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da2b3a17 | 1 | |
30a4f2a8 | 2 | /* |
253caccb | 3 | * $Id: http.cc,v 1.484 2006/01/25 17:41:23 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 | |
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); | |
85 | orig_request = requestLink(fwd->request); | |
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 | ||
253caccb | 111 | requestUnlink(request); |
112 | ||
a3d50c30 | 113 | request = requestLink(proxy_req); |
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 | /* |
140 | * don't forget about ~ServerStateData() | |
141 | */ | |
142 | ||
2afaba07 | 143 | if (request_body_buf) { |
144 | if (orig_request->body_connection.getRaw()) { | |
145 | clientAbortBody(orig_request); | |
9ea12fca | 146 | } |
21b92762 | 147 | |
2afaba07 | 148 | if (request_body_buf) { |
149 | memFree(request_body_buf, MEM_8K_BUF); | |
150 | request_body_buf = NULL; | |
21b92762 | 151 | } |
152 | } | |
153 | ||
2afaba07 | 154 | if (!readBuf->isNull()) |
155 | readBuf->clean(); | |
62e76326 | 156 | |
2afaba07 | 157 | delete readBuf; |
158 | ||
2afaba07 | 159 | requestUnlink(orig_request); |
160 | ||
2afaba07 | 161 | orig_request = NULL; |
162 | ||
2bb867b5 | 163 | debugs(11,5,HERE << "HttpStateData " << this << " destroyed"); |
2afaba07 | 164 | } |
165 | ||
166 | static void | |
167 | httpStateFree(int fd, void *data) | |
168 | { | |
169 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
170 | debug(11,5)("httpStateFree: FD %d, httpState=%p\n", fd, data); | |
171 | ||
172 | if (httpState) | |
173 | delete httpState; | |
f5558c95 | 174 | } |
175 | ||
b8d8561b | 176 | int |
75e88d56 | 177 | httpCachable(method_t method) |
090089c4 | 178 | { |
090089c4 | 179 | /* GET and HEAD are cachable. Others are not. */ |
62e76326 | 180 | |
6eb42cae | 181 | if (method != METHOD_GET && method != METHOD_HEAD) |
62e76326 | 182 | return 0; |
183 | ||
090089c4 | 184 | /* else cachable */ |
185 | return 1; | |
186 | } | |
187 | ||
b8d8561b | 188 | static void |
5c5783a2 | 189 | httpTimeout(int fd, void *data) |
090089c4 | 190 | { |
e6ccf245 | 191 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
593c9a75 | 192 | StoreEntry *entry = httpState->entry; |
9fb13bb6 | 193 | debug(11, 4) ("httpTimeout: FD %d: '%s'\n", fd, storeUrl(entry)); |
62e76326 | 194 | |
12158bdc | 195 | if (entry->store_status == STORE_PENDING) { |
b6b6f466 | 196 | httpState->fwd->fail(errorCon(ERR_READ_TIMEOUT, HTTP_GATEWAY_TIMEOUT)); |
9b312a19 | 197 | } |
62e76326 | 198 | |
0d4d4170 | 199 | comm_close(fd); |
090089c4 | 200 | } |
201 | ||
30a4f2a8 | 202 | /* This object can be cached for a long time */ |
b8d8561b | 203 | static void |
204 | httpMakePublic(StoreEntry * entry) | |
30a4f2a8 | 205 | { |
d46a87a8 | 206 | if (EBIT_TEST(entry->flags, ENTRY_CACHABLE)) |
62e76326 | 207 | storeSetPublicKey(entry); |
30a4f2a8 | 208 | } |
209 | ||
210 | /* This object should never be cached at all */ | |
b8d8561b | 211 | static void |
212 | httpMakePrivate(StoreEntry * entry) | |
30a4f2a8 | 213 | { |
30a4f2a8 | 214 | storeExpireNow(entry); |
30a4f2a8 | 215 | storeReleaseRequest(entry); /* delete object when not used */ |
f3e570e9 | 216 | /* storeReleaseRequest clears ENTRY_CACHABLE flag */ |
30a4f2a8 | 217 | } |
218 | ||
219 | /* This object may be negatively cached */ | |
b8d8561b | 220 | static void |
221 | httpCacheNegatively(StoreEntry * entry) | |
30a4f2a8 | 222 | { |
79b5cc5f | 223 | storeNegativeCache(entry); |
62e76326 | 224 | |
d46a87a8 | 225 | if (EBIT_TEST(entry->flags, ENTRY_CACHABLE)) |
62e76326 | 226 | storeSetPublicKey(entry); |
30a4f2a8 | 227 | } |
228 | ||
f9cece6e | 229 | static void |
230 | httpMaybeRemovePublic(StoreEntry * e, http_status status) | |
231 | { | |
62e76326 | 232 | |
233 | int remove | |
234 | = 0; | |
235 | ||
7e3ce7b9 | 236 | int forbidden = 0; |
62e76326 | 237 | |
f9cece6e | 238 | StoreEntry *pe; |
62e76326 | 239 | |
d46a87a8 | 240 | if (!EBIT_TEST(e->flags, KEY_PRIVATE)) |
62e76326 | 241 | return; |
242 | ||
f9cece6e | 243 | switch (status) { |
62e76326 | 244 | |
f9cece6e | 245 | case HTTP_OK: |
62e76326 | 246 | |
f9cece6e | 247 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 248 | |
f9cece6e | 249 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 250 | |
f9cece6e | 251 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 252 | |
f9cece6e | 253 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 254 | |
f9cece6e | 255 | case HTTP_GONE: |
62e76326 | 256 | |
7e3ce7b9 | 257 | case HTTP_NOT_FOUND: |
62e76326 | 258 | |
259 | remove | |
260 | = 1; | |
261 | ||
262 | break; | |
263 | ||
7e3ce7b9 | 264 | case HTTP_FORBIDDEN: |
62e76326 | 265 | |
7e3ce7b9 | 266 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 267 | forbidden = 1; |
268 | ||
269 | break; | |
270 | ||
f9cece6e | 271 | #if WORK_IN_PROGRESS |
62e76326 | 272 | |
c8fd0193 | 273 | case HTTP_UNAUTHORIZED: |
62e76326 | 274 | forbidden = 1; |
275 | ||
276 | break; | |
277 | ||
f9cece6e | 278 | #endif |
62e76326 | 279 | |
f9cece6e | 280 | default: |
7e3ce7b9 | 281 | #if QUESTIONABLE |
62e76326 | 282 | /* |
283 | * Any 2xx response should eject previously cached entities... | |
284 | */ | |
abb929f0 | 285 | |
62e76326 | 286 | if (status >= 200 && status < 300) |
287 | remove | |
288 | = 1; | |
289 | ||
7e3ce7b9 | 290 | #endif |
62e76326 | 291 | |
292 | break; | |
f9cece6e | 293 | } |
62e76326 | 294 | |
295 | if (!remove | |
296 | && !forbidden) | |
297 | return; | |
298 | ||
f9cece6e | 299 | assert(e->mem_obj); |
62e76326 | 300 | |
f66a9ef4 | 301 | if (e->mem_obj->request) |
62e76326 | 302 | pe = storeGetPublicByRequest(e->mem_obj->request); |
f66a9ef4 | 303 | else |
62e76326 | 304 | pe = storeGetPublic(e->mem_obj->url, e->mem_obj->method); |
305 | ||
f66a9ef4 | 306 | if (pe != NULL) { |
62e76326 | 307 | assert(e != pe); |
308 | storeRelease(pe); | |
0856d155 | 309 | } |
62e76326 | 310 | |
7e3ce7b9 | 311 | /* |
312 | * Also remove any cached HEAD response in case the object has | |
313 | * changed. | |
314 | */ | |
f66a9ef4 | 315 | if (e->mem_obj->request) |
62e76326 | 316 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_HEAD); |
f66a9ef4 | 317 | else |
62e76326 | 318 | pe = storeGetPublic(e->mem_obj->url, METHOD_HEAD); |
319 | ||
f66a9ef4 | 320 | if (pe != NULL) { |
62e76326 | 321 | assert(e != pe); |
322 | storeRelease(pe); | |
7e3ce7b9 | 323 | } |
62e76326 | 324 | |
7e3ce7b9 | 325 | if (forbidden) |
62e76326 | 326 | return; |
327 | ||
7e3ce7b9 | 328 | switch (e->mem_obj->method) { |
62e76326 | 329 | |
7e3ce7b9 | 330 | case METHOD_PUT: |
62e76326 | 331 | |
7e3ce7b9 | 332 | case METHOD_DELETE: |
62e76326 | 333 | |
7e3ce7b9 | 334 | case METHOD_PROPPATCH: |
62e76326 | 335 | |
7e3ce7b9 | 336 | case METHOD_MKCOL: |
62e76326 | 337 | |
7e3ce7b9 | 338 | case METHOD_MOVE: |
62e76326 | 339 | |
42b51993 | 340 | case METHOD_BMOVE: |
62e76326 | 341 | |
42b51993 | 342 | case METHOD_BDELETE: |
62e76326 | 343 | /* |
344 | * Remove any cached GET object if it is beleived that the | |
345 | * object may have changed as a result of other methods | |
346 | */ | |
347 | ||
348 | if (e->mem_obj->request) | |
349 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_GET); | |
350 | else | |
351 | pe = storeGetPublic(e->mem_obj->url, METHOD_GET); | |
352 | ||
353 | if (pe != NULL) { | |
354 | assert(e != pe); | |
355 | storeRelease(pe); | |
356 | } | |
357 | ||
358 | break; | |
359 | ||
c8be6d7b | 360 | default: |
62e76326 | 361 | /* Keep GCC happy. The methods above are all mutating HTTP methods |
362 | */ | |
363 | break; | |
0856d155 | 364 | } |
f9cece6e | 365 | } |
366 | ||
43ae1d95 | 367 | void |
368 | HttpStateData::processSurrogateControl(HttpReply *reply) | |
369 | { | |
370 | #if ESI | |
371 | ||
372 | if (request->flags.accelerated && reply->surrogate_control) { | |
373 | HttpHdrScTarget *sctusable = | |
374 | httpHdrScGetMergedTarget(reply->surrogate_control, | |
375 | Config.Accel.surrogate_id); | |
376 | ||
377 | if (sctusable) { | |
378 | if (EBIT_TEST(sctusable->mask, SC_NO_STORE) || | |
379 | (Config.onoff.surrogate_is_remote | |
380 | && EBIT_TEST(sctusable->mask, SC_NO_STORE_REMOTE))) { | |
381 | surrogateNoStore = true; | |
382 | httpMakePrivate(entry); | |
383 | } | |
384 | ||
385 | /* The HttpHeader logic cannot tell if the header it's parsing is a reply to an | |
386 | * accelerated request or not... | |
387 | * Still, this is an abtraction breach. - RC | |
388 | */ | |
389 | if (sctusable->max_age != -1) { | |
390 | if (sctusable->max_age < sctusable->max_stale) | |
391 | reply->expires = reply->date + sctusable->max_age; | |
392 | else | |
393 | reply->expires = reply->date + sctusable->max_stale; | |
394 | ||
395 | /* And update the timestamps */ | |
396 | storeTimestampsSet(entry); | |
397 | } | |
398 | ||
399 | /* We ignore cache-control directives as per the Surrogate specification */ | |
400 | ignoreCacheControl = true; | |
401 | ||
402 | httpHdrScTargetDestroy(sctusable); | |
403 | } | |
404 | } | |
405 | ||
406 | #endif | |
407 | } | |
408 | ||
924f73bc | 409 | int |
410 | HttpStateData::cacheableReply() | |
c54e9052 | 411 | { |
2afaba07 | 412 | HttpReply const *rep = getReply(); |
528b2c61 | 413 | HttpHeader const *hdr = &rep->header; |
d8b249ef | 414 | const int cc_mask = (rep->cache_control) ? rep->cache_control->mask : 0; |
c68e9c6b | 415 | const char *v; |
38f9c547 | 416 | #if HTTP_VIOLATIONS |
62e76326 | 417 | |
38f9c547 | 418 | const refresh_t *R = NULL; |
419 | #endif | |
43ae1d95 | 420 | |
38f9c547 | 421 | if (surrogateNoStore) |
62e76326 | 422 | return 0; |
423 | ||
924f73bc | 424 | if (!ignoreCacheControl) { |
38f9c547 | 425 | if (EBIT_TEST(cc_mask, CC_PRIVATE)) { |
426 | #if HTTP_VIOLATIONS | |
43ae1d95 | 427 | |
38f9c547 | 428 | if (!R) |
429 | R = refreshLimits(entry->mem_obj->url); | |
43ae1d95 | 430 | |
38f9c547 | 431 | if (R && !R->flags.ignore_private) |
432 | #endif | |
433 | ||
434 | return 0; | |
435 | } | |
436 | ||
437 | if (EBIT_TEST(cc_mask, CC_NO_CACHE)) { | |
438 | #if HTTP_VIOLATIONS | |
439 | ||
440 | if (!R) | |
441 | R = refreshLimits(entry->mem_obj->url); | |
442 | ||
443 | if (R && !R->flags.ignore_no_cache) | |
444 | #endif | |
445 | ||
446 | return 0; | |
447 | } | |
448 | ||
449 | if (EBIT_TEST(cc_mask, CC_NO_STORE)) { | |
450 | #if HTTP_VIOLATIONS | |
451 | ||
452 | if (!R) | |
453 | R = refreshLimits(entry->mem_obj->url); | |
454 | ||
455 | if (R && !R->flags.ignore_no_store) | |
456 | #endif | |
457 | ||
458 | return 0; | |
459 | } | |
43ae1d95 | 460 | } |
461 | ||
924f73bc | 462 | if (request->flags.auth) { |
62e76326 | 463 | /* |
464 | * Responses to requests with authorization may be cached | |
465 | * only if a Cache-Control: public reply header is present. | |
466 | * RFC 2068, sec 14.9.4 | |
467 | */ | |
468 | ||
38f9c547 | 469 | if (!EBIT_TEST(cc_mask, CC_PUBLIC)) { |
470 | #if HTTP_VIOLATIONS | |
471 | ||
472 | if (!R) | |
473 | R = refreshLimits(entry->mem_obj->url); | |
474 | ||
475 | if (R && !R->flags.ignore_auth) | |
476 | #endif | |
477 | ||
478 | return 0; | |
479 | } | |
a6dfe2d9 | 480 | } |
62e76326 | 481 | |
c68e9c6b | 482 | /* Pragma: no-cache in _replies_ is not documented in HTTP, |
483 | * but servers like "Active Imaging Webcast/2.0" sure do use it */ | |
484 | if (httpHeaderHas(hdr, HDR_PRAGMA)) { | |
62e76326 | 485 | String s = httpHeaderGetList(hdr, HDR_PRAGMA); |
486 | const int no_cache = strListIsMember(&s, "no-cache", ','); | |
487 | s.clean(); | |
488 | ||
38f9c547 | 489 | if (no_cache) { |
490 | #if HTTP_VIOLATIONS | |
491 | ||
492 | if (!R) | |
493 | R = refreshLimits(entry->mem_obj->url); | |
494 | ||
495 | if (R && !R->flags.ignore_no_cache) | |
496 | #endif | |
497 | ||
498 | return 0; | |
499 | } | |
c68e9c6b | 500 | } |
62e76326 | 501 | |
c68e9c6b | 502 | /* |
503 | * The "multipart/x-mixed-replace" content type is used for | |
504 | * continuous push replies. These are generally dynamic and | |
505 | * probably should not be cachable | |
506 | */ | |
507 | if ((v = httpHeaderGetStr(hdr, HDR_CONTENT_TYPE))) | |
62e76326 | 508 | if (!strncasecmp(v, "multipart/x-mixed-replace", 25)) |
509 | return 0; | |
510 | ||
2afaba07 | 511 | switch (getReply()->sline.status) { |
62e76326 | 512 | /* Responses that are cacheable */ |
513 | ||
19a04dac | 514 | case HTTP_OK: |
62e76326 | 515 | |
19a04dac | 516 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 517 | |
19a04dac | 518 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 519 | |
19a04dac | 520 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 521 | |
19a04dac | 522 | case HTTP_GONE: |
62e76326 | 523 | /* |
524 | * Don't cache objects that need to be refreshed on next request, | |
525 | * unless we know how to refresh it. | |
526 | */ | |
527 | ||
924f73bc | 528 | if (!refreshIsCachable(entry)) |
62e76326 | 529 | return 0; |
530 | ||
531 | /* don't cache objects from peers w/o LMT, Date, or Expires */ | |
532 | /* check that is it enough to check headers @?@ */ | |
533 | if (rep->date > -1) | |
534 | return 1; | |
535 | else if (rep->last_modified > -1) | |
536 | return 1; | |
924f73bc | 537 | else if (!_peer) |
62e76326 | 538 | return 1; |
539 | ||
540 | /* @?@ (here and 302): invalid expires header compiles to squid_curtime */ | |
541 | else if (rep->expires > -1) | |
542 | return 1; | |
543 | else | |
544 | return 0; | |
545 | ||
546 | /* NOTREACHED */ | |
547 | break; | |
548 | ||
549 | /* Responses that only are cacheable if the server says so */ | |
550 | ||
19a04dac | 551 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 552 | if (rep->expires > -1) |
553 | return 1; | |
554 | else | |
555 | return 0; | |
556 | ||
557 | /* NOTREACHED */ | |
558 | break; | |
559 | ||
560 | /* Errors can be negatively cached */ | |
561 | ||
19a04dac | 562 | case HTTP_NO_CONTENT: |
62e76326 | 563 | |
19a04dac | 564 | case HTTP_USE_PROXY: |
62e76326 | 565 | |
19a04dac | 566 | case HTTP_BAD_REQUEST: |
62e76326 | 567 | |
19a04dac | 568 | case HTTP_FORBIDDEN: |
62e76326 | 569 | |
19a04dac | 570 | case HTTP_NOT_FOUND: |
62e76326 | 571 | |
19a04dac | 572 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 573 | |
19a04dac | 574 | case HTTP_REQUEST_URI_TOO_LARGE: |
62e76326 | 575 | |
19a04dac | 576 | case HTTP_INTERNAL_SERVER_ERROR: |
62e76326 | 577 | |
19a04dac | 578 | case HTTP_NOT_IMPLEMENTED: |
62e76326 | 579 | |
19a04dac | 580 | case HTTP_BAD_GATEWAY: |
62e76326 | 581 | |
19a04dac | 582 | case HTTP_SERVICE_UNAVAILABLE: |
62e76326 | 583 | |
19a04dac | 584 | case HTTP_GATEWAY_TIMEOUT: |
62e76326 | 585 | return -1; |
586 | ||
587 | /* NOTREACHED */ | |
588 | break; | |
589 | ||
590 | /* Some responses can never be cached */ | |
591 | ||
0cdcddb9 | 592 | case HTTP_PARTIAL_CONTENT: /* Not yet supported */ |
62e76326 | 593 | |
19a04dac | 594 | case HTTP_SEE_OTHER: |
62e76326 | 595 | |
19a04dac | 596 | case HTTP_NOT_MODIFIED: |
62e76326 | 597 | |
19a04dac | 598 | case HTTP_UNAUTHORIZED: |
62e76326 | 599 | |
19a04dac | 600 | case HTTP_PROXY_AUTHENTICATION_REQUIRED: |
62e76326 | 601 | |
0cdcddb9 | 602 | case HTTP_INVALID_HEADER: /* Squid header parsing error */ |
4eb368f9 | 603 | |
604 | case HTTP_HEADER_TOO_LARGE: | |
62e76326 | 605 | return 0; |
606 | ||
c54e9052 | 607 | default: /* Unknown status code */ |
924f73bc | 608 | debug (11,0)("HttpStateData::cacheableReply: unknown http status code in reply\n"); |
62e76326 | 609 | |
610 | return 0; | |
611 | ||
612 | /* NOTREACHED */ | |
613 | break; | |
c54e9052 | 614 | } |
62e76326 | 615 | |
79d39a72 | 616 | /* NOTREACHED */ |
c54e9052 | 617 | } |
090089c4 | 618 | |
f66a9ef4 | 619 | /* |
620 | * For Vary, store the relevant request headers as | |
621 | * virtual headers in the reply | |
622 | * Returns false if the variance cannot be stored | |
623 | */ | |
624 | const char * | |
190154cf | 625 | httpMakeVaryMark(HttpRequest * request, HttpReply const * reply) |
f66a9ef4 | 626 | { |
f66a9ef4 | 627 | String vary, hdr; |
628 | const char *pos = NULL; | |
629 | const char *item; | |
630 | const char *value; | |
631 | int ilen; | |
528b2c61 | 632 | static String vstr; |
f66a9ef4 | 633 | |
528b2c61 | 634 | vstr.clean(); |
f66a9ef4 | 635 | vary = httpHeaderGetList(&reply->header, HDR_VARY); |
62e76326 | 636 | |
f66a9ef4 | 637 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 638 | char *name = (char *)xmalloc(ilen + 1); |
639 | xstrncpy(name, item, ilen + 1); | |
640 | Tolower(name); | |
9776e3cc | 641 | |
642 | if (strcmp(name, "*") == 0) { | |
643 | /* Can not handle "Vary: *" withtout ETag support */ | |
644 | safe_free(name); | |
645 | vstr.clean(); | |
646 | break; | |
647 | } | |
648 | ||
62e76326 | 649 | strListAdd(&vstr, name, ','); |
650 | hdr = httpHeaderGetByName(&request->header, name); | |
651 | safe_free(name); | |
652 | value = hdr.buf(); | |
653 | ||
654 | if (value) { | |
655 | value = rfc1738_escape_part(value); | |
656 | vstr.append("=\"", 2); | |
657 | vstr.append(value); | |
658 | vstr.append("\"", 1); | |
659 | } | |
660 | ||
661 | hdr.clean(); | |
f66a9ef4 | 662 | } |
62e76326 | 663 | |
528b2c61 | 664 | vary.clean(); |
f66a9ef4 | 665 | #if X_ACCELERATOR_VARY |
62e76326 | 666 | |
aa38be4a | 667 | pos = NULL; |
f66a9ef4 | 668 | vary = httpHeaderGetList(&reply->header, HDR_X_ACCELERATOR_VARY); |
62e76326 | 669 | |
f66a9ef4 | 670 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 671 | char *name = (char *)xmalloc(ilen + 1); |
672 | xstrncpy(name, item, ilen + 1); | |
673 | Tolower(name); | |
674 | strListAdd(&vstr, name, ','); | |
675 | hdr = httpHeaderGetByName(&request->header, name); | |
676 | safe_free(name); | |
677 | value = hdr.buf(); | |
678 | ||
679 | if (value) { | |
680 | value = rfc1738_escape_part(value); | |
681 | vstr.append("=\"", 2); | |
682 | vstr.append(value); | |
683 | vstr.append("\"", 1); | |
684 | } | |
685 | ||
686 | hdr.clean(); | |
f66a9ef4 | 687 | } |
62e76326 | 688 | |
528b2c61 | 689 | vary.clean(); |
f66a9ef4 | 690 | #endif |
62e76326 | 691 | |
528b2c61 | 692 | debug(11, 3) ("httpMakeVaryMark: %s\n", vstr.buf()); |
693 | return vstr.buf(); | |
f66a9ef4 | 694 | } |
695 | ||
4eb368f9 | 696 | void |
697 | HttpStateData::failReply(HttpReply *reply, http_status const & status) | |
698 | { | |
699 | reply->sline.version = HttpVersion(1, 0); | |
700 | reply->sline.status = status; | |
701 | storeEntryReplaceObject (entry, reply); | |
702 | ||
703 | if (eof == 1) { | |
2afaba07 | 704 | transactionComplete(); |
4eb368f9 | 705 | } |
706 | } | |
707 | ||
2afaba07 | 708 | void |
709 | HttpStateData::keepaliveAccounting(HttpReply *reply) | |
710 | { | |
711 | if (flags.keepalive) | |
712 | if (_peer) | |
713 | _peer->stats.n_keepalives_sent++; | |
714 | ||
715 | if (reply->keep_alive) { | |
716 | if (_peer) | |
717 | _peer->stats.n_keepalives_recv++; | |
718 | ||
719 | if (Config.onoff.detect_broken_server_pconns && reply->bodySize(request->method) == -1) { | |
720 | debug(11, 1) ("keepaliveAccounting: Impossible keep-alive header from '%s'\n", storeUrl(entry)); | |
721 | // debug(11, 2) ("GOT HTTP REPLY HDR:\n---------\n%s\n----------\n", readBuf->content()); | |
722 | flags.keepalive_broken = 1; | |
723 | } | |
724 | } | |
725 | } | |
726 | ||
727 | void | |
728 | HttpStateData::checkDateSkew(HttpReply *reply) | |
729 | { | |
730 | if (reply->date > -1 && !_peer) { | |
731 | int skew = abs((int)(reply->date - squid_curtime)); | |
732 | ||
733 | if (skew > 86400) | |
734 | debug(11, 3) ("%s's clock is skewed by %d seconds!\n", | |
735 | request->host, skew); | |
736 | } | |
737 | } | |
738 | ||
739 | /* | |
4eb368f9 | 740 | * This creates the error page itself.. its likely |
741 | * that the forward ported reply header max size patch | |
742 | * generates non http conformant error pages - in which | |
743 | * case the errors where should be 'BAD_GATEWAY' etc | |
744 | */ | |
b8d8561b | 745 | void |
2afaba07 | 746 | HttpStateData::processReplyHeader() |
f5558c95 | 747 | { |
528b2c61 | 748 | /* Creates a blank header. If this routine is made incremental, this will |
749 | * not do | |
750 | */ | |
4a56ee8d | 751 | HttpReply *newrep = new HttpReply; |
82384411 | 752 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
2afaba07 | 753 | debug(11, 3) ("processReplyHeader: key '%s'\n", entry->getMD5Text()); |
62e76326 | 754 | |
1a98175f | 755 | assert(!flags.headers_parsed); |
62e76326 | 756 | |
2afaba07 | 757 | http_status error = HTTP_STATUS_NONE; |
62e76326 | 758 | |
4a56ee8d | 759 | const bool parsed = newrep->parse(readBuf, eof, &error); |
62e76326 | 760 | |
2afaba07 | 761 | if (!parsed && error > 0) { // unrecoverable parsing error |
762 | debugs(11, 3, "processReplyHeader: Non-HTTP-compliant header: '" << readBuf->content() << "'"); | |
1a98175f | 763 | flags.headers_parsed = 1; |
2afaba07 | 764 | // negated result yields http_status |
4a56ee8d | 765 | failReply (newrep, error); |
82384411 | 766 | ctx_exit(ctx); |
4eb368f9 | 767 | return; |
768 | } | |
62e76326 | 769 | |
2afaba07 | 770 | if (!parsed) { // need more data |
771 | assert(!error); | |
772 | assert(!eof); | |
4a56ee8d | 773 | delete newrep; |
82384411 | 774 | ctx_exit(ctx); |
62e76326 | 775 | return; |
f5558c95 | 776 | } |
62e76326 | 777 | |
4a56ee8d | 778 | reply = newrep->lock() |
779 | ||
780 | ; | |
781 | ||
9bc73deb | 782 | debug(11, 9) ("GOT HTTP REPLY HDR:\n---------\n%s\n----------\n", |
2afaba07 | 783 | readBuf->content()); |
4eb368f9 | 784 | |
6965ab28 | 785 | readBuf->consume(headersEnd(readBuf->content(), readBuf->contentSize())); |
4a56ee8d | 786 | |
6965ab28 | 787 | flags.headers_parsed = 1; |
788 | ||
2afaba07 | 789 | keepaliveAccounting(reply); |
47ac2ebe | 790 | |
2afaba07 | 791 | checkDateSkew(reply); |
47ac2ebe | 792 | |
43ae1d95 | 793 | processSurrogateControl (reply); |
528b2c61 | 794 | |
795 | /* TODO: IF the reply is a 1.0 reply, AND it has a Connection: Header | |
796 | * Parse the header and remove all referenced headers | |
797 | */ | |
798 | ||
2afaba07 | 799 | #if ICAP_CLIENT |
800 | ||
ab7ac359 | 801 | if (TheICAPConfig.onoff) { |
2afaba07 | 802 | ICAPAccessCheck *icap_access_check = |
803 | new ICAPAccessCheck(ICAP::methodRespmod, ICAP::pointPreCache, request, reply, icapAclCheckDoneWrapper, this); | |
804 | ||
805 | icapAccessCheckPending = true; | |
806 | icap_access_check->check(); // will eventually delete self | |
807 | ctx_exit(ctx); | |
808 | return; | |
809 | } | |
ab7ac359 | 810 | |
2afaba07 | 811 | #endif |
812 | ||
528b2c61 | 813 | storeEntryReplaceObject(entry, reply); |
2afaba07 | 814 | |
2afaba07 | 815 | haveParsedReplyHeaders(); |
816 | ||
817 | if (eof == 1) { | |
818 | transactionComplete(); | |
819 | } | |
820 | ||
821 | ctx_exit(ctx); | |
822 | } | |
823 | ||
824 | /* | |
825 | * This function used to be joined with processReplyHeader(), but | |
826 | * we split it for ICAP. | |
827 | */ | |
828 | void | |
829 | HttpStateData::haveParsedReplyHeaders() | |
830 | { | |
831 | Ctx ctx = ctx_enter(entry->mem_obj->url); | |
832 | ||
833 | if (getReply()->sline.status == HTTP_PARTIAL_CONTENT && | |
834 | getReply()->content_range) | |
835 | currentOffset = getReply()->content_range->spec.offset; | |
62e76326 | 836 | |
9bc73deb | 837 | storeTimestampsSet(entry); |
62e76326 | 838 | |
9bc73deb | 839 | /* Check if object is cacheable or not based on reply code */ |
2afaba07 | 840 | debug(11, 3) ("haveParsedReplyHeaders: HTTP CODE: %d\n", getReply()->sline.status); |
62e76326 | 841 | |
9bc73deb | 842 | if (neighbors_do_private_keys) |
2afaba07 | 843 | httpMaybeRemovePublic(entry, getReply()->sline.status); |
e6ccf245 | 844 | |
2afaba07 | 845 | if (httpHeaderHas(&getReply()->header, HDR_VARY) |
f66a9ef4 | 846 | #if X_ACCELERATOR_VARY |
2afaba07 | 847 | || httpHeaderHas(&getReply()->header, HDR_X_ACCELERATOR_VARY) |
f66a9ef4 | 848 | #endif |
4b44c907 | 849 | ) { |
2afaba07 | 850 | const char *vary = httpMakeVaryMark(orig_request, getReply()); |
4b44c907 | 851 | |
852 | if (!vary) { | |
853 | httpMakePrivate(entry); | |
854 | goto no_cache; | |
855 | ||
62e76326 | 856 | } |
857 | ||
4b44c907 | 858 | entry->mem_obj->vary_headers = xstrdup(vary); |
859 | } | |
860 | ||
2afaba07 | 861 | #if WIP_FWD_LOG |
862 | fwdStatus(fwd, s); | |
863 | ||
864 | #endif | |
865 | /* | |
866 | * If its not a reply that we will re-forward, then | |
867 | * allow the client to get it. | |
868 | */ | |
b6b6f466 | 869 | if (!fwd->reforwardableStatus(getReply()->sline.status)) |
2afaba07 | 870 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); |
871 | ||
4b44c907 | 872 | switch (cacheableReply()) { |
873 | ||
874 | case 1: | |
875 | httpMakePublic(entry); | |
62e76326 | 876 | break; |
877 | ||
9bc73deb | 878 | case 0: |
62e76326 | 879 | httpMakePrivate(entry); |
880 | break; | |
881 | ||
9bc73deb | 882 | case -1: |
4b44c907 | 883 | |
884 | if (Config.negativeTtl > 0) | |
885 | httpCacheNegatively(entry); | |
886 | else | |
887 | httpMakePrivate(entry); | |
888 | ||
62e76326 | 889 | break; |
890 | ||
9bc73deb | 891 | default: |
62e76326 | 892 | assert(0); |
4b44c907 | 893 | |
62e76326 | 894 | break; |
9bc73deb | 895 | } |
62e76326 | 896 | |
4b44c907 | 897 | no_cache: |
898 | ||
2afaba07 | 899 | if (!ignoreCacheControl && getReply()->cache_control) { |
900 | if (EBIT_TEST(getReply()->cache_control->mask, CC_PROXY_REVALIDATE)) | |
62e76326 | 901 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
2afaba07 | 902 | else if (EBIT_TEST(getReply()->cache_control->mask, CC_MUST_REVALIDATE)) |
62e76326 | 903 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
9bc73deb | 904 | } |
62e76326 | 905 | |
9bc73deb | 906 | ctx_exit(ctx); |
c3609322 | 907 | #if HEADERS_LOG |
62e76326 | 908 | |
2afaba07 | 909 | headersLog(1, 0, request->method, getReply()); |
c3609322 | 910 | #endif |
f5558c95 | 911 | } |
912 | ||
528b2c61 | 913 | HttpStateData::ConnectionStatus |
914 | HttpStateData::statusIfComplete() const | |
603a02fd | 915 | { |
2afaba07 | 916 | HttpReply const *rep = getReply(); |
528b2c61 | 917 | /* If the reply wants to close the connection, it takes precedence */ |
62e76326 | 918 | |
2afaba07 | 919 | if (httpHeaderHasConnDir(&rep->header, "close")) |
62e76326 | 920 | return COMPLETE_NONPERSISTENT_MSG; |
921 | ||
528b2c61 | 922 | /* If we didn't send a keep-alive request header, then this |
978e455f | 923 | * can not be a persistent connection. |
924 | */ | |
528b2c61 | 925 | if (!flags.keepalive) |
62e76326 | 926 | return COMPLETE_NONPERSISTENT_MSG; |
927 | ||
72b63f06 | 928 | /* |
929 | * If we haven't sent the whole request then this can not be a persistent | |
930 | * connection. | |
931 | */ | |
932 | if (!flags.request_sent) { | |
2afdbf48 | 933 | debug(11, 1) ("statusIfComplete: Request not yet fully sent \"%s %s\"\n", |
72b63f06 | 934 | RequestMethodStr[orig_request->method], |
935 | storeUrl(entry)); | |
936 | return COMPLETE_NONPERSISTENT_MSG; | |
937 | } | |
938 | ||
9f5a2895 | 939 | /* |
940 | * What does the reply have to say about keep-alive? | |
941 | */ | |
b6a2f15e | 942 | /* |
943 | * XXX BUG? | |
944 | * If the origin server (HTTP/1.0) does not send a keep-alive | |
945 | * header, but keeps the connection open anyway, what happens? | |
946 | * We'll return here and http.c waits for an EOF before changing | |
947 | * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT | |
948 | * and an error status code, and we might have to wait until | |
949 | * the server times out the socket. | |
950 | */ | |
2afaba07 | 951 | if (!rep->keep_alive) |
528b2c61 | 952 | return COMPLETE_NONPERSISTENT_MSG; |
62e76326 | 953 | |
528b2c61 | 954 | return COMPLETE_PERSISTENT_MSG; |
955 | } | |
956 | ||
957 | HttpStateData::ConnectionStatus | |
958 | HttpStateData::persistentConnStatus() const | |
959 | { | |
528b2c61 | 960 | int clen; |
2afaba07 | 961 | debug(11, 3) ("persistentConnStatus: FD %d\n", fd); |
528b2c61 | 962 | ConnectionStatus result = statusIfComplete(); |
2afaba07 | 963 | debug(11, 5) ("persistentConnStatus: content_length=%d\n", |
62e76326 | 964 | reply->content_length); |
35282fbf | 965 | /* If we haven't seen the end of reply headers, we are not done */ |
62e76326 | 966 | |
2afaba07 | 967 | debug(11,5)("persistentConnStatus: flags.headers_parsed=%d\n", flags.headers_parsed); |
968 | ||
1a98175f | 969 | if (!flags.headers_parsed) |
62e76326 | 970 | return INCOMPLETE_MSG; |
971 | ||
06a5ae20 | 972 | clen = reply->bodySize(request->method); |
62e76326 | 973 | |
2afaba07 | 974 | debug(11,5)("persistentConnStatus: clen=%d\n", clen); |
975 | ||
35282fbf | 976 | /* If there is no message body, we can be persistent */ |
977 | if (0 == clen) | |
62e76326 | 978 | return result; |
979 | ||
35282fbf | 980 | /* If the body size is unknown we must wait for EOF */ |
981 | if (clen < 0) | |
62e76326 | 982 | return INCOMPLETE_MSG; |
983 | ||
35282fbf | 984 | /* If the body size is known, we must wait until we've gotten all of it. */ |
2afaba07 | 985 | /* old technique: |
986 | * if (entry->mem_obj->endOffset() < reply->content_length + reply->hdr_sz) */ | |
987 | debug(11,5)("persistentConnStatus: body_bytes_read=%d, content_length=%d\n", | |
988 | body_bytes_read, reply->content_length); | |
989 | ||
990 | if (body_bytes_read < reply->content_length) | |
62e76326 | 991 | return INCOMPLETE_MSG; |
992 | ||
35282fbf | 993 | /* We got it all */ |
528b2c61 | 994 | return result; |
603a02fd | 995 | } |
090089c4 | 996 | |
2afaba07 | 997 | /* |
998 | * This is the callback after some data has been read from the network | |
999 | */ | |
e5ee81f0 | 1000 | void |
1001 | HttpStateData::ReadReplyWrapper(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data) | |
c4b7a5a9 | 1002 | { |
1003 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
7194987f | 1004 | assert (fd == httpState->fd); |
2afaba07 | 1005 | // assert(buf == readBuf->content()); |
1d5161bd | 1006 | PROF_start(HttpStateData_readReply); |
2afaba07 | 1007 | httpState->readReply (len, flag, xerrno); |
1d5161bd | 1008 | PROF_stop(HttpStateData_readReply); |
c4b7a5a9 | 1009 | } |
1010 | ||
2afdbf48 | 1011 | /* XXX this function is too long! */ |
c4b7a5a9 | 1012 | void |
2afaba07 | 1013 | HttpStateData::readReply (size_t len, comm_err_t flag, int xerrno) |
090089c4 | 1014 | { |
30a4f2a8 | 1015 | int bin; |
090089c4 | 1016 | int clen; |
f61f0107 | 1017 | flags.do_next_read = 0; |
c4b7a5a9 | 1018 | |
2afaba07 | 1019 | /* |
1020 | * Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us | |
1021 | */ | |
62e76326 | 1022 | |
c4b7a5a9 | 1023 | if (flag == COMM_ERR_CLOSING) { |
d09176e1 | 1024 | debug (11,3)("http socket closing\n"); |
c4b7a5a9 | 1025 | return; |
1026 | } | |
1027 | ||
e92e4e44 | 1028 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1029 | maybeReadData(); |
1030 | return; | |
e92e4e44 | 1031 | } |
c4b7a5a9 | 1032 | |
1513873c | 1033 | errno = 0; |
c4b7a5a9 | 1034 | /* prepare the read size for the next read (if any) */ |
62e76326 | 1035 | |
c4b7a5a9 | 1036 | debug(11, 5) ("httpReadReply: FD %d: len %d.\n", fd, (int)len); |
62e76326 | 1037 | |
c4b7a5a9 | 1038 | if (flag == COMM_OK && len > 0) { |
2afaba07 | 1039 | readBuf->appended(len); |
447e176b | 1040 | #if DELAY_POOLS |
2afaba07 | 1041 | |
1042 | DelayId delayId = entry->mem_obj->mostBytesAllowed(); | |
62e76326 | 1043 | delayId.bytesIn(len); |
447e176b | 1044 | #endif |
62e76326 | 1045 | |
1046 | kb_incr(&statCounter.server.all.kbytes_in, len); | |
1047 | kb_incr(&statCounter.server.http.kbytes_in, len); | |
62e76326 | 1048 | IOStats.Http.reads++; |
1049 | ||
1050 | for (clen = len - 1, bin = 0; clen; bin++) | |
1051 | clen >>= 1; | |
1052 | ||
1053 | IOStats.Http.read_hist[bin]++; | |
30a4f2a8 | 1054 | } |
62e76326 | 1055 | |
5fa061b8 | 1056 | /* here the RFC says we should ignore whitespace between replies, but we can't as |
1057 | * doing so breaks HTTP/0.9 replies beginning with witespace, and in addition | |
1058 | * the response splitting countermeasures is extremely likely to trigger on this, | |
1059 | * not allowing connection reuse in the first place. | |
1060 | */ | |
1061 | #if DONT_DO_THIS | |
1a98175f | 1062 | if (!flags.headers_parsed && flag == COMM_OK && len > 0 && fd_table[fd].uses > 1) { |
5fa061b8 | 1063 | /* Skip whitespace between replies */ |
62e76326 | 1064 | |
5fa061b8 | 1065 | while (len > 0 && isspace(*buf)) |
62e76326 | 1066 | xmemmove(buf, buf + 1, len--); |
1067 | ||
1068 | if (len == 0) { | |
1069 | /* Continue to read... */ | |
21b92762 | 1070 | /* Timeout NOT increased. This whitespace was from previous reply */ |
f61f0107 | 1071 | flags.do_next_read = 1; |
62e76326 | 1072 | maybeReadData(); |
1073 | return; | |
1074 | } | |
5ede6c8f | 1075 | } |
62e76326 | 1076 | |
5fa061b8 | 1077 | #endif |
1078 | ||
c4b7a5a9 | 1079 | if (flag != COMM_OK || len < 0) { |
62e76326 | 1080 | debug(50, 2) ("httpReadReply: FD %d: read failure: %s.\n", |
1081 | fd, xstrerror()); | |
1082 | ||
1083 | if (ignoreErrno(errno)) { | |
f61f0107 | 1084 | flags.do_next_read = 1; |
6cae5db1 | 1085 | } else { |
62e76326 | 1086 | ErrorState *err; |
4eb368f9 | 1087 | err = errorCon(ERR_READ_ERROR, HTTP_BAD_GATEWAY); |
62e76326 | 1088 | err->xerrno = errno; |
b6b6f466 | 1089 | fwd->fail(err); |
f61f0107 | 1090 | flags.do_next_read = 0; |
62e76326 | 1091 | comm_close(fd); |
62e76326 | 1092 | } |
2afaba07 | 1093 | } else if (flag == COMM_OK && len == 0 && !flags.headers_parsed) { |
b6b6f466 | 1094 | fwd->fail(errorCon(ERR_ZERO_SIZE_OBJECT, HTTP_BAD_GATEWAY)); |
62e76326 | 1095 | eof = 1; |
f61f0107 | 1096 | flags.do_next_read = 0; |
62e76326 | 1097 | comm_close(fd); |
c4b7a5a9 | 1098 | } else if (flag == COMM_OK && len == 0) { |
62e76326 | 1099 | /* Connection closed; retrieval done. */ |
1100 | eof = 1; | |
1101 | ||
1a98175f | 1102 | if (!flags.headers_parsed) |
62e76326 | 1103 | /* |
3f7d66c7 | 1104 | * When we called processReplyHeader() before, we |
1a98175f | 1105 | * didn't find the end of headers, but now we are |
1106 | * definately at EOF, so we want to process the reply | |
1107 | * headers. | |
62e76326 | 1108 | */ |
2afaba07 | 1109 | processReplyHeader(); |
1110 | else if (getReply()->sline.status == HTTP_INVALID_HEADER && HttpVersion(0,9) != getReply()->sline.version) { | |
b6b6f466 | 1111 | fwd->fail(errorCon(ERR_INVALID_RESP, HTTP_BAD_GATEWAY)); |
f61f0107 | 1112 | flags.do_next_read = 0; |
47ac2ebe | 1113 | } else { |
4eb368f9 | 1114 | if (entry->mem_obj->getReply()->sline.status == HTTP_HEADER_TOO_LARGE) { |
4eb368f9 | 1115 | storeEntryReset(entry); |
b6b6f466 | 1116 | fwd->fail( errorCon(ERR_TOO_BIG, HTTP_BAD_GATEWAY)); |
1117 | fwd->dontRetry(true); | |
2afaba07 | 1118 | flags.do_next_read = 0; |
1119 | comm_close(fd); | |
4eb368f9 | 1120 | } else { |
2afaba07 | 1121 | transactionComplete(); |
4eb368f9 | 1122 | } |
62e76326 | 1123 | } |
090089c4 | 1124 | } else { |
1a98175f | 1125 | if (!flags.headers_parsed) { |
2afaba07 | 1126 | processReplyHeader(); |
62e76326 | 1127 | |
1a98175f | 1128 | if (flags.headers_parsed) { |
2afaba07 | 1129 | http_status s = getReply()->sline.status; |
1130 | HttpVersion httpver = getReply()->sline.version; | |
47ac2ebe | 1131 | |
b735b90c | 1132 | if (s == HTTP_INVALID_HEADER && httpver != HttpVersion(0,9)) { |
47ac2ebe | 1133 | storeEntryReset(entry); |
b6b6f466 | 1134 | fwd->fail( errorCon(ERR_INVALID_RESP, HTTP_BAD_GATEWAY)); |
47ac2ebe | 1135 | comm_close(fd); |
1136 | return; | |
1137 | } | |
1138 | ||
2afaba07 | 1139 | } |
1140 | } | |
1141 | ||
1142 | PROF_start(HttpStateData_processReplyBody); | |
1143 | processReplyBody(); | |
1144 | PROF_stop(HttpStateData_processReplyBody); | |
1145 | } | |
1146 | } | |
1147 | ||
1148 | /* | |
1149 | * Call this when there is data from the origin server | |
1150 | * which should be sent to either StoreEntry, or to ICAP... | |
1151 | */ | |
1152 | void | |
1153 | HttpStateData::writeReplyBody(const char *data, int len) | |
1154 | { | |
1155 | #if ICAP_CLIENT | |
62e76326 | 1156 | |
2afaba07 | 1157 | if (icap) { |
1158 | icap->sendMoreData (StoreIOBuffer(len, 0, (char*)data)); | |
1159 | return; | |
1160 | } | |
47ac2ebe | 1161 | |
225644d7 | 1162 | #endif |
62e76326 | 1163 | |
2afaba07 | 1164 | entry->write (StoreIOBuffer(len, currentOffset, (char*)data)); |
62e76326 | 1165 | |
2afaba07 | 1166 | currentOffset += len; |
e6ccf245 | 1167 | } |
1168 | ||
2afaba07 | 1169 | /* |
1170 | * processReplyBody has two purposes: | |
1171 | * 1 - take the reply body data, if any, and put it into either | |
1172 | * the StoreEntry, or give it over to ICAP. | |
1173 | * 2 - see if we made it to the end of the response (persistent | |
1174 | * connections and such) | |
1175 | */ | |
e6ccf245 | 1176 | void |
2afaba07 | 1177 | HttpStateData::processReplyBody() |
e6ccf245 | 1178 | { |
1a98175f | 1179 | if (!flags.headers_parsed) { |
f61f0107 | 1180 | flags.do_next_read = 1; |
62e76326 | 1181 | maybeReadData(); |
1182 | return; | |
528b2c61 | 1183 | } |
62e76326 | 1184 | |
2afaba07 | 1185 | #if ICAP_CLIENT |
1186 | if (icapAccessCheckPending) | |
1187 | return; | |
62e76326 | 1188 | |
2afaba07 | 1189 | #endif |
62e76326 | 1190 | |
2afaba07 | 1191 | /* |
1192 | * At this point the reply headers have been parsed and consumed. | |
1193 | * That means header content has been removed from readBuf and | |
1194 | * it contains only body data. | |
1195 | */ | |
1196 | writeReplyBody(readBuf->content(), readBuf->contentSize()); | |
62e76326 | 1197 | |
2afaba07 | 1198 | body_bytes_read += readBuf->contentSize(); |
1199 | ||
1200 | readBuf->consume(readBuf->contentSize()); | |
528b2c61 | 1201 | |
e6ccf245 | 1202 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1203 | /* |
2afaba07 | 1204 | * the above writeReplyBody() call could ABORT this entry, |
62e76326 | 1205 | * in that case, the server FD should already be closed. |
1206 | * there's nothing for us to do. | |
1207 | */ | |
1208 | (void) 0; | |
1209 | } else | |
1210 | switch (persistentConnStatus()) { | |
1211 | ||
1212 | case INCOMPLETE_MSG: | |
2afaba07 | 1213 | debug(11,5)("processReplyBody: INCOMPLETE_MSG\n"); |
21b92762 | 1214 | /* Wait for more data or EOF condition */ |
1215 | ||
1216 | if (flags.keepalive_broken) { | |
1217 | commSetTimeout(fd, 10, NULL, NULL); | |
1218 | } else { | |
1219 | commSetTimeout(fd, Config.Timeout.read, NULL, NULL); | |
1220 | } | |
1221 | ||
f61f0107 | 1222 | flags.do_next_read = 1; |
62e76326 | 1223 | break; |
1224 | ||
1225 | case COMPLETE_PERSISTENT_MSG: | |
2afaba07 | 1226 | debug(11,5)("processReplyBody: COMPLETE_PERSISTENT_MSG\n"); |
62e76326 | 1227 | /* yes we have to clear all these! */ |
62e76326 | 1228 | commSetTimeout(fd, -1, NULL, NULL); |
f61f0107 | 1229 | flags.do_next_read = 0; |
62e76326 | 1230 | |
1231 | comm_remove_close_handler(fd, httpStateFree, this); | |
b6b6f466 | 1232 | fwd->unregister(fd); |
bd0723ad | 1233 | |
1234 | if (_peer) { | |
1235 | if (_peer->options.originserver) | |
b6b6f466 | 1236 | fwd->pconnPush(fd, _peer->name, orig_request->port, orig_request->host); |
bd0723ad | 1237 | else |
b6b6f466 | 1238 | fwd->pconnPush(fd, _peer->name, _peer->http_port, NULL); |
bd0723ad | 1239 | } else { |
b6b6f466 | 1240 | fwd->pconnPush(fd, request->host, request->port, NULL); |
bd0723ad | 1241 | } |
1242 | ||
62e76326 | 1243 | fd = -1; |
2afaba07 | 1244 | |
1245 | transactionComplete(); | |
62e76326 | 1246 | return; |
1247 | ||
1248 | case COMPLETE_NONPERSISTENT_MSG: | |
2afaba07 | 1249 | debug(11,5)("processReplyBody: COMPLETE_NONPERSISTENT_MSG\n"); |
1250 | transactionComplete(); | |
62e76326 | 1251 | return; |
1252 | } | |
1253 | ||
c4b7a5a9 | 1254 | maybeReadData(); |
1255 | } | |
1256 | ||
1257 | void | |
1258 | HttpStateData::maybeReadData() | |
1259 | { | |
2afaba07 | 1260 | int read_sz = readBuf->spaceSize(); |
1261 | #if ICAP_CLIENT | |
1262 | ||
1263 | if (icap) { | |
1264 | /* | |
1265 | * Our ICAP message pipes have a finite size limit. We | |
1266 | * should not read more data from the network than will fit | |
1267 | * into the pipe buffer. If totally full, don't register | |
1268 | * the read handler at all. The ICAP side will call our | |
1269 | * icapSpaceAvailable() method when it has free space again. | |
1270 | */ | |
1271 | int icap_space = icap->potentialSpaceSize(); | |
1272 | ||
1273 | debugs(11,9, "HttpStateData may read up to min(" << icap_space << | |
1274 | ", " << read_sz << ") bytes"); | |
1275 | ||
1276 | if (icap_space < read_sz) | |
1277 | read_sz = icap_space; | |
1278 | } | |
1279 | ||
1280 | #endif | |
1281 | ||
1282 | debugs(11,9, "HttpStateData may read up to " << read_sz << " bytes"); | |
1283 | ||
1284 | /* | |
1285 | * why <2? Because delayAwareRead() won't actually read if | |
1286 | * you ask it to read 1 byte. The delayed read request | |
1287 | * just gets re-queued until the client side drains, then | |
1288 | * the I/O thread hangs. Better to not register any read | |
1289 | * handler until we get a notification from someone that | |
1290 | * its okay to read again. | |
1291 | */ | |
1292 | if (read_sz < 2) | |
1293 | return; | |
1294 | ||
f61f0107 | 1295 | if (flags.do_next_read) { |
1296 | flags.do_next_read = 0; | |
e5ee81f0 | 1297 | entry->delayAwareRead(fd, readBuf->space(), read_sz, ReadReplyWrapper, this); |
528b2c61 | 1298 | } |
090089c4 | 1299 | } |
1300 | ||
2afaba07 | 1301 | /* |
1302 | * This will be called when request write is complete. | |
1303 | */ | |
d576a6a6 | 1304 | void |
1305 | HttpStateData::SendComplete(int fd, char *bufnotused, size_t size, comm_err_t errflag, void *data) | |
090089c4 | 1306 | { |
e6ccf245 | 1307 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
a3d5953d | 1308 | debug(11, 5) ("httpSendComplete: FD %d: size %d: errflag %d.\n", |
62e76326 | 1309 | fd, (int) size, errflag); |
bc87dc25 | 1310 | #if URL_CHECKSUM_DEBUG |
62e76326 | 1311 | |
528b2c61 | 1312 | entry->mem_obj->checkUrlChecksum(); |
bc87dc25 | 1313 | #endif |
62e76326 | 1314 | |
ee1679df | 1315 | if (size > 0) { |
62e76326 | 1316 | fd_bytes(fd, size, FD_WRITE); |
1317 | kb_incr(&statCounter.server.all.kbytes_out, size); | |
1318 | kb_incr(&statCounter.server.http.kbytes_out, size); | |
ee1679df | 1319 | } |
62e76326 | 1320 | |
ea3a2a69 | 1321 | if (errflag == COMM_ERR_CLOSING) |
62e76326 | 1322 | return; |
1323 | ||
090089c4 | 1324 | if (errflag) { |
6cae5db1 | 1325 | ErrorState *err; |
4eb368f9 | 1326 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY); |
62e76326 | 1327 | err->xerrno = errno; |
b6b6f466 | 1328 | httpState->fwd->fail(err); |
62e76326 | 1329 | comm_close(fd); |
1330 | return; | |
090089c4 | 1331 | } |
72b63f06 | 1332 | |
2afaba07 | 1333 | /* |
1334 | * Set the read timeout here because it hasn't been set yet. | |
1335 | * We only set the read timeout after the request has been | |
1336 | * fully written to the server-side. If we start the timeout | |
1337 | * after connection establishment, then we are likely to hit | |
1338 | * the timeout for POST/PUT requests that have very large | |
1339 | * request bodies. | |
1340 | */ | |
1341 | commSetTimeout(fd, Config.Timeout.read, httpTimeout, httpState); | |
1342 | ||
72b63f06 | 1343 | httpState->flags.request_sent = 1; |
090089c4 | 1344 | } |
1345 | ||
2afaba07 | 1346 | /* |
1347 | * Calling this function marks the end of the HTTP transaction. | |
1348 | * i.e., done talking to the HTTP server. With ICAP, however, that | |
1349 | * does not mean that we're done with HttpStateData and the StoreEntry. | |
1350 | * We'll be expecting adapted data to come back from the ICAP | |
1351 | * routines. | |
1352 | */ | |
1353 | void | |
1354 | HttpStateData::transactionComplete() | |
1355 | { | |
2bb867b5 | 1356 | debugs(11,5,HERE << "transactionComplete FD " << fd << " this " << this); |
1357 | ||
2afaba07 | 1358 | if (fd >= 0) { |
b6b6f466 | 1359 | fwd->unregister(fd); |
2afaba07 | 1360 | comm_remove_close_handler(fd, httpStateFree, this); |
1361 | comm_close(fd); | |
1362 | fd = -1; | |
1363 | } | |
1364 | ||
1365 | #if ICAP_CLIENT | |
1366 | if (icap) { | |
1367 | icap->doneSending(); | |
30398be3 | 1368 | return; |
1369 | } | |
2afaba07 | 1370 | |
1371 | #endif | |
1372 | ||
b6b6f466 | 1373 | fwd->complete(); |
2afaba07 | 1374 | |
30398be3 | 1375 | httpStateFree(-1, this); |
2afaba07 | 1376 | } |
1377 | ||
99edd1c3 | 1378 | /* |
1379 | * build request headers and append them to a given MemBuf | |
e5ee81f0 | 1380 | * used by buildRequestPrefix() |
818c6c9e | 1381 | * note: initialised the HttpHeader, the caller is responsible for Clean()-ing |
99edd1c3 | 1382 | */ |
e1e72f06 | 1383 | void |
e5ee81f0 | 1384 | HttpStateData::httpBuildRequestHeader(HttpRequest * request, |
1385 | HttpRequest * orig_request, | |
1386 | StoreEntry * entry, | |
1387 | HttpHeader * hdr_out, | |
1388 | http_state_flags flags) | |
6bf8443a | 1389 | { |
99edd1c3 | 1390 | /* building buffer for complex strings */ |
5999b776 | 1391 | #define BBUF_SZ (MAX_URL+32) |
99edd1c3 | 1392 | LOCAL_ARRAY(char, bbuf, BBUF_SZ); |
99edd1c3 | 1393 | const HttpHeader *hdr_in = &orig_request->header; |
1394 | const HttpHeaderEntry *e; | |
6bccf575 | 1395 | String strFwd; |
99edd1c3 | 1396 | HttpHeaderPos pos = HttpHeaderInitPos; |
75faaa7a | 1397 | assert (hdr_out->owner == hoRequest); |
99edd1c3 | 1398 | /* append our IMS header */ |
62e76326 | 1399 | |
fa3e249f | 1400 | if (request->lastmod > -1) |
62e76326 | 1401 | httpHeaderPutTime(hdr_out, HDR_IF_MODIFIED_SINCE, request->lastmod); |
99edd1c3 | 1402 | |
528b2c61 | 1403 | bool we_do_ranges = decideIfWeDoRanges (orig_request); |
1404 | ||
650c4b88 | 1405 | String strConnection (httpHeaderGetList(hdr_in, HDR_CONNECTION)); |
62e76326 | 1406 | |
528b2c61 | 1407 | while ((e = httpHeaderGetEntry(hdr_in, &pos))) |
62e76326 | 1408 | copyOneHeaderFromClientsideRequestToUpstreamRequest(e, strConnection, request, orig_request, hdr_out, we_do_ranges, flags); |
528b2c61 | 1409 | |
43ae1d95 | 1410 | /* Abstraction break: We should interpret multipart/byterange responses |
528b2c61 | 1411 | * into offset-length data, and this works around our inability to do so. |
1412 | */ | |
62e76326 | 1413 | if (!we_do_ranges && orig_request->multipartRangeRequest()) { |
1414 | /* don't cache the result */ | |
1415 | orig_request->flags.cachable = 0; | |
1416 | /* pretend it's not a range request */ | |
00d77d6b | 1417 | delete orig_request->range; |
62e76326 | 1418 | orig_request->range = NULL; |
1419 | orig_request->flags.range = 0; | |
1420 | } | |
528b2c61 | 1421 | |
99edd1c3 | 1422 | /* append Via */ |
736cb6aa | 1423 | if (Config.onoff.via) { |
43ae1d95 | 1424 | String strVia; |
1425 | strVia = httpHeaderGetList(hdr_in, HDR_VIA); | |
62e76326 | 1426 | snprintf(bbuf, BBUF_SZ, "%d.%d %s", |
1427 | orig_request->http_ver.major, | |
1428 | orig_request->http_ver.minor, ThisCache); | |
1429 | strListAdd(&strVia, bbuf, ','); | |
1430 | httpHeaderPutStr(hdr_out, HDR_VIA, strVia.buf()); | |
1431 | strVia.clean(); | |
736cb6aa | 1432 | } |
62e76326 | 1433 | |
43ae1d95 | 1434 | #if ESI |
1435 | { | |
1436 | /* Append Surrogate-Capabilities */ | |
1437 | String strSurrogate (httpHeaderGetList(hdr_in, HDR_SURROGATE_CAPABILITY)); | |
ec43ae0e | 1438 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0 ESI/1.0\"", |
43ae1d95 | 1439 | Config.Accel.surrogate_id); |
1440 | strListAdd(&strSurrogate, bbuf, ','); | |
1441 | httpHeaderPutStr(hdr_out, HDR_SURROGATE_CAPABILITY, strSurrogate.buf()); | |
1442 | } | |
1443 | #endif | |
1444 | ||
99edd1c3 | 1445 | /* append X-Forwarded-For */ |
6bccf575 | 1446 | strFwd = httpHeaderGetList(hdr_in, HDR_X_FORWARDED_FOR); |
62e76326 | 1447 | |
6056ae68 | 1448 | if (opt_forwarded_for && orig_request->client_addr.s_addr != no_addr.s_addr) |
62e76326 | 1449 | strListAdd(&strFwd, inet_ntoa(orig_request->client_addr), ','); |
6056ae68 | 1450 | else |
62e76326 | 1451 | strListAdd(&strFwd, "unknown", ','); |
1452 | ||
528b2c61 | 1453 | httpHeaderPutStr(hdr_out, HDR_X_FORWARDED_FOR, strFwd.buf()); |
62e76326 | 1454 | |
528b2c61 | 1455 | strFwd.clean(); |
6bccf575 | 1456 | |
99edd1c3 | 1457 | /* append Host if not there already */ |
1458 | if (!httpHeaderHas(hdr_out, HDR_HOST)) { | |
62e76326 | 1459 | if (orig_request->peer_domain) { |
1460 | httpHeaderPutStr(hdr_out, HDR_HOST, orig_request->peer_domain); | |
1461 | } else if (orig_request->port == urlDefaultPort(orig_request->protocol)) { | |
1462 | /* use port# only if not default */ | |
1463 | httpHeaderPutStr(hdr_out, HDR_HOST, orig_request->host); | |
1464 | } else { | |
1465 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
1466 | orig_request->host, (int) orig_request->port); | |
1467 | } | |
6bf8443a | 1468 | } |
62e76326 | 1469 | |
c68e9c6b | 1470 | /* append Authorization if known in URL, not in header and going direct */ |
1471 | if (!httpHeaderHas(hdr_out, HDR_AUTHORIZATION)) { | |
62e76326 | 1472 | if (!request->flags.proxying && *request->login) { |
1473 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1474 | base64_encode(request->login)); | |
1475 | } | |
c68e9c6b | 1476 | } |
62e76326 | 1477 | |
c68e9c6b | 1478 | /* append Proxy-Authorization if configured for peer, and proxying */ |
c3b33cb7 | 1479 | if (request->flags.proxying && orig_request->peer_login && |
62e76326 | 1480 | !httpHeaderHas(hdr_out, HDR_PROXY_AUTHORIZATION)) { |
1481 | if (*orig_request->peer_login == '*') { | |
1482 | /* Special mode, to pass the username to the upstream cache */ | |
1483 | char loginbuf[256]; | |
1484 | const char *username = "-"; | |
1485 | ||
1486 | if (orig_request->auth_user_request) | |
1487 | username = orig_request->auth_user_request->username(); | |
abb929f0 | 1488 | else if (orig_request->extacl_user.size()) |
1489 | username = orig_request->extacl_user.buf(); | |
62e76326 | 1490 | |
1491 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1492 | ||
1493 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1494 | base64_encode(loginbuf)); | |
1495 | } else if (strcmp(orig_request->peer_login, "PASS") == 0) { | |
abb929f0 | 1496 | if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1497 | char loginbuf[256]; | |
1498 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); | |
1499 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1500 | base64_encode(loginbuf)); | |
1501 | } | |
62e76326 | 1502 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { |
1503 | /* Nothing to do */ | |
1504 | } else { | |
1505 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1506 | base64_encode(orig_request->peer_login)); | |
1507 | } | |
c68e9c6b | 1508 | } |
62e76326 | 1509 | |
be753325 | 1510 | /* append WWW-Authorization if configured for peer */ |
1511 | if (flags.originpeer && orig_request->peer_login && | |
62e76326 | 1512 | !httpHeaderHas(hdr_out, HDR_AUTHORIZATION)) { |
1513 | if (strcmp(orig_request->peer_login, "PASS") == 0) { | |
1514 | /* No credentials to forward.. (should have been done above if available) */ | |
1515 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { | |
1516 | /* Special mode, convert proxy authentication to WWW authentication | |
abb929f0 | 1517 | * (also applies to authentication provided by external acl) |
62e76326 | 1518 | */ |
1519 | const char *auth = httpHeaderGetStr(hdr_in, HDR_PROXY_AUTHORIZATION); | |
1520 | ||
1521 | if (auth && strncasecmp(auth, "basic ", 6) == 0) { | |
1522 | httpHeaderPutStr(hdr_out, HDR_AUTHORIZATION, auth); | |
abb929f0 | 1523 | } else if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1524 | char loginbuf[256]; | |
1525 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); | |
1526 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1527 | base64_encode(loginbuf)); | |
62e76326 | 1528 | } |
1529 | } else if (*orig_request->peer_login == '*') { | |
1530 | /* Special mode, to pass the username to the upstream cache */ | |
1531 | char loginbuf[256]; | |
1532 | const char *username = "-"; | |
1533 | ||
1534 | if (orig_request->auth_user_request) | |
f5691f9c | 1535 | username = orig_request->auth_user_request->username(); |
abb929f0 | 1536 | else if (orig_request->extacl_user.size()) |
1537 | username = orig_request->extacl_user.buf(); | |
62e76326 | 1538 | |
1539 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1540 | ||
1541 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1542 | base64_encode(loginbuf)); | |
1543 | } else { | |
1544 | /* Fixed login string */ | |
1545 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1546 | base64_encode(orig_request->peer_login)); | |
1547 | } | |
be753325 | 1548 | } |
62e76326 | 1549 | |
abb929f0 | 1550 | /* append Cache-Control, add max-age if not there already */ { |
62e76326 | 1551 | HttpHdrCc *cc = httpHeaderGetCc(hdr_in); |
1552 | ||
1553 | if (!cc) | |
1554 | cc = httpHdrCcCreate(); | |
1555 | ||
1556 | if (!EBIT_TEST(cc->mask, CC_MAX_AGE)) { | |
43ae1d95 | 1557 | const char *url = |
1558 | entry ? storeUrl(entry) : urlCanonical(orig_request); | |
62e76326 | 1559 | httpHdrCcSetMaxAge(cc, getMaxAge(url)); |
1560 | ||
1561 | if (request->urlpath.size()) | |
1562 | assert(strstr(url, request->urlpath.buf())); | |
1563 | } | |
1564 | ||
ce2d6441 | 1565 | /* Set no-cache if determined needed but not found */ |
1566 | if (orig_request->flags.nocache && !httpHeaderHas(hdr_in, HDR_PRAGMA)) | |
1567 | EBIT_SET(cc->mask, CC_NO_CACHE); | |
1568 | ||
1569 | /* Enforce sibling relations */ | |
62e76326 | 1570 | if (flags.only_if_cached) |
1571 | EBIT_SET(cc->mask, CC_ONLY_IF_CACHED); | |
1572 | ||
1573 | httpHeaderPutCc(hdr_out, cc); | |
1574 | ||
1575 | httpHdrCcDestroy(cc); | |
6bf8443a | 1576 | } |
62e76326 | 1577 | |
99edd1c3 | 1578 | /* maybe append Connection: keep-alive */ |
b515fc11 | 1579 | if (flags.keepalive) { |
62e76326 | 1580 | if (flags.proxying) { |
1581 | httpHeaderPutStr(hdr_out, HDR_PROXY_CONNECTION, "keep-alive"); | |
1582 | } else { | |
1583 | httpHeaderPutStr(hdr_out, HDR_CONNECTION, "keep-alive"); | |
1584 | } | |
603a02fd | 1585 | } |
62e76326 | 1586 | |
a7ad6e4e | 1587 | /* append Front-End-Https */ |
1588 | if (flags.front_end_https) { | |
62e76326 | 1589 | if (flags.front_end_https == 1 || request->protocol == PROTO_HTTPS) |
1590 | httpHeaderPutStr(hdr_out, HDR_FRONT_END_HTTPS, "On"); | |
a7ad6e4e | 1591 | } |
1592 | ||
6bccf575 | 1593 | /* Now mangle the headers. */ |
4f56514c | 1594 | if (Config2.onoff.mangle_request_headers) |
5967c0bf | 1595 | httpHdrMangleList(hdr_out, request, ROR_REQUEST); |
62e76326 | 1596 | |
528b2c61 | 1597 | strConnection.clean(); |
99edd1c3 | 1598 | } |
1599 | ||
528b2c61 | 1600 | void |
190154cf | 1601 | copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, String strConnection, HttpRequest * request, HttpRequest * orig_request, HttpHeader * hdr_out, int we_do_ranges, http_state_flags flags) |
528b2c61 | 1602 | { |
1603 | debug(11, 5) ("httpBuildRequestHeader: %s: %s\n", | |
62e76326 | 1604 | e->name.buf(), e->value.buf()); |
1605 | ||
528b2c61 | 1606 | if (!httpRequestHdrAllowed(e, &strConnection)) { |
62e76326 | 1607 | debug(11, 2) ("'%s' header denied by anonymize_headers configuration\n",+ e->name.buf()); |
1608 | return; | |
528b2c61 | 1609 | } |
62e76326 | 1610 | |
528b2c61 | 1611 | switch (e->id) { |
62e76326 | 1612 | |
be753325 | 1613 | case HDR_PROXY_AUTHORIZATION: |
62e76326 | 1614 | /* Only pass on proxy authentication to peers for which |
1615 | * authentication forwarding is explicitly enabled | |
1616 | */ | |
1617 | ||
1618 | if (flags.proxying && orig_request->peer_login && | |
abb929f0 | 1619 | (strcmp(orig_request->peer_login, "PASS") == 0 || |
1620 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
62e76326 | 1621 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); |
1622 | } | |
1623 | ||
1624 | break; | |
1625 | ||
be753325 | 1626 | case HDR_AUTHORIZATION: |
62e76326 | 1627 | /* Pass on WWW authentication */ |
1628 | ||
1629 | if (!flags.originpeer) { | |
1630 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); | |
1631 | } else { | |
1632 | /* In accelerators, only forward authentication if enabled | |
1633 | * (see also below for proxy->server authentication) | |
1634 | */ | |
1635 | ||
abb929f0 | 1636 | if (orig_request->peer_login && |
1637 | (strcmp(orig_request->peer_login, "PASS") == 0 || | |
1638 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
62e76326 | 1639 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); |
1640 | } | |
1641 | } | |
1642 | ||
1643 | break; | |
1644 | ||
be753325 | 1645 | case HDR_HOST: |
62e76326 | 1646 | /* |
b883b594 | 1647 | * Normally Squid rewrites the Host: header. |
1648 | * However, there is one case when we don't: If the URL | |
62e76326 | 1649 | * went through our redirector and the admin configured |
1650 | * 'redir_rewrites_host' to be off. | |
1651 | */ | |
1652 | ||
b883b594 | 1653 | if (request->flags.redirected && !Config.onoff.redir_rewrites_host) |
1654 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); | |
1655 | else { | |
1656 | /* use port# only if not default */ | |
1657 | ||
1658 | if (orig_request->port == urlDefaultPort(orig_request->protocol)) { | |
1659 | httpHeaderPutStr(hdr_out, HDR_HOST, orig_request->host); | |
1660 | } else { | |
1661 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
1662 | orig_request->host, (int) orig_request->port); | |
1663 | } | |
1664 | } | |
62e76326 | 1665 | |
1666 | break; | |
1667 | ||
be753325 | 1668 | case HDR_IF_MODIFIED_SINCE: |
62e76326 | 1669 | /* append unless we added our own; |
1670 | * note: at most one client's ims header can pass through */ | |
b883b594 | 1671 | |
62e76326 | 1672 | if (!httpHeaderHas(hdr_out, HDR_IF_MODIFIED_SINCE)) |
1673 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); | |
1674 | ||
1675 | break; | |
1676 | ||
be753325 | 1677 | case HDR_MAX_FORWARDS: |
62e76326 | 1678 | if (orig_request->method == METHOD_TRACE) { |
1679 | const int hops = httpHeaderEntryGetInt(e); | |
1680 | ||
1681 | if (hops > 0) | |
1682 | httpHeaderPutInt(hdr_out, HDR_MAX_FORWARDS, hops - 1); | |
1683 | } | |
1684 | ||
1685 | break; | |
1686 | ||
be753325 | 1687 | case HDR_VIA: |
62e76326 | 1688 | /* If Via is disabled then forward any received header as-is */ |
1689 | ||
1690 | if (!Config.onoff.via) | |
1691 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); | |
1692 | ||
1693 | break; | |
1694 | ||
be753325 | 1695 | case HDR_RANGE: |
62e76326 | 1696 | |
be753325 | 1697 | case HDR_IF_RANGE: |
62e76326 | 1698 | |
be753325 | 1699 | case HDR_REQUEST_RANGE: |
62e76326 | 1700 | if (!we_do_ranges) |
1701 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); | |
1702 | ||
1703 | break; | |
1704 | ||
be753325 | 1705 | case HDR_PROXY_CONNECTION: |
62e76326 | 1706 | |
be753325 | 1707 | case HDR_CONNECTION: |
62e76326 | 1708 | |
be753325 | 1709 | case HDR_X_FORWARDED_FOR: |
62e76326 | 1710 | |
be753325 | 1711 | case HDR_CACHE_CONTROL: |
62e76326 | 1712 | /* append these after the loop if needed */ |
1713 | break; | |
1714 | ||
be753325 | 1715 | case HDR_FRONT_END_HTTPS: |
62e76326 | 1716 | if (!flags.front_end_https) |
1717 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); | |
1718 | ||
1719 | break; | |
1720 | ||
be753325 | 1721 | default: |
62e76326 | 1722 | /* pass on all other header fields */ |
1723 | httpHeaderAddEntry(hdr_out, httpHeaderEntryClone(e)); | |
528b2c61 | 1724 | } |
1725 | } | |
1726 | ||
e5ee81f0 | 1727 | bool |
1728 | HttpStateData::decideIfWeDoRanges (HttpRequest * orig_request) | |
528b2c61 | 1729 | { |
e5ee81f0 | 1730 | bool result = true; |
62e76326 | 1731 | /* decide if we want to do Ranges ourselves |
1732 | * and fetch the whole object now) | |
1733 | * We want to handle Ranges ourselves iff | |
1734 | * - we can actually parse client Range specs | |
1735 | * - the specs are expected to be simple enough (e.g. no out-of-order ranges) | |
1736 | * - reply will be cachable | |
1737 | * (If the reply will be uncachable we have to throw it away after | |
1738 | * serving this request, so it is better to forward ranges to | |
1739 | * the server and fetch only the requested content) | |
1740 | */ | |
1741 | ||
1742 | if (NULL == orig_request->range || !orig_request->flags.cachable | |
1743 | || orig_request->range->offsetLimitExceeded()) | |
e5ee81f0 | 1744 | result = false; |
62e76326 | 1745 | |
1746 | debug(11, 8) ("decideIfWeDoRanges: range specs: %p, cachable: %d; we_do_ranges: %d\n", | |
1747 | orig_request->range, orig_request->flags.cachable, result); | |
1748 | ||
1749 | return result; | |
528b2c61 | 1750 | } |
1751 | ||
62e76326 | 1752 | /* build request prefix and append it to a given MemBuf; |
99edd1c3 | 1753 | * return the length of the prefix */ |
9bc73deb | 1754 | mb_size_t |
e5ee81f0 | 1755 | HttpStateData::buildRequestPrefix(HttpRequest * request, |
1756 | HttpRequest * orig_request, | |
1757 | StoreEntry * entry, | |
1758 | MemBuf * mb, | |
1759 | http_state_flags flags) | |
99edd1c3 | 1760 | { |
1761 | const int offset = mb->size; | |
450e0c10 | 1762 | HttpVersion httpver(1, 0); |
2fe7eff9 | 1763 | mb->Printf("%s %s HTTP/%d.%d\r\n", |
1764 | RequestMethodStr[request->method], | |
1765 | request->urlpath.size() ? request->urlpath.buf() : "/", | |
1766 | httpver.major,httpver.minor); | |
99edd1c3 | 1767 | /* build and pack headers */ |
1768 | { | |
75faaa7a | 1769 | HttpHeader hdr(hoRequest); |
62e76326 | 1770 | Packer p; |
1771 | httpBuildRequestHeader(request, orig_request, entry, &hdr, flags); | |
1772 | packerToMemInit(&p, mb); | |
1773 | httpHeaderPackInto(&hdr, &p); | |
1774 | httpHeaderClean(&hdr); | |
1775 | packerClean(&p); | |
9d9d144b | 1776 | } |
99edd1c3 | 1777 | /* append header terminator */ |
2fe7eff9 | 1778 | mb->append(crlf, 2); |
99edd1c3 | 1779 | return mb->size - offset; |
6bf8443a | 1780 | } |
62e76326 | 1781 | |
090089c4 | 1782 | /* This will be called when connect completes. Write request. */ |
2bb867b5 | 1783 | void |
1784 | HttpStateData::sendRequest() | |
090089c4 | 1785 | { |
99edd1c3 | 1786 | MemBuf mb; |
901e234d | 1787 | CWCB *sendHeaderDone; |
090089c4 | 1788 | |
2bb867b5 | 1789 | debug(11, 5) ("httpSendRequest: FD %d: this %p.\n", fd, this); |
090089c4 | 1790 | |
2bb867b5 | 1791 | commSetTimeout(fd, Config.Timeout.lifetime, httpTimeout, this); |
1792 | flags.do_next_read = 1; | |
1793 | maybeReadData(); | |
21b92762 | 1794 | |
2bb867b5 | 1795 | if (orig_request->body_connection.getRaw() != NULL) |
1796 | sendHeaderDone = HttpStateData::SendRequestEntityWrapper; | |
7db8b16d | 1797 | else |
62e76326 | 1798 | sendHeaderDone = HttpStateData::SendComplete; |
54220df8 | 1799 | |
2bb867b5 | 1800 | if (_peer != NULL) { |
1801 | if (_peer->options.originserver) { | |
1802 | flags.proxying = 0; | |
1803 | flags.originpeer = 1; | |
62e76326 | 1804 | } else { |
2bb867b5 | 1805 | flags.proxying = 1; |
1806 | flags.originpeer = 0; | |
62e76326 | 1807 | } |
be753325 | 1808 | } else { |
2bb867b5 | 1809 | flags.proxying = 0; |
1810 | flags.originpeer = 0; | |
be753325 | 1811 | } |
62e76326 | 1812 | |
efb9218c | 1813 | /* |
99edd1c3 | 1814 | * Is keep-alive okay for all request methods? |
efb9218c | 1815 | */ |
efd900cb | 1816 | if (!Config.onoff.server_pconns) |
2bb867b5 | 1817 | flags.keepalive = 0; |
1818 | else if (_peer == NULL) | |
1819 | flags.keepalive = 1; | |
1820 | else if (_peer->stats.n_keepalives_sent < 10) | |
1821 | flags.keepalive = 1; | |
1822 | else if ((double) _peer->stats.n_keepalives_recv / | |
1823 | (double) _peer->stats.n_keepalives_sent > 0.50) | |
1824 | flags.keepalive = 1; | |
1825 | ||
1826 | if (_peer) { | |
1827 | if (neighborType(_peer, request) == PEER_SIBLING && | |
1828 | !_peer->options.allow_miss) | |
1829 | flags.only_if_cached = 1; | |
1830 | ||
1831 | flags.front_end_https = _peer->front_end_https; | |
a7ad6e4e | 1832 | } |
62e76326 | 1833 | |
2fe7eff9 | 1834 | mb.init(); |
e5ee81f0 | 1835 | buildRequestPrefix(request, orig_request, entry, &mb, flags); |
21b92762 | 1836 | debug(11, 6) ("httpSendRequest: FD %d:\n%s\n", fd, mb.buf); |
2bb867b5 | 1837 | comm_old_write_mbuf(fd, &mb, sendHeaderDone, this); |
090089c4 | 1838 | } |
b6a2f15e | 1839 | |
910169e5 | 1840 | void |
b6b6f466 | 1841 | httpStart(FwdState *fwd) |
603a02fd | 1842 | { |
910169e5 | 1843 | debug(11, 3) ("httpStart: \"%s %s\"\n", |
a3d50c30 | 1844 | RequestMethodStr[fwd->request->method], |
62e76326 | 1845 | storeUrl(fwd->entry)); |
a3d50c30 | 1846 | HttpStateData *httpState = new HttpStateData(fwd); |
62e76326 | 1847 | |
83704487 | 1848 | statCounter.server.all.requests++; |
62e76326 | 1849 | |
83704487 | 1850 | statCounter.server.http.requests++; |
62e76326 | 1851 | |
2bb867b5 | 1852 | httpState->sendRequest(); |
62e76326 | 1853 | |
b6a2f15e | 1854 | /* |
1855 | * We used to set the read timeout here, but not any more. | |
1856 | * Now its set in httpSendComplete() after the full request, | |
1857 | * including request body, has been written to the server. | |
1858 | */ | |
090089c4 | 1859 | } |
1860 | ||
2bb867b5 | 1861 | void |
1862 | HttpStateData::SendRequestEntityDoneWrapper(int fd, void *data) | |
54220df8 | 1863 | { |
e6ccf245 | 1864 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
2bb867b5 | 1865 | httpState->sendRequestEntityDone(fd); |
1866 | } | |
1867 | ||
1868 | void | |
1869 | HttpStateData::sendRequestEntityDone(int fd) | |
1870 | { | |
4fb35c3c | 1871 | ACLChecklist ch; |
43ae1d95 | 1872 | debug(11, 5) ("httpSendRequestEntityDone: FD %d\n", fd); |
2bb867b5 | 1873 | ch.request = requestLink(request); |
506768d9 | 1874 | |
1875 | if (Config.accessList.brokenPosts) | |
1876 | ch.accessList = cbdataReference(Config.accessList.brokenPosts); | |
62e76326 | 1877 | |
108d65b2 | 1878 | /* cbdataReferenceDone() happens in either fastCheck() or ~ACLCheckList */ |
1879 | ||
94439e4e | 1880 | if (!Config.accessList.brokenPosts) { |
62e76326 | 1881 | debug(11, 5) ("httpSendRequestEntityDone: No brokenPosts list\n"); |
2bb867b5 | 1882 | HttpStateData::SendComplete(fd, NULL, 0, COMM_OK, this); |
b448c119 | 1883 | } else if (!ch.fastCheck()) { |
62e76326 | 1884 | debug(11, 5) ("httpSendRequestEntityDone: didn't match brokenPosts\n"); |
2bb867b5 | 1885 | HttpStateData::SendComplete(fd, NULL, 0, COMM_OK, this); |
94439e4e | 1886 | } else { |
62e76326 | 1887 | debug(11, 2) ("httpSendRequestEntityDone: matched brokenPosts\n"); |
2bb867b5 | 1888 | comm_old_write(fd, "\r\n", 2, HttpStateData::SendComplete, this, NULL); |
54220df8 | 1889 | } |
94439e4e | 1890 | } |
1891 | ||
2bb867b5 | 1892 | void |
1893 | HttpStateData::RequestBodyHandlerWrapper(char *buf, ssize_t size, void *data) | |
94439e4e | 1894 | { |
9ed57c61 | 1895 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
2bb867b5 | 1896 | httpState->requestBodyHandler(buf, size); |
1897 | } | |
1898 | ||
1899 | void | |
1900 | HttpStateData::requestBodyHandler(char *buf, ssize_t size) | |
1901 | { | |
1902 | request_body_buf = NULL; | |
1903 | ||
1904 | if (eof || fd < 0) { | |
1905 | debugs(11, 1, HERE << "Transaction aborted while reading HTTP body"); | |
1906 | memFree8K(buf); | |
1907 | return; | |
1908 | } | |
62e76326 | 1909 | |
94439e4e | 1910 | if (size > 0) { |
2bb867b5 | 1911 | if (flags.headers_parsed && !flags.abuse_detected) { |
1912 | flags.abuse_detected = 1; | |
21b92762 | 1913 | debug(11, 1) ("httpSendRequestEntryDone: Likely proxy abuse detected '%s' -> '%s'\n", |
2bb867b5 | 1914 | inet_ntoa(orig_request->client_addr), |
1915 | storeUrl(entry)); | |
21b92762 | 1916 | |
2bb867b5 | 1917 | if (getReply()->sline.status == HTTP_INVALID_HEADER) { |
21b92762 | 1918 | memFree8K(buf); |
2bb867b5 | 1919 | comm_close(fd); |
21b92762 | 1920 | return; |
1921 | } | |
1922 | } | |
1923 | ||
2bb867b5 | 1924 | comm_old_write(fd, buf, size, SendRequestEntityWrapper, this, memFree8K); |
94439e4e | 1925 | } else if (size == 0) { |
62e76326 | 1926 | /* End of body */ |
1927 | memFree8K(buf); | |
2bb867b5 | 1928 | sendRequestEntityDone(fd); |
94439e4e | 1929 | } else { |
62e76326 | 1930 | /* Failed to get whole body, probably aborted */ |
1931 | memFree8K(buf); | |
2bb867b5 | 1932 | HttpStateData::SendComplete(fd, NULL, 0, COMM_ERR_CLOSING, this); |
b6a2f15e | 1933 | } |
376bb137 | 1934 | } |
1935 | ||
2bb867b5 | 1936 | void |
1937 | HttpStateData::SendRequestEntityWrapper(int fd, char *bufnotused, size_t size, comm_err_t errflag, void *data) | |
376bb137 | 1938 | { |
e6ccf245 | 1939 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
2bb867b5 | 1940 | httpState->sendRequestEntity(fd, size, errflag); |
1941 | } | |
1942 | ||
1943 | void | |
1944 | HttpStateData::sendRequestEntity(int fd, size_t size, comm_err_t errflag) | |
1945 | { | |
c3d63b2a | 1946 | debug(11, 5) ("httpSendRequestEntity: FD %d: size %d: errflag %d.\n", |
62e76326 | 1947 | fd, (int) size, errflag); |
1948 | ||
376bb137 | 1949 | if (size > 0) { |
62e76326 | 1950 | fd_bytes(fd, size, FD_WRITE); |
1951 | kb_incr(&statCounter.server.all.kbytes_out, size); | |
1952 | kb_incr(&statCounter.server.http.kbytes_out, size); | |
376bb137 | 1953 | } |
62e76326 | 1954 | |
376bb137 | 1955 | if (errflag == COMM_ERR_CLOSING) |
62e76326 | 1956 | return; |
1957 | ||
376bb137 | 1958 | if (errflag) { |
6cae5db1 | 1959 | ErrorState *err; |
4eb368f9 | 1960 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY); |
62e76326 | 1961 | err->xerrno = errno; |
2bb867b5 | 1962 | fwd->fail(err); |
62e76326 | 1963 | comm_close(fd); |
1964 | return; | |
376bb137 | 1965 | } |
62e76326 | 1966 | |
94439e4e | 1967 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1968 | comm_close(fd); |
1969 | return; | |
376bb137 | 1970 | } |
62e76326 | 1971 | |
2bb867b5 | 1972 | request_body_buf = (char *)memAllocate(MEM_8K_BUF); |
1973 | clientReadBody(orig_request, request_body_buf, 8192, RequestBodyHandlerWrapper, this); | |
54220df8 | 1974 | } |
ccf44862 | 1975 | |
1976 | void | |
450e0c10 | 1977 | httpBuildVersion(HttpVersion * version, unsigned int major, unsigned int minor) |
110eb4e5 | 1978 | { |
1979 | version->major = major; | |
1980 | version->minor = minor; | |
ccf44862 | 1981 | } |
2afaba07 | 1982 | |
1983 | #if ICAP_CLIENT | |
1984 | ||
1985 | static void | |
1986 | icapAclCheckDoneWrapper(ICAPServiceRep::Pointer service, void *data) | |
1987 | { | |
1988 | HttpStateData *http = (HttpStateData *)data; | |
1989 | http->icapAclCheckDone(service); | |
1990 | } | |
1991 | ||
1992 | void | |
1993 | HttpStateData::icapAclCheckDone(ICAPServiceRep::Pointer service) | |
1994 | { | |
1995 | icapAccessCheckPending = false; | |
1996 | ||
1997 | if (service == NULL) { | |
1998 | // handle case where no service is selected; | |
1999 | storeEntryReplaceObject(entry, reply); | |
2000 | ||
2afaba07 | 2001 | haveParsedReplyHeaders(); |
2002 | processReplyBody(); | |
2003 | ||
2004 | if (eof == 1) | |
2005 | transactionComplete(); | |
2006 | ||
2007 | return; | |
2008 | } | |
2009 | ||
2010 | if (doIcap(service) < 0) { | |
2011 | /* | |
2012 | * XXX Maybe instead of an error page we should | |
2013 | * handle the reply normally (without ICAP). | |
2014 | */ | |
2015 | ErrorState *err = errorCon(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR); | |
2016 | err->xerrno = errno; | |
2017 | err->request = requestLink(orig_request); | |
2018 | errorAppendEntry(entry, err); | |
2019 | comm_close(fd); | |
2020 | return; | |
2021 | } | |
2022 | ||
2023 | icap->startRespMod(this, request, reply); | |
2024 | processReplyBody(); | |
2025 | } | |
2026 | ||
2afaba07 | 2027 | /* |
2028 | * Called by ICAPClientRespmodPrecache when it has space available for us. | |
2029 | */ | |
2030 | void | |
2031 | HttpStateData::icapSpaceAvailable() | |
2032 | { | |
2033 | debug(11,5)("HttpStateData::icapSpaceAvailable() called\n"); | |
2034 | maybeReadData(); | |
2035 | } | |
2036 | ||
2037 | void | |
2038 | HttpStateData::takeAdaptedHeaders(HttpReply *rep) | |
2039 | { | |
2040 | debug(11,5)("HttpStateData::takeAdaptedHeaders() called\n"); | |
2041 | ||
2042 | if (!entry->isAccepting()) { | |
2043 | debug(11,5)("\toops, entry is not Accepting!\n"); | |
2044 | icap->ownerAbort(); | |
2045 | return; | |
2046 | } | |
2047 | ||
b559db5d | 2048 | assert (rep); |
2afaba07 | 2049 | storeEntryReplaceObject(entry, rep); |
4a56ee8d | 2050 | reply->unlock(); |
2afaba07 | 2051 | |
4a56ee8d | 2052 | reply = rep->lock() |
2053 | ||
2054 | ; | |
2afaba07 | 2055 | |
2056 | haveParsedReplyHeaders(); | |
2057 | ||
2058 | debug(11,5)("HttpStateData::takeAdaptedHeaders() finished\n"); | |
2059 | } | |
2060 | ||
2061 | void | |
2062 | HttpStateData::takeAdaptedBody(MemBuf *buf) | |
2063 | { | |
2064 | debug(11,5)("HttpStateData::takeAdaptedBody() called\n"); | |
1dd6edf2 | 2065 | debug(11,5)("\t%d bytes\n", (int) buf->contentSize()); |
2afaba07 | 2066 | debug(11,5)("\t%d is current offset\n", (int)currentOffset); |
2067 | ||
2068 | if (!entry->isAccepting()) { | |
2069 | debug(11,5)("\toops, entry is not Accepting!\n"); | |
2070 | icap->ownerAbort(); | |
2071 | return; | |
2072 | } | |
2073 | ||
2074 | entry->write(StoreIOBuffer(buf, currentOffset)); // write everything | |
2075 | currentOffset += buf->contentSize(); | |
2076 | buf->consume(buf->contentSize()); // consume everything written | |
2077 | } | |
2078 | ||
2079 | void | |
2080 | HttpStateData::doneAdapting() | |
2081 | { | |
2082 | debug(11,5)("HttpStateData::doneAdapting() called\n"); | |
2083 | ||
2084 | if (!entry->isAccepting()) { | |
2085 | debug(11,5)("\toops, entry is not Accepting!\n"); | |
2086 | icap->ownerAbort(); | |
2087 | } else { | |
b6b6f466 | 2088 | fwd->complete(); |
2afaba07 | 2089 | } |
2090 | ||
6965ab28 | 2091 | /* |
2092 | * ICAP is done, so we don't need this any more. | |
2093 | */ | |
2094 | delete icap; | |
2095 | ||
2096 | cbdataReferenceDone(icap); | |
2097 | ||
b559db5d | 2098 | if (fd >= 0) |
2099 | comm_close(fd); | |
2100 | else | |
2101 | httpStateFree(fd, this); | |
2afaba07 | 2102 | } |
2103 | ||
2104 | void | |
2105 | HttpStateData::abortAdapting() | |
2106 | { | |
2107 | debug(11,5)("HttpStateData::abortAdapting() called\n"); | |
2108 | ||
b559db5d | 2109 | /* |
2110 | * ICAP has given up, we're done with it too | |
2111 | */ | |
2112 | delete icap; | |
2113 | cbdataReferenceDone(icap); | |
2114 | ||
2afaba07 | 2115 | if (entry->isEmpty()) { |
2116 | ErrorState *err; | |
2117 | err = errorCon(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR); | |
2118 | err->request = requestLink((HttpRequest *) request); | |
2119 | err->xerrno = errno; | |
b6b6f466 | 2120 | fwd->fail( err); |
2121 | fwd->dontRetry(true); | |
2afaba07 | 2122 | flags.do_next_read = 0; |
2123 | } | |
2124 | ||
6c2d6c93 | 2125 | if (fd >= 0) { |
2126 | comm_close(fd); | |
2127 | } else { | |
2128 | httpStateFree(-1, this); // deletes this | |
2129 | } | |
2afaba07 | 2130 | } |
2131 | ||
2132 | #endif |