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30a4f2a8 | 1 | /* |
66f7337b | 2 | * $Id: http.cc,v 1.136 1996/12/13 22:10:30 wessels Exp $ |
30a4f2a8 | 3 | * |
4 | * DEBUG: section 11 Hypertext Transfer Protocol (HTTP) | |
5 | * AUTHOR: Harvest Derived | |
6 | * | |
42c04c16 | 7 | * SQUID Internet Object Cache http://squid.nlanr.net/Squid/ |
30a4f2a8 | 8 | * -------------------------------------------------------- |
9 | * | |
10 | * Squid is the result of efforts by numerous individuals from the | |
11 | * Internet community. Development is led by Duane Wessels of the | |
12 | * National Laboratory for Applied Network Research and funded by | |
13 | * the National Science Foundation. | |
14 | * | |
15 | * This program is free software; you can redistribute it and/or modify | |
16 | * it under the terms of the GNU General Public License as published by | |
17 | * the Free Software Foundation; either version 2 of the License, or | |
18 | * (at your option) any later version. | |
19 | * | |
20 | * This program is distributed in the hope that it will be useful, | |
21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | * GNU General Public License for more details. | |
24 | * | |
25 | * You should have received a copy of the GNU General Public License | |
26 | * along with this program; if not, write to the Free Software | |
27 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
28 | * | |
29 | */ | |
019dd986 | 30 | |
31 | /* | |
30a4f2a8 | 32 | * Copyright (c) 1994, 1995. All rights reserved. |
33 | * | |
34 | * The Harvest software was developed by the Internet Research Task | |
35 | * Force Research Group on Resource Discovery (IRTF-RD): | |
36 | * | |
37 | * Mic Bowman of Transarc Corporation. | |
38 | * Peter Danzig of the University of Southern California. | |
39 | * Darren R. Hardy of the University of Colorado at Boulder. | |
40 | * Udi Manber of the University of Arizona. | |
41 | * Michael F. Schwartz of the University of Colorado at Boulder. | |
42 | * Duane Wessels of the University of Colorado at Boulder. | |
43 | * | |
44 | * This copyright notice applies to software in the Harvest | |
45 | * ``src/'' directory only. Users should consult the individual | |
46 | * copyright notices in the ``components/'' subdirectories for | |
47 | * copyright information about other software bundled with the | |
48 | * Harvest source code distribution. | |
49 | * | |
50 | * TERMS OF USE | |
51 | * | |
52 | * The Harvest software may be used and re-distributed without | |
53 | * charge, provided that the software origin and research team are | |
54 | * cited in any use of the system. Most commonly this is | |
55 | * accomplished by including a link to the Harvest Home Page | |
56 | * (http://harvest.cs.colorado.edu/) from the query page of any | |
57 | * Broker you deploy, as well as in the query result pages. These | |
58 | * links are generated automatically by the standard Broker | |
59 | * software distribution. | |
60 | * | |
61 | * The Harvest software is provided ``as is'', without express or | |
62 | * implied warranty, and with no support nor obligation to assist | |
63 | * in its use, correction, modification or enhancement. We assume | |
64 | * no liability with respect to the infringement of copyrights, | |
65 | * trade secrets, or any patents, and are not responsible for | |
66 | * consequential damages. Proper use of the Harvest software is | |
67 | * entirely the responsibility of the user. | |
68 | * | |
69 | * DERIVATIVE WORKS | |
70 | * | |
71 | * Users may make derivative works from the Harvest software, subject | |
72 | * to the following constraints: | |
73 | * | |
74 | * - You must include the above copyright notice and these | |
75 | * accompanying paragraphs in all forms of derivative works, | |
76 | * and any documentation and other materials related to such | |
77 | * distribution and use acknowledge that the software was | |
78 | * developed at the above institutions. | |
79 | * | |
80 | * - You must notify IRTF-RD regarding your distribution of | |
81 | * the derivative work. | |
82 | * | |
83 | * - You must clearly notify users that your are distributing | |
84 | * a modified version and not the original Harvest software. | |
85 | * | |
86 | * - Any derivative product is also subject to these copyright | |
87 | * and use restrictions. | |
88 | * | |
89 | * Note that the Harvest software is NOT in the public domain. We | |
90 | * retain copyright, as specified above. | |
91 | * | |
92 | * HISTORY OF FREE SOFTWARE STATUS | |
93 | * | |
94 | * Originally we required sites to license the software in cases | |
95 | * where they were going to build commercial products/services | |
96 | * around Harvest. In June 1995 we changed this policy. We now | |
97 | * allow people to use the core Harvest software (the code found in | |
98 | * the Harvest ``src/'' directory) for free. We made this change | |
99 | * in the interest of encouraging the widest possible deployment of | |
100 | * the technology. The Harvest software is really a reference | |
101 | * implementation of a set of protocols and formats, some of which | |
102 | * we intend to standardize. We encourage commercial | |
103 | * re-implementations of code complying to this set of standards. | |
019dd986 | 104 | */ |
44a47c6e | 105 | |
4a83b852 | 106 | /* |
107 | * Anonymizing patch by lutz@as-node.jena.thur.de | |
108 | * have a look into http.anon.c to get more informations. | |
109 | */ | |
110 | ||
44a47c6e | 111 | #include "squid.h" |
090089c4 | 112 | |
234967c9 | 113 | #define HTTP_DELETE_GAP (1<<18) |
090089c4 | 114 | |
4db43fab | 115 | static const char *const w_space = " \t\n\r"; |
6bf8443a | 116 | static const char *const crlf = "\r\n"; |
4db43fab | 117 | |
6fb52f6c | 118 | typedef enum { |
119 | SCC_PUBLIC, | |
120 | SCC_PRIVATE, | |
121 | SCC_NOCACHE, | |
122 | SCC_NOSTORE, | |
123 | SCC_NOTRANSFORM, | |
124 | SCC_MUSTREVALIDATE, | |
125 | SCC_PROXYREVALIDATE, | |
126 | SCC_MAXAGE, | |
127 | SCC_ENUM_END | |
128 | } http_server_cc_t; | |
129 | ||
6bf8443a | 130 | enum { |
6fb52f6c | 131 | CCC_NOCACHE, |
132 | CCC_NOSTORE, | |
133 | CCC_MAXAGE, | |
134 | CCC_MAXSTALE, | |
135 | CCC_MINFRESH, | |
136 | CCC_ONLYIFCACHED, | |
137 | CCC_ENUM_END | |
6bf8443a | 138 | }; |
139 | ||
140 | enum { | |
141 | HDR_IMS, | |
142 | HDR_HOST, | |
df3ac7c0 | 143 | HDR_MAXAGE, |
144 | HDR_SET_COOKIE | |
6bf8443a | 145 | }; |
6fb52f6c | 146 | |
147 | char *HttpServerCCStr[] = | |
148 | { | |
149 | "public", | |
150 | "private", | |
151 | "no-cache", | |
152 | "no-store", | |
153 | "no-transform", | |
154 | "must-revalidate", | |
155 | "proxy-revalidate", | |
156 | "max-age", | |
157 | "NONE" | |
158 | }; | |
159 | ||
24382924 | 160 | static struct { |
30a4f2a8 | 161 | int parsed; |
162 | int date; | |
163 | int lm; | |
164 | int exp; | |
165 | int clen; | |
166 | int ctype; | |
6fb52f6c | 167 | int cc[SCC_ENUM_END]; |
30a4f2a8 | 168 | } ReplyHeaderStats; |
090089c4 | 169 | |
b177367b | 170 | static void httpStateFree _PARAMS((int fd, void *)); |
171 | static void httpReadReplyTimeout _PARAMS((int fd, void *)); | |
172 | static void httpLifetimeExpire _PARAMS((int fd, void *)); | |
67508012 | 173 | static void httpMakePublic _PARAMS((StoreEntry *)); |
174 | static void httpMakePrivate _PARAMS((StoreEntry *)); | |
175 | static void httpCacheNegatively _PARAMS((StoreEntry *)); | |
b177367b | 176 | static void httpReadReply _PARAMS((int fd, void *)); |
67508012 | 177 | static void httpSendComplete _PARAMS((int fd, char *, int, int, void *)); |
b177367b | 178 | static void httpSendRequest _PARAMS((int fd, void *)); |
0ee4272b | 179 | static void httpConnect _PARAMS((int fd, const ipcache_addrs *, void *)); |
e5f6c5c2 | 180 | static void httpConnectDone _PARAMS((int fd, int status, void *data)); |
6bf8443a | 181 | static void httpAppendRequestHeader _PARAMS((char *hdr, const char *line, size_t * sz, size_t max)); |
182 | ||
b8d8561b | 183 | |
b177367b | 184 | static void |
185 | httpStateFree(int fd, void *data) | |
f5558c95 | 186 | { |
b177367b | 187 | HttpStateData *httpState = data; |
0d4d4170 | 188 | if (httpState == NULL) |
b177367b | 189 | return; |
30a4f2a8 | 190 | storeUnlockObject(httpState->entry); |
0d4d4170 | 191 | if (httpState->reply_hdr) { |
192 | put_free_8k_page(httpState->reply_hdr); | |
193 | httpState->reply_hdr = NULL; | |
194 | } | |
30a4f2a8 | 195 | requestUnlink(httpState->request); |
20cc1450 | 196 | requestUnlink(httpState->orig_request); |
0d4d4170 | 197 | xfree(httpState); |
f5558c95 | 198 | } |
199 | ||
b8d8561b | 200 | int |
0ee4272b | 201 | httpCachable(const char *url, int method) |
090089c4 | 202 | { |
090089c4 | 203 | /* GET and HEAD are cachable. Others are not. */ |
6eb42cae | 204 | if (method != METHOD_GET && method != METHOD_HEAD) |
090089c4 | 205 | return 0; |
090089c4 | 206 | /* else cachable */ |
207 | return 1; | |
208 | } | |
209 | ||
210 | /* This will be called when timeout on read. */ | |
b8d8561b | 211 | static void |
b177367b | 212 | httpReadReplyTimeout(int fd, void *data) |
090089c4 | 213 | { |
b177367b | 214 | HttpStateData *httpState = data; |
090089c4 | 215 | StoreEntry *entry = NULL; |
30a4f2a8 | 216 | entry = httpState->entry; |
593c9a75 | 217 | debug(11, 4, "httpReadReplyTimeout: FD %d: '%s'\n", fd, entry->url); |
b8de7ebe | 218 | squid_error_entry(entry, ERR_READ_TIMEOUT, NULL); |
b177367b | 219 | commSetSelect(fd, COMM_SELECT_READ, NULL, NULL, 0); |
0d4d4170 | 220 | comm_close(fd); |
090089c4 | 221 | } |
222 | ||
223 | /* This will be called when socket lifetime is expired. */ | |
b8d8561b | 224 | static void |
b177367b | 225 | httpLifetimeExpire(int fd, void *data) |
090089c4 | 226 | { |
b177367b | 227 | HttpStateData *httpState = data; |
593c9a75 | 228 | StoreEntry *entry = httpState->entry; |
229 | debug(11, 4, "httpLifeTimeExpire: FD %d: '%s'\n", fd, entry->url); | |
ce49f524 | 230 | squid_error_entry(entry, ERR_LIFETIME_EXP, NULL); |
b177367b | 231 | commSetSelect(fd, COMM_SELECT_READ | COMM_SELECT_WRITE, NULL, NULL, 0); |
0d4d4170 | 232 | comm_close(fd); |
090089c4 | 233 | } |
234 | ||
30a4f2a8 | 235 | /* This object can be cached for a long time */ |
b8d8561b | 236 | static void |
237 | httpMakePublic(StoreEntry * entry) | |
30a4f2a8 | 238 | { |
1c481e00 | 239 | if (BIT_TEST(entry->flag, ENTRY_CACHABLE)) |
30a4f2a8 | 240 | storeSetPublicKey(entry); |
241 | } | |
242 | ||
243 | /* This object should never be cached at all */ | |
b8d8561b | 244 | static void |
245 | httpMakePrivate(StoreEntry * entry) | |
30a4f2a8 | 246 | { |
30a4f2a8 | 247 | storeExpireNow(entry); |
1c481e00 | 248 | BIT_RESET(entry->flag, ENTRY_CACHABLE); |
30a4f2a8 | 249 | storeReleaseRequest(entry); /* delete object when not used */ |
250 | } | |
251 | ||
252 | /* This object may be negatively cached */ | |
b8d8561b | 253 | static void |
254 | httpCacheNegatively(StoreEntry * entry) | |
30a4f2a8 | 255 | { |
79b5cc5f | 256 | storeNegativeCache(entry); |
1c481e00 | 257 | if (BIT_TEST(entry->flag, ENTRY_CACHABLE)) |
30a4f2a8 | 258 | storeSetPublicKey(entry); |
30a4f2a8 | 259 | } |
260 | ||
261 | ||
262 | /* Build a reply structure from HTTP reply headers */ | |
b8d8561b | 263 | void |
48f44632 | 264 | httpParseReplyHeaders(const char *buf, struct _http_reply *reply) |
30a4f2a8 | 265 | { |
33b589ff | 266 | char *headers = get_free_4k_page(); |
267 | char *line = get_free_4k_page(); | |
268 | char *end; | |
30a4f2a8 | 269 | char *s = NULL; |
33b589ff | 270 | char *t; |
ca98227c | 271 | time_t delta; |
272 | size_t l; | |
30a4f2a8 | 273 | |
cb24292d | 274 | reply->code = 500; /* default to Internal Server Error */ |
30a4f2a8 | 275 | ReplyHeaderStats.parsed++; |
33b589ff | 276 | xstrncpy(headers, buf, 4096); |
277 | end = mime_headers_end(headers); | |
278 | if (end) | |
279 | reply->hdr_sz = end - headers; | |
280 | for (s = headers; s < end; s += strcspn(s, crlf), s += strspn(s, crlf)) { | |
281 | l = strcspn(s, crlf) + 1; | |
282 | if (l > 4096) | |
283 | l = 4096; | |
284 | xstrncpy(line, s, l); | |
285 | t = line; | |
286 | debug(11, 3, "httpParseReplyHeaders: %s\n", t); | |
287 | if (!strncasecmp(t, "HTTP/", 5)) { | |
288 | sscanf(t + 5, "%lf", &reply->version); | |
289 | if ((t = strchr(t, ' '))) | |
290 | reply->code = atoi(++t); | |
30a4f2a8 | 291 | } else if (!strncasecmp(t, "Content-type:", 13)) { |
33b589ff | 292 | for (t += 13; isspace(*t); t++); |
e91b56e5 | 293 | if ((l = strcspn(t, ";\t ")) > 0) |
294 | *(t + l) = '\0'; | |
33b589ff | 295 | xstrncpy(reply->content_type, t, HTTP_REPLY_FIELD_SZ); |
296 | ReplyHeaderStats.ctype++; | |
30a4f2a8 | 297 | } else if (!strncasecmp(t, "Content-length:", 15)) { |
33b589ff | 298 | for (t += 15; isspace(*t); t++); |
33b589ff | 299 | reply->content_length = atoi(t); |
300 | ReplyHeaderStats.clen++; | |
30a4f2a8 | 301 | } else if (!strncasecmp(t, "Date:", 5)) { |
33b589ff | 302 | for (t += 5; isspace(*t); t++); |
303 | reply->date = parse_rfc1123(t); | |
304 | ReplyHeaderStats.date++; | |
30a4f2a8 | 305 | } else if (!strncasecmp(t, "Expires:", 8)) { |
33b589ff | 306 | for (t += 8; isspace(*t); t++); |
307 | reply->expires = parse_rfc1123(t); | |
308 | /* | |
309 | * The HTTP/1.0 specs says that robust implementations | |
310 | * should consider bad or malformed Expires header as | |
311 | * equivalent to "expires immediately." | |
312 | */ | |
313 | if (reply->expires == -1) | |
314 | reply->expires = squid_curtime; | |
315 | ReplyHeaderStats.exp++; | |
30a4f2a8 | 316 | } else if (!strncasecmp(t, "Last-Modified:", 14)) { |
33b589ff | 317 | for (t += 14; isspace(*t); t++); |
318 | reply->last_modified = parse_rfc1123(t); | |
319 | ReplyHeaderStats.lm++; | |
caebbe00 | 320 | } else if (!strncasecmp(t, "Cache-Control:", 14)) { |
33b589ff | 321 | for (t += 14; isspace(*t); t++); |
4db43fab | 322 | if (!strncasecmp(t, "public", 6)) { |
323 | EBIT_SET(reply->cache_control, SCC_PUBLIC); | |
324 | ReplyHeaderStats.cc[SCC_PUBLIC]++; | |
325 | } else if (!strncasecmp(t, "private", 7)) { | |
326 | EBIT_SET(reply->cache_control, SCC_PRIVATE); | |
327 | ReplyHeaderStats.cc[SCC_PRIVATE]++; | |
328 | } else if (!strncasecmp(t, "no-cache", 8)) { | |
329 | EBIT_SET(reply->cache_control, SCC_NOCACHE); | |
330 | ReplyHeaderStats.cc[SCC_NOCACHE]++; | |
c1764328 | 331 | } else if (!strncasecmp(t, "no-store", 8)) { |
332 | EBIT_SET(reply->cache_control, SCC_NOSTORE); | |
333 | ReplyHeaderStats.cc[SCC_NOSTORE]++; | |
334 | } else if (!strncasecmp(t, "no-transform", 12)) { | |
335 | EBIT_SET(reply->cache_control, SCC_NOTRANSFORM); | |
336 | ReplyHeaderStats.cc[SCC_NOTRANSFORM]++; | |
337 | } else if (!strncasecmp(t, "must-revalidate", 15)) { | |
338 | EBIT_SET(reply->cache_control, SCC_MUSTREVALIDATE); | |
339 | ReplyHeaderStats.cc[SCC_MUSTREVALIDATE]++; | |
340 | } else if (!strncasecmp(t, "proxy-revalidate", 16)) { | |
341 | EBIT_SET(reply->cache_control, SCC_PROXYREVALIDATE); | |
342 | ReplyHeaderStats.cc[SCC_PROXYREVALIDATE]++; | |
4db43fab | 343 | } else if (!strncasecmp(t, "max-age", 7)) { |
344 | if ((t = strchr(t, '='))) { | |
ca98227c | 345 | delta = (time_t) atoi(++t); |
346 | reply->expires = squid_curtime + delta; | |
4db43fab | 347 | EBIT_SET(reply->cache_control, SCC_MAXAGE); |
348 | ReplyHeaderStats.cc[SCC_MAXAGE]++; | |
5df61230 | 349 | } |
caebbe00 | 350 | } |
df3ac7c0 | 351 | } else if (!strncasecmp(t, "Set-Cookie:", 11)) { |
352 | EBIT_SET(reply->misc_headers, HDR_SET_COOKIE); | |
30a4f2a8 | 353 | } |
30a4f2a8 | 354 | } |
33b589ff | 355 | put_free_4k_page(headers); |
356 | put_free_4k_page(line); | |
30a4f2a8 | 357 | } |
358 | ||
090089c4 | 359 | |
b8d8561b | 360 | void |
0ee4272b | 361 | httpProcessReplyHeader(HttpStateData * httpState, const char *buf, int size) |
f5558c95 | 362 | { |
363 | char *t = NULL; | |
30a4f2a8 | 364 | StoreEntry *entry = httpState->entry; |
d3fb4dea | 365 | int room; |
366 | int hdr_len; | |
33b589ff | 367 | struct _http_reply *reply = entry->mem_obj->reply; |
d3fb4dea | 368 | |
ed85b771 | 369 | debug(11, 3, "httpProcessReplyHeader: key '%s'\n", entry->key); |
f5558c95 | 370 | |
30a4f2a8 | 371 | if (httpState->reply_hdr == NULL) { |
372 | httpState->reply_hdr = get_free_8k_page(); | |
373 | memset(httpState->reply_hdr, '\0', 8192); | |
f5558c95 | 374 | } |
30a4f2a8 | 375 | if (httpState->reply_hdr_state == 0) { |
376 | hdr_len = strlen(httpState->reply_hdr); | |
ed85b771 | 377 | room = 8191 - hdr_len; |
30a4f2a8 | 378 | strncat(httpState->reply_hdr, buf, room < size ? room : size); |
d3fb4dea | 379 | hdr_len += room < size ? room : size; |
30a4f2a8 | 380 | if (hdr_len > 4 && strncmp(httpState->reply_hdr, "HTTP/", 5)) { |
60bf30cb | 381 | debug(11, 3, "httpProcessReplyHeader: Non-HTTP-compliant header: '%s'\n", entry->key); |
30a4f2a8 | 382 | httpState->reply_hdr_state += 2; |
33b589ff | 383 | reply->code = 555; |
ed85b771 | 384 | return; |
d3fb4dea | 385 | } |
d1a43e28 | 386 | t = httpState->reply_hdr + hdr_len; |
387 | /* headers can be incomplete only if object still arriving */ | |
f86a6a46 | 388 | if (!httpState->eof) |
d1a43e28 | 389 | if ((t = mime_headers_end(httpState->reply_hdr)) == NULL) |
390 | return; /* headers not complete */ | |
2285407f | 391 | *t = '\0'; |
30a4f2a8 | 392 | httpState->reply_hdr_state++; |
f5558c95 | 393 | } |
30a4f2a8 | 394 | if (httpState->reply_hdr_state == 1) { |
395 | httpState->reply_hdr_state++; | |
019dd986 | 396 | debug(11, 9, "GOT HTTP REPLY HDR:\n---------\n%s\n----------\n", |
30a4f2a8 | 397 | httpState->reply_hdr); |
398 | /* Parse headers into reply structure */ | |
48f44632 | 399 | httpParseReplyHeaders(httpState->reply_hdr, reply); |
ca98227c | 400 | storeTimestampsSet(entry); |
30a4f2a8 | 401 | /* Check if object is cacheable or not based on reply code */ |
cb24292d | 402 | debug(11, 3, "httpProcessReplyHeader: HTTP CODE: %d\n", reply->code); |
2285407f | 403 | switch (reply->code) { |
30a4f2a8 | 404 | /* Responses that are cacheable */ |
f5558c95 | 405 | case 200: /* OK */ |
4e38e700 | 406 | case 203: /* Non-Authoritative Information */ |
407 | case 300: /* Multiple Choices */ | |
f5558c95 | 408 | case 301: /* Moved Permanently */ |
4e38e700 | 409 | case 410: /* Gone */ |
30a4f2a8 | 410 | /* don't cache objects from neighbors w/o LMT, Date, or Expires */ |
6fb52f6c | 411 | if (EBIT_TEST(reply->cache_control, SCC_PRIVATE)) |
caebbe00 | 412 | httpMakePrivate(entry); |
6fb52f6c | 413 | else if (EBIT_TEST(reply->cache_control, SCC_NOCACHE)) |
caebbe00 | 414 | httpMakePrivate(entry); |
df3ac7c0 | 415 | else if (EBIT_TEST(reply->misc_headers, HDR_SET_COOKIE)) |
416 | httpMakePrivate(entry); | |
ca98227c | 417 | else if (reply->date > -1) |
30a4f2a8 | 418 | httpMakePublic(entry); |
ca98227c | 419 | else if (reply->last_modified > -1) |
30a4f2a8 | 420 | httpMakePublic(entry); |
421 | else if (!httpState->neighbor) | |
422 | httpMakePublic(entry); | |
ca98227c | 423 | else if (reply->expires > -1) |
30a4f2a8 | 424 | httpMakePublic(entry); |
af00901c | 425 | else if (entry->mem_obj->request->protocol != PROTO_HTTP) |
426 | /* XXX Remove this check after a while. DW 8/21/96 | |
427 | * We won't keep some FTP objects from neighbors running | |
428 | * 1.0.8 or earlier because their ftpget's don't | |
429 | * add a Date: field */ | |
430 | httpMakePublic(entry); | |
30a4f2a8 | 431 | else |
432 | httpMakePrivate(entry); | |
433 | break; | |
434 | /* Responses that only are cacheable if the server says so */ | |
435 | case 302: /* Moved temporarily */ | |
ca98227c | 436 | if (reply->expires > -1) |
30a4f2a8 | 437 | httpMakePublic(entry); |
438 | else | |
439 | httpMakePrivate(entry); | |
f5558c95 | 440 | break; |
30a4f2a8 | 441 | /* Errors can be negatively cached */ |
442 | case 204: /* No Content */ | |
443 | case 305: /* Use Proxy (proxy redirect) */ | |
444 | case 400: /* Bad Request */ | |
445 | case 403: /* Forbidden */ | |
446 | case 404: /* Not Found */ | |
447 | case 405: /* Method Now Allowed */ | |
448 | case 414: /* Request-URI Too Long */ | |
449 | case 500: /* Internal Server Error */ | |
450 | case 501: /* Not Implemented */ | |
451 | case 502: /* Bad Gateway */ | |
452 | case 503: /* Service Unavailable */ | |
453 | case 504: /* Gateway Timeout */ | |
851eeef7 | 454 | httpCacheNegatively(entry); |
30a4f2a8 | 455 | break; |
456 | /* Some responses can never be cached */ | |
457 | case 303: /* See Other */ | |
234967c9 | 458 | case 304: /* Not Modified */ |
4e38e700 | 459 | case 401: /* Unauthorized */ |
460 | case 407: /* Proxy Authentication Required */ | |
30a4f2a8 | 461 | default: /* Unknown status code */ |
462 | httpMakePrivate(entry); | |
4e38e700 | 463 | break; |
f5558c95 | 464 | } |
465 | } | |
466 | } | |
467 | ||
090089c4 | 468 | |
469 | /* This will be called when data is ready to be read from fd. Read until | |
470 | * error or connection closed. */ | |
f5558c95 | 471 | /* XXX this function is too long! */ |
b8d8561b | 472 | static void |
b177367b | 473 | httpReadReply(int fd, void *data) |
090089c4 | 474 | { |
b177367b | 475 | HttpStateData *httpState = data; |
95d659f0 | 476 | LOCAL_ARRAY(char, buf, SQUID_TCP_SO_RCVBUF); |
090089c4 | 477 | int len; |
30a4f2a8 | 478 | int bin; |
090089c4 | 479 | int clen; |
480 | int off; | |
481 | StoreEntry *entry = NULL; | |
482 | ||
30a4f2a8 | 483 | entry = httpState->entry; |
234967c9 | 484 | if (entry->flag & DELETE_BEHIND && !storeClientWaiting(entry)) { |
485 | /* we can terminate connection right now */ | |
486 | squid_error_entry(entry, ERR_NO_CLIENTS_BIG_OBJ, NULL); | |
487 | comm_close(fd); | |
488 | return; | |
489 | } | |
490 | /* check if we want to defer reading */ | |
491 | clen = entry->mem_obj->e_current_len; | |
492 | off = storeGetLowestReaderOffset(entry); | |
493 | if ((clen - off) > HTTP_DELETE_GAP) { | |
30a4f2a8 | 494 | if (entry->flag & CLIENT_ABORT_REQUEST) { |
495 | squid_error_entry(entry, ERR_CLIENT_ABORT, NULL); | |
496 | comm_close(fd); | |
497 | return; | |
498 | } | |
499 | IOStats.Http.reads_deferred++; | |
234967c9 | 500 | debug(11, 3, "httpReadReply: Read deferred for Object: %s\n", |
501 | entry->url); | |
502 | debug(11, 3, " Current Gap: %d bytes\n", clen - off); | |
503 | /* reschedule, so it will be automatically reactivated | |
504 | * when Gap is big enough. */ | |
b177367b | 505 | commSetSelect(fd, |
234967c9 | 506 | COMM_SELECT_READ, |
b177367b | 507 | httpReadReply, |
508 | (void *) httpState, 0); | |
30a4f2a8 | 509 | /* disable read timeout until we are below the GAP */ |
b177367b | 510 | commSetSelect(fd, |
234967c9 | 511 | COMM_SELECT_TIMEOUT, |
b177367b | 512 | NULL, |
234967c9 | 513 | (void *) NULL, |
514 | (time_t) 0); | |
56fa4cad | 515 | if (!BIT_TEST(entry->flag, READ_DEFERRED)) { |
516 | comm_set_fd_lifetime(fd, 3600); /* limit during deferring */ | |
517 | BIT_SET(entry->flag, READ_DEFERRED); | |
518 | } | |
234967c9 | 519 | /* dont try reading again for a while */ |
b6f794d6 | 520 | comm_set_stall(fd, Config.stallDelay); |
234967c9 | 521 | return; |
56fa4cad | 522 | } else { |
523 | BIT_RESET(entry->flag, READ_DEFERRED); | |
090089c4 | 524 | } |
1513873c | 525 | errno = 0; |
30a4f2a8 | 526 | len = read(fd, buf, SQUID_TCP_SO_RCVBUF); |
019dd986 | 527 | debug(11, 5, "httpReadReply: FD %d: len %d.\n", fd, len); |
30a4f2a8 | 528 | comm_set_fd_lifetime(fd, 86400); /* extend after good read */ |
529 | if (len > 0) { | |
4a63c85f | 530 | IOStats.Http.reads++; |
30a4f2a8 | 531 | for (clen = len - 1, bin = 0; clen; bin++) |
532 | clen >>= 1; | |
533 | IOStats.Http.read_hist[bin]++; | |
534 | } | |
ba718c8f | 535 | if (len < 0) { |
881f7a6c | 536 | debug(50, 2, "httpReadReply: FD %d: read failure: %s.\n", |
090089c4 | 537 | fd, xstrerror()); |
ba718c8f | 538 | if (errno == EAGAIN || errno == EWOULDBLOCK) { |
1513873c | 539 | /* reinstall handlers */ |
6fe6313d | 540 | /* XXX This may loop forever */ |
b177367b | 541 | commSetSelect(fd, COMM_SELECT_READ, |
542 | httpReadReply, (void *) httpState, 0); | |
543 | commSetSelect(fd, COMM_SELECT_TIMEOUT, | |
544 | httpReadReplyTimeout, (void *) httpState, Config.readTimeout); | |
090089c4 | 545 | } else { |
1c481e00 | 546 | BIT_RESET(entry->flag, ENTRY_CACHABLE); |
2daae136 | 547 | storeReleaseRequest(entry); |
b8de7ebe | 548 | squid_error_entry(entry, ERR_READ_ERROR, xstrerror()); |
0d4d4170 | 549 | comm_close(fd); |
090089c4 | 550 | } |
ba718c8f | 551 | } else if (len == 0 && entry->mem_obj->e_current_len == 0) { |
f86a6a46 | 552 | httpState->eof = 1; |
b8de7ebe | 553 | squid_error_entry(entry, |
ba718c8f | 554 | ERR_ZERO_SIZE_OBJECT, |
555 | errno ? xstrerror() : NULL); | |
0d4d4170 | 556 | comm_close(fd); |
090089c4 | 557 | } else if (len == 0) { |
558 | /* Connection closed; retrieval done. */ | |
f86a6a46 | 559 | httpState->eof = 1; |
d1a43e28 | 560 | if (httpState->reply_hdr_state < 2) |
561 | httpProcessReplyHeader(httpState, buf, len); | |
562 | storeAppend(entry, buf, len); /* invoke handlers! */ | |
563 | storeComplete(entry); /* deallocates mem_obj->request */ | |
0d4d4170 | 564 | comm_close(fd); |
090089c4 | 565 | } else if (entry->flag & CLIENT_ABORT_REQUEST) { |
566 | /* append the last bit of info we get */ | |
567 | storeAppend(entry, buf, len); | |
b8de7ebe | 568 | squid_error_entry(entry, ERR_CLIENT_ABORT, NULL); |
0d4d4170 | 569 | comm_close(fd); |
090089c4 | 570 | } else { |
d1a43e28 | 571 | if (httpState->reply_hdr_state < 2) |
30a4f2a8 | 572 | httpProcessReplyHeader(httpState, buf, len); |
620da955 | 573 | storeAppend(entry, buf, len); |
b177367b | 574 | commSetSelect(fd, |
ba718c8f | 575 | COMM_SELECT_READ, |
b177367b | 576 | httpReadReply, |
577 | (void *) httpState, 0); | |
578 | commSetSelect(fd, | |
ba718c8f | 579 | COMM_SELECT_TIMEOUT, |
b177367b | 580 | httpReadReplyTimeout, |
30a4f2a8 | 581 | (void *) httpState, |
b6f794d6 | 582 | Config.readTimeout); |
090089c4 | 583 | } |
584 | } | |
585 | ||
586 | /* This will be called when request write is complete. Schedule read of | |
587 | * reply. */ | |
b8d8561b | 588 | static void |
589 | httpSendComplete(int fd, char *buf, int size, int errflag, void *data) | |
090089c4 | 590 | { |
30a4f2a8 | 591 | HttpStateData *httpState = data; |
090089c4 | 592 | StoreEntry *entry = NULL; |
593 | ||
30a4f2a8 | 594 | entry = httpState->entry; |
019dd986 | 595 | debug(11, 5, "httpSendComplete: FD %d: size %d: errflag %d.\n", |
090089c4 | 596 | fd, size, errflag); |
597 | ||
090089c4 | 598 | if (errflag) { |
b8de7ebe | 599 | squid_error_entry(entry, ERR_CONNECT_FAIL, xstrerror()); |
0d4d4170 | 600 | comm_close(fd); |
090089c4 | 601 | return; |
602 | } else { | |
603 | /* Schedule read reply. */ | |
b177367b | 604 | commSetSelect(fd, |
019dd986 | 605 | COMM_SELECT_READ, |
b177367b | 606 | httpReadReply, |
607 | (void *) httpState, 0); | |
608 | commSetSelect(fd, | |
019dd986 | 609 | COMM_SELECT_TIMEOUT, |
b177367b | 610 | httpReadReplyTimeout, |
30a4f2a8 | 611 | (void *) httpState, |
b6f794d6 | 612 | Config.readTimeout); |
30a4f2a8 | 613 | comm_set_fd_lifetime(fd, 86400); /* extend lifetime */ |
090089c4 | 614 | } |
615 | } | |
616 | ||
4a83b852 | 617 | #ifdef USE_ANONYMIZER |
618 | #include "http-anon.c" | |
619 | #endif | |
620 | ||
6bf8443a | 621 | static void |
622 | httpAppendRequestHeader(char *hdr, const char *line, size_t * sz, size_t max) | |
623 | { | |
624 | size_t n = *sz + strlen(line) + 2; | |
625 | if (n >= max) | |
626 | return; | |
4a83b852 | 627 | #ifdef USE_ANONYMIZER |
628 | if (!httpAnonSearchHeaderField(http_anon_allowed_header, line)) { | |
629 | debug(11, 5, "httpAppendRequestHeader: removed for anonymity: <%s>\n", | |
4e5c19a7 | 630 | line); |
4a83b852 | 631 | return; |
632 | } | |
633 | #endif | |
634 | /* allowed header, explicitly known to be not dangerous */ | |
6bf8443a | 635 | debug(11, 5, "httpAppendRequestHeader: %s\n", line); |
929545fe | 636 | strcpy(hdr + (*sz), line); |
6bf8443a | 637 | strcat(hdr + (*sz), crlf); |
638 | *sz = n; | |
639 | } | |
640 | ||
641 | size_t | |
642 | httpBuildRequestHeader(request_t * request, | |
643 | request_t * orig_request, | |
644 | StoreEntry * entry, | |
645 | char *hdr_in, | |
646 | size_t * in_len, | |
647 | char *hdr_out, | |
648 | size_t out_sz, | |
649 | int cfd) | |
650 | { | |
651 | char *xbuf = get_free_4k_page(); | |
872b720f | 652 | char *ybuf = get_free_8k_page(); |
6bf8443a | 653 | char *viabuf = get_free_4k_page(); |
654 | char *fwdbuf = get_free_4k_page(); | |
655 | char *t = NULL; | |
656 | char *s = NULL; | |
657 | char *end = NULL; | |
658 | size_t len = 0; | |
659 | size_t hdr_len = 0; | |
660 | size_t in_sz; | |
6bf8443a | 661 | size_t l; |
662 | int hdr_flags = 0; | |
663 | const char *url = NULL; | |
664 | ||
665 | debug(11, 3, "httpBuildRequestHeader: INPUT:\n%s\n", hdr_in); | |
666 | xstrncpy(fwdbuf, "X-Forwarded-For: ", 4096); | |
667 | xstrncpy(viabuf, "Via: ", 4096); | |
668 | sprintf(ybuf, "%s %s HTTP/1.0", | |
669 | RequestMethodStr[request->method], | |
670 | *request->urlpath ? request->urlpath : "/"); | |
671 | httpAppendRequestHeader(hdr_out, ybuf, &len, out_sz); | |
672 | /* Add IMS header */ | |
673 | if (entry && entry->lastmod && request->method == METHOD_GET) { | |
674 | sprintf(ybuf, "If-Modified-Since: %s", mkrfc1123(entry->lastmod)); | |
675 | httpAppendRequestHeader(hdr_out, ybuf, &len, out_sz); | |
676 | EBIT_SET(hdr_flags, HDR_IMS); | |
677 | } | |
00c59270 | 678 | end = mime_headers_end(hdr_in); |
6bf8443a | 679 | in_sz = strlen(hdr_in); |
680 | for (t = hdr_in; t < end; t += strcspn(t, crlf), t += strspn(t, crlf)) { | |
681 | hdr_len = t - hdr_in; | |
6bf8443a | 682 | l = strcspn(t, crlf) + 1; |
683 | if (l > 4096) | |
684 | l = 4096; | |
685 | xstrncpy(xbuf, t, l); | |
a7011ca4 | 686 | debug(11, 5, "httpBuildRequestHeader: %s\n", xbuf); |
6bf8443a | 687 | if (strncasecmp(xbuf, "Proxy-Connection:", 17) == 0) |
688 | continue; | |
689 | if (strncasecmp(xbuf, "Connection:", 11) == 0) | |
690 | continue; | |
66f7337b | 691 | if (strncasecmp(xbuf, "Host:", 5) == 0) { |
6bf8443a | 692 | EBIT_SET(hdr_flags, HDR_HOST); |
66f7337b | 693 | } else if (strncasecmp(xbuf, "Cache-Control:", 14) == 0) { |
6bf8443a | 694 | for (s = xbuf + 14; *s && isspace(*s); s++); |
695 | if (strncasecmp(s, "Max-age=", 8) == 0) | |
696 | EBIT_SET(hdr_flags, HDR_MAXAGE); | |
66f7337b | 697 | } else if (strncasecmp(xbuf, "Via:", 4) == 0) { |
6bf8443a | 698 | for (s = xbuf + 4; *s && isspace(*s); s++); |
699 | if (strlen(viabuf) + strlen(s) < 4000) | |
700 | strcat(viabuf, s); | |
701 | strcat(viabuf, ", "); | |
702 | continue; | |
66f7337b | 703 | } else if (strncasecmp(xbuf, "X-Forwarded-For:", 16) == 0) { |
6bf8443a | 704 | for (s = xbuf + 16; *s && isspace(*s); s++); |
705 | if (strlen(fwdbuf) + strlen(s) < 4000) | |
706 | strcat(fwdbuf, s); | |
707 | strcat(fwdbuf, ", "); | |
708 | continue; | |
66f7337b | 709 | } else if (strncasecmp(xbuf, "If-Modified-Since:", 18) == 0) { |
6bf8443a | 710 | if (EBIT_TEST(hdr_flags, HDR_IMS)) |
711 | continue; | |
66f7337b | 712 | } |
6bf8443a | 713 | httpAppendRequestHeader(hdr_out, xbuf, &len, out_sz - 512); |
714 | } | |
715 | hdr_len = t - hdr_in; | |
716 | /* Append Via: */ | |
43f1c650 | 717 | sprintf(ybuf, "%3.1f %s", orig_request->http_ver, ThisCache); |
6bf8443a | 718 | strcat(viabuf, ybuf); |
719 | httpAppendRequestHeader(hdr_out, viabuf, &len, out_sz); | |
720 | /* Append to X-Forwarded-For: */ | |
a08307eb | 721 | strcat(fwdbuf, cfd < 0 ? "unknown" : fd_table[cfd].ipaddr); |
6bf8443a | 722 | httpAppendRequestHeader(hdr_out, fwdbuf, &len, out_sz); |
723 | if (!EBIT_TEST(hdr_flags, HDR_HOST)) { | |
724 | sprintf(ybuf, "Host: %s", orig_request->host); | |
725 | httpAppendRequestHeader(hdr_out, ybuf, &len, out_sz); | |
726 | } | |
727 | if (!EBIT_TEST(hdr_flags, HDR_MAXAGE)) { | |
728 | url = entry ? entry->url : urlCanonical(orig_request, NULL); | |
729 | sprintf(ybuf, "Cache-control: Max-age=%d", (int) getMaxAge(url)); | |
730 | httpAppendRequestHeader(hdr_out, ybuf, &len, out_sz); | |
731 | } | |
732 | httpAppendRequestHeader(hdr_out, null_string, &len, out_sz); | |
733 | put_free_4k_page(xbuf); | |
872b720f | 734 | put_free_8k_page(ybuf); |
6bf8443a | 735 | put_free_4k_page(viabuf); |
736 | put_free_4k_page(fwdbuf); | |
737 | if (in_len) | |
738 | *in_len = hdr_len; | |
9d9d144b | 739 | if ((l = strlen(hdr_out)) != len) { |
740 | debug_trap("httpBuildRequestHeader: size mismatch"); | |
741 | len = l; | |
742 | } | |
6bf8443a | 743 | debug(11, 3, "httpBuildRequestHeader: OUTPUT:\n%s\n", hdr_out); |
744 | return len; | |
745 | } | |
746 | ||
090089c4 | 747 | /* This will be called when connect completes. Write request. */ |
b8d8561b | 748 | static void |
b177367b | 749 | httpSendRequest(int fd, void *data) |
090089c4 | 750 | { |
b177367b | 751 | HttpStateData *httpState = data; |
090089c4 | 752 | char *buf = NULL; |
090089c4 | 753 | int len = 0; |
754 | int buflen; | |
30a4f2a8 | 755 | request_t *req = httpState->request; |
9864ee44 | 756 | int buftype = 0; |
620da955 | 757 | StoreEntry *entry = httpState->entry; |
2a26c096 | 758 | int cfd; |
090089c4 | 759 | |
30a4f2a8 | 760 | debug(11, 5, "httpSendRequest: FD %d: httpState %p.\n", fd, httpState); |
6bf8443a | 761 | buflen = strlen(req->urlpath); |
30a4f2a8 | 762 | if (httpState->req_hdr) |
4768dbe0 | 763 | buflen += httpState->req_hdr_sz + 1; |
090089c4 | 764 | buflen += 512; /* lots of extra */ |
765 | ||
78657218 | 766 | if ((req->method == METHOD_POST || req->method == METHOD_PUT)) { |
767 | debug_trap("httpSendRequest: should not be handling POST/PUT request"); | |
768 | return; | |
090089c4 | 769 | } |
30a4f2a8 | 770 | if (buflen < DISK_PAGE_SIZE) { |
9864ee44 | 771 | buf = get_free_8k_page(); |
772 | memset(buf, '\0', buflen); | |
773 | buftype = BUF_TYPE_8K; | |
6bf8443a | 774 | buflen = DISK_PAGE_SIZE; |
30a4f2a8 | 775 | } else { |
9864ee44 | 776 | buf = xcalloc(buflen, 1); |
777 | buftype = BUF_TYPE_MALLOC; | |
090089c4 | 778 | } |
2a26c096 | 779 | if (!opt_forwarded_for) |
6bf8443a | 780 | cfd = -1; |
2a26c096 | 781 | else if (entry->mem_obj == NULL) |
6bf8443a | 782 | cfd = -1; |
2a26c096 | 783 | else |
6bf8443a | 784 | cfd = storeFirstClientFD(entry->mem_obj); |
785 | len = httpBuildRequestHeader(req, | |
786 | httpState->orig_request ? httpState->orig_request : req, | |
787 | entry, | |
788 | httpState->req_hdr, | |
789 | NULL, | |
790 | buf, | |
791 | buflen, | |
792 | cfd); | |
67508012 | 793 | debug(11, 6, "httpSendRequest: FD %d:\n%s\n", fd, buf); |
30a4f2a8 | 794 | comm_write(fd, |
14e59844 | 795 | buf, |
796 | len, | |
797 | 30, | |
798 | httpSendComplete, | |
9864ee44 | 799 | httpState, |
800 | buftype == BUF_TYPE_8K ? put_free_8k_page : xfree); | |
20cc1450 | 801 | requestUnlink(httpState->orig_request); |
802 | httpState->orig_request = NULL; | |
090089c4 | 803 | } |
804 | ||
b8d8561b | 805 | int |
20cc1450 | 806 | proxyhttpStart(const char *url, |
807 | request_t * orig_request, | |
808 | StoreEntry * entry, | |
809 | edge * e) | |
090089c4 | 810 | { |
f5558c95 | 811 | int sock; |
30a4f2a8 | 812 | HttpStateData *httpState = NULL; |
7111c86a | 813 | request_t *request = NULL; |
090089c4 | 814 | |
7111c86a | 815 | debug(11, 3, "proxyhttpStart: \"%s %s\"\n", |
efbb0a25 | 816 | RequestMethodStr[entry->method], url); |
019dd986 | 817 | debug(11, 10, "proxyhttpStart: HTTP request header:\n%s\n", |
22e4fa85 | 818 | entry->mem_obj->mime_hdr); |
090089c4 | 819 | |
30a4f2a8 | 820 | if (e->options & NEIGHBOR_PROXY_ONLY) |
090089c4 | 821 | storeStartDeleteBehind(entry); |
822 | ||
823 | /* Create socket. */ | |
16b204c4 | 824 | sock = comm_open(SOCK_STREAM, |
825 | 0, | |
826 | Config.Addrs.tcp_outgoing, | |
827 | 0, | |
828 | COMM_NONBLOCKING, | |
829 | url); | |
090089c4 | 830 | if (sock == COMM_ERROR) { |
019dd986 | 831 | debug(11, 4, "proxyhttpStart: Failed because we're out of sockets.\n"); |
b8de7ebe | 832 | squid_error_entry(entry, ERR_NO_FDS, xstrerror()); |
090089c4 | 833 | return COMM_ERROR; |
834 | } | |
30a4f2a8 | 835 | httpState = xcalloc(1, sizeof(HttpStateData)); |
836 | storeLockObject(httpState->entry = entry, NULL, NULL); | |
837 | httpState->req_hdr = entry->mem_obj->mime_hdr; | |
4768dbe0 | 838 | httpState->req_hdr_sz = entry->mem_obj->mime_hdr_sz; |
30a4f2a8 | 839 | request = get_free_request_t(); |
840 | httpState->request = requestLink(request); | |
841 | httpState->neighbor = e; | |
20cc1450 | 842 | httpState->orig_request = requestLink(orig_request); |
0d4d4170 | 843 | /* register the handler to free HTTP state data when the FD closes */ |
30a4f2a8 | 844 | comm_add_close_handler(sock, |
b177367b | 845 | httpStateFree, |
30a4f2a8 | 846 | (void *) httpState); |
784213dc | 847 | request->method = entry->method; |
d5aa0e3b | 848 | xstrncpy(request->host, e->host, SQUIDHOSTNAMELEN); |
30a4f2a8 | 849 | request->port = e->http_port; |
d5aa0e3b | 850 | xstrncpy(request->urlpath, url, MAX_URL); |
313c1c28 | 851 | BIT_SET(request->flags, REQ_PROXYING); |
a13d9042 | 852 | ipcache_nbgethostbyname(request->host, |
853 | sock, | |
b15fe823 | 854 | httpConnect, |
a13d9042 | 855 | httpState); |
856 | return COMM_OK; | |
857 | } | |
858 | ||
b15fe823 | 859 | static void |
fe4e214f | 860 | httpConnect(int fd, const ipcache_addrs * ia, void *data) |
a13d9042 | 861 | { |
862 | HttpStateData *httpState = data; | |
863 | request_t *request = httpState->request; | |
864 | StoreEntry *entry = httpState->entry; | |
e5f6c5c2 | 865 | if (ia == NULL) { |
a13d9042 | 866 | debug(11, 4, "httpConnect: Unknown host: %s\n", request->host); |
b8de7ebe | 867 | squid_error_entry(entry, ERR_DNS_FAIL, dns_error_message); |
a13d9042 | 868 | comm_close(fd); |
b15fe823 | 869 | return; |
090089c4 | 870 | } |
871 | /* Open connection. */ | |
e5f6c5c2 | 872 | httpState->connectState.fd = fd; |
873 | httpState->connectState.host = request->host; | |
874 | httpState->connectState.port = request->port; | |
875 | httpState->connectState.handler = httpConnectDone; | |
876 | httpState->connectState.data = httpState; | |
877 | comm_nbconnect(fd, &httpState->connectState); | |
878 | } | |
879 | ||
880 | static void | |
881 | httpConnectDone(int fd, int status, void *data) | |
882 | { | |
883 | HttpStateData *httpState = data; | |
884 | request_t *request = httpState->request; | |
885 | StoreEntry *entry = httpState->entry; | |
886 | edge *e = NULL; | |
887 | if (status != COMM_OK) { | |
5269d0bd | 888 | if ((e = httpState->neighbor)) |
e5f6c5c2 | 889 | e->last_fail_time = squid_curtime; |
e5f6c5c2 | 890 | squid_error_entry(entry, ERR_CONNECT_FAIL, xstrerror()); |
891 | comm_close(fd); | |
892 | } else { | |
893 | /* Install connection complete handler. */ | |
894 | if (opt_no_ipcache) | |
895 | ipcacheInvalidate(request->host); | |
896 | fd_note(fd, entry->url); | |
b177367b | 897 | commSetSelect(fd, COMM_SELECT_LIFETIME, |
898 | httpLifetimeExpire, (void *) httpState, 0); | |
899 | commSetSelect(fd, COMM_SELECT_WRITE, | |
900 | httpSendRequest, (void *) httpState, 0); | |
9d4b2981 | 901 | if (vizSock > -1) |
ef2d27ff | 902 | vizHackSendPkt(&httpState->connectState.S, 2); |
090089c4 | 903 | } |
090089c4 | 904 | } |
905 | ||
b8d8561b | 906 | int |
20cc1450 | 907 | httpStart(char *url, |
4768dbe0 | 908 | request_t * request, |
909 | char *req_hdr, | |
910 | int req_hdr_sz, | |
911 | StoreEntry * entry) | |
090089c4 | 912 | { |
913 | /* Create state structure. */ | |
a13d9042 | 914 | int sock; |
30a4f2a8 | 915 | HttpStateData *httpState = NULL; |
090089c4 | 916 | |
7111c86a | 917 | debug(11, 3, "httpStart: \"%s %s\"\n", |
918 | RequestMethodStr[request->method], url); | |
019dd986 | 919 | debug(11, 10, "httpStart: req_hdr '%s'\n", req_hdr); |
090089c4 | 920 | |
090089c4 | 921 | /* Create socket. */ |
16b204c4 | 922 | sock = comm_open(SOCK_STREAM, |
923 | 0, | |
924 | Config.Addrs.tcp_outgoing, | |
925 | 0, | |
926 | COMM_NONBLOCKING, | |
927 | url); | |
090089c4 | 928 | if (sock == COMM_ERROR) { |
019dd986 | 929 | debug(11, 4, "httpStart: Failed because we're out of sockets.\n"); |
b8de7ebe | 930 | squid_error_entry(entry, ERR_NO_FDS, xstrerror()); |
090089c4 | 931 | return COMM_ERROR; |
932 | } | |
30a4f2a8 | 933 | httpState = xcalloc(1, sizeof(HttpStateData)); |
934 | storeLockObject(httpState->entry = entry, NULL, NULL); | |
935 | httpState->req_hdr = req_hdr; | |
4768dbe0 | 936 | httpState->req_hdr_sz = req_hdr_sz; |
30a4f2a8 | 937 | httpState->request = requestLink(request); |
938 | comm_add_close_handler(sock, | |
b177367b | 939 | httpStateFree, |
30a4f2a8 | 940 | (void *) httpState); |
a13d9042 | 941 | ipcache_nbgethostbyname(request->host, |
942 | sock, | |
943 | httpConnect, | |
944 | httpState); | |
090089c4 | 945 | return COMM_OK; |
946 | } | |
30a4f2a8 | 947 | |
b8d8561b | 948 | void |
949 | httpReplyHeaderStats(StoreEntry * entry) | |
30a4f2a8 | 950 | { |
6fb52f6c | 951 | http_server_cc_t i; |
30a4f2a8 | 952 | storeAppendPrintf(entry, open_bracket); |
6fb52f6c | 953 | storeAppendPrintf(entry, "{HTTP Reply Headers:}\n"); |
954 | storeAppendPrintf(entry, "{ Headers parsed: %d}\n", | |
30a4f2a8 | 955 | ReplyHeaderStats.parsed); |
6fb52f6c | 956 | storeAppendPrintf(entry, "{ Date: %d}\n", |
30a4f2a8 | 957 | ReplyHeaderStats.date); |
6fb52f6c | 958 | storeAppendPrintf(entry, "{ Last-Modified: %d}\n", |
30a4f2a8 | 959 | ReplyHeaderStats.lm); |
6fb52f6c | 960 | storeAppendPrintf(entry, "{ Expires: %d}\n", |
30a4f2a8 | 961 | ReplyHeaderStats.exp); |
6fb52f6c | 962 | storeAppendPrintf(entry, "{ Content-Type: %d}\n", |
30a4f2a8 | 963 | ReplyHeaderStats.ctype); |
6fb52f6c | 964 | storeAppendPrintf(entry, "{ Content-Length: %d}\n", |
30a4f2a8 | 965 | ReplyHeaderStats.clen); |
4db43fab | 966 | for (i = SCC_PUBLIC; i < SCC_ENUM_END; i++) |
6fb52f6c | 967 | storeAppendPrintf(entry, "{Cache-Control %7.7s: %d}\n", |
968 | HttpServerCCStr[i], | |
969 | ReplyHeaderStats.cc[i]); | |
30a4f2a8 | 970 | storeAppendPrintf(entry, close_bracket); |
971 | } |