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3c66d057 | 1 | |
dd11e0b7 | 2 | /* |
47f6e231 | 3 | * $Id: client_side.cc,v 1.758 2007/08/13 17:20:51 hno Exp $ |
dd11e0b7 | 4 | * |
5 | * DEBUG: section 33 Client-side Routines | |
6 | * AUTHOR: Duane Wessels | |
7 | * | |
2b6662ba | 8 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
e25c139f | 9 | * ---------------------------------------------------------- |
dd11e0b7 | 10 | * |
2b6662ba | 11 | * Squid is the result of efforts by numerous individuals from |
12 | * the Internet community; see the CONTRIBUTORS file for full | |
13 | * details. Many organizations have provided support for Squid's | |
14 | * development; see the SPONSORS file for full details. Squid is | |
15 | * Copyrighted (C) 2001 by the Regents of the University of | |
16 | * California; see the COPYRIGHT file for full details. Squid | |
17 | * incorporates software developed and/or copyrighted by other | |
18 | * sources; see the CREDITS file for full details. | |
dd11e0b7 | 19 | * |
20 | * This program is free software; you can redistribute it and/or modify | |
21 | * it under the terms of the GNU General Public License as published by | |
22 | * the Free Software Foundation; either version 2 of the License, or | |
23 | * (at your option) any later version. | |
24 | * | |
25 | * This program is distributed in the hope that it will be useful, | |
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | * GNU General Public License for more details. | |
29 | * | |
30 | * You should have received a copy of the GNU General Public License | |
31 | * along with this program; if not, write to the Free Software | |
cbdec147 | 32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
e25c139f | 33 | * |
dd11e0b7 | 34 | */ |
f88bb09c | 35 | |
62e76326 | 36 | /* Errors and client side |
edce4d98 | 37 | * |
38 | * Problem the first: the store entry is no longer authoritative on the | |
39 | * reply status. EBITTEST (E_ABORT) is no longer a valid test outside | |
40 | * of client_side_reply.c. | |
41 | * Problem the second: resources are wasted if we delay in cleaning up. | |
42 | * Problem the third we can't depend on a connection close to clean up. | |
43 | * | |
44 | * Nice thing the first: Any step in the stream can callback with data | |
45 | * representing an error. | |
46 | * Nice thing the second: once you stop requesting reads from upstream, | |
47 | * upstream can be stopped too. | |
48 | * | |
49 | * Solution #1: Error has a callback mechanism to hand over a membuf | |
50 | * with the error content. The failing node pushes that back as the | |
51 | * reply. Can this be generalised to reduce duplicate efforts? | |
52 | * A: Possibly. For now, only one location uses this. | |
53 | * How to deal with pre-stream errors? | |
54 | * Tell client_side_reply that we *want* an error page before any | |
55 | * stream calls occur. Then we simply read as normal. | |
56 | */ | |
57 | ||
f88bb09c | 58 | #include "squid.h" |
a46d2c0e | 59 | #include "client_side.h" |
c8be6d7b | 60 | #include "clientStream.h" |
61 | #include "IPInterception.h" | |
f5691f9c | 62 | #include "AuthUserRequest.h" |
e6ccf245 | 63 | #include "Store.h" |
c4b7a5a9 | 64 | #include "comm.h" |
25b6a907 | 65 | #include "HttpHdrContRange.h" |
528b2c61 | 66 | #include "HttpReply.h" |
67 | #include "HttpRequest.h" | |
68 | #include "MemObject.h" | |
69 | #include "fde.h" | |
70 | #include "client_side_request.h" | |
4fb35c3c | 71 | #include "ACLChecklist.h" |
ee0989f2 | 72 | #include "ConnectionDetail.h" |
0655fa4d | 73 | #include "client_side_reply.h" |
de31d06f | 74 | #include "ClientRequestContext.h" |
0eb49b6d | 75 | #include "MemBuf.h" |
985c86bc | 76 | #include "SquidTime.h" |
5cafc1d6 | 77 | |
5492ad1d | 78 | #if LINGERING_CLOSE |
79 | #define comm_close comm_lingering_close | |
80 | #endif | |
81 | ||
edce4d98 | 82 | /* Persistent connection logic: |
83 | * | |
84 | * requests (httpClientRequest structs) get added to the connection | |
85 | * list, with the current one being chr | |
86 | * | |
87 | * The request is *immediately* kicked off, and data flows through | |
88 | * to clientSocketRecipient. | |
89 | * | |
90 | * If the data that arrives at clientSocketRecipient is not for the current | |
91 | * request, clientSocketRecipient simply returns, without requesting more | |
92 | * data, or sending it. | |
93 | * | |
94 | * ClientKeepAliveNextRequest will then detect the presence of data in | |
59a1efb2 | 95 | * the next ClientHttpRequest, and will send it, restablishing the |
edce4d98 | 96 | * data flow. |
97 | */ | |
98 | ||
99 | /* our socket-related context */ | |
62e76326 | 100 | |
62e76326 | 101 | |
0655fa4d | 102 | CBDATA_CLASS_INIT(ClientSocketContext); |
62e76326 | 103 | |
0655fa4d | 104 | void * |
105 | ClientSocketContext::operator new (size_t byteCount) | |
106 | { | |
107 | /* derived classes with different sizes must implement their own new */ | |
108 | assert (byteCount == sizeof (ClientSocketContext)); | |
109 | CBDATA_INIT_TYPE(ClientSocketContext); | |
110 | return cbdataAlloc(ClientSocketContext); | |
111 | } | |
62e76326 | 112 | |
0655fa4d | 113 | void |
114 | ClientSocketContext::operator delete (void *address) | |
115 | { | |
116 | cbdataFree (address); | |
117 | } | |
7a2f978b | 118 | |
edce4d98 | 119 | /* Local functions */ |
528b2c61 | 120 | /* ClientSocketContext */ |
59a1efb2 | 121 | static ClientSocketContext *ClientSocketContextNew(ClientHttpRequest *); |
edce4d98 | 122 | /* other */ |
2b663917 | 123 | static IOCB clientWriteComplete; |
124 | static IOCB clientWriteBodyComplete; | |
c4b7a5a9 | 125 | static IOCB clientReadRequest; |
f900210a | 126 | static bool clientParseRequest(ConnStateData::Pointer conn, bool &do_next_read); |
127 | static void clientAfterReadingRequests(int fd, ConnStateData::Pointer &conn, int do_next_read); | |
7a2f978b | 128 | static PF connStateFree; |
129 | static PF requestTimeout; | |
b5c39993 | 130 | static PF clientLifetimeTimeout; |
a2ac85d9 | 131 | static ClientSocketContext *parseHttpRequestAbort(ConnStateData::Pointer & conn, |
62e76326 | 132 | const char *uri); |
a5baffba | 133 | static ClientSocketContext *parseHttpRequest(ConnStateData::Pointer &, HttpParser *, method_t *, HttpVersion *); |
3898f57f | 134 | #if USE_IDENT |
05832ae1 | 135 | static IDCB clientIdentDone; |
3898f57f | 136 | #endif |
edce4d98 | 137 | static CSCB clientSocketRecipient; |
138 | static CSD clientSocketDetach; | |
59a1efb2 | 139 | static void clientSetKeepaliveFlag(ClientHttpRequest *); |
190154cf | 140 | static int clientIsContentLengthValid(HttpRequest * r); |
a46d2c0e | 141 | static bool okToAccept(); |
47f6e231 | 142 | static int clientIsRequestBodyValid(int64_t bodyLength); |
143 | static int clientIsRequestBodyTooLargeForPolicy(int64_t bodyLength); | |
50c09fc4 | 144 | |
c8be6d7b | 145 | static void clientUpdateStatHistCounters(log_type logType, int svc_time); |
146 | static void clientUpdateStatCounters(log_type logType); | |
147 | static void clientUpdateHierCounters(HierarchyLogEntry *); | |
528b2c61 | 148 | static bool clientPingHasFinished(ping_data const *aPing); |
190154cf | 149 | static void clientPrepareLogWithRequestDetails(HttpRequest *, AccessLogEntry *); |
e4a67a80 | 150 | #ifndef PURIFY |
a2ac85d9 | 151 | static int connIsUsable(ConnStateData::Pointer conn); |
e4a67a80 | 152 | #endif |
528b2c61 | 153 | static int responseFinishedOrFailed(HttpReply * rep, StoreIOBuffer const &recievedData); |
a2ac85d9 | 154 | static void ClientSocketContextPushDeferredIfNeeded(ClientSocketContext::Pointer deferredRequest, ConnStateData::Pointer & conn); |
c8be6d7b | 155 | static void clientUpdateSocketStats(log_type logType, size_t size); |
156 | ||
84cc2635 | 157 | char *skipLeadingSpace(char *aString); |
a2ac85d9 | 158 | static int connReadWasError(ConnStateData::Pointer& conn, comm_err_t, int size, int xerrno); |
159 | static int connFinishedWithConn(ConnStateData::Pointer& conn, int size); | |
3b299123 | 160 | static void connNoteUseOfBuffer(ConnStateData* conn, size_t byteCount); |
a2ac85d9 | 161 | static int connKeepReadingIncompleteRequest(ConnStateData::Pointer & conn); |
162 | static void connCancelIncompleteRequests(ConnStateData::Pointer & conn); | |
62e76326 | 163 | |
3f38a55e | 164 | static ConnStateData *connStateCreate(struct sockaddr_in *peer, struct sockaddr_in *me, int fd, http_port_list *port); |
528b2c61 | 165 | |
166 | int | |
167 | ClientSocketContext::fd() const | |
168 | { | |
169 | assert (http); | |
94a396a3 | 170 | assert (http->getConn() != NULL); |
98242069 | 171 | return http->getConn()->fd; |
528b2c61 | 172 | } |
c8be6d7b | 173 | |
174 | clientStreamNode * | |
528b2c61 | 175 | ClientSocketContext::getTail() const |
c8be6d7b | 176 | { |
0655fa4d | 177 | if (http->client_stream.tail) |
178 | return (clientStreamNode *)http->client_stream.tail->data; | |
179 | ||
180 | return NULL; | |
c8be6d7b | 181 | } |
182 | ||
183 | clientStreamNode * | |
528b2c61 | 184 | ClientSocketContext::getClientReplyContext() const |
c8be6d7b | 185 | { |
528b2c61 | 186 | return (clientStreamNode *)http->client_stream.tail->prev->data; |
c8be6d7b | 187 | } |
188 | ||
c4b7a5a9 | 189 | /* |
190 | * This routine should be called to grow the inbuf and then | |
191 | * call comm_read(). | |
192 | */ | |
193 | void | |
a46d2c0e | 194 | ConnStateData::readSomeData() |
c4b7a5a9 | 195 | { |
a46d2c0e | 196 | if (reading()) |
62e76326 | 197 | return; |
198 | ||
a46d2c0e | 199 | reading(true); |
c4b7a5a9 | 200 | |
bf8fe701 | 201 | debugs(33, 4, "clientReadSomeData: FD " << fd << ": reading request..."); |
62e76326 | 202 | |
a46d2c0e | 203 | makeSpaceAvailable(); |
62e76326 | 204 | |
0e783891 | 205 | /* Make sure we are not still reading from the client side! */ |
206 | /* XXX this could take a bit of CPU time! aiee! -- adrian */ | |
a46d2c0e | 207 | assert(!comm_has_pending_read(fd)); |
62e76326 | 208 | |
a46d2c0e | 209 | comm_read(fd, in.addressToReadInto(), getAvailableBufferLength(), clientReadRequest, this); |
c4b7a5a9 | 210 | } |
62e76326 | 211 | |
c4b7a5a9 | 212 | |
c8be6d7b | 213 | void |
a2ac85d9 | 214 | ClientSocketContext::removeFromConnectionList(ConnStateData::Pointer conn) |
c8be6d7b | 215 | { |
0655fa4d | 216 | ClientSocketContext::Pointer *tempContextPointer; |
94a396a3 | 217 | assert(conn != NULL); |
218 | assert(conn->getCurrentContext() != NULL); | |
c8be6d7b | 219 | /* Unlink us from the connection request list */ |
0655fa4d | 220 | tempContextPointer = & conn->currentobject; |
62e76326 | 221 | |
0655fa4d | 222 | while (tempContextPointer->getRaw()) { |
62e76326 | 223 | if (*tempContextPointer == this) |
224 | break; | |
225 | ||
226 | tempContextPointer = &(*tempContextPointer)->next; | |
c8be6d7b | 227 | } |
62e76326 | 228 | |
0655fa4d | 229 | assert(tempContextPointer->getRaw() != NULL); |
528b2c61 | 230 | *tempContextPointer = next; |
231 | next = NULL; | |
c8be6d7b | 232 | } |
ea6f43cd | 233 | |
0655fa4d | 234 | ClientSocketContext::~ClientSocketContext() |
f88bb09c | 235 | { |
0655fa4d | 236 | clientStreamNode *node = getTail(); |
237 | ||
238 | if (node) { | |
239 | ClientSocketContext *streamContext = dynamic_cast<ClientSocketContext *> (node->data.getRaw()); | |
240 | ||
241 | if (streamContext) { | |
242 | /* We are *always* the tail - prevent recursive free */ | |
243 | assert(this == streamContext); | |
244 | node->data = NULL; | |
245 | } | |
246 | } | |
247 | ||
248 | if (connRegistered_) | |
249 | deRegisterWithConn(); | |
250 | ||
251 | httpRequestFree(http); | |
252 | ||
edce4d98 | 253 | /* clean up connection links to us */ |
c53577d9 | 254 | assert(this != next.getRaw()); |
0655fa4d | 255 | } |
62e76326 | 256 | |
0655fa4d | 257 | void |
258 | ClientSocketContext::registerWithConn() | |
259 | { | |
260 | assert (!connRegistered_); | |
261 | assert (http); | |
94a396a3 | 262 | assert (http->getConn() != NULL); |
0655fa4d | 263 | connRegistered_ = true; |
98242069 | 264 | http->getConn()->addContextToQueue(this); |
0655fa4d | 265 | } |
266 | ||
267 | void | |
268 | ClientSocketContext::deRegisterWithConn() | |
269 | { | |
270 | assert (connRegistered_); | |
98242069 | 271 | removeFromConnectionList(http->getConn()); |
0655fa4d | 272 | connRegistered_ = false; |
273 | } | |
274 | ||
275 | void | |
276 | ClientSocketContext::connIsFinished() | |
277 | { | |
278 | assert (http); | |
94a396a3 | 279 | assert (http->getConn() != NULL); |
0655fa4d | 280 | deRegisterWithConn(); |
281 | /* we can't handle any more stream data - detach */ | |
282 | clientStreamDetach(getTail(), http); | |
283 | } | |
284 | ||
fedd1531 | 285 | ClientSocketContext::ClientSocketContext() : http(NULL), reply(NULL), next(NULL), |
0655fa4d | 286 | writtenToSocket(0), |
287 | mayUseConnection_ (false), | |
288 | connRegistered_ (false) | |
289 | { | |
290 | memset (reqbuf, '\0', sizeof (reqbuf)); | |
291 | flags.deferred = 0; | |
292 | flags.parsed_ok = 0; | |
293 | deferredparams.node = NULL; | |
294 | deferredparams.rep = NULL; | |
f88bb09c | 295 | } |
296 | ||
528b2c61 | 297 | ClientSocketContext * |
59a1efb2 | 298 | ClientSocketContextNew(ClientHttpRequest * http) |
f88bb09c | 299 | { |
528b2c61 | 300 | ClientSocketContext *newContext; |
edce4d98 | 301 | assert(http != NULL); |
0655fa4d | 302 | newContext = new ClientSocketContext; |
c8be6d7b | 303 | newContext->http = http; |
304 | return newContext; | |
4d55827a | 305 | } |
306 | ||
edce4d98 | 307 | #if USE_IDENT |
4d55827a | 308 | static void |
edce4d98 | 309 | clientIdentDone(const char *ident, void *data) |
4d55827a | 310 | { |
cc59d02a | 311 | ConnStateData *conn = (ConnStateData *)data; |
edce4d98 | 312 | xstrncpy(conn->rfc931, ident ? ident : dash_str, USER_IDENT_SZ); |
e81957b7 | 313 | } |
314 | ||
447e176b | 315 | #endif |
7a2f978b | 316 | |
c8be6d7b | 317 | void |
318 | clientUpdateStatCounters(log_type logType) | |
a7c05555 | 319 | { |
83704487 | 320 | statCounter.client_http.requests++; |
62e76326 | 321 | |
c8be6d7b | 322 | if (logTypeIsATcpHit(logType)) |
62e76326 | 323 | statCounter.client_http.hits++; |
324 | ||
c8be6d7b | 325 | if (logType == LOG_TCP_HIT) |
62e76326 | 326 | statCounter.client_http.disk_hits++; |
c8be6d7b | 327 | else if (logType == LOG_TCP_MEM_HIT) |
62e76326 | 328 | statCounter.client_http.mem_hits++; |
c8be6d7b | 329 | } |
330 | ||
331 | void | |
332 | clientUpdateStatHistCounters(log_type logType, int svc_time) | |
333 | { | |
83704487 | 334 | statHistCount(&statCounter.client_http.all_svc_time, svc_time); |
ee1679df | 335 | /* |
336 | * The idea here is not to be complete, but to get service times | |
337 | * for only well-defined types. For example, we don't include | |
1d7ab0f4 | 338 | * LOG_TCP_REFRESH_FAIL because its not really a cache hit |
ee1679df | 339 | * (we *tried* to validate it, but failed). |
340 | */ | |
62e76326 | 341 | |
c8be6d7b | 342 | switch (logType) { |
62e76326 | 343 | |
1d7ab0f4 | 344 | case LOG_TCP_REFRESH_UNMODIFIED: |
62e76326 | 345 | statHistCount(&statCounter.client_http.nh_svc_time, svc_time); |
346 | break; | |
347 | ||
ee1679df | 348 | case LOG_TCP_IMS_HIT: |
62e76326 | 349 | statHistCount(&statCounter.client_http.nm_svc_time, svc_time); |
350 | break; | |
351 | ||
ee1679df | 352 | case LOG_TCP_HIT: |
62e76326 | 353 | |
ee1679df | 354 | case LOG_TCP_MEM_HIT: |
62e76326 | 355 | |
b540e168 | 356 | case LOG_TCP_OFFLINE_HIT: |
62e76326 | 357 | statHistCount(&statCounter.client_http.hit_svc_time, svc_time); |
358 | break; | |
359 | ||
ee1679df | 360 | case LOG_TCP_MISS: |
62e76326 | 361 | |
ee1679df | 362 | case LOG_TCP_CLIENT_REFRESH_MISS: |
62e76326 | 363 | statHistCount(&statCounter.client_http.miss_svc_time, svc_time); |
364 | break; | |
365 | ||
ee1679df | 366 | default: |
62e76326 | 367 | /* make compiler warnings go away */ |
368 | break; | |
ee1679df | 369 | } |
c8be6d7b | 370 | } |
371 | ||
528b2c61 | 372 | bool |
c8be6d7b | 373 | clientPingHasFinished(ping_data const *aPing) |
374 | { | |
375 | if (0 != aPing->stop.tv_sec && 0 != aPing->start.tv_sec) | |
62e76326 | 376 | return true; |
377 | ||
528b2c61 | 378 | return false; |
c8be6d7b | 379 | } |
380 | ||
381 | void | |
382 | clientUpdateHierCounters(HierarchyLogEntry * someEntry) | |
383 | { | |
384 | ping_data *i; | |
62e76326 | 385 | |
c8547a11 | 386 | switch (someEntry->code) { |
387 | #if USE_CACHE_DIGESTS | |
62e76326 | 388 | |
c8547a11 | 389 | case CD_PARENT_HIT: |
62e76326 | 390 | |
a196e1e4 | 391 | case CD_SIBLING_HIT: |
62e76326 | 392 | statCounter.cd.times_used++; |
393 | break; | |
c8547a11 | 394 | #endif |
62e76326 | 395 | |
c8547a11 | 396 | case SIBLING_HIT: |
62e76326 | 397 | |
c8547a11 | 398 | case PARENT_HIT: |
62e76326 | 399 | |
c8547a11 | 400 | case FIRST_PARENT_MISS: |
62e76326 | 401 | |
c8547a11 | 402 | case CLOSEST_PARENT_MISS: |
62e76326 | 403 | statCounter.icp.times_used++; |
404 | i = &someEntry->ping; | |
405 | ||
406 | if (clientPingHasFinished(i)) | |
407 | statHistCount(&statCounter.icp.query_svc_time, | |
408 | tvSubUsec(i->start, i->stop)); | |
409 | ||
410 | if (i->timeout) | |
411 | statCounter.icp.query_timeouts++; | |
412 | ||
413 | break; | |
414 | ||
c8547a11 | 415 | case CLOSEST_PARENT: |
62e76326 | 416 | |
c8547a11 | 417 | case CLOSEST_DIRECT: |
62e76326 | 418 | statCounter.netdb.times_used++; |
419 | ||
420 | break; | |
421 | ||
69c95dd3 | 422 | default: |
62e76326 | 423 | break; |
17b6e784 | 424 | } |
a7c05555 | 425 | } |
426 | ||
528b2c61 | 427 | void |
428 | ClientHttpRequest::updateCounters() | |
c8be6d7b | 429 | { |
528b2c61 | 430 | clientUpdateStatCounters(logType); |
62e76326 | 431 | |
528b2c61 | 432 | if (request->errType != ERR_NONE) |
62e76326 | 433 | statCounter.client_http.errors++; |
434 | ||
528b2c61 | 435 | clientUpdateStatHistCounters(logType, |
62e76326 | 436 | tvSubMsec(start, current_time)); |
437 | ||
528b2c61 | 438 | clientUpdateHierCounters(&request->hier); |
c8be6d7b | 439 | } |
440 | ||
edce4d98 | 441 | void |
190154cf | 442 | clientPrepareLogWithRequestDetails(HttpRequest * request, AccessLogEntry * aLogEntry) |
7a2f978b | 443 | { |
c8be6d7b | 444 | assert(request); |
445 | assert(aLogEntry); | |
7684c4b1 | 446 | |
447 | if (Config.onoff.log_mime_hdrs) { | |
448 | Packer p; | |
449 | MemBuf mb; | |
2fe7eff9 | 450 | mb.init(); |
7684c4b1 | 451 | packerToMemInit(&p, &mb); |
a9925b40 | 452 | request->header.packInto(&p); |
7684c4b1 | 453 | aLogEntry->headers.request = xstrdup(mb.buf); |
454 | packerClean(&p); | |
2fe7eff9 | 455 | mb.clean(); |
7684c4b1 | 456 | } |
457 | ||
c8be6d7b | 458 | aLogEntry->http.method = request->method; |
459 | aLogEntry->http.version = request->http_ver; | |
c8be6d7b | 460 | aLogEntry->hier = request->hier; |
62e76326 | 461 | |
30abd221 | 462 | aLogEntry->cache.extuser = request->extacl_user.buf(); |
abb929f0 | 463 | |
c8be6d7b | 464 | if (request->auth_user_request) { |
f5691f9c | 465 | |
466 | if (request->auth_user_request->username()) | |
f5292c64 | 467 | aLogEntry->cache.authuser = |
f5691f9c | 468 | xstrdup(request->auth_user_request->username()); |
f5292c64 | 469 | |
4f0ef8e8 | 470 | AUTHUSERREQUESTUNLOCK(request->auth_user_request, "request via clientPrepareLogWithRequestDetails"); |
7a2f978b | 471 | } |
c8be6d7b | 472 | } |
473 | ||
474 | void | |
528b2c61 | 475 | ClientHttpRequest::logRequest() |
476 | { | |
477 | if (out.size || logType) { | |
62e76326 | 478 | al.icp.opcode = ICP_INVALID; |
479 | al.url = log_uri; | |
bf8fe701 | 480 | debugs(33, 9, "clientLogRequest: al.url='" << al.url << "'"); |
62e76326 | 481 | |
90a8964c | 482 | if (al.reply) { |
483 | al.http.code = al.reply->sline.status; | |
30abd221 | 484 | al.http.content_type = al.reply->content_type.buf(); |
90a8964c | 485 | } else if (loggingEntry() && loggingEntry()->mem_obj) { |
0976f8db | 486 | al.http.code = loggingEntry()->mem_obj->getReply()->sline.status; |
30abd221 | 487 | al.http.content_type = loggingEntry()->mem_obj->getReply()->content_type.buf(); |
62e76326 | 488 | } |
489 | ||
bf8fe701 | 490 | debugs(33, 9, "clientLogRequest: http.code='" << al.http.code << "'"); |
5f8252d2 | 491 | |
90a8964c | 492 | if (loggingEntry() && loggingEntry()->mem_obj) |
b37bde1e | 493 | al.cache.objectSize = loggingEntry()->contentLen(); |
90a8964c | 494 | |
94a396a3 | 495 | al.cache.caddr = getConn() != NULL ? getConn()->log_addr : no_addr; |
90a8964c | 496 | |
62e76326 | 497 | al.cache.size = out.size; |
90a8964c | 498 | |
0976f8db | 499 | al.cache.highOffset = out.offset; |
90a8964c | 500 | |
62e76326 | 501 | al.cache.code = logType; |
90a8964c | 502 | |
62e76326 | 503 | al.cache.msec = tvSubMsec(start, current_time); |
504 | ||
505 | if (request) | |
506 | clientPrepareLogWithRequestDetails(request, &al); | |
507 | ||
94a396a3 | 508 | if (getConn() != NULL && getConn()->rfc931[0]) |
98242069 | 509 | al.cache.rfc931 = getConn()->rfc931; |
62e76326 | 510 | |
a7ad6e4e | 511 | #if USE_SSL |
62e76326 | 512 | |
94a396a3 | 513 | if (getConn() != NULL) |
98242069 | 514 | al.cache.ssluser = sslGetUserEmail(fd_table[getConn()->fd].ssl); |
62e76326 | 515 | |
a7ad6e4e | 516 | #endif |
62e76326 | 517 | |
7684c4b1 | 518 | ACLChecklist *checklist = clientAclChecklistCreate(Config.accessList.log, this); |
62e76326 | 519 | |
fe74b6a6 | 520 | if (al.reply) |
521 | checklist->reply = HTTPMSGLOCK(al.reply); | |
62e76326 | 522 | |
b448c119 | 523 | if (!Config.accessList.log || checklist->fastCheck()) { |
6dd9f4bd | 524 | al.request = HTTPMSGLOCK(request); |
7684c4b1 | 525 | accessLogLog(&al, checklist); |
526 | updateCounters(); | |
62e76326 | 527 | |
94a396a3 | 528 | if (getConn() != NULL) |
98242069 | 529 | clientdbUpdate(getConn()->peer.sin_addr, logType, PROTO_HTTP, out.size); |
7684c4b1 | 530 | } |
531 | ||
532 | delete checklist; | |
533 | ||
534 | accessLogFreeMemory(&al); | |
7a2f978b | 535 | } |
c8be6d7b | 536 | } |
537 | ||
538 | void | |
528b2c61 | 539 | ClientHttpRequest::freeResources() |
c8be6d7b | 540 | { |
528b2c61 | 541 | safe_free(uri); |
542 | safe_free(log_uri); | |
543 | safe_free(redirect.location); | |
30abd221 | 544 | range_iter.boundary.clean(); |
6dd9f4bd | 545 | HTTPMSGUNLOCK(request); |
62e76326 | 546 | |
528b2c61 | 547 | if (client_stream.tail) |
62e76326 | 548 | clientStreamAbort((clientStreamNode *)client_stream.tail->data, this); |
c8be6d7b | 549 | } |
550 | ||
551 | void | |
552 | httpRequestFree(void *data) | |
553 | { | |
59a1efb2 | 554 | ClientHttpRequest *http = (ClientHttpRequest *)data; |
c8be6d7b | 555 | assert(http != NULL); |
528b2c61 | 556 | delete http; |
7a2f978b | 557 | } |
558 | ||
a46d2c0e | 559 | bool |
560 | ConnStateData::areAllContextsForThisConnection() const | |
c8be6d7b | 561 | { |
a46d2c0e | 562 | assert(this != NULL); |
0655fa4d | 563 | ClientSocketContext::Pointer context = getCurrentContext(); |
62e76326 | 564 | |
0655fa4d | 565 | while (context.getRaw()) { |
98242069 | 566 | if (context->http->getConn() != this) |
a46d2c0e | 567 | return false; |
62e76326 | 568 | |
569 | context = context->next; | |
c8be6d7b | 570 | } |
62e76326 | 571 | |
a46d2c0e | 572 | return true; |
c8be6d7b | 573 | } |
574 | ||
575 | void | |
a46d2c0e | 576 | ConnStateData::freeAllContexts() |
c8be6d7b | 577 | { |
0655fa4d | 578 | ClientSocketContext::Pointer context; |
62e76326 | 579 | |
c53577d9 | 580 | while ((context = getCurrentContext()).getRaw() != NULL) { |
0655fa4d | 581 | assert(getCurrentContext() != |
582 | getCurrentContext()->next); | |
583 | context->connIsFinished(); | |
584 | assert (context != currentobject); | |
c8be6d7b | 585 | } |
586 | } | |
587 | ||
7a2f978b | 588 | /* This is a handler normally called by comm_close() */ |
589 | static void | |
590 | connStateFree(int fd, void *data) | |
591 | { | |
e6ccf245 | 592 | ConnStateData *connState = (ConnStateData *)data; |
a46d2c0e | 593 | assert (fd == connState->fd); |
a2ac85d9 | 594 | connState->close(); |
a46d2c0e | 595 | } |
62e76326 | 596 | |
a2ac85d9 | 597 | void |
598 | ConnStateData::close() | |
a46d2c0e | 599 | { |
bf8fe701 | 600 | debugs(33, 3, "ConnStateData::close: FD " << fd); |
7ce98c67 | 601 | openReference = NULL; |
a46d2c0e | 602 | clientdbEstablished(peer.sin_addr, -1); /* decrement */ |
603 | assert(areAllContextsForThisConnection()); | |
604 | freeAllContexts(); | |
f5691f9c | 605 | |
6bf4f823 | 606 | if (auth_user_request != NULL) { |
bf8fe701 | 607 | debugs(33, 4, "ConnStateData::close: freeing auth_user_request '" << auth_user_request << "' (this is '" << this << "')"); |
f5691f9c | 608 | auth_user_request->onConnectionClose(this); |
6bf4f823 | 609 | } |
a2ac85d9 | 610 | } |
611 | ||
612 | bool | |
613 | ConnStateData::isOpen() const | |
614 | { | |
94a396a3 | 615 | return openReference != NULL; |
a2ac85d9 | 616 | } |
617 | ||
618 | ConnStateData::~ConnStateData() | |
619 | { | |
620 | assert(this != NULL); | |
bf8fe701 | 621 | debugs(33, 3, "ConnStateData::~ConnStateData: FD " << fd); |
a2ac85d9 | 622 | |
623 | if (isOpen()) | |
624 | close(); | |
62e76326 | 625 | |
4f0ef8e8 | 626 | AUTHUSERREQUESTUNLOCK(auth_user_request, "~conn"); |
62e76326 | 627 | |
e0db3481 | 628 | cbdataReferenceDone(port); |
83fdd41a | 629 | |
5f8252d2 | 630 | if (bodyPipe != NULL) { |
631 | bodyPipe->clearProducer(false); | |
632 | bodyPipe = NULL; // refcounted | |
633 | } | |
7a2f978b | 634 | } |
635 | ||
c68e9c6b | 636 | /* |
637 | * clientSetKeepaliveFlag() sets request->flags.proxy_keepalive. | |
638 | * This is the client-side persistent connection flag. We need | |
639 | * to set this relatively early in the request processing | |
640 | * to handle hacks for broken servers and clients. | |
641 | */ | |
642 | static void | |
59a1efb2 | 643 | clientSetKeepaliveFlag(ClientHttpRequest * http) |
c68e9c6b | 644 | { |
190154cf | 645 | HttpRequest *request = http->request; |
c68e9c6b | 646 | const HttpHeader *req_hdr = &request->header; |
f6329bc3 | 647 | |
bf8fe701 | 648 | debugs(33, 3, "clientSetKeepaliveFlag: http_ver = " << |
649 | request->http_ver.major << "." << request->http_ver.minor); | |
650 | debugs(33, 3, "clientSetKeepaliveFlag: method = " << | |
651 | RequestMethodStr[request->method]); | |
62e76326 | 652 | |
f5e45ad8 | 653 | HttpVersion http_ver(1,0); |
654 | /* we are HTTP/1.0, no matter what the client requests... */ | |
62e76326 | 655 | |
f5e45ad8 | 656 | if (httpMsgIsPersistent(http_ver, req_hdr)) |
657 | request->flags.proxy_keepalive = 1; | |
c68e9c6b | 658 | } |
659 | ||
31be8b80 | 660 | static int |
190154cf | 661 | clientIsContentLengthValid(HttpRequest * r) |
31be8b80 | 662 | { |
ffc128c4 | 663 | switch (r->method) { |
62e76326 | 664 | |
ffc128c4 | 665 | case METHOD_PUT: |
62e76326 | 666 | |
ffc128c4 | 667 | case METHOD_POST: |
62e76326 | 668 | /* PUT/POST requires a request entity */ |
669 | return (r->content_length >= 0); | |
670 | ||
ffc128c4 | 671 | case METHOD_GET: |
62e76326 | 672 | |
ffc128c4 | 673 | case METHOD_HEAD: |
62e76326 | 674 | /* We do not want to see a request entity on GET/HEAD requests */ |
675 | return (r->content_length <= 0 || Config.onoff.request_entities); | |
676 | ||
ffc128c4 | 677 | default: |
62e76326 | 678 | /* For other types of requests we don't care */ |
679 | return 1; | |
ffc128c4 | 680 | } |
62e76326 | 681 | |
ffc128c4 | 682 | /* NOT REACHED */ |
31be8b80 | 683 | } |
684 | ||
cf50a0af | 685 | int |
47f6e231 | 686 | clientIsRequestBodyValid(int64_t bodyLength) |
7a2f978b | 687 | { |
c8be6d7b | 688 | if (bodyLength >= 0) |
62e76326 | 689 | return 1; |
690 | ||
7a2f978b | 691 | return 0; |
692 | } | |
693 | ||
c8be6d7b | 694 | int |
47f6e231 | 695 | clientIsRequestBodyTooLargeForPolicy(int64_t bodyLength) |
efd900cb | 696 | { |
c8be6d7b | 697 | if (Config.maxRequestBodySize && |
62e76326 | 698 | bodyLength > Config.maxRequestBodySize) |
699 | return 1; /* too large */ | |
700 | ||
efd900cb | 701 | return 0; |
702 | } | |
703 | ||
e4a67a80 | 704 | #ifndef PURIFY |
c8be6d7b | 705 | int |
a2ac85d9 | 706 | connIsUsable(ConnStateData::Pointer conn) |
c8be6d7b | 707 | { |
94a396a3 | 708 | if (conn == NULL || conn->fd == -1) |
62e76326 | 709 | return 0; |
710 | ||
c8be6d7b | 711 | return 1; |
712 | } | |
713 | ||
e4a67a80 | 714 | #endif |
715 | ||
0655fa4d | 716 | ClientSocketContext::Pointer |
717 | ConnStateData::getCurrentContext() const | |
c8be6d7b | 718 | { |
0655fa4d | 719 | assert(this); |
720 | return currentobject; | |
c8be6d7b | 721 | } |
722 | ||
723 | void | |
528b2c61 | 724 | ClientSocketContext::deferRecipientForLater(clientStreamNode * node, HttpReply * rep, StoreIOBuffer recievedData) |
725 | { | |
bf8fe701 | 726 | debugs(33, 2, "clientSocketRecipient: Deferring request " << http->uri); |
528b2c61 | 727 | assert(flags.deferred == 0); |
728 | flags.deferred = 1; | |
729 | deferredparams.node = node; | |
730 | deferredparams.rep = rep; | |
731 | deferredparams.queuedBuffer = recievedData; | |
c8be6d7b | 732 | return; |
733 | } | |
734 | ||
735 | int | |
528b2c61 | 736 | responseFinishedOrFailed(HttpReply * rep, StoreIOBuffer const & recievedData) |
c8be6d7b | 737 | { |
738 | if (rep == NULL && recievedData.data == NULL && recievedData.length == 0) | |
62e76326 | 739 | return 1; |
740 | ||
c8be6d7b | 741 | return 0; |
742 | } | |
743 | ||
0655fa4d | 744 | bool |
745 | ClientSocketContext::startOfOutput() const | |
c8be6d7b | 746 | { |
0655fa4d | 747 | return http->out.size == 0; |
c8be6d7b | 748 | } |
749 | ||
528b2c61 | 750 | size_t |
47f6e231 | 751 | ClientSocketContext::lengthToSend(Range<int64_t> const &available) |
528b2c61 | 752 | { |
47f6e231 | 753 | /*the size of available range can always fit in a size_t type*/ |
754 | size_t maximum = (size_t)available.size(); | |
2512d159 | 755 | |
528b2c61 | 756 | if (!http->request->range) |
62e76326 | 757 | return maximum; |
758 | ||
528b2c61 | 759 | assert (canPackMoreRanges()); |
62e76326 | 760 | |
528b2c61 | 761 | if (http->range_iter.debt() == -1) |
62e76326 | 762 | return maximum; |
763 | ||
528b2c61 | 764 | assert (http->range_iter.debt() > 0); |
62e76326 | 765 | |
2512d159 | 766 | /* TODO this + the last line could be a range intersection calculation */ |
47f6e231 | 767 | if (available.start < http->range_iter.currentSpec()->offset) |
2512d159 | 768 | return 0; |
769 | ||
47f6e231 | 770 | return XMIN(http->range_iter.debt(), (int64_t)maximum); |
528b2c61 | 771 | } |
772 | ||
c8be6d7b | 773 | void |
528b2c61 | 774 | ClientSocketContext::noteSentBodyBytes(size_t bytes) |
775 | { | |
776 | http->out.offset += bytes; | |
62e76326 | 777 | |
528b2c61 | 778 | if (!http->request->range) |
62e76326 | 779 | return; |
780 | ||
528b2c61 | 781 | if (http->range_iter.debt() != -1) { |
62e76326 | 782 | http->range_iter.debt(http->range_iter.debt() - bytes); |
783 | assert (http->range_iter.debt() >= 0); | |
528b2c61 | 784 | } |
62e76326 | 785 | |
dd272b8e | 786 | /* debt() always stops at -1, below that is a bug */ |
787 | assert (http->range_iter.debt() >= -1); | |
528b2c61 | 788 | } |
62e76326 | 789 | |
528b2c61 | 790 | bool |
791 | ClientHttpRequest::multipartRangeRequest() const | |
792 | { | |
793 | return request->multipartRangeRequest(); | |
794 | } | |
795 | ||
796 | bool | |
797 | ClientSocketContext::multipartRangeRequest() const | |
798 | { | |
799 | return http->multipartRangeRequest(); | |
800 | } | |
801 | ||
802 | void | |
803 | ClientSocketContext::sendBody(HttpReply * rep, StoreIOBuffer bodyData) | |
c8be6d7b | 804 | { |
805 | assert(rep == NULL); | |
528b2c61 | 806 | |
807 | if (!multipartRangeRequest()) { | |
2512d159 | 808 | size_t length = lengthToSend(bodyData.range()); |
62e76326 | 809 | noteSentBodyBytes (length); |
2b663917 | 810 | comm_write(fd(), bodyData.data, length, clientWriteBodyComplete, this, NULL); |
62e76326 | 811 | return; |
528b2c61 | 812 | } |
813 | ||
814 | MemBuf mb; | |
2fe7eff9 | 815 | mb.init(); |
2512d159 | 816 | packRange(bodyData, &mb); |
817 | ||
032785bf | 818 | if (mb.contentSize()) |
2512d159 | 819 | /* write */ |
2b663917 | 820 | comm_write_mbuf(fd(), &mb, clientWriteComplete, this); |
2512d159 | 821 | else |
822 | writeComplete(fd(), NULL, 0, COMM_OK); | |
c8be6d7b | 823 | } |
824 | ||
528b2c61 | 825 | /* put terminating boundary for multiparts */ |
826 | static void | |
30abd221 | 827 | clientPackTermBound(String boundary, MemBuf * mb) |
528b2c61 | 828 | { |
30abd221 | 829 | mb->Printf("\r\n--%s--\r\n", boundary.buf()); |
4a7a3d56 | 830 | debugs(33, 6, "clientPackTermBound: buf offset: " << mb->size); |
528b2c61 | 831 | } |
832 | ||
833 | /* appends a "part" HTTP header (as in a multi-part/range reply) to the buffer */ | |
834 | static void | |
30abd221 | 835 | clientPackRangeHdr(const HttpReply * rep, const HttpHdrRangeSpec * spec, String boundary, MemBuf * mb) |
528b2c61 | 836 | { |
75faaa7a | 837 | HttpHeader hdr(hoReply); |
528b2c61 | 838 | Packer p; |
839 | assert(rep); | |
840 | assert(spec); | |
841 | ||
842 | /* put boundary */ | |
30abd221 | 843 | debugs(33, 5, "clientPackRangeHdr: appending boundary: " << |
844 | boundary.buf()); | |
528b2c61 | 845 | /* rfc2046 requires to _prepend_ boundary with <crlf>! */ |
30abd221 | 846 | mb->Printf("\r\n--%s\r\n", boundary.buf()); |
528b2c61 | 847 | |
848 | /* stuff the header with required entries and pack it */ | |
62e76326 | 849 | |
a9925b40 | 850 | if (rep->header.has(HDR_CONTENT_TYPE)) |
851 | hdr.putStr(HDR_CONTENT_TYPE, rep->header.getStr(HDR_CONTENT_TYPE)); | |
62e76326 | 852 | |
528b2c61 | 853 | httpHeaderAddContRange(&hdr, *spec, rep->content_length); |
62e76326 | 854 | |
528b2c61 | 855 | packerToMemInit(&p, mb); |
62e76326 | 856 | |
a9925b40 | 857 | hdr.packInto(&p); |
62e76326 | 858 | |
528b2c61 | 859 | packerClean(&p); |
62e76326 | 860 | |
519e0948 | 861 | hdr.clean(); |
528b2c61 | 862 | |
863 | /* append <crlf> (we packed a header, not a reply) */ | |
2fe7eff9 | 864 | mb->Printf("\r\n"); |
528b2c61 | 865 | } |
866 | ||
867 | /* | |
868 | * extracts a "range" from *buf and appends them to mb, updating | |
869 | * all offsets and such. | |
870 | */ | |
c8be6d7b | 871 | void |
2512d159 | 872 | ClientSocketContext::packRange(StoreIOBuffer const &source, MemBuf * mb) |
528b2c61 | 873 | { |
874 | HttpHdrRangeIter * i = &http->range_iter; | |
47f6e231 | 875 | Range<int64_t> available (source.range()); |
b65351fa | 876 | char const *buf = source.data; |
62e76326 | 877 | |
2512d159 | 878 | while (i->currentSpec() && available.size()) { |
62e76326 | 879 | const size_t copy_sz = lengthToSend(available); |
62e76326 | 880 | |
2512d159 | 881 | if (copy_sz) { |
882 | /* | |
883 | * intersection of "have" and "need" ranges must not be empty | |
884 | */ | |
885 | assert(http->out.offset < i->currentSpec()->offset + i->currentSpec()->length); | |
886 | assert(http->out.offset + available.size() > (size_t)i->currentSpec()->offset); | |
887 | ||
888 | /* | |
889 | * put boundary and headers at the beginning of a range in a | |
890 | * multi-range | |
891 | */ | |
892 | ||
893 | if (http->multipartRangeRequest() && i->debt() == i->currentSpec()->length) { | |
894 | assert(http->memObject()); | |
895 | clientPackRangeHdr( | |
896 | http->memObject()->getReply(), /* original reply */ | |
897 | i->currentSpec(), /* current range */ | |
898 | i->boundary, /* boundary, the same for all */ | |
899 | mb); | |
900 | } | |
62e76326 | 901 | |
2512d159 | 902 | /* |
903 | * append content | |
904 | */ | |
4a7a3d56 | 905 | debugs(33, 3, "clientPackRange: appending " << copy_sz << " bytes"); |
62e76326 | 906 | |
2512d159 | 907 | noteSentBodyBytes (copy_sz); |
62e76326 | 908 | |
2fe7eff9 | 909 | mb->append(buf, copy_sz); |
62e76326 | 910 | |
2512d159 | 911 | /* |
912 | * update offsets | |
913 | */ | |
914 | available.start += copy_sz; | |
62e76326 | 915 | |
2512d159 | 916 | buf += copy_sz; |
62e76326 | 917 | |
2512d159 | 918 | } |
62e76326 | 919 | |
920 | /* | |
921 | * paranoid check | |
922 | */ | |
2512d159 | 923 | assert(available.size() >= 0 && i->debt() >= 0 || i->debt() == -1); |
62e76326 | 924 | |
c7329b75 | 925 | if (!canPackMoreRanges()) { |
bf8fe701 | 926 | debugs(33, 3, "clientPackRange: Returning because !canPackMoreRanges."); |
c7329b75 | 927 | |
928 | if (i->debt() == 0) | |
929 | /* put terminating boundary for multiparts */ | |
930 | clientPackTermBound(i->boundary, mb); | |
62e76326 | 931 | |
62e76326 | 932 | return; |
c7329b75 | 933 | } |
62e76326 | 934 | |
47f6e231 | 935 | int64_t next = getNextRangeOffset(); |
62e76326 | 936 | |
937 | assert (next >= http->out.offset); | |
938 | ||
939 | size_t skip = next - http->out.offset; | |
940 | ||
2512d159 | 941 | /* adjust for not to be transmitted bytes */ |
942 | http->out.offset = next; | |
943 | ||
944 | if (available.size() <= skip) | |
62e76326 | 945 | return; |
946 | ||
2512d159 | 947 | available.start += skip; |
62e76326 | 948 | |
2512d159 | 949 | buf += skip; |
950 | ||
951 | if (copy_sz == 0) | |
952 | return; | |
528b2c61 | 953 | } |
954 | } | |
955 | ||
956 | /* returns expected content length for multi-range replies | |
957 | * note: assumes that httpHdrRangeCanonize has already been called | |
958 | * warning: assumes that HTTP headers for individual ranges at the | |
959 | * time of the actuall assembly will be exactly the same as | |
960 | * the headers when clientMRangeCLen() is called */ | |
961 | int | |
962 | ClientHttpRequest::mRangeCLen() | |
c8be6d7b | 963 | { |
47f6e231 | 964 | int64_t clen = 0; |
c8be6d7b | 965 | MemBuf mb; |
528b2c61 | 966 | |
86a2f789 | 967 | assert(memObject()); |
528b2c61 | 968 | |
2fe7eff9 | 969 | mb.init(); |
528b2c61 | 970 | HttpHdrRange::iterator pos = request->range->begin(); |
62e76326 | 971 | |
528b2c61 | 972 | while (pos != request->range->end()) { |
62e76326 | 973 | /* account for headers for this range */ |
2fe7eff9 | 974 | mb.reset(); |
86a2f789 | 975 | clientPackRangeHdr(memObject()->getReply(), |
62e76326 | 976 | *pos, range_iter.boundary, &mb); |
977 | clen += mb.size; | |
528b2c61 | 978 | |
62e76326 | 979 | /* account for range content */ |
980 | clen += (*pos)->length; | |
528b2c61 | 981 | |
4a7a3d56 | 982 | debugs(33, 6, "clientMRangeCLen: (clen += " << mb.size << " + " << (*pos)->length << ") == " << clen); |
62e76326 | 983 | ++pos; |
528b2c61 | 984 | } |
62e76326 | 985 | |
528b2c61 | 986 | /* account for the terminating boundary */ |
2fe7eff9 | 987 | mb.reset(); |
62e76326 | 988 | |
528b2c61 | 989 | clientPackTermBound(range_iter.boundary, &mb); |
62e76326 | 990 | |
528b2c61 | 991 | clen += mb.size; |
992 | ||
2fe7eff9 | 993 | mb.clean(); |
62e76326 | 994 | |
528b2c61 | 995 | return clen; |
996 | } | |
997 | ||
998 | /* | |
999 | * returns true if If-Range specs match reply, false otherwise | |
1000 | */ | |
1001 | static int | |
59a1efb2 | 1002 | clientIfRangeMatch(ClientHttpRequest * http, HttpReply * rep) |
528b2c61 | 1003 | { |
a9925b40 | 1004 | const TimeOrTag spec = http->request->header.getTimeOrTag(HDR_IF_RANGE); |
528b2c61 | 1005 | /* check for parsing falure */ |
62e76326 | 1006 | |
528b2c61 | 1007 | if (!spec.valid) |
62e76326 | 1008 | return 0; |
1009 | ||
528b2c61 | 1010 | /* got an ETag? */ |
1011 | if (spec.tag.str) { | |
a9925b40 | 1012 | ETag rep_tag = rep->header.getETag(HDR_ETAG); |
bf8fe701 | 1013 | debugs(33, 3, "clientIfRangeMatch: ETags: " << spec.tag.str << " and " << |
1014 | (rep_tag.str ? rep_tag.str : "<none>")); | |
62e76326 | 1015 | |
1016 | if (!rep_tag.str) | |
1017 | return 0; /* entity has no etag to compare with! */ | |
1018 | ||
1019 | if (spec.tag.weak || rep_tag.weak) { | |
bf8fe701 | 1020 | debugs(33, 1, "clientIfRangeMatch: Weak ETags are not allowed in If-Range: " << spec.tag.str << " ? " << rep_tag.str); |
62e76326 | 1021 | return 0; /* must use strong validator for sub-range requests */ |
1022 | } | |
1023 | ||
1024 | return etagIsEqual(&rep_tag, &spec.tag); | |
528b2c61 | 1025 | } |
62e76326 | 1026 | |
528b2c61 | 1027 | /* got modification time? */ |
1028 | if (spec.time >= 0) { | |
86a2f789 | 1029 | return http->storeEntry()->lastmod <= spec.time; |
528b2c61 | 1030 | } |
62e76326 | 1031 | |
528b2c61 | 1032 | assert(0); /* should not happen */ |
1033 | return 0; | |
1034 | } | |
1035 | ||
1036 | /* generates a "unique" boundary string for multipart responses | |
1037 | * the caller is responsible for cleaning the string */ | |
30abd221 | 1038 | String |
528b2c61 | 1039 | ClientHttpRequest::rangeBoundaryStr() const |
1040 | { | |
1041 | assert(this); | |
1042 | const char *key; | |
30abd221 | 1043 | String b (full_appname_string); |
528b2c61 | 1044 | b.append (":",1); |
86a2f789 | 1045 | key = storeEntry()->getMD5Text(); |
528b2c61 | 1046 | b.append(key, strlen(key)); |
1047 | return b; | |
1048 | } | |
1049 | ||
1050 | /* adds appropriate Range headers if needed */ | |
1051 | void | |
1052 | ClientSocketContext::buildRangeHeader(HttpReply * rep) | |
1053 | { | |
1054 | HttpHeader *hdr = rep ? &rep->header : 0; | |
1055 | const char *range_err = NULL; | |
190154cf | 1056 | HttpRequest *request = http->request; |
528b2c61 | 1057 | assert(request->range); |
1058 | /* check if we still want to do ranges */ | |
62e76326 | 1059 | |
528b2c61 | 1060 | if (!rep) |
62e76326 | 1061 | range_err = "no [parse-able] reply"; |
528b2c61 | 1062 | else if ((rep->sline.status != HTTP_OK) && (rep->sline.status != HTTP_PARTIAL_CONTENT)) |
62e76326 | 1063 | range_err = "wrong status code"; |
1064 | ||
528b2c61 | 1065 | #if 0 |
62e76326 | 1066 | |
a9925b40 | 1067 | else if (hdr->has(HDR_CONTENT_RANGE)) |
62e76326 | 1068 | range_err = "origin server does ranges"; |
1069 | ||
528b2c61 | 1070 | #endif |
62e76326 | 1071 | |
528b2c61 | 1072 | else if (rep->content_length < 0) |
62e76326 | 1073 | range_err = "unknown length"; |
86a2f789 | 1074 | else if (rep->content_length != http->memObject()->getReply()->content_length) |
62e76326 | 1075 | range_err = "INCONSISTENT length"; /* a bug? */ |
96cbbe03 | 1076 | |
1077 | /* hits only - upstream peer determines correct behaviour on misses, and client_side_reply determines | |
1078 | * hits candidates | |
1079 | */ | |
a9925b40 | 1080 | else if (logTypeIsATcpHit(http->logType) && http->request->header.has(HDR_IF_RANGE) && !clientIfRangeMatch(http, rep)) |
62e76326 | 1081 | range_err = "If-Range match failed"; |
528b2c61 | 1082 | else if (!http->request->range->canonize(rep)) |
62e76326 | 1083 | range_err = "canonization failed"; |
528b2c61 | 1084 | else if (http->request->range->isComplex()) |
62e76326 | 1085 | range_err = "too complex range header"; |
62e76326 | 1086 | |
528b2c61 | 1087 | #if 0 |
62e76326 | 1088 | |
528b2c61 | 1089 | else if (!logTypeIsATcpHit(http->logType); && http->request->range->offsetLimitExceeded()) |
62e76326 | 1090 | range_err = "range outside range_offset_limit"; |
1091 | ||
c8be6d7b | 1092 | #endif |
528b2c61 | 1093 | /* get rid of our range specs on error */ |
1094 | if (range_err) { | |
b631f31c | 1095 | /* XXX We do this here because we need canonisation etc. However, this current |
1096 | * code will lead to incorrect store offset requests - the store will have the | |
1097 | * offset data, but we won't be requesting it. | |
1098 | * So, we can either re-request, or generate an error | |
1099 | */ | |
bf8fe701 | 1100 | debugs(33, 3, "clientBuildRangeHeader: will not do ranges: " << range_err << "."); |
00d77d6b | 1101 | delete http->request->range; |
62e76326 | 1102 | http->request->range = NULL; |
c8be6d7b | 1103 | } else { |
3cff087f | 1104 | /* XXX: TODO: Review, this unconditional set may be wrong. - TODO: review. */ |
1105 | httpStatusLineSet(&rep->sline, rep->sline.version, | |
1106 | HTTP_PARTIAL_CONTENT, NULL); | |
fedd1531 | 1107 | // web server responded with a valid, but unexpected range. |
1108 | // will (try-to) forward as-is. | |
1109 | //TODO: we should cope with multirange request/responses | |
1110 | bool replyMatchRequest = rep->content_range != NULL ? | |
1111 | request->range->contains(rep->content_range->spec) : | |
1112 | true; | |
62e76326 | 1113 | const int spec_count = http->request->range->specs.count; |
47f6e231 | 1114 | int64_t actual_clen = -1; |
62e76326 | 1115 | |
47f6e231 | 1116 | debugs(33, 3, "clientBuildRangeHeader: range spec count: " << |
1117 | spec_count << " virgin clen: " << rep->content_length); | |
62e76326 | 1118 | assert(spec_count > 0); |
1119 | /* ETags should not be returned with Partial Content replies? */ | |
a9925b40 | 1120 | hdr->delById(HDR_ETAG); |
62e76326 | 1121 | /* append appropriate header(s) */ |
1122 | ||
1123 | if (spec_count == 1) { | |
fedd1531 | 1124 | if (!replyMatchRequest) { |
1125 | hdr->delById(HDR_CONTENT_RANGE); | |
1126 | hdr->putContRange(rep->content_range); | |
1127 | actual_clen = rep->content_length; | |
1128 | //http->range_iter.pos = rep->content_range->spec.begin(); | |
1129 | (*http->range_iter.pos)->offset = rep->content_range->spec.offset; | |
1130 | (*http->range_iter.pos)->length = rep->content_range->spec.length; | |
1131 | ||
1132 | } else { | |
1133 | HttpHdrRange::iterator pos = http->request->range->begin(); | |
1134 | assert(*pos); | |
1135 | /* append Content-Range */ | |
1136 | ||
1137 | if (!hdr->has(HDR_CONTENT_RANGE)) { | |
1138 | /* No content range, so this was a full object we are | |
1139 | * sending parts of. | |
1140 | */ | |
1141 | httpHeaderAddContRange(hdr, **pos, rep->content_length); | |
1142 | } | |
1143 | ||
1144 | /* set new Content-Length to the actual number of bytes | |
1145 | * transmitted in the message-body */ | |
1146 | actual_clen = (*pos)->length; | |
62e76326 | 1147 | } |
62e76326 | 1148 | } else { |
1149 | /* multipart! */ | |
1150 | /* generate boundary string */ | |
1151 | http->range_iter.boundary = http->rangeBoundaryStr(); | |
1152 | /* delete old Content-Type, add ours */ | |
a9925b40 | 1153 | hdr->delById(HDR_CONTENT_TYPE); |
62e76326 | 1154 | httpHeaderPutStrf(hdr, HDR_CONTENT_TYPE, |
1155 | "multipart/byteranges; boundary=\"%s\"", | |
30abd221 | 1156 | http->range_iter.boundary.buf()); |
62e76326 | 1157 | /* Content-Length is not required in multipart responses |
1158 | * but it is always nice to have one */ | |
1159 | actual_clen = http->mRangeCLen(); | |
2512d159 | 1160 | /* http->out needs to start where we want data at */ |
1161 | http->out.offset = http->range_iter.currentSpec()->offset; | |
62e76326 | 1162 | } |
1163 | ||
1164 | /* replace Content-Length header */ | |
1165 | assert(actual_clen >= 0); | |
1166 | ||
a9925b40 | 1167 | hdr->delById(HDR_CONTENT_LENGTH); |
62e76326 | 1168 | |
47f6e231 | 1169 | hdr->putInt64(HDR_CONTENT_LENGTH, actual_clen); |
62e76326 | 1170 | |
bf8fe701 | 1171 | debugs(33, 3, "clientBuildRangeHeader: actual content length: " << actual_clen); |
62e76326 | 1172 | |
1173 | /* And start the range iter off */ | |
1174 | http->range_iter.updateSpec(); | |
c8be6d7b | 1175 | } |
528b2c61 | 1176 | } |
1177 | ||
1178 | void | |
1179 | ClientSocketContext::prepareReply(HttpReply * rep) | |
1180 | { | |
fedd1531 | 1181 | reply = rep; |
1182 | ||
528b2c61 | 1183 | if (http->request->range) |
62e76326 | 1184 | buildRangeHeader(rep); |
528b2c61 | 1185 | } |
1186 | ||
1187 | void | |
1188 | ClientSocketContext::sendStartOfMessage(HttpReply * rep, StoreIOBuffer bodyData) | |
1189 | { | |
1190 | prepareReply(rep); | |
528b2c61 | 1191 | assert (rep); |
06a5ae20 | 1192 | MemBuf *mb = rep->pack(); |
528b2c61 | 1193 | /* Save length of headers for persistent conn checks */ |
032785bf | 1194 | http->out.headers_sz = mb->contentSize(); |
528b2c61 | 1195 | #if HEADERS_LOG |
62e76326 | 1196 | |
528b2c61 | 1197 | headersLog(0, 0, http->request->method, rep); |
1198 | #endif | |
62e76326 | 1199 | |
c8be6d7b | 1200 | if (bodyData.data && bodyData.length) { |
62e76326 | 1201 | if (!multipartRangeRequest()) { |
2512d159 | 1202 | size_t length = lengthToSend(bodyData.range()); |
62e76326 | 1203 | noteSentBodyBytes (length); |
1204 | ||
2fe7eff9 | 1205 | mb->append(bodyData.data, length); |
62e76326 | 1206 | } else { |
032785bf | 1207 | packRange(bodyData, mb); |
62e76326 | 1208 | } |
c8be6d7b | 1209 | } |
62e76326 | 1210 | |
c8be6d7b | 1211 | /* write */ |
2b663917 | 1212 | comm_write_mbuf(fd(), mb, clientWriteComplete, this); |
62e76326 | 1213 | |
032785bf | 1214 | delete mb; |
c8be6d7b | 1215 | } |
1216 | ||
2246b732 | 1217 | /* |
7dc5f514 | 1218 | * Write a chunk of data to a client socket. If the reply is present, |
1219 | * send the reply headers down the wire too, and clean them up when | |
1220 | * finished. | |
edce4d98 | 1221 | * Pre-condition: |
1222 | * The request is one backed by a connection, not an internal request. | |
1223 | * data context is not NULL | |
1224 | * There are no more entries in the stream chain. | |
2246b732 | 1225 | */ |
edce4d98 | 1226 | static void |
59a1efb2 | 1227 | clientSocketRecipient(clientStreamNode * node, ClientHttpRequest * http, |
62e76326 | 1228 | HttpReply * rep, StoreIOBuffer recievedData) |
edce4d98 | 1229 | { |
1230 | int fd; | |
edce4d98 | 1231 | /* Test preconditions */ |
1232 | assert(node != NULL); | |
559da936 | 1233 | PROF_start(clientSocketRecipient); |
62e76326 | 1234 | /* TODO: handle this rather than asserting |
c8be6d7b | 1235 | * - it should only ever happen if we cause an abort and |
edce4d98 | 1236 | * the callback chain loops back to here, so we can simply return. |
1237 | * However, that itself shouldn't happen, so it stays as an assert for now. | |
1238 | */ | |
1239 | assert(cbdataReferenceValid(node)); | |
edce4d98 | 1240 | assert(node->node.next == NULL); |
0655fa4d | 1241 | ClientSocketContext::Pointer context = dynamic_cast<ClientSocketContext *>(node->data.getRaw()); |
94a396a3 | 1242 | assert(context != NULL); |
98242069 | 1243 | assert(connIsUsable(http->getConn())); |
1244 | fd = http->getConn()->fd; | |
528b2c61 | 1245 | /* TODO: check offset is what we asked for */ |
62e76326 | 1246 | |
98242069 | 1247 | if (context != http->getConn()->getCurrentContext()) { |
62e76326 | 1248 | context->deferRecipientForLater(node, rep, recievedData); |
559da936 | 1249 | PROF_stop(clientSocketRecipient); |
62e76326 | 1250 | return; |
edce4d98 | 1251 | } |
62e76326 | 1252 | |
c8be6d7b | 1253 | if (responseFinishedOrFailed(rep, recievedData)) { |
0655fa4d | 1254 | context->writeComplete(fd, NULL, 0, COMM_OK); |
559da936 | 1255 | PROF_stop(clientSocketRecipient); |
62e76326 | 1256 | return; |
edce4d98 | 1257 | } |
62e76326 | 1258 | |
0655fa4d | 1259 | if (!context->startOfOutput()) |
62e76326 | 1260 | context->sendBody(rep, recievedData); |
7684c4b1 | 1261 | else { |
a4785954 | 1262 | assert(rep); |
90a8964c | 1263 | http->al.reply = HTTPMSGLOCK(rep); |
62e76326 | 1264 | context->sendStartOfMessage(rep, recievedData); |
7684c4b1 | 1265 | } |
fc68f6b1 | 1266 | |
559da936 | 1267 | PROF_stop(clientSocketRecipient); |
edce4d98 | 1268 | } |
1269 | ||
62e76326 | 1270 | /* Called when a downstream node is no longer interested in |
edce4d98 | 1271 | * our data. As we are a terminal node, this means on aborts |
1272 | * only | |
1273 | */ | |
1274 | void | |
59a1efb2 | 1275 | clientSocketDetach(clientStreamNode * node, ClientHttpRequest * http) |
edce4d98 | 1276 | { |
edce4d98 | 1277 | /* Test preconditions */ |
1278 | assert(node != NULL); | |
62e76326 | 1279 | /* TODO: handle this rather than asserting |
c8be6d7b | 1280 | * - it should only ever happen if we cause an abort and |
edce4d98 | 1281 | * the callback chain loops back to here, so we can simply return. |
1282 | * However, that itself shouldn't happen, so it stays as an assert for now. | |
1283 | */ | |
1284 | assert(cbdataReferenceValid(node)); | |
1285 | /* Set null by ContextFree */ | |
edce4d98 | 1286 | assert(node->node.next == NULL); |
0655fa4d | 1287 | /* this is the assert discussed above */ |
e4a67a80 | 1288 | assert(NULL == dynamic_cast<ClientSocketContext *>(node->data.getRaw())); |
edce4d98 | 1289 | /* We are only called when the client socket shutsdown. |
1290 | * Tell the prev pipeline member we're finished | |
1291 | */ | |
1292 | clientStreamDetach(node, http); | |
7a2f978b | 1293 | } |
1294 | ||
f4f278b5 | 1295 | static void |
25f651c1 | 1296 | clientWriteBodyComplete(int fd, char *buf, size_t size, comm_err_t errflag, int xerrno, void *data) |
f4f278b5 | 1297 | { |
2b663917 | 1298 | clientWriteComplete(fd, NULL, size, errflag, xerrno, data); |
c8be6d7b | 1299 | } |
1300 | ||
1301 | void | |
a46d2c0e | 1302 | ConnStateData::readNextRequest() |
c8be6d7b | 1303 | { |
bf8fe701 | 1304 | debugs(33, 5, "ConnStateData::readNextRequest: FD " << fd << " reading next req"); |
1305 | ||
a46d2c0e | 1306 | fd_note(fd, "Waiting for next request"); |
f4f278b5 | 1307 | /* |
c8be6d7b | 1308 | * Set the timeout BEFORE calling clientReadRequest(). |
1309 | */ | |
a46d2c0e | 1310 | commSetTimeout(fd, Config.Timeout.persistent_request, |
1311 | requestTimeout, this); | |
1312 | readSomeData(); | |
c4b7a5a9 | 1313 | /* Please don't do anything with the FD past here! */ |
c8be6d7b | 1314 | } |
1315 | ||
1316 | void | |
a2ac85d9 | 1317 | ClientSocketContextPushDeferredIfNeeded(ClientSocketContext::Pointer deferredRequest, ConnStateData::Pointer & conn) |
c8be6d7b | 1318 | { |
bf8fe701 | 1319 | debugs(33, 2, "ClientSocketContextPushDeferredIfNeeded: FD " << conn->fd << " Sending next"); |
1320 | ||
c8be6d7b | 1321 | /* If the client stream is waiting on a socket write to occur, then */ |
62e76326 | 1322 | |
c8be6d7b | 1323 | if (deferredRequest->flags.deferred) { |
62e76326 | 1324 | /* NO data is allowed to have been sent */ |
1325 | assert(deferredRequest->http->out.size == 0); | |
1326 | clientSocketRecipient(deferredRequest->deferredparams.node, | |
1327 | deferredRequest->http, | |
1328 | deferredRequest->deferredparams.rep, | |
1329 | deferredRequest->deferredparams.queuedBuffer); | |
c8be6d7b | 1330 | } |
62e76326 | 1331 | |
c8be6d7b | 1332 | /* otherwise, the request is still active in a callbacksomewhere, |
1333 | * and we are done | |
f4f278b5 | 1334 | */ |
f4f278b5 | 1335 | } |
1336 | ||
0655fa4d | 1337 | void |
1338 | ClientSocketContext::keepaliveNextRequest() | |
1a92a1e2 | 1339 | { |
a2ac85d9 | 1340 | ConnStateData::Pointer conn = http->getConn(); |
f900210a | 1341 | bool do_next_read = false; |
bd4e6ec8 | 1342 | |
bf8fe701 | 1343 | debugs(33, 3, "ClientSocketContext::keepaliveNextRequest: FD " << conn->fd); |
0655fa4d | 1344 | connIsFinished(); |
1345 | ||
f900210a | 1346 | /* |
1347 | * Attempt to parse a request from the request buffer. | |
1348 | * If we've been fed a pipelined request it may already | |
1349 | * be in our read buffer. | |
1350 | * | |
1351 | * This needs to fall through - if we're unlucky and parse the _last_ request | |
1352 | * from our read buffer we may never re-register for another client read. | |
1353 | */ | |
1354 | ||
1355 | if (clientParseRequest(conn, do_next_read)) { | |
bf8fe701 | 1356 | debugs(33, 3, "clientSocketContext::keepaliveNextRequest: FD " << conn->fd << ": parsed next request from buffer"); |
f900210a | 1357 | } |
1358 | ||
1359 | /* | |
1360 | * Either we need to kick-start another read or, if we have | |
1361 | * a half-closed connection, kill it after the last request. | |
1362 | * This saves waiting for half-closed connections to finished being | |
1363 | * half-closed _AND_ then, sometimes, spending "Timeout" time in | |
1364 | * the keepalive "Waiting for next request" state. | |
1365 | */ | |
1366 | if (commIsHalfClosed(conn->fd) && (conn->getConcurrentRequestCount() == 0)) { | |
bf8fe701 | 1367 | debugs(33, 3, "ClientSocketContext::keepaliveNextRequest: half-closed client with no pending requests, closing"); |
f900210a | 1368 | comm_close(conn->fd); |
1369 | return; | |
1370 | } | |
1371 | ||
0655fa4d | 1372 | ClientSocketContext::Pointer deferredRequest; |
62e76326 | 1373 | |
f900210a | 1374 | /* |
1375 | * At this point we either have a parsed request (which we've | |
1376 | * kicked off the processing for) or not. If we have a deferred | |
1377 | * request (parsed but deferred for pipeling processing reasons) | |
1378 | * then look at processing it. If not, simply kickstart | |
1379 | * another read. | |
1380 | */ | |
1381 | ||
1382 | if ((deferredRequest = conn->getCurrentContext()).getRaw()) { | |
bf8fe701 | 1383 | debugs(33, 3, "ClientSocketContext:: FD " << conn->fd << ": calling PushDeferredIfNeeded"); |
62e76326 | 1384 | ClientSocketContextPushDeferredIfNeeded(deferredRequest, conn); |
f900210a | 1385 | } else { |
bf8fe701 | 1386 | debugs(33, 3, "ClientSocketContext:: FD " << conn->fd << ": calling conn->readNextRequest()"); |
f900210a | 1387 | conn->readNextRequest(); |
1388 | } | |
1a92a1e2 | 1389 | } |
1390 | ||
c8be6d7b | 1391 | void |
1392 | clientUpdateSocketStats(log_type logType, size_t size) | |
1393 | { | |
1394 | if (size == 0) | |
62e76326 | 1395 | return; |
1396 | ||
c8be6d7b | 1397 | kb_incr(&statCounter.client_http.kbytes_out, size); |
62e76326 | 1398 | |
c8be6d7b | 1399 | if (logTypeIsATcpHit(logType)) |
62e76326 | 1400 | kb_incr(&statCounter.client_http.hit_kbytes_out, size); |
c8be6d7b | 1401 | } |
1402 | ||
528b2c61 | 1403 | /* returns true if there is still data available to pack more ranges |
1404 | * increments iterator "i" | |
1405 | * used by clientPackMoreRanges */ | |
1406 | bool | |
1407 | ClientSocketContext::canPackMoreRanges() const | |
1408 | { | |
1409 | /* first update "i" if needed */ | |
62e76326 | 1410 | |
528b2c61 | 1411 | if (!http->range_iter.debt()) { |
bf8fe701 | 1412 | debugs(33, 5, "ClientSocketContext::canPackMoreRanges: At end of current range spec for FD " << |
1413 | fd()); | |
62e76326 | 1414 | |
1415 | if (http->range_iter.pos.incrementable()) | |
1416 | ++http->range_iter.pos; | |
1417 | ||
1418 | http->range_iter.updateSpec(); | |
528b2c61 | 1419 | } |
62e76326 | 1420 | |
528b2c61 | 1421 | assert(!http->range_iter.debt() == !http->range_iter.currentSpec()); |
1422 | /* paranoid sync condition */ | |
1423 | /* continue condition: need_more_data */ | |
bf8fe701 | 1424 | debugs(33, 5, "ClientSocketContext::canPackMoreRanges: returning " << (http->range_iter.currentSpec() ? true : false)); |
528b2c61 | 1425 | return http->range_iter.currentSpec() ? true : false; |
1426 | } | |
1427 | ||
47f6e231 | 1428 | int64_t |
528b2c61 | 1429 | ClientSocketContext::getNextRangeOffset() const |
1430 | { | |
1431 | if (http->request->range) { | |
62e76326 | 1432 | /* offset in range specs does not count the prefix of an http msg */ |
47f6e231 | 1433 | debugs (33, 5, "ClientSocketContext::getNextRangeOffset: http offset " << http->out.offset); |
62e76326 | 1434 | /* check: reply was parsed and range iterator was initialized */ |
1435 | assert(http->range_iter.valid); | |
1436 | /* filter out data according to range specs */ | |
1437 | assert (canPackMoreRanges()); | |
1438 | { | |
47f6e231 | 1439 | int64_t start; /* offset of still missing data */ |
62e76326 | 1440 | assert(http->range_iter.currentSpec()); |
1441 | start = http->range_iter.currentSpec()->offset + http->range_iter.currentSpec()->length - http->range_iter.debt(); | |
47f6e231 | 1442 | debugs(33, 3, "clientPackMoreRanges: in: offset: " << http->out.offset); |
1443 | debugs(33, 3, "clientPackMoreRanges: out:" | |
1444 | " start: " << start << | |
1445 | " spec[" << http->range_iter.pos - http->request->range->begin() << "]:" << | |
1446 | " [" << http->range_iter.currentSpec()->offset << | |
1447 | ", " << http->range_iter.currentSpec()->offset + http->range_iter.currentSpec()->length << ")," | |
1448 | " len: " << http->range_iter.currentSpec()->length << | |
1449 | " debt: " << http->range_iter.debt()); | |
62e76326 | 1450 | if (http->range_iter.currentSpec()->length != -1) |
1451 | assert(http->out.offset <= start); /* we did not miss it */ | |
1452 | ||
1453 | return start; | |
1454 | } | |
1455 | ||
fedd1531 | 1456 | } else if (reply && reply->content_range) { |
1457 | /* request does not have ranges, but reply does */ | |
1458 | //FIXME: should use range_iter_pos on reply, as soon as reply->content_range | |
1459 | // becomes HttpHdrRange rather than HttpHdrRangeSpec. | |
1460 | return http->out.offset + reply->content_range->spec.offset; | |
528b2c61 | 1461 | } |
1462 | ||
1463 | return http->out.offset; | |
1464 | } | |
1465 | ||
c8be6d7b | 1466 | void |
528b2c61 | 1467 | ClientSocketContext::pullData() |
c8be6d7b | 1468 | { |
bf8fe701 | 1469 | debugs(33, 5, "ClientSocketContext::pullData: FD " << fd() << " attempting to pull upstream data"); |
1470 | ||
c8be6d7b | 1471 | /* More data will be coming from the stream. */ |
528b2c61 | 1472 | StoreIOBuffer readBuffer; |
1473 | /* XXX: Next requested byte in the range sequence */ | |
1474 | /* XXX: length = getmaximumrangelenfgth */ | |
1475 | readBuffer.offset = getNextRangeOffset(); | |
c8be6d7b | 1476 | readBuffer.length = HTTP_REQBUF_SZ; |
528b2c61 | 1477 | readBuffer.data = reqbuf; |
1478 | /* we may note we have reached the end of the wanted ranges */ | |
1479 | clientStreamRead(getTail(), http, readBuffer); | |
1480 | } | |
1481 | ||
62e76326 | 1482 | clientStream_status_t |
528b2c61 | 1483 | ClientSocketContext::socketState() |
1484 | { | |
1485 | switch (clientStreamStatus(getTail(), http)) { | |
62e76326 | 1486 | |
1487 | case STREAM_NONE: | |
528b2c61 | 1488 | /* check for range support ending */ |
62e76326 | 1489 | |
528b2c61 | 1490 | if (http->request->range) { |
62e76326 | 1491 | /* check: reply was parsed and range iterator was initialized */ |
1492 | assert(http->range_iter.valid); | |
1493 | /* filter out data according to range specs */ | |
1494 | ||
1495 | if (!canPackMoreRanges()) { | |
bf8fe701 | 1496 | debugs(33, 5, "ClientSocketContext::socketState: Range request has hit end of returnable range sequence on FD " << |
1497 | fd()); | |
62e76326 | 1498 | |
1499 | if (http->request->flags.proxy_keepalive) | |
1500 | return STREAM_COMPLETE; | |
1501 | else | |
1502 | return STREAM_UNPLANNED_COMPLETE; | |
1503 | } | |
fedd1531 | 1504 | } else if (reply && reply->content_range) { |
1505 | /* reply has content-range, but request did not */ | |
1506 | ||
1507 | if (http->memObject()->endOffset() <= | |
1508 | reply->content_range->spec.offset + reply->content_range->spec.length) { | |
1509 | if (http->request->flags.proxy_keepalive) | |
1510 | return STREAM_COMPLETE; | |
1511 | else | |
1512 | return STREAM_UNPLANNED_COMPLETE; | |
1513 | } | |
62e76326 | 1514 | } |
1515 | ||
1516 | return STREAM_NONE; | |
1517 | ||
1518 | case STREAM_COMPLETE: | |
528b2c61 | 1519 | return STREAM_COMPLETE; |
62e76326 | 1520 | |
1521 | case STREAM_UNPLANNED_COMPLETE: | |
1522 | return STREAM_UNPLANNED_COMPLETE; | |
1523 | ||
1524 | case STREAM_FAILED: | |
1525 | return STREAM_FAILED; | |
528b2c61 | 1526 | } |
62e76326 | 1527 | |
528b2c61 | 1528 | fatal ("unreachable code\n"); |
1529 | return STREAM_NONE; | |
c8be6d7b | 1530 | } |
edce4d98 | 1531 | |
1532 | /* A write has just completed to the client, or we have just realised there is | |
1533 | * no more data to send. | |
1534 | */ | |
e6ccf245 | 1535 | void |
2b663917 | 1536 | clientWriteComplete(int fd, char *bufnotused, size_t size, comm_err_t errflag, int xerrno, void *data) |
7a2f978b | 1537 | { |
528b2c61 | 1538 | ClientSocketContext *context = (ClientSocketContext *)data; |
0655fa4d | 1539 | context->writeComplete (fd, bufnotused, size, errflag); |
1540 | } | |
1541 | ||
55e44db9 | 1542 | void |
1543 | ClientSocketContext::doClose() | |
1544 | { | |
1545 | comm_close(fd()); | |
1546 | } | |
1547 | ||
1548 | void | |
5f8252d2 | 1549 | ClientSocketContext::initiateClose(const char *reason) |
55e44db9 | 1550 | { |
5f8252d2 | 1551 | debugs(33, 5, HERE << "initiateClose: closing for " << reason); |
fc68f6b1 | 1552 | |
3b299123 | 1553 | if (http != NULL) { |
1554 | ConnStateData::Pointer conn = http->getConn(); | |
1555 | ||
1556 | if (conn != NULL) { | |
5f8252d2 | 1557 | if (const ssize_t expecting = conn->bodySizeLeft()) { |
1558 | debugs(33, 5, HERE << "ClientSocketContext::initiateClose: " << | |
1559 | "closing, but first " << conn << " needs to read " << | |
1560 | expecting << " request body bytes with " << | |
1561 | conn->in.notYetUsed << " notYetUsed"); | |
1562 | ||
1563 | if (conn->closing()) { | |
1564 | debugs(33, 2, HERE << "avoiding double-closing " << conn); | |
1565 | return; | |
1566 | } | |
fc68f6b1 | 1567 | |
3b299123 | 1568 | /* |
1569 | * XXX We assume the reply fits in the TCP transmit | |
1570 | * window. If not the connection may stall while sending | |
1571 | * the reply (before reaching here) if the client does not | |
1572 | * try to read the response while sending the request body. | |
1573 | * As of yet we have not received any complaints indicating | |
1574 | * this may be an issue. | |
55e44db9 | 1575 | */ |
5f8252d2 | 1576 | conn->startClosing(reason); |
fc68f6b1 | 1577 | |
3b299123 | 1578 | return; |
1579 | } | |
1580 | } | |
55e44db9 | 1581 | } |
1582 | ||
1583 | doClose(); | |
1584 | } | |
1585 | ||
0655fa4d | 1586 | void |
1587 | ClientSocketContext::writeComplete(int fd, char *bufnotused, size_t size, comm_err_t errflag) | |
1588 | { | |
86a2f789 | 1589 | StoreEntry *entry = http->storeEntry(); |
7a2f978b | 1590 | http->out.size += size; |
c8be6d7b | 1591 | assert(fd > -1); |
e4049756 | 1592 | debugs(33, 5, "clientWriteComplete: FD " << fd << ", sz " << size << |
1593 | ", err " << errflag << ", off " << http->out.size << ", len " << | |
707fdc47 | 1594 | entry ? entry->objectLen() : 0); |
c8be6d7b | 1595 | clientUpdateSocketStats(http->logType, size); |
55e44db9 | 1596 | assert (this->fd() == fd); |
62e76326 | 1597 | |
5f8252d2 | 1598 | /* Bail out quickly on COMM_ERR_CLOSING - close handlers will tidy up */ |
fc68f6b1 | 1599 | |
5f8252d2 | 1600 | if (errflag == COMM_ERR_CLOSING) |
1601 | return; | |
1602 | ||
c8be6d7b | 1603 | if (errflag || clientHttpRequestStatus(fd, http)) { |
5f8252d2 | 1604 | initiateClose("failure or true request status"); |
62e76326 | 1605 | /* Do we leak here ? */ |
1606 | return; | |
edce4d98 | 1607 | } |
62e76326 | 1608 | |
0655fa4d | 1609 | switch (socketState()) { |
62e76326 | 1610 | |
edce4d98 | 1611 | case STREAM_NONE: |
0655fa4d | 1612 | pullData(); |
62e76326 | 1613 | break; |
1614 | ||
edce4d98 | 1615 | case STREAM_COMPLETE: |
bf8fe701 | 1616 | debugs(33, 5, "clientWriteComplete: FD " << fd << " Keeping Alive"); |
0655fa4d | 1617 | keepaliveNextRequest(); |
62e76326 | 1618 | return; |
1619 | ||
edce4d98 | 1620 | case STREAM_UNPLANNED_COMPLETE: |
62e76326 | 1621 | /* fallthrough */ |
1622 | ||
edce4d98 | 1623 | case STREAM_FAILED: |
5f8252d2 | 1624 | initiateClose("STREAM_UNPLANNED_COMPLETE|STREAM_FAILED"); |
62e76326 | 1625 | return; |
1626 | ||
edce4d98 | 1627 | default: |
62e76326 | 1628 | fatal("Hit unreachable code in clientWriteComplete\n"); |
7a2f978b | 1629 | } |
1630 | } | |
1631 | ||
e6ccf245 | 1632 | extern "C" CSR clientGetMoreData; |
1633 | extern "C" CSS clientReplyStatus; | |
1634 | extern "C" CSD clientReplyDetach; | |
edce4d98 | 1635 | |
528b2c61 | 1636 | static ClientSocketContext * |
a2ac85d9 | 1637 | parseHttpRequestAbort(ConnStateData::Pointer & conn, const char *uri) |
038eb4ed | 1638 | { |
59a1efb2 | 1639 | ClientHttpRequest *http; |
528b2c61 | 1640 | ClientSocketContext *context; |
1641 | StoreIOBuffer tempBuffer; | |
a0355e95 | 1642 | http = new ClientHttpRequest(conn); |
c8be6d7b | 1643 | http->req_sz = conn->in.notYetUsed; |
edce4d98 | 1644 | http->uri = xstrdup(uri); |
c4b7a5a9 | 1645 | setLogUri (http, uri); |
528b2c61 | 1646 | context = ClientSocketContextNew(http); |
c8be6d7b | 1647 | tempBuffer.data = context->reqbuf; |
1648 | tempBuffer.length = HTTP_REQBUF_SZ; | |
edce4d98 | 1649 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, |
0655fa4d | 1650 | clientReplyStatus, new clientReplyContext(http), clientSocketRecipient, |
62e76326 | 1651 | clientSocketDetach, context, tempBuffer); |
edce4d98 | 1652 | return context; |
038eb4ed | 1653 | } |
1654 | ||
c8be6d7b | 1655 | char * |
1656 | skipLeadingSpace(char *aString) | |
1657 | { | |
1658 | char *result = aString; | |
62e76326 | 1659 | |
c8be6d7b | 1660 | while (xisspace(*aString)) |
62e76326 | 1661 | ++aString; |
1662 | ||
c8be6d7b | 1663 | return result; |
1664 | } | |
1665 | ||
d4a04ed5 | 1666 | /* |
1667 | * 'end' defaults to NULL for backwards compatibility | |
1668 | * remove default value if we ever get rid of NULL-terminated | |
1669 | * request buffers. | |
1670 | */ | |
1671 | const char * | |
1672 | findTrailingHTTPVersion(const char *uriAndHTTPVersion, const char *end) | |
c8be6d7b | 1673 | { |
d4a04ed5 | 1674 | if (NULL == end) { |
1675 | end = uriAndHTTPVersion + strcspn(uriAndHTTPVersion, "\r\n"); | |
1676 | assert(end); | |
1677 | } | |
62e76326 | 1678 | |
d4a04ed5 | 1679 | for (; end > uriAndHTTPVersion; end--) { |
1680 | if (*end == '\n' || *end == '\r') | |
62e76326 | 1681 | continue; |
1682 | ||
d4a04ed5 | 1683 | if (xisspace(*end)) { |
1684 | if (strncasecmp(end + 1, "HTTP/", 5) == 0) | |
1685 | return end + 1; | |
62e76326 | 1686 | else |
1687 | break; | |
1688 | } | |
c8be6d7b | 1689 | } |
62e76326 | 1690 | |
3f38a55e | 1691 | return NULL; |
c8be6d7b | 1692 | } |
1693 | ||
c8be6d7b | 1694 | void |
59a1efb2 | 1695 | setLogUri(ClientHttpRequest * http, char const *uri) |
c8be6d7b | 1696 | { |
a46d0227 | 1697 | safe_free(http->log_uri); |
62e76326 | 1698 | |
c8be6d7b | 1699 | if (!stringHasCntl(uri)) |
62e76326 | 1700 | http->log_uri = xstrndup(uri, MAX_URL); |
c8be6d7b | 1701 | else |
62e76326 | 1702 | http->log_uri = xstrndup(rfc1738_escape_unescaped(uri), MAX_URL); |
c8be6d7b | 1703 | } |
1704 | ||
3f38a55e | 1705 | static void |
59a1efb2 | 1706 | prepareAcceleratedURL(ConnStateData::Pointer & conn, ClientHttpRequest *http, char *url, const char *req_hdr) |
62e76326 | 1707 | { |
3f38a55e | 1708 | int vhost = conn->port->vhost; |
1709 | int vport = conn->port->vport; | |
1710 | char *host; | |
c8be6d7b | 1711 | |
3f38a55e | 1712 | http->flags.accel = 1; |
c8be6d7b | 1713 | |
3f38a55e | 1714 | /* BUG: Squid cannot deal with '*' URLs (RFC2616 5.1.2) */ |
c8be6d7b | 1715 | |
34399323 | 1716 | if (strncasecmp(url, "cache_object://", 15) == 0) |
1717 | return; /* already in good shape */ | |
1718 | ||
3f38a55e | 1719 | if (*url != '/') { |
62e76326 | 1720 | if (conn->port->vhost) |
1721 | return; /* already in good shape */ | |
1722 | ||
1723 | /* else we need to ignore the host name */ | |
1724 | url = strstr(url, "//"); | |
1725 | ||
3f38a55e | 1726 | #if SHOULD_REJECT_UNKNOWN_URLS |
62e76326 | 1727 | |
1728 | if (!url) | |
1729 | return parseHttpRequestAbort(conn, "error:invalid-request"); | |
1730 | ||
c8be6d7b | 1731 | #endif |
62e76326 | 1732 | |
1733 | if (url) | |
1734 | url = strchr(url + 2, '/'); | |
1735 | ||
1736 | if (!url) | |
1737 | url = (char *) "/"; | |
3f38a55e | 1738 | } |
1739 | ||
1740 | if (internalCheck(url)) { | |
62e76326 | 1741 | /* prepend our name & port */ |
1742 | http->uri = xstrdup(internalLocalUri(NULL, url)); | |
3f38a55e | 1743 | } else if (vhost && (host = mime_get_header(req_hdr, "Host")) != NULL) { |
62e76326 | 1744 | int url_sz = strlen(url) + 32 + Config.appendDomainLen + |
1745 | strlen(host); | |
1746 | http->uri = (char *)xcalloc(url_sz, 1); | |
1747 | snprintf(http->uri, url_sz, "%s://%s%s", | |
1748 | conn->port->protocol, host, url); | |
bf8fe701 | 1749 | debugs(33, 5, "ACCEL VHOST REWRITE: '" << http->uri << "'"); |
3f38a55e | 1750 | } else if (conn->port->defaultsite) { |
62e76326 | 1751 | int url_sz = strlen(url) + 32 + Config.appendDomainLen + |
1752 | strlen(conn->port->defaultsite); | |
1753 | http->uri = (char *)xcalloc(url_sz, 1); | |
1754 | snprintf(http->uri, url_sz, "%s://%s%s", | |
1755 | conn->port->protocol, conn->port->defaultsite, url); | |
bf8fe701 | 1756 | debugs(33, 5, "ACCEL DEFAULTSITE REWRITE: '" << http->uri <<"'"); |
3f38a55e | 1757 | } else if (vport == -1) { |
62e76326 | 1758 | /* Put the local socket IP address as the hostname. */ |
1759 | int url_sz = strlen(url) + 32 + Config.appendDomainLen; | |
1760 | http->uri = (char *)xcalloc(url_sz, 1); | |
1761 | snprintf(http->uri, url_sz, "%s://%s:%d%s", | |
98242069 | 1762 | http->getConn()->port->protocol, |
1763 | inet_ntoa(http->getConn()->me.sin_addr), | |
1764 | ntohs(http->getConn()->me.sin_port), url); | |
bf8fe701 | 1765 | debugs(33, 5, "ACCEL VPORT REWRITE: '" << http->uri << "'"); |
3f38a55e | 1766 | } else if (vport > 0) { |
62e76326 | 1767 | /* Put the local socket IP address as the hostname, but static port */ |
1768 | int url_sz = strlen(url) + 32 + Config.appendDomainLen; | |
1769 | http->uri = (char *)xcalloc(url_sz, 1); | |
1770 | snprintf(http->uri, url_sz, "%s://%s:%d%s", | |
98242069 | 1771 | http->getConn()->port->protocol, |
1772 | inet_ntoa(http->getConn()->me.sin_addr), | |
62e76326 | 1773 | vport, url); |
bf8fe701 | 1774 | debugs(33, 5, "ACCEL VPORT REWRITE: '" << http->uri << "'"); |
3f38a55e | 1775 | } |
1776 | } | |
1777 | ||
1778 | static void | |
59a1efb2 | 1779 | prepareTransparentURL(ConnStateData::Pointer & conn, ClientHttpRequest *http, char *url, const char *req_hdr) |
62e76326 | 1780 | { |
3f38a55e | 1781 | char *host; |
1782 | ||
d048c262 | 1783 | http->flags.transparent = 1; |
3f38a55e | 1784 | |
1785 | if (*url != '/') | |
62e76326 | 1786 | return; /* already in good shape */ |
3f38a55e | 1787 | |
1788 | /* BUG: Squid cannot deal with '*' URLs (RFC2616 5.1.2) */ | |
1789 | ||
f024c970 | 1790 | if ((host = mime_get_header(req_hdr, "Host")) != NULL) { |
62e76326 | 1791 | int url_sz = strlen(url) + 32 + Config.appendDomainLen + |
1792 | strlen(host); | |
1793 | http->uri = (char *)xcalloc(url_sz, 1); | |
1794 | snprintf(http->uri, url_sz, "%s://%s%s", | |
1795 | conn->port->protocol, host, url); | |
bf8fe701 | 1796 | debugs(33, 5, "TRANSPARENT HOST REWRITE: '" << http->uri <<"'"); |
c8be6d7b | 1797 | } else { |
62e76326 | 1798 | /* Put the local socket IP address as the hostname. */ |
1799 | int url_sz = strlen(url) + 32 + Config.appendDomainLen; | |
1800 | http->uri = (char *)xcalloc(url_sz, 1); | |
1801 | snprintf(http->uri, url_sz, "%s://%s:%d%s", | |
98242069 | 1802 | http->getConn()->port->protocol, |
1803 | inet_ntoa(http->getConn()->me.sin_addr), | |
1804 | ntohs(http->getConn()->me.sin_port), url); | |
bf8fe701 | 1805 | debugs(33, 5, "TRANSPARENT REWRITE: '" << http->uri << "'"); |
c8be6d7b | 1806 | } |
c8be6d7b | 1807 | } |
1808 | ||
7a2f978b | 1809 | /* |
1810 | * parseHttpRequest() | |
1811 | * | |
1812 | * Returns | |
c4b7a5a9 | 1813 | * NULL on incomplete requests |
528b2c61 | 1814 | * a ClientSocketContext structure on success or failure. |
c4b7a5a9 | 1815 | * Sets result->flags.parsed_ok to 0 if failed to parse the request. |
1816 | * Sets result->flags.parsed_ok to 1 if we have a good request. | |
7a2f978b | 1817 | */ |
528b2c61 | 1818 | static ClientSocketContext * |
a5baffba | 1819 | parseHttpRequest(ConnStateData::Pointer & conn, HttpParser *hp, method_t * method_p, HttpVersion *http_ver) |
7a2f978b | 1820 | { |
7a2f978b | 1821 | char *url = NULL; |
1822 | char *req_hdr = NULL; | |
2334c194 | 1823 | char *end; |
c68e9c6b | 1824 | size_t req_sz; |
59a1efb2 | 1825 | ClientHttpRequest *http; |
528b2c61 | 1826 | ClientSocketContext *result; |
1827 | StoreIOBuffer tempBuffer; | |
84cc2635 | 1828 | int r; |
7a2f978b | 1829 | |
6792f0d3 | 1830 | /* pre-set these values to make aborting simpler */ |
6792f0d3 | 1831 | *method_p = METHOD_NONE; |
6792f0d3 | 1832 | |
84cc2635 | 1833 | /* Attempt to parse the first line; this'll define the method, url, version and header begin */ |
1834 | r = HttpParserParseReqLine(hp); | |
fc68f6b1 | 1835 | |
84cc2635 | 1836 | if (r == 0) { |
bf8fe701 | 1837 | debugs(33, 5, "Incomplete request, waiting for end of request line"); |
fc68f6b1 | 1838 | return NULL; |
7a2f978b | 1839 | } |
fc68f6b1 | 1840 | |
84cc2635 | 1841 | if (r == -1) { |
1842 | return parseHttpRequestAbort(conn, "error:invalid-request"); | |
1843 | } | |
fc68f6b1 | 1844 | |
84cc2635 | 1845 | /* Request line is valid here .. */ |
1846 | *http_ver = HttpVersion(hp->v_maj, hp->v_min); | |
62e76326 | 1847 | |
52512f28 | 1848 | /* This call scans the entire request, not just the headers */ |
84cc2635 | 1849 | if (hp->v_maj > 0) { |
a5baffba | 1850 | if ((req_sz = headersEnd(hp->buf, hp->bufsiz)) == 0) { |
bf8fe701 | 1851 | debugs(33, 5, "Incomplete request, waiting for end of headers"); |
62e76326 | 1852 | return NULL; |
1853 | } | |
3f38a55e | 1854 | } else { |
bf8fe701 | 1855 | debugs(33, 3, "parseHttpRequest: Missing HTTP identifier"); |
84cc2635 | 1856 | req_sz = HttpParserReqSz(hp); |
3f38a55e | 1857 | } |
1858 | ||
52512f28 | 1859 | /* We know the whole request is in hp->buf now */ |
1860 | ||
a5baffba | 1861 | assert(req_sz <= (size_t) hp->bufsiz); |
fc68f6b1 | 1862 | |
a5baffba | 1863 | /* Will the following be true with HTTP/0.9 requests? probably not .. */ |
1864 | /* So the rest of the code will need to deal with '0'-byte headers (ie, none, so don't try parsing em) */ | |
1865 | assert(req_sz > 0); | |
fc68f6b1 | 1866 | |
a5baffba | 1867 | hp->hdr_end = req_sz - 1; |
fc68f6b1 | 1868 | |
a5baffba | 1869 | hp->hdr_start = hp->req_end + 1; |
3f38a55e | 1870 | |
5b648f60 | 1871 | /* Enforce max_request_size */ |
5b648f60 | 1872 | if (req_sz >= Config.maxRequestHeaderSize) { |
bf8fe701 | 1873 | debugs(33, 5, "parseHttpRequest: Too large request"); |
5b648f60 | 1874 | return parseHttpRequestAbort(conn, "error:request-too-large"); |
1875 | } | |
1876 | ||
84cc2635 | 1877 | /* Set method_p */ |
1878 | *method_p = HttpRequestMethod(&hp->buf[hp->m_start], &hp->buf[hp->m_end]); | |
fc68f6b1 | 1879 | |
84cc2635 | 1880 | if (*method_p == METHOD_NONE) { |
fc68f6b1 | 1881 | /* XXX need a way to say "this many character length string" */ |
bf8fe701 | 1882 | debugs(33, 1, "clientParseRequestMethod: Unsupported method in request '" << hp->buf << "'"); |
1883 | ||
fc68f6b1 | 1884 | /* XXX where's the method set for this error? */ |
84cc2635 | 1885 | return parseHttpRequestAbort(conn, "error:unsupported-request-method"); |
3f38a55e | 1886 | } |
7a2f978b | 1887 | |
84cc2635 | 1888 | /* set url */ |
1889 | /* | |
1890 | * XXX this should eventually not use a malloc'ed buffer; the transformation code | |
1891 | * below needs to be modified to not expect a mutable nul-terminated string. | |
1892 | */ | |
1893 | url = (char *)xmalloc(hp->u_end - hp->u_start + 16); | |
fc68f6b1 | 1894 | |
84cc2635 | 1895 | memcpy(url, hp->buf + hp->u_start, hp->u_end - hp->u_start + 1); |
fc68f6b1 | 1896 | |
84cc2635 | 1897 | url[hp->u_end - hp->u_start + 1] = '\0'; |
62e76326 | 1898 | |
c68e9c6b | 1899 | /* |
1900 | * Process headers after request line | |
c8be6d7b | 1901 | * TODO: Use httpRequestParse here. |
c68e9c6b | 1902 | */ |
84cc2635 | 1903 | /* XXX this code should be modified to take a const char * later! */ |
1904 | req_hdr = (char *) hp->buf + hp->req_end + 1; | |
fc68f6b1 | 1905 | |
bf8fe701 | 1906 | debugs(33, 3, "parseHttpRequest: req_hdr = {" << req_hdr << "}"); |
fc68f6b1 | 1907 | |
52512f28 | 1908 | end = (char *) hp->buf + hp->hdr_end; |
fc68f6b1 | 1909 | |
bf8fe701 | 1910 | debugs(33, 3, "parseHttpRequest: end = {" << end << "}"); |
99edd1c3 | 1911 | |
47ac2ebe | 1912 | if (strstr(req_hdr, "\r\r\n")) { |
bf8fe701 | 1913 | debugs(33, 1, "WARNING: suspicious HTTP request contains double CR"); |
fc68f6b1 | 1914 | xfree(url); |
47ac2ebe | 1915 | return parseHttpRequestAbort(conn, "error:double-CR"); |
1916 | } | |
1917 | ||
bf8fe701 | 1918 | debugs(33, 3, "parseHttpRequest: prefix_sz = " << |
1919 | (int) HttpParserRequestLen(hp) << ", req_line_sz = " << | |
1920 | HttpParserReqSz(hp)); | |
62e76326 | 1921 | |
7a2f978b | 1922 | /* Ok, all headers are received */ |
a0355e95 | 1923 | http = new ClientHttpRequest(conn); |
62e76326 | 1924 | |
a5baffba | 1925 | http->req_sz = HttpParserRequestLen(hp); |
528b2c61 | 1926 | result = ClientSocketContextNew(http); |
c8be6d7b | 1927 | tempBuffer.data = result->reqbuf; |
1928 | tempBuffer.length = HTTP_REQBUF_SZ; | |
62e76326 | 1929 | |
0655fa4d | 1930 | ClientStreamData newServer = new clientReplyContext(http); |
0655fa4d | 1931 | ClientStreamData newClient = result; |
edce4d98 | 1932 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, |
0655fa4d | 1933 | clientReplyStatus, newServer, clientSocketRecipient, |
1934 | clientSocketDetach, newClient, tempBuffer); | |
62e76326 | 1935 | |
bf8fe701 | 1936 | debugs(33, 5, "parseHttpRequest: Request Header is\n" <<(hp->buf) + hp->hdr_start); |
3f38a55e | 1937 | |
ba9ebd0a | 1938 | #if THIS_VIOLATES_HTTP_SPECS_ON_URL_TRANSFORMATION |
62e76326 | 1939 | |
7a2f978b | 1940 | if ((t = strchr(url, '#'))) /* remove HTML anchors */ |
62e76326 | 1941 | *t = '\0'; |
1942 | ||
ba9ebd0a | 1943 | #endif |
7a2f978b | 1944 | |
3f38a55e | 1945 | /* Rewrite the URL in transparent or accelerator mode */ |
a46d2c0e | 1946 | if (conn->transparent()) { |
62e76326 | 1947 | prepareTransparentURL(conn, http, url, req_hdr); |
3f38a55e | 1948 | } else if (conn->port->accel) { |
62e76326 | 1949 | prepareAcceleratedURL(conn, http, url, req_hdr); |
2f2749d7 | 1950 | } else if (internalCheck(url)) { |
1951 | /* prepend our name & port */ | |
1952 | http->uri = xstrdup(internalLocalUri(NULL, url)); | |
2f2749d7 | 1953 | http->flags.accel = 1; |
3f38a55e | 1954 | } |
1955 | ||
1956 | if (!http->uri) { | |
62e76326 | 1957 | /* No special rewrites have been applied above, use the |
1958 | * requested url. may be rewritten later, so make extra room */ | |
1959 | int url_sz = strlen(url) + Config.appendDomainLen + 5; | |
1960 | http->uri = (char *)xcalloc(url_sz, 1); | |
1961 | strcpy(http->uri, url); | |
3f38a55e | 1962 | } |
62e76326 | 1963 | |
c8be6d7b | 1964 | setLogUri(http, http->uri); |
bf8fe701 | 1965 | debugs(33, 5, "parseHttpRequest: Complete request received"); |
c4b7a5a9 | 1966 | result->flags.parsed_ok = 1; |
84cc2635 | 1967 | xfree(url); |
c8be6d7b | 1968 | return result; |
7a2f978b | 1969 | } |
1970 | ||
c8be6d7b | 1971 | int |
a46d2c0e | 1972 | ConnStateData::getAvailableBufferLength() const |
c8be6d7b | 1973 | { |
1a419b96 | 1974 | int result = in.allocatedSize - in.notYetUsed - 1; |
1975 | assert (result >= 0); | |
1976 | return result; | |
c8be6d7b | 1977 | } |
1978 | ||
1979 | void | |
a46d2c0e | 1980 | ConnStateData::makeSpaceAvailable() |
c8be6d7b | 1981 | { |
a46d2c0e | 1982 | if (getAvailableBufferLength() < 2) { |
1983 | in.buf = (char *)memReallocBuf(in.buf, in.allocatedSize * 2, &in.allocatedSize); | |
4a7a3d56 | 1984 | debugs(33, 2, "growing request buffer: notYetUsed=" << in.notYetUsed << " size=" << in.allocatedSize); |
c8be6d7b | 1985 | } |
1986 | } | |
1987 | ||
1988 | void | |
0655fa4d | 1989 | ConnStateData::addContextToQueue(ClientSocketContext * context) |
c8be6d7b | 1990 | { |
0655fa4d | 1991 | ClientSocketContext::Pointer *S; |
62e76326 | 1992 | |
0655fa4d | 1993 | for (S = (ClientSocketContext::Pointer *) & currentobject; S->getRaw(); |
62e76326 | 1994 | S = &(*S)->next) |
1995 | ||
1996 | ; | |
c8be6d7b | 1997 | *S = context; |
62e76326 | 1998 | |
0655fa4d | 1999 | ++nrequests; |
c8be6d7b | 2000 | } |
2001 | ||
2002 | int | |
0655fa4d | 2003 | ConnStateData::getConcurrentRequestCount() const |
c8be6d7b | 2004 | { |
2005 | int result = 0; | |
0655fa4d | 2006 | ClientSocketContext::Pointer *T; |
62e76326 | 2007 | |
0655fa4d | 2008 | for (T = (ClientSocketContext::Pointer *) ¤tobject; |
2009 | T->getRaw(); T = &(*T)->next, ++result) | |
62e76326 | 2010 | |
2011 | ; | |
c8be6d7b | 2012 | return result; |
2013 | } | |
2014 | ||
2015 | int | |
a2ac85d9 | 2016 | connReadWasError(ConnStateData::Pointer & conn, comm_err_t flag, int size, int xerrno) |
c8be6d7b | 2017 | { |
c4b7a5a9 | 2018 | if (flag != COMM_OK) { |
bf8fe701 | 2019 | debugs(33, 2, "connReadWasError: FD " << conn->fd << ": got flag " << flag); |
62e76326 | 2020 | return 1; |
c4b7a5a9 | 2021 | } |
62e76326 | 2022 | |
c8be6d7b | 2023 | if (size < 0) { |
f3400a93 | 2024 | if (!ignoreErrno(xerrno)) { |
bf8fe701 | 2025 | debugs(33, 2, "connReadWasError: FD " << conn->fd << ": " << xstrerr(xerrno)); |
62e76326 | 2026 | return 1; |
2027 | } else if (conn->in.notYetUsed == 0) { | |
bf8fe701 | 2028 | debugs(33, 2, "connReadWasError: FD " << conn->fd << ": no data to process (" << xstrerr(xerrno) << ")"); |
62e76326 | 2029 | } |
c8be6d7b | 2030 | } |
62e76326 | 2031 | |
c8be6d7b | 2032 | return 0; |
2033 | } | |
2034 | ||
2035 | int | |
a2ac85d9 | 2036 | connFinishedWithConn(ConnStateData::Pointer & conn, int size) |
c8be6d7b | 2037 | { |
2038 | if (size == 0) { | |
0655fa4d | 2039 | if (conn->getConcurrentRequestCount() == 0 && conn->in.notYetUsed == 0) { |
62e76326 | 2040 | /* no current or pending requests */ |
bf8fe701 | 2041 | debugs(33, 4, "connFinishedWithConn: FD " << conn->fd << " closed"); |
62e76326 | 2042 | return 1; |
2043 | } else if (!Config.onoff.half_closed_clients) { | |
2044 | /* admin doesn't want to support half-closed client sockets */ | |
bf8fe701 | 2045 | debugs(33, 3, "connFinishedWithConn: FD " << conn->fd << " aborted (half_closed_clients disabled)"); |
62e76326 | 2046 | return 1; |
2047 | } | |
c8be6d7b | 2048 | } |
62e76326 | 2049 | |
c8be6d7b | 2050 | return 0; |
2051 | } | |
2052 | ||
2053 | void | |
3b299123 | 2054 | connNoteUseOfBuffer(ConnStateData* conn, size_t byteCount) |
c8be6d7b | 2055 | { |
2056 | assert(byteCount > 0 && byteCount <= conn->in.notYetUsed); | |
2057 | conn->in.notYetUsed -= byteCount; | |
d5fa7219 | 2058 | debugs(33, 5, HERE << "conn->in.notYetUsed = " << conn->in.notYetUsed); |
c8be6d7b | 2059 | /* |
2060 | * If there is still data that will be used, | |
2061 | * move it to the beginning. | |
2062 | */ | |
62e76326 | 2063 | |
c8be6d7b | 2064 | if (conn->in.notYetUsed > 0) |
62e76326 | 2065 | xmemmove(conn->in.buf, conn->in.buf + byteCount, |
2066 | conn->in.notYetUsed); | |
c8be6d7b | 2067 | } |
2068 | ||
2069 | int | |
a2ac85d9 | 2070 | connKeepReadingIncompleteRequest(ConnStateData::Pointer & conn) |
c8be6d7b | 2071 | { |
2072 | return conn->in.notYetUsed >= Config.maxRequestHeaderSize ? 0 : 1; | |
2073 | } | |
2074 | ||
2075 | void | |
a2ac85d9 | 2076 | connCancelIncompleteRequests(ConnStateData::Pointer & conn) |
c8be6d7b | 2077 | { |
528b2c61 | 2078 | ClientSocketContext *context = parseHttpRequestAbort(conn, "error:request-too-large"); |
2079 | clientStreamNode *node = context->getClientReplyContext(); | |
c8be6d7b | 2080 | assert(!connKeepReadingIncompleteRequest(conn)); |
4a7a3d56 | 2081 | debugs(33, 1, "Request header is too large (" << conn->in.notYetUsed << " bytes)"); |
2082 | debugs(33, 1, "Config 'request_header_max_size'= " << Config.maxRequestHeaderSize << " bytes."); | |
0655fa4d | 2083 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2084 | assert (repContext); | |
2085 | repContext->setReplyToError(ERR_TOO_BIG, | |
2086 | HTTP_REQUEST_ENTITY_TOO_LARGE, METHOD_NONE, NULL, | |
2087 | &conn->peer.sin_addr, NULL, NULL, NULL); | |
2088 | context->registerWithConn(); | |
528b2c61 | 2089 | context->pullData(); |
c8be6d7b | 2090 | } |
2091 | ||
7a2f978b | 2092 | static void |
a2ac85d9 | 2093 | clientMaybeReadData(ConnStateData::Pointer &conn, int do_next_read) |
7a2f978b | 2094 | { |
c4b7a5a9 | 2095 | if (do_next_read) { |
48962ba8 | 2096 | conn->flags.readMoreRequests = true; |
a46d2c0e | 2097 | conn->readSomeData(); |
c4b7a5a9 | 2098 | } |
2099 | } | |
2100 | ||
2101 | static void | |
a2ac85d9 | 2102 | clientAfterReadingRequests(int fd, ConnStateData::Pointer &conn, int do_next_read) |
c4b7a5a9 | 2103 | { |
3b299123 | 2104 | /* |
2105 | * If (1) we are reading a message body, (2) and the connection | |
2106 | * is half-closed, and (3) we didn't get the entire HTTP request | |
2107 | * yet, then close this connection. | |
2108 | */ | |
62e76326 | 2109 | |
3b299123 | 2110 | if (fd_table[fd].flags.socket_eof) { |
2111 | if ((ssize_t) conn->in.notYetUsed < conn->bodySizeLeft()) { | |
62e76326 | 2112 | /* Partial request received. Abort client connection! */ |
bf8fe701 | 2113 | debugs(33, 3, "clientAfterReadingRequests: FD " << fd << " aborted, partial request"); |
62e76326 | 2114 | comm_close(fd); |
2115 | return; | |
2116 | } | |
c4b7a5a9 | 2117 | } |
2118 | ||
2119 | clientMaybeReadData (conn, do_next_read); | |
2120 | } | |
2121 | ||
c4b7a5a9 | 2122 | static void |
a5baffba | 2123 | clientProcessRequest(ConnStateData::Pointer &conn, HttpParser *hp, ClientSocketContext *context, method_t method, HttpVersion http_ver) |
c4b7a5a9 | 2124 | { |
59a1efb2 | 2125 | ClientHttpRequest *http = context->http; |
190154cf | 2126 | HttpRequest *request = NULL; |
5f8252d2 | 2127 | bool notedUseOfBuffer = false; |
2128 | ||
c4b7a5a9 | 2129 | /* We have an initial client stream in place should it be needed */ |
2130 | /* setup our private context */ | |
0655fa4d | 2131 | context->registerWithConn(); |
c4b7a5a9 | 2132 | |
2133 | if (context->flags.parsed_ok == 0) { | |
62e76326 | 2134 | clientStreamNode *node = context->getClientReplyContext(); |
bf8fe701 | 2135 | debugs(33, 1, "clientProcessRequest: Invalid Request"); |
0655fa4d | 2136 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2137 | assert (repContext); | |
2138 | repContext->setReplyToError(ERR_INVALID_REQ, HTTP_BAD_REQUEST, method, NULL, | |
2139 | &conn->peer.sin_addr, NULL, conn->in.buf, NULL); | |
62e76326 | 2140 | assert(context->http->out.offset == 0); |
2141 | context->pullData(); | |
48962ba8 | 2142 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2143 | goto finish; |
c4b7a5a9 | 2144 | } |
2145 | ||
c21ad0f5 | 2146 | if ((request = HttpRequest::CreateFromUrlAndMethod(http->uri, method)) == NULL) { |
62e76326 | 2147 | clientStreamNode *node = context->getClientReplyContext(); |
bf8fe701 | 2148 | debugs(33, 5, "Invalid URL: " << http->uri); |
0655fa4d | 2149 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2150 | assert (repContext); | |
2151 | repContext->setReplyToError( | |
2152 | ERR_INVALID_URL, HTTP_BAD_REQUEST, method, http->uri, | |
2153 | &conn->peer.sin_addr, NULL, NULL, NULL); | |
62e76326 | 2154 | assert(context->http->out.offset == 0); |
2155 | context->pullData(); | |
48962ba8 | 2156 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2157 | goto finish; |
62e76326 | 2158 | } |
c4b7a5a9 | 2159 | |
528b2c61 | 2160 | /* compile headers */ |
2161 | /* we should skip request line! */ | |
666f514b | 2162 | /* XXX should actually know the damned buffer size here */ |
a5baffba | 2163 | if (!request->parseHeader(HttpParserHdrBuf(hp), HttpParserHdrSz(hp))) { |
47ac2ebe | 2164 | clientStreamNode *node = context->getClientReplyContext(); |
bf8fe701 | 2165 | debugs(33, 5, "Failed to parse request headers:\n" << HttpParserHdrBuf(hp)); |
47ac2ebe | 2166 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2167 | assert (repContext); | |
2168 | repContext->setReplyToError( | |
2169 | ERR_INVALID_URL, HTTP_BAD_REQUEST, method, http->uri, | |
2170 | &conn->peer.sin_addr, NULL, NULL, NULL); | |
2171 | assert(context->http->out.offset == 0); | |
2172 | context->pullData(); | |
48962ba8 | 2173 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2174 | goto finish; |
47ac2ebe | 2175 | } |
c4b7a5a9 | 2176 | |
2177 | request->flags.accelerated = http->flags.accel; | |
62e76326 | 2178 | |
d048c262 | 2179 | request->flags.transparent = http->flags.transparent; |
2180 | ||
fc68f6b1 | 2181 | #if LINUX_TPROXY |
2182 | ||
2183 | request->flags.tproxy = conn->port->tproxy; | |
2184 | #endif | |
2185 | ||
30abd221 | 2186 | if (internalCheck(request->urlpath.buf())) { |
f024c970 | 2187 | if (internalHostnameIs(request->host) && |
2188 | request->port == getMyPort()) { | |
2189 | http->flags.internal = 1; | |
30abd221 | 2190 | } else if (Config.onoff.global_internal_static && internalStaticCheck(request->urlpath.buf())) { |
f024c970 | 2191 | xstrncpy(request->host, internalHostname(), |
2192 | SQUIDHOSTNAMELEN); | |
2193 | request->port = getMyPort(); | |
2194 | http->flags.internal = 1; | |
62e76326 | 2195 | } |
f024c970 | 2196 | } |
e72a0ec0 | 2197 | |
f024c970 | 2198 | if (http->flags.internal) { |
2199 | request->protocol = PROTO_HTTP; | |
2200 | request->login[0] = '\0'; | |
c4b7a5a9 | 2201 | } |
2202 | ||
c4b7a5a9 | 2203 | request->flags.internal = http->flags.internal; |
2204 | setLogUri (http, urlCanonicalClean(request)); | |
2205 | request->client_addr = conn->peer.sin_addr; | |
47b0c1fa | 2206 | request->client_port = ntohs(conn->peer.sin_port); |
c4b7a5a9 | 2207 | request->my_addr = conn->me.sin_addr; |
2208 | request->my_port = ntohs(conn->me.sin_port); | |
8ae66e43 | 2209 | request->http_ver = http_ver; |
62e76326 | 2210 | |
c4b7a5a9 | 2211 | if (!urlCheckRequest(request) || |
a9925b40 | 2212 | request->header.has(HDR_TRANSFER_ENCODING)) { |
62e76326 | 2213 | clientStreamNode *node = context->getClientReplyContext(); |
0655fa4d | 2214 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2215 | assert (repContext); | |
2216 | repContext->setReplyToError(ERR_UNSUP_REQ, | |
2217 | HTTP_NOT_IMPLEMENTED, request->method, NULL, | |
2218 | &conn->peer.sin_addr, request, NULL, NULL); | |
62e76326 | 2219 | assert(context->http->out.offset == 0); |
2220 | context->pullData(); | |
48962ba8 | 2221 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2222 | goto finish; |
c4b7a5a9 | 2223 | } |
2224 | ||
2225 | ||
2226 | if (!clientIsContentLengthValid(request)) { | |
62e76326 | 2227 | clientStreamNode *node = context->getClientReplyContext(); |
0655fa4d | 2228 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2229 | assert (repContext); | |
2230 | repContext->setReplyToError(ERR_INVALID_REQ, | |
2231 | HTTP_LENGTH_REQUIRED, request->method, NULL, | |
2232 | &conn->peer.sin_addr, request, NULL, NULL); | |
62e76326 | 2233 | assert(context->http->out.offset == 0); |
2234 | context->pullData(); | |
48962ba8 | 2235 | conn->flags.readMoreRequests = false; |
fc68f6b1 | 2236 | goto finish; |
c4b7a5a9 | 2237 | } |
2238 | ||
6dd9f4bd | 2239 | http->request = HTTPMSGLOCK(request); |
c4b7a5a9 | 2240 | clientSetKeepaliveFlag(http); |
62e76326 | 2241 | |
5f8252d2 | 2242 | /* Do we expect a request-body? */ |
fc68f6b1 | 2243 | |
c4b7a5a9 | 2244 | if (request->content_length > 0) { |
5f8252d2 | 2245 | request->body_pipe = conn->expectRequestBody(request->content_length); |
2246 | ||
2247 | // consume header early so that body pipe gets just the body | |
2248 | connNoteUseOfBuffer(conn.getRaw(), http->req_sz); | |
2249 | notedUseOfBuffer = true; | |
2250 | ||
2251 | conn->handleRequestBodyData(); | |
fc68f6b1 | 2252 | |
5f8252d2 | 2253 | if (!request->body_pipe->exhausted()) |
3b299123 | 2254 | conn->readSomeData(); |
2255 | ||
62e76326 | 2256 | /* Is it too large? */ |
2257 | ||
2258 | if (!clientIsRequestBodyValid(request->content_length) || | |
2259 | clientIsRequestBodyTooLargeForPolicy(request->content_length)) { | |
2260 | clientStreamNode *node = context->getClientReplyContext(); | |
0655fa4d | 2261 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2262 | assert (repContext); | |
2263 | repContext->setReplyToError(ERR_TOO_BIG, | |
2264 | HTTP_REQUEST_ENTITY_TOO_LARGE, METHOD_NONE, NULL, | |
2265 | &conn->peer.sin_addr, http->request, NULL, NULL); | |
62e76326 | 2266 | assert(context->http->out.offset == 0); |
2267 | context->pullData(); | |
48962ba8 | 2268 | conn->flags.readMoreRequests = false; |
5f8252d2 | 2269 | goto finish; |
62e76326 | 2270 | } |
2271 | ||
2272 | context->mayUseConnection(true); | |
c4b7a5a9 | 2273 | } |
2274 | ||
2275 | /* If this is a CONNECT, don't schedule a read - ssl.c will handle it */ | |
2276 | if (http->request->method == METHOD_CONNECT) | |
62e76326 | 2277 | context->mayUseConnection(true); |
2278 | ||
de31d06f | 2279 | http->calloutContext = new ClientRequestContext(http); |
2280 | ||
2281 | http->doCallouts(); | |
52c2c8a8 | 2282 | |
4c29340e | 2283 | finish: |
5f8252d2 | 2284 | if (!notedUseOfBuffer) |
2285 | connNoteUseOfBuffer(conn.getRaw(), http->req_sz); | |
52c2c8a8 | 2286 | |
2287 | /* | |
2288 | * DPW 2007-05-18 | |
2289 | * Moved the TCP_RESET feature from clientReplyContext::sendMoreData | |
2290 | * to here because calling comm_reset_close() causes http to | |
2291 | * be freed and the above connNoteUseOfBuffer() would hit an | |
2292 | * assertion, not to mention that we were accessing freed memory. | |
2293 | */ | |
2294 | if (http->request->flags.resetTCP() && conn->fd > -1) { | |
2295 | debugs(33, 3, HERE << "Sending TCP RST on FD " << conn->fd); | |
2296 | comm_reset_close(conn->fd); | |
2297 | return; | |
2298 | } | |
c4b7a5a9 | 2299 | } |
2300 | ||
2301 | static void | |
a2ac85d9 | 2302 | connStripBufferWhitespace (ConnStateData::Pointer &conn) |
c4b7a5a9 | 2303 | { |
2304 | while (conn->in.notYetUsed > 0 && xisspace(conn->in.buf[0])) { | |
62e76326 | 2305 | xmemmove(conn->in.buf, conn->in.buf + 1, conn->in.notYetUsed - 1); |
2306 | --conn->in.notYetUsed; | |
c4b7a5a9 | 2307 | } |
2308 | } | |
2309 | ||
2310 | static int | |
a2ac85d9 | 2311 | connOkToAddRequest(ConnStateData::Pointer &conn) |
c4b7a5a9 | 2312 | { |
0655fa4d | 2313 | int result = conn->getConcurrentRequestCount() < (Config.onoff.pipeline_prefetch ? 2 : 1); |
62e76326 | 2314 | |
c4b7a5a9 | 2315 | if (!result) { |
bf8fe701 | 2316 | debugs(33, 3, "connOkToAddRequest: FD " << conn->fd << |
2317 | " max concurrent requests reached"); | |
2318 | debugs(33, 5, "connOkToAddRequest: FD " << conn->fd << | |
2319 | " defering new request until one is done"); | |
c4b7a5a9 | 2320 | } |
62e76326 | 2321 | |
c4b7a5a9 | 2322 | return result; |
2323 | } | |
2324 | ||
3b299123 | 2325 | /* |
2326 | * bodySizeLeft | |
2327 | * | |
2328 | * Report on the number of bytes of body content that we | |
2329 | * know are yet to be read on this connection. | |
2330 | */ | |
2331 | ssize_t | |
2332 | ConnStateData::bodySizeLeft() | |
2333 | { | |
5f8252d2 | 2334 | // XXX: this logic will not work for chunked requests with unknown sizes |
fc68f6b1 | 2335 | |
5f8252d2 | 2336 | if (bodyPipe != NULL) |
2337 | return bodyPipe->unproducedSize(); | |
3b299123 | 2338 | |
2339 | return 0; | |
2340 | } | |
2341 | ||
f900210a | 2342 | /* |
2343 | * Attempt to parse one or more requests from the input buffer. | |
2344 | * If a request is successfully parsed, even if the next request | |
2345 | * is only partially parsed, it will return TRUE. | |
2346 | * do_next_read is updated to indicate whether a read should be | |
2347 | * scheduled. | |
2348 | */ | |
2349 | static bool | |
2350 | clientParseRequest(ConnStateData::Pointer conn, bool &do_next_read) | |
2351 | { | |
2352 | method_t method; | |
f900210a | 2353 | ClientSocketContext *context; |
2354 | bool parsed_req = false; | |
8ae66e43 | 2355 | HttpVersion http_ver; |
a5baffba | 2356 | HttpParser hp; |
f900210a | 2357 | |
bf8fe701 | 2358 | debugs(33, 5, "clientParseRequest: FD " << conn->fd << ": attempting to parse"); |
f900210a | 2359 | |
3b299123 | 2360 | while (conn->in.notYetUsed > 0 && conn->bodySizeLeft() == 0) { |
f900210a | 2361 | connStripBufferWhitespace (conn); |
2362 | ||
fc68f6b1 | 2363 | /* Don't try to parse if the buffer is empty */ |
2364 | ||
2365 | if (conn->in.notYetUsed == 0) | |
2366 | break; | |
4681057e | 2367 | |
f900210a | 2368 | /* Limit the number of concurrent requests to 2 */ |
2369 | ||
2370 | if (!connOkToAddRequest(conn)) { | |
2371 | break; | |
2372 | } | |
2373 | ||
2374 | /* Should not be needed anymore */ | |
2375 | /* Terminate the string */ | |
2376 | conn->in.buf[conn->in.notYetUsed] = '\0'; | |
2377 | ||
fc68f6b1 | 2378 | /* Begin the parsing */ |
2379 | HttpParserInit(&hp, conn->in.buf, conn->in.notYetUsed); | |
a5baffba | 2380 | |
f900210a | 2381 | /* Process request */ |
fc68f6b1 | 2382 | PROF_start(parseHttpRequest); |
2383 | ||
a5baffba | 2384 | context = parseHttpRequest(conn, &hp, &method, &http_ver); |
fc68f6b1 | 2385 | |
2386 | PROF_stop(parseHttpRequest); | |
f900210a | 2387 | |
2388 | /* partial or incomplete request */ | |
2389 | if (!context) { | |
f900210a | 2390 | |
2391 | if (!connKeepReadingIncompleteRequest(conn)) | |
2392 | connCancelIncompleteRequests(conn); | |
2393 | ||
2394 | break; | |
2395 | } | |
2396 | ||
2397 | /* status -1 or 1 */ | |
2398 | if (context) { | |
bf8fe701 | 2399 | debugs(33, 5, "clientParseRequest: FD " << conn->fd << ": parsed a request"); |
f900210a | 2400 | commSetTimeout(conn->fd, Config.Timeout.lifetime, clientLifetimeTimeout, |
2401 | context->http); | |
2402 | ||
a5baffba | 2403 | clientProcessRequest(conn, &hp, context, method, http_ver); |
f900210a | 2404 | |
f900210a | 2405 | parsed_req = true; |
2406 | ||
2407 | if (context->mayUseConnection()) { | |
bf8fe701 | 2408 | debugs(33, 3, "clientParseRequest: Not reading, as this request may need the connection"); |
f900210a | 2409 | do_next_read = 0; |
2410 | break; | |
2411 | } | |
2412 | ||
2413 | if (!conn->flags.readMoreRequests) { | |
48962ba8 | 2414 | conn->flags.readMoreRequests = true; |
f900210a | 2415 | break; |
2416 | } | |
2417 | ||
3b299123 | 2418 | continue; /* while offset > 0 && conn->bodySizeLeft() == 0 */ |
f900210a | 2419 | } |
3b299123 | 2420 | } /* while offset > 0 && conn->bodySizeLeft() == 0 */ |
fc68f6b1 | 2421 | |
a5baffba | 2422 | /* XXX where to 'finish' the parsing pass? */ |
f900210a | 2423 | |
2424 | return parsed_req; | |
2425 | } | |
2426 | ||
c4b7a5a9 | 2427 | static void |
2428 | clientReadRequest(int fd, char *buf, size_t size, comm_err_t flag, int xerrno, | |
62e76326 | 2429 | void *data) |
c4b7a5a9 | 2430 | { |
3b299123 | 2431 | debugs(33,5,HERE << "clientReadRequest FD " << fd << " size " << size); |
a2ac85d9 | 2432 | ConnStateData::Pointer conn ((ConnStateData *)data); |
a46d2c0e | 2433 | conn->reading(false); |
a46d2c0e | 2434 | bool do_next_read = 1; /* the default _is_ to read data! - adrian */ |
c4b7a5a9 | 2435 | |
2436 | assert (fd == conn->fd); | |
2437 | ||
2438 | /* Bail out quickly on COMM_ERR_CLOSING - close handlers will tidy up */ | |
62e76326 | 2439 | |
c4b7a5a9 | 2440 | if (flag == COMM_ERR_CLOSING) { |
2441 | return; | |
2442 | } | |
62e76326 | 2443 | |
44db45e8 | 2444 | /* |
2445 | * Don't reset the timeout value here. The timeout value will be | |
2446 | * set to Config.Timeout.request by httpAccept() and | |
2447 | * clientWriteComplete(), and should apply to the request as a | |
2448 | * whole, not individual read() calls. Plus, it breaks our | |
2449 | * lame half-close detection | |
2450 | */ | |
f3400a93 | 2451 | if (connReadWasError(conn, flag, size, xerrno)) { |
62e76326 | 2452 | comm_close(fd); |
2453 | return; | |
7a2f978b | 2454 | } |
c4b7a5a9 | 2455 | |
2456 | if (flag == COMM_OK) { | |
62e76326 | 2457 | if (size > 0) { |
0b86805b | 2458 | kb_incr(&statCounter.client_http.kbytes_in, size); |
3b299123 | 2459 | |
5f8252d2 | 2460 | conn->handleReadData(buf, size); |
95ac44e6 | 2461 | |
62e76326 | 2462 | } else if (size == 0) { |
bf8fe701 | 2463 | debugs(33, 5, "clientReadRequest: FD " << fd << " closed?"); |
62e76326 | 2464 | |
2465 | if (connFinishedWithConn(conn, size)) { | |
2466 | comm_close(fd); | |
2467 | return; | |
2468 | } | |
2469 | ||
2470 | /* It might be half-closed, we can't tell */ | |
2471 | fd_table[fd].flags.socket_eof = 1; | |
2472 | ||
a46d2c0e | 2473 | commMarkHalfClosed(fd); |
2474 | ||
2475 | do_next_read = 0; | |
62e76326 | 2476 | |
2477 | fd_note(fd, "half-closed"); | |
2478 | ||
2479 | /* There is one more close check at the end, to detect aborted | |
2480 | * (partial) requests. At this point we can't tell if the request | |
2481 | * is partial. | |
2482 | */ | |
2483 | /* Continue to process previously read data */ | |
2484 | } | |
c4b7a5a9 | 2485 | } |
2486 | ||
b1ea6150 | 2487 | if (!conn->isOpen()) |
2488 | return; | |
2489 | ||
94439e4e | 2490 | /* Process next request */ |
0655fa4d | 2491 | if (conn->getConcurrentRequestCount() == 0) |
62e76326 | 2492 | fd_note(conn->fd, "Reading next request"); |
c8be6d7b | 2493 | |
f900210a | 2494 | if (! clientParseRequest(conn, do_next_read)) { |
2495 | /* | |
2496 | * If the client here is half closed and we failed | |
2497 | * to parse a request, close the connection. | |
2498 | * The above check with connFinishedWithConn() only | |
2499 | * succeeds _if_ the buffer is empty which it won't | |
2500 | * be if we have an incomplete request. | |
2501 | */ | |
62e76326 | 2502 | |
f900210a | 2503 | if (conn->getConcurrentRequestCount() == 0 && commIsHalfClosed(fd)) { |
bf8fe701 | 2504 | debugs(33, 5, "clientReadRequest: FD " << fd << ": half-closed connection, no completed request parsed, connection closing."); |
f900210a | 2505 | comm_close(fd); |
62e76326 | 2506 | } |
62e76326 | 2507 | |
f900210a | 2508 | clientAfterReadingRequests(fd, conn, do_next_read); |
2509 | } | |
94439e4e | 2510 | } |
2511 | ||
5f8252d2 | 2512 | // called when new request data has been read from the socket |
2513 | void | |
2514 | ConnStateData::handleReadData(char *buf, size_t size) | |
94439e4e | 2515 | { |
5f8252d2 | 2516 | char *current_buf = in.addressToReadInto(); |
62e76326 | 2517 | |
5f8252d2 | 2518 | if (buf != current_buf) |
2519 | xmemmove(current_buf, buf, size); | |
3b299123 | 2520 | |
5f8252d2 | 2521 | in.notYetUsed += size; |
fc68f6b1 | 2522 | |
5f8252d2 | 2523 | in.buf[in.notYetUsed] = '\0'; /* Terminate the string */ |
3b299123 | 2524 | |
5f8252d2 | 2525 | // if we are reading a body, stuff data into the body pipe |
2526 | if (bodyPipe != NULL) | |
2527 | handleRequestBodyData(); | |
94439e4e | 2528 | } |
2529 | ||
5f8252d2 | 2530 | // called when new request body data has been buffered in in.buf |
2531 | // may close the connection if we were closing and piped everything out | |
2532 | void | |
2533 | ConnStateData::handleRequestBodyData() | |
94439e4e | 2534 | { |
5f8252d2 | 2535 | assert(bodyPipe != NULL); |
2536 | ||
2537 | if (const size_t putSize = bodyPipe->putMoreData(in.buf, in.notYetUsed)) | |
2538 | connNoteUseOfBuffer(this, putSize); | |
2539 | ||
2540 | if (!bodyPipe->mayNeedMoreData()) { | |
2541 | // BodyPipe will clear us automagically when we produced everything | |
2542 | bodyPipe = NULL; | |
2543 | ||
2544 | debugs(33,5, HERE << "produced entire request body for FD " << fd); | |
62e76326 | 2545 | |
5f8252d2 | 2546 | if (closing()) { |
2547 | /* we've finished reading like good clients, | |
2548 | * now do the close that initiateClose initiated. | |
2549 | * | |
2550 | * XXX: do we have to close? why not check keepalive et. | |
2551 | * | |
2552 | * XXX: To support chunked requests safely, we need to handle | |
2553 | * the case of an endless request. This if-statement does not, | |
2554 | * because mayNeedMoreData is true if request size is not known. | |
2555 | */ | |
2556 | comm_close(fd); | |
2557 | } | |
94439e4e | 2558 | } |
5f8252d2 | 2559 | } |
55e44db9 | 2560 | |
5f8252d2 | 2561 | void |
2562 | ConnStateData::noteMoreBodySpaceAvailable(BodyPipe &) | |
2563 | { | |
2564 | handleRequestBodyData(); | |
2565 | } | |
2566 | ||
2567 | void | |
2568 | ConnStateData::noteBodyConsumerAborted(BodyPipe &) | |
2569 | { | |
2570 | if (!closing()) | |
2571 | startClosing("body consumer aborted"); | |
94439e4e | 2572 | } |
2573 | ||
7a2f978b | 2574 | /* general lifetime handler for HTTP requests */ |
2575 | static void | |
2576 | requestTimeout(int fd, void *data) | |
2577 | { | |
ad63ceea | 2578 | #if THIS_CONFUSES_PERSISTENT_CONNECTION_AWARE_BROWSERS_AND_USERS |
7a2f978b | 2579 | ConnStateData *conn = data; |
bf8fe701 | 2580 | debugs(33, 3, "requestTimeout: FD " << fd << ": lifetime is expired."); |
62e76326 | 2581 | |
2b663917 | 2582 | if (COMMIO_FD_WRITECB(fd)->active) { |
dec5db5d | 2583 | /* FIXME: If this code is reinstated, check the conn counters, |
2584 | * not the fd table state | |
2585 | */ | |
62e76326 | 2586 | /* |
2587 | * Some data has been sent to the client, just close the FD | |
2588 | */ | |
2589 | comm_close(fd); | |
7a2f978b | 2590 | } else if (conn->nrequests) { |
62e76326 | 2591 | /* |
2592 | * assume its a persistent connection; just close it | |
2593 | */ | |
2594 | comm_close(fd); | |
7a2f978b | 2595 | } else { |
62e76326 | 2596 | /* |
2597 | * Generate an error | |
2598 | */ | |
59a1efb2 | 2599 | ClientHttpRequest **H; |
62e76326 | 2600 | clientStreamNode *node; |
59a1efb2 | 2601 | ClientHttpRequest *http = |
62e76326 | 2602 | parseHttpRequestAbort(conn, "error:Connection%20lifetime%20expired"); |
2603 | node = http->client_stream.tail->prev->data; | |
0655fa4d | 2604 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
2605 | assert (repContext); | |
2606 | repContext->setReplyToError(ERR_LIFETIME_EXP, | |
2607 | HTTP_REQUEST_TIMEOUT, METHOD_NONE, "N/A", &conn->peer.sin_addr, | |
2608 | NULL, NULL, NULL); | |
62e76326 | 2609 | /* No requests can be outstanded */ |
2610 | assert(conn->chr == NULL); | |
2611 | /* add to the client request queue */ | |
2612 | ||
2613 | for (H = &conn->chr; *H; H = &(*H)->next) | |
2614 | ||
2615 | ; | |
2616 | *H = http; | |
2617 | ||
2618 | clientStreamRead(http->client_stream.tail->data, http, 0, | |
2619 | HTTP_REQBUF_SZ, context->reqbuf); | |
2620 | ||
2621 | /* | |
2622 | * if we don't close() here, we still need a timeout handler! | |
2623 | */ | |
2624 | commSetTimeout(fd, 30, requestTimeout, conn); | |
2625 | ||
2626 | /* | |
2627 | * Aha, but we don't want a read handler! | |
2628 | */ | |
2629 | commSetSelect(fd, COMM_SELECT_READ, NULL, NULL, 0); | |
7a2f978b | 2630 | } |
62e76326 | 2631 | |
af57a2e3 | 2632 | #else |
2633 | /* | |
62e76326 | 2634 | * Just close the connection to not confuse browsers |
2635 | * using persistent connections. Some browsers opens | |
2636 | * an connection and then does not use it until much | |
2637 | * later (presumeably because the request triggering | |
2638 | * the open has already been completed on another | |
2639 | * connection) | |
2640 | */ | |
bf8fe701 | 2641 | debugs(33, 3, "requestTimeout: FD " << fd << ": lifetime is expired."); |
62e76326 | 2642 | |
af57a2e3 | 2643 | comm_close(fd); |
62e76326 | 2644 | |
af57a2e3 | 2645 | #endif |
7a2f978b | 2646 | } |
2647 | ||
b5c39993 | 2648 | static void |
2649 | clientLifetimeTimeout(int fd, void *data) | |
2650 | { | |
59a1efb2 | 2651 | ClientHttpRequest *http = (ClientHttpRequest *)data; |
bf8fe701 | 2652 | debugs(33, 1, "WARNING: Closing client " << inet_ntoa(http->getConn()->peer.sin_addr) << |
2653 | " connection due to lifetime timeout"); | |
2654 | debugs(33, 1, "\t" << http->uri); | |
b5c39993 | 2655 | comm_close(fd); |
2656 | } | |
2657 | ||
a46d2c0e | 2658 | static bool |
2659 | okToAccept() | |
7a2f978b | 2660 | { |
3d6629c6 | 2661 | static time_t last_warn = 0; |
62e76326 | 2662 | |
3d6629c6 | 2663 | if (fdNFree() >= RESERVED_FD) |
a46d2c0e | 2664 | return true; |
62e76326 | 2665 | |
3d6629c6 | 2666 | if (last_warn + 15 < squid_curtime) { |
aefecdd3 | 2667 | debugs(33, 0, HERE << "WARNING! Your cache is running out of filedescriptors"); |
62e76326 | 2668 | last_warn = squid_curtime; |
3d6629c6 | 2669 | } |
62e76326 | 2670 | |
a46d2c0e | 2671 | return false; |
7a2f978b | 2672 | } |
2673 | ||
c8be6d7b | 2674 | ConnStateData * |
62e76326 | 2675 | |
3f38a55e | 2676 | connStateCreate(struct sockaddr_in *peer, struct sockaddr_in *me, int fd, http_port_list *port) |
c8be6d7b | 2677 | { |
a46d2c0e | 2678 | ConnStateData *result = new ConnStateData; |
c4b7a5a9 | 2679 | result->peer = *peer; |
2680 | result->log_addr = peer->sin_addr; | |
c8be6d7b | 2681 | result->log_addr.s_addr &= Config.Addrs.client_netmask.s_addr; |
c4b7a5a9 | 2682 | result->me = *me; |
c8be6d7b | 2683 | result->fd = fd; |
e6ccf245 | 2684 | result->in.buf = (char *)memAllocBuf(CLIENT_REQ_BUF_SZ, &result->in.allocatedSize); |
3f38a55e | 2685 | result->port = cbdataReference(port); |
62e76326 | 2686 | |
2687 | if (port->transparent) | |
2688 | { | |
2689 | ||
2690 | struct sockaddr_in dst; | |
2691 | ||
2692 | if (clientNatLookup(fd, *me, *peer, &dst) == 0) { | |
2693 | result->me = dst; /* XXX This should be moved to another field */ | |
a46d2c0e | 2694 | result->transparent(true); |
62e76326 | 2695 | } |
3f38a55e | 2696 | } |
62e76326 | 2697 | |
5529ca8a | 2698 | if (port->disable_pmtu_discovery != DISABLE_PMTU_OFF && |
2699 | (result->transparent() || port->disable_pmtu_discovery == DISABLE_PMTU_ALWAYS)) | |
2700 | { | |
2701 | #if defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DONT) | |
2702 | int i = IP_PMTUDISC_DONT; | |
2703 | setsockopt(fd, SOL_IP, IP_MTU_DISCOVER, &i, sizeof i); | |
2704 | ||
2705 | #else | |
2706 | ||
2707 | static int reported = 0; | |
2708 | ||
2709 | if (!reported) { | |
bf8fe701 | 2710 | debugs(33, 1, "Notice: httpd_accel_no_pmtu_disc not supported on your platform"); |
5529ca8a | 2711 | reported = 1; |
2712 | } | |
2713 | ||
2714 | #endif | |
2715 | ||
2716 | } | |
2717 | ||
48962ba8 | 2718 | result->flags.readMoreRequests = true; |
c8be6d7b | 2719 | return result; |
2720 | } | |
2721 | ||
bf8e5903 | 2722 | /* Handle a new connection on HTTP socket. */ |
7a2f978b | 2723 | void |
ee0989f2 | 2724 | httpAccept(int sock, int newfd, ConnectionDetail *details, |
62e76326 | 2725 | comm_err_t flag, int xerrno, void *data) |
7a2f978b | 2726 | { |
3f38a55e | 2727 | http_port_list *s = (http_port_list *)data; |
7a2f978b | 2728 | ConnStateData *connState = NULL; |
02d1422b | 2729 | |
2730 | if (flag == COMM_ERR_CLOSING) { | |
2731 | return; | |
2732 | } | |
2733 | ||
a46d2c0e | 2734 | if (!okToAccept()) |
2735 | AcceptLimiter::Instance().defer (sock, httpAccept, data); | |
2736 | else | |
2737 | /* kick off another one for later */ | |
2738 | comm_accept(sock, httpAccept, data); | |
c4b7a5a9 | 2739 | |
62e76326 | 2740 | if (flag != COMM_OK) { |
bf8fe701 | 2741 | debugs(33, 1, "httpAccept: FD " << sock << ": accept failure: " << xstrerr(xerrno)); |
62e76326 | 2742 | return; |
2743 | } | |
2744 | ||
bf8fe701 | 2745 | debugs(33, 4, "httpAccept: FD " << newfd << ": accepted"); |
62e76326 | 2746 | fd_note(newfd, "client http connect"); |
2747 | connState = connStateCreate(&details->peer, &details->me, newfd, s); | |
62e76326 | 2748 | comm_add_close_handler(newfd, connStateFree, connState); |
2749 | ||
2750 | if (Config.onoff.log_fqdn) | |
2751 | fqdncache_gethostbyaddr(details->peer.sin_addr, FQDN_LOOKUP_IF_MISS); | |
2752 | ||
2753 | commSetTimeout(newfd, Config.Timeout.request, requestTimeout, connState); | |
2754 | ||
3898f57f | 2755 | #if USE_IDENT |
62e76326 | 2756 | |
2757 | ACLChecklist identChecklist; | |
2758 | ||
2759 | identChecklist.src_addr = details->peer.sin_addr; | |
2760 | ||
2761 | identChecklist.my_addr = details->me.sin_addr; | |
2762 | ||
2763 | identChecklist.my_port = ntohs(details->me.sin_port); | |
2764 | ||
506768d9 | 2765 | identChecklist.accessList = cbdataReference(Config.accessList.identLookup); |
b448c119 | 2766 | |
108d65b2 | 2767 | /* cbdataReferenceDone() happens in either fastCheck() or ~ACLCheckList */ |
2768 | ||
b448c119 | 2769 | if (identChecklist.fastCheck()) |
62e76326 | 2770 | identStart(&details->me, &details->peer, clientIdentDone, connState); |
2771 | ||
b448c119 | 2772 | |
3898f57f | 2773 | #endif |
62e76326 | 2774 | |
a46d2c0e | 2775 | connState->readSomeData(); |
62e76326 | 2776 | |
2777 | clientdbEstablished(details->peer.sin_addr, 1); | |
2778 | ||
2779 | incoming_sockets_accepted++; | |
7a2f978b | 2780 | } |
2781 | ||
1f7c9178 | 2782 | #if USE_SSL |
2783 | ||
2784 | /* negotiate an SSL connection */ | |
2785 | static void | |
2786 | clientNegotiateSSL(int fd, void *data) | |
2787 | { | |
e6ccf245 | 2788 | ConnStateData *conn = (ConnStateData *)data; |
1f7c9178 | 2789 | X509 *client_cert; |
a7ad6e4e | 2790 | SSL *ssl = fd_table[fd].ssl; |
1f7c9178 | 2791 | int ret; |
2792 | ||
a7ad6e4e | 2793 | if ((ret = SSL_accept(ssl)) <= 0) { |
62e76326 | 2794 | int ssl_error = SSL_get_error(ssl, ret); |
2795 | ||
2796 | switch (ssl_error) { | |
2797 | ||
2798 | case SSL_ERROR_WANT_READ: | |
2799 | commSetSelect(fd, COMM_SELECT_READ, clientNegotiateSSL, conn, 0); | |
2800 | return; | |
2801 | ||
2802 | case SSL_ERROR_WANT_WRITE: | |
2803 | commSetSelect(fd, COMM_SELECT_WRITE, clientNegotiateSSL, conn, 0); | |
2804 | return; | |
2805 | ||
6de9e64b | 2806 | case SSL_ERROR_SYSCALL: |
2807 | ||
2808 | if (ret == 0) { | |
bf8fe701 | 2809 | debugs(83, 2, "clientNegotiateSSL: Error negotiating SSL connection on FD " << fd << ": Aborted by client"); |
6de9e64b | 2810 | comm_close(fd); |
2811 | return; | |
2812 | } else { | |
2813 | int hard = 1; | |
2814 | ||
2815 | if (errno == ECONNRESET) | |
2816 | hard = 0; | |
2817 | ||
bf8fe701 | 2818 | debugs(83, hard ? 1 : 2, "clientNegotiateSSL: Error negotiating SSL connection on FD " << |
2819 | fd << ": " << strerror(errno) << " (" << errno << ")"); | |
6de9e64b | 2820 | |
2821 | comm_close(fd); | |
2822 | ||
2823 | return; | |
2824 | } | |
2825 | ||
2826 | case SSL_ERROR_ZERO_RETURN: | |
bf8fe701 | 2827 | debugs(83, 1, "clientNegotiateSSL: Error negotiating SSL connection on FD " << fd << ": Closed by client"); |
6de9e64b | 2828 | comm_close(fd); |
2829 | return; | |
2830 | ||
62e76326 | 2831 | default: |
bf8fe701 | 2832 | debugs(83, 1, "clientNegotiateSSL: Error negotiating SSL connection on FD " << |
2833 | fd << ": " << ERR_error_string(ERR_get_error(), NULL) << | |
2834 | " (" << ssl_error << "/" << ret << ")"); | |
62e76326 | 2835 | comm_close(fd); |
2836 | return; | |
2837 | } | |
2838 | ||
2839 | /* NOTREACHED */ | |
1f7c9178 | 2840 | } |
62e76326 | 2841 | |
6de9e64b | 2842 | if (SSL_session_reused(ssl)) { |
bf8fe701 | 2843 | debugs(83, 2, "clientNegotiateSSL: Session " << SSL_get_session(ssl) << |
2844 | " reused on FD " << fd << " (" << fd_table[fd].ipaddr << ":" << (int)fd_table[fd].remote_port << ")"); | |
6de9e64b | 2845 | } else { |
2846 | if (do_debug(83, 4)) { | |
2847 | /* Write out the SSL session details.. actually the call below, but | |
2848 | * OpenSSL headers do strange typecasts confusing GCC.. */ | |
2849 | /* PEM_write_SSL_SESSION(debug_log, SSL_get_session(ssl)); */ | |
afdd443f | 2850 | #if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x00908000L |
9f3de01a | 2851 | 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 | 2852 | |
0fd2205b | 2853 | #elif (ALLOW_ALWAYS_SSL_SESSION_DETAIL == 1) |
2930f303 | 2854 | |
0fd2205b | 2855 | /* When using gcc 3.3.x and OpenSSL 0.9.7x sometimes a compile error can occur here. |
2856 | * This is caused by an unpredicatble gcc behaviour on a cast of the first argument | |
2857 | * of PEM_ASN1_write(). For this reason this code section is disabled. To enable it, | |
2858 | * define ALLOW_ALWAYS_SSL_SESSION_DETAIL=1. | |
2859 | * Because there are two possible usable cast, if you get an error here, try the other | |
2860 | * commented line. */ | |
2861 | ||
2862 | PEM_ASN1_write((int(*)())i2d_SSL_SESSION, PEM_STRING_SSL_SESSION, debug_log, (char *)SSL_get_session(ssl), NULL,NULL,0,NULL,NULL); | |
2863 | /* PEM_ASN1_write((int(*)(...))i2d_SSL_SESSION, PEM_STRING_SSL_SESSION, debug_log, (char *)SSL_get_session(ssl), NULL,NULL,0,NULL,NULL); */ | |
2930f303 | 2864 | |
0e33d58c | 2865 | #else |
2866 | ||
bf8fe701 | 2867 | debugs(83, 4, "With " OPENSSL_VERSION_TEXT ", session details are available only defining ALLOW_ALWAYS_SSL_SESSION_DETAIL=1 in the source." ); |
0fd2205b | 2868 | |
0e33d58c | 2869 | #endif |
6de9e64b | 2870 | /* Note: This does not automatically fflush the log file.. */ |
2871 | } | |
2872 | ||
bf8fe701 | 2873 | debugs(83, 2, "clientNegotiateSSL: New session " << |
2874 | SSL_get_session(ssl) << " on FD " << fd << " (" << | |
2875 | fd_table[fd].ipaddr << ":" << (int)fd_table[fd].remote_port << | |
2876 | ")"); | |
6de9e64b | 2877 | } |
2878 | ||
bf8fe701 | 2879 | debugs(83, 3, "clientNegotiateSSL: FD " << fd << " negotiated cipher " << |
2880 | SSL_get_cipher(ssl)); | |
1f7c9178 | 2881 | |
6de9e64b | 2882 | client_cert = SSL_get_peer_certificate(ssl); |
62e76326 | 2883 | |
1f7c9178 | 2884 | if (client_cert != NULL) { |
bf8fe701 | 2885 | debugs(83, 3, "clientNegotiateSSL: FD " << fd << |
2886 | " client certificate: subject: " << | |
2887 | X509_NAME_oneline(X509_get_subject_name(client_cert), 0, 0)); | |
2888 | ||
2889 | debugs(83, 3, "clientNegotiateSSL: FD " << fd << | |
2890 | " client certificate: issuer: " << | |
2891 | X509_NAME_oneline(X509_get_issuer_name(client_cert), 0, 0)); | |
1f7c9178 | 2892 | |
1f7c9178 | 2893 | |
62e76326 | 2894 | X509_free(client_cert); |
1f7c9178 | 2895 | } else { |
bf8fe701 | 2896 | debugs(83, 5, "clientNegotiateSSL: FD " << fd << |
2897 | " has no certificate."); | |
1f7c9178 | 2898 | } |
2899 | ||
a46d2c0e | 2900 | conn->readSomeData(); |
1f7c9178 | 2901 | } |
2902 | ||
2903 | /* handle a new HTTPS connection */ | |
2904 | static void | |
15595aab | 2905 | httpsAccept(int sock, int newfd, ConnectionDetail *details, |
62e76326 | 2906 | comm_err_t flag, int xerrno, void *data) |
1f7c9178 | 2907 | { |
3f38a55e | 2908 | https_port_list *s = (https_port_list *)data; |
2909 | SSL_CTX *sslContext = s->sslContext; | |
1f7c9178 | 2910 | ConnStateData *connState = NULL; |
1f7c9178 | 2911 | SSL *ssl; |
2912 | int ssl_error; | |
c4b7a5a9 | 2913 | |
02d1422b | 2914 | if (flag == COMM_ERR_CLOSING) { |
2915 | return; | |
2916 | } | |
2917 | ||
a46d2c0e | 2918 | if (!okToAccept()) |
2919 | AcceptLimiter::Instance().defer (sock, httpsAccept, data); | |
2920 | else | |
2921 | /* kick off another one for later */ | |
2922 | comm_accept(sock, httpsAccept, data); | |
2923 | ||
c4b7a5a9 | 2924 | if (flag != COMM_OK) { |
62e76326 | 2925 | errno = xerrno; |
bf8fe701 | 2926 | debugs(33, 1, "httpsAccept: FD " << sock << ": accept failure: " << xstrerr(xerrno)); |
62e76326 | 2927 | return; |
c4b7a5a9 | 2928 | } |
62e76326 | 2929 | |
c4b7a5a9 | 2930 | if ((ssl = SSL_new(sslContext)) == NULL) { |
62e76326 | 2931 | ssl_error = ERR_get_error(); |
bf8fe701 | 2932 | debugs(83, 1, "httpsAccept: Error allocating handle: " << ERR_error_string(ssl_error, NULL) ); |
556fb4a3 | 2933 | comm_close(newfd); |
62e76326 | 2934 | return; |
c4b7a5a9 | 2935 | } |
2936 | ||
2937 | SSL_set_fd(ssl, newfd); | |
2938 | fd_table[newfd].ssl = ssl; | |
2939 | fd_table[newfd].read_method = &ssl_read_method; | |
2940 | fd_table[newfd].write_method = &ssl_write_method; | |
94c3d66f | 2941 | |
bf8fe701 | 2942 | debugs(33, 5, "httpsAccept: FD " << newfd << " accepted, starting SSL negotiation."); |
3f38a55e | 2943 | fd_note(newfd, "client https connect"); |
3f38a55e | 2944 | connState = connStateCreate(&details->peer, &details->me, newfd, (http_port_list *)s); |
c4b7a5a9 | 2945 | comm_add_close_handler(newfd, connStateFree, connState); |
62e76326 | 2946 | |
c4b7a5a9 | 2947 | if (Config.onoff.log_fqdn) |
62e76326 | 2948 | fqdncache_gethostbyaddr(details->peer.sin_addr, FQDN_LOOKUP_IF_MISS); |
2949 | ||
c4b7a5a9 | 2950 | commSetTimeout(newfd, Config.Timeout.request, requestTimeout, connState); |
62e76326 | 2951 | |
1f7c9178 | 2952 | #if USE_IDENT |
62e76326 | 2953 | |
8000a965 | 2954 | ACLChecklist identChecklist; |
62e76326 | 2955 | |
15595aab | 2956 | identChecklist.src_addr = details->peer.sin_addr; |
62e76326 | 2957 | |
15595aab | 2958 | identChecklist.my_addr = details->me.sin_addr; |
62e76326 | 2959 | |
15595aab | 2960 | identChecklist.my_port = ntohs(details->me.sin_port); |
62e76326 | 2961 | |
506768d9 | 2962 | identChecklist.accessList = cbdataReference(Config.accessList.identLookup); |
010af6e6 | 2963 | |
108d65b2 | 2964 | /* cbdataReferenceDone() happens in either fastCheck() or ~ACLCheckList */ |
2965 | ||
010af6e6 | 2966 | if (identChecklist.fastCheck()) |
62e76326 | 2967 | identStart(&details->me, &details->peer, clientIdentDone, connState); |
2968 | ||
1f7c9178 | 2969 | #endif |
62e76326 | 2970 | |
c4b7a5a9 | 2971 | commSetSelect(newfd, COMM_SELECT_READ, clientNegotiateSSL, connState, 0); |
62e76326 | 2972 | |
15595aab | 2973 | clientdbEstablished(details->peer.sin_addr, 1); |
62e76326 | 2974 | |
3f38a55e | 2975 | incoming_sockets_accepted++; |
1f7c9178 | 2976 | } |
2977 | ||
2978 | #endif /* USE_SSL */ | |
2979 | ||
15df8349 | 2980 | |
d193a436 | 2981 | static void |
15df8349 | 2982 | clientHttpConnectionsOpen(void) |
2983 | { | |
3f38a55e | 2984 | http_port_list *s; |
15df8349 | 2985 | int fd; |
62e76326 | 2986 | |
7e3ce7b9 | 2987 | for (s = Config.Sockaddr.http; s; s = s->next) { |
62e76326 | 2988 | if (MAXHTTPPORTS == NHttpSockets) { |
bf8fe701 | 2989 | debugs(1, 1, "WARNING: You have too many 'http_port' lines."); |
2990 | debugs(1, 1, " The limit is " << MAXHTTPPORTS); | |
62e76326 | 2991 | continue; |
2992 | } | |
2993 | ||
2994 | enter_suid(); | |
2995 | fd = comm_open(SOCK_STREAM, | |
bdb741f4 | 2996 | IPPROTO_TCP, |
62e76326 | 2997 | s->s.sin_addr, |
2998 | ntohs(s->s.sin_port), COMM_NONBLOCKING, "HTTP Socket"); | |
2999 | leave_suid(); | |
3000 | ||
3001 | if (fd < 0) | |
3002 | continue; | |
3003 | ||
3004 | comm_listen(fd); | |
3005 | ||
3006 | comm_accept(fd, httpAccept, s); | |
3007 | ||
bf8fe701 | 3008 | debugs(1, 1, "Accepting " << |
3009 | (s->transparent ? "transparently proxied" : | |
3010 | s->accel ? "accelerated" : "" ) | |
3011 | << " HTTP connections at " | |
3012 | << inet_ntoa(s->s.sin_addr) << ", port " | |
3013 | << (int) ntohs(s->s.sin_port) << ", FD " << fd << "." ); | |
62e76326 | 3014 | |
3015 | HttpSockets[NHttpSockets++] = fd; | |
15df8349 | 3016 | } |
d193a436 | 3017 | } |
3018 | ||
3019 | #if USE_SSL | |
3020 | static void | |
3021 | clientHttpsConnectionsOpen(void) | |
3022 | { | |
3023 | https_port_list *s; | |
d193a436 | 3024 | int fd; |
62e76326 | 3025 | |
3f38a55e | 3026 | for (s = Config.Sockaddr.https; s; s = (https_port_list *)s->http.next) { |
62e76326 | 3027 | if (MAXHTTPPORTS == NHttpSockets) { |
bf8fe701 | 3028 | debugs(1, 1, "WARNING: You have too many 'https_port' lines."); |
3029 | debugs(1, 1, " The limit is " << MAXHTTPPORTS); | |
62e76326 | 3030 | continue; |
3031 | } | |
3032 | ||
f9ad0106 | 3033 | if (s->sslContext == NULL) { |
bf8fe701 | 3034 | debugs(1, 1, "Can not accept HTTPS connections at " << |
3035 | inet_ntoa(s->http.s.sin_addr) << ", port " << | |
3036 | (int) ntohs(s->http.s.sin_port)); | |
f9ad0106 | 3037 | } |
3038 | ||
62e76326 | 3039 | enter_suid(); |
3040 | fd = comm_open(SOCK_STREAM, | |
bdb741f4 | 3041 | IPPROTO_TCP, |
62e76326 | 3042 | s->http.s.sin_addr, |
3043 | ntohs(s->http.s.sin_port), COMM_NONBLOCKING, "HTTPS Socket"); | |
3044 | leave_suid(); | |
3045 | ||
3046 | if (fd < 0) | |
3047 | continue; | |
3048 | ||
3049 | comm_listen(fd); | |
3050 | ||
3051 | comm_accept(fd, httpsAccept, s); | |
3052 | ||
bf8fe701 | 3053 | debugs(1, 1, "Accepting HTTPS connections at " << |
3054 | inet_ntoa(s->http.s.sin_addr) << ", port " << | |
3055 | (int) ntohs(s->http.s.sin_port) << ", FD " << fd << "."); | |
62e76326 | 3056 | |
3057 | HttpSockets[NHttpSockets++] = fd; | |
1f7c9178 | 3058 | } |
d193a436 | 3059 | } |
3060 | ||
3061 | #endif | |
3062 | ||
3063 | void | |
3064 | clientOpenListenSockets(void) | |
3065 | { | |
3066 | clientHttpConnectionsOpen(); | |
3067 | #if USE_SSL | |
62e76326 | 3068 | |
d193a436 | 3069 | clientHttpsConnectionsOpen(); |
1f7c9178 | 3070 | #endif |
62e76326 | 3071 | |
15df8349 | 3072 | if (NHttpSockets < 1) |
62e76326 | 3073 | fatal("Cannot open HTTP Port"); |
15df8349 | 3074 | } |
edce4d98 | 3075 | |
c0fbae16 | 3076 | void |
3077 | clientHttpConnectionsClose(void) | |
3078 | { | |
3079 | int i; | |
62e76326 | 3080 | |
c0fbae16 | 3081 | for (i = 0; i < NHttpSockets; i++) { |
62e76326 | 3082 | if (HttpSockets[i] >= 0) { |
bf8fe701 | 3083 | debugs(1, 1, "FD " << HttpSockets[i] << |
3084 | " Closing HTTP connection"); | |
62e76326 | 3085 | comm_close(HttpSockets[i]); |
3086 | HttpSockets[i] = -1; | |
3087 | } | |
c0fbae16 | 3088 | } |
62e76326 | 3089 | |
c0fbae16 | 3090 | NHttpSockets = 0; |
3091 | } | |
f66a9ef4 | 3092 | |
3093 | int | |
190154cf | 3094 | varyEvaluateMatch(StoreEntry * entry, HttpRequest * request) |
f66a9ef4 | 3095 | { |
3096 | const char *vary = request->vary_headers; | |
a9925b40 | 3097 | int has_vary = entry->getReply()->header.has(HDR_VARY); |
f66a9ef4 | 3098 | #if X_ACCELERATOR_VARY |
62e76326 | 3099 | |
edce4d98 | 3100 | has_vary |= |
a9925b40 | 3101 | entry->getReply()->header.has(HDR_X_ACCELERATOR_VARY); |
f66a9ef4 | 3102 | #endif |
62e76326 | 3103 | |
f66a9ef4 | 3104 | if (!has_vary || !entry->mem_obj->vary_headers) { |
62e76326 | 3105 | if (vary) { |
3106 | /* Oops... something odd is going on here.. */ | |
bf8fe701 | 3107 | debugs(33, 1, "varyEvaluateMatch: Oops. Not a Vary object on second attempt, '" << |
3108 | entry->mem_obj->url << "' '" << vary << "'"); | |
62e76326 | 3109 | safe_free(request->vary_headers); |
3110 | return VARY_CANCEL; | |
3111 | } | |
3112 | ||
3113 | if (!has_vary) { | |
3114 | /* This is not a varying object */ | |
3115 | return VARY_NONE; | |
3116 | } | |
3117 | ||
3118 | /* virtual "vary" object found. Calculate the vary key and | |
3119 | * continue the search | |
3120 | */ | |
3121 | vary = httpMakeVaryMark(request, entry->getReply()); | |
3122 | ||
3123 | if (vary) { | |
3124 | request->vary_headers = xstrdup(vary); | |
3125 | return VARY_OTHER; | |
3126 | } else { | |
3127 | /* Ouch.. we cannot handle this kind of variance */ | |
3128 | /* XXX This cannot really happen, but just to be complete */ | |
3129 | return VARY_CANCEL; | |
3130 | } | |
f66a9ef4 | 3131 | } else { |
62e76326 | 3132 | if (!vary) { |
3133 | vary = httpMakeVaryMark(request, entry->getReply()); | |
3134 | ||
3135 | if (vary) | |
3136 | request->vary_headers = xstrdup(vary); | |
3137 | } | |
3138 | ||
3139 | if (!vary) { | |
3140 | /* Ouch.. we cannot handle this kind of variance */ | |
3141 | /* XXX This cannot really happen, but just to be complete */ | |
3142 | return VARY_CANCEL; | |
3143 | } else if (strcmp(vary, entry->mem_obj->vary_headers) == 0) { | |
3144 | return VARY_MATCH; | |
3145 | } else { | |
3146 | /* Oops.. we have already been here and still haven't | |
3147 | * found the requested variant. Bail out | |
3148 | */ | |
bf8fe701 | 3149 | debugs(33, 1, "varyEvaluateMatch: Oops. Not a Vary match on second attempt, '" << |
3150 | entry->mem_obj->url << "' '" << vary << "'"); | |
62e76326 | 3151 | return VARY_CANCEL; |
3152 | } | |
f66a9ef4 | 3153 | } |
3154 | } | |
28d4805a | 3155 | |
4fb35c3c | 3156 | ACLChecklist * |
59a1efb2 | 3157 | clientAclChecklistCreate(const acl_access * acl, ClientHttpRequest * http) |
28d4805a | 3158 | { |
4fb35c3c | 3159 | ACLChecklist *ch; |
a2ac85d9 | 3160 | ConnStateData::Pointer conn = http->getConn(); |
c53577d9 | 3161 | ch = aclChecklistCreate(acl, http->request, conn.getRaw() != NULL ? conn->rfc931 : dash_str); |
28d4805a | 3162 | |
3163 | /* | |
3164 | * hack for ident ACL. It needs to get full addresses, and a place to store | |
3165 | * the ident result on persistent connections... | |
3166 | */ | |
3167 | /* connection oriented auth also needs these two lines for it's operation. */ | |
3168 | /* | |
3169 | * Internal requests do not have a connection reference, because: A) their | |
3170 | * byte count may be transformed before being applied to an outbound | |
3171 | * connection B) they are internal - any limiting on them should be done on | |
3172 | * the server end. | |
3173 | */ | |
62e76326 | 3174 | |
c53577d9 | 3175 | if (conn.getRaw() != NULL) |
a2ac85d9 | 3176 | ch->conn(conn); /* unreferenced in acl.cc */ |
28d4805a | 3177 | |
3178 | return ch; | |
3179 | } | |
a46d2c0e | 3180 | |
3181 | CBDATA_CLASS_INIT(ConnStateData); | |
3182 | ||
3b299123 | 3183 | ConnStateData::ConnStateData() : transparent_ (false), reading_ (false), closing_ (false) |
b65351fa | 3184 | { |
3185 | openReference = this; | |
3186 | } | |
a46d2c0e | 3187 | |
3188 | bool | |
3189 | ConnStateData::transparent() const | |
3190 | { | |
3191 | return transparent_; | |
3192 | } | |
3193 | ||
3194 | void | |
3195 | ConnStateData::transparent(bool const anInt) | |
3196 | { | |
3197 | transparent_ = anInt; | |
3198 | } | |
3199 | ||
3200 | bool | |
3201 | ConnStateData::reading() const | |
3202 | { | |
3203 | return reading_; | |
3204 | } | |
3205 | ||
3206 | void | |
3207 | ConnStateData::reading(bool const newBool) | |
3208 | { | |
3209 | assert (reading() != newBool); | |
3210 | reading_ = newBool; | |
3211 | } | |
3212 | ||
5f8252d2 | 3213 | |
3214 | BodyPipe::Pointer | |
3215 | ConnStateData::expectRequestBody(size_t size) | |
3216 | { | |
3217 | bodyPipe = new BodyPipe(this); | |
3218 | bodyPipe->setBodySize(size); | |
3219 | return bodyPipe; | |
3220 | } | |
3221 | ||
55e44db9 | 3222 | bool |
3223 | ConnStateData::closing() const | |
3224 | { | |
3225 | return closing_; | |
3226 | } | |
3227 | ||
fc68f6b1 | 3228 | // Called by ClientSocketContext to give the connection a chance to read |
5f8252d2 | 3229 | // the entire body before closing the socket. |
55e44db9 | 3230 | void |
5f8252d2 | 3231 | ConnStateData::startClosing(const char *reason) |
55e44db9 | 3232 | { |
5f8252d2 | 3233 | debugs(33, 5, HERE << "startClosing " << this << " for " << reason); |
3234 | assert(!closing()); | |
3235 | closing_ = true; | |
3236 | ||
3237 | assert(bodyPipe != NULL); | |
3238 | assert(bodySizeLeft() > 0); | |
3239 | ||
3240 | // We do not have to abort the body pipeline because we are going to | |
3241 | // read the entire body anyway. | |
3242 | // Perhaps an ICAP server wants to log the complete request. | |
3243 | ||
3244 | // If a consumer abort have caused this closing, we may get stuck | |
3245 | // as nobody is consuming our data. Allow auto-consumption. | |
3246 | bodyPipe->enableAutoConsumption(); | |
55e44db9 | 3247 | } |
3248 | ||
a46d2c0e | 3249 | char * |
3250 | ConnStateData::In::addressToReadInto() const | |
3251 | { | |
3252 | return buf + notYetUsed; | |
3253 | } | |
3254 | ||
3255 | ConnStateData::In::In() : buf (NULL), notYetUsed (0), allocatedSize (0) | |
3256 | {} | |
3257 | ||
3258 | ConnStateData::In::~In() | |
3259 | { | |
3260 | if (allocatedSize) | |
3261 | memFreeBuf(allocatedSize, buf); | |
3262 | } |