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da2b3a17 | 1 | |
30a4f2a8 | 2 | /* |
5cafad19 | 3 | * $Id: http.cc,v 1.482 2006/01/19 18:40:28 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" | |
4fb35c3c | 50 | #include "ACLChecklist.h" |
21b92762 | 51 | #include "fde.h" |
b67e2c8c | 52 | #if DELAY_POOLS |
53 | #include "DelayPools.h" | |
54 | #endif | |
2afaba07 | 55 | #if ICAP_CLIENT |
56 | #include "ICAP/ICAPClientRespmodPrecache.h" | |
57 | #include "ICAP/ICAPConfig.h" | |
ab7ac359 | 58 | extern ICAPConfig TheICAPConfig; |
2afaba07 | 59 | #endif |
e6ccf245 | 60 | |
2afaba07 | 61 | CBDATA_CLASS_INIT(HttpStateData); |
090089c4 | 62 | |
6bf8443a | 63 | static const char *const crlf = "\r\n"; |
4db43fab | 64 | |
9e4ad609 | 65 | static PF httpStateFree; |
66 | static PF httpTimeout; | |
f5b8bbc4 | 67 | static void httpCacheNegatively(StoreEntry *); |
68 | static void httpMakePrivate(StoreEntry *); | |
69 | static void httpMakePublic(StoreEntry *); | |
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 | |
a3d50c30 | 77 | HttpStateData::HttpStateData(FwdState *theFwdState) |
2bb867b5 | 78 | { |
79 | debugs(11,5,HERE << "HttpStateData " << this << " created"); | |
a3d50c30 | 80 | ignoreCacheControl = false; |
81 | surrogateNoStore = false; | |
82 | fwd = theFwdState; | |
83 | entry = fwd->entry; | |
84 | storeLockObject(entry); | |
85 | fd = fwd->server_fd; | |
86 | readBuf = new MemBuf; | |
87 | readBuf->init(4096, SQUID_TCP_SO_RCVBUF); | |
88 | orig_request = requestLink(fwd->request); | |
89 | ||
90 | if (fwd->servers) | |
91 | _peer = fwd->servers->_peer; /* might be NULL */ | |
92 | ||
93 | if (_peer) { | |
94 | const char *url; | |
95 | ||
96 | if (_peer->options.originserver) | |
97 | url = orig_request->urlpath.buf(); | |
98 | else | |
99 | url = storeUrl(entry); | |
100 | ||
5cafad19 | 101 | HttpRequest * proxy_req = new HttpRequest(orig_request->method, |
102 | orig_request->protocol, url); | |
a3d50c30 | 103 | |
104 | xstrncpy(proxy_req->host, _peer->host, SQUIDHOSTNAMELEN); | |
105 | ||
106 | proxy_req->port = _peer->http_port; | |
107 | ||
108 | proxy_req->flags = orig_request->flags; | |
109 | ||
110 | proxy_req->lastmod = orig_request->lastmod; | |
111 | ||
112 | proxy_req->flags.proxying = 1; | |
113 | ||
114 | request = requestLink(proxy_req); | |
115 | ||
116 | /* | |
117 | * This NEIGHBOR_PROXY_ONLY check probably shouldn't be here. | |
118 | * We might end up getting the object from somewhere else if, | |
119 | * for example, the request to this neighbor fails. | |
120 | */ | |
121 | if (_peer->options.proxy_only) | |
122 | storeReleaseRequest(entry); | |
123 | ||
124 | #if DELAY_POOLS | |
125 | ||
126 | entry->setNoDelay(_peer->options.no_delay); | |
127 | ||
128 | #endif | |
129 | ||
130 | } else { | |
131 | request = requestLink(orig_request); | |
132 | } | |
133 | ||
134 | /* | |
135 | * register the handler to free HTTP state data when the FD closes | |
136 | */ | |
137 | comm_add_close_handler(fd, httpStateFree, this); | |
2bb867b5 | 138 | } |
b8d8561b | 139 | |
2afaba07 | 140 | HttpStateData::~HttpStateData() |
f5558c95 | 141 | { |
2afaba07 | 142 | if (request_body_buf) { |
143 | if (orig_request->body_connection.getRaw()) { | |
144 | clientAbortBody(orig_request); | |
9ea12fca | 145 | } |
21b92762 | 146 | |
2afaba07 | 147 | if (request_body_buf) { |
148 | memFree(request_body_buf, MEM_8K_BUF); | |
149 | request_body_buf = NULL; | |
21b92762 | 150 | } |
151 | } | |
152 | ||
2afaba07 | 153 | storeUnlockObject(entry); |
154 | ||
155 | if (!readBuf->isNull()) | |
156 | readBuf->clean(); | |
62e76326 | 157 | |
2afaba07 | 158 | delete readBuf; |
159 | ||
160 | requestUnlink(request); | |
161 | ||
162 | requestUnlink(orig_request); | |
163 | ||
164 | request = NULL; | |
165 | ||
166 | orig_request = NULL; | |
167 | ||
b6b6f466 | 168 | fwd = NULL; // refcounted |
169 | ||
2afaba07 | 170 | if (reply) |
171 | delete reply; | |
172 | ||
173 | #if ICAP_CLIENT | |
174 | ||
175 | if (icap) { | |
176 | delete icap; | |
177 | cbdataReferenceDone(icap); | |
0d4d4170 | 178 | } |
62e76326 | 179 | |
2afaba07 | 180 | #endif |
2bb867b5 | 181 | debugs(11,5,HERE << "HttpStateData " << this << " destroyed"); |
2afaba07 | 182 | } |
183 | ||
184 | static void | |
185 | httpStateFree(int fd, void *data) | |
186 | { | |
187 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
188 | debug(11,5)("httpStateFree: FD %d, httpState=%p\n", fd, data); | |
189 | ||
190 | if (httpState) | |
191 | delete httpState; | |
f5558c95 | 192 | } |
193 | ||
b8d8561b | 194 | int |
75e88d56 | 195 | httpCachable(method_t method) |
090089c4 | 196 | { |
090089c4 | 197 | /* GET and HEAD are cachable. Others are not. */ |
62e76326 | 198 | |
6eb42cae | 199 | if (method != METHOD_GET && method != METHOD_HEAD) |
62e76326 | 200 | return 0; |
201 | ||
090089c4 | 202 | /* else cachable */ |
203 | return 1; | |
204 | } | |
205 | ||
b8d8561b | 206 | static void |
5c5783a2 | 207 | httpTimeout(int fd, void *data) |
090089c4 | 208 | { |
e6ccf245 | 209 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
593c9a75 | 210 | StoreEntry *entry = httpState->entry; |
9fb13bb6 | 211 | debug(11, 4) ("httpTimeout: FD %d: '%s'\n", fd, storeUrl(entry)); |
62e76326 | 212 | |
12158bdc | 213 | if (entry->store_status == STORE_PENDING) { |
b6b6f466 | 214 | httpState->fwd->fail(errorCon(ERR_READ_TIMEOUT, HTTP_GATEWAY_TIMEOUT)); |
9b312a19 | 215 | } |
62e76326 | 216 | |
0d4d4170 | 217 | comm_close(fd); |
090089c4 | 218 | } |
219 | ||
30a4f2a8 | 220 | /* This object can be cached for a long time */ |
b8d8561b | 221 | static void |
222 | httpMakePublic(StoreEntry * entry) | |
30a4f2a8 | 223 | { |
d46a87a8 | 224 | if (EBIT_TEST(entry->flags, ENTRY_CACHABLE)) |
62e76326 | 225 | storeSetPublicKey(entry); |
30a4f2a8 | 226 | } |
227 | ||
228 | /* This object should never be cached at all */ | |
b8d8561b | 229 | static void |
230 | httpMakePrivate(StoreEntry * entry) | |
30a4f2a8 | 231 | { |
30a4f2a8 | 232 | storeExpireNow(entry); |
30a4f2a8 | 233 | storeReleaseRequest(entry); /* delete object when not used */ |
f3e570e9 | 234 | /* storeReleaseRequest clears ENTRY_CACHABLE flag */ |
30a4f2a8 | 235 | } |
236 | ||
237 | /* This object may be negatively cached */ | |
b8d8561b | 238 | static void |
239 | httpCacheNegatively(StoreEntry * entry) | |
30a4f2a8 | 240 | { |
79b5cc5f | 241 | storeNegativeCache(entry); |
62e76326 | 242 | |
d46a87a8 | 243 | if (EBIT_TEST(entry->flags, ENTRY_CACHABLE)) |
62e76326 | 244 | storeSetPublicKey(entry); |
30a4f2a8 | 245 | } |
246 | ||
f9cece6e | 247 | static void |
248 | httpMaybeRemovePublic(StoreEntry * e, http_status status) | |
249 | { | |
62e76326 | 250 | |
251 | int remove | |
252 | = 0; | |
253 | ||
7e3ce7b9 | 254 | int forbidden = 0; |
62e76326 | 255 | |
f9cece6e | 256 | StoreEntry *pe; |
62e76326 | 257 | |
d46a87a8 | 258 | if (!EBIT_TEST(e->flags, KEY_PRIVATE)) |
62e76326 | 259 | return; |
260 | ||
f9cece6e | 261 | switch (status) { |
62e76326 | 262 | |
f9cece6e | 263 | case HTTP_OK: |
62e76326 | 264 | |
f9cece6e | 265 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 266 | |
f9cece6e | 267 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 268 | |
f9cece6e | 269 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 270 | |
f9cece6e | 271 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 272 | |
f9cece6e | 273 | case HTTP_GONE: |
62e76326 | 274 | |
7e3ce7b9 | 275 | case HTTP_NOT_FOUND: |
62e76326 | 276 | |
277 | remove | |
278 | = 1; | |
279 | ||
280 | break; | |
281 | ||
7e3ce7b9 | 282 | case HTTP_FORBIDDEN: |
62e76326 | 283 | |
7e3ce7b9 | 284 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 285 | forbidden = 1; |
286 | ||
287 | break; | |
288 | ||
f9cece6e | 289 | #if WORK_IN_PROGRESS |
62e76326 | 290 | |
c8fd0193 | 291 | case HTTP_UNAUTHORIZED: |
62e76326 | 292 | forbidden = 1; |
293 | ||
294 | break; | |
295 | ||
f9cece6e | 296 | #endif |
62e76326 | 297 | |
f9cece6e | 298 | default: |
7e3ce7b9 | 299 | #if QUESTIONABLE |
62e76326 | 300 | /* |
301 | * Any 2xx response should eject previously cached entities... | |
302 | */ | |
abb929f0 | 303 | |
62e76326 | 304 | if (status >= 200 && status < 300) |
305 | remove | |
306 | = 1; | |
307 | ||
7e3ce7b9 | 308 | #endif |
62e76326 | 309 | |
310 | break; | |
f9cece6e | 311 | } |
62e76326 | 312 | |
313 | if (!remove | |
314 | && !forbidden) | |
315 | return; | |
316 | ||
f9cece6e | 317 | assert(e->mem_obj); |
62e76326 | 318 | |
f66a9ef4 | 319 | if (e->mem_obj->request) |
62e76326 | 320 | pe = storeGetPublicByRequest(e->mem_obj->request); |
f66a9ef4 | 321 | else |
62e76326 | 322 | pe = storeGetPublic(e->mem_obj->url, e->mem_obj->method); |
323 | ||
f66a9ef4 | 324 | if (pe != NULL) { |
62e76326 | 325 | assert(e != pe); |
326 | storeRelease(pe); | |
0856d155 | 327 | } |
62e76326 | 328 | |
7e3ce7b9 | 329 | /* |
330 | * Also remove any cached HEAD response in case the object has | |
331 | * changed. | |
332 | */ | |
f66a9ef4 | 333 | if (e->mem_obj->request) |
62e76326 | 334 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_HEAD); |
f66a9ef4 | 335 | else |
62e76326 | 336 | pe = storeGetPublic(e->mem_obj->url, METHOD_HEAD); |
337 | ||
f66a9ef4 | 338 | if (pe != NULL) { |
62e76326 | 339 | assert(e != pe); |
340 | storeRelease(pe); | |
7e3ce7b9 | 341 | } |
62e76326 | 342 | |
7e3ce7b9 | 343 | if (forbidden) |
62e76326 | 344 | return; |
345 | ||
7e3ce7b9 | 346 | switch (e->mem_obj->method) { |
62e76326 | 347 | |
7e3ce7b9 | 348 | case METHOD_PUT: |
62e76326 | 349 | |
7e3ce7b9 | 350 | case METHOD_DELETE: |
62e76326 | 351 | |
7e3ce7b9 | 352 | case METHOD_PROPPATCH: |
62e76326 | 353 | |
7e3ce7b9 | 354 | case METHOD_MKCOL: |
62e76326 | 355 | |
7e3ce7b9 | 356 | case METHOD_MOVE: |
62e76326 | 357 | |
42b51993 | 358 | case METHOD_BMOVE: |
62e76326 | 359 | |
42b51993 | 360 | case METHOD_BDELETE: |
62e76326 | 361 | /* |
362 | * Remove any cached GET object if it is beleived that the | |
363 | * object may have changed as a result of other methods | |
364 | */ | |
365 | ||
366 | if (e->mem_obj->request) | |
367 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_GET); | |
368 | else | |
369 | pe = storeGetPublic(e->mem_obj->url, METHOD_GET); | |
370 | ||
371 | if (pe != NULL) { | |
372 | assert(e != pe); | |
373 | storeRelease(pe); | |
374 | } | |
375 | ||
376 | break; | |
377 | ||
c8be6d7b | 378 | default: |
62e76326 | 379 | /* Keep GCC happy. The methods above are all mutating HTTP methods |
380 | */ | |
381 | break; | |
0856d155 | 382 | } |
f9cece6e | 383 | } |
384 | ||
43ae1d95 | 385 | void |
386 | HttpStateData::processSurrogateControl(HttpReply *reply) | |
387 | { | |
388 | #if ESI | |
389 | ||
390 | if (request->flags.accelerated && reply->surrogate_control) { | |
391 | HttpHdrScTarget *sctusable = | |
392 | httpHdrScGetMergedTarget(reply->surrogate_control, | |
393 | Config.Accel.surrogate_id); | |
394 | ||
395 | if (sctusable) { | |
396 | if (EBIT_TEST(sctusable->mask, SC_NO_STORE) || | |
397 | (Config.onoff.surrogate_is_remote | |
398 | && EBIT_TEST(sctusable->mask, SC_NO_STORE_REMOTE))) { | |
399 | surrogateNoStore = true; | |
400 | httpMakePrivate(entry); | |
401 | } | |
402 | ||
403 | /* The HttpHeader logic cannot tell if the header it's parsing is a reply to an | |
404 | * accelerated request or not... | |
405 | * Still, this is an abtraction breach. - RC | |
406 | */ | |
407 | if (sctusable->max_age != -1) { | |
408 | if (sctusable->max_age < sctusable->max_stale) | |
409 | reply->expires = reply->date + sctusable->max_age; | |
410 | else | |
411 | reply->expires = reply->date + sctusable->max_stale; | |
412 | ||
413 | /* And update the timestamps */ | |
414 | storeTimestampsSet(entry); | |
415 | } | |
416 | ||
417 | /* We ignore cache-control directives as per the Surrogate specification */ | |
418 | ignoreCacheControl = true; | |
419 | ||
420 | httpHdrScTargetDestroy(sctusable); | |
421 | } | |
422 | } | |
423 | ||
424 | #endif | |
425 | } | |
426 | ||
924f73bc | 427 | int |
428 | HttpStateData::cacheableReply() | |
c54e9052 | 429 | { |
2afaba07 | 430 | HttpReply const *rep = getReply(); |
528b2c61 | 431 | HttpHeader const *hdr = &rep->header; |
d8b249ef | 432 | const int cc_mask = (rep->cache_control) ? rep->cache_control->mask : 0; |
c68e9c6b | 433 | const char *v; |
38f9c547 | 434 | #if HTTP_VIOLATIONS |
62e76326 | 435 | |
38f9c547 | 436 | const refresh_t *R = NULL; |
437 | #endif | |
43ae1d95 | 438 | |
38f9c547 | 439 | if (surrogateNoStore) |
62e76326 | 440 | return 0; |
441 | ||
924f73bc | 442 | if (!ignoreCacheControl) { |
38f9c547 | 443 | if (EBIT_TEST(cc_mask, CC_PRIVATE)) { |
444 | #if HTTP_VIOLATIONS | |
43ae1d95 | 445 | |
38f9c547 | 446 | if (!R) |
447 | R = refreshLimits(entry->mem_obj->url); | |
43ae1d95 | 448 | |
38f9c547 | 449 | if (R && !R->flags.ignore_private) |
450 | #endif | |
451 | ||
452 | return 0; | |
453 | } | |
454 | ||
455 | if (EBIT_TEST(cc_mask, CC_NO_CACHE)) { | |
456 | #if HTTP_VIOLATIONS | |
457 | ||
458 | if (!R) | |
459 | R = refreshLimits(entry->mem_obj->url); | |
460 | ||
461 | if (R && !R->flags.ignore_no_cache) | |
462 | #endif | |
463 | ||
464 | return 0; | |
465 | } | |
466 | ||
467 | if (EBIT_TEST(cc_mask, CC_NO_STORE)) { | |
468 | #if HTTP_VIOLATIONS | |
469 | ||
470 | if (!R) | |
471 | R = refreshLimits(entry->mem_obj->url); | |
472 | ||
473 | if (R && !R->flags.ignore_no_store) | |
474 | #endif | |
475 | ||
476 | return 0; | |
477 | } | |
43ae1d95 | 478 | } |
479 | ||
924f73bc | 480 | if (request->flags.auth) { |
62e76326 | 481 | /* |
482 | * Responses to requests with authorization may be cached | |
483 | * only if a Cache-Control: public reply header is present. | |
484 | * RFC 2068, sec 14.9.4 | |
485 | */ | |
486 | ||
38f9c547 | 487 | if (!EBIT_TEST(cc_mask, CC_PUBLIC)) { |
488 | #if HTTP_VIOLATIONS | |
489 | ||
490 | if (!R) | |
491 | R = refreshLimits(entry->mem_obj->url); | |
492 | ||
493 | if (R && !R->flags.ignore_auth) | |
494 | #endif | |
495 | ||
496 | return 0; | |
497 | } | |
a6dfe2d9 | 498 | } |
62e76326 | 499 | |
c68e9c6b | 500 | /* Pragma: no-cache in _replies_ is not documented in HTTP, |
501 | * but servers like "Active Imaging Webcast/2.0" sure do use it */ | |
502 | if (httpHeaderHas(hdr, HDR_PRAGMA)) { | |
62e76326 | 503 | String s = httpHeaderGetList(hdr, HDR_PRAGMA); |
504 | const int no_cache = strListIsMember(&s, "no-cache", ','); | |
505 | s.clean(); | |
506 | ||
38f9c547 | 507 | if (no_cache) { |
508 | #if HTTP_VIOLATIONS | |
509 | ||
510 | if (!R) | |
511 | R = refreshLimits(entry->mem_obj->url); | |
512 | ||
513 | if (R && !R->flags.ignore_no_cache) | |
514 | #endif | |
515 | ||
516 | return 0; | |
517 | } | |
c68e9c6b | 518 | } |
62e76326 | 519 | |
c68e9c6b | 520 | /* |
521 | * The "multipart/x-mixed-replace" content type is used for | |
522 | * continuous push replies. These are generally dynamic and | |
523 | * probably should not be cachable | |
524 | */ | |
525 | if ((v = httpHeaderGetStr(hdr, HDR_CONTENT_TYPE))) | |
62e76326 | 526 | if (!strncasecmp(v, "multipart/x-mixed-replace", 25)) |
527 | return 0; | |
528 | ||
2afaba07 | 529 | switch (getReply()->sline.status) { |
62e76326 | 530 | /* Responses that are cacheable */ |
531 | ||
19a04dac | 532 | case HTTP_OK: |
62e76326 | 533 | |
19a04dac | 534 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 535 | |
19a04dac | 536 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 537 | |
19a04dac | 538 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 539 | |
19a04dac | 540 | case HTTP_GONE: |
62e76326 | 541 | /* |
542 | * Don't cache objects that need to be refreshed on next request, | |
543 | * unless we know how to refresh it. | |
544 | */ | |
545 | ||
924f73bc | 546 | if (!refreshIsCachable(entry)) |
62e76326 | 547 | return 0; |
548 | ||
549 | /* don't cache objects from peers w/o LMT, Date, or Expires */ | |
550 | /* check that is it enough to check headers @?@ */ | |
551 | if (rep->date > -1) | |
552 | return 1; | |
553 | else if (rep->last_modified > -1) | |
554 | return 1; | |
924f73bc | 555 | else if (!_peer) |
62e76326 | 556 | return 1; |
557 | ||
558 | /* @?@ (here and 302): invalid expires header compiles to squid_curtime */ | |
559 | else if (rep->expires > -1) | |
560 | return 1; | |
561 | else | |
562 | return 0; | |
563 | ||
564 | /* NOTREACHED */ | |
565 | break; | |
566 | ||
567 | /* Responses that only are cacheable if the server says so */ | |
568 | ||
19a04dac | 569 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 570 | if (rep->expires > -1) |
571 | return 1; | |
572 | else | |
573 | return 0; | |
574 | ||
575 | /* NOTREACHED */ | |
576 | break; | |
577 | ||
578 | /* Errors can be negatively cached */ | |
579 | ||
19a04dac | 580 | case HTTP_NO_CONTENT: |
62e76326 | 581 | |
19a04dac | 582 | case HTTP_USE_PROXY: |
62e76326 | 583 | |
19a04dac | 584 | case HTTP_BAD_REQUEST: |
62e76326 | 585 | |
19a04dac | 586 | case HTTP_FORBIDDEN: |
62e76326 | 587 | |
19a04dac | 588 | case HTTP_NOT_FOUND: |
62e76326 | 589 | |
19a04dac | 590 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 591 | |
19a04dac | 592 | case HTTP_REQUEST_URI_TOO_LARGE: |
62e76326 | 593 | |
19a04dac | 594 | case HTTP_INTERNAL_SERVER_ERROR: |
62e76326 | 595 | |
19a04dac | 596 | case HTTP_NOT_IMPLEMENTED: |
62e76326 | 597 | |
19a04dac | 598 | case HTTP_BAD_GATEWAY: |
62e76326 | 599 | |
19a04dac | 600 | case HTTP_SERVICE_UNAVAILABLE: |
62e76326 | 601 | |
19a04dac | 602 | case HTTP_GATEWAY_TIMEOUT: |
62e76326 | 603 | return -1; |
604 | ||
605 | /* NOTREACHED */ | |
606 | break; | |
607 | ||
608 | /* Some responses can never be cached */ | |
609 | ||
0cdcddb9 | 610 | case HTTP_PARTIAL_CONTENT: /* Not yet supported */ |
62e76326 | 611 | |
19a04dac | 612 | case HTTP_SEE_OTHER: |
62e76326 | 613 | |
19a04dac | 614 | case HTTP_NOT_MODIFIED: |
62e76326 | 615 | |
19a04dac | 616 | case HTTP_UNAUTHORIZED: |
62e76326 | 617 | |
19a04dac | 618 | case HTTP_PROXY_AUTHENTICATION_REQUIRED: |
62e76326 | 619 | |
0cdcddb9 | 620 | case HTTP_INVALID_HEADER: /* Squid header parsing error */ |
4eb368f9 | 621 | |
622 | case HTTP_HEADER_TOO_LARGE: | |
62e76326 | 623 | return 0; |
624 | ||
c54e9052 | 625 | default: /* Unknown status code */ |
924f73bc | 626 | debug (11,0)("HttpStateData::cacheableReply: unknown http status code in reply\n"); |
62e76326 | 627 | |
628 | return 0; | |
629 | ||
630 | /* NOTREACHED */ | |
631 | break; | |
c54e9052 | 632 | } |
62e76326 | 633 | |
79d39a72 | 634 | /* NOTREACHED */ |
c54e9052 | 635 | } |
090089c4 | 636 | |
f66a9ef4 | 637 | /* |
638 | * For Vary, store the relevant request headers as | |
639 | * virtual headers in the reply | |
640 | * Returns false if the variance cannot be stored | |
641 | */ | |
642 | const char * | |
190154cf | 643 | httpMakeVaryMark(HttpRequest * request, HttpReply const * reply) |
f66a9ef4 | 644 | { |
f66a9ef4 | 645 | String vary, hdr; |
646 | const char *pos = NULL; | |
647 | const char *item; | |
648 | const char *value; | |
649 | int ilen; | |
528b2c61 | 650 | static String vstr; |
f66a9ef4 | 651 | |
528b2c61 | 652 | vstr.clean(); |
f66a9ef4 | 653 | vary = httpHeaderGetList(&reply->header, HDR_VARY); |
62e76326 | 654 | |
f66a9ef4 | 655 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 656 | char *name = (char *)xmalloc(ilen + 1); |
657 | xstrncpy(name, item, ilen + 1); | |
658 | Tolower(name); | |
9776e3cc | 659 | |
660 | if (strcmp(name, "*") == 0) { | |
661 | /* Can not handle "Vary: *" withtout ETag support */ | |
662 | safe_free(name); | |
663 | vstr.clean(); | |
664 | break; | |
665 | } | |
666 | ||
62e76326 | 667 | strListAdd(&vstr, name, ','); |
668 | hdr = httpHeaderGetByName(&request->header, name); | |
669 | safe_free(name); | |
670 | value = hdr.buf(); | |
671 | ||
672 | if (value) { | |
673 | value = rfc1738_escape_part(value); | |
674 | vstr.append("=\"", 2); | |
675 | vstr.append(value); | |
676 | vstr.append("\"", 1); | |
677 | } | |
678 | ||
679 | hdr.clean(); | |
f66a9ef4 | 680 | } |
62e76326 | 681 | |
528b2c61 | 682 | vary.clean(); |
f66a9ef4 | 683 | #if X_ACCELERATOR_VARY |
62e76326 | 684 | |
aa38be4a | 685 | pos = NULL; |
f66a9ef4 | 686 | vary = httpHeaderGetList(&reply->header, HDR_X_ACCELERATOR_VARY); |
62e76326 | 687 | |
f66a9ef4 | 688 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 689 | char *name = (char *)xmalloc(ilen + 1); |
690 | xstrncpy(name, item, ilen + 1); | |
691 | Tolower(name); | |
692 | strListAdd(&vstr, name, ','); | |
693 | hdr = httpHeaderGetByName(&request->header, name); | |
694 | safe_free(name); | |
695 | value = hdr.buf(); | |
696 | ||
697 | if (value) { | |
698 | value = rfc1738_escape_part(value); | |
699 | vstr.append("=\"", 2); | |
700 | vstr.append(value); | |
701 | vstr.append("\"", 1); | |
702 | } | |
703 | ||
704 | hdr.clean(); | |
f66a9ef4 | 705 | } |
62e76326 | 706 | |
528b2c61 | 707 | vary.clean(); |
f66a9ef4 | 708 | #endif |
62e76326 | 709 | |
528b2c61 | 710 | debug(11, 3) ("httpMakeVaryMark: %s\n", vstr.buf()); |
711 | return vstr.buf(); | |
f66a9ef4 | 712 | } |
713 | ||
4eb368f9 | 714 | void |
715 | HttpStateData::failReply(HttpReply *reply, http_status const & status) | |
716 | { | |
717 | reply->sline.version = HttpVersion(1, 0); | |
718 | reply->sline.status = status; | |
719 | storeEntryReplaceObject (entry, reply); | |
720 | ||
721 | if (eof == 1) { | |
2afaba07 | 722 | transactionComplete(); |
4eb368f9 | 723 | } |
724 | } | |
725 | ||
2afaba07 | 726 | void |
727 | HttpStateData::keepaliveAccounting(HttpReply *reply) | |
728 | { | |
729 | if (flags.keepalive) | |
730 | if (_peer) | |
731 | _peer->stats.n_keepalives_sent++; | |
732 | ||
733 | if (reply->keep_alive) { | |
734 | if (_peer) | |
735 | _peer->stats.n_keepalives_recv++; | |
736 | ||
737 | if (Config.onoff.detect_broken_server_pconns && reply->bodySize(request->method) == -1) { | |
738 | debug(11, 1) ("keepaliveAccounting: Impossible keep-alive header from '%s'\n", storeUrl(entry)); | |
739 | // debug(11, 2) ("GOT HTTP REPLY HDR:\n---------\n%s\n----------\n", readBuf->content()); | |
740 | flags.keepalive_broken = 1; | |
741 | } | |
742 | } | |
743 | } | |
744 | ||
745 | void | |
746 | HttpStateData::checkDateSkew(HttpReply *reply) | |
747 | { | |
748 | if (reply->date > -1 && !_peer) { | |
749 | int skew = abs((int)(reply->date - squid_curtime)); | |
750 | ||
751 | if (skew > 86400) | |
752 | debug(11, 3) ("%s's clock is skewed by %d seconds!\n", | |
753 | request->host, skew); | |
754 | } | |
755 | } | |
756 | ||
757 | /* | |
4eb368f9 | 758 | * This creates the error page itself.. its likely |
759 | * that the forward ported reply header max size patch | |
760 | * generates non http conformant error pages - in which | |
761 | * case the errors where should be 'BAD_GATEWAY' etc | |
762 | */ | |
b8d8561b | 763 | void |
2afaba07 | 764 | HttpStateData::processReplyHeader() |
f5558c95 | 765 | { |
528b2c61 | 766 | /* Creates a blank header. If this routine is made incremental, this will |
767 | * not do | |
768 | */ | |
2afaba07 | 769 | reply = new HttpReply; |
82384411 | 770 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
2afaba07 | 771 | debug(11, 3) ("processReplyHeader: key '%s'\n", entry->getMD5Text()); |
62e76326 | 772 | |
1a98175f | 773 | assert(!flags.headers_parsed); |
62e76326 | 774 | |
2afaba07 | 775 | http_status error = HTTP_STATUS_NONE; |
62e76326 | 776 | |
2afaba07 | 777 | const bool parsed = reply->parse(readBuf, eof, &error); |
62e76326 | 778 | |
2afaba07 | 779 | if (!parsed && error > 0) { // unrecoverable parsing error |
780 | debugs(11, 3, "processReplyHeader: Non-HTTP-compliant header: '" << readBuf->content() << "'"); | |
1a98175f | 781 | flags.headers_parsed = 1; |
2afaba07 | 782 | // negated result yields http_status |
783 | failReply (reply, error); // consumes reply | |
784 | reply = NULL; | |
82384411 | 785 | ctx_exit(ctx); |
4eb368f9 | 786 | return; |
787 | } | |
62e76326 | 788 | |
2afaba07 | 789 | if (!parsed) { // need more data |
790 | assert(!error); | |
791 | assert(!eof); | |
792 | delete reply; | |
793 | reply = NULL; | |
82384411 | 794 | ctx_exit(ctx); |
62e76326 | 795 | return; |
f5558c95 | 796 | } |
62e76326 | 797 | |
9bc73deb | 798 | debug(11, 9) ("GOT HTTP REPLY HDR:\n---------\n%s\n----------\n", |
2afaba07 | 799 | readBuf->content()); |
4eb368f9 | 800 | |
6965ab28 | 801 | readBuf->consume(headersEnd(readBuf->content(), readBuf->contentSize())); |
802 | flags.headers_parsed = 1; | |
803 | ||
2afaba07 | 804 | keepaliveAccounting(reply); |
47ac2ebe | 805 | |
2afaba07 | 806 | checkDateSkew(reply); |
47ac2ebe | 807 | |
43ae1d95 | 808 | processSurrogateControl (reply); |
528b2c61 | 809 | |
810 | /* TODO: IF the reply is a 1.0 reply, AND it has a Connection: Header | |
811 | * Parse the header and remove all referenced headers | |
812 | */ | |
813 | ||
2afaba07 | 814 | #if ICAP_CLIENT |
815 | ||
ab7ac359 | 816 | if (TheICAPConfig.onoff) { |
2afaba07 | 817 | ICAPAccessCheck *icap_access_check = |
818 | new ICAPAccessCheck(ICAP::methodRespmod, ICAP::pointPreCache, request, reply, icapAclCheckDoneWrapper, this); | |
819 | ||
820 | icapAccessCheckPending = true; | |
821 | icap_access_check->check(); // will eventually delete self | |
822 | ctx_exit(ctx); | |
823 | return; | |
824 | } | |
ab7ac359 | 825 | |
2afaba07 | 826 | #endif |
827 | ||
528b2c61 | 828 | storeEntryReplaceObject(entry, reply); |
2afaba07 | 829 | |
830 | /* Note storeEntryReplaceObject() consumes reply, so we cannot use it */ | |
528b2c61 | 831 | reply = NULL; |
832 | ||
2afaba07 | 833 | haveParsedReplyHeaders(); |
834 | ||
835 | if (eof == 1) { | |
836 | transactionComplete(); | |
837 | } | |
838 | ||
839 | ctx_exit(ctx); | |
840 | } | |
841 | ||
842 | /* | |
843 | * This function used to be joined with processReplyHeader(), but | |
844 | * we split it for ICAP. | |
845 | */ | |
846 | void | |
847 | HttpStateData::haveParsedReplyHeaders() | |
848 | { | |
849 | Ctx ctx = ctx_enter(entry->mem_obj->url); | |
850 | ||
851 | if (getReply()->sline.status == HTTP_PARTIAL_CONTENT && | |
852 | getReply()->content_range) | |
853 | currentOffset = getReply()->content_range->spec.offset; | |
62e76326 | 854 | |
9bc73deb | 855 | storeTimestampsSet(entry); |
62e76326 | 856 | |
9bc73deb | 857 | /* Check if object is cacheable or not based on reply code */ |
2afaba07 | 858 | debug(11, 3) ("haveParsedReplyHeaders: HTTP CODE: %d\n", getReply()->sline.status); |
62e76326 | 859 | |
9bc73deb | 860 | if (neighbors_do_private_keys) |
2afaba07 | 861 | httpMaybeRemovePublic(entry, getReply()->sline.status); |
e6ccf245 | 862 | |
2afaba07 | 863 | if (httpHeaderHas(&getReply()->header, HDR_VARY) |
f66a9ef4 | 864 | #if X_ACCELERATOR_VARY |
2afaba07 | 865 | || httpHeaderHas(&getReply()->header, HDR_X_ACCELERATOR_VARY) |
f66a9ef4 | 866 | #endif |
4b44c907 | 867 | ) { |
2afaba07 | 868 | const char *vary = httpMakeVaryMark(orig_request, getReply()); |
4b44c907 | 869 | |
870 | if (!vary) { | |
871 | httpMakePrivate(entry); | |
872 | goto no_cache; | |
873 | ||
62e76326 | 874 | } |
875 | ||
4b44c907 | 876 | entry->mem_obj->vary_headers = xstrdup(vary); |
877 | } | |
878 | ||
2afaba07 | 879 | #if WIP_FWD_LOG |
880 | fwdStatus(fwd, s); | |
881 | ||
882 | #endif | |
883 | /* | |
884 | * If its not a reply that we will re-forward, then | |
885 | * allow the client to get it. | |
886 | */ | |
b6b6f466 | 887 | if (!fwd->reforwardableStatus(getReply()->sline.status)) |
2afaba07 | 888 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); |
889 | ||
4b44c907 | 890 | switch (cacheableReply()) { |
891 | ||
892 | case 1: | |
893 | httpMakePublic(entry); | |
62e76326 | 894 | break; |
895 | ||
9bc73deb | 896 | case 0: |
62e76326 | 897 | httpMakePrivate(entry); |
898 | break; | |
899 | ||
9bc73deb | 900 | case -1: |
4b44c907 | 901 | |
902 | if (Config.negativeTtl > 0) | |
903 | httpCacheNegatively(entry); | |
904 | else | |
905 | httpMakePrivate(entry); | |
906 | ||
62e76326 | 907 | break; |
908 | ||
9bc73deb | 909 | default: |
62e76326 | 910 | assert(0); |
4b44c907 | 911 | |
62e76326 | 912 | break; |
9bc73deb | 913 | } |
62e76326 | 914 | |
4b44c907 | 915 | no_cache: |
916 | ||
2afaba07 | 917 | if (!ignoreCacheControl && getReply()->cache_control) { |
918 | if (EBIT_TEST(getReply()->cache_control->mask, CC_PROXY_REVALIDATE)) | |
62e76326 | 919 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
2afaba07 | 920 | else if (EBIT_TEST(getReply()->cache_control->mask, CC_MUST_REVALIDATE)) |
62e76326 | 921 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
9bc73deb | 922 | } |
62e76326 | 923 | |
9bc73deb | 924 | ctx_exit(ctx); |
c3609322 | 925 | #if HEADERS_LOG |
62e76326 | 926 | |
2afaba07 | 927 | headersLog(1, 0, request->method, getReply()); |
c3609322 | 928 | #endif |
f5558c95 | 929 | } |
930 | ||
528b2c61 | 931 | HttpStateData::ConnectionStatus |
932 | HttpStateData::statusIfComplete() const | |
603a02fd | 933 | { |
2afaba07 | 934 | HttpReply const *rep = getReply(); |
528b2c61 | 935 | /* If the reply wants to close the connection, it takes precedence */ |
62e76326 | 936 | |
2afaba07 | 937 | if (httpHeaderHasConnDir(&rep->header, "close")) |
62e76326 | 938 | return COMPLETE_NONPERSISTENT_MSG; |
939 | ||
528b2c61 | 940 | /* If we didn't send a keep-alive request header, then this |
978e455f | 941 | * can not be a persistent connection. |
942 | */ | |
528b2c61 | 943 | if (!flags.keepalive) |
62e76326 | 944 | return COMPLETE_NONPERSISTENT_MSG; |
945 | ||
72b63f06 | 946 | /* |
947 | * If we haven't sent the whole request then this can not be a persistent | |
948 | * connection. | |
949 | */ | |
950 | if (!flags.request_sent) { | |
2afdbf48 | 951 | debug(11, 1) ("statusIfComplete: Request not yet fully sent \"%s %s\"\n", |
72b63f06 | 952 | RequestMethodStr[orig_request->method], |
953 | storeUrl(entry)); | |
954 | return COMPLETE_NONPERSISTENT_MSG; | |
955 | } | |
956 | ||
9f5a2895 | 957 | /* |
958 | * What does the reply have to say about keep-alive? | |
959 | */ | |
b6a2f15e | 960 | /* |
961 | * XXX BUG? | |
962 | * If the origin server (HTTP/1.0) does not send a keep-alive | |
963 | * header, but keeps the connection open anyway, what happens? | |
964 | * We'll return here and http.c waits for an EOF before changing | |
965 | * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT | |
966 | * and an error status code, and we might have to wait until | |
967 | * the server times out the socket. | |
968 | */ | |
2afaba07 | 969 | if (!rep->keep_alive) |
528b2c61 | 970 | return COMPLETE_NONPERSISTENT_MSG; |
62e76326 | 971 | |
528b2c61 | 972 | return COMPLETE_PERSISTENT_MSG; |
973 | } | |
974 | ||
975 | HttpStateData::ConnectionStatus | |
976 | HttpStateData::persistentConnStatus() const | |
977 | { | |
2afaba07 | 978 | HttpReply const *reply = getReply(); |
528b2c61 | 979 | int clen; |
2afaba07 | 980 | debug(11, 3) ("persistentConnStatus: FD %d\n", fd); |
528b2c61 | 981 | ConnectionStatus result = statusIfComplete(); |
2afaba07 | 982 | debug(11, 5) ("persistentConnStatus: content_length=%d\n", |
62e76326 | 983 | reply->content_length); |
35282fbf | 984 | /* If we haven't seen the end of reply headers, we are not done */ |
62e76326 | 985 | |
2afaba07 | 986 | debug(11,5)("persistentConnStatus: flags.headers_parsed=%d\n", flags.headers_parsed); |
987 | ||
1a98175f | 988 | if (!flags.headers_parsed) |
62e76326 | 989 | return INCOMPLETE_MSG; |
990 | ||
06a5ae20 | 991 | clen = reply->bodySize(request->method); |
62e76326 | 992 | |
2afaba07 | 993 | debug(11,5)("persistentConnStatus: clen=%d\n", clen); |
994 | ||
35282fbf | 995 | /* If there is no message body, we can be persistent */ |
996 | if (0 == clen) | |
62e76326 | 997 | return result; |
998 | ||
35282fbf | 999 | /* If the body size is unknown we must wait for EOF */ |
1000 | if (clen < 0) | |
62e76326 | 1001 | return INCOMPLETE_MSG; |
1002 | ||
35282fbf | 1003 | /* If the body size is known, we must wait until we've gotten all of it. */ |
2afaba07 | 1004 | /* old technique: |
1005 | * if (entry->mem_obj->endOffset() < reply->content_length + reply->hdr_sz) */ | |
1006 | debug(11,5)("persistentConnStatus: body_bytes_read=%d, content_length=%d\n", | |
1007 | body_bytes_read, reply->content_length); | |
1008 | ||
1009 | if (body_bytes_read < reply->content_length) | |
62e76326 | 1010 | return INCOMPLETE_MSG; |
1011 | ||
35282fbf | 1012 | /* We got it all */ |
528b2c61 | 1013 | return result; |
603a02fd | 1014 | } |
090089c4 | 1015 | |
2afaba07 | 1016 | /* |
1017 | * This is the callback after some data has been read from the network | |
1018 | */ | |
e5ee81f0 | 1019 | void |
1020 | HttpStateData::ReadReplyWrapper(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data) | |
c4b7a5a9 | 1021 | { |
1022 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
7194987f | 1023 | assert (fd == httpState->fd); |
2afaba07 | 1024 | // assert(buf == readBuf->content()); |
1d5161bd | 1025 | PROF_start(HttpStateData_readReply); |
2afaba07 | 1026 | httpState->readReply (len, flag, xerrno); |
1d5161bd | 1027 | PROF_stop(HttpStateData_readReply); |
c4b7a5a9 | 1028 | } |
1029 | ||
2afdbf48 | 1030 | /* XXX this function is too long! */ |
c4b7a5a9 | 1031 | void |
2afaba07 | 1032 | HttpStateData::readReply (size_t len, comm_err_t flag, int xerrno) |
090089c4 | 1033 | { |
30a4f2a8 | 1034 | int bin; |
090089c4 | 1035 | int clen; |
f61f0107 | 1036 | flags.do_next_read = 0; |
c4b7a5a9 | 1037 | |
2afaba07 | 1038 | /* |
1039 | * Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us | |
1040 | */ | |
62e76326 | 1041 | |
c4b7a5a9 | 1042 | if (flag == COMM_ERR_CLOSING) { |
d09176e1 | 1043 | debug (11,3)("http socket closing\n"); |
c4b7a5a9 | 1044 | return; |
1045 | } | |
1046 | ||
e92e4e44 | 1047 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1048 | maybeReadData(); |
1049 | return; | |
e92e4e44 | 1050 | } |
c4b7a5a9 | 1051 | |
1513873c | 1052 | errno = 0; |
c4b7a5a9 | 1053 | /* prepare the read size for the next read (if any) */ |
62e76326 | 1054 | |
c4b7a5a9 | 1055 | debug(11, 5) ("httpReadReply: FD %d: len %d.\n", fd, (int)len); |
62e76326 | 1056 | |
c4b7a5a9 | 1057 | if (flag == COMM_OK && len > 0) { |
2afaba07 | 1058 | readBuf->appended(len); |
447e176b | 1059 | #if DELAY_POOLS |
2afaba07 | 1060 | |
1061 | DelayId delayId = entry->mem_obj->mostBytesAllowed(); | |
62e76326 | 1062 | delayId.bytesIn(len); |
447e176b | 1063 | #endif |
62e76326 | 1064 | |
1065 | kb_incr(&statCounter.server.all.kbytes_in, len); | |
1066 | kb_incr(&statCounter.server.http.kbytes_in, len); | |
62e76326 | 1067 | IOStats.Http.reads++; |
1068 | ||
1069 | for (clen = len - 1, bin = 0; clen; bin++) | |
1070 | clen >>= 1; | |
1071 | ||
1072 | IOStats.Http.read_hist[bin]++; | |
30a4f2a8 | 1073 | } |
62e76326 | 1074 | |
5fa061b8 | 1075 | /* here the RFC says we should ignore whitespace between replies, but we can't as |
1076 | * doing so breaks HTTP/0.9 replies beginning with witespace, and in addition | |
1077 | * the response splitting countermeasures is extremely likely to trigger on this, | |
1078 | * not allowing connection reuse in the first place. | |
1079 | */ | |
1080 | #if DONT_DO_THIS | |
1a98175f | 1081 | if (!flags.headers_parsed && flag == COMM_OK && len > 0 && fd_table[fd].uses > 1) { |
5fa061b8 | 1082 | /* Skip whitespace between replies */ |
62e76326 | 1083 | |
5fa061b8 | 1084 | while (len > 0 && isspace(*buf)) |
62e76326 | 1085 | xmemmove(buf, buf + 1, len--); |
1086 | ||
1087 | if (len == 0) { | |
1088 | /* Continue to read... */ | |
21b92762 | 1089 | /* Timeout NOT increased. This whitespace was from previous reply */ |
f61f0107 | 1090 | flags.do_next_read = 1; |
62e76326 | 1091 | maybeReadData(); |
1092 | return; | |
1093 | } | |
5ede6c8f | 1094 | } |
62e76326 | 1095 | |
5fa061b8 | 1096 | #endif |
1097 | ||
c4b7a5a9 | 1098 | if (flag != COMM_OK || len < 0) { |
62e76326 | 1099 | debug(50, 2) ("httpReadReply: FD %d: read failure: %s.\n", |
1100 | fd, xstrerror()); | |
1101 | ||
1102 | if (ignoreErrno(errno)) { | |
f61f0107 | 1103 | flags.do_next_read = 1; |
6cae5db1 | 1104 | } else { |
62e76326 | 1105 | ErrorState *err; |
4eb368f9 | 1106 | err = errorCon(ERR_READ_ERROR, HTTP_BAD_GATEWAY); |
62e76326 | 1107 | err->xerrno = errno; |
b6b6f466 | 1108 | fwd->fail(err); |
f61f0107 | 1109 | flags.do_next_read = 0; |
62e76326 | 1110 | comm_close(fd); |
62e76326 | 1111 | } |
2afaba07 | 1112 | } else if (flag == COMM_OK && len == 0 && !flags.headers_parsed) { |
b6b6f466 | 1113 | fwd->fail(errorCon(ERR_ZERO_SIZE_OBJECT, HTTP_BAD_GATEWAY)); |
62e76326 | 1114 | eof = 1; |
f61f0107 | 1115 | flags.do_next_read = 0; |
62e76326 | 1116 | comm_close(fd); |
c4b7a5a9 | 1117 | } else if (flag == COMM_OK && len == 0) { |
62e76326 | 1118 | /* Connection closed; retrieval done. */ |
1119 | eof = 1; | |
1120 | ||
1a98175f | 1121 | if (!flags.headers_parsed) |
62e76326 | 1122 | /* |
3f7d66c7 | 1123 | * When we called processReplyHeader() before, we |
1a98175f | 1124 | * didn't find the end of headers, but now we are |
1125 | * definately at EOF, so we want to process the reply | |
1126 | * headers. | |
62e76326 | 1127 | */ |
2afaba07 | 1128 | processReplyHeader(); |
1129 | else if (getReply()->sline.status == HTTP_INVALID_HEADER && HttpVersion(0,9) != getReply()->sline.version) { | |
b6b6f466 | 1130 | fwd->fail(errorCon(ERR_INVALID_RESP, HTTP_BAD_GATEWAY)); |
f61f0107 | 1131 | flags.do_next_read = 0; |
47ac2ebe | 1132 | } else { |
4eb368f9 | 1133 | if (entry->mem_obj->getReply()->sline.status == HTTP_HEADER_TOO_LARGE) { |
4eb368f9 | 1134 | storeEntryReset(entry); |
b6b6f466 | 1135 | fwd->fail( errorCon(ERR_TOO_BIG, HTTP_BAD_GATEWAY)); |
1136 | fwd->dontRetry(true); | |
2afaba07 | 1137 | flags.do_next_read = 0; |
1138 | comm_close(fd); | |
4eb368f9 | 1139 | } else { |
2afaba07 | 1140 | transactionComplete(); |
4eb368f9 | 1141 | } |
62e76326 | 1142 | } |
090089c4 | 1143 | } else { |
1a98175f | 1144 | if (!flags.headers_parsed) { |
2afaba07 | 1145 | processReplyHeader(); |
62e76326 | 1146 | |
1a98175f | 1147 | if (flags.headers_parsed) { |
2afaba07 | 1148 | http_status s = getReply()->sline.status; |
1149 | HttpVersion httpver = getReply()->sline.version; | |
47ac2ebe | 1150 | |
b735b90c | 1151 | if (s == HTTP_INVALID_HEADER && httpver != HttpVersion(0,9)) { |
47ac2ebe | 1152 | storeEntryReset(entry); |
b6b6f466 | 1153 | fwd->fail( errorCon(ERR_INVALID_RESP, HTTP_BAD_GATEWAY)); |
47ac2ebe | 1154 | comm_close(fd); |
1155 | return; | |
1156 | } | |
1157 | ||
2afaba07 | 1158 | } |
1159 | } | |
1160 | ||
1161 | PROF_start(HttpStateData_processReplyBody); | |
1162 | processReplyBody(); | |
1163 | PROF_stop(HttpStateData_processReplyBody); | |
1164 | } | |
1165 | } | |
1166 | ||
1167 | /* | |
1168 | * Call this when there is data from the origin server | |
1169 | * which should be sent to either StoreEntry, or to ICAP... | |
1170 | */ | |
1171 | void | |
1172 | HttpStateData::writeReplyBody(const char *data, int len) | |
1173 | { | |
1174 | #if ICAP_CLIENT | |
62e76326 | 1175 | |
2afaba07 | 1176 | if (icap) { |
1177 | icap->sendMoreData (StoreIOBuffer(len, 0, (char*)data)); | |
1178 | return; | |
1179 | } | |
47ac2ebe | 1180 | |
225644d7 | 1181 | #endif |
62e76326 | 1182 | |
2afaba07 | 1183 | entry->write (StoreIOBuffer(len, currentOffset, (char*)data)); |
62e76326 | 1184 | |
2afaba07 | 1185 | currentOffset += len; |
e6ccf245 | 1186 | } |
1187 | ||
2afaba07 | 1188 | /* |
1189 | * processReplyBody has two purposes: | |
1190 | * 1 - take the reply body data, if any, and put it into either | |
1191 | * the StoreEntry, or give it over to ICAP. | |
1192 | * 2 - see if we made it to the end of the response (persistent | |
1193 | * connections and such) | |
1194 | */ | |
e6ccf245 | 1195 | void |
2afaba07 | 1196 | HttpStateData::processReplyBody() |
e6ccf245 | 1197 | { |
1a98175f | 1198 | if (!flags.headers_parsed) { |
f61f0107 | 1199 | flags.do_next_read = 1; |
62e76326 | 1200 | maybeReadData(); |
1201 | return; | |
528b2c61 | 1202 | } |
62e76326 | 1203 | |
2afaba07 | 1204 | #if ICAP_CLIENT |
1205 | if (icapAccessCheckPending) | |
1206 | return; | |
62e76326 | 1207 | |
2afaba07 | 1208 | #endif |
62e76326 | 1209 | |
2afaba07 | 1210 | /* |
1211 | * At this point the reply headers have been parsed and consumed. | |
1212 | * That means header content has been removed from readBuf and | |
1213 | * it contains only body data. | |
1214 | */ | |
1215 | writeReplyBody(readBuf->content(), readBuf->contentSize()); | |
62e76326 | 1216 | |
2afaba07 | 1217 | body_bytes_read += readBuf->contentSize(); |
1218 | ||
1219 | readBuf->consume(readBuf->contentSize()); | |
528b2c61 | 1220 | |
e6ccf245 | 1221 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1222 | /* |
2afaba07 | 1223 | * the above writeReplyBody() call could ABORT this entry, |
62e76326 | 1224 | * in that case, the server FD should already be closed. |
1225 | * there's nothing for us to do. | |
1226 | */ | |
1227 | (void) 0; | |
1228 | } else | |
1229 | switch (persistentConnStatus()) { | |
1230 | ||
1231 | case INCOMPLETE_MSG: | |
2afaba07 | 1232 | debug(11,5)("processReplyBody: INCOMPLETE_MSG\n"); |
21b92762 | 1233 | /* Wait for more data or EOF condition */ |
1234 | ||
1235 | if (flags.keepalive_broken) { | |
1236 | commSetTimeout(fd, 10, NULL, NULL); | |
1237 | } else { | |
1238 | commSetTimeout(fd, Config.Timeout.read, NULL, NULL); | |
1239 | } | |
1240 | ||
f61f0107 | 1241 | flags.do_next_read = 1; |
62e76326 | 1242 | break; |
1243 | ||
1244 | case COMPLETE_PERSISTENT_MSG: | |
2afaba07 | 1245 | debug(11,5)("processReplyBody: COMPLETE_PERSISTENT_MSG\n"); |
62e76326 | 1246 | /* yes we have to clear all these! */ |
62e76326 | 1247 | commSetTimeout(fd, -1, NULL, NULL); |
f61f0107 | 1248 | flags.do_next_read = 0; |
62e76326 | 1249 | |
1250 | comm_remove_close_handler(fd, httpStateFree, this); | |
b6b6f466 | 1251 | fwd->unregister(fd); |
bd0723ad | 1252 | |
1253 | if (_peer) { | |
1254 | if (_peer->options.originserver) | |
b6b6f466 | 1255 | fwd->pconnPush(fd, _peer->name, orig_request->port, orig_request->host); |
bd0723ad | 1256 | else |
b6b6f466 | 1257 | fwd->pconnPush(fd, _peer->name, _peer->http_port, NULL); |
bd0723ad | 1258 | } else { |
b6b6f466 | 1259 | fwd->pconnPush(fd, request->host, request->port, NULL); |
bd0723ad | 1260 | } |
1261 | ||
62e76326 | 1262 | fd = -1; |
2afaba07 | 1263 | |
1264 | transactionComplete(); | |
62e76326 | 1265 | return; |
1266 | ||
1267 | case COMPLETE_NONPERSISTENT_MSG: | |
2afaba07 | 1268 | debug(11,5)("processReplyBody: COMPLETE_NONPERSISTENT_MSG\n"); |
1269 | transactionComplete(); | |
62e76326 | 1270 | return; |
1271 | } | |
1272 | ||
c4b7a5a9 | 1273 | maybeReadData(); |
1274 | } | |
1275 | ||
1276 | void | |
1277 | HttpStateData::maybeReadData() | |
1278 | { | |
2afaba07 | 1279 | int read_sz = readBuf->spaceSize(); |
1280 | #if ICAP_CLIENT | |
1281 | ||
1282 | if (icap) { | |
1283 | /* | |
1284 | * Our ICAP message pipes have a finite size limit. We | |
1285 | * should not read more data from the network than will fit | |
1286 | * into the pipe buffer. If totally full, don't register | |
1287 | * the read handler at all. The ICAP side will call our | |
1288 | * icapSpaceAvailable() method when it has free space again. | |
1289 | */ | |
1290 | int icap_space = icap->potentialSpaceSize(); | |
1291 | ||
1292 | debugs(11,9, "HttpStateData may read up to min(" << icap_space << | |
1293 | ", " << read_sz << ") bytes"); | |
1294 | ||
1295 | if (icap_space < read_sz) | |
1296 | read_sz = icap_space; | |
1297 | } | |
1298 | ||
1299 | #endif | |
1300 | ||
1301 | debugs(11,9, "HttpStateData may read up to " << read_sz << " bytes"); | |
1302 | ||
1303 | /* | |
1304 | * why <2? Because delayAwareRead() won't actually read if | |
1305 | * you ask it to read 1 byte. The delayed read request | |
1306 | * just gets re-queued until the client side drains, then | |
1307 | * the I/O thread hangs. Better to not register any read | |
1308 | * handler until we get a notification from someone that | |
1309 | * its okay to read again. | |
1310 | */ | |
1311 | if (read_sz < 2) | |
1312 | return; | |
1313 | ||
f61f0107 | 1314 | if (flags.do_next_read) { |
1315 | flags.do_next_read = 0; | |
e5ee81f0 | 1316 | entry->delayAwareRead(fd, readBuf->space(), read_sz, ReadReplyWrapper, this); |
528b2c61 | 1317 | } |
090089c4 | 1318 | } |
1319 | ||
2afaba07 | 1320 | /* |
1321 | * This will be called when request write is complete. | |
1322 | */ | |
d576a6a6 | 1323 | void |
1324 | HttpStateData::SendComplete(int fd, char *bufnotused, size_t size, comm_err_t errflag, void *data) | |
090089c4 | 1325 | { |
e6ccf245 | 1326 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
a3d5953d | 1327 | debug(11, 5) ("httpSendComplete: FD %d: size %d: errflag %d.\n", |
62e76326 | 1328 | fd, (int) size, errflag); |
bc87dc25 | 1329 | #if URL_CHECKSUM_DEBUG |
62e76326 | 1330 | |
528b2c61 | 1331 | entry->mem_obj->checkUrlChecksum(); |
bc87dc25 | 1332 | #endif |
62e76326 | 1333 | |
ee1679df | 1334 | if (size > 0) { |
62e76326 | 1335 | fd_bytes(fd, size, FD_WRITE); |
1336 | kb_incr(&statCounter.server.all.kbytes_out, size); | |
1337 | kb_incr(&statCounter.server.http.kbytes_out, size); | |
ee1679df | 1338 | } |
62e76326 | 1339 | |
ea3a2a69 | 1340 | if (errflag == COMM_ERR_CLOSING) |
62e76326 | 1341 | return; |
1342 | ||
090089c4 | 1343 | if (errflag) { |
6cae5db1 | 1344 | ErrorState *err; |
4eb368f9 | 1345 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY); |
62e76326 | 1346 | err->xerrno = errno; |
b6b6f466 | 1347 | httpState->fwd->fail(err); |
62e76326 | 1348 | comm_close(fd); |
1349 | return; | |
090089c4 | 1350 | } |
72b63f06 | 1351 | |
2afaba07 | 1352 | /* |
1353 | * Set the read timeout here because it hasn't been set yet. | |
1354 | * We only set the read timeout after the request has been | |
1355 | * fully written to the server-side. If we start the timeout | |
1356 | * after connection establishment, then we are likely to hit | |
1357 | * the timeout for POST/PUT requests that have very large | |
1358 | * request bodies. | |
1359 | */ | |
1360 | commSetTimeout(fd, Config.Timeout.read, httpTimeout, httpState); | |
1361 | ||
72b63f06 | 1362 | httpState->flags.request_sent = 1; |
090089c4 | 1363 | } |
1364 | ||
2afaba07 | 1365 | /* |
1366 | * Calling this function marks the end of the HTTP transaction. | |
1367 | * i.e., done talking to the HTTP server. With ICAP, however, that | |
1368 | * does not mean that we're done with HttpStateData and the StoreEntry. | |
1369 | * We'll be expecting adapted data to come back from the ICAP | |
1370 | * routines. | |
1371 | */ | |
1372 | void | |
1373 | HttpStateData::transactionComplete() | |
1374 | { | |
2bb867b5 | 1375 | debugs(11,5,HERE << "transactionComplete FD " << fd << " this " << this); |
1376 | ||
2afaba07 | 1377 | if (fd >= 0) { |
b6b6f466 | 1378 | fwd->unregister(fd); |
2afaba07 | 1379 | comm_remove_close_handler(fd, httpStateFree, this); |
1380 | comm_close(fd); | |
1381 | fd = -1; | |
1382 | } | |
1383 | ||
1384 | #if ICAP_CLIENT | |
1385 | if (icap) { | |
1386 | icap->doneSending(); | |
30398be3 | 1387 | return; |
1388 | } | |
2afaba07 | 1389 | |
1390 | #endif | |
1391 | ||
b6b6f466 | 1392 | fwd->complete(); |
2afaba07 | 1393 | |
30398be3 | 1394 | httpStateFree(-1, this); |
2afaba07 | 1395 | } |
1396 | ||
99edd1c3 | 1397 | /* |
1398 | * build request headers and append them to a given MemBuf | |
e5ee81f0 | 1399 | * used by buildRequestPrefix() |
818c6c9e | 1400 | * note: initialised the HttpHeader, the caller is responsible for Clean()-ing |
99edd1c3 | 1401 | */ |
e1e72f06 | 1402 | void |
e5ee81f0 | 1403 | HttpStateData::httpBuildRequestHeader(HttpRequest * request, |
1404 | HttpRequest * orig_request, | |
1405 | StoreEntry * entry, | |
1406 | HttpHeader * hdr_out, | |
1407 | http_state_flags flags) | |
6bf8443a | 1408 | { |
99edd1c3 | 1409 | /* building buffer for complex strings */ |
5999b776 | 1410 | #define BBUF_SZ (MAX_URL+32) |
99edd1c3 | 1411 | LOCAL_ARRAY(char, bbuf, BBUF_SZ); |
99edd1c3 | 1412 | const HttpHeader *hdr_in = &orig_request->header; |
1413 | const HttpHeaderEntry *e; | |
6bccf575 | 1414 | String strFwd; |
99edd1c3 | 1415 | HttpHeaderPos pos = HttpHeaderInitPos; |
75faaa7a | 1416 | assert (hdr_out->owner == hoRequest); |
99edd1c3 | 1417 | /* append our IMS header */ |
62e76326 | 1418 | |
fa3e249f | 1419 | if (request->lastmod > -1) |
62e76326 | 1420 | httpHeaderPutTime(hdr_out, HDR_IF_MODIFIED_SINCE, request->lastmod); |
99edd1c3 | 1421 | |
528b2c61 | 1422 | bool we_do_ranges = decideIfWeDoRanges (orig_request); |
1423 | ||
650c4b88 | 1424 | String strConnection (httpHeaderGetList(hdr_in, HDR_CONNECTION)); |
62e76326 | 1425 | |
528b2c61 | 1426 | while ((e = httpHeaderGetEntry(hdr_in, &pos))) |
62e76326 | 1427 | copyOneHeaderFromClientsideRequestToUpstreamRequest(e, strConnection, request, orig_request, hdr_out, we_do_ranges, flags); |
528b2c61 | 1428 | |
43ae1d95 | 1429 | /* Abstraction break: We should interpret multipart/byterange responses |
528b2c61 | 1430 | * into offset-length data, and this works around our inability to do so. |
1431 | */ | |
62e76326 | 1432 | if (!we_do_ranges && orig_request->multipartRangeRequest()) { |
1433 | /* don't cache the result */ | |
1434 | orig_request->flags.cachable = 0; | |
1435 | /* pretend it's not a range request */ | |
00d77d6b | 1436 | delete orig_request->range; |
62e76326 | 1437 | orig_request->range = NULL; |
1438 | orig_request->flags.range = 0; | |
1439 | } | |
528b2c61 | 1440 | |
99edd1c3 | 1441 | /* append Via */ |
736cb6aa | 1442 | if (Config.onoff.via) { |
43ae1d95 | 1443 | String strVia; |
1444 | strVia = httpHeaderGetList(hdr_in, HDR_VIA); | |
62e76326 | 1445 | snprintf(bbuf, BBUF_SZ, "%d.%d %s", |
1446 | orig_request->http_ver.major, | |
1447 | orig_request->http_ver.minor, ThisCache); | |
1448 | strListAdd(&strVia, bbuf, ','); | |
1449 | httpHeaderPutStr(hdr_out, HDR_VIA, strVia.buf()); | |
1450 | strVia.clean(); | |
736cb6aa | 1451 | } |
62e76326 | 1452 | |
43ae1d95 | 1453 | #if ESI |
1454 | { | |
1455 | /* Append Surrogate-Capabilities */ | |
1456 | String strSurrogate (httpHeaderGetList(hdr_in, HDR_SURROGATE_CAPABILITY)); | |
ec43ae0e | 1457 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0 ESI/1.0\"", |
43ae1d95 | 1458 | Config.Accel.surrogate_id); |
1459 | strListAdd(&strSurrogate, bbuf, ','); | |
1460 | httpHeaderPutStr(hdr_out, HDR_SURROGATE_CAPABILITY, strSurrogate.buf()); | |
1461 | } | |
1462 | #endif | |
1463 | ||
99edd1c3 | 1464 | /* append X-Forwarded-For */ |
6bccf575 | 1465 | strFwd = httpHeaderGetList(hdr_in, HDR_X_FORWARDED_FOR); |
62e76326 | 1466 | |
6056ae68 | 1467 | if (opt_forwarded_for && orig_request->client_addr.s_addr != no_addr.s_addr) |
62e76326 | 1468 | strListAdd(&strFwd, inet_ntoa(orig_request->client_addr), ','); |
6056ae68 | 1469 | else |
62e76326 | 1470 | strListAdd(&strFwd, "unknown", ','); |
1471 | ||
528b2c61 | 1472 | httpHeaderPutStr(hdr_out, HDR_X_FORWARDED_FOR, strFwd.buf()); |
62e76326 | 1473 | |
528b2c61 | 1474 | strFwd.clean(); |
6bccf575 | 1475 | |
99edd1c3 | 1476 | /* append Host if not there already */ |
1477 | if (!httpHeaderHas(hdr_out, HDR_HOST)) { | |
62e76326 | 1478 | if (orig_request->peer_domain) { |
1479 | httpHeaderPutStr(hdr_out, HDR_HOST, orig_request->peer_domain); | |
1480 | } else if (orig_request->port == urlDefaultPort(orig_request->protocol)) { | |
1481 | /* use port# only if not default */ | |
1482 | httpHeaderPutStr(hdr_out, HDR_HOST, orig_request->host); | |
1483 | } else { | |
1484 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
1485 | orig_request->host, (int) orig_request->port); | |
1486 | } | |
6bf8443a | 1487 | } |
62e76326 | 1488 | |
c68e9c6b | 1489 | /* append Authorization if known in URL, not in header and going direct */ |
1490 | if (!httpHeaderHas(hdr_out, HDR_AUTHORIZATION)) { | |
62e76326 | 1491 | if (!request->flags.proxying && *request->login) { |
1492 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1493 | base64_encode(request->login)); | |
1494 | } | |
c68e9c6b | 1495 | } |
62e76326 | 1496 | |
c68e9c6b | 1497 | /* append Proxy-Authorization if configured for peer, and proxying */ |
c3b33cb7 | 1498 | if (request->flags.proxying && orig_request->peer_login && |
62e76326 | 1499 | !httpHeaderHas(hdr_out, HDR_PROXY_AUTHORIZATION)) { |
1500 | if (*orig_request->peer_login == '*') { | |
1501 | /* Special mode, to pass the username to the upstream cache */ | |
1502 | char loginbuf[256]; | |
1503 | const char *username = "-"; | |
1504 | ||
1505 | if (orig_request->auth_user_request) | |
1506 | username = orig_request->auth_user_request->username(); | |
abb929f0 | 1507 | else if (orig_request->extacl_user.size()) |
1508 | username = orig_request->extacl_user.buf(); | |
62e76326 | 1509 | |
1510 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1511 | ||
1512 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1513 | base64_encode(loginbuf)); | |
1514 | } else if (strcmp(orig_request->peer_login, "PASS") == 0) { | |
abb929f0 | 1515 | if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1516 | char loginbuf[256]; | |
1517 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); | |
1518 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1519 | base64_encode(loginbuf)); | |
1520 | } | |
62e76326 | 1521 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { |
1522 | /* Nothing to do */ | |
1523 | } else { | |
1524 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1525 | base64_encode(orig_request->peer_login)); | |
1526 | } | |
c68e9c6b | 1527 | } |
62e76326 | 1528 | |
be753325 | 1529 | /* append WWW-Authorization if configured for peer */ |
1530 | if (flags.originpeer && orig_request->peer_login && | |
62e76326 | 1531 | !httpHeaderHas(hdr_out, HDR_AUTHORIZATION)) { |
1532 | if (strcmp(orig_request->peer_login, "PASS") == 0) { | |
1533 | /* No credentials to forward.. (should have been done above if available) */ | |
1534 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { | |
1535 | /* Special mode, convert proxy authentication to WWW authentication | |
abb929f0 | 1536 | * (also applies to authentication provided by external acl) |
62e76326 | 1537 | */ |
1538 | const char *auth = httpHeaderGetStr(hdr_in, HDR_PROXY_AUTHORIZATION); | |
1539 | ||
1540 | if (auth && strncasecmp(auth, "basic ", 6) == 0) { | |
1541 | httpHeaderPutStr(hdr_out, HDR_AUTHORIZATION, auth); | |
abb929f0 | 1542 | } else if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1543 | char loginbuf[256]; | |
1544 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); | |
1545 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1546 | base64_encode(loginbuf)); | |
62e76326 | 1547 | } |
1548 | } else if (*orig_request->peer_login == '*') { | |
1549 | /* Special mode, to pass the username to the upstream cache */ | |
1550 | char loginbuf[256]; | |
1551 | const char *username = "-"; | |
1552 | ||
1553 | if (orig_request->auth_user_request) | |
f5691f9c | 1554 | username = orig_request->auth_user_request->username(); |
abb929f0 | 1555 | else if (orig_request->extacl_user.size()) |
1556 | username = orig_request->extacl_user.buf(); | |
62e76326 | 1557 | |
1558 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1559 | ||
1560 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1561 | base64_encode(loginbuf)); | |
1562 | } else { | |
1563 | /* Fixed login string */ | |
1564 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1565 | base64_encode(orig_request->peer_login)); | |
1566 | } | |
be753325 | 1567 | } |
62e76326 | 1568 | |
abb929f0 | 1569 | /* append Cache-Control, add max-age if not there already */ { |
62e76326 | 1570 | HttpHdrCc *cc = httpHeaderGetCc(hdr_in); |
1571 | ||
1572 | if (!cc) | |
1573 | cc = httpHdrCcCreate(); | |
1574 | ||
1575 | if (!EBIT_TEST(cc->mask, CC_MAX_AGE)) { | |
43ae1d95 | 1576 | const char *url = |
1577 | entry ? storeUrl(entry) : urlCanonical(orig_request); | |
62e76326 | 1578 | httpHdrCcSetMaxAge(cc, getMaxAge(url)); |
1579 | ||
1580 | if (request->urlpath.size()) | |
1581 | assert(strstr(url, request->urlpath.buf())); | |
1582 | } | |
1583 | ||
ce2d6441 | 1584 | /* Set no-cache if determined needed but not found */ |
1585 | if (orig_request->flags.nocache && !httpHeaderHas(hdr_in, HDR_PRAGMA)) | |
1586 | EBIT_SET(cc->mask, CC_NO_CACHE); | |
1587 | ||
1588 | /* Enforce sibling relations */ | |
62e76326 | 1589 | if (flags.only_if_cached) |
1590 | EBIT_SET(cc->mask, CC_ONLY_IF_CACHED); | |
1591 | ||
1592 | httpHeaderPutCc(hdr_out, cc); | |
1593 | ||
1594 | httpHdrCcDestroy(cc); | |
6bf8443a | 1595 | } |
62e76326 | 1596 | |
99edd1c3 | 1597 | /* maybe append Connection: keep-alive */ |
b515fc11 | 1598 | if (flags.keepalive) { |
62e76326 | 1599 | if (flags.proxying) { |
1600 | httpHeaderPutStr(hdr_out, HDR_PROXY_CONNECTION, "keep-alive"); | |
1601 | } else { | |
1602 | httpHeaderPutStr(hdr_out, HDR_CONNECTION, "keep-alive"); | |
1603 | } | |
603a02fd | 1604 | } |
62e76326 | 1605 | |
a7ad6e4e | 1606 | /* append Front-End-Https */ |
1607 | if (flags.front_end_https) { | |
62e76326 | 1608 | if (flags.front_end_https == 1 || request->protocol == PROTO_HTTPS) |
1609 | httpHeaderPutStr(hdr_out, HDR_FRONT_END_HTTPS, "On"); | |
a7ad6e4e | 1610 | } |
1611 | ||
6bccf575 | 1612 | /* Now mangle the headers. */ |
4f56514c | 1613 | if (Config2.onoff.mangle_request_headers) |
5967c0bf | 1614 | httpHdrMangleList(hdr_out, request, ROR_REQUEST); |
62e76326 | 1615 | |
528b2c61 | 1616 | strConnection.clean(); |
99edd1c3 | 1617 | } |
1618 | ||
528b2c61 | 1619 | void |
190154cf | 1620 | copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, String strConnection, HttpRequest * request, HttpRequest * orig_request, HttpHeader * hdr_out, int we_do_ranges, http_state_flags flags) |
528b2c61 | 1621 | { |
1622 | debug(11, 5) ("httpBuildRequestHeader: %s: %s\n", | |
62e76326 | 1623 | e->name.buf(), e->value.buf()); |
1624 | ||
528b2c61 | 1625 | if (!httpRequestHdrAllowed(e, &strConnection)) { |
62e76326 | 1626 | debug(11, 2) ("'%s' header denied by anonymize_headers configuration\n",+ e->name.buf()); |
1627 | return; | |
528b2c61 | 1628 | } |
62e76326 | 1629 | |
528b2c61 | 1630 | switch (e->id) { |
62e76326 | 1631 | |
be753325 | 1632 | case HDR_PROXY_AUTHORIZATION: |
62e76326 | 1633 | /* Only pass on proxy authentication to peers for which |
1634 | * authentication forwarding is explicitly enabled | |
1635 | */ | |
1636 | ||
1637 | if (flags.proxying && orig_request->peer_login && | |
abb929f0 | 1638 | (strcmp(orig_request->peer_login, "PASS") == 0 || |
1639 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
62e76326 | 1640 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); |
1641 | } | |
1642 | ||
1643 | break; | |
1644 | ||
be753325 | 1645 | case HDR_AUTHORIZATION: |
62e76326 | 1646 | /* Pass on WWW authentication */ |
1647 | ||
1648 | if (!flags.originpeer) { | |
1649 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); | |
1650 | } else { | |
1651 | /* In accelerators, only forward authentication if enabled | |
1652 | * (see also below for proxy->server authentication) | |
1653 | */ | |
1654 | ||
abb929f0 | 1655 | if (orig_request->peer_login && |
1656 | (strcmp(orig_request->peer_login, "PASS") == 0 || | |
1657 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
62e76326 | 1658 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); |
1659 | } | |
1660 | } | |
1661 | ||
1662 | break; | |
1663 | ||
be753325 | 1664 | case HDR_HOST: |
62e76326 | 1665 | /* |
b883b594 | 1666 | * Normally Squid rewrites the Host: header. |
1667 | * However, there is one case when we don't: If the URL | |
62e76326 | 1668 | * went through our redirector and the admin configured |
1669 | * 'redir_rewrites_host' to be off. | |
1670 | */ | |
1671 | ||
b883b594 | 1672 | if (request->flags.redirected && !Config.onoff.redir_rewrites_host) |
1673 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); | |
1674 | else { | |
1675 | /* use port# only if not default */ | |
1676 | ||
1677 | if (orig_request->port == urlDefaultPort(orig_request->protocol)) { | |
1678 | httpHeaderPutStr(hdr_out, HDR_HOST, orig_request->host); | |
1679 | } else { | |
1680 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
1681 | orig_request->host, (int) orig_request->port); | |
1682 | } | |
1683 | } | |
62e76326 | 1684 | |
1685 | break; | |
1686 | ||
be753325 | 1687 | case HDR_IF_MODIFIED_SINCE: |
62e76326 | 1688 | /* append unless we added our own; |
1689 | * note: at most one client's ims header can pass through */ | |
b883b594 | 1690 | |
62e76326 | 1691 | if (!httpHeaderHas(hdr_out, HDR_IF_MODIFIED_SINCE)) |
1692 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); | |
1693 | ||
1694 | break; | |
1695 | ||
be753325 | 1696 | case HDR_MAX_FORWARDS: |
62e76326 | 1697 | if (orig_request->method == METHOD_TRACE) { |
1698 | const int hops = httpHeaderEntryGetInt(e); | |
1699 | ||
1700 | if (hops > 0) | |
1701 | httpHeaderPutInt(hdr_out, HDR_MAX_FORWARDS, hops - 1); | |
1702 | } | |
1703 | ||
1704 | break; | |
1705 | ||
be753325 | 1706 | case HDR_VIA: |
62e76326 | 1707 | /* If Via is disabled then forward any received header as-is */ |
1708 | ||
1709 | if (!Config.onoff.via) | |
1710 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); | |
1711 | ||
1712 | break; | |
1713 | ||
be753325 | 1714 | case HDR_RANGE: |
62e76326 | 1715 | |
be753325 | 1716 | case HDR_IF_RANGE: |
62e76326 | 1717 | |
be753325 | 1718 | case HDR_REQUEST_RANGE: |
62e76326 | 1719 | if (!we_do_ranges) |
1720 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); | |
1721 | ||
1722 | break; | |
1723 | ||
be753325 | 1724 | case HDR_PROXY_CONNECTION: |
62e76326 | 1725 | |
be753325 | 1726 | case HDR_CONNECTION: |
62e76326 | 1727 | |
be753325 | 1728 | case HDR_X_FORWARDED_FOR: |
62e76326 | 1729 | |
be753325 | 1730 | case HDR_CACHE_CONTROL: |
62e76326 | 1731 | /* append these after the loop if needed */ |
1732 | break; | |
1733 | ||
be753325 | 1734 | case HDR_FRONT_END_HTTPS: |
62e76326 | 1735 | if (!flags.front_end_https) |
1736 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); | |
1737 | ||
1738 | break; | |
1739 | ||
be753325 | 1740 | default: |
62e76326 | 1741 | /* pass on all other header fields */ |
1742 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); | |
528b2c61 | 1743 | } |
1744 | } | |
1745 | ||
e5ee81f0 | 1746 | bool |
1747 | HttpStateData::decideIfWeDoRanges (HttpRequest * orig_request) | |
528b2c61 | 1748 | { |
e5ee81f0 | 1749 | bool result = true; |
62e76326 | 1750 | /* decide if we want to do Ranges ourselves |
1751 | * and fetch the whole object now) | |
1752 | * We want to handle Ranges ourselves iff | |
1753 | * - we can actually parse client Range specs | |
1754 | * - the specs are expected to be simple enough (e.g. no out-of-order ranges) | |
1755 | * - reply will be cachable | |
1756 | * (If the reply will be uncachable we have to throw it away after | |
1757 | * serving this request, so it is better to forward ranges to | |
1758 | * the server and fetch only the requested content) | |
1759 | */ | |
1760 | ||
1761 | if (NULL == orig_request->range || !orig_request->flags.cachable | |
1762 | || orig_request->range->offsetLimitExceeded()) | |
e5ee81f0 | 1763 | result = false; |
62e76326 | 1764 | |
1765 | debug(11, 8) ("decideIfWeDoRanges: range specs: %p, cachable: %d; we_do_ranges: %d\n", | |
1766 | orig_request->range, orig_request->flags.cachable, result); | |
1767 | ||
1768 | return result; | |
528b2c61 | 1769 | } |
1770 | ||
62e76326 | 1771 | /* build request prefix and append it to a given MemBuf; |
99edd1c3 | 1772 | * return the length of the prefix */ |
9bc73deb | 1773 | mb_size_t |
e5ee81f0 | 1774 | HttpStateData::buildRequestPrefix(HttpRequest * request, |
1775 | HttpRequest * orig_request, | |
1776 | StoreEntry * entry, | |
1777 | MemBuf * mb, | |
1778 | http_state_flags flags) | |
99edd1c3 | 1779 | { |
1780 | const int offset = mb->size; | |
450e0c10 | 1781 | HttpVersion httpver(1, 0); |
2fe7eff9 | 1782 | mb->Printf("%s %s HTTP/%d.%d\r\n", |
1783 | RequestMethodStr[request->method], | |
1784 | request->urlpath.size() ? request->urlpath.buf() : "/", | |
1785 | httpver.major,httpver.minor); | |
99edd1c3 | 1786 | /* build and pack headers */ |
1787 | { | |
75faaa7a | 1788 | HttpHeader hdr(hoRequest); |
62e76326 | 1789 | Packer p; |
1790 | httpBuildRequestHeader(request, orig_request, entry, &hdr, flags); | |
1791 | packerToMemInit(&p, mb); | |
1792 | httpHeaderPackInto(&hdr, &p); | |
1793 | httpHeaderClean(&hdr); | |
1794 | packerClean(&p); | |
9d9d144b | 1795 | } |
99edd1c3 | 1796 | /* append header terminator */ |
2fe7eff9 | 1797 | mb->append(crlf, 2); |
99edd1c3 | 1798 | return mb->size - offset; |
6bf8443a | 1799 | } |
62e76326 | 1800 | |
090089c4 | 1801 | /* This will be called when connect completes. Write request. */ |
2bb867b5 | 1802 | void |
1803 | HttpStateData::sendRequest() | |
090089c4 | 1804 | { |
99edd1c3 | 1805 | MemBuf mb; |
901e234d | 1806 | CWCB *sendHeaderDone; |
090089c4 | 1807 | |
2bb867b5 | 1808 | debug(11, 5) ("httpSendRequest: FD %d: this %p.\n", fd, this); |
090089c4 | 1809 | |
2bb867b5 | 1810 | commSetTimeout(fd, Config.Timeout.lifetime, httpTimeout, this); |
1811 | flags.do_next_read = 1; | |
1812 | maybeReadData(); | |
21b92762 | 1813 | |
2bb867b5 | 1814 | if (orig_request->body_connection.getRaw() != NULL) |
1815 | sendHeaderDone = HttpStateData::SendRequestEntityWrapper; | |
7db8b16d | 1816 | else |
62e76326 | 1817 | sendHeaderDone = HttpStateData::SendComplete; |
54220df8 | 1818 | |
2bb867b5 | 1819 | if (_peer != NULL) { |
1820 | if (_peer->options.originserver) { | |
1821 | flags.proxying = 0; | |
1822 | flags.originpeer = 1; | |
62e76326 | 1823 | } else { |
2bb867b5 | 1824 | flags.proxying = 1; |
1825 | flags.originpeer = 0; | |
62e76326 | 1826 | } |
be753325 | 1827 | } else { |
2bb867b5 | 1828 | flags.proxying = 0; |
1829 | flags.originpeer = 0; | |
be753325 | 1830 | } |
62e76326 | 1831 | |
efb9218c | 1832 | /* |
99edd1c3 | 1833 | * Is keep-alive okay for all request methods? |
efb9218c | 1834 | */ |
efd900cb | 1835 | if (!Config.onoff.server_pconns) |
2bb867b5 | 1836 | flags.keepalive = 0; |
1837 | else if (_peer == NULL) | |
1838 | flags.keepalive = 1; | |
1839 | else if (_peer->stats.n_keepalives_sent < 10) | |
1840 | flags.keepalive = 1; | |
1841 | else if ((double) _peer->stats.n_keepalives_recv / | |
1842 | (double) _peer->stats.n_keepalives_sent > 0.50) | |
1843 | flags.keepalive = 1; | |
1844 | ||
1845 | if (_peer) { | |
1846 | if (neighborType(_peer, request) == PEER_SIBLING && | |
1847 | !_peer->options.allow_miss) | |
1848 | flags.only_if_cached = 1; | |
1849 | ||
1850 | flags.front_end_https = _peer->front_end_https; | |
a7ad6e4e | 1851 | } |
62e76326 | 1852 | |
2fe7eff9 | 1853 | mb.init(); |
e5ee81f0 | 1854 | buildRequestPrefix(request, orig_request, entry, &mb, flags); |
21b92762 | 1855 | debug(11, 6) ("httpSendRequest: FD %d:\n%s\n", fd, mb.buf); |
2bb867b5 | 1856 | comm_old_write_mbuf(fd, &mb, sendHeaderDone, this); |
090089c4 | 1857 | } |
b6a2f15e | 1858 | |
910169e5 | 1859 | void |
b6b6f466 | 1860 | httpStart(FwdState *fwd) |
603a02fd | 1861 | { |
910169e5 | 1862 | debug(11, 3) ("httpStart: \"%s %s\"\n", |
a3d50c30 | 1863 | RequestMethodStr[fwd->request->method], |
62e76326 | 1864 | storeUrl(fwd->entry)); |
a3d50c30 | 1865 | HttpStateData *httpState = new HttpStateData(fwd); |
62e76326 | 1866 | |
83704487 | 1867 | statCounter.server.all.requests++; |
62e76326 | 1868 | |
83704487 | 1869 | statCounter.server.http.requests++; |
62e76326 | 1870 | |
2bb867b5 | 1871 | httpState->sendRequest(); |
62e76326 | 1872 | |
b6a2f15e | 1873 | /* |
1874 | * We used to set the read timeout here, but not any more. | |
1875 | * Now its set in httpSendComplete() after the full request, | |
1876 | * including request body, has been written to the server. | |
1877 | */ | |
090089c4 | 1878 | } |
1879 | ||
2bb867b5 | 1880 | void |
1881 | HttpStateData::SendRequestEntityDoneWrapper(int fd, void *data) | |
54220df8 | 1882 | { |
e6ccf245 | 1883 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
2bb867b5 | 1884 | httpState->sendRequestEntityDone(fd); |
1885 | } | |
1886 | ||
1887 | void | |
1888 | HttpStateData::sendRequestEntityDone(int fd) | |
1889 | { | |
4fb35c3c | 1890 | ACLChecklist ch; |
43ae1d95 | 1891 | debug(11, 5) ("httpSendRequestEntityDone: FD %d\n", fd); |
2bb867b5 | 1892 | ch.request = requestLink(request); |
506768d9 | 1893 | |
1894 | if (Config.accessList.brokenPosts) | |
1895 | ch.accessList = cbdataReference(Config.accessList.brokenPosts); | |
62e76326 | 1896 | |
108d65b2 | 1897 | /* cbdataReferenceDone() happens in either fastCheck() or ~ACLCheckList */ |
1898 | ||
94439e4e | 1899 | if (!Config.accessList.brokenPosts) { |
62e76326 | 1900 | debug(11, 5) ("httpSendRequestEntityDone: No brokenPosts list\n"); |
2bb867b5 | 1901 | HttpStateData::SendComplete(fd, NULL, 0, COMM_OK, this); |
b448c119 | 1902 | } else if (!ch.fastCheck()) { |
62e76326 | 1903 | debug(11, 5) ("httpSendRequestEntityDone: didn't match brokenPosts\n"); |
2bb867b5 | 1904 | HttpStateData::SendComplete(fd, NULL, 0, COMM_OK, this); |
94439e4e | 1905 | } else { |
62e76326 | 1906 | debug(11, 2) ("httpSendRequestEntityDone: matched brokenPosts\n"); |
2bb867b5 | 1907 | comm_old_write(fd, "\r\n", 2, HttpStateData::SendComplete, this, NULL); |
54220df8 | 1908 | } |
94439e4e | 1909 | } |
1910 | ||
2bb867b5 | 1911 | void |
1912 | HttpStateData::RequestBodyHandlerWrapper(char *buf, ssize_t size, void *data) | |
94439e4e | 1913 | { |
9ed57c61 | 1914 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
2bb867b5 | 1915 | httpState->requestBodyHandler(buf, size); |
1916 | } | |
1917 | ||
1918 | void | |
1919 | HttpStateData::requestBodyHandler(char *buf, ssize_t size) | |
1920 | { | |
1921 | request_body_buf = NULL; | |
1922 | ||
1923 | if (eof || fd < 0) { | |
1924 | debugs(11, 1, HERE << "Transaction aborted while reading HTTP body"); | |
1925 | memFree8K(buf); | |
1926 | return; | |
1927 | } | |
62e76326 | 1928 | |
94439e4e | 1929 | if (size > 0) { |
2bb867b5 | 1930 | if (flags.headers_parsed && !flags.abuse_detected) { |
1931 | flags.abuse_detected = 1; | |
21b92762 | 1932 | debug(11, 1) ("httpSendRequestEntryDone: Likely proxy abuse detected '%s' -> '%s'\n", |
2bb867b5 | 1933 | inet_ntoa(orig_request->client_addr), |
1934 | storeUrl(entry)); | |
21b92762 | 1935 | |
2bb867b5 | 1936 | if (getReply()->sline.status == HTTP_INVALID_HEADER) { |
21b92762 | 1937 | memFree8K(buf); |
2bb867b5 | 1938 | comm_close(fd); |
21b92762 | 1939 | return; |
1940 | } | |
1941 | } | |
1942 | ||
2bb867b5 | 1943 | comm_old_write(fd, buf, size, SendRequestEntityWrapper, this, memFree8K); |
94439e4e | 1944 | } else if (size == 0) { |
62e76326 | 1945 | /* End of body */ |
1946 | memFree8K(buf); | |
2bb867b5 | 1947 | sendRequestEntityDone(fd); |
94439e4e | 1948 | } else { |
62e76326 | 1949 | /* Failed to get whole body, probably aborted */ |
1950 | memFree8K(buf); | |
2bb867b5 | 1951 | HttpStateData::SendComplete(fd, NULL, 0, COMM_ERR_CLOSING, this); |
b6a2f15e | 1952 | } |
376bb137 | 1953 | } |
1954 | ||
2bb867b5 | 1955 | void |
1956 | HttpStateData::SendRequestEntityWrapper(int fd, char *bufnotused, size_t size, comm_err_t errflag, void *data) | |
376bb137 | 1957 | { |
e6ccf245 | 1958 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
2bb867b5 | 1959 | httpState->sendRequestEntity(fd, size, errflag); |
1960 | } | |
1961 | ||
1962 | void | |
1963 | HttpStateData::sendRequestEntity(int fd, size_t size, comm_err_t errflag) | |
1964 | { | |
c3d63b2a | 1965 | debug(11, 5) ("httpSendRequestEntity: FD %d: size %d: errflag %d.\n", |
62e76326 | 1966 | fd, (int) size, errflag); |
1967 | ||
376bb137 | 1968 | if (size > 0) { |
62e76326 | 1969 | fd_bytes(fd, size, FD_WRITE); |
1970 | kb_incr(&statCounter.server.all.kbytes_out, size); | |
1971 | kb_incr(&statCounter.server.http.kbytes_out, size); | |
376bb137 | 1972 | } |
62e76326 | 1973 | |
376bb137 | 1974 | if (errflag == COMM_ERR_CLOSING) |
62e76326 | 1975 | return; |
1976 | ||
376bb137 | 1977 | if (errflag) { |
6cae5db1 | 1978 | ErrorState *err; |
4eb368f9 | 1979 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY); |
62e76326 | 1980 | err->xerrno = errno; |
2bb867b5 | 1981 | fwd->fail(err); |
62e76326 | 1982 | comm_close(fd); |
1983 | return; | |
376bb137 | 1984 | } |
62e76326 | 1985 | |
94439e4e | 1986 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1987 | comm_close(fd); |
1988 | return; | |
376bb137 | 1989 | } |
62e76326 | 1990 | |
2bb867b5 | 1991 | request_body_buf = (char *)memAllocate(MEM_8K_BUF); |
1992 | clientReadBody(orig_request, request_body_buf, 8192, RequestBodyHandlerWrapper, this); | |
54220df8 | 1993 | } |
ccf44862 | 1994 | |
1995 | void | |
450e0c10 | 1996 | httpBuildVersion(HttpVersion * version, unsigned int major, unsigned int minor) |
110eb4e5 | 1997 | { |
1998 | version->major = major; | |
1999 | version->minor = minor; | |
ccf44862 | 2000 | } |
2afaba07 | 2001 | |
2002 | #if ICAP_CLIENT | |
2003 | ||
2004 | static void | |
2005 | icapAclCheckDoneWrapper(ICAPServiceRep::Pointer service, void *data) | |
2006 | { | |
2007 | HttpStateData *http = (HttpStateData *)data; | |
2008 | http->icapAclCheckDone(service); | |
2009 | } | |
2010 | ||
2011 | void | |
2012 | HttpStateData::icapAclCheckDone(ICAPServiceRep::Pointer service) | |
2013 | { | |
2014 | icapAccessCheckPending = false; | |
2015 | ||
2016 | if (service == NULL) { | |
2017 | // handle case where no service is selected; | |
2018 | storeEntryReplaceObject(entry, reply); | |
2019 | ||
2020 | /* Note storeEntryReplaceObject() consumes reply, so we cannot use it */ | |
2021 | reply = NULL; | |
2022 | ||
2023 | haveParsedReplyHeaders(); | |
2024 | processReplyBody(); | |
2025 | ||
2026 | if (eof == 1) | |
2027 | transactionComplete(); | |
2028 | ||
2029 | return; | |
2030 | } | |
2031 | ||
2032 | if (doIcap(service) < 0) { | |
2033 | /* | |
2034 | * XXX Maybe instead of an error page we should | |
2035 | * handle the reply normally (without ICAP). | |
2036 | */ | |
2037 | ErrorState *err = errorCon(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR); | |
2038 | err->xerrno = errno; | |
2039 | err->request = requestLink(orig_request); | |
2040 | errorAppendEntry(entry, err); | |
2041 | comm_close(fd); | |
2042 | return; | |
2043 | } | |
2044 | ||
2045 | icap->startRespMod(this, request, reply); | |
2046 | processReplyBody(); | |
2047 | } | |
2048 | ||
2049 | /* | |
2050 | * Initiate an ICAP transaction. Return 0 if all is well, or -1 upon error. | |
2051 | * Caller will handle error condition by generating a Squid error message | |
2052 | * or take other action. | |
2053 | */ | |
2054 | int | |
2055 | HttpStateData::doIcap(ICAPServiceRep::Pointer service) | |
2056 | { | |
2057 | debug(11,5)("HttpStateData::doIcap() called\n"); | |
2058 | assert(NULL == icap); | |
2059 | icap = new ICAPClientRespmodPrecache(service); | |
2060 | (void) cbdataReference(icap); | |
2061 | return 0; | |
2062 | } | |
2063 | ||
2064 | /* | |
2065 | * Called by ICAPClientRespmodPrecache when it has space available for us. | |
2066 | */ | |
2067 | void | |
2068 | HttpStateData::icapSpaceAvailable() | |
2069 | { | |
2070 | debug(11,5)("HttpStateData::icapSpaceAvailable() called\n"); | |
2071 | maybeReadData(); | |
2072 | } | |
2073 | ||
2074 | void | |
2075 | HttpStateData::takeAdaptedHeaders(HttpReply *rep) | |
2076 | { | |
2077 | debug(11,5)("HttpStateData::takeAdaptedHeaders() called\n"); | |
2078 | ||
2079 | if (!entry->isAccepting()) { | |
2080 | debug(11,5)("\toops, entry is not Accepting!\n"); | |
2081 | icap->ownerAbort(); | |
2082 | return; | |
2083 | } | |
2084 | ||
b559db5d | 2085 | assert (rep); |
2afaba07 | 2086 | storeEntryReplaceObject(entry, rep); |
2087 | ||
2088 | /* | |
2089 | * After calling storeEntryReplaceObject() we give up control | |
2090 | * of the rep and this->reply pointers. | |
2091 | */ | |
2092 | rep = NULL; | |
2093 | ||
2094 | haveParsedReplyHeaders(); | |
2095 | ||
2096 | debug(11,5)("HttpStateData::takeAdaptedHeaders() finished\n"); | |
2097 | } | |
2098 | ||
2099 | void | |
2100 | HttpStateData::takeAdaptedBody(MemBuf *buf) | |
2101 | { | |
2102 | debug(11,5)("HttpStateData::takeAdaptedBody() called\n"); | |
1dd6edf2 | 2103 | debug(11,5)("\t%d bytes\n", (int) buf->contentSize()); |
2afaba07 | 2104 | debug(11,5)("\t%d is current offset\n", (int)currentOffset); |
2105 | ||
2106 | if (!entry->isAccepting()) { | |
2107 | debug(11,5)("\toops, entry is not Accepting!\n"); | |
2108 | icap->ownerAbort(); | |
2109 | return; | |
2110 | } | |
2111 | ||
2112 | entry->write(StoreIOBuffer(buf, currentOffset)); // write everything | |
2113 | currentOffset += buf->contentSize(); | |
2114 | buf->consume(buf->contentSize()); // consume everything written | |
2115 | } | |
2116 | ||
2117 | void | |
2118 | HttpStateData::doneAdapting() | |
2119 | { | |
2120 | debug(11,5)("HttpStateData::doneAdapting() called\n"); | |
2121 | ||
2122 | if (!entry->isAccepting()) { | |
2123 | debug(11,5)("\toops, entry is not Accepting!\n"); | |
2124 | icap->ownerAbort(); | |
2125 | } else { | |
b6b6f466 | 2126 | fwd->complete(); |
2afaba07 | 2127 | } |
2128 | ||
6965ab28 | 2129 | /* |
2130 | * ICAP is done, so we don't need this any more. | |
2131 | */ | |
2132 | delete icap; | |
2133 | ||
2134 | cbdataReferenceDone(icap); | |
2135 | ||
b559db5d | 2136 | if (fd >= 0) |
2137 | comm_close(fd); | |
2138 | else | |
2139 | httpStateFree(fd, this); | |
2afaba07 | 2140 | } |
2141 | ||
2142 | void | |
2143 | HttpStateData::abortAdapting() | |
2144 | { | |
2145 | debug(11,5)("HttpStateData::abortAdapting() called\n"); | |
2146 | ||
b559db5d | 2147 | /* |
2148 | * ICAP has given up, we're done with it too | |
2149 | */ | |
2150 | delete icap; | |
2151 | cbdataReferenceDone(icap); | |
2152 | ||
2afaba07 | 2153 | if (entry->isEmpty()) { |
2154 | ErrorState *err; | |
2155 | err = errorCon(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR); | |
2156 | err->request = requestLink((HttpRequest *) request); | |
2157 | err->xerrno = errno; | |
b6b6f466 | 2158 | fwd->fail( err); |
2159 | fwd->dontRetry(true); | |
2afaba07 | 2160 | flags.do_next_read = 0; |
2161 | } | |
2162 | ||
6c2d6c93 | 2163 | if (fd >= 0) { |
2164 | comm_close(fd); | |
2165 | } else { | |
2166 | httpStateFree(-1, this); // deletes this | |
2167 | } | |
2afaba07 | 2168 | } |
2169 | ||
2170 | #endif |