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edce4d98 | 1 | |
2 | /* | |
ae45c4de | 3 | * DEBUG: section 85 Client-side Request Routines |
4 | * AUTHOR: Robert Collins (Originally Duane Wessels in client_side.c) | |
26ac0430 | 5 | * |
edce4d98 | 6 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
7 | * ---------------------------------------------------------- | |
0a9297f6 | 8 | * |
9 | * Squid is the result of efforts by numerous individuals from | |
10 | * the Internet community; see the CONTRIBUTORS file for full | |
11 | * details. Many organizations have provided support for Squid's | |
12 | * development; see the SPONSORS file for full details. Squid is | |
13 | * Copyrighted (C) 2001 by the Regents of the University of | |
14 | * California; see the COPYRIGHT file for full details. Squid | |
15 | * incorporates software developed and/or copyrighted by other | |
16 | * sources; see the CREDITS file for full details. | |
17 | * | |
18 | * This program is free software; you can redistribute it and/or modify | |
19 | * it under the terms of the GNU General Public License as published by | |
20 | * the Free Software Foundation; either version 2 of the License, or | |
21 | * (at your option) any later version. | |
22 | * | |
23 | * This program is distributed in the hope that it will be useful, | |
24 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
26 | * GNU General Public License for more details. | |
27 | * | |
28 | * You should have received a copy of the GNU General Public License | |
29 | * along with this program; if not, write to the Free Software | |
30 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. | |
31 | * | |
edce4d98 | 32 | */ |
33 | ||
69660be0 | 34 | /* |
35 | * General logic of request processing: | |
26ac0430 | 36 | * |
69660be0 | 37 | * We run a series of tests to determine if access will be permitted, and to do |
38 | * any redirection. Then we call into the result clientStream to retrieve data. | |
39 | * From that point on it's up to reply management. | |
edce4d98 | 40 | */ |
41 | ||
582c2af2 | 42 | #include "squid.h" |
c0941a6a AR |
43 | #include "acl/FilledChecklist.h" |
44 | #include "acl/Gadgets.h" | |
65d448bc | 45 | #include "anyp/PortCfg.h" |
582c2af2 | 46 | #include "ClientRequestContext.h" |
27bc2077 AJ |
47 | #include "client_side.h" |
48 | #include "client_side_reply.h" | |
49 | #include "client_side_request.h" | |
582c2af2 | 50 | #include "clientStream.h" |
5c336a3b | 51 | #include "comm/Connection.h" |
ec41b64c | 52 | #include "comm/Write.h" |
27bc2077 | 53 | #include "compat/inet_pton.h" |
582c2af2 | 54 | #include "err_detail_type.h" |
2bd84e5f | 55 | #include "errorpage.h" |
c4ad1349 | 56 | #include "fd.h" |
27bc2077 | 57 | #include "fde.h" |
31971e6a | 58 | #include "format/Token.h" |
d05c079c | 59 | #include "gopher.h" |
e166785a | 60 | #include "helper.h" |
5c0c642e | 61 | #include "http.h" |
ce394734 | 62 | #include "HttpHdrCc.h" |
27bc2077 AJ |
63 | #include "HttpReply.h" |
64 | #include "HttpRequest.h" | |
582c2af2 | 65 | #include "ipcache.h" |
425de4c8 | 66 | #include "ip/QosConfig.h" |
1c7ae5ff | 67 | #include "log/access_log.h" |
27bc2077 | 68 | #include "MemObject.h" |
8a01b99e | 69 | #include "Parsing.h" |
582c2af2 | 70 | #include "profiler/Profiler.h" |
e166785a | 71 | #include "redirect.h" |
4d5904f7 | 72 | #include "SquidConfig.h" |
27bc2077 | 73 | #include "SquidTime.h" |
582c2af2 | 74 | #include "Store.h" |
28204b3b | 75 | #include "StrList.h" |
685c6ff5 | 76 | #include "tools.h" |
b1bd952a | 77 | #include "URL.h" |
27bc2077 | 78 | #include "wordlist.h" |
582c2af2 FC |
79 | #if USE_AUTH |
80 | #include "auth/UserRequest.h" | |
81 | #endif | |
82 | #if USE_ADAPTATION | |
83 | #include "adaptation/AccessCheck.h" | |
84 | #include "adaptation/Answer.h" | |
85 | #include "adaptation/Iterator.h" | |
86 | #include "adaptation/Service.h" | |
87 | #if ICAP_CLIENT | |
88 | #include "adaptation/icap/History.h" | |
89 | #endif | |
90 | #endif | |
4db984be CT |
91 | #if USE_SSL |
92 | #include "ssl/support.h" | |
2bd84e5f | 93 | #include "ssl/ServerBump.h" |
4db984be | 94 | #endif |
3ff65596 | 95 | |
edce4d98 | 96 | #if LINGERING_CLOSE |
97 | #define comm_close comm_lingering_close | |
98 | #endif | |
99 | ||
100 | static const char *const crlf = "\r\n"; | |
101 | ||
609c620a | 102 | #if FOLLOW_X_FORWARDED_FOR |
2efeb0b7 | 103 | static void clientFollowXForwardedForCheck(allow_t answer, void *data); |
609c620a | 104 | #endif /* FOLLOW_X_FORWARDED_FOR */ |
3d674977 | 105 | |
82afb125 | 106 | ErrorState *clientBuildError(err_type, http_status, char const *url, Ip::Address &, HttpRequest *); |
2bd84e5f | 107 | |
8e2745f4 | 108 | CBDATA_CLASS_INIT(ClientRequestContext); |
109 | ||
110 | void * | |
111 | ClientRequestContext::operator new (size_t size) | |
112 | { | |
113 | assert (size == sizeof(ClientRequestContext)); | |
114 | CBDATA_INIT_TYPE(ClientRequestContext); | |
115 | ClientRequestContext *result = cbdataAlloc(ClientRequestContext); | |
aa625860 | 116 | return result; |
8e2745f4 | 117 | } |
62e76326 | 118 | |
8e2745f4 | 119 | void |
120 | ClientRequestContext::operator delete (void *address) | |
121 | { | |
122 | ClientRequestContext *t = static_cast<ClientRequestContext *>(address); | |
aa625860 | 123 | cbdataFree(t); |
8e2745f4 | 124 | } |
125 | ||
edce4d98 | 126 | /* Local functions */ |
edce4d98 | 127 | /* other */ |
2efeb0b7 | 128 | static void clientAccessCheckDoneWrapper(allow_t, void *); |
e0c0d54c | 129 | #if USE_SSL |
2efeb0b7 | 130 | static void sslBumpAccessCheckDoneWrapper(allow_t, void *); |
e0c0d54c | 131 | #endif |
59a1efb2 | 132 | static int clientHierarchical(ClientHttpRequest * http); |
133 | static void clientInterpretRequestHeaders(ClientHttpRequest * http); | |
e166785a | 134 | static HLPCB clientRedirectDoneWrapper; |
2efeb0b7 | 135 | static void checkNoCacheDoneWrapper(allow_t, void *); |
82afb125 FC |
136 | SQUIDCEXTERN CSR clientGetMoreData; |
137 | SQUIDCEXTERN CSS clientReplyStatus; | |
138 | SQUIDCEXTERN CSD clientReplyDetach; | |
528b2c61 | 139 | static void checkFailureRatio(err_type, hier_code); |
edce4d98 | 140 | |
8e2745f4 | 141 | ClientRequestContext::~ClientRequestContext() |
142 | { | |
de31d06f | 143 | /* |
a546b04b | 144 | * Release our "lock" on our parent, ClientHttpRequest, if we |
145 | * still have one | |
de31d06f | 146 | */ |
a546b04b | 147 | |
148 | if (http) | |
149 | cbdataReferenceDone(http); | |
62e76326 | 150 | |
2bd84e5f | 151 | delete error; |
5f8252d2 | 152 | debugs(85,3, HERE << this << " ClientRequestContext destructed"); |
8e2745f4 | 153 | } |
154 | ||
2bd84e5f | 155 | ClientRequestContext::ClientRequestContext(ClientHttpRequest *anHttp) : http(cbdataReference(anHttp)), acl_checklist (NULL), redirect_state (REDIRECT_NONE), error(NULL), readNextRequest(false) |
edce4d98 | 156 | { |
57abaac0 | 157 | http_access_done = false; |
158 | redirect_done = false; | |
159 | no_cache_done = false; | |
160 | interpreted_req_hdrs = false; | |
e0c0d54c CT |
161 | #if USE_SSL |
162 | sslBumpCheckDone = false; | |
163 | #endif | |
0b86805b | 164 | debugs(85,3, HERE << this << " ClientRequestContext constructed"); |
edce4d98 | 165 | } |
166 | ||
528b2c61 | 167 | CBDATA_CLASS_INIT(ClientHttpRequest); |
8e2745f4 | 168 | |
528b2c61 | 169 | void * |
170 | ClientHttpRequest::operator new (size_t size) | |
171 | { | |
172 | assert (size == sizeof (ClientHttpRequest)); | |
173 | CBDATA_INIT_TYPE(ClientHttpRequest); | |
174 | ClientHttpRequest *result = cbdataAlloc(ClientHttpRequest); | |
aa625860 | 175 | return result; |
528b2c61 | 176 | } |
177 | ||
62e76326 | 178 | void |
528b2c61 | 179 | ClientHttpRequest::operator delete (void *address) |
180 | { | |
aa625860 | 181 | ClientHttpRequest *t = static_cast<ClientHttpRequest *>(address); |
182 | cbdataFree(t); | |
528b2c61 | 183 | } |
184 | ||
26ac0430 | 185 | ClientHttpRequest::ClientHttpRequest(ConnStateData * aConn) : |
a83c6ed6 | 186 | #if USE_ADAPTATION |
26ac0430 | 187 | AsyncJob("ClientHttpRequest"), |
1cf238db | 188 | #endif |
26ac0430 | 189 | loggingEntry_(NULL) |
528b2c61 | 190 | { |
1cf238db | 191 | start_time = current_time; |
a0355e95 | 192 | setConn(aConn); |
41ebd397 CT |
193 | al = new AccessLogEntry; |
194 | al->tcpClient = clientConnection = aConn->clientConnection; | |
f4698e0b CT |
195 | #if USE_SSL |
196 | if (aConn->clientConnection != NULL && aConn->clientConnection->isOpen()) { | |
197 | if (SSL *ssl = fd_table[aConn->clientConnection->fd].ssl) | |
198 | al->cache.sslClientCert.reset(SSL_get_peer_certificate(ssl)); | |
199 | } | |
200 | #endif | |
a0355e95 | 201 | dlinkAdd(this, &active, &ClientActiveRequests); |
a83c6ed6 | 202 | #if USE_ADAPTATION |
b044675d | 203 | request_satisfaction_mode = false; |
204 | #endif | |
e0c0d54c | 205 | #if USE_SSL |
08097970 | 206 | sslBumpNeed_ = Ssl::bumpEnd; |
e0c0d54c | 207 | #endif |
528b2c61 | 208 | } |
209 | ||
0655fa4d | 210 | /* |
211 | * returns true if client specified that the object must come from the cache | |
212 | * without contacting origin server | |
213 | */ | |
214 | bool | |
215 | ClientHttpRequest::onlyIfCached()const | |
216 | { | |
217 | assert(request); | |
218 | return request->cache_control && | |
4ce6e3b5 | 219 | request->cache_control->onlyIfCached(); |
0655fa4d | 220 | } |
221 | ||
77aacca5 | 222 | /** |
528b2c61 | 223 | * This function is designed to serve a fairly specific purpose. |
224 | * Occasionally our vBNS-connected caches can talk to each other, but not | |
225 | * the rest of the world. Here we try to detect frequent failures which | |
226 | * make the cache unusable (e.g. DNS lookup and connect() failures). If | |
227 | * the failure:success ratio goes above 1.0 then we go into "hit only" | |
228 | * mode where we only return UDP_HIT or UDP_MISS_NOFETCH. Neighbors | |
229 | * will only fetch HITs from us if they are using the ICP protocol. We | |
230 | * stay in this mode for 5 minutes. | |
26ac0430 | 231 | * |
528b2c61 | 232 | * Duane W., Sept 16, 1996 |
233 | */ | |
528b2c61 | 234 | static void |
235 | checkFailureRatio(err_type etype, hier_code hcode) | |
236 | { | |
77aacca5 AJ |
237 | // Can be set at compile time with -D compiler flag |
238 | #ifndef FAILURE_MODE_TIME | |
239 | #define FAILURE_MODE_TIME 300 | |
240 | #endif | |
241 | ||
8d74a311 AJ |
242 | if (hcode == HIER_NONE) |
243 | return; | |
244 | ||
245 | // don't bother when ICP is disabled. | |
246 | if (Config.Port.icp <= 0) | |
247 | return; | |
248 | ||
528b2c61 | 249 | static double magic_factor = 100.0; |
250 | double n_good; | |
251 | double n_bad; | |
62e76326 | 252 | |
528b2c61 | 253 | n_good = magic_factor / (1.0 + request_failure_ratio); |
62e76326 | 254 | |
528b2c61 | 255 | n_bad = magic_factor - n_good; |
62e76326 | 256 | |
528b2c61 | 257 | switch (etype) { |
62e76326 | 258 | |
528b2c61 | 259 | case ERR_DNS_FAIL: |
62e76326 | 260 | |
528b2c61 | 261 | case ERR_CONNECT_FAIL: |
3712be3f | 262 | case ERR_SECURE_CONNECT_FAIL: |
62e76326 | 263 | |
528b2c61 | 264 | case ERR_READ_ERROR: |
5086523e | 265 | ++n_bad; |
62e76326 | 266 | break; |
267 | ||
528b2c61 | 268 | default: |
5086523e | 269 | ++n_good; |
528b2c61 | 270 | } |
62e76326 | 271 | |
528b2c61 | 272 | request_failure_ratio = n_bad / n_good; |
62e76326 | 273 | |
528b2c61 | 274 | if (hit_only_mode_until > squid_curtime) |
62e76326 | 275 | return; |
276 | ||
528b2c61 | 277 | if (request_failure_ratio < 1.0) |
62e76326 | 278 | return; |
279 | ||
77aacca5 | 280 | debugs(33, DBG_CRITICAL, "WARNING: Failure Ratio at "<< std::setw(4)<< |
bf8fe701 | 281 | std::setprecision(3) << request_failure_ratio); |
62e76326 | 282 | |
8d74a311 | 283 | debugs(33, DBG_CRITICAL, "WARNING: ICP going into HIT-only mode for " << |
bf8fe701 | 284 | FAILURE_MODE_TIME / 60 << " minutes..."); |
62e76326 | 285 | |
528b2c61 | 286 | hit_only_mode_until = squid_curtime + FAILURE_MODE_TIME; |
62e76326 | 287 | |
528b2c61 | 288 | request_failure_ratio = 0.8; /* reset to something less than 1.0 */ |
289 | } | |
290 | ||
291 | ClientHttpRequest::~ClientHttpRequest() | |
292 | { | |
bf8fe701 | 293 | debugs(33, 3, "httpRequestFree: " << uri); |
72bdee4c | 294 | PROF_start(httpRequestFree); |
62e76326 | 295 | |
5f8252d2 | 296 | // Even though freeResources() below may destroy the request, |
297 | // we no longer set request->body_pipe to NULL here | |
298 | // because we did not initiate that pipe (ConnStateData did) | |
62e76326 | 299 | |
528b2c61 | 300 | /* the ICP check here was erroneous |
26ac0430 | 301 | * - StoreEntry::releaseRequest was always called if entry was valid |
528b2c61 | 302 | */ |
303 | assert(logType < LOG_TYPE_MAX); | |
9ce7856a | 304 | |
528b2c61 | 305 | logRequest(); |
9ce7856a | 306 | |
0976f8db | 307 | loggingEntry(NULL); |
308 | ||
528b2c61 | 309 | if (request) |
41ebd397 | 310 | checkFailureRatio(request->errType, al->hier.code); |
62e76326 | 311 | |
528b2c61 | 312 | freeResources(); |
62e76326 | 313 | |
a83c6ed6 AR |
314 | #if USE_ADAPTATION |
315 | announceInitiatorAbort(virginHeadSource); | |
9d4d7c5e | 316 | |
a83c6ed6 AR |
317 | if (adaptedBodySource != NULL) |
318 | stopConsumingFrom(adaptedBodySource); | |
de31d06f | 319 | #endif |
9ce7856a | 320 | |
de31d06f | 321 | if (calloutContext) |
322 | delete calloutContext; | |
323 | ||
be364179 AJ |
324 | clientConnection = NULL; |
325 | ||
26ac0430 AJ |
326 | if (conn_) |
327 | cbdataReferenceDone(conn_); | |
1cf238db | 328 | |
528b2c61 | 329 | /* moving to the next connection is handled by the context free */ |
330 | dlinkDelete(&active, &ClientActiveRequests); | |
9ce7856a | 331 | |
72bdee4c | 332 | PROF_stop(httpRequestFree); |
528b2c61 | 333 | } |
62e76326 | 334 | |
11992b6f AJ |
335 | /** |
336 | * Create a request and kick it off | |
337 | * | |
338 | * \retval 0 success | |
339 | * \retval -1 failure | |
340 | * | |
69660be0 | 341 | * TODO: Pass in the buffers to be used in the inital Read request, as they are |
342 | * determined by the user | |
edce4d98 | 343 | */ |
11992b6f | 344 | int |
60745f24 | 345 | clientBeginRequest(const HttpRequestMethod& method, char const *url, CSCB * streamcallback, |
0655fa4d | 346 | CSD * streamdetach, ClientStreamData streamdata, HttpHeader const *header, |
62e76326 | 347 | char *tailbuf, size_t taillen) |
edce4d98 | 348 | { |
349 | size_t url_sz; | |
a0355e95 | 350 | ClientHttpRequest *http = new ClientHttpRequest(NULL); |
190154cf | 351 | HttpRequest *request; |
528b2c61 | 352 | StoreIOBuffer tempBuffer; |
1cf238db | 353 | http->start_time = current_time; |
edce4d98 | 354 | /* this is only used to adjust the connection offset in client_side.c */ |
355 | http->req_sz = 0; | |
c8be6d7b | 356 | tempBuffer.length = taillen; |
357 | tempBuffer.data = tailbuf; | |
edce4d98 | 358 | /* client stream setup */ |
359 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, | |
0655fa4d | 360 | clientReplyStatus, new clientReplyContext(http), streamcallback, |
62e76326 | 361 | streamdetach, streamdata, tempBuffer); |
edce4d98 | 362 | /* make it visible in the 'current acctive requests list' */ |
edce4d98 | 363 | /* Set flags */ |
a46d2c0e | 364 | /* internal requests only makes sense in an |
365 | * accelerator today. TODO: accept flags ? */ | |
366 | http->flags.accel = 1; | |
edce4d98 | 367 | /* allow size for url rewriting */ |
368 | url_sz = strlen(url) + Config.appendDomainLen + 5; | |
e6ccf245 | 369 | http->uri = (char *)xcalloc(url_sz, 1); |
edce4d98 | 370 | strcpy(http->uri, url); |
371 | ||
c21ad0f5 | 372 | if ((request = HttpRequest::CreateFromUrlAndMethod(http->uri, method)) == NULL) { |
bf8fe701 | 373 | debugs(85, 5, "Invalid URL: " << http->uri); |
62e76326 | 374 | return -1; |
edce4d98 | 375 | } |
62e76326 | 376 | |
69660be0 | 377 | /* |
11992b6f | 378 | * now update the headers in request with our supplied headers. urlParse |
69660be0 | 379 | * should return a blank header set, but we use Update to be sure of |
380 | * correctness. | |
edce4d98 | 381 | */ |
382 | if (header) | |
a9925b40 | 383 | request->header.update(header, NULL); |
62e76326 | 384 | |
edce4d98 | 385 | http->log_uri = xstrdup(urlCanonicalClean(request)); |
62e76326 | 386 | |
edce4d98 | 387 | /* http struct now ready */ |
388 | ||
69660be0 | 389 | /* |
390 | * build new header list *? TODO | |
edce4d98 | 391 | */ |
45e5102d | 392 | request->flags.accelerated = http->flags.accel; |
62e76326 | 393 | |
450fe1cb | 394 | request->flags.internalClient = 1; |
a46d2c0e | 395 | |
396 | /* this is an internally created | |
397 | * request, not subject to acceleration | |
398 | * target overrides */ | |
69660be0 | 399 | /* |
400 | * FIXME? Do we want to detect and handle internal requests of internal | |
401 | * objects ? | |
402 | */ | |
edce4d98 | 403 | |
404 | /* Internally created requests cannot have bodies today */ | |
405 | request->content_length = 0; | |
62e76326 | 406 | |
cc192b50 | 407 | request->client_addr.SetNoAddr(); |
62e76326 | 408 | |
3d674977 AJ |
409 | #if FOLLOW_X_FORWARDED_FOR |
410 | request->indirect_client_addr.SetNoAddr(); | |
411 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
26ac0430 | 412 | |
cc192b50 | 413 | request->my_addr.SetNoAddr(); /* undefined for internal requests */ |
62e76326 | 414 | |
cc192b50 | 415 | request->my_addr.SetPort(0); |
62e76326 | 416 | |
3872be7c AJ |
417 | /* Our version is HTTP/1.1 */ |
418 | HttpVersion http_ver(1,1); | |
edce4d98 | 419 | request->http_ver = http_ver; |
62e76326 | 420 | |
6dd9f4bd | 421 | http->request = HTTPMSGLOCK(request); |
edce4d98 | 422 | |
423 | /* optional - skip the access check ? */ | |
de31d06f | 424 | http->calloutContext = new ClientRequestContext(http); |
425 | ||
57abaac0 | 426 | http->calloutContext->http_access_done = false; |
de31d06f | 427 | |
57abaac0 | 428 | http->calloutContext->redirect_done = true; |
de31d06f | 429 | |
57abaac0 | 430 | http->calloutContext->no_cache_done = true; |
de31d06f | 431 | |
432 | http->doCallouts(); | |
62e76326 | 433 | |
edce4d98 | 434 | return 0; |
435 | } | |
436 | ||
de31d06f | 437 | bool |
438 | ClientRequestContext::httpStateIsValid() | |
439 | { | |
440 | ClientHttpRequest *http_ = http; | |
441 | ||
442 | if (cbdataReferenceValid(http_)) | |
443 | return true; | |
444 | ||
445 | http = NULL; | |
446 | ||
447 | cbdataReferenceDone(http_); | |
448 | ||
449 | return false; | |
450 | } | |
451 | ||
3d674977 AJ |
452 | #if FOLLOW_X_FORWARDED_FOR |
453 | /** | |
a9044668 | 454 | * clientFollowXForwardedForCheck() checks the content of X-Forwarded-For: |
3d674977 AJ |
455 | * against the followXFF ACL, or cleans up and passes control to |
456 | * clientAccessCheck(). | |
d096ace1 AJ |
457 | * |
458 | * The trust model here is a little ambiguous. So to clarify the logic: | |
459 | * - we may always use the direct client address as the client IP. | |
a9044668 | 460 | * - these trust tests merey tell whether we trust given IP enough to believe the |
d096ace1 AJ |
461 | * IP string which it appended to the X-Forwarded-For: header. |
462 | * - if at any point we don't trust what an IP adds we stop looking. | |
463 | * - at that point the current contents of indirect_client_addr are the value set | |
464 | * by the last previously trusted IP. | |
465 | * ++ indirect_client_addr contains the remote direct client from the trusted peers viewpoint. | |
3d674977 | 466 | */ |
3d674977 | 467 | static void |
2efeb0b7 | 468 | clientFollowXForwardedForCheck(allow_t answer, void *data) |
3d674977 AJ |
469 | { |
470 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; | |
3d674977 AJ |
471 | |
472 | if (!calloutContext->httpStateIsValid()) | |
473 | return; | |
474 | ||
d096ace1 AJ |
475 | ClientHttpRequest *http = calloutContext->http; |
476 | HttpRequest *request = http->request; | |
477 | ||
3d674977 AJ |
478 | /* |
479 | * answer should be be ACCESS_ALLOWED or ACCESS_DENIED if we are | |
480 | * called as a result of ACL checks, or -1 if we are called when | |
481 | * there's nothing left to do. | |
482 | */ | |
483 | if (answer == ACCESS_ALLOWED && | |
26ac0430 | 484 | request->x_forwarded_for_iterator.size () != 0) { |
d096ace1 | 485 | |
3d674977 | 486 | /* |
d096ace1 AJ |
487 | * Remove the last comma-delimited element from the |
488 | * x_forwarded_for_iterator and use it to repeat the cycle. | |
489 | */ | |
3d674977 AJ |
490 | const char *p; |
491 | const char *asciiaddr; | |
492 | int l; | |
b7ac5457 | 493 | Ip::Address addr; |
bb790702 | 494 | p = request->x_forwarded_for_iterator.termedBuf(); |
3d674977 AJ |
495 | l = request->x_forwarded_for_iterator.size(); |
496 | ||
497 | /* | |
498 | * XXX x_forwarded_for_iterator should really be a list of | |
499 | * IP addresses, but it's a String instead. We have to | |
500 | * walk backwards through the String, biting off the last | |
501 | * comma-delimited part each time. As long as the data is in | |
502 | * a String, we should probably implement and use a variant of | |
503 | * strListGetItem() that walks backwards instead of forwards | |
504 | * through a comma-separated list. But we don't even do that; | |
505 | * we just do the work in-line here. | |
506 | */ | |
507 | /* skip trailing space and commas */ | |
508 | while (l > 0 && (p[l-1] == ',' || xisspace(p[l-1]))) | |
5e263176 | 509 | --l; |
3d674977 AJ |
510 | request->x_forwarded_for_iterator.cut(l); |
511 | /* look for start of last item in list */ | |
512 | while (l > 0 && ! (p[l-1] == ',' || xisspace(p[l-1]))) | |
5e263176 | 513 | --l; |
3d674977 | 514 | asciiaddr = p+l; |
fafd0efa | 515 | if ((addr = asciiaddr)) { |
3d674977 AJ |
516 | request->indirect_client_addr = addr; |
517 | request->x_forwarded_for_iterator.cut(l); | |
d096ace1 AJ |
518 | calloutContext->acl_checklist = clientAclChecklistCreate(Config.accessList.followXFF, http); |
519 | if (!Config.onoff.acl_uses_indirect_client) { | |
520 | /* override the default src_addr tested if we have to go deeper than one level into XFF */ | |
521 | Filled(calloutContext->acl_checklist)->src_addr = request->indirect_client_addr; | |
3d674977 | 522 | } |
d096ace1 | 523 | calloutContext->acl_checklist->nonBlockingCheck(clientFollowXForwardedForCheck, data); |
3d674977 AJ |
524 | return; |
525 | } | |
526 | } /*if (answer == ACCESS_ALLOWED && | |
527 | request->x_forwarded_for_iterator.size () != 0)*/ | |
528 | ||
529 | /* clean up, and pass control to clientAccessCheck */ | |
26ac0430 | 530 | if (Config.onoff.log_uses_indirect_client) { |
3d674977 AJ |
531 | /* |
532 | * Ensure that the access log shows the indirect client | |
533 | * instead of the direct client. | |
534 | */ | |
535 | ConnStateData *conn = http->getConn(); | |
536 | conn->log_addr = request->indirect_client_addr; | |
537 | } | |
538 | request->x_forwarded_for_iterator.clean(); | |
f1a1f20a | 539 | request->flags.done_follow_x_forwarded_for=true; |
3d674977 | 540 | |
d096ace1 AJ |
541 | if (answer != ACCESS_ALLOWED && answer != ACCESS_DENIED) { |
542 | debugs(28, DBG_CRITICAL, "ERROR: Processing X-Forwarded-For. Stopping at IP address: " << request->indirect_client_addr ); | |
493d3865 AJ |
543 | } |
544 | ||
545 | /* process actual access ACL as normal. */ | |
546 | calloutContext->clientAccessCheck(); | |
3d674977 AJ |
547 | } |
548 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
549 | ||
fe97983f AJ |
550 | static void |
551 | hostHeaderIpVerifyWrapper(const ipcache_addrs* ia, const DnsLookupDetails &dns, void *data) | |
552 | { | |
553 | ClientRequestContext *c = static_cast<ClientRequestContext*>(data); | |
554 | c->hostHeaderIpVerify(ia, dns); | |
555 | } | |
556 | ||
557 | void | |
558 | ClientRequestContext::hostHeaderIpVerify(const ipcache_addrs* ia, const DnsLookupDetails &dns) | |
559 | { | |
560 | Comm::ConnectionPointer clientConn = http->getConn()->clientConnection; | |
561 | ||
562 | // note the DNS details for the transaction stats. | |
563 | http->request->recordLookup(dns); | |
564 | ||
565 | if (ia != NULL && ia->count > 0) { | |
566 | // Is the NAT destination IP in DNS? | |
5086523e | 567 | for (int i = 0; i < ia->count; ++i) { |
fe97983f AJ |
568 | if (clientConn->local.matchIPAddr(ia->in_addrs[i]) == 0) { |
569 | debugs(85, 3, HERE << "validate IP " << clientConn->local << " possible from Host:"); | |
45e5102d | 570 | http->request->flags.hostVerified = 1; |
fe97983f AJ |
571 | http->doCallouts(); |
572 | return; | |
573 | } | |
574 | debugs(85, 3, HERE << "validate IP " << clientConn->local << " non-match from Host: IP " << ia->in_addrs[i]); | |
575 | } | |
576 | } | |
577 | debugs(85, 3, HERE << "FAIL: validate IP " << clientConn->local << " possible from Host:"); | |
05b28f84 | 578 | hostHeaderVerifyFailed("local IP", "any domain IP"); |
fe97983f AJ |
579 | } |
580 | ||
581 | void | |
05b28f84 | 582 | ClientRequestContext::hostHeaderVerifyFailed(const char *A, const char *B) |
fe97983f | 583 | { |
2962f8b8 AJ |
584 | // IP address validation for Host: failed. Admin wants to ignore them. |
585 | // NP: we do not yet handle CONNECT tunnels well, so ignore for them | |
c2a7cefd | 586 | if (!Config.onoff.hostStrictVerify && http->request->method != Http::METHOD_CONNECT) { |
2962f8b8 AJ |
587 | debugs(85, 3, "SECURITY ALERT: Host header forgery detected on " << http->getConn()->clientConnection << |
588 | " (" << A << " does not match " << B << ") on URL: " << urlCanonical(http->request)); | |
589 | ||
450fe1cb | 590 | // NP: it is tempting to use 'flags.noCache' but that is all about READing cache data. |
2962f8b8 | 591 | // The problems here are about WRITE for new cache content, which means flags.cachable |
45e5102d | 592 | http->request->flags.cachable = 0; // MUST NOT cache (for now) |
2962f8b8 | 593 | // XXX: when we have updated the cache key to base on raw-IP + URI this cacheable limit can go. |
45e5102d | 594 | http->request->flags.hierarchical = 0; // MUST NOT pass to peers (for now) |
2962f8b8 | 595 | // XXX: when we have sorted out the best way to relay requests properly to peers this hierarchical limit can go. |
567fe088 | 596 | http->doCallouts(); |
2962f8b8 AJ |
597 | return; |
598 | } | |
599 | ||
8f489ad7 AJ |
600 | debugs(85, DBG_IMPORTANT, "SECURITY ALERT: Host header forgery detected on " << |
601 | http->getConn()->clientConnection << " (" << A << " does not match " << B << ")"); | |
602 | debugs(85, DBG_IMPORTANT, "SECURITY ALERT: By user agent: " << http->request->header.getStr(HDR_USER_AGENT)); | |
603 | debugs(85, DBG_IMPORTANT, "SECURITY ALERT: on URL: " << urlCanonical(http->request)); | |
fe97983f AJ |
604 | |
605 | // IP address validation for Host: failed. reject the connection. | |
606 | clientStreamNode *node = (clientStreamNode *)http->client_stream.tail->prev->data; | |
607 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
608 | assert (repContext); | |
2962f8b8 | 609 | repContext->setReplyToError(ERR_CONFLICT_HOST, HTTP_CONFLICT, |
fe97983f AJ |
610 | http->request->method, NULL, |
611 | http->getConn()->clientConnection->remote, | |
612 | http->request, | |
613 | NULL, | |
614 | #if USE_AUTH | |
615 | http->getConn() != NULL && http->getConn()->auth_user_request != NULL ? | |
616 | http->getConn()->auth_user_request : http->request->auth_user_request); | |
617 | #else | |
618 | NULL); | |
619 | #endif | |
620 | node = (clientStreamNode *)http->client_stream.tail->data; | |
621 | clientStreamRead(node, http, node->readBuffer); | |
622 | } | |
623 | ||
624 | void | |
625 | ClientRequestContext::hostHeaderVerify() | |
626 | { | |
627 | // Require a Host: header. | |
628 | const char *host = http->request->header.getStr(HDR_HOST); | |
fe97983f AJ |
629 | |
630 | if (!host) { | |
631 | // TODO: dump out the HTTP/1.1 error about missing host header. | |
632 | // otherwise this is fine, can't forge a header value when its not even set. | |
633 | debugs(85, 3, HERE << "validate skipped with no Host: header present."); | |
634 | http->doCallouts(); | |
635 | return; | |
636 | } | |
637 | ||
45e5102d | 638 | if (http->request->flags.internal) { |
8f489ad7 AJ |
639 | // TODO: kill this when URL handling allows partial URLs out of accel mode |
640 | // and we no longer screw with the URL just to add our internal host there | |
641 | debugs(85, 6, HERE << "validate skipped due to internal composite URL."); | |
642 | http->doCallouts(); | |
643 | return; | |
644 | } | |
645 | ||
fe97983f AJ |
646 | // Locate if there is a port attached, strip ready for IP lookup |
647 | char *portStr = NULL; | |
91663dce AJ |
648 | char *hostB = xstrdup(host); |
649 | host = hostB; | |
fe97983f AJ |
650 | if (host[0] == '[') { |
651 | // IPv6 literal. | |
fe97983f | 652 | portStr = strchr(hostB, ']'); |
91663dce AJ |
653 | if (portStr && *(++portStr) != ':') { |
654 | portStr = NULL; | |
fe97983f | 655 | } |
91663dce | 656 | } else { |
fe97983f | 657 | // Domain or IPv4 literal with port |
fe97983f | 658 | portStr = strrchr(hostB, ':'); |
91663dce AJ |
659 | } |
660 | ||
661 | uint16_t port = 0; | |
662 | if (portStr) { | |
663 | *portStr = '\0'; // strip the ':' | |
664 | if (*(++portStr) != '\0') | |
665 | port = xatoi(portStr); | |
fe97983f AJ |
666 | } |
667 | ||
668 | debugs(85, 3, HERE << "validate host=" << host << ", port=" << port << ", portStr=" << (portStr?portStr:"NULL")); | |
450fe1cb | 669 | if (http->request->flags.intercepted || http->request->flags.spoofClientIp) { |
ba4d9da0 | 670 | // verify the Host: port (if any) matches the apparent destination |
fe97983f | 671 | if (portStr && port != http->getConn()->clientConnection->local.GetPort()) { |
05b28f84 AJ |
672 | debugs(85, 3, HERE << "FAIL on validate port " << http->getConn()->clientConnection->local.GetPort() << |
673 | " matches Host: port " << port << " (" << portStr << ")"); | |
674 | hostHeaderVerifyFailed("intercepted port", portStr); | |
ba4d9da0 AJ |
675 | } else { |
676 | // XXX: match the scheme default port against the apparent destination | |
fe97983f | 677 | |
ba4d9da0 AJ |
678 | // verify the destination DNS is one of the Host: headers IPs |
679 | ipcache_nbgethostbyname(host, hostHeaderIpVerifyWrapper, this); | |
680 | } | |
06059513 | 681 | } else if (!Config.onoff.hostStrictVerify) { |
90529125 AJ |
682 | debugs(85, 3, HERE << "validate skipped."); |
683 | http->doCallouts(); | |
8f489ad7 AJ |
684 | } else if (strlen(host) != strlen(http->request->GetHost())) { |
685 | // Verify forward-proxy requested URL domain matches the Host: header | |
686 | debugs(85, 3, HERE << "FAIL on validate URL domain length " << http->request->GetHost() << " matches Host: " << host); | |
687 | hostHeaderVerifyFailed(host, http->request->GetHost()); | |
688 | } else if (matchDomainName(host, http->request->GetHost()) != 0) { | |
ba4d9da0 | 689 | // Verify forward-proxy requested URL domain matches the Host: header |
fe97983f | 690 | debugs(85, 3, HERE << "FAIL on validate URL domain " << http->request->GetHost() << " matches Host: " << host); |
05b28f84 | 691 | hostHeaderVerifyFailed(host, http->request->GetHost()); |
ba4d9da0 AJ |
692 | } else if (portStr && port != http->request->port) { |
693 | // Verify forward-proxy requested URL domain matches the Host: header | |
694 | debugs(85, 3, HERE << "FAIL on validate URL port " << http->request->port << " matches Host: port " << portStr); | |
695 | hostHeaderVerifyFailed("URL port", portStr); | |
c2a7cefd | 696 | } else if (!portStr && http->request->method != Http::METHOD_CONNECT && http->request->port != urlDefaultPort(http->request->protocol)) { |
ba4d9da0 | 697 | // Verify forward-proxy requested URL domain matches the Host: header |
65d2fdbf | 698 | // Special case: we don't have a default-port to check for CONNECT. Assume URL is correct. |
ba4d9da0 AJ |
699 | debugs(85, 3, HERE << "FAIL on validate URL port " << http->request->port << " matches Host: default port " << urlDefaultPort(http->request->protocol)); |
700 | hostHeaderVerifyFailed("URL port", "default port"); | |
701 | } else { | |
702 | // Okay no problem. | |
703 | debugs(85, 3, HERE << "validate passed."); | |
45e5102d | 704 | http->request->flags.hostVerified = 1; |
ba4d9da0 | 705 | http->doCallouts(); |
fe97983f | 706 | } |
ba4d9da0 | 707 | safe_free(hostB); |
fe97983f AJ |
708 | } |
709 | ||
edce4d98 | 710 | /* This is the entry point for external users of the client_side routines */ |
711 | void | |
de31d06f | 712 | ClientRequestContext::clientAccessCheck() |
edce4d98 | 713 | { |
fbe9e379 | 714 | #if FOLLOW_X_FORWARDED_FOR |
f1a1f20a | 715 | if (!http->request->flags.doneFollowXff() && |
26ac0430 AJ |
716 | Config.accessList.followXFF && |
717 | http->request->header.has(HDR_X_FORWARDED_FOR)) { | |
d096ace1 AJ |
718 | |
719 | /* we always trust the direct client address for actual use */ | |
720 | http->request->indirect_client_addr = http->request->client_addr; | |
fafd0efa | 721 | http->request->indirect_client_addr.SetPort(0); |
d096ace1 AJ |
722 | |
723 | /* setup the XFF iterator for processing */ | |
724 | http->request->x_forwarded_for_iterator = http->request->header.getList(HDR_X_FORWARDED_FOR); | |
725 | ||
726 | /* begin by checking to see if we trust direct client enough to walk XFF */ | |
727 | acl_checklist = clientAclChecklistCreate(Config.accessList.followXFF, http); | |
728 | acl_checklist->nonBlockingCheck(clientFollowXForwardedForCheck, this); | |
3d674977 AJ |
729 | return; |
730 | } | |
fbe9e379 | 731 | #endif |
493d3865 | 732 | |
b50e327b AJ |
733 | if (Config.accessList.http) { |
734 | acl_checklist = clientAclChecklistCreate(Config.accessList.http, http); | |
735 | acl_checklist->nonBlockingCheck(clientAccessCheckDoneWrapper, this); | |
736 | } else { | |
737 | debugs(0, DBG_CRITICAL, "No http_access configuration found. This will block ALL traffic"); | |
738 | clientAccessCheckDone(ACCESS_DENIED); | |
739 | } | |
edce4d98 | 740 | } |
741 | ||
533493da AJ |
742 | /** |
743 | * Identical in operation to clientAccessCheck() but performed later using different configured ACL list. | |
744 | * The default here is to allow all. Since the earlier http_access should do a default deny all. | |
745 | * This check is just for a last-minute denial based on adapted request headers. | |
746 | */ | |
747 | void | |
748 | ClientRequestContext::clientAccessCheck2() | |
749 | { | |
750 | if (Config.accessList.adapted_http) { | |
751 | acl_checklist = clientAclChecklistCreate(Config.accessList.adapted_http, http); | |
752 | acl_checklist->nonBlockingCheck(clientAccessCheckDoneWrapper, this); | |
753 | } else { | |
327e2131 | 754 | debugs(85, 2, HERE << "No adapted_http_access configuration. default: ALLOW"); |
533493da AJ |
755 | clientAccessCheckDone(ACCESS_ALLOWED); |
756 | } | |
757 | } | |
758 | ||
edce4d98 | 759 | void |
2efeb0b7 | 760 | clientAccessCheckDoneWrapper(allow_t answer, void *data) |
edce4d98 | 761 | { |
de31d06f | 762 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; |
fbade053 | 763 | |
de31d06f | 764 | if (!calloutContext->httpStateIsValid()) |
62e76326 | 765 | return; |
62e76326 | 766 | |
de31d06f | 767 | calloutContext->clientAccessCheckDone(answer); |
768 | } | |
769 | ||
9d5e7196 AJ |
770 | void |
771 | ClientRequestContext::clientAccessCheckDone(const allow_t &answer) | |
de31d06f | 772 | { |
773 | acl_checklist = NULL; | |
edce4d98 | 774 | err_type page_id; |
775 | http_status status; | |
9d5e7196 AJ |
776 | debugs(85, 2, "The request " << |
777 | RequestMethodStr(http->request->method) << " " << | |
778 | http->uri << " is " << answer << | |
779 | ", because it matched '" << | |
780 | (AclMatchedName ? AclMatchedName : "NO ACL's") << "'" ); | |
f5691f9c | 781 | |
2f1431ea AJ |
782 | #if USE_AUTH |
783 | char const *proxy_auth_msg = "<null>"; | |
94a396a3 | 784 | if (http->getConn() != NULL && http->getConn()->auth_user_request != NULL) |
f5691f9c | 785 | proxy_auth_msg = http->getConn()->auth_user_request->denyMessage("<null>"); |
786 | else if (http->request->auth_user_request != NULL) | |
787 | proxy_auth_msg = http->request->auth_user_request->denyMessage("<null>"); | |
2f1431ea | 788 | #endif |
62e76326 | 789 | |
dd332b92 | 790 | if (answer != ACCESS_ALLOWED) { |
9d5e7196 | 791 | // auth has a grace period where credentials can be expired but okay not to challenge. |
309347ef | 792 | |
9d5e7196 AJ |
793 | /* Send an auth challenge or error */ |
794 | // XXX: do we still need aclIsProxyAuth() ? | |
dd332b92 | 795 | bool auth_challenge = (answer == ACCESS_AUTH_REQUIRED || aclIsProxyAuth(AclMatchedName)); |
9d5e7196 AJ |
796 | debugs(85, 5, "Access Denied: " << http->uri); |
797 | debugs(85, 5, "AclMatchedName = " << (AclMatchedName ? AclMatchedName : "<null>")); | |
2f1431ea | 798 | #if USE_AUTH |
9d5e7196 AJ |
799 | if (auth_challenge) |
800 | debugs(33, 5, "Proxy Auth Message = " << (proxy_auth_msg ? proxy_auth_msg : "<null>")); | |
2f1431ea | 801 | #endif |
9ce7856a | 802 | |
9d5e7196 AJ |
803 | /* |
804 | * NOTE: get page_id here, based on AclMatchedName because if | |
805 | * USE_DELAY_POOLS is enabled, then AclMatchedName gets clobbered in | |
806 | * the clientCreateStoreEntry() call just below. Pedro Ribeiro | |
807 | * <pribeiro@isel.pt> | |
808 | */ | |
809 | page_id = aclGetDenyInfoPage(&Config.denyInfoList, AclMatchedName, answer != ACCESS_AUTH_REQUIRED); | |
9ce7856a | 810 | |
9d5e7196 | 811 | http->logType = LOG_TCP_DENIED; |
62e76326 | 812 | |
9d5e7196 | 813 | if (auth_challenge) { |
2f1431ea | 814 | #if USE_AUTH |
450fe1cb | 815 | if (http->request->flags.sslBumped) { |
9d5e7196 AJ |
816 | /*SSL Bumped request, authentication is not possible*/ |
817 | status = HTTP_FORBIDDEN; | |
818 | } else if (!http->flags.accel) { | |
819 | /* Proxy authorisation needed */ | |
820 | status = HTTP_PROXY_AUTHENTICATION_REQUIRED; | |
821 | } else { | |
822 | /* WWW authorisation needed */ | |
823 | status = HTTP_UNAUTHORIZED; | |
824 | } | |
ed6163ef | 825 | #else |
9d5e7196 AJ |
826 | // need auth, but not possible to do. |
827 | status = HTTP_FORBIDDEN; | |
ed6163ef | 828 | #endif |
9d5e7196 AJ |
829 | if (page_id == ERR_NONE) |
830 | page_id = ERR_CACHE_ACCESS_DENIED; | |
831 | } else { | |
832 | status = HTTP_FORBIDDEN; | |
ed6163ef | 833 | |
9d5e7196 AJ |
834 | if (page_id == ERR_NONE) |
835 | page_id = ERR_ACCESS_DENIED; | |
836 | } | |
62e76326 | 837 | |
9d5e7196 AJ |
838 | Ip::Address tmpnoaddr; |
839 | tmpnoaddr.SetNoAddr(); | |
87f237a9 | 840 | error = clientBuildError(page_id, status, |
68715527 CT |
841 | NULL, |
842 | http->getConn() != NULL ? http->getConn()->clientConnection->remote : tmpnoaddr, | |
843 | http->request | |
87f237a9 | 844 | ); |
68715527 | 845 | |
2f1431ea | 846 | #if USE_AUTH |
87f237a9 | 847 | error->auth_user_request = |
68715527 CT |
848 | http->getConn() != NULL && http->getConn()->auth_user_request != NULL ? |
849 | http->getConn()->auth_user_request : http->request->auth_user_request; | |
2f1431ea | 850 | #endif |
68715527 CT |
851 | |
852 | readNextRequest = true; | |
9d5e7196 | 853 | } |
de31d06f | 854 | |
dd332b92 | 855 | /* ACCESS_ALLOWED continues here ... */ |
de31d06f | 856 | safe_free(http->uri); |
857 | ||
858 | http->uri = xstrdup(urlCanonical(http->request)); | |
859 | ||
860 | http->doCallouts(); | |
861 | } | |
862 | ||
a83c6ed6 | 863 | #if USE_ADAPTATION |
de31d06f | 864 | void |
79628299 | 865 | ClientHttpRequest::noteAdaptationAclCheckDone(Adaptation::ServiceGroupPointer g) |
de31d06f | 866 | { |
a83c6ed6 | 867 | debugs(93,3,HERE << this << " adaptationAclCheckDone called"); |
6ec67de9 | 868 | |
e1381638 | 869 | #if ICAP_CLIENT |
79628299 | 870 | Adaptation::Icap::History::Pointer ih = request->icapHistory(); |
e1381638 | 871 | if (ih != NULL) { |
79628299 CT |
872 | if (getConn() != NULL) { |
873 | ih->rfc931 = getConn()->clientConnection->rfc931; | |
e1381638 | 874 | #if USE_SSL |
79628299 CT |
875 | assert(getConn()->clientConnection != NULL); |
876 | ih->ssluser = sslGetUserEmail(fd_table[getConn()->clientConnection->fd].ssl); | |
e1381638 | 877 | #endif |
3ff65596 | 878 | } |
79628299 CT |
879 | ih->log_uri = log_uri; |
880 | ih->req_sz = req_sz; | |
3ff65596 AR |
881 | } |
882 | #endif | |
883 | ||
a22e6cd3 AR |
884 | if (!g) { |
885 | debugs(85,3, HERE << "no adaptation needed"); | |
79628299 | 886 | doCallouts(); |
5f8252d2 | 887 | return; |
888 | } | |
de31d06f | 889 | |
79628299 | 890 | startAdaptation(g); |
edce4d98 | 891 | } |
892 | ||
de31d06f | 893 | #endif |
894 | ||
14cc8559 | 895 | static void |
2efeb0b7 | 896 | clientRedirectAccessCheckDone(allow_t answer, void *data) |
14cc8559 | 897 | { |
898 | ClientRequestContext *context = (ClientRequestContext *)data; | |
9d5e7196 AJ |
899 | ClientHttpRequest *http = context->http; |
900 | context->acl_checklist = NULL; | |
14cc8559 | 901 | |
902 | if (answer == ACCESS_ALLOWED) | |
9d5e7196 | 903 | redirectStart(http, clientRedirectDoneWrapper, context); |
14cc8559 | 904 | else |
e166785a | 905 | context->clientRedirectDone(HelperReply(NULL,0)); |
14cc8559 | 906 | } |
907 | ||
de31d06f | 908 | void |
909 | ClientRequestContext::clientRedirectStart() | |
14cc8559 | 910 | { |
48e7baac | 911 | debugs(33, 5, HERE << "'" << http->uri << "'"); |
14cc8559 | 912 | |
14cc8559 | 913 | if (Config.accessList.redirector) { |
de31d06f | 914 | acl_checklist = clientAclChecklistCreate(Config.accessList.redirector, http); |
915 | acl_checklist->nonBlockingCheck(clientRedirectAccessCheckDone, this); | |
14cc8559 | 916 | } else |
de31d06f | 917 | redirectStart(http, clientRedirectDoneWrapper, this); |
14cc8559 | 918 | } |
919 | ||
edce4d98 | 920 | static int |
59a1efb2 | 921 | clientHierarchical(ClientHttpRequest * http) |
edce4d98 | 922 | { |
923 | const char *url = http->uri; | |
190154cf | 924 | HttpRequest *request = http->request; |
60745f24 | 925 | HttpRequestMethod method = request->method; |
edce4d98 | 926 | const wordlist *p = NULL; |
927 | ||
2962f8b8 | 928 | // intercepted requests MUST NOT (yet) be sent to peers unless verified |
450fe1cb | 929 | if (!request->flags.hostVerified && (request->flags.intercepted || request->flags.spoofClientIp)) |
2962f8b8 AJ |
930 | return 0; |
931 | ||
69660be0 | 932 | /* |
933 | * IMS needs a private key, so we can use the hierarchy for IMS only if our | |
934 | * neighbors support private keys | |
935 | */ | |
62e76326 | 936 | |
45e5102d | 937 | if (request->flags.ims && !neighbors_do_private_keys) |
62e76326 | 938 | return 0; |
939 | ||
69660be0 | 940 | /* |
941 | * This is incorrect: authenticating requests can be sent via a hierarchy | |
06b97e72 | 942 | * (they can even be cached if the correct headers are set on the reply) |
edce4d98 | 943 | */ |
45e5102d | 944 | if (request->flags.auth) |
62e76326 | 945 | return 0; |
946 | ||
c2a7cefd | 947 | if (method == Http::METHOD_TRACE) |
62e76326 | 948 | return 1; |
949 | ||
c2a7cefd | 950 | if (method != Http::METHOD_GET) |
62e76326 | 951 | return 0; |
952 | ||
edce4d98 | 953 | /* scan hierarchy_stoplist */ |
954 | for (p = Config.hierarchy_stoplist; p; p = p->next) | |
62e76326 | 955 | if (strstr(url, p->key)) |
956 | return 0; | |
957 | ||
450fe1cb | 958 | if (request->flags.loopDetected) |
62e76326 | 959 | return 0; |
960 | ||
0c3d3f65 | 961 | if (request->protocol == AnyP::PROTO_HTTP) |
c2a7cefd | 962 | return method.respMaybeCacheable(); |
62e76326 | 963 | |
0c3d3f65 | 964 | if (request->protocol == AnyP::PROTO_GOPHER) |
62e76326 | 965 | return gopherCachable(request); |
966 | ||
39a19cb7 | 967 | if (request->protocol == AnyP::PROTO_CACHE_OBJECT) |
62e76326 | 968 | return 0; |
969 | ||
edce4d98 | 970 | return 1; |
971 | } | |
972 | ||
46a1f562 HN |
973 | static void |
974 | clientCheckPinning(ClientHttpRequest * http) | |
975 | { | |
976 | HttpRequest *request = http->request; | |
977 | HttpHeader *req_hdr = &request->header; | |
978 | ConnStateData *http_conn = http->getConn(); | |
979 | ||
980 | /* Internal requests such as those from ESI includes may be without | |
981 | * a client connection | |
982 | */ | |
983 | if (!http_conn) | |
f54f527e | 984 | return; |
46a1f562 | 985 | |
450fe1cb FC |
986 | request->flags.connectionAuthDisabled = http_conn->port->connection_auth_disabled; |
987 | if (!request->flags.connectionAuthDisabled) { | |
73c36fd9 | 988 | if (Comm::IsConnOpen(http_conn->pinning.serverConnection)) { |
46a1f562 | 989 | if (http_conn->pinning.auth) { |
450fe1cb | 990 | request->flags.connectionAuth = 1; |
45e5102d | 991 | request->flags.auth = 1; |
46a1f562 | 992 | } else { |
450fe1cb | 993 | request->flags.connectionProxyAuth = 1; |
46a1f562 | 994 | } |
b1cf2350 AJ |
995 | // These should already be linked correctly. |
996 | assert(request->clientConnectionManager == http_conn); | |
46a1f562 HN |
997 | } |
998 | } | |
999 | ||
1000 | /* check if connection auth is used, and flag as candidate for pinning | |
45e5102d | 1001 | * in such case. |
450fe1cb | 1002 | * Note: we may need to set flags.connectionAuth even if the connection |
46a1f562 HN |
1003 | * is already pinned if it was pinned earlier due to proxy auth |
1004 | */ | |
450fe1cb | 1005 | if (!request->flags.connectionAuth) { |
46a1f562 HN |
1006 | if (req_hdr->has(HDR_AUTHORIZATION) || req_hdr->has(HDR_PROXY_AUTHORIZATION)) { |
1007 | HttpHeaderPos pos = HttpHeaderInitPos; | |
1008 | HttpHeaderEntry *e; | |
1009 | int may_pin = 0; | |
1010 | while ((e = req_hdr->getEntry(&pos))) { | |
1011 | if (e->id == HDR_AUTHORIZATION || e->id == HDR_PROXY_AUTHORIZATION) { | |
1012 | const char *value = e->value.rawBuf(); | |
1013 | if (strncasecmp(value, "NTLM ", 5) == 0 | |
1014 | || | |
1015 | strncasecmp(value, "Negotiate ", 10) == 0 | |
1016 | || | |
1017 | strncasecmp(value, "Kerberos ", 9) == 0) { | |
1018 | if (e->id == HDR_AUTHORIZATION) { | |
450fe1cb | 1019 | request->flags.connectionAuth = 1; |
46a1f562 HN |
1020 | may_pin = 1; |
1021 | } else { | |
450fe1cb | 1022 | request->flags.connectionProxyAuth = 1; |
46a1f562 HN |
1023 | may_pin = 1; |
1024 | } | |
1025 | } | |
1026 | } | |
1027 | } | |
1028 | if (may_pin && !request->pinnedConnection()) { | |
b1cf2350 AJ |
1029 | // These should already be linked correctly. Just need the ServerConnection to pinn. |
1030 | assert(request->clientConnectionManager == http_conn); | |
46a1f562 HN |
1031 | } |
1032 | } | |
1033 | } | |
1034 | } | |
1035 | ||
edce4d98 | 1036 | static void |
59a1efb2 | 1037 | clientInterpretRequestHeaders(ClientHttpRequest * http) |
edce4d98 | 1038 | { |
190154cf | 1039 | HttpRequest *request = http->request; |
0ef77270 | 1040 | HttpHeader *req_hdr = &request->header; |
5086523e | 1041 | bool no_cache = false; |
edce4d98 | 1042 | const char *str; |
62e76326 | 1043 | |
edce4d98 | 1044 | request->imslen = -1; |
a9925b40 | 1045 | request->ims = req_hdr->getTime(HDR_IF_MODIFIED_SINCE); |
62e76326 | 1046 | |
edce4d98 | 1047 | if (request->ims > 0) |
45e5102d | 1048 | request->flags.ims = 1; |
62e76326 | 1049 | |
450fe1cb | 1050 | if (!request->flags.ignoreCc) { |
47fbd2a7 | 1051 | if (request->cache_control) { |
4ce6e3b5 | 1052 | if (request->cache_control->noCache()) |
5086523e | 1053 | no_cache=true; |
62e76326 | 1054 | |
adc2a453 | 1055 | // RFC 2616: treat Pragma:no-cache as if it was Cache-Control:no-cache when Cache-Control is missing |
47fbd2a7 | 1056 | } else if (req_hdr->has(HDR_PRAGMA)) |
cdf55306 AJ |
1057 | no_cache = req_hdr->hasListMember(HDR_PRAGMA,"no-cache",','); |
1058 | ||
432bc83c HN |
1059 | /* |
1060 | * Work around for supporting the Reload button in IE browsers when Squid | |
1061 | * is used as an accelerator or transparent proxy, by turning accelerated | |
1062 | * IMS request to no-cache requests. Now knows about IE 5.5 fix (is | |
1063 | * actually only fixed in SP1, but we can't tell whether we are talking to | |
1064 | * SP1 or not so all 5.5 versions are treated 'normally'). | |
1065 | */ | |
1066 | if (Config.onoff.ie_refresh) { | |
45e5102d | 1067 | if (http->flags.accel && request->flags.ims) { |
432bc83c HN |
1068 | if ((str = req_hdr->getStr(HDR_USER_AGENT))) { |
1069 | if (strstr(str, "MSIE 5.01") != NULL) | |
5086523e | 1070 | no_cache=true; |
432bc83c | 1071 | else if (strstr(str, "MSIE 5.0") != NULL) |
5086523e | 1072 | no_cache=true; |
432bc83c | 1073 | else if (strstr(str, "MSIE 4.") != NULL) |
5086523e | 1074 | no_cache=true; |
432bc83c | 1075 | else if (strstr(str, "MSIE 3.") != NULL) |
5086523e | 1076 | no_cache=true; |
432bc83c | 1077 | } |
62e76326 | 1078 | } |
1079 | } | |
edce4d98 | 1080 | } |
914b89a2 | 1081 | |
c2a7cefd | 1082 | if (request->method == Http::METHOD_OTHER) { |
5086523e | 1083 | no_cache=true; |
60745f24 | 1084 | } |
62e76326 | 1085 | |
edce4d98 | 1086 | if (no_cache) { |
626096be | 1087 | #if USE_HTTP_VIOLATIONS |
62e76326 | 1088 | |
1089 | if (Config.onoff.reload_into_ims) | |
450fe1cb | 1090 | request->flags.nocacheHack = 1; |
62e76326 | 1091 | else if (refresh_nocache_hack) |
450fe1cb | 1092 | request->flags.nocacheHack = 1; |
62e76326 | 1093 | else |
edce4d98 | 1094 | #endif |
62e76326 | 1095 | |
450fe1cb | 1096 | request->flags.noCache = 1; |
edce4d98 | 1097 | } |
62e76326 | 1098 | |
0ef77270 | 1099 | /* ignore range header in non-GETs or non-HEADs */ |
c2a7cefd | 1100 | if (request->method == Http::METHOD_GET || request->method == Http::METHOD_HEAD) { |
56713d9a AR |
1101 | // XXX: initialize if we got here without HttpRequest::parseHeader() |
1102 | if (!request->range) | |
1103 | request->range = req_hdr->getRange(); | |
62e76326 | 1104 | |
1105 | if (request->range) { | |
450fe1cb | 1106 | request->flags.isRanged=true; |
62e76326 | 1107 | clientStreamNode *node = (clientStreamNode *)http->client_stream.tail->data; |
1108 | /* XXX: This is suboptimal. We should give the stream the range set, | |
1109 | * and thereby let the top of the stream set the offset when the | |
26ac0430 | 1110 | * size becomes known. As it is, we will end up requesting from 0 |
62e76326 | 1111 | * for evey -X range specification. |
1112 | * RBC - this may be somewhat wrong. We should probably set the range | |
1113 | * iter up at this point. | |
1114 | */ | |
1115 | node->readBuffer.offset = request->range->lowestOffset(0); | |
1116 | http->range_iter.pos = request->range->begin(); | |
1117 | http->range_iter.valid = true; | |
1118 | } | |
edce4d98 | 1119 | } |
62e76326 | 1120 | |
0ef77270 | 1121 | /* Only HEAD and GET requests permit a Range or Request-Range header. |
1122 | * If these headers appear on any other type of request, delete them now. | |
1123 | */ | |
1124 | else { | |
1125 | req_hdr->delById(HDR_RANGE); | |
1126 | req_hdr->delById(HDR_REQUEST_RANGE); | |
56713d9a | 1127 | delete request->range; |
0ef77270 | 1128 | request->range = NULL; |
1129 | } | |
1130 | ||
a9925b40 | 1131 | if (req_hdr->has(HDR_AUTHORIZATION)) |
45e5102d | 1132 | request->flags.auth = 1; |
62e76326 | 1133 | |
46a1f562 | 1134 | clientCheckPinning(http); |
d67acb4e | 1135 | |
edce4d98 | 1136 | if (request->login[0] != '\0') |
45e5102d | 1137 | request->flags.auth = 1; |
62e76326 | 1138 | |
a9925b40 | 1139 | if (req_hdr->has(HDR_VIA)) { |
30abd221 | 1140 | String s = req_hdr->getList(HDR_VIA); |
62e76326 | 1141 | /* |
3c4fcf0f | 1142 | * ThisCache cannot be a member of Via header, "1.1 ThisCache" can. |
62e76326 | 1143 | * Note ThisCache2 has a space prepended to the hostname so we don't |
1144 | * accidentally match super-domains. | |
1145 | */ | |
1146 | ||
1147 | if (strListIsSubstr(&s, ThisCache2, ',')) { | |
1148 | debugObj(33, 1, "WARNING: Forwarding loop detected for:\n", | |
1149 | request, (ObjPackMethod) & httpRequestPack); | |
450fe1cb | 1150 | request->flags.loopDetected = 1; |
62e76326 | 1151 | } |
1152 | ||
21f6708d | 1153 | #if USE_FORW_VIA_DB |
bb790702 | 1154 | fvdbCountVia(s.termedBuf()); |
62e76326 | 1155 | |
edce4d98 | 1156 | #endif |
62e76326 | 1157 | |
30abd221 | 1158 | s.clean(); |
edce4d98 | 1159 | } |
62e76326 | 1160 | |
21f6708d | 1161 | #if USE_FORW_VIA_DB |
62e76326 | 1162 | |
a9925b40 | 1163 | if (req_hdr->has(HDR_X_FORWARDED_FOR)) { |
30abd221 | 1164 | String s = req_hdr->getList(HDR_X_FORWARDED_FOR); |
bb790702 | 1165 | fvdbCountForw(s.termedBuf()); |
30abd221 | 1166 | s.clean(); |
edce4d98 | 1167 | } |
62e76326 | 1168 | |
edce4d98 | 1169 | #endif |
62e76326 | 1170 | |
c2a7cefd | 1171 | request->flags.cachable = http->request->maybeCacheable(); |
62e76326 | 1172 | |
edce4d98 | 1173 | if (clientHierarchical(http)) |
45e5102d | 1174 | request->flags.hierarchical = 1; |
62e76326 | 1175 | |
bf8fe701 | 1176 | debugs(85, 5, "clientInterpretRequestHeaders: REQ_NOCACHE = " << |
450fe1cb | 1177 | (request->flags.noCache ? "SET" : "NOT SET")); |
bf8fe701 | 1178 | debugs(85, 5, "clientInterpretRequestHeaders: REQ_CACHABLE = " << |
45e5102d | 1179 | (request->flags.cachable ? "SET" : "NOT SET")); |
bf8fe701 | 1180 | debugs(85, 5, "clientInterpretRequestHeaders: REQ_HIERARCHICAL = " << |
45e5102d | 1181 | (request->flags.hierarchical ? "SET" : "NOT SET")); |
62e76326 | 1182 | |
edce4d98 | 1183 | } |
1184 | ||
1185 | void | |
e166785a | 1186 | clientRedirectDoneWrapper(void *data, const HelperReply &result) |
edce4d98 | 1187 | { |
de31d06f | 1188 | ClientRequestContext *calloutContext = (ClientRequestContext *)data; |
db02222f | 1189 | |
de31d06f | 1190 | if (!calloutContext->httpStateIsValid()) |
62e76326 | 1191 | return; |
62e76326 | 1192 | |
de31d06f | 1193 | calloutContext->clientRedirectDone(result); |
1194 | } | |
1195 | ||
1196 | void | |
e166785a | 1197 | ClientRequestContext::clientRedirectDone(const HelperReply &reply) |
de31d06f | 1198 | { |
190154cf | 1199 | HttpRequest *old_request = http->request; |
e166785a | 1200 | debugs(85, 5, HERE << "'" << http->uri << "' result=" << reply); |
de31d06f | 1201 | assert(redirect_state == REDIRECT_PENDING); |
1202 | redirect_state = REDIRECT_DONE; | |
62e76326 | 1203 | |
e166785a AJ |
1204 | if (reply.other().hasContent()) { |
1205 | /* 2012-06-28: This cast is due to urlParse() truncating too-long URLs itself. | |
1206 | * At this point altering the helper buffer in that way is not harmful, but annoying. | |
1207 | * When Bug 1961 is resolved and urlParse has a const API, this needs to die. | |
1208 | */ | |
1209 | char * result = const_cast<char*>(reply.other().content()); | |
62e76326 | 1210 | http_status status = (http_status) atoi(result); |
1211 | ||
1212 | if (status == HTTP_MOVED_PERMANENTLY | |
1213 | || status == HTTP_MOVED_TEMPORARILY | |
1214 | || status == HTTP_SEE_OTHER | |
6bc67152 | 1215 | || status == HTTP_PERMANENT_REDIRECT |
62e76326 | 1216 | || status == HTTP_TEMPORARY_REDIRECT) { |
e166785a | 1217 | char *t = NULL; |
62e76326 | 1218 | |
1219 | if ((t = strchr(result, ':')) != NULL) { | |
1220 | http->redirect.status = status; | |
1221 | http->redirect.location = xstrdup(t + 1); | |
e5b677f0 | 1222 | // TODO: validate the URL produced here is RFC 2616 compliant absolute URI |
62e76326 | 1223 | } else { |
6bc67152 | 1224 | debugs(85, DBG_CRITICAL, "ERROR: URL-rewrite produces invalid " << status << " redirect Location: " << result); |
62e76326 | 1225 | } |
e5b677f0 | 1226 | } else if (strcmp(result, http->uri)) { |
9be14530 AJ |
1227 | // XXX: validate the URL properly *without* generating a whole new request object right here. |
1228 | // XXX: the clone() should be done only AFTER we know the new URL is valid. | |
1229 | HttpRequest *new_request = old_request->clone(); | |
1230 | if (urlParse(old_request->method, result, new_request)) { | |
1231 | debugs(61,2, HERE << "URL-rewriter diverts URL from " << urlCanonical(old_request) << " to " << urlCanonical(new_request)); | |
1232 | ||
1233 | // update the new request to flag the re-writing was done on it | |
45e5102d | 1234 | new_request->flags.redirected = 1; |
9be14530 AJ |
1235 | |
1236 | // unlink bodypipe from the old request. Not needed there any longer. | |
1237 | if (old_request->body_pipe != NULL) { | |
1238 | old_request->body_pipe = NULL; | |
1239 | debugs(61,2, HERE << "URL-rewriter diverts body_pipe " << new_request->body_pipe << | |
1240 | " from request " << old_request << " to " << new_request); | |
1241 | } | |
1242 | ||
1243 | // update the current working ClientHttpRequest fields | |
1244 | safe_free(http->uri); | |
1245 | http->uri = xstrdup(urlCanonical(new_request)); | |
1246 | HTTPMSGUNLOCK(old_request); | |
1247 | http->request = HTTPMSGLOCK(new_request); | |
1248 | } else { | |
e5b677f0 | 1249 | debugs(85, DBG_CRITICAL, "ERROR: URL-rewrite produces invalid request: " << |
c9fd01b4 | 1250 | old_request->method << " " << result << " " << old_request->http_ver); |
9be14530 AJ |
1251 | delete new_request; |
1252 | } | |
74b48915 | 1253 | } |
edce4d98 | 1254 | } |
62e76326 | 1255 | |
edce4d98 | 1256 | /* FIXME PIPELINE: This is innacurate during pipelining */ |
62e76326 | 1257 | |
73c36fd9 AJ |
1258 | if (http->getConn() != NULL && Comm::IsConnOpen(http->getConn()->clientConnection)) |
1259 | fd_note(http->getConn()->clientConnection->fd, http->uri); | |
62e76326 | 1260 | |
c8be6d7b | 1261 | assert(http->uri); |
62e76326 | 1262 | |
de31d06f | 1263 | http->doCallouts(); |
edce4d98 | 1264 | } |
1265 | ||
b50e327b AJ |
1266 | /** Test cache allow/deny configuration |
1267 | * Sets flags.cachable=1 if caching is not denied. | |
1268 | */ | |
edce4d98 | 1269 | void |
8e2745f4 | 1270 | ClientRequestContext::checkNoCache() |
edce4d98 | 1271 | { |
b50e327b AJ |
1272 | if (Config.accessList.noCache) { |
1273 | acl_checklist = clientAclChecklistCreate(Config.accessList.noCache, http); | |
1274 | acl_checklist->nonBlockingCheck(checkNoCacheDoneWrapper, this); | |
1275 | } else { | |
1276 | /* unless otherwise specified, we try to cache. */ | |
2efeb0b7 | 1277 | checkNoCacheDone(ACCESS_ALLOWED); |
b50e327b | 1278 | } |
edce4d98 | 1279 | } |
1280 | ||
de31d06f | 1281 | static void |
2efeb0b7 | 1282 | checkNoCacheDoneWrapper(allow_t answer, void *data) |
edce4d98 | 1283 | { |
de31d06f | 1284 | ClientRequestContext *calloutContext = (ClientRequestContext *) data; |
e4a67a80 | 1285 | |
de31d06f | 1286 | if (!calloutContext->httpStateIsValid()) |
1287 | return; | |
1288 | ||
1289 | calloutContext->checkNoCacheDone(answer); | |
8e2745f4 | 1290 | } |
4fb35c3c | 1291 | |
8e2745f4 | 1292 | void |
2efeb0b7 | 1293 | ClientRequestContext::checkNoCacheDone(const allow_t &answer) |
62e76326 | 1294 | { |
8e2745f4 | 1295 | acl_checklist = NULL; |
45e5102d | 1296 | http->request->flags.cachable = (answer == ACCESS_ALLOWED); |
de31d06f | 1297 | http->doCallouts(); |
edce4d98 | 1298 | } |
1299 | ||
e0c0d54c CT |
1300 | #if USE_SSL |
1301 | bool | |
1302 | ClientRequestContext::sslBumpAccessCheck() | |
1303 | { | |
08097970 AR |
1304 | // If SSL connection tunneling or bumping decision has been made, obey it. |
1305 | const Ssl::BumpMode bumpMode = http->getConn()->sslBumpMode; | |
1306 | if (bumpMode != Ssl::bumpEnd) { | |
1307 | debugs(85, 5, HERE << "SslBump already decided (" << bumpMode << | |
1308 | "), " << "ignoring ssl_bump for " << http->getConn()); | |
71cae389 | 1309 | http->al->ssl.bumpMode = bumpMode; // inherited from bumped connection |
08097970 AR |
1310 | return false; |
1311 | } | |
e0c0d54c | 1312 | |
08097970 AR |
1313 | // If we have not decided yet, decide whether to bump now. |
1314 | ||
1315 | // Bumping here can only start with a CONNECT request on a bumping port | |
1316 | // (bumping of intercepted SSL conns is decided before we get 1st request). | |
1317 | // We also do not bump redirected CONNECT requests. | |
c2a7cefd | 1318 | if (http->request->method != Http::METHOD_CONNECT || http->redirect.status || |
87f237a9 | 1319 | !Config.accessList.ssl_bump || !http->getConn()->port->sslBump) { |
71cae389 | 1320 | http->al->ssl.bumpMode = Ssl::bumpEnd; // SslBump does not apply; log - |
08097970 | 1321 | debugs(85, 5, HERE << "cannot SslBump this request"); |
e0c0d54c CT |
1322 | return false; |
1323 | } | |
08097970 AR |
1324 | |
1325 | // Do not bump during authentication: clients would not proxy-authenticate | |
1326 | // if we delay a 407 response and respond with 200 OK to CONNECT. | |
1327 | if (error && error->httpStatus == HTTP_PROXY_AUTHENTICATION_REQUIRED) { | |
71cae389 | 1328 | http->al->ssl.bumpMode = Ssl::bumpEnd; // SslBump does not apply; log - |
08097970 AR |
1329 | debugs(85, 5, HERE << "no SslBump during proxy authentication"); |
1330 | return false; | |
1331 | } | |
1332 | ||
1333 | debugs(85, 5, HERE << "SslBump possible, checking ACL"); | |
1334 | ||
1335 | ACLFilledChecklist *acl_checklist = clientAclChecklistCreate(Config.accessList.ssl_bump, http); | |
1336 | acl_checklist->nonBlockingCheck(sslBumpAccessCheckDoneWrapper, this); | |
1337 | return true; | |
e0c0d54c CT |
1338 | } |
1339 | ||
f8901ea9 | 1340 | /** |
e0c0d54c CT |
1341 | * A wrapper function to use the ClientRequestContext::sslBumpAccessCheckDone method |
1342 | * as ACLFilledChecklist callback | |
1343 | */ | |
1344 | static void | |
2efeb0b7 | 1345 | sslBumpAccessCheckDoneWrapper(allow_t answer, void *data) |
e0c0d54c CT |
1346 | { |
1347 | ClientRequestContext *calloutContext = static_cast<ClientRequestContext *>(data); | |
9d5e7196 AJ |
1348 | |
1349 | if (!calloutContext->httpStateIsValid()) | |
1350 | return; | |
ed6163ef | 1351 | calloutContext->sslBumpAccessCheckDone(answer); |
e0c0d54c CT |
1352 | } |
1353 | ||
1354 | void | |
ed6163ef | 1355 | ClientRequestContext::sslBumpAccessCheckDone(const allow_t &answer) |
e0c0d54c | 1356 | { |
ed6163ef AJ |
1357 | if (!httpStateIsValid()) |
1358 | return; | |
1359 | ||
08097970 | 1360 | const Ssl::BumpMode bumpMode = answer == ACCESS_ALLOWED ? |
87f237a9 | 1361 | static_cast<Ssl::BumpMode>(answer.kind) : Ssl::bumpNone; |
08097970 | 1362 | http->sslBumpNeed(bumpMode); // for processRequest() to bump if needed |
71cae389 | 1363 | http->al->ssl.bumpMode = bumpMode; // for logging |
caf3666d | 1364 | |
e0c0d54c CT |
1365 | http->doCallouts(); |
1366 | } | |
1367 | #endif | |
1368 | ||
69660be0 | 1369 | /* |
1370 | * Identify requests that do not go through the store and client side stream | |
1371 | * and forward them to the appropriate location. All other requests, request | |
1372 | * them. | |
edce4d98 | 1373 | */ |
1374 | void | |
8e2745f4 | 1375 | ClientHttpRequest::processRequest() |
edce4d98 | 1376 | { |
60745f24 | 1377 | debugs(85, 4, "clientProcessRequest: " << RequestMethodStr(request->method) << " '" << uri << "'"); |
62e76326 | 1378 | |
c2a7cefd | 1379 | if (request->method == Http::METHOD_CONNECT && !redirect.status) { |
3712be3f | 1380 | #if USE_SSL |
31281814 AJ |
1381 | if (sslBumpNeeded()) { |
1382 | sslBumpStart(); | |
1383 | return; | |
1384 | } | |
3712be3f | 1385 | #endif |
62e76326 | 1386 | logType = LOG_TCP_MISS; |
f84dd7eb | 1387 | getConn()->stopReading(); // tunnels read for themselves |
41ebd397 | 1388 | tunnelStart(this, &out.size, &al->http.code); |
62e76326 | 1389 | return; |
edce4d98 | 1390 | } |
62e76326 | 1391 | |
8e2745f4 | 1392 | httpStart(); |
1393 | } | |
1394 | ||
1395 | void | |
1396 | ClientHttpRequest::httpStart() | |
1397 | { | |
559da936 | 1398 | PROF_start(httpStart); |
8e2745f4 | 1399 | logType = LOG_TAG_NONE; |
38e16f92 | 1400 | debugs(85, 4, "ClientHttpRequest::httpStart: " << Format::log_tags[logType] << " for '" << uri << "'"); |
bf8fe701 | 1401 | |
edce4d98 | 1402 | /* no one should have touched this */ |
8e2745f4 | 1403 | assert(out.offset == 0); |
edce4d98 | 1404 | /* Use the Stream Luke */ |
8e2745f4 | 1405 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->data; |
1406 | clientStreamRead(node, this, node->readBuffer); | |
559da936 | 1407 | PROF_stop(httpStart); |
edce4d98 | 1408 | } |
0655fa4d | 1409 | |
3712be3f | 1410 | #if USE_SSL |
1411 | ||
e0c0d54c | 1412 | void |
08097970 | 1413 | ClientHttpRequest::sslBumpNeed(Ssl::BumpMode mode) |
e0c0d54c | 1414 | { |
caf3666d | 1415 | debugs(83, 3, HERE << "sslBump required: "<< Ssl::bumpMode(mode)); |
08097970 | 1416 | sslBumpNeed_ = mode; |
3712be3f | 1417 | } |
1418 | ||
1419 | // called when comm_write has completed | |
1420 | static void | |
e0d28505 | 1421 | SslBumpEstablish(const Comm::ConnectionPointer &, char *, size_t, comm_err_t errflag, int, void *data) |
3712be3f | 1422 | { |
1423 | ClientHttpRequest *r = static_cast<ClientHttpRequest*>(data); | |
1424 | debugs(85, 5, HERE << "responded to CONNECT: " << r << " ? " << errflag); | |
1425 | ||
1426 | assert(r && cbdataReferenceValid(r)); | |
1427 | r->sslBumpEstablish(errflag); | |
1428 | } | |
1429 | ||
1430 | void | |
1431 | ClientHttpRequest::sslBumpEstablish(comm_err_t errflag) | |
1432 | { | |
1433 | // Bail out quickly on COMM_ERR_CLOSING - close handlers will tidy up | |
1434 | if (errflag == COMM_ERR_CLOSING) | |
1435 | return; | |
1436 | ||
1437 | if (errflag) { | |
1fa35be8 | 1438 | debugs(85, 3, HERE << "CONNECT response failure in SslBump: " << errflag); |
bbc83914 | 1439 | getConn()->clientConnection->close(); |
3712be3f | 1440 | return; |
1441 | } | |
1442 | ||
40d8be97 AR |
1443 | // We lack HttpReply which logRequest() uses to log the status code. |
1444 | // TODO: Use HttpReply instead of the "200 Connection established" string. | |
71cae389 | 1445 | al->http.code = 200; |
40d8be97 | 1446 | |
21512911 CT |
1447 | #if USE_AUTH |
1448 | // Preserve authentication info for the ssl-bumped request | |
1449 | if (request->auth_user_request != NULL) | |
1450 | getConn()->auth_user_request = request->auth_user_request; | |
1451 | #endif | |
03f00a11 | 1452 | |
08097970 AR |
1453 | assert(sslBumpNeeded()); |
1454 | getConn()->switchToHttps(request, sslBumpNeed_); | |
3712be3f | 1455 | } |
1456 | ||
1457 | void | |
1458 | ClientHttpRequest::sslBumpStart() | |
1459 | { | |
08097970 AR |
1460 | debugs(85, 5, HERE << "Confirming " << Ssl::bumpMode(sslBumpNeed_) << |
1461 | "-bumped CONNECT tunnel on FD " << getConn()->clientConnection); | |
1462 | getConn()->sslBumpMode = sslBumpNeed_; | |
3712be3f | 1463 | |
08097970 | 1464 | // send an HTTP 200 response to kick client SSL negotiation |
3712be3f | 1465 | // TODO: Unify with tunnel.cc and add a Server(?) header |
b0388924 | 1466 | static const char *const conn_established = "HTTP/1.1 200 Connection established\r\n\r\n"; |
ec41b64c AJ |
1467 | AsyncCall::Pointer call = commCbCall(85, 5, "ClientSocketContext::sslBumpEstablish", |
1468 | CommIoCbPtrFun(&SslBumpEstablish, this)); | |
73c36fd9 | 1469 | Comm::Write(getConn()->clientConnection, conn_established, strlen(conn_established), call, NULL); |
3712be3f | 1470 | } |
1471 | ||
1472 | #endif | |
1473 | ||
0655fa4d | 1474 | bool |
1475 | ClientHttpRequest::gotEnough() const | |
1476 | { | |
86a2f789 | 1477 | /** TODO: should be querying the stream. */ |
7173d5b0 | 1478 | int64_t contentLength = |
06a5ae20 | 1479 | memObject()->getReply()->bodySize(request->method); |
0655fa4d | 1480 | assert(contentLength >= 0); |
1481 | ||
1482 | if (out.offset < contentLength) | |
1483 | return false; | |
1484 | ||
1485 | return true; | |
1486 | } | |
1487 | ||
86a2f789 | 1488 | void |
1489 | ClientHttpRequest::storeEntry(StoreEntry *newEntry) | |
1490 | { | |
1491 | entry_ = newEntry; | |
1492 | } | |
1493 | ||
0976f8db | 1494 | void |
1495 | ClientHttpRequest::loggingEntry(StoreEntry *newEntry) | |
1496 | { | |
1497 | if (loggingEntry_) | |
97b5e68f | 1498 | loggingEntry_->unlock(); |
0976f8db | 1499 | |
1500 | loggingEntry_ = newEntry; | |
1501 | ||
1502 | if (loggingEntry_) | |
3d0ac046 | 1503 | loggingEntry_->lock(); |
0976f8db | 1504 | } |
86a2f789 | 1505 | |
de31d06f | 1506 | /* |
1507 | * doCallouts() - This function controls the order of "callout" | |
1508 | * executions, including non-blocking access control checks, the | |
1509 | * redirector, and ICAP. Previously, these callouts were chained | |
1510 | * together such that "clientAccessCheckDone()" would call | |
1511 | * "clientRedirectStart()" and so on. | |
1512 | * | |
1513 | * The ClientRequestContext (aka calloutContext) class holds certain | |
1514 | * state data for the callout/callback operations. Previously | |
1515 | * ClientHttpRequest would sort of hand off control to ClientRequestContext | |
1516 | * for a short time. ClientRequestContext would then delete itself | |
1517 | * and pass control back to ClientHttpRequest when all callouts | |
1518 | * were finished. | |
1519 | * | |
1520 | * This caused some problems for ICAP because we want to make the | |
1521 | * ICAP callout after checking ACLs, but before checking the no_cache | |
1522 | * list. We can't stuff the ICAP state into the ClientRequestContext | |
1523 | * class because we still need the ICAP state after ClientRequestContext | |
1524 | * goes away. | |
1525 | * | |
1526 | * Note that ClientRequestContext is created before the first call | |
1527 | * to doCallouts(). | |
1528 | * | |
1529 | * If one of the callouts notices that ClientHttpRequest is no | |
1530 | * longer valid, it should call cbdataReferenceDone() so that | |
1531 | * ClientHttpRequest's reference count goes to zero and it will get | |
1532 | * deleted. ClientHttpRequest will then delete ClientRequestContext. | |
1533 | * | |
1534 | * Note that we set the _done flags here before actually starting | |
1535 | * the callout. This is strictly for convenience. | |
1536 | */ | |
1537 | ||
82afb125 FC |
1538 | tos_t aclMapTOS (acl_tos * head, ACLChecklist * ch); |
1539 | nfmark_t aclMapNfmark (acl_nfmark * head, ACLChecklist * ch); | |
057f5854 | 1540 | |
de31d06f | 1541 | void |
1542 | ClientHttpRequest::doCallouts() | |
1543 | { | |
1544 | assert(calloutContext); | |
1545 | ||
6fca33e0 | 1546 | /*Save the original request for logging purposes*/ |
41ebd397 CT |
1547 | if (!calloutContext->http->al->request) |
1548 | calloutContext->http->al->request = HTTPMSGLOCK(request); | |
6fca33e0 | 1549 | |
38450a50 | 1550 | if (!calloutContext->error) { |
87f237a9 | 1551 | // CVE-2009-0801: verify the Host: header is consistent with other known details. |
38450a50 CT |
1552 | if (!calloutContext->host_header_verify_done) { |
1553 | debugs(83, 3, HERE << "Doing calloutContext->hostHeaderVerify()"); | |
1554 | calloutContext->host_header_verify_done = true; | |
1555 | calloutContext->hostHeaderVerify(); | |
1556 | return; | |
1557 | } | |
fe97983f | 1558 | |
38450a50 CT |
1559 | if (!calloutContext->http_access_done) { |
1560 | debugs(83, 3, HERE << "Doing calloutContext->clientAccessCheck()"); | |
1561 | calloutContext->http_access_done = true; | |
1562 | calloutContext->clientAccessCheck(); | |
1563 | return; | |
1564 | } | |
de31d06f | 1565 | |
a83c6ed6 | 1566 | #if USE_ADAPTATION |
38450a50 CT |
1567 | if (!calloutContext->adaptation_acl_check_done) { |
1568 | calloutContext->adaptation_acl_check_done = true; | |
1569 | if (Adaptation::AccessCheck::Start( | |
87f237a9 A |
1570 | Adaptation::methodReqmod, Adaptation::pointPreCache, |
1571 | request, NULL, this)) | |
38450a50 CT |
1572 | return; // will call callback |
1573 | } | |
de31d06f | 1574 | #endif |
1575 | ||
38450a50 CT |
1576 | if (!calloutContext->redirect_done) { |
1577 | calloutContext->redirect_done = true; | |
1578 | assert(calloutContext->redirect_state == REDIRECT_NONE); | |
de31d06f | 1579 | |
38450a50 CT |
1580 | if (Config.Program.redirect) { |
1581 | debugs(83, 3, HERE << "Doing calloutContext->clientRedirectStart()"); | |
1582 | calloutContext->redirect_state = REDIRECT_PENDING; | |
1583 | calloutContext->clientRedirectStart(); | |
1584 | return; | |
1585 | } | |
de31d06f | 1586 | } |
de31d06f | 1587 | |
38450a50 CT |
1588 | if (!calloutContext->adapted_http_access_done) { |
1589 | debugs(83, 3, HERE << "Doing calloutContext->clientAccessCheck2()"); | |
1590 | calloutContext->adapted_http_access_done = true; | |
1591 | calloutContext->clientAccessCheck2(); | |
1592 | return; | |
1593 | } | |
533493da | 1594 | |
38450a50 CT |
1595 | if (!calloutContext->interpreted_req_hdrs) { |
1596 | debugs(83, 3, HERE << "Doing clientInterpretRequestHeaders()"); | |
1597 | calloutContext->interpreted_req_hdrs = 1; | |
1598 | clientInterpretRequestHeaders(this); | |
1599 | } | |
57abaac0 | 1600 | |
38450a50 CT |
1601 | if (!calloutContext->no_cache_done) { |
1602 | calloutContext->no_cache_done = true; | |
de31d06f | 1603 | |
45e5102d | 1604 | if (Config.accessList.noCache && request->flags.cachable) { |
38450a50 CT |
1605 | debugs(83, 3, HERE << "Doing calloutContext->checkNoCache()"); |
1606 | calloutContext->checkNoCache(); | |
1607 | return; | |
1608 | } | |
de31d06f | 1609 | } |
38450a50 | 1610 | } // if !calloutContext->error |
de31d06f | 1611 | |
425de4c8 AJ |
1612 | if (!calloutContext->tosToClientDone) { |
1613 | calloutContext->tosToClientDone = true; | |
73c36fd9 | 1614 | if (getConn() != NULL && Comm::IsConnOpen(getConn()->clientConnection)) { |
c0941a6a | 1615 | ACLFilledChecklist ch(NULL, request, NULL); |
057f5854 | 1616 | ch.src_addr = request->client_addr; |
1617 | ch.my_addr = request->my_addr; | |
425de4c8 | 1618 | tos_t tos = aclMapTOS(Ip::Qos::TheConfig.tosToClient, &ch); |
3712be3f | 1619 | if (tos) |
73c36fd9 | 1620 | Ip::Qos::setSockTos(getConn()->clientConnection, tos); |
425de4c8 AJ |
1621 | } |
1622 | } | |
1623 | ||
1624 | if (!calloutContext->nfmarkToClientDone) { | |
1625 | calloutContext->nfmarkToClientDone = true; | |
73c36fd9 | 1626 | if (getConn() != NULL && Comm::IsConnOpen(getConn()->clientConnection)) { |
425de4c8 AJ |
1627 | ACLFilledChecklist ch(NULL, request, NULL); |
1628 | ch.src_addr = request->client_addr; | |
1629 | ch.my_addr = request->my_addr; | |
1630 | nfmark_t mark = aclMapNfmark(Ip::Qos::TheConfig.nfmarkToClient, &ch); | |
1631 | if (mark) | |
73c36fd9 | 1632 | Ip::Qos::setSockNfmark(getConn()->clientConnection, mark); |
3712be3f | 1633 | } |
057f5854 | 1634 | } |
1635 | ||
d2565320 | 1636 | #if USE_SSL |
7a957a93 AR |
1637 | // We need to check for SslBump even if the calloutContext->error is set |
1638 | // because bumping may require delaying the error until after CONNECT. | |
e0c0d54c CT |
1639 | if (!calloutContext->sslBumpCheckDone) { |
1640 | calloutContext->sslBumpCheckDone = true; | |
1641 | if (calloutContext->sslBumpAccessCheck()) | |
1642 | return; | |
1643 | /* else no ssl bump required*/ | |
1644 | } | |
d2565320 | 1645 | #endif |
e0c0d54c | 1646 | |
2bd84e5f CT |
1647 | if (calloutContext->error) { |
1648 | const char *uri = urlCanonical(request); | |
1649 | StoreEntry *e= storeCreateEntry(uri, uri, request->flags, request->method); | |
1650 | #if USE_SSL | |
08097970 | 1651 | if (sslBumpNeeded()) { |
2bd84e5f CT |
1652 | // set final error but delay sending until we bump |
1653 | Ssl::ServerBump *srvBump = new Ssl::ServerBump(request, e); | |
1654 | errorAppendEntry(e, calloutContext->error); | |
1655 | calloutContext->error = NULL; | |
1656 | getConn()->setServerBump(srvBump); | |
1657 | e->unlock(); | |
87f237a9 | 1658 | } else |
2bd84e5f CT |
1659 | #endif |
1660 | { | |
7a957a93 | 1661 | // send the error to the client now |
2bd84e5f CT |
1662 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->prev->data; |
1663 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1664 | assert (repContext); | |
1665 | repContext->setReplyToStoreEntry(e); | |
1666 | errorAppendEntry(e, calloutContext->error); | |
1667 | calloutContext->error = NULL; | |
1668 | if (calloutContext->readNextRequest) | |
1669 | getConn()->flags.readMore = true; // resume any pipeline reads. | |
1670 | node = (clientStreamNode *)client_stream.tail->data; | |
1671 | clientStreamRead(node, this, node->readBuffer); | |
1672 | e->unlock(); | |
2bd84e5f CT |
1673 | return; |
1674 | } | |
1675 | } | |
1676 | ||
de31d06f | 1677 | cbdataReferenceDone(calloutContext->http); |
1678 | delete calloutContext; | |
1679 | calloutContext = NULL; | |
de31d06f | 1680 | #if HEADERS_LOG |
1681 | ||
1682 | headersLog(0, 1, request->method, request); | |
1683 | #endif | |
1684 | ||
58d7150d | 1685 | debugs(83, 3, HERE << "calling processRequest()"); |
de31d06f | 1686 | processRequest(); |
3ff65596 AR |
1687 | |
1688 | #if ICAP_CLIENT | |
1689 | Adaptation::Icap::History::Pointer ih = request->icapHistory(); | |
1690 | if (ih != NULL) | |
1691 | ih->logType = logType; | |
1692 | #endif | |
de31d06f | 1693 | } |
1694 | ||
32d002cb | 1695 | #if !_USE_INLINE_ |
86a2f789 | 1696 | #include "client_side_request.cci" |
1697 | #endif | |
de31d06f | 1698 | |
a83c6ed6 | 1699 | #if USE_ADAPTATION |
a22e6cd3 AR |
1700 | /// Initiate an asynchronous adaptation transaction which will call us back. |
1701 | void | |
1702 | ClientHttpRequest::startAdaptation(const Adaptation::ServiceGroupPointer &g) | |
3b299123 | 1703 | { |
a22e6cd3 | 1704 | debugs(85, 3, HERE << "adaptation needed for " << this); |
a83c6ed6 AR |
1705 | assert(!virginHeadSource); |
1706 | assert(!adaptedBodySource); | |
a22e6cd3 | 1707 | virginHeadSource = initiateAdaptation( |
4cb2536f | 1708 | new Adaptation::Iterator(request, NULL, g)); |
a83c6ed6 | 1709 | |
e1381638 | 1710 | // we could try to guess whether we can bypass this adaptation |
a22e6cd3 | 1711 | // initiation failure, but it should not really happen |
4299f876 | 1712 | Must(initiated(virginHeadSource)); |
de31d06f | 1713 | } |
1714 | ||
1715 | void | |
3af10ac0 | 1716 | ClientHttpRequest::noteAdaptationAnswer(const Adaptation::Answer &answer) |
de31d06f | 1717 | { |
de31d06f | 1718 | assert(cbdataReferenceValid(this)); // indicates bug |
3af10ac0 AR |
1719 | clearAdaptation(virginHeadSource); |
1720 | assert(!adaptedBodySource); | |
1721 | ||
1722 | switch (answer.kind) { | |
1723 | case Adaptation::Answer::akForward: | |
1724 | handleAdaptedHeader(answer.message); | |
1725 | break; | |
1726 | ||
1727 | case Adaptation::Answer::akBlock: | |
1728 | handleAdaptationBlock(answer); | |
1729 | break; | |
1730 | ||
1731 | case Adaptation::Answer::akError: | |
1732 | handleAdaptationFailure(ERR_DETAIL_CLT_REQMOD_ABORT, !answer.final); | |
1733 | break; | |
1734 | } | |
1735 | } | |
1736 | ||
1737 | void | |
ec4d1a1d | 1738 | ClientHttpRequest::handleAdaptedHeader(HttpMsg *msg) |
3af10ac0 | 1739 | { |
5f8252d2 | 1740 | assert(msg); |
1741 | ||
b044675d | 1742 | if (HttpRequest *new_req = dynamic_cast<HttpRequest*>(msg)) { |
200ac359 | 1743 | /* |
5f8252d2 | 1744 | * Replace the old request with the new request. |
200ac359 | 1745 | */ |
6dd9f4bd | 1746 | HTTPMSGUNLOCK(request); |
1747 | request = HTTPMSGLOCK(new_req); | |
200ac359 | 1748 | /* |
1749 | * Store the new URI for logging | |
1750 | */ | |
1751 | xfree(uri); | |
1752 | uri = xstrdup(urlCanonical(request)); | |
1753 | setLogUri(this, urlCanonicalClean(request)); | |
914b89a2 | 1754 | assert(request->method.id()); |
b044675d | 1755 | } else if (HttpReply *new_rep = dynamic_cast<HttpReply*>(msg)) { |
1756 | debugs(85,3,HERE << "REQMOD reply is HTTP reply"); | |
1757 | ||
5f8252d2 | 1758 | // subscribe to receive reply body |
1759 | if (new_rep->body_pipe != NULL) { | |
a83c6ed6 | 1760 | adaptedBodySource = new_rep->body_pipe; |
d222a56c HN |
1761 | int consumer_ok = adaptedBodySource->setConsumerIfNotLate(this); |
1762 | assert(consumer_ok); | |
5f8252d2 | 1763 | } |
1764 | ||
b044675d | 1765 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->prev->data; |
1766 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1767 | repContext->createStoreEntry(request->method, request->flags); | |
1768 | ||
1769 | EBIT_CLR(storeEntry()->flags, ENTRY_FWD_HDR_WAIT); | |
1770 | request_satisfaction_mode = true; | |
1771 | request_satisfaction_offset = 0; | |
1772 | storeEntry()->replaceHttpReply(new_rep); | |
97ae5196 | 1773 | storeEntry()->timestampsSet(); |
cb4c4288 | 1774 | |
a83c6ed6 | 1775 | if (!adaptedBodySource) // no body |
cb4c4288 | 1776 | storeEntry()->complete(); |
b044675d | 1777 | clientGetMoreData(node, this); |
200ac359 | 1778 | } |
de31d06f | 1779 | |
5f8252d2 | 1780 | // we are done with getting headers (but may be receiving body) |
a83c6ed6 | 1781 | clearAdaptation(virginHeadSource); |
5f8252d2 | 1782 | |
b044675d | 1783 | if (!request_satisfaction_mode) |
1784 | doCallouts(); | |
de31d06f | 1785 | } |
1786 | ||
1787 | void | |
3af10ac0 | 1788 | ClientHttpRequest::handleAdaptationBlock(const Adaptation::Answer &answer) |
de31d06f | 1789 | { |
3af10ac0 AR |
1790 | request->detailError(ERR_ACCESS_DENIED, ERR_DETAIL_REQMOD_BLOCK); |
1791 | AclMatchedName = answer.ruleId.termedBuf(); | |
1792 | assert(calloutContext); | |
1793 | calloutContext->clientAccessCheckDone(ACCESS_DENIED); | |
1794 | AclMatchedName = NULL; | |
de31d06f | 1795 | } |
1796 | ||
0ad2b63b CT |
1797 | void |
1798 | ClientHttpRequest::resumeBodyStorage() | |
1799 | { | |
e83cdc25 | 1800 | if (!adaptedBodySource) |
0ad2b63b CT |
1801 | return; |
1802 | ||
1803 | noteMoreBodyDataAvailable(adaptedBodySource); | |
1804 | } | |
1805 | ||
de31d06f | 1806 | void |
1cf238db | 1807 | ClientHttpRequest::noteMoreBodyDataAvailable(BodyPipe::Pointer) |
de31d06f | 1808 | { |
5f8252d2 | 1809 | assert(request_satisfaction_mode); |
a83c6ed6 | 1810 | assert(adaptedBodySource != NULL); |
5f8252d2 | 1811 | |
0ad2b63b | 1812 | if (size_t contentSize = adaptedBodySource->buf().contentSize()) { |
4dc2b072 | 1813 | const size_t spaceAvailable = storeEntry()->bytesWanted(Range<size_t>(0,contentSize)); |
0ad2b63b CT |
1814 | |
1815 | if (spaceAvailable < contentSize ) { | |
1816 | // No or partial body data consuming | |
1817 | typedef NullaryMemFunT<ClientHttpRequest> Dialer; | |
1818 | AsyncCall::Pointer call = asyncCall(93, 5, "ClientHttpRequest::resumeBodyStorage", | |
1819 | Dialer(this, &ClientHttpRequest::resumeBodyStorage)); | |
1820 | storeEntry()->deferProducer(call); | |
1821 | } | |
1822 | ||
4dc2b072 | 1823 | if (!spaceAvailable) |
0ad2b63b CT |
1824 | return; |
1825 | ||
1826 | if (spaceAvailable < contentSize ) | |
1827 | contentSize = spaceAvailable; | |
1828 | ||
a83c6ed6 | 1829 | BodyPipeCheckout bpc(*adaptedBodySource); |
0ad2b63b | 1830 | const StoreIOBuffer ioBuf(&bpc.buf, request_satisfaction_offset, contentSize); |
5f8252d2 | 1831 | storeEntry()->write(ioBuf); |
0ad2b63b CT |
1832 | // assume StoreEntry::write() writes the entire ioBuf |
1833 | request_satisfaction_offset += ioBuf.length; | |
4ce0e99b | 1834 | bpc.buf.consume(contentSize); |
5f8252d2 | 1835 | bpc.checkIn(); |
1836 | } | |
1837 | ||
a83c6ed6 | 1838 | if (adaptedBodySource->exhausted()) |
5f8252d2 | 1839 | endRequestSatisfaction(); |
1840 | // else wait for more body data | |
de31d06f | 1841 | } |
1842 | ||
1843 | void | |
1cf238db | 1844 | ClientHttpRequest::noteBodyProductionEnded(BodyPipe::Pointer) |
de31d06f | 1845 | { |
a83c6ed6 | 1846 | assert(!virginHeadSource); |
0ad2b63b CT |
1847 | // should we end request satisfaction now? |
1848 | if (adaptedBodySource != NULL && adaptedBodySource->exhausted()) | |
5f8252d2 | 1849 | endRequestSatisfaction(); |
5f8252d2 | 1850 | } |
3b299123 | 1851 | |
5f8252d2 | 1852 | void |
26ac0430 AJ |
1853 | ClientHttpRequest::endRequestSatisfaction() |
1854 | { | |
5f8252d2 | 1855 | debugs(85,4, HERE << this << " ends request satisfaction"); |
1856 | assert(request_satisfaction_mode); | |
a83c6ed6 | 1857 | stopConsumingFrom(adaptedBodySource); |
3b299123 | 1858 | |
5f8252d2 | 1859 | // TODO: anything else needed to end store entry formation correctly? |
1860 | storeEntry()->complete(); | |
1861 | } | |
de31d06f | 1862 | |
5f8252d2 | 1863 | void |
1cf238db | 1864 | ClientHttpRequest::noteBodyProducerAborted(BodyPipe::Pointer) |
5f8252d2 | 1865 | { |
a83c6ed6 AR |
1866 | assert(!virginHeadSource); |
1867 | stopConsumingFrom(adaptedBodySource); | |
eae3a9a6 AR |
1868 | |
1869 | debugs(85,3, HERE << "REQMOD body production failed"); | |
1870 | if (request_satisfaction_mode) { // too late to recover or serve an error | |
1871 | request->detailError(ERR_ICAP_FAILURE, ERR_DETAIL_CLT_REQMOD_RESP_BODY); | |
73c36fd9 | 1872 | const Comm::ConnectionPointer c = getConn()->clientConnection; |
e7cea0ed AJ |
1873 | Must(Comm::IsConnOpen(c)); |
1874 | c->close(); // drastic, but we may be writing a response already | |
eae3a9a6 AR |
1875 | } else { |
1876 | handleAdaptationFailure(ERR_DETAIL_CLT_REQMOD_REQ_BODY); | |
1877 | } | |
5f8252d2 | 1878 | } |
3b299123 | 1879 | |
5f8252d2 | 1880 | void |
64b66b76 | 1881 | ClientHttpRequest::handleAdaptationFailure(int errDetail, bool bypassable) |
5f8252d2 | 1882 | { |
a83c6ed6 | 1883 | debugs(85,3, HERE << "handleAdaptationFailure(" << bypassable << ")"); |
3b299123 | 1884 | |
5f8252d2 | 1885 | const bool usedStore = storeEntry() && !storeEntry()->isEmpty(); |
1886 | const bool usedPipe = request->body_pipe != NULL && | |
26ac0430 | 1887 | request->body_pipe->consumedSize() > 0; |
3b299123 | 1888 | |
9d4d7c5e | 1889 | if (bypassable && !usedStore && !usedPipe) { |
1890 | debugs(85,3, HERE << "ICAP REQMOD callout failed, bypassing: " << calloutContext); | |
5f8252d2 | 1891 | if (calloutContext) |
1892 | doCallouts(); | |
1893 | return; | |
1894 | } | |
3b299123 | 1895 | |
5f8252d2 | 1896 | debugs(85,3, HERE << "ICAP REQMOD callout failed, responding with error"); |
3b299123 | 1897 | |
5f8252d2 | 1898 | clientStreamNode *node = (clientStreamNode *)client_stream.tail->prev->data; |
1899 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1900 | assert(repContext); | |
de31d06f | 1901 | |
26ac0430 | 1902 | // The original author of the code also wanted to pass an errno to |
5f8252d2 | 1903 | // setReplyToError, but it seems unlikely that the errno reflects the |
1904 | // true cause of the error at this point, so I did not pass it. | |
2bd84e5f CT |
1905 | if (calloutContext) { |
1906 | Ip::Address noAddr; | |
1907 | noAddr.SetNoAddr(); | |
1908 | ConnStateData * c = getConn(); | |
1909 | calloutContext->error = clientBuildError(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR, | |
87f237a9 A |
1910 | NULL, |
1911 | c != NULL ? c->clientConnection->remote : noAddr, | |
1912 | request | |
1913 | ); | |
79fc6915 | 1914 | #if USE_AUTH |
87f237a9 | 1915 | calloutContext->error->auth_user_request = |
2bd84e5f | 1916 | c != NULL && c->auth_user_request != NULL ? c->auth_user_request : request->auth_user_request; |
79fc6915 | 1917 | #endif |
129fe2a1 | 1918 | calloutContext->error->detailError(errDetail); |
2bd84e5f CT |
1919 | calloutContext->readNextRequest = true; |
1920 | c->expectNoForwarding(); | |
1921 | doCallouts(); | |
1922 | } | |
1923 | //else if(calloutContext == NULL) is it possible? | |
de31d06f | 1924 | } |
1925 | ||
1926 | #endif |