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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" | |
ec41b64c | 62 | #include "comm/Write.h" |
27bc2077 AJ |
63 | #include "compat/inet_pton.h" |
64 | #include "fde.h" | |
65 | #include "HttpReply.h" | |
66 | #include "HttpRequest.h" | |
425de4c8 | 67 | #include "ip/QosConfig.h" |
27bc2077 AJ |
68 | #include "MemObject.h" |
69 | #include "ProtoPort.h" | |
70 | #include "Store.h" | |
71 | #include "SquidTime.h" | |
72 | #include "wordlist.h" | |
64b66b76 | 73 | #include "err_detail_type.h" |
4db984be CT |
74 | #if USE_SSL |
75 | #include "ssl/support.h" | |
76 | #endif | |
3ff65596 AR |
77 | |
78 | ||
edce4d98 | 79 | #if LINGERING_CLOSE |
80 | #define comm_close comm_lingering_close | |
81 | #endif | |
82 | ||
83 | static const char *const crlf = "\r\n"; | |
84 | ||
609c620a | 85 | #if FOLLOW_X_FORWARDED_FOR |
3d674977 AJ |
86 | static void |
87 | clientFollowXForwardedForCheck(int answer, void *data); | |
609c620a | 88 | #endif /* FOLLOW_X_FORWARDED_FOR */ |
3d674977 | 89 | |
8e2745f4 | 90 | CBDATA_CLASS_INIT(ClientRequestContext); |
91 | ||
92 | void * | |
93 | ClientRequestContext::operator new (size_t size) | |
94 | { | |
95 | assert (size == sizeof(ClientRequestContext)); | |
96 | CBDATA_INIT_TYPE(ClientRequestContext); | |
97 | ClientRequestContext *result = cbdataAlloc(ClientRequestContext); | |
aa625860 | 98 | return result; |
8e2745f4 | 99 | } |
62e76326 | 100 | |
8e2745f4 | 101 | void |
102 | ClientRequestContext::operator delete (void *address) | |
103 | { | |
104 | ClientRequestContext *t = static_cast<ClientRequestContext *>(address); | |
aa625860 | 105 | cbdataFree(t); |
8e2745f4 | 106 | } |
107 | ||
edce4d98 | 108 | /* Local functions */ |
edce4d98 | 109 | /* other */ |
de31d06f | 110 | static void clientAccessCheckDoneWrapper(int, void *); |
59a1efb2 | 111 | static int clientHierarchical(ClientHttpRequest * http); |
112 | static void clientInterpretRequestHeaders(ClientHttpRequest * http); | |
de31d06f | 113 | static RH clientRedirectDoneWrapper; |
114 | static PF checkNoCacheDoneWrapper; | |
e6ccf245 | 115 | extern "C" CSR clientGetMoreData; |
116 | extern "C" CSS clientReplyStatus; | |
117 | extern "C" CSD clientReplyDetach; | |
528b2c61 | 118 | static void checkFailureRatio(err_type, hier_code); |
edce4d98 | 119 | |
8e2745f4 | 120 | ClientRequestContext::~ClientRequestContext() |
121 | { | |
de31d06f | 122 | /* |
a546b04b | 123 | * Release our "lock" on our parent, ClientHttpRequest, if we |
124 | * still have one | |
de31d06f | 125 | */ |
a546b04b | 126 | |
127 | if (http) | |
128 | cbdataReferenceDone(http); | |
62e76326 | 129 | |
5f8252d2 | 130 | debugs(85,3, HERE << this << " ClientRequestContext destructed"); |
8e2745f4 | 131 | } |
132 | ||
4e2eb5c3 | 133 | ClientRequestContext::ClientRequestContext(ClientHttpRequest *anHttp) : http(cbdataReference(anHttp)), acl_checklist (NULL), redirect_state (REDIRECT_NONE) |
edce4d98 | 134 | { |
57abaac0 | 135 | http_access_done = false; |
136 | redirect_done = false; | |
137 | no_cache_done = false; | |
138 | interpreted_req_hdrs = false; | |
0b86805b | 139 | debugs(85,3, HERE << this << " ClientRequestContext constructed"); |
edce4d98 | 140 | } |
141 | ||
528b2c61 | 142 | CBDATA_CLASS_INIT(ClientHttpRequest); |
8e2745f4 | 143 | |
528b2c61 | 144 | void * |
145 | ClientHttpRequest::operator new (size_t size) | |
146 | { | |
147 | assert (size == sizeof (ClientHttpRequest)); | |
148 | CBDATA_INIT_TYPE(ClientHttpRequest); | |
149 | ClientHttpRequest *result = cbdataAlloc(ClientHttpRequest); | |
aa625860 | 150 | return result; |
528b2c61 | 151 | } |
152 | ||
62e76326 | 153 | void |
528b2c61 | 154 | ClientHttpRequest::operator delete (void *address) |
155 | { | |
aa625860 | 156 | ClientHttpRequest *t = static_cast<ClientHttpRequest *>(address); |
157 | cbdataFree(t); | |
528b2c61 | 158 | } |
159 | ||
26ac0430 | 160 | ClientHttpRequest::ClientHttpRequest(ConnStateData * aConn) : |
a83c6ed6 | 161 | #if USE_ADAPTATION |
26ac0430 | 162 | AsyncJob("ClientHttpRequest"), |
1cf238db | 163 | #endif |
26ac0430 | 164 | loggingEntry_(NULL) |
528b2c61 | 165 | { |
1cf238db | 166 | start_time = current_time; |
a0355e95 | 167 | setConn(aConn); |
168 | dlinkAdd(this, &active, &ClientActiveRequests); | |
a83c6ed6 | 169 | #if USE_ADAPTATION |
b044675d | 170 | request_satisfaction_mode = false; |
171 | #endif | |
528b2c61 | 172 | } |
173 | ||
0655fa4d | 174 | /* |
175 | * returns true if client specified that the object must come from the cache | |
176 | * without contacting origin server | |
177 | */ | |
178 | bool | |
179 | ClientHttpRequest::onlyIfCached()const | |
180 | { | |
181 | assert(request); | |
182 | return request->cache_control && | |
183 | EBIT_TEST(request->cache_control->mask, CC_ONLY_IF_CACHED); | |
184 | } | |
185 | ||
528b2c61 | 186 | /* |
187 | * This function is designed to serve a fairly specific purpose. | |
188 | * Occasionally our vBNS-connected caches can talk to each other, but not | |
189 | * the rest of the world. Here we try to detect frequent failures which | |
190 | * make the cache unusable (e.g. DNS lookup and connect() failures). If | |
191 | * the failure:success ratio goes above 1.0 then we go into "hit only" | |
192 | * mode where we only return UDP_HIT or UDP_MISS_NOFETCH. Neighbors | |
193 | * will only fetch HITs from us if they are using the ICP protocol. We | |
194 | * stay in this mode for 5 minutes. | |
26ac0430 | 195 | * |
528b2c61 | 196 | * Duane W., Sept 16, 1996 |
197 | */ | |
198 | ||
199 | #define FAILURE_MODE_TIME 300 | |
200 | ||
201 | static void | |
202 | checkFailureRatio(err_type etype, hier_code hcode) | |
203 | { | |
204 | static double magic_factor = 100.0; | |
205 | double n_good; | |
206 | double n_bad; | |
62e76326 | 207 | |
528b2c61 | 208 | if (hcode == HIER_NONE) |
62e76326 | 209 | return; |
210 | ||
528b2c61 | 211 | n_good = magic_factor / (1.0 + request_failure_ratio); |
62e76326 | 212 | |
528b2c61 | 213 | n_bad = magic_factor - n_good; |
62e76326 | 214 | |
528b2c61 | 215 | switch (etype) { |
62e76326 | 216 | |
528b2c61 | 217 | case ERR_DNS_FAIL: |
62e76326 | 218 | |
528b2c61 | 219 | case ERR_CONNECT_FAIL: |
3712be3f | 220 | case ERR_SECURE_CONNECT_FAIL: |
62e76326 | 221 | |
528b2c61 | 222 | case ERR_READ_ERROR: |
62e76326 | 223 | n_bad++; |
224 | break; | |
225 | ||
528b2c61 | 226 | default: |
62e76326 | 227 | n_good++; |
528b2c61 | 228 | } |
62e76326 | 229 | |
528b2c61 | 230 | request_failure_ratio = n_bad / n_good; |
62e76326 | 231 | |
528b2c61 | 232 | if (hit_only_mode_until > squid_curtime) |
62e76326 | 233 | return; |
234 | ||
528b2c61 | 235 | if (request_failure_ratio < 1.0) |
62e76326 | 236 | return; |
237 | ||
bf8fe701 | 238 | debugs(33, 0, "Failure Ratio at "<< std::setw(4)<< |
239 | std::setprecision(3) << request_failure_ratio); | |
62e76326 | 240 | |
bf8fe701 | 241 | debugs(33, 0, "Going into hit-only-mode for " << |
242 | FAILURE_MODE_TIME / 60 << " minutes..."); | |
62e76326 | 243 | |
528b2c61 | 244 | hit_only_mode_until = squid_curtime + FAILURE_MODE_TIME; |
62e76326 | 245 | |
528b2c61 | 246 | request_failure_ratio = 0.8; /* reset to something less than 1.0 */ |
247 | } | |
248 | ||
249 | ClientHttpRequest::~ClientHttpRequest() | |
250 | { | |
bf8fe701 | 251 | debugs(33, 3, "httpRequestFree: " << uri); |
72bdee4c | 252 | PROF_start(httpRequestFree); |
62e76326 | 253 | |
5f8252d2 | 254 | // Even though freeResources() below may destroy the request, |
255 | // we no longer set request->body_pipe to NULL here | |
256 | // because we did not initiate that pipe (ConnStateData did) | |
62e76326 | 257 | |
528b2c61 | 258 | /* the ICP check here was erroneous |
26ac0430 | 259 | * - StoreEntry::releaseRequest was always called if entry was valid |
528b2c61 | 260 | */ |
261 | assert(logType < LOG_TYPE_MAX); | |
9ce7856a | 262 | |
528b2c61 | 263 | logRequest(); |
9ce7856a | 264 | |
0976f8db | 265 | loggingEntry(NULL); |
266 | ||
528b2c61 | 267 | if (request) |
62e76326 | 268 | checkFailureRatio(request->errType, al.hier.code); |
269 | ||
528b2c61 | 270 | freeResources(); |
62e76326 | 271 | |
a83c6ed6 AR |
272 | #if USE_ADAPTATION |
273 | announceInitiatorAbort(virginHeadSource); | |
9d4d7c5e | 274 | |
a83c6ed6 AR |
275 | if (adaptedBodySource != NULL) |
276 | stopConsumingFrom(adaptedBodySource); | |
de31d06f | 277 | #endif |
9ce7856a | 278 | |
de31d06f | 279 | if (calloutContext) |
280 | delete calloutContext; | |
281 | ||
26ac0430 AJ |
282 | if (conn_) |
283 | cbdataReferenceDone(conn_); | |
1cf238db | 284 | |
528b2c61 | 285 | /* moving to the next connection is handled by the context free */ |
286 | dlinkDelete(&active, &ClientActiveRequests); | |
9ce7856a | 287 | |
72bdee4c | 288 | PROF_stop(httpRequestFree); |
528b2c61 | 289 | } |
62e76326 | 290 | |
11992b6f AJ |
291 | /** |
292 | * Create a request and kick it off | |
293 | * | |
294 | * \retval 0 success | |
295 | * \retval -1 failure | |
296 | * | |
69660be0 | 297 | * TODO: Pass in the buffers to be used in the inital Read request, as they are |
298 | * determined by the user | |
edce4d98 | 299 | */ |
11992b6f | 300 | int |
60745f24 | 301 | clientBeginRequest(const HttpRequestMethod& method, char const *url, CSCB * streamcallback, |
0655fa4d | 302 | CSD * streamdetach, ClientStreamData streamdata, HttpHeader const *header, |
62e76326 | 303 | char *tailbuf, size_t taillen) |
edce4d98 | 304 | { |
305 | size_t url_sz; | |
a0355e95 | 306 | ClientHttpRequest *http = new ClientHttpRequest(NULL); |
190154cf | 307 | HttpRequest *request; |
528b2c61 | 308 | StoreIOBuffer tempBuffer; |
1cf238db | 309 | http->start_time = current_time; |
edce4d98 | 310 | /* this is only used to adjust the connection offset in client_side.c */ |
311 | http->req_sz = 0; | |
c8be6d7b | 312 | tempBuffer.length = taillen; |
313 | tempBuffer.data = tailbuf; | |
edce4d98 | 314 | /* client stream setup */ |
315 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, | |
0655fa4d | 316 | clientReplyStatus, new clientReplyContext(http), streamcallback, |
62e76326 | 317 | streamdetach, streamdata, tempBuffer); |
edce4d98 | 318 | /* make it visible in the 'current acctive requests list' */ |
edce4d98 | 319 | /* Set flags */ |
a46d2c0e | 320 | /* internal requests only makes sense in an |
321 | * accelerator today. TODO: accept flags ? */ | |
322 | http->flags.accel = 1; | |
edce4d98 | 323 | /* allow size for url rewriting */ |
324 | url_sz = strlen(url) + Config.appendDomainLen + 5; | |
e6ccf245 | 325 | http->uri = (char *)xcalloc(url_sz, 1); |
edce4d98 | 326 | strcpy(http->uri, url); |
327 | ||
c21ad0f5 | 328 | if ((request = HttpRequest::CreateFromUrlAndMethod(http->uri, method)) == NULL) { |
bf8fe701 | 329 | debugs(85, 5, "Invalid URL: " << http->uri); |
62e76326 | 330 | return -1; |
edce4d98 | 331 | } |
62e76326 | 332 | |
69660be0 | 333 | /* |
11992b6f | 334 | * now update the headers in request with our supplied headers. urlParse |
69660be0 | 335 | * should return a blank header set, but we use Update to be sure of |
336 | * correctness. | |
edce4d98 | 337 | */ |
338 | if (header) | |
a9925b40 | 339 | request->header.update(header, NULL); |
62e76326 | 340 | |
edce4d98 | 341 | http->log_uri = xstrdup(urlCanonicalClean(request)); |
62e76326 | 342 | |
edce4d98 | 343 | /* http struct now ready */ |
344 | ||
69660be0 | 345 | /* |
346 | * build new header list *? TODO | |
edce4d98 | 347 | */ |
348 | request->flags.accelerated = http->flags.accel; | |
62e76326 | 349 | |
a46d2c0e | 350 | request->flags.internalclient = 1; |
351 | ||
352 | /* this is an internally created | |
353 | * request, not subject to acceleration | |
354 | * target overrides */ | |
69660be0 | 355 | /* |
356 | * FIXME? Do we want to detect and handle internal requests of internal | |
357 | * objects ? | |
358 | */ | |
edce4d98 | 359 | |
360 | /* Internally created requests cannot have bodies today */ | |
361 | request->content_length = 0; | |
62e76326 | 362 | |
cc192b50 | 363 | request->client_addr.SetNoAddr(); |
62e76326 | 364 | |
3d674977 AJ |
365 | #if FOLLOW_X_FORWARDED_FOR |
366 | request->indirect_client_addr.SetNoAddr(); | |
367 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
26ac0430 | 368 | |
cc192b50 | 369 | request->my_addr.SetNoAddr(); /* undefined for internal requests */ |
62e76326 | 370 | |
cc192b50 | 371 | request->my_addr.SetPort(0); |
62e76326 | 372 | |
3872be7c AJ |
373 | /* Our version is HTTP/1.1 */ |
374 | HttpVersion http_ver(1,1); | |
edce4d98 | 375 | request->http_ver = http_ver; |
62e76326 | 376 | |
6dd9f4bd | 377 | http->request = HTTPMSGLOCK(request); |
edce4d98 | 378 | |
379 | /* optional - skip the access check ? */ | |
de31d06f | 380 | http->calloutContext = new ClientRequestContext(http); |
381 | ||
57abaac0 | 382 | http->calloutContext->http_access_done = false; |
de31d06f | 383 | |
57abaac0 | 384 | http->calloutContext->redirect_done = true; |
de31d06f | 385 | |
57abaac0 | 386 | http->calloutContext->no_cache_done = true; |
de31d06f | 387 | |
388 | http->doCallouts(); | |
62e76326 | 389 | |
edce4d98 | 390 | return 0; |
391 | } | |
392 | ||
de31d06f | 393 | bool |
394 | ClientRequestContext::httpStateIsValid() | |
395 | { | |
396 | ClientHttpRequest *http_ = http; | |
397 | ||
398 | if (cbdataReferenceValid(http_)) | |
399 | return true; | |
400 | ||
401 | http = NULL; | |
402 | ||
403 | cbdataReferenceDone(http_); | |
404 | ||
405 | return false; | |
406 | } | |
407 | ||
3d674977 AJ |
408 | #if FOLLOW_X_FORWARDED_FOR |
409 | /** | |
a9044668 | 410 | * clientFollowXForwardedForCheck() checks the content of X-Forwarded-For: |
3d674977 AJ |
411 | * against the followXFF ACL, or cleans up and passes control to |
412 | * clientAccessCheck(). | |
d096ace1 AJ |
413 | * |
414 | * The trust model here is a little ambiguous. So to clarify the logic: | |
415 | * - we may always use the direct client address as the client IP. | |
a9044668 | 416 | * - these trust tests merey tell whether we trust given IP enough to believe the |
d096ace1 AJ |
417 | * IP string which it appended to the X-Forwarded-For: header. |
418 | * - if at any point we don't trust what an IP adds we stop looking. | |
419 | * - at that point the current contents of indirect_client_addr are the value set | |
420 | * by the last previously trusted IP. | |
421 | * ++ indirect_client_addr contains the remote direct client from the trusted peers viewpoint. | |
3d674977 | 422 | */ |
3d674977 AJ |
423 | static void |
424 | clientFollowXForwardedForCheck(int answer, void *data) | |
425 | { | |
426 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; | |
3d674977 AJ |
427 | |
428 | if (!calloutContext->httpStateIsValid()) | |
429 | return; | |
430 | ||
d096ace1 AJ |
431 | ClientHttpRequest *http = calloutContext->http; |
432 | HttpRequest *request = http->request; | |
433 | ||
3d674977 AJ |
434 | /* |
435 | * answer should be be ACCESS_ALLOWED or ACCESS_DENIED if we are | |
436 | * called as a result of ACL checks, or -1 if we are called when | |
437 | * there's nothing left to do. | |
438 | */ | |
439 | if (answer == ACCESS_ALLOWED && | |
26ac0430 | 440 | request->x_forwarded_for_iterator.size () != 0) { |
d096ace1 | 441 | |
3d674977 | 442 | /* |
d096ace1 AJ |
443 | * Remove the last comma-delimited element from the |
444 | * x_forwarded_for_iterator and use it to repeat the cycle. | |
445 | */ | |
3d674977 AJ |
446 | const char *p; |
447 | const char *asciiaddr; | |
448 | int l; | |
b7ac5457 | 449 | Ip::Address addr; |
bb790702 | 450 | p = request->x_forwarded_for_iterator.termedBuf(); |
3d674977 AJ |
451 | l = request->x_forwarded_for_iterator.size(); |
452 | ||
453 | /* | |
454 | * XXX x_forwarded_for_iterator should really be a list of | |
455 | * IP addresses, but it's a String instead. We have to | |
456 | * walk backwards through the String, biting off the last | |
457 | * comma-delimited part each time. As long as the data is in | |
458 | * a String, we should probably implement and use a variant of | |
459 | * strListGetItem() that walks backwards instead of forwards | |
460 | * through a comma-separated list. But we don't even do that; | |
461 | * we just do the work in-line here. | |
462 | */ | |
463 | /* skip trailing space and commas */ | |
464 | while (l > 0 && (p[l-1] == ',' || xisspace(p[l-1]))) | |
465 | l--; | |
466 | request->x_forwarded_for_iterator.cut(l); | |
467 | /* look for start of last item in list */ | |
468 | while (l > 0 && ! (p[l-1] == ',' || xisspace(p[l-1]))) | |
469 | l--; | |
470 | asciiaddr = p+l; | |
fafd0efa | 471 | if ((addr = asciiaddr)) { |
3d674977 AJ |
472 | request->indirect_client_addr = addr; |
473 | request->x_forwarded_for_iterator.cut(l); | |
d096ace1 AJ |
474 | calloutContext->acl_checklist = clientAclChecklistCreate(Config.accessList.followXFF, http); |
475 | if (!Config.onoff.acl_uses_indirect_client) { | |
476 | /* override the default src_addr tested if we have to go deeper than one level into XFF */ | |
477 | Filled(calloutContext->acl_checklist)->src_addr = request->indirect_client_addr; | |
3d674977 | 478 | } |
d096ace1 | 479 | calloutContext->acl_checklist->nonBlockingCheck(clientFollowXForwardedForCheck, data); |
3d674977 AJ |
480 | return; |
481 | } | |
482 | } /*if (answer == ACCESS_ALLOWED && | |
483 | request->x_forwarded_for_iterator.size () != 0)*/ | |
484 | ||
485 | /* clean up, and pass control to clientAccessCheck */ | |
26ac0430 | 486 | if (Config.onoff.log_uses_indirect_client) { |
3d674977 AJ |
487 | /* |
488 | * Ensure that the access log shows the indirect client | |
489 | * instead of the direct client. | |
490 | */ | |
491 | ConnStateData *conn = http->getConn(); | |
492 | conn->log_addr = request->indirect_client_addr; | |
493 | } | |
494 | request->x_forwarded_for_iterator.clean(); | |
495 | request->flags.done_follow_x_forwarded_for = 1; | |
496 | ||
d096ace1 AJ |
497 | if (answer != ACCESS_ALLOWED && answer != ACCESS_DENIED) { |
498 | debugs(28, DBG_CRITICAL, "ERROR: Processing X-Forwarded-For. Stopping at IP address: " << request->indirect_client_addr ); | |
493d3865 AJ |
499 | } |
500 | ||
501 | /* process actual access ACL as normal. */ | |
502 | calloutContext->clientAccessCheck(); | |
3d674977 AJ |
503 | } |
504 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
505 | ||
edce4d98 | 506 | /* This is the entry point for external users of the client_side routines */ |
507 | void | |
de31d06f | 508 | ClientRequestContext::clientAccessCheck() |
edce4d98 | 509 | { |
3d674977 AJ |
510 | #if FOLLOW_X_FORWARDED_FOR |
511 | if (!http->request->flags.done_follow_x_forwarded_for && | |
26ac0430 AJ |
512 | Config.accessList.followXFF && |
513 | http->request->header.has(HDR_X_FORWARDED_FOR)) { | |
d096ace1 AJ |
514 | |
515 | /* we always trust the direct client address for actual use */ | |
516 | http->request->indirect_client_addr = http->request->client_addr; | |
fafd0efa | 517 | http->request->indirect_client_addr.SetPort(0); |
d096ace1 AJ |
518 | |
519 | /* setup the XFF iterator for processing */ | |
520 | http->request->x_forwarded_for_iterator = http->request->header.getList(HDR_X_FORWARDED_FOR); | |
521 | ||
522 | /* begin by checking to see if we trust direct client enough to walk XFF */ | |
523 | acl_checklist = clientAclChecklistCreate(Config.accessList.followXFF, http); | |
524 | acl_checklist->nonBlockingCheck(clientFollowXForwardedForCheck, this); | |
3d674977 AJ |
525 | return; |
526 | } | |
527 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
493d3865 | 528 | |
b50e327b AJ |
529 | if (Config.accessList.http) { |
530 | acl_checklist = clientAclChecklistCreate(Config.accessList.http, http); | |
531 | acl_checklist->nonBlockingCheck(clientAccessCheckDoneWrapper, this); | |
532 | } else { | |
533 | debugs(0, DBG_CRITICAL, "No http_access configuration found. This will block ALL traffic"); | |
534 | clientAccessCheckDone(ACCESS_DENIED); | |
535 | } | |
edce4d98 | 536 | } |
537 | ||
533493da AJ |
538 | /** |
539 | * Identical in operation to clientAccessCheck() but performed later using different configured ACL list. | |
540 | * The default here is to allow all. Since the earlier http_access should do a default deny all. | |
541 | * This check is just for a last-minute denial based on adapted request headers. | |
542 | */ | |
543 | void | |
544 | ClientRequestContext::clientAccessCheck2() | |
545 | { | |
546 | if (Config.accessList.adapted_http) { | |
547 | acl_checklist = clientAclChecklistCreate(Config.accessList.adapted_http, http); | |
548 | acl_checklist->nonBlockingCheck(clientAccessCheckDoneWrapper, this); | |
549 | } else { | |
550 | debugs(85, 2, HERE << "No adapted_http_access configuration."); | |
551 | clientAccessCheckDone(ACCESS_ALLOWED); | |
552 | } | |
553 | } | |
554 | ||
edce4d98 | 555 | void |
de31d06f | 556 | clientAccessCheckDoneWrapper(int answer, void *data) |
edce4d98 | 557 | { |
de31d06f | 558 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; |
fbade053 | 559 | |
de31d06f | 560 | if (!calloutContext->httpStateIsValid()) |
62e76326 | 561 | return; |
62e76326 | 562 | |
de31d06f | 563 | calloutContext->clientAccessCheckDone(answer); |
564 | } | |
565 | ||
566 | void | |
567 | ClientRequestContext::clientAccessCheckDone(int answer) | |
568 | { | |
569 | acl_checklist = NULL; | |
edce4d98 | 570 | err_type page_id; |
571 | http_status status; | |
26ac0430 AJ |
572 | debugs(85, 2, "The request " << |
573 | RequestMethodStr(http->request->method) << " " << | |
574 | http->uri << " is " << | |
575 | (answer == ACCESS_ALLOWED ? "ALLOWED" : "DENIED") << | |
576 | ", because it matched '" << | |
577 | (AclMatchedName ? AclMatchedName : "NO ACL's") << "'" ); | |
f5691f9c | 578 | char const *proxy_auth_msg = "<null>"; |
579 | ||
94a396a3 | 580 | if (http->getConn() != NULL && http->getConn()->auth_user_request != NULL) |
f5691f9c | 581 | proxy_auth_msg = http->getConn()->auth_user_request->denyMessage("<null>"); |
582 | else if (http->request->auth_user_request != NULL) | |
583 | proxy_auth_msg = http->request->auth_user_request->denyMessage("<null>"); | |
62e76326 | 584 | |
de31d06f | 585 | if (answer != ACCESS_ALLOWED) { |
62e76326 | 586 | /* Send an error */ |
9ce7856a | 587 | int require_auth = (answer == ACCESS_REQ_PROXY_AUTH || aclIsProxyAuth(AclMatchedName)); |
bf8fe701 | 588 | debugs(85, 5, "Access Denied: " << http->uri); |
589 | debugs(85, 5, "AclMatchedName = " << (AclMatchedName ? AclMatchedName : "<null>")); | |
9ce7856a | 590 | |
591 | if (require_auth) | |
bf8fe701 | 592 | debugs(33, 5, "Proxy Auth Message = " << (proxy_auth_msg ? proxy_auth_msg : "<null>")); |
9ce7856a | 593 | |
62e76326 | 594 | /* |
595 | * NOTE: get page_id here, based on AclMatchedName because if | |
596 | * USE_DELAY_POOLS is enabled, then AclMatchedName gets clobbered in | |
597 | * the clientCreateStoreEntry() call just below. Pedro Ribeiro | |
598 | * <pribeiro@isel.pt> | |
599 | */ | |
9ce7856a | 600 | page_id = aclGetDenyInfoPage(&Config.denyInfoList, AclMatchedName, answer != ACCESS_REQ_PROXY_AUTH); |
601 | ||
62e76326 | 602 | http->logType = LOG_TCP_DENIED; |
603 | ||
9ce7856a | 604 | if (require_auth) { |
62e76326 | 605 | if (!http->flags.accel) { |
606 | /* Proxy authorisation needed */ | |
607 | status = HTTP_PROXY_AUTHENTICATION_REQUIRED; | |
608 | } else { | |
609 | /* WWW authorisation needed */ | |
610 | status = HTTP_UNAUTHORIZED; | |
611 | } | |
612 | ||
613 | if (page_id == ERR_NONE) | |
614 | page_id = ERR_CACHE_ACCESS_DENIED; | |
615 | } else { | |
616 | status = HTTP_FORBIDDEN; | |
617 | ||
618 | if (page_id == ERR_NONE) | |
619 | page_id = ERR_ACCESS_DENIED; | |
620 | } | |
621 | ||
de31d06f | 622 | clientStreamNode *node = (clientStreamNode *)http->client_stream.tail->prev->data; |
0655fa4d | 623 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
624 | assert (repContext); | |
b7ac5457 | 625 | Ip::Address tmpnoaddr; |
26ac0430 | 626 | tmpnoaddr.SetNoAddr(); |
0655fa4d | 627 | repContext->setReplyToError(page_id, status, |
628 | http->request->method, NULL, | |
cc192b50 | 629 | http->getConn() != NULL ? http->getConn()->peer : tmpnoaddr, |
630 | http->request, | |
631 | NULL, | |
a33a428a | 632 | http->getConn() != NULL && http->getConn()->auth_user_request != NULL ? |
cc192b50 | 633 | http->getConn()->auth_user_request : http->request->auth_user_request); |
634 | ||
62e76326 | 635 | node = (clientStreamNode *)http->client_stream.tail->data; |
636 | clientStreamRead(node, http, node->readBuffer); | |
a546b04b | 637 | return; |
edce4d98 | 638 | } |
de31d06f | 639 | |
640 | /* ACCESS_ALLOWED continues here ... */ | |
641 | safe_free(http->uri); | |
642 | ||
643 | http->uri = xstrdup(urlCanonical(http->request)); | |
644 | ||
645 | http->doCallouts(); | |
646 | } | |
647 | ||
a83c6ed6 | 648 | #if USE_ADAPTATION |
de31d06f | 649 | static void |
a22e6cd3 | 650 | adaptationAclCheckDoneWrapper(Adaptation::ServiceGroupPointer g, void *data) |
de31d06f | 651 | { |
652 | ClientRequestContext *calloutContext = (ClientRequestContext *)data; | |
653 | ||
654 | if (!calloutContext->httpStateIsValid()) | |
655 | return; | |
656 | ||
a22e6cd3 | 657 | calloutContext->adaptationAclCheckDone(g); |
de31d06f | 658 | } |
659 | ||
660 | void | |
a22e6cd3 | 661 | ClientRequestContext::adaptationAclCheckDone(Adaptation::ServiceGroupPointer g) |
de31d06f | 662 | { |
a83c6ed6 | 663 | debugs(93,3,HERE << this << " adaptationAclCheckDone called"); |
6ec67de9 | 664 | assert(http); |
665 | ||
e1381638 | 666 | #if ICAP_CLIENT |
3ff65596 | 667 | Adaptation::Icap::History::Pointer ih = http->request->icapHistory(); |
e1381638 AJ |
668 | if (ih != NULL) { |
669 | if (http->getConn() != NULL) { | |
3ff65596 | 670 | ih->rfc931 = http->getConn()->rfc931; |
e1381638 | 671 | #if USE_SSL |
3ff65596 | 672 | ih->ssluser = sslGetUserEmail(fd_table[http->getConn()->fd].ssl); |
e1381638 | 673 | #endif |
3ff65596 AR |
674 | } |
675 | ih->log_uri = http->log_uri; | |
676 | ih->req_sz = http->req_sz; | |
677 | } | |
678 | #endif | |
679 | ||
a22e6cd3 AR |
680 | if (!g) { |
681 | debugs(85,3, HERE << "no adaptation needed"); | |
5f8252d2 | 682 | http->doCallouts(); |
683 | return; | |
684 | } | |
de31d06f | 685 | |
a22e6cd3 | 686 | http->startAdaptation(g); |
edce4d98 | 687 | } |
688 | ||
de31d06f | 689 | #endif |
690 | ||
14cc8559 | 691 | static void |
692 | clientRedirectAccessCheckDone(int answer, void *data) | |
693 | { | |
694 | ClientRequestContext *context = (ClientRequestContext *)data; | |
59a1efb2 | 695 | ClientHttpRequest *http = context->http; |
14cc8559 | 696 | context->acl_checklist = NULL; |
697 | ||
698 | if (answer == ACCESS_ALLOWED) | |
de31d06f | 699 | redirectStart(http, clientRedirectDoneWrapper, context); |
14cc8559 | 700 | else |
de31d06f | 701 | context->clientRedirectDone(NULL); |
14cc8559 | 702 | } |
703 | ||
de31d06f | 704 | void |
705 | ClientRequestContext::clientRedirectStart() | |
14cc8559 | 706 | { |
bf8fe701 | 707 | debugs(33, 5, "clientRedirectStart: '" << http->uri << "'"); |
14cc8559 | 708 | |
14cc8559 | 709 | if (Config.accessList.redirector) { |
de31d06f | 710 | acl_checklist = clientAclChecklistCreate(Config.accessList.redirector, http); |
711 | acl_checklist->nonBlockingCheck(clientRedirectAccessCheckDone, this); | |
14cc8559 | 712 | } else |
de31d06f | 713 | redirectStart(http, clientRedirectDoneWrapper, this); |
14cc8559 | 714 | } |
715 | ||
edce4d98 | 716 | static int |
59a1efb2 | 717 | clientHierarchical(ClientHttpRequest * http) |
edce4d98 | 718 | { |
719 | const char *url = http->uri; | |
190154cf | 720 | HttpRequest *request = http->request; |
60745f24 | 721 | HttpRequestMethod method = request->method; |
edce4d98 | 722 | const wordlist *p = NULL; |
723 | ||
69660be0 | 724 | /* |
725 | * IMS needs a private key, so we can use the hierarchy for IMS only if our | |
726 | * neighbors support private keys | |
727 | */ | |
62e76326 | 728 | |
edce4d98 | 729 | if (request->flags.ims && !neighbors_do_private_keys) |
62e76326 | 730 | return 0; |
731 | ||
69660be0 | 732 | /* |
733 | * This is incorrect: authenticating requests can be sent via a hierarchy | |
06b97e72 | 734 | * (they can even be cached if the correct headers are set on the reply) |
edce4d98 | 735 | */ |
736 | if (request->flags.auth) | |
62e76326 | 737 | return 0; |
738 | ||
edce4d98 | 739 | if (method == METHOD_TRACE) |
62e76326 | 740 | return 1; |
741 | ||
edce4d98 | 742 | if (method != METHOD_GET) |
62e76326 | 743 | return 0; |
744 | ||
edce4d98 | 745 | /* scan hierarchy_stoplist */ |
746 | for (p = Config.hierarchy_stoplist; p; p = p->next) | |
62e76326 | 747 | if (strstr(url, p->key)) |
748 | return 0; | |
749 | ||
edce4d98 | 750 | if (request->flags.loopdetect) |
62e76326 | 751 | return 0; |
752 | ||
edce4d98 | 753 | if (request->protocol == PROTO_HTTP) |
62e76326 | 754 | return httpCachable(method); |
755 | ||
edce4d98 | 756 | if (request->protocol == PROTO_GOPHER) |
62e76326 | 757 | return gopherCachable(request); |
758 | ||
edce4d98 | 759 | if (request->protocol == PROTO_CACHEOBJ) |
62e76326 | 760 | return 0; |
761 | ||
edce4d98 | 762 | return 1; |
763 | } | |
764 | ||
765 | ||
46a1f562 HN |
766 | static void |
767 | clientCheckPinning(ClientHttpRequest * http) | |
768 | { | |
769 | HttpRequest *request = http->request; | |
770 | HttpHeader *req_hdr = &request->header; | |
771 | ConnStateData *http_conn = http->getConn(); | |
772 | ||
773 | /* Internal requests such as those from ESI includes may be without | |
774 | * a client connection | |
775 | */ | |
776 | if (!http_conn) | |
f54f527e | 777 | return; |
46a1f562 HN |
778 | |
779 | request->flags.connection_auth_disabled = http_conn->port->connection_auth_disabled; | |
780 | if (!request->flags.connection_auth_disabled) { | |
781 | if (http_conn->pinning.fd != -1) { | |
782 | if (http_conn->pinning.auth) { | |
783 | request->flags.connection_auth = 1; | |
784 | request->flags.auth = 1; | |
785 | } else { | |
786 | request->flags.connection_proxy_auth = 1; | |
787 | } | |
788 | request->setPinnedConnection(http_conn); | |
789 | } | |
790 | } | |
791 | ||
792 | /* check if connection auth is used, and flag as candidate for pinning | |
793 | * in such case. | |
794 | * Note: we may need to set flags.connection_auth even if the connection | |
795 | * is already pinned if it was pinned earlier due to proxy auth | |
796 | */ | |
797 | if (!request->flags.connection_auth) { | |
798 | if (req_hdr->has(HDR_AUTHORIZATION) || req_hdr->has(HDR_PROXY_AUTHORIZATION)) { | |
799 | HttpHeaderPos pos = HttpHeaderInitPos; | |
800 | HttpHeaderEntry *e; | |
801 | int may_pin = 0; | |
802 | while ((e = req_hdr->getEntry(&pos))) { | |
803 | if (e->id == HDR_AUTHORIZATION || e->id == HDR_PROXY_AUTHORIZATION) { | |
804 | const char *value = e->value.rawBuf(); | |
805 | if (strncasecmp(value, "NTLM ", 5) == 0 | |
806 | || | |
807 | strncasecmp(value, "Negotiate ", 10) == 0 | |
808 | || | |
809 | strncasecmp(value, "Kerberos ", 9) == 0) { | |
810 | if (e->id == HDR_AUTHORIZATION) { | |
811 | request->flags.connection_auth = 1; | |
812 | may_pin = 1; | |
813 | } else { | |
814 | request->flags.connection_proxy_auth = 1; | |
815 | may_pin = 1; | |
816 | } | |
817 | } | |
818 | } | |
819 | } | |
820 | if (may_pin && !request->pinnedConnection()) { | |
821 | request->setPinnedConnection(http->getConn()); | |
822 | } | |
823 | } | |
824 | } | |
825 | } | |
826 | ||
edce4d98 | 827 | static void |
59a1efb2 | 828 | clientInterpretRequestHeaders(ClientHttpRequest * http) |
edce4d98 | 829 | { |
190154cf | 830 | HttpRequest *request = http->request; |
0ef77270 | 831 | HttpHeader *req_hdr = &request->header; |
edce4d98 | 832 | int no_cache = 0; |
edce4d98 | 833 | const char *str; |
62e76326 | 834 | |
edce4d98 | 835 | request->imslen = -1; |
a9925b40 | 836 | request->ims = req_hdr->getTime(HDR_IF_MODIFIED_SINCE); |
62e76326 | 837 | |
edce4d98 | 838 | if (request->ims > 0) |
62e76326 | 839 | request->flags.ims = 1; |
840 | ||
432bc83c HN |
841 | if (!request->flags.ignore_cc) { |
842 | if (req_hdr->has(HDR_PRAGMA)) { | |
843 | String s = req_hdr->getList(HDR_PRAGMA); | |
62e76326 | 844 | |
432bc83c HN |
845 | if (strListIsMember(&s, "no-cache", ',')) |
846 | no_cache++; | |
30abd221 | 847 | |
432bc83c HN |
848 | s.clean(); |
849 | } | |
62e76326 | 850 | |
432bc83c HN |
851 | if (request->cache_control) |
852 | if (EBIT_TEST(request->cache_control->mask, CC_NO_CACHE)) | |
853 | no_cache++; | |
62e76326 | 854 | |
432bc83c HN |
855 | /* |
856 | * Work around for supporting the Reload button in IE browsers when Squid | |
857 | * is used as an accelerator or transparent proxy, by turning accelerated | |
858 | * IMS request to no-cache requests. Now knows about IE 5.5 fix (is | |
859 | * actually only fixed in SP1, but we can't tell whether we are talking to | |
860 | * SP1 or not so all 5.5 versions are treated 'normally'). | |
861 | */ | |
862 | if (Config.onoff.ie_refresh) { | |
863 | if (http->flags.accel && request->flags.ims) { | |
864 | if ((str = req_hdr->getStr(HDR_USER_AGENT))) { | |
865 | if (strstr(str, "MSIE 5.01") != NULL) | |
866 | no_cache++; | |
867 | else if (strstr(str, "MSIE 5.0") != NULL) | |
868 | no_cache++; | |
869 | else if (strstr(str, "MSIE 4.") != NULL) | |
870 | no_cache++; | |
871 | else if (strstr(str, "MSIE 3.") != NULL) | |
872 | no_cache++; | |
873 | } | |
62e76326 | 874 | } |
875 | } | |
edce4d98 | 876 | } |
914b89a2 | 877 | |
878 | if (request->method == METHOD_OTHER) { | |
26ac0430 | 879 | no_cache++; |
60745f24 | 880 | } |
62e76326 | 881 | |
edce4d98 | 882 | if (no_cache) { |
626096be | 883 | #if USE_HTTP_VIOLATIONS |
62e76326 | 884 | |
885 | if (Config.onoff.reload_into_ims) | |
886 | request->flags.nocache_hack = 1; | |
887 | else if (refresh_nocache_hack) | |
888 | request->flags.nocache_hack = 1; | |
889 | else | |
edce4d98 | 890 | #endif |
62e76326 | 891 | |
892 | request->flags.nocache = 1; | |
edce4d98 | 893 | } |
62e76326 | 894 | |
0ef77270 | 895 | /* ignore range header in non-GETs or non-HEADs */ |
896 | if (request->method == METHOD_GET || request->method == METHOD_HEAD) { | |
56713d9a AR |
897 | // XXX: initialize if we got here without HttpRequest::parseHeader() |
898 | if (!request->range) | |
899 | request->range = req_hdr->getRange(); | |
62e76326 | 900 | |
901 | if (request->range) { | |
902 | request->flags.range = 1; | |
903 | clientStreamNode *node = (clientStreamNode *)http->client_stream.tail->data; | |
904 | /* XXX: This is suboptimal. We should give the stream the range set, | |
905 | * and thereby let the top of the stream set the offset when the | |
26ac0430 | 906 | * size becomes known. As it is, we will end up requesting from 0 |
62e76326 | 907 | * for evey -X range specification. |
908 | * RBC - this may be somewhat wrong. We should probably set the range | |
909 | * iter up at this point. | |
910 | */ | |
911 | node->readBuffer.offset = request->range->lowestOffset(0); | |
912 | http->range_iter.pos = request->range->begin(); | |
913 | http->range_iter.valid = true; | |
914 | } | |
edce4d98 | 915 | } |
62e76326 | 916 | |
0ef77270 | 917 | /* Only HEAD and GET requests permit a Range or Request-Range header. |
918 | * If these headers appear on any other type of request, delete them now. | |
919 | */ | |
920 | else { | |
921 | req_hdr->delById(HDR_RANGE); | |
922 | req_hdr->delById(HDR_REQUEST_RANGE); | |
56713d9a | 923 | delete request->range; |
0ef77270 | 924 | request->range = NULL; |
925 | } | |
926 | ||
a9925b40 | 927 | if (req_hdr->has(HDR_AUTHORIZATION)) |
62e76326 | 928 | request->flags.auth = 1; |
929 | ||
46a1f562 | 930 | clientCheckPinning(http); |
d67acb4e | 931 | |
edce4d98 | 932 | if (request->login[0] != '\0') |
62e76326 | 933 | request->flags.auth = 1; |
934 | ||
a9925b40 | 935 | if (req_hdr->has(HDR_VIA)) { |
30abd221 | 936 | String s = req_hdr->getList(HDR_VIA); |
62e76326 | 937 | /* |
3c4fcf0f | 938 | * ThisCache cannot be a member of Via header, "1.1 ThisCache" can. |
62e76326 | 939 | * Note ThisCache2 has a space prepended to the hostname so we don't |
940 | * accidentally match super-domains. | |
941 | */ | |
942 | ||
943 | if (strListIsSubstr(&s, ThisCache2, ',')) { | |
944 | debugObj(33, 1, "WARNING: Forwarding loop detected for:\n", | |
945 | request, (ObjPackMethod) & httpRequestPack); | |
946 | request->flags.loopdetect = 1; | |
947 | } | |
948 | ||
21f6708d | 949 | #if USE_FORW_VIA_DB |
bb790702 | 950 | fvdbCountVia(s.termedBuf()); |
62e76326 | 951 | |
edce4d98 | 952 | #endif |
62e76326 | 953 | |
30abd221 | 954 | s.clean(); |
edce4d98 | 955 | } |
62e76326 | 956 | |
26ac0430 AJ |
957 | /** |
958 | \todo --enable-useragent-log and --enable-referer-log. We should | |
959 | probably drop those two as the custom log formats accomplish pretty much the same thing.. | |
960 | */ | |
edce4d98 | 961 | #if USE_USERAGENT_LOG |
a9925b40 | 962 | if ((str = req_hdr->getStr(HDR_USER_AGENT))) |
b4306cba | 963 | logUserAgent(fqdnFromAddr(http->getConn()->log_addr), str); |
62e76326 | 964 | |
edce4d98 | 965 | #endif |
966 | #if USE_REFERER_LOG | |
62e76326 | 967 | |
a9925b40 | 968 | if ((str = req_hdr->getStr(HDR_REFERER))) |
b4306cba | 969 | logReferer(fqdnFromAddr(http->getConn()->log_addr), str, http->log_uri); |
62e76326 | 970 | |
edce4d98 | 971 | #endif |
21f6708d | 972 | #if USE_FORW_VIA_DB |
62e76326 | 973 | |
a9925b40 | 974 | if (req_hdr->has(HDR_X_FORWARDED_FOR)) { |
30abd221 | 975 | String s = req_hdr->getList(HDR_X_FORWARDED_FOR); |
bb790702 | 976 | fvdbCountForw(s.termedBuf()); |
30abd221 | 977 | s.clean(); |
edce4d98 | 978 | } |
62e76326 | 979 | |
edce4d98 | 980 | #endif |
62e76326 | 981 | |
610ee341 | 982 | request->flags.cachable = http->request->cacheable(); |
62e76326 | 983 | |
edce4d98 | 984 | if (clientHierarchical(http)) |
62e76326 | 985 | request->flags.hierarchical = 1; |
986 | ||
bf8fe701 | 987 | debugs(85, 5, "clientInterpretRequestHeaders: REQ_NOCACHE = " << |
988 | (request->flags.nocache ? "SET" : "NOT SET")); | |
989 | debugs(85, 5, "clientInterpretRequestHeaders: REQ_CACHABLE = " << | |
990 | (request->flags.cachable ? "SET" : "NOT SET")); | |
991 | debugs(85, 5, "clientInterpretRequestHeaders: REQ_HIERARCHICAL = " << | |
992 | (request->flags.hierarchical ? "SET" : "NOT SET")); | |
62e76326 | 993 | |
edce4d98 | 994 | } |
995 | ||
996 | void | |
de31d06f | 997 | clientRedirectDoneWrapper(void *data, char *result) |
edce4d98 | 998 | { |
de31d06f | 999 | ClientRequestContext *calloutContext = (ClientRequestContext *)data; |
db02222f | 1000 | |
de31d06f | 1001 | if (!calloutContext->httpStateIsValid()) |
62e76326 | 1002 | return; |
62e76326 | 1003 | |
de31d06f | 1004 | calloutContext->clientRedirectDone(result); |
1005 | } | |
1006 | ||
1007 | void | |
1008 | ClientRequestContext::clientRedirectDone(char *result) | |
1009 | { | |
190154cf | 1010 | HttpRequest *new_request = NULL; |
1011 | HttpRequest *old_request = http->request; | |
bf8fe701 | 1012 | debugs(85, 5, "clientRedirectDone: '" << http->uri << "' result=" << (result ? result : "NULL")); |
de31d06f | 1013 | assert(redirect_state == REDIRECT_PENDING); |
1014 | redirect_state = REDIRECT_DONE; | |
62e76326 | 1015 | |
edce4d98 | 1016 | if (result) { |
62e76326 | 1017 | http_status status = (http_status) atoi(result); |
1018 | ||
1019 | if (status == HTTP_MOVED_PERMANENTLY | |
1020 | || status == HTTP_MOVED_TEMPORARILY | |
1021 | || status == HTTP_SEE_OTHER | |
1022 | || status == HTTP_TEMPORARY_REDIRECT) { | |
1023 | char *t = result; | |
1024 | ||
1025 | if ((t = strchr(result, ':')) != NULL) { | |
1026 | http->redirect.status = status; | |
1027 | http->redirect.location = xstrdup(t + 1); | |
e5b677f0 | 1028 | // TODO: validate the URL produced here is RFC 2616 compliant absolute URI |
62e76326 | 1029 | } else { |
e5b677f0 AJ |
1030 | if (old_request->http_ver < HttpVersion(1,1)) |
1031 | debugs(85, DBG_CRITICAL, "ERROR: URL-rewrite produces invalid 302 redirect Location: " << result); | |
1032 | else | |
1033 | debugs(85, DBG_CRITICAL, "ERROR: URL-rewrite produces invalid 303 redirect Location: " << result); | |
62e76326 | 1034 | } |
e5b677f0 AJ |
1035 | } else if (strcmp(result, http->uri)) { |
1036 | if (!(new_request = HttpRequest::CreateFromUrlAndMethod(result, old_request->method))) | |
1037 | debugs(85, DBG_CRITICAL, "ERROR: URL-rewrite produces invalid request: " << | |
1038 | old_request->method << " " << result << " HTTP/1.1"); | |
74b48915 | 1039 | } |
edce4d98 | 1040 | } |
62e76326 | 1041 | |
edce4d98 | 1042 | if (new_request) { |
62e76326 | 1043 | safe_free(http->uri); |
1044 | http->uri = xstrdup(urlCanonical(new_request)); | |
1045 | new_request->http_ver = old_request->http_ver; | |
a9925b40 | 1046 | new_request->header.append(&old_request->header); |
62e76326 | 1047 | new_request->client_addr = old_request->client_addr; |
3d674977 AJ |
1048 | #if FOLLOW_X_FORWARDED_FOR |
1049 | new_request->indirect_client_addr = old_request->indirect_client_addr; | |
1050 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
62e76326 | 1051 | new_request->my_addr = old_request->my_addr; |
62e76326 | 1052 | new_request->flags = old_request->flags; |
3c1f01bc | 1053 | new_request->flags.redirected = 1; |
a33a428a | 1054 | new_request->auth_user_request = old_request->auth_user_request; |
62e76326 | 1055 | |
5f8252d2 | 1056 | if (old_request->body_pipe != NULL) { |
1057 | new_request->body_pipe = old_request->body_pipe; | |
1058 | old_request->body_pipe = NULL; | |
4194f7b6 AJ |
1059 | debugs(61,2, HERE << "URL-rewriter diverts body_pipe " << new_request->body_pipe << |
1060 | " from request " << old_request << " to " << new_request); | |
62e76326 | 1061 | } |
1062 | ||
1063 | new_request->content_length = old_request->content_length; | |
abb929f0 | 1064 | new_request->extacl_user = old_request->extacl_user; |
1065 | new_request->extacl_passwd = old_request->extacl_passwd; | |
62e76326 | 1066 | new_request->flags.proxy_keepalive = old_request->flags.proxy_keepalive; |
6dd9f4bd | 1067 | HTTPMSGUNLOCK(old_request); |
1068 | http->request = HTTPMSGLOCK(new_request); | |
edce4d98 | 1069 | } |
62e76326 | 1070 | |
edce4d98 | 1071 | /* FIXME PIPELINE: This is innacurate during pipelining */ |
62e76326 | 1072 | |
5f8252d2 | 1073 | if (http->getConn() != NULL) |
98242069 | 1074 | fd_note(http->getConn()->fd, http->uri); |
62e76326 | 1075 | |
c8be6d7b | 1076 | assert(http->uri); |
62e76326 | 1077 | |
de31d06f | 1078 | http->doCallouts(); |
edce4d98 | 1079 | } |
1080 | ||
b50e327b AJ |
1081 | /** Test cache allow/deny configuration |
1082 | * Sets flags.cachable=1 if caching is not denied. | |
1083 | */ | |
edce4d98 | 1084 | void |
8e2745f4 | 1085 | ClientRequestContext::checkNoCache() |
edce4d98 | 1086 | { |
b50e327b AJ |
1087 | if (Config.accessList.noCache) { |
1088 | acl_checklist = clientAclChecklistCreate(Config.accessList.noCache, http); | |
1089 | acl_checklist->nonBlockingCheck(checkNoCacheDoneWrapper, this); | |
1090 | } else { | |
1091 | /* unless otherwise specified, we try to cache. */ | |
1092 | checkNoCacheDone(1); | |
1093 | } | |
edce4d98 | 1094 | } |
1095 | ||
de31d06f | 1096 | static void |
1097 | checkNoCacheDoneWrapper(int answer, void *data) | |
edce4d98 | 1098 | { |
de31d06f | 1099 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; |
e4a67a80 | 1100 | |
de31d06f | 1101 | if (!calloutContext->httpStateIsValid()) |
1102 | return; | |
1103 | ||
1104 | calloutContext->checkNoCacheDone(answer); | |
8e2745f4 | 1105 | } |
4fb35c3c | 1106 | |
8e2745f4 | 1107 | void |
1108 | ClientRequestContext::checkNoCacheDone(int answer) | |
62e76326 | 1109 | { |
8e2745f4 | 1110 | acl_checklist = NULL; |
de31d06f | 1111 | http->request->flags.cachable = answer; |
1112 | http->doCallouts(); | |
edce4d98 | 1113 | } |
1114 | ||
69660be0 | 1115 | /* |
1116 | * Identify requests that do not go through the store and client side stream | |
1117 | * and forward them to the appropriate location. All other requests, request | |
1118 | * them. | |
edce4d98 | 1119 | */ |
1120 | void | |
8e2745f4 | 1121 | ClientHttpRequest::processRequest() |
edce4d98 | 1122 | { |
60745f24 | 1123 | debugs(85, 4, "clientProcessRequest: " << RequestMethodStr(request->method) << " '" << uri << "'"); |
62e76326 | 1124 | |
3712be3f | 1125 | #if USE_SSL |
1126 | if (request->method == METHOD_CONNECT && sslBumpNeeded()) { | |
1127 | sslBumpStart(); | |
1128 | return; | |
1129 | } | |
1130 | #endif | |
1131 | ||
2baf58c3 | 1132 | if (request->method == METHOD_CONNECT && !redirect.status) { |
62e76326 | 1133 | logType = LOG_TCP_MISS; |
f84dd7eb | 1134 | getConn()->stopReading(); // tunnels read for themselves |
11007d4b | 1135 | tunnelStart(this, &out.size, &al.http.code); |
62e76326 | 1136 | return; |
edce4d98 | 1137 | } |
62e76326 | 1138 | |
8e2745f4 | 1139 | httpStart(); |
1140 | } | |
1141 | ||
1142 | void | |
1143 | ClientHttpRequest::httpStart() | |
1144 | { | |
559da936 | 1145 | PROF_start(httpStart); |
8e2745f4 | 1146 | logType = LOG_TAG_NONE; |
bf8fe701 | 1147 | debugs(85, 4, "ClientHttpRequest::httpStart: " << log_tags[logType] << " for '" << uri << "'"); |
1148 | ||
edce4d98 | 1149 | /* no one should have touched this */ |
8e2745f4 | 1150 | assert(out.offset == 0); |
edce4d98 | 1151 | /* Use the Stream Luke */ |
8e2745f4 | 1152 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->data; |
1153 | clientStreamRead(node, this, node->readBuffer); | |
559da936 | 1154 | PROF_stop(httpStart); |
edce4d98 | 1155 | } |
0655fa4d | 1156 | |
3712be3f | 1157 | #if USE_SSL |
1158 | ||
1159 | // determines whether we should bump the CONNECT request | |
1160 | bool | |
26ac0430 AJ |
1161 | ClientHttpRequest::sslBumpNeeded() const |
1162 | { | |
3712be3f | 1163 | if (!getConn()->port->sslBump || !Config.accessList.ssl_bump) |
1164 | return false; | |
1165 | ||
1166 | debugs(85, 5, HERE << "SslBump possible, checking ACL"); | |
1167 | ||
c0941a6a | 1168 | ACLFilledChecklist check(Config.accessList.ssl_bump, request, NULL); |
3712be3f | 1169 | check.src_addr = request->client_addr; |
26ac0430 | 1170 | check.my_addr = request->my_addr; |
26ac0430 | 1171 | return check.fastCheck() == 1; |
3712be3f | 1172 | } |
1173 | ||
1174 | // called when comm_write has completed | |
1175 | static void | |
1176 | SslBumpEstablish(int, char *, size_t, comm_err_t errflag, int, void *data) | |
1177 | { | |
1178 | ClientHttpRequest *r = static_cast<ClientHttpRequest*>(data); | |
1179 | debugs(85, 5, HERE << "responded to CONNECT: " << r << " ? " << errflag); | |
1180 | ||
1181 | assert(r && cbdataReferenceValid(r)); | |
1182 | r->sslBumpEstablish(errflag); | |
1183 | } | |
1184 | ||
1185 | void | |
1186 | ClientHttpRequest::sslBumpEstablish(comm_err_t errflag) | |
1187 | { | |
1188 | // Bail out quickly on COMM_ERR_CLOSING - close handlers will tidy up | |
1189 | if (errflag == COMM_ERR_CLOSING) | |
1190 | return; | |
1191 | ||
1192 | if (errflag) { | |
1193 | getConn()->startClosing("CONNECT response failure in SslBump"); | |
1194 | return; | |
1195 | } | |
1196 | ||
95d2589c | 1197 | getConn()->switchToHttps(request->GetHost()); |
3712be3f | 1198 | } |
1199 | ||
1200 | void | |
1201 | ClientHttpRequest::sslBumpStart() | |
1202 | { | |
1203 | debugs(85, 5, HERE << "ClientHttpRequest::sslBumpStart"); | |
1204 | ||
1205 | // send an HTTP 200 response to kick client SSL negotiation | |
1206 | const int fd = getConn()->fd; | |
1207 | debugs(33, 7, HERE << "Confirming CONNECT tunnel on FD " << fd); | |
1208 | ||
1209 | // TODO: Unify with tunnel.cc and add a Server(?) header | |
1210 | static const char *const conn_established = | |
3c4fcf0f | 1211 | "HTTP/1.1 200 Connection established\r\n\r\n"; |
ec41b64c AJ |
1212 | AsyncCall::Pointer call = commCbCall(85, 5, "ClientSocketContext::sslBumpEstablish", |
1213 | CommIoCbPtrFun(&SslBumpEstablish, this)); | |
1214 | Comm::Write(fd, conn_established, strlen(conn_established), call, NULL); | |
3712be3f | 1215 | } |
1216 | ||
1217 | #endif | |
1218 | ||
0655fa4d | 1219 | bool |
1220 | ClientHttpRequest::gotEnough() const | |
1221 | { | |
86a2f789 | 1222 | /** TODO: should be querying the stream. */ |
7173d5b0 | 1223 | int64_t contentLength = |
06a5ae20 | 1224 | memObject()->getReply()->bodySize(request->method); |
0655fa4d | 1225 | assert(contentLength >= 0); |
1226 | ||
1227 | if (out.offset < contentLength) | |
1228 | return false; | |
1229 | ||
1230 | return true; | |
1231 | } | |
1232 | ||
86a2f789 | 1233 | void |
1234 | ClientHttpRequest::storeEntry(StoreEntry *newEntry) | |
1235 | { | |
1236 | entry_ = newEntry; | |
1237 | } | |
1238 | ||
0976f8db | 1239 | void |
1240 | ClientHttpRequest::loggingEntry(StoreEntry *newEntry) | |
1241 | { | |
1242 | if (loggingEntry_) | |
97b5e68f | 1243 | loggingEntry_->unlock(); |
0976f8db | 1244 | |
1245 | loggingEntry_ = newEntry; | |
1246 | ||
1247 | if (loggingEntry_) | |
3d0ac046 | 1248 | loggingEntry_->lock(); |
0976f8db | 1249 | } |
86a2f789 | 1250 | |
de31d06f | 1251 | /* |
1252 | * doCallouts() - This function controls the order of "callout" | |
1253 | * executions, including non-blocking access control checks, the | |
1254 | * redirector, and ICAP. Previously, these callouts were chained | |
1255 | * together such that "clientAccessCheckDone()" would call | |
1256 | * "clientRedirectStart()" and so on. | |
1257 | * | |
1258 | * The ClientRequestContext (aka calloutContext) class holds certain | |
1259 | * state data for the callout/callback operations. Previously | |
1260 | * ClientHttpRequest would sort of hand off control to ClientRequestContext | |
1261 | * for a short time. ClientRequestContext would then delete itself | |
1262 | * and pass control back to ClientHttpRequest when all callouts | |
1263 | * were finished. | |
1264 | * | |
1265 | * This caused some problems for ICAP because we want to make the | |
1266 | * ICAP callout after checking ACLs, but before checking the no_cache | |
1267 | * list. We can't stuff the ICAP state into the ClientRequestContext | |
1268 | * class because we still need the ICAP state after ClientRequestContext | |
1269 | * goes away. | |
1270 | * | |
1271 | * Note that ClientRequestContext is created before the first call | |
1272 | * to doCallouts(). | |
1273 | * | |
1274 | * If one of the callouts notices that ClientHttpRequest is no | |
1275 | * longer valid, it should call cbdataReferenceDone() so that | |
1276 | * ClientHttpRequest's reference count goes to zero and it will get | |
1277 | * deleted. ClientHttpRequest will then delete ClientRequestContext. | |
1278 | * | |
1279 | * Note that we set the _done flags here before actually starting | |
1280 | * the callout. This is strictly for convenience. | |
1281 | */ | |
1282 | ||
425de4c8 AJ |
1283 | extern tos_t aclMapTOS (acl_tos * head, ACLChecklist * ch); |
1284 | extern nfmark_t aclMapNfmark (acl_nfmark * head, ACLChecklist * ch); | |
057f5854 | 1285 | |
de31d06f | 1286 | void |
1287 | ClientHttpRequest::doCallouts() | |
1288 | { | |
1289 | assert(calloutContext); | |
1290 | ||
6fca33e0 CT |
1291 | /*Save the original request for logging purposes*/ |
1292 | if (!calloutContext->http->al.request) | |
105d1937 | 1293 | calloutContext->http->al.request = HTTPMSGLOCK(request); |
6fca33e0 | 1294 | |
de31d06f | 1295 | if (!calloutContext->http_access_done) { |
3712be3f | 1296 | debugs(83, 3, HERE << "Doing calloutContext->clientAccessCheck()"); |
57abaac0 | 1297 | calloutContext->http_access_done = true; |
de31d06f | 1298 | calloutContext->clientAccessCheck(); |
1299 | return; | |
1300 | } | |
1301 | ||
a83c6ed6 | 1302 | #if USE_ADAPTATION |
abd4b611 | 1303 | if (!calloutContext->adaptation_acl_check_done) { |
a83c6ed6 | 1304 | calloutContext->adaptation_acl_check_done = true; |
abd4b611 | 1305 | if (Adaptation::AccessCheck::Start( |
26ac0430 AJ |
1306 | Adaptation::methodReqmod, Adaptation::pointPreCache, |
1307 | request, NULL, adaptationAclCheckDoneWrapper, calloutContext)) | |
abd4b611 | 1308 | return; // will call callback |
de31d06f | 1309 | } |
de31d06f | 1310 | #endif |
1311 | ||
1312 | if (!calloutContext->redirect_done) { | |
57abaac0 | 1313 | calloutContext->redirect_done = true; |
de31d06f | 1314 | assert(calloutContext->redirect_state == REDIRECT_NONE); |
1315 | ||
1316 | if (Config.Program.redirect) { | |
3712be3f | 1317 | debugs(83, 3, HERE << "Doing calloutContext->clientRedirectStart()"); |
de31d06f | 1318 | calloutContext->redirect_state = REDIRECT_PENDING; |
1319 | calloutContext->clientRedirectStart(); | |
1320 | return; | |
1321 | } | |
1322 | } | |
1323 | ||
533493da AJ |
1324 | if (!calloutContext->adapted_http_access_done) { |
1325 | debugs(83, 3, HERE << "Doing calloutContext->clientAccessCheck2()"); | |
1326 | calloutContext->adapted_http_access_done = true; | |
1327 | calloutContext->clientAccessCheck2(); | |
1328 | return; | |
1329 | } | |
1330 | ||
57abaac0 | 1331 | if (!calloutContext->interpreted_req_hdrs) { |
3712be3f | 1332 | debugs(83, 3, HERE << "Doing clientInterpretRequestHeaders()"); |
57abaac0 | 1333 | calloutContext->interpreted_req_hdrs = 1; |
1334 | clientInterpretRequestHeaders(this); | |
1335 | } | |
1336 | ||
de31d06f | 1337 | if (!calloutContext->no_cache_done) { |
57abaac0 | 1338 | calloutContext->no_cache_done = true; |
de31d06f | 1339 | |
1340 | if (Config.accessList.noCache && request->flags.cachable) { | |
3712be3f | 1341 | debugs(83, 3, HERE << "Doing calloutContext->checkNoCache()"); |
de31d06f | 1342 | calloutContext->checkNoCache(); |
1343 | return; | |
1344 | } | |
1345 | } | |
1346 | ||
425de4c8 AJ |
1347 | if (!calloutContext->tosToClientDone) { |
1348 | calloutContext->tosToClientDone = true; | |
3712be3f | 1349 | if (getConn() != NULL) { |
c0941a6a | 1350 | ACLFilledChecklist ch(NULL, request, NULL); |
057f5854 | 1351 | ch.src_addr = request->client_addr; |
1352 | ch.my_addr = request->my_addr; | |
425de4c8 | 1353 | tos_t tos = aclMapTOS(Ip::Qos::TheConfig.tosToClient, &ch); |
3712be3f | 1354 | if (tos) |
425de4c8 AJ |
1355 | Ip::Qos::setSockTos(getConn()->fd, tos); |
1356 | } | |
1357 | } | |
1358 | ||
1359 | if (!calloutContext->nfmarkToClientDone) { | |
1360 | calloutContext->nfmarkToClientDone = true; | |
1361 | if (getConn() != NULL) { | |
1362 | ACLFilledChecklist ch(NULL, request, NULL); | |
1363 | ch.src_addr = request->client_addr; | |
1364 | ch.my_addr = request->my_addr; | |
1365 | nfmark_t mark = aclMapNfmark(Ip::Qos::TheConfig.nfmarkToClient, &ch); | |
1366 | if (mark) | |
1367 | Ip::Qos::setSockNfmark(getConn()->fd, mark); | |
3712be3f | 1368 | } |
057f5854 | 1369 | } |
1370 | ||
de31d06f | 1371 | cbdataReferenceDone(calloutContext->http); |
1372 | delete calloutContext; | |
1373 | calloutContext = NULL; | |
de31d06f | 1374 | #if HEADERS_LOG |
1375 | ||
1376 | headersLog(0, 1, request->method, request); | |
1377 | #endif | |
1378 | ||
58d7150d | 1379 | debugs(83, 3, HERE << "calling processRequest()"); |
de31d06f | 1380 | processRequest(); |
3ff65596 AR |
1381 | |
1382 | #if ICAP_CLIENT | |
1383 | Adaptation::Icap::History::Pointer ih = request->icapHistory(); | |
1384 | if (ih != NULL) | |
1385 | ih->logType = logType; | |
1386 | #endif | |
de31d06f | 1387 | } |
1388 | ||
32d002cb | 1389 | #if !_USE_INLINE_ |
86a2f789 | 1390 | #include "client_side_request.cci" |
1391 | #endif | |
de31d06f | 1392 | |
a83c6ed6 | 1393 | #if USE_ADAPTATION |
a22e6cd3 AR |
1394 | /// Initiate an asynchronous adaptation transaction which will call us back. |
1395 | void | |
1396 | ClientHttpRequest::startAdaptation(const Adaptation::ServiceGroupPointer &g) | |
3b299123 | 1397 | { |
a22e6cd3 | 1398 | debugs(85, 3, HERE << "adaptation needed for " << this); |
a83c6ed6 AR |
1399 | assert(!virginHeadSource); |
1400 | assert(!adaptedBodySource); | |
a22e6cd3 | 1401 | virginHeadSource = initiateAdaptation( |
4cb2536f | 1402 | new Adaptation::Iterator(request, NULL, g)); |
a83c6ed6 | 1403 | |
e1381638 | 1404 | // we could try to guess whether we can bypass this adaptation |
a22e6cd3 | 1405 | // initiation failure, but it should not really happen |
4299f876 | 1406 | Must(initiated(virginHeadSource)); |
de31d06f | 1407 | } |
1408 | ||
1409 | void | |
a83c6ed6 | 1410 | ClientHttpRequest::noteAdaptationAnswer(HttpMsg *msg) |
de31d06f | 1411 | { |
de31d06f | 1412 | assert(cbdataReferenceValid(this)); // indicates bug |
5f8252d2 | 1413 | assert(msg); |
1414 | ||
b044675d | 1415 | if (HttpRequest *new_req = dynamic_cast<HttpRequest*>(msg)) { |
200ac359 | 1416 | /* |
5f8252d2 | 1417 | * Replace the old request with the new request. |
200ac359 | 1418 | */ |
6dd9f4bd | 1419 | HTTPMSGUNLOCK(request); |
1420 | request = HTTPMSGLOCK(new_req); | |
200ac359 | 1421 | /* |
1422 | * Store the new URI for logging | |
1423 | */ | |
1424 | xfree(uri); | |
1425 | uri = xstrdup(urlCanonical(request)); | |
1426 | setLogUri(this, urlCanonicalClean(request)); | |
914b89a2 | 1427 | assert(request->method.id()); |
b044675d | 1428 | } else if (HttpReply *new_rep = dynamic_cast<HttpReply*>(msg)) { |
1429 | debugs(85,3,HERE << "REQMOD reply is HTTP reply"); | |
1430 | ||
5f8252d2 | 1431 | // subscribe to receive reply body |
1432 | if (new_rep->body_pipe != NULL) { | |
a83c6ed6 | 1433 | adaptedBodySource = new_rep->body_pipe; |
d222a56c HN |
1434 | int consumer_ok = adaptedBodySource->setConsumerIfNotLate(this); |
1435 | assert(consumer_ok); | |
5f8252d2 | 1436 | } |
1437 | ||
b044675d | 1438 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->prev->data; |
1439 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1440 | repContext->createStoreEntry(request->method, request->flags); | |
1441 | ||
1442 | EBIT_CLR(storeEntry()->flags, ENTRY_FWD_HDR_WAIT); | |
1443 | request_satisfaction_mode = true; | |
1444 | request_satisfaction_offset = 0; | |
1445 | storeEntry()->replaceHttpReply(new_rep); | |
97ae5196 | 1446 | storeEntry()->timestampsSet(); |
cb4c4288 | 1447 | |
a83c6ed6 | 1448 | if (!adaptedBodySource) // no body |
cb4c4288 | 1449 | storeEntry()->complete(); |
b044675d | 1450 | clientGetMoreData(node, this); |
200ac359 | 1451 | } |
de31d06f | 1452 | |
5f8252d2 | 1453 | // we are done with getting headers (but may be receiving body) |
a83c6ed6 | 1454 | clearAdaptation(virginHeadSource); |
5f8252d2 | 1455 | |
b044675d | 1456 | if (!request_satisfaction_mode) |
1457 | doCallouts(); | |
de31d06f | 1458 | } |
1459 | ||
1460 | void | |
a83c6ed6 | 1461 | ClientHttpRequest::noteAdaptationQueryAbort(bool final) |
de31d06f | 1462 | { |
a83c6ed6 AR |
1463 | clearAdaptation(virginHeadSource); |
1464 | assert(!adaptedBodySource); | |
64b66b76 | 1465 | handleAdaptationFailure(ERR_DETAIL_ICAP_REQMOD_ABORT, !final); |
de31d06f | 1466 | } |
1467 | ||
1468 | void | |
1cf238db | 1469 | ClientHttpRequest::noteMoreBodyDataAvailable(BodyPipe::Pointer) |
de31d06f | 1470 | { |
5f8252d2 | 1471 | assert(request_satisfaction_mode); |
a83c6ed6 | 1472 | assert(adaptedBodySource != NULL); |
5f8252d2 | 1473 | |
4ce0e99b | 1474 | if (const size_t contentSize = adaptedBodySource->buf().contentSize()) { |
a83c6ed6 | 1475 | BodyPipeCheckout bpc(*adaptedBodySource); |
4ce0e99b | 1476 | const StoreIOBuffer ioBuf(&bpc.buf, request_satisfaction_offset); |
5f8252d2 | 1477 | storeEntry()->write(ioBuf); |
1478 | // assume can write everything | |
1479 | request_satisfaction_offset += contentSize; | |
4ce0e99b | 1480 | bpc.buf.consume(contentSize); |
5f8252d2 | 1481 | bpc.checkIn(); |
1482 | } | |
1483 | ||
a83c6ed6 | 1484 | if (adaptedBodySource->exhausted()) |
5f8252d2 | 1485 | endRequestSatisfaction(); |
1486 | // else wait for more body data | |
de31d06f | 1487 | } |
1488 | ||
1489 | void | |
1cf238db | 1490 | ClientHttpRequest::noteBodyProductionEnded(BodyPipe::Pointer) |
de31d06f | 1491 | { |
a83c6ed6 AR |
1492 | assert(!virginHeadSource); |
1493 | if (adaptedBodySource != NULL) { // did not end request satisfaction yet | |
26ac0430 | 1494 | // We do not expect more because noteMoreBodyDataAvailable always |
5f8252d2 | 1495 | // consumes everything. We do not even have a mechanism to consume |
1496 | // leftovers after noteMoreBodyDataAvailable notifications seize. | |
a83c6ed6 | 1497 | assert(adaptedBodySource->exhausted()); |
5f8252d2 | 1498 | endRequestSatisfaction(); |
1499 | } | |
1500 | } | |
3b299123 | 1501 | |
5f8252d2 | 1502 | void |
26ac0430 AJ |
1503 | ClientHttpRequest::endRequestSatisfaction() |
1504 | { | |
5f8252d2 | 1505 | debugs(85,4, HERE << this << " ends request satisfaction"); |
1506 | assert(request_satisfaction_mode); | |
a83c6ed6 | 1507 | stopConsumingFrom(adaptedBodySource); |
3b299123 | 1508 | |
5f8252d2 | 1509 | // TODO: anything else needed to end store entry formation correctly? |
1510 | storeEntry()->complete(); | |
1511 | } | |
de31d06f | 1512 | |
5f8252d2 | 1513 | void |
1cf238db | 1514 | ClientHttpRequest::noteBodyProducerAborted(BodyPipe::Pointer) |
5f8252d2 | 1515 | { |
a83c6ed6 AR |
1516 | assert(!virginHeadSource); |
1517 | stopConsumingFrom(adaptedBodySource); | |
64b66b76 | 1518 | handleAdaptationFailure(ERR_DETAIL_ICAP_RESPMOD_CLT_SIDE_BODY); |
5f8252d2 | 1519 | } |
3b299123 | 1520 | |
5f8252d2 | 1521 | void |
64b66b76 | 1522 | ClientHttpRequest::handleAdaptationFailure(int errDetail, bool bypassable) |
5f8252d2 | 1523 | { |
a83c6ed6 | 1524 | debugs(85,3, HERE << "handleAdaptationFailure(" << bypassable << ")"); |
3b299123 | 1525 | |
5f8252d2 | 1526 | const bool usedStore = storeEntry() && !storeEntry()->isEmpty(); |
1527 | const bool usedPipe = request->body_pipe != NULL && | |
26ac0430 | 1528 | request->body_pipe->consumedSize() > 0; |
3b299123 | 1529 | |
9d4d7c5e | 1530 | if (bypassable && !usedStore && !usedPipe) { |
1531 | debugs(85,3, HERE << "ICAP REQMOD callout failed, bypassing: " << calloutContext); | |
5f8252d2 | 1532 | if (calloutContext) |
1533 | doCallouts(); | |
1534 | return; | |
1535 | } | |
3b299123 | 1536 | |
5f8252d2 | 1537 | debugs(85,3, HERE << "ICAP REQMOD callout failed, responding with error"); |
3b299123 | 1538 | |
5f8252d2 | 1539 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->prev->data; |
1540 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1541 | assert(repContext); | |
de31d06f | 1542 | |
26ac0430 | 1543 | // The original author of the code also wanted to pass an errno to |
5f8252d2 | 1544 | // setReplyToError, but it seems unlikely that the errno reflects the |
1545 | // true cause of the error at this point, so I did not pass it. | |
b7ac5457 | 1546 | Ip::Address noAddr; |
b70ba605 | 1547 | noAddr.SetNoAddr(); |
1cf238db | 1548 | ConnStateData * c = getConn(); |
5f8252d2 | 1549 | repContext->setReplyToError(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR, |
26ac0430 AJ |
1550 | request->method, NULL, |
1551 | (c != NULL ? c->peer : noAddr), request, NULL, | |
a33a428a | 1552 | (c != NULL && c->auth_user_request != NULL ? |
26ac0430 | 1553 | c->auth_user_request : request->auth_user_request)); |
de31d06f | 1554 | |
64b66b76 CT |
1555 | request->detailError(ERR_ICAP_FAILURE, errDetail); |
1556 | ||
5f8252d2 | 1557 | node = (clientStreamNode *)client_stream.tail->data; |
1558 | clientStreamRead(node, this, node->readBuffer); | |
de31d06f | 1559 | } |
1560 | ||
1561 | #endif |