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edce4d98 | 1 | /* |
edce4d98 | 2 | * DEBUG: section 88 Client-side Reply Routines |
3 | * AUTHOR: Robert Collins (Originally Duane Wessels in client_side.c) | |
4 | * | |
5 | * SQUID Web Proxy Cache http://www.squid-cache.org/ | |
6 | * ---------------------------------------------------------- | |
7 | * | |
8 | * Squid is the result of efforts by numerous individuals from | |
9 | * the Internet community; see the CONTRIBUTORS file for full | |
10 | * details. Many organizations have provided support for Squid's | |
11 | * development; see the SPONSORS file for full details. Squid is | |
12 | * Copyrighted (C) 2001 by the Regents of the University of | |
13 | * California; see the COPYRIGHT file for full details. Squid | |
14 | * incorporates software developed and/or copyrighted by other | |
15 | * sources; see the CREDITS file for full details. | |
16 | * | |
17 | * This program is free software; you can redistribute it and/or modify | |
18 | * it under the terms of the GNU General Public License as published by | |
19 | * the Free Software Foundation; either version 2 of the License, or | |
20 | * (at your option) any later version. | |
26ac0430 | 21 | * |
edce4d98 | 22 | * This program is distributed in the hope that it will be useful, |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
26ac0430 | 26 | * |
edce4d98 | 27 | * You should have received a copy of the GNU General Public License |
28 | * along with this program; if not, write to the Free Software | |
29 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. | |
30 | * | |
31 | */ | |
f7f3304a | 32 | #include "squid.h" |
b7ac5457 AJ |
33 | #include "acl/FilledChecklist.h" |
34 | #include "acl/Gadgets.h" | |
65d448bc | 35 | #include "anyp/PortCfg.h" |
0655fa4d | 36 | #include "client_side_reply.h" |
582c2af2 | 37 | #include "client_side.h" |
c8be6d7b | 38 | #include "clientStream.h" |
582c2af2 | 39 | #include "dlink.h" |
b7ac5457 | 40 | #include "errorpage.h" |
c4ad1349 | 41 | #include "fd.h" |
7172612f | 42 | #include "fde.h" |
31971e6a | 43 | #include "format/Token.h" |
582c2af2 FC |
44 | #include "forward.h" |
45 | #include "globals.h" | |
46 | #include "globals.h" | |
a5bac1d2 | 47 | #include "HttpHeaderTools.h" |
b7ac5457 AJ |
48 | #include "HttpReply.h" |
49 | #include "HttpRequest.h" | |
50 | #include "ip/QosConfig.h" | |
714e68b7 | 51 | #include "ipcache.h" |
1c7ae5ff | 52 | #include "log/access_log.h" |
b7ac5457 | 53 | #include "MemObject.h" |
b6149797 | 54 | #include "mime_header.h" |
f0ba2534 | 55 | #include "neighbors.h" |
c6f15d40 | 56 | #include "refresh.h" |
f206b652 | 57 | #include "RequestFlags.h" |
4d5904f7 | 58 | #include "SquidConfig.h" |
985c86bc | 59 | #include "SquidTime.h" |
b7ac5457 | 60 | #include "Store.h" |
582c2af2 | 61 | #include "StoreClient.h" |
28204b3b | 62 | #include "StrList.h" |
4e540555 | 63 | #include "tools.h" |
b1bd952a | 64 | #include "URL.h" |
582c2af2 FC |
65 | #if USE_AUTH |
66 | #include "auth/UserRequest.h" | |
67 | #endif | |
68 | #if USE_DELAY_POOLS | |
69 | #include "DelayPools.h" | |
70 | #endif | |
71 | #if USE_SQUID_ESI | |
72 | #include "esi/Esi.h" | |
73 | #endif | |
e6ccf245 | 74 | |
0655fa4d | 75 | CBDATA_CLASS_INIT(clientReplyContext); |
edce4d98 | 76 | |
edce4d98 | 77 | /* Local functions */ |
e6ccf245 | 78 | extern "C" CSS clientReplyStatus; |
82afb125 | 79 | ErrorState *clientBuildError(err_type, http_status, char const *, Ip::Address &, HttpRequest *); |
edce4d98 | 80 | |
edce4d98 | 81 | /* privates */ |
edce4d98 | 82 | |
0655fa4d | 83 | clientReplyContext::~clientReplyContext() |
edce4d98 | 84 | { |
50c09fc4 | 85 | deleting = true; |
86 | /* This may trigger a callback back into SendMoreData as the cbdata | |
87 | * is still valid | |
88 | */ | |
86a2f789 | 89 | removeClientStoreReference(&sc, http); |
edce4d98 | 90 | /* old_entry might still be set if we didn't yet get the reply |
0655fa4d | 91 | * code in HandleIMSReply() */ |
92 | removeStoreReference(&old_sc, &old_entry); | |
93 | safe_free(tempBuffer.data); | |
94 | cbdataReferenceDone(http); | |
2b7d324b | 95 | HTTPMSGUNLOCK(reply); |
edce4d98 | 96 | } |
97 | ||
59a1efb2 | 98 | clientReplyContext::clientReplyContext(ClientHttpRequest *clientContext) : http (cbdataReference(clientContext)), old_entry (NULL), old_sc(NULL), deleting(false) |
0655fa4d | 99 | {} |
edce4d98 | 100 | |
a5c8d64d AJ |
101 | /** Create an error in the store awaiting the client side to read it. |
102 | * | |
103 | * This may be better placed in the clientStream logic, but it has not been | |
0655fa4d | 104 | * relocated there yet |
105 | */ | |
edce4d98 | 106 | void |
0655fa4d | 107 | clientReplyContext::setReplyToError( |
60745f24 | 108 | err_type err, http_status status, const HttpRequestMethod& method, char const *uri, |
b7ac5457 | 109 | Ip::Address &addr, HttpRequest * failedrequest, const char *unparsedrequest, |
2f1431ea | 110 | #if USE_AUTH |
c7baff40 | 111 | Auth::UserRequest::Pointer auth_user_request |
2f1431ea | 112 | #else |
9d2b8284 | 113 | void* |
2f1431ea | 114 | #endif |
74174c03 | 115 | ) |
edce4d98 | 116 | { |
a33a428a | 117 | ErrorState *errstate = clientBuildError(err, status, uri, addr, failedrequest); |
62e76326 | 118 | |
edce4d98 | 119 | if (unparsedrequest) |
62e76326 | 120 | errstate->request_hdrs = xstrdup(unparsedrequest); |
edce4d98 | 121 | |
8eb0a7ee CT |
122 | #if USE_AUTH |
123 | errstate->auth_user_request = auth_user_request; | |
124 | #endif | |
125 | setReplyToError(method, errstate); | |
126 | } | |
127 | ||
128 | void clientReplyContext::setReplyToError(const HttpRequestMethod& method, ErrorState *errstate) | |
129 | { | |
130 | if (errstate->httpStatus == HTTP_NOT_IMPLEMENTED && http->request) | |
62e76326 | 131 | /* prevent confusion over whether we default to persistent or not */ |
450fe1cb | 132 | http->request->flags.proxyKeepalive = 0; |
62e76326 | 133 | |
41ebd397 | 134 | http->al->http.code = errstate->httpStatus; |
edce4d98 | 135 | |
f206b652 | 136 | createStoreEntry(method, RequestFlags()); |
edce4d98 | 137 | assert(errstate->callback_data == NULL); |
86a2f789 | 138 | errorAppendEntry(http->storeEntry(), errstate); |
edce4d98 | 139 | /* Now the caller reads to get this */ |
140 | } | |
141 | ||
061bbdec CT |
142 | void clientReplyContext::setReplyToStoreEntry(StoreEntry *entry) |
143 | { | |
cb9060be | 144 | entry->lock(); // removeClientStoreReference() unlocks |
061bbdec CT |
145 | sc = storeClientListAdd(entry, this); |
146 | #if USE_DELAY_POOLS | |
147 | sc->setDelayId(DelayId::DelayClient(http)); | |
148 | #endif | |
149 | reqofs = 0; | |
150 | reqsize = 0; | |
151 | flags.storelogiccomplete = 1; | |
152 | http->storeEntry(entry); | |
153 | } | |
154 | ||
edce4d98 | 155 | void |
0655fa4d | 156 | clientReplyContext::removeStoreReference(store_client ** scp, |
157 | StoreEntry ** ep) | |
edce4d98 | 158 | { |
159 | StoreEntry *e; | |
e4ae841b | 160 | store_client *sc_tmp = *scp; |
62e76326 | 161 | |
edce4d98 | 162 | if ((e = *ep) != NULL) { |
62e76326 | 163 | *ep = NULL; |
e4ae841b | 164 | storeUnregister(sc_tmp, e, this); |
62e76326 | 165 | *scp = NULL; |
97b5e68f | 166 | e->unlock(); |
edce4d98 | 167 | } |
168 | } | |
169 | ||
86a2f789 | 170 | void |
8bcf08e0 | 171 | clientReplyContext::removeClientStoreReference(store_client **scp, ClientHttpRequest *aHttpRequest) |
86a2f789 | 172 | { |
8bcf08e0 | 173 | StoreEntry *reference = aHttpRequest->storeEntry(); |
86a2f789 | 174 | removeStoreReference(scp, &reference); |
8bcf08e0 | 175 | aHttpRequest->storeEntry(reference); |
86a2f789 | 176 | } |
177 | ||
e6ccf245 | 178 | void * |
a695955b | 179 | clientReplyContext::operator new (size_t byteCount) |
e6ccf245 | 180 | { |
181 | /* derived classes with different sizes must implement their own new */ | |
182 | assert (byteCount == sizeof (clientReplyContext)); | |
0655fa4d | 183 | CBDATA_INIT_TYPE(clientReplyContext); |
e6ccf245 | 184 | return cbdataAlloc(clientReplyContext); |
185 | } | |
186 | ||
187 | void | |
188 | clientReplyContext::operator delete (void *address) | |
189 | { | |
a50bfe93 | 190 | clientReplyContext * tmp = (clientReplyContext *)address; |
191 | cbdataFree (tmp); | |
e6ccf245 | 192 | } |
193 | ||
edce4d98 | 194 | void |
0655fa4d | 195 | clientReplyContext::saveState() |
edce4d98 | 196 | { |
e6ccf245 | 197 | assert(old_sc == NULL); |
bf8fe701 | 198 | debugs(88, 3, "clientReplyContext::saveState: saving store context"); |
86a2f789 | 199 | old_entry = http->storeEntry(); |
e6ccf245 | 200 | old_sc = sc; |
201 | old_reqsize = reqsize; | |
202 | tempBuffer.offset = reqofs; | |
edce4d98 | 203 | /* Prevent accessing the now saved entries */ |
86a2f789 | 204 | http->storeEntry(NULL); |
e6ccf245 | 205 | sc = NULL; |
206 | reqsize = 0; | |
207 | reqofs = 0; | |
edce4d98 | 208 | } |
209 | ||
210 | void | |
0655fa4d | 211 | clientReplyContext::restoreState() |
edce4d98 | 212 | { |
e6ccf245 | 213 | assert(old_sc != NULL); |
bf8fe701 | 214 | debugs(88, 3, "clientReplyContext::restoreState: Restoring store context"); |
86a2f789 | 215 | removeClientStoreReference(&sc, http); |
216 | http->storeEntry(old_entry); | |
e6ccf245 | 217 | sc = old_sc; |
218 | reqsize = old_reqsize; | |
219 | reqofs = tempBuffer.offset; | |
edce4d98 | 220 | /* Prevent accessed the old saved entries */ |
0655fa4d | 221 | old_entry = NULL; |
e6ccf245 | 222 | old_sc = NULL; |
223 | old_reqsize = 0; | |
224 | tempBuffer.offset = 0; | |
c8be6d7b | 225 | } |
226 | ||
227 | void | |
0655fa4d | 228 | clientReplyContext::startError(ErrorState * err) |
c8be6d7b | 229 | { |
f206b652 | 230 | createStoreEntry(http->request->method, RequestFlags()); |
0655fa4d | 231 | triggerInitialStoreRead(); |
86a2f789 | 232 | errorAppendEntry(http->storeEntry(), err); |
edce4d98 | 233 | } |
234 | ||
e6ccf245 | 235 | clientStreamNode * |
528b2c61 | 236 | clientReplyContext::getNextNode() const |
e6ccf245 | 237 | { |
62e76326 | 238 | return (clientStreamNode *)ourNode->node.next->data; |
e6ccf245 | 239 | } |
240 | ||
62e76326 | 241 | /* This function is wrong - the client parameters don't include the |
528b2c61 | 242 | * header offset |
243 | */ | |
c8be6d7b | 244 | void |
0655fa4d | 245 | clientReplyContext::triggerInitialStoreRead() |
c8be6d7b | 246 | { |
0655fa4d | 247 | /* when confident, 0 becomes reqofs, and then this factors into |
26ac0430 | 248 | * startSendProcess |
528b2c61 | 249 | */ |
0655fa4d | 250 | assert(reqofs == 0); |
8bcf08e0 FC |
251 | StoreIOBuffer localTempBuffer (next()->readBuffer.length, 0, next()->readBuffer.data); |
252 | storeClientCopy(sc, http->storeEntry(), localTempBuffer, SendMoreData, this); | |
c8be6d7b | 253 | } |
edce4d98 | 254 | |
255 | /* there is an expired entry in the store. | |
256 | * setup a temporary buffer area and perform an IMS to the origin | |
257 | */ | |
0655fa4d | 258 | void |
259 | clientReplyContext::processExpired() | |
edce4d98 | 260 | { |
edce4d98 | 261 | char *url = http->uri; |
262 | StoreEntry *entry = NULL; | |
bf8fe701 | 263 | debugs(88, 3, "clientReplyContext::processExpired: '" << http->uri << "'"); |
86a2f789 | 264 | assert(http->storeEntry()->lastmod >= 0); |
edce4d98 | 265 | /* |
266 | * check if we are allowed to contact other servers | |
26ac0430 | 267 | * @?@: Instead of a 504 (Gateway Timeout) reply, we may want to return |
edce4d98 | 268 | * a stale entry *if* it matches client requirements |
269 | */ | |
62e76326 | 270 | |
0655fa4d | 271 | if (http->onlyIfCached()) { |
272 | processOnlyIfCachedMiss(); | |
62e76326 | 273 | return; |
edce4d98 | 274 | } |
62e76326 | 275 | |
45e5102d | 276 | http->request->flags.refresh = 1; |
edce4d98 | 277 | #if STORE_CLIENT_LIST_DEBUG |
c8be6d7b | 278 | /* Prevent a race with the store client memory free routines |
edce4d98 | 279 | */ |
0655fa4d | 280 | assert(storeClientIsThisAClient(sc, this)); |
edce4d98 | 281 | #endif |
282 | /* Prepare to make a new temporary request */ | |
0655fa4d | 283 | saveState(); |
edce4d98 | 284 | entry = storeCreateEntry(url, |
62e76326 | 285 | http->log_uri, http->request->flags, http->request->method); |
34266cde | 286 | /* NOTE, don't call StoreEntry->lock(), storeCreateEntry() does it */ |
0655fa4d | 287 | sc = storeClientListAdd(entry, this); |
9a0a18de | 288 | #if USE_DELAY_POOLS |
edce4d98 | 289 | /* delay_id is already set on original store client */ |
0655fa4d | 290 | sc->setDelayId(DelayId::DelayClient(http)); |
edce4d98 | 291 | #endif |
62e76326 | 292 | |
0655fa4d | 293 | http->request->lastmod = old_entry->lastmod; |
4a7a3d56 | 294 | debugs(88, 5, "clientReplyContext::processExpired : lastmod " << entry->lastmod ); |
86a2f789 | 295 | http->storeEntry(entry); |
c8be6d7b | 296 | assert(http->out.offset == 0); |
9174ba3d | 297 | assert(http->request->clientConnectionManager == http->getConn()); |
655daa06 | 298 | |
b2d22df6 | 299 | /* |
300 | * A refcounted pointer so that FwdState stays around as long as | |
301 | * this clientReplyContext does | |
302 | */ | |
73c36fd9 | 303 | Comm::ConnectionPointer conn = http->getConn() != NULL ? http->getConn()->clientConnection : NULL; |
4bf68cfa | 304 | FwdState::Start(conn, http->storeEntry(), http->request, http->al); |
62e76326 | 305 | |
edce4d98 | 306 | /* Register with storage manager to receive updates when data comes in. */ |
62e76326 | 307 | |
edce4d98 | 308 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) |
fa84c01d | 309 | debugs(88, DBG_CRITICAL, "clientReplyContext::processExpired: Found ENTRY_ABORTED object"); |
62e76326 | 310 | |
c8be6d7b | 311 | { |
62e76326 | 312 | /* start counting the length from 0 */ |
8bcf08e0 FC |
313 | StoreIOBuffer localTempBuffer(HTTP_REQBUF_SZ, 0, tempbuf); |
314 | storeClientCopy(sc, entry, localTempBuffer, HandleIMSReply, this); | |
edce4d98 | 315 | } |
316 | } | |
317 | ||
528b2c61 | 318 | void |
319 | clientReplyContext::sendClientUpstreamResponse() | |
320 | { | |
321 | StoreIOBuffer tempresult; | |
0655fa4d | 322 | removeStoreReference(&old_sc, &old_entry); |
2324cda2 | 323 | /* here the data to send is the data we just received */ |
528b2c61 | 324 | tempBuffer.offset = 0; |
325 | old_reqsize = 0; | |
0655fa4d | 326 | /* sendMoreData tracks the offset as well. |
528b2c61 | 327 | * Force it back to zero */ |
328 | reqofs = 0; | |
86a2f789 | 329 | assert(!EBIT_TEST(http->storeEntry()->flags, ENTRY_ABORTED)); |
0655fa4d | 330 | /* TODO: provide sendMoreData with the ready parsed reply */ |
528b2c61 | 331 | tempresult.length = reqsize; |
332 | tempresult.data = tempbuf; | |
0655fa4d | 333 | sendMoreData(tempresult); |
528b2c61 | 334 | } |
335 | ||
edce4d98 | 336 | void |
0655fa4d | 337 | clientReplyContext::HandleIMSReply(void *data, StoreIOBuffer result) |
edce4d98 | 338 | { |
e6ccf245 | 339 | clientReplyContext *context = (clientReplyContext *)data; |
0655fa4d | 340 | context->handleIMSReply(result); |
341 | } | |
62e76326 | 342 | |
0655fa4d | 343 | void |
344 | clientReplyContext::sendClientOldEntry() | |
345 | { | |
346 | /* Get the old request back */ | |
347 | restoreState(); | |
348 | /* here the data to send is in the next nodes buffers already */ | |
86a2f789 | 349 | assert(!EBIT_TEST(http->storeEntry()->flags, ENTRY_ABORTED)); |
0655fa4d | 350 | /* sendMoreData tracks the offset as well. |
351 | * Force it back to zero */ | |
352 | reqofs = 0; | |
353 | StoreIOBuffer tempresult (reqsize, reqofs, next()->readBuffer.data); | |
354 | sendMoreData(tempresult); | |
355 | } | |
62e76326 | 356 | |
1d7ab0f4 | 357 | /* This is the workhorse of the HandleIMSReply callback. |
358 | * | |
359 | * It is called when we've got data back from the origin following our | |
360 | * IMS request to revalidate a stale entry. | |
361 | */ | |
0655fa4d | 362 | void |
1d7ab0f4 | 363 | clientReplyContext::handleIMSReply(StoreIOBuffer result) |
0655fa4d | 364 | { |
1d7ab0f4 | 365 | if (deleting) |
366 | return; | |
62e76326 | 367 | |
bf8fe701 | 368 | debugs(88, 3, "handleIMSReply: " << http->storeEntry()->url() << ", " << (long unsigned) result.length << " bytes" ); |
62e76326 | 369 | |
1d7ab0f4 | 370 | if (http->storeEntry() == NULL) |
371 | return; | |
07947ad8 | 372 | |
1d7ab0f4 | 373 | if (result.flags.error && !EBIT_TEST(http->storeEntry()->flags, ENTRY_ABORTED)) |
374 | return; | |
62e76326 | 375 | |
1d7ab0f4 | 376 | /* update size of the request */ |
377 | reqsize = result.length + reqofs; | |
62e76326 | 378 | |
1d7ab0f4 | 379 | const http_status status = http->storeEntry()->getReply()->sline.status; |
62e76326 | 380 | |
1d7ab0f4 | 381 | // request to origin was aborted |
382 | if (EBIT_TEST(http->storeEntry()->flags, ENTRY_ABORTED)) { | |
bf8fe701 | 383 | debugs(88, 3, "handleIMSReply: request to origin aborted '" << http->storeEntry()->url() << "', sending old entry to client" ); |
7948b784 | 384 | http->logType = LOG_TCP_REFRESH_FAIL_OLD; |
1d7ab0f4 | 385 | sendClientOldEntry(); |
0655fa4d | 386 | } |
62e76326 | 387 | |
b297bcd0 | 388 | HttpReply *old_rep = (HttpReply *) old_entry->getReply(); |
62e76326 | 389 | |
b297bcd0 | 390 | // origin replied 304 |
b297bcd0 | 391 | if (status == HTTP_NOT_MODIFIED) { |
26ac0430 | 392 | http->logType = LOG_TCP_REFRESH_UNMODIFIED; |
450fe1cb | 393 | http->request->flags.staleIfHit = 0; // old_entry is no longer stale |
045a76ab | 394 | |
26ac0430 | 395 | // update headers on existing entry |
4802f60d | 396 | old_rep->updateOnNotModified(http->storeEntry()->getReply()); |
26ac0430 | 397 | old_entry->timestampsSet(); |
62e76326 | 398 | |
26ac0430 | 399 | // if client sent IMS |
62e76326 | 400 | |
45e5102d | 401 | if (http->request->flags.ims && !old_entry->modifiedSince(http->request)) { |
26ac0430 AJ |
402 | // forward the 304 from origin |
403 | debugs(88, 3, "handleIMSReply: origin replied 304, revalidating existing entry and forwarding 304 to client"); | |
404 | sendClientUpstreamResponse(); | |
405 | } else { | |
406 | // send existing entry, it's still valid | |
407 | debugs(88, 3, "handleIMSReply: origin replied 304, revalidating existing entry and sending " << | |
4802f60d | 408 | old_rep->sline.status << " to client"); |
26ac0430 AJ |
409 | sendClientOldEntry(); |
410 | } | |
b297bcd0 | 411 | } |
62e76326 | 412 | |
b297bcd0 HN |
413 | // origin replied with a non-error code |
414 | else if (status > HTTP_STATUS_NONE && status < HTTP_INTERNAL_SERVER_ERROR) { | |
26ac0430 AJ |
415 | // forward response from origin |
416 | http->logType = LOG_TCP_REFRESH_MODIFIED; | |
417 | debugs(88, 3, "handleIMSReply: origin replied " << status << ", replacing existing entry and forwarding to client"); | |
418 | sendClientUpstreamResponse(); | |
b297bcd0 | 419 | } |
62e76326 | 420 | |
b297bcd0 | 421 | // origin replied with an error |
450fe1cb | 422 | else if (http->request->flags.failOnValidationError) { |
7948b784 AR |
423 | http->logType = LOG_TCP_REFRESH_FAIL_ERR; |
424 | debugs(88, 3, "handleIMSReply: origin replied with error " << status << | |
425 | ", forwarding to client due to fail_on_validation_err"); | |
426 | sendClientUpstreamResponse(); | |
427 | } else { | |
26ac0430 | 428 | // ignore and let client have old entry |
7948b784 | 429 | http->logType = LOG_TCP_REFRESH_FAIL_OLD; |
26ac0430 AJ |
430 | debugs(88, 3, "handleIMSReply: origin replied with error " << |
431 | status << ", sending old entry (" << old_rep->sline.status << ") to client"); | |
432 | sendClientOldEntry(); | |
1d7ab0f4 | 433 | } |
edce4d98 | 434 | } |
435 | ||
82afb125 FC |
436 | SQUIDCEXTERN CSR clientGetMoreData; |
437 | SQUIDCEXTERN CSD clientReplyDetach; | |
edce4d98 | 438 | |
7d5f62a4 AJ |
439 | /** |
440 | * clientReplyContext::cacheHit Should only be called until the HTTP reply headers | |
edce4d98 | 441 | * have been parsed. Normally this should be a single call, but |
442 | * it might take more than one. As soon as we have the headers, | |
0655fa4d | 443 | * we hand off to clientSendMoreData, processExpired, or |
444 | * processMiss. | |
edce4d98 | 445 | */ |
446 | void | |
0655fa4d | 447 | clientReplyContext::CacheHit(void *data, StoreIOBuffer result) |
edce4d98 | 448 | { |
e6ccf245 | 449 | clientReplyContext *context = (clientReplyContext *)data; |
7d5f62a4 | 450 | context->cacheHit(result); |
0655fa4d | 451 | } |
452 | ||
7d5f62a4 AJ |
453 | /** |
454 | * Process a possible cache HIT. | |
455 | */ | |
0655fa4d | 456 | void |
457 | clientReplyContext::cacheHit(StoreIOBuffer result) | |
458 | { | |
7d5f62a4 | 459 | /** Ignore if the HIT object is being deleted. */ |
045a76ab | 460 | if (deleting) |
461 | return; | |
462 | ||
86a2f789 | 463 | StoreEntry *e = http->storeEntry(); |
045a76ab | 464 | |
190154cf | 465 | HttpRequest *r = http->request; |
045a76ab | 466 | |
4a7a3d56 | 467 | debugs(88, 3, "clientCacheHit: " << http->uri << ", " << result.length << " bytes"); |
62e76326 | 468 | |
86a2f789 | 469 | if (http->storeEntry() == NULL) { |
bf8fe701 | 470 | debugs(88, 3, "clientCacheHit: request aborted"); |
62e76326 | 471 | return; |
c8be6d7b | 472 | } else if (result.flags.error) { |
62e76326 | 473 | /* swap in failure */ |
bf8fe701 | 474 | debugs(88, 3, "clientCacheHit: swapin failure for " << http->uri); |
62e76326 | 475 | http->logType = LOG_TCP_SWAPFAIL_MISS; |
86a2f789 | 476 | removeClientStoreReference(&sc, http); |
0655fa4d | 477 | processMiss(); |
62e76326 | 478 | return; |
edce4d98 | 479 | } |
62e76326 | 480 | |
d3b3ab85 | 481 | if (result.length == 0) { |
62e76326 | 482 | /* the store couldn't get enough data from the file for us to id the |
483 | * object | |
484 | */ | |
485 | /* treat as a miss */ | |
486 | http->logType = LOG_TCP_MISS; | |
0655fa4d | 487 | processMiss(); |
62e76326 | 488 | return; |
d3b3ab85 | 489 | } |
62e76326 | 490 | |
edce4d98 | 491 | assert(!EBIT_TEST(e->flags, ENTRY_ABORTED)); |
492 | /* update size of the request */ | |
0655fa4d | 493 | reqsize = result.length + reqofs; |
62e76326 | 494 | |
edce4d98 | 495 | /* |
496 | * Got the headers, now grok them | |
497 | */ | |
29b8d8d6 | 498 | assert(http->logType == LOG_TCP_HIT); |
62e76326 | 499 | |
cdd4e1c1 | 500 | if (strcmp(e->mem_obj->url, urlCanonical(r)) != 0) { |
e0236918 | 501 | debugs(33, DBG_IMPORTANT, "clientProcessHit: URL mismatch, '" << e->mem_obj->url << "' != '" << urlCanonical(r) << "'"); |
cdd4e1c1 | 502 | processMiss(); |
503 | return; | |
504 | } | |
505 | ||
edce4d98 | 506 | switch (varyEvaluateMatch(e, r)) { |
62e76326 | 507 | |
edce4d98 | 508 | case VARY_NONE: |
62e76326 | 509 | /* No variance detected. Continue as normal */ |
510 | break; | |
511 | ||
edce4d98 | 512 | case VARY_MATCH: |
62e76326 | 513 | /* This is the correct entity for this request. Continue */ |
bf8fe701 | 514 | debugs(88, 2, "clientProcessHit: Vary MATCH!"); |
62e76326 | 515 | break; |
516 | ||
edce4d98 | 517 | case VARY_OTHER: |
62e76326 | 518 | /* This is not the correct entity for this request. We need |
519 | * to requery the cache. | |
520 | */ | |
86a2f789 | 521 | removeClientStoreReference(&sc, http); |
62e76326 | 522 | e = NULL; |
523 | /* Note: varyEvalyateMatch updates the request with vary information | |
524 | * so we only get here once. (it also takes care of cancelling loops) | |
525 | */ | |
26ac0430 | 526 | debugs(88, 2, "clientProcessHit: Vary detected!"); |
0655fa4d | 527 | clientGetMoreData(ourNode, http); |
62e76326 | 528 | return; |
529 | ||
edce4d98 | 530 | case VARY_CANCEL: |
62e76326 | 531 | /* varyEvaluateMatch found a object loop. Process as miss */ |
e0236918 | 532 | debugs(88, DBG_IMPORTANT, "clientProcessHit: Vary object loop!"); |
0655fa4d | 533 | processMiss(); |
62e76326 | 534 | return; |
edce4d98 | 535 | } |
62e76326 | 536 | |
c2a7cefd | 537 | if (r->method == Http::METHOD_PURGE) { |
86a2f789 | 538 | removeClientStoreReference(&sc, http); |
62e76326 | 539 | e = NULL; |
0655fa4d | 540 | purgeRequest(); |
62e76326 | 541 | return; |
edce4d98 | 542 | } |
62e76326 | 543 | |
45e5102d | 544 | if (e->checkNegativeHit() |
450fe1cb | 545 | && !r->flags.noCacheHack() |
36e6655b | 546 | ) { |
62e76326 | 547 | http->logType = LOG_TCP_NEGATIVE_HIT; |
0655fa4d | 548 | sendMoreData(result); |
bcfba8bd | 549 | } else if (!http->flags.internal && refreshCheckHTTP(e, r)) { |
bf8fe701 | 550 | debugs(88, 5, "clientCacheHit: in refreshCheck() block"); |
62e76326 | 551 | /* |
552 | * We hold a stale copy; it needs to be validated | |
553 | */ | |
554 | /* | |
450fe1cb | 555 | * The 'needValidation' flag is used to prevent forwarding |
62e76326 | 556 | * loops between siblings. If our copy of the object is stale, |
557 | * then we should probably only use parents for the validation | |
558 | * request. Otherwise two siblings could generate a loop if | |
559 | * both have a stale version of the object. | |
560 | */ | |
450fe1cb | 561 | r->flags.needValidation = 1; |
62e76326 | 562 | |
563 | if (e->lastmod < 0) { | |
564 | /* | |
565 | * Previous reply didn't have a Last-Modified header, | |
566 | * we cannot revalidate it. | |
567 | */ | |
568 | http->logType = LOG_TCP_MISS; | |
0655fa4d | 569 | processMiss(); |
450fe1cb | 570 | } else if (r->flags.noCache) { |
62e76326 | 571 | /* |
572 | * This did not match a refresh pattern that overrides no-cache | |
573 | * we should honour the client no-cache header. | |
574 | */ | |
575 | http->logType = LOG_TCP_CLIENT_REFRESH_MISS; | |
0655fa4d | 576 | processMiss(); |
0c3d3f65 | 577 | } else if (r->protocol == AnyP::PROTO_HTTP) { |
62e76326 | 578 | /* |
579 | * Object needs to be revalidated | |
580 | * XXX This could apply to FTP as well, if Last-Modified is known. | |
581 | */ | |
0655fa4d | 582 | processExpired(); |
62e76326 | 583 | } else { |
584 | /* | |
585 | * We don't know how to re-validate other protocols. Handle | |
586 | * them as if the object has expired. | |
587 | */ | |
588 | http->logType = LOG_TCP_MISS; | |
0655fa4d | 589 | processMiss(); |
62e76326 | 590 | } |
79c8035e AR |
591 | } else if (r->conditional()) |
592 | processConditional(result); | |
593 | else { | |
62e76326 | 594 | /* |
595 | * plain ol' cache hit | |
596 | */ | |
597 | ||
9a0a18de | 598 | #if USE_DELAY_POOLS |
ffdf45f2 | 599 | if (e->store_status != STORE_OK) |
849b826a | 600 | http->logType = LOG_TCP_MISS; |
5bf4d170 | 601 | else |
602 | #endif | |
26ac0430 AJ |
603 | if (e->mem_status == IN_MEMORY) |
604 | http->logType = LOG_TCP_MEM_HIT; | |
605 | else if (Config.onoff.offline) | |
606 | http->logType = LOG_TCP_OFFLINE_HIT; | |
62e76326 | 607 | |
0655fa4d | 608 | sendMoreData(result); |
edce4d98 | 609 | } |
610 | } | |
611 | ||
7d5f62a4 | 612 | /** |
edce4d98 | 613 | * Prepare to fetch the object as it's a cache miss of some kind. |
614 | */ | |
615 | void | |
0655fa4d | 616 | clientReplyContext::processMiss() |
edce4d98 | 617 | { |
edce4d98 | 618 | char *url = http->uri; |
190154cf | 619 | HttpRequest *r = http->request; |
edce4d98 | 620 | ErrorState *err = NULL; |
60745f24 | 621 | debugs(88, 4, "clientProcessMiss: '" << RequestMethodStr(r->method) << " " << url << "'"); |
7d5f62a4 AJ |
622 | |
623 | /** | |
edce4d98 | 624 | * We might have a left-over StoreEntry from a failed cache hit |
625 | * or IMS request. | |
626 | */ | |
86a2f789 | 627 | if (http->storeEntry()) { |
628 | if (EBIT_TEST(http->storeEntry()->flags, ENTRY_SPECIAL)) { | |
fa84c01d FC |
629 | debugs(88, DBG_CRITICAL, "clientProcessMiss: miss on a special object (" << url << ")."); |
630 | debugs(88, DBG_CRITICAL, "\tlog_type = " << Format::log_tags[http->logType]); | |
3900307b | 631 | http->storeEntry()->dump(1); |
62e76326 | 632 | } |
633 | ||
86a2f789 | 634 | removeClientStoreReference(&sc, http); |
edce4d98 | 635 | } |
62e76326 | 636 | |
7d5f62a4 | 637 | /** Check if its a PURGE request to be actioned. */ |
c2a7cefd | 638 | if (r->method == Http::METHOD_PURGE) { |
0655fa4d | 639 | purgeRequest(); |
62e76326 | 640 | return; |
edce4d98 | 641 | } |
914b89a2 | 642 | |
7d5f62a4 | 643 | /** Check if its an 'OTHER' request. Purge all cached entries if so and continue. */ |
c2a7cefd | 644 | if (r->method == Http::METHOD_OTHER) { |
26ac0430 | 645 | purgeAllCached(); |
60745f24 | 646 | } |
62e76326 | 647 | |
7d5f62a4 | 648 | /** Check if 'only-if-cached' flag is set. Action if so. */ |
0655fa4d | 649 | if (http->onlyIfCached()) { |
650 | processOnlyIfCachedMiss(); | |
62e76326 | 651 | return; |
edce4d98 | 652 | } |
62e76326 | 653 | |
42829656 | 654 | /// Deny loops |
450fe1cb | 655 | if (r->flags.loopDetected) { |
41ebd397 | 656 | http->al->http.code = HTTP_FORBIDDEN; |
73c36fd9 | 657 | err = clientBuildError(ERR_ACCESS_DENIED, HTTP_FORBIDDEN, NULL, http->getConn()->clientConnection->remote, http->request); |
f206b652 | 658 | createStoreEntry(r->method, RequestFlags()); |
86a2f789 | 659 | errorAppendEntry(http->storeEntry(), err); |
0655fa4d | 660 | triggerInitialStoreRead(); |
62e76326 | 661 | return; |
edce4d98 | 662 | } else { |
26ac0430 | 663 | assert(http->out.offset == 0); |
0655fa4d | 664 | createStoreEntry(r->method, r->flags); |
665 | triggerInitialStoreRead(); | |
62e76326 | 666 | |
667 | if (http->redirect.status) { | |
06a5ae20 | 668 | HttpReply *rep = new HttpReply; |
62e76326 | 669 | http->logType = LOG_TCP_REDIRECT; |
d88e3c49 | 670 | http->storeEntry()->releaseRequest(); |
06a5ae20 | 671 | rep->redirect(http->redirect.status, http->redirect.location); |
db237875 | 672 | http->storeEntry()->replaceHttpReply(rep); |
86a2f789 | 673 | http->storeEntry()->complete(); |
62e76326 | 674 | return; |
675 | } | |
676 | ||
7d5f62a4 | 677 | /** Check for internal requests. Update Protocol info if so. */ |
62e76326 | 678 | if (http->flags.internal) |
0c3d3f65 | 679 | r->protocol = AnyP::PROTO_INTERNAL; |
62e76326 | 680 | |
9174ba3d | 681 | assert(r->clientConnectionManager == http->getConn()); |
655daa06 | 682 | |
7d5f62a4 | 683 | /** Start forwarding to get the new object from network */ |
73c36fd9 | 684 | Comm::ConnectionPointer conn = http->getConn() != NULL ? http->getConn()->clientConnection : NULL; |
4bf68cfa | 685 | FwdState::Start(conn, http->storeEntry(), r, http->al); |
edce4d98 | 686 | } |
687 | } | |
688 | ||
7d5f62a4 | 689 | /** |
edce4d98 | 690 | * client issued a request with an only-if-cached cache-control directive; |
691 | * we did not find a cached object that can be returned without | |
692 | * contacting other servers; | |
693 | * respond with a 504 (Gateway Timeout) as suggested in [RFC 2068] | |
694 | */ | |
0655fa4d | 695 | void |
696 | clientReplyContext::processOnlyIfCachedMiss() | |
edce4d98 | 697 | { |
bf8fe701 | 698 | debugs(88, 4, "clientProcessOnlyIfCachedMiss: '" << |
60745f24 | 699 | RequestMethodStr(http->request->method) << " " << http->uri << "'"); |
41ebd397 | 700 | http->al->http.code = HTTP_GATEWAY_TIMEOUT; |
be364179 | 701 | ErrorState *err = clientBuildError(ERR_ONLY_IF_CACHED_MISS, HTTP_GATEWAY_TIMEOUT, NULL, |
73c36fd9 | 702 | http->getConn()->clientConnection->remote, http->request); |
86a2f789 | 703 | removeClientStoreReference(&sc, http); |
0655fa4d | 704 | startError(err); |
edce4d98 | 705 | } |
706 | ||
79c8035e AR |
707 | /// process conditional request from client |
708 | void | |
709 | clientReplyContext::processConditional(StoreIOBuffer &result) | |
710 | { | |
a2bd457d | 711 | StoreEntry *const e = http->storeEntry(); |
79c8035e AR |
712 | |
713 | if (e->getReply()->sline.status != HTTP_OK) { | |
714 | debugs(88, 4, "clientReplyContext::processConditional: Reply code " << | |
715 | e->getReply()->sline.status << " != 200"); | |
716 | http->logType = LOG_TCP_MISS; | |
717 | processMiss(); | |
718 | return; | |
719 | } | |
720 | ||
721 | HttpRequest &r = *http->request; | |
722 | ||
723 | if (r.header.has(HDR_IF_MATCH) && !e->hasIfMatchEtag(r)) { | |
724 | // RFC 2616: reply with 412 Precondition Failed if If-Match did not match | |
725 | sendPreconditionFailedError(); | |
726 | return; | |
727 | } | |
728 | ||
729 | bool matchedIfNoneMatch = false; | |
730 | if (r.header.has(HDR_IF_NONE_MATCH)) { | |
731 | if (!e->hasIfNoneMatchEtag(r)) { | |
732 | // RFC 2616: ignore IMS if If-None-Match did not match | |
45e5102d | 733 | r.flags.ims = 0; |
79c8035e AR |
734 | r.ims = -1; |
735 | r.imslen = 0; | |
736 | r.header.delById(HDR_IF_MODIFIED_SINCE); | |
737 | http->logType = LOG_TCP_MISS; | |
738 | sendMoreData(result); | |
739 | return; | |
740 | } | |
741 | ||
45e5102d | 742 | if (!r.flags.ims) { |
79c8035e | 743 | // RFC 2616: if If-None-Match matched and there is no IMS, |
a2bd457d AJ |
744 | // reply with 304 Not Modified or 412 Precondition Failed |
745 | sendNotModifiedOrPreconditionFailedError(); | |
79c8035e AR |
746 | return; |
747 | } | |
748 | ||
a2bd457d | 749 | // otherwise check IMS below to decide if we reply with 304 or 412 |
79c8035e AR |
750 | matchedIfNoneMatch = true; |
751 | } | |
752 | ||
45e5102d | 753 | if (r.flags.ims) { |
79c8035e AR |
754 | // handle If-Modified-Since requests from the client |
755 | if (e->modifiedSince(&r)) { | |
756 | http->logType = LOG_TCP_IMS_HIT; | |
757 | sendMoreData(result); | |
758 | return; | |
759 | } | |
760 | ||
761 | if (matchedIfNoneMatch) { | |
a2bd457d AJ |
762 | // If-None-Match matched, reply with 304 Not Modified or |
763 | // 412 Precondition Failed | |
764 | sendNotModifiedOrPreconditionFailedError(); | |
79c8035e AR |
765 | return; |
766 | } | |
767 | ||
768 | // otherwise reply with 304 Not Modified | |
a2bd457d | 769 | sendNotModified(); |
79c8035e AR |
770 | } |
771 | } | |
772 | ||
edce4d98 | 773 | void |
e6ccf245 | 774 | clientReplyContext::purgeRequestFindObjectToPurge() |
26ac0430 | 775 | { |
e6ccf245 | 776 | /* Try to find a base entry */ |
777 | http->flags.purging = 1; | |
778 | lookingforstore = 1; | |
26ac0430 AJ |
779 | |
780 | // TODO: can we use purgeAllCached() here instead of doing the | |
781 | // getPublicByRequestMethod() dance? | |
c2a7cefd | 782 | StoreEntry::getPublicByRequestMethod(this, http->request, Http::METHOD_GET); |
e6ccf245 | 783 | } |
784 | ||
c1520b67 AJ |
785 | // Purges all entries with a given url |
786 | // TODO: move to SideAgent parent, when we have one | |
60745f24 | 787 | /* |
788 | * We probably cannot purge Vary-affected responses because their MD5 | |
789 | * keys depend on vary headers. | |
790 | */ | |
c1520b67 | 791 | void |
90bd689c | 792 | purgeEntriesByUrl(HttpRequest * req, const char *url) |
c1520b67 | 793 | { |
8dceeee3 BR |
794 | #if USE_HTCP |
795 | bool get_or_head_sent = false; | |
796 | #endif | |
26ac0430 | 797 | |
c2a7cefd AJ |
798 | for (HttpRequestMethod m(Http::METHOD_NONE); m != Http::METHOD_ENUM_END; ++m) { |
799 | if (m.respMaybeCacheable()) { | |
c1520b67 AJ |
800 | if (StoreEntry *entry = storeGetPublic(url, m)) { |
801 | debugs(88, 5, "purging " << RequestMethodStr(m) << ' ' << url); | |
90bd689c | 802 | #if USE_HTCP |
8dceeee3 | 803 | neighborsHtcpClear(entry, url, req, m, HTCP_CLR_INVALIDATION); |
c2a7cefd | 804 | if (m == Http::METHOD_GET || m == Http::METHOD_HEAD) { |
8dceeee3 BR |
805 | get_or_head_sent = true; |
806 | } | |
90bd689c | 807 | #endif |
8dceeee3 | 808 | entry->release(); |
c1520b67 AJ |
809 | } |
810 | } | |
811 | } | |
8dceeee3 BR |
812 | |
813 | #if USE_HTCP | |
814 | if (!get_or_head_sent) { | |
c2a7cefd | 815 | neighborsHtcpClear(NULL, url, req, HttpRequestMethod(Http::METHOD_GET), HTCP_CLR_INVALIDATION); |
8dceeee3 BR |
816 | } |
817 | #endif | |
c1520b67 AJ |
818 | } |
819 | ||
26ac0430 | 820 | void |
60745f24 | 821 | clientReplyContext::purgeAllCached() |
822 | { | |
26ac0430 | 823 | const char *url = urlCanonical(http->request); |
90bd689c | 824 | purgeEntriesByUrl(http->request, url); |
35ececa5 | 825 | } |
60745f24 | 826 | |
e6ccf245 | 827 | void |
3b13a8fd | 828 | clientReplyContext::created(StoreEntry *newEntry) |
e6ccf245 | 829 | { |
830 | if (lookingforstore == 1) | |
62e76326 | 831 | purgeFoundGet(newEntry); |
e6ccf245 | 832 | else if (lookingforstore == 2) |
62e76326 | 833 | purgeFoundHead(newEntry); |
e6ccf245 | 834 | else if (lookingforstore == 3) |
62e76326 | 835 | purgeDoPurgeGet(newEntry); |
e6ccf245 | 836 | else if (lookingforstore == 4) |
62e76326 | 837 | purgeDoPurgeHead(newEntry); |
e6ccf245 | 838 | else if (lookingforstore == 5) |
62e76326 | 839 | identifyFoundObject(newEntry); |
e6ccf245 | 840 | } |
841 | ||
842 | void | |
3b13a8fd | 843 | clientReplyContext::purgeFoundGet(StoreEntry *newEntry) |
e6ccf245 | 844 | { |
845 | if (newEntry->isNull()) { | |
62e76326 | 846 | lookingforstore = 2; |
c2a7cefd | 847 | StoreEntry::getPublicByRequestMethod(this, http->request, Http::METHOD_HEAD); |
e6ccf245 | 848 | } else |
62e76326 | 849 | purgeFoundObject (newEntry); |
e6ccf245 | 850 | } |
851 | ||
852 | void | |
3b13a8fd | 853 | clientReplyContext::purgeFoundHead(StoreEntry *newEntry) |
e6ccf245 | 854 | { |
855 | if (newEntry->isNull()) | |
62e76326 | 856 | purgeDoMissPurge(); |
e6ccf245 | 857 | else |
62e76326 | 858 | purgeFoundObject (newEntry); |
e6ccf245 | 859 | } |
62e76326 | 860 | |
e6ccf245 | 861 | void |
3b13a8fd | 862 | clientReplyContext::purgeFoundObject(StoreEntry *entry) |
e6ccf245 | 863 | { |
864 | assert (entry && !entry->isNull()); | |
e4b9a2f0 | 865 | |
866 | if (EBIT_TEST(entry->flags, ENTRY_SPECIAL)) { | |
867 | http->logType = LOG_TCP_DENIED; | |
be364179 | 868 | ErrorState *err = clientBuildError(ERR_ACCESS_DENIED, HTTP_FORBIDDEN, NULL, |
73c36fd9 | 869 | http->getConn()->clientConnection->remote, http->request); |
e4b9a2f0 | 870 | startError(err); |
871 | return; | |
872 | } | |
873 | ||
8bcf08e0 | 874 | StoreIOBuffer localTempBuffer; |
62e76326 | 875 | /* Swap in the metadata */ |
86a2f789 | 876 | http->storeEntry(entry); |
34266cde | 877 | |
3d0ac046 | 878 | http->storeEntry()->lock(); |
3900307b | 879 | http->storeEntry()->createMemObject(http->uri, http->log_uri); |
34266cde | 880 | |
86a2f789 | 881 | http->storeEntry()->mem_obj->method = http->request->method; |
34266cde | 882 | |
86a2f789 | 883 | sc = storeClientListAdd(http->storeEntry(), this); |
34266cde | 884 | |
62e76326 | 885 | http->logType = LOG_TCP_HIT; |
34266cde | 886 | |
62e76326 | 887 | reqofs = 0; |
34266cde | 888 | |
8bcf08e0 | 889 | localTempBuffer.offset = http->out.offset; |
34266cde | 890 | |
8bcf08e0 | 891 | localTempBuffer.length = next()->readBuffer.length; |
34266cde | 892 | |
8bcf08e0 | 893 | localTempBuffer.data = next()->readBuffer.data; |
34266cde | 894 | |
86a2f789 | 895 | storeClientCopy(sc, http->storeEntry(), |
8bcf08e0 | 896 | localTempBuffer, CacheHit, this); |
e6ccf245 | 897 | } |
898 | ||
899 | void | |
900 | clientReplyContext::purgeRequest() | |
edce4d98 | 901 | { |
bf8fe701 | 902 | debugs(88, 3, "Config2.onoff.enable_purge = " << |
903 | Config2.onoff.enable_purge); | |
62e76326 | 904 | |
edce4d98 | 905 | if (!Config2.onoff.enable_purge) { |
62e76326 | 906 | http->logType = LOG_TCP_DENIED; |
73c36fd9 | 907 | ErrorState *err = clientBuildError(ERR_ACCESS_DENIED, HTTP_FORBIDDEN, NULL, http->getConn()->clientConnection->remote, http->request); |
0655fa4d | 908 | startError(err); |
62e76326 | 909 | return; |
edce4d98 | 910 | } |
62e76326 | 911 | |
edce4d98 | 912 | /* Release both IP cache */ |
cc192b50 | 913 | ipcacheInvalidate(http->request->GetHost()); |
edce4d98 | 914 | |
e6ccf245 | 915 | if (!http->flags.purging) |
62e76326 | 916 | purgeRequestFindObjectToPurge(); |
e6ccf245 | 917 | else |
62e76326 | 918 | purgeDoMissPurge(); |
e6ccf245 | 919 | } |
920 | ||
921 | void | |
922 | clientReplyContext::purgeDoMissPurge() | |
923 | { | |
29b8d8d6 | 924 | http->logType = LOG_TCP_MISS; |
e6ccf245 | 925 | lookingforstore = 3; |
c2a7cefd | 926 | StoreEntry::getPublicByRequestMethod(this,http->request, Http::METHOD_GET); |
e6ccf245 | 927 | } |
928 | ||
929 | void | |
3b13a8fd | 930 | clientReplyContext::purgeDoPurgeGet(StoreEntry *newEntry) |
e6ccf245 | 931 | { |
932 | assert (newEntry); | |
933 | /* Move to new() when that is created */ | |
934 | purgeStatus = HTTP_NOT_FOUND; | |
935 | ||
936 | if (!newEntry->isNull()) { | |
62e76326 | 937 | /* Release the cached URI */ |
bf8fe701 | 938 | debugs(88, 4, "clientPurgeRequest: GET '" << newEntry->url() << "'" ); |
8dceeee3 | 939 | #if USE_HTCP |
c2a7cefd | 940 | neighborsHtcpClear(newEntry, NULL, http->request, HttpRequestMethod(Http::METHOD_GET), HTCP_CLR_PURGE); |
8dceeee3 | 941 | #endif |
5f33b71d | 942 | newEntry->release(); |
62e76326 | 943 | purgeStatus = HTTP_OK; |
edce4d98 | 944 | } |
62e76326 | 945 | |
e6ccf245 | 946 | lookingforstore = 4; |
c2a7cefd | 947 | StoreEntry::getPublicByRequestMethod(this, http->request, Http::METHOD_HEAD); |
e6ccf245 | 948 | } |
949 | ||
950 | void | |
3b13a8fd | 951 | clientReplyContext::purgeDoPurgeHead(StoreEntry *newEntry) |
e6ccf245 | 952 | { |
4fc0ac76 | 953 | if (newEntry && !newEntry->isNull()) { |
bf8fe701 | 954 | debugs(88, 4, "clientPurgeRequest: HEAD '" << newEntry->url() << "'" ); |
8dceeee3 | 955 | #if USE_HTCP |
c2a7cefd | 956 | neighborsHtcpClear(newEntry, NULL, http->request, HttpRequestMethod(Http::METHOD_HEAD), HTCP_CLR_PURGE); |
8dceeee3 | 957 | #endif |
5f33b71d | 958 | newEntry->release(); |
62e76326 | 959 | purgeStatus = HTTP_OK; |
edce4d98 | 960 | } |
62e76326 | 961 | |
edce4d98 | 962 | /* And for Vary, release the base URI if none of the headers was included in the request */ |
62e76326 | 963 | |
edce4d98 | 964 | if (http->request->vary_headers |
62e76326 | 965 | && !strstr(http->request->vary_headers, "=")) { |
c2a7cefd | 966 | StoreEntry *entry = storeGetPublic(urlCanonical(http->request), Http::METHOD_GET); |
62e76326 | 967 | |
968 | if (entry) { | |
bf8fe701 | 969 | debugs(88, 4, "clientPurgeRequest: Vary GET '" << entry->url() << "'" ); |
8dceeee3 | 970 | #if USE_HTCP |
c2a7cefd | 971 | neighborsHtcpClear(entry, NULL, http->request, HttpRequestMethod(Http::METHOD_GET), HTCP_CLR_PURGE); |
8dceeee3 | 972 | #endif |
5f33b71d | 973 | entry->release(); |
62e76326 | 974 | purgeStatus = HTTP_OK; |
975 | } | |
976 | ||
c2a7cefd | 977 | entry = storeGetPublic(urlCanonical(http->request), Http::METHOD_HEAD); |
62e76326 | 978 | |
979 | if (entry) { | |
bf8fe701 | 980 | debugs(88, 4, "clientPurgeRequest: Vary HEAD '" << entry->url() << "'" ); |
8dceeee3 | 981 | #if USE_HTCP |
c2a7cefd | 982 | neighborsHtcpClear(entry, NULL, http->request, HttpRequestMethod(Http::METHOD_HEAD), HTCP_CLR_PURGE); |
8dceeee3 | 983 | #endif |
5f33b71d | 984 | entry->release(); |
62e76326 | 985 | purgeStatus = HTTP_OK; |
986 | } | |
edce4d98 | 987 | } |
62e76326 | 988 | |
edce4d98 | 989 | /* |
990 | * Make a new entry to hold the reply to be written | |
991 | * to the client. | |
992 | */ | |
528b2c61 | 993 | /* FIXME: This doesn't need to go through the store. Simply |
994 | * push down the client chain | |
995 | */ | |
f206b652 | 996 | createStoreEntry(http->request->method, RequestFlags()); |
62e76326 | 997 | |
0655fa4d | 998 | triggerInitialStoreRead(); |
62e76326 | 999 | |
7dc5f514 | 1000 | HttpReply *rep = new HttpReply; |
11992b6f | 1001 | rep->setHeaders(purgeStatus, NULL, NULL, 0, 0, -1); |
7dc5f514 | 1002 | http->storeEntry()->replaceHttpReply(rep); |
86a2f789 | 1003 | http->storeEntry()->complete(); |
edce4d98 | 1004 | } |
1005 | ||
1006 | void | |
0655fa4d | 1007 | clientReplyContext::traceReply(clientStreamNode * node) |
edce4d98 | 1008 | { |
076df709 | 1009 | clientStreamNode *nextNode = (clientStreamNode *)node->node.next->data; |
8bcf08e0 | 1010 | StoreIOBuffer localTempBuffer; |
f206b652 | 1011 | createStoreEntry(http->request->method, RequestFlags()); |
076df709 FC |
1012 | localTempBuffer.offset = nextNode->readBuffer.offset + headers_sz; |
1013 | localTempBuffer.length = nextNode->readBuffer.length; | |
1014 | localTempBuffer.data = nextNode->readBuffer.data; | |
86a2f789 | 1015 | storeClientCopy(sc, http->storeEntry(), |
8bcf08e0 | 1016 | localTempBuffer, SendMoreData, this); |
d88e3c49 | 1017 | http->storeEntry()->releaseRequest(); |
3900307b | 1018 | http->storeEntry()->buffer(); |
7dc5f514 | 1019 | HttpReply *rep = new HttpReply; |
11992b6f | 1020 | rep->setHeaders(HTTP_OK, NULL, "text/plain", http->request->prefixLen(), 0, squid_curtime); |
db237875 | 1021 | http->storeEntry()->replaceHttpReply(rep); |
5cafad19 | 1022 | http->request->swapOut(http->storeEntry()); |
86a2f789 | 1023 | http->storeEntry()->complete(); |
edce4d98 | 1024 | } |
1025 | ||
1026 | #define SENDING_BODY 0 | |
1027 | #define SENDING_HDRSONLY 1 | |
1028 | int | |
0655fa4d | 1029 | clientReplyContext::checkTransferDone() |
edce4d98 | 1030 | { |
86a2f789 | 1031 | StoreEntry *entry = http->storeEntry(); |
62e76326 | 1032 | |
edce4d98 | 1033 | if (entry == NULL) |
62e76326 | 1034 | return 0; |
1035 | ||
1036 | /* | |
edce4d98 | 1037 | * For now, 'done_copying' is used for special cases like |
1038 | * Range and HEAD requests. | |
1039 | */ | |
0655fa4d | 1040 | if (http->flags.done_copying) |
62e76326 | 1041 | return 1; |
1042 | ||
450fe1cb | 1043 | if (http->request->flags.chunkedReply && !flags.complete) { |
4ad60609 AR |
1044 | // last-chunk was not sent |
1045 | return 0; | |
1046 | } | |
1047 | ||
edce4d98 | 1048 | /* |
1049 | * Handle STORE_OK objects. | |
1050 | * objectLen(entry) will be set proprely. | |
26ac0430 | 1051 | * RC: Does objectLen(entry) include the Headers? |
0e3be1ea | 1052 | * RC: Yes. |
edce4d98 | 1053 | */ |
1054 | if (entry->store_status == STORE_OK) { | |
0655fa4d | 1055 | return storeOKTransferDone(); |
e39b9382 | 1056 | } else { |
0655fa4d | 1057 | return storeNotOKTransferDone(); |
edce4d98 | 1058 | } |
e39b9382 | 1059 | } |
1060 | ||
1061 | int | |
1062 | clientReplyContext::storeOKTransferDone() const | |
1063 | { | |
aa1a691e AR |
1064 | assert(http->storeEntry()->objectLen() >= 0); |
1065 | assert(http->storeEntry()->objectLen() >= headers_sz); | |
47f6e231 | 1066 | if (http->out.offset >= http->storeEntry()->objectLen() - headers_sz) { |
26ac0430 AJ |
1067 | debugs(88,3,HERE << "storeOKTransferDone " << |
1068 | " out.offset=" << http->out.offset << | |
1069 | " objectLen()=" << http->storeEntry()->objectLen() << | |
1070 | " headers_sz=" << headers_sz); | |
62e76326 | 1071 | return 1; |
47f6e231 | 1072 | } |
62e76326 | 1073 | |
e39b9382 | 1074 | return 0; |
1075 | } | |
1076 | ||
1077 | int | |
1078 | clientReplyContext::storeNotOKTransferDone() const | |
1079 | { | |
edce4d98 | 1080 | /* |
1081 | * Now, handle STORE_PENDING objects | |
1082 | */ | |
86a2f789 | 1083 | MemObject *mem = http->storeEntry()->mem_obj; |
edce4d98 | 1084 | assert(mem != NULL); |
1085 | assert(http->request != NULL); | |
0e3be1ea | 1086 | /* mem->reply was wrong because it uses the UPSTREAM header length!!! */ |
8bcf08e0 | 1087 | HttpReply const *curReply = mem->getReply(); |
62e76326 | 1088 | |
e39b9382 | 1089 | if (headers_sz == 0) |
62e76326 | 1090 | /* haven't found end of headers yet */ |
1091 | return 0; | |
e39b9382 | 1092 | |
edce4d98 | 1093 | /* |
1094 | * Figure out how much data we are supposed to send. | |
1095 | * If we are sending a body and we don't have a content-length, | |
1096 | * then we must wait for the object to become STORE_OK. | |
1097 | */ | |
8bcf08e0 | 1098 | if (curReply->content_length < 0) |
62e76326 | 1099 | return 0; |
e39b9382 | 1100 | |
8bcf08e0 | 1101 | int64_t expectedLength = curReply->content_length + http->out.headers_sz; |
62e76326 | 1102 | |
e39b9382 | 1103 | if (http->out.size < expectedLength) |
62e76326 | 1104 | return 0; |
47f6e231 | 1105 | else { |
26ac0430 AJ |
1106 | debugs(88,3,HERE << "storeNotOKTransferDone " << |
1107 | " out.size=" << http->out.size << | |
1108 | " expectedLength=" << expectedLength); | |
62e76326 | 1109 | return 1; |
47f6e231 | 1110 | } |
edce4d98 | 1111 | } |
1112 | ||
edce4d98 | 1113 | /* A write has completed, what is the next status based on the |
1114 | * canonical request data? | |
1115 | * 1 something is wrong | |
1116 | * 0 nothing is wrong. | |
1117 | * | |
1118 | */ | |
1119 | int | |
59a1efb2 | 1120 | clientHttpRequestStatus(int fd, ClientHttpRequest const *http) |
edce4d98 | 1121 | { |
062f7f4e FC |
1122 | #if SIZEOF_INT64_T == 4 |
1123 | if (http->out.size > 0x7FFF0000) { | |
e0236918 FC |
1124 | debugs(88, DBG_IMPORTANT, "WARNING: closing FD " << fd << " to prevent out.size counter overflow"); |
1125 | debugs(88, DBG_IMPORTANT, "\tclient " << http->getConn()->peer); | |
1126 | debugs(88, DBG_IMPORTANT, "\treceived " << http->out.size << " bytes"); | |
1127 | debugs(88, DBG_IMPORTANT, "\tURI " << http->log_uri); | |
062f7f4e FC |
1128 | return 1; |
1129 | } | |
1130 | ||
1131 | if (http->out.offset > 0x7FFF0000) { | |
e0236918 FC |
1132 | debugs(88, DBG_IMPORTANT, "WARNING: closing FD " << fd < " to prevent out.offset counter overflow"); |
1133 | debugs(88, DBG_IMPORTANT, "\tclient " << http->getConn()->peer); | |
1134 | debugs(88, DBG_IMPORTANT, "\treceived " << http->out.size << " bytes, offset " << http->out.offset); | |
1135 | debugs(88, DBG_IMPORTANT, "\tURI " << http->log_uri); | |
062f7f4e FC |
1136 | return 1; |
1137 | } | |
1138 | ||
1139 | #endif | |
edce4d98 | 1140 | return 0; |
1141 | } | |
1142 | ||
62e76326 | 1143 | /* Preconditions: |
edce4d98 | 1144 | * *http is a valid structure. |
1145 | * fd is either -1, or an open fd. | |
1146 | * | |
1147 | * TODO: enumify this | |
1148 | * | |
1149 | * This function is used by any http request sink, to determine the status | |
1150 | * of the object. | |
1151 | */ | |
1152 | clientStream_status_t | |
59a1efb2 | 1153 | clientReplyStatus(clientStreamNode * aNode, ClientHttpRequest * http) |
edce4d98 | 1154 | { |
0655fa4d | 1155 | clientReplyContext *context = dynamic_cast<clientReplyContext *>(aNode->data.getRaw()); |
1156 | assert (context); | |
1157 | assert (context->http == http); | |
1158 | return context->replyStatus(); | |
1159 | } | |
1160 | ||
1161 | clientStream_status_t | |
1162 | clientReplyContext::replyStatus() | |
1163 | { | |
edce4d98 | 1164 | int done; |
1165 | /* Here because lower nodes don't need it */ | |
62e76326 | 1166 | |
3daaed1a | 1167 | if (http->storeEntry() == NULL) { |
1168 | debugs(88, 5, "clientReplyStatus: no storeEntry"); | |
62e76326 | 1169 | return STREAM_FAILED; /* yuck, but what can we do? */ |
3daaed1a | 1170 | } |
62e76326 | 1171 | |
3daaed1a | 1172 | if (EBIT_TEST(http->storeEntry()->flags, ENTRY_ABORTED)) { |
62e76326 | 1173 | /* TODO: Could upstream read errors (result.flags.error) be |
1174 | * lost, and result in undersize requests being considered | |
1175 | * complete. Should we tcp reset such connections ? | |
1176 | */ | |
3daaed1a | 1177 | debugs(88, 5, "clientReplyStatus: aborted storeEntry"); |
62e76326 | 1178 | return STREAM_FAILED; |
3daaed1a | 1179 | } |
62e76326 | 1180 | |
0655fa4d | 1181 | if ((done = checkTransferDone()) != 0 || flags.complete) { |
bf8fe701 | 1182 | debugs(88, 5, "clientReplyStatus: transfer is DONE"); |
62e76326 | 1183 | /* Ok we're finished, but how? */ |
1184 | ||
4ad60609 AR |
1185 | const int64_t expectedBodySize = |
1186 | http->storeEntry()->getReply()->bodySize(http->request->method); | |
450fe1cb | 1187 | if (!http->request->flags.proxyKeepalive && expectedBodySize < 0) { |
bf8fe701 | 1188 | debugs(88, 5, "clientReplyStatus: closing, content_length < 0"); |
62e76326 | 1189 | return STREAM_FAILED; |
1190 | } | |
1191 | ||
1192 | if (!done) { | |
bf8fe701 | 1193 | debugs(88, 5, "clientReplyStatus: closing, !done, but read 0 bytes"); |
62e76326 | 1194 | return STREAM_FAILED; |
1195 | } | |
1196 | ||
4ad60609 | 1197 | if (expectedBodySize >= 0 && !http->gotEnough()) { |
bf8fe701 | 1198 | debugs(88, 5, "clientReplyStatus: client didn't get all it expected"); |
62e76326 | 1199 | return STREAM_UNPLANNED_COMPLETE; |
1200 | } | |
1201 | ||
450fe1cb | 1202 | if (http->request->flags.proxyKeepalive) { |
bf8fe701 | 1203 | debugs(88, 5, "clientReplyStatus: stream complete and can keepalive"); |
62e76326 | 1204 | return STREAM_COMPLETE; |
1205 | } | |
1206 | ||
bf8fe701 | 1207 | debugs(88, 5, "clientReplyStatus: stream was not expected to complete!"); |
62e76326 | 1208 | return STREAM_UNPLANNED_COMPLETE; |
edce4d98 | 1209 | } |
62e76326 | 1210 | |
16611143 | 1211 | // XXX: Should this be checked earlier? We could return above w/o checking. |
1212 | if (reply->receivedBodyTooLarge(*http->request, http->out.offset - 4096)) { | |
b51aec66 | 1213 | /* 4096 is a margin for the HTTP headers included in out.offset */ |
bf8fe701 | 1214 | debugs(88, 5, "clientReplyStatus: client reply body is too large"); |
62e76326 | 1215 | return STREAM_FAILED; |
0e3be1ea | 1216 | } |
62e76326 | 1217 | |
edce4d98 | 1218 | return STREAM_NONE; |
1219 | } | |
1220 | ||
62e76326 | 1221 | /* Responses with no body will not have a content-type header, |
edce4d98 | 1222 | * which breaks the rep_mime_type acl, which |
1223 | * coincidentally, is the most common acl for reply access lists. | |
1224 | * A better long term fix for this is to allow acl matchs on the various | |
26ac0430 AJ |
1225 | * status codes, and then supply a default ruleset that puts these |
1226 | * codes before any user defines access entries. That way the user | |
edce4d98 | 1227 | * can choose to block these responses where appropriate, but won't get |
1228 | * mysterious breakages. | |
1229 | */ | |
0655fa4d | 1230 | bool |
1231 | clientReplyContext::alwaysAllowResponse(http_status sline) const | |
edce4d98 | 1232 | { |
4ef4b952 | 1233 | bool result; |
1234 | ||
edce4d98 | 1235 | switch (sline) { |
62e76326 | 1236 | |
edce4d98 | 1237 | case HTTP_CONTINUE: |
62e76326 | 1238 | |
edce4d98 | 1239 | case HTTP_SWITCHING_PROTOCOLS: |
62e76326 | 1240 | |
edce4d98 | 1241 | case HTTP_PROCESSING: |
62e76326 | 1242 | |
edce4d98 | 1243 | case HTTP_NO_CONTENT: |
62e76326 | 1244 | |
edce4d98 | 1245 | case HTTP_NOT_MODIFIED: |
4ef4b952 | 1246 | result = true; |
62e76326 | 1247 | break; |
1248 | ||
edce4d98 | 1249 | default: |
4ef4b952 | 1250 | result = false; |
edce4d98 | 1251 | } |
4ef4b952 | 1252 | |
1253 | return result; | |
edce4d98 | 1254 | } |
1255 | ||
a5c8d64d AJ |
1256 | /** |
1257 | * Generate the reply headers sent to client. | |
1258 | * | |
1259 | * Filters out unwanted entries and hop-by-hop from original reply header | |
1260 | * then adds extra entries if we have more info than origin server | |
1261 | * then adds Squid specific entries | |
edce4d98 | 1262 | */ |
0655fa4d | 1263 | void |
1264 | clientReplyContext::buildReplyHeader() | |
edce4d98 | 1265 | { |
7dc5f514 | 1266 | HttpHeader *hdr = &reply->header; |
c8be6d7b | 1267 | int is_hit = logTypeIsATcpHit(http->logType); |
190154cf | 1268 | HttpRequest *request = http->request; |
edce4d98 | 1269 | #if DONT_FILTER_THESE |
1270 | /* but you might want to if you run Squid as an HTTP accelerator */ | |
a9925b40 | 1271 | /* hdr->delById(HDR_ACCEPT_RANGES); */ |
1272 | hdr->delById(HDR_ETAG); | |
edce4d98 | 1273 | #endif |
62e76326 | 1274 | |
edce4d98 | 1275 | if (is_hit) |
a9925b40 | 1276 | hdr->delById(HDR_SET_COOKIE); |
f89d4012 | 1277 | // TODO: RFC 2965 : Must honour Cache-Control: no-cache="set-cookie2" and remove header. |
62e76326 | 1278 | |
23c6d7e7 | 1279 | // if there is not configured a peer proxy with login=PASS or login=PASSTHRU option enabled |
dcf3665b | 1280 | // remove the Proxy-Authenticate header |
23c6d7e7 | 1281 | if ( !request->peer_login || (strcmp(request->peer_login,"PASS") != 0 && strcmp(request->peer_login,"PASSTHRU") != 0)) |
26ac0430 | 1282 | reply->header.delById(HDR_PROXY_AUTHENTICATE); |
dcf3665b | 1283 | |
2cdeea82 | 1284 | reply->header.removeHopByHopEntries(); |
62e76326 | 1285 | |
1286 | // if (request->range) | |
7dc5f514 | 1287 | // clientBuildRangeHeader(http, reply); |
a5c8d64d | 1288 | |
edce4d98 | 1289 | /* |
1290 | * Add a estimated Age header on cache hits. | |
1291 | */ | |
1292 | if (is_hit) { | |
62e76326 | 1293 | /* |
1294 | * Remove any existing Age header sent by upstream caches | |
1295 | * (note that the existing header is passed along unmodified | |
1296 | * on cache misses) | |
1297 | */ | |
a9925b40 | 1298 | hdr->delById(HDR_AGE); |
62e76326 | 1299 | /* |
1300 | * This adds the calculated object age. Note that the details of the | |
1301 | * age calculation is performed by adjusting the timestamp in | |
3900307b | 1302 | * StoreEntry::timestampsSet(), not here. |
62e76326 | 1303 | */ |
a5c8d64d AJ |
1304 | #if DEAD_CODE |
1305 | // XXX: realy useless? or is there a bug now that this is detatched from the below if-sequence ? | |
1306 | // looks like this pre-if was supposed to be the browser workaround... | |
86a2f789 | 1307 | if (NULL == http->storeEntry()) |
62e76326 | 1308 | (void) 0; |
86a2f789 | 1309 | else if (http->storeEntry()->timestamp < 0) |
62e76326 | 1310 | (void) 0; |
a5c8d64d | 1311 | #endif |
bbe58ab5 | 1312 | |
1313 | if (EBIT_TEST(http->storeEntry()->flags, ENTRY_SPECIAL)) { | |
a9925b40 | 1314 | hdr->delById(HDR_DATE); |
1315 | hdr->insertTime(HDR_DATE, squid_curtime); | |
90fa5816 AJ |
1316 | } else if (http->getConn() && http->getConn()->port->actAsOrigin) { |
1317 | // Swap the Date: header to current time if we are simulating an origin | |
fd49b08b A |
1318 | HttpHeaderEntry *h = hdr->findEntry(HDR_DATE); |
1319 | if (h) | |
1320 | hdr->putExt("X-Origin-Date", h->value.termedBuf()); | |
90fa5816 AJ |
1321 | hdr->delById(HDR_DATE); |
1322 | hdr->insertTime(HDR_DATE, squid_curtime); | |
fd49b08b A |
1323 | h = hdr->findEntry(HDR_EXPIRES); |
1324 | if (h && http->storeEntry()->expires >= 0) { | |
1325 | hdr->putExt("X-Origin-Expires", h->value.termedBuf()); | |
1326 | hdr->delById(HDR_EXPIRES); | |
1327 | hdr->insertTime(HDR_EXPIRES, squid_curtime + http->storeEntry()->expires - http->storeEntry()->timestamp); | |
1328 | } | |
90fa5816 AJ |
1329 | if (http->storeEntry()->timestamp <= squid_curtime) { |
1330 | // put X-Cache-Age: instead of Age: | |
fd49b08b A |
1331 | char age[64]; |
1332 | snprintf(age, sizeof(age), "%ld", (long int) squid_curtime - http->storeEntry()->timestamp); | |
1333 | hdr->putExt("X-Cache-Age", age); | |
1334 | } | |
a81e7089 | 1335 | } else if (http->storeEntry()->timestamp <= squid_curtime) { |
a9925b40 | 1336 | hdr->putInt(HDR_AGE, |
1337 | squid_curtime - http->storeEntry()->timestamp); | |
62e76326 | 1338 | /* Signal old objects. NB: rfc 2616 is not clear, |
1339 | * by implication, on whether we should do this to all | |
1340 | * responses, or only cache hits. | |
1341 | * 14.46 states it ONLY applys for heuristically caclulated | |
1342 | * freshness values, 13.2.4 doesn't specify the same limitation. | |
1343 | * We interpret RFC 2616 under the combination. | |
1344 | */ | |
1345 | /* TODO: if maxage or s-maxage is present, don't do this */ | |
1346 | ||
86a2f789 | 1347 | if (squid_curtime - http->storeEntry()->timestamp >= 86400) { |
8bcf08e0 FC |
1348 | char tbuf[512]; |
1349 | snprintf (tbuf, sizeof(tbuf), "%s %s %s", | |
62e76326 | 1350 | "113", ThisCache, |
1351 | "This cache hit is still fresh and more than 1 day old"); | |
8bcf08e0 | 1352 | hdr->putStr(HDR_WARNING, tbuf); |
62e76326 | 1353 | } |
1354 | } | |
a5c8d64d | 1355 | } |
528b2c61 | 1356 | |
a5c8d64d AJ |
1357 | /* RFC 2616: Section 14.18 |
1358 | * | |
1359 | * Add a Date: header if missing. | |
1360 | * We have access to a clock therefore are required to amend any shortcoming in servers. | |
1361 | * | |
1362 | * NP: done after Age: to prevent ENTRY_SPECIAL double-handling this header. | |
1363 | */ | |
1364 | if ( !hdr->has(HDR_DATE) ) { | |
f0dedeb5 | 1365 | if (!http->storeEntry()) |
a5c8d64d | 1366 | hdr->insertTime(HDR_DATE, squid_curtime); |
f0dedeb5 AJ |
1367 | else if (http->storeEntry()->timestamp > 0) |
1368 | hdr->insertTime(HDR_DATE, http->storeEntry()->timestamp); | |
1369 | else { | |
d9d98242 | 1370 | debugs(88,DBG_IMPORTANT,"BUG 3279: HTTP reply without Date:"); |
e78ae89a AJ |
1371 | /* dump something useful about the problem */ |
1372 | http->storeEntry()->dump(DBG_IMPORTANT); | |
f0dedeb5 | 1373 | } |
edce4d98 | 1374 | } |
62e76326 | 1375 | |
bcfba8bd | 1376 | // add Warnings required by RFC 2616 if serving a stale hit |
450fe1cb | 1377 | if (http->request->flags.staleIfHit && logTypeIsATcpHit(http->logType)) { |
bcfba8bd | 1378 | hdr->putWarning(110, "Response is stale"); |
450fe1cb | 1379 | if (http->request->flags.needValidation) |
bcfba8bd AR |
1380 | hdr->putWarning(111, "Revalidation failed"); |
1381 | } | |
1382 | ||
0bd9aa82 | 1383 | /* Filter unproxyable authentication types */ |
ddd31ed3 | 1384 | if (http->logType != LOG_TCP_DENIED && |
d67acb4e | 1385 | hdr->has(HDR_WWW_AUTHENTICATE)) { |
62e76326 | 1386 | HttpHeaderPos pos = HttpHeaderInitPos; |
1387 | HttpHeaderEntry *e; | |
1388 | ||
26ac0430 | 1389 | int connection_auth_blocked = 0; |
a9925b40 | 1390 | while ((e = hdr->getEntry(&pos))) { |
d67acb4e | 1391 | if (e->id == HDR_WWW_AUTHENTICATE) { |
5b4117d8 | 1392 | const char *value = e->value.rawBuf(); |
62e76326 | 1393 | |
1394 | if ((strncasecmp(value, "NTLM", 4) == 0 && | |
1395 | (value[4] == '\0' || value[4] == ' ')) | |
1396 | || | |
1397 | (strncasecmp(value, "Negotiate", 9) == 0 && | |
d67acb4e | 1398 | (value[9] == '\0' || value[9] == ' ')) |
26ac0430 AJ |
1399 | || |
1400 | (strncasecmp(value, "Kerberos", 8) == 0 && | |
1401 | (value[8] == '\0' || value[8] == ' '))) { | |
450fe1cb | 1402 | if (request->flags.connectionAuthDisabled) { |
26ac0430 | 1403 | hdr->delAt(pos, connection_auth_blocked); |
d67acb4e AJ |
1404 | continue; |
1405 | } | |
450fe1cb | 1406 | request->flags.mustKeepalive = 1; |
45e5102d | 1407 | if (!request->flags.accelerated && !request->flags.intercepted) { |
d67acb4e | 1408 | httpHeaderPutStrf(hdr, HDR_PROXY_SUPPORT, "Session-Based-Authentication"); |
26ac0430 AJ |
1409 | /* |
1410 | We send "[Proxy-]Connection: Proxy-Support" header to mark | |
1411 | Proxy-Support as a hop-by-hop header for intermediaries that do not | |
1412 | understand the semantics of this header. The RFC should have included | |
1413 | this recommendation. | |
1414 | */ | |
d67acb4e AJ |
1415 | httpHeaderPutStrf(hdr, HDR_CONNECTION, "Proxy-support"); |
1416 | } | |
1417 | break; | |
26ac0430 | 1418 | } |
62e76326 | 1419 | } |
1420 | } | |
d67acb4e AJ |
1421 | |
1422 | if (connection_auth_blocked) | |
ba9fb01d | 1423 | hdr->refreshMask(); |
0bd9aa82 | 1424 | } |
62e76326 | 1425 | |
2f1431ea | 1426 | #if USE_AUTH |
edce4d98 | 1427 | /* Handle authentication headers */ |
26ac0430 AJ |
1428 | if (http->logType == LOG_TCP_DENIED && |
1429 | ( reply->sline.status == HTTP_PROXY_AUTHENTICATION_REQUIRED || | |
1430 | reply->sline.status == HTTP_UNAUTHORIZED) | |
1431 | ) { | |
1432 | /* Add authentication header */ | |
1433 | /*! \todo alter errorstate to be accel on|off aware. The 0 on the next line | |
1434 | * depends on authenticate behaviour: all schemes to date send no extra | |
1435 | * data on 407/401 responses, and do not check the accel state on 401/407 | |
1436 | * responses | |
1437 | */ | |
1438 | authenticateFixHeader(reply, request->auth_user_request, request, 0, 1); | |
a33a428a AJ |
1439 | } else if (request->auth_user_request != NULL) |
1440 | authenticateFixHeader(reply, request->auth_user_request, request, http->flags.accel, 0); | |
2f1431ea | 1441 | #endif |
62e76326 | 1442 | |
edce4d98 | 1443 | /* Append X-Cache */ |
1444 | httpHeaderPutStrf(hdr, HDR_X_CACHE, "%s from %s", | |
62e76326 | 1445 | is_hit ? "HIT" : "MISS", getMyHostname()); |
1446 | ||
edce4d98 | 1447 | #if USE_CACHE_DIGESTS |
1448 | /* Append X-Cache-Lookup: -- temporary hack, to be removed @?@ @?@ */ | |
1449 | httpHeaderPutStrf(hdr, HDR_X_CACHE_LOOKUP, "%s from %s:%d", | |
0655fa4d | 1450 | lookup_type ? lookup_type : "NONE", |
62e76326 | 1451 | getMyHostname(), getMyPort()); |
1452 | ||
edce4d98 | 1453 | #endif |
62e76326 | 1454 | |
45e5102d | 1455 | const bool maySendChunkedReply = !request->multipartRangeRequest() && |
f7701e72 | 1456 | reply->sline.protocol == AnyP::PROTO_HTTP && // response is HTTP |
4cb2536f | 1457 | (request->http_ver >= HttpVersion(1, 1)); |
4ad60609 | 1458 | |
f529bb20 | 1459 | /* Check whether we should send keep-alive */ |
450fe1cb | 1460 | if (!Config.onoff.error_pconns && reply->sline.status >= 400 && !request->flags.mustKeepalive) { |
bf8fe701 | 1461 | debugs(33, 3, "clientBuildReplyHeader: Error, don't keep-alive"); |
450fe1cb FC |
1462 | request->flags.proxyKeepalive = 0; |
1463 | } else if (!Config.onoff.client_pconns && !request->flags.mustKeepalive) { | |
17b57873 | 1464 | debugs(33, 2, "clientBuildReplyHeader: Connection Keep-Alive not requested by admin or client"); |
450fe1cb FC |
1465 | request->flags.proxyKeepalive = 0; |
1466 | } else if (request->flags.proxyKeepalive && shutting_down) { | |
f529bb20 | 1467 | debugs(88, 3, "clientBuildReplyHeader: Shutting down, don't keep-alive."); |
450fe1cb FC |
1468 | request->flags.proxyKeepalive = 0; |
1469 | } else if (request->flags.connectionAuth && !reply->keep_alive) { | |
26ac0430 | 1470 | debugs(33, 2, "clientBuildReplyHeader: Connection oriented auth but server side non-persistent"); |
450fe1cb | 1471 | request->flags.proxyKeepalive = 0; |
4ad60609 | 1472 | } else if (reply->bodySize(request->method) < 0 && !maySendChunkedReply) { |
17b57873 | 1473 | debugs(88, 3, "clientBuildReplyHeader: can't keep-alive, unknown body size" ); |
450fe1cb FC |
1474 | request->flags.proxyKeepalive = 0; |
1475 | } else if (fdUsageHigh()&& !request->flags.mustKeepalive) { | |
17b57873 | 1476 | debugs(88, 3, "clientBuildReplyHeader: Not many unused FDs, can't keep-alive"); |
450fe1cb FC |
1477 | request->flags.proxyKeepalive = 0; |
1478 | } else if (request->flags.sslBumped && !reply->persistent()) { | |
49f1c7f7 AR |
1479 | // We do not really have to close, but we pretend we are a tunnel. |
1480 | debugs(88, 3, "clientBuildReplyHeader: bumped reply forces close"); | |
450fe1cb | 1481 | request->flags.proxyKeepalive = 0; |
17b57873 | 1482 | } |
d67acb4e | 1483 | |
4ad60609 AR |
1484 | // Decide if we send chunked reply |
1485 | if (maySendChunkedReply && | |
450fe1cb | 1486 | request->flags.proxyKeepalive && |
4cb2536f | 1487 | reply->bodySize(request->method) < 0) { |
4ad60609 | 1488 | debugs(88, 3, "clientBuildReplyHeader: chunked reply"); |
450fe1cb | 1489 | request->flags.chunkedReply = 1; |
4ad60609 AR |
1490 | hdr->putStr(HDR_TRANSFER_ENCODING, "chunked"); |
1491 | } | |
f529bb20 | 1492 | |
4dea3fdd | 1493 | /* Append VIA */ |
92caea77 | 1494 | if (Config.onoff.via) { |
62e76326 | 1495 | LOCAL_ARRAY(char, bbuf, MAX_URL + 32); |
30abd221 | 1496 | String strVia; |
26ac0430 | 1497 | hdr->getList(HDR_VIA, &strVia); |
88331887 | 1498 | snprintf(bbuf, MAX_URL + 32, "%d.%d %s", |
7dc5f514 | 1499 | reply->sline.version.major, |
1500 | reply->sline.version.minor, | |
62e76326 | 1501 | ThisCache); |
1502 | strListAdd(&strVia, bbuf, ','); | |
a9925b40 | 1503 | hdr->delById(HDR_VIA); |
5b4117d8 | 1504 | hdr->putStr(HDR_VIA, strVia.termedBuf()); |
c8be6d7b | 1505 | } |
95e78500 | 1506 | /* Signal keep-alive or close explicitly */ |
450fe1cb | 1507 | hdr->putStr(HDR_CONNECTION, request->flags.proxyKeepalive ? "keep-alive" : "close"); |
62e76326 | 1508 | |
edce4d98 | 1509 | #if ADD_X_REQUEST_URI |
1510 | /* | |
1511 | * Knowing the URI of the request is useful when debugging persistent | |
1512 | * connections in a client; we cannot guarantee the order of http headers, | |
1513 | * but X-Request-URI is likely to be the very last header to ease use from a | |
1514 | * debugger [hdr->entries.count-1]. | |
1515 | */ | |
a9925b40 | 1516 | hdr->putStr(HDR_X_REQUEST_URI, |
1517 | http->memOjbect()->url ? http->memObject()->url : http->uri); | |
62e76326 | 1518 | |
edce4d98 | 1519 | #endif |
62e76326 | 1520 | |
45cca89d AJ |
1521 | /* Surrogate-Control requires Surrogate-Capability from upstream to pass on */ |
1522 | if ( hdr->has(HDR_SURROGATE_CONTROL) ) { | |
1523 | if (!request->header.has(HDR_SURROGATE_CAPABILITY)) { | |
1524 | hdr->delById(HDR_SURROGATE_CONTROL); | |
1525 | } | |
1526 | /* TODO: else case: drop any controls intended specifically for our surrogate ID */ | |
1527 | } | |
1528 | ||
8c01ada0 | 1529 | httpHdrMangleList(hdr, request, ROR_REPLY); |
edce4d98 | 1530 | } |
1531 | ||
0655fa4d | 1532 | void |
b297bcd0 | 1533 | clientReplyContext::cloneReply() |
edce4d98 | 1534 | { |
7dc5f514 | 1535 | assert(reply == NULL); |
0655fa4d | 1536 | |
b297bcd0 | 1537 | HttpReply *rep = http->storeEntry()->getReply()->clone(); |
7dc5f514 | 1538 | |
1539 | reply = HTTPMSGLOCK(rep); | |
1540 | ||
0c3d3f65 | 1541 | if (reply->sline.protocol == AnyP::PROTO_HTTP) { |
871c031f AJ |
1542 | /* RFC 2616 requires us to advertise our 1.1 version (but only on real HTTP traffic) */ |
1543 | reply->sline.version = HttpVersion(1,1); | |
e77d7ef0 | 1544 | } |
0655fa4d | 1545 | |
1546 | /* do header conversions */ | |
1547 | buildReplyHeader(); | |
edce4d98 | 1548 | } |
1549 | ||
e6ccf245 | 1550 | void |
1551 | clientReplyContext::identifyStoreObject() | |
edce4d98 | 1552 | { |
190154cf | 1553 | HttpRequest *r = http->request; |
62e76326 | 1554 | |
45e5102d | 1555 | if (r->flags.cachable || r->flags.internal) { |
62e76326 | 1556 | lookingforstore = 5; |
1557 | StoreEntry::getPublicByRequest (this, r); | |
559da936 | 1558 | } else { |
62e76326 | 1559 | identifyFoundObject (NullStoreEntry::getInstance()); |
559da936 | 1560 | } |
e6ccf245 | 1561 | } |
1562 | ||
7d5f62a4 AJ |
1563 | /** |
1564 | * Check state of the current StoreEntry object. | |
1565 | * to see if we can determine the final status of the request. | |
1566 | */ | |
e6ccf245 | 1567 | void |
1568 | clientReplyContext::identifyFoundObject(StoreEntry *newEntry) | |
1569 | { | |
1570 | StoreEntry *e = newEntry; | |
190154cf | 1571 | HttpRequest *r = http->request; |
62e76326 | 1572 | |
d85b8894 | 1573 | /** \li If the entry received isNull() then we ignore it. */ |
e6ccf245 | 1574 | if (e->isNull()) { |
86a2f789 | 1575 | http->storeEntry(NULL); |
e6ccf245 | 1576 | } else { |
86a2f789 | 1577 | http->storeEntry(e); |
e6ccf245 | 1578 | } |
62e76326 | 1579 | |
86a2f789 | 1580 | e = http->storeEntry(); |
a12a049a | 1581 | |
7d5f62a4 | 1582 | /* Release IP-cache entries on reload */ |
d85b8894 | 1583 | /** \li If the request has no-cache flag set or some no_cache HACK in operation we |
7d5f62a4 AJ |
1584 | * 'invalidate' the cached IP entries for this request ??? |
1585 | */ | |
450fe1cb | 1586 | if (r->flags.noCache) { |
a12a049a | 1587 | |
f64091a7 | 1588 | #if USE_DNSHELPER |
cc192b50 | 1589 | ipcacheInvalidate(r->GetHost()); |
a12a049a | 1590 | #else |
cc192b50 | 1591 | ipcacheInvalidateNegative(r->GetHost()); |
f64091a7 | 1592 | #endif /* USE_DNSHELPER */ |
a12a049a | 1593 | |
450fe1cb | 1594 | } else if (r->flags.noCacheHack()) { |
45e5102d | 1595 | |
f64091a7 | 1596 | #if USE_DNSHELPER |
cc192b50 | 1597 | ipcacheInvalidate(r->GetHost()); |
a12a049a | 1598 | #else |
cc192b50 | 1599 | ipcacheInvalidateNegative(r->GetHost()); |
f64091a7 | 1600 | #endif /* USE_DNSHELPER */ |
45e5102d | 1601 | |
a12a049a | 1602 | } |
45e5102d | 1603 | |
edce4d98 | 1604 | #if USE_CACHE_DIGESTS |
86a2f789 | 1605 | lookup_type = http->storeEntry() ? "HIT" : "MISS"; |
edce4d98 | 1606 | #endif |
62e76326 | 1607 | |
86a2f789 | 1608 | if (NULL == http->storeEntry()) { |
d85b8894 | 1609 | /** \li If no StoreEntry object is current assume this object isn't in the cache set MISS*/ |
7d5f62a4 | 1610 | debugs(85, 3, "clientProcessRequest2: StoreEntry is NULL - MISS"); |
62e76326 | 1611 | http->logType = LOG_TCP_MISS; |
1612 | doGetMoreData(); | |
1613 | return; | |
edce4d98 | 1614 | } |
62e76326 | 1615 | |
edce4d98 | 1616 | if (Config.onoff.offline) { |
d85b8894 | 1617 | /** \li If we are running in offline mode set to HIT */ |
bf8fe701 | 1618 | debugs(85, 3, "clientProcessRequest2: offline HIT"); |
62e76326 | 1619 | http->logType = LOG_TCP_HIT; |
1620 | doGetMoreData(); | |
1621 | return; | |
edce4d98 | 1622 | } |
62e76326 | 1623 | |
edce4d98 | 1624 | if (http->redirect.status) { |
d85b8894 | 1625 | /** \li If redirection status is True force this to be a MISS */ |
16cd3193 | 1626 | debugs(85, 3, HERE << "REDIRECT status forced StoreEntry to NULL (no body on 3XX responses)"); |
86a2f789 | 1627 | http->storeEntry(NULL); |
16cd3193 | 1628 | http->logType = LOG_TCP_REDIRECT; |
62e76326 | 1629 | doGetMoreData(); |
1630 | return; | |
edce4d98 | 1631 | } |
62e76326 | 1632 | |
3900307b | 1633 | if (!e->validToSend()) { |
bf8fe701 | 1634 | debugs(85, 3, "clientProcessRequest2: !storeEntryValidToSend MISS" ); |
86a2f789 | 1635 | http->storeEntry(NULL); |
62e76326 | 1636 | http->logType = LOG_TCP_MISS; |
1637 | doGetMoreData(); | |
1638 | return; | |
edce4d98 | 1639 | } |
62e76326 | 1640 | |
edce4d98 | 1641 | if (EBIT_TEST(e->flags, ENTRY_SPECIAL)) { |
d85b8894 | 1642 | /* \li Special entries are always hits, no matter what the client says */ |
bf8fe701 | 1643 | debugs(85, 3, "clientProcessRequest2: ENTRY_SPECIAL HIT"); |
62e76326 | 1644 | http->logType = LOG_TCP_HIT; |
1645 | doGetMoreData(); | |
1646 | return; | |
edce4d98 | 1647 | } |
62e76326 | 1648 | |
450fe1cb | 1649 | if (r->flags.noCache) { |
bf8fe701 | 1650 | debugs(85, 3, "clientProcessRequest2: no-cache REFRESH MISS"); |
86a2f789 | 1651 | http->storeEntry(NULL); |
62e76326 | 1652 | http->logType = LOG_TCP_CLIENT_REFRESH_MISS; |
1653 | doGetMoreData(); | |
1654 | return; | |
edce4d98 | 1655 | } |
62e76326 | 1656 | |
bf8fe701 | 1657 | debugs(85, 3, "clientProcessRequest2: default HIT"); |
e6ccf245 | 1658 | http->logType = LOG_TCP_HIT; |
1659 | doGetMoreData(); | |
edce4d98 | 1660 | } |
1661 | ||
d85b8894 AJ |
1662 | /** |
1663 | * Request more data from the store for the client Stream | |
edce4d98 | 1664 | * This is *the* entry point to this module. |
1665 | * | |
1666 | * Preconditions: | |
d85b8894 AJ |
1667 | * - This is the head of the list. |
1668 | * - There is at least one more node. | |
1669 | * - Data context is not null | |
edce4d98 | 1670 | */ |
1671 | void | |
59a1efb2 | 1672 | clientGetMoreData(clientStreamNode * aNode, ClientHttpRequest * http) |
edce4d98 | 1673 | { |
edce4d98 | 1674 | /* Test preconditions */ |
e6ccf245 | 1675 | assert(aNode != NULL); |
1676 | assert(cbdataReferenceValid(aNode)); | |
e6ccf245 | 1677 | assert(aNode->node.prev == NULL); |
1678 | assert(aNode->node.next != NULL); | |
0655fa4d | 1679 | clientReplyContext *context = dynamic_cast<clientReplyContext *>(aNode->data.getRaw()); |
1680 | assert (context); | |
edce4d98 | 1681 | assert(context->http == http); |
1682 | ||
0655fa4d | 1683 | clientStreamNode *next = ( clientStreamNode *)aNode->node.next->data; |
62e76326 | 1684 | |
edce4d98 | 1685 | if (!context->ourNode) |
62e76326 | 1686 | context->ourNode = aNode; |
1687 | ||
e6ccf245 | 1688 | /* no cbdatareference, this is only used once, and safely */ |
edce4d98 | 1689 | if (context->flags.storelogiccomplete) { |
62e76326 | 1690 | StoreIOBuffer tempBuffer; |
1691 | tempBuffer.offset = next->readBuffer.offset + context->headers_sz; | |
1692 | tempBuffer.length = next->readBuffer.length; | |
1693 | tempBuffer.data = next->readBuffer.data; | |
1694 | ||
86a2f789 | 1695 | storeClientCopy(context->sc, http->storeEntry(), |
0655fa4d | 1696 | tempBuffer, clientReplyContext::SendMoreData, context); |
62e76326 | 1697 | return; |
edce4d98 | 1698 | } |
62e76326 | 1699 | |
c2a7cefd | 1700 | if (context->http->request->method == Http::METHOD_PURGE) { |
62e76326 | 1701 | context->purgeRequest(); |
1702 | return; | |
edce4d98 | 1703 | } |
62e76326 | 1704 | |
e18b8316 | 1705 | // OPTIONS with Max-Forwards:0 handled in clientProcessRequest() |
fc90edc3 | 1706 | |
c2a7cefd | 1707 | if (context->http->request->method == Http::METHOD_TRACE) { |
34ee6e73 | 1708 | if (context->http->request->header.getInt64(HDR_MAX_FORWARDS) == 0) { |
0655fa4d | 1709 | context->traceReply(aNode); |
62e76326 | 1710 | return; |
1711 | } | |
1712 | ||
1713 | /* continue forwarding, not finished yet. */ | |
1714 | http->logType = LOG_TCP_MISS; | |
1715 | ||
1716 | context->doGetMoreData(); | |
edce4d98 | 1717 | } else |
62e76326 | 1718 | context->identifyStoreObject(); |
e6ccf245 | 1719 | } |
1720 | ||
1721 | void | |
1722 | clientReplyContext::doGetMoreData() | |
1723 | { | |
edce4d98 | 1724 | /* We still have to do store logic processing - vary, cache hit etc */ |
86a2f789 | 1725 | if (http->storeEntry() != NULL) { |
62e76326 | 1726 | /* someone found the object in the cache for us */ |
8bcf08e0 | 1727 | StoreIOBuffer localTempBuffer; |
34266cde | 1728 | |
3d0ac046 | 1729 | http->storeEntry()->lock(); |
62e76326 | 1730 | |
86a2f789 | 1731 | if (http->storeEntry()->mem_obj == NULL) { |
62e76326 | 1732 | /* |
1733 | * This if-block exists because we don't want to clobber | |
1734 | * a preexiting mem_obj->method value if the mem_obj | |
1735 | * already exists. For example, when a HEAD request | |
1736 | * is a cache hit for a GET response, we want to keep | |
1737 | * the method as GET. | |
1738 | */ | |
3900307b | 1739 | http->storeEntry()->createMemObject(http->uri, http->log_uri); |
7d5f62a4 | 1740 | http->storeEntry()->mem_obj->method = http->request->method; |
62e76326 | 1741 | } |
1742 | ||
86a2f789 | 1743 | sc = storeClientListAdd(http->storeEntry(), this); |
9a0a18de | 1744 | #if USE_DELAY_POOLS |
62e76326 | 1745 | sc->setDelayId(DelayId::DelayClient(http)); |
edce4d98 | 1746 | #endif |
62e76326 | 1747 | |
1748 | assert(http->logType == LOG_TCP_HIT); | |
1749 | reqofs = 0; | |
1750 | /* guarantee nothing has been sent yet! */ | |
1751 | assert(http->out.size == 0); | |
1752 | assert(http->out.offset == 0); | |
425de4c8 AJ |
1753 | |
1754 | if (Ip::Qos::TheConfig.isHitTosActive()) { | |
73c36fd9 | 1755 | Ip::Qos::doTosLocalHit(http->getConn()->clientConnection); |
425de4c8 AJ |
1756 | } |
1757 | ||
1758 | if (Ip::Qos::TheConfig.isHitNfmarkActive()) { | |
73c36fd9 | 1759 | Ip::Qos::doNfmarkLocalHit(http->getConn()->clientConnection); |
b86ab75b | 1760 | } |
425de4c8 | 1761 | |
8bcf08e0 FC |
1762 | localTempBuffer.offset = reqofs; |
1763 | localTempBuffer.length = getNextNode()->readBuffer.length; | |
1764 | localTempBuffer.data = getNextNode()->readBuffer.data; | |
1765 | storeClientCopy(sc, http->storeEntry(), localTempBuffer, CacheHit, this); | |
edce4d98 | 1766 | } else { |
62e76326 | 1767 | /* MISS CASE, http->logType is already set! */ |
0655fa4d | 1768 | processMiss(); |
edce4d98 | 1769 | } |
1770 | } | |
1771 | ||
d85b8894 | 1772 | /** The next node has removed itself from the stream. */ |
edce4d98 | 1773 | void |
59a1efb2 | 1774 | clientReplyDetach(clientStreamNode * node, ClientHttpRequest * http) |
edce4d98 | 1775 | { |
d85b8894 | 1776 | /** detach from the stream */ |
edce4d98 | 1777 | clientStreamDetach(node, http); |
1778 | } | |
1779 | ||
d85b8894 AJ |
1780 | /** |
1781 | * Accepts chunk of a http message in buf, parses prefix, filters headers and | |
edce4d98 | 1782 | * such, writes processed message to the message recipient |
1783 | */ | |
1784 | void | |
0655fa4d | 1785 | clientReplyContext::SendMoreData(void *data, StoreIOBuffer result) |
edce4d98 | 1786 | { |
e6ccf245 | 1787 | clientReplyContext *context = static_cast<clientReplyContext *>(data); |
528b2c61 | 1788 | context->sendMoreData (result); |
1789 | } | |
1790 | ||
1791 | void | |
1792 | clientReplyContext::makeThisHead() | |
1793 | { | |
1794 | /* At least, I think thats what this does */ | |
1795 | dlinkDelete(&http->active, &ClientActiveRequests); | |
1796 | dlinkAdd(http, &http->active, &ClientActiveRequests); | |
1797 | } | |
1798 | ||
1799 | bool | |
1800 | clientReplyContext::errorInStream(StoreIOBuffer const &result, size_t const &sizeToProcess)const | |
1801 | { | |
1802 | return /* aborted request */ | |
86a2f789 | 1803 | (http->storeEntry() && EBIT_TEST(http->storeEntry()->flags, ENTRY_ABORTED)) || |
62e76326 | 1804 | /* Upstream read error */ (result.flags.error) || |
1805 | /* Upstream EOF */ (sizeToProcess == 0); | |
528b2c61 | 1806 | } |
1807 | ||
1808 | void | |
1809 | clientReplyContext::sendStreamError(StoreIOBuffer const &result) | |
1810 | { | |
d85b8894 | 1811 | /** call clientWriteComplete so the client socket gets closed |
af6a12ee | 1812 | * |
d85b8894 | 1813 | * We call into the stream, because we don't know that there is a |
528b2c61 | 1814 | * client socket! |
1815 | */ | |
26ac0430 | 1816 | debugs(88, 5, "clientReplyContext::sendStreamError: A stream error has occured, marking as complete and sending no data."); |
8bcf08e0 | 1817 | StoreIOBuffer localTempBuffer; |
528b2c61 | 1818 | flags.complete = 1; |
450fe1cb | 1819 | http->request->flags.streamError = 1; |
8bcf08e0 | 1820 | localTempBuffer.flags.error = result.flags.error; |
528b2c61 | 1821 | clientStreamCallback((clientStreamNode*)http->client_stream.head->data, http, NULL, |
8bcf08e0 | 1822 | localTempBuffer); |
528b2c61 | 1823 | } |
1824 | ||
1825 | void | |
1826 | clientReplyContext::pushStreamData(StoreIOBuffer const &result, char *source) | |
1827 | { | |
8bcf08e0 | 1828 | StoreIOBuffer localTempBuffer; |
62e76326 | 1829 | |
528b2c61 | 1830 | if (result.length == 0) { |
bf8fe701 | 1831 | debugs(88, 5, "clientReplyContext::pushStreamData: marking request as complete due to 0 length store result"); |
62e76326 | 1832 | flags.complete = 1; |
528b2c61 | 1833 | } |
62e76326 | 1834 | |
43ae1d95 | 1835 | assert(result.offset - headers_sz == next()->readBuffer.offset); |
8bcf08e0 FC |
1836 | localTempBuffer.offset = result.offset - headers_sz; |
1837 | localTempBuffer.length = result.length; | |
62e76326 | 1838 | |
8bcf08e0 FC |
1839 | if (localTempBuffer.length) |
1840 | localTempBuffer.data = source; | |
62e76326 | 1841 | |
528b2c61 | 1842 | clientStreamCallback((clientStreamNode*)http->client_stream.head->data, http, NULL, |
8bcf08e0 | 1843 | localTempBuffer); |
528b2c61 | 1844 | } |
1845 | ||
1846 | clientStreamNode * | |
1847 | clientReplyContext::next() const | |
1848 | { | |
1849 | assert ( (clientStreamNode*)http->client_stream.head->next->data == getNextNode()); | |
1850 | return getNextNode(); | |
1851 | } | |
1852 | ||
b51aec66 | 1853 | void |
16611143 | 1854 | clientReplyContext::sendBodyTooLargeError() |
b51aec66 | 1855 | { |
b7ac5457 | 1856 | Ip::Address tmp_noaddr; |
26ac0430 | 1857 | tmp_noaddr.SetNoAddr(); // TODO: make a global const |
af0d9bca | 1858 | http->logType = LOG_TCP_DENIED_REPLY; |
16611143 | 1859 | ErrorState *err = clientBuildError(ERR_TOO_BIG, HTTP_FORBIDDEN, NULL, |
73c36fd9 | 1860 | http->getConn() != NULL ? http->getConn()->clientConnection->remote : tmp_noaddr, |
26ac0430 | 1861 | http->request); |
16611143 | 1862 | removeClientStoreReference(&(sc), http); |
1863 | HTTPMSGUNLOCK(reply); | |
1864 | startError(err); | |
26ac0430 | 1865 | |
b51aec66 | 1866 | } |
1867 | ||
79c8035e AR |
1868 | /// send 412 (Precondition Failed) to client |
1869 | void | |
1870 | clientReplyContext::sendPreconditionFailedError() | |
1871 | { | |
1872 | http->logType = LOG_TCP_HIT; | |
1873 | ErrorState *const err = | |
1874 | clientBuildError(ERR_PRECONDITION_FAILED, HTTP_PRECONDITION_FAILED, | |
73c36fd9 | 1875 | NULL, http->getConn()->clientConnection->remote, http->request); |
79c8035e AR |
1876 | removeClientStoreReference(&sc, http); |
1877 | HTTPMSGUNLOCK(reply); | |
1878 | startError(err); | |
1879 | } | |
1880 | ||
a2bd457d AJ |
1881 | /// send 304 (Not Modified) to client |
1882 | void | |
1883 | clientReplyContext::sendNotModified() | |
1884 | { | |
1885 | StoreEntry *e = http->storeEntry(); | |
1886 | const time_t timestamp = e->timestamp; | |
1887 | HttpReply *const temprep = e->getReply()->make304(); | |
1888 | http->logType = LOG_TCP_IMS_HIT; | |
1889 | removeClientStoreReference(&sc, http); | |
f206b652 | 1890 | createStoreEntry(http->request->method, RequestFlags()); |
a2bd457d AJ |
1891 | e = http->storeEntry(); |
1892 | // Copy timestamp from the original entry so the 304 | |
1893 | // reply has a meaningful Age: header. | |
90fa5816 | 1894 | e->timestampsSet(); |
a2bd457d AJ |
1895 | e->timestamp = timestamp; |
1896 | e->replaceHttpReply(temprep); | |
1897 | e->complete(); | |
1898 | /* | |
1899 | * TODO: why put this in the store and then serialise it and | |
1900 | * then parse it again. Simply mark the request complete in | |
1901 | * our context and write the reply struct to the client side. | |
1902 | */ | |
1903 | triggerInitialStoreRead(); | |
1904 | } | |
1905 | ||
1906 | /// send 304 (Not Modified) or 412 (Precondition Failed) to client | |
1907 | /// depending on request method | |
1908 | void | |
1909 | clientReplyContext::sendNotModifiedOrPreconditionFailedError() | |
1910 | { | |
c2a7cefd AJ |
1911 | if (http->request->method == Http::METHOD_GET || |
1912 | http->request->method == Http::METHOD_HEAD) | |
a2bd457d AJ |
1913 | sendNotModified(); |
1914 | else | |
1915 | sendPreconditionFailedError(); | |
1916 | } | |
1917 | ||
4993f571 | 1918 | void |
1919 | clientReplyContext::processReplyAccess () | |
1920 | { | |
b50e327b | 1921 | /* NP: this should probably soft-fail to a zero-sized-reply error ?? */ |
7dc5f514 | 1922 | assert(reply); |
b50e327b AJ |
1923 | |
1924 | /** Don't block our own responses or HTTP status messages */ | |
16611143 | 1925 | if (http->logType == LOG_TCP_DENIED || |
26ac0430 AJ |
1926 | http->logType == LOG_TCP_DENIED_REPLY || |
1927 | alwaysAllowResponse(reply->sline.status)) { | |
acbf9428 | 1928 | headers_sz = reply->hdr_sz; |
2efeb0b7 | 1929 | processReplyAccessResult(ACCESS_ALLOWED); |
26ac0430 | 1930 | return; |
230a8cc6 | 1931 | } |
26ac0430 | 1932 | |
b50e327b | 1933 | /** Check for reply to big error */ |
16611143 | 1934 | if (reply->expectedBodyTooLarge(*http->request)) { |
1935 | sendBodyTooLargeError(); | |
62e76326 | 1936 | return; |
1937 | } | |
1938 | ||
7dc5f514 | 1939 | headers_sz = reply->hdr_sz; |
230a8cc6 | 1940 | |
b50e327b | 1941 | /** check for absent access controls (permit by default) */ |
230a8cc6 | 1942 | if (!Config.accessList.reply) { |
2efeb0b7 | 1943 | processReplyAccessResult(ACCESS_ALLOWED); |
26ac0430 | 1944 | return; |
230a8cc6 | 1945 | } |
1946 | ||
b50e327b | 1947 | /** Process http_reply_access lists */ |
127dce76 AR |
1948 | ACLFilledChecklist *replyChecklist = |
1949 | clientAclChecklistCreate(Config.accessList.reply, http); | |
7dc5f514 | 1950 | replyChecklist->reply = HTTPMSGLOCK(reply); |
0655fa4d | 1951 | replyChecklist->nonBlockingCheck(ProcessReplyAccessResult, this); |
4993f571 | 1952 | } |
1953 | ||
1954 | void | |
2efeb0b7 | 1955 | clientReplyContext::ProcessReplyAccessResult(allow_t rv, void *voidMe) |
4993f571 | 1956 | { |
1957 | clientReplyContext *me = static_cast<clientReplyContext *>(voidMe); | |
0655fa4d | 1958 | me->processReplyAccessResult(rv); |
4993f571 | 1959 | } |
1960 | ||
1961 | void | |
2efeb0b7 | 1962 | clientReplyContext::processReplyAccessResult(const allow_t &accessAllowed) |
4993f571 | 1963 | { |
26ac0430 | 1964 | debugs(88, 2, "The reply for " << RequestMethodStr(http->request->method) |
2efeb0b7 | 1965 | << " " << http->uri << " is " << accessAllowed << ", because it matched '" |
bf8fe701 | 1966 | << (AclMatchedName ? AclMatchedName : "NO ACL's") << "'" ); |
62e76326 | 1967 | |
2efeb0b7 | 1968 | if (accessAllowed != ACCESS_ALLOWED) { |
62e76326 | 1969 | ErrorState *err; |
0185bd6f | 1970 | err_type page_id; |
9ce7856a | 1971 | page_id = aclGetDenyInfoPage(&Config.denyInfoList, AclMatchedName, 1); |
0185bd6f | 1972 | |
c466369c | 1973 | http->logType = LOG_TCP_DENIED_REPLY; |
1974 | ||
0185bd6f | 1975 | if (page_id == ERR_NONE) |
1976 | page_id = ERR_ACCESS_DENIED; | |
1977 | ||
b7ac5457 | 1978 | Ip::Address tmp_noaddr; |
26ac0430 | 1979 | tmp_noaddr.SetNoAddr(); |
cc192b50 | 1980 | err = clientBuildError(page_id, HTTP_FORBIDDEN, NULL, |
73c36fd9 | 1981 | http->getConn() != NULL ? http->getConn()->clientConnection->remote : tmp_noaddr, |
26ac0430 | 1982 | http->request); |
0185bd6f | 1983 | |
86a2f789 | 1984 | removeClientStoreReference(&sc, http); |
0185bd6f | 1985 | |
7dc5f514 | 1986 | HTTPMSGUNLOCK(reply); |
0185bd6f | 1987 | |
3c2c1d31 | 1988 | startError(err); |
1989 | ||
62e76326 | 1990 | return; |
1991 | } | |
1992 | ||
0976f8db | 1993 | /* Ok, the reply is allowed, */ |
1994 | http->loggingEntry(http->storeEntry()); | |
1995 | ||
7dc5f514 | 1996 | ssize_t body_size = reqofs - reply->hdr_sz; |
b297bcd0 | 1997 | if (body_size < 0) { |
26ac0430 AJ |
1998 | reqofs = reply->hdr_sz; |
1999 | body_size = 0; | |
b297bcd0 | 2000 | } |
0976f8db | 2001 | |
bf8fe701 | 2002 | debugs(88, 3, "clientReplyContext::sendMoreData: Appending " << |
2003 | (int) body_size << " bytes after " << reply->hdr_sz << | |
2004 | " bytes of headers"); | |
0976f8db | 2005 | |
f41735ea | 2006 | #if USE_SQUID_ESI |
62e76326 | 2007 | |
7dc5f514 | 2008 | if (http->flags.accel && reply->sline.status != HTTP_FORBIDDEN && |
2009 | !alwaysAllowResponse(reply->sline.status) && | |
2010 | esiEnableProcessing(reply)) { | |
bf8fe701 | 2011 | debugs(88, 2, "Enabling ESI processing for " << http->uri); |
43ae1d95 | 2012 | clientStreamInsertHead(&http->client_stream, esiStreamRead, |
2013 | esiProcessStream, esiStreamDetach, esiStreamStatus, NULL); | |
2014 | } | |
2015 | ||
5ef38a13 | 2016 | #endif |
2017 | ||
c2a7cefd | 2018 | if (http->request->method == Http::METHOD_HEAD) { |
62e76326 | 2019 | /* do not forward body for HEAD replies */ |
2020 | body_size = 0; | |
2021 | http->flags.done_copying = 1; | |
2022 | flags.complete = 1; | |
2023 | } | |
2024 | ||
2025 | assert (!flags.headersSent); | |
2026 | flags.headersSent = true; | |
2027 | ||
8bcf08e0 | 2028 | StoreIOBuffer localTempBuffer; |
62e76326 | 2029 | char *buf = next()->readBuffer.data; |
e85eb4e1 | 2030 | char *body_buf = buf + reply->hdr_sz; |
62e76326 | 2031 | |
49ea0125 | 2032 | //Server side may disable ranges under some circumstances. |
2033 | ||
2034 | if ((!http->request->range)) | |
2035 | next()->readBuffer.offset = 0; | |
2036 | ||
e85eb4e1 AJ |
2037 | body_buf -= next()->readBuffer.offset; |
2038 | ||
62e76326 | 2039 | if (next()->readBuffer.offset != 0) { |
2040 | if (next()->readBuffer.offset > body_size) { | |
2324cda2 | 2041 | /* Can't use any of the body we received. send nothing */ |
8bcf08e0 FC |
2042 | localTempBuffer.length = 0; |
2043 | localTempBuffer.data = NULL; | |
62e76326 | 2044 | } else { |
8bcf08e0 FC |
2045 | localTempBuffer.length = body_size - next()->readBuffer.offset; |
2046 | localTempBuffer.data = body_buf + next()->readBuffer.offset; | |
62e76326 | 2047 | } |
2048 | } else { | |
8bcf08e0 FC |
2049 | localTempBuffer.length = body_size; |
2050 | localTempBuffer.data = body_buf; | |
62e76326 | 2051 | } |
2052 | ||
0655fa4d | 2053 | /* TODO??: move the data in the buffer back by the request header size */ |
62e76326 | 2054 | clientStreamCallback((clientStreamNode *)http->client_stream.head->data, |
8bcf08e0 | 2055 | http, reply, localTempBuffer); |
62e76326 | 2056 | |
2057 | return; | |
4993f571 | 2058 | } |
2059 | ||
528b2c61 | 2060 | void |
2061 | clientReplyContext::sendMoreData (StoreIOBuffer result) | |
2062 | { | |
50c09fc4 | 2063 | if (deleting) |
2064 | return; | |
2065 | ||
86a2f789 | 2066 | StoreEntry *entry = http->storeEntry(); |
50c09fc4 | 2067 | |
1cf238db | 2068 | ConnStateData * conn = http->getConn(); |
50c09fc4 | 2069 | |
137ac48a | 2070 | if (conn == NULL || !conn->isOpen()) { |
5c336a3b AJ |
2071 | // too late, our conn is closing |
2072 | // TODO: should we also quit? | |
73c36fd9 | 2073 | debugs(33,3, HERE << "not sending more data to a closing " << conn->clientConnection); |
9af2f95b AR |
2074 | return; |
2075 | } | |
50c09fc4 | 2076 | |
528b2c61 | 2077 | char *buf = next()->readBuffer.data; |
50c09fc4 | 2078 | |
da33c835 | 2079 | if (buf != result.data) { |
62e76326 | 2080 | /* we've got to copy some data */ |
2081 | assert(result.length <= next()->readBuffer.length); | |
41d00cd3 | 2082 | memcpy(buf, result.data, result.length); |
edce4d98 | 2083 | } |
62e76326 | 2084 | |
73c36fd9 | 2085 | if (reqofs==0 && !logTypeIsATcpHit(http->logType) && Comm::IsConnOpen(conn->clientConnection)) { |
425de4c8 | 2086 | if (Ip::Qos::TheConfig.isHitTosActive()) { |
73c36fd9 | 2087 | Ip::Qos::doTosLocalMiss(conn->clientConnection, http->request->hier.code); |
425de4c8 AJ |
2088 | } |
2089 | if (Ip::Qos::TheConfig.isHitNfmarkActive()) { | |
73c36fd9 | 2090 | Ip::Qos::doNfmarkLocalMiss(conn->clientConnection, http->request->hier.code); |
452bb8e2 | 2091 | } |
7172612f | 2092 | } |
7172612f | 2093 | |
ab9c533b HN |
2094 | /* We've got the final data to start pushing... */ |
2095 | flags.storelogiccomplete = 1; | |
2096 | ||
4993f571 | 2097 | reqofs += result.length; |
2098 | ||
2099 | assert(reqofs <= HTTP_REQBUF_SZ || flags.headersSent); | |
62e76326 | 2100 | |
edce4d98 | 2101 | assert(http->request != NULL); |
62e76326 | 2102 | |
edce4d98 | 2103 | /* ESI TODO: remove this assert once everything is stable */ |
2104 | assert(http->client_stream.head->data | |
62e76326 | 2105 | && cbdataReferenceValid(http->client_stream.head->data)); |
528b2c61 | 2106 | |
2107 | makeThisHead(); | |
62e76326 | 2108 | |
bf8fe701 | 2109 | debugs(88, 5, "clientReplyContext::sendMoreData: " << http->uri << ", " << |
47f6e231 | 2110 | reqofs << " bytes (" << result.length << |
bf8fe701 | 2111 | " new bytes)"); |
47f6e231 | 2112 | debugs(88, 5, "clientReplyContext::sendMoreData:" |
73c36fd9 | 2113 | << conn->clientConnection << |
26ac0430 AJ |
2114 | " '" << entry->url() << "'" << |
2115 | " out.offset=" << http->out.offset); | |
528b2c61 | 2116 | |
edce4d98 | 2117 | /* update size of the request */ |
4993f571 | 2118 | reqsize = reqofs; |
62e76326 | 2119 | |
4993f571 | 2120 | if (errorInStream(result, reqofs)) { |
62e76326 | 2121 | sendStreamError(result); |
2122 | return; | |
edce4d98 | 2123 | } |
528b2c61 | 2124 | |
2125 | if (flags.headersSent) { | |
62e76326 | 2126 | pushStreamData (result, buf); |
2127 | return; | |
edce4d98 | 2128 | } |
62e76326 | 2129 | |
b297bcd0 | 2130 | cloneReply(); |
21b92762 | 2131 | |
b297bcd0 | 2132 | /* handle headers */ |
21b92762 | 2133 | |
b297bcd0 | 2134 | if (Config.onoff.log_mime_hdrs) { |
26ac0430 | 2135 | size_t k; |
43ae1d95 | 2136 | |
26ac0430 | 2137 | if ((k = headersEnd(buf, reqofs))) { |
41ebd397 CT |
2138 | safe_free(http->al->headers.reply); |
2139 | http->al->headers.reply = (char *)xcalloc(k + 1, 1); | |
2140 | xstrncpy(http->al->headers.reply, buf, k); | |
26ac0430 | 2141 | } |
edce4d98 | 2142 | } |
b297bcd0 HN |
2143 | |
2144 | holdingBuffer = result; | |
2145 | processReplyAccess(); | |
2146 | return; | |
edce4d98 | 2147 | } |
2148 | ||
edce4d98 | 2149 | /* Using this breaks the client layering just a little! |
2150 | */ | |
0655fa4d | 2151 | void |
f206b652 | 2152 | clientReplyContext::createStoreEntry(const HttpRequestMethod& m, RequestFlags reqFlags) |
edce4d98 | 2153 | { |
0655fa4d | 2154 | assert(http != NULL); |
edce4d98 | 2155 | /* |
2156 | * For erroneous requests, we might not have a h->request, | |
2157 | * so make a fake one. | |
2158 | */ | |
62e76326 | 2159 | |
0655fa4d | 2160 | if (http->request == NULL) |
0c3d3f65 | 2161 | http->request = HTTPMSGLOCK(new HttpRequest(m, AnyP::PROTO_NONE, null_string)); |
62e76326 | 2162 | |
8bcf08e0 | 2163 | StoreEntry *e = storeCreateEntry(http->uri, http->log_uri, reqFlags, m); |
62e76326 | 2164 | |
0655fa4d | 2165 | sc = storeClientListAdd(e, this); |
62e76326 | 2166 | |
9a0a18de | 2167 | #if USE_DELAY_POOLS |
0655fa4d | 2168 | sc->setDelayId(DelayId::DelayClient(http)); |
edce4d98 | 2169 | #endif |
62e76326 | 2170 | |
0655fa4d | 2171 | reqofs = 0; |
62e76326 | 2172 | |
0655fa4d | 2173 | reqsize = 0; |
62e76326 | 2174 | |
edce4d98 | 2175 | /* I don't think this is actually needed! -- adrian */ |
0655fa4d | 2176 | /* http->reqbuf = http->norm_reqbuf; */ |
2177 | // assert(http->reqbuf == http->norm_reqbuf); | |
edce4d98 | 2178 | /* The next line is illegal because we don't know if the client stream |
26ac0430 | 2179 | * buffers have been set up |
edce4d98 | 2180 | */ |
0655fa4d | 2181 | // storeClientCopy(http->sc, e, 0, HTTP_REQBUF_SZ, http->reqbuf, |
2182 | // SendMoreData, this); | |
edce4d98 | 2183 | /* So, we mark the store logic as complete */ |
8bcf08e0 | 2184 | flags.storelogiccomplete = 1; |
62e76326 | 2185 | |
edce4d98 | 2186 | /* and get the caller to request a read, from whereever they are */ |
62e76326 | 2187 | /* NOTE: after ANY data flows down the pipe, even one step, |
26ac0430 | 2188 | * this function CAN NOT be used to manage errors |
edce4d98 | 2189 | */ |
86a2f789 | 2190 | http->storeEntry(e); |
edce4d98 | 2191 | } |
2192 | ||
2193 | ErrorState * | |
2194 | clientBuildError(err_type page_id, http_status status, char const *url, | |
b7ac5457 | 2195 | Ip::Address &src_addr, HttpRequest * request) |
edce4d98 | 2196 | { |
913524f0 | 2197 | ErrorState *err = new ErrorState(page_id, status, request); |
cc192b50 | 2198 | err->src_addr = src_addr; |
62e76326 | 2199 | |
edce4d98 | 2200 | if (url) |
62e76326 | 2201 | err->url = xstrdup(url); |
2202 | ||
edce4d98 | 2203 | return err; |
2204 | } |