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edce4d98 | 1 | |
2 | /* | |
262a0e14 | 3 | * $Id$ |
26ac0430 | 4 | * |
ae45c4de | 5 | * DEBUG: section 85 Client-side Request Routines |
6 | * AUTHOR: Robert Collins (Originally Duane Wessels in client_side.c) | |
26ac0430 | 7 | * |
edce4d98 | 8 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
9 | * ---------------------------------------------------------- | |
0a9297f6 | 10 | * |
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. | |
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 | |
32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. | |
33 | * | |
edce4d98 | 34 | */ |
35 | ||
36 | ||
69660be0 | 37 | /* |
38 | * General logic of request processing: | |
26ac0430 | 39 | * |
69660be0 | 40 | * We run a series of tests to determine if access will be permitted, and to do |
41 | * any redirection. Then we call into the result clientStream to retrieve data. | |
42 | * From that point on it's up to reply management. | |
edce4d98 | 43 | */ |
44 | ||
45 | #include "squid.h" | |
c0941a6a AR |
46 | #include "acl/FilledChecklist.h" |
47 | #include "acl/Gadgets.h" | |
a83c6ed6 | 48 | #if USE_ADAPTATION |
62c7f90e | 49 | #include "adaptation/AccessCheck.h" |
a22e6cd3 | 50 | #include "adaptation/Iterator.h" |
abd4b611 | 51 | #include "adaptation/Service.h" |
3ff65596 AR |
52 | #if ICAP_CLIENT |
53 | #include "adaptation/icap/History.h" | |
54 | #endif | |
de31d06f | 55 | #endif |
27bc2077 AJ |
56 | #include "auth/UserRequest.h" |
57 | #include "clientStream.h" | |
58 | #include "client_side.h" | |
59 | #include "client_side_reply.h" | |
60 | #include "client_side_request.h" | |
61 | #include "ClientRequestContext.h" | |
5c336a3b | 62 | #include "comm/Connection.h" |
27bc2077 AJ |
63 | #include "compat/inet_pton.h" |
64 | #include "fde.h" | |
65 | #include "HttpReply.h" | |
66 | #include "HttpRequest.h" | |
67 | #include "MemObject.h" | |
68 | #include "ProtoPort.h" | |
69 | #include "Store.h" | |
70 | #include "SquidTime.h" | |
71 | #include "wordlist.h" | |
3ff65596 AR |
72 | |
73 | ||
edce4d98 | 74 | #if LINGERING_CLOSE |
75 | #define comm_close comm_lingering_close | |
76 | #endif | |
77 | ||
78 | static const char *const crlf = "\r\n"; | |
79 | ||
609c620a | 80 | #if FOLLOW_X_FORWARDED_FOR |
3d674977 AJ |
81 | static void |
82 | clientFollowXForwardedForCheck(int answer, void *data); | |
609c620a | 83 | #endif /* FOLLOW_X_FORWARDED_FOR */ |
3d674977 | 84 | |
8e2745f4 | 85 | CBDATA_CLASS_INIT(ClientRequestContext); |
86 | ||
87 | void * | |
88 | ClientRequestContext::operator new (size_t size) | |
89 | { | |
90 | assert (size == sizeof(ClientRequestContext)); | |
91 | CBDATA_INIT_TYPE(ClientRequestContext); | |
92 | ClientRequestContext *result = cbdataAlloc(ClientRequestContext); | |
aa625860 | 93 | return result; |
8e2745f4 | 94 | } |
62e76326 | 95 | |
8e2745f4 | 96 | void |
97 | ClientRequestContext::operator delete (void *address) | |
98 | { | |
99 | ClientRequestContext *t = static_cast<ClientRequestContext *>(address); | |
aa625860 | 100 | cbdataFree(t); |
8e2745f4 | 101 | } |
102 | ||
edce4d98 | 103 | /* Local functions */ |
edce4d98 | 104 | /* other */ |
de31d06f | 105 | static void clientAccessCheckDoneWrapper(int, void *); |
59a1efb2 | 106 | static int clientHierarchical(ClientHttpRequest * http); |
107 | static void clientInterpretRequestHeaders(ClientHttpRequest * http); | |
de31d06f | 108 | static RH clientRedirectDoneWrapper; |
109 | static PF checkNoCacheDoneWrapper; | |
e6ccf245 | 110 | extern "C" CSR clientGetMoreData; |
111 | extern "C" CSS clientReplyStatus; | |
112 | extern "C" CSD clientReplyDetach; | |
528b2c61 | 113 | static void checkFailureRatio(err_type, hier_code); |
edce4d98 | 114 | |
8e2745f4 | 115 | ClientRequestContext::~ClientRequestContext() |
116 | { | |
de31d06f | 117 | /* |
a546b04b | 118 | * Release our "lock" on our parent, ClientHttpRequest, if we |
119 | * still have one | |
de31d06f | 120 | */ |
a546b04b | 121 | |
122 | if (http) | |
123 | cbdataReferenceDone(http); | |
62e76326 | 124 | |
5f8252d2 | 125 | debugs(85,3, HERE << this << " ClientRequestContext destructed"); |
8e2745f4 | 126 | } |
127 | ||
4e2eb5c3 | 128 | ClientRequestContext::ClientRequestContext(ClientHttpRequest *anHttp) : http(cbdataReference(anHttp)), acl_checklist (NULL), redirect_state (REDIRECT_NONE) |
edce4d98 | 129 | { |
57abaac0 | 130 | http_access_done = false; |
131 | redirect_done = false; | |
132 | no_cache_done = false; | |
133 | interpreted_req_hdrs = false; | |
0b86805b | 134 | debugs(85,3, HERE << this << " ClientRequestContext constructed"); |
edce4d98 | 135 | } |
136 | ||
528b2c61 | 137 | CBDATA_CLASS_INIT(ClientHttpRequest); |
8e2745f4 | 138 | |
528b2c61 | 139 | void * |
140 | ClientHttpRequest::operator new (size_t size) | |
141 | { | |
142 | assert (size == sizeof (ClientHttpRequest)); | |
143 | CBDATA_INIT_TYPE(ClientHttpRequest); | |
144 | ClientHttpRequest *result = cbdataAlloc(ClientHttpRequest); | |
aa625860 | 145 | return result; |
528b2c61 | 146 | } |
147 | ||
62e76326 | 148 | void |
528b2c61 | 149 | ClientHttpRequest::operator delete (void *address) |
150 | { | |
aa625860 | 151 | ClientHttpRequest *t = static_cast<ClientHttpRequest *>(address); |
152 | cbdataFree(t); | |
528b2c61 | 153 | } |
154 | ||
26ac0430 | 155 | ClientHttpRequest::ClientHttpRequest(ConnStateData * aConn) : |
a83c6ed6 | 156 | #if USE_ADAPTATION |
26ac0430 | 157 | AsyncJob("ClientHttpRequest"), |
1cf238db | 158 | #endif |
26ac0430 | 159 | loggingEntry_(NULL) |
528b2c61 | 160 | { |
1cf238db | 161 | start_time = current_time; |
a0355e95 | 162 | setConn(aConn); |
163 | dlinkAdd(this, &active, &ClientActiveRequests); | |
a83c6ed6 | 164 | #if USE_ADAPTATION |
b044675d | 165 | request_satisfaction_mode = false; |
166 | #endif | |
528b2c61 | 167 | } |
168 | ||
0655fa4d | 169 | /* |
170 | * returns true if client specified that the object must come from the cache | |
171 | * without contacting origin server | |
172 | */ | |
173 | bool | |
174 | ClientHttpRequest::onlyIfCached()const | |
175 | { | |
176 | assert(request); | |
177 | return request->cache_control && | |
178 | EBIT_TEST(request->cache_control->mask, CC_ONLY_IF_CACHED); | |
179 | } | |
180 | ||
528b2c61 | 181 | /* |
182 | * This function is designed to serve a fairly specific purpose. | |
183 | * Occasionally our vBNS-connected caches can talk to each other, but not | |
184 | * the rest of the world. Here we try to detect frequent failures which | |
185 | * make the cache unusable (e.g. DNS lookup and connect() failures). If | |
186 | * the failure:success ratio goes above 1.0 then we go into "hit only" | |
187 | * mode where we only return UDP_HIT or UDP_MISS_NOFETCH. Neighbors | |
188 | * will only fetch HITs from us if they are using the ICP protocol. We | |
189 | * stay in this mode for 5 minutes. | |
26ac0430 | 190 | * |
528b2c61 | 191 | * Duane W., Sept 16, 1996 |
192 | */ | |
193 | ||
194 | #define FAILURE_MODE_TIME 300 | |
195 | ||
196 | static void | |
197 | checkFailureRatio(err_type etype, hier_code hcode) | |
198 | { | |
199 | static double magic_factor = 100.0; | |
200 | double n_good; | |
201 | double n_bad; | |
62e76326 | 202 | |
528b2c61 | 203 | if (hcode == HIER_NONE) |
62e76326 | 204 | return; |
205 | ||
528b2c61 | 206 | n_good = magic_factor / (1.0 + request_failure_ratio); |
62e76326 | 207 | |
528b2c61 | 208 | n_bad = magic_factor - n_good; |
62e76326 | 209 | |
528b2c61 | 210 | switch (etype) { |
62e76326 | 211 | |
528b2c61 | 212 | case ERR_DNS_FAIL: |
62e76326 | 213 | |
528b2c61 | 214 | case ERR_CONNECT_FAIL: |
3712be3f | 215 | case ERR_SECURE_CONNECT_FAIL: |
62e76326 | 216 | |
528b2c61 | 217 | case ERR_READ_ERROR: |
62e76326 | 218 | n_bad++; |
219 | break; | |
220 | ||
528b2c61 | 221 | default: |
62e76326 | 222 | n_good++; |
528b2c61 | 223 | } |
62e76326 | 224 | |
528b2c61 | 225 | request_failure_ratio = n_bad / n_good; |
62e76326 | 226 | |
528b2c61 | 227 | if (hit_only_mode_until > squid_curtime) |
62e76326 | 228 | return; |
229 | ||
528b2c61 | 230 | if (request_failure_ratio < 1.0) |
62e76326 | 231 | return; |
232 | ||
bf8fe701 | 233 | debugs(33, 0, "Failure Ratio at "<< std::setw(4)<< |
234 | std::setprecision(3) << request_failure_ratio); | |
62e76326 | 235 | |
bf8fe701 | 236 | debugs(33, 0, "Going into hit-only-mode for " << |
237 | FAILURE_MODE_TIME / 60 << " minutes..."); | |
62e76326 | 238 | |
528b2c61 | 239 | hit_only_mode_until = squid_curtime + FAILURE_MODE_TIME; |
62e76326 | 240 | |
528b2c61 | 241 | request_failure_ratio = 0.8; /* reset to something less than 1.0 */ |
242 | } | |
243 | ||
244 | ClientHttpRequest::~ClientHttpRequest() | |
245 | { | |
bf8fe701 | 246 | debugs(33, 3, "httpRequestFree: " << uri); |
72bdee4c | 247 | PROF_start(httpRequestFree); |
62e76326 | 248 | |
5f8252d2 | 249 | // Even though freeResources() below may destroy the request, |
250 | // we no longer set request->body_pipe to NULL here | |
251 | // because we did not initiate that pipe (ConnStateData did) | |
62e76326 | 252 | |
528b2c61 | 253 | /* the ICP check here was erroneous |
26ac0430 | 254 | * - StoreEntry::releaseRequest was always called if entry was valid |
528b2c61 | 255 | */ |
256 | assert(logType < LOG_TYPE_MAX); | |
9ce7856a | 257 | |
528b2c61 | 258 | logRequest(); |
9ce7856a | 259 | |
0976f8db | 260 | loggingEntry(NULL); |
261 | ||
528b2c61 | 262 | if (request) |
62e76326 | 263 | checkFailureRatio(request->errType, al.hier.code); |
264 | ||
528b2c61 | 265 | freeResources(); |
62e76326 | 266 | |
a83c6ed6 AR |
267 | #if USE_ADAPTATION |
268 | announceInitiatorAbort(virginHeadSource); | |
9d4d7c5e | 269 | |
a83c6ed6 AR |
270 | if (adaptedBodySource != NULL) |
271 | stopConsumingFrom(adaptedBodySource); | |
de31d06f | 272 | #endif |
9ce7856a | 273 | |
de31d06f | 274 | if (calloutContext) |
275 | delete calloutContext; | |
276 | ||
26ac0430 AJ |
277 | if (conn_) |
278 | cbdataReferenceDone(conn_); | |
1cf238db | 279 | |
528b2c61 | 280 | /* moving to the next connection is handled by the context free */ |
281 | dlinkDelete(&active, &ClientActiveRequests); | |
9ce7856a | 282 | |
72bdee4c | 283 | PROF_stop(httpRequestFree); |
528b2c61 | 284 | } |
62e76326 | 285 | |
11992b6f AJ |
286 | /** |
287 | * Create a request and kick it off | |
288 | * | |
289 | * \retval 0 success | |
290 | * \retval -1 failure | |
291 | * | |
69660be0 | 292 | * TODO: Pass in the buffers to be used in the inital Read request, as they are |
293 | * determined by the user | |
edce4d98 | 294 | */ |
11992b6f | 295 | int |
60745f24 | 296 | clientBeginRequest(const HttpRequestMethod& method, char const *url, CSCB * streamcallback, |
0655fa4d | 297 | CSD * streamdetach, ClientStreamData streamdata, HttpHeader const *header, |
62e76326 | 298 | char *tailbuf, size_t taillen) |
edce4d98 | 299 | { |
300 | size_t url_sz; | |
a0355e95 | 301 | ClientHttpRequest *http = new ClientHttpRequest(NULL); |
190154cf | 302 | HttpRequest *request; |
528b2c61 | 303 | StoreIOBuffer tempBuffer; |
1cf238db | 304 | http->start_time = current_time; |
edce4d98 | 305 | /* this is only used to adjust the connection offset in client_side.c */ |
306 | http->req_sz = 0; | |
c8be6d7b | 307 | tempBuffer.length = taillen; |
308 | tempBuffer.data = tailbuf; | |
edce4d98 | 309 | /* client stream setup */ |
310 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, | |
0655fa4d | 311 | clientReplyStatus, new clientReplyContext(http), streamcallback, |
62e76326 | 312 | streamdetach, streamdata, tempBuffer); |
edce4d98 | 313 | /* make it visible in the 'current acctive requests list' */ |
edce4d98 | 314 | /* Set flags */ |
a46d2c0e | 315 | /* internal requests only makes sense in an |
316 | * accelerator today. TODO: accept flags ? */ | |
317 | http->flags.accel = 1; | |
edce4d98 | 318 | /* allow size for url rewriting */ |
319 | url_sz = strlen(url) + Config.appendDomainLen + 5; | |
e6ccf245 | 320 | http->uri = (char *)xcalloc(url_sz, 1); |
edce4d98 | 321 | strcpy(http->uri, url); |
322 | ||
c21ad0f5 | 323 | if ((request = HttpRequest::CreateFromUrlAndMethod(http->uri, method)) == NULL) { |
bf8fe701 | 324 | debugs(85, 5, "Invalid URL: " << http->uri); |
62e76326 | 325 | return -1; |
edce4d98 | 326 | } |
62e76326 | 327 | |
69660be0 | 328 | /* |
11992b6f | 329 | * now update the headers in request with our supplied headers. urlParse |
69660be0 | 330 | * should return a blank header set, but we use Update to be sure of |
331 | * correctness. | |
edce4d98 | 332 | */ |
333 | if (header) | |
a9925b40 | 334 | request->header.update(header, NULL); |
62e76326 | 335 | |
edce4d98 | 336 | http->log_uri = xstrdup(urlCanonicalClean(request)); |
62e76326 | 337 | |
edce4d98 | 338 | /* http struct now ready */ |
339 | ||
69660be0 | 340 | /* |
341 | * build new header list *? TODO | |
edce4d98 | 342 | */ |
343 | request->flags.accelerated = http->flags.accel; | |
62e76326 | 344 | |
a46d2c0e | 345 | request->flags.internalclient = 1; |
346 | ||
347 | /* this is an internally created | |
348 | * request, not subject to acceleration | |
349 | * target overrides */ | |
69660be0 | 350 | /* |
351 | * FIXME? Do we want to detect and handle internal requests of internal | |
352 | * objects ? | |
353 | */ | |
edce4d98 | 354 | |
355 | /* Internally created requests cannot have bodies today */ | |
356 | request->content_length = 0; | |
62e76326 | 357 | |
cc192b50 | 358 | request->client_addr.SetNoAddr(); |
62e76326 | 359 | |
3d674977 AJ |
360 | #if FOLLOW_X_FORWARDED_FOR |
361 | request->indirect_client_addr.SetNoAddr(); | |
362 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
26ac0430 | 363 | |
cc192b50 | 364 | request->my_addr.SetNoAddr(); /* undefined for internal requests */ |
62e76326 | 365 | |
cc192b50 | 366 | request->my_addr.SetPort(0); |
62e76326 | 367 | |
3872be7c AJ |
368 | /* Our version is HTTP/1.1 */ |
369 | HttpVersion http_ver(1,1); | |
edce4d98 | 370 | request->http_ver = http_ver; |
62e76326 | 371 | |
6dd9f4bd | 372 | http->request = HTTPMSGLOCK(request); |
edce4d98 | 373 | |
374 | /* optional - skip the access check ? */ | |
de31d06f | 375 | http->calloutContext = new ClientRequestContext(http); |
376 | ||
57abaac0 | 377 | http->calloutContext->http_access_done = false; |
de31d06f | 378 | |
57abaac0 | 379 | http->calloutContext->redirect_done = true; |
de31d06f | 380 | |
57abaac0 | 381 | http->calloutContext->no_cache_done = true; |
de31d06f | 382 | |
383 | http->doCallouts(); | |
62e76326 | 384 | |
edce4d98 | 385 | return 0; |
386 | } | |
387 | ||
de31d06f | 388 | bool |
389 | ClientRequestContext::httpStateIsValid() | |
390 | { | |
391 | ClientHttpRequest *http_ = http; | |
392 | ||
393 | if (cbdataReferenceValid(http_)) | |
394 | return true; | |
395 | ||
396 | http = NULL; | |
397 | ||
398 | cbdataReferenceDone(http_); | |
399 | ||
400 | return false; | |
401 | } | |
402 | ||
3d674977 AJ |
403 | #if FOLLOW_X_FORWARDED_FOR |
404 | /** | |
a9044668 | 405 | * clientFollowXForwardedForCheck() checks the content of X-Forwarded-For: |
3d674977 AJ |
406 | * against the followXFF ACL, or cleans up and passes control to |
407 | * clientAccessCheck(). | |
d096ace1 AJ |
408 | * |
409 | * The trust model here is a little ambiguous. So to clarify the logic: | |
410 | * - we may always use the direct client address as the client IP. | |
a9044668 | 411 | * - these trust tests merey tell whether we trust given IP enough to believe the |
d096ace1 AJ |
412 | * IP string which it appended to the X-Forwarded-For: header. |
413 | * - if at any point we don't trust what an IP adds we stop looking. | |
414 | * - at that point the current contents of indirect_client_addr are the value set | |
415 | * by the last previously trusted IP. | |
416 | * ++ indirect_client_addr contains the remote direct client from the trusted peers viewpoint. | |
3d674977 | 417 | */ |
3d674977 AJ |
418 | static void |
419 | clientFollowXForwardedForCheck(int answer, void *data) | |
420 | { | |
421 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; | |
3d674977 AJ |
422 | |
423 | if (!calloutContext->httpStateIsValid()) | |
424 | return; | |
425 | ||
d096ace1 AJ |
426 | ClientHttpRequest *http = calloutContext->http; |
427 | HttpRequest *request = http->request; | |
428 | ||
3d674977 AJ |
429 | /* |
430 | * answer should be be ACCESS_ALLOWED or ACCESS_DENIED if we are | |
431 | * called as a result of ACL checks, or -1 if we are called when | |
432 | * there's nothing left to do. | |
433 | */ | |
434 | if (answer == ACCESS_ALLOWED && | |
26ac0430 | 435 | request->x_forwarded_for_iterator.size () != 0) { |
d096ace1 | 436 | |
3d674977 | 437 | /* |
d096ace1 AJ |
438 | * Remove the last comma-delimited element from the |
439 | * x_forwarded_for_iterator and use it to repeat the cycle. | |
440 | */ | |
3d674977 AJ |
441 | const char *p; |
442 | const char *asciiaddr; | |
443 | int l; | |
b7ac5457 | 444 | Ip::Address addr; |
bb790702 | 445 | p = request->x_forwarded_for_iterator.termedBuf(); |
3d674977 AJ |
446 | l = request->x_forwarded_for_iterator.size(); |
447 | ||
448 | /* | |
449 | * XXX x_forwarded_for_iterator should really be a list of | |
450 | * IP addresses, but it's a String instead. We have to | |
451 | * walk backwards through the String, biting off the last | |
452 | * comma-delimited part each time. As long as the data is in | |
453 | * a String, we should probably implement and use a variant of | |
454 | * strListGetItem() that walks backwards instead of forwards | |
455 | * through a comma-separated list. But we don't even do that; | |
456 | * we just do the work in-line here. | |
457 | */ | |
458 | /* skip trailing space and commas */ | |
459 | while (l > 0 && (p[l-1] == ',' || xisspace(p[l-1]))) | |
460 | l--; | |
461 | request->x_forwarded_for_iterator.cut(l); | |
462 | /* look for start of last item in list */ | |
463 | while (l > 0 && ! (p[l-1] == ',' || xisspace(p[l-1]))) | |
464 | l--; | |
465 | asciiaddr = p+l; | |
fafd0efa | 466 | if ((addr = asciiaddr)) { |
3d674977 AJ |
467 | request->indirect_client_addr = addr; |
468 | request->x_forwarded_for_iterator.cut(l); | |
d096ace1 AJ |
469 | calloutContext->acl_checklist = clientAclChecklistCreate(Config.accessList.followXFF, http); |
470 | if (!Config.onoff.acl_uses_indirect_client) { | |
471 | /* override the default src_addr tested if we have to go deeper than one level into XFF */ | |
472 | Filled(calloutContext->acl_checklist)->src_addr = request->indirect_client_addr; | |
3d674977 | 473 | } |
d096ace1 | 474 | calloutContext->acl_checklist->nonBlockingCheck(clientFollowXForwardedForCheck, data); |
3d674977 AJ |
475 | return; |
476 | } | |
477 | } /*if (answer == ACCESS_ALLOWED && | |
478 | request->x_forwarded_for_iterator.size () != 0)*/ | |
479 | ||
480 | /* clean up, and pass control to clientAccessCheck */ | |
26ac0430 | 481 | if (Config.onoff.log_uses_indirect_client) { |
3d674977 AJ |
482 | /* |
483 | * Ensure that the access log shows the indirect client | |
484 | * instead of the direct client. | |
485 | */ | |
486 | ConnStateData *conn = http->getConn(); | |
487 | conn->log_addr = request->indirect_client_addr; | |
488 | } | |
489 | request->x_forwarded_for_iterator.clean(); | |
490 | request->flags.done_follow_x_forwarded_for = 1; | |
491 | ||
d096ace1 AJ |
492 | if (answer != ACCESS_ALLOWED && answer != ACCESS_DENIED) { |
493 | debugs(28, DBG_CRITICAL, "ERROR: Processing X-Forwarded-For. Stopping at IP address: " << request->indirect_client_addr ); | |
493d3865 AJ |
494 | } |
495 | ||
496 | /* process actual access ACL as normal. */ | |
497 | calloutContext->clientAccessCheck(); | |
3d674977 AJ |
498 | } |
499 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
500 | ||
edce4d98 | 501 | /* This is the entry point for external users of the client_side routines */ |
502 | void | |
de31d06f | 503 | ClientRequestContext::clientAccessCheck() |
edce4d98 | 504 | { |
3d674977 AJ |
505 | #if FOLLOW_X_FORWARDED_FOR |
506 | if (!http->request->flags.done_follow_x_forwarded_for && | |
26ac0430 AJ |
507 | Config.accessList.followXFF && |
508 | http->request->header.has(HDR_X_FORWARDED_FOR)) { | |
d096ace1 AJ |
509 | |
510 | /* we always trust the direct client address for actual use */ | |
511 | http->request->indirect_client_addr = http->request->client_addr; | |
fafd0efa | 512 | http->request->indirect_client_addr.SetPort(0); |
d096ace1 AJ |
513 | |
514 | /* setup the XFF iterator for processing */ | |
515 | http->request->x_forwarded_for_iterator = http->request->header.getList(HDR_X_FORWARDED_FOR); | |
516 | ||
517 | /* begin by checking to see if we trust direct client enough to walk XFF */ | |
518 | acl_checklist = clientAclChecklistCreate(Config.accessList.followXFF, http); | |
519 | acl_checklist->nonBlockingCheck(clientFollowXForwardedForCheck, this); | |
3d674977 AJ |
520 | return; |
521 | } | |
522 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
493d3865 | 523 | |
b50e327b AJ |
524 | if (Config.accessList.http) { |
525 | acl_checklist = clientAclChecklistCreate(Config.accessList.http, http); | |
526 | acl_checklist->nonBlockingCheck(clientAccessCheckDoneWrapper, this); | |
527 | } else { | |
528 | debugs(0, DBG_CRITICAL, "No http_access configuration found. This will block ALL traffic"); | |
529 | clientAccessCheckDone(ACCESS_DENIED); | |
530 | } | |
edce4d98 | 531 | } |
532 | ||
533493da AJ |
533 | /** |
534 | * Identical in operation to clientAccessCheck() but performed later using different configured ACL list. | |
535 | * The default here is to allow all. Since the earlier http_access should do a default deny all. | |
536 | * This check is just for a last-minute denial based on adapted request headers. | |
537 | */ | |
538 | void | |
539 | ClientRequestContext::clientAccessCheck2() | |
540 | { | |
541 | if (Config.accessList.adapted_http) { | |
542 | acl_checklist = clientAclChecklistCreate(Config.accessList.adapted_http, http); | |
543 | acl_checklist->nonBlockingCheck(clientAccessCheckDoneWrapper, this); | |
544 | } else { | |
327e2131 | 545 | debugs(85, 2, HERE << "No adapted_http_access configuration. default: ALLOW"); |
533493da AJ |
546 | clientAccessCheckDone(ACCESS_ALLOWED); |
547 | } | |
548 | } | |
549 | ||
edce4d98 | 550 | void |
de31d06f | 551 | clientAccessCheckDoneWrapper(int answer, void *data) |
edce4d98 | 552 | { |
de31d06f | 553 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; |
fbade053 | 554 | |
de31d06f | 555 | if (!calloutContext->httpStateIsValid()) |
62e76326 | 556 | return; |
62e76326 | 557 | |
de31d06f | 558 | calloutContext->clientAccessCheckDone(answer); |
559 | } | |
560 | ||
561 | void | |
562 | ClientRequestContext::clientAccessCheckDone(int answer) | |
563 | { | |
564 | acl_checklist = NULL; | |
edce4d98 | 565 | err_type page_id; |
566 | http_status status; | |
26ac0430 AJ |
567 | debugs(85, 2, "The request " << |
568 | RequestMethodStr(http->request->method) << " " << | |
569 | http->uri << " is " << | |
570 | (answer == ACCESS_ALLOWED ? "ALLOWED" : "DENIED") << | |
571 | ", because it matched '" << | |
572 | (AclMatchedName ? AclMatchedName : "NO ACL's") << "'" ); | |
f5691f9c | 573 | char const *proxy_auth_msg = "<null>"; |
574 | ||
94a396a3 | 575 | if (http->getConn() != NULL && http->getConn()->auth_user_request != NULL) |
f5691f9c | 576 | proxy_auth_msg = http->getConn()->auth_user_request->denyMessage("<null>"); |
577 | else if (http->request->auth_user_request != NULL) | |
578 | proxy_auth_msg = http->request->auth_user_request->denyMessage("<null>"); | |
62e76326 | 579 | |
de31d06f | 580 | if (answer != ACCESS_ALLOWED) { |
62e76326 | 581 | /* Send an error */ |
9ce7856a | 582 | int require_auth = (answer == ACCESS_REQ_PROXY_AUTH || aclIsProxyAuth(AclMatchedName)); |
bf8fe701 | 583 | debugs(85, 5, "Access Denied: " << http->uri); |
584 | debugs(85, 5, "AclMatchedName = " << (AclMatchedName ? AclMatchedName : "<null>")); | |
9ce7856a | 585 | |
586 | if (require_auth) | |
bf8fe701 | 587 | debugs(33, 5, "Proxy Auth Message = " << (proxy_auth_msg ? proxy_auth_msg : "<null>")); |
9ce7856a | 588 | |
62e76326 | 589 | /* |
590 | * NOTE: get page_id here, based on AclMatchedName because if | |
591 | * USE_DELAY_POOLS is enabled, then AclMatchedName gets clobbered in | |
592 | * the clientCreateStoreEntry() call just below. Pedro Ribeiro | |
593 | * <pribeiro@isel.pt> | |
594 | */ | |
9ce7856a | 595 | page_id = aclGetDenyInfoPage(&Config.denyInfoList, AclMatchedName, answer != ACCESS_REQ_PROXY_AUTH); |
596 | ||
62e76326 | 597 | http->logType = LOG_TCP_DENIED; |
598 | ||
9ce7856a | 599 | if (require_auth) { |
62e76326 | 600 | if (!http->flags.accel) { |
601 | /* Proxy authorisation needed */ | |
602 | status = HTTP_PROXY_AUTHENTICATION_REQUIRED; | |
603 | } else { | |
604 | /* WWW authorisation needed */ | |
605 | status = HTTP_UNAUTHORIZED; | |
606 | } | |
607 | ||
608 | if (page_id == ERR_NONE) | |
609 | page_id = ERR_CACHE_ACCESS_DENIED; | |
610 | } else { | |
611 | status = HTTP_FORBIDDEN; | |
612 | ||
613 | if (page_id == ERR_NONE) | |
614 | page_id = ERR_ACCESS_DENIED; | |
615 | } | |
616 | ||
de31d06f | 617 | clientStreamNode *node = (clientStreamNode *)http->client_stream.tail->prev->data; |
0655fa4d | 618 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
619 | assert (repContext); | |
b7ac5457 | 620 | Ip::Address tmpnoaddr; |
26ac0430 | 621 | tmpnoaddr.SetNoAddr(); |
0655fa4d | 622 | repContext->setReplyToError(page_id, status, |
623 | http->request->method, NULL, | |
cc192b50 | 624 | http->getConn() != NULL ? http->getConn()->peer : tmpnoaddr, |
625 | http->request, | |
626 | NULL, | |
a33a428a | 627 | http->getConn() != NULL && http->getConn()->auth_user_request != NULL ? |
cc192b50 | 628 | http->getConn()->auth_user_request : http->request->auth_user_request); |
629 | ||
62e76326 | 630 | node = (clientStreamNode *)http->client_stream.tail->data; |
631 | clientStreamRead(node, http, node->readBuffer); | |
a546b04b | 632 | return; |
edce4d98 | 633 | } |
de31d06f | 634 | |
635 | /* ACCESS_ALLOWED continues here ... */ | |
636 | safe_free(http->uri); | |
637 | ||
638 | http->uri = xstrdup(urlCanonical(http->request)); | |
639 | ||
640 | http->doCallouts(); | |
641 | } | |
642 | ||
a83c6ed6 | 643 | #if USE_ADAPTATION |
de31d06f | 644 | static void |
a22e6cd3 | 645 | adaptationAclCheckDoneWrapper(Adaptation::ServiceGroupPointer g, void *data) |
de31d06f | 646 | { |
647 | ClientRequestContext *calloutContext = (ClientRequestContext *)data; | |
648 | ||
649 | if (!calloutContext->httpStateIsValid()) | |
650 | return; | |
651 | ||
a22e6cd3 | 652 | calloutContext->adaptationAclCheckDone(g); |
de31d06f | 653 | } |
654 | ||
655 | void | |
a22e6cd3 | 656 | ClientRequestContext::adaptationAclCheckDone(Adaptation::ServiceGroupPointer g) |
de31d06f | 657 | { |
a83c6ed6 | 658 | debugs(93,3,HERE << this << " adaptationAclCheckDone called"); |
6ec67de9 | 659 | assert(http); |
660 | ||
e1381638 | 661 | #if ICAP_CLIENT |
3ff65596 | 662 | Adaptation::Icap::History::Pointer ih = http->request->icapHistory(); |
e1381638 AJ |
663 | if (ih != NULL) { |
664 | if (http->getConn() != NULL) { | |
3ff65596 | 665 | ih->rfc931 = http->getConn()->rfc931; |
e1381638 | 666 | #if USE_SSL |
5c336a3b AJ |
667 | assert(http->getConn()->clientConn != NULL); |
668 | ih->ssluser = sslGetUserEmail(fd_table[http->getConn()->clientConn->fd].ssl); | |
e1381638 | 669 | #endif |
3ff65596 AR |
670 | } |
671 | ih->log_uri = http->log_uri; | |
672 | ih->req_sz = http->req_sz; | |
673 | } | |
674 | #endif | |
675 | ||
a22e6cd3 AR |
676 | if (!g) { |
677 | debugs(85,3, HERE << "no adaptation needed"); | |
5f8252d2 | 678 | http->doCallouts(); |
679 | return; | |
680 | } | |
de31d06f | 681 | |
a22e6cd3 | 682 | http->startAdaptation(g); |
edce4d98 | 683 | } |
684 | ||
de31d06f | 685 | #endif |
686 | ||
14cc8559 | 687 | static void |
688 | clientRedirectAccessCheckDone(int answer, void *data) | |
689 | { | |
690 | ClientRequestContext *context = (ClientRequestContext *)data; | |
59a1efb2 | 691 | ClientHttpRequest *http = context->http; |
14cc8559 | 692 | context->acl_checklist = NULL; |
693 | ||
694 | if (answer == ACCESS_ALLOWED) | |
de31d06f | 695 | redirectStart(http, clientRedirectDoneWrapper, context); |
14cc8559 | 696 | else |
de31d06f | 697 | context->clientRedirectDone(NULL); |
14cc8559 | 698 | } |
699 | ||
de31d06f | 700 | void |
701 | ClientRequestContext::clientRedirectStart() | |
14cc8559 | 702 | { |
bf8fe701 | 703 | debugs(33, 5, "clientRedirectStart: '" << http->uri << "'"); |
14cc8559 | 704 | |
14cc8559 | 705 | if (Config.accessList.redirector) { |
de31d06f | 706 | acl_checklist = clientAclChecklistCreate(Config.accessList.redirector, http); |
707 | acl_checklist->nonBlockingCheck(clientRedirectAccessCheckDone, this); | |
14cc8559 | 708 | } else |
de31d06f | 709 | redirectStart(http, clientRedirectDoneWrapper, this); |
14cc8559 | 710 | } |
711 | ||
edce4d98 | 712 | static int |
59a1efb2 | 713 | clientHierarchical(ClientHttpRequest * http) |
edce4d98 | 714 | { |
715 | const char *url = http->uri; | |
190154cf | 716 | HttpRequest *request = http->request; |
60745f24 | 717 | HttpRequestMethod method = request->method; |
edce4d98 | 718 | const wordlist *p = NULL; |
719 | ||
69660be0 | 720 | /* |
721 | * IMS needs a private key, so we can use the hierarchy for IMS only if our | |
722 | * neighbors support private keys | |
723 | */ | |
62e76326 | 724 | |
edce4d98 | 725 | if (request->flags.ims && !neighbors_do_private_keys) |
62e76326 | 726 | return 0; |
727 | ||
69660be0 | 728 | /* |
729 | * This is incorrect: authenticating requests can be sent via a hierarchy | |
06b97e72 | 730 | * (they can even be cached if the correct headers are set on the reply) |
edce4d98 | 731 | */ |
732 | if (request->flags.auth) | |
62e76326 | 733 | return 0; |
734 | ||
edce4d98 | 735 | if (method == METHOD_TRACE) |
62e76326 | 736 | return 1; |
737 | ||
edce4d98 | 738 | if (method != METHOD_GET) |
62e76326 | 739 | return 0; |
740 | ||
edce4d98 | 741 | /* scan hierarchy_stoplist */ |
742 | for (p = Config.hierarchy_stoplist; p; p = p->next) | |
62e76326 | 743 | if (strstr(url, p->key)) |
744 | return 0; | |
745 | ||
edce4d98 | 746 | if (request->flags.loopdetect) |
62e76326 | 747 | return 0; |
748 | ||
edce4d98 | 749 | if (request->protocol == PROTO_HTTP) |
62e76326 | 750 | return httpCachable(method); |
751 | ||
edce4d98 | 752 | if (request->protocol == PROTO_GOPHER) |
62e76326 | 753 | return gopherCachable(request); |
754 | ||
edce4d98 | 755 | if (request->protocol == PROTO_CACHEOBJ) |
62e76326 | 756 | return 0; |
757 | ||
edce4d98 | 758 | return 1; |
759 | } | |
760 | ||
761 | ||
46a1f562 HN |
762 | static void |
763 | clientCheckPinning(ClientHttpRequest * http) | |
764 | { | |
765 | HttpRequest *request = http->request; | |
766 | HttpHeader *req_hdr = &request->header; | |
767 | ConnStateData *http_conn = http->getConn(); | |
768 | ||
769 | /* Internal requests such as those from ESI includes may be without | |
770 | * a client connection | |
771 | */ | |
772 | if (!http_conn) | |
f54f527e | 773 | return; |
46a1f562 HN |
774 | |
775 | request->flags.connection_auth_disabled = http_conn->port->connection_auth_disabled; | |
776 | if (!request->flags.connection_auth_disabled) { | |
777 | if (http_conn->pinning.fd != -1) { | |
778 | if (http_conn->pinning.auth) { | |
779 | request->flags.connection_auth = 1; | |
780 | request->flags.auth = 1; | |
781 | } else { | |
782 | request->flags.connection_proxy_auth = 1; | |
783 | } | |
784 | request->setPinnedConnection(http_conn); | |
785 | } | |
786 | } | |
787 | ||
788 | /* check if connection auth is used, and flag as candidate for pinning | |
789 | * in such case. | |
790 | * Note: we may need to set flags.connection_auth even if the connection | |
791 | * is already pinned if it was pinned earlier due to proxy auth | |
792 | */ | |
793 | if (!request->flags.connection_auth) { | |
794 | if (req_hdr->has(HDR_AUTHORIZATION) || req_hdr->has(HDR_PROXY_AUTHORIZATION)) { | |
795 | HttpHeaderPos pos = HttpHeaderInitPos; | |
796 | HttpHeaderEntry *e; | |
797 | int may_pin = 0; | |
798 | while ((e = req_hdr->getEntry(&pos))) { | |
799 | if (e->id == HDR_AUTHORIZATION || e->id == HDR_PROXY_AUTHORIZATION) { | |
800 | const char *value = e->value.rawBuf(); | |
801 | if (strncasecmp(value, "NTLM ", 5) == 0 | |
802 | || | |
803 | strncasecmp(value, "Negotiate ", 10) == 0 | |
804 | || | |
805 | strncasecmp(value, "Kerberos ", 9) == 0) { | |
806 | if (e->id == HDR_AUTHORIZATION) { | |
807 | request->flags.connection_auth = 1; | |
808 | may_pin = 1; | |
809 | } else { | |
810 | request->flags.connection_proxy_auth = 1; | |
811 | may_pin = 1; | |
812 | } | |
813 | } | |
814 | } | |
815 | } | |
816 | if (may_pin && !request->pinnedConnection()) { | |
817 | request->setPinnedConnection(http->getConn()); | |
818 | } | |
819 | } | |
820 | } | |
821 | } | |
822 | ||
edce4d98 | 823 | static void |
59a1efb2 | 824 | clientInterpretRequestHeaders(ClientHttpRequest * http) |
edce4d98 | 825 | { |
190154cf | 826 | HttpRequest *request = http->request; |
0ef77270 | 827 | HttpHeader *req_hdr = &request->header; |
edce4d98 | 828 | int no_cache = 0; |
edce4d98 | 829 | const char *str; |
62e76326 | 830 | |
edce4d98 | 831 | request->imslen = -1; |
a9925b40 | 832 | request->ims = req_hdr->getTime(HDR_IF_MODIFIED_SINCE); |
62e76326 | 833 | |
edce4d98 | 834 | if (request->ims > 0) |
62e76326 | 835 | request->flags.ims = 1; |
836 | ||
432bc83c HN |
837 | if (!request->flags.ignore_cc) { |
838 | if (req_hdr->has(HDR_PRAGMA)) { | |
839 | String s = req_hdr->getList(HDR_PRAGMA); | |
62e76326 | 840 | |
432bc83c HN |
841 | if (strListIsMember(&s, "no-cache", ',')) |
842 | no_cache++; | |
30abd221 | 843 | |
432bc83c HN |
844 | s.clean(); |
845 | } | |
62e76326 | 846 | |
432bc83c HN |
847 | if (request->cache_control) |
848 | if (EBIT_TEST(request->cache_control->mask, CC_NO_CACHE)) | |
849 | no_cache++; | |
62e76326 | 850 | |
432bc83c HN |
851 | /* |
852 | * Work around for supporting the Reload button in IE browsers when Squid | |
853 | * is used as an accelerator or transparent proxy, by turning accelerated | |
854 | * IMS request to no-cache requests. Now knows about IE 5.5 fix (is | |
855 | * actually only fixed in SP1, but we can't tell whether we are talking to | |
856 | * SP1 or not so all 5.5 versions are treated 'normally'). | |
857 | */ | |
858 | if (Config.onoff.ie_refresh) { | |
859 | if (http->flags.accel && request->flags.ims) { | |
860 | if ((str = req_hdr->getStr(HDR_USER_AGENT))) { | |
861 | if (strstr(str, "MSIE 5.01") != NULL) | |
862 | no_cache++; | |
863 | else if (strstr(str, "MSIE 5.0") != NULL) | |
864 | no_cache++; | |
865 | else if (strstr(str, "MSIE 4.") != NULL) | |
866 | no_cache++; | |
867 | else if (strstr(str, "MSIE 3.") != NULL) | |
868 | no_cache++; | |
869 | } | |
62e76326 | 870 | } |
871 | } | |
edce4d98 | 872 | } |
914b89a2 | 873 | |
874 | if (request->method == METHOD_OTHER) { | |
26ac0430 | 875 | no_cache++; |
60745f24 | 876 | } |
62e76326 | 877 | |
edce4d98 | 878 | if (no_cache) { |
626096be | 879 | #if USE_HTTP_VIOLATIONS |
62e76326 | 880 | |
881 | if (Config.onoff.reload_into_ims) | |
882 | request->flags.nocache_hack = 1; | |
883 | else if (refresh_nocache_hack) | |
884 | request->flags.nocache_hack = 1; | |
885 | else | |
edce4d98 | 886 | #endif |
62e76326 | 887 | |
888 | request->flags.nocache = 1; | |
edce4d98 | 889 | } |
62e76326 | 890 | |
0ef77270 | 891 | /* ignore range header in non-GETs or non-HEADs */ |
892 | if (request->method == METHOD_GET || request->method == METHOD_HEAD) { | |
56713d9a AR |
893 | // XXX: initialize if we got here without HttpRequest::parseHeader() |
894 | if (!request->range) | |
895 | request->range = req_hdr->getRange(); | |
62e76326 | 896 | |
897 | if (request->range) { | |
898 | request->flags.range = 1; | |
899 | clientStreamNode *node = (clientStreamNode *)http->client_stream.tail->data; | |
900 | /* XXX: This is suboptimal. We should give the stream the range set, | |
901 | * and thereby let the top of the stream set the offset when the | |
26ac0430 | 902 | * size becomes known. As it is, we will end up requesting from 0 |
62e76326 | 903 | * for evey -X range specification. |
904 | * RBC - this may be somewhat wrong. We should probably set the range | |
905 | * iter up at this point. | |
906 | */ | |
907 | node->readBuffer.offset = request->range->lowestOffset(0); | |
908 | http->range_iter.pos = request->range->begin(); | |
909 | http->range_iter.valid = true; | |
910 | } | |
edce4d98 | 911 | } |
62e76326 | 912 | |
0ef77270 | 913 | /* Only HEAD and GET requests permit a Range or Request-Range header. |
914 | * If these headers appear on any other type of request, delete them now. | |
915 | */ | |
916 | else { | |
917 | req_hdr->delById(HDR_RANGE); | |
918 | req_hdr->delById(HDR_REQUEST_RANGE); | |
56713d9a | 919 | delete request->range; |
0ef77270 | 920 | request->range = NULL; |
921 | } | |
922 | ||
a9925b40 | 923 | if (req_hdr->has(HDR_AUTHORIZATION)) |
62e76326 | 924 | request->flags.auth = 1; |
925 | ||
46a1f562 | 926 | clientCheckPinning(http); |
d67acb4e | 927 | |
edce4d98 | 928 | if (request->login[0] != '\0') |
62e76326 | 929 | request->flags.auth = 1; |
930 | ||
a9925b40 | 931 | if (req_hdr->has(HDR_VIA)) { |
30abd221 | 932 | String s = req_hdr->getList(HDR_VIA); |
62e76326 | 933 | /* |
934 | * ThisCache cannot be a member of Via header, "1.0 ThisCache" can. | |
935 | * Note ThisCache2 has a space prepended to the hostname so we don't | |
936 | * accidentally match super-domains. | |
937 | */ | |
938 | ||
939 | if (strListIsSubstr(&s, ThisCache2, ',')) { | |
940 | debugObj(33, 1, "WARNING: Forwarding loop detected for:\n", | |
941 | request, (ObjPackMethod) & httpRequestPack); | |
942 | request->flags.loopdetect = 1; | |
943 | } | |
944 | ||
21f6708d | 945 | #if USE_FORW_VIA_DB |
bb790702 | 946 | fvdbCountVia(s.termedBuf()); |
62e76326 | 947 | |
edce4d98 | 948 | #endif |
62e76326 | 949 | |
30abd221 | 950 | s.clean(); |
edce4d98 | 951 | } |
62e76326 | 952 | |
26ac0430 AJ |
953 | /** |
954 | \todo --enable-useragent-log and --enable-referer-log. We should | |
955 | probably drop those two as the custom log formats accomplish pretty much the same thing.. | |
956 | */ | |
edce4d98 | 957 | #if USE_USERAGENT_LOG |
a9925b40 | 958 | if ((str = req_hdr->getStr(HDR_USER_AGENT))) |
b4306cba | 959 | logUserAgent(fqdnFromAddr(http->getConn()->log_addr), str); |
62e76326 | 960 | |
edce4d98 | 961 | #endif |
962 | #if USE_REFERER_LOG | |
62e76326 | 963 | |
a9925b40 | 964 | if ((str = req_hdr->getStr(HDR_REFERER))) |
b4306cba | 965 | logReferer(fqdnFromAddr(http->getConn()->log_addr), str, http->log_uri); |
62e76326 | 966 | |
edce4d98 | 967 | #endif |
21f6708d | 968 | #if USE_FORW_VIA_DB |
62e76326 | 969 | |
a9925b40 | 970 | if (req_hdr->has(HDR_X_FORWARDED_FOR)) { |
30abd221 | 971 | String s = req_hdr->getList(HDR_X_FORWARDED_FOR); |
bb790702 | 972 | fvdbCountForw(s.termedBuf()); |
30abd221 | 973 | s.clean(); |
edce4d98 | 974 | } |
62e76326 | 975 | |
edce4d98 | 976 | #endif |
62e76326 | 977 | |
610ee341 | 978 | request->flags.cachable = http->request->cacheable(); |
62e76326 | 979 | |
edce4d98 | 980 | if (clientHierarchical(http)) |
62e76326 | 981 | request->flags.hierarchical = 1; |
982 | ||
bf8fe701 | 983 | debugs(85, 5, "clientInterpretRequestHeaders: REQ_NOCACHE = " << |
984 | (request->flags.nocache ? "SET" : "NOT SET")); | |
985 | debugs(85, 5, "clientInterpretRequestHeaders: REQ_CACHABLE = " << | |
986 | (request->flags.cachable ? "SET" : "NOT SET")); | |
987 | debugs(85, 5, "clientInterpretRequestHeaders: REQ_HIERARCHICAL = " << | |
988 | (request->flags.hierarchical ? "SET" : "NOT SET")); | |
62e76326 | 989 | |
edce4d98 | 990 | } |
991 | ||
992 | void | |
de31d06f | 993 | clientRedirectDoneWrapper(void *data, char *result) |
edce4d98 | 994 | { |
de31d06f | 995 | ClientRequestContext *calloutContext = (ClientRequestContext *)data; |
db02222f | 996 | |
de31d06f | 997 | if (!calloutContext->httpStateIsValid()) |
62e76326 | 998 | return; |
62e76326 | 999 | |
de31d06f | 1000 | calloutContext->clientRedirectDone(result); |
1001 | } | |
1002 | ||
1003 | void | |
1004 | ClientRequestContext::clientRedirectDone(char *result) | |
1005 | { | |
190154cf | 1006 | HttpRequest *new_request = NULL; |
1007 | HttpRequest *old_request = http->request; | |
bf8fe701 | 1008 | debugs(85, 5, "clientRedirectDone: '" << http->uri << "' result=" << (result ? result : "NULL")); |
de31d06f | 1009 | assert(redirect_state == REDIRECT_PENDING); |
1010 | redirect_state = REDIRECT_DONE; | |
62e76326 | 1011 | |
edce4d98 | 1012 | if (result) { |
62e76326 | 1013 | http_status status = (http_status) atoi(result); |
1014 | ||
1015 | if (status == HTTP_MOVED_PERMANENTLY | |
1016 | || status == HTTP_MOVED_TEMPORARILY | |
1017 | || status == HTTP_SEE_OTHER | |
1018 | || status == HTTP_TEMPORARY_REDIRECT) { | |
1019 | char *t = result; | |
1020 | ||
1021 | if ((t = strchr(result, ':')) != NULL) { | |
1022 | http->redirect.status = status; | |
1023 | http->redirect.location = xstrdup(t + 1); | |
1024 | } else { | |
bf8fe701 | 1025 | debugs(85, 1, "clientRedirectDone: bad input: " << result); |
62e76326 | 1026 | } |
2baf58c3 | 1027 | } else if (strcmp(result, http->uri)) |
c21ad0f5 | 1028 | new_request = HttpRequest::CreateFromUrlAndMethod(result, old_request->method); |
edce4d98 | 1029 | } |
62e76326 | 1030 | |
edce4d98 | 1031 | if (new_request) { |
62e76326 | 1032 | safe_free(http->uri); |
1033 | http->uri = xstrdup(urlCanonical(new_request)); | |
1034 | new_request->http_ver = old_request->http_ver; | |
a9925b40 | 1035 | new_request->header.append(&old_request->header); |
62e76326 | 1036 | new_request->client_addr = old_request->client_addr; |
3d674977 AJ |
1037 | #if FOLLOW_X_FORWARDED_FOR |
1038 | new_request->indirect_client_addr = old_request->indirect_client_addr; | |
1039 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
62e76326 | 1040 | new_request->my_addr = old_request->my_addr; |
62e76326 | 1041 | new_request->flags = old_request->flags; |
3c1f01bc | 1042 | new_request->flags.redirected = 1; |
a33a428a | 1043 | new_request->auth_user_request = old_request->auth_user_request; |
62e76326 | 1044 | |
5f8252d2 | 1045 | if (old_request->body_pipe != NULL) { |
1046 | new_request->body_pipe = old_request->body_pipe; | |
1047 | old_request->body_pipe = NULL; | |
1048 | debugs(0,0,HERE << "redirecting body_pipe " << new_request->body_pipe << " from request " << old_request << " to " << new_request); | |
62e76326 | 1049 | } |
1050 | ||
1051 | new_request->content_length = old_request->content_length; | |
abb929f0 | 1052 | new_request->extacl_user = old_request->extacl_user; |
1053 | new_request->extacl_passwd = old_request->extacl_passwd; | |
62e76326 | 1054 | new_request->flags.proxy_keepalive = old_request->flags.proxy_keepalive; |
6dd9f4bd | 1055 | HTTPMSGUNLOCK(old_request); |
1056 | http->request = HTTPMSGLOCK(new_request); | |
edce4d98 | 1057 | } |
62e76326 | 1058 | |
edce4d98 | 1059 | /* FIXME PIPELINE: This is innacurate during pipelining */ |
62e76326 | 1060 | |
5c336a3b AJ |
1061 | if (http->getConn() != NULL && Comm::IsConnOpen(http->getConn()->clientConn)) |
1062 | fd_note(http->getConn()->clientConn->fd, http->uri); | |
62e76326 | 1063 | |
c8be6d7b | 1064 | assert(http->uri); |
62e76326 | 1065 | |
de31d06f | 1066 | http->doCallouts(); |
edce4d98 | 1067 | } |
1068 | ||
b50e327b AJ |
1069 | /** Test cache allow/deny configuration |
1070 | * Sets flags.cachable=1 if caching is not denied. | |
1071 | */ | |
edce4d98 | 1072 | void |
8e2745f4 | 1073 | ClientRequestContext::checkNoCache() |
edce4d98 | 1074 | { |
b50e327b AJ |
1075 | if (Config.accessList.noCache) { |
1076 | acl_checklist = clientAclChecklistCreate(Config.accessList.noCache, http); | |
1077 | acl_checklist->nonBlockingCheck(checkNoCacheDoneWrapper, this); | |
1078 | } else { | |
1079 | /* unless otherwise specified, we try to cache. */ | |
1080 | checkNoCacheDone(1); | |
1081 | } | |
edce4d98 | 1082 | } |
1083 | ||
de31d06f | 1084 | static void |
1085 | checkNoCacheDoneWrapper(int answer, void *data) | |
edce4d98 | 1086 | { |
de31d06f | 1087 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; |
e4a67a80 | 1088 | |
de31d06f | 1089 | if (!calloutContext->httpStateIsValid()) |
1090 | return; | |
1091 | ||
1092 | calloutContext->checkNoCacheDone(answer); | |
8e2745f4 | 1093 | } |
4fb35c3c | 1094 | |
8e2745f4 | 1095 | void |
1096 | ClientRequestContext::checkNoCacheDone(int answer) | |
62e76326 | 1097 | { |
8e2745f4 | 1098 | acl_checklist = NULL; |
de31d06f | 1099 | http->request->flags.cachable = answer; |
1100 | http->doCallouts(); | |
edce4d98 | 1101 | } |
1102 | ||
69660be0 | 1103 | /* |
1104 | * Identify requests that do not go through the store and client side stream | |
1105 | * and forward them to the appropriate location. All other requests, request | |
1106 | * them. | |
edce4d98 | 1107 | */ |
1108 | void | |
8e2745f4 | 1109 | ClientHttpRequest::processRequest() |
edce4d98 | 1110 | { |
60745f24 | 1111 | debugs(85, 4, "clientProcessRequest: " << RequestMethodStr(request->method) << " '" << uri << "'"); |
62e76326 | 1112 | |
3712be3f | 1113 | #if USE_SSL |
1114 | if (request->method == METHOD_CONNECT && sslBumpNeeded()) { | |
1115 | sslBumpStart(); | |
1116 | return; | |
1117 | } | |
1118 | #endif | |
1119 | ||
2baf58c3 | 1120 | if (request->method == METHOD_CONNECT && !redirect.status) { |
62e76326 | 1121 | logType = LOG_TCP_MISS; |
f84dd7eb | 1122 | getConn()->stopReading(); // tunnels read for themselves |
11007d4b | 1123 | tunnelStart(this, &out.size, &al.http.code); |
62e76326 | 1124 | return; |
edce4d98 | 1125 | } |
62e76326 | 1126 | |
8e2745f4 | 1127 | httpStart(); |
1128 | } | |
1129 | ||
1130 | void | |
1131 | ClientHttpRequest::httpStart() | |
1132 | { | |
559da936 | 1133 | PROF_start(httpStart); |
8e2745f4 | 1134 | logType = LOG_TAG_NONE; |
bf8fe701 | 1135 | debugs(85, 4, "ClientHttpRequest::httpStart: " << log_tags[logType] << " for '" << uri << "'"); |
1136 | ||
edce4d98 | 1137 | /* no one should have touched this */ |
8e2745f4 | 1138 | assert(out.offset == 0); |
edce4d98 | 1139 | /* Use the Stream Luke */ |
8e2745f4 | 1140 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->data; |
1141 | clientStreamRead(node, this, node->readBuffer); | |
559da936 | 1142 | PROF_stop(httpStart); |
edce4d98 | 1143 | } |
0655fa4d | 1144 | |
3712be3f | 1145 | #if USE_SSL |
1146 | ||
1147 | // determines whether we should bump the CONNECT request | |
1148 | bool | |
26ac0430 AJ |
1149 | ClientHttpRequest::sslBumpNeeded() const |
1150 | { | |
3712be3f | 1151 | if (!getConn()->port->sslBump || !Config.accessList.ssl_bump) |
1152 | return false; | |
1153 | ||
1154 | debugs(85, 5, HERE << "SslBump possible, checking ACL"); | |
1155 | ||
c0941a6a | 1156 | ACLFilledChecklist check(Config.accessList.ssl_bump, request, NULL); |
3712be3f | 1157 | check.src_addr = request->client_addr; |
26ac0430 | 1158 | check.my_addr = request->my_addr; |
26ac0430 | 1159 | return check.fastCheck() == 1; |
3712be3f | 1160 | } |
1161 | ||
1162 | // called when comm_write has completed | |
1163 | static void | |
1164 | SslBumpEstablish(int, char *, size_t, comm_err_t errflag, int, void *data) | |
1165 | { | |
1166 | ClientHttpRequest *r = static_cast<ClientHttpRequest*>(data); | |
1167 | debugs(85, 5, HERE << "responded to CONNECT: " << r << " ? " << errflag); | |
1168 | ||
1169 | assert(r && cbdataReferenceValid(r)); | |
1170 | r->sslBumpEstablish(errflag); | |
1171 | } | |
1172 | ||
1173 | void | |
1174 | ClientHttpRequest::sslBumpEstablish(comm_err_t errflag) | |
1175 | { | |
1176 | // Bail out quickly on COMM_ERR_CLOSING - close handlers will tidy up | |
1177 | if (errflag == COMM_ERR_CLOSING) | |
1178 | return; | |
1179 | ||
1180 | if (errflag) { | |
1181 | getConn()->startClosing("CONNECT response failure in SslBump"); | |
1182 | return; | |
1183 | } | |
1184 | ||
1185 | getConn()->switchToHttps(); | |
1186 | } | |
1187 | ||
1188 | void | |
1189 | ClientHttpRequest::sslBumpStart() | |
1190 | { | |
5c336a3b | 1191 | debugs(85, 5, HERE << "Confirming CONNECT tunnel on FD " << getConn()->clientConn); |
3712be3f | 1192 | // send an HTTP 200 response to kick client SSL negotiation |
5c336a3b | 1193 | debugs(33, 7, HERE << "Confirming CONNECT tunnel on FD " << getConn()->clientConn); |
3712be3f | 1194 | |
1195 | // TODO: Unify with tunnel.cc and add a Server(?) header | |
1196 | static const char *const conn_established = | |
1197 | "HTTP/1.0 200 Connection established\r\n\r\n"; | |
5c336a3b | 1198 | comm_write(getConn()->clientConn->fd, conn_established, strlen(conn_established), |
26ac0430 | 1199 | &SslBumpEstablish, this, NULL); |
3712be3f | 1200 | } |
1201 | ||
1202 | #endif | |
1203 | ||
0655fa4d | 1204 | bool |
1205 | ClientHttpRequest::gotEnough() const | |
1206 | { | |
86a2f789 | 1207 | /** TODO: should be querying the stream. */ |
7173d5b0 | 1208 | int64_t contentLength = |
06a5ae20 | 1209 | memObject()->getReply()->bodySize(request->method); |
0655fa4d | 1210 | assert(contentLength >= 0); |
1211 | ||
1212 | if (out.offset < contentLength) | |
1213 | return false; | |
1214 | ||
1215 | return true; | |
1216 | } | |
1217 | ||
86a2f789 | 1218 | void |
1219 | ClientHttpRequest::storeEntry(StoreEntry *newEntry) | |
1220 | { | |
1221 | entry_ = newEntry; | |
1222 | } | |
1223 | ||
0976f8db | 1224 | void |
1225 | ClientHttpRequest::loggingEntry(StoreEntry *newEntry) | |
1226 | { | |
1227 | if (loggingEntry_) | |
97b5e68f | 1228 | loggingEntry_->unlock(); |
0976f8db | 1229 | |
1230 | loggingEntry_ = newEntry; | |
1231 | ||
1232 | if (loggingEntry_) | |
3d0ac046 | 1233 | loggingEntry_->lock(); |
0976f8db | 1234 | } |
86a2f789 | 1235 | |
de31d06f | 1236 | /* |
1237 | * doCallouts() - This function controls the order of "callout" | |
1238 | * executions, including non-blocking access control checks, the | |
1239 | * redirector, and ICAP. Previously, these callouts were chained | |
1240 | * together such that "clientAccessCheckDone()" would call | |
1241 | * "clientRedirectStart()" and so on. | |
1242 | * | |
1243 | * The ClientRequestContext (aka calloutContext) class holds certain | |
1244 | * state data for the callout/callback operations. Previously | |
1245 | * ClientHttpRequest would sort of hand off control to ClientRequestContext | |
1246 | * for a short time. ClientRequestContext would then delete itself | |
1247 | * and pass control back to ClientHttpRequest when all callouts | |
1248 | * were finished. | |
1249 | * | |
1250 | * This caused some problems for ICAP because we want to make the | |
1251 | * ICAP callout after checking ACLs, but before checking the no_cache | |
1252 | * list. We can't stuff the ICAP state into the ClientRequestContext | |
1253 | * class because we still need the ICAP state after ClientRequestContext | |
1254 | * goes away. | |
1255 | * | |
1256 | * Note that ClientRequestContext is created before the first call | |
1257 | * to doCallouts(). | |
1258 | * | |
1259 | * If one of the callouts notices that ClientHttpRequest is no | |
1260 | * longer valid, it should call cbdataReferenceDone() so that | |
1261 | * ClientHttpRequest's reference count goes to zero and it will get | |
1262 | * deleted. ClientHttpRequest will then delete ClientRequestContext. | |
1263 | * | |
1264 | * Note that we set the _done flags here before actually starting | |
1265 | * the callout. This is strictly for convenience. | |
1266 | */ | |
1267 | ||
057f5854 | 1268 | extern int aclMapTOS (acl_tos * head, ACLChecklist * ch); |
1269 | ||
de31d06f | 1270 | void |
1271 | ClientHttpRequest::doCallouts() | |
1272 | { | |
1273 | assert(calloutContext); | |
1274 | ||
6fca33e0 CT |
1275 | /*Save the original request for logging purposes*/ |
1276 | if (!calloutContext->http->al.request) | |
105d1937 | 1277 | calloutContext->http->al.request = HTTPMSGLOCK(request); |
6fca33e0 | 1278 | |
de31d06f | 1279 | if (!calloutContext->http_access_done) { |
3712be3f | 1280 | debugs(83, 3, HERE << "Doing calloutContext->clientAccessCheck()"); |
57abaac0 | 1281 | calloutContext->http_access_done = true; |
de31d06f | 1282 | calloutContext->clientAccessCheck(); |
1283 | return; | |
1284 | } | |
1285 | ||
a83c6ed6 | 1286 | #if USE_ADAPTATION |
abd4b611 | 1287 | if (!calloutContext->adaptation_acl_check_done) { |
a83c6ed6 | 1288 | calloutContext->adaptation_acl_check_done = true; |
abd4b611 | 1289 | if (Adaptation::AccessCheck::Start( |
26ac0430 AJ |
1290 | Adaptation::methodReqmod, Adaptation::pointPreCache, |
1291 | request, NULL, adaptationAclCheckDoneWrapper, calloutContext)) | |
abd4b611 | 1292 | return; // will call callback |
de31d06f | 1293 | } |
de31d06f | 1294 | #endif |
1295 | ||
1296 | if (!calloutContext->redirect_done) { | |
57abaac0 | 1297 | calloutContext->redirect_done = true; |
de31d06f | 1298 | assert(calloutContext->redirect_state == REDIRECT_NONE); |
1299 | ||
1300 | if (Config.Program.redirect) { | |
3712be3f | 1301 | debugs(83, 3, HERE << "Doing calloutContext->clientRedirectStart()"); |
de31d06f | 1302 | calloutContext->redirect_state = REDIRECT_PENDING; |
1303 | calloutContext->clientRedirectStart(); | |
1304 | return; | |
1305 | } | |
1306 | } | |
1307 | ||
533493da AJ |
1308 | if (!calloutContext->adapted_http_access_done) { |
1309 | debugs(83, 3, HERE << "Doing calloutContext->clientAccessCheck2()"); | |
1310 | calloutContext->adapted_http_access_done = true; | |
1311 | calloutContext->clientAccessCheck2(); | |
1312 | return; | |
1313 | } | |
1314 | ||
57abaac0 | 1315 | if (!calloutContext->interpreted_req_hdrs) { |
3712be3f | 1316 | debugs(83, 3, HERE << "Doing clientInterpretRequestHeaders()"); |
57abaac0 | 1317 | calloutContext->interpreted_req_hdrs = 1; |
1318 | clientInterpretRequestHeaders(this); | |
1319 | } | |
1320 | ||
de31d06f | 1321 | if (!calloutContext->no_cache_done) { |
57abaac0 | 1322 | calloutContext->no_cache_done = true; |
de31d06f | 1323 | |
1324 | if (Config.accessList.noCache && request->flags.cachable) { | |
3712be3f | 1325 | debugs(83, 3, HERE << "Doing calloutContext->checkNoCache()"); |
de31d06f | 1326 | calloutContext->checkNoCache(); |
1327 | return; | |
1328 | } | |
1329 | } | |
1330 | ||
057f5854 | 1331 | if (!calloutContext->clientside_tos_done) { |
1332 | calloutContext->clientside_tos_done = true; | |
5c336a3b | 1333 | if (getConn() != NULL && Comm::IsConnOpen(getConn()->clientConn)) { |
c0941a6a | 1334 | ACLFilledChecklist ch(NULL, request, NULL); |
057f5854 | 1335 | ch.src_addr = request->client_addr; |
1336 | ch.my_addr = request->my_addr; | |
3712be3f | 1337 | int tos = aclMapTOS(Config.accessList.clientside_tos, &ch); |
1338 | if (tos) | |
5c336a3b | 1339 | comm_set_tos(getConn()->clientConn->fd, tos); |
3712be3f | 1340 | } |
057f5854 | 1341 | } |
1342 | ||
de31d06f | 1343 | cbdataReferenceDone(calloutContext->http); |
1344 | delete calloutContext; | |
1345 | calloutContext = NULL; | |
de31d06f | 1346 | #if HEADERS_LOG |
1347 | ||
1348 | headersLog(0, 1, request->method, request); | |
1349 | #endif | |
1350 | ||
58d7150d | 1351 | debugs(83, 3, HERE << "calling processRequest()"); |
de31d06f | 1352 | processRequest(); |
3ff65596 AR |
1353 | |
1354 | #if ICAP_CLIENT | |
1355 | Adaptation::Icap::History::Pointer ih = request->icapHistory(); | |
1356 | if (ih != NULL) | |
1357 | ih->logType = logType; | |
1358 | #endif | |
de31d06f | 1359 | } |
1360 | ||
32d002cb | 1361 | #if !_USE_INLINE_ |
86a2f789 | 1362 | #include "client_side_request.cci" |
1363 | #endif | |
de31d06f | 1364 | |
a83c6ed6 | 1365 | #if USE_ADAPTATION |
a22e6cd3 AR |
1366 | /// Initiate an asynchronous adaptation transaction which will call us back. |
1367 | void | |
1368 | ClientHttpRequest::startAdaptation(const Adaptation::ServiceGroupPointer &g) | |
3b299123 | 1369 | { |
a22e6cd3 | 1370 | debugs(85, 3, HERE << "adaptation needed for " << this); |
a83c6ed6 AR |
1371 | assert(!virginHeadSource); |
1372 | assert(!adaptedBodySource); | |
a22e6cd3 | 1373 | virginHeadSource = initiateAdaptation( |
4cb2536f | 1374 | new Adaptation::Iterator(request, NULL, g)); |
a83c6ed6 | 1375 | |
e1381638 | 1376 | // we could try to guess whether we can bypass this adaptation |
a22e6cd3 | 1377 | // initiation failure, but it should not really happen |
4299f876 | 1378 | Must(initiated(virginHeadSource)); |
de31d06f | 1379 | } |
1380 | ||
1381 | void | |
a83c6ed6 | 1382 | ClientHttpRequest::noteAdaptationAnswer(HttpMsg *msg) |
de31d06f | 1383 | { |
de31d06f | 1384 | assert(cbdataReferenceValid(this)); // indicates bug |
5f8252d2 | 1385 | assert(msg); |
1386 | ||
b044675d | 1387 | if (HttpRequest *new_req = dynamic_cast<HttpRequest*>(msg)) { |
200ac359 | 1388 | /* |
5f8252d2 | 1389 | * Replace the old request with the new request. |
200ac359 | 1390 | */ |
6dd9f4bd | 1391 | HTTPMSGUNLOCK(request); |
1392 | request = HTTPMSGLOCK(new_req); | |
200ac359 | 1393 | /* |
1394 | * Store the new URI for logging | |
1395 | */ | |
1396 | xfree(uri); | |
1397 | uri = xstrdup(urlCanonical(request)); | |
1398 | setLogUri(this, urlCanonicalClean(request)); | |
914b89a2 | 1399 | assert(request->method.id()); |
b044675d | 1400 | } else if (HttpReply *new_rep = dynamic_cast<HttpReply*>(msg)) { |
1401 | debugs(85,3,HERE << "REQMOD reply is HTTP reply"); | |
1402 | ||
5f8252d2 | 1403 | // subscribe to receive reply body |
1404 | if (new_rep->body_pipe != NULL) { | |
a83c6ed6 | 1405 | adaptedBodySource = new_rep->body_pipe; |
d222a56c HN |
1406 | int consumer_ok = adaptedBodySource->setConsumerIfNotLate(this); |
1407 | assert(consumer_ok); | |
5f8252d2 | 1408 | } |
1409 | ||
b044675d | 1410 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->prev->data; |
1411 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1412 | repContext->createStoreEntry(request->method, request->flags); | |
1413 | ||
1414 | EBIT_CLR(storeEntry()->flags, ENTRY_FWD_HDR_WAIT); | |
1415 | request_satisfaction_mode = true; | |
1416 | request_satisfaction_offset = 0; | |
1417 | storeEntry()->replaceHttpReply(new_rep); | |
97ae5196 | 1418 | storeEntry()->timestampsSet(); |
cb4c4288 | 1419 | |
a83c6ed6 | 1420 | if (!adaptedBodySource) // no body |
cb4c4288 | 1421 | storeEntry()->complete(); |
b044675d | 1422 | clientGetMoreData(node, this); |
200ac359 | 1423 | } |
de31d06f | 1424 | |
5f8252d2 | 1425 | // we are done with getting headers (but may be receiving body) |
a83c6ed6 | 1426 | clearAdaptation(virginHeadSource); |
5f8252d2 | 1427 | |
b044675d | 1428 | if (!request_satisfaction_mode) |
1429 | doCallouts(); | |
de31d06f | 1430 | } |
1431 | ||
1432 | void | |
a83c6ed6 | 1433 | ClientHttpRequest::noteAdaptationQueryAbort(bool final) |
de31d06f | 1434 | { |
a83c6ed6 AR |
1435 | clearAdaptation(virginHeadSource); |
1436 | assert(!adaptedBodySource); | |
1437 | handleAdaptationFailure(!final); | |
de31d06f | 1438 | } |
1439 | ||
1440 | void | |
1cf238db | 1441 | ClientHttpRequest::noteMoreBodyDataAvailable(BodyPipe::Pointer) |
de31d06f | 1442 | { |
5f8252d2 | 1443 | assert(request_satisfaction_mode); |
a83c6ed6 | 1444 | assert(adaptedBodySource != NULL); |
5f8252d2 | 1445 | |
4ce0e99b | 1446 | if (const size_t contentSize = adaptedBodySource->buf().contentSize()) { |
a83c6ed6 | 1447 | BodyPipeCheckout bpc(*adaptedBodySource); |
4ce0e99b | 1448 | const StoreIOBuffer ioBuf(&bpc.buf, request_satisfaction_offset); |
5f8252d2 | 1449 | storeEntry()->write(ioBuf); |
1450 | // assume can write everything | |
1451 | request_satisfaction_offset += contentSize; | |
4ce0e99b | 1452 | bpc.buf.consume(contentSize); |
5f8252d2 | 1453 | bpc.checkIn(); |
1454 | } | |
1455 | ||
a83c6ed6 | 1456 | if (adaptedBodySource->exhausted()) |
5f8252d2 | 1457 | endRequestSatisfaction(); |
1458 | // else wait for more body data | |
de31d06f | 1459 | } |
1460 | ||
1461 | void | |
1cf238db | 1462 | ClientHttpRequest::noteBodyProductionEnded(BodyPipe::Pointer) |
de31d06f | 1463 | { |
a83c6ed6 AR |
1464 | assert(!virginHeadSource); |
1465 | if (adaptedBodySource != NULL) { // did not end request satisfaction yet | |
26ac0430 | 1466 | // We do not expect more because noteMoreBodyDataAvailable always |
5f8252d2 | 1467 | // consumes everything. We do not even have a mechanism to consume |
1468 | // leftovers after noteMoreBodyDataAvailable notifications seize. | |
a83c6ed6 | 1469 | assert(adaptedBodySource->exhausted()); |
5f8252d2 | 1470 | endRequestSatisfaction(); |
1471 | } | |
1472 | } | |
3b299123 | 1473 | |
5f8252d2 | 1474 | void |
26ac0430 AJ |
1475 | ClientHttpRequest::endRequestSatisfaction() |
1476 | { | |
5f8252d2 | 1477 | debugs(85,4, HERE << this << " ends request satisfaction"); |
1478 | assert(request_satisfaction_mode); | |
a83c6ed6 | 1479 | stopConsumingFrom(adaptedBodySource); |
3b299123 | 1480 | |
5f8252d2 | 1481 | // TODO: anything else needed to end store entry formation correctly? |
1482 | storeEntry()->complete(); | |
1483 | } | |
de31d06f | 1484 | |
5f8252d2 | 1485 | void |
1cf238db | 1486 | ClientHttpRequest::noteBodyProducerAborted(BodyPipe::Pointer) |
5f8252d2 | 1487 | { |
a83c6ed6 AR |
1488 | assert(!virginHeadSource); |
1489 | stopConsumingFrom(adaptedBodySource); | |
1490 | handleAdaptationFailure(); | |
5f8252d2 | 1491 | } |
3b299123 | 1492 | |
5f8252d2 | 1493 | void |
a83c6ed6 | 1494 | ClientHttpRequest::handleAdaptationFailure(bool bypassable) |
5f8252d2 | 1495 | { |
a83c6ed6 | 1496 | debugs(85,3, HERE << "handleAdaptationFailure(" << bypassable << ")"); |
3b299123 | 1497 | |
5f8252d2 | 1498 | const bool usedStore = storeEntry() && !storeEntry()->isEmpty(); |
1499 | const bool usedPipe = request->body_pipe != NULL && | |
26ac0430 | 1500 | request->body_pipe->consumedSize() > 0; |
3b299123 | 1501 | |
9d4d7c5e | 1502 | if (bypassable && !usedStore && !usedPipe) { |
1503 | debugs(85,3, HERE << "ICAP REQMOD callout failed, bypassing: " << calloutContext); | |
5f8252d2 | 1504 | if (calloutContext) |
1505 | doCallouts(); | |
1506 | return; | |
1507 | } | |
3b299123 | 1508 | |
5f8252d2 | 1509 | debugs(85,3, HERE << "ICAP REQMOD callout failed, responding with error"); |
3b299123 | 1510 | |
5f8252d2 | 1511 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->prev->data; |
1512 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1513 | assert(repContext); | |
de31d06f | 1514 | |
26ac0430 | 1515 | // The original author of the code also wanted to pass an errno to |
5f8252d2 | 1516 | // setReplyToError, but it seems unlikely that the errno reflects the |
1517 | // true cause of the error at this point, so I did not pass it. | |
b7ac5457 | 1518 | Ip::Address noAddr; |
b70ba605 | 1519 | noAddr.SetNoAddr(); |
1cf238db | 1520 | ConnStateData * c = getConn(); |
5f8252d2 | 1521 | repContext->setReplyToError(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR, |
26ac0430 AJ |
1522 | request->method, NULL, |
1523 | (c != NULL ? c->peer : noAddr), request, NULL, | |
a33a428a | 1524 | (c != NULL && c->auth_user_request != NULL ? |
26ac0430 | 1525 | c->auth_user_request : request->auth_user_request)); |
de31d06f | 1526 | |
5f8252d2 | 1527 | node = (clientStreamNode *)client_stream.tail->data; |
1528 | clientStreamRead(node, this, node->readBuffer); | |
de31d06f | 1529 | } |
1530 | ||
1531 | #endif |