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edce4d98 | 1 | |
2 | /* | |
a546b04b | 3 | * $Id: client_side_request.cc,v 1.54 2005/12/06 00:01:23 wessels Exp $ |
69660be0 | 4 | * |
ae45c4de | 5 | * DEBUG: section 85 Client-side Request Routines |
6 | * AUTHOR: Robert Collins (Originally Duane Wessels in client_side.c) | |
69660be0 | 7 | * |
edce4d98 | 8 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
9 | * ---------------------------------------------------------- | |
69660be0 | 10 | * |
11 | * Squid is the result of efforts by numerous individuals from the Internet | |
12 | * community; see the CONTRIBUTORS file for full details. Many organizations | |
13 | * have provided support for Squid's development; see the SPONSORS file for | |
14 | * full details. Squid is Copyrighted (C) 2001 by the Regents of the | |
15 | * University of California; see the COPYRIGHT file for full details. Squid | |
16 | * incorporates software developed and/or copyrighted by other sources; see the | |
17 | * CREDITS file for full details. | |
18 | * | |
19 | * This program is free software; you can redistribute it and/or modify it under | |
20 | * the terms of the GNU General Public License as published by the Free | |
21 | * Software Foundation; either version 2 of the License, or (at your option) | |
22 | * any later version. | |
23 | * | |
24 | * This program is distributed in the hope that it will be useful, but WITHOUT ANY | |
25 | * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
26 | * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more | |
27 | * details. | |
28 | * | |
29 | * You should have received a copy of the GNU General Public License along with | |
30 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple | |
31 | * Place, Suite 330, Boston, MA 02111, USA. | |
32 | * | |
edce4d98 | 33 | */ |
34 | ||
35 | ||
69660be0 | 36 | /* |
37 | * General logic of request processing: | |
38 | * | |
39 | * We run a series of tests to determine if access will be permitted, and to do | |
40 | * any redirection. Then we call into the result clientStream to retrieve data. | |
41 | * From that point on it's up to reply management. | |
edce4d98 | 42 | */ |
43 | ||
44 | #include "squid.h" | |
c8be6d7b | 45 | #include "clientStream.h" |
46 | #include "client_side_request.h" | |
f5691f9c | 47 | #include "AuthUserRequest.h" |
528b2c61 | 48 | #include "HttpRequest.h" |
8000a965 | 49 | #include "ACLChecklist.h" |
50 | #include "ACL.h" | |
a46d2c0e | 51 | #include "client_side.h" |
0655fa4d | 52 | #include "client_side_reply.h" |
53 | #include "Store.h" | |
54 | #include "HttpReply.h" | |
86a2f789 | 55 | #include "MemObject.h" |
de31d06f | 56 | #include "ClientRequestContext.h" |
57 | ||
58 | #if ICAP_CLIENT | |
59 | #include "ICAP/ICAPClientReqmodPrecache.h" | |
60 | #include "ICAP/ICAPElements.h" | |
61 | #include "ICAP/ICAPConfig.h" | |
62 | static void icapAclCheckDoneWrapper(ICAPServiceRep::Pointer service, void *data); | |
ab7ac359 | 63 | extern ICAPConfig TheICAPConfig; |
de31d06f | 64 | #endif |
edce4d98 | 65 | |
66 | #if LINGERING_CLOSE | |
67 | #define comm_close comm_lingering_close | |
68 | #endif | |
69 | ||
70 | static const char *const crlf = "\r\n"; | |
71 | ||
8e2745f4 | 72 | CBDATA_CLASS_INIT(ClientRequestContext); |
73 | ||
74 | void * | |
75 | ClientRequestContext::operator new (size_t size) | |
76 | { | |
77 | assert (size == sizeof(ClientRequestContext)); | |
78 | CBDATA_INIT_TYPE(ClientRequestContext); | |
79 | ClientRequestContext *result = cbdataAlloc(ClientRequestContext); | |
aa625860 | 80 | return result; |
8e2745f4 | 81 | } |
62e76326 | 82 | |
8e2745f4 | 83 | void |
84 | ClientRequestContext::operator delete (void *address) | |
85 | { | |
86 | ClientRequestContext *t = static_cast<ClientRequestContext *>(address); | |
aa625860 | 87 | cbdataFree(t); |
8e2745f4 | 88 | } |
89 | ||
edce4d98 | 90 | /* Local functions */ |
edce4d98 | 91 | /* other */ |
de31d06f | 92 | static void clientAccessCheckDoneWrapper(int, void *); |
59a1efb2 | 93 | static int clientCachable(ClientHttpRequest * http); |
94 | static int clientHierarchical(ClientHttpRequest * http); | |
95 | static void clientInterpretRequestHeaders(ClientHttpRequest * http); | |
de31d06f | 96 | static RH clientRedirectDoneWrapper; |
97 | static PF checkNoCacheDoneWrapper; | |
e6ccf245 | 98 | extern "C" CSR clientGetMoreData; |
99 | extern "C" CSS clientReplyStatus; | |
100 | extern "C" CSD clientReplyDetach; | |
528b2c61 | 101 | static void checkFailureRatio(err_type, hier_code); |
edce4d98 | 102 | |
8e2745f4 | 103 | ClientRequestContext::~ClientRequestContext() |
104 | { | |
de31d06f | 105 | /* |
a546b04b | 106 | * Release our "lock" on our parent, ClientHttpRequest, if we |
107 | * still have one | |
de31d06f | 108 | */ |
a546b04b | 109 | |
110 | if (http) | |
111 | cbdataReferenceDone(http); | |
62e76326 | 112 | |
8e2745f4 | 113 | if (acl_checklist) |
00d77d6b | 114 | delete acl_checklist; |
8e2745f4 | 115 | } |
116 | ||
de31d06f | 117 | ClientRequestContext::ClientRequestContext(ClientHttpRequest *anHttp) : http(anHttp), acl_checklist (NULL), redirect_state (REDIRECT_NONE) |
edce4d98 | 118 | { |
de31d06f | 119 | (void) cbdataReference(http); |
120 | http_access_done = 0; | |
121 | redirect_done = 0; | |
122 | no_cache_done = 0; | |
edce4d98 | 123 | } |
124 | ||
528b2c61 | 125 | CBDATA_CLASS_INIT(ClientHttpRequest); |
8e2745f4 | 126 | |
528b2c61 | 127 | void * |
128 | ClientHttpRequest::operator new (size_t size) | |
129 | { | |
130 | assert (size == sizeof (ClientHttpRequest)); | |
131 | CBDATA_INIT_TYPE(ClientHttpRequest); | |
132 | ClientHttpRequest *result = cbdataAlloc(ClientHttpRequest); | |
aa625860 | 133 | return result; |
528b2c61 | 134 | } |
135 | ||
62e76326 | 136 | void |
528b2c61 | 137 | ClientHttpRequest::operator delete (void *address) |
138 | { | |
aa625860 | 139 | ClientHttpRequest *t = static_cast<ClientHttpRequest *>(address); |
140 | cbdataFree(t); | |
528b2c61 | 141 | } |
142 | ||
0976f8db | 143 | ClientHttpRequest::ClientHttpRequest() : loggingEntry_(NULL) |
528b2c61 | 144 | { |
145 | /* reset range iterator */ | |
146 | start = current_time; | |
147 | } | |
148 | ||
0655fa4d | 149 | /* |
150 | * returns true if client specified that the object must come from the cache | |
151 | * without contacting origin server | |
152 | */ | |
153 | bool | |
154 | ClientHttpRequest::onlyIfCached()const | |
155 | { | |
156 | assert(request); | |
157 | return request->cache_control && | |
158 | EBIT_TEST(request->cache_control->mask, CC_ONLY_IF_CACHED); | |
159 | } | |
160 | ||
528b2c61 | 161 | /* |
162 | * This function is designed to serve a fairly specific purpose. | |
163 | * Occasionally our vBNS-connected caches can talk to each other, but not | |
164 | * the rest of the world. Here we try to detect frequent failures which | |
165 | * make the cache unusable (e.g. DNS lookup and connect() failures). If | |
166 | * the failure:success ratio goes above 1.0 then we go into "hit only" | |
167 | * mode where we only return UDP_HIT or UDP_MISS_NOFETCH. Neighbors | |
168 | * will only fetch HITs from us if they are using the ICP protocol. We | |
169 | * stay in this mode for 5 minutes. | |
170 | * | |
171 | * Duane W., Sept 16, 1996 | |
172 | */ | |
173 | ||
174 | #define FAILURE_MODE_TIME 300 | |
175 | ||
176 | static void | |
177 | checkFailureRatio(err_type etype, hier_code hcode) | |
178 | { | |
179 | static double magic_factor = 100.0; | |
180 | double n_good; | |
181 | double n_bad; | |
62e76326 | 182 | |
528b2c61 | 183 | if (hcode == HIER_NONE) |
62e76326 | 184 | return; |
185 | ||
528b2c61 | 186 | n_good = magic_factor / (1.0 + request_failure_ratio); |
62e76326 | 187 | |
528b2c61 | 188 | n_bad = magic_factor - n_good; |
62e76326 | 189 | |
528b2c61 | 190 | switch (etype) { |
62e76326 | 191 | |
528b2c61 | 192 | case ERR_DNS_FAIL: |
62e76326 | 193 | |
528b2c61 | 194 | case ERR_CONNECT_FAIL: |
62e76326 | 195 | |
528b2c61 | 196 | case ERR_READ_ERROR: |
62e76326 | 197 | n_bad++; |
198 | break; | |
199 | ||
528b2c61 | 200 | default: |
62e76326 | 201 | n_good++; |
528b2c61 | 202 | } |
62e76326 | 203 | |
528b2c61 | 204 | request_failure_ratio = n_bad / n_good; |
62e76326 | 205 | |
528b2c61 | 206 | if (hit_only_mode_until > squid_curtime) |
62e76326 | 207 | return; |
208 | ||
528b2c61 | 209 | if (request_failure_ratio < 1.0) |
62e76326 | 210 | return; |
211 | ||
528b2c61 | 212 | debug(33, 0) ("Failure Ratio at %4.2f\n", request_failure_ratio); |
62e76326 | 213 | |
528b2c61 | 214 | debug(33, 0) ("Going into hit-only-mode for %d minutes...\n", |
62e76326 | 215 | FAILURE_MODE_TIME / 60); |
216 | ||
528b2c61 | 217 | hit_only_mode_until = squid_curtime + FAILURE_MODE_TIME; |
62e76326 | 218 | |
528b2c61 | 219 | request_failure_ratio = 0.8; /* reset to something less than 1.0 */ |
220 | } | |
221 | ||
222 | ClientHttpRequest::~ClientHttpRequest() | |
223 | { | |
224 | debug(33, 3) ("httpRequestFree: %s\n", uri); | |
225 | /* if body_connection !NULL, then ProcessBody has not | |
226 | * found the end of the body yet | |
227 | */ | |
62e76326 | 228 | |
21b92762 | 229 | if (request && request->body_connection.getRaw() != NULL) { |
62e76326 | 230 | clientAbortBody(request); /* abort body transter */ |
21b92762 | 231 | request->body_connection = NULL; |
232 | } | |
62e76326 | 233 | |
528b2c61 | 234 | /* the ICP check here was erroneous |
235 | * - storeReleaseRequest was always called if entry was valid | |
236 | */ | |
237 | assert(logType < LOG_TYPE_MAX); | |
62e76326 | 238 | |
528b2c61 | 239 | logRequest(); |
62e76326 | 240 | |
0976f8db | 241 | loggingEntry(NULL); |
242 | ||
528b2c61 | 243 | if (request) |
62e76326 | 244 | checkFailureRatio(request->errType, al.hier.code); |
245 | ||
528b2c61 | 246 | freeResources(); |
62e76326 | 247 | |
de31d06f | 248 | #if ICAP_CLIENT |
249 | ||
250 | if (icap) { | |
251 | delete icap; | |
252 | cbdataReferenceDone(icap); | |
253 | } | |
254 | ||
255 | #endif | |
256 | if (calloutContext) | |
257 | delete calloutContext; | |
258 | ||
528b2c61 | 259 | /* moving to the next connection is handled by the context free */ |
260 | dlinkDelete(&active, &ClientActiveRequests); | |
261 | } | |
62e76326 | 262 | |
edce4d98 | 263 | /* Create a request and kick it off */ |
69660be0 | 264 | /* |
265 | * TODO: Pass in the buffers to be used in the inital Read request, as they are | |
266 | * determined by the user | |
edce4d98 | 267 | */ |
268 | int /* returns nonzero on failure */ | |
269 | clientBeginRequest(method_t method, char const *url, CSCB * streamcallback, | |
0655fa4d | 270 | CSD * streamdetach, ClientStreamData streamdata, HttpHeader const *header, |
62e76326 | 271 | char *tailbuf, size_t taillen) |
edce4d98 | 272 | { |
273 | size_t url_sz; | |
450e0c10 | 274 | HttpVersion http_ver (1, 0); |
59a1efb2 | 275 | ClientHttpRequest *http = new ClientHttpRequest; |
190154cf | 276 | HttpRequest *request; |
528b2c61 | 277 | StoreIOBuffer tempBuffer; |
98242069 | 278 | http->setConn(NULL); |
edce4d98 | 279 | http->start = current_time; |
280 | /* this is only used to adjust the connection offset in client_side.c */ | |
281 | http->req_sz = 0; | |
c8be6d7b | 282 | tempBuffer.length = taillen; |
283 | tempBuffer.data = tailbuf; | |
edce4d98 | 284 | /* client stream setup */ |
285 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, | |
0655fa4d | 286 | clientReplyStatus, new clientReplyContext(http), streamcallback, |
62e76326 | 287 | streamdetach, streamdata, tempBuffer); |
edce4d98 | 288 | /* make it visible in the 'current acctive requests list' */ |
289 | dlinkAdd(http, &http->active, &ClientActiveRequests); | |
290 | /* Set flags */ | |
a46d2c0e | 291 | /* internal requests only makes sense in an |
292 | * accelerator today. TODO: accept flags ? */ | |
293 | http->flags.accel = 1; | |
edce4d98 | 294 | /* allow size for url rewriting */ |
295 | url_sz = strlen(url) + Config.appendDomainLen + 5; | |
e6ccf245 | 296 | http->uri = (char *)xcalloc(url_sz, 1); |
edce4d98 | 297 | strcpy(http->uri, url); |
298 | ||
299 | if ((request = urlParse(method, http->uri)) == NULL) { | |
62e76326 | 300 | debug(85, 5) ("Invalid URL: %s\n", http->uri); |
301 | return -1; | |
edce4d98 | 302 | } |
62e76326 | 303 | |
69660be0 | 304 | /* |
305 | * now update the headers in request with our supplied headers. urLParse | |
306 | * should return a blank header set, but we use Update to be sure of | |
307 | * correctness. | |
edce4d98 | 308 | */ |
309 | if (header) | |
62e76326 | 310 | httpHeaderUpdate(&request->header, header, NULL); |
311 | ||
edce4d98 | 312 | http->log_uri = xstrdup(urlCanonicalClean(request)); |
62e76326 | 313 | |
edce4d98 | 314 | /* http struct now ready */ |
315 | ||
69660be0 | 316 | /* |
317 | * build new header list *? TODO | |
edce4d98 | 318 | */ |
319 | request->flags.accelerated = http->flags.accel; | |
62e76326 | 320 | |
a46d2c0e | 321 | request->flags.internalclient = 1; |
322 | ||
323 | /* this is an internally created | |
324 | * request, not subject to acceleration | |
325 | * target overrides */ | |
69660be0 | 326 | /* |
327 | * FIXME? Do we want to detect and handle internal requests of internal | |
328 | * objects ? | |
329 | */ | |
edce4d98 | 330 | |
331 | /* Internally created requests cannot have bodies today */ | |
332 | request->content_length = 0; | |
62e76326 | 333 | |
edce4d98 | 334 | request->client_addr = no_addr; |
62e76326 | 335 | |
edce4d98 | 336 | request->my_addr = no_addr; /* undefined for internal requests */ |
62e76326 | 337 | |
edce4d98 | 338 | request->my_port = 0; |
62e76326 | 339 | |
edce4d98 | 340 | request->http_ver = http_ver; |
62e76326 | 341 | |
edce4d98 | 342 | http->request = requestLink(request); |
343 | ||
344 | /* optional - skip the access check ? */ | |
de31d06f | 345 | http->calloutContext = new ClientRequestContext(http); |
346 | ||
347 | http->calloutContext->http_access_done = 0; | |
348 | ||
349 | http->calloutContext->redirect_done = 1; | |
350 | ||
351 | http->calloutContext->no_cache_done = 1; | |
352 | ||
353 | http->doCallouts(); | |
62e76326 | 354 | |
edce4d98 | 355 | return 0; |
356 | } | |
357 | ||
de31d06f | 358 | bool |
359 | ClientRequestContext::httpStateIsValid() | |
360 | { | |
361 | ClientHttpRequest *http_ = http; | |
362 | ||
363 | if (cbdataReferenceValid(http_)) | |
364 | return true; | |
365 | ||
366 | http = NULL; | |
367 | ||
368 | cbdataReferenceDone(http_); | |
369 | ||
370 | return false; | |
371 | } | |
372 | ||
edce4d98 | 373 | /* This is the entry point for external users of the client_side routines */ |
374 | void | |
de31d06f | 375 | ClientRequestContext::clientAccessCheck() |
edce4d98 | 376 | { |
de31d06f | 377 | acl_checklist = |
62e76326 | 378 | clientAclChecklistCreate(Config.accessList.http, http); |
de31d06f | 379 | acl_checklist->nonBlockingCheck(clientAccessCheckDoneWrapper, this); |
edce4d98 | 380 | } |
381 | ||
382 | void | |
de31d06f | 383 | clientAccessCheckDoneWrapper(int answer, void *data) |
edce4d98 | 384 | { |
de31d06f | 385 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; |
fbade053 | 386 | |
de31d06f | 387 | if (!calloutContext->httpStateIsValid()) |
62e76326 | 388 | return; |
62e76326 | 389 | |
de31d06f | 390 | calloutContext->clientAccessCheckDone(answer); |
391 | } | |
392 | ||
393 | void | |
394 | ClientRequestContext::clientAccessCheckDone(int answer) | |
395 | { | |
396 | acl_checklist = NULL; | |
edce4d98 | 397 | err_type page_id; |
398 | http_status status; | |
edce4d98 | 399 | debug(85, 2) ("The request %s %s is %s, because it matched '%s'\n", |
62e76326 | 400 | RequestMethodStr[http->request->method], http->uri, |
401 | answer == ACCESS_ALLOWED ? "ALLOWED" : "DENIED", | |
402 | AclMatchedName ? AclMatchedName : "NO ACL's"); | |
f5691f9c | 403 | char const *proxy_auth_msg = "<null>"; |
404 | ||
405 | if (http->getConn().getRaw() != NULL && http->getConn()->auth_user_request != NULL) | |
406 | proxy_auth_msg = http->getConn()->auth_user_request->denyMessage("<null>"); | |
407 | else if (http->request->auth_user_request != NULL) | |
408 | proxy_auth_msg = http->request->auth_user_request->denyMessage("<null>"); | |
62e76326 | 409 | |
de31d06f | 410 | if (answer != ACCESS_ALLOWED) { |
62e76326 | 411 | /* Send an error */ |
62e76326 | 412 | debug(85, 5) ("Access Denied: %s\n", http->uri); |
413 | debug(85, 5) ("AclMatchedName = %s\n", | |
414 | AclMatchedName ? AclMatchedName : "<null>"); | |
415 | debug(85, 5) ("Proxy Auth Message = %s\n", | |
416 | proxy_auth_msg ? proxy_auth_msg : "<null>"); | |
417 | /* | |
418 | * NOTE: get page_id here, based on AclMatchedName because if | |
419 | * USE_DELAY_POOLS is enabled, then AclMatchedName gets clobbered in | |
420 | * the clientCreateStoreEntry() call just below. Pedro Ribeiro | |
421 | * <pribeiro@isel.pt> | |
422 | */ | |
423 | page_id = aclGetDenyInfoPage(&Config.denyInfoList, AclMatchedName); | |
424 | http->logType = LOG_TCP_DENIED; | |
425 | ||
426 | if (answer == ACCESS_REQ_PROXY_AUTH || aclIsProxyAuth(AclMatchedName)) { | |
427 | if (!http->flags.accel) { | |
428 | /* Proxy authorisation needed */ | |
429 | status = HTTP_PROXY_AUTHENTICATION_REQUIRED; | |
430 | } else { | |
431 | /* WWW authorisation needed */ | |
432 | status = HTTP_UNAUTHORIZED; | |
433 | } | |
434 | ||
435 | if (page_id == ERR_NONE) | |
436 | page_id = ERR_CACHE_ACCESS_DENIED; | |
437 | } else { | |
438 | status = HTTP_FORBIDDEN; | |
439 | ||
440 | if (page_id == ERR_NONE) | |
441 | page_id = ERR_ACCESS_DENIED; | |
442 | } | |
443 | ||
de31d06f | 444 | clientStreamNode *node = (clientStreamNode *)http->client_stream.tail->prev->data; |
0655fa4d | 445 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
446 | assert (repContext); | |
447 | repContext->setReplyToError(page_id, status, | |
448 | http->request->method, NULL, | |
a2ac85d9 | 449 | http->getConn().getRaw() != NULL ? &http->getConn()->peer.sin_addr : &no_addr, http->request, |
450 | NULL, http->getConn().getRaw() != NULL | |
98242069 | 451 | && http->getConn()->auth_user_request ? http->getConn()-> |
0655fa4d | 452 | auth_user_request : http->request->auth_user_request); |
62e76326 | 453 | node = (clientStreamNode *)http->client_stream.tail->data; |
454 | clientStreamRead(node, http, node->readBuffer); | |
a546b04b | 455 | return; |
edce4d98 | 456 | } |
de31d06f | 457 | |
458 | /* ACCESS_ALLOWED continues here ... */ | |
459 | safe_free(http->uri); | |
460 | ||
461 | http->uri = xstrdup(urlCanonical(http->request)); | |
462 | ||
463 | http->doCallouts(); | |
464 | } | |
465 | ||
466 | #if ICAP_CLIENT | |
467 | void | |
468 | ClientRequestContext::icapAccessCheck() | |
469 | { | |
470 | ICAPAccessCheck *icap_access_check; | |
471 | ||
e8fe1384 | 472 | icap_access_check = new ICAPAccessCheck(ICAP::methodReqmod, ICAP::pointPreCache, http->request, NULL, icapAclCheckDoneWrapper, this); |
473 | ||
474 | if (icap_access_check != NULL) { | |
de31d06f | 475 | icap_access_check->check(); |
476 | return; | |
477 | } | |
478 | ||
479 | http->doCallouts(); | |
480 | } | |
481 | ||
482 | static void | |
483 | icapAclCheckDoneWrapper(ICAPServiceRep::Pointer service, void *data) | |
484 | { | |
485 | ClientRequestContext *calloutContext = (ClientRequestContext *)data; | |
486 | ||
487 | if (!calloutContext->httpStateIsValid()) | |
488 | return; | |
489 | ||
490 | calloutContext->icapAclCheckDone(service); | |
491 | } | |
492 | ||
493 | void | |
494 | ClientRequestContext::icapAclCheckDone(ICAPServiceRep::Pointer service) | |
495 | { | |
496 | /* | |
497 | * No matching ICAP service in the config file | |
498 | */ | |
499 | ||
500 | if (service == NULL) { | |
501 | http->doCallouts(); | |
502 | return; | |
503 | } | |
504 | ||
505 | /* | |
506 | * Setup ICAP state and such. If successful, just return. | |
507 | * We'll get back to doCallouts() after REQMOD is done. | |
508 | */ | |
509 | if (0 == http->doIcap(service)) | |
510 | return; | |
511 | ||
512 | /* | |
513 | * If doIcap() fails, then we have to either return an error | |
514 | * to the user, or keep going without ICAP. | |
515 | */ | |
516 | fatal("Fix this case in ClientRequestContext::icapAclCheckDone()"); | |
517 | ||
518 | http->doCallouts(); | |
edce4d98 | 519 | } |
520 | ||
de31d06f | 521 | #endif |
522 | ||
14cc8559 | 523 | static void |
524 | clientRedirectAccessCheckDone(int answer, void *data) | |
525 | { | |
526 | ClientRequestContext *context = (ClientRequestContext *)data; | |
59a1efb2 | 527 | ClientHttpRequest *http = context->http; |
14cc8559 | 528 | context->acl_checklist = NULL; |
529 | ||
530 | if (answer == ACCESS_ALLOWED) | |
de31d06f | 531 | redirectStart(http, clientRedirectDoneWrapper, context); |
14cc8559 | 532 | else |
de31d06f | 533 | context->clientRedirectDone(NULL); |
14cc8559 | 534 | } |
535 | ||
de31d06f | 536 | void |
537 | ClientRequestContext::clientRedirectStart() | |
14cc8559 | 538 | { |
14cc8559 | 539 | debug(33, 5) ("clientRedirectStart: '%s'\n", http->uri); |
540 | ||
14cc8559 | 541 | if (Config.accessList.redirector) { |
de31d06f | 542 | acl_checklist = clientAclChecklistCreate(Config.accessList.redirector, http); |
543 | acl_checklist->nonBlockingCheck(clientRedirectAccessCheckDone, this); | |
14cc8559 | 544 | } else |
de31d06f | 545 | redirectStart(http, clientRedirectDoneWrapper, this); |
14cc8559 | 546 | } |
547 | ||
edce4d98 | 548 | static int |
59a1efb2 | 549 | clientCachable(ClientHttpRequest * http) |
edce4d98 | 550 | { |
190154cf | 551 | HttpRequest *req = http->request; |
edce4d98 | 552 | method_t method = req->method; |
62e76326 | 553 | |
edce4d98 | 554 | if (req->protocol == PROTO_HTTP) |
62e76326 | 555 | return httpCachable(method); |
556 | ||
edce4d98 | 557 | /* FTP is always cachable */ |
558 | if (req->protocol == PROTO_WAIS) | |
62e76326 | 559 | return 0; |
560 | ||
69660be0 | 561 | /* |
562 | * The below looks questionable: what non HTTP protocols use connect, | |
563 | * trace, put and post? RC | |
edce4d98 | 564 | */ |
565 | if (method == METHOD_CONNECT) | |
62e76326 | 566 | return 0; |
567 | ||
edce4d98 | 568 | if (method == METHOD_TRACE) |
62e76326 | 569 | return 0; |
570 | ||
edce4d98 | 571 | if (method == METHOD_PUT) |
62e76326 | 572 | return 0; |
573 | ||
edce4d98 | 574 | if (method == METHOD_POST) |
a46d2c0e | 575 | return 0; |
576 | ||
577 | /* XXX POST may be cached sometimes.. ignored | |
578 | ||
579 | * for now */ | |
edce4d98 | 580 | if (req->protocol == PROTO_GOPHER) |
62e76326 | 581 | return gopherCachable(req); |
582 | ||
edce4d98 | 583 | if (req->protocol == PROTO_CACHEOBJ) |
62e76326 | 584 | return 0; |
585 | ||
edce4d98 | 586 | return 1; |
587 | } | |
588 | ||
589 | static int | |
59a1efb2 | 590 | clientHierarchical(ClientHttpRequest * http) |
edce4d98 | 591 | { |
592 | const char *url = http->uri; | |
190154cf | 593 | HttpRequest *request = http->request; |
edce4d98 | 594 | method_t method = request->method; |
595 | const wordlist *p = NULL; | |
596 | ||
69660be0 | 597 | /* |
598 | * IMS needs a private key, so we can use the hierarchy for IMS only if our | |
599 | * neighbors support private keys | |
600 | */ | |
62e76326 | 601 | |
edce4d98 | 602 | if (request->flags.ims && !neighbors_do_private_keys) |
62e76326 | 603 | return 0; |
604 | ||
69660be0 | 605 | /* |
606 | * This is incorrect: authenticating requests can be sent via a hierarchy | |
06b97e72 | 607 | * (they can even be cached if the correct headers are set on the reply) |
edce4d98 | 608 | */ |
609 | if (request->flags.auth) | |
62e76326 | 610 | return 0; |
611 | ||
edce4d98 | 612 | if (method == METHOD_TRACE) |
62e76326 | 613 | return 1; |
614 | ||
edce4d98 | 615 | if (method != METHOD_GET) |
62e76326 | 616 | return 0; |
617 | ||
edce4d98 | 618 | /* scan hierarchy_stoplist */ |
619 | for (p = Config.hierarchy_stoplist; p; p = p->next) | |
62e76326 | 620 | if (strstr(url, p->key)) |
621 | return 0; | |
622 | ||
edce4d98 | 623 | if (request->flags.loopdetect) |
62e76326 | 624 | return 0; |
625 | ||
edce4d98 | 626 | if (request->protocol == PROTO_HTTP) |
62e76326 | 627 | return httpCachable(method); |
628 | ||
edce4d98 | 629 | if (request->protocol == PROTO_GOPHER) |
62e76326 | 630 | return gopherCachable(request); |
631 | ||
edce4d98 | 632 | if (request->protocol == PROTO_WAIS) |
62e76326 | 633 | return 0; |
634 | ||
edce4d98 | 635 | if (request->protocol == PROTO_CACHEOBJ) |
62e76326 | 636 | return 0; |
637 | ||
edce4d98 | 638 | return 1; |
639 | } | |
640 | ||
641 | ||
642 | static void | |
59a1efb2 | 643 | clientInterpretRequestHeaders(ClientHttpRequest * http) |
edce4d98 | 644 | { |
190154cf | 645 | HttpRequest *request = http->request; |
edce4d98 | 646 | const HttpHeader *req_hdr = &request->header; |
647 | int no_cache = 0; | |
a787b56a | 648 | #if !(ESI) || defined(USE_USERAGENT_LOG) || defined(USE_REFERER_LOG) |
62e76326 | 649 | |
edce4d98 | 650 | const char *str; |
651 | #endif | |
62e76326 | 652 | |
edce4d98 | 653 | request->imslen = -1; |
654 | request->ims = httpHeaderGetTime(req_hdr, HDR_IF_MODIFIED_SINCE); | |
62e76326 | 655 | |
edce4d98 | 656 | if (request->ims > 0) |
62e76326 | 657 | request->flags.ims = 1; |
658 | ||
edce4d98 | 659 | #if ESI |
69660be0 | 660 | /* |
661 | * We ignore Cache-Control as per the Edge Architecture Section 3. See | |
662 | * www.esi.org for more information. | |
edce4d98 | 663 | */ |
664 | #else | |
62e76326 | 665 | |
edce4d98 | 666 | if (httpHeaderHas(req_hdr, HDR_PRAGMA)) { |
62e76326 | 667 | String s = httpHeaderGetList(req_hdr, HDR_PRAGMA); |
668 | ||
669 | if (strListIsMember(&s, "no-cache", ',')) | |
670 | no_cache++; | |
671 | ||
672 | s.clean(); | |
edce4d98 | 673 | } |
62e76326 | 674 | |
edce4d98 | 675 | if (request->cache_control) |
62e76326 | 676 | if (EBIT_TEST(request->cache_control->mask, CC_NO_CACHE)) |
677 | no_cache++; | |
678 | ||
69660be0 | 679 | /* |
62e76326 | 680 | * Work around for supporting the Reload button in IE browsers when Squid |
681 | * is used as an accelerator or transparent proxy, by turning accelerated | |
682 | * IMS request to no-cache requests. Now knows about IE 5.5 fix (is | |
683 | * actually only fixed in SP1, but we can't tell whether we are talking to | |
684 | * SP1 or not so all 5.5 versions are treated 'normally'). | |
685 | */ | |
edce4d98 | 686 | if (Config.onoff.ie_refresh) { |
62e76326 | 687 | if (http->flags.accel && request->flags.ims) { |
688 | if ((str = httpHeaderGetStr(req_hdr, HDR_USER_AGENT))) { | |
689 | if (strstr(str, "MSIE 5.01") != NULL) | |
690 | no_cache++; | |
691 | else if (strstr(str, "MSIE 5.0") != NULL) | |
692 | no_cache++; | |
693 | else if (strstr(str, "MSIE 4.") != NULL) | |
694 | no_cache++; | |
695 | else if (strstr(str, "MSIE 3.") != NULL) | |
696 | no_cache++; | |
697 | } | |
698 | } | |
edce4d98 | 699 | } |
62e76326 | 700 | |
edce4d98 | 701 | #endif |
702 | if (no_cache) { | |
703 | #if HTTP_VIOLATIONS | |
62e76326 | 704 | |
705 | if (Config.onoff.reload_into_ims) | |
706 | request->flags.nocache_hack = 1; | |
707 | else if (refresh_nocache_hack) | |
708 | request->flags.nocache_hack = 1; | |
709 | else | |
edce4d98 | 710 | #endif |
62e76326 | 711 | |
712 | request->flags.nocache = 1; | |
edce4d98 | 713 | } |
62e76326 | 714 | |
edce4d98 | 715 | /* ignore range header in non-GETs */ |
716 | if (request->method == METHOD_GET) { | |
62e76326 | 717 | request->range = httpHeaderGetRange(req_hdr); |
718 | ||
719 | if (request->range) { | |
720 | request->flags.range = 1; | |
721 | clientStreamNode *node = (clientStreamNode *)http->client_stream.tail->data; | |
722 | /* XXX: This is suboptimal. We should give the stream the range set, | |
723 | * and thereby let the top of the stream set the offset when the | |
724 | * size becomes known. As it is, we will end up requesting from 0 | |
725 | * for evey -X range specification. | |
726 | * RBC - this may be somewhat wrong. We should probably set the range | |
727 | * iter up at this point. | |
728 | */ | |
729 | node->readBuffer.offset = request->range->lowestOffset(0); | |
730 | http->range_iter.pos = request->range->begin(); | |
731 | http->range_iter.valid = true; | |
732 | } | |
edce4d98 | 733 | } |
62e76326 | 734 | |
edce4d98 | 735 | if (httpHeaderHas(req_hdr, HDR_AUTHORIZATION)) |
62e76326 | 736 | request->flags.auth = 1; |
737 | ||
edce4d98 | 738 | if (request->login[0] != '\0') |
62e76326 | 739 | request->flags.auth = 1; |
740 | ||
edce4d98 | 741 | if (httpHeaderHas(req_hdr, HDR_VIA)) { |
62e76326 | 742 | String s = httpHeaderGetList(req_hdr, HDR_VIA); |
743 | /* | |
744 | * ThisCache cannot be a member of Via header, "1.0 ThisCache" can. | |
745 | * Note ThisCache2 has a space prepended to the hostname so we don't | |
746 | * accidentally match super-domains. | |
747 | */ | |
748 | ||
749 | if (strListIsSubstr(&s, ThisCache2, ',')) { | |
750 | debugObj(33, 1, "WARNING: Forwarding loop detected for:\n", | |
751 | request, (ObjPackMethod) & httpRequestPack); | |
752 | request->flags.loopdetect = 1; | |
753 | } | |
754 | ||
edce4d98 | 755 | #if FORW_VIA_DB |
62e76326 | 756 | fvdbCountVia(s.buf()); |
757 | ||
edce4d98 | 758 | #endif |
62e76326 | 759 | |
760 | s.clean(); | |
edce4d98 | 761 | } |
62e76326 | 762 | |
edce4d98 | 763 | #if USE_USERAGENT_LOG |
764 | if ((str = httpHeaderGetStr(req_hdr, HDR_USER_AGENT))) | |
7928e475 | 765 | logUserAgent(fqdnFromAddr(http->getConn().getRaw() ? http->getConn()->log_addr : no_addr), str); |
62e76326 | 766 | |
edce4d98 | 767 | #endif |
768 | #if USE_REFERER_LOG | |
62e76326 | 769 | |
edce4d98 | 770 | if ((str = httpHeaderGetStr(req_hdr, HDR_REFERER))) |
7928e475 | 771 | logReferer(fqdnFromAddr(http->getConn().getRaw() ? http->getConn()->log_addr : no_addr), str, http->log_uri); |
62e76326 | 772 | |
edce4d98 | 773 | #endif |
774 | #if FORW_VIA_DB | |
62e76326 | 775 | |
edce4d98 | 776 | if (httpHeaderHas(req_hdr, HDR_X_FORWARDED_FOR)) { |
62e76326 | 777 | String s = httpHeaderGetList(req_hdr, HDR_X_FORWARDED_FOR); |
778 | fvdbCountForw(s.buf()); | |
779 | s.clean(); | |
edce4d98 | 780 | } |
62e76326 | 781 | |
edce4d98 | 782 | #endif |
783 | if (request->method == METHOD_TRACE) { | |
62e76326 | 784 | request->max_forwards = httpHeaderGetInt(req_hdr, HDR_MAX_FORWARDS); |
edce4d98 | 785 | } |
62e76326 | 786 | |
edce4d98 | 787 | if (clientCachable(http)) |
62e76326 | 788 | request->flags.cachable = 1; |
789 | ||
edce4d98 | 790 | if (clientHierarchical(http)) |
62e76326 | 791 | request->flags.hierarchical = 1; |
792 | ||
edce4d98 | 793 | debug(85, 5) ("clientInterpretRequestHeaders: REQ_NOCACHE = %s\n", |
62e76326 | 794 | request->flags.nocache ? "SET" : "NOT SET"); |
795 | ||
edce4d98 | 796 | debug(85, 5) ("clientInterpretRequestHeaders: REQ_CACHABLE = %s\n", |
62e76326 | 797 | request->flags.cachable ? "SET" : "NOT SET"); |
798 | ||
edce4d98 | 799 | debug(85, 5) ("clientInterpretRequestHeaders: REQ_HIERARCHICAL = %s\n", |
62e76326 | 800 | request->flags.hierarchical ? "SET" : "NOT SET"); |
edce4d98 | 801 | } |
802 | ||
803 | void | |
de31d06f | 804 | clientRedirectDoneWrapper(void *data, char *result) |
edce4d98 | 805 | { |
de31d06f | 806 | ClientRequestContext *calloutContext = (ClientRequestContext *)data; |
db02222f | 807 | |
de31d06f | 808 | if (!calloutContext->httpStateIsValid()) |
62e76326 | 809 | return; |
62e76326 | 810 | |
de31d06f | 811 | calloutContext->clientRedirectDone(result); |
812 | } | |
813 | ||
814 | void | |
815 | ClientRequestContext::clientRedirectDone(char *result) | |
816 | { | |
190154cf | 817 | HttpRequest *new_request = NULL; |
818 | HttpRequest *old_request = http->request; | |
edce4d98 | 819 | debug(85, 5) ("clientRedirectDone: '%s' result=%s\n", http->uri, |
62e76326 | 820 | result ? result : "NULL"); |
de31d06f | 821 | assert(redirect_state == REDIRECT_PENDING); |
822 | redirect_state = REDIRECT_DONE; | |
62e76326 | 823 | |
edce4d98 | 824 | if (result) { |
62e76326 | 825 | http_status status = (http_status) atoi(result); |
826 | ||
827 | if (status == HTTP_MOVED_PERMANENTLY | |
828 | || status == HTTP_MOVED_TEMPORARILY | |
829 | || status == HTTP_SEE_OTHER | |
830 | || status == HTTP_TEMPORARY_REDIRECT) { | |
831 | char *t = result; | |
832 | ||
833 | if ((t = strchr(result, ':')) != NULL) { | |
834 | http->redirect.status = status; | |
835 | http->redirect.location = xstrdup(t + 1); | |
836 | } else { | |
837 | debug(85, 1) ("clientRedirectDone: bad input: %s\n", result); | |
838 | } | |
2baf58c3 | 839 | } else if (strcmp(result, http->uri)) |
62e76326 | 840 | new_request = urlParse(old_request->method, result); |
edce4d98 | 841 | } |
62e76326 | 842 | |
edce4d98 | 843 | if (new_request) { |
62e76326 | 844 | safe_free(http->uri); |
845 | http->uri = xstrdup(urlCanonical(new_request)); | |
846 | new_request->http_ver = old_request->http_ver; | |
847 | httpHeaderAppend(&new_request->header, &old_request->header); | |
848 | new_request->client_addr = old_request->client_addr; | |
47b0c1fa | 849 | new_request->client_port = old_request->client_port; |
62e76326 | 850 | new_request->my_addr = old_request->my_addr; |
851 | new_request->my_port = old_request->my_port; | |
852 | new_request->flags = old_request->flags; | |
3c1f01bc | 853 | new_request->flags.redirected = 1; |
62e76326 | 854 | |
855 | if (old_request->auth_user_request) { | |
856 | new_request->auth_user_request = old_request->auth_user_request; | |
f5691f9c | 857 | |
858 | new_request->auth_user_request->lock() | |
859 | ||
860 | ; | |
62e76326 | 861 | } |
862 | ||
a2ac85d9 | 863 | if (old_request->body_connection.getRaw() != NULL) { |
62e76326 | 864 | new_request->body_connection = old_request->body_connection; |
865 | old_request->body_connection = NULL; | |
866 | } | |
867 | ||
868 | new_request->content_length = old_request->content_length; | |
abb929f0 | 869 | new_request->extacl_user = old_request->extacl_user; |
870 | new_request->extacl_passwd = old_request->extacl_passwd; | |
62e76326 | 871 | new_request->flags.proxy_keepalive = old_request->flags.proxy_keepalive; |
872 | requestUnlink(old_request); | |
873 | http->request = requestLink(new_request); | |
edce4d98 | 874 | } |
62e76326 | 875 | |
edce4d98 | 876 | /* FIXME PIPELINE: This is innacurate during pipelining */ |
62e76326 | 877 | |
a2ac85d9 | 878 | if (http->getConn().getRaw() != NULL) |
98242069 | 879 | fd_note(http->getConn()->fd, http->uri); |
62e76326 | 880 | |
c8be6d7b | 881 | assert(http->uri); |
62e76326 | 882 | |
de31d06f | 883 | http->doCallouts(); |
edce4d98 | 884 | } |
885 | ||
886 | void | |
8e2745f4 | 887 | ClientRequestContext::checkNoCache() |
edce4d98 | 888 | { |
de31d06f | 889 | acl_checklist = clientAclChecklistCreate(Config.accessList.noCache, http); |
890 | acl_checklist->nonBlockingCheck(checkNoCacheDoneWrapper, cbdataReference(this)); | |
edce4d98 | 891 | } |
892 | ||
de31d06f | 893 | static void |
894 | checkNoCacheDoneWrapper(int answer, void *data) | |
edce4d98 | 895 | { |
de31d06f | 896 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; |
e4a67a80 | 897 | |
de31d06f | 898 | if (!calloutContext->httpStateIsValid()) |
899 | return; | |
900 | ||
901 | calloutContext->checkNoCacheDone(answer); | |
8e2745f4 | 902 | } |
4fb35c3c | 903 | |
8e2745f4 | 904 | void |
905 | ClientRequestContext::checkNoCacheDone(int answer) | |
62e76326 | 906 | { |
8e2745f4 | 907 | acl_checklist = NULL; |
de31d06f | 908 | http->request->flags.cachable = answer; |
909 | http->doCallouts(); | |
edce4d98 | 910 | } |
911 | ||
69660be0 | 912 | /* |
913 | * Identify requests that do not go through the store and client side stream | |
914 | * and forward them to the appropriate location. All other requests, request | |
915 | * them. | |
edce4d98 | 916 | */ |
917 | void | |
8e2745f4 | 918 | ClientHttpRequest::processRequest() |
edce4d98 | 919 | { |
edce4d98 | 920 | debug(85, 4) ("clientProcessRequest: %s '%s'\n", |
62e76326 | 921 | RequestMethodStr[request->method], uri); |
922 | ||
2baf58c3 | 923 | if (request->method == METHOD_CONNECT && !redirect.status) { |
62e76326 | 924 | logType = LOG_TCP_MISS; |
925 | sslStart(this, &out.size, &al.http.code); | |
926 | return; | |
edce4d98 | 927 | } |
62e76326 | 928 | |
8e2745f4 | 929 | httpStart(); |
930 | } | |
931 | ||
932 | void | |
933 | ClientHttpRequest::httpStart() | |
934 | { | |
935 | logType = LOG_TAG_NONE; | |
936 | debug(85, 4) ("ClientHttpRequest::httpStart: %s for '%s'\n", | |
62e76326 | 937 | log_tags[logType], uri); |
edce4d98 | 938 | /* no one should have touched this */ |
8e2745f4 | 939 | assert(out.offset == 0); |
edce4d98 | 940 | /* Use the Stream Luke */ |
8e2745f4 | 941 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->data; |
942 | clientStreamRead(node, this, node->readBuffer); | |
edce4d98 | 943 | } |
0655fa4d | 944 | |
945 | bool | |
946 | ClientHttpRequest::gotEnough() const | |
947 | { | |
86a2f789 | 948 | /** TODO: should be querying the stream. */ |
0655fa4d | 949 | int contentLength = |
06a5ae20 | 950 | memObject()->getReply()->bodySize(request->method); |
0655fa4d | 951 | assert(contentLength >= 0); |
952 | ||
953 | if (out.offset < contentLength) | |
954 | return false; | |
955 | ||
956 | return true; | |
957 | } | |
958 | ||
b51aec66 | 959 | void |
960 | ClientHttpRequest::maxReplyBodySize(ssize_t clen) | |
961 | { | |
962 | maxReplyBodySize_ = clen; | |
963 | } | |
964 | ||
965 | ssize_t | |
966 | ClientHttpRequest::maxReplyBodySize() const | |
967 | { | |
968 | return maxReplyBodySize_; | |
969 | } | |
970 | ||
971 | bool | |
972 | ClientHttpRequest::isReplyBodyTooLarge(ssize_t clen) const | |
973 | { | |
974 | if (0 == maxReplyBodySize()) | |
975 | return 0; /* disabled */ | |
976 | ||
977 | if (clen < 0) | |
978 | return 0; /* unknown */ | |
979 | ||
980 | return clen > maxReplyBodySize(); | |
981 | } | |
86a2f789 | 982 | |
983 | void | |
984 | ClientHttpRequest::storeEntry(StoreEntry *newEntry) | |
985 | { | |
986 | entry_ = newEntry; | |
987 | } | |
988 | ||
0976f8db | 989 | void |
990 | ClientHttpRequest::loggingEntry(StoreEntry *newEntry) | |
991 | { | |
992 | if (loggingEntry_) | |
993 | storeUnlockObject(loggingEntry_); | |
994 | ||
995 | loggingEntry_ = newEntry; | |
996 | ||
997 | if (loggingEntry_) | |
998 | storeLockObject(loggingEntry_); | |
999 | } | |
86a2f789 | 1000 | |
de31d06f | 1001 | /* |
1002 | * doCallouts() - This function controls the order of "callout" | |
1003 | * executions, including non-blocking access control checks, the | |
1004 | * redirector, and ICAP. Previously, these callouts were chained | |
1005 | * together such that "clientAccessCheckDone()" would call | |
1006 | * "clientRedirectStart()" and so on. | |
1007 | * | |
1008 | * The ClientRequestContext (aka calloutContext) class holds certain | |
1009 | * state data for the callout/callback operations. Previously | |
1010 | * ClientHttpRequest would sort of hand off control to ClientRequestContext | |
1011 | * for a short time. ClientRequestContext would then delete itself | |
1012 | * and pass control back to ClientHttpRequest when all callouts | |
1013 | * were finished. | |
1014 | * | |
1015 | * This caused some problems for ICAP because we want to make the | |
1016 | * ICAP callout after checking ACLs, but before checking the no_cache | |
1017 | * list. We can't stuff the ICAP state into the ClientRequestContext | |
1018 | * class because we still need the ICAP state after ClientRequestContext | |
1019 | * goes away. | |
1020 | * | |
1021 | * Note that ClientRequestContext is created before the first call | |
1022 | * to doCallouts(). | |
1023 | * | |
1024 | * If one of the callouts notices that ClientHttpRequest is no | |
1025 | * longer valid, it should call cbdataReferenceDone() so that | |
1026 | * ClientHttpRequest's reference count goes to zero and it will get | |
1027 | * deleted. ClientHttpRequest will then delete ClientRequestContext. | |
1028 | * | |
1029 | * Note that we set the _done flags here before actually starting | |
1030 | * the callout. This is strictly for convenience. | |
1031 | */ | |
1032 | ||
1033 | void | |
1034 | ClientHttpRequest::doCallouts() | |
1035 | { | |
1036 | assert(calloutContext); | |
1037 | ||
1038 | if (!calloutContext->http_access_done) { | |
1039 | calloutContext->http_access_done = 1; | |
1040 | calloutContext->clientAccessCheck(); | |
1041 | return; | |
1042 | } | |
1043 | ||
1044 | #if ICAP_CLIENT | |
ab7ac359 | 1045 | if (TheICAPConfig.onoff && !calloutContext->icap_acl_check_done) { |
de31d06f | 1046 | calloutContext->icap_acl_check_done = 1; |
1047 | calloutContext->icapAccessCheck(); | |
1048 | return; | |
1049 | } | |
1050 | ||
1051 | #endif | |
1052 | ||
1053 | if (!calloutContext->redirect_done) { | |
1054 | calloutContext->redirect_done = 1; | |
1055 | assert(calloutContext->redirect_state == REDIRECT_NONE); | |
1056 | ||
1057 | if (Config.Program.redirect) { | |
1058 | calloutContext->redirect_state = REDIRECT_PENDING; | |
1059 | calloutContext->clientRedirectStart(); | |
1060 | return; | |
1061 | } | |
1062 | } | |
1063 | ||
1064 | if (!calloutContext->no_cache_done) { | |
1065 | calloutContext->no_cache_done = 1; | |
1066 | ||
1067 | if (Config.accessList.noCache && request->flags.cachable) { | |
1068 | calloutContext->checkNoCache(); | |
1069 | return; | |
1070 | } | |
1071 | } | |
1072 | ||
1073 | cbdataReferenceDone(calloutContext->http); | |
1074 | delete calloutContext; | |
1075 | calloutContext = NULL; | |
1076 | clientInterpretRequestHeaders(this); | |
1077 | #if HEADERS_LOG | |
1078 | ||
1079 | headersLog(0, 1, request->method, request); | |
1080 | #endif | |
1081 | ||
1082 | processRequest(); | |
1083 | } | |
1084 | ||
86a2f789 | 1085 | #ifndef _USE_INLINE_ |
1086 | #include "client_side_request.cci" | |
1087 | #endif | |
de31d06f | 1088 | |
1089 | #if ICAP_CLIENT | |
1090 | /* | |
1091 | * Initiate an ICAP transaction. Return 0 if all is well, or -1 upon error. | |
1092 | * Caller will handle error condition by generating a Squid error message | |
1093 | * or take other action. | |
1094 | */ | |
1095 | int | |
1096 | ClientHttpRequest::doIcap(ICAPServiceRep::Pointer service) | |
1097 | { | |
1098 | debug(85,3)("ClientHttpRequest::doIcap() called\n"); | |
1099 | assert(NULL == icap); | |
1100 | icap = new ICAPClientReqmodPrecache(service); | |
1101 | (void) cbdataReference(icap); | |
1102 | icap->startReqMod(this, request); | |
1103 | icap->doneSending(); | |
1104 | return 0; | |
1105 | } | |
1106 | ||
1107 | /* | |
1108 | * Called by ICAPAnchor when it has space available for us. | |
1109 | */ | |
1110 | void | |
1111 | ClientHttpRequest::icapSpaceAvailable() | |
1112 | { | |
1113 | debug(85,3)("ClientHttpRequest::icapSpaceAvailable() called\n"); | |
1114 | } | |
1115 | ||
1116 | void | |
1117 | ClientHttpRequest::takeAdaptedHeaders(HttpMsg *msg) | |
1118 | { | |
1119 | debug(85,3)("ClientHttpRequest::takeAdaptedHeaders() called\n"); | |
1120 | assert(cbdataReferenceValid(this)); // indicates bug | |
1121 | ||
1122 | HttpRequest *new_req = dynamic_cast<HttpRequest*>(msg); | |
1123 | assert(new_req); | |
1124 | /* | |
1125 | * Replace the old request with the new request. First, | |
1126 | * Move the "body_connection" over, then unlink old and | |
1127 | * link new to the http state. | |
1128 | */ | |
1129 | new_req->body_connection = request->body_connection; | |
1130 | request->body_connection = NULL; | |
1131 | requestUnlink(request); | |
1132 | request = requestLink(new_req); | |
1133 | /* | |
1134 | * Store the new URI for logging | |
1135 | */ | |
1136 | xfree(uri); | |
1137 | uri = xstrdup(urlCanonical(request)); | |
1138 | setLogUri(this, urlCanonicalClean(request)); | |
1139 | assert(request->method); | |
1140 | ||
1141 | doCallouts(); | |
1142 | ||
1143 | debug(85,3)("ClientHttpRequest::takeAdaptedHeaders() finished\n"); | |
1144 | } | |
1145 | ||
1146 | void | |
1147 | ClientHttpRequest::takeAdaptedBody(MemBuf *buf) | |
1148 | { | |
1149 | debug(85,3)("ClientHttpRequest::takeAdaptedBody() called\n"); | |
1150 | } | |
1151 | ||
1152 | void | |
1153 | ClientHttpRequest::doneAdapting() | |
1154 | { | |
1155 | debug(85,3)("ClientHttpRequest::doneAdapting() called\n"); | |
1156 | } | |
1157 | ||
1158 | void | |
1159 | ClientHttpRequest::abortAdapting() | |
1160 | { | |
1161 | debug(85,3)("ClientHttpRequest::abortAdapting() called\n"); | |
1162 | ||
1163 | if ((NULL == storeEntry()) || storeEntry()->isEmpty()) { | |
1164 | debug(85,3)("WARNING: ICAP REQMOD callout failed, proceeding with original request\n"); | |
1165 | doCallouts(); | |
1166 | #if ICAP_HARD_ERROR | |
1167 | ||
1168 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->prev->data; | |
1169 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1170 | assert (repContext); | |
1171 | // Note if this code is ever used, clientBuildError() should be modified to | |
1172 | // accept an errno arg | |
1173 | repContext->setReplyToError(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR, | |
1174 | request->method, NULL, | |
1175 | getConn().getRaw() != NULL ? &getConn()->peer.sin_addr : &no_addr, request, | |
1176 | NULL, getConn().getRaw() != NULL | |
1177 | && getConn()->auth_user_request ? getConn()-> | |
1178 | auth_user_request : request->auth_user_request, errno); | |
1179 | node = (clientStreamNode *)client_stream.tail->data; | |
1180 | clientStreamRead(node, this, node->readBuffer); | |
1181 | #endif | |
1182 | ||
1183 | return; | |
1184 | } | |
1185 | ||
1186 | debug(0,0)("write me at %s:%d\n", __FILE__,__LINE__); | |
1187 | } | |
1188 | ||
1189 | #endif |