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30a4f2a8 | 1 | /* |
f88211e8 | 2 | * $Id: http.cc,v 1.168 1997/06/02 19:56:03 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 | |
de3bdb4c | 108 | * have a look into http-anon.c to get more informations. |
4a83b852 | 109 | */ |
110 | ||
44a47c6e | 111 | #include "squid.h" |
090089c4 | 112 | |
234967c9 | 113 | #define HTTP_DELETE_GAP (1<<18) |
090089c4 | 114 | |
6bf8443a | 115 | static const char *const crlf = "\r\n"; |
4db43fab | 116 | |
6fb52f6c | 117 | typedef enum { |
118 | SCC_PUBLIC, | |
119 | SCC_PRIVATE, | |
120 | SCC_NOCACHE, | |
121 | SCC_NOSTORE, | |
122 | SCC_NOTRANSFORM, | |
123 | SCC_MUSTREVALIDATE, | |
124 | SCC_PROXYREVALIDATE, | |
125 | SCC_MAXAGE, | |
126 | SCC_ENUM_END | |
127 | } http_server_cc_t; | |
128 | ||
6bf8443a | 129 | enum { |
6fb52f6c | 130 | CCC_NOCACHE, |
131 | CCC_NOSTORE, | |
132 | CCC_MAXAGE, | |
133 | CCC_MAXSTALE, | |
134 | CCC_MINFRESH, | |
135 | CCC_ONLYIFCACHED, | |
136 | CCC_ENUM_END | |
6bf8443a | 137 | }; |
138 | ||
151a0b6d | 139 | typedef enum { |
140 | HDR_ACCEPT, | |
141 | HDR_AGE, | |
142 | HDR_CONTENT_LENGTH, | |
143 | HDR_CONTENT_MD5, | |
144 | HDR_CONTENT_TYPE, | |
145 | HDR_DATE, | |
146 | HDR_ETAG, | |
147 | HDR_EXPIRES, | |
6bf8443a | 148 | HDR_HOST, |
151a0b6d | 149 | HDR_IMS, |
150 | HDR_LAST_MODIFIED, | |
151 | HDR_MAX_FORWARDS, | |
152 | HDR_PUBLIC, | |
153 | HDR_RETRY_AFTER, | |
154 | HDR_SET_COOKIE, | |
155 | HDR_UPGRADE, | |
156 | HDR_WARNING, | |
157 | HDR_MISC_END | |
158 | } http_hdr_misc_t; | |
6fb52f6c | 159 | |
e924600d | 160 | static char *HttpServerCCStr[] = |
6fb52f6c | 161 | { |
162 | "public", | |
163 | "private", | |
164 | "no-cache", | |
165 | "no-store", | |
166 | "no-transform", | |
167 | "must-revalidate", | |
168 | "proxy-revalidate", | |
169 | "max-age", | |
170 | "NONE" | |
171 | }; | |
172 | ||
151a0b6d | 173 | static char *HttpHdrMiscStr[] = |
174 | { | |
175 | "Accept", | |
176 | "Age", | |
177 | "Content-Length", | |
178 | "Content-MD5", | |
179 | "Content-Type", | |
180 | "Date", | |
181 | "Etag", | |
182 | "Expires", | |
183 | "Host", | |
184 | "If-Modified-Since", | |
185 | "Last-Modified", | |
186 | "Max-Forwards", | |
187 | "Public", | |
188 | "Retry-After", | |
189 | "Set-Cookie", | |
190 | "Upgrade", | |
191 | "Warning", | |
192 | "NONE" | |
193 | }; | |
194 | ||
24382924 | 195 | static struct { |
30a4f2a8 | 196 | int parsed; |
151a0b6d | 197 | int misc[HDR_MISC_END]; |
6fb52f6c | 198 | int cc[SCC_ENUM_END]; |
30a4f2a8 | 199 | } ReplyHeaderStats; |
090089c4 | 200 | |
9e4ad609 | 201 | static CNCB httpConnectDone; |
202 | static CWCB httpSendComplete; | |
9e4ad609 | 203 | static PF httpReadReply; |
204 | static PF httpSendRequest; | |
205 | static PF httpStateFree; | |
206 | static PF httpTimeout; | |
6bf8443a | 207 | static void httpAppendRequestHeader _PARAMS((char *hdr, const char *line, size_t * sz, size_t max)); |
9e4ad609 | 208 | static void httpCacheNegatively _PARAMS((StoreEntry *)); |
209 | static void httpMakePrivate _PARAMS((StoreEntry *)); | |
210 | static void httpMakePublic _PARAMS((StoreEntry *)); | |
bfcaf585 | 211 | static STABH httpAbort; |
b8d8561b | 212 | |
b177367b | 213 | static void |
214 | httpStateFree(int fd, void *data) | |
f5558c95 | 215 | { |
b177367b | 216 | HttpStateData *httpState = data; |
0d4d4170 | 217 | if (httpState == NULL) |
b177367b | 218 | return; |
bfcaf585 | 219 | storeUnregisterAbort(httpState->entry); |
f88211e8 | 220 | storeUnlockObject(httpState->entry); |
0d4d4170 | 221 | if (httpState->reply_hdr) { |
222 | put_free_8k_page(httpState->reply_hdr); | |
223 | httpState->reply_hdr = NULL; | |
224 | } | |
30a4f2a8 | 225 | requestUnlink(httpState->request); |
20cc1450 | 226 | requestUnlink(httpState->orig_request); |
0d4d4170 | 227 | xfree(httpState); |
f5558c95 | 228 | } |
229 | ||
b8d8561b | 230 | int |
75e88d56 | 231 | httpCachable(method_t method) |
090089c4 | 232 | { |
090089c4 | 233 | /* GET and HEAD are cachable. Others are not. */ |
6eb42cae | 234 | if (method != METHOD_GET && method != METHOD_HEAD) |
090089c4 | 235 | return 0; |
090089c4 | 236 | /* else cachable */ |
237 | return 1; | |
238 | } | |
239 | ||
b8d8561b | 240 | static void |
5c5783a2 | 241 | httpTimeout(int fd, void *data) |
090089c4 | 242 | { |
b177367b | 243 | HttpStateData *httpState = data; |
593c9a75 | 244 | StoreEntry *entry = httpState->entry; |
5c5783a2 | 245 | debug(11, 4, "httpTimeout: FD %d: '%s'\n", fd, entry->url); |
246 | squid_error_entry(entry, ERR_READ_TIMEOUT, NULL); | |
0d4d4170 | 247 | comm_close(fd); |
090089c4 | 248 | } |
249 | ||
30a4f2a8 | 250 | /* This object can be cached for a long time */ |
b8d8561b | 251 | static void |
252 | httpMakePublic(StoreEntry * entry) | |
30a4f2a8 | 253 | { |
1c481e00 | 254 | if (BIT_TEST(entry->flag, ENTRY_CACHABLE)) |
30a4f2a8 | 255 | storeSetPublicKey(entry); |
256 | } | |
257 | ||
258 | /* This object should never be cached at all */ | |
b8d8561b | 259 | static void |
260 | httpMakePrivate(StoreEntry * entry) | |
30a4f2a8 | 261 | { |
30a4f2a8 | 262 | storeExpireNow(entry); |
1c481e00 | 263 | BIT_RESET(entry->flag, ENTRY_CACHABLE); |
30a4f2a8 | 264 | storeReleaseRequest(entry); /* delete object when not used */ |
265 | } | |
266 | ||
267 | /* This object may be negatively cached */ | |
b8d8561b | 268 | static void |
269 | httpCacheNegatively(StoreEntry * entry) | |
30a4f2a8 | 270 | { |
79b5cc5f | 271 | storeNegativeCache(entry); |
1c481e00 | 272 | if (BIT_TEST(entry->flag, ENTRY_CACHABLE)) |
30a4f2a8 | 273 | storeSetPublicKey(entry); |
30a4f2a8 | 274 | } |
275 | ||
276 | ||
277 | /* Build a reply structure from HTTP reply headers */ | |
b8d8561b | 278 | void |
48f44632 | 279 | httpParseReplyHeaders(const char *buf, struct _http_reply *reply) |
30a4f2a8 | 280 | { |
33b589ff | 281 | char *headers = get_free_4k_page(); |
ca85027a | 282 | char *line; |
33b589ff | 283 | char *end; |
30a4f2a8 | 284 | char *s = NULL; |
33b589ff | 285 | char *t; |
ca98227c | 286 | time_t delta; |
287 | size_t l; | |
30a4f2a8 | 288 | |
f1494beb | 289 | reply->code = 600; |
30a4f2a8 | 290 | ReplyHeaderStats.parsed++; |
33b589ff | 291 | xstrncpy(headers, buf, 4096); |
292 | end = mime_headers_end(headers); | |
ca85027a | 293 | if (end == NULL) { |
294 | t = headers; | |
e2ad7f85 | 295 | if (!strncasecmp(t, "HTTP/", 5)) { |
296 | reply->version = atof(t + 5); | |
297 | if ((t = strchr(t, ' '))) | |
298 | reply->code = atoi(++t); | |
ca85027a | 299 | } |
e2ad7f85 | 300 | put_free_4k_page(headers); |
301 | return; | |
ca85027a | 302 | } |
303 | reply->hdr_sz = end - headers; | |
304 | line = get_free_4k_page(); | |
33b589ff | 305 | for (s = headers; s < end; s += strcspn(s, crlf), s += strspn(s, crlf)) { |
306 | l = strcspn(s, crlf) + 1; | |
307 | if (l > 4096) | |
308 | l = 4096; | |
309 | xstrncpy(line, s, l); | |
310 | t = line; | |
311 | debug(11, 3, "httpParseReplyHeaders: %s\n", t); | |
312 | if (!strncasecmp(t, "HTTP/", 5)) { | |
e2ad7f85 | 313 | reply->version = atof(t + 5); |
33b589ff | 314 | if ((t = strchr(t, ' '))) |
315 | reply->code = atoi(++t); | |
30a4f2a8 | 316 | } else if (!strncasecmp(t, "Content-type:", 13)) { |
33b589ff | 317 | for (t += 13; isspace(*t); t++); |
e91b56e5 | 318 | if ((l = strcspn(t, ";\t ")) > 0) |
319 | *(t + l) = '\0'; | |
33b589ff | 320 | xstrncpy(reply->content_type, t, HTTP_REPLY_FIELD_SZ); |
151a0b6d | 321 | ReplyHeaderStats.misc[HDR_CONTENT_TYPE]++; |
30a4f2a8 | 322 | } else if (!strncasecmp(t, "Content-length:", 15)) { |
33b589ff | 323 | for (t += 15; isspace(*t); t++); |
33b589ff | 324 | reply->content_length = atoi(t); |
151a0b6d | 325 | ReplyHeaderStats.misc[HDR_CONTENT_LENGTH]++; |
30a4f2a8 | 326 | } else if (!strncasecmp(t, "Date:", 5)) { |
33b589ff | 327 | for (t += 5; isspace(*t); t++); |
328 | reply->date = parse_rfc1123(t); | |
151a0b6d | 329 | ReplyHeaderStats.misc[HDR_DATE]++; |
30a4f2a8 | 330 | } else if (!strncasecmp(t, "Expires:", 8)) { |
33b589ff | 331 | for (t += 8; isspace(*t); t++); |
332 | reply->expires = parse_rfc1123(t); | |
333 | /* | |
334 | * The HTTP/1.0 specs says that robust implementations | |
335 | * should consider bad or malformed Expires header as | |
336 | * equivalent to "expires immediately." | |
337 | */ | |
338 | if (reply->expires == -1) | |
339 | reply->expires = squid_curtime; | |
151a0b6d | 340 | ReplyHeaderStats.misc[HDR_EXPIRES]++; |
30a4f2a8 | 341 | } else if (!strncasecmp(t, "Last-Modified:", 14)) { |
33b589ff | 342 | for (t += 14; isspace(*t); t++); |
343 | reply->last_modified = parse_rfc1123(t); | |
151a0b6d | 344 | ReplyHeaderStats.misc[HDR_LAST_MODIFIED]++; |
345 | } else if (!strncasecmp(t, "Accept:", 7)) { | |
346 | ReplyHeaderStats.misc[HDR_ACCEPT]++; | |
347 | } else if (!strncasecmp(t, "Age:", 4)) { | |
348 | ReplyHeaderStats.misc[HDR_AGE]++; | |
349 | } else if (!strncasecmp(t, "Content-MD5:", 12)) { | |
350 | ReplyHeaderStats.misc[HDR_CONTENT_MD5]++; | |
351 | } else if (!strncasecmp(t, "ETag:", 5)) { | |
352 | ReplyHeaderStats.misc[HDR_ETAG]++; | |
353 | } else if (!strncasecmp(t, "Max-Forwards:", 13)) { | |
354 | ReplyHeaderStats.misc[HDR_MAX_FORWARDS]++; | |
355 | } else if (!strncasecmp(t, "Public:", 7)) { | |
356 | ReplyHeaderStats.misc[HDR_PUBLIC]++; | |
357 | } else if (!strncasecmp(t, "Retry-After:", 12)) { | |
358 | ReplyHeaderStats.misc[HDR_RETRY_AFTER]++; | |
359 | } else if (!strncasecmp(t, "Upgrade:", 8)) { | |
360 | ReplyHeaderStats.misc[HDR_UPGRADE]++; | |
361 | } else if (!strncasecmp(t, "Warning:", 8)) { | |
362 | ReplyHeaderStats.misc[HDR_WARNING]++; | |
caebbe00 | 363 | } else if (!strncasecmp(t, "Cache-Control:", 14)) { |
33b589ff | 364 | for (t += 14; isspace(*t); t++); |
4db43fab | 365 | if (!strncasecmp(t, "public", 6)) { |
366 | EBIT_SET(reply->cache_control, SCC_PUBLIC); | |
367 | ReplyHeaderStats.cc[SCC_PUBLIC]++; | |
368 | } else if (!strncasecmp(t, "private", 7)) { | |
369 | EBIT_SET(reply->cache_control, SCC_PRIVATE); | |
370 | ReplyHeaderStats.cc[SCC_PRIVATE]++; | |
371 | } else if (!strncasecmp(t, "no-cache", 8)) { | |
372 | EBIT_SET(reply->cache_control, SCC_NOCACHE); | |
373 | ReplyHeaderStats.cc[SCC_NOCACHE]++; | |
c1764328 | 374 | } else if (!strncasecmp(t, "no-store", 8)) { |
375 | EBIT_SET(reply->cache_control, SCC_NOSTORE); | |
376 | ReplyHeaderStats.cc[SCC_NOSTORE]++; | |
377 | } else if (!strncasecmp(t, "no-transform", 12)) { | |
378 | EBIT_SET(reply->cache_control, SCC_NOTRANSFORM); | |
379 | ReplyHeaderStats.cc[SCC_NOTRANSFORM]++; | |
380 | } else if (!strncasecmp(t, "must-revalidate", 15)) { | |
381 | EBIT_SET(reply->cache_control, SCC_MUSTREVALIDATE); | |
382 | ReplyHeaderStats.cc[SCC_MUSTREVALIDATE]++; | |
383 | } else if (!strncasecmp(t, "proxy-revalidate", 16)) { | |
384 | EBIT_SET(reply->cache_control, SCC_PROXYREVALIDATE); | |
385 | ReplyHeaderStats.cc[SCC_PROXYREVALIDATE]++; | |
4db43fab | 386 | } else if (!strncasecmp(t, "max-age", 7)) { |
387 | if ((t = strchr(t, '='))) { | |
ca98227c | 388 | delta = (time_t) atoi(++t); |
389 | reply->expires = squid_curtime + delta; | |
4db43fab | 390 | EBIT_SET(reply->cache_control, SCC_MAXAGE); |
391 | ReplyHeaderStats.cc[SCC_MAXAGE]++; | |
5df61230 | 392 | } |
caebbe00 | 393 | } |
df3ac7c0 | 394 | } else if (!strncasecmp(t, "Set-Cookie:", 11)) { |
395 | EBIT_SET(reply->misc_headers, HDR_SET_COOKIE); | |
58202be7 | 396 | ReplyHeaderStats.misc[HDR_SET_COOKIE]++; |
30a4f2a8 | 397 | } |
30a4f2a8 | 398 | } |
33b589ff | 399 | put_free_4k_page(headers); |
400 | put_free_4k_page(line); | |
30a4f2a8 | 401 | } |
402 | ||
090089c4 | 403 | |
b8d8561b | 404 | void |
0ee4272b | 405 | httpProcessReplyHeader(HttpStateData * httpState, const char *buf, int size) |
f5558c95 | 406 | { |
407 | char *t = NULL; | |
30a4f2a8 | 408 | StoreEntry *entry = httpState->entry; |
d3fb4dea | 409 | int room; |
410 | int hdr_len; | |
33b589ff | 411 | struct _http_reply *reply = entry->mem_obj->reply; |
d3fb4dea | 412 | |
ed85b771 | 413 | debug(11, 3, "httpProcessReplyHeader: key '%s'\n", entry->key); |
f5558c95 | 414 | |
e924600d | 415 | if (httpState->reply_hdr == NULL) |
30a4f2a8 | 416 | httpState->reply_hdr = get_free_8k_page(); |
30a4f2a8 | 417 | if (httpState->reply_hdr_state == 0) { |
418 | hdr_len = strlen(httpState->reply_hdr); | |
ed85b771 | 419 | room = 8191 - hdr_len; |
30a4f2a8 | 420 | strncat(httpState->reply_hdr, buf, room < size ? room : size); |
d3fb4dea | 421 | hdr_len += room < size ? room : size; |
30a4f2a8 | 422 | if (hdr_len > 4 && strncmp(httpState->reply_hdr, "HTTP/", 5)) { |
60bf30cb | 423 | debug(11, 3, "httpProcessReplyHeader: Non-HTTP-compliant header: '%s'\n", entry->key); |
30a4f2a8 | 424 | httpState->reply_hdr_state += 2; |
33b589ff | 425 | reply->code = 555; |
ed85b771 | 426 | return; |
d3fb4dea | 427 | } |
d1a43e28 | 428 | t = httpState->reply_hdr + hdr_len; |
429 | /* headers can be incomplete only if object still arriving */ | |
f86a6a46 | 430 | if (!httpState->eof) |
d1a43e28 | 431 | if ((t = mime_headers_end(httpState->reply_hdr)) == NULL) |
432 | return; /* headers not complete */ | |
2285407f | 433 | *t = '\0'; |
30a4f2a8 | 434 | httpState->reply_hdr_state++; |
f5558c95 | 435 | } |
30a4f2a8 | 436 | if (httpState->reply_hdr_state == 1) { |
437 | httpState->reply_hdr_state++; | |
019dd986 | 438 | debug(11, 9, "GOT HTTP REPLY HDR:\n---------\n%s\n----------\n", |
30a4f2a8 | 439 | httpState->reply_hdr); |
440 | /* Parse headers into reply structure */ | |
48f44632 | 441 | httpParseReplyHeaders(httpState->reply_hdr, reply); |
ca98227c | 442 | storeTimestampsSet(entry); |
30a4f2a8 | 443 | /* Check if object is cacheable or not based on reply code */ |
cb24292d | 444 | debug(11, 3, "httpProcessReplyHeader: HTTP CODE: %d\n", reply->code); |
2285407f | 445 | switch (reply->code) { |
30a4f2a8 | 446 | /* Responses that are cacheable */ |
f5558c95 | 447 | case 200: /* OK */ |
4e38e700 | 448 | case 203: /* Non-Authoritative Information */ |
449 | case 300: /* Multiple Choices */ | |
f5558c95 | 450 | case 301: /* Moved Permanently */ |
4e38e700 | 451 | case 410: /* Gone */ |
30a4f2a8 | 452 | /* don't cache objects from neighbors w/o LMT, Date, or Expires */ |
6fb52f6c | 453 | if (EBIT_TEST(reply->cache_control, SCC_PRIVATE)) |
caebbe00 | 454 | httpMakePrivate(entry); |
6fb52f6c | 455 | else if (EBIT_TEST(reply->cache_control, SCC_NOCACHE)) |
caebbe00 | 456 | httpMakePrivate(entry); |
e2ad7f85 | 457 | /* |
458 | * Dealing with cookies is quite a bit more complicated | |
459 | * than this. Ideally we should strip the cookie | |
460 | * header from the reply but still cache the reply body. | |
461 | * More confusion at draft-ietf-http-state-mgmt-05.txt. | |
462 | */ | |
df3ac7c0 | 463 | else if (EBIT_TEST(reply->misc_headers, HDR_SET_COOKIE)) |
464 | httpMakePrivate(entry); | |
ca98227c | 465 | else if (reply->date > -1) |
30a4f2a8 | 466 | httpMakePublic(entry); |
ca98227c | 467 | else if (reply->last_modified > -1) |
30a4f2a8 | 468 | httpMakePublic(entry); |
469 | else if (!httpState->neighbor) | |
470 | httpMakePublic(entry); | |
ca98227c | 471 | else if (reply->expires > -1) |
30a4f2a8 | 472 | httpMakePublic(entry); |
af00901c | 473 | else if (entry->mem_obj->request->protocol != PROTO_HTTP) |
474 | /* XXX Remove this check after a while. DW 8/21/96 | |
475 | * We won't keep some FTP objects from neighbors running | |
476 | * 1.0.8 or earlier because their ftpget's don't | |
477 | * add a Date: field */ | |
478 | httpMakePublic(entry); | |
30a4f2a8 | 479 | else |
480 | httpMakePrivate(entry); | |
481 | break; | |
482 | /* Responses that only are cacheable if the server says so */ | |
483 | case 302: /* Moved temporarily */ | |
ca98227c | 484 | if (reply->expires > -1) |
30a4f2a8 | 485 | httpMakePublic(entry); |
486 | else | |
487 | httpMakePrivate(entry); | |
f5558c95 | 488 | break; |
30a4f2a8 | 489 | /* Errors can be negatively cached */ |
490 | case 204: /* No Content */ | |
491 | case 305: /* Use Proxy (proxy redirect) */ | |
492 | case 400: /* Bad Request */ | |
493 | case 403: /* Forbidden */ | |
494 | case 404: /* Not Found */ | |
495 | case 405: /* Method Now Allowed */ | |
496 | case 414: /* Request-URI Too Long */ | |
497 | case 500: /* Internal Server Error */ | |
498 | case 501: /* Not Implemented */ | |
499 | case 502: /* Bad Gateway */ | |
500 | case 503: /* Service Unavailable */ | |
501 | case 504: /* Gateway Timeout */ | |
851eeef7 | 502 | httpCacheNegatively(entry); |
30a4f2a8 | 503 | break; |
504 | /* Some responses can never be cached */ | |
505 | case 303: /* See Other */ | |
234967c9 | 506 | case 304: /* Not Modified */ |
4e38e700 | 507 | case 401: /* Unauthorized */ |
508 | case 407: /* Proxy Authentication Required */ | |
f1494beb | 509 | case 600: /* Squid header parsing error */ |
30a4f2a8 | 510 | default: /* Unknown status code */ |
511 | httpMakePrivate(entry); | |
4e38e700 | 512 | break; |
f5558c95 | 513 | } |
514 | } | |
515 | } | |
516 | ||
090089c4 | 517 | |
518 | /* This will be called when data is ready to be read from fd. Read until | |
519 | * error or connection closed. */ | |
f5558c95 | 520 | /* XXX this function is too long! */ |
b8d8561b | 521 | static void |
b177367b | 522 | httpReadReply(int fd, void *data) |
090089c4 | 523 | { |
b177367b | 524 | HttpStateData *httpState = data; |
95d659f0 | 525 | LOCAL_ARRAY(char, buf, SQUID_TCP_SO_RCVBUF); |
bfcaf585 | 526 | StoreEntry *entry = httpState->entry; |
090089c4 | 527 | int len; |
30a4f2a8 | 528 | int bin; |
090089c4 | 529 | int clen; |
530 | int off; | |
d89d1fb6 | 531 | if (protoAbortFetch(entry)) { |
bfcaf585 | 532 | squid_error_entry(entry, ERR_CLIENT_ABORT, NULL); |
533 | comm_close(fd); | |
534 | return; | |
234967c9 | 535 | } |
536 | /* check if we want to defer reading */ | |
537 | clen = entry->mem_obj->e_current_len; | |
538 | off = storeGetLowestReaderOffset(entry); | |
539 | if ((clen - off) > HTTP_DELETE_GAP) { | |
30a4f2a8 | 540 | IOStats.Http.reads_deferred++; |
234967c9 | 541 | debug(11, 3, "httpReadReply: Read deferred for Object: %s\n", |
542 | entry->url); | |
543 | debug(11, 3, " Current Gap: %d bytes\n", clen - off); | |
544 | /* reschedule, so it will be automatically reactivated | |
545 | * when Gap is big enough. */ | |
b177367b | 546 | commSetSelect(fd, |
234967c9 | 547 | COMM_SELECT_READ, |
b177367b | 548 | httpReadReply, |
cd1fb0eb | 549 | httpState, 0); |
30a4f2a8 | 550 | /* disable read timeout until we are below the GAP */ |
56fa4cad | 551 | if (!BIT_TEST(entry->flag, READ_DEFERRED)) { |
5c5783a2 | 552 | commSetTimeout(fd, Config.Timeout.defer, NULL, NULL); |
56fa4cad | 553 | BIT_SET(entry->flag, READ_DEFERRED); |
554 | } | |
234967c9 | 555 | /* dont try reading again for a while */ |
b6f794d6 | 556 | comm_set_stall(fd, Config.stallDelay); |
234967c9 | 557 | return; |
56fa4cad | 558 | } else { |
559 | BIT_RESET(entry->flag, READ_DEFERRED); | |
090089c4 | 560 | } |
1513873c | 561 | errno = 0; |
30a4f2a8 | 562 | len = read(fd, buf, SQUID_TCP_SO_RCVBUF); |
4f92c80c | 563 | fd_bytes(fd, len, FD_READ); |
019dd986 | 564 | debug(11, 5, "httpReadReply: FD %d: len %d.\n", fd, len); |
30a4f2a8 | 565 | if (len > 0) { |
4f92c80c | 566 | commSetTimeout(fd, Config.Timeout.read, NULL, NULL); |
4a63c85f | 567 | IOStats.Http.reads++; |
30a4f2a8 | 568 | for (clen = len - 1, bin = 0; clen; bin++) |
569 | clen >>= 1; | |
570 | IOStats.Http.read_hist[bin]++; | |
571 | } | |
ba718c8f | 572 | if (len < 0) { |
0a0bf5db | 573 | if (errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR) { |
1513873c | 574 | /* reinstall handlers */ |
6fe6313d | 575 | /* XXX This may loop forever */ |
b177367b | 576 | commSetSelect(fd, COMM_SELECT_READ, |
cd1fb0eb | 577 | httpReadReply, httpState, 0); |
090089c4 | 578 | } else { |
1c481e00 | 579 | BIT_RESET(entry->flag, ENTRY_CACHABLE); |
2daae136 | 580 | storeReleaseRequest(entry); |
b8de7ebe | 581 | squid_error_entry(entry, ERR_READ_ERROR, xstrerror()); |
0d4d4170 | 582 | comm_close(fd); |
090089c4 | 583 | } |
0a0bf5db | 584 | debug(50, 2, "httpReadReply: FD %d: read failure: %s.\n", |
585 | fd, xstrerror()); | |
ba718c8f | 586 | } else if (len == 0 && entry->mem_obj->e_current_len == 0) { |
f86a6a46 | 587 | httpState->eof = 1; |
b8de7ebe | 588 | squid_error_entry(entry, |
ba718c8f | 589 | ERR_ZERO_SIZE_OBJECT, |
590 | errno ? xstrerror() : NULL); | |
0d4d4170 | 591 | comm_close(fd); |
090089c4 | 592 | } else if (len == 0) { |
593 | /* Connection closed; retrieval done. */ | |
f86a6a46 | 594 | httpState->eof = 1; |
d1a43e28 | 595 | if (httpState->reply_hdr_state < 2) |
596 | httpProcessReplyHeader(httpState, buf, len); | |
597 | storeAppend(entry, buf, len); /* invoke handlers! */ | |
598 | storeComplete(entry); /* deallocates mem_obj->request */ | |
0d4d4170 | 599 | comm_close(fd); |
090089c4 | 600 | } else { |
d1a43e28 | 601 | if (httpState->reply_hdr_state < 2) |
30a4f2a8 | 602 | httpProcessReplyHeader(httpState, buf, len); |
620da955 | 603 | storeAppend(entry, buf, len); |
0a0bf5db | 604 | commSetSelect(fd, |
605 | COMM_SELECT_READ, | |
606 | httpReadReply, | |
cd1fb0eb | 607 | httpState, 0); |
090089c4 | 608 | } |
609 | } | |
610 | ||
611 | /* This will be called when request write is complete. Schedule read of | |
612 | * reply. */ | |
b8d8561b | 613 | static void |
614 | httpSendComplete(int fd, char *buf, int size, int errflag, void *data) | |
090089c4 | 615 | { |
30a4f2a8 | 616 | HttpStateData *httpState = data; |
090089c4 | 617 | StoreEntry *entry = NULL; |
618 | ||
30a4f2a8 | 619 | entry = httpState->entry; |
019dd986 | 620 | debug(11, 5, "httpSendComplete: FD %d: size %d: errflag %d.\n", |
090089c4 | 621 | fd, size, errflag); |
622 | ||
090089c4 | 623 | if (errflag) { |
b8de7ebe | 624 | squid_error_entry(entry, ERR_CONNECT_FAIL, xstrerror()); |
0d4d4170 | 625 | comm_close(fd); |
090089c4 | 626 | return; |
627 | } else { | |
628 | /* Schedule read reply. */ | |
b177367b | 629 | commSetSelect(fd, |
019dd986 | 630 | COMM_SELECT_READ, |
b177367b | 631 | httpReadReply, |
cd1fb0eb | 632 | httpState, 0); |
090089c4 | 633 | } |
634 | } | |
635 | ||
6bf8443a | 636 | static void |
637 | httpAppendRequestHeader(char *hdr, const char *line, size_t * sz, size_t max) | |
638 | { | |
639 | size_t n = *sz + strlen(line) + 2; | |
640 | if (n >= max) | |
641 | return; | |
fa562c67 | 642 | if (Config.Options.anonymizer == ANONYMIZER_PARANOID) { |
bba6fa8f | 643 | if (!httpAnonAllowed(line)) |
fa562c67 | 644 | return; |
645 | } else if (Config.Options.anonymizer == ANONYMIZER_STANDARD) { | |
bba6fa8f | 646 | if (httpAnonDenied(line)) |
fa562c67 | 647 | return; |
4a83b852 | 648 | } |
4a83b852 | 649 | /* allowed header, explicitly known to be not dangerous */ |
6bf8443a | 650 | debug(11, 5, "httpAppendRequestHeader: %s\n", line); |
929545fe | 651 | strcpy(hdr + (*sz), line); |
6bf8443a | 652 | strcat(hdr + (*sz), crlf); |
653 | *sz = n; | |
654 | } | |
655 | ||
656 | size_t | |
657 | httpBuildRequestHeader(request_t * request, | |
658 | request_t * orig_request, | |
659 | StoreEntry * entry, | |
660 | char *hdr_in, | |
661 | size_t * in_len, | |
662 | char *hdr_out, | |
663 | size_t out_sz, | |
664 | int cfd) | |
665 | { | |
429fdbec | 666 | LOCAL_ARRAY(char, ybuf, MAX_URL + 32); |
6bf8443a | 667 | char *xbuf = get_free_4k_page(); |
6bf8443a | 668 | char *viabuf = get_free_4k_page(); |
669 | char *fwdbuf = get_free_4k_page(); | |
670 | char *t = NULL; | |
671 | char *s = NULL; | |
672 | char *end = NULL; | |
673 | size_t len = 0; | |
674 | size_t hdr_len = 0; | |
6bf8443a | 675 | size_t l; |
676 | int hdr_flags = 0; | |
151a0b6d | 677 | int cc_flags = 0; |
b3b64e58 | 678 | int n; |
6bf8443a | 679 | const char *url = NULL; |
680 | ||
681 | debug(11, 3, "httpBuildRequestHeader: INPUT:\n%s\n", hdr_in); | |
682 | xstrncpy(fwdbuf, "X-Forwarded-For: ", 4096); | |
683 | xstrncpy(viabuf, "Via: ", 4096); | |
684 | sprintf(ybuf, "%s %s HTTP/1.0", | |
685 | RequestMethodStr[request->method], | |
686 | *request->urlpath ? request->urlpath : "/"); | |
687 | httpAppendRequestHeader(hdr_out, ybuf, &len, out_sz); | |
688 | /* Add IMS header */ | |
689 | if (entry && entry->lastmod && request->method == METHOD_GET) { | |
690 | sprintf(ybuf, "If-Modified-Since: %s", mkrfc1123(entry->lastmod)); | |
691 | httpAppendRequestHeader(hdr_out, ybuf, &len, out_sz); | |
692 | EBIT_SET(hdr_flags, HDR_IMS); | |
693 | } | |
00c59270 | 694 | end = mime_headers_end(hdr_in); |
6bf8443a | 695 | for (t = hdr_in; t < end; t += strcspn(t, crlf), t += strspn(t, crlf)) { |
696 | hdr_len = t - hdr_in; | |
6bf8443a | 697 | l = strcspn(t, crlf) + 1; |
698 | if (l > 4096) | |
699 | l = 4096; | |
700 | xstrncpy(xbuf, t, l); | |
a7011ca4 | 701 | debug(11, 5, "httpBuildRequestHeader: %s\n", xbuf); |
6bf8443a | 702 | if (strncasecmp(xbuf, "Proxy-Connection:", 17) == 0) |
703 | continue; | |
704 | if (strncasecmp(xbuf, "Connection:", 11) == 0) | |
705 | continue; | |
66f7337b | 706 | if (strncasecmp(xbuf, "Host:", 5) == 0) { |
6bf8443a | 707 | EBIT_SET(hdr_flags, HDR_HOST); |
66f7337b | 708 | } else if (strncasecmp(xbuf, "Cache-Control:", 14) == 0) { |
6bf8443a | 709 | for (s = xbuf + 14; *s && isspace(*s); s++); |
710 | if (strncasecmp(s, "Max-age=", 8) == 0) | |
151a0b6d | 711 | EBIT_SET(cc_flags, CCC_MAXAGE); |
66f7337b | 712 | } else if (strncasecmp(xbuf, "Via:", 4) == 0) { |
6bf8443a | 713 | for (s = xbuf + 4; *s && isspace(*s); s++); |
714 | if (strlen(viabuf) + strlen(s) < 4000) | |
715 | strcat(viabuf, s); | |
716 | strcat(viabuf, ", "); | |
717 | continue; | |
66f7337b | 718 | } else if (strncasecmp(xbuf, "X-Forwarded-For:", 16) == 0) { |
6bf8443a | 719 | for (s = xbuf + 16; *s && isspace(*s); s++); |
720 | if (strlen(fwdbuf) + strlen(s) < 4000) | |
721 | strcat(fwdbuf, s); | |
722 | strcat(fwdbuf, ", "); | |
723 | continue; | |
66f7337b | 724 | } else if (strncasecmp(xbuf, "If-Modified-Since:", 18) == 0) { |
6bf8443a | 725 | if (EBIT_TEST(hdr_flags, HDR_IMS)) |
726 | continue; | |
b3b64e58 | 727 | } else if (strncasecmp(xbuf, "Max-Forwards:", 13) == 0) { |
728 | if (orig_request->method == METHOD_TRACE) { | |
729 | for (s = xbuf + 13; *s && isspace(*s); s++); | |
730 | n = atoi(s); | |
731 | sprintf(xbuf, "Max-Forwards: %d", n - 1); | |
732 | } | |
66f7337b | 733 | } |
6bf8443a | 734 | httpAppendRequestHeader(hdr_out, xbuf, &len, out_sz - 512); |
735 | } | |
9e5aec44 | 736 | hdr_len = end - hdr_in; |
6bf8443a | 737 | /* Append Via: */ |
43f1c650 | 738 | sprintf(ybuf, "%3.1f %s", orig_request->http_ver, ThisCache); |
6bf8443a | 739 | strcat(viabuf, ybuf); |
740 | httpAppendRequestHeader(hdr_out, viabuf, &len, out_sz); | |
741 | /* Append to X-Forwarded-For: */ | |
a08307eb | 742 | strcat(fwdbuf, cfd < 0 ? "unknown" : fd_table[cfd].ipaddr); |
6bf8443a | 743 | httpAppendRequestHeader(hdr_out, fwdbuf, &len, out_sz); |
744 | if (!EBIT_TEST(hdr_flags, HDR_HOST)) { | |
745 | sprintf(ybuf, "Host: %s", orig_request->host); | |
746 | httpAppendRequestHeader(hdr_out, ybuf, &len, out_sz); | |
747 | } | |
151a0b6d | 748 | if (!EBIT_TEST(cc_flags, CCC_MAXAGE)) { |
6bf8443a | 749 | url = entry ? entry->url : urlCanonical(orig_request, NULL); |
750 | sprintf(ybuf, "Cache-control: Max-age=%d", (int) getMaxAge(url)); | |
751 | httpAppendRequestHeader(hdr_out, ybuf, &len, out_sz); | |
752 | } | |
753 | httpAppendRequestHeader(hdr_out, null_string, &len, out_sz); | |
754 | put_free_4k_page(xbuf); | |
6bf8443a | 755 | put_free_4k_page(viabuf); |
756 | put_free_4k_page(fwdbuf); | |
757 | if (in_len) | |
758 | *in_len = hdr_len; | |
9d9d144b | 759 | if ((l = strlen(hdr_out)) != len) { |
760 | debug_trap("httpBuildRequestHeader: size mismatch"); | |
761 | len = l; | |
762 | } | |
6bf8443a | 763 | debug(11, 3, "httpBuildRequestHeader: OUTPUT:\n%s\n", hdr_out); |
764 | return len; | |
765 | } | |
766 | ||
090089c4 | 767 | /* This will be called when connect completes. Write request. */ |
b8d8561b | 768 | static void |
b177367b | 769 | httpSendRequest(int fd, void *data) |
090089c4 | 770 | { |
b177367b | 771 | HttpStateData *httpState = data; |
090089c4 | 772 | char *buf = NULL; |
090089c4 | 773 | int len = 0; |
774 | int buflen; | |
30a4f2a8 | 775 | request_t *req = httpState->request; |
9864ee44 | 776 | int buftype = 0; |
620da955 | 777 | StoreEntry *entry = httpState->entry; |
2a26c096 | 778 | int cfd; |
090089c4 | 779 | |
30a4f2a8 | 780 | debug(11, 5, "httpSendRequest: FD %d: httpState %p.\n", fd, httpState); |
6bf8443a | 781 | buflen = strlen(req->urlpath); |
62dec5a7 | 782 | if (req->headers) |
783 | buflen += req->headers_sz + 1; | |
090089c4 | 784 | buflen += 512; /* lots of extra */ |
785 | ||
78657218 | 786 | if ((req->method == METHOD_POST || req->method == METHOD_PUT)) { |
787 | debug_trap("httpSendRequest: should not be handling POST/PUT request"); | |
788 | return; | |
090089c4 | 789 | } |
30a4f2a8 | 790 | if (buflen < DISK_PAGE_SIZE) { |
9864ee44 | 791 | buf = get_free_8k_page(); |
9864ee44 | 792 | buftype = BUF_TYPE_8K; |
6bf8443a | 793 | buflen = DISK_PAGE_SIZE; |
30a4f2a8 | 794 | } else { |
9864ee44 | 795 | buf = xcalloc(buflen, 1); |
796 | buftype = BUF_TYPE_MALLOC; | |
090089c4 | 797 | } |
2a26c096 | 798 | if (!opt_forwarded_for) |
6bf8443a | 799 | cfd = -1; |
2a26c096 | 800 | else if (entry->mem_obj == NULL) |
6bf8443a | 801 | cfd = -1; |
2a26c096 | 802 | else |
382d851a | 803 | cfd = entry->mem_obj->fd; |
6bf8443a | 804 | len = httpBuildRequestHeader(req, |
805 | httpState->orig_request ? httpState->orig_request : req, | |
806 | entry, | |
62dec5a7 | 807 | req->headers, |
6bf8443a | 808 | NULL, |
809 | buf, | |
810 | buflen, | |
811 | cfd); | |
67508012 | 812 | debug(11, 6, "httpSendRequest: FD %d:\n%s\n", fd, buf); |
30a4f2a8 | 813 | comm_write(fd, |
14e59844 | 814 | buf, |
815 | len, | |
14e59844 | 816 | httpSendComplete, |
9864ee44 | 817 | httpState, |
818 | buftype == BUF_TYPE_8K ? put_free_8k_page : xfree); | |
20cc1450 | 819 | requestUnlink(httpState->orig_request); |
820 | httpState->orig_request = NULL; | |
090089c4 | 821 | } |
822 | ||
770f051d | 823 | void |
75e88d56 | 824 | proxyhttpStart(request_t * orig_request, |
20cc1450 | 825 | StoreEntry * entry, |
deb79f06 | 826 | peer * e) |
090089c4 | 827 | { |
9e4ad609 | 828 | HttpStateData *httpState; |
829 | request_t *request; | |
830 | int fd; | |
7111c86a | 831 | debug(11, 3, "proxyhttpStart: \"%s %s\"\n", |
75e88d56 | 832 | RequestMethodStr[orig_request->method], entry->url); |
30a4f2a8 | 833 | if (e->options & NEIGHBOR_PROXY_ONLY) |
d89d1fb6 | 834 | #if DONT_USE_VM |
835 | storeReleaseRequest(entry); | |
836 | #else | |
090089c4 | 837 | storeStartDeleteBehind(entry); |
d89d1fb6 | 838 | #endif |
090089c4 | 839 | /* Create socket. */ |
9e4ad609 | 840 | fd = comm_open(SOCK_STREAM, |
16b204c4 | 841 | 0, |
842 | Config.Addrs.tcp_outgoing, | |
843 | 0, | |
844 | COMM_NONBLOCKING, | |
75e88d56 | 845 | entry->url); |
9e4ad609 | 846 | if (fd == COMM_ERROR) { |
019dd986 | 847 | debug(11, 4, "proxyhttpStart: Failed because we're out of sockets.\n"); |
b8de7ebe | 848 | squid_error_entry(entry, ERR_NO_FDS, xstrerror()); |
770f051d | 849 | return; |
090089c4 | 850 | } |
770f051d | 851 | storeLockObject(entry); |
30a4f2a8 | 852 | httpState = xcalloc(1, sizeof(HttpStateData)); |
0a0bf5db | 853 | httpState->entry = entry; |
30a4f2a8 | 854 | request = get_free_request_t(); |
855 | httpState->request = requestLink(request); | |
856 | httpState->neighbor = e; | |
20cc1450 | 857 | httpState->orig_request = requestLink(orig_request); |
9e4ad609 | 858 | httpState->fd = fd; |
0d4d4170 | 859 | /* register the handler to free HTTP state data when the FD closes */ |
429fdbec | 860 | comm_add_close_handler(httpState->fd, |
b177367b | 861 | httpStateFree, |
cd1fb0eb | 862 | httpState); |
2cc3f720 | 863 | request->method = orig_request->method; |
d5aa0e3b | 864 | xstrncpy(request->host, e->host, SQUIDHOSTNAMELEN); |
30a4f2a8 | 865 | request->port = e->http_port; |
9e4ad609 | 866 | xstrncpy(request->urlpath, entry->url, MAX_URL); |
313c1c28 | 867 | BIT_SET(request->flags, REQ_PROXYING); |
5c5783a2 | 868 | commSetTimeout(fd, Config.Timeout.connect, httpTimeout, httpState); |
edeb28fd | 869 | commConnectStart(httpState->fd, |
e924600d | 870 | request->host, |
871 | request->port, | |
872 | httpConnectDone, | |
873 | httpState); | |
e5f6c5c2 | 874 | } |
875 | ||
876 | static void | |
877 | httpConnectDone(int fd, int status, void *data) | |
878 | { | |
879 | HttpStateData *httpState = data; | |
880 | request_t *request = httpState->request; | |
881 | StoreEntry *entry = httpState->entry; | |
edeb28fd | 882 | if (status == COMM_ERR_DNS) { |
883 | debug(11, 4, "httpConnectDone: Unknown host: %s\n", request->host); | |
884 | squid_error_entry(entry, ERR_DNS_FAIL, dns_error_message); | |
885 | comm_close(fd); | |
886 | } else if (status != COMM_OK) { | |
e5f6c5c2 | 887 | squid_error_entry(entry, ERR_CONNECT_FAIL, xstrerror()); |
e924600d | 888 | if (httpState->neighbor) |
889 | peerCheckConnectStart(httpState->neighbor); | |
e5f6c5c2 | 890 | comm_close(fd); |
891 | } else { | |
e5f6c5c2 | 892 | if (opt_no_ipcache) |
893 | ipcacheInvalidate(request->host); | |
894 | fd_note(fd, entry->url); | |
bfcaf585 | 895 | storeRegisterAbort(entry, httpAbort, httpState); |
896 | commSetSelect(fd, COMM_SELECT_WRITE, httpSendRequest, httpState, 0); | |
090089c4 | 897 | } |
090089c4 | 898 | } |
899 | ||
770f051d | 900 | void |
3a1c3e2f | 901 | httpStart(request_t * request, StoreEntry * entry) |
090089c4 | 902 | { |
9e4ad609 | 903 | int fd; |
904 | HttpStateData *httpState; | |
7111c86a | 905 | debug(11, 3, "httpStart: \"%s %s\"\n", |
75e88d56 | 906 | RequestMethodStr[request->method], entry->url); |
090089c4 | 907 | /* Create socket. */ |
9e4ad609 | 908 | fd = comm_open(SOCK_STREAM, |
16b204c4 | 909 | 0, |
910 | Config.Addrs.tcp_outgoing, | |
911 | 0, | |
912 | COMM_NONBLOCKING, | |
75e88d56 | 913 | entry->url); |
9e4ad609 | 914 | if (fd == COMM_ERROR) { |
019dd986 | 915 | debug(11, 4, "httpStart: Failed because we're out of sockets.\n"); |
b8de7ebe | 916 | squid_error_entry(entry, ERR_NO_FDS, xstrerror()); |
770f051d | 917 | return; |
090089c4 | 918 | } |
770f051d | 919 | storeLockObject(entry); |
30a4f2a8 | 920 | httpState = xcalloc(1, sizeof(HttpStateData)); |
0a0bf5db | 921 | httpState->entry = entry; |
30a4f2a8 | 922 | httpState->request = requestLink(request); |
9e4ad609 | 923 | httpState->fd = fd; |
429fdbec | 924 | comm_add_close_handler(httpState->fd, |
b177367b | 925 | httpStateFree, |
cd1fb0eb | 926 | httpState); |
edeb28fd | 927 | commSetTimeout(fd, Config.Timeout.connect, httpTimeout, httpState); |
928 | commConnectStart(httpState->fd, | |
929 | request->host, | |
930 | request->port, | |
931 | httpConnectDone, | |
a13d9042 | 932 | httpState); |
090089c4 | 933 | } |
30a4f2a8 | 934 | |
b8d8561b | 935 | void |
936 | httpReplyHeaderStats(StoreEntry * entry) | |
30a4f2a8 | 937 | { |
6fb52f6c | 938 | http_server_cc_t i; |
151a0b6d | 939 | http_hdr_misc_t j; |
30a4f2a8 | 940 | storeAppendPrintf(entry, open_bracket); |
6fb52f6c | 941 | storeAppendPrintf(entry, "{HTTP Reply Headers:}\n"); |
942 | storeAppendPrintf(entry, "{ Headers parsed: %d}\n", | |
30a4f2a8 | 943 | ReplyHeaderStats.parsed); |
151a0b6d | 944 | for (j = HDR_AGE; j < HDR_MISC_END; j++) |
945 | storeAppendPrintf(entry, "{%21.21s: %d}\n", | |
946 | HttpHdrMiscStr[j], | |
947 | ReplyHeaderStats.misc[j]); | |
4db43fab | 948 | for (i = SCC_PUBLIC; i < SCC_ENUM_END; i++) |
884011a1 | 949 | storeAppendPrintf(entry, "{Cache-Control %s: %d}\n", |
6fb52f6c | 950 | HttpServerCCStr[i], |
951 | ReplyHeaderStats.cc[i]); | |
30a4f2a8 | 952 | storeAppendPrintf(entry, close_bracket); |
953 | } | |
bfcaf585 | 954 | |
955 | static void | |
956 | httpAbort(void *data) | |
957 | { | |
958 | HttpStateData *httpState = data; | |
959 | debug(11, 1, "httpAbort: %s\n", httpState->entry->url); | |
960 | comm_close(httpState->fd); | |
961 | } |