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dd11e0b7 | 1 | /* |
63be0a78 | 2 | * $Id: client_side.cc,v 1.779 2008/02/26 21:49:34 amosjeffries Exp $ |
dd11e0b7 | 3 | * |
4 | * DEBUG: section 33 Client-side Routines | |
5 | * AUTHOR: Duane Wessels | |
6 | * | |
2b6662ba | 7 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
e25c139f | 8 | * ---------------------------------------------------------- |
dd11e0b7 | 9 | * |
2b6662ba | 10 | * Squid is the result of efforts by numerous individuals from |
11 | * the Internet community; see the CONTRIBUTORS file for full | |
12 | * details. Many organizations have provided support for Squid's | |
13 | * development; see the SPONSORS file for full details. Squid is | |
14 | * Copyrighted (C) 2001 by the Regents of the University of | |
15 | * California; see the COPYRIGHT file for full details. Squid | |
16 | * incorporates software developed and/or copyrighted by other | |
17 | * sources; see the CREDITS file for full details. | |
dd11e0b7 | 18 | * |
19 | * This program is free software; you can redistribute it and/or modify | |
20 | * it under the terms of the GNU General Public License as published by | |
21 | * the Free Software Foundation; either version 2 of the License, or | |
22 | * (at your option) any later version. | |
9e008dda | 23 | * |
dd11e0b7 | 24 | * This program is distributed in the hope that it will be useful, |
25 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
27 | * GNU General Public License for more details. | |
9e008dda | 28 | * |
dd11e0b7 | 29 | * You should have received a copy of the GNU General Public License |
30 | * along with this program; if not, write to the Free Software | |
cbdec147 | 31 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
e25c139f | 32 | * |
dd11e0b7 | 33 | */ |
f88bb09c | 34 | |
63be0a78 | 35 | /** |
36 | \defgroup ClientSide Client-Side Logics | |
37 | * | |
38 | \subsection cserrors Errors and client side | |
edce4d98 | 39 | * |
63be0a78 | 40 | \par Problem the first: |
41 | * the store entry is no longer authoritative on the | |
edce4d98 | 42 | * reply status. EBITTEST (E_ABORT) is no longer a valid test outside |
43 | * of client_side_reply.c. | |
44 | * Problem the second: resources are wasted if we delay in cleaning up. | |
45 | * Problem the third we can't depend on a connection close to clean up. | |
9e008dda | 46 | * |
63be0a78 | 47 | \par Nice thing the first: |
9e008dda | 48 | * Any step in the stream can callback with data |
edce4d98 | 49 | * representing an error. |
50 | * Nice thing the second: once you stop requesting reads from upstream, | |
51 | * upstream can be stopped too. | |
52 | * | |
63be0a78 | 53 | \par Solution #1: |
54 | * Error has a callback mechanism to hand over a membuf | |
9e008dda | 55 | * with the error content. The failing node pushes that back as the |
edce4d98 | 56 | * reply. Can this be generalised to reduce duplicate efforts? |
57 | * A: Possibly. For now, only one location uses this. | |
58 | * How to deal with pre-stream errors? | |
59 | * Tell client_side_reply that we *want* an error page before any | |
60 | * stream calls occur. Then we simply read as normal. | |
63be0a78 | 61 | * |
62 | * | |
63 | \subsection pconn_logic Persistent connection logic: | |
64 | * | |
65 | \par | |
66 | * requests (httpClientRequest structs) get added to the connection | |
67 | * list, with the current one being chr | |
9e008dda | 68 | * |
63be0a78 | 69 | \par |
70 | * The request is *immediately* kicked off, and data flows through | |
71 | * to clientSocketRecipient. | |
9e008dda | 72 | * |
63be0a78 | 73 | \par |
74 | * If the data that arrives at clientSocketRecipient is not for the current | |
75 | * request, clientSocketRecipient simply returns, without requesting more | |
76 | * data, or sending it. | |
77 | * | |
78 | \par | |
9e008dda AJ |
79 | * ClientKeepAliveNextRequest will then detect the presence of data in |
80 | * the next ClientHttpRequest, and will send it, restablishing the | |
63be0a78 | 81 | * data flow. |
edce4d98 | 82 | */ |
83 | ||
f88bb09c | 84 | #include "squid.h" |
a46d2c0e | 85 | #include "client_side.h" |
c8be6d7b | 86 | #include "clientStream.h" |
ae7ff0b8 | 87 | #include "ProtoPort.h" |
f5691f9c | 88 | #include "AuthUserRequest.h" |
e6ccf245 | 89 | #include "Store.h" |
c4b7a5a9 | 90 | #include "comm.h" |
25b6a907 | 91 | #include "HttpHdrContRange.h" |
528b2c61 | 92 | #include "HttpReply.h" |
93 | #include "HttpRequest.h" | |
5a7431b8 | 94 | #include "ident.h" |
85944c1c | 95 | #include "ip/IpIntercept.h" |
528b2c61 | 96 | #include "MemObject.h" |
97 | #include "fde.h" | |
98 | #include "client_side_request.h" | |
4fb35c3c | 99 | #include "ACLChecklist.h" |
ee0989f2 | 100 | #include "ConnectionDetail.h" |
0655fa4d | 101 | #include "client_side_reply.h" |
de31d06f | 102 | #include "ClientRequestContext.h" |
0eb49b6d | 103 | #include "MemBuf.h" |
985c86bc | 104 | #include "SquidTime.h" |
5cafc1d6 | 105 | |
5492ad1d | 106 | #if LINGERING_CLOSE |
107 | #define comm_close comm_lingering_close | |
108 | #endif | |
109 | ||
edce4d98 | 110 | /* our socket-related context */ |
62e76326 | 111 | |
62e76326 | 112 | |
0655fa4d | 113 | CBDATA_CLASS_INIT(ClientSocketContext); |
62e76326 | 114 | |
0655fa4d | 115 | void * |
116 | ClientSocketContext::operator new (size_t byteCount) | |
117 | { | |
118 | /* derived classes with different sizes must implement their own new */ | |
119 | assert (byteCount == sizeof (ClientSocketContext)); | |
120 | CBDATA_INIT_TYPE(ClientSocketContext); | |
121 | return cbdataAlloc(ClientSocketContext); | |
122 | } | |
62e76326 | 123 | |
0655fa4d | 124 | void |
125 | ClientSocketContext::operator delete (void *address) | |
126 | { | |
127 | cbdataFree (address); | |
128 | } | |
7a2f978b | 129 | |
edce4d98 | 130 | /* Local functions */ |
528b2c61 | 131 | /* ClientSocketContext */ |
59a1efb2 | 132 | static ClientSocketContext *ClientSocketContextNew(ClientHttpRequest *); |
edce4d98 | 133 | /* other */ |
2b663917 | 134 | static IOCB clientWriteComplete; |
135 | static IOCB clientWriteBodyComplete; | |
1cf238db | 136 | static bool clientParseRequest(ConnStateData * conn, bool &do_next_read); |
b5c39993 | 137 | static PF clientLifetimeTimeout; |
1cf238db | 138 | static ClientSocketContext *parseHttpRequestAbort(ConnStateData * conn, |
62e76326 | 139 | const char *uri); |
1cf238db | 140 | static ClientSocketContext *parseHttpRequest(ConnStateData *, HttpParser *, HttpRequestMethod *, HttpVersion *); |
3898f57f | 141 | #if USE_IDENT |
05832ae1 | 142 | static IDCB clientIdentDone; |
3898f57f | 143 | #endif |
edce4d98 | 144 | static CSCB clientSocketRecipient; |
145 | static CSD clientSocketDetach; | |
59a1efb2 | 146 | static void clientSetKeepaliveFlag(ClientHttpRequest *); |
190154cf | 147 | static int clientIsContentLengthValid(HttpRequest * r); |
a46d2c0e | 148 | static bool okToAccept(); |
47f6e231 | 149 | static int clientIsRequestBodyValid(int64_t bodyLength); |
150 | static int clientIsRequestBodyTooLargeForPolicy(int64_t bodyLength); | |
50c09fc4 | 151 | |
c8be6d7b | 152 | static void clientUpdateStatHistCounters(log_type logType, int svc_time); |
153 | static void clientUpdateStatCounters(log_type logType); | |
154 | static void clientUpdateHierCounters(HierarchyLogEntry *); | |
528b2c61 | 155 | static bool clientPingHasFinished(ping_data const *aPing); |
190154cf | 156 | static void clientPrepareLogWithRequestDetails(HttpRequest *, AccessLogEntry *); |
e4a67a80 | 157 | #ifndef PURIFY |
1cf238db | 158 | static int connIsUsable(ConnStateData * conn); |
e4a67a80 | 159 | #endif |
2324cda2 | 160 | static int responseFinishedOrFailed(HttpReply * rep, StoreIOBuffer const &receivedData); |
1cf238db | 161 | static void ClientSocketContextPushDeferredIfNeeded(ClientSocketContext::Pointer deferredRequest, ConnStateData * conn); |
c8be6d7b | 162 | static void clientUpdateSocketStats(log_type logType, size_t size); |
163 | ||
84cc2635 | 164 | char *skipLeadingSpace(char *aString); |
3b299123 | 165 | static void connNoteUseOfBuffer(ConnStateData* conn, size_t byteCount); |
1cf238db | 166 | static int connKeepReadingIncompleteRequest(ConnStateData * conn); |
167 | static void connCancelIncompleteRequests(ConnStateData * conn); | |
62e76326 | 168 | |
cc192b50 | 169 | static ConnStateData *connStateCreate(const IPAddress &peer, const IPAddress &me, int fd, http_port_list *port); |
528b2c61 | 170 | |
ae7ff0b8 | 171 | |
528b2c61 | 172 | int |
173 | ClientSocketContext::fd() const | |
174 | { | |
175 | assert (http); | |
94a396a3 | 176 | assert (http->getConn() != NULL); |
98242069 | 177 | return http->getConn()->fd; |
528b2c61 | 178 | } |
c8be6d7b | 179 | |
180 | clientStreamNode * | |
528b2c61 | 181 | ClientSocketContext::getTail() const |
c8be6d7b | 182 | { |
0655fa4d | 183 | if (http->client_stream.tail) |
184 | return (clientStreamNode *)http->client_stream.tail->data; | |
185 | ||
186 | return NULL; | |
c8be6d7b | 187 | } |
188 | ||
189 | clientStreamNode * | |
528b2c61 | 190 | ClientSocketContext::getClientReplyContext() const |
c8be6d7b | 191 | { |
528b2c61 | 192 | return (clientStreamNode *)http->client_stream.tail->prev->data; |
c8be6d7b | 193 | } |
194 | ||
63be0a78 | 195 | /** |
c4b7a5a9 | 196 | * This routine should be called to grow the inbuf and then |
197 | * call comm_read(). | |
198 | */ | |
199 | void | |
a46d2c0e | 200 | ConnStateData::readSomeData() |
c4b7a5a9 | 201 | { |
a46d2c0e | 202 | if (reading()) |
62e76326 | 203 | return; |
204 | ||
a46d2c0e | 205 | reading(true); |
c4b7a5a9 | 206 | |
bf8fe701 | 207 | debugs(33, 4, "clientReadSomeData: FD " << fd << ": reading request..."); |
62e76326 | 208 | |
a46d2c0e | 209 | makeSpaceAvailable(); |
62e76326 | 210 | |
1cf238db | 211 | typedef CommCbMemFunT<ConnStateData, CommIoCbParams> Dialer; |
212 | AsyncCall::Pointer call = asyncCall(33, 5, "ConnStateData::clientReadRequest", | |
213 | Dialer(this, &ConnStateData::clientReadRequest)); | |
214 | comm_read(fd, in.addressToReadInto(), getAvailableBufferLength(), call); | |
c4b7a5a9 | 215 | } |
62e76326 | 216 | |
c4b7a5a9 | 217 | |
c8be6d7b | 218 | void |
1cf238db | 219 | ClientSocketContext::removeFromConnectionList(ConnStateData * conn) |
c8be6d7b | 220 | { |
0655fa4d | 221 | ClientSocketContext::Pointer *tempContextPointer; |
1cf238db | 222 | assert(conn != NULL && cbdataReferenceValid(conn)); |
94a396a3 | 223 | assert(conn->getCurrentContext() != NULL); |
c8be6d7b | 224 | /* Unlink us from the connection request list */ |
0655fa4d | 225 | tempContextPointer = & conn->currentobject; |
62e76326 | 226 | |
0655fa4d | 227 | while (tempContextPointer->getRaw()) { |
62e76326 | 228 | if (*tempContextPointer == this) |
229 | break; | |
230 | ||
231 | tempContextPointer = &(*tempContextPointer)->next; | |
c8be6d7b | 232 | } |
62e76326 | 233 | |
0655fa4d | 234 | assert(tempContextPointer->getRaw() != NULL); |
528b2c61 | 235 | *tempContextPointer = next; |
236 | next = NULL; | |
c8be6d7b | 237 | } |
ea6f43cd | 238 | |
0655fa4d | 239 | ClientSocketContext::~ClientSocketContext() |
f88bb09c | 240 | { |
0655fa4d | 241 | clientStreamNode *node = getTail(); |
242 | ||
243 | if (node) { | |
244 | ClientSocketContext *streamContext = dynamic_cast<ClientSocketContext *> (node->data.getRaw()); | |
245 | ||
246 | if (streamContext) { | |
247 | /* We are *always* the tail - prevent recursive free */ | |
248 | assert(this == streamContext); | |
249 | node->data = NULL; | |
250 | } | |
251 | } | |
252 | ||
253 | if (connRegistered_) | |
254 | deRegisterWithConn(); | |
255 | ||
256 | httpRequestFree(http); | |
257 | ||
edce4d98 | 258 | /* clean up connection links to us */ |
c53577d9 | 259 | assert(this != next.getRaw()); |
0655fa4d | 260 | } |
62e76326 | 261 | |
0655fa4d | 262 | void |
263 | ClientSocketContext::registerWithConn() | |
264 | { | |
265 | assert (!connRegistered_); | |
266 | assert (http); | |
94a396a3 | 267 | assert (http->getConn() != NULL); |
0655fa4d | 268 | connRegistered_ = true; |
98242069 | 269 | http->getConn()->addContextToQueue(this); |
0655fa4d | 270 | } |
271 | ||
272 | void | |
273 | ClientSocketContext::deRegisterWithConn() | |
274 | { | |
275 | assert (connRegistered_); | |
98242069 | 276 | removeFromConnectionList(http->getConn()); |
0655fa4d | 277 | connRegistered_ = false; |
278 | } | |
279 | ||
280 | void | |
281 | ClientSocketContext::connIsFinished() | |
282 | { | |
283 | assert (http); | |
94a396a3 | 284 | assert (http->getConn() != NULL); |
0655fa4d | 285 | deRegisterWithConn(); |
286 | /* we can't handle any more stream data - detach */ | |
287 | clientStreamDetach(getTail(), http); | |
288 | } | |
289 | ||
fedd1531 | 290 | ClientSocketContext::ClientSocketContext() : http(NULL), reply(NULL), next(NULL), |
0655fa4d | 291 | writtenToSocket(0), |
292 | mayUseConnection_ (false), | |
293 | connRegistered_ (false) | |
294 | { | |
295 | memset (reqbuf, '\0', sizeof (reqbuf)); | |
296 | flags.deferred = 0; | |
297 | flags.parsed_ok = 0; | |
298 | deferredparams.node = NULL; | |
299 | deferredparams.rep = NULL; | |
f88bb09c | 300 | } |
301 | ||
528b2c61 | 302 | ClientSocketContext * |
59a1efb2 | 303 | ClientSocketContextNew(ClientHttpRequest * http) |
f88bb09c | 304 | { |
528b2c61 | 305 | ClientSocketContext *newContext; |
edce4d98 | 306 | assert(http != NULL); |
0655fa4d | 307 | newContext = new ClientSocketContext; |
c8be6d7b | 308 | newContext->http = http; |
309 | return newContext; | |
4d55827a | 310 | } |
311 | ||
edce4d98 | 312 | #if USE_IDENT |
4d55827a | 313 | static void |
edce4d98 | 314 | clientIdentDone(const char *ident, void *data) |
4d55827a | 315 | { |
cc59d02a | 316 | ConnStateData *conn = (ConnStateData *)data; |
edce4d98 | 317 | xstrncpy(conn->rfc931, ident ? ident : dash_str, USER_IDENT_SZ); |
e81957b7 | 318 | } |
319 | ||
447e176b | 320 | #endif |
7a2f978b | 321 | |
c8be6d7b | 322 | void |
323 | clientUpdateStatCounters(log_type logType) | |
a7c05555 | 324 | { |
83704487 | 325 | statCounter.client_http.requests++; |
62e76326 | 326 | |
c8be6d7b | 327 | if (logTypeIsATcpHit(logType)) |
62e76326 | 328 | statCounter.client_http.hits++; |
329 | ||
c8be6d7b | 330 | if (logType == LOG_TCP_HIT) |
62e76326 | 331 | statCounter.client_http.disk_hits++; |
c8be6d7b | 332 | else if (logType == LOG_TCP_MEM_HIT) |
62e76326 | 333 | statCounter.client_http.mem_hits++; |
c8be6d7b | 334 | } |
335 | ||
336 | void | |
337 | clientUpdateStatHistCounters(log_type logType, int svc_time) | |
338 | { | |
83704487 | 339 | statHistCount(&statCounter.client_http.all_svc_time, svc_time); |
63be0a78 | 340 | /** |
ee1679df | 341 | * The idea here is not to be complete, but to get service times |
342 | * for only well-defined types. For example, we don't include | |
1d7ab0f4 | 343 | * LOG_TCP_REFRESH_FAIL because its not really a cache hit |
ee1679df | 344 | * (we *tried* to validate it, but failed). |
345 | */ | |
62e76326 | 346 | |
c8be6d7b | 347 | switch (logType) { |
62e76326 | 348 | |
1d7ab0f4 | 349 | case LOG_TCP_REFRESH_UNMODIFIED: |
62e76326 | 350 | statHistCount(&statCounter.client_http.nh_svc_time, svc_time); |
351 | break; | |
352 | ||
ee1679df | 353 | case LOG_TCP_IMS_HIT: |
62e76326 | 354 | statHistCount(&statCounter.client_http.nm_svc_time, svc_time); |
355 | break; | |
356 | ||
ee1679df | 357 | case LOG_TCP_HIT: |
62e76326 | 358 | |
ee1679df | 359 | case LOG_TCP_MEM_HIT: |
62e76326 | 360 | |
b540e168 | 361 | case LOG_TCP_OFFLINE_HIT: |
62e76326 | 362 | statHistCount(&statCounter.client_http.hit_svc_time, svc_time); |
363 | break; | |
364 | ||
ee1679df | 365 | case LOG_TCP_MISS: |
62e76326 | 366 | |
ee1679df | 367 | case LOG_TCP_CLIENT_REFRESH_MISS: |
62e76326 | 368 | statHistCount(&statCounter.client_http.miss_svc_time, svc_time); |
369 | break; | |
370 | ||
ee1679df | 371 | default: |
62e76326 | 372 | /* make compiler warnings go away */ |
373 | break; | |
ee1679df | 374 | } |
c8be6d7b | 375 | } |
376 | ||
528b2c61 | 377 | bool |
c8be6d7b | 378 | clientPingHasFinished(ping_data const *aPing) |
379 | { | |
380 | if (0 != aPing->stop.tv_sec && 0 != aPing->start.tv_sec) | |
62e76326 | 381 | return true; |
382 | ||
528b2c61 | 383 | return false; |
c8be6d7b | 384 | } |
385 | ||
386 | void | |
387 | clientUpdateHierCounters(HierarchyLogEntry * someEntry) | |
388 | { | |
389 | ping_data *i; | |
62e76326 | 390 | |
c8547a11 | 391 | switch (someEntry->code) { |
392 | #if USE_CACHE_DIGESTS | |
62e76326 | 393 | |
c8547a11 | 394 | case CD_PARENT_HIT: |
62e76326 | 395 | |
a196e1e4 | 396 | case CD_SIBLING_HIT: |
62e76326 | 397 | statCounter.cd.times_used++; |
398 | break; | |
c8547a11 | 399 | #endif |
62e76326 | 400 | |
c8547a11 | 401 | case SIBLING_HIT: |
62e76326 | 402 | |
c8547a11 | 403 | case PARENT_HIT: |
62e76326 | 404 | |
c8547a11 | 405 | case FIRST_PARENT_MISS: |
62e76326 | 406 | |
c8547a11 | 407 | case CLOSEST_PARENT_MISS: |
62e76326 | 408 | statCounter.icp.times_used++; |
409 | i = &someEntry->ping; | |
410 | ||
411 | if (clientPingHasFinished(i)) | |
412 | statHistCount(&statCounter.icp.query_svc_time, | |
413 | tvSubUsec(i->start, i->stop)); | |
414 | ||
415 | if (i->timeout) | |
416 | statCounter.icp.query_timeouts++; | |
417 | ||
418 | break; | |
419 | ||
c8547a11 | 420 | case CLOSEST_PARENT: |
62e76326 | 421 | |
c8547a11 | 422 | case CLOSEST_DIRECT: |
62e76326 | 423 | statCounter.netdb.times_used++; |
424 | ||
425 | break; | |
426 | ||
69c95dd3 | 427 | default: |
62e76326 | 428 | break; |
17b6e784 | 429 | } |
a7c05555 | 430 | } |
431 | ||
528b2c61 | 432 | void |
433 | ClientHttpRequest::updateCounters() | |
c8be6d7b | 434 | { |
528b2c61 | 435 | clientUpdateStatCounters(logType); |
62e76326 | 436 | |
528b2c61 | 437 | if (request->errType != ERR_NONE) |
62e76326 | 438 | statCounter.client_http.errors++; |
439 | ||
528b2c61 | 440 | clientUpdateStatHistCounters(logType, |
1cf238db | 441 | tvSubMsec(start_time, current_time)); |
62e76326 | 442 | |
528b2c61 | 443 | clientUpdateHierCounters(&request->hier); |
c8be6d7b | 444 | } |
445 | ||
edce4d98 | 446 | void |
190154cf | 447 | clientPrepareLogWithRequestDetails(HttpRequest * request, AccessLogEntry * aLogEntry) |
7a2f978b | 448 | { |
c8be6d7b | 449 | assert(request); |
450 | assert(aLogEntry); | |
7684c4b1 | 451 | |
452 | if (Config.onoff.log_mime_hdrs) { | |
453 | Packer p; | |
454 | MemBuf mb; | |
2fe7eff9 | 455 | mb.init(); |
7684c4b1 | 456 | packerToMemInit(&p, &mb); |
a9925b40 | 457 | request->header.packInto(&p); |
7684c4b1 | 458 | aLogEntry->headers.request = xstrdup(mb.buf); |
459 | packerClean(&p); | |
2fe7eff9 | 460 | mb.clean(); |
7684c4b1 | 461 | } |
462 | ||
c8be6d7b | 463 | aLogEntry->http.method = request->method; |
464 | aLogEntry->http.version = request->http_ver; | |
c8be6d7b | 465 | aLogEntry->hier = request->hier; |
1a86db31 | 466 | aLogEntry->cache.requestSize += request->content_length; |
30abd221 | 467 | aLogEntry->cache.extuser = request->extacl_user.buf(); |
abb929f0 | 468 | |
c8be6d7b | 469 | if (request->auth_user_request) { |
f5691f9c | 470 | |
471 | if (request->auth_user_request->username()) | |
f5292c64 | 472 | aLogEntry->cache.authuser = |
f5691f9c | 473 | xstrdup(request->auth_user_request->username()); |
f5292c64 | 474 | |
9e008dda | 475 | AUTHUSERREQUESTUNLOCK(request->auth_user_request, "request via clientPrepareLogWithRequestDetails"); |
7a2f978b | 476 | } |
c8be6d7b | 477 | } |
478 | ||
479 | void | |
528b2c61 | 480 | ClientHttpRequest::logRequest() |
481 | { | |
482 | if (out.size || logType) { | |
62e76326 | 483 | al.icp.opcode = ICP_INVALID; |
484 | al.url = log_uri; | |
bf8fe701 | 485 | debugs(33, 9, "clientLogRequest: al.url='" << al.url << "'"); |
62e76326 | 486 | |
90a8964c | 487 | if (al.reply) { |
488 | al.http.code = al.reply->sline.status; | |
30abd221 | 489 | al.http.content_type = al.reply->content_type.buf(); |
90a8964c | 490 | } else if (loggingEntry() && loggingEntry()->mem_obj) { |
0976f8db | 491 | al.http.code = loggingEntry()->mem_obj->getReply()->sline.status; |
30abd221 | 492 | al.http.content_type = loggingEntry()->mem_obj->getReply()->content_type.buf(); |
62e76326 | 493 | } |
494 | ||
bf8fe701 | 495 | debugs(33, 9, "clientLogRequest: http.code='" << al.http.code << "'"); |
5f8252d2 | 496 | |
90a8964c | 497 | if (loggingEntry() && loggingEntry()->mem_obj) |
b37bde1e | 498 | al.cache.objectSize = loggingEntry()->contentLen(); |
90a8964c | 499 | |
cc192b50 | 500 | al.cache.caddr.SetNoAddr(); |
501 | ||
9e008dda | 502 | if (getConn() != NULL) al.cache.caddr = getConn()->log_addr; |
90a8964c | 503 | |
1a86db31 AJ |
504 | al.cache.requestSize = req_sz; |
505 | ||
506 | al.cache.replySize = out.size; | |
90a8964c | 507 | |
0976f8db | 508 | al.cache.highOffset = out.offset; |
90a8964c | 509 | |
62e76326 | 510 | al.cache.code = logType; |
90a8964c | 511 | |
1cf238db | 512 | al.cache.msec = tvSubMsec(start_time, current_time); |
62e76326 | 513 | |
514 | if (request) | |
515 | clientPrepareLogWithRequestDetails(request, &al); | |
516 | ||
94a396a3 | 517 | if (getConn() != NULL && getConn()->rfc931[0]) |
98242069 | 518 | al.cache.rfc931 = getConn()->rfc931; |
62e76326 | 519 | |
2ea1afad | 520 | #if USE_SSL && 0 |
62e76326 | 521 | |
9e008dda AJ |
522 | /* This is broken. Fails if the connection has been closed. Needs |
523 | * to snarf the ssl details some place earlier.. | |
524 | */ | |
94a396a3 | 525 | if (getConn() != NULL) |
98242069 | 526 | al.cache.ssluser = sslGetUserEmail(fd_table[getConn()->fd].ssl); |
62e76326 | 527 | |
a7ad6e4e | 528 | #endif |
62e76326 | 529 | |
7684c4b1 | 530 | ACLChecklist *checklist = clientAclChecklistCreate(Config.accessList.log, this); |
62e76326 | 531 | |
fe74b6a6 | 532 | if (al.reply) |
533 | checklist->reply = HTTPMSGLOCK(al.reply); | |
62e76326 | 534 | |
b448c119 | 535 | if (!Config.accessList.log || checklist->fastCheck()) { |
6dd9f4bd | 536 | al.request = HTTPMSGLOCK(request); |
7684c4b1 | 537 | accessLogLog(&al, checklist); |
538 | updateCounters(); | |
62e76326 | 539 | |
94a396a3 | 540 | if (getConn() != NULL) |
cc192b50 | 541 | clientdbUpdate(getConn()->peer, logType, PROTO_HTTP, out.size); |
7684c4b1 | 542 | } |
543 | ||
544 | delete checklist; | |
545 | ||
546 | accessLogFreeMemory(&al); | |
7a2f978b | 547 | } |
c8be6d7b | 548 | } |
549 | ||
550 | void | |
528b2c61 | 551 | ClientHttpRequest::freeResources() |
c8be6d7b | 552 | { |
528b2c61 | 553 | safe_free(uri); |
554 | safe_free(log_uri); | |
555 | safe_free(redirect.location); | |
30abd221 | 556 | range_iter.boundary.clean(); |
6dd9f4bd | 557 | HTTPMSGUNLOCK(request); |
62e76326 | 558 | |
528b2c61 | 559 | if (client_stream.tail) |
62e76326 | 560 | clientStreamAbort((clientStreamNode *)client_stream.tail->data, this); |
c8be6d7b | 561 | } |
562 | ||
563 | void | |
564 | httpRequestFree(void *data) | |
565 | { | |
59a1efb2 | 566 | ClientHttpRequest *http = (ClientHttpRequest *)data; |
c8be6d7b | 567 | assert(http != NULL); |
528b2c61 | 568 | delete http; |
7a2f978b | 569 | } |
570 | ||
a46d2c0e | 571 | bool |
572 | ConnStateData::areAllContextsForThisConnection() const | |
c8be6d7b | 573 | { |
a46d2c0e | 574 | assert(this != NULL); |
0655fa4d | 575 | ClientSocketContext::Pointer context = getCurrentContext(); |
62e76326 | 576 | |
0655fa4d | 577 | while (context.getRaw()) { |
98242069 | 578 | if (context->http->getConn() != this) |
a46d2c0e | 579 | return false; |
62e76326 | 580 | |
581 | context = context->next; | |
c8be6d7b | 582 | } |
62e76326 | 583 | |
a46d2c0e | 584 | return true; |
c8be6d7b | 585 | } |
586 | ||
587 | void | |
a46d2c0e | 588 | ConnStateData::freeAllContexts() |
c8be6d7b | 589 | { |
0655fa4d | 590 | ClientSocketContext::Pointer context; |
62e76326 | 591 | |
c53577d9 | 592 | while ((context = getCurrentContext()).getRaw() != NULL) { |
0655fa4d | 593 | assert(getCurrentContext() != |
594 | getCurrentContext()->next); | |
595 | context->connIsFinished(); | |
596 | assert (context != currentobject); | |
c8be6d7b | 597 | } |
598 | } | |
599 | ||
7a2f978b | 600 | /* This is a handler normally called by comm_close() */ |
1cf238db | 601 | void ConnStateData::connStateClosed(const CommCloseCbParams &io) |
7a2f978b | 602 | { |
1cf238db | 603 | assert (fd == io.fd); |
6e1d409c | 604 | deleteThis("ConnStateData::connStateClosed"); |
a46d2c0e | 605 | } |
62e76326 | 606 | |
6e1d409c | 607 | // cleans up before destructor is called |
a2ac85d9 | 608 | void |
6e1d409c | 609 | ConnStateData::swanSong() |
a46d2c0e | 610 | { |
6e1d409c | 611 | debugs(33, 2, "ConnStateData::swanSong: FD " << fd); |
2e216b1d | 612 | fd = -1; |
613 | flags.readMoreRequests = false; | |
cc192b50 | 614 | clientdbEstablished(peer, -1); /* decrement */ |
a46d2c0e | 615 | assert(areAllContextsForThisConnection()); |
616 | freeAllContexts(); | |
f5691f9c | 617 | |
6bf4f823 | 618 | if (auth_user_request != NULL) { |
6e1d409c | 619 | debugs(33, 4, "ConnStateData::swanSong: freeing auth_user_request '" << auth_user_request << "' (this is '" << this << "')"); |
f5691f9c | 620 | auth_user_request->onConnectionClose(this); |
6bf4f823 | 621 | } |
6e1d409c | 622 | |
d67acb4e | 623 | if (pinning.fd >= 0) |
9e008dda | 624 | comm_close(pinning.fd); |
d67acb4e | 625 | |
6e1d409c AR |
626 | BodyProducer::swanSong(); |
627 | flags.swanSang = true; | |
a2ac85d9 | 628 | } |
629 | ||
630 | bool | |
631 | ConnStateData::isOpen() const | |
632 | { | |
10b06767 | 633 | return cbdataReferenceValid(this) && // XXX: checking "this" in a method |
9e008dda AJ |
634 | fd >= 0 && |
635 | !fd_table[fd].closing(); | |
a2ac85d9 | 636 | } |
637 | ||
638 | ConnStateData::~ConnStateData() | |
639 | { | |
640 | assert(this != NULL); | |
bf8fe701 | 641 | debugs(33, 3, "ConnStateData::~ConnStateData: FD " << fd); |
a2ac85d9 | 642 | |
643 | if (isOpen()) | |
6e1d409c AR |
644 | debugs(33, 1, "BUG: ConnStateData did not close FD " << fd); |
645 | ||
646 | if (!flags.swanSang) | |
647 | debugs(33, 1, "BUG: ConnStateData was not destroyed properly; FD " << fd); | |
62e76326 | 648 | |
4f0ef8e8 | 649 | AUTHUSERREQUESTUNLOCK(auth_user_request, "~conn"); |
62e76326 | 650 | |
e0db3481 | 651 | cbdataReferenceDone(port); |
83fdd41a | 652 | |
279152e7 AJ |
653 | if (bodyPipe != NULL) |
654 | stopProducingFor(bodyPipe, false); | |
7a2f978b | 655 | } |
656 | ||
63be0a78 | 657 | /** |
c68e9c6b | 658 | * clientSetKeepaliveFlag() sets request->flags.proxy_keepalive. |
659 | * This is the client-side persistent connection flag. We need | |
660 | * to set this relatively early in the request processing | |
661 | * to handle hacks for broken servers and clients. | |
662 | */ | |
663 | static void | |
59a1efb2 | 664 | clientSetKeepaliveFlag(ClientHttpRequest * http) |
c68e9c6b | 665 | { |
190154cf | 666 | HttpRequest *request = http->request; |
c68e9c6b | 667 | const HttpHeader *req_hdr = &request->header; |
f6329bc3 | 668 | |
bf8fe701 | 669 | debugs(33, 3, "clientSetKeepaliveFlag: http_ver = " << |
670 | request->http_ver.major << "." << request->http_ver.minor); | |
671 | debugs(33, 3, "clientSetKeepaliveFlag: method = " << | |
60745f24 | 672 | RequestMethodStr(request->method)); |
62e76326 | 673 | |
f5e45ad8 | 674 | HttpVersion http_ver(1,0); |
675 | /* we are HTTP/1.0, no matter what the client requests... */ | |
62e76326 | 676 | |
f5e45ad8 | 677 | if (httpMsgIsPersistent(http_ver, req_hdr)) |
678 | request->flags.proxy_keepalive = 1; | |
c68e9c6b | 679 | } |
680 | ||
31be8b80 | 681 | static int |
190154cf | 682 | clientIsContentLengthValid(HttpRequest * r) |
31be8b80 | 683 | { |
914b89a2 | 684 | switch (r->method.id()) { |
62e76326 | 685 | |
ffc128c4 | 686 | case METHOD_PUT: |
62e76326 | 687 | |
ffc128c4 | 688 | case METHOD_POST: |
62e76326 | 689 | /* PUT/POST requires a request entity */ |
690 | return (r->content_length >= 0); | |
691 | ||
ffc128c4 | 692 | case METHOD_GET: |
62e76326 | 693 | |
ffc128c4 | 694 | case METHOD_HEAD: |
62e76326 | 695 | /* We do not want to see a request entity on GET/HEAD requests */ |
696 | return (r->content_length <= 0 || Config.onoff.request_entities); | |
697 | ||
ffc128c4 | 698 | default: |
62e76326 | 699 | /* For other types of requests we don't care */ |
700 | return 1; | |
ffc128c4 | 701 | } |
62e76326 | 702 | |
ffc128c4 | 703 | /* NOT REACHED */ |
31be8b80 | 704 | } |
705 | ||
cf50a0af | 706 | int |
47f6e231 | 707 | clientIsRequestBodyValid(int64_t bodyLength) |
7a2f978b | 708 | { |
c8be6d7b | 709 | if (bodyLength >= 0) |
62e76326 | 710 | return 1; |
711 | ||
7a2f978b | 712 | return 0; |
713 | } | |
714 | ||
c8be6d7b | 715 | int |
47f6e231 | 716 | clientIsRequestBodyTooLargeForPolicy(int64_t bodyLength) |
efd900cb | 717 | { |
c8be6d7b | 718 | if (Config.maxRequestBodySize && |
62e76326 | 719 | bodyLength > Config.maxRequestBodySize) |
720 | return 1; /* too large */ | |
721 | ||
efd900cb | 722 | return 0; |
723 | } | |
724 | ||
e4a67a80 | 725 | #ifndef PURIFY |
c8be6d7b | 726 | int |
1cf238db | 727 | connIsUsable(ConnStateData * conn) |
c8be6d7b | 728 | { |
1cf238db | 729 | if (conn == NULL || !cbdataReferenceValid(conn) || conn->fd == -1) |
62e76326 | 730 | return 0; |
731 | ||
c8be6d7b | 732 | return 1; |
733 | } | |
734 | ||
e4a67a80 | 735 | #endif |
736 | ||
0655fa4d | 737 | ClientSocketContext::Pointer |
738 | ConnStateData::getCurrentContext() const | |
c8be6d7b | 739 | { |
0655fa4d | 740 | assert(this); |
741 | return currentobject; | |
c8be6d7b | 742 | } |
743 | ||
744 | void | |
2324cda2 | 745 | ClientSocketContext::deferRecipientForLater(clientStreamNode * node, HttpReply * rep, StoreIOBuffer receivedData) |
528b2c61 | 746 | { |
bf8fe701 | 747 | debugs(33, 2, "clientSocketRecipient: Deferring request " << http->uri); |
528b2c61 | 748 | assert(flags.deferred == 0); |
749 | flags.deferred = 1; | |
750 | deferredparams.node = node; | |
751 | deferredparams.rep = rep; | |
2324cda2 | 752 | deferredparams.queuedBuffer = receivedData; |
c8be6d7b | 753 | return; |
754 | } | |
755 | ||
756 | int | |
2324cda2 | 757 | responseFinishedOrFailed(HttpReply * rep, StoreIOBuffer const & receivedData) |
c8be6d7b | 758 | { |
2324cda2 | 759 | if (rep == NULL && receivedData.data == NULL && receivedData.length == 0) |
62e76326 | 760 | return 1; |
761 | ||
c8be6d7b | 762 | return 0; |
763 | } | |
764 | ||
0655fa4d | 765 | bool |
766 | ClientSocketContext::startOfOutput() const | |
c8be6d7b | 767 | { |
0655fa4d | 768 | return http->out.size == 0; |
c8be6d7b | 769 | } |
770 | ||
528b2c61 | 771 | size_t |
47f6e231 | 772 | ClientSocketContext::lengthToSend(Range<int64_t> const &available) |
528b2c61 | 773 | { |
47f6e231 | 774 | /*the size of available range can always fit in a size_t type*/ |
775 | size_t maximum = (size_t)available.size(); | |
2512d159 | 776 | |
528b2c61 | 777 | if (!http->request->range) |
62e76326 | 778 | return maximum; |
779 | ||
528b2c61 | 780 | assert (canPackMoreRanges()); |
62e76326 | 781 | |
528b2c61 | 782 | if (http->range_iter.debt() == -1) |
62e76326 | 783 | return maximum; |
784 | ||
528b2c61 | 785 | assert (http->range_iter.debt() > 0); |
62e76326 | 786 | |
2512d159 | 787 | /* TODO this + the last line could be a range intersection calculation */ |
47f6e231 | 788 | if (available.start < http->range_iter.currentSpec()->offset) |
2512d159 | 789 | return 0; |
790 | ||
47f6e231 | 791 | return XMIN(http->range_iter.debt(), (int64_t)maximum); |
528b2c61 | 792 | } |
793 | ||
c8be6d7b | 794 | void |
528b2c61 | 795 | ClientSocketContext::noteSentBodyBytes(size_t bytes) |
796 | { | |
797 | http->out.offset += bytes; | |
62e76326 | 798 | |
528b2c61 | 799 | if (!http->request->range) |
62e76326 | 800 | return; |
801 | ||
528b2c61 | 802 | if (http->range_iter.debt() != -1) { |
62e76326 | 803 | http->range_iter.debt(http->range_iter.debt() - bytes); |
804 | assert (http->range_iter.debt() >= 0); | |
528b2c61 | 805 | } |
62e76326 | 806 | |
dd272b8e | 807 | /* debt() always stops at -1, below that is a bug */ |
808 | assert (http->range_iter.debt() >= -1); | |
528b2c61 | 809 | } |
62e76326 | 810 | |
528b2c61 | 811 | bool |
812 | ClientHttpRequest::multipartRangeRequest() const | |
813 | { | |
814 | return request->multipartRangeRequest(); | |
815 | } | |
816 | ||
817 | bool | |
818 | ClientSocketContext::multipartRangeRequest() const | |
819 | { | |
820 | return http->multipartRangeRequest(); | |
821 | } | |
822 | ||
823 | void | |
824 | ClientSocketContext::sendBody(HttpReply * rep, StoreIOBuffer bodyData) | |
c8be6d7b | 825 | { |
826 | assert(rep == NULL); | |
528b2c61 | 827 | |
828 | if (!multipartRangeRequest()) { | |
2512d159 | 829 | size_t length = lengthToSend(bodyData.range()); |
62e76326 | 830 | noteSentBodyBytes (length); |
9e008dda AJ |
831 | AsyncCall::Pointer call = commCbCall(33, 5, "clientWriteBodyComplete", |
832 | CommIoCbPtrFun(clientWriteBodyComplete, this)); | |
833 | comm_write(fd(), bodyData.data, length, call ); | |
62e76326 | 834 | return; |
528b2c61 | 835 | } |
836 | ||
837 | MemBuf mb; | |
2fe7eff9 | 838 | mb.init(); |
2512d159 | 839 | packRange(bodyData, &mb); |
840 | ||
9e008dda | 841 | if (mb.contentSize()) { |
2512d159 | 842 | /* write */ |
9e008dda AJ |
843 | AsyncCall::Pointer call = commCbCall(33, 5, "clientWriteComplete", |
844 | CommIoCbPtrFun(clientWriteComplete, this)); | |
845 | comm_write_mbuf(fd(), &mb, call); | |
1cf238db | 846 | } else |
2512d159 | 847 | writeComplete(fd(), NULL, 0, COMM_OK); |
c8be6d7b | 848 | } |
849 | ||
63be0a78 | 850 | /** put terminating boundary for multiparts */ |
528b2c61 | 851 | static void |
30abd221 | 852 | clientPackTermBound(String boundary, MemBuf * mb) |
528b2c61 | 853 | { |
30abd221 | 854 | mb->Printf("\r\n--%s--\r\n", boundary.buf()); |
4a7a3d56 | 855 | debugs(33, 6, "clientPackTermBound: buf offset: " << mb->size); |
528b2c61 | 856 | } |
857 | ||
63be0a78 | 858 | /** appends a "part" HTTP header (as in a multi-part/range reply) to the buffer */ |
528b2c61 | 859 | static void |
30abd221 | 860 | clientPackRangeHdr(const HttpReply * rep, const HttpHdrRangeSpec * spec, String boundary, MemBuf * mb) |
528b2c61 | 861 | { |
75faaa7a | 862 | HttpHeader hdr(hoReply); |
528b2c61 | 863 | Packer p; |
864 | assert(rep); | |
865 | assert(spec); | |
866 | ||
867 | /* put boundary */ | |
30abd221 | 868 | debugs(33, 5, "clientPackRangeHdr: appending boundary: " << |
869 | boundary.buf()); | |
528b2c61 | 870 | /* rfc2046 requires to _prepend_ boundary with <crlf>! */ |
30abd221 | 871 | mb->Printf("\r\n--%s\r\n", boundary.buf()); |
528b2c61 | 872 | |
873 | /* stuff the header with required entries and pack it */ | |
62e76326 | 874 | |
a9925b40 | 875 | if (rep->header.has(HDR_CONTENT_TYPE)) |
876 | hdr.putStr(HDR_CONTENT_TYPE, rep->header.getStr(HDR_CONTENT_TYPE)); | |
62e76326 | 877 | |
528b2c61 | 878 | httpHeaderAddContRange(&hdr, *spec, rep->content_length); |
62e76326 | 879 | |
528b2c61 | 880 | packerToMemInit(&p, mb); |
62e76326 | 881 | |
a9925b40 | 882 | hdr.packInto(&p); |
62e76326 | 883 | |
528b2c61 | 884 | packerClean(&p); |
62e76326 | 885 | |
519e0948 | 886 | hdr.clean(); |
528b2c61 | 887 | |
888 | /* append <crlf> (we packed a header, not a reply) */ | |
2fe7eff9 | 889 | mb->Printf("\r\n"); |
528b2c61 | 890 | } |
891 | ||
63be0a78 | 892 | /** |
528b2c61 | 893 | * extracts a "range" from *buf and appends them to mb, updating |
894 | * all offsets and such. | |
895 | */ | |
c8be6d7b | 896 | void |
2512d159 | 897 | ClientSocketContext::packRange(StoreIOBuffer const &source, MemBuf * mb) |
528b2c61 | 898 | { |
899 | HttpHdrRangeIter * i = &http->range_iter; | |
47f6e231 | 900 | Range<int64_t> available (source.range()); |
b65351fa | 901 | char const *buf = source.data; |
62e76326 | 902 | |
2512d159 | 903 | while (i->currentSpec() && available.size()) { |
62e76326 | 904 | const size_t copy_sz = lengthToSend(available); |
62e76326 | 905 | |
2512d159 | 906 | if (copy_sz) { |
907 | /* | |
908 | * intersection of "have" and "need" ranges must not be empty | |
909 | */ | |
910 | assert(http->out.offset < i->currentSpec()->offset + i->currentSpec()->length); | |
ed013b6c | 911 | assert(http->out.offset + available.size() > i->currentSpec()->offset); |
2512d159 | 912 | |
913 | /* | |
914 | * put boundary and headers at the beginning of a range in a | |
915 | * multi-range | |
916 | */ | |
917 | ||
918 | if (http->multipartRangeRequest() && i->debt() == i->currentSpec()->length) { | |
919 | assert(http->memObject()); | |
920 | clientPackRangeHdr( | |
921 | http->memObject()->getReply(), /* original reply */ | |
922 | i->currentSpec(), /* current range */ | |
923 | i->boundary, /* boundary, the same for all */ | |
924 | mb); | |
925 | } | |
62e76326 | 926 | |
2512d159 | 927 | /* |
928 | * append content | |
929 | */ | |
4a7a3d56 | 930 | debugs(33, 3, "clientPackRange: appending " << copy_sz << " bytes"); |
62e76326 | 931 | |
2512d159 | 932 | noteSentBodyBytes (copy_sz); |
62e76326 | 933 | |
2fe7eff9 | 934 | mb->append(buf, copy_sz); |
62e76326 | 935 | |
2512d159 | 936 | /* |
937 | * update offsets | |
938 | */ | |
939 | available.start += copy_sz; | |
62e76326 | 940 | |
2512d159 | 941 | buf += copy_sz; |
62e76326 | 942 | |
2512d159 | 943 | } |
62e76326 | 944 | |
945 | /* | |
946 | * paranoid check | |
947 | */ | |
871899ca | 948 | assert((available.size() >= 0 && i->debt() >= 0) || i->debt() == -1); |
62e76326 | 949 | |
c7329b75 | 950 | if (!canPackMoreRanges()) { |
bf8fe701 | 951 | debugs(33, 3, "clientPackRange: Returning because !canPackMoreRanges."); |
c7329b75 | 952 | |
953 | if (i->debt() == 0) | |
954 | /* put terminating boundary for multiparts */ | |
955 | clientPackTermBound(i->boundary, mb); | |
62e76326 | 956 | |
62e76326 | 957 | return; |
c7329b75 | 958 | } |
62e76326 | 959 | |
47f6e231 | 960 | int64_t next = getNextRangeOffset(); |
62e76326 | 961 | |
962 | assert (next >= http->out.offset); | |
963 | ||
ed013b6c | 964 | int64_t skip = next - http->out.offset; |
62e76326 | 965 | |
2512d159 | 966 | /* adjust for not to be transmitted bytes */ |
967 | http->out.offset = next; | |
968 | ||
969 | if (available.size() <= skip) | |
62e76326 | 970 | return; |
971 | ||
2512d159 | 972 | available.start += skip; |
62e76326 | 973 | |
2512d159 | 974 | buf += skip; |
975 | ||
976 | if (copy_sz == 0) | |
977 | return; | |
528b2c61 | 978 | } |
979 | } | |
980 | ||
63be0a78 | 981 | /** returns expected content length for multi-range replies |
528b2c61 | 982 | * note: assumes that httpHdrRangeCanonize has already been called |
983 | * warning: assumes that HTTP headers for individual ranges at the | |
984 | * time of the actuall assembly will be exactly the same as | |
985 | * the headers when clientMRangeCLen() is called */ | |
986 | int | |
987 | ClientHttpRequest::mRangeCLen() | |
c8be6d7b | 988 | { |
47f6e231 | 989 | int64_t clen = 0; |
c8be6d7b | 990 | MemBuf mb; |
528b2c61 | 991 | |
86a2f789 | 992 | assert(memObject()); |
528b2c61 | 993 | |
2fe7eff9 | 994 | mb.init(); |
528b2c61 | 995 | HttpHdrRange::iterator pos = request->range->begin(); |
62e76326 | 996 | |
528b2c61 | 997 | while (pos != request->range->end()) { |
62e76326 | 998 | /* account for headers for this range */ |
2fe7eff9 | 999 | mb.reset(); |
86a2f789 | 1000 | clientPackRangeHdr(memObject()->getReply(), |
62e76326 | 1001 | *pos, range_iter.boundary, &mb); |
1002 | clen += mb.size; | |
528b2c61 | 1003 | |
62e76326 | 1004 | /* account for range content */ |
1005 | clen += (*pos)->length; | |
528b2c61 | 1006 | |
4a7a3d56 | 1007 | debugs(33, 6, "clientMRangeCLen: (clen += " << mb.size << " + " << (*pos)->length << ") == " << clen); |
62e76326 | 1008 | ++pos; |
528b2c61 | 1009 | } |
62e76326 | 1010 | |
528b2c61 | 1011 | /* account for the terminating boundary */ |
2fe7eff9 | 1012 | mb.reset(); |
62e76326 | 1013 | |
528b2c61 | 1014 | clientPackTermBound(range_iter.boundary, &mb); |
62e76326 | 1015 | |
528b2c61 | 1016 | clen += mb.size; |
1017 | ||
2fe7eff9 | 1018 | mb.clean(); |
62e76326 | 1019 | |
528b2c61 | 1020 | return clen; |
1021 | } | |
1022 | ||
63be0a78 | 1023 | /** |
528b2c61 | 1024 | * returns true if If-Range specs match reply, false otherwise |
1025 | */ | |
1026 | static int | |
59a1efb2 | 1027 | clientIfRangeMatch(ClientHttpRequest * http, HttpReply * rep) |
528b2c61 | 1028 | { |
a9925b40 | 1029 | const TimeOrTag spec = http->request->header.getTimeOrTag(HDR_IF_RANGE); |
528b2c61 | 1030 | /* check for parsing falure */ |
62e76326 | 1031 | |
528b2c61 | 1032 | if (!spec.valid) |
62e76326 | 1033 | return 0; |
1034 | ||
528b2c61 | 1035 | /* got an ETag? */ |
1036 | if (spec.tag.str) { | |
a9925b40 | 1037 | ETag rep_tag = rep->header.getETag(HDR_ETAG); |
bf8fe701 | 1038 | debugs(33, 3, "clientIfRangeMatch: ETags: " << spec.tag.str << " and " << |
1039 | (rep_tag.str ? rep_tag.str : "<none>")); | |
62e76326 | 1040 | |
1041 | if (!rep_tag.str) | |
1042 | return 0; /* entity has no etag to compare with! */ | |
1043 | ||
1044 | if (spec.tag.weak || rep_tag.weak) { | |
bf8fe701 | 1045 | debugs(33, 1, "clientIfRangeMatch: Weak ETags are not allowed in If-Range: " << spec.tag.str << " ? " << rep_tag.str); |
62e76326 | 1046 | return 0; /* must use strong validator for sub-range requests */ |
1047 | } | |
1048 | ||
1049 | return etagIsEqual(&rep_tag, &spec.tag); | |
528b2c61 | 1050 | } |
62e76326 | 1051 | |
528b2c61 | 1052 | /* got modification time? */ |
1053 | if (spec.time >= 0) { | |
86a2f789 | 1054 | return http->storeEntry()->lastmod <= spec.time; |
528b2c61 | 1055 | } |
62e76326 | 1056 | |
528b2c61 | 1057 | assert(0); /* should not happen */ |
1058 | return 0; | |
1059 | } | |
1060 | ||
63be0a78 | 1061 | /** |
1062 | * generates a "unique" boundary string for multipart responses | |
528b2c61 | 1063 | * the caller is responsible for cleaning the string */ |
30abd221 | 1064 | String |
528b2c61 | 1065 | ClientHttpRequest::rangeBoundaryStr() const |
1066 | { | |
1067 | assert(this); | |
1068 | const char *key; | |
7dbca7a4 AJ |
1069 | String b(APP_FULLNAME); |
1070 | b.append(":",1); | |
86a2f789 | 1071 | key = storeEntry()->getMD5Text(); |
528b2c61 | 1072 | b.append(key, strlen(key)); |
1073 | return b; | |
1074 | } | |
1075 | ||
63be0a78 | 1076 | /** adds appropriate Range headers if needed */ |
528b2c61 | 1077 | void |
1078 | ClientSocketContext::buildRangeHeader(HttpReply * rep) | |
1079 | { | |
1080 | HttpHeader *hdr = rep ? &rep->header : 0; | |
1081 | const char *range_err = NULL; | |
190154cf | 1082 | HttpRequest *request = http->request; |
528b2c61 | 1083 | assert(request->range); |
1084 | /* check if we still want to do ranges */ | |
62e76326 | 1085 | |
528b2c61 | 1086 | if (!rep) |
62e76326 | 1087 | range_err = "no [parse-able] reply"; |
528b2c61 | 1088 | else if ((rep->sline.status != HTTP_OK) && (rep->sline.status != HTTP_PARTIAL_CONTENT)) |
62e76326 | 1089 | range_err = "wrong status code"; |
a9925b40 | 1090 | else if (hdr->has(HDR_CONTENT_RANGE)) |
62e76326 | 1091 | range_err = "origin server does ranges"; |
528b2c61 | 1092 | else if (rep->content_length < 0) |
62e76326 | 1093 | range_err = "unknown length"; |
86a2f789 | 1094 | else if (rep->content_length != http->memObject()->getReply()->content_length) |
62e76326 | 1095 | range_err = "INCONSISTENT length"; /* a bug? */ |
96cbbe03 | 1096 | |
1097 | /* hits only - upstream peer determines correct behaviour on misses, and client_side_reply determines | |
9e008dda | 1098 | * hits candidates |
96cbbe03 | 1099 | */ |
a9925b40 | 1100 | else if (logTypeIsATcpHit(http->logType) && http->request->header.has(HDR_IF_RANGE) && !clientIfRangeMatch(http, rep)) |
62e76326 | 1101 | range_err = "If-Range match failed"; |
528b2c61 | 1102 | else if (!http->request->range->canonize(rep)) |
62e76326 | 1103 | range_err = "canonization failed"; |
528b2c61 | 1104 | else if (http->request->range->isComplex()) |
62e76326 | 1105 | range_err = "too complex range header"; |
86f6a21f | 1106 | else if (!logTypeIsATcpHit(http->logType) && http->request->range->offsetLimitExceeded()) |
62e76326 | 1107 | range_err = "range outside range_offset_limit"; |
1108 | ||
528b2c61 | 1109 | /* get rid of our range specs on error */ |
1110 | if (range_err) { | |
b631f31c | 1111 | /* XXX We do this here because we need canonisation etc. However, this current |
9e008dda | 1112 | * code will lead to incorrect store offset requests - the store will have the |
b631f31c | 1113 | * offset data, but we won't be requesting it. |
1114 | * So, we can either re-request, or generate an error | |
1115 | */ | |
bf8fe701 | 1116 | debugs(33, 3, "clientBuildRangeHeader: will not do ranges: " << range_err << "."); |
00d77d6b | 1117 | delete http->request->range; |
62e76326 | 1118 | http->request->range = NULL; |
c8be6d7b | 1119 | } else { |
3cff087f | 1120 | /* XXX: TODO: Review, this unconditional set may be wrong. - TODO: review. */ |
1121 | httpStatusLineSet(&rep->sline, rep->sline.version, | |
1122 | HTTP_PARTIAL_CONTENT, NULL); | |
fedd1531 | 1123 | // web server responded with a valid, but unexpected range. |
1124 | // will (try-to) forward as-is. | |
1125 | //TODO: we should cope with multirange request/responses | |
1126 | bool replyMatchRequest = rep->content_range != NULL ? | |
1127 | request->range->contains(rep->content_range->spec) : | |
1128 | true; | |
62e76326 | 1129 | const int spec_count = http->request->range->specs.count; |
47f6e231 | 1130 | int64_t actual_clen = -1; |
62e76326 | 1131 | |
47f6e231 | 1132 | debugs(33, 3, "clientBuildRangeHeader: range spec count: " << |
9e008dda | 1133 | spec_count << " virgin clen: " << rep->content_length); |
62e76326 | 1134 | assert(spec_count > 0); |
1135 | /* ETags should not be returned with Partial Content replies? */ | |
a9925b40 | 1136 | hdr->delById(HDR_ETAG); |
62e76326 | 1137 | /* append appropriate header(s) */ |
1138 | ||
1139 | if (spec_count == 1) { | |
fedd1531 | 1140 | if (!replyMatchRequest) { |
1141 | hdr->delById(HDR_CONTENT_RANGE); | |
1142 | hdr->putContRange(rep->content_range); | |
1143 | actual_clen = rep->content_length; | |
1144 | //http->range_iter.pos = rep->content_range->spec.begin(); | |
1145 | (*http->range_iter.pos)->offset = rep->content_range->spec.offset; | |
1146 | (*http->range_iter.pos)->length = rep->content_range->spec.length; | |
1147 | ||
1148 | } else { | |
1149 | HttpHdrRange::iterator pos = http->request->range->begin(); | |
1150 | assert(*pos); | |
1151 | /* append Content-Range */ | |
1152 | ||
1153 | if (!hdr->has(HDR_CONTENT_RANGE)) { | |
1154 | /* No content range, so this was a full object we are | |
1155 | * sending parts of. | |
1156 | */ | |
1157 | httpHeaderAddContRange(hdr, **pos, rep->content_length); | |
1158 | } | |
1159 | ||
1160 | /* set new Content-Length to the actual number of bytes | |
1161 | * transmitted in the message-body */ | |
1162 | actual_clen = (*pos)->length; | |
62e76326 | 1163 | } |
62e76326 | 1164 | } else { |
1165 | /* multipart! */ | |
1166 | /* generate boundary string */ | |
1167 | http->range_iter.boundary = http->rangeBoundaryStr(); | |
1168 | /* delete old Content-Type, add ours */ | |
a9925b40 | 1169 | hdr->delById(HDR_CONTENT_TYPE); |
62e76326 | 1170 | httpHeaderPutStrf(hdr, HDR_CONTENT_TYPE, |
1171 | "multipart/byteranges; boundary=\"%s\"", | |
30abd221 | 1172 | http->range_iter.boundary.buf()); |
62e76326 | 1173 | /* Content-Length is not required in multipart responses |
1174 | * but it is always nice to have one */ | |
1175 | actual_clen = http->mRangeCLen(); | |
2512d159 | 1176 | /* http->out needs to start where we want data at */ |
1177 | http->out.offset = http->range_iter.currentSpec()->offset; | |
62e76326 | 1178 | } |
1179 | ||
1180 | /* replace Content-Length header */ | |
1181 | assert(actual_clen >= 0); | |
1182 | ||
a9925b40 | 1183 | hdr->delById(HDR_CONTENT_LENGTH); |
62e76326 | 1184 | |
47f6e231 | 1185 | hdr->putInt64(HDR_CONTENT_LENGTH, actual_clen); |
62e76326 | 1186 | |
bf8fe701 | 1187 | debugs(33, 3, "clientBuildRangeHeader: actual content length: " << actual_clen); |
62e76326 | 1188 | |
1189 | /* And start the range iter off */ | |
1190 | http->range_iter.updateSpec(); | |
c8be6d7b | 1191 | } |
528b2c61 | 1192 | } |
1193 | ||
1194 | void | |
1195 | ClientSocketContext::prepareReply(HttpReply * rep) | |
1196 | { | |
fedd1531 | 1197 | reply = rep; |
1198 | ||
528b2c61 | 1199 | if (http->request->range) |
62e76326 | 1200 | buildRangeHeader(rep); |
528b2c61 | 1201 | } |
1202 | ||
1203 | void | |
1204 | ClientSocketContext::sendStartOfMessage(HttpReply * rep, StoreIOBuffer bodyData) | |
1205 | { | |
1206 | prepareReply(rep); | |
528b2c61 | 1207 | assert (rep); |
06a5ae20 | 1208 | MemBuf *mb = rep->pack(); |
528b2c61 | 1209 | /* Save length of headers for persistent conn checks */ |
032785bf | 1210 | http->out.headers_sz = mb->contentSize(); |
528b2c61 | 1211 | #if HEADERS_LOG |
62e76326 | 1212 | |
528b2c61 | 1213 | headersLog(0, 0, http->request->method, rep); |
1214 | #endif | |
62e76326 | 1215 | |
c8be6d7b | 1216 | if (bodyData.data && bodyData.length) { |
62e76326 | 1217 | if (!multipartRangeRequest()) { |
2512d159 | 1218 | size_t length = lengthToSend(bodyData.range()); |
62e76326 | 1219 | noteSentBodyBytes (length); |
1220 | ||
2fe7eff9 | 1221 | mb->append(bodyData.data, length); |
62e76326 | 1222 | } else { |
032785bf | 1223 | packRange(bodyData, mb); |
62e76326 | 1224 | } |
c8be6d7b | 1225 | } |
62e76326 | 1226 | |
c8be6d7b | 1227 | /* write */ |
425802c8 | 1228 | debugs(33,7, HERE << "sendStartOfMessage schedules clientWriteComplete"); |
9e008dda AJ |
1229 | AsyncCall::Pointer call = commCbCall(33, 5, "clientWriteComplete", |
1230 | CommIoCbPtrFun(clientWriteComplete, this)); | |
1cf238db | 1231 | comm_write_mbuf(fd(), mb, call); |
62e76326 | 1232 | |
032785bf | 1233 | delete mb; |
c8be6d7b | 1234 | } |
1235 | ||
63be0a78 | 1236 | /** |
7dc5f514 | 1237 | * Write a chunk of data to a client socket. If the reply is present, |
1238 | * send the reply headers down the wire too, and clean them up when | |
1239 | * finished. | |
9e008dda | 1240 | * Pre-condition: |
edce4d98 | 1241 | * The request is one backed by a connection, not an internal request. |
1242 | * data context is not NULL | |
1243 | * There are no more entries in the stream chain. | |
2246b732 | 1244 | */ |
edce4d98 | 1245 | static void |
59a1efb2 | 1246 | clientSocketRecipient(clientStreamNode * node, ClientHttpRequest * http, |
2324cda2 | 1247 | HttpReply * rep, StoreIOBuffer receivedData) |
edce4d98 | 1248 | { |
1249 | int fd; | |
edce4d98 | 1250 | /* Test preconditions */ |
1251 | assert(node != NULL); | |
559da936 | 1252 | PROF_start(clientSocketRecipient); |
62e76326 | 1253 | /* TODO: handle this rather than asserting |
9e008dda AJ |
1254 | * - it should only ever happen if we cause an abort and |
1255 | * the callback chain loops back to here, so we can simply return. | |
1256 | * However, that itself shouldn't happen, so it stays as an assert for now. | |
edce4d98 | 1257 | */ |
1258 | assert(cbdataReferenceValid(node)); | |
edce4d98 | 1259 | assert(node->node.next == NULL); |
0655fa4d | 1260 | ClientSocketContext::Pointer context = dynamic_cast<ClientSocketContext *>(node->data.getRaw()); |
94a396a3 | 1261 | assert(context != NULL); |
98242069 | 1262 | assert(connIsUsable(http->getConn())); |
1263 | fd = http->getConn()->fd; | |
528b2c61 | 1264 | /* TODO: check offset is what we asked for */ |
62e76326 | 1265 | |
98242069 | 1266 | if (context != http->getConn()->getCurrentContext()) { |
2324cda2 | 1267 | context->deferRecipientForLater(node, rep, receivedData); |
559da936 | 1268 | PROF_stop(clientSocketRecipient); |
62e76326 | 1269 | return; |
edce4d98 | 1270 | } |
62e76326 | 1271 | |
2324cda2 | 1272 | if (responseFinishedOrFailed(rep, receivedData)) { |
0655fa4d | 1273 | context->writeComplete(fd, NULL, 0, COMM_OK); |
559da936 | 1274 | PROF_stop(clientSocketRecipient); |
62e76326 | 1275 | return; |
edce4d98 | 1276 | } |
62e76326 | 1277 | |
0655fa4d | 1278 | if (!context->startOfOutput()) |
2324cda2 | 1279 | context->sendBody(rep, receivedData); |
7684c4b1 | 1280 | else { |
a4785954 | 1281 | assert(rep); |
90a8964c | 1282 | http->al.reply = HTTPMSGLOCK(rep); |
2324cda2 | 1283 | context->sendStartOfMessage(rep, receivedData); |
7684c4b1 | 1284 | } |
fc68f6b1 | 1285 | |
559da936 | 1286 | PROF_stop(clientSocketRecipient); |
edce4d98 | 1287 | } |
1288 | ||
63be0a78 | 1289 | /** |
1290 | * Called when a downstream node is no longer interested in | |
edce4d98 | 1291 | * our data. As we are a terminal node, this means on aborts |
1292 | * only | |
1293 | */ | |
1294 | void | |
59a1efb2 | 1295 | clientSocketDetach(clientStreamNode * node, ClientHttpRequest * http) |
edce4d98 | 1296 | { |
edce4d98 | 1297 | /* Test preconditions */ |
1298 | assert(node != NULL); | |
62e76326 | 1299 | /* TODO: handle this rather than asserting |
9e008dda AJ |
1300 | * - it should only ever happen if we cause an abort and |
1301 | * the callback chain loops back to here, so we can simply return. | |
edce4d98 | 1302 | * However, that itself shouldn't happen, so it stays as an assert for now. |
1303 | */ | |
1304 | assert(cbdataReferenceValid(node)); | |
1305 | /* Set null by ContextFree */ | |
edce4d98 | 1306 | assert(node->node.next == NULL); |
0655fa4d | 1307 | /* this is the assert discussed above */ |
e4a67a80 | 1308 | assert(NULL == dynamic_cast<ClientSocketContext *>(node->data.getRaw())); |
edce4d98 | 1309 | /* We are only called when the client socket shutsdown. |
1310 | * Tell the prev pipeline member we're finished | |
1311 | */ | |
1312 | clientStreamDetach(node, http); | |
7a2f978b | 1313 | } |
1314 | ||
f4f278b5 | 1315 | static void |
25f651c1 | 1316 | clientWriteBodyComplete(int fd, char *buf, size_t size, comm_err_t errflag, int xerrno, void *data) |
f4f278b5 | 1317 | { |
425802c8 | 1318 | debugs(33,7, HERE << "clientWriteBodyComplete schedules clientWriteComplete"); |
2b663917 | 1319 | clientWriteComplete(fd, NULL, size, errflag, xerrno, data); |
c8be6d7b | 1320 | } |
1321 | ||
1322 | void | |
a46d2c0e | 1323 | ConnStateData::readNextRequest() |
c8be6d7b | 1324 | { |
bf8fe701 | 1325 | debugs(33, 5, "ConnStateData::readNextRequest: FD " << fd << " reading next req"); |
1326 | ||
a46d2c0e | 1327 | fd_note(fd, "Waiting for next request"); |
63be0a78 | 1328 | /** |
c8be6d7b | 1329 | * Set the timeout BEFORE calling clientReadRequest(). |
1330 | */ | |
1cf238db | 1331 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; |
1332 | AsyncCall::Pointer timeoutCall = asyncCall(33, 5, "ConnStateData::requestTimeout", | |
9e008dda | 1333 | TimeoutDialer(this, &ConnStateData::requestTimeout)); |
1cf238db | 1334 | commSetTimeout(fd, Config.Timeout.persistent_request, timeoutCall); |
1335 | ||
a46d2c0e | 1336 | readSomeData(); |
63be0a78 | 1337 | /** Please don't do anything with the FD past here! */ |
c8be6d7b | 1338 | } |
1339 | ||
1340 | void | |
1cf238db | 1341 | ClientSocketContextPushDeferredIfNeeded(ClientSocketContext::Pointer deferredRequest, ConnStateData * conn) |
c8be6d7b | 1342 | { |
bf8fe701 | 1343 | debugs(33, 2, "ClientSocketContextPushDeferredIfNeeded: FD " << conn->fd << " Sending next"); |
1344 | ||
63be0a78 | 1345 | /** If the client stream is waiting on a socket write to occur, then */ |
62e76326 | 1346 | |
c8be6d7b | 1347 | if (deferredRequest->flags.deferred) { |
63be0a78 | 1348 | /** NO data is allowed to have been sent. */ |
62e76326 | 1349 | assert(deferredRequest->http->out.size == 0); |
63be0a78 | 1350 | /** defer now. */ |
62e76326 | 1351 | clientSocketRecipient(deferredRequest->deferredparams.node, |
1352 | deferredRequest->http, | |
1353 | deferredRequest->deferredparams.rep, | |
1354 | deferredRequest->deferredparams.queuedBuffer); | |
c8be6d7b | 1355 | } |
62e76326 | 1356 | |
63be0a78 | 1357 | /** otherwise, the request is still active in a callbacksomewhere, |
c8be6d7b | 1358 | * and we are done |
f4f278b5 | 1359 | */ |
f4f278b5 | 1360 | } |
1361 | ||
0655fa4d | 1362 | void |
1363 | ClientSocketContext::keepaliveNextRequest() | |
1a92a1e2 | 1364 | { |
1cf238db | 1365 | ConnStateData * conn = http->getConn(); |
f900210a | 1366 | bool do_next_read = false; |
bd4e6ec8 | 1367 | |
bf8fe701 | 1368 | debugs(33, 3, "ClientSocketContext::keepaliveNextRequest: FD " << conn->fd); |
0655fa4d | 1369 | connIsFinished(); |
1370 | ||
d67acb4e AJ |
1371 | if (conn->pinning.pinned && conn->pinning.fd == -1) { |
1372 | debugs(33, 2, "clientKeepaliveNextRequest: FD " << conn->fd << " Connection was pinned but server side gone. Terminating client connection"); | |
1373 | comm_close(conn->fd); | |
1374 | return; | |
1375 | } | |
1376 | ||
63be0a78 | 1377 | /** \par |
f900210a | 1378 | * Attempt to parse a request from the request buffer. |
1379 | * If we've been fed a pipelined request it may already | |
1380 | * be in our read buffer. | |
1381 | * | |
63be0a78 | 1382 | \par |
f900210a | 1383 | * This needs to fall through - if we're unlucky and parse the _last_ request |
1384 | * from our read buffer we may never re-register for another client read. | |
1385 | */ | |
1386 | ||
1387 | if (clientParseRequest(conn, do_next_read)) { | |
bf8fe701 | 1388 | debugs(33, 3, "clientSocketContext::keepaliveNextRequest: FD " << conn->fd << ": parsed next request from buffer"); |
f900210a | 1389 | } |
1390 | ||
63be0a78 | 1391 | /** \par |
f900210a | 1392 | * Either we need to kick-start another read or, if we have |
1393 | * a half-closed connection, kill it after the last request. | |
1394 | * This saves waiting for half-closed connections to finished being | |
1395 | * half-closed _AND_ then, sometimes, spending "Timeout" time in | |
1396 | * the keepalive "Waiting for next request" state. | |
1397 | */ | |
1398 | if (commIsHalfClosed(conn->fd) && (conn->getConcurrentRequestCount() == 0)) { | |
bf8fe701 | 1399 | debugs(33, 3, "ClientSocketContext::keepaliveNextRequest: half-closed client with no pending requests, closing"); |
f900210a | 1400 | comm_close(conn->fd); |
1401 | return; | |
1402 | } | |
1403 | ||
0655fa4d | 1404 | ClientSocketContext::Pointer deferredRequest; |
62e76326 | 1405 | |
63be0a78 | 1406 | /** \par |
f900210a | 1407 | * At this point we either have a parsed request (which we've |
1408 | * kicked off the processing for) or not. If we have a deferred | |
1409 | * request (parsed but deferred for pipeling processing reasons) | |
1410 | * then look at processing it. If not, simply kickstart | |
1411 | * another read. | |
1412 | */ | |
1413 | ||
1414 | if ((deferredRequest = conn->getCurrentContext()).getRaw()) { | |
bf8fe701 | 1415 | debugs(33, 3, "ClientSocketContext:: FD " << conn->fd << ": calling PushDeferredIfNeeded"); |
62e76326 | 1416 | ClientSocketContextPushDeferredIfNeeded(deferredRequest, conn); |
f900210a | 1417 | } else { |
bf8fe701 | 1418 | debugs(33, 3, "ClientSocketContext:: FD " << conn->fd << ": calling conn->readNextRequest()"); |
f900210a | 1419 | conn->readNextRequest(); |
1420 | } | |
1a92a1e2 | 1421 | } |
1422 | ||
c8be6d7b | 1423 | void |
1424 | clientUpdateSocketStats(log_type logType, size_t size) | |
1425 | { | |
1426 | if (size == 0) | |
62e76326 | 1427 | return; |
1428 | ||
c8be6d7b | 1429 | kb_incr(&statCounter.client_http.kbytes_out, size); |
62e76326 | 1430 | |
c8be6d7b | 1431 | if (logTypeIsATcpHit(logType)) |
62e76326 | 1432 | kb_incr(&statCounter.client_http.hit_kbytes_out, size); |
c8be6d7b | 1433 | } |
1434 | ||
63be0a78 | 1435 | /** |
528b2c61 | 1436 | * increments iterator "i" |
63be0a78 | 1437 | * used by clientPackMoreRanges |
1438 | * | |
1439 | \retval true there is still data available to pack more ranges | |
9e008dda | 1440 | \retval false |
63be0a78 | 1441 | */ |
528b2c61 | 1442 | bool |
1443 | ClientSocketContext::canPackMoreRanges() const | |
1444 | { | |
63be0a78 | 1445 | /** first update iterator "i" if needed */ |
62e76326 | 1446 | |
528b2c61 | 1447 | if (!http->range_iter.debt()) { |
63be0a78 | 1448 | debugs(33, 5, "ClientSocketContext::canPackMoreRanges: At end of current range spec for FD " << fd()); |
62e76326 | 1449 | |
1450 | if (http->range_iter.pos.incrementable()) | |
1451 | ++http->range_iter.pos; | |
1452 | ||
1453 | http->range_iter.updateSpec(); | |
528b2c61 | 1454 | } |
62e76326 | 1455 | |
528b2c61 | 1456 | assert(!http->range_iter.debt() == !http->range_iter.currentSpec()); |
63be0a78 | 1457 | |
528b2c61 | 1458 | /* paranoid sync condition */ |
1459 | /* continue condition: need_more_data */ | |
bf8fe701 | 1460 | debugs(33, 5, "ClientSocketContext::canPackMoreRanges: returning " << (http->range_iter.currentSpec() ? true : false)); |
528b2c61 | 1461 | return http->range_iter.currentSpec() ? true : false; |
1462 | } | |
1463 | ||
47f6e231 | 1464 | int64_t |
528b2c61 | 1465 | ClientSocketContext::getNextRangeOffset() const |
1466 | { | |
1467 | if (http->request->range) { | |
62e76326 | 1468 | /* offset in range specs does not count the prefix of an http msg */ |
47f6e231 | 1469 | debugs (33, 5, "ClientSocketContext::getNextRangeOffset: http offset " << http->out.offset); |
62e76326 | 1470 | /* check: reply was parsed and range iterator was initialized */ |
1471 | assert(http->range_iter.valid); | |
1472 | /* filter out data according to range specs */ | |
1473 | assert (canPackMoreRanges()); | |
1474 | { | |
47f6e231 | 1475 | int64_t start; /* offset of still missing data */ |
62e76326 | 1476 | assert(http->range_iter.currentSpec()); |
1477 | start = http->range_iter.currentSpec()->offset + http->range_iter.currentSpec()->length - http->range_iter.debt(); | |
47f6e231 | 1478 | debugs(33, 3, "clientPackMoreRanges: in: offset: " << http->out.offset); |
1479 | debugs(33, 3, "clientPackMoreRanges: out:" | |
9e008dda AJ |
1480 | " start: " << start << |
1481 | " spec[" << http->range_iter.pos - http->request->range->begin() << "]:" << | |
1482 | " [" << http->range_iter.currentSpec()->offset << | |
1483 | ", " << http->range_iter.currentSpec()->offset + http->range_iter.currentSpec()->length << ")," | |
1484 | " len: " << http->range_iter.currentSpec()->length << | |
1485 | " debt: " << http->range_iter.debt()); | |
62e76326 | 1486 | if (http->range_iter.currentSpec()->length != -1) |
1487 | assert(http->out.offset <= start); /* we did not miss it */ | |
1488 | ||
1489 | return start; | |
1490 | } | |
1491 | ||
fedd1531 | 1492 | } else if (reply && reply->content_range) { |
1493 | /* request does not have ranges, but reply does */ | |
63be0a78 | 1494 | /** \todo FIXME: should use range_iter_pos on reply, as soon as reply->content_range |
1495 | * becomes HttpHdrRange rather than HttpHdrRangeSpec. | |
1496 | */ | |
fedd1531 | 1497 | return http->out.offset + reply->content_range->spec.offset; |
528b2c61 | 1498 | } |
1499 | ||
1500 | return http->out.offset; | |
1501 | } | |
1502 | ||
c8be6d7b | 1503 | void |
528b2c61 | 1504 | ClientSocketContext::pullData() |
c8be6d7b | 1505 | { |
ec69c304 | 1506 | debugs(33, 5, "ClientSocketContext::pullData: FD " << fd() << |
9e008dda | 1507 | " attempting to pull upstream data"); |
bf8fe701 | 1508 | |
c8be6d7b | 1509 | /* More data will be coming from the stream. */ |
528b2c61 | 1510 | StoreIOBuffer readBuffer; |
1511 | /* XXX: Next requested byte in the range sequence */ | |
1512 | /* XXX: length = getmaximumrangelenfgth */ | |
1513 | readBuffer.offset = getNextRangeOffset(); | |
c8be6d7b | 1514 | readBuffer.length = HTTP_REQBUF_SZ; |
528b2c61 | 1515 | readBuffer.data = reqbuf; |
1516 | /* we may note we have reached the end of the wanted ranges */ | |
1517 | clientStreamRead(getTail(), http, readBuffer); | |
1518 | } | |
1519 | ||
62e76326 | 1520 | clientStream_status_t |
528b2c61 | 1521 | ClientSocketContext::socketState() |
1522 | { | |
1523 | switch (clientStreamStatus(getTail(), http)) { | |
62e76326 | 1524 | |
1525 | case STREAM_NONE: | |
528b2c61 | 1526 | /* check for range support ending */ |
62e76326 | 1527 | |
528b2c61 | 1528 | if (http->request->range) { |
62e76326 | 1529 | /* check: reply was parsed and range iterator was initialized */ |
1530 | assert(http->range_iter.valid); | |
1531 | /* filter out data according to range specs */ | |
1532 | ||
1533 | if (!canPackMoreRanges()) { | |
920ba08d | 1534 | debugs(33, 5, HERE << "Range request at end of returnable " << |
9e008dda | 1535 | "range sequence on FD " << fd()); |
62e76326 | 1536 | |
1537 | if (http->request->flags.proxy_keepalive) | |
1538 | return STREAM_COMPLETE; | |
1539 | else | |
1540 | return STREAM_UNPLANNED_COMPLETE; | |
1541 | } | |
fedd1531 | 1542 | } else if (reply && reply->content_range) { |
425802c8 | 1543 | /* reply has content-range, but Squid is not managing ranges */ |
1544 | const int64_t &bytesSent = http->out.offset; | |
1545 | const int64_t &bytesExpected = reply->content_range->spec.length; | |
fedd1531 | 1546 | |
425802c8 | 1547 | debugs(33, 7, HERE << "body bytes sent vs. expected: " << |
9e008dda AJ |
1548 | bytesSent << " ? " << bytesExpected << " (+" << |
1549 | reply->content_range->spec.offset << ")"); | |
425802c8 | 1550 | |
1551 | // did we get at least what we expected, based on range specs? | |
1552 | ||
1553 | if (bytesSent == bytesExpected) // got everything | |
1554 | return STREAM_COMPLETE; | |
1555 | ||
1556 | // The logic below is not clear: If we got more than we | |
1557 | // expected why would persistency matter? Should not this | |
1558 | // always be an error? | |
1559 | if (bytesSent > bytesExpected) { // got extra | |
fedd1531 | 1560 | if (http->request->flags.proxy_keepalive) |
1561 | return STREAM_COMPLETE; | |
1562 | else | |
1563 | return STREAM_UNPLANNED_COMPLETE; | |
1564 | } | |
425802c8 | 1565 | |
1566 | // did not get enough yet, expecting more | |
62e76326 | 1567 | } |
1568 | ||
1569 | return STREAM_NONE; | |
1570 | ||
1571 | case STREAM_COMPLETE: | |
528b2c61 | 1572 | return STREAM_COMPLETE; |
62e76326 | 1573 | |
1574 | case STREAM_UNPLANNED_COMPLETE: | |
1575 | return STREAM_UNPLANNED_COMPLETE; | |
1576 | ||
1577 | case STREAM_FAILED: | |
1578 | return STREAM_FAILED; | |
528b2c61 | 1579 | } |
62e76326 | 1580 | |
528b2c61 | 1581 | fatal ("unreachable code\n"); |
1582 | return STREAM_NONE; | |
c8be6d7b | 1583 | } |
edce4d98 | 1584 | |
63be0a78 | 1585 | /** |
1586 | * A write has just completed to the client, or we have just realised there is | |
edce4d98 | 1587 | * no more data to send. |
1588 | */ | |
e6ccf245 | 1589 | void |
2b663917 | 1590 | clientWriteComplete(int fd, char *bufnotused, size_t size, comm_err_t errflag, int xerrno, void *data) |
7a2f978b | 1591 | { |
528b2c61 | 1592 | ClientSocketContext *context = (ClientSocketContext *)data; |
0655fa4d | 1593 | context->writeComplete (fd, bufnotused, size, errflag); |
1594 | } | |
1595 | ||
55e44db9 | 1596 | void |
1597 | ClientSocketContext::doClose() | |
1598 | { | |
1599 | comm_close(fd()); | |
1600 | } | |
1601 | ||
6e1d409c AR |
1602 | /** Called to initiate (and possibly complete) closing of the context. |
1603 | * The underlying socket may be already closed */ | |
55e44db9 | 1604 | void |
5f8252d2 | 1605 | ClientSocketContext::initiateClose(const char *reason) |
55e44db9 | 1606 | { |
5f8252d2 | 1607 | debugs(33, 5, HERE << "initiateClose: closing for " << reason); |
fc68f6b1 | 1608 | |
3b299123 | 1609 | if (http != NULL) { |
1cf238db | 1610 | ConnStateData * conn = http->getConn(); |
3b299123 | 1611 | |
1612 | if (conn != NULL) { | |
3e62bd58 | 1613 | if (const int64_t expecting = conn->bodySizeLeft()) { |
5f8252d2 | 1614 | debugs(33, 5, HERE << "ClientSocketContext::initiateClose: " << |
1615 | "closing, but first " << conn << " needs to read " << | |
1616 | expecting << " request body bytes with " << | |
1617 | conn->in.notYetUsed << " notYetUsed"); | |
1618 | ||
1619 | if (conn->closing()) { | |
1620 | debugs(33, 2, HERE << "avoiding double-closing " << conn); | |
1621 | return; | |
1622 | } | |
fc68f6b1 | 1623 | |
3b299123 | 1624 | /* |
1625 | * XXX We assume the reply fits in the TCP transmit | |
1626 | * window. If not the connection may stall while sending | |
1627 | * the reply (before reaching here) if the client does not | |
1628 | * try to read the response while sending the request body. | |
1629 | * As of yet we have not received any complaints indicating | |
1630 | * this may be an issue. | |
55e44db9 | 1631 | */ |
5f8252d2 | 1632 | conn->startClosing(reason); |
fc68f6b1 | 1633 | |
3b299123 | 1634 | return; |
1635 | } | |
1636 | } | |
55e44db9 | 1637 | } |
1638 | ||
1639 | doClose(); | |
1640 | } | |
1641 | ||
0655fa4d | 1642 | void |
1643 | ClientSocketContext::writeComplete(int fd, char *bufnotused, size_t size, comm_err_t errflag) | |
1644 | { | |
86a2f789 | 1645 | StoreEntry *entry = http->storeEntry(); |
7a2f978b | 1646 | http->out.size += size; |
c8be6d7b | 1647 | assert(fd > -1); |
e4049756 | 1648 | debugs(33, 5, "clientWriteComplete: FD " << fd << ", sz " << size << |
1649 | ", err " << errflag << ", off " << http->out.size << ", len " << | |
707fdc47 | 1650 | entry ? entry->objectLen() : 0); |
c8be6d7b | 1651 | clientUpdateSocketStats(http->logType, size); |
55e44db9 | 1652 | assert (this->fd() == fd); |
62e76326 | 1653 | |
5f8252d2 | 1654 | /* Bail out quickly on COMM_ERR_CLOSING - close handlers will tidy up */ |
fc68f6b1 | 1655 | |
5f8252d2 | 1656 | if (errflag == COMM_ERR_CLOSING) |
1657 | return; | |
1658 | ||
c8be6d7b | 1659 | if (errflag || clientHttpRequestStatus(fd, http)) { |
5f8252d2 | 1660 | initiateClose("failure or true request status"); |
62e76326 | 1661 | /* Do we leak here ? */ |
1662 | return; | |
edce4d98 | 1663 | } |
62e76326 | 1664 | |
0655fa4d | 1665 | switch (socketState()) { |
62e76326 | 1666 | |
edce4d98 | 1667 | case STREAM_NONE: |
0655fa4d | 1668 | pullData(); |
62e76326 | 1669 | break; |
1670 | ||
edce4d98 | 1671 | case STREAM_COMPLETE: |
bf8fe701 | 1672 | debugs(33, 5, "clientWriteComplete: FD " << fd << " Keeping Alive"); |
0655fa4d | 1673 | keepaliveNextRequest(); |
62e76326 | 1674 | return; |
1675 | ||
edce4d98 | 1676 | case STREAM_UNPLANNED_COMPLETE: |
6e1d409c AR |
1677 | initiateClose("STREAM_UNPLANNED_COMPLETE"); |
1678 | return; | |
62e76326 | 1679 | |
edce4d98 | 1680 | case STREAM_FAILED: |
6e1d409c | 1681 | initiateClose("STREAM_FAILED"); |
62e76326 | 1682 | return; |
1683 | ||
edce4d98 | 1684 | default: |
62e76326 | 1685 | fatal("Hit unreachable code in clientWriteComplete\n"); |
7a2f978b | 1686 | } |
1687 | } | |
1688 | ||
e6ccf245 | 1689 | extern "C" CSR clientGetMoreData; |
1690 | extern "C" CSS clientReplyStatus; | |
1691 | extern "C" CSD clientReplyDetach; | |
edce4d98 | 1692 | |
528b2c61 | 1693 | static ClientSocketContext * |
1cf238db | 1694 | parseHttpRequestAbort(ConnStateData * conn, const char *uri) |
038eb4ed | 1695 | { |
59a1efb2 | 1696 | ClientHttpRequest *http; |
528b2c61 | 1697 | ClientSocketContext *context; |
1698 | StoreIOBuffer tempBuffer; | |
a0355e95 | 1699 | http = new ClientHttpRequest(conn); |
c8be6d7b | 1700 | http->req_sz = conn->in.notYetUsed; |
edce4d98 | 1701 | http->uri = xstrdup(uri); |
c4b7a5a9 | 1702 | setLogUri (http, uri); |
528b2c61 | 1703 | context = ClientSocketContextNew(http); |
c8be6d7b | 1704 | tempBuffer.data = context->reqbuf; |
1705 | tempBuffer.length = HTTP_REQBUF_SZ; | |
edce4d98 | 1706 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, |
0655fa4d | 1707 | clientReplyStatus, new clientReplyContext(http), clientSocketRecipient, |
62e76326 | 1708 | clientSocketDetach, context, tempBuffer); |
edce4d98 | 1709 | return context; |
038eb4ed | 1710 | } |
1711 | ||
c8be6d7b | 1712 | char * |
1713 | skipLeadingSpace(char *aString) | |
1714 | { | |
1715 | char *result = aString; | |
62e76326 | 1716 | |
c8be6d7b | 1717 | while (xisspace(*aString)) |
62e76326 | 1718 | ++aString; |
1719 | ||
c8be6d7b | 1720 | return result; |
1721 | } | |
1722 | ||
63be0a78 | 1723 | /** |
d4a04ed5 | 1724 | * 'end' defaults to NULL for backwards compatibility |
1725 | * remove default value if we ever get rid of NULL-terminated | |
1726 | * request buffers. | |
1727 | */ | |
1728 | const char * | |
1729 | findTrailingHTTPVersion(const char *uriAndHTTPVersion, const char *end) | |
c8be6d7b | 1730 | { |
d4a04ed5 | 1731 | if (NULL == end) { |
1732 | end = uriAndHTTPVersion + strcspn(uriAndHTTPVersion, "\r\n"); | |
1733 | assert(end); | |
1734 | } | |
62e76326 | 1735 | |
d4a04ed5 | 1736 | for (; end > uriAndHTTPVersion; end--) { |
1737 | if (*end == '\n' || *end == '\r') | |
62e76326 | 1738 | continue; |
1739 | ||
d4a04ed5 | 1740 | if (xisspace(*end)) { |
1741 | if (strncasecmp(end + 1, "HTTP/", 5) == 0) | |
1742 | return end + 1; | |
62e76326 | 1743 | else |
1744 | break; | |
1745 | } | |
c8be6d7b | 1746 | } |
62e76326 | 1747 | |
3f38a55e | 1748 | return NULL; |
c8be6d7b | 1749 | } |
1750 | ||
c8be6d7b | 1751 | void |
59a1efb2 | 1752 | setLogUri(ClientHttpRequest * http, char const *uri) |
c8be6d7b | 1753 | { |
a46d0227 | 1754 | safe_free(http->log_uri); |
62e76326 | 1755 | |
c8be6d7b | 1756 | if (!stringHasCntl(uri)) |
62e76326 | 1757 | http->log_uri = xstrndup(uri, MAX_URL); |
c8be6d7b | 1758 | else |
62e76326 | 1759 | http->log_uri = xstrndup(rfc1738_escape_unescaped(uri), MAX_URL); |
c8be6d7b | 1760 | } |
1761 | ||
3f38a55e | 1762 | static void |
1cf238db | 1763 | prepareAcceleratedURL(ConnStateData * conn, ClientHttpRequest *http, char *url, const char *req_hdr) |
62e76326 | 1764 | { |
3f38a55e | 1765 | int vhost = conn->port->vhost; |
1766 | int vport = conn->port->vport; | |
1767 | char *host; | |
cc192b50 | 1768 | char ntoabuf[MAX_IPSTRLEN]; |
c8be6d7b | 1769 | |
3f38a55e | 1770 | http->flags.accel = 1; |
c8be6d7b | 1771 | |
3f38a55e | 1772 | /* BUG: Squid cannot deal with '*' URLs (RFC2616 5.1.2) */ |
c8be6d7b | 1773 | |
34399323 | 1774 | if (strncasecmp(url, "cache_object://", 15) == 0) |
1775 | return; /* already in good shape */ | |
1776 | ||
3f38a55e | 1777 | if (*url != '/') { |
62e76326 | 1778 | if (conn->port->vhost) |
1779 | return; /* already in good shape */ | |
1780 | ||
1781 | /* else we need to ignore the host name */ | |
1782 | url = strstr(url, "//"); | |
1783 | ||
3f38a55e | 1784 | #if SHOULD_REJECT_UNKNOWN_URLS |
62e76326 | 1785 | |
1786 | if (!url) | |
1787 | return parseHttpRequestAbort(conn, "error:invalid-request"); | |
1788 | ||
c8be6d7b | 1789 | #endif |
62e76326 | 1790 | |
1791 | if (url) | |
1792 | url = strchr(url + 2, '/'); | |
1793 | ||
1794 | if (!url) | |
1795 | url = (char *) "/"; | |
3f38a55e | 1796 | } |
1797 | ||
1798 | if (internalCheck(url)) { | |
62e76326 | 1799 | /* prepend our name & port */ |
1800 | http->uri = xstrdup(internalLocalUri(NULL, url)); | |
ae7ff0b8 | 1801 | return; |
1802 | } | |
1803 | ||
1804 | const bool switchedToHttps = conn->switchedToHttps(); | |
1805 | const bool tryHostHeader = vhost || switchedToHttps; | |
1806 | if (tryHostHeader && (host = mime_get_header(req_hdr, "Host")) != NULL) { | |
62e76326 | 1807 | int url_sz = strlen(url) + 32 + Config.appendDomainLen + |
1808 | strlen(host); | |
1809 | http->uri = (char *)xcalloc(url_sz, 1); | |
ae7ff0b8 | 1810 | const char *protocol = switchedToHttps ? |
9e008dda | 1811 | "https" : conn->port->protocol; |
ae7ff0b8 | 1812 | snprintf(http->uri, url_sz, "%s://%s%s", protocol, host, url); |
bf8fe701 | 1813 | debugs(33, 5, "ACCEL VHOST REWRITE: '" << http->uri << "'"); |
3f38a55e | 1814 | } else if (conn->port->defaultsite) { |
62e76326 | 1815 | int url_sz = strlen(url) + 32 + Config.appendDomainLen + |
1816 | strlen(conn->port->defaultsite); | |
1817 | http->uri = (char *)xcalloc(url_sz, 1); | |
1818 | snprintf(http->uri, url_sz, "%s://%s%s", | |
1819 | conn->port->protocol, conn->port->defaultsite, url); | |
bf8fe701 | 1820 | debugs(33, 5, "ACCEL DEFAULTSITE REWRITE: '" << http->uri <<"'"); |
3f38a55e | 1821 | } else if (vport == -1) { |
62e76326 | 1822 | /* Put the local socket IP address as the hostname. */ |
1823 | int url_sz = strlen(url) + 32 + Config.appendDomainLen; | |
1824 | http->uri = (char *)xcalloc(url_sz, 1); | |
1825 | snprintf(http->uri, url_sz, "%s://%s:%d%s", | |
98242069 | 1826 | http->getConn()->port->protocol, |
cc192b50 | 1827 | http->getConn()->me.NtoA(ntoabuf,MAX_IPSTRLEN), |
1828 | http->getConn()->me.GetPort(), url); | |
bf8fe701 | 1829 | debugs(33, 5, "ACCEL VPORT REWRITE: '" << http->uri << "'"); |
3f38a55e | 1830 | } else if (vport > 0) { |
62e76326 | 1831 | /* Put the local socket IP address as the hostname, but static port */ |
1832 | int url_sz = strlen(url) + 32 + Config.appendDomainLen; | |
1833 | http->uri = (char *)xcalloc(url_sz, 1); | |
1834 | snprintf(http->uri, url_sz, "%s://%s:%d%s", | |
98242069 | 1835 | http->getConn()->port->protocol, |
cc192b50 | 1836 | http->getConn()->me.NtoA(ntoabuf,MAX_IPSTRLEN), |
62e76326 | 1837 | vport, url); |
bf8fe701 | 1838 | debugs(33, 5, "ACCEL VPORT REWRITE: '" << http->uri << "'"); |
3f38a55e | 1839 | } |
1840 | } | |
1841 | ||
1842 | static void | |
1cf238db | 1843 | prepareTransparentURL(ConnStateData * conn, ClientHttpRequest *http, char *url, const char *req_hdr) |
62e76326 | 1844 | { |
3f38a55e | 1845 | char *host; |
cc192b50 | 1846 | char ntoabuf[MAX_IPSTRLEN]; |
3f38a55e | 1847 | |
3f38a55e | 1848 | if (*url != '/') |
62e76326 | 1849 | return; /* already in good shape */ |
3f38a55e | 1850 | |
1851 | /* BUG: Squid cannot deal with '*' URLs (RFC2616 5.1.2) */ | |
1852 | ||
f024c970 | 1853 | if ((host = mime_get_header(req_hdr, "Host")) != NULL) { |
62e76326 | 1854 | int url_sz = strlen(url) + 32 + Config.appendDomainLen + |
1855 | strlen(host); | |
1856 | http->uri = (char *)xcalloc(url_sz, 1); | |
1857 | snprintf(http->uri, url_sz, "%s://%s%s", | |
1858 | conn->port->protocol, host, url); | |
bf8fe701 | 1859 | debugs(33, 5, "TRANSPARENT HOST REWRITE: '" << http->uri <<"'"); |
c8be6d7b | 1860 | } else { |
62e76326 | 1861 | /* Put the local socket IP address as the hostname. */ |
1862 | int url_sz = strlen(url) + 32 + Config.appendDomainLen; | |
1863 | http->uri = (char *)xcalloc(url_sz, 1); | |
1864 | snprintf(http->uri, url_sz, "%s://%s:%d%s", | |
98242069 | 1865 | http->getConn()->port->protocol, |
cc192b50 | 1866 | http->getConn()->me.NtoA(ntoabuf,MAX_IPSTRLEN), |
1867 | http->getConn()->me.GetPort(), url); | |
bf8fe701 | 1868 | debugs(33, 5, "TRANSPARENT REWRITE: '" << http->uri << "'"); |
c8be6d7b | 1869 | } |
c8be6d7b | 1870 | } |
1871 | ||
63be0a78 | 1872 | /** |
7a2f978b | 1873 | * parseHttpRequest() |
9e008dda | 1874 | * |
7a2f978b | 1875 | * Returns |
c4b7a5a9 | 1876 | * NULL on incomplete requests |
528b2c61 | 1877 | * a ClientSocketContext structure on success or failure. |
c4b7a5a9 | 1878 | * Sets result->flags.parsed_ok to 0 if failed to parse the request. |
1879 | * Sets result->flags.parsed_ok to 1 if we have a good request. | |
7a2f978b | 1880 | */ |
528b2c61 | 1881 | static ClientSocketContext * |
1cf238db | 1882 | parseHttpRequest(ConnStateData *conn, HttpParser *hp, HttpRequestMethod * method_p, HttpVersion *http_ver) |
7a2f978b | 1883 | { |
7a2f978b | 1884 | char *url = NULL; |
1885 | char *req_hdr = NULL; | |
2334c194 | 1886 | char *end; |
c68e9c6b | 1887 | size_t req_sz; |
59a1efb2 | 1888 | ClientHttpRequest *http; |
528b2c61 | 1889 | ClientSocketContext *result; |
1890 | StoreIOBuffer tempBuffer; | |
84cc2635 | 1891 | int r; |
7a2f978b | 1892 | |
6792f0d3 | 1893 | /* pre-set these values to make aborting simpler */ |
6792f0d3 | 1894 | *method_p = METHOD_NONE; |
6792f0d3 | 1895 | |
84cc2635 | 1896 | /* Attempt to parse the first line; this'll define the method, url, version and header begin */ |
1897 | r = HttpParserParseReqLine(hp); | |
fc68f6b1 | 1898 | |
84cc2635 | 1899 | if (r == 0) { |
bf8fe701 | 1900 | debugs(33, 5, "Incomplete request, waiting for end of request line"); |
fc68f6b1 | 1901 | return NULL; |
7a2f978b | 1902 | } |
fc68f6b1 | 1903 | |
84cc2635 | 1904 | if (r == -1) { |
1905 | return parseHttpRequestAbort(conn, "error:invalid-request"); | |
1906 | } | |
fc68f6b1 | 1907 | |
84cc2635 | 1908 | /* Request line is valid here .. */ |
1909 | *http_ver = HttpVersion(hp->v_maj, hp->v_min); | |
62e76326 | 1910 | |
52512f28 | 1911 | /* This call scans the entire request, not just the headers */ |
84cc2635 | 1912 | if (hp->v_maj > 0) { |
a5baffba | 1913 | if ((req_sz = headersEnd(hp->buf, hp->bufsiz)) == 0) { |
bf8fe701 | 1914 | debugs(33, 5, "Incomplete request, waiting for end of headers"); |
62e76326 | 1915 | return NULL; |
1916 | } | |
3f38a55e | 1917 | } else { |
bf8fe701 | 1918 | debugs(33, 3, "parseHttpRequest: Missing HTTP identifier"); |
84cc2635 | 1919 | req_sz = HttpParserReqSz(hp); |
3f38a55e | 1920 | } |
1921 | ||
52512f28 | 1922 | /* We know the whole request is in hp->buf now */ |
1923 | ||
a5baffba | 1924 | assert(req_sz <= (size_t) hp->bufsiz); |
fc68f6b1 | 1925 | |
a5baffba | 1926 | /* Will the following be true with HTTP/0.9 requests? probably not .. */ |
1927 | /* So the rest of the code will need to deal with '0'-byte headers (ie, none, so don't try parsing em) */ | |
1928 | assert(req_sz > 0); | |
fc68f6b1 | 1929 | |
a5baffba | 1930 | hp->hdr_end = req_sz - 1; |
fc68f6b1 | 1931 | |
a5baffba | 1932 | hp->hdr_start = hp->req_end + 1; |
3f38a55e | 1933 | |
5b648f60 | 1934 | /* Enforce max_request_size */ |
5b648f60 | 1935 | if (req_sz >= Config.maxRequestHeaderSize) { |
bf8fe701 | 1936 | debugs(33, 5, "parseHttpRequest: Too large request"); |
5b648f60 | 1937 | return parseHttpRequestAbort(conn, "error:request-too-large"); |
1938 | } | |
1939 | ||
84cc2635 | 1940 | /* Set method_p */ |
60745f24 | 1941 | *method_p = HttpRequestMethod(&hp->buf[hp->m_start], &hp->buf[hp->m_end]+1); |
fc68f6b1 | 1942 | |
84cc2635 | 1943 | if (*method_p == METHOD_NONE) { |
fc68f6b1 | 1944 | /* XXX need a way to say "this many character length string" */ |
bf8fe701 | 1945 | debugs(33, 1, "clientParseRequestMethod: Unsupported method in request '" << hp->buf << "'"); |
1946 | ||
fc68f6b1 | 1947 | /* XXX where's the method set for this error? */ |
84cc2635 | 1948 | return parseHttpRequestAbort(conn, "error:unsupported-request-method"); |
3f38a55e | 1949 | } |
7a2f978b | 1950 | |
84cc2635 | 1951 | /* set url */ |
1952 | /* | |
1953 | * XXX this should eventually not use a malloc'ed buffer; the transformation code | |
1954 | * below needs to be modified to not expect a mutable nul-terminated string. | |
1955 | */ | |
1956 | url = (char *)xmalloc(hp->u_end - hp->u_start + 16); | |
fc68f6b1 | 1957 | |
84cc2635 | 1958 | memcpy(url, hp->buf + hp->u_start, hp->u_end - hp->u_start + 1); |
fc68f6b1 | 1959 | |
84cc2635 | 1960 | url[hp->u_end - hp->u_start + 1] = '\0'; |
62e76326 | 1961 | |
c68e9c6b | 1962 | /* |
1963 | * Process headers after request line | |
c8be6d7b | 1964 | * TODO: Use httpRequestParse here. |
c68e9c6b | 1965 | */ |
84cc2635 | 1966 | /* XXX this code should be modified to take a const char * later! */ |
1967 | req_hdr = (char *) hp->buf + hp->req_end + 1; | |
fc68f6b1 | 1968 | |
bf8fe701 | 1969 | debugs(33, 3, "parseHttpRequest: req_hdr = {" << req_hdr << "}"); |
fc68f6b1 | 1970 | |
52512f28 | 1971 | end = (char *) hp->buf + hp->hdr_end; |
fc68f6b1 | 1972 | |
bf8fe701 | 1973 | debugs(33, 3, "parseHttpRequest: end = {" << end << "}"); |
99edd1c3 | 1974 | |
3e83e8b2 AJ |
1975 | /* |
1976 | * Check that the headers don't have double-CR. | |
1977 | * NP: strnstr is required so we don't search any possible binary body blobs. | |
1978 | */ | |
cee08cbc | 1979 | if ( squid_strnstr(req_hdr, "\r\r\n", req_sz) ) { |
bf8fe701 | 1980 | debugs(33, 1, "WARNING: suspicious HTTP request contains double CR"); |
fc68f6b1 | 1981 | xfree(url); |
47ac2ebe | 1982 | return parseHttpRequestAbort(conn, "error:double-CR"); |
1983 | } | |
1984 | ||
bf8fe701 | 1985 | debugs(33, 3, "parseHttpRequest: prefix_sz = " << |
1986 | (int) HttpParserRequestLen(hp) << ", req_line_sz = " << | |
1987 | HttpParserReqSz(hp)); | |
62e76326 | 1988 | |
7a2f978b | 1989 | /* Ok, all headers are received */ |
a0355e95 | 1990 | http = new ClientHttpRequest(conn); |
62e76326 | 1991 | |
a5baffba | 1992 | http->req_sz = HttpParserRequestLen(hp); |
528b2c61 | 1993 | result = ClientSocketContextNew(http); |
c8be6d7b | 1994 | tempBuffer.data = result->reqbuf; |
1995 | tempBuffer.length = HTTP_REQBUF_SZ; | |
62e76326 | 1996 | |
0655fa4d | 1997 | ClientStreamData newServer = new clientReplyContext(http); |
0655fa4d | 1998 | ClientStreamData newClient = result; |
edce4d98 | 1999 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, |
0655fa4d | 2000 | clientReplyStatus, newServer, clientSocketRecipient, |
2001 | clientSocketDetach, newClient, tempBuffer); | |
62e76326 | 2002 | |
bf8fe701 | 2003 | debugs(33, 5, "parseHttpRequest: Request Header is\n" <<(hp->buf) + hp->hdr_start); |
3f38a55e | 2004 | |
ba9ebd0a | 2005 | #if THIS_VIOLATES_HTTP_SPECS_ON_URL_TRANSFORMATION |
62e76326 | 2006 | |
7a2f978b | 2007 | if ((t = strchr(url, '#'))) /* remove HTML anchors */ |
62e76326 | 2008 | *t = '\0'; |
2009 | ||
ba9ebd0a | 2010 | #endif |
7a2f978b | 2011 | |
3f38a55e | 2012 | /* Rewrite the URL in transparent or accelerator mode */ |
89272111 AJ |
2013 | /* NP: there are several cases to traverse here: |
2014 | * - standard mode (forward proxy) | |
2015 | * - transparent mode (TPROXY) | |
2016 | * - transparent mode with failures | |
2017 | * - intercept mode (NAT) | |
2018 | * - intercept mode with failures | |
2019 | * - accelerator mode (reverse proxy) | |
2020 | * - internal URL | |
2021 | * - mixed combos of the above with internal URL | |
2022 | */ | |
a46d2c0e | 2023 | if (conn->transparent()) { |
89272111 | 2024 | /* intercept or transparent mode, properly working with no failures */ |
891de1fe AJ |
2025 | http->flags.intercepted = conn->port->intercepted; |
2026 | http->flags.spoof_client_ip = conn->port->spoof_client_ip; | |
89272111 AJ |
2027 | prepareTransparentURL(conn, http, url, req_hdr); |
2028 | ||
2029 | } else if (conn->port->intercepted || conn->port->spoof_client_ip) { | |
2030 | /* transparent or intercept mode with failures */ | |
62e76326 | 2031 | prepareTransparentURL(conn, http, url, req_hdr); |
89272111 | 2032 | |
ae7ff0b8 | 2033 | } else if (conn->port->accel || conn->switchedToHttps()) { |
89272111 | 2034 | /* accelerator mode */ |
62e76326 | 2035 | prepareAcceleratedURL(conn, http, url, req_hdr); |
89272111 | 2036 | |
2f2749d7 | 2037 | } else if (internalCheck(url)) { |
89272111 | 2038 | /* internal URL mode */ |
2f2749d7 | 2039 | /* prepend our name & port */ |
2040 | http->uri = xstrdup(internalLocalUri(NULL, url)); | |
2f2749d7 | 2041 | http->flags.accel = 1; |
3f38a55e | 2042 | } |
2043 | ||
2044 | if (!http->uri) { | |
62e76326 | 2045 | /* No special rewrites have been applied above, use the |
2046 | * requested url. may be rewritten later, so make extra room */ | |
2047 | int url_sz = strlen(url) + Config.appendDomainLen + 5; | |
2048 | http->uri = (char *)xcalloc(url_sz, 1); | |
2049 | strcpy(http->uri, url); | |
3f38a55e | 2050 | } |
62e76326 | 2051 | |
c8be6d7b | 2052 | setLogUri(http, http->uri); |
bf8fe701 | 2053 | debugs(33, 5, "parseHttpRequest: Complete request received"); |
c4b7a5a9 | 2054 | result->flags.parsed_ok = 1; |
84cc2635 | 2055 | xfree(url); |
c8be6d7b | 2056 | return result; |
7a2f978b | 2057 | } |
2058 | ||
c8be6d7b | 2059 | int |
a46d2c0e | 2060 | ConnStateData::getAvailableBufferLength() const |
c8be6d7b | 2061 | { |
1a419b96 | 2062 | int result = in.allocatedSize - in.notYetUsed - 1; |
2063 | assert (result >= 0); | |
2064 | return result; | |
c8be6d7b | 2065 | } |
2066 | ||
2067 | void | |
a46d2c0e | 2068 | ConnStateData::makeSpaceAvailable() |
c8be6d7b | 2069 | { |
a46d2c0e | 2070 | if (getAvailableBufferLength() < 2) { |
2071 | in.buf = (char *)memReallocBuf(in.buf, in.allocatedSize * 2, &in.allocatedSize); | |
4a7a3d56 | 2072 | debugs(33, 2, "growing request buffer: notYetUsed=" << in.notYetUsed << " size=" << in.allocatedSize); |
c8be6d7b | 2073 | } |
2074 | } | |
2075 | ||
2076 | void | |
0655fa4d | 2077 | ConnStateData::addContextToQueue(ClientSocketContext * context) |
c8be6d7b | 2078 | { |
0655fa4d | 2079 | ClientSocketContext::Pointer *S; |
62e76326 | 2080 | |
0655fa4d | 2081 | for (S = (ClientSocketContext::Pointer *) & currentobject; S->getRaw(); |
3d0ac046 | 2082 | S = &(*S)->next); |
c8be6d7b | 2083 | *S = context; |
62e76326 | 2084 | |
0655fa4d | 2085 | ++nrequests; |
c8be6d7b | 2086 | } |
2087 | ||
2088 | int | |
0655fa4d | 2089 | ConnStateData::getConcurrentRequestCount() const |
c8be6d7b | 2090 | { |
2091 | int result = 0; | |
0655fa4d | 2092 | ClientSocketContext::Pointer *T; |
62e76326 | 2093 | |
0655fa4d | 2094 | for (T = (ClientSocketContext::Pointer *) ¤tobject; |
3d0ac046 | 2095 | T->getRaw(); T = &(*T)->next, ++result); |
c8be6d7b | 2096 | return result; |
2097 | } | |
2098 | ||
2099 | int | |
1cf238db | 2100 | ConnStateData::connReadWasError(comm_err_t flag, int size, int xerrno) |
c8be6d7b | 2101 | { |
c4b7a5a9 | 2102 | if (flag != COMM_OK) { |
1cf238db | 2103 | debugs(33, 2, "connReadWasError: FD " << fd << ": got flag " << flag); |
62e76326 | 2104 | return 1; |
c4b7a5a9 | 2105 | } |
62e76326 | 2106 | |
c8be6d7b | 2107 | if (size < 0) { |
f3400a93 | 2108 | if (!ignoreErrno(xerrno)) { |
1cf238db | 2109 | debugs(33, 2, "connReadWasError: FD " << fd << ": " << xstrerr(xerrno)); |
62e76326 | 2110 | return 1; |
1cf238db | 2111 | } else if (in.notYetUsed == 0) { |
2112 | debugs(33, 2, "connReadWasError: FD " << fd << ": no data to process (" << xstrerr(xerrno) << ")"); | |
62e76326 | 2113 | } |
c8be6d7b | 2114 | } |
62e76326 | 2115 | |
c8be6d7b | 2116 | return 0; |
2117 | } | |
2118 | ||
2119 | int | |
1cf238db | 2120 | ConnStateData::connFinishedWithConn(int size) |
c8be6d7b | 2121 | { |
2122 | if (size == 0) { | |
1cf238db | 2123 | if (getConcurrentRequestCount() == 0 && in.notYetUsed == 0) { |
62e76326 | 2124 | /* no current or pending requests */ |
1cf238db | 2125 | debugs(33, 4, "connFinishedWithConn: FD " << fd << " closed"); |
62e76326 | 2126 | return 1; |
2127 | } else if (!Config.onoff.half_closed_clients) { | |
2128 | /* admin doesn't want to support half-closed client sockets */ | |
1cf238db | 2129 | debugs(33, 3, "connFinishedWithConn: FD " << fd << " aborted (half_closed_clients disabled)"); |
62e76326 | 2130 | return 1; |
2131 | } | |
c8be6d7b | 2132 | } |
62e76326 | 2133 | |
c8be6d7b | 2134 | return 0; |
2135 | } | |
2136 | ||
2137 | void | |
3b299123 | 2138 | connNoteUseOfBuffer(ConnStateData* conn, size_t byteCount) |
c8be6d7b | 2139 | { |
2140 | assert(byteCount > 0 && byteCount <= conn->in.notYetUsed); | |
2141 | conn->in.notYetUsed -= byteCount; | |
d5fa7219 | 2142 | debugs(33, 5, HERE << "conn->in.notYetUsed = " << conn->in.notYetUsed); |
c8be6d7b | 2143 | /* |
9e008dda | 2144 | * If there is still data that will be used, |
c8be6d7b | 2145 | * move it to the beginning. |
2146 | */ | |
62e76326 | 2147 | |
c8be6d7b | 2148 | if (conn->in.notYetUsed > 0) |
62e76326 | 2149 | xmemmove(conn->in.buf, conn->in.buf + byteCount, |
2150 | conn->in.notYetUsed); | |
c8be6d7b | 2151 | } |
2152 | ||
2153 | int | |
1cf238db | 2154 | connKeepReadingIncompleteRequest(ConnStateData * conn) |
c8be6d7b | 2155 | { |
2156 | return conn->in.notYetUsed >= Config.maxRequestHeaderSize ? 0 : 1; | |
2157 | } | |
2158 | ||
2159 | void | |
1cf238db | 2160 | connCancelIncompleteRequests(ConnStateData * conn) |
c8be6d7b | 2161 | { |
528b2c61 | 2162 | ClientSocketContext *context = parseHttpRequestAbort(conn, "error:request-too-large"); |
2163 | clientStreamNode *node = context->getClientReplyContext(); | |
c8be6d7b | 2164 | assert(!connKeepReadingIncompleteRequest(conn)); |
4a7a3d56 | 2165 | debugs(33, 1, "Request header is too large (" << conn->in.notYetUsed << " bytes)"); |
2166 | debugs(33, 1, "Config 'request_header_max_size'= " << Config.maxRequestHeaderSize << " bytes."); | |
0655fa4d | 2167 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2168 | assert (repContext); | |
2169 | repContext->setReplyToError(ERR_TOO_BIG, | |
2170 | HTTP_REQUEST_ENTITY_TOO_LARGE, METHOD_NONE, NULL, | |
cc192b50 | 2171 | conn->peer, NULL, NULL, NULL); |
0655fa4d | 2172 | context->registerWithConn(); |
528b2c61 | 2173 | context->pullData(); |
c8be6d7b | 2174 | } |
2175 | ||
1cf238db | 2176 | void |
2177 | ConnStateData::clientMaybeReadData(int do_next_read) | |
7a2f978b | 2178 | { |
c4b7a5a9 | 2179 | if (do_next_read) { |
1cf238db | 2180 | flags.readMoreRequests = true; |
2181 | readSomeData(); | |
c4b7a5a9 | 2182 | } |
2183 | } | |
2184 | ||
1cf238db | 2185 | void |
2186 | ConnStateData::clientAfterReadingRequests(int do_next_read) | |
c4b7a5a9 | 2187 | { |
3b299123 | 2188 | /* |
2189 | * If (1) we are reading a message body, (2) and the connection | |
2190 | * is half-closed, and (3) we didn't get the entire HTTP request | |
2191 | * yet, then close this connection. | |
2192 | */ | |
62e76326 | 2193 | |
3b299123 | 2194 | if (fd_table[fd].flags.socket_eof) { |
1cf238db | 2195 | if ((int64_t)in.notYetUsed < bodySizeLeft()) { |
62e76326 | 2196 | /* Partial request received. Abort client connection! */ |
bf8fe701 | 2197 | debugs(33, 3, "clientAfterReadingRequests: FD " << fd << " aborted, partial request"); |
62e76326 | 2198 | comm_close(fd); |
2199 | return; | |
2200 | } | |
c4b7a5a9 | 2201 | } |
2202 | ||
1cf238db | 2203 | clientMaybeReadData (do_next_read); |
c4b7a5a9 | 2204 | } |
2205 | ||
c4b7a5a9 | 2206 | static void |
1cf238db | 2207 | clientProcessRequest(ConnStateData *conn, HttpParser *hp, ClientSocketContext *context, const HttpRequestMethod& method, HttpVersion http_ver) |
c4b7a5a9 | 2208 | { |
59a1efb2 | 2209 | ClientHttpRequest *http = context->http; |
190154cf | 2210 | HttpRequest *request = NULL; |
5f8252d2 | 2211 | bool notedUseOfBuffer = false; |
2212 | ||
c4b7a5a9 | 2213 | /* We have an initial client stream in place should it be needed */ |
2214 | /* setup our private context */ | |
0655fa4d | 2215 | context->registerWithConn(); |
c4b7a5a9 | 2216 | |
2217 | if (context->flags.parsed_ok == 0) { | |
62e76326 | 2218 | clientStreamNode *node = context->getClientReplyContext(); |
bf8fe701 | 2219 | debugs(33, 1, "clientProcessRequest: Invalid Request"); |
0655fa4d | 2220 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2221 | assert (repContext); | |
cc192b50 | 2222 | repContext->setReplyToError(ERR_INVALID_REQ, HTTP_BAD_REQUEST, method, NULL, conn->peer, NULL, conn->in.buf, NULL); |
62e76326 | 2223 | assert(context->http->out.offset == 0); |
2224 | context->pullData(); | |
48962ba8 | 2225 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2226 | goto finish; |
c4b7a5a9 | 2227 | } |
2228 | ||
c21ad0f5 | 2229 | if ((request = HttpRequest::CreateFromUrlAndMethod(http->uri, method)) == NULL) { |
62e76326 | 2230 | clientStreamNode *node = context->getClientReplyContext(); |
bf8fe701 | 2231 | debugs(33, 5, "Invalid URL: " << http->uri); |
0655fa4d | 2232 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2233 | assert (repContext); | |
cc192b50 | 2234 | repContext->setReplyToError(ERR_INVALID_URL, HTTP_BAD_REQUEST, method, http->uri, conn->peer, NULL, NULL, NULL); |
62e76326 | 2235 | assert(context->http->out.offset == 0); |
2236 | context->pullData(); | |
48962ba8 | 2237 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2238 | goto finish; |
62e76326 | 2239 | } |
c4b7a5a9 | 2240 | |
528b2c61 | 2241 | /* compile headers */ |
2242 | /* we should skip request line! */ | |
666f514b | 2243 | /* XXX should actually know the damned buffer size here */ |
a5baffba | 2244 | if (!request->parseHeader(HttpParserHdrBuf(hp), HttpParserHdrSz(hp))) { |
47ac2ebe | 2245 | clientStreamNode *node = context->getClientReplyContext(); |
bf8fe701 | 2246 | debugs(33, 5, "Failed to parse request headers:\n" << HttpParserHdrBuf(hp)); |
47ac2ebe | 2247 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2248 | assert (repContext); | |
cc192b50 | 2249 | repContext->setReplyToError(ERR_INVALID_URL, HTTP_BAD_REQUEST, method, http->uri, conn->peer, NULL, NULL, NULL); |
47ac2ebe | 2250 | assert(context->http->out.offset == 0); |
2251 | context->pullData(); | |
48962ba8 | 2252 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2253 | goto finish; |
47ac2ebe | 2254 | } |
c4b7a5a9 | 2255 | |
2256 | request->flags.accelerated = http->flags.accel; | |
2ad20b4f AJ |
2257 | |
2258 | /** \par | |
2259 | * If transparent or interception mode is working clone the transparent and interception flags | |
2260 | * from the port settings to the request. | |
2261 | */ | |
85944c1c | 2262 | if (IpInterceptor.InterceptActive()) { |
2ad20b4f AJ |
2263 | request->flags.intercepted = http->flags.intercepted; |
2264 | } | |
85944c1c | 2265 | if (IpInterceptor.TransparentActive()) { |
f165d2fb | 2266 | request->flags.spoof_client_ip = conn->port->spoof_client_ip; |
2ad20b4f | 2267 | } |
fc68f6b1 | 2268 | |
30abd221 | 2269 | if (internalCheck(request->urlpath.buf())) { |
cc192b50 | 2270 | if (internalHostnameIs(request->GetHost()) && |
f024c970 | 2271 | request->port == getMyPort()) { |
2272 | http->flags.internal = 1; | |
30abd221 | 2273 | } else if (Config.onoff.global_internal_static && internalStaticCheck(request->urlpath.buf())) { |
cc192b50 | 2274 | request->SetHost(internalHostname()); |
f024c970 | 2275 | request->port = getMyPort(); |
2276 | http->flags.internal = 1; | |
62e76326 | 2277 | } |
f024c970 | 2278 | } |
e72a0ec0 | 2279 | |
f024c970 | 2280 | if (http->flags.internal) { |
2281 | request->protocol = PROTO_HTTP; | |
2282 | request->login[0] = '\0'; | |
c4b7a5a9 | 2283 | } |
2284 | ||
c4b7a5a9 | 2285 | request->flags.internal = http->flags.internal; |
2286 | setLogUri (http, urlCanonicalClean(request)); | |
cc192b50 | 2287 | request->client_addr = conn->peer; |
3d674977 AJ |
2288 | #if FOLLOW_X_FORWARDED_FOR |
2289 | request->indirect_client_addr = conn->peer; | |
2290 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
cc192b50 | 2291 | request->my_addr = conn->me; |
8ae66e43 | 2292 | request->http_ver = http_ver; |
62e76326 | 2293 | |
c4b7a5a9 | 2294 | if (!urlCheckRequest(request) || |
a9925b40 | 2295 | request->header.has(HDR_TRANSFER_ENCODING)) { |
62e76326 | 2296 | clientStreamNode *node = context->getClientReplyContext(); |
0655fa4d | 2297 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2298 | assert (repContext); | |
2299 | repContext->setReplyToError(ERR_UNSUP_REQ, | |
2300 | HTTP_NOT_IMPLEMENTED, request->method, NULL, | |
cc192b50 | 2301 | conn->peer, request, NULL, NULL); |
62e76326 | 2302 | assert(context->http->out.offset == 0); |
2303 | context->pullData(); | |
48962ba8 | 2304 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2305 | goto finish; |
c4b7a5a9 | 2306 | } |
2307 | ||
2308 | ||
2309 | if (!clientIsContentLengthValid(request)) { | |
62e76326 | 2310 | clientStreamNode *node = context->getClientReplyContext(); |
0655fa4d | 2311 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2312 | assert (repContext); | |
2313 | repContext->setReplyToError(ERR_INVALID_REQ, | |
2314 | HTTP_LENGTH_REQUIRED, request->method, NULL, | |
cc192b50 | 2315 | conn->peer, request, NULL, NULL); |
62e76326 | 2316 | assert(context->http->out.offset == 0); |
2317 | context->pullData(); | |
48962ba8 | 2318 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2319 | goto finish; |
c4b7a5a9 | 2320 | } |
2321 | ||
6dd9f4bd | 2322 | http->request = HTTPMSGLOCK(request); |
c4b7a5a9 | 2323 | clientSetKeepaliveFlag(http); |
62e76326 | 2324 | |
b66e0e86 | 2325 | /* If this is a CONNECT, don't schedule a read - ssl.c will handle it */ |
2326 | if (http->request->method == METHOD_CONNECT) | |
2327 | context->mayUseConnection(true); | |
fc68f6b1 | 2328 | |
b66e0e86 | 2329 | /* Do we expect a request-body? */ |
2330 | if (!context->mayUseConnection() && request->content_length > 0) { | |
5f8252d2 | 2331 | request->body_pipe = conn->expectRequestBody(request->content_length); |
2332 | ||
2333 | // consume header early so that body pipe gets just the body | |
1cf238db | 2334 | connNoteUseOfBuffer(conn, http->req_sz); |
5f8252d2 | 2335 | notedUseOfBuffer = true; |
2336 | ||
10b06767 | 2337 | conn->handleRequestBodyData(); // may comm_close and stop producing |
3b299123 | 2338 | |
62e76326 | 2339 | /* Is it too large? */ |
2340 | ||
2341 | if (!clientIsRequestBodyValid(request->content_length) || | |
2342 | clientIsRequestBodyTooLargeForPolicy(request->content_length)) { | |
2343 | clientStreamNode *node = context->getClientReplyContext(); | |
0655fa4d | 2344 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2345 | assert (repContext); | |
2346 | repContext->setReplyToError(ERR_TOO_BIG, | |
2347 | HTTP_REQUEST_ENTITY_TOO_LARGE, METHOD_NONE, NULL, | |
cc192b50 | 2348 | conn->peer, http->request, NULL, NULL); |
62e76326 | 2349 | assert(context->http->out.offset == 0); |
2350 | context->pullData(); | |
5f8252d2 | 2351 | goto finish; |
62e76326 | 2352 | } |
2353 | ||
10b06767 AJ |
2354 | if (!request->body_pipe->productionEnded()) |
2355 | conn->readSomeData(); | |
2356 | ||
2357 | context->mayUseConnection(!request->body_pipe->productionEnded()); | |
c4b7a5a9 | 2358 | } |
2359 | ||
de31d06f | 2360 | http->calloutContext = new ClientRequestContext(http); |
2361 | ||
2362 | http->doCallouts(); | |
9e008dda | 2363 | |
4c29340e | 2364 | finish: |
5f8252d2 | 2365 | if (!notedUseOfBuffer) |
1cf238db | 2366 | connNoteUseOfBuffer(conn, http->req_sz); |
52c2c8a8 | 2367 | |
2368 | /* | |
2369 | * DPW 2007-05-18 | |
2370 | * Moved the TCP_RESET feature from clientReplyContext::sendMoreData | |
2371 | * to here because calling comm_reset_close() causes http to | |
2372 | * be freed and the above connNoteUseOfBuffer() would hit an | |
2373 | * assertion, not to mention that we were accessing freed memory. | |
2374 | */ | |
2375 | if (http->request->flags.resetTCP() && conn->fd > -1) { | |
9e008dda AJ |
2376 | debugs(33, 3, HERE << "Sending TCP RST on FD " << conn->fd); |
2377 | conn->flags.readMoreRequests = false; | |
2378 | comm_reset_close(conn->fd); | |
2379 | return; | |
52c2c8a8 | 2380 | } |
c4b7a5a9 | 2381 | } |
2382 | ||
2383 | static void | |
1cf238db | 2384 | connStripBufferWhitespace (ConnStateData * conn) |
c4b7a5a9 | 2385 | { |
2386 | while (conn->in.notYetUsed > 0 && xisspace(conn->in.buf[0])) { | |
62e76326 | 2387 | xmemmove(conn->in.buf, conn->in.buf + 1, conn->in.notYetUsed - 1); |
2388 | --conn->in.notYetUsed; | |
c4b7a5a9 | 2389 | } |
2390 | } | |
2391 | ||
2392 | static int | |
1cf238db | 2393 | connOkToAddRequest(ConnStateData * conn) |
c4b7a5a9 | 2394 | { |
0655fa4d | 2395 | int result = conn->getConcurrentRequestCount() < (Config.onoff.pipeline_prefetch ? 2 : 1); |
62e76326 | 2396 | |
c4b7a5a9 | 2397 | if (!result) { |
bf8fe701 | 2398 | debugs(33, 3, "connOkToAddRequest: FD " << conn->fd << |
2399 | " max concurrent requests reached"); | |
2400 | debugs(33, 5, "connOkToAddRequest: FD " << conn->fd << | |
2401 | " defering new request until one is done"); | |
c4b7a5a9 | 2402 | } |
62e76326 | 2403 | |
c4b7a5a9 | 2404 | return result; |
2405 | } | |
2406 | ||
63be0a78 | 2407 | /** |
3b299123 | 2408 | * bodySizeLeft |
2409 | * | |
2410 | * Report on the number of bytes of body content that we | |
2411 | * know are yet to be read on this connection. | |
2412 | */ | |
3e62bd58 | 2413 | int64_t |
3b299123 | 2414 | ConnStateData::bodySizeLeft() |
2415 | { | |
5f8252d2 | 2416 | // XXX: this logic will not work for chunked requests with unknown sizes |
fc68f6b1 | 2417 | |
5f8252d2 | 2418 | if (bodyPipe != NULL) |
2419 | return bodyPipe->unproducedSize(); | |
3b299123 | 2420 | |
2421 | return 0; | |
2422 | } | |
2423 | ||
63be0a78 | 2424 | /** |
f900210a | 2425 | * Attempt to parse one or more requests from the input buffer. |
2426 | * If a request is successfully parsed, even if the next request | |
2427 | * is only partially parsed, it will return TRUE. | |
2428 | * do_next_read is updated to indicate whether a read should be | |
2429 | * scheduled. | |
2430 | */ | |
2431 | static bool | |
1cf238db | 2432 | clientParseRequest(ConnStateData * conn, bool &do_next_read) |
f900210a | 2433 | { |
60745f24 | 2434 | HttpRequestMethod method; |
f900210a | 2435 | ClientSocketContext *context; |
2436 | bool parsed_req = false; | |
8ae66e43 | 2437 | HttpVersion http_ver; |
a5baffba | 2438 | HttpParser hp; |
f900210a | 2439 | |
bf8fe701 | 2440 | debugs(33, 5, "clientParseRequest: FD " << conn->fd << ": attempting to parse"); |
f900210a | 2441 | |
3b299123 | 2442 | while (conn->in.notYetUsed > 0 && conn->bodySizeLeft() == 0) { |
f900210a | 2443 | connStripBufferWhitespace (conn); |
2444 | ||
fc68f6b1 | 2445 | /* Don't try to parse if the buffer is empty */ |
2446 | ||
2447 | if (conn->in.notYetUsed == 0) | |
2448 | break; | |
4681057e | 2449 | |
f900210a | 2450 | /* Limit the number of concurrent requests to 2 */ |
2451 | ||
2452 | if (!connOkToAddRequest(conn)) { | |
2453 | break; | |
2454 | } | |
2455 | ||
2456 | /* Should not be needed anymore */ | |
2457 | /* Terminate the string */ | |
2458 | conn->in.buf[conn->in.notYetUsed] = '\0'; | |
2459 | ||
fc68f6b1 | 2460 | /* Begin the parsing */ |
2461 | HttpParserInit(&hp, conn->in.buf, conn->in.notYetUsed); | |
a5baffba | 2462 | |
f900210a | 2463 | /* Process request */ |
fc68f6b1 | 2464 | PROF_start(parseHttpRequest); |
2465 | ||
a5baffba | 2466 | context = parseHttpRequest(conn, &hp, &method, &http_ver); |
fc68f6b1 | 2467 | |
2468 | PROF_stop(parseHttpRequest); | |
f900210a | 2469 | |
2470 | /* partial or incomplete request */ | |
2471 | if (!context) { | |
f900210a | 2472 | |
2473 | if (!connKeepReadingIncompleteRequest(conn)) | |
2474 | connCancelIncompleteRequests(conn); | |
2475 | ||
2476 | break; | |
2477 | } | |
2478 | ||
2479 | /* status -1 or 1 */ | |
2480 | if (context) { | |
bf8fe701 | 2481 | debugs(33, 5, "clientParseRequest: FD " << conn->fd << ": parsed a request"); |
f900210a | 2482 | commSetTimeout(conn->fd, Config.Timeout.lifetime, clientLifetimeTimeout, |
2483 | context->http); | |
2484 | ||
a5baffba | 2485 | clientProcessRequest(conn, &hp, context, method, http_ver); |
f900210a | 2486 | |
f900210a | 2487 | parsed_req = true; |
2488 | ||
2489 | if (context->mayUseConnection()) { | |
bf8fe701 | 2490 | debugs(33, 3, "clientParseRequest: Not reading, as this request may need the connection"); |
f900210a | 2491 | do_next_read = 0; |
2492 | break; | |
2493 | } | |
2494 | ||
2495 | if (!conn->flags.readMoreRequests) { | |
48962ba8 | 2496 | conn->flags.readMoreRequests = true; |
f900210a | 2497 | break; |
2498 | } | |
2499 | ||
3b299123 | 2500 | continue; /* while offset > 0 && conn->bodySizeLeft() == 0 */ |
f900210a | 2501 | } |
3b299123 | 2502 | } /* while offset > 0 && conn->bodySizeLeft() == 0 */ |
fc68f6b1 | 2503 | |
a5baffba | 2504 | /* XXX where to 'finish' the parsing pass? */ |
f900210a | 2505 | |
2506 | return parsed_req; | |
2507 | } | |
2508 | ||
1cf238db | 2509 | void |
2510 | ConnStateData::clientReadRequest(const CommIoCbParams &io) | |
c4b7a5a9 | 2511 | { |
1cf238db | 2512 | debugs(33,5,HERE << "clientReadRequest FD " << io.fd << " size " << io.size); |
2513 | reading(false); | |
a46d2c0e | 2514 | bool do_next_read = 1; /* the default _is_ to read data! - adrian */ |
c4b7a5a9 | 2515 | |
1cf238db | 2516 | assert (io.fd == fd); |
c4b7a5a9 | 2517 | |
2518 | /* Bail out quickly on COMM_ERR_CLOSING - close handlers will tidy up */ | |
62e76326 | 2519 | |
1cf238db | 2520 | if (io.flag == COMM_ERR_CLOSING) { |
cc192b50 | 2521 | debugs(33,5, HERE << " FD " << fd << " closing Bailout."); |
c4b7a5a9 | 2522 | return; |
2523 | } | |
62e76326 | 2524 | |
44db45e8 | 2525 | /* |
2526 | * Don't reset the timeout value here. The timeout value will be | |
2527 | * set to Config.Timeout.request by httpAccept() and | |
2528 | * clientWriteComplete(), and should apply to the request as a | |
2529 | * whole, not individual read() calls. Plus, it breaks our | |
2530 | * lame half-close detection | |
2531 | */ | |
1cf238db | 2532 | if (connReadWasError(io.flag, io.size, io.xerrno)) { |
62e76326 | 2533 | comm_close(fd); |
2534 | return; | |
7a2f978b | 2535 | } |
c4b7a5a9 | 2536 | |
1cf238db | 2537 | if (io.flag == COMM_OK) { |
2538 | if (io.size > 0) { | |
2539 | kb_incr(&statCounter.client_http.kbytes_in, io.size); | |
3b299123 | 2540 | |
1cf238db | 2541 | handleReadData(io.buf, io.size); |
95ac44e6 | 2542 | |
9e008dda AJ |
2543 | /* The above may close the connection under our feets */ |
2544 | if (!isOpen()) | |
2545 | return; | |
a31a78fb | 2546 | |
1cf238db | 2547 | } else if (io.size == 0) { |
bf8fe701 | 2548 | debugs(33, 5, "clientReadRequest: FD " << fd << " closed?"); |
62e76326 | 2549 | |
1cf238db | 2550 | if (connFinishedWithConn(io.size)) { |
62e76326 | 2551 | comm_close(fd); |
2552 | return; | |
2553 | } | |
2554 | ||
2555 | /* It might be half-closed, we can't tell */ | |
2556 | fd_table[fd].flags.socket_eof = 1; | |
2557 | ||
a46d2c0e | 2558 | commMarkHalfClosed(fd); |
2559 | ||
2560 | do_next_read = 0; | |
62e76326 | 2561 | |
2562 | fd_note(fd, "half-closed"); | |
2563 | ||
2564 | /* There is one more close check at the end, to detect aborted | |
2565 | * (partial) requests. At this point we can't tell if the request | |
2566 | * is partial. | |
2567 | */ | |
2568 | /* Continue to process previously read data */ | |
2569 | } | |
c4b7a5a9 | 2570 | } |
2571 | ||
94439e4e | 2572 | /* Process next request */ |
1cf238db | 2573 | if (getConcurrentRequestCount() == 0) |
2574 | fd_note(fd, "Reading next request"); | |
c8be6d7b | 2575 | |
1cf238db | 2576 | if (! clientParseRequest(this, do_next_read)) { |
9e008dda AJ |
2577 | if (!isOpen()) |
2578 | return; | |
f900210a | 2579 | /* |
2580 | * If the client here is half closed and we failed | |
2581 | * to parse a request, close the connection. | |
2582 | * The above check with connFinishedWithConn() only | |
2583 | * succeeds _if_ the buffer is empty which it won't | |
2584 | * be if we have an incomplete request. | |
6e1d409c | 2585 | * XXX: This duplicates ClientSocketContext::keepaliveNextRequest |
f900210a | 2586 | */ |
1cf238db | 2587 | if (getConcurrentRequestCount() == 0 && commIsHalfClosed(fd)) { |
bf8fe701 | 2588 | debugs(33, 5, "clientReadRequest: FD " << fd << ": half-closed connection, no completed request parsed, connection closing."); |
f900210a | 2589 | comm_close(fd); |
ee6f0213 | 2590 | return; |
62e76326 | 2591 | } |
f900210a | 2592 | } |
ee6f0213 | 2593 | |
1cf238db | 2594 | if (!isOpen()) |
2e216b1d | 2595 | return; |
2596 | ||
1cf238db | 2597 | clientAfterReadingRequests(do_next_read); |
94439e4e | 2598 | } |
2599 | ||
63be0a78 | 2600 | /** |
2601 | * called when new request data has been read from the socket | |
2602 | */ | |
5f8252d2 | 2603 | void |
2604 | ConnStateData::handleReadData(char *buf, size_t size) | |
94439e4e | 2605 | { |
5f8252d2 | 2606 | char *current_buf = in.addressToReadInto(); |
62e76326 | 2607 | |
5f8252d2 | 2608 | if (buf != current_buf) |
2609 | xmemmove(current_buf, buf, size); | |
3b299123 | 2610 | |
5f8252d2 | 2611 | in.notYetUsed += size; |
fc68f6b1 | 2612 | |
5f8252d2 | 2613 | in.buf[in.notYetUsed] = '\0'; /* Terminate the string */ |
3b299123 | 2614 | |
5f8252d2 | 2615 | // if we are reading a body, stuff data into the body pipe |
2616 | if (bodyPipe != NULL) | |
2617 | handleRequestBodyData(); | |
94439e4e | 2618 | } |
2619 | ||
63be0a78 | 2620 | /** |
2621 | * called when new request body data has been buffered in in.buf | |
2622 | * may close the connection if we were closing and piped everything out | |
2623 | */ | |
5f8252d2 | 2624 | void |
2625 | ConnStateData::handleRequestBodyData() | |
94439e4e | 2626 | { |
5f8252d2 | 2627 | assert(bodyPipe != NULL); |
2628 | ||
2629 | if (const size_t putSize = bodyPipe->putMoreData(in.buf, in.notYetUsed)) | |
2630 | connNoteUseOfBuffer(this, putSize); | |
2631 | ||
2632 | if (!bodyPipe->mayNeedMoreData()) { | |
2633 | // BodyPipe will clear us automagically when we produced everything | |
2634 | bodyPipe = NULL; | |
2635 | ||
2636 | debugs(33,5, HERE << "produced entire request body for FD " << fd); | |
62e76326 | 2637 | |
5f8252d2 | 2638 | if (closing()) { |
2639 | /* we've finished reading like good clients, | |
2640 | * now do the close that initiateClose initiated. | |
2641 | * | |
2642 | * XXX: do we have to close? why not check keepalive et. | |
2643 | * | |
2644 | * XXX: To support chunked requests safely, we need to handle | |
2645 | * the case of an endless request. This if-statement does not, | |
2646 | * because mayNeedMoreData is true if request size is not known. | |
2647 | */ | |
2648 | comm_close(fd); | |
2649 | } | |
94439e4e | 2650 | } |
5f8252d2 | 2651 | } |
55e44db9 | 2652 | |
5f8252d2 | 2653 | void |
1cf238db | 2654 | ConnStateData::noteMoreBodySpaceAvailable(BodyPipe::Pointer ) |
5f8252d2 | 2655 | { |
2656 | handleRequestBodyData(); | |
2657 | } | |
2658 | ||
2659 | void | |
1cf238db | 2660 | ConnStateData::noteBodyConsumerAborted(BodyPipe::Pointer ) |
5f8252d2 | 2661 | { |
2662 | if (!closing()) | |
2663 | startClosing("body consumer aborted"); | |
94439e4e | 2664 | } |
2665 | ||
63be0a78 | 2666 | /** general lifetime handler for HTTP requests */ |
1cf238db | 2667 | void |
2668 | ConnStateData::requestTimeout(const CommTimeoutCbParams &io) | |
7a2f978b | 2669 | { |
ad63ceea | 2670 | #if THIS_CONFUSES_PERSISTENT_CONNECTION_AWARE_BROWSERS_AND_USERS |
1cf238db | 2671 | debugs(33, 3, "requestTimeout: FD " << io.fd << ": lifetime is expired."); |
62e76326 | 2672 | |
1cf238db | 2673 | if (COMMIO_FD_WRITECB(io.fd)->active) { |
dec5db5d | 2674 | /* FIXME: If this code is reinstated, check the conn counters, |
2675 | * not the fd table state | |
2676 | */ | |
62e76326 | 2677 | /* |
2678 | * Some data has been sent to the client, just close the FD | |
2679 | */ | |
1cf238db | 2680 | comm_close(io.fd); |
2681 | } else if (nrequests) { | |
62e76326 | 2682 | /* |
2683 | * assume its a persistent connection; just close it | |
2684 | */ | |
1cf238db | 2685 | comm_close(io.fd); |
7a2f978b | 2686 | } else { |
62e76326 | 2687 | /* |
2688 | * Generate an error | |
2689 | */ | |
59a1efb2 | 2690 | ClientHttpRequest **H; |
62e76326 | 2691 | clientStreamNode *node; |
59a1efb2 | 2692 | ClientHttpRequest *http = |
1cf238db | 2693 | parseHttpRequestAbort(this, "error:Connection%20lifetime%20expired"); |
62e76326 | 2694 | node = http->client_stream.tail->prev->data; |
0655fa4d | 2695 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2696 | assert (repContext); | |
2697 | repContext->setReplyToError(ERR_LIFETIME_EXP, | |
1cf238db | 2698 | HTTP_REQUEST_TIMEOUT, METHOD_NONE, "N/A", &peer.sin_addr, |
0655fa4d | 2699 | NULL, NULL, NULL); |
62e76326 | 2700 | /* No requests can be outstanded */ |
1cf238db | 2701 | assert(chr == NULL); |
62e76326 | 2702 | /* add to the client request queue */ |
2703 | ||
3d0ac046 | 2704 | for (H = &chr; *H; H = &(*H)->next); |
62e76326 | 2705 | *H = http; |
2706 | ||
2707 | clientStreamRead(http->client_stream.tail->data, http, 0, | |
2708 | HTTP_REQBUF_SZ, context->reqbuf); | |
2709 | ||
2710 | /* | |
2711 | * if we don't close() here, we still need a timeout handler! | |
2712 | */ | |
9e008dda AJ |
2713 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; |
2714 | AsyncCall::Pointer timeoutCall = asyncCall(33, 5, "ConnStateData::requestTimeout", | |
2715 | TimeoutDialer(this,&ConnStateData::requestTimeout)); | |
2716 | commSetTimeout(io.fd, 30, timeoutCall); | |
62e76326 | 2717 | |
2718 | /* | |
2719 | * Aha, but we don't want a read handler! | |
2720 | */ | |
1cf238db | 2721 | commSetSelect(io.fd, COMM_SELECT_READ, NULL, NULL, 0); |
7a2f978b | 2722 | } |
62e76326 | 2723 | |
af57a2e3 | 2724 | #else |
2725 | /* | |
62e76326 | 2726 | * Just close the connection to not confuse browsers |
2727 | * using persistent connections. Some browsers opens | |
2728 | * an connection and then does not use it until much | |
2729 | * later (presumeably because the request triggering | |
2730 | * the open has already been completed on another | |
2731 | * connection) | |
2732 | */ | |
1cf238db | 2733 | debugs(33, 3, "requestTimeout: FD " << io.fd << ": lifetime is expired."); |
62e76326 | 2734 | |
1cf238db | 2735 | comm_close(io.fd); |
62e76326 | 2736 | |
af57a2e3 | 2737 | #endif |
7a2f978b | 2738 | } |
2739 | ||
1cf238db | 2740 | |
2741 | ||
b5c39993 | 2742 | static void |
2743 | clientLifetimeTimeout(int fd, void *data) | |
2744 | { | |
59a1efb2 | 2745 | ClientHttpRequest *http = (ClientHttpRequest *)data; |
cc192b50 | 2746 | debugs(33, 1, "WARNING: Closing client " << http->getConn()->peer << " connection due to lifetime timeout"); |
bf8fe701 | 2747 | debugs(33, 1, "\t" << http->uri); |
b5c39993 | 2748 | comm_close(fd); |
2749 | } | |
2750 | ||
a46d2c0e | 2751 | static bool |
2752 | okToAccept() | |
7a2f978b | 2753 | { |
3d6629c6 | 2754 | static time_t last_warn = 0; |
62e76326 | 2755 | |
3d6629c6 | 2756 | if (fdNFree() >= RESERVED_FD) |
a46d2c0e | 2757 | return true; |
62e76326 | 2758 | |
3d6629c6 | 2759 | if (last_warn + 15 < squid_curtime) { |
aefecdd3 | 2760 | debugs(33, 0, HERE << "WARNING! Your cache is running out of filedescriptors"); |
62e76326 | 2761 | last_warn = squid_curtime; |
3d6629c6 | 2762 | } |
62e76326 | 2763 | |
a46d2c0e | 2764 | return false; |
7a2f978b | 2765 | } |
2766 | ||
c8be6d7b | 2767 | ConnStateData * |
cc192b50 | 2768 | connStateCreate(const IPAddress &peer, const IPAddress &me, int fd, http_port_list *port) |
c8be6d7b | 2769 | { |
a46d2c0e | 2770 | ConnStateData *result = new ConnStateData; |
2ad20b4f | 2771 | |
cc192b50 | 2772 | result->peer = peer; |
2773 | result->log_addr = peer; | |
2774 | result->log_addr.ApplyMask(Config.Addrs.client_netmask.GetCIDR()); | |
2775 | result->me = me; | |
c8be6d7b | 2776 | result->fd = fd; |
e6ccf245 | 2777 | result->in.buf = (char *)memAllocBuf(CLIENT_REQ_BUF_SZ, &result->in.allocatedSize); |
3f38a55e | 2778 | result->port = cbdataReference(port); |
62e76326 | 2779 | |
9e008dda | 2780 | if (port->intercepted || port->spoof_client_ip) { |
482a5c64 | 2781 | IPAddress client, dst; |
62e76326 | 2782 | |
85944c1c | 2783 | if (IpInterceptor.NatLookup(fd, me, peer, client, dst) == 0) { |
482a5c64 AJ |
2784 | result->me = client; |
2785 | result->peer = dst; | |
a46d2c0e | 2786 | result->transparent(true); |
62e76326 | 2787 | } |
3f38a55e | 2788 | } |
62e76326 | 2789 | |
5529ca8a | 2790 | if (port->disable_pmtu_discovery != DISABLE_PMTU_OFF && |
9e008dda | 2791 | (result->transparent() || port->disable_pmtu_discovery == DISABLE_PMTU_ALWAYS)) { |
5529ca8a | 2792 | #if defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DONT) |
2793 | int i = IP_PMTUDISC_DONT; | |
2794 | setsockopt(fd, SOL_IP, IP_MTU_DISCOVER, &i, sizeof i); | |
2795 | ||
2796 | #else | |
2797 | ||
2798 | static int reported = 0; | |
2799 | ||
2800 | if (!reported) { | |
bf8fe701 | 2801 | debugs(33, 1, "Notice: httpd_accel_no_pmtu_disc not supported on your platform"); |
5529ca8a | 2802 | reported = 1; |
2803 | } | |
2804 | ||
2805 | #endif | |
2806 | ||
2807 | } | |
2808 | ||
48962ba8 | 2809 | result->flags.readMoreRequests = true; |
c8be6d7b | 2810 | return result; |
2811 | } | |
2812 | ||
63be0a78 | 2813 | /** Handle a new connection on HTTP socket. */ |
7a2f978b | 2814 | void |
ee0989f2 | 2815 | httpAccept(int sock, int newfd, ConnectionDetail *details, |
62e76326 | 2816 | comm_err_t flag, int xerrno, void *data) |
7a2f978b | 2817 | { |
3f38a55e | 2818 | http_port_list *s = (http_port_list *)data; |
7a2f978b | 2819 | ConnStateData *connState = NULL; |
02d1422b | 2820 | |
2821 | if (flag == COMM_ERR_CLOSING) { | |
2822 | return; | |
2823 | } | |
2824 | ||
a46d2c0e | 2825 | if (!okToAccept()) |
2826 | AcceptLimiter::Instance().defer (sock, httpAccept, data); | |
2827 | else | |
2828 | /* kick off another one for later */ | |
2829 | comm_accept(sock, httpAccept, data); | |
c4b7a5a9 | 2830 | |
62e76326 | 2831 | if (flag != COMM_OK) { |
bf8fe701 | 2832 | debugs(33, 1, "httpAccept: FD " << sock << ": accept failure: " << xstrerr(xerrno)); |
62e76326 | 2833 | return; |
2834 | } | |
2835 | ||
bf8fe701 | 2836 | debugs(33, 4, "httpAccept: FD " << newfd << ": accepted"); |
62e76326 | 2837 | fd_note(newfd, "client http connect"); |
1cf238db | 2838 | connState = connStateCreate(&details->peer, &details->me, newfd, s); |
2839 | ||
2840 | typedef CommCbMemFunT<ConnStateData, CommCloseCbParams> Dialer; | |
2841 | AsyncCall::Pointer call = asyncCall(33, 5, "ConnStateData::connStateClosed", | |
9e008dda | 2842 | Dialer(connState, &ConnStateData::connStateClosed)); |
1cf238db | 2843 | comm_add_close_handler(newfd, call); |
62e76326 | 2844 | |
2845 | if (Config.onoff.log_fqdn) | |
cc192b50 | 2846 | fqdncache_gethostbyaddr(details->peer, FQDN_LOOKUP_IF_MISS); |
62e76326 | 2847 | |
9e008dda AJ |
2848 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; |
2849 | AsyncCall::Pointer timeoutCall = asyncCall(33, 5, "ConnStateData::requestTimeout", | |
2850 | TimeoutDialer(connState,&ConnStateData::requestTimeout)); | |
2851 | commSetTimeout(newfd, Config.Timeout.read, timeoutCall); | |
62e76326 | 2852 | |
3898f57f | 2853 | #if USE_IDENT |
62e76326 | 2854 | |
2855 | ACLChecklist identChecklist; | |
2856 | ||
cc192b50 | 2857 | identChecklist.src_addr = details->peer; |
62e76326 | 2858 | |
cc192b50 | 2859 | identChecklist.my_addr = details->me; |
62e76326 | 2860 | |
506768d9 | 2861 | identChecklist.accessList = cbdataReference(Config.accessList.identLookup); |
b448c119 | 2862 | |
108d65b2 | 2863 | /* cbdataReferenceDone() happens in either fastCheck() or ~ACLCheckList */ |
2864 | ||
b448c119 | 2865 | if (identChecklist.fastCheck()) |
cc192b50 | 2866 | identStart(details->me, details->peer, clientIdentDone, connState); |
b448c119 | 2867 | |
3898f57f | 2868 | #endif |
62e76326 | 2869 | |
b2130d58 | 2870 | if (s->tcp_keepalive.enabled) { |
9e008dda | 2871 | commSetTcpKeepalive(newfd, s->tcp_keepalive.idle, s->tcp_keepalive.interval, s->tcp_keepalive.timeout); |
b2130d58 | 2872 | } |
2873 | ||
a46d2c0e | 2874 | connState->readSomeData(); |
62e76326 | 2875 | |
cc192b50 | 2876 | clientdbEstablished(details->peer, 1); |
62e76326 | 2877 | |
2878 | incoming_sockets_accepted++; | |
7a2f978b | 2879 | } |
2880 | ||
1f7c9178 | 2881 | #if USE_SSL |
2882 | ||
63be0a78 | 2883 | /** Create SSL connection structure and update fd_table */ |
ae7ff0b8 | 2884 | static SSL * |
2885 | httpsCreate(int newfd, ConnectionDetail *details, SSL_CTX *sslContext) | |
2886 | { | |
2887 | SSL *ssl = SSL_new(sslContext); | |
2888 | ||
2889 | if (!ssl) { | |
2890 | const int ssl_error = ERR_get_error(); | |
2891 | debugs(83, 1, "httpsAccept: Error allocating handle: " << ERR_error_string(ssl_error, NULL) ); | |
2892 | comm_close(newfd); | |
2893 | return NULL; | |
2894 | } | |
2895 | ||
2896 | SSL_set_fd(ssl, newfd); | |
2897 | fd_table[newfd].ssl = ssl; | |
2898 | fd_table[newfd].read_method = &ssl_read_method; | |
2899 | fd_table[newfd].write_method = &ssl_write_method; | |
2900 | ||
2901 | debugs(33, 5, "httpsCreate: will negotate SSL on FD " << newfd); | |
2902 | fd_note(newfd, "client https start"); | |
2903 | ||
2904 | return ssl; | |
2905 | } | |
2906 | ||
63be0a78 | 2907 | /** negotiate an SSL connection */ |
1f7c9178 | 2908 | static void |
2909 | clientNegotiateSSL(int fd, void *data) | |
2910 | { | |
e6ccf245 | 2911 | ConnStateData *conn = (ConnStateData *)data; |
1f7c9178 | 2912 | X509 *client_cert; |
a7ad6e4e | 2913 | SSL *ssl = fd_table[fd].ssl; |
1f7c9178 | 2914 | int ret; |
2915 | ||
a7ad6e4e | 2916 | if ((ret = SSL_accept(ssl)) <= 0) { |
62e76326 | 2917 | int ssl_error = SSL_get_error(ssl, ret); |
2918 | ||
2919 | switch (ssl_error) { | |
2920 | ||
2921 | case SSL_ERROR_WANT_READ: | |
2922 | commSetSelect(fd, COMM_SELECT_READ, clientNegotiateSSL, conn, 0); | |
2923 | return; | |
2924 | ||
2925 | case SSL_ERROR_WANT_WRITE: | |
2926 | commSetSelect(fd, COMM_SELECT_WRITE, clientNegotiateSSL, conn, 0); | |
2927 | return; | |
2928 | ||
6de9e64b | 2929 | case SSL_ERROR_SYSCALL: |
2930 | ||
2931 | if (ret == 0) { | |
bf8fe701 | 2932 | debugs(83, 2, "clientNegotiateSSL: Error negotiating SSL connection on FD " << fd << ": Aborted by client"); |
6de9e64b | 2933 | comm_close(fd); |
2934 | return; | |
2935 | } else { | |
2936 | int hard = 1; | |
2937 | ||
2938 | if (errno == ECONNRESET) | |
2939 | hard = 0; | |
2940 | ||
9e008dda | 2941 | debugs(83, hard ? 1 : 2, "clientNegotiateSSL: Error negotiating SSL connection on FD " << |
bf8fe701 | 2942 | fd << ": " << strerror(errno) << " (" << errno << ")"); |
6de9e64b | 2943 | |
2944 | comm_close(fd); | |
2945 | ||
2946 | return; | |
2947 | } | |
2948 | ||
2949 | case SSL_ERROR_ZERO_RETURN: | |
bf8fe701 | 2950 | debugs(83, 1, "clientNegotiateSSL: Error negotiating SSL connection on FD " << fd << ": Closed by client"); |
6de9e64b | 2951 | comm_close(fd); |
2952 | return; | |
2953 | ||
62e76326 | 2954 | default: |
9e008dda AJ |
2955 | debugs(83, 1, "clientNegotiateSSL: Error negotiating SSL connection on FD " << |
2956 | fd << ": " << ERR_error_string(ERR_get_error(), NULL) << | |
2957 | " (" << ssl_error << "/" << ret << ")"); | |
62e76326 | 2958 | comm_close(fd); |
2959 | return; | |
2960 | } | |
2961 | ||
2962 | /* NOTREACHED */ | |
1f7c9178 | 2963 | } |
62e76326 | 2964 | |
6de9e64b | 2965 | if (SSL_session_reused(ssl)) { |
bf8fe701 | 2966 | debugs(83, 2, "clientNegotiateSSL: Session " << SSL_get_session(ssl) << |
2967 | " reused on FD " << fd << " (" << fd_table[fd].ipaddr << ":" << (int)fd_table[fd].remote_port << ")"); | |
6de9e64b | 2968 | } else { |
2969 | if (do_debug(83, 4)) { | |
2970 | /* Write out the SSL session details.. actually the call below, but | |
2971 | * OpenSSL headers do strange typecasts confusing GCC.. */ | |
2972 | /* PEM_write_SSL_SESSION(debug_log, SSL_get_session(ssl)); */ | |
afdd443f | 2973 | #if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x00908000L |
9f3de01a | 2974 | PEM_ASN1_write((i2d_of_void *)i2d_SSL_SESSION, PEM_STRING_SSL_SESSION, debug_log, (char *)SSL_get_session(ssl), NULL,NULL,0,NULL,NULL); |
2930f303 | 2975 | |
0fd2205b | 2976 | #elif (ALLOW_ALWAYS_SSL_SESSION_DETAIL == 1) |
2930f303 | 2977 | |
0fd2205b | 2978 | /* When using gcc 3.3.x and OpenSSL 0.9.7x sometimes a compile error can occur here. |
2979 | * This is caused by an unpredicatble gcc behaviour on a cast of the first argument | |
2980 | * of PEM_ASN1_write(). For this reason this code section is disabled. To enable it, | |
2981 | * define ALLOW_ALWAYS_SSL_SESSION_DETAIL=1. | |
2982 | * Because there are two possible usable cast, if you get an error here, try the other | |
2983 | * commented line. */ | |
2984 | ||
2985 | PEM_ASN1_write((int(*)())i2d_SSL_SESSION, PEM_STRING_SSL_SESSION, debug_log, (char *)SSL_get_session(ssl), NULL,NULL,0,NULL,NULL); | |
2986 | /* PEM_ASN1_write((int(*)(...))i2d_SSL_SESSION, PEM_STRING_SSL_SESSION, debug_log, (char *)SSL_get_session(ssl), NULL,NULL,0,NULL,NULL); */ | |
2930f303 | 2987 | |
0e33d58c | 2988 | #else |
2989 | ||
bf8fe701 | 2990 | debugs(83, 4, "With " OPENSSL_VERSION_TEXT ", session details are available only defining ALLOW_ALWAYS_SSL_SESSION_DETAIL=1 in the source." ); |
0fd2205b | 2991 | |
0e33d58c | 2992 | #endif |
6de9e64b | 2993 | /* Note: This does not automatically fflush the log file.. */ |
2994 | } | |
2995 | ||
bf8fe701 | 2996 | debugs(83, 2, "clientNegotiateSSL: New session " << |
2997 | SSL_get_session(ssl) << " on FD " << fd << " (" << | |
2998 | fd_table[fd].ipaddr << ":" << (int)fd_table[fd].remote_port << | |
2999 | ")"); | |
6de9e64b | 3000 | } |
3001 | ||
bf8fe701 | 3002 | debugs(83, 3, "clientNegotiateSSL: FD " << fd << " negotiated cipher " << |
3003 | SSL_get_cipher(ssl)); | |
1f7c9178 | 3004 | |
6de9e64b | 3005 | client_cert = SSL_get_peer_certificate(ssl); |
62e76326 | 3006 | |
1f7c9178 | 3007 | if (client_cert != NULL) { |
bf8fe701 | 3008 | debugs(83, 3, "clientNegotiateSSL: FD " << fd << |
3009 | " client certificate: subject: " << | |
3010 | X509_NAME_oneline(X509_get_subject_name(client_cert), 0, 0)); | |
3011 | ||
3012 | debugs(83, 3, "clientNegotiateSSL: FD " << fd << | |
3013 | " client certificate: issuer: " << | |
3014 | X509_NAME_oneline(X509_get_issuer_name(client_cert), 0, 0)); | |
1f7c9178 | 3015 | |
1f7c9178 | 3016 | |
62e76326 | 3017 | X509_free(client_cert); |
1f7c9178 | 3018 | } else { |
bf8fe701 | 3019 | debugs(83, 5, "clientNegotiateSSL: FD " << fd << |
3020 | " has no certificate."); | |
1f7c9178 | 3021 | } |
3022 | ||
a46d2c0e | 3023 | conn->readSomeData(); |
1f7c9178 | 3024 | } |
3025 | ||
63be0a78 | 3026 | /** handle a new HTTPS connection */ |
1f7c9178 | 3027 | static void |
15595aab | 3028 | httpsAccept(int sock, int newfd, ConnectionDetail *details, |
62e76326 | 3029 | comm_err_t flag, int xerrno, void *data) |
1f7c9178 | 3030 | { |
3f38a55e | 3031 | https_port_list *s = (https_port_list *)data; |
3032 | SSL_CTX *sslContext = s->sslContext; | |
c4b7a5a9 | 3033 | |
02d1422b | 3034 | if (flag == COMM_ERR_CLOSING) { |
3035 | return; | |
3036 | } | |
3037 | ||
a46d2c0e | 3038 | if (!okToAccept()) |
3039 | AcceptLimiter::Instance().defer (sock, httpsAccept, data); | |
3040 | else | |
3041 | /* kick off another one for later */ | |
3042 | comm_accept(sock, httpsAccept, data); | |
3043 | ||
c4b7a5a9 | 3044 | if (flag != COMM_OK) { |
62e76326 | 3045 | errno = xerrno; |
bf8fe701 | 3046 | debugs(33, 1, "httpsAccept: FD " << sock << ": accept failure: " << xstrerr(xerrno)); |
62e76326 | 3047 | return; |
c4b7a5a9 | 3048 | } |
62e76326 | 3049 | |
ae7ff0b8 | 3050 | SSL *ssl = NULL; |
3051 | if (!(ssl = httpsCreate(newfd, details, sslContext))) | |
62e76326 | 3052 | return; |
94c3d66f | 3053 | |
1cf238db | 3054 | debugs(33, 5, "httpsAccept: FD " << newfd << " accepted, starting SSL negotiation."); |
3055 | fd_note(newfd, "client https connect"); | |
ae7ff0b8 | 3056 | ConnStateData *connState = connStateCreate(details->peer, details->me, |
9e008dda | 3057 | newfd, &s->http); |
1cf238db | 3058 | typedef CommCbMemFunT<ConnStateData, CommCloseCbParams> Dialer; |
3059 | AsyncCall::Pointer call = asyncCall(33, 5, "ConnStateData::connStateClosed", | |
9e008dda | 3060 | Dialer(connState, &ConnStateData::connStateClosed)); |
1cf238db | 3061 | comm_add_close_handler(newfd, call); |
62e76326 | 3062 | |
c4b7a5a9 | 3063 | if (Config.onoff.log_fqdn) |
cc192b50 | 3064 | fqdncache_gethostbyaddr(details->peer, FQDN_LOOKUP_IF_MISS); |
62e76326 | 3065 | |
9e008dda AJ |
3066 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; |
3067 | AsyncCall::Pointer timeoutCall = asyncCall(33, 5, "ConnStateData::requestTimeout", | |
3068 | TimeoutDialer(connState,&ConnStateData::requestTimeout)); | |
3069 | commSetTimeout(newfd, Config.Timeout.request, timeoutCall); | |
62e76326 | 3070 | |
1f7c9178 | 3071 | #if USE_IDENT |
62e76326 | 3072 | |
8000a965 | 3073 | ACLChecklist identChecklist; |
62e76326 | 3074 | |
cc192b50 | 3075 | identChecklist.src_addr = details->peer; |
62e76326 | 3076 | |
cc192b50 | 3077 | identChecklist.my_addr = details->me; |
62e76326 | 3078 | |
506768d9 | 3079 | identChecklist.accessList = cbdataReference(Config.accessList.identLookup); |
010af6e6 | 3080 | |
108d65b2 | 3081 | /* cbdataReferenceDone() happens in either fastCheck() or ~ACLCheckList */ |
3082 | ||
010af6e6 | 3083 | if (identChecklist.fastCheck()) |
cc192b50 | 3084 | identStart(details->me, details->peer, clientIdentDone, connState); |
62e76326 | 3085 | |
1f7c9178 | 3086 | #endif |
62e76326 | 3087 | |
b2130d58 | 3088 | if (s->http.tcp_keepalive.enabled) { |
9e008dda | 3089 | commSetTcpKeepalive(newfd, s->http.tcp_keepalive.idle, s->http.tcp_keepalive.interval, s->http.tcp_keepalive.timeout); |
b2130d58 | 3090 | } |
3091 | ||
c4b7a5a9 | 3092 | commSetSelect(newfd, COMM_SELECT_READ, clientNegotiateSSL, connState, 0); |
62e76326 | 3093 | |
cc192b50 | 3094 | clientdbEstablished(details->peer, 1); |
62e76326 | 3095 | |
3f38a55e | 3096 | incoming_sockets_accepted++; |
1f7c9178 | 3097 | } |
3098 | ||
ae7ff0b8 | 3099 | bool |
3100 | ConnStateData::switchToHttps() | |
3101 | { | |
3102 | assert(!switchedToHttps_); | |
3103 | ||
3104 | //HTTPMSGLOCK(currentobject->http->request); | |
3105 | assert(areAllContextsForThisConnection()); | |
3106 | freeAllContexts(); | |
3107 | //currentobject->connIsFinished(); | |
3108 | ||
3109 | debugs(33, 5, HERE << "converting FD " << fd << " to SSL"); | |
3110 | ||
3111 | // fake a ConnectionDetail object; XXX: make ConnState a ConnectionDetail? | |
3112 | ConnectionDetail detail; | |
3113 | detail.me = me; | |
3114 | detail.peer = peer; | |
3115 | ||
3116 | SSL_CTX *sslContext = port->sslContext; | |
3117 | SSL *ssl = NULL; | |
3118 | if (!(ssl = httpsCreate(fd, &detail, sslContext))) | |
3119 | return false; | |
3120 | ||
3121 | // commSetTimeout() was called for this request before we switched. | |
3122 | ||
3123 | // Disable the client read handler until peer selection is complete | |
3124 | commSetSelect(fd, COMM_SELECT_READ, NULL, NULL, 0); | |
3125 | ||
3126 | commSetSelect(fd, COMM_SELECT_READ, clientNegotiateSSL, this, 0); | |
3127 | ||
3128 | switchedToHttps_ = true; | |
3129 | return true; | |
3130 | } | |
3131 | ||
1f7c9178 | 3132 | #endif /* USE_SSL */ |
3133 | ||
15df8349 | 3134 | |
d193a436 | 3135 | static void |
15df8349 | 3136 | clientHttpConnectionsOpen(void) |
3137 | { | |
cc192b50 | 3138 | http_port_list *s = NULL; |
3139 | int fd = -1; | |
ae7ff0b8 | 3140 | #if USE_SSL |
3141 | int bumpCount = 0; // counts http_ports with sslBump option | |
3142 | #endif | |
62e76326 | 3143 | |
7e3ce7b9 | 3144 | for (s = Config.Sockaddr.http; s; s = s->next) { |
62e76326 | 3145 | if (MAXHTTPPORTS == NHttpSockets) { |
bf8fe701 | 3146 | debugs(1, 1, "WARNING: You have too many 'http_port' lines."); |
3147 | debugs(1, 1, " The limit is " << MAXHTTPPORTS); | |
62e76326 | 3148 | continue; |
3149 | } | |
3150 | ||
ae7ff0b8 | 3151 | #if USE_SSL |
3152 | if (s->sslBump && s->sslContext == NULL) { | |
3153 | debugs(1, 1, "Will not bump SSL at http_port " << | |
3154 | s->http.s << " due to SSL initialization failure."); | |
3155 | s->sslBump = 0; | |
3156 | } | |
3157 | if (s->sslBump) | |
3158 | ++bumpCount; | |
3159 | #endif | |
3160 | ||
62e76326 | 3161 | enter_suid(); |
c303f6e3 | 3162 | |
9e008dda | 3163 | if (s->spoof_client_ip) { |
c303f6e3 | 3164 | fd = comm_openex(SOCK_STREAM, IPPROTO_TCP, s->s, (COMM_NONBLOCKING|COMM_TRANSPARENT), 0, "HTTP Socket"); |
2ad20b4f | 3165 | } else { |
c303f6e3 AJ |
3166 | fd = comm_open(SOCK_STREAM, IPPROTO_TCP, s->s, COMM_NONBLOCKING, "HTTP Socket"); |
3167 | } | |
3168 | ||
62e76326 | 3169 | leave_suid(); |
3170 | ||
3171 | if (fd < 0) | |
3172 | continue; | |
3173 | ||
3174 | comm_listen(fd); | |
3175 | ||
3176 | comm_accept(fd, httpAccept, s); | |
3177 | ||
bf8fe701 | 3178 | debugs(1, 1, "Accepting " << |
2ad20b4f | 3179 | (s->intercepted ? " intercepted" : "") << |
f165d2fb | 3180 | (s->spoof_client_ip ? " spoofing" : "") << |
2ad20b4f | 3181 | (s->sslBump ? " bumpy" : "") << |
9e008dda | 3182 | (s->accel ? " accelerated" : "") |
cc192b50 | 3183 | << " HTTP connections at " << s->s |
3184 | << ", FD " << fd << "." ); | |
62e76326 | 3185 | |
3186 | HttpSockets[NHttpSockets++] = fd; | |
15df8349 | 3187 | } |
ae7ff0b8 | 3188 | |
3189 | #if USE_SSL | |
3190 | if (bumpCount && !Config.accessList.ssl_bump) | |
3191 | debugs(33, 1, "WARNING: http_port(s) with SslBump found, but no " << | |
9e008dda AJ |
3192 | std::endl << "\tssl_bump ACL configured. No requests will be " << |
3193 | "bumped."); | |
ae7ff0b8 | 3194 | #endif |
d193a436 | 3195 | } |
3196 | ||
3197 | #if USE_SSL | |
3198 | static void | |
3199 | clientHttpsConnectionsOpen(void) | |
3200 | { | |
3201 | https_port_list *s; | |
d193a436 | 3202 | int fd; |
62e76326 | 3203 | |
3f38a55e | 3204 | for (s = Config.Sockaddr.https; s; s = (https_port_list *)s->http.next) { |
62e76326 | 3205 | if (MAXHTTPPORTS == NHttpSockets) { |
ae7ff0b8 | 3206 | debugs(1, 1, "Ignoring 'https_port' lines exceeding the limit."); |
3207 | debugs(1, 1, "The limit is " << MAXHTTPPORTS << " HTTPS ports."); | |
62e76326 | 3208 | continue; |
3209 | } | |
3210 | ||
f9ad0106 | 3211 | if (s->sslContext == NULL) { |
ae7ff0b8 | 3212 | debugs(1, 1, "Ignoring https_port " << s->http.s << |
3213 | " due to SSL initialization failure."); | |
3214 | continue; | |
f9ad0106 | 3215 | } |
3216 | ||
62e76326 | 3217 | enter_suid(); |
3218 | fd = comm_open(SOCK_STREAM, | |
bdb741f4 | 3219 | IPPROTO_TCP, |
cc192b50 | 3220 | s->http.s, |
3221 | COMM_NONBLOCKING, "HTTPS Socket"); | |
62e76326 | 3222 | leave_suid(); |
3223 | ||
3224 | if (fd < 0) | |
3225 | continue; | |
3226 | ||
3227 | comm_listen(fd); | |
3228 | ||
3229 | comm_accept(fd, httpsAccept, s); | |
3230 | ||
cc192b50 | 3231 | debugs(1, 1, "Accepting HTTPS connections at " << s->http.s << ", FD " << fd << "."); |
62e76326 | 3232 | |
3233 | HttpSockets[NHttpSockets++] = fd; | |
1f7c9178 | 3234 | } |
d193a436 | 3235 | } |
3236 | ||
3237 | #endif | |
3238 | ||
3239 | void | |
3240 | clientOpenListenSockets(void) | |
3241 | { | |
3242 | clientHttpConnectionsOpen(); | |
3243 | #if USE_SSL | |
62e76326 | 3244 | |
d193a436 | 3245 | clientHttpsConnectionsOpen(); |
1f7c9178 | 3246 | #endif |
62e76326 | 3247 | |
15df8349 | 3248 | if (NHttpSockets < 1) |
62e76326 | 3249 | fatal("Cannot open HTTP Port"); |
15df8349 | 3250 | } |
edce4d98 | 3251 | |
c0fbae16 | 3252 | void |
3253 | clientHttpConnectionsClose(void) | |
3254 | { | |
3255 | int i; | |
62e76326 | 3256 | |
c0fbae16 | 3257 | for (i = 0; i < NHttpSockets; i++) { |
62e76326 | 3258 | if (HttpSockets[i] >= 0) { |
bf8fe701 | 3259 | debugs(1, 1, "FD " << HttpSockets[i] << |
3260 | " Closing HTTP connection"); | |
62e76326 | 3261 | comm_close(HttpSockets[i]); |
3262 | HttpSockets[i] = -1; | |
3263 | } | |
c0fbae16 | 3264 | } |
62e76326 | 3265 | |
c0fbae16 | 3266 | NHttpSockets = 0; |
3267 | } | |
f66a9ef4 | 3268 | |
3269 | int | |
190154cf | 3270 | varyEvaluateMatch(StoreEntry * entry, HttpRequest * request) |
f66a9ef4 | 3271 | { |
3272 | const char *vary = request->vary_headers; | |
a9925b40 | 3273 | int has_vary = entry->getReply()->header.has(HDR_VARY); |
f66a9ef4 | 3274 | #if X_ACCELERATOR_VARY |
62e76326 | 3275 | |
edce4d98 | 3276 | has_vary |= |
a9925b40 | 3277 | entry->getReply()->header.has(HDR_X_ACCELERATOR_VARY); |
f66a9ef4 | 3278 | #endif |
62e76326 | 3279 | |
f66a9ef4 | 3280 | if (!has_vary || !entry->mem_obj->vary_headers) { |
62e76326 | 3281 | if (vary) { |
3282 | /* Oops... something odd is going on here.. */ | |
9e008dda AJ |
3283 | debugs(33, 1, "varyEvaluateMatch: Oops. Not a Vary object on second attempt, '" << |
3284 | entry->mem_obj->url << "' '" << vary << "'"); | |
62e76326 | 3285 | safe_free(request->vary_headers); |
3286 | return VARY_CANCEL; | |
3287 | } | |
3288 | ||
3289 | if (!has_vary) { | |
3290 | /* This is not a varying object */ | |
3291 | return VARY_NONE; | |
3292 | } | |
3293 | ||
3294 | /* virtual "vary" object found. Calculate the vary key and | |
3295 | * continue the search | |
3296 | */ | |
3297 | vary = httpMakeVaryMark(request, entry->getReply()); | |
3298 | ||
3299 | if (vary) { | |
3300 | request->vary_headers = xstrdup(vary); | |
3301 | return VARY_OTHER; | |
3302 | } else { | |
3303 | /* Ouch.. we cannot handle this kind of variance */ | |
3304 | /* XXX This cannot really happen, but just to be complete */ | |
3305 | return VARY_CANCEL; | |
3306 | } | |
f66a9ef4 | 3307 | } else { |
62e76326 | 3308 | if (!vary) { |
3309 | vary = httpMakeVaryMark(request, entry->getReply()); | |
3310 | ||
3311 | if (vary) | |
3312 | request->vary_headers = xstrdup(vary); | |
3313 | } | |
3314 | ||
3315 | if (!vary) { | |
3316 | /* Ouch.. we cannot handle this kind of variance */ | |
3317 | /* XXX This cannot really happen, but just to be complete */ | |
3318 | return VARY_CANCEL; | |
3319 | } else if (strcmp(vary, entry->mem_obj->vary_headers) == 0) { | |
3320 | return VARY_MATCH; | |
3321 | } else { | |
3322 | /* Oops.. we have already been here and still haven't | |
3323 | * found the requested variant. Bail out | |
3324 | */ | |
bf8fe701 | 3325 | debugs(33, 1, "varyEvaluateMatch: Oops. Not a Vary match on second attempt, '" << |
9e008dda | 3326 | entry->mem_obj->url << "' '" << vary << "'"); |
62e76326 | 3327 | return VARY_CANCEL; |
3328 | } | |
f66a9ef4 | 3329 | } |
3330 | } | |
28d4805a | 3331 | |
4fb35c3c | 3332 | ACLChecklist * |
59a1efb2 | 3333 | clientAclChecklistCreate(const acl_access * acl, ClientHttpRequest * http) |
28d4805a | 3334 | { |
4fb35c3c | 3335 | ACLChecklist *ch; |
1cf238db | 3336 | ConnStateData * conn = http->getConn(); |
3337 | ch = aclChecklistCreate(acl, http->request, cbdataReferenceValid(conn) && conn != NULL ? conn->rfc931 : dash_str); | |
28d4805a | 3338 | |
3339 | /* | |
3340 | * hack for ident ACL. It needs to get full addresses, and a place to store | |
3341 | * the ident result on persistent connections... | |
3342 | */ | |
3343 | /* connection oriented auth also needs these two lines for it's operation. */ | |
3344 | /* | |
3345 | * Internal requests do not have a connection reference, because: A) their | |
3346 | * byte count may be transformed before being applied to an outbound | |
3347 | * connection B) they are internal - any limiting on them should be done on | |
3348 | * the server end. | |
3349 | */ | |
62e76326 | 3350 | |
1cf238db | 3351 | if (conn != NULL) |
a2ac85d9 | 3352 | ch->conn(conn); /* unreferenced in acl.cc */ |
28d4805a | 3353 | |
3354 | return ch; | |
3355 | } | |
a46d2c0e | 3356 | |
3357 | CBDATA_CLASS_INIT(ConnStateData); | |
3358 | ||
1cf238db | 3359 | ConnStateData::ConnStateData() :AsyncJob("ConnStateData"), transparent_ (false), reading_ (false), closing_ (false) |
b65351fa | 3360 | { |
d67acb4e AJ |
3361 | pinning.fd = -1; |
3362 | pinning.pinned = false; | |
3363 | pinning.auth = false; | |
b65351fa | 3364 | } |
a46d2c0e | 3365 | |
3366 | bool | |
3367 | ConnStateData::transparent() const | |
3368 | { | |
3369 | return transparent_; | |
3370 | } | |
3371 | ||
3372 | void | |
3373 | ConnStateData::transparent(bool const anInt) | |
3374 | { | |
3375 | transparent_ = anInt; | |
3376 | } | |
3377 | ||
3378 | bool | |
3379 | ConnStateData::reading() const | |
3380 | { | |
3381 | return reading_; | |
3382 | } | |
3383 | ||
3384 | void | |
3385 | ConnStateData::reading(bool const newBool) | |
3386 | { | |
3387 | assert (reading() != newBool); | |
3388 | reading_ = newBool; | |
3389 | } | |
3390 | ||
5f8252d2 | 3391 | |
3392 | BodyPipe::Pointer | |
3e62bd58 | 3393 | ConnStateData::expectRequestBody(int64_t size) |
5f8252d2 | 3394 | { |
3395 | bodyPipe = new BodyPipe(this); | |
3396 | bodyPipe->setBodySize(size); | |
3397 | return bodyPipe; | |
3398 | } | |
3399 | ||
55e44db9 | 3400 | bool |
3401 | ConnStateData::closing() const | |
3402 | { | |
3403 | return closing_; | |
3404 | } | |
3405 | ||
63be0a78 | 3406 | /** |
3407 | * Called by ClientSocketContext to give the connection a chance to read | |
3408 | * the entire body before closing the socket. | |
3409 | */ | |
55e44db9 | 3410 | void |
5f8252d2 | 3411 | ConnStateData::startClosing(const char *reason) |
55e44db9 | 3412 | { |
5f8252d2 | 3413 | debugs(33, 5, HERE << "startClosing " << this << " for " << reason); |
3414 | assert(!closing()); | |
3415 | closing_ = true; | |
3416 | ||
3417 | assert(bodyPipe != NULL); | |
3418 | assert(bodySizeLeft() > 0); | |
3419 | ||
3420 | // We do not have to abort the body pipeline because we are going to | |
3421 | // read the entire body anyway. | |
3422 | // Perhaps an ICAP server wants to log the complete request. | |
3423 | ||
3424 | // If a consumer abort have caused this closing, we may get stuck | |
3425 | // as nobody is consuming our data. Allow auto-consumption. | |
3426 | bodyPipe->enableAutoConsumption(); | |
55e44db9 | 3427 | } |
3428 | ||
a46d2c0e | 3429 | char * |
3430 | ConnStateData::In::addressToReadInto() const | |
3431 | { | |
3432 | return buf + notYetUsed; | |
3433 | } | |
3434 | ||
3435 | ConnStateData::In::In() : buf (NULL), notYetUsed (0), allocatedSize (0) | |
3436 | {} | |
3437 | ||
3438 | ConnStateData::In::~In() | |
3439 | { | |
3440 | if (allocatedSize) | |
3441 | memFreeBuf(allocatedSize, buf); | |
3442 | } | |
d67acb4e AJ |
3443 | |
3444 | /* This is a comm call normally scheduled by comm_close() */ | |
3445 | void | |
3446 | ConnStateData::clientPinnedConnectionClosed(const CommCloseCbParams &io) | |
3447 | { | |
3448 | pinning.fd = -1; | |
3449 | if (pinning.peer) { | |
9e008dda | 3450 | cbdataReferenceDone(pinning.peer); |
d67acb4e AJ |
3451 | } |
3452 | safe_free(pinning.host); | |
3453 | /* NOTE: pinning.pinned should be kept. This combined with fd == -1 at the end of a request indicates that the host | |
3454 | * connection has gone away */ | |
3455 | } | |
3456 | ||
9e008dda AJ |
3457 | void ConnStateData::pinConnection(int pinning_fd, HttpRequest *request, struct peer *peer, bool auth) |
3458 | { | |
d67acb4e AJ |
3459 | fde *f; |
3460 | char desc[FD_DESC_SZ]; | |
3461 | ||
3462 | if (pinning.fd == pinning_fd) | |
9e008dda | 3463 | return; |
d67acb4e | 3464 | else if (pinning.fd != -1) |
9e008dda AJ |
3465 | comm_close(pinning.fd); |
3466 | ||
3467 | if (pinning.host) | |
3468 | safe_free(pinning.host); | |
3469 | ||
d67acb4e AJ |
3470 | pinning.fd = pinning_fd; |
3471 | pinning.host = xstrdup(request->GetHost()); | |
3472 | pinning.port = request->port; | |
3473 | pinning.pinned = true; | |
3474 | if (pinning.peer) | |
9e008dda | 3475 | cbdataReferenceDone(pinning.peer); |
d67acb4e | 3476 | if (peer) |
9e008dda | 3477 | pinning.peer = cbdataReference(peer); |
d67acb4e AJ |
3478 | pinning.auth = auth; |
3479 | f = &fd_table[fd]; | |
3480 | snprintf(desc, FD_DESC_SZ, "%s pinned connection for %s:%d (%d)", | |
9e008dda | 3481 | (auth || !peer) ? request->GetHost() : peer->name, f->ipaddr, (int) f->remote_port, fd); |
d67acb4e | 3482 | fd_note(pinning_fd, desc); |
9e008dda | 3483 | |
d67acb4e AJ |
3484 | typedef CommCbMemFunT<ConnStateData, CommCloseCbParams> Dialer; |
3485 | pinning.closeHandler = asyncCall(33, 5, "ConnStateData::clientPinnedConnectionClosed", | |
9e008dda | 3486 | Dialer(this, &ConnStateData::clientPinnedConnectionClosed)); |
d67acb4e AJ |
3487 | comm_add_close_handler(pinning_fd, pinning.closeHandler); |
3488 | ||
3489 | } | |
3490 | ||
3491 | int ConnStateData::validatePinnedConnection(HttpRequest *request, const struct peer *peer) | |
3492 | { | |
3493 | bool valid = true; | |
3494 | if (pinning.fd < 0) | |
9e008dda AJ |
3495 | return -1; |
3496 | ||
d67acb4e | 3497 | if (pinning.auth && request && strcasecmp(pinning.host, request->GetHost()) != 0) { |
9e008dda | 3498 | valid = false; |
d67acb4e | 3499 | } |
9e008dda AJ |
3500 | if (request && pinning.port != request->port) { |
3501 | valid = false; | |
d67acb4e | 3502 | } |
9e008dda AJ |
3503 | if (pinning.peer && !cbdataReferenceValid(pinning.peer)) { |
3504 | valid = false; | |
d67acb4e | 3505 | } |
9e008dda AJ |
3506 | if (peer != pinning.peer) { |
3507 | valid = false; | |
d67acb4e AJ |
3508 | } |
3509 | ||
9e008dda AJ |
3510 | if (!valid) { |
3511 | int pinning_fd=pinning.fd; | |
3512 | /* The pinning info is not safe, remove any pinning info*/ | |
3513 | unpinConnection(); | |
d67acb4e | 3514 | |
9e008dda AJ |
3515 | /* also close the server side socket, we should not use it for invalid/unauthenticated |
3516 | requests... | |
3517 | */ | |
3518 | comm_close(pinning_fd); | |
3519 | return -1; | |
d67acb4e AJ |
3520 | } |
3521 | ||
3522 | return pinning.fd; | |
3523 | } | |
3524 | ||
3525 | void ConnStateData::unpinConnection() | |
3526 | { | |
9e008dda AJ |
3527 | if (pinning.peer) |
3528 | cbdataReferenceDone(pinning.peer); | |
d67acb4e | 3529 | |
9e008dda AJ |
3530 | if (pinning.closeHandler != NULL) { |
3531 | comm_remove_close_handler(pinning.fd, pinning.closeHandler); | |
3532 | pinning.closeHandler = NULL; | |
d67acb4e AJ |
3533 | } |
3534 | pinning.fd = -1; | |
3535 | safe_free(pinning.host); | |
3536 | } |