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edce4d98 | 1 | /* |
f70aedc4 | 2 | * Copyright (C) 1996-2021 The Squid Software Foundation and contributors |
edce4d98 | 3 | * |
bbc27441 AJ |
4 | * Squid software is distributed under GPLv2+ license and includes |
5 | * contributions from numerous individuals and organizations. | |
6 | * Please see the COPYING and CONTRIBUTORS files for details. | |
edce4d98 | 7 | */ |
bbc27441 AJ |
8 | |
9 | /* DEBUG: section 88 Client-side Reply Routines */ | |
10 | ||
f7f3304a | 11 | #include "squid.h" |
b7ac5457 AJ |
12 | #include "acl/FilledChecklist.h" |
13 | #include "acl/Gadgets.h" | |
65d448bc | 14 | #include "anyp/PortCfg.h" |
0655fa4d | 15 | #include "client_side_reply.h" |
b7ac5457 | 16 | #include "errorpage.h" |
46017fdd | 17 | #include "ETag.h" |
c4ad1349 | 18 | #include "fd.h" |
7172612f | 19 | #include "fde.h" |
31971e6a | 20 | #include "format/Token.h" |
eb13c21e | 21 | #include "FwdState.h" |
582c2af2 | 22 | #include "globals.h" |
d3dddfb5 | 23 | #include "http/Stream.h" |
a5bac1d2 | 24 | #include "HttpHeaderTools.h" |
b7ac5457 AJ |
25 | #include "HttpReply.h" |
26 | #include "HttpRequest.h" | |
27 | #include "ip/QosConfig.h" | |
714e68b7 | 28 | #include "ipcache.h" |
1c7ae5ff | 29 | #include "log/access_log.h" |
b7ac5457 | 30 | #include "MemObject.h" |
b6149797 | 31 | #include "mime_header.h" |
f0ba2534 | 32 | #include "neighbors.h" |
c6f15d40 | 33 | #include "refresh.h" |
f206b652 | 34 | #include "RequestFlags.h" |
4d5904f7 | 35 | #include "SquidConfig.h" |
985c86bc | 36 | #include "SquidTime.h" |
b7ac5457 | 37 | #include "Store.h" |
28204b3b | 38 | #include "StrList.h" |
4e540555 | 39 | #include "tools.h" |
582c2af2 FC |
40 | #if USE_AUTH |
41 | #include "auth/UserRequest.h" | |
42 | #endif | |
43 | #if USE_DELAY_POOLS | |
44 | #include "DelayPools.h" | |
45 | #endif | |
46 | #if USE_SQUID_ESI | |
47 | #include "esi/Esi.h" | |
48 | #endif | |
e6ccf245 | 49 | |
3e4f6092 FC |
50 | #include <memory> |
51 | ||
0655fa4d | 52 | CBDATA_CLASS_INIT(clientReplyContext); |
edce4d98 | 53 | |
edce4d98 | 54 | /* Local functions */ |
e6ccf245 | 55 | extern "C" CSS clientReplyStatus; |
7976fed3 | 56 | ErrorState *clientBuildError(err_type, Http::StatusCode, char const *, const ConnStateData *, HttpRequest *, const AccessLogEntry::Pointer &); |
edce4d98 | 57 | |
edce4d98 | 58 | /* privates */ |
edce4d98 | 59 | |
0655fa4d | 60 | clientReplyContext::~clientReplyContext() |
edce4d98 | 61 | { |
50c09fc4 | 62 | deleting = true; |
63 | /* This may trigger a callback back into SendMoreData as the cbdata | |
64 | * is still valid | |
65 | */ | |
86a2f789 | 66 | removeClientStoreReference(&sc, http); |
edce4d98 | 67 | /* old_entry might still be set if we didn't yet get the reply |
0655fa4d | 68 | * code in HandleIMSReply() */ |
69 | removeStoreReference(&old_sc, &old_entry); | |
70 | safe_free(tempBuffer.data); | |
71 | cbdataReferenceDone(http); | |
2b7d324b | 72 | HTTPMSGUNLOCK(reply); |
edce4d98 | 73 | } |
74 | ||
cc8c4af2 AJ |
75 | clientReplyContext::clientReplyContext(ClientHttpRequest *clientContext) : |
76 | purgeStatus(Http::scNone), | |
cc8c4af2 | 77 | http(cbdataReference(clientContext)), |
67969886 | 78 | headers_sz(0), |
cc8c4af2 AJ |
79 | sc(NULL), |
80 | old_reqsize(0), | |
81 | reqsize(0), | |
82 | reqofs(0), | |
cc8c4af2 AJ |
83 | ourNode(NULL), |
84 | reply(NULL), | |
85 | old_entry(NULL), | |
86 | old_sc(NULL), | |
e7e0f8a4 | 87 | old_lastmod(-1), |
1a210de4 EB |
88 | deleting(false), |
89 | collapsedRevalidation(crNone) | |
cc8c4af2 AJ |
90 | { |
91 | *tempbuf = 0; | |
92 | } | |
edce4d98 | 93 | |
a5c8d64d AJ |
94 | /** Create an error in the store awaiting the client side to read it. |
95 | * | |
96 | * This may be better placed in the clientStream logic, but it has not been | |
0655fa4d | 97 | * relocated there yet |
98 | */ | |
edce4d98 | 99 | void |
0655fa4d | 100 | clientReplyContext::setReplyToError( |
955394ce | 101 | err_type err, Http::StatusCode status, const HttpRequestMethod& method, char const *uri, |
7976fed3 | 102 | const ConnStateData *conn, HttpRequest *failedrequest, const char *unparsedrequest, |
2f1431ea | 103 | #if USE_AUTH |
c7baff40 | 104 | Auth::UserRequest::Pointer auth_user_request |
2f1431ea | 105 | #else |
9d2b8284 | 106 | void* |
2f1431ea | 107 | #endif |
74174c03 | 108 | ) |
edce4d98 | 109 | { |
7976fed3 | 110 | auto errstate = clientBuildError(err, status, uri, conn, failedrequest, http->al); |
62e76326 | 111 | |
edce4d98 | 112 | if (unparsedrequest) |
62e76326 | 113 | errstate->request_hdrs = xstrdup(unparsedrequest); |
edce4d98 | 114 | |
8eb0a7ee CT |
115 | #if USE_AUTH |
116 | errstate->auth_user_request = auth_user_request; | |
117 | #endif | |
118 | setReplyToError(method, errstate); | |
119 | } | |
120 | ||
121 | void clientReplyContext::setReplyToError(const HttpRequestMethod& method, ErrorState *errstate) | |
122 | { | |
955394ce | 123 | if (errstate->httpStatus == Http::scNotImplemented && http->request) |
62e76326 | 124 | /* prevent confusion over whether we default to persistent or not */ |
e857372a | 125 | http->request->flags.proxyKeepalive = false; |
62e76326 | 126 | |
41ebd397 | 127 | http->al->http.code = errstate->httpStatus; |
edce4d98 | 128 | |
f0baf149 AR |
129 | if (http->request) |
130 | http->request->ignoreRange("responding with a Squid-generated error"); | |
131 | ||
f206b652 | 132 | createStoreEntry(method, RequestFlags()); |
edce4d98 | 133 | assert(errstate->callback_data == NULL); |
86a2f789 | 134 | errorAppendEntry(http->storeEntry(), errstate); |
edce4d98 | 135 | /* Now the caller reads to get this */ |
136 | } | |
137 | ||
eacfca83 AR |
138 | void |
139 | clientReplyContext::setReplyToReply(HttpReply *futureReply) | |
140 | { | |
141 | Must(futureReply); | |
142 | http->al->http.code = futureReply->sline.status(); | |
143 | ||
144 | HttpRequestMethod method; | |
145 | if (http->request) { // nil on responses to unparsable requests | |
146 | http->request->ignoreRange("responding with a Squid-generated reply"); | |
147 | method = http->request->method; | |
148 | } | |
149 | ||
150 | createStoreEntry(method, RequestFlags()); | |
151 | ||
152 | http->storeEntry()->storeErrorResponse(futureReply); | |
153 | /* Now the caller reads to get futureReply */ | |
154 | } | |
155 | ||
f0baf149 AR |
156 | // Assumes that the entry contains an error response without Content-Range. |
157 | // To use with regular entries, make HTTP Range header removal conditional. | |
158 | void clientReplyContext::setReplyToStoreEntry(StoreEntry *entry, const char *reason) | |
061bbdec | 159 | { |
1bfe9ade | 160 | entry->lock("clientReplyContext::setReplyToStoreEntry"); // removeClientStoreReference() unlocks |
061bbdec CT |
161 | sc = storeClientListAdd(entry, this); |
162 | #if USE_DELAY_POOLS | |
163 | sc->setDelayId(DelayId::DelayClient(http)); | |
164 | #endif | |
165 | reqofs = 0; | |
166 | reqsize = 0; | |
f0baf149 AR |
167 | if (http->request) |
168 | http->request->ignoreRange(reason); | |
061bbdec CT |
169 | flags.storelogiccomplete = 1; |
170 | http->storeEntry(entry); | |
171 | } | |
172 | ||
edce4d98 | 173 | void |
0655fa4d | 174 | clientReplyContext::removeStoreReference(store_client ** scp, |
175 | StoreEntry ** ep) | |
edce4d98 | 176 | { |
177 | StoreEntry *e; | |
e4ae841b | 178 | store_client *sc_tmp = *scp; |
62e76326 | 179 | |
edce4d98 | 180 | if ((e = *ep) != NULL) { |
62e76326 | 181 | *ep = NULL; |
e4ae841b | 182 | storeUnregister(sc_tmp, e, this); |
62e76326 | 183 | *scp = NULL; |
1bfe9ade | 184 | e->unlock("clientReplyContext::removeStoreReference"); |
edce4d98 | 185 | } |
186 | } | |
187 | ||
86a2f789 | 188 | void |
8bcf08e0 | 189 | clientReplyContext::removeClientStoreReference(store_client **scp, ClientHttpRequest *aHttpRequest) |
86a2f789 | 190 | { |
8bcf08e0 | 191 | StoreEntry *reference = aHttpRequest->storeEntry(); |
86a2f789 | 192 | removeStoreReference(scp, &reference); |
8bcf08e0 | 193 | aHttpRequest->storeEntry(reference); |
86a2f789 | 194 | } |
195 | ||
edce4d98 | 196 | void |
0655fa4d | 197 | clientReplyContext::saveState() |
edce4d98 | 198 | { |
e6ccf245 | 199 | assert(old_sc == NULL); |
bf8fe701 | 200 | debugs(88, 3, "clientReplyContext::saveState: saving store context"); |
86a2f789 | 201 | old_entry = http->storeEntry(); |
e6ccf245 | 202 | old_sc = sc; |
e7e0f8a4 EB |
203 | old_lastmod = http->request->lastmod; |
204 | old_etag = http->request->etag; | |
e6ccf245 | 205 | old_reqsize = reqsize; |
206 | tempBuffer.offset = reqofs; | |
edce4d98 | 207 | /* Prevent accessing the now saved entries */ |
86a2f789 | 208 | http->storeEntry(NULL); |
e6ccf245 | 209 | sc = NULL; |
210 | reqsize = 0; | |
211 | reqofs = 0; | |
edce4d98 | 212 | } |
213 | ||
214 | void | |
0655fa4d | 215 | clientReplyContext::restoreState() |
edce4d98 | 216 | { |
e6ccf245 | 217 | assert(old_sc != NULL); |
bf8fe701 | 218 | debugs(88, 3, "clientReplyContext::restoreState: Restoring store context"); |
86a2f789 | 219 | removeClientStoreReference(&sc, http); |
220 | http->storeEntry(old_entry); | |
e6ccf245 | 221 | sc = old_sc; |
222 | reqsize = old_reqsize; | |
223 | reqofs = tempBuffer.offset; | |
e7e0f8a4 EB |
224 | http->request->lastmod = old_lastmod; |
225 | http->request->etag = old_etag; | |
edce4d98 | 226 | /* Prevent accessed the old saved entries */ |
0655fa4d | 227 | old_entry = NULL; |
e6ccf245 | 228 | old_sc = NULL; |
e7e0f8a4 EB |
229 | old_lastmod = -1; |
230 | old_etag.clean(); | |
e6ccf245 | 231 | old_reqsize = 0; |
232 | tempBuffer.offset = 0; | |
c8be6d7b | 233 | } |
234 | ||
235 | void | |
0655fa4d | 236 | clientReplyContext::startError(ErrorState * err) |
c8be6d7b | 237 | { |
f206b652 | 238 | createStoreEntry(http->request->method, RequestFlags()); |
0655fa4d | 239 | triggerInitialStoreRead(); |
86a2f789 | 240 | errorAppendEntry(http->storeEntry(), err); |
edce4d98 | 241 | } |
242 | ||
e6ccf245 | 243 | clientStreamNode * |
528b2c61 | 244 | clientReplyContext::getNextNode() const |
e6ccf245 | 245 | { |
62e76326 | 246 | return (clientStreamNode *)ourNode->node.next->data; |
e6ccf245 | 247 | } |
248 | ||
62e76326 | 249 | /* This function is wrong - the client parameters don't include the |
528b2c61 | 250 | * header offset |
251 | */ | |
c8be6d7b | 252 | void |
0655fa4d | 253 | clientReplyContext::triggerInitialStoreRead() |
c8be6d7b | 254 | { |
0655fa4d | 255 | /* when confident, 0 becomes reqofs, and then this factors into |
26ac0430 | 256 | * startSendProcess |
528b2c61 | 257 | */ |
0655fa4d | 258 | assert(reqofs == 0); |
8bcf08e0 FC |
259 | StoreIOBuffer localTempBuffer (next()->readBuffer.length, 0, next()->readBuffer.data); |
260 | storeClientCopy(sc, http->storeEntry(), localTempBuffer, SendMoreData, this); | |
c8be6d7b | 261 | } |
edce4d98 | 262 | |
263 | /* there is an expired entry in the store. | |
264 | * setup a temporary buffer area and perform an IMS to the origin | |
265 | */ | |
0655fa4d | 266 | void |
267 | clientReplyContext::processExpired() | |
edce4d98 | 268 | { |
a8a0b1c2 | 269 | const char *url = storeId(); |
bf8fe701 | 270 | debugs(88, 3, "clientReplyContext::processExpired: '" << http->uri << "'"); |
438b41ba EB |
271 | const time_t lastmod = http->storeEntry()->lastModified(); |
272 | assert(lastmod >= 0); | |
edce4d98 | 273 | /* |
274 | * check if we are allowed to contact other servers | |
26ac0430 | 275 | * @?@: Instead of a 504 (Gateway Timeout) reply, we may want to return |
edce4d98 | 276 | * a stale entry *if* it matches client requirements |
277 | */ | |
62e76326 | 278 | |
0655fa4d | 279 | if (http->onlyIfCached()) { |
280 | processOnlyIfCachedMiss(); | |
62e76326 | 281 | return; |
edce4d98 | 282 | } |
62e76326 | 283 | |
d2a6dcba | 284 | http->logType.update(LOG_TCP_REFRESH); |
e857372a | 285 | http->request->flags.refresh = true; |
edce4d98 | 286 | #if STORE_CLIENT_LIST_DEBUG |
c8be6d7b | 287 | /* Prevent a race with the store client memory free routines |
edce4d98 | 288 | */ |
0655fa4d | 289 | assert(storeClientIsThisAClient(sc, this)); |
edce4d98 | 290 | #endif |
291 | /* Prepare to make a new temporary request */ | |
0655fa4d | 292 | saveState(); |
1a210de4 | 293 | |
d2a6dcba | 294 | // TODO: Consider also allowing regular (non-collapsed) revalidation hits. |
1a210de4 | 295 | // TODO: support collapsed revalidation for Vary-controlled entries |
819be284 | 296 | bool collapsingAllowed = Config.onoff.collapsed_forwarding && |
daed75a9 | 297 | !Store::Controller::SmpAware() && |
819be284 | 298 | http->request->vary_headers.isEmpty(); |
1a210de4 EB |
299 | |
300 | StoreEntry *entry = nullptr; | |
301 | if (collapsingAllowed) { | |
819be284 | 302 | if (const auto e = storeGetPublicByRequest(http->request, ksRevalidation)) { |
d2a6dcba | 303 | if (e->hittingRequiresCollapsing() && startCollapsingOn(*e, true)) { |
819be284 EB |
304 | entry = e; |
305 | entry->lock("clientReplyContext::processExpired#alreadyRevalidating"); | |
306 | } else { | |
307 | e->abandon(__FUNCTION__); | |
308 | // assume mayInitiateCollapsing() would fail too | |
309 | collapsingAllowed = false; | |
310 | } | |
311 | } | |
1a210de4 EB |
312 | } |
313 | ||
314 | if (entry) { | |
76d61119 | 315 | entry->ensureMemObject(url, http->log_uri, http->request->method); |
1a210de4 EB |
316 | debugs(88, 5, "collapsed on existing revalidation entry: " << *entry); |
317 | collapsedRevalidation = crSlave; | |
318 | } else { | |
319 | entry = storeCreateEntry(url, | |
320 | http->log_uri, http->request->flags, http->request->method); | |
321 | /* NOTE, don't call StoreEntry->lock(), storeCreateEntry() does it */ | |
322 | ||
819be284 EB |
323 | if (collapsingAllowed && mayInitiateCollapsing() && |
324 | Store::Root().allowCollapsing(entry, http->request->flags, http->request->method)) { | |
1a210de4 | 325 | debugs(88, 5, "allow other revalidation requests to collapse on " << *entry); |
1a210de4 EB |
326 | collapsedRevalidation = crInitiator; |
327 | } else { | |
328 | collapsedRevalidation = crNone; | |
329 | } | |
330 | } | |
331 | ||
0655fa4d | 332 | sc = storeClientListAdd(entry, this); |
9a0a18de | 333 | #if USE_DELAY_POOLS |
edce4d98 | 334 | /* delay_id is already set on original store client */ |
0655fa4d | 335 | sc->setDelayId(DelayId::DelayClient(http)); |
edce4d98 | 336 | #endif |
62e76326 | 337 | |
438b41ba | 338 | http->request->lastmod = lastmod; |
46017fdd | 339 | |
789217a2 | 340 | if (!http->request->header.has(Http::HdrType::IF_NONE_MATCH)) { |
46017fdd CT |
341 | ETag etag = {NULL, -1}; // TODO: make that a default ETag constructor |
342 | if (old_entry->hasEtag(etag) && !etag.weak) | |
343 | http->request->etag = etag.str; | |
344 | } | |
345 | ||
438b41ba | 346 | debugs(88, 5, "lastmod " << entry->lastModified()); |
86a2f789 | 347 | http->storeEntry(entry); |
c8be6d7b | 348 | assert(http->out.offset == 0); |
9174ba3d | 349 | assert(http->request->clientConnectionManager == http->getConn()); |
655daa06 | 350 | |
1a210de4 EB |
351 | if (collapsedRevalidation != crSlave) { |
352 | /* | |
353 | * A refcounted pointer so that FwdState stays around as long as | |
354 | * this clientReplyContext does | |
355 | */ | |
356 | Comm::ConnectionPointer conn = http->getConn() != NULL ? http->getConn()->clientConnection : NULL; | |
357 | FwdState::Start(conn, http->storeEntry(), http->request, http->al); | |
358 | } | |
edce4d98 | 359 | /* Register with storage manager to receive updates when data comes in. */ |
62e76326 | 360 | |
edce4d98 | 361 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) |
fa84c01d | 362 | debugs(88, DBG_CRITICAL, "clientReplyContext::processExpired: Found ENTRY_ABORTED object"); |
62e76326 | 363 | |
c8be6d7b | 364 | { |
62e76326 | 365 | /* start counting the length from 0 */ |
8bcf08e0 FC |
366 | StoreIOBuffer localTempBuffer(HTTP_REQBUF_SZ, 0, tempbuf); |
367 | storeClientCopy(sc, entry, localTempBuffer, HandleIMSReply, this); | |
edce4d98 | 368 | } |
369 | } | |
370 | ||
528b2c61 | 371 | void |
372 | clientReplyContext::sendClientUpstreamResponse() | |
373 | { | |
374 | StoreIOBuffer tempresult; | |
0655fa4d | 375 | removeStoreReference(&old_sc, &old_entry); |
6c8cbe63 D |
376 | |
377 | if (collapsedRevalidation) | |
378 | http->storeEntry()->clearPublicKeyScope(); | |
379 | ||
2324cda2 | 380 | /* here the data to send is the data we just received */ |
528b2c61 | 381 | tempBuffer.offset = 0; |
382 | old_reqsize = 0; | |
0655fa4d | 383 | /* sendMoreData tracks the offset as well. |
528b2c61 | 384 | * Force it back to zero */ |
385 | reqofs = 0; | |
86a2f789 | 386 | assert(!EBIT_TEST(http->storeEntry()->flags, ENTRY_ABORTED)); |
0655fa4d | 387 | /* TODO: provide sendMoreData with the ready parsed reply */ |
528b2c61 | 388 | tempresult.length = reqsize; |
389 | tempresult.data = tempbuf; | |
0655fa4d | 390 | sendMoreData(tempresult); |
528b2c61 | 391 | } |
392 | ||
edce4d98 | 393 | void |
0655fa4d | 394 | clientReplyContext::HandleIMSReply(void *data, StoreIOBuffer result) |
edce4d98 | 395 | { |
e6ccf245 | 396 | clientReplyContext *context = (clientReplyContext *)data; |
0655fa4d | 397 | context->handleIMSReply(result); |
398 | } | |
62e76326 | 399 | |
0655fa4d | 400 | void |
401 | clientReplyContext::sendClientOldEntry() | |
402 | { | |
403 | /* Get the old request back */ | |
404 | restoreState(); | |
405 | /* here the data to send is in the next nodes buffers already */ | |
86a2f789 | 406 | assert(!EBIT_TEST(http->storeEntry()->flags, ENTRY_ABORTED)); |
0655fa4d | 407 | /* sendMoreData tracks the offset as well. |
408 | * Force it back to zero */ | |
409 | reqofs = 0; | |
410 | StoreIOBuffer tempresult (reqsize, reqofs, next()->readBuffer.data); | |
411 | sendMoreData(tempresult); | |
412 | } | |
62e76326 | 413 | |
1d7ab0f4 | 414 | /* This is the workhorse of the HandleIMSReply callback. |
415 | * | |
416 | * It is called when we've got data back from the origin following our | |
417 | * IMS request to revalidate a stale entry. | |
418 | */ | |
0655fa4d | 419 | void |
1d7ab0f4 | 420 | clientReplyContext::handleIMSReply(StoreIOBuffer result) |
0655fa4d | 421 | { |
1d7ab0f4 | 422 | if (deleting) |
423 | return; | |
62e76326 | 424 | |
eace013e | 425 | debugs(88, 3, http->storeEntry()->url() << ", " << (long unsigned) result.length << " bytes"); |
62e76326 | 426 | |
1d7ab0f4 | 427 | if (http->storeEntry() == NULL) |
428 | return; | |
07947ad8 | 429 | |
1d7ab0f4 | 430 | if (result.flags.error && !EBIT_TEST(http->storeEntry()->flags, ENTRY_ABORTED)) |
431 | return; | |
62e76326 | 432 | |
39fe14b2 EB |
433 | if (collapsedRevalidation == crSlave && !http->storeEntry()->mayStartHitting()) { |
434 | debugs(88, 3, "CF slave hit private non-shareable " << *http->storeEntry() << ". MISS"); | |
096c9df3 EB |
435 | // restore context to meet processMiss() expectations |
436 | restoreState(); | |
d2a6dcba | 437 | http->logType.update(LOG_TCP_MISS); |
096c9df3 EB |
438 | processMiss(); |
439 | return; | |
440 | } | |
441 | ||
1d7ab0f4 | 442 | /* update size of the request */ |
443 | reqsize = result.length + reqofs; | |
62e76326 | 444 | |
1d7ab0f4 | 445 | // request to origin was aborted |
446 | if (EBIT_TEST(http->storeEntry()->flags, ENTRY_ABORTED)) { | |
eace013e | 447 | debugs(88, 3, "request to origin aborted '" << http->storeEntry()->url() << "', sending old entry to client"); |
d2a6dcba | 448 | http->logType.update(LOG_TCP_REFRESH_FAIL_OLD); |
1d7ab0f4 | 449 | sendClientOldEntry(); |
760e650f | 450 | return; |
0655fa4d | 451 | } |
62e76326 | 452 | |
66d51f4f AR |
453 | const auto oldStatus = old_entry->mem().freshestReply().sline.status(); |
454 | const auto &new_rep = http->storeEntry()->mem().freshestReply(); | |
455 | const auto status = new_rep.sline.status(); | |
62e76326 | 456 | |
6c8cbe63 D |
457 | // XXX: Disregard stale incomplete (i.e. still being written) borrowed (i.e. |
458 | // not caused by our request) IMS responses. That new_rep may be very old! | |
459 | ||
b297bcd0 | 460 | // origin replied 304 |
955394ce | 461 | if (status == Http::scNotModified) { |
d2a6dcba | 462 | http->logType.update(LOG_TCP_REFRESH_UNMODIFIED); |
e857372a | 463 | http->request->flags.staleIfHit = false; // old_entry is no longer stale |
045a76ab | 464 | |
66d51f4f AR |
465 | // TODO: The update may not be instantaneous. Should we wait for its |
466 | // completion to avoid spawning too much client-disassociated work? | |
abf396ec | 467 | Store::Root().updateOnNotModified(old_entry, *http->storeEntry()); |
62e76326 | 468 | |
26ac0430 | 469 | // if client sent IMS |
438b41ba | 470 | if (http->request->flags.ims && !old_entry->modifiedSince(http->request->ims, http->request->imslen)) { |
26ac0430 | 471 | // forward the 304 from origin |
760e650f | 472 | debugs(88, 3, "origin replied 304, revalidated existing entry and forwarding 304 to client"); |
26ac0430 | 473 | sendClientUpstreamResponse(); |
760e650f | 474 | return; |
26ac0430 | 475 | } |
760e650f AJ |
476 | |
477 | // send existing entry, it's still valid | |
478 | debugs(88, 3, "origin replied 304, revalidated existing entry and sending " << oldStatus << " to client"); | |
479 | sendClientOldEntry(); | |
480 | return; | |
b297bcd0 | 481 | } |
62e76326 | 482 | |
b297bcd0 | 483 | // origin replied with a non-error code |
760e650f | 484 | if (status > Http::scNone && status < Http::scInternalServerError) { |
eace013e EB |
485 | // RFC 7234 section 4: a cache MUST use the most recent response |
486 | // (as determined by the Date header field) | |
66d51f4f | 487 | if (new_rep.olderThan(&old_entry->mem().freshestReply())) { |
eace013e | 488 | http->logType.err.ignored = true; |
760e650f | 489 | debugs(88, 3, "origin replied " << status << " but with an older date header, sending old entry (" << oldStatus << ") to client"); |
eace013e | 490 | sendClientOldEntry(); |
760e650f | 491 | return; |
eace013e | 492 | } |
760e650f AJ |
493 | |
494 | http->logType.update(LOG_TCP_REFRESH_MODIFIED); | |
495 | debugs(88, 3, "origin replied " << status << ", forwarding to client"); | |
496 | sendClientUpstreamResponse(); | |
497 | return; | |
b297bcd0 | 498 | } |
62e76326 | 499 | |
b297bcd0 | 500 | // origin replied with an error |
760e650f | 501 | if (http->request->flags.failOnValidationError) { |
d2a6dcba | 502 | http->logType.update(LOG_TCP_REFRESH_FAIL_ERR); |
760e650f | 503 | debugs(88, 3, "origin replied with error " << status << ", forwarding to client due to fail_on_validation_err"); |
7948b784 | 504 | sendClientUpstreamResponse(); |
760e650f | 505 | return; |
1d7ab0f4 | 506 | } |
760e650f AJ |
507 | |
508 | // ignore and let client have old entry | |
509 | http->logType.update(LOG_TCP_REFRESH_FAIL_OLD); | |
510 | debugs(88, 3, "origin replied with error " << status << ", sending old entry (" << oldStatus << ") to client"); | |
511 | sendClientOldEntry(); | |
edce4d98 | 512 | } |
513 | ||
82afb125 FC |
514 | SQUIDCEXTERN CSR clientGetMoreData; |
515 | SQUIDCEXTERN CSD clientReplyDetach; | |
edce4d98 | 516 | |
7d5f62a4 AJ |
517 | /** |
518 | * clientReplyContext::cacheHit Should only be called until the HTTP reply headers | |
edce4d98 | 519 | * have been parsed. Normally this should be a single call, but |
520 | * it might take more than one. As soon as we have the headers, | |
0655fa4d | 521 | * we hand off to clientSendMoreData, processExpired, or |
522 | * processMiss. | |
edce4d98 | 523 | */ |
524 | void | |
0655fa4d | 525 | clientReplyContext::CacheHit(void *data, StoreIOBuffer result) |
edce4d98 | 526 | { |
e6ccf245 | 527 | clientReplyContext *context = (clientReplyContext *)data; |
7d5f62a4 | 528 | context->cacheHit(result); |
0655fa4d | 529 | } |
530 | ||
7d5f62a4 AJ |
531 | /** |
532 | * Process a possible cache HIT. | |
533 | */ | |
0655fa4d | 534 | void |
535 | clientReplyContext::cacheHit(StoreIOBuffer result) | |
536 | { | |
7d5f62a4 | 537 | /** Ignore if the HIT object is being deleted. */ |
1b7514d9 AJ |
538 | if (deleting) { |
539 | debugs(88, 3, "HIT object being deleted. Ignore the HIT."); | |
045a76ab | 540 | return; |
1b7514d9 | 541 | } |
045a76ab | 542 | |
86a2f789 | 543 | StoreEntry *e = http->storeEntry(); |
045a76ab | 544 | |
190154cf | 545 | HttpRequest *r = http->request; |
045a76ab | 546 | |
4a7a3d56 | 547 | debugs(88, 3, "clientCacheHit: " << http->uri << ", " << result.length << " bytes"); |
62e76326 | 548 | |
86a2f789 | 549 | if (http->storeEntry() == NULL) { |
bf8fe701 | 550 | debugs(88, 3, "clientCacheHit: request aborted"); |
62e76326 | 551 | return; |
c8be6d7b | 552 | } else if (result.flags.error) { |
62e76326 | 553 | /* swap in failure */ |
bf8fe701 | 554 | debugs(88, 3, "clientCacheHit: swapin failure for " << http->uri); |
d2a6dcba | 555 | http->logType.update(LOG_TCP_SWAPFAIL_MISS); |
86a2f789 | 556 | removeClientStoreReference(&sc, http); |
0655fa4d | 557 | processMiss(); |
62e76326 | 558 | return; |
edce4d98 | 559 | } |
62e76326 | 560 | |
2f8abb64 | 561 | // The previously identified hit suddenly became unshareable! |
096c9df3 EB |
562 | // This is common for collapsed forwarding slaves but might also |
563 | // happen to regular hits because we are called asynchronously. | |
39fe14b2 | 564 | if (!e->mayStartHitting()) { |
2f8abb64 | 565 | debugs(88, 3, "unshareable " << *e << ". MISS"); |
d2a6dcba | 566 | http->logType.update(LOG_TCP_MISS); |
096c9df3 EB |
567 | processMiss(); |
568 | return; | |
569 | } | |
570 | ||
d3b3ab85 | 571 | if (result.length == 0) { |
1b7514d9 | 572 | debugs(88, 5, "store IO buffer has no content. MISS"); |
62e76326 | 573 | /* the store couldn't get enough data from the file for us to id the |
574 | * object | |
575 | */ | |
576 | /* treat as a miss */ | |
d2a6dcba | 577 | http->logType.update(LOG_TCP_MISS); |
0655fa4d | 578 | processMiss(); |
62e76326 | 579 | return; |
d3b3ab85 | 580 | } |
62e76326 | 581 | |
edce4d98 | 582 | assert(!EBIT_TEST(e->flags, ENTRY_ABORTED)); |
583 | /* update size of the request */ | |
0655fa4d | 584 | reqsize = result.length + reqofs; |
62e76326 | 585 | |
edce4d98 | 586 | /* |
587 | * Got the headers, now grok them | |
588 | */ | |
91369933 | 589 | assert(http->logType.oldType == LOG_TCP_HIT); |
62e76326 | 590 | |
851feda6 | 591 | if (http->request->storeId().cmp(e->mem_obj->storeId()) != 0) { |
c877c0bc | 592 | debugs(33, DBG_IMPORTANT, "clientProcessHit: URL mismatch, '" << e->mem_obj->storeId() << "' != '" << http->request->storeId() << "'"); |
d2a6dcba | 593 | http->logType.update(LOG_TCP_MISS); // we lack a more precise LOG_*_MISS code |
cdd4e1c1 | 594 | processMiss(); |
595 | return; | |
596 | } | |
597 | ||
edce4d98 | 598 | switch (varyEvaluateMatch(e, r)) { |
62e76326 | 599 | |
edce4d98 | 600 | case VARY_NONE: |
62e76326 | 601 | /* No variance detected. Continue as normal */ |
602 | break; | |
603 | ||
edce4d98 | 604 | case VARY_MATCH: |
62e76326 | 605 | /* This is the correct entity for this request. Continue */ |
bf8fe701 | 606 | debugs(88, 2, "clientProcessHit: Vary MATCH!"); |
62e76326 | 607 | break; |
608 | ||
edce4d98 | 609 | case VARY_OTHER: |
62e76326 | 610 | /* This is not the correct entity for this request. We need |
611 | * to requery the cache. | |
612 | */ | |
86a2f789 | 613 | removeClientStoreReference(&sc, http); |
62e76326 | 614 | e = NULL; |
615 | /* Note: varyEvalyateMatch updates the request with vary information | |
616 | * so we only get here once. (it also takes care of cancelling loops) | |
617 | */ | |
26ac0430 | 618 | debugs(88, 2, "clientProcessHit: Vary detected!"); |
0655fa4d | 619 | clientGetMoreData(ourNode, http); |
62e76326 | 620 | return; |
621 | ||
edce4d98 | 622 | case VARY_CANCEL: |
62e76326 | 623 | /* varyEvaluateMatch found a object loop. Process as miss */ |
e0236918 | 624 | debugs(88, DBG_IMPORTANT, "clientProcessHit: Vary object loop!"); |
d2a6dcba | 625 | http->logType.update(LOG_TCP_MISS); // we lack a more precise LOG_*_MISS code |
0655fa4d | 626 | processMiss(); |
62e76326 | 627 | return; |
edce4d98 | 628 | } |
62e76326 | 629 | |
c2a7cefd | 630 | if (r->method == Http::METHOD_PURGE) { |
1b7514d9 | 631 | debugs(88, 5, "PURGE gets a HIT"); |
86a2f789 | 632 | removeClientStoreReference(&sc, http); |
62e76326 | 633 | e = NULL; |
0655fa4d | 634 | purgeRequest(); |
62e76326 | 635 | return; |
edce4d98 | 636 | } |
62e76326 | 637 | |
1b7514d9 AJ |
638 | if (e->checkNegativeHit() && !r->flags.noCacheHack()) { |
639 | debugs(88, 5, "negative-HIT"); | |
d2a6dcba | 640 | http->logType.update(LOG_TCP_NEGATIVE_HIT); |
0655fa4d | 641 | sendMoreData(result); |
ec4011ac | 642 | return; |
70706149 AR |
643 | } else if (blockedHit()) { |
644 | debugs(88, 5, "send_hit forces a MISS"); | |
d2a6dcba | 645 | http->logType.update(LOG_TCP_MISS); |
70706149 AR |
646 | processMiss(); |
647 | return; | |
bcfba8bd | 648 | } else if (!http->flags.internal && refreshCheckHTTP(e, r)) { |
bf8fe701 | 649 | debugs(88, 5, "clientCacheHit: in refreshCheck() block"); |
62e76326 | 650 | /* |
651 | * We hold a stale copy; it needs to be validated | |
652 | */ | |
653 | /* | |
450fe1cb | 654 | * The 'needValidation' flag is used to prevent forwarding |
62e76326 | 655 | * loops between siblings. If our copy of the object is stale, |
656 | * then we should probably only use parents for the validation | |
657 | * request. Otherwise two siblings could generate a loop if | |
658 | * both have a stale version of the object. | |
659 | */ | |
e857372a | 660 | r->flags.needValidation = true; |
62e76326 | 661 | |
438b41ba EB |
662 | if (e->lastModified() < 0) { |
663 | debugs(88, 3, "validate HIT object? NO. Can't calculate entry modification time. Do MISS."); | |
62e76326 | 664 | /* |
438b41ba EB |
665 | * We cannot revalidate entries without knowing their |
666 | * modification time. | |
667 | * XXX: BUG 1890 objects without Date do not get one added. | |
62e76326 | 668 | */ |
d2a6dcba | 669 | http->logType.update(LOG_TCP_MISS); |
0655fa4d | 670 | processMiss(); |
450fe1cb | 671 | } else if (r->flags.noCache) { |
86310427 | 672 | debugs(88, 3, "validate HIT object? NO. Client sent CC:no-cache. Do CLIENT_REFRESH_MISS"); |
62e76326 | 673 | /* |
674 | * This did not match a refresh pattern that overrides no-cache | |
675 | * we should honour the client no-cache header. | |
676 | */ | |
d2a6dcba | 677 | http->logType.update(LOG_TCP_CLIENT_REFRESH_MISS); |
0655fa4d | 678 | processMiss(); |
ec4568e3 | 679 | } else if (r->url.getScheme() == AnyP::PROTO_HTTP || r->url.getScheme() == AnyP::PROTO_HTTPS) { |
86310427 | 680 | debugs(88, 3, "validate HIT object? YES."); |
62e76326 | 681 | /* |
682 | * Object needs to be revalidated | |
683 | * XXX This could apply to FTP as well, if Last-Modified is known. | |
684 | */ | |
0655fa4d | 685 | processExpired(); |
62e76326 | 686 | } else { |
86310427 | 687 | debugs(88, 3, "validate HIT object? NO. Client protocol non-HTTP. Do MISS."); |
62e76326 | 688 | /* |
689 | * We don't know how to re-validate other protocols. Handle | |
690 | * them as if the object has expired. | |
691 | */ | |
d2a6dcba | 692 | http->logType.update(LOG_TCP_MISS); |
0655fa4d | 693 | processMiss(); |
62e76326 | 694 | } |
ec4011ac | 695 | return; |
1b7514d9 AJ |
696 | } else if (r->conditional()) { |
697 | debugs(88, 5, "conditional HIT"); | |
acd68301 GD |
698 | if (processConditional(result)) |
699 | return; | |
700 | } | |
701 | ||
702 | /* | |
703 | * plain ol' cache hit | |
704 | */ | |
705 | debugs(88, 5, "plain old HIT"); | |
62e76326 | 706 | |
9a0a18de | 707 | #if USE_DELAY_POOLS |
acd68301 | 708 | if (e->store_status != STORE_OK) |
d2a6dcba | 709 | http->logType.update(LOG_TCP_MISS); |
acd68301 | 710 | else |
5bf4d170 | 711 | #endif |
acd68301 | 712 | if (e->mem_status == IN_MEMORY) |
d2a6dcba | 713 | http->logType.update(LOG_TCP_MEM_HIT); |
acd68301 | 714 | else if (Config.onoff.offline) |
d2a6dcba | 715 | http->logType.update(LOG_TCP_OFFLINE_HIT); |
62e76326 | 716 | |
acd68301 | 717 | sendMoreData(result); |
edce4d98 | 718 | } |
719 | ||
7d5f62a4 | 720 | /** |
edce4d98 | 721 | * Prepare to fetch the object as it's a cache miss of some kind. |
722 | */ | |
723 | void | |
0655fa4d | 724 | clientReplyContext::processMiss() |
edce4d98 | 725 | { |
edce4d98 | 726 | char *url = http->uri; |
190154cf | 727 | HttpRequest *r = http->request; |
edce4d98 | 728 | ErrorState *err = NULL; |
7f06a3d8 | 729 | debugs(88, 4, r->method << ' ' << url); |
7d5f62a4 AJ |
730 | |
731 | /** | |
edce4d98 | 732 | * We might have a left-over StoreEntry from a failed cache hit |
733 | * or IMS request. | |
734 | */ | |
86a2f789 | 735 | if (http->storeEntry()) { |
736 | if (EBIT_TEST(http->storeEntry()->flags, ENTRY_SPECIAL)) { | |
fa84c01d | 737 | debugs(88, DBG_CRITICAL, "clientProcessMiss: miss on a special object (" << url << ")."); |
91369933 | 738 | debugs(88, DBG_CRITICAL, "\tlog_type = " << http->logType.c_str()); |
3900307b | 739 | http->storeEntry()->dump(1); |
62e76326 | 740 | } |
741 | ||
86a2f789 | 742 | removeClientStoreReference(&sc, http); |
edce4d98 | 743 | } |
62e76326 | 744 | |
7d5f62a4 | 745 | /** Check if its a PURGE request to be actioned. */ |
c2a7cefd | 746 | if (r->method == Http::METHOD_PURGE) { |
0655fa4d | 747 | purgeRequest(); |
62e76326 | 748 | return; |
edce4d98 | 749 | } |
914b89a2 | 750 | |
7d5f62a4 | 751 | /** Check if its an 'OTHER' request. Purge all cached entries if so and continue. */ |
c2a7cefd | 752 | if (r->method == Http::METHOD_OTHER) { |
26ac0430 | 753 | purgeAllCached(); |
60745f24 | 754 | } |
62e76326 | 755 | |
7d5f62a4 | 756 | /** Check if 'only-if-cached' flag is set. Action if so. */ |
0655fa4d | 757 | if (http->onlyIfCached()) { |
758 | processOnlyIfCachedMiss(); | |
62e76326 | 759 | return; |
edce4d98 | 760 | } |
62e76326 | 761 | |
42829656 | 762 | /// Deny loops |
450fe1cb | 763 | if (r->flags.loopDetected) { |
955394ce | 764 | http->al->http.code = Http::scForbidden; |
7976fed3 | 765 | err = clientBuildError(ERR_ACCESS_DENIED, Http::scForbidden, nullptr, http->getConn(), http->request, http->al); |
f206b652 | 766 | createStoreEntry(r->method, RequestFlags()); |
86a2f789 | 767 | errorAppendEntry(http->storeEntry(), err); |
0655fa4d | 768 | triggerInitialStoreRead(); |
62e76326 | 769 | return; |
edce4d98 | 770 | } else { |
26ac0430 | 771 | assert(http->out.offset == 0); |
0655fa4d | 772 | createStoreEntry(r->method, r->flags); |
773 | triggerInitialStoreRead(); | |
62e76326 | 774 | |
775 | if (http->redirect.status) { | |
66d51f4f | 776 | const HttpReplyPointer rep(new HttpReply); |
d2a6dcba | 777 | http->logType.update(LOG_TCP_REDIRECT); |
d88e3c49 | 778 | http->storeEntry()->releaseRequest(); |
06a5ae20 | 779 | rep->redirect(http->redirect.status, http->redirect.location); |
db237875 | 780 | http->storeEntry()->replaceHttpReply(rep); |
86a2f789 | 781 | http->storeEntry()->complete(); |
62e76326 | 782 | return; |
783 | } | |
784 | ||
9174ba3d | 785 | assert(r->clientConnectionManager == http->getConn()); |
655daa06 | 786 | |
7976fed3 | 787 | Comm::ConnectionPointer conn = http->getConn() != nullptr ? http->getConn()->clientConnection : nullptr; |
7d5f62a4 | 788 | /** Start forwarding to get the new object from network */ |
4bf68cfa | 789 | FwdState::Start(conn, http->storeEntry(), r, http->al); |
edce4d98 | 790 | } |
791 | } | |
792 | ||
7d5f62a4 | 793 | /** |
edce4d98 | 794 | * client issued a request with an only-if-cached cache-control directive; |
795 | * we did not find a cached object that can be returned without | |
796 | * contacting other servers; | |
797 | * respond with a 504 (Gateway Timeout) as suggested in [RFC 2068] | |
798 | */ | |
0655fa4d | 799 | void |
800 | clientReplyContext::processOnlyIfCachedMiss() | |
edce4d98 | 801 | { |
7f06a3d8 | 802 | debugs(88, 4, http->request->method << ' ' << http->uri); |
f11c8e2f AJ |
803 | http->al->http.code = Http::scGatewayTimeout; |
804 | ErrorState *err = clientBuildError(ERR_ONLY_IF_CACHED_MISS, Http::scGatewayTimeout, NULL, | |
7976fed3 | 805 | http->getConn(), http->request, http->al); |
86a2f789 | 806 | removeClientStoreReference(&sc, http); |
0655fa4d | 807 | startError(err); |
edce4d98 | 808 | } |
809 | ||
79c8035e | 810 | /// process conditional request from client |
acd68301 | 811 | bool |
79c8035e AR |
812 | clientReplyContext::processConditional(StoreIOBuffer &result) |
813 | { | |
a2bd457d | 814 | StoreEntry *const e = http->storeEntry(); |
79c8035e | 815 | |
66d51f4f AR |
816 | const auto replyStatusCode = e->mem().baseReply().sline.status(); |
817 | if (replyStatusCode != Http::scOkay) { | |
818 | debugs(88, 4, "miss because " << replyStatusCode << " != 200"); | |
d2a6dcba | 819 | http->logType.update(LOG_TCP_MISS); |
79c8035e | 820 | processMiss(); |
acd68301 | 821 | return true; |
79c8035e AR |
822 | } |
823 | ||
824 | HttpRequest &r = *http->request; | |
825 | ||
789217a2 | 826 | if (r.header.has(Http::HdrType::IF_MATCH) && !e->hasIfMatchEtag(r)) { |
79c8035e AR |
827 | // RFC 2616: reply with 412 Precondition Failed if If-Match did not match |
828 | sendPreconditionFailedError(); | |
acd68301 | 829 | return true; |
79c8035e AR |
830 | } |
831 | ||
789217a2 | 832 | if (r.header.has(Http::HdrType::IF_NONE_MATCH)) { |
787ea68c GD |
833 | // RFC 7232: If-None-Match recipient MUST ignore IMS |
834 | r.flags.ims = false; | |
835 | r.ims = -1; | |
836 | r.imslen = 0; | |
837 | r.header.delById(Http::HdrType::IF_MODIFIED_SINCE); | |
79c8035e | 838 | |
787ea68c | 839 | if (e->hasIfNoneMatchEtag(r)) { |
a2bd457d | 840 | sendNotModifiedOrPreconditionFailedError(); |
acd68301 | 841 | return true; |
79c8035e AR |
842 | } |
843 | ||
787ea68c GD |
844 | // None-Match is true (no ETag matched); treat as an unconditional hit |
845 | return false; | |
79c8035e AR |
846 | } |
847 | ||
45e5102d | 848 | if (r.flags.ims) { |
79c8035e | 849 | // handle If-Modified-Since requests from the client |
438b41ba | 850 | if (e->modifiedSince(r.ims, r.imslen)) { |
2e2ef19a SM |
851 | // Modified-Since is true; treat as an unconditional hit |
852 | return false; | |
79c8035e | 853 | |
acd68301 GD |
854 | } else { |
855 | // otherwise reply with 304 Not Modified | |
856 | sendNotModified(); | |
857 | } | |
858 | return true; | |
79c8035e | 859 | } |
acd68301 GD |
860 | |
861 | return false; | |
79c8035e AR |
862 | } |
863 | ||
70706149 AR |
864 | /// whether squid.conf send_hit prevents us from serving this hit |
865 | bool | |
866 | clientReplyContext::blockedHit() const | |
867 | { | |
868 | if (!Config.accessList.sendHit) | |
869 | return false; // hits are not blocked by default | |
870 | ||
871 | if (http->flags.internal) | |
872 | return false; // internal content "hits" cannot be blocked | |
873 | ||
66d51f4f AR |
874 | const auto &rep = http->storeEntry()->mem().freshestReply(); |
875 | { | |
829030b5 | 876 | std::unique_ptr<ACLFilledChecklist> chl(clientAclChecklistCreate(Config.accessList.sendHit, http)); |
66d51f4f | 877 | chl->reply = const_cast<HttpReply*>(&rep); // ACLChecklist API bug |
70706149 | 878 | HTTPMSGLOCK(chl->reply); |
06bf5384 | 879 | return !chl->fastCheck().allowed(); // when in doubt, block |
70706149 | 880 | } |
70706149 AR |
881 | } |
882 | ||
c1520b67 AJ |
883 | // Purges all entries with a given url |
884 | // TODO: move to SideAgent parent, when we have one | |
60745f24 | 885 | /* |
886 | * We probably cannot purge Vary-affected responses because their MD5 | |
887 | * keys depend on vary headers. | |
888 | */ | |
c1520b67 | 889 | void |
90bd689c | 890 | purgeEntriesByUrl(HttpRequest * req, const char *url) |
c1520b67 | 891 | { |
c2a7cefd AJ |
892 | for (HttpRequestMethod m(Http::METHOD_NONE); m != Http::METHOD_ENUM_END; ++m) { |
893 | if (m.respMaybeCacheable()) { | |
4310f8b0 EB |
894 | const cache_key *key = storeKeyPublic(url, m); |
895 | debugs(88, 5, m << ' ' << url << ' ' << storeKeyText(key)); | |
90bd689c | 896 | #if USE_HTCP |
1ac1d4d3 | 897 | neighborsHtcpClear(nullptr, req, m, HTCP_CLR_INVALIDATION); |
90bd689c | 898 | #endif |
4310f8b0 | 899 | Store::Root().evictIfFound(key); |
c1520b67 AJ |
900 | } |
901 | } | |
902 | } | |
903 | ||
26ac0430 | 904 | void |
60745f24 | 905 | clientReplyContext::purgeAllCached() |
906 | { | |
851feda6 AJ |
907 | // XXX: performance regression, c_str() reallocates |
908 | SBuf url(http->request->effectiveRequestUri()); | |
909 | purgeEntriesByUrl(http->request, url.c_str()); | |
35ececa5 | 910 | } |
60745f24 | 911 | |
d2a6dcba | 912 | LogTags * |
7976fed3 | 913 | clientReplyContext::loggingTags() const |
d2a6dcba EB |
914 | { |
915 | // XXX: clientReplyContext code assumes that http cbdata is always valid. | |
916 | // TODO: Either add cbdataReferenceValid(http) checks in all the relevant | |
917 | // places, like this one, or remove cbdata protection of the http member. | |
918 | return &http->logType; | |
919 | } | |
920 | ||
e6ccf245 | 921 | void |
922 | clientReplyContext::purgeRequest() | |
edce4d98 | 923 | { |
bf8fe701 | 924 | debugs(88, 3, "Config2.onoff.enable_purge = " << |
925 | Config2.onoff.enable_purge); | |
62e76326 | 926 | |
edce4d98 | 927 | if (!Config2.onoff.enable_purge) { |
d2a6dcba | 928 | http->logType.update(LOG_TCP_DENIED); |
6b4edefb | 929 | ErrorState *err = clientBuildError(ERR_ACCESS_DENIED, Http::scForbidden, NULL, |
7976fed3 | 930 | http->getConn(), http->request, http->al); |
0655fa4d | 931 | startError(err); |
62e76326 | 932 | return; |
edce4d98 | 933 | } |
62e76326 | 934 | |
edce4d98 | 935 | /* Release both IP cache */ |
5c51bffb | 936 | ipcacheInvalidate(http->request->url.host()); |
edce4d98 | 937 | |
7976fed3 EB |
938 | // TODO: can we use purgeAllCached() here instead? |
939 | purgeDoPurge(); | |
e6ccf245 | 940 | } |
941 | ||
942 | void | |
7976fed3 EB |
943 | clientReplyContext::purgeDoPurge() |
944 | { | |
945 | auto firstFound = false; | |
946 | if (const auto entry = storeGetPublicByRequestMethod(http->request, Http::METHOD_GET)) { | |
947 | // special entries are only METHOD_GET entries without variance | |
948 | if (EBIT_TEST(entry->flags, ENTRY_SPECIAL)) { | |
949 | http->logType.update(LOG_TCP_DENIED); | |
950 | const auto err = clientBuildError(ERR_ACCESS_DENIED, Http::scForbidden, nullptr, | |
951 | http->getConn(), http->request, http->al); | |
952 | startError(err); | |
953 | entry->abandon(__FUNCTION__); | |
954 | return; | |
955 | } | |
956 | firstFound = true; | |
957 | if (!purgeEntry(*entry, Http::METHOD_GET)) | |
958 | return; | |
edce4d98 | 959 | } |
62e76326 | 960 | |
7976fed3 | 961 | detailStoreLookup(storeLookupString(firstFound)); |
e6ccf245 | 962 | |
7976fed3 EB |
963 | if (const auto entry = storeGetPublicByRequestMethod(http->request, Http::METHOD_HEAD)) { |
964 | if (!purgeEntry(*entry, Http::METHOD_HEAD)) | |
965 | return; | |
edce4d98 | 966 | } |
62e76326 | 967 | |
edce4d98 | 968 | /* And for Vary, release the base URI if none of the headers was included in the request */ |
90ab8f20 AJ |
969 | if (!http->request->vary_headers.isEmpty() |
970 | && http->request->vary_headers.find('=') != SBuf::npos) { | |
851feda6 AJ |
971 | // XXX: performance regression, c_str() reallocates |
972 | SBuf tmp(http->request->effectiveRequestUri()); | |
62e76326 | 973 | |
7976fed3 EB |
974 | if (const auto entry = storeGetPublic(tmp.c_str(), Http::METHOD_GET)) { |
975 | if (!purgeEntry(*entry, Http::METHOD_GET, "Vary ")) | |
976 | return; | |
62e76326 | 977 | } |
978 | ||
7976fed3 EB |
979 | if (const auto entry = storeGetPublic(tmp.c_str(), Http::METHOD_HEAD)) { |
980 | if (!purgeEntry(*entry, Http::METHOD_HEAD, "Vary ")) | |
981 | return; | |
62e76326 | 982 | } |
edce4d98 | 983 | } |
62e76326 | 984 | |
7f98aad5 CT |
985 | if (purgeStatus == Http::scNone) |
986 | purgeStatus = Http::scNotFound; | |
987 | ||
edce4d98 | 988 | /* |
989 | * Make a new entry to hold the reply to be written | |
990 | * to the client. | |
991 | */ | |
9837567d | 992 | /* TODO: This doesn't need to go through the store. Simply |
528b2c61 | 993 | * push down the client chain |
994 | */ | |
f206b652 | 995 | createStoreEntry(http->request->method, RequestFlags()); |
62e76326 | 996 | |
0655fa4d | 997 | triggerInitialStoreRead(); |
62e76326 | 998 | |
66d51f4f | 999 | const HttpReplyPointer rep(new HttpReply); |
11992b6f | 1000 | rep->setHeaders(purgeStatus, NULL, NULL, 0, 0, -1); |
7dc5f514 | 1001 | http->storeEntry()->replaceHttpReply(rep); |
86a2f789 | 1002 | http->storeEntry()->complete(); |
edce4d98 | 1003 | } |
1004 | ||
7976fed3 EB |
1005 | bool |
1006 | clientReplyContext::purgeEntry(StoreEntry &entry, const Http::MethodType methodType, const char *descriptionPrefix) | |
1007 | { | |
1008 | debugs(88, 4, descriptionPrefix << Http::MethodStr(methodType) << " '" << entry.url() << "'" ); | |
1009 | #if USE_HTCP | |
1010 | neighborsHtcpClear(&entry, http->request, HttpRequestMethod(methodType), HTCP_CLR_PURGE); | |
1011 | #endif | |
1012 | entry.release(true); | |
1013 | purgeStatus = Http::scOkay; | |
1014 | return true; | |
1015 | } | |
1016 | ||
edce4d98 | 1017 | void |
0655fa4d | 1018 | clientReplyContext::traceReply(clientStreamNode * node) |
edce4d98 | 1019 | { |
076df709 | 1020 | clientStreamNode *nextNode = (clientStreamNode *)node->node.next->data; |
8bcf08e0 | 1021 | StoreIOBuffer localTempBuffer; |
f206b652 | 1022 | createStoreEntry(http->request->method, RequestFlags()); |
076df709 FC |
1023 | localTempBuffer.offset = nextNode->readBuffer.offset + headers_sz; |
1024 | localTempBuffer.length = nextNode->readBuffer.length; | |
1025 | localTempBuffer.data = nextNode->readBuffer.data; | |
86a2f789 | 1026 | storeClientCopy(sc, http->storeEntry(), |
8bcf08e0 | 1027 | localTempBuffer, SendMoreData, this); |
d88e3c49 | 1028 | http->storeEntry()->releaseRequest(); |
3900307b | 1029 | http->storeEntry()->buffer(); |
66d51f4f | 1030 | const HttpReplyPointer rep(new HttpReply); |
955394ce | 1031 | rep->setHeaders(Http::scOkay, NULL, "text/plain", http->request->prefixLen(), 0, squid_curtime); |
db237875 | 1032 | http->storeEntry()->replaceHttpReply(rep); |
5cafad19 | 1033 | http->request->swapOut(http->storeEntry()); |
86a2f789 | 1034 | http->storeEntry()->complete(); |
edce4d98 | 1035 | } |
1036 | ||
1037 | #define SENDING_BODY 0 | |
1038 | #define SENDING_HDRSONLY 1 | |
1039 | int | |
0655fa4d | 1040 | clientReplyContext::checkTransferDone() |
edce4d98 | 1041 | { |
86a2f789 | 1042 | StoreEntry *entry = http->storeEntry(); |
62e76326 | 1043 | |
edce4d98 | 1044 | if (entry == NULL) |
62e76326 | 1045 | return 0; |
1046 | ||
1047 | /* | |
edce4d98 | 1048 | * For now, 'done_copying' is used for special cases like |
1049 | * Range and HEAD requests. | |
1050 | */ | |
0655fa4d | 1051 | if (http->flags.done_copying) |
62e76326 | 1052 | return 1; |
1053 | ||
450fe1cb | 1054 | if (http->request->flags.chunkedReply && !flags.complete) { |
4ad60609 AR |
1055 | // last-chunk was not sent |
1056 | return 0; | |
1057 | } | |
1058 | ||
edce4d98 | 1059 | /* |
1060 | * Handle STORE_OK objects. | |
1061 | * objectLen(entry) will be set proprely. | |
26ac0430 | 1062 | * RC: Does objectLen(entry) include the Headers? |
0e3be1ea | 1063 | * RC: Yes. |
edce4d98 | 1064 | */ |
1065 | if (entry->store_status == STORE_OK) { | |
0655fa4d | 1066 | return storeOKTransferDone(); |
e39b9382 | 1067 | } else { |
0655fa4d | 1068 | return storeNotOKTransferDone(); |
edce4d98 | 1069 | } |
e39b9382 | 1070 | } |
1071 | ||
1072 | int | |
1073 | clientReplyContext::storeOKTransferDone() const | |
1074 | { | |
aa1a691e AR |
1075 | assert(http->storeEntry()->objectLen() >= 0); |
1076 | assert(http->storeEntry()->objectLen() >= headers_sz); | |
47f6e231 | 1077 | if (http->out.offset >= http->storeEntry()->objectLen() - headers_sz) { |
26ac0430 AJ |
1078 | debugs(88,3,HERE << "storeOKTransferDone " << |
1079 | " out.offset=" << http->out.offset << | |
1080 | " objectLen()=" << http->storeEntry()->objectLen() << | |
1081 | " headers_sz=" << headers_sz); | |
62e76326 | 1082 | return 1; |
47f6e231 | 1083 | } |
62e76326 | 1084 | |
e39b9382 | 1085 | return 0; |
1086 | } | |
1087 | ||
1088 | int | |
1089 | clientReplyContext::storeNotOKTransferDone() const | |
1090 | { | |
edce4d98 | 1091 | /* |
1092 | * Now, handle STORE_PENDING objects | |
1093 | */ | |
86a2f789 | 1094 | MemObject *mem = http->storeEntry()->mem_obj; |
edce4d98 | 1095 | assert(mem != NULL); |
1096 | assert(http->request != NULL); | |
62e76326 | 1097 | |
a0c227a9 | 1098 | /* mem->reply was wrong because it uses the UPSTREAM header length!!! */ |
e39b9382 | 1099 | if (headers_sz == 0) |
62e76326 | 1100 | /* haven't found end of headers yet */ |
1101 | return 0; | |
e39b9382 | 1102 | |
66d51f4f AR |
1103 | // TODO: Use MemObject::expectedReplySize(method) after resolving XXX below. |
1104 | const auto expectedBodySize = mem->baseReply().content_length; | |
1105 | ||
1106 | // XXX: The code below talks about sending data, and checks stats about | |
1107 | // bytes written to the client connection, but this method must determine | |
1108 | // whether we are done _receiving_ data from Store. This code should work OK | |
1109 | // when expectedBodySize is unknown or matches written data, but it may | |
1110 | // malfunction when we are writing ranges while receiving a full response. | |
a0c227a9 | 1111 | |
edce4d98 | 1112 | /* |
1113 | * Figure out how much data we are supposed to send. | |
1114 | * If we are sending a body and we don't have a content-length, | |
1115 | * then we must wait for the object to become STORE_OK. | |
1116 | */ | |
66d51f4f | 1117 | if (expectedBodySize < 0) |
62e76326 | 1118 | return 0; |
e39b9382 | 1119 | |
66d51f4f | 1120 | const uint64_t expectedLength = expectedBodySize + http->out.headers_sz; |
62e76326 | 1121 | |
e39b9382 | 1122 | if (http->out.size < expectedLength) |
62e76326 | 1123 | return 0; |
47f6e231 | 1124 | else { |
26ac0430 AJ |
1125 | debugs(88,3,HERE << "storeNotOKTransferDone " << |
1126 | " out.size=" << http->out.size << | |
1127 | " expectedLength=" << expectedLength); | |
62e76326 | 1128 | return 1; |
47f6e231 | 1129 | } |
edce4d98 | 1130 | } |
1131 | ||
62e76326 | 1132 | /* Preconditions: |
edce4d98 | 1133 | * *http is a valid structure. |
1134 | * fd is either -1, or an open fd. | |
1135 | * | |
1136 | * TODO: enumify this | |
1137 | * | |
1138 | * This function is used by any http request sink, to determine the status | |
1139 | * of the object. | |
1140 | */ | |
1141 | clientStream_status_t | |
59a1efb2 | 1142 | clientReplyStatus(clientStreamNode * aNode, ClientHttpRequest * http) |
edce4d98 | 1143 | { |
0655fa4d | 1144 | clientReplyContext *context = dynamic_cast<clientReplyContext *>(aNode->data.getRaw()); |
1145 | assert (context); | |
1146 | assert (context->http == http); | |
1147 | return context->replyStatus(); | |
1148 | } | |
1149 | ||
1150 | clientStream_status_t | |
1151 | clientReplyContext::replyStatus() | |
1152 | { | |
edce4d98 | 1153 | int done; |
1154 | /* Here because lower nodes don't need it */ | |
62e76326 | 1155 | |
3daaed1a | 1156 | if (http->storeEntry() == NULL) { |
1157 | debugs(88, 5, "clientReplyStatus: no storeEntry"); | |
f53969cc | 1158 | return STREAM_FAILED; /* yuck, but what can we do? */ |
3daaed1a | 1159 | } |
62e76326 | 1160 | |
3daaed1a | 1161 | if (EBIT_TEST(http->storeEntry()->flags, ENTRY_ABORTED)) { |
62e76326 | 1162 | /* TODO: Could upstream read errors (result.flags.error) be |
1163 | * lost, and result in undersize requests being considered | |
1164 | * complete. Should we tcp reset such connections ? | |
1165 | */ | |
3daaed1a | 1166 | debugs(88, 5, "clientReplyStatus: aborted storeEntry"); |
62e76326 | 1167 | return STREAM_FAILED; |
3daaed1a | 1168 | } |
62e76326 | 1169 | |
0655fa4d | 1170 | if ((done = checkTransferDone()) != 0 || flags.complete) { |
1bfe9ade | 1171 | debugs(88, 5, "clientReplyStatus: transfer is DONE: " << done << flags.complete); |
62e76326 | 1172 | /* Ok we're finished, but how? */ |
1173 | ||
7224ca5a AR |
1174 | if (EBIT_TEST(http->storeEntry()->flags, ENTRY_BAD_LENGTH)) { |
1175 | debugs(88, 5, "clientReplyStatus: truncated response body"); | |
1176 | return STREAM_UNPLANNED_COMPLETE; | |
1177 | } | |
1178 | ||
62e76326 | 1179 | if (!done) { |
bf8fe701 | 1180 | debugs(88, 5, "clientReplyStatus: closing, !done, but read 0 bytes"); |
62e76326 | 1181 | return STREAM_FAILED; |
1182 | } | |
1183 | ||
66d51f4f | 1184 | // TODO: See also (and unify with) storeNotOKTransferDone() checks. |
14231db9 | 1185 | const int64_t expectedBodySize = |
66d51f4f | 1186 | http->storeEntry()->mem().baseReply().bodySize(http->request->method); |
4ad60609 | 1187 | if (expectedBodySize >= 0 && !http->gotEnough()) { |
bf8fe701 | 1188 | debugs(88, 5, "clientReplyStatus: client didn't get all it expected"); |
62e76326 | 1189 | return STREAM_UNPLANNED_COMPLETE; |
1190 | } | |
1191 | ||
ca6d5de2 AR |
1192 | debugs(88, 5, "clientReplyStatus: stream complete; keepalive=" << |
1193 | http->request->flags.proxyKeepalive); | |
1194 | return STREAM_COMPLETE; | |
edce4d98 | 1195 | } |
62e76326 | 1196 | |
16611143 | 1197 | // XXX: Should this be checked earlier? We could return above w/o checking. |
1198 | if (reply->receivedBodyTooLarge(*http->request, http->out.offset - 4096)) { | |
b51aec66 | 1199 | /* 4096 is a margin for the HTTP headers included in out.offset */ |
bf8fe701 | 1200 | debugs(88, 5, "clientReplyStatus: client reply body is too large"); |
62e76326 | 1201 | return STREAM_FAILED; |
0e3be1ea | 1202 | } |
62e76326 | 1203 | |
edce4d98 | 1204 | return STREAM_NONE; |
1205 | } | |
1206 | ||
62e76326 | 1207 | /* Responses with no body will not have a content-type header, |
edce4d98 | 1208 | * which breaks the rep_mime_type acl, which |
1209 | * coincidentally, is the most common acl for reply access lists. | |
2f8abb64 | 1210 | * A better long term fix for this is to allow acl matches on the various |
26ac0430 AJ |
1211 | * status codes, and then supply a default ruleset that puts these |
1212 | * codes before any user defines access entries. That way the user | |
edce4d98 | 1213 | * can choose to block these responses where appropriate, but won't get |
1214 | * mysterious breakages. | |
1215 | */ | |
0655fa4d | 1216 | bool |
955394ce | 1217 | clientReplyContext::alwaysAllowResponse(Http::StatusCode sline) const |
edce4d98 | 1218 | { |
4ef4b952 | 1219 | bool result; |
1220 | ||
edce4d98 | 1221 | switch (sline) { |
62e76326 | 1222 | |
955394ce | 1223 | case Http::scContinue: |
62e76326 | 1224 | |
955394ce | 1225 | case Http::scSwitchingProtocols: |
62e76326 | 1226 | |
955394ce | 1227 | case Http::scProcessing: |
62e76326 | 1228 | |
955394ce | 1229 | case Http::scNoContent: |
62e76326 | 1230 | |
955394ce | 1231 | case Http::scNotModified: |
4ef4b952 | 1232 | result = true; |
62e76326 | 1233 | break; |
1234 | ||
edce4d98 | 1235 | default: |
4ef4b952 | 1236 | result = false; |
edce4d98 | 1237 | } |
4ef4b952 | 1238 | |
1239 | return result; | |
edce4d98 | 1240 | } |
1241 | ||
a5c8d64d AJ |
1242 | /** |
1243 | * Generate the reply headers sent to client. | |
1244 | * | |
1245 | * Filters out unwanted entries and hop-by-hop from original reply header | |
1246 | * then adds extra entries if we have more info than origin server | |
1247 | * then adds Squid specific entries | |
edce4d98 | 1248 | */ |
0655fa4d | 1249 | void |
1250 | clientReplyContext::buildReplyHeader() | |
edce4d98 | 1251 | { |
7dc5f514 | 1252 | HttpHeader *hdr = &reply->header; |
91369933 | 1253 | const bool is_hit = http->logType.isTcpHit(); |
190154cf | 1254 | HttpRequest *request = http->request; |
62e76326 | 1255 | |
096c9df3 | 1256 | if (is_hit || collapsedRevalidation == crSlave) |
789217a2 | 1257 | hdr->delById(Http::HdrType::SET_COOKIE); |
f89d4012 | 1258 | // TODO: RFC 2965 : Must honour Cache-Control: no-cache="set-cookie2" and remove header. |
62e76326 | 1259 | |
23c6d7e7 | 1260 | // if there is not configured a peer proxy with login=PASS or login=PASSTHRU option enabled |
dcf3665b | 1261 | // remove the Proxy-Authenticate header |
940307b9 | 1262 | if ( !request->peer_login || (strcmp(request->peer_login,"PASS") != 0 && strcmp(request->peer_login,"PASSTHRU") != 0)) { |
1263 | #if USE_ADAPTATION | |
1264 | // but allow adaptation services to authenticate clients | |
1265 | // via request satisfaction | |
1266 | if (!http->requestSatisfactionMode()) | |
1267 | #endif | |
1268 | reply->header.delById(Http::HdrType::PROXY_AUTHENTICATE); | |
1269 | } | |
dcf3665b | 1270 | |
2cdeea82 | 1271 | reply->header.removeHopByHopEntries(); |
4f1c93a7 EB |
1272 | // paranoid: ContentLengthInterpreter has cleaned non-generated replies |
1273 | reply->removeIrrelevantContentLength(); | |
62e76326 | 1274 | |
1275 | // if (request->range) | |
7dc5f514 | 1276 | // clientBuildRangeHeader(http, reply); |
a5c8d64d | 1277 | |
edce4d98 | 1278 | /* |
1279 | * Add a estimated Age header on cache hits. | |
1280 | */ | |
1281 | if (is_hit) { | |
62e76326 | 1282 | /* |
1283 | * Remove any existing Age header sent by upstream caches | |
1284 | * (note that the existing header is passed along unmodified | |
1285 | * on cache misses) | |
1286 | */ | |
789217a2 | 1287 | hdr->delById(Http::HdrType::AGE); |
62e76326 | 1288 | /* |
1289 | * This adds the calculated object age. Note that the details of the | |
1290 | * age calculation is performed by adjusting the timestamp in | |
3900307b | 1291 | * StoreEntry::timestampsSet(), not here. |
62e76326 | 1292 | */ |
bbe58ab5 | 1293 | if (EBIT_TEST(http->storeEntry()->flags, ENTRY_SPECIAL)) { |
789217a2 | 1294 | hdr->delById(Http::HdrType::DATE); |
81ab22b6 | 1295 | hdr->putTime(Http::HdrType::DATE, squid_curtime); |
cda7024f | 1296 | } else if (http->getConn() && http->getConn()->port->actAsOrigin) { |
90fa5816 | 1297 | // Swap the Date: header to current time if we are simulating an origin |
789217a2 | 1298 | HttpHeaderEntry *h = hdr->findEntry(Http::HdrType::DATE); |
fd49b08b A |
1299 | if (h) |
1300 | hdr->putExt("X-Origin-Date", h->value.termedBuf()); | |
789217a2 | 1301 | hdr->delById(Http::HdrType::DATE); |
81ab22b6 | 1302 | hdr->putTime(Http::HdrType::DATE, squid_curtime); |
789217a2 | 1303 | h = hdr->findEntry(Http::HdrType::EXPIRES); |
fd49b08b A |
1304 | if (h && http->storeEntry()->expires >= 0) { |
1305 | hdr->putExt("X-Origin-Expires", h->value.termedBuf()); | |
789217a2 | 1306 | hdr->delById(Http::HdrType::EXPIRES); |
81ab22b6 | 1307 | hdr->putTime(Http::HdrType::EXPIRES, squid_curtime + http->storeEntry()->expires - http->storeEntry()->timestamp); |
fd49b08b | 1308 | } |
90fa5816 AJ |
1309 | if (http->storeEntry()->timestamp <= squid_curtime) { |
1310 | // put X-Cache-Age: instead of Age: | |
fd49b08b | 1311 | char age[64]; |
fe3f0034 | 1312 | snprintf(age, sizeof(age), "%" PRId64, static_cast<int64_t>(squid_curtime - http->storeEntry()->timestamp)); |
fd49b08b A |
1313 | hdr->putExt("X-Cache-Age", age); |
1314 | } | |
a81e7089 | 1315 | } else if (http->storeEntry()->timestamp <= squid_curtime) { |
789217a2 | 1316 | hdr->putInt(Http::HdrType::AGE, |
a9925b40 | 1317 | squid_curtime - http->storeEntry()->timestamp); |
62e76326 | 1318 | /* Signal old objects. NB: rfc 2616 is not clear, |
1319 | * by implication, on whether we should do this to all | |
1320 | * responses, or only cache hits. | |
2f8abb64 | 1321 | * 14.46 states it ONLY applies for heuristically calculated |
62e76326 | 1322 | * freshness values, 13.2.4 doesn't specify the same limitation. |
1323 | * We interpret RFC 2616 under the combination. | |
1324 | */ | |
1325 | /* TODO: if maxage or s-maxage is present, don't do this */ | |
1326 | ||
b56b37cf AJ |
1327 | if (squid_curtime - http->storeEntry()->timestamp >= 86400) |
1328 | hdr->putWarning(113, "This cache hit is still fresh and more than 1 day old"); | |
62e76326 | 1329 | } |
a5c8d64d | 1330 | } |
528b2c61 | 1331 | |
a5c8d64d AJ |
1332 | /* RFC 2616: Section 14.18 |
1333 | * | |
1334 | * Add a Date: header if missing. | |
1335 | * We have access to a clock therefore are required to amend any shortcoming in servers. | |
1336 | * | |
1337 | * NP: done after Age: to prevent ENTRY_SPECIAL double-handling this header. | |
1338 | */ | |
789217a2 | 1339 | if ( !hdr->has(Http::HdrType::DATE) ) { |
f0dedeb5 | 1340 | if (!http->storeEntry()) |
81ab22b6 | 1341 | hdr->putTime(Http::HdrType::DATE, squid_curtime); |
f0dedeb5 | 1342 | else if (http->storeEntry()->timestamp > 0) |
81ab22b6 | 1343 | hdr->putTime(Http::HdrType::DATE, http->storeEntry()->timestamp); |
f0dedeb5 | 1344 | else { |
d9d98242 | 1345 | debugs(88,DBG_IMPORTANT,"BUG 3279: HTTP reply without Date:"); |
e78ae89a AJ |
1346 | /* dump something useful about the problem */ |
1347 | http->storeEntry()->dump(DBG_IMPORTANT); | |
f0dedeb5 | 1348 | } |
edce4d98 | 1349 | } |
62e76326 | 1350 | |
bcfba8bd | 1351 | // add Warnings required by RFC 2616 if serving a stale hit |
91369933 | 1352 | if (http->request->flags.staleIfHit && http->logType.isTcpHit()) { |
bcfba8bd | 1353 | hdr->putWarning(110, "Response is stale"); |
450fe1cb | 1354 | if (http->request->flags.needValidation) |
bcfba8bd AR |
1355 | hdr->putWarning(111, "Revalidation failed"); |
1356 | } | |
1357 | ||
0bd9aa82 | 1358 | /* Filter unproxyable authentication types */ |
91369933 | 1359 | if (http->logType.oldType != LOG_TCP_DENIED && |
789217a2 | 1360 | hdr->has(Http::HdrType::WWW_AUTHENTICATE)) { |
62e76326 | 1361 | HttpHeaderPos pos = HttpHeaderInitPos; |
1362 | HttpHeaderEntry *e; | |
1363 | ||
26ac0430 | 1364 | int connection_auth_blocked = 0; |
a9925b40 | 1365 | while ((e = hdr->getEntry(&pos))) { |
789217a2 | 1366 | if (e->id == Http::HdrType::WWW_AUTHENTICATE) { |
5b4117d8 | 1367 | const char *value = e->value.rawBuf(); |
62e76326 | 1368 | |
1369 | if ((strncasecmp(value, "NTLM", 4) == 0 && | |
1370 | (value[4] == '\0' || value[4] == ' ')) | |
1371 | || | |
1372 | (strncasecmp(value, "Negotiate", 9) == 0 && | |
d67acb4e | 1373 | (value[9] == '\0' || value[9] == ' ')) |
26ac0430 AJ |
1374 | || |
1375 | (strncasecmp(value, "Kerberos", 8) == 0 && | |
1376 | (value[8] == '\0' || value[8] == ' '))) { | |
450fe1cb | 1377 | if (request->flags.connectionAuthDisabled) { |
26ac0430 | 1378 | hdr->delAt(pos, connection_auth_blocked); |
d67acb4e AJ |
1379 | continue; |
1380 | } | |
e857372a | 1381 | request->flags.mustKeepalive = true; |
45e5102d | 1382 | if (!request->flags.accelerated && !request->flags.intercepted) { |
789217a2 | 1383 | httpHeaderPutStrf(hdr, Http::HdrType::PROXY_SUPPORT, "Session-Based-Authentication"); |
26ac0430 | 1384 | /* |
f7a2e5a5 | 1385 | We send "Connection: Proxy-Support" header to mark |
26ac0430 AJ |
1386 | Proxy-Support as a hop-by-hop header for intermediaries that do not |
1387 | understand the semantics of this header. The RFC should have included | |
1388 | this recommendation. | |
1389 | */ | |
789217a2 | 1390 | httpHeaderPutStrf(hdr, Http::HdrType::CONNECTION, "Proxy-support"); |
d67acb4e AJ |
1391 | } |
1392 | break; | |
26ac0430 | 1393 | } |
62e76326 | 1394 | } |
1395 | } | |
d67acb4e AJ |
1396 | |
1397 | if (connection_auth_blocked) | |
ba9fb01d | 1398 | hdr->refreshMask(); |
0bd9aa82 | 1399 | } |
62e76326 | 1400 | |
2f1431ea | 1401 | #if USE_AUTH |
edce4d98 | 1402 | /* Handle authentication headers */ |
91369933 | 1403 | if (http->logType.oldType == LOG_TCP_DENIED && |
9b769c67 AJ |
1404 | ( reply->sline.status() == Http::scProxyAuthenticationRequired || |
1405 | reply->sline.status() == Http::scUnauthorized) | |
26ac0430 AJ |
1406 | ) { |
1407 | /* Add authentication header */ | |
9837567d | 1408 | /* TODO: alter errorstate to be accel on|off aware. The 0 on the next line |
26ac0430 AJ |
1409 | * depends on authenticate behaviour: all schemes to date send no extra |
1410 | * data on 407/401 responses, and do not check the accel state on 401/407 | |
1411 | * responses | |
1412 | */ | |
923a8d89 | 1413 | Auth::UserRequest::AddReplyAuthHeader(reply, request->auth_user_request, request, 0, 1); |
a33a428a | 1414 | } else if (request->auth_user_request != NULL) |
923a8d89 | 1415 | Auth::UserRequest::AddReplyAuthHeader(reply, request->auth_user_request, request, http->flags.accel, 0); |
2f1431ea | 1416 | #endif |
62e76326 | 1417 | |
5fdc5490 AJ |
1418 | SBuf cacheStatus(uniqueHostname()); |
1419 | if (const auto hitOrFwd = http->logType.cacheStatusSource()) | |
1420 | cacheStatus.append(hitOrFwd); | |
1421 | if (firstStoreLookup_) { | |
1422 | cacheStatus.append(";detail="); | |
1423 | cacheStatus.append(firstStoreLookup_); | |
1424 | } | |
1425 | // TODO: Remove c_str() after converting HttpHeaderEntry::value to SBuf | |
1426 | hdr->putStr(Http::HdrType::CACHE_STATUS, cacheStatus.c_str()); | |
62e76326 | 1427 | |
45e5102d | 1428 | const bool maySendChunkedReply = !request->multipartRangeRequest() && |
8774ca07 | 1429 | reply->sline.version.protocol == AnyP::PROTO_HTTP && // response is HTTP |
2592bc70 | 1430 | (request->http_ver >= Http::ProtocolVersion(1,1)); |
4ad60609 | 1431 | |
f529bb20 | 1432 | /* Check whether we should send keep-alive */ |
9b769c67 | 1433 | if (!Config.onoff.error_pconns && reply->sline.status() >= 400 && !request->flags.mustKeepalive) { |
bf8fe701 | 1434 | debugs(33, 3, "clientBuildReplyHeader: Error, don't keep-alive"); |
e857372a | 1435 | request->flags.proxyKeepalive = false; |
450fe1cb | 1436 | } else if (!Config.onoff.client_pconns && !request->flags.mustKeepalive) { |
17b57873 | 1437 | debugs(33, 2, "clientBuildReplyHeader: Connection Keep-Alive not requested by admin or client"); |
e857372a | 1438 | request->flags.proxyKeepalive = false; |
450fe1cb | 1439 | } else if (request->flags.proxyKeepalive && shutting_down) { |
f529bb20 | 1440 | debugs(88, 3, "clientBuildReplyHeader: Shutting down, don't keep-alive."); |
e857372a | 1441 | request->flags.proxyKeepalive = false; |
450fe1cb | 1442 | } else if (request->flags.connectionAuth && !reply->keep_alive) { |
26ac0430 | 1443 | debugs(33, 2, "clientBuildReplyHeader: Connection oriented auth but server side non-persistent"); |
e857372a | 1444 | request->flags.proxyKeepalive = false; |
4ad60609 | 1445 | } else if (reply->bodySize(request->method) < 0 && !maySendChunkedReply) { |
17b57873 | 1446 | debugs(88, 3, "clientBuildReplyHeader: can't keep-alive, unknown body size" ); |
e857372a | 1447 | request->flags.proxyKeepalive = false; |
450fe1cb | 1448 | } else if (fdUsageHigh()&& !request->flags.mustKeepalive) { |
17b57873 | 1449 | debugs(88, 3, "clientBuildReplyHeader: Not many unused FDs, can't keep-alive"); |
e857372a | 1450 | request->flags.proxyKeepalive = false; |
450fe1cb | 1451 | } else if (request->flags.sslBumped && !reply->persistent()) { |
49f1c7f7 AR |
1452 | // We do not really have to close, but we pretend we are a tunnel. |
1453 | debugs(88, 3, "clientBuildReplyHeader: bumped reply forces close"); | |
e857372a | 1454 | request->flags.proxyKeepalive = false; |
693cb033 CT |
1455 | } else if (request->pinnedConnection() && !reply->persistent()) { |
1456 | // The peer wants to close the pinned connection | |
1457 | debugs(88, 3, "pinned reply forces close"); | |
e857372a | 1458 | request->flags.proxyKeepalive = false; |
c5c06f02 CT |
1459 | } else if (http->getConn()) { |
1460 | ConnStateData * conn = http->getConn(); | |
cda7024f | 1461 | if (!Comm::IsConnOpen(conn->port->listenConn)) { |
c5c06f02 CT |
1462 | // The listening port closed because of a reconfigure |
1463 | debugs(88, 3, "listening port closed"); | |
1464 | request->flags.proxyKeepalive = false; | |
c5c06f02 | 1465 | } |
17b57873 | 1466 | } |
d67acb4e | 1467 | |
4ad60609 | 1468 | // Decide if we send chunked reply |
95172eea | 1469 | if (maySendChunkedReply && reply->bodySize(request->method) < 0) { |
4ad60609 | 1470 | debugs(88, 3, "clientBuildReplyHeader: chunked reply"); |
e857372a | 1471 | request->flags.chunkedReply = true; |
789217a2 | 1472 | hdr->putStr(Http::HdrType::TRANSFER_ENCODING, "chunked"); |
4ad60609 | 1473 | } |
f529bb20 | 1474 | |
90be6ff5 EB |
1475 | hdr->addVia(reply->sline.version); |
1476 | ||
95e78500 | 1477 | /* Signal keep-alive or close explicitly */ |
789217a2 | 1478 | hdr->putStr(Http::HdrType::CONNECTION, request->flags.proxyKeepalive ? "keep-alive" : "close"); |
62e76326 | 1479 | |
edce4d98 | 1480 | #if ADD_X_REQUEST_URI |
1481 | /* | |
1482 | * Knowing the URI of the request is useful when debugging persistent | |
1483 | * connections in a client; we cannot guarantee the order of http headers, | |
1484 | * but X-Request-URI is likely to be the very last header to ease use from a | |
1485 | * debugger [hdr->entries.count-1]. | |
1486 | */ | |
789217a2 | 1487 | hdr->putStr(Http::HdrType::X_REQUEST_URI, |
a9925b40 | 1488 | http->memOjbect()->url ? http->memObject()->url : http->uri); |
62e76326 | 1489 | |
edce4d98 | 1490 | #endif |
62e76326 | 1491 | |
45cca89d | 1492 | /* Surrogate-Control requires Surrogate-Capability from upstream to pass on */ |
789217a2 FC |
1493 | if ( hdr->has(Http::HdrType::SURROGATE_CONTROL) ) { |
1494 | if (!request->header.has(Http::HdrType::SURROGATE_CAPABILITY)) { | |
1495 | hdr->delById(Http::HdrType::SURROGATE_CONTROL); | |
45cca89d AJ |
1496 | } |
1497 | /* TODO: else case: drop any controls intended specifically for our surrogate ID */ | |
1498 | } | |
1499 | ||
cde8f31b | 1500 | httpHdrMangleList(hdr, request, http->al, ROR_REPLY); |
edce4d98 | 1501 | } |
1502 | ||
0655fa4d | 1503 | void |
b297bcd0 | 1504 | clientReplyContext::cloneReply() |
edce4d98 | 1505 | { |
7dc5f514 | 1506 | assert(reply == NULL); |
0655fa4d | 1507 | |
66d51f4f | 1508 | reply = http->storeEntry()->mem().freshestReply().clone(); |
b248c2a3 | 1509 | HTTPMSGLOCK(reply); |
7dc5f514 | 1510 | |
49f57088 EB |
1511 | http->al->reply = reply; |
1512 | ||
8774ca07 | 1513 | if (reply->sline.version.protocol == AnyP::PROTO_HTTP) { |
2592bc70 AJ |
1514 | /* RFC 2616 requires us to advertise our version (but only on real HTTP traffic) */ |
1515 | reply->sline.version = Http::ProtocolVersion(); | |
e77d7ef0 | 1516 | } |
0655fa4d | 1517 | |
1518 | /* do header conversions */ | |
1519 | buildReplyHeader(); | |
edce4d98 | 1520 | } |
1521 | ||
7681a3b9 AR |
1522 | /// Safely disposes of an entry pointing to a cache hit that we do not want. |
1523 | /// We cannot just ignore the entry because it may be locking or otherwise | |
1524 | /// holding an associated cache resource of some sort. | |
1525 | void | |
1526 | clientReplyContext::forgetHit() | |
1527 | { | |
1528 | StoreEntry *e = http->storeEntry(); | |
1529 | assert(e); // or we are not dealing with a hit | |
1530 | // We probably have not locked the entry earlier, unfortunately. We lock it | |
1531 | // now so that we can unlock two lines later (and trigger cleanup). | |
1532 | // Ideally, ClientHttpRequest::storeEntry() should lock/unlock, but it is | |
1533 | // used so inconsistently that simply adding locking there leads to bugs. | |
1bfe9ade | 1534 | e->lock("clientReplyContext::forgetHit"); |
7681a3b9 | 1535 | http->storeEntry(NULL); |
1bfe9ade | 1536 | e->unlock("clientReplyContext::forgetHit"); // may delete e |
7681a3b9 AR |
1537 | } |
1538 | ||
e6ccf245 | 1539 | void |
1540 | clientReplyContext::identifyStoreObject() | |
edce4d98 | 1541 | { |
190154cf | 1542 | HttpRequest *r = http->request; |
62e76326 | 1543 | |
f8acd68f GD |
1544 | // client sent CC:no-cache or some other condition has been |
1545 | // encountered which prevents delivering a public/cached object. | |
1546 | if (!r->flags.noCache || r->flags.internal) { | |
7976fed3 EB |
1547 | const auto e = storeGetPublicByRequest(r); |
1548 | identifyFoundObject(e, storeLookupString(bool(e))); | |
559da936 | 1549 | } else { |
5fdc5490 | 1550 | // "external" no-cache requests skip Store lookups |
7976fed3 | 1551 | identifyFoundObject(nullptr, "no-cache"); |
559da936 | 1552 | } |
e6ccf245 | 1553 | } |
1554 | ||
7d5f62a4 AJ |
1555 | /** |
1556 | * Check state of the current StoreEntry object. | |
1557 | * to see if we can determine the final status of the request. | |
1558 | */ | |
e6ccf245 | 1559 | void |
7976fed3 | 1560 | clientReplyContext::identifyFoundObject(StoreEntry *newEntry, const char *detail) |
e6ccf245 | 1561 | { |
7976fed3 EB |
1562 | detailStoreLookup(detail); |
1563 | ||
190154cf | 1564 | HttpRequest *r = http->request; |
69565793 EB |
1565 | http->storeEntry(newEntry); |
1566 | const auto e = http->storeEntry(); | |
a12a049a | 1567 | |
7d5f62a4 | 1568 | /* Release IP-cache entries on reload */ |
d85b8894 | 1569 | /** \li If the request has no-cache flag set or some no_cache HACK in operation we |
7d5f62a4 AJ |
1570 | * 'invalidate' the cached IP entries for this request ??? |
1571 | */ | |
17852883 | 1572 | if (r->flags.noCache || r->flags.noCacheHack()) |
5c51bffb | 1573 | ipcacheInvalidateNegative(r->url.host()); |
45e5102d | 1574 | |
69565793 | 1575 | if (!e) { |
d85b8894 | 1576 | /** \li If no StoreEntry object is current assume this object isn't in the cache set MISS*/ |
e4d13993 | 1577 | debugs(85, 3, "StoreEntry is NULL - MISS"); |
d2a6dcba | 1578 | http->logType.update(LOG_TCP_MISS); |
62e76326 | 1579 | doGetMoreData(); |
1580 | return; | |
edce4d98 | 1581 | } |
62e76326 | 1582 | |
edce4d98 | 1583 | if (Config.onoff.offline) { |
d85b8894 | 1584 | /** \li If we are running in offline mode set to HIT */ |
e4d13993 | 1585 | debugs(85, 3, "offline HIT " << *e); |
d2a6dcba | 1586 | http->logType.update(LOG_TCP_HIT); |
62e76326 | 1587 | doGetMoreData(); |
1588 | return; | |
edce4d98 | 1589 | } |
62e76326 | 1590 | |
edce4d98 | 1591 | if (http->redirect.status) { |
d85b8894 | 1592 | /** \li If redirection status is True force this to be a MISS */ |
539283df | 1593 | debugs(85, 3, "REDIRECT status forced StoreEntry to NULL (no body on 3XX responses) " << *e); |
7681a3b9 | 1594 | forgetHit(); |
d2a6dcba | 1595 | http->logType.update(LOG_TCP_REDIRECT); |
62e76326 | 1596 | doGetMoreData(); |
1597 | return; | |
edce4d98 | 1598 | } |
62e76326 | 1599 | |
3900307b | 1600 | if (!e->validToSend()) { |
e4d13993 | 1601 | debugs(85, 3, "!storeEntryValidToSend MISS " << *e); |
7681a3b9 | 1602 | forgetHit(); |
d2a6dcba | 1603 | http->logType.update(LOG_TCP_MISS); |
62e76326 | 1604 | doGetMoreData(); |
1605 | return; | |
edce4d98 | 1606 | } |
62e76326 | 1607 | |
edce4d98 | 1608 | if (EBIT_TEST(e->flags, ENTRY_SPECIAL)) { |
d85b8894 | 1609 | /* \li Special entries are always hits, no matter what the client says */ |
e4d13993 | 1610 | debugs(85, 3, "ENTRY_SPECIAL HIT " << *e); |
d2a6dcba | 1611 | http->logType.update(LOG_TCP_HIT); |
62e76326 | 1612 | doGetMoreData(); |
1613 | return; | |
edce4d98 | 1614 | } |
62e76326 | 1615 | |
450fe1cb | 1616 | if (r->flags.noCache) { |
e4d13993 | 1617 | debugs(85, 3, "no-cache REFRESH MISS " << *e); |
7681a3b9 | 1618 | forgetHit(); |
d2a6dcba | 1619 | http->logType.update(LOG_TCP_CLIENT_REFRESH_MISS); |
62e76326 | 1620 | doGetMoreData(); |
1621 | return; | |
edce4d98 | 1622 | } |
62e76326 | 1623 | |
d2a6dcba | 1624 | if (e->hittingRequiresCollapsing() && !startCollapsingOn(*e, false)) { |
819be284 EB |
1625 | debugs(85, 3, "prohibited CF MISS " << *e); |
1626 | forgetHit(); | |
d2a6dcba | 1627 | http->logType.update(LOG_TCP_MISS); |
819be284 EB |
1628 | doGetMoreData(); |
1629 | return; | |
1630 | } | |
1631 | ||
e4d13993 | 1632 | debugs(85, 3, "default HIT " << *e); |
d2a6dcba | 1633 | http->logType.update(LOG_TCP_HIT); |
e6ccf245 | 1634 | doGetMoreData(); |
edce4d98 | 1635 | } |
1636 | ||
5fdc5490 AJ |
1637 | /// remembers the very first Store lookup classification, ignoring the rest |
1638 | void | |
1639 | clientReplyContext::detailStoreLookup(const char *detail) | |
1640 | { | |
1641 | if (!firstStoreLookup_) { | |
1642 | debugs(85, 7, detail); | |
1643 | firstStoreLookup_ = detail; | |
1644 | } else { | |
1645 | debugs(85, 7, "ignores " << detail << " after " << firstStoreLookup_); | |
1646 | } | |
1647 | } | |
1648 | ||
d85b8894 AJ |
1649 | /** |
1650 | * Request more data from the store for the client Stream | |
edce4d98 | 1651 | * This is *the* entry point to this module. |
1652 | * | |
1653 | * Preconditions: | |
d85b8894 AJ |
1654 | * - This is the head of the list. |
1655 | * - There is at least one more node. | |
1656 | * - Data context is not null | |
edce4d98 | 1657 | */ |
1658 | void | |
59a1efb2 | 1659 | clientGetMoreData(clientStreamNode * aNode, ClientHttpRequest * http) |
edce4d98 | 1660 | { |
edce4d98 | 1661 | /* Test preconditions */ |
e6ccf245 | 1662 | assert(aNode != NULL); |
1663 | assert(cbdataReferenceValid(aNode)); | |
e6ccf245 | 1664 | assert(aNode->node.prev == NULL); |
1665 | assert(aNode->node.next != NULL); | |
0655fa4d | 1666 | clientReplyContext *context = dynamic_cast<clientReplyContext *>(aNode->data.getRaw()); |
1667 | assert (context); | |
edce4d98 | 1668 | assert(context->http == http); |
1669 | ||
0655fa4d | 1670 | clientStreamNode *next = ( clientStreamNode *)aNode->node.next->data; |
62e76326 | 1671 | |
edce4d98 | 1672 | if (!context->ourNode) |
62e76326 | 1673 | context->ourNode = aNode; |
1674 | ||
e6ccf245 | 1675 | /* no cbdatareference, this is only used once, and safely */ |
edce4d98 | 1676 | if (context->flags.storelogiccomplete) { |
62e76326 | 1677 | StoreIOBuffer tempBuffer; |
1678 | tempBuffer.offset = next->readBuffer.offset + context->headers_sz; | |
1679 | tempBuffer.length = next->readBuffer.length; | |
1680 | tempBuffer.data = next->readBuffer.data; | |
1681 | ||
86a2f789 | 1682 | storeClientCopy(context->sc, http->storeEntry(), |
0655fa4d | 1683 | tempBuffer, clientReplyContext::SendMoreData, context); |
62e76326 | 1684 | return; |
edce4d98 | 1685 | } |
62e76326 | 1686 | |
c2a7cefd | 1687 | if (context->http->request->method == Http::METHOD_PURGE) { |
62e76326 | 1688 | context->purgeRequest(); |
1689 | return; | |
edce4d98 | 1690 | } |
62e76326 | 1691 | |
e18b8316 | 1692 | // OPTIONS with Max-Forwards:0 handled in clientProcessRequest() |
fc90edc3 | 1693 | |
c2a7cefd | 1694 | if (context->http->request->method == Http::METHOD_TRACE) { |
789217a2 | 1695 | if (context->http->request->header.getInt64(Http::HdrType::MAX_FORWARDS) == 0) { |
0655fa4d | 1696 | context->traceReply(aNode); |
62e76326 | 1697 | return; |
1698 | } | |
1699 | ||
1700 | /* continue forwarding, not finished yet. */ | |
d2a6dcba | 1701 | http->logType.update(LOG_TCP_MISS); |
62e76326 | 1702 | |
1703 | context->doGetMoreData(); | |
edce4d98 | 1704 | } else |
62e76326 | 1705 | context->identifyStoreObject(); |
e6ccf245 | 1706 | } |
1707 | ||
1708 | void | |
1709 | clientReplyContext::doGetMoreData() | |
1710 | { | |
edce4d98 | 1711 | /* We still have to do store logic processing - vary, cache hit etc */ |
86a2f789 | 1712 | if (http->storeEntry() != NULL) { |
62e76326 | 1713 | /* someone found the object in the cache for us */ |
8bcf08e0 | 1714 | StoreIOBuffer localTempBuffer; |
34266cde | 1715 | |
1bfe9ade | 1716 | http->storeEntry()->lock("clientReplyContext::doGetMoreData"); |
62e76326 | 1717 | |
76d61119 | 1718 | http->storeEntry()->ensureMemObject(storeId(), http->log_uri, http->request->method); |
62e76326 | 1719 | |
86a2f789 | 1720 | sc = storeClientListAdd(http->storeEntry(), this); |
9a0a18de | 1721 | #if USE_DELAY_POOLS |
62e76326 | 1722 | sc->setDelayId(DelayId::DelayClient(http)); |
edce4d98 | 1723 | #endif |
62e76326 | 1724 | |
91369933 | 1725 | assert(http->logType.oldType == LOG_TCP_HIT); |
62e76326 | 1726 | reqofs = 0; |
1727 | /* guarantee nothing has been sent yet! */ | |
1728 | assert(http->out.size == 0); | |
1729 | assert(http->out.offset == 0); | |
425de4c8 | 1730 | |
6b4edefb CT |
1731 | if (ConnStateData *conn = http->getConn()) { |
1732 | if (Ip::Qos::TheConfig.isHitTosActive()) { | |
1733 | Ip::Qos::doTosLocalHit(conn->clientConnection); | |
1734 | } | |
425de4c8 | 1735 | |
6b4edefb CT |
1736 | if (Ip::Qos::TheConfig.isHitNfmarkActive()) { |
1737 | Ip::Qos::doNfmarkLocalHit(conn->clientConnection); | |
1738 | } | |
b86ab75b | 1739 | } |
425de4c8 | 1740 | |
8bcf08e0 FC |
1741 | localTempBuffer.offset = reqofs; |
1742 | localTempBuffer.length = getNextNode()->readBuffer.length; | |
1743 | localTempBuffer.data = getNextNode()->readBuffer.data; | |
1744 | storeClientCopy(sc, http->storeEntry(), localTempBuffer, CacheHit, this); | |
edce4d98 | 1745 | } else { |
62e76326 | 1746 | /* MISS CASE, http->logType is already set! */ |
0655fa4d | 1747 | processMiss(); |
edce4d98 | 1748 | } |
1749 | } | |
1750 | ||
d85b8894 | 1751 | /** The next node has removed itself from the stream. */ |
edce4d98 | 1752 | void |
59a1efb2 | 1753 | clientReplyDetach(clientStreamNode * node, ClientHttpRequest * http) |
edce4d98 | 1754 | { |
d85b8894 | 1755 | /** detach from the stream */ |
edce4d98 | 1756 | clientStreamDetach(node, http); |
1757 | } | |
1758 | ||
d85b8894 AJ |
1759 | /** |
1760 | * Accepts chunk of a http message in buf, parses prefix, filters headers and | |
edce4d98 | 1761 | * such, writes processed message to the message recipient |
1762 | */ | |
1763 | void | |
0655fa4d | 1764 | clientReplyContext::SendMoreData(void *data, StoreIOBuffer result) |
edce4d98 | 1765 | { |
e6ccf245 | 1766 | clientReplyContext *context = static_cast<clientReplyContext *>(data); |
528b2c61 | 1767 | context->sendMoreData (result); |
1768 | } | |
1769 | ||
1770 | void | |
1771 | clientReplyContext::makeThisHead() | |
1772 | { | |
2f8abb64 | 1773 | /* At least, I think that's what this does */ |
528b2c61 | 1774 | dlinkDelete(&http->active, &ClientActiveRequests); |
1775 | dlinkAdd(http, &http->active, &ClientActiveRequests); | |
1776 | } | |
1777 | ||
1778 | bool | |
1779 | clientReplyContext::errorInStream(StoreIOBuffer const &result, size_t const &sizeToProcess)const | |
1780 | { | |
1781 | return /* aborted request */ | |
86a2f789 | 1782 | (http->storeEntry() && EBIT_TEST(http->storeEntry()->flags, ENTRY_ABORTED)) || |
62e76326 | 1783 | /* Upstream read error */ (result.flags.error) || |
1784 | /* Upstream EOF */ (sizeToProcess == 0); | |
528b2c61 | 1785 | } |
1786 | ||
1787 | void | |
1788 | clientReplyContext::sendStreamError(StoreIOBuffer const &result) | |
1789 | { | |
d85b8894 | 1790 | /** call clientWriteComplete so the client socket gets closed |
af6a12ee | 1791 | * |
d85b8894 | 1792 | * We call into the stream, because we don't know that there is a |
528b2c61 | 1793 | * client socket! |
1794 | */ | |
61beade2 | 1795 | debugs(88, 5, "A stream error has occurred, marking as complete and sending no data."); |
8bcf08e0 | 1796 | StoreIOBuffer localTempBuffer; |
528b2c61 | 1797 | flags.complete = 1; |
e857372a | 1798 | http->request->flags.streamError = true; |
8bcf08e0 | 1799 | localTempBuffer.flags.error = result.flags.error; |
528b2c61 | 1800 | clientStreamCallback((clientStreamNode*)http->client_stream.head->data, http, NULL, |
8bcf08e0 | 1801 | localTempBuffer); |
528b2c61 | 1802 | } |
1803 | ||
1804 | void | |
1805 | clientReplyContext::pushStreamData(StoreIOBuffer const &result, char *source) | |
1806 | { | |
8bcf08e0 | 1807 | StoreIOBuffer localTempBuffer; |
62e76326 | 1808 | |
528b2c61 | 1809 | if (result.length == 0) { |
bf8fe701 | 1810 | debugs(88, 5, "clientReplyContext::pushStreamData: marking request as complete due to 0 length store result"); |
62e76326 | 1811 | flags.complete = 1; |
528b2c61 | 1812 | } |
62e76326 | 1813 | |
43ae1d95 | 1814 | assert(result.offset - headers_sz == next()->readBuffer.offset); |
8bcf08e0 FC |
1815 | localTempBuffer.offset = result.offset - headers_sz; |
1816 | localTempBuffer.length = result.length; | |
62e76326 | 1817 | |
8bcf08e0 FC |
1818 | if (localTempBuffer.length) |
1819 | localTempBuffer.data = source; | |
62e76326 | 1820 | |
528b2c61 | 1821 | clientStreamCallback((clientStreamNode*)http->client_stream.head->data, http, NULL, |
8bcf08e0 | 1822 | localTempBuffer); |
528b2c61 | 1823 | } |
1824 | ||
1825 | clientStreamNode * | |
1826 | clientReplyContext::next() const | |
1827 | { | |
1828 | assert ( (clientStreamNode*)http->client_stream.head->next->data == getNextNode()); | |
1829 | return getNextNode(); | |
1830 | } | |
1831 | ||
b51aec66 | 1832 | void |
16611143 | 1833 | clientReplyContext::sendBodyTooLargeError() |
b51aec66 | 1834 | { |
d2a6dcba | 1835 | http->logType.update(LOG_TCP_DENIED_REPLY); |
955394ce | 1836 | ErrorState *err = clientBuildError(ERR_TOO_BIG, Http::scForbidden, NULL, |
7976fed3 | 1837 | http->getConn(), http->request, http->al); |
16611143 | 1838 | removeClientStoreReference(&(sc), http); |
1839 | HTTPMSGUNLOCK(reply); | |
1840 | startError(err); | |
26ac0430 | 1841 | |
b51aec66 | 1842 | } |
1843 | ||
79c8035e AR |
1844 | /// send 412 (Precondition Failed) to client |
1845 | void | |
1846 | clientReplyContext::sendPreconditionFailedError() | |
1847 | { | |
d2a6dcba | 1848 | http->logType.update(LOG_TCP_HIT); |
79c8035e | 1849 | ErrorState *const err = |
955394ce | 1850 | clientBuildError(ERR_PRECONDITION_FAILED, Http::scPreconditionFailed, |
7976fed3 | 1851 | nullptr, http->getConn(), http->request, http->al); |
79c8035e AR |
1852 | removeClientStoreReference(&sc, http); |
1853 | HTTPMSGUNLOCK(reply); | |
1854 | startError(err); | |
1855 | } | |
1856 | ||
a2bd457d AJ |
1857 | /// send 304 (Not Modified) to client |
1858 | void | |
1859 | clientReplyContext::sendNotModified() | |
1860 | { | |
1861 | StoreEntry *e = http->storeEntry(); | |
1862 | const time_t timestamp = e->timestamp; | |
66d51f4f | 1863 | const auto temprep = e->mem().freshestReply().make304(); |
787ea68c GD |
1864 | // log as TCP_INM_HIT if code 304 generated for |
1865 | // If-None-Match request | |
1866 | if (!http->request->flags.ims) | |
d2a6dcba | 1867 | http->logType.update(LOG_TCP_INM_HIT); |
787ea68c | 1868 | else |
d2a6dcba | 1869 | http->logType.update(LOG_TCP_IMS_HIT); |
a2bd457d | 1870 | removeClientStoreReference(&sc, http); |
f206b652 | 1871 | createStoreEntry(http->request->method, RequestFlags()); |
a2bd457d AJ |
1872 | e = http->storeEntry(); |
1873 | // Copy timestamp from the original entry so the 304 | |
1874 | // reply has a meaningful Age: header. | |
90fa5816 | 1875 | e->timestampsSet(); |
a2bd457d AJ |
1876 | e->timestamp = timestamp; |
1877 | e->replaceHttpReply(temprep); | |
1878 | e->complete(); | |
1879 | /* | |
1880 | * TODO: why put this in the store and then serialise it and | |
1881 | * then parse it again. Simply mark the request complete in | |
1882 | * our context and write the reply struct to the client side. | |
1883 | */ | |
1884 | triggerInitialStoreRead(); | |
1885 | } | |
1886 | ||
1887 | /// send 304 (Not Modified) or 412 (Precondition Failed) to client | |
1888 | /// depending on request method | |
1889 | void | |
1890 | clientReplyContext::sendNotModifiedOrPreconditionFailedError() | |
1891 | { | |
c2a7cefd AJ |
1892 | if (http->request->method == Http::METHOD_GET || |
1893 | http->request->method == Http::METHOD_HEAD) | |
a2bd457d AJ |
1894 | sendNotModified(); |
1895 | else | |
1896 | sendPreconditionFailedError(); | |
1897 | } | |
1898 | ||
4993f571 | 1899 | void |
1900 | clientReplyContext::processReplyAccess () | |
1901 | { | |
b50e327b | 1902 | /* NP: this should probably soft-fail to a zero-sized-reply error ?? */ |
7dc5f514 | 1903 | assert(reply); |
b50e327b AJ |
1904 | |
1905 | /** Don't block our own responses or HTTP status messages */ | |
91369933 AJ |
1906 | if (http->logType.oldType == LOG_TCP_DENIED || |
1907 | http->logType.oldType == LOG_TCP_DENIED_REPLY || | |
9b769c67 | 1908 | alwaysAllowResponse(reply->sline.status())) { |
acbf9428 | 1909 | headers_sz = reply->hdr_sz; |
2efeb0b7 | 1910 | processReplyAccessResult(ACCESS_ALLOWED); |
26ac0430 | 1911 | return; |
230a8cc6 | 1912 | } |
26ac0430 | 1913 | |
b50e327b | 1914 | /** Check for reply to big error */ |
16611143 | 1915 | if (reply->expectedBodyTooLarge(*http->request)) { |
1916 | sendBodyTooLargeError(); | |
62e76326 | 1917 | return; |
1918 | } | |
1919 | ||
7dc5f514 | 1920 | headers_sz = reply->hdr_sz; |
230a8cc6 | 1921 | |
b50e327b | 1922 | /** check for absent access controls (permit by default) */ |
230a8cc6 | 1923 | if (!Config.accessList.reply) { |
2efeb0b7 | 1924 | processReplyAccessResult(ACCESS_ALLOWED); |
26ac0430 | 1925 | return; |
230a8cc6 | 1926 | } |
1927 | ||
b50e327b | 1928 | /** Process http_reply_access lists */ |
127dce76 AR |
1929 | ACLFilledChecklist *replyChecklist = |
1930 | clientAclChecklistCreate(Config.accessList.reply, http); | |
b248c2a3 AJ |
1931 | replyChecklist->reply = reply; |
1932 | HTTPMSGLOCK(replyChecklist->reply); | |
0655fa4d | 1933 | replyChecklist->nonBlockingCheck(ProcessReplyAccessResult, this); |
4993f571 | 1934 | } |
1935 | ||
1936 | void | |
329c128c | 1937 | clientReplyContext::ProcessReplyAccessResult(Acl::Answer rv, void *voidMe) |
4993f571 | 1938 | { |
1939 | clientReplyContext *me = static_cast<clientReplyContext *>(voidMe); | |
0655fa4d | 1940 | me->processReplyAccessResult(rv); |
4993f571 | 1941 | } |
1942 | ||
1943 | void | |
329c128c | 1944 | clientReplyContext::processReplyAccessResult(const Acl::Answer &accessAllowed) |
4993f571 | 1945 | { |
7f06a3d8 AJ |
1946 | debugs(88, 2, "The reply for " << http->request->method |
1947 | << ' ' << http->uri << " is " << accessAllowed << ", because it matched " | |
1948 | << (AclMatchedName ? AclMatchedName : "NO ACL's")); | |
62e76326 | 1949 | |
06bf5384 | 1950 | if (!accessAllowed.allowed()) { |
62e76326 | 1951 | ErrorState *err; |
0185bd6f | 1952 | err_type page_id; |
9ce7856a | 1953 | page_id = aclGetDenyInfoPage(&Config.denyInfoList, AclMatchedName, 1); |
0185bd6f | 1954 | |
d2a6dcba | 1955 | http->logType.update(LOG_TCP_DENIED_REPLY); |
c466369c | 1956 | |
0185bd6f | 1957 | if (page_id == ERR_NONE) |
1958 | page_id = ERR_ACCESS_DENIED; | |
1959 | ||
955394ce | 1960 | err = clientBuildError(page_id, Http::scForbidden, NULL, |
7976fed3 | 1961 | http->getConn(), http->request, http->al); |
0185bd6f | 1962 | |
86a2f789 | 1963 | removeClientStoreReference(&sc, http); |
0185bd6f | 1964 | |
7dc5f514 | 1965 | HTTPMSGUNLOCK(reply); |
0185bd6f | 1966 | |
3c2c1d31 | 1967 | startError(err); |
1968 | ||
62e76326 | 1969 | return; |
1970 | } | |
1971 | ||
0976f8db | 1972 | /* Ok, the reply is allowed, */ |
1973 | http->loggingEntry(http->storeEntry()); | |
1974 | ||
7dc5f514 | 1975 | ssize_t body_size = reqofs - reply->hdr_sz; |
b297bcd0 | 1976 | if (body_size < 0) { |
26ac0430 AJ |
1977 | reqofs = reply->hdr_sz; |
1978 | body_size = 0; | |
b297bcd0 | 1979 | } |
0976f8db | 1980 | |
bf8fe701 | 1981 | debugs(88, 3, "clientReplyContext::sendMoreData: Appending " << |
1982 | (int) body_size << " bytes after " << reply->hdr_sz << | |
1983 | " bytes of headers"); | |
0976f8db | 1984 | |
f41735ea | 1985 | #if USE_SQUID_ESI |
62e76326 | 1986 | |
9b769c67 AJ |
1987 | if (http->flags.accel && reply->sline.status() != Http::scForbidden && |
1988 | !alwaysAllowResponse(reply->sline.status()) && | |
7dc5f514 | 1989 | esiEnableProcessing(reply)) { |
bf8fe701 | 1990 | debugs(88, 2, "Enabling ESI processing for " << http->uri); |
43ae1d95 | 1991 | clientStreamInsertHead(&http->client_stream, esiStreamRead, |
1992 | esiProcessStream, esiStreamDetach, esiStreamStatus, NULL); | |
1993 | } | |
1994 | ||
5ef38a13 | 1995 | #endif |
1996 | ||
c2a7cefd | 1997 | if (http->request->method == Http::METHOD_HEAD) { |
62e76326 | 1998 | /* do not forward body for HEAD replies */ |
1999 | body_size = 0; | |
be4d35dc | 2000 | http->flags.done_copying = true; |
62e76326 | 2001 | flags.complete = 1; |
2002 | } | |
2003 | ||
2004 | assert (!flags.headersSent); | |
2005 | flags.headersSent = true; | |
2006 | ||
8bcf08e0 | 2007 | StoreIOBuffer localTempBuffer; |
62e76326 | 2008 | char *buf = next()->readBuffer.data; |
e85eb4e1 | 2009 | char *body_buf = buf + reply->hdr_sz; |
62e76326 | 2010 | |
49ea0125 | 2011 | //Server side may disable ranges under some circumstances. |
2012 | ||
2013 | if ((!http->request->range)) | |
2014 | next()->readBuffer.offset = 0; | |
2015 | ||
e85eb4e1 AJ |
2016 | body_buf -= next()->readBuffer.offset; |
2017 | ||
62e76326 | 2018 | if (next()->readBuffer.offset != 0) { |
2019 | if (next()->readBuffer.offset > body_size) { | |
2324cda2 | 2020 | /* Can't use any of the body we received. send nothing */ |
8bcf08e0 FC |
2021 | localTempBuffer.length = 0; |
2022 | localTempBuffer.data = NULL; | |
62e76326 | 2023 | } else { |
8bcf08e0 FC |
2024 | localTempBuffer.length = body_size - next()->readBuffer.offset; |
2025 | localTempBuffer.data = body_buf + next()->readBuffer.offset; | |
62e76326 | 2026 | } |
2027 | } else { | |
8bcf08e0 FC |
2028 | localTempBuffer.length = body_size; |
2029 | localTempBuffer.data = body_buf; | |
62e76326 | 2030 | } |
2031 | ||
0655fa4d | 2032 | /* TODO??: move the data in the buffer back by the request header size */ |
62e76326 | 2033 | clientStreamCallback((clientStreamNode *)http->client_stream.head->data, |
8bcf08e0 | 2034 | http, reply, localTempBuffer); |
62e76326 | 2035 | |
2036 | return; | |
4993f571 | 2037 | } |
2038 | ||
528b2c61 | 2039 | void |
2040 | clientReplyContext::sendMoreData (StoreIOBuffer result) | |
2041 | { | |
50c09fc4 | 2042 | if (deleting) |
2043 | return; | |
2044 | ||
86a2f789 | 2045 | StoreEntry *entry = http->storeEntry(); |
50c09fc4 | 2046 | |
cda7024f CT |
2047 | if (ConnStateData * conn = http->getConn()) { |
2048 | if (!conn->isOpen()) { | |
2049 | debugs(33,3, "not sending more data to closing connection " << conn->clientConnection); | |
2050 | return; | |
2051 | } | |
2052 | if (conn->pinning.zeroReply) { | |
2053 | debugs(33,3, "not sending more data after a pinned zero reply " << conn->clientConnection); | |
2054 | return; | |
2055 | } | |
50c09fc4 | 2056 | |
4b5ea8a6 | 2057 | if (reqofs==0 && !http->logType.isTcpHit()) { |
cda7024f CT |
2058 | if (Ip::Qos::TheConfig.isHitTosActive()) { |
2059 | Ip::Qos::doTosLocalMiss(conn->clientConnection, http->request->hier.code); | |
2060 | } | |
2061 | if (Ip::Qos::TheConfig.isHitNfmarkActive()) { | |
2062 | Ip::Qos::doNfmarkLocalMiss(conn->clientConnection, http->request->hier.code); | |
2063 | } | |
2064 | } | |
2065 | ||
4b5ea8a6 | 2066 | debugs(88, 5, conn->clientConnection << |
cda7024f CT |
2067 | " '" << entry->url() << "'" << |
2068 | " out.offset=" << http->out.offset); | |
9af2f95b | 2069 | } |
50c09fc4 | 2070 | |
528b2c61 | 2071 | char *buf = next()->readBuffer.data; |
50c09fc4 | 2072 | |
da33c835 | 2073 | if (buf != result.data) { |
62e76326 | 2074 | /* we've got to copy some data */ |
2075 | assert(result.length <= next()->readBuffer.length); | |
41d00cd3 | 2076 | memcpy(buf, result.data, result.length); |
edce4d98 | 2077 | } |
62e76326 | 2078 | |
ab9c533b HN |
2079 | /* We've got the final data to start pushing... */ |
2080 | flags.storelogiccomplete = 1; | |
2081 | ||
4993f571 | 2082 | reqofs += result.length; |
2083 | ||
2084 | assert(reqofs <= HTTP_REQBUF_SZ || flags.headersSent); | |
62e76326 | 2085 | |
edce4d98 | 2086 | assert(http->request != NULL); |
62e76326 | 2087 | |
edce4d98 | 2088 | /* ESI TODO: remove this assert once everything is stable */ |
2089 | assert(http->client_stream.head->data | |
62e76326 | 2090 | && cbdataReferenceValid(http->client_stream.head->data)); |
528b2c61 | 2091 | |
2092 | makeThisHead(); | |
62e76326 | 2093 | |
bf8fe701 | 2094 | debugs(88, 5, "clientReplyContext::sendMoreData: " << http->uri << ", " << |
47f6e231 | 2095 | reqofs << " bytes (" << result.length << |
bf8fe701 | 2096 | " new bytes)"); |
528b2c61 | 2097 | |
edce4d98 | 2098 | /* update size of the request */ |
4993f571 | 2099 | reqsize = reqofs; |
62e76326 | 2100 | |
4993f571 | 2101 | if (errorInStream(result, reqofs)) { |
62e76326 | 2102 | sendStreamError(result); |
2103 | return; | |
edce4d98 | 2104 | } |
528b2c61 | 2105 | |
2106 | if (flags.headersSent) { | |
62e76326 | 2107 | pushStreamData (result, buf); |
2108 | return; | |
edce4d98 | 2109 | } |
62e76326 | 2110 | |
b297bcd0 | 2111 | cloneReply(); |
21b92762 | 2112 | |
c4a9875e VL |
2113 | #if USE_DELAY_POOLS |
2114 | if (sc) | |
2115 | sc->setDelayId(DelayId::DelayClient(http,reply)); | |
2116 | #endif | |
2117 | ||
b297bcd0 HN |
2118 | holdingBuffer = result; |
2119 | processReplyAccess(); | |
2120 | return; | |
edce4d98 | 2121 | } |
2122 | ||
819be284 EB |
2123 | void |
2124 | clientReplyContext::fillChecklist(ACLFilledChecklist &checklist) const | |
2125 | { | |
2126 | clientAclChecklistFill(checklist, http); | |
2127 | } | |
2128 | ||
edce4d98 | 2129 | /* Using this breaks the client layering just a little! |
2130 | */ | |
0655fa4d | 2131 | void |
f206b652 | 2132 | clientReplyContext::createStoreEntry(const HttpRequestMethod& m, RequestFlags reqFlags) |
edce4d98 | 2133 | { |
0655fa4d | 2134 | assert(http != NULL); |
edce4d98 | 2135 | /* |
2136 | * For erroneous requests, we might not have a h->request, | |
2137 | * so make a fake one. | |
2138 | */ | |
62e76326 | 2139 | |
b248c2a3 | 2140 | if (http->request == NULL) { |
5ceaee75 | 2141 | const MasterXaction::Pointer mx = new MasterXaction(XactionInitiator::initClient); |
bec110e4 EB |
2142 | // XXX: These fake URI parameters shadow the real (or error:...) URI. |
2143 | // TODO: Either always set the request earlier and assert here OR use | |
2144 | // http->uri (converted to Anyp::Uri) to create this catch-all request. | |
2145 | const_cast<HttpRequest *&>(http->request) = new HttpRequest(m, AnyP::PROTO_NONE, "http", null_string, mx); | |
b248c2a3 AJ |
2146 | HTTPMSGLOCK(http->request); |
2147 | } | |
62e76326 | 2148 | |
a8a0b1c2 | 2149 | StoreEntry *e = storeCreateEntry(storeId(), http->log_uri, reqFlags, m); |
62e76326 | 2150 | |
2f8abb64 | 2151 | // Make entry collapsible ASAP, to increase collapsing chances for others, |
e4d13993 AR |
2152 | // TODO: every must-revalidate and similar request MUST reach the origin, |
2153 | // but do we have to prohibit others from collapsing on that request? | |
819be284 | 2154 | if (reqFlags.cachable && |
9d4e9cfb | 2155 | !reqFlags.needValidation && |
819be284 EB |
2156 | (m == Http::METHOD_GET || m == Http::METHOD_HEAD) && |
2157 | mayInitiateCollapsing()) { | |
9a9954ba | 2158 | // make the entry available for future requests now |
4310f8b0 | 2159 | (void)Store::Root().allowCollapsing(e, reqFlags, m); |
9a9954ba AR |
2160 | } |
2161 | ||
0655fa4d | 2162 | sc = storeClientListAdd(e, this); |
62e76326 | 2163 | |
9a0a18de | 2164 | #if USE_DELAY_POOLS |
0655fa4d | 2165 | sc->setDelayId(DelayId::DelayClient(http)); |
edce4d98 | 2166 | #endif |
62e76326 | 2167 | |
0655fa4d | 2168 | reqofs = 0; |
62e76326 | 2169 | |
0655fa4d | 2170 | reqsize = 0; |
62e76326 | 2171 | |
edce4d98 | 2172 | /* I don't think this is actually needed! -- adrian */ |
0655fa4d | 2173 | /* http->reqbuf = http->norm_reqbuf; */ |
2174 | // assert(http->reqbuf == http->norm_reqbuf); | |
edce4d98 | 2175 | /* The next line is illegal because we don't know if the client stream |
26ac0430 | 2176 | * buffers have been set up |
edce4d98 | 2177 | */ |
0655fa4d | 2178 | // storeClientCopy(http->sc, e, 0, HTTP_REQBUF_SZ, http->reqbuf, |
2179 | // SendMoreData, this); | |
edce4d98 | 2180 | /* So, we mark the store logic as complete */ |
8bcf08e0 | 2181 | flags.storelogiccomplete = 1; |
62e76326 | 2182 | |
2f8abb64 | 2183 | /* and get the caller to request a read, from wherever they are */ |
62e76326 | 2184 | /* NOTE: after ANY data flows down the pipe, even one step, |
26ac0430 | 2185 | * this function CAN NOT be used to manage errors |
edce4d98 | 2186 | */ |
86a2f789 | 2187 | http->storeEntry(e); |
edce4d98 | 2188 | } |
2189 | ||
2190 | ErrorState * | |
955394ce | 2191 | clientBuildError(err_type page_id, Http::StatusCode status, char const *url, |
7976fed3 | 2192 | const ConnStateData *conn, HttpRequest *request, const AccessLogEntry::Pointer &al) |
edce4d98 | 2193 | { |
7e6eabbc | 2194 | const auto err = new ErrorState(page_id, status, request, al); |
7976fed3 | 2195 | err->src_addr = conn && conn->clientConnection ? conn->clientConnection->remote : Ip::Address::NoAddr(); |
62e76326 | 2196 | |
edce4d98 | 2197 | if (url) |
62e76326 | 2198 | err->url = xstrdup(url); |
2199 | ||
edce4d98 | 2200 | return err; |
2201 | } | |
f53969cc | 2202 |