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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" |
1adcebc3 | 50 | #include "adaptation/Answer.h" |
a22e6cd3 | 51 | #include "adaptation/Iterator.h" |
abd4b611 | 52 | #include "adaptation/Service.h" |
3ff65596 AR |
53 | #if ICAP_CLIENT |
54 | #include "adaptation/icap/History.h" | |
55 | #endif | |
de31d06f | 56 | #endif |
2f1431ea | 57 | #if USE_AUTH |
27bc2077 | 58 | #include "auth/UserRequest.h" |
2f1431ea | 59 | #endif |
27bc2077 AJ |
60 | #include "clientStream.h" |
61 | #include "client_side.h" | |
62 | #include "client_side_reply.h" | |
63 | #include "client_side_request.h" | |
64 | #include "ClientRequestContext.h" | |
ec41b64c | 65 | #include "comm/Write.h" |
27bc2077 AJ |
66 | #include "compat/inet_pton.h" |
67 | #include "fde.h" | |
68 | #include "HttpReply.h" | |
69 | #include "HttpRequest.h" | |
425de4c8 | 70 | #include "ip/QosConfig.h" |
8432e271 | 71 | #include "log/Tokens.h" |
27bc2077 AJ |
72 | #include "MemObject.h" |
73 | #include "ProtoPort.h" | |
74 | #include "Store.h" | |
75 | #include "SquidTime.h" | |
76 | #include "wordlist.h" | |
64b66b76 | 77 | #include "err_detail_type.h" |
4db984be CT |
78 | #if USE_SSL |
79 | #include "ssl/support.h" | |
80 | #endif | |
3ff65596 AR |
81 | |
82 | ||
edce4d98 | 83 | #if LINGERING_CLOSE |
84 | #define comm_close comm_lingering_close | |
85 | #endif | |
86 | ||
87 | static const char *const crlf = "\r\n"; | |
88 | ||
609c620a | 89 | #if FOLLOW_X_FORWARDED_FOR |
3d674977 AJ |
90 | static void |
91 | clientFollowXForwardedForCheck(int answer, void *data); | |
609c620a | 92 | #endif /* FOLLOW_X_FORWARDED_FOR */ |
3d674977 | 93 | |
8e2745f4 | 94 | CBDATA_CLASS_INIT(ClientRequestContext); |
95 | ||
96 | void * | |
97 | ClientRequestContext::operator new (size_t size) | |
98 | { | |
99 | assert (size == sizeof(ClientRequestContext)); | |
100 | CBDATA_INIT_TYPE(ClientRequestContext); | |
101 | ClientRequestContext *result = cbdataAlloc(ClientRequestContext); | |
aa625860 | 102 | return result; |
8e2745f4 | 103 | } |
62e76326 | 104 | |
8e2745f4 | 105 | void |
106 | ClientRequestContext::operator delete (void *address) | |
107 | { | |
108 | ClientRequestContext *t = static_cast<ClientRequestContext *>(address); | |
aa625860 | 109 | cbdataFree(t); |
8e2745f4 | 110 | } |
111 | ||
edce4d98 | 112 | /* Local functions */ |
edce4d98 | 113 | /* other */ |
de31d06f | 114 | static void clientAccessCheckDoneWrapper(int, void *); |
59a1efb2 | 115 | static int clientHierarchical(ClientHttpRequest * http); |
116 | static void clientInterpretRequestHeaders(ClientHttpRequest * http); | |
de31d06f | 117 | static RH clientRedirectDoneWrapper; |
118 | static PF checkNoCacheDoneWrapper; | |
e6ccf245 | 119 | extern "C" CSR clientGetMoreData; |
120 | extern "C" CSS clientReplyStatus; | |
121 | extern "C" CSD clientReplyDetach; | |
528b2c61 | 122 | static void checkFailureRatio(err_type, hier_code); |
edce4d98 | 123 | |
8e2745f4 | 124 | ClientRequestContext::~ClientRequestContext() |
125 | { | |
de31d06f | 126 | /* |
a546b04b | 127 | * Release our "lock" on our parent, ClientHttpRequest, if we |
128 | * still have one | |
de31d06f | 129 | */ |
a546b04b | 130 | |
131 | if (http) | |
132 | cbdataReferenceDone(http); | |
62e76326 | 133 | |
5f8252d2 | 134 | debugs(85,3, HERE << this << " ClientRequestContext destructed"); |
8e2745f4 | 135 | } |
136 | ||
4e2eb5c3 | 137 | ClientRequestContext::ClientRequestContext(ClientHttpRequest *anHttp) : http(cbdataReference(anHttp)), acl_checklist (NULL), redirect_state (REDIRECT_NONE) |
edce4d98 | 138 | { |
57abaac0 | 139 | http_access_done = false; |
140 | redirect_done = false; | |
141 | no_cache_done = false; | |
142 | interpreted_req_hdrs = false; | |
0b86805b | 143 | debugs(85,3, HERE << this << " ClientRequestContext constructed"); |
edce4d98 | 144 | } |
145 | ||
528b2c61 | 146 | CBDATA_CLASS_INIT(ClientHttpRequest); |
8e2745f4 | 147 | |
528b2c61 | 148 | void * |
149 | ClientHttpRequest::operator new (size_t size) | |
150 | { | |
151 | assert (size == sizeof (ClientHttpRequest)); | |
152 | CBDATA_INIT_TYPE(ClientHttpRequest); | |
153 | ClientHttpRequest *result = cbdataAlloc(ClientHttpRequest); | |
aa625860 | 154 | return result; |
528b2c61 | 155 | } |
156 | ||
62e76326 | 157 | void |
528b2c61 | 158 | ClientHttpRequest::operator delete (void *address) |
159 | { | |
aa625860 | 160 | ClientHttpRequest *t = static_cast<ClientHttpRequest *>(address); |
161 | cbdataFree(t); | |
528b2c61 | 162 | } |
163 | ||
26ac0430 | 164 | ClientHttpRequest::ClientHttpRequest(ConnStateData * aConn) : |
a83c6ed6 | 165 | #if USE_ADAPTATION |
26ac0430 | 166 | AsyncJob("ClientHttpRequest"), |
1cf238db | 167 | #endif |
26ac0430 | 168 | loggingEntry_(NULL) |
528b2c61 | 169 | { |
1cf238db | 170 | start_time = current_time; |
a0355e95 | 171 | setConn(aConn); |
172 | dlinkAdd(this, &active, &ClientActiveRequests); | |
a83c6ed6 | 173 | #if USE_ADAPTATION |
b044675d | 174 | request_satisfaction_mode = false; |
175 | #endif | |
528b2c61 | 176 | } |
177 | ||
0655fa4d | 178 | /* |
179 | * returns true if client specified that the object must come from the cache | |
180 | * without contacting origin server | |
181 | */ | |
182 | bool | |
183 | ClientHttpRequest::onlyIfCached()const | |
184 | { | |
185 | assert(request); | |
186 | return request->cache_control && | |
187 | EBIT_TEST(request->cache_control->mask, CC_ONLY_IF_CACHED); | |
188 | } | |
189 | ||
528b2c61 | 190 | /* |
191 | * This function is designed to serve a fairly specific purpose. | |
192 | * Occasionally our vBNS-connected caches can talk to each other, but not | |
193 | * the rest of the world. Here we try to detect frequent failures which | |
194 | * make the cache unusable (e.g. DNS lookup and connect() failures). If | |
195 | * the failure:success ratio goes above 1.0 then we go into "hit only" | |
196 | * mode where we only return UDP_HIT or UDP_MISS_NOFETCH. Neighbors | |
197 | * will only fetch HITs from us if they are using the ICP protocol. We | |
198 | * stay in this mode for 5 minutes. | |
26ac0430 | 199 | * |
528b2c61 | 200 | * Duane W., Sept 16, 1996 |
201 | */ | |
202 | ||
203 | #define FAILURE_MODE_TIME 300 | |
204 | ||
205 | static void | |
206 | checkFailureRatio(err_type etype, hier_code hcode) | |
207 | { | |
208 | static double magic_factor = 100.0; | |
209 | double n_good; | |
210 | double n_bad; | |
62e76326 | 211 | |
528b2c61 | 212 | if (hcode == HIER_NONE) |
62e76326 | 213 | return; |
214 | ||
528b2c61 | 215 | n_good = magic_factor / (1.0 + request_failure_ratio); |
62e76326 | 216 | |
528b2c61 | 217 | n_bad = magic_factor - n_good; |
62e76326 | 218 | |
528b2c61 | 219 | switch (etype) { |
62e76326 | 220 | |
528b2c61 | 221 | case ERR_DNS_FAIL: |
62e76326 | 222 | |
528b2c61 | 223 | case ERR_CONNECT_FAIL: |
3712be3f | 224 | case ERR_SECURE_CONNECT_FAIL: |
62e76326 | 225 | |
528b2c61 | 226 | case ERR_READ_ERROR: |
62e76326 | 227 | n_bad++; |
228 | break; | |
229 | ||
528b2c61 | 230 | default: |
62e76326 | 231 | n_good++; |
528b2c61 | 232 | } |
62e76326 | 233 | |
528b2c61 | 234 | request_failure_ratio = n_bad / n_good; |
62e76326 | 235 | |
528b2c61 | 236 | if (hit_only_mode_until > squid_curtime) |
62e76326 | 237 | return; |
238 | ||
528b2c61 | 239 | if (request_failure_ratio < 1.0) |
62e76326 | 240 | return; |
241 | ||
bf8fe701 | 242 | debugs(33, 0, "Failure Ratio at "<< std::setw(4)<< |
243 | std::setprecision(3) << request_failure_ratio); | |
62e76326 | 244 | |
bf8fe701 | 245 | debugs(33, 0, "Going into hit-only-mode for " << |
246 | FAILURE_MODE_TIME / 60 << " minutes..."); | |
62e76326 | 247 | |
528b2c61 | 248 | hit_only_mode_until = squid_curtime + FAILURE_MODE_TIME; |
62e76326 | 249 | |
528b2c61 | 250 | request_failure_ratio = 0.8; /* reset to something less than 1.0 */ |
251 | } | |
252 | ||
253 | ClientHttpRequest::~ClientHttpRequest() | |
254 | { | |
bf8fe701 | 255 | debugs(33, 3, "httpRequestFree: " << uri); |
72bdee4c | 256 | PROF_start(httpRequestFree); |
62e76326 | 257 | |
5f8252d2 | 258 | // Even though freeResources() below may destroy the request, |
259 | // we no longer set request->body_pipe to NULL here | |
260 | // because we did not initiate that pipe (ConnStateData did) | |
62e76326 | 261 | |
528b2c61 | 262 | /* the ICP check here was erroneous |
26ac0430 | 263 | * - StoreEntry::releaseRequest was always called if entry was valid |
528b2c61 | 264 | */ |
265 | assert(logType < LOG_TYPE_MAX); | |
9ce7856a | 266 | |
528b2c61 | 267 | logRequest(); |
9ce7856a | 268 | |
0976f8db | 269 | loggingEntry(NULL); |
270 | ||
528b2c61 | 271 | if (request) |
62e76326 | 272 | checkFailureRatio(request->errType, al.hier.code); |
273 | ||
528b2c61 | 274 | freeResources(); |
62e76326 | 275 | |
a83c6ed6 AR |
276 | #if USE_ADAPTATION |
277 | announceInitiatorAbort(virginHeadSource); | |
9d4d7c5e | 278 | |
a83c6ed6 AR |
279 | if (adaptedBodySource != NULL) |
280 | stopConsumingFrom(adaptedBodySource); | |
de31d06f | 281 | #endif |
9ce7856a | 282 | |
de31d06f | 283 | if (calloutContext) |
284 | delete calloutContext; | |
285 | ||
26ac0430 AJ |
286 | if (conn_) |
287 | cbdataReferenceDone(conn_); | |
1cf238db | 288 | |
528b2c61 | 289 | /* moving to the next connection is handled by the context free */ |
290 | dlinkDelete(&active, &ClientActiveRequests); | |
9ce7856a | 291 | |
72bdee4c | 292 | PROF_stop(httpRequestFree); |
528b2c61 | 293 | } |
62e76326 | 294 | |
11992b6f AJ |
295 | /** |
296 | * Create a request and kick it off | |
297 | * | |
298 | * \retval 0 success | |
299 | * \retval -1 failure | |
300 | * | |
69660be0 | 301 | * TODO: Pass in the buffers to be used in the inital Read request, as they are |
302 | * determined by the user | |
edce4d98 | 303 | */ |
11992b6f | 304 | int |
60745f24 | 305 | clientBeginRequest(const HttpRequestMethod& method, char const *url, CSCB * streamcallback, |
0655fa4d | 306 | CSD * streamdetach, ClientStreamData streamdata, HttpHeader const *header, |
62e76326 | 307 | char *tailbuf, size_t taillen) |
edce4d98 | 308 | { |
309 | size_t url_sz; | |
a0355e95 | 310 | ClientHttpRequest *http = new ClientHttpRequest(NULL); |
190154cf | 311 | HttpRequest *request; |
528b2c61 | 312 | StoreIOBuffer tempBuffer; |
1cf238db | 313 | http->start_time = current_time; |
edce4d98 | 314 | /* this is only used to adjust the connection offset in client_side.c */ |
315 | http->req_sz = 0; | |
c8be6d7b | 316 | tempBuffer.length = taillen; |
317 | tempBuffer.data = tailbuf; | |
edce4d98 | 318 | /* client stream setup */ |
319 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, | |
0655fa4d | 320 | clientReplyStatus, new clientReplyContext(http), streamcallback, |
62e76326 | 321 | streamdetach, streamdata, tempBuffer); |
edce4d98 | 322 | /* make it visible in the 'current acctive requests list' */ |
edce4d98 | 323 | /* Set flags */ |
a46d2c0e | 324 | /* internal requests only makes sense in an |
325 | * accelerator today. TODO: accept flags ? */ | |
326 | http->flags.accel = 1; | |
edce4d98 | 327 | /* allow size for url rewriting */ |
328 | url_sz = strlen(url) + Config.appendDomainLen + 5; | |
e6ccf245 | 329 | http->uri = (char *)xcalloc(url_sz, 1); |
edce4d98 | 330 | strcpy(http->uri, url); |
331 | ||
c21ad0f5 | 332 | if ((request = HttpRequest::CreateFromUrlAndMethod(http->uri, method)) == NULL) { |
bf8fe701 | 333 | debugs(85, 5, "Invalid URL: " << http->uri); |
62e76326 | 334 | return -1; |
edce4d98 | 335 | } |
62e76326 | 336 | |
69660be0 | 337 | /* |
11992b6f | 338 | * now update the headers in request with our supplied headers. urlParse |
69660be0 | 339 | * should return a blank header set, but we use Update to be sure of |
340 | * correctness. | |
edce4d98 | 341 | */ |
342 | if (header) | |
a9925b40 | 343 | request->header.update(header, NULL); |
62e76326 | 344 | |
edce4d98 | 345 | http->log_uri = xstrdup(urlCanonicalClean(request)); |
62e76326 | 346 | |
edce4d98 | 347 | /* http struct now ready */ |
348 | ||
69660be0 | 349 | /* |
350 | * build new header list *? TODO | |
edce4d98 | 351 | */ |
352 | request->flags.accelerated = http->flags.accel; | |
62e76326 | 353 | |
a46d2c0e | 354 | request->flags.internalclient = 1; |
355 | ||
356 | /* this is an internally created | |
357 | * request, not subject to acceleration | |
358 | * target overrides */ | |
69660be0 | 359 | /* |
360 | * FIXME? Do we want to detect and handle internal requests of internal | |
361 | * objects ? | |
362 | */ | |
edce4d98 | 363 | |
364 | /* Internally created requests cannot have bodies today */ | |
365 | request->content_length = 0; | |
62e76326 | 366 | |
cc192b50 | 367 | request->client_addr.SetNoAddr(); |
62e76326 | 368 | |
3d674977 AJ |
369 | #if FOLLOW_X_FORWARDED_FOR |
370 | request->indirect_client_addr.SetNoAddr(); | |
371 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
26ac0430 | 372 | |
cc192b50 | 373 | request->my_addr.SetNoAddr(); /* undefined for internal requests */ |
62e76326 | 374 | |
cc192b50 | 375 | request->my_addr.SetPort(0); |
62e76326 | 376 | |
3872be7c AJ |
377 | /* Our version is HTTP/1.1 */ |
378 | HttpVersion http_ver(1,1); | |
edce4d98 | 379 | request->http_ver = http_ver; |
62e76326 | 380 | |
6dd9f4bd | 381 | http->request = HTTPMSGLOCK(request); |
edce4d98 | 382 | |
383 | /* optional - skip the access check ? */ | |
de31d06f | 384 | http->calloutContext = new ClientRequestContext(http); |
385 | ||
57abaac0 | 386 | http->calloutContext->http_access_done = false; |
de31d06f | 387 | |
57abaac0 | 388 | http->calloutContext->redirect_done = true; |
de31d06f | 389 | |
57abaac0 | 390 | http->calloutContext->no_cache_done = true; |
de31d06f | 391 | |
392 | http->doCallouts(); | |
62e76326 | 393 | |
edce4d98 | 394 | return 0; |
395 | } | |
396 | ||
de31d06f | 397 | bool |
398 | ClientRequestContext::httpStateIsValid() | |
399 | { | |
400 | ClientHttpRequest *http_ = http; | |
401 | ||
402 | if (cbdataReferenceValid(http_)) | |
403 | return true; | |
404 | ||
405 | http = NULL; | |
406 | ||
407 | cbdataReferenceDone(http_); | |
408 | ||
409 | return false; | |
410 | } | |
411 | ||
3d674977 AJ |
412 | #if FOLLOW_X_FORWARDED_FOR |
413 | /** | |
a9044668 | 414 | * clientFollowXForwardedForCheck() checks the content of X-Forwarded-For: |
3d674977 AJ |
415 | * against the followXFF ACL, or cleans up and passes control to |
416 | * clientAccessCheck(). | |
d096ace1 AJ |
417 | * |
418 | * The trust model here is a little ambiguous. So to clarify the logic: | |
419 | * - we may always use the direct client address as the client IP. | |
a9044668 | 420 | * - these trust tests merey tell whether we trust given IP enough to believe the |
d096ace1 AJ |
421 | * IP string which it appended to the X-Forwarded-For: header. |
422 | * - if at any point we don't trust what an IP adds we stop looking. | |
423 | * - at that point the current contents of indirect_client_addr are the value set | |
424 | * by the last previously trusted IP. | |
425 | * ++ indirect_client_addr contains the remote direct client from the trusted peers viewpoint. | |
3d674977 | 426 | */ |
3d674977 AJ |
427 | static void |
428 | clientFollowXForwardedForCheck(int answer, void *data) | |
429 | { | |
430 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; | |
3d674977 AJ |
431 | |
432 | if (!calloutContext->httpStateIsValid()) | |
433 | return; | |
434 | ||
d096ace1 AJ |
435 | ClientHttpRequest *http = calloutContext->http; |
436 | HttpRequest *request = http->request; | |
437 | ||
3d674977 AJ |
438 | /* |
439 | * answer should be be ACCESS_ALLOWED or ACCESS_DENIED if we are | |
440 | * called as a result of ACL checks, or -1 if we are called when | |
441 | * there's nothing left to do. | |
442 | */ | |
443 | if (answer == ACCESS_ALLOWED && | |
26ac0430 | 444 | request->x_forwarded_for_iterator.size () != 0) { |
d096ace1 | 445 | |
3d674977 | 446 | /* |
d096ace1 AJ |
447 | * Remove the last comma-delimited element from the |
448 | * x_forwarded_for_iterator and use it to repeat the cycle. | |
449 | */ | |
3d674977 AJ |
450 | const char *p; |
451 | const char *asciiaddr; | |
452 | int l; | |
b7ac5457 | 453 | Ip::Address addr; |
bb790702 | 454 | p = request->x_forwarded_for_iterator.termedBuf(); |
3d674977 AJ |
455 | l = request->x_forwarded_for_iterator.size(); |
456 | ||
457 | /* | |
458 | * XXX x_forwarded_for_iterator should really be a list of | |
459 | * IP addresses, but it's a String instead. We have to | |
460 | * walk backwards through the String, biting off the last | |
461 | * comma-delimited part each time. As long as the data is in | |
462 | * a String, we should probably implement and use a variant of | |
463 | * strListGetItem() that walks backwards instead of forwards | |
464 | * through a comma-separated list. But we don't even do that; | |
465 | * we just do the work in-line here. | |
466 | */ | |
467 | /* skip trailing space and commas */ | |
468 | while (l > 0 && (p[l-1] == ',' || xisspace(p[l-1]))) | |
469 | l--; | |
470 | request->x_forwarded_for_iterator.cut(l); | |
471 | /* look for start of last item in list */ | |
472 | while (l > 0 && ! (p[l-1] == ',' || xisspace(p[l-1]))) | |
473 | l--; | |
474 | asciiaddr = p+l; | |
fafd0efa | 475 | if ((addr = asciiaddr)) { |
3d674977 AJ |
476 | request->indirect_client_addr = addr; |
477 | request->x_forwarded_for_iterator.cut(l); | |
d096ace1 AJ |
478 | calloutContext->acl_checklist = clientAclChecklistCreate(Config.accessList.followXFF, http); |
479 | if (!Config.onoff.acl_uses_indirect_client) { | |
480 | /* override the default src_addr tested if we have to go deeper than one level into XFF */ | |
481 | Filled(calloutContext->acl_checklist)->src_addr = request->indirect_client_addr; | |
3d674977 | 482 | } |
d096ace1 | 483 | calloutContext->acl_checklist->nonBlockingCheck(clientFollowXForwardedForCheck, data); |
3d674977 AJ |
484 | return; |
485 | } | |
486 | } /*if (answer == ACCESS_ALLOWED && | |
487 | request->x_forwarded_for_iterator.size () != 0)*/ | |
488 | ||
489 | /* clean up, and pass control to clientAccessCheck */ | |
26ac0430 | 490 | if (Config.onoff.log_uses_indirect_client) { |
3d674977 AJ |
491 | /* |
492 | * Ensure that the access log shows the indirect client | |
493 | * instead of the direct client. | |
494 | */ | |
495 | ConnStateData *conn = http->getConn(); | |
496 | conn->log_addr = request->indirect_client_addr; | |
497 | } | |
498 | request->x_forwarded_for_iterator.clean(); | |
499 | request->flags.done_follow_x_forwarded_for = 1; | |
500 | ||
d096ace1 AJ |
501 | if (answer != ACCESS_ALLOWED && answer != ACCESS_DENIED) { |
502 | debugs(28, DBG_CRITICAL, "ERROR: Processing X-Forwarded-For. Stopping at IP address: " << request->indirect_client_addr ); | |
493d3865 AJ |
503 | } |
504 | ||
505 | /* process actual access ACL as normal. */ | |
506 | calloutContext->clientAccessCheck(); | |
3d674977 AJ |
507 | } |
508 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
509 | ||
edce4d98 | 510 | /* This is the entry point for external users of the client_side routines */ |
511 | void | |
de31d06f | 512 | ClientRequestContext::clientAccessCheck() |
edce4d98 | 513 | { |
3d674977 AJ |
514 | #if FOLLOW_X_FORWARDED_FOR |
515 | if (!http->request->flags.done_follow_x_forwarded_for && | |
26ac0430 AJ |
516 | Config.accessList.followXFF && |
517 | http->request->header.has(HDR_X_FORWARDED_FOR)) { | |
d096ace1 AJ |
518 | |
519 | /* we always trust the direct client address for actual use */ | |
520 | http->request->indirect_client_addr = http->request->client_addr; | |
fafd0efa | 521 | http->request->indirect_client_addr.SetPort(0); |
d096ace1 AJ |
522 | |
523 | /* setup the XFF iterator for processing */ | |
524 | http->request->x_forwarded_for_iterator = http->request->header.getList(HDR_X_FORWARDED_FOR); | |
525 | ||
526 | /* begin by checking to see if we trust direct client enough to walk XFF */ | |
527 | acl_checklist = clientAclChecklistCreate(Config.accessList.followXFF, http); | |
528 | acl_checklist->nonBlockingCheck(clientFollowXForwardedForCheck, this); | |
3d674977 AJ |
529 | return; |
530 | } | |
531 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
493d3865 | 532 | |
b50e327b AJ |
533 | if (Config.accessList.http) { |
534 | acl_checklist = clientAclChecklistCreate(Config.accessList.http, http); | |
535 | acl_checklist->nonBlockingCheck(clientAccessCheckDoneWrapper, this); | |
536 | } else { | |
537 | debugs(0, DBG_CRITICAL, "No http_access configuration found. This will block ALL traffic"); | |
538 | clientAccessCheckDone(ACCESS_DENIED); | |
539 | } | |
edce4d98 | 540 | } |
541 | ||
533493da AJ |
542 | /** |
543 | * Identical in operation to clientAccessCheck() but performed later using different configured ACL list. | |
544 | * The default here is to allow all. Since the earlier http_access should do a default deny all. | |
545 | * This check is just for a last-minute denial based on adapted request headers. | |
546 | */ | |
547 | void | |
548 | ClientRequestContext::clientAccessCheck2() | |
549 | { | |
550 | if (Config.accessList.adapted_http) { | |
551 | acl_checklist = clientAclChecklistCreate(Config.accessList.adapted_http, http); | |
552 | acl_checklist->nonBlockingCheck(clientAccessCheckDoneWrapper, this); | |
553 | } else { | |
554 | debugs(85, 2, HERE << "No adapted_http_access configuration."); | |
555 | clientAccessCheckDone(ACCESS_ALLOWED); | |
556 | } | |
557 | } | |
558 | ||
edce4d98 | 559 | void |
de31d06f | 560 | clientAccessCheckDoneWrapper(int answer, void *data) |
edce4d98 | 561 | { |
de31d06f | 562 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; |
fbade053 | 563 | |
de31d06f | 564 | if (!calloutContext->httpStateIsValid()) |
62e76326 | 565 | return; |
62e76326 | 566 | |
de31d06f | 567 | calloutContext->clientAccessCheckDone(answer); |
568 | } | |
569 | ||
570 | void | |
571 | ClientRequestContext::clientAccessCheckDone(int answer) | |
572 | { | |
573 | acl_checklist = NULL; | |
edce4d98 | 574 | err_type page_id; |
575 | http_status status; | |
26ac0430 AJ |
576 | debugs(85, 2, "The request " << |
577 | RequestMethodStr(http->request->method) << " " << | |
578 | http->uri << " is " << | |
579 | (answer == ACCESS_ALLOWED ? "ALLOWED" : "DENIED") << | |
580 | ", because it matched '" << | |
581 | (AclMatchedName ? AclMatchedName : "NO ACL's") << "'" ); | |
f5691f9c | 582 | |
2f1431ea AJ |
583 | #if USE_AUTH |
584 | char const *proxy_auth_msg = "<null>"; | |
94a396a3 | 585 | if (http->getConn() != NULL && http->getConn()->auth_user_request != NULL) |
f5691f9c | 586 | proxy_auth_msg = http->getConn()->auth_user_request->denyMessage("<null>"); |
587 | else if (http->request->auth_user_request != NULL) | |
588 | proxy_auth_msg = http->request->auth_user_request->denyMessage("<null>"); | |
2f1431ea | 589 | #endif |
62e76326 | 590 | |
de31d06f | 591 | if (answer != ACCESS_ALLOWED) { |
62e76326 | 592 | /* Send an error */ |
9ce7856a | 593 | int require_auth = (answer == ACCESS_REQ_PROXY_AUTH || aclIsProxyAuth(AclMatchedName)); |
bf8fe701 | 594 | debugs(85, 5, "Access Denied: " << http->uri); |
595 | debugs(85, 5, "AclMatchedName = " << (AclMatchedName ? AclMatchedName : "<null>")); | |
2f1431ea | 596 | #if USE_AUTH |
9ce7856a | 597 | if (require_auth) |
bf8fe701 | 598 | debugs(33, 5, "Proxy Auth Message = " << (proxy_auth_msg ? proxy_auth_msg : "<null>")); |
2f1431ea | 599 | #endif |
9ce7856a | 600 | |
62e76326 | 601 | /* |
602 | * NOTE: get page_id here, based on AclMatchedName because if | |
603 | * USE_DELAY_POOLS is enabled, then AclMatchedName gets clobbered in | |
604 | * the clientCreateStoreEntry() call just below. Pedro Ribeiro | |
605 | * <pribeiro@isel.pt> | |
606 | */ | |
9ce7856a | 607 | page_id = aclGetDenyInfoPage(&Config.denyInfoList, AclMatchedName, answer != ACCESS_REQ_PROXY_AUTH); |
608 | ||
62e76326 | 609 | http->logType = LOG_TCP_DENIED; |
610 | ||
9ce7856a | 611 | if (require_auth) { |
2f1431ea | 612 | #if USE_AUTH |
62e76326 | 613 | if (!http->flags.accel) { |
614 | /* Proxy authorisation needed */ | |
615 | status = HTTP_PROXY_AUTHENTICATION_REQUIRED; | |
616 | } else { | |
617 | /* WWW authorisation needed */ | |
618 | status = HTTP_UNAUTHORIZED; | |
619 | } | |
2f1431ea AJ |
620 | #else |
621 | // need auth, but not possible to do. | |
622 | status = HTTP_FORBIDDEN; | |
623 | #endif | |
62e76326 | 624 | if (page_id == ERR_NONE) |
625 | page_id = ERR_CACHE_ACCESS_DENIED; | |
626 | } else { | |
627 | status = HTTP_FORBIDDEN; | |
628 | ||
629 | if (page_id == ERR_NONE) | |
630 | page_id = ERR_ACCESS_DENIED; | |
631 | } | |
632 | ||
de31d06f | 633 | clientStreamNode *node = (clientStreamNode *)http->client_stream.tail->prev->data; |
0655fa4d | 634 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
635 | assert (repContext); | |
b7ac5457 | 636 | Ip::Address tmpnoaddr; |
26ac0430 | 637 | tmpnoaddr.SetNoAddr(); |
0655fa4d | 638 | repContext->setReplyToError(page_id, status, |
639 | http->request->method, NULL, | |
cc192b50 | 640 | http->getConn() != NULL ? http->getConn()->peer : tmpnoaddr, |
641 | http->request, | |
642 | NULL, | |
2f1431ea | 643 | #if USE_AUTH |
a33a428a | 644 | http->getConn() != NULL && http->getConn()->auth_user_request != NULL ? |
cc192b50 | 645 | http->getConn()->auth_user_request : http->request->auth_user_request); |
2f1431ea AJ |
646 | #else |
647 | NULL); | |
648 | #endif | |
62e76326 | 649 | node = (clientStreamNode *)http->client_stream.tail->data; |
650 | clientStreamRead(node, http, node->readBuffer); | |
a546b04b | 651 | return; |
edce4d98 | 652 | } |
de31d06f | 653 | |
654 | /* ACCESS_ALLOWED continues here ... */ | |
655 | safe_free(http->uri); | |
656 | ||
657 | http->uri = xstrdup(urlCanonical(http->request)); | |
658 | ||
659 | http->doCallouts(); | |
660 | } | |
661 | ||
a83c6ed6 | 662 | #if USE_ADAPTATION |
de31d06f | 663 | static void |
a22e6cd3 | 664 | adaptationAclCheckDoneWrapper(Adaptation::ServiceGroupPointer g, void *data) |
de31d06f | 665 | { |
666 | ClientRequestContext *calloutContext = (ClientRequestContext *)data; | |
667 | ||
668 | if (!calloutContext->httpStateIsValid()) | |
669 | return; | |
670 | ||
a22e6cd3 | 671 | calloutContext->adaptationAclCheckDone(g); |
de31d06f | 672 | } |
673 | ||
674 | void | |
a22e6cd3 | 675 | ClientRequestContext::adaptationAclCheckDone(Adaptation::ServiceGroupPointer g) |
de31d06f | 676 | { |
a83c6ed6 | 677 | debugs(93,3,HERE << this << " adaptationAclCheckDone called"); |
6ec67de9 | 678 | assert(http); |
679 | ||
e1381638 | 680 | #if ICAP_CLIENT |
3ff65596 | 681 | Adaptation::Icap::History::Pointer ih = http->request->icapHistory(); |
e1381638 AJ |
682 | if (ih != NULL) { |
683 | if (http->getConn() != NULL) { | |
3ff65596 | 684 | ih->rfc931 = http->getConn()->rfc931; |
e1381638 | 685 | #if USE_SSL |
3ff65596 | 686 | ih->ssluser = sslGetUserEmail(fd_table[http->getConn()->fd].ssl); |
e1381638 | 687 | #endif |
3ff65596 AR |
688 | } |
689 | ih->log_uri = http->log_uri; | |
690 | ih->req_sz = http->req_sz; | |
691 | } | |
692 | #endif | |
693 | ||
a22e6cd3 AR |
694 | if (!g) { |
695 | debugs(85,3, HERE << "no adaptation needed"); | |
5f8252d2 | 696 | http->doCallouts(); |
697 | return; | |
698 | } | |
de31d06f | 699 | |
a22e6cd3 | 700 | http->startAdaptation(g); |
edce4d98 | 701 | } |
702 | ||
de31d06f | 703 | #endif |
704 | ||
14cc8559 | 705 | static void |
706 | clientRedirectAccessCheckDone(int answer, void *data) | |
707 | { | |
708 | ClientRequestContext *context = (ClientRequestContext *)data; | |
59a1efb2 | 709 | ClientHttpRequest *http = context->http; |
14cc8559 | 710 | context->acl_checklist = NULL; |
711 | ||
712 | if (answer == ACCESS_ALLOWED) | |
de31d06f | 713 | redirectStart(http, clientRedirectDoneWrapper, context); |
14cc8559 | 714 | else |
de31d06f | 715 | context->clientRedirectDone(NULL); |
14cc8559 | 716 | } |
717 | ||
de31d06f | 718 | void |
719 | ClientRequestContext::clientRedirectStart() | |
14cc8559 | 720 | { |
bf8fe701 | 721 | debugs(33, 5, "clientRedirectStart: '" << http->uri << "'"); |
14cc8559 | 722 | |
14cc8559 | 723 | if (Config.accessList.redirector) { |
de31d06f | 724 | acl_checklist = clientAclChecklistCreate(Config.accessList.redirector, http); |
725 | acl_checklist->nonBlockingCheck(clientRedirectAccessCheckDone, this); | |
14cc8559 | 726 | } else |
de31d06f | 727 | redirectStart(http, clientRedirectDoneWrapper, this); |
14cc8559 | 728 | } |
729 | ||
edce4d98 | 730 | static int |
59a1efb2 | 731 | clientHierarchical(ClientHttpRequest * http) |
edce4d98 | 732 | { |
733 | const char *url = http->uri; | |
190154cf | 734 | HttpRequest *request = http->request; |
60745f24 | 735 | HttpRequestMethod method = request->method; |
edce4d98 | 736 | const wordlist *p = NULL; |
737 | ||
69660be0 | 738 | /* |
739 | * IMS needs a private key, so we can use the hierarchy for IMS only if our | |
740 | * neighbors support private keys | |
741 | */ | |
62e76326 | 742 | |
edce4d98 | 743 | if (request->flags.ims && !neighbors_do_private_keys) |
62e76326 | 744 | return 0; |
745 | ||
69660be0 | 746 | /* |
747 | * This is incorrect: authenticating requests can be sent via a hierarchy | |
06b97e72 | 748 | * (they can even be cached if the correct headers are set on the reply) |
edce4d98 | 749 | */ |
750 | if (request->flags.auth) | |
62e76326 | 751 | return 0; |
752 | ||
edce4d98 | 753 | if (method == METHOD_TRACE) |
62e76326 | 754 | return 1; |
755 | ||
edce4d98 | 756 | if (method != METHOD_GET) |
62e76326 | 757 | return 0; |
758 | ||
edce4d98 | 759 | /* scan hierarchy_stoplist */ |
760 | for (p = Config.hierarchy_stoplist; p; p = p->next) | |
62e76326 | 761 | if (strstr(url, p->key)) |
762 | return 0; | |
763 | ||
edce4d98 | 764 | if (request->flags.loopdetect) |
62e76326 | 765 | return 0; |
766 | ||
0c3d3f65 | 767 | if (request->protocol == AnyP::PROTO_HTTP) |
62e76326 | 768 | return httpCachable(method); |
769 | ||
0c3d3f65 | 770 | if (request->protocol == AnyP::PROTO_GOPHER) |
62e76326 | 771 | return gopherCachable(request); |
772 | ||
39a19cb7 | 773 | if (request->protocol == AnyP::PROTO_CACHE_OBJECT) |
62e76326 | 774 | return 0; |
775 | ||
edce4d98 | 776 | return 1; |
777 | } | |
778 | ||
46a1f562 HN |
779 | static void |
780 | clientCheckPinning(ClientHttpRequest * http) | |
781 | { | |
782 | HttpRequest *request = http->request; | |
783 | HttpHeader *req_hdr = &request->header; | |
784 | ConnStateData *http_conn = http->getConn(); | |
785 | ||
786 | /* Internal requests such as those from ESI includes may be without | |
787 | * a client connection | |
788 | */ | |
789 | if (!http_conn) | |
f54f527e | 790 | return; |
46a1f562 HN |
791 | |
792 | request->flags.connection_auth_disabled = http_conn->port->connection_auth_disabled; | |
793 | if (!request->flags.connection_auth_disabled) { | |
794 | if (http_conn->pinning.fd != -1) { | |
795 | if (http_conn->pinning.auth) { | |
796 | request->flags.connection_auth = 1; | |
797 | request->flags.auth = 1; | |
798 | } else { | |
799 | request->flags.connection_proxy_auth = 1; | |
800 | } | |
b1cf2350 AJ |
801 | // These should already be linked correctly. |
802 | assert(request->clientConnectionManager == http_conn); | |
46a1f562 HN |
803 | } |
804 | } | |
805 | ||
806 | /* check if connection auth is used, and flag as candidate for pinning | |
807 | * in such case. | |
808 | * Note: we may need to set flags.connection_auth even if the connection | |
809 | * is already pinned if it was pinned earlier due to proxy auth | |
810 | */ | |
811 | if (!request->flags.connection_auth) { | |
812 | if (req_hdr->has(HDR_AUTHORIZATION) || req_hdr->has(HDR_PROXY_AUTHORIZATION)) { | |
813 | HttpHeaderPos pos = HttpHeaderInitPos; | |
814 | HttpHeaderEntry *e; | |
815 | int may_pin = 0; | |
816 | while ((e = req_hdr->getEntry(&pos))) { | |
817 | if (e->id == HDR_AUTHORIZATION || e->id == HDR_PROXY_AUTHORIZATION) { | |
818 | const char *value = e->value.rawBuf(); | |
819 | if (strncasecmp(value, "NTLM ", 5) == 0 | |
820 | || | |
821 | strncasecmp(value, "Negotiate ", 10) == 0 | |
822 | || | |
823 | strncasecmp(value, "Kerberos ", 9) == 0) { | |
824 | if (e->id == HDR_AUTHORIZATION) { | |
825 | request->flags.connection_auth = 1; | |
826 | may_pin = 1; | |
827 | } else { | |
828 | request->flags.connection_proxy_auth = 1; | |
829 | may_pin = 1; | |
830 | } | |
831 | } | |
832 | } | |
833 | } | |
834 | if (may_pin && !request->pinnedConnection()) { | |
b1cf2350 AJ |
835 | // These should already be linked correctly. Just need the ServerConnection to pinn. |
836 | assert(request->clientConnectionManager == http_conn); | |
46a1f562 HN |
837 | } |
838 | } | |
839 | } | |
840 | } | |
841 | ||
edce4d98 | 842 | static void |
59a1efb2 | 843 | clientInterpretRequestHeaders(ClientHttpRequest * http) |
edce4d98 | 844 | { |
190154cf | 845 | HttpRequest *request = http->request; |
0ef77270 | 846 | HttpHeader *req_hdr = &request->header; |
edce4d98 | 847 | int no_cache = 0; |
edce4d98 | 848 | const char *str; |
62e76326 | 849 | |
edce4d98 | 850 | request->imslen = -1; |
a9925b40 | 851 | request->ims = req_hdr->getTime(HDR_IF_MODIFIED_SINCE); |
62e76326 | 852 | |
edce4d98 | 853 | if (request->ims > 0) |
62e76326 | 854 | request->flags.ims = 1; |
855 | ||
432bc83c HN |
856 | if (!request->flags.ignore_cc) { |
857 | if (req_hdr->has(HDR_PRAGMA)) { | |
858 | String s = req_hdr->getList(HDR_PRAGMA); | |
62e76326 | 859 | |
432bc83c HN |
860 | if (strListIsMember(&s, "no-cache", ',')) |
861 | no_cache++; | |
30abd221 | 862 | |
432bc83c HN |
863 | s.clean(); |
864 | } | |
62e76326 | 865 | |
432bc83c HN |
866 | if (request->cache_control) |
867 | if (EBIT_TEST(request->cache_control->mask, CC_NO_CACHE)) | |
868 | no_cache++; | |
62e76326 | 869 | |
432bc83c HN |
870 | /* |
871 | * Work around for supporting the Reload button in IE browsers when Squid | |
872 | * is used as an accelerator or transparent proxy, by turning accelerated | |
873 | * IMS request to no-cache requests. Now knows about IE 5.5 fix (is | |
874 | * actually only fixed in SP1, but we can't tell whether we are talking to | |
875 | * SP1 or not so all 5.5 versions are treated 'normally'). | |
876 | */ | |
877 | if (Config.onoff.ie_refresh) { | |
878 | if (http->flags.accel && request->flags.ims) { | |
879 | if ((str = req_hdr->getStr(HDR_USER_AGENT))) { | |
880 | if (strstr(str, "MSIE 5.01") != NULL) | |
881 | no_cache++; | |
882 | else if (strstr(str, "MSIE 5.0") != NULL) | |
883 | no_cache++; | |
884 | else if (strstr(str, "MSIE 4.") != NULL) | |
885 | no_cache++; | |
886 | else if (strstr(str, "MSIE 3.") != NULL) | |
887 | no_cache++; | |
888 | } | |
62e76326 | 889 | } |
890 | } | |
edce4d98 | 891 | } |
914b89a2 | 892 | |
893 | if (request->method == METHOD_OTHER) { | |
26ac0430 | 894 | no_cache++; |
60745f24 | 895 | } |
62e76326 | 896 | |
edce4d98 | 897 | if (no_cache) { |
626096be | 898 | #if USE_HTTP_VIOLATIONS |
62e76326 | 899 | |
900 | if (Config.onoff.reload_into_ims) | |
901 | request->flags.nocache_hack = 1; | |
902 | else if (refresh_nocache_hack) | |
903 | request->flags.nocache_hack = 1; | |
904 | else | |
edce4d98 | 905 | #endif |
62e76326 | 906 | |
907 | request->flags.nocache = 1; | |
edce4d98 | 908 | } |
62e76326 | 909 | |
0ef77270 | 910 | /* ignore range header in non-GETs or non-HEADs */ |
911 | if (request->method == METHOD_GET || request->method == METHOD_HEAD) { | |
56713d9a AR |
912 | // XXX: initialize if we got here without HttpRequest::parseHeader() |
913 | if (!request->range) | |
914 | request->range = req_hdr->getRange(); | |
62e76326 | 915 | |
916 | if (request->range) { | |
917 | request->flags.range = 1; | |
918 | clientStreamNode *node = (clientStreamNode *)http->client_stream.tail->data; | |
919 | /* XXX: This is suboptimal. We should give the stream the range set, | |
920 | * and thereby let the top of the stream set the offset when the | |
26ac0430 | 921 | * size becomes known. As it is, we will end up requesting from 0 |
62e76326 | 922 | * for evey -X range specification. |
923 | * RBC - this may be somewhat wrong. We should probably set the range | |
924 | * iter up at this point. | |
925 | */ | |
926 | node->readBuffer.offset = request->range->lowestOffset(0); | |
927 | http->range_iter.pos = request->range->begin(); | |
928 | http->range_iter.valid = true; | |
929 | } | |
edce4d98 | 930 | } |
62e76326 | 931 | |
0ef77270 | 932 | /* Only HEAD and GET requests permit a Range or Request-Range header. |
933 | * If these headers appear on any other type of request, delete them now. | |
934 | */ | |
935 | else { | |
936 | req_hdr->delById(HDR_RANGE); | |
937 | req_hdr->delById(HDR_REQUEST_RANGE); | |
56713d9a | 938 | delete request->range; |
0ef77270 | 939 | request->range = NULL; |
940 | } | |
941 | ||
a9925b40 | 942 | if (req_hdr->has(HDR_AUTHORIZATION)) |
62e76326 | 943 | request->flags.auth = 1; |
944 | ||
46a1f562 | 945 | clientCheckPinning(http); |
d67acb4e | 946 | |
edce4d98 | 947 | if (request->login[0] != '\0') |
62e76326 | 948 | request->flags.auth = 1; |
949 | ||
a9925b40 | 950 | if (req_hdr->has(HDR_VIA)) { |
30abd221 | 951 | String s = req_hdr->getList(HDR_VIA); |
62e76326 | 952 | /* |
3c4fcf0f | 953 | * ThisCache cannot be a member of Via header, "1.1 ThisCache" can. |
62e76326 | 954 | * Note ThisCache2 has a space prepended to the hostname so we don't |
955 | * accidentally match super-domains. | |
956 | */ | |
957 | ||
958 | if (strListIsSubstr(&s, ThisCache2, ',')) { | |
959 | debugObj(33, 1, "WARNING: Forwarding loop detected for:\n", | |
960 | request, (ObjPackMethod) & httpRequestPack); | |
961 | request->flags.loopdetect = 1; | |
962 | } | |
963 | ||
21f6708d | 964 | #if USE_FORW_VIA_DB |
bb790702 | 965 | fvdbCountVia(s.termedBuf()); |
62e76326 | 966 | |
edce4d98 | 967 | #endif |
62e76326 | 968 | |
30abd221 | 969 | s.clean(); |
edce4d98 | 970 | } |
62e76326 | 971 | |
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; |
2f1431ea | 1054 | #if USE_AUTH |
a33a428a | 1055 | new_request->auth_user_request = old_request->auth_user_request; |
2f1431ea | 1056 | #endif |
5f8252d2 | 1057 | if (old_request->body_pipe != NULL) { |
1058 | new_request->body_pipe = old_request->body_pipe; | |
1059 | old_request->body_pipe = NULL; | |
4194f7b6 AJ |
1060 | debugs(61,2, HERE << "URL-rewriter diverts body_pipe " << new_request->body_pipe << |
1061 | " from request " << old_request << " to " << new_request); | |
62e76326 | 1062 | } |
1063 | ||
1064 | new_request->content_length = old_request->content_length; | |
abb929f0 | 1065 | new_request->extacl_user = old_request->extacl_user; |
1066 | new_request->extacl_passwd = old_request->extacl_passwd; | |
62e76326 | 1067 | new_request->flags.proxy_keepalive = old_request->flags.proxy_keepalive; |
6dd9f4bd | 1068 | HTTPMSGUNLOCK(old_request); |
1069 | http->request = HTTPMSGLOCK(new_request); | |
edce4d98 | 1070 | } |
62e76326 | 1071 | |
edce4d98 | 1072 | /* FIXME PIPELINE: This is innacurate during pipelining */ |
62e76326 | 1073 | |
5f8252d2 | 1074 | if (http->getConn() != NULL) |
98242069 | 1075 | fd_note(http->getConn()->fd, http->uri); |
62e76326 | 1076 | |
c8be6d7b | 1077 | assert(http->uri); |
62e76326 | 1078 | |
de31d06f | 1079 | http->doCallouts(); |
edce4d98 | 1080 | } |
1081 | ||
b50e327b AJ |
1082 | /** Test cache allow/deny configuration |
1083 | * Sets flags.cachable=1 if caching is not denied. | |
1084 | */ | |
edce4d98 | 1085 | void |
8e2745f4 | 1086 | ClientRequestContext::checkNoCache() |
edce4d98 | 1087 | { |
b50e327b AJ |
1088 | if (Config.accessList.noCache) { |
1089 | acl_checklist = clientAclChecklistCreate(Config.accessList.noCache, http); | |
1090 | acl_checklist->nonBlockingCheck(checkNoCacheDoneWrapper, this); | |
1091 | } else { | |
1092 | /* unless otherwise specified, we try to cache. */ | |
1093 | checkNoCacheDone(1); | |
1094 | } | |
edce4d98 | 1095 | } |
1096 | ||
de31d06f | 1097 | static void |
1098 | checkNoCacheDoneWrapper(int answer, void *data) | |
edce4d98 | 1099 | { |
de31d06f | 1100 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; |
e4a67a80 | 1101 | |
de31d06f | 1102 | if (!calloutContext->httpStateIsValid()) |
1103 | return; | |
1104 | ||
1105 | calloutContext->checkNoCacheDone(answer); | |
8e2745f4 | 1106 | } |
4fb35c3c | 1107 | |
8e2745f4 | 1108 | void |
1109 | ClientRequestContext::checkNoCacheDone(int answer) | |
62e76326 | 1110 | { |
8e2745f4 | 1111 | acl_checklist = NULL; |
de31d06f | 1112 | http->request->flags.cachable = answer; |
1113 | http->doCallouts(); | |
edce4d98 | 1114 | } |
1115 | ||
69660be0 | 1116 | /* |
1117 | * Identify requests that do not go through the store and client side stream | |
1118 | * and forward them to the appropriate location. All other requests, request | |
1119 | * them. | |
edce4d98 | 1120 | */ |
1121 | void | |
8e2745f4 | 1122 | ClientHttpRequest::processRequest() |
edce4d98 | 1123 | { |
60745f24 | 1124 | debugs(85, 4, "clientProcessRequest: " << RequestMethodStr(request->method) << " '" << uri << "'"); |
62e76326 | 1125 | |
31281814 | 1126 | if (request->method == METHOD_CONNECT && !redirect.status) { |
3712be3f | 1127 | #if USE_SSL |
31281814 AJ |
1128 | if (sslBumpNeeded()) { |
1129 | sslBumpStart(); | |
1130 | return; | |
1131 | } | |
3712be3f | 1132 | #endif |
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) { | |
1fa35be8 AR |
1193 | debugs(85, 3, HERE << "CONNECT response failure in SslBump: " << errflag); |
1194 | comm_close(getConn()->fd); | |
3712be3f | 1195 | return; |
1196 | } | |
1197 | ||
95d2589c | 1198 | getConn()->switchToHttps(request->GetHost()); |
3712be3f | 1199 | } |
1200 | ||
1201 | void | |
1202 | ClientHttpRequest::sslBumpStart() | |
1203 | { | |
1204 | debugs(85, 5, HERE << "ClientHttpRequest::sslBumpStart"); | |
1205 | ||
1206 | // send an HTTP 200 response to kick client SSL negotiation | |
1207 | const int fd = getConn()->fd; | |
1208 | debugs(33, 7, HERE << "Confirming CONNECT tunnel on FD " << fd); | |
1209 | ||
1210 | // TODO: Unify with tunnel.cc and add a Server(?) header | |
1211 | static const char *const conn_established = | |
3c4fcf0f | 1212 | "HTTP/1.1 200 Connection established\r\n\r\n"; |
ec41b64c AJ |
1213 | AsyncCall::Pointer call = commCbCall(85, 5, "ClientSocketContext::sslBumpEstablish", |
1214 | CommIoCbPtrFun(&SslBumpEstablish, this)); | |
1215 | Comm::Write(fd, conn_established, strlen(conn_established), call, NULL); | |
3712be3f | 1216 | } |
1217 | ||
1218 | #endif | |
1219 | ||
0655fa4d | 1220 | bool |
1221 | ClientHttpRequest::gotEnough() const | |
1222 | { | |
86a2f789 | 1223 | /** TODO: should be querying the stream. */ |
7173d5b0 | 1224 | int64_t contentLength = |
06a5ae20 | 1225 | memObject()->getReply()->bodySize(request->method); |
0655fa4d | 1226 | assert(contentLength >= 0); |
1227 | ||
1228 | if (out.offset < contentLength) | |
1229 | return false; | |
1230 | ||
1231 | return true; | |
1232 | } | |
1233 | ||
86a2f789 | 1234 | void |
1235 | ClientHttpRequest::storeEntry(StoreEntry *newEntry) | |
1236 | { | |
1237 | entry_ = newEntry; | |
1238 | } | |
1239 | ||
0976f8db | 1240 | void |
1241 | ClientHttpRequest::loggingEntry(StoreEntry *newEntry) | |
1242 | { | |
1243 | if (loggingEntry_) | |
97b5e68f | 1244 | loggingEntry_->unlock(); |
0976f8db | 1245 | |
1246 | loggingEntry_ = newEntry; | |
1247 | ||
1248 | if (loggingEntry_) | |
3d0ac046 | 1249 | loggingEntry_->lock(); |
0976f8db | 1250 | } |
86a2f789 | 1251 | |
de31d06f | 1252 | /* |
1253 | * doCallouts() - This function controls the order of "callout" | |
1254 | * executions, including non-blocking access control checks, the | |
1255 | * redirector, and ICAP. Previously, these callouts were chained | |
1256 | * together such that "clientAccessCheckDone()" would call | |
1257 | * "clientRedirectStart()" and so on. | |
1258 | * | |
1259 | * The ClientRequestContext (aka calloutContext) class holds certain | |
1260 | * state data for the callout/callback operations. Previously | |
1261 | * ClientHttpRequest would sort of hand off control to ClientRequestContext | |
1262 | * for a short time. ClientRequestContext would then delete itself | |
1263 | * and pass control back to ClientHttpRequest when all callouts | |
1264 | * were finished. | |
1265 | * | |
1266 | * This caused some problems for ICAP because we want to make the | |
1267 | * ICAP callout after checking ACLs, but before checking the no_cache | |
1268 | * list. We can't stuff the ICAP state into the ClientRequestContext | |
1269 | * class because we still need the ICAP state after ClientRequestContext | |
1270 | * goes away. | |
1271 | * | |
1272 | * Note that ClientRequestContext is created before the first call | |
1273 | * to doCallouts(). | |
1274 | * | |
1275 | * If one of the callouts notices that ClientHttpRequest is no | |
1276 | * longer valid, it should call cbdataReferenceDone() so that | |
1277 | * ClientHttpRequest's reference count goes to zero and it will get | |
1278 | * deleted. ClientHttpRequest will then delete ClientRequestContext. | |
1279 | * | |
1280 | * Note that we set the _done flags here before actually starting | |
1281 | * the callout. This is strictly for convenience. | |
1282 | */ | |
1283 | ||
425de4c8 AJ |
1284 | extern tos_t aclMapTOS (acl_tos * head, ACLChecklist * ch); |
1285 | extern nfmark_t aclMapNfmark (acl_nfmark * head, ACLChecklist * ch); | |
057f5854 | 1286 | |
de31d06f | 1287 | void |
1288 | ClientHttpRequest::doCallouts() | |
1289 | { | |
1290 | assert(calloutContext); | |
1291 | ||
6fca33e0 CT |
1292 | /*Save the original request for logging purposes*/ |
1293 | if (!calloutContext->http->al.request) | |
105d1937 | 1294 | calloutContext->http->al.request = HTTPMSGLOCK(request); |
6fca33e0 | 1295 | |
de31d06f | 1296 | if (!calloutContext->http_access_done) { |
3712be3f | 1297 | debugs(83, 3, HERE << "Doing calloutContext->clientAccessCheck()"); |
57abaac0 | 1298 | calloutContext->http_access_done = true; |
de31d06f | 1299 | calloutContext->clientAccessCheck(); |
1300 | return; | |
1301 | } | |
1302 | ||
a83c6ed6 | 1303 | #if USE_ADAPTATION |
abd4b611 | 1304 | if (!calloutContext->adaptation_acl_check_done) { |
a83c6ed6 | 1305 | calloutContext->adaptation_acl_check_done = true; |
abd4b611 | 1306 | if (Adaptation::AccessCheck::Start( |
26ac0430 AJ |
1307 | Adaptation::methodReqmod, Adaptation::pointPreCache, |
1308 | request, NULL, adaptationAclCheckDoneWrapper, calloutContext)) | |
abd4b611 | 1309 | return; // will call callback |
de31d06f | 1310 | } |
de31d06f | 1311 | #endif |
1312 | ||
1313 | if (!calloutContext->redirect_done) { | |
57abaac0 | 1314 | calloutContext->redirect_done = true; |
de31d06f | 1315 | assert(calloutContext->redirect_state == REDIRECT_NONE); |
1316 | ||
1317 | if (Config.Program.redirect) { | |
3712be3f | 1318 | debugs(83, 3, HERE << "Doing calloutContext->clientRedirectStart()"); |
de31d06f | 1319 | calloutContext->redirect_state = REDIRECT_PENDING; |
1320 | calloutContext->clientRedirectStart(); | |
1321 | return; | |
1322 | } | |
1323 | } | |
1324 | ||
533493da AJ |
1325 | if (!calloutContext->adapted_http_access_done) { |
1326 | debugs(83, 3, HERE << "Doing calloutContext->clientAccessCheck2()"); | |
1327 | calloutContext->adapted_http_access_done = true; | |
1328 | calloutContext->clientAccessCheck2(); | |
1329 | return; | |
1330 | } | |
1331 | ||
57abaac0 | 1332 | if (!calloutContext->interpreted_req_hdrs) { |
3712be3f | 1333 | debugs(83, 3, HERE << "Doing clientInterpretRequestHeaders()"); |
57abaac0 | 1334 | calloutContext->interpreted_req_hdrs = 1; |
1335 | clientInterpretRequestHeaders(this); | |
1336 | } | |
1337 | ||
de31d06f | 1338 | if (!calloutContext->no_cache_done) { |
57abaac0 | 1339 | calloutContext->no_cache_done = true; |
de31d06f | 1340 | |
1341 | if (Config.accessList.noCache && request->flags.cachable) { | |
3712be3f | 1342 | debugs(83, 3, HERE << "Doing calloutContext->checkNoCache()"); |
de31d06f | 1343 | calloutContext->checkNoCache(); |
1344 | return; | |
1345 | } | |
1346 | } | |
1347 | ||
425de4c8 AJ |
1348 | if (!calloutContext->tosToClientDone) { |
1349 | calloutContext->tosToClientDone = true; | |
3712be3f | 1350 | if (getConn() != NULL) { |
c0941a6a | 1351 | ACLFilledChecklist ch(NULL, request, NULL); |
057f5854 | 1352 | ch.src_addr = request->client_addr; |
1353 | ch.my_addr = request->my_addr; | |
425de4c8 | 1354 | tos_t tos = aclMapTOS(Ip::Qos::TheConfig.tosToClient, &ch); |
3712be3f | 1355 | if (tos) |
425de4c8 AJ |
1356 | Ip::Qos::setSockTos(getConn()->fd, tos); |
1357 | } | |
1358 | } | |
1359 | ||
1360 | if (!calloutContext->nfmarkToClientDone) { | |
1361 | calloutContext->nfmarkToClientDone = true; | |
1362 | if (getConn() != NULL) { | |
1363 | ACLFilledChecklist ch(NULL, request, NULL); | |
1364 | ch.src_addr = request->client_addr; | |
1365 | ch.my_addr = request->my_addr; | |
1366 | nfmark_t mark = aclMapNfmark(Ip::Qos::TheConfig.nfmarkToClient, &ch); | |
1367 | if (mark) | |
1368 | Ip::Qos::setSockNfmark(getConn()->fd, mark); | |
3712be3f | 1369 | } |
057f5854 | 1370 | } |
1371 | ||
de31d06f | 1372 | cbdataReferenceDone(calloutContext->http); |
1373 | delete calloutContext; | |
1374 | calloutContext = NULL; | |
de31d06f | 1375 | #if HEADERS_LOG |
1376 | ||
1377 | headersLog(0, 1, request->method, request); | |
1378 | #endif | |
1379 | ||
58d7150d | 1380 | debugs(83, 3, HERE << "calling processRequest()"); |
de31d06f | 1381 | processRequest(); |
3ff65596 AR |
1382 | |
1383 | #if ICAP_CLIENT | |
1384 | Adaptation::Icap::History::Pointer ih = request->icapHistory(); | |
1385 | if (ih != NULL) | |
1386 | ih->logType = logType; | |
1387 | #endif | |
de31d06f | 1388 | } |
1389 | ||
32d002cb | 1390 | #if !_USE_INLINE_ |
86a2f789 | 1391 | #include "client_side_request.cci" |
1392 | #endif | |
de31d06f | 1393 | |
a83c6ed6 | 1394 | #if USE_ADAPTATION |
a22e6cd3 AR |
1395 | /// Initiate an asynchronous adaptation transaction which will call us back. |
1396 | void | |
1397 | ClientHttpRequest::startAdaptation(const Adaptation::ServiceGroupPointer &g) | |
3b299123 | 1398 | { |
a22e6cd3 | 1399 | debugs(85, 3, HERE << "adaptation needed for " << this); |
a83c6ed6 AR |
1400 | assert(!virginHeadSource); |
1401 | assert(!adaptedBodySource); | |
a22e6cd3 | 1402 | virginHeadSource = initiateAdaptation( |
4cb2536f | 1403 | new Adaptation::Iterator(request, NULL, g)); |
a83c6ed6 | 1404 | |
e1381638 | 1405 | // we could try to guess whether we can bypass this adaptation |
a22e6cd3 | 1406 | // initiation failure, but it should not really happen |
4299f876 | 1407 | Must(initiated(virginHeadSource)); |
de31d06f | 1408 | } |
1409 | ||
1410 | void | |
3af10ac0 | 1411 | ClientHttpRequest::noteAdaptationAnswer(const Adaptation::Answer &answer) |
de31d06f | 1412 | { |
de31d06f | 1413 | assert(cbdataReferenceValid(this)); // indicates bug |
3af10ac0 AR |
1414 | clearAdaptation(virginHeadSource); |
1415 | assert(!adaptedBodySource); | |
1416 | ||
1417 | switch (answer.kind) { | |
1418 | case Adaptation::Answer::akForward: | |
1419 | handleAdaptedHeader(answer.message); | |
1420 | break; | |
1421 | ||
1422 | case Adaptation::Answer::akBlock: | |
1423 | handleAdaptationBlock(answer); | |
1424 | break; | |
1425 | ||
1426 | case Adaptation::Answer::akError: | |
1427 | handleAdaptationFailure(ERR_DETAIL_CLT_REQMOD_ABORT, !answer.final); | |
1428 | break; | |
1429 | } | |
1430 | } | |
1431 | ||
1432 | void | |
ec4d1a1d | 1433 | ClientHttpRequest::handleAdaptedHeader(HttpMsg *msg) |
3af10ac0 | 1434 | { |
5f8252d2 | 1435 | assert(msg); |
1436 | ||
b044675d | 1437 | if (HttpRequest *new_req = dynamic_cast<HttpRequest*>(msg)) { |
200ac359 | 1438 | /* |
5f8252d2 | 1439 | * Replace the old request with the new request. |
200ac359 | 1440 | */ |
6dd9f4bd | 1441 | HTTPMSGUNLOCK(request); |
1442 | request = HTTPMSGLOCK(new_req); | |
200ac359 | 1443 | /* |
1444 | * Store the new URI for logging | |
1445 | */ | |
1446 | xfree(uri); | |
1447 | uri = xstrdup(urlCanonical(request)); | |
1448 | setLogUri(this, urlCanonicalClean(request)); | |
914b89a2 | 1449 | assert(request->method.id()); |
b044675d | 1450 | } else if (HttpReply *new_rep = dynamic_cast<HttpReply*>(msg)) { |
1451 | debugs(85,3,HERE << "REQMOD reply is HTTP reply"); | |
1452 | ||
5f8252d2 | 1453 | // subscribe to receive reply body |
1454 | if (new_rep->body_pipe != NULL) { | |
a83c6ed6 | 1455 | adaptedBodySource = new_rep->body_pipe; |
d222a56c HN |
1456 | int consumer_ok = adaptedBodySource->setConsumerIfNotLate(this); |
1457 | assert(consumer_ok); | |
5f8252d2 | 1458 | } |
1459 | ||
b044675d | 1460 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->prev->data; |
1461 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1462 | repContext->createStoreEntry(request->method, request->flags); | |
1463 | ||
1464 | EBIT_CLR(storeEntry()->flags, ENTRY_FWD_HDR_WAIT); | |
1465 | request_satisfaction_mode = true; | |
1466 | request_satisfaction_offset = 0; | |
1467 | storeEntry()->replaceHttpReply(new_rep); | |
97ae5196 | 1468 | storeEntry()->timestampsSet(); |
cb4c4288 | 1469 | |
a83c6ed6 | 1470 | if (!adaptedBodySource) // no body |
cb4c4288 | 1471 | storeEntry()->complete(); |
b044675d | 1472 | clientGetMoreData(node, this); |
200ac359 | 1473 | } |
de31d06f | 1474 | |
5f8252d2 | 1475 | // we are done with getting headers (but may be receiving body) |
a83c6ed6 | 1476 | clearAdaptation(virginHeadSource); |
5f8252d2 | 1477 | |
b044675d | 1478 | if (!request_satisfaction_mode) |
1479 | doCallouts(); | |
de31d06f | 1480 | } |
1481 | ||
1482 | void | |
3af10ac0 | 1483 | ClientHttpRequest::handleAdaptationBlock(const Adaptation::Answer &answer) |
de31d06f | 1484 | { |
3af10ac0 AR |
1485 | request->detailError(ERR_ACCESS_DENIED, ERR_DETAIL_REQMOD_BLOCK); |
1486 | AclMatchedName = answer.ruleId.termedBuf(); | |
1487 | assert(calloutContext); | |
1488 | calloutContext->clientAccessCheckDone(ACCESS_DENIED); | |
1489 | AclMatchedName = NULL; | |
de31d06f | 1490 | } |
1491 | ||
1492 | void | |
1cf238db | 1493 | ClientHttpRequest::noteMoreBodyDataAvailable(BodyPipe::Pointer) |
de31d06f | 1494 | { |
5f8252d2 | 1495 | assert(request_satisfaction_mode); |
a83c6ed6 | 1496 | assert(adaptedBodySource != NULL); |
5f8252d2 | 1497 | |
4ce0e99b | 1498 | if (const size_t contentSize = adaptedBodySource->buf().contentSize()) { |
a83c6ed6 | 1499 | BodyPipeCheckout bpc(*adaptedBodySource); |
4ce0e99b | 1500 | const StoreIOBuffer ioBuf(&bpc.buf, request_satisfaction_offset); |
5f8252d2 | 1501 | storeEntry()->write(ioBuf); |
1502 | // assume can write everything | |
1503 | request_satisfaction_offset += contentSize; | |
4ce0e99b | 1504 | bpc.buf.consume(contentSize); |
5f8252d2 | 1505 | bpc.checkIn(); |
1506 | } | |
1507 | ||
a83c6ed6 | 1508 | if (adaptedBodySource->exhausted()) |
5f8252d2 | 1509 | endRequestSatisfaction(); |
1510 | // else wait for more body data | |
de31d06f | 1511 | } |
1512 | ||
1513 | void | |
1cf238db | 1514 | ClientHttpRequest::noteBodyProductionEnded(BodyPipe::Pointer) |
de31d06f | 1515 | { |
a83c6ed6 AR |
1516 | assert(!virginHeadSource); |
1517 | if (adaptedBodySource != NULL) { // did not end request satisfaction yet | |
26ac0430 | 1518 | // We do not expect more because noteMoreBodyDataAvailable always |
5f8252d2 | 1519 | // consumes everything. We do not even have a mechanism to consume |
1520 | // leftovers after noteMoreBodyDataAvailable notifications seize. | |
a83c6ed6 | 1521 | assert(adaptedBodySource->exhausted()); |
5f8252d2 | 1522 | endRequestSatisfaction(); |
1523 | } | |
1524 | } | |
3b299123 | 1525 | |
5f8252d2 | 1526 | void |
26ac0430 AJ |
1527 | ClientHttpRequest::endRequestSatisfaction() |
1528 | { | |
5f8252d2 | 1529 | debugs(85,4, HERE << this << " ends request satisfaction"); |
1530 | assert(request_satisfaction_mode); | |
a83c6ed6 | 1531 | stopConsumingFrom(adaptedBodySource); |
3b299123 | 1532 | |
5f8252d2 | 1533 | // TODO: anything else needed to end store entry formation correctly? |
1534 | storeEntry()->complete(); | |
1535 | } | |
de31d06f | 1536 | |
5f8252d2 | 1537 | void |
1cf238db | 1538 | ClientHttpRequest::noteBodyProducerAborted(BodyPipe::Pointer) |
5f8252d2 | 1539 | { |
a83c6ed6 AR |
1540 | assert(!virginHeadSource); |
1541 | stopConsumingFrom(adaptedBodySource); | |
eae3a9a6 AR |
1542 | |
1543 | debugs(85,3, HERE << "REQMOD body production failed"); | |
1544 | if (request_satisfaction_mode) { // too late to recover or serve an error | |
1545 | request->detailError(ERR_ICAP_FAILURE, ERR_DETAIL_CLT_REQMOD_RESP_BODY); | |
1546 | const int fd = getConn()->fd; | |
1547 | Must(fd >= 0); | |
1548 | comm_close(fd); // drastic, but we may be writing a response already | |
1549 | } else { | |
1550 | handleAdaptationFailure(ERR_DETAIL_CLT_REQMOD_REQ_BODY); | |
1551 | } | |
5f8252d2 | 1552 | } |
3b299123 | 1553 | |
5f8252d2 | 1554 | void |
64b66b76 | 1555 | ClientHttpRequest::handleAdaptationFailure(int errDetail, bool bypassable) |
5f8252d2 | 1556 | { |
a83c6ed6 | 1557 | debugs(85,3, HERE << "handleAdaptationFailure(" << bypassable << ")"); |
3b299123 | 1558 | |
5f8252d2 | 1559 | const bool usedStore = storeEntry() && !storeEntry()->isEmpty(); |
1560 | const bool usedPipe = request->body_pipe != NULL && | |
26ac0430 | 1561 | request->body_pipe->consumedSize() > 0; |
3b299123 | 1562 | |
9d4d7c5e | 1563 | if (bypassable && !usedStore && !usedPipe) { |
1564 | debugs(85,3, HERE << "ICAP REQMOD callout failed, bypassing: " << calloutContext); | |
5f8252d2 | 1565 | if (calloutContext) |
1566 | doCallouts(); | |
1567 | return; | |
1568 | } | |
3b299123 | 1569 | |
5f8252d2 | 1570 | debugs(85,3, HERE << "ICAP REQMOD callout failed, responding with error"); |
3b299123 | 1571 | |
5f8252d2 | 1572 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->prev->data; |
1573 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1574 | assert(repContext); | |
de31d06f | 1575 | |
26ac0430 | 1576 | // The original author of the code also wanted to pass an errno to |
5f8252d2 | 1577 | // setReplyToError, but it seems unlikely that the errno reflects the |
1578 | // true cause of the error at this point, so I did not pass it. | |
b7ac5457 | 1579 | Ip::Address noAddr; |
b70ba605 | 1580 | noAddr.SetNoAddr(); |
1cf238db | 1581 | ConnStateData * c = getConn(); |
5f8252d2 | 1582 | repContext->setReplyToError(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR, |
26ac0430 AJ |
1583 | request->method, NULL, |
1584 | (c != NULL ? c->peer : noAddr), request, NULL, | |
a33a428a | 1585 | (c != NULL && c->auth_user_request != NULL ? |
26ac0430 | 1586 | c->auth_user_request : request->auth_user_request)); |
de31d06f | 1587 | |
64b66b76 CT |
1588 | request->detailError(ERR_ICAP_FAILURE, errDetail); |
1589 | ||
5f8252d2 | 1590 | node = (clientStreamNode *)client_stream.tail->data; |
1591 | clientStreamRead(node, this, node->readBuffer); | |
de31d06f | 1592 | } |
1593 | ||
1594 | #endif |