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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 | ||
69660be0 | 36 | /* |
37 | * General logic of request processing: | |
26ac0430 | 38 | * |
69660be0 | 39 | * We run a series of tests to determine if access will be permitted, and to do |
40 | * any redirection. Then we call into the result clientStream to retrieve data. | |
41 | * From that point on it's up to reply management. | |
edce4d98 | 42 | */ |
43 | ||
582c2af2 | 44 | #include "squid.h" |
c0941a6a AR |
45 | #include "acl/FilledChecklist.h" |
46 | #include "acl/Gadgets.h" | |
65d448bc | 47 | #include "anyp/PortCfg.h" |
582c2af2 | 48 | #include "ClientRequestContext.h" |
27bc2077 AJ |
49 | #include "client_side.h" |
50 | #include "client_side_reply.h" | |
51 | #include "client_side_request.h" | |
582c2af2 | 52 | #include "clientStream.h" |
5c336a3b | 53 | #include "comm/Connection.h" |
ec41b64c | 54 | #include "comm/Write.h" |
27bc2077 | 55 | #include "compat/inet_pton.h" |
582c2af2 | 56 | #include "err_detail_type.h" |
2bd84e5f | 57 | #include "errorpage.h" |
27bc2077 | 58 | #include "fde.h" |
31971e6a | 59 | #include "format/Token.h" |
ce394734 | 60 | #include "HttpHdrCc.h" |
27bc2077 AJ |
61 | #include "HttpReply.h" |
62 | #include "HttpRequest.h" | |
582c2af2 | 63 | #include "ipcache.h" |
425de4c8 | 64 | #include "ip/QosConfig.h" |
27bc2077 | 65 | #include "MemObject.h" |
582c2af2 FC |
66 | #include "profiler/Profiler.h" |
67 | #include "protos.h" | |
27bc2077 | 68 | #include "SquidTime.h" |
582c2af2 | 69 | #include "Store.h" |
27bc2077 | 70 | #include "wordlist.h" |
582c2af2 FC |
71 | #if USE_AUTH |
72 | #include "auth/UserRequest.h" | |
73 | #endif | |
74 | #if USE_ADAPTATION | |
75 | #include "adaptation/AccessCheck.h" | |
76 | #include "adaptation/Answer.h" | |
77 | #include "adaptation/Iterator.h" | |
78 | #include "adaptation/Service.h" | |
79 | #if ICAP_CLIENT | |
80 | #include "adaptation/icap/History.h" | |
81 | #endif | |
82 | #endif | |
4db984be CT |
83 | #if USE_SSL |
84 | #include "ssl/support.h" | |
2bd84e5f | 85 | #include "ssl/ServerBump.h" |
4db984be | 86 | #endif |
3ff65596 | 87 | |
edce4d98 | 88 | #if LINGERING_CLOSE |
89 | #define comm_close comm_lingering_close | |
90 | #endif | |
91 | ||
92 | static const char *const crlf = "\r\n"; | |
93 | ||
609c620a | 94 | #if FOLLOW_X_FORWARDED_FOR |
2efeb0b7 | 95 | static void clientFollowXForwardedForCheck(allow_t answer, void *data); |
609c620a | 96 | #endif /* FOLLOW_X_FORWARDED_FOR */ |
3d674977 | 97 | |
2bd84e5f CT |
98 | extern ErrorState *clientBuildError(err_type, http_status, char const *url, Ip::Address &, HttpRequest *); |
99 | ||
8e2745f4 | 100 | CBDATA_CLASS_INIT(ClientRequestContext); |
101 | ||
102 | void * | |
103 | ClientRequestContext::operator new (size_t size) | |
104 | { | |
105 | assert (size == sizeof(ClientRequestContext)); | |
106 | CBDATA_INIT_TYPE(ClientRequestContext); | |
107 | ClientRequestContext *result = cbdataAlloc(ClientRequestContext); | |
aa625860 | 108 | return result; |
8e2745f4 | 109 | } |
62e76326 | 110 | |
8e2745f4 | 111 | void |
112 | ClientRequestContext::operator delete (void *address) | |
113 | { | |
114 | ClientRequestContext *t = static_cast<ClientRequestContext *>(address); | |
aa625860 | 115 | cbdataFree(t); |
8e2745f4 | 116 | } |
117 | ||
edce4d98 | 118 | /* Local functions */ |
edce4d98 | 119 | /* other */ |
2efeb0b7 | 120 | static void clientAccessCheckDoneWrapper(allow_t, void *); |
e0c0d54c | 121 | #if USE_SSL |
2efeb0b7 | 122 | static void sslBumpAccessCheckDoneWrapper(allow_t, void *); |
e0c0d54c | 123 | #endif |
59a1efb2 | 124 | static int clientHierarchical(ClientHttpRequest * http); |
125 | static void clientInterpretRequestHeaders(ClientHttpRequest * http); | |
de31d06f | 126 | static RH clientRedirectDoneWrapper; |
2efeb0b7 | 127 | static void checkNoCacheDoneWrapper(allow_t, void *); |
e6ccf245 | 128 | extern "C" CSR clientGetMoreData; |
129 | extern "C" CSS clientReplyStatus; | |
130 | extern "C" CSD clientReplyDetach; | |
528b2c61 | 131 | static void checkFailureRatio(err_type, hier_code); |
edce4d98 | 132 | |
8e2745f4 | 133 | ClientRequestContext::~ClientRequestContext() |
134 | { | |
de31d06f | 135 | /* |
a546b04b | 136 | * Release our "lock" on our parent, ClientHttpRequest, if we |
137 | * still have one | |
de31d06f | 138 | */ |
a546b04b | 139 | |
140 | if (http) | |
141 | cbdataReferenceDone(http); | |
62e76326 | 142 | |
2bd84e5f | 143 | delete error; |
5f8252d2 | 144 | debugs(85,3, HERE << this << " ClientRequestContext destructed"); |
8e2745f4 | 145 | } |
146 | ||
2bd84e5f | 147 | ClientRequestContext::ClientRequestContext(ClientHttpRequest *anHttp) : http(cbdataReference(anHttp)), acl_checklist (NULL), redirect_state (REDIRECT_NONE), error(NULL), readNextRequest(false) |
edce4d98 | 148 | { |
57abaac0 | 149 | http_access_done = false; |
150 | redirect_done = false; | |
151 | no_cache_done = false; | |
152 | interpreted_req_hdrs = false; | |
e0c0d54c CT |
153 | #if USE_SSL |
154 | sslBumpCheckDone = false; | |
155 | #endif | |
0b86805b | 156 | debugs(85,3, HERE << this << " ClientRequestContext constructed"); |
edce4d98 | 157 | } |
158 | ||
528b2c61 | 159 | CBDATA_CLASS_INIT(ClientHttpRequest); |
8e2745f4 | 160 | |
528b2c61 | 161 | void * |
162 | ClientHttpRequest::operator new (size_t size) | |
163 | { | |
164 | assert (size == sizeof (ClientHttpRequest)); | |
165 | CBDATA_INIT_TYPE(ClientHttpRequest); | |
166 | ClientHttpRequest *result = cbdataAlloc(ClientHttpRequest); | |
aa625860 | 167 | return result; |
528b2c61 | 168 | } |
169 | ||
62e76326 | 170 | void |
528b2c61 | 171 | ClientHttpRequest::operator delete (void *address) |
172 | { | |
aa625860 | 173 | ClientHttpRequest *t = static_cast<ClientHttpRequest *>(address); |
174 | cbdataFree(t); | |
528b2c61 | 175 | } |
176 | ||
26ac0430 | 177 | ClientHttpRequest::ClientHttpRequest(ConnStateData * aConn) : |
a83c6ed6 | 178 | #if USE_ADAPTATION |
26ac0430 | 179 | AsyncJob("ClientHttpRequest"), |
1cf238db | 180 | #endif |
26ac0430 | 181 | loggingEntry_(NULL) |
528b2c61 | 182 | { |
1cf238db | 183 | start_time = current_time; |
a0355e95 | 184 | setConn(aConn); |
41ebd397 CT |
185 | al = new AccessLogEntry; |
186 | al->tcpClient = clientConnection = aConn->clientConnection; | |
f4698e0b CT |
187 | #if USE_SSL |
188 | if (aConn->clientConnection != NULL && aConn->clientConnection->isOpen()) { | |
189 | if (SSL *ssl = fd_table[aConn->clientConnection->fd].ssl) | |
190 | al->cache.sslClientCert.reset(SSL_get_peer_certificate(ssl)); | |
191 | } | |
192 | #endif | |
a0355e95 | 193 | dlinkAdd(this, &active, &ClientActiveRequests); |
a83c6ed6 | 194 | #if USE_ADAPTATION |
b044675d | 195 | request_satisfaction_mode = false; |
196 | #endif | |
e0c0d54c | 197 | #if USE_SSL |
08097970 | 198 | sslBumpNeed_ = Ssl::bumpEnd; |
e0c0d54c | 199 | #endif |
528b2c61 | 200 | } |
201 | ||
0655fa4d | 202 | /* |
203 | * returns true if client specified that the object must come from the cache | |
204 | * without contacting origin server | |
205 | */ | |
206 | bool | |
207 | ClientHttpRequest::onlyIfCached()const | |
208 | { | |
209 | assert(request); | |
210 | return request->cache_control && | |
4ce6e3b5 | 211 | request->cache_control->onlyIfCached(); |
0655fa4d | 212 | } |
213 | ||
77aacca5 | 214 | /** |
528b2c61 | 215 | * This function is designed to serve a fairly specific purpose. |
216 | * Occasionally our vBNS-connected caches can talk to each other, but not | |
217 | * the rest of the world. Here we try to detect frequent failures which | |
218 | * make the cache unusable (e.g. DNS lookup and connect() failures). If | |
219 | * the failure:success ratio goes above 1.0 then we go into "hit only" | |
220 | * mode where we only return UDP_HIT or UDP_MISS_NOFETCH. Neighbors | |
221 | * will only fetch HITs from us if they are using the ICP protocol. We | |
222 | * stay in this mode for 5 minutes. | |
26ac0430 | 223 | * |
528b2c61 | 224 | * Duane W., Sept 16, 1996 |
225 | */ | |
528b2c61 | 226 | static void |
227 | checkFailureRatio(err_type etype, hier_code hcode) | |
228 | { | |
77aacca5 AJ |
229 | // Can be set at compile time with -D compiler flag |
230 | #ifndef FAILURE_MODE_TIME | |
231 | #define FAILURE_MODE_TIME 300 | |
232 | #endif | |
233 | ||
8d74a311 AJ |
234 | if (hcode == HIER_NONE) |
235 | return; | |
236 | ||
237 | // don't bother when ICP is disabled. | |
238 | if (Config.Port.icp <= 0) | |
239 | return; | |
240 | ||
528b2c61 | 241 | static double magic_factor = 100.0; |
242 | double n_good; | |
243 | double n_bad; | |
62e76326 | 244 | |
528b2c61 | 245 | n_good = magic_factor / (1.0 + request_failure_ratio); |
62e76326 | 246 | |
528b2c61 | 247 | n_bad = magic_factor - n_good; |
62e76326 | 248 | |
528b2c61 | 249 | switch (etype) { |
62e76326 | 250 | |
528b2c61 | 251 | case ERR_DNS_FAIL: |
62e76326 | 252 | |
528b2c61 | 253 | case ERR_CONNECT_FAIL: |
3712be3f | 254 | case ERR_SECURE_CONNECT_FAIL: |
62e76326 | 255 | |
528b2c61 | 256 | case ERR_READ_ERROR: |
5086523e | 257 | ++n_bad; |
62e76326 | 258 | break; |
259 | ||
528b2c61 | 260 | default: |
5086523e | 261 | ++n_good; |
528b2c61 | 262 | } |
62e76326 | 263 | |
528b2c61 | 264 | request_failure_ratio = n_bad / n_good; |
62e76326 | 265 | |
528b2c61 | 266 | if (hit_only_mode_until > squid_curtime) |
62e76326 | 267 | return; |
268 | ||
528b2c61 | 269 | if (request_failure_ratio < 1.0) |
62e76326 | 270 | return; |
271 | ||
77aacca5 | 272 | debugs(33, DBG_CRITICAL, "WARNING: Failure Ratio at "<< std::setw(4)<< |
bf8fe701 | 273 | std::setprecision(3) << request_failure_ratio); |
62e76326 | 274 | |
8d74a311 | 275 | debugs(33, DBG_CRITICAL, "WARNING: ICP going into HIT-only mode for " << |
bf8fe701 | 276 | FAILURE_MODE_TIME / 60 << " minutes..."); |
62e76326 | 277 | |
528b2c61 | 278 | hit_only_mode_until = squid_curtime + FAILURE_MODE_TIME; |
62e76326 | 279 | |
528b2c61 | 280 | request_failure_ratio = 0.8; /* reset to something less than 1.0 */ |
281 | } | |
282 | ||
283 | ClientHttpRequest::~ClientHttpRequest() | |
284 | { | |
bf8fe701 | 285 | debugs(33, 3, "httpRequestFree: " << uri); |
72bdee4c | 286 | PROF_start(httpRequestFree); |
62e76326 | 287 | |
5f8252d2 | 288 | // Even though freeResources() below may destroy the request, |
289 | // we no longer set request->body_pipe to NULL here | |
290 | // because we did not initiate that pipe (ConnStateData did) | |
62e76326 | 291 | |
528b2c61 | 292 | /* the ICP check here was erroneous |
26ac0430 | 293 | * - StoreEntry::releaseRequest was always called if entry was valid |
528b2c61 | 294 | */ |
295 | assert(logType < LOG_TYPE_MAX); | |
9ce7856a | 296 | |
528b2c61 | 297 | logRequest(); |
9ce7856a | 298 | |
0976f8db | 299 | loggingEntry(NULL); |
300 | ||
528b2c61 | 301 | if (request) |
41ebd397 | 302 | checkFailureRatio(request->errType, al->hier.code); |
62e76326 | 303 | |
528b2c61 | 304 | freeResources(); |
62e76326 | 305 | |
a83c6ed6 AR |
306 | #if USE_ADAPTATION |
307 | announceInitiatorAbort(virginHeadSource); | |
9d4d7c5e | 308 | |
a83c6ed6 AR |
309 | if (adaptedBodySource != NULL) |
310 | stopConsumingFrom(adaptedBodySource); | |
de31d06f | 311 | #endif |
9ce7856a | 312 | |
de31d06f | 313 | if (calloutContext) |
314 | delete calloutContext; | |
315 | ||
be364179 AJ |
316 | clientConnection = NULL; |
317 | ||
26ac0430 AJ |
318 | if (conn_) |
319 | cbdataReferenceDone(conn_); | |
1cf238db | 320 | |
528b2c61 | 321 | /* moving to the next connection is handled by the context free */ |
322 | dlinkDelete(&active, &ClientActiveRequests); | |
9ce7856a | 323 | |
72bdee4c | 324 | PROF_stop(httpRequestFree); |
528b2c61 | 325 | } |
62e76326 | 326 | |
11992b6f AJ |
327 | /** |
328 | * Create a request and kick it off | |
329 | * | |
330 | * \retval 0 success | |
331 | * \retval -1 failure | |
332 | * | |
69660be0 | 333 | * TODO: Pass in the buffers to be used in the inital Read request, as they are |
334 | * determined by the user | |
edce4d98 | 335 | */ |
11992b6f | 336 | int |
60745f24 | 337 | clientBeginRequest(const HttpRequestMethod& method, char const *url, CSCB * streamcallback, |
0655fa4d | 338 | CSD * streamdetach, ClientStreamData streamdata, HttpHeader const *header, |
62e76326 | 339 | char *tailbuf, size_t taillen) |
edce4d98 | 340 | { |
341 | size_t url_sz; | |
a0355e95 | 342 | ClientHttpRequest *http = new ClientHttpRequest(NULL); |
190154cf | 343 | HttpRequest *request; |
528b2c61 | 344 | StoreIOBuffer tempBuffer; |
1cf238db | 345 | http->start_time = current_time; |
edce4d98 | 346 | /* this is only used to adjust the connection offset in client_side.c */ |
347 | http->req_sz = 0; | |
c8be6d7b | 348 | tempBuffer.length = taillen; |
349 | tempBuffer.data = tailbuf; | |
edce4d98 | 350 | /* client stream setup */ |
351 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, | |
0655fa4d | 352 | clientReplyStatus, new clientReplyContext(http), streamcallback, |
62e76326 | 353 | streamdetach, streamdata, tempBuffer); |
edce4d98 | 354 | /* make it visible in the 'current acctive requests list' */ |
edce4d98 | 355 | /* Set flags */ |
a46d2c0e | 356 | /* internal requests only makes sense in an |
357 | * accelerator today. TODO: accept flags ? */ | |
358 | http->flags.accel = 1; | |
edce4d98 | 359 | /* allow size for url rewriting */ |
360 | url_sz = strlen(url) + Config.appendDomainLen + 5; | |
e6ccf245 | 361 | http->uri = (char *)xcalloc(url_sz, 1); |
edce4d98 | 362 | strcpy(http->uri, url); |
363 | ||
c21ad0f5 | 364 | if ((request = HttpRequest::CreateFromUrlAndMethod(http->uri, method)) == NULL) { |
bf8fe701 | 365 | debugs(85, 5, "Invalid URL: " << http->uri); |
62e76326 | 366 | return -1; |
edce4d98 | 367 | } |
62e76326 | 368 | |
69660be0 | 369 | /* |
11992b6f | 370 | * now update the headers in request with our supplied headers. urlParse |
69660be0 | 371 | * should return a blank header set, but we use Update to be sure of |
372 | * correctness. | |
edce4d98 | 373 | */ |
374 | if (header) | |
a9925b40 | 375 | request->header.update(header, NULL); |
62e76326 | 376 | |
edce4d98 | 377 | http->log_uri = xstrdup(urlCanonicalClean(request)); |
62e76326 | 378 | |
edce4d98 | 379 | /* http struct now ready */ |
380 | ||
69660be0 | 381 | /* |
382 | * build new header list *? TODO | |
edce4d98 | 383 | */ |
384 | request->flags.accelerated = http->flags.accel; | |
62e76326 | 385 | |
a46d2c0e | 386 | request->flags.internalclient = 1; |
387 | ||
388 | /* this is an internally created | |
389 | * request, not subject to acceleration | |
390 | * target overrides */ | |
69660be0 | 391 | /* |
392 | * FIXME? Do we want to detect and handle internal requests of internal | |
393 | * objects ? | |
394 | */ | |
edce4d98 | 395 | |
396 | /* Internally created requests cannot have bodies today */ | |
397 | request->content_length = 0; | |
62e76326 | 398 | |
cc192b50 | 399 | request->client_addr.SetNoAddr(); |
62e76326 | 400 | |
3d674977 AJ |
401 | #if FOLLOW_X_FORWARDED_FOR |
402 | request->indirect_client_addr.SetNoAddr(); | |
403 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
26ac0430 | 404 | |
cc192b50 | 405 | request->my_addr.SetNoAddr(); /* undefined for internal requests */ |
62e76326 | 406 | |
cc192b50 | 407 | request->my_addr.SetPort(0); |
62e76326 | 408 | |
3872be7c AJ |
409 | /* Our version is HTTP/1.1 */ |
410 | HttpVersion http_ver(1,1); | |
edce4d98 | 411 | request->http_ver = http_ver; |
62e76326 | 412 | |
6dd9f4bd | 413 | http->request = HTTPMSGLOCK(request); |
edce4d98 | 414 | |
415 | /* optional - skip the access check ? */ | |
de31d06f | 416 | http->calloutContext = new ClientRequestContext(http); |
417 | ||
57abaac0 | 418 | http->calloutContext->http_access_done = false; |
de31d06f | 419 | |
57abaac0 | 420 | http->calloutContext->redirect_done = true; |
de31d06f | 421 | |
57abaac0 | 422 | http->calloutContext->no_cache_done = true; |
de31d06f | 423 | |
424 | http->doCallouts(); | |
62e76326 | 425 | |
edce4d98 | 426 | return 0; |
427 | } | |
428 | ||
de31d06f | 429 | bool |
430 | ClientRequestContext::httpStateIsValid() | |
431 | { | |
432 | ClientHttpRequest *http_ = http; | |
433 | ||
434 | if (cbdataReferenceValid(http_)) | |
435 | return true; | |
436 | ||
437 | http = NULL; | |
438 | ||
439 | cbdataReferenceDone(http_); | |
440 | ||
441 | return false; | |
442 | } | |
443 | ||
3d674977 AJ |
444 | #if FOLLOW_X_FORWARDED_FOR |
445 | /** | |
a9044668 | 446 | * clientFollowXForwardedForCheck() checks the content of X-Forwarded-For: |
3d674977 AJ |
447 | * against the followXFF ACL, or cleans up and passes control to |
448 | * clientAccessCheck(). | |
d096ace1 AJ |
449 | * |
450 | * The trust model here is a little ambiguous. So to clarify the logic: | |
451 | * - we may always use the direct client address as the client IP. | |
a9044668 | 452 | * - these trust tests merey tell whether we trust given IP enough to believe the |
d096ace1 AJ |
453 | * IP string which it appended to the X-Forwarded-For: header. |
454 | * - if at any point we don't trust what an IP adds we stop looking. | |
455 | * - at that point the current contents of indirect_client_addr are the value set | |
456 | * by the last previously trusted IP. | |
457 | * ++ indirect_client_addr contains the remote direct client from the trusted peers viewpoint. | |
3d674977 | 458 | */ |
3d674977 | 459 | static void |
2efeb0b7 | 460 | clientFollowXForwardedForCheck(allow_t answer, void *data) |
3d674977 AJ |
461 | { |
462 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; | |
3d674977 AJ |
463 | |
464 | if (!calloutContext->httpStateIsValid()) | |
465 | return; | |
466 | ||
d096ace1 AJ |
467 | ClientHttpRequest *http = calloutContext->http; |
468 | HttpRequest *request = http->request; | |
469 | ||
3d674977 AJ |
470 | /* |
471 | * answer should be be ACCESS_ALLOWED or ACCESS_DENIED if we are | |
472 | * called as a result of ACL checks, or -1 if we are called when | |
473 | * there's nothing left to do. | |
474 | */ | |
475 | if (answer == ACCESS_ALLOWED && | |
26ac0430 | 476 | request->x_forwarded_for_iterator.size () != 0) { |
d096ace1 | 477 | |
3d674977 | 478 | /* |
d096ace1 AJ |
479 | * Remove the last comma-delimited element from the |
480 | * x_forwarded_for_iterator and use it to repeat the cycle. | |
481 | */ | |
3d674977 AJ |
482 | const char *p; |
483 | const char *asciiaddr; | |
484 | int l; | |
b7ac5457 | 485 | Ip::Address addr; |
bb790702 | 486 | p = request->x_forwarded_for_iterator.termedBuf(); |
3d674977 AJ |
487 | l = request->x_forwarded_for_iterator.size(); |
488 | ||
489 | /* | |
490 | * XXX x_forwarded_for_iterator should really be a list of | |
491 | * IP addresses, but it's a String instead. We have to | |
492 | * walk backwards through the String, biting off the last | |
493 | * comma-delimited part each time. As long as the data is in | |
494 | * a String, we should probably implement and use a variant of | |
495 | * strListGetItem() that walks backwards instead of forwards | |
496 | * through a comma-separated list. But we don't even do that; | |
497 | * we just do the work in-line here. | |
498 | */ | |
499 | /* skip trailing space and commas */ | |
500 | while (l > 0 && (p[l-1] == ',' || xisspace(p[l-1]))) | |
5e263176 | 501 | --l; |
3d674977 AJ |
502 | request->x_forwarded_for_iterator.cut(l); |
503 | /* look for start of last item in list */ | |
504 | while (l > 0 && ! (p[l-1] == ',' || xisspace(p[l-1]))) | |
5e263176 | 505 | --l; |
3d674977 | 506 | asciiaddr = p+l; |
fafd0efa | 507 | if ((addr = asciiaddr)) { |
3d674977 AJ |
508 | request->indirect_client_addr = addr; |
509 | request->x_forwarded_for_iterator.cut(l); | |
d096ace1 AJ |
510 | calloutContext->acl_checklist = clientAclChecklistCreate(Config.accessList.followXFF, http); |
511 | if (!Config.onoff.acl_uses_indirect_client) { | |
512 | /* override the default src_addr tested if we have to go deeper than one level into XFF */ | |
513 | Filled(calloutContext->acl_checklist)->src_addr = request->indirect_client_addr; | |
3d674977 | 514 | } |
d096ace1 | 515 | calloutContext->acl_checklist->nonBlockingCheck(clientFollowXForwardedForCheck, data); |
3d674977 AJ |
516 | return; |
517 | } | |
518 | } /*if (answer == ACCESS_ALLOWED && | |
519 | request->x_forwarded_for_iterator.size () != 0)*/ | |
520 | ||
521 | /* clean up, and pass control to clientAccessCheck */ | |
26ac0430 | 522 | if (Config.onoff.log_uses_indirect_client) { |
3d674977 AJ |
523 | /* |
524 | * Ensure that the access log shows the indirect client | |
525 | * instead of the direct client. | |
526 | */ | |
527 | ConnStateData *conn = http->getConn(); | |
528 | conn->log_addr = request->indirect_client_addr; | |
529 | } | |
530 | request->x_forwarded_for_iterator.clean(); | |
531 | request->flags.done_follow_x_forwarded_for = 1; | |
532 | ||
d096ace1 AJ |
533 | if (answer != ACCESS_ALLOWED && answer != ACCESS_DENIED) { |
534 | debugs(28, DBG_CRITICAL, "ERROR: Processing X-Forwarded-For. Stopping at IP address: " << request->indirect_client_addr ); | |
493d3865 AJ |
535 | } |
536 | ||
537 | /* process actual access ACL as normal. */ | |
538 | calloutContext->clientAccessCheck(); | |
3d674977 AJ |
539 | } |
540 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
541 | ||
fe97983f AJ |
542 | static void |
543 | hostHeaderIpVerifyWrapper(const ipcache_addrs* ia, const DnsLookupDetails &dns, void *data) | |
544 | { | |
545 | ClientRequestContext *c = static_cast<ClientRequestContext*>(data); | |
546 | c->hostHeaderIpVerify(ia, dns); | |
547 | } | |
548 | ||
549 | void | |
550 | ClientRequestContext::hostHeaderIpVerify(const ipcache_addrs* ia, const DnsLookupDetails &dns) | |
551 | { | |
552 | Comm::ConnectionPointer clientConn = http->getConn()->clientConnection; | |
553 | ||
554 | // note the DNS details for the transaction stats. | |
555 | http->request->recordLookup(dns); | |
556 | ||
557 | if (ia != NULL && ia->count > 0) { | |
558 | // Is the NAT destination IP in DNS? | |
5086523e | 559 | for (int i = 0; i < ia->count; ++i) { |
fe97983f AJ |
560 | if (clientConn->local.matchIPAddr(ia->in_addrs[i]) == 0) { |
561 | debugs(85, 3, HERE << "validate IP " << clientConn->local << " possible from Host:"); | |
891dfa1b | 562 | http->request->flags.hostVerified = 1; |
fe97983f AJ |
563 | http->doCallouts(); |
564 | return; | |
565 | } | |
566 | debugs(85, 3, HERE << "validate IP " << clientConn->local << " non-match from Host: IP " << ia->in_addrs[i]); | |
567 | } | |
568 | } | |
569 | debugs(85, 3, HERE << "FAIL: validate IP " << clientConn->local << " possible from Host:"); | |
05b28f84 | 570 | hostHeaderVerifyFailed("local IP", "any domain IP"); |
fe97983f AJ |
571 | } |
572 | ||
573 | void | |
05b28f84 | 574 | ClientRequestContext::hostHeaderVerifyFailed(const char *A, const char *B) |
fe97983f | 575 | { |
2962f8b8 AJ |
576 | // IP address validation for Host: failed. Admin wants to ignore them. |
577 | // NP: we do not yet handle CONNECT tunnels well, so ignore for them | |
578 | if (!Config.onoff.hostStrictVerify && http->request->method != METHOD_CONNECT) { | |
579 | debugs(85, 3, "SECURITY ALERT: Host header forgery detected on " << http->getConn()->clientConnection << | |
580 | " (" << A << " does not match " << B << ") on URL: " << urlCanonical(http->request)); | |
581 | ||
582 | // NP: it is tempting to use 'flags.nocache' but that is all about READing cache data. | |
583 | // The problems here are about WRITE for new cache content, which means flags.cachable | |
584 | http->request->flags.cachable = 0; // MUST NOT cache (for now) | |
585 | // XXX: when we have updated the cache key to base on raw-IP + URI this cacheable limit can go. | |
586 | http->request->flags.hierarchical = 0; // MUST NOT pass to peers (for now) | |
587 | // XXX: when we have sorted out the best way to relay requests properly to peers this hierarchical limit can go. | |
567fe088 | 588 | http->doCallouts(); |
2962f8b8 AJ |
589 | return; |
590 | } | |
591 | ||
8f489ad7 AJ |
592 | debugs(85, DBG_IMPORTANT, "SECURITY ALERT: Host header forgery detected on " << |
593 | http->getConn()->clientConnection << " (" << A << " does not match " << B << ")"); | |
594 | debugs(85, DBG_IMPORTANT, "SECURITY ALERT: By user agent: " << http->request->header.getStr(HDR_USER_AGENT)); | |
595 | debugs(85, DBG_IMPORTANT, "SECURITY ALERT: on URL: " << urlCanonical(http->request)); | |
fe97983f AJ |
596 | |
597 | // IP address validation for Host: failed. reject the connection. | |
598 | clientStreamNode *node = (clientStreamNode *)http->client_stream.tail->prev->data; | |
599 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
600 | assert (repContext); | |
2962f8b8 | 601 | repContext->setReplyToError(ERR_CONFLICT_HOST, HTTP_CONFLICT, |
fe97983f AJ |
602 | http->request->method, NULL, |
603 | http->getConn()->clientConnection->remote, | |
604 | http->request, | |
605 | NULL, | |
606 | #if USE_AUTH | |
607 | http->getConn() != NULL && http->getConn()->auth_user_request != NULL ? | |
608 | http->getConn()->auth_user_request : http->request->auth_user_request); | |
609 | #else | |
610 | NULL); | |
611 | #endif | |
612 | node = (clientStreamNode *)http->client_stream.tail->data; | |
613 | clientStreamRead(node, http, node->readBuffer); | |
614 | } | |
615 | ||
616 | void | |
617 | ClientRequestContext::hostHeaderVerify() | |
618 | { | |
619 | // Require a Host: header. | |
620 | const char *host = http->request->header.getStr(HDR_HOST); | |
fe97983f AJ |
621 | |
622 | if (!host) { | |
623 | // TODO: dump out the HTTP/1.1 error about missing host header. | |
624 | // otherwise this is fine, can't forge a header value when its not even set. | |
625 | debugs(85, 3, HERE << "validate skipped with no Host: header present."); | |
626 | http->doCallouts(); | |
627 | return; | |
628 | } | |
629 | ||
8f489ad7 AJ |
630 | if (http->request->flags.internal) { |
631 | // TODO: kill this when URL handling allows partial URLs out of accel mode | |
632 | // and we no longer screw with the URL just to add our internal host there | |
633 | debugs(85, 6, HERE << "validate skipped due to internal composite URL."); | |
634 | http->doCallouts(); | |
635 | return; | |
636 | } | |
637 | ||
fe97983f AJ |
638 | // Locate if there is a port attached, strip ready for IP lookup |
639 | char *portStr = NULL; | |
91663dce AJ |
640 | char *hostB = xstrdup(host); |
641 | host = hostB; | |
fe97983f AJ |
642 | if (host[0] == '[') { |
643 | // IPv6 literal. | |
fe97983f | 644 | portStr = strchr(hostB, ']'); |
91663dce AJ |
645 | if (portStr && *(++portStr) != ':') { |
646 | portStr = NULL; | |
fe97983f | 647 | } |
91663dce | 648 | } else { |
fe97983f | 649 | // Domain or IPv4 literal with port |
fe97983f | 650 | portStr = strrchr(hostB, ':'); |
91663dce AJ |
651 | } |
652 | ||
653 | uint16_t port = 0; | |
654 | if (portStr) { | |
655 | *portStr = '\0'; // strip the ':' | |
656 | if (*(++portStr) != '\0') | |
657 | port = xatoi(portStr); | |
fe97983f AJ |
658 | } |
659 | ||
660 | debugs(85, 3, HERE << "validate host=" << host << ", port=" << port << ", portStr=" << (portStr?portStr:"NULL")); | |
661 | if (http->request->flags.intercepted || http->request->flags.spoof_client_ip) { | |
ba4d9da0 | 662 | // verify the Host: port (if any) matches the apparent destination |
fe97983f | 663 | if (portStr && port != http->getConn()->clientConnection->local.GetPort()) { |
05b28f84 AJ |
664 | debugs(85, 3, HERE << "FAIL on validate port " << http->getConn()->clientConnection->local.GetPort() << |
665 | " matches Host: port " << port << " (" << portStr << ")"); | |
666 | hostHeaderVerifyFailed("intercepted port", portStr); | |
ba4d9da0 AJ |
667 | } else { |
668 | // XXX: match the scheme default port against the apparent destination | |
fe97983f | 669 | |
ba4d9da0 AJ |
670 | // verify the destination DNS is one of the Host: headers IPs |
671 | ipcache_nbgethostbyname(host, hostHeaderIpVerifyWrapper, this); | |
672 | } | |
06059513 | 673 | } else if (!Config.onoff.hostStrictVerify) { |
90529125 AJ |
674 | debugs(85, 3, HERE << "validate skipped."); |
675 | http->doCallouts(); | |
8f489ad7 AJ |
676 | } else if (strlen(host) != strlen(http->request->GetHost())) { |
677 | // Verify forward-proxy requested URL domain matches the Host: header | |
678 | debugs(85, 3, HERE << "FAIL on validate URL domain length " << http->request->GetHost() << " matches Host: " << host); | |
679 | hostHeaderVerifyFailed(host, http->request->GetHost()); | |
680 | } else if (matchDomainName(host, http->request->GetHost()) != 0) { | |
ba4d9da0 | 681 | // Verify forward-proxy requested URL domain matches the Host: header |
fe97983f | 682 | debugs(85, 3, HERE << "FAIL on validate URL domain " << http->request->GetHost() << " matches Host: " << host); |
05b28f84 | 683 | hostHeaderVerifyFailed(host, http->request->GetHost()); |
ba4d9da0 AJ |
684 | } else if (portStr && port != http->request->port) { |
685 | // Verify forward-proxy requested URL domain matches the Host: header | |
686 | debugs(85, 3, HERE << "FAIL on validate URL port " << http->request->port << " matches Host: port " << portStr); | |
687 | hostHeaderVerifyFailed("URL port", portStr); | |
65d2fdbf | 688 | } else if (!portStr && http->request->method != METHOD_CONNECT && http->request->port != urlDefaultPort(http->request->protocol)) { |
ba4d9da0 | 689 | // Verify forward-proxy requested URL domain matches the Host: header |
65d2fdbf | 690 | // Special case: we don't have a default-port to check for CONNECT. Assume URL is correct. |
ba4d9da0 AJ |
691 | debugs(85, 3, HERE << "FAIL on validate URL port " << http->request->port << " matches Host: default port " << urlDefaultPort(http->request->protocol)); |
692 | hostHeaderVerifyFailed("URL port", "default port"); | |
693 | } else { | |
694 | // Okay no problem. | |
695 | debugs(85, 3, HERE << "validate passed."); | |
2962f8b8 | 696 | http->request->flags.hostVerified = 1; |
ba4d9da0 | 697 | http->doCallouts(); |
fe97983f | 698 | } |
ba4d9da0 | 699 | safe_free(hostB); |
fe97983f AJ |
700 | } |
701 | ||
edce4d98 | 702 | /* This is the entry point for external users of the client_side routines */ |
703 | void | |
de31d06f | 704 | ClientRequestContext::clientAccessCheck() |
edce4d98 | 705 | { |
3d674977 AJ |
706 | #if FOLLOW_X_FORWARDED_FOR |
707 | if (!http->request->flags.done_follow_x_forwarded_for && | |
26ac0430 AJ |
708 | Config.accessList.followXFF && |
709 | http->request->header.has(HDR_X_FORWARDED_FOR)) { | |
d096ace1 AJ |
710 | |
711 | /* we always trust the direct client address for actual use */ | |
712 | http->request->indirect_client_addr = http->request->client_addr; | |
fafd0efa | 713 | http->request->indirect_client_addr.SetPort(0); |
d096ace1 AJ |
714 | |
715 | /* setup the XFF iterator for processing */ | |
716 | http->request->x_forwarded_for_iterator = http->request->header.getList(HDR_X_FORWARDED_FOR); | |
717 | ||
718 | /* begin by checking to see if we trust direct client enough to walk XFF */ | |
719 | acl_checklist = clientAclChecklistCreate(Config.accessList.followXFF, http); | |
720 | acl_checklist->nonBlockingCheck(clientFollowXForwardedForCheck, this); | |
3d674977 AJ |
721 | return; |
722 | } | |
723 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
493d3865 | 724 | |
b50e327b AJ |
725 | if (Config.accessList.http) { |
726 | acl_checklist = clientAclChecklistCreate(Config.accessList.http, http); | |
727 | acl_checklist->nonBlockingCheck(clientAccessCheckDoneWrapper, this); | |
728 | } else { | |
729 | debugs(0, DBG_CRITICAL, "No http_access configuration found. This will block ALL traffic"); | |
730 | clientAccessCheckDone(ACCESS_DENIED); | |
731 | } | |
edce4d98 | 732 | } |
733 | ||
533493da AJ |
734 | /** |
735 | * Identical in operation to clientAccessCheck() but performed later using different configured ACL list. | |
736 | * The default here is to allow all. Since the earlier http_access should do a default deny all. | |
737 | * This check is just for a last-minute denial based on adapted request headers. | |
738 | */ | |
739 | void | |
740 | ClientRequestContext::clientAccessCheck2() | |
741 | { | |
742 | if (Config.accessList.adapted_http) { | |
743 | acl_checklist = clientAclChecklistCreate(Config.accessList.adapted_http, http); | |
744 | acl_checklist->nonBlockingCheck(clientAccessCheckDoneWrapper, this); | |
745 | } else { | |
327e2131 | 746 | debugs(85, 2, HERE << "No adapted_http_access configuration. default: ALLOW"); |
533493da AJ |
747 | clientAccessCheckDone(ACCESS_ALLOWED); |
748 | } | |
749 | } | |
750 | ||
edce4d98 | 751 | void |
2efeb0b7 | 752 | clientAccessCheckDoneWrapper(allow_t answer, void *data) |
edce4d98 | 753 | { |
de31d06f | 754 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; |
fbade053 | 755 | |
de31d06f | 756 | if (!calloutContext->httpStateIsValid()) |
62e76326 | 757 | return; |
62e76326 | 758 | |
de31d06f | 759 | calloutContext->clientAccessCheckDone(answer); |
760 | } | |
761 | ||
9d5e7196 AJ |
762 | void |
763 | ClientRequestContext::clientAccessCheckDone(const allow_t &answer) | |
de31d06f | 764 | { |
765 | acl_checklist = NULL; | |
edce4d98 | 766 | err_type page_id; |
767 | http_status status; | |
9d5e7196 AJ |
768 | debugs(85, 2, "The request " << |
769 | RequestMethodStr(http->request->method) << " " << | |
770 | http->uri << " is " << answer << | |
771 | ", because it matched '" << | |
772 | (AclMatchedName ? AclMatchedName : "NO ACL's") << "'" ); | |
f5691f9c | 773 | |
2f1431ea AJ |
774 | #if USE_AUTH |
775 | char const *proxy_auth_msg = "<null>"; | |
94a396a3 | 776 | if (http->getConn() != NULL && http->getConn()->auth_user_request != NULL) |
f5691f9c | 777 | proxy_auth_msg = http->getConn()->auth_user_request->denyMessage("<null>"); |
778 | else if (http->request->auth_user_request != NULL) | |
779 | proxy_auth_msg = http->request->auth_user_request->denyMessage("<null>"); | |
2f1431ea | 780 | #endif |
62e76326 | 781 | |
dd332b92 | 782 | if (answer != ACCESS_ALLOWED) { |
9d5e7196 | 783 | // auth has a grace period where credentials can be expired but okay not to challenge. |
309347ef | 784 | |
9d5e7196 AJ |
785 | /* Send an auth challenge or error */ |
786 | // XXX: do we still need aclIsProxyAuth() ? | |
dd332b92 | 787 | bool auth_challenge = (answer == ACCESS_AUTH_REQUIRED || aclIsProxyAuth(AclMatchedName)); |
9d5e7196 AJ |
788 | debugs(85, 5, "Access Denied: " << http->uri); |
789 | debugs(85, 5, "AclMatchedName = " << (AclMatchedName ? AclMatchedName : "<null>")); | |
2f1431ea | 790 | #if USE_AUTH |
9d5e7196 AJ |
791 | if (auth_challenge) |
792 | debugs(33, 5, "Proxy Auth Message = " << (proxy_auth_msg ? proxy_auth_msg : "<null>")); | |
2f1431ea | 793 | #endif |
9ce7856a | 794 | |
9d5e7196 AJ |
795 | /* |
796 | * NOTE: get page_id here, based on AclMatchedName because if | |
797 | * USE_DELAY_POOLS is enabled, then AclMatchedName gets clobbered in | |
798 | * the clientCreateStoreEntry() call just below. Pedro Ribeiro | |
799 | * <pribeiro@isel.pt> | |
800 | */ | |
801 | page_id = aclGetDenyInfoPage(&Config.denyInfoList, AclMatchedName, answer != ACCESS_AUTH_REQUIRED); | |
9ce7856a | 802 | |
9d5e7196 | 803 | http->logType = LOG_TCP_DENIED; |
62e76326 | 804 | |
9d5e7196 | 805 | if (auth_challenge) { |
2f1431ea | 806 | #if USE_AUTH |
9d5e7196 AJ |
807 | if (http->request->flags.sslBumped) { |
808 | /*SSL Bumped request, authentication is not possible*/ | |
809 | status = HTTP_FORBIDDEN; | |
810 | } else if (!http->flags.accel) { | |
811 | /* Proxy authorisation needed */ | |
812 | status = HTTP_PROXY_AUTHENTICATION_REQUIRED; | |
813 | } else { | |
814 | /* WWW authorisation needed */ | |
815 | status = HTTP_UNAUTHORIZED; | |
816 | } | |
ed6163ef | 817 | #else |
9d5e7196 AJ |
818 | // need auth, but not possible to do. |
819 | status = HTTP_FORBIDDEN; | |
ed6163ef | 820 | #endif |
9d5e7196 AJ |
821 | if (page_id == ERR_NONE) |
822 | page_id = ERR_CACHE_ACCESS_DENIED; | |
823 | } else { | |
824 | status = HTTP_FORBIDDEN; | |
ed6163ef | 825 | |
9d5e7196 AJ |
826 | if (page_id == ERR_NONE) |
827 | page_id = ERR_ACCESS_DENIED; | |
828 | } | |
62e76326 | 829 | |
9d5e7196 AJ |
830 | Ip::Address tmpnoaddr; |
831 | tmpnoaddr.SetNoAddr(); | |
87f237a9 | 832 | error = clientBuildError(page_id, status, |
68715527 CT |
833 | NULL, |
834 | http->getConn() != NULL ? http->getConn()->clientConnection->remote : tmpnoaddr, | |
835 | http->request | |
87f237a9 | 836 | ); |
68715527 | 837 | |
2f1431ea | 838 | #if USE_AUTH |
87f237a9 | 839 | error->auth_user_request = |
68715527 CT |
840 | http->getConn() != NULL && http->getConn()->auth_user_request != NULL ? |
841 | http->getConn()->auth_user_request : http->request->auth_user_request; | |
2f1431ea | 842 | #endif |
68715527 CT |
843 | |
844 | readNextRequest = true; | |
9d5e7196 | 845 | } |
de31d06f | 846 | |
dd332b92 | 847 | /* ACCESS_ALLOWED continues here ... */ |
de31d06f | 848 | safe_free(http->uri); |
849 | ||
850 | http->uri = xstrdup(urlCanonical(http->request)); | |
851 | ||
852 | http->doCallouts(); | |
853 | } | |
854 | ||
a83c6ed6 | 855 | #if USE_ADAPTATION |
de31d06f | 856 | void |
79628299 | 857 | ClientHttpRequest::noteAdaptationAclCheckDone(Adaptation::ServiceGroupPointer g) |
de31d06f | 858 | { |
a83c6ed6 | 859 | debugs(93,3,HERE << this << " adaptationAclCheckDone called"); |
6ec67de9 | 860 | |
e1381638 | 861 | #if ICAP_CLIENT |
79628299 | 862 | Adaptation::Icap::History::Pointer ih = request->icapHistory(); |
e1381638 | 863 | if (ih != NULL) { |
79628299 CT |
864 | if (getConn() != NULL) { |
865 | ih->rfc931 = getConn()->clientConnection->rfc931; | |
e1381638 | 866 | #if USE_SSL |
79628299 CT |
867 | assert(getConn()->clientConnection != NULL); |
868 | ih->ssluser = sslGetUserEmail(fd_table[getConn()->clientConnection->fd].ssl); | |
e1381638 | 869 | #endif |
3ff65596 | 870 | } |
79628299 CT |
871 | ih->log_uri = log_uri; |
872 | ih->req_sz = req_sz; | |
3ff65596 AR |
873 | } |
874 | #endif | |
875 | ||
a22e6cd3 AR |
876 | if (!g) { |
877 | debugs(85,3, HERE << "no adaptation needed"); | |
79628299 | 878 | doCallouts(); |
5f8252d2 | 879 | return; |
880 | } | |
de31d06f | 881 | |
79628299 | 882 | startAdaptation(g); |
edce4d98 | 883 | } |
884 | ||
de31d06f | 885 | #endif |
886 | ||
14cc8559 | 887 | static void |
2efeb0b7 | 888 | clientRedirectAccessCheckDone(allow_t answer, void *data) |
14cc8559 | 889 | { |
890 | ClientRequestContext *context = (ClientRequestContext *)data; | |
9d5e7196 AJ |
891 | ClientHttpRequest *http = context->http; |
892 | context->acl_checklist = NULL; | |
14cc8559 | 893 | |
894 | if (answer == ACCESS_ALLOWED) | |
9d5e7196 | 895 | redirectStart(http, clientRedirectDoneWrapper, context); |
14cc8559 | 896 | else |
de31d06f | 897 | context->clientRedirectDone(NULL); |
14cc8559 | 898 | } |
899 | ||
de31d06f | 900 | void |
901 | ClientRequestContext::clientRedirectStart() | |
14cc8559 | 902 | { |
48e7baac | 903 | debugs(33, 5, HERE << "'" << http->uri << "'"); |
14cc8559 | 904 | |
14cc8559 | 905 | if (Config.accessList.redirector) { |
de31d06f | 906 | acl_checklist = clientAclChecklistCreate(Config.accessList.redirector, http); |
907 | acl_checklist->nonBlockingCheck(clientRedirectAccessCheckDone, this); | |
14cc8559 | 908 | } else |
de31d06f | 909 | redirectStart(http, clientRedirectDoneWrapper, this); |
14cc8559 | 910 | } |
911 | ||
edce4d98 | 912 | static int |
59a1efb2 | 913 | clientHierarchical(ClientHttpRequest * http) |
edce4d98 | 914 | { |
915 | const char *url = http->uri; | |
190154cf | 916 | HttpRequest *request = http->request; |
60745f24 | 917 | HttpRequestMethod method = request->method; |
edce4d98 | 918 | const wordlist *p = NULL; |
919 | ||
2962f8b8 AJ |
920 | // intercepted requests MUST NOT (yet) be sent to peers unless verified |
921 | if (!request->flags.hostVerified && (request->flags.intercepted || request->flags.spoof_client_ip)) | |
922 | return 0; | |
923 | ||
69660be0 | 924 | /* |
925 | * IMS needs a private key, so we can use the hierarchy for IMS only if our | |
926 | * neighbors support private keys | |
927 | */ | |
62e76326 | 928 | |
edce4d98 | 929 | if (request->flags.ims && !neighbors_do_private_keys) |
62e76326 | 930 | return 0; |
931 | ||
69660be0 | 932 | /* |
933 | * This is incorrect: authenticating requests can be sent via a hierarchy | |
06b97e72 | 934 | * (they can even be cached if the correct headers are set on the reply) |
edce4d98 | 935 | */ |
936 | if (request->flags.auth) | |
62e76326 | 937 | return 0; |
938 | ||
edce4d98 | 939 | if (method == METHOD_TRACE) |
62e76326 | 940 | return 1; |
941 | ||
edce4d98 | 942 | if (method != METHOD_GET) |
62e76326 | 943 | return 0; |
944 | ||
edce4d98 | 945 | /* scan hierarchy_stoplist */ |
946 | for (p = Config.hierarchy_stoplist; p; p = p->next) | |
62e76326 | 947 | if (strstr(url, p->key)) |
948 | return 0; | |
949 | ||
edce4d98 | 950 | if (request->flags.loopdetect) |
62e76326 | 951 | return 0; |
952 | ||
0c3d3f65 | 953 | if (request->protocol == AnyP::PROTO_HTTP) |
62e76326 | 954 | return httpCachable(method); |
955 | ||
0c3d3f65 | 956 | if (request->protocol == AnyP::PROTO_GOPHER) |
62e76326 | 957 | return gopherCachable(request); |
958 | ||
39a19cb7 | 959 | if (request->protocol == AnyP::PROTO_CACHE_OBJECT) |
62e76326 | 960 | return 0; |
961 | ||
edce4d98 | 962 | return 1; |
963 | } | |
964 | ||
46a1f562 HN |
965 | static void |
966 | clientCheckPinning(ClientHttpRequest * http) | |
967 | { | |
968 | HttpRequest *request = http->request; | |
969 | HttpHeader *req_hdr = &request->header; | |
970 | ConnStateData *http_conn = http->getConn(); | |
971 | ||
972 | /* Internal requests such as those from ESI includes may be without | |
973 | * a client connection | |
974 | */ | |
975 | if (!http_conn) | |
f54f527e | 976 | return; |
46a1f562 HN |
977 | |
978 | request->flags.connection_auth_disabled = http_conn->port->connection_auth_disabled; | |
979 | if (!request->flags.connection_auth_disabled) { | |
73c36fd9 | 980 | if (Comm::IsConnOpen(http_conn->pinning.serverConnection)) { |
46a1f562 HN |
981 | if (http_conn->pinning.auth) { |
982 | request->flags.connection_auth = 1; | |
983 | request->flags.auth = 1; | |
984 | } else { | |
985 | request->flags.connection_proxy_auth = 1; | |
986 | } | |
b1cf2350 AJ |
987 | // These should already be linked correctly. |
988 | assert(request->clientConnectionManager == http_conn); | |
46a1f562 HN |
989 | } |
990 | } | |
991 | ||
992 | /* check if connection auth is used, and flag as candidate for pinning | |
993 | * in such case. | |
994 | * Note: we may need to set flags.connection_auth even if the connection | |
995 | * is already pinned if it was pinned earlier due to proxy auth | |
996 | */ | |
997 | if (!request->flags.connection_auth) { | |
998 | if (req_hdr->has(HDR_AUTHORIZATION) || req_hdr->has(HDR_PROXY_AUTHORIZATION)) { | |
999 | HttpHeaderPos pos = HttpHeaderInitPos; | |
1000 | HttpHeaderEntry *e; | |
1001 | int may_pin = 0; | |
1002 | while ((e = req_hdr->getEntry(&pos))) { | |
1003 | if (e->id == HDR_AUTHORIZATION || e->id == HDR_PROXY_AUTHORIZATION) { | |
1004 | const char *value = e->value.rawBuf(); | |
1005 | if (strncasecmp(value, "NTLM ", 5) == 0 | |
1006 | || | |
1007 | strncasecmp(value, "Negotiate ", 10) == 0 | |
1008 | || | |
1009 | strncasecmp(value, "Kerberos ", 9) == 0) { | |
1010 | if (e->id == HDR_AUTHORIZATION) { | |
1011 | request->flags.connection_auth = 1; | |
1012 | may_pin = 1; | |
1013 | } else { | |
1014 | request->flags.connection_proxy_auth = 1; | |
1015 | may_pin = 1; | |
1016 | } | |
1017 | } | |
1018 | } | |
1019 | } | |
1020 | if (may_pin && !request->pinnedConnection()) { | |
b1cf2350 AJ |
1021 | // These should already be linked correctly. Just need the ServerConnection to pinn. |
1022 | assert(request->clientConnectionManager == http_conn); | |
46a1f562 HN |
1023 | } |
1024 | } | |
1025 | } | |
1026 | } | |
1027 | ||
edce4d98 | 1028 | static void |
59a1efb2 | 1029 | clientInterpretRequestHeaders(ClientHttpRequest * http) |
edce4d98 | 1030 | { |
190154cf | 1031 | HttpRequest *request = http->request; |
0ef77270 | 1032 | HttpHeader *req_hdr = &request->header; |
5086523e | 1033 | bool no_cache = false; |
edce4d98 | 1034 | const char *str; |
62e76326 | 1035 | |
edce4d98 | 1036 | request->imslen = -1; |
a9925b40 | 1037 | request->ims = req_hdr->getTime(HDR_IF_MODIFIED_SINCE); |
62e76326 | 1038 | |
edce4d98 | 1039 | if (request->ims > 0) |
62e76326 | 1040 | request->flags.ims = 1; |
1041 | ||
432bc83c HN |
1042 | if (!request->flags.ignore_cc) { |
1043 | if (req_hdr->has(HDR_PRAGMA)) { | |
1044 | String s = req_hdr->getList(HDR_PRAGMA); | |
62e76326 | 1045 | |
432bc83c | 1046 | if (strListIsMember(&s, "no-cache", ',')) |
5086523e | 1047 | no_cache=true; |
30abd221 | 1048 | |
432bc83c HN |
1049 | s.clean(); |
1050 | } | |
62e76326 | 1051 | |
432bc83c | 1052 | if (request->cache_control) |
4ce6e3b5 | 1053 | if (request->cache_control->noCache()) |
5086523e | 1054 | no_cache=true; |
62e76326 | 1055 | |
432bc83c HN |
1056 | /* |
1057 | * Work around for supporting the Reload button in IE browsers when Squid | |
1058 | * is used as an accelerator or transparent proxy, by turning accelerated | |
1059 | * IMS request to no-cache requests. Now knows about IE 5.5 fix (is | |
1060 | * actually only fixed in SP1, but we can't tell whether we are talking to | |
1061 | * SP1 or not so all 5.5 versions are treated 'normally'). | |
1062 | */ | |
1063 | if (Config.onoff.ie_refresh) { | |
1064 | if (http->flags.accel && request->flags.ims) { | |
1065 | if ((str = req_hdr->getStr(HDR_USER_AGENT))) { | |
1066 | if (strstr(str, "MSIE 5.01") != NULL) | |
5086523e | 1067 | no_cache=true; |
432bc83c | 1068 | else if (strstr(str, "MSIE 5.0") != NULL) |
5086523e | 1069 | no_cache=true; |
432bc83c | 1070 | else if (strstr(str, "MSIE 4.") != NULL) |
5086523e | 1071 | no_cache=true; |
432bc83c | 1072 | else if (strstr(str, "MSIE 3.") != NULL) |
5086523e | 1073 | no_cache=true; |
432bc83c | 1074 | } |
62e76326 | 1075 | } |
1076 | } | |
edce4d98 | 1077 | } |
914b89a2 | 1078 | |
1079 | if (request->method == METHOD_OTHER) { | |
5086523e | 1080 | no_cache=true; |
60745f24 | 1081 | } |
62e76326 | 1082 | |
edce4d98 | 1083 | if (no_cache) { |
626096be | 1084 | #if USE_HTTP_VIOLATIONS |
62e76326 | 1085 | |
1086 | if (Config.onoff.reload_into_ims) | |
1087 | request->flags.nocache_hack = 1; | |
1088 | else if (refresh_nocache_hack) | |
1089 | request->flags.nocache_hack = 1; | |
1090 | else | |
edce4d98 | 1091 | #endif |
62e76326 | 1092 | |
1093 | request->flags.nocache = 1; | |
edce4d98 | 1094 | } |
62e76326 | 1095 | |
0ef77270 | 1096 | /* ignore range header in non-GETs or non-HEADs */ |
1097 | if (request->method == METHOD_GET || request->method == METHOD_HEAD) { | |
56713d9a AR |
1098 | // XXX: initialize if we got here without HttpRequest::parseHeader() |
1099 | if (!request->range) | |
1100 | request->range = req_hdr->getRange(); | |
62e76326 | 1101 | |
1102 | if (request->range) { | |
1103 | request->flags.range = 1; | |
1104 | clientStreamNode *node = (clientStreamNode *)http->client_stream.tail->data; | |
1105 | /* XXX: This is suboptimal. We should give the stream the range set, | |
1106 | * and thereby let the top of the stream set the offset when the | |
26ac0430 | 1107 | * size becomes known. As it is, we will end up requesting from 0 |
62e76326 | 1108 | * for evey -X range specification. |
1109 | * RBC - this may be somewhat wrong. We should probably set the range | |
1110 | * iter up at this point. | |
1111 | */ | |
1112 | node->readBuffer.offset = request->range->lowestOffset(0); | |
1113 | http->range_iter.pos = request->range->begin(); | |
1114 | http->range_iter.valid = true; | |
1115 | } | |
edce4d98 | 1116 | } |
62e76326 | 1117 | |
0ef77270 | 1118 | /* Only HEAD and GET requests permit a Range or Request-Range header. |
1119 | * If these headers appear on any other type of request, delete them now. | |
1120 | */ | |
1121 | else { | |
1122 | req_hdr->delById(HDR_RANGE); | |
1123 | req_hdr->delById(HDR_REQUEST_RANGE); | |
56713d9a | 1124 | delete request->range; |
0ef77270 | 1125 | request->range = NULL; |
1126 | } | |
1127 | ||
a9925b40 | 1128 | if (req_hdr->has(HDR_AUTHORIZATION)) |
62e76326 | 1129 | request->flags.auth = 1; |
1130 | ||
46a1f562 | 1131 | clientCheckPinning(http); |
d67acb4e | 1132 | |
edce4d98 | 1133 | if (request->login[0] != '\0') |
62e76326 | 1134 | request->flags.auth = 1; |
1135 | ||
a9925b40 | 1136 | if (req_hdr->has(HDR_VIA)) { |
30abd221 | 1137 | String s = req_hdr->getList(HDR_VIA); |
62e76326 | 1138 | /* |
3c4fcf0f | 1139 | * ThisCache cannot be a member of Via header, "1.1 ThisCache" can. |
62e76326 | 1140 | * Note ThisCache2 has a space prepended to the hostname so we don't |
1141 | * accidentally match super-domains. | |
1142 | */ | |
1143 | ||
1144 | if (strListIsSubstr(&s, ThisCache2, ',')) { | |
1145 | debugObj(33, 1, "WARNING: Forwarding loop detected for:\n", | |
1146 | request, (ObjPackMethod) & httpRequestPack); | |
1147 | request->flags.loopdetect = 1; | |
1148 | } | |
1149 | ||
21f6708d | 1150 | #if USE_FORW_VIA_DB |
bb790702 | 1151 | fvdbCountVia(s.termedBuf()); |
62e76326 | 1152 | |
edce4d98 | 1153 | #endif |
62e76326 | 1154 | |
30abd221 | 1155 | s.clean(); |
edce4d98 | 1156 | } |
62e76326 | 1157 | |
21f6708d | 1158 | #if USE_FORW_VIA_DB |
62e76326 | 1159 | |
a9925b40 | 1160 | if (req_hdr->has(HDR_X_FORWARDED_FOR)) { |
30abd221 | 1161 | String s = req_hdr->getList(HDR_X_FORWARDED_FOR); |
bb790702 | 1162 | fvdbCountForw(s.termedBuf()); |
30abd221 | 1163 | s.clean(); |
edce4d98 | 1164 | } |
62e76326 | 1165 | |
edce4d98 | 1166 | #endif |
62e76326 | 1167 | |
610ee341 | 1168 | request->flags.cachable = http->request->cacheable(); |
62e76326 | 1169 | |
edce4d98 | 1170 | if (clientHierarchical(http)) |
62e76326 | 1171 | request->flags.hierarchical = 1; |
1172 | ||
bf8fe701 | 1173 | debugs(85, 5, "clientInterpretRequestHeaders: REQ_NOCACHE = " << |
1174 | (request->flags.nocache ? "SET" : "NOT SET")); | |
1175 | debugs(85, 5, "clientInterpretRequestHeaders: REQ_CACHABLE = " << | |
1176 | (request->flags.cachable ? "SET" : "NOT SET")); | |
1177 | debugs(85, 5, "clientInterpretRequestHeaders: REQ_HIERARCHICAL = " << | |
1178 | (request->flags.hierarchical ? "SET" : "NOT SET")); | |
62e76326 | 1179 | |
edce4d98 | 1180 | } |
1181 | ||
1182 | void | |
de31d06f | 1183 | clientRedirectDoneWrapper(void *data, char *result) |
edce4d98 | 1184 | { |
de31d06f | 1185 | ClientRequestContext *calloutContext = (ClientRequestContext *)data; |
db02222f | 1186 | |
de31d06f | 1187 | if (!calloutContext->httpStateIsValid()) |
62e76326 | 1188 | return; |
62e76326 | 1189 | |
de31d06f | 1190 | calloutContext->clientRedirectDone(result); |
1191 | } | |
1192 | ||
1193 | void | |
1194 | ClientRequestContext::clientRedirectDone(char *result) | |
1195 | { | |
190154cf | 1196 | HttpRequest *old_request = http->request; |
bf8fe701 | 1197 | debugs(85, 5, "clientRedirectDone: '" << http->uri << "' result=" << (result ? result : "NULL")); |
de31d06f | 1198 | assert(redirect_state == REDIRECT_PENDING); |
1199 | redirect_state = REDIRECT_DONE; | |
62e76326 | 1200 | |
edce4d98 | 1201 | if (result) { |
62e76326 | 1202 | http_status status = (http_status) atoi(result); |
1203 | ||
1204 | if (status == HTTP_MOVED_PERMANENTLY | |
1205 | || status == HTTP_MOVED_TEMPORARILY | |
1206 | || status == HTTP_SEE_OTHER | |
6bc67152 | 1207 | || status == HTTP_PERMANENT_REDIRECT |
62e76326 | 1208 | || status == HTTP_TEMPORARY_REDIRECT) { |
1209 | char *t = result; | |
1210 | ||
1211 | if ((t = strchr(result, ':')) != NULL) { | |
1212 | http->redirect.status = status; | |
1213 | http->redirect.location = xstrdup(t + 1); | |
e5b677f0 | 1214 | // TODO: validate the URL produced here is RFC 2616 compliant absolute URI |
62e76326 | 1215 | } else { |
6bc67152 | 1216 | debugs(85, DBG_CRITICAL, "ERROR: URL-rewrite produces invalid " << status << " redirect Location: " << result); |
62e76326 | 1217 | } |
e5b677f0 | 1218 | } else if (strcmp(result, http->uri)) { |
9be14530 AJ |
1219 | // XXX: validate the URL properly *without* generating a whole new request object right here. |
1220 | // XXX: the clone() should be done only AFTER we know the new URL is valid. | |
1221 | HttpRequest *new_request = old_request->clone(); | |
1222 | if (urlParse(old_request->method, result, new_request)) { | |
1223 | debugs(61,2, HERE << "URL-rewriter diverts URL from " << urlCanonical(old_request) << " to " << urlCanonical(new_request)); | |
1224 | ||
1225 | // update the new request to flag the re-writing was done on it | |
1226 | new_request->flags.redirected = 1; | |
1227 | ||
1228 | // unlink bodypipe from the old request. Not needed there any longer. | |
1229 | if (old_request->body_pipe != NULL) { | |
1230 | old_request->body_pipe = NULL; | |
1231 | debugs(61,2, HERE << "URL-rewriter diverts body_pipe " << new_request->body_pipe << | |
1232 | " from request " << old_request << " to " << new_request); | |
1233 | } | |
1234 | ||
1235 | // update the current working ClientHttpRequest fields | |
1236 | safe_free(http->uri); | |
1237 | http->uri = xstrdup(urlCanonical(new_request)); | |
1238 | HTTPMSGUNLOCK(old_request); | |
1239 | http->request = HTTPMSGLOCK(new_request); | |
1240 | } else { | |
e5b677f0 | 1241 | debugs(85, DBG_CRITICAL, "ERROR: URL-rewrite produces invalid request: " << |
c9fd01b4 | 1242 | old_request->method << " " << result << " " << old_request->http_ver); |
9be14530 AJ |
1243 | delete new_request; |
1244 | } | |
74b48915 | 1245 | } |
edce4d98 | 1246 | } |
62e76326 | 1247 | |
edce4d98 | 1248 | /* FIXME PIPELINE: This is innacurate during pipelining */ |
62e76326 | 1249 | |
73c36fd9 AJ |
1250 | if (http->getConn() != NULL && Comm::IsConnOpen(http->getConn()->clientConnection)) |
1251 | fd_note(http->getConn()->clientConnection->fd, http->uri); | |
62e76326 | 1252 | |
c8be6d7b | 1253 | assert(http->uri); |
62e76326 | 1254 | |
de31d06f | 1255 | http->doCallouts(); |
edce4d98 | 1256 | } |
1257 | ||
b50e327b AJ |
1258 | /** Test cache allow/deny configuration |
1259 | * Sets flags.cachable=1 if caching is not denied. | |
1260 | */ | |
edce4d98 | 1261 | void |
8e2745f4 | 1262 | ClientRequestContext::checkNoCache() |
edce4d98 | 1263 | { |
b50e327b AJ |
1264 | if (Config.accessList.noCache) { |
1265 | acl_checklist = clientAclChecklistCreate(Config.accessList.noCache, http); | |
1266 | acl_checklist->nonBlockingCheck(checkNoCacheDoneWrapper, this); | |
1267 | } else { | |
1268 | /* unless otherwise specified, we try to cache. */ | |
2efeb0b7 | 1269 | checkNoCacheDone(ACCESS_ALLOWED); |
b50e327b | 1270 | } |
edce4d98 | 1271 | } |
1272 | ||
de31d06f | 1273 | static void |
2efeb0b7 | 1274 | checkNoCacheDoneWrapper(allow_t answer, void *data) |
edce4d98 | 1275 | { |
de31d06f | 1276 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; |
e4a67a80 | 1277 | |
de31d06f | 1278 | if (!calloutContext->httpStateIsValid()) |
1279 | return; | |
1280 | ||
1281 | calloutContext->checkNoCacheDone(answer); | |
8e2745f4 | 1282 | } |
4fb35c3c | 1283 | |
8e2745f4 | 1284 | void |
2efeb0b7 | 1285 | ClientRequestContext::checkNoCacheDone(const allow_t &answer) |
62e76326 | 1286 | { |
8e2745f4 | 1287 | acl_checklist = NULL; |
2efeb0b7 | 1288 | http->request->flags.cachable = (answer == ACCESS_ALLOWED); |
de31d06f | 1289 | http->doCallouts(); |
edce4d98 | 1290 | } |
1291 | ||
e0c0d54c CT |
1292 | #if USE_SSL |
1293 | bool | |
1294 | ClientRequestContext::sslBumpAccessCheck() | |
1295 | { | |
08097970 AR |
1296 | // If SSL connection tunneling or bumping decision has been made, obey it. |
1297 | const Ssl::BumpMode bumpMode = http->getConn()->sslBumpMode; | |
1298 | if (bumpMode != Ssl::bumpEnd) { | |
1299 | debugs(85, 5, HERE << "SslBump already decided (" << bumpMode << | |
1300 | "), " << "ignoring ssl_bump for " << http->getConn()); | |
71cae389 | 1301 | http->al->ssl.bumpMode = bumpMode; // inherited from bumped connection |
08097970 AR |
1302 | return false; |
1303 | } | |
e0c0d54c | 1304 | |
08097970 AR |
1305 | // If we have not decided yet, decide whether to bump now. |
1306 | ||
1307 | // Bumping here can only start with a CONNECT request on a bumping port | |
1308 | // (bumping of intercepted SSL conns is decided before we get 1st request). | |
1309 | // We also do not bump redirected CONNECT requests. | |
1310 | if (http->request->method != METHOD_CONNECT || http->redirect.status || | |
87f237a9 | 1311 | !Config.accessList.ssl_bump || !http->getConn()->port->sslBump) { |
71cae389 | 1312 | http->al->ssl.bumpMode = Ssl::bumpEnd; // SslBump does not apply; log - |
08097970 | 1313 | debugs(85, 5, HERE << "cannot SslBump this request"); |
e0c0d54c CT |
1314 | return false; |
1315 | } | |
08097970 AR |
1316 | |
1317 | // Do not bump during authentication: clients would not proxy-authenticate | |
1318 | // if we delay a 407 response and respond with 200 OK to CONNECT. | |
1319 | if (error && error->httpStatus == HTTP_PROXY_AUTHENTICATION_REQUIRED) { | |
71cae389 | 1320 | http->al->ssl.bumpMode = Ssl::bumpEnd; // SslBump does not apply; log - |
08097970 AR |
1321 | debugs(85, 5, HERE << "no SslBump during proxy authentication"); |
1322 | return false; | |
1323 | } | |
1324 | ||
1325 | debugs(85, 5, HERE << "SslBump possible, checking ACL"); | |
1326 | ||
1327 | ACLFilledChecklist *acl_checklist = clientAclChecklistCreate(Config.accessList.ssl_bump, http); | |
1328 | acl_checklist->nonBlockingCheck(sslBumpAccessCheckDoneWrapper, this); | |
1329 | return true; | |
e0c0d54c CT |
1330 | } |
1331 | ||
f8901ea9 | 1332 | /** |
e0c0d54c CT |
1333 | * A wrapper function to use the ClientRequestContext::sslBumpAccessCheckDone method |
1334 | * as ACLFilledChecklist callback | |
1335 | */ | |
1336 | static void | |
2efeb0b7 | 1337 | sslBumpAccessCheckDoneWrapper(allow_t answer, void *data) |
e0c0d54c CT |
1338 | { |
1339 | ClientRequestContext *calloutContext = static_cast<ClientRequestContext *>(data); | |
9d5e7196 AJ |
1340 | |
1341 | if (!calloutContext->httpStateIsValid()) | |
1342 | return; | |
ed6163ef | 1343 | calloutContext->sslBumpAccessCheckDone(answer); |
e0c0d54c CT |
1344 | } |
1345 | ||
1346 | void | |
ed6163ef | 1347 | ClientRequestContext::sslBumpAccessCheckDone(const allow_t &answer) |
e0c0d54c | 1348 | { |
ed6163ef AJ |
1349 | if (!httpStateIsValid()) |
1350 | return; | |
1351 | ||
08097970 | 1352 | const Ssl::BumpMode bumpMode = answer == ACCESS_ALLOWED ? |
87f237a9 | 1353 | static_cast<Ssl::BumpMode>(answer.kind) : Ssl::bumpNone; |
08097970 | 1354 | http->sslBumpNeed(bumpMode); // for processRequest() to bump if needed |
71cae389 | 1355 | http->al->ssl.bumpMode = bumpMode; // for logging |
caf3666d | 1356 | |
e0c0d54c CT |
1357 | http->doCallouts(); |
1358 | } | |
1359 | #endif | |
1360 | ||
69660be0 | 1361 | /* |
1362 | * Identify requests that do not go through the store and client side stream | |
1363 | * and forward them to the appropriate location. All other requests, request | |
1364 | * them. | |
edce4d98 | 1365 | */ |
1366 | void | |
8e2745f4 | 1367 | ClientHttpRequest::processRequest() |
edce4d98 | 1368 | { |
60745f24 | 1369 | debugs(85, 4, "clientProcessRequest: " << RequestMethodStr(request->method) << " '" << uri << "'"); |
62e76326 | 1370 | |
31281814 | 1371 | if (request->method == METHOD_CONNECT && !redirect.status) { |
3712be3f | 1372 | #if USE_SSL |
31281814 AJ |
1373 | if (sslBumpNeeded()) { |
1374 | sslBumpStart(); | |
1375 | return; | |
1376 | } | |
3712be3f | 1377 | #endif |
62e76326 | 1378 | logType = LOG_TCP_MISS; |
f84dd7eb | 1379 | getConn()->stopReading(); // tunnels read for themselves |
41ebd397 | 1380 | tunnelStart(this, &out.size, &al->http.code); |
62e76326 | 1381 | return; |
edce4d98 | 1382 | } |
62e76326 | 1383 | |
8e2745f4 | 1384 | httpStart(); |
1385 | } | |
1386 | ||
1387 | void | |
1388 | ClientHttpRequest::httpStart() | |
1389 | { | |
559da936 | 1390 | PROF_start(httpStart); |
8e2745f4 | 1391 | logType = LOG_TAG_NONE; |
38e16f92 | 1392 | debugs(85, 4, "ClientHttpRequest::httpStart: " << Format::log_tags[logType] << " for '" << uri << "'"); |
bf8fe701 | 1393 | |
edce4d98 | 1394 | /* no one should have touched this */ |
8e2745f4 | 1395 | assert(out.offset == 0); |
edce4d98 | 1396 | /* Use the Stream Luke */ |
8e2745f4 | 1397 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->data; |
1398 | clientStreamRead(node, this, node->readBuffer); | |
559da936 | 1399 | PROF_stop(httpStart); |
edce4d98 | 1400 | } |
0655fa4d | 1401 | |
3712be3f | 1402 | #if USE_SSL |
1403 | ||
e0c0d54c | 1404 | void |
08097970 | 1405 | ClientHttpRequest::sslBumpNeed(Ssl::BumpMode mode) |
e0c0d54c | 1406 | { |
caf3666d | 1407 | debugs(83, 3, HERE << "sslBump required: "<< Ssl::bumpMode(mode)); |
08097970 | 1408 | sslBumpNeed_ = mode; |
3712be3f | 1409 | } |
1410 | ||
1411 | // called when comm_write has completed | |
1412 | static void | |
e0d28505 | 1413 | SslBumpEstablish(const Comm::ConnectionPointer &, char *, size_t, comm_err_t errflag, int, void *data) |
3712be3f | 1414 | { |
1415 | ClientHttpRequest *r = static_cast<ClientHttpRequest*>(data); | |
1416 | debugs(85, 5, HERE << "responded to CONNECT: " << r << " ? " << errflag); | |
1417 | ||
1418 | assert(r && cbdataReferenceValid(r)); | |
1419 | r->sslBumpEstablish(errflag); | |
1420 | } | |
1421 | ||
1422 | void | |
1423 | ClientHttpRequest::sslBumpEstablish(comm_err_t errflag) | |
1424 | { | |
1425 | // Bail out quickly on COMM_ERR_CLOSING - close handlers will tidy up | |
1426 | if (errflag == COMM_ERR_CLOSING) | |
1427 | return; | |
1428 | ||
1429 | if (errflag) { | |
1fa35be8 | 1430 | debugs(85, 3, HERE << "CONNECT response failure in SslBump: " << errflag); |
bbc83914 | 1431 | getConn()->clientConnection->close(); |
3712be3f | 1432 | return; |
1433 | } | |
1434 | ||
40d8be97 AR |
1435 | // We lack HttpReply which logRequest() uses to log the status code. |
1436 | // TODO: Use HttpReply instead of the "200 Connection established" string. | |
71cae389 | 1437 | al->http.code = 200; |
40d8be97 | 1438 | |
21512911 CT |
1439 | #if USE_AUTH |
1440 | // Preserve authentication info for the ssl-bumped request | |
1441 | if (request->auth_user_request != NULL) | |
1442 | getConn()->auth_user_request = request->auth_user_request; | |
1443 | #endif | |
03f00a11 | 1444 | |
08097970 AR |
1445 | assert(sslBumpNeeded()); |
1446 | getConn()->switchToHttps(request, sslBumpNeed_); | |
3712be3f | 1447 | } |
1448 | ||
1449 | void | |
1450 | ClientHttpRequest::sslBumpStart() | |
1451 | { | |
08097970 AR |
1452 | debugs(85, 5, HERE << "Confirming " << Ssl::bumpMode(sslBumpNeed_) << |
1453 | "-bumped CONNECT tunnel on FD " << getConn()->clientConnection); | |
1454 | getConn()->sslBumpMode = sslBumpNeed_; | |
3712be3f | 1455 | |
08097970 | 1456 | // send an HTTP 200 response to kick client SSL negotiation |
3712be3f | 1457 | // TODO: Unify with tunnel.cc and add a Server(?) header |
b0388924 | 1458 | static const char *const conn_established = "HTTP/1.1 200 Connection established\r\n\r\n"; |
ec41b64c AJ |
1459 | AsyncCall::Pointer call = commCbCall(85, 5, "ClientSocketContext::sslBumpEstablish", |
1460 | CommIoCbPtrFun(&SslBumpEstablish, this)); | |
73c36fd9 | 1461 | Comm::Write(getConn()->clientConnection, conn_established, strlen(conn_established), call, NULL); |
3712be3f | 1462 | } |
1463 | ||
1464 | #endif | |
1465 | ||
0655fa4d | 1466 | bool |
1467 | ClientHttpRequest::gotEnough() const | |
1468 | { | |
86a2f789 | 1469 | /** TODO: should be querying the stream. */ |
7173d5b0 | 1470 | int64_t contentLength = |
06a5ae20 | 1471 | memObject()->getReply()->bodySize(request->method); |
0655fa4d | 1472 | assert(contentLength >= 0); |
1473 | ||
1474 | if (out.offset < contentLength) | |
1475 | return false; | |
1476 | ||
1477 | return true; | |
1478 | } | |
1479 | ||
86a2f789 | 1480 | void |
1481 | ClientHttpRequest::storeEntry(StoreEntry *newEntry) | |
1482 | { | |
1483 | entry_ = newEntry; | |
1484 | } | |
1485 | ||
0976f8db | 1486 | void |
1487 | ClientHttpRequest::loggingEntry(StoreEntry *newEntry) | |
1488 | { | |
1489 | if (loggingEntry_) | |
97b5e68f | 1490 | loggingEntry_->unlock(); |
0976f8db | 1491 | |
1492 | loggingEntry_ = newEntry; | |
1493 | ||
1494 | if (loggingEntry_) | |
3d0ac046 | 1495 | loggingEntry_->lock(); |
0976f8db | 1496 | } |
86a2f789 | 1497 | |
de31d06f | 1498 | /* |
1499 | * doCallouts() - This function controls the order of "callout" | |
1500 | * executions, including non-blocking access control checks, the | |
1501 | * redirector, and ICAP. Previously, these callouts were chained | |
1502 | * together such that "clientAccessCheckDone()" would call | |
1503 | * "clientRedirectStart()" and so on. | |
1504 | * | |
1505 | * The ClientRequestContext (aka calloutContext) class holds certain | |
1506 | * state data for the callout/callback operations. Previously | |
1507 | * ClientHttpRequest would sort of hand off control to ClientRequestContext | |
1508 | * for a short time. ClientRequestContext would then delete itself | |
1509 | * and pass control back to ClientHttpRequest when all callouts | |
1510 | * were finished. | |
1511 | * | |
1512 | * This caused some problems for ICAP because we want to make the | |
1513 | * ICAP callout after checking ACLs, but before checking the no_cache | |
1514 | * list. We can't stuff the ICAP state into the ClientRequestContext | |
1515 | * class because we still need the ICAP state after ClientRequestContext | |
1516 | * goes away. | |
1517 | * | |
1518 | * Note that ClientRequestContext is created before the first call | |
1519 | * to doCallouts(). | |
1520 | * | |
1521 | * If one of the callouts notices that ClientHttpRequest is no | |
1522 | * longer valid, it should call cbdataReferenceDone() so that | |
1523 | * ClientHttpRequest's reference count goes to zero and it will get | |
1524 | * deleted. ClientHttpRequest will then delete ClientRequestContext. | |
1525 | * | |
1526 | * Note that we set the _done flags here before actually starting | |
1527 | * the callout. This is strictly for convenience. | |
1528 | */ | |
1529 | ||
425de4c8 AJ |
1530 | extern tos_t aclMapTOS (acl_tos * head, ACLChecklist * ch); |
1531 | extern nfmark_t aclMapNfmark (acl_nfmark * head, ACLChecklist * ch); | |
057f5854 | 1532 | |
de31d06f | 1533 | void |
1534 | ClientHttpRequest::doCallouts() | |
1535 | { | |
1536 | assert(calloutContext); | |
1537 | ||
6fca33e0 | 1538 | /*Save the original request for logging purposes*/ |
41ebd397 CT |
1539 | if (!calloutContext->http->al->request) |
1540 | calloutContext->http->al->request = HTTPMSGLOCK(request); | |
6fca33e0 | 1541 | |
38450a50 | 1542 | if (!calloutContext->error) { |
87f237a9 | 1543 | // CVE-2009-0801: verify the Host: header is consistent with other known details. |
38450a50 CT |
1544 | if (!calloutContext->host_header_verify_done) { |
1545 | debugs(83, 3, HERE << "Doing calloutContext->hostHeaderVerify()"); | |
1546 | calloutContext->host_header_verify_done = true; | |
1547 | calloutContext->hostHeaderVerify(); | |
1548 | return; | |
1549 | } | |
fe97983f | 1550 | |
38450a50 CT |
1551 | if (!calloutContext->http_access_done) { |
1552 | debugs(83, 3, HERE << "Doing calloutContext->clientAccessCheck()"); | |
1553 | calloutContext->http_access_done = true; | |
1554 | calloutContext->clientAccessCheck(); | |
1555 | return; | |
1556 | } | |
de31d06f | 1557 | |
a83c6ed6 | 1558 | #if USE_ADAPTATION |
38450a50 CT |
1559 | if (!calloutContext->adaptation_acl_check_done) { |
1560 | calloutContext->adaptation_acl_check_done = true; | |
1561 | if (Adaptation::AccessCheck::Start( | |
87f237a9 A |
1562 | Adaptation::methodReqmod, Adaptation::pointPreCache, |
1563 | request, NULL, this)) | |
38450a50 CT |
1564 | return; // will call callback |
1565 | } | |
de31d06f | 1566 | #endif |
1567 | ||
38450a50 CT |
1568 | if (!calloutContext->redirect_done) { |
1569 | calloutContext->redirect_done = true; | |
1570 | assert(calloutContext->redirect_state == REDIRECT_NONE); | |
de31d06f | 1571 | |
38450a50 CT |
1572 | if (Config.Program.redirect) { |
1573 | debugs(83, 3, HERE << "Doing calloutContext->clientRedirectStart()"); | |
1574 | calloutContext->redirect_state = REDIRECT_PENDING; | |
1575 | calloutContext->clientRedirectStart(); | |
1576 | return; | |
1577 | } | |
de31d06f | 1578 | } |
de31d06f | 1579 | |
38450a50 CT |
1580 | if (!calloutContext->adapted_http_access_done) { |
1581 | debugs(83, 3, HERE << "Doing calloutContext->clientAccessCheck2()"); | |
1582 | calloutContext->adapted_http_access_done = true; | |
1583 | calloutContext->clientAccessCheck2(); | |
1584 | return; | |
1585 | } | |
533493da | 1586 | |
38450a50 CT |
1587 | if (!calloutContext->interpreted_req_hdrs) { |
1588 | debugs(83, 3, HERE << "Doing clientInterpretRequestHeaders()"); | |
1589 | calloutContext->interpreted_req_hdrs = 1; | |
1590 | clientInterpretRequestHeaders(this); | |
1591 | } | |
57abaac0 | 1592 | |
38450a50 CT |
1593 | if (!calloutContext->no_cache_done) { |
1594 | calloutContext->no_cache_done = true; | |
de31d06f | 1595 | |
38450a50 CT |
1596 | if (Config.accessList.noCache && request->flags.cachable) { |
1597 | debugs(83, 3, HERE << "Doing calloutContext->checkNoCache()"); | |
1598 | calloutContext->checkNoCache(); | |
1599 | return; | |
1600 | } | |
de31d06f | 1601 | } |
38450a50 | 1602 | } // if !calloutContext->error |
de31d06f | 1603 | |
425de4c8 AJ |
1604 | if (!calloutContext->tosToClientDone) { |
1605 | calloutContext->tosToClientDone = true; | |
73c36fd9 | 1606 | if (getConn() != NULL && Comm::IsConnOpen(getConn()->clientConnection)) { |
c0941a6a | 1607 | ACLFilledChecklist ch(NULL, request, NULL); |
057f5854 | 1608 | ch.src_addr = request->client_addr; |
1609 | ch.my_addr = request->my_addr; | |
425de4c8 | 1610 | tos_t tos = aclMapTOS(Ip::Qos::TheConfig.tosToClient, &ch); |
3712be3f | 1611 | if (tos) |
73c36fd9 | 1612 | Ip::Qos::setSockTos(getConn()->clientConnection, tos); |
425de4c8 AJ |
1613 | } |
1614 | } | |
1615 | ||
1616 | if (!calloutContext->nfmarkToClientDone) { | |
1617 | calloutContext->nfmarkToClientDone = true; | |
73c36fd9 | 1618 | if (getConn() != NULL && Comm::IsConnOpen(getConn()->clientConnection)) { |
425de4c8 AJ |
1619 | ACLFilledChecklist ch(NULL, request, NULL); |
1620 | ch.src_addr = request->client_addr; | |
1621 | ch.my_addr = request->my_addr; | |
1622 | nfmark_t mark = aclMapNfmark(Ip::Qos::TheConfig.nfmarkToClient, &ch); | |
1623 | if (mark) | |
73c36fd9 | 1624 | Ip::Qos::setSockNfmark(getConn()->clientConnection, mark); |
3712be3f | 1625 | } |
057f5854 | 1626 | } |
1627 | ||
d2565320 | 1628 | #if USE_SSL |
7a957a93 AR |
1629 | // We need to check for SslBump even if the calloutContext->error is set |
1630 | // because bumping may require delaying the error until after CONNECT. | |
e0c0d54c CT |
1631 | if (!calloutContext->sslBumpCheckDone) { |
1632 | calloutContext->sslBumpCheckDone = true; | |
1633 | if (calloutContext->sslBumpAccessCheck()) | |
1634 | return; | |
1635 | /* else no ssl bump required*/ | |
1636 | } | |
d2565320 | 1637 | #endif |
e0c0d54c | 1638 | |
2bd84e5f CT |
1639 | if (calloutContext->error) { |
1640 | const char *uri = urlCanonical(request); | |
1641 | StoreEntry *e= storeCreateEntry(uri, uri, request->flags, request->method); | |
1642 | #if USE_SSL | |
08097970 | 1643 | if (sslBumpNeeded()) { |
2bd84e5f CT |
1644 | // set final error but delay sending until we bump |
1645 | Ssl::ServerBump *srvBump = new Ssl::ServerBump(request, e); | |
1646 | errorAppendEntry(e, calloutContext->error); | |
1647 | calloutContext->error = NULL; | |
1648 | getConn()->setServerBump(srvBump); | |
1649 | e->unlock(); | |
87f237a9 | 1650 | } else |
2bd84e5f CT |
1651 | #endif |
1652 | { | |
7a957a93 | 1653 | // send the error to the client now |
2bd84e5f CT |
1654 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->prev->data; |
1655 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1656 | assert (repContext); | |
1657 | repContext->setReplyToStoreEntry(e); | |
1658 | errorAppendEntry(e, calloutContext->error); | |
1659 | calloutContext->error = NULL; | |
1660 | if (calloutContext->readNextRequest) | |
1661 | getConn()->flags.readMore = true; // resume any pipeline reads. | |
1662 | node = (clientStreamNode *)client_stream.tail->data; | |
1663 | clientStreamRead(node, this, node->readBuffer); | |
1664 | e->unlock(); | |
2bd84e5f CT |
1665 | return; |
1666 | } | |
1667 | } | |
1668 | ||
de31d06f | 1669 | cbdataReferenceDone(calloutContext->http); |
1670 | delete calloutContext; | |
1671 | calloutContext = NULL; | |
de31d06f | 1672 | #if HEADERS_LOG |
1673 | ||
1674 | headersLog(0, 1, request->method, request); | |
1675 | #endif | |
1676 | ||
58d7150d | 1677 | debugs(83, 3, HERE << "calling processRequest()"); |
de31d06f | 1678 | processRequest(); |
3ff65596 AR |
1679 | |
1680 | #if ICAP_CLIENT | |
1681 | Adaptation::Icap::History::Pointer ih = request->icapHistory(); | |
1682 | if (ih != NULL) | |
1683 | ih->logType = logType; | |
1684 | #endif | |
de31d06f | 1685 | } |
1686 | ||
32d002cb | 1687 | #if !_USE_INLINE_ |
86a2f789 | 1688 | #include "client_side_request.cci" |
1689 | #endif | |
de31d06f | 1690 | |
a83c6ed6 | 1691 | #if USE_ADAPTATION |
a22e6cd3 AR |
1692 | /// Initiate an asynchronous adaptation transaction which will call us back. |
1693 | void | |
1694 | ClientHttpRequest::startAdaptation(const Adaptation::ServiceGroupPointer &g) | |
3b299123 | 1695 | { |
a22e6cd3 | 1696 | debugs(85, 3, HERE << "adaptation needed for " << this); |
a83c6ed6 AR |
1697 | assert(!virginHeadSource); |
1698 | assert(!adaptedBodySource); | |
a22e6cd3 | 1699 | virginHeadSource = initiateAdaptation( |
4cb2536f | 1700 | new Adaptation::Iterator(request, NULL, g)); |
a83c6ed6 | 1701 | |
e1381638 | 1702 | // we could try to guess whether we can bypass this adaptation |
a22e6cd3 | 1703 | // initiation failure, but it should not really happen |
4299f876 | 1704 | Must(initiated(virginHeadSource)); |
de31d06f | 1705 | } |
1706 | ||
1707 | void | |
3af10ac0 | 1708 | ClientHttpRequest::noteAdaptationAnswer(const Adaptation::Answer &answer) |
de31d06f | 1709 | { |
de31d06f | 1710 | assert(cbdataReferenceValid(this)); // indicates bug |
3af10ac0 AR |
1711 | clearAdaptation(virginHeadSource); |
1712 | assert(!adaptedBodySource); | |
1713 | ||
1714 | switch (answer.kind) { | |
1715 | case Adaptation::Answer::akForward: | |
1716 | handleAdaptedHeader(answer.message); | |
1717 | break; | |
1718 | ||
1719 | case Adaptation::Answer::akBlock: | |
1720 | handleAdaptationBlock(answer); | |
1721 | break; | |
1722 | ||
1723 | case Adaptation::Answer::akError: | |
1724 | handleAdaptationFailure(ERR_DETAIL_CLT_REQMOD_ABORT, !answer.final); | |
1725 | break; | |
1726 | } | |
1727 | } | |
1728 | ||
1729 | void | |
ec4d1a1d | 1730 | ClientHttpRequest::handleAdaptedHeader(HttpMsg *msg) |
3af10ac0 | 1731 | { |
5f8252d2 | 1732 | assert(msg); |
1733 | ||
b044675d | 1734 | if (HttpRequest *new_req = dynamic_cast<HttpRequest*>(msg)) { |
200ac359 | 1735 | /* |
5f8252d2 | 1736 | * Replace the old request with the new request. |
200ac359 | 1737 | */ |
6dd9f4bd | 1738 | HTTPMSGUNLOCK(request); |
1739 | request = HTTPMSGLOCK(new_req); | |
200ac359 | 1740 | /* |
1741 | * Store the new URI for logging | |
1742 | */ | |
1743 | xfree(uri); | |
1744 | uri = xstrdup(urlCanonical(request)); | |
1745 | setLogUri(this, urlCanonicalClean(request)); | |
914b89a2 | 1746 | assert(request->method.id()); |
b044675d | 1747 | } else if (HttpReply *new_rep = dynamic_cast<HttpReply*>(msg)) { |
1748 | debugs(85,3,HERE << "REQMOD reply is HTTP reply"); | |
1749 | ||
5f8252d2 | 1750 | // subscribe to receive reply body |
1751 | if (new_rep->body_pipe != NULL) { | |
a83c6ed6 | 1752 | adaptedBodySource = new_rep->body_pipe; |
d222a56c HN |
1753 | int consumer_ok = adaptedBodySource->setConsumerIfNotLate(this); |
1754 | assert(consumer_ok); | |
5f8252d2 | 1755 | } |
1756 | ||
b044675d | 1757 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->prev->data; |
1758 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1759 | repContext->createStoreEntry(request->method, request->flags); | |
1760 | ||
1761 | EBIT_CLR(storeEntry()->flags, ENTRY_FWD_HDR_WAIT); | |
1762 | request_satisfaction_mode = true; | |
1763 | request_satisfaction_offset = 0; | |
1764 | storeEntry()->replaceHttpReply(new_rep); | |
97ae5196 | 1765 | storeEntry()->timestampsSet(); |
cb4c4288 | 1766 | |
a83c6ed6 | 1767 | if (!adaptedBodySource) // no body |
cb4c4288 | 1768 | storeEntry()->complete(); |
b044675d | 1769 | clientGetMoreData(node, this); |
200ac359 | 1770 | } |
de31d06f | 1771 | |
5f8252d2 | 1772 | // we are done with getting headers (but may be receiving body) |
a83c6ed6 | 1773 | clearAdaptation(virginHeadSource); |
5f8252d2 | 1774 | |
b044675d | 1775 | if (!request_satisfaction_mode) |
1776 | doCallouts(); | |
de31d06f | 1777 | } |
1778 | ||
1779 | void | |
3af10ac0 | 1780 | ClientHttpRequest::handleAdaptationBlock(const Adaptation::Answer &answer) |
de31d06f | 1781 | { |
3af10ac0 AR |
1782 | request->detailError(ERR_ACCESS_DENIED, ERR_DETAIL_REQMOD_BLOCK); |
1783 | AclMatchedName = answer.ruleId.termedBuf(); | |
1784 | assert(calloutContext); | |
1785 | calloutContext->clientAccessCheckDone(ACCESS_DENIED); | |
1786 | AclMatchedName = NULL; | |
de31d06f | 1787 | } |
1788 | ||
0ad2b63b CT |
1789 | void |
1790 | ClientHttpRequest::resumeBodyStorage() | |
1791 | { | |
e83cdc25 | 1792 | if (!adaptedBodySource) |
0ad2b63b CT |
1793 | return; |
1794 | ||
1795 | noteMoreBodyDataAvailable(adaptedBodySource); | |
1796 | } | |
1797 | ||
de31d06f | 1798 | void |
1cf238db | 1799 | ClientHttpRequest::noteMoreBodyDataAvailable(BodyPipe::Pointer) |
de31d06f | 1800 | { |
5f8252d2 | 1801 | assert(request_satisfaction_mode); |
a83c6ed6 | 1802 | assert(adaptedBodySource != NULL); |
5f8252d2 | 1803 | |
0ad2b63b | 1804 | if (size_t contentSize = adaptedBodySource->buf().contentSize()) { |
4dc2b072 | 1805 | const size_t spaceAvailable = storeEntry()->bytesWanted(Range<size_t>(0,contentSize)); |
0ad2b63b CT |
1806 | |
1807 | if (spaceAvailable < contentSize ) { | |
1808 | // No or partial body data consuming | |
1809 | typedef NullaryMemFunT<ClientHttpRequest> Dialer; | |
1810 | AsyncCall::Pointer call = asyncCall(93, 5, "ClientHttpRequest::resumeBodyStorage", | |
1811 | Dialer(this, &ClientHttpRequest::resumeBodyStorage)); | |
1812 | storeEntry()->deferProducer(call); | |
1813 | } | |
1814 | ||
4dc2b072 | 1815 | if (!spaceAvailable) |
0ad2b63b CT |
1816 | return; |
1817 | ||
1818 | if (spaceAvailable < contentSize ) | |
1819 | contentSize = spaceAvailable; | |
1820 | ||
a83c6ed6 | 1821 | BodyPipeCheckout bpc(*adaptedBodySource); |
0ad2b63b | 1822 | const StoreIOBuffer ioBuf(&bpc.buf, request_satisfaction_offset, contentSize); |
5f8252d2 | 1823 | storeEntry()->write(ioBuf); |
0ad2b63b CT |
1824 | // assume StoreEntry::write() writes the entire ioBuf |
1825 | request_satisfaction_offset += ioBuf.length; | |
4ce0e99b | 1826 | bpc.buf.consume(contentSize); |
5f8252d2 | 1827 | bpc.checkIn(); |
1828 | } | |
1829 | ||
a83c6ed6 | 1830 | if (adaptedBodySource->exhausted()) |
5f8252d2 | 1831 | endRequestSatisfaction(); |
1832 | // else wait for more body data | |
de31d06f | 1833 | } |
1834 | ||
1835 | void | |
1cf238db | 1836 | ClientHttpRequest::noteBodyProductionEnded(BodyPipe::Pointer) |
de31d06f | 1837 | { |
a83c6ed6 | 1838 | assert(!virginHeadSource); |
0ad2b63b CT |
1839 | // should we end request satisfaction now? |
1840 | if (adaptedBodySource != NULL && adaptedBodySource->exhausted()) | |
5f8252d2 | 1841 | endRequestSatisfaction(); |
5f8252d2 | 1842 | } |
3b299123 | 1843 | |
5f8252d2 | 1844 | void |
26ac0430 AJ |
1845 | ClientHttpRequest::endRequestSatisfaction() |
1846 | { | |
5f8252d2 | 1847 | debugs(85,4, HERE << this << " ends request satisfaction"); |
1848 | assert(request_satisfaction_mode); | |
a83c6ed6 | 1849 | stopConsumingFrom(adaptedBodySource); |
3b299123 | 1850 | |
5f8252d2 | 1851 | // TODO: anything else needed to end store entry formation correctly? |
1852 | storeEntry()->complete(); | |
1853 | } | |
de31d06f | 1854 | |
5f8252d2 | 1855 | void |
1cf238db | 1856 | ClientHttpRequest::noteBodyProducerAborted(BodyPipe::Pointer) |
5f8252d2 | 1857 | { |
a83c6ed6 AR |
1858 | assert(!virginHeadSource); |
1859 | stopConsumingFrom(adaptedBodySource); | |
eae3a9a6 AR |
1860 | |
1861 | debugs(85,3, HERE << "REQMOD body production failed"); | |
1862 | if (request_satisfaction_mode) { // too late to recover or serve an error | |
1863 | request->detailError(ERR_ICAP_FAILURE, ERR_DETAIL_CLT_REQMOD_RESP_BODY); | |
73c36fd9 | 1864 | const Comm::ConnectionPointer c = getConn()->clientConnection; |
e7cea0ed AJ |
1865 | Must(Comm::IsConnOpen(c)); |
1866 | c->close(); // drastic, but we may be writing a response already | |
eae3a9a6 AR |
1867 | } else { |
1868 | handleAdaptationFailure(ERR_DETAIL_CLT_REQMOD_REQ_BODY); | |
1869 | } | |
5f8252d2 | 1870 | } |
3b299123 | 1871 | |
5f8252d2 | 1872 | void |
64b66b76 | 1873 | ClientHttpRequest::handleAdaptationFailure(int errDetail, bool bypassable) |
5f8252d2 | 1874 | { |
a83c6ed6 | 1875 | debugs(85,3, HERE << "handleAdaptationFailure(" << bypassable << ")"); |
3b299123 | 1876 | |
5f8252d2 | 1877 | const bool usedStore = storeEntry() && !storeEntry()->isEmpty(); |
1878 | const bool usedPipe = request->body_pipe != NULL && | |
26ac0430 | 1879 | request->body_pipe->consumedSize() > 0; |
3b299123 | 1880 | |
9d4d7c5e | 1881 | if (bypassable && !usedStore && !usedPipe) { |
1882 | debugs(85,3, HERE << "ICAP REQMOD callout failed, bypassing: " << calloutContext); | |
5f8252d2 | 1883 | if (calloutContext) |
1884 | doCallouts(); | |
1885 | return; | |
1886 | } | |
3b299123 | 1887 | |
5f8252d2 | 1888 | debugs(85,3, HERE << "ICAP REQMOD callout failed, responding with error"); |
3b299123 | 1889 | |
5f8252d2 | 1890 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->prev->data; |
1891 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1892 | assert(repContext); | |
de31d06f | 1893 | |
26ac0430 | 1894 | // The original author of the code also wanted to pass an errno to |
5f8252d2 | 1895 | // setReplyToError, but it seems unlikely that the errno reflects the |
1896 | // true cause of the error at this point, so I did not pass it. | |
2bd84e5f CT |
1897 | if (calloutContext) { |
1898 | Ip::Address noAddr; | |
1899 | noAddr.SetNoAddr(); | |
1900 | ConnStateData * c = getConn(); | |
1901 | calloutContext->error = clientBuildError(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR, | |
87f237a9 A |
1902 | NULL, |
1903 | c != NULL ? c->clientConnection->remote : noAddr, | |
1904 | request | |
1905 | ); | |
79fc6915 | 1906 | #if USE_AUTH |
87f237a9 | 1907 | calloutContext->error->auth_user_request = |
2bd84e5f | 1908 | c != NULL && c->auth_user_request != NULL ? c->auth_user_request : request->auth_user_request; |
79fc6915 | 1909 | #endif |
129fe2a1 | 1910 | calloutContext->error->detailError(errDetail); |
2bd84e5f CT |
1911 | calloutContext->readNextRequest = true; |
1912 | c->expectNoForwarding(); | |
1913 | doCallouts(); | |
1914 | } | |
1915 | //else if(calloutContext == NULL) is it possible? | |
de31d06f | 1916 | } |
1917 | ||
1918 | #endif |