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dd11e0b7 | 1 | /* |
262a0e14 | 2 | * $Id$ |
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 | * | |
d85b8894 | 38 | \section 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 | * | |
d85b8894 | 63 | \section pconn_logic Persistent connection logic: |
63be0a78 | 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" |
04f55905 AJ |
85 | |
86 | #include "acl/FilledChecklist.h" | |
87 | #include "auth/UserRequest.h" | |
88 | #include "ChunkedCodingParser.h" | |
a46d2c0e | 89 | #include "client_side.h" |
04f55905 AJ |
90 | #include "client_side_reply.h" |
91 | #include "client_side_request.h" | |
92 | #include "ClientRequestContext.h" | |
c8be6d7b | 93 | #include "clientStream.h" |
c4b7a5a9 | 94 | #include "comm.h" |
04f55905 | 95 | #include "comm/ListenStateData.h" |
a67d2b2e | 96 | #include "base/TextException.h" |
04f55905 | 97 | #include "ConnectionDetail.h" |
056b24a1 | 98 | #include "eui/Config.h" |
04f55905 | 99 | #include "fde.h" |
25b6a907 | 100 | #include "HttpHdrContRange.h" |
528b2c61 | 101 | #include "HttpReply.h" |
102 | #include "HttpRequest.h" | |
4daaf3cb AJ |
103 | #include "ident/Config.h" |
104 | #include "ident/Ident.h" | |
96d89ea0 | 105 | #include "ip/Intercept.h" |
fe090a86 | 106 | #include "ipc/StartListening.h" |
0eb49b6d | 107 | #include "MemBuf.h" |
04f55905 AJ |
108 | #include "MemObject.h" |
109 | #include "ProtoPort.h" | |
1fa9b1a7 | 110 | #include "rfc1738.h" |
985c86bc | 111 | #include "SquidTime.h" |
04f55905 | 112 | #include "Store.h" |
5cafc1d6 | 113 | |
5492ad1d | 114 | #if LINGERING_CLOSE |
115 | #define comm_close comm_lingering_close | |
116 | #endif | |
117 | ||
fe090a86 AR |
118 | /// dials clientHttpConnectionOpened or clientHttpsConnectionOpened call |
119 | class ListeningStartedDialer: public CallDialer, public Ipc::StartListeningCb | |
120 | { | |
121 | public: | |
122 | typedef void (*Handler)(int fd, int errNo, http_port_list *portCfg); | |
123 | ListeningStartedDialer(Handler aHandler, http_port_list *aPortCfg): | |
5667a628 | 124 | handler(aHandler), portCfg(aPortCfg) {} |
fe090a86 | 125 | |
5667a628 AR |
126 | virtual void print(std::ostream &os) const { |
127 | startPrint(os) << | |
128 | ", port=" << (void*)portCfg << ')'; | |
129 | } | |
fe090a86 AR |
130 | |
131 | virtual bool canDial(AsyncCall &) const { return true; } | |
132 | virtual void dial(AsyncCall &) { (handler)(fd, errNo, portCfg); } | |
133 | ||
134 | public: | |
135 | Handler handler; | |
136 | ||
137 | private: | |
138 | http_port_list *portCfg; ///< from Config.Sockaddr.http | |
139 | }; | |
140 | ||
141 | ||
142 | static void clientHttpConnectionOpened(int fd, int errNo, http_port_list *s); | |
00516be1 AR |
143 | #if USE_SSL |
144 | static void clientHttpsConnectionOpened(int fd, int errNo, http_port_list *s); | |
145 | #endif | |
fe090a86 | 146 | |
edce4d98 | 147 | /* our socket-related context */ |
62e76326 | 148 | |
62e76326 | 149 | |
0655fa4d | 150 | CBDATA_CLASS_INIT(ClientSocketContext); |
62e76326 | 151 | |
0655fa4d | 152 | void * |
153 | ClientSocketContext::operator new (size_t byteCount) | |
154 | { | |
155 | /* derived classes with different sizes must implement their own new */ | |
156 | assert (byteCount == sizeof (ClientSocketContext)); | |
157 | CBDATA_INIT_TYPE(ClientSocketContext); | |
158 | return cbdataAlloc(ClientSocketContext); | |
159 | } | |
62e76326 | 160 | |
0655fa4d | 161 | void |
162 | ClientSocketContext::operator delete (void *address) | |
163 | { | |
164 | cbdataFree (address); | |
165 | } | |
7a2f978b | 166 | |
edce4d98 | 167 | /* Local functions */ |
528b2c61 | 168 | /* ClientSocketContext */ |
59a1efb2 | 169 | static ClientSocketContext *ClientSocketContextNew(ClientHttpRequest *); |
edce4d98 | 170 | /* other */ |
2b663917 | 171 | static IOCB clientWriteComplete; |
172 | static IOCB clientWriteBodyComplete; | |
1cf238db | 173 | static bool clientParseRequest(ConnStateData * conn, bool &do_next_read); |
b5c39993 | 174 | static PF clientLifetimeTimeout; |
719c7e0a | 175 | static ClientSocketContext *parseHttpRequestAbort(ConnStateData * conn, const char *uri); |
1cf238db | 176 | static ClientSocketContext *parseHttpRequest(ConnStateData *, HttpParser *, HttpRequestMethod *, HttpVersion *); |
3898f57f | 177 | #if USE_IDENT |
05832ae1 | 178 | static IDCB clientIdentDone; |
3898f57f | 179 | #endif |
edce4d98 | 180 | static CSCB clientSocketRecipient; |
181 | static CSD clientSocketDetach; | |
59a1efb2 | 182 | static void clientSetKeepaliveFlag(ClientHttpRequest *); |
190154cf | 183 | static int clientIsContentLengthValid(HttpRequest * r); |
47f6e231 | 184 | static int clientIsRequestBodyTooLargeForPolicy(int64_t bodyLength); |
50c09fc4 | 185 | |
c8be6d7b | 186 | static void clientUpdateStatHistCounters(log_type logType, int svc_time); |
187 | static void clientUpdateStatCounters(log_type logType); | |
188 | static void clientUpdateHierCounters(HierarchyLogEntry *); | |
528b2c61 | 189 | static bool clientPingHasFinished(ping_data const *aPing); |
3ff65596 | 190 | void prepareLogWithRequestDetails(HttpRequest *, AccessLogEntry *); |
e4a67a80 | 191 | #ifndef PURIFY |
1cf238db | 192 | static int connIsUsable(ConnStateData * conn); |
e4a67a80 | 193 | #endif |
2324cda2 | 194 | static int responseFinishedOrFailed(HttpReply * rep, StoreIOBuffer const &receivedData); |
1cf238db | 195 | static void ClientSocketContextPushDeferredIfNeeded(ClientSocketContext::Pointer deferredRequest, ConnStateData * conn); |
c8be6d7b | 196 | static void clientUpdateSocketStats(log_type logType, size_t size); |
197 | ||
84cc2635 | 198 | char *skipLeadingSpace(char *aString); |
3b299123 | 199 | static void connNoteUseOfBuffer(ConnStateData* conn, size_t byteCount); |
62e76326 | 200 | |
b7ac5457 | 201 | static ConnStateData *connStateCreate(const Ip::Address &peer, const Ip::Address &me, int fd, http_port_list *port); |
528b2c61 | 202 | |
ae7ff0b8 | 203 | |
528b2c61 | 204 | int |
205 | ClientSocketContext::fd() const | |
206 | { | |
207 | assert (http); | |
94a396a3 | 208 | assert (http->getConn() != NULL); |
98242069 | 209 | return http->getConn()->fd; |
528b2c61 | 210 | } |
c8be6d7b | 211 | |
212 | clientStreamNode * | |
528b2c61 | 213 | ClientSocketContext::getTail() const |
c8be6d7b | 214 | { |
0655fa4d | 215 | if (http->client_stream.tail) |
216 | return (clientStreamNode *)http->client_stream.tail->data; | |
217 | ||
218 | return NULL; | |
c8be6d7b | 219 | } |
220 | ||
221 | clientStreamNode * | |
528b2c61 | 222 | ClientSocketContext::getClientReplyContext() const |
c8be6d7b | 223 | { |
528b2c61 | 224 | return (clientStreamNode *)http->client_stream.tail->prev->data; |
c8be6d7b | 225 | } |
226 | ||
63be0a78 | 227 | /** |
c4b7a5a9 | 228 | * This routine should be called to grow the inbuf and then |
229 | * call comm_read(). | |
230 | */ | |
231 | void | |
a46d2c0e | 232 | ConnStateData::readSomeData() |
c4b7a5a9 | 233 | { |
a46d2c0e | 234 | if (reading()) |
62e76326 | 235 | return; |
236 | ||
bf8fe701 | 237 | debugs(33, 4, "clientReadSomeData: FD " << fd << ": reading request..."); |
62e76326 | 238 | |
a46d2c0e | 239 | makeSpaceAvailable(); |
62e76326 | 240 | |
1cf238db | 241 | typedef CommCbMemFunT<ConnStateData, CommIoCbParams> Dialer; |
4299f876 | 242 | reader = JobCallback(33, 5, |
4cb2536f | 243 | Dialer, this, ConnStateData::clientReadRequest); |
f84dd7eb | 244 | comm_read(fd, in.addressToReadInto(), getAvailableBufferLength(), reader); |
c4b7a5a9 | 245 | } |
62e76326 | 246 | |
c4b7a5a9 | 247 | |
c8be6d7b | 248 | void |
1cf238db | 249 | ClientSocketContext::removeFromConnectionList(ConnStateData * conn) |
c8be6d7b | 250 | { |
0655fa4d | 251 | ClientSocketContext::Pointer *tempContextPointer; |
1cf238db | 252 | assert(conn != NULL && cbdataReferenceValid(conn)); |
94a396a3 | 253 | assert(conn->getCurrentContext() != NULL); |
c8be6d7b | 254 | /* Unlink us from the connection request list */ |
0655fa4d | 255 | tempContextPointer = & conn->currentobject; |
62e76326 | 256 | |
0655fa4d | 257 | while (tempContextPointer->getRaw()) { |
62e76326 | 258 | if (*tempContextPointer == this) |
259 | break; | |
260 | ||
261 | tempContextPointer = &(*tempContextPointer)->next; | |
c8be6d7b | 262 | } |
62e76326 | 263 | |
0655fa4d | 264 | assert(tempContextPointer->getRaw() != NULL); |
528b2c61 | 265 | *tempContextPointer = next; |
266 | next = NULL; | |
c8be6d7b | 267 | } |
ea6f43cd | 268 | |
0655fa4d | 269 | ClientSocketContext::~ClientSocketContext() |
f88bb09c | 270 | { |
0655fa4d | 271 | clientStreamNode *node = getTail(); |
272 | ||
273 | if (node) { | |
274 | ClientSocketContext *streamContext = dynamic_cast<ClientSocketContext *> (node->data.getRaw()); | |
275 | ||
276 | if (streamContext) { | |
277 | /* We are *always* the tail - prevent recursive free */ | |
278 | assert(this == streamContext); | |
279 | node->data = NULL; | |
280 | } | |
281 | } | |
282 | ||
283 | if (connRegistered_) | |
284 | deRegisterWithConn(); | |
285 | ||
286 | httpRequestFree(http); | |
287 | ||
edce4d98 | 288 | /* clean up connection links to us */ |
c53577d9 | 289 | assert(this != next.getRaw()); |
0655fa4d | 290 | } |
62e76326 | 291 | |
0655fa4d | 292 | void |
293 | ClientSocketContext::registerWithConn() | |
294 | { | |
295 | assert (!connRegistered_); | |
296 | assert (http); | |
94a396a3 | 297 | assert (http->getConn() != NULL); |
0655fa4d | 298 | connRegistered_ = true; |
98242069 | 299 | http->getConn()->addContextToQueue(this); |
0655fa4d | 300 | } |
301 | ||
302 | void | |
303 | ClientSocketContext::deRegisterWithConn() | |
304 | { | |
305 | assert (connRegistered_); | |
98242069 | 306 | removeFromConnectionList(http->getConn()); |
0655fa4d | 307 | connRegistered_ = false; |
308 | } | |
309 | ||
310 | void | |
311 | ClientSocketContext::connIsFinished() | |
312 | { | |
313 | assert (http); | |
94a396a3 | 314 | assert (http->getConn() != NULL); |
0655fa4d | 315 | deRegisterWithConn(); |
316 | /* we can't handle any more stream data - detach */ | |
317 | clientStreamDetach(getTail(), http); | |
318 | } | |
319 | ||
fedd1531 | 320 | ClientSocketContext::ClientSocketContext() : http(NULL), reply(NULL), next(NULL), |
0655fa4d | 321 | writtenToSocket(0), |
322 | mayUseConnection_ (false), | |
323 | connRegistered_ (false) | |
324 | { | |
325 | memset (reqbuf, '\0', sizeof (reqbuf)); | |
326 | flags.deferred = 0; | |
327 | flags.parsed_ok = 0; | |
328 | deferredparams.node = NULL; | |
329 | deferredparams.rep = NULL; | |
f88bb09c | 330 | } |
331 | ||
528b2c61 | 332 | ClientSocketContext * |
59a1efb2 | 333 | ClientSocketContextNew(ClientHttpRequest * http) |
f88bb09c | 334 | { |
528b2c61 | 335 | ClientSocketContext *newContext; |
edce4d98 | 336 | assert(http != NULL); |
0655fa4d | 337 | newContext = new ClientSocketContext; |
c8be6d7b | 338 | newContext->http = http; |
339 | return newContext; | |
4d55827a | 340 | } |
341 | ||
655daa06 AR |
342 | void |
343 | ClientSocketContext::writeControlMsg(HttpControlMsg &msg) | |
344 | { | |
345 | HttpReply *rep = msg.reply; | |
346 | Must(rep); | |
347 | ||
348 | // apply selected clientReplyContext::buildReplyHeader() mods | |
349 | // it is not clear what headers are required for control messages | |
350 | rep->header.removeHopByHopEntries(); | |
351 | rep->header.putStr(HDR_CONNECTION, "keep-alive"); | |
352 | httpHdrMangleList(&rep->header, http->request, ROR_REPLY); | |
353 | ||
354 | // remember the callback | |
355 | cbControlMsgSent = msg.cbSuccess; | |
356 | ||
357 | MemBuf *mb = rep->pack(); | |
358 | ||
359 | AsyncCall::Pointer call = commCbCall(33, 5, "ClientSocketContext::wroteControlMsg", | |
360 | CommIoCbPtrFun(&WroteControlMsg, this)); | |
361 | comm_write_mbuf(fd(), mb, call); | |
362 | ||
363 | delete mb; | |
364 | } | |
365 | ||
366 | /// called when we wrote the 1xx response | |
367 | void | |
368 | ClientSocketContext::wroteControlMsg(int fd, char *, size_t, comm_err_t errflag, int xerrno) | |
369 | { | |
370 | if (errflag == COMM_ERR_CLOSING) | |
371 | return; | |
372 | ||
373 | if (errflag == COMM_OK) { | |
374 | ScheduleCallHere(cbControlMsgSent); | |
375 | return; | |
376 | } | |
377 | ||
378 | debugs(33, 3, HERE << "1xx writing failed: " << xstrerr(xerrno)); | |
379 | // no error notification: see HttpControlMsg.h for rationale and | |
380 | // note that some errors are detected elsewhere (e.g., close handler) | |
381 | ||
382 | // close on 1xx errors to be conservative and to simplify the code | |
383 | // (if we do not close, we must notify the source of a failure!) | |
384 | comm_close(fd); | |
385 | } | |
386 | ||
387 | /// wroteControlMsg() wrapper: ClientSocketContext is not an AsyncJob | |
388 | void | |
389 | ClientSocketContext::WroteControlMsg(int fd, char *bufnotused, size_t size, comm_err_t errflag, int xerrno, void *data) | |
390 | { | |
391 | ClientSocketContext *context = static_cast<ClientSocketContext*>(data); | |
392 | context->wroteControlMsg(fd, bufnotused, size, errflag, xerrno); | |
393 | } | |
394 | ||
edce4d98 | 395 | #if USE_IDENT |
4d55827a | 396 | static void |
edce4d98 | 397 | clientIdentDone(const char *ident, void *data) |
4d55827a | 398 | { |
cc59d02a | 399 | ConnStateData *conn = (ConnStateData *)data; |
edce4d98 | 400 | xstrncpy(conn->rfc931, ident ? ident : dash_str, USER_IDENT_SZ); |
e81957b7 | 401 | } |
447e176b | 402 | #endif |
7a2f978b | 403 | |
c8be6d7b | 404 | void |
405 | clientUpdateStatCounters(log_type logType) | |
a7c05555 | 406 | { |
83704487 | 407 | statCounter.client_http.requests++; |
62e76326 | 408 | |
c8be6d7b | 409 | if (logTypeIsATcpHit(logType)) |
62e76326 | 410 | statCounter.client_http.hits++; |
411 | ||
c8be6d7b | 412 | if (logType == LOG_TCP_HIT) |
62e76326 | 413 | statCounter.client_http.disk_hits++; |
c8be6d7b | 414 | else if (logType == LOG_TCP_MEM_HIT) |
62e76326 | 415 | statCounter.client_http.mem_hits++; |
c8be6d7b | 416 | } |
417 | ||
418 | void | |
419 | clientUpdateStatHistCounters(log_type logType, int svc_time) | |
420 | { | |
83704487 | 421 | statHistCount(&statCounter.client_http.all_svc_time, svc_time); |
63be0a78 | 422 | /** |
ee1679df | 423 | * The idea here is not to be complete, but to get service times |
424 | * for only well-defined types. For example, we don't include | |
1d7ab0f4 | 425 | * LOG_TCP_REFRESH_FAIL because its not really a cache hit |
ee1679df | 426 | * (we *tried* to validate it, but failed). |
427 | */ | |
62e76326 | 428 | |
c8be6d7b | 429 | switch (logType) { |
62e76326 | 430 | |
1d7ab0f4 | 431 | case LOG_TCP_REFRESH_UNMODIFIED: |
62e76326 | 432 | statHistCount(&statCounter.client_http.nh_svc_time, svc_time); |
433 | break; | |
434 | ||
ee1679df | 435 | case LOG_TCP_IMS_HIT: |
62e76326 | 436 | statHistCount(&statCounter.client_http.nm_svc_time, svc_time); |
437 | break; | |
438 | ||
ee1679df | 439 | case LOG_TCP_HIT: |
62e76326 | 440 | |
ee1679df | 441 | case LOG_TCP_MEM_HIT: |
62e76326 | 442 | |
b540e168 | 443 | case LOG_TCP_OFFLINE_HIT: |
62e76326 | 444 | statHistCount(&statCounter.client_http.hit_svc_time, svc_time); |
445 | break; | |
446 | ||
ee1679df | 447 | case LOG_TCP_MISS: |
62e76326 | 448 | |
ee1679df | 449 | case LOG_TCP_CLIENT_REFRESH_MISS: |
62e76326 | 450 | statHistCount(&statCounter.client_http.miss_svc_time, svc_time); |
451 | break; | |
452 | ||
ee1679df | 453 | default: |
62e76326 | 454 | /* make compiler warnings go away */ |
455 | break; | |
ee1679df | 456 | } |
c8be6d7b | 457 | } |
458 | ||
528b2c61 | 459 | bool |
c8be6d7b | 460 | clientPingHasFinished(ping_data const *aPing) |
461 | { | |
462 | if (0 != aPing->stop.tv_sec && 0 != aPing->start.tv_sec) | |
62e76326 | 463 | return true; |
464 | ||
528b2c61 | 465 | return false; |
c8be6d7b | 466 | } |
467 | ||
468 | void | |
469 | clientUpdateHierCounters(HierarchyLogEntry * someEntry) | |
470 | { | |
471 | ping_data *i; | |
62e76326 | 472 | |
c8547a11 | 473 | switch (someEntry->code) { |
474 | #if USE_CACHE_DIGESTS | |
62e76326 | 475 | |
c8547a11 | 476 | case CD_PARENT_HIT: |
62e76326 | 477 | |
a196e1e4 | 478 | case CD_SIBLING_HIT: |
62e76326 | 479 | statCounter.cd.times_used++; |
480 | break; | |
c8547a11 | 481 | #endif |
62e76326 | 482 | |
c8547a11 | 483 | case SIBLING_HIT: |
62e76326 | 484 | |
c8547a11 | 485 | case PARENT_HIT: |
62e76326 | 486 | |
c8547a11 | 487 | case FIRST_PARENT_MISS: |
62e76326 | 488 | |
c8547a11 | 489 | case CLOSEST_PARENT_MISS: |
62e76326 | 490 | statCounter.icp.times_used++; |
491 | i = &someEntry->ping; | |
492 | ||
493 | if (clientPingHasFinished(i)) | |
494 | statHistCount(&statCounter.icp.query_svc_time, | |
495 | tvSubUsec(i->start, i->stop)); | |
496 | ||
497 | if (i->timeout) | |
498 | statCounter.icp.query_timeouts++; | |
499 | ||
500 | break; | |
501 | ||
c8547a11 | 502 | case CLOSEST_PARENT: |
62e76326 | 503 | |
c8547a11 | 504 | case CLOSEST_DIRECT: |
62e76326 | 505 | statCounter.netdb.times_used++; |
506 | ||
507 | break; | |
508 | ||
69c95dd3 | 509 | default: |
62e76326 | 510 | break; |
17b6e784 | 511 | } |
a7c05555 | 512 | } |
513 | ||
528b2c61 | 514 | void |
515 | ClientHttpRequest::updateCounters() | |
c8be6d7b | 516 | { |
528b2c61 | 517 | clientUpdateStatCounters(logType); |
62e76326 | 518 | |
528b2c61 | 519 | if (request->errType != ERR_NONE) |
62e76326 | 520 | statCounter.client_http.errors++; |
521 | ||
528b2c61 | 522 | clientUpdateStatHistCounters(logType, |
1cf238db | 523 | tvSubMsec(start_time, current_time)); |
62e76326 | 524 | |
528b2c61 | 525 | clientUpdateHierCounters(&request->hier); |
c8be6d7b | 526 | } |
527 | ||
edce4d98 | 528 | void |
3ff65596 | 529 | prepareLogWithRequestDetails(HttpRequest * request, AccessLogEntry * aLogEntry) |
7a2f978b | 530 | { |
c8be6d7b | 531 | assert(request); |
532 | assert(aLogEntry); | |
7684c4b1 | 533 | |
e1381638 | 534 | #if ICAP_CLIENT |
3ff65596 AR |
535 | Adaptation::Icap::History::Pointer ih = request->icapHistory(); |
536 | #endif | |
7684c4b1 | 537 | if (Config.onoff.log_mime_hdrs) { |
538 | Packer p; | |
539 | MemBuf mb; | |
2fe7eff9 | 540 | mb.init(); |
7684c4b1 | 541 | packerToMemInit(&p, &mb); |
a9925b40 | 542 | request->header.packInto(&p); |
105d1937 A |
543 | //This is the request after adaptation or redirection |
544 | aLogEntry->headers.adapted_request = xstrdup(mb.buf); | |
545 | ||
546 | // the virgin request is saved to aLogEntry->request | |
547 | if (aLogEntry->request) { | |
548 | packerClean(&p); | |
549 | mb.reset(); | |
550 | packerToMemInit(&p, &mb); | |
551 | aLogEntry->request->header.packInto(&p); | |
552 | aLogEntry->headers.request = xstrdup(mb.buf); | |
553 | } | |
3ff65596 AR |
554 | |
555 | #if ICAP_CLIENT | |
556 | packerClean(&p); | |
557 | mb.reset(); | |
558 | packerToMemInit(&p, &mb); | |
559 | ||
560 | if (ih != NULL) | |
561 | ih->lastIcapHeader.packInto(&p); | |
562 | aLogEntry->headers.icap = xstrdup(mb.buf); | |
563 | #endif | |
564 | ||
7684c4b1 | 565 | packerClean(&p); |
2fe7eff9 | 566 | mb.clean(); |
7684c4b1 | 567 | } |
568 | ||
3ff65596 AR |
569 | #if ICAP_CLIENT |
570 | if (ih != NULL) | |
571 | aLogEntry->icap.processingTime = ih->processingTime(); | |
572 | #endif | |
573 | ||
c8be6d7b | 574 | aLogEntry->http.method = request->method; |
575 | aLogEntry->http.version = request->http_ver; | |
c8be6d7b | 576 | aLogEntry->hier = request->hier; |
3ff65596 AR |
577 | if (request->content_length > 0) // negative when no body or unknown length |
578 | aLogEntry->cache.requestSize += request->content_length; | |
5b4117d8 | 579 | aLogEntry->cache.extuser = request->extacl_user.termedBuf(); |
abb929f0 | 580 | |
a33a428a | 581 | if (request->auth_user_request != NULL) { |
f5691f9c | 582 | |
583 | if (request->auth_user_request->username()) | |
a33a428a | 584 | aLogEntry->cache.authuser = xstrdup(request->auth_user_request->username()); |
f5292c64 | 585 | |
ea0695f2 | 586 | // WTF?? request->auth_user_request = NULL; |
7a2f978b | 587 | } |
c8be6d7b | 588 | } |
589 | ||
590 | void | |
528b2c61 | 591 | ClientHttpRequest::logRequest() |
592 | { | |
593 | if (out.size || logType) { | |
62e76326 | 594 | al.icp.opcode = ICP_INVALID; |
595 | al.url = log_uri; | |
bf8fe701 | 596 | debugs(33, 9, "clientLogRequest: al.url='" << al.url << "'"); |
62e76326 | 597 | |
90a8964c | 598 | if (al.reply) { |
599 | al.http.code = al.reply->sline.status; | |
5b4117d8 | 600 | al.http.content_type = al.reply->content_type.termedBuf(); |
90a8964c | 601 | } else if (loggingEntry() && loggingEntry()->mem_obj) { |
0976f8db | 602 | al.http.code = loggingEntry()->mem_obj->getReply()->sline.status; |
bb790702 | 603 | al.http.content_type = loggingEntry()->mem_obj->getReply()->content_type.termedBuf(); |
62e76326 | 604 | } |
605 | ||
bf8fe701 | 606 | debugs(33, 9, "clientLogRequest: http.code='" << al.http.code << "'"); |
5f8252d2 | 607 | |
90a8964c | 608 | if (loggingEntry() && loggingEntry()->mem_obj) |
b37bde1e | 609 | al.cache.objectSize = loggingEntry()->contentLen(); |
90a8964c | 610 | |
cc192b50 | 611 | al.cache.caddr.SetNoAddr(); |
612 | ||
9e008dda | 613 | if (getConn() != NULL) al.cache.caddr = getConn()->log_addr; |
90a8964c | 614 | |
1a86db31 | 615 | al.cache.requestSize = req_sz; |
3ff65596 | 616 | al.cache.requestHeadersSize = req_sz; |
1a86db31 AJ |
617 | |
618 | al.cache.replySize = out.size; | |
3ff65596 | 619 | al.cache.replyHeadersSize = out.headers_sz; |
90a8964c | 620 | |
0976f8db | 621 | al.cache.highOffset = out.offset; |
90a8964c | 622 | |
62e76326 | 623 | al.cache.code = logType; |
90a8964c | 624 | |
1cf238db | 625 | al.cache.msec = tvSubMsec(start_time, current_time); |
62e76326 | 626 | |
627 | if (request) | |
3ff65596 | 628 | prepareLogWithRequestDetails(request, &al); |
62e76326 | 629 | |
94a396a3 | 630 | if (getConn() != NULL && getConn()->rfc931[0]) |
98242069 | 631 | al.cache.rfc931 = getConn()->rfc931; |
62e76326 | 632 | |
2ea1afad | 633 | #if USE_SSL && 0 |
62e76326 | 634 | |
9e008dda AJ |
635 | /* This is broken. Fails if the connection has been closed. Needs |
636 | * to snarf the ssl details some place earlier.. | |
637 | */ | |
94a396a3 | 638 | if (getConn() != NULL) |
98242069 | 639 | al.cache.ssluser = sslGetUserEmail(fd_table[getConn()->fd].ssl); |
62e76326 | 640 | |
a7ad6e4e | 641 | #endif |
62e76326 | 642 | |
c0941a6a | 643 | ACLFilledChecklist *checklist = clientAclChecklistCreate(Config.accessList.log, this); |
62e76326 | 644 | |
fe74b6a6 | 645 | if (al.reply) |
646 | checklist->reply = HTTPMSGLOCK(al.reply); | |
62e76326 | 647 | |
b448c119 | 648 | if (!Config.accessList.log || checklist->fastCheck()) { |
af6a12ee | 649 | if (request) |
6fca33e0 | 650 | al.adapted_request = HTTPMSGLOCK(request); |
7684c4b1 | 651 | accessLogLog(&al, checklist); |
652 | updateCounters(); | |
62e76326 | 653 | |
94a396a3 | 654 | if (getConn() != NULL) |
cc192b50 | 655 | clientdbUpdate(getConn()->peer, logType, PROTO_HTTP, out.size); |
7684c4b1 | 656 | } |
657 | ||
658 | delete checklist; | |
7a2f978b | 659 | } |
2a6ab636 AR |
660 | |
661 | accessLogFreeMemory(&al); | |
c8be6d7b | 662 | } |
663 | ||
664 | void | |
528b2c61 | 665 | ClientHttpRequest::freeResources() |
c8be6d7b | 666 | { |
528b2c61 | 667 | safe_free(uri); |
668 | safe_free(log_uri); | |
669 | safe_free(redirect.location); | |
30abd221 | 670 | range_iter.boundary.clean(); |
6dd9f4bd | 671 | HTTPMSGUNLOCK(request); |
62e76326 | 672 | |
528b2c61 | 673 | if (client_stream.tail) |
62e76326 | 674 | clientStreamAbort((clientStreamNode *)client_stream.tail->data, this); |
c8be6d7b | 675 | } |
676 | ||
677 | void | |
678 | httpRequestFree(void *data) | |
679 | { | |
59a1efb2 | 680 | ClientHttpRequest *http = (ClientHttpRequest *)data; |
c8be6d7b | 681 | assert(http != NULL); |
528b2c61 | 682 | delete http; |
7a2f978b | 683 | } |
684 | ||
a46d2c0e | 685 | bool |
686 | ConnStateData::areAllContextsForThisConnection() const | |
c8be6d7b | 687 | { |
a46d2c0e | 688 | assert(this != NULL); |
0655fa4d | 689 | ClientSocketContext::Pointer context = getCurrentContext(); |
62e76326 | 690 | |
0655fa4d | 691 | while (context.getRaw()) { |
98242069 | 692 | if (context->http->getConn() != this) |
a46d2c0e | 693 | return false; |
62e76326 | 694 | |
695 | context = context->next; | |
c8be6d7b | 696 | } |
62e76326 | 697 | |
a46d2c0e | 698 | return true; |
c8be6d7b | 699 | } |
700 | ||
701 | void | |
a46d2c0e | 702 | ConnStateData::freeAllContexts() |
c8be6d7b | 703 | { |
0655fa4d | 704 | ClientSocketContext::Pointer context; |
62e76326 | 705 | |
c53577d9 | 706 | while ((context = getCurrentContext()).getRaw() != NULL) { |
0655fa4d | 707 | assert(getCurrentContext() != |
708 | getCurrentContext()->next); | |
709 | context->connIsFinished(); | |
710 | assert (context != currentobject); | |
c8be6d7b | 711 | } |
712 | } | |
713 | ||
f692498b AJ |
714 | /// propagates abort event to all contexts |
715 | void | |
716 | ConnStateData::notifyAllContexts(int xerrno) | |
717 | { | |
718 | typedef ClientSocketContext::Pointer CSCP; | |
719 | for (CSCP c = getCurrentContext(); c.getRaw(); c = c->next) | |
720 | c->noteIoError(xerrno); | |
721 | } | |
722 | ||
7a2f978b | 723 | /* This is a handler normally called by comm_close() */ |
1cf238db | 724 | void ConnStateData::connStateClosed(const CommCloseCbParams &io) |
7a2f978b | 725 | { |
1cf238db | 726 | assert (fd == io.fd); |
6e1d409c | 727 | deleteThis("ConnStateData::connStateClosed"); |
a46d2c0e | 728 | } |
62e76326 | 729 | |
6e1d409c | 730 | // cleans up before destructor is called |
a2ac85d9 | 731 | void |
6e1d409c | 732 | ConnStateData::swanSong() |
a46d2c0e | 733 | { |
6e1d409c | 734 | debugs(33, 2, "ConnStateData::swanSong: FD " << fd); |
2e216b1d | 735 | fd = -1; |
736 | flags.readMoreRequests = false; | |
cc192b50 | 737 | clientdbEstablished(peer, -1); /* decrement */ |
a46d2c0e | 738 | assert(areAllContextsForThisConnection()); |
739 | freeAllContexts(); | |
f5691f9c | 740 | |
6bf4f823 | 741 | if (auth_user_request != NULL) { |
6e1d409c | 742 | debugs(33, 4, "ConnStateData::swanSong: freeing auth_user_request '" << auth_user_request << "' (this is '" << this << "')"); |
f5691f9c | 743 | auth_user_request->onConnectionClose(this); |
6bf4f823 | 744 | } |
6e1d409c | 745 | |
d67acb4e | 746 | if (pinning.fd >= 0) |
9e008dda | 747 | comm_close(pinning.fd); |
d67acb4e | 748 | |
6e1d409c AR |
749 | BodyProducer::swanSong(); |
750 | flags.swanSang = true; | |
a2ac85d9 | 751 | } |
752 | ||
753 | bool | |
754 | ConnStateData::isOpen() const | |
755 | { | |
10b06767 | 756 | return cbdataReferenceValid(this) && // XXX: checking "this" in a method |
9e008dda AJ |
757 | fd >= 0 && |
758 | !fd_table[fd].closing(); | |
a2ac85d9 | 759 | } |
760 | ||
761 | ConnStateData::~ConnStateData() | |
762 | { | |
763 | assert(this != NULL); | |
bf8fe701 | 764 | debugs(33, 3, "ConnStateData::~ConnStateData: FD " << fd); |
a2ac85d9 | 765 | |
766 | if (isOpen()) | |
6e1d409c AR |
767 | debugs(33, 1, "BUG: ConnStateData did not close FD " << fd); |
768 | ||
769 | if (!flags.swanSang) | |
770 | debugs(33, 1, "BUG: ConnStateData was not destroyed properly; FD " << fd); | |
62e76326 | 771 | |
e0db3481 | 772 | cbdataReferenceDone(port); |
83fdd41a | 773 | |
279152e7 AJ |
774 | if (bodyPipe != NULL) |
775 | stopProducingFor(bodyPipe, false); | |
7a2f978b | 776 | } |
777 | ||
63be0a78 | 778 | /** |
c68e9c6b | 779 | * clientSetKeepaliveFlag() sets request->flags.proxy_keepalive. |
780 | * This is the client-side persistent connection flag. We need | |
781 | * to set this relatively early in the request processing | |
782 | * to handle hacks for broken servers and clients. | |
783 | */ | |
784 | static void | |
59a1efb2 | 785 | clientSetKeepaliveFlag(ClientHttpRequest * http) |
c68e9c6b | 786 | { |
190154cf | 787 | HttpRequest *request = http->request; |
f6329bc3 | 788 | |
bf8fe701 | 789 | debugs(33, 3, "clientSetKeepaliveFlag: http_ver = " << |
790 | request->http_ver.major << "." << request->http_ver.minor); | |
791 | debugs(33, 3, "clientSetKeepaliveFlag: method = " << | |
60745f24 | 792 | RequestMethodStr(request->method)); |
62e76326 | 793 | |
4a1acc56 AJ |
794 | // TODO: move to HttpRequest::hdrCacheInit, just like HttpReply. |
795 | request->flags.proxy_keepalive = request->persistent() ? 1 : 0; | |
c68e9c6b | 796 | } |
797 | ||
31be8b80 | 798 | static int |
190154cf | 799 | clientIsContentLengthValid(HttpRequest * r) |
31be8b80 | 800 | { |
914b89a2 | 801 | switch (r->method.id()) { |
62e76326 | 802 | |
ffc128c4 | 803 | case METHOD_PUT: |
62e76326 | 804 | |
ffc128c4 | 805 | case METHOD_POST: |
62e76326 | 806 | /* PUT/POST requires a request entity */ |
807 | return (r->content_length >= 0); | |
808 | ||
ffc128c4 | 809 | case METHOD_GET: |
62e76326 | 810 | |
ffc128c4 | 811 | case METHOD_HEAD: |
62e76326 | 812 | /* We do not want to see a request entity on GET/HEAD requests */ |
813 | return (r->content_length <= 0 || Config.onoff.request_entities); | |
814 | ||
ffc128c4 | 815 | default: |
62e76326 | 816 | /* For other types of requests we don't care */ |
817 | return 1; | |
ffc128c4 | 818 | } |
62e76326 | 819 | |
ffc128c4 | 820 | /* NOT REACHED */ |
31be8b80 | 821 | } |
822 | ||
c8be6d7b | 823 | int |
47f6e231 | 824 | clientIsRequestBodyTooLargeForPolicy(int64_t bodyLength) |
efd900cb | 825 | { |
c8be6d7b | 826 | if (Config.maxRequestBodySize && |
62e76326 | 827 | bodyLength > Config.maxRequestBodySize) |
828 | return 1; /* too large */ | |
829 | ||
efd900cb | 830 | return 0; |
831 | } | |
832 | ||
e4a67a80 | 833 | #ifndef PURIFY |
c8be6d7b | 834 | int |
1cf238db | 835 | connIsUsable(ConnStateData * conn) |
c8be6d7b | 836 | { |
1cf238db | 837 | if (conn == NULL || !cbdataReferenceValid(conn) || conn->fd == -1) |
62e76326 | 838 | return 0; |
839 | ||
c8be6d7b | 840 | return 1; |
841 | } | |
842 | ||
e4a67a80 | 843 | #endif |
844 | ||
39cb8c41 | 845 | // careful: the "current" context may be gone if we wrote an early response |
0655fa4d | 846 | ClientSocketContext::Pointer |
847 | ConnStateData::getCurrentContext() const | |
c8be6d7b | 848 | { |
0655fa4d | 849 | assert(this); |
850 | return currentobject; | |
c8be6d7b | 851 | } |
852 | ||
853 | void | |
2324cda2 | 854 | ClientSocketContext::deferRecipientForLater(clientStreamNode * node, HttpReply * rep, StoreIOBuffer receivedData) |
528b2c61 | 855 | { |
bf8fe701 | 856 | debugs(33, 2, "clientSocketRecipient: Deferring request " << http->uri); |
528b2c61 | 857 | assert(flags.deferred == 0); |
858 | flags.deferred = 1; | |
859 | deferredparams.node = node; | |
860 | deferredparams.rep = rep; | |
2324cda2 | 861 | deferredparams.queuedBuffer = receivedData; |
c8be6d7b | 862 | return; |
863 | } | |
864 | ||
865 | int | |
2324cda2 | 866 | responseFinishedOrFailed(HttpReply * rep, StoreIOBuffer const & receivedData) |
c8be6d7b | 867 | { |
2324cda2 | 868 | if (rep == NULL && receivedData.data == NULL && receivedData.length == 0) |
62e76326 | 869 | return 1; |
870 | ||
c8be6d7b | 871 | return 0; |
872 | } | |
873 | ||
0655fa4d | 874 | bool |
875 | ClientSocketContext::startOfOutput() const | |
c8be6d7b | 876 | { |
0655fa4d | 877 | return http->out.size == 0; |
c8be6d7b | 878 | } |
879 | ||
528b2c61 | 880 | size_t |
47f6e231 | 881 | ClientSocketContext::lengthToSend(Range<int64_t> const &available) |
528b2c61 | 882 | { |
47f6e231 | 883 | /*the size of available range can always fit in a size_t type*/ |
884 | size_t maximum = (size_t)available.size(); | |
2512d159 | 885 | |
528b2c61 | 886 | if (!http->request->range) |
62e76326 | 887 | return maximum; |
888 | ||
528b2c61 | 889 | assert (canPackMoreRanges()); |
62e76326 | 890 | |
528b2c61 | 891 | if (http->range_iter.debt() == -1) |
62e76326 | 892 | return maximum; |
893 | ||
528b2c61 | 894 | assert (http->range_iter.debt() > 0); |
62e76326 | 895 | |
2512d159 | 896 | /* TODO this + the last line could be a range intersection calculation */ |
47f6e231 | 897 | if (available.start < http->range_iter.currentSpec()->offset) |
2512d159 | 898 | return 0; |
899 | ||
d85c3078 | 900 | return min(http->range_iter.debt(), (int64_t)maximum); |
528b2c61 | 901 | } |
902 | ||
c8be6d7b | 903 | void |
528b2c61 | 904 | ClientSocketContext::noteSentBodyBytes(size_t bytes) |
905 | { | |
906 | http->out.offset += bytes; | |
62e76326 | 907 | |
528b2c61 | 908 | if (!http->request->range) |
62e76326 | 909 | return; |
910 | ||
528b2c61 | 911 | if (http->range_iter.debt() != -1) { |
62e76326 | 912 | http->range_iter.debt(http->range_iter.debt() - bytes); |
913 | assert (http->range_iter.debt() >= 0); | |
528b2c61 | 914 | } |
62e76326 | 915 | |
dd272b8e | 916 | /* debt() always stops at -1, below that is a bug */ |
917 | assert (http->range_iter.debt() >= -1); | |
528b2c61 | 918 | } |
62e76326 | 919 | |
528b2c61 | 920 | bool |
921 | ClientHttpRequest::multipartRangeRequest() const | |
922 | { | |
923 | return request->multipartRangeRequest(); | |
924 | } | |
925 | ||
926 | bool | |
927 | ClientSocketContext::multipartRangeRequest() const | |
928 | { | |
929 | return http->multipartRangeRequest(); | |
930 | } | |
931 | ||
932 | void | |
933 | ClientSocketContext::sendBody(HttpReply * rep, StoreIOBuffer bodyData) | |
c8be6d7b | 934 | { |
935 | assert(rep == NULL); | |
528b2c61 | 936 | |
4ad60609 | 937 | if (!multipartRangeRequest() && !http->request->flags.chunked_reply) { |
2512d159 | 938 | size_t length = lengthToSend(bodyData.range()); |
62e76326 | 939 | noteSentBodyBytes (length); |
9e008dda AJ |
940 | AsyncCall::Pointer call = commCbCall(33, 5, "clientWriteBodyComplete", |
941 | CommIoCbPtrFun(clientWriteBodyComplete, this)); | |
942 | comm_write(fd(), bodyData.data, length, call ); | |
62e76326 | 943 | return; |
528b2c61 | 944 | } |
945 | ||
946 | MemBuf mb; | |
2fe7eff9 | 947 | mb.init(); |
4ad60609 AR |
948 | if (multipartRangeRequest()) |
949 | packRange(bodyData, &mb); | |
950 | else | |
951 | packChunk(bodyData, mb); | |
2512d159 | 952 | |
9e008dda | 953 | if (mb.contentSize()) { |
2512d159 | 954 | /* write */ |
9e008dda AJ |
955 | AsyncCall::Pointer call = commCbCall(33, 5, "clientWriteComplete", |
956 | CommIoCbPtrFun(clientWriteComplete, this)); | |
957 | comm_write_mbuf(fd(), &mb, call); | |
1cf238db | 958 | } else |
2512d159 | 959 | writeComplete(fd(), NULL, 0, COMM_OK); |
c8be6d7b | 960 | } |
961 | ||
4ad60609 AR |
962 | /** |
963 | * Packs bodyData into mb using chunked encoding. Packs the last-chunk | |
964 | * if bodyData is empty. | |
965 | */ | |
966 | void | |
967 | ClientSocketContext::packChunk(const StoreIOBuffer &bodyData, MemBuf &mb) | |
968 | { | |
969 | const uint64_t length = | |
970 | static_cast<uint64_t>(lengthToSend(bodyData.range())); | |
971 | noteSentBodyBytes(length); | |
972 | ||
973 | mb.Printf("%"PRIX64"\r\n", length); | |
974 | mb.append(bodyData.data, length); | |
975 | mb.Printf("\r\n"); | |
976 | } | |
977 | ||
63be0a78 | 978 | /** put terminating boundary for multiparts */ |
528b2c61 | 979 | static void |
30abd221 | 980 | clientPackTermBound(String boundary, MemBuf * mb) |
528b2c61 | 981 | { |
826a1fed | 982 | mb->Printf("\r\n--" SQUIDSTRINGPH "--\r\n", SQUIDSTRINGPRINT(boundary)); |
4a7a3d56 | 983 | debugs(33, 6, "clientPackTermBound: buf offset: " << mb->size); |
528b2c61 | 984 | } |
985 | ||
63be0a78 | 986 | /** appends a "part" HTTP header (as in a multi-part/range reply) to the buffer */ |
528b2c61 | 987 | static void |
30abd221 | 988 | clientPackRangeHdr(const HttpReply * rep, const HttpHdrRangeSpec * spec, String boundary, MemBuf * mb) |
528b2c61 | 989 | { |
75faaa7a | 990 | HttpHeader hdr(hoReply); |
528b2c61 | 991 | Packer p; |
992 | assert(rep); | |
993 | assert(spec); | |
994 | ||
995 | /* put boundary */ | |
5b4117d8 | 996 | debugs(33, 5, "clientPackRangeHdr: appending boundary: " << boundary); |
528b2c61 | 997 | /* rfc2046 requires to _prepend_ boundary with <crlf>! */ |
826a1fed | 998 | mb->Printf("\r\n--" SQUIDSTRINGPH "\r\n", SQUIDSTRINGPRINT(boundary)); |
528b2c61 | 999 | |
1000 | /* stuff the header with required entries and pack it */ | |
62e76326 | 1001 | |
a9925b40 | 1002 | if (rep->header.has(HDR_CONTENT_TYPE)) |
1003 | hdr.putStr(HDR_CONTENT_TYPE, rep->header.getStr(HDR_CONTENT_TYPE)); | |
62e76326 | 1004 | |
528b2c61 | 1005 | httpHeaderAddContRange(&hdr, *spec, rep->content_length); |
62e76326 | 1006 | |
528b2c61 | 1007 | packerToMemInit(&p, mb); |
62e76326 | 1008 | |
a9925b40 | 1009 | hdr.packInto(&p); |
62e76326 | 1010 | |
528b2c61 | 1011 | packerClean(&p); |
62e76326 | 1012 | |
519e0948 | 1013 | hdr.clean(); |
528b2c61 | 1014 | |
1015 | /* append <crlf> (we packed a header, not a reply) */ | |
2fe7eff9 | 1016 | mb->Printf("\r\n"); |
528b2c61 | 1017 | } |
1018 | ||
63be0a78 | 1019 | /** |
bb790702 | 1020 | * extracts a "range" from *buf and appends them to mb, updating |
528b2c61 | 1021 | * all offsets and such. |
1022 | */ | |
c8be6d7b | 1023 | void |
2512d159 | 1024 | ClientSocketContext::packRange(StoreIOBuffer const &source, MemBuf * mb) |
528b2c61 | 1025 | { |
1026 | HttpHdrRangeIter * i = &http->range_iter; | |
47f6e231 | 1027 | Range<int64_t> available (source.range()); |
b65351fa | 1028 | char const *buf = source.data; |
62e76326 | 1029 | |
2512d159 | 1030 | while (i->currentSpec() && available.size()) { |
62e76326 | 1031 | const size_t copy_sz = lengthToSend(available); |
62e76326 | 1032 | |
2512d159 | 1033 | if (copy_sz) { |
1034 | /* | |
1035 | * intersection of "have" and "need" ranges must not be empty | |
1036 | */ | |
1037 | assert(http->out.offset < i->currentSpec()->offset + i->currentSpec()->length); | |
ed013b6c | 1038 | assert(http->out.offset + available.size() > i->currentSpec()->offset); |
2512d159 | 1039 | |
1040 | /* | |
1041 | * put boundary and headers at the beginning of a range in a | |
1042 | * multi-range | |
1043 | */ | |
1044 | ||
1045 | if (http->multipartRangeRequest() && i->debt() == i->currentSpec()->length) { | |
1046 | assert(http->memObject()); | |
1047 | clientPackRangeHdr( | |
1048 | http->memObject()->getReply(), /* original reply */ | |
1049 | i->currentSpec(), /* current range */ | |
1050 | i->boundary, /* boundary, the same for all */ | |
1051 | mb); | |
1052 | } | |
62e76326 | 1053 | |
2512d159 | 1054 | /* |
1055 | * append content | |
1056 | */ | |
4a7a3d56 | 1057 | debugs(33, 3, "clientPackRange: appending " << copy_sz << " bytes"); |
62e76326 | 1058 | |
2512d159 | 1059 | noteSentBodyBytes (copy_sz); |
62e76326 | 1060 | |
2fe7eff9 | 1061 | mb->append(buf, copy_sz); |
62e76326 | 1062 | |
2512d159 | 1063 | /* |
1064 | * update offsets | |
1065 | */ | |
1066 | available.start += copy_sz; | |
62e76326 | 1067 | |
2512d159 | 1068 | buf += copy_sz; |
62e76326 | 1069 | |
2512d159 | 1070 | } |
62e76326 | 1071 | |
1072 | /* | |
1073 | * paranoid check | |
1074 | */ | |
871899ca | 1075 | assert((available.size() >= 0 && i->debt() >= 0) || i->debt() == -1); |
62e76326 | 1076 | |
c7329b75 | 1077 | if (!canPackMoreRanges()) { |
bf8fe701 | 1078 | debugs(33, 3, "clientPackRange: Returning because !canPackMoreRanges."); |
c7329b75 | 1079 | |
1080 | if (i->debt() == 0) | |
1081 | /* put terminating boundary for multiparts */ | |
1082 | clientPackTermBound(i->boundary, mb); | |
62e76326 | 1083 | |
62e76326 | 1084 | return; |
c7329b75 | 1085 | } |
62e76326 | 1086 | |
8bcf08e0 | 1087 | int64_t nextOffset = getNextRangeOffset(); |
62e76326 | 1088 | |
8bcf08e0 | 1089 | assert (nextOffset >= http->out.offset); |
62e76326 | 1090 | |
8bcf08e0 | 1091 | int64_t skip = nextOffset - http->out.offset; |
62e76326 | 1092 | |
2512d159 | 1093 | /* adjust for not to be transmitted bytes */ |
8bcf08e0 | 1094 | http->out.offset = nextOffset; |
2512d159 | 1095 | |
1096 | if (available.size() <= skip) | |
62e76326 | 1097 | return; |
1098 | ||
2512d159 | 1099 | available.start += skip; |
62e76326 | 1100 | |
2512d159 | 1101 | buf += skip; |
1102 | ||
1103 | if (copy_sz == 0) | |
1104 | return; | |
528b2c61 | 1105 | } |
1106 | } | |
1107 | ||
63be0a78 | 1108 | /** returns expected content length for multi-range replies |
528b2c61 | 1109 | * note: assumes that httpHdrRangeCanonize has already been called |
1110 | * warning: assumes that HTTP headers for individual ranges at the | |
1111 | * time of the actuall assembly will be exactly the same as | |
1112 | * the headers when clientMRangeCLen() is called */ | |
1113 | int | |
1114 | ClientHttpRequest::mRangeCLen() | |
c8be6d7b | 1115 | { |
47f6e231 | 1116 | int64_t clen = 0; |
c8be6d7b | 1117 | MemBuf mb; |
528b2c61 | 1118 | |
86a2f789 | 1119 | assert(memObject()); |
528b2c61 | 1120 | |
2fe7eff9 | 1121 | mb.init(); |
528b2c61 | 1122 | HttpHdrRange::iterator pos = request->range->begin(); |
62e76326 | 1123 | |
528b2c61 | 1124 | while (pos != request->range->end()) { |
62e76326 | 1125 | /* account for headers for this range */ |
2fe7eff9 | 1126 | mb.reset(); |
86a2f789 | 1127 | clientPackRangeHdr(memObject()->getReply(), |
62e76326 | 1128 | *pos, range_iter.boundary, &mb); |
1129 | clen += mb.size; | |
528b2c61 | 1130 | |
62e76326 | 1131 | /* account for range content */ |
1132 | clen += (*pos)->length; | |
528b2c61 | 1133 | |
4a7a3d56 | 1134 | debugs(33, 6, "clientMRangeCLen: (clen += " << mb.size << " + " << (*pos)->length << ") == " << clen); |
62e76326 | 1135 | ++pos; |
528b2c61 | 1136 | } |
62e76326 | 1137 | |
528b2c61 | 1138 | /* account for the terminating boundary */ |
2fe7eff9 | 1139 | mb.reset(); |
62e76326 | 1140 | |
528b2c61 | 1141 | clientPackTermBound(range_iter.boundary, &mb); |
62e76326 | 1142 | |
528b2c61 | 1143 | clen += mb.size; |
1144 | ||
2fe7eff9 | 1145 | mb.clean(); |
62e76326 | 1146 | |
528b2c61 | 1147 | return clen; |
1148 | } | |
1149 | ||
63be0a78 | 1150 | /** |
528b2c61 | 1151 | * returns true if If-Range specs match reply, false otherwise |
1152 | */ | |
1153 | static int | |
59a1efb2 | 1154 | clientIfRangeMatch(ClientHttpRequest * http, HttpReply * rep) |
528b2c61 | 1155 | { |
a9925b40 | 1156 | const TimeOrTag spec = http->request->header.getTimeOrTag(HDR_IF_RANGE); |
528b2c61 | 1157 | /* check for parsing falure */ |
62e76326 | 1158 | |
528b2c61 | 1159 | if (!spec.valid) |
62e76326 | 1160 | return 0; |
1161 | ||
528b2c61 | 1162 | /* got an ETag? */ |
1163 | if (spec.tag.str) { | |
a9925b40 | 1164 | ETag rep_tag = rep->header.getETag(HDR_ETAG); |
bf8fe701 | 1165 | debugs(33, 3, "clientIfRangeMatch: ETags: " << spec.tag.str << " and " << |
1166 | (rep_tag.str ? rep_tag.str : "<none>")); | |
62e76326 | 1167 | |
1168 | if (!rep_tag.str) | |
1169 | return 0; /* entity has no etag to compare with! */ | |
1170 | ||
1171 | if (spec.tag.weak || rep_tag.weak) { | |
bf8fe701 | 1172 | debugs(33, 1, "clientIfRangeMatch: Weak ETags are not allowed in If-Range: " << spec.tag.str << " ? " << rep_tag.str); |
62e76326 | 1173 | return 0; /* must use strong validator for sub-range requests */ |
1174 | } | |
1175 | ||
bd76482d | 1176 | return etagIsStrongEqual(rep_tag, spec.tag); |
528b2c61 | 1177 | } |
62e76326 | 1178 | |
528b2c61 | 1179 | /* got modification time? */ |
1180 | if (spec.time >= 0) { | |
86a2f789 | 1181 | return http->storeEntry()->lastmod <= spec.time; |
528b2c61 | 1182 | } |
62e76326 | 1183 | |
528b2c61 | 1184 | assert(0); /* should not happen */ |
1185 | return 0; | |
1186 | } | |
1187 | ||
63be0a78 | 1188 | /** |
1189 | * generates a "unique" boundary string for multipart responses | |
528b2c61 | 1190 | * the caller is responsible for cleaning the string */ |
30abd221 | 1191 | String |
528b2c61 | 1192 | ClientHttpRequest::rangeBoundaryStr() const |
1193 | { | |
1194 | assert(this); | |
1195 | const char *key; | |
7dbca7a4 AJ |
1196 | String b(APP_FULLNAME); |
1197 | b.append(":",1); | |
86a2f789 | 1198 | key = storeEntry()->getMD5Text(); |
528b2c61 | 1199 | b.append(key, strlen(key)); |
1200 | return b; | |
1201 | } | |
1202 | ||
63be0a78 | 1203 | /** adds appropriate Range headers if needed */ |
528b2c61 | 1204 | void |
1205 | ClientSocketContext::buildRangeHeader(HttpReply * rep) | |
1206 | { | |
1207 | HttpHeader *hdr = rep ? &rep->header : 0; | |
1208 | const char *range_err = NULL; | |
190154cf | 1209 | HttpRequest *request = http->request; |
528b2c61 | 1210 | assert(request->range); |
1211 | /* check if we still want to do ranges */ | |
62e76326 | 1212 | |
11e3fa1c AJ |
1213 | int64_t roffLimit = request->getRangeOffsetLimit(); |
1214 | ||
528b2c61 | 1215 | if (!rep) |
62e76326 | 1216 | range_err = "no [parse-able] reply"; |
528b2c61 | 1217 | else if ((rep->sline.status != HTTP_OK) && (rep->sline.status != HTTP_PARTIAL_CONTENT)) |
62e76326 | 1218 | range_err = "wrong status code"; |
a9925b40 | 1219 | else if (hdr->has(HDR_CONTENT_RANGE)) |
62e76326 | 1220 | range_err = "origin server does ranges"; |
528b2c61 | 1221 | else if (rep->content_length < 0) |
62e76326 | 1222 | range_err = "unknown length"; |
86a2f789 | 1223 | else if (rep->content_length != http->memObject()->getReply()->content_length) |
62e76326 | 1224 | range_err = "INCONSISTENT length"; /* a bug? */ |
96cbbe03 | 1225 | |
1226 | /* hits only - upstream peer determines correct behaviour on misses, and client_side_reply determines | |
9e008dda | 1227 | * hits candidates |
96cbbe03 | 1228 | */ |
a9925b40 | 1229 | else if (logTypeIsATcpHit(http->logType) && http->request->header.has(HDR_IF_RANGE) && !clientIfRangeMatch(http, rep)) |
62e76326 | 1230 | range_err = "If-Range match failed"; |
528b2c61 | 1231 | else if (!http->request->range->canonize(rep)) |
62e76326 | 1232 | range_err = "canonization failed"; |
528b2c61 | 1233 | else if (http->request->range->isComplex()) |
62e76326 | 1234 | range_err = "too complex range header"; |
11e3fa1c | 1235 | else if (!logTypeIsATcpHit(http->logType) && http->request->range->offsetLimitExceeded(roffLimit)) |
62e76326 | 1236 | range_err = "range outside range_offset_limit"; |
1237 | ||
528b2c61 | 1238 | /* get rid of our range specs on error */ |
1239 | if (range_err) { | |
b631f31c | 1240 | /* XXX We do this here because we need canonisation etc. However, this current |
9e008dda | 1241 | * code will lead to incorrect store offset requests - the store will have the |
b631f31c | 1242 | * offset data, but we won't be requesting it. |
1243 | * So, we can either re-request, or generate an error | |
1244 | */ | |
bf8fe701 | 1245 | debugs(33, 3, "clientBuildRangeHeader: will not do ranges: " << range_err << "."); |
00d77d6b | 1246 | delete http->request->range; |
62e76326 | 1247 | http->request->range = NULL; |
c8be6d7b | 1248 | } else { |
3cff087f | 1249 | /* XXX: TODO: Review, this unconditional set may be wrong. - TODO: review. */ |
1250 | httpStatusLineSet(&rep->sline, rep->sline.version, | |
1251 | HTTP_PARTIAL_CONTENT, NULL); | |
fedd1531 | 1252 | // web server responded with a valid, but unexpected range. |
1253 | // will (try-to) forward as-is. | |
1254 | //TODO: we should cope with multirange request/responses | |
1255 | bool replyMatchRequest = rep->content_range != NULL ? | |
1256 | request->range->contains(rep->content_range->spec) : | |
1257 | true; | |
62e76326 | 1258 | const int spec_count = http->request->range->specs.count; |
47f6e231 | 1259 | int64_t actual_clen = -1; |
62e76326 | 1260 | |
47f6e231 | 1261 | debugs(33, 3, "clientBuildRangeHeader: range spec count: " << |
9e008dda | 1262 | spec_count << " virgin clen: " << rep->content_length); |
62e76326 | 1263 | assert(spec_count > 0); |
62e76326 | 1264 | /* append appropriate header(s) */ |
1265 | ||
1266 | if (spec_count == 1) { | |
fedd1531 | 1267 | if (!replyMatchRequest) { |
1268 | hdr->delById(HDR_CONTENT_RANGE); | |
1269 | hdr->putContRange(rep->content_range); | |
1270 | actual_clen = rep->content_length; | |
1271 | //http->range_iter.pos = rep->content_range->spec.begin(); | |
1272 | (*http->range_iter.pos)->offset = rep->content_range->spec.offset; | |
1273 | (*http->range_iter.pos)->length = rep->content_range->spec.length; | |
1274 | ||
1275 | } else { | |
1276 | HttpHdrRange::iterator pos = http->request->range->begin(); | |
1277 | assert(*pos); | |
1278 | /* append Content-Range */ | |
1279 | ||
1280 | if (!hdr->has(HDR_CONTENT_RANGE)) { | |
1281 | /* No content range, so this was a full object we are | |
1282 | * sending parts of. | |
1283 | */ | |
1284 | httpHeaderAddContRange(hdr, **pos, rep->content_length); | |
1285 | } | |
1286 | ||
1287 | /* set new Content-Length to the actual number of bytes | |
1288 | * transmitted in the message-body */ | |
1289 | actual_clen = (*pos)->length; | |
62e76326 | 1290 | } |
62e76326 | 1291 | } else { |
1292 | /* multipart! */ | |
1293 | /* generate boundary string */ | |
1294 | http->range_iter.boundary = http->rangeBoundaryStr(); | |
1295 | /* delete old Content-Type, add ours */ | |
a9925b40 | 1296 | hdr->delById(HDR_CONTENT_TYPE); |
62e76326 | 1297 | httpHeaderPutStrf(hdr, HDR_CONTENT_TYPE, |
826a1fed FC |
1298 | "multipart/byteranges; boundary=\"" SQUIDSTRINGPH "\"", |
1299 | SQUIDSTRINGPRINT(http->range_iter.boundary)); | |
62e76326 | 1300 | /* Content-Length is not required in multipart responses |
1301 | * but it is always nice to have one */ | |
1302 | actual_clen = http->mRangeCLen(); | |
2512d159 | 1303 | /* http->out needs to start where we want data at */ |
1304 | http->out.offset = http->range_iter.currentSpec()->offset; | |
62e76326 | 1305 | } |
1306 | ||
1307 | /* replace Content-Length header */ | |
1308 | assert(actual_clen >= 0); | |
1309 | ||
a9925b40 | 1310 | hdr->delById(HDR_CONTENT_LENGTH); |
62e76326 | 1311 | |
47f6e231 | 1312 | hdr->putInt64(HDR_CONTENT_LENGTH, actual_clen); |
62e76326 | 1313 | |
bf8fe701 | 1314 | debugs(33, 3, "clientBuildRangeHeader: actual content length: " << actual_clen); |
62e76326 | 1315 | |
1316 | /* And start the range iter off */ | |
1317 | http->range_iter.updateSpec(); | |
c8be6d7b | 1318 | } |
528b2c61 | 1319 | } |
1320 | ||
1321 | void | |
1322 | ClientSocketContext::prepareReply(HttpReply * rep) | |
1323 | { | |
fedd1531 | 1324 | reply = rep; |
1325 | ||
528b2c61 | 1326 | if (http->request->range) |
62e76326 | 1327 | buildRangeHeader(rep); |
528b2c61 | 1328 | } |
1329 | ||
1330 | void | |
1331 | ClientSocketContext::sendStartOfMessage(HttpReply * rep, StoreIOBuffer bodyData) | |
1332 | { | |
1333 | prepareReply(rep); | |
528b2c61 | 1334 | assert (rep); |
06a5ae20 | 1335 | MemBuf *mb = rep->pack(); |
528b2c61 | 1336 | /* Save length of headers for persistent conn checks */ |
032785bf | 1337 | http->out.headers_sz = mb->contentSize(); |
528b2c61 | 1338 | #if HEADERS_LOG |
62e76326 | 1339 | |
528b2c61 | 1340 | headersLog(0, 0, http->request->method, rep); |
1341 | #endif | |
62e76326 | 1342 | |
c8be6d7b | 1343 | if (bodyData.data && bodyData.length) { |
4ad60609 AR |
1344 | if (multipartRangeRequest()) |
1345 | packRange(bodyData, mb); | |
1346 | else if (http->request->flags.chunked_reply) { | |
1347 | packChunk(bodyData, *mb); | |
1348 | } else { | |
2512d159 | 1349 | size_t length = lengthToSend(bodyData.range()); |
62e76326 | 1350 | noteSentBodyBytes (length); |
1351 | ||
2fe7eff9 | 1352 | mb->append(bodyData.data, length); |
62e76326 | 1353 | } |
c8be6d7b | 1354 | } |
62e76326 | 1355 | |
c8be6d7b | 1356 | /* write */ |
425802c8 | 1357 | debugs(33,7, HERE << "sendStartOfMessage schedules clientWriteComplete"); |
9e008dda AJ |
1358 | AsyncCall::Pointer call = commCbCall(33, 5, "clientWriteComplete", |
1359 | CommIoCbPtrFun(clientWriteComplete, this)); | |
1cf238db | 1360 | comm_write_mbuf(fd(), mb, call); |
62e76326 | 1361 | |
032785bf | 1362 | delete mb; |
c8be6d7b | 1363 | } |
1364 | ||
63be0a78 | 1365 | /** |
7dc5f514 | 1366 | * Write a chunk of data to a client socket. If the reply is present, |
1367 | * send the reply headers down the wire too, and clean them up when | |
1368 | * finished. | |
9e008dda | 1369 | * Pre-condition: |
edce4d98 | 1370 | * The request is one backed by a connection, not an internal request. |
1371 | * data context is not NULL | |
1372 | * There are no more entries in the stream chain. | |
2246b732 | 1373 | */ |
edce4d98 | 1374 | static void |
59a1efb2 | 1375 | clientSocketRecipient(clientStreamNode * node, ClientHttpRequest * http, |
2324cda2 | 1376 | HttpReply * rep, StoreIOBuffer receivedData) |
edce4d98 | 1377 | { |
1378 | int fd; | |
edce4d98 | 1379 | /* Test preconditions */ |
1380 | assert(node != NULL); | |
559da936 | 1381 | PROF_start(clientSocketRecipient); |
62e76326 | 1382 | /* TODO: handle this rather than asserting |
9e008dda AJ |
1383 | * - it should only ever happen if we cause an abort and |
1384 | * the callback chain loops back to here, so we can simply return. | |
1385 | * However, that itself shouldn't happen, so it stays as an assert for now. | |
edce4d98 | 1386 | */ |
1387 | assert(cbdataReferenceValid(node)); | |
edce4d98 | 1388 | assert(node->node.next == NULL); |
0655fa4d | 1389 | ClientSocketContext::Pointer context = dynamic_cast<ClientSocketContext *>(node->data.getRaw()); |
94a396a3 | 1390 | assert(context != NULL); |
98242069 | 1391 | assert(connIsUsable(http->getConn())); |
1392 | fd = http->getConn()->fd; | |
528b2c61 | 1393 | /* TODO: check offset is what we asked for */ |
62e76326 | 1394 | |
98242069 | 1395 | if (context != http->getConn()->getCurrentContext()) { |
2324cda2 | 1396 | context->deferRecipientForLater(node, rep, receivedData); |
559da936 | 1397 | PROF_stop(clientSocketRecipient); |
62e76326 | 1398 | return; |
edce4d98 | 1399 | } |
62e76326 | 1400 | |
4ad60609 AR |
1401 | // After sending Transfer-Encoding: chunked (at least), always send |
1402 | // the last-chunk if there was no error, ignoring responseFinishedOrFailed. | |
1403 | const bool mustSendLastChunk = http->request->flags.chunked_reply && | |
4cb2536f | 1404 | !http->request->flags.stream_error && !context->startOfOutput(); |
4ad60609 | 1405 | if (responseFinishedOrFailed(rep, receivedData) && !mustSendLastChunk) { |
0655fa4d | 1406 | context->writeComplete(fd, NULL, 0, COMM_OK); |
559da936 | 1407 | PROF_stop(clientSocketRecipient); |
62e76326 | 1408 | return; |
edce4d98 | 1409 | } |
62e76326 | 1410 | |
0655fa4d | 1411 | if (!context->startOfOutput()) |
2324cda2 | 1412 | context->sendBody(rep, receivedData); |
7684c4b1 | 1413 | else { |
a4785954 | 1414 | assert(rep); |
90a8964c | 1415 | http->al.reply = HTTPMSGLOCK(rep); |
2324cda2 | 1416 | context->sendStartOfMessage(rep, receivedData); |
7684c4b1 | 1417 | } |
fc68f6b1 | 1418 | |
559da936 | 1419 | PROF_stop(clientSocketRecipient); |
edce4d98 | 1420 | } |
1421 | ||
63be0a78 | 1422 | /** |
1423 | * Called when a downstream node is no longer interested in | |
edce4d98 | 1424 | * our data. As we are a terminal node, this means on aborts |
1425 | * only | |
1426 | */ | |
1427 | void | |
59a1efb2 | 1428 | clientSocketDetach(clientStreamNode * node, ClientHttpRequest * http) |
edce4d98 | 1429 | { |
edce4d98 | 1430 | /* Test preconditions */ |
1431 | assert(node != NULL); | |
62e76326 | 1432 | /* TODO: handle this rather than asserting |
9e008dda AJ |
1433 | * - it should only ever happen if we cause an abort and |
1434 | * the callback chain loops back to here, so we can simply return. | |
edce4d98 | 1435 | * However, that itself shouldn't happen, so it stays as an assert for now. |
1436 | */ | |
1437 | assert(cbdataReferenceValid(node)); | |
1438 | /* Set null by ContextFree */ | |
edce4d98 | 1439 | assert(node->node.next == NULL); |
0655fa4d | 1440 | /* this is the assert discussed above */ |
e4a67a80 | 1441 | assert(NULL == dynamic_cast<ClientSocketContext *>(node->data.getRaw())); |
edce4d98 | 1442 | /* We are only called when the client socket shutsdown. |
1443 | * Tell the prev pipeline member we're finished | |
1444 | */ | |
1445 | clientStreamDetach(node, http); | |
7a2f978b | 1446 | } |
1447 | ||
f4f278b5 | 1448 | static void |
25f651c1 | 1449 | clientWriteBodyComplete(int fd, char *buf, size_t size, comm_err_t errflag, int xerrno, void *data) |
f4f278b5 | 1450 | { |
425802c8 | 1451 | debugs(33,7, HERE << "clientWriteBodyComplete schedules clientWriteComplete"); |
2b663917 | 1452 | clientWriteComplete(fd, NULL, size, errflag, xerrno, data); |
c8be6d7b | 1453 | } |
1454 | ||
1455 | void | |
a46d2c0e | 1456 | ConnStateData::readNextRequest() |
c8be6d7b | 1457 | { |
bf8fe701 | 1458 | debugs(33, 5, "ConnStateData::readNextRequest: FD " << fd << " reading next req"); |
1459 | ||
a46d2c0e | 1460 | fd_note(fd, "Waiting for next request"); |
63be0a78 | 1461 | /** |
c8be6d7b | 1462 | * Set the timeout BEFORE calling clientReadRequest(). |
1463 | */ | |
1cf238db | 1464 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 1465 | AsyncCall::Pointer timeoutCall = JobCallback(33, 5, |
4cb2536f | 1466 | TimeoutDialer, this, ConnStateData::requestTimeout); |
1cf238db | 1467 | commSetTimeout(fd, Config.Timeout.persistent_request, timeoutCall); |
1468 | ||
a46d2c0e | 1469 | readSomeData(); |
63be0a78 | 1470 | /** Please don't do anything with the FD past here! */ |
c8be6d7b | 1471 | } |
1472 | ||
09d3938c | 1473 | static void |
1cf238db | 1474 | ClientSocketContextPushDeferredIfNeeded(ClientSocketContext::Pointer deferredRequest, ConnStateData * conn) |
c8be6d7b | 1475 | { |
bf8fe701 | 1476 | debugs(33, 2, "ClientSocketContextPushDeferredIfNeeded: FD " << conn->fd << " Sending next"); |
1477 | ||
63be0a78 | 1478 | /** If the client stream is waiting on a socket write to occur, then */ |
62e76326 | 1479 | |
c8be6d7b | 1480 | if (deferredRequest->flags.deferred) { |
63be0a78 | 1481 | /** NO data is allowed to have been sent. */ |
62e76326 | 1482 | assert(deferredRequest->http->out.size == 0); |
63be0a78 | 1483 | /** defer now. */ |
62e76326 | 1484 | clientSocketRecipient(deferredRequest->deferredparams.node, |
1485 | deferredRequest->http, | |
1486 | deferredRequest->deferredparams.rep, | |
1487 | deferredRequest->deferredparams.queuedBuffer); | |
c8be6d7b | 1488 | } |
62e76326 | 1489 | |
63be0a78 | 1490 | /** otherwise, the request is still active in a callbacksomewhere, |
c8be6d7b | 1491 | * and we are done |
f4f278b5 | 1492 | */ |
f4f278b5 | 1493 | } |
1494 | ||
0655fa4d | 1495 | void |
1496 | ClientSocketContext::keepaliveNextRequest() | |
1a92a1e2 | 1497 | { |
1cf238db | 1498 | ConnStateData * conn = http->getConn(); |
f900210a | 1499 | bool do_next_read = false; |
bd4e6ec8 | 1500 | |
bf8fe701 | 1501 | debugs(33, 3, "ClientSocketContext::keepaliveNextRequest: FD " << conn->fd); |
0655fa4d | 1502 | connIsFinished(); |
1503 | ||
d67acb4e AJ |
1504 | if (conn->pinning.pinned && conn->pinning.fd == -1) { |
1505 | debugs(33, 2, "clientKeepaliveNextRequest: FD " << conn->fd << " Connection was pinned but server side gone. Terminating client connection"); | |
1506 | comm_close(conn->fd); | |
1507 | return; | |
1508 | } | |
1509 | ||
63be0a78 | 1510 | /** \par |
f900210a | 1511 | * Attempt to parse a request from the request buffer. |
1512 | * If we've been fed a pipelined request it may already | |
1513 | * be in our read buffer. | |
1514 | * | |
63be0a78 | 1515 | \par |
f900210a | 1516 | * This needs to fall through - if we're unlucky and parse the _last_ request |
1517 | * from our read buffer we may never re-register for another client read. | |
1518 | */ | |
1519 | ||
1520 | if (clientParseRequest(conn, do_next_read)) { | |
bf8fe701 | 1521 | debugs(33, 3, "clientSocketContext::keepaliveNextRequest: FD " << conn->fd << ": parsed next request from buffer"); |
f900210a | 1522 | } |
1523 | ||
63be0a78 | 1524 | /** \par |
f900210a | 1525 | * Either we need to kick-start another read or, if we have |
1526 | * a half-closed connection, kill it after the last request. | |
1527 | * This saves waiting for half-closed connections to finished being | |
1528 | * half-closed _AND_ then, sometimes, spending "Timeout" time in | |
1529 | * the keepalive "Waiting for next request" state. | |
1530 | */ | |
1531 | if (commIsHalfClosed(conn->fd) && (conn->getConcurrentRequestCount() == 0)) { | |
bf8fe701 | 1532 | debugs(33, 3, "ClientSocketContext::keepaliveNextRequest: half-closed client with no pending requests, closing"); |
f900210a | 1533 | comm_close(conn->fd); |
1534 | return; | |
1535 | } | |
1536 | ||
0655fa4d | 1537 | ClientSocketContext::Pointer deferredRequest; |
62e76326 | 1538 | |
63be0a78 | 1539 | /** \par |
f900210a | 1540 | * At this point we either have a parsed request (which we've |
1541 | * kicked off the processing for) or not. If we have a deferred | |
1542 | * request (parsed but deferred for pipeling processing reasons) | |
1543 | * then look at processing it. If not, simply kickstart | |
1544 | * another read. | |
1545 | */ | |
1546 | ||
1547 | if ((deferredRequest = conn->getCurrentContext()).getRaw()) { | |
bf8fe701 | 1548 | debugs(33, 3, "ClientSocketContext:: FD " << conn->fd << ": calling PushDeferredIfNeeded"); |
62e76326 | 1549 | ClientSocketContextPushDeferredIfNeeded(deferredRequest, conn); |
f900210a | 1550 | } else { |
bf8fe701 | 1551 | debugs(33, 3, "ClientSocketContext:: FD " << conn->fd << ": calling conn->readNextRequest()"); |
f900210a | 1552 | conn->readNextRequest(); |
1553 | } | |
1a92a1e2 | 1554 | } |
1555 | ||
c8be6d7b | 1556 | void |
1557 | clientUpdateSocketStats(log_type logType, size_t size) | |
1558 | { | |
1559 | if (size == 0) | |
62e76326 | 1560 | return; |
1561 | ||
c8be6d7b | 1562 | kb_incr(&statCounter.client_http.kbytes_out, size); |
62e76326 | 1563 | |
c8be6d7b | 1564 | if (logTypeIsATcpHit(logType)) |
62e76326 | 1565 | kb_incr(&statCounter.client_http.hit_kbytes_out, size); |
c8be6d7b | 1566 | } |
1567 | ||
63be0a78 | 1568 | /** |
528b2c61 | 1569 | * increments iterator "i" |
63be0a78 | 1570 | * used by clientPackMoreRanges |
1571 | * | |
1572 | \retval true there is still data available to pack more ranges | |
9e008dda | 1573 | \retval false |
63be0a78 | 1574 | */ |
528b2c61 | 1575 | bool |
1576 | ClientSocketContext::canPackMoreRanges() const | |
1577 | { | |
63be0a78 | 1578 | /** first update iterator "i" if needed */ |
62e76326 | 1579 | |
528b2c61 | 1580 | if (!http->range_iter.debt()) { |
63be0a78 | 1581 | debugs(33, 5, "ClientSocketContext::canPackMoreRanges: At end of current range spec for FD " << fd()); |
62e76326 | 1582 | |
1583 | if (http->range_iter.pos.incrementable()) | |
1584 | ++http->range_iter.pos; | |
1585 | ||
1586 | http->range_iter.updateSpec(); | |
528b2c61 | 1587 | } |
62e76326 | 1588 | |
528b2c61 | 1589 | assert(!http->range_iter.debt() == !http->range_iter.currentSpec()); |
63be0a78 | 1590 | |
528b2c61 | 1591 | /* paranoid sync condition */ |
1592 | /* continue condition: need_more_data */ | |
bf8fe701 | 1593 | debugs(33, 5, "ClientSocketContext::canPackMoreRanges: returning " << (http->range_iter.currentSpec() ? true : false)); |
528b2c61 | 1594 | return http->range_iter.currentSpec() ? true : false; |
1595 | } | |
1596 | ||
47f6e231 | 1597 | int64_t |
528b2c61 | 1598 | ClientSocketContext::getNextRangeOffset() const |
1599 | { | |
1600 | if (http->request->range) { | |
62e76326 | 1601 | /* offset in range specs does not count the prefix of an http msg */ |
47f6e231 | 1602 | debugs (33, 5, "ClientSocketContext::getNextRangeOffset: http offset " << http->out.offset); |
62e76326 | 1603 | /* check: reply was parsed and range iterator was initialized */ |
1604 | assert(http->range_iter.valid); | |
1605 | /* filter out data according to range specs */ | |
1606 | assert (canPackMoreRanges()); | |
1607 | { | |
47f6e231 | 1608 | int64_t start; /* offset of still missing data */ |
62e76326 | 1609 | assert(http->range_iter.currentSpec()); |
1610 | start = http->range_iter.currentSpec()->offset + http->range_iter.currentSpec()->length - http->range_iter.debt(); | |
47f6e231 | 1611 | debugs(33, 3, "clientPackMoreRanges: in: offset: " << http->out.offset); |
1612 | debugs(33, 3, "clientPackMoreRanges: out:" | |
9e008dda AJ |
1613 | " start: " << start << |
1614 | " spec[" << http->range_iter.pos - http->request->range->begin() << "]:" << | |
1615 | " [" << http->range_iter.currentSpec()->offset << | |
1616 | ", " << http->range_iter.currentSpec()->offset + http->range_iter.currentSpec()->length << ")," | |
1617 | " len: " << http->range_iter.currentSpec()->length << | |
1618 | " debt: " << http->range_iter.debt()); | |
62e76326 | 1619 | if (http->range_iter.currentSpec()->length != -1) |
1620 | assert(http->out.offset <= start); /* we did not miss it */ | |
1621 | ||
1622 | return start; | |
1623 | } | |
1624 | ||
fedd1531 | 1625 | } else if (reply && reply->content_range) { |
1626 | /* request does not have ranges, but reply does */ | |
63be0a78 | 1627 | /** \todo FIXME: should use range_iter_pos on reply, as soon as reply->content_range |
1628 | * becomes HttpHdrRange rather than HttpHdrRangeSpec. | |
1629 | */ | |
fedd1531 | 1630 | return http->out.offset + reply->content_range->spec.offset; |
528b2c61 | 1631 | } |
1632 | ||
1633 | return http->out.offset; | |
1634 | } | |
1635 | ||
c8be6d7b | 1636 | void |
528b2c61 | 1637 | ClientSocketContext::pullData() |
c8be6d7b | 1638 | { |
ec69c304 | 1639 | debugs(33, 5, "ClientSocketContext::pullData: FD " << fd() << |
9e008dda | 1640 | " attempting to pull upstream data"); |
bf8fe701 | 1641 | |
c8be6d7b | 1642 | /* More data will be coming from the stream. */ |
528b2c61 | 1643 | StoreIOBuffer readBuffer; |
1644 | /* XXX: Next requested byte in the range sequence */ | |
1645 | /* XXX: length = getmaximumrangelenfgth */ | |
1646 | readBuffer.offset = getNextRangeOffset(); | |
c8be6d7b | 1647 | readBuffer.length = HTTP_REQBUF_SZ; |
528b2c61 | 1648 | readBuffer.data = reqbuf; |
1649 | /* we may note we have reached the end of the wanted ranges */ | |
1650 | clientStreamRead(getTail(), http, readBuffer); | |
1651 | } | |
1652 | ||
62e76326 | 1653 | clientStream_status_t |
528b2c61 | 1654 | ClientSocketContext::socketState() |
1655 | { | |
1656 | switch (clientStreamStatus(getTail(), http)) { | |
62e76326 | 1657 | |
1658 | case STREAM_NONE: | |
528b2c61 | 1659 | /* check for range support ending */ |
62e76326 | 1660 | |
528b2c61 | 1661 | if (http->request->range) { |
62e76326 | 1662 | /* check: reply was parsed and range iterator was initialized */ |
1663 | assert(http->range_iter.valid); | |
1664 | /* filter out data according to range specs */ | |
1665 | ||
1666 | if (!canPackMoreRanges()) { | |
920ba08d | 1667 | debugs(33, 5, HERE << "Range request at end of returnable " << |
9e008dda | 1668 | "range sequence on FD " << fd()); |
62e76326 | 1669 | |
1670 | if (http->request->flags.proxy_keepalive) | |
1671 | return STREAM_COMPLETE; | |
1672 | else | |
1673 | return STREAM_UNPLANNED_COMPLETE; | |
1674 | } | |
fedd1531 | 1675 | } else if (reply && reply->content_range) { |
425802c8 | 1676 | /* reply has content-range, but Squid is not managing ranges */ |
1677 | const int64_t &bytesSent = http->out.offset; | |
1678 | const int64_t &bytesExpected = reply->content_range->spec.length; | |
fedd1531 | 1679 | |
425802c8 | 1680 | debugs(33, 7, HERE << "body bytes sent vs. expected: " << |
9e008dda AJ |
1681 | bytesSent << " ? " << bytesExpected << " (+" << |
1682 | reply->content_range->spec.offset << ")"); | |
425802c8 | 1683 | |
1684 | // did we get at least what we expected, based on range specs? | |
1685 | ||
65058d64 CT |
1686 | if (bytesSent == bytesExpected) { // got everything |
1687 | if (http->request->flags.proxy_keepalive) | |
1688 | return STREAM_COMPLETE; | |
1689 | else | |
1690 | return STREAM_UNPLANNED_COMPLETE; | |
1691 | } | |
425802c8 | 1692 | |
1693 | // The logic below is not clear: If we got more than we | |
1694 | // expected why would persistency matter? Should not this | |
1695 | // always be an error? | |
1696 | if (bytesSent > bytesExpected) { // got extra | |
fedd1531 | 1697 | if (http->request->flags.proxy_keepalive) |
1698 | return STREAM_COMPLETE; | |
1699 | else | |
1700 | return STREAM_UNPLANNED_COMPLETE; | |
1701 | } | |
425802c8 | 1702 | |
1703 | // did not get enough yet, expecting more | |
62e76326 | 1704 | } |
1705 | ||
1706 | return STREAM_NONE; | |
1707 | ||
1708 | case STREAM_COMPLETE: | |
528b2c61 | 1709 | return STREAM_COMPLETE; |
62e76326 | 1710 | |
1711 | case STREAM_UNPLANNED_COMPLETE: | |
1712 | return STREAM_UNPLANNED_COMPLETE; | |
1713 | ||
1714 | case STREAM_FAILED: | |
1715 | return STREAM_FAILED; | |
528b2c61 | 1716 | } |
62e76326 | 1717 | |
528b2c61 | 1718 | fatal ("unreachable code\n"); |
1719 | return STREAM_NONE; | |
c8be6d7b | 1720 | } |
edce4d98 | 1721 | |
63be0a78 | 1722 | /** |
1723 | * A write has just completed to the client, or we have just realised there is | |
edce4d98 | 1724 | * no more data to send. |
1725 | */ | |
e6ccf245 | 1726 | void |
2b663917 | 1727 | clientWriteComplete(int fd, char *bufnotused, size_t size, comm_err_t errflag, int xerrno, void *data) |
7a2f978b | 1728 | { |
528b2c61 | 1729 | ClientSocketContext *context = (ClientSocketContext *)data; |
0655fa4d | 1730 | context->writeComplete (fd, bufnotused, size, errflag); |
1731 | } | |
1732 | ||
f692498b AJ |
1733 | /// remembers the abnormal connection termination for logging purposes |
1734 | void | |
1735 | ClientSocketContext::noteIoError(const int xerrno) | |
1736 | { | |
1737 | if (http) { | |
1738 | if (xerrno == ETIMEDOUT) | |
1739 | http->al.http.timedout = true; | |
1740 | else // even if xerrno is zero (which means read abort/eof) | |
1741 | http->al.http.aborted = true; | |
1742 | } | |
1743 | } | |
1744 | ||
1745 | ||
55e44db9 | 1746 | void |
1747 | ClientSocketContext::doClose() | |
1748 | { | |
1749 | comm_close(fd()); | |
1750 | } | |
1751 | ||
6e1d409c AR |
1752 | /** Called to initiate (and possibly complete) closing of the context. |
1753 | * The underlying socket may be already closed */ | |
55e44db9 | 1754 | void |
5f8252d2 | 1755 | ClientSocketContext::initiateClose(const char *reason) |
55e44db9 | 1756 | { |
5f8252d2 | 1757 | debugs(33, 5, HERE << "initiateClose: closing for " << reason); |
fc68f6b1 | 1758 | |
3b299123 | 1759 | if (http != NULL) { |
1cf238db | 1760 | ConnStateData * conn = http->getConn(); |
3b299123 | 1761 | |
1762 | if (conn != NULL) { | |
39cb8c41 | 1763 | if (const int64_t expecting = conn->mayNeedToReadMoreBody()) { |
5f8252d2 | 1764 | debugs(33, 5, HERE << "ClientSocketContext::initiateClose: " << |
1765 | "closing, but first " << conn << " needs to read " << | |
1766 | expecting << " request body bytes with " << | |
1767 | conn->in.notYetUsed << " notYetUsed"); | |
1768 | ||
1769 | if (conn->closing()) { | |
1770 | debugs(33, 2, HERE << "avoiding double-closing " << conn); | |
1771 | return; | |
1772 | } | |
fc68f6b1 | 1773 | |
3b299123 | 1774 | /* |
1775 | * XXX We assume the reply fits in the TCP transmit | |
1776 | * window. If not the connection may stall while sending | |
1777 | * the reply (before reaching here) if the client does not | |
1778 | * try to read the response while sending the request body. | |
1779 | * As of yet we have not received any complaints indicating | |
1780 | * this may be an issue. | |
55e44db9 | 1781 | */ |
5f8252d2 | 1782 | conn->startClosing(reason); |
fc68f6b1 | 1783 | |
3b299123 | 1784 | return; |
1785 | } | |
1786 | } | |
55e44db9 | 1787 | } |
1788 | ||
1789 | doClose(); | |
1790 | } | |
1791 | ||
0655fa4d | 1792 | void |
e053c141 | 1793 | ClientSocketContext::writeComplete(int aFileDescriptor, char *bufnotused, size_t size, comm_err_t errflag) |
0655fa4d | 1794 | { |
86a2f789 | 1795 | StoreEntry *entry = http->storeEntry(); |
7a2f978b | 1796 | http->out.size += size; |
e053c141 FC |
1797 | assert(aFileDescriptor > -1); |
1798 | debugs(33, 5, "clientWriteComplete: FD " << aFileDescriptor << ", sz " << size << | |
e4049756 | 1799 | ", err " << errflag << ", off " << http->out.size << ", len " << |
707fdc47 | 1800 | entry ? entry->objectLen() : 0); |
c8be6d7b | 1801 | clientUpdateSocketStats(http->logType, size); |
e053c141 | 1802 | assert (this->fd() == aFileDescriptor); |
62e76326 | 1803 | |
5f8252d2 | 1804 | /* Bail out quickly on COMM_ERR_CLOSING - close handlers will tidy up */ |
fc68f6b1 | 1805 | |
5f8252d2 | 1806 | if (errflag == COMM_ERR_CLOSING) |
1807 | return; | |
1808 | ||
e053c141 | 1809 | if (errflag || clientHttpRequestStatus(aFileDescriptor, http)) { |
5f8252d2 | 1810 | initiateClose("failure or true request status"); |
62e76326 | 1811 | /* Do we leak here ? */ |
1812 | return; | |
edce4d98 | 1813 | } |
62e76326 | 1814 | |
0655fa4d | 1815 | switch (socketState()) { |
62e76326 | 1816 | |
edce4d98 | 1817 | case STREAM_NONE: |
0655fa4d | 1818 | pullData(); |
62e76326 | 1819 | break; |
1820 | ||
edce4d98 | 1821 | case STREAM_COMPLETE: |
e053c141 | 1822 | debugs(33, 5, "clientWriteComplete: FD " << aFileDescriptor << " Keeping Alive"); |
0655fa4d | 1823 | keepaliveNextRequest(); |
62e76326 | 1824 | return; |
1825 | ||
edce4d98 | 1826 | case STREAM_UNPLANNED_COMPLETE: |
6e1d409c AR |
1827 | initiateClose("STREAM_UNPLANNED_COMPLETE"); |
1828 | return; | |
62e76326 | 1829 | |
edce4d98 | 1830 | case STREAM_FAILED: |
6e1d409c | 1831 | initiateClose("STREAM_FAILED"); |
62e76326 | 1832 | return; |
1833 | ||
edce4d98 | 1834 | default: |
62e76326 | 1835 | fatal("Hit unreachable code in clientWriteComplete\n"); |
7a2f978b | 1836 | } |
1837 | } | |
1838 | ||
e6ccf245 | 1839 | extern "C" CSR clientGetMoreData; |
1840 | extern "C" CSS clientReplyStatus; | |
1841 | extern "C" CSD clientReplyDetach; | |
edce4d98 | 1842 | |
528b2c61 | 1843 | static ClientSocketContext * |
1cf238db | 1844 | parseHttpRequestAbort(ConnStateData * conn, const char *uri) |
038eb4ed | 1845 | { |
59a1efb2 | 1846 | ClientHttpRequest *http; |
528b2c61 | 1847 | ClientSocketContext *context; |
1848 | StoreIOBuffer tempBuffer; | |
a0355e95 | 1849 | http = new ClientHttpRequest(conn); |
c8be6d7b | 1850 | http->req_sz = conn->in.notYetUsed; |
edce4d98 | 1851 | http->uri = xstrdup(uri); |
c4b7a5a9 | 1852 | setLogUri (http, uri); |
528b2c61 | 1853 | context = ClientSocketContextNew(http); |
c8be6d7b | 1854 | tempBuffer.data = context->reqbuf; |
1855 | tempBuffer.length = HTTP_REQBUF_SZ; | |
edce4d98 | 1856 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, |
0655fa4d | 1857 | clientReplyStatus, new clientReplyContext(http), clientSocketRecipient, |
62e76326 | 1858 | clientSocketDetach, context, tempBuffer); |
edce4d98 | 1859 | return context; |
038eb4ed | 1860 | } |
1861 | ||
c8be6d7b | 1862 | char * |
1863 | skipLeadingSpace(char *aString) | |
1864 | { | |
1865 | char *result = aString; | |
62e76326 | 1866 | |
c8be6d7b | 1867 | while (xisspace(*aString)) |
62e76326 | 1868 | ++aString; |
1869 | ||
c8be6d7b | 1870 | return result; |
1871 | } | |
1872 | ||
63be0a78 | 1873 | /** |
d4a04ed5 | 1874 | * 'end' defaults to NULL for backwards compatibility |
1875 | * remove default value if we ever get rid of NULL-terminated | |
1876 | * request buffers. | |
1877 | */ | |
1878 | const char * | |
1879 | findTrailingHTTPVersion(const char *uriAndHTTPVersion, const char *end) | |
c8be6d7b | 1880 | { |
d4a04ed5 | 1881 | if (NULL == end) { |
1882 | end = uriAndHTTPVersion + strcspn(uriAndHTTPVersion, "\r\n"); | |
1883 | assert(end); | |
1884 | } | |
62e76326 | 1885 | |
d4a04ed5 | 1886 | for (; end > uriAndHTTPVersion; end--) { |
1887 | if (*end == '\n' || *end == '\r') | |
62e76326 | 1888 | continue; |
1889 | ||
d4a04ed5 | 1890 | if (xisspace(*end)) { |
1891 | if (strncasecmp(end + 1, "HTTP/", 5) == 0) | |
1892 | return end + 1; | |
62e76326 | 1893 | else |
1894 | break; | |
1895 | } | |
c8be6d7b | 1896 | } |
62e76326 | 1897 | |
3f38a55e | 1898 | return NULL; |
c8be6d7b | 1899 | } |
1900 | ||
c8be6d7b | 1901 | void |
59a1efb2 | 1902 | setLogUri(ClientHttpRequest * http, char const *uri) |
c8be6d7b | 1903 | { |
a46d0227 | 1904 | safe_free(http->log_uri); |
62e76326 | 1905 | |
c8be6d7b | 1906 | if (!stringHasCntl(uri)) |
62e76326 | 1907 | http->log_uri = xstrndup(uri, MAX_URL); |
c8be6d7b | 1908 | else |
62e76326 | 1909 | http->log_uri = xstrndup(rfc1738_escape_unescaped(uri), MAX_URL); |
c8be6d7b | 1910 | } |
1911 | ||
3f38a55e | 1912 | static void |
1cf238db | 1913 | prepareAcceleratedURL(ConnStateData * conn, ClientHttpRequest *http, char *url, const char *req_hdr) |
62e76326 | 1914 | { |
3f38a55e | 1915 | int vhost = conn->port->vhost; |
1916 | int vport = conn->port->vport; | |
1917 | char *host; | |
cc192b50 | 1918 | char ntoabuf[MAX_IPSTRLEN]; |
c8be6d7b | 1919 | |
3f38a55e | 1920 | http->flags.accel = 1; |
c8be6d7b | 1921 | |
3f38a55e | 1922 | /* BUG: Squid cannot deal with '*' URLs (RFC2616 5.1.2) */ |
c8be6d7b | 1923 | |
34399323 | 1924 | if (strncasecmp(url, "cache_object://", 15) == 0) |
1925 | return; /* already in good shape */ | |
1926 | ||
3f38a55e | 1927 | if (*url != '/') { |
62e76326 | 1928 | if (conn->port->vhost) |
1929 | return; /* already in good shape */ | |
1930 | ||
1931 | /* else we need to ignore the host name */ | |
1932 | url = strstr(url, "//"); | |
1933 | ||
3f38a55e | 1934 | #if SHOULD_REJECT_UNKNOWN_URLS |
62e76326 | 1935 | |
719c7e0a AJ |
1936 | if (!url) { |
1937 | hp->request_parse_status = HTTP_BAD_REQUEST; | |
62e76326 | 1938 | return parseHttpRequestAbort(conn, "error:invalid-request"); |
719c7e0a | 1939 | } |
c8be6d7b | 1940 | #endif |
62e76326 | 1941 | |
1942 | if (url) | |
1943 | url = strchr(url + 2, '/'); | |
1944 | ||
1945 | if (!url) | |
1946 | url = (char *) "/"; | |
3f38a55e | 1947 | } |
1948 | ||
1949 | if (internalCheck(url)) { | |
62e76326 | 1950 | /* prepend our name & port */ |
1951 | http->uri = xstrdup(internalLocalUri(NULL, url)); | |
ae7ff0b8 | 1952 | return; |
1953 | } | |
1954 | ||
1955 | const bool switchedToHttps = conn->switchedToHttps(); | |
1956 | const bool tryHostHeader = vhost || switchedToHttps; | |
1957 | if (tryHostHeader && (host = mime_get_header(req_hdr, "Host")) != NULL) { | |
62e76326 | 1958 | int url_sz = strlen(url) + 32 + Config.appendDomainLen + |
1959 | strlen(host); | |
1960 | http->uri = (char *)xcalloc(url_sz, 1); | |
ae7ff0b8 | 1961 | const char *protocol = switchedToHttps ? |
9e008dda | 1962 | "https" : conn->port->protocol; |
ae7ff0b8 | 1963 | snprintf(http->uri, url_sz, "%s://%s%s", protocol, host, url); |
bf8fe701 | 1964 | debugs(33, 5, "ACCEL VHOST REWRITE: '" << http->uri << "'"); |
3f38a55e | 1965 | } else if (conn->port->defaultsite) { |
62e76326 | 1966 | int url_sz = strlen(url) + 32 + Config.appendDomainLen + |
1967 | strlen(conn->port->defaultsite); | |
1968 | http->uri = (char *)xcalloc(url_sz, 1); | |
1969 | snprintf(http->uri, url_sz, "%s://%s%s", | |
1970 | conn->port->protocol, conn->port->defaultsite, url); | |
bf8fe701 | 1971 | debugs(33, 5, "ACCEL DEFAULTSITE REWRITE: '" << http->uri <<"'"); |
3f38a55e | 1972 | } else if (vport == -1) { |
62e76326 | 1973 | /* Put the local socket IP address as the hostname. */ |
1974 | int url_sz = strlen(url) + 32 + Config.appendDomainLen; | |
1975 | http->uri = (char *)xcalloc(url_sz, 1); | |
1976 | snprintf(http->uri, url_sz, "%s://%s:%d%s", | |
98242069 | 1977 | http->getConn()->port->protocol, |
cc192b50 | 1978 | http->getConn()->me.NtoA(ntoabuf,MAX_IPSTRLEN), |
1979 | http->getConn()->me.GetPort(), url); | |
bf8fe701 | 1980 | debugs(33, 5, "ACCEL VPORT REWRITE: '" << http->uri << "'"); |
3f38a55e | 1981 | } else if (vport > 0) { |
62e76326 | 1982 | /* Put the local socket IP address as the hostname, but static port */ |
1983 | int url_sz = strlen(url) + 32 + Config.appendDomainLen; | |
1984 | http->uri = (char *)xcalloc(url_sz, 1); | |
1985 | snprintf(http->uri, url_sz, "%s://%s:%d%s", | |
98242069 | 1986 | http->getConn()->port->protocol, |
cc192b50 | 1987 | http->getConn()->me.NtoA(ntoabuf,MAX_IPSTRLEN), |
62e76326 | 1988 | vport, url); |
bf8fe701 | 1989 | debugs(33, 5, "ACCEL VPORT REWRITE: '" << http->uri << "'"); |
3f38a55e | 1990 | } |
1991 | } | |
1992 | ||
1993 | static void | |
1cf238db | 1994 | prepareTransparentURL(ConnStateData * conn, ClientHttpRequest *http, char *url, const char *req_hdr) |
62e76326 | 1995 | { |
3f38a55e | 1996 | char *host; |
cc192b50 | 1997 | char ntoabuf[MAX_IPSTRLEN]; |
3f38a55e | 1998 | |
3f38a55e | 1999 | if (*url != '/') |
62e76326 | 2000 | return; /* already in good shape */ |
3f38a55e | 2001 | |
2002 | /* BUG: Squid cannot deal with '*' URLs (RFC2616 5.1.2) */ | |
2003 | ||
f024c970 | 2004 | if ((host = mime_get_header(req_hdr, "Host")) != NULL) { |
62e76326 | 2005 | int url_sz = strlen(url) + 32 + Config.appendDomainLen + |
2006 | strlen(host); | |
2007 | http->uri = (char *)xcalloc(url_sz, 1); | |
2008 | snprintf(http->uri, url_sz, "%s://%s%s", | |
2009 | conn->port->protocol, host, url); | |
bf8fe701 | 2010 | debugs(33, 5, "TRANSPARENT HOST REWRITE: '" << http->uri <<"'"); |
c8be6d7b | 2011 | } else { |
62e76326 | 2012 | /* Put the local socket IP address as the hostname. */ |
2013 | int url_sz = strlen(url) + 32 + Config.appendDomainLen; | |
2014 | http->uri = (char *)xcalloc(url_sz, 1); | |
2015 | snprintf(http->uri, url_sz, "%s://%s:%d%s", | |
98242069 | 2016 | http->getConn()->port->protocol, |
cc192b50 | 2017 | http->getConn()->me.NtoA(ntoabuf,MAX_IPSTRLEN), |
2018 | http->getConn()->me.GetPort(), url); | |
bf8fe701 | 2019 | debugs(33, 5, "TRANSPARENT REWRITE: '" << http->uri << "'"); |
c8be6d7b | 2020 | } |
c8be6d7b | 2021 | } |
2022 | ||
63be0a78 | 2023 | /** |
7a2f978b | 2024 | * parseHttpRequest() |
9e008dda | 2025 | * |
7a2f978b | 2026 | * Returns |
c4b7a5a9 | 2027 | * NULL on incomplete requests |
528b2c61 | 2028 | * a ClientSocketContext structure on success or failure. |
c4b7a5a9 | 2029 | * Sets result->flags.parsed_ok to 0 if failed to parse the request. |
2030 | * Sets result->flags.parsed_ok to 1 if we have a good request. | |
7a2f978b | 2031 | */ |
528b2c61 | 2032 | static ClientSocketContext * |
1cf238db | 2033 | parseHttpRequest(ConnStateData *conn, HttpParser *hp, HttpRequestMethod * method_p, HttpVersion *http_ver) |
7a2f978b | 2034 | { |
7a2f978b | 2035 | char *req_hdr = NULL; |
2334c194 | 2036 | char *end; |
c68e9c6b | 2037 | size_t req_sz; |
59a1efb2 | 2038 | ClientHttpRequest *http; |
528b2c61 | 2039 | ClientSocketContext *result; |
2040 | StoreIOBuffer tempBuffer; | |
84cc2635 | 2041 | int r; |
7a2f978b | 2042 | |
6792f0d3 | 2043 | /* pre-set these values to make aborting simpler */ |
6792f0d3 | 2044 | *method_p = METHOD_NONE; |
6792f0d3 | 2045 | |
7ed7d3da AJ |
2046 | /* NP: don't be tempted to move this down or remove again. |
2047 | * It's the only DDoS protection old-String has against long URL */ | |
2048 | if ( hp->bufsiz <= 0) { | |
2049 | debugs(33, 5, "Incomplete request, waiting for end of request line"); | |
2050 | return NULL; | |
e1381638 | 2051 | } else if ( (size_t)hp->bufsiz >= Config.maxRequestHeaderSize && headersEnd(hp->buf, Config.maxRequestHeaderSize) == 0) { |
7ed7d3da | 2052 | debugs(33, 5, "parseHttpRequest: Too large request"); |
719c7e0a | 2053 | hp->request_parse_status = HTTP_HEADER_TOO_LARGE; |
7ed7d3da AJ |
2054 | return parseHttpRequestAbort(conn, "error:request-too-large"); |
2055 | } | |
2056 | ||
84cc2635 | 2057 | /* Attempt to parse the first line; this'll define the method, url, version and header begin */ |
2058 | r = HttpParserParseReqLine(hp); | |
fc68f6b1 | 2059 | |
84cc2635 | 2060 | if (r == 0) { |
bf8fe701 | 2061 | debugs(33, 5, "Incomplete request, waiting for end of request line"); |
fc68f6b1 | 2062 | return NULL; |
7a2f978b | 2063 | } |
fc68f6b1 | 2064 | |
84cc2635 | 2065 | if (r == -1) { |
2066 | return parseHttpRequestAbort(conn, "error:invalid-request"); | |
2067 | } | |
fc68f6b1 | 2068 | |
84cc2635 | 2069 | /* Request line is valid here .. */ |
2070 | *http_ver = HttpVersion(hp->v_maj, hp->v_min); | |
62e76326 | 2071 | |
52512f28 | 2072 | /* This call scans the entire request, not just the headers */ |
84cc2635 | 2073 | if (hp->v_maj > 0) { |
a5baffba | 2074 | if ((req_sz = headersEnd(hp->buf, hp->bufsiz)) == 0) { |
bf8fe701 | 2075 | debugs(33, 5, "Incomplete request, waiting for end of headers"); |
62e76326 | 2076 | return NULL; |
2077 | } | |
3f38a55e | 2078 | } else { |
bf8fe701 | 2079 | debugs(33, 3, "parseHttpRequest: Missing HTTP identifier"); |
84cc2635 | 2080 | req_sz = HttpParserReqSz(hp); |
3f38a55e | 2081 | } |
2082 | ||
bb790702 | 2083 | /* We know the whole request is in hp->buf now */ |
52512f28 | 2084 | |
a5baffba | 2085 | assert(req_sz <= (size_t) hp->bufsiz); |
fc68f6b1 | 2086 | |
a5baffba | 2087 | /* Will the following be true with HTTP/0.9 requests? probably not .. */ |
2088 | /* So the rest of the code will need to deal with '0'-byte headers (ie, none, so don't try parsing em) */ | |
2089 | assert(req_sz > 0); | |
fc68f6b1 | 2090 | |
a5baffba | 2091 | hp->hdr_end = req_sz - 1; |
fc68f6b1 | 2092 | |
a5baffba | 2093 | hp->hdr_start = hp->req_end + 1; |
3f38a55e | 2094 | |
5b648f60 | 2095 | /* Enforce max_request_size */ |
5b648f60 | 2096 | if (req_sz >= Config.maxRequestHeaderSize) { |
bf8fe701 | 2097 | debugs(33, 5, "parseHttpRequest: Too large request"); |
719c7e0a | 2098 | hp->request_parse_status = HTTP_HEADER_TOO_LARGE; |
5b648f60 | 2099 | return parseHttpRequestAbort(conn, "error:request-too-large"); |
2100 | } | |
2101 | ||
84cc2635 | 2102 | /* Set method_p */ |
60745f24 | 2103 | *method_p = HttpRequestMethod(&hp->buf[hp->m_start], &hp->buf[hp->m_end]+1); |
fc68f6b1 | 2104 | |
adf29627 AJ |
2105 | /* deny CONNECT via accelerated ports */ |
2106 | if (*method_p == METHOD_CONNECT && conn && conn->port && conn->port->accel) { | |
2107 | debugs(33, DBG_IMPORTANT, "WARNING: CONNECT method received on " << conn->port->protocol << " Accelerator port " << conn->port->s.GetPort() ); | |
2108 | /* XXX need a way to say "this many character length string" */ | |
2109 | debugs(33, DBG_IMPORTANT, "WARNING: for request: " << hp->buf); | |
719c7e0a | 2110 | hp->request_parse_status = HTTP_METHOD_NOT_ALLOWED; |
adf29627 AJ |
2111 | return parseHttpRequestAbort(conn, "error:method-not-allowed"); |
2112 | } | |
2113 | ||
84cc2635 | 2114 | if (*method_p == METHOD_NONE) { |
fc68f6b1 | 2115 | /* XXX need a way to say "this many character length string" */ |
bf8fe701 | 2116 | debugs(33, 1, "clientParseRequestMethod: Unsupported method in request '" << hp->buf << "'"); |
719c7e0a | 2117 | hp->request_parse_status = HTTP_METHOD_NOT_ALLOWED; |
84cc2635 | 2118 | return parseHttpRequestAbort(conn, "error:unsupported-request-method"); |
3f38a55e | 2119 | } |
7a2f978b | 2120 | |
c68e9c6b | 2121 | /* |
2122 | * Process headers after request line | |
c8be6d7b | 2123 | * TODO: Use httpRequestParse here. |
c68e9c6b | 2124 | */ |
84cc2635 | 2125 | /* XXX this code should be modified to take a const char * later! */ |
2126 | req_hdr = (char *) hp->buf + hp->req_end + 1; | |
fc68f6b1 | 2127 | |
bf8fe701 | 2128 | debugs(33, 3, "parseHttpRequest: req_hdr = {" << req_hdr << "}"); |
fc68f6b1 | 2129 | |
52512f28 | 2130 | end = (char *) hp->buf + hp->hdr_end; |
fc68f6b1 | 2131 | |
bf8fe701 | 2132 | debugs(33, 3, "parseHttpRequest: end = {" << end << "}"); |
99edd1c3 | 2133 | |
bf8fe701 | 2134 | debugs(33, 3, "parseHttpRequest: prefix_sz = " << |
2135 | (int) HttpParserRequestLen(hp) << ", req_line_sz = " << | |
2136 | HttpParserReqSz(hp)); | |
62e76326 | 2137 | |
7a2f978b | 2138 | /* Ok, all headers are received */ |
a0355e95 | 2139 | http = new ClientHttpRequest(conn); |
62e76326 | 2140 | |
a5baffba | 2141 | http->req_sz = HttpParserRequestLen(hp); |
528b2c61 | 2142 | result = ClientSocketContextNew(http); |
c8be6d7b | 2143 | tempBuffer.data = result->reqbuf; |
2144 | tempBuffer.length = HTTP_REQBUF_SZ; | |
62e76326 | 2145 | |
0655fa4d | 2146 | ClientStreamData newServer = new clientReplyContext(http); |
0655fa4d | 2147 | ClientStreamData newClient = result; |
edce4d98 | 2148 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, |
0655fa4d | 2149 | clientReplyStatus, newServer, clientSocketRecipient, |
2150 | clientSocketDetach, newClient, tempBuffer); | |
62e76326 | 2151 | |
bf8fe701 | 2152 | debugs(33, 5, "parseHttpRequest: Request Header is\n" <<(hp->buf) + hp->hdr_start); |
3f38a55e | 2153 | |
3ff65596 AR |
2154 | /* set url */ |
2155 | /* | |
2156 | * XXX this should eventually not use a malloc'ed buffer; the transformation code | |
2157 | * below needs to be modified to not expect a mutable nul-terminated string. | |
2158 | */ | |
2159 | char *url = (char *)xmalloc(hp->u_end - hp->u_start + 16); | |
2160 | ||
2161 | memcpy(url, hp->buf + hp->u_start, hp->u_end - hp->u_start + 1); | |
2162 | ||
2163 | url[hp->u_end - hp->u_start + 1] = '\0'; | |
2164 | ||
ba9ebd0a | 2165 | #if THIS_VIOLATES_HTTP_SPECS_ON_URL_TRANSFORMATION |
62e76326 | 2166 | |
7a2f978b | 2167 | if ((t = strchr(url, '#'))) /* remove HTML anchors */ |
62e76326 | 2168 | *t = '\0'; |
2169 | ||
ba9ebd0a | 2170 | #endif |
7a2f978b | 2171 | |
3f38a55e | 2172 | /* Rewrite the URL in transparent or accelerator mode */ |
89272111 AJ |
2173 | /* NP: there are several cases to traverse here: |
2174 | * - standard mode (forward proxy) | |
2175 | * - transparent mode (TPROXY) | |
2176 | * - transparent mode with failures | |
2177 | * - intercept mode (NAT) | |
2178 | * - intercept mode with failures | |
2179 | * - accelerator mode (reverse proxy) | |
2180 | * - internal URL | |
2181 | * - mixed combos of the above with internal URL | |
2182 | */ | |
a46d2c0e | 2183 | if (conn->transparent()) { |
89272111 | 2184 | /* intercept or transparent mode, properly working with no failures */ |
891de1fe AJ |
2185 | http->flags.intercepted = conn->port->intercepted; |
2186 | http->flags.spoof_client_ip = conn->port->spoof_client_ip; | |
89272111 AJ |
2187 | prepareTransparentURL(conn, http, url, req_hdr); |
2188 | ||
2189 | } else if (conn->port->intercepted || conn->port->spoof_client_ip) { | |
2190 | /* transparent or intercept mode with failures */ | |
62e76326 | 2191 | prepareTransparentURL(conn, http, url, req_hdr); |
89272111 | 2192 | |
ae7ff0b8 | 2193 | } else if (conn->port->accel || conn->switchedToHttps()) { |
89272111 | 2194 | /* accelerator mode */ |
62e76326 | 2195 | prepareAcceleratedURL(conn, http, url, req_hdr); |
89272111 | 2196 | |
2f2749d7 | 2197 | } else if (internalCheck(url)) { |
89272111 | 2198 | /* internal URL mode */ |
2f2749d7 | 2199 | /* prepend our name & port */ |
2200 | http->uri = xstrdup(internalLocalUri(NULL, url)); | |
2f2749d7 | 2201 | http->flags.accel = 1; |
3f38a55e | 2202 | } |
2203 | ||
2204 | if (!http->uri) { | |
62e76326 | 2205 | /* No special rewrites have been applied above, use the |
2206 | * requested url. may be rewritten later, so make extra room */ | |
2207 | int url_sz = strlen(url) + Config.appendDomainLen + 5; | |
2208 | http->uri = (char *)xcalloc(url_sz, 1); | |
2209 | strcpy(http->uri, url); | |
3f38a55e | 2210 | } |
62e76326 | 2211 | |
c8be6d7b | 2212 | setLogUri(http, http->uri); |
bf8fe701 | 2213 | debugs(33, 5, "parseHttpRequest: Complete request received"); |
c4b7a5a9 | 2214 | result->flags.parsed_ok = 1; |
84cc2635 | 2215 | xfree(url); |
c8be6d7b | 2216 | return result; |
7a2f978b | 2217 | } |
2218 | ||
c8be6d7b | 2219 | int |
a46d2c0e | 2220 | ConnStateData::getAvailableBufferLength() const |
c8be6d7b | 2221 | { |
1a419b96 | 2222 | int result = in.allocatedSize - in.notYetUsed - 1; |
2223 | assert (result >= 0); | |
2224 | return result; | |
c8be6d7b | 2225 | } |
2226 | ||
2227 | void | |
a46d2c0e | 2228 | ConnStateData::makeSpaceAvailable() |
c8be6d7b | 2229 | { |
a46d2c0e | 2230 | if (getAvailableBufferLength() < 2) { |
2231 | in.buf = (char *)memReallocBuf(in.buf, in.allocatedSize * 2, &in.allocatedSize); | |
4a7a3d56 | 2232 | debugs(33, 2, "growing request buffer: notYetUsed=" << in.notYetUsed << " size=" << in.allocatedSize); |
c8be6d7b | 2233 | } |
2234 | } | |
2235 | ||
2236 | void | |
0655fa4d | 2237 | ConnStateData::addContextToQueue(ClientSocketContext * context) |
c8be6d7b | 2238 | { |
0655fa4d | 2239 | ClientSocketContext::Pointer *S; |
62e76326 | 2240 | |
0655fa4d | 2241 | for (S = (ClientSocketContext::Pointer *) & currentobject; S->getRaw(); |
3d0ac046 | 2242 | S = &(*S)->next); |
c8be6d7b | 2243 | *S = context; |
62e76326 | 2244 | |
0655fa4d | 2245 | ++nrequests; |
c8be6d7b | 2246 | } |
2247 | ||
2248 | int | |
0655fa4d | 2249 | ConnStateData::getConcurrentRequestCount() const |
c8be6d7b | 2250 | { |
2251 | int result = 0; | |
0655fa4d | 2252 | ClientSocketContext::Pointer *T; |
62e76326 | 2253 | |
0655fa4d | 2254 | for (T = (ClientSocketContext::Pointer *) ¤tobject; |
3d0ac046 | 2255 | T->getRaw(); T = &(*T)->next, ++result); |
c8be6d7b | 2256 | return result; |
2257 | } | |
2258 | ||
2259 | int | |
1cf238db | 2260 | ConnStateData::connReadWasError(comm_err_t flag, int size, int xerrno) |
c8be6d7b | 2261 | { |
c4b7a5a9 | 2262 | if (flag != COMM_OK) { |
1cf238db | 2263 | debugs(33, 2, "connReadWasError: FD " << fd << ": got flag " << flag); |
62e76326 | 2264 | return 1; |
c4b7a5a9 | 2265 | } |
62e76326 | 2266 | |
c8be6d7b | 2267 | if (size < 0) { |
f3400a93 | 2268 | if (!ignoreErrno(xerrno)) { |
1cf238db | 2269 | debugs(33, 2, "connReadWasError: FD " << fd << ": " << xstrerr(xerrno)); |
62e76326 | 2270 | return 1; |
1cf238db | 2271 | } else if (in.notYetUsed == 0) { |
2272 | debugs(33, 2, "connReadWasError: FD " << fd << ": no data to process (" << xstrerr(xerrno) << ")"); | |
62e76326 | 2273 | } |
c8be6d7b | 2274 | } |
62e76326 | 2275 | |
c8be6d7b | 2276 | return 0; |
2277 | } | |
2278 | ||
2279 | int | |
1cf238db | 2280 | ConnStateData::connFinishedWithConn(int size) |
c8be6d7b | 2281 | { |
2282 | if (size == 0) { | |
1cf238db | 2283 | if (getConcurrentRequestCount() == 0 && in.notYetUsed == 0) { |
62e76326 | 2284 | /* no current or pending requests */ |
1cf238db | 2285 | debugs(33, 4, "connFinishedWithConn: FD " << fd << " closed"); |
62e76326 | 2286 | return 1; |
2287 | } else if (!Config.onoff.half_closed_clients) { | |
2288 | /* admin doesn't want to support half-closed client sockets */ | |
1cf238db | 2289 | debugs(33, 3, "connFinishedWithConn: FD " << fd << " aborted (half_closed_clients disabled)"); |
f692498b | 2290 | notifyAllContexts(0); // no specific error implies abort |
62e76326 | 2291 | return 1; |
2292 | } | |
c8be6d7b | 2293 | } |
62e76326 | 2294 | |
c8be6d7b | 2295 | return 0; |
2296 | } | |
2297 | ||
2298 | void | |
3b299123 | 2299 | connNoteUseOfBuffer(ConnStateData* conn, size_t byteCount) |
c8be6d7b | 2300 | { |
2301 | assert(byteCount > 0 && byteCount <= conn->in.notYetUsed); | |
2302 | conn->in.notYetUsed -= byteCount; | |
d5fa7219 | 2303 | debugs(33, 5, HERE << "conn->in.notYetUsed = " << conn->in.notYetUsed); |
c8be6d7b | 2304 | /* |
9e008dda | 2305 | * If there is still data that will be used, |
c8be6d7b | 2306 | * move it to the beginning. |
2307 | */ | |
62e76326 | 2308 | |
c8be6d7b | 2309 | if (conn->in.notYetUsed > 0) |
62e76326 | 2310 | xmemmove(conn->in.buf, conn->in.buf + byteCount, |
2311 | conn->in.notYetUsed); | |
c8be6d7b | 2312 | } |
2313 | ||
39cb8c41 AR |
2314 | /// respond with ERR_TOO_BIG if request header exceeds request_header_max_size |
2315 | void | |
2316 | ConnStateData::checkHeaderLimits() | |
c8be6d7b | 2317 | { |
39cb8c41 AR |
2318 | if (in.notYetUsed < Config.maxRequestHeaderSize) |
2319 | return; // can accumulte more header data | |
3ff65596 | 2320 | |
39cb8c41 | 2321 | debugs(33, 3, "Request header is too large (" << in.notYetUsed << " > " << |
de48b288 | 2322 | Config.maxRequestHeaderSize << " bytes)"); |
c8be6d7b | 2323 | |
39cb8c41 | 2324 | ClientSocketContext *context = parseHttpRequestAbort(this, "error:request-too-large"); |
528b2c61 | 2325 | clientStreamNode *node = context->getClientReplyContext(); |
0655fa4d | 2326 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2327 | assert (repContext); | |
2328 | repContext->setReplyToError(ERR_TOO_BIG, | |
39cb8c41 AR |
2329 | HTTP_BAD_REQUEST, METHOD_NONE, NULL, |
2330 | peer, NULL, NULL, NULL); | |
0655fa4d | 2331 | context->registerWithConn(); |
528b2c61 | 2332 | context->pullData(); |
c8be6d7b | 2333 | } |
2334 | ||
1cf238db | 2335 | void |
2336 | ConnStateData::clientMaybeReadData(int do_next_read) | |
7a2f978b | 2337 | { |
c4b7a5a9 | 2338 | if (do_next_read) { |
1cf238db | 2339 | flags.readMoreRequests = true; |
2340 | readSomeData(); | |
c4b7a5a9 | 2341 | } |
2342 | } | |
2343 | ||
1cf238db | 2344 | void |
2345 | ConnStateData::clientAfterReadingRequests(int do_next_read) | |
c4b7a5a9 | 2346 | { |
39cb8c41 AR |
2347 | // Were we expecting to read more request body from half-closed connection? |
2348 | if (mayNeedToReadMoreBody() && commIsHalfClosed(fd)) { | |
2349 | debugs(33, 3, HERE << "truncated body: closing half-closed FD " << fd); | |
2350 | comm_close(fd); | |
2351 | return; | |
c4b7a5a9 | 2352 | } |
2353 | ||
1cf238db | 2354 | clientMaybeReadData (do_next_read); |
c4b7a5a9 | 2355 | } |
2356 | ||
c4b7a5a9 | 2357 | static void |
1cf238db | 2358 | clientProcessRequest(ConnStateData *conn, HttpParser *hp, ClientSocketContext *context, const HttpRequestMethod& method, HttpVersion http_ver) |
c4b7a5a9 | 2359 | { |
59a1efb2 | 2360 | ClientHttpRequest *http = context->http; |
190154cf | 2361 | HttpRequest *request = NULL; |
5f8252d2 | 2362 | bool notedUseOfBuffer = false; |
39cb8c41 | 2363 | bool chunked = false; |
e18b8316 | 2364 | bool mustReplyToOptions = false; |
3ff65596 | 2365 | bool unsupportedTe = false; |
39cb8c41 | 2366 | bool expectBody = false; |
5f8252d2 | 2367 | |
c4b7a5a9 | 2368 | /* We have an initial client stream in place should it be needed */ |
2369 | /* setup our private context */ | |
0655fa4d | 2370 | context->registerWithConn(); |
c4b7a5a9 | 2371 | |
2372 | if (context->flags.parsed_ok == 0) { | |
62e76326 | 2373 | clientStreamNode *node = context->getClientReplyContext(); |
bf8fe701 | 2374 | debugs(33, 1, "clientProcessRequest: Invalid Request"); |
0655fa4d | 2375 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2376 | assert (repContext); | |
e212e5e3 | 2377 | switch (hp->request_parse_status) { |
719c7e0a | 2378 | case HTTP_HEADER_TOO_LARGE: |
b5bd8515 | 2379 | repContext->setReplyToError(ERR_TOO_BIG, HTTP_BAD_REQUEST, method, http->uri, conn->peer, NULL, conn->in.buf, NULL); |
719c7e0a AJ |
2380 | break; |
2381 | case HTTP_METHOD_NOT_ALLOWED: | |
2382 | repContext->setReplyToError(ERR_UNSUP_REQ, HTTP_METHOD_NOT_ALLOWED, method, http->uri, conn->peer, NULL, conn->in.buf, NULL); | |
2383 | break; | |
2384 | default: | |
2385 | repContext->setReplyToError(ERR_INVALID_REQ, HTTP_BAD_REQUEST, method, http->uri, conn->peer, NULL, conn->in.buf, NULL); | |
2386 | } | |
62e76326 | 2387 | assert(context->http->out.offset == 0); |
2388 | context->pullData(); | |
48962ba8 | 2389 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2390 | goto finish; |
c4b7a5a9 | 2391 | } |
2392 | ||
c21ad0f5 | 2393 | if ((request = HttpRequest::CreateFromUrlAndMethod(http->uri, method)) == NULL) { |
62e76326 | 2394 | clientStreamNode *node = context->getClientReplyContext(); |
bf8fe701 | 2395 | debugs(33, 5, "Invalid URL: " << http->uri); |
0655fa4d | 2396 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2397 | assert (repContext); | |
cc192b50 | 2398 | repContext->setReplyToError(ERR_INVALID_URL, HTTP_BAD_REQUEST, method, http->uri, conn->peer, NULL, NULL, NULL); |
62e76326 | 2399 | assert(context->http->out.offset == 0); |
2400 | context->pullData(); | |
48962ba8 | 2401 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2402 | goto finish; |
62e76326 | 2403 | } |
c4b7a5a9 | 2404 | |
e57c1885 AJ |
2405 | /* RFC 2616 section 10.5.6 : handle unsupported HTTP versions cleanly. */ |
2406 | /* We currently only accept 0.9, 1.0, 1.1 */ | |
2407 | if ( (http_ver.major == 0 && http_ver.minor != 9) || | |
af6a12ee AJ |
2408 | (http_ver.major == 1 && http_ver.minor > 1 ) || |
2409 | (http_ver.major > 1) ) { | |
e57c1885 AJ |
2410 | |
2411 | clientStreamNode *node = context->getClientReplyContext(); | |
2412 | debugs(33, 5, "Unsupported HTTP version discovered. :\n" << HttpParserHdrBuf(hp)); | |
2413 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
2414 | assert (repContext); | |
2415 | repContext->setReplyToError(ERR_UNSUP_HTTPVERSION, HTTP_HTTP_VERSION_NOT_SUPPORTED, method, http->uri, conn->peer, NULL, HttpParserHdrBuf(hp), NULL); | |
2416 | assert(context->http->out.offset == 0); | |
2417 | context->pullData(); | |
2418 | conn->flags.readMoreRequests = false; | |
2419 | goto finish; | |
2420 | } | |
2421 | ||
528b2c61 | 2422 | /* compile headers */ |
2423 | /* we should skip request line! */ | |
666f514b | 2424 | /* XXX should actually know the damned buffer size here */ |
38e82382 | 2425 | if (http_ver.major >= 1 && !request->parseHeader(HttpParserHdrBuf(hp), HttpParserHdrSz(hp))) { |
47ac2ebe | 2426 | clientStreamNode *node = context->getClientReplyContext(); |
bf8fe701 | 2427 | debugs(33, 5, "Failed to parse request headers:\n" << HttpParserHdrBuf(hp)); |
47ac2ebe | 2428 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2429 | assert (repContext); | |
38e82382 | 2430 | repContext->setReplyToError(ERR_INVALID_REQ, HTTP_BAD_REQUEST, method, http->uri, conn->peer, NULL, NULL, NULL); |
47ac2ebe | 2431 | assert(context->http->out.offset == 0); |
2432 | context->pullData(); | |
48962ba8 | 2433 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2434 | goto finish; |
47ac2ebe | 2435 | } |
c4b7a5a9 | 2436 | |
2437 | request->flags.accelerated = http->flags.accel; | |
432bc83c | 2438 | request->flags.ignore_cc = conn->port->ignore_cc; |
7f7bdd96 | 2439 | request->flags.no_direct = request->flags.accelerated ? !conn->port->allow_direct : 0; |
2ad20b4f AJ |
2440 | |
2441 | /** \par | |
2442 | * If transparent or interception mode is working clone the transparent and interception flags | |
2443 | * from the port settings to the request. | |
2444 | */ | |
b7ac5457 | 2445 | if (Ip::Interceptor.InterceptActive()) { |
2ad20b4f AJ |
2446 | request->flags.intercepted = http->flags.intercepted; |
2447 | } | |
b7ac5457 | 2448 | if (Ip::Interceptor.TransparentActive()) { |
f165d2fb | 2449 | request->flags.spoof_client_ip = conn->port->spoof_client_ip; |
2ad20b4f | 2450 | } |
fc68f6b1 | 2451 | |
5b4117d8 | 2452 | if (internalCheck(request->urlpath.termedBuf())) { |
cc192b50 | 2453 | if (internalHostnameIs(request->GetHost()) && |
f024c970 | 2454 | request->port == getMyPort()) { |
2455 | http->flags.internal = 1; | |
9c175897 | 2456 | } else if (Config.onoff.global_internal_static && internalStaticCheck(request->urlpath.termedBuf())) { |
cc192b50 | 2457 | request->SetHost(internalHostname()); |
f024c970 | 2458 | request->port = getMyPort(); |
2459 | http->flags.internal = 1; | |
62e76326 | 2460 | } |
f024c970 | 2461 | } |
e72a0ec0 | 2462 | |
f024c970 | 2463 | if (http->flags.internal) { |
2464 | request->protocol = PROTO_HTTP; | |
2465 | request->login[0] = '\0'; | |
c4b7a5a9 | 2466 | } |
2467 | ||
c4b7a5a9 | 2468 | request->flags.internal = http->flags.internal; |
2469 | setLogUri (http, urlCanonicalClean(request)); | |
cc192b50 | 2470 | request->client_addr = conn->peer; |
a98c2da5 AJ |
2471 | #if USE_SQUID_EUI |
2472 | request->client_eui48 = conn->peer_eui48; | |
2473 | request->client_eui64 = conn->peer_eui64; | |
2474 | #endif | |
3d674977 AJ |
2475 | #if FOLLOW_X_FORWARDED_FOR |
2476 | request->indirect_client_addr = conn->peer; | |
2477 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
cc192b50 | 2478 | request->my_addr = conn->me; |
35fb56c9 | 2479 | request->myportname = conn->port->name; |
8ae66e43 | 2480 | request->http_ver = http_ver; |
62e76326 | 2481 | |
39cb8c41 AR |
2482 | if (request->header.chunked()) { |
2483 | chunked = true; | |
2484 | } else if (request->header.has(HDR_TRANSFER_ENCODING)) { | |
2485 | const String te = request->header.getList(HDR_TRANSFER_ENCODING); | |
2486 | // HTTP/1.1 requires chunking to be the last encoding if there is one | |
2487 | unsupportedTe = te.size() && te != "identity"; | |
2488 | } // else implied identity coding | |
de48b288 | 2489 | |
e18b8316 AR |
2490 | if (method == METHOD_TRACE || method == METHOD_OPTIONS) |
2491 | request->max_forwards = request->header.getInt64(HDR_MAX_FORWARDS); | |
2492 | ||
2493 | mustReplyToOptions = (method == METHOD_OPTIONS) && (request->max_forwards == 0); | |
e18b8316 | 2494 | if (!urlCheckRequest(request) || mustReplyToOptions || unsupportedTe) { |
62e76326 | 2495 | clientStreamNode *node = context->getClientReplyContext(); |
0655fa4d | 2496 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2497 | assert (repContext); | |
2498 | repContext->setReplyToError(ERR_UNSUP_REQ, | |
2499 | HTTP_NOT_IMPLEMENTED, request->method, NULL, | |
cc192b50 | 2500 | conn->peer, request, NULL, NULL); |
62e76326 | 2501 | assert(context->http->out.offset == 0); |
2502 | context->pullData(); | |
48962ba8 | 2503 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2504 | goto finish; |
c4b7a5a9 | 2505 | } |
2506 | ||
2507 | ||
39cb8c41 | 2508 | if (!chunked && !clientIsContentLengthValid(request)) { |
62e76326 | 2509 | clientStreamNode *node = context->getClientReplyContext(); |
0655fa4d | 2510 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2511 | assert (repContext); | |
2512 | repContext->setReplyToError(ERR_INVALID_REQ, | |
2513 | HTTP_LENGTH_REQUIRED, request->method, NULL, | |
cc192b50 | 2514 | conn->peer, request, NULL, NULL); |
62e76326 | 2515 | assert(context->http->out.offset == 0); |
2516 | context->pullData(); | |
48962ba8 | 2517 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2518 | goto finish; |
c4b7a5a9 | 2519 | } |
2520 | ||
52b601ff | 2521 | if (request->header.has(HDR_EXPECT)) { |
655daa06 AR |
2522 | const String expect = request->header.getList(HDR_EXPECT); |
2523 | const bool supportedExpect = (expect.caseCmp("100-continue") == 0); | |
2524 | if (!supportedExpect) { | |
52b601ff AJ |
2525 | clientStreamNode *node = context->getClientReplyContext(); |
2526 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
2527 | assert (repContext); | |
2528 | repContext->setReplyToError(ERR_INVALID_REQ, HTTP_EXPECTATION_FAILED, request->method, http->uri, conn->peer, request, NULL, NULL); | |
2529 | assert(context->http->out.offset == 0); | |
2530 | context->pullData(); | |
2531 | goto finish; | |
2532 | } | |
2533 | } | |
2534 | ||
6dd9f4bd | 2535 | http->request = HTTPMSGLOCK(request); |
c4b7a5a9 | 2536 | clientSetKeepaliveFlag(http); |
62e76326 | 2537 | |
b66e0e86 | 2538 | /* If this is a CONNECT, don't schedule a read - ssl.c will handle it */ |
2539 | if (http->request->method == METHOD_CONNECT) | |
2540 | context->mayUseConnection(true); | |
fc68f6b1 | 2541 | |
b66e0e86 | 2542 | /* Do we expect a request-body? */ |
39cb8c41 AR |
2543 | expectBody = chunked || request->content_length > 0; |
2544 | if (!context->mayUseConnection() && expectBody) { | |
2545 | request->body_pipe = conn->expectRequestBody( | |
de48b288 | 2546 | chunked ? -1 : request->content_length); |
5f8252d2 | 2547 | |
2548 | // consume header early so that body pipe gets just the body | |
1cf238db | 2549 | connNoteUseOfBuffer(conn, http->req_sz); |
5f8252d2 | 2550 | notedUseOfBuffer = true; |
2551 | ||
62e76326 | 2552 | /* Is it too large? */ |
39cb8c41 | 2553 | if (!chunked && // if chunked, we will check as we accumulate |
de48b288 | 2554 | clientIsRequestBodyTooLargeForPolicy(request->content_length)) { |
62e76326 | 2555 | clientStreamNode *node = context->getClientReplyContext(); |
0655fa4d | 2556 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2557 | assert (repContext); | |
2558 | repContext->setReplyToError(ERR_TOO_BIG, | |
2559 | HTTP_REQUEST_ENTITY_TOO_LARGE, METHOD_NONE, NULL, | |
cc192b50 | 2560 | conn->peer, http->request, NULL, NULL); |
62e76326 | 2561 | assert(context->http->out.offset == 0); |
2562 | context->pullData(); | |
5f8252d2 | 2563 | goto finish; |
62e76326 | 2564 | } |
2565 | ||
39cb8c41 AR |
2566 | // We may stop producing, comm_close, and/or call setReplyToError() |
2567 | // below, so quit on errors to avoid http->doCallouts() | |
2568 | if (!conn->handleRequestBodyData()) | |
de48b288 | 2569 | goto finish; |
39cb8c41 | 2570 | |
10b06767 AJ |
2571 | if (!request->body_pipe->productionEnded()) |
2572 | conn->readSomeData(); | |
2573 | ||
2574 | context->mayUseConnection(!request->body_pipe->productionEnded()); | |
c4b7a5a9 | 2575 | } |
2576 | ||
de31d06f | 2577 | http->calloutContext = new ClientRequestContext(http); |
2578 | ||
2579 | http->doCallouts(); | |
9e008dda | 2580 | |
4c29340e | 2581 | finish: |
5f8252d2 | 2582 | if (!notedUseOfBuffer) |
1cf238db | 2583 | connNoteUseOfBuffer(conn, http->req_sz); |
52c2c8a8 | 2584 | |
2585 | /* | |
2586 | * DPW 2007-05-18 | |
2587 | * Moved the TCP_RESET feature from clientReplyContext::sendMoreData | |
2588 | * to here because calling comm_reset_close() causes http to | |
2589 | * be freed and the above connNoteUseOfBuffer() would hit an | |
2590 | * assertion, not to mention that we were accessing freed memory. | |
2591 | */ | |
2592 | if (http->request->flags.resetTCP() && conn->fd > -1) { | |
9e008dda AJ |
2593 | debugs(33, 3, HERE << "Sending TCP RST on FD " << conn->fd); |
2594 | conn->flags.readMoreRequests = false; | |
2595 | comm_reset_close(conn->fd); | |
2596 | return; | |
52c2c8a8 | 2597 | } |
c4b7a5a9 | 2598 | } |
2599 | ||
2600 | static void | |
1cf238db | 2601 | connStripBufferWhitespace (ConnStateData * conn) |
c4b7a5a9 | 2602 | { |
2603 | while (conn->in.notYetUsed > 0 && xisspace(conn->in.buf[0])) { | |
62e76326 | 2604 | xmemmove(conn->in.buf, conn->in.buf + 1, conn->in.notYetUsed - 1); |
2605 | --conn->in.notYetUsed; | |
c4b7a5a9 | 2606 | } |
2607 | } | |
2608 | ||
2609 | static int | |
1cf238db | 2610 | connOkToAddRequest(ConnStateData * conn) |
c4b7a5a9 | 2611 | { |
0655fa4d | 2612 | int result = conn->getConcurrentRequestCount() < (Config.onoff.pipeline_prefetch ? 2 : 1); |
62e76326 | 2613 | |
c4b7a5a9 | 2614 | if (!result) { |
bf8fe701 | 2615 | debugs(33, 3, "connOkToAddRequest: FD " << conn->fd << |
2616 | " max concurrent requests reached"); | |
2617 | debugs(33, 5, "connOkToAddRequest: FD " << conn->fd << | |
2618 | " defering new request until one is done"); | |
c4b7a5a9 | 2619 | } |
62e76326 | 2620 | |
c4b7a5a9 | 2621 | return result; |
2622 | } | |
2623 | ||
63be0a78 | 2624 | /** |
f900210a | 2625 | * Attempt to parse one or more requests from the input buffer. |
2626 | * If a request is successfully parsed, even if the next request | |
2627 | * is only partially parsed, it will return TRUE. | |
2628 | * do_next_read is updated to indicate whether a read should be | |
2629 | * scheduled. | |
2630 | */ | |
2631 | static bool | |
1cf238db | 2632 | clientParseRequest(ConnStateData * conn, bool &do_next_read) |
f900210a | 2633 | { |
60745f24 | 2634 | HttpRequestMethod method; |
f900210a | 2635 | ClientSocketContext *context; |
2636 | bool parsed_req = false; | |
8ae66e43 | 2637 | HttpVersion http_ver; |
a5baffba | 2638 | HttpParser hp; |
f900210a | 2639 | |
bf8fe701 | 2640 | debugs(33, 5, "clientParseRequest: FD " << conn->fd << ": attempting to parse"); |
f900210a | 2641 | |
39cb8c41 AR |
2642 | // Loop while we have read bytes that are not needed for producing the body |
2643 | // On errors, bodyPipe may become nil, but readMoreRequests will be cleared | |
2644 | while (conn->in.notYetUsed > 0 && !conn->bodyPipe && | |
de48b288 | 2645 | conn->flags.readMoreRequests) { |
f900210a | 2646 | connStripBufferWhitespace (conn); |
2647 | ||
fc68f6b1 | 2648 | /* Don't try to parse if the buffer is empty */ |
2649 | ||
2650 | if (conn->in.notYetUsed == 0) | |
2651 | break; | |
4681057e | 2652 | |
f900210a | 2653 | /* Limit the number of concurrent requests to 2 */ |
2654 | ||
2655 | if (!connOkToAddRequest(conn)) { | |
2656 | break; | |
2657 | } | |
2658 | ||
2659 | /* Should not be needed anymore */ | |
2660 | /* Terminate the string */ | |
2661 | conn->in.buf[conn->in.notYetUsed] = '\0'; | |
2662 | ||
fc68f6b1 | 2663 | /* Begin the parsing */ |
2664 | HttpParserInit(&hp, conn->in.buf, conn->in.notYetUsed); | |
a5baffba | 2665 | |
f900210a | 2666 | /* Process request */ |
fc68f6b1 | 2667 | PROF_start(parseHttpRequest); |
2668 | ||
a5baffba | 2669 | context = parseHttpRequest(conn, &hp, &method, &http_ver); |
fc68f6b1 | 2670 | |
2671 | PROF_stop(parseHttpRequest); | |
f900210a | 2672 | |
2673 | /* partial or incomplete request */ | |
2674 | if (!context) { | |
39cb8c41 AR |
2675 | // TODO: why parseHttpRequest can just return parseHttpRequestAbort |
2676 | // (which becomes context) but checkHeaderLimits cannot? | |
2677 | conn->checkHeaderLimits(); | |
f900210a | 2678 | break; |
2679 | } | |
2680 | ||
2681 | /* status -1 or 1 */ | |
2682 | if (context) { | |
bf8fe701 | 2683 | debugs(33, 5, "clientParseRequest: FD " << conn->fd << ": parsed a request"); |
f900210a | 2684 | commSetTimeout(conn->fd, Config.Timeout.lifetime, clientLifetimeTimeout, |
2685 | context->http); | |
2686 | ||
a5baffba | 2687 | clientProcessRequest(conn, &hp, context, method, http_ver); |
f900210a | 2688 | |
f900210a | 2689 | parsed_req = true; |
2690 | ||
2691 | if (context->mayUseConnection()) { | |
bf8fe701 | 2692 | debugs(33, 3, "clientParseRequest: Not reading, as this request may need the connection"); |
f900210a | 2693 | do_next_read = 0; |
2694 | break; | |
2695 | } | |
f900210a | 2696 | } |
39cb8c41 | 2697 | } |
fc68f6b1 | 2698 | |
a5baffba | 2699 | /* XXX where to 'finish' the parsing pass? */ |
f900210a | 2700 | |
2701 | return parsed_req; | |
2702 | } | |
2703 | ||
1cf238db | 2704 | void |
2705 | ConnStateData::clientReadRequest(const CommIoCbParams &io) | |
c4b7a5a9 | 2706 | { |
1cf238db | 2707 | debugs(33,5,HERE << "clientReadRequest FD " << io.fd << " size " << io.size); |
f84dd7eb AR |
2708 | Must(reading()); |
2709 | reader = NULL; | |
a46d2c0e | 2710 | bool do_next_read = 1; /* the default _is_ to read data! - adrian */ |
c4b7a5a9 | 2711 | |
1cf238db | 2712 | assert (io.fd == fd); |
c4b7a5a9 | 2713 | |
2714 | /* Bail out quickly on COMM_ERR_CLOSING - close handlers will tidy up */ | |
62e76326 | 2715 | |
1cf238db | 2716 | if (io.flag == COMM_ERR_CLOSING) { |
cc192b50 | 2717 | debugs(33,5, HERE << " FD " << fd << " closing Bailout."); |
c4b7a5a9 | 2718 | return; |
2719 | } | |
62e76326 | 2720 | |
44db45e8 | 2721 | /* |
2722 | * Don't reset the timeout value here. The timeout value will be | |
2723 | * set to Config.Timeout.request by httpAccept() and | |
2724 | * clientWriteComplete(), and should apply to the request as a | |
2725 | * whole, not individual read() calls. Plus, it breaks our | |
2726 | * lame half-close detection | |
2727 | */ | |
1cf238db | 2728 | if (connReadWasError(io.flag, io.size, io.xerrno)) { |
f692498b | 2729 | notifyAllContexts(io.xerrno); |
62e76326 | 2730 | comm_close(fd); |
2731 | return; | |
7a2f978b | 2732 | } |
c4b7a5a9 | 2733 | |
1cf238db | 2734 | if (io.flag == COMM_OK) { |
2735 | if (io.size > 0) { | |
2736 | kb_incr(&statCounter.client_http.kbytes_in, io.size); | |
3b299123 | 2737 | |
39cb8c41 AR |
2738 | // may comm_close or setReplyToError |
2739 | if (!handleReadData(io.buf, io.size)) | |
9e008dda | 2740 | return; |
a31a78fb | 2741 | |
1cf238db | 2742 | } else if (io.size == 0) { |
bf8fe701 | 2743 | debugs(33, 5, "clientReadRequest: FD " << fd << " closed?"); |
62e76326 | 2744 | |
1cf238db | 2745 | if (connFinishedWithConn(io.size)) { |
62e76326 | 2746 | comm_close(fd); |
2747 | return; | |
2748 | } | |
2749 | ||
2750 | /* It might be half-closed, we can't tell */ | |
2751 | fd_table[fd].flags.socket_eof = 1; | |
2752 | ||
a46d2c0e | 2753 | commMarkHalfClosed(fd); |
2754 | ||
2755 | do_next_read = 0; | |
62e76326 | 2756 | |
2757 | fd_note(fd, "half-closed"); | |
2758 | ||
2759 | /* There is one more close check at the end, to detect aborted | |
2760 | * (partial) requests. At this point we can't tell if the request | |
2761 | * is partial. | |
2762 | */ | |
2763 | /* Continue to process previously read data */ | |
2764 | } | |
c4b7a5a9 | 2765 | } |
2766 | ||
94439e4e | 2767 | /* Process next request */ |
1cf238db | 2768 | if (getConcurrentRequestCount() == 0) |
2769 | fd_note(fd, "Reading next request"); | |
c8be6d7b | 2770 | |
1cf238db | 2771 | if (! clientParseRequest(this, do_next_read)) { |
9e008dda AJ |
2772 | if (!isOpen()) |
2773 | return; | |
f900210a | 2774 | /* |
2775 | * If the client here is half closed and we failed | |
2776 | * to parse a request, close the connection. | |
2777 | * The above check with connFinishedWithConn() only | |
2778 | * succeeds _if_ the buffer is empty which it won't | |
2779 | * be if we have an incomplete request. | |
6e1d409c | 2780 | * XXX: This duplicates ClientSocketContext::keepaliveNextRequest |
f900210a | 2781 | */ |
1cf238db | 2782 | if (getConcurrentRequestCount() == 0 && commIsHalfClosed(fd)) { |
bf8fe701 | 2783 | debugs(33, 5, "clientReadRequest: FD " << fd << ": half-closed connection, no completed request parsed, connection closing."); |
f900210a | 2784 | comm_close(fd); |
ee6f0213 | 2785 | return; |
62e76326 | 2786 | } |
f900210a | 2787 | } |
ee6f0213 | 2788 | |
1cf238db | 2789 | if (!isOpen()) |
2e216b1d | 2790 | return; |
2791 | ||
1cf238db | 2792 | clientAfterReadingRequests(do_next_read); |
94439e4e | 2793 | } |
2794 | ||
63be0a78 | 2795 | /** |
2796 | * called when new request data has been read from the socket | |
39cb8c41 AR |
2797 | * |
2798 | * \retval false called comm_close or setReplyToError (the caller should bail) | |
2799 | * \retval true we did not call comm_close or setReplyToError | |
63be0a78 | 2800 | */ |
39cb8c41 | 2801 | bool |
5f8252d2 | 2802 | ConnStateData::handleReadData(char *buf, size_t size) |
94439e4e | 2803 | { |
5f8252d2 | 2804 | char *current_buf = in.addressToReadInto(); |
62e76326 | 2805 | |
5f8252d2 | 2806 | if (buf != current_buf) |
2807 | xmemmove(current_buf, buf, size); | |
3b299123 | 2808 | |
5f8252d2 | 2809 | in.notYetUsed += size; |
fc68f6b1 | 2810 | |
5f8252d2 | 2811 | in.buf[in.notYetUsed] = '\0'; /* Terminate the string */ |
3b299123 | 2812 | |
5f8252d2 | 2813 | // if we are reading a body, stuff data into the body pipe |
2814 | if (bodyPipe != NULL) | |
39cb8c41 AR |
2815 | return handleRequestBodyData(); |
2816 | return true; | |
94439e4e | 2817 | } |
2818 | ||
63be0a78 | 2819 | /** |
bb790702 | 2820 | * called when new request body data has been buffered in in.buf |
63be0a78 | 2821 | * may close the connection if we were closing and piped everything out |
39cb8c41 AR |
2822 | * |
2823 | * \retval false called comm_close or setReplyToError (the caller should bail) | |
2824 | * \retval true we did not call comm_close or setReplyToError | |
63be0a78 | 2825 | */ |
39cb8c41 | 2826 | bool |
5f8252d2 | 2827 | ConnStateData::handleRequestBodyData() |
94439e4e | 2828 | { |
5f8252d2 | 2829 | assert(bodyPipe != NULL); |
2830 | ||
e1381638 | 2831 | size_t putSize = 0; |
3ff65596 | 2832 | |
39cb8c41 AR |
2833 | if (in.bodyParser) { // chunked encoding |
2834 | if (const err_type error = handleChunkedRequestBody(putSize)) { | |
2835 | abortChunkedRequestBody(error); | |
2836 | return false; | |
3ff65596 | 2837 | } |
39cb8c41 | 2838 | } else { // identity encoding |
3ff65596 AR |
2839 | debugs(33,5, HERE << "handling plain request body for FD " << fd); |
2840 | putSize = bodyPipe->putMoreData(in.buf, in.notYetUsed); | |
2841 | if (!bodyPipe->mayNeedMoreData()) { | |
2842 | // BodyPipe will clear us automagically when we produced everything | |
2843 | bodyPipe = NULL; | |
2844 | } | |
2845 | } | |
2846 | ||
2847 | if (putSize > 0) | |
2848 | connNoteUseOfBuffer(this, putSize); | |
5f8252d2 | 2849 | |
3ff65596 | 2850 | if (!bodyPipe) { |
5f8252d2 | 2851 | debugs(33,5, HERE << "produced entire request body for FD " << fd); |
62e76326 | 2852 | |
5f8252d2 | 2853 | if (closing()) { |
2854 | /* we've finished reading like good clients, | |
2855 | * now do the close that initiateClose initiated. | |
5f8252d2 | 2856 | */ |
2857 | comm_close(fd); | |
39cb8c41 AR |
2858 | return false; |
2859 | } | |
2860 | } | |
2861 | ||
2862 | return true; | |
2863 | } | |
2864 | ||
2865 | /// parses available chunked encoded body bytes, checks size, returns errors | |
2866 | err_type | |
2867 | ConnStateData::handleChunkedRequestBody(size_t &putSize) | |
2868 | { | |
2869 | debugs(33,7, HERE << "chunked from FD " << fd << ": " << in.notYetUsed); | |
2870 | ||
2871 | try { // the parser will throw on errors | |
2872 | ||
2873 | if (!in.notYetUsed) // nothing to do (MemBuf::init requires this check) | |
2874 | return ERR_NONE; | |
2875 | ||
2876 | MemBuf raw; // ChunkedCodingParser only works with MemBufs | |
2877 | // add one because MemBuf will assert if it cannot 0-terminate | |
2878 | raw.init(in.notYetUsed, in.notYetUsed+1); | |
2879 | raw.append(in.buf, in.notYetUsed); | |
2880 | ||
2881 | const mb_size_t wasContentSize = raw.contentSize(); | |
2882 | BodyPipeCheckout bpc(*bodyPipe); | |
2883 | const bool parsed = in.bodyParser->parse(&raw, &bpc.buf); | |
2884 | bpc.checkIn(); | |
2885 | putSize = wasContentSize - raw.contentSize(); | |
2886 | ||
2887 | // dechunk then check: the size limit applies to _dechunked_ content | |
2888 | if (clientIsRequestBodyTooLargeForPolicy(bodyPipe->producedSize())) | |
2889 | return ERR_TOO_BIG; | |
2890 | ||
2891 | if (parsed) { | |
2892 | finishDechunkingRequest(true); | |
2893 | Must(!bodyPipe); | |
2894 | return ERR_NONE; // nil bodyPipe implies body end for the caller | |
5f8252d2 | 2895 | } |
39cb8c41 AR |
2896 | |
2897 | // if chunk parser needs data, then the body pipe must need it too | |
2898 | Must(!in.bodyParser->needsMoreData() || bodyPipe->mayNeedMoreData()); | |
2899 | ||
2900 | // if parser needs more space and we can consume nothing, we will stall | |
2901 | Must(!in.bodyParser->needsMoreSpace() || bodyPipe->buf().hasContent()); | |
2902 | } catch (...) { // TODO: be more specific | |
2903 | debugs(33, 3, HERE << "malformed chunks" << bodyPipe->status()); | |
2904 | return ERR_INVALID_REQ; | |
94439e4e | 2905 | } |
39cb8c41 AR |
2906 | |
2907 | debugs(33, 7, HERE << "need more chunked data" << *bodyPipe->status()); | |
2908 | return ERR_NONE; | |
2909 | } | |
2910 | ||
2911 | /// quit on errors related to chunked request body handling | |
2912 | void | |
2913 | ConnStateData::abortChunkedRequestBody(const err_type error) | |
2914 | { | |
2915 | finishDechunkingRequest(false); | |
2916 | ||
2917 | // XXX: The code below works if we fail during initial request parsing, | |
2918 | // but if we fail when the server-side works already, the server may send | |
2919 | // us its response too, causing various assertions. How to prevent that? | |
2920 | #if WE_KNOW_HOW_TO_SEND_ERRORS | |
2921 | ClientSocketContext::Pointer context = getCurrentContext(); | |
2922 | if (context != NULL && !context->http->out.offset) { // output nothing yet | |
2923 | clientStreamNode *node = context->getClientReplyContext(); | |
2924 | clientReplyContext *repContext = dynamic_cast<clientReplyContext*>(node->data.getRaw()); | |
2925 | assert(repContext); | |
2926 | const http_status scode = (error == ERR_TOO_BIG) ? | |
de48b288 | 2927 | HTTP_REQUEST_ENTITY_TOO_LARGE : HTTP_BAD_REQUEST; |
39cb8c41 AR |
2928 | repContext->setReplyToError(error, scode, |
2929 | repContext->http->request->method, | |
2930 | repContext->http->uri, | |
2931 | peer, | |
2932 | repContext->http->request, | |
2933 | in.buf, NULL); | |
2934 | context->pullData(); | |
2935 | } else { | |
2936 | // close or otherwise we may get stuck as nobody will notice the error? | |
de48b288 | 2937 | comm_reset_close(fd); |
39cb8c41 AR |
2938 | } |
2939 | #else | |
2940 | debugs(33, 3, HERE << "aborting chunked request without error " << error); | |
2941 | comm_reset_close(fd); | |
2942 | #endif | |
2943 | flags.readMoreRequests = false; | |
5f8252d2 | 2944 | } |
55e44db9 | 2945 | |
5f8252d2 | 2946 | void |
1cf238db | 2947 | ConnStateData::noteMoreBodySpaceAvailable(BodyPipe::Pointer ) |
5f8252d2 | 2948 | { |
2949 | handleRequestBodyData(); | |
2950 | } | |
2951 | ||
2952 | void | |
1cf238db | 2953 | ConnStateData::noteBodyConsumerAborted(BodyPipe::Pointer ) |
5f8252d2 | 2954 | { |
2955 | if (!closing()) | |
2956 | startClosing("body consumer aborted"); | |
94439e4e | 2957 | } |
2958 | ||
63be0a78 | 2959 | /** general lifetime handler for HTTP requests */ |
1cf238db | 2960 | void |
2961 | ConnStateData::requestTimeout(const CommTimeoutCbParams &io) | |
7a2f978b | 2962 | { |
ad63ceea | 2963 | #if THIS_CONFUSES_PERSISTENT_CONNECTION_AWARE_BROWSERS_AND_USERS |
1cf238db | 2964 | debugs(33, 3, "requestTimeout: FD " << io.fd << ": lifetime is expired."); |
62e76326 | 2965 | |
1cf238db | 2966 | if (COMMIO_FD_WRITECB(io.fd)->active) { |
dec5db5d | 2967 | /* FIXME: If this code is reinstated, check the conn counters, |
2968 | * not the fd table state | |
2969 | */ | |
62e76326 | 2970 | /* |
2971 | * Some data has been sent to the client, just close the FD | |
2972 | */ | |
1cf238db | 2973 | comm_close(io.fd); |
2974 | } else if (nrequests) { | |
62e76326 | 2975 | /* |
2976 | * assume its a persistent connection; just close it | |
2977 | */ | |
1cf238db | 2978 | comm_close(io.fd); |
7a2f978b | 2979 | } else { |
62e76326 | 2980 | /* |
2981 | * Generate an error | |
2982 | */ | |
59a1efb2 | 2983 | ClientHttpRequest **H; |
62e76326 | 2984 | clientStreamNode *node; |
719c7e0a | 2985 | ClientHttpRequest *http = parseHttpRequestAbort(this, "error:Connection%20lifetime%20expired"); |
62e76326 | 2986 | node = http->client_stream.tail->prev->data; |
0655fa4d | 2987 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2988 | assert (repContext); | |
2989 | repContext->setReplyToError(ERR_LIFETIME_EXP, | |
1cf238db | 2990 | HTTP_REQUEST_TIMEOUT, METHOD_NONE, "N/A", &peer.sin_addr, |
0655fa4d | 2991 | NULL, NULL, NULL); |
62e76326 | 2992 | /* No requests can be outstanded */ |
1cf238db | 2993 | assert(chr == NULL); |
62e76326 | 2994 | /* add to the client request queue */ |
2995 | ||
3d0ac046 | 2996 | for (H = &chr; *H; H = &(*H)->next); |
62e76326 | 2997 | *H = http; |
2998 | ||
2999 | clientStreamRead(http->client_stream.tail->data, http, 0, | |
3000 | HTTP_REQBUF_SZ, context->reqbuf); | |
3001 | ||
3002 | /* | |
3003 | * if we don't close() here, we still need a timeout handler! | |
3004 | */ | |
9e008dda | 3005 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 AR |
3006 | AsyncCall::Pointer timeoutCall = JobCallback(33, 5, |
3007 | TimeoutDialer, this, ConnStateData::requestTimeout); | |
9e008dda | 3008 | commSetTimeout(io.fd, 30, timeoutCall); |
62e76326 | 3009 | |
3010 | /* | |
3011 | * Aha, but we don't want a read handler! | |
3012 | */ | |
1cf238db | 3013 | commSetSelect(io.fd, COMM_SELECT_READ, NULL, NULL, 0); |
7a2f978b | 3014 | } |
62e76326 | 3015 | |
af57a2e3 | 3016 | #else |
3017 | /* | |
62e76326 | 3018 | * Just close the connection to not confuse browsers |
3019 | * using persistent connections. Some browsers opens | |
3020 | * an connection and then does not use it until much | |
3021 | * later (presumeably because the request triggering | |
3022 | * the open has already been completed on another | |
3023 | * connection) | |
3024 | */ | |
1cf238db | 3025 | debugs(33, 3, "requestTimeout: FD " << io.fd << ": lifetime is expired."); |
62e76326 | 3026 | |
1cf238db | 3027 | comm_close(io.fd); |
62e76326 | 3028 | |
af57a2e3 | 3029 | #endif |
7a2f978b | 3030 | } |
3031 | ||
b5c39993 | 3032 | static void |
3033 | clientLifetimeTimeout(int fd, void *data) | |
3034 | { | |
59a1efb2 | 3035 | ClientHttpRequest *http = (ClientHttpRequest *)data; |
f692498b | 3036 | debugs(33, 1, "WARNING: Closing client " << " connection due to lifetime timeout"); |
bf8fe701 | 3037 | debugs(33, 1, "\t" << http->uri); |
f692498b | 3038 | http->al.http.timedout = true; |
b5c39993 | 3039 | comm_close(fd); |
3040 | } | |
3041 | ||
c8be6d7b | 3042 | ConnStateData * |
b7ac5457 | 3043 | connStateCreate(const Ip::Address &peer, const Ip::Address &me, int fd, http_port_list *port) |
c8be6d7b | 3044 | { |
a46d2c0e | 3045 | ConnStateData *result = new ConnStateData; |
2ad20b4f | 3046 | |
cc192b50 | 3047 | result->peer = peer; |
3048 | result->log_addr = peer; | |
055421ee | 3049 | result->log_addr.ApplyMask(Config.Addrs.client_netmask); |
cc192b50 | 3050 | result->me = me; |
c8be6d7b | 3051 | result->fd = fd; |
e6ccf245 | 3052 | result->in.buf = (char *)memAllocBuf(CLIENT_REQ_BUF_SZ, &result->in.allocatedSize); |
3f38a55e | 3053 | result->port = cbdataReference(port); |
62e76326 | 3054 | |
9e008dda | 3055 | if (port->intercepted || port->spoof_client_ip) { |
b7ac5457 | 3056 | Ip::Address client, dst; |
62e76326 | 3057 | |
b7ac5457 | 3058 | if (Ip::Interceptor.NatLookup(fd, me, peer, client, dst) == 0) { |
482a5c64 AJ |
3059 | result->me = client; |
3060 | result->peer = dst; | |
a46d2c0e | 3061 | result->transparent(true); |
62e76326 | 3062 | } |
3f38a55e | 3063 | } |
62e76326 | 3064 | |
5529ca8a | 3065 | if (port->disable_pmtu_discovery != DISABLE_PMTU_OFF && |
9e008dda | 3066 | (result->transparent() || port->disable_pmtu_discovery == DISABLE_PMTU_ALWAYS)) { |
5529ca8a | 3067 | #if defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DONT) |
3068 | int i = IP_PMTUDISC_DONT; | |
3069 | setsockopt(fd, SOL_IP, IP_MTU_DISCOVER, &i, sizeof i); | |
3070 | ||
3071 | #else | |
3072 | ||
3073 | static int reported = 0; | |
3074 | ||
3075 | if (!reported) { | |
bf8fe701 | 3076 | debugs(33, 1, "Notice: httpd_accel_no_pmtu_disc not supported on your platform"); |
5529ca8a | 3077 | reported = 1; |
3078 | } | |
3079 | ||
3080 | #endif | |
3081 | ||
3082 | } | |
3083 | ||
48962ba8 | 3084 | result->flags.readMoreRequests = true; |
c8be6d7b | 3085 | return result; |
3086 | } | |
3087 | ||
63be0a78 | 3088 | /** Handle a new connection on HTTP socket. */ |
7a2f978b | 3089 | void |
ee0989f2 | 3090 | httpAccept(int sock, int newfd, ConnectionDetail *details, |
62e76326 | 3091 | comm_err_t flag, int xerrno, void *data) |
7a2f978b | 3092 | { |
3f38a55e | 3093 | http_port_list *s = (http_port_list *)data; |
7a2f978b | 3094 | ConnStateData *connState = NULL; |
02d1422b | 3095 | |
62e76326 | 3096 | if (flag != COMM_OK) { |
bf8fe701 | 3097 | debugs(33, 1, "httpAccept: FD " << sock << ": accept failure: " << xstrerr(xerrno)); |
62e76326 | 3098 | return; |
3099 | } | |
3100 | ||
bf8fe701 | 3101 | debugs(33, 4, "httpAccept: FD " << newfd << ": accepted"); |
62e76326 | 3102 | fd_note(newfd, "client http connect"); |
1cf238db | 3103 | connState = connStateCreate(&details->peer, &details->me, newfd, s); |
3104 | ||
3105 | typedef CommCbMemFunT<ConnStateData, CommCloseCbParams> Dialer; | |
4299f876 | 3106 | AsyncCall::Pointer call = JobCallback(33, 5, |
4cb2536f | 3107 | Dialer, connState, ConnStateData::connStateClosed); |
1cf238db | 3108 | comm_add_close_handler(newfd, call); |
62e76326 | 3109 | |
3110 | if (Config.onoff.log_fqdn) | |
cc192b50 | 3111 | fqdncache_gethostbyaddr(details->peer, FQDN_LOOKUP_IF_MISS); |
62e76326 | 3112 | |
9e008dda | 3113 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 3114 | AsyncCall::Pointer timeoutCall = JobCallback(33, 5, |
4cb2536f | 3115 | TimeoutDialer, connState, ConnStateData::requestTimeout); |
9e008dda | 3116 | commSetTimeout(newfd, Config.Timeout.read, timeoutCall); |
62e76326 | 3117 | |
3898f57f | 3118 | #if USE_IDENT |
4daaf3cb AJ |
3119 | if (Ident::TheConfig.identLookup) { |
3120 | ACLFilledChecklist identChecklist(Ident::TheConfig.identLookup, NULL, NULL); | |
b50e327b AJ |
3121 | identChecklist.src_addr = details->peer; |
3122 | identChecklist.my_addr = details->me; | |
b50e327b | 3123 | if (identChecklist.fastCheck()) |
4daaf3cb | 3124 | Ident::Start(details->me, details->peer, clientIdentDone, connState); |
b50e327b | 3125 | } |
3898f57f | 3126 | #endif |
62e76326 | 3127 | |
a98c2da5 AJ |
3128 | #if USE_SQUID_EUI |
3129 | if (Eui::TheConfig.euiLookup) { | |
3130 | if (details->peer.IsIPv4()) { | |
3131 | connState->peer_eui48.lookup(details->peer); | |
05320519 | 3132 | } else if (details->peer.IsIPv6()) { |
a98c2da5 AJ |
3133 | connState->peer_eui64.lookup(details->peer); |
3134 | } | |
3135 | } | |
3136 | #endif | |
3137 | ||
b2130d58 | 3138 | if (s->tcp_keepalive.enabled) { |
9e008dda | 3139 | commSetTcpKeepalive(newfd, s->tcp_keepalive.idle, s->tcp_keepalive.interval, s->tcp_keepalive.timeout); |
b2130d58 | 3140 | } |
3141 | ||
a46d2c0e | 3142 | connState->readSomeData(); |
62e76326 | 3143 | |
cc192b50 | 3144 | clientdbEstablished(details->peer, 1); |
62e76326 | 3145 | |
3146 | incoming_sockets_accepted++; | |
7a2f978b | 3147 | } |
3148 | ||
1f7c9178 | 3149 | #if USE_SSL |
3150 | ||
63be0a78 | 3151 | /** Create SSL connection structure and update fd_table */ |
ae7ff0b8 | 3152 | static SSL * |
3153 | httpsCreate(int newfd, ConnectionDetail *details, SSL_CTX *sslContext) | |
3154 | { | |
3155 | SSL *ssl = SSL_new(sslContext); | |
3156 | ||
3157 | if (!ssl) { | |
3158 | const int ssl_error = ERR_get_error(); | |
3159 | debugs(83, 1, "httpsAccept: Error allocating handle: " << ERR_error_string(ssl_error, NULL) ); | |
3160 | comm_close(newfd); | |
3161 | return NULL; | |
3162 | } | |
3163 | ||
3164 | SSL_set_fd(ssl, newfd); | |
3165 | fd_table[newfd].ssl = ssl; | |
3166 | fd_table[newfd].read_method = &ssl_read_method; | |
3167 | fd_table[newfd].write_method = &ssl_write_method; | |
3168 | ||
3169 | debugs(33, 5, "httpsCreate: will negotate SSL on FD " << newfd); | |
3170 | fd_note(newfd, "client https start"); | |
3171 | ||
3172 | return ssl; | |
3173 | } | |
3174 | ||
63be0a78 | 3175 | /** negotiate an SSL connection */ |
1f7c9178 | 3176 | static void |
3177 | clientNegotiateSSL(int fd, void *data) | |
3178 | { | |
e6ccf245 | 3179 | ConnStateData *conn = (ConnStateData *)data; |
1f7c9178 | 3180 | X509 *client_cert; |
a7ad6e4e | 3181 | SSL *ssl = fd_table[fd].ssl; |
1f7c9178 | 3182 | int ret; |
3183 | ||
a7ad6e4e | 3184 | if ((ret = SSL_accept(ssl)) <= 0) { |
62e76326 | 3185 | int ssl_error = SSL_get_error(ssl, ret); |
3186 | ||
3187 | switch (ssl_error) { | |
3188 | ||
3189 | case SSL_ERROR_WANT_READ: | |
3190 | commSetSelect(fd, COMM_SELECT_READ, clientNegotiateSSL, conn, 0); | |
3191 | return; | |
3192 | ||
3193 | case SSL_ERROR_WANT_WRITE: | |
3194 | commSetSelect(fd, COMM_SELECT_WRITE, clientNegotiateSSL, conn, 0); | |
3195 | return; | |
3196 | ||
6de9e64b | 3197 | case SSL_ERROR_SYSCALL: |
3198 | ||
3199 | if (ret == 0) { | |
bf8fe701 | 3200 | debugs(83, 2, "clientNegotiateSSL: Error negotiating SSL connection on FD " << fd << ": Aborted by client"); |
6de9e64b | 3201 | comm_close(fd); |
3202 | return; | |
3203 | } else { | |
3204 | int hard = 1; | |
3205 | ||
3206 | if (errno == ECONNRESET) | |
3207 | hard = 0; | |
3208 | ||
9e008dda | 3209 | debugs(83, hard ? 1 : 2, "clientNegotiateSSL: Error negotiating SSL connection on FD " << |
bf8fe701 | 3210 | fd << ": " << strerror(errno) << " (" << errno << ")"); |
6de9e64b | 3211 | |
3212 | comm_close(fd); | |
3213 | ||
3214 | return; | |
3215 | } | |
3216 | ||
3217 | case SSL_ERROR_ZERO_RETURN: | |
bf8fe701 | 3218 | debugs(83, 1, "clientNegotiateSSL: Error negotiating SSL connection on FD " << fd << ": Closed by client"); |
6de9e64b | 3219 | comm_close(fd); |
3220 | return; | |
3221 | ||
62e76326 | 3222 | default: |
9e008dda AJ |
3223 | debugs(83, 1, "clientNegotiateSSL: Error negotiating SSL connection on FD " << |
3224 | fd << ": " << ERR_error_string(ERR_get_error(), NULL) << | |
3225 | " (" << ssl_error << "/" << ret << ")"); | |
62e76326 | 3226 | comm_close(fd); |
3227 | return; | |
3228 | } | |
3229 | ||
3230 | /* NOTREACHED */ | |
1f7c9178 | 3231 | } |
62e76326 | 3232 | |
6de9e64b | 3233 | if (SSL_session_reused(ssl)) { |
bf8fe701 | 3234 | debugs(83, 2, "clientNegotiateSSL: Session " << SSL_get_session(ssl) << |
3235 | " reused on FD " << fd << " (" << fd_table[fd].ipaddr << ":" << (int)fd_table[fd].remote_port << ")"); | |
6de9e64b | 3236 | } else { |
3237 | if (do_debug(83, 4)) { | |
3238 | /* Write out the SSL session details.. actually the call below, but | |
3239 | * OpenSSL headers do strange typecasts confusing GCC.. */ | |
3240 | /* PEM_write_SSL_SESSION(debug_log, SSL_get_session(ssl)); */ | |
afdd443f | 3241 | #if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x00908000L |
9f3de01a | 3242 | 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 | 3243 | |
0fd2205b | 3244 | #elif (ALLOW_ALWAYS_SSL_SESSION_DETAIL == 1) |
2930f303 | 3245 | |
0fd2205b | 3246 | /* When using gcc 3.3.x and OpenSSL 0.9.7x sometimes a compile error can occur here. |
3247 | * This is caused by an unpredicatble gcc behaviour on a cast of the first argument | |
3248 | * of PEM_ASN1_write(). For this reason this code section is disabled. To enable it, | |
3249 | * define ALLOW_ALWAYS_SSL_SESSION_DETAIL=1. | |
3250 | * Because there are two possible usable cast, if you get an error here, try the other | |
3251 | * commented line. */ | |
3252 | ||
3253 | PEM_ASN1_write((int(*)())i2d_SSL_SESSION, PEM_STRING_SSL_SESSION, debug_log, (char *)SSL_get_session(ssl), NULL,NULL,0,NULL,NULL); | |
3254 | /* PEM_ASN1_write((int(*)(...))i2d_SSL_SESSION, PEM_STRING_SSL_SESSION, debug_log, (char *)SSL_get_session(ssl), NULL,NULL,0,NULL,NULL); */ | |
2930f303 | 3255 | |
0e33d58c | 3256 | #else |
3257 | ||
bf8fe701 | 3258 | debugs(83, 4, "With " OPENSSL_VERSION_TEXT ", session details are available only defining ALLOW_ALWAYS_SSL_SESSION_DETAIL=1 in the source." ); |
0fd2205b | 3259 | |
0e33d58c | 3260 | #endif |
6de9e64b | 3261 | /* Note: This does not automatically fflush the log file.. */ |
3262 | } | |
3263 | ||
bf8fe701 | 3264 | debugs(83, 2, "clientNegotiateSSL: New session " << |
3265 | SSL_get_session(ssl) << " on FD " << fd << " (" << | |
3266 | fd_table[fd].ipaddr << ":" << (int)fd_table[fd].remote_port << | |
3267 | ")"); | |
6de9e64b | 3268 | } |
3269 | ||
bf8fe701 | 3270 | debugs(83, 3, "clientNegotiateSSL: FD " << fd << " negotiated cipher " << |
3271 | SSL_get_cipher(ssl)); | |
1f7c9178 | 3272 | |
6de9e64b | 3273 | client_cert = SSL_get_peer_certificate(ssl); |
62e76326 | 3274 | |
1f7c9178 | 3275 | if (client_cert != NULL) { |
bf8fe701 | 3276 | debugs(83, 3, "clientNegotiateSSL: FD " << fd << |
3277 | " client certificate: subject: " << | |
3278 | X509_NAME_oneline(X509_get_subject_name(client_cert), 0, 0)); | |
3279 | ||
3280 | debugs(83, 3, "clientNegotiateSSL: FD " << fd << | |
3281 | " client certificate: issuer: " << | |
3282 | X509_NAME_oneline(X509_get_issuer_name(client_cert), 0, 0)); | |
1f7c9178 | 3283 | |
1f7c9178 | 3284 | |
62e76326 | 3285 | X509_free(client_cert); |
1f7c9178 | 3286 | } else { |
bf8fe701 | 3287 | debugs(83, 5, "clientNegotiateSSL: FD " << fd << |
3288 | " has no certificate."); | |
1f7c9178 | 3289 | } |
3290 | ||
a46d2c0e | 3291 | conn->readSomeData(); |
1f7c9178 | 3292 | } |
3293 | ||
63be0a78 | 3294 | /** handle a new HTTPS connection */ |
1f7c9178 | 3295 | static void |
15595aab | 3296 | httpsAccept(int sock, int newfd, ConnectionDetail *details, |
62e76326 | 3297 | comm_err_t flag, int xerrno, void *data) |
1f7c9178 | 3298 | { |
3f38a55e | 3299 | https_port_list *s = (https_port_list *)data; |
3300 | SSL_CTX *sslContext = s->sslContext; | |
c4b7a5a9 | 3301 | |
3302 | if (flag != COMM_OK) { | |
62e76326 | 3303 | errno = xerrno; |
bf8fe701 | 3304 | debugs(33, 1, "httpsAccept: FD " << sock << ": accept failure: " << xstrerr(xerrno)); |
62e76326 | 3305 | return; |
c4b7a5a9 | 3306 | } |
62e76326 | 3307 | |
ae7ff0b8 | 3308 | SSL *ssl = NULL; |
3309 | if (!(ssl = httpsCreate(newfd, details, sslContext))) | |
62e76326 | 3310 | return; |
94c3d66f | 3311 | |
1cf238db | 3312 | debugs(33, 5, "httpsAccept: FD " << newfd << " accepted, starting SSL negotiation."); |
3313 | fd_note(newfd, "client https connect"); | |
ae7ff0b8 | 3314 | ConnStateData *connState = connStateCreate(details->peer, details->me, |
9e008dda | 3315 | newfd, &s->http); |
1cf238db | 3316 | typedef CommCbMemFunT<ConnStateData, CommCloseCbParams> Dialer; |
4299f876 | 3317 | AsyncCall::Pointer call = JobCallback(33, 5, |
4cb2536f | 3318 | Dialer, connState, ConnStateData::connStateClosed); |
1cf238db | 3319 | comm_add_close_handler(newfd, call); |
62e76326 | 3320 | |
c4b7a5a9 | 3321 | if (Config.onoff.log_fqdn) |
cc192b50 | 3322 | fqdncache_gethostbyaddr(details->peer, FQDN_LOOKUP_IF_MISS); |
62e76326 | 3323 | |
9e008dda | 3324 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 AR |
3325 | AsyncCall::Pointer timeoutCall = JobCallback(33, 5, |
3326 | TimeoutDialer, connState, ConnStateData::requestTimeout); | |
9e008dda | 3327 | commSetTimeout(newfd, Config.Timeout.request, timeoutCall); |
62e76326 | 3328 | |
1f7c9178 | 3329 | #if USE_IDENT |
4daaf3cb AJ |
3330 | if (Ident::TheConfig.identLookup) { |
3331 | ACLFilledChecklist identChecklist(Ident::TheConfig.identLookup, NULL, NULL); | |
b50e327b AJ |
3332 | identChecklist.src_addr = details->peer; |
3333 | identChecklist.my_addr = details->me; | |
b50e327b | 3334 | if (identChecklist.fastCheck()) |
4daaf3cb | 3335 | Ident::Start(details->me, details->peer, clientIdentDone, connState); |
b50e327b | 3336 | } |
1f7c9178 | 3337 | #endif |
62e76326 | 3338 | |
b2130d58 | 3339 | if (s->http.tcp_keepalive.enabled) { |
9e008dda | 3340 | commSetTcpKeepalive(newfd, s->http.tcp_keepalive.idle, s->http.tcp_keepalive.interval, s->http.tcp_keepalive.timeout); |
b2130d58 | 3341 | } |
3342 | ||
c4b7a5a9 | 3343 | commSetSelect(newfd, COMM_SELECT_READ, clientNegotiateSSL, connState, 0); |
62e76326 | 3344 | |
cc192b50 | 3345 | clientdbEstablished(details->peer, 1); |
62e76326 | 3346 | |
3f38a55e | 3347 | incoming_sockets_accepted++; |
1f7c9178 | 3348 | } |
3349 | ||
ae7ff0b8 | 3350 | bool |
3351 | ConnStateData::switchToHttps() | |
3352 | { | |
3353 | assert(!switchedToHttps_); | |
3354 | ||
3355 | //HTTPMSGLOCK(currentobject->http->request); | |
3356 | assert(areAllContextsForThisConnection()); | |
3357 | freeAllContexts(); | |
3358 | //currentobject->connIsFinished(); | |
3359 | ||
3360 | debugs(33, 5, HERE << "converting FD " << fd << " to SSL"); | |
3361 | ||
3362 | // fake a ConnectionDetail object; XXX: make ConnState a ConnectionDetail? | |
3363 | ConnectionDetail detail; | |
3364 | detail.me = me; | |
3365 | detail.peer = peer; | |
3366 | ||
3367 | SSL_CTX *sslContext = port->sslContext; | |
3368 | SSL *ssl = NULL; | |
3369 | if (!(ssl = httpsCreate(fd, &detail, sslContext))) | |
3370 | return false; | |
3371 | ||
3372 | // commSetTimeout() was called for this request before we switched. | |
3373 | ||
3374 | // Disable the client read handler until peer selection is complete | |
3375 | commSetSelect(fd, COMM_SELECT_READ, NULL, NULL, 0); | |
3376 | ||
3377 | commSetSelect(fd, COMM_SELECT_READ, clientNegotiateSSL, this, 0); | |
3378 | ||
3379 | switchedToHttps_ = true; | |
3380 | return true; | |
3381 | } | |
3382 | ||
1f7c9178 | 3383 | #endif /* USE_SSL */ |
3384 | ||
00516be1 AR |
3385 | /// check FD after clientHttp[s]ConnectionOpened, adjust HttpSockets as needed |
3386 | static bool | |
3387 | OpenedHttpSocket(int fd, const char *msgIfFail) | |
3388 | { | |
3389 | if (fd < 0) { | |
3390 | Must(NHttpSockets > 0); // we tried to open some | |
3391 | --NHttpSockets; // there will be fewer sockets than planned | |
3392 | Must(HttpSockets[NHttpSockets] < 0); // no extra fds received | |
3393 | ||
3394 | if (!NHttpSockets) // we could not open any listen sockets at all | |
3395 | fatal(msgIfFail); | |
3396 | ||
3397 | return false; | |
3398 | } | |
3399 | return true; | |
3400 | } | |
3401 | ||
3402 | /// find any unused HttpSockets[] slot and store fd there or return false | |
3403 | static bool | |
3404 | AddOpenedHttpSocket(int fd) | |
3405 | { | |
3406 | bool found = false; | |
3407 | for (int i = 0; i < NHttpSockets && !found; i++) { | |
3408 | if ((found = HttpSockets[i] < 0)) | |
3409 | HttpSockets[i] = fd; | |
3410 | } | |
3411 | return found; | |
3412 | } | |
15df8349 | 3413 | |
d193a436 | 3414 | static void |
15df8349 | 3415 | clientHttpConnectionsOpen(void) |
3416 | { | |
cc192b50 | 3417 | http_port_list *s = NULL; |
ae7ff0b8 | 3418 | #if USE_SSL |
3419 | int bumpCount = 0; // counts http_ports with sslBump option | |
3420 | #endif | |
62e76326 | 3421 | |
7e3ce7b9 | 3422 | for (s = Config.Sockaddr.http; s; s = s->next) { |
62e76326 | 3423 | if (MAXHTTPPORTS == NHttpSockets) { |
bf8fe701 | 3424 | debugs(1, 1, "WARNING: You have too many 'http_port' lines."); |
3425 | debugs(1, 1, " The limit is " << MAXHTTPPORTS); | |
62e76326 | 3426 | continue; |
3427 | } | |
3428 | ||
ae7ff0b8 | 3429 | #if USE_SSL |
3430 | if (s->sslBump && s->sslContext == NULL) { | |
3431 | debugs(1, 1, "Will not bump SSL at http_port " << | |
3432 | s->http.s << " due to SSL initialization failure."); | |
3433 | s->sslBump = 0; | |
3434 | } | |
3435 | if (s->sslBump) | |
3436 | ++bumpCount; | |
3437 | #endif | |
3438 | ||
04f55905 AJ |
3439 | /* AYJ: 2009-12-27: bit bumpy. new ListenStateData(...) should be doing all the Comm:: stuff ... */ |
3440 | ||
fe090a86 | 3441 | const int openFlags = COMM_NONBLOCKING | |
5667a628 | 3442 | (s->spoof_client_ip ? COMM_TRANSPARENT : 0); |
c303f6e3 | 3443 | |
fe090a86 | 3444 | AsyncCall::Pointer callback = asyncCall(33,2, |
5667a628 AR |
3445 | "clientHttpConnectionOpened", |
3446 | ListeningStartedDialer(&clientHttpConnectionOpened, s)); | |
fe090a86 | 3447 | Ipc::StartListening(SOCK_STREAM, IPPROTO_TCP, s->s, openFlags, |
5667a628 | 3448 | Ipc::fdnHttpSocket, callback); |
62e76326 | 3449 | |
fe090a86 | 3450 | HttpSockets[NHttpSockets++] = -1; // set in clientHttpConnectionOpened |
15df8349 | 3451 | } |
ae7ff0b8 | 3452 | |
3453 | #if USE_SSL | |
3454 | if (bumpCount && !Config.accessList.ssl_bump) | |
3455 | debugs(33, 1, "WARNING: http_port(s) with SslBump found, but no " << | |
9e008dda AJ |
3456 | std::endl << "\tssl_bump ACL configured. No requests will be " << |
3457 | "bumped."); | |
ae7ff0b8 | 3458 | #endif |
d193a436 | 3459 | } |
3460 | ||
00516be1 | 3461 | /// process clientHttpConnectionsOpen result |
fe090a86 AR |
3462 | static void |
3463 | clientHttpConnectionOpened(int fd, int, http_port_list *s) | |
3464 | { | |
00516be1 | 3465 | if (!OpenedHttpSocket(fd, "Cannot open HTTP Port")) |
fe090a86 | 3466 | return; |
fe090a86 AR |
3467 | |
3468 | Must(s); | |
62e76326 | 3469 | |
5667a628 AR |
3470 | AsyncCall::Pointer call = commCbCall(5,5, "SomeCommAcceptHandler(httpAccept)", |
3471 | CommAcceptCbPtrFun(httpAccept, s)); | |
62e76326 | 3472 | |
5667a628 | 3473 | s->listener = new Comm::ListenStateData(fd, call, true); |
62e76326 | 3474 | |
5667a628 AR |
3475 | debugs(1, 1, "Accepting " << |
3476 | (s->intercepted ? " intercepted" : "") << | |
3477 | (s->spoof_client_ip ? " spoofing" : "") << | |
3478 | (s->sslBump ? " bumpy" : "") << | |
3479 | (s->accel ? " accelerated" : "") | |
3480 | << " HTTP connections at " << s->s | |
3481 | << ", FD " << fd << "." ); | |
62e76326 | 3482 | |
00516be1 | 3483 | Must(AddOpenedHttpSocket(fd)); // otherwise, we have received a fd we did not ask for |
d193a436 | 3484 | } |
3485 | ||
3486 | #if USE_SSL | |
3487 | static void | |
3488 | clientHttpsConnectionsOpen(void) | |
3489 | { | |
3490 | https_port_list *s; | |
62e76326 | 3491 | |
3f38a55e | 3492 | for (s = Config.Sockaddr.https; s; s = (https_port_list *)s->http.next) { |
62e76326 | 3493 | if (MAXHTTPPORTS == NHttpSockets) { |
ae7ff0b8 | 3494 | debugs(1, 1, "Ignoring 'https_port' lines exceeding the limit."); |
3495 | debugs(1, 1, "The limit is " << MAXHTTPPORTS << " HTTPS ports."); | |
62e76326 | 3496 | continue; |
3497 | } | |
3498 | ||
f9ad0106 | 3499 | if (s->sslContext == NULL) { |
ae7ff0b8 | 3500 | debugs(1, 1, "Ignoring https_port " << s->http.s << |
3501 | " due to SSL initialization failure."); | |
3502 | continue; | |
f9ad0106 | 3503 | } |
3504 | ||
00516be1 | 3505 | AsyncCall::Pointer call = asyncCall(33, 2, "clientHttpsConnectionOpened", |
5667a628 | 3506 | ListeningStartedDialer(&clientHttpsConnectionOpened, &s->http)); |
62e76326 | 3507 | |
00516be1 | 3508 | Ipc::StartListening(SOCK_STREAM, IPPROTO_TCP, s->http.s, COMM_NONBLOCKING, |
5667a628 | 3509 | Ipc::fdnHttpsSocket, call); |
62e76326 | 3510 | |
00516be1 AR |
3511 | HttpSockets[NHttpSockets++] = -1; |
3512 | } | |
3513 | } | |
62e76326 | 3514 | |
00516be1 AR |
3515 | /// process clientHttpsConnectionsOpen result |
3516 | static void | |
3517 | clientHttpsConnectionOpened(int fd, int, http_port_list *s) | |
3518 | { | |
3519 | if (!OpenedHttpSocket(fd, "Cannot open HTTPS Port")) | |
3520 | return; | |
62e76326 | 3521 | |
00516be1 | 3522 | Must(s); |
62e76326 | 3523 | |
5667a628 AR |
3524 | AsyncCall::Pointer call = commCbCall(5,5, "SomeCommAcceptHandler(httpsAccept)", |
3525 | CommAcceptCbPtrFun(httpsAccept, s)); | |
62e76326 | 3526 | |
5667a628 | 3527 | s->listener = new Comm::ListenStateData(fd, call, true); |
62e76326 | 3528 | |
5667a628 | 3529 | debugs(1, 1, "Accepting HTTPS connections at " << s->s << ", FD " << fd << "."); |
62e76326 | 3530 | |
00516be1 | 3531 | Must(AddOpenedHttpSocket(fd)); // otherwise, we have received a fd we did not ask for |
d193a436 | 3532 | } |
3533 | ||
3534 | #endif | |
3535 | ||
3536 | void | |
3537 | clientOpenListenSockets(void) | |
3538 | { | |
3539 | clientHttpConnectionsOpen(); | |
3540 | #if USE_SSL | |
3541 | clientHttpsConnectionsOpen(); | |
1f7c9178 | 3542 | #endif |
62e76326 | 3543 | |
15df8349 | 3544 | if (NHttpSockets < 1) |
598c41da | 3545 | fatal("No HTTP or HTTPS ports configured"); |
15df8349 | 3546 | } |
edce4d98 | 3547 | |
c0fbae16 | 3548 | void |
3549 | clientHttpConnectionsClose(void) | |
3550 | { | |
04f55905 AJ |
3551 | for (http_port_list *s = Config.Sockaddr.http; s; s = s->next) { |
3552 | if (s->listener) { | |
3553 | debugs(1, 1, "FD " << s->listener->fd << " Closing HTTP connection"); | |
3554 | delete s->listener; | |
3555 | s->listener = NULL; | |
3556 | } | |
3557 | } | |
62e76326 | 3558 | |
04f55905 AJ |
3559 | #if USE_SSL |
3560 | for (http_port_list *s = Config.Sockaddr.https; s; s = s->next) { | |
3561 | if (s->listener) { | |
3562 | debugs(1, 1, "FD " << s->listener->fd << " Closing HTTPS connection"); | |
3563 | delete s->listener; | |
3564 | s->listener = NULL; | |
62e76326 | 3565 | } |
c0fbae16 | 3566 | } |
04f55905 AJ |
3567 | #endif |
3568 | ||
3569 | // TODO see if we can drop HttpSockets array entirely */ | |
3570 | for (int i = 0; i < NHttpSockets; i++) { | |
3571 | HttpSockets[i] = -1; | |
3572 | } | |
62e76326 | 3573 | |
c0fbae16 | 3574 | NHttpSockets = 0; |
3575 | } | |
f66a9ef4 | 3576 | |
3577 | int | |
190154cf | 3578 | varyEvaluateMatch(StoreEntry * entry, HttpRequest * request) |
f66a9ef4 | 3579 | { |
3580 | const char *vary = request->vary_headers; | |
a9925b40 | 3581 | int has_vary = entry->getReply()->header.has(HDR_VARY); |
f66a9ef4 | 3582 | #if X_ACCELERATOR_VARY |
62e76326 | 3583 | |
edce4d98 | 3584 | has_vary |= |
a9925b40 | 3585 | entry->getReply()->header.has(HDR_X_ACCELERATOR_VARY); |
f66a9ef4 | 3586 | #endif |
62e76326 | 3587 | |
f66a9ef4 | 3588 | if (!has_vary || !entry->mem_obj->vary_headers) { |
62e76326 | 3589 | if (vary) { |
3590 | /* Oops... something odd is going on here.. */ | |
9e008dda AJ |
3591 | debugs(33, 1, "varyEvaluateMatch: Oops. Not a Vary object on second attempt, '" << |
3592 | entry->mem_obj->url << "' '" << vary << "'"); | |
62e76326 | 3593 | safe_free(request->vary_headers); |
3594 | return VARY_CANCEL; | |
3595 | } | |
3596 | ||
3597 | if (!has_vary) { | |
3598 | /* This is not a varying object */ | |
3599 | return VARY_NONE; | |
3600 | } | |
3601 | ||
3602 | /* virtual "vary" object found. Calculate the vary key and | |
3603 | * continue the search | |
3604 | */ | |
3605 | vary = httpMakeVaryMark(request, entry->getReply()); | |
3606 | ||
3607 | if (vary) { | |
3608 | request->vary_headers = xstrdup(vary); | |
3609 | return VARY_OTHER; | |
3610 | } else { | |
3611 | /* Ouch.. we cannot handle this kind of variance */ | |
3612 | /* XXX This cannot really happen, but just to be complete */ | |
3613 | return VARY_CANCEL; | |
3614 | } | |
f66a9ef4 | 3615 | } else { |
62e76326 | 3616 | if (!vary) { |
3617 | vary = httpMakeVaryMark(request, entry->getReply()); | |
3618 | ||
3619 | if (vary) | |
3620 | request->vary_headers = xstrdup(vary); | |
3621 | } | |
3622 | ||
3623 | if (!vary) { | |
3624 | /* Ouch.. we cannot handle this kind of variance */ | |
3625 | /* XXX This cannot really happen, but just to be complete */ | |
3626 | return VARY_CANCEL; | |
3627 | } else if (strcmp(vary, entry->mem_obj->vary_headers) == 0) { | |
3628 | return VARY_MATCH; | |
3629 | } else { | |
3630 | /* Oops.. we have already been here and still haven't | |
3631 | * found the requested variant. Bail out | |
3632 | */ | |
bf8fe701 | 3633 | debugs(33, 1, "varyEvaluateMatch: Oops. Not a Vary match on second attempt, '" << |
9e008dda | 3634 | entry->mem_obj->url << "' '" << vary << "'"); |
62e76326 | 3635 | return VARY_CANCEL; |
3636 | } | |
f66a9ef4 | 3637 | } |
3638 | } | |
28d4805a | 3639 | |
c0941a6a | 3640 | ACLFilledChecklist * |
59a1efb2 | 3641 | clientAclChecklistCreate(const acl_access * acl, ClientHttpRequest * http) |
28d4805a | 3642 | { |
1cf238db | 3643 | ConnStateData * conn = http->getConn(); |
c0941a6a | 3644 | ACLFilledChecklist *ch = new ACLFilledChecklist(acl, http->request, |
af6a12ee | 3645 | cbdataReferenceValid(conn) && conn != NULL ? conn->rfc931 : dash_str); |
28d4805a | 3646 | |
3647 | /* | |
3648 | * hack for ident ACL. It needs to get full addresses, and a place to store | |
3649 | * the ident result on persistent connections... | |
3650 | */ | |
3651 | /* connection oriented auth also needs these two lines for it's operation. */ | |
3652 | /* | |
3653 | * Internal requests do not have a connection reference, because: A) their | |
3654 | * byte count may be transformed before being applied to an outbound | |
3655 | * connection B) they are internal - any limiting on them should be done on | |
3656 | * the server end. | |
3657 | */ | |
62e76326 | 3658 | |
1cf238db | 3659 | if (conn != NULL) |
c0941a6a | 3660 | ch->conn(conn); /* unreferenced in FilledCheckList.cc */ |
28d4805a | 3661 | |
3662 | return ch; | |
3663 | } | |
a46d2c0e | 3664 | |
3665 | CBDATA_CLASS_INIT(ConnStateData); | |
3666 | ||
f84dd7eb | 3667 | ConnStateData::ConnStateData() :AsyncJob("ConnStateData"), transparent_ (false), closing_ (false) |
b65351fa | 3668 | { |
d67acb4e AJ |
3669 | pinning.fd = -1; |
3670 | pinning.pinned = false; | |
3671 | pinning.auth = false; | |
b65351fa | 3672 | } |
a46d2c0e | 3673 | |
3674 | bool | |
3675 | ConnStateData::transparent() const | |
3676 | { | |
3677 | return transparent_; | |
3678 | } | |
3679 | ||
3680 | void | |
3681 | ConnStateData::transparent(bool const anInt) | |
3682 | { | |
3683 | transparent_ = anInt; | |
3684 | } | |
3685 | ||
3686 | bool | |
3687 | ConnStateData::reading() const | |
3688 | { | |
f84dd7eb | 3689 | return reader != NULL; |
a46d2c0e | 3690 | } |
3691 | ||
3692 | void | |
f84dd7eb | 3693 | ConnStateData::stopReading() |
a46d2c0e | 3694 | { |
f84dd7eb AR |
3695 | if (reading()) { |
3696 | comm_read_cancel(fd, reader); | |
3697 | reader = NULL; | |
3698 | } | |
a46d2c0e | 3699 | } |
3700 | ||
5f8252d2 | 3701 | |
3702 | BodyPipe::Pointer | |
3e62bd58 | 3703 | ConnStateData::expectRequestBody(int64_t size) |
5f8252d2 | 3704 | { |
3705 | bodyPipe = new BodyPipe(this); | |
39cb8c41 AR |
3706 | if (size >= 0) |
3707 | bodyPipe->setBodySize(size); | |
3708 | else | |
3709 | startDechunkingRequest(); | |
5f8252d2 | 3710 | return bodyPipe; |
3711 | } | |
3712 | ||
39cb8c41 AR |
3713 | int64_t |
3714 | ConnStateData::mayNeedToReadMoreBody() const | |
3715 | { | |
3716 | if (!bodyPipe) | |
3717 | return 0; // request without a body or read/produced all body bytes | |
3718 | ||
3719 | if (!bodyPipe->bodySizeKnown()) | |
3720 | return -1; // probably need to read more, but we cannot be sure | |
3721 | ||
3722 | const int64_t needToProduce = bodyPipe->unproducedSize(); | |
3723 | const int64_t haveAvailable = static_cast<int64_t>(in.notYetUsed); | |
3724 | ||
3725 | if (needToProduce <= haveAvailable) | |
3726 | return 0; // we have read what we need (but are waiting for pipe space) | |
3727 | ||
3728 | return needToProduce - haveAvailable; | |
3729 | } | |
3730 | ||
55e44db9 | 3731 | bool |
3732 | ConnStateData::closing() const | |
3733 | { | |
3734 | return closing_; | |
3735 | } | |
3736 | ||
63be0a78 | 3737 | /** |
3738 | * Called by ClientSocketContext to give the connection a chance to read | |
3739 | * the entire body before closing the socket. | |
3740 | */ | |
55e44db9 | 3741 | void |
5f8252d2 | 3742 | ConnStateData::startClosing(const char *reason) |
55e44db9 | 3743 | { |
5f8252d2 | 3744 | debugs(33, 5, HERE << "startClosing " << this << " for " << reason); |
3745 | assert(!closing()); | |
3746 | closing_ = true; | |
3747 | ||
3748 | assert(bodyPipe != NULL); | |
5f8252d2 | 3749 | |
3750 | // We do not have to abort the body pipeline because we are going to | |
3751 | // read the entire body anyway. | |
3752 | // Perhaps an ICAP server wants to log the complete request. | |
3753 | ||
3754 | // If a consumer abort have caused this closing, we may get stuck | |
3755 | // as nobody is consuming our data. Allow auto-consumption. | |
3756 | bodyPipe->enableAutoConsumption(); | |
55e44db9 | 3757 | } |
3758 | ||
39cb8c41 | 3759 | /// initialize dechunking state |
3ff65596 | 3760 | void |
39cb8c41 | 3761 | ConnStateData::startDechunkingRequest() |
3ff65596 | 3762 | { |
39cb8c41 AR |
3763 | Must(bodyPipe != NULL); |
3764 | debugs(33, 5, HERE << "start dechunking" << bodyPipe->status()); | |
3ff65596 AR |
3765 | assert(!in.bodyParser); |
3766 | in.bodyParser = new ChunkedCodingParser; | |
3ff65596 AR |
3767 | } |
3768 | ||
39cb8c41 | 3769 | /// put parsed content into input buffer and clean up |
3ff65596 | 3770 | void |
39cb8c41 | 3771 | ConnStateData::finishDechunkingRequest(bool withSuccess) |
3ff65596 | 3772 | { |
39cb8c41 | 3773 | debugs(33, 5, HERE << "finish dechunking: " << withSuccess); |
3ff65596 | 3774 | |
39cb8c41 AR |
3775 | if (bodyPipe != NULL) { |
3776 | debugs(33, 7, HERE << "dechunked tail: " << bodyPipe->status()); | |
3777 | BodyPipe::Pointer myPipe = bodyPipe; | |
3778 | stopProducingFor(bodyPipe, withSuccess); // sets bodyPipe->bodySize() | |
3779 | Must(!bodyPipe); // we rely on it being nil after we are done with body | |
3780 | if (withSuccess) { | |
3781 | Must(myPipe->bodySizeKnown()); | |
3782 | ClientSocketContext::Pointer context = getCurrentContext(); | |
3783 | if (context != NULL && context->http && context->http->request) | |
3784 | context->http->request->setContentLength(myPipe->bodySize()); | |
3785 | } | |
3ff65596 | 3786 | } |
3ff65596 | 3787 | |
39cb8c41 AR |
3788 | delete in.bodyParser; |
3789 | in.bodyParser = NULL; | |
3ff65596 AR |
3790 | } |
3791 | ||
a46d2c0e | 3792 | char * |
3793 | ConnStateData::In::addressToReadInto() const | |
3794 | { | |
3795 | return buf + notYetUsed; | |
3796 | } | |
3797 | ||
3ff65596 | 3798 | ConnStateData::In::In() : bodyParser(NULL), |
39cb8c41 | 3799 | buf (NULL), notYetUsed (0), allocatedSize (0) |
a46d2c0e | 3800 | {} |
3801 | ||
3802 | ConnStateData::In::~In() | |
3803 | { | |
3804 | if (allocatedSize) | |
3805 | memFreeBuf(allocatedSize, buf); | |
39cb8c41 | 3806 | delete bodyParser; // TODO: pool |
a46d2c0e | 3807 | } |
d67acb4e | 3808 | |
655daa06 AR |
3809 | void |
3810 | ConnStateData::sendControlMsg(HttpControlMsg msg) | |
3811 | { | |
eedd4182 AR |
3812 | if (!isOpen()) { |
3813 | debugs(33, 3, HERE << "ignoring 1xx due to earlier closure"); | |
655daa06 AR |
3814 | return; |
3815 | } | |
3816 | ||
eedd4182 AR |
3817 | ClientSocketContext::Pointer context = getCurrentContext(); |
3818 | if (context != NULL) { | |
3819 | context->writeControlMsg(msg); // will call msg.cbSuccess | |
655daa06 AR |
3820 | return; |
3821 | } | |
3822 | ||
3823 | debugs(33, 3, HERE << " closing due to missing context for 1xx"); | |
3824 | comm_close(fd); | |
3825 | } | |
3826 | ||
d67acb4e AJ |
3827 | /* This is a comm call normally scheduled by comm_close() */ |
3828 | void | |
3829 | ConnStateData::clientPinnedConnectionClosed(const CommCloseCbParams &io) | |
3830 | { | |
3831 | pinning.fd = -1; | |
3832 | if (pinning.peer) { | |
9e008dda | 3833 | cbdataReferenceDone(pinning.peer); |
d67acb4e AJ |
3834 | } |
3835 | safe_free(pinning.host); | |
3836 | /* NOTE: pinning.pinned should be kept. This combined with fd == -1 at the end of a request indicates that the host | |
3837 | * connection has gone away */ | |
3838 | } | |
3839 | ||
8bcf08e0 | 3840 | void ConnStateData::pinConnection(int pinning_fd, HttpRequest *request, struct peer *aPeer, bool auth) |
9e008dda | 3841 | { |
d67acb4e AJ |
3842 | fde *f; |
3843 | char desc[FD_DESC_SZ]; | |
3844 | ||
3845 | if (pinning.fd == pinning_fd) | |
9e008dda | 3846 | return; |
d67acb4e | 3847 | else if (pinning.fd != -1) |
9e008dda AJ |
3848 | comm_close(pinning.fd); |
3849 | ||
3850 | if (pinning.host) | |
3851 | safe_free(pinning.host); | |
3852 | ||
d67acb4e AJ |
3853 | pinning.fd = pinning_fd; |
3854 | pinning.host = xstrdup(request->GetHost()); | |
3855 | pinning.port = request->port; | |
3856 | pinning.pinned = true; | |
3857 | if (pinning.peer) | |
9e008dda | 3858 | cbdataReferenceDone(pinning.peer); |
8bcf08e0 FC |
3859 | if (aPeer) |
3860 | pinning.peer = cbdataReference(aPeer); | |
d67acb4e AJ |
3861 | pinning.auth = auth; |
3862 | f = &fd_table[fd]; | |
3863 | snprintf(desc, FD_DESC_SZ, "%s pinned connection for %s:%d (%d)", | |
8bcf08e0 | 3864 | (auth || !aPeer) ? request->GetHost() : aPeer->name, f->ipaddr, (int) f->remote_port, fd); |
d67acb4e | 3865 | fd_note(pinning_fd, desc); |
9e008dda | 3866 | |
d67acb4e | 3867 | typedef CommCbMemFunT<ConnStateData, CommCloseCbParams> Dialer; |
4299f876 | 3868 | pinning.closeHandler = JobCallback(33, 5, |
4cb2536f | 3869 | Dialer, this, ConnStateData::clientPinnedConnectionClosed); |
d67acb4e AJ |
3870 | comm_add_close_handler(pinning_fd, pinning.closeHandler); |
3871 | ||
3872 | } | |
3873 | ||
8bcf08e0 | 3874 | int ConnStateData::validatePinnedConnection(HttpRequest *request, const struct peer *aPeer) |
d67acb4e AJ |
3875 | { |
3876 | bool valid = true; | |
3877 | if (pinning.fd < 0) | |
9e008dda AJ |
3878 | return -1; |
3879 | ||
d67acb4e | 3880 | if (pinning.auth && request && strcasecmp(pinning.host, request->GetHost()) != 0) { |
9e008dda | 3881 | valid = false; |
d67acb4e | 3882 | } |
9e008dda AJ |
3883 | if (request && pinning.port != request->port) { |
3884 | valid = false; | |
d67acb4e | 3885 | } |
9e008dda AJ |
3886 | if (pinning.peer && !cbdataReferenceValid(pinning.peer)) { |
3887 | valid = false; | |
d67acb4e | 3888 | } |
8bcf08e0 | 3889 | if (aPeer != pinning.peer) { |
9e008dda | 3890 | valid = false; |
d67acb4e AJ |
3891 | } |
3892 | ||
9e008dda AJ |
3893 | if (!valid) { |
3894 | int pinning_fd=pinning.fd; | |
3895 | /* The pinning info is not safe, remove any pinning info*/ | |
3896 | unpinConnection(); | |
d67acb4e | 3897 | |
9e008dda AJ |
3898 | /* also close the server side socket, we should not use it for invalid/unauthenticated |
3899 | requests... | |
3900 | */ | |
3901 | comm_close(pinning_fd); | |
3902 | return -1; | |
d67acb4e AJ |
3903 | } |
3904 | ||
3905 | return pinning.fd; | |
3906 | } | |
3907 | ||
3908 | void ConnStateData::unpinConnection() | |
3909 | { | |
9e008dda AJ |
3910 | if (pinning.peer) |
3911 | cbdataReferenceDone(pinning.peer); | |
d67acb4e | 3912 | |
9e008dda AJ |
3913 | if (pinning.closeHandler != NULL) { |
3914 | comm_remove_close_handler(pinning.fd, pinning.closeHandler); | |
3915 | pinning.closeHandler = NULL; | |
d67acb4e AJ |
3916 | } |
3917 | pinning.fd = -1; | |
3918 | safe_free(pinning.host); | |
3919 | } |