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da2b3a17 | 1 | |
30a4f2a8 | 2 | /* |
b6445726 | 3 | * $Id: http.cc,v 1.500 2006/06/07 12:32:56 hno 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; |
b6445726 | 384 | |
385 | /* This strange looking define first looks up the frefresh pattern | |
386 | * and then checks if the specified flag is set. The main purpose | |
387 | * of this is to simplify the refresh pattern lookup and HTTP_VIOLATIONS | |
388 | * condition | |
389 | */ | |
390 | #define REFRESH_OVERRIDE(flag) \ | |
391 | ((R = (R ? R : refreshLimits(entry->mem_obj->url))) , \ | |
392 | (R && R->flags.flag)) | |
38f9c547 | 393 | #endif |
43ae1d95 | 394 | |
38f9c547 | 395 | if (surrogateNoStore) |
62e76326 | 396 | return 0; |
397 | ||
924f73bc | 398 | if (!ignoreCacheControl) { |
38f9c547 | 399 | if (EBIT_TEST(cc_mask, CC_PRIVATE)) { |
b6445726 | 400 | if (!REFRESH_OVERRIDE(ignore_private)) |
38f9c547 | 401 | return 0; |
402 | } | |
403 | ||
404 | if (EBIT_TEST(cc_mask, CC_NO_CACHE)) { | |
b6445726 | 405 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 406 | return 0; |
407 | } | |
408 | ||
409 | if (EBIT_TEST(cc_mask, CC_NO_STORE)) { | |
b6445726 | 410 | if (!REFRESH_OVERRIDE(ignore_no_store)) |
38f9c547 | 411 | return 0; |
412 | } | |
43ae1d95 | 413 | } |
414 | ||
924f73bc | 415 | if (request->flags.auth) { |
62e76326 | 416 | /* |
417 | * Responses to requests with authorization may be cached | |
418 | * only if a Cache-Control: public reply header is present. | |
419 | * RFC 2068, sec 14.9.4 | |
420 | */ | |
421 | ||
38f9c547 | 422 | if (!EBIT_TEST(cc_mask, CC_PUBLIC)) { |
b6445726 | 423 | if (!REFRESH_OVERRIDE(ignore_auth)) |
38f9c547 | 424 | return 0; |
425 | } | |
a6dfe2d9 | 426 | } |
62e76326 | 427 | |
c68e9c6b | 428 | /* Pragma: no-cache in _replies_ is not documented in HTTP, |
429 | * but servers like "Active Imaging Webcast/2.0" sure do use it */ | |
a9925b40 | 430 | if (hdr->has(HDR_PRAGMA)) { |
431 | String s = hdr->getList(HDR_PRAGMA); | |
62e76326 | 432 | const int no_cache = strListIsMember(&s, "no-cache", ','); |
433 | s.clean(); | |
434 | ||
38f9c547 | 435 | if (no_cache) { |
b6445726 | 436 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 437 | return 0; |
438 | } | |
c68e9c6b | 439 | } |
62e76326 | 440 | |
c68e9c6b | 441 | /* |
442 | * The "multipart/x-mixed-replace" content type is used for | |
443 | * continuous push replies. These are generally dynamic and | |
444 | * probably should not be cachable | |
445 | */ | |
a9925b40 | 446 | if ((v = hdr->getStr(HDR_CONTENT_TYPE))) |
62e76326 | 447 | if (!strncasecmp(v, "multipart/x-mixed-replace", 25)) |
448 | return 0; | |
449 | ||
2afaba07 | 450 | switch (getReply()->sline.status) { |
62e76326 | 451 | /* Responses that are cacheable */ |
452 | ||
19a04dac | 453 | case HTTP_OK: |
62e76326 | 454 | |
19a04dac | 455 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 456 | |
19a04dac | 457 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 458 | |
19a04dac | 459 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 460 | |
19a04dac | 461 | case HTTP_GONE: |
62e76326 | 462 | /* |
463 | * Don't cache objects that need to be refreshed on next request, | |
464 | * unless we know how to refresh it. | |
465 | */ | |
466 | ||
924f73bc | 467 | if (!refreshIsCachable(entry)) |
62e76326 | 468 | return 0; |
469 | ||
470 | /* don't cache objects from peers w/o LMT, Date, or Expires */ | |
471 | /* check that is it enough to check headers @?@ */ | |
472 | if (rep->date > -1) | |
473 | return 1; | |
474 | else if (rep->last_modified > -1) | |
475 | return 1; | |
924f73bc | 476 | else if (!_peer) |
62e76326 | 477 | return 1; |
478 | ||
479 | /* @?@ (here and 302): invalid expires header compiles to squid_curtime */ | |
480 | else if (rep->expires > -1) | |
481 | return 1; | |
482 | else | |
483 | return 0; | |
484 | ||
485 | /* NOTREACHED */ | |
486 | break; | |
487 | ||
488 | /* Responses that only are cacheable if the server says so */ | |
489 | ||
19a04dac | 490 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 491 | if (rep->expires > -1) |
492 | return 1; | |
493 | else | |
494 | return 0; | |
495 | ||
496 | /* NOTREACHED */ | |
497 | break; | |
498 | ||
499 | /* Errors can be negatively cached */ | |
500 | ||
19a04dac | 501 | case HTTP_NO_CONTENT: |
62e76326 | 502 | |
19a04dac | 503 | case HTTP_USE_PROXY: |
62e76326 | 504 | |
19a04dac | 505 | case HTTP_BAD_REQUEST: |
62e76326 | 506 | |
19a04dac | 507 | case HTTP_FORBIDDEN: |
62e76326 | 508 | |
19a04dac | 509 | case HTTP_NOT_FOUND: |
62e76326 | 510 | |
19a04dac | 511 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 512 | |
19a04dac | 513 | case HTTP_REQUEST_URI_TOO_LARGE: |
62e76326 | 514 | |
19a04dac | 515 | case HTTP_INTERNAL_SERVER_ERROR: |
62e76326 | 516 | |
19a04dac | 517 | case HTTP_NOT_IMPLEMENTED: |
62e76326 | 518 | |
19a04dac | 519 | case HTTP_BAD_GATEWAY: |
62e76326 | 520 | |
19a04dac | 521 | case HTTP_SERVICE_UNAVAILABLE: |
62e76326 | 522 | |
19a04dac | 523 | case HTTP_GATEWAY_TIMEOUT: |
62e76326 | 524 | return -1; |
525 | ||
526 | /* NOTREACHED */ | |
527 | break; | |
528 | ||
529 | /* Some responses can never be cached */ | |
530 | ||
0cdcddb9 | 531 | case HTTP_PARTIAL_CONTENT: /* Not yet supported */ |
62e76326 | 532 | |
19a04dac | 533 | case HTTP_SEE_OTHER: |
62e76326 | 534 | |
19a04dac | 535 | case HTTP_NOT_MODIFIED: |
62e76326 | 536 | |
19a04dac | 537 | case HTTP_UNAUTHORIZED: |
62e76326 | 538 | |
19a04dac | 539 | case HTTP_PROXY_AUTHENTICATION_REQUIRED: |
62e76326 | 540 | |
0cdcddb9 | 541 | case HTTP_INVALID_HEADER: /* Squid header parsing error */ |
4eb368f9 | 542 | |
543 | case HTTP_HEADER_TOO_LARGE: | |
62e76326 | 544 | return 0; |
545 | ||
c54e9052 | 546 | default: /* Unknown status code */ |
924f73bc | 547 | debug (11,0)("HttpStateData::cacheableReply: unknown http status code in reply\n"); |
62e76326 | 548 | |
549 | return 0; | |
550 | ||
551 | /* NOTREACHED */ | |
552 | break; | |
c54e9052 | 553 | } |
62e76326 | 554 | |
79d39a72 | 555 | /* NOTREACHED */ |
c54e9052 | 556 | } |
090089c4 | 557 | |
f66a9ef4 | 558 | /* |
559 | * For Vary, store the relevant request headers as | |
560 | * virtual headers in the reply | |
561 | * Returns false if the variance cannot be stored | |
562 | */ | |
563 | const char * | |
190154cf | 564 | httpMakeVaryMark(HttpRequest * request, HttpReply const * reply) |
f66a9ef4 | 565 | { |
f66a9ef4 | 566 | String vary, hdr; |
567 | const char *pos = NULL; | |
568 | const char *item; | |
569 | const char *value; | |
570 | int ilen; | |
528b2c61 | 571 | static String vstr; |
f66a9ef4 | 572 | |
528b2c61 | 573 | vstr.clean(); |
a9925b40 | 574 | vary = reply->header.getList(HDR_VARY); |
62e76326 | 575 | |
f66a9ef4 | 576 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 577 | char *name = (char *)xmalloc(ilen + 1); |
578 | xstrncpy(name, item, ilen + 1); | |
579 | Tolower(name); | |
9776e3cc | 580 | |
581 | if (strcmp(name, "*") == 0) { | |
582 | /* Can not handle "Vary: *" withtout ETag support */ | |
583 | safe_free(name); | |
584 | vstr.clean(); | |
585 | break; | |
586 | } | |
587 | ||
62e76326 | 588 | strListAdd(&vstr, name, ','); |
a9925b40 | 589 | hdr = request->header.getByName(name); |
62e76326 | 590 | safe_free(name); |
591 | value = hdr.buf(); | |
592 | ||
593 | if (value) { | |
594 | value = rfc1738_escape_part(value); | |
595 | vstr.append("=\"", 2); | |
596 | vstr.append(value); | |
597 | vstr.append("\"", 1); | |
598 | } | |
599 | ||
600 | hdr.clean(); | |
f66a9ef4 | 601 | } |
62e76326 | 602 | |
528b2c61 | 603 | vary.clean(); |
f66a9ef4 | 604 | #if X_ACCELERATOR_VARY |
62e76326 | 605 | |
aa38be4a | 606 | pos = NULL; |
a9925b40 | 607 | vary = reply->header.getList(HDR_X_ACCELERATOR_VARY); |
62e76326 | 608 | |
f66a9ef4 | 609 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 610 | char *name = (char *)xmalloc(ilen + 1); |
611 | xstrncpy(name, item, ilen + 1); | |
612 | Tolower(name); | |
613 | strListAdd(&vstr, name, ','); | |
a9925b40 | 614 | hdr = request->header.getByName(name); |
62e76326 | 615 | safe_free(name); |
616 | value = hdr.buf(); | |
617 | ||
618 | if (value) { | |
619 | value = rfc1738_escape_part(value); | |
620 | vstr.append("=\"", 2); | |
621 | vstr.append(value); | |
622 | vstr.append("\"", 1); | |
623 | } | |
624 | ||
625 | hdr.clean(); | |
f66a9ef4 | 626 | } |
62e76326 | 627 | |
528b2c61 | 628 | vary.clean(); |
f66a9ef4 | 629 | #endif |
62e76326 | 630 | |
528b2c61 | 631 | debug(11, 3) ("httpMakeVaryMark: %s\n", vstr.buf()); |
632 | return vstr.buf(); | |
f66a9ef4 | 633 | } |
634 | ||
4eb368f9 | 635 | void |
636 | HttpStateData::failReply(HttpReply *reply, http_status const & status) | |
637 | { | |
638 | reply->sline.version = HttpVersion(1, 0); | |
639 | reply->sline.status = status; | |
db237875 | 640 | entry->replaceHttpReply(reply); |
4eb368f9 | 641 | |
642 | if (eof == 1) { | |
2afaba07 | 643 | transactionComplete(); |
4eb368f9 | 644 | } |
645 | } | |
646 | ||
2afaba07 | 647 | void |
648 | HttpStateData::keepaliveAccounting(HttpReply *reply) | |
649 | { | |
650 | if (flags.keepalive) | |
651 | if (_peer) | |
652 | _peer->stats.n_keepalives_sent++; | |
653 | ||
654 | if (reply->keep_alive) { | |
655 | if (_peer) | |
656 | _peer->stats.n_keepalives_recv++; | |
657 | ||
658 | if (Config.onoff.detect_broken_server_pconns && reply->bodySize(request->method) == -1) { | |
659 | debug(11, 1) ("keepaliveAccounting: Impossible keep-alive header from '%s'\n", storeUrl(entry)); | |
660 | // debug(11, 2) ("GOT HTTP REPLY HDR:\n---------\n%s\n----------\n", readBuf->content()); | |
661 | flags.keepalive_broken = 1; | |
662 | } | |
663 | } | |
664 | } | |
665 | ||
666 | void | |
667 | HttpStateData::checkDateSkew(HttpReply *reply) | |
668 | { | |
669 | if (reply->date > -1 && !_peer) { | |
670 | int skew = abs((int)(reply->date - squid_curtime)); | |
671 | ||
672 | if (skew > 86400) | |
673 | debug(11, 3) ("%s's clock is skewed by %d seconds!\n", | |
674 | request->host, skew); | |
675 | } | |
676 | } | |
677 | ||
678 | /* | |
4eb368f9 | 679 | * This creates the error page itself.. its likely |
680 | * that the forward ported reply header max size patch | |
681 | * generates non http conformant error pages - in which | |
682 | * case the errors where should be 'BAD_GATEWAY' etc | |
683 | */ | |
b8d8561b | 684 | void |
2afaba07 | 685 | HttpStateData::processReplyHeader() |
f5558c95 | 686 | { |
528b2c61 | 687 | /* Creates a blank header. If this routine is made incremental, this will |
688 | * not do | |
689 | */ | |
4a56ee8d | 690 | HttpReply *newrep = new HttpReply; |
82384411 | 691 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
2afaba07 | 692 | debug(11, 3) ("processReplyHeader: key '%s'\n", entry->getMD5Text()); |
62e76326 | 693 | |
1a98175f | 694 | assert(!flags.headers_parsed); |
62e76326 | 695 | |
2afaba07 | 696 | http_status error = HTTP_STATUS_NONE; |
62e76326 | 697 | |
4a56ee8d | 698 | const bool parsed = newrep->parse(readBuf, eof, &error); |
62e76326 | 699 | |
2afaba07 | 700 | if (!parsed && error > 0) { // unrecoverable parsing error |
701 | debugs(11, 3, "processReplyHeader: Non-HTTP-compliant header: '" << readBuf->content() << "'"); | |
1a98175f | 702 | flags.headers_parsed = 1; |
2afaba07 | 703 | // negated result yields http_status |
4a56ee8d | 704 | failReply (newrep, error); |
82384411 | 705 | ctx_exit(ctx); |
4eb368f9 | 706 | return; |
707 | } | |
62e76326 | 708 | |
2afaba07 | 709 | if (!parsed) { // need more data |
710 | assert(!error); | |
711 | assert(!eof); | |
4a56ee8d | 712 | delete newrep; |
82384411 | 713 | ctx_exit(ctx); |
62e76326 | 714 | return; |
f5558c95 | 715 | } |
62e76326 | 716 | |
6dd9f4bd | 717 | reply = HTTPMSGLOCK(newrep); |
4a56ee8d | 718 | |
9bc73deb | 719 | debug(11, 9) ("GOT HTTP REPLY HDR:\n---------\n%s\n----------\n", |
2afaba07 | 720 | readBuf->content()); |
4eb368f9 | 721 | |
6965ab28 | 722 | readBuf->consume(headersEnd(readBuf->content(), readBuf->contentSize())); |
4a56ee8d | 723 | |
6965ab28 | 724 | flags.headers_parsed = 1; |
725 | ||
2afaba07 | 726 | keepaliveAccounting(reply); |
47ac2ebe | 727 | |
2afaba07 | 728 | checkDateSkew(reply); |
47ac2ebe | 729 | |
43ae1d95 | 730 | processSurrogateControl (reply); |
528b2c61 | 731 | |
732 | /* TODO: IF the reply is a 1.0 reply, AND it has a Connection: Header | |
733 | * Parse the header and remove all referenced headers | |
734 | */ | |
735 | ||
2afaba07 | 736 | #if ICAP_CLIENT |
737 | ||
ab7ac359 | 738 | if (TheICAPConfig.onoff) { |
2afaba07 | 739 | ICAPAccessCheck *icap_access_check = |
740 | new ICAPAccessCheck(ICAP::methodRespmod, ICAP::pointPreCache, request, reply, icapAclCheckDoneWrapper, this); | |
741 | ||
742 | icapAccessCheckPending = true; | |
743 | icap_access_check->check(); // will eventually delete self | |
744 | ctx_exit(ctx); | |
745 | return; | |
746 | } | |
ab7ac359 | 747 | |
2afaba07 | 748 | #endif |
749 | ||
db237875 | 750 | entry->replaceHttpReply(reply); |
2afaba07 | 751 | |
2afaba07 | 752 | haveParsedReplyHeaders(); |
753 | ||
754 | if (eof == 1) { | |
755 | transactionComplete(); | |
756 | } | |
757 | ||
758 | ctx_exit(ctx); | |
759 | } | |
760 | ||
761 | /* | |
762 | * This function used to be joined with processReplyHeader(), but | |
763 | * we split it for ICAP. | |
764 | */ | |
765 | void | |
766 | HttpStateData::haveParsedReplyHeaders() | |
767 | { | |
768 | Ctx ctx = ctx_enter(entry->mem_obj->url); | |
769 | ||
770 | if (getReply()->sline.status == HTTP_PARTIAL_CONTENT && | |
771 | getReply()->content_range) | |
772 | currentOffset = getReply()->content_range->spec.offset; | |
62e76326 | 773 | |
9bc73deb | 774 | storeTimestampsSet(entry); |
62e76326 | 775 | |
9bc73deb | 776 | /* Check if object is cacheable or not based on reply code */ |
2afaba07 | 777 | debug(11, 3) ("haveParsedReplyHeaders: HTTP CODE: %d\n", getReply()->sline.status); |
62e76326 | 778 | |
9bc73deb | 779 | if (neighbors_do_private_keys) |
2afaba07 | 780 | httpMaybeRemovePublic(entry, getReply()->sline.status); |
e6ccf245 | 781 | |
a9925b40 | 782 | if (getReply()->header.has(HDR_VARY) |
f66a9ef4 | 783 | #if X_ACCELERATOR_VARY |
a9925b40 | 784 | || getReply()->header.has(HDR_X_ACCELERATOR_VARY) |
f66a9ef4 | 785 | #endif |
4b44c907 | 786 | ) { |
2afaba07 | 787 | const char *vary = httpMakeVaryMark(orig_request, getReply()); |
4b44c907 | 788 | |
789 | if (!vary) { | |
5ed72359 | 790 | entry->makePrivate(); |
4b44c907 | 791 | goto no_cache; |
792 | ||
62e76326 | 793 | } |
794 | ||
4b44c907 | 795 | entry->mem_obj->vary_headers = xstrdup(vary); |
796 | } | |
797 | ||
2afaba07 | 798 | #if WIP_FWD_LOG |
799 | fwdStatus(fwd, s); | |
800 | ||
801 | #endif | |
802 | /* | |
803 | * If its not a reply that we will re-forward, then | |
804 | * allow the client to get it. | |
805 | */ | |
b6b6f466 | 806 | if (!fwd->reforwardableStatus(getReply()->sline.status)) |
2afaba07 | 807 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); |
808 | ||
4b44c907 | 809 | switch (cacheableReply()) { |
810 | ||
811 | case 1: | |
5ed72359 | 812 | entry->makePublic(); |
62e76326 | 813 | break; |
814 | ||
9bc73deb | 815 | case 0: |
5ed72359 | 816 | entry->makePrivate(); |
62e76326 | 817 | break; |
818 | ||
9bc73deb | 819 | case -1: |
4b44c907 | 820 | |
821 | if (Config.negativeTtl > 0) | |
5ed72359 | 822 | entry->cacheNegatively(); |
4b44c907 | 823 | else |
5ed72359 | 824 | entry->makePrivate(); |
4b44c907 | 825 | |
62e76326 | 826 | break; |
827 | ||
9bc73deb | 828 | default: |
62e76326 | 829 | assert(0); |
4b44c907 | 830 | |
62e76326 | 831 | break; |
9bc73deb | 832 | } |
62e76326 | 833 | |
4b44c907 | 834 | no_cache: |
835 | ||
2afaba07 | 836 | if (!ignoreCacheControl && getReply()->cache_control) { |
837 | if (EBIT_TEST(getReply()->cache_control->mask, CC_PROXY_REVALIDATE)) | |
62e76326 | 838 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
2afaba07 | 839 | else if (EBIT_TEST(getReply()->cache_control->mask, CC_MUST_REVALIDATE)) |
62e76326 | 840 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
9bc73deb | 841 | } |
62e76326 | 842 | |
9bc73deb | 843 | ctx_exit(ctx); |
c3609322 | 844 | #if HEADERS_LOG |
62e76326 | 845 | |
2afaba07 | 846 | headersLog(1, 0, request->method, getReply()); |
c3609322 | 847 | #endif |
f5558c95 | 848 | } |
849 | ||
528b2c61 | 850 | HttpStateData::ConnectionStatus |
851 | HttpStateData::statusIfComplete() const | |
603a02fd | 852 | { |
2afaba07 | 853 | HttpReply const *rep = getReply(); |
528b2c61 | 854 | /* If the reply wants to close the connection, it takes precedence */ |
62e76326 | 855 | |
2afaba07 | 856 | if (httpHeaderHasConnDir(&rep->header, "close")) |
62e76326 | 857 | return COMPLETE_NONPERSISTENT_MSG; |
858 | ||
528b2c61 | 859 | /* If we didn't send a keep-alive request header, then this |
978e455f | 860 | * can not be a persistent connection. |
861 | */ | |
528b2c61 | 862 | if (!flags.keepalive) |
62e76326 | 863 | return COMPLETE_NONPERSISTENT_MSG; |
864 | ||
72b63f06 | 865 | /* |
866 | * If we haven't sent the whole request then this can not be a persistent | |
867 | * connection. | |
868 | */ | |
869 | if (!flags.request_sent) { | |
2afdbf48 | 870 | debug(11, 1) ("statusIfComplete: Request not yet fully sent \"%s %s\"\n", |
72b63f06 | 871 | RequestMethodStr[orig_request->method], |
872 | storeUrl(entry)); | |
873 | return COMPLETE_NONPERSISTENT_MSG; | |
874 | } | |
875 | ||
9f5a2895 | 876 | /* |
877 | * What does the reply have to say about keep-alive? | |
878 | */ | |
b6a2f15e | 879 | /* |
880 | * XXX BUG? | |
881 | * If the origin server (HTTP/1.0) does not send a keep-alive | |
882 | * header, but keeps the connection open anyway, what happens? | |
883 | * We'll return here and http.c waits for an EOF before changing | |
884 | * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT | |
885 | * and an error status code, and we might have to wait until | |
886 | * the server times out the socket. | |
887 | */ | |
2afaba07 | 888 | if (!rep->keep_alive) |
528b2c61 | 889 | return COMPLETE_NONPERSISTENT_MSG; |
62e76326 | 890 | |
528b2c61 | 891 | return COMPLETE_PERSISTENT_MSG; |
892 | } | |
893 | ||
894 | HttpStateData::ConnectionStatus | |
895 | HttpStateData::persistentConnStatus() const | |
896 | { | |
528b2c61 | 897 | int clen; |
2afaba07 | 898 | debug(11, 3) ("persistentConnStatus: FD %d\n", fd); |
528b2c61 | 899 | ConnectionStatus result = statusIfComplete(); |
2afaba07 | 900 | debug(11, 5) ("persistentConnStatus: content_length=%d\n", |
62e76326 | 901 | reply->content_length); |
35282fbf | 902 | /* If we haven't seen the end of reply headers, we are not done */ |
62e76326 | 903 | |
2afaba07 | 904 | debug(11,5)("persistentConnStatus: flags.headers_parsed=%d\n", flags.headers_parsed); |
905 | ||
1a98175f | 906 | if (!flags.headers_parsed) |
62e76326 | 907 | return INCOMPLETE_MSG; |
908 | ||
06a5ae20 | 909 | clen = reply->bodySize(request->method); |
62e76326 | 910 | |
2afaba07 | 911 | debug(11,5)("persistentConnStatus: clen=%d\n", clen); |
912 | ||
35282fbf | 913 | /* If there is no message body, we can be persistent */ |
914 | if (0 == clen) | |
62e76326 | 915 | return result; |
916 | ||
35282fbf | 917 | /* If the body size is unknown we must wait for EOF */ |
918 | if (clen < 0) | |
62e76326 | 919 | return INCOMPLETE_MSG; |
920 | ||
35282fbf | 921 | /* If the body size is known, we must wait until we've gotten all of it. */ |
2afaba07 | 922 | /* old technique: |
923 | * if (entry->mem_obj->endOffset() < reply->content_length + reply->hdr_sz) */ | |
924 | debug(11,5)("persistentConnStatus: body_bytes_read=%d, content_length=%d\n", | |
925 | body_bytes_read, reply->content_length); | |
926 | ||
927 | if (body_bytes_read < reply->content_length) | |
62e76326 | 928 | return INCOMPLETE_MSG; |
929 | ||
35282fbf | 930 | /* We got it all */ |
528b2c61 | 931 | return result; |
603a02fd | 932 | } |
090089c4 | 933 | |
2afaba07 | 934 | /* |
935 | * This is the callback after some data has been read from the network | |
936 | */ | |
e5ee81f0 | 937 | void |
938 | HttpStateData::ReadReplyWrapper(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data) | |
c4b7a5a9 | 939 | { |
940 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
7194987f | 941 | assert (fd == httpState->fd); |
2afaba07 | 942 | // assert(buf == readBuf->content()); |
1d5161bd | 943 | PROF_start(HttpStateData_readReply); |
2afaba07 | 944 | httpState->readReply (len, flag, xerrno); |
1d5161bd | 945 | PROF_stop(HttpStateData_readReply); |
c4b7a5a9 | 946 | } |
947 | ||
2afdbf48 | 948 | /* XXX this function is too long! */ |
c4b7a5a9 | 949 | void |
2afaba07 | 950 | HttpStateData::readReply (size_t len, comm_err_t flag, int xerrno) |
090089c4 | 951 | { |
30a4f2a8 | 952 | int bin; |
090089c4 | 953 | int clen; |
f61f0107 | 954 | flags.do_next_read = 0; |
c4b7a5a9 | 955 | |
2afaba07 | 956 | /* |
957 | * Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us | |
958 | */ | |
62e76326 | 959 | |
c4b7a5a9 | 960 | if (flag == COMM_ERR_CLOSING) { |
d09176e1 | 961 | debug (11,3)("http socket closing\n"); |
c4b7a5a9 | 962 | return; |
963 | } | |
964 | ||
e92e4e44 | 965 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 966 | maybeReadData(); |
967 | return; | |
e92e4e44 | 968 | } |
c4b7a5a9 | 969 | |
1513873c | 970 | errno = 0; |
c4b7a5a9 | 971 | /* prepare the read size for the next read (if any) */ |
62e76326 | 972 | |
c4b7a5a9 | 973 | debug(11, 5) ("httpReadReply: FD %d: len %d.\n", fd, (int)len); |
62e76326 | 974 | |
c4b7a5a9 | 975 | if (flag == COMM_OK && len > 0) { |
2afaba07 | 976 | readBuf->appended(len); |
447e176b | 977 | #if DELAY_POOLS |
2afaba07 | 978 | |
979 | DelayId delayId = entry->mem_obj->mostBytesAllowed(); | |
62e76326 | 980 | delayId.bytesIn(len); |
447e176b | 981 | #endif |
62e76326 | 982 | |
983 | kb_incr(&statCounter.server.all.kbytes_in, len); | |
984 | kb_incr(&statCounter.server.http.kbytes_in, len); | |
62e76326 | 985 | IOStats.Http.reads++; |
986 | ||
987 | for (clen = len - 1, bin = 0; clen; bin++) | |
988 | clen >>= 1; | |
989 | ||
990 | IOStats.Http.read_hist[bin]++; | |
30a4f2a8 | 991 | } |
62e76326 | 992 | |
5fa061b8 | 993 | /* here the RFC says we should ignore whitespace between replies, but we can't as |
994 | * doing so breaks HTTP/0.9 replies beginning with witespace, and in addition | |
995 | * the response splitting countermeasures is extremely likely to trigger on this, | |
996 | * not allowing connection reuse in the first place. | |
997 | */ | |
998 | #if DONT_DO_THIS | |
1a98175f | 999 | if (!flags.headers_parsed && flag == COMM_OK && len > 0 && fd_table[fd].uses > 1) { |
5fa061b8 | 1000 | /* Skip whitespace between replies */ |
62e76326 | 1001 | |
5fa061b8 | 1002 | while (len > 0 && isspace(*buf)) |
62e76326 | 1003 | xmemmove(buf, buf + 1, len--); |
1004 | ||
1005 | if (len == 0) { | |
1006 | /* Continue to read... */ | |
21b92762 | 1007 | /* Timeout NOT increased. This whitespace was from previous reply */ |
f61f0107 | 1008 | flags.do_next_read = 1; |
62e76326 | 1009 | maybeReadData(); |
1010 | return; | |
1011 | } | |
5ede6c8f | 1012 | } |
62e76326 | 1013 | |
5fa061b8 | 1014 | #endif |
1015 | ||
c4b7a5a9 | 1016 | if (flag != COMM_OK || len < 0) { |
62e76326 | 1017 | debug(50, 2) ("httpReadReply: FD %d: read failure: %s.\n", |
1018 | fd, xstrerror()); | |
1019 | ||
1020 | if (ignoreErrno(errno)) { | |
f61f0107 | 1021 | flags.do_next_read = 1; |
6cae5db1 | 1022 | } else { |
62e76326 | 1023 | ErrorState *err; |
4eb368f9 | 1024 | err = errorCon(ERR_READ_ERROR, HTTP_BAD_GATEWAY); |
62e76326 | 1025 | err->xerrno = errno; |
b6b6f466 | 1026 | fwd->fail(err); |
f61f0107 | 1027 | flags.do_next_read = 0; |
62e76326 | 1028 | comm_close(fd); |
62e76326 | 1029 | } |
2afaba07 | 1030 | } else if (flag == COMM_OK && len == 0 && !flags.headers_parsed) { |
b6b6f466 | 1031 | fwd->fail(errorCon(ERR_ZERO_SIZE_OBJECT, HTTP_BAD_GATEWAY)); |
62e76326 | 1032 | eof = 1; |
f61f0107 | 1033 | flags.do_next_read = 0; |
62e76326 | 1034 | comm_close(fd); |
c4b7a5a9 | 1035 | } else if (flag == COMM_OK && len == 0) { |
62e76326 | 1036 | /* Connection closed; retrieval done. */ |
1037 | eof = 1; | |
1038 | ||
1a98175f | 1039 | if (!flags.headers_parsed) |
62e76326 | 1040 | /* |
3f7d66c7 | 1041 | * When we called processReplyHeader() before, we |
1a98175f | 1042 | * didn't find the end of headers, but now we are |
1043 | * definately at EOF, so we want to process the reply | |
1044 | * headers. | |
62e76326 | 1045 | */ |
2afaba07 | 1046 | processReplyHeader(); |
1047 | else if (getReply()->sline.status == HTTP_INVALID_HEADER && HttpVersion(0,9) != getReply()->sline.version) { | |
b6b6f466 | 1048 | fwd->fail(errorCon(ERR_INVALID_RESP, HTTP_BAD_GATEWAY)); |
f61f0107 | 1049 | flags.do_next_read = 0; |
47ac2ebe | 1050 | } else { |
4eb368f9 | 1051 | if (entry->mem_obj->getReply()->sline.status == HTTP_HEADER_TOO_LARGE) { |
4eb368f9 | 1052 | storeEntryReset(entry); |
b6b6f466 | 1053 | fwd->fail( errorCon(ERR_TOO_BIG, HTTP_BAD_GATEWAY)); |
1054 | fwd->dontRetry(true); | |
2afaba07 | 1055 | flags.do_next_read = 0; |
1056 | comm_close(fd); | |
4eb368f9 | 1057 | } else { |
2afaba07 | 1058 | transactionComplete(); |
4eb368f9 | 1059 | } |
62e76326 | 1060 | } |
090089c4 | 1061 | } else { |
1a98175f | 1062 | if (!flags.headers_parsed) { |
2afaba07 | 1063 | processReplyHeader(); |
62e76326 | 1064 | |
1a98175f | 1065 | if (flags.headers_parsed) { |
2afaba07 | 1066 | http_status s = getReply()->sline.status; |
1067 | HttpVersion httpver = getReply()->sline.version; | |
47ac2ebe | 1068 | |
b735b90c | 1069 | if (s == HTTP_INVALID_HEADER && httpver != HttpVersion(0,9)) { |
47ac2ebe | 1070 | storeEntryReset(entry); |
b6b6f466 | 1071 | fwd->fail( errorCon(ERR_INVALID_RESP, HTTP_BAD_GATEWAY)); |
47ac2ebe | 1072 | comm_close(fd); |
1073 | return; | |
1074 | } | |
1075 | ||
2afaba07 | 1076 | } |
1077 | } | |
1078 | ||
1079 | PROF_start(HttpStateData_processReplyBody); | |
1080 | processReplyBody(); | |
1081 | PROF_stop(HttpStateData_processReplyBody); | |
1082 | } | |
1083 | } | |
1084 | ||
1085 | /* | |
1086 | * Call this when there is data from the origin server | |
1087 | * which should be sent to either StoreEntry, or to ICAP... | |
1088 | */ | |
1089 | void | |
1090 | HttpStateData::writeReplyBody(const char *data, int len) | |
1091 | { | |
1092 | #if ICAP_CLIENT | |
62e76326 | 1093 | |
2afaba07 | 1094 | if (icap) { |
1095 | icap->sendMoreData (StoreIOBuffer(len, 0, (char*)data)); | |
1096 | return; | |
1097 | } | |
47ac2ebe | 1098 | |
225644d7 | 1099 | #endif |
62e76326 | 1100 | |
2afaba07 | 1101 | entry->write (StoreIOBuffer(len, currentOffset, (char*)data)); |
62e76326 | 1102 | |
2afaba07 | 1103 | currentOffset += len; |
e6ccf245 | 1104 | } |
1105 | ||
2afaba07 | 1106 | /* |
1107 | * processReplyBody has two purposes: | |
1108 | * 1 - take the reply body data, if any, and put it into either | |
1109 | * the StoreEntry, or give it over to ICAP. | |
1110 | * 2 - see if we made it to the end of the response (persistent | |
1111 | * connections and such) | |
1112 | */ | |
e6ccf245 | 1113 | void |
2afaba07 | 1114 | HttpStateData::processReplyBody() |
e6ccf245 | 1115 | { |
1a98175f | 1116 | if (!flags.headers_parsed) { |
f61f0107 | 1117 | flags.do_next_read = 1; |
62e76326 | 1118 | maybeReadData(); |
1119 | return; | |
528b2c61 | 1120 | } |
62e76326 | 1121 | |
2afaba07 | 1122 | #if ICAP_CLIENT |
1123 | if (icapAccessCheckPending) | |
1124 | return; | |
62e76326 | 1125 | |
2afaba07 | 1126 | #endif |
62e76326 | 1127 | |
2afaba07 | 1128 | /* |
1129 | * At this point the reply headers have been parsed and consumed. | |
1130 | * That means header content has been removed from readBuf and | |
1131 | * it contains only body data. | |
1132 | */ | |
1133 | writeReplyBody(readBuf->content(), readBuf->contentSize()); | |
62e76326 | 1134 | |
2afaba07 | 1135 | body_bytes_read += readBuf->contentSize(); |
1136 | ||
1137 | readBuf->consume(readBuf->contentSize()); | |
528b2c61 | 1138 | |
e6ccf245 | 1139 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1140 | /* |
2afaba07 | 1141 | * the above writeReplyBody() call could ABORT this entry, |
62e76326 | 1142 | * in that case, the server FD should already be closed. |
1143 | * there's nothing for us to do. | |
1144 | */ | |
1145 | (void) 0; | |
1146 | } else | |
1147 | switch (persistentConnStatus()) { | |
1148 | ||
1149 | case INCOMPLETE_MSG: | |
2afaba07 | 1150 | debug(11,5)("processReplyBody: INCOMPLETE_MSG\n"); |
21b92762 | 1151 | /* Wait for more data or EOF condition */ |
1152 | ||
1153 | if (flags.keepalive_broken) { | |
1154 | commSetTimeout(fd, 10, NULL, NULL); | |
1155 | } else { | |
1156 | commSetTimeout(fd, Config.Timeout.read, NULL, NULL); | |
1157 | } | |
1158 | ||
f61f0107 | 1159 | flags.do_next_read = 1; |
62e76326 | 1160 | break; |
1161 | ||
1162 | case COMPLETE_PERSISTENT_MSG: | |
2afaba07 | 1163 | debug(11,5)("processReplyBody: COMPLETE_PERSISTENT_MSG\n"); |
62e76326 | 1164 | /* yes we have to clear all these! */ |
62e76326 | 1165 | commSetTimeout(fd, -1, NULL, NULL); |
f61f0107 | 1166 | flags.do_next_read = 0; |
62e76326 | 1167 | |
1168 | comm_remove_close_handler(fd, httpStateFree, this); | |
b6b6f466 | 1169 | fwd->unregister(fd); |
bd0723ad | 1170 | |
1171 | if (_peer) { | |
1172 | if (_peer->options.originserver) | |
b6b6f466 | 1173 | fwd->pconnPush(fd, _peer->name, orig_request->port, orig_request->host); |
bd0723ad | 1174 | else |
b6b6f466 | 1175 | fwd->pconnPush(fd, _peer->name, _peer->http_port, NULL); |
bd0723ad | 1176 | } else { |
b6b6f466 | 1177 | fwd->pconnPush(fd, request->host, request->port, NULL); |
bd0723ad | 1178 | } |
1179 | ||
62e76326 | 1180 | fd = -1; |
2afaba07 | 1181 | |
1182 | transactionComplete(); | |
62e76326 | 1183 | return; |
1184 | ||
1185 | case COMPLETE_NONPERSISTENT_MSG: | |
2afaba07 | 1186 | debug(11,5)("processReplyBody: COMPLETE_NONPERSISTENT_MSG\n"); |
1187 | transactionComplete(); | |
62e76326 | 1188 | return; |
1189 | } | |
1190 | ||
c4b7a5a9 | 1191 | maybeReadData(); |
1192 | } | |
1193 | ||
1194 | void | |
1195 | HttpStateData::maybeReadData() | |
1196 | { | |
2afaba07 | 1197 | int read_sz = readBuf->spaceSize(); |
1198 | #if ICAP_CLIENT | |
1199 | ||
1200 | if (icap) { | |
1201 | /* | |
1202 | * Our ICAP message pipes have a finite size limit. We | |
1203 | * should not read more data from the network than will fit | |
1204 | * into the pipe buffer. If totally full, don't register | |
1205 | * the read handler at all. The ICAP side will call our | |
1206 | * icapSpaceAvailable() method when it has free space again. | |
1207 | */ | |
1208 | int icap_space = icap->potentialSpaceSize(); | |
1209 | ||
1210 | debugs(11,9, "HttpStateData may read up to min(" << icap_space << | |
1211 | ", " << read_sz << ") bytes"); | |
1212 | ||
1213 | if (icap_space < read_sz) | |
1214 | read_sz = icap_space; | |
1215 | } | |
1216 | ||
1217 | #endif | |
1218 | ||
1219 | debugs(11,9, "HttpStateData may read up to " << read_sz << " bytes"); | |
1220 | ||
1221 | /* | |
1222 | * why <2? Because delayAwareRead() won't actually read if | |
1223 | * you ask it to read 1 byte. The delayed read request | |
1224 | * just gets re-queued until the client side drains, then | |
1225 | * the I/O thread hangs. Better to not register any read | |
1226 | * handler until we get a notification from someone that | |
1227 | * its okay to read again. | |
1228 | */ | |
1229 | if (read_sz < 2) | |
1230 | return; | |
1231 | ||
f61f0107 | 1232 | if (flags.do_next_read) { |
1233 | flags.do_next_read = 0; | |
e5ee81f0 | 1234 | entry->delayAwareRead(fd, readBuf->space(), read_sz, ReadReplyWrapper, this); |
528b2c61 | 1235 | } |
090089c4 | 1236 | } |
1237 | ||
2afaba07 | 1238 | /* |
1239 | * This will be called when request write is complete. | |
1240 | */ | |
d576a6a6 | 1241 | void |
1242 | HttpStateData::SendComplete(int fd, char *bufnotused, size_t size, comm_err_t errflag, void *data) | |
090089c4 | 1243 | { |
e6ccf245 | 1244 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
a3d5953d | 1245 | debug(11, 5) ("httpSendComplete: FD %d: size %d: errflag %d.\n", |
62e76326 | 1246 | fd, (int) size, errflag); |
bc87dc25 | 1247 | #if URL_CHECKSUM_DEBUG |
62e76326 | 1248 | |
528b2c61 | 1249 | entry->mem_obj->checkUrlChecksum(); |
bc87dc25 | 1250 | #endif |
62e76326 | 1251 | |
ee1679df | 1252 | if (size > 0) { |
62e76326 | 1253 | fd_bytes(fd, size, FD_WRITE); |
1254 | kb_incr(&statCounter.server.all.kbytes_out, size); | |
1255 | kb_incr(&statCounter.server.http.kbytes_out, size); | |
ee1679df | 1256 | } |
62e76326 | 1257 | |
ea3a2a69 | 1258 | if (errflag == COMM_ERR_CLOSING) |
62e76326 | 1259 | return; |
1260 | ||
090089c4 | 1261 | if (errflag) { |
6cae5db1 | 1262 | ErrorState *err; |
4eb368f9 | 1263 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY); |
62e76326 | 1264 | err->xerrno = errno; |
b6b6f466 | 1265 | httpState->fwd->fail(err); |
62e76326 | 1266 | comm_close(fd); |
1267 | return; | |
090089c4 | 1268 | } |
72b63f06 | 1269 | |
2afaba07 | 1270 | /* |
1271 | * Set the read timeout here because it hasn't been set yet. | |
1272 | * We only set the read timeout after the request has been | |
1273 | * fully written to the server-side. If we start the timeout | |
1274 | * after connection establishment, then we are likely to hit | |
1275 | * the timeout for POST/PUT requests that have very large | |
1276 | * request bodies. | |
1277 | */ | |
1278 | commSetTimeout(fd, Config.Timeout.read, httpTimeout, httpState); | |
1279 | ||
72b63f06 | 1280 | httpState->flags.request_sent = 1; |
090089c4 | 1281 | } |
1282 | ||
2afaba07 | 1283 | /* |
1284 | * Calling this function marks the end of the HTTP transaction. | |
1285 | * i.e., done talking to the HTTP server. With ICAP, however, that | |
1286 | * does not mean that we're done with HttpStateData and the StoreEntry. | |
1287 | * We'll be expecting adapted data to come back from the ICAP | |
1288 | * routines. | |
1289 | */ | |
1290 | void | |
1291 | HttpStateData::transactionComplete() | |
1292 | { | |
2bb867b5 | 1293 | debugs(11,5,HERE << "transactionComplete FD " << fd << " this " << this); |
1294 | ||
2afaba07 | 1295 | if (fd >= 0) { |
b6b6f466 | 1296 | fwd->unregister(fd); |
2afaba07 | 1297 | comm_remove_close_handler(fd, httpStateFree, this); |
1298 | comm_close(fd); | |
1299 | fd = -1; | |
1300 | } | |
1301 | ||
1302 | #if ICAP_CLIENT | |
1303 | if (icap) { | |
1304 | icap->doneSending(); | |
30398be3 | 1305 | return; |
1306 | } | |
2afaba07 | 1307 | |
1308 | #endif | |
1309 | ||
b6b6f466 | 1310 | fwd->complete(); |
2afaba07 | 1311 | |
30398be3 | 1312 | httpStateFree(-1, this); |
2afaba07 | 1313 | } |
1314 | ||
99edd1c3 | 1315 | /* |
1316 | * build request headers and append them to a given MemBuf | |
e5ee81f0 | 1317 | * used by buildRequestPrefix() |
818c6c9e | 1318 | * note: initialised the HttpHeader, the caller is responsible for Clean()-ing |
99edd1c3 | 1319 | */ |
e1e72f06 | 1320 | void |
e5ee81f0 | 1321 | HttpStateData::httpBuildRequestHeader(HttpRequest * request, |
1322 | HttpRequest * orig_request, | |
1323 | StoreEntry * entry, | |
1324 | HttpHeader * hdr_out, | |
1325 | http_state_flags flags) | |
6bf8443a | 1326 | { |
99edd1c3 | 1327 | /* building buffer for complex strings */ |
5999b776 | 1328 | #define BBUF_SZ (MAX_URL+32) |
99edd1c3 | 1329 | LOCAL_ARRAY(char, bbuf, BBUF_SZ); |
99edd1c3 | 1330 | const HttpHeader *hdr_in = &orig_request->header; |
1331 | const HttpHeaderEntry *e; | |
6bccf575 | 1332 | String strFwd; |
99edd1c3 | 1333 | HttpHeaderPos pos = HttpHeaderInitPos; |
75faaa7a | 1334 | assert (hdr_out->owner == hoRequest); |
99edd1c3 | 1335 | /* append our IMS header */ |
62e76326 | 1336 | |
fa3e249f | 1337 | if (request->lastmod > -1) |
a9925b40 | 1338 | hdr_out->putTime(HDR_IF_MODIFIED_SINCE, request->lastmod); |
99edd1c3 | 1339 | |
528b2c61 | 1340 | bool we_do_ranges = decideIfWeDoRanges (orig_request); |
1341 | ||
a9925b40 | 1342 | String strConnection (hdr_in->getList(HDR_CONNECTION)); |
62e76326 | 1343 | |
a9925b40 | 1344 | while ((e = hdr_in->getEntry(&pos))) |
62e76326 | 1345 | copyOneHeaderFromClientsideRequestToUpstreamRequest(e, strConnection, request, orig_request, hdr_out, we_do_ranges, flags); |
528b2c61 | 1346 | |
43ae1d95 | 1347 | /* Abstraction break: We should interpret multipart/byterange responses |
528b2c61 | 1348 | * into offset-length data, and this works around our inability to do so. |
1349 | */ | |
62e76326 | 1350 | if (!we_do_ranges && orig_request->multipartRangeRequest()) { |
1351 | /* don't cache the result */ | |
1352 | orig_request->flags.cachable = 0; | |
1353 | /* pretend it's not a range request */ | |
00d77d6b | 1354 | delete orig_request->range; |
62e76326 | 1355 | orig_request->range = NULL; |
1356 | orig_request->flags.range = 0; | |
1357 | } | |
528b2c61 | 1358 | |
99edd1c3 | 1359 | /* append Via */ |
736cb6aa | 1360 | if (Config.onoff.via) { |
43ae1d95 | 1361 | String strVia; |
a9925b40 | 1362 | strVia = hdr_in->getList(HDR_VIA); |
62e76326 | 1363 | snprintf(bbuf, BBUF_SZ, "%d.%d %s", |
1364 | orig_request->http_ver.major, | |
1365 | orig_request->http_ver.minor, ThisCache); | |
1366 | strListAdd(&strVia, bbuf, ','); | |
a9925b40 | 1367 | hdr_out->putStr(HDR_VIA, strVia.buf()); |
62e76326 | 1368 | strVia.clean(); |
736cb6aa | 1369 | } |
62e76326 | 1370 | |
43ae1d95 | 1371 | #if ESI |
1372 | { | |
1373 | /* Append Surrogate-Capabilities */ | |
a9925b40 | 1374 | String strSurrogate (hdr_in->getList(HDR_SURROGATE_CAPABILITY)); |
ec43ae0e | 1375 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0 ESI/1.0\"", |
43ae1d95 | 1376 | Config.Accel.surrogate_id); |
1377 | strListAdd(&strSurrogate, bbuf, ','); | |
a9925b40 | 1378 | hdr_out->putStr(HDR_SURROGATE_CAPABILITY, strSurrogate.buf()); |
43ae1d95 | 1379 | } |
1380 | #endif | |
1381 | ||
99edd1c3 | 1382 | /* append X-Forwarded-For */ |
a9925b40 | 1383 | strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); |
62e76326 | 1384 | |
6056ae68 | 1385 | if (opt_forwarded_for && orig_request->client_addr.s_addr != no_addr.s_addr) |
62e76326 | 1386 | strListAdd(&strFwd, inet_ntoa(orig_request->client_addr), ','); |
6056ae68 | 1387 | else |
62e76326 | 1388 | strListAdd(&strFwd, "unknown", ','); |
1389 | ||
a9925b40 | 1390 | hdr_out->putStr(HDR_X_FORWARDED_FOR, strFwd.buf()); |
62e76326 | 1391 | |
528b2c61 | 1392 | strFwd.clean(); |
6bccf575 | 1393 | |
99edd1c3 | 1394 | /* append Host if not there already */ |
a9925b40 | 1395 | if (!hdr_out->has(HDR_HOST)) { |
62e76326 | 1396 | if (orig_request->peer_domain) { |
a9925b40 | 1397 | hdr_out->putStr(HDR_HOST, orig_request->peer_domain); |
62e76326 | 1398 | } else if (orig_request->port == urlDefaultPort(orig_request->protocol)) { |
1399 | /* use port# only if not default */ | |
a9925b40 | 1400 | hdr_out->putStr(HDR_HOST, orig_request->host); |
62e76326 | 1401 | } else { |
1402 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
1403 | orig_request->host, (int) orig_request->port); | |
1404 | } | |
6bf8443a | 1405 | } |
62e76326 | 1406 | |
c68e9c6b | 1407 | /* append Authorization if known in URL, not in header and going direct */ |
a9925b40 | 1408 | if (!hdr_out->has(HDR_AUTHORIZATION)) { |
62e76326 | 1409 | if (!request->flags.proxying && *request->login) { |
1410 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1411 | base64_encode(request->login)); | |
1412 | } | |
c68e9c6b | 1413 | } |
62e76326 | 1414 | |
c68e9c6b | 1415 | /* append Proxy-Authorization if configured for peer, and proxying */ |
c3b33cb7 | 1416 | if (request->flags.proxying && orig_request->peer_login && |
a9925b40 | 1417 | !hdr_out->has(HDR_PROXY_AUTHORIZATION)) { |
62e76326 | 1418 | if (*orig_request->peer_login == '*') { |
1419 | /* Special mode, to pass the username to the upstream cache */ | |
1420 | char loginbuf[256]; | |
1421 | const char *username = "-"; | |
1422 | ||
1423 | if (orig_request->auth_user_request) | |
1424 | username = orig_request->auth_user_request->username(); | |
abb929f0 | 1425 | else if (orig_request->extacl_user.size()) |
1426 | username = orig_request->extacl_user.buf(); | |
62e76326 | 1427 | |
1428 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1429 | ||
1430 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1431 | base64_encode(loginbuf)); | |
1432 | } else if (strcmp(orig_request->peer_login, "PASS") == 0) { | |
abb929f0 | 1433 | if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1434 | char loginbuf[256]; | |
1435 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); | |
1436 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1437 | base64_encode(loginbuf)); | |
1438 | } | |
62e76326 | 1439 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { |
1440 | /* Nothing to do */ | |
1441 | } else { | |
1442 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1443 | base64_encode(orig_request->peer_login)); | |
1444 | } | |
c68e9c6b | 1445 | } |
62e76326 | 1446 | |
be753325 | 1447 | /* append WWW-Authorization if configured for peer */ |
1448 | if (flags.originpeer && orig_request->peer_login && | |
a9925b40 | 1449 | !hdr_out->has(HDR_AUTHORIZATION)) { |
62e76326 | 1450 | if (strcmp(orig_request->peer_login, "PASS") == 0) { |
1451 | /* No credentials to forward.. (should have been done above if available) */ | |
1452 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { | |
1453 | /* Special mode, convert proxy authentication to WWW authentication | |
abb929f0 | 1454 | * (also applies to authentication provided by external acl) |
62e76326 | 1455 | */ |
a9925b40 | 1456 | const char *auth = hdr_in->getStr(HDR_PROXY_AUTHORIZATION); |
62e76326 | 1457 | |
1458 | if (auth && strncasecmp(auth, "basic ", 6) == 0) { | |
a9925b40 | 1459 | hdr_out->putStr(HDR_AUTHORIZATION, auth); |
abb929f0 | 1460 | } else if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1461 | char loginbuf[256]; | |
1462 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); | |
1463 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1464 | base64_encode(loginbuf)); | |
62e76326 | 1465 | } |
1466 | } else if (*orig_request->peer_login == '*') { | |
1467 | /* Special mode, to pass the username to the upstream cache */ | |
1468 | char loginbuf[256]; | |
1469 | const char *username = "-"; | |
1470 | ||
1471 | if (orig_request->auth_user_request) | |
f5691f9c | 1472 | username = orig_request->auth_user_request->username(); |
abb929f0 | 1473 | else if (orig_request->extacl_user.size()) |
1474 | username = orig_request->extacl_user.buf(); | |
62e76326 | 1475 | |
1476 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1477 | ||
1478 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1479 | base64_encode(loginbuf)); | |
1480 | } else { | |
1481 | /* Fixed login string */ | |
1482 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1483 | base64_encode(orig_request->peer_login)); | |
1484 | } | |
be753325 | 1485 | } |
62e76326 | 1486 | |
abb929f0 | 1487 | /* append Cache-Control, add max-age if not there already */ { |
a9925b40 | 1488 | HttpHdrCc *cc = hdr_in->getCc(); |
62e76326 | 1489 | |
1490 | if (!cc) | |
1491 | cc = httpHdrCcCreate(); | |
1492 | ||
1493 | if (!EBIT_TEST(cc->mask, CC_MAX_AGE)) { | |
43ae1d95 | 1494 | const char *url = |
1495 | entry ? storeUrl(entry) : urlCanonical(orig_request); | |
62e76326 | 1496 | httpHdrCcSetMaxAge(cc, getMaxAge(url)); |
1497 | ||
1498 | if (request->urlpath.size()) | |
1499 | assert(strstr(url, request->urlpath.buf())); | |
1500 | } | |
1501 | ||
ce2d6441 | 1502 | /* Set no-cache if determined needed but not found */ |
a9925b40 | 1503 | if (orig_request->flags.nocache && !hdr_in->has(HDR_PRAGMA)) |
ce2d6441 | 1504 | EBIT_SET(cc->mask, CC_NO_CACHE); |
1505 | ||
1506 | /* Enforce sibling relations */ | |
62e76326 | 1507 | if (flags.only_if_cached) |
1508 | EBIT_SET(cc->mask, CC_ONLY_IF_CACHED); | |
1509 | ||
a9925b40 | 1510 | hdr_out->putCc(cc); |
62e76326 | 1511 | |
1512 | httpHdrCcDestroy(cc); | |
6bf8443a | 1513 | } |
62e76326 | 1514 | |
99edd1c3 | 1515 | /* maybe append Connection: keep-alive */ |
b515fc11 | 1516 | if (flags.keepalive) { |
62e76326 | 1517 | if (flags.proxying) { |
a9925b40 | 1518 | hdr_out->putStr(HDR_PROXY_CONNECTION, "keep-alive"); |
62e76326 | 1519 | } else { |
a9925b40 | 1520 | hdr_out->putStr(HDR_CONNECTION, "keep-alive"); |
62e76326 | 1521 | } |
603a02fd | 1522 | } |
62e76326 | 1523 | |
a7ad6e4e | 1524 | /* append Front-End-Https */ |
1525 | if (flags.front_end_https) { | |
62e76326 | 1526 | if (flags.front_end_https == 1 || request->protocol == PROTO_HTTPS) |
a9925b40 | 1527 | hdr_out->putStr(HDR_FRONT_END_HTTPS, "On"); |
a7ad6e4e | 1528 | } |
1529 | ||
6bccf575 | 1530 | /* Now mangle the headers. */ |
4f56514c | 1531 | if (Config2.onoff.mangle_request_headers) |
5967c0bf | 1532 | httpHdrMangleList(hdr_out, request, ROR_REQUEST); |
62e76326 | 1533 | |
528b2c61 | 1534 | strConnection.clean(); |
99edd1c3 | 1535 | } |
1536 | ||
528b2c61 | 1537 | void |
190154cf | 1538 | copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, String strConnection, HttpRequest * request, HttpRequest * orig_request, HttpHeader * hdr_out, int we_do_ranges, http_state_flags flags) |
528b2c61 | 1539 | { |
1540 | debug(11, 5) ("httpBuildRequestHeader: %s: %s\n", | |
62e76326 | 1541 | e->name.buf(), e->value.buf()); |
1542 | ||
528b2c61 | 1543 | if (!httpRequestHdrAllowed(e, &strConnection)) { |
62e76326 | 1544 | debug(11, 2) ("'%s' header denied by anonymize_headers configuration\n",+ e->name.buf()); |
1545 | return; | |
528b2c61 | 1546 | } |
62e76326 | 1547 | |
528b2c61 | 1548 | switch (e->id) { |
62e76326 | 1549 | |
be753325 | 1550 | case HDR_PROXY_AUTHORIZATION: |
62e76326 | 1551 | /* Only pass on proxy authentication to peers for which |
1552 | * authentication forwarding is explicitly enabled | |
1553 | */ | |
1554 | ||
1555 | if (flags.proxying && orig_request->peer_login && | |
abb929f0 | 1556 | (strcmp(orig_request->peer_login, "PASS") == 0 || |
1557 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1558 | hdr_out->addEntry(e->clone()); |
62e76326 | 1559 | } |
1560 | ||
1561 | break; | |
1562 | ||
be753325 | 1563 | case HDR_AUTHORIZATION: |
62e76326 | 1564 | /* Pass on WWW authentication */ |
1565 | ||
1566 | if (!flags.originpeer) { | |
eede25e7 | 1567 | hdr_out->addEntry(e->clone()); |
62e76326 | 1568 | } else { |
1569 | /* In accelerators, only forward authentication if enabled | |
1570 | * (see also below for proxy->server authentication) | |
1571 | */ | |
1572 | ||
abb929f0 | 1573 | if (orig_request->peer_login && |
1574 | (strcmp(orig_request->peer_login, "PASS") == 0 || | |
1575 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1576 | hdr_out->addEntry(e->clone()); |
62e76326 | 1577 | } |
1578 | } | |
1579 | ||
1580 | break; | |
1581 | ||
be753325 | 1582 | case HDR_HOST: |
62e76326 | 1583 | /* |
b883b594 | 1584 | * Normally Squid rewrites the Host: header. |
1585 | * However, there is one case when we don't: If the URL | |
62e76326 | 1586 | * went through our redirector and the admin configured |
1587 | * 'redir_rewrites_host' to be off. | |
1588 | */ | |
1589 | ||
b883b594 | 1590 | if (request->flags.redirected && !Config.onoff.redir_rewrites_host) |
eede25e7 | 1591 | hdr_out->addEntry(e->clone()); |
b883b594 | 1592 | else { |
1593 | /* use port# only if not default */ | |
1594 | ||
1595 | if (orig_request->port == urlDefaultPort(orig_request->protocol)) { | |
a9925b40 | 1596 | hdr_out->putStr(HDR_HOST, orig_request->host); |
b883b594 | 1597 | } else { |
1598 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
1599 | orig_request->host, (int) orig_request->port); | |
1600 | } | |
1601 | } | |
62e76326 | 1602 | |
1603 | break; | |
1604 | ||
be753325 | 1605 | case HDR_IF_MODIFIED_SINCE: |
62e76326 | 1606 | /* append unless we added our own; |
1607 | * note: at most one client's ims header can pass through */ | |
b883b594 | 1608 | |
a9925b40 | 1609 | if (!hdr_out->has(HDR_IF_MODIFIED_SINCE)) |
eede25e7 | 1610 | hdr_out->addEntry(e->clone()); |
62e76326 | 1611 | |
1612 | break; | |
1613 | ||
be753325 | 1614 | case HDR_MAX_FORWARDS: |
62e76326 | 1615 | if (orig_request->method == METHOD_TRACE) { |
eede25e7 | 1616 | const int hops = e->getInt(); |
62e76326 | 1617 | |
1618 | if (hops > 0) | |
a9925b40 | 1619 | hdr_out->putInt(HDR_MAX_FORWARDS, hops - 1); |
62e76326 | 1620 | } |
1621 | ||
1622 | break; | |
1623 | ||
be753325 | 1624 | case HDR_VIA: |
62e76326 | 1625 | /* If Via is disabled then forward any received header as-is */ |
1626 | ||
1627 | if (!Config.onoff.via) | |
eede25e7 | 1628 | hdr_out->addEntry(e->clone()); |
62e76326 | 1629 | |
1630 | break; | |
1631 | ||
be753325 | 1632 | case HDR_RANGE: |
62e76326 | 1633 | |
be753325 | 1634 | case HDR_IF_RANGE: |
62e76326 | 1635 | |
be753325 | 1636 | case HDR_REQUEST_RANGE: |
62e76326 | 1637 | if (!we_do_ranges) |
eede25e7 | 1638 | hdr_out->addEntry(e->clone()); |
62e76326 | 1639 | |
1640 | break; | |
1641 | ||
be753325 | 1642 | case HDR_PROXY_CONNECTION: |
62e76326 | 1643 | |
be753325 | 1644 | case HDR_CONNECTION: |
62e76326 | 1645 | |
be753325 | 1646 | case HDR_X_FORWARDED_FOR: |
62e76326 | 1647 | |
be753325 | 1648 | case HDR_CACHE_CONTROL: |
62e76326 | 1649 | /* append these after the loop if needed */ |
1650 | break; | |
1651 | ||
be753325 | 1652 | case HDR_FRONT_END_HTTPS: |
62e76326 | 1653 | if (!flags.front_end_https) |
eede25e7 | 1654 | hdr_out->addEntry(e->clone()); |
62e76326 | 1655 | |
1656 | break; | |
1657 | ||
be753325 | 1658 | default: |
62e76326 | 1659 | /* pass on all other header fields */ |
eede25e7 | 1660 | hdr_out->addEntry(e->clone()); |
528b2c61 | 1661 | } |
1662 | } | |
1663 | ||
e5ee81f0 | 1664 | bool |
1665 | HttpStateData::decideIfWeDoRanges (HttpRequest * orig_request) | |
528b2c61 | 1666 | { |
e5ee81f0 | 1667 | bool result = true; |
62e76326 | 1668 | /* decide if we want to do Ranges ourselves |
1669 | * and fetch the whole object now) | |
1670 | * We want to handle Ranges ourselves iff | |
1671 | * - we can actually parse client Range specs | |
1672 | * - the specs are expected to be simple enough (e.g. no out-of-order ranges) | |
1673 | * - reply will be cachable | |
1674 | * (If the reply will be uncachable we have to throw it away after | |
1675 | * serving this request, so it is better to forward ranges to | |
1676 | * the server and fetch only the requested content) | |
1677 | */ | |
1678 | ||
1679 | if (NULL == orig_request->range || !orig_request->flags.cachable | |
1680 | || orig_request->range->offsetLimitExceeded()) | |
e5ee81f0 | 1681 | result = false; |
62e76326 | 1682 | |
1683 | debug(11, 8) ("decideIfWeDoRanges: range specs: %p, cachable: %d; we_do_ranges: %d\n", | |
1684 | orig_request->range, orig_request->flags.cachable, result); | |
1685 | ||
1686 | return result; | |
528b2c61 | 1687 | } |
1688 | ||
62e76326 | 1689 | /* build request prefix and append it to a given MemBuf; |
99edd1c3 | 1690 | * return the length of the prefix */ |
9bc73deb | 1691 | mb_size_t |
e5ee81f0 | 1692 | HttpStateData::buildRequestPrefix(HttpRequest * request, |
1693 | HttpRequest * orig_request, | |
1694 | StoreEntry * entry, | |
1695 | MemBuf * mb, | |
1696 | http_state_flags flags) | |
99edd1c3 | 1697 | { |
1698 | const int offset = mb->size; | |
450e0c10 | 1699 | HttpVersion httpver(1, 0); |
2fe7eff9 | 1700 | mb->Printf("%s %s HTTP/%d.%d\r\n", |
1701 | RequestMethodStr[request->method], | |
1702 | request->urlpath.size() ? request->urlpath.buf() : "/", | |
1703 | httpver.major,httpver.minor); | |
99edd1c3 | 1704 | /* build and pack headers */ |
1705 | { | |
75faaa7a | 1706 | HttpHeader hdr(hoRequest); |
62e76326 | 1707 | Packer p; |
1708 | httpBuildRequestHeader(request, orig_request, entry, &hdr, flags); | |
1709 | packerToMemInit(&p, mb); | |
a9925b40 | 1710 | hdr.packInto(&p); |
519e0948 | 1711 | hdr.clean(); |
62e76326 | 1712 | packerClean(&p); |
9d9d144b | 1713 | } |
99edd1c3 | 1714 | /* append header terminator */ |
2fe7eff9 | 1715 | mb->append(crlf, 2); |
99edd1c3 | 1716 | return mb->size - offset; |
6bf8443a | 1717 | } |
62e76326 | 1718 | |
090089c4 | 1719 | /* This will be called when connect completes. Write request. */ |
2bb867b5 | 1720 | void |
1721 | HttpStateData::sendRequest() | |
090089c4 | 1722 | { |
99edd1c3 | 1723 | MemBuf mb; |
901e234d | 1724 | CWCB *sendHeaderDone; |
090089c4 | 1725 | |
2bb867b5 | 1726 | debug(11, 5) ("httpSendRequest: FD %d: this %p.\n", fd, this); |
090089c4 | 1727 | |
2bb867b5 | 1728 | commSetTimeout(fd, Config.Timeout.lifetime, httpTimeout, this); |
1729 | flags.do_next_read = 1; | |
1730 | maybeReadData(); | |
21b92762 | 1731 | |
3b299123 | 1732 | debugs(32,3,HERE<< "request " << request << " body_reader = " << orig_request->body_reader.getRaw()); |
1733 | ||
1734 | if (orig_request->body_reader != NULL) | |
2bb867b5 | 1735 | sendHeaderDone = HttpStateData::SendRequestEntityWrapper; |
7db8b16d | 1736 | else |
62e76326 | 1737 | sendHeaderDone = HttpStateData::SendComplete; |
54220df8 | 1738 | |
2bb867b5 | 1739 | if (_peer != NULL) { |
1740 | if (_peer->options.originserver) { | |
1741 | flags.proxying = 0; | |
1742 | flags.originpeer = 1; | |
62e76326 | 1743 | } else { |
2bb867b5 | 1744 | flags.proxying = 1; |
1745 | flags.originpeer = 0; | |
62e76326 | 1746 | } |
be753325 | 1747 | } else { |
2bb867b5 | 1748 | flags.proxying = 0; |
1749 | flags.originpeer = 0; | |
be753325 | 1750 | } |
62e76326 | 1751 | |
efb9218c | 1752 | /* |
99edd1c3 | 1753 | * Is keep-alive okay for all request methods? |
efb9218c | 1754 | */ |
efd900cb | 1755 | if (!Config.onoff.server_pconns) |
2bb867b5 | 1756 | flags.keepalive = 0; |
1757 | else if (_peer == NULL) | |
1758 | flags.keepalive = 1; | |
1759 | else if (_peer->stats.n_keepalives_sent < 10) | |
1760 | flags.keepalive = 1; | |
1761 | else if ((double) _peer->stats.n_keepalives_recv / | |
1762 | (double) _peer->stats.n_keepalives_sent > 0.50) | |
1763 | flags.keepalive = 1; | |
1764 | ||
1765 | if (_peer) { | |
1766 | if (neighborType(_peer, request) == PEER_SIBLING && | |
1767 | !_peer->options.allow_miss) | |
1768 | flags.only_if_cached = 1; | |
1769 | ||
1770 | flags.front_end_https = _peer->front_end_https; | |
a7ad6e4e | 1771 | } |
62e76326 | 1772 | |
2fe7eff9 | 1773 | mb.init(); |
e5ee81f0 | 1774 | buildRequestPrefix(request, orig_request, entry, &mb, flags); |
21b92762 | 1775 | debug(11, 6) ("httpSendRequest: FD %d:\n%s\n", fd, mb.buf); |
2bb867b5 | 1776 | comm_old_write_mbuf(fd, &mb, sendHeaderDone, this); |
090089c4 | 1777 | } |
b6a2f15e | 1778 | |
910169e5 | 1779 | void |
b6b6f466 | 1780 | httpStart(FwdState *fwd) |
603a02fd | 1781 | { |
910169e5 | 1782 | debug(11, 3) ("httpStart: \"%s %s\"\n", |
a3d50c30 | 1783 | RequestMethodStr[fwd->request->method], |
62e76326 | 1784 | storeUrl(fwd->entry)); |
a3d50c30 | 1785 | HttpStateData *httpState = new HttpStateData(fwd); |
62e76326 | 1786 | |
83704487 | 1787 | statCounter.server.all.requests++; |
62e76326 | 1788 | |
83704487 | 1789 | statCounter.server.http.requests++; |
62e76326 | 1790 | |
2bb867b5 | 1791 | httpState->sendRequest(); |
62e76326 | 1792 | |
b6a2f15e | 1793 | /* |
1794 | * We used to set the read timeout here, but not any more. | |
1795 | * Now its set in httpSendComplete() after the full request, | |
1796 | * including request body, has been written to the server. | |
1797 | */ | |
090089c4 | 1798 | } |
1799 | ||
2bb867b5 | 1800 | void |
ea0cf66e | 1801 | HttpStateData::sendRequestEntityDone() |
2bb867b5 | 1802 | { |
4fb35c3c | 1803 | ACLChecklist ch; |
43ae1d95 | 1804 | debug(11, 5) ("httpSendRequestEntityDone: FD %d\n", fd); |
6dd9f4bd | 1805 | ch.request = HTTPMSGLOCK(request); |
506768d9 | 1806 | |
1807 | if (Config.accessList.brokenPosts) | |
1808 | ch.accessList = cbdataReference(Config.accessList.brokenPosts); | |
62e76326 | 1809 | |
108d65b2 | 1810 | /* cbdataReferenceDone() happens in either fastCheck() or ~ACLCheckList */ |
1811 | ||
94439e4e | 1812 | if (!Config.accessList.brokenPosts) { |
62e76326 | 1813 | debug(11, 5) ("httpSendRequestEntityDone: No brokenPosts list\n"); |
2bb867b5 | 1814 | HttpStateData::SendComplete(fd, NULL, 0, COMM_OK, this); |
b448c119 | 1815 | } else if (!ch.fastCheck()) { |
62e76326 | 1816 | debug(11, 5) ("httpSendRequestEntityDone: didn't match brokenPosts\n"); |
2bb867b5 | 1817 | HttpStateData::SendComplete(fd, NULL, 0, COMM_OK, this); |
94439e4e | 1818 | } else { |
62e76326 | 1819 | debug(11, 2) ("httpSendRequestEntityDone: matched brokenPosts\n"); |
2bb867b5 | 1820 | comm_old_write(fd, "\r\n", 2, HttpStateData::SendComplete, this, NULL); |
54220df8 | 1821 | } |
94439e4e | 1822 | } |
1823 | ||
3b299123 | 1824 | /* |
1825 | * RequestBodyHandlerWrapper | |
1826 | * | |
1827 | * BodyReader calls this when it has some body data for us. | |
1828 | * It is of type CBCB. | |
1829 | */ | |
2bb867b5 | 1830 | void |
3b299123 | 1831 | HttpStateData::RequestBodyHandlerWrapper(MemBuf &mb, void *data) |
94439e4e | 1832 | { |
9ed57c61 | 1833 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
3b299123 | 1834 | httpState->requestBodyHandler(mb); |
2bb867b5 | 1835 | } |
1836 | ||
1837 | void | |
3b299123 | 1838 | HttpStateData::requestBodyHandler(MemBuf &mb) |
2bb867b5 | 1839 | { |
2bb867b5 | 1840 | if (eof || fd < 0) { |
1841 | debugs(11, 1, HERE << "Transaction aborted while reading HTTP body"); | |
2bb867b5 | 1842 | return; |
1843 | } | |
62e76326 | 1844 | |
3b299123 | 1845 | if (mb.contentSize() > 0) { |
2bb867b5 | 1846 | if (flags.headers_parsed && !flags.abuse_detected) { |
1847 | flags.abuse_detected = 1; | |
21b92762 | 1848 | debug(11, 1) ("httpSendRequestEntryDone: Likely proxy abuse detected '%s' -> '%s'\n", |
2bb867b5 | 1849 | inet_ntoa(orig_request->client_addr), |
1850 | storeUrl(entry)); | |
21b92762 | 1851 | |
2bb867b5 | 1852 | if (getReply()->sline.status == HTTP_INVALID_HEADER) { |
2bb867b5 | 1853 | comm_close(fd); |
21b92762 | 1854 | return; |
1855 | } | |
1856 | } | |
1857 | ||
3b299123 | 1858 | /* |
1859 | * mb's content will be consumed in the SendRequestEntityWrapper | |
1860 | * callback after comm_write is done. | |
1861 | */ | |
1862 | flags.consume_body_data = 1; | |
1863 | ||
1864 | comm_old_write(fd, mb.content(), mb.contentSize(), SendRequestEntityWrapper, this, NULL); | |
1865 | } else if (orig_request->body_reader == NULL) { | |
1866 | /* Failed to get whole body, probably aborted */ | |
1867 | SendComplete(fd, NULL, 0, COMM_ERR_CLOSING, this); | |
1868 | } else if (orig_request->body_reader->remaining() == 0) { | |
62e76326 | 1869 | /* End of body */ |
ea0cf66e | 1870 | sendRequestEntityDone(); |
94439e4e | 1871 | } else { |
62e76326 | 1872 | /* Failed to get whole body, probably aborted */ |
3b299123 | 1873 | SendComplete(fd, NULL, 0, COMM_ERR_CLOSING, this); |
b6a2f15e | 1874 | } |
376bb137 | 1875 | } |
1876 | ||
2bb867b5 | 1877 | void |
1878 | HttpStateData::SendRequestEntityWrapper(int fd, char *bufnotused, size_t size, comm_err_t errflag, void *data) | |
376bb137 | 1879 | { |
e6ccf245 | 1880 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
2bb867b5 | 1881 | httpState->sendRequestEntity(fd, size, errflag); |
1882 | } | |
1883 | ||
1884 | void | |
1885 | HttpStateData::sendRequestEntity(int fd, size_t size, comm_err_t errflag) | |
1886 | { | |
c3d63b2a | 1887 | debug(11, 5) ("httpSendRequestEntity: FD %d: size %d: errflag %d.\n", |
62e76326 | 1888 | fd, (int) size, errflag); |
3b299123 | 1889 | debugs(32,3,HERE << "httpSendRequestEntity called"); |
da39112a | 1890 | |
1891 | /* | |
1892 | * This used to be an assertion for body_reader != NULL. | |
1893 | * Currently there are cases where body_reader may become NULL | |
1894 | * before reaching this point in the code. This can happen | |
1895 | * because body_reader is attached to HttpRequest and other | |
1896 | * modules (client_side, ICAP) have access to HttpRequest->body | |
1897 | * reader. An aborted transaction may cause body_reader to | |
1898 | * become NULL between the time sendRequestEntity was registered | |
1899 | * and actually called. For now we'll abort the whole transaction, | |
1900 | * but this should be fixed so that the client/icap/server sides | |
1901 | * are cleaned up independently. | |
1902 | */ | |
1903 | ||
1904 | if (orig_request->body_reader == NULL) { | |
1905 | debugs(32,1,HERE << "sendRequestEntity body_reader became NULL, aborting transaction"); | |
1906 | comm_close(fd); | |
1907 | return; | |
1908 | } | |
62e76326 | 1909 | |
376bb137 | 1910 | if (size > 0) { |
62e76326 | 1911 | fd_bytes(fd, size, FD_WRITE); |
1912 | kb_incr(&statCounter.server.all.kbytes_out, size); | |
1913 | kb_incr(&statCounter.server.http.kbytes_out, size); | |
3b299123 | 1914 | |
1915 | if (flags.consume_body_data) { | |
1916 | orig_request->body_reader->consume(size); | |
1917 | orig_request->body_reader->bytes_read += size; | |
1918 | debugs(32,3," HTTP server body bytes_read=" << orig_request->body_reader->bytes_read); | |
1919 | } | |
376bb137 | 1920 | } |
62e76326 | 1921 | |
376bb137 | 1922 | if (errflag == COMM_ERR_CLOSING) |
62e76326 | 1923 | return; |
1924 | ||
376bb137 | 1925 | if (errflag) { |
6cae5db1 | 1926 | ErrorState *err; |
4eb368f9 | 1927 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY); |
62e76326 | 1928 | err->xerrno = errno; |
2bb867b5 | 1929 | fwd->fail(err); |
62e76326 | 1930 | comm_close(fd); |
1931 | return; | |
376bb137 | 1932 | } |
62e76326 | 1933 | |
94439e4e | 1934 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1935 | comm_close(fd); |
1936 | return; | |
376bb137 | 1937 | } |
62e76326 | 1938 | |
3b299123 | 1939 | size_t r = orig_request->body_reader->remaining(); |
1940 | debugs(32,3,HERE << "body remaining = " << r); | |
1941 | ||
1942 | if (r) { | |
1943 | debugs(32,3,HERE << "reading more body data"); | |
1944 | orig_request->body_reader->read(RequestBodyHandlerWrapper, this); | |
1945 | } else { | |
1946 | debugs(32,3,HERE << "done reading body data"); | |
1947 | sendRequestEntityDone(); | |
1948 | } | |
54220df8 | 1949 | } |
ccf44862 | 1950 | |
1951 | void | |
450e0c10 | 1952 | httpBuildVersion(HttpVersion * version, unsigned int major, unsigned int minor) |
110eb4e5 | 1953 | { |
1954 | version->major = major; | |
1955 | version->minor = minor; | |
ccf44862 | 1956 | } |
2afaba07 | 1957 | |
1958 | #if ICAP_CLIENT | |
1959 | ||
1960 | static void | |
1961 | icapAclCheckDoneWrapper(ICAPServiceRep::Pointer service, void *data) | |
1962 | { | |
1963 | HttpStateData *http = (HttpStateData *)data; | |
1964 | http->icapAclCheckDone(service); | |
1965 | } | |
1966 | ||
1967 | void | |
1968 | HttpStateData::icapAclCheckDone(ICAPServiceRep::Pointer service) | |
1969 | { | |
1970 | icapAccessCheckPending = false; | |
1971 | ||
1972 | if (service == NULL) { | |
1973 | // handle case where no service is selected; | |
db237875 | 1974 | entry->replaceHttpReply(reply); |
2afaba07 | 1975 | |
2afaba07 | 1976 | haveParsedReplyHeaders(); |
1977 | processReplyBody(); | |
1978 | ||
1979 | if (eof == 1) | |
1980 | transactionComplete(); | |
1981 | ||
1982 | return; | |
1983 | } | |
1984 | ||
1985 | if (doIcap(service) < 0) { | |
1986 | /* | |
1987 | * XXX Maybe instead of an error page we should | |
1988 | * handle the reply normally (without ICAP). | |
1989 | */ | |
1990 | ErrorState *err = errorCon(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR); | |
1991 | err->xerrno = errno; | |
6dd9f4bd | 1992 | err->request = HTTPMSGLOCK(orig_request); |
2afaba07 | 1993 | errorAppendEntry(entry, err); |
1994 | comm_close(fd); | |
1995 | return; | |
1996 | } | |
1997 | ||
132c60e0 | 1998 | icap->startRespMod(this, orig_request, reply); |
2afaba07 | 1999 | processReplyBody(); |
2000 | } | |
2001 | ||
2afaba07 | 2002 | /* |
2003 | * Called by ICAPClientRespmodPrecache when it has space available for us. | |
2004 | */ | |
2005 | void | |
2006 | HttpStateData::icapSpaceAvailable() | |
2007 | { | |
2008 | debug(11,5)("HttpStateData::icapSpaceAvailable() called\n"); | |
2009 | maybeReadData(); | |
2010 | } | |
2011 | ||
2012 | void | |
2013 | HttpStateData::takeAdaptedHeaders(HttpReply *rep) | |
2014 | { | |
2015 | debug(11,5)("HttpStateData::takeAdaptedHeaders() called\n"); | |
2016 | ||
2017 | if (!entry->isAccepting()) { | |
2018 | debug(11,5)("\toops, entry is not Accepting!\n"); | |
2019 | icap->ownerAbort(); | |
2020 | return; | |
2021 | } | |
2022 | ||
b559db5d | 2023 | assert (rep); |
db237875 | 2024 | entry->replaceHttpReply(rep); |
6dd9f4bd | 2025 | HTTPMSGUNLOCK(reply); |
4a56ee8d | 2026 | |
6dd9f4bd | 2027 | reply = HTTPMSGLOCK(rep); |
2afaba07 | 2028 | |
2029 | haveParsedReplyHeaders(); | |
2030 | ||
2031 | debug(11,5)("HttpStateData::takeAdaptedHeaders() finished\n"); | |
2032 | } | |
2033 | ||
2034 | void | |
2035 | HttpStateData::takeAdaptedBody(MemBuf *buf) | |
2036 | { | |
2037 | debug(11,5)("HttpStateData::takeAdaptedBody() called\n"); | |
1dd6edf2 | 2038 | debug(11,5)("\t%d bytes\n", (int) buf->contentSize()); |
2afaba07 | 2039 | debug(11,5)("\t%d is current offset\n", (int)currentOffset); |
2040 | ||
2041 | if (!entry->isAccepting()) { | |
2042 | debug(11,5)("\toops, entry is not Accepting!\n"); | |
2043 | icap->ownerAbort(); | |
2044 | return; | |
2045 | } | |
2046 | ||
2047 | entry->write(StoreIOBuffer(buf, currentOffset)); // write everything | |
2048 | currentOffset += buf->contentSize(); | |
2049 | buf->consume(buf->contentSize()); // consume everything written | |
2050 | } | |
2051 | ||
2052 | void | |
2053 | HttpStateData::doneAdapting() | |
2054 | { | |
2055 | debug(11,5)("HttpStateData::doneAdapting() called\n"); | |
2056 | ||
2057 | if (!entry->isAccepting()) { | |
2058 | debug(11,5)("\toops, entry is not Accepting!\n"); | |
2059 | icap->ownerAbort(); | |
2060 | } else { | |
b6b6f466 | 2061 | fwd->complete(); |
2afaba07 | 2062 | } |
2063 | ||
6965ab28 | 2064 | /* |
2065 | * ICAP is done, so we don't need this any more. | |
2066 | */ | |
2067 | delete icap; | |
2068 | ||
2069 | cbdataReferenceDone(icap); | |
2070 | ||
b559db5d | 2071 | if (fd >= 0) |
2072 | comm_close(fd); | |
2073 | else | |
2074 | httpStateFree(fd, this); | |
2afaba07 | 2075 | } |
2076 | ||
2077 | void | |
2078 | HttpStateData::abortAdapting() | |
2079 | { | |
2080 | debug(11,5)("HttpStateData::abortAdapting() called\n"); | |
2081 | ||
b559db5d | 2082 | /* |
2083 | * ICAP has given up, we're done with it too | |
2084 | */ | |
2085 | delete icap; | |
2086 | cbdataReferenceDone(icap); | |
2087 | ||
2afaba07 | 2088 | if (entry->isEmpty()) { |
2089 | ErrorState *err; | |
2090 | err = errorCon(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR); | |
6dd9f4bd | 2091 | err->request = HTTPMSGLOCK((HttpRequest *) request); |
2afaba07 | 2092 | err->xerrno = errno; |
b6b6f466 | 2093 | fwd->fail( err); |
2094 | fwd->dontRetry(true); | |
2afaba07 | 2095 | flags.do_next_read = 0; |
2096 | } | |
2097 | ||
6c2d6c93 | 2098 | if (fd >= 0) { |
2099 | comm_close(fd); | |
2100 | } else { | |
2101 | httpStateFree(-1, this); // deletes this | |
2102 | } | |
2afaba07 | 2103 | } |
2104 | ||
2105 | #endif |