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da2b3a17 | 1 | |
30a4f2a8 | 2 | /* |
2cca9b7d | 3 | * $Id: http.cc,v 1.507 2006/09/20 06:29:10 adrian 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" |
aa839030 | 42 | #include "errorpage.h" |
0eb49b6d | 43 | #include "MemBuf.h" |
e6ccf245 | 44 | #include "http.h" |
f5691f9c | 45 | #include "AuthUserRequest.h" |
e6ccf245 | 46 | #include "Store.h" |
528b2c61 | 47 | #include "HttpReply.h" |
48 | #include "HttpRequest.h" | |
49 | #include "MemObject.h" | |
50 | #include "HttpHdrContRange.h" | |
b19dd748 | 51 | #include "HttpHdrSc.h" |
52 | #include "HttpHdrScTarget.h" | |
4fb35c3c | 53 | #include "ACLChecklist.h" |
21b92762 | 54 | #include "fde.h" |
b67e2c8c | 55 | #if DELAY_POOLS |
56 | #include "DelayPools.h" | |
57 | #endif | |
2afaba07 | 58 | #if ICAP_CLIENT |
59 | #include "ICAP/ICAPClientRespmodPrecache.h" | |
60 | #include "ICAP/ICAPConfig.h" | |
ab7ac359 | 61 | extern ICAPConfig TheICAPConfig; |
2afaba07 | 62 | #endif |
985c86bc | 63 | #include "SquidTime.h" |
e6ccf245 | 64 | |
2afaba07 | 65 | CBDATA_CLASS_INIT(HttpStateData); |
090089c4 | 66 | |
6bf8443a | 67 | static const char *const crlf = "\r\n"; |
4db43fab | 68 | |
9e4ad609 | 69 | static PF httpStateFree; |
70 | static PF httpTimeout; | |
f9cece6e | 71 | static void httpMaybeRemovePublic(StoreEntry *, http_status); |
190154cf | 72 | static void copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, String strConnection, HttpRequest * request, HttpRequest * orig_request, |
62e76326 | 73 | HttpHeader * hdr_out, int we_do_ranges, http_state_flags); |
2afaba07 | 74 | #if ICAP_CLIENT |
75 | static void icapAclCheckDoneWrapper(ICAPServiceRep::Pointer service, void *data); | |
76 | #endif | |
528b2c61 | 77 | |
253caccb | 78 | HttpStateData::HttpStateData(FwdState *theFwdState) : ServerStateData(theFwdState) |
2bb867b5 | 79 | { |
80 | debugs(11,5,HERE << "HttpStateData " << this << " created"); | |
a3d50c30 | 81 | ignoreCacheControl = false; |
82 | surrogateNoStore = false; | |
a3d50c30 | 83 | fd = fwd->server_fd; |
84 | readBuf = new MemBuf; | |
85 | readBuf->init(4096, SQUID_TCP_SO_RCVBUF); | |
6dd9f4bd | 86 | orig_request = HTTPMSGLOCK(fwd->request); |
a3d50c30 | 87 | |
88 | if (fwd->servers) | |
89 | _peer = fwd->servers->_peer; /* might be NULL */ | |
90 | ||
91 | if (_peer) { | |
92 | const char *url; | |
93 | ||
94 | if (_peer->options.originserver) | |
95 | url = orig_request->urlpath.buf(); | |
96 | else | |
97 | url = storeUrl(entry); | |
98 | ||
5cafad19 | 99 | HttpRequest * proxy_req = new HttpRequest(orig_request->method, |
100 | orig_request->protocol, url); | |
a3d50c30 | 101 | |
102 | xstrncpy(proxy_req->host, _peer->host, SQUIDHOSTNAMELEN); | |
103 | ||
104 | proxy_req->port = _peer->http_port; | |
105 | ||
106 | proxy_req->flags = orig_request->flags; | |
107 | ||
108 | proxy_req->lastmod = orig_request->lastmod; | |
109 | ||
110 | proxy_req->flags.proxying = 1; | |
111 | ||
6dd9f4bd | 112 | HTTPMSGUNLOCK(request); |
253caccb | 113 | |
6dd9f4bd | 114 | request = HTTPMSGLOCK(proxy_req); |
a3d50c30 | 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 | ||
a3d50c30 | 130 | } |
131 | ||
132 | /* | |
133 | * register the handler to free HTTP state data when the FD closes | |
134 | */ | |
135 | comm_add_close_handler(fd, httpStateFree, this); | |
2bb867b5 | 136 | } |
b8d8561b | 137 | |
2afaba07 | 138 | HttpStateData::~HttpStateData() |
f5558c95 | 139 | { |
253caccb | 140 | /* |
3b299123 | 141 | * don't forget that ~ServerStateData() gets called automatically |
253caccb | 142 | */ |
143 | ||
3b299123 | 144 | if (orig_request->body_reader != NULL) { |
145 | orig_request->body_reader = NULL; | |
146 | debugs(32,3,HERE << "setting body_reader = NULL for request " << orig_request); | |
21b92762 | 147 | } |
148 | ||
2afaba07 | 149 | if (!readBuf->isNull()) |
150 | readBuf->clean(); | |
62e76326 | 151 | |
2afaba07 | 152 | delete readBuf; |
153 | ||
6dd9f4bd | 154 | HTTPMSGUNLOCK(orig_request); |
2afaba07 | 155 | |
2bb867b5 | 156 | debugs(11,5,HERE << "HttpStateData " << this << " destroyed"); |
2afaba07 | 157 | } |
158 | ||
159 | static void | |
160 | httpStateFree(int fd, void *data) | |
161 | { | |
162 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
163 | debug(11,5)("httpStateFree: FD %d, httpState=%p\n", fd, data); | |
164 | ||
165 | if (httpState) | |
166 | delete httpState; | |
f5558c95 | 167 | } |
168 | ||
b8d8561b | 169 | int |
75e88d56 | 170 | httpCachable(method_t method) |
090089c4 | 171 | { |
090089c4 | 172 | /* GET and HEAD are cachable. Others are not. */ |
62e76326 | 173 | |
6eb42cae | 174 | if (method != METHOD_GET && method != METHOD_HEAD) |
62e76326 | 175 | return 0; |
176 | ||
090089c4 | 177 | /* else cachable */ |
178 | return 1; | |
179 | } | |
180 | ||
b8d8561b | 181 | static void |
5c5783a2 | 182 | httpTimeout(int fd, void *data) |
090089c4 | 183 | { |
e6ccf245 | 184 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
593c9a75 | 185 | StoreEntry *entry = httpState->entry; |
9fb13bb6 | 186 | debug(11, 4) ("httpTimeout: FD %d: '%s'\n", fd, storeUrl(entry)); |
62e76326 | 187 | |
12158bdc | 188 | if (entry->store_status == STORE_PENDING) { |
2cc81f1f | 189 | httpState->fwd->fail(errorCon(ERR_READ_TIMEOUT, HTTP_GATEWAY_TIMEOUT, httpState->fwd->request)); |
9b312a19 | 190 | } |
62e76326 | 191 | |
0d4d4170 | 192 | comm_close(fd); |
090089c4 | 193 | } |
194 | ||
f9cece6e | 195 | static void |
196 | httpMaybeRemovePublic(StoreEntry * e, http_status status) | |
197 | { | |
62e76326 | 198 | |
199 | int remove | |
200 | = 0; | |
201 | ||
7e3ce7b9 | 202 | int forbidden = 0; |
62e76326 | 203 | |
f9cece6e | 204 | StoreEntry *pe; |
62e76326 | 205 | |
d46a87a8 | 206 | if (!EBIT_TEST(e->flags, KEY_PRIVATE)) |
62e76326 | 207 | return; |
208 | ||
f9cece6e | 209 | switch (status) { |
62e76326 | 210 | |
f9cece6e | 211 | case HTTP_OK: |
62e76326 | 212 | |
f9cece6e | 213 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 214 | |
f9cece6e | 215 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 216 | |
f9cece6e | 217 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 218 | |
f9cece6e | 219 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 220 | |
f9cece6e | 221 | case HTTP_GONE: |
62e76326 | 222 | |
7e3ce7b9 | 223 | case HTTP_NOT_FOUND: |
62e76326 | 224 | |
225 | remove | |
226 | = 1; | |
227 | ||
228 | break; | |
229 | ||
7e3ce7b9 | 230 | case HTTP_FORBIDDEN: |
62e76326 | 231 | |
7e3ce7b9 | 232 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 233 | forbidden = 1; |
234 | ||
235 | break; | |
236 | ||
f9cece6e | 237 | #if WORK_IN_PROGRESS |
62e76326 | 238 | |
c8fd0193 | 239 | case HTTP_UNAUTHORIZED: |
62e76326 | 240 | forbidden = 1; |
241 | ||
242 | break; | |
243 | ||
f9cece6e | 244 | #endif |
62e76326 | 245 | |
f9cece6e | 246 | default: |
7e3ce7b9 | 247 | #if QUESTIONABLE |
62e76326 | 248 | /* |
249 | * Any 2xx response should eject previously cached entities... | |
250 | */ | |
abb929f0 | 251 | |
62e76326 | 252 | if (status >= 200 && status < 300) |
253 | remove | |
254 | = 1; | |
255 | ||
7e3ce7b9 | 256 | #endif |
62e76326 | 257 | |
258 | break; | |
f9cece6e | 259 | } |
62e76326 | 260 | |
261 | if (!remove | |
262 | && !forbidden) | |
263 | return; | |
264 | ||
f9cece6e | 265 | assert(e->mem_obj); |
62e76326 | 266 | |
f66a9ef4 | 267 | if (e->mem_obj->request) |
62e76326 | 268 | pe = storeGetPublicByRequest(e->mem_obj->request); |
f66a9ef4 | 269 | else |
62e76326 | 270 | pe = storeGetPublic(e->mem_obj->url, e->mem_obj->method); |
271 | ||
f66a9ef4 | 272 | if (pe != NULL) { |
62e76326 | 273 | assert(e != pe); |
5f33b71d | 274 | pe->release(); |
0856d155 | 275 | } |
62e76326 | 276 | |
7e3ce7b9 | 277 | /* |
278 | * Also remove any cached HEAD response in case the object has | |
279 | * changed. | |
280 | */ | |
f66a9ef4 | 281 | if (e->mem_obj->request) |
62e76326 | 282 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_HEAD); |
f66a9ef4 | 283 | else |
62e76326 | 284 | pe = storeGetPublic(e->mem_obj->url, METHOD_HEAD); |
285 | ||
f66a9ef4 | 286 | if (pe != NULL) { |
62e76326 | 287 | assert(e != pe); |
5f33b71d | 288 | pe->release(); |
7e3ce7b9 | 289 | } |
62e76326 | 290 | |
7e3ce7b9 | 291 | if (forbidden) |
62e76326 | 292 | return; |
293 | ||
7e3ce7b9 | 294 | switch (e->mem_obj->method) { |
62e76326 | 295 | |
7e3ce7b9 | 296 | case METHOD_PUT: |
62e76326 | 297 | |
7e3ce7b9 | 298 | case METHOD_DELETE: |
62e76326 | 299 | |
7e3ce7b9 | 300 | case METHOD_PROPPATCH: |
62e76326 | 301 | |
7e3ce7b9 | 302 | case METHOD_MKCOL: |
62e76326 | 303 | |
7e3ce7b9 | 304 | case METHOD_MOVE: |
62e76326 | 305 | |
42b51993 | 306 | case METHOD_BMOVE: |
62e76326 | 307 | |
42b51993 | 308 | case METHOD_BDELETE: |
62e76326 | 309 | /* |
310 | * Remove any cached GET object if it is beleived that the | |
311 | * object may have changed as a result of other methods | |
312 | */ | |
313 | ||
314 | if (e->mem_obj->request) | |
315 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_GET); | |
316 | else | |
317 | pe = storeGetPublic(e->mem_obj->url, METHOD_GET); | |
318 | ||
319 | if (pe != NULL) { | |
320 | assert(e != pe); | |
5f33b71d | 321 | pe->release(); |
62e76326 | 322 | } |
323 | ||
324 | break; | |
325 | ||
c8be6d7b | 326 | default: |
62e76326 | 327 | /* Keep GCC happy. The methods above are all mutating HTTP methods |
328 | */ | |
329 | break; | |
0856d155 | 330 | } |
f9cece6e | 331 | } |
332 | ||
43ae1d95 | 333 | void |
334 | HttpStateData::processSurrogateControl(HttpReply *reply) | |
335 | { | |
336 | #if ESI | |
337 | ||
338 | if (request->flags.accelerated && reply->surrogate_control) { | |
339 | HttpHdrScTarget *sctusable = | |
340 | httpHdrScGetMergedTarget(reply->surrogate_control, | |
341 | Config.Accel.surrogate_id); | |
342 | ||
343 | if (sctusable) { | |
344 | if (EBIT_TEST(sctusable->mask, SC_NO_STORE) || | |
345 | (Config.onoff.surrogate_is_remote | |
346 | && EBIT_TEST(sctusable->mask, SC_NO_STORE_REMOTE))) { | |
347 | surrogateNoStore = true; | |
5ed72359 | 348 | entry->makePrivate(); |
43ae1d95 | 349 | } |
350 | ||
351 | /* The HttpHeader logic cannot tell if the header it's parsing is a reply to an | |
352 | * accelerated request or not... | |
353 | * Still, this is an abtraction breach. - RC | |
354 | */ | |
355 | if (sctusable->max_age != -1) { | |
356 | if (sctusable->max_age < sctusable->max_stale) | |
357 | reply->expires = reply->date + sctusable->max_age; | |
358 | else | |
359 | reply->expires = reply->date + sctusable->max_stale; | |
360 | ||
361 | /* And update the timestamps */ | |
362 | storeTimestampsSet(entry); | |
363 | } | |
364 | ||
365 | /* We ignore cache-control directives as per the Surrogate specification */ | |
366 | ignoreCacheControl = true; | |
367 | ||
368 | httpHdrScTargetDestroy(sctusable); | |
369 | } | |
370 | } | |
371 | ||
372 | #endif | |
373 | } | |
374 | ||
924f73bc | 375 | int |
376 | HttpStateData::cacheableReply() | |
c54e9052 | 377 | { |
2afaba07 | 378 | HttpReply const *rep = getReply(); |
528b2c61 | 379 | HttpHeader const *hdr = &rep->header; |
d8b249ef | 380 | const int cc_mask = (rep->cache_control) ? rep->cache_control->mask : 0; |
c68e9c6b | 381 | const char *v; |
38f9c547 | 382 | #if HTTP_VIOLATIONS |
62e76326 | 383 | |
38f9c547 | 384 | const refresh_t *R = NULL; |
b6445726 | 385 | |
346be6ad | 386 | /* This strange looking define first looks up the refresh pattern |
b6445726 | 387 | * and then checks if the specified flag is set. The main purpose |
388 | * of this is to simplify the refresh pattern lookup and HTTP_VIOLATIONS | |
389 | * condition | |
390 | */ | |
391 | #define REFRESH_OVERRIDE(flag) \ | |
392 | ((R = (R ? R : refreshLimits(entry->mem_obj->url))) , \ | |
393 | (R && R->flags.flag)) | |
b445957e | 394 | #else |
395 | #define REFRESH_OVERRIDE(flag) 0 | |
38f9c547 | 396 | #endif |
43ae1d95 | 397 | |
38f9c547 | 398 | if (surrogateNoStore) |
62e76326 | 399 | return 0; |
400 | ||
924f73bc | 401 | if (!ignoreCacheControl) { |
38f9c547 | 402 | if (EBIT_TEST(cc_mask, CC_PRIVATE)) { |
b6445726 | 403 | if (!REFRESH_OVERRIDE(ignore_private)) |
38f9c547 | 404 | return 0; |
405 | } | |
406 | ||
407 | if (EBIT_TEST(cc_mask, CC_NO_CACHE)) { | |
b6445726 | 408 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 409 | return 0; |
410 | } | |
411 | ||
412 | if (EBIT_TEST(cc_mask, CC_NO_STORE)) { | |
b6445726 | 413 | if (!REFRESH_OVERRIDE(ignore_no_store)) |
38f9c547 | 414 | return 0; |
415 | } | |
43ae1d95 | 416 | } |
417 | ||
924f73bc | 418 | if (request->flags.auth) { |
62e76326 | 419 | /* |
420 | * Responses to requests with authorization may be cached | |
421 | * only if a Cache-Control: public reply header is present. | |
422 | * RFC 2068, sec 14.9.4 | |
423 | */ | |
424 | ||
38f9c547 | 425 | if (!EBIT_TEST(cc_mask, CC_PUBLIC)) { |
b6445726 | 426 | if (!REFRESH_OVERRIDE(ignore_auth)) |
38f9c547 | 427 | return 0; |
428 | } | |
a6dfe2d9 | 429 | } |
62e76326 | 430 | |
c68e9c6b | 431 | /* Pragma: no-cache in _replies_ is not documented in HTTP, |
432 | * but servers like "Active Imaging Webcast/2.0" sure do use it */ | |
a9925b40 | 433 | if (hdr->has(HDR_PRAGMA)) { |
434 | String s = hdr->getList(HDR_PRAGMA); | |
62e76326 | 435 | const int no_cache = strListIsMember(&s, "no-cache", ','); |
436 | s.clean(); | |
437 | ||
38f9c547 | 438 | if (no_cache) { |
b6445726 | 439 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 440 | return 0; |
441 | } | |
c68e9c6b | 442 | } |
62e76326 | 443 | |
c68e9c6b | 444 | /* |
445 | * The "multipart/x-mixed-replace" content type is used for | |
446 | * continuous push replies. These are generally dynamic and | |
447 | * probably should not be cachable | |
448 | */ | |
a9925b40 | 449 | if ((v = hdr->getStr(HDR_CONTENT_TYPE))) |
62e76326 | 450 | if (!strncasecmp(v, "multipart/x-mixed-replace", 25)) |
451 | return 0; | |
452 | ||
2afaba07 | 453 | switch (getReply()->sline.status) { |
62e76326 | 454 | /* Responses that are cacheable */ |
455 | ||
19a04dac | 456 | case HTTP_OK: |
62e76326 | 457 | |
19a04dac | 458 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 459 | |
19a04dac | 460 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 461 | |
19a04dac | 462 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 463 | |
19a04dac | 464 | case HTTP_GONE: |
62e76326 | 465 | /* |
466 | * Don't cache objects that need to be refreshed on next request, | |
467 | * unless we know how to refresh it. | |
468 | */ | |
469 | ||
924f73bc | 470 | if (!refreshIsCachable(entry)) |
62e76326 | 471 | return 0; |
472 | ||
473 | /* don't cache objects from peers w/o LMT, Date, or Expires */ | |
474 | /* check that is it enough to check headers @?@ */ | |
475 | if (rep->date > -1) | |
476 | return 1; | |
477 | else if (rep->last_modified > -1) | |
478 | return 1; | |
924f73bc | 479 | else if (!_peer) |
62e76326 | 480 | return 1; |
481 | ||
482 | /* @?@ (here and 302): invalid expires header compiles to squid_curtime */ | |
483 | else if (rep->expires > -1) | |
484 | return 1; | |
485 | else | |
486 | return 0; | |
487 | ||
488 | /* NOTREACHED */ | |
489 | break; | |
490 | ||
491 | /* Responses that only are cacheable if the server says so */ | |
492 | ||
19a04dac | 493 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 494 | if (rep->expires > -1) |
495 | return 1; | |
496 | else | |
497 | return 0; | |
498 | ||
499 | /* NOTREACHED */ | |
500 | break; | |
501 | ||
502 | /* Errors can be negatively cached */ | |
503 | ||
19a04dac | 504 | case HTTP_NO_CONTENT: |
62e76326 | 505 | |
19a04dac | 506 | case HTTP_USE_PROXY: |
62e76326 | 507 | |
19a04dac | 508 | case HTTP_BAD_REQUEST: |
62e76326 | 509 | |
19a04dac | 510 | case HTTP_FORBIDDEN: |
62e76326 | 511 | |
19a04dac | 512 | case HTTP_NOT_FOUND: |
62e76326 | 513 | |
19a04dac | 514 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 515 | |
19a04dac | 516 | case HTTP_REQUEST_URI_TOO_LARGE: |
62e76326 | 517 | |
19a04dac | 518 | case HTTP_INTERNAL_SERVER_ERROR: |
62e76326 | 519 | |
19a04dac | 520 | case HTTP_NOT_IMPLEMENTED: |
62e76326 | 521 | |
19a04dac | 522 | case HTTP_BAD_GATEWAY: |
62e76326 | 523 | |
19a04dac | 524 | case HTTP_SERVICE_UNAVAILABLE: |
62e76326 | 525 | |
19a04dac | 526 | case HTTP_GATEWAY_TIMEOUT: |
62e76326 | 527 | return -1; |
528 | ||
529 | /* NOTREACHED */ | |
530 | break; | |
531 | ||
532 | /* Some responses can never be cached */ | |
533 | ||
0cdcddb9 | 534 | case HTTP_PARTIAL_CONTENT: /* Not yet supported */ |
62e76326 | 535 | |
19a04dac | 536 | case HTTP_SEE_OTHER: |
62e76326 | 537 | |
19a04dac | 538 | case HTTP_NOT_MODIFIED: |
62e76326 | 539 | |
19a04dac | 540 | case HTTP_UNAUTHORIZED: |
62e76326 | 541 | |
19a04dac | 542 | case HTTP_PROXY_AUTHENTICATION_REQUIRED: |
62e76326 | 543 | |
0cdcddb9 | 544 | case HTTP_INVALID_HEADER: /* Squid header parsing error */ |
4eb368f9 | 545 | |
546 | case HTTP_HEADER_TOO_LARGE: | |
62e76326 | 547 | return 0; |
548 | ||
c54e9052 | 549 | default: /* Unknown status code */ |
924f73bc | 550 | debug (11,0)("HttpStateData::cacheableReply: unknown http status code in reply\n"); |
62e76326 | 551 | |
552 | return 0; | |
553 | ||
554 | /* NOTREACHED */ | |
555 | break; | |
c54e9052 | 556 | } |
62e76326 | 557 | |
79d39a72 | 558 | /* NOTREACHED */ |
c54e9052 | 559 | } |
090089c4 | 560 | |
f66a9ef4 | 561 | /* |
562 | * For Vary, store the relevant request headers as | |
563 | * virtual headers in the reply | |
564 | * Returns false if the variance cannot be stored | |
565 | */ | |
566 | const char * | |
190154cf | 567 | httpMakeVaryMark(HttpRequest * request, HttpReply const * reply) |
f66a9ef4 | 568 | { |
f66a9ef4 | 569 | String vary, hdr; |
570 | const char *pos = NULL; | |
571 | const char *item; | |
572 | const char *value; | |
573 | int ilen; | |
528b2c61 | 574 | static String vstr; |
f66a9ef4 | 575 | |
528b2c61 | 576 | vstr.clean(); |
a9925b40 | 577 | vary = reply->header.getList(HDR_VARY); |
62e76326 | 578 | |
f66a9ef4 | 579 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 580 | char *name = (char *)xmalloc(ilen + 1); |
581 | xstrncpy(name, item, ilen + 1); | |
582 | Tolower(name); | |
9776e3cc | 583 | |
584 | if (strcmp(name, "*") == 0) { | |
585 | /* Can not handle "Vary: *" withtout ETag support */ | |
586 | safe_free(name); | |
587 | vstr.clean(); | |
588 | break; | |
589 | } | |
590 | ||
62e76326 | 591 | strListAdd(&vstr, name, ','); |
a9925b40 | 592 | hdr = request->header.getByName(name); |
62e76326 | 593 | safe_free(name); |
594 | value = hdr.buf(); | |
595 | ||
596 | if (value) { | |
597 | value = rfc1738_escape_part(value); | |
598 | vstr.append("=\"", 2); | |
599 | vstr.append(value); | |
600 | vstr.append("\"", 1); | |
601 | } | |
602 | ||
603 | hdr.clean(); | |
f66a9ef4 | 604 | } |
62e76326 | 605 | |
528b2c61 | 606 | vary.clean(); |
f66a9ef4 | 607 | #if X_ACCELERATOR_VARY |
62e76326 | 608 | |
aa38be4a | 609 | pos = NULL; |
a9925b40 | 610 | vary = reply->header.getList(HDR_X_ACCELERATOR_VARY); |
62e76326 | 611 | |
f66a9ef4 | 612 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 613 | char *name = (char *)xmalloc(ilen + 1); |
614 | xstrncpy(name, item, ilen + 1); | |
615 | Tolower(name); | |
616 | strListAdd(&vstr, name, ','); | |
a9925b40 | 617 | hdr = request->header.getByName(name); |
62e76326 | 618 | safe_free(name); |
619 | value = hdr.buf(); | |
620 | ||
621 | if (value) { | |
622 | value = rfc1738_escape_part(value); | |
623 | vstr.append("=\"", 2); | |
624 | vstr.append(value); | |
625 | vstr.append("\"", 1); | |
626 | } | |
627 | ||
628 | hdr.clean(); | |
f66a9ef4 | 629 | } |
62e76326 | 630 | |
528b2c61 | 631 | vary.clean(); |
f66a9ef4 | 632 | #endif |
62e76326 | 633 | |
528b2c61 | 634 | debug(11, 3) ("httpMakeVaryMark: %s\n", vstr.buf()); |
635 | return vstr.buf(); | |
f66a9ef4 | 636 | } |
637 | ||
4eb368f9 | 638 | void |
639 | HttpStateData::failReply(HttpReply *reply, http_status const & status) | |
640 | { | |
641 | reply->sline.version = HttpVersion(1, 0); | |
642 | reply->sline.status = status; | |
db237875 | 643 | entry->replaceHttpReply(reply); |
4eb368f9 | 644 | |
645 | if (eof == 1) { | |
2afaba07 | 646 | transactionComplete(); |
4eb368f9 | 647 | } |
648 | } | |
649 | ||
2afaba07 | 650 | void |
651 | HttpStateData::keepaliveAccounting(HttpReply *reply) | |
652 | { | |
653 | if (flags.keepalive) | |
654 | if (_peer) | |
655 | _peer->stats.n_keepalives_sent++; | |
656 | ||
657 | if (reply->keep_alive) { | |
658 | if (_peer) | |
659 | _peer->stats.n_keepalives_recv++; | |
660 | ||
661 | if (Config.onoff.detect_broken_server_pconns && reply->bodySize(request->method) == -1) { | |
662 | debug(11, 1) ("keepaliveAccounting: Impossible keep-alive header from '%s'\n", storeUrl(entry)); | |
663 | // debug(11, 2) ("GOT HTTP REPLY HDR:\n---------\n%s\n----------\n", readBuf->content()); | |
664 | flags.keepalive_broken = 1; | |
665 | } | |
666 | } | |
667 | } | |
668 | ||
669 | void | |
670 | HttpStateData::checkDateSkew(HttpReply *reply) | |
671 | { | |
672 | if (reply->date > -1 && !_peer) { | |
673 | int skew = abs((int)(reply->date - squid_curtime)); | |
674 | ||
675 | if (skew > 86400) | |
676 | debug(11, 3) ("%s's clock is skewed by %d seconds!\n", | |
677 | request->host, skew); | |
678 | } | |
679 | } | |
680 | ||
681 | /* | |
4eb368f9 | 682 | * This creates the error page itself.. its likely |
683 | * that the forward ported reply header max size patch | |
684 | * generates non http conformant error pages - in which | |
685 | * case the errors where should be 'BAD_GATEWAY' etc | |
686 | */ | |
b8d8561b | 687 | void |
2afaba07 | 688 | HttpStateData::processReplyHeader() |
f5558c95 | 689 | { |
528b2c61 | 690 | /* Creates a blank header. If this routine is made incremental, this will |
691 | * not do | |
692 | */ | |
4a56ee8d | 693 | HttpReply *newrep = new HttpReply; |
82384411 | 694 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
2afaba07 | 695 | debug(11, 3) ("processReplyHeader: key '%s'\n", entry->getMD5Text()); |
62e76326 | 696 | |
1a98175f | 697 | assert(!flags.headers_parsed); |
62e76326 | 698 | |
2afaba07 | 699 | http_status error = HTTP_STATUS_NONE; |
62e76326 | 700 | |
4a56ee8d | 701 | const bool parsed = newrep->parse(readBuf, eof, &error); |
62e76326 | 702 | |
2afaba07 | 703 | if (!parsed && error > 0) { // unrecoverable parsing error |
704 | debugs(11, 3, "processReplyHeader: Non-HTTP-compliant header: '" << readBuf->content() << "'"); | |
1a98175f | 705 | flags.headers_parsed = 1; |
2afaba07 | 706 | // negated result yields http_status |
4a56ee8d | 707 | failReply (newrep, error); |
82384411 | 708 | ctx_exit(ctx); |
4eb368f9 | 709 | return; |
710 | } | |
62e76326 | 711 | |
2afaba07 | 712 | if (!parsed) { // need more data |
713 | assert(!error); | |
714 | assert(!eof); | |
4a56ee8d | 715 | delete newrep; |
82384411 | 716 | ctx_exit(ctx); |
62e76326 | 717 | return; |
f5558c95 | 718 | } |
62e76326 | 719 | |
6dd9f4bd | 720 | reply = HTTPMSGLOCK(newrep); |
4a56ee8d | 721 | |
9bc73deb | 722 | debug(11, 9) ("GOT HTTP REPLY HDR:\n---------\n%s\n----------\n", |
2afaba07 | 723 | readBuf->content()); |
4eb368f9 | 724 | |
6965ab28 | 725 | readBuf->consume(headersEnd(readBuf->content(), readBuf->contentSize())); |
4a56ee8d | 726 | |
6965ab28 | 727 | flags.headers_parsed = 1; |
728 | ||
2afaba07 | 729 | keepaliveAccounting(reply); |
47ac2ebe | 730 | |
2afaba07 | 731 | checkDateSkew(reply); |
47ac2ebe | 732 | |
43ae1d95 | 733 | processSurrogateControl (reply); |
528b2c61 | 734 | |
735 | /* TODO: IF the reply is a 1.0 reply, AND it has a Connection: Header | |
736 | * Parse the header and remove all referenced headers | |
737 | */ | |
738 | ||
2afaba07 | 739 | #if ICAP_CLIENT |
740 | ||
ab7ac359 | 741 | if (TheICAPConfig.onoff) { |
2afaba07 | 742 | ICAPAccessCheck *icap_access_check = |
743 | new ICAPAccessCheck(ICAP::methodRespmod, ICAP::pointPreCache, request, reply, icapAclCheckDoneWrapper, this); | |
744 | ||
745 | icapAccessCheckPending = true; | |
746 | icap_access_check->check(); // will eventually delete self | |
747 | ctx_exit(ctx); | |
748 | return; | |
749 | } | |
ab7ac359 | 750 | |
2afaba07 | 751 | #endif |
752 | ||
db237875 | 753 | entry->replaceHttpReply(reply); |
2afaba07 | 754 | |
2afaba07 | 755 | haveParsedReplyHeaders(); |
756 | ||
757 | if (eof == 1) { | |
758 | transactionComplete(); | |
759 | } | |
760 | ||
761 | ctx_exit(ctx); | |
762 | } | |
763 | ||
764 | /* | |
765 | * This function used to be joined with processReplyHeader(), but | |
766 | * we split it for ICAP. | |
767 | */ | |
768 | void | |
769 | HttpStateData::haveParsedReplyHeaders() | |
770 | { | |
771 | Ctx ctx = ctx_enter(entry->mem_obj->url); | |
772 | ||
773 | if (getReply()->sline.status == HTTP_PARTIAL_CONTENT && | |
774 | getReply()->content_range) | |
775 | currentOffset = getReply()->content_range->spec.offset; | |
62e76326 | 776 | |
9bc73deb | 777 | storeTimestampsSet(entry); |
62e76326 | 778 | |
9bc73deb | 779 | /* Check if object is cacheable or not based on reply code */ |
2afaba07 | 780 | debug(11, 3) ("haveParsedReplyHeaders: HTTP CODE: %d\n", getReply()->sline.status); |
62e76326 | 781 | |
9bc73deb | 782 | if (neighbors_do_private_keys) |
2afaba07 | 783 | httpMaybeRemovePublic(entry, getReply()->sline.status); |
e6ccf245 | 784 | |
a9925b40 | 785 | if (getReply()->header.has(HDR_VARY) |
f66a9ef4 | 786 | #if X_ACCELERATOR_VARY |
a9925b40 | 787 | || getReply()->header.has(HDR_X_ACCELERATOR_VARY) |
f66a9ef4 | 788 | #endif |
4b44c907 | 789 | ) { |
2afaba07 | 790 | const char *vary = httpMakeVaryMark(orig_request, getReply()); |
4b44c907 | 791 | |
792 | if (!vary) { | |
5ed72359 | 793 | entry->makePrivate(); |
4b44c907 | 794 | goto no_cache; |
795 | ||
62e76326 | 796 | } |
797 | ||
4b44c907 | 798 | entry->mem_obj->vary_headers = xstrdup(vary); |
799 | } | |
800 | ||
2afaba07 | 801 | #if WIP_FWD_LOG |
802 | fwdStatus(fwd, s); | |
803 | ||
804 | #endif | |
805 | /* | |
806 | * If its not a reply that we will re-forward, then | |
807 | * allow the client to get it. | |
808 | */ | |
b6b6f466 | 809 | if (!fwd->reforwardableStatus(getReply()->sline.status)) |
2afaba07 | 810 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); |
811 | ||
4b44c907 | 812 | switch (cacheableReply()) { |
813 | ||
814 | case 1: | |
5ed72359 | 815 | entry->makePublic(); |
62e76326 | 816 | break; |
817 | ||
9bc73deb | 818 | case 0: |
5ed72359 | 819 | entry->makePrivate(); |
62e76326 | 820 | break; |
821 | ||
9bc73deb | 822 | case -1: |
4b44c907 | 823 | |
824 | if (Config.negativeTtl > 0) | |
5ed72359 | 825 | entry->cacheNegatively(); |
4b44c907 | 826 | else |
5ed72359 | 827 | entry->makePrivate(); |
4b44c907 | 828 | |
62e76326 | 829 | break; |
830 | ||
9bc73deb | 831 | default: |
62e76326 | 832 | assert(0); |
4b44c907 | 833 | |
62e76326 | 834 | break; |
9bc73deb | 835 | } |
62e76326 | 836 | |
4b44c907 | 837 | no_cache: |
838 | ||
2afaba07 | 839 | if (!ignoreCacheControl && getReply()->cache_control) { |
840 | if (EBIT_TEST(getReply()->cache_control->mask, CC_PROXY_REVALIDATE)) | |
62e76326 | 841 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
2afaba07 | 842 | else if (EBIT_TEST(getReply()->cache_control->mask, CC_MUST_REVALIDATE)) |
62e76326 | 843 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
9bc73deb | 844 | } |
62e76326 | 845 | |
9bc73deb | 846 | ctx_exit(ctx); |
c3609322 | 847 | #if HEADERS_LOG |
62e76326 | 848 | |
2afaba07 | 849 | headersLog(1, 0, request->method, getReply()); |
c3609322 | 850 | #endif |
f5558c95 | 851 | } |
852 | ||
528b2c61 | 853 | HttpStateData::ConnectionStatus |
854 | HttpStateData::statusIfComplete() const | |
603a02fd | 855 | { |
2afaba07 | 856 | HttpReply const *rep = getReply(); |
528b2c61 | 857 | /* If the reply wants to close the connection, it takes precedence */ |
62e76326 | 858 | |
2afaba07 | 859 | if (httpHeaderHasConnDir(&rep->header, "close")) |
62e76326 | 860 | return COMPLETE_NONPERSISTENT_MSG; |
861 | ||
528b2c61 | 862 | /* If we didn't send a keep-alive request header, then this |
978e455f | 863 | * can not be a persistent connection. |
864 | */ | |
528b2c61 | 865 | if (!flags.keepalive) |
62e76326 | 866 | return COMPLETE_NONPERSISTENT_MSG; |
867 | ||
72b63f06 | 868 | /* |
869 | * If we haven't sent the whole request then this can not be a persistent | |
870 | * connection. | |
871 | */ | |
872 | if (!flags.request_sent) { | |
2afdbf48 | 873 | debug(11, 1) ("statusIfComplete: Request not yet fully sent \"%s %s\"\n", |
72b63f06 | 874 | RequestMethodStr[orig_request->method], |
875 | storeUrl(entry)); | |
876 | return COMPLETE_NONPERSISTENT_MSG; | |
877 | } | |
878 | ||
9f5a2895 | 879 | /* |
880 | * What does the reply have to say about keep-alive? | |
881 | */ | |
b6a2f15e | 882 | /* |
883 | * XXX BUG? | |
884 | * If the origin server (HTTP/1.0) does not send a keep-alive | |
885 | * header, but keeps the connection open anyway, what happens? | |
886 | * We'll return here and http.c waits for an EOF before changing | |
887 | * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT | |
888 | * and an error status code, and we might have to wait until | |
889 | * the server times out the socket. | |
890 | */ | |
2afaba07 | 891 | if (!rep->keep_alive) |
528b2c61 | 892 | return COMPLETE_NONPERSISTENT_MSG; |
62e76326 | 893 | |
528b2c61 | 894 | return COMPLETE_PERSISTENT_MSG; |
895 | } | |
896 | ||
897 | HttpStateData::ConnectionStatus | |
898 | HttpStateData::persistentConnStatus() const | |
899 | { | |
528b2c61 | 900 | int clen; |
2afaba07 | 901 | debug(11, 3) ("persistentConnStatus: FD %d\n", fd); |
528b2c61 | 902 | ConnectionStatus result = statusIfComplete(); |
2afaba07 | 903 | debug(11, 5) ("persistentConnStatus: content_length=%d\n", |
62e76326 | 904 | reply->content_length); |
35282fbf | 905 | /* If we haven't seen the end of reply headers, we are not done */ |
62e76326 | 906 | |
2afaba07 | 907 | debug(11,5)("persistentConnStatus: flags.headers_parsed=%d\n", flags.headers_parsed); |
908 | ||
1a98175f | 909 | if (!flags.headers_parsed) |
62e76326 | 910 | return INCOMPLETE_MSG; |
911 | ||
06a5ae20 | 912 | clen = reply->bodySize(request->method); |
62e76326 | 913 | |
2afaba07 | 914 | debug(11,5)("persistentConnStatus: clen=%d\n", clen); |
915 | ||
35282fbf | 916 | /* If there is no message body, we can be persistent */ |
917 | if (0 == clen) | |
62e76326 | 918 | return result; |
919 | ||
35282fbf | 920 | /* If the body size is unknown we must wait for EOF */ |
921 | if (clen < 0) | |
62e76326 | 922 | return INCOMPLETE_MSG; |
923 | ||
35282fbf | 924 | /* If the body size is known, we must wait until we've gotten all of it. */ |
2afaba07 | 925 | /* old technique: |
926 | * if (entry->mem_obj->endOffset() < reply->content_length + reply->hdr_sz) */ | |
927 | debug(11,5)("persistentConnStatus: body_bytes_read=%d, content_length=%d\n", | |
928 | body_bytes_read, reply->content_length); | |
929 | ||
930 | if (body_bytes_read < reply->content_length) | |
62e76326 | 931 | return INCOMPLETE_MSG; |
932 | ||
35282fbf | 933 | /* We got it all */ |
528b2c61 | 934 | return result; |
603a02fd | 935 | } |
090089c4 | 936 | |
2afaba07 | 937 | /* |
938 | * This is the callback after some data has been read from the network | |
939 | */ | |
e5ee81f0 | 940 | void |
941 | HttpStateData::ReadReplyWrapper(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data) | |
c4b7a5a9 | 942 | { |
943 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
7194987f | 944 | assert (fd == httpState->fd); |
2afaba07 | 945 | // assert(buf == readBuf->content()); |
1d5161bd | 946 | PROF_start(HttpStateData_readReply); |
2afaba07 | 947 | httpState->readReply (len, flag, xerrno); |
1d5161bd | 948 | PROF_stop(HttpStateData_readReply); |
c4b7a5a9 | 949 | } |
950 | ||
2afdbf48 | 951 | /* XXX this function is too long! */ |
c4b7a5a9 | 952 | void |
2afaba07 | 953 | HttpStateData::readReply (size_t len, comm_err_t flag, int xerrno) |
090089c4 | 954 | { |
30a4f2a8 | 955 | int bin; |
090089c4 | 956 | int clen; |
f61f0107 | 957 | flags.do_next_read = 0; |
c4b7a5a9 | 958 | |
2afaba07 | 959 | /* |
960 | * Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us | |
961 | */ | |
62e76326 | 962 | |
c4b7a5a9 | 963 | if (flag == COMM_ERR_CLOSING) { |
d09176e1 | 964 | debug (11,3)("http socket closing\n"); |
c4b7a5a9 | 965 | return; |
966 | } | |
967 | ||
e92e4e44 | 968 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 969 | maybeReadData(); |
970 | return; | |
e92e4e44 | 971 | } |
c4b7a5a9 | 972 | |
1513873c | 973 | errno = 0; |
c4b7a5a9 | 974 | /* prepare the read size for the next read (if any) */ |
62e76326 | 975 | |
c4b7a5a9 | 976 | debug(11, 5) ("httpReadReply: FD %d: len %d.\n", fd, (int)len); |
62e76326 | 977 | |
c4b7a5a9 | 978 | if (flag == COMM_OK && len > 0) { |
2afaba07 | 979 | readBuf->appended(len); |
447e176b | 980 | #if DELAY_POOLS |
2afaba07 | 981 | |
982 | DelayId delayId = entry->mem_obj->mostBytesAllowed(); | |
62e76326 | 983 | delayId.bytesIn(len); |
447e176b | 984 | #endif |
62e76326 | 985 | |
986 | kb_incr(&statCounter.server.all.kbytes_in, len); | |
987 | kb_incr(&statCounter.server.http.kbytes_in, len); | |
62e76326 | 988 | IOStats.Http.reads++; |
989 | ||
990 | for (clen = len - 1, bin = 0; clen; bin++) | |
991 | clen >>= 1; | |
992 | ||
993 | IOStats.Http.read_hist[bin]++; | |
30a4f2a8 | 994 | } |
62e76326 | 995 | |
5fa061b8 | 996 | /* here the RFC says we should ignore whitespace between replies, but we can't as |
997 | * doing so breaks HTTP/0.9 replies beginning with witespace, and in addition | |
998 | * the response splitting countermeasures is extremely likely to trigger on this, | |
999 | * not allowing connection reuse in the first place. | |
1000 | */ | |
1001 | #if DONT_DO_THIS | |
1a98175f | 1002 | if (!flags.headers_parsed && flag == COMM_OK && len > 0 && fd_table[fd].uses > 1) { |
5fa061b8 | 1003 | /* Skip whitespace between replies */ |
62e76326 | 1004 | |
5fa061b8 | 1005 | while (len > 0 && isspace(*buf)) |
62e76326 | 1006 | xmemmove(buf, buf + 1, len--); |
1007 | ||
1008 | if (len == 0) { | |
1009 | /* Continue to read... */ | |
21b92762 | 1010 | /* Timeout NOT increased. This whitespace was from previous reply */ |
f61f0107 | 1011 | flags.do_next_read = 1; |
62e76326 | 1012 | maybeReadData(); |
1013 | return; | |
1014 | } | |
5ede6c8f | 1015 | } |
62e76326 | 1016 | |
5fa061b8 | 1017 | #endif |
1018 | ||
c4b7a5a9 | 1019 | if (flag != COMM_OK || len < 0) { |
62e76326 | 1020 | debug(50, 2) ("httpReadReply: FD %d: read failure: %s.\n", |
1021 | fd, xstrerror()); | |
1022 | ||
1023 | if (ignoreErrno(errno)) { | |
f61f0107 | 1024 | flags.do_next_read = 1; |
6cae5db1 | 1025 | } else { |
62e76326 | 1026 | ErrorState *err; |
2cc81f1f | 1027 | err = errorCon(ERR_READ_ERROR, HTTP_BAD_GATEWAY, fwd->request); |
62e76326 | 1028 | err->xerrno = errno; |
b6b6f466 | 1029 | fwd->fail(err); |
f61f0107 | 1030 | flags.do_next_read = 0; |
62e76326 | 1031 | comm_close(fd); |
62e76326 | 1032 | } |
2afaba07 | 1033 | } else if (flag == COMM_OK && len == 0 && !flags.headers_parsed) { |
2cc81f1f | 1034 | fwd->fail(errorCon(ERR_ZERO_SIZE_OBJECT, HTTP_BAD_GATEWAY, fwd->request)); |
62e76326 | 1035 | eof = 1; |
f61f0107 | 1036 | flags.do_next_read = 0; |
62e76326 | 1037 | comm_close(fd); |
c4b7a5a9 | 1038 | } else if (flag == COMM_OK && len == 0) { |
62e76326 | 1039 | /* Connection closed; retrieval done. */ |
1040 | eof = 1; | |
1041 | ||
2cca9b7d | 1042 | if (!flags.headers_parsed) { |
62e76326 | 1043 | /* |
3f7d66c7 | 1044 | * When we called processReplyHeader() before, we |
1a98175f | 1045 | * didn't find the end of headers, but now we are |
1046 | * definately at EOF, so we want to process the reply | |
1047 | * headers. | |
62e76326 | 1048 | */ |
2cca9b7d | 1049 | PROF_start(HttpStateData_processReplyHeader); |
2afaba07 | 1050 | processReplyHeader(); |
2cca9b7d | 1051 | PROF_stop(HttpStateData_processReplyHeader); |
1052 | } | |
2afaba07 | 1053 | else if (getReply()->sline.status == HTTP_INVALID_HEADER && HttpVersion(0,9) != getReply()->sline.version) { |
2cc81f1f | 1054 | fwd->fail(errorCon(ERR_INVALID_RESP, HTTP_BAD_GATEWAY, fwd->request)); |
f61f0107 | 1055 | flags.do_next_read = 0; |
47ac2ebe | 1056 | } else { |
4eb368f9 | 1057 | if (entry->mem_obj->getReply()->sline.status == HTTP_HEADER_TOO_LARGE) { |
4eb368f9 | 1058 | storeEntryReset(entry); |
2cc81f1f | 1059 | fwd->fail( errorCon(ERR_TOO_BIG, HTTP_BAD_GATEWAY, fwd->request)); |
b6b6f466 | 1060 | fwd->dontRetry(true); |
2afaba07 | 1061 | flags.do_next_read = 0; |
1062 | comm_close(fd); | |
4eb368f9 | 1063 | } else { |
2afaba07 | 1064 | transactionComplete(); |
4eb368f9 | 1065 | } |
62e76326 | 1066 | } |
090089c4 | 1067 | } else { |
1a98175f | 1068 | if (!flags.headers_parsed) { |
2cca9b7d | 1069 | PROF_start(HttpStateData_processReplyHeader); |
2afaba07 | 1070 | processReplyHeader(); |
2cca9b7d | 1071 | PROF_stop(HttpStateData_processReplyHeader); |
62e76326 | 1072 | |
1a98175f | 1073 | if (flags.headers_parsed) { |
42f79b17 | 1074 | bool fail = reply == NULL; |
47ac2ebe | 1075 | |
42f79b17 | 1076 | if (!fail) { |
1077 | http_status s = getReply()->sline.status; | |
1078 | HttpVersion httpver = getReply()->sline.version; | |
1079 | fail = s == HTTP_INVALID_HEADER && httpver != HttpVersion(0,9); | |
1080 | } | |
1081 | ||
1082 | if (fail) { | |
47ac2ebe | 1083 | storeEntryReset(entry); |
2cc81f1f | 1084 | fwd->fail( errorCon(ERR_INVALID_RESP, HTTP_BAD_GATEWAY, fwd->request)); |
47ac2ebe | 1085 | comm_close(fd); |
1086 | return; | |
1087 | } | |
1088 | ||
2afaba07 | 1089 | } |
1090 | } | |
1091 | ||
1092 | PROF_start(HttpStateData_processReplyBody); | |
1093 | processReplyBody(); | |
1094 | PROF_stop(HttpStateData_processReplyBody); | |
1095 | } | |
1096 | } | |
1097 | ||
1098 | /* | |
1099 | * Call this when there is data from the origin server | |
1100 | * which should be sent to either StoreEntry, or to ICAP... | |
1101 | */ | |
1102 | void | |
1103 | HttpStateData::writeReplyBody(const char *data, int len) | |
1104 | { | |
1105 | #if ICAP_CLIENT | |
62e76326 | 1106 | |
2afaba07 | 1107 | if (icap) { |
1108 | icap->sendMoreData (StoreIOBuffer(len, 0, (char*)data)); | |
1109 | return; | |
1110 | } | |
47ac2ebe | 1111 | |
225644d7 | 1112 | #endif |
62e76326 | 1113 | |
2afaba07 | 1114 | entry->write (StoreIOBuffer(len, currentOffset, (char*)data)); |
62e76326 | 1115 | |
2afaba07 | 1116 | currentOffset += len; |
e6ccf245 | 1117 | } |
1118 | ||
2afaba07 | 1119 | /* |
1120 | * processReplyBody has two purposes: | |
1121 | * 1 - take the reply body data, if any, and put it into either | |
1122 | * the StoreEntry, or give it over to ICAP. | |
1123 | * 2 - see if we made it to the end of the response (persistent | |
1124 | * connections and such) | |
1125 | */ | |
e6ccf245 | 1126 | void |
2afaba07 | 1127 | HttpStateData::processReplyBody() |
e6ccf245 | 1128 | { |
1a98175f | 1129 | if (!flags.headers_parsed) { |
f61f0107 | 1130 | flags.do_next_read = 1; |
62e76326 | 1131 | maybeReadData(); |
1132 | return; | |
528b2c61 | 1133 | } |
62e76326 | 1134 | |
2afaba07 | 1135 | #if ICAP_CLIENT |
1136 | if (icapAccessCheckPending) | |
1137 | return; | |
62e76326 | 1138 | |
2afaba07 | 1139 | #endif |
62e76326 | 1140 | |
2afaba07 | 1141 | /* |
1142 | * At this point the reply headers have been parsed and consumed. | |
1143 | * That means header content has been removed from readBuf and | |
1144 | * it contains only body data. | |
1145 | */ | |
1146 | writeReplyBody(readBuf->content(), readBuf->contentSize()); | |
62e76326 | 1147 | |
2afaba07 | 1148 | body_bytes_read += readBuf->contentSize(); |
1149 | ||
1150 | readBuf->consume(readBuf->contentSize()); | |
528b2c61 | 1151 | |
e6ccf245 | 1152 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1153 | /* |
2afaba07 | 1154 | * the above writeReplyBody() call could ABORT this entry, |
62e76326 | 1155 | * in that case, the server FD should already be closed. |
1156 | * there's nothing for us to do. | |
1157 | */ | |
1158 | (void) 0; | |
1159 | } else | |
1160 | switch (persistentConnStatus()) { | |
1161 | ||
1162 | case INCOMPLETE_MSG: | |
2afaba07 | 1163 | debug(11,5)("processReplyBody: INCOMPLETE_MSG\n"); |
21b92762 | 1164 | /* Wait for more data or EOF condition */ |
1165 | ||
1166 | if (flags.keepalive_broken) { | |
1167 | commSetTimeout(fd, 10, NULL, NULL); | |
1168 | } else { | |
1169 | commSetTimeout(fd, Config.Timeout.read, NULL, NULL); | |
1170 | } | |
1171 | ||
f61f0107 | 1172 | flags.do_next_read = 1; |
62e76326 | 1173 | break; |
1174 | ||
1175 | case COMPLETE_PERSISTENT_MSG: | |
2afaba07 | 1176 | debug(11,5)("processReplyBody: COMPLETE_PERSISTENT_MSG\n"); |
62e76326 | 1177 | /* yes we have to clear all these! */ |
62e76326 | 1178 | commSetTimeout(fd, -1, NULL, NULL); |
f61f0107 | 1179 | flags.do_next_read = 0; |
62e76326 | 1180 | |
1181 | comm_remove_close_handler(fd, httpStateFree, this); | |
b6b6f466 | 1182 | fwd->unregister(fd); |
bd0723ad | 1183 | |
1184 | if (_peer) { | |
1185 | if (_peer->options.originserver) | |
b6b6f466 | 1186 | fwd->pconnPush(fd, _peer->name, orig_request->port, orig_request->host); |
bd0723ad | 1187 | else |
b6b6f466 | 1188 | fwd->pconnPush(fd, _peer->name, _peer->http_port, NULL); |
bd0723ad | 1189 | } else { |
b6b6f466 | 1190 | fwd->pconnPush(fd, request->host, request->port, NULL); |
bd0723ad | 1191 | } |
1192 | ||
62e76326 | 1193 | fd = -1; |
2afaba07 | 1194 | |
1195 | transactionComplete(); | |
62e76326 | 1196 | return; |
1197 | ||
1198 | case COMPLETE_NONPERSISTENT_MSG: | |
2afaba07 | 1199 | debug(11,5)("processReplyBody: COMPLETE_NONPERSISTENT_MSG\n"); |
1200 | transactionComplete(); | |
62e76326 | 1201 | return; |
1202 | } | |
1203 | ||
c4b7a5a9 | 1204 | maybeReadData(); |
1205 | } | |
1206 | ||
1207 | void | |
1208 | HttpStateData::maybeReadData() | |
1209 | { | |
2afaba07 | 1210 | int read_sz = readBuf->spaceSize(); |
1211 | #if ICAP_CLIENT | |
1212 | ||
1213 | if (icap) { | |
1214 | /* | |
1215 | * Our ICAP message pipes have a finite size limit. We | |
1216 | * should not read more data from the network than will fit | |
1217 | * into the pipe buffer. If totally full, don't register | |
1218 | * the read handler at all. The ICAP side will call our | |
1219 | * icapSpaceAvailable() method when it has free space again. | |
1220 | */ | |
1221 | int icap_space = icap->potentialSpaceSize(); | |
1222 | ||
1223 | debugs(11,9, "HttpStateData may read up to min(" << icap_space << | |
1224 | ", " << read_sz << ") bytes"); | |
1225 | ||
1226 | if (icap_space < read_sz) | |
1227 | read_sz = icap_space; | |
1228 | } | |
1229 | ||
1230 | #endif | |
1231 | ||
1232 | debugs(11,9, "HttpStateData may read up to " << read_sz << " bytes"); | |
1233 | ||
1234 | /* | |
1235 | * why <2? Because delayAwareRead() won't actually read if | |
1236 | * you ask it to read 1 byte. The delayed read request | |
1237 | * just gets re-queued until the client side drains, then | |
1238 | * the I/O thread hangs. Better to not register any read | |
1239 | * handler until we get a notification from someone that | |
1240 | * its okay to read again. | |
1241 | */ | |
1242 | if (read_sz < 2) | |
1243 | return; | |
1244 | ||
f61f0107 | 1245 | if (flags.do_next_read) { |
1246 | flags.do_next_read = 0; | |
e5ee81f0 | 1247 | entry->delayAwareRead(fd, readBuf->space(), read_sz, ReadReplyWrapper, this); |
528b2c61 | 1248 | } |
090089c4 | 1249 | } |
1250 | ||
2afaba07 | 1251 | /* |
1252 | * This will be called when request write is complete. | |
1253 | */ | |
d576a6a6 | 1254 | void |
2b663917 | 1255 | HttpStateData::SendComplete(int fd, char *bufnotused, size_t size, comm_err_t errflag, int xerrno, void *data) |
090089c4 | 1256 | { |
e6ccf245 | 1257 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
a3d5953d | 1258 | debug(11, 5) ("httpSendComplete: FD %d: size %d: errflag %d.\n", |
62e76326 | 1259 | fd, (int) size, errflag); |
bc87dc25 | 1260 | #if URL_CHECKSUM_DEBUG |
62e76326 | 1261 | |
528b2c61 | 1262 | entry->mem_obj->checkUrlChecksum(); |
bc87dc25 | 1263 | #endif |
62e76326 | 1264 | |
ee1679df | 1265 | if (size > 0) { |
62e76326 | 1266 | fd_bytes(fd, size, FD_WRITE); |
1267 | kb_incr(&statCounter.server.all.kbytes_out, size); | |
1268 | kb_incr(&statCounter.server.http.kbytes_out, size); | |
ee1679df | 1269 | } |
62e76326 | 1270 | |
ea3a2a69 | 1271 | if (errflag == COMM_ERR_CLOSING) |
62e76326 | 1272 | return; |
1273 | ||
090089c4 | 1274 | if (errflag) { |
6cae5db1 | 1275 | ErrorState *err; |
2cc81f1f | 1276 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY, httpState->fwd->request); |
2b663917 | 1277 | err->xerrno = xerrno; |
b6b6f466 | 1278 | httpState->fwd->fail(err); |
62e76326 | 1279 | comm_close(fd); |
1280 | return; | |
090089c4 | 1281 | } |
72b63f06 | 1282 | |
2afaba07 | 1283 | /* |
1284 | * Set the read timeout here because it hasn't been set yet. | |
1285 | * We only set the read timeout after the request has been | |
1286 | * fully written to the server-side. If we start the timeout | |
1287 | * after connection establishment, then we are likely to hit | |
1288 | * the timeout for POST/PUT requests that have very large | |
1289 | * request bodies. | |
1290 | */ | |
1291 | commSetTimeout(fd, Config.Timeout.read, httpTimeout, httpState); | |
1292 | ||
72b63f06 | 1293 | httpState->flags.request_sent = 1; |
090089c4 | 1294 | } |
1295 | ||
2afaba07 | 1296 | /* |
1297 | * Calling this function marks the end of the HTTP transaction. | |
1298 | * i.e., done talking to the HTTP server. With ICAP, however, that | |
1299 | * does not mean that we're done with HttpStateData and the StoreEntry. | |
1300 | * We'll be expecting adapted data to come back from the ICAP | |
1301 | * routines. | |
1302 | */ | |
1303 | void | |
1304 | HttpStateData::transactionComplete() | |
1305 | { | |
2bb867b5 | 1306 | debugs(11,5,HERE << "transactionComplete FD " << fd << " this " << this); |
1307 | ||
2afaba07 | 1308 | if (fd >= 0) { |
b6b6f466 | 1309 | fwd->unregister(fd); |
2afaba07 | 1310 | comm_remove_close_handler(fd, httpStateFree, this); |
1311 | comm_close(fd); | |
1312 | fd = -1; | |
1313 | } | |
1314 | ||
1315 | #if ICAP_CLIENT | |
1316 | if (icap) { | |
1317 | icap->doneSending(); | |
30398be3 | 1318 | return; |
1319 | } | |
2afaba07 | 1320 | |
1321 | #endif | |
1322 | ||
b6b6f466 | 1323 | fwd->complete(); |
2afaba07 | 1324 | |
30398be3 | 1325 | httpStateFree(-1, this); |
2afaba07 | 1326 | } |
1327 | ||
99edd1c3 | 1328 | /* |
1329 | * build request headers and append them to a given MemBuf | |
e5ee81f0 | 1330 | * used by buildRequestPrefix() |
818c6c9e | 1331 | * note: initialised the HttpHeader, the caller is responsible for Clean()-ing |
99edd1c3 | 1332 | */ |
e1e72f06 | 1333 | void |
e5ee81f0 | 1334 | HttpStateData::httpBuildRequestHeader(HttpRequest * request, |
1335 | HttpRequest * orig_request, | |
1336 | StoreEntry * entry, | |
1337 | HttpHeader * hdr_out, | |
1338 | http_state_flags flags) | |
6bf8443a | 1339 | { |
99edd1c3 | 1340 | /* building buffer for complex strings */ |
5999b776 | 1341 | #define BBUF_SZ (MAX_URL+32) |
99edd1c3 | 1342 | LOCAL_ARRAY(char, bbuf, BBUF_SZ); |
99edd1c3 | 1343 | const HttpHeader *hdr_in = &orig_request->header; |
1344 | const HttpHeaderEntry *e; | |
6bccf575 | 1345 | String strFwd; |
99edd1c3 | 1346 | HttpHeaderPos pos = HttpHeaderInitPos; |
75faaa7a | 1347 | assert (hdr_out->owner == hoRequest); |
99edd1c3 | 1348 | /* append our IMS header */ |
62e76326 | 1349 | |
fa3e249f | 1350 | if (request->lastmod > -1) |
a9925b40 | 1351 | hdr_out->putTime(HDR_IF_MODIFIED_SINCE, request->lastmod); |
99edd1c3 | 1352 | |
528b2c61 | 1353 | bool we_do_ranges = decideIfWeDoRanges (orig_request); |
1354 | ||
a9925b40 | 1355 | String strConnection (hdr_in->getList(HDR_CONNECTION)); |
62e76326 | 1356 | |
a9925b40 | 1357 | while ((e = hdr_in->getEntry(&pos))) |
62e76326 | 1358 | copyOneHeaderFromClientsideRequestToUpstreamRequest(e, strConnection, request, orig_request, hdr_out, we_do_ranges, flags); |
528b2c61 | 1359 | |
43ae1d95 | 1360 | /* Abstraction break: We should interpret multipart/byterange responses |
528b2c61 | 1361 | * into offset-length data, and this works around our inability to do so. |
1362 | */ | |
62e76326 | 1363 | if (!we_do_ranges && orig_request->multipartRangeRequest()) { |
1364 | /* don't cache the result */ | |
1365 | orig_request->flags.cachable = 0; | |
1366 | /* pretend it's not a range request */ | |
00d77d6b | 1367 | delete orig_request->range; |
62e76326 | 1368 | orig_request->range = NULL; |
1369 | orig_request->flags.range = 0; | |
1370 | } | |
528b2c61 | 1371 | |
99edd1c3 | 1372 | /* append Via */ |
736cb6aa | 1373 | if (Config.onoff.via) { |
43ae1d95 | 1374 | String strVia; |
a9925b40 | 1375 | strVia = hdr_in->getList(HDR_VIA); |
62e76326 | 1376 | snprintf(bbuf, BBUF_SZ, "%d.%d %s", |
1377 | orig_request->http_ver.major, | |
1378 | orig_request->http_ver.minor, ThisCache); | |
1379 | strListAdd(&strVia, bbuf, ','); | |
a9925b40 | 1380 | hdr_out->putStr(HDR_VIA, strVia.buf()); |
62e76326 | 1381 | strVia.clean(); |
736cb6aa | 1382 | } |
62e76326 | 1383 | |
43ae1d95 | 1384 | #if ESI |
1385 | { | |
1386 | /* Append Surrogate-Capabilities */ | |
a9925b40 | 1387 | String strSurrogate (hdr_in->getList(HDR_SURROGATE_CAPABILITY)); |
ec43ae0e | 1388 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0 ESI/1.0\"", |
43ae1d95 | 1389 | Config.Accel.surrogate_id); |
1390 | strListAdd(&strSurrogate, bbuf, ','); | |
a9925b40 | 1391 | hdr_out->putStr(HDR_SURROGATE_CAPABILITY, strSurrogate.buf()); |
43ae1d95 | 1392 | } |
1393 | #endif | |
1394 | ||
99edd1c3 | 1395 | /* append X-Forwarded-For */ |
a9925b40 | 1396 | strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); |
62e76326 | 1397 | |
6056ae68 | 1398 | if (opt_forwarded_for && orig_request->client_addr.s_addr != no_addr.s_addr) |
62e76326 | 1399 | strListAdd(&strFwd, inet_ntoa(orig_request->client_addr), ','); |
6056ae68 | 1400 | else |
62e76326 | 1401 | strListAdd(&strFwd, "unknown", ','); |
1402 | ||
a9925b40 | 1403 | hdr_out->putStr(HDR_X_FORWARDED_FOR, strFwd.buf()); |
62e76326 | 1404 | |
528b2c61 | 1405 | strFwd.clean(); |
6bccf575 | 1406 | |
99edd1c3 | 1407 | /* append Host if not there already */ |
a9925b40 | 1408 | if (!hdr_out->has(HDR_HOST)) { |
62e76326 | 1409 | if (orig_request->peer_domain) { |
a9925b40 | 1410 | hdr_out->putStr(HDR_HOST, orig_request->peer_domain); |
62e76326 | 1411 | } else if (orig_request->port == urlDefaultPort(orig_request->protocol)) { |
1412 | /* use port# only if not default */ | |
a9925b40 | 1413 | hdr_out->putStr(HDR_HOST, orig_request->host); |
62e76326 | 1414 | } else { |
1415 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
1416 | orig_request->host, (int) orig_request->port); | |
1417 | } | |
6bf8443a | 1418 | } |
62e76326 | 1419 | |
c68e9c6b | 1420 | /* append Authorization if known in URL, not in header and going direct */ |
a9925b40 | 1421 | if (!hdr_out->has(HDR_AUTHORIZATION)) { |
62e76326 | 1422 | if (!request->flags.proxying && *request->login) { |
1423 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1424 | base64_encode(request->login)); | |
1425 | } | |
c68e9c6b | 1426 | } |
62e76326 | 1427 | |
c68e9c6b | 1428 | /* append Proxy-Authorization if configured for peer, and proxying */ |
c3b33cb7 | 1429 | if (request->flags.proxying && orig_request->peer_login && |
a9925b40 | 1430 | !hdr_out->has(HDR_PROXY_AUTHORIZATION)) { |
62e76326 | 1431 | if (*orig_request->peer_login == '*') { |
1432 | /* Special mode, to pass the username to the upstream cache */ | |
1433 | char loginbuf[256]; | |
1434 | const char *username = "-"; | |
1435 | ||
1436 | if (orig_request->auth_user_request) | |
1437 | username = orig_request->auth_user_request->username(); | |
abb929f0 | 1438 | else if (orig_request->extacl_user.size()) |
1439 | username = orig_request->extacl_user.buf(); | |
62e76326 | 1440 | |
1441 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1442 | ||
1443 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1444 | base64_encode(loginbuf)); | |
1445 | } else if (strcmp(orig_request->peer_login, "PASS") == 0) { | |
abb929f0 | 1446 | if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1447 | char loginbuf[256]; | |
1448 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); | |
1449 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1450 | base64_encode(loginbuf)); | |
1451 | } | |
62e76326 | 1452 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { |
1453 | /* Nothing to do */ | |
1454 | } else { | |
1455 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1456 | base64_encode(orig_request->peer_login)); | |
1457 | } | |
c68e9c6b | 1458 | } |
62e76326 | 1459 | |
be753325 | 1460 | /* append WWW-Authorization if configured for peer */ |
1461 | if (flags.originpeer && orig_request->peer_login && | |
a9925b40 | 1462 | !hdr_out->has(HDR_AUTHORIZATION)) { |
62e76326 | 1463 | if (strcmp(orig_request->peer_login, "PASS") == 0) { |
1464 | /* No credentials to forward.. (should have been done above if available) */ | |
1465 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { | |
1466 | /* Special mode, convert proxy authentication to WWW authentication | |
abb929f0 | 1467 | * (also applies to authentication provided by external acl) |
62e76326 | 1468 | */ |
a9925b40 | 1469 | const char *auth = hdr_in->getStr(HDR_PROXY_AUTHORIZATION); |
62e76326 | 1470 | |
1471 | if (auth && strncasecmp(auth, "basic ", 6) == 0) { | |
a9925b40 | 1472 | hdr_out->putStr(HDR_AUTHORIZATION, auth); |
abb929f0 | 1473 | } else if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1474 | char loginbuf[256]; | |
1475 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); | |
1476 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1477 | base64_encode(loginbuf)); | |
62e76326 | 1478 | } |
1479 | } else if (*orig_request->peer_login == '*') { | |
1480 | /* Special mode, to pass the username to the upstream cache */ | |
1481 | char loginbuf[256]; | |
1482 | const char *username = "-"; | |
1483 | ||
1484 | if (orig_request->auth_user_request) | |
f5691f9c | 1485 | username = orig_request->auth_user_request->username(); |
abb929f0 | 1486 | else if (orig_request->extacl_user.size()) |
1487 | username = orig_request->extacl_user.buf(); | |
62e76326 | 1488 | |
1489 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1490 | ||
1491 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1492 | base64_encode(loginbuf)); | |
1493 | } else { | |
1494 | /* Fixed login string */ | |
1495 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1496 | base64_encode(orig_request->peer_login)); | |
1497 | } | |
be753325 | 1498 | } |
62e76326 | 1499 | |
abb929f0 | 1500 | /* append Cache-Control, add max-age if not there already */ { |
a9925b40 | 1501 | HttpHdrCc *cc = hdr_in->getCc(); |
62e76326 | 1502 | |
1503 | if (!cc) | |
1504 | cc = httpHdrCcCreate(); | |
1505 | ||
1506 | if (!EBIT_TEST(cc->mask, CC_MAX_AGE)) { | |
43ae1d95 | 1507 | const char *url = |
1508 | entry ? storeUrl(entry) : urlCanonical(orig_request); | |
62e76326 | 1509 | httpHdrCcSetMaxAge(cc, getMaxAge(url)); |
1510 | ||
1511 | if (request->urlpath.size()) | |
1512 | assert(strstr(url, request->urlpath.buf())); | |
1513 | } | |
1514 | ||
ce2d6441 | 1515 | /* Set no-cache if determined needed but not found */ |
a9925b40 | 1516 | if (orig_request->flags.nocache && !hdr_in->has(HDR_PRAGMA)) |
ce2d6441 | 1517 | EBIT_SET(cc->mask, CC_NO_CACHE); |
1518 | ||
1519 | /* Enforce sibling relations */ | |
62e76326 | 1520 | if (flags.only_if_cached) |
1521 | EBIT_SET(cc->mask, CC_ONLY_IF_CACHED); | |
1522 | ||
a9925b40 | 1523 | hdr_out->putCc(cc); |
62e76326 | 1524 | |
1525 | httpHdrCcDestroy(cc); | |
6bf8443a | 1526 | } |
62e76326 | 1527 | |
99edd1c3 | 1528 | /* maybe append Connection: keep-alive */ |
b515fc11 | 1529 | if (flags.keepalive) { |
62e76326 | 1530 | if (flags.proxying) { |
a9925b40 | 1531 | hdr_out->putStr(HDR_PROXY_CONNECTION, "keep-alive"); |
62e76326 | 1532 | } else { |
a9925b40 | 1533 | hdr_out->putStr(HDR_CONNECTION, "keep-alive"); |
62e76326 | 1534 | } |
603a02fd | 1535 | } |
62e76326 | 1536 | |
a7ad6e4e | 1537 | /* append Front-End-Https */ |
1538 | if (flags.front_end_https) { | |
62e76326 | 1539 | if (flags.front_end_https == 1 || request->protocol == PROTO_HTTPS) |
a9925b40 | 1540 | hdr_out->putStr(HDR_FRONT_END_HTTPS, "On"); |
a7ad6e4e | 1541 | } |
1542 | ||
6bccf575 | 1543 | /* Now mangle the headers. */ |
4f56514c | 1544 | if (Config2.onoff.mangle_request_headers) |
5967c0bf | 1545 | httpHdrMangleList(hdr_out, request, ROR_REQUEST); |
62e76326 | 1546 | |
528b2c61 | 1547 | strConnection.clean(); |
99edd1c3 | 1548 | } |
1549 | ||
528b2c61 | 1550 | void |
190154cf | 1551 | copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, String strConnection, HttpRequest * request, HttpRequest * orig_request, HttpHeader * hdr_out, int we_do_ranges, http_state_flags flags) |
528b2c61 | 1552 | { |
1553 | debug(11, 5) ("httpBuildRequestHeader: %s: %s\n", | |
62e76326 | 1554 | e->name.buf(), e->value.buf()); |
1555 | ||
528b2c61 | 1556 | if (!httpRequestHdrAllowed(e, &strConnection)) { |
62e76326 | 1557 | debug(11, 2) ("'%s' header denied by anonymize_headers configuration\n",+ e->name.buf()); |
1558 | return; | |
528b2c61 | 1559 | } |
62e76326 | 1560 | |
528b2c61 | 1561 | switch (e->id) { |
62e76326 | 1562 | |
be753325 | 1563 | case HDR_PROXY_AUTHORIZATION: |
62e76326 | 1564 | /* Only pass on proxy authentication to peers for which |
1565 | * authentication forwarding is explicitly enabled | |
1566 | */ | |
1567 | ||
1568 | if (flags.proxying && orig_request->peer_login && | |
abb929f0 | 1569 | (strcmp(orig_request->peer_login, "PASS") == 0 || |
1570 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1571 | hdr_out->addEntry(e->clone()); |
62e76326 | 1572 | } |
1573 | ||
1574 | break; | |
1575 | ||
be753325 | 1576 | case HDR_AUTHORIZATION: |
62e76326 | 1577 | /* Pass on WWW authentication */ |
1578 | ||
1579 | if (!flags.originpeer) { | |
eede25e7 | 1580 | hdr_out->addEntry(e->clone()); |
62e76326 | 1581 | } else { |
1582 | /* In accelerators, only forward authentication if enabled | |
1583 | * (see also below for proxy->server authentication) | |
1584 | */ | |
1585 | ||
abb929f0 | 1586 | if (orig_request->peer_login && |
1587 | (strcmp(orig_request->peer_login, "PASS") == 0 || | |
1588 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1589 | hdr_out->addEntry(e->clone()); |
62e76326 | 1590 | } |
1591 | } | |
1592 | ||
1593 | break; | |
1594 | ||
be753325 | 1595 | case HDR_HOST: |
62e76326 | 1596 | /* |
b883b594 | 1597 | * Normally Squid rewrites the Host: header. |
1598 | * However, there is one case when we don't: If the URL | |
62e76326 | 1599 | * went through our redirector and the admin configured |
1600 | * 'redir_rewrites_host' to be off. | |
1601 | */ | |
1602 | ||
b883b594 | 1603 | if (request->flags.redirected && !Config.onoff.redir_rewrites_host) |
eede25e7 | 1604 | hdr_out->addEntry(e->clone()); |
b883b594 | 1605 | else { |
1606 | /* use port# only if not default */ | |
1607 | ||
1608 | if (orig_request->port == urlDefaultPort(orig_request->protocol)) { | |
a9925b40 | 1609 | hdr_out->putStr(HDR_HOST, orig_request->host); |
b883b594 | 1610 | } else { |
1611 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
1612 | orig_request->host, (int) orig_request->port); | |
1613 | } | |
1614 | } | |
62e76326 | 1615 | |
1616 | break; | |
1617 | ||
be753325 | 1618 | case HDR_IF_MODIFIED_SINCE: |
62e76326 | 1619 | /* append unless we added our own; |
1620 | * note: at most one client's ims header can pass through */ | |
b883b594 | 1621 | |
a9925b40 | 1622 | if (!hdr_out->has(HDR_IF_MODIFIED_SINCE)) |
eede25e7 | 1623 | hdr_out->addEntry(e->clone()); |
62e76326 | 1624 | |
1625 | break; | |
1626 | ||
be753325 | 1627 | case HDR_MAX_FORWARDS: |
62e76326 | 1628 | if (orig_request->method == METHOD_TRACE) { |
eede25e7 | 1629 | const int hops = e->getInt(); |
62e76326 | 1630 | |
1631 | if (hops > 0) | |
a9925b40 | 1632 | hdr_out->putInt(HDR_MAX_FORWARDS, hops - 1); |
62e76326 | 1633 | } |
1634 | ||
1635 | break; | |
1636 | ||
be753325 | 1637 | case HDR_VIA: |
62e76326 | 1638 | /* If Via is disabled then forward any received header as-is */ |
1639 | ||
1640 | if (!Config.onoff.via) | |
eede25e7 | 1641 | hdr_out->addEntry(e->clone()); |
62e76326 | 1642 | |
1643 | break; | |
1644 | ||
be753325 | 1645 | case HDR_RANGE: |
62e76326 | 1646 | |
be753325 | 1647 | case HDR_IF_RANGE: |
62e76326 | 1648 | |
be753325 | 1649 | case HDR_REQUEST_RANGE: |
62e76326 | 1650 | if (!we_do_ranges) |
eede25e7 | 1651 | hdr_out->addEntry(e->clone()); |
62e76326 | 1652 | |
1653 | break; | |
1654 | ||
be753325 | 1655 | case HDR_PROXY_CONNECTION: |
62e76326 | 1656 | |
be753325 | 1657 | case HDR_CONNECTION: |
62e76326 | 1658 | |
be753325 | 1659 | case HDR_X_FORWARDED_FOR: |
62e76326 | 1660 | |
be753325 | 1661 | case HDR_CACHE_CONTROL: |
62e76326 | 1662 | /* append these after the loop if needed */ |
1663 | break; | |
1664 | ||
be753325 | 1665 | case HDR_FRONT_END_HTTPS: |
62e76326 | 1666 | if (!flags.front_end_https) |
eede25e7 | 1667 | hdr_out->addEntry(e->clone()); |
62e76326 | 1668 | |
1669 | break; | |
1670 | ||
be753325 | 1671 | default: |
62e76326 | 1672 | /* pass on all other header fields */ |
eede25e7 | 1673 | hdr_out->addEntry(e->clone()); |
528b2c61 | 1674 | } |
1675 | } | |
1676 | ||
e5ee81f0 | 1677 | bool |
1678 | HttpStateData::decideIfWeDoRanges (HttpRequest * orig_request) | |
528b2c61 | 1679 | { |
e5ee81f0 | 1680 | bool result = true; |
62e76326 | 1681 | /* decide if we want to do Ranges ourselves |
1682 | * and fetch the whole object now) | |
1683 | * We want to handle Ranges ourselves iff | |
1684 | * - we can actually parse client Range specs | |
1685 | * - the specs are expected to be simple enough (e.g. no out-of-order ranges) | |
1686 | * - reply will be cachable | |
1687 | * (If the reply will be uncachable we have to throw it away after | |
1688 | * serving this request, so it is better to forward ranges to | |
1689 | * the server and fetch only the requested content) | |
1690 | */ | |
1691 | ||
1692 | if (NULL == orig_request->range || !orig_request->flags.cachable | |
1693 | || orig_request->range->offsetLimitExceeded()) | |
e5ee81f0 | 1694 | result = false; |
62e76326 | 1695 | |
1696 | debug(11, 8) ("decideIfWeDoRanges: range specs: %p, cachable: %d; we_do_ranges: %d\n", | |
1697 | orig_request->range, orig_request->flags.cachable, result); | |
1698 | ||
1699 | return result; | |
528b2c61 | 1700 | } |
1701 | ||
62e76326 | 1702 | /* build request prefix and append it to a given MemBuf; |
99edd1c3 | 1703 | * return the length of the prefix */ |
9bc73deb | 1704 | mb_size_t |
e5ee81f0 | 1705 | HttpStateData::buildRequestPrefix(HttpRequest * request, |
1706 | HttpRequest * orig_request, | |
1707 | StoreEntry * entry, | |
1708 | MemBuf * mb, | |
1709 | http_state_flags flags) | |
99edd1c3 | 1710 | { |
1711 | const int offset = mb->size; | |
450e0c10 | 1712 | HttpVersion httpver(1, 0); |
2fe7eff9 | 1713 | mb->Printf("%s %s HTTP/%d.%d\r\n", |
1714 | RequestMethodStr[request->method], | |
1715 | request->urlpath.size() ? request->urlpath.buf() : "/", | |
1716 | httpver.major,httpver.minor); | |
99edd1c3 | 1717 | /* build and pack headers */ |
1718 | { | |
75faaa7a | 1719 | HttpHeader hdr(hoRequest); |
62e76326 | 1720 | Packer p; |
1721 | httpBuildRequestHeader(request, orig_request, entry, &hdr, flags); | |
1722 | packerToMemInit(&p, mb); | |
a9925b40 | 1723 | hdr.packInto(&p); |
519e0948 | 1724 | hdr.clean(); |
62e76326 | 1725 | packerClean(&p); |
9d9d144b | 1726 | } |
99edd1c3 | 1727 | /* append header terminator */ |
2fe7eff9 | 1728 | mb->append(crlf, 2); |
99edd1c3 | 1729 | return mb->size - offset; |
6bf8443a | 1730 | } |
62e76326 | 1731 | |
090089c4 | 1732 | /* This will be called when connect completes. Write request. */ |
2bb867b5 | 1733 | void |
1734 | HttpStateData::sendRequest() | |
090089c4 | 1735 | { |
99edd1c3 | 1736 | MemBuf mb; |
2b663917 | 1737 | IOCB *sendHeaderDone; |
090089c4 | 1738 | |
2bb867b5 | 1739 | debug(11, 5) ("httpSendRequest: FD %d: this %p.\n", fd, this); |
090089c4 | 1740 | |
2bb867b5 | 1741 | commSetTimeout(fd, Config.Timeout.lifetime, httpTimeout, this); |
1742 | flags.do_next_read = 1; | |
1743 | maybeReadData(); | |
21b92762 | 1744 | |
3b299123 | 1745 | debugs(32,3,HERE<< "request " << request << " body_reader = " << orig_request->body_reader.getRaw()); |
1746 | ||
1747 | if (orig_request->body_reader != NULL) | |
2bb867b5 | 1748 | sendHeaderDone = HttpStateData::SendRequestEntityWrapper; |
7db8b16d | 1749 | else |
62e76326 | 1750 | sendHeaderDone = HttpStateData::SendComplete; |
54220df8 | 1751 | |
2bb867b5 | 1752 | if (_peer != NULL) { |
1753 | if (_peer->options.originserver) { | |
1754 | flags.proxying = 0; | |
1755 | flags.originpeer = 1; | |
62e76326 | 1756 | } else { |
2bb867b5 | 1757 | flags.proxying = 1; |
1758 | flags.originpeer = 0; | |
62e76326 | 1759 | } |
be753325 | 1760 | } else { |
2bb867b5 | 1761 | flags.proxying = 0; |
1762 | flags.originpeer = 0; | |
be753325 | 1763 | } |
62e76326 | 1764 | |
efb9218c | 1765 | /* |
99edd1c3 | 1766 | * Is keep-alive okay for all request methods? |
efb9218c | 1767 | */ |
efd900cb | 1768 | if (!Config.onoff.server_pconns) |
2bb867b5 | 1769 | flags.keepalive = 0; |
1770 | else if (_peer == NULL) | |
1771 | flags.keepalive = 1; | |
1772 | else if (_peer->stats.n_keepalives_sent < 10) | |
1773 | flags.keepalive = 1; | |
1774 | else if ((double) _peer->stats.n_keepalives_recv / | |
1775 | (double) _peer->stats.n_keepalives_sent > 0.50) | |
1776 | flags.keepalive = 1; | |
1777 | ||
1778 | if (_peer) { | |
1779 | if (neighborType(_peer, request) == PEER_SIBLING && | |
1780 | !_peer->options.allow_miss) | |
1781 | flags.only_if_cached = 1; | |
1782 | ||
1783 | flags.front_end_https = _peer->front_end_https; | |
a7ad6e4e | 1784 | } |
62e76326 | 1785 | |
2fe7eff9 | 1786 | mb.init(); |
e5ee81f0 | 1787 | buildRequestPrefix(request, orig_request, entry, &mb, flags); |
21b92762 | 1788 | debug(11, 6) ("httpSendRequest: FD %d:\n%s\n", fd, mb.buf); |
2b663917 | 1789 | comm_write_mbuf(fd, &mb, sendHeaderDone, this); |
090089c4 | 1790 | } |
b6a2f15e | 1791 | |
910169e5 | 1792 | void |
b6b6f466 | 1793 | httpStart(FwdState *fwd) |
603a02fd | 1794 | { |
910169e5 | 1795 | debug(11, 3) ("httpStart: \"%s %s\"\n", |
a3d50c30 | 1796 | RequestMethodStr[fwd->request->method], |
62e76326 | 1797 | storeUrl(fwd->entry)); |
a3d50c30 | 1798 | HttpStateData *httpState = new HttpStateData(fwd); |
62e76326 | 1799 | |
83704487 | 1800 | statCounter.server.all.requests++; |
62e76326 | 1801 | |
83704487 | 1802 | statCounter.server.http.requests++; |
62e76326 | 1803 | |
2bb867b5 | 1804 | httpState->sendRequest(); |
62e76326 | 1805 | |
b6a2f15e | 1806 | /* |
1807 | * We used to set the read timeout here, but not any more. | |
1808 | * Now its set in httpSendComplete() after the full request, | |
1809 | * including request body, has been written to the server. | |
1810 | */ | |
090089c4 | 1811 | } |
1812 | ||
2bb867b5 | 1813 | void |
ea0cf66e | 1814 | HttpStateData::sendRequestEntityDone() |
2bb867b5 | 1815 | { |
4fb35c3c | 1816 | ACLChecklist ch; |
43ae1d95 | 1817 | debug(11, 5) ("httpSendRequestEntityDone: FD %d\n", fd); |
6dd9f4bd | 1818 | ch.request = HTTPMSGLOCK(request); |
506768d9 | 1819 | |
1820 | if (Config.accessList.brokenPosts) | |
1821 | ch.accessList = cbdataReference(Config.accessList.brokenPosts); | |
62e76326 | 1822 | |
108d65b2 | 1823 | /* cbdataReferenceDone() happens in either fastCheck() or ~ACLCheckList */ |
1824 | ||
94439e4e | 1825 | if (!Config.accessList.brokenPosts) { |
62e76326 | 1826 | debug(11, 5) ("httpSendRequestEntityDone: No brokenPosts list\n"); |
2b663917 | 1827 | HttpStateData::SendComplete(fd, NULL, 0, COMM_OK, 0, this); |
b448c119 | 1828 | } else if (!ch.fastCheck()) { |
62e76326 | 1829 | debug(11, 5) ("httpSendRequestEntityDone: didn't match brokenPosts\n"); |
2b663917 | 1830 | HttpStateData::SendComplete(fd, NULL, 0, COMM_OK, 0, this); |
94439e4e | 1831 | } else { |
62e76326 | 1832 | debug(11, 2) ("httpSendRequestEntityDone: matched brokenPosts\n"); |
2b663917 | 1833 | comm_write(fd, "\r\n", 2, HttpStateData::SendComplete, this, NULL); |
54220df8 | 1834 | } |
94439e4e | 1835 | } |
1836 | ||
3b299123 | 1837 | /* |
1838 | * RequestBodyHandlerWrapper | |
1839 | * | |
1840 | * BodyReader calls this when it has some body data for us. | |
1841 | * It is of type CBCB. | |
1842 | */ | |
2bb867b5 | 1843 | void |
3b299123 | 1844 | HttpStateData::RequestBodyHandlerWrapper(MemBuf &mb, void *data) |
94439e4e | 1845 | { |
9ed57c61 | 1846 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
3b299123 | 1847 | httpState->requestBodyHandler(mb); |
2bb867b5 | 1848 | } |
1849 | ||
1850 | void | |
3b299123 | 1851 | HttpStateData::requestBodyHandler(MemBuf &mb) |
2bb867b5 | 1852 | { |
2bb867b5 | 1853 | if (eof || fd < 0) { |
1854 | debugs(11, 1, HERE << "Transaction aborted while reading HTTP body"); | |
2bb867b5 | 1855 | return; |
1856 | } | |
62e76326 | 1857 | |
3b299123 | 1858 | if (mb.contentSize() > 0) { |
2bb867b5 | 1859 | if (flags.headers_parsed && !flags.abuse_detected) { |
1860 | flags.abuse_detected = 1; | |
21b92762 | 1861 | debug(11, 1) ("httpSendRequestEntryDone: Likely proxy abuse detected '%s' -> '%s'\n", |
2bb867b5 | 1862 | inet_ntoa(orig_request->client_addr), |
1863 | storeUrl(entry)); | |
21b92762 | 1864 | |
2bb867b5 | 1865 | if (getReply()->sline.status == HTTP_INVALID_HEADER) { |
2bb867b5 | 1866 | comm_close(fd); |
21b92762 | 1867 | return; |
1868 | } | |
1869 | } | |
1870 | ||
3b299123 | 1871 | /* |
1872 | * mb's content will be consumed in the SendRequestEntityWrapper | |
1873 | * callback after comm_write is done. | |
1874 | */ | |
1875 | flags.consume_body_data = 1; | |
1876 | ||
2b663917 | 1877 | comm_write(fd, mb.content(), mb.contentSize(), SendRequestEntityWrapper, this, NULL); |
3b299123 | 1878 | } else if (orig_request->body_reader == NULL) { |
1879 | /* Failed to get whole body, probably aborted */ | |
2b663917 | 1880 | SendComplete(fd, NULL, 0, COMM_ERR_CLOSING, 0, this); |
3b299123 | 1881 | } else if (orig_request->body_reader->remaining() == 0) { |
62e76326 | 1882 | /* End of body */ |
ea0cf66e | 1883 | sendRequestEntityDone(); |
94439e4e | 1884 | } else { |
62e76326 | 1885 | /* Failed to get whole body, probably aborted */ |
2b663917 | 1886 | SendComplete(fd, NULL, 0, COMM_ERR_CLOSING, 0, this); |
b6a2f15e | 1887 | } |
376bb137 | 1888 | } |
1889 | ||
2bb867b5 | 1890 | void |
2b663917 | 1891 | HttpStateData::SendRequestEntityWrapper(int fd, char *bufnotused, size_t size, comm_err_t errflag, int xerrno, void *data) |
376bb137 | 1892 | { |
e6ccf245 | 1893 | HttpStateData *httpState = static_cast<HttpStateData *>(data); |
2bb867b5 | 1894 | httpState->sendRequestEntity(fd, size, errflag); |
1895 | } | |
1896 | ||
1897 | void | |
1898 | HttpStateData::sendRequestEntity(int fd, size_t size, comm_err_t errflag) | |
1899 | { | |
c3d63b2a | 1900 | debug(11, 5) ("httpSendRequestEntity: FD %d: size %d: errflag %d.\n", |
62e76326 | 1901 | fd, (int) size, errflag); |
3b299123 | 1902 | debugs(32,3,HERE << "httpSendRequestEntity called"); |
da39112a | 1903 | |
1904 | /* | |
1905 | * This used to be an assertion for body_reader != NULL. | |
1906 | * Currently there are cases where body_reader may become NULL | |
1907 | * before reaching this point in the code. This can happen | |
1908 | * because body_reader is attached to HttpRequest and other | |
1909 | * modules (client_side, ICAP) have access to HttpRequest->body | |
1910 | * reader. An aborted transaction may cause body_reader to | |
1911 | * become NULL between the time sendRequestEntity was registered | |
1912 | * and actually called. For now we'll abort the whole transaction, | |
1913 | * but this should be fixed so that the client/icap/server sides | |
1914 | * are cleaned up independently. | |
1915 | */ | |
1916 | ||
1917 | if (orig_request->body_reader == NULL) { | |
1918 | debugs(32,1,HERE << "sendRequestEntity body_reader became NULL, aborting transaction"); | |
1919 | comm_close(fd); | |
1920 | return; | |
1921 | } | |
62e76326 | 1922 | |
376bb137 | 1923 | if (size > 0) { |
62e76326 | 1924 | fd_bytes(fd, size, FD_WRITE); |
1925 | kb_incr(&statCounter.server.all.kbytes_out, size); | |
1926 | kb_incr(&statCounter.server.http.kbytes_out, size); | |
3b299123 | 1927 | |
1928 | if (flags.consume_body_data) { | |
1929 | orig_request->body_reader->consume(size); | |
1930 | orig_request->body_reader->bytes_read += size; | |
1931 | debugs(32,3," HTTP server body bytes_read=" << orig_request->body_reader->bytes_read); | |
1932 | } | |
376bb137 | 1933 | } |
62e76326 | 1934 | |
376bb137 | 1935 | if (errflag == COMM_ERR_CLOSING) |
62e76326 | 1936 | return; |
1937 | ||
376bb137 | 1938 | if (errflag) { |
6cae5db1 | 1939 | ErrorState *err; |
2cc81f1f | 1940 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY, fwd->request); |
62e76326 | 1941 | err->xerrno = errno; |
2bb867b5 | 1942 | fwd->fail(err); |
62e76326 | 1943 | comm_close(fd); |
1944 | return; | |
376bb137 | 1945 | } |
62e76326 | 1946 | |
94439e4e | 1947 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1948 | comm_close(fd); |
1949 | return; | |
376bb137 | 1950 | } |
62e76326 | 1951 | |
3b299123 | 1952 | size_t r = orig_request->body_reader->remaining(); |
1953 | debugs(32,3,HERE << "body remaining = " << r); | |
1954 | ||
1955 | if (r) { | |
1956 | debugs(32,3,HERE << "reading more body data"); | |
1957 | orig_request->body_reader->read(RequestBodyHandlerWrapper, this); | |
1958 | } else { | |
1959 | debugs(32,3,HERE << "done reading body data"); | |
1960 | sendRequestEntityDone(); | |
1961 | } | |
54220df8 | 1962 | } |
ccf44862 | 1963 | |
1964 | void | |
450e0c10 | 1965 | httpBuildVersion(HttpVersion * version, unsigned int major, unsigned int minor) |
110eb4e5 | 1966 | { |
1967 | version->major = major; | |
1968 | version->minor = minor; | |
ccf44862 | 1969 | } |
2afaba07 | 1970 | |
1971 | #if ICAP_CLIENT | |
1972 | ||
1973 | static void | |
1974 | icapAclCheckDoneWrapper(ICAPServiceRep::Pointer service, void *data) | |
1975 | { | |
1976 | HttpStateData *http = (HttpStateData *)data; | |
1977 | http->icapAclCheckDone(service); | |
1978 | } | |
1979 | ||
1980 | void | |
1981 | HttpStateData::icapAclCheckDone(ICAPServiceRep::Pointer service) | |
1982 | { | |
1983 | icapAccessCheckPending = false; | |
1984 | ||
1985 | if (service == NULL) { | |
1986 | // handle case where no service is selected; | |
db237875 | 1987 | entry->replaceHttpReply(reply); |
2afaba07 | 1988 | |
2afaba07 | 1989 | haveParsedReplyHeaders(); |
1990 | processReplyBody(); | |
1991 | ||
1992 | if (eof == 1) | |
1993 | transactionComplete(); | |
1994 | ||
1995 | return; | |
1996 | } | |
1997 | ||
1998 | if (doIcap(service) < 0) { | |
1999 | /* | |
2000 | * XXX Maybe instead of an error page we should | |
2001 | * handle the reply normally (without ICAP). | |
2002 | */ | |
2cc81f1f | 2003 | ErrorState *err = errorCon(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR, orig_request); |
2afaba07 | 2004 | err->xerrno = errno; |
2afaba07 | 2005 | errorAppendEntry(entry, err); |
2006 | comm_close(fd); | |
2007 | return; | |
2008 | } | |
2009 | ||
132c60e0 | 2010 | icap->startRespMod(this, orig_request, reply); |
2afaba07 | 2011 | processReplyBody(); |
2012 | } | |
2013 | ||
2afaba07 | 2014 | /* |
2015 | * Called by ICAPClientRespmodPrecache when it has space available for us. | |
2016 | */ | |
2017 | void | |
2018 | HttpStateData::icapSpaceAvailable() | |
2019 | { | |
2020 | debug(11,5)("HttpStateData::icapSpaceAvailable() called\n"); | |
2021 | maybeReadData(); | |
2022 | } | |
2023 | ||
2024 | void | |
2025 | HttpStateData::takeAdaptedHeaders(HttpReply *rep) | |
2026 | { | |
2027 | debug(11,5)("HttpStateData::takeAdaptedHeaders() called\n"); | |
2028 | ||
2029 | if (!entry->isAccepting()) { | |
2030 | debug(11,5)("\toops, entry is not Accepting!\n"); | |
2031 | icap->ownerAbort(); | |
2032 | return; | |
2033 | } | |
2034 | ||
b559db5d | 2035 | assert (rep); |
db237875 | 2036 | entry->replaceHttpReply(rep); |
6dd9f4bd | 2037 | HTTPMSGUNLOCK(reply); |
4a56ee8d | 2038 | |
6dd9f4bd | 2039 | reply = HTTPMSGLOCK(rep); |
2afaba07 | 2040 | |
2041 | haveParsedReplyHeaders(); | |
2042 | ||
2043 | debug(11,5)("HttpStateData::takeAdaptedHeaders() finished\n"); | |
2044 | } | |
2045 | ||
2046 | void | |
2047 | HttpStateData::takeAdaptedBody(MemBuf *buf) | |
2048 | { | |
2049 | debug(11,5)("HttpStateData::takeAdaptedBody() called\n"); | |
1dd6edf2 | 2050 | debug(11,5)("\t%d bytes\n", (int) buf->contentSize()); |
2afaba07 | 2051 | debug(11,5)("\t%d is current offset\n", (int)currentOffset); |
2052 | ||
2053 | if (!entry->isAccepting()) { | |
2054 | debug(11,5)("\toops, entry is not Accepting!\n"); | |
2055 | icap->ownerAbort(); | |
2056 | return; | |
2057 | } | |
2058 | ||
2059 | entry->write(StoreIOBuffer(buf, currentOffset)); // write everything | |
2060 | currentOffset += buf->contentSize(); | |
2061 | buf->consume(buf->contentSize()); // consume everything written | |
2062 | } | |
2063 | ||
2064 | void | |
2065 | HttpStateData::doneAdapting() | |
2066 | { | |
2067 | debug(11,5)("HttpStateData::doneAdapting() called\n"); | |
2068 | ||
2069 | if (!entry->isAccepting()) { | |
2070 | debug(11,5)("\toops, entry is not Accepting!\n"); | |
2071 | icap->ownerAbort(); | |
2072 | } else { | |
b6b6f466 | 2073 | fwd->complete(); |
2afaba07 | 2074 | } |
2075 | ||
6965ab28 | 2076 | /* |
2077 | * ICAP is done, so we don't need this any more. | |
2078 | */ | |
2079 | delete icap; | |
2080 | ||
2081 | cbdataReferenceDone(icap); | |
2082 | ||
b559db5d | 2083 | if (fd >= 0) |
2084 | comm_close(fd); | |
2085 | else | |
2086 | httpStateFree(fd, this); | |
2afaba07 | 2087 | } |
2088 | ||
2089 | void | |
2090 | HttpStateData::abortAdapting() | |
2091 | { | |
2092 | debug(11,5)("HttpStateData::abortAdapting() called\n"); | |
2093 | ||
b559db5d | 2094 | /* |
2095 | * ICAP has given up, we're done with it too | |
2096 | */ | |
2097 | delete icap; | |
2098 | cbdataReferenceDone(icap); | |
2099 | ||
2afaba07 | 2100 | if (entry->isEmpty()) { |
2101 | ErrorState *err; | |
2cc81f1f | 2102 | err = errorCon(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR, request); |
2afaba07 | 2103 | err->xerrno = errno; |
b6b6f466 | 2104 | fwd->fail( err); |
2105 | fwd->dontRetry(true); | |
2afaba07 | 2106 | flags.do_next_read = 0; |
2107 | } | |
2108 | ||
6c2d6c93 | 2109 | if (fd >= 0) { |
2110 | comm_close(fd); | |
2111 | } else { | |
2112 | httpStateFree(-1, this); // deletes this | |
2113 | } | |
2afaba07 | 2114 | } |
2115 | ||
2116 | #endif |