10219{
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10220 if (!args || args->type != ARGT_USR)
10221 return 0;
10222
10223 CHECK_HTTP_MESSAGE_FIRST();
10224
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10225 if (!get_http_auth(smp->strm))
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10226 return 0;
10227
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10228 /* if the user does not belong to the userlist or has a wrong password,
10229 * report that it unconditionally does not match. Otherwise we return
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10230 * a string containing the username.
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10231 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10232 if (!check_user(args->data.usr, smp->strm->txn->auth.user,
10233 smp->strm->txn->auth.pass))
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]10234 return 0;
10235
10236 /* pat_match_auth() will need the user list */
10237 smp->ctx.a[0] = args->data.usr;
10238
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10239 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10240 smp->flags = SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10241 smp->data.u.str.str = smp->strm->txn->auth.user;
10242 smp->data.u.str.len = strlen(smp->strm->txn->auth.user);
Willy Tarreau4a3fd4c2012-05-10 23:18:26 +0200[diff] [blame]10243
10244 return 1;
10245}
10246
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10247/* Try to find the next occurrence of a cookie name in a cookie header value.
10248 * The lookup begins at <hdr>. The pointer and size of the next occurrence of
10249 * the cookie value is returned into *value and *value_l, and the function
10250 * returns a pointer to the next pointer to search from if the value was found.
10251 * Otherwise if the cookie was not found, NULL is returned and neither value
10252 * nor value_l are touched. The input <hdr> string should first point to the
10253 * header's value, and the <hdr_end> pointer must point to the first character
10254 * not part of the value. <list> must be non-zero if value may represent a list
10255 * of values (cookie headers). This makes it faster to abort parsing when no
10256 * list is expected.
10257 */
David Carlier4686f792015-09-25 14:10:50 +0100[diff] [blame]10258char *
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10259extract_cookie_value(char *hdr, const char *hdr_end,
10260 char *cookie_name, size_t cookie_name_l, int list,
Willy Tarreau3fb818c2012-04-11 17:21:08 +0200[diff] [blame]10261 char **value, int *value_l)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10262{
10263 char *equal, *att_end, *att_beg, *val_beg, *val_end;
10264 char *next;
10265
10266 /* we search at least a cookie name followed by an equal, and more
10267 * generally something like this :
10268 * Cookie: NAME1 = VALUE 1 ; NAME2 = VALUE2 ; NAME3 = VALUE3\r\n
10269 */
10270 for (att_beg = hdr; att_beg + cookie_name_l + 1 < hdr_end; att_beg = next + 1) {
10271 /* Iterate through all cookies on this line */
10272
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10273 while (att_beg < hdr_end && HTTP_IS_SPHT(*att_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10274 att_beg++;
10275
10276 /* find att_end : this is the first character after the last non
10277 * space before the equal. It may be equal to hdr_end.
10278 */
10279 equal = att_end = att_beg;
10280
10281 while (equal < hdr_end) {
10282 if (*equal == '=' || *equal == ';' || (list && *equal == ','))
10283 break;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10284 if (HTTP_IS_SPHT(*equal++))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10285 continue;
10286 att_end = equal;
10287 }
10288
10289 /* here, <equal> points to '=', a delimitor or the end. <att_end>
10290 * is between <att_beg> and <equal>, both may be identical.
10291 */
10292
10293 /* look for end of cookie if there is an equal sign */
10294 if (equal < hdr_end && *equal == '=') {
10295 /* look for the beginning of the value */
10296 val_beg = equal + 1;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10297 while (val_beg < hdr_end && HTTP_IS_SPHT(*val_beg))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10298 val_beg++;
10299
10300 /* find the end of the value, respecting quotes */
10301 next = find_cookie_value_end(val_beg, hdr_end);
10302
10303 /* make val_end point to the first white space or delimitor after the value */
10304 val_end = next;
Willy Tarreau2235b262016-11-05 15:50:20 +0100[diff] [blame]10305 while (val_end > val_beg && HTTP_IS_SPHT(*(val_end - 1)))
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10306 val_end--;
10307 } else {
10308 val_beg = val_end = next = equal;
10309 }
10310
10311 /* We have nothing to do with attributes beginning with '$'. However,
10312 * they will automatically be removed if a header before them is removed,
10313 * since they're supposed to be linked together.
10314 */
10315 if (*att_beg == '$')
10316 continue;
10317
10318 /* Ignore cookies with no equal sign */
10319 if (equal == next)
10320 continue;
10321
10322 /* Now we have the cookie name between att_beg and att_end, and
10323 * its value between val_beg and val_end.
10324 */
10325
10326 if (att_end - att_beg == cookie_name_l &&
10327 memcmp(att_beg, cookie_name, cookie_name_l) == 0) {
10328 /* let's return this value and indicate where to go on from */
10329 *value = val_beg;
10330 *value_l = val_end - val_beg;
10331 return next + 1;
10332 }
10333
10334 /* Set-Cookie headers only have the name in the first attr=value part */
10335 if (!list)
10336 break;
10337 }
10338
10339 return NULL;
10340}
10341
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10342/* Fetch a captured HTTP request header. The index is the position of
10343 * the "capture" option in the configuration file
10344 */
10345static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10346smp_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]10347{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10348 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10349 int idx;
10350
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10351 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10352 return 0;
10353
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10354 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10355
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10356 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]10357 return 0;
10358
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10359 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10360 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10361 smp->data.u.str.str = smp->strm->req_cap[idx];
10362 smp->data.u.str.len = strlen(smp->strm->req_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10363
10364 return 1;
10365}
10366
10367/* Fetch a captured HTTP response header. The index is the position of
10368 * the "capture" option in the configuration file
10369 */
10370static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10371smp_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]10372{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10373 struct proxy *fe = strm_fe(smp->strm);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10374 int idx;
10375
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10376 if (!args || args->type != ARGT_SINT)
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10377 return 0;
10378
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]10379 idx = args->data.sint;
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10380
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10381 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]10382 return 0;
10383
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10384 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10385 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10386 smp->data.u.str.str = smp->strm->res_cap[idx];
10387 smp->data.u.str.len = strlen(smp->strm->res_cap[idx]);
William Lallemanda43ba4e2014-01-28 18:14:25 +0100[diff] [blame]10388
10389 return 1;
10390}
10391
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10392/* Extracts the METHOD in the HTTP request, the txn->uri should be filled before the call */
10393static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10394smp_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]10395{
10396 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10397 struct http_txn *txn = smp->strm->txn;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10398 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10399
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10400 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10401 return 0;
10402
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10403 ptr = txn->uri;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10404
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10405 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10406 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10407
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10408 temp = get_trash_chunk();
10409 temp->str = txn->uri;
10410 temp->len = ptr - txn->uri;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10411 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10412 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10413 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10414
10415 return 1;
10416
10417}
10418
10419/* Extracts the path in the HTTP request, the txn->uri should be filled before the call */
10420static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10421smp_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]10422{
10423 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10424 struct http_txn *txn = smp->strm->txn;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10425 char *ptr;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10426
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10427 if (!txn || !txn->uri)
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10428 return 0;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10429
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10430 ptr = txn->uri;
10431
10432 while (*ptr != ' ' && *ptr != '\0') /* find first space */
10433 ptr++;
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10434
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10435 if (!*ptr)
10436 return 0;
10437
10438 ptr++; /* skip the space */
10439
10440 temp = get_trash_chunk();
William Lallemand96a77852014-02-05 00:30:02 +0100[diff] [blame]10441 ptr = temp->str = http_get_path_from_string(ptr);
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10442 if (!ptr)
10443 return 0;
10444 while (*ptr != ' ' && *ptr != '\0') /* find space after URI */
10445 ptr++;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10446
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10447 smp->data.u.str = *temp;
10448 smp->data.u.str.len = ptr - temp->str;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10449 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10450 smp->flags = SMP_F_CONST;
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10451
10452 return 1;
10453}
10454
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10455/* Retrieves the HTTP version from the request (either 1.0 or 1.1) and emits it
10456 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10457 */
10458static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10459smp_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]10460{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10461 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10462
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10463 if (!txn || txn->req.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10464 return 0;
10465
10466 if (txn->req.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10467 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10468 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10469 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10470
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10471 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10472 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10473 smp->flags = SMP_F_CONST;
10474 return 1;
10475
10476}
10477
10478/* Retrieves the HTTP version from the response (either 1.0 or 1.1) and emits it
10479 * as a string (either "HTTP/1.0" or "HTTP/1.1").
10480 */
10481static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10482smp_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]10483{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10484 struct http_txn *txn = smp->strm->txn;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10485
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10486 if (!txn || txn->rsp.msg_state < HTTP_MSG_HDR_FIRST)
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10487 return 0;
10488
10489 if (txn->rsp.flags & HTTP_MSGF_VER_11)
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10490 smp->data.u.str.str = "HTTP/1.1";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10491 else
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10492 smp->data.u.str.str = "HTTP/1.0";
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10493
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10494 smp->data.u.str.len = 8;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10495 smp->data.type = SMP_T_STR;
Willy Tarreau3c1b5ec2014-04-24 23:41:57 +0200[diff] [blame]10496 smp->flags = SMP_F_CONST;
10497 return 1;
10498
10499}
10500
William Lallemand65ad6e12014-01-31 15:08:02 +0100[diff] [blame]10501
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10502/* Iterate over all cookies present in a message. The context is stored in
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10503 * 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]10504 * 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]10505 * the direction, multiple cookies may be parsed on the same line or not.
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10506 * 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]10507 * Accepts exactly 1 argument of type string. If the input options indicate
10508 * that no iterating is desired, then only last value is fetched if any.
William Lallemand07c8b242014-05-02 17:11:07 +0200[diff] [blame]10509 * The returned sample is of type CSTR. Can be used to parse cookies in other
10510 * files.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10511 */
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10512int 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]10513{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10514 struct http_txn *txn;
10515 struct hdr_idx *idx;
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10516 struct hdr_ctx *ctx = smp->ctx.a[2];
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10517 const struct http_msg *msg;
10518 const char *hdr_name;
10519 int hdr_name_len;
10520 char *sol;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10521 int occ = 0;
10522 int found = 0;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10523
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10524 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10525 return 0;
10526
Willy Tarreaua890d072013-04-02 12:01:06 +0200[diff] [blame]10527 if (!ctx) {
10528 /* first call */
10529 ctx = &static_hdr_ctx;
10530 ctx->idx = 0;
10531 smp->ctx.a[2] = ctx;
10532 }
10533
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10534 CHECK_HTTP_MESSAGE_FIRST();
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10535
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10536 txn = smp->strm->txn;
10537 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10538
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10539 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10540 msg = &txn->req;
10541 hdr_name = "Cookie";
10542 hdr_name_len = 6;
10543 } else {
10544 msg = &txn->rsp;
10545 hdr_name = "Set-Cookie";
10546 hdr_name_len = 10;
10547 }
10548
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10549 if (!occ && !(smp->opt & SMP_OPT_ITERATE))
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10550 /* no explicit occurrence and single fetch => last cookie by default */
10551 occ = -1;
10552
10553 /* OK so basically here, either we want only one value and it's the
10554 * last one, or we want to iterate over all of them and we fetch the
10555 * next one.
10556 */
10557
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10558 sol = msg->chn->buf->p;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10559 if (!(smp->flags & SMP_F_NOT_LAST)) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10560 /* search for the header from the beginning, we must first initialize
10561 * the search parameters.
10562 */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10563 smp->ctx.a[0] = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10564 ctx->idx = 0;
10565 }
10566
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10567 smp->flags |= SMP_F_VOL_HDR;
10568
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10569 while (1) {
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10570 /* Note: smp->ctx.a[0] == NULL every time we need to fetch a new header */
10571 if (!smp->ctx.a[0]) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10572 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, ctx))
10573 goto out;
10574
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10575 if (ctx->vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10576 continue;
10577
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10578 smp->ctx.a[0] = ctx->line + ctx->val;
10579 smp->ctx.a[1] = smp->ctx.a[0] + ctx->vlen;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10580 }
10581
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10582 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10583 smp->flags |= SMP_F_CONST;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10584 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]10585 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10586 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10587 &smp->data.u.str.str,
10588 &smp->data.u.str.len);
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10589 if (smp->ctx.a[0]) {
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10590 found = 1;
10591 if (occ >= 0) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10592 /* one value was returned into smp->data.u.str.{str,len} */
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10593 smp->flags |= SMP_F_NOT_LAST;
10594 return 1;
10595 }
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10596 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10597 /* if we're looking for last occurrence, let's loop */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10598 }
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10599 /* all cookie headers and values were scanned. If we're looking for the
10600 * last occurrence, we may return it now.
10601 */
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10602 out:
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10603 smp->flags &= ~SMP_F_NOT_LAST;
Willy Tarreau28376d62012-04-26 21:26:10 +0200[diff] [blame]10604 return found;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10605}
10606
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10607/* Iterate over all cookies present in a request to count how many occurrences
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10608 * 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]10609 * multiple cookies may be parsed on the same line. The returned sample is of
10610 * type UINT. Accepts exactly 1 argument of type string.
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10611 */
10612static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10613smp_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]10614{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10615 struct http_txn *txn;
10616 struct hdr_idx *idx;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10617 struct hdr_ctx ctx;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10618 const struct http_msg *msg;
10619 const char *hdr_name;
10620 int hdr_name_len;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10621 int cnt;
10622 char *val_beg, *val_end;
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10623 char *sol;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10624
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10625 if (!args || args->type != ARGT_STR)
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]10626 return 0;
10627
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10628 CHECK_HTTP_MESSAGE_FIRST();
10629
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]10630 txn = smp->strm->txn;
10631 idx = &smp->strm->txn->hdr_idx;
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]10632
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10633 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) {
Willy Tarreaue333ec92012-04-16 16:26:40 +0200[diff] [blame]10634 msg = &txn->req;
10635 hdr_name = "Cookie";
10636 hdr_name_len = 6;
10637 } else {
10638 msg = &txn->rsp;
10639 hdr_name = "Set-Cookie";
10640 hdr_name_len = 10;
10641 }
10642
Willy Tarreau9b28e032012-10-12 23:49:43 +0200[diff] [blame]10643 sol = msg->chn->buf->p;
Willy Tarreau46787ed2012-04-11 17:28:40 +0200[diff] [blame]10644 val_end = val_beg = NULL;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10645 ctx.idx = 0;
10646 cnt = 0;
10647
10648 while (1) {
10649 /* Note: val_beg == NULL every time we need to fetch a new header */
10650 if (!val_beg) {
10651 if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, &ctx))
10652 break;
10653
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10654 if (ctx.vlen < args->data.str.len + 1)
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10655 continue;
10656
10657 val_beg = ctx.line + ctx.val;
10658 val_end = val_beg + ctx.vlen;
10659 }
10660
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10661 smp->data.type = SMP_T_STR;
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]10662 smp->flags |= SMP_F_CONST;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10663 while ((val_beg = extract_cookie_value(val_beg, val_end,
Willy Tarreau24e32d82012-04-23 23:55:44 +0200[diff] [blame]10664 args->data.str.str, args->data.str.len,
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10665 (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ,
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10666 &smp->data.u.str.str,
10667 &smp->data.u.str.len))) {
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10668 cnt++;
10669 }
10670 }
10671
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10672 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10673 smp->data.u.sint = cnt;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]10674 smp->flags |= SMP_F_VOL_HDR;
Willy Tarreau04aa6a92012-04-06 18:57:55 +0200[diff] [blame]10675 return 1;
10676}
10677
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]10678/* Fetch an cookie's integer value. The integer value is returned. It
10679 * takes a mandatory argument of type string. It relies on smp_fetch_cookie().
10680 */
10681static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10682smp_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]10683{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]10684 int ret = smp_fetch_cookie(args, smp, kw, private);
Willy Tarreau51539362012-05-08 12:46:28 +0200[diff] [blame]10685
10686 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10687 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10688 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]10689 }
10690
10691 return ret;
10692}
10693
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]10694/************************************************************************/
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]10695/* The code below is dedicated to sample fetches */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]10696/************************************************************************/
10697
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10698/*
10699 * Given a path string and its length, find the position of beginning of the
10700 * query string. Returns NULL if no query string is found in the path.
10701 *
10702 * Example: if path = "/foo/bar/fubar?yo=mama;ye=daddy", and n = 22:
10703 *
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10704 * find_query_string(path, n, '?') points to "yo=mama;ye=daddy" string.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10705 */
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10706static inline char *find_param_list(char *path, size_t path_l, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10707{
10708 char *p;
Emeric Brun485479d2010-09-23 18:02:19 +0200[diff] [blame]10709
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10710 p = memchr(path, delim, path_l);
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10711 return p ? p + 1 : NULL;
10712}
10713
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10714static inline int is_param_delimiter(char c, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10715{
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10716 return c == '&' || c == ';' || c == delim;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10717}
10718
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10719/* after increasing a pointer value, it can exceed the first buffer
10720 * size. This function transform the value of <ptr> according with
10721 * the expected position. <chunks> is an array of the one or two
10722 * avalaible chunks. The first value is the start of the first chunk,
10723 * the second value if the end+1 of the first chunks. The third value
10724 * is NULL or the start of the second chunk and the fourth value is
10725 * the end+1 of the second chunk. The function returns 1 if does a
10726 * wrap, else returns 0.
10727 */
10728static inline int fix_pointer_if_wrap(const char **chunks, const char **ptr)
10729{
10730 if (*ptr < chunks[1])
10731 return 0;
10732 if (!chunks[2])
10733 return 0;
10734 *ptr = chunks[2] + ( *ptr - chunks[1] );
10735 return 1;
10736}
10737
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10738/*
10739 * Given a url parameter, find the starting position of the first occurence,
10740 * or NULL if the parameter is not found.
10741 *
10742 * Example: if query_string is "yo=mama;ye=daddy" and url_param_name is "ye",
10743 * the function will return query_string+8.
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10744 *
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10745 * Warning: this function returns a pointer that can point to the first chunk
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10746 * or the second chunk. The caller must be check the position before using the
10747 * result.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10748 */
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10749static const char *
10750find_url_param_pos(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10751 const char* url_param_name, size_t url_param_name_l,
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10752 char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10753{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10754 const char *pos, *last, *equal;
10755 const char **bufs = chunks;
10756 int l1, l2;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10757
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10758
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10759 pos = bufs[0];
10760 last = bufs[1];
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10761 while (pos < last) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10762 /* Check the equal. */
10763 equal = pos + url_param_name_l;
10764 if (fix_pointer_if_wrap(chunks, &equal)) {
10765 if (equal >= chunks[3])
10766 return NULL;
10767 } else {
10768 if (equal >= chunks[1])
10769 return NULL;
10770 }
10771 if (*equal == '=') {
10772 if (pos + url_param_name_l > last) {
10773 /* process wrap case, we detect a wrap. In this case, the
10774 * comparison is performed in two parts.
10775 */
10776
10777 /* This is the end, we dont have any other chunk. */
10778 if (bufs != chunks || !bufs[2])
10779 return NULL;
10780
10781 /* Compute the length of each part of the comparison. */
10782 l1 = last - pos;
10783 l2 = url_param_name_l - l1;
10784
10785 /* The second buffer is too short to contain the compared string. */
10786 if (bufs[2] + l2 > bufs[3])
10787 return NULL;
10788
10789 if (memcmp(pos, url_param_name, l1) == 0 &&
10790 memcmp(bufs[2], url_param_name+l1, l2) == 0)
10791 return pos;
10792
10793 /* Perform wrapping and jump the string who fail the comparison. */
10794 bufs += 2;
10795 pos = bufs[0] + l2;
10796 last = bufs[1];
10797
10798 } else {
10799 /* process a simple comparison. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10800 if (memcmp(pos, url_param_name, url_param_name_l) == 0)
10801 return pos;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10802 pos += url_param_name_l + 1;
10803 if (fix_pointer_if_wrap(chunks, &pos))
10804 last = bufs[2];
10805 }
10806 }
10807
10808 while (1) {
10809 /* Look for the next delimiter. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10810 while (pos < last && !is_param_delimiter(*pos, delim))
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10811 pos++;
10812 if (pos < last)
10813 break;
10814 /* process buffer wrapping. */
10815 if (bufs != chunks || !bufs[2])
10816 return NULL;
10817 bufs += 2;
10818 pos = bufs[0];
10819 last = bufs[1];
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10820 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10821 pos++;
10822 }
10823 return NULL;
10824}
10825
10826/*
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]10827 * Given a url parameter name and a query string, find the next value.
10828 * An empty url_param_name matches the first available parameter.
10829 * If the parameter is found, 1 is returned and *vstart / *vend are updated to
10830 * respectively provide a pointer to the value and its end.
10831 * Otherwise, 0 is returned and vstart/vend are not modified.
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10832 */
10833static int
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10834find_next_url_param(const char **chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10835 const char* url_param_name, size_t url_param_name_l,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10836 const char **vstart, const char **vend, char delim)
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10837{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10838 const char *arg_start, *qs_end;
10839 const char *value_start, *value_end;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10840
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10841 arg_start = chunks[0];
10842 qs_end = chunks[1];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10843 if (url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10844 /* Looks for an argument name. */
10845 arg_start = find_url_param_pos(chunks,
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10846 url_param_name, url_param_name_l,
10847 delim);
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10848 /* Check for wrapping. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10849 if (arg_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10850 qs_end = chunks[3];
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10851 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10852 if (!arg_start)
10853 return 0;
10854
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10855 if (!url_param_name_l) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10856 while (1) {
10857 /* looks for the first argument. */
10858 value_start = memchr(arg_start, '=', qs_end - arg_start);
10859 if (!value_start) {
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10860 /* Check for wrapping. */
10861 if (arg_start >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10862 arg_start < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10863 chunks[2]) {
10864 arg_start = chunks[2];
10865 qs_end = chunks[3];
10866 continue;
10867 }
10868 return 0;
10869 }
10870 break;
10871 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10872 value_start++;
10873 }
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10874 else {
10875 /* Jump the argument length. */
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10876 value_start = arg_start + url_param_name_l + 1;
10877
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10878 /* Check for pointer wrapping. */
10879 if (fix_pointer_if_wrap(chunks, &value_start)) {
10880 /* Update the end pointer. */
10881 qs_end = chunks[3];
10882
10883 /* Check for overflow. */
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10884 if (value_start >= qs_end)
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10885 return 0;
10886 }
10887 }
10888
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10889 value_end = value_start;
10890
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10891 while (1) {
10892 while ((value_end < qs_end) && !is_param_delimiter(*value_end, delim))
10893 value_end++;
10894 if (value_end < qs_end)
10895 break;
10896 /* process buffer wrapping. */
10897 if (value_end >= chunks[0] &&
Willy Tarreauf6625822015-12-27 14:51:01 +0100[diff] [blame]10898 value_end < chunks[1] &&
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10899 chunks[2]) {
10900 value_end = chunks[2];
10901 qs_end = chunks[3];
10902 continue;
10903 }
10904 break;
10905 }
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10906
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10907 *vstart = value_start;
10908 *vend = value_end;
Cyril Bontéce1ef4d2015-11-26 21:39:56 +0100[diff] [blame]10909 return 1;
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10910}
10911
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10912/* This scans a URL-encoded query string. It takes an optionally wrapping
10913 * string whose first contigous chunk has its beginning in ctx->a[0] and end
10914 * in ctx->a[1], and the optional second part in (ctx->a[2]..ctx->a[3]). The
10915 * pointers are updated for next iteration before leaving.
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]10916 */
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10917static int
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]10918smp_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]10919{
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10920 const char *vstart, *vend;
10921 struct chunk *temp;
10922 const char **chunks = (const char **)smp->ctx.a;
bedis4c75cca2012-10-05 08:38:24 +0200[diff] [blame]10923
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10924 if (!find_next_url_param(chunks,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]10925 name, name_len,
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10926 &vstart, &vend,
Thierry FOURNIER0948d412015-05-20 15:22:37 +0200[diff] [blame]10927 delim))
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10928 return 0;
10929
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10930 /* Create sample. If the value is contiguous, return the pointer as CONST,
10931 * if the value is wrapped, copy-it in a buffer.
10932 */
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]10933 smp->data.type = SMP_T_STR;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10934 if (chunks[2] &&
10935 vstart >= chunks[0] && vstart <= chunks[1] &&
10936 vend >= chunks[2] && vend <= chunks[3]) {
10937 /* Wrapped case. */
10938 temp = get_trash_chunk();
10939 memcpy(temp->str, vstart, chunks[1] - vstart);
10940 memcpy(temp->str + ( chunks[1] - vstart ), chunks[2], vend - chunks[2]);
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10941 smp->data.u.str.str = temp->str;
10942 smp->data.u.str.len = ( chunks[1] - vstart ) + ( vend - chunks[2] );
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10943 } else {
10944 /* Contiguous case. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]10945 smp->data.u.str.str = (char *)vstart;
10946 smp->data.u.str.len = vend - vstart;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10947 smp->flags = SMP_F_VOL_1ST | SMP_F_CONST;
10948 }
10949
10950 /* Update context, check wrapping. */
10951 chunks[0] = vend;
10952 if (chunks[2] && vend >= chunks[2] && vend <= chunks[3]) {
10953 chunks[1] = chunks[3];
10954 chunks[2] = NULL;
10955 }
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10956
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]10957 if (chunks[0] < chunks[1])
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]10958 smp->flags |= SMP_F_NOT_LAST;
10959
David Cournapeau16023ee2010-12-23 20:55:41 +0900[diff] [blame]10960 return 1;
10961}
10962
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]10963/* This function iterates over each parameter of the query string. It uses
10964 * 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]10965 * parameter. Since it uses smp_fetch_param(), ctx->a[2..3] are both NULL.
10966 * An optional parameter name is passed in args[0], otherwise any parameter is
10967 * considered. It supports an optional delimiter argument for the beginning of
10968 * the string in args[1], which defaults to "?".
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]10969 */
10970static int
10971smp_fetch_url_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
10972{
10973 struct http_msg *msg;
10974 char delim = '?';
10975 const char *name;
10976 int name_len;
10977
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]10978 if (!args ||
10979 (args[0].type && args[0].type != ARGT_STR) ||
10980 (args[1].type && args[1].type != ARGT_STR))
10981 return 0;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]10982
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]10983 name = "";
10984 name_len = 0;
10985 if (args->type == ARGT_STR) {
10986 name = args->data.str.str;
10987 name_len = args->data.str.len;
10988 }
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]10989
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]10990 if (args[1].type)
10991 delim = *args[1].data.str.str;
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]10992
Dragan Dosen26f77e52015-05-25 10:02:11 +0200[diff] [blame]10993 if (!smp->ctx.a[0]) { // first call, find the query string
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]10994 CHECK_HTTP_MESSAGE_FIRST();
10995
10996 msg = &smp->strm->txn->req;
10997
10998 smp->ctx.a[0] = find_param_list(msg->chn->buf->p + msg->sl.rq.u,
10999 msg->sl.rq.u_l, delim);
11000 if (!smp->ctx.a[0])
11001 return 0;
11002
11003 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]11004
11005 /* Assume that the context is filled with NULL pointer
11006 * before the first call.
11007 * smp->ctx.a[2] = NULL;
11008 * smp->ctx.a[3] = NULL;
11009 */
Thierry FOURNIER4fdc74c2015-05-19 14:46:23 +0200[diff] [blame]11010 }
11011
11012 return smp_fetch_param(delim, name, name_len, args, smp, kw, private);
11013}
11014
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11015/* This function iterates over each parameter of the body. This requires
11016 * that the body has been waited for using http-buffer-request. It uses
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11017 * ctx->a[0] and ctx->a[1] to store the beginning and end of the first
11018 * contigous part of the body, and optionally ctx->a[2..3] to reference the
11019 * optional second part if the body wraps at the end of the buffer. An optional
11020 * parameter name is passed in args[0], otherwise any parameter is considered.
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11021 */
11022static int
11023smp_fetch_body_param(const struct arg *args, struct sample *smp, const char *kw, void *private)
11024{
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11025 struct http_msg *msg;
11026 unsigned long len;
11027 unsigned long block1;
11028 char *body;
11029 const char *name;
11030 int name_len;
11031
11032 if (!args || (args[0].type && args[0].type != ARGT_STR))
11033 return 0;
11034
11035 name = "";
11036 name_len = 0;
11037 if (args[0].type == ARGT_STR) {
11038 name = args[0].data.str.str;
11039 name_len = args[0].data.str.len;
11040 }
11041
11042 if (!smp->ctx.a[0]) { // first call, find the query string
11043 CHECK_HTTP_MESSAGE_FIRST();
11044
11045 if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ)
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11046 msg = &smp->strm->txn->req;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11047 else
Willy Tarreaube508f12016-03-10 11:47:01 +0100[diff] [blame]11048 msg = &smp->strm->txn->rsp;
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11049
11050 len = http_body_bytes(msg);
11051 body = b_ptr(msg->chn->buf, -http_data_rewind(msg));
11052
11053 block1 = len;
11054 if (block1 > msg->chn->buf->data + msg->chn->buf->size - body)
11055 block1 = msg->chn->buf->data + msg->chn->buf->size - body;
11056
11057 if (block1 == len) {
11058 /* buffer is not wrapped (or empty) */
11059 smp->ctx.a[0] = body;
11060 smp->ctx.a[1] = body + len;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11061
11062 /* Assume that the context is filled with NULL pointer
11063 * before the first call.
11064 * smp->ctx.a[2] = NULL;
11065 * smp->ctx.a[3] = NULL;
11066 */
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11067 }
11068 else {
11069 /* buffer is wrapped, we need to defragment it */
11070 smp->ctx.a[0] = body;
11071 smp->ctx.a[1] = body + block1;
Thierry FOURNIER8be451c2015-05-20 15:28:12 +0200[diff] [blame]11072 smp->ctx.a[2] = msg->chn->buf->data;
11073 smp->ctx.a[3] = msg->chn->buf->data + ( len - block1 );
Thierry FOURNIERe28c4992015-05-19 14:45:09 +0200[diff] [blame]11074 }
11075 }
11076 return smp_fetch_param('&', name, name_len, args, smp, kw, private);
11077}
11078
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11079/* Return the signed integer value for the specified url parameter (see url_param
11080 * above).
11081 */
11082static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11083smp_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]11084{
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11085 int ret = smp_fetch_url_param(args, smp, kw, private);
Willy Tarreaua9fddca2012-07-31 07:51:48 +0200[diff] [blame]11086
11087 if (ret > 0) {
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11088 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11089 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]11090 }
11091
11092 return ret;
11093}
11094
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11095/* This produces a 32-bit hash of the concatenation of the first occurrence of
11096 * the Host header followed by the path component if it begins with a slash ('/').
11097 * This means that '*' will not be added, resulting in exactly the first Host
11098 * entry. If no Host header is found, then the path is used. The resulting value
11099 * is hashed using the url hash followed by a full avalanche hash and provides a
11100 * 32-bit integer value. This fetch is useful for tracking per-URL activity on
11101 * high-traffic sites without having to store whole paths.
11102 * this differs from the base32 functions in that it includes the url parameters
11103 * as well as the path
11104 */
11105static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11106smp_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]11107{
Willy Tarreau15e91e12015-04-04 00:52:09 +0200[diff] [blame]11108 struct http_txn *txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11109 struct hdr_ctx ctx;
11110 unsigned int hash = 0;
11111 char *ptr, *beg, *end;
11112 int len;
11113
11114 CHECK_HTTP_MESSAGE_FIRST();
11115
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11116 txn = smp->strm->txn;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11117 ctx.idx = 0;
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11118 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]11119 /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
11120 ptr = ctx.line + ctx.val;
11121 len = ctx.vlen;
11122 while (len--)
11123 hash = *(ptr++) + (hash << 6) + (hash << 16) - hash;
11124 }
11125
11126 /* now retrieve the path */
Willy Tarreau877e78d2013-04-07 18:48:08 +0200[diff] [blame]11127 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]11128 beg = http_get_path(txn);
11129 if (!beg)
11130 beg = end;
11131
11132 for (ptr = beg; ptr < end ; ptr++);
11133
11134 if (beg < ptr && *beg == '/') {
11135 while (beg < ptr)
11136 hash = *(beg++) + (hash << 6) + (hash << 16) - hash;
11137 }
11138 hash = full_hash(hash);
11139
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11140 smp->data.type = SMP_T_SINT;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11141 smp->data.u.sint = hash;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11142 smp->flags = SMP_F_VOL_1ST;
11143 return 1;
11144}
11145
11146/* This concatenates the source address with the 32-bit hash of the Host and
11147 * URL as returned by smp_fetch_base32(). The idea is to have per-source and
11148 * per-url counters. The result is a binary block from 8 to 20 bytes depending
11149 * on the source address length. The URL hash is stored before the address so
11150 * that in environments where IPv6 is insignificant, truncating the output to
11151 * 8 bytes would still work.
11152 */
11153static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11154smp_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]11155{
11156 struct chunk *temp;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11157 struct connection *cli_conn = objt_conn(smp->sess->origin);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11158
Dragan Dosendb5af612016-06-16 11:23:01 +0200[diff] [blame]11159 if (!cli_conn)
11160 return 0;
11161
Thierry FOURNIER0786d052015-05-11 15:42:45 +0200[diff] [blame]11162 if (!smp_fetch_url32(args, smp, kw, private))
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11163 return 0;
11164
11165 temp = get_trash_chunk();
Dragan Dosene5f41332016-06-16 11:08:08 +0200[diff] [blame]11166 *(unsigned int *)temp->str = htonl(smp->data.u.sint);
11167 temp->len += sizeof(unsigned int);
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11168
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11169 switch (cli_conn->addr.from.ss_family) {
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11170 case AF_INET:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11171 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]11172 temp->len += 4;
11173 break;
11174 case AF_INET6:
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200[diff] [blame]11175 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]11176 temp->len += 16;
11177 break;
11178 default:
11179 return 0;
11180 }
11181
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11182 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11183 smp->data.type = SMP_T_BIN;
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]11184 return 1;
11185}
11186
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11187/* This function is used to validate the arguments passed to any "hdr" fetch
11188 * keyword. These keywords support an optional positive or negative occurrence
11189 * number. We must ensure that the number is greater than -MAX_HDR_HISTORY. It
11190 * is assumed that the types are already the correct ones. Returns 0 on error,
11191 * non-zero if OK. If <err> is not NULL, it will be filled with a pointer to an
11192 * error message in case of error, that the caller is responsible for freeing.
11193 * The initial location must either be freeable or NULL.
11194 */
Thierry FOURNIER49f45af2014-12-08 19:50:43 +0100[diff] [blame]11195int val_hdr(struct arg *arg, char **err_msg)
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11196{
11197 if (arg && arg[1].type == ARGT_SINT && arg[1].data.sint < -MAX_HDR_HISTORY) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]11198 memprintf(err_msg, "header occurrence must be >= %d", -MAX_HDR_HISTORY);
Willy Tarreau185b5c42012-04-26 15:11:51 +0200[diff] [blame]11199 return 0;
11200 }
11201 return 1;
11202}
11203
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11204/* takes an UINT value on input supposed to represent the time since EPOCH,
11205 * adds an optional offset found in args[0] and emits a string representing
11206 * the date in RFC-1123/5322 format.
11207 */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11208static int sample_conv_http_date(const struct arg *args, struct sample *smp, void *private)
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11209{
Cyril Bontéf78d8962016-01-22 19:40:28 +0100[diff] [blame]11210 const char day[7][4] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11211 const char mon[12][4] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
11212 struct chunk *temp;
11213 struct tm *tm;
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11214 /* 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]11215 time_t curr_date = smp->data.u.sint & 0x007fffffffffffffLL;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11216
11217 /* add offset */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11218 if (args && (args[0].type == ARGT_SINT))
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11219 curr_date += args[0].data.sint;
11220
11221 tm = gmtime(&curr_date);
Thierry FOURNIERfac9ccf2015-07-08 00:15:20 +0200[diff] [blame]11222 if (!tm)
11223 return 0;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11224
11225 temp = get_trash_chunk();
11226 temp->len = snprintf(temp->str, temp->size - temp->len,
11227 "%s, %02d %s %04d %02d:%02d:%02d GMT",
11228 day[tm->tm_wday], tm->tm_mday, mon[tm->tm_mon], 1900+tm->tm_year,
11229 tm->tm_hour, tm->tm_min, tm->tm_sec);
11230
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11231 smp->data.u.str = *temp;
Thierry FOURNIER8c542ca2015-08-19 09:00:18 +0200[diff] [blame]11232 smp->data.type = SMP_T_STR;
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]11233 return 1;
11234}
11235
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11236/* Match language range with language tag. RFC2616 14.4:
11237 *
11238 * A language-range matches a language-tag if it exactly equals
11239 * the tag, or if it exactly equals a prefix of the tag such
11240 * that the first tag character following the prefix is "-".
11241 *
11242 * Return 1 if the strings match, else return 0.
11243 */
11244static inline int language_range_match(const char *range, int range_len,
11245 const char *tag, int tag_len)
11246{
11247 const char *end = range + range_len;
11248 const char *tend = tag + tag_len;
11249 while (range < end) {
11250 if (*range == '-' && tag == tend)
11251 return 1;
11252 if (*range != *tag || tag == tend)
11253 return 0;
11254 range++;
11255 tag++;
11256 }
11257 /* Return true only if the last char of the tag is matched. */
11258 return tag == tend;
11259}
11260
11261/* Arguments: The list of expected value, the number of parts returned and the separator */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11262static int sample_conv_q_prefered(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11263{
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11264 const char *al = smp->data.u.str.str;
11265 const char *end = al + smp->data.u.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11266 const char *token;
11267 int toklen;
11268 int qvalue;
11269 const char *str;
11270 const char *w;
11271 int best_q = 0;
11272
11273 /* Set the constant to the sample, because the output of the
11274 * function will be peek in the constant configuration string.
11275 */
11276 smp->flags |= SMP_F_CONST;
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11277 smp->data.u.str.size = 0;
11278 smp->data.u.str.str = "";
11279 smp->data.u.str.len = 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11280
11281 /* Parse the accept language */
11282 while (1) {
11283
11284 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11285 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11286 al++;
11287 if (al >= end)
11288 break;
11289
11290 /* Start of the fisrt word. */
11291 token = al;
11292
11293 /* Look for separator: isspace(), ',' or ';'. Next value if 0 length word. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11294 while (al < end && *al != ';' && *al != ',' && !isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11295 al++;
11296 if (al == token)
11297 goto expect_comma;
11298
11299 /* Length of the token. */
11300 toklen = al - token;
11301 qvalue = 1000;
11302
11303 /* Check if the token exists in the list. If the token not exists,
11304 * jump to the next token.
11305 */
11306 str = args[0].data.str.str;
11307 w = str;
11308 while (1) {
11309 if (*str == ';' || *str == '\0') {
11310 if (language_range_match(token, toklen, w, str-w))
11311 goto look_for_q;
11312 if (*str == '\0')
11313 goto expect_comma;
11314 w = str + 1;
11315 }
11316 str++;
11317 }
11318 goto expect_comma;
11319
11320look_for_q:
11321
11322 /* Jump spaces, quit if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11323 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11324 al++;
11325 if (al >= end)
11326 goto process_value;
11327
11328 /* If ',' is found, process the result */
11329 if (*al == ',')
11330 goto process_value;
11331
11332 /* If the character is different from ';', look
11333 * for the end of the header part in best effort.
11334 */
11335 if (*al != ';')
11336 goto expect_comma;
11337
11338 /* Assumes that the char is ';', now expect "q=". */
11339 al++;
11340
11341 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11342 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11343 al++;
11344 if (al >= end)
11345 goto process_value;
11346
11347 /* Expect 'q'. If no 'q', continue in best effort */
11348 if (*al != 'q')
11349 goto process_value;
11350 al++;
11351
11352 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11353 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11354 al++;
11355 if (al >= end)
11356 goto process_value;
11357
11358 /* Expect '='. If no '=', continue in best effort */
11359 if (*al != '=')
11360 goto process_value;
11361 al++;
11362
11363 /* Jump spaces, process value if the end is detected. */
Willy Tarreau506c69a2014-07-08 00:59:48 +0200[diff] [blame]11364 while (al < end && isspace((unsigned char)*al))
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11365 al++;
11366 if (al >= end)
11367 goto process_value;
11368
11369 /* Parse the q value. */
11370 qvalue = parse_qvalue(al, &al);
11371
11372process_value:
11373
11374 /* If the new q value is the best q value, then store the associated
11375 * language in the response. If qvalue is the biggest value (1000),
11376 * break the process.
11377 */
11378 if (qvalue > best_q) {
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11379 smp->data.u.str.str = (char *)w;
11380 smp->data.u.str.len = str - w;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11381 if (qvalue >= 1000)
11382 break;
11383 best_q = qvalue;
11384 }
11385
11386expect_comma:
11387
11388 /* Expect comma or end. If the end is detected, quit the loop. */
11389 while (al < end && *al != ',')
11390 al++;
11391 if (al >= end)
11392 break;
11393
11394 /* Comma is found, jump it and restart the analyzer. */
11395 al++;
11396 }
11397
11398 /* Set default value if required. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11399 if (smp->data.u.str.len == 0 && args[1].type == ARGT_STR) {
11400 smp->data.u.str.str = args[1].data.str.str;
11401 smp->data.u.str.len = args[1].data.str.len;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11402 }
11403
11404 /* Return true only if a matching language was found. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11405 return smp->data.u.str.len != 0;
Thierry FOURNIERad903512014-04-11 17:51:01 +0200[diff] [blame]11406}
11407
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11408/* This fetch url-decode any input string. */
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +0200[diff] [blame]11409static int sample_conv_url_dec(const struct arg *args, struct sample *smp, void *private)
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11410{
11411 /* If the constant flag is set or if not size is avalaible at
11412 * the end of the buffer, copy the string in other buffer
11413 * before decoding.
11414 */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11415 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]11416 struct chunk *str = get_trash_chunk();
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11417 memcpy(str->str, smp->data.u.str.str, smp->data.u.str.len);
11418 smp->data.u.str.str = str->str;
11419 smp->data.u.str.size = str->size;
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11420 smp->flags &= ~SMP_F_CONST;
11421 }
11422
11423 /* Add final \0 required by url_decode(), and convert the input string. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11424 smp->data.u.str.str[smp->data.u.str.len] = '\0';
11425 smp->data.u.str.len = url_decode(smp->data.u.str.str);
Christopher Fauleta2584792017-10-05 10:03:12 +0200[diff] [blame]11426 return (smp->data.u.str.len >= 0);
Thierry FOURNIER82ff3c92015-05-07 15:46:20 +0200[diff] [blame]11427}
11428
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11429static int smp_conv_req_capture(const struct arg *args, struct sample *smp, void *private)
11430{
11431 struct proxy *fe = strm_fe(smp->strm);
11432 int idx, i;
11433 struct cap_hdr *hdr;
11434 int len;
11435
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11436 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11437 return 0;
11438
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11439 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11440
11441 /* Check the availibity of the capture id. */
11442 if (idx > fe->nb_req_cap - 1)
11443 return 0;
11444
11445 /* Look for the original configuration. */
11446 for (hdr = fe->req_cap, i = fe->nb_req_cap - 1;
11447 hdr != NULL && i != idx ;
11448 i--, hdr = hdr->next);
11449 if (!hdr)
11450 return 0;
11451
11452 /* check for the memory allocation */
11453 if (smp->strm->req_cap[hdr->index] == NULL)
11454 smp->strm->req_cap[hdr->index] = pool_alloc2(hdr->pool);
11455 if (smp->strm->req_cap[hdr->index] == NULL)
11456 return 0;
11457
11458 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11459 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11460 if (len > hdr->len)
11461 len = hdr->len;
11462
11463 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11464 memcpy(smp->strm->req_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11465 smp->strm->req_cap[idx][len] = '\0';
11466
11467 return 1;
11468}
11469
11470static int smp_conv_res_capture(const struct arg *args, struct sample *smp, void *private)
11471{
11472 struct proxy *fe = strm_fe(smp->strm);
11473 int idx, i;
11474 struct cap_hdr *hdr;
11475 int len;
11476
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11477 if (!args || args->type != ARGT_SINT)
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11478 return 0;
11479
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]11480 idx = args->data.sint;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11481
11482 /* Check the availibity of the capture id. */
11483 if (idx > fe->nb_rsp_cap - 1)
11484 return 0;
11485
11486 /* Look for the original configuration. */
11487 for (hdr = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
11488 hdr != NULL && i != idx ;
11489 i--, hdr = hdr->next);
11490 if (!hdr)
11491 return 0;
11492
11493 /* check for the memory allocation */
11494 if (smp->strm->res_cap[hdr->index] == NULL)
11495 smp->strm->res_cap[hdr->index] = pool_alloc2(hdr->pool);
11496 if (smp->strm->res_cap[hdr->index] == NULL)
11497 return 0;
11498
11499 /* Check length. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11500 len = smp->data.u.str.len;
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11501 if (len > hdr->len)
11502 len = hdr->len;
11503
11504 /* Capture input data. */
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11505 memcpy(smp->strm->res_cap[idx], smp->data.u.str.str, len);
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]11506 smp->strm->res_cap[idx][len] = '\0';
11507
11508 return 1;
11509}
11510
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11511/* This function executes one of the set-{method,path,query,uri} actions. It
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11512 * takes the string from the variable 'replace' with length 'len', then modifies
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11513 * the relevant part of the request line accordingly. Then it updates various
11514 * pointers to the next elements which were moved, and the total buffer length.
11515 * It finds the action to be performed in p[2], previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11516 * parse_set_req_line(). It returns 0 in case of success, -1 in case of internal
11517 * error, though this can be revisited when this code is finally exploited.
11518 *
11519 * 'action' can be '0' to replace method, '1' to replace path, '2' to replace
11520 * query string and 3 to replace uri.
11521 *
11522 * In query string case, the mark question '?' must be set at the start of the
11523 * string by the caller, event if the replacement query string is empty.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11524 */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11525int http_replace_req_line(int action, const char *replace, int len,
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11526 struct proxy *px, struct stream *s)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11527{
Willy Tarreau987e3fb2015-04-04 01:09:08 +0200[diff] [blame]11528 struct http_txn *txn = s->txn;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11529 char *cur_ptr, *cur_end;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11530 int offset = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11531 int delta;
11532
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11533 switch (action) {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11534 case 0: // method
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11535 cur_ptr = s->req.buf->p;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11536 cur_end = cur_ptr + txn->req.sl.rq.m_l;
11537
11538 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11539 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11540 txn->req.sl.rq.m_l += delta;
11541 txn->req.sl.rq.u += delta;
11542 txn->req.sl.rq.v += delta;
11543 break;
11544
11545 case 1: // path
11546 cur_ptr = http_get_path(txn);
11547 if (!cur_ptr)
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11548 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11549
11550 cur_end = cur_ptr;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11551 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]11552 cur_end++;
11553
11554 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11555 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11556 txn->req.sl.rq.u_l += delta;
11557 txn->req.sl.rq.v += delta;
11558 break;
11559
11560 case 2: // query
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11561 offset = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11562 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11563 cur_end = cur_ptr + txn->req.sl.rq.u_l;
11564 while (cur_ptr < cur_end && *cur_ptr != '?')
11565 cur_ptr++;
11566
11567 /* skip the question mark or indicate that we must insert it
11568 * (but only if the format string is not empty then).
11569 */
11570 if (cur_ptr < cur_end)
11571 cur_ptr++;
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11572 else if (len > 1)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11573 offset = 0;
11574
11575 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11576 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11577 txn->req.sl.rq.u_l += delta;
11578 txn->req.sl.rq.v += delta;
11579 break;
11580
11581 case 3: // uri
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100[diff] [blame]11582 cur_ptr = s->req.buf->p + txn->req.sl.rq.u;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11583 cur_end = cur_ptr + txn->req.sl.rq.u_l;
11584
11585 /* adjust req line offsets and lengths */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11586 delta = len - offset - (cur_end - cur_ptr);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11587 txn->req.sl.rq.u_l += delta;
11588 txn->req.sl.rq.v += delta;
11589 break;
11590
11591 default:
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11592 return -1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11593 }
11594
11595 /* commit changes and adjust end of message */
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11596 delta = buffer_replace2(s->req.buf, cur_ptr, cur_end, replace + offset, len - offset);
Thierry FOURNIER7f6192c2015-04-26 18:01:40 +0200[diff] [blame]11597 txn->req.sl.rq.l += delta;
11598 txn->hdr_idx.v[0].len += delta;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11599 http_msg_move_end(&txn->req, delta);
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11600 return 0;
11601}
11602
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11603/* This function replace the HTTP status code and the associated message. The
11604 * variable <status> contains the new status code. This function never fails.
11605 */
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11606void http_set_status(unsigned int status, const char *reason, struct stream *s)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11607{
11608 struct http_txn *txn = s->txn;
11609 char *cur_ptr, *cur_end;
11610 int delta;
11611 char *res;
11612 int c_l;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11613 const char *msg = reason;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11614 int msg_len;
11615
11616 chunk_reset(&trash);
11617
11618 res = ultoa_o(status, trash.str, trash.size);
11619 c_l = res - trash.str;
11620
11621 trash.str[c_l] = ' ';
11622 trash.len = c_l + 1;
11623
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11624 /* Do we have a custom reason format string? */
11625 if (msg == NULL)
11626 msg = get_reason(status);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11627 msg_len = strlen(msg);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11628 strncpy(&trash.str[trash.len], msg, trash.size - trash.len);
11629 trash.len += msg_len;
11630
11631 cur_ptr = s->res.buf->p + txn->rsp.sl.st.c;
11632 cur_end = s->res.buf->p + txn->rsp.sl.st.r + txn->rsp.sl.st.r_l;
11633
11634 /* commit changes and adjust message */
11635 delta = buffer_replace2(s->res.buf, cur_ptr, cur_end, trash.str, trash.len);
11636
11637 /* adjust res line offsets and lengths */
11638 txn->rsp.sl.st.r += c_l - txn->rsp.sl.st.c_l;
11639 txn->rsp.sl.st.c_l = c_l;
11640 txn->rsp.sl.st.r_l = msg_len;
11641
11642 delta = trash.len - (cur_end - cur_ptr);
11643 txn->rsp.sl.st.l += delta;
11644 txn->hdr_idx.v[0].len += delta;
11645 http_msg_move_end(&txn->rsp, delta);
11646}
11647
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11648/* This function executes one of the set-{method,path,query,uri} actions. It
11649 * builds a string in the trash from the specified format string. It finds
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]11650 * the action to be performed in <http.action>, previously filled by function
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11651 * parse_set_req_line(). The replacement action is excuted by the function
Thierry FOURNIER3f4bc652015-08-26 16:23:34 +0200[diff] [blame]11652 * http_action_set_req_line(). It always returns ACT_RET_CONT. If an error
11653 * occurs the action is canceled, but the rule processing continue.
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11654 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11655enum act_return http_action_set_req_line(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11656 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11657{
11658 chunk_reset(&trash);
11659
11660 /* If we have to create a query string, prepare a '?'. */
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11661 if (rule->arg.http.action == 2)
Thierry FOURNIERb77aece2015-03-14 13:55:46 +0100[diff] [blame]11662 trash.str[trash.len++] = '?';
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11663 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]11664
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11665 http_replace_req_line(rule->arg.http.action, trash.str, trash.len, px, s);
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11666 return ACT_RET_CONT;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11667}
11668
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11669/* This function is just a compliant action wrapper for "set-status". */
11670enum act_return action_http_set_status(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11671 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11672{
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11673 http_set_status(rule->arg.status.code, rule->arg.status.reason, s);
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11674 return ACT_RET_CONT;
11675}
11676
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11677/* parse an http-request action among :
11678 * set-method
11679 * set-path
11680 * set-query
11681 * set-uri
11682 *
11683 * All of them accept a single argument of type string representing a log-format.
11684 * The resulting rule makes use of arg->act.p[0..1] to store the log-format list
11685 * 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]11686 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11687 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11688enum act_parse_ret parse_set_req_line(const char **args, int *orig_arg, struct proxy *px,
11689 struct act_rule *rule, char **err)
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11690{
11691 int cur_arg = *orig_arg;
11692
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]11693 rule->action = ACT_CUSTOM;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11694
11695 switch (args[0][4]) {
11696 case 'm' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11697 rule->arg.http.action = 0;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11698 rule->action_ptr = http_action_set_req_line;
11699 break;
11700 case 'p' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11701 rule->arg.http.action = 1;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11702 rule->action_ptr = http_action_set_req_line;
11703 break;
11704 case 'q' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11705 rule->arg.http.action = 2;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11706 rule->action_ptr = http_action_set_req_line;
11707 break;
11708 case 'u' :
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11709 rule->arg.http.action = 3;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11710 rule->action_ptr = http_action_set_req_line;
11711 break;
11712 default:
11713 memprintf(err, "internal error: unhandled action '%s'", args[0]);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11714 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11715 }
11716
11717 if (!*args[cur_arg] ||
11718 (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) {
11719 memprintf(err, "expects exactly 1 argument <format>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11720 return ACT_RET_PRS_ERR;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11721 }
11722
Thierry FOURNIER8855a922015-07-31 08:54:25 +0200[diff] [blame]11723 LIST_INIT(&rule->arg.http.logfmt);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11724 proxy->conf.args.ctx = ARGC_HRQ;
Thierry FOURNIER / OZON.IO59fd5112016-11-22 23:50:02 +0100[diff] [blame]11725 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]11726 (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]11727 return ACT_RET_PRS_ERR;
11728 }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11729
11730 (*orig_arg)++;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11731 return ACT_RET_PRS_OK;
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]11732}
11733
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11734/* parse set-status action:
11735 * This action accepts a single argument of type int representing
11736 * an http status code. It returns ACT_RET_PRS_OK on success,
11737 * ACT_RET_PRS_ERR on error.
11738 */
11739enum act_parse_ret parse_http_set_status(const char **args, int *orig_arg, struct proxy *px,
11740 struct act_rule *rule, char **err)
11741{
11742 char *error;
11743
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]11744 rule->action = ACT_CUSTOM;
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11745 rule->action_ptr = action_http_set_status;
11746
11747 /* Check if an argument is available */
11748 if (!*args[*orig_arg]) {
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11749 memprintf(err, "expects 1 argument: <status>; or 3 arguments: <status> reason <fmt>");
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11750 return ACT_RET_PRS_ERR;
11751 }
11752
11753 /* convert status code as integer */
11754 rule->arg.status.code = strtol(args[*orig_arg], &error, 10);
11755 if (*error != '\0' || rule->arg.status.code < 100 || rule->arg.status.code > 999) {
11756 memprintf(err, "expects an integer status code between 100 and 999");
11757 return ACT_RET_PRS_ERR;
11758 }
11759
11760 (*orig_arg)++;
Robin H. Johnson52f5db22017-01-01 13:10:52 -0800[diff] [blame]11761
11762 /* set custom reason string */
11763 rule->arg.status.reason = NULL; // If null, we use the default reason for the status code.
11764 if (*args[*orig_arg] && strcmp(args[*orig_arg], "reason") == 0 &&
11765 (*args[*orig_arg + 1] && strcmp(args[*orig_arg + 1], "if") != 0 && strcmp(args[*orig_arg + 1], "unless") != 0)) {
11766 (*orig_arg)++;
11767 rule->arg.status.reason = strdup(args[*orig_arg]);
11768 (*orig_arg)++;
11769 }
11770
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]11771 return ACT_RET_PRS_OK;
11772}
11773
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11774/* This function executes the "capture" action. It executes a fetch expression,
11775 * turns the result into a string and puts it in a capture slot. It always
11776 * returns 1. If an error occurs the action is cancelled, but the rule
11777 * processing continues.
11778 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11779enum act_return http_action_req_capture(struct act_rule *rule, struct proxy *px,
Willy Tarreau658b85b2015-09-27 10:00:49 +0200[diff] [blame]11780 struct session *sess, struct stream *s, int flags)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11781{
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11782 struct sample *key;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]11783 struct cap_hdr *h = rule->arg.cap.hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11784 char **cap = s->req_cap;
11785 int len;
11786
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]11787 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]11788 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11789 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11790
11791 if (cap[h->index] == NULL)
11792 cap[h->index] = pool_alloc2(h->pool);
11793
11794 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11795 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11796
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11797 len = key->data.u.str.len;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11798 if (len > h->len)
11799 len = h->len;
11800
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11801 memcpy(cap[h->index], key->data.u.str.str, len);
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11802 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11803 return ACT_RET_CONT;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11804}
11805
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11806/* This function executes the "capture" action and store the result in a
11807 * capture slot if exists. It executes a fetch expression, turns the result
11808 * into a string and puts it in a capture slot. It always returns 1. If an
11809 * error occurs the action is cancelled, but the rule processing continues.
11810 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11811enum 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]11812 struct session *sess, struct stream *s, int flags)
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11813{
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11814 struct sample *key;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11815 struct cap_hdr *h;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11816 char **cap = s->req_cap;
11817 struct proxy *fe = strm_fe(s);
11818 int len;
11819 int i;
11820
11821 /* Look for the original configuration. */
11822 for (h = fe->req_cap, i = fe->nb_req_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]11823 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11824 i--, h = h->next);
11825 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11826 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11827
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]11828 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]11829 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11830 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11831
11832 if (cap[h->index] == NULL)
11833 cap[h->index] = pool_alloc2(h->pool);
11834
11835 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11836 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11837
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11838 len = key->data.u.str.len;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11839 if (len > h->len)
11840 len = h->len;
11841
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]11842 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11843 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11844 return ACT_RET_CONT;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11845}
11846
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11847/* parse an "http-request capture" action. It takes a single argument which is
11848 * a sample fetch expression. It stores the expression into arg->act.p[0] and
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11849 * the allocated hdr_cap struct or the preallocated "id" into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11850 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11851 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11852enum act_parse_ret parse_http_req_capture(const char **args, int *orig_arg, struct proxy *px,
11853 struct act_rule *rule, char **err)
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11854{
11855 struct sample_expr *expr;
11856 struct cap_hdr *hdr;
11857 int cur_arg;
Willy Tarreau3986ac12015-05-08 16:13:42 +0200[diff] [blame]11858 int len = 0;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11859
11860 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
11861 if (strcmp(args[cur_arg], "if") == 0 ||
11862 strcmp(args[cur_arg], "unless") == 0)
11863 break;
11864
11865 if (cur_arg < *orig_arg + 3) {
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11866 memprintf(err, "expects <expression> [ 'len' <length> | id <idx> ]");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11867 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11868 }
11869
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11870 cur_arg = *orig_arg;
11871 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
11872 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11873 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11874
11875 if (!(expr->fetch->val & SMP_VAL_FE_HRQ_HDR)) {
11876 memprintf(err,
11877 "fetch method '%s' extracts information from '%s', none of which is available here",
11878 args[cur_arg-1], sample_src_names(expr->fetch->use));
11879 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11880 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11881 }
11882
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11883 if (!args[cur_arg] || !*args[cur_arg]) {
11884 memprintf(err, "expects 'len or 'id'");
11885 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11886 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11887 }
11888
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11889 if (strcmp(args[cur_arg], "len") == 0) {
11890 cur_arg++;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11891
11892 if (!(px->cap & PR_CAP_FE)) {
11893 memprintf(err, "proxy '%s' has no frontend capability", px->id);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11894 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11895 }
11896
11897 proxy->conf.args.ctx = ARGC_CAP;
11898
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11899 if (!args[cur_arg]) {
11900 memprintf(err, "missing length value");
11901 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11902 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11903 }
11904 /* we copy the table name for now, it will be resolved later */
11905 len = atoi(args[cur_arg]);
11906 if (len <= 0) {
11907 memprintf(err, "length must be > 0");
11908 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11909 return ACT_RET_PRS_ERR;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11910 }
11911 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11912
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11913 if (!len) {
11914 memprintf(err, "a positive 'len' argument is mandatory");
11915 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11916 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11917 }
11918
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]11919 hdr = calloc(1, sizeof(*hdr));
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11920 hdr->next = px->req_cap;
11921 hdr->name = NULL; /* not a header capture */
11922 hdr->namelen = 0;
11923 hdr->len = len;
11924 hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED);
11925 hdr->index = px->nb_req_cap++;
11926
11927 px->req_cap = hdr;
11928 px->to_log |= LW_REQHDR;
11929
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]11930 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11931 rule->action_ptr = http_action_req_capture;
Thierry FOURNIER32b15002015-07-31 08:56:16 +0200[diff] [blame]11932 rule->arg.cap.expr = expr;
11933 rule->arg.cap.hdr = hdr;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11934 }
11935
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11936 else if (strcmp(args[cur_arg], "id") == 0) {
11937 int id;
11938 char *error;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11939
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11940 cur_arg++;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11941
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11942 if (!args[cur_arg]) {
11943 memprintf(err, "missing id value");
11944 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11945 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11946 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11947
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11948 id = strtol(args[cur_arg], &error, 10);
11949 if (*error != '\0') {
11950 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
11951 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11952 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11953 }
11954 cur_arg++;
11955
11956 proxy->conf.args.ctx = ARGC_CAP;
11957
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]11958 rule->action = ACT_CUSTOM;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11959 rule->action_ptr = http_action_req_capture_by_id;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]11960 rule->arg.capid.expr = expr;
11961 rule->arg.capid.idx = id;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11962 }
11963
11964 else {
11965 memprintf(err, "expects 'len' or 'id', found '%s'", args[cur_arg]);
11966 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11967 return ACT_RET_PRS_ERR;
Thierry FOURNIER82bf70d2015-05-26 17:58:29 +0200[diff] [blame]11968 }
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11969
11970 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]11971 return ACT_RET_PRS_OK;
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]11972}
11973
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]11974/* This function executes the "capture" action and store the result in a
11975 * capture slot if exists. It executes a fetch expression, turns the result
11976 * into a string and puts it in a capture slot. It always returns 1. If an
11977 * error occurs the action is cancelled, but the rule processing continues.
11978 */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11979enum 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]11980 struct session *sess, struct stream *s, int flags)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]11981{
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]11982 struct sample *key;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]11983 struct cap_hdr *h;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]11984 char **cap = s->res_cap;
11985 struct proxy *fe = strm_fe(s);
11986 int len;
11987 int i;
11988
11989 /* Look for the original configuration. */
11990 for (h = fe->rsp_cap, i = fe->nb_rsp_cap - 1;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]11991 h != NULL && i != rule->arg.capid.idx ;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]11992 i--, h = h->next);
11993 if (!h)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11994 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]11995
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]11996 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]11997 if (!key)
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]11998 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]11999
12000 if (cap[h->index] == NULL)
12001 cap[h->index] = pool_alloc2(h->pool);
12002
12003 if (cap[h->index] == NULL) /* no more capture memory */
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12004 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12005
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12006 len = key->data.u.str.len;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12007 if (len > h->len)
12008 len = h->len;
12009
Thierry FOURNIER136f9d32015-08-19 09:07:19 +0200[diff] [blame]12010 memcpy(cap[h->index], key->data.u.str.str, len);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12011 cap[h->index][len] = 0;
Thierry FOURNIER24ff6c62015-08-06 08:52:53 +0200[diff] [blame]12012 return ACT_RET_CONT;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12013}
12014
12015/* parse an "http-response capture" action. It takes a single argument which is
12016 * a sample fetch expression. It stores the expression into arg->act.p[0] and
12017 * the allocated hdr_cap struct od the preallocated id into arg->act.p[1].
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12018 * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error.
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12019 */
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12020enum act_parse_ret parse_http_res_capture(const char **args, int *orig_arg, struct proxy *px,
12021 struct act_rule *rule, char **err)
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12022{
12023 struct sample_expr *expr;
12024 int cur_arg;
12025 int id;
12026 char *error;
12027
12028 for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++)
12029 if (strcmp(args[cur_arg], "if") == 0 ||
12030 strcmp(args[cur_arg], "unless") == 0)
12031 break;
12032
12033 if (cur_arg < *orig_arg + 3) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12034 memprintf(err, "expects <expression> id <idx>");
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12035 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12036 }
12037
12038 cur_arg = *orig_arg;
12039 expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args);
12040 if (!expr)
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12041 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12042
12043 if (!(expr->fetch->val & SMP_VAL_FE_HRS_HDR)) {
12044 memprintf(err,
12045 "fetch method '%s' extracts information from '%s', none of which is available here",
12046 args[cur_arg-1], sample_src_names(expr->fetch->use));
12047 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12048 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12049 }
12050
12051 if (!args[cur_arg] || !*args[cur_arg]) {
Willy Tarreau29bdb1c2016-06-24 15:36:34 +0200[diff] [blame]12052 memprintf(err, "expects 'id'");
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12053 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12054 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12055 }
12056
12057 if (strcmp(args[cur_arg], "id") != 0) {
12058 memprintf(err, "expects 'id', found '%s'", args[cur_arg]);
12059 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12060 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12061 }
12062
12063 cur_arg++;
12064
12065 if (!args[cur_arg]) {
12066 memprintf(err, "missing id value");
12067 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12068 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12069 }
12070
12071 id = strtol(args[cur_arg], &error, 10);
12072 if (*error != '\0') {
12073 memprintf(err, "cannot parse id '%s'", args[cur_arg]);
12074 free(expr);
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12075 return ACT_RET_PRS_ERR;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12076 }
12077 cur_arg++;
12078
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12079 proxy->conf.args.ctx = ARGC_CAP;
12080
Thierry FOURNIER42148732015-09-02 17:17:33 +0200[diff] [blame]12081 rule->action = ACT_CUSTOM;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12082 rule->action_ptr = http_action_res_capture_by_id;
Thierry FOURNIERe2097972015-07-31 08:56:35 +0200[diff] [blame]12083 rule->arg.capid.expr = expr;
12084 rule->arg.capid.idx = id;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12085
12086 *orig_arg = cur_arg;
Thierry FOURNIERafa80492015-08-19 09:04:15 +0200[diff] [blame]12087 return ACT_RET_PRS_OK;
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12088}
12089
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12090/*
12091 * Return the struct http_req_action_kw associated to a keyword.
12092 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12093struct action_kw *action_http_req_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12094{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12095 return action_lookup(&http_req_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12096}
12097
12098/*
12099 * Return the struct http_res_action_kw associated to a keyword.
12100 */
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12101struct action_kw *action_http_res_custom(const char *kw)
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12102{
Thierry FOURNIER322a1242015-08-19 09:07:47 +0200[diff] [blame]12103 return action_lookup(&http_res_keywords.list, kw);
William Lallemand73025dd2014-04-24 14:38:37 +0200[diff] [blame]12104}
12105
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12106
12107/* "show errors" handler for the CLI. Returns 0 if wants to continue, 1 to stop
12108 * now.
12109 */
12110static int cli_parse_show_errors(char **args, struct appctx *appctx, void *private)
12111{
12112 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
12113 return 1;
12114
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12115 if (*args[2]) {
12116 struct proxy *px;
12117
12118 px = proxy_find_by_name(args[2], 0, 0);
12119 if (px)
12120 appctx->ctx.errors.iid = px->uuid;
12121 else
12122 appctx->ctx.errors.iid = atoi(args[2]);
12123
12124 if (!appctx->ctx.errors.iid) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +0200[diff] [blame]12125 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12126 appctx->ctx.cli.msg = "No such proxy.\n";
12127 appctx->st0 = CLI_ST_PRINT;
12128 return 1;
12129 }
12130 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12131 else
Willy Tarreau234ba2d2016-11-25 08:39:10 +0100[diff] [blame]12132 appctx->ctx.errors.iid = -1; // dump all proxies
12133
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12134 appctx->ctx.errors.flag = 0;
12135 if (strcmp(args[3], "request") == 0)
12136 appctx->ctx.errors.flag |= 4; // ignore response
12137 else if (strcmp(args[3], "response") == 0)
12138 appctx->ctx.errors.flag |= 2; // ignore request
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12139 appctx->ctx.errors.px = NULL;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12140 return 0;
12141}
12142
12143/* This function dumps all captured errors onto the stream interface's
12144 * read buffer. It returns 0 if the output buffer is full and it needs
12145 * to be called again, otherwise non-zero.
12146 */
12147static int cli_io_handler_show_errors(struct appctx *appctx)
12148{
12149 struct stream_interface *si = appctx->owner;
12150 extern const char *monthname[12];
12151
12152 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
12153 return 1;
12154
12155 chunk_reset(&trash);
12156
12157 if (!appctx->ctx.errors.px) {
12158 /* the function had not been called yet, let's prepare the
12159 * buffer for a response.
12160 */
12161 struct tm tm;
12162
12163 get_localtime(date.tv_sec, &tm);
12164 chunk_appendf(&trash, "Total events captured on [%02d/%s/%04d:%02d:%02d:%02d.%03d] : %u\n",
12165 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12166 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(date.tv_usec/1000),
12167 error_snapshot_id);
12168
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12169 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12170 /* Socket buffer full. Let's try again later from the same point */
12171 si_applet_cant_put(si);
12172 return 0;
12173 }
12174
12175 appctx->ctx.errors.px = proxy;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12176 appctx->ctx.errors.bol = 0;
12177 appctx->ctx.errors.ptr = -1;
12178 }
12179
12180 /* we have two inner loops here, one for the proxy, the other one for
12181 * the buffer.
12182 */
12183 while (appctx->ctx.errors.px) {
12184 struct error_snapshot *es;
12185
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12186 if ((appctx->ctx.errors.flag & 1) == 0) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12187 es = &appctx->ctx.errors.px->invalid_req;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12188 if (appctx->ctx.errors.flag & 2) // skip req
12189 goto next;
12190 }
12191 else {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12192 es = &appctx->ctx.errors.px->invalid_rep;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12193 if (appctx->ctx.errors.flag & 4) // skip resp
12194 goto next;
12195 }
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12196
12197 if (!es->when.tv_sec)
12198 goto next;
12199
12200 if (appctx->ctx.errors.iid >= 0 &&
12201 appctx->ctx.errors.px->uuid != appctx->ctx.errors.iid &&
12202 es->oe->uuid != appctx->ctx.errors.iid)
12203 goto next;
12204
12205 if (appctx->ctx.errors.ptr < 0) {
12206 /* just print headers now */
12207
12208 char pn[INET6_ADDRSTRLEN];
12209 struct tm tm;
12210 int port;
12211
12212 get_localtime(es->when.tv_sec, &tm);
12213 chunk_appendf(&trash, " \n[%02d/%s/%04d:%02d:%02d:%02d.%03d]",
12214 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
12215 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(es->when.tv_usec/1000));
12216
12217 switch (addr_to_str(&es->src, pn, sizeof(pn))) {
12218 case AF_INET:
12219 case AF_INET6:
12220 port = get_host_port(&es->src);
12221 break;
12222 default:
12223 port = 0;
12224 }
12225
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12226 switch (appctx->ctx.errors.flag & 1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12227 case 0:
12228 chunk_appendf(&trash,
12229 " frontend %s (#%d): invalid request\n"
12230 " backend %s (#%d)",
12231 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12232 (es->oe->cap & PR_CAP_BE) ? es->oe->id : "<NONE>",
12233 (es->oe->cap & PR_CAP_BE) ? es->oe->uuid : -1);
12234 break;
12235 case 1:
12236 chunk_appendf(&trash,
12237 " backend %s (#%d): invalid response\n"
12238 " frontend %s (#%d)",
12239 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
12240 es->oe->id, es->oe->uuid);
12241 break;
12242 }
12243
12244 chunk_appendf(&trash,
12245 ", server %s (#%d), event #%u\n"
12246 " src %s:%d, session #%d, session flags 0x%08x\n"
Willy Tarreau10e61cb2017-01-04 14:51:22 +0100[diff] [blame]12247 " HTTP msg state %s(%d), msg flags 0x%08x, tx flags 0x%08x\n"
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12248 " HTTP chunk len %lld bytes, HTTP body len %lld bytes\n"
12249 " buffer flags 0x%08x, out %d bytes, total %lld bytes\n"
12250 " pending %d bytes, wrapping at %d, error at position %d:\n \n",
12251 es->srv ? es->srv->id : "<NONE>", es->srv ? es->srv->puid : -1,
12252 es->ev_id,
12253 pn, port, es->sid, es->s_flags,
Willy Tarreau0da5b3b2017-09-21 09:30:46 +0200[diff] [blame]12254 h1_msg_state_str(es->state), es->state, es->m_flags, es->t_flags,
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12255 es->m_clen, es->m_blen,
12256 es->b_flags, es->b_out, es->b_tot,
12257 es->len, es->b_wrap, es->pos);
12258
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12259 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12260 /* Socket buffer full. Let's try again later from the same point */
12261 si_applet_cant_put(si);
12262 return 0;
12263 }
12264 appctx->ctx.errors.ptr = 0;
12265 appctx->ctx.errors.sid = es->sid;
12266 }
12267
12268 if (appctx->ctx.errors.sid != es->sid) {
12269 /* the snapshot changed while we were dumping it */
12270 chunk_appendf(&trash,
12271 " WARNING! update detected on this snapshot, dump interrupted. Please re-check!\n");
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12272 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12273 si_applet_cant_put(si);
12274 return 0;
12275 }
12276 goto next;
12277 }
12278
12279 /* OK, ptr >= 0, so we have to dump the current line */
12280 while (es->buf && appctx->ctx.errors.ptr < es->len && appctx->ctx.errors.ptr < global.tune.bufsize) {
12281 int newptr;
12282 int newline;
12283
12284 newline = appctx->ctx.errors.bol;
12285 newptr = dump_text_line(&trash, es->buf, global.tune.bufsize, es->len, &newline, appctx->ctx.errors.ptr);
12286 if (newptr == appctx->ctx.errors.ptr)
12287 return 0;
12288
Willy Tarreau06d80a92017-10-19 14:32:15 +0200[diff] [blame]12289 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12290 /* Socket buffer full. Let's try again later from the same point */
12291 si_applet_cant_put(si);
12292 return 0;
12293 }
12294 appctx->ctx.errors.ptr = newptr;
12295 appctx->ctx.errors.bol = newline;
12296 };
12297 next:
12298 appctx->ctx.errors.bol = 0;
12299 appctx->ctx.errors.ptr = -1;
Willy Tarreau35069f82016-11-25 09:16:37 +0100[diff] [blame]12300 appctx->ctx.errors.flag ^= 1;
12301 if (!(appctx->ctx.errors.flag & 1))
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12302 appctx->ctx.errors.px = appctx->ctx.errors.px->next;
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12303 }
12304
12305 /* dump complete */
12306 return 1;
12307}
12308
12309/* register cli keywords */
12310static struct cli_kw_list cli_kws = {{ },{
12311 { { "show", "errors", NULL },
12312 "show errors : report last request and response errors for each proxy",
12313 cli_parse_show_errors, cli_io_handler_show_errors, NULL,
12314 },
12315 {{},}
12316}};
12317
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12318/************************************************************************/
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12319/* All supported ACL keywords must be declared here. */
12320/************************************************************************/
12321
12322/* Note: must not be declared <const> as its list will be overwritten.
12323 * Please take care of keeping this list alphabetically sorted.
12324 */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12325static struct acl_kw_list acl_kws = {ILH, {
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12326 { "base", "base", PAT_MATCH_STR },
12327 { "base_beg", "base", PAT_MATCH_BEG },
12328 { "base_dir", "base", PAT_MATCH_DIR },
12329 { "base_dom", "base", PAT_MATCH_DOM },
12330 { "base_end", "base", PAT_MATCH_END },
12331 { "base_len", "base", PAT_MATCH_LEN },
12332 { "base_reg", "base", PAT_MATCH_REG },
12333 { "base_sub", "base", PAT_MATCH_SUB },
Willy Tarreaua7ad50c2012-04-29 15:39:40 +0200[diff] [blame]12334
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12335 { "cook", "req.cook", PAT_MATCH_STR },
12336 { "cook_beg", "req.cook", PAT_MATCH_BEG },
12337 { "cook_dir", "req.cook", PAT_MATCH_DIR },
12338 { "cook_dom", "req.cook", PAT_MATCH_DOM },
12339 { "cook_end", "req.cook", PAT_MATCH_END },
12340 { "cook_len", "req.cook", PAT_MATCH_LEN },
12341 { "cook_reg", "req.cook", PAT_MATCH_REG },
12342 { "cook_sub", "req.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12343
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12344 { "hdr", "req.hdr", PAT_MATCH_STR },
12345 { "hdr_beg", "req.hdr", PAT_MATCH_BEG },
12346 { "hdr_dir", "req.hdr", PAT_MATCH_DIR },
12347 { "hdr_dom", "req.hdr", PAT_MATCH_DOM },
12348 { "hdr_end", "req.hdr", PAT_MATCH_END },
12349 { "hdr_len", "req.hdr", PAT_MATCH_LEN },
12350 { "hdr_reg", "req.hdr", PAT_MATCH_REG },
12351 { "hdr_sub", "req.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12352
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12353 /* these two declarations uses strings with list storage (in place
12354 * of tree storage). The basic match is PAT_MATCH_STR, but the indexation
12355 * and delete functions are relative to the list management. The parse
12356 * and match method are related to the corresponding fetch methods. This
12357 * is very particular ACL declaration mode.
12358 */
12359 { "http_auth_group", NULL, PAT_MATCH_STR, NULL, pat_idx_list_str, pat_del_list_ptr, NULL, pat_match_auth },
12360 { "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]12361
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12362 { "path", "path", PAT_MATCH_STR },
12363 { "path_beg", "path", PAT_MATCH_BEG },
12364 { "path_dir", "path", PAT_MATCH_DIR },
12365 { "path_dom", "path", PAT_MATCH_DOM },
12366 { "path_end", "path", PAT_MATCH_END },
12367 { "path_len", "path", PAT_MATCH_LEN },
12368 { "path_reg", "path", PAT_MATCH_REG },
12369 { "path_sub", "path", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12370
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12371 { "req_ver", "req.ver", PAT_MATCH_STR },
12372 { "resp_ver", "res.ver", PAT_MATCH_STR },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12373
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12374 { "scook", "res.cook", PAT_MATCH_STR },
12375 { "scook_beg", "res.cook", PAT_MATCH_BEG },
12376 { "scook_dir", "res.cook", PAT_MATCH_DIR },
12377 { "scook_dom", "res.cook", PAT_MATCH_DOM },
12378 { "scook_end", "res.cook", PAT_MATCH_END },
12379 { "scook_len", "res.cook", PAT_MATCH_LEN },
12380 { "scook_reg", "res.cook", PAT_MATCH_REG },
12381 { "scook_sub", "res.cook", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12382
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12383 { "shdr", "res.hdr", PAT_MATCH_STR },
12384 { "shdr_beg", "res.hdr", PAT_MATCH_BEG },
12385 { "shdr_dir", "res.hdr", PAT_MATCH_DIR },
12386 { "shdr_dom", "res.hdr", PAT_MATCH_DOM },
12387 { "shdr_end", "res.hdr", PAT_MATCH_END },
12388 { "shdr_len", "res.hdr", PAT_MATCH_LEN },
12389 { "shdr_reg", "res.hdr", PAT_MATCH_REG },
12390 { "shdr_sub", "res.hdr", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12391
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12392 { "url", "url", PAT_MATCH_STR },
12393 { "url_beg", "url", PAT_MATCH_BEG },
12394 { "url_dir", "url", PAT_MATCH_DIR },
12395 { "url_dom", "url", PAT_MATCH_DOM },
12396 { "url_end", "url", PAT_MATCH_END },
12397 { "url_len", "url", PAT_MATCH_LEN },
12398 { "url_reg", "url", PAT_MATCH_REG },
12399 { "url_sub", "url", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12400
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]12401 { "urlp", "urlp", PAT_MATCH_STR },
12402 { "urlp_beg", "urlp", PAT_MATCH_BEG },
12403 { "urlp_dir", "urlp", PAT_MATCH_DIR },
12404 { "urlp_dom", "urlp", PAT_MATCH_DOM },
12405 { "urlp_end", "urlp", PAT_MATCH_END },
12406 { "urlp_len", "urlp", PAT_MATCH_LEN },
12407 { "urlp_reg", "urlp", PAT_MATCH_REG },
12408 { "urlp_sub", "urlp", PAT_MATCH_SUB },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12409
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100[diff] [blame]12410 { /* END */ },
Willy Tarreau25c1ebc2012-04-25 16:21:44 +0200[diff] [blame]12411}};
12412
12413/************************************************************************/
12414/* All supported pattern keywords must be declared here. */
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12415/************************************************************************/
12416/* Note: must not be declared <const> as its list will be overwritten */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]12417static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12418 { "base", smp_fetch_base, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12419 { "base32", smp_fetch_base32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12420 { "base32+src", smp_fetch_base32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12421
Willy Tarreau87b09662015-04-03 00:22:06 +0200[diff] [blame]12422 /* capture are allocated and are permanent in the stream */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12423 { "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]12424
12425 /* retrieve these captures from the HTTP logs */
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12426 { "capture.req.method", smp_fetch_capture_req_method, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12427 { "capture.req.uri", smp_fetch_capture_req_uri, 0, NULL, SMP_T_STR, SMP_USE_HRQHP },
12428 { "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]12429
Thierry FOURNIERbf65cd42015-07-20 17:45:02 +0200[diff] [blame]12430 { "capture.res.hdr", smp_fetch_capture_header_res, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRSHP },
12431 { "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]12432
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12433 /* cookie is valid in both directions (eg: for "stick ...") but cook*
12434 * are only here to match the ACL's name, are request-only and are used
12435 * for ACL compatibility only.
12436 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12437 { "cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12438 { "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]12439 { "cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12440 { "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]12441
12442 /* hdr is valid in both directions (eg: for "stick ...") but hdr_* are
12443 * only here to match the ACL's name, are request-only and are used for
12444 * ACL compatibility only.
12445 */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12446 { "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]12447 { "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]12448 { "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]12449 { "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]12450
Willy Tarreau0a0daec2013-04-02 22:44:58 +0200[diff] [blame]12451 { "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]12452 { "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]12453 { "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]12454 { "method", smp_fetch_meth, 0, NULL, SMP_T_METH, SMP_USE_HRQHP },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12455 { "path", smp_fetch_path, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau49ad95c2015-01-19 15:06:26 +0100[diff] [blame]12456 { "query", smp_fetch_query, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12457
12458 /* HTTP protocol on the request path */
12459 { "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]12460 { "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]12461
12462 /* HTTP version on the request path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12463 { "req.ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
12464 { "req_ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12465
Willy Tarreaua5910cc2015-05-02 00:46:08 +0200[diff] [blame]12466 { "req.body", smp_fetch_body, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12467 { "req.body_len", smp_fetch_body_len, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
12468 { "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]12469 { "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]12470
Thierry FOURNIERd7d88812017-04-19 15:15:14 +0200[diff] [blame]12471 { "req.hdrs", smp_fetch_hdrs, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Thierry FOURNIER5617dce2017-04-09 05:38:19 +0200[diff] [blame]12472 { "req.hdrs_bin", smp_fetch_hdrs_bin, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
12473
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12474 /* HTTP version on the response path */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12475 { "res.ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
12476 { "resp_ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12477
Willy Tarreau18ed2562013-01-14 15:56:36 +0100[diff] [blame]12478 /* 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]12479 { "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]12480 { "req.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV },
12481 { "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]12482
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12483 { "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]12484 { "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]12485 { "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]12486 { "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]12487 { "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]12488 { "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]12489 { "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]12490
12491 /* 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]12492 { "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]12493 { "res.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12494 { "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]12495
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12496 { "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]12497 { "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]12498 { "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]12499 { "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]12500 { "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]12501 { "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]12502 { "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]12503
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12504 /* scook is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12505 { "scook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12506 { "scook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV },
12507 { "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]12508 { "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]12509
12510 /* shdr is valid only on the response and is used for ACL compatibility */
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12511 { "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]12512 { "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]12513 { "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]12514 { "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]12515
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12516 { "status", smp_fetch_stcode, 0, NULL, SMP_T_SINT, SMP_USE_HRSHP },
Thierry Fournier0e00dca2016-04-07 15:47:40 +0200[diff] [blame]12517 { "unique-id", smp_fetch_uniqueid, 0, NULL, SMP_T_STR, SMP_SRC_L4SRV },
Thierry FOURNIER7654c9f2013-12-17 00:20:33 +0100[diff] [blame]12518 { "url", smp_fetch_url, 0, NULL, SMP_T_STR, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12519 { "url32", smp_fetch_url32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Neil - HAProxy List39c63c52013-11-04 13:48:42 +0000[diff] [blame]12520 { "url32+src", smp_fetch_url32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV },
Willy Tarreau409bcde2013-01-08 00:31:00 +0100[diff] [blame]12521 { "url_ip", smp_fetch_url_ip, 0, NULL, SMP_T_IPV4, SMP_USE_HRQHV },
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12522 { "url_port", smp_fetch_url_port, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV },
Willy Tarreau1ede1da2015-05-07 16:06:18 +0200[diff] [blame]12523 { "url_param", smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV },
12524 { "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]12525 { "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]12526 { /* END */ },
Willy Tarreau4a568972010-05-12 08:08:50 +0200[diff] [blame]12527}};
12528
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12529
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12530/************************************************************************/
12531/* All supported converter keywords must be declared here. */
12532/************************************************************************/
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12533/* Note: must not be declared <const> as its list will be overwritten */
12534static struct sample_conv_kw_list sample_conv_kws = {ILH, {
Thierry FOURNIER07ee64e2015-07-06 23:43:03 +0200[diff] [blame]12535 { "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]12536 { "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]12537 { "capture-req", smp_conv_req_capture, ARG1(1,SINT), NULL, SMP_T_STR, SMP_T_STR},
12538 { "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]12539 { "url_dec", sample_conv_url_dec, 0, NULL, SMP_T_STR, SMP_T_STR},
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12540 { NULL, NULL, 0, 0, 0 },
12541}};
12542
Thierry FOURNIER35ab2752015-05-28 13:22:03 +0200[diff] [blame]12543
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12544/************************************************************************/
12545/* All supported http-request action keywords must be declared here. */
12546/************************************************************************/
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12547struct action_kw_list http_req_actions = {
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12548 .kw = {
Willy Tarreaua9083d02015-05-08 15:27:59 +0200[diff] [blame]12549 { "capture", parse_http_req_capture },
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12550 { "set-method", parse_set_req_line },
12551 { "set-path", parse_set_req_line },
12552 { "set-query", parse_set_req_line },
12553 { "set-uri", parse_set_req_line },
Willy Tarreaucb703b02015-04-03 09:52:01 +0200[diff] [blame]12554 { NULL, NULL }
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12555 }
12556};
12557
Thierry FOURNIER36481b82015-08-19 09:01:53 +0200[diff] [blame]12558struct action_kw_list http_res_actions = {
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12559 .kw = {
12560 { "capture", parse_http_res_capture },
Thierry FOURNIER35d70ef2015-08-26 16:21:56 +0200[diff] [blame]12561 { "set-status", parse_http_set_status },
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12562 { NULL, NULL }
12563 }
12564};
12565
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12566__attribute__((constructor))
12567static void __http_protocol_init(void)
12568{
12569 acl_register_keywords(&acl_kws);
Willy Tarreau12785782012-04-27 21:37:17 +0200[diff] [blame]12570 sample_register_fetches(&sample_fetch_keywords);
Willy Tarreau276fae92013-07-25 14:36:01 +0200[diff] [blame]12571 sample_register_convs(&sample_conv_kws);
Willy Tarreaua0dc23f2015-01-22 20:46:11 +0100[diff] [blame]12572 http_req_keywords_register(&http_req_actions);
Thierry FOURNIERe80fada2015-05-26 18:06:31 +0200[diff] [blame]12573 http_res_keywords_register(&http_res_actions);
Willy Tarreau12207b32016-11-22 19:48:51 +0100[diff] [blame]12574 cli_register_kw(&cli_kws);
Willy Tarreau8797c062007-05-07 00:55:35 +0200[diff] [blame]12575}
12576
12577
Willy Tarreau58f10d72006-12-04 02:26:12 +0100[diff] [blame]12578/*
Willy Tarreaubaaee002006-06-26 02:48:02 +0200[diff] [blame]12579 * Local variables:
12580 * c-indent-level: 8
12581 * c-basic-offset: 8
12582 * End:
12583 */