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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" | |
62 | #include "compat/inet_pton.h" | |
63 | #include "fde.h" | |
64 | #include "HttpReply.h" | |
65 | #include "HttpRequest.h" | |
66 | #include "MemObject.h" | |
67 | #include "ProtoPort.h" | |
68 | #include "Store.h" | |
69 | #include "SquidTime.h" | |
70 | #include "wordlist.h" | |
3ff65596 AR |
71 | |
72 | ||
edce4d98 | 73 | #if LINGERING_CLOSE |
74 | #define comm_close comm_lingering_close | |
75 | #endif | |
76 | ||
77 | static const char *const crlf = "\r\n"; | |
78 | ||
609c620a | 79 | #if FOLLOW_X_FORWARDED_FOR |
3d674977 AJ |
80 | static void |
81 | clientFollowXForwardedForCheck(int answer, void *data); | |
609c620a | 82 | #endif /* FOLLOW_X_FORWARDED_FOR */ |
3d674977 | 83 | |
8e2745f4 | 84 | CBDATA_CLASS_INIT(ClientRequestContext); |
85 | ||
86 | void * | |
87 | ClientRequestContext::operator new (size_t size) | |
88 | { | |
89 | assert (size == sizeof(ClientRequestContext)); | |
90 | CBDATA_INIT_TYPE(ClientRequestContext); | |
91 | ClientRequestContext *result = cbdataAlloc(ClientRequestContext); | |
aa625860 | 92 | return result; |
8e2745f4 | 93 | } |
62e76326 | 94 | |
8e2745f4 | 95 | void |
96 | ClientRequestContext::operator delete (void *address) | |
97 | { | |
98 | ClientRequestContext *t = static_cast<ClientRequestContext *>(address); | |
aa625860 | 99 | cbdataFree(t); |
8e2745f4 | 100 | } |
101 | ||
edce4d98 | 102 | /* Local functions */ |
edce4d98 | 103 | /* other */ |
de31d06f | 104 | static void clientAccessCheckDoneWrapper(int, void *); |
59a1efb2 | 105 | static int clientHierarchical(ClientHttpRequest * http); |
106 | static void clientInterpretRequestHeaders(ClientHttpRequest * http); | |
de31d06f | 107 | static RH clientRedirectDoneWrapper; |
108 | static PF checkNoCacheDoneWrapper; | |
e6ccf245 | 109 | extern "C" CSR clientGetMoreData; |
110 | extern "C" CSS clientReplyStatus; | |
111 | extern "C" CSD clientReplyDetach; | |
528b2c61 | 112 | static void checkFailureRatio(err_type, hier_code); |
edce4d98 | 113 | |
8e2745f4 | 114 | ClientRequestContext::~ClientRequestContext() |
115 | { | |
de31d06f | 116 | /* |
a546b04b | 117 | * Release our "lock" on our parent, ClientHttpRequest, if we |
118 | * still have one | |
de31d06f | 119 | */ |
a546b04b | 120 | |
121 | if (http) | |
122 | cbdataReferenceDone(http); | |
62e76326 | 123 | |
5f8252d2 | 124 | debugs(85,3, HERE << this << " ClientRequestContext destructed"); |
8e2745f4 | 125 | } |
126 | ||
4e2eb5c3 | 127 | ClientRequestContext::ClientRequestContext(ClientHttpRequest *anHttp) : http(cbdataReference(anHttp)), acl_checklist (NULL), redirect_state (REDIRECT_NONE) |
edce4d98 | 128 | { |
57abaac0 | 129 | http_access_done = false; |
130 | redirect_done = false; | |
131 | no_cache_done = false; | |
132 | interpreted_req_hdrs = false; | |
0b86805b | 133 | debugs(85,3, HERE << this << " ClientRequestContext constructed"); |
edce4d98 | 134 | } |
135 | ||
528b2c61 | 136 | CBDATA_CLASS_INIT(ClientHttpRequest); |
8e2745f4 | 137 | |
528b2c61 | 138 | void * |
139 | ClientHttpRequest::operator new (size_t size) | |
140 | { | |
141 | assert (size == sizeof (ClientHttpRequest)); | |
142 | CBDATA_INIT_TYPE(ClientHttpRequest); | |
143 | ClientHttpRequest *result = cbdataAlloc(ClientHttpRequest); | |
aa625860 | 144 | return result; |
528b2c61 | 145 | } |
146 | ||
62e76326 | 147 | void |
528b2c61 | 148 | ClientHttpRequest::operator delete (void *address) |
149 | { | |
aa625860 | 150 | ClientHttpRequest *t = static_cast<ClientHttpRequest *>(address); |
151 | cbdataFree(t); | |
528b2c61 | 152 | } |
153 | ||
26ac0430 | 154 | ClientHttpRequest::ClientHttpRequest(ConnStateData * aConn) : |
a83c6ed6 | 155 | #if USE_ADAPTATION |
26ac0430 | 156 | AsyncJob("ClientHttpRequest"), |
1cf238db | 157 | #endif |
26ac0430 | 158 | loggingEntry_(NULL) |
528b2c61 | 159 | { |
1cf238db | 160 | start_time = current_time; |
a0355e95 | 161 | setConn(aConn); |
162 | dlinkAdd(this, &active, &ClientActiveRequests); | |
a83c6ed6 | 163 | #if USE_ADAPTATION |
b044675d | 164 | request_satisfaction_mode = false; |
165 | #endif | |
528b2c61 | 166 | } |
167 | ||
0655fa4d | 168 | /* |
169 | * returns true if client specified that the object must come from the cache | |
170 | * without contacting origin server | |
171 | */ | |
172 | bool | |
173 | ClientHttpRequest::onlyIfCached()const | |
174 | { | |
175 | assert(request); | |
176 | return request->cache_control && | |
177 | EBIT_TEST(request->cache_control->mask, CC_ONLY_IF_CACHED); | |
178 | } | |
179 | ||
528b2c61 | 180 | /* |
181 | * This function is designed to serve a fairly specific purpose. | |
182 | * Occasionally our vBNS-connected caches can talk to each other, but not | |
183 | * the rest of the world. Here we try to detect frequent failures which | |
184 | * make the cache unusable (e.g. DNS lookup and connect() failures). If | |
185 | * the failure:success ratio goes above 1.0 then we go into "hit only" | |
186 | * mode where we only return UDP_HIT or UDP_MISS_NOFETCH. Neighbors | |
187 | * will only fetch HITs from us if they are using the ICP protocol. We | |
188 | * stay in this mode for 5 minutes. | |
26ac0430 | 189 | * |
528b2c61 | 190 | * Duane W., Sept 16, 1996 |
191 | */ | |
192 | ||
193 | #define FAILURE_MODE_TIME 300 | |
194 | ||
195 | static void | |
196 | checkFailureRatio(err_type etype, hier_code hcode) | |
197 | { | |
198 | static double magic_factor = 100.0; | |
199 | double n_good; | |
200 | double n_bad; | |
62e76326 | 201 | |
528b2c61 | 202 | if (hcode == HIER_NONE) |
62e76326 | 203 | return; |
204 | ||
528b2c61 | 205 | n_good = magic_factor / (1.0 + request_failure_ratio); |
62e76326 | 206 | |
528b2c61 | 207 | n_bad = magic_factor - n_good; |
62e76326 | 208 | |
528b2c61 | 209 | switch (etype) { |
62e76326 | 210 | |
528b2c61 | 211 | case ERR_DNS_FAIL: |
62e76326 | 212 | |
528b2c61 | 213 | case ERR_CONNECT_FAIL: |
3712be3f | 214 | case ERR_SECURE_CONNECT_FAIL: |
62e76326 | 215 | |
528b2c61 | 216 | case ERR_READ_ERROR: |
62e76326 | 217 | n_bad++; |
218 | break; | |
219 | ||
528b2c61 | 220 | default: |
62e76326 | 221 | n_good++; |
528b2c61 | 222 | } |
62e76326 | 223 | |
528b2c61 | 224 | request_failure_ratio = n_bad / n_good; |
62e76326 | 225 | |
528b2c61 | 226 | if (hit_only_mode_until > squid_curtime) |
62e76326 | 227 | return; |
228 | ||
528b2c61 | 229 | if (request_failure_ratio < 1.0) |
62e76326 | 230 | return; |
231 | ||
bf8fe701 | 232 | debugs(33, 0, "Failure Ratio at "<< std::setw(4)<< |
233 | std::setprecision(3) << request_failure_ratio); | |
62e76326 | 234 | |
bf8fe701 | 235 | debugs(33, 0, "Going into hit-only-mode for " << |
236 | FAILURE_MODE_TIME / 60 << " minutes..."); | |
62e76326 | 237 | |
528b2c61 | 238 | hit_only_mode_until = squid_curtime + FAILURE_MODE_TIME; |
62e76326 | 239 | |
528b2c61 | 240 | request_failure_ratio = 0.8; /* reset to something less than 1.0 */ |
241 | } | |
242 | ||
243 | ClientHttpRequest::~ClientHttpRequest() | |
244 | { | |
bf8fe701 | 245 | debugs(33, 3, "httpRequestFree: " << uri); |
72bdee4c | 246 | PROF_start(httpRequestFree); |
62e76326 | 247 | |
5f8252d2 | 248 | // Even though freeResources() below may destroy the request, |
249 | // we no longer set request->body_pipe to NULL here | |
250 | // because we did not initiate that pipe (ConnStateData did) | |
62e76326 | 251 | |
528b2c61 | 252 | /* the ICP check here was erroneous |
26ac0430 | 253 | * - StoreEntry::releaseRequest was always called if entry was valid |
528b2c61 | 254 | */ |
255 | assert(logType < LOG_TYPE_MAX); | |
9ce7856a | 256 | |
528b2c61 | 257 | logRequest(); |
9ce7856a | 258 | |
0976f8db | 259 | loggingEntry(NULL); |
260 | ||
528b2c61 | 261 | if (request) |
62e76326 | 262 | checkFailureRatio(request->errType, al.hier.code); |
263 | ||
528b2c61 | 264 | freeResources(); |
62e76326 | 265 | |
a83c6ed6 AR |
266 | #if USE_ADAPTATION |
267 | announceInitiatorAbort(virginHeadSource); | |
9d4d7c5e | 268 | |
a83c6ed6 AR |
269 | if (adaptedBodySource != NULL) |
270 | stopConsumingFrom(adaptedBodySource); | |
de31d06f | 271 | #endif |
9ce7856a | 272 | |
de31d06f | 273 | if (calloutContext) |
274 | delete calloutContext; | |
275 | ||
26ac0430 AJ |
276 | if (conn_) |
277 | cbdataReferenceDone(conn_); | |
1cf238db | 278 | |
528b2c61 | 279 | /* moving to the next connection is handled by the context free */ |
280 | dlinkDelete(&active, &ClientActiveRequests); | |
9ce7856a | 281 | |
72bdee4c | 282 | PROF_stop(httpRequestFree); |
528b2c61 | 283 | } |
62e76326 | 284 | |
11992b6f AJ |
285 | /** |
286 | * Create a request and kick it off | |
287 | * | |
288 | * \retval 0 success | |
289 | * \retval -1 failure | |
290 | * | |
69660be0 | 291 | * TODO: Pass in the buffers to be used in the inital Read request, as they are |
292 | * determined by the user | |
edce4d98 | 293 | */ |
11992b6f | 294 | int |
60745f24 | 295 | clientBeginRequest(const HttpRequestMethod& method, char const *url, CSCB * streamcallback, |
0655fa4d | 296 | CSD * streamdetach, ClientStreamData streamdata, HttpHeader const *header, |
62e76326 | 297 | char *tailbuf, size_t taillen) |
edce4d98 | 298 | { |
299 | size_t url_sz; | |
a0355e95 | 300 | ClientHttpRequest *http = new ClientHttpRequest(NULL); |
190154cf | 301 | HttpRequest *request; |
528b2c61 | 302 | StoreIOBuffer tempBuffer; |
1cf238db | 303 | http->start_time = current_time; |
edce4d98 | 304 | /* this is only used to adjust the connection offset in client_side.c */ |
305 | http->req_sz = 0; | |
c8be6d7b | 306 | tempBuffer.length = taillen; |
307 | tempBuffer.data = tailbuf; | |
edce4d98 | 308 | /* client stream setup */ |
309 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, | |
0655fa4d | 310 | clientReplyStatus, new clientReplyContext(http), streamcallback, |
62e76326 | 311 | streamdetach, streamdata, tempBuffer); |
edce4d98 | 312 | /* make it visible in the 'current acctive requests list' */ |
edce4d98 | 313 | /* Set flags */ |
a46d2c0e | 314 | /* internal requests only makes sense in an |
315 | * accelerator today. TODO: accept flags ? */ | |
316 | http->flags.accel = 1; | |
edce4d98 | 317 | /* allow size for url rewriting */ |
318 | url_sz = strlen(url) + Config.appendDomainLen + 5; | |
e6ccf245 | 319 | http->uri = (char *)xcalloc(url_sz, 1); |
edce4d98 | 320 | strcpy(http->uri, url); |
321 | ||
c21ad0f5 | 322 | if ((request = HttpRequest::CreateFromUrlAndMethod(http->uri, method)) == NULL) { |
bf8fe701 | 323 | debugs(85, 5, "Invalid URL: " << http->uri); |
62e76326 | 324 | return -1; |
edce4d98 | 325 | } |
62e76326 | 326 | |
69660be0 | 327 | /* |
11992b6f | 328 | * now update the headers in request with our supplied headers. urlParse |
69660be0 | 329 | * should return a blank header set, but we use Update to be sure of |
330 | * correctness. | |
edce4d98 | 331 | */ |
332 | if (header) | |
a9925b40 | 333 | request->header.update(header, NULL); |
62e76326 | 334 | |
edce4d98 | 335 | http->log_uri = xstrdup(urlCanonicalClean(request)); |
62e76326 | 336 | |
edce4d98 | 337 | /* http struct now ready */ |
338 | ||
69660be0 | 339 | /* |
340 | * build new header list *? TODO | |
edce4d98 | 341 | */ |
342 | request->flags.accelerated = http->flags.accel; | |
62e76326 | 343 | |
a46d2c0e | 344 | request->flags.internalclient = 1; |
345 | ||
346 | /* this is an internally created | |
347 | * request, not subject to acceleration | |
348 | * target overrides */ | |
69660be0 | 349 | /* |
350 | * FIXME? Do we want to detect and handle internal requests of internal | |
351 | * objects ? | |
352 | */ | |
edce4d98 | 353 | |
354 | /* Internally created requests cannot have bodies today */ | |
355 | request->content_length = 0; | |
62e76326 | 356 | |
cc192b50 | 357 | request->client_addr.SetNoAddr(); |
62e76326 | 358 | |
3d674977 AJ |
359 | #if FOLLOW_X_FORWARDED_FOR |
360 | request->indirect_client_addr.SetNoAddr(); | |
361 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
26ac0430 | 362 | |
cc192b50 | 363 | request->my_addr.SetNoAddr(); /* undefined for internal requests */ |
62e76326 | 364 | |
cc192b50 | 365 | request->my_addr.SetPort(0); |
62e76326 | 366 | |
3872be7c AJ |
367 | /* Our version is HTTP/1.1 */ |
368 | HttpVersion http_ver(1,1); | |
edce4d98 | 369 | request->http_ver = http_ver; |
62e76326 | 370 | |
6dd9f4bd | 371 | http->request = HTTPMSGLOCK(request); |
edce4d98 | 372 | |
373 | /* optional - skip the access check ? */ | |
de31d06f | 374 | http->calloutContext = new ClientRequestContext(http); |
375 | ||
57abaac0 | 376 | http->calloutContext->http_access_done = false; |
de31d06f | 377 | |
57abaac0 | 378 | http->calloutContext->redirect_done = true; |
de31d06f | 379 | |
57abaac0 | 380 | http->calloutContext->no_cache_done = true; |
de31d06f | 381 | |
382 | http->doCallouts(); | |
62e76326 | 383 | |
edce4d98 | 384 | return 0; |
385 | } | |
386 | ||
de31d06f | 387 | bool |
388 | ClientRequestContext::httpStateIsValid() | |
389 | { | |
390 | ClientHttpRequest *http_ = http; | |
391 | ||
392 | if (cbdataReferenceValid(http_)) | |
393 | return true; | |
394 | ||
395 | http = NULL; | |
396 | ||
397 | cbdataReferenceDone(http_); | |
398 | ||
399 | return false; | |
400 | } | |
401 | ||
3d674977 AJ |
402 | #if FOLLOW_X_FORWARDED_FOR |
403 | /** | |
a9044668 | 404 | * clientFollowXForwardedForCheck() checks the content of X-Forwarded-For: |
3d674977 AJ |
405 | * against the followXFF ACL, or cleans up and passes control to |
406 | * clientAccessCheck(). | |
d096ace1 AJ |
407 | * |
408 | * The trust model here is a little ambiguous. So to clarify the logic: | |
409 | * - we may always use the direct client address as the client IP. | |
a9044668 | 410 | * - these trust tests merey tell whether we trust given IP enough to believe the |
d096ace1 AJ |
411 | * IP string which it appended to the X-Forwarded-For: header. |
412 | * - if at any point we don't trust what an IP adds we stop looking. | |
413 | * - at that point the current contents of indirect_client_addr are the value set | |
414 | * by the last previously trusted IP. | |
415 | * ++ indirect_client_addr contains the remote direct client from the trusted peers viewpoint. | |
3d674977 | 416 | */ |
3d674977 AJ |
417 | static void |
418 | clientFollowXForwardedForCheck(int answer, void *data) | |
419 | { | |
420 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; | |
3d674977 AJ |
421 | |
422 | if (!calloutContext->httpStateIsValid()) | |
423 | return; | |
424 | ||
d096ace1 AJ |
425 | ClientHttpRequest *http = calloutContext->http; |
426 | HttpRequest *request = http->request; | |
427 | ||
3d674977 AJ |
428 | /* |
429 | * answer should be be ACCESS_ALLOWED or ACCESS_DENIED if we are | |
430 | * called as a result of ACL checks, or -1 if we are called when | |
431 | * there's nothing left to do. | |
432 | */ | |
433 | if (answer == ACCESS_ALLOWED && | |
26ac0430 | 434 | request->x_forwarded_for_iterator.size () != 0) { |
d096ace1 | 435 | |
3d674977 | 436 | /* |
d096ace1 AJ |
437 | * Remove the last comma-delimited element from the |
438 | * x_forwarded_for_iterator and use it to repeat the cycle. | |
439 | */ | |
3d674977 AJ |
440 | const char *p; |
441 | const char *asciiaddr; | |
442 | int l; | |
b7ac5457 | 443 | Ip::Address addr; |
bb790702 | 444 | p = request->x_forwarded_for_iterator.termedBuf(); |
3d674977 AJ |
445 | l = request->x_forwarded_for_iterator.size(); |
446 | ||
447 | /* | |
448 | * XXX x_forwarded_for_iterator should really be a list of | |
449 | * IP addresses, but it's a String instead. We have to | |
450 | * walk backwards through the String, biting off the last | |
451 | * comma-delimited part each time. As long as the data is in | |
452 | * a String, we should probably implement and use a variant of | |
453 | * strListGetItem() that walks backwards instead of forwards | |
454 | * through a comma-separated list. But we don't even do that; | |
455 | * we just do the work in-line here. | |
456 | */ | |
457 | /* skip trailing space and commas */ | |
458 | while (l > 0 && (p[l-1] == ',' || xisspace(p[l-1]))) | |
459 | l--; | |
460 | request->x_forwarded_for_iterator.cut(l); | |
461 | /* look for start of last item in list */ | |
462 | while (l > 0 && ! (p[l-1] == ',' || xisspace(p[l-1]))) | |
463 | l--; | |
464 | asciiaddr = p+l; | |
fafd0efa | 465 | if ((addr = asciiaddr)) { |
3d674977 AJ |
466 | request->indirect_client_addr = addr; |
467 | request->x_forwarded_for_iterator.cut(l); | |
d096ace1 AJ |
468 | calloutContext->acl_checklist = clientAclChecklistCreate(Config.accessList.followXFF, http); |
469 | if (!Config.onoff.acl_uses_indirect_client) { | |
470 | /* override the default src_addr tested if we have to go deeper than one level into XFF */ | |
471 | Filled(calloutContext->acl_checklist)->src_addr = request->indirect_client_addr; | |
3d674977 | 472 | } |
d096ace1 | 473 | calloutContext->acl_checklist->nonBlockingCheck(clientFollowXForwardedForCheck, data); |
3d674977 AJ |
474 | return; |
475 | } | |
476 | } /*if (answer == ACCESS_ALLOWED && | |
477 | request->x_forwarded_for_iterator.size () != 0)*/ | |
478 | ||
479 | /* clean up, and pass control to clientAccessCheck */ | |
26ac0430 | 480 | if (Config.onoff.log_uses_indirect_client) { |
3d674977 AJ |
481 | /* |
482 | * Ensure that the access log shows the indirect client | |
483 | * instead of the direct client. | |
484 | */ | |
485 | ConnStateData *conn = http->getConn(); | |
486 | conn->log_addr = request->indirect_client_addr; | |
487 | } | |
488 | request->x_forwarded_for_iterator.clean(); | |
489 | request->flags.done_follow_x_forwarded_for = 1; | |
490 | ||
d096ace1 AJ |
491 | if (answer != ACCESS_ALLOWED && answer != ACCESS_DENIED) { |
492 | debugs(28, DBG_CRITICAL, "ERROR: Processing X-Forwarded-For. Stopping at IP address: " << request->indirect_client_addr ); | |
493d3865 AJ |
493 | } |
494 | ||
495 | /* process actual access ACL as normal. */ | |
496 | calloutContext->clientAccessCheck(); | |
3d674977 AJ |
497 | } |
498 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
499 | ||
edce4d98 | 500 | /* This is the entry point for external users of the client_side routines */ |
501 | void | |
de31d06f | 502 | ClientRequestContext::clientAccessCheck() |
edce4d98 | 503 | { |
3d674977 AJ |
504 | #if FOLLOW_X_FORWARDED_FOR |
505 | if (!http->request->flags.done_follow_x_forwarded_for && | |
26ac0430 AJ |
506 | Config.accessList.followXFF && |
507 | http->request->header.has(HDR_X_FORWARDED_FOR)) { | |
d096ace1 AJ |
508 | |
509 | /* we always trust the direct client address for actual use */ | |
510 | http->request->indirect_client_addr = http->request->client_addr; | |
fafd0efa | 511 | http->request->indirect_client_addr.SetPort(0); |
d096ace1 AJ |
512 | |
513 | /* setup the XFF iterator for processing */ | |
514 | http->request->x_forwarded_for_iterator = http->request->header.getList(HDR_X_FORWARDED_FOR); | |
515 | ||
516 | /* begin by checking to see if we trust direct client enough to walk XFF */ | |
517 | acl_checklist = clientAclChecklistCreate(Config.accessList.followXFF, http); | |
518 | acl_checklist->nonBlockingCheck(clientFollowXForwardedForCheck, this); | |
3d674977 AJ |
519 | return; |
520 | } | |
521 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
493d3865 | 522 | |
b50e327b AJ |
523 | if (Config.accessList.http) { |
524 | acl_checklist = clientAclChecklistCreate(Config.accessList.http, http); | |
525 | acl_checklist->nonBlockingCheck(clientAccessCheckDoneWrapper, this); | |
526 | } else { | |
527 | debugs(0, DBG_CRITICAL, "No http_access configuration found. This will block ALL traffic"); | |
528 | clientAccessCheckDone(ACCESS_DENIED); | |
529 | } | |
edce4d98 | 530 | } |
531 | ||
533493da AJ |
532 | /** |
533 | * Identical in operation to clientAccessCheck() but performed later using different configured ACL list. | |
534 | * The default here is to allow all. Since the earlier http_access should do a default deny all. | |
535 | * This check is just for a last-minute denial based on adapted request headers. | |
536 | */ | |
537 | void | |
538 | ClientRequestContext::clientAccessCheck2() | |
539 | { | |
540 | if (Config.accessList.adapted_http) { | |
541 | acl_checklist = clientAclChecklistCreate(Config.accessList.adapted_http, http); | |
542 | acl_checklist->nonBlockingCheck(clientAccessCheckDoneWrapper, this); | |
543 | } else { | |
544 | debugs(85, 2, HERE << "No adapted_http_access configuration."); | |
545 | clientAccessCheckDone(ACCESS_ALLOWED); | |
546 | } | |
547 | } | |
548 | ||
edce4d98 | 549 | void |
de31d06f | 550 | clientAccessCheckDoneWrapper(int answer, void *data) |
edce4d98 | 551 | { |
de31d06f | 552 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; |
fbade053 | 553 | |
de31d06f | 554 | if (!calloutContext->httpStateIsValid()) |
62e76326 | 555 | return; |
62e76326 | 556 | |
de31d06f | 557 | calloutContext->clientAccessCheckDone(answer); |
558 | } | |
559 | ||
560 | void | |
561 | ClientRequestContext::clientAccessCheckDone(int answer) | |
562 | { | |
563 | acl_checklist = NULL; | |
edce4d98 | 564 | err_type page_id; |
565 | http_status status; | |
26ac0430 AJ |
566 | debugs(85, 2, "The request " << |
567 | RequestMethodStr(http->request->method) << " " << | |
568 | http->uri << " is " << | |
569 | (answer == ACCESS_ALLOWED ? "ALLOWED" : "DENIED") << | |
570 | ", because it matched '" << | |
571 | (AclMatchedName ? AclMatchedName : "NO ACL's") << "'" ); | |
f5691f9c | 572 | char const *proxy_auth_msg = "<null>"; |
573 | ||
94a396a3 | 574 | if (http->getConn() != NULL && http->getConn()->auth_user_request != NULL) |
f5691f9c | 575 | proxy_auth_msg = http->getConn()->auth_user_request->denyMessage("<null>"); |
576 | else if (http->request->auth_user_request != NULL) | |
577 | proxy_auth_msg = http->request->auth_user_request->denyMessage("<null>"); | |
62e76326 | 578 | |
de31d06f | 579 | if (answer != ACCESS_ALLOWED) { |
62e76326 | 580 | /* Send an error */ |
9ce7856a | 581 | int require_auth = (answer == ACCESS_REQ_PROXY_AUTH || aclIsProxyAuth(AclMatchedName)); |
bf8fe701 | 582 | debugs(85, 5, "Access Denied: " << http->uri); |
583 | debugs(85, 5, "AclMatchedName = " << (AclMatchedName ? AclMatchedName : "<null>")); | |
9ce7856a | 584 | |
585 | if (require_auth) | |
bf8fe701 | 586 | debugs(33, 5, "Proxy Auth Message = " << (proxy_auth_msg ? proxy_auth_msg : "<null>")); |
9ce7856a | 587 | |
62e76326 | 588 | /* |
589 | * NOTE: get page_id here, based on AclMatchedName because if | |
590 | * USE_DELAY_POOLS is enabled, then AclMatchedName gets clobbered in | |
591 | * the clientCreateStoreEntry() call just below. Pedro Ribeiro | |
592 | * <pribeiro@isel.pt> | |
593 | */ | |
9ce7856a | 594 | page_id = aclGetDenyInfoPage(&Config.denyInfoList, AclMatchedName, answer != ACCESS_REQ_PROXY_AUTH); |
595 | ||
62e76326 | 596 | http->logType = LOG_TCP_DENIED; |
597 | ||
9ce7856a | 598 | if (require_auth) { |
62e76326 | 599 | if (!http->flags.accel) { |
600 | /* Proxy authorisation needed */ | |
601 | status = HTTP_PROXY_AUTHENTICATION_REQUIRED; | |
602 | } else { | |
603 | /* WWW authorisation needed */ | |
604 | status = HTTP_UNAUTHORIZED; | |
605 | } | |
606 | ||
607 | if (page_id == ERR_NONE) | |
608 | page_id = ERR_CACHE_ACCESS_DENIED; | |
609 | } else { | |
610 | status = HTTP_FORBIDDEN; | |
611 | ||
612 | if (page_id == ERR_NONE) | |
613 | page_id = ERR_ACCESS_DENIED; | |
614 | } | |
615 | ||
de31d06f | 616 | clientStreamNode *node = (clientStreamNode *)http->client_stream.tail->prev->data; |
0655fa4d | 617 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
618 | assert (repContext); | |
b7ac5457 | 619 | Ip::Address tmpnoaddr; |
26ac0430 | 620 | tmpnoaddr.SetNoAddr(); |
0655fa4d | 621 | repContext->setReplyToError(page_id, status, |
622 | http->request->method, NULL, | |
cc192b50 | 623 | http->getConn() != NULL ? http->getConn()->peer : tmpnoaddr, |
624 | http->request, | |
625 | NULL, | |
a33a428a | 626 | http->getConn() != NULL && http->getConn()->auth_user_request != NULL ? |
cc192b50 | 627 | http->getConn()->auth_user_request : http->request->auth_user_request); |
628 | ||
62e76326 | 629 | node = (clientStreamNode *)http->client_stream.tail->data; |
630 | clientStreamRead(node, http, node->readBuffer); | |
a546b04b | 631 | return; |
edce4d98 | 632 | } |
de31d06f | 633 | |
634 | /* ACCESS_ALLOWED continues here ... */ | |
635 | safe_free(http->uri); | |
636 | ||
637 | http->uri = xstrdup(urlCanonical(http->request)); | |
638 | ||
639 | http->doCallouts(); | |
640 | } | |
641 | ||
a83c6ed6 | 642 | #if USE_ADAPTATION |
de31d06f | 643 | static void |
a22e6cd3 | 644 | adaptationAclCheckDoneWrapper(Adaptation::ServiceGroupPointer g, void *data) |
de31d06f | 645 | { |
646 | ClientRequestContext *calloutContext = (ClientRequestContext *)data; | |
647 | ||
648 | if (!calloutContext->httpStateIsValid()) | |
649 | return; | |
650 | ||
a22e6cd3 | 651 | calloutContext->adaptationAclCheckDone(g); |
de31d06f | 652 | } |
653 | ||
654 | void | |
a22e6cd3 | 655 | ClientRequestContext::adaptationAclCheckDone(Adaptation::ServiceGroupPointer g) |
de31d06f | 656 | { |
a83c6ed6 | 657 | debugs(93,3,HERE << this << " adaptationAclCheckDone called"); |
6ec67de9 | 658 | assert(http); |
659 | ||
e1381638 | 660 | #if ICAP_CLIENT |
3ff65596 | 661 | Adaptation::Icap::History::Pointer ih = http->request->icapHistory(); |
e1381638 AJ |
662 | if (ih != NULL) { |
663 | if (http->getConn() != NULL) { | |
3ff65596 | 664 | ih->rfc931 = http->getConn()->rfc931; |
e1381638 | 665 | #if USE_SSL |
3ff65596 | 666 | ih->ssluser = sslGetUserEmail(fd_table[http->getConn()->fd].ssl); |
e1381638 | 667 | #endif |
3ff65596 AR |
668 | } |
669 | ih->log_uri = http->log_uri; | |
670 | ih->req_sz = http->req_sz; | |
671 | } | |
672 | #endif | |
673 | ||
a22e6cd3 AR |
674 | if (!g) { |
675 | debugs(85,3, HERE << "no adaptation needed"); | |
5f8252d2 | 676 | http->doCallouts(); |
677 | return; | |
678 | } | |
de31d06f | 679 | |
a22e6cd3 | 680 | http->startAdaptation(g); |
edce4d98 | 681 | } |
682 | ||
de31d06f | 683 | #endif |
684 | ||
14cc8559 | 685 | static void |
686 | clientRedirectAccessCheckDone(int answer, void *data) | |
687 | { | |
688 | ClientRequestContext *context = (ClientRequestContext *)data; | |
59a1efb2 | 689 | ClientHttpRequest *http = context->http; |
14cc8559 | 690 | context->acl_checklist = NULL; |
691 | ||
692 | if (answer == ACCESS_ALLOWED) | |
de31d06f | 693 | redirectStart(http, clientRedirectDoneWrapper, context); |
14cc8559 | 694 | else |
de31d06f | 695 | context->clientRedirectDone(NULL); |
14cc8559 | 696 | } |
697 | ||
de31d06f | 698 | void |
699 | ClientRequestContext::clientRedirectStart() | |
14cc8559 | 700 | { |
bf8fe701 | 701 | debugs(33, 5, "clientRedirectStart: '" << http->uri << "'"); |
14cc8559 | 702 | |
14cc8559 | 703 | if (Config.accessList.redirector) { |
de31d06f | 704 | acl_checklist = clientAclChecklistCreate(Config.accessList.redirector, http); |
705 | acl_checklist->nonBlockingCheck(clientRedirectAccessCheckDone, this); | |
14cc8559 | 706 | } else |
de31d06f | 707 | redirectStart(http, clientRedirectDoneWrapper, this); |
14cc8559 | 708 | } |
709 | ||
edce4d98 | 710 | static int |
59a1efb2 | 711 | clientHierarchical(ClientHttpRequest * http) |
edce4d98 | 712 | { |
713 | const char *url = http->uri; | |
190154cf | 714 | HttpRequest *request = http->request; |
60745f24 | 715 | HttpRequestMethod method = request->method; |
edce4d98 | 716 | const wordlist *p = NULL; |
717 | ||
69660be0 | 718 | /* |
719 | * IMS needs a private key, so we can use the hierarchy for IMS only if our | |
720 | * neighbors support private keys | |
721 | */ | |
62e76326 | 722 | |
edce4d98 | 723 | if (request->flags.ims && !neighbors_do_private_keys) |
62e76326 | 724 | return 0; |
725 | ||
69660be0 | 726 | /* |
727 | * This is incorrect: authenticating requests can be sent via a hierarchy | |
06b97e72 | 728 | * (they can even be cached if the correct headers are set on the reply) |
edce4d98 | 729 | */ |
730 | if (request->flags.auth) | |
62e76326 | 731 | return 0; |
732 | ||
edce4d98 | 733 | if (method == METHOD_TRACE) |
62e76326 | 734 | return 1; |
735 | ||
edce4d98 | 736 | if (method != METHOD_GET) |
62e76326 | 737 | return 0; |
738 | ||
edce4d98 | 739 | /* scan hierarchy_stoplist */ |
740 | for (p = Config.hierarchy_stoplist; p; p = p->next) | |
62e76326 | 741 | if (strstr(url, p->key)) |
742 | return 0; | |
743 | ||
edce4d98 | 744 | if (request->flags.loopdetect) |
62e76326 | 745 | return 0; |
746 | ||
edce4d98 | 747 | if (request->protocol == PROTO_HTTP) |
62e76326 | 748 | return httpCachable(method); |
749 | ||
edce4d98 | 750 | if (request->protocol == PROTO_GOPHER) |
62e76326 | 751 | return gopherCachable(request); |
752 | ||
edce4d98 | 753 | if (request->protocol == PROTO_CACHEOBJ) |
62e76326 | 754 | return 0; |
755 | ||
edce4d98 | 756 | return 1; |
757 | } | |
758 | ||
759 | ||
46a1f562 HN |
760 | static void |
761 | clientCheckPinning(ClientHttpRequest * http) | |
762 | { | |
763 | HttpRequest *request = http->request; | |
764 | HttpHeader *req_hdr = &request->header; | |
765 | ConnStateData *http_conn = http->getConn(); | |
766 | ||
767 | /* Internal requests such as those from ESI includes may be without | |
768 | * a client connection | |
769 | */ | |
770 | if (!http_conn) | |
f54f527e | 771 | return; |
46a1f562 HN |
772 | |
773 | request->flags.connection_auth_disabled = http_conn->port->connection_auth_disabled; | |
774 | if (!request->flags.connection_auth_disabled) { | |
775 | if (http_conn->pinning.fd != -1) { | |
776 | if (http_conn->pinning.auth) { | |
777 | request->flags.connection_auth = 1; | |
778 | request->flags.auth = 1; | |
779 | } else { | |
780 | request->flags.connection_proxy_auth = 1; | |
781 | } | |
782 | request->setPinnedConnection(http_conn); | |
783 | } | |
784 | } | |
785 | ||
786 | /* check if connection auth is used, and flag as candidate for pinning | |
787 | * in such case. | |
788 | * Note: we may need to set flags.connection_auth even if the connection | |
789 | * is already pinned if it was pinned earlier due to proxy auth | |
790 | */ | |
791 | if (!request->flags.connection_auth) { | |
792 | if (req_hdr->has(HDR_AUTHORIZATION) || req_hdr->has(HDR_PROXY_AUTHORIZATION)) { | |
793 | HttpHeaderPos pos = HttpHeaderInitPos; | |
794 | HttpHeaderEntry *e; | |
795 | int may_pin = 0; | |
796 | while ((e = req_hdr->getEntry(&pos))) { | |
797 | if (e->id == HDR_AUTHORIZATION || e->id == HDR_PROXY_AUTHORIZATION) { | |
798 | const char *value = e->value.rawBuf(); | |
799 | if (strncasecmp(value, "NTLM ", 5) == 0 | |
800 | || | |
801 | strncasecmp(value, "Negotiate ", 10) == 0 | |
802 | || | |
803 | strncasecmp(value, "Kerberos ", 9) == 0) { | |
804 | if (e->id == HDR_AUTHORIZATION) { | |
805 | request->flags.connection_auth = 1; | |
806 | may_pin = 1; | |
807 | } else { | |
808 | request->flags.connection_proxy_auth = 1; | |
809 | may_pin = 1; | |
810 | } | |
811 | } | |
812 | } | |
813 | } | |
814 | if (may_pin && !request->pinnedConnection()) { | |
815 | request->setPinnedConnection(http->getConn()); | |
816 | } | |
817 | } | |
818 | } | |
819 | } | |
820 | ||
edce4d98 | 821 | static void |
59a1efb2 | 822 | clientInterpretRequestHeaders(ClientHttpRequest * http) |
edce4d98 | 823 | { |
190154cf | 824 | HttpRequest *request = http->request; |
0ef77270 | 825 | HttpHeader *req_hdr = &request->header; |
edce4d98 | 826 | int no_cache = 0; |
edce4d98 | 827 | const char *str; |
62e76326 | 828 | |
edce4d98 | 829 | request->imslen = -1; |
a9925b40 | 830 | request->ims = req_hdr->getTime(HDR_IF_MODIFIED_SINCE); |
62e76326 | 831 | |
edce4d98 | 832 | if (request->ims > 0) |
62e76326 | 833 | request->flags.ims = 1; |
834 | ||
432bc83c HN |
835 | if (!request->flags.ignore_cc) { |
836 | if (req_hdr->has(HDR_PRAGMA)) { | |
837 | String s = req_hdr->getList(HDR_PRAGMA); | |
62e76326 | 838 | |
432bc83c HN |
839 | if (strListIsMember(&s, "no-cache", ',')) |
840 | no_cache++; | |
30abd221 | 841 | |
432bc83c HN |
842 | s.clean(); |
843 | } | |
62e76326 | 844 | |
432bc83c HN |
845 | if (request->cache_control) |
846 | if (EBIT_TEST(request->cache_control->mask, CC_NO_CACHE)) | |
847 | no_cache++; | |
62e76326 | 848 | |
432bc83c HN |
849 | /* |
850 | * Work around for supporting the Reload button in IE browsers when Squid | |
851 | * is used as an accelerator or transparent proxy, by turning accelerated | |
852 | * IMS request to no-cache requests. Now knows about IE 5.5 fix (is | |
853 | * actually only fixed in SP1, but we can't tell whether we are talking to | |
854 | * SP1 or not so all 5.5 versions are treated 'normally'). | |
855 | */ | |
856 | if (Config.onoff.ie_refresh) { | |
857 | if (http->flags.accel && request->flags.ims) { | |
858 | if ((str = req_hdr->getStr(HDR_USER_AGENT))) { | |
859 | if (strstr(str, "MSIE 5.01") != NULL) | |
860 | no_cache++; | |
861 | else if (strstr(str, "MSIE 5.0") != NULL) | |
862 | no_cache++; | |
863 | else if (strstr(str, "MSIE 4.") != NULL) | |
864 | no_cache++; | |
865 | else if (strstr(str, "MSIE 3.") != NULL) | |
866 | no_cache++; | |
867 | } | |
62e76326 | 868 | } |
869 | } | |
edce4d98 | 870 | } |
914b89a2 | 871 | |
872 | if (request->method == METHOD_OTHER) { | |
26ac0430 | 873 | no_cache++; |
60745f24 | 874 | } |
62e76326 | 875 | |
edce4d98 | 876 | if (no_cache) { |
626096be | 877 | #if USE_HTTP_VIOLATIONS |
62e76326 | 878 | |
879 | if (Config.onoff.reload_into_ims) | |
880 | request->flags.nocache_hack = 1; | |
881 | else if (refresh_nocache_hack) | |
882 | request->flags.nocache_hack = 1; | |
883 | else | |
edce4d98 | 884 | #endif |
62e76326 | 885 | |
886 | request->flags.nocache = 1; | |
edce4d98 | 887 | } |
62e76326 | 888 | |
0ef77270 | 889 | /* ignore range header in non-GETs or non-HEADs */ |
890 | if (request->method == METHOD_GET || request->method == METHOD_HEAD) { | |
56713d9a AR |
891 | // XXX: initialize if we got here without HttpRequest::parseHeader() |
892 | if (!request->range) | |
893 | request->range = req_hdr->getRange(); | |
62e76326 | 894 | |
895 | if (request->range) { | |
896 | request->flags.range = 1; | |
897 | clientStreamNode *node = (clientStreamNode *)http->client_stream.tail->data; | |
898 | /* XXX: This is suboptimal. We should give the stream the range set, | |
899 | * and thereby let the top of the stream set the offset when the | |
26ac0430 | 900 | * size becomes known. As it is, we will end up requesting from 0 |
62e76326 | 901 | * for evey -X range specification. |
902 | * RBC - this may be somewhat wrong. We should probably set the range | |
903 | * iter up at this point. | |
904 | */ | |
905 | node->readBuffer.offset = request->range->lowestOffset(0); | |
906 | http->range_iter.pos = request->range->begin(); | |
907 | http->range_iter.valid = true; | |
908 | } | |
edce4d98 | 909 | } |
62e76326 | 910 | |
0ef77270 | 911 | /* Only HEAD and GET requests permit a Range or Request-Range header. |
912 | * If these headers appear on any other type of request, delete them now. | |
913 | */ | |
914 | else { | |
915 | req_hdr->delById(HDR_RANGE); | |
916 | req_hdr->delById(HDR_REQUEST_RANGE); | |
56713d9a | 917 | delete request->range; |
0ef77270 | 918 | request->range = NULL; |
919 | } | |
920 | ||
a9925b40 | 921 | if (req_hdr->has(HDR_AUTHORIZATION)) |
62e76326 | 922 | request->flags.auth = 1; |
923 | ||
46a1f562 | 924 | clientCheckPinning(http); |
d67acb4e | 925 | |
edce4d98 | 926 | if (request->login[0] != '\0') |
62e76326 | 927 | request->flags.auth = 1; |
928 | ||
a9925b40 | 929 | if (req_hdr->has(HDR_VIA)) { |
30abd221 | 930 | String s = req_hdr->getList(HDR_VIA); |
62e76326 | 931 | /* |
932 | * ThisCache cannot be a member of Via header, "1.0 ThisCache" can. | |
933 | * Note ThisCache2 has a space prepended to the hostname so we don't | |
934 | * accidentally match super-domains. | |
935 | */ | |
936 | ||
937 | if (strListIsSubstr(&s, ThisCache2, ',')) { | |
938 | debugObj(33, 1, "WARNING: Forwarding loop detected for:\n", | |
939 | request, (ObjPackMethod) & httpRequestPack); | |
940 | request->flags.loopdetect = 1; | |
941 | } | |
942 | ||
21f6708d | 943 | #if USE_FORW_VIA_DB |
bb790702 | 944 | fvdbCountVia(s.termedBuf()); |
62e76326 | 945 | |
edce4d98 | 946 | #endif |
62e76326 | 947 | |
30abd221 | 948 | s.clean(); |
edce4d98 | 949 | } |
62e76326 | 950 | |
26ac0430 AJ |
951 | /** |
952 | \todo --enable-useragent-log and --enable-referer-log. We should | |
953 | probably drop those two as the custom log formats accomplish pretty much the same thing.. | |
954 | */ | |
edce4d98 | 955 | #if USE_USERAGENT_LOG |
a9925b40 | 956 | if ((str = req_hdr->getStr(HDR_USER_AGENT))) |
b4306cba | 957 | logUserAgent(fqdnFromAddr(http->getConn()->log_addr), str); |
62e76326 | 958 | |
edce4d98 | 959 | #endif |
960 | #if USE_REFERER_LOG | |
62e76326 | 961 | |
a9925b40 | 962 | if ((str = req_hdr->getStr(HDR_REFERER))) |
b4306cba | 963 | logReferer(fqdnFromAddr(http->getConn()->log_addr), str, http->log_uri); |
62e76326 | 964 | |
edce4d98 | 965 | #endif |
21f6708d | 966 | #if USE_FORW_VIA_DB |
62e76326 | 967 | |
a9925b40 | 968 | if (req_hdr->has(HDR_X_FORWARDED_FOR)) { |
30abd221 | 969 | String s = req_hdr->getList(HDR_X_FORWARDED_FOR); |
bb790702 | 970 | fvdbCountForw(s.termedBuf()); |
30abd221 | 971 | s.clean(); |
edce4d98 | 972 | } |
62e76326 | 973 | |
edce4d98 | 974 | #endif |
fc90edc3 AJ |
975 | if (request->method == METHOD_TRACE || request->method == METHOD_OPTIONS) { |
976 | request->max_forwards = req_hdr->getInt64(HDR_MAX_FORWARDS); | |
edce4d98 | 977 | } |
62e76326 | 978 | |
610ee341 | 979 | request->flags.cachable = http->request->cacheable(); |
62e76326 | 980 | |
edce4d98 | 981 | if (clientHierarchical(http)) |
62e76326 | 982 | request->flags.hierarchical = 1; |
983 | ||
bf8fe701 | 984 | debugs(85, 5, "clientInterpretRequestHeaders: REQ_NOCACHE = " << |
985 | (request->flags.nocache ? "SET" : "NOT SET")); | |
986 | debugs(85, 5, "clientInterpretRequestHeaders: REQ_CACHABLE = " << | |
987 | (request->flags.cachable ? "SET" : "NOT SET")); | |
988 | debugs(85, 5, "clientInterpretRequestHeaders: REQ_HIERARCHICAL = " << | |
989 | (request->flags.hierarchical ? "SET" : "NOT SET")); | |
62e76326 | 990 | |
edce4d98 | 991 | } |
992 | ||
993 | void | |
de31d06f | 994 | clientRedirectDoneWrapper(void *data, char *result) |
edce4d98 | 995 | { |
de31d06f | 996 | ClientRequestContext *calloutContext = (ClientRequestContext *)data; |
db02222f | 997 | |
de31d06f | 998 | if (!calloutContext->httpStateIsValid()) |
62e76326 | 999 | return; |
62e76326 | 1000 | |
de31d06f | 1001 | calloutContext->clientRedirectDone(result); |
1002 | } | |
1003 | ||
1004 | void | |
1005 | ClientRequestContext::clientRedirectDone(char *result) | |
1006 | { | |
190154cf | 1007 | HttpRequest *new_request = NULL; |
1008 | HttpRequest *old_request = http->request; | |
bf8fe701 | 1009 | debugs(85, 5, "clientRedirectDone: '" << http->uri << "' result=" << (result ? result : "NULL")); |
de31d06f | 1010 | assert(redirect_state == REDIRECT_PENDING); |
1011 | redirect_state = REDIRECT_DONE; | |
62e76326 | 1012 | |
edce4d98 | 1013 | if (result) { |
62e76326 | 1014 | http_status status = (http_status) atoi(result); |
1015 | ||
1016 | if (status == HTTP_MOVED_PERMANENTLY | |
1017 | || status == HTTP_MOVED_TEMPORARILY | |
1018 | || status == HTTP_SEE_OTHER | |
1019 | || status == HTTP_TEMPORARY_REDIRECT) { | |
1020 | char *t = result; | |
1021 | ||
1022 | if ((t = strchr(result, ':')) != NULL) { | |
1023 | http->redirect.status = status; | |
1024 | http->redirect.location = xstrdup(t + 1); | |
1025 | } else { | |
bf8fe701 | 1026 | debugs(85, 1, "clientRedirectDone: bad input: " << result); |
62e76326 | 1027 | } |
2baf58c3 | 1028 | } else if (strcmp(result, http->uri)) |
c21ad0f5 | 1029 | new_request = HttpRequest::CreateFromUrlAndMethod(result, old_request->method); |
edce4d98 | 1030 | } |
62e76326 | 1031 | |
edce4d98 | 1032 | if (new_request) { |
62e76326 | 1033 | safe_free(http->uri); |
1034 | http->uri = xstrdup(urlCanonical(new_request)); | |
1035 | new_request->http_ver = old_request->http_ver; | |
a9925b40 | 1036 | new_request->header.append(&old_request->header); |
62e76326 | 1037 | new_request->client_addr = old_request->client_addr; |
3d674977 AJ |
1038 | #if FOLLOW_X_FORWARDED_FOR |
1039 | new_request->indirect_client_addr = old_request->indirect_client_addr; | |
1040 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
62e76326 | 1041 | new_request->my_addr = old_request->my_addr; |
62e76326 | 1042 | new_request->flags = old_request->flags; |
3c1f01bc | 1043 | new_request->flags.redirected = 1; |
a33a428a | 1044 | new_request->auth_user_request = old_request->auth_user_request; |
62e76326 | 1045 | |
5f8252d2 | 1046 | if (old_request->body_pipe != NULL) { |
1047 | new_request->body_pipe = old_request->body_pipe; | |
1048 | old_request->body_pipe = NULL; | |
1049 | debugs(0,0,HERE << "redirecting body_pipe " << new_request->body_pipe << " from request " << old_request << " to " << new_request); | |
62e76326 | 1050 | } |
1051 | ||
1052 | new_request->content_length = old_request->content_length; | |
abb929f0 | 1053 | new_request->extacl_user = old_request->extacl_user; |
1054 | new_request->extacl_passwd = old_request->extacl_passwd; | |
62e76326 | 1055 | new_request->flags.proxy_keepalive = old_request->flags.proxy_keepalive; |
6dd9f4bd | 1056 | HTTPMSGUNLOCK(old_request); |
1057 | http->request = HTTPMSGLOCK(new_request); | |
edce4d98 | 1058 | } |
62e76326 | 1059 | |
edce4d98 | 1060 | /* FIXME PIPELINE: This is innacurate during pipelining */ |
62e76326 | 1061 | |
5f8252d2 | 1062 | if (http->getConn() != NULL) |
98242069 | 1063 | fd_note(http->getConn()->fd, http->uri); |
62e76326 | 1064 | |
c8be6d7b | 1065 | assert(http->uri); |
62e76326 | 1066 | |
de31d06f | 1067 | http->doCallouts(); |
edce4d98 | 1068 | } |
1069 | ||
b50e327b AJ |
1070 | /** Test cache allow/deny configuration |
1071 | * Sets flags.cachable=1 if caching is not denied. | |
1072 | */ | |
edce4d98 | 1073 | void |
8e2745f4 | 1074 | ClientRequestContext::checkNoCache() |
edce4d98 | 1075 | { |
b50e327b AJ |
1076 | if (Config.accessList.noCache) { |
1077 | acl_checklist = clientAclChecklistCreate(Config.accessList.noCache, http); | |
1078 | acl_checklist->nonBlockingCheck(checkNoCacheDoneWrapper, this); | |
1079 | } else { | |
1080 | /* unless otherwise specified, we try to cache. */ | |
1081 | checkNoCacheDone(1); | |
1082 | } | |
edce4d98 | 1083 | } |
1084 | ||
de31d06f | 1085 | static void |
1086 | checkNoCacheDoneWrapper(int answer, void *data) | |
edce4d98 | 1087 | { |
de31d06f | 1088 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; |
e4a67a80 | 1089 | |
de31d06f | 1090 | if (!calloutContext->httpStateIsValid()) |
1091 | return; | |
1092 | ||
1093 | calloutContext->checkNoCacheDone(answer); | |
8e2745f4 | 1094 | } |
4fb35c3c | 1095 | |
8e2745f4 | 1096 | void |
1097 | ClientRequestContext::checkNoCacheDone(int answer) | |
62e76326 | 1098 | { |
8e2745f4 | 1099 | acl_checklist = NULL; |
de31d06f | 1100 | http->request->flags.cachable = answer; |
1101 | http->doCallouts(); | |
edce4d98 | 1102 | } |
1103 | ||
69660be0 | 1104 | /* |
1105 | * Identify requests that do not go through the store and client side stream | |
1106 | * and forward them to the appropriate location. All other requests, request | |
1107 | * them. | |
edce4d98 | 1108 | */ |
1109 | void | |
8e2745f4 | 1110 | ClientHttpRequest::processRequest() |
edce4d98 | 1111 | { |
60745f24 | 1112 | debugs(85, 4, "clientProcessRequest: " << RequestMethodStr(request->method) << " '" << uri << "'"); |
62e76326 | 1113 | |
3712be3f | 1114 | #if USE_SSL |
1115 | if (request->method == METHOD_CONNECT && sslBumpNeeded()) { | |
1116 | sslBumpStart(); | |
1117 | return; | |
1118 | } | |
1119 | #endif | |
1120 | ||
2baf58c3 | 1121 | if (request->method == METHOD_CONNECT && !redirect.status) { |
62e76326 | 1122 | logType = LOG_TCP_MISS; |
f84dd7eb | 1123 | getConn()->stopReading(); // tunnels read for themselves |
11007d4b | 1124 | tunnelStart(this, &out.size, &al.http.code); |
62e76326 | 1125 | return; |
edce4d98 | 1126 | } |
62e76326 | 1127 | |
8e2745f4 | 1128 | httpStart(); |
1129 | } | |
1130 | ||
1131 | void | |
1132 | ClientHttpRequest::httpStart() | |
1133 | { | |
559da936 | 1134 | PROF_start(httpStart); |
8e2745f4 | 1135 | logType = LOG_TAG_NONE; |
bf8fe701 | 1136 | debugs(85, 4, "ClientHttpRequest::httpStart: " << log_tags[logType] << " for '" << uri << "'"); |
1137 | ||
edce4d98 | 1138 | /* no one should have touched this */ |
8e2745f4 | 1139 | assert(out.offset == 0); |
edce4d98 | 1140 | /* Use the Stream Luke */ |
8e2745f4 | 1141 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->data; |
1142 | clientStreamRead(node, this, node->readBuffer); | |
559da936 | 1143 | PROF_stop(httpStart); |
edce4d98 | 1144 | } |
0655fa4d | 1145 | |
3712be3f | 1146 | #if USE_SSL |
1147 | ||
1148 | // determines whether we should bump the CONNECT request | |
1149 | bool | |
26ac0430 AJ |
1150 | ClientHttpRequest::sslBumpNeeded() const |
1151 | { | |
3712be3f | 1152 | if (!getConn()->port->sslBump || !Config.accessList.ssl_bump) |
1153 | return false; | |
1154 | ||
1155 | debugs(85, 5, HERE << "SslBump possible, checking ACL"); | |
1156 | ||
c0941a6a | 1157 | ACLFilledChecklist check(Config.accessList.ssl_bump, request, NULL); |
3712be3f | 1158 | check.src_addr = request->client_addr; |
26ac0430 | 1159 | check.my_addr = request->my_addr; |
26ac0430 | 1160 | return check.fastCheck() == 1; |
3712be3f | 1161 | } |
1162 | ||
1163 | // called when comm_write has completed | |
1164 | static void | |
1165 | SslBumpEstablish(int, char *, size_t, comm_err_t errflag, int, void *data) | |
1166 | { | |
1167 | ClientHttpRequest *r = static_cast<ClientHttpRequest*>(data); | |
1168 | debugs(85, 5, HERE << "responded to CONNECT: " << r << " ? " << errflag); | |
1169 | ||
1170 | assert(r && cbdataReferenceValid(r)); | |
1171 | r->sslBumpEstablish(errflag); | |
1172 | } | |
1173 | ||
1174 | void | |
1175 | ClientHttpRequest::sslBumpEstablish(comm_err_t errflag) | |
1176 | { | |
1177 | // Bail out quickly on COMM_ERR_CLOSING - close handlers will tidy up | |
1178 | if (errflag == COMM_ERR_CLOSING) | |
1179 | return; | |
1180 | ||
1181 | if (errflag) { | |
1182 | getConn()->startClosing("CONNECT response failure in SslBump"); | |
1183 | return; | |
1184 | } | |
1185 | ||
1186 | getConn()->switchToHttps(); | |
1187 | } | |
1188 | ||
1189 | void | |
1190 | ClientHttpRequest::sslBumpStart() | |
1191 | { | |
1192 | debugs(85, 5, HERE << "ClientHttpRequest::sslBumpStart"); | |
1193 | ||
1194 | // send an HTTP 200 response to kick client SSL negotiation | |
1195 | const int fd = getConn()->fd; | |
1196 | debugs(33, 7, HERE << "Confirming CONNECT tunnel on FD " << fd); | |
1197 | ||
1198 | // TODO: Unify with tunnel.cc and add a Server(?) header | |
1199 | static const char *const conn_established = | |
1200 | "HTTP/1.0 200 Connection established\r\n\r\n"; | |
1201 | comm_write(fd, conn_established, strlen(conn_established), | |
26ac0430 | 1202 | &SslBumpEstablish, this, NULL); |
3712be3f | 1203 | } |
1204 | ||
1205 | #endif | |
1206 | ||
0655fa4d | 1207 | bool |
1208 | ClientHttpRequest::gotEnough() const | |
1209 | { | |
86a2f789 | 1210 | /** TODO: should be querying the stream. */ |
7173d5b0 | 1211 | int64_t contentLength = |
06a5ae20 | 1212 | memObject()->getReply()->bodySize(request->method); |
0655fa4d | 1213 | assert(contentLength >= 0); |
1214 | ||
1215 | if (out.offset < contentLength) | |
1216 | return false; | |
1217 | ||
1218 | return true; | |
1219 | } | |
1220 | ||
86a2f789 | 1221 | void |
1222 | ClientHttpRequest::storeEntry(StoreEntry *newEntry) | |
1223 | { | |
1224 | entry_ = newEntry; | |
1225 | } | |
1226 | ||
0976f8db | 1227 | void |
1228 | ClientHttpRequest::loggingEntry(StoreEntry *newEntry) | |
1229 | { | |
1230 | if (loggingEntry_) | |
97b5e68f | 1231 | loggingEntry_->unlock(); |
0976f8db | 1232 | |
1233 | loggingEntry_ = newEntry; | |
1234 | ||
1235 | if (loggingEntry_) | |
3d0ac046 | 1236 | loggingEntry_->lock(); |
0976f8db | 1237 | } |
86a2f789 | 1238 | |
de31d06f | 1239 | /* |
1240 | * doCallouts() - This function controls the order of "callout" | |
1241 | * executions, including non-blocking access control checks, the | |
1242 | * redirector, and ICAP. Previously, these callouts were chained | |
1243 | * together such that "clientAccessCheckDone()" would call | |
1244 | * "clientRedirectStart()" and so on. | |
1245 | * | |
1246 | * The ClientRequestContext (aka calloutContext) class holds certain | |
1247 | * state data for the callout/callback operations. Previously | |
1248 | * ClientHttpRequest would sort of hand off control to ClientRequestContext | |
1249 | * for a short time. ClientRequestContext would then delete itself | |
1250 | * and pass control back to ClientHttpRequest when all callouts | |
1251 | * were finished. | |
1252 | * | |
1253 | * This caused some problems for ICAP because we want to make the | |
1254 | * ICAP callout after checking ACLs, but before checking the no_cache | |
1255 | * list. We can't stuff the ICAP state into the ClientRequestContext | |
1256 | * class because we still need the ICAP state after ClientRequestContext | |
1257 | * goes away. | |
1258 | * | |
1259 | * Note that ClientRequestContext is created before the first call | |
1260 | * to doCallouts(). | |
1261 | * | |
1262 | * If one of the callouts notices that ClientHttpRequest is no | |
1263 | * longer valid, it should call cbdataReferenceDone() so that | |
1264 | * ClientHttpRequest's reference count goes to zero and it will get | |
1265 | * deleted. ClientHttpRequest will then delete ClientRequestContext. | |
1266 | * | |
1267 | * Note that we set the _done flags here before actually starting | |
1268 | * the callout. This is strictly for convenience. | |
1269 | */ | |
1270 | ||
057f5854 | 1271 | extern int aclMapTOS (acl_tos * head, ACLChecklist * ch); |
1272 | ||
de31d06f | 1273 | void |
1274 | ClientHttpRequest::doCallouts() | |
1275 | { | |
1276 | assert(calloutContext); | |
1277 | ||
6fca33e0 CT |
1278 | /*Save the original request for logging purposes*/ |
1279 | if (!calloutContext->http->al.request) | |
105d1937 | 1280 | calloutContext->http->al.request = HTTPMSGLOCK(request); |
6fca33e0 | 1281 | |
de31d06f | 1282 | if (!calloutContext->http_access_done) { |
3712be3f | 1283 | debugs(83, 3, HERE << "Doing calloutContext->clientAccessCheck()"); |
57abaac0 | 1284 | calloutContext->http_access_done = true; |
de31d06f | 1285 | calloutContext->clientAccessCheck(); |
1286 | return; | |
1287 | } | |
1288 | ||
a83c6ed6 | 1289 | #if USE_ADAPTATION |
abd4b611 | 1290 | if (!calloutContext->adaptation_acl_check_done) { |
a83c6ed6 | 1291 | calloutContext->adaptation_acl_check_done = true; |
abd4b611 | 1292 | if (Adaptation::AccessCheck::Start( |
26ac0430 AJ |
1293 | Adaptation::methodReqmod, Adaptation::pointPreCache, |
1294 | request, NULL, adaptationAclCheckDoneWrapper, calloutContext)) | |
abd4b611 | 1295 | return; // will call callback |
de31d06f | 1296 | } |
de31d06f | 1297 | #endif |
1298 | ||
1299 | if (!calloutContext->redirect_done) { | |
57abaac0 | 1300 | calloutContext->redirect_done = true; |
de31d06f | 1301 | assert(calloutContext->redirect_state == REDIRECT_NONE); |
1302 | ||
1303 | if (Config.Program.redirect) { | |
3712be3f | 1304 | debugs(83, 3, HERE << "Doing calloutContext->clientRedirectStart()"); |
de31d06f | 1305 | calloutContext->redirect_state = REDIRECT_PENDING; |
1306 | calloutContext->clientRedirectStart(); | |
1307 | return; | |
1308 | } | |
1309 | } | |
1310 | ||
533493da AJ |
1311 | if (!calloutContext->adapted_http_access_done) { |
1312 | debugs(83, 3, HERE << "Doing calloutContext->clientAccessCheck2()"); | |
1313 | calloutContext->adapted_http_access_done = true; | |
1314 | calloutContext->clientAccessCheck2(); | |
1315 | return; | |
1316 | } | |
1317 | ||
57abaac0 | 1318 | if (!calloutContext->interpreted_req_hdrs) { |
3712be3f | 1319 | debugs(83, 3, HERE << "Doing clientInterpretRequestHeaders()"); |
57abaac0 | 1320 | calloutContext->interpreted_req_hdrs = 1; |
1321 | clientInterpretRequestHeaders(this); | |
1322 | } | |
1323 | ||
de31d06f | 1324 | if (!calloutContext->no_cache_done) { |
57abaac0 | 1325 | calloutContext->no_cache_done = true; |
de31d06f | 1326 | |
1327 | if (Config.accessList.noCache && request->flags.cachable) { | |
3712be3f | 1328 | debugs(83, 3, HERE << "Doing calloutContext->checkNoCache()"); |
de31d06f | 1329 | calloutContext->checkNoCache(); |
1330 | return; | |
1331 | } | |
1332 | } | |
1333 | ||
057f5854 | 1334 | if (!calloutContext->clientside_tos_done) { |
1335 | calloutContext->clientside_tos_done = true; | |
3712be3f | 1336 | if (getConn() != NULL) { |
c0941a6a | 1337 | ACLFilledChecklist ch(NULL, request, NULL); |
057f5854 | 1338 | ch.src_addr = request->client_addr; |
1339 | ch.my_addr = request->my_addr; | |
3712be3f | 1340 | int tos = aclMapTOS(Config.accessList.clientside_tos, &ch); |
1341 | if (tos) | |
1342 | comm_set_tos(getConn()->fd, tos); | |
1343 | } | |
057f5854 | 1344 | } |
1345 | ||
de31d06f | 1346 | cbdataReferenceDone(calloutContext->http); |
1347 | delete calloutContext; | |
1348 | calloutContext = NULL; | |
de31d06f | 1349 | #if HEADERS_LOG |
1350 | ||
1351 | headersLog(0, 1, request->method, request); | |
1352 | #endif | |
1353 | ||
58d7150d | 1354 | debugs(83, 3, HERE << "calling processRequest()"); |
de31d06f | 1355 | processRequest(); |
3ff65596 AR |
1356 | |
1357 | #if ICAP_CLIENT | |
1358 | Adaptation::Icap::History::Pointer ih = request->icapHistory(); | |
1359 | if (ih != NULL) | |
1360 | ih->logType = logType; | |
1361 | #endif | |
de31d06f | 1362 | } |
1363 | ||
32d002cb | 1364 | #if !_USE_INLINE_ |
86a2f789 | 1365 | #include "client_side_request.cci" |
1366 | #endif | |
de31d06f | 1367 | |
a83c6ed6 | 1368 | #if USE_ADAPTATION |
a22e6cd3 AR |
1369 | /// Initiate an asynchronous adaptation transaction which will call us back. |
1370 | void | |
1371 | ClientHttpRequest::startAdaptation(const Adaptation::ServiceGroupPointer &g) | |
3b299123 | 1372 | { |
a22e6cd3 | 1373 | debugs(85, 3, HERE << "adaptation needed for " << this); |
a83c6ed6 AR |
1374 | assert(!virginHeadSource); |
1375 | assert(!adaptedBodySource); | |
a22e6cd3 | 1376 | virginHeadSource = initiateAdaptation( |
e1381638 | 1377 | new Adaptation::Iterator(this, request, NULL, g)); |
a83c6ed6 | 1378 | |
e1381638 | 1379 | // we could try to guess whether we can bypass this adaptation |
a22e6cd3 AR |
1380 | // initiation failure, but it should not really happen |
1381 | assert(virginHeadSource != NULL); // Must, really | |
de31d06f | 1382 | } |
1383 | ||
1384 | void | |
a83c6ed6 | 1385 | ClientHttpRequest::noteAdaptationAnswer(HttpMsg *msg) |
de31d06f | 1386 | { |
de31d06f | 1387 | assert(cbdataReferenceValid(this)); // indicates bug |
5f8252d2 | 1388 | assert(msg); |
1389 | ||
b044675d | 1390 | if (HttpRequest *new_req = dynamic_cast<HttpRequest*>(msg)) { |
200ac359 | 1391 | /* |
5f8252d2 | 1392 | * Replace the old request with the new request. |
200ac359 | 1393 | */ |
6dd9f4bd | 1394 | HTTPMSGUNLOCK(request); |
1395 | request = HTTPMSGLOCK(new_req); | |
200ac359 | 1396 | /* |
1397 | * Store the new URI for logging | |
1398 | */ | |
1399 | xfree(uri); | |
1400 | uri = xstrdup(urlCanonical(request)); | |
1401 | setLogUri(this, urlCanonicalClean(request)); | |
914b89a2 | 1402 | assert(request->method.id()); |
b044675d | 1403 | } else if (HttpReply *new_rep = dynamic_cast<HttpReply*>(msg)) { |
1404 | debugs(85,3,HERE << "REQMOD reply is HTTP reply"); | |
1405 | ||
5f8252d2 | 1406 | // subscribe to receive reply body |
1407 | if (new_rep->body_pipe != NULL) { | |
a83c6ed6 | 1408 | adaptedBodySource = new_rep->body_pipe; |
d222a56c HN |
1409 | int consumer_ok = adaptedBodySource->setConsumerIfNotLate(this); |
1410 | assert(consumer_ok); | |
5f8252d2 | 1411 | } |
1412 | ||
b044675d | 1413 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->prev->data; |
1414 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1415 | repContext->createStoreEntry(request->method, request->flags); | |
1416 | ||
1417 | EBIT_CLR(storeEntry()->flags, ENTRY_FWD_HDR_WAIT); | |
1418 | request_satisfaction_mode = true; | |
1419 | request_satisfaction_offset = 0; | |
1420 | storeEntry()->replaceHttpReply(new_rep); | |
97ae5196 | 1421 | storeEntry()->timestampsSet(); |
cb4c4288 | 1422 | |
a83c6ed6 | 1423 | if (!adaptedBodySource) // no body |
cb4c4288 | 1424 | storeEntry()->complete(); |
b044675d | 1425 | clientGetMoreData(node, this); |
200ac359 | 1426 | } |
de31d06f | 1427 | |
5f8252d2 | 1428 | // we are done with getting headers (but may be receiving body) |
a83c6ed6 | 1429 | clearAdaptation(virginHeadSource); |
5f8252d2 | 1430 | |
b044675d | 1431 | if (!request_satisfaction_mode) |
1432 | doCallouts(); | |
de31d06f | 1433 | } |
1434 | ||
1435 | void | |
a83c6ed6 | 1436 | ClientHttpRequest::noteAdaptationQueryAbort(bool final) |
de31d06f | 1437 | { |
a83c6ed6 AR |
1438 | clearAdaptation(virginHeadSource); |
1439 | assert(!adaptedBodySource); | |
1440 | handleAdaptationFailure(!final); | |
de31d06f | 1441 | } |
1442 | ||
1443 | void | |
1cf238db | 1444 | ClientHttpRequest::noteMoreBodyDataAvailable(BodyPipe::Pointer) |
de31d06f | 1445 | { |
5f8252d2 | 1446 | assert(request_satisfaction_mode); |
a83c6ed6 | 1447 | assert(adaptedBodySource != NULL); |
5f8252d2 | 1448 | |
4ce0e99b | 1449 | if (const size_t contentSize = adaptedBodySource->buf().contentSize()) { |
a83c6ed6 | 1450 | BodyPipeCheckout bpc(*adaptedBodySource); |
4ce0e99b | 1451 | const StoreIOBuffer ioBuf(&bpc.buf, request_satisfaction_offset); |
5f8252d2 | 1452 | storeEntry()->write(ioBuf); |
1453 | // assume can write everything | |
1454 | request_satisfaction_offset += contentSize; | |
4ce0e99b | 1455 | bpc.buf.consume(contentSize); |
5f8252d2 | 1456 | bpc.checkIn(); |
1457 | } | |
1458 | ||
a83c6ed6 | 1459 | if (adaptedBodySource->exhausted()) |
5f8252d2 | 1460 | endRequestSatisfaction(); |
1461 | // else wait for more body data | |
de31d06f | 1462 | } |
1463 | ||
1464 | void | |
1cf238db | 1465 | ClientHttpRequest::noteBodyProductionEnded(BodyPipe::Pointer) |
de31d06f | 1466 | { |
a83c6ed6 AR |
1467 | assert(!virginHeadSource); |
1468 | if (adaptedBodySource != NULL) { // did not end request satisfaction yet | |
26ac0430 | 1469 | // We do not expect more because noteMoreBodyDataAvailable always |
5f8252d2 | 1470 | // consumes everything. We do not even have a mechanism to consume |
1471 | // leftovers after noteMoreBodyDataAvailable notifications seize. | |
a83c6ed6 | 1472 | assert(adaptedBodySource->exhausted()); |
5f8252d2 | 1473 | endRequestSatisfaction(); |
1474 | } | |
1475 | } | |
3b299123 | 1476 | |
5f8252d2 | 1477 | void |
26ac0430 AJ |
1478 | ClientHttpRequest::endRequestSatisfaction() |
1479 | { | |
5f8252d2 | 1480 | debugs(85,4, HERE << this << " ends request satisfaction"); |
1481 | assert(request_satisfaction_mode); | |
a83c6ed6 | 1482 | stopConsumingFrom(adaptedBodySource); |
3b299123 | 1483 | |
5f8252d2 | 1484 | // TODO: anything else needed to end store entry formation correctly? |
1485 | storeEntry()->complete(); | |
1486 | } | |
de31d06f | 1487 | |
5f8252d2 | 1488 | void |
1cf238db | 1489 | ClientHttpRequest::noteBodyProducerAborted(BodyPipe::Pointer) |
5f8252d2 | 1490 | { |
a83c6ed6 AR |
1491 | assert(!virginHeadSource); |
1492 | stopConsumingFrom(adaptedBodySource); | |
1493 | handleAdaptationFailure(); | |
5f8252d2 | 1494 | } |
3b299123 | 1495 | |
5f8252d2 | 1496 | void |
a83c6ed6 | 1497 | ClientHttpRequest::handleAdaptationFailure(bool bypassable) |
5f8252d2 | 1498 | { |
a83c6ed6 | 1499 | debugs(85,3, HERE << "handleAdaptationFailure(" << bypassable << ")"); |
3b299123 | 1500 | |
5f8252d2 | 1501 | const bool usedStore = storeEntry() && !storeEntry()->isEmpty(); |
1502 | const bool usedPipe = request->body_pipe != NULL && | |
26ac0430 | 1503 | request->body_pipe->consumedSize() > 0; |
3b299123 | 1504 | |
9d4d7c5e | 1505 | if (bypassable && !usedStore && !usedPipe) { |
1506 | debugs(85,3, HERE << "ICAP REQMOD callout failed, bypassing: " << calloutContext); | |
5f8252d2 | 1507 | if (calloutContext) |
1508 | doCallouts(); | |
1509 | return; | |
1510 | } | |
3b299123 | 1511 | |
5f8252d2 | 1512 | debugs(85,3, HERE << "ICAP REQMOD callout failed, responding with error"); |
3b299123 | 1513 | |
5f8252d2 | 1514 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->prev->data; |
1515 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1516 | assert(repContext); | |
de31d06f | 1517 | |
26ac0430 | 1518 | // The original author of the code also wanted to pass an errno to |
5f8252d2 | 1519 | // setReplyToError, but it seems unlikely that the errno reflects the |
1520 | // true cause of the error at this point, so I did not pass it. | |
b7ac5457 | 1521 | Ip::Address noAddr; |
b70ba605 | 1522 | noAddr.SetNoAddr(); |
1cf238db | 1523 | ConnStateData * c = getConn(); |
5f8252d2 | 1524 | repContext->setReplyToError(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR, |
26ac0430 AJ |
1525 | request->method, NULL, |
1526 | (c != NULL ? c->peer : noAddr), request, NULL, | |
a33a428a | 1527 | (c != NULL && c->auth_user_request != NULL ? |
26ac0430 | 1528 | c->auth_user_request : request->auth_user_request)); |
de31d06f | 1529 | |
5f8252d2 | 1530 | node = (clientStreamNode *)client_stream.tail->data; |
1531 | clientStreamRead(node, this, node->readBuffer); | |
de31d06f | 1532 | } |
1533 | ||
1534 | #endif |