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da2b3a17 | 1 | |
30a4f2a8 | 2 | /* |
5f33b71d | 3 | * $Id: http.cc,v 1.498 2006/05/19 20:22:56 wessels Exp $ |
30a4f2a8 | 4 | * |
5 | * DEBUG: section 11 Hypertext Transfer Protocol (HTTP) | |
6 | * AUTHOR: Harvest Derived | |
7 | * | |
2b6662ba | 8 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
e25c139f | 9 | * ---------------------------------------------------------- |
30a4f2a8 | 10 | * |
2b6662ba | 11 | * Squid is the result of efforts by numerous individuals from |
12 | * the Internet community; see the CONTRIBUTORS file for full | |
13 | * details. Many organizations have provided support for Squid's | |
14 | * development; see the SPONSORS file for full details. Squid is | |
15 | * Copyrighted (C) 2001 by the Regents of the University of | |
16 | * California; see the COPYRIGHT file for full details. Squid | |
17 | * incorporates software developed and/or copyrighted by other | |
18 | * sources; see the CREDITS file for full details. | |
30a4f2a8 | 19 | * |
20 | * This program is free software; you can redistribute it and/or modify | |
21 | * it under the terms of the GNU General Public License as published by | |
22 | * the Free Software Foundation; either version 2 of the License, or | |
23 | * (at your option) any later version. | |
24 | * | |
25 | * This program is distributed in the hope that it will be useful, | |
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | * GNU General Public License for more details. | |
29 | * | |
30 | * You should have received a copy of the GNU General Public License | |
31 | * along with this program; if not, write to the Free Software | |
cbdec147 | 32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
e25c139f | 33 | * |
30a4f2a8 | 34 | */ |
019dd986 | 35 | |
4a83b852 | 36 | /* |
37 | * Anonymizing patch by lutz@as-node.jena.thur.de | |
de3bdb4c | 38 | * have a look into http-anon.c to get more informations. |
4a83b852 | 39 | */ |
40 | ||
44a47c6e | 41 | #include "squid.h" |
0eb49b6d | 42 | #include "MemBuf.h" |
e6ccf245 | 43 | #include "http.h" |
f5691f9c | 44 | #include "AuthUserRequest.h" |
e6ccf245 | 45 | #include "Store.h" |
528b2c61 | 46 | #include "HttpReply.h" |
47 | #include "HttpRequest.h" | |
48 | #include "MemObject.h" | |
49 | #include "HttpHdrContRange.h" | |
b19dd748 | 50 | #include "HttpHdrSc.h" |
51 | #include "HttpHdrScTarget.h" | |
4fb35c3c | 52 | #include "ACLChecklist.h" |
21b92762 | 53 | #include "fde.h" |
b67e2c8c | 54 | #if DELAY_POOLS |
55 | #include "DelayPools.h" | |
56 | #endif | |
2afaba07 | 57 | #if ICAP_CLIENT |
58 | #include "ICAP/ICAPClientRespmodPrecache.h" | |
59 | #include "ICAP/ICAPConfig.h" | |
ab7ac359 | 60 | extern ICAPConfig TheICAPConfig; |
2afaba07 | 61 | #endif |
985c86bc | 62 | #include "SquidTime.h" |
e6ccf245 | 63 | |
2afaba07 | 64 | CBDATA_CLASS_INIT(HttpStateData); |
090089c4 | 65 | |
6bf8443a | 66 | static const char *const crlf = "\r\n"; |
4db43fab | 67 | |
9e4ad609 | 68 | static PF httpStateFree; |
69 | static PF httpTimeout; | |
f9cece6e | 70 | static void httpMaybeRemovePublic(StoreEntry *, http_status); |
190154cf | 71 | static void copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, String strConnection, HttpRequest * request, HttpRequest * orig_request, |
62e76326 | 72 | HttpHeader * hdr_out, int we_do_ranges, http_state_flags); |
2afaba07 | 73 | #if ICAP_CLIENT |
74 | static void icapAclCheckDoneWrapper(ICAPServiceRep::Pointer service, void *data); | |
75 | #endif | |
528b2c61 | 76 | |
253caccb | 77 | HttpStateData::HttpStateData(FwdState *theFwdState) : ServerStateData(theFwdState) |
2bb867b5 | 78 | { |
79 | debugs(11,5,HERE << "HttpStateData " << this << " created"); | |
a3d50c30 | 80 | ignoreCacheControl = false; |
81 | surrogateNoStore = false; | |
a3d50c30 | 82 | fd = fwd->server_fd; |
83 | readBuf = new MemBuf; | |
84 | readBuf->init(4096, SQUID_TCP_SO_RCVBUF); | |
6dd9f4bd | 85 | orig_request = HTTPMSGLOCK(fwd->request); |
a3d50c30 | 86 | |
87 | if (fwd->servers) | |
88 | _peer = fwd->servers->_peer; /* might be NULL */ | |
89 | ||
90 | if (_peer) { | |
91 | const char *url; | |
92 | ||
93 | if (_peer->options.originserver) | |
94 | url = orig_request->urlpath.buf(); | |
95 | else | |
96 | url = storeUrl(entry); | |
97 | ||
5cafad19 | 98 | HttpRequest * proxy_req = new HttpRequest(orig_request->method, |
99 | orig_request->protocol, url); | |
a3d50c30 | 100 | |
101 | xstrncpy(proxy_req->host, _peer->host, SQUIDHOSTNAMELEN); | |
102 | ||
103 | proxy_req->port = _peer->http_port; | |
104 | ||
105 | proxy_req->flags = orig_request->flags; | |
106 | ||
107 | proxy_req->lastmod = orig_request->lastmod; | |
108 | ||
109 | proxy_req->flags.proxying = 1; | |
110 | ||
6dd9f4bd | 111 | HTTPMSGUNLOCK(request); |
253caccb | 112 | |
6dd9f4bd | 113 | request = HTTPMSGLOCK(proxy_req); |
a3d50c30 | 114 | |
115 | /* | |
116 | * This NEIGHBOR_PROXY_ONLY check probably shouldn't be here. | |
117 | * We might end up getting the object from somewhere else if, | |
118 | * for example, the request to this neighbor fails. | |
119 | */ | |
120 | if (_peer->options.proxy_only) | |
121 | storeReleaseRequest(entry); | |
122 | ||
123 | #if DELAY_POOLS | |
124 | ||
125 | entry->setNoDelay(_peer->options.no_delay); | |
126 | ||
127 | #endif | |
128 | ||
a3d50c30 | 129 | } |
130 | ||
131 | /* | |
132 | * register the handler to free HTTP state data when the FD closes | |
133 | */ | |
134 | comm_add_close_handler(fd, httpStateFree, this); | |
2bb867b5 | 135 | } |
b8d8561b | 136 | |
2afaba07 | 137 | HttpStateData::~HttpStateData() |
f5558c95 | 138 | { |
253caccb | 139 | /* |
3b299123 | 140 | * don't forget that ~ServerStateData() gets called automatically |
253caccb | 141 | */ |
142 | ||
3b299123 | 143 | if (orig_request->body_reader != NULL) { |
144 | orig_request->body_reader = NULL; | |
145 | debugs(32,3,HERE << "setting body_reader = NULL for request " << orig_request); | |
21b92762 | 146 | } |
147 | ||
2afaba07 | 148 | if (!readBuf->isNull()) |
149 | readBuf->clean(); | |
62e76326 | 150 | |
2afaba07 | 151 | delete readBuf; |
152 | ||
6dd9f4bd | 153 | HTTPMSGUNLOCK(orig_request); |
2afaba07 | 154 | |
2bb867b5 | 155 | debugs(11,5,HERE << "HttpStateData " << this << " destroyed"); |
2afaba07 | 156 | } |
157 | ||
158 | static void | |
159 | httpStateFree(int fd, void *data) | |
160 | { | |
161 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
162 | debug(11,5)("httpStateFree: FD %d, httpState=%p\n", fd, data); | |
163 | ||
164 | if (httpState) | |
165 | delete httpState; | |
f5558c95 | 166 | } |
167 | ||
b8d8561b | 168 | int |
75e88d56 | 169 | httpCachable(method_t method) |
090089c4 | 170 | { |
090089c4 | 171 | /* GET and HEAD are cachable. Others are not. */ |
62e76326 | 172 | |
6eb42cae | 173 | if (method != METHOD_GET && method != METHOD_HEAD) |
62e76326 | 174 | return 0; |
175 | ||
090089c4 | 176 | /* else cachable */ |
177 | return 1; | |
178 | } | |
179 | ||
b8d8561b | 180 | static void |
5c5783a2 | 181 | httpTimeout(int fd, void *data) |
090089c4 | 182 | { |
e6ccf245 | 183 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
593c9a75 | 184 | StoreEntry *entry = httpState->entry; |
9fb13bb6 | 185 | debug(11, 4) ("httpTimeout: FD %d: '%s'\n", fd, storeUrl(entry)); |
62e76326 | 186 | |
12158bdc | 187 | if (entry->store_status == STORE_PENDING) { |
b6b6f466 | 188 | httpState->fwd->fail(errorCon(ERR_READ_TIMEOUT, HTTP_GATEWAY_TIMEOUT)); |
9b312a19 | 189 | } |
62e76326 | 190 | |
0d4d4170 | 191 | comm_close(fd); |
090089c4 | 192 | } |
193 | ||
f9cece6e | 194 | static void |
195 | httpMaybeRemovePublic(StoreEntry * e, http_status status) | |
196 | { | |
62e76326 | 197 | |
198 | int remove | |
199 | = 0; | |
200 | ||
7e3ce7b9 | 201 | int forbidden = 0; |
62e76326 | 202 | |
f9cece6e | 203 | StoreEntry *pe; |
62e76326 | 204 | |
d46a87a8 | 205 | if (!EBIT_TEST(e->flags, KEY_PRIVATE)) |
62e76326 | 206 | return; |
207 | ||
f9cece6e | 208 | switch (status) { |
62e76326 | 209 | |
f9cece6e | 210 | case HTTP_OK: |
62e76326 | 211 | |
f9cece6e | 212 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 213 | |
f9cece6e | 214 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 215 | |
f9cece6e | 216 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 217 | |
f9cece6e | 218 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 219 | |
f9cece6e | 220 | case HTTP_GONE: |
62e76326 | 221 | |
7e3ce7b9 | 222 | case HTTP_NOT_FOUND: |
62e76326 | 223 | |
224 | remove | |
225 | = 1; | |
226 | ||
227 | break; | |
228 | ||
7e3ce7b9 | 229 | case HTTP_FORBIDDEN: |
62e76326 | 230 | |
7e3ce7b9 | 231 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 232 | forbidden = 1; |
233 | ||
234 | break; | |
235 | ||
f9cece6e | 236 | #if WORK_IN_PROGRESS |
62e76326 | 237 | |
c8fd0193 | 238 | case HTTP_UNAUTHORIZED: |
62e76326 | 239 | forbidden = 1; |
240 | ||
241 | break; | |
242 | ||
f9cece6e | 243 | #endif |
62e76326 | 244 | |
f9cece6e | 245 | default: |
7e3ce7b9 | 246 | #if QUESTIONABLE |
62e76326 | 247 | /* |
248 | * Any 2xx response should eject previously cached entities... | |
249 | */ | |
abb929f0 | 250 | |
62e76326 | 251 | if (status >= 200 && status < 300) |
252 | remove | |
253 | = 1; | |
254 | ||
7e3ce7b9 | 255 | #endif |
62e76326 | 256 | |
257 | break; | |
f9cece6e | 258 | } |
62e76326 | 259 | |
260 | if (!remove | |
261 | && !forbidden) | |
262 | return; | |
263 | ||
f9cece6e | 264 | assert(e->mem_obj); |
62e76326 | 265 | |
f66a9ef4 | 266 | if (e->mem_obj->request) |
62e76326 | 267 | pe = storeGetPublicByRequest(e->mem_obj->request); |
f66a9ef4 | 268 | else |
62e76326 | 269 | pe = storeGetPublic(e->mem_obj->url, e->mem_obj->method); |
270 | ||
f66a9ef4 | 271 | if (pe != NULL) { |
62e76326 | 272 | assert(e != pe); |
5f33b71d | 273 | pe->release(); |
0856d155 | 274 | } |
62e76326 | 275 | |
7e3ce7b9 | 276 | /* |
277 | * Also remove any cached HEAD response in case the object has | |
278 | * changed. | |
279 | */ | |
f66a9ef4 | 280 | if (e->mem_obj->request) |
62e76326 | 281 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_HEAD); |
f66a9ef4 | 282 | else |
62e76326 | 283 | pe = storeGetPublic(e->mem_obj->url, METHOD_HEAD); |
284 | ||
f66a9ef4 | 285 | if (pe != NULL) { |
62e76326 | 286 | assert(e != pe); |
5f33b71d | 287 | pe->release(); |
7e3ce7b9 | 288 | } |
62e76326 | 289 | |
7e3ce7b9 | 290 | if (forbidden) |
62e76326 | 291 | return; |
292 | ||
7e3ce7b9 | 293 | switch (e->mem_obj->method) { |
62e76326 | 294 | |
7e3ce7b9 | 295 | case METHOD_PUT: |
62e76326 | 296 | |
7e3ce7b9 | 297 | case METHOD_DELETE: |
62e76326 | 298 | |
7e3ce7b9 | 299 | case METHOD_PROPPATCH: |
62e76326 | 300 | |
7e3ce7b9 | 301 | case METHOD_MKCOL: |
62e76326 | 302 | |
7e3ce7b9 | 303 | case METHOD_MOVE: |
62e76326 | 304 | |
42b51993 | 305 | case METHOD_BMOVE: |
62e76326 | 306 | |
42b51993 | 307 | case METHOD_BDELETE: |
62e76326 | 308 | /* |
309 | * Remove any cached GET object if it is beleived that the | |
310 | * object may have changed as a result of other methods | |
311 | */ | |
312 | ||
313 | if (e->mem_obj->request) | |
314 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_GET); | |
315 | else | |
316 | pe = storeGetPublic(e->mem_obj->url, METHOD_GET); | |
317 | ||
318 | if (pe != NULL) { | |
319 | assert(e != pe); | |
5f33b71d | 320 | pe->release(); |
62e76326 | 321 | } |
322 | ||
323 | break; | |
324 | ||
c8be6d7b | 325 | default: |
62e76326 | 326 | /* Keep GCC happy. The methods above are all mutating HTTP methods |
327 | */ | |
328 | break; | |
0856d155 | 329 | } |
f9cece6e | 330 | } |
331 | ||
43ae1d95 | 332 | void |
333 | HttpStateData::processSurrogateControl(HttpReply *reply) | |
334 | { | |
335 | #if ESI | |
336 | ||
337 | if (request->flags.accelerated && reply->surrogate_control) { | |
338 | HttpHdrScTarget *sctusable = | |
339 | httpHdrScGetMergedTarget(reply->surrogate_control, | |
340 | Config.Accel.surrogate_id); | |
341 | ||
342 | if (sctusable) { | |
343 | if (EBIT_TEST(sctusable->mask, SC_NO_STORE) || | |
344 | (Config.onoff.surrogate_is_remote | |
345 | && EBIT_TEST(sctusable->mask, SC_NO_STORE_REMOTE))) { | |
346 | surrogateNoStore = true; | |
5ed72359 | 347 | entry->makePrivate(); |
43ae1d95 | 348 | } |
349 | ||
350 | /* The HttpHeader logic cannot tell if the header it's parsing is a reply to an | |
351 | * accelerated request or not... | |
352 | * Still, this is an abtraction breach. - RC | |
353 | */ | |
354 | if (sctusable->max_age != -1) { | |
355 | if (sctusable->max_age < sctusable->max_stale) | |
356 | reply->expires = reply->date + sctusable->max_age; | |
357 | else | |
358 | reply->expires = reply->date + sctusable->max_stale; | |
359 | ||
360 | /* And update the timestamps */ | |
361 | storeTimestampsSet(entry); | |
362 | } | |
363 | ||
364 | /* We ignore cache-control directives as per the Surrogate specification */ | |
365 | ignoreCacheControl = true; | |
366 | ||
367 | httpHdrScTargetDestroy(sctusable); | |
368 | } | |
369 | } | |
370 | ||
371 | #endif | |
372 | } | |
373 | ||
924f73bc | 374 | int |
375 | HttpStateData::cacheableReply() | |
c54e9052 | 376 | { |
2afaba07 | 377 | HttpReply const *rep = getReply(); |
528b2c61 | 378 | HttpHeader const *hdr = &rep->header; |
d8b249ef | 379 | const int cc_mask = (rep->cache_control) ? rep->cache_control->mask : 0; |
c68e9c6b | 380 | const char *v; |
38f9c547 | 381 | #if HTTP_VIOLATIONS |
62e76326 | 382 | |
38f9c547 | 383 | const refresh_t *R = NULL; |
384 | #endif | |
43ae1d95 | 385 | |
38f9c547 | 386 | if (surrogateNoStore) |
62e76326 | 387 | return 0; |
388 | ||
924f73bc | 389 | if (!ignoreCacheControl) { |
38f9c547 | 390 | if (EBIT_TEST(cc_mask, CC_PRIVATE)) { |
391 | #if HTTP_VIOLATIONS | |
43ae1d95 | 392 | |
38f9c547 | 393 | if (!R) |
394 | R = refreshLimits(entry->mem_obj->url); | |
43ae1d95 | 395 | |
38f9c547 | 396 | if (R && !R->flags.ignore_private) |
397 | #endif | |
398 | ||
399 | return 0; | |
400 | } | |
401 | ||
402 | if (EBIT_TEST(cc_mask, CC_NO_CACHE)) { | |
403 | #if HTTP_VIOLATIONS | |
404 | ||
405 | if (!R) | |
406 | R = refreshLimits(entry->mem_obj->url); | |
407 | ||
408 | if (R && !R->flags.ignore_no_cache) | |
409 | #endif | |
410 | ||
411 | return 0; | |
412 | } | |
413 | ||
414 | if (EBIT_TEST(cc_mask, CC_NO_STORE)) { | |
415 | #if HTTP_VIOLATIONS | |
416 | ||
417 | if (!R) | |
418 | R = refreshLimits(entry->mem_obj->url); | |
419 | ||
420 | if (R && !R->flags.ignore_no_store) | |
421 | #endif | |
422 | ||
423 | return 0; | |
424 | } | |
43ae1d95 | 425 | } |
426 | ||
924f73bc | 427 | if (request->flags.auth) { |
62e76326 | 428 | /* |
429 | * Responses to requests with authorization may be cached | |
430 | * only if a Cache-Control: public reply header is present. | |
431 | * RFC 2068, sec 14.9.4 | |
432 | */ | |
433 | ||
38f9c547 | 434 | if (!EBIT_TEST(cc_mask, CC_PUBLIC)) { |
435 | #if HTTP_VIOLATIONS | |
436 | ||
437 | if (!R) | |
438 | R = refreshLimits(entry->mem_obj->url); | |
439 | ||
440 | if (R && !R->flags.ignore_auth) | |
441 | #endif | |
442 | ||
443 | return 0; | |
444 | } | |
a6dfe2d9 | 445 | } |
62e76326 | 446 | |
c68e9c6b | 447 | /* Pragma: no-cache in _replies_ is not documented in HTTP, |
448 | * but servers like "Active Imaging Webcast/2.0" sure do use it */ | |
a9925b40 | 449 | if (hdr->has(HDR_PRAGMA)) { |
450 | String s = hdr->getList(HDR_PRAGMA); | |
62e76326 | 451 | const int no_cache = strListIsMember(&s, "no-cache", ','); |
452 | s.clean(); | |
453 | ||
38f9c547 | 454 | if (no_cache) { |
455 | #if HTTP_VIOLATIONS | |
456 | ||
457 | if (!R) | |
458 | R = refreshLimits(entry->mem_obj->url); | |
459 | ||
460 | if (R && !R->flags.ignore_no_cache) | |
461 | #endif | |
462 | ||
463 | return 0; | |
464 | } | |
c68e9c6b | 465 | } |
62e76326 | 466 | |
c68e9c6b | 467 | /* |
468 | * The "multipart/x-mixed-replace" content type is used for | |
469 | * continuous push replies. These are generally dynamic and | |
470 | * probably should not be cachable | |
471 | */ | |
a9925b40 | 472 | if ((v = hdr->getStr(HDR_CONTENT_TYPE))) |
62e76326 | 473 | if (!strncasecmp(v, "multipart/x-mixed-replace", 25)) |
474 | return 0; | |
475 | ||
2afaba07 | 476 | switch (getReply()->sline.status) { |
62e76326 | 477 | /* Responses that are cacheable */ |
478 | ||
19a04dac | 479 | case HTTP_OK: |
62e76326 | 480 | |
19a04dac | 481 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 482 | |
19a04dac | 483 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 484 | |
19a04dac | 485 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 486 | |
19a04dac | 487 | case HTTP_GONE: |
62e76326 | 488 | /* |
489 | * Don't cache objects that need to be refreshed on next request, | |
490 | * unless we know how to refresh it. | |
491 | */ | |
492 | ||
924f73bc | 493 | if (!refreshIsCachable(entry)) |
62e76326 | 494 | return 0; |
495 | ||
496 | /* don't cache objects from peers w/o LMT, Date, or Expires */ | |
497 | /* check that is it enough to check headers @?@ */ | |
498 | if (rep->date > -1) | |
499 | return 1; | |
500 | else if (rep->last_modified > -1) | |
501 | return 1; | |
924f73bc | 502 | else if (!_peer) |
62e76326 | 503 | return 1; |
504 | ||
505 | /* @?@ (here and 302): invalid expires header compiles to squid_curtime */ | |
506 | else if (rep->expires > -1) | |
507 | return 1; | |
508 | else | |
509 | return 0; | |
510 | ||
511 | /* NOTREACHED */ | |
512 | break; | |
513 | ||
514 | /* Responses that only are cacheable if the server says so */ | |
515 | ||
19a04dac | 516 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 517 | if (rep->expires > -1) |
518 | return 1; | |
519 | else | |
520 | return 0; | |
521 | ||
522 | /* NOTREACHED */ | |
523 | break; | |
524 | ||
525 | /* Errors can be negatively cached */ | |
526 | ||
19a04dac | 527 | case HTTP_NO_CONTENT: |
62e76326 | 528 | |
19a04dac | 529 | case HTTP_USE_PROXY: |
62e76326 | 530 | |
19a04dac | 531 | case HTTP_BAD_REQUEST: |
62e76326 | 532 | |
19a04dac | 533 | case HTTP_FORBIDDEN: |
62e76326 | 534 | |
19a04dac | 535 | case HTTP_NOT_FOUND: |
62e76326 | 536 | |
19a04dac | 537 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 538 | |
19a04dac | 539 | case HTTP_REQUEST_URI_TOO_LARGE: |
62e76326 | 540 | |
19a04dac | 541 | case HTTP_INTERNAL_SERVER_ERROR: |
62e76326 | 542 | |
19a04dac | 543 | case HTTP_NOT_IMPLEMENTED: |
62e76326 | 544 | |
19a04dac | 545 | case HTTP_BAD_GATEWAY: |
62e76326 | 546 | |
19a04dac | 547 | case HTTP_SERVICE_UNAVAILABLE: |
62e76326 | 548 | |
19a04dac | 549 | case HTTP_GATEWAY_TIMEOUT: |
62e76326 | 550 | return -1; |
551 | ||
552 | /* NOTREACHED */ | |
553 | break; | |
554 | ||
555 | /* Some responses can never be cached */ | |
556 | ||
0cdcddb9 | 557 | case HTTP_PARTIAL_CONTENT: /* Not yet supported */ |
62e76326 | 558 | |
19a04dac | 559 | case HTTP_SEE_OTHER: |
62e76326 | 560 | |
19a04dac | 561 | case HTTP_NOT_MODIFIED: |
62e76326 | 562 | |
19a04dac | 563 | case HTTP_UNAUTHORIZED: |
62e76326 | 564 | |
19a04dac | 565 | case HTTP_PROXY_AUTHENTICATION_REQUIRED: |
62e76326 | 566 | |
0cdcddb9 | 567 | case HTTP_INVALID_HEADER: /* Squid header parsing error */ |
4eb368f9 | 568 | |
569 | case HTTP_HEADER_TOO_LARGE: | |
62e76326 | 570 | return 0; |
571 | ||
c54e9052 | 572 | default: /* Unknown status code */ |
924f73bc | 573 | debug (11,0)("HttpStateData::cacheableReply: unknown http status code in reply\n"); |
62e76326 | 574 | |
575 | return 0; | |
576 | ||
577 | /* NOTREACHED */ | |
578 | break; | |
c54e9052 | 579 | } |
62e76326 | 580 | |
79d39a72 | 581 | /* NOTREACHED */ |
c54e9052 | 582 | } |
090089c4 | 583 | |
f66a9ef4 | 584 | /* |
585 | * For Vary, store the relevant request headers as | |
586 | * virtual headers in the reply | |
587 | * Returns false if the variance cannot be stored | |
588 | */ | |
589 | const char * | |
190154cf | 590 | httpMakeVaryMark(HttpRequest * request, HttpReply const * reply) |
f66a9ef4 | 591 | { |
f66a9ef4 | 592 | String vary, hdr; |
593 | const char *pos = NULL; | |
594 | const char *item; | |
595 | const char *value; | |
596 | int ilen; | |
528b2c61 | 597 | static String vstr; |
f66a9ef4 | 598 | |
528b2c61 | 599 | vstr.clean(); |
a9925b40 | 600 | vary = reply->header.getList(HDR_VARY); |
62e76326 | 601 | |
f66a9ef4 | 602 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 603 | char *name = (char *)xmalloc(ilen + 1); |
604 | xstrncpy(name, item, ilen + 1); | |
605 | Tolower(name); | |
9776e3cc | 606 | |
607 | if (strcmp(name, "*") == 0) { | |
608 | /* Can not handle "Vary: *" withtout ETag support */ | |
609 | safe_free(name); | |
610 | vstr.clean(); | |
611 | break; | |
612 | } | |
613 | ||
62e76326 | 614 | strListAdd(&vstr, name, ','); |
a9925b40 | 615 | hdr = request->header.getByName(name); |
62e76326 | 616 | safe_free(name); |
617 | value = hdr.buf(); | |
618 | ||
619 | if (value) { | |
620 | value = rfc1738_escape_part(value); | |
621 | vstr.append("=\"", 2); | |
622 | vstr.append(value); | |
623 | vstr.append("\"", 1); | |
624 | } | |
625 | ||
626 | hdr.clean(); | |
f66a9ef4 | 627 | } |
62e76326 | 628 | |
528b2c61 | 629 | vary.clean(); |
f66a9ef4 | 630 | #if X_ACCELERATOR_VARY |
62e76326 | 631 | |
aa38be4a | 632 | pos = NULL; |
a9925b40 | 633 | vary = reply->header.getList(HDR_X_ACCELERATOR_VARY); |
62e76326 | 634 | |
f66a9ef4 | 635 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 636 | char *name = (char *)xmalloc(ilen + 1); |
637 | xstrncpy(name, item, ilen + 1); | |
638 | Tolower(name); | |
639 | strListAdd(&vstr, name, ','); | |
a9925b40 | 640 | hdr = request->header.getByName(name); |
62e76326 | 641 | safe_free(name); |
642 | value = hdr.buf(); | |
643 | ||
644 | if (value) { | |
645 | value = rfc1738_escape_part(value); | |
646 | vstr.append("=\"", 2); | |
647 | vstr.append(value); | |
648 | vstr.append("\"", 1); | |
649 | } | |
650 | ||
651 | hdr.clean(); | |
f66a9ef4 | 652 | } |
62e76326 | 653 | |
528b2c61 | 654 | vary.clean(); |
f66a9ef4 | 655 | #endif |
62e76326 | 656 | |
528b2c61 | 657 | debug(11, 3) ("httpMakeVaryMark: %s\n", vstr.buf()); |
658 | return vstr.buf(); | |
f66a9ef4 | 659 | } |
660 | ||
4eb368f9 | 661 | void |
662 | HttpStateData::failReply(HttpReply *reply, http_status const & status) | |
663 | { | |
664 | reply->sline.version = HttpVersion(1, 0); | |
665 | reply->sline.status = status; | |
db237875 | 666 | entry->replaceHttpReply(reply); |
4eb368f9 | 667 | |
668 | if (eof == 1) { | |
2afaba07 | 669 | transactionComplete(); |
4eb368f9 | 670 | } |
671 | } | |
672 | ||
2afaba07 | 673 | void |
674 | HttpStateData::keepaliveAccounting(HttpReply *reply) | |
675 | { | |
676 | if (flags.keepalive) | |
677 | if (_peer) | |
678 | _peer->stats.n_keepalives_sent++; | |
679 | ||
680 | if (reply->keep_alive) { | |
681 | if (_peer) | |
682 | _peer->stats.n_keepalives_recv++; | |
683 | ||
684 | if (Config.onoff.detect_broken_server_pconns && reply->bodySize(request->method) == -1) { | |
685 | debug(11, 1) ("keepaliveAccounting: Impossible keep-alive header from '%s'\n", storeUrl(entry)); | |
686 | // debug(11, 2) ("GOT HTTP REPLY HDR:\n---------\n%s\n----------\n", readBuf->content()); | |
687 | flags.keepalive_broken = 1; | |
688 | } | |
689 | } | |
690 | } | |
691 | ||
692 | void | |
693 | HttpStateData::checkDateSkew(HttpReply *reply) | |
694 | { | |
695 | if (reply->date > -1 && !_peer) { | |
696 | int skew = abs((int)(reply->date - squid_curtime)); | |
697 | ||
698 | if (skew > 86400) | |
699 | debug(11, 3) ("%s's clock is skewed by %d seconds!\n", | |
700 | request->host, skew); | |
701 | } | |
702 | } | |
703 | ||
704 | /* | |
4eb368f9 | 705 | * This creates the error page itself.. its likely |
706 | * that the forward ported reply header max size patch | |
707 | * generates non http conformant error pages - in which | |
708 | * case the errors where should be 'BAD_GATEWAY' etc | |
709 | */ | |
b8d8561b | 710 | void |
2afaba07 | 711 | HttpStateData::processReplyHeader() |
f5558c95 | 712 | { |
528b2c61 | 713 | /* Creates a blank header. If this routine is made incremental, this will |
714 | * not do | |
715 | */ | |
4a56ee8d | 716 | HttpReply *newrep = new HttpReply; |
82384411 | 717 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
2afaba07 | 718 | debug(11, 3) ("processReplyHeader: key '%s'\n", entry->getMD5Text()); |
62e76326 | 719 | |
1a98175f | 720 | assert(!flags.headers_parsed); |
62e76326 | 721 | |
2afaba07 | 722 | http_status error = HTTP_STATUS_NONE; |
62e76326 | 723 | |
4a56ee8d | 724 | const bool parsed = newrep->parse(readBuf, eof, &error); |
62e76326 | 725 | |
2afaba07 | 726 | if (!parsed && error > 0) { // unrecoverable parsing error |
727 | debugs(11, 3, "processReplyHeader: Non-HTTP-compliant header: '" << readBuf->content() << "'"); | |
1a98175f | 728 | flags.headers_parsed = 1; |
2afaba07 | 729 | // negated result yields http_status |
4a56ee8d | 730 | failReply (newrep, error); |
82384411 | 731 | ctx_exit(ctx); |
4eb368f9 | 732 | return; |
733 | } | |
62e76326 | 734 | |
2afaba07 | 735 | if (!parsed) { // need more data |
736 | assert(!error); | |
737 | assert(!eof); | |
4a56ee8d | 738 | delete newrep; |
82384411 | 739 | ctx_exit(ctx); |
62e76326 | 740 | return; |
f5558c95 | 741 | } |
62e76326 | 742 | |
6dd9f4bd | 743 | reply = HTTPMSGLOCK(newrep); |
4a56ee8d | 744 | |
9bc73deb | 745 | debug(11, 9) ("GOT HTTP REPLY HDR:\n---------\n%s\n----------\n", |
2afaba07 | 746 | readBuf->content()); |
4eb368f9 | 747 | |
6965ab28 | 748 | readBuf->consume(headersEnd(readBuf->content(), readBuf->contentSize())); |
4a56ee8d | 749 | |
6965ab28 | 750 | flags.headers_parsed = 1; |
751 | ||
2afaba07 | 752 | keepaliveAccounting(reply); |
47ac2ebe | 753 | |
2afaba07 | 754 | checkDateSkew(reply); |
47ac2ebe | 755 | |
43ae1d95 | 756 | processSurrogateControl (reply); |
528b2c61 | 757 | |
758 | /* TODO: IF the reply is a 1.0 reply, AND it has a Connection: Header | |
759 | * Parse the header and remove all referenced headers | |
760 | */ | |
761 | ||
2afaba07 | 762 | #if ICAP_CLIENT |
763 | ||
ab7ac359 | 764 | if (TheICAPConfig.onoff) { |
2afaba07 | 765 | ICAPAccessCheck *icap_access_check = |
766 | new ICAPAccessCheck(ICAP::methodRespmod, ICAP::pointPreCache, request, reply, icapAclCheckDoneWrapper, this); | |
767 | ||
768 | icapAccessCheckPending = true; | |
769 | icap_access_check->check(); // will eventually delete self | |
770 | ctx_exit(ctx); | |
771 | return; | |
772 | } | |
ab7ac359 | 773 | |
2afaba07 | 774 | #endif |
775 | ||
db237875 | 776 | entry->replaceHttpReply(reply); |
2afaba07 | 777 | |
2afaba07 | 778 | haveParsedReplyHeaders(); |
779 | ||
780 | if (eof == 1) { | |
781 | transactionComplete(); | |
782 | } | |
783 | ||
784 | ctx_exit(ctx); | |
785 | } | |
786 | ||
787 | /* | |
788 | * This function used to be joined with processReplyHeader(), but | |
789 | * we split it for ICAP. | |
790 | */ | |
791 | void | |
792 | HttpStateData::haveParsedReplyHeaders() | |
793 | { | |
794 | Ctx ctx = ctx_enter(entry->mem_obj->url); | |
795 | ||
796 | if (getReply()->sline.status == HTTP_PARTIAL_CONTENT && | |
797 | getReply()->content_range) | |
798 | currentOffset = getReply()->content_range->spec.offset; | |
62e76326 | 799 | |
9bc73deb | 800 | storeTimestampsSet(entry); |
62e76326 | 801 | |
9bc73deb | 802 | /* Check if object is cacheable or not based on reply code */ |
2afaba07 | 803 | debug(11, 3) ("haveParsedReplyHeaders: HTTP CODE: %d\n", getReply()->sline.status); |
62e76326 | 804 | |
9bc73deb | 805 | if (neighbors_do_private_keys) |
2afaba07 | 806 | httpMaybeRemovePublic(entry, getReply()->sline.status); |
e6ccf245 | 807 | |
a9925b40 | 808 | if (getReply()->header.has(HDR_VARY) |
f66a9ef4 | 809 | #if X_ACCELERATOR_VARY |
a9925b40 | 810 | || getReply()->header.has(HDR_X_ACCELERATOR_VARY) |
f66a9ef4 | 811 | #endif |
4b44c907 | 812 | ) { |
2afaba07 | 813 | const char *vary = httpMakeVaryMark(orig_request, getReply()); |
4b44c907 | 814 | |
815 | if (!vary) { | |
5ed72359 | 816 | entry->makePrivate(); |
4b44c907 | 817 | goto no_cache; |
818 | ||
62e76326 | 819 | } |
820 | ||
4b44c907 | 821 | entry->mem_obj->vary_headers = xstrdup(vary); |
822 | } | |
823 | ||
2afaba07 | 824 | #if WIP_FWD_LOG |
825 | fwdStatus(fwd, s); | |
826 | ||
827 | #endif | |
828 | /* | |
829 | * If its not a reply that we will re-forward, then | |
830 | * allow the client to get it. | |
831 | */ | |
b6b6f466 | 832 | if (!fwd->reforwardableStatus(getReply()->sline.status)) |
2afaba07 | 833 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); |
834 | ||
4b44c907 | 835 | switch (cacheableReply()) { |
836 | ||
837 | case 1: | |
5ed72359 | 838 | entry->makePublic(); |
62e76326 | 839 | break; |
840 | ||
9bc73deb | 841 | case 0: |
5ed72359 | 842 | entry->makePrivate(); |
62e76326 | 843 | break; |
844 | ||
9bc73deb | 845 | case -1: |
4b44c907 | 846 | |
847 | if (Config.negativeTtl > 0) | |
5ed72359 | 848 | entry->cacheNegatively(); |
4b44c907 | 849 | else |
5ed72359 | 850 | entry->makePrivate(); |
4b44c907 | 851 | |
62e76326 | 852 | break; |
853 | ||
9bc73deb | 854 | default: |
62e76326 | 855 | assert(0); |
4b44c907 | 856 | |
62e76326 | 857 | break; |
9bc73deb | 858 | } |
62e76326 | 859 | |
4b44c907 | 860 | no_cache: |
861 | ||
2afaba07 | 862 | if (!ignoreCacheControl && getReply()->cache_control) { |
863 | if (EBIT_TEST(getReply()->cache_control->mask, CC_PROXY_REVALIDATE)) | |
62e76326 | 864 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
2afaba07 | 865 | else if (EBIT_TEST(getReply()->cache_control->mask, CC_MUST_REVALIDATE)) |
62e76326 | 866 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
9bc73deb | 867 | } |
62e76326 | 868 | |
9bc73deb | 869 | ctx_exit(ctx); |
c3609322 | 870 | #if HEADERS_LOG |
62e76326 | 871 | |
2afaba07 | 872 | headersLog(1, 0, request->method, getReply()); |
c3609322 | 873 | #endif |
f5558c95 | 874 | } |
875 | ||
528b2c61 | 876 | HttpStateData::ConnectionStatus |
877 | HttpStateData::statusIfComplete() const | |
603a02fd | 878 | { |
2afaba07 | 879 | HttpReply const *rep = getReply(); |
528b2c61 | 880 | /* If the reply wants to close the connection, it takes precedence */ |
62e76326 | 881 | |
2afaba07 | 882 | if (httpHeaderHasConnDir(&rep->header, "close")) |
62e76326 | 883 | return COMPLETE_NONPERSISTENT_MSG; |
884 | ||
528b2c61 | 885 | /* If we didn't send a keep-alive request header, then this |
978e455f | 886 | * can not be a persistent connection. |
887 | */ | |
528b2c61 | 888 | if (!flags.keepalive) |
62e76326 | 889 | return COMPLETE_NONPERSISTENT_MSG; |
890 | ||
72b63f06 | 891 | /* |
892 | * If we haven't sent the whole request then this can not be a persistent | |
893 | * connection. | |
894 | */ | |
895 | if (!flags.request_sent) { | |
2afdbf48 | 896 | debug(11, 1) ("statusIfComplete: Request not yet fully sent \"%s %s\"\n", |
72b63f06 | 897 | RequestMethodStr[orig_request->method], |
898 | storeUrl(entry)); | |
899 | return COMPLETE_NONPERSISTENT_MSG; | |
900 | } | |
901 | ||
9f5a2895 | 902 | /* |
903 | * What does the reply have to say about keep-alive? | |
904 | */ | |
b6a2f15e | 905 | /* |
906 | * XXX BUG? | |
907 | * If the origin server (HTTP/1.0) does not send a keep-alive | |
908 | * header, but keeps the connection open anyway, what happens? | |
909 | * We'll return here and http.c waits for an EOF before changing | |
910 | * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT | |
911 | * and an error status code, and we might have to wait until | |
912 | * the server times out the socket. | |
913 | */ | |
2afaba07 | 914 | if (!rep->keep_alive) |
528b2c61 | 915 | return COMPLETE_NONPERSISTENT_MSG; |
62e76326 | 916 | |
528b2c61 | 917 | return COMPLETE_PERSISTENT_MSG; |
918 | } | |
919 | ||
920 | HttpStateData::ConnectionStatus | |
921 | HttpStateData::persistentConnStatus() const | |
922 | { | |
528b2c61 | 923 | int clen; |
2afaba07 | 924 | debug(11, 3) ("persistentConnStatus: FD %d\n", fd); |
528b2c61 | 925 | ConnectionStatus result = statusIfComplete(); |
2afaba07 | 926 | debug(11, 5) ("persistentConnStatus: content_length=%d\n", |
62e76326 | 927 | reply->content_length); |
35282fbf | 928 | /* If we haven't seen the end of reply headers, we are not done */ |
62e76326 | 929 | |
2afaba07 | 930 | debug(11,5)("persistentConnStatus: flags.headers_parsed=%d\n", flags.headers_parsed); |
931 | ||
1a98175f | 932 | if (!flags.headers_parsed) |
62e76326 | 933 | return INCOMPLETE_MSG; |
934 | ||
06a5ae20 | 935 | clen = reply->bodySize(request->method); |
62e76326 | 936 | |
2afaba07 | 937 | debug(11,5)("persistentConnStatus: clen=%d\n", clen); |
938 | ||
35282fbf | 939 | /* If there is no message body, we can be persistent */ |
940 | if (0 == clen) | |
62e76326 | 941 | return result; |
942 | ||
35282fbf | 943 | /* If the body size is unknown we must wait for EOF */ |
944 | if (clen < 0) | |
62e76326 | 945 | return INCOMPLETE_MSG; |
946 | ||
35282fbf | 947 | /* If the body size is known, we must wait until we've gotten all of it. */ |
2afaba07 | 948 | /* old technique: |
949 | * if (entry->mem_obj->endOffset() < reply->content_length + reply->hdr_sz) */ | |
950 | debug(11,5)("persistentConnStatus: body_bytes_read=%d, content_length=%d\n", | |
951 | body_bytes_read, reply->content_length); | |
952 | ||
953 | if (body_bytes_read < reply->content_length) | |
62e76326 | 954 | return INCOMPLETE_MSG; |
955 | ||
35282fbf | 956 | /* We got it all */ |
528b2c61 | 957 | return result; |
603a02fd | 958 | } |
090089c4 | 959 | |
2afaba07 | 960 | /* |
961 | * This is the callback after some data has been read from the network | |
962 | */ | |
e5ee81f0 | 963 | void |
964 | HttpStateData::ReadReplyWrapper(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data) | |
c4b7a5a9 | 965 | { |
966 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
7194987f | 967 | assert (fd == httpState->fd); |
2afaba07 | 968 | // assert(buf == readBuf->content()); |
1d5161bd | 969 | PROF_start(HttpStateData_readReply); |
2afaba07 | 970 | httpState->readReply (len, flag, xerrno); |
1d5161bd | 971 | PROF_stop(HttpStateData_readReply); |
c4b7a5a9 | 972 | } |
973 | ||
2afdbf48 | 974 | /* XXX this function is too long! */ |
c4b7a5a9 | 975 | void |
2afaba07 | 976 | HttpStateData::readReply (size_t len, comm_err_t flag, int xerrno) |
090089c4 | 977 | { |
30a4f2a8 | 978 | int bin; |
090089c4 | 979 | int clen; |
f61f0107 | 980 | flags.do_next_read = 0; |
c4b7a5a9 | 981 | |
2afaba07 | 982 | /* |
983 | * Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us | |
984 | */ | |
62e76326 | 985 | |
c4b7a5a9 | 986 | if (flag == COMM_ERR_CLOSING) { |
d09176e1 | 987 | debug (11,3)("http socket closing\n"); |
c4b7a5a9 | 988 | return; |
989 | } | |
990 | ||
e92e4e44 | 991 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 992 | maybeReadData(); |
993 | return; | |
e92e4e44 | 994 | } |
c4b7a5a9 | 995 | |
1513873c | 996 | errno = 0; |
c4b7a5a9 | 997 | /* prepare the read size for the next read (if any) */ |
62e76326 | 998 | |
c4b7a5a9 | 999 | debug(11, 5) ("httpReadReply: FD %d: len %d.\n", fd, (int)len); |
62e76326 | 1000 | |
c4b7a5a9 | 1001 | if (flag == COMM_OK && len > 0) { |
2afaba07 | 1002 | readBuf->appended(len); |
447e176b | 1003 | #if DELAY_POOLS |
2afaba07 | 1004 | |
1005 | DelayId delayId = entry->mem_obj->mostBytesAllowed(); | |
62e76326 | 1006 | delayId.bytesIn(len); |
447e176b | 1007 | #endif |
62e76326 | 1008 | |
1009 | kb_incr(&statCounter.server.all.kbytes_in, len); | |
1010 | kb_incr(&statCounter.server.http.kbytes_in, len); | |
62e76326 | 1011 | IOStats.Http.reads++; |
1012 | ||
1013 | for (clen = len - 1, bin = 0; clen; bin++) | |
1014 | clen >>= 1; | |
1015 | ||
1016 | IOStats.Http.read_hist[bin]++; | |
30a4f2a8 | 1017 | } |
62e76326 | 1018 | |
5fa061b8 | 1019 | /* here the RFC says we should ignore whitespace between replies, but we can't as |
1020 | * doing so breaks HTTP/0.9 replies beginning with witespace, and in addition | |
1021 | * the response splitting countermeasures is extremely likely to trigger on this, | |
1022 | * not allowing connection reuse in the first place. | |
1023 | */ | |
1024 | #if DONT_DO_THIS | |
1a98175f | 1025 | if (!flags.headers_parsed && flag == COMM_OK && len > 0 && fd_table[fd].uses > 1) { |
5fa061b8 | 1026 | /* Skip whitespace between replies */ |
62e76326 | 1027 | |
5fa061b8 | 1028 | while (len > 0 && isspace(*buf)) |
62e76326 | 1029 | xmemmove(buf, buf + 1, len--); |
1030 | ||
1031 | if (len == 0) { | |
1032 | /* Continue to read... */ | |
21b92762 | 1033 | /* Timeout NOT increased. This whitespace was from previous reply */ |
f61f0107 | 1034 | flags.do_next_read = 1; |
62e76326 | 1035 | maybeReadData(); |
1036 | return; | |
1037 | } | |
5ede6c8f | 1038 | } |
62e76326 | 1039 | |
5fa061b8 | 1040 | #endif |
1041 | ||
c4b7a5a9 | 1042 | if (flag != COMM_OK || len < 0) { |
62e76326 | 1043 | debug(50, 2) ("httpReadReply: FD %d: read failure: %s.\n", |
1044 | fd, xstrerror()); | |
1045 | ||
1046 | if (ignoreErrno(errno)) { | |
f61f0107 | 1047 | flags.do_next_read = 1; |
6cae5db1 | 1048 | } else { |
62e76326 | 1049 | ErrorState *err; |
4eb368f9 | 1050 | err = errorCon(ERR_READ_ERROR, HTTP_BAD_GATEWAY); |
62e76326 | 1051 | err->xerrno = errno; |
b6b6f466 | 1052 | fwd->fail(err); |
f61f0107 | 1053 | flags.do_next_read = 0; |
62e76326 | 1054 | comm_close(fd); |
62e76326 | 1055 | } |
2afaba07 | 1056 | } else if (flag == COMM_OK && len == 0 && !flags.headers_parsed) { |
b6b6f466 | 1057 | fwd->fail(errorCon(ERR_ZERO_SIZE_OBJECT, HTTP_BAD_GATEWAY)); |
62e76326 | 1058 | eof = 1; |
f61f0107 | 1059 | flags.do_next_read = 0; |
62e76326 | 1060 | comm_close(fd); |
c4b7a5a9 | 1061 | } else if (flag == COMM_OK && len == 0) { |
62e76326 | 1062 | /* Connection closed; retrieval done. */ |
1063 | eof = 1; | |
1064 | ||
1a98175f | 1065 | if (!flags.headers_parsed) |
62e76326 | 1066 | /* |
3f7d66c7 | 1067 | * When we called processReplyHeader() before, we |
1a98175f | 1068 | * didn't find the end of headers, but now we are |
1069 | * definately at EOF, so we want to process the reply | |
1070 | * headers. | |
62e76326 | 1071 | */ |
2afaba07 | 1072 | processReplyHeader(); |
1073 | else if (getReply()->sline.status == HTTP_INVALID_HEADER && HttpVersion(0,9) != getReply()->sline.version) { | |
b6b6f466 | 1074 | fwd->fail(errorCon(ERR_INVALID_RESP, HTTP_BAD_GATEWAY)); |
f61f0107 | 1075 | flags.do_next_read = 0; |
47ac2ebe | 1076 | } else { |
4eb368f9 | 1077 | if (entry->mem_obj->getReply()->sline.status == HTTP_HEADER_TOO_LARGE) { |
4eb368f9 | 1078 | storeEntryReset(entry); |
b6b6f466 | 1079 | fwd->fail( errorCon(ERR_TOO_BIG, HTTP_BAD_GATEWAY)); |
1080 | fwd->dontRetry(true); | |
2afaba07 | 1081 | flags.do_next_read = 0; |
1082 | comm_close(fd); | |
4eb368f9 | 1083 | } else { |
2afaba07 | 1084 | transactionComplete(); |
4eb368f9 | 1085 | } |
62e76326 | 1086 | } |
090089c4 | 1087 | } else { |
1a98175f | 1088 | if (!flags.headers_parsed) { |
2afaba07 | 1089 | processReplyHeader(); |
62e76326 | 1090 | |
1a98175f | 1091 | if (flags.headers_parsed) { |
2afaba07 | 1092 | http_status s = getReply()->sline.status; |
1093 | HttpVersion httpver = getReply()->sline.version; | |
47ac2ebe | 1094 | |
b735b90c | 1095 | if (s == HTTP_INVALID_HEADER && httpver != HttpVersion(0,9)) { |
47ac2ebe | 1096 | storeEntryReset(entry); |
b6b6f466 | 1097 | fwd->fail( errorCon(ERR_INVALID_RESP, HTTP_BAD_GATEWAY)); |
47ac2ebe | 1098 | comm_close(fd); |
1099 | return; | |
1100 | } | |
1101 | ||
2afaba07 | 1102 | } |
1103 | } | |
1104 | ||
1105 | PROF_start(HttpStateData_processReplyBody); | |
1106 | processReplyBody(); | |
1107 | PROF_stop(HttpStateData_processReplyBody); | |
1108 | } | |
1109 | } | |
1110 | ||
1111 | /* | |
1112 | * Call this when there is data from the origin server | |
1113 | * which should be sent to either StoreEntry, or to ICAP... | |
1114 | */ | |
1115 | void | |
1116 | HttpStateData::writeReplyBody(const char *data, int len) | |
1117 | { | |
1118 | #if ICAP_CLIENT | |
62e76326 | 1119 | |
2afaba07 | 1120 | if (icap) { |
1121 | icap->sendMoreData (StoreIOBuffer(len, 0, (char*)data)); | |
1122 | return; | |
1123 | } | |
47ac2ebe | 1124 | |
225644d7 | 1125 | #endif |
62e76326 | 1126 | |
2afaba07 | 1127 | entry->write (StoreIOBuffer(len, currentOffset, (char*)data)); |
62e76326 | 1128 | |
2afaba07 | 1129 | currentOffset += len; |
e6ccf245 | 1130 | } |
1131 | ||
2afaba07 | 1132 | /* |
1133 | * processReplyBody has two purposes: | |
1134 | * 1 - take the reply body data, if any, and put it into either | |
1135 | * the StoreEntry, or give it over to ICAP. | |
1136 | * 2 - see if we made it to the end of the response (persistent | |
1137 | * connections and such) | |
1138 | */ | |
e6ccf245 | 1139 | void |
2afaba07 | 1140 | HttpStateData::processReplyBody() |
e6ccf245 | 1141 | { |
1a98175f | 1142 | if (!flags.headers_parsed) { |
f61f0107 | 1143 | flags.do_next_read = 1; |
62e76326 | 1144 | maybeReadData(); |
1145 | return; | |
528b2c61 | 1146 | } |
62e76326 | 1147 | |
2afaba07 | 1148 | #if ICAP_CLIENT |
1149 | if (icapAccessCheckPending) | |
1150 | return; | |
62e76326 | 1151 | |
2afaba07 | 1152 | #endif |
62e76326 | 1153 | |
2afaba07 | 1154 | /* |
1155 | * At this point the reply headers have been parsed and consumed. | |
1156 | * That means header content has been removed from readBuf and | |
1157 | * it contains only body data. | |
1158 | */ | |
1159 | writeReplyBody(readBuf->content(), readBuf->contentSize()); | |
62e76326 | 1160 | |
2afaba07 | 1161 | body_bytes_read += readBuf->contentSize(); |
1162 | ||
1163 | readBuf->consume(readBuf->contentSize()); | |
528b2c61 | 1164 | |
e6ccf245 | 1165 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1166 | /* |
2afaba07 | 1167 | * the above writeReplyBody() call could ABORT this entry, |
62e76326 | 1168 | * in that case, the server FD should already be closed. |
1169 | * there's nothing for us to do. | |
1170 | */ | |
1171 | (void) 0; | |
1172 | } else | |
1173 | switch (persistentConnStatus()) { | |
1174 | ||
1175 | case INCOMPLETE_MSG: | |
2afaba07 | 1176 | debug(11,5)("processReplyBody: INCOMPLETE_MSG\n"); |
21b92762 | 1177 | /* Wait for more data or EOF condition */ |
1178 | ||
1179 | if (flags.keepalive_broken) { | |
1180 | commSetTimeout(fd, 10, NULL, NULL); | |
1181 | } else { | |
1182 | commSetTimeout(fd, Config.Timeout.read, NULL, NULL); | |
1183 | } | |
1184 | ||
f61f0107 | 1185 | flags.do_next_read = 1; |
62e76326 | 1186 | break; |
1187 | ||
1188 | case COMPLETE_PERSISTENT_MSG: | |
2afaba07 | 1189 | debug(11,5)("processReplyBody: COMPLETE_PERSISTENT_MSG\n"); |
62e76326 | 1190 | /* yes we have to clear all these! */ |
62e76326 | 1191 | commSetTimeout(fd, -1, NULL, NULL); |
f61f0107 | 1192 | flags.do_next_read = 0; |
62e76326 | 1193 | |
1194 | comm_remove_close_handler(fd, httpStateFree, this); | |
b6b6f466 | 1195 | fwd->unregister(fd); |
bd0723ad | 1196 | |
1197 | if (_peer) { | |
1198 | if (_peer->options.originserver) | |
b6b6f466 | 1199 | fwd->pconnPush(fd, _peer->name, orig_request->port, orig_request->host); |
bd0723ad | 1200 | else |
b6b6f466 | 1201 | fwd->pconnPush(fd, _peer->name, _peer->http_port, NULL); |
bd0723ad | 1202 | } else { |
b6b6f466 | 1203 | fwd->pconnPush(fd, request->host, request->port, NULL); |
bd0723ad | 1204 | } |
1205 | ||
62e76326 | 1206 | fd = -1; |
2afaba07 | 1207 | |
1208 | transactionComplete(); | |
62e76326 | 1209 | return; |
1210 | ||
1211 | case COMPLETE_NONPERSISTENT_MSG: | |
2afaba07 | 1212 | debug(11,5)("processReplyBody: COMPLETE_NONPERSISTENT_MSG\n"); |
1213 | transactionComplete(); | |
62e76326 | 1214 | return; |
1215 | } | |
1216 | ||
c4b7a5a9 | 1217 | maybeReadData(); |
1218 | } | |
1219 | ||
1220 | void | |
1221 | HttpStateData::maybeReadData() | |
1222 | { | |
2afaba07 | 1223 | int read_sz = readBuf->spaceSize(); |
1224 | #if ICAP_CLIENT | |
1225 | ||
1226 | if (icap) { | |
1227 | /* | |
1228 | * Our ICAP message pipes have a finite size limit. We | |
1229 | * should not read more data from the network than will fit | |
1230 | * into the pipe buffer. If totally full, don't register | |
1231 | * the read handler at all. The ICAP side will call our | |
1232 | * icapSpaceAvailable() method when it has free space again. | |
1233 | */ | |
1234 | int icap_space = icap->potentialSpaceSize(); | |
1235 | ||
1236 | debugs(11,9, "HttpStateData may read up to min(" << icap_space << | |
1237 | ", " << read_sz << ") bytes"); | |
1238 | ||
1239 | if (icap_space < read_sz) | |
1240 | read_sz = icap_space; | |
1241 | } | |
1242 | ||
1243 | #endif | |
1244 | ||
1245 | debugs(11,9, "HttpStateData may read up to " << read_sz << " bytes"); | |
1246 | ||
1247 | /* | |
1248 | * why <2? Because delayAwareRead() won't actually read if | |
1249 | * you ask it to read 1 byte. The delayed read request | |
1250 | * just gets re-queued until the client side drains, then | |
1251 | * the I/O thread hangs. Better to not register any read | |
1252 | * handler until we get a notification from someone that | |
1253 | * its okay to read again. | |
1254 | */ | |
1255 | if (read_sz < 2) | |
1256 | return; | |
1257 | ||
f61f0107 | 1258 | if (flags.do_next_read) { |
1259 | flags.do_next_read = 0; | |
e5ee81f0 | 1260 | entry->delayAwareRead(fd, readBuf->space(), read_sz, ReadReplyWrapper, this); |
528b2c61 | 1261 | } |
090089c4 | 1262 | } |
1263 | ||
2afaba07 | 1264 | /* |
1265 | * This will be called when request write is complete. | |
1266 | */ | |
d576a6a6 | 1267 | void |
1268 | HttpStateData::SendComplete(int fd, char *bufnotused, size_t size, comm_err_t errflag, void *data) | |
090089c4 | 1269 | { |
e6ccf245 | 1270 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
a3d5953d | 1271 | debug(11, 5) ("httpSendComplete: FD %d: size %d: errflag %d.\n", |
62e76326 | 1272 | fd, (int) size, errflag); |
bc87dc25 | 1273 | #if URL_CHECKSUM_DEBUG |
62e76326 | 1274 | |
528b2c61 | 1275 | entry->mem_obj->checkUrlChecksum(); |
bc87dc25 | 1276 | #endif |
62e76326 | 1277 | |
ee1679df | 1278 | if (size > 0) { |
62e76326 | 1279 | fd_bytes(fd, size, FD_WRITE); |
1280 | kb_incr(&statCounter.server.all.kbytes_out, size); | |
1281 | kb_incr(&statCounter.server.http.kbytes_out, size); | |
ee1679df | 1282 | } |
62e76326 | 1283 | |
ea3a2a69 | 1284 | if (errflag == COMM_ERR_CLOSING) |
62e76326 | 1285 | return; |
1286 | ||
090089c4 | 1287 | if (errflag) { |
6cae5db1 | 1288 | ErrorState *err; |
4eb368f9 | 1289 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY); |
62e76326 | 1290 | err->xerrno = errno; |
b6b6f466 | 1291 | httpState->fwd->fail(err); |
62e76326 | 1292 | comm_close(fd); |
1293 | return; | |
090089c4 | 1294 | } |
72b63f06 | 1295 | |
2afaba07 | 1296 | /* |
1297 | * Set the read timeout here because it hasn't been set yet. | |
1298 | * We only set the read timeout after the request has been | |
1299 | * fully written to the server-side. If we start the timeout | |
1300 | * after connection establishment, then we are likely to hit | |
1301 | * the timeout for POST/PUT requests that have very large | |
1302 | * request bodies. | |
1303 | */ | |
1304 | commSetTimeout(fd, Config.Timeout.read, httpTimeout, httpState); | |
1305 | ||
72b63f06 | 1306 | httpState->flags.request_sent = 1; |
090089c4 | 1307 | } |
1308 | ||
2afaba07 | 1309 | /* |
1310 | * Calling this function marks the end of the HTTP transaction. | |
1311 | * i.e., done talking to the HTTP server. With ICAP, however, that | |
1312 | * does not mean that we're done with HttpStateData and the StoreEntry. | |
1313 | * We'll be expecting adapted data to come back from the ICAP | |
1314 | * routines. | |
1315 | */ | |
1316 | void | |
1317 | HttpStateData::transactionComplete() | |
1318 | { | |
2bb867b5 | 1319 | debugs(11,5,HERE << "transactionComplete FD " << fd << " this " << this); |
1320 | ||
2afaba07 | 1321 | if (fd >= 0) { |
b6b6f466 | 1322 | fwd->unregister(fd); |
2afaba07 | 1323 | comm_remove_close_handler(fd, httpStateFree, this); |
1324 | comm_close(fd); | |
1325 | fd = -1; | |
1326 | } | |
1327 | ||
1328 | #if ICAP_CLIENT | |
1329 | if (icap) { | |
1330 | icap->doneSending(); | |
30398be3 | 1331 | return; |
1332 | } | |
2afaba07 | 1333 | |
1334 | #endif | |
1335 | ||
b6b6f466 | 1336 | fwd->complete(); |
2afaba07 | 1337 | |
30398be3 | 1338 | httpStateFree(-1, this); |
2afaba07 | 1339 | } |
1340 | ||
99edd1c3 | 1341 | /* |
1342 | * build request headers and append them to a given MemBuf | |
e5ee81f0 | 1343 | * used by buildRequestPrefix() |
818c6c9e | 1344 | * note: initialised the HttpHeader, the caller is responsible for Clean()-ing |
99edd1c3 | 1345 | */ |
e1e72f06 | 1346 | void |
e5ee81f0 | 1347 | HttpStateData::httpBuildRequestHeader(HttpRequest * request, |
1348 | HttpRequest * orig_request, | |
1349 | StoreEntry * entry, | |
1350 | HttpHeader * hdr_out, | |
1351 | http_state_flags flags) | |
6bf8443a | 1352 | { |
99edd1c3 | 1353 | /* building buffer for complex strings */ |
5999b776 | 1354 | #define BBUF_SZ (MAX_URL+32) |
99edd1c3 | 1355 | LOCAL_ARRAY(char, bbuf, BBUF_SZ); |
99edd1c3 | 1356 | const HttpHeader *hdr_in = &orig_request->header; |
1357 | const HttpHeaderEntry *e; | |
6bccf575 | 1358 | String strFwd; |
99edd1c3 | 1359 | HttpHeaderPos pos = HttpHeaderInitPos; |
75faaa7a | 1360 | assert (hdr_out->owner == hoRequest); |
99edd1c3 | 1361 | /* append our IMS header */ |
62e76326 | 1362 | |
fa3e249f | 1363 | if (request->lastmod > -1) |
a9925b40 | 1364 | hdr_out->putTime(HDR_IF_MODIFIED_SINCE, request->lastmod); |
99edd1c3 | 1365 | |
528b2c61 | 1366 | bool we_do_ranges = decideIfWeDoRanges (orig_request); |
1367 | ||
a9925b40 | 1368 | String strConnection (hdr_in->getList(HDR_CONNECTION)); |
62e76326 | 1369 | |
a9925b40 | 1370 | while ((e = hdr_in->getEntry(&pos))) |
62e76326 | 1371 | copyOneHeaderFromClientsideRequestToUpstreamRequest(e, strConnection, request, orig_request, hdr_out, we_do_ranges, flags); |
528b2c61 | 1372 | |
43ae1d95 | 1373 | /* Abstraction break: We should interpret multipart/byterange responses |
528b2c61 | 1374 | * into offset-length data, and this works around our inability to do so. |
1375 | */ | |
62e76326 | 1376 | if (!we_do_ranges && orig_request->multipartRangeRequest()) { |
1377 | /* don't cache the result */ | |
1378 | orig_request->flags.cachable = 0; | |
1379 | /* pretend it's not a range request */ | |
00d77d6b | 1380 | delete orig_request->range; |
62e76326 | 1381 | orig_request->range = NULL; |
1382 | orig_request->flags.range = 0; | |
1383 | } | |
528b2c61 | 1384 | |
99edd1c3 | 1385 | /* append Via */ |
736cb6aa | 1386 | if (Config.onoff.via) { |
43ae1d95 | 1387 | String strVia; |
a9925b40 | 1388 | strVia = hdr_in->getList(HDR_VIA); |
62e76326 | 1389 | snprintf(bbuf, BBUF_SZ, "%d.%d %s", |
1390 | orig_request->http_ver.major, | |
1391 | orig_request->http_ver.minor, ThisCache); | |
1392 | strListAdd(&strVia, bbuf, ','); | |
a9925b40 | 1393 | hdr_out->putStr(HDR_VIA, strVia.buf()); |
62e76326 | 1394 | strVia.clean(); |
736cb6aa | 1395 | } |
62e76326 | 1396 | |
43ae1d95 | 1397 | #if ESI |
1398 | { | |
1399 | /* Append Surrogate-Capabilities */ | |
a9925b40 | 1400 | String strSurrogate (hdr_in->getList(HDR_SURROGATE_CAPABILITY)); |
ec43ae0e | 1401 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0 ESI/1.0\"", |
43ae1d95 | 1402 | Config.Accel.surrogate_id); |
1403 | strListAdd(&strSurrogate, bbuf, ','); | |
a9925b40 | 1404 | hdr_out->putStr(HDR_SURROGATE_CAPABILITY, strSurrogate.buf()); |
43ae1d95 | 1405 | } |
1406 | #endif | |
1407 | ||
99edd1c3 | 1408 | /* append X-Forwarded-For */ |
a9925b40 | 1409 | strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); |
62e76326 | 1410 | |
6056ae68 | 1411 | if (opt_forwarded_for && orig_request->client_addr.s_addr != no_addr.s_addr) |
62e76326 | 1412 | strListAdd(&strFwd, inet_ntoa(orig_request->client_addr), ','); |
6056ae68 | 1413 | else |
62e76326 | 1414 | strListAdd(&strFwd, "unknown", ','); |
1415 | ||
a9925b40 | 1416 | hdr_out->putStr(HDR_X_FORWARDED_FOR, strFwd.buf()); |
62e76326 | 1417 | |
528b2c61 | 1418 | strFwd.clean(); |
6bccf575 | 1419 | |
99edd1c3 | 1420 | /* append Host if not there already */ |
a9925b40 | 1421 | if (!hdr_out->has(HDR_HOST)) { |
62e76326 | 1422 | if (orig_request->peer_domain) { |
a9925b40 | 1423 | hdr_out->putStr(HDR_HOST, orig_request->peer_domain); |
62e76326 | 1424 | } else if (orig_request->port == urlDefaultPort(orig_request->protocol)) { |
1425 | /* use port# only if not default */ | |
a9925b40 | 1426 | hdr_out->putStr(HDR_HOST, orig_request->host); |
62e76326 | 1427 | } else { |
1428 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
1429 | orig_request->host, (int) orig_request->port); | |
1430 | } | |
6bf8443a | 1431 | } |
62e76326 | 1432 | |
c68e9c6b | 1433 | /* append Authorization if known in URL, not in header and going direct */ |
a9925b40 | 1434 | if (!hdr_out->has(HDR_AUTHORIZATION)) { |
62e76326 | 1435 | if (!request->flags.proxying && *request->login) { |
1436 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1437 | base64_encode(request->login)); | |
1438 | } | |
c68e9c6b | 1439 | } |
62e76326 | 1440 | |
c68e9c6b | 1441 | /* append Proxy-Authorization if configured for peer, and proxying */ |
c3b33cb7 | 1442 | if (request->flags.proxying && orig_request->peer_login && |
a9925b40 | 1443 | !hdr_out->has(HDR_PROXY_AUTHORIZATION)) { |
62e76326 | 1444 | if (*orig_request->peer_login == '*') { |
1445 | /* Special mode, to pass the username to the upstream cache */ | |
1446 | char loginbuf[256]; | |
1447 | const char *username = "-"; | |
1448 | ||
1449 | if (orig_request->auth_user_request) | |
1450 | username = orig_request->auth_user_request->username(); | |
abb929f0 | 1451 | else if (orig_request->extacl_user.size()) |
1452 | username = orig_request->extacl_user.buf(); | |
62e76326 | 1453 | |
1454 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1455 | ||
1456 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1457 | base64_encode(loginbuf)); | |
1458 | } else if (strcmp(orig_request->peer_login, "PASS") == 0) { | |
abb929f0 | 1459 | if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1460 | char loginbuf[256]; | |
1461 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); | |
1462 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1463 | base64_encode(loginbuf)); | |
1464 | } | |
62e76326 | 1465 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { |
1466 | /* Nothing to do */ | |
1467 | } else { | |
1468 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1469 | base64_encode(orig_request->peer_login)); | |
1470 | } | |
c68e9c6b | 1471 | } |
62e76326 | 1472 | |
be753325 | 1473 | /* append WWW-Authorization if configured for peer */ |
1474 | if (flags.originpeer && orig_request->peer_login && | |
a9925b40 | 1475 | !hdr_out->has(HDR_AUTHORIZATION)) { |
62e76326 | 1476 | if (strcmp(orig_request->peer_login, "PASS") == 0) { |
1477 | /* No credentials to forward.. (should have been done above if available) */ | |
1478 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { | |
1479 | /* Special mode, convert proxy authentication to WWW authentication | |
abb929f0 | 1480 | * (also applies to authentication provided by external acl) |
62e76326 | 1481 | */ |
a9925b40 | 1482 | const char *auth = hdr_in->getStr(HDR_PROXY_AUTHORIZATION); |
62e76326 | 1483 | |
1484 | if (auth && strncasecmp(auth, "basic ", 6) == 0) { | |
a9925b40 | 1485 | hdr_out->putStr(HDR_AUTHORIZATION, auth); |
abb929f0 | 1486 | } else if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1487 | char loginbuf[256]; | |
1488 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); | |
1489 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1490 | base64_encode(loginbuf)); | |
62e76326 | 1491 | } |
1492 | } else if (*orig_request->peer_login == '*') { | |
1493 | /* Special mode, to pass the username to the upstream cache */ | |
1494 | char loginbuf[256]; | |
1495 | const char *username = "-"; | |
1496 | ||
1497 | if (orig_request->auth_user_request) | |
f5691f9c | 1498 | username = orig_request->auth_user_request->username(); |
abb929f0 | 1499 | else if (orig_request->extacl_user.size()) |
1500 | username = orig_request->extacl_user.buf(); | |
62e76326 | 1501 | |
1502 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1503 | ||
1504 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1505 | base64_encode(loginbuf)); | |
1506 | } else { | |
1507 | /* Fixed login string */ | |
1508 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1509 | base64_encode(orig_request->peer_login)); | |
1510 | } | |
be753325 | 1511 | } |
62e76326 | 1512 | |
abb929f0 | 1513 | /* append Cache-Control, add max-age if not there already */ { |
a9925b40 | 1514 | HttpHdrCc *cc = hdr_in->getCc(); |
62e76326 | 1515 | |
1516 | if (!cc) | |
1517 | cc = httpHdrCcCreate(); | |
1518 | ||
1519 | if (!EBIT_TEST(cc->mask, CC_MAX_AGE)) { | |
43ae1d95 | 1520 | const char *url = |
1521 | entry ? storeUrl(entry) : urlCanonical(orig_request); | |
62e76326 | 1522 | httpHdrCcSetMaxAge(cc, getMaxAge(url)); |
1523 | ||
1524 | if (request->urlpath.size()) | |
1525 | assert(strstr(url, request->urlpath.buf())); | |
1526 | } | |
1527 | ||
ce2d6441 | 1528 | /* Set no-cache if determined needed but not found */ |
a9925b40 | 1529 | if (orig_request->flags.nocache && !hdr_in->has(HDR_PRAGMA)) |
ce2d6441 | 1530 | EBIT_SET(cc->mask, CC_NO_CACHE); |
1531 | ||
1532 | /* Enforce sibling relations */ | |
62e76326 | 1533 | if (flags.only_if_cached) |
1534 | EBIT_SET(cc->mask, CC_ONLY_IF_CACHED); | |
1535 | ||
a9925b40 | 1536 | hdr_out->putCc(cc); |
62e76326 | 1537 | |
1538 | httpHdrCcDestroy(cc); | |
6bf8443a | 1539 | } |
62e76326 | 1540 | |
99edd1c3 | 1541 | /* maybe append Connection: keep-alive */ |
b515fc11 | 1542 | if (flags.keepalive) { |
62e76326 | 1543 | if (flags.proxying) { |
a9925b40 | 1544 | hdr_out->putStr(HDR_PROXY_CONNECTION, "keep-alive"); |
62e76326 | 1545 | } else { |
a9925b40 | 1546 | hdr_out->putStr(HDR_CONNECTION, "keep-alive"); |
62e76326 | 1547 | } |
603a02fd | 1548 | } |
62e76326 | 1549 | |
a7ad6e4e | 1550 | /* append Front-End-Https */ |
1551 | if (flags.front_end_https) { | |
62e76326 | 1552 | if (flags.front_end_https == 1 || request->protocol == PROTO_HTTPS) |
a9925b40 | 1553 | hdr_out->putStr(HDR_FRONT_END_HTTPS, "On"); |
a7ad6e4e | 1554 | } |
1555 | ||
6bccf575 | 1556 | /* Now mangle the headers. */ |
4f56514c | 1557 | if (Config2.onoff.mangle_request_headers) |
5967c0bf | 1558 | httpHdrMangleList(hdr_out, request, ROR_REQUEST); |
62e76326 | 1559 | |
528b2c61 | 1560 | strConnection.clean(); |
99edd1c3 | 1561 | } |
1562 | ||
528b2c61 | 1563 | void |
190154cf | 1564 | copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, String strConnection, HttpRequest * request, HttpRequest * orig_request, HttpHeader * hdr_out, int we_do_ranges, http_state_flags flags) |
528b2c61 | 1565 | { |
1566 | debug(11, 5) ("httpBuildRequestHeader: %s: %s\n", | |
62e76326 | 1567 | e->name.buf(), e->value.buf()); |
1568 | ||
528b2c61 | 1569 | if (!httpRequestHdrAllowed(e, &strConnection)) { |
62e76326 | 1570 | debug(11, 2) ("'%s' header denied by anonymize_headers configuration\n",+ e->name.buf()); |
1571 | return; | |
528b2c61 | 1572 | } |
62e76326 | 1573 | |
528b2c61 | 1574 | switch (e->id) { |
62e76326 | 1575 | |
be753325 | 1576 | case HDR_PROXY_AUTHORIZATION: |
62e76326 | 1577 | /* Only pass on proxy authentication to peers for which |
1578 | * authentication forwarding is explicitly enabled | |
1579 | */ | |
1580 | ||
1581 | if (flags.proxying && orig_request->peer_login && | |
abb929f0 | 1582 | (strcmp(orig_request->peer_login, "PASS") == 0 || |
1583 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1584 | hdr_out->addEntry(e->clone()); |
62e76326 | 1585 | } |
1586 | ||
1587 | break; | |
1588 | ||
be753325 | 1589 | case HDR_AUTHORIZATION: |
62e76326 | 1590 | /* Pass on WWW authentication */ |
1591 | ||
1592 | if (!flags.originpeer) { | |
eede25e7 | 1593 | hdr_out->addEntry(e->clone()); |
62e76326 | 1594 | } else { |
1595 | /* In accelerators, only forward authentication if enabled | |
1596 | * (see also below for proxy->server authentication) | |
1597 | */ | |
1598 | ||
abb929f0 | 1599 | if (orig_request->peer_login && |
1600 | (strcmp(orig_request->peer_login, "PASS") == 0 || | |
1601 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1602 | hdr_out->addEntry(e->clone()); |
62e76326 | 1603 | } |
1604 | } | |
1605 | ||
1606 | break; | |
1607 | ||
be753325 | 1608 | case HDR_HOST: |
62e76326 | 1609 | /* |
b883b594 | 1610 | * Normally Squid rewrites the Host: header. |
1611 | * However, there is one case when we don't: If the URL | |
62e76326 | 1612 | * went through our redirector and the admin configured |
1613 | * 'redir_rewrites_host' to be off. | |
1614 | */ | |
1615 | ||
b883b594 | 1616 | if (request->flags.redirected && !Config.onoff.redir_rewrites_host) |
eede25e7 | 1617 | hdr_out->addEntry(e->clone()); |
b883b594 | 1618 | else { |
1619 | /* use port# only if not default */ | |
1620 | ||
1621 | if (orig_request->port == urlDefaultPort(orig_request->protocol)) { | |
a9925b40 | 1622 | hdr_out->putStr(HDR_HOST, orig_request->host); |
b883b594 | 1623 | } else { |
1624 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
1625 | orig_request->host, (int) orig_request->port); | |
1626 | } | |
1627 | } | |
62e76326 | 1628 | |
1629 | break; | |
1630 | ||
be753325 | 1631 | case HDR_IF_MODIFIED_SINCE: |
62e76326 | 1632 | /* append unless we added our own; |
1633 | * note: at most one client's ims header can pass through */ | |
b883b594 | 1634 | |
a9925b40 | 1635 | if (!hdr_out->has(HDR_IF_MODIFIED_SINCE)) |
eede25e7 | 1636 | hdr_out->addEntry(e->clone()); |
62e76326 | 1637 | |
1638 | break; | |
1639 | ||
be753325 | 1640 | case HDR_MAX_FORWARDS: |
62e76326 | 1641 | if (orig_request->method == METHOD_TRACE) { |
eede25e7 | 1642 | const int hops = e->getInt(); |
62e76326 | 1643 | |
1644 | if (hops > 0) | |
a9925b40 | 1645 | hdr_out->putInt(HDR_MAX_FORWARDS, hops - 1); |
62e76326 | 1646 | } |
1647 | ||
1648 | break; | |
1649 | ||
be753325 | 1650 | case HDR_VIA: |
62e76326 | 1651 | /* If Via is disabled then forward any received header as-is */ |
1652 | ||
1653 | if (!Config.onoff.via) | |
eede25e7 | 1654 | hdr_out->addEntry(e->clone()); |
62e76326 | 1655 | |
1656 | break; | |
1657 | ||
be753325 | 1658 | case HDR_RANGE: |
62e76326 | 1659 | |
be753325 | 1660 | case HDR_IF_RANGE: |
62e76326 | 1661 | |
be753325 | 1662 | case HDR_REQUEST_RANGE: |
62e76326 | 1663 | if (!we_do_ranges) |
eede25e7 | 1664 | hdr_out->addEntry(e->clone()); |
62e76326 | 1665 | |
1666 | break; | |
1667 | ||
be753325 | 1668 | case HDR_PROXY_CONNECTION: |
62e76326 | 1669 | |
be753325 | 1670 | case HDR_CONNECTION: |
62e76326 | 1671 | |
be753325 | 1672 | case HDR_X_FORWARDED_FOR: |
62e76326 | 1673 | |
be753325 | 1674 | case HDR_CACHE_CONTROL: |
62e76326 | 1675 | /* append these after the loop if needed */ |
1676 | break; | |
1677 | ||
be753325 | 1678 | case HDR_FRONT_END_HTTPS: |
62e76326 | 1679 | if (!flags.front_end_https) |
eede25e7 | 1680 | hdr_out->addEntry(e->clone()); |
62e76326 | 1681 | |
1682 | break; | |
1683 | ||
be753325 | 1684 | default: |
62e76326 | 1685 | /* pass on all other header fields */ |
eede25e7 | 1686 | hdr_out->addEntry(e->clone()); |
528b2c61 | 1687 | } |
1688 | } | |
1689 | ||
e5ee81f0 | 1690 | bool |
1691 | HttpStateData::decideIfWeDoRanges (HttpRequest * orig_request) | |
528b2c61 | 1692 | { |
e5ee81f0 | 1693 | bool result = true; |
62e76326 | 1694 | /* decide if we want to do Ranges ourselves |
1695 | * and fetch the whole object now) | |
1696 | * We want to handle Ranges ourselves iff | |
1697 | * - we can actually parse client Range specs | |
1698 | * - the specs are expected to be simple enough (e.g. no out-of-order ranges) | |
1699 | * - reply will be cachable | |
1700 | * (If the reply will be uncachable we have to throw it away after | |
1701 | * serving this request, so it is better to forward ranges to | |
1702 | * the server and fetch only the requested content) | |
1703 | */ | |
1704 | ||
1705 | if (NULL == orig_request->range || !orig_request->flags.cachable | |
1706 | || orig_request->range->offsetLimitExceeded()) | |
e5ee81f0 | 1707 | result = false; |
62e76326 | 1708 | |
1709 | debug(11, 8) ("decideIfWeDoRanges: range specs: %p, cachable: %d; we_do_ranges: %d\n", | |
1710 | orig_request->range, orig_request->flags.cachable, result); | |
1711 | ||
1712 | return result; | |
528b2c61 | 1713 | } |
1714 | ||
62e76326 | 1715 | /* build request prefix and append it to a given MemBuf; |
99edd1c3 | 1716 | * return the length of the prefix */ |
9bc73deb | 1717 | mb_size_t |
e5ee81f0 | 1718 | HttpStateData::buildRequestPrefix(HttpRequest * request, |
1719 | HttpRequest * orig_request, | |
1720 | StoreEntry * entry, | |
1721 | MemBuf * mb, | |
1722 | http_state_flags flags) | |
99edd1c3 | 1723 | { |
1724 | const int offset = mb->size; | |
450e0c10 | 1725 | HttpVersion httpver(1, 0); |
2fe7eff9 | 1726 | mb->Printf("%s %s HTTP/%d.%d\r\n", |
1727 | RequestMethodStr[request->method], | |
1728 | request->urlpath.size() ? request->urlpath.buf() : "/", | |
1729 | httpver.major,httpver.minor); | |
99edd1c3 | 1730 | /* build and pack headers */ |
1731 | { | |
75faaa7a | 1732 | HttpHeader hdr(hoRequest); |
62e76326 | 1733 | Packer p; |
1734 | httpBuildRequestHeader(request, orig_request, entry, &hdr, flags); | |
1735 | packerToMemInit(&p, mb); | |
a9925b40 | 1736 | hdr.packInto(&p); |
519e0948 | 1737 | hdr.clean(); |
62e76326 | 1738 | packerClean(&p); |
9d9d144b | 1739 | } |
99edd1c3 | 1740 | /* append header terminator */ |
2fe7eff9 | 1741 | mb->append(crlf, 2); |
99edd1c3 | 1742 | return mb->size - offset; |
6bf8443a | 1743 | } |
62e76326 | 1744 | |
090089c4 | 1745 | /* This will be called when connect completes. Write request. */ |
2bb867b5 | 1746 | void |
1747 | HttpStateData::sendRequest() | |
090089c4 | 1748 | { |
99edd1c3 | 1749 | MemBuf mb; |
901e234d | 1750 | CWCB *sendHeaderDone; |
090089c4 | 1751 | |
2bb867b5 | 1752 | debug(11, 5) ("httpSendRequest: FD %d: this %p.\n", fd, this); |
090089c4 | 1753 | |
2bb867b5 | 1754 | commSetTimeout(fd, Config.Timeout.lifetime, httpTimeout, this); |
1755 | flags.do_next_read = 1; | |
1756 | maybeReadData(); | |
21b92762 | 1757 | |
3b299123 | 1758 | debugs(32,3,HERE<< "request " << request << " body_reader = " << orig_request->body_reader.getRaw()); |
1759 | ||
1760 | if (orig_request->body_reader != NULL) | |
2bb867b5 | 1761 | sendHeaderDone = HttpStateData::SendRequestEntityWrapper; |
7db8b16d | 1762 | else |
62e76326 | 1763 | sendHeaderDone = HttpStateData::SendComplete; |
54220df8 | 1764 | |
2bb867b5 | 1765 | if (_peer != NULL) { |
1766 | if (_peer->options.originserver) { | |
1767 | flags.proxying = 0; | |
1768 | flags.originpeer = 1; | |
62e76326 | 1769 | } else { |
2bb867b5 | 1770 | flags.proxying = 1; |
1771 | flags.originpeer = 0; | |
62e76326 | 1772 | } |
be753325 | 1773 | } else { |
2bb867b5 | 1774 | flags.proxying = 0; |
1775 | flags.originpeer = 0; | |
be753325 | 1776 | } |
62e76326 | 1777 | |
efb9218c | 1778 | /* |
99edd1c3 | 1779 | * Is keep-alive okay for all request methods? |
efb9218c | 1780 | */ |
efd900cb | 1781 | if (!Config.onoff.server_pconns) |
2bb867b5 | 1782 | flags.keepalive = 0; |
1783 | else if (_peer == NULL) | |
1784 | flags.keepalive = 1; | |
1785 | else if (_peer->stats.n_keepalives_sent < 10) | |
1786 | flags.keepalive = 1; | |
1787 | else if ((double) _peer->stats.n_keepalives_recv / | |
1788 | (double) _peer->stats.n_keepalives_sent > 0.50) | |
1789 | flags.keepalive = 1; | |
1790 | ||
1791 | if (_peer) { | |
1792 | if (neighborType(_peer, request) == PEER_SIBLING && | |
1793 | !_peer->options.allow_miss) | |
1794 | flags.only_if_cached = 1; | |
1795 | ||
1796 | flags.front_end_https = _peer->front_end_https; | |
a7ad6e4e | 1797 | } |
62e76326 | 1798 | |
2fe7eff9 | 1799 | mb.init(); |
e5ee81f0 | 1800 | buildRequestPrefix(request, orig_request, entry, &mb, flags); |
21b92762 | 1801 | debug(11, 6) ("httpSendRequest: FD %d:\n%s\n", fd, mb.buf); |
2bb867b5 | 1802 | comm_old_write_mbuf(fd, &mb, sendHeaderDone, this); |
090089c4 | 1803 | } |
b6a2f15e | 1804 | |
910169e5 | 1805 | void |
b6b6f466 | 1806 | httpStart(FwdState *fwd) |
603a02fd | 1807 | { |
910169e5 | 1808 | debug(11, 3) ("httpStart: \"%s %s\"\n", |
a3d50c30 | 1809 | RequestMethodStr[fwd->request->method], |
62e76326 | 1810 | storeUrl(fwd->entry)); |
a3d50c30 | 1811 | HttpStateData *httpState = new HttpStateData(fwd); |
62e76326 | 1812 | |
83704487 | 1813 | statCounter.server.all.requests++; |
62e76326 | 1814 | |
83704487 | 1815 | statCounter.server.http.requests++; |
62e76326 | 1816 | |
2bb867b5 | 1817 | httpState->sendRequest(); |
62e76326 | 1818 | |
b6a2f15e | 1819 | /* |
1820 | * We used to set the read timeout here, but not any more. | |
1821 | * Now its set in httpSendComplete() after the full request, | |
1822 | * including request body, has been written to the server. | |
1823 | */ | |
090089c4 | 1824 | } |
1825 | ||
2bb867b5 | 1826 | void |
ea0cf66e | 1827 | HttpStateData::sendRequestEntityDone() |
2bb867b5 | 1828 | { |
4fb35c3c | 1829 | ACLChecklist ch; |
43ae1d95 | 1830 | debug(11, 5) ("httpSendRequestEntityDone: FD %d\n", fd); |
6dd9f4bd | 1831 | ch.request = HTTPMSGLOCK(request); |
506768d9 | 1832 | |
1833 | if (Config.accessList.brokenPosts) | |
1834 | ch.accessList = cbdataReference(Config.accessList.brokenPosts); | |
62e76326 | 1835 | |
108d65b2 | 1836 | /* cbdataReferenceDone() happens in either fastCheck() or ~ACLCheckList */ |
1837 | ||
94439e4e | 1838 | if (!Config.accessList.brokenPosts) { |
62e76326 | 1839 | debug(11, 5) ("httpSendRequestEntityDone: No brokenPosts list\n"); |
2bb867b5 | 1840 | HttpStateData::SendComplete(fd, NULL, 0, COMM_OK, this); |
b448c119 | 1841 | } else if (!ch.fastCheck()) { |
62e76326 | 1842 | debug(11, 5) ("httpSendRequestEntityDone: didn't match brokenPosts\n"); |
2bb867b5 | 1843 | HttpStateData::SendComplete(fd, NULL, 0, COMM_OK, this); |
94439e4e | 1844 | } else { |
62e76326 | 1845 | debug(11, 2) ("httpSendRequestEntityDone: matched brokenPosts\n"); |
2bb867b5 | 1846 | comm_old_write(fd, "\r\n", 2, HttpStateData::SendComplete, this, NULL); |
54220df8 | 1847 | } |
94439e4e | 1848 | } |
1849 | ||
3b299123 | 1850 | /* |
1851 | * RequestBodyHandlerWrapper | |
1852 | * | |
1853 | * BodyReader calls this when it has some body data for us. | |
1854 | * It is of type CBCB. | |
1855 | */ | |
2bb867b5 | 1856 | void |
3b299123 | 1857 | HttpStateData::RequestBodyHandlerWrapper(MemBuf &mb, void *data) |
94439e4e | 1858 | { |
9ed57c61 | 1859 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
3b299123 | 1860 | httpState->requestBodyHandler(mb); |
2bb867b5 | 1861 | } |
1862 | ||
1863 | void | |
3b299123 | 1864 | HttpStateData::requestBodyHandler(MemBuf &mb) |
2bb867b5 | 1865 | { |
2bb867b5 | 1866 | if (eof || fd < 0) { |
1867 | debugs(11, 1, HERE << "Transaction aborted while reading HTTP body"); | |
2bb867b5 | 1868 | return; |
1869 | } | |
62e76326 | 1870 | |
3b299123 | 1871 | if (mb.contentSize() > 0) { |
2bb867b5 | 1872 | if (flags.headers_parsed && !flags.abuse_detected) { |
1873 | flags.abuse_detected = 1; | |
21b92762 | 1874 | debug(11, 1) ("httpSendRequestEntryDone: Likely proxy abuse detected '%s' -> '%s'\n", |
2bb867b5 | 1875 | inet_ntoa(orig_request->client_addr), |
1876 | storeUrl(entry)); | |
21b92762 | 1877 | |
2bb867b5 | 1878 | if (getReply()->sline.status == HTTP_INVALID_HEADER) { |
2bb867b5 | 1879 | comm_close(fd); |
21b92762 | 1880 | return; |
1881 | } | |
1882 | } | |
1883 | ||
3b299123 | 1884 | /* |
1885 | * mb's content will be consumed in the SendRequestEntityWrapper | |
1886 | * callback after comm_write is done. | |
1887 | */ | |
1888 | flags.consume_body_data = 1; | |
1889 | ||
1890 | comm_old_write(fd, mb.content(), mb.contentSize(), SendRequestEntityWrapper, this, NULL); | |
1891 | } else if (orig_request->body_reader == NULL) { | |
1892 | /* Failed to get whole body, probably aborted */ | |
1893 | SendComplete(fd, NULL, 0, COMM_ERR_CLOSING, this); | |
1894 | } else if (orig_request->body_reader->remaining() == 0) { | |
62e76326 | 1895 | /* End of body */ |
ea0cf66e | 1896 | sendRequestEntityDone(); |
94439e4e | 1897 | } else { |
62e76326 | 1898 | /* Failed to get whole body, probably aborted */ |
3b299123 | 1899 | SendComplete(fd, NULL, 0, COMM_ERR_CLOSING, this); |
b6a2f15e | 1900 | } |
376bb137 | 1901 | } |
1902 | ||
2bb867b5 | 1903 | void |
1904 | HttpStateData::SendRequestEntityWrapper(int fd, char *bufnotused, size_t size, comm_err_t errflag, void *data) | |
376bb137 | 1905 | { |
e6ccf245 | 1906 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
2bb867b5 | 1907 | httpState->sendRequestEntity(fd, size, errflag); |
1908 | } | |
1909 | ||
1910 | void | |
1911 | HttpStateData::sendRequestEntity(int fd, size_t size, comm_err_t errflag) | |
1912 | { | |
c3d63b2a | 1913 | debug(11, 5) ("httpSendRequestEntity: FD %d: size %d: errflag %d.\n", |
62e76326 | 1914 | fd, (int) size, errflag); |
3b299123 | 1915 | debugs(32,3,HERE << "httpSendRequestEntity called"); |
1916 | assert(orig_request->body_reader != NULL); | |
62e76326 | 1917 | |
376bb137 | 1918 | if (size > 0) { |
62e76326 | 1919 | fd_bytes(fd, size, FD_WRITE); |
1920 | kb_incr(&statCounter.server.all.kbytes_out, size); | |
1921 | kb_incr(&statCounter.server.http.kbytes_out, size); | |
3b299123 | 1922 | |
1923 | if (flags.consume_body_data) { | |
1924 | orig_request->body_reader->consume(size); | |
1925 | orig_request->body_reader->bytes_read += size; | |
1926 | debugs(32,3," HTTP server body bytes_read=" << orig_request->body_reader->bytes_read); | |
1927 | } | |
376bb137 | 1928 | } |
62e76326 | 1929 | |
376bb137 | 1930 | if (errflag == COMM_ERR_CLOSING) |
62e76326 | 1931 | return; |
1932 | ||
376bb137 | 1933 | if (errflag) { |
6cae5db1 | 1934 | ErrorState *err; |
4eb368f9 | 1935 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY); |
62e76326 | 1936 | err->xerrno = errno; |
2bb867b5 | 1937 | fwd->fail(err); |
62e76326 | 1938 | comm_close(fd); |
1939 | return; | |
376bb137 | 1940 | } |
62e76326 | 1941 | |
94439e4e | 1942 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1943 | comm_close(fd); |
1944 | return; | |
376bb137 | 1945 | } |
62e76326 | 1946 | |
3b299123 | 1947 | size_t r = orig_request->body_reader->remaining(); |
1948 | debugs(32,3,HERE << "body remaining = " << r); | |
1949 | ||
1950 | if (r) { | |
1951 | debugs(32,3,HERE << "reading more body data"); | |
1952 | orig_request->body_reader->read(RequestBodyHandlerWrapper, this); | |
1953 | } else { | |
1954 | debugs(32,3,HERE << "done reading body data"); | |
1955 | sendRequestEntityDone(); | |
1956 | } | |
54220df8 | 1957 | } |
ccf44862 | 1958 | |
1959 | void | |
450e0c10 | 1960 | httpBuildVersion(HttpVersion * version, unsigned int major, unsigned int minor) |
110eb4e5 | 1961 | { |
1962 | version->major = major; | |
1963 | version->minor = minor; | |
ccf44862 | 1964 | } |
2afaba07 | 1965 | |
1966 | #if ICAP_CLIENT | |
1967 | ||
1968 | static void | |
1969 | icapAclCheckDoneWrapper(ICAPServiceRep::Pointer service, void *data) | |
1970 | { | |
1971 | HttpStateData *http = (HttpStateData *)data; | |
1972 | http->icapAclCheckDone(service); | |
1973 | } | |
1974 | ||
1975 | void | |
1976 | HttpStateData::icapAclCheckDone(ICAPServiceRep::Pointer service) | |
1977 | { | |
1978 | icapAccessCheckPending = false; | |
1979 | ||
1980 | if (service == NULL) { | |
1981 | // handle case where no service is selected; | |
db237875 | 1982 | entry->replaceHttpReply(reply); |
2afaba07 | 1983 | |
2afaba07 | 1984 | haveParsedReplyHeaders(); |
1985 | processReplyBody(); | |
1986 | ||
1987 | if (eof == 1) | |
1988 | transactionComplete(); | |
1989 | ||
1990 | return; | |
1991 | } | |
1992 | ||
1993 | if (doIcap(service) < 0) { | |
1994 | /* | |
1995 | * XXX Maybe instead of an error page we should | |
1996 | * handle the reply normally (without ICAP). | |
1997 | */ | |
1998 | ErrorState *err = errorCon(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR); | |
1999 | err->xerrno = errno; | |
6dd9f4bd | 2000 | err->request = HTTPMSGLOCK(orig_request); |
2afaba07 | 2001 | errorAppendEntry(entry, err); |
2002 | comm_close(fd); | |
2003 | return; | |
2004 | } | |
2005 | ||
132c60e0 | 2006 | icap->startRespMod(this, orig_request, reply); |
2afaba07 | 2007 | processReplyBody(); |
2008 | } | |
2009 | ||
2afaba07 | 2010 | /* |
2011 | * Called by ICAPClientRespmodPrecache when it has space available for us. | |
2012 | */ | |
2013 | void | |
2014 | HttpStateData::icapSpaceAvailable() | |
2015 | { | |
2016 | debug(11,5)("HttpStateData::icapSpaceAvailable() called\n"); | |
2017 | maybeReadData(); | |
2018 | } | |
2019 | ||
2020 | void | |
2021 | HttpStateData::takeAdaptedHeaders(HttpReply *rep) | |
2022 | { | |
2023 | debug(11,5)("HttpStateData::takeAdaptedHeaders() called\n"); | |
2024 | ||
2025 | if (!entry->isAccepting()) { | |
2026 | debug(11,5)("\toops, entry is not Accepting!\n"); | |
2027 | icap->ownerAbort(); | |
2028 | return; | |
2029 | } | |
2030 | ||
b559db5d | 2031 | assert (rep); |
db237875 | 2032 | entry->replaceHttpReply(rep); |
6dd9f4bd | 2033 | HTTPMSGUNLOCK(reply); |
4a56ee8d | 2034 | |
6dd9f4bd | 2035 | reply = HTTPMSGLOCK(rep); |
2afaba07 | 2036 | |
2037 | haveParsedReplyHeaders(); | |
2038 | ||
2039 | debug(11,5)("HttpStateData::takeAdaptedHeaders() finished\n"); | |
2040 | } | |
2041 | ||
2042 | void | |
2043 | HttpStateData::takeAdaptedBody(MemBuf *buf) | |
2044 | { | |
2045 | debug(11,5)("HttpStateData::takeAdaptedBody() called\n"); | |
1dd6edf2 | 2046 | debug(11,5)("\t%d bytes\n", (int) buf->contentSize()); |
2afaba07 | 2047 | debug(11,5)("\t%d is current offset\n", (int)currentOffset); |
2048 | ||
2049 | if (!entry->isAccepting()) { | |
2050 | debug(11,5)("\toops, entry is not Accepting!\n"); | |
2051 | icap->ownerAbort(); | |
2052 | return; | |
2053 | } | |
2054 | ||
2055 | entry->write(StoreIOBuffer(buf, currentOffset)); // write everything | |
2056 | currentOffset += buf->contentSize(); | |
2057 | buf->consume(buf->contentSize()); // consume everything written | |
2058 | } | |
2059 | ||
2060 | void | |
2061 | HttpStateData::doneAdapting() | |
2062 | { | |
2063 | debug(11,5)("HttpStateData::doneAdapting() called\n"); | |
2064 | ||
2065 | if (!entry->isAccepting()) { | |
2066 | debug(11,5)("\toops, entry is not Accepting!\n"); | |
2067 | icap->ownerAbort(); | |
2068 | } else { | |
b6b6f466 | 2069 | fwd->complete(); |
2afaba07 | 2070 | } |
2071 | ||
6965ab28 | 2072 | /* |
2073 | * ICAP is done, so we don't need this any more. | |
2074 | */ | |
2075 | delete icap; | |
2076 | ||
2077 | cbdataReferenceDone(icap); | |
2078 | ||
b559db5d | 2079 | if (fd >= 0) |
2080 | comm_close(fd); | |
2081 | else | |
2082 | httpStateFree(fd, this); | |
2afaba07 | 2083 | } |
2084 | ||
2085 | void | |
2086 | HttpStateData::abortAdapting() | |
2087 | { | |
2088 | debug(11,5)("HttpStateData::abortAdapting() called\n"); | |
2089 | ||
b559db5d | 2090 | /* |
2091 | * ICAP has given up, we're done with it too | |
2092 | */ | |
2093 | delete icap; | |
2094 | cbdataReferenceDone(icap); | |
2095 | ||
2afaba07 | 2096 | if (entry->isEmpty()) { |
2097 | ErrorState *err; | |
2098 | err = errorCon(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR); | |
6dd9f4bd | 2099 | err->request = HTTPMSGLOCK((HttpRequest *) request); |
2afaba07 | 2100 | err->xerrno = errno; |
b6b6f466 | 2101 | fwd->fail( err); |
2102 | fwd->dontRetry(true); | |
2afaba07 | 2103 | flags.do_next_read = 0; |
2104 | } | |
2105 | ||
6c2d6c93 | 2106 | if (fd >= 0) { |
2107 | comm_close(fd); | |
2108 | } else { | |
2109 | httpStateFree(-1, this); // deletes this | |
2110 | } | |
2afaba07 | 2111 | } |
2112 | ||
2113 | #endif |