]>
Commit | Line | Data |
---|---|---|
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 AJ |
95 | #include "comm/ListenStateData.h" |
96 | #include "ConnectionDetail.h" | |
056b24a1 | 97 | #include "eui/Config.h" |
04f55905 | 98 | #include "fde.h" |
25b6a907 | 99 | #include "HttpHdrContRange.h" |
528b2c61 | 100 | #include "HttpReply.h" |
101 | #include "HttpRequest.h" | |
4daaf3cb AJ |
102 | #include "ident/Config.h" |
103 | #include "ident/Ident.h" | |
85944c1c | 104 | #include "ip/IpIntercept.h" |
0eb49b6d | 105 | #include "MemBuf.h" |
04f55905 AJ |
106 | #include "MemObject.h" |
107 | #include "ProtoPort.h" | |
1fa9b1a7 | 108 | #include "rfc1738.h" |
985c86bc | 109 | #include "SquidTime.h" |
04f55905 | 110 | #include "Store.h" |
5cafc1d6 | 111 | |
5492ad1d | 112 | #if LINGERING_CLOSE |
113 | #define comm_close comm_lingering_close | |
114 | #endif | |
115 | ||
edce4d98 | 116 | /* our socket-related context */ |
62e76326 | 117 | |
62e76326 | 118 | |
0655fa4d | 119 | CBDATA_CLASS_INIT(ClientSocketContext); |
62e76326 | 120 | |
0655fa4d | 121 | void * |
122 | ClientSocketContext::operator new (size_t byteCount) | |
123 | { | |
124 | /* derived classes with different sizes must implement their own new */ | |
125 | assert (byteCount == sizeof (ClientSocketContext)); | |
126 | CBDATA_INIT_TYPE(ClientSocketContext); | |
127 | return cbdataAlloc(ClientSocketContext); | |
128 | } | |
62e76326 | 129 | |
0655fa4d | 130 | void |
131 | ClientSocketContext::operator delete (void *address) | |
132 | { | |
133 | cbdataFree (address); | |
134 | } | |
7a2f978b | 135 | |
edce4d98 | 136 | /* Local functions */ |
528b2c61 | 137 | /* ClientSocketContext */ |
59a1efb2 | 138 | static ClientSocketContext *ClientSocketContextNew(ClientHttpRequest *); |
edce4d98 | 139 | /* other */ |
2b663917 | 140 | static IOCB clientWriteComplete; |
141 | static IOCB clientWriteBodyComplete; | |
1cf238db | 142 | static bool clientParseRequest(ConnStateData * conn, bool &do_next_read); |
b5c39993 | 143 | static PF clientLifetimeTimeout; |
719c7e0a | 144 | static ClientSocketContext *parseHttpRequestAbort(ConnStateData * conn, const char *uri); |
1cf238db | 145 | static ClientSocketContext *parseHttpRequest(ConnStateData *, HttpParser *, HttpRequestMethod *, HttpVersion *); |
3898f57f | 146 | #if USE_IDENT |
05832ae1 | 147 | static IDCB clientIdentDone; |
3898f57f | 148 | #endif |
edce4d98 | 149 | static CSCB clientSocketRecipient; |
150 | static CSD clientSocketDetach; | |
59a1efb2 | 151 | static void clientSetKeepaliveFlag(ClientHttpRequest *); |
190154cf | 152 | static int clientIsContentLengthValid(HttpRequest * r); |
47f6e231 | 153 | static int clientIsRequestBodyValid(int64_t bodyLength); |
154 | static int clientIsRequestBodyTooLargeForPolicy(int64_t bodyLength); | |
50c09fc4 | 155 | |
c8be6d7b | 156 | static void clientUpdateStatHistCounters(log_type logType, int svc_time); |
157 | static void clientUpdateStatCounters(log_type logType); | |
158 | static void clientUpdateHierCounters(HierarchyLogEntry *); | |
528b2c61 | 159 | static bool clientPingHasFinished(ping_data const *aPing); |
3ff65596 | 160 | void prepareLogWithRequestDetails(HttpRequest *, AccessLogEntry *); |
e4a67a80 | 161 | #ifndef PURIFY |
1cf238db | 162 | static int connIsUsable(ConnStateData * conn); |
e4a67a80 | 163 | #endif |
2324cda2 | 164 | static int responseFinishedOrFailed(HttpReply * rep, StoreIOBuffer const &receivedData); |
1cf238db | 165 | static void ClientSocketContextPushDeferredIfNeeded(ClientSocketContext::Pointer deferredRequest, ConnStateData * conn); |
c8be6d7b | 166 | static void clientUpdateSocketStats(log_type logType, size_t size); |
167 | ||
84cc2635 | 168 | char *skipLeadingSpace(char *aString); |
3b299123 | 169 | static void connNoteUseOfBuffer(ConnStateData* conn, size_t byteCount); |
1cf238db | 170 | static int connKeepReadingIncompleteRequest(ConnStateData * conn); |
171 | static void connCancelIncompleteRequests(ConnStateData * conn); | |
62e76326 | 172 | |
23f6a720 | 173 | static ConnStateData *connStateCreate(const IpAddress &peer, const IpAddress &me, int fd, http_port_list *port); |
528b2c61 | 174 | |
ae7ff0b8 | 175 | |
528b2c61 | 176 | int |
177 | ClientSocketContext::fd() const | |
178 | { | |
179 | assert (http); | |
94a396a3 | 180 | assert (http->getConn() != NULL); |
98242069 | 181 | return http->getConn()->fd; |
528b2c61 | 182 | } |
c8be6d7b | 183 | |
184 | clientStreamNode * | |
528b2c61 | 185 | ClientSocketContext::getTail() const |
c8be6d7b | 186 | { |
0655fa4d | 187 | if (http->client_stream.tail) |
188 | return (clientStreamNode *)http->client_stream.tail->data; | |
189 | ||
190 | return NULL; | |
c8be6d7b | 191 | } |
192 | ||
193 | clientStreamNode * | |
528b2c61 | 194 | ClientSocketContext::getClientReplyContext() const |
c8be6d7b | 195 | { |
528b2c61 | 196 | return (clientStreamNode *)http->client_stream.tail->prev->data; |
c8be6d7b | 197 | } |
198 | ||
63be0a78 | 199 | /** |
c4b7a5a9 | 200 | * This routine should be called to grow the inbuf and then |
201 | * call comm_read(). | |
202 | */ | |
203 | void | |
a46d2c0e | 204 | ConnStateData::readSomeData() |
c4b7a5a9 | 205 | { |
a46d2c0e | 206 | if (reading()) |
62e76326 | 207 | return; |
208 | ||
a46d2c0e | 209 | reading(true); |
c4b7a5a9 | 210 | |
bf8fe701 | 211 | debugs(33, 4, "clientReadSomeData: FD " << fd << ": reading request..."); |
62e76326 | 212 | |
a46d2c0e | 213 | makeSpaceAvailable(); |
62e76326 | 214 | |
1cf238db | 215 | typedef CommCbMemFunT<ConnStateData, CommIoCbParams> Dialer; |
216 | AsyncCall::Pointer call = asyncCall(33, 5, "ConnStateData::clientReadRequest", | |
217 | Dialer(this, &ConnStateData::clientReadRequest)); | |
218 | comm_read(fd, in.addressToReadInto(), getAvailableBufferLength(), call); | |
c4b7a5a9 | 219 | } |
62e76326 | 220 | |
c4b7a5a9 | 221 | |
c8be6d7b | 222 | void |
1cf238db | 223 | ClientSocketContext::removeFromConnectionList(ConnStateData * conn) |
c8be6d7b | 224 | { |
0655fa4d | 225 | ClientSocketContext::Pointer *tempContextPointer; |
1cf238db | 226 | assert(conn != NULL && cbdataReferenceValid(conn)); |
94a396a3 | 227 | assert(conn->getCurrentContext() != NULL); |
c8be6d7b | 228 | /* Unlink us from the connection request list */ |
0655fa4d | 229 | tempContextPointer = & conn->currentobject; |
62e76326 | 230 | |
0655fa4d | 231 | while (tempContextPointer->getRaw()) { |
62e76326 | 232 | if (*tempContextPointer == this) |
233 | break; | |
234 | ||
235 | tempContextPointer = &(*tempContextPointer)->next; | |
c8be6d7b | 236 | } |
62e76326 | 237 | |
0655fa4d | 238 | assert(tempContextPointer->getRaw() != NULL); |
528b2c61 | 239 | *tempContextPointer = next; |
240 | next = NULL; | |
c8be6d7b | 241 | } |
ea6f43cd | 242 | |
0655fa4d | 243 | ClientSocketContext::~ClientSocketContext() |
f88bb09c | 244 | { |
0655fa4d | 245 | clientStreamNode *node = getTail(); |
246 | ||
247 | if (node) { | |
248 | ClientSocketContext *streamContext = dynamic_cast<ClientSocketContext *> (node->data.getRaw()); | |
249 | ||
250 | if (streamContext) { | |
251 | /* We are *always* the tail - prevent recursive free */ | |
252 | assert(this == streamContext); | |
253 | node->data = NULL; | |
254 | } | |
255 | } | |
256 | ||
257 | if (connRegistered_) | |
258 | deRegisterWithConn(); | |
259 | ||
260 | httpRequestFree(http); | |
261 | ||
edce4d98 | 262 | /* clean up connection links to us */ |
c53577d9 | 263 | assert(this != next.getRaw()); |
0655fa4d | 264 | } |
62e76326 | 265 | |
0655fa4d | 266 | void |
267 | ClientSocketContext::registerWithConn() | |
268 | { | |
269 | assert (!connRegistered_); | |
270 | assert (http); | |
94a396a3 | 271 | assert (http->getConn() != NULL); |
0655fa4d | 272 | connRegistered_ = true; |
98242069 | 273 | http->getConn()->addContextToQueue(this); |
0655fa4d | 274 | } |
275 | ||
276 | void | |
277 | ClientSocketContext::deRegisterWithConn() | |
278 | { | |
279 | assert (connRegistered_); | |
98242069 | 280 | removeFromConnectionList(http->getConn()); |
0655fa4d | 281 | connRegistered_ = false; |
282 | } | |
283 | ||
284 | void | |
285 | ClientSocketContext::connIsFinished() | |
286 | { | |
287 | assert (http); | |
94a396a3 | 288 | assert (http->getConn() != NULL); |
0655fa4d | 289 | deRegisterWithConn(); |
290 | /* we can't handle any more stream data - detach */ | |
291 | clientStreamDetach(getTail(), http); | |
292 | } | |
293 | ||
fedd1531 | 294 | ClientSocketContext::ClientSocketContext() : http(NULL), reply(NULL), next(NULL), |
0655fa4d | 295 | writtenToSocket(0), |
296 | mayUseConnection_ (false), | |
297 | connRegistered_ (false) | |
298 | { | |
299 | memset (reqbuf, '\0', sizeof (reqbuf)); | |
300 | flags.deferred = 0; | |
301 | flags.parsed_ok = 0; | |
302 | deferredparams.node = NULL; | |
303 | deferredparams.rep = NULL; | |
f88bb09c | 304 | } |
305 | ||
528b2c61 | 306 | ClientSocketContext * |
59a1efb2 | 307 | ClientSocketContextNew(ClientHttpRequest * http) |
f88bb09c | 308 | { |
528b2c61 | 309 | ClientSocketContext *newContext; |
edce4d98 | 310 | assert(http != NULL); |
0655fa4d | 311 | newContext = new ClientSocketContext; |
c8be6d7b | 312 | newContext->http = http; |
313 | return newContext; | |
4d55827a | 314 | } |
315 | ||
edce4d98 | 316 | #if USE_IDENT |
4d55827a | 317 | static void |
edce4d98 | 318 | clientIdentDone(const char *ident, void *data) |
4d55827a | 319 | { |
cc59d02a | 320 | ConnStateData *conn = (ConnStateData *)data; |
edce4d98 | 321 | xstrncpy(conn->rfc931, ident ? ident : dash_str, USER_IDENT_SZ); |
e81957b7 | 322 | } |
447e176b | 323 | #endif |
7a2f978b | 324 | |
c8be6d7b | 325 | void |
326 | clientUpdateStatCounters(log_type logType) | |
a7c05555 | 327 | { |
83704487 | 328 | statCounter.client_http.requests++; |
62e76326 | 329 | |
c8be6d7b | 330 | if (logTypeIsATcpHit(logType)) |
62e76326 | 331 | statCounter.client_http.hits++; |
332 | ||
c8be6d7b | 333 | if (logType == LOG_TCP_HIT) |
62e76326 | 334 | statCounter.client_http.disk_hits++; |
c8be6d7b | 335 | else if (logType == LOG_TCP_MEM_HIT) |
62e76326 | 336 | statCounter.client_http.mem_hits++; |
c8be6d7b | 337 | } |
338 | ||
339 | void | |
340 | clientUpdateStatHistCounters(log_type logType, int svc_time) | |
341 | { | |
83704487 | 342 | statHistCount(&statCounter.client_http.all_svc_time, svc_time); |
63be0a78 | 343 | /** |
ee1679df | 344 | * The idea here is not to be complete, but to get service times |
345 | * for only well-defined types. For example, we don't include | |
1d7ab0f4 | 346 | * LOG_TCP_REFRESH_FAIL because its not really a cache hit |
ee1679df | 347 | * (we *tried* to validate it, but failed). |
348 | */ | |
62e76326 | 349 | |
c8be6d7b | 350 | switch (logType) { |
62e76326 | 351 | |
1d7ab0f4 | 352 | case LOG_TCP_REFRESH_UNMODIFIED: |
62e76326 | 353 | statHistCount(&statCounter.client_http.nh_svc_time, svc_time); |
354 | break; | |
355 | ||
ee1679df | 356 | case LOG_TCP_IMS_HIT: |
62e76326 | 357 | statHistCount(&statCounter.client_http.nm_svc_time, svc_time); |
358 | break; | |
359 | ||
ee1679df | 360 | case LOG_TCP_HIT: |
62e76326 | 361 | |
ee1679df | 362 | case LOG_TCP_MEM_HIT: |
62e76326 | 363 | |
b540e168 | 364 | case LOG_TCP_OFFLINE_HIT: |
62e76326 | 365 | statHistCount(&statCounter.client_http.hit_svc_time, svc_time); |
366 | break; | |
367 | ||
ee1679df | 368 | case LOG_TCP_MISS: |
62e76326 | 369 | |
ee1679df | 370 | case LOG_TCP_CLIENT_REFRESH_MISS: |
62e76326 | 371 | statHistCount(&statCounter.client_http.miss_svc_time, svc_time); |
372 | break; | |
373 | ||
ee1679df | 374 | default: |
62e76326 | 375 | /* make compiler warnings go away */ |
376 | break; | |
ee1679df | 377 | } |
c8be6d7b | 378 | } |
379 | ||
528b2c61 | 380 | bool |
c8be6d7b | 381 | clientPingHasFinished(ping_data const *aPing) |
382 | { | |
383 | if (0 != aPing->stop.tv_sec && 0 != aPing->start.tv_sec) | |
62e76326 | 384 | return true; |
385 | ||
528b2c61 | 386 | return false; |
c8be6d7b | 387 | } |
388 | ||
389 | void | |
390 | clientUpdateHierCounters(HierarchyLogEntry * someEntry) | |
391 | { | |
392 | ping_data *i; | |
62e76326 | 393 | |
c8547a11 | 394 | switch (someEntry->code) { |
395 | #if USE_CACHE_DIGESTS | |
62e76326 | 396 | |
c8547a11 | 397 | case CD_PARENT_HIT: |
62e76326 | 398 | |
a196e1e4 | 399 | case CD_SIBLING_HIT: |
62e76326 | 400 | statCounter.cd.times_used++; |
401 | break; | |
c8547a11 | 402 | #endif |
62e76326 | 403 | |
c8547a11 | 404 | case SIBLING_HIT: |
62e76326 | 405 | |
c8547a11 | 406 | case PARENT_HIT: |
62e76326 | 407 | |
c8547a11 | 408 | case FIRST_PARENT_MISS: |
62e76326 | 409 | |
c8547a11 | 410 | case CLOSEST_PARENT_MISS: |
62e76326 | 411 | statCounter.icp.times_used++; |
412 | i = &someEntry->ping; | |
413 | ||
414 | if (clientPingHasFinished(i)) | |
415 | statHistCount(&statCounter.icp.query_svc_time, | |
416 | tvSubUsec(i->start, i->stop)); | |
417 | ||
418 | if (i->timeout) | |
419 | statCounter.icp.query_timeouts++; | |
420 | ||
421 | break; | |
422 | ||
c8547a11 | 423 | case CLOSEST_PARENT: |
62e76326 | 424 | |
c8547a11 | 425 | case CLOSEST_DIRECT: |
62e76326 | 426 | statCounter.netdb.times_used++; |
427 | ||
428 | break; | |
429 | ||
69c95dd3 | 430 | default: |
62e76326 | 431 | break; |
17b6e784 | 432 | } |
a7c05555 | 433 | } |
434 | ||
528b2c61 | 435 | void |
436 | ClientHttpRequest::updateCounters() | |
c8be6d7b | 437 | { |
528b2c61 | 438 | clientUpdateStatCounters(logType); |
62e76326 | 439 | |
528b2c61 | 440 | if (request->errType != ERR_NONE) |
62e76326 | 441 | statCounter.client_http.errors++; |
442 | ||
528b2c61 | 443 | clientUpdateStatHistCounters(logType, |
1cf238db | 444 | tvSubMsec(start_time, current_time)); |
62e76326 | 445 | |
528b2c61 | 446 | clientUpdateHierCounters(&request->hier); |
c8be6d7b | 447 | } |
448 | ||
edce4d98 | 449 | void |
3ff65596 | 450 | prepareLogWithRequestDetails(HttpRequest * request, AccessLogEntry * aLogEntry) |
7a2f978b | 451 | { |
c8be6d7b | 452 | assert(request); |
453 | assert(aLogEntry); | |
7684c4b1 | 454 | |
e1381638 | 455 | #if ICAP_CLIENT |
3ff65596 AR |
456 | Adaptation::Icap::History::Pointer ih = request->icapHistory(); |
457 | #endif | |
7684c4b1 | 458 | if (Config.onoff.log_mime_hdrs) { |
459 | Packer p; | |
460 | MemBuf mb; | |
2fe7eff9 | 461 | mb.init(); |
7684c4b1 | 462 | packerToMemInit(&p, &mb); |
a9925b40 | 463 | request->header.packInto(&p); |
105d1937 A |
464 | //This is the request after adaptation or redirection |
465 | aLogEntry->headers.adapted_request = xstrdup(mb.buf); | |
466 | ||
467 | // the virgin request is saved to aLogEntry->request | |
468 | if (aLogEntry->request) { | |
469 | packerClean(&p); | |
470 | mb.reset(); | |
471 | packerToMemInit(&p, &mb); | |
472 | aLogEntry->request->header.packInto(&p); | |
473 | aLogEntry->headers.request = xstrdup(mb.buf); | |
474 | } | |
3ff65596 AR |
475 | |
476 | #if ICAP_CLIENT | |
477 | packerClean(&p); | |
478 | mb.reset(); | |
479 | packerToMemInit(&p, &mb); | |
480 | ||
481 | if (ih != NULL) | |
482 | ih->lastIcapHeader.packInto(&p); | |
483 | aLogEntry->headers.icap = xstrdup(mb.buf); | |
484 | #endif | |
485 | ||
7684c4b1 | 486 | packerClean(&p); |
2fe7eff9 | 487 | mb.clean(); |
7684c4b1 | 488 | } |
489 | ||
3ff65596 AR |
490 | #if ICAP_CLIENT |
491 | if (ih != NULL) | |
492 | aLogEntry->icap.processingTime = ih->processingTime(); | |
493 | #endif | |
494 | ||
c8be6d7b | 495 | aLogEntry->http.method = request->method; |
496 | aLogEntry->http.version = request->http_ver; | |
c8be6d7b | 497 | aLogEntry->hier = request->hier; |
3ff65596 AR |
498 | if (request->content_length > 0) // negative when no body or unknown length |
499 | aLogEntry->cache.requestSize += request->content_length; | |
5b4117d8 | 500 | aLogEntry->cache.extuser = request->extacl_user.termedBuf(); |
abb929f0 | 501 | |
c8be6d7b | 502 | if (request->auth_user_request) { |
f5691f9c | 503 | |
504 | if (request->auth_user_request->username()) | |
f5292c64 | 505 | aLogEntry->cache.authuser = |
f5691f9c | 506 | xstrdup(request->auth_user_request->username()); |
f5292c64 | 507 | |
9e008dda | 508 | AUTHUSERREQUESTUNLOCK(request->auth_user_request, "request via clientPrepareLogWithRequestDetails"); |
7a2f978b | 509 | } |
c8be6d7b | 510 | } |
511 | ||
512 | void | |
528b2c61 | 513 | ClientHttpRequest::logRequest() |
514 | { | |
515 | if (out.size || logType) { | |
62e76326 | 516 | al.icp.opcode = ICP_INVALID; |
517 | al.url = log_uri; | |
bf8fe701 | 518 | debugs(33, 9, "clientLogRequest: al.url='" << al.url << "'"); |
62e76326 | 519 | |
90a8964c | 520 | if (al.reply) { |
521 | al.http.code = al.reply->sline.status; | |
5b4117d8 | 522 | al.http.content_type = al.reply->content_type.termedBuf(); |
90a8964c | 523 | } else if (loggingEntry() && loggingEntry()->mem_obj) { |
0976f8db | 524 | al.http.code = loggingEntry()->mem_obj->getReply()->sline.status; |
bb790702 | 525 | al.http.content_type = loggingEntry()->mem_obj->getReply()->content_type.termedBuf(); |
62e76326 | 526 | } |
527 | ||
bf8fe701 | 528 | debugs(33, 9, "clientLogRequest: http.code='" << al.http.code << "'"); |
5f8252d2 | 529 | |
90a8964c | 530 | if (loggingEntry() && loggingEntry()->mem_obj) |
b37bde1e | 531 | al.cache.objectSize = loggingEntry()->contentLen(); |
90a8964c | 532 | |
cc192b50 | 533 | al.cache.caddr.SetNoAddr(); |
534 | ||
9e008dda | 535 | if (getConn() != NULL) al.cache.caddr = getConn()->log_addr; |
90a8964c | 536 | |
1a86db31 | 537 | al.cache.requestSize = req_sz; |
3ff65596 | 538 | al.cache.requestHeadersSize = req_sz; |
1a86db31 AJ |
539 | |
540 | al.cache.replySize = out.size; | |
3ff65596 | 541 | al.cache.replyHeadersSize = out.headers_sz; |
90a8964c | 542 | |
0976f8db | 543 | al.cache.highOffset = out.offset; |
90a8964c | 544 | |
62e76326 | 545 | al.cache.code = logType; |
90a8964c | 546 | |
1cf238db | 547 | al.cache.msec = tvSubMsec(start_time, current_time); |
62e76326 | 548 | |
549 | if (request) | |
3ff65596 | 550 | prepareLogWithRequestDetails(request, &al); |
62e76326 | 551 | |
94a396a3 | 552 | if (getConn() != NULL && getConn()->rfc931[0]) |
98242069 | 553 | al.cache.rfc931 = getConn()->rfc931; |
62e76326 | 554 | |
2ea1afad | 555 | #if USE_SSL && 0 |
62e76326 | 556 | |
9e008dda AJ |
557 | /* This is broken. Fails if the connection has been closed. Needs |
558 | * to snarf the ssl details some place earlier.. | |
559 | */ | |
94a396a3 | 560 | if (getConn() != NULL) |
98242069 | 561 | al.cache.ssluser = sslGetUserEmail(fd_table[getConn()->fd].ssl); |
62e76326 | 562 | |
a7ad6e4e | 563 | #endif |
62e76326 | 564 | |
c0941a6a | 565 | ACLFilledChecklist *checklist = clientAclChecklistCreate(Config.accessList.log, this); |
62e76326 | 566 | |
fe74b6a6 | 567 | if (al.reply) |
568 | checklist->reply = HTTPMSGLOCK(al.reply); | |
62e76326 | 569 | |
b448c119 | 570 | if (!Config.accessList.log || checklist->fastCheck()) { |
af6a12ee | 571 | if (request) |
6fca33e0 | 572 | al.adapted_request = HTTPMSGLOCK(request); |
7684c4b1 | 573 | accessLogLog(&al, checklist); |
574 | updateCounters(); | |
62e76326 | 575 | |
94a396a3 | 576 | if (getConn() != NULL) |
cc192b50 | 577 | clientdbUpdate(getConn()->peer, logType, PROTO_HTTP, out.size); |
7684c4b1 | 578 | } |
579 | ||
580 | delete checklist; | |
581 | ||
582 | accessLogFreeMemory(&al); | |
7a2f978b | 583 | } |
c8be6d7b | 584 | } |
585 | ||
586 | void | |
528b2c61 | 587 | ClientHttpRequest::freeResources() |
c8be6d7b | 588 | { |
528b2c61 | 589 | safe_free(uri); |
590 | safe_free(log_uri); | |
591 | safe_free(redirect.location); | |
30abd221 | 592 | range_iter.boundary.clean(); |
6dd9f4bd | 593 | HTTPMSGUNLOCK(request); |
62e76326 | 594 | |
528b2c61 | 595 | if (client_stream.tail) |
62e76326 | 596 | clientStreamAbort((clientStreamNode *)client_stream.tail->data, this); |
c8be6d7b | 597 | } |
598 | ||
599 | void | |
600 | httpRequestFree(void *data) | |
601 | { | |
59a1efb2 | 602 | ClientHttpRequest *http = (ClientHttpRequest *)data; |
c8be6d7b | 603 | assert(http != NULL); |
528b2c61 | 604 | delete http; |
7a2f978b | 605 | } |
606 | ||
a46d2c0e | 607 | bool |
608 | ConnStateData::areAllContextsForThisConnection() const | |
c8be6d7b | 609 | { |
a46d2c0e | 610 | assert(this != NULL); |
0655fa4d | 611 | ClientSocketContext::Pointer context = getCurrentContext(); |
62e76326 | 612 | |
0655fa4d | 613 | while (context.getRaw()) { |
98242069 | 614 | if (context->http->getConn() != this) |
a46d2c0e | 615 | return false; |
62e76326 | 616 | |
617 | context = context->next; | |
c8be6d7b | 618 | } |
62e76326 | 619 | |
a46d2c0e | 620 | return true; |
c8be6d7b | 621 | } |
622 | ||
623 | void | |
a46d2c0e | 624 | ConnStateData::freeAllContexts() |
c8be6d7b | 625 | { |
0655fa4d | 626 | ClientSocketContext::Pointer context; |
62e76326 | 627 | |
c53577d9 | 628 | while ((context = getCurrentContext()).getRaw() != NULL) { |
0655fa4d | 629 | assert(getCurrentContext() != |
630 | getCurrentContext()->next); | |
631 | context->connIsFinished(); | |
632 | assert (context != currentobject); | |
c8be6d7b | 633 | } |
634 | } | |
635 | ||
f692498b AJ |
636 | /// propagates abort event to all contexts |
637 | void | |
638 | ConnStateData::notifyAllContexts(int xerrno) | |
639 | { | |
640 | typedef ClientSocketContext::Pointer CSCP; | |
641 | for (CSCP c = getCurrentContext(); c.getRaw(); c = c->next) | |
642 | c->noteIoError(xerrno); | |
643 | } | |
644 | ||
7a2f978b | 645 | /* This is a handler normally called by comm_close() */ |
1cf238db | 646 | void ConnStateData::connStateClosed(const CommCloseCbParams &io) |
7a2f978b | 647 | { |
1cf238db | 648 | assert (fd == io.fd); |
6e1d409c | 649 | deleteThis("ConnStateData::connStateClosed"); |
a46d2c0e | 650 | } |
62e76326 | 651 | |
6e1d409c | 652 | // cleans up before destructor is called |
a2ac85d9 | 653 | void |
6e1d409c | 654 | ConnStateData::swanSong() |
a46d2c0e | 655 | { |
6e1d409c | 656 | debugs(33, 2, "ConnStateData::swanSong: FD " << fd); |
2e216b1d | 657 | fd = -1; |
658 | flags.readMoreRequests = false; | |
cc192b50 | 659 | clientdbEstablished(peer, -1); /* decrement */ |
a46d2c0e | 660 | assert(areAllContextsForThisConnection()); |
661 | freeAllContexts(); | |
f5691f9c | 662 | |
6bf4f823 | 663 | if (auth_user_request != NULL) { |
6e1d409c | 664 | debugs(33, 4, "ConnStateData::swanSong: freeing auth_user_request '" << auth_user_request << "' (this is '" << this << "')"); |
f5691f9c | 665 | auth_user_request->onConnectionClose(this); |
6bf4f823 | 666 | } |
6e1d409c | 667 | |
d67acb4e | 668 | if (pinning.fd >= 0) |
9e008dda | 669 | comm_close(pinning.fd); |
d67acb4e | 670 | |
6e1d409c AR |
671 | BodyProducer::swanSong(); |
672 | flags.swanSang = true; | |
a2ac85d9 | 673 | } |
674 | ||
675 | bool | |
676 | ConnStateData::isOpen() const | |
677 | { | |
10b06767 | 678 | return cbdataReferenceValid(this) && // XXX: checking "this" in a method |
9e008dda AJ |
679 | fd >= 0 && |
680 | !fd_table[fd].closing(); | |
a2ac85d9 | 681 | } |
682 | ||
683 | ConnStateData::~ConnStateData() | |
684 | { | |
685 | assert(this != NULL); | |
bf8fe701 | 686 | debugs(33, 3, "ConnStateData::~ConnStateData: FD " << fd); |
a2ac85d9 | 687 | |
688 | if (isOpen()) | |
6e1d409c AR |
689 | debugs(33, 1, "BUG: ConnStateData did not close FD " << fd); |
690 | ||
691 | if (!flags.swanSang) | |
692 | debugs(33, 1, "BUG: ConnStateData was not destroyed properly; FD " << fd); | |
62e76326 | 693 | |
4f0ef8e8 | 694 | AUTHUSERREQUESTUNLOCK(auth_user_request, "~conn"); |
62e76326 | 695 | |
e0db3481 | 696 | cbdataReferenceDone(port); |
83fdd41a | 697 | |
279152e7 AJ |
698 | if (bodyPipe != NULL) |
699 | stopProducingFor(bodyPipe, false); | |
7a2f978b | 700 | } |
701 | ||
63be0a78 | 702 | /** |
c68e9c6b | 703 | * clientSetKeepaliveFlag() sets request->flags.proxy_keepalive. |
704 | * This is the client-side persistent connection flag. We need | |
705 | * to set this relatively early in the request processing | |
706 | * to handle hacks for broken servers and clients. | |
707 | */ | |
708 | static void | |
59a1efb2 | 709 | clientSetKeepaliveFlag(ClientHttpRequest * http) |
c68e9c6b | 710 | { |
190154cf | 711 | HttpRequest *request = http->request; |
c68e9c6b | 712 | const HttpHeader *req_hdr = &request->header; |
f6329bc3 | 713 | |
bf8fe701 | 714 | debugs(33, 3, "clientSetKeepaliveFlag: http_ver = " << |
715 | request->http_ver.major << "." << request->http_ver.minor); | |
716 | debugs(33, 3, "clientSetKeepaliveFlag: method = " << | |
60745f24 | 717 | RequestMethodStr(request->method)); |
62e76326 | 718 | |
871c031f AJ |
719 | /* We are HTTP/1.1 facing clients now*/ |
720 | HttpVersion http_ver(1,1); | |
62e76326 | 721 | |
f5e45ad8 | 722 | if (httpMsgIsPersistent(http_ver, req_hdr)) |
723 | request->flags.proxy_keepalive = 1; | |
c68e9c6b | 724 | } |
725 | ||
31be8b80 | 726 | static int |
190154cf | 727 | clientIsContentLengthValid(HttpRequest * r) |
31be8b80 | 728 | { |
914b89a2 | 729 | switch (r->method.id()) { |
62e76326 | 730 | |
ffc128c4 | 731 | case METHOD_PUT: |
62e76326 | 732 | |
ffc128c4 | 733 | case METHOD_POST: |
62e76326 | 734 | /* PUT/POST requires a request entity */ |
735 | return (r->content_length >= 0); | |
736 | ||
ffc128c4 | 737 | case METHOD_GET: |
62e76326 | 738 | |
ffc128c4 | 739 | case METHOD_HEAD: |
62e76326 | 740 | /* We do not want to see a request entity on GET/HEAD requests */ |
741 | return (r->content_length <= 0 || Config.onoff.request_entities); | |
742 | ||
ffc128c4 | 743 | default: |
62e76326 | 744 | /* For other types of requests we don't care */ |
745 | return 1; | |
ffc128c4 | 746 | } |
62e76326 | 747 | |
ffc128c4 | 748 | /* NOT REACHED */ |
31be8b80 | 749 | } |
750 | ||
cf50a0af | 751 | int |
47f6e231 | 752 | clientIsRequestBodyValid(int64_t bodyLength) |
7a2f978b | 753 | { |
c8be6d7b | 754 | if (bodyLength >= 0) |
62e76326 | 755 | return 1; |
756 | ||
7a2f978b | 757 | return 0; |
758 | } | |
759 | ||
c8be6d7b | 760 | int |
47f6e231 | 761 | clientIsRequestBodyTooLargeForPolicy(int64_t bodyLength) |
efd900cb | 762 | { |
c8be6d7b | 763 | if (Config.maxRequestBodySize && |
62e76326 | 764 | bodyLength > Config.maxRequestBodySize) |
765 | return 1; /* too large */ | |
766 | ||
efd900cb | 767 | return 0; |
768 | } | |
769 | ||
e4a67a80 | 770 | #ifndef PURIFY |
c8be6d7b | 771 | int |
1cf238db | 772 | connIsUsable(ConnStateData * conn) |
c8be6d7b | 773 | { |
1cf238db | 774 | if (conn == NULL || !cbdataReferenceValid(conn) || conn->fd == -1) |
62e76326 | 775 | return 0; |
776 | ||
c8be6d7b | 777 | return 1; |
778 | } | |
779 | ||
e4a67a80 | 780 | #endif |
781 | ||
0655fa4d | 782 | ClientSocketContext::Pointer |
783 | ConnStateData::getCurrentContext() const | |
c8be6d7b | 784 | { |
0655fa4d | 785 | assert(this); |
786 | return currentobject; | |
c8be6d7b | 787 | } |
788 | ||
789 | void | |
2324cda2 | 790 | ClientSocketContext::deferRecipientForLater(clientStreamNode * node, HttpReply * rep, StoreIOBuffer receivedData) |
528b2c61 | 791 | { |
bf8fe701 | 792 | debugs(33, 2, "clientSocketRecipient: Deferring request " << http->uri); |
528b2c61 | 793 | assert(flags.deferred == 0); |
794 | flags.deferred = 1; | |
795 | deferredparams.node = node; | |
796 | deferredparams.rep = rep; | |
2324cda2 | 797 | deferredparams.queuedBuffer = receivedData; |
c8be6d7b | 798 | return; |
799 | } | |
800 | ||
801 | int | |
2324cda2 | 802 | responseFinishedOrFailed(HttpReply * rep, StoreIOBuffer const & receivedData) |
c8be6d7b | 803 | { |
2324cda2 | 804 | if (rep == NULL && receivedData.data == NULL && receivedData.length == 0) |
62e76326 | 805 | return 1; |
806 | ||
c8be6d7b | 807 | return 0; |
808 | } | |
809 | ||
0655fa4d | 810 | bool |
811 | ClientSocketContext::startOfOutput() const | |
c8be6d7b | 812 | { |
0655fa4d | 813 | return http->out.size == 0; |
c8be6d7b | 814 | } |
815 | ||
528b2c61 | 816 | size_t |
47f6e231 | 817 | ClientSocketContext::lengthToSend(Range<int64_t> const &available) |
528b2c61 | 818 | { |
47f6e231 | 819 | /*the size of available range can always fit in a size_t type*/ |
820 | size_t maximum = (size_t)available.size(); | |
2512d159 | 821 | |
528b2c61 | 822 | if (!http->request->range) |
62e76326 | 823 | return maximum; |
824 | ||
528b2c61 | 825 | assert (canPackMoreRanges()); |
62e76326 | 826 | |
528b2c61 | 827 | if (http->range_iter.debt() == -1) |
62e76326 | 828 | return maximum; |
829 | ||
528b2c61 | 830 | assert (http->range_iter.debt() > 0); |
62e76326 | 831 | |
2512d159 | 832 | /* TODO this + the last line could be a range intersection calculation */ |
47f6e231 | 833 | if (available.start < http->range_iter.currentSpec()->offset) |
2512d159 | 834 | return 0; |
835 | ||
d85c3078 | 836 | return min(http->range_iter.debt(), (int64_t)maximum); |
528b2c61 | 837 | } |
838 | ||
c8be6d7b | 839 | void |
528b2c61 | 840 | ClientSocketContext::noteSentBodyBytes(size_t bytes) |
841 | { | |
842 | http->out.offset += bytes; | |
62e76326 | 843 | |
528b2c61 | 844 | if (!http->request->range) |
62e76326 | 845 | return; |
846 | ||
528b2c61 | 847 | if (http->range_iter.debt() != -1) { |
62e76326 | 848 | http->range_iter.debt(http->range_iter.debt() - bytes); |
849 | assert (http->range_iter.debt() >= 0); | |
528b2c61 | 850 | } |
62e76326 | 851 | |
dd272b8e | 852 | /* debt() always stops at -1, below that is a bug */ |
853 | assert (http->range_iter.debt() >= -1); | |
528b2c61 | 854 | } |
62e76326 | 855 | |
528b2c61 | 856 | bool |
857 | ClientHttpRequest::multipartRangeRequest() const | |
858 | { | |
859 | return request->multipartRangeRequest(); | |
860 | } | |
861 | ||
862 | bool | |
863 | ClientSocketContext::multipartRangeRequest() const | |
864 | { | |
865 | return http->multipartRangeRequest(); | |
866 | } | |
867 | ||
868 | void | |
869 | ClientSocketContext::sendBody(HttpReply * rep, StoreIOBuffer bodyData) | |
c8be6d7b | 870 | { |
871 | assert(rep == NULL); | |
528b2c61 | 872 | |
873 | if (!multipartRangeRequest()) { | |
2512d159 | 874 | size_t length = lengthToSend(bodyData.range()); |
62e76326 | 875 | noteSentBodyBytes (length); |
9e008dda AJ |
876 | AsyncCall::Pointer call = commCbCall(33, 5, "clientWriteBodyComplete", |
877 | CommIoCbPtrFun(clientWriteBodyComplete, this)); | |
878 | comm_write(fd(), bodyData.data, length, call ); | |
62e76326 | 879 | return; |
528b2c61 | 880 | } |
881 | ||
882 | MemBuf mb; | |
2fe7eff9 | 883 | mb.init(); |
2512d159 | 884 | packRange(bodyData, &mb); |
885 | ||
9e008dda | 886 | if (mb.contentSize()) { |
2512d159 | 887 | /* write */ |
9e008dda AJ |
888 | AsyncCall::Pointer call = commCbCall(33, 5, "clientWriteComplete", |
889 | CommIoCbPtrFun(clientWriteComplete, this)); | |
890 | comm_write_mbuf(fd(), &mb, call); | |
1cf238db | 891 | } else |
2512d159 | 892 | writeComplete(fd(), NULL, 0, COMM_OK); |
c8be6d7b | 893 | } |
894 | ||
63be0a78 | 895 | /** put terminating boundary for multiparts */ |
528b2c61 | 896 | static void |
30abd221 | 897 | clientPackTermBound(String boundary, MemBuf * mb) |
528b2c61 | 898 | { |
826a1fed | 899 | mb->Printf("\r\n--" SQUIDSTRINGPH "--\r\n", SQUIDSTRINGPRINT(boundary)); |
4a7a3d56 | 900 | debugs(33, 6, "clientPackTermBound: buf offset: " << mb->size); |
528b2c61 | 901 | } |
902 | ||
63be0a78 | 903 | /** appends a "part" HTTP header (as in a multi-part/range reply) to the buffer */ |
528b2c61 | 904 | static void |
30abd221 | 905 | clientPackRangeHdr(const HttpReply * rep, const HttpHdrRangeSpec * spec, String boundary, MemBuf * mb) |
528b2c61 | 906 | { |
75faaa7a | 907 | HttpHeader hdr(hoReply); |
528b2c61 | 908 | Packer p; |
909 | assert(rep); | |
910 | assert(spec); | |
911 | ||
912 | /* put boundary */ | |
5b4117d8 | 913 | debugs(33, 5, "clientPackRangeHdr: appending boundary: " << boundary); |
528b2c61 | 914 | /* rfc2046 requires to _prepend_ boundary with <crlf>! */ |
826a1fed | 915 | mb->Printf("\r\n--" SQUIDSTRINGPH "\r\n", SQUIDSTRINGPRINT(boundary)); |
528b2c61 | 916 | |
917 | /* stuff the header with required entries and pack it */ | |
62e76326 | 918 | |
a9925b40 | 919 | if (rep->header.has(HDR_CONTENT_TYPE)) |
920 | hdr.putStr(HDR_CONTENT_TYPE, rep->header.getStr(HDR_CONTENT_TYPE)); | |
62e76326 | 921 | |
528b2c61 | 922 | httpHeaderAddContRange(&hdr, *spec, rep->content_length); |
62e76326 | 923 | |
528b2c61 | 924 | packerToMemInit(&p, mb); |
62e76326 | 925 | |
a9925b40 | 926 | hdr.packInto(&p); |
62e76326 | 927 | |
528b2c61 | 928 | packerClean(&p); |
62e76326 | 929 | |
519e0948 | 930 | hdr.clean(); |
528b2c61 | 931 | |
932 | /* append <crlf> (we packed a header, not a reply) */ | |
2fe7eff9 | 933 | mb->Printf("\r\n"); |
528b2c61 | 934 | } |
935 | ||
63be0a78 | 936 | /** |
bb790702 | 937 | * extracts a "range" from *buf and appends them to mb, updating |
528b2c61 | 938 | * all offsets and such. |
939 | */ | |
c8be6d7b | 940 | void |
2512d159 | 941 | ClientSocketContext::packRange(StoreIOBuffer const &source, MemBuf * mb) |
528b2c61 | 942 | { |
943 | HttpHdrRangeIter * i = &http->range_iter; | |
47f6e231 | 944 | Range<int64_t> available (source.range()); |
b65351fa | 945 | char const *buf = source.data; |
62e76326 | 946 | |
2512d159 | 947 | while (i->currentSpec() && available.size()) { |
62e76326 | 948 | const size_t copy_sz = lengthToSend(available); |
62e76326 | 949 | |
2512d159 | 950 | if (copy_sz) { |
951 | /* | |
952 | * intersection of "have" and "need" ranges must not be empty | |
953 | */ | |
954 | assert(http->out.offset < i->currentSpec()->offset + i->currentSpec()->length); | |
ed013b6c | 955 | assert(http->out.offset + available.size() > i->currentSpec()->offset); |
2512d159 | 956 | |
957 | /* | |
958 | * put boundary and headers at the beginning of a range in a | |
959 | * multi-range | |
960 | */ | |
961 | ||
962 | if (http->multipartRangeRequest() && i->debt() == i->currentSpec()->length) { | |
963 | assert(http->memObject()); | |
964 | clientPackRangeHdr( | |
965 | http->memObject()->getReply(), /* original reply */ | |
966 | i->currentSpec(), /* current range */ | |
967 | i->boundary, /* boundary, the same for all */ | |
968 | mb); | |
969 | } | |
62e76326 | 970 | |
2512d159 | 971 | /* |
972 | * append content | |
973 | */ | |
4a7a3d56 | 974 | debugs(33, 3, "clientPackRange: appending " << copy_sz << " bytes"); |
62e76326 | 975 | |
2512d159 | 976 | noteSentBodyBytes (copy_sz); |
62e76326 | 977 | |
2fe7eff9 | 978 | mb->append(buf, copy_sz); |
62e76326 | 979 | |
2512d159 | 980 | /* |
981 | * update offsets | |
982 | */ | |
983 | available.start += copy_sz; | |
62e76326 | 984 | |
2512d159 | 985 | buf += copy_sz; |
62e76326 | 986 | |
2512d159 | 987 | } |
62e76326 | 988 | |
989 | /* | |
990 | * paranoid check | |
991 | */ | |
871899ca | 992 | assert((available.size() >= 0 && i->debt() >= 0) || i->debt() == -1); |
62e76326 | 993 | |
c7329b75 | 994 | if (!canPackMoreRanges()) { |
bf8fe701 | 995 | debugs(33, 3, "clientPackRange: Returning because !canPackMoreRanges."); |
c7329b75 | 996 | |
997 | if (i->debt() == 0) | |
998 | /* put terminating boundary for multiparts */ | |
999 | clientPackTermBound(i->boundary, mb); | |
62e76326 | 1000 | |
62e76326 | 1001 | return; |
c7329b75 | 1002 | } |
62e76326 | 1003 | |
8bcf08e0 | 1004 | int64_t nextOffset = getNextRangeOffset(); |
62e76326 | 1005 | |
8bcf08e0 | 1006 | assert (nextOffset >= http->out.offset); |
62e76326 | 1007 | |
8bcf08e0 | 1008 | int64_t skip = nextOffset - http->out.offset; |
62e76326 | 1009 | |
2512d159 | 1010 | /* adjust for not to be transmitted bytes */ |
8bcf08e0 | 1011 | http->out.offset = nextOffset; |
2512d159 | 1012 | |
1013 | if (available.size() <= skip) | |
62e76326 | 1014 | return; |
1015 | ||
2512d159 | 1016 | available.start += skip; |
62e76326 | 1017 | |
2512d159 | 1018 | buf += skip; |
1019 | ||
1020 | if (copy_sz == 0) | |
1021 | return; | |
528b2c61 | 1022 | } |
1023 | } | |
1024 | ||
63be0a78 | 1025 | /** returns expected content length for multi-range replies |
528b2c61 | 1026 | * note: assumes that httpHdrRangeCanonize has already been called |
1027 | * warning: assumes that HTTP headers for individual ranges at the | |
1028 | * time of the actuall assembly will be exactly the same as | |
1029 | * the headers when clientMRangeCLen() is called */ | |
1030 | int | |
1031 | ClientHttpRequest::mRangeCLen() | |
c8be6d7b | 1032 | { |
47f6e231 | 1033 | int64_t clen = 0; |
c8be6d7b | 1034 | MemBuf mb; |
528b2c61 | 1035 | |
86a2f789 | 1036 | assert(memObject()); |
528b2c61 | 1037 | |
2fe7eff9 | 1038 | mb.init(); |
528b2c61 | 1039 | HttpHdrRange::iterator pos = request->range->begin(); |
62e76326 | 1040 | |
528b2c61 | 1041 | while (pos != request->range->end()) { |
62e76326 | 1042 | /* account for headers for this range */ |
2fe7eff9 | 1043 | mb.reset(); |
86a2f789 | 1044 | clientPackRangeHdr(memObject()->getReply(), |
62e76326 | 1045 | *pos, range_iter.boundary, &mb); |
1046 | clen += mb.size; | |
528b2c61 | 1047 | |
62e76326 | 1048 | /* account for range content */ |
1049 | clen += (*pos)->length; | |
528b2c61 | 1050 | |
4a7a3d56 | 1051 | debugs(33, 6, "clientMRangeCLen: (clen += " << mb.size << " + " << (*pos)->length << ") == " << clen); |
62e76326 | 1052 | ++pos; |
528b2c61 | 1053 | } |
62e76326 | 1054 | |
528b2c61 | 1055 | /* account for the terminating boundary */ |
2fe7eff9 | 1056 | mb.reset(); |
62e76326 | 1057 | |
528b2c61 | 1058 | clientPackTermBound(range_iter.boundary, &mb); |
62e76326 | 1059 | |
528b2c61 | 1060 | clen += mb.size; |
1061 | ||
2fe7eff9 | 1062 | mb.clean(); |
62e76326 | 1063 | |
528b2c61 | 1064 | return clen; |
1065 | } | |
1066 | ||
63be0a78 | 1067 | /** |
528b2c61 | 1068 | * returns true if If-Range specs match reply, false otherwise |
1069 | */ | |
1070 | static int | |
59a1efb2 | 1071 | clientIfRangeMatch(ClientHttpRequest * http, HttpReply * rep) |
528b2c61 | 1072 | { |
a9925b40 | 1073 | const TimeOrTag spec = http->request->header.getTimeOrTag(HDR_IF_RANGE); |
528b2c61 | 1074 | /* check for parsing falure */ |
62e76326 | 1075 | |
528b2c61 | 1076 | if (!spec.valid) |
62e76326 | 1077 | return 0; |
1078 | ||
528b2c61 | 1079 | /* got an ETag? */ |
1080 | if (spec.tag.str) { | |
a9925b40 | 1081 | ETag rep_tag = rep->header.getETag(HDR_ETAG); |
bf8fe701 | 1082 | debugs(33, 3, "clientIfRangeMatch: ETags: " << spec.tag.str << " and " << |
1083 | (rep_tag.str ? rep_tag.str : "<none>")); | |
62e76326 | 1084 | |
1085 | if (!rep_tag.str) | |
1086 | return 0; /* entity has no etag to compare with! */ | |
1087 | ||
1088 | if (spec.tag.weak || rep_tag.weak) { | |
bf8fe701 | 1089 | debugs(33, 1, "clientIfRangeMatch: Weak ETags are not allowed in If-Range: " << spec.tag.str << " ? " << rep_tag.str); |
62e76326 | 1090 | return 0; /* must use strong validator for sub-range requests */ |
1091 | } | |
1092 | ||
1093 | return etagIsEqual(&rep_tag, &spec.tag); | |
528b2c61 | 1094 | } |
62e76326 | 1095 | |
528b2c61 | 1096 | /* got modification time? */ |
1097 | if (spec.time >= 0) { | |
86a2f789 | 1098 | return http->storeEntry()->lastmod <= spec.time; |
528b2c61 | 1099 | } |
62e76326 | 1100 | |
528b2c61 | 1101 | assert(0); /* should not happen */ |
1102 | return 0; | |
1103 | } | |
1104 | ||
63be0a78 | 1105 | /** |
1106 | * generates a "unique" boundary string for multipart responses | |
528b2c61 | 1107 | * the caller is responsible for cleaning the string */ |
30abd221 | 1108 | String |
528b2c61 | 1109 | ClientHttpRequest::rangeBoundaryStr() const |
1110 | { | |
1111 | assert(this); | |
1112 | const char *key; | |
7dbca7a4 AJ |
1113 | String b(APP_FULLNAME); |
1114 | b.append(":",1); | |
86a2f789 | 1115 | key = storeEntry()->getMD5Text(); |
528b2c61 | 1116 | b.append(key, strlen(key)); |
1117 | return b; | |
1118 | } | |
1119 | ||
63be0a78 | 1120 | /** adds appropriate Range headers if needed */ |
528b2c61 | 1121 | void |
1122 | ClientSocketContext::buildRangeHeader(HttpReply * rep) | |
1123 | { | |
1124 | HttpHeader *hdr = rep ? &rep->header : 0; | |
1125 | const char *range_err = NULL; | |
190154cf | 1126 | HttpRequest *request = http->request; |
528b2c61 | 1127 | assert(request->range); |
1128 | /* check if we still want to do ranges */ | |
62e76326 | 1129 | |
528b2c61 | 1130 | if (!rep) |
62e76326 | 1131 | range_err = "no [parse-able] reply"; |
528b2c61 | 1132 | else if ((rep->sline.status != HTTP_OK) && (rep->sline.status != HTTP_PARTIAL_CONTENT)) |
62e76326 | 1133 | range_err = "wrong status code"; |
a9925b40 | 1134 | else if (hdr->has(HDR_CONTENT_RANGE)) |
62e76326 | 1135 | range_err = "origin server does ranges"; |
528b2c61 | 1136 | else if (rep->content_length < 0) |
62e76326 | 1137 | range_err = "unknown length"; |
86a2f789 | 1138 | else if (rep->content_length != http->memObject()->getReply()->content_length) |
62e76326 | 1139 | range_err = "INCONSISTENT length"; /* a bug? */ |
96cbbe03 | 1140 | |
1141 | /* hits only - upstream peer determines correct behaviour on misses, and client_side_reply determines | |
9e008dda | 1142 | * hits candidates |
96cbbe03 | 1143 | */ |
a9925b40 | 1144 | else if (logTypeIsATcpHit(http->logType) && http->request->header.has(HDR_IF_RANGE) && !clientIfRangeMatch(http, rep)) |
62e76326 | 1145 | range_err = "If-Range match failed"; |
528b2c61 | 1146 | else if (!http->request->range->canonize(rep)) |
62e76326 | 1147 | range_err = "canonization failed"; |
528b2c61 | 1148 | else if (http->request->range->isComplex()) |
62e76326 | 1149 | range_err = "too complex range header"; |
86f6a21f | 1150 | else if (!logTypeIsATcpHit(http->logType) && http->request->range->offsetLimitExceeded()) |
62e76326 | 1151 | range_err = "range outside range_offset_limit"; |
1152 | ||
528b2c61 | 1153 | /* get rid of our range specs on error */ |
1154 | if (range_err) { | |
b631f31c | 1155 | /* XXX We do this here because we need canonisation etc. However, this current |
9e008dda | 1156 | * code will lead to incorrect store offset requests - the store will have the |
b631f31c | 1157 | * offset data, but we won't be requesting it. |
1158 | * So, we can either re-request, or generate an error | |
1159 | */ | |
bf8fe701 | 1160 | debugs(33, 3, "clientBuildRangeHeader: will not do ranges: " << range_err << "."); |
00d77d6b | 1161 | delete http->request->range; |
62e76326 | 1162 | http->request->range = NULL; |
c8be6d7b | 1163 | } else { |
3cff087f | 1164 | /* XXX: TODO: Review, this unconditional set may be wrong. - TODO: review. */ |
1165 | httpStatusLineSet(&rep->sline, rep->sline.version, | |
1166 | HTTP_PARTIAL_CONTENT, NULL); | |
fedd1531 | 1167 | // web server responded with a valid, but unexpected range. |
1168 | // will (try-to) forward as-is. | |
1169 | //TODO: we should cope with multirange request/responses | |
1170 | bool replyMatchRequest = rep->content_range != NULL ? | |
1171 | request->range->contains(rep->content_range->spec) : | |
1172 | true; | |
62e76326 | 1173 | const int spec_count = http->request->range->specs.count; |
47f6e231 | 1174 | int64_t actual_clen = -1; |
62e76326 | 1175 | |
47f6e231 | 1176 | debugs(33, 3, "clientBuildRangeHeader: range spec count: " << |
9e008dda | 1177 | spec_count << " virgin clen: " << rep->content_length); |
62e76326 | 1178 | assert(spec_count > 0); |
1179 | /* ETags should not be returned with Partial Content replies? */ | |
a9925b40 | 1180 | hdr->delById(HDR_ETAG); |
62e76326 | 1181 | /* append appropriate header(s) */ |
1182 | ||
1183 | if (spec_count == 1) { | |
fedd1531 | 1184 | if (!replyMatchRequest) { |
1185 | hdr->delById(HDR_CONTENT_RANGE); | |
1186 | hdr->putContRange(rep->content_range); | |
1187 | actual_clen = rep->content_length; | |
1188 | //http->range_iter.pos = rep->content_range->spec.begin(); | |
1189 | (*http->range_iter.pos)->offset = rep->content_range->spec.offset; | |
1190 | (*http->range_iter.pos)->length = rep->content_range->spec.length; | |
1191 | ||
1192 | } else { | |
1193 | HttpHdrRange::iterator pos = http->request->range->begin(); | |
1194 | assert(*pos); | |
1195 | /* append Content-Range */ | |
1196 | ||
1197 | if (!hdr->has(HDR_CONTENT_RANGE)) { | |
1198 | /* No content range, so this was a full object we are | |
1199 | * sending parts of. | |
1200 | */ | |
1201 | httpHeaderAddContRange(hdr, **pos, rep->content_length); | |
1202 | } | |
1203 | ||
1204 | /* set new Content-Length to the actual number of bytes | |
1205 | * transmitted in the message-body */ | |
1206 | actual_clen = (*pos)->length; | |
62e76326 | 1207 | } |
62e76326 | 1208 | } else { |
1209 | /* multipart! */ | |
1210 | /* generate boundary string */ | |
1211 | http->range_iter.boundary = http->rangeBoundaryStr(); | |
1212 | /* delete old Content-Type, add ours */ | |
a9925b40 | 1213 | hdr->delById(HDR_CONTENT_TYPE); |
62e76326 | 1214 | httpHeaderPutStrf(hdr, HDR_CONTENT_TYPE, |
826a1fed FC |
1215 | "multipart/byteranges; boundary=\"" SQUIDSTRINGPH "\"", |
1216 | SQUIDSTRINGPRINT(http->range_iter.boundary)); | |
62e76326 | 1217 | /* Content-Length is not required in multipart responses |
1218 | * but it is always nice to have one */ | |
1219 | actual_clen = http->mRangeCLen(); | |
2512d159 | 1220 | /* http->out needs to start where we want data at */ |
1221 | http->out.offset = http->range_iter.currentSpec()->offset; | |
62e76326 | 1222 | } |
1223 | ||
1224 | /* replace Content-Length header */ | |
1225 | assert(actual_clen >= 0); | |
1226 | ||
a9925b40 | 1227 | hdr->delById(HDR_CONTENT_LENGTH); |
62e76326 | 1228 | |
47f6e231 | 1229 | hdr->putInt64(HDR_CONTENT_LENGTH, actual_clen); |
62e76326 | 1230 | |
bf8fe701 | 1231 | debugs(33, 3, "clientBuildRangeHeader: actual content length: " << actual_clen); |
62e76326 | 1232 | |
1233 | /* And start the range iter off */ | |
1234 | http->range_iter.updateSpec(); | |
c8be6d7b | 1235 | } |
528b2c61 | 1236 | } |
1237 | ||
1238 | void | |
1239 | ClientSocketContext::prepareReply(HttpReply * rep) | |
1240 | { | |
fedd1531 | 1241 | reply = rep; |
1242 | ||
528b2c61 | 1243 | if (http->request->range) |
62e76326 | 1244 | buildRangeHeader(rep); |
528b2c61 | 1245 | } |
1246 | ||
1247 | void | |
1248 | ClientSocketContext::sendStartOfMessage(HttpReply * rep, StoreIOBuffer bodyData) | |
1249 | { | |
1250 | prepareReply(rep); | |
528b2c61 | 1251 | assert (rep); |
06a5ae20 | 1252 | MemBuf *mb = rep->pack(); |
528b2c61 | 1253 | /* Save length of headers for persistent conn checks */ |
032785bf | 1254 | http->out.headers_sz = mb->contentSize(); |
528b2c61 | 1255 | #if HEADERS_LOG |
62e76326 | 1256 | |
528b2c61 | 1257 | headersLog(0, 0, http->request->method, rep); |
1258 | #endif | |
62e76326 | 1259 | |
c8be6d7b | 1260 | if (bodyData.data && bodyData.length) { |
62e76326 | 1261 | if (!multipartRangeRequest()) { |
2512d159 | 1262 | size_t length = lengthToSend(bodyData.range()); |
62e76326 | 1263 | noteSentBodyBytes (length); |
1264 | ||
2fe7eff9 | 1265 | mb->append(bodyData.data, length); |
62e76326 | 1266 | } else { |
032785bf | 1267 | packRange(bodyData, mb); |
62e76326 | 1268 | } |
c8be6d7b | 1269 | } |
62e76326 | 1270 | |
c8be6d7b | 1271 | /* write */ |
425802c8 | 1272 | debugs(33,7, HERE << "sendStartOfMessage schedules clientWriteComplete"); |
9e008dda AJ |
1273 | AsyncCall::Pointer call = commCbCall(33, 5, "clientWriteComplete", |
1274 | CommIoCbPtrFun(clientWriteComplete, this)); | |
1cf238db | 1275 | comm_write_mbuf(fd(), mb, call); |
62e76326 | 1276 | |
032785bf | 1277 | delete mb; |
c8be6d7b | 1278 | } |
1279 | ||
63be0a78 | 1280 | /** |
7dc5f514 | 1281 | * Write a chunk of data to a client socket. If the reply is present, |
1282 | * send the reply headers down the wire too, and clean them up when | |
1283 | * finished. | |
9e008dda | 1284 | * Pre-condition: |
edce4d98 | 1285 | * The request is one backed by a connection, not an internal request. |
1286 | * data context is not NULL | |
1287 | * There are no more entries in the stream chain. | |
2246b732 | 1288 | */ |
edce4d98 | 1289 | static void |
59a1efb2 | 1290 | clientSocketRecipient(clientStreamNode * node, ClientHttpRequest * http, |
2324cda2 | 1291 | HttpReply * rep, StoreIOBuffer receivedData) |
edce4d98 | 1292 | { |
1293 | int fd; | |
edce4d98 | 1294 | /* Test preconditions */ |
1295 | assert(node != NULL); | |
559da936 | 1296 | PROF_start(clientSocketRecipient); |
62e76326 | 1297 | /* TODO: handle this rather than asserting |
9e008dda AJ |
1298 | * - it should only ever happen if we cause an abort and |
1299 | * the callback chain loops back to here, so we can simply return. | |
1300 | * However, that itself shouldn't happen, so it stays as an assert for now. | |
edce4d98 | 1301 | */ |
1302 | assert(cbdataReferenceValid(node)); | |
edce4d98 | 1303 | assert(node->node.next == NULL); |
0655fa4d | 1304 | ClientSocketContext::Pointer context = dynamic_cast<ClientSocketContext *>(node->data.getRaw()); |
94a396a3 | 1305 | assert(context != NULL); |
98242069 | 1306 | assert(connIsUsable(http->getConn())); |
1307 | fd = http->getConn()->fd; | |
528b2c61 | 1308 | /* TODO: check offset is what we asked for */ |
62e76326 | 1309 | |
98242069 | 1310 | if (context != http->getConn()->getCurrentContext()) { |
2324cda2 | 1311 | context->deferRecipientForLater(node, rep, receivedData); |
559da936 | 1312 | PROF_stop(clientSocketRecipient); |
62e76326 | 1313 | return; |
edce4d98 | 1314 | } |
62e76326 | 1315 | |
2324cda2 | 1316 | if (responseFinishedOrFailed(rep, receivedData)) { |
0655fa4d | 1317 | context->writeComplete(fd, NULL, 0, COMM_OK); |
559da936 | 1318 | PROF_stop(clientSocketRecipient); |
62e76326 | 1319 | return; |
edce4d98 | 1320 | } |
62e76326 | 1321 | |
0655fa4d | 1322 | if (!context->startOfOutput()) |
2324cda2 | 1323 | context->sendBody(rep, receivedData); |
7684c4b1 | 1324 | else { |
a4785954 | 1325 | assert(rep); |
90a8964c | 1326 | http->al.reply = HTTPMSGLOCK(rep); |
2324cda2 | 1327 | context->sendStartOfMessage(rep, receivedData); |
7684c4b1 | 1328 | } |
fc68f6b1 | 1329 | |
559da936 | 1330 | PROF_stop(clientSocketRecipient); |
edce4d98 | 1331 | } |
1332 | ||
63be0a78 | 1333 | /** |
1334 | * Called when a downstream node is no longer interested in | |
edce4d98 | 1335 | * our data. As we are a terminal node, this means on aborts |
1336 | * only | |
1337 | */ | |
1338 | void | |
59a1efb2 | 1339 | clientSocketDetach(clientStreamNode * node, ClientHttpRequest * http) |
edce4d98 | 1340 | { |
edce4d98 | 1341 | /* Test preconditions */ |
1342 | assert(node != NULL); | |
62e76326 | 1343 | /* TODO: handle this rather than asserting |
9e008dda AJ |
1344 | * - it should only ever happen if we cause an abort and |
1345 | * the callback chain loops back to here, so we can simply return. | |
edce4d98 | 1346 | * However, that itself shouldn't happen, so it stays as an assert for now. |
1347 | */ | |
1348 | assert(cbdataReferenceValid(node)); | |
1349 | /* Set null by ContextFree */ | |
edce4d98 | 1350 | assert(node->node.next == NULL); |
0655fa4d | 1351 | /* this is the assert discussed above */ |
e4a67a80 | 1352 | assert(NULL == dynamic_cast<ClientSocketContext *>(node->data.getRaw())); |
edce4d98 | 1353 | /* We are only called when the client socket shutsdown. |
1354 | * Tell the prev pipeline member we're finished | |
1355 | */ | |
1356 | clientStreamDetach(node, http); | |
7a2f978b | 1357 | } |
1358 | ||
f4f278b5 | 1359 | static void |
25f651c1 | 1360 | clientWriteBodyComplete(int fd, char *buf, size_t size, comm_err_t errflag, int xerrno, void *data) |
f4f278b5 | 1361 | { |
425802c8 | 1362 | debugs(33,7, HERE << "clientWriteBodyComplete schedules clientWriteComplete"); |
2b663917 | 1363 | clientWriteComplete(fd, NULL, size, errflag, xerrno, data); |
c8be6d7b | 1364 | } |
1365 | ||
1366 | void | |
a46d2c0e | 1367 | ConnStateData::readNextRequest() |
c8be6d7b | 1368 | { |
bf8fe701 | 1369 | debugs(33, 5, "ConnStateData::readNextRequest: FD " << fd << " reading next req"); |
1370 | ||
a46d2c0e | 1371 | fd_note(fd, "Waiting for next request"); |
63be0a78 | 1372 | /** |
c8be6d7b | 1373 | * Set the timeout BEFORE calling clientReadRequest(). |
1374 | */ | |
1cf238db | 1375 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; |
1376 | AsyncCall::Pointer timeoutCall = asyncCall(33, 5, "ConnStateData::requestTimeout", | |
9e008dda | 1377 | TimeoutDialer(this, &ConnStateData::requestTimeout)); |
1cf238db | 1378 | commSetTimeout(fd, Config.Timeout.persistent_request, timeoutCall); |
1379 | ||
a46d2c0e | 1380 | readSomeData(); |
63be0a78 | 1381 | /** Please don't do anything with the FD past here! */ |
c8be6d7b | 1382 | } |
1383 | ||
09d3938c | 1384 | static void |
1cf238db | 1385 | ClientSocketContextPushDeferredIfNeeded(ClientSocketContext::Pointer deferredRequest, ConnStateData * conn) |
c8be6d7b | 1386 | { |
bf8fe701 | 1387 | debugs(33, 2, "ClientSocketContextPushDeferredIfNeeded: FD " << conn->fd << " Sending next"); |
1388 | ||
63be0a78 | 1389 | /** If the client stream is waiting on a socket write to occur, then */ |
62e76326 | 1390 | |
c8be6d7b | 1391 | if (deferredRequest->flags.deferred) { |
63be0a78 | 1392 | /** NO data is allowed to have been sent. */ |
62e76326 | 1393 | assert(deferredRequest->http->out.size == 0); |
63be0a78 | 1394 | /** defer now. */ |
62e76326 | 1395 | clientSocketRecipient(deferredRequest->deferredparams.node, |
1396 | deferredRequest->http, | |
1397 | deferredRequest->deferredparams.rep, | |
1398 | deferredRequest->deferredparams.queuedBuffer); | |
c8be6d7b | 1399 | } |
62e76326 | 1400 | |
63be0a78 | 1401 | /** otherwise, the request is still active in a callbacksomewhere, |
c8be6d7b | 1402 | * and we are done |
f4f278b5 | 1403 | */ |
f4f278b5 | 1404 | } |
1405 | ||
0655fa4d | 1406 | void |
1407 | ClientSocketContext::keepaliveNextRequest() | |
1a92a1e2 | 1408 | { |
1cf238db | 1409 | ConnStateData * conn = http->getConn(); |
f900210a | 1410 | bool do_next_read = false; |
bd4e6ec8 | 1411 | |
bf8fe701 | 1412 | debugs(33, 3, "ClientSocketContext::keepaliveNextRequest: FD " << conn->fd); |
0655fa4d | 1413 | connIsFinished(); |
1414 | ||
d67acb4e AJ |
1415 | if (conn->pinning.pinned && conn->pinning.fd == -1) { |
1416 | debugs(33, 2, "clientKeepaliveNextRequest: FD " << conn->fd << " Connection was pinned but server side gone. Terminating client connection"); | |
1417 | comm_close(conn->fd); | |
1418 | return; | |
1419 | } | |
1420 | ||
63be0a78 | 1421 | /** \par |
f900210a | 1422 | * Attempt to parse a request from the request buffer. |
1423 | * If we've been fed a pipelined request it may already | |
1424 | * be in our read buffer. | |
1425 | * | |
63be0a78 | 1426 | \par |
f900210a | 1427 | * This needs to fall through - if we're unlucky and parse the _last_ request |
1428 | * from our read buffer we may never re-register for another client read. | |
1429 | */ | |
1430 | ||
1431 | if (clientParseRequest(conn, do_next_read)) { | |
bf8fe701 | 1432 | debugs(33, 3, "clientSocketContext::keepaliveNextRequest: FD " << conn->fd << ": parsed next request from buffer"); |
f900210a | 1433 | } |
1434 | ||
63be0a78 | 1435 | /** \par |
f900210a | 1436 | * Either we need to kick-start another read or, if we have |
1437 | * a half-closed connection, kill it after the last request. | |
1438 | * This saves waiting for half-closed connections to finished being | |
1439 | * half-closed _AND_ then, sometimes, spending "Timeout" time in | |
1440 | * the keepalive "Waiting for next request" state. | |
1441 | */ | |
1442 | if (commIsHalfClosed(conn->fd) && (conn->getConcurrentRequestCount() == 0)) { | |
bf8fe701 | 1443 | debugs(33, 3, "ClientSocketContext::keepaliveNextRequest: half-closed client with no pending requests, closing"); |
f900210a | 1444 | comm_close(conn->fd); |
1445 | return; | |
1446 | } | |
1447 | ||
0655fa4d | 1448 | ClientSocketContext::Pointer deferredRequest; |
62e76326 | 1449 | |
63be0a78 | 1450 | /** \par |
f900210a | 1451 | * At this point we either have a parsed request (which we've |
1452 | * kicked off the processing for) or not. If we have a deferred | |
1453 | * request (parsed but deferred for pipeling processing reasons) | |
1454 | * then look at processing it. If not, simply kickstart | |
1455 | * another read. | |
1456 | */ | |
1457 | ||
1458 | if ((deferredRequest = conn->getCurrentContext()).getRaw()) { | |
bf8fe701 | 1459 | debugs(33, 3, "ClientSocketContext:: FD " << conn->fd << ": calling PushDeferredIfNeeded"); |
62e76326 | 1460 | ClientSocketContextPushDeferredIfNeeded(deferredRequest, conn); |
f900210a | 1461 | } else { |
bf8fe701 | 1462 | debugs(33, 3, "ClientSocketContext:: FD " << conn->fd << ": calling conn->readNextRequest()"); |
f900210a | 1463 | conn->readNextRequest(); |
1464 | } | |
1a92a1e2 | 1465 | } |
1466 | ||
c8be6d7b | 1467 | void |
1468 | clientUpdateSocketStats(log_type logType, size_t size) | |
1469 | { | |
1470 | if (size == 0) | |
62e76326 | 1471 | return; |
1472 | ||
c8be6d7b | 1473 | kb_incr(&statCounter.client_http.kbytes_out, size); |
62e76326 | 1474 | |
c8be6d7b | 1475 | if (logTypeIsATcpHit(logType)) |
62e76326 | 1476 | kb_incr(&statCounter.client_http.hit_kbytes_out, size); |
c8be6d7b | 1477 | } |
1478 | ||
63be0a78 | 1479 | /** |
528b2c61 | 1480 | * increments iterator "i" |
63be0a78 | 1481 | * used by clientPackMoreRanges |
1482 | * | |
1483 | \retval true there is still data available to pack more ranges | |
9e008dda | 1484 | \retval false |
63be0a78 | 1485 | */ |
528b2c61 | 1486 | bool |
1487 | ClientSocketContext::canPackMoreRanges() const | |
1488 | { | |
63be0a78 | 1489 | /** first update iterator "i" if needed */ |
62e76326 | 1490 | |
528b2c61 | 1491 | if (!http->range_iter.debt()) { |
63be0a78 | 1492 | debugs(33, 5, "ClientSocketContext::canPackMoreRanges: At end of current range spec for FD " << fd()); |
62e76326 | 1493 | |
1494 | if (http->range_iter.pos.incrementable()) | |
1495 | ++http->range_iter.pos; | |
1496 | ||
1497 | http->range_iter.updateSpec(); | |
528b2c61 | 1498 | } |
62e76326 | 1499 | |
528b2c61 | 1500 | assert(!http->range_iter.debt() == !http->range_iter.currentSpec()); |
63be0a78 | 1501 | |
528b2c61 | 1502 | /* paranoid sync condition */ |
1503 | /* continue condition: need_more_data */ | |
bf8fe701 | 1504 | debugs(33, 5, "ClientSocketContext::canPackMoreRanges: returning " << (http->range_iter.currentSpec() ? true : false)); |
528b2c61 | 1505 | return http->range_iter.currentSpec() ? true : false; |
1506 | } | |
1507 | ||
47f6e231 | 1508 | int64_t |
528b2c61 | 1509 | ClientSocketContext::getNextRangeOffset() const |
1510 | { | |
1511 | if (http->request->range) { | |
62e76326 | 1512 | /* offset in range specs does not count the prefix of an http msg */ |
47f6e231 | 1513 | debugs (33, 5, "ClientSocketContext::getNextRangeOffset: http offset " << http->out.offset); |
62e76326 | 1514 | /* check: reply was parsed and range iterator was initialized */ |
1515 | assert(http->range_iter.valid); | |
1516 | /* filter out data according to range specs */ | |
1517 | assert (canPackMoreRanges()); | |
1518 | { | |
47f6e231 | 1519 | int64_t start; /* offset of still missing data */ |
62e76326 | 1520 | assert(http->range_iter.currentSpec()); |
1521 | start = http->range_iter.currentSpec()->offset + http->range_iter.currentSpec()->length - http->range_iter.debt(); | |
47f6e231 | 1522 | debugs(33, 3, "clientPackMoreRanges: in: offset: " << http->out.offset); |
1523 | debugs(33, 3, "clientPackMoreRanges: out:" | |
9e008dda AJ |
1524 | " start: " << start << |
1525 | " spec[" << http->range_iter.pos - http->request->range->begin() << "]:" << | |
1526 | " [" << http->range_iter.currentSpec()->offset << | |
1527 | ", " << http->range_iter.currentSpec()->offset + http->range_iter.currentSpec()->length << ")," | |
1528 | " len: " << http->range_iter.currentSpec()->length << | |
1529 | " debt: " << http->range_iter.debt()); | |
62e76326 | 1530 | if (http->range_iter.currentSpec()->length != -1) |
1531 | assert(http->out.offset <= start); /* we did not miss it */ | |
1532 | ||
1533 | return start; | |
1534 | } | |
1535 | ||
fedd1531 | 1536 | } else if (reply && reply->content_range) { |
1537 | /* request does not have ranges, but reply does */ | |
63be0a78 | 1538 | /** \todo FIXME: should use range_iter_pos on reply, as soon as reply->content_range |
1539 | * becomes HttpHdrRange rather than HttpHdrRangeSpec. | |
1540 | */ | |
fedd1531 | 1541 | return http->out.offset + reply->content_range->spec.offset; |
528b2c61 | 1542 | } |
1543 | ||
1544 | return http->out.offset; | |
1545 | } | |
1546 | ||
c8be6d7b | 1547 | void |
528b2c61 | 1548 | ClientSocketContext::pullData() |
c8be6d7b | 1549 | { |
ec69c304 | 1550 | debugs(33, 5, "ClientSocketContext::pullData: FD " << fd() << |
9e008dda | 1551 | " attempting to pull upstream data"); |
bf8fe701 | 1552 | |
c8be6d7b | 1553 | /* More data will be coming from the stream. */ |
528b2c61 | 1554 | StoreIOBuffer readBuffer; |
1555 | /* XXX: Next requested byte in the range sequence */ | |
1556 | /* XXX: length = getmaximumrangelenfgth */ | |
1557 | readBuffer.offset = getNextRangeOffset(); | |
c8be6d7b | 1558 | readBuffer.length = HTTP_REQBUF_SZ; |
528b2c61 | 1559 | readBuffer.data = reqbuf; |
1560 | /* we may note we have reached the end of the wanted ranges */ | |
1561 | clientStreamRead(getTail(), http, readBuffer); | |
1562 | } | |
1563 | ||
62e76326 | 1564 | clientStream_status_t |
528b2c61 | 1565 | ClientSocketContext::socketState() |
1566 | { | |
1567 | switch (clientStreamStatus(getTail(), http)) { | |
62e76326 | 1568 | |
1569 | case STREAM_NONE: | |
528b2c61 | 1570 | /* check for range support ending */ |
62e76326 | 1571 | |
528b2c61 | 1572 | if (http->request->range) { |
62e76326 | 1573 | /* check: reply was parsed and range iterator was initialized */ |
1574 | assert(http->range_iter.valid); | |
1575 | /* filter out data according to range specs */ | |
1576 | ||
1577 | if (!canPackMoreRanges()) { | |
920ba08d | 1578 | debugs(33, 5, HERE << "Range request at end of returnable " << |
9e008dda | 1579 | "range sequence on FD " << fd()); |
62e76326 | 1580 | |
1581 | if (http->request->flags.proxy_keepalive) | |
1582 | return STREAM_COMPLETE; | |
1583 | else | |
1584 | return STREAM_UNPLANNED_COMPLETE; | |
1585 | } | |
fedd1531 | 1586 | } else if (reply && reply->content_range) { |
425802c8 | 1587 | /* reply has content-range, but Squid is not managing ranges */ |
1588 | const int64_t &bytesSent = http->out.offset; | |
1589 | const int64_t &bytesExpected = reply->content_range->spec.length; | |
fedd1531 | 1590 | |
425802c8 | 1591 | debugs(33, 7, HERE << "body bytes sent vs. expected: " << |
9e008dda AJ |
1592 | bytesSent << " ? " << bytesExpected << " (+" << |
1593 | reply->content_range->spec.offset << ")"); | |
425802c8 | 1594 | |
1595 | // did we get at least what we expected, based on range specs? | |
1596 | ||
65058d64 CT |
1597 | if (bytesSent == bytesExpected) { // got everything |
1598 | if (http->request->flags.proxy_keepalive) | |
1599 | return STREAM_COMPLETE; | |
1600 | else | |
1601 | return STREAM_UNPLANNED_COMPLETE; | |
1602 | } | |
425802c8 | 1603 | |
1604 | // The logic below is not clear: If we got more than we | |
1605 | // expected why would persistency matter? Should not this | |
1606 | // always be an error? | |
1607 | if (bytesSent > bytesExpected) { // got extra | |
fedd1531 | 1608 | if (http->request->flags.proxy_keepalive) |
1609 | return STREAM_COMPLETE; | |
1610 | else | |
1611 | return STREAM_UNPLANNED_COMPLETE; | |
1612 | } | |
425802c8 | 1613 | |
1614 | // did not get enough yet, expecting more | |
62e76326 | 1615 | } |
1616 | ||
1617 | return STREAM_NONE; | |
1618 | ||
1619 | case STREAM_COMPLETE: | |
528b2c61 | 1620 | return STREAM_COMPLETE; |
62e76326 | 1621 | |
1622 | case STREAM_UNPLANNED_COMPLETE: | |
1623 | return STREAM_UNPLANNED_COMPLETE; | |
1624 | ||
1625 | case STREAM_FAILED: | |
1626 | return STREAM_FAILED; | |
528b2c61 | 1627 | } |
62e76326 | 1628 | |
528b2c61 | 1629 | fatal ("unreachable code\n"); |
1630 | return STREAM_NONE; | |
c8be6d7b | 1631 | } |
edce4d98 | 1632 | |
63be0a78 | 1633 | /** |
1634 | * A write has just completed to the client, or we have just realised there is | |
edce4d98 | 1635 | * no more data to send. |
1636 | */ | |
e6ccf245 | 1637 | void |
2b663917 | 1638 | clientWriteComplete(int fd, char *bufnotused, size_t size, comm_err_t errflag, int xerrno, void *data) |
7a2f978b | 1639 | { |
528b2c61 | 1640 | ClientSocketContext *context = (ClientSocketContext *)data; |
0655fa4d | 1641 | context->writeComplete (fd, bufnotused, size, errflag); |
1642 | } | |
1643 | ||
f692498b AJ |
1644 | /// remembers the abnormal connection termination for logging purposes |
1645 | void | |
1646 | ClientSocketContext::noteIoError(const int xerrno) | |
1647 | { | |
1648 | if (http) { | |
1649 | if (xerrno == ETIMEDOUT) | |
1650 | http->al.http.timedout = true; | |
1651 | else // even if xerrno is zero (which means read abort/eof) | |
1652 | http->al.http.aborted = true; | |
1653 | } | |
1654 | } | |
1655 | ||
1656 | ||
55e44db9 | 1657 | void |
1658 | ClientSocketContext::doClose() | |
1659 | { | |
1660 | comm_close(fd()); | |
1661 | } | |
1662 | ||
6e1d409c AR |
1663 | /** Called to initiate (and possibly complete) closing of the context. |
1664 | * The underlying socket may be already closed */ | |
55e44db9 | 1665 | void |
5f8252d2 | 1666 | ClientSocketContext::initiateClose(const char *reason) |
55e44db9 | 1667 | { |
5f8252d2 | 1668 | debugs(33, 5, HERE << "initiateClose: closing for " << reason); |
fc68f6b1 | 1669 | |
3b299123 | 1670 | if (http != NULL) { |
1cf238db | 1671 | ConnStateData * conn = http->getConn(); |
3b299123 | 1672 | |
1673 | if (conn != NULL) { | |
3e62bd58 | 1674 | if (const int64_t expecting = conn->bodySizeLeft()) { |
5f8252d2 | 1675 | debugs(33, 5, HERE << "ClientSocketContext::initiateClose: " << |
1676 | "closing, but first " << conn << " needs to read " << | |
1677 | expecting << " request body bytes with " << | |
1678 | conn->in.notYetUsed << " notYetUsed"); | |
1679 | ||
1680 | if (conn->closing()) { | |
1681 | debugs(33, 2, HERE << "avoiding double-closing " << conn); | |
1682 | return; | |
1683 | } | |
fc68f6b1 | 1684 | |
3b299123 | 1685 | /* |
1686 | * XXX We assume the reply fits in the TCP transmit | |
1687 | * window. If not the connection may stall while sending | |
1688 | * the reply (before reaching here) if the client does not | |
1689 | * try to read the response while sending the request body. | |
1690 | * As of yet we have not received any complaints indicating | |
1691 | * this may be an issue. | |
55e44db9 | 1692 | */ |
5f8252d2 | 1693 | conn->startClosing(reason); |
fc68f6b1 | 1694 | |
3b299123 | 1695 | return; |
1696 | } | |
1697 | } | |
55e44db9 | 1698 | } |
1699 | ||
1700 | doClose(); | |
1701 | } | |
1702 | ||
0655fa4d | 1703 | void |
e053c141 | 1704 | ClientSocketContext::writeComplete(int aFileDescriptor, char *bufnotused, size_t size, comm_err_t errflag) |
0655fa4d | 1705 | { |
86a2f789 | 1706 | StoreEntry *entry = http->storeEntry(); |
7a2f978b | 1707 | http->out.size += size; |
e053c141 FC |
1708 | assert(aFileDescriptor > -1); |
1709 | debugs(33, 5, "clientWriteComplete: FD " << aFileDescriptor << ", sz " << size << | |
e4049756 | 1710 | ", err " << errflag << ", off " << http->out.size << ", len " << |
707fdc47 | 1711 | entry ? entry->objectLen() : 0); |
c8be6d7b | 1712 | clientUpdateSocketStats(http->logType, size); |
e053c141 | 1713 | assert (this->fd() == aFileDescriptor); |
62e76326 | 1714 | |
5f8252d2 | 1715 | /* Bail out quickly on COMM_ERR_CLOSING - close handlers will tidy up */ |
fc68f6b1 | 1716 | |
5f8252d2 | 1717 | if (errflag == COMM_ERR_CLOSING) |
1718 | return; | |
1719 | ||
e053c141 | 1720 | if (errflag || clientHttpRequestStatus(aFileDescriptor, http)) { |
5f8252d2 | 1721 | initiateClose("failure or true request status"); |
62e76326 | 1722 | /* Do we leak here ? */ |
1723 | return; | |
edce4d98 | 1724 | } |
62e76326 | 1725 | |
0655fa4d | 1726 | switch (socketState()) { |
62e76326 | 1727 | |
edce4d98 | 1728 | case STREAM_NONE: |
0655fa4d | 1729 | pullData(); |
62e76326 | 1730 | break; |
1731 | ||
edce4d98 | 1732 | case STREAM_COMPLETE: |
e053c141 | 1733 | debugs(33, 5, "clientWriteComplete: FD " << aFileDescriptor << " Keeping Alive"); |
0655fa4d | 1734 | keepaliveNextRequest(); |
62e76326 | 1735 | return; |
1736 | ||
edce4d98 | 1737 | case STREAM_UNPLANNED_COMPLETE: |
6e1d409c AR |
1738 | initiateClose("STREAM_UNPLANNED_COMPLETE"); |
1739 | return; | |
62e76326 | 1740 | |
edce4d98 | 1741 | case STREAM_FAILED: |
6e1d409c | 1742 | initiateClose("STREAM_FAILED"); |
62e76326 | 1743 | return; |
1744 | ||
edce4d98 | 1745 | default: |
62e76326 | 1746 | fatal("Hit unreachable code in clientWriteComplete\n"); |
7a2f978b | 1747 | } |
1748 | } | |
1749 | ||
e6ccf245 | 1750 | extern "C" CSR clientGetMoreData; |
1751 | extern "C" CSS clientReplyStatus; | |
1752 | extern "C" CSD clientReplyDetach; | |
edce4d98 | 1753 | |
528b2c61 | 1754 | static ClientSocketContext * |
1cf238db | 1755 | parseHttpRequestAbort(ConnStateData * conn, const char *uri) |
038eb4ed | 1756 | { |
59a1efb2 | 1757 | ClientHttpRequest *http; |
528b2c61 | 1758 | ClientSocketContext *context; |
1759 | StoreIOBuffer tempBuffer; | |
a0355e95 | 1760 | http = new ClientHttpRequest(conn); |
c8be6d7b | 1761 | http->req_sz = conn->in.notYetUsed; |
edce4d98 | 1762 | http->uri = xstrdup(uri); |
c4b7a5a9 | 1763 | setLogUri (http, uri); |
528b2c61 | 1764 | context = ClientSocketContextNew(http); |
c8be6d7b | 1765 | tempBuffer.data = context->reqbuf; |
1766 | tempBuffer.length = HTTP_REQBUF_SZ; | |
edce4d98 | 1767 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, |
0655fa4d | 1768 | clientReplyStatus, new clientReplyContext(http), clientSocketRecipient, |
62e76326 | 1769 | clientSocketDetach, context, tempBuffer); |
edce4d98 | 1770 | return context; |
038eb4ed | 1771 | } |
1772 | ||
c8be6d7b | 1773 | char * |
1774 | skipLeadingSpace(char *aString) | |
1775 | { | |
1776 | char *result = aString; | |
62e76326 | 1777 | |
c8be6d7b | 1778 | while (xisspace(*aString)) |
62e76326 | 1779 | ++aString; |
1780 | ||
c8be6d7b | 1781 | return result; |
1782 | } | |
1783 | ||
63be0a78 | 1784 | /** |
d4a04ed5 | 1785 | * 'end' defaults to NULL for backwards compatibility |
1786 | * remove default value if we ever get rid of NULL-terminated | |
1787 | * request buffers. | |
1788 | */ | |
1789 | const char * | |
1790 | findTrailingHTTPVersion(const char *uriAndHTTPVersion, const char *end) | |
c8be6d7b | 1791 | { |
d4a04ed5 | 1792 | if (NULL == end) { |
1793 | end = uriAndHTTPVersion + strcspn(uriAndHTTPVersion, "\r\n"); | |
1794 | assert(end); | |
1795 | } | |
62e76326 | 1796 | |
d4a04ed5 | 1797 | for (; end > uriAndHTTPVersion; end--) { |
1798 | if (*end == '\n' || *end == '\r') | |
62e76326 | 1799 | continue; |
1800 | ||
d4a04ed5 | 1801 | if (xisspace(*end)) { |
1802 | if (strncasecmp(end + 1, "HTTP/", 5) == 0) | |
1803 | return end + 1; | |
62e76326 | 1804 | else |
1805 | break; | |
1806 | } | |
c8be6d7b | 1807 | } |
62e76326 | 1808 | |
3f38a55e | 1809 | return NULL; |
c8be6d7b | 1810 | } |
1811 | ||
c8be6d7b | 1812 | void |
59a1efb2 | 1813 | setLogUri(ClientHttpRequest * http, char const *uri) |
c8be6d7b | 1814 | { |
a46d0227 | 1815 | safe_free(http->log_uri); |
62e76326 | 1816 | |
c8be6d7b | 1817 | if (!stringHasCntl(uri)) |
62e76326 | 1818 | http->log_uri = xstrndup(uri, MAX_URL); |
c8be6d7b | 1819 | else |
62e76326 | 1820 | http->log_uri = xstrndup(rfc1738_escape_unescaped(uri), MAX_URL); |
c8be6d7b | 1821 | } |
1822 | ||
3f38a55e | 1823 | static void |
1cf238db | 1824 | prepareAcceleratedURL(ConnStateData * conn, ClientHttpRequest *http, char *url, const char *req_hdr) |
62e76326 | 1825 | { |
3f38a55e | 1826 | int vhost = conn->port->vhost; |
1827 | int vport = conn->port->vport; | |
1828 | char *host; | |
cc192b50 | 1829 | char ntoabuf[MAX_IPSTRLEN]; |
c8be6d7b | 1830 | |
3f38a55e | 1831 | http->flags.accel = 1; |
c8be6d7b | 1832 | |
3f38a55e | 1833 | /* BUG: Squid cannot deal with '*' URLs (RFC2616 5.1.2) */ |
c8be6d7b | 1834 | |
34399323 | 1835 | if (strncasecmp(url, "cache_object://", 15) == 0) |
1836 | return; /* already in good shape */ | |
1837 | ||
3f38a55e | 1838 | if (*url != '/') { |
62e76326 | 1839 | if (conn->port->vhost) |
1840 | return; /* already in good shape */ | |
1841 | ||
1842 | /* else we need to ignore the host name */ | |
1843 | url = strstr(url, "//"); | |
1844 | ||
3f38a55e | 1845 | #if SHOULD_REJECT_UNKNOWN_URLS |
62e76326 | 1846 | |
719c7e0a AJ |
1847 | if (!url) { |
1848 | hp->request_parse_status = HTTP_BAD_REQUEST; | |
62e76326 | 1849 | return parseHttpRequestAbort(conn, "error:invalid-request"); |
719c7e0a | 1850 | } |
c8be6d7b | 1851 | #endif |
62e76326 | 1852 | |
1853 | if (url) | |
1854 | url = strchr(url + 2, '/'); | |
1855 | ||
1856 | if (!url) | |
1857 | url = (char *) "/"; | |
3f38a55e | 1858 | } |
1859 | ||
1860 | if (internalCheck(url)) { | |
62e76326 | 1861 | /* prepend our name & port */ |
1862 | http->uri = xstrdup(internalLocalUri(NULL, url)); | |
ae7ff0b8 | 1863 | return; |
1864 | } | |
1865 | ||
1866 | const bool switchedToHttps = conn->switchedToHttps(); | |
1867 | const bool tryHostHeader = vhost || switchedToHttps; | |
1868 | if (tryHostHeader && (host = mime_get_header(req_hdr, "Host")) != NULL) { | |
62e76326 | 1869 | int url_sz = strlen(url) + 32 + Config.appendDomainLen + |
1870 | strlen(host); | |
1871 | http->uri = (char *)xcalloc(url_sz, 1); | |
ae7ff0b8 | 1872 | const char *protocol = switchedToHttps ? |
9e008dda | 1873 | "https" : conn->port->protocol; |
ae7ff0b8 | 1874 | snprintf(http->uri, url_sz, "%s://%s%s", protocol, host, url); |
bf8fe701 | 1875 | debugs(33, 5, "ACCEL VHOST REWRITE: '" << http->uri << "'"); |
3f38a55e | 1876 | } else if (conn->port->defaultsite) { |
62e76326 | 1877 | int url_sz = strlen(url) + 32 + Config.appendDomainLen + |
1878 | strlen(conn->port->defaultsite); | |
1879 | http->uri = (char *)xcalloc(url_sz, 1); | |
1880 | snprintf(http->uri, url_sz, "%s://%s%s", | |
1881 | conn->port->protocol, conn->port->defaultsite, url); | |
bf8fe701 | 1882 | debugs(33, 5, "ACCEL DEFAULTSITE REWRITE: '" << http->uri <<"'"); |
3f38a55e | 1883 | } else if (vport == -1) { |
62e76326 | 1884 | /* Put the local socket IP address as the hostname. */ |
1885 | int url_sz = strlen(url) + 32 + Config.appendDomainLen; | |
1886 | http->uri = (char *)xcalloc(url_sz, 1); | |
1887 | snprintf(http->uri, url_sz, "%s://%s:%d%s", | |
98242069 | 1888 | http->getConn()->port->protocol, |
cc192b50 | 1889 | http->getConn()->me.NtoA(ntoabuf,MAX_IPSTRLEN), |
1890 | http->getConn()->me.GetPort(), url); | |
bf8fe701 | 1891 | debugs(33, 5, "ACCEL VPORT REWRITE: '" << http->uri << "'"); |
3f38a55e | 1892 | } else if (vport > 0) { |
62e76326 | 1893 | /* Put the local socket IP address as the hostname, but static port */ |
1894 | int url_sz = strlen(url) + 32 + Config.appendDomainLen; | |
1895 | http->uri = (char *)xcalloc(url_sz, 1); | |
1896 | snprintf(http->uri, url_sz, "%s://%s:%d%s", | |
98242069 | 1897 | http->getConn()->port->protocol, |
cc192b50 | 1898 | http->getConn()->me.NtoA(ntoabuf,MAX_IPSTRLEN), |
62e76326 | 1899 | vport, url); |
bf8fe701 | 1900 | debugs(33, 5, "ACCEL VPORT REWRITE: '" << http->uri << "'"); |
3f38a55e | 1901 | } |
1902 | } | |
1903 | ||
1904 | static void | |
1cf238db | 1905 | prepareTransparentURL(ConnStateData * conn, ClientHttpRequest *http, char *url, const char *req_hdr) |
62e76326 | 1906 | { |
3f38a55e | 1907 | char *host; |
cc192b50 | 1908 | char ntoabuf[MAX_IPSTRLEN]; |
3f38a55e | 1909 | |
3f38a55e | 1910 | if (*url != '/') |
62e76326 | 1911 | return; /* already in good shape */ |
3f38a55e | 1912 | |
1913 | /* BUG: Squid cannot deal with '*' URLs (RFC2616 5.1.2) */ | |
1914 | ||
f024c970 | 1915 | if ((host = mime_get_header(req_hdr, "Host")) != NULL) { |
62e76326 | 1916 | int url_sz = strlen(url) + 32 + Config.appendDomainLen + |
1917 | strlen(host); | |
1918 | http->uri = (char *)xcalloc(url_sz, 1); | |
1919 | snprintf(http->uri, url_sz, "%s://%s%s", | |
1920 | conn->port->protocol, host, url); | |
bf8fe701 | 1921 | debugs(33, 5, "TRANSPARENT HOST REWRITE: '" << http->uri <<"'"); |
c8be6d7b | 1922 | } else { |
62e76326 | 1923 | /* Put the local socket IP address as the hostname. */ |
1924 | int url_sz = strlen(url) + 32 + Config.appendDomainLen; | |
1925 | http->uri = (char *)xcalloc(url_sz, 1); | |
1926 | snprintf(http->uri, url_sz, "%s://%s:%d%s", | |
98242069 | 1927 | http->getConn()->port->protocol, |
cc192b50 | 1928 | http->getConn()->me.NtoA(ntoabuf,MAX_IPSTRLEN), |
1929 | http->getConn()->me.GetPort(), url); | |
bf8fe701 | 1930 | debugs(33, 5, "TRANSPARENT REWRITE: '" << http->uri << "'"); |
c8be6d7b | 1931 | } |
c8be6d7b | 1932 | } |
1933 | ||
3ff65596 AR |
1934 | // Temporary hack helper: determine whether the request is chunked, expensive |
1935 | static bool | |
e1381638 AJ |
1936 | isChunkedRequest(const HttpParser *hp) |
1937 | { | |
3ff65596 AR |
1938 | HttpRequest request; |
1939 | if (!request.parseHeader(HttpParserHdrBuf(hp), HttpParserHdrSz(hp))) | |
e1381638 | 1940 | return false; |
3ff65596 AR |
1941 | |
1942 | return request.header.has(HDR_TRANSFER_ENCODING) && | |
e1381638 | 1943 | request.header.hasListMember(HDR_TRANSFER_ENCODING, "chunked", ','); |
3ff65596 AR |
1944 | } |
1945 | ||
1946 | ||
63be0a78 | 1947 | /** |
7a2f978b | 1948 | * parseHttpRequest() |
9e008dda | 1949 | * |
7a2f978b | 1950 | * Returns |
c4b7a5a9 | 1951 | * NULL on incomplete requests |
528b2c61 | 1952 | * a ClientSocketContext structure on success or failure. |
c4b7a5a9 | 1953 | * Sets result->flags.parsed_ok to 0 if failed to parse the request. |
1954 | * Sets result->flags.parsed_ok to 1 if we have a good request. | |
7a2f978b | 1955 | */ |
528b2c61 | 1956 | static ClientSocketContext * |
1cf238db | 1957 | parseHttpRequest(ConnStateData *conn, HttpParser *hp, HttpRequestMethod * method_p, HttpVersion *http_ver) |
7a2f978b | 1958 | { |
7a2f978b | 1959 | char *req_hdr = NULL; |
2334c194 | 1960 | char *end; |
c68e9c6b | 1961 | size_t req_sz; |
59a1efb2 | 1962 | ClientHttpRequest *http; |
528b2c61 | 1963 | ClientSocketContext *result; |
1964 | StoreIOBuffer tempBuffer; | |
84cc2635 | 1965 | int r; |
7a2f978b | 1966 | |
6792f0d3 | 1967 | /* pre-set these values to make aborting simpler */ |
6792f0d3 | 1968 | *method_p = METHOD_NONE; |
6792f0d3 | 1969 | |
7ed7d3da AJ |
1970 | /* NP: don't be tempted to move this down or remove again. |
1971 | * It's the only DDoS protection old-String has against long URL */ | |
1972 | if ( hp->bufsiz <= 0) { | |
1973 | debugs(33, 5, "Incomplete request, waiting for end of request line"); | |
1974 | return NULL; | |
e1381638 | 1975 | } else if ( (size_t)hp->bufsiz >= Config.maxRequestHeaderSize && headersEnd(hp->buf, Config.maxRequestHeaderSize) == 0) { |
7ed7d3da | 1976 | debugs(33, 5, "parseHttpRequest: Too large request"); |
719c7e0a | 1977 | hp->request_parse_status = HTTP_HEADER_TOO_LARGE; |
7ed7d3da AJ |
1978 | return parseHttpRequestAbort(conn, "error:request-too-large"); |
1979 | } | |
1980 | ||
84cc2635 | 1981 | /* Attempt to parse the first line; this'll define the method, url, version and header begin */ |
1982 | r = HttpParserParseReqLine(hp); | |
fc68f6b1 | 1983 | |
84cc2635 | 1984 | if (r == 0) { |
bf8fe701 | 1985 | debugs(33, 5, "Incomplete request, waiting for end of request line"); |
fc68f6b1 | 1986 | return NULL; |
7a2f978b | 1987 | } |
fc68f6b1 | 1988 | |
84cc2635 | 1989 | if (r == -1) { |
1990 | return parseHttpRequestAbort(conn, "error:invalid-request"); | |
1991 | } | |
fc68f6b1 | 1992 | |
84cc2635 | 1993 | /* Request line is valid here .. */ |
1994 | *http_ver = HttpVersion(hp->v_maj, hp->v_min); | |
62e76326 | 1995 | |
52512f28 | 1996 | /* This call scans the entire request, not just the headers */ |
84cc2635 | 1997 | if (hp->v_maj > 0) { |
a5baffba | 1998 | if ((req_sz = headersEnd(hp->buf, hp->bufsiz)) == 0) { |
bf8fe701 | 1999 | debugs(33, 5, "Incomplete request, waiting for end of headers"); |
62e76326 | 2000 | return NULL; |
2001 | } | |
3f38a55e | 2002 | } else { |
bf8fe701 | 2003 | debugs(33, 3, "parseHttpRequest: Missing HTTP identifier"); |
84cc2635 | 2004 | req_sz = HttpParserReqSz(hp); |
3f38a55e | 2005 | } |
2006 | ||
bb790702 | 2007 | /* We know the whole request is in hp->buf now */ |
52512f28 | 2008 | |
a5baffba | 2009 | assert(req_sz <= (size_t) hp->bufsiz); |
fc68f6b1 | 2010 | |
a5baffba | 2011 | /* Will the following be true with HTTP/0.9 requests? probably not .. */ |
2012 | /* So the rest of the code will need to deal with '0'-byte headers (ie, none, so don't try parsing em) */ | |
2013 | assert(req_sz > 0); | |
fc68f6b1 | 2014 | |
a5baffba | 2015 | hp->hdr_end = req_sz - 1; |
fc68f6b1 | 2016 | |
a5baffba | 2017 | hp->hdr_start = hp->req_end + 1; |
3f38a55e | 2018 | |
5b648f60 | 2019 | /* Enforce max_request_size */ |
5b648f60 | 2020 | if (req_sz >= Config.maxRequestHeaderSize) { |
bf8fe701 | 2021 | debugs(33, 5, "parseHttpRequest: Too large request"); |
719c7e0a | 2022 | hp->request_parse_status = HTTP_HEADER_TOO_LARGE; |
5b648f60 | 2023 | return parseHttpRequestAbort(conn, "error:request-too-large"); |
2024 | } | |
2025 | ||
84cc2635 | 2026 | /* Set method_p */ |
60745f24 | 2027 | *method_p = HttpRequestMethod(&hp->buf[hp->m_start], &hp->buf[hp->m_end]+1); |
fc68f6b1 | 2028 | |
adf29627 AJ |
2029 | /* deny CONNECT via accelerated ports */ |
2030 | if (*method_p == METHOD_CONNECT && conn && conn->port && conn->port->accel) { | |
2031 | debugs(33, DBG_IMPORTANT, "WARNING: CONNECT method received on " << conn->port->protocol << " Accelerator port " << conn->port->s.GetPort() ); | |
2032 | /* XXX need a way to say "this many character length string" */ | |
2033 | debugs(33, DBG_IMPORTANT, "WARNING: for request: " << hp->buf); | |
719c7e0a | 2034 | hp->request_parse_status = HTTP_METHOD_NOT_ALLOWED; |
adf29627 AJ |
2035 | return parseHttpRequestAbort(conn, "error:method-not-allowed"); |
2036 | } | |
2037 | ||
84cc2635 | 2038 | if (*method_p == METHOD_NONE) { |
fc68f6b1 | 2039 | /* XXX need a way to say "this many character length string" */ |
bf8fe701 | 2040 | debugs(33, 1, "clientParseRequestMethod: Unsupported method in request '" << hp->buf << "'"); |
719c7e0a | 2041 | hp->request_parse_status = HTTP_METHOD_NOT_ALLOWED; |
84cc2635 | 2042 | return parseHttpRequestAbort(conn, "error:unsupported-request-method"); |
3f38a55e | 2043 | } |
7a2f978b | 2044 | |
c68e9c6b | 2045 | /* |
2046 | * Process headers after request line | |
c8be6d7b | 2047 | * TODO: Use httpRequestParse here. |
c68e9c6b | 2048 | */ |
84cc2635 | 2049 | /* XXX this code should be modified to take a const char * later! */ |
2050 | req_hdr = (char *) hp->buf + hp->req_end + 1; | |
fc68f6b1 | 2051 | |
bf8fe701 | 2052 | debugs(33, 3, "parseHttpRequest: req_hdr = {" << req_hdr << "}"); |
fc68f6b1 | 2053 | |
52512f28 | 2054 | end = (char *) hp->buf + hp->hdr_end; |
fc68f6b1 | 2055 | |
bf8fe701 | 2056 | debugs(33, 3, "parseHttpRequest: end = {" << end << "}"); |
99edd1c3 | 2057 | |
3e83e8b2 AJ |
2058 | /* |
2059 | * Check that the headers don't have double-CR. | |
2060 | * NP: strnstr is required so we don't search any possible binary body blobs. | |
2061 | */ | |
cee08cbc | 2062 | if ( squid_strnstr(req_hdr, "\r\r\n", req_sz) ) { |
bf8fe701 | 2063 | debugs(33, 1, "WARNING: suspicious HTTP request contains double CR"); |
719c7e0a | 2064 | hp->request_parse_status = HTTP_BAD_REQUEST; |
47ac2ebe | 2065 | return parseHttpRequestAbort(conn, "error:double-CR"); |
2066 | } | |
2067 | ||
bf8fe701 | 2068 | debugs(33, 3, "parseHttpRequest: prefix_sz = " << |
2069 | (int) HttpParserRequestLen(hp) << ", req_line_sz = " << | |
2070 | HttpParserReqSz(hp)); | |
62e76326 | 2071 | |
3ff65596 AR |
2072 | // Temporary hack: We might receive a chunked body from a broken HTTP/1.1 |
2073 | // client that sends chunked requests to HTTP/1.0 Squid. If the request | |
2074 | // might have a chunked body, parse the headers early to look for the | |
2075 | // "Transfer-Encoding: chunked" header. If we find it, wait until the | |
2076 | // entire body is available so that we can set the content length and | |
2077 | // forward the request without chunks. The primary reason for this is | |
2078 | // to avoid forwarding a chunked request because the server side lacks | |
2079 | // logic to determine when it is valid to do so. | |
2080 | // FUTURE_CODE_TO_SUPPORT_CHUNKED_REQUESTS below will replace this hack. | |
2081 | if (hp->v_min == 1 && hp->v_maj == 1 && // broken client, may send chunks | |
e1381638 AJ |
2082 | Config.maxChunkedRequestBodySize > 0 && // configured to dechunk |
2083 | (*method_p == METHOD_PUT || *method_p == METHOD_POST)) { | |
3ff65596 AR |
2084 | |
2085 | // check only once per request because isChunkedRequest is expensive | |
2086 | if (conn->in.dechunkingState == ConnStateData::chunkUnknown) { | |
2087 | if (isChunkedRequest(hp)) | |
2088 | conn->startDechunkingRequest(hp); | |
2089 | else | |
2090 | conn->in.dechunkingState = ConnStateData::chunkNone; | |
2091 | } | |
2092 | ||
2093 | if (conn->in.dechunkingState == ConnStateData::chunkParsing) { | |
2094 | if (conn->parseRequestChunks(hp)) // parses newly read chunks | |
2095 | return NULL; // wait for more data | |
2096 | debugs(33, 5, HERE << "Got complete chunked request or err."); | |
2097 | assert(conn->in.dechunkingState != ConnStateData::chunkParsing); | |
2098 | } | |
2099 | } | |
2100 | ||
7a2f978b | 2101 | /* Ok, all headers are received */ |
a0355e95 | 2102 | http = new ClientHttpRequest(conn); |
62e76326 | 2103 | |
a5baffba | 2104 | http->req_sz = HttpParserRequestLen(hp); |
528b2c61 | 2105 | result = ClientSocketContextNew(http); |
c8be6d7b | 2106 | tempBuffer.data = result->reqbuf; |
2107 | tempBuffer.length = HTTP_REQBUF_SZ; | |
62e76326 | 2108 | |
0655fa4d | 2109 | ClientStreamData newServer = new clientReplyContext(http); |
0655fa4d | 2110 | ClientStreamData newClient = result; |
edce4d98 | 2111 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, |
0655fa4d | 2112 | clientReplyStatus, newServer, clientSocketRecipient, |
2113 | clientSocketDetach, newClient, tempBuffer); | |
62e76326 | 2114 | |
bf8fe701 | 2115 | debugs(33, 5, "parseHttpRequest: Request Header is\n" <<(hp->buf) + hp->hdr_start); |
3f38a55e | 2116 | |
3ff65596 AR |
2117 | /* set url */ |
2118 | /* | |
2119 | * XXX this should eventually not use a malloc'ed buffer; the transformation code | |
2120 | * below needs to be modified to not expect a mutable nul-terminated string. | |
2121 | */ | |
2122 | char *url = (char *)xmalloc(hp->u_end - hp->u_start + 16); | |
2123 | ||
2124 | memcpy(url, hp->buf + hp->u_start, hp->u_end - hp->u_start + 1); | |
2125 | ||
2126 | url[hp->u_end - hp->u_start + 1] = '\0'; | |
2127 | ||
ba9ebd0a | 2128 | #if THIS_VIOLATES_HTTP_SPECS_ON_URL_TRANSFORMATION |
62e76326 | 2129 | |
7a2f978b | 2130 | if ((t = strchr(url, '#'))) /* remove HTML anchors */ |
62e76326 | 2131 | *t = '\0'; |
2132 | ||
ba9ebd0a | 2133 | #endif |
7a2f978b | 2134 | |
3f38a55e | 2135 | /* Rewrite the URL in transparent or accelerator mode */ |
89272111 AJ |
2136 | /* NP: there are several cases to traverse here: |
2137 | * - standard mode (forward proxy) | |
2138 | * - transparent mode (TPROXY) | |
2139 | * - transparent mode with failures | |
2140 | * - intercept mode (NAT) | |
2141 | * - intercept mode with failures | |
2142 | * - accelerator mode (reverse proxy) | |
2143 | * - internal URL | |
2144 | * - mixed combos of the above with internal URL | |
2145 | */ | |
a46d2c0e | 2146 | if (conn->transparent()) { |
89272111 | 2147 | /* intercept or transparent mode, properly working with no failures */ |
891de1fe AJ |
2148 | http->flags.intercepted = conn->port->intercepted; |
2149 | http->flags.spoof_client_ip = conn->port->spoof_client_ip; | |
89272111 AJ |
2150 | prepareTransparentURL(conn, http, url, req_hdr); |
2151 | ||
2152 | } else if (conn->port->intercepted || conn->port->spoof_client_ip) { | |
2153 | /* transparent or intercept mode with failures */ | |
62e76326 | 2154 | prepareTransparentURL(conn, http, url, req_hdr); |
89272111 | 2155 | |
ae7ff0b8 | 2156 | } else if (conn->port->accel || conn->switchedToHttps()) { |
89272111 | 2157 | /* accelerator mode */ |
62e76326 | 2158 | prepareAcceleratedURL(conn, http, url, req_hdr); |
89272111 | 2159 | |
2f2749d7 | 2160 | } else if (internalCheck(url)) { |
89272111 | 2161 | /* internal URL mode */ |
2f2749d7 | 2162 | /* prepend our name & port */ |
2163 | http->uri = xstrdup(internalLocalUri(NULL, url)); | |
2f2749d7 | 2164 | http->flags.accel = 1; |
3f38a55e | 2165 | } |
2166 | ||
2167 | if (!http->uri) { | |
62e76326 | 2168 | /* No special rewrites have been applied above, use the |
2169 | * requested url. may be rewritten later, so make extra room */ | |
2170 | int url_sz = strlen(url) + Config.appendDomainLen + 5; | |
2171 | http->uri = (char *)xcalloc(url_sz, 1); | |
2172 | strcpy(http->uri, url); | |
3f38a55e | 2173 | } |
62e76326 | 2174 | |
c8be6d7b | 2175 | setLogUri(http, http->uri); |
bf8fe701 | 2176 | debugs(33, 5, "parseHttpRequest: Complete request received"); |
c4b7a5a9 | 2177 | result->flags.parsed_ok = 1; |
84cc2635 | 2178 | xfree(url); |
c8be6d7b | 2179 | return result; |
7a2f978b | 2180 | } |
2181 | ||
c8be6d7b | 2182 | int |
a46d2c0e | 2183 | ConnStateData::getAvailableBufferLength() const |
c8be6d7b | 2184 | { |
1a419b96 | 2185 | int result = in.allocatedSize - in.notYetUsed - 1; |
2186 | assert (result >= 0); | |
2187 | return result; | |
c8be6d7b | 2188 | } |
2189 | ||
2190 | void | |
a46d2c0e | 2191 | ConnStateData::makeSpaceAvailable() |
c8be6d7b | 2192 | { |
a46d2c0e | 2193 | if (getAvailableBufferLength() < 2) { |
2194 | in.buf = (char *)memReallocBuf(in.buf, in.allocatedSize * 2, &in.allocatedSize); | |
4a7a3d56 | 2195 | debugs(33, 2, "growing request buffer: notYetUsed=" << in.notYetUsed << " size=" << in.allocatedSize); |
c8be6d7b | 2196 | } |
2197 | } | |
2198 | ||
2199 | void | |
0655fa4d | 2200 | ConnStateData::addContextToQueue(ClientSocketContext * context) |
c8be6d7b | 2201 | { |
0655fa4d | 2202 | ClientSocketContext::Pointer *S; |
62e76326 | 2203 | |
0655fa4d | 2204 | for (S = (ClientSocketContext::Pointer *) & currentobject; S->getRaw(); |
3d0ac046 | 2205 | S = &(*S)->next); |
c8be6d7b | 2206 | *S = context; |
62e76326 | 2207 | |
0655fa4d | 2208 | ++nrequests; |
c8be6d7b | 2209 | } |
2210 | ||
2211 | int | |
0655fa4d | 2212 | ConnStateData::getConcurrentRequestCount() const |
c8be6d7b | 2213 | { |
2214 | int result = 0; | |
0655fa4d | 2215 | ClientSocketContext::Pointer *T; |
62e76326 | 2216 | |
0655fa4d | 2217 | for (T = (ClientSocketContext::Pointer *) ¤tobject; |
3d0ac046 | 2218 | T->getRaw(); T = &(*T)->next, ++result); |
c8be6d7b | 2219 | return result; |
2220 | } | |
2221 | ||
2222 | int | |
1cf238db | 2223 | ConnStateData::connReadWasError(comm_err_t flag, int size, int xerrno) |
c8be6d7b | 2224 | { |
c4b7a5a9 | 2225 | if (flag != COMM_OK) { |
1cf238db | 2226 | debugs(33, 2, "connReadWasError: FD " << fd << ": got flag " << flag); |
62e76326 | 2227 | return 1; |
c4b7a5a9 | 2228 | } |
62e76326 | 2229 | |
c8be6d7b | 2230 | if (size < 0) { |
f3400a93 | 2231 | if (!ignoreErrno(xerrno)) { |
1cf238db | 2232 | debugs(33, 2, "connReadWasError: FD " << fd << ": " << xstrerr(xerrno)); |
62e76326 | 2233 | return 1; |
1cf238db | 2234 | } else if (in.notYetUsed == 0) { |
2235 | debugs(33, 2, "connReadWasError: FD " << fd << ": no data to process (" << xstrerr(xerrno) << ")"); | |
62e76326 | 2236 | } |
c8be6d7b | 2237 | } |
62e76326 | 2238 | |
c8be6d7b | 2239 | return 0; |
2240 | } | |
2241 | ||
2242 | int | |
1cf238db | 2243 | ConnStateData::connFinishedWithConn(int size) |
c8be6d7b | 2244 | { |
2245 | if (size == 0) { | |
1cf238db | 2246 | if (getConcurrentRequestCount() == 0 && in.notYetUsed == 0) { |
62e76326 | 2247 | /* no current or pending requests */ |
1cf238db | 2248 | debugs(33, 4, "connFinishedWithConn: FD " << fd << " closed"); |
62e76326 | 2249 | return 1; |
2250 | } else if (!Config.onoff.half_closed_clients) { | |
2251 | /* admin doesn't want to support half-closed client sockets */ | |
1cf238db | 2252 | debugs(33, 3, "connFinishedWithConn: FD " << fd << " aborted (half_closed_clients disabled)"); |
f692498b | 2253 | notifyAllContexts(0); // no specific error implies abort |
62e76326 | 2254 | return 1; |
2255 | } | |
c8be6d7b | 2256 | } |
62e76326 | 2257 | |
c8be6d7b | 2258 | return 0; |
2259 | } | |
2260 | ||
2261 | void | |
3b299123 | 2262 | connNoteUseOfBuffer(ConnStateData* conn, size_t byteCount) |
c8be6d7b | 2263 | { |
2264 | assert(byteCount > 0 && byteCount <= conn->in.notYetUsed); | |
2265 | conn->in.notYetUsed -= byteCount; | |
d5fa7219 | 2266 | debugs(33, 5, HERE << "conn->in.notYetUsed = " << conn->in.notYetUsed); |
c8be6d7b | 2267 | /* |
9e008dda | 2268 | * If there is still data that will be used, |
c8be6d7b | 2269 | * move it to the beginning. |
2270 | */ | |
62e76326 | 2271 | |
c8be6d7b | 2272 | if (conn->in.notYetUsed > 0) |
62e76326 | 2273 | xmemmove(conn->in.buf, conn->in.buf + byteCount, |
2274 | conn->in.notYetUsed); | |
c8be6d7b | 2275 | } |
2276 | ||
2277 | int | |
1cf238db | 2278 | connKeepReadingIncompleteRequest(ConnStateData * conn) |
c8be6d7b | 2279 | { |
3ff65596 AR |
2280 | // when we read chunked requests, the entire body is buffered |
2281 | // XXX: this check ignores header size and its limits. | |
2282 | if (conn->in.dechunkingState == ConnStateData::chunkParsing) | |
821e0b65 | 2283 | return ((int64_t)conn->in.notYetUsed) < Config.maxChunkedRequestBodySize; |
3ff65596 | 2284 | |
c8be6d7b | 2285 | return conn->in.notYetUsed >= Config.maxRequestHeaderSize ? 0 : 1; |
2286 | } | |
2287 | ||
2288 | void | |
1cf238db | 2289 | connCancelIncompleteRequests(ConnStateData * conn) |
c8be6d7b | 2290 | { |
528b2c61 | 2291 | ClientSocketContext *context = parseHttpRequestAbort(conn, "error:request-too-large"); |
2292 | clientStreamNode *node = context->getClientReplyContext(); | |
c8be6d7b | 2293 | assert(!connKeepReadingIncompleteRequest(conn)); |
3ff65596 AR |
2294 | if (conn->in.dechunkingState == ConnStateData::chunkParsing) { |
2295 | debugs(33, 1, "Chunked request is too large (" << conn->in.notYetUsed << " bytes)"); | |
2296 | debugs(33, 1, "Config 'chunked_request_body_max_size'= " << Config.maxChunkedRequestBodySize << " bytes."); | |
2297 | } else { | |
2298 | debugs(33, 1, "Request header is too large (" << conn->in.notYetUsed << " bytes)"); | |
2299 | debugs(33, 1, "Config 'request_header_max_size'= " << Config.maxRequestHeaderSize << " bytes."); | |
2300 | } | |
0655fa4d | 2301 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2302 | assert (repContext); | |
2303 | repContext->setReplyToError(ERR_TOO_BIG, | |
2304 | HTTP_REQUEST_ENTITY_TOO_LARGE, METHOD_NONE, NULL, | |
cc192b50 | 2305 | conn->peer, NULL, NULL, NULL); |
0655fa4d | 2306 | context->registerWithConn(); |
528b2c61 | 2307 | context->pullData(); |
c8be6d7b | 2308 | } |
2309 | ||
1cf238db | 2310 | void |
2311 | ConnStateData::clientMaybeReadData(int do_next_read) | |
7a2f978b | 2312 | { |
c4b7a5a9 | 2313 | if (do_next_read) { |
1cf238db | 2314 | flags.readMoreRequests = true; |
2315 | readSomeData(); | |
c4b7a5a9 | 2316 | } |
2317 | } | |
2318 | ||
1cf238db | 2319 | void |
2320 | ConnStateData::clientAfterReadingRequests(int do_next_read) | |
c4b7a5a9 | 2321 | { |
3b299123 | 2322 | /* |
2323 | * If (1) we are reading a message body, (2) and the connection | |
2324 | * is half-closed, and (3) we didn't get the entire HTTP request | |
2325 | * yet, then close this connection. | |
2326 | */ | |
62e76326 | 2327 | |
3b299123 | 2328 | if (fd_table[fd].flags.socket_eof) { |
1cf238db | 2329 | if ((int64_t)in.notYetUsed < bodySizeLeft()) { |
62e76326 | 2330 | /* Partial request received. Abort client connection! */ |
bf8fe701 | 2331 | debugs(33, 3, "clientAfterReadingRequests: FD " << fd << " aborted, partial request"); |
62e76326 | 2332 | comm_close(fd); |
2333 | return; | |
2334 | } | |
c4b7a5a9 | 2335 | } |
2336 | ||
1cf238db | 2337 | clientMaybeReadData (do_next_read); |
c4b7a5a9 | 2338 | } |
2339 | ||
c4b7a5a9 | 2340 | static void |
1cf238db | 2341 | clientProcessRequest(ConnStateData *conn, HttpParser *hp, ClientSocketContext *context, const HttpRequestMethod& method, HttpVersion http_ver) |
c4b7a5a9 | 2342 | { |
59a1efb2 | 2343 | ClientHttpRequest *http = context->http; |
190154cf | 2344 | HttpRequest *request = NULL; |
5f8252d2 | 2345 | bool notedUseOfBuffer = false; |
3ff65596 AR |
2346 | bool tePresent = false; |
2347 | bool deChunked = false; | |
2348 | bool unsupportedTe = false; | |
5f8252d2 | 2349 | |
c4b7a5a9 | 2350 | /* We have an initial client stream in place should it be needed */ |
2351 | /* setup our private context */ | |
0655fa4d | 2352 | context->registerWithConn(); |
c4b7a5a9 | 2353 | |
2354 | if (context->flags.parsed_ok == 0) { | |
62e76326 | 2355 | clientStreamNode *node = context->getClientReplyContext(); |
bf8fe701 | 2356 | debugs(33, 1, "clientProcessRequest: Invalid Request"); |
0655fa4d | 2357 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2358 | assert (repContext); | |
e212e5e3 | 2359 | switch (hp->request_parse_status) { |
719c7e0a AJ |
2360 | case HTTP_HEADER_TOO_LARGE: |
2361 | repContext->setReplyToError(ERR_TOO_BIG, HTTP_HEADER_TOO_LARGE, method, http->uri, conn->peer, NULL, conn->in.buf, NULL); | |
2362 | break; | |
2363 | case HTTP_METHOD_NOT_ALLOWED: | |
2364 | repContext->setReplyToError(ERR_UNSUP_REQ, HTTP_METHOD_NOT_ALLOWED, method, http->uri, conn->peer, NULL, conn->in.buf, NULL); | |
2365 | break; | |
2366 | default: | |
2367 | repContext->setReplyToError(ERR_INVALID_REQ, HTTP_BAD_REQUEST, method, http->uri, conn->peer, NULL, conn->in.buf, NULL); | |
2368 | } | |
62e76326 | 2369 | assert(context->http->out.offset == 0); |
2370 | context->pullData(); | |
48962ba8 | 2371 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2372 | goto finish; |
c4b7a5a9 | 2373 | } |
2374 | ||
c21ad0f5 | 2375 | if ((request = HttpRequest::CreateFromUrlAndMethod(http->uri, method)) == NULL) { |
62e76326 | 2376 | clientStreamNode *node = context->getClientReplyContext(); |
bf8fe701 | 2377 | debugs(33, 5, "Invalid URL: " << http->uri); |
0655fa4d | 2378 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2379 | assert (repContext); | |
cc192b50 | 2380 | repContext->setReplyToError(ERR_INVALID_URL, HTTP_BAD_REQUEST, method, http->uri, conn->peer, NULL, NULL, NULL); |
62e76326 | 2381 | assert(context->http->out.offset == 0); |
2382 | context->pullData(); | |
48962ba8 | 2383 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2384 | goto finish; |
62e76326 | 2385 | } |
c4b7a5a9 | 2386 | |
e57c1885 AJ |
2387 | /* RFC 2616 section 10.5.6 : handle unsupported HTTP versions cleanly. */ |
2388 | /* We currently only accept 0.9, 1.0, 1.1 */ | |
2389 | if ( (http_ver.major == 0 && http_ver.minor != 9) || | |
af6a12ee AJ |
2390 | (http_ver.major == 1 && http_ver.minor > 1 ) || |
2391 | (http_ver.major > 1) ) { | |
e57c1885 AJ |
2392 | |
2393 | clientStreamNode *node = context->getClientReplyContext(); | |
2394 | debugs(33, 5, "Unsupported HTTP version discovered. :\n" << HttpParserHdrBuf(hp)); | |
2395 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
2396 | assert (repContext); | |
2397 | repContext->setReplyToError(ERR_UNSUP_HTTPVERSION, HTTP_HTTP_VERSION_NOT_SUPPORTED, method, http->uri, conn->peer, NULL, HttpParserHdrBuf(hp), NULL); | |
2398 | assert(context->http->out.offset == 0); | |
2399 | context->pullData(); | |
2400 | conn->flags.readMoreRequests = false; | |
2401 | goto finish; | |
2402 | } | |
2403 | ||
528b2c61 | 2404 | /* compile headers */ |
2405 | /* we should skip request line! */ | |
666f514b | 2406 | /* XXX should actually know the damned buffer size here */ |
38e82382 | 2407 | if (http_ver.major >= 1 && !request->parseHeader(HttpParserHdrBuf(hp), HttpParserHdrSz(hp))) { |
47ac2ebe | 2408 | clientStreamNode *node = context->getClientReplyContext(); |
bf8fe701 | 2409 | debugs(33, 5, "Failed to parse request headers:\n" << HttpParserHdrBuf(hp)); |
47ac2ebe | 2410 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2411 | assert (repContext); | |
38e82382 | 2412 | repContext->setReplyToError(ERR_INVALID_REQ, HTTP_BAD_REQUEST, method, http->uri, conn->peer, NULL, NULL, NULL); |
47ac2ebe | 2413 | assert(context->http->out.offset == 0); |
2414 | context->pullData(); | |
48962ba8 | 2415 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2416 | goto finish; |
47ac2ebe | 2417 | } |
c4b7a5a9 | 2418 | |
2419 | request->flags.accelerated = http->flags.accel; | |
432bc83c | 2420 | request->flags.ignore_cc = conn->port->ignore_cc; |
7f7bdd96 | 2421 | request->flags.no_direct = request->flags.accelerated ? !conn->port->allow_direct : 0; |
2ad20b4f AJ |
2422 | |
2423 | /** \par | |
2424 | * If transparent or interception mode is working clone the transparent and interception flags | |
2425 | * from the port settings to the request. | |
2426 | */ | |
85944c1c | 2427 | if (IpInterceptor.InterceptActive()) { |
2ad20b4f AJ |
2428 | request->flags.intercepted = http->flags.intercepted; |
2429 | } | |
85944c1c | 2430 | if (IpInterceptor.TransparentActive()) { |
f165d2fb | 2431 | request->flags.spoof_client_ip = conn->port->spoof_client_ip; |
2ad20b4f | 2432 | } |
fc68f6b1 | 2433 | |
5b4117d8 | 2434 | if (internalCheck(request->urlpath.termedBuf())) { |
cc192b50 | 2435 | if (internalHostnameIs(request->GetHost()) && |
f024c970 | 2436 | request->port == getMyPort()) { |
2437 | http->flags.internal = 1; | |
9c175897 | 2438 | } else if (Config.onoff.global_internal_static && internalStaticCheck(request->urlpath.termedBuf())) { |
cc192b50 | 2439 | request->SetHost(internalHostname()); |
f024c970 | 2440 | request->port = getMyPort(); |
2441 | http->flags.internal = 1; | |
62e76326 | 2442 | } |
f024c970 | 2443 | } |
e72a0ec0 | 2444 | |
f024c970 | 2445 | if (http->flags.internal) { |
2446 | request->protocol = PROTO_HTTP; | |
2447 | request->login[0] = '\0'; | |
c4b7a5a9 | 2448 | } |
2449 | ||
c4b7a5a9 | 2450 | request->flags.internal = http->flags.internal; |
2451 | setLogUri (http, urlCanonicalClean(request)); | |
cc192b50 | 2452 | request->client_addr = conn->peer; |
a98c2da5 AJ |
2453 | #if USE_SQUID_EUI |
2454 | request->client_eui48 = conn->peer_eui48; | |
2455 | request->client_eui64 = conn->peer_eui64; | |
2456 | #endif | |
3d674977 AJ |
2457 | #if FOLLOW_X_FORWARDED_FOR |
2458 | request->indirect_client_addr = conn->peer; | |
2459 | #endif /* FOLLOW_X_FORWARDED_FOR */ | |
cc192b50 | 2460 | request->my_addr = conn->me; |
8ae66e43 | 2461 | request->http_ver = http_ver; |
62e76326 | 2462 | |
3ff65596 AR |
2463 | tePresent = request->header.has(HDR_TRANSFER_ENCODING); |
2464 | deChunked = conn->in.dechunkingState == ConnStateData::chunkReady; | |
2465 | if (deChunked) { | |
2466 | assert(tePresent); | |
2467 | request->setContentLength(conn->in.dechunked.contentSize()); | |
2468 | request->header.delById(HDR_TRANSFER_ENCODING); | |
2469 | conn->finishDechunkingRequest(hp); | |
2470 | } | |
2471 | ||
2472 | unsupportedTe = tePresent && !deChunked; | |
2473 | if (!urlCheckRequest(request) || unsupportedTe) { | |
62e76326 | 2474 | clientStreamNode *node = context->getClientReplyContext(); |
0655fa4d | 2475 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2476 | assert (repContext); | |
2477 | repContext->setReplyToError(ERR_UNSUP_REQ, | |
2478 | HTTP_NOT_IMPLEMENTED, request->method, NULL, | |
cc192b50 | 2479 | conn->peer, request, NULL, NULL); |
62e76326 | 2480 | assert(context->http->out.offset == 0); |
2481 | context->pullData(); | |
48962ba8 | 2482 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2483 | goto finish; |
c4b7a5a9 | 2484 | } |
2485 | ||
2486 | ||
2487 | if (!clientIsContentLengthValid(request)) { | |
62e76326 | 2488 | clientStreamNode *node = context->getClientReplyContext(); |
0655fa4d | 2489 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2490 | assert (repContext); | |
2491 | repContext->setReplyToError(ERR_INVALID_REQ, | |
2492 | HTTP_LENGTH_REQUIRED, request->method, NULL, | |
cc192b50 | 2493 | conn->peer, request, NULL, NULL); |
62e76326 | 2494 | assert(context->http->out.offset == 0); |
2495 | context->pullData(); | |
48962ba8 | 2496 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2497 | goto finish; |
c4b7a5a9 | 2498 | } |
2499 | ||
52b601ff AJ |
2500 | if (request->header.has(HDR_EXPECT)) { |
2501 | int ignore = 0; | |
47413f0e | 2502 | #if HTTP_VIOLATIONS |
52b601ff AJ |
2503 | if (Config.onoff.ignore_expect_100) { |
2504 | String expect = request->header.getList(HDR_EXPECT); | |
2505 | if (expect.caseCmp("100-continue") == 0) | |
2506 | ignore = 1; | |
2507 | expect.clean(); | |
2508 | } | |
47413f0e | 2509 | #endif |
52b601ff AJ |
2510 | if (!ignore) { |
2511 | clientStreamNode *node = context->getClientReplyContext(); | |
2512 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
2513 | assert (repContext); | |
2514 | repContext->setReplyToError(ERR_INVALID_REQ, HTTP_EXPECTATION_FAILED, request->method, http->uri, conn->peer, request, NULL, NULL); | |
2515 | assert(context->http->out.offset == 0); | |
2516 | context->pullData(); | |
2517 | goto finish; | |
2518 | } | |
2519 | } | |
2520 | ||
6dd9f4bd | 2521 | http->request = HTTPMSGLOCK(request); |
c4b7a5a9 | 2522 | clientSetKeepaliveFlag(http); |
62e76326 | 2523 | |
b66e0e86 | 2524 | /* If this is a CONNECT, don't schedule a read - ssl.c will handle it */ |
2525 | if (http->request->method == METHOD_CONNECT) | |
2526 | context->mayUseConnection(true); | |
fc68f6b1 | 2527 | |
b66e0e86 | 2528 | /* Do we expect a request-body? */ |
2529 | if (!context->mayUseConnection() && request->content_length > 0) { | |
5f8252d2 | 2530 | request->body_pipe = conn->expectRequestBody(request->content_length); |
2531 | ||
2532 | // consume header early so that body pipe gets just the body | |
1cf238db | 2533 | connNoteUseOfBuffer(conn, http->req_sz); |
5f8252d2 | 2534 | notedUseOfBuffer = true; |
2535 | ||
10b06767 | 2536 | conn->handleRequestBodyData(); // may comm_close and stop producing |
3b299123 | 2537 | |
62e76326 | 2538 | /* Is it too large? */ |
2539 | ||
2540 | if (!clientIsRequestBodyValid(request->content_length) || | |
2541 | clientIsRequestBodyTooLargeForPolicy(request->content_length)) { | |
2542 | clientStreamNode *node = context->getClientReplyContext(); | |
0655fa4d | 2543 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2544 | assert (repContext); | |
2545 | repContext->setReplyToError(ERR_TOO_BIG, | |
2546 | HTTP_REQUEST_ENTITY_TOO_LARGE, METHOD_NONE, NULL, | |
cc192b50 | 2547 | conn->peer, http->request, NULL, NULL); |
62e76326 | 2548 | assert(context->http->out.offset == 0); |
2549 | context->pullData(); | |
5f8252d2 | 2550 | goto finish; |
62e76326 | 2551 | } |
2552 | ||
10b06767 AJ |
2553 | if (!request->body_pipe->productionEnded()) |
2554 | conn->readSomeData(); | |
2555 | ||
2556 | context->mayUseConnection(!request->body_pipe->productionEnded()); | |
c4b7a5a9 | 2557 | } |
2558 | ||
de31d06f | 2559 | http->calloutContext = new ClientRequestContext(http); |
2560 | ||
2561 | http->doCallouts(); | |
9e008dda | 2562 | |
4c29340e | 2563 | finish: |
5f8252d2 | 2564 | if (!notedUseOfBuffer) |
1cf238db | 2565 | connNoteUseOfBuffer(conn, http->req_sz); |
52c2c8a8 | 2566 | |
2567 | /* | |
2568 | * DPW 2007-05-18 | |
2569 | * Moved the TCP_RESET feature from clientReplyContext::sendMoreData | |
2570 | * to here because calling comm_reset_close() causes http to | |
2571 | * be freed and the above connNoteUseOfBuffer() would hit an | |
2572 | * assertion, not to mention that we were accessing freed memory. | |
2573 | */ | |
2574 | if (http->request->flags.resetTCP() && conn->fd > -1) { | |
9e008dda AJ |
2575 | debugs(33, 3, HERE << "Sending TCP RST on FD " << conn->fd); |
2576 | conn->flags.readMoreRequests = false; | |
2577 | comm_reset_close(conn->fd); | |
2578 | return; | |
52c2c8a8 | 2579 | } |
c4b7a5a9 | 2580 | } |
2581 | ||
2582 | static void | |
1cf238db | 2583 | connStripBufferWhitespace (ConnStateData * conn) |
c4b7a5a9 | 2584 | { |
2585 | while (conn->in.notYetUsed > 0 && xisspace(conn->in.buf[0])) { | |
62e76326 | 2586 | xmemmove(conn->in.buf, conn->in.buf + 1, conn->in.notYetUsed - 1); |
2587 | --conn->in.notYetUsed; | |
c4b7a5a9 | 2588 | } |
2589 | } | |
2590 | ||
2591 | static int | |
1cf238db | 2592 | connOkToAddRequest(ConnStateData * conn) |
c4b7a5a9 | 2593 | { |
0655fa4d | 2594 | int result = conn->getConcurrentRequestCount() < (Config.onoff.pipeline_prefetch ? 2 : 1); |
62e76326 | 2595 | |
c4b7a5a9 | 2596 | if (!result) { |
bf8fe701 | 2597 | debugs(33, 3, "connOkToAddRequest: FD " << conn->fd << |
2598 | " max concurrent requests reached"); | |
2599 | debugs(33, 5, "connOkToAddRequest: FD " << conn->fd << | |
2600 | " defering new request until one is done"); | |
c4b7a5a9 | 2601 | } |
62e76326 | 2602 | |
c4b7a5a9 | 2603 | return result; |
2604 | } | |
2605 | ||
63be0a78 | 2606 | /** |
3b299123 | 2607 | * bodySizeLeft |
2608 | * | |
2609 | * Report on the number of bytes of body content that we | |
2610 | * know are yet to be read on this connection. | |
2611 | */ | |
3e62bd58 | 2612 | int64_t |
3b299123 | 2613 | ConnStateData::bodySizeLeft() |
2614 | { | |
5f8252d2 | 2615 | // XXX: this logic will not work for chunked requests with unknown sizes |
fc68f6b1 | 2616 | |
5f8252d2 | 2617 | if (bodyPipe != NULL) |
2618 | return bodyPipe->unproducedSize(); | |
3b299123 | 2619 | |
2620 | return 0; | |
2621 | } | |
2622 | ||
63be0a78 | 2623 | /** |
f900210a | 2624 | * Attempt to parse one or more requests from the input buffer. |
2625 | * If a request is successfully parsed, even if the next request | |
2626 | * is only partially parsed, it will return TRUE. | |
2627 | * do_next_read is updated to indicate whether a read should be | |
2628 | * scheduled. | |
2629 | */ | |
2630 | static bool | |
1cf238db | 2631 | clientParseRequest(ConnStateData * conn, bool &do_next_read) |
f900210a | 2632 | { |
60745f24 | 2633 | HttpRequestMethod method; |
f900210a | 2634 | ClientSocketContext *context; |
2635 | bool parsed_req = false; | |
8ae66e43 | 2636 | HttpVersion http_ver; |
a5baffba | 2637 | HttpParser hp; |
f900210a | 2638 | |
bf8fe701 | 2639 | debugs(33, 5, "clientParseRequest: FD " << conn->fd << ": attempting to parse"); |
f900210a | 2640 | |
3b299123 | 2641 | while (conn->in.notYetUsed > 0 && conn->bodySizeLeft() == 0) { |
f900210a | 2642 | connStripBufferWhitespace (conn); |
2643 | ||
fc68f6b1 | 2644 | /* Don't try to parse if the buffer is empty */ |
2645 | ||
2646 | if (conn->in.notYetUsed == 0) | |
2647 | break; | |
4681057e | 2648 | |
f900210a | 2649 | /* Limit the number of concurrent requests to 2 */ |
2650 | ||
2651 | if (!connOkToAddRequest(conn)) { | |
2652 | break; | |
2653 | } | |
2654 | ||
2655 | /* Should not be needed anymore */ | |
2656 | /* Terminate the string */ | |
2657 | conn->in.buf[conn->in.notYetUsed] = '\0'; | |
2658 | ||
fc68f6b1 | 2659 | /* Begin the parsing */ |
2660 | HttpParserInit(&hp, conn->in.buf, conn->in.notYetUsed); | |
a5baffba | 2661 | |
f900210a | 2662 | /* Process request */ |
fc68f6b1 | 2663 | PROF_start(parseHttpRequest); |
2664 | ||
a5baffba | 2665 | context = parseHttpRequest(conn, &hp, &method, &http_ver); |
fc68f6b1 | 2666 | |
2667 | PROF_stop(parseHttpRequest); | |
f900210a | 2668 | |
2669 | /* partial or incomplete request */ | |
2670 | if (!context) { | |
f900210a | 2671 | |
2672 | if (!connKeepReadingIncompleteRequest(conn)) | |
2673 | connCancelIncompleteRequests(conn); | |
2674 | ||
2675 | break; | |
2676 | } | |
2677 | ||
2678 | /* status -1 or 1 */ | |
2679 | if (context) { | |
bf8fe701 | 2680 | debugs(33, 5, "clientParseRequest: FD " << conn->fd << ": parsed a request"); |
f900210a | 2681 | commSetTimeout(conn->fd, Config.Timeout.lifetime, clientLifetimeTimeout, |
2682 | context->http); | |
2683 | ||
a5baffba | 2684 | clientProcessRequest(conn, &hp, context, method, http_ver); |
f900210a | 2685 | |
f900210a | 2686 | parsed_req = true; |
2687 | ||
2688 | if (context->mayUseConnection()) { | |
bf8fe701 | 2689 | debugs(33, 3, "clientParseRequest: Not reading, as this request may need the connection"); |
f900210a | 2690 | do_next_read = 0; |
2691 | break; | |
2692 | } | |
2693 | ||
2694 | if (!conn->flags.readMoreRequests) { | |
48962ba8 | 2695 | conn->flags.readMoreRequests = true; |
f900210a | 2696 | break; |
2697 | } | |
2698 | ||
3b299123 | 2699 | continue; /* while offset > 0 && conn->bodySizeLeft() == 0 */ |
f900210a | 2700 | } |
3b299123 | 2701 | } /* while offset > 0 && conn->bodySizeLeft() == 0 */ |
fc68f6b1 | 2702 | |
a5baffba | 2703 | /* XXX where to 'finish' the parsing pass? */ |
f900210a | 2704 | |
2705 | return parsed_req; | |
2706 | } | |
2707 | ||
1cf238db | 2708 | void |
2709 | ConnStateData::clientReadRequest(const CommIoCbParams &io) | |
c4b7a5a9 | 2710 | { |
1cf238db | 2711 | debugs(33,5,HERE << "clientReadRequest FD " << io.fd << " size " << io.size); |
2712 | reading(false); | |
a46d2c0e | 2713 | bool do_next_read = 1; /* the default _is_ to read data! - adrian */ |
c4b7a5a9 | 2714 | |
1cf238db | 2715 | assert (io.fd == fd); |
c4b7a5a9 | 2716 | |
2717 | /* Bail out quickly on COMM_ERR_CLOSING - close handlers will tidy up */ | |
62e76326 | 2718 | |
1cf238db | 2719 | if (io.flag == COMM_ERR_CLOSING) { |
cc192b50 | 2720 | debugs(33,5, HERE << " FD " << fd << " closing Bailout."); |
c4b7a5a9 | 2721 | return; |
2722 | } | |
62e76326 | 2723 | |
44db45e8 | 2724 | /* |
2725 | * Don't reset the timeout value here. The timeout value will be | |
2726 | * set to Config.Timeout.request by httpAccept() and | |
2727 | * clientWriteComplete(), and should apply to the request as a | |
2728 | * whole, not individual read() calls. Plus, it breaks our | |
2729 | * lame half-close detection | |
2730 | */ | |
1cf238db | 2731 | if (connReadWasError(io.flag, io.size, io.xerrno)) { |
f692498b | 2732 | notifyAllContexts(io.xerrno); |
62e76326 | 2733 | comm_close(fd); |
2734 | return; | |
7a2f978b | 2735 | } |
c4b7a5a9 | 2736 | |
1cf238db | 2737 | if (io.flag == COMM_OK) { |
2738 | if (io.size > 0) { | |
2739 | kb_incr(&statCounter.client_http.kbytes_in, io.size); | |
3b299123 | 2740 | |
1cf238db | 2741 | handleReadData(io.buf, io.size); |
95ac44e6 | 2742 | |
9e008dda AJ |
2743 | /* The above may close the connection under our feets */ |
2744 | if (!isOpen()) | |
2745 | return; | |
a31a78fb | 2746 | |
1cf238db | 2747 | } else if (io.size == 0) { |
bf8fe701 | 2748 | debugs(33, 5, "clientReadRequest: FD " << fd << " closed?"); |
62e76326 | 2749 | |
1cf238db | 2750 | if (connFinishedWithConn(io.size)) { |
62e76326 | 2751 | comm_close(fd); |
2752 | return; | |
2753 | } | |
2754 | ||
2755 | /* It might be half-closed, we can't tell */ | |
2756 | fd_table[fd].flags.socket_eof = 1; | |
2757 | ||
a46d2c0e | 2758 | commMarkHalfClosed(fd); |
2759 | ||
2760 | do_next_read = 0; | |
62e76326 | 2761 | |
2762 | fd_note(fd, "half-closed"); | |
2763 | ||
2764 | /* There is one more close check at the end, to detect aborted | |
2765 | * (partial) requests. At this point we can't tell if the request | |
2766 | * is partial. | |
2767 | */ | |
2768 | /* Continue to process previously read data */ | |
2769 | } | |
c4b7a5a9 | 2770 | } |
2771 | ||
94439e4e | 2772 | /* Process next request */ |
1cf238db | 2773 | if (getConcurrentRequestCount() == 0) |
2774 | fd_note(fd, "Reading next request"); | |
c8be6d7b | 2775 | |
1cf238db | 2776 | if (! clientParseRequest(this, do_next_read)) { |
9e008dda AJ |
2777 | if (!isOpen()) |
2778 | return; | |
f900210a | 2779 | /* |
2780 | * If the client here is half closed and we failed | |
2781 | * to parse a request, close the connection. | |
2782 | * The above check with connFinishedWithConn() only | |
2783 | * succeeds _if_ the buffer is empty which it won't | |
2784 | * be if we have an incomplete request. | |
6e1d409c | 2785 | * XXX: This duplicates ClientSocketContext::keepaliveNextRequest |
f900210a | 2786 | */ |
1cf238db | 2787 | if (getConcurrentRequestCount() == 0 && commIsHalfClosed(fd)) { |
bf8fe701 | 2788 | debugs(33, 5, "clientReadRequest: FD " << fd << ": half-closed connection, no completed request parsed, connection closing."); |
f900210a | 2789 | comm_close(fd); |
ee6f0213 | 2790 | return; |
62e76326 | 2791 | } |
f900210a | 2792 | } |
ee6f0213 | 2793 | |
1cf238db | 2794 | if (!isOpen()) |
2e216b1d | 2795 | return; |
2796 | ||
1cf238db | 2797 | clientAfterReadingRequests(do_next_read); |
94439e4e | 2798 | } |
2799 | ||
63be0a78 | 2800 | /** |
2801 | * called when new request data has been read from the socket | |
2802 | */ | |
5f8252d2 | 2803 | void |
2804 | ConnStateData::handleReadData(char *buf, size_t size) | |
94439e4e | 2805 | { |
5f8252d2 | 2806 | char *current_buf = in.addressToReadInto(); |
62e76326 | 2807 | |
5f8252d2 | 2808 | if (buf != current_buf) |
2809 | xmemmove(current_buf, buf, size); | |
3b299123 | 2810 | |
5f8252d2 | 2811 | in.notYetUsed += size; |
fc68f6b1 | 2812 | |
5f8252d2 | 2813 | in.buf[in.notYetUsed] = '\0'; /* Terminate the string */ |
3b299123 | 2814 | |
5f8252d2 | 2815 | // if we are reading a body, stuff data into the body pipe |
2816 | if (bodyPipe != NULL) | |
2817 | handleRequestBodyData(); | |
94439e4e | 2818 | } |
2819 | ||
63be0a78 | 2820 | /** |
bb790702 | 2821 | * called when new request body data has been buffered in in.buf |
63be0a78 | 2822 | * may close the connection if we were closing and piped everything out |
2823 | */ | |
5f8252d2 | 2824 | void |
2825 | ConnStateData::handleRequestBodyData() | |
94439e4e | 2826 | { |
5f8252d2 | 2827 | assert(bodyPipe != NULL); |
2828 | ||
e1381638 | 2829 | size_t putSize = 0; |
3ff65596 AR |
2830 | |
2831 | #if FUTURE_CODE_TO_SUPPORT_CHUNKED_REQUESTS | |
e1381638 AJ |
2832 | // The code below works, in principle, but we cannot do dechunking |
2833 | // on-the-fly because that would mean sending chunked requests to | |
2834 | // the next hop. Squid lacks logic to determine which servers can | |
2835 | // receive chunk requests. Squid v3.0 code cannot even handle chunked | |
2836 | // responses which we may encourage by sending chunked requests. | |
2837 | // The error generation code probably needs more work. | |
3ff65596 AR |
2838 | if (in.bodyParser) { // chunked body |
2839 | debugs(33,5, HERE << "handling chunked request body for FD " << fd); | |
2840 | bool malformedChunks = false; | |
2841 | ||
2842 | MemBuf raw; // ChunkedCodingParser only works with MemBufs | |
2843 | raw.init(in.notYetUsed, in.notYetUsed); | |
2844 | raw.append(in.buf, in.notYetUsed); | |
2845 | try { // the parser will throw on errors | |
2846 | const mb_size_t wasContentSize = raw.contentSize(); | |
2847 | BodyPipeCheckout bpc(*bodyPipe); | |
2848 | const bool parsed = in.bodyParser->parse(&raw, &bpc.buf); | |
2849 | bpc.checkIn(); | |
2850 | putSize = wasContentSize - raw.contentSize(); | |
2851 | ||
2852 | if (parsed) { | |
2853 | stopProducingFor(bodyPipe, true); // this makes bodySize known | |
2854 | } else { | |
2855 | // parser needy state must imply body pipe needy state | |
2856 | if (in.bodyParser->needsMoreData() && | |
e1381638 | 2857 | !bodyPipe->mayNeedMoreData()) |
3ff65596 AR |
2858 | malformedChunks = true; |
2859 | // XXX: if bodyParser->needsMoreSpace, how can we guarantee it? | |
2860 | } | |
2861 | } catch (...) { // XXX: be more specific | |
2862 | malformedChunks = true; | |
2863 | } | |
5f8252d2 | 2864 | |
3ff65596 AR |
2865 | if (malformedChunks) { |
2866 | if (bodyPipe != NULL) | |
2867 | stopProducingFor(bodyPipe, false); | |
2868 | ||
2869 | ClientSocketContext::Pointer context = getCurrentContext(); | |
2870 | if (!context->http->out.offset) { | |
2871 | clientStreamNode *node = context->getClientReplyContext(); | |
2872 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
2873 | assert (repContext); | |
2874 | repContext->setReplyToError(ERR_INVALID_REQ, HTTP_BAD_REQUEST, | |
e1381638 AJ |
2875 | METHOD_NONE, NULL, &peer.sin_addr, |
2876 | NULL, NULL, NULL); | |
3ff65596 AR |
2877 | context->pullData(); |
2878 | } | |
2879 | flags.readMoreRequests = false; | |
2880 | return; // XXX: is that sufficient to generate an error? | |
2881 | } | |
e1381638 | 2882 | } else // identity encoding |
3ff65596 AR |
2883 | #endif |
2884 | { | |
2885 | debugs(33,5, HERE << "handling plain request body for FD " << fd); | |
2886 | putSize = bodyPipe->putMoreData(in.buf, in.notYetUsed); | |
2887 | if (!bodyPipe->mayNeedMoreData()) { | |
2888 | // BodyPipe will clear us automagically when we produced everything | |
2889 | bodyPipe = NULL; | |
2890 | } | |
2891 | } | |
2892 | ||
2893 | if (putSize > 0) | |
2894 | connNoteUseOfBuffer(this, putSize); | |
5f8252d2 | 2895 | |
3ff65596 | 2896 | if (!bodyPipe) { |
5f8252d2 | 2897 | debugs(33,5, HERE << "produced entire request body for FD " << fd); |
62e76326 | 2898 | |
5f8252d2 | 2899 | if (closing()) { |
2900 | /* we've finished reading like good clients, | |
2901 | * now do the close that initiateClose initiated. | |
2902 | * | |
2903 | * XXX: do we have to close? why not check keepalive et. | |
2904 | * | |
2905 | * XXX: To support chunked requests safely, we need to handle | |
2906 | * the case of an endless request. This if-statement does not, | |
2907 | * because mayNeedMoreData is true if request size is not known. | |
2908 | */ | |
2909 | comm_close(fd); | |
2910 | } | |
94439e4e | 2911 | } |
5f8252d2 | 2912 | } |
55e44db9 | 2913 | |
5f8252d2 | 2914 | void |
1cf238db | 2915 | ConnStateData::noteMoreBodySpaceAvailable(BodyPipe::Pointer ) |
5f8252d2 | 2916 | { |
2917 | handleRequestBodyData(); | |
2918 | } | |
2919 | ||
2920 | void | |
1cf238db | 2921 | ConnStateData::noteBodyConsumerAborted(BodyPipe::Pointer ) |
5f8252d2 | 2922 | { |
2923 | if (!closing()) | |
2924 | startClosing("body consumer aborted"); | |
94439e4e | 2925 | } |
2926 | ||
63be0a78 | 2927 | /** general lifetime handler for HTTP requests */ |
1cf238db | 2928 | void |
2929 | ConnStateData::requestTimeout(const CommTimeoutCbParams &io) | |
7a2f978b | 2930 | { |
ad63ceea | 2931 | #if THIS_CONFUSES_PERSISTENT_CONNECTION_AWARE_BROWSERS_AND_USERS |
1cf238db | 2932 | debugs(33, 3, "requestTimeout: FD " << io.fd << ": lifetime is expired."); |
62e76326 | 2933 | |
1cf238db | 2934 | if (COMMIO_FD_WRITECB(io.fd)->active) { |
dec5db5d | 2935 | /* FIXME: If this code is reinstated, check the conn counters, |
2936 | * not the fd table state | |
2937 | */ | |
62e76326 | 2938 | /* |
2939 | * Some data has been sent to the client, just close the FD | |
2940 | */ | |
1cf238db | 2941 | comm_close(io.fd); |
2942 | } else if (nrequests) { | |
62e76326 | 2943 | /* |
2944 | * assume its a persistent connection; just close it | |
2945 | */ | |
1cf238db | 2946 | comm_close(io.fd); |
7a2f978b | 2947 | } else { |
62e76326 | 2948 | /* |
2949 | * Generate an error | |
2950 | */ | |
59a1efb2 | 2951 | ClientHttpRequest **H; |
62e76326 | 2952 | clientStreamNode *node; |
719c7e0a | 2953 | ClientHttpRequest *http = parseHttpRequestAbort(this, "error:Connection%20lifetime%20expired"); |
62e76326 | 2954 | node = http->client_stream.tail->prev->data; |
0655fa4d | 2955 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2956 | assert (repContext); | |
2957 | repContext->setReplyToError(ERR_LIFETIME_EXP, | |
1cf238db | 2958 | HTTP_REQUEST_TIMEOUT, METHOD_NONE, "N/A", &peer.sin_addr, |
0655fa4d | 2959 | NULL, NULL, NULL); |
62e76326 | 2960 | /* No requests can be outstanded */ |
1cf238db | 2961 | assert(chr == NULL); |
62e76326 | 2962 | /* add to the client request queue */ |
2963 | ||
3d0ac046 | 2964 | for (H = &chr; *H; H = &(*H)->next); |
62e76326 | 2965 | *H = http; |
2966 | ||
2967 | clientStreamRead(http->client_stream.tail->data, http, 0, | |
2968 | HTTP_REQBUF_SZ, context->reqbuf); | |
2969 | ||
2970 | /* | |
2971 | * if we don't close() here, we still need a timeout handler! | |
2972 | */ | |
9e008dda AJ |
2973 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; |
2974 | AsyncCall::Pointer timeoutCall = asyncCall(33, 5, "ConnStateData::requestTimeout", | |
2975 | TimeoutDialer(this,&ConnStateData::requestTimeout)); | |
2976 | commSetTimeout(io.fd, 30, timeoutCall); | |
62e76326 | 2977 | |
2978 | /* | |
2979 | * Aha, but we don't want a read handler! | |
2980 | */ | |
1cf238db | 2981 | commSetSelect(io.fd, COMM_SELECT_READ, NULL, NULL, 0); |
7a2f978b | 2982 | } |
62e76326 | 2983 | |
af57a2e3 | 2984 | #else |
2985 | /* | |
62e76326 | 2986 | * Just close the connection to not confuse browsers |
2987 | * using persistent connections. Some browsers opens | |
2988 | * an connection and then does not use it until much | |
2989 | * later (presumeably because the request triggering | |
2990 | * the open has already been completed on another | |
2991 | * connection) | |
2992 | */ | |
1cf238db | 2993 | debugs(33, 3, "requestTimeout: FD " << io.fd << ": lifetime is expired."); |
62e76326 | 2994 | |
1cf238db | 2995 | comm_close(io.fd); |
62e76326 | 2996 | |
af57a2e3 | 2997 | #endif |
7a2f978b | 2998 | } |
2999 | ||
b5c39993 | 3000 | static void |
3001 | clientLifetimeTimeout(int fd, void *data) | |
3002 | { | |
59a1efb2 | 3003 | ClientHttpRequest *http = (ClientHttpRequest *)data; |
f692498b | 3004 | debugs(33, 1, "WARNING: Closing client " << " connection due to lifetime timeout"); |
bf8fe701 | 3005 | debugs(33, 1, "\t" << http->uri); |
f692498b | 3006 | http->al.http.timedout = true; |
b5c39993 | 3007 | comm_close(fd); |
3008 | } | |
3009 | ||
c8be6d7b | 3010 | ConnStateData * |
23f6a720 | 3011 | connStateCreate(const IpAddress &peer, const IpAddress &me, int fd, http_port_list *port) |
c8be6d7b | 3012 | { |
a46d2c0e | 3013 | ConnStateData *result = new ConnStateData; |
2ad20b4f | 3014 | |
cc192b50 | 3015 | result->peer = peer; |
3016 | result->log_addr = peer; | |
3017 | result->log_addr.ApplyMask(Config.Addrs.client_netmask.GetCIDR()); | |
3018 | result->me = me; | |
c8be6d7b | 3019 | result->fd = fd; |
e6ccf245 | 3020 | result->in.buf = (char *)memAllocBuf(CLIENT_REQ_BUF_SZ, &result->in.allocatedSize); |
3f38a55e | 3021 | result->port = cbdataReference(port); |
62e76326 | 3022 | |
9e008dda | 3023 | if (port->intercepted || port->spoof_client_ip) { |
ad61a2b4 | 3024 | IpAddress client, dst; |
62e76326 | 3025 | |
85944c1c | 3026 | if (IpInterceptor.NatLookup(fd, me, peer, client, dst) == 0) { |
482a5c64 AJ |
3027 | result->me = client; |
3028 | result->peer = dst; | |
a46d2c0e | 3029 | result->transparent(true); |
62e76326 | 3030 | } |
3f38a55e | 3031 | } |
62e76326 | 3032 | |
5529ca8a | 3033 | if (port->disable_pmtu_discovery != DISABLE_PMTU_OFF && |
9e008dda | 3034 | (result->transparent() || port->disable_pmtu_discovery == DISABLE_PMTU_ALWAYS)) { |
5529ca8a | 3035 | #if defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DONT) |
3036 | int i = IP_PMTUDISC_DONT; | |
3037 | setsockopt(fd, SOL_IP, IP_MTU_DISCOVER, &i, sizeof i); | |
3038 | ||
3039 | #else | |
3040 | ||
3041 | static int reported = 0; | |
3042 | ||
3043 | if (!reported) { | |
bf8fe701 | 3044 | debugs(33, 1, "Notice: httpd_accel_no_pmtu_disc not supported on your platform"); |
5529ca8a | 3045 | reported = 1; |
3046 | } | |
3047 | ||
3048 | #endif | |
3049 | ||
3050 | } | |
3051 | ||
48962ba8 | 3052 | result->flags.readMoreRequests = true; |
c8be6d7b | 3053 | return result; |
3054 | } | |
3055 | ||
63be0a78 | 3056 | /** Handle a new connection on HTTP socket. */ |
7a2f978b | 3057 | void |
ee0989f2 | 3058 | httpAccept(int sock, int newfd, ConnectionDetail *details, |
62e76326 | 3059 | comm_err_t flag, int xerrno, void *data) |
7a2f978b | 3060 | { |
3f38a55e | 3061 | http_port_list *s = (http_port_list *)data; |
7a2f978b | 3062 | ConnStateData *connState = NULL; |
02d1422b | 3063 | |
62e76326 | 3064 | if (flag != COMM_OK) { |
bf8fe701 | 3065 | debugs(33, 1, "httpAccept: FD " << sock << ": accept failure: " << xstrerr(xerrno)); |
62e76326 | 3066 | return; |
3067 | } | |
3068 | ||
bf8fe701 | 3069 | debugs(33, 4, "httpAccept: FD " << newfd << ": accepted"); |
62e76326 | 3070 | fd_note(newfd, "client http connect"); |
1cf238db | 3071 | connState = connStateCreate(&details->peer, &details->me, newfd, s); |
3072 | ||
3073 | typedef CommCbMemFunT<ConnStateData, CommCloseCbParams> Dialer; | |
3074 | AsyncCall::Pointer call = asyncCall(33, 5, "ConnStateData::connStateClosed", | |
9e008dda | 3075 | Dialer(connState, &ConnStateData::connStateClosed)); |
1cf238db | 3076 | comm_add_close_handler(newfd, call); |
62e76326 | 3077 | |
3078 | if (Config.onoff.log_fqdn) | |
cc192b50 | 3079 | fqdncache_gethostbyaddr(details->peer, FQDN_LOOKUP_IF_MISS); |
62e76326 | 3080 | |
9e008dda AJ |
3081 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; |
3082 | AsyncCall::Pointer timeoutCall = asyncCall(33, 5, "ConnStateData::requestTimeout", | |
3083 | TimeoutDialer(connState,&ConnStateData::requestTimeout)); | |
3084 | commSetTimeout(newfd, Config.Timeout.read, timeoutCall); | |
62e76326 | 3085 | |
3898f57f | 3086 | #if USE_IDENT |
4daaf3cb AJ |
3087 | if (Ident::TheConfig.identLookup) { |
3088 | ACLFilledChecklist identChecklist(Ident::TheConfig.identLookup, NULL, NULL); | |
b50e327b AJ |
3089 | identChecklist.src_addr = details->peer; |
3090 | identChecklist.my_addr = details->me; | |
b50e327b | 3091 | if (identChecklist.fastCheck()) |
4daaf3cb | 3092 | Ident::Start(details->me, details->peer, clientIdentDone, connState); |
b50e327b | 3093 | } |
3898f57f | 3094 | #endif |
62e76326 | 3095 | |
a98c2da5 AJ |
3096 | #if USE_SQUID_EUI |
3097 | if (Eui::TheConfig.euiLookup) { | |
3098 | if (details->peer.IsIPv4()) { | |
3099 | connState->peer_eui48.lookup(details->peer); | |
05320519 | 3100 | } else if (details->peer.IsIPv6()) { |
a98c2da5 AJ |
3101 | connState->peer_eui64.lookup(details->peer); |
3102 | } | |
3103 | } | |
3104 | #endif | |
3105 | ||
b2130d58 | 3106 | if (s->tcp_keepalive.enabled) { |
9e008dda | 3107 | commSetTcpKeepalive(newfd, s->tcp_keepalive.idle, s->tcp_keepalive.interval, s->tcp_keepalive.timeout); |
b2130d58 | 3108 | } |
3109 | ||
a46d2c0e | 3110 | connState->readSomeData(); |
62e76326 | 3111 | |
cc192b50 | 3112 | clientdbEstablished(details->peer, 1); |
62e76326 | 3113 | |
3114 | incoming_sockets_accepted++; | |
7a2f978b | 3115 | } |
3116 | ||
1f7c9178 | 3117 | #if USE_SSL |
3118 | ||
63be0a78 | 3119 | /** Create SSL connection structure and update fd_table */ |
ae7ff0b8 | 3120 | static SSL * |
3121 | httpsCreate(int newfd, ConnectionDetail *details, SSL_CTX *sslContext) | |
3122 | { | |
3123 | SSL *ssl = SSL_new(sslContext); | |
3124 | ||
3125 | if (!ssl) { | |
3126 | const int ssl_error = ERR_get_error(); | |
3127 | debugs(83, 1, "httpsAccept: Error allocating handle: " << ERR_error_string(ssl_error, NULL) ); | |
3128 | comm_close(newfd); | |
3129 | return NULL; | |
3130 | } | |
3131 | ||
3132 | SSL_set_fd(ssl, newfd); | |
3133 | fd_table[newfd].ssl = ssl; | |
3134 | fd_table[newfd].read_method = &ssl_read_method; | |
3135 | fd_table[newfd].write_method = &ssl_write_method; | |
3136 | ||
3137 | debugs(33, 5, "httpsCreate: will negotate SSL on FD " << newfd); | |
3138 | fd_note(newfd, "client https start"); | |
3139 | ||
3140 | return ssl; | |
3141 | } | |
3142 | ||
63be0a78 | 3143 | /** negotiate an SSL connection */ |
1f7c9178 | 3144 | static void |
3145 | clientNegotiateSSL(int fd, void *data) | |
3146 | { | |
e6ccf245 | 3147 | ConnStateData *conn = (ConnStateData *)data; |
1f7c9178 | 3148 | X509 *client_cert; |
a7ad6e4e | 3149 | SSL *ssl = fd_table[fd].ssl; |
1f7c9178 | 3150 | int ret; |
3151 | ||
a7ad6e4e | 3152 | if ((ret = SSL_accept(ssl)) <= 0) { |
62e76326 | 3153 | int ssl_error = SSL_get_error(ssl, ret); |
3154 | ||
3155 | switch (ssl_error) { | |
3156 | ||
3157 | case SSL_ERROR_WANT_READ: | |
3158 | commSetSelect(fd, COMM_SELECT_READ, clientNegotiateSSL, conn, 0); | |
3159 | return; | |
3160 | ||
3161 | case SSL_ERROR_WANT_WRITE: | |
3162 | commSetSelect(fd, COMM_SELECT_WRITE, clientNegotiateSSL, conn, 0); | |
3163 | return; | |
3164 | ||
6de9e64b | 3165 | case SSL_ERROR_SYSCALL: |
3166 | ||
3167 | if (ret == 0) { | |
bf8fe701 | 3168 | debugs(83, 2, "clientNegotiateSSL: Error negotiating SSL connection on FD " << fd << ": Aborted by client"); |
6de9e64b | 3169 | comm_close(fd); |
3170 | return; | |
3171 | } else { | |
3172 | int hard = 1; | |
3173 | ||
3174 | if (errno == ECONNRESET) | |
3175 | hard = 0; | |
3176 | ||
9e008dda | 3177 | debugs(83, hard ? 1 : 2, "clientNegotiateSSL: Error negotiating SSL connection on FD " << |
bf8fe701 | 3178 | fd << ": " << strerror(errno) << " (" << errno << ")"); |
6de9e64b | 3179 | |
3180 | comm_close(fd); | |
3181 | ||
3182 | return; | |
3183 | } | |
3184 | ||
3185 | case SSL_ERROR_ZERO_RETURN: | |
bf8fe701 | 3186 | debugs(83, 1, "clientNegotiateSSL: Error negotiating SSL connection on FD " << fd << ": Closed by client"); |
6de9e64b | 3187 | comm_close(fd); |
3188 | return; | |
3189 | ||
62e76326 | 3190 | default: |
9e008dda AJ |
3191 | debugs(83, 1, "clientNegotiateSSL: Error negotiating SSL connection on FD " << |
3192 | fd << ": " << ERR_error_string(ERR_get_error(), NULL) << | |
3193 | " (" << ssl_error << "/" << ret << ")"); | |
62e76326 | 3194 | comm_close(fd); |
3195 | return; | |
3196 | } | |
3197 | ||
3198 | /* NOTREACHED */ | |
1f7c9178 | 3199 | } |
62e76326 | 3200 | |
6de9e64b | 3201 | if (SSL_session_reused(ssl)) { |
bf8fe701 | 3202 | debugs(83, 2, "clientNegotiateSSL: Session " << SSL_get_session(ssl) << |
3203 | " reused on FD " << fd << " (" << fd_table[fd].ipaddr << ":" << (int)fd_table[fd].remote_port << ")"); | |
6de9e64b | 3204 | } else { |
3205 | if (do_debug(83, 4)) { | |
3206 | /* Write out the SSL session details.. actually the call below, but | |
3207 | * OpenSSL headers do strange typecasts confusing GCC.. */ | |
3208 | /* PEM_write_SSL_SESSION(debug_log, SSL_get_session(ssl)); */ | |
afdd443f | 3209 | #if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x00908000L |
9f3de01a | 3210 | 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 | 3211 | |
0fd2205b | 3212 | #elif (ALLOW_ALWAYS_SSL_SESSION_DETAIL == 1) |
2930f303 | 3213 | |
0fd2205b | 3214 | /* When using gcc 3.3.x and OpenSSL 0.9.7x sometimes a compile error can occur here. |
3215 | * This is caused by an unpredicatble gcc behaviour on a cast of the first argument | |
3216 | * of PEM_ASN1_write(). For this reason this code section is disabled. To enable it, | |
3217 | * define ALLOW_ALWAYS_SSL_SESSION_DETAIL=1. | |
3218 | * Because there are two possible usable cast, if you get an error here, try the other | |
3219 | * commented line. */ | |
3220 | ||
3221 | PEM_ASN1_write((int(*)())i2d_SSL_SESSION, PEM_STRING_SSL_SESSION, debug_log, (char *)SSL_get_session(ssl), NULL,NULL,0,NULL,NULL); | |
3222 | /* PEM_ASN1_write((int(*)(...))i2d_SSL_SESSION, PEM_STRING_SSL_SESSION, debug_log, (char *)SSL_get_session(ssl), NULL,NULL,0,NULL,NULL); */ | |
2930f303 | 3223 | |
0e33d58c | 3224 | #else |
3225 | ||
bf8fe701 | 3226 | debugs(83, 4, "With " OPENSSL_VERSION_TEXT ", session details are available only defining ALLOW_ALWAYS_SSL_SESSION_DETAIL=1 in the source." ); |
0fd2205b | 3227 | |
0e33d58c | 3228 | #endif |
6de9e64b | 3229 | /* Note: This does not automatically fflush the log file.. */ |
3230 | } | |
3231 | ||
bf8fe701 | 3232 | debugs(83, 2, "clientNegotiateSSL: New session " << |
3233 | SSL_get_session(ssl) << " on FD " << fd << " (" << | |
3234 | fd_table[fd].ipaddr << ":" << (int)fd_table[fd].remote_port << | |
3235 | ")"); | |
6de9e64b | 3236 | } |
3237 | ||
bf8fe701 | 3238 | debugs(83, 3, "clientNegotiateSSL: FD " << fd << " negotiated cipher " << |
3239 | SSL_get_cipher(ssl)); | |
1f7c9178 | 3240 | |
6de9e64b | 3241 | client_cert = SSL_get_peer_certificate(ssl); |
62e76326 | 3242 | |
1f7c9178 | 3243 | if (client_cert != NULL) { |
bf8fe701 | 3244 | debugs(83, 3, "clientNegotiateSSL: FD " << fd << |
3245 | " client certificate: subject: " << | |
3246 | X509_NAME_oneline(X509_get_subject_name(client_cert), 0, 0)); | |
3247 | ||
3248 | debugs(83, 3, "clientNegotiateSSL: FD " << fd << | |
3249 | " client certificate: issuer: " << | |
3250 | X509_NAME_oneline(X509_get_issuer_name(client_cert), 0, 0)); | |
1f7c9178 | 3251 | |
1f7c9178 | 3252 | |
62e76326 | 3253 | X509_free(client_cert); |
1f7c9178 | 3254 | } else { |
bf8fe701 | 3255 | debugs(83, 5, "clientNegotiateSSL: FD " << fd << |
3256 | " has no certificate."); | |
1f7c9178 | 3257 | } |
3258 | ||
a46d2c0e | 3259 | conn->readSomeData(); |
1f7c9178 | 3260 | } |
3261 | ||
63be0a78 | 3262 | /** handle a new HTTPS connection */ |
1f7c9178 | 3263 | static void |
15595aab | 3264 | httpsAccept(int sock, int newfd, ConnectionDetail *details, |
62e76326 | 3265 | comm_err_t flag, int xerrno, void *data) |
1f7c9178 | 3266 | { |
3f38a55e | 3267 | https_port_list *s = (https_port_list *)data; |
3268 | SSL_CTX *sslContext = s->sslContext; | |
c4b7a5a9 | 3269 | |
3270 | if (flag != COMM_OK) { | |
62e76326 | 3271 | errno = xerrno; |
bf8fe701 | 3272 | debugs(33, 1, "httpsAccept: FD " << sock << ": accept failure: " << xstrerr(xerrno)); |
62e76326 | 3273 | return; |
c4b7a5a9 | 3274 | } |
62e76326 | 3275 | |
ae7ff0b8 | 3276 | SSL *ssl = NULL; |
3277 | if (!(ssl = httpsCreate(newfd, details, sslContext))) | |
62e76326 | 3278 | return; |
94c3d66f | 3279 | |
1cf238db | 3280 | debugs(33, 5, "httpsAccept: FD " << newfd << " accepted, starting SSL negotiation."); |
3281 | fd_note(newfd, "client https connect"); | |
ae7ff0b8 | 3282 | ConnStateData *connState = connStateCreate(details->peer, details->me, |
9e008dda | 3283 | newfd, &s->http); |
1cf238db | 3284 | typedef CommCbMemFunT<ConnStateData, CommCloseCbParams> Dialer; |
3285 | AsyncCall::Pointer call = asyncCall(33, 5, "ConnStateData::connStateClosed", | |
9e008dda | 3286 | Dialer(connState, &ConnStateData::connStateClosed)); |
1cf238db | 3287 | comm_add_close_handler(newfd, call); |
62e76326 | 3288 | |
c4b7a5a9 | 3289 | if (Config.onoff.log_fqdn) |
cc192b50 | 3290 | fqdncache_gethostbyaddr(details->peer, FQDN_LOOKUP_IF_MISS); |
62e76326 | 3291 | |
9e008dda AJ |
3292 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; |
3293 | AsyncCall::Pointer timeoutCall = asyncCall(33, 5, "ConnStateData::requestTimeout", | |
3294 | TimeoutDialer(connState,&ConnStateData::requestTimeout)); | |
3295 | commSetTimeout(newfd, Config.Timeout.request, timeoutCall); | |
62e76326 | 3296 | |
1f7c9178 | 3297 | #if USE_IDENT |
4daaf3cb AJ |
3298 | if (Ident::TheConfig.identLookup) { |
3299 | ACLFilledChecklist identChecklist(Ident::TheConfig.identLookup, NULL, NULL); | |
b50e327b AJ |
3300 | identChecklist.src_addr = details->peer; |
3301 | identChecklist.my_addr = details->me; | |
b50e327b | 3302 | if (identChecklist.fastCheck()) |
4daaf3cb | 3303 | Ident::Start(details->me, details->peer, clientIdentDone, connState); |
b50e327b | 3304 | } |
1f7c9178 | 3305 | #endif |
62e76326 | 3306 | |
b2130d58 | 3307 | if (s->http.tcp_keepalive.enabled) { |
9e008dda | 3308 | commSetTcpKeepalive(newfd, s->http.tcp_keepalive.idle, s->http.tcp_keepalive.interval, s->http.tcp_keepalive.timeout); |
b2130d58 | 3309 | } |
3310 | ||
c4b7a5a9 | 3311 | commSetSelect(newfd, COMM_SELECT_READ, clientNegotiateSSL, connState, 0); |
62e76326 | 3312 | |
cc192b50 | 3313 | clientdbEstablished(details->peer, 1); |
62e76326 | 3314 | |
3f38a55e | 3315 | incoming_sockets_accepted++; |
1f7c9178 | 3316 | } |
3317 | ||
ae7ff0b8 | 3318 | bool |
3319 | ConnStateData::switchToHttps() | |
3320 | { | |
3321 | assert(!switchedToHttps_); | |
3322 | ||
3323 | //HTTPMSGLOCK(currentobject->http->request); | |
3324 | assert(areAllContextsForThisConnection()); | |
3325 | freeAllContexts(); | |
3326 | //currentobject->connIsFinished(); | |
3327 | ||
3328 | debugs(33, 5, HERE << "converting FD " << fd << " to SSL"); | |
3329 | ||
3330 | // fake a ConnectionDetail object; XXX: make ConnState a ConnectionDetail? | |
3331 | ConnectionDetail detail; | |
3332 | detail.me = me; | |
3333 | detail.peer = peer; | |
3334 | ||
3335 | SSL_CTX *sslContext = port->sslContext; | |
3336 | SSL *ssl = NULL; | |
3337 | if (!(ssl = httpsCreate(fd, &detail, sslContext))) | |
3338 | return false; | |
3339 | ||
3340 | // commSetTimeout() was called for this request before we switched. | |
3341 | ||
3342 | // Disable the client read handler until peer selection is complete | |
3343 | commSetSelect(fd, COMM_SELECT_READ, NULL, NULL, 0); | |
3344 | ||
3345 | commSetSelect(fd, COMM_SELECT_READ, clientNegotiateSSL, this, 0); | |
3346 | ||
3347 | switchedToHttps_ = true; | |
3348 | return true; | |
3349 | } | |
3350 | ||
1f7c9178 | 3351 | #endif /* USE_SSL */ |
3352 | ||
15df8349 | 3353 | |
d193a436 | 3354 | static void |
15df8349 | 3355 | clientHttpConnectionsOpen(void) |
3356 | { | |
cc192b50 | 3357 | http_port_list *s = NULL; |
3358 | int fd = -1; | |
ae7ff0b8 | 3359 | #if USE_SSL |
3360 | int bumpCount = 0; // counts http_ports with sslBump option | |
3361 | #endif | |
62e76326 | 3362 | |
7e3ce7b9 | 3363 | for (s = Config.Sockaddr.http; s; s = s->next) { |
62e76326 | 3364 | if (MAXHTTPPORTS == NHttpSockets) { |
bf8fe701 | 3365 | debugs(1, 1, "WARNING: You have too many 'http_port' lines."); |
3366 | debugs(1, 1, " The limit is " << MAXHTTPPORTS); | |
62e76326 | 3367 | continue; |
3368 | } | |
3369 | ||
ae7ff0b8 | 3370 | #if USE_SSL |
3371 | if (s->sslBump && s->sslContext == NULL) { | |
3372 | debugs(1, 1, "Will not bump SSL at http_port " << | |
3373 | s->http.s << " due to SSL initialization failure."); | |
3374 | s->sslBump = 0; | |
3375 | } | |
3376 | if (s->sslBump) | |
3377 | ++bumpCount; | |
3378 | #endif | |
3379 | ||
04f55905 AJ |
3380 | /* AYJ: 2009-12-27: bit bumpy. new ListenStateData(...) should be doing all the Comm:: stuff ... */ |
3381 | ||
62e76326 | 3382 | enter_suid(); |
c303f6e3 | 3383 | |
9e008dda | 3384 | if (s->spoof_client_ip) { |
31be869c | 3385 | fd = comm_open_listener(SOCK_STREAM, IPPROTO_TCP, s->s, (COMM_NONBLOCKING|COMM_TRANSPARENT), "HTTP Socket"); |
2ad20b4f | 3386 | } else { |
31be869c | 3387 | fd = comm_open_listener(SOCK_STREAM, IPPROTO_TCP, s->s, COMM_NONBLOCKING, "HTTP Socket"); |
c303f6e3 AJ |
3388 | } |
3389 | ||
62e76326 | 3390 | leave_suid(); |
3391 | ||
3392 | if (fd < 0) | |
3393 | continue; | |
3394 | ||
04f55905 | 3395 | AsyncCall::Pointer call = commCbCall(5,5, "SomeCommAcceptHandler(httpAccept)", |
97b8ac39 | 3396 | CommAcceptCbPtrFun(httpAccept, s)); |
62e76326 | 3397 | |
04f55905 | 3398 | s->listener = new Comm::ListenStateData(fd, call, true); |
62e76326 | 3399 | |
bf8fe701 | 3400 | debugs(1, 1, "Accepting " << |
2ad20b4f | 3401 | (s->intercepted ? " intercepted" : "") << |
f165d2fb | 3402 | (s->spoof_client_ip ? " spoofing" : "") << |
2ad20b4f | 3403 | (s->sslBump ? " bumpy" : "") << |
9e008dda | 3404 | (s->accel ? " accelerated" : "") |
cc192b50 | 3405 | << " HTTP connections at " << s->s |
3406 | << ", FD " << fd << "." ); | |
62e76326 | 3407 | |
3408 | HttpSockets[NHttpSockets++] = fd; | |
15df8349 | 3409 | } |
ae7ff0b8 | 3410 | |
3411 | #if USE_SSL | |
3412 | if (bumpCount && !Config.accessList.ssl_bump) | |
3413 | debugs(33, 1, "WARNING: http_port(s) with SslBump found, but no " << | |
9e008dda AJ |
3414 | std::endl << "\tssl_bump ACL configured. No requests will be " << |
3415 | "bumped."); | |
ae7ff0b8 | 3416 | #endif |
d193a436 | 3417 | } |
3418 | ||
3419 | #if USE_SSL | |
3420 | static void | |
3421 | clientHttpsConnectionsOpen(void) | |
3422 | { | |
3423 | https_port_list *s; | |
d193a436 | 3424 | int fd; |
62e76326 | 3425 | |
3f38a55e | 3426 | for (s = Config.Sockaddr.https; s; s = (https_port_list *)s->http.next) { |
62e76326 | 3427 | if (MAXHTTPPORTS == NHttpSockets) { |
ae7ff0b8 | 3428 | debugs(1, 1, "Ignoring 'https_port' lines exceeding the limit."); |
3429 | debugs(1, 1, "The limit is " << MAXHTTPPORTS << " HTTPS ports."); | |
62e76326 | 3430 | continue; |
3431 | } | |
3432 | ||
f9ad0106 | 3433 | if (s->sslContext == NULL) { |
ae7ff0b8 | 3434 | debugs(1, 1, "Ignoring https_port " << s->http.s << |
3435 | " due to SSL initialization failure."); | |
3436 | continue; | |
f9ad0106 | 3437 | } |
3438 | ||
62e76326 | 3439 | enter_suid(); |
31be869c | 3440 | fd = comm_open_listener(SOCK_STREAM, |
04f7fd38 AJ |
3441 | IPPROTO_TCP, |
3442 | s->http.s, | |
3443 | COMM_NONBLOCKING, "HTTPS Socket"); | |
62e76326 | 3444 | leave_suid(); |
3445 | ||
3446 | if (fd < 0) | |
3447 | continue; | |
3448 | ||
04f55905 | 3449 | AsyncCall::Pointer call = commCbCall(5,5, "SomeCommAcceptHandler(httpsAccept)", |
97b8ac39 | 3450 | CommAcceptCbPtrFun(httpsAccept, s)); |
62e76326 | 3451 | |
04f55905 | 3452 | s->listener = new Comm::ListenStateData(fd, call, true); |
62e76326 | 3453 | |
cc192b50 | 3454 | debugs(1, 1, "Accepting HTTPS connections at " << s->http.s << ", FD " << fd << "."); |
62e76326 | 3455 | |
3456 | HttpSockets[NHttpSockets++] = fd; | |
1f7c9178 | 3457 | } |
d193a436 | 3458 | } |
3459 | ||
3460 | #endif | |
3461 | ||
3462 | void | |
3463 | clientOpenListenSockets(void) | |
3464 | { | |
3465 | clientHttpConnectionsOpen(); | |
3466 | #if USE_SSL | |
3467 | clientHttpsConnectionsOpen(); | |
1f7c9178 | 3468 | #endif |
62e76326 | 3469 | |
15df8349 | 3470 | if (NHttpSockets < 1) |
62e76326 | 3471 | fatal("Cannot open HTTP Port"); |
15df8349 | 3472 | } |
edce4d98 | 3473 | |
c0fbae16 | 3474 | void |
3475 | clientHttpConnectionsClose(void) | |
3476 | { | |
04f55905 AJ |
3477 | for (http_port_list *s = Config.Sockaddr.http; s; s = s->next) { |
3478 | if (s->listener) { | |
3479 | debugs(1, 1, "FD " << s->listener->fd << " Closing HTTP connection"); | |
3480 | delete s->listener; | |
3481 | s->listener = NULL; | |
3482 | } | |
3483 | } | |
62e76326 | 3484 | |
04f55905 AJ |
3485 | #if USE_SSL |
3486 | for (http_port_list *s = Config.Sockaddr.https; s; s = s->next) { | |
3487 | if (s->listener) { | |
3488 | debugs(1, 1, "FD " << s->listener->fd << " Closing HTTPS connection"); | |
3489 | delete s->listener; | |
3490 | s->listener = NULL; | |
62e76326 | 3491 | } |
c0fbae16 | 3492 | } |
04f55905 AJ |
3493 | #endif |
3494 | ||
3495 | // TODO see if we can drop HttpSockets array entirely */ | |
3496 | for (int i = 0; i < NHttpSockets; i++) { | |
3497 | HttpSockets[i] = -1; | |
3498 | } | |
62e76326 | 3499 | |
c0fbae16 | 3500 | NHttpSockets = 0; |
3501 | } | |
f66a9ef4 | 3502 | |
3503 | int | |
190154cf | 3504 | varyEvaluateMatch(StoreEntry * entry, HttpRequest * request) |
f66a9ef4 | 3505 | { |
3506 | const char *vary = request->vary_headers; | |
a9925b40 | 3507 | int has_vary = entry->getReply()->header.has(HDR_VARY); |
f66a9ef4 | 3508 | #if X_ACCELERATOR_VARY |
62e76326 | 3509 | |
edce4d98 | 3510 | has_vary |= |
a9925b40 | 3511 | entry->getReply()->header.has(HDR_X_ACCELERATOR_VARY); |
f66a9ef4 | 3512 | #endif |
62e76326 | 3513 | |
f66a9ef4 | 3514 | if (!has_vary || !entry->mem_obj->vary_headers) { |
62e76326 | 3515 | if (vary) { |
3516 | /* Oops... something odd is going on here.. */ | |
9e008dda AJ |
3517 | debugs(33, 1, "varyEvaluateMatch: Oops. Not a Vary object on second attempt, '" << |
3518 | entry->mem_obj->url << "' '" << vary << "'"); | |
62e76326 | 3519 | safe_free(request->vary_headers); |
3520 | return VARY_CANCEL; | |
3521 | } | |
3522 | ||
3523 | if (!has_vary) { | |
3524 | /* This is not a varying object */ | |
3525 | return VARY_NONE; | |
3526 | } | |
3527 | ||
3528 | /* virtual "vary" object found. Calculate the vary key and | |
3529 | * continue the search | |
3530 | */ | |
3531 | vary = httpMakeVaryMark(request, entry->getReply()); | |
3532 | ||
3533 | if (vary) { | |
3534 | request->vary_headers = xstrdup(vary); | |
3535 | return VARY_OTHER; | |
3536 | } else { | |
3537 | /* Ouch.. we cannot handle this kind of variance */ | |
3538 | /* XXX This cannot really happen, but just to be complete */ | |
3539 | return VARY_CANCEL; | |
3540 | } | |
f66a9ef4 | 3541 | } else { |
62e76326 | 3542 | if (!vary) { |
3543 | vary = httpMakeVaryMark(request, entry->getReply()); | |
3544 | ||
3545 | if (vary) | |
3546 | request->vary_headers = xstrdup(vary); | |
3547 | } | |
3548 | ||
3549 | if (!vary) { | |
3550 | /* Ouch.. we cannot handle this kind of variance */ | |
3551 | /* XXX This cannot really happen, but just to be complete */ | |
3552 | return VARY_CANCEL; | |
3553 | } else if (strcmp(vary, entry->mem_obj->vary_headers) == 0) { | |
3554 | return VARY_MATCH; | |
3555 | } else { | |
3556 | /* Oops.. we have already been here and still haven't | |
3557 | * found the requested variant. Bail out | |
3558 | */ | |
bf8fe701 | 3559 | debugs(33, 1, "varyEvaluateMatch: Oops. Not a Vary match on second attempt, '" << |
9e008dda | 3560 | entry->mem_obj->url << "' '" << vary << "'"); |
62e76326 | 3561 | return VARY_CANCEL; |
3562 | } | |
f66a9ef4 | 3563 | } |
3564 | } | |
28d4805a | 3565 | |
c0941a6a | 3566 | ACLFilledChecklist * |
59a1efb2 | 3567 | clientAclChecklistCreate(const acl_access * acl, ClientHttpRequest * http) |
28d4805a | 3568 | { |
1cf238db | 3569 | ConnStateData * conn = http->getConn(); |
c0941a6a | 3570 | ACLFilledChecklist *ch = new ACLFilledChecklist(acl, http->request, |
af6a12ee | 3571 | cbdataReferenceValid(conn) && conn != NULL ? conn->rfc931 : dash_str); |
28d4805a | 3572 | |
3573 | /* | |
3574 | * hack for ident ACL. It needs to get full addresses, and a place to store | |
3575 | * the ident result on persistent connections... | |
3576 | */ | |
3577 | /* connection oriented auth also needs these two lines for it's operation. */ | |
3578 | /* | |
3579 | * Internal requests do not have a connection reference, because: A) their | |
3580 | * byte count may be transformed before being applied to an outbound | |
3581 | * connection B) they are internal - any limiting on them should be done on | |
3582 | * the server end. | |
3583 | */ | |
62e76326 | 3584 | |
1cf238db | 3585 | if (conn != NULL) |
c0941a6a | 3586 | ch->conn(conn); /* unreferenced in FilledCheckList.cc */ |
28d4805a | 3587 | |
3588 | return ch; | |
3589 | } | |
a46d2c0e | 3590 | |
3591 | CBDATA_CLASS_INIT(ConnStateData); | |
3592 | ||
1cf238db | 3593 | ConnStateData::ConnStateData() :AsyncJob("ConnStateData"), transparent_ (false), reading_ (false), closing_ (false) |
b65351fa | 3594 | { |
d67acb4e AJ |
3595 | pinning.fd = -1; |
3596 | pinning.pinned = false; | |
3597 | pinning.auth = false; | |
b65351fa | 3598 | } |
a46d2c0e | 3599 | |
3600 | bool | |
3601 | ConnStateData::transparent() const | |
3602 | { | |
3603 | return transparent_; | |
3604 | } | |
3605 | ||
3606 | void | |
3607 | ConnStateData::transparent(bool const anInt) | |
3608 | { | |
3609 | transparent_ = anInt; | |
3610 | } | |
3611 | ||
3612 | bool | |
3613 | ConnStateData::reading() const | |
3614 | { | |
3615 | return reading_; | |
3616 | } | |
3617 | ||
3618 | void | |
3619 | ConnStateData::reading(bool const newBool) | |
3620 | { | |
3621 | assert (reading() != newBool); | |
3622 | reading_ = newBool; | |
3623 | } | |
3624 | ||
5f8252d2 | 3625 | |
3626 | BodyPipe::Pointer | |
3e62bd58 | 3627 | ConnStateData::expectRequestBody(int64_t size) |
5f8252d2 | 3628 | { |
3629 | bodyPipe = new BodyPipe(this); | |
3630 | bodyPipe->setBodySize(size); | |
3631 | return bodyPipe; | |
3632 | } | |
3633 | ||
55e44db9 | 3634 | bool |
3635 | ConnStateData::closing() const | |
3636 | { | |
3637 | return closing_; | |
3638 | } | |
3639 | ||
63be0a78 | 3640 | /** |
3641 | * Called by ClientSocketContext to give the connection a chance to read | |
3642 | * the entire body before closing the socket. | |
3643 | */ | |
55e44db9 | 3644 | void |
5f8252d2 | 3645 | ConnStateData::startClosing(const char *reason) |
55e44db9 | 3646 | { |
5f8252d2 | 3647 | debugs(33, 5, HERE << "startClosing " << this << " for " << reason); |
3648 | assert(!closing()); | |
3649 | closing_ = true; | |
3650 | ||
3651 | assert(bodyPipe != NULL); | |
3652 | assert(bodySizeLeft() > 0); | |
3653 | ||
3654 | // We do not have to abort the body pipeline because we are going to | |
3655 | // read the entire body anyway. | |
3656 | // Perhaps an ICAP server wants to log the complete request. | |
3657 | ||
3658 | // If a consumer abort have caused this closing, we may get stuck | |
3659 | // as nobody is consuming our data. Allow auto-consumption. | |
3660 | bodyPipe->enableAutoConsumption(); | |
55e44db9 | 3661 | } |
3662 | ||
3ff65596 AR |
3663 | // initialize dechunking state |
3664 | void | |
3665 | ConnStateData::startDechunkingRequest(HttpParser *hp) | |
3666 | { | |
3667 | debugs(33, 5, HERE << "start dechunking at " << HttpParserRequestLen(hp)); | |
3668 | assert(in.dechunkingState == chunkUnknown); | |
3669 | assert(!in.bodyParser); | |
3670 | in.bodyParser = new ChunkedCodingParser; | |
3671 | in.chunkedSeen = HttpParserRequestLen(hp); // skip headers when dechunking | |
3672 | in.chunked.init(); // TODO: should we have a smaller-than-default limit? | |
3673 | in.dechunked.init(); | |
3674 | in.dechunkingState = chunkParsing; | |
3675 | } | |
3676 | ||
3677 | // put parsed content into input buffer and clean up | |
3678 | void | |
3679 | ConnStateData::finishDechunkingRequest(HttpParser *hp) | |
3680 | { | |
3681 | debugs(33, 5, HERE << "finish dechunking; content: " << in.dechunked.contentSize()); | |
3682 | ||
3683 | assert(in.dechunkingState == chunkReady); | |
e1381638 | 3684 | assert(in.bodyParser); |
3ff65596 AR |
3685 | delete in.bodyParser; |
3686 | in.bodyParser = NULL; | |
3687 | ||
3688 | const mb_size_t headerSize = HttpParserRequestLen(hp); | |
3689 | ||
3690 | // dechunking cannot make data bigger | |
3691 | assert(headerSize + in.dechunked.contentSize() + in.chunked.contentSize() | |
e1381638 | 3692 | <= static_cast<mb_size_t>(in.notYetUsed)); |
3ff65596 AR |
3693 | assert(in.notYetUsed <= in.allocatedSize); |
3694 | ||
3695 | // copy dechunked content | |
3696 | char *end = in.buf + headerSize; | |
3697 | xmemmove(end, in.dechunked.content(), in.dechunked.contentSize()); | |
3698 | end += in.dechunked.contentSize(); | |
3699 | ||
3700 | // copy post-chunks leftovers, if any, caused by request pipelining? | |
3701 | if (in.chunked.contentSize()) { | |
3702 | xmemmove(end, in.chunked.content(), in.chunked.contentSize()); | |
3703 | end += in.chunked.contentSize(); | |
3704 | } | |
3705 | ||
3706 | in.notYetUsed = end - in.buf; | |
3707 | ||
3708 | in.chunked.clean(); | |
3709 | in.dechunked.clean(); | |
3710 | in.dechunkingState = chunkUnknown; | |
3711 | } | |
3712 | ||
3713 | // parse newly read request chunks and buffer them for finishDechunkingRequest | |
3714 | // returns true iff needs more data | |
3715 | bool | |
3716 | ConnStateData::parseRequestChunks(HttpParser *) | |
3717 | { | |
3718 | debugs(33,5, HERE << "parsing chunked request body at " << | |
e1381638 | 3719 | in.chunkedSeen << " < " << in.notYetUsed); |
3ff65596 AR |
3720 | assert(in.bodyParser); |
3721 | assert(in.dechunkingState == chunkParsing); | |
3722 | ||
3723 | assert(in.chunkedSeen <= in.notYetUsed); | |
3724 | const mb_size_t fresh = in.notYetUsed - in.chunkedSeen; | |
3725 | ||
3726 | // be safe: count some chunked coding metadata towards the total body size | |
3727 | if (fresh + in.dechunked.contentSize() > Config.maxChunkedRequestBodySize) { | |
3728 | debugs(33,3, HERE << "chunked body (" << fresh << " + " << | |
e1381638 AJ |
3729 | in.dechunked.contentSize() << " may exceed " << |
3730 | "chunked_request_body_max_size=" << | |
3731 | Config.maxChunkedRequestBodySize); | |
3ff65596 AR |
3732 | in.dechunkingState = chunkError; |
3733 | return false; | |
3734 | } | |
e1381638 | 3735 | |
3ff65596 AR |
3736 | if (fresh > in.chunked.potentialSpaceSize()) { |
3737 | // should not happen if Config.maxChunkedRequestBodySize is reasonable | |
3738 | debugs(33,1, HERE << "request_body_max_size exceeds chunked buffer " << | |
e1381638 AJ |
3739 | "size: " << fresh << " + " << in.chunked.contentSize() << " > " << |
3740 | in.chunked.potentialSpaceSize() << " with " << | |
3741 | "chunked_request_body_max_size=" << | |
3742 | Config.maxChunkedRequestBodySize); | |
3ff65596 AR |
3743 | in.dechunkingState = chunkError; |
3744 | return false; | |
3745 | } | |
3746 | in.chunked.append(in.buf + in.chunkedSeen, fresh); | |
3747 | in.chunkedSeen += fresh; | |
3748 | ||
3749 | try { // the parser will throw on errors | |
3750 | if (in.bodyParser->parse(&in.chunked, &in.dechunked)) | |
3751 | in.dechunkingState = chunkReady; // successfully parsed all chunks | |
3752 | else | |
3753 | return true; // need more, keep the same state | |
3754 | } catch (...) { | |
3755 | debugs(33,3, HERE << "chunk parsing error"); | |
3756 | in.dechunkingState = chunkError; | |
3757 | } | |
3758 | return false; // error, unsupported, or done | |
3759 | } | |
3760 | ||
a46d2c0e | 3761 | char * |
3762 | ConnStateData::In::addressToReadInto() const | |
3763 | { | |
3764 | return buf + notYetUsed; | |
3765 | } | |
3766 | ||
3ff65596 | 3767 | ConnStateData::In::In() : bodyParser(NULL), |
e1381638 AJ |
3768 | buf (NULL), notYetUsed (0), allocatedSize (0), |
3769 | dechunkingState(ConnStateData::chunkUnknown) | |
a46d2c0e | 3770 | {} |
3771 | ||
3772 | ConnStateData::In::~In() | |
3773 | { | |
3774 | if (allocatedSize) | |
3775 | memFreeBuf(allocatedSize, buf); | |
3ff65596 AR |
3776 | if (bodyParser) |
3777 | delete bodyParser; // TODO: pool | |
a46d2c0e | 3778 | } |
d67acb4e AJ |
3779 | |
3780 | /* This is a comm call normally scheduled by comm_close() */ | |
3781 | void | |
3782 | ConnStateData::clientPinnedConnectionClosed(const CommCloseCbParams &io) | |
3783 | { | |
3784 | pinning.fd = -1; | |
3785 | if (pinning.peer) { | |
9e008dda | 3786 | cbdataReferenceDone(pinning.peer); |
d67acb4e AJ |
3787 | } |
3788 | safe_free(pinning.host); | |
3789 | /* NOTE: pinning.pinned should be kept. This combined with fd == -1 at the end of a request indicates that the host | |
3790 | * connection has gone away */ | |
3791 | } | |
3792 | ||
8bcf08e0 | 3793 | void ConnStateData::pinConnection(int pinning_fd, HttpRequest *request, struct peer *aPeer, bool auth) |
9e008dda | 3794 | { |
d67acb4e AJ |
3795 | fde *f; |
3796 | char desc[FD_DESC_SZ]; | |
3797 | ||
3798 | if (pinning.fd == pinning_fd) | |
9e008dda | 3799 | return; |
d67acb4e | 3800 | else if (pinning.fd != -1) |
9e008dda AJ |
3801 | comm_close(pinning.fd); |
3802 | ||
3803 | if (pinning.host) | |
3804 | safe_free(pinning.host); | |
3805 | ||
d67acb4e AJ |
3806 | pinning.fd = pinning_fd; |
3807 | pinning.host = xstrdup(request->GetHost()); | |
3808 | pinning.port = request->port; | |
3809 | pinning.pinned = true; | |
3810 | if (pinning.peer) | |
9e008dda | 3811 | cbdataReferenceDone(pinning.peer); |
8bcf08e0 FC |
3812 | if (aPeer) |
3813 | pinning.peer = cbdataReference(aPeer); | |
d67acb4e AJ |
3814 | pinning.auth = auth; |
3815 | f = &fd_table[fd]; | |
3816 | snprintf(desc, FD_DESC_SZ, "%s pinned connection for %s:%d (%d)", | |
8bcf08e0 | 3817 | (auth || !aPeer) ? request->GetHost() : aPeer->name, f->ipaddr, (int) f->remote_port, fd); |
d67acb4e | 3818 | fd_note(pinning_fd, desc); |
9e008dda | 3819 | |
d67acb4e AJ |
3820 | typedef CommCbMemFunT<ConnStateData, CommCloseCbParams> Dialer; |
3821 | pinning.closeHandler = asyncCall(33, 5, "ConnStateData::clientPinnedConnectionClosed", | |
9e008dda | 3822 | Dialer(this, &ConnStateData::clientPinnedConnectionClosed)); |
d67acb4e AJ |
3823 | comm_add_close_handler(pinning_fd, pinning.closeHandler); |
3824 | ||
3825 | } | |
3826 | ||
8bcf08e0 | 3827 | int ConnStateData::validatePinnedConnection(HttpRequest *request, const struct peer *aPeer) |
d67acb4e AJ |
3828 | { |
3829 | bool valid = true; | |
3830 | if (pinning.fd < 0) | |
9e008dda AJ |
3831 | return -1; |
3832 | ||
d67acb4e | 3833 | if (pinning.auth && request && strcasecmp(pinning.host, request->GetHost()) != 0) { |
9e008dda | 3834 | valid = false; |
d67acb4e | 3835 | } |
9e008dda AJ |
3836 | if (request && pinning.port != request->port) { |
3837 | valid = false; | |
d67acb4e | 3838 | } |
9e008dda AJ |
3839 | if (pinning.peer && !cbdataReferenceValid(pinning.peer)) { |
3840 | valid = false; | |
d67acb4e | 3841 | } |
8bcf08e0 | 3842 | if (aPeer != pinning.peer) { |
9e008dda | 3843 | valid = false; |
d67acb4e AJ |
3844 | } |
3845 | ||
9e008dda AJ |
3846 | if (!valid) { |
3847 | int pinning_fd=pinning.fd; | |
3848 | /* The pinning info is not safe, remove any pinning info*/ | |
3849 | unpinConnection(); | |
d67acb4e | 3850 | |
9e008dda AJ |
3851 | /* also close the server side socket, we should not use it for invalid/unauthenticated |
3852 | requests... | |
3853 | */ | |
3854 | comm_close(pinning_fd); | |
3855 | return -1; | |
d67acb4e AJ |
3856 | } |
3857 | ||
3858 | return pinning.fd; | |
3859 | } | |
3860 | ||
3861 | void ConnStateData::unpinConnection() | |
3862 | { | |
9e008dda AJ |
3863 | if (pinning.peer) |
3864 | cbdataReferenceDone(pinning.peer); | |
d67acb4e | 3865 | |
9e008dda AJ |
3866 | if (pinning.closeHandler != NULL) { |
3867 | comm_remove_close_handler(pinning.fd, pinning.closeHandler); | |
3868 | pinning.closeHandler = NULL; | |
d67acb4e AJ |
3869 | } |
3870 | pinning.fd = -1; | |
3871 | safe_free(pinning.host); | |
3872 | } |